Results 31 to 40 of about 26,397 (120)
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Precipitation of isothermal ω phase is an effective way to strengthen the metastable β‐Ti alloys but generally severely embrittles the materials by suppressing stress‐induced martensitic transformation and deformation twinning. Here, we architect heterogeneous structures with tailored ω phase in a metastable β‐Ti‐20Zr‐12Nb‐2Sn alloy via ...
Yang Liu +6 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2013 目的探讨磁共振扩散张量成像（DTI）在兔肾栓塞模型中的应用。方法 20只新西兰试验兔,采用股动脉插管行肾动脉栓塞术,术后行肾脏DTI检查。分析肾脏皮质、髓质以的表观扩散系数（ADC）、分数各向异性（FA值）的变化,并行髓质纤维束成像。结果正常肾肾皮质ADC、FA于正常肾肾髓质比较,两者差异具有显著性 ...
王宝明, 杨海山
doaj
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Micro‐/nanoscale single‐crystal materials have garnered significant attention due to their unique size‐dependent mechanical and functional properties, with applications spanning diverse cutting‐edge fields. This review provides a state‐of‐the‐art overview of these materials, encompassing their synthesis methods, advanced mechanical and ...
Yi Li +16 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2018 ： 【目的】比较卵裂期胚胎复苏后囊胚培养移植与复苏嚢胚移植的单胎分娩结局，探讨最佳冻存方 案。【方法】回顾性分析2014年1月至2016年10月在本中心行复苏周期移植（FET）并单胎分娩的患者，囊胚复苏 组1 037个周期，卵裂胚复苏囊胚培养组690个周期。分析两组的新生儿分娩结局，其中包括平均孕周，平均体 质量，男婴出生率，早产率，极早产率，低体质量率，极低体质量率，先天异常率。【结果】平均胎龄，新生儿平均体 质量，活产、健康抱婴以及死胎的比例两组没有统计学差异（P>0.05 ...
刘寒艳, 陈仕萍, 杜红姿
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Divergent Electrochemical Behaviors of O2 and O3 Phases in Li‐Rich Layered Oxides
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Lithium‐ion batteries (LIBs) have dominated the landscape of electrochemical energy storage for decades. The growing market demands for higher energy densities are pushing against the limitations of conventional cathode materials. Li‐rich layered oxides (LLOs) present a promising path forward by harnessing both cationic and anionic redox ...
Juncheng Huang +9 more
wiley +1 more source
Microstructure Tailoring of Laser Powder Bed Fused Nb521 Alloy Toward Strength‐Ductility Synergy
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Niobium‐based refractory alloys are promising candidates for high‐temperature aerospace structures, yet their limited ambient‐temperature ductility and poor processability remain major barriers to broader implementation. Here, Nb521 alloy was fabricated by laser powder bed fusion (LPBF), and the effects of processing conditions and subsequent ...
Lele Qin +7 more
wiley +1 more source
Shuitu Baochi Xuebao, 2005 用地统计学的方法,研究了黄灌沙区农田耕作层(030 cm)土壤的有机质、全氮、碱解氮、速效磷、速效钾、pH和电导率的空间变异规律。结果表明,农田耕作层土壤养分的空间异质性主要由随机性因子如土壤耕作措施,包括施肥、灌溉和作物轮作等造成,这与该区农田耕作层土壤是引黄灌溉改良的结果有关。土壤养分含量的变异函数均可很好地拟合成线性模型,块金值和基台值之比(C0/C0 C)均为1,说明随机性因子是导致该区土壤性状空间变异的主要因素,在整个尺度上具有恒定的变异,造成了土壤性状的相对均一。pH的变异函数为指数模型 ...
贾晓红 李新荣 周海燕 樊恒文 赵金龙 李元寿
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Many metallic components are frequently subjected to coupled environments of friction and vibration, stemming from interfacial contact and relative motion between mating parts or external stimuli. Consequently, it is imperative for these components to exhibit a synergy of high wear resistance and superior damping properties.
Ze Pu +12 more
wiley +1 more source
运用蛋白质组学技术研究结肠粘膜、腺瘤及腺癌组织蛋白的差异表达
Zhongshan Daxue xuebao. Yixue kexue ban, 2008 ［目的］通过比较结肠正常粘膜、腺瘤、腺癌组织之间的蛋白质组表达差异，寻找结肠腺癌相关的蛋白质，筛选结肠癌早期诊断的分子标志物。［方法］运用比较蛋白质组学技术，对8例结肠癌患者（伴有腺瘤）的正常粘膜、腺瘤、腺癌组织提取的总蛋白进行双向电泳（2-D），分析凝胶图片选择两两间差异表达超过2倍的蛋白质进行MALDI-TOF/TOF质谱分析和生物学信息分析。［结果］成功建立结肠正常粘膜、腺瘤、腺癌的双向凝胶电泳图谱，在凝胶电泳图谱中平均蛋白质斑点数分别为3066 、2986和3289 ...
doaj
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT The development of high‐performance, self‐powered ultraviolet photodetectors (UVPDs) is crucial for the practical application of low‐power‐consumption optoelectronic devices. However, achieving both broad‐spectrum detection and high sensitivity remains a challenge.
Ping‐Xian Feng +6 more
wiley +1 more source