Results 11 to 20 of about 1,338,890 (129)

Auto-focus technology and its application based on image processing [PDF]

open access: yes, 2009
Auto-focusing technique is an important method to improve the precision,intelligentization,automatization for the indentation diameter measurement.The paper introduces an auto-focus method of indentation diameter measurement based on image processing ...
Chen, Xiaomei, Yang, Tao, Zuo, Yong
core   +3 more sources

自由飞试验模型运动参数提取方法

open access: yes, 2013
风洞自由飞试验技术由于没有支撑系统的干扰,能够较真实的模拟飞行状态,在飞行器动/静稳定性研究中具有独特的优势。利用高速相机记录模型的运动轨迹,提取模型运动参数后便可获得模型的气动参数。本文对提取10°锥模型姿态角、质心运动轨迹等运动特征参数的关键方法进行了详细介绍。该方法在JF-8A 高超声速风洞中开展的相关实验中得到了应用 ...
姜宗林, 苑朝凯, 孙英英
core   +2 more sources

Vocabulary Strategy Instruction in the Argentine EFL Context: Teachers’ Perspectives and Practices

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Despite extensive research on vocabulary strategy instruction (VSI), little has been known about teachers’ perspectives on how it is understood and implemented in practice. This study investigated Argentinian EFL teachers’ priorities in vocabulary instruction, their perceived knowledge of learner strategies for spoken vocabulary, and factors ...
Isobel Kai‐Hui Wang, Andrew D. Cohen
wiley   +1 more source

Co‐Teaching in a Virtual Intensive Study Language Programme: Insights From Team Ethnography

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT As virtual study abroad becomes an increasingly important form of international education, little is known about how transnational teaching is organised and sustained across institutions. Using activity theory as an analytical framework and team ethnography as methodology, this study examines a virtual intensive study (VIS) programme delivered
Zhu Hua   +7 more
wiley   +1 more source

飞行器稳定性导数的参数辨识

open access: yes, 2016
静、动态稳定性特性是在飞行器设计过程中关心的重要问题,它们是飞行器控制系统设计、操纵及稳定性分析的重要参数。飞行器在配平攻角处的静、动态稳定性参数决定了飞行器的运动形态,即飞行器能否稳定在配平攻角,如果不能稳定在配平攻角 ...
杨国伟, 聂雪媛
core   +2 more sources

Algorithmic Literacy and Quotidian Curation Practices: Rethinking User Agency in the Social Media Regulation Era

open access: yesPolicy &Internet, Volume 18, Issue 4, December 2026.
ABSTRACT This paper examines the practices ordinary social media users employ to influence the content served to them by platform algorithms, and the relationship between these practices and levels of algorithmic literacy. Practices were documented across TikTok, Facebook, Instagram, Twitter (now X), YouTube and Reddit during 65 sessions, conducted as ...
Agata Stepnik, Joanne Gray
wiley   +1 more source

Revealing the Roles of Electrolyte Concentration on Transition Metal Dissolution and Reaction Pathway of Anion Adsorption Pseudocapacitance

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Conventional lithium‐ion battery cathodes predominantly rely on reversible lithium intercalation in bulk, which inevitably induces phase transitions, transition metal migration, and voltage decay. Electrolytic anion adsorption pseudocapacitance provides a chance for bypassing these issues via a surface‐dominated reaction, especially in ...
Hongjin Ren   +10 more
wiley   +1 more source

High‐Throughput Development of Advanced Metallic Glasses via Compositionally Graded Thin‐Film Combinatorial Strategy

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Advanced metallic glasses, leveraging their ultrahigh strength, excellent corrosion resistance, superior soft magnetic properties and good biocompatibility, have gradually become indispensable strategic cornerstones in critical fields such as aerospace, electronic information and energy power. This unique combination of properties enables them
Yizhou Liu   +11 more
wiley   +1 more source

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

open access: yesSexuality, 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

Constructed value of information with iterative scoring and parametric uncertainty to identify management‐relevant research priorities for a declining raptor species

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
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

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