Materials Literature
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In recent years, bamboo fiber obtained by a steam explosion method has shown great performance as reinforcement in polymer based composites. In this study, steam exploded bamboo (SEB) fiber was used as the reinforcing phase in cross ply and quasi isotropic SEB/polylactic acid (PLA) laminates with different stacking se…
A cruciform specimen with multiple fibers is used to evaluate the fiber/matrix interfacial tensile strength. The model composite contains thick fibers for the precise detection of the debonding initiation location. By arranging two fibers the influence of the adjoining fiber on a debonding behavior can be estimated. T…
Powder coatings have been around and used in the industrial market space since the 1960s. They were first patented in Germany in 1966 and then in the US in 1969. The idea of powder coatings was to create a coating that eliminated the use of solvents and/or hazardous chemicals that require disposal offering the sprayer…
The results of experimental investigations of resonance vibration frequencies and mode for constant thickness centrally-secured disks from different material are presented. The investigations are carried out using the method of holographic interferometry.The table of resonance vibration mode was done. The effects of s…
Objetivo: avaliar a resposta inflamatoria serica e tecidual, alem da morfometria do colageno nas telas de alta densidade de polipropileno e de baixa densidade de polipropileno + poliglactina e polipropileno + titanio, nos periodos precoce e tardio de pos-operatorio. Metodo: trinta ratos machos Wistar, foram alocados a…
There was examined the process of destruction of the cylindrical shell in the area of dent loaded by internal pressure in the article. It was made a comparison of the stresses and straines of shells either with or without a dent under the stress of destructive pressure. The solution was made on basis of the finite-ele…
Over the past thirty years, thermoset powder coatings have emerged as a preferred finishing choice for protection and beautification of fabricated metal goods. Original equipment manufacturers (OEMs) have discovered the excellent barrier properties provided by powders, while realizing significant environmental benefit…
In this study, the characteristics of halloysite subjected to silane coupling treatment as a reinforcing agent are investigated. Halloysite is one of the natural substances that is currently recognized as having a nanotubular structure. Halloysite nanotubes are 50 nm in diameter, 0.5-1 μm in length and 15 nm of inner…
Хімічним модифікуванням новолачної феноло-формальдегідної смоли фурфурил-гліцидним етером синтезовано сполуку, у структурі якої фрагменти фурфурилгліцидного етеру, вільні фенольні та гідроксильні групи. Показано можливість використання синтезованого олігомеру як активного додатка при структуруванні діанової епоксидної…
Questions of increase of efficiency of the conversion gas-turbine engine (GTD) with a supply of water and pair in a flowing part are considered. The analysis of various options of GTU with a supply of water and pair is carried out to a flowing part. On the basis of the received GTD mathematical model, taking into acco…
Сформульовано математичну модель тепломасоперенесення та деформування капілярно-пористих матеріалів під час сушіння. У межах об’єктно-орієнтованого підходу розроблено алгоритмічне та програмне забезпечення для чисельної реалізації отриманої моделі. In the article is formulated a mathematical model of heat and mass tra…
The technological and operational properties of press-materials based on novolak composition modified jointly by epoxydianic resin and polyvinylpyrrolidone depending upon filler nature and pressing conditions have been determined. The reactivity of obtained press-powders has been investigated depending upon filler typ…
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Розглянуто хімічне та фотохімічне окиснення нітроген діоксидом молекулярного азоту до NO у присутності озону. Показано, що озон безпосередньо з молекулярним азотом не взаємодіє. Встановлено, що при підвищених концентраціях окисників при введенні озону в реагуючу суміш,що містить NO2,при некогерентному опроміненні спос…
This paper presents semi-empirical expressions for predicting the ballistic performance of three-layered thermoplastic laminates made up of polycarbonate (PC) and polymethyl methacrylate (PMMA) in closed forms, and also to verify the predictions by a series of ballistic impact tests. In the analysis, a normal impact o…
Наведено алгоритм порівневого розбиття моделі каркаса кузова автобуса методом суперелементів. Розглянуто вплив обшивки каркаса кузова для розрахунку і оцінки його напружено-деформованого стану під час перекидання. The level of laying out for bodyframe of buses is presented by the finite superelement method (FSEM). he…
LOCALIZATION OF ZINC BINDING SITES IN NUCLEI TO BE USED AS PROLIFERATION MARKER FOR NATURALLY OCCURRING MESENCHYMAL TUMOURS
111 p. ; ill. ; 30 cm%%%%Bien que les aciers inoxydables soient resistants a la corrosion, des phenomenes de degradation peuvent etre mis en evidence dans certaines applications. Afin de limiter au maximum la deterioration de ces materiaux a haute temperature ou dans certains milieux agressifs, il est necessaire de mi…
Liquid crystal polymer fiber reinforced plastics is applied to golf shaft. The vibration test of cantilever is carried out to reveal the differece of damping performance between CFRP and LCP-FRP golf shaft. From the result of this vibration test, LCP fiber has high damping properties. Next the paper presents effect of…
In this study, bamboo fiber reinforced composites were prepared by using VaRTM (Vacuum assisted Resin Transfer Molding) method. Several chemical treatments for bamboo fibers were applied to improve the interfacial adhesion between fiber and resin. Bamboo fiber surface was modified by chemical processing; namely alkali…