搜索结果: 76-90 共查到“工学 Preparation”相关记录210条 . 查询时间(0.171 秒)
低温挤压加酶脱胚玉米粉生产酒精试验（Experiment on Productive of Ethanol for Extruded Corn Grist Degermed with Enzyme Preparation at Low Temperature）
脱胚玉米粉 挤压 低温
2009/11/24
研究低温挤压加酶脱胚玉米粉，直接液化、糖化、发酵、蒸馏生产酒精技术，并考察了脱胚玉米粉挤压前耐高温α淀粉酶添加量、挤出物糖化时糖化酶添加量、糖化时间、液化时耐高温α淀粉酶添加量、发酵时酵母添加量对醪液的主要考察指标（醪液的酒精度、淀粉出酒率、残总糖）的影响规律。结果表明，本研究的挤压-糖化-发酵系统主要参数优化值对应的醪液发酵48h的酒精度、淀粉出酒率分别为13.45%和59.21%，高于对照挤压...
基于Box-Behnken模型的卵清蛋白糖基化制备技术（Optimization of the Preparation of Glycated Egg White Protein by Box-Behnken Model）
卵清蛋白 糖基化 乳化性质
2009/11/24
采用Box-Behnken模型对卵清蛋白糖基化反应过程进行优化，测定并分析了糖基化卵清蛋白在各种条件下的乳化性质。结果表明其最佳反应条件为：糖添加量9%，反应时间48h，反应温度60℃，在此条件下乳化活性为1.328，乳化稳定性为9.63min，相对卵清蛋白分别提高了3.7倍和8.75倍。糖基化程度与乳化活性及乳化稳定性的关系符合Lerentz函数。糖基化卵清蛋白的乳化性质相对不受低pH值和高离子...
Preparation of Porous Bamboo Carbon by Low-Temperature Activation in Air
bamboo carbonization air oxidation ash potassium
2009/11/23
Bamboo carbon was prepared in N2 flow for 2 hours at 500 °C with heating rates from 7 °C/min to 39 °C/min, resulting in a BET surface area ranging from 28 to 252 m2/g, respectively. For the next step,...
Preparation and Anti-coking Property of SiO2/S Coating on HP40 Tube
SiO2/S coating HP40 tube
2009/11/13
SiO2/S coating was prepared on the inner surface of an HP40 tube using dimethyldisulfide and tetraethylorthosilicate by atmospheric pressure chemical vapor deposition (APCVD) to alleviate catalytic co...
Preparation and Characterization of Copolymer Micelles Formed by Poly(ethylene glycol)-Polylactide Block Copolymers as Novel Drug Carriers
poly(ethylene glycol) polylactide block copolymer
2009/11/13
Diblock copolymer poly(ethylene glycol) methyl ether-polylactide (MePEG-PLA) micelles were prepared by dialysis against water. Indomethacin (IMC) as a model drug was entrapped into the micelles by dia...
Preparation and Characterization of Three-dimensional Photocatalyst-TiO2 Particulate Film Immobilized on Activated Carbon Fibers
liquid phase deposition TiO2 particulate film activated carbon fibers
2009/11/13
A novel three-dimensional photocatalyst, TiO2 particulate film immobilized on activated carbon fibers (TiO2/ACFs), was prepared by liquid phase deposition. The photocatalyst was characterized by SEM, ...
Preparation of Hydrogen through Catalytic Steam Reforming of Bio-oil
fast pyrolysis bio-oil,hydrogen steam reforming
2009/11/13
Hydrogen was prepared via catalytic steam reforming of bio-oil which was obtained from fast pyrolysis of biomass in a fluidized bed reactor. Influential factors including temperature, weight hourly sp...
Preparation of Isolated Single-walled Carbon Nanotubes with High Hydrogen Storage Capacity
carbon nanotubes synthesis alcohol benzene
2009/11/13
Isolated single-walled carbon nanotubes with high proportion of opening tips were synthesized by using alcohol as carbon source. The mechanism of cutting action of oxygen was proposed to explain its g...
Preparation of Peracetic Acid from Acetic Acid and Hydrogen Peroxide: Experimentation and Modeling
peracetic acid hydrogen peroxide equilibrium constant modeling
2009/11/13
Based on the kinetic equations and equilibrium constants, some mathematic models were developed for calculating peracetic acid (PAA) concentration, equilibrium conversion rate of hydrogen peroxide, et...
Study of the Gelling Process for the Preparation of Tin Oxide Materials Based on Tin Tetrabutoxide
sol gel tin tetrabutoxide hydrolysis condensation
2009/11/13
The gelling process in the preparation of tin oxide materials based on tin tetrabutoxide is studied. Sn(OBun)4 modified by two moles of acetylacetone (AcAc) has a stable six-member ring structure and ...
THE INFLUENCE OF THE BASE MATERIAL SURFACE PREPARATION ON THE PROPERTIES OF THERMALLY SPRAYED COATINGS
thermal spraying gas flame surface preparation
2009/10/23
Using specimens, a research was conducted to determine the influence of the base material surface preparation
for 42CrMo4 on the final coating, prior to actual thermal spraying. During thermal sprayi...
Preparation of Homogeneous Feedstocks for Injection Moulding of Zirconia-Based Ceramics
Feedstock Mixing Injection Moulding Zirconia
2009/10/13
In this study, a new method for preparing homogeneous feedstocks for injection moulding of ZrO2
ceramics was developed and explained in detail. Mixture homogeneity on a large scale was assessed by me...
A New Protective Polyethylene Based Film Containing Zeolites for the Packaging of Fruits and Vegetables: Film Preparation
Packaging film Polyethylene Zeolite
2009/10/12
To manufacture a polyethylene film containing zeolite particles for the packaging of foods six manufacturing methods were tried: hot pressing, addition of zeolite to molten polyethylene and dissolved ...
Simple and Multiple Water Fuel Emulsions Preparation in Helical Flow
Simple and multiple emulsions Couette-Taylor flow
2009/10/10
This paper presents a method of simple and multiple water fuel emulsions preparation in a liquid-liquid contactor with Couette-Taylor flow (CTF contactor). This method concerns the integration of the ...
Use of Nuclear Data Sensitivity and Uncertainty Analysis for the Design Preparation of the HCLL Breeder Blanket Mockup Experiment for ITER
Nuclear Data Design Preparation
2009/9/3
An experiment on a mockup of the test blanket module based on helium-cooled lithium lead (HCLL) concept will be performed in 2008 in the Frascati Neutron Generator (FNG) in order to study neutronics c...