2024-03-29T12:20:48Zhttps://elib.belstu.by/oai/requestoai:elib.belstu.by:123456789/119302020-10-21T07:36:49Zcom_123456789_20520com_123456789_118col_123456789_20522
Development of flame-retarded polyamide composition with improved processability
Kostsyuchenko, М. А.
Revyako, М. М.
полиамидная композиция
характеристики полимерных композиций
The article describes influence of reduction of complex flame-retardant (triazine and red phosphorus) and grafted olefin copolymer on performance characteristics of polymeric compositions based on polyamide-6, and also on their extrusion processability. Optimum on structure and final properties polyamide composition is offered for use in manufacture of corrugated tubes for electric harness.
2017-03-10T07:56:43Z
2017-03-10T07:56:43Z
2017-03-10T07:56:43Z
2013
Article
Kostsyuchenko, М. А. Development of flame-retarded polyamide composition with improved processability / М. А. Kostsyuchenko, М. М. Revyako // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 99-102.
https://elib.belstu.by/handle/123456789/11930
678.2:614.841.41
en
BSTU
oai:elib.belstu.by:123456789/119452020-10-21T07:36:52Zcom_123456789_20520com_123456789_118col_123456789_20522
Regulation of properties of highly filled wood compounds by thermoplastic matrix modifying
Kasperovich, V. M.
Yatsenka, V. V.
Revyako, M. M.
Petrushenia, A. F.
заменители древесины
образцы ДПК
The current trend of production of new materials substitutes of wood to Republic of Belarus is connected with creation of hi-tech knowledge-intensive production of an environmentally friendly material – the thermoplastic wood and polymeric composite (WPC). The main problem of creation of high-filled DPK is that at introduction of wood fillers the complex of indicators of mechanical and rheological properties, in particular strength characteristics and the composition indicator of fluidity of fusion (IFF) considerably changes. In work DPK samples from chemically modified thermolayer and a wood flour with the raised physicomechanical and rheological characteristics accepted for processing of compositions by methods of molding under pressure and extrusion were received
2017-03-10T07:56:48Z
2017-03-10T07:56:48Z
2017-03-10T07:56:48Z
2013
Article
Regulation of properties of highly filled wood compounds by thermoplastic matrix modifying / V. M. Kasperovich [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 148-149.
https://elib.belstu.by/handle/123456789/11945
678.674
en
BSTU
oai:elib.belstu.by:123456789/143772020-10-21T07:36:49Zcom_123456789_20520com_123456789_118col_123456789_20522
Application of siliceous compounds in recycling of vulcanized wastes based on nitrile rubber
Myadelets, V. V.
Kasperovich, A. V.
Farafontov, V. N.
кремнийсодержащие соединения
перкасил
силан
характеристики эластомерных композиций
The possibility of application of siliceous compounds: Perkasil and silan, as modification agents is studied for support of rational using of rubbertechnical articles production wastes based on butadienenitrile rubber. The main technological and exploitation characteristics of elastomeric compositions filed by untreated and treated ground vulcanizate are researched. It’s shown that surface modification of ground vulcanizate based on BNKS-18 A by siliceous compounds allows get satisfactory properties of rudders even with the high contamination of modificated wastes in elastomeric composition.
2017-03-17T12:19:06Z
2017-03-17T12:19:06Z
2017-03-17T12:19:06Z
2013
Article
Myadelets, V. V. Application of siliceous compounds in recycling of vulcanized wastes based on nitrile rubber / V. V. Myadelets, A. V. Kasperovich, V. N. Farafontov // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 103106.
https://elib.belstu.by/handle/123456789/14377
678.046.9
en
BSTU
oai:elib.belstu.by:123456789/119152020-10-21T07:36:57Zcom_123456789_20520com_123456789_118col_123456789_20522
Method of analysis of particle sedimentation rate in aqueous media
Sazanovets, M. A.
Ignatenko, A. V.
водная среда
видеоинформация
управление фотографиями
гравиметрический метод
Adobe Photoshop CS3
This article deals with the analysis of particle sedimentation velocity in water media with application of video information and pictures management. Kinetics of particles sedimentation in model suspensions and in wastewater were studied by gravimetric method and also by method of video recording of sedimentation with digital photo camera and pictures processing in computer program Adobe Photoshop CS3. In the result of research it was found that analyses of histograms of brightness make it possible to determine particles sedimentation velocity in water media with less time and labor expenditures than in gravimetric method.
2017-03-10T07:56:39Z
2017-03-10T07:56:39Z
2017-03-10T07:56:39Z
2013
Article
Sazanovets, M. A. Method of analysis of particle sedimentation rate in aqueous media / M. A. Sazanovets, A. V. Ignatenko // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 40-42.
https://elib.belstu.by/handle/123456789/11915
541.18
en
BSTU
oai:elib.belstu.by:123456789/143562020-10-21T07:36:56Zcom_123456789_20520com_123456789_118col_123456789_20522
Protective properties of modified epoxy coatings
Zhuravleva, M. V.
Ivanova, N. P.
Zharskaya, T. A
Krut'ko, E. T.
эпоксидные смолы
электрохимический метод
физико-механический метод
коррозионные процессы
модифицированные эпоксидные покрытия
Article is devoted to the development and research of new film materials based on epoxy resins with improved properties. Evaluation of protective properties is determined by electrochemical and physico-mechanical methods of research that provides the most complete picture of the corrosion processes occurring under the paint film . These studies allowed to adjust the coating composition to the individual applications in order to achieve a high degree of protection of metal surfaces.
2017-03-17T12:18:29Z
2017-03-17T12:18:29Z
2017-03-17T12:18:29Z
2013
Article
Protective properties of modified epoxy coatings / M. V. Zhuravleva [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 26-31.
https://elib.belstu.by/handle/123456789/14356
667.633.2
en
BSTU
oai:elib.belstu.by:123456789/143712020-10-21T07:36:59Zcom_123456789_20520com_123456789_118col_123456789_20522
Component composition development of hair mask
Bondarenko, Zh. V.
Emello, G. G.
косметическая эмульсия
образцы эмульсии
маски волос
характеристики косметики
Cosmetic emulsion components on the basis of their functional identity analysis in the cosmetics composition have been selected. Emulsion samples with different component composition have been obtained by means of “hot/hot” disperse method. The main organoleptic and physicalchemical characteristics have been determined. The resulting regularities have been analyzed, the preferred composition has been selected. Hair mask sample has been prepared and tested. Organoleptic and physical and chemical characteristicsof the cosmetic were shown to meet the requirements of STB 1673-2006.
2017-03-17T12:18:55Z
2017-03-17T12:18:55Z
2017-03-17T12:18:55Z
2013
Article
Bondarenko, Zh. V. Component composition development of hair mask / Zh. V. Bondarenko, G. G. Emello // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 87-90.
https://elib.belstu.by/handle/123456789/14371
687.552.3
en
BSTU
oai:elib.belstu.by:123456789/144382020-10-21T07:36:50Zcom_123456789_20520com_123456789_118col_123456789_20522
Properties of elastomeric compositions with fluorinated additive
Polonik, V. D.
Prokopchuk, N. R.
Shashok, Zh. S.
свойства вулканизатов
фторированная добавка
свойства эластомерных композиций
The effect of the product of pyrolytic synthesis Forum on the properties of the elastomer compositions based on EPDM rubber is investigated. It is established that introduction of modifying agent promotes viscosity reduction, cuts time attainment of optimum cure and improves the technical properties of vulcanizates.
2017-03-17T12:23:38Z
2017-03-17T12:23:38Z
2017-03-17T12:23:38Z
2013
Article
Polonik, V. D. Properties of elastomeric compositions with fluorinated additive / V. D. Polonik, N. R. Prokopchuk, Zh. S. Shashok // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 129-131.
https://elib.belstu.by/handle/123456789/14438
678.074
en
BSTU
oai:elib.belstu.by:123456789/119362020-10-21T07:36:50Zcom_123456789_20520com_123456789_118col_123456789_20522
Infuence of processing conditions of polymethyl methacrylate on the optical and mechanical propeties of products
Karmanova, O. V
Scherbakova, M. S.
