Увійти

Готові списки джерел за темами / Forming mixture / Статті в журналах

Статті в журналах з теми "Forming mixture"

Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Forming mixture.

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся з топ-50 статей у журналах для дослідження на тему "Forming mixture".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Переглядайте статті в журналах для різних дисциплін та оформлюйте правильно вашу бібліографію.

1

Cernat, Alexandru, Constantin Pana, and Niculae Negurescu. "Aspects of in-Cylinder Mixture Formation Study for a Diesel Engine Fuelled with LPG by Diesel-Gas Method." Applied Mechanics and Materials 809-810 (November 2015): 1043–48. http://dx.doi.org/10.4028/www.scientific.net/amm.809-810.1043.

Повний текст джерела

Анотація:

The Liquid Petroleum Gas can be use for diesel engine fuelling with significant result in term of pollutant emissions improvement, with important reduction of nitrous oxides and smoke for a LPG dual fuelled diesel engine. Beside this the LPG fuelling affects the combustion process inside the cylinder and also the mixture forming. High degree of homogeneity of the air-LPG mixtures will accelerate the in-cylinder mixture forming between air-LPG and diesel fuel jets, since the LPG-air mixture combustion starts. The paper presents the results of a zero-dimensional, one-zone thermodynamic model developed by authors for diesel fuel jets vaporization and combustion at dual fuelling. The model shows the diesel fuel jet characteristic, the break-up period, the mass flow of vaporized substance on the particle surface, drops vaporization time, air-fuel mixture forming speed, drops combustion time and flame position, showing a significant influence of LPG cycle dose on their characteristic parameters. The drops vaporization and combustion duration decrease for dual fuelling and the flame radius increases. Thus, based on the experimental data, an evaluation model for mixture forming was developed for an automotive diesel engine fuelled with LPG and diesel fuel by diesel-gas method.

Стилі APA, Harvard, Vancouver, ISO та ін.

2

Vasková, I., M. Hrubovčáková, and M. Conev. "Influence of additives in core-forming mixture." Archives of Metallurgy and Materials 62, no. 1 (March 1, 2017): 335–38. http://dx.doi.org/10.1515/amm-2017-0050.

Повний текст джерела

Анотація:

Abstract In recent years, ingredients, also known as additives, which appreciably affect the quality of the casting surface, come to the fore. Additives - lower the temperature at which SiO2 (major component of silica sand) begins to soften and create a melt on the surface of the grains, increase the reactivity and decrease the temperature of a transition to tridimite and cristobalit. These passages support the increase of volume of subsurface sand stress and the tension for the formation of burrs and other casting defects on the surface of the core or the mold. Nowadays, as a great emphasis is put on the quality of the casts, it is therefore necessary to pay attention to these additives, which can effectively reduce the labor intensity in the production of castings and ensure a quality surface of castings.

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Wang, Xiushan, Hengyu Zhou, Xingxing Hu, Senjie Shen, and Bowen Dong. "Investigation of the Performance of Ceramic Fiber Modified Asphalt Mixture." Advances in Civil Engineering 2021 (February 11, 2021): 1–10. http://dx.doi.org/10.1155/2021/8833468.

Повний текст джерела

Анотація:

Ceramic fiber (CF) is a novel thermally resistant material with the potential to improve the high-temperature performance of asphalt mixture. In this study, asphalt mixtures with 0%, 0.1%, 0.2%, 0.3%, 0.4%, and 0.5% CFs were prepared. The Marshall test, wheel tracking test, Marshall immersion test, freeze-thaw splitting test, and low-temperature bending test were conducted to evaluate the performance of the CF-modified asphalt mixture. The morphologies of these asphalt mixtures were observed using scanning electron microscopy to analyze the modification mechanism. The results showed that the CFs could improve the mechanical properties, high-temperature stability, moisture susceptibility, and low-temperature cracking resistance of asphalt mixture, with the optimum CF content being 0.4%. Further microscopic analysis showed that the CFs improved the performances of asphalt mixture through forming three-dimensional network structure, asphalt absorption, bridging cracks, and pulling-out effect.

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Kang, Ai Hong, Qin Zhang, and Ping Li. "Research on the Influences of the Molding Processes of TOR Asphalt Rubber Mixtures upon the Pavement Performance." Advanced Materials Research 535-537 (June 2012): 1819–24. http://dx.doi.org/10.4028/www.scientific.net/amr.535-537.1819.

Повний текст джерела

Анотація:

It’s a chemical method that adding TOR into asphalt rubber to be TOR asphalt rubber mixture. In this study, 70# basic asphalt from Nanjing Jinling Company and 60 mesh waste rubber powder from Jiangyan Honglei Company were chosen for the SMA13 grading and SUP13 grading by the best preparation technology. The high temperature stability, anti-cracking performance and water stability of TOR asphalt rubber mixture were studied and the influence of dry and wet molding process on road performance of TOR asphalt rubber mixture was compared. The results show that both the dynamic stability and the low-temperature cracking performance of wet forming specimens are better than the dry process. The water stability of wet molding process is also slightly better than the dry process. And expansion rate tests were carried out on asphalt mixtures prepared by dry and wet forming processes on continuous gradation and discontinuous gradation to validate the applicability of discontinuous gradation to asphalt rubber.

Стилі APA, Harvard, Vancouver, ISO та ін.

5

Ma, Liguo, Jinlong Yang, Lei Zhao, and Yong Huang. "Gelcasting of a rutile mixture applied to extrusion forming." Journal of the European Ceramic Society 22, no. 13 (December 2002): 2291–96. http://dx.doi.org/10.1016/s0955-2219(02)00005-5.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

6

Akhmetov, A. B., D. M. Zhiyembayeva, A. V. D’yakov, V. I. Yablonskii, and A. N. Zolin. "New slag-forming mixture for ladle treatment of steel." Steel in Translation 47, no. 8 (August 2017): 554–56. http://dx.doi.org/10.3103/s0967091217080022.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Magazù, S., and F. Migliardo. "Fragility of Bioprotectant Glass-Forming Systems in Extremophiles." Journal of Atomic, Molecular, and Optical Physics 2009 (June 4, 2009): 1–9. http://dx.doi.org/10.1155/2009/638063.

