Results 11 to 20 of about 1,133,740 (188)
Optical spectrum of the post-AGB Star HD56126 in the wavelength interval 4010-8790 Å Å [PDF]
Astrophysical Bulletin, 2007 The optical spectrum of the post-AGB star HD56126 identified with the infrared source IRAS07134+1005 is studied in detail using high spectral resolution observations (R = 25000 and 60000) performed with the echelle spectrographs of the 6-m telescope. A total of about one and a half thousand absorptions of neutral atoms and ions, absorption bands of C2,
V. G. Klochkova +3 more
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Onomázein, 2023 Because the Chinese kinship and the Spanish one belong to the Sudanese type and Eskimo type respectively, there is a huge asymmetry and non-equivalence in the address terminologies. Although the Chinese kinship address terms, like the Spanish ones, have vocative function in the family context as well as in the non-family one, for the linguistic and ...
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, 2009 本文在1MW切向燃烧煤粉炉试验台上进行了空气分级燃烧试验，研究了空气分级燃烧时炉膛壁面温度分布规律。试验结果表明，在空气分级燃烧时主燃区壁面温度分布相对于炉壁中心位置呈左右不对称分布，炉壁最高温度大致出现在旋转气流的上游，壁面温度分布不均匀系数为0.244；燃尽区下部壁面温度分布也呈不对称分布，最高温度出现在旋转气流的下游，壁面温度分布不均匀系数为0.106 ...
惠世恩, 李森, 徐通模
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Zhejiang Daxue xuebao. Lixue ban, 2013 定义并研究了广义Kum指数分布(GKumE).给出GKumE分布的分布函数、密度函数以及风险函数，并讨论了其密度函数的展开以及一些数学性质.采用极大似然估计方法对GKumE分布参数进行估计.最后，利用一组实际寿命数据分析了GKumE分布的应用.
ZHOUWei(周唯), ZHANGGuo-fen(张帼奋)
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Zhejiang Daxue xuebao. Lixue ban, 2006 分析了用图形方法计算逻辑函数的布尔差分与布尔偏导数存在的问题，在分析布尔差分与布尔偏导数的定义的基础上提出了计算布尔差分与布尔偏导数的表格方法，讨论了在1值最小项数较多时用计算布尔差分与布尔偏导数的表格方法.本文提出的表格方法与图形方法相比，具有不需画图，操作方便，易于计算机编程操作以及可用于多变量逻辑函数等优点.
LIANYi-qun(练益群) +1 more
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Integrative Conservation, EarlyView.We comprehensively evaluated the seed plant diversity of Jiangxi province to address the regional biodiversity conservation of Asian subtropical evergreen broad‐leaved forests (EBLFs). Higher species diversity of seed plants was observed in eastern, southern, and western Jiangxi, with elevation and precipitation as mainly environmental factors.
Minqin Duan +8 more
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野生动物学报, 2020 2014—2019年，对山西省褐马鸡（Crossoptilon mantchuricum）的分布进行调查研究，采用查阅文献、访问和野外调查相结合的方法，取得有效空间分布点位349处，结果表明：褐马鸡分布于吕梁山地的5市32县，面积约为9415 km2；洪洞、晋源区、忻府区、保德4个县为其新扩散的分布区；太岳山林区为新分布区，包括3市5县，面积约1642 km2。全省分布点位介于海拔582—2651 m。确定褐马鸡太岳山林区分布为原来历史分布的残存或延续。
杨向明
doaj
Canine Distemper Virus Research in China and Future Directions for Conservation 中国犬瘟热病毒研究现状与保护策略展望
Integrative Conservation, EarlyView.ABSTRACT Canine distemper is a highly contagious, severe disease caused by the canine distemper virus (CDV). With a worldwide distribution and ever‐expanding list of susceptible hosts, CDV poses a growing risk for many threatened wildlife species, both in captivity and their native habitats. As a megadiverse country, China is home to myriad endemic and
Aliana C. Norris +4 more
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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
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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
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