Results 31 to 40 of about 93,262 (141)
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT The escalating severity of global environmental pollution necessitates the development of sustainable and efficient adsorption materials. Nanocellulose (NC), sourced from the most abundant natural polymer on earth, has shown great potential in this field due to its renewability, biodegradability, and exceptional nanoscale properties.
Yaqian Yu +5 more
wiley +1 more source
Huli yanjiu, 1999 血压计橡皮气袋除用于测量血压外，还可用于临时加压输血中。方法为：于输血前将橡皮气袋紧裹于血袋的外面，准备好后，将血袋挂于输液架上。检查针柄端连接是否牢靠。需加压输血时，先阻断橡皮气袋连接血压计的通气管，然后充气至一定压力（勿过度充气），见滴速加快即可...
李晓敏
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Solar‐blind ultraviolet (UV) photodetectors (SBPDs) play a critical role in applications including UV communication and fire warning systems. Gallium oxide (Ga2O3) has emerged as a promising material due to its wide bandgap and low cost, but suffers from high dark current and slow response speed caused by oxygen vacancy (VO) defects. This work
Yuhao Lin +14 more
wiley +1 more source
Gaoya dianqi, 1997 【问】定开距和变开距压气式SF6灭弧室各自的特点是什么? 【答】定开距压气式灭弧室的特点是: （1）开距小,电弧电压低,电弧能量小,对提高开断电流较为有利; （2）压气室离弧区较远,触头间的绝缘强度较高,触头开距可稍小一些; （3）气压室内气体的利用率不如变开距的结构。为了保证足够的气吹时间,压气室的总行程就得增大; （4）压气室内的气体从喷咀内腔向外排出,喷咀的形状和尺寸受到一定的限制。
涟生
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Journal of Adolescence, Volume 98, Issue 5, Page 1715-1736, July 2026.ABSTRACT Introduction Following rapid iterations in media technologies, Chinese millennials (born between 1980 and 1995) find themselves in a paradoxical state where digital saturation exists alongside fatigue, making them central practitioners of digital minimalist behavior.
Chao Zhang, Yinze Hao, Jingwen Li
wiley +1 more source
Gaoya dianqi, 2016 文中以SF6/N2混合气体作为比较,研究了CF3I/N2混合气体中绝缘子在工频电压和正、负极性雷电冲击电压下的沿面闪络特性。结果表明:在0.10.3 MPa下,CF3I/N2混合气体中绝缘子的工频闪络电压和雷电冲击闪络电压均随气压升高而增大;在较低气压下,CF3I/N2混合气体中绝缘子的负雷电冲击闪络电压比正极性下要低,而当气压高于某临界值时,负极性下闪络电压又会高于正极性;绝缘子在含30%CF3I气体的CF3I/N2混合气体中的绝缘性能基本介于含20%/30%SF6气体的SF6 ...
张辉, 肖登明, 赵谡, 李冰
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, 2018 本发明涉及高压气体碎化铁矿石试验装置，包括：钢桶、第一法兰、第二法兰、密封法兰、防爆片、环形板、连杆和高压气罐。钢桶的两端分别设置有第一法兰和第二法兰；密封法兰设置在第二法兰上；防爆片设置在第二法兰与密封法兰之间；环形板设置在第二法兰和钢桶之间，环形板通过连杆与第二法兰连接，使环形板与第二法兰之间形成充气空腔；高压气罐(未显示)，通过高压输气管与钢桶1连接。本发明实现了利用高压气体流体高密度和低黏度的特性，使其通过铁矿石本身的节理或微裂纹渗透到铁矿石内部，而后通过突然卸压 ...
李世海 +5 more
core +2 more sources
Enhanced Magnetocaloric Effect in Tb‐Co‐Ni Magnets via Chemical Pressure
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Magnetic refrigeration materials are significantly needed in versatile modern industries, including scientific research, aerospace, and health care, due to their potential applications in gas liquefaction and storage. Herein, a significantly enhanced magnetocaloric effect with a suitable operation temperature range of 53–114 K and a giant ...
Lei Xi +11 more
wiley +1 more source
Wafer‐Scale Amorphous g‐C3N4 With Broadly Tunable Dielectric Properties for 2D Electronics
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Two‐dimensional (2D) semiconductors are regarded as promising candidates for next‐generation electronics due to their superior electrostatic control; however, their performance is severely constrained by the lack of suitable dielectric materials.
Binyin Gao +13 more
wiley +1 more source
Gaoya dianqi, 2016 采用混合气体是解决气体开关设备低温运行的有效途径之一。文中基于真实气体模型,建立SRK状态方程的迭代形式,给出了SF6与CF4气体压力值在0.11 MPa,温度在223323 K范围内压缩因子曲线,分析了温度与压力对压缩因子的影响,给出了不同压力与温度下,SF6与CF4真实气体与理想气体压缩因子的偏离情况,确定混合气体的压缩因子的混合规则,分析了温度与压力对压缩因子的影响,确定混合气体的混合规则,获得了SF6、CF4及混合气体饱和蒸汽压与等密度曲线,得到了混合气体在不同使用条件下的充气与补气方案 ...
钟建英 +4 more
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