Results 21 to 30 of about 25,615 (125)
紫苏籽油的抗衰老作用及机制探究 Anti-aging effect and mechanisms of perilla seed oil
旨在为紫苏籽油的开发利用提供理论依据,以D-半乳糖(500 mg/kg)在小鼠颈背部皮下连续注射4周建立小鼠衰老模型后,将小鼠随机分为模型对照组(生理盐水)、阳性对照组(维生素C 200 mg/kg)和紫苏籽油高(5 mL/kg)、中(2.5 mL/kg)、低(1.25 mL/kg)剂量组,连续灌胃4周,记录小鼠体质量及行为变化,通过转棒法和金属网法检测小鼠的协调运动能力,测定小鼠主要脏器(脑、胸腺、脾脏)指数以及小鼠血清和脑组织匀浆中谷胱甘肽过氧化物酶(GSH-Px)活力和丙二醛(MDA)含量 ...
王荣1,2,3,王娜娜1,2,3,杨宽1,2,3,刘自群1,秦蓓1,2,3 WANG Rong1,2,3,WANG Nana1,2,3, YANG Kuan1,2,3, LIU Ziqun1,QIN Bei1,2,3
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ABSTRACT This paper examines how governments navigate policy legitimacy during crises through three distinct discursive processes: legitimization, delegitimization, and blame avoidance. Using a sequential mixed‐methods design, the study analyzes Denmark's decision to cull all mink during the COVID‐19 pandemic. The quantitative analysis of 947 newspaper
Olivier Rubin +3 more
wiley +1 more source
在伟大领袖毛主席《鞍钢宪法》和“复电”精神的指引下,在贯彻落实党中央最新战斗号令,开展对敌斗争中、西瓷厂革委会、军宣队领导全厂职工,大力发扬延安精神,“艰苦奋斗”、“自力更生”不向国家要投资、要人,自己动手,土法上马,在短短的二十多天里,就建成一座大型方窑。是贪大求洋还是士法上马?70年,西瓷厂担负着国家许多重点建设工程及国防 ...
西安高压电瓷厂
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The Problem With Problem Load: Reconceptualizing Load in the Multiple Streams Framework
ABSTRACT What happens when policymaking systems buckle under pressure, disrupting consensus and stalling decision‐making? Drawing on the Multiple Streams Framework, we show that the existing concept capturing this stress, Problem Load, has been both misinterpreted and overstretched.
Dana A. Dolan, Nikolaos Zahariadis
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随着我国电力工业的发展,需要更多的高压电器电站电瓷,我们兴建丁一座截面较大的隧道窑,供110千伏以上的大棒型和大套管焙烧用。这座窑建成后于71年10月正式试调,现将试调情况作一简介。
西安高压电瓷厂
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ABSTRACT Wearable sweat sensors face persistent trade‐offs between multiplexed detection, signal stability, and wearing comfort. Here, we present a Janus electronic skin (e‐skin) with dual‐mode functionality, offering both thermal and moisture comfort.
Zhi‐Mei Mu +12 more
wiley +1 more source
【目的】评估门诊高血压患者不同血压控制水平间容量负荷的差异,探讨门诊高血压患者的临床因素对容量负荷的影响,分析门诊高血压患者临床基线特点及降压药物使用情况。【方法】在2017年7月至11月期间,纳入门诊高血压患者共514例。记录患者的临床指标,包括性别、年龄、身高、体质量、高血压年限、血压水平、高血压治疗方案及合并症情况。采用生物阻抗分析仪,检测细胞外液与身体总水比值(ECW/TBW),对人体容量负荷进行评估,全身ECW/TBW≥0.39定义为高容量负荷。分析各种临床因素对高血压患者容量负荷的影响 ...
罗艳婷 +3 more
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ABSTRACT The use of Ti6Al4V alloy in dental implantation is constrained by its high elastic modulus and biological inertness, which lead to delayed osseointegration and a high failure risk. Additionally, its chemical incompatibility with hydroxyapatite (HA) impedes the development of stable bioactive composites.
Shangyong Zuo +8 more
wiley +1 more source
Inverse Thermal Softening Behavior in a High‐Entropy Alloy Under Various Strain Rates
ABSTRACT Although face‐centered cubic high‐entropy alloys (HEAs) have received extensive attention and in‐depth research, most existing studies focus on single temperature or strain rate conditions, lacking systematic investigations into deformation mechanisms under extreme thermomechanical coupling environments.
Zhi Wang +6 more
wiley +1 more source
作为高压、超高压输变电设备和输电线路外绝缘至关重要的高压绝缘子和高压电器配套用的电瓷产品,近年来国外的发展势头很大,各种特高压和超高压等级的高档电瓷产品,纷纷投入市场。
靳宝丰
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