Borisovskaya, E. M.
Prokopchuk, N. R.
ПММА
оптические свойства
полиметил метакрилата
Study of the mechanical and optical properties of PMMA, including the addition of recycled materials, have been conducted. the possibility of using recycled materials in the manufacture of products made of PMMA was shown. Found that the optical properties deteriorate with the introduction of secondary PMMA over 10%.
2017-03-10T07:56:45Z
2017-03-10T07:56:45Z
2017-03-10T07:56:45Z
2013
Article
Infuence of processing conditions of polymethyl methacrylate on the optical and mechanical propeties of products / O. V. Karmanova [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 122-124.
https://elib.belstu.by/handle/123456789/11936
678.029.46
en
BSTU
oai:elib.belstu.by:123456789/119172020-10-21T07:36:57Zcom_123456789_20520com_123456789_118col_123456789_20522
Surface active and foaming properties of genapol lro specimen with polyvinylpyrrolidone
Emello, EG. G.
Bondarenko, Zh. V.
Firsova, L. D.
Ivinskaya, P. V.
«вода - ПАВ Genapol LRO»
«вода - поливинилпирролидон»
«вода - Genapol LRO - поливинилпирролидон»
пенообразующие свойства
поверхностные активные свойства
поливинилпирилроид
Surface-active properties of systems “water – surfactant Genapol LRO”, “water – polyvinylpyrrolidone”, “water – Genapol LRO – polyvinylpyrrolidone”, depending on the amount of components were studied. It was established that polyvinylpyrrolidone is a surface-inactive substance, and the surface activity of the preparation Genapol LRO is 32.9 (J · l)/(m2 · mol). Foaming capacity of water solutions of the SAS in the concentration 0.02–50.00 g / l was defined. Over the whole range of concentrations highly resistant foams were obtained. It was confirmed that the preparation Genapol LRO performs the functions of both frother and stabilizer. It was investigated the influence of polyvinylpyrrolidone on solutions to foam and them stabilization for the surfactant of 2.0 g / l. The quantity of polyvinylpyrrolidone, providing the production of hygienic detergent in accordance with the requirements of STB 16752006, was determined.
2017-03-10T07:56:39Z
2017-03-10T07:56:39Z
2017-03-10T07:56:39Z
2013
Article
Surface active and foaming properties of genapol lro specimen with polyvinylpyrrolidone / EG. G. Emello [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 50-53.
https://elib.belstu.by/handle/123456789/11917
544.77:661.185
en
BSTU
oai:elib.belstu.by:123456789/144532020-10-21T07:36:53Zcom_123456789_20520com_123456789_118col_123456789_20522
Influence of the constituent composition on antimicrobial and perfume properties of fir essential oils
Vladykina, D. S.
Lamotkin, S. A.
Litvinova, E. V.
Vyglazov, O. G.
эфирные масла
метод паровой дистилляции
метод газожидкостной хроматографии
эфирные масла пихты
The essential oils of 7 kinds of spruces by the method of steam distillation were obtained. The qualitative and quantitative composition of the received essential oils was studied by gas-liquid chromatography. Antimicrobial activity of essential oils on substances Staphilococcus aureusATSS 6538 P, Pseudomonas aeruginosaATSS 9027, Bacillus subtilisATSS 6633, Candida albicansATSS 885-653 was defined. Perfume tasting evaluation of the essential oils was made.
2017-03-17T12:23:40Z
2017-03-17T12:23:40Z
2017-03-17T12:23:40Z
2013
Article
Influence of the constituent composition on antimicrobial and perfume properties of fir essential oils / D. S. Vladykina [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 178-181.
https://elib.belstu.by/handle/123456789/14453
543.61:581.135.51:665.52:582.475
en
BSTU
oai:elib.belstu.by:123456789/144602020-10-21T07:36:55Zcom_123456789_20520com_123456789_118col_123456789_20522
Electronic absorption spectra of st. john's wort extracts
Kovalenko, N. A.
Supichenko, G. N.
Leontiev, V. N.
Stasevich, O. V.
коллекции Центрального ботанического сада
перфорированный зверобой
экстракты зверобоя Джона
In this study electronic absorption spectra of John's Wort extracts of different types from the collection of Central Botanical Garden of the Belarusian NAS have been investigated. It has been shown that the character of electronic absorption spectra significantly depends on the nature of herbal material, temperature, polarity of solvents and pH value of medium. The Hypericum perforatumwas found to be the most prospective home herbal material. The optimal conditions of hypericin extraction from John's Wort, including temperature mode and pH value have been established. On the basis of spectral researches it is shown that the greatest extent of hypericin extraction is reached at ethanol and acetone use.
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2013
Article
Electronic absorption spectra of st. john's wort extracts / N. A. Kovalenko [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 208-211.
https://elib.belstu.by/handle/123456789/14460
543.422.3:615.322
en
BSTU
oai:elib.belstu.by:123456789/143732020-10-21T07:36:59Zcom_123456789_20520com_123456789_118col_123456789_20522
Statistical process control
Zayats, N. I.
Khrol, Yu. N.
карты суммарной суммы
карты с границами предупреждения
типы контрольных карт
управление процессами
Statistical process control methods and possibility of their use to solve quality problems of the output products have been discussed in the article. Variability of the technological process and its effect on the output products quality have been characterized. Situations which claim interference in the technological process have been described. Different types of Shewhart control cards have been considered: simple control cards by variables and alternative attributes, cards with warning boundaries, cumulative sums cards, exponentially weighed moving averages cards. Besides univariate control cards, Hotteling multivariate control cards and cumulative sums cards which are used to control multi-parameter technological process are discussed in the article. Fields of application of different types of control cards are described.
2017-03-17T12:18:59Z
2017-03-17T12:18:59Z
2017-03-17T12:18:59Z
2013
Article
Zayats, N. I. Statistical process control / N. I. Zayats, Yu. N. Khrol // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 96-98.
https://elib.belstu.by/handle/123456789/14373
658.6
en
BSTU
oai:elib.belstu.by:123456789/144562020-10-21T07:36:54Zcom_123456789_20520com_123456789_118col_123456789_20522
Physiologic and biochemical properties of probioticaly valuable lactic acid bacteria allocated from gasterointestinal tract of chickens
Chernyavskaya, E. F.
Belyasova, N. A.
Prokulevich, V. A.
пробиотики
молочнокислые бактерии
биохимические свойства пробиотиков
физиологические свойства пробиотиков
желудочно-кишечный тракт цыплят
On the basis of the conducted researches physiological and biochemical properties of probioticaly valuable lactic acid bacteria allocated from a gastrointestinal tract (GIT) of chickens are defined and analysed. The allocated bacteria are checkedon compliance of their properties to the requirements imposed to probiotic substances. According to the resultsof the carried-out analysis lactic acid bacteria strains with the greatest probiotic potential are selected.
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2013
Article
Chernyavskaya, E. F. Physiologic and biochemical properties of probioticaly valuable lactic acid bacteria allocated from gasterointestinal tract of chickens / E. F. Chernyavskaya, N. A. Belyasova, V. A. Prokulevich // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 193-196.
https://elib.belstu.by/handle/123456789/14456
636.087.7
en
BSTU
oai:elib.belstu.by:123456789/143672020-10-21T07:36:58Zcom_123456789_20520com_123456789_118col_123456789_20522
Risk analysis of oil-processing objects
Radchenko, Yu. S.
нефтеперерабатывающие предприятия
нефтепереработка
Consistency of carrying out of risk analysis of oil-refining enterprises has been given in the article. The article deals with the possibilities of using existing methods for assessing the aftermath of emergency conditions at the installations of the oil-refining enterprises and methods for estimating the probability occurrence and development of emergency. Some arrangements are aimed at ensuring the required level of safety refining facilities.
2017-03-17T12:18:48Z
2017-03-17T12:18:48Z
2017-03-17T12:18:48Z
2013
Article
Radchenko, Yu. S. Risk analysis of oil-processing objects / Yu. S. Radchenko // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 66-68.
https://elib.belstu.by/handle/123456789/14367
614.83:665
en
BSTU
oai:elib.belstu.by:123456789/143632020-10-21T07:36:58Zcom_123456789_20520com_123456789_118col_123456789_20522
Utilization of fiber composite products
Kordikova, Е. I.
