Results 11 to 20 of about 256,015 (173)
基于Web of Science的微藻生物柴油文献计量分析 [PDF]
, 2012 通过检索ISI Web of Science网络数据库在1991～2011年期间发表与微藻生物柴油相关的文献,借助文献计量学研究方法,从文献类型和出版物语言、年份分布情况、学科和期刊分布、国家 ...
侯圣伟, 陈卓, 高宏
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PLANTS, PEOPLE, PLANET, EarlyView.The jewel‐like flowers of Thismia are as rare as they are beautiful, often recorded from only a single site per species. Access to 15 populations of T. kobensis has enabled an uncommon, range‐wide assessment of morphology, genetics, and fungal partners. Our analyses showed that T.
Kenji Suetsugu +4 more
wiley +1 more source
A new skew Laplace distribution(一种非对称拉普拉斯分布)
Zhejiang Daxue xuebao. Lixue ban, 2014 讨论一种新的非对称拉普拉斯分布，研究了该分布的性质、数字特征、参数估计、应用等，并将该分布与拉普拉斯分布在实际应用中的效果进行了对比.
ZHANGGuofen(张帼奋), DINGNing(丁宁)
doaj +1 more source
On the score distribution of the teams belong to NPB. : An application of Gamma-Poisson distribution [PDF]
, 2017 この論文は、プロ野球の一試合あたりの得点分布がどのような形状をしているかを、2012年シーズンについて調べたことがきっかけである。試しにあるチームの得点分布をガンマポアソン分布にあてはめてみたところ、適合度は極めて良好であった。そこで、セントラル・リーグ（以下セリーグと略記する）、パシフィック・リーグ（以下パリーグと略記する）合わせて12チームについて5シリーズわたってデータ入力し、統計分析ソフトウェアJMR(R)を用いて、ガンマ・ポアソン分布に従っているかについて調査したものである ...
Matsuo Akihiko, 松尾 精彦
core +1 more source
Wildlife Letters, EarlyView.In the winter of 2021/2022, a winter track survey revealed 43–46 tigers (without cubs) in 5.4 thousand km2 of suitable habitats in the Southwest Primorsky Province of Russia. In the same period, a network of camera traps registered 54 adult/subadult tigers here.
Yury Darman, Dina Matiukhina
wiley +1 more source
Wildlife Letters, EarlyView.Asiatic black bears in Russia face conservation threats such as habitat destruction and fragmentation, which exacerbate food shortages caused by crop failures. This study explores an innovative approach to rehabilitating bears that abandon hibernation in mid‐winter due to extreme exhaustion by providing supplemental food near their den sites.
Sergey A. Kolchin +2 more
wiley +1 more source
Dianci bileiqi, 2020 提出一种基于三参数Burr分布的估计方法来描述零值悬瓷绝缘子的温度分布特性。为验证这一方法,以某省电网运行10年及以上变电站悬式绝缘子红外测零项目的红外测温数据为研究对象,通过统计分析建立了三参数Burr分布数学模型。由于该分布函数的参数在极大似然估计法下没有显式解,故采用牛顿法对其求解,可得到三参数Burr分布对绝缘子零值温差分布的拟合曲线;然后,在MATLAB中利用Kolmogorov-Smirnov方法对于该分布模型进行了参数检验。检验结果表明 ...
徐华 +8 more
doaj
Community and population research of Tsuga longibracteata [PDF]
, 2016 长苞铁杉（TsugalongibracteataCheng），是属于松科（Pinaceae），铁杉属（Tsuga）的第四冰期孑遗植物；主要分布在我国22°49'-28°33'N，107°12'-118°14'E之间；由于自身更新速度缓慢以及长期的砍伐利用，其地理分布相对狭小且呈零星分布，分布区和居群规模在逐渐缩小和下降，面临着灭绝的危险；本文针对分布在福建省内各县市的长苞铁杉群落进行了基本区系特征、物种多样性、种群生命过程、分布格局和生态位等方面的生态学研究，结论主要如下： 1、各样地长苞铁杉群落在科 ...
夏玉叶
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Wildlife Letters, EarlyView.Climate change drives shifts in suitable habitats for Eurasian lynx and its prey (hare, roe deer) in Mohe, Daxing'anling Mountains. Under RCP scenarios, moderate warming (RCP4.5) promotes substantial habitat expansion, while high‐emission conditions (RCP8.5) lead to strong expansion in the 2050s but slower gains and partial contraction by the 2070s ...
Binglian Liu +5 more
wiley +1 more source
Local Ecological Knowledge Reveals the Distribution of Cryptic Nocturnal Wildlife
Wildlife Letters, EarlyView.Many nocturnal animals are difficult to study because they are rarely seen, including nocturnal primates, galagos and pottos, in West Africa. Working with over 600 people in 52 villages in southern Guinea‐Bissau, we found that communities frequently recognized galagos by their red eyeshine and distinctive calls, while pottos were not known.
Chloe Chesney +6 more
wiley +1 more source