Results 21 to 30 of about 9,777 (155)
Advances in the studies of turbulence properties in the cloud and the role of turbulence in cloud and precipitation [PDF]
, 2023 Turbulence is an unregular atmospheric motion. Through increasing the collision efficiency of cloud droplets and accelerating the growth rate of cloud droplets, it plays an important role in the processes of cloud and precipitation formation and ...
Lei TIAN +4 more
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Structured machine learning modeling to support conservation of deep‐sea benthic biodiversity
Conservation Biology, EarlyView.Abstract Biodiversity monitoring programs need to deliver accurate, timely, and actionable predictions. To establish a predictive monitoring program for deep‐sea benthos of the Santos Basin, Brazil, we developed a two‐stage structured model that allowed comparison of biodiversity predictions obtained from environmental simulations (2M‐Sim).
Gustavo Fonseca +23 more
wiley +1 more source
Soil Salinization Characteristics of Different Land Use Types in a Typical Oasis Irrigation Area of Lower Tarim River [PDF]
, 2023 [Objective] The soil salinization characteristics under different land use types in extremely arid regions were analyzed in order to provide support for the sustainable efficient utilization of regional land resources.
Baiyun Gang +6 more
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Conservation Biology, EarlyView.Abstract Bycatch in fisheries is one of the most serious threats to pelagic seabirds, causing major population declines. Mitigation measures can reduce bycatch substantially, but many fisheries fail to apply best practices, and seabird mortality remains high.
V. Warwick‐Evans +2 more
wiley +1 more source
, 2018 社会问卷调查往往需要针对多目标测度不同类型的数据,而传统的抽样方法主要针对单目标对象,且数据类型为数值型数据。本研究以厦门岛出行调查为例,调查问卷包含了住区特征、居民社会经济状况、就业情况、出行方式、出行目的与时间等方面的指标,提出了以变异度模型为主的新方法。以厦门岛住区居民出行所带来的能耗问题收集的少量先验问卷信息以及历史数据为基础,通过模型表征测度不同类型变量的空间变异性,将其作为空间分层的依据从而完成抽样布点方案,评价精度通过抽样方差进行。结果表明:(1 ...
刑莉, 曹馨, 李新虎, 高丽玲
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The Terraced Walls Significantly Influence the Spatial Distribution of Soil Water in Terraced Areas on the Loess Plateau [PDF]
[Objective] Converting slopes into terraces is a crucial soil and water conservation and agricultural measure on the Loess Plateau. Understanding the impact of terraced walls on soil water is conducive to preserving soil water and enhancing terrace ...
BAI Chenyun +5 more
core +1 more source
Research on the Relationship Between Spatial Distribution of Housing Price and Infrastructure Level [PDF]
, 2017 为了探究厦门市岛内普通住宅房价的空间分布与基础设施水平的关系,运用Arc GIS得出最邻近指数、全局的Moran I指数和局部聚类与异常值情况,揭示普通住宅的空间聚集和房价空间自相关现象;通过数据统计分析、克里金插值和趋势分析,得到厦门岛内房价多中心分布状态及其演变规律。实现了基础设施水平空间结构的地理表达及整体评价,并基于双对数回归模型和地理加权回归模型,揭示影响房价空间分异的各类基础设施因子的不同影响情况。In order to explore the relationship between ...
周红, 曾祎瑾
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Conservation Biology, EarlyView.Abstract Procedural, distributional, recognitional, and epistemic justice aspects of conservation interventions are well documented in contexts where pastoralism is a key livelihood and way of life. Geospatial analyses and representations of wildlife conservation and restoration that are increasingly applied in pastoralist rangeland socioecological ...
Ryan R. Unks
wiley +1 more source
Shuitu Baochi Xuebao, 2007 采用地统计学的方法,研究了江西泰和退化红壤区不同模式重建森林在高温干旱季节土壤水分空间变异规律及其分布格局。结果表明,在该研究尺度下,湿地松纯林、枫香纯林、湿地松与枫香混交林0~20 cm,20~40cm土层含水量分布都符合正态分布,都可较好地拟合成球状模型,表现出明显的空间相关性和空间分布格局。3种重建模式样地0~20 cm,20~40 cm层土壤含水量变异函数的基台值、变程都较无林荒地明显增大,而且基台值和变程在0~20 cm,20~40 cm两土层间的差异明显大于无林荒地,说明植被恢复以后 ...
杜志勇 +3 more
doaj +2 more sources
健康小鼠进食绣球菌对腹腔巨噬细胞分泌肿瘤坏死因子α的影响 [PDF]
, 2018 测定健康小鼠进食绣球菌对腹腔巨噬细胞分泌肿瘤坏死因子α(TNF-α)的影响.SPF级Balb/C健康小鼠分组进食普通饲料、分别含绣球菌饲料、干品、浸汁饮水或其添加物组合、分别含酵母β-葡聚糖饲料、浸汁饮水或其添加物组合;进食一定时间后,分离腹腔巨噬细胞,使用含质量分数10%胎牛血清的RPMI1640培养液培养,TNF-α试剂盒检测上清液中的TNF-α质量浓度.结果表明,强化进食绣球菌组合(绣球菌饲料+干品+浸汁)的小鼠与对照组或酵母β-葡聚糖组合(酵母β-葡聚糖饲料+浸汁)小鼠相比,体质量不升反降 ...
张鸣青 +6 more
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