Results 71 to 80 of about 7,576,309 (147)

Discriminant validity and interrelations of conceptual and procedural knowledge in fractions and algebra: Evidence from confirmatory factor analysis

British Journal of Educational Psychology, Volume 96, Issue 3, Page 1396-1418, September 2026.
Abstract Background Conceptual and procedural knowledge are two distinct types of mathematical knowledge. Measuring them with sufficient discriminant validity is challenging because they are typically highly correlated. Prior studies have demonstrated discriminant validity of paper‐and‐pencil measures separately for fractions and algebra.
Michael D'Erchie, Claire L. Forsmann, Michael Schneider, Andreas Obersteiner   +3 more
wiley   +1 more source

Research Status and Perspective of Fault Current Limiter

Kongzhi Yu Xinxi Jishu, 2011
It summarizes the theory and categories of fault current limiter (FCL) as well as its key technologies, describes the research status and products of FCL both in China and abroad. Technical requirements of FCL in urban grid application are analyzed, upon
谢炜, 李欣, 戴朝波
doaj  

Multidisciplinary Exploration of Computed‐Tomographic and Ancient‐DNA Data of an Iron Age Skull From Latvia With Multiple Lytic Bone Lesions: Differential Diagnosis Between Metastatic Carcinoma, Multiple Myeloma and Skeletal Tuberculosis

Ecology and Evolution, Volume 16, Issue 7, July 2026.
In this study we used a combined computed tomographic and archaeogenetic approach to analyse a skull and vertebra with lytic lesions from a disturbed grave in the Čunkāni‐