搜索结果: 1-15 共查到“工学 vacuum”相关记录66条 . 查询时间(0.078 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：On vacuum static spaces
真空 静态空间 闭真空
2023/11/29
In this talk, we will discuss vacuum static spaces. We firstly introduce the motivation, recent development and some difficult problems that have yet to be solved on vacuum static spaces. Then we pres...
Mass spectrometers are extremely precise chemical analyzers that have many applications, from evaluating the safety of drinking water to detecting toxins in a patient’s blood. But building an inexpens...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Optimal decay rates on compressible Navier-Stokes equations with degenerate viscosity and vacuum
简并粘度 真空 可压缩 NS方程 最佳衰减率
2023/4/18
In this talk, we consider the large time behavior of the weak solution to the free boundary problem for one-dimensional isentropic compressible Navier-Stokes equations with degenerate viscosity and va...
Look Ma,No Hands:Researchers Use Vacuum for Hands-Free Patterning of Liquid Metal
Look Ma No Hands Researchers Vacuum Hands-Free Patterning Liquid Metal
2017/9/5
This paper describes the utilization of vacuum to fill complex microchannels with liquid metal. Microchannels filled with liquid metal are useful as conductors for soft and stretchable electronics, as...
Influence of Technology and Ripening on Textural and Sensory Properties of Vacuum Packaged Ewe’s Cheese
texture sensory characteristics ewe’s milk cheese storage vacuum packaging
2016/12/9
The effect of curd cooking temperature (40 and 42°C), pressing, and ripening on textural and sensory properties of vacuum packaged semi-cooked ewe’s milk cheese was studied. Chemical and microbiologic...
Influence of temperature on vacuum drying characteristics, functional properties and micro structure of Aloe vera (Aloe barbadensis Miller) gel
therapeutic moisture ratio activation energy
2015/12/30
Aloe vera possesses therapeutic, antioxidant and some other functional properties. These properties may be affected by processing operations. The present study investigated the influence of operating ...
Likely values of the Higgs vacuum expectation value
Function the higgs vacuum expectations the atoms the standard model the yukawa coupling
2014/12/18
We make an estimate of the likelihood function for the Higgs vacuum expectation value (vev) by imposing anthropic constraints on the existence of atoms while allowing the other parameters of the stand...
Low-pressure treatment to control food-infesting pests (Tribolium castaneum, Sitophilus granarius) using a vacuum packing machine
food protection ood safety red flour beetle granary weevil non chemical control temperature influence vacuum packing food
2014/2/24
Since recently, the food industry has been faced with serious problems regarding pest-infested food commodities and deregistration of many chemical biocides by the EU Biocide Directive. These conditio...
Negative differential thermal conductance through vacuum
Negative differential thermal conductance through vacuum
2015/8/7
We propose a scheme for achieving negative differential thermal conductance in near-field electromagnetic thermal transfer. As an example, we show that the scheme can be implemented with two sla...
A Parametric Study on the Starting Transients of a Vacuum Ejector-Diffuser System
Parametric Starting Transients Vacuum Ejector-Diffuser System Fluid Dynamics
2012/4/24
In this endeavor, the transients persisting in a vacuum ejector system (put reference of my old paper) is studied by numerically simulating the flow field, and experimentally validating the simulated ...
Experimental study on the feasibility of explosion suppression by vacuum chambers
Vacuum chamber Suction Explosion suppression Specific impulse Overpressure–impulse guideline (P–I guideline)
2012/3/28
In view of the invalidity of suppression and isolation apparatus for gas explosion, a closed vacuum chamber structure for explosion suppression with a fragile plane was designed on the base of the suc...
Effect of high pressure treatment on microbial populations of sliced vacuum-packed cooked ham
High hydrostatic pressure DGGE Weissella viridescens Cooked ham
2012/8/14
In this study, culture-dependent and culture-independent approaches were used to reveal the microbial diversity and dynamic changes occurring in sliced vacuum-packed cooked ham after high pressure pro...
Process optimisation of vacuum drying of onion slices
dehydratation optimum value Allium response surface methodology
2014/2/25
Dehydration of untreated and pre-treated onion slices under vacuum was optimised using the response surface methodology. The effects of the drying temperature (50–70°C), slice thickness (1–5 mm), and ...
板栗真空爆壳特性影响因素的试验（Experiment on Factors Influencing Chestnut Vacuum Shelling Performance）
板栗 真空爆壳 影响因素 试验
2010/12/29
采用自制的板栗真空爆壳装置，对影响板栗真空爆壳特性的因素进行了试验研究。试验结果表明，板栗大小、形状对真空爆壳影响显著；爆壳率随绝对压力的降低而增大，爆壳温度的升高和爆壳时间的延长以及在适当温度下对板栗进行预热处理，可有效提高爆壳率。板栗真空爆壳的适宜板栗和合理工艺条件为：板栗大小7.5～10.0 g/个，半球形；预热温度80℃，预热时间40min；绝对压力2kPa，爆壳温度80℃，爆壳时间...
地黄真空红外辐射干燥过程中梓醇降解动力学研究（Degradation Kinetics of Catalpol in Rehmanniae during Vacuum Infrared Radiation Drying）
地黄 梓醇 真空红外辐射干燥
2010/12/29
以地黄为真空红外辐射干燥试验的原料，在确定地黄中梓醇提取方法为超声+冷浸工艺的基础上，进行了干燥过程中梓醇降解动力学研究。结果表明：地黄真空红外辐射干燥中梓醇降解动力学不符合零级和一级反应动力学。通过对一级反应动力学方程引入一个与辐射板温度有关的参数gT，并假设降解速率参数k符合Arrhenius方程，建立了地黄中有效成分梓醇在真空红外辐射干燥过程中的降解动力学模型方程，验证结果表明，该方程模拟效...