等浓度

The effects of monomer concentration, initiator, reaction temperature and time on copolymerization were studied.

考察了单体浓度，引发剂浓度，反应温度和时间等对共聚反应的影响。

The result showed NaOH was the reasonable agent for changing pH value of cornhusk hydrolysate, and cornhusk hydrolysate could be preserved in the below conditions: pH value is pH4.0 and the sugar concentration of corn hydrolysate was from 80g/L to 160 g/L, multicomponent hydrolysate could be deposited within 48 h at the room temperature (20℃) or the low temperature (4℃) and must be preserved within 48~120 hours at the low temperature (4℃) from harmful fermentation by microorganism.

通过温度、pH、梯度总糖浓度以及调pH试剂等因素对玉米皮水解糖液存放过程中总糖浓度变化趋势的影响进行深入研究，实验结果表明：选取NaOH作为调pH试剂比较经济，且选择在80~160g/L、pH4.0条件下存放可较好保存糖液品质，确定出在0~48h范围内可选择低温(4℃)至室温(20℃)条件下存放，而48~120h范围内只能选择低温存放(4℃)，室温条件下较长存放时间的糖液易被环境微生物发酵利用掉，为玉米皮水解糖液的短期存放提供一定的帮助。

The research results have been shown that the recovery of metal tin and the purity of products are affected mostly by the reaction temperature, concentration of acid and cupric sulfate, etc.

研究结果表明：反应温度、酸浓度、 CuSO4浓度等因素对金属回收率和回收产品的纯度有很大影响。

Furthermore, this paper explored a new feasible process of cyanide recovery,investigated the effect of time, concentration of H2SO4 and temperature on the elution of cyanide and zinc in the process of first stage elution, and discussed the effect of time,concentration of ammonia water, temperature and ultrasonic on the elution of copper in the second stage elution.

另外，本实验探索出一种可行的回收氰化物新工艺，在硫酸解吸过程中，研究了硫酸解吸的时间、浓度和温度因素对氰和锌的解吸率的影响；在氨水解吸实验中探讨了时间、温度、浓度、超声波等因素对铜解吸率的影响。

The effects of initial concentration of methylorange ,pH value of solution, concentration of Cl~- and aerating oxygen or not on photocatalytic degradation rate of methylorange were investigated with anatase TiO_2 as catalyst under normal daylight lamp.

以锐钛矿型TiO2为光催化剂，以普通日光灯为激发光源，考察了甲基橙的初始浓度、溶液pH值、Cl-的浓度以及通氧与否等条件对甲基橙光催化降解速率的影响。

Aiming at the questions such as low grinding concentration,thick fineness of iron ore concentrate and high grade of tailing caused by the wet pre-selecting process before grinding,through the check of the flow and the results of small-scale test,puts forward the improved measures such as increasing grinding concentration,adding demagnetizer,screening the undersize first then floating,etc.

针对磨前湿式预选工艺造成的磨矿浓度降低、铁精矿粒度变粗、尾矿品位偏高等问题，通过流程考查和小型试验研究，提出了提高磨矿浓度、加设脱磁器、对筛下物料进行先筛分后浮选等改进措施。

Consequently the diathermancy was strengthened, the effect of heat transfer was improved and the flow and combustion process in the boiler has become much better. First, in this thesis the burn characteristic of the rubbish and the process of combustion in the chain boiler has been studied. A series of mathematic model has been given. This thesis carefully introduced the principle and formula of the turbulent flow model、two-equation model、radiation model、dispersed phase model and standard wall function method. The software FLUENT has been applied to simulate the temperature、pressure、velocity and mass fraction of species in the boiler furnace and stokehole. The analysis and the comparison have been done. The calculation results indicate agreement with the fact and the studies both here and abroad.

首先，本文针对SZL10-1.25-MJ造纸垃圾焚烧锅炉，结合其燃料的特性，对垃圾的燃烧特性以及层燃炉中垃圾的焚烧过程进行分析；给出一套完整的垃圾锅炉炉内传热数学模型，并分别详细阐述了湍流流动模型、双方程模型、辐射传热模型、离散相模型及标准壁面函数的原理及计算公式；借助于Fluent软件平台对炉膛内的温度场、速度场、组分浓度场及炉膛出口的温度分布、速度分布、组分浓度分布等进行数值模拟，分别从定性和定量的角度与实际情况进行了比较，得到了较满意的结果；模拟结果与国内外的很多研究能较好符合。

The instrumental parameters and the conditions of measurement such as the concentration of acid and tin dichloride were investigated in detail.

指出了载气流速、酸浓度和氯化亚锡浓度等因素对检测结果的影响，并对各种影响因素进行优化。

A nonlinear regression is adopted to analyze the changes of plasma vitellogenin concentration in crucian carp via the environmental pollutant exposure concentration, and the concentration-response relationship is determined for the single chemical of estradiol (E2), ethynylestradiol (EE2), bisphenol A, 4-tert-octylphenol, and that of the mixed compounds at equipotent concentrations, the mixture being tested using a fixed-ratio design.

通过对鲫鱼血浆卵黄蛋白原含量的相对变化和暴露浓度的非线性回归分析得出17α-乙炔基雌二醇(EE2)、17β-雌二醇(E2)、双酚A、辛基苯酚及其等毒性固定浓度比例混合物产生雌激素效应的剂量－反应关系；应用相加作用数学模型根据单个化合物的数据预测混合物效应。

The fragment of amplification was 247bp in size using the external primers.After optimization of the ratio of the internal to the external primers,concentration of dNTP and Mg2 +,temperature and time of reaction,a RT-LAMP method for specific detection of CDV was established successfully.

通过对反应条件中内、外引物的比例、dNTP浓度、Mg2+浓度、反应温度和时间等条件逐一优化，成功建立了犬瘟热病毒的RT-LAMP检测方法。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。