Spiglazov, A. V.
Chirkun, D. I.
Kuprash, Ye. A.
обработка стеклопластика
получение волокнистого компонента
композиционные материалы
процесс измельчения
The method for processing of fiberglass plastic is proposed for deriving of the fiber constituent, applied as reinforcing filler for producing secondary composite materials. It is proved by theory and experiments the influence of modes of shock-centrifugal mill to produce a fibrous component with the highest content of fibers with a length of more efficient. The obtained analytical regularities can be used to develop the design of the elements of the mill, as well as for the optimization of the grinding process.
2017-03-17T12:18:41Z
2017-03-17T12:18:41Z
2017-03-17T12:18:41Z
2013
Article
Utilization of fiber composite products / Е. I. Kordikova [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 57-59.
https://elib.belstu.by/handle/123456789/14363
678.023
en
BSTU
oai:elib.belstu.by:123456789/119352020-10-21T07:36:50Zcom_123456789_20520com_123456789_118col_123456789_20522
Research of properties changes and surface microstructure film binders on modifications mixture of fullerenes
Igumenova, T. I.
Chichvarin, А. V.
Ryaskin, D. Y.
Vishnevski, К. V.
модификация
смеси фюллеренов
Changes of properties and structure of styrene-acryl film-forming polymer are investigated at its modification by a mix of carbon fullerenes. The interrelation between change of a superficial tension of solutions of polymer and change of a roughness of a surface of the cured films at modification is found. Physic-mechanical properties of new composition of mastic for processing of a surface of metalwork are defined. Recommendations are developed and practical approbation of finished goods for sealing of seams of construction designs is carried out.
2017-03-10T07:56:45Z
2017-03-10T07:56:45Z
2017-03-10T07:56:45Z
2013
Article
Research of properties changes and surface microstructure film binders on modifications mixture of fullerenes / T. I. Igumenova [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 118-121.
https://elib.belstu.by/handle/123456789/11935
678.028
en
BSTU
oai:elib.belstu.by:123456789/119102020-10-21T07:36:56Zcom_123456789_20520com_123456789_118col_123456789_20522
Influence of polar solvents on the straight distillation of crude oil
Sharif, A. S.
Grushova, E. I.
добавки полярных органических растворителей
добавки
полярные растворители
It is offered to use for activation of oil raw materials of an additive of polar organic solvents. It is shown that for a preliminary estimate of activating action of additives it is possible to use results of the comparative analysis of properties of asphaltenes, allocated of the samples of oil not containing and containing an additive, before distillation.
2017-03-10T07:56:38Z
2017-03-10T07:56:38Z
2017-03-10T07:56:38Z
2013
Article
Sharif, A. S. Influence of polar solvents on the straight distillation of crude oil / A. S. Sharif, E. I. Grushova // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 19-21.
https://elib.belstu.by/handle/123456789/11910
665. 61. 033. 28
en
BSTU
oai:elib.belstu.by:123456789/143552020-10-21T07:36:56Zcom_123456789_20520com_123456789_118col_123456789_20522
Method for increasing adhesive properties in composite materials based on veneer and thermoplastics
Revyako, M. M.
Petrushenya, A. F.
Yatsenko, V. V.
композиционные материалы
термопластик
древесный шпон
The article discusses the creation of laminated composite materials based on wood veneer using polyolefin films as a binder. The problems of combining components that differ in nature are presented. Goals for creating composite materials are achieved by modifying the polymer binder. The adhesion properties of measuring the contact angle and adhesive strength, were assessed and defined by their dependence on the concentration of modifying agents
2017-03-17T12:18:27Z
2017-03-17T12:18:27Z
2017-03-17T12:18:27Z
2013
Article
Revyako, M. M. Method for increasing adhesive properties in composite materials based on veneer and thermoplastics / M. M. Revyako, A. F. Petrushenya, V. V. Yatsenko // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 22-25.
https://elib.belstu.by/handle/123456789/14355
678.7
en
BSTU
oai:elib.belstu.by:123456789/144492020-10-21T07:36:53Zcom_123456789_20520com_123456789_118col_123456789_20522
Application of new nitrogen-containing pitches for the manufacture of technical types of paper
Nikolaichik, I. V.
Zholnerovich, N. V.
Chernaya, N. V.
азотсодержащие смолы
бумага
виды бумаги
The article is devoted to studying of influence of nitrogen-containing pitches on properties of technical types of paper. Influence of conditions of receiving pitches on hydrophobic and physical mechanical properties of samples of paper from cellulose and waste paper is shown. It is established that efficiency of effect of studied pitches significantly depends on a look fibrous the semi-finished products, used in paper composition. Increase of efficiency of strengthening effect of studied nitrogen-containing pitches at reduction of a molar ratio carbamide : formaldehyde to 1.0 : 5.9 is shown.
2017-03-17T12:23:40Z
2017-03-17T12:23:40Z
2017-03-17T12:23:40Z
2013
Article
Nikolaichik, I. V. Application of new nitrogen-containing pitches for the manufacture of technical types of paper / I. V. Nikolaichik, N. V. Zholnerovich, N. V. Chernaya // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 164-166.
https://elib.belstu.by/handle/123456789/14449
547.914:676.2.05
en
BSTU
oai:elib.belstu.by:123456789/143582020-10-21T07:36:57Zcom_123456789_20520com_123456789_118col_123456789_20522
Waste rubber industries – perspective material to make new products
Dolinskaya, R. M.
Sviderskaya, T. D.
Shcherbina, Ye. I.
Prokopchuk, N. R.
Marusova, S. N.
Rusetski, D. V.
утилизация отходов
резиновая промышленность
дисперсия резиновой крошки
крошка фракции
резиновыеизделия
The article deals with the research of possibility ofutilization of rubber industry wastes – rubber crumb, in elastomeric compositions. Influence of size of crumb on properties of composition material is studied. It is in process shown that dispersion of rubber crumb has influence on properties of rubber products. It is established that for making of elastomeric composition material it is expedient to use the crumb of 0.5–1.0 mm fraction , as application of crumb of more shallow fraction increases the prime price of the received wares, and the use of large particles makes the results of physical mechanical parameters. worse.
2017-03-17T12:18:32Z
2017-03-17T12:18:32Z
2017-03-17T12:18:32Z
2013
Article
Waste rubber industries – perspective material to make new products / R. M. Dolinskaya [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 37-39.
https://elib.belstu.by/handle/123456789/14358
678.029.46
en
BSTU
oai:elib.belstu.by:123456789/143512020-10-21T07:36:58Zcom_123456789_20520com_123456789_118col_123456789_20522
Viscosimetric studies of water and water-salt solution of polyethylene glycol
Shulyak, I. V.
Grushova, E. I.
Paskova, A. N.
водно-солевые растворы
водные растворы
система ПЭГ - вода
ПЭГ - водно-солевые растворы
The complex analysis of a state of PEG macromolecules of various molecular weights in water and water-salt solutions is carried out. Temperature factors, the constants characterizing intermolecular interaction in these systems are defined. The intrinsic viscosity is defined with the use of the various linear extrapolation equations. Influence of temperature and electrolytes on thermodynamic properties in PEG – water and PEG – water-salt solution systems is shown.
2017-03-17T12:18:20Z
2017-03-17T12:18:20Z
2017-03-17T12:18:20Z
2013
Article
Shulyak, I. V. Viscosimetric studies of water and water-salt solution of polyethylene glycol / I. V. Shulyak, E. I. Grushova, A. N. Paskova // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 12-15.
https://elib.belstu.by/handle/123456789/14351
678.1:541.68
en
BSTU
oai:elib.belstu.by:123456789/119092020-10-21T07:36:56Zcom_123456789_20520com_123456789_118col_123456789_20522
Application of paraffin emulsion as apolar co-reagent during sylvinite flotation process
Karpenko, O. V.
Grushova, E. I.
Shuljak, I. V.
Paskova, A. N.
Bakhmutskaya, L. V.
Turko, M. R.