Повний текст джерела

Анотація:

A central issue in the adaptation of proteins and enzymes to extreme conditions is the conservation of their functional state, which is characterized by a well-balanced compromise of stability and flexibility. In this review work an overview of elastic neutron scattering (ENS) findings on a class of bioprotectant glass-forming systems, such as trehalose and its homologous (maltose and sucrose) water mixtures, is presented as a function of temperature and concentration. ENS, in fact, allows to determine some remarkable quantities in order to characterize the correlation among dynamical properties, the flexibility and fragility of biomolecules. The experimental results have pointed out a dynamical transition, which shows a crossover in molecular fluctuations between harmonic and anharmonic dynamical regimes. The ENS findings allow to characterize both the trehalose rigidity and flexibility, which are strictly connected to its superior bioprotective effectiveness. In this frame the lowest flexibility and fragility character of trehalose/H2O mixture with respect to maltose and sucrose/H2O mixtures indicate a better attitude to encapsulate biostructures in more rigid and temperature insensitive structures in approaching the glass transition.

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Жулай, Владимир Алексеевич, Юрий Николаевич Спасибухов, and Алексей Николаевич Щиенко. "ECONOMIC JUSTIFICATION OF FORMING MACHINES SETS FOR ASPHALT-CONCRETE WORKS IN ROAD CONSTRUCTION." Housing and utilities infrastructure, no. 1(20) (March 14, 2022): 99–105. http://dx.doi.org/10.36622/vstu.2022.81.12.010.

Повний текст джерела

Анотація:

В статье рассмотрены вопросы, возникающие на этапе укладки асфальтобетонных смесей при строительстве автомобильной дороги. Приведены примеры организации и графика работы комплекта машин при укладке асфальтобетонной смеси на реальном объекте. Проведен анализ соотношения производительностей основных и вспомогательных машин и последствий от изменения их оптимального согласования. Предложены меры для обеспечения эффективной работы комплекта машин для укладки асфальтобетонной смеси. Сформулированы условия формирования комплекта машин для укладки асфальтобетонной смеси подрядной организации в современных экономических условиях. Их особенностью является необходимость включения в комплект машин, находящихся на балансе организации, даже если они не оптимальны по своим технико-экономическим характеристикам. The article deals with the issues that arise at the stage of laying asphalt concrete mixtures while constructing a highway. We describe examples of organization and work schedule of a set of machines when laying asphalt concrete mixture at a real facility. We carried out the analysis of the productivity ratio of the main and auxiliary machines and determined the consequences of changing their optimal balance. We offer some measures to ensure the normal operation of a set of machines for laying asphalt concrete mixture. As well we formulate the conditions for the formation of machines sets for laying asphalt concrete mixture by a contractor in modern economic conditions. The key feature of these conditions is the need to include into the set of machines those ones that are on the balance sheet of the contractor, even if they are not optimal in terms of their technical and economic characteristics.

Стилі APA, Harvard, Vancouver, ISO та ін.

9

XIA, J. H., P. J. WANG, and C. S. LIU. "GRANULAR SPECIES SEGREGATION IN TILTED COMPARTMENTALIZED CONTAINER." International Journal of Modern Physics B 25, no. 28 (November 10, 2011): 3805–14. http://dx.doi.org/10.1142/s0217979211059036.

Повний текст джерела

Анотація:

The two-dimensional, soft-sphere molecular dynamics simulations have been performed to study the granular segregation behaviors in a binary granular mixture in tilted compartmentalized container under vertical vibration. It is found that there exist mixed state, left segregated state and right segregated state, which depend on the grain properties such as size ratio and density ratio as well as shaking properties. The particles with large density favor moving to right and the particles with large diameter prefer moving to left, so binary granular mixtures with large density ratio prefer forming right segregation state and the binary mixtures with large diameter favor forming left segregation state. The tilted compartmentalized container can be regarded as a container with a sawtooth base, which leads to stratified flows and thus forming horizontal segregation state under vertical vibration. The tilted bed plays a key role in forming segregation states, whereas the central wall enhances the segregation behaviors.

Стилі APA, Harvard, Vancouver, ISO та ін.

10

Worku, Alemayehu, Tamás Tóth, Szilvia Orosz, Hedvig Fébel, László Kacsala, Balázs Húth, Richárd Hoffmann, Haruna Gado Yakubu, George Bazar, and Róbert Tóthi. "Aroma Profile, Microbial and Chemical Quality of Ensiled Green Forages Mixtures of Winter Cereals and Italian Ryegrass." Agriculture 11, no. 6 (May 31, 2021): 512. http://dx.doi.org/10.3390/agriculture11060512.

Повний текст джерела

Анотація:

The objective of this study was to evaluate the aroma profile, microbial and chemical quality of winter cereals (triticale, oats, barley and wheat) and Italian ryegrass (Lolium multiflorum Lam., IRG) plus winter cereal mixture silages detected with an electronic nose. Four commercial mixtures (mixture A (40% of two cultivars of winter triticale + 30% of two cultivars of winter oats + 20% of winter barley + 10% of winter wheat), mixture B (50% of two cultivars of winter triticale + 40% of winter barley + 10% of winter wheat), mixture C (55% of three types of Italian ryegrass + 45% of two cultivars of winter oat), mixture D (40% of three types of Italian ryegrass + 30% of two cultivars of winter oat + 15% of two cultivars of winter triticale + 10% of winter barley + 5% of winter wheat)) were harvested, wilted and ensiled in laboratory-scale silos (n = 80) without additives. Both the principal component analysis (PCA) score plot for aroma profile and linear discriminant analysis (LDA) classification revealed that mixture D had different aroma profile than other mixture silages. The difference was caused by the presence of high ethanol and LA in mixture D. Ethyl esters such as ethyl 3-methyl pentanoate, 2-methylpropanal, ethyl acetate, isoamyl acetate and ethyl-3-methylthiopropanoate were found at different retention indices in mixture D silage. The low LA and higher mold and yeast count in mixture C silage caused off odour due to the presence of 3-methylbutanoic acid, a simple alcohol with unpleasant camphor-like odor. At the end of 90 days fermentation winter cereal mixture silages (mixture A and B) had similar aroma pattern, and mixture C was also similar to winter cereal silages. However, mixture D had different aromatic pattern than other ensiled mixtures. Mixture C had higher (p < 0.05) mold and yeast (Log10 CFU (colony forming unit)/g) counts compared to mixture B. Mixture B and C had higher acetic acid (AA) content than mixture A and D. The lactic acid (LA) content was higher for mixture B than mixture C. In general, the electronic nose (EN) results revealed that the Italian ryegrass and winter cereal mixtures (mixture D) had better aroma profile as compared to winter cereal mixtures (mixture A and B). However, the cereal mixtures (mixture A and B) had better aroma quality than mixture C silage. Otherwise, the EN technology is suitable in finding off odor compounds of ensiled forages.

Стилі APA, Harvard, Vancouver, ISO та ін.

