低温环境

低温环境下的人-机工效问题冷轧机机型与板形调控能力分析

Man & machine Performance in Cold Environment SHAPE CONTROL PERFORMANCE OF COLD ROLLING MILL

噬菌体在微生物种群大小和群落结构的调节、营养物质循环等方面起着重要的作用，这在物种多样性较少、食物链较短的低温环境中更为显著。

Phages play important roles in the regulation of microbial population , community structure , nutrient cycling , etc. This is more significant in cold environment with less biodiversity and truncated food chain .

基于PLC的低温环境试验室控制系统

PLC based Control System for Cryogenic Environmental Test

低温环境中~（210）Pb的迁移性综述

The migration of ~ ( 210 ) Pb in low temperature environment

低温环境下GIS的保护

GIS protection in low temperature

因为有少数关键的DNA结构发生改变，所以可以推出猛犸象的血红蛋白可以在低温环境下把氧气输送到身体的各个部位。

Due to just a few key structural changes , mammoth hemoglobin can release oxygen more readily at cold temperatures .

基于Bayes的火箭弹高、低温环境试验方法

High and Low Temperature Environment Test Method of Rockets Based on Bayes

LW系列SF6断路器在低温环境下的可靠运行

LW Series SF_6 Circuit breaker safe operate at bitter cold situation

低氧低温环境大鼠睡眠剥夺后血清TNF-α和IL-6水平与大脑病理变化相关性研究

A Related Research on the Changes of TNF - α and IL-6 in Rat 's Blood Serum and Brain Pathology with Sleep Deprivation under Hypoxia and Hypothermia

抑制Bax表达对减轻低温环境颅脑损伤细胞凋亡、提高疗效有着潜在的治疗意义。

Inhibition of Bax expression in low-temperature environment is conducive to reduce apoptosis in brain injury that has the potential value to improve efficacy of treatment .

首先，对PVDF涂层建筑膜材进行拉伸试验，测定其在常温和低温环境下膜的拉伸力学性能参数。

Firstly , tensile experiment of PVDF-coated architecture membrane was conducted to obtain its tensile mechanical parameter under normal and low temperature environment .

采用聚乙二醇（PEG）先与钙反应后，再与磷源溶液反应，在低温环境中制得无定形磷酸钙。

A stable amorphous calcium phosphate ( ACP ) was prepared by a wet chemical method at a low temperature in the presence of poly ( ethylene glycol )( PEG ) .

低于210K，FBG的温敏系数变小，这将限制低温环境下FBG作为温度传感器的使用。

Below 210 K , the temperature sensitivity became smaller which seriously limits the application of FBG as temperature sensor in cryogenic environment .

这些主效QTL在低温环境下对水稻秆长、穗长、穗粒数和穗抽出度有增效作用，与水稻耐冷性有一定的相关性。

These QTLs cause the increase of culm length , panicle length , spikelets per panicle and panicle exsertion under low temperature , showing that these QTLs are correlated with cold tolerance .

锯缘青蟹（Scyllaserrata）低温环境下生理生化的变化对于理解其低温适应具有重要的意义。

Physiological and biochemical changes of Scylla serrata under low temperature condition play an important role in understanding the process of low temperature adaptation .

通过试验测试了13x型分子筛在高真空低温环境下，对水汽的吸附特性。

The content of this paper is about the 13X 's adsorption and desorption characteristics at high vacuums and low temperatures to the water vapor .

对于应用在低温环境的铁素体螺栓材料，推荐采用ASTMA194等级4或等级7螺母。

For ferritic bolting materials intended for service at low temperatures , ASTM A194 Gr.4 or Gr.7 nuts are recommended .

用HD固化剂配制的胶粘剂能在-5℃的低温环境下48h内固化环氧树脂，体系具有合适的适用期，固化产物具有良好的综合性能。

The epoxy resin adhesive with the modified hardener HD can harden under - 5 C within 48h and has an appropriate shelf-life , and the hardening product of the adhesive has good comprehensive performances .

