吸热过程

MDSC曲线表明吸热过程是可逆的，它系由NC和部分分解凝聚相产物的混合物的固液相变所引起。

The experimental results show that the endothermic process in the MDSC curve is invertible . It is caused by the phase change from solid to liquid of the mixture of initial NC and partly decomposed products in condensed phase .

结果表明，在稀溶液中3种树脂吸附苯胺都符合Langmuir和Freundlich模型，其中AM-1和NJ-8对苯胺的吸附是一个吸热过程；

The results showed that the adsorption for aniline in aqueous solution on the three adsorbents was fitted for Langmuir and Freundlich equations , and the adsorption for aniline on AM-1 or NJ-8 proved to be an endothermic process .

CO2跨临界循环吸热过程换热性能理论分析

Theoretical analysis of heat transfer performance for heat absorbing process in trans-critical carbon dioxide cycle

吸附焓变化（ΔH）值为4.16kJ/mol说明这一过程是吸热过程。

The changes of adsorption enthalpy value (Δ H ) of 4.16 kJ / mol indicated the endothermic nature of the adsorption process .

热力学参数表明，改性玉米秸秆对Cr（Ⅵ）的吸附是一个自发吸热过程，升高温度有利于吸附的进行。

The thermodynamic parameters showed that the adsorption of Cr ( VI ) onto MCS was an spontaneous and endothermic process .

热力学计算表明：在298-318K范围内，HGA对废水中氨氮的吸附是一个自发的吸热过程。

Thermodynamic analysis suggested that the adsorption of HGA to ammonia was spontaneous and endothermic .

Cr（Ⅲ）的氧化量和氧化速率随着反应体系温度的升高而增加，且高温时Cr（Ⅲ）氧化量的增幅大于低温时的，表明此反应为吸热过程。

The amount and speed of Cr (ⅲ) oxidized increased as the temperature increased . The effect of temperature on Cr (ⅲ) oxidized in high temperature was larger than that in low temperature .

PCB的结构特征对于回流温度曲线及其关键指标具有显著的影响，对PCB的吸热过程和回流焊炉的热传递过程进行了理论分析，并用大量的实验样本进行了实验研究。

PCB structure characteristics had distinct effect on reflow profile and its key specific . After analysis in theory for absorbing thermal of PCB and thermal transfer in reflow oven , were conducted many experiments using PCB samples .

热力学研究表明，Zr-Al-Ce吸附剂对氟离子吸附过程为自发、吸热过程。

The thermodynamic studies indicated that the adsorption process was spontaneous and endothermic .

结果表明，这两种海藻粉对重金属离子的吸附曲线基本符合Langmuir吸附模型，其吸附容量受温度的影响，马尾藻和海带粉对Cu~（2+）的吸附均为吸热过程；

It indicates that these two algaes absorption curves clearly accord with the Langmuir adsorption model . Temperature affects the algaes ' adsorption capacity . The processes of Sargassum fusiforme and Laminaria japonica adsorption Cu2 + are endothermal .

在基于Kelvin的线热源理论的基础上，对土壤原始温度场和运行吸热过程的温度场进行了模拟，分析了盘管周围土壤温度场的变化规律。

Basing on Kelvin Line-Source theory , the ground temperature field in original state and endo-thermic process is simulated under Ground source heat pump intermittent operation , and the changing rule of temperature field around the tube is analyzed .

凹凸棒石对水溶液中的阳离子桃红FG和亚甲基蓝的吸附是一个吸热过程，而对直接耐酸大红4BS的吸附是放热过程。凹凸棒石吸附水溶性染料的热力学研究

The adsorption of cationic pink FG and methylene blue onto purified palygorskite is an endothermic processes , and direct acid proof scarlet 4BS is exothermic in nature . THERMODYNAMICS STUDY OF ADSORPTION OF WATER SOLUBLE DYESTUFFS ONTO PURIFIED PALYGORSKITE

氨氮在钙型沸石上的吸附是吸热过程，饱和吸附容量是46.29mg/g。

The adsorption of ammonium on Ca-form zeolite was exothermic process . The saturation adsorption capacity of ammonium on Ca-form zeolite was 46.29mg/g .