11

Dan, Olena, and Larysa Trofimova. "A Study of The Properties of Forming Mixtures Containing Polystyrene Wastes." Journal of Casting & Materials Engineering 5, no. 2 (June 9, 2021): 14–19. http://dx.doi.org/10.7494/jcme.2021.5.2.14.

Повний текст джерела

Анотація:

Expanded polystyrene is widely used as a material for packaging, in modern construction as a heat and sound insulation layer, in thermal insulation systems for buildings, as well as tanks and pipelines. It is additionally used in foundry engineering for the production of models which are gasified during the production of castings from ferrous and non-ferrous alloys under the contact with liquid metal. The use of expanded polystyrene products is associated with waste generation, both in production and in consumption. About 40–50 kg/person of polystyrene waste is generated per year. The peculiarity of polymeric wastes is their resistance to aggressive environments. They do not rot and the destruction processes in natural conditions proceed rather slowly, with the formation of harmful substances that poison the environment. Therefore, the problem of the processing of waste from polymeric materials is of great importance, not only from the standpoint of environmental protection, but also due to the fact that in conditions of a shortage of polymer raw materials, this waste becomes a powerful raw material resource. This article describes the prospects for recycling expanded polystyrene wastes in foundry engineering. In this work, the properties of molding and core sands containing a combined binder, consisting of a solution of expanded polystyrene wastes in turpentine and clay were investigated, and their main characteristics (weight during stretching and crumbling) were determined. Molding and core mixtures, which contain only a binder in the form of a solution of expanded polystyrene in turpentine, have a crude strength of not more than 0.01 MPa. The introduction of a mixture of clay in the amount of 2–3% allows a crude strength of the mixture of up to 0.05 MPa to be obtained. After drying, the investigated mixtures containing a solution of expanded polystyrene wastes and clay have a tensile strength of up to 2.1 MPa. Mixtures into which a solution of polystyrene wastes and clay was introduced have an insignificant gas capacity and satisfactory gas permeability.

Стилі APA, Harvard, Vancouver, ISO та ін.

12

KOVAR, Zdenek, Celestyn SCHOLZ, Stanislav BEROUN, Milan NYDRLE, Hynek DROZDA, Josef BLAZEK, and Miroslav SVOBODA. "Hydrogen piston engines: R&D, experiences." Combustion Engines 125, no. 2 (May 1, 2006): 28–36. http://dx.doi.org/10.19206/ce-117350.

Повний текст джерела

Анотація:

Results of experimental works on hydrogen testing engines are presented in the paper: mixture forming, burning of air-hydrogen mixtures with different air/fuel ratio, NOx production, power parameters. The R&D works were realized on a single cylinder test engine (both natural aspirated and supercharged) and on a turbocharged six cylinder test engine as well.

Стилі APA, Harvard, Vancouver, ISO та ін.

13

Vdovin, K. N., A. A. Ryakhov, K. G. Pivovarova, and V. V. Tochilkin. "Features of determining the melting temperature of slag-forming mixtures for continuous casting of steel." NOVYE OGNEUPORY (NEW REFRACTORIES), no. 4 (April 30, 2019): 51–56. http://dx.doi.org/10.17073/1683-4518-2019-4-51-56.

Повний текст джерела

Анотація:

A method for determining the melting temperature of the slag-forming mixture on a high-temperature microscope is described and its accuracy indicators are given. The main parameters affecting the results of determining the melting temperature of slag mixtures using the DSC method, and rational conditions for conducting experiments aimed at determining the liquefaction, melting and spreading temperatures of slag are given. Ill. 3. Ref. 27. Tab. 1.

Стилі APA, Harvard, Vancouver, ISO та ін.

14

Fu, Zhong, and Galen J. Suppes. "Group contribution modeling of viscosity during urethane reaction." Journal of Polymer Engineering 35, no. 1 (January 1, 2015): 11–20. http://dx.doi.org/10.1515/polyeng-2014-0006.

Повний текст джерела

Анотація:

Abstract Based on experimental viscosity data collected from single material and binary system mixtures, a group contribution method was introduced to estimate viscosities of a range of polyol oligomers and urethane polymers at temperatures from 25 to 150°C. Use of mixture rules then extends the estimation method to multi-component reacting systems. Mixture viscosity data were used to determine the Gibbs free energy (G) in the Grundberg-Nissan equation which can be used to estimate mixture viscosities with correction for some non-idealities. The resulting model is able to accurately predict mixture viscosities based on binary interaction. The goal of this work is to estimate the viscosities of urethane-forming reactions; accurate viscosity information is critical as an intermediate step to predict how successful a foam formulation would be and to ultimately estimate the final physical properties of the foam.

Стилі APA, Harvard, Vancouver, ISO та ін.

15

Kim, Dahye, Soeun Jang, and Il Won Kim. "Eutectic Formation of Naproxen with Some Dicarboxylic Acids." Pharmaceutics 13, no. 12 (December 4, 2021): 2081. http://dx.doi.org/10.3390/pharmaceutics13122081.

Повний текст джерела

Анотація:

Eutectic formation with additives is one of the established methods to improve the dissolution behaviors of active pharmaceutic ingredients (APIs). The improvement is mainly due to the increase in the surface area for dissolution, which originates from the finely divided micro-domains generated through the phase separation of the miscible liquid components upon solidification. The present study is to identify eutectic-forming additives for naproxen (NPX), a class II API of the biopharmaceutical classification system. A particular aim was to develop a eutectic mixture with NPX at least over 20 wt%, a minimum to be practical for oral delivery. Screening based on the proximity of the solubility parameter values identified dicarboxylic acids (succinic acid, glutaric acid, and suberic acid) as desirable additives for NPX. Binary melting diagrams were constructed to confirm the eutectic compositions, and the eutectic mixture with suberic acid (NPX 55 wt%) was further investigated. The dissolution (at pH 5.0) of the melt crystallized eutectics was enhanced compared to the simple physical mixture of the same compositions and neat NPX, which was attributed to the microscopically observed lamellar structures. The current study should support the systematic investigations of API eutectic mixtures by selecting appropriate eutectic-forming additives.

Стилі APA, Harvard, Vancouver, ISO та ін.