процесс флотации калийной руды
флотационный процесс
применение парафиновой эмульсии
The research is devoted to finding more affordable apolar reagent paraffinic base for their use in the process of potash ore flotation, as well as improve the form in which the reagent is introduced into the flotation process. Found that the introduction of paraffinic oil flotation system in the form of emulsions provides extraction of potassium chloride at a level comparable to the same period of the industrial process.
2017-03-10T07:56:38Z
2017-03-10T07:56:38Z
2017-03-10T07:56:38Z
2013
Article
Application of paraffin emulsion as apolar co-reagent during sylvinite flotation process / O. V. Karpenko [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 16-18.
https://elib.belstu.by/handle/123456789/11909
622.765
en
BSTU
oai:elib.belstu.by:123456789/144612020-10-21T07:36:55Zcom_123456789_20520com_123456789_118col_123456789_20522
Vitamins and plant saponina in production of functional margarines and spreads possessing antioxidant properties
Medvedev, D. A.
маргариновые продукты
спреды
витамины
растительная сапонина
антиоксидантные свойства
The composition of margarine products and spreads with the increased emulsion stability and prolonged expiration date is developed in the factory laboratory. A distinctive feature is the use of plant saponins as emulsifiers and ascorbic acid as an antioxidant water-soluble component. The use of these additional ingredients makes margarines and spreads the products of functional food. It is established that the use of saponins and vitamins with antioxidant properties increases the expiration date of the product. It was shown that the licorice saponins and ascorbic acid inhibit hydrolysis and lipid peroxidation (the speed of growth of acid number and concentration of malondialdehyde).
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2013
Article
Medvedev, D. A. Vitamins and plant saponina in production of functional margarines and spreads possessing antioxidant properties / D. A. Medvedev // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 212-214.
https://elib.belstu.by/handle/123456789/14461
637.28
en
BSTU
oai:elib.belstu.by:123456789/119252020-10-21T07:36:59Zcom_123456789_20520com_123456789_118col_123456789_20522
Synthesis of some flurophenyl 4-oxocyclopentane[d]isoxazolines and their dioxolane derivatives
Antonevich, I. P.
Nesterova, S. V.
фторфенил-4-оксоциклопентан
изоксазолин
диоксолан
производные диоксолана
A number of new fluorophenyl 4-oxocyclopentane[d]isoxazolines and their dioxolane derivatives has been synthesized. The obtained substances are of the interest as the perspective biologically active compounds as well as the intermediates in total synthesis of fluorinated prostaglandin analogues.
2017-03-10T07:56:42Z
2017-03-10T07:56:42Z
2017-03-10T07:56:42Z
2013
Article
Antonevich, I. P. Synthesis of some flurophenyl 4-oxocyclopentane[d]isoxazolines and their dioxolane derivatives / I. P. Antonevich, S. V. Nesterova // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 76-81.
https://elib.belstu.by/handle/123456789/11925
547.786.3 + 547.514.4
en
BSTU
oai:elib.belstu.by:123456789/144412020-10-21T07:36:51Zcom_123456789_20520com_123456789_118col_123456789_20522
Project of method developing of quality control of spruce essential oil by gas-liquid chromatography
Malakhovskaya, G. V.
Lamotkin, S. A.
Vladykina, D. S.
Popina, O. A.
хроматография
эфирные масла
контроль качества
Conditions of the chromatography analyses of essential oils providing the yield of all components with the contents over 0.01% were selected. Essential oils of 10 samples of Norway spruce growing in the same edaphic-climatic conditions of the park UE “Brovki” were obtained by hydrodistillation. Qualitative and quantitative analyses of the received essential oils were performed. More than 50 components composing the essential oil were identified. The obtained statistic data allowed to calculate standard deviation of repeatability, standard deviation of intermediate precision with a variable factor “time + operator”, expanded uncertainty of measurement results for the confidence level P = 0,95.
2017-03-17T12:23:38Z
2017-03-17T12:23:38Z
2017-03-17T12:23:38Z
2013
Article
Project of method developing of quality control of spruce essential oil by gas-liquid chromatography / G. V. Malakhovskaya [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 139-141.
https://elib.belstu.by/handle/123456789/14441
665.52:581.135.51:543.544.33:582.475
en
BSTU
oai:elib.belstu.by:123456789/119392020-10-21T07:36:51Zcom_123456789_20520com_123456789_118col_123456789_20522
Prospective production ways of new heat-resisting materials based on polyimides
Krut'ko, E. T.
Prokopchuk, N. R.
полимиды
способы новых теплоемкостей
Article is devoted to receiving and research of materials on the basis of industrially made different kind of polyimide, including chemical modifying by reactivity polyfunctional compoundes. Existence in macromolecules of polyamide acids reactive carboxyl, amide and amino groups o, capable to interact with multifunctional monomeric and oligomeric modifiers, gives the chance of receiving the polyimide materials possessing properties of sewed polymers. As a result, provides improvement of strength properties and thermal characteristics of new polymeric materials for practical aimes.
2017-03-10T07:56:46Z
2017-03-10T07:56:46Z
2017-03-10T07:56:46Z
2013
Article
Krut'ko, E. T. Prospective production ways of new heat-resisting materials based on polyimides / E. T. Krut'ko, N. R. Prokopchuk // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 132-135.
https://elib.belstu.by/handle/123456789/11939
667.633.2
en
BSTU
oai:elib.belstu.by:123456789/143722020-10-21T07:36:59Zcom_123456789_20520com_123456789_118col_123456789_20522
trans-Hydroxylation of cyclopent-5-ene[d]isoxazolines
Antonevich, I. P.
Nesterova, S. V.
синтезированные вещества
биологически активные соединения
The title reaction has been studied as a variant of the cyclopentane ring functionalization of cyclopent-5-ene[d]isoxazolines as the key intermediates in total synthesis of azaand oxo prostaglandin analogues by nitrileoxides approach. The oxidation, epoxides cleavage and hydrolysis of obtained monoesters and/or acylation lead with good yields to trans-5,6-dihydroxycyclopentanoisoxazolines or their acyl derivatives. The synthesized substances are the intermediates in total synthesis of prostaglandin analogues, as well as perspective biologically active compounds.
2017-03-17T12:18:57Z
2017-03-17T12:18:57Z
2017-03-17T12:18:57Z
2013
Article
Antonevich, I. P. trans-Hydroxylation of cyclopent-5-ene[d]isoxazolines / I. P. Antonevich, S. V. Nesterova // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 91-95.
https://elib.belstu.by/handle/123456789/14372
542.943.2 : 547.514.4 : 547.786.3
en
BSTU
oai:elib.belstu.by:123456789/119062020-10-21T07:36:55Zcom_123456789_20520com_123456789_118col_123456789_20522
Preparation and study of physicochemical properties of modified rosins and model compounds based on them
Prokopchuk, N. R.
Gorshcharik, N. D.
Kluyev, A. Yu.
Rozhkova, E. I.
Kozlov, N. G.
Skakovsky, E. D.
модифицированная канифоль
химические заводы Беларуси
Results of research of the modeling structures received with use of modified rosin are given in the article. It is shown that depending on the applied modifiers of rosin and conditions it is possible to make modeling structures with a wide range of physical-mechanical and operational properties. The use of modified rosin in model compositions opens up wide prospects for the development and production of new model compositions at the chemical plants of Belarus.
2017-03-10T07:56:37Z
2017-03-10T07:56:37Z
2017-03-10T07:56:37Z
2013
Article
Preparation and study of physicochemical properties of modified rosins and model compounds based on them / N. R. Prokopchuk [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 3-7.
https://elib.belstu.by/handle/123456789/11906
621.74.045
en
BSTU
oai:elib.belstu.by:123456789/119342020-10-21T07:36:50Zcom_123456789_20520com_123456789_118col_123456789_20522
Development of mathematical model of curing two-phase polymeric systems
Karmanova, O. V.
Molchanov, V. I.
Mozgalev, V. V.
Parshuta, D. O.
