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Copyright of Bulletin of the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of the Chinese Society of Rare Earths is the property of Editorial Department of Journal of the Chinese Society of Rare Earths and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Iron Steel Vanadium Titanium is the property of Iron Steel Vanadium Titanium Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Rubber Industry is the property of Editorial Office of China Rubber Industry and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In recent years, deep eutectic solvents (DESs) have attracted increasing attention due to their ionic liquid analogue. Compared with ionic liquids, deep eutectic solvents had more advantages such as low-cost, easy synthesis and wide application. In the present work. deep eutectic solvents were prepared from choline chloride and ethylene glycol, choline chloride and 1.3-propanediol, choline chloride and 1,4-butanediol, respectively. At the same time their hydrogen bonding interactions were investigated by the FTIR and 'H NMR. The effects of different temperatures (303.15~343.15 K), molar ratio and alkyl chain length on the physicochemical properties of deep eutectic solvents were researched. The results showed that the hydrogen bonding of choline chloride is weakened with the increase of polyol content in choline chloride/alcohol deep eutectic solvent, and the hydrogen bonding of polyol is enhanced. It can form suitable hydrogen bonds when the choline chloride to ethylene glycol molar ratio of is 1: 3. Also, with the increasing of temperature, the viscosity of deep eutectic solvent notably decreases while the conductivity increases. On the other hand, density is slight affected by the temperature change. Under the same temperature, the viscosity and polarity of the deep eutectic solvent increases, and the conductivity, surface tension, and pH decreases, as the length of the alkyl chain increases. As glycol content increases, the viscosity decreases, and the pH increases first and then decreases, while the polarity and surface tension does not change significantly. The results of this study reveal the hydrogen bonding interaction of deep eutectic solvents based on choline chloride and different glycol. Furthermore, the physicochemical properties of DESs can provide scientific guidance for its application in the extraction field, which is of great significance and value. [ABSTRACT FROM AUTHOR]

Copyright of Railway Construction Technology is the property of Railway Construction Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Modern Food Science & Technology is the property of Editorial Office of Modern Food Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The research status of thixotropy at home and abroad was reviewed, including thixotropy classification, thixotropy model and thixotropy measurement. Thixotropy refers to the behavior that the viscosity of Non-Newtonian fluid changes with shear time at a certain temperature・ The research on thixotropy mechanism and thixotropy model will help people to have a deeper understanding of the thixotropy of materials, which is conducive to the promotion and application of thixotropy materials; secondly, the common thixotropic agents such as fumed silica, organic bentonite, hydrogenated castor oil, polyamide wax and so on were summarized・ A brief introduction was given to the rheological modification principle of thixotropic agents in the system and their application in polymer materials. With the continuous deepening of research and development, thixotropic agents have been widely used to improve the rheological properties of polymer materials such as coatings, paints, adhesives, etc., effectively improving material storage stability, workability, etc; finally, the research and development trends of thixotropy and thixotropic agents are summarized and prospected・ The application fields of thixotropy continue to expand, and the development of thixotropic agents continues to be diversified and efficient. [ABSTRACT FROM AUTHOR]

Copyright of Journal of the Chinese Society of Rare Earths is the property of Editorial Department of Journal of the Chinese Society of Rare Earths and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Self-cleaning mechanical screen is the main sand control method for completing wells in polymer flooding sand formations. The selection of seam type should not only ensure the ideal sand control accuracy, but also minimize the impact on the performance of chemical drive solutions・ The viscosity loss rate of polyacrylamide solution through the screen was investigated using a small visual sand control simulation experiment equipment. The effects of each screen slit type，pumping speed and solution viscosity on the viscosity of the polymer solution were evaluated・ The result showed that the experiments yielded a viscosity stabilization time of 1 h after the polymer solution was configured・ The rate of viscosity loss decreased as the fluid pumping rate increased・ The effect of solution concentration on viscosity under the same conditions is less and the recovery time is shorter・ The study considers the shear damage to fluid by common self-cleaning screen slits, and proposes a new manipulable experimental method for evaluating the performance of polymer flooding screen, which provides a reference for the preferential selection of mechanical sand control structure for well completion with polymer injection. [ABSTRACT FROM AUTHOR]