16

Takagi, Y., and K. Hoshikawa. "Brillouin scattering of glass-forming KCN:x mixture solutions within 0.58." Journal of Non-Crystalline Solids 352, no. 42-49 (November 2006): 4625–29. http://dx.doi.org/10.1016/j.jnoncrysol.2006.05.030.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

17

Chiu, S. Y., H. W. Huang, K. C. Liang, T. H. Huang, K. P. Liu, J. H. Tsai, and W. S. Lour. "GaN hydrogen sensor with Pd-SiO2 mixture forming sensing nanoparticles." Electronics Letters 45, no. 4 (2009): 231. http://dx.doi.org/10.1049/el:20092158.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

18

Khakimov, B. B., N. Q. Rajabov, Z. Sh Sharipov, S. T. Kalandarova, E. M. G’aniboyeva, and O. A. Kulmamatov. "Analysis of methods of forming diesel and bioethanol fuel mixture." IOP Conference Series: Earth and Environmental Science 868, no. 1 (October 1, 2021): 012022. http://dx.doi.org/10.1088/1755-1315/868/1/012022.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

19

Goltsman, B. M., L. A. Yatsenko, and Elena A. Yatsenko. "Processes of the Foaming Mixture’ Components Interaction during the Foam Glass Synthesis." Materials Science Forum 992 (May 2020): 271–76. http://dx.doi.org/10.4028/www.scientific.net/msf.992.271.

Повний текст джерела

Анотація:

The prospects for the use of foam glass in construction were described. The modern compositions of foaming mixtures for foam glass synthesis were considered. Compositions for studying the influence of the foaming mixture components on the formation of foam glass porous structure were developed, their internal structure and properties were studied. The role of each component of the mixture on its foaming was revealed. Glycerol is a pore-forming agent, which decomposes and produces foaming gases. Waterglass is a stabilizing agent reducing glycerol combustion process. Recommendations on the application of the described patterns in the foam glass synthesis were given.

Стилі APA, Harvard, Vancouver, ISO та ін.

20

Markovic, Jordan, Milomer Blagojevic, Ivica Kostic, Tanja Vasic, Snezana Andjelkovic, Mirjana Petrovic, and Dragoslav Djokic. "Protein fractions of intercropped pea and oat for ruminant nutrition." Biotehnologija u stocarstvu 33, no. 2 (2017): 243–49. http://dx.doi.org/10.2298/bah1702243m.

Повний текст джерела

Анотація:

The quantification of the main crude protein (CP) fractions during the growing period of pea and oat mixtures may be used to optimize the forage management. The determination of protein fraction could improve balancing rations for ruminants. The first factor (A) is ratio of germinated seed in mixtures. The pea and oat were tested at two different mixture rates: A1 ? 50% pea + 50% oat and A2 ? 75% pea + 25% oat. The second factor (B) is a cutting time in three stages of growth: B1 ? a cutting of biomass at the start of flowering pea (10% of flowering), B2 ? a cutting of biomass at forming the first pods on 2/3 plants of pea, and B3 ? cutting of biomass at forming green seeds in 2/3 pods. Stage of growth and pea-oat ratio in mixtures are significantly related to the change in the quality and chemical composition of biomass. The highest level of crude protein was obtained in pea at flowering stage (184.85 g kg-1 dry matter (DM)). The high level of easily soluble protein and non-protein nitrogen compounds (over 50%) represent specific characteristics of the mixture. Unavailable fraction PC increased with plant maturation from 75.65 to 95.05 g kg-1 of CP.

Стилі APA, Harvard, Vancouver, ISO та ін.

21

Borić, Andrej, Alena Kalendová, Michal Urbanek, and Tomaž Pepelnjak. "Characterisation of Polyamide (PA)12 Nanocomposites with Montmorillonite (MMT) Filler Clay Used for the Incremental Forming of Sheets." Polymers 11, no. 8 (July 28, 2019): 1248. http://dx.doi.org/10.3390/polym11081248.

Повний текст джерела

Анотація:

In this paper, the preparation and characterisation of polymer materials suitable for single point incremental forming (SPIF) technology were performed. Three different kinds of mixtures were selected: a mixture of neat polyamide 12 (PA12), a nanocomposite with PA12 matrix and 1% clay (Cloisite 93A), and a nanocomposite with PA12 matrix and 3% clay (Cloisite 93A). Materials were produced using a melt intercalation method followed by compression moulding. According to the needs of SPIF technology, morphological and mechanical properties were investigated in the obtained mixtures. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) were used to characterize morphological properties. It was determined that the most desired obtained exfoliated structure of clay in the polymer matrix was achieved. Static tensile testing and dynamic mechanical analysis as well as the determination of glass transition temperature and crystallinity of all analysed materials were used to obtain mechanical and thermal properties of the mixtures. The results obtained for each mixture were compared with respect to the content of clay. The content of clay (Cloisite 93A) showed a strong influence on the properties of the obtained materials. The presence of clay (Cloisite 93A) affected the increase of tensile strength and Young’s modulus, while its influence on the attained elongation was not unique.

Стилі APA, Harvard, Vancouver, ISO та ін.

22

H., Arjun, and Pinaki Chaudhuri. "Glass forming liquids in a quenched random potential." Soft Matter 16, no. 14 (2020): 3574–85. http://dx.doi.org/10.1039/c9sm01729a.

Повний текст джерела

Анотація:

A study of the emergence of glassy dynamics in a model two-dimensional colloidal binary mixture, via the interplay of the intrinsic density correlations with a quenched disorder in the form an externally imposed spatially random potential.

Стилі APA, Harvard, Vancouver, ISO та ін.

23

Ceylan, A., E. Suvaci, and Hasan Mandal. "Utilization of a Phosphate Ester as a Dispersant for SiAlON Based Ceramics." Materials Science Forum 554 (August 2007): 71–77. http://dx.doi.org/10.4028/www.scientific.net/msf.554.71.

Повний текст джерела

Анотація:

Aqueous dispersions of SiAlON forming powders (Si3N4, AlN and Y2O3) were obtained. Dispersibility of powders was found to be improved by addition of sodium tripolyphosphate. Stable aqueous suspensions of SiAlON forming powders were prepared by using a phosphate ester, sodium tripolyphosphate (STPP, Na5P3O10). Effect of the STPP on rheological properties of the powder mixture was investigated by zeta potential measurements, sedimentation and milling studies. It has been shown that addition of the STPP to the aqueous SiAlON forming powder mixture improves the dispersion behavior significantly. These results suggest that STPP can be utilized as a dispersant in such ceramic systems.

Стилі APA, Harvard, Vancouver, ISO та ін.

24

Liu, Xuan, Xingfu Wang, Yongli Si, and Fusheng Han. "Glass-Forming Ability and Thermal Properties of Al70Fe12.5V12.5X5(X = Zr, Nb, Ni) Amorphous Alloys via Minor Alloying Additions." Nanomaterials 11, no. 2 (February 15, 2021): 488. http://dx.doi.org/10.3390/nano11020488.