исследования кинетики
двухфазные эластомерные композиты
кинетическая модель
двухфазные полимерные системы
математическая модель
During research of kinetics of curing of two-phase elastomeric composites the new kinetic model, allowed to explain heterogeneity of the grid which was formed in this process of curing crosslink was developed. In numerical experiments it is shown that average extent of sewing together of all system increases more slowly, than when curing in lack of diffusion of vulcanizing substances, and the speed of curing and the general extent of sewing together of a composite as a whole decreases.
2017-03-10T07:56:44Z
2017-03-10T07:56:44Z
2017-03-10T07:56:44Z
2013
Article
Development of mathematical model of curing two-phase polymeric systems / O. V. Karmanova [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 114-117.
https://elib.belstu.by/handle/123456789/11934
678.028.2:51.001.57(045)
en
BSTU
oai:elib.belstu.by:123456789/144462020-10-21T07:36:52Zcom_123456789_20520com_123456789_118col_123456789_20522
Study and optimization of pulp paper composition to produce packaging paper
Kasperovich, Y. V.
Zholnerovich, N. V.
свойства бумаги
состав композиции целлюлозы
метод математического планирования
упаковочная бумага
состав целлюлозной бумаги
The paper deals with the study of paper pulp composition influence on properties of paper based on waste paper raw materials. Application of the method of mathematical planning and solution of optimization tasks helped to establish the optimum contents of a sizing agent and cationic starch in the paper pulp composition, comprising 0.109 и0.5% of a. d. f. respectively. It is shown that the degree of paper pulp beating should be 45°ShR in order to achieve the required values of breaking length 3700 m, tensile energy absorption 34.2 J/m?, bulk 2.39 sm?/g and elongation 1.6 mm.
2017-03-17T12:23:39Z
2017-03-17T12:23:39Z
2017-03-17T12:23:39Z
2013
Article
Kasperovich, Y. V. Study and optimization of pulp paper composition to produce packaging paper / Y. V. Kasperovich, N. V. Zholnerovich // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 154-157.
https://elib.belstu.by/handle/123456789/14446
676.038.22
en
BSTU
oai:elib.belstu.by:123456789/144322020-10-21T07:36:49Zcom_123456789_20520com_123456789_118col_123456789_20522
Properties of filled compositions based on emulsion pvc
Sedykh, V. A.
Vorotyagin, A. Yu.
Kuznetsova, E. S.
Uss, E. P.
изготовление детских игрушек
влияние мела
эмульсии ПВХ
Set influence of chalk on the technological and technical properties of plastisol and compounds of PVC emulsion used in the manufacture of children's toys. Studied rheology filled with chalk plastisol and compounds. We studied the stability filled with chalk plastisols. Given the elastic-strength properties filled with plasticized PVC.
2017-03-17T12:23:38Z
2017-03-17T12:23:38Z
2017-03-17T12:23:38Z
2013
Article
Properties of filled compositions based on emulsion pvc / V. A. Sedykh [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 107-109.
https://elib.belstu.by/handle/123456789/14432
678.029.46
en
BSTU
oai:elib.belstu.by:123456789/119132020-10-21T07:36:57Zcom_123456789_20520com_123456789_118col_123456789_20522
Modification of polyamide-6 by n, n'-bis-maleamidoacid
Zhuravleva, M. V.
Prokopchuk, N. R.
Krut'ko, E. T.
использование бис-амидокислоты
добавки
полиамид-6
n'-бис-малеамидоацид
Article is devoted to receiving and research of compositions on the basis of industrially made polyamide6 modified by N,N '-bis-maleamidoacid of metaphenylenediamine. Existence in macromolecules of polyamides reactive carboxyl, amide and amino groups, capable to interact with multifunctional monomeric and oligomeric modifiers, gives the chance of receiving the materials possessing properties of sewed polymers. As a result the use of bis-amidoacid as a modifying additive in the system of aliphatic polyamide-6 provides the improvement of strength properties and thermal characteristics of a polymeric material.
2017-03-10T07:56:39Z
2017-03-10T07:56:39Z
2017-03-10T07:56:39Z
2013
Article
Zhuravleva, M. V. Modification of polyamide-6 by n, n'-bis-maleamidoacid / M. V. Zhuravleva, N. R. Prokopchuk, E. T. Krut'ko // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 32-36.
https://elib.belstu.by/handle/123456789/11913
678.074
en
BSTU
oai:elib.belstu.by:123456789/143682020-10-21T07:36:58Zcom_123456789_20520com_123456789_118col_123456789_20522
Synthesis of some isoxazoline, isoxazole and pyrazole carboxylic acids as the precursors of new 1,2-diacyl-1-alkylhydrazines
Antonevich, I. P.
Katok, Ya. M.
карбоновые кислоты
высокоселективные инсектициды
A number of isoxazoline, isoxazole and pyrazole carboxylic acids or their esters has been synthesized via the 1,3-dipolar cycloaddition of corresponding nitrile oxides or diazomethane to unsaturated dipolarophiles. The obtained substances are of the interest as the precursors of new 1,2-diacyl-1-alkylhydrazines which are perspective as highly selective insecticides.
2017-03-17T12:18:49Z
2017-03-17T12:18:49Z
2017-03-17T12:18:49Z
2013
Article
Antonevich, I. P. Synthesis of some isoxazoline, isoxazole and pyrazole carboxylic acids as the precursors of new 1,2-diacyl-1-alkylhydrazines / I. P. Antonevich, Ya. M. Katok // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 69-75.
https://elib.belstu.by/handle/123456789/14368
547.786 + 577.175.24
en
BSTU
oai:elib.belstu.by:123456789/144372020-10-21T07:36:50Zcom_123456789_20520com_123456789_118col_123456789_20522
The influence of recipe ingredients of elastomeric composition on the elastic-deformation properties of tire
Shashok, Zh. S.
Kasperovich, A. V.
Prokopchuk, A. V.
Kayushnikov, S. N.
каучук
эластомерные композиции
упругодеформационные свойства шины
The results of researches of elastomeric compositions on the basis of the natural rubber, containing a Vulcuren VPKA-9188 are given in this paper. Thisingredient use as substitute of the accelerator of sulfuric curing of DFG. The addition of the componentallows to lower aniline allocation at rubber usage, to carry out vulcanization with high speed and practically without reversion. It is established that addition of various vulcanization systems to rubber mixes influences technical properties of vulcanizates. The parameters of the crack growth resistance to the repeated flexing differ in 1.1–1.4 times. Such distinction probably is connected with the nature and density of the cross-linking bonds which are forming in volume of elastomeric composition in the course of curing. Application of studied ingredient in serial elastomeric composition of tire rubbers demands correction of composition and dosage of vulcanizing system.
2017-03-17T12:23:38Z
2017-03-17T12:23:38Z
2017-03-17T12:23:38Z
2013
Article
The influence of recipe ingredients of elastomeric composition on the elastic-deformation properties of tire / Zh. S. Shashok [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 125-128.
https://elib.belstu.by/handle/123456789/14437
678.675
en
BSTU
oai:elib.belstu.by:123456789/144522020-10-21T07:36:54Zcom_123456789_20520com_123456789_118col_123456789_20522
The nitrate content in berries of low bush blueberry (vaccinium angustifoliumait.) of the harvest of the second year commercial fruiting
Gordey, D. V.
Morozov, O. V.
Tereshkina, N. V.
Gudinskaya, O. V.
нитраты в ягодах голубики
низкие кустарники
урожай
In the second year of commercial fruiting the nitrate content in berries of low bush blueberry was 13.5 mg/kg. As compared to 2011 (the first commercial harvest) it number decreased in 4.3 times. In the conditions of the same amount of applied mineral fertilizers the different content of nitrate in berries of two harvest years can be explain by change in regulations of feeding, manifestation of effect of “dilution” of nitrates in actively being formed with age biomass of cultivated plants and features of weather conditions. In 2012 crop year, the content of nitrate did not depend on the time of harvest, the average weight of fruit and plant genotypes. Storage of berries of a crop of 2011 within 12 months in a freezer at a temperature of minus 16 (+ / –2) °C resulted in a decrease in nitrate concentrations in 2.8 times of their initial quantity.
