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"Abstracts of the 78th Annual Meeting of the Japanese Cancer Association; 2019 Sept 26-28; Kyoto, Japan" as Cancer Science, Supplement 1, Vol 110 (2019). [PDF]
Cancer Sci, 2019 Cancer Science, Volume 110, Issue S1, Page 1-1208, December 2019.
europepmc +2 more sources
Building blocks of polycentric governance
Policy Studies Journal, Volume 51, Issue 3, Page 475-499, August 2023., 2023 Abstract Success or failure of a polycentric system is a function of complex political and social processes, such as coordination between actors and venues to solve specialized policy problems. Yet there is currently no accepted method for isolating distinct processes of coordination, nor to understand how their variance affects polycentric governance ...
Tiffany H. Morrison +6 more
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Effects of site‐selection bias on estimates of biodiversity change
Conservation Biology, Volume 35, Issue 2, Page 688-698, April 2021., 2021 Abstract Estimates of biodiversity change are essential for the management and conservation of ecosystems. Accurate estimates rely on selecting representative sites, but monitoring often focuses on sites of special interest. How such site‐selection biases influence estimates of biodiversity change is largely unknown.
Andrea Mentges +4 more
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Zhejiang Daxue xuebao. Lixue ban, 2007 尝试在深度方向引入PML（完美的匹配层）选取适当的非线性局部坐标正交变换及方程变换，将Helmholtz方程uxx+uzx+k2(x，z)u = 0变换为，然后再选取非对称Rayleigh商迭代算法来求解Helmholtz方程的特征问题，即求解的特征值和特征函数.数值模拟表明，此方法是可行的，并可以大大改善数值求解的效率.
WANGDan-xi(王丹溪) +1 more
doaj +1 more source
Research into nonlinear global orthogonal transformation of the acoustic waveguide(声波导中非线性全局正交变换的研究)
Zhejiang Daxue xuebao. Lixue ban, 2008 为能在带有极点的不平坦底部边界的声波导中实施快速步进计算Helmholtz方程，构造了几种能将弯曲底边界平坦化的非线性、非对称化全局坐标变换，这些变换一方面缓解了坐标曲线的局部“拥挤”状况，另一方面对步进计算中所涉及到的Helmholtz方程特征问题进行分析计算，提高了用Rayleigh迭代计算特征问题的效率，通过比较分析，指出了一个有效计算方法——分段步进法，为大步长计算波的传播提供了可靠的处理方法.
ZHUJian-xin(朱建新) +1 more
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Zhejiang Daxue xuebao. Lixue ban, 2007 在带有完美匹配层的有界区城中，由于改进的复Helmholtz方程的特征函数一般不具有正交性，故数值步进求解复方程时存在着局部基下坐标计算的困难.本文一方面推导出此复偏微分方程的共轭特征函数所满足的方程，并论证方程的特征函数与共轭特征函数正交之性质；另一面，给出局部基下坐标计算的简便公式，它可使步进计算保持高效率.数值模拟结果表明所提方法切实可行、有效.
ZHUJian-xin(朱建新) +1 more
doaj +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2004 为解决步进求解带有弯曲底边的声波导Helmholtz方程时局部收敛慢的问题，给出了一类非线性局部正交变换.数值模拟表明，若算子的特征值和特征向量采用Rayleigh迭代求解，则适当地选取这类变换，用于求解该方程，与深度方向的线性变换相比，步进计算的效率得到明显的改善.
HUANGYue-xia(黄越夏) +1 more
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Zhejiang Daxue xuebao. Lixue ban, 2009 无界且带有不平坦界面的声波导经坐标变换和完美匹配层截断,波的传播计算问题近似转化为在有界且带有平坦界面的声波导中数值求解改进Helmholtz方程,由于用步进算法解此改进复Helmholtz方程所涉及到的算子的特征函数一般不具有正交性,故在数值步进求解复方程时存在着局部基下坐标计算的困难.本文一方面推导出此复偏微分方程的共轭特征函数所满足的方程,并论证方程的特征函数与共轭特征函数正交之性质；另一方面,给出局部基下坐标计算的简便公式,它可使步进计算保持高效率.数值模拟结果表明所提方法切实可行、有效.
ZHUJian-xin(朱建新), RONGXiao(戎笑)
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Hyperspectral outcrop models for palaeoseismic studies
The Photogrammetric Record, Volume 34, Issue 168, Page 385-407, December 2019., 2019 To overcome the limitations of the traditional study of palaeoseismic trenches, a new workflow is presented that integrates infrared hyperspectral and photogrammetric data. This method was applied on two palaeoseismic trenches excavated across a post‐glacial fault scarp in northern Finnish Lapland.
Moritz Kirsch +19 more
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Zhejiang Daxue xuebao. Lixue ban, 2013 无界且带不平坦界面的声波导经局部正交变换和完美匹配层(PML)截断，波导计算问题可近似转化为有界且带有平坦界面的声波导的Helmholtz方程，由于利用PML进行截断，此方程为复偏微分方程，其特征函数系一般不具有正交性，故数值步进求解时，存在着局部基下坐标转换的困难.本文一方面运用共轭特征算子，通过其所对应的特征函数系与原特征函数系的正交性，给出了局部基下坐标转换的简便公式；另一方面，利用此简便公式，进行了声波导的步进计算，数值计算结果表明，所用方法切实可行.
RONGXiao(戎笑)
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