Повний текст джерела

Анотація:

The Al70Fe12.5V12.5Ni5, Al70Fe12.5V12.5Zr5 and Al70Fe12.5V12.5Nb5 alloys were prepared via mechanical alloying. The influence of Zr, Nb or Ni addition on the glass-forming ability of Al-Fe-V amorphous alloys have been investigated. The structure of Al70Fe12.5V12.5Ni5 was amorphous and Al70Fe12.5V12.5Zr5 was not completely amorphous by transmission electron microscopy, selected area electron diffraction and differential scanning calorimetry. Different criteria were used to evaluate the influence of the addition of alloy elements on the Glass-forming ability. The Al70Fe12.5V12.5Ni5 amorphous alloys exhibits higher glass-forming ability and activation energies of crystallization. Comparison of the effective atomic size ratio and mixture enthalpy on the glass-forming ability of these amorphous alloys demonstrates that the effective atomic size ratio value becomes more significant than the values of mixture enthalpy.

Стилі APA, Harvard, Vancouver, ISO та ін.

25

Kukartsev, Viktor A., Vladislav V. Kukartsev, and Vadim S. Tynchenko. "An Experience of a Liquid Glass Mixture Using for AlpHaset Process in Russia." Materials Science Forum 946 (February 2019): 690–95. http://dx.doi.org/10.4028/www.scientific.net/msf.946.690.

Повний текст джерела

Анотація:

The features of a technology application AlpHaset process in Russia are considered, as well as the requirements imposed on the used materials, especially to forming sand, the reasons, which lead to searching for the technology, eliminating defects of this process, and the capability of using resins and hardeners of the Russian fabricator. The question about the opportunity of substitution of resin for liquid glass for this process was elaborated. The experience of AlpHaset technology process was learned, with the usage of a liquid glass, the extent of a regeneration of such a mixture at the factories of Russia was also studied. Laboratory studies were done and recipe of the mixture was created for AlpHaset process, where a resin is completely replaced with a liquid glass. At the same time, the work on receiving a reclaim from an aged dump of liquid glass mixture, which could serve as a substitute of fresh sand in a compounding for AlpHaset process, was completed. As the result, there was created and embedded a recipe of a mixture, where the reclaim (which is completely replacing fresh forming sand), received from aged dumps of traditional liquid glass mixture for process CO2, was used. The compounding of forming a mixture began to look as follows: a reclaim of liquid glass mix, a reclaim from the line, a liquid glass, and hardener.

Стилі APA, Harvard, Vancouver, ISO та ін.

26

Guzzo-Pernell, Nancy, John M. Lawlor, Geoffrey W. Tregear, and Jim Haralambidis. "Triplex Formation by an Oligonucleotide Containing the Novel Modified Nucleoside 2′-Deoxy-N4-phenylcarbamoylcytidine." Australian Journal of Chemistry 51, no. 11 (1998): 965. http://dx.doi.org/10.1071/c98062.

Повний текст джерела

Анотація:

2′-Deoxy-N4-phenylcarbamoylcytidine (Pc) was designed for triplex recognition of the cytosine{guanine base pair at physiological pH values to assist in the development of triplex-forming oligomers. Thermal denaturation of a triplex mixture in which the third strand incorporated Pc as a central nucleoside showed that, at pH 6·1, Pc binds selectively—though weakly—to the target cytosine—guanine and also to guanine—cytosine; but the gel mobilities of the same mixtures indicate the possibility of specificity for the target cytosine-guanine base pair at pH values higher than 6·1. The result may provide leads useful in the development of improved triplex-forming oligomers.

Стилі APA, Harvard, Vancouver, ISO та ін.

27

Booker, William H., and Brett C. Eaton. "Stabilising large grains in self-forming steep channels." Earth Surface Dynamics 8, no. 1 (January 28, 2020): 51–67. http://dx.doi.org/10.5194/esurf-8-51-2020.

Повний текст джерела

Анотація:

Abstract. It is understood that the interaction between sediment supply and discharge drives first-order behaviour of alluvial deposits. The influence of the grain size distribution over the mobility and resultant evolution is, however, unclear. Four experiments were conducted in a scaled physical model for two grain size distributions, analogous to a one-dimensional self-formed alluvial fan. We demonstrate the unsuitability of the median grain size as a predictor of deposit behaviour at flows when the material is not equally mobile. The results instead suggest, during conditions of unequal mobility, that the largest grains control the transport efficiency of the overall sediment mixture, and thus also the morphodynamics of the deposit and its tendency to store or evacuate material. Deposits appear to show a dependence upon the rate of material supply more strongly when the likelihood of its motion is less equally distributed (i.e. under partial transport conditions). If the coarse fraction (e.g. greater than 84th percentile) is instead mobile due to increased discharge or because of their relative size, transport rates will increase and the behaviour of the mixtures converge to a common state, with morphology influenced by the material's mobility.

Стилі APA, Harvard, Vancouver, ISO та ін.

28

Зиннатуллин, Назиф, Nazif Zinnatullin, Булат Зиганшин, Bulat Ziganshin, Иршад Нафиков, Irshad Nafikov, Максим Лушнов, Maksim Lushnov, Гульнара Зиннатуллина, and Gul'nara Zinnatullina. "INJECTION MIXTURE OF SOLID, LOOSE MATERIALS." Vestnik of Kazan State Agrarian University 12, no. 3 (January 11, 2018): 68–71. http://dx.doi.org/10.12737/article_5a1d96936b0656.58609817.

Повний текст джерела

Анотація:

The injection pumps are used for stirring (mixing) of solid loose materials in gas and liquid media. An antilock brake device – spreader is used to unload the suction zone of the injector. The technological parameters of the process are defined: the limiting diameter of the arch of forming holes, the parameters of spreader, the speed of waving and entrainment, the criterion for estimating the homogeneity, the inhomogeneity coefficient, the coefficient of variation, the minimum admissible weight of sample.

Стилі APA, Harvard, Vancouver, ISO та ін.

29

Movilla-Quesada, Diana, Angel Vega-Zamanillo, Miguel Angel Calzada-Pe´rez, and Daniel Castro-Fresno. "EXPERIMENTAL STUDY OF BITUMINOUS MASTIC BEHAVIOUR USING DIFFERENT FILLERS BASED ON THE UCL METHOD." Journal of Civil Engineering and Management 19, no. 2 (April 18, 2013): 149–57. http://dx.doi.org/10.3846/13923730.2012.734848.