2017-03-17T12:23:40Z
2017-03-17T12:23:40Z
2017-03-17T12:23:40Z
2013
Article
The nitrate content in berries of low bush blueberry (vaccinium angustifoliumait.) of the harvest of the second year commercial fruiting / D. V.Gordey [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 174-177.
https://elib.belstu.by/handle/123456789/14452
630*232.322.4:634.739.1
en
BSTU
oai:elib.belstu.by:123456789/144472020-10-21T07:36:52Zcom_123456789_20520com_123456789_118col_123456789_20522
Paper properties depending on the synthetic fillers flow
Shcherbakova, T. O.
Zholnerovich, N. V.
Chernaya, N. V.
Muraveyko, P. V.
прочность бумаги
бумага
синтетические наполнители
свойства бумаги
It is shown that the replacement of natural filler (barium sulfate) with particle size of the synthetic 1.50?2.00 microns with a particle size 0.50?0.57 microns allows us to give the correct paper whiteness and breaking length but to maximize the strength of the paper sheet. Found that decreasing the size of the filler particles from 1.50?2.00 to 0.50?0.57 microns can help improve their retention in the structure of the paper through the course of the process of filling in heteroadagulation while the process of penitration, which has a positive effect on its printability.
2017-03-17T12:23:39Z
2017-03-17T12:23:39Z
2017-03-17T12:23:39Z
2013
Article
Paper properties depending on the synthetic fillers flow / T. O. Shcherbakova [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 158-160.
https://elib.belstu.by/handle/123456789/14447
676.22.017
en
BSTU
oai:elib.belstu.by:123456789/119422020-10-21T07:36:51Zcom_123456789_20520com_123456789_118col_123456789_20522
Synthesis and properties of interaction product of rosin and diethylenetriamine
Fleisher, V. L.
Andryukhova, M. V.
Makarova, D. S
канифоль
диэтилентриамин
технология бумаги и картона
Amides of rosin resin acids are a promising material for use in the technology of paper and cardboard in order to increase its strength characteristics. Therefore product of rosin resin acids interaction with diethylenetriamine arouses interest. The influence of temperature and duration of the process of interaction of rosin resin acids with diethylenetriamine on the acid number of the product are examined in this article. Melting point of the received rosin amides was defined. The thermal stability of the reaction product of abietic acid with diethylenetriamine was studied. It was proved that this product contains the appropriate functional groups using Irspectroscopy.
2017-03-10T07:56:47Z
2017-03-10T07:56:47Z
2017-03-10T07:56:47Z
2013
Article
Fleisher, V. L. Synthesis and properties of interaction product of rosin and diethylenetriamine / V. L. Fleisher, M. V. Andryukhova // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 142-144.
https://elib.belstu.by/handle/123456789/11942
542.9:547.462.3
en
BSTU
oai:elib.belstu.by:123456789/144502020-10-21T07:36:53Zcom_123456789_20520com_123456789_118col_123456789_20522
Effect of composition of fuel pellets on their quality parameters
Sychova, N. A.
Khmyzov, I. A.
Solovyeva, T. V.
древесные породы древесины
сосна
ольха
береза
состав топливных таблеток
The present researches are aimed at studying the influence of composite pellets on their quality measures. To obtain experimental samples of pellets, we used the main tree species of wood, that is pine, alder and birch. Found that the pellets produced from hardwood inferior in mechanical strength of the pellets obtained from pine. Technological solution to this problem was to establish the optimal composition of the fuel pellets and chemical activation of hardwoods. The highest strength pellets are achieved with the use of starch. The laboratory results were tested in industrial applications through the issuance of an experimental batch of fuel pellets.
2017-03-17T12:23:40Z
2017-03-17T12:23:40Z
2017-03-17T12:23:40Z
2013
Article
Sychova, N. A. Effect of composition of fuel pellets on their quality parameters / N. A. Sychova, I. A. Khmyzov, T. V. Solovyeva // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 167-169.
https://elib.belstu.by/handle/123456789/14450
674.815
en
BSTU
oai:elib.belstu.by:123456789/143622020-10-21T07:36:57Zcom_123456789_20520com_123456789_118col_123456789_20522
Winding of cylindrical products and curved bars of reinforced polyethylene terephtalate
Karpovich, O. I.
Narkevich, A. L.
Kuprash, Ye. A.
ПЭТ
набор цилиндрических изделий
армированный полиэтилен
The fundamentals are developed, regularities are analyzed and patterns are estimated of one-step process of winding cylindrical and curved products from recycled PET. Experimental samples of cylindrical and oval products are obtained. The method for estimation of parameters of the winding process by criteria impregnation and consolidation. The method developed can be used to determine the optimal mode of winding cylindrical and curved reinforced tape products based thermoplastics.
2017-03-17T12:18:39Z
2017-03-17T12:18:39Z
2017-03-17T12:18:39Z
2013
Article
Karpovich, O. I. Winding of cylindrical products and curved bars of reinforced polyethylene terephtalate / O. I. Karpovich, A. L. Narkevich, Ye. A. Kuprash // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 54-56.
https://elib.belstu.by/handle/123456789/14362
678.073
en
BSTU
oai:elib.belstu.by:123456789/144582020-10-21T07:36:55Zcom_123456789_20520com_123456789_118col_123456789_20522
Consumption of phosphates from medium by activated sludge bacteria under various conditions of aeration
Lemzikova, I. P.
Markevich, R. M.
изолят
инкубации бактерий
условия аэрации
расход фосфатов
активированные иловые бактерии
The ability to consume phosphates from the medium has been assessed for bacteria isolated from activated sludge. There was selected an isolate, which cells has the highest level of phosphorus accumulation. It is shown that the most efficient consumption of phosphates from the medium per biomass unit is reached while incubating bacteria alternately under aerobic conditions and the conditions without aeration followed by the aerobiosis. The effect ofthe duration of the incubation stage without aeration on phosphates consumption has been studied.
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2013
Article
Lemzikova, I. P. Consumption of phosphates from medium by activated sludge bacteria under various conditions of aeration / I. P. Lemzikova, R. M. Markevich // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 200-202.
https://elib.belstu.by/handle/123456789/14458
628.355
en
BSTU
oai:elib.belstu.by:123456789/144512020-10-21T07:36:53Zcom_123456789_20520com_123456789_118col_123456789_20522
Influence of the peat briquettes composition on their quality indicators
Aleksandrova, А. N.
Тimoshik, N. I.
Khmyzov, I. А.
Solovyeva, Т. V.
состав торфяного брикета
лиственные деревья
диаграмма Шеффе
The paper dwells upon investigations of establishing the influence of peat briquette composition containing deciduous tree (alder and birch) wood on its ash content, density and strength. The obtained experimental data allowed to construct the Scheffe diagram, graphically illustrating the effect of the composition on each parameter of peat briquette quality. The compromise task of establishing an optimal ratio of components (peat, alder and birch 64/26/10% respectively) in peat briquettes was solved.
2017-03-17T12:23:40Z
2017-03-17T12:23:40Z
2017-03-17T12:23:40Z
2013
Article
Influence of the peat briquettes composition on their quality indicators / А. N. Аleksandrova [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 170-173.
https://elib.belstu.by/handle/123456789/14451
662.641.033:662.638
en
BSTU
oai:elib.belstu.by:123456789/119402020-10-21T07:36:51Zcom_123456789_20520com_123456789_118col_123456789_20522
Comparative analysis of structures of essential oils of some kind of tree species abies
Lamotkin, S. А.
Klimchik, G. Ya.
Malakhovskaya, G. V.
виды деревьев abies
эфирное масло
виды пихты
Conditions of the chromatography analysis of essential oils providing an exit of all components with the contents over 0.01% are selected up. Essential oil from five kinds of the fir growing in identical climatic and soil environments is received by the method of hydrodistillation. The qualitative and quantitative analysis of essential oils is carried out. In the structure of essential oils 38 components are identified. The obtained data can be used for practical application of fir essential oils.
