Results 11 to 20 of about 122,388 (119)

狐狸人工授精的研究——新鲜精液子宫内输精试验

open access: yes野生动物学报, 1992
本文报道了狐狸人工授精研究的初步结果。对43只银狐种公狐用手指按摩法采精109次,成功率为89.9%;对12只兰狐种公狐用同样方法采精98次,成功率为82.7%。人工输精日期由发情检测器决定。在阴道电阻值从峰值下降的第一天进行第一次输精。七只母狐连续2—3d每天用新鲜精液进行子宫内人工输精一次,所有母狐均妊娠并产仔,平均胎产仔数为7.85只。输银狐新鲜精液的两只母银狐的胎产仔数分别为8只和7只。输银狐新鲜精液的两只母兰狐分别产下1只和14只属间杂种狐仔(称兰霜狐)。第一次输银狐新鲜精液,然后第二 ...
孔庆松, 刘志平, 方健, 张宪宁
doaj   +2 more sources

肝硬化患者临床输血合理性分析 [PDF]

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2017
【目的】探讨肝硬化病例的临床特征和输血状况并分析其合理性。【方法】自行设计调查表,收集所有新入 院肝硬化病例一般情况、临床特征、血液输注情况,以及吸烟、饮酒等生活行为习惯,并进行随访。【结果】共收集198例肝 硬化病例,其中34.8 %(69/198)的病例在住院期间输注了不同种类的血液品种,合计输血371次,其中52.2%的输血病例 (36/69)在住院期间输注过2种及以上血液。69例输血肝硬化病例中,首次血液输注以治疗和预防为目的的病例分别为 11 例和 58 例;18 例输注红细胞 ...
刘相富   +5 more
doaj   +1 more source

石蜡乳状液潜热输送材料的研究进展

open access: yes, 2012
石蜡乳状液潜热输送材料是由相变石蜡与水乳化而成的悬浮液,具有较大的热容,能量储存密度及输送密度远高于相同温差下的水,因此可以使循环流量大幅降低,从而降低循环能耗,实现节能。根据相变石蜡材料及应用背景不同,分别综述了低温石蜡乳状液潜热输送材料、高温石蜡乳状液潜热输送材料的研究现状。指出了石蜡乳状液潜热输送材料在导热性能和稳定性等方面存在的共性问题,并探讨了解决措施:纳米颗粒强化传热是提高其导热性能的有效方法 ...
肖睿, 冯自平, 邹得球
core   +5 more sources

Deciphering Solvation Chemistry for Low‐Temperature Lithium‐Ion Battery Electrolytes: Mechanisms, Strategies, and Beyond

open access: yesRare Metals, Volume 45, Issue 11, November 2026.
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

Three‐Stage Fluid‐Assisted Dual‐Mode Janus E‐Skin for Thermally Comfortable Multiplexed SERS Sweat Analysis and Strain Monitoring

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
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

Colloid‐Mediated Surface Reconstruction Through High‐Valence Element Integration Enables Stabilized Oxygen Redox and Fast Interfacial Kinetics in Li‐Rich Cathodes

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Lithium‐rich manganese‐based cathodes (LRM) deliver high discharge capacities beyond 250 mAh g−1, but their practical deployment is restricted by irreversible oxygen redox, structural reconstruction, sluggish kinetics and unstable cathode‐electrolyte interfaces (CEI). Here, we develop a colloid‐assisted anchoring‐diffusion engineering strategy
Jia‐Nan Hao   +13 more
wiley   +1 more source

Superstrong and Tough Biomimetic Lignin‐Based Hydrogel Enabled by Self‐Diffusion Driven Strategy for Self‐Powered Human Dynamic Healthcare Monitoring

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Biomass‐based hydrogels are widely regarded as ideal substrates for self‐powered wearable sensors. However, the practical applications of hydrogels are commonly limited by their inherent low strength and toughness, which restrict their capacity to withstand repeated stretching, bending and other mechanical loads arising from human motion in ...
Boyu Du   +9 more
wiley   +1 more source

磁悬液自动搅拌输送机

open access: yes, 2022
本实用新型属于机械自动化工程领域,具体地说是一种磁悬液自动搅拌输送机,包括超声波液位传感器、输送水泵、搅拌桶、搅拌机构及防水电机,防水电机安装于搅拌桶的底面,防水电机的输出端与搅拌机构相连,搅拌桶内盛装有磁悬液溶液,搅拌机构及防水电机均浸没在磁悬液溶液液面以下,防水电机驱动搅拌机构旋转,通过搅拌机构对磁悬液溶液进行搅拌;搅拌桶的侧壁顶部安装有用于监控磁悬液溶液液面高低的超声波液位传感器,输送水泵可拆卸地安装在搅拌桶的侧壁上,输送水泵的底部浸没在磁悬液溶液液面以下。本实用新型具有结构简单,功率高效 ...
王聪   +9 more
core  

Competitive Anion Coordination Modulates Anode Interfacial Chemistry for Wide‐Temperature Sodium Batteries

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Sodium‐ion batteries (SIBs) offer a promising, cost‐effective alternative for large‐scale energy storage due to the abundance of sodium. However, their practical deployment is challenged by sluggish interfacial kinetics and unstable interphase formation, which severely limit performance across wide temperature ranges. Here, we demonstrate that
Mingxing Zhang   +10 more
wiley   +1 more source

Time‐Efficient Columnar‐to‐Equiaxed Transition via High Magnetic Field Processing

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT The need to simplify processing routes and improve processing efficiency motivates the development of time‐efficient methods for inducing the columnar‐to‐equiaxed transition (CET) during solidification while tailoring material performance. Conventional multistep CET approaches are time‐consuming and often struggle to simultaneously regulate ...
Chendong Zhao   +12 more
wiley   +1 more source

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