Results 51 to 60 of about 106,323 (223)
Fault diagnosis and fault-tolerant control for nonlinear systems with linear output structure [PDF]
Article describes the process of fault diagnosis and fault-tolerant control for nonlinear systems with linear output ...
Shen, L., Wang, H., Yue, H.
core +1 more source
Using incentive payments to promote human–carnivore coexistence
Abstract For many large carnivores, minimizing the financial burden they impose on local people is critical to their conservation. Incentive‐based programs that provide people with financial benefits for taking pro‐conservation actions or achieving conservation goals are a promising tool for promoting human–carnivore coexistence. Although the number of
Adam Pekor +9 more
wiley +1 more source
Curve desigh of multi-parameter uniform B-spline blending function of order four(多形状参数的四阶均匀B样条曲线设计)
给出带有四个形状参数的四阶均匀B样条调配函数,它以三次均匀B样条基函数为特殊情况.基于所给出的调配函数,得到带多个形状参数的分段多项式曲线的生成方法.通过改变形状参数的取值,可以调整曲线的形状.选取不同的形状参数值,可以得到不同位置的C2连续曲线,这些曲线与三次均匀B样条曲线有相同的端点性质,并且给出曲线设计的实例.
ZUOChuan-gui(左传桂) +1 more
doaj +1 more source
The design and development for X-ray absorption spectrum measurement system [PDF]
组织光学是生物医学光子学的理论基础,组织光学特性参数的测量是其最重要也最艰难的任务,生物组织在不同生理状态下的成分会发生变化,健康与病变组织对光的吸收和散射不同,其光学参数也会随着光的波长而变化,测定组织在不同生理状态下的光学参数就可以对疾病进行诊断甚至前期诊断,进而及时进行治疗。制约组织光学发展的一个很重要的因素就是,所用光源(紫外到红外波段)对组织的穿透能力有限,无法实现较深部位的探测,而X射线具有良好的穿透能力,因此把组织光学推广到X射线范围不失为一种疾病诊断的有效途径 ...
胡波
core
Abstract There exists a growing suite of technologies that support significant and exciting progress in biodiversity conservation and research. Citizen scientist participation is common in this research and often focuses on data collection and labeling.
Joycelyn Longdon +5 more
wiley +1 more source
Study on option pricing based on artificial intelligence [PDF]
期权理论是20世纪世界经济学领域最伟大的发现之一。由于期权具有良好的规避风险、风险投资和价值发现等功能,且表现出灵活性和多样性特点,故近30年来,特别是上个世纪90年代以来,期权成为最有活力的衍生金融产品,得到了迅速发展和广泛的应用。对于期权价格的正确定价不仅对于学术界而且对于金融市场的实际操作者来说都是十分重要的。目前已经有许多对于欧式期权定价的参数化模型,包括著名的Black-Scholes模型。但是由于有着一些不真实,与真实市场不协调矛盾的隐含参数,所以它们的定价效果并不如我们所期望的那么好 ...
张鸿彦
core
Abstract Constructed value of information (CVoI) is an expert elicitation decision‐analytic tool used to prioritize sources of uncertainty based on their potential to improve decision outcomes if resolved. Despite increased application of CVoI, the robustness of CVoI prioritization of sources of uncertainty relative to differences in expert elicitation
Kristin P. Davis +7 more
wiley +1 more source
整理了广东地区和华北地区的现场电力变压器实测色谱数据,根据数据特点选择相应的抽样方法,获得了各气体参量的数据样本。运用统计学中的非参数统计的方法对样本数据进行非参数检验,检验结果是各气体参量基本服从对数正态分布或者韦伯分布,同时获得了各气体参量所服从的各分布的分布函数以及相应的90%及95%分位点注意值。其中95%分位点注意值比国标和IEC中给出的气体参量注意值小,从而减少了对变压器故障的漏判。
赵崇智 +4 more
doaj
Finite Element Analysis for Maxwell's Eigenvalue Problems [PDF]
在微波工程中,波导和谐振腔都是十分重要的微波器件,这些微波器件广泛地用于 我们的现实生活中.在波导问题中,如果电磁波的频率给定,那么传播常数就是一个非常重要的物理参数.在谐振腔问题中,谐振频率是一个十分重要的物理参数.当波导横截面不规则或者填充有非均匀介质时,此时波导问题的解析解是很难找到的;当腔体的几何结构十分复杂或者填充有非均匀介质时,此时谐振腔问题的谐振频率的精确解也是很难找到的.但是我们往往需要知道这些微波工程器件的这些物理参数,所以通常采用数值方法去近似求解它们 ...
姜威
core
Abstract Achieving global conservation policy goals requires the ability to set and measure progress toward science‐based targets for biodiversity. The species threat abatement and restoration (STAR) metric was developed to enable actors to set science‐based targets for species.
Louise Mair +17 more
wiley +1 more source