Повний текст джерела

Анотація:

This research demonstrates that the use of suitable amounts of calcium hydroxide as an additive in asphalt mixtures can improve the aggregate-bitumen adhesion, forming a bituminous mixture which is more resistant to traffic loads and the action of water. The analysis was performed using the UCL method and the Cantabrian Test, taking as a case study three types of filler with different natures, mixed with 4.5% bitumen. The results are presented as state curves, which show clear differences between the three fillers, demonstrating that the hydroxide suffers small wear losses in concentrations close to 1.3%, indicating a significant reduction in the risk of plastic deformation, and an improvement in the mixture durability and/or adhesiveness.

Стилі APA, Harvard, Vancouver, ISO та ін.

30

Perera, Donna N. "Spatially heterogeneous dynamics in a two-dimensional glass-forming binary mixture." Journal of Physics: Condensed Matter 10, no. 45 (November 16, 1998): 10115–34. http://dx.doi.org/10.1088/0953-8984/10/45/002.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

31

Winter, D., and J. Horbach. "Nonlinear active micro-rheology in a glass-forming soft-sphere mixture." Journal of Chemical Physics 138, no. 12 (March 28, 2013): 12A512. http://dx.doi.org/10.1063/1.4770335.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

32

Flenner, Elijah, and Grzegorz Szamel. "Anisotropic spatially heterogeneous dynamics in a model glass-forming binary mixture." Journal of Physics: Condensed Matter 19, no. 20 (April 25, 2007): 205125. http://dx.doi.org/10.1088/0953-8984/19/20/205125.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

33

STAVRIC, S., T. M. GLEESON, B. BLANCHFIELD, and H. PIVNICK. "Competitive Exclusion of Salmonella from Newly Hatched Chicks by Mixtures of Pure Bacterial Cultures Isolated from Fecal and Cecal Contents of Adult Birds." Journal of Food Protection 48, no. 9 (September 1, 1985): 778–82. http://dx.doi.org/10.4315/0362-028x-48.9.778.

Повний текст джерела

Анотація:

Oral administration of defined mixtures of bacterial isolates from fecal and cecal contents of adult chickens protected young chicks against infection with Salmonella. One-day-old chicks were treated with mixtures containing 50, 40, 25 and 10 bacterial isolates and challenged 2 d later with 104, 105 and 106 colony-forming units of nalidixic acid-resistant Salmonella typhimurium. The chicks were examined for infection 6 d after challenge. The mixture of 50 bacterial cultures gave protection comparable to that obtained with fecal or cecal cultures of unknown bacterial composition. Less protection was evident with mixtures containing fewer cultures.

Стилі APA, Harvard, Vancouver, ISO та ін.

34

Boyette, C. Douglas, and Robert E. Hoagland. "Biological Control of Hemp sesbania (Sesbania exaltata) and Sicklepod (Senna obtusifolia) in Soybean with Anthracnose Pathogen Mixtures." Weed Technology 24, no. 4 (December 2010): 551–56. http://dx.doi.org/10.1614/wt-08-154.1.

Повний текст джерела

Анотація:

In greenhouse and field experiments conducted over 3 yr, tank mixtures of spores of the fungiColletotrichum truncatumandColletotrichum gloeosporioides, formulated in unrefined corn oil and Silwet L-77 surfactant, were evaluated as a mycoherbicide mixture for simultaneous control of hemp sesbania and sicklepod, respectively. In greenhouse tests, 100% mortality and dry weight reduction of hemp sesbania occurred 6 d after treatment (DAT), whereas 15 d were required to achieve 100% mortality and dry weight reduction of sicklepod. In field experiments conducted in narrow-row (51-cm) soybean test plots, a single application of the fungal mixture formulated as described controlled hemp sesbania and sicklepod 94% and 88%, respectively, 28 DAT. Neither fungus, applied as aqueous conidial suspensions, provided control of their respective weed hosts. These results indicate that tank mixtures of these anthracnose-forming pathogens can effectively control hemp sesbania and sicklepod with a single application.

Стилі APA, Harvard, Vancouver, ISO та ін.

35

Min, Sun, Yufeng Bi, Mulian Zheng, Sai Chen, and Jingjing Li. "Evaluation of a Cold-Mixed High-Performance Polyurethane Mixture." Advances in Materials Science and Engineering 2019 (November 7, 2019): 1–12. http://dx.doi.org/10.1155/2019/1507971.

Повний текст джерела

Анотація:

The energy consumption and greenhouse gas emission of asphalt pavement have become a very serious global problem. The high-temperature stability and durability of polyurethane (PU) are very good. It is studied as an alternative binder for asphalt recently. However, the strength-forming mechanism and the mixture structure of the PU mixture are different from the asphalt mixture. This work explored the design and performance evaluation of the PU mixture. The PU content of mixtures was determined by the creep slope (K), tensile strength ratios (TSR), immersion Cantabro loss (ICL), and the volume of air voids (VV) to ensure better water stability. The high- and low-temperature stability, water stability, dynamic mechanical property, and sustainability of the PU mixture were evaluated and compared with those of the stone matrix asphalt mixture (SMA). The test results showed that the dynamic stability and bending strain of the PU mixture were about 7.5 and 2.3 times of SMA. The adhesion level of PU and the basalt aggregate was one level greater than the limestone, and basalt aggregates were proposed to use in the PU mixture to improve water stability. Although the initial TSR and ICL of PU mixture were lower, the long-term values were higher; the PUM had better long-term water damage resistance. The dynamic modulus and phase angles (φ) of the PU mixture were much higher. The energy consumption and CO2 emission of the PU mixture were lower than those of SMA. Therefore, the cold-mixed PU mixture is a sustainable material with excellent performance and can be used as a substitute for asphalt mixture.

Стилі APA, Harvard, Vancouver, ISO та ін.

36

Litsin, K. V., and D. M. Utyamishev. "An automated system development to control the device for supplying slag-forming mixture into mould of CCM." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 77, no. 10 (October 12, 2021): 1046–52. http://dx.doi.org/10.32339/0135-5910-2021-10-1046-1052.

