Results 41 to 50 of about 14,754 (164)
Functional Ecology, Volume 40, Issue 2, Page 534-552, February 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Non‐structural carbohydrates (NSC) are critical mediators of plant adaptation to fluctuating light environments. They are tightly coordinated with plant economic strategy, that is, leaf economics spectrum (LES) and root economics spectrum (RES).
Lulu Xie +6 more
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Zhongshan Daxue xuebao. Yixue kexue ban, 2019 【目的】总结5种亚型儿童RAS通路病的临床特点及基因变异类型，分析Ⅰ型神经纤维腺瘤病（NF1）、努南综合征（NS）、多色素痣型努南综合征（NSML）、科斯特洛综合征（CS）和心-面-皮肤综合征（CFC）的临床共性和特性，提高临床医生对RAS通路病的认识和诊治水平。【方法】回顾性分析我院2015年10月至2018年6月期间确诊的11例RAS通路病患者的临床资料及基因突变类型。【结果】11例RAS通路病患儿的发病年龄为6月~12岁，常见临床表现包括：身材矮小、特殊面容、先天性心脏病、皮肤牛奶咖啡斑 ...
江转南 +7 more
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Dizhen xuebao本文综合前人在青藏高原东北缘利用不同方法不同资料得到的地震各向异性结果，对该地区断裂和应力等构造特征及分层各向异性进行了分析。结果表明，青藏高原东北缘以地壳缩短增厚变形为主，部分区域存在各向异性分层或壳内韧性层。XKS （SKS，PKS和SKKS震相的统称）分裂的快波方向整体呈NW或WNW向，与上地幔物质的流动有关。地壳的快波方向表明地壳变形会受到断裂及主压应力的影响。祁连造山带和海原断裂带的分层各向异性特征揭示了上地壳与中下地壳可能存在解耦。阿拉善地块东部至鄂尔多斯地块西部可能存在壳幔解耦现象 ...
Xinyu Xia, Yuan Gao
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Relationship between Available State and Forms of Selenium and Zinc in Farmland Soil of Luoyang City and Its Influencing Factors [PDF]
The form and available state of elements are important indexes to evaluate the activity of elements. Research on the relationship between the available state and form of selenium (Se) and zinc (Zn) in farmland soil is an important basis for accurate land
Jianchuan ZHOU +5 more
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Whole genome sequencing of foodborne pathogens and global data sharing development [PDF]
, 2020 With the rapid development of molecular typing techniques for monitoring foodborne pathogens and outbreak investigations, whole genome sequencing (WGS) is gradually revealing its importance.
Ruohong ZHANG +4 more
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Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Spatial segregation in at‐sea distribution is frequently observed in seabirds and can have important implications for conservation and management. Globally, many albatross and petrel populations are declining due to bycatch in fisheries. In South Georgia, the decrease in wandering albatrosses (Diomedea exulans) differs among breeding sites ...
V. Warwick‐Evans +3 more
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Gaoya dianqi, 2020 为提高断路器机械振动信号的时—频特征分类能力、减小噪声干扰和提高断路器状态识别的准确性,提出一种基于S变换与优化随机森林算法的高压断路器机械故障诊断方法。首先,对高压断路器原始振动信号进行S变换;然后对S变换得到的时—频矩阵进行局部奇异值分解,以每个子矩阵的最大奇异值为特征向量;之后,将特征向量输入到随机森林中,以泛化误差与诊断准确率为综合指标对树的棵数进行寻优,构建最优随机森林分类器,最终实现对高压断路器机械故障状态的准确判别。对断路器实测振动数据开展对比实验,结果表明,新方法的特征类可分性好 ...
张欣 +5 more
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Gaoya dianqi, 2021 利用特高频局部放电检测方法及时发现并处理气体绝缘金属封闭开关设备（GIS）内部固体绝缘缺陷,是GIS设备运维的重要手段。目前将异常特高频信号与现行标准、规范和典型模拟缺陷图谱进行比对从而诊断缺陷类型及严重程度的方法,因现场情况复杂、设备结构各异,准确性有待进一步提升。因此文中针对现场检测中发现的GIS固体绝缘表面放电缺陷和内部气隙放电缺陷,研究该类缺陷所激发特高频局部放电信号的PRPS统计图谱特征,并利用傅里叶变换和连续小波变换分析单次特高频原始脉冲的频谱特征和时频特征 ...
周电波 +6 more
doaj
Spatial Pattern and Influence Factor Analysis of Soil Organic Matter Based on the GeoDetector Model: Taking Liaoyang—Anshan Area as an Example [PDF]
Spatial pattern of organic matter distribution and its influencing factors in the study area can provide a decision-making basis for territorial spatial planning. The majority of previous studies in this area focused on the soil surface, and most of them
Cang GONG +8 more
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Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Exploring heat tolerance and acclimation capacity can provide an effective approach to evaluating species’ sensitivity to extremely high temperatures due to climate warming. Despite some work on amphibian and reptile thermophysiological adaptation, related questions remain. We reviewed the literature to provide a synthesis of worldwide data on
Zijian Sun +8 more
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