Results 161 to 170 of about 1,579,839 (226)
高压直流电缆绝缘与附件绝缘构成了双层复合绝缘结构,绝缘材料界面的匹配特性是直流输电系统安全稳定运行的重要基础。文中研究了交联聚乙烯(XLPE)和三元乙丙橡胶(EPDM)的电导率性能和材料显微结构对绝缘界面匹配特性的影响,然后研究了复合界面的空间电荷分布特性和电场分布特性,以及材料改性对绝缘匹配特性的影响。实验结果表明,XLPE和EPDM电导率特征参数(材料系数A,电场依赖系数B,活化能φ)的差异是绝缘匹配特性不理想的重要因素,复合XLPE/EPDM界面电场畸变率最高可达209.49 ...
戴明浩 +4 more
doaj
[Study on macro- and micro-mechanical properties of bone regenerative tissue during the healing process of spinal intervertebral fusion devices]. [PDF]
Fu R, Zhang Y, Zhu X, Zhang H.
europepmc +1 more source
ABSTRACT Electrocatalytic CO2 reduction reaction (CO2RR) represents a pivotal pathway for the promotion of carbon neutrality and the preparation of highly valuable chemicals. To improve the product selectivity and catalytic efficiency of CO2RR, single‐atom catalysts (SACs) offering highly efficient atomic utilization rates and adjustable electronic ...
Xiaorui Liu +7 more
wiley +1 more source
[Isolation, identification, and metabolic characterization of a <i>Veillonella parvula</i> isolated from supragingival plaque in a patient with rampant caries]. [PDF]
He Z, Zhang H, Chen Z, Xing H, Pan J.
europepmc +1 more source
ABSTRACT Silicon carbide (SiC) is an ultra‐hard ceramic material and is intrinsically difficult to sinter. Pressureless solid‐state sintering (PS) typically requires high temperatures exceeding 2200°C and a prolonged heating cycle, whereas liquid‐phase sintering lowers the processing temperature at the expense of high‐temperature mechanical performance.
Meicen Fan +5 more
wiley +1 more source
[Research on flow characteristics of dual-outlet centrifugal disk blood pumps]. [PDF]
Lian Q, Xiao Y, Xiao Y, Cao Z, Cui G.
europepmc +1 more source
ABSTRACT The separation of light olefins is a crucial process in the petrochemical industry, and developing advanced adsorbent materials is very significant. Aluminum (Al) cluster‐based heterometallic frameworks possess great application prospects but have rarely been investigated for separation applications.
Song‐Yan Sui +4 more
wiley +1 more source
[Characteristics of Flow and Heat Transfer in the Upper Respiratory Tract of Humans Under Nasal Obstructive Conditions]. [PDF]
Pan H, Xie J, Gao W, Chen W.
europepmc +1 more source
ABSTRACT Ensuring uncompromised safety across interconnected domains is vital for global societal sustainability. Metal–organic framework (MOF)‐based nanocomposites, owing to their intrinsically tunable structures and broad functional versatility, represent a powerful class of materials for safety‐related engineering.
Rongfu Peng +6 more
wiley +1 more source
ABSTRACT Low‐temperature performance degradation limits lithium‐ion batteries (LIBs) in extreme climates and specialized applications. Electrolytes govern Li+ transport and interfacial reactions, whereas their solvation chemistry controls ionic conductivity, desolvation kinetics, and interphase stability.
Yuqing Chen +7 more
wiley +1 more source