Повний текст джерела

Анотація:

The mechanism of feeding slag-forming mixture (SFM) with a pneumatic drive has a number of disadvantages associated, in particular, with the uneven supply of the mixture into mould. To eliminate the drawbacks, mixture feeding device with an electric drive was designed to eliminate them. In order to ensure control of the SFM feeding process, an automated system has been developed that provides real-time information on the technological process of feeding the mixture into the mould of continuous casting machine, including speed of rotation of screw drive motors and movement of carriage, the level of the mixture in the bunkers and its consumption, temperature of the metal and slag. A software and hardware complex (SCADA-system) has been developed, which makes it possible to analyze the components of the mixture in the “online” mode and take into account the effect of changes in the supply of each of them on its composition. The dependence of the mixture consumption rate on the casting rate has been established, which can be displayed on the screen in the current mode. Application of the SCADA-system made it possible to control the developed SFM feeder both in manual and automatic modes. It was shown that the implementation of the developed automated SFM feeding device in the steelmaking production of Ural Steel, JSC will secure decreasing the SFM consumption by 2.8% and decreasing downtime by 5% due to increasing efficiency of fault detection with a total implementation cost of 200 thous. rubles.

Стилі APA, Harvard, Vancouver, ISO та ін.

37

MAHDAVI, M., and N. MAHBOUBI. "MUON ATOM DYNAMICS IN DEUTERIUM–HELIUM MIXTURE." International Journal of Modern Physics E 18, no. 03 (March 2009): 721–27. http://dx.doi.org/10.1142/s0218301309012732.

Повний текст джерела

Анотація:

The effect of muonic molecules complex [Formula: see text] forming with different spin states (J = 0, 1) in various decay channels on the cycling rate, the effective sticking coefficient, and the neutron yield per muon stopped in mixture was studied. It was shown that the error of the relative neutron yield is decreased in the optimum physical condition of the deuterium in the mixture by considering the effect of various decay channels of the muonic molecule complex.

Стилі APA, Harvard, Vancouver, ISO та ін.

38

Jing, Guan. "Analysis of Influence of Fine Aggregate on Void Ratio of Asphalt Mixture." Applied Mechanics and Materials 587-589 (July 2014): 1079–83. http://dx.doi.org/10.4028/www.scientific.net/amm.587-589.1079.

Повний текст джерела

Анотація:

Using molding with different fine aggregate, gradation, asphalt, aggregate forming and forming method, and calculate the sample porosity. The test results show that: The basalt coarse-fine aggregate molding, specimen void ratio was larger, are beyond the regulatory requirements; basalt coarse aggregate molding and limestone fine aggregate molding, specimen porosity is small, can meet the requirements of specification range. The main reason is that the basalt thin bulk density is big, and its not easy compaction.

Стилі APA, Harvard, Vancouver, ISO та ін.

39

McDonough, Carrie A., Chastity Ward, Qing Hu, Samuel Vance, Christopher P. Higgins, and Jamie C. DeWitt. "Immunotoxicity of an Electrochemically Fluorinated Aqueous Film-Forming Foam." Toxicological Sciences 178, no. 1 (September 8, 2020): 104–14. http://dx.doi.org/10.1093/toxsci/kfaa138.

Повний текст джерела

Анотація:

Abstract Aqueous film-forming foams (AFFFs) are complex per- and polyfluoroalkyl substance (PFAS)-containing mixtures used extensively as fire suppressants. AFFF-impacted groundwater and surface water have contaminated drinking water with PFASs in many communities, raising concerns about health effects from drinking water exposures. As individual PFASs have been identified as immune hazards, the immunotoxicity of complex PFAS mixtures is also a concern. Adult female and male C57BL/6 mice were given a commercial AFFF formulation for 10 days via gavage; administered dose was based on combined content of perfluorooctanoate (PFOA) and perfluorooctane sulfonate (PFOS) measured in the formulation (0, 1.88, 3.75, 7.5, or 10 mg PFOS+PFOA/kg body weight). A PFOA positive control of 7.5 mg/kg body weight was also given. Compared with the 0 mg/kg group, the following changes were noted: Body weights of males exposed to 7.5 and 10 mg PFOS+PFOA/kg were reduced by 15%, on average; female body weights did not differ. Average relative liver weights were increased 50%–200% in males and 37.5%–193% in females and liver peroxisome proliferation was increased 2- to 12-fold in all doses of both sexes. Antigen-specific antibody production was suppressed, on average, by 13% in males and by 12.4% in females across all doses. Spleen cellularity and lymphocyte subpopulations did not differ by dose for either sex. Our data indicate that though this complex PFAS mixture contained fairly low PFOA content, it induced changes in C57BL/6 mice similar to changes induced by PFOA alone, likely due to the presence of PFOS and many other PFASs.

Стилі APA, Harvard, Vancouver, ISO та ін.

40

Боташев, А. Ю., Р. А. Байрамуков, Н. У. Бисилов, and Р. С. Малсугенов. "STUDYING THE PROCESS OF HEATING OF A PIPE BILLET DURING GAS FORMING." ВЕСТНИК ВОРОНЕЖСКОГО ГОСУДАРСТВЕННОГО ТЕХНИЧЕСКОГО УНИВЕРСИТЕТА, no. 4 (October 20, 2021): 156–61. http://dx.doi.org/10.36622/vstu.2021.17.4.022.

Повний текст джерела

Анотація:

Разработана и представлена схема нового устройства, осуществляющего штамповку деталей с нагревом трубной заготовки воздействием продуктов сгорания газообразной топливной смеси. В качестве топливной смеси может использоваться горючий газ - смесь воздуха с метаном или с пропан-бутаном. Представлены результаты исследования процесса нагрева трубной заготовки воздействием продуктов сгорания. Исследование проведено на базе уравнений конвективного теплообмена, теплового баланса и термодинамики. Получена зависимость для определения температуры нагрева трубной заготовки. Установлено, что температура заготовки зависит от материала и геометрических размеров заготовки, а также давления топливной смеси. Данное устройство обеспечивает нагрев до интервала горячей обработки стальных трубных заготовок диаметром более 150 мм при толщине стенки до 1,2…1,5 мм, а при диаметре более 300 мм - толщиной до 2,0…2,5 мм. Для нагрева трубных заготовок из цветных металлов и сплавов (например, алюминия и меди) требуется меньшее давление топливной смеси, чем для стали, благодаря этому обеспечивается нагрев заготовок значительно большей толщины, в частности, заготовок из алюминия толщиной до 6 мм We developed a diagram of a new device for stamping parts by heating a pipe billet by the action of combustion products of a gaseous fuel mixture. A combustible gas can be used as a fuel mixture - a mixture of air with methane or with propane-butane. We present the results of a study of the process of heating a pipe billet by the action of combustion products. We carried out the study on the basis of the equations of convective heat transfer, heat balance and thermodynamics. We obtained the dependence for determining the heating temperature of the pipe billet. We found that the temperature of the workpiece depends on the material and geometric dimensions of the workpiece, as well as the pressure of the fuel mixture. This device provides heating to the hot working interval of steel pipe billets with a diameter of more than 150 mm with a wall thickness of up to 1.2 ... 1.5 mm, and with a diameter of more than 300 mm - with a thickness of up to 2.0 ... 2.5 mm. To heat tubular billets made of non-ferrous metals and alloys (for example, aluminum and copper), a lower pressure of the fuel mixture is required than for steel, due to this, billets of a much greater thickness are heated, in particular, billets made of aluminum with a thickness of up to 6 mm

Стилі APA, Harvard, Vancouver, ISO та ін.