2017-03-10T07:56:46Z
2017-03-10T07:56:46Z
2017-03-10T07:56:46Z
2013
Article
Lamotkin, S. А. Comparative analysis of structures of essential oils of some kind of tree species abies / S. А. Lamotkin, G. Ya. Klimchik, G. V. Malakhovskaya // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 136-138.
https://elib.belstu.by/handle/123456789/11940
665.52:581.135.51:543.544:582.475
en
BSTU
oai:elib.belstu.by:123456789/143662020-10-21T07:36:58Zcom_123456789_20520com_123456789_118col_123456789_20522
Passive fillers for water activity measurement
Vetokhin, S. S.
Podorozhnyaya, I. V.
Nenartovich, I. V.
отщепленный лигнин
керамические пластины
каолин
отщепленный лигнин
водная активность
The paper is dedicated to passive fillers, which are the necessary substances for a method of water activity determination in liquid samples by mirror dew-point temperature measurement. A number of such fillers for water activity analyzer Roremeter RM-10 are tested. The comparative analyses of their features and standard cellit-powder’s characteristics is provided. The following fillers are recommended as the most effective replacers of cellit: carefully dried absorbent carbon, cleaved lignin, kaolin, silicagel, pounded red and fire brick, and ceramic plate pieces.
2017-03-17T12:18:46Z
2017-03-17T12:18:46Z
2017-03-17T12:18:46Z
2013
Article
Vetokhin, S. S. Passive fillers for water activity measurement / S. S. Vetokhin, I. V. Podorozhnyaya, I. V. Nenartovich // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 63-65.
https://elib.belstu.by/handle/123456789/14366
543.3:544.35
en
BSTU
oai:elib.belstu.by:123456789/144482020-10-21T07:36:53Zcom_123456789_20520com_123456789_118col_123456789_20522
Influence of conditions for obtaining styrene copolymers on paper properties
Zholnerovich, N. V.
Chernaya, N. V.
Kasperovich, Y. V.
Kaputsky, F. N.
Shiman, D. I.
свойства бумаги
стирольные сополимеры
армирующие добавки
The influence of the conditions for obtaining reinforcing additives based on copolymers of styrene and maleic anhydride on change of the physical and mechanical properties of paper is established. The obtained products are completely soluble in water and have an anionic character. Greater anion character has partially saponified sample. The results of thermogravimetric analysis showed that the greater resistance to thermo-chemical degradation has a saponified sample. In this case, activation energy is 177.2 kJ/mol.
2017-03-17T12:23:39Z
2017-03-17T12:23:39Z
2017-03-17T12:23:39Z
2013
Article
Influence of conditions for obtaining styrene copolymers on paper properties / N. V. Zholnerovich [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 161-163.
https://elib.belstu.by/handle/123456789/14448
676.038, 676.273.3
en
BSTU
oai:elib.belstu.by:123456789/144592020-10-21T07:36:55Zcom_123456789_20520com_123456789_118col_123456789_20522
Special properties of free-floating and immobililized active sludge biotic community
Markevich, R. M.
Grebentchikova, I. A.
Rodenko, A. V.
Vostrova, R. N.
количество биомассы ила
свойства биопласта
ил
The biotic community composition of free-floating and fiber-porous carrier immobililized active sludge from Ivatsevichi treatment plant aerotanks, functioning under nitri-denitrification conditions, has been studied. Differences in flock structure, species composition and proportion of main indicative groups of free-floating active sludge organisms for different technology lines have been revealed. About 50 species of organisms have been identified. The ability of the fiber-porous carrier to adsorb the considerable amount of sludge biomass has been shown.
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2013
Article
Special properties of free-floating and immobililized active sludge biotic community / R. M. Markevich [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 203-207.
https://elib.belstu.by/handle/123456789/14459
628.355
en
BSTU
oai:elib.belstu.by:123456789/119332020-10-21T07:36:49Zcom_123456789_20520com_123456789_118col_123456789_20522
Features of rubber crosslinking in the presence of composite vulcanization activators
Karmanova, O. V.
Shutilin, Y. F.
Pymenova, Y. A.
Shashok, Z. S.
модификация оксида цинка
особенности обработки резины
The features of curing polydienes by vulcanizing system based on composite curing activators was studied. Based on analysis of the investigating results of cure and elastic-strength properties rubbers was found that the modification of zinc oxide as a basis of the formation of actual curing agents increases of the active sites of vulcanization and as a consequence, increases the rate of vulcanization and improving physical and mechanical properties of rubbers.
2017-03-10T07:56:44Z
2017-03-10T07:56:44Z
2017-03-10T07:56:44Z
2013
Article
Features of rubber crosslinking in the presence of composite vulcanization activators / O. V. Karmanova [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 110-113.
https://elib.belstu.by/handle/123456789/11933
678.742.2
en
BSTU
oai:elib.belstu.by:123456789/144542020-10-21T07:36:54Zcom_123456789_20520com_123456789_118col_123456789_20522
Natural degradation ways of herbicides of sulfonylurea group
Leontiev, V. N.
Akhramovich, T. I.
Ignatovets, O. S.
Lazovskaya, O. I.
сельское хозяйство
борьба с сорняками
Currently in agriculture much attention is paid to development and use of low-cost and at the same time effective methods of fight against weeds. In this regard, widely purchased sulfonylurea herbicides. The paper presents the general characteristics, mechanism of action, degradation pathways (hydrolysis, photochemical transformation and microbial degradation) of metsulfuron-methyl and tribenuronmethyl. The key role of chromato-mass-spectrometry to establish the mechanisms of destruction these herbicides by soil microorganisms is shown.
2017-03-17T12:23:40Z
2017-03-17T12:23:40Z
2017-03-17T12:23:40Z
2013
Article
Natural degradation ways of herbicides of sulfonylurea group / V. N. Leontiev [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 182-188.
https://elib.belstu.by/handle/123456789/14454
573.6:579.66:632.954
en
BSTU
oai:elib.belstu.by:123456789/144572020-10-21T07:36:54Zcom_123456789_20520com_123456789_118col_123456789_20522
Application of cryoscopy for detection of milk adulteration by ammonia
Vetokhin, S. S.
Podorozhnyaya, I. V.
стерилизованное молоко
производство молока
буферные свойства молока
фальсификация молока аммиаком
The results of researches of freezing temperature and titratable acidity of milkforcibly adulterated by ammonia are given in the article. Samples of the sterilized milk are used for researches. To reconstruct the origin of the phenomena the conditions of high acidity milk production are considered in details. The process of natural souring of sterilized milk is analyzed. Buffer properties of milk are described. Much attention is paid to the description and discussion of occurring processesat introduction of additives of water solution of ammonia.
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2013
Article
Vetokhin, S. S. Application of cryoscopy for detection of milk adulteration by ammonia / S. S. Vetokhin, I. V. Podorozhnyaya // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 197-199.
https://elib.belstu.by/handle/123456789/14457
637.06
en
BSTU
oai:elib.belstu.by:123456789/119162020-10-21T07:36:57Zcom_123456789_20520com_123456789_118col_123456789_20522
Research of possible synthesis of alkyd-styrene resins in belarus
Vinglinskaya, К. I.
Prokopchuk, N. P.
Shutova, A. L.
алкидно-стирольные смолы
производство красок
The article covers possible methods of synthesis of alkyd-styrene resins, formulations and areas of application this film-formers in paint production. The article summarises the main regularities that can can help to get in the future alkyd-styrene resins of home production. Possibility of production alkydstyrene resins at the chemical companies Republic of Belarus opens wide prospects for creation quick and naturally drying paint materials which will reduce the dependence on imports for Belarusian companies, provide energy savings and correspondingly increase the competitive ability of products of companies by cheapening of coatings preparation processes.
2017-03-10T07:56:39Z
2017-03-10T07:56:39Z
2017-03-10T07:56:39Z
2013
Article
Vinglinskaya, К. I. Research of possible synthesis of alkyd-styrene resins in belarus / К. I. Vinglinskaya, N. P. Prokopchuk, A. L. Shutova // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 43-49.
https://elib.belstu.by/handle/123456789/11916
667.633.26
en
BSTU
oai:elib.belstu.by:123456789/144622020-10-21T07:36:55Zcom_123456789_20520com_123456789_118col_123456789_20522
Engineering of a recombinant fab antibody fragment against cortisol
Dormeshkin, D. O.
Leontiev, V. N.
Ivashkevich, I. G.
