Results 11 to 20 of about 1,210,655 (177)
Guangtongxin yanjiu, 2016 为了提高光纤光栅解调仪表的速度与精度,提出了一种双边沿解调及非线性修正方法对PZT（压电陶瓷）的迟滞效应进行补偿。通过对PZT两端电压的上升、下降沿同时采集数据并进行交叉解调的方式,在提高解调速度的同时有效地消除了迟滞效应。利用1个10探测点的C波段光栅对该修正方法进行检验,修正效果较为理想,各波长的解调误差小于±5pm。
张俊
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Zhejiang Daxue xuebao. Lixue ban, 2023 研究一类非齐次项是p-Laplace算子的椭圆方程组非常弱解的正则性。结合Hodge分解以及偏微分方程正则性理论的证明技巧，建立了具有p-Laplace型椭圆方程组的非常弱解与经典意义下的弱解之间的关系。
陈淑红(CHEN Shuhong)
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Discussion on the Diophantine equation X2-(a2+1)Y4=35-12a(关于丢番图方程X2-(a2+1)Y4=35-12a的讨论)
Zhejiang Daxue xuebao. Lixue ban, 2016 设a是正整数，证明了当a=1时，方程X2-(a2+1)Y4=35-12a仅有正整数解（X，Y）= (5，1)；当α=2 时，该方程仅有正整数解(X，Y)=(4，1)和(56，5)；当a=3时，该方程仅有正整数解(X，Y)=(3，1)；当a=4时，该方程仅有正整数解（X，Y）= (2，1)和(202，7)；当a=5时，该方程仅有1组互素的正整数解(X，Y) = (1，1)；当a=6 时，该方程无正整数解(X，Y)；当a≥7且12a+1为非平方数时，该方程最多有3组互素的正整数解(X，Y)；当a≥7且12a+
GUANXungui(管训贵)
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Zhejiang Daxue xuebao. Lixue ban, 2006 将用于求解椭圆型偏微分方程边值问题的基本解方法应用于求解一个三维线弹性反问题，即Navier方程组的Cauchy问题.基本解方法离散方程所得的线性方程组是高度病态的，常见的求解方法如最小二乘法等无法得到合理的解.文中应用Tikhonov正则化和截断奇异值分解这两种正则化方法求解线性方程组，所需正则化参数则根据L-曲线确定，克服了问题的病态性.数值算例表明，本文方法能有效地求解三维线弹性力学反问题，而且这两种正则化方法所得到的结果精度相当.
WANGJun(王钧) +2 more
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Zhejiang Daxue xuebao. Lixue ban, 2016 讨论了一类带有Crowley-Martin和比率依赖反应函数的扩散捕食-食饵模型.首先利用局部分歧理论考察了系统关于强半平凡解处产生正解的存在性，再运用扰动理论得到了正解的稳定性.最后借助全局分歧理论和不动点指数理论给出了正解多重性的条件.
LIHaixia(李海侠)
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, 2004 本文依据球面波传播原理和介质阻尼效应解释了修正算子的物理含义,解释结果表明加修正算子γB00后的多次透射公式考虑了介质的几何扩散特性,或引入了介质的阻尼特性。最后,通过分析比较 ...
廖振鹏, 周正华
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Wildlife Letters, EarlyView.We used automated behavioral response systems (ABRs) to assess invasive wild pig (Sus scrofa) behavioral response to four auditory playbacks: humans, coyote vocalizations (Canis latrans), pigs in distress, and barred owl (Strix varia) calls. Wild pigs had a significant flight response to human playbacks, but 68% of pigs did not flee.
Justine L. Smith +2 more
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Journal of Analytical Psychology, EarlyView.Abstract Written as a letter to my 28‐year‐old self, this paper explores the development of my engagement with cultural complexes. On August 18, 2009, I finished a chapter applying cultural complexes to a history of China, complete with elaborate charts that seemed to confirm a process by which cultural complexes are formed, and how China’s then recent
Kevin Lu
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Advancing conservation breeding programs for marine invertebrates
Conservation Biology, EarlyView.Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam +3 more
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Twelve principles for successful governance of community‐based coastal marine restoration
Conservation Biology, EarlyView.Abstract Global agreements, such as the Global Biodiversity Framework, call for urgent, large‐scale action to halt biodiversity loss through a whole‐of‐society approach. Community‐based restoration can play a crucial role in achieving this goal, yet there remains limited understanding of what makes these projects effective and sustainable.
Michelle M. Holian +2 more
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