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Particuology 2022年第1期20卷 61-67页

作者： Nan Deng Yujun Wang Guangsheng Luo State Key Laboratory of Chemical Engineering Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

Previously we had developed a microfluidic system that can be easily fabricated by bending a stainless-steel tube into large circular *** this study,a fast and continuous preparation method for superfine TiO_(2) nanoparticles(TiO_(2)-NPs)was developed for the aforementioned microfluidic *** proposed method can yield anatase TiO_(2) in 3.5 min,in contrast to the traditional hydrothermal reaction method,which requires hours or even *** reaction conditions,such as reaction temperature(120-200℃),urea concentration(20-100 g/L),and tube length(5-20 m)were investigated.X-ray diffraction and Brunauer-Emmett-Teller analysis indicate that the as-prepared TiO_(2)-NPs have crystalline sizes of 4.1-5.8 nm and specific surface areas of 250.7-330.7 m^(2)/*** electron microscopy images show that these TiO_(2)-NPs have an even diameter of approximately 5 ***,because of their small crystalline sizes and large specific surface areas,most of these as-prepared TiO_(2)-NPs exhibit considerably better absorption and photocatalytic performance with methylene blue than commercial P5 TiO_(2) does.

关键词： Titanium dioxide Microfluidic system Nanoparticles Fast preparation superfine

Observation of changes in the number of myocardial capillaries in rabbits after treatment of acute myocardial infarction by Tongxinluo superfine powder

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Journal of Traditional Chinese Medicine 2018年第3期38卷 406-411页

作者： Wu Haotian Zhang Fengshun Liu Jinyi Li Xuezhao Guo Fei Wu Yiling School of Basic Medicine Nanjing University of Traditional Chinese Medicine Nanjing 210029 China Pharmaceutical Research Institute of Yiling Shijia-zhuang 050035 China Key Laboratory of State of Traditional Chinese Medicine (Cardo-Cerebral Vessel Collateral Disease) the Traditional Research Room of Traditional Chinese Medicine Shijiazhuang 050000 China Key Disciplines of State Administration of Traditional Chinese Medicine for Collateral Disease Shiiiazhuang 050000 China Hebei University Health Science Center pathology Laboratory Baoding 071000 China

OBJECTIVE: To investigate the effects of Tongxinluo superfine powder on cardiac function, infarct size and the number of myocardial capillaries in a rabbit model of acute myocardial ***: A total of 32 New Zealand white rabbits were randomly divided into four groups: sham operation group, model group, treatment group,and pre-treatment, the experiment of pre-treatment group was performed 6 weeks early than the treat) group,The four groups use a unified modeling technique. An acute myocardial infarction model was established through external application of70% ferric chloride on the coronary artery. After 7 d,electrocardiogram, ultrasonography of cardiac function, micro-computed tomography, pathology and other data were ***: In the treatment and pre-treatment groups, ejection fraction, left ventricular short axis shortening rate, left ventricular end-systolic diameter and cardiac output significantly improved, the number of capillaries significantly increased, and infarct size significantly decreased. In addition, the results suggest that the value of intra-ventricular pressure and the situation of electrocardiogram also changed to different degrees with the increasing of treatment of ***: Tongxinluo superfine powder can protect the myocardium, improve the blood supply of the myocardium and reduce the degree of myocardial injury, during acute stage of myocardial infarction.

关键词： Myocardial infarction Myocardium Mi-crocirculation X-Ray Microtomography Ferric chlo-ride Tongxinluo superfine powder

Mathematical Index for Evaluating Disperse Dyes Levelness of superfine Polyester Fabric

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Journal of China Textile University(English Edition) 2000年第2期17卷 61-64页

作者：王晶董振礼王宁 China Textile Univ Shanghai China

The dyeing deference between the superfine and the con-ventional polyester fabric is discussed. The major threefactors affecting the level dyeing property of superfinepolyester-initial adsorption rate, desorption rate andinterface migration rate of dyestuffs at 70℃ are *** levelness improves considerably with decreased ini-tial adsorption rate, increased desorption rate and inter-face migration rate. And then a mathematical indexbased on them is established. The evaluation to dispersedyes resulting from it corresponds with their perfor-mance during industrial process. As new definitions, ini-tial adsorption rate and desorption rate of dyestuffs arefirstly introduced.

关键词： superfine polyester fabric level dyeing property disperse dye mathematical index for evaluating levelness .

Effect of superfine Grinding on Physicochemical Properties, Antioxidant Activity and Phenolic Content of Red Rice ( <i>Oryza sativa</i>L.)

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Food and Nutrition Sciences 2015年第14期6卷 1277-1284页

作者： Q. M. Chen M. R. Fu F. L. Yue Y. Y. Cheng Department of Food Science and Engineering Shandong Agricultural and Engineering College Jinan China College of Food Science and Engineering Qilu University of Technology Jinan China

Red rice gains popularity as a functional crop owing to its high polyphenols content and antioxidant activity. However, active components are discarded in common milling. superfine ground technology was employed in this paper. To evaluate the influence of superfine ground processing on the physicochemical properties and functional effect of red rice (Oryza sativa L.), four powders with the size of 156.74 μm, 69.53 μm, 26.35 μm, and 10.68 μm were prepared by superfine grinding technology in this paper. Results showed that the size was smaller for red rice powders, greater for the bulk density (from 0.624 g/ml to 0.745 g/ml), and smaller for the angle of repose (from 74.67°to 61.41°) and slide (from 38.99°to 26.42°). The values of water solubility index, water holding capacity and enzymatic digestibility by α-amylase significantly increased with the decreasing particle size (P superfine ground. These results indicated that superfine ground would improve the physicochemical and functional properties of red rice, which was helpful to promote the overall quality and healthy effect of foods containing red rice.

