Zobrazeno 1 - 10
of 100
pro vyhledávání: '"曾云"'
Autor:
罗李平(LUO Liping), 曾云辉(ZENG Yunhui)
Publikováno v:
Zhejiang Daxue xuebao. Lixue ban, Vol 51, Iss 4, Pp 434-437 (2024)
The oscillation problem is investigated for a class of nonlinear impulsive delay hyperbolic equations with damping term. By employing the technique of treating damping term and some known results on first order impulsive delay differential inequaliti
Externí odkaz:
https://doaj.org/article/a168465563de448e878274cce5b1bd1b
Publikováno v:
Zhejiang Daxue xuebao. Lixue ban, Vol 51, Iss 1, Pp 5-13 (2024)
The purpose of this paper is to establish some new oscillation criteria for the second-order nonlinear neutral differential equations with damping terms which have the form [a(t)z'(t)α-1z'(t)]'+b(t)z'(t)α-1z'(t)+q(t)x(σ(t))β-1x(σ(t))=0， where
Externí odkaz:
https://doaj.org/article/d7204326e57e4bfd9ea74d6ee788c180
Publikováno v:
Zhongguo youzhi, Vol 48, Iss 4, Pp 149-152 (2023)
为提高工作效率，降低误差，建立分子印迹柱全自动固相萃取净化-高效液相色谱法测定食用植物油中苯并（a）芘含量的方法。样品经正己烷提取，采用全自动固相萃取仪进行分子印迹柱净
Externí odkaz:
https://doaj.org/article/b5f26b67ec864b8ea774ecf28d41ba35
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 67-70 (2005)
介绍了光迅科技有限责任公司研发的宽范围可调光功率分配器,描述了该产品在光纤到户（FTTH）、光线路保护和各种光网络中的可能应用。
Externí odkaz:
https://doaj.org/article/022ee36b153f4fe58c939499d925ba24
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 42-44 (2009)
文章介绍了一种基于薄膜滤光片（TFF）技术的50 GHz通道间隔、平顶型可调谐光滤波器（TOF）的研制。对角度调谐干涉滤光片的原理进行了讨论,同时对超窄带膜系设计进行了优化。研制出的器
Externí odkaz:
https://doaj.org/article/8d891b2ae6fc4b4e9f9d7cca816ce8a5
105
In this research, we will model a non-symmetric cross-price sensitivity demand function derived from the utility function (Singh and Vives, 1984). And we use this non-symmetric demand function to re-investigating the relative management issu
In this research, we will model a non-symmetric cross-price sensitivity demand function derived from the utility function (Singh and Vives, 1984). And we use this non-symmetric demand function to re-investigating the relative management issu
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/39m54g
Autor:
Yun-Shan Tseng, 曾云杉
100
With the uncertainty of the external environment factors, forecasting model has been applied to assist decision makers to make better decision in the business process. In addition, the external factors, such as brand awareness and advertisin
With the uncertainty of the external environment factors, forecasting model has been applied to assist decision makers to make better decision in the business process. In addition, the external factors, such as brand awareness and advertisin
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/22457884619968373621
Autor:
曾云威
99
Laetiporus sulphureus, one of the rare species, is a traditional medicinal mushrooms. The mushroom can be used as adjuvant food during the treatment of breast cancer and prostate cancer. Previous studies indicated that polysaccharides and ext
Laetiporus sulphureus, one of the rare species, is a traditional medicinal mushrooms. The mushroom can be used as adjuvant food during the treatment of breast cancer and prostate cancer. Previous studies indicated that polysaccharides and ext
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/39074368162270259353
Publikováno v:
China Petroleum Machinery; 2024, Vol. 52 Issue 8, p92-100, 9p
Publikováno v:
Journal of Drainage & Irrigation Machinery Engineering / Paiguan Jixie Gongcheng Xuebao; Aug2024, Vol. 42 Issue 8, p810-817, 8p