41

Tchernogorova, O. P., O. A. Bannykh, V. M. Blinov, E. I. Drozdova, A. A. Dityat'ev, and N. N. Mel'nik. "Superhard carbon particles forming from fullerites in a mixture with iron powder." Materials Science and Engineering: A 299, no. 1-2 (February 2001): 136–40. http://dx.doi.org/10.1016/s0921-5093(00)01400-3.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

42

Kang, Tae-Wook, and In-Ja Lee. "Photoinduced J-Aggregation of Photochromic Spironaphthooxazine in a Glass Forming Organic Mixture." Chemistry Letters 36, no. 3 (March 5, 2007): 394–95. http://dx.doi.org/10.1246/cl.2007.394.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

43

Wang, Li-Min, Yongjun Tian, Riping Liu, and K. L. Ngai. "Anomalous Component Dynamics of a Binary Mixture of Associating Glass-Forming Liquids." Journal of Physical Chemistry B 115, no. 4 (February 3, 2011): 719–24. http://dx.doi.org/10.1021/jp1101362.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

44

Berthier, L., and W. Kob. "The Monte Carlo dynamics of a binary Lennard-Jones glass-forming mixture." Journal of Physics: Condensed Matter 19, no. 20 (April 25, 2007): 205130. http://dx.doi.org/10.1088/0953-8984/19/20/205130.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

45

Fynewever, Herb, Donna Perera, and Peter Harrowell. "Amorphous ground states and collective dynamics in a 2D glass-forming mixture." Journal of Physics: Condensed Matter 12, no. 8A (February 17, 2000): A399—A402. http://dx.doi.org/10.1088/0953-8984/12/8a/354.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

46

Monyakov, V. I., E. A. Kobolev, V. A. Shablovskii, A. V. Klyuchkin та A. Yu Tsuprun. "Selection of the slag-forming mixture in continuous casting of 45ХГМА steel". Steel in Translation 41, № 10 (жовтень 2011): 830–33. http://dx.doi.org/10.3103/s0967091211100135.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

47

Rahman, M., K. Shinohara, H. P. Zhu, A. B. Yu, and P. Zulli. "Size segregation mechanism of binary particle mixture in forming a conical pile." Chemical Engineering Science 66, no. 23 (December 2011): 6089–98. http://dx.doi.org/10.1016/j.ces.2011.08.024.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

48

Vilesov, Alexander D., Georg Floudas, Tadeusz Pakula, Elena Yu Melenevskaya, Tatiana M. Birshtein, and Yulia V. Lyatskaya. "Lamellar structure formation in the mixture of two cylinder-forming block copolymers." Macromolecular Chemistry and Physics 195, no. 7 (July 1994): 2317–26. http://dx.doi.org/10.1002/macp.1994.021950704.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

49

Stepanenko, D. A., A. S. Skachko, N. A. Tsyupa, and I. R. Snihura. "Experimental studies of the melting points of CaF2, pegmatite, and mixtures thereof with lime." Fundamental and applied problems of ferrous metallurgy, no. 33 (2019): 215–23. http://dx.doi.org/10.52150/2522-9117-2019-33-215-223.

Повний текст джерела

Анотація:

Nowadays, one of the pressing issues is the problem of reducing material and energy costs in the production of certain types of products. Of particular importance are issues of slag formation due to the development of a ladle furnace (LF) plant for smelting special and alloyed steel grades with stringent requirements for the content of harmful impurities. Therefore, the question of choosing the rational composition of the slag-forming mixture (SFM) requires special attention. The aim of this work is to carry out research to solve the problems of improving the quality and competitiveness of manufactured metal products. The paper presents analytical and experimental studies of the phase composition and melting temperature of the CaF2-CaO system, which is the basis of the slag-forming mixture for refining steel in a ladle at domestic metallurgical enterprises. Previous studies on the replacement of fluorspar in the SFM with mineral raw materials of the domestic field showed that the alternative is the use of pegmatite from the Eliseevskoye field (Zaporizhzhya region). This contains alkali metal oxides Na2O and K2O, which affect both the decrease in slag viscosity of metallurgical production and the effect of desulfurization of the metal melt. Experimental studies of the melting points of fluorspar, pegmatite, and mixtures thereof with lime have been performed. Also, corundum and periclase-carbon refractory, which is usually used for lining the slag belt of LF buckets, were used as a substrate on which the process of melting of the studied materials and their mixtures took place. It is shown that pegmatite favorably affects the process of lime rarefaction and the formation of slag melt and can be used as a component of the SFM. The use of pegmatite can completely or partially replace fluorspar in the composition of the slag mixture with lime.

Стилі APA, Harvard, Vancouver, ISO та ін.

50

Nasir, Nurulfazielah, Ridhwan Jumaidin, Mohd Zulkefli Selamat, Suhaila Salleh, and Kok Tee Lau. "Effect of Different Types of Pore-Forming Agent on the Macro Pore Size of Ceramic." Applied Mechanics and Materials 761 (May 2015): 380–84. http://dx.doi.org/10.4028/www.scientific.net/amm.761.380.

Повний текст джерела

Анотація:

The aim of this study is to determine the effect of different types of pore-forming agent and sintering temperature on the pore size of ceramics. The porous ceramic material was developed by mixing of alumina, zeolite and calcium oxide (CaO) as the main materials and ethylene glycol as the binder. Meanwhile, two types of pore-forming agent were used, i.e., yeast and a mixture of aluminium powder and expandable polymeric spheres (EPS). The content of pore-forming agent was at 10 wt% of the mixture and the samples were shaped by using plaster of paris mould. After being dried, the samples were sintered at temperature range of 1000 up to 1500 °C for two hours. Microstructural analysis and pores size measurement were performed to determine the effect of pore-forming agent and sintering temperature on the ceramic. The result showed that yeast yielded larger pore sizes in the porous ceramic upon being sintered at 1400 °C for two hours, which were up to 402 μm. Therefore, yeast has the potential to be utilized as pore-forming agent in development of filter and wall insulation material.

Стилі APA, Harvard, Vancouver, ISO та ін.

Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!