Results 21 to 30 of about 123,713 (268)
Adjusting for expected adjusted effect [PDF]
, 2019 The point that adjustment for confounders do not always guarantee protection against spurious findings and type 1-errors has been made before. The present simulation study indicates that for traditional regression methods, this risk is accentuated by a large sample size, low reliability in the measurement of the confounder, and high reliability in the ...
Ingre , Michael +2 more
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Design and research of an ultra-wideband metal antenna with low radar cross section
Dianzi Jishu Yingyong, 2018 An ultra-wideband metal antenna with low radar cross section is proposed. The antenna adopts the metal Vivaldi as the radiation element, and utilizes a new-type frequency selective surface structure to reduce the radar cross section within the working ...
Zhang Qingchun +5 more
doaj +1 more source
Research and Application of Grid-Connected Operation Standard for Adjustable Load
发电技术, 2022 In the “dual carbon” campaign, adjustable load is an emerging adjustable resource for power grids. 13 power industry standards in the series of “Technical Specifications for Adjustable Load Grid-connected Operation and Control” was organized and carried ...
LENG Xiwu, LIU Chuang, HE Lei, XING Jian
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On the ills of adjustment [PDF]
Journal of Development Economics, 1995 Abstract We analyze market impediments to the process of structural adjustment. We focus on incomplete contract inefficiencies in the transactions between workers and firms that render the quasi-rents from ‘specific’ investment appropriable. During adjusment, the result is a depressed rate of creation of the new productive structure and excessive ...
Caballero, Ricardo J. +1 more
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A novel three-point hitch dynamometer to measure the draft requirement of mounted implements
Research in Agricultural Engineering, 2011 An adjustable three-point hitch dynamometer with a draft capacity of 50 kN was developed to measure forces on the tractor and mounted implements. The design concept of the dynamometer was based on two linkage frames mounted between tractor links and the ...
M. Askari +4 more
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A dual cam system for four-bar motion generation with adjustable length crank and follower links
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2021 The objective in planar four-bar motion generation is to calculate the linkage dimensions required to achieve a group of prescribed coupler positions. For a given planar four-bar motion generator however, the rolling motion of its moving centrode over ...
Wen-Tzong LEE +2 more
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Intereconomics, 1993 The classical approach towards adjustment has proved to have considerable shortcomings, particularly in connection with supply response issues and the conditions for re-establishing sustainable growth. The following article concludes that sustainable stabilisation and adjustment require a revised sequencing of policies, and outlines the main ...
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Tobacco Induced Diseases, 2023 Introduction Electronic nicotine delivery system (ENDS) and liquid characteristics affect nicotine and toxicant exposure and use behaviors. Little is known about how adults who frequently use ENDS transition between ENDS device/liquid groupings ...
Qinghua Nian +6 more
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Recreational Mathematics Magazine, 2021 Abstract In this paper we consider a scenario where there are several algorithms for solving a given problem. Each algorithm is associated with a probability of success and a cost, and there is also a penalty for failing to solve the problem.
Shlomo Moran, Irad Yavneh
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Design of an Electrically Tunable Micro-Lens Based on Graded Photonic Crystal
Crystals, 2018 A micro-lens with an adjustable focal length (FL) is designed by using Graded Photonic Crystal (GPC) structures and a Polymer Dispersed Liquid Crystal (PDLC) material.
YongLe Qi +4 more
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