Results 51 to 60 of about 288,375 (159)

Emerging Polymer‐in‐Salt Solid Electrolytes for Advanced Lithium and Zinc Metal Batteries: Challenges, Progress, and Prospects

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Lithium metal anode and zinc metal anode have attracted considerable attention owing to their high theoretical capacity, low electrochemical potential, and superior electronic conductivity. However, their practical applications are greatly hindered by inherent issues such as uncontrollable dendritic growth and interfacial instability ...
Jing Wang   +10 more
wiley   +1 more source

异质结电荷注入晶体管

open access: yes, 1996
通过对GaAs/AlGaAs异质结电荷注入晶体管结构和工艺的探索研究,以及对器件工作特性的测量分析,在理论上给出了器件过程的物理机制 ...
郭纯英   +6 more
core  

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

open access: yesZhongshan 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  

Synergistic Effect of Hydrophilic Surface and Nano‐Ag2O in TiO2‐Based Composites Coating on Antibacterial and Osteogenic Properties of Low Modulus Ti‐Mo‐Ag Alloy

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Ti‐15Mo‐2.5Ag alloy exhibited a low modulus and strong antibacterial ability but poor bioactivity. To resolve this problem, sandblasting and anodization were used to create a hydrophilic and nano‐Ag2O‐containing TiO2 coating. Subsequently, the microstructure and physicochemical properties were investigated by scanning electron microscopy, X ...
Yanchun Xie   +11 more
wiley   +1 more source

玻璃化对复苏囊胚移植单胎分娩结局的影响

open access: yesZhongshan 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
doaj  

Scaling from microsite to landscape to resolve litter decomposition dynamics in globally extensive drylands

open access: yesFunctional Ecology, Volume 40, Issue 9, Page 2726-2736, September 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop   +8 more
wiley   +1 more source

热退火γ-Al_2O_3/Si异质结构薄膜质量改进

open access: yes, 2002
采用高真空MOCVD外延技术,利用TMA(Al(CH_3)_3)和O_2作为反应源,在Si(100)衬底上外延生长γ-Al_2O_3绝缘膜形成γ-Al_2O_3/Si异质结构材料。同时,引入外延后退火工艺以便改善γ-Al_2O_3薄膜的晶体质量及电学性能。测试结果表明,通过在O_2常压下的退火工艺可以有效地消除γ-Al_2O_3外延层的残余热应力及孪晶缺陷,改善外延层的晶体质量,同时可以提高MOS电容的抗击穿能力 ...
王俊   +7 more
core  

铁磁/半导体异质结材料MnSb/Si的物理气相沉积生长

open access: yes, 2003
采用一种新的生长铁磁/半导体异质结材料的方法——物理气相沉积方法生长了一种铁磁/半导体异质结材料MnSb/Si.对所获得的样品进行特征X射线能谱分析表明Mn和Sb在Si衬底上的沉积速率相近 ...
彭长涛   +3 more
core   +2 more sources

GaAs/Si/AlAs异质结的带阶和GaAS生长温度的影响

open access: yes, 2003
用分子束外延(MBE)设备制备了GaAs/AlAs和GaAs/Si/AlAs异质结,通过XPS分别研究了异质结界面处Si层厚度为0.5ML和1ML对异质结带阶的调节,得到最大调节量为0.2eV;通过C-V法研究了异质结的GaAs层在不同温度下生长对0.5MLSi夹层的影响,得到Si夹层的空间分布随GaAs层生长温度的升高而扩散增强的温度效应,通过深能级瞬态谱(DLTLS ...
孔云川   +8 more
core  

在InGaAsP/InP双异质结构中的光弹效应及其对侧向光的限制作用

open access: yes, 2001
从理论上计算了厚度为110nm的W_(0.95)Ni_(0.05)金属薄膜应变条在InGaAsP/InP双异质结构中形成的应力场分布,及由应力场分布引起的折射率变化。在W_(0.95)Ni_(0.05)金属薄膜应变条半导体中0.2-2μm深度范围内,由应变引起条形波导轴中央的介电常数ε相应增加2.3×10~(-1)-2.2×10~(-2)(2μm应变条宽)和1.2×10~(-1)-4.1×10~(-2)(4μm应变条宽)。同时,测量了由W_(0.95)Ni_(0.05)金属薄膜应变条所形成的InGaAs/
武作兵, 邢启江, 徐万劲
core   +2 more sources

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