关键词： superfine Ground Red Rice Physicochemical Properties Antioxidant Activity Phenolic Content

The Feasibility of Basalt Rock Powder and superfine Sand as Partial Replacement Materials for Portland Cement and Artificial Sand in Cement Mortar

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Research and Application of Materials Science 2019年第1期1卷 1-9页

作者： Hongxia Qiao Desire Ndahirwa Yuanke Li Jinke Liang Professor Department of Construction MaterialsSchool of Civil EngineeringLanzhou University of TechnologyKey Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu ProvinceLanzhou 730050China Postgraduate Student Department of Structural EngineeringSchool of Civil EngineeringLanzhou University of TechnologyLanzhou 730050China

The research gap on the feasibility of basalt rock powder(BRP)and superfine sand(SS)in preparation of cement mortar is *** study examines probable changes occurred in the modified cement mortar due to incorporation of certain quantity of basalt rock powder and superfine sand in mixture *** cement mortar included Portland cement,artificial sand and water as principal mixture ***,basalt rock powder and superfine sand were added as partial replacement materials for Portland cement and artificial sand ***,replacement percentages were 10%,15%,20%,25%and 30%when the basalt rock powder replaced Portland cement and in case the artificial sand was replaced by superfine sand,10%,20%,30%,40%and 50%.Then,the strength indexes such as flexural strength,compressive strength,ultrasonic pulse velocity and dynamic elastic modulus were *** results show that the presence of basalt rock powder in mixture proportion increased the flexural and compressive strengths of cement mortar however the cement mortar that contained superfine sand illustrated inadequate mechanical performance as flexural and compressive strengths decreased ***,when basalt rock powder and superfine sand were included together in mixture proportion,the cement mortar’s mechanical performance declined compared to that of the reference cement *** the fact that basalt rock powder and superfine sand weakened the cement mortar’s mechanical properties,it was found that they can be added into the cement mortar as partial replacement of Portland cement and artificial sand in the following ratios:from 10%to 25%when basalt rock powder replaces Portland cement and from 10%to 20%when artificial sand is replaced by superfine sand.

关键词： basalt rock powder superfine sand artificial sand cement mortar mechanical properties

Synthesis and Application of Easy Hydrolysis Degradable Polyester

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Journal of Donghua University(English Edition) 2001年第3期18卷 24-27页

作者：张大省李燕立陈英付中玉王锐李梅 Beijing Inst. of Clothing Technol. Beijing 100029 China

An easy hydrolysis degradable polyester (EHDP) is synthesized; the fiber produced from which can be hydrolyzed by dilute basic solution easily. The properties of these kind polyesters are measured. The results show that this kind polymer is suitable to be spun into filament The EHDP can be spun into staple fiber and manufactured into non-woven fabric. This fabric is used as disposable clothes. In composite spinning, the PET (polyethylen glycol terephthalate) or PA (polyamide) is used as continuous phase, and EHDP used as dispersed phase. Then the fabric of this kind fiber is treated by basic solution; the ultra-fine fiber fabric is *** fineness of the fiber is about 0.045 dtex. In blend spinning, EHDP is mixed with polypropylene (PP) to produce hollow fiber with micro-holes in radical direction. This fiber is a usable material in filter especially in medical use.

关键词： modified polyester, superfine fiber, composite fiber, blend membrane.

钛酸钡锶复盐超微陶瓷粉末制备以及粉末结构测定

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贵州大学学报（自然科学版） 1992年第4期9卷 252-255页

作者：栋旭余华李万春雷元礼贵州大学应用化学研究所化学系贵阳550025

本文首次报道采用简单低耗的有机介质化学共沉淀法,制备超微陶瓷粉末钛酸钡锶复盐(Ba_xSr(1-x)TiO_3)。由扫描电镜观测其平均粒径在0.45μm以下。由X-粉晶衍射图得到,该复盐粉末属于BaTiO_3(四方)与SrTiO3(立方)的混晶。

关键词： superfine powder barium strontium tinanate determination of crystal struclure.

Wool characteristics of crossbred Baghdadi wild ram and Iran native sheep

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Agricultural Sciences 2012年第2期3卷 184-186页

作者： Nosratollah Taherpour Farhad Mirzaei Animal Science Research Institute of Iran Karaj Iran

Twenty mid side wool samples of crossbred sheep were collected and their characteristics were determined. Data analyzed by SAS software and Duncan’s multiple range tests was used for comparison of mean wool characteristics. Average fleece weight, yield, wool diameter, Fine fiber and staple length were: 431.59 ± 38.95 gr, 65.14%, 14.24 ± 0.67 μm, 48.67 ± 5.59, and 43.65 ± 4.15 mm respectively. Mean fleece weight was significantly affected (p 1 and F2 generation 11.84 ± 0.58, 16.27 ± 0.72 μm respectively. There were effective differences among ages (12.55 ± 0.74, 14.47 ± 0.58 and 13.11 ± 0.64 μm for 1, 2 and 3 yr old respectively). Wool diameter of younger animals, males and F1 was so fine (12.55, 12.87 and 11.84 μm respectively). Staple length of F2 crosses was significantly longer than F1 crosses (p 1 was significantly finer than F2, but length and down fiber percentage was less than second generation. As wild sheep shed his fiber in winter, the first filial crosses also shed their fibers from the end of winter to early spring. Shedding was seldom observed in F2 generations. It seems likely that wool from crossbred sheep could be used for those applications for which cashmere is suitable. This study indicates that, such crossbred sheep have a superfine wool and could be used in pure or blend for textile industry.

关键词： Wool Characteristics Farahani Sheep Crossbreeding superfine Wool Wild Sheep Carpet Wool