The thermoplastic resin has a huge molecular weight and high viscosity of its melt, so there are some problems in the preparation of composite materials by hot melting method, such as poor fluidity of resin and easy formation of composite defects on the microscopic scale. Using in-situ polymerization to prepare thermoplastic composites can not only avoid the above problems, but also use the forming method of thermosetting composites, so as to achieve high efficiency and low‐cost manufacturing of thermoplastic composites. Therefore, in-situ polymerization thermoplastic composites have broad application prospects in the field of composite materials. Based on several in-situ polymerized thermoplastic resins, this paper describes the research status of composite material properties and forming processes, and puts forward four research directions in view of the existing problems： Coupling of modification process and forming process, control of environmental cleanliness of polymerization and sensitivity of polymerization to impurities, control of heat release temperature of polymerization reaction, regulation of pot life of resin. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Engineering for Thermal Energy & Power / Reneng Dongli Gongcheng is the property of Journal of Engineering for Thermal Energy & Power and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Shell 90 # base asphalt and waste tire rubber powder are selected as the main test materials, and the penetration, viscosity, ductility and softening point of asphalt are taken as the indicators to evaluate the performance of rubber asphalt. The preparation temperature, rubber powder dosage, rubber powder mesh, mixing mode, heat storage mode, heat storage time and microstructure of rubber asphalt are studied in depth. The results show that the influence of preparation temperature on rubber asphalt is complex; When the mesh number of rubber powder is less than 30 and the content of rubber powder is less than 20%, the penetration of asphalt produced by shear method is greater than that by mixing method; The softening point of asphalt produced by mixing method is higher than that of asphalt produced by shear method, and the viscosity of asphalt produced by mixing method is higher than that of asphalt produced by shear method under the conditions of different rubber powder mesh and different rubber powder content; The viscosity of rubber asphalt in static storage is much faster than that in dynamic storage. Finally, it is concluded that the prepared asphalt can be reheated for up to one time at the preparation temperature of 185 ℃ after mixing for 1h, and the storage time under the static hot storage condition is not more than 2h. The produced rubber powder asphalt has the best performance in terms of ductility, viscosity, penetration, softening point and other technical indicators. [ABSTRACT FROM AUTHOR]

Copyright of Experimental Technology & Management is the property of Experimental Technology & Management Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Bulletin of the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Xinjiang Agricultural Sciences is the property of Xinjiang Agricultural Sciences Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Modified hydrogenated castor oil, polyamide wax and polyethylene wax were used as thixotropic agents of PERC back silver paste. The effects of different kinds of thixotropic agents on the properties of PERC back silver paste were studied. The above three thixotropic agents were used to prepare organic carriers, and PERC back silver pastes were prepared by combining the organic carrier, silver powder and self-made glass powder. The viscosity, thixotropy, storage stability, wet-weight and paste leakage of PERC back silver paste were tested by rotary viscometer, rheometer and printing press. The results show that the modified hydrogenated castor oil has the most obvious effect on the viscosity, thixotropy and storage stability of the PERC back silver paste, the polyamide wax is in the middle and the polyethylene wax is the weakest. After 1 % thixotropic agents were added in the organic carrier, the viscosity of the PERC back silver paste can increase by 1 500–20 000 mPa • s, the printing wet weight increase by 0. 001–0. 019 g/piece, and the leakage of the paste decrease by 0. 57–2. 22 g/piece. After 6 months of storage, the paste can still maintain a stable rheological state. [ABSTRACT FROM AUTHOR]

In order to develop new formula for capsule. k-Carrageenan, gellan gum, arabic gum, gelatin and KC1 were used as raw materials for capsule wall materials for cigarettes. The effects of the above raw materials on the dripping process and capsule quality were analyzed, and the forming process of dropping pills was discussed. Based on the evaluating standard of quality of capsule, the orthogonal test was performed. The proper formula is determined as follows: the adding amount ratio 2:1 of k.carrageenan and gellan gum, the addition amount of gum Arabic, gelatin, and KC1 are 4%,4% and 6%, respectively. After one month of manufacturing basing on the formula, the average qualified rate of capsule diameter, pressure value and appearance are 98. 7%, 98. 3% and 97. 6%, respectively. Fragrance has better releasing effect. It occupies the value of industrialized application. [ABSTRACT FROM AUTHOR]