研究结果表明，掺入PAN纤维增加了混凝土的含气量，提高了混凝土的抗拉极限应变、抗弯韧性和断裂能，因而有利于混凝土低温环境下的强度增长和提高了混凝土的抗冻融耐久性。

Results of the investigation indicated that adding PAN fibers into concrete leads to high air content , improves tensile strain limit , flexural toughness and fracture energy , which are beneficial to strength development and durability improvement of concrete at low temperatures .

在宽板拉伸试验中，首次研制和开发了由EVA板、自动环境温度控制系统、自动液氮灌注系统和试样表面温度传感器相结合的低温环境箱。

In the wide plate tensile test , the low-temperature environment box is researched and development firstly which combination of the EVA board , automatic temperature control system , automatic liquid nitrogen irrigation system and temperature measure sensor of the sample surface .

在研究TFT-LCD特点的基础上，提出了加热电路的设计方法以确保机载TFT-LCD在低温环境下启动和工作；

On the basis of study of characteristics of TFT-LCD , some design methods of heating circuit are suggested , to ensure that airborne TFT-LCD can start and work at low temperature using thermal design methods .

在越冬初期二种酶的活性升高，表明二种酶都有在锻炼后提高活性以适应低温环境的能力，SOD和POD以降低对低温的敏感性来防御低温伤害。

Activity of SOD and POD increased in the early winter so that the above two enzyme could enhance their ability to adapt to the environment . SOD and POD reduced their sensitivity to the low temperature to keep plant away from the low temperature injury .

国内外关于PTFE填充改性的报道很多，但文献中绝大部分为在真空环境或低温环境这些单一影响因素下进行研究的，适用于真空低温这种苛刻条件下的研究很少。

At home and foreign the reports on the modification of PTFE filled are many , however , most literature studied under vacuum or low-temperature of the single effect factors , and reports on PTFE composites under harsh conditions such as vacuum and low-temperature are few .

肝脏线粒体的蛋白含量、状态3呼吸和细胞色素C氧化酶活力分别提高了22%、42%和48%，表明在低温环境下肝脏线粒体产热能力的增强是RMR提高的细胞学机制之一；

The protein content , state 3 respiration and cytochrome C oxidase activity of liver mitochondria showed an increase of 22 % , 42 % and 48 % respectively , suggesting the enhancement of thermogenic capacity of liver was one of the celluar mechanisms of the rise of RMR .

方法采用细胞图像分析系统（PIPS-2020），测定离体即刻至15d牙齿在低温环境（10~15℃）和高温（30~35℃）环境下牙髓细胞DNA含量变化值，并对其数据进行统计学分析。

Methods Changes of DNA content in dental pulp cells under lower ( 10 ~ 15 ℃) and higher environment temperature ( 30 ~ 35 ℃) was determined at PMI from 0 to 15d by an Image Cytometry Analysis System ( PIPS-2020 ) . The results were analyzed statistically .

结果表明，在高温和低温环境下，PPES和PPEK及其复合材料均具有很好的弯曲性能，且彼此性能差别不明显，表明其均具有良好的综合力学性能和耐高低温环境性能。

The result indicted that they also had good bend performance under high and low temperature , and the discrimination between them was minor , so they had good integrating mechanics performance and high , low temperature resistant for environment .

通过传热理论计算表明，液氦的损耗量小于技术要求的0.9L/h指标，能够保证超导磁体系统能够在一定的低温环境下长时间的运行。

By calculation of heat transfer theory , the target of less than 0.9L/h of the liquid nitrogen wastage of the system is obtained , and long-time running under the cooled condition for superconducting magnet has been actualized .

空气涡轮制冷车&低温环境试验设备

Air turbine refrigerating machine & a low temperature environment testing equipment

低温环境下长输管道施工的技术保障措施

Technology Support Measures for Construction of Long-distance Pipeline at Low-temperature Environment

低温环境对家兔代谢及心律失常的影响

The effect of low temperature on metabolism and arrhythmia of rabbit