Results 151 to 160 of about 91,243 (286)
Guangtongxin yanjiu, 2010 异步光码分多址（OCDMA）系统是近年来关注的热点,但对适用于该系统的二维码字的研究还比较少。文章分析了扩展同余码（EQC）在异步OCDMA系统中的相关性,并进一步提出一种用于异步OCDMA系统的二维时间/频率组合码的构造方法。分析该地址码的自相关和互相关特性的结果表明:由EQC和光正交码（OOC）构成的二维时间/频率组合码EQC/OOC具有良好的自相关和互相关特性。
李永萍, 张兴周
doaj
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract The nested subset pattern (nestedness) has been widely used to explain species distributions in island and fragmented systems. Mountain sky islands serve as critical natural laboratories for understanding the evolutionary consequences of geographic isolation and climate
Caiwen Zhang +5 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2005 目的 探讨血清可溶性Fas（sFas）和转化生长因子 β1（TGF β1）水平的变化与乙肝后相关性肝硬化、肝癌的关系。方法 对 2 0例肝炎、2 8例HBV相关性肝硬化及 2 0例肝癌患者血清sFas、TGF β1、血清透明质酸、Ⅲ型前胶原、Ⅳ型胶原进行检测 ,同时对其中 4 3例慢性乙肝和肝硬化患者进行HBV DNA的定量检测。结果 HBV相关性肝硬化、肝癌患者血清sFas和TGF β1水平明显升高 ,与正常对照比较 ,差异有显著意义 （P
林向阳 +5 more
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Mycorrhiza‐induced alterations in the spatial structure of stands in a subtropical forest
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Spatial aggregation patterns represent snapshots of ecological processes that occurred over an extensive period. Such processes can shape both the conspecific and the heterospecific spatial structure of plants across woody habitats.
Jingjing Xi +6 more
wiley +1 more source
Gaoya dianqi, 2005 相控开关的核心问题之一是最佳投切相位的确定,而最佳投切相位又与断路器的预击穿绝缘特性密切相关。针对断路器预击穿特性对最佳同步关合目标相位的影响,文中引入了关合系数k,并对其进行分类讨论,详细分析了断路器合闸时的预击穿物理过程,同时考虑到断路器动作时间分散性,得到了不同绝缘强度下降率（RDDS）与机械分散性条件下的最佳投切相位计算公式。
丁富华, 邹积岩, 段雄英
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Organic phosphorus mineralization is a critical process in the phosphorus cycle, governing phosphorus bioavailability for plants. The PhoD gene, which encodes the key enzyme alkaline phosphatase, serves as a valuable biomarker for this process.
Sandhya Mishra +3 more
wiley +1 more source
胆囊腺癌pAKT、VEGF、微血管和微淋巴生成的检测及其临床意义
Zhongguo shiyan zhenduanxue, 2011 目的研究胆囊腺癌组织中磷酸化丝氨酸/苏氨酸激酶（pAKT）、血管内皮生长因子（VEGF）蛋白的表达、微血管密度（MVD）和微淋巴管密度（MLD）及其临床意义。方法应用免疫组织化学SP法检测46例胆囊腺癌pAKT、VEGF、微血管和微淋巴管密度。结果胆囊腺癌pAKT和VEGF的阳性表达率分别为87.0%（40/46）和91.3%（42/46）。pAKT的阳性表达与临床分期和淋巴结转移显著相关,统计学有显著性差异 ...
王甘露 +5 more
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Studies have shown that organisms may adjust metabolic rates in response to thermal variability, highlighting metabolic plasticity as a key adaptive mechanism. Understanding the extent of metabolic plasticity of an organism is key to predicting its adaptation to climate
Qian Hu +6 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2010 目的对酮胺氧化酶法测定糖化白蛋白（GA）进行方法学评价。方法分析及评价Lucica GA-L试剂盒的精密度、稀释线性、回收率、干扰因素以及试剂稳定性。比较GA与糖化血红蛋白（HbA1c）的相关性,GA与果糖胺（GSP,NBT法）的相关性。比较溴甲酚绿法（BCG）和溴甲酚紫法（BCP）测定白蛋白的相关性。结果该试剂精密度高 ...
贾珂珂, 李国权, 张捷
doaj
One‐Sidedness and the Inferior Function in Coriolanus and Timon of Athens
Journal of Analytical Psychology, EarlyView.Abstract For both Jung and Shakespeare, one‐sidedness is the fundamental tragic trait. Jung proposed that as an individual develops, they inevitably associate their identity with certain modes of perception and interaction, and that this leads to psychological polarization.
Sofie Qwarnström
wiley +1 more source