搜索结果: 1-15 共查到“工学 derivative”相关记录22条 . 查询时间(0.074 秒)
Fully Bio-Based Polyhydroxyurethanes with a Dynamic Network from a Terpene Derivative and Cyclic Carbonate Functional Soybean Oil
fully bio-based non-isocyanate?polyurethanes dynamic covalent bond exchange self-healing recyclability shape memory
2023/12/18
Polyhydroxyurethanes (PHUs), polyurethanes with excellent properties, are cured without poisonous isocyanate. The carbamate groups in the structure can undergo bond exchange in the presence of amino g...
Design, synthesis and biological evaluation of dehydroabietic acid derivative as potent vasodilatory agents
Dehydroabietic acid Vasodilation Inflammation Endothelial nitric oxide synthasec GMP
2023/11/30
Using dehydroabietic acid as the lead compound for structural modification, 25 dehydroabietic acid derivatives were synthesized. Among them, compound D1 not only showed the strongest relaxation effect...
学术报告：Development of an ultra-efficient hydrogen peroxide generation and OH radical generation system using a photocatalyst with metal ions immobilized atomically on a PCN derivative
PCN derivative OH radical photocatalyst metal ions
2023/7/19
Development of an ultra-efficient hydrogen peroxide generation and OH radical generation system using a photocatalyst with metal ions immobilized atomically on a PCN derivative.
DETECTING SUB-SURFACE SOIL DISTURBANCE USING HYPERSPECTRAL FIRST DERIVATIVE BAND RATIOS OF ASSOCIATED VEGETATION STRESS
Hyperspectral Vegetation Soil Radiometry Spectral Environment Analysis Detection
2015/12/30
Previous studies conducted under controlled laboratory and controlled field conditions have demonstrated the ability of hyperspectral techniques to detect vegetation stress associated with elevated le...
Effective field theory for hydrodynamics: thermodynamics, and the derivative expansion
Effective field theory hydrodynamics thermodynamics derivative expansion
2011/8/19
Abstract: We consider the low-energy effective field theory describing the infrared dynamics of non-dissipative fluids. We extend previous work to accommodate conserved charges, and we clarify the mat...
An Assessment of the Derivative Thermal Analysis of Grey Cast Iron
DTA diagram Chemical composition Hardness Tensile strength
2011/3/11
The study presents a method used for assessment of the consistency of results obtained by measurements and calculated by computer from a graph of Derivative Thermal Analysis (DTA) to determine the che...
Microwave Assisted Synthesis and Characterization of Acetate Derivative Cassava Starch
Microwave Assisted Synthesis Characterization of Acetate Derivative Cassava Starch
2010/11/8
The aim of this study were to observe the possibility of application of microwave heating in the acetylation of cassava starch and to study the physicochemical properties of the starch acetate obtaine...
Derivative thermo-analysis application to assess the cooling rate influence on the microstructure of Al-Si alloy cast
thermo-analysis assess cooling rate microstructure Al-Si alloy cast
2010/8/12
Copper and magnesium addition enable to perform precipitation hardening of the multicomponent aluminium alloys with silicon, by precipitation of the Al2Cu or Mg2Si phase particles. However copper addi...
Structure investigation of the Al-Si-Cu alloy using derivative thermo analysis
Aluminium alloys Mechanical properties Thermo analysis
2009/12/14
Purpose: This research work presents the investigation results of derivative thermoanalysis performed using the UMSA device (Universal Metallurgical Simulator and Analyzer). The material used for inve...
Ota-C Based Proportional-Integral-Derivative (PID) Controller and Calculating Optimum Parameter Tolerances
PID controller operational transconductance amplifier optimum parameter tolerances
2009/7/27
Proportional-integral-derivative (PID) controllers are one of the most important control elements used in the process control industry. In practice, operational amplifiers are generally used in analog...
Derivative thermo analysis of the Al-Si cast alloy with addition of rare earths metals
Aluminium alloy Cerium Lanthanum Derivative thermo-analysis UMSA
2011/4/2
In this paper the dependence between chemical composition, structure and cooling rate of Al–Si aluminium cast alloy was investigated.
For studying of the structure changes the thermo-analysis was c...
Derivative thermo analysis of the Al-Si cast alloy with addition of rare earths metals
Aluminium alloy Cerium Lanthanum Derivative thermo-analysis UMSA
2011/4/8
In this paper the dependence between chemical composition, structure and cooling rate of Al–Si aluminium cast alloy was investigated.For studying of the structure changes the thermo-analysis was carr...
Method of thermal derivative gradient analysis (TDGA)
Solidification Crystallization Thermal derivative gradient analysis
2011/4/1
In this work a concept of thermal analysis was shown, using for crystallization kinetics description the temperature derivatives after time and direction. Method of thermal derivative gradient analys...
Examples of thermal derivative gradient analysis (TDGA) application
Crystallization Thermal derivative gradient analysis AlSi CuSn Cast iron Cast skeleton
2011/4/1
The study presents the possibility of TDGA method based on multipoint measurement of temperature during crystallization of two test castings poured from different temperature. Sample castings have co...
Microwave Assisted Synthesis and Characterization of Acetate Derivative Cassava Starch
Microwave Assisted Synthesis Acetate Derivative Cassava
2016/5/31
The aim of this study were to observe the possibility of application of microwave heating in the acetylation of cassava starch and to study the physicochemical properties of the starch acetate obtaine...