Copyright of Bulletin of the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The removal of residual boron ions and metal ions in a fracturing flowback fluid in Ordos were investigated by used the cross-linking-precipitation method.The influence of three kinds of boron removal agents on cross-linking-precipitation method to study.The results showed that PVA-124 had the best boron removal effect. The response surface optimization experiment was carried out on the basis of single factor, and the process conditions were optimized: boron ion∶polyvinyl alcohol-124（molar ratio） 1∶15, pH of 10, reaction time of 30 min.The performance of the base fluid prepared by the treated water was evaluated, and the results showed that the viscosity, pH, shear resistance and gel breaking performance of the base fluid were all satisfactory, the requirements for the secondary dosing are met. [ABSTRACT FROM AUTHOR]

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The base fluid is an important factor affecting the performance of magnetorheological fluids. Compared with traditional base fluids, ionic liquids have moderate viscosity and polarity, and can be used as base fluids for preparing new magnetorheologiud fluids. In this paper, l-octyl-3-methylimidazole tetrafluoroborate ionic liquid is used as the base liquid, and carbonyliron powder is used as the dispersed phase particles to prepare a magnetorheological fluid with a particle volume fraction of 20%. Performance comparison of magnetorheo logical fluids is investigated. Therheological test results show that the maximum shear yield stress of the ionic liquid-based magnetorheological fluid at 436 kA/m is 29% hiigher than that of the silicone oil-based magnetorheological fluid. The ionic liquid-based magnetorheological fluid has a more significant Magnetorheological effect. [ABSTRACT FROM AUTHOR]

The effects of temperature and solute concentration on the viscosity of various carbohydrate solutions including fruit juice were investigated, and the applicability of a viscosity-predictive approach based on the glass transition temperature (Tg) was discussed. Maltodextrin, maltose, and calcium maltobionate-maltose mixture showed Newtonian behavior. Mango juice and mango puree showed pseudo-plastic and plastic behaviors, respectively, depending on the solute concentration. Results from all solutions except for those from mango puree were applied to the Vogel-Fulcher-Tammann (VFT) equation, and a constant (T0) in the VFT equation was determined. The Tg values, on the other hand, were calculated by the Gordon-Taylor (GT) equation using literature values. From the relationship between the predicted Tg and determined T0, it was found that the T0 decreased linearly with decreasing Tg depending on the solute, and the lines converged at the point for pure water. This result improves the applicability of a viscosity-predictive approach of which GT and VFT are combined (GT-VFT). The GT-VFT equation will be useful for the prediction of viscosity of carbohydrate solutions as functions of temperature and solute concentration based on minimal experimental results. [ABSTRACT FROM AUTHOR]

The effect of added liquid oil on the springiness of emulsion-type sausages without polyphosphate was investigated. Medium-chain fatty acid oil containing about 99% caprylic acid, safflower oil containing about 76% oleic acid, andsafflower oil containing about 71% linoleic acidwere usedas the liquidoils. After adding 10 to 70wt% of each liquidoil to refinedlard, the viscosity of the mixedoil was measured. The results showedthat the viscosity of all mixed oil samples was more decreased than that of the refined lard. There was no significant difference in cooking loss for sausages regardless of the type of mixed oil. In addition, a textural analysis of the hardness and springiness of the sausages revealedthat although the addition of the mixedoil hadno effect on hardness, the springiness improved as the blending amount of the liquid oil was increased. Furthermore, a high correlation was observed between the viscosity of the mixedoil andspringiness, regardless of the liquidoil used. Fluorescence microscopy observations of fluorescein 5-isothiocyanate stainedproteins in the sausages revealedthat the protein structure of sausages blended with mixedoil was finer than that of products using polyphosphate. [ABSTRACT FROM AUTHOR]

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this article, the tensile strength, melting properties, and fiber-forming properties of natural continuous basalt fibers, such as andesite, andesite basalt, and tholeiitic basalt, are investigated as a function of their chemical and mineral compositions. The results indicate that when the basalt glass melts are homogeneous, the tensile strength is mainly determined by the chemical composition as well as the mineral components, which will affect the melting properties and fiber-forming properties. By optimizing the melting properties and fiber-forming properties, a high filament tensile strength of 3390 MPa was achieved for the basalt andesite with regions of tholeiitic basalt with an SiO2 weight percentage of 49%–57%. [ABSTRACT FROM AUTHOR]