热力学实验表明吸附过程为自发吸热过程。

Thermodynamic studies showed that sorption of heavy metals were spontaneous and endothermic in nature .

热力学参数计算结果表明，吸附过程为自发的吸热过程。

The thermodynamic parameter calculation results indicate that the adsorption process is a spontaneous endothermic process .

吸附是非自发吸热过程，升温有利于吸附。

The higher temperature is advantageous to the adsorption . The adsorption is an endothermic process .

烃类催化裂解反应是强吸热过程，而金属氧化物和烃类的氧化反应是放热反应。

The catalytic cracking of hydrocarbons to olefins is an endothermic reaction , and their oxidation is exothermic .

吸附容量随温度的增加而增大，吸附过程为吸热过程。

Adsorption capacities decrease with the increases of temperatures , indicating that the adsorption is an exothermic process .

1,2,4-酸的吸附为吸热过程，而2-萘酚的吸附为放热过程。

Adsorption for 1,2,4-acid is an endothermic process in comparison with that for 2-naphthol of an exothermic process .

本文所研究的分子解离反应全部为协同过程，而自由基解离过程都是无势垒的吸热过程。

The three molecular decomposition reactions studied here are all concerted , and the radical reactions all endothermal and barrierless .

底泥对磷的吸附为一吸热过程，温度升高，磷的吸附强度和吸附量增大。

The amount and the intensity of P adsorbed increase with temperature . The adsorption amount decreased with temperature rising .

热力学参数的计算表明，从烯醇式到双酮式构型的转变是一个吸热过程。

The calculation of the thermodynamic parameters shows that the transfor - mation from enol to keto form is endothermic process .

此外，砂质壤土吸附Cd~（2+）时呈现吸热过程，而粘壤土吸附Cd~（2+）时呈现放热过程。

In addition , the Cadmium adsorption processes of the sandy loamy soil was endothermic , however the clay loamy soil 's was exothermic .

另外，借助有限元软件来模拟复合材料在吸热过程中温度及热梯度场的分布情况，对实际生产有一定的参考价值。

Simulated the distributing condition of temperature and heat grads of the compound material by ansys software that is definitely a reference for practice production .

计算还表明，所有脱氢气的反应生成表面烷氧活性中间体，都是吸热过程，随后的脱质子反应是放热过程，而且能垒较低。

All the products of dehydrogenation steps are surface alkoxide intermediates and the reaction are endothermic , and the subsequent deprotonation are exothermic and have lower energy barriers .

其吸附均为吸热过程，吸附热值在20~23kJ/mol范围，吸附表现为表面物理吸附和离子交换作用。

The adsorption heat values range from 20 kJ / mol to 23 kJ / mol. The absorption exhibits both surface physical ( adsorption ) and ion-exchange mechanism .

本文通过在15～40℃范围内的研究首次发现，银杏黄酮苷在不同极性树脂上的吸附过程都应是吸热过程，温度适当升高有利于吸附。

It was firstly found that the process of the adsorption of ginkgo flavonol glycosides on different adsorbents is a endothermic process through study in 15 ~ - 40 # .

当苯甲酸浓度较高时，吸附为吸热过程，体系熵增加，升温有利于吸附。

When the concentration of benzoic acid was high , the adsorption was an endothermal process with the system 's entropy increasing , and the increase of temperature did benefit to the process .

异构化为放热反应，而芳构化为吸热过程，通过该偶合反应可使反应的绝热温度变化幅度变小，使反应容易控制和操作。

The change of adiabatic temperature was small during coupling isomerization with aromatization of hexene-1 , because both reaction heats were counteracted each other , exothermal reaction for the former and endothermic reaction for the latter .

高压下的热测量表明，在这两种金属玻璃的相变过程中存在热量变化，由低压相转变为高压相为吸热过程。

The thermal measurement under high pressure indicated that there existed the thermal change during the phase transition in the two metallic glasses . It was endothermic process from low pressure phase to high pressure phase .