Results 61 to 70 of about 29,642 (234)
Rare Metals, EarlyView.ABSTRACT The limited osteogenic capacity of magnesium phosphate cement (MPC) has constrained its biomedical applications, underscoring the necessity to develop MPC with enhanced physical properties and bone‐forming capabilities. In this study, a multifunctional MPC system was developed by incorporating zoledronic acid‐loaded near‐infrared (NIR ...
Bin Wang +8 more
wiley +1 more source
The simulation of Madden-Julian Oscillation and the optimal forecast error analysis [PDF]
, 2016 热带季节内振荡（在大气中以Madden-JulianOscillation为主，以下简称MJO），是全球季节内尺度预报的最主要信号来源，在天气气候系统的预报中起着非常重要的作用。作为目前发现的全球最强的季节内准周期信号，国内外普遍认为MJO的预报是联系数值天气预报和季节预报的桥梁，能够填补中期预报与短期气候预测之间的延伸期预报时段的“缝隙”。自20世纪70年代Madden和Julian提出以来，MJO现已在国际上获得了广泛关注，其机理研究和预报开展已经成为了全球气候研究的热门方向之一 ...
李晓静
core
Rare Metals, EarlyView.ABSTRACT The sluggish kinetics of the oxygen reduction reaction (ORR) necessitate developing oxygen electrodes with enhanced electrocatalytic activity for practical zinc–air battery applications. In this study, an iron‐doped copper sulfide electrocatalyst (CuFeNS‐PNC) anchored on metal–organic framework‐derived carbon substrates was designed, featuring
Taichong Chitboonyakasem +4 more
wiley +1 more source
The mechanism of BaP and DDT co-exposure induced DNA damage via MAPK signal pathway [PDF]
, 2016 【目的】 苯并(a)芘(benzo[a]pyrene，BaP)是多环芳烃类化合物的典型代表之一，于各种环境介质中广泛存在，具有很强的致癌性，被国际癌症研究机构列为1类致癌物。滴滴涕(2，2-bis(4-chlorophenyl)-1，1，1-trichloroethane，DDT)曾是生产及使用范围最广的一类有机氯农药，在环境中非常难于降解，具有高亲脂性，可以对哺乳动物的肝脏、肾脏、神经等系统造成损害。BaP和DDT常共存于环境并可通过食物链的生物放大作用富集于人体，危害人类健康。因此 ...
刘敏
core
Rare Metals, EarlyView.ABSTRACT This study introduces novel nonequiatomic TiZrCoCrMoCux (x = 0, 5, 10; at%) medium‐entropy alloys (MEAx) tailored for orthopedic implants, synergistically combining the biocompatibility of Ti‐based alloys, the wear resistance of CoCrMo alloys, and the antibacterial/osteogenic attributes of Cu. The alloy's microstructure, mechanical properties,
Hang Yu +9 more
wiley +1 more source
精炼车间过滤机的自动控制系统设计Design of automatic control system for filter in refining workshop
Zhongguo youzhi叶片过滤机是精炼车间脱色工段中非常关键的设备，设备前端后续的工艺阀门很多，有很多操作步骤和时间节点控制阀门的开启和关闭，操作复杂烦琐。为简化人工手动操作的烦琐性及为更多单机系统控制提供技术参考，以立式叶片过滤机为例，采用PLC和触摸屏的方式构建自动控制系统，控制叶片过滤机的单机运行和切换控制。自动控制系统的CPU采用西门子S7-1214C DC/DC/Rly，HMI采用西门子KTP1200触摸屏，并采用西门子TIA PORTAL ...
秦忠凯1，李亭亭1，刘宝友1，赵向军2 QIN Zhongkai1, LI Tingting1, LIU Baoyou1, ZHAO Xiangjun2
doaj +1 more source
Rare Metals, EarlyView.ABSTRACT Low conductivity, slow ion‐diffusion, and limited reactive sites are common problems in electrocatalysts and electrode materials. In this study, a complex NiTe–CoTe heterojunction with abundant Te vacancies embedded in N, P, and F co‐doped hollow carbon nanorods (NiTe1−x–CoTe1−x/NPFC) was fabricated via a simple ionic liquid‐assisted ...
Mingjie Yi +7 more
wiley +1 more source
Jixie chuandong, 2015 <正>杭州娃哈哈科技有限公司继承了二十多年来娃哈哈在饮料机械装备开发、技术改造、系统集成应用方面的深厚经验,进入智能装备研发制造领域,在研究机器人系统集成应用的同时,从事工业机器人,特别是专用机器人本体的研究和制造。科技公司致力于高端机电装备的开发与产业拓展,重点开发与制造高端节能电机、伺服驱动器、工业机器人等产品,提供完整的系统集成应用方案。目前,科技公司拥有硕博学位研究人员99人,高级工程师27人;申请专利22项。
doaj +2 more sources
Research on the Antidepressive Mechanism of Chaiyuwendan Decoction Based on the Endogenous Cannabinoids system [PDF]
, 2016 目的： 1.观察柴郁温胆汤抗抑郁大鼠模型的药理效应； 2.从内源性大麻素系统探讨柴郁温胆汤抗抑郁的作用机制。 方法： 实验分两部分进行。 1.柴郁温胆汤抗抑郁大鼠模型的药效学实验：实验采用慢性轻度不可预见性应激21天复制大鼠抑郁模型。实验动物分为正常组、模型组、柴郁温胆汤组及氟西汀组，给药21天。观察大鼠体重变化，根据旷场实验和糖水消耗实验观察抑郁模型大鼠的行为学变化；采用Elisa法检测大鼠血清中5-HT、DA、ACTH、CORT的含量；采用酶法检测血清中TG、T-CHO、HDL-C、LDL ...
王宏国
core
Rare Metals, EarlyView.ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang +4 more
wiley +1 more source