In order to improve the lubrication condition of high pair contact parts in point contact，the lubrication oil film in Hertz contact zone was studied. Coupled with contact mechanics and hydrodynamic lubrication equations，the multigrid method and Fortran language programming were used to solve the equations of EHL of isothermal point contact，and the curves of film thickness and pressure with different ellipticity Ke，load w，entrainment velocity u and viscosity ^0 were obtained. By studying the position of minimum film thickness and secondary pressure peak and the change degree of film thickness and pressure in the process of changing of film thickness and pressure， the factors affecting the change law of oil film in Hertz contact zone were obtained and analyzed. The results indicate that the contact ellipse changes with the change of ellipticity，load，entrainment velocity and viscosity，and the change of contact ellipse affects the film thickness and pressure of lubrication oil in varying degrees. In a certain range，increasing ellipticity，entrainment velocity and viscosity and reducing load are beneficial to improving lubrication performance. [ABSTRACT FROM AUTHOR]

Tn this paper, the hydrocarbon PCM slurry with mass fraction of 30% was selected as the base fluid, and a variety of PCM slurry with nano particles (TiO2) and dispersant (SDBS sodium dodecyl benzene sulfonate) were prepared by "two-step methodThe effects of nanoparticle mass fraction, nanoparticle size and dispersant mass fraction on the viscosity of PCM slurry were tested and analyzed. The results show that the larger the mass fraction and the larger the particle size, the higher the viscosity of the phase change fluid at the same temperature. However the viscosity of PCM slurry decreased first and then increased with the increase of mass fraction of dispersant. When the mass fraction of dispersant was 0.J %, the viscosity of PCM slurry reached the minimum. [ABSTRACT FROM AUTHOR]

