Results 81 to 90 of about 1,350,451 (215)
New Phytologist, Volume 252, Issue 4, Page 1432-1444, November 2026.Conceptual scheme of the nitrous oxide (N2O) production, consumption, and transport processes across the soil–plant–atmosphere continuum. Summary Nitrous oxide (N2O) contributes substantially to climate change and stratospheric ozone degradation, yet large uncertainties in its global budget point to overlooked sources.
Moritz Schroll +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2016 以胶东半岛丘陵区7个集水区为研究对象，采用SA模型提取研究区冲沟系统，测算冲沟沟长盒维数，分析沟长分形特征及其与地形参数和土地利用类型间的关系，厘定研究区内冲沟发育演化的特征及规律。结果表明：(1) 东部构造活动性强的隆起区分维值明显高于西部构造活动性弱的沉积凹陷区沉降区，沟长分形特征主要受区域地质构造控制。(2) 沟长分维数与平均坡度、地表粗糙度、剖面曲率、沟壑密度和沟头密度等地形参数之间相关性显著，而与集水区面积和沟长没有相关性。(3) 沟头密度、沟壑密度与沟长分维数间具有极显著正相关性 ...
王 +4 more
doaj
New Phytologist, Volume 252, Issue 4, Page 1526-1544, November 2026.Proposed model of ZmSPL12‐mediated drought resistance through auxin regulation. Summary Climate change‐induced drought increasingly threatens global maize production. Drought‐adaptive root plasticity in maize depends on auxin signaling, yet how auxin homeostasis is dynamically tuned in response to water deficit remains unclear.
Hua Xu +18 more
wiley +1 more source
, 2009 通过数值模拟,分析了溢流管插入深度对油水在柱形旋流分离器中分离性能的影响。计算时,油水两相流动采用FLUENT中的混合模型,相间的相对运动采用代数滑移模型,湍流影响则使用修正的RNGK-ε湍流模型进行模拟。通过计算,获得了内溢流管不同插入深度时柱形旋流器分离器油相体积分布、压力分布、油水分离效率等结果。这些结果为进一步优化柱形旋流器结构 ...
史仕荧, 郑之初, 吴应湘
core +2 more sources
Linking genomic variation to floral trait adaptation across species boundaries
New Phytologist, Volume 252, Issue 4, Page 1399-1412, November 2026.Examples of floral trait divergences between sister species adapted to different pollination modes. Summary Flowers are highly diverse in shape, scent, and colour and may differ strikingly even among closely related species. Floral traits experience correlational selection favouring trait combinations that maximise plant reproduction, leading to ...
Samson Acoca‐Pidolle +2 more
wiley +1 more source
, 1998 应用非线性科学中的分形几何理论，以黄淮海平原封丘试区的芦苇为例，研究芦苇生长格局的分形特征。计算表明，芦苇大小分布的分形维数在0．6235—0．8761之间。统计分析表明，其分布格局可明显地分为两个时期：在芦苇生长的初期，其大小分布较为均匀（分维＞0.8），而在芦苇生长的中后期（6月底以后），大小分布差异较大（分维＜0.7）
蔡庆华,赵斌,潘文斌
core
From the Margins: Potential Coalitions in Centralized, High‐Capacity States
Policy Studies Journal, Volume 54, Issue 4, November 2026.ABSTRACT The early stages of coalition formation remain an understudied area, particularly in centralized, high‐capacity political systems. Examining actor dynamics at this formative stage can reveal how coalitions form and how limited pluralism constrains their development.
Sreeja Nair, Yuhao Ba, Mohnish Kedia
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2010 目的探讨白血病免疫分型与FAB分型的关系,以指导临床进行分析与治疗。方法对505例白血病患者分别进行细胞形态学检查和流式细胞术（FCM）免疫分型,并对2种检查结果进行分析。结果①505例白血病患者中FAB初诊急性髓细胞白血病（AML）248例,急性淋巴细胞白血病（ALL）200例,慢性粒细胞白血病（CML）18例,慢性淋巴细胞白血病（CLL）15例,混合型白血病（HAL）14例,少见类型10例;免疫分型初诊单纯型AML163例,变异型AML83例,单纯型ALL108例,变异型ALL106例,双表型32例,
杨峥 +5 more
doaj
, 2004 采用多变量分析方法对副沙鳅属Parabotia的外部形态进行了主成分分析 ,在 2 7个测量性状的第 1、第 2主成分散布图上显示 ,副沙鳅属的外部形态存在着 3个具有明显差异的种组 :即点面副沙鳅 ,双斑副沙鳅、武昌副沙鳅和花斑副沙鳅 ,漓江副沙鳅和小副沙鳅 3个种组。主成分负荷值还进一步表明 ,6种副沙鳅属外部度量性状的差异有多元化的倾向。结合定性特征的观察确定了副沙鳅属 ...
杨军山,陈毅峰
core