Results 11 to 20 of about 1,262,625 (155)

波片型偏振控制器波长相关性误差分析

Guangtongxin yanjiu, 2008
偏振控制器在相干光纤通信、高速光纤通信以及光纤传感等领域具有十分重要的作用,由于要求它具有高的控制精度,因此对偏振控制器进行误差分析是必要的。文章针对HQQ型偏振控制器的波长相关性进行了误差分析,并通过仿真得到了输出偏振态的方位角和椭率角随波长变化的关系,这一结论对我们进行偏振控制器误差补偿有重要的意义。
赵娜, 方强, 刘继红, 李小妍
doaj   +2 more sources

A discussion of critical errors in a longitudinal study on the deterrent effect of drug‐induced homicide laws on opioid‐related mortality across 92 counties and the District of Columbia in the United States

World Medical &Health Policy, Volume 15, Issue 4, Page 587-612, December 2023., 2023
Abstract Drug overdose claimed more than 100,000 lives in the United States in 2021. Drug‐induced homicide (DIH) laws create specific criminal liability for individuals who provide drugs that cause or contribute to the death of another person. DIH prosecutions in the United States have increased substantially over the past decade despite the absence of
Jennifer J. Carroll, Leah Bevis, Taleed El‐Sabawi, Mary Figgatt, Nabarun Dasgupta, Leo Beletsky, Amy J. Leiberman, Ashleigh Dennis, Corey S. Davis   +8 more
wiley   +1 more source

BEYOND CONVENTIONAL BOUNDARIES

World Affairs, Volume 186, Issue 3, Page 747-775, Fall 2023., 2023
According to conventional wisdom, organized criminal activity is perpetrated primarily by non‐state, private actors who are occasionally [or not] protected by corrupt government officials. From this perspective, a hard distinction is made between those who provide protection to criminals (e.g., politicians or law enforcement officials) and the ...
Alexander Kupatadze
wiley   +1 more source

Infrastructure as Inherited Knowledge: Artificial Intelligence and the Governance of Long‐Life Infrastructure

Journal of Critical Infrastructure Policy, Volume 8, Issue 1, Spring/Summer 2027.
ABSTRACT Epistemic orphaning, responsibility drift, loss of institutional memory, and non‐stationarity are not new problems in infrastructure governance—they have accompanied long‐life infrastructure throughout its history. What artificial intelligence changes is not the existence of these problems but their scale, opacity, and the structural ...
Priscilla P. Nelson
wiley   +1 more source

Machine Learning‐Driven Discovery and Experimental Validation of Effective Precursor Additives in Perovskite Solar Cells

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Rationally selection of precursor additives during perovskite crystallization is essential for obtaining high‐quality films and achieving high‐performance perovskite solar cells (PSCs). However, the discovery and optimization of effective additives still rely heavily on time‐consuming and costly trial‐and‐error experiments.
Zhimin Feng, Kuo Wang, Di Huang, Jiangtao Wu, Ruicheng Li, Yi Huang, Bin Fan, Jiaojiao Liang, Xueping Wu, Dan Li, Jaemin Kong, Yang Zhang, Juan Meng   +12 more
wiley   +1 more source

A Critical Analysis of Secondary Victims' Preferred Method of Reporting Crime in a South African Township

Sexuality, Gender &Policy, Volume 9, Issue 3, August 2026.
ABSTRACT Digital communication has facilitated freedom of expression in various contexts worldwide. Digitalized communication is a form of expression that has become the norm worldwide despite cybercrime and other challenges. Communication preferences for social media determine attitudes to reporting crime.
Nomsa Ingrid Zikalala
wiley   +1 more source

Transmasculine Pregnancy and the Limits of Reproductive Citizenship: Cisnormativity and Governance in Healthcare Systems in Brazil

Sexuality, Gender &Policy, Volume 9, Issue 3, August 2026.
ABSTRACT This article examines transmasculine pregnancy as a critical lens through which to analyze the intersections of cisnormativity, reproductive governance, and reproductive citizenship within healthcare systems. While existing research has documented barriers faced by transgender populations, less attention has been paid to how institutional and ...
Letícia Carolina Boffi, Manoel Antônio dos Santos   +1 more
wiley   +1 more source

Providing regular and frequent maps of losses and gains of farmland birds based on European monitoring data

Conservation Biology, Volume 40, Issue 4, August 2026.
Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando, Guillem Pocull, Sara Fraixedas, Anna Gamero, David Martí, Oriol Solà, Dani Villero, Verena Keller, Petr Voříšek, Alena Klvaňová, Gabriel Gargallo, Vitalie Ajder, Marc Anton, Ainars Aunins, Dawn Balmer, Mattia Brambilla, Tomasz Chodkiewicz, Przemysław Chylarecki, Cristi Domșa, Vlatka Dumbović Mazal, Virginia Escandell, Néstor Fernández, Ruud Foppen, Juan Gallego‐Zamorano, Carlos Godinho, Irene Guerrero, Christina Ieronymidou, Frédéric Jiguet, Aleksi Lehikoinen, Primož Kmecl, Peter Knaus, Lechosław Kuczyński, Åke Lindström, Qenan Maxhuni, Blas Molina, Jean‐Yves Paquet, Maria Luisa Paracchini, Danae Portolou, Draženko Z. Rajković, Dimitrije Radišić, Jiří Reif, Paul Shimmings, Henk Sierdsema, Jovica Sjeničić, Karel Šťastný, Bård G. Stokke, Nicolas Strebel, Zoltán D. Szabó, Tibor Szép, Norbert Teufelbauer, Nicolas Titeux, Sven Trautmann, Judit Veres‐Szászkac, Thomas Vikstrøm, Lluís Brotons   +54 more
wiley   +1 more source

倾角函数递推公式的误差传递分析

, 1998
在倾角函数递推关系这个题目上，一些研究者做过工作，如Ｃｈａｌｌｅ，Ａ（１９６９），Ｒ．Ｈ．Ｇｏｏｇｉｎｇ（１９７１），Ｊ．Ａ．Ｃａｍｐｂｅｌｌ（１９７２），Ｇ．Ｅ．Ｏ．Ｇｉａｃａｇｌｉａ（１９７６）和童付（１９７９）。最好的结果由是章付获得的，递推关系仅由二个或三个相邻的函数来表达。然而，当倾角较小时，童付的公式存在严重的计算误差传递．本文导出了一个分析公式来估计此种计算误差传递 ...
邓幼俊
core   +5 more sources

数字水准仪在测量过程中的误差来源及分析

, 2017
数字水准仪属于水准仪的重要组成部分，虽然在测量中具有读数客观、速度较快、精度较高、效率较高等特点，但是仍会受到诸多因素的影响导致测量的结果存在误差。为了有效降低数字水准仪在测量过程中产生误差，现有必要对误差来源进行分析。论文在明确数字水准仪的工作原理以及测量中的误差后，具体分析了影响其测量过程中出现误差的几点因素。
培效 林
core   +1 more source