Ｉｎ ｏｒｄｅｒ ｔｏ ｉｍｐｒｏｖｅ ｔｈｅ ｌｕｂｒｉｃａｔｉｏｎ ｃｏｎｄｉｔｉｏｎ ｏｆ ｈｉｇｈ ｐａｉｒ ｃｏｎｔａｃｔ ｐａｒｔｓ ｉｎ ｐｏｉｎｔ ｃｏｎｔａｃｔ, ｔｈｅ ｌｕｂｒｉｃａｔｉｏｎ ｏｉｌ ｆｉｌｍ ｉｎ Ｈｅｒｔｚ ｃｏｎｔａｃｔ ｚｏｎｅ ｗａｓ ｓｔｕｄｉｅｄ. Ｃｏｕｐｌｅｄ ｗｉｔｈ ｃｏｎｔａｃｔ ｍｅｃｈａｎｉｃｓ ａｎｄ ｈｙｄｒｏｄｙｎａｍｉｃ ｌｕｂｒｉｃａｔｉｏｎ ｅｑｕａｔｉｏｎｓ, ｔｈｅ ｍｕｌｔｉｇｒｉｄ ｍｅｔｈｏｄ ａｎｄ Ｆｏｒｔｒａｎ ｌａｎｇｕａｇｅ ｐｒｏｇｒａｍｍｉｎｇ ｗｅｒｅ ｕｓｅｄ ｔｏ ｓｏｌｖｅ ｔｈｅ ｅｑｕａｔｉｏｎｓ ｏｆ ＥＨＬ ｏｆ ｉｓｏｔｈｅｒｍａｌ ｐｏｉｎｔ ｃｏｎｔａｃｔ, ａｎｄ ｔｈｅ ｃｕｒｖｅｓ ｏｆ ｆｉｌｍ ｔｈｉｃｋｎｅｓｓ ａｎｄ ｐｒｅｓｓｕｒｅ ｗｉｔｈ ｄｉｆｆｅｒｅｎｔ ｅｌｌｉｐｔｉｃｉｔｙ Ｋｅ, ｌｏａｄ ｗ, ｅｎｔｒａｉｎｍｅｎｔ ｖｅｌｏｃｉｔｙ ｕ ａｎｄ ｖｉｓｃｏｓｉｔｙ η０ ｗｅｒｅ ｏｂｔａｉｎｅｄ. Ｂｙ ｓｔｕｄｙｉｎｇ ｔｈｅ ｐｏｓｉｔｉｏｎ ｏｆ ｍｉｎｉｍｕｍ ｆｉｌｍ ｔｈｉｃｋｎｅｓｓ ａｎｄ ｓｅｃｏｎｄａｒｙ ｐｒｅｓｓｕｒｅ ｐｅａｋ ａｎｄ ｔｈｅ ｃｈａｎｇｅ ｄｅｇｒｅｅ ｏｆ ｆｉｌｍ ｔｈｉｃｋｎｅｓｓ ａｎｄ ｐｒｅｓｓｕｒｅ ｉｎ ｔｈｅ ｐｒｏｃｅｓｓ ｏｆ ｃｈａｎｇｉｎｇ ｏｆ ｆｉｌｍ ｔｈｉｃｋｎｅｓｓ ａｎｄ ｐｒｅｓｓｕｒｅ, ｔｈｅ ｆａｃｔｏｒｓ ａｆｆｅｃｔｉｎｇ ｔｈｅ ｃｈａｎｇｅ ｌａｗ ｏｆ ｏｉｌ ｆｉｌｍ ｉｎ Ｈｅｒｔｚ ｃｏｎｔａｃｔ ｚｏｎｅ ｗｅｒｅ ｏｂｔａｉｎｅｄ ａｎｄ ａｎａｌｙｚｅｄ. Ｔｈｅ ｒｅｓｕｌｔｓ ｉｎｄｉｃａｔｅ ｔｈａｔ ｔｈｅ ｃｏｎｔａｃｔ ｅｌｌｉｐｓｅ ｃｈａｎｇｅｓ ｗｉｔｈ ｔｈｅ ｃｈａｎｇｅ ｏｆ ｅｌｌｉｐｔｉｃｉｔｙ, ｌｏａｄ, ｅｎｔｒａｉｎｍｅｎｔ ｖｅｌｏｃｉｔｙ ａｎｄ ｖｉｓｃｏｓｉｔｙ, ａｎｄ ｔｈｅ ｃｈａｎｇｅ ｏｆ ｃｏｎｔａｃｔ ｅｌｌｉｐｓｅ ａｆｆｅｃｔｓ ｔｈｅ ｆｉｌｍ ｔｈｉｃｋｎｅｓｓ ａｎｄ ｐｒｅｓｓｕｒｅ ｏｆ ｌｕｂｒｉｃａｔｉｏｎ ｏｉｌ ｉｎ ｖａｒｙｉｎｇ ｄｅｇｒｅｅｓ. Ｉｎ ａ ｃｅｒｔａｉｎ ｒａｎｇｅ, ｉｎｃｒｅａｓｉｎｇ ｅｌｌｉｐｔｉｃｉｔｙ,ｅｎｔｒａｉｎｍｅｎｔ ｖｅｌｏｃｉｔｙ ａｎｄ ｖｉｓｃｏｓｉｔｙ ａｎｄ ｒｅｄｕｃｉｎｇ ｌｏａｄ ａｒｅ ｂｅｎｅｆｉｃｉａｌ ｔｏ ｉｍｐｒｏｖｉｎｇ ｌｕｂｒｉｃａｔｉｏｎ ｐｅｒｆｏｒｍａｎｃｅ. [ABSTRACT FROM AUTHOR]

Copyright of Journal of the Chinese Society of Rare Earths is the property of Editorial Department of Journal of the Chinese Society of Rare Earths and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Using commercial citrus pectin as control for comparison, loss on drying, ash, acid insoluble ash, pH, degree of esterification, galacturonic acid and solubility of akebia trifoliata pectin were deter-mined by QB2484-2000/GB2553-2010 standard;determination of viscosity average molecular weight and infrared spectrum analysis of akebia trifoliata pectin;the effects of temperature, concentration, pH and different food additives on the viscosity of pectin were examined. The results showed that loss on drying was 10. 89%, ash was 4.17%, acid insoluble ash content was 0.94%, pH was 2.92, esterification degree was 82.84%, the total galacturonic acid was 81.35%, solubility was 84.66%, and it was a high methoxyl pectin. The viscosity average molecular weight is about 400, 000, and the infrared spectrum analysis also proves to be a high methoxyl pectin. Its viscosity gradually decreased with increasing heating time;the viscosity of akebia trifoliata pectin was positively correlated with its concentration and sucrose concentration but negatively correlated with temperature, sodium chloride concentration and citric acid concentration displayed an initial increase and a subsequent decrease with increasing pH and calcium chloride concentration. [ABSTRACT FROM AUTHOR]

In this paper，viscosity, penetration degree, softening point, ductility and elastic recovery were studied, focusing on using orthogonal experimental design method to study the above mentioned properties with different meshes and proportions of rubber powder as well as shear temperature and time. Rubber asphalt mixture (RAM) was mixed following the optimal scheme, and its pavement performances were studied compared to asphalt mixture(AM). The results show that RAM with 20% rubber powder of 40 meshes and blended at 150-170 °C for 90 min shows better high temperature stability, low temperature anti-cracking performance and water stability than AM. The dynamic stability and the ability to resist damage strain are increased by 52 % and 15.6%，while the rutting depth and the deformation rate are reduced by nearly 26% and 60% respectively. All aspects of RAM have been improved obviously than AM, owning a good application prospect. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Petroleum Geology & Recovery Efficiency is the property of Petroleum Geology & Recovery Efficiency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Aiming at the requirement of high speed and heavy duty bearings, and the advantages of the magnetic fluid bearing in terms of self-lubricating sealing, high reliability, high-speed, low-friction lubrication, the performance of the magnetic fluid bearing was evaluated. Firstly, the theoretic analysis of viscosity of the magnetic fluid were carried out. An external magnetic field was applied and the viscosity- pressure and viscosity-temperature characteristics were obtained by using Matlab. The magnetic field distribution was designed and obtained using the finite element analysis. The results indicate that under the influence of external magnetic field, the viscosity of the magnetic fluid bearing lubricant changes, meanwhile, compared to the conventional bearing, the bearing capacity of the magnetic fluid bearing is improved, and therefore, it can work in conditions of high temperature and high speed. [ABSTRACT FROM AUTHOR]

介绍了光缆用阻水带中超强吸水聚合物的结构特性、膨胀吸水及其作用机理。在理论分析的基础上,结合光缆使用的实际情况,对阻水带中起关键作用的超强吸水聚合物的凝胶强度和热稳定性提出了一种简便而有效的测试方法—粘度测试法。通过对比实验,证明了这种方法在阳水带质量控制中具有一定的实际意义。

在Eyring的液体粘性流动分子模型基础上, 导出一个双参数粘度新模型, 把属于传递性质的粘度与物质的体积、蒸发内能以及过量函数等平衡性质联系起来,为状态方程在粘度推算中的应用构筑了桥梁.用MH(81)状态方程计算了40个液体纯物质和19个二元液体混合物的粘度,总体平均偏差分别为1.82%和1.78%.

本文对用于制备光纤的石英玻璃管的高温软化性能进行了研究。用高温显微镜观察了不同样品的高温变化状态,测定了金属杂质和OH基含量。文中还详细讨论了影响石英玻璃软化性能的因素,提出了改进国产石英玻璃管质量的建议。

comparison of rennet coagulation of milk supplemented with vacuum-condensed or ultrafiltered milk was undertaken. Five treatments with two levels of protein (45 and 60 g·kg) from vacuum-condensed (CM1 and CM2) and ultrafiltered milk (UF1 and UF2) along with a 32 g·kg protein control were compared. A Formagraph was used to characterize rennet clotting time (RCT), amplitude at 40 min ( a), and time to achieve amplitude of 20 mm ( k). Rennet was added at 192 μL·kg milk, without prior addition of starter. RCT was lower for CM than for UF, and lower for higher protein milks. The k values were lower for higher protein samples, indicating a higher rate of curd firming; and were not affected by the method of concentration. The a values (i.e., curd firmness) were higher for samples with higher protein content. Statistically there was no effect of method of concentration on a; however subjective analysis of curds during cheese making indicated that CM curds were firmer than UF curds. T further evaluate the discrepancy in coagulum characteristics, viscosity during coagulation was monitored. Samples of milk were inoculated with starter culture; each treatment was inoculated with two levels of rennet (132 and 192 μL·kg); and changes in viscosity were determined throughout coagulation using Brookfield viscometer. Calculated coagulum strength varied from 2.72 to 9.22 N·m; and increased as protein level increased. Also, CM curd was firmer than its UF counterpart. A higher rate of inoculation of rennet can reduce coagulum strength; however the rate should be optimized to avoid decreasing coagulation time to an unacceptable level. 摘要 真空浓缩和超滤浓缩乳的酶凝乳特性 [ABSTRACT FROM AUTHOR]