Gilep, A. A.
молекулярное клонирование генов
кортизол
праймеры
рекомбинантный белок
The paper dwells upon the molecular cloning of genes coding the structure of mouse immunoglobulins, which can specifically bind steroid hormone cortisol. For these purposes primers covering all families of genes, which code the structure ofimmunoglobulins G. Molecular-genetic constructions for effective expression of recombinant antibodies in cells of Escherichia coliwere constructed. Heterologous expression of Fab-fragments was performed. Recombinant protein has been isolated in homogenous state.
2017-03-17T12:23:42Z
2017-03-17T12:23:42Z
2017-03-17T12:23:42Z
2013
Article
Engineering of a recombinant fab antibody fragment against cortisol / D. O. Dormeshkin [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 215-217.
https://elib.belstu.by/handle/123456789/14462
577.322.24
en
BSTU
oai:elib.belstu.by:123456789/119462020-10-21T07:36:52Zcom_123456789_20520com_123456789_118col_123456789_20522
Strength enhancement of packaging paper using nitrogen compounds
Gordeyko, S. А.
Chernaya, N. V.
Zholnerovich, N. V.
Fleisher, V. L.
Drapeza, А. А.
Andryuhova, М. V.
Makarova, D. S.
азотсодержащие соединения
полимеры
упаковочная бумага
Nitrogen-containing compounds were synthesized for the first time in the department of chemical processing of wood. These polymers, which contain amino and amidogroups, different water solubility, regularity and linearity. The essence of obtaining nitrogen compounds studied based on the chemical interaction with rosin diethylenetriamine and adipic (fumaric) acid. Amino and amidogroups participate in the formation of additional strengthening ties. The tests of samples of paper containing his compositions containing compounds, have shown that the new synthesized polymers exhibit strengthening effect similar to the effect of import connections Maresin and Melapret.
2017-03-10T07:56:48Z
2017-03-10T07:56:48Z
2017-03-10T07:56:48Z
2013
Article
Strength enhancement of packaging paper using nitrogen compounds / S. А. Gordeyko [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 150-153.
https://elib.belstu.by/handle/123456789/11946
676.22.017:547.914
en
BSTU
oai:elib.belstu.by:123456789/119442020-10-21T07:36:52Zcom_123456789_20520com_123456789_118col_123456789_20522
Formaldehyde wastewater cleaning in woodworking industry
Dubina, А. V.
Маrtsul, V. N.
окислительные методы
конденсационные методы
Очистка сточных вод формальдегида
The paper represents the results of research the sorption, oxidation and condensation methods of neutralization of liquid waste formaldehyde woodworking companies. The paper presents data on the neutralization degree of liquid waste in terms of formaldehyde and chemical oxygen demand value.
2017-03-10T07:56:47Z
2017-03-10T07:56:47Z
2017-03-10T07:56:47Z
2013
Article
Dubina, А. V. Formaldehyde wastewater cleaning in woodworking industry / А. V. Dubina, V. N. Маrtsul // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 145-147.
https://elib.belstu.by/handle/123456789/11944
61.183.129
en
BSTU
oai:elib.belstu.by:123456789/143652020-10-21T07:36:58Zcom_123456789_20520com_123456789_118col_123456789_20522
Combining of fiberfill and thermoplastic polymers
Spiglazov, A. V.
Kordikova, Е. I.
Karpovich, O. I.
Kalinka, A. N.
стекловолокно
термопластичные полимеры
вторичные композитные материалы
The article deals with an efficient and economic way of combination of the fiber composition from fiberglass waste and thermoplastic polymers. As the mixer of components the disk-extruder is used. The effectiveness of the proposed solutions was investigated and proved experimentally. The secondary composite materials having higher values of physical mechanical properties and longer fibers in the composition in relation to the analogous materials are gained in the screw extruder.
2017-03-17T12:18:44Z
2017-03-17T12:18:44Z
2017-03-17T12:18:44Z
2013
Article
Combining of fiberfill and thermoplastic polymers / A. V. Spiglazov [et al.] // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 60-62.
https://elib.belstu.by/handle/123456789/14365
678.6
en
BSTU
oai:elib.belstu.by:123456789/144552020-10-21T07:36:54Zcom_123456789_20520com_123456789_118col_123456789_20522
Analysis of influence of microorganisms on heavy metals adsorption by aluminosilicate sorbents
Sazanovets, M. A.
Ignatenko, A. V.
очистка водных сред
сорбционные свойства
сорбция ионов
микроорганизмы
тяжелые металлы
The article is devoted to the problems of sorption purifying of the water environments polluted by heavy metals ions. The influence of microorganisms on sorption properties of aluminosilicate sorbents is examined. It was studied sorption of Fe 2 + , Cu 2 + ions with bacterial cell in the free state immobilized on a surface of aluminosilicate sorbents and also at formation of biofilms. It is shown that the presence of the immobilized microorganisms increases the limiting capacity of heavy metals sorption by aluminosilicate sorbent. The formation of biofilms on the surfaces of sorbent increases heavy metals resistance of microorganisms and their sorption efficiency in comparison with the aluminosilicate sorbent.
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2017-03-17T12:23:41Z
2013
Article
Sazanovets, M. A. Analysis of influence of microorganisms on heavy metals adsorption by aluminosilicate sorbents / M. A. Sazanovets, A. V. Ignatenko // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 189-192.
https://elib.belstu.by/handle/123456789/14455
628.112+574.582
en
BSTU
oai:elib.belstu.by:123456789/143702020-10-21T07:36:59Zcom_123456789_20520com_123456789_118col_123456789_20522
Synthesis and reductive cleavage of 3-(2-flurophenyl) and 3-(4-flurophenyl)-cyclopent-5-en[d]isoxazolines by raney nickel in trifluroacetic acid
Antonevich, I. P.
Katok, Ya. M.
Nesterova, S. V.
синтезированные соединения
синтез
3-Fluoro arylcycloopent-5-en[d]isoxazolines have been obtained via the 1,3-dipolar cycloaddition of cyclopentadiene to aromatic nitrile oxides. The reductive cleavage of these isoxazolines by Raney nickel in trifluoroacetic acid led to corresponding acylcyclopentenes along with acylcyclopentanes. The synthesized compounds are the precursors of new prostanoids as well as the analogues of cyclic ?-triketones with fluorinated acyl side chain.
2017-03-17T12:18:53Z
2017-03-17T12:18:53Z
2017-03-17T12:18:53Z
2013
Article
Antonevich, I. P. Synthesis and reductive cleavage of 3-(2-flurophenyl) and 3-(4-flurophenyl)-cyclopent-5-en[d]isoxazolines by raney nickel in trifluroacetic acid / I. P. Antonevich,Ya. M. Katok, S. V. Nesterova // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 82-86.
https://elib.belstu.by/handle/123456789/14370
547.514.4 + 547.786.3
en
BSTU
oai:elib.belstu.by:123456789/143502020-10-21T07:36:56Zcom_123456789_20520com_123456789_118col_123456789_20522
Modification of oil sludge by highly dispersed carbonaceous additive
Shrubok, A. O.
Grushova, E. I.
Pasko, T. N.
модификации смол
высокоуглеродистые добавки
процесс окисления битума
The effect of modification of tar by highly carbonaceous additives on the rate of the oxidation process and the quality of oxidized bitumen has been studied. The dependences of the softening temperature of bitumen from the oxidation time have beenobtained. Penetration, penetration index of oxidized bitumen modified with highly carbonaceous additives tar fractions have been determined. The relaxation characteristics of oxidized bitumen: dependences of the relaxation time and the width of the temperature range of the duration of the process of oxidation have been obtained. It has been established that the rate of the process of obtaining oxidized bitumen increases with the number entered modifier by reducing the induction period.
2017-03-17T12:18:19Z
2017-03-17T12:18:19Z
2017-03-17T12:18:19Z
2013
Article
Shrubok, A. O. Modification of oil sludge by highly dispersed carbonaceous additive / A. O. Shrubok, E. I. Grushova, T. N. Pasko // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 4. – P. 8-11.
https://elib.belstu.by/handle/123456789/14350
665.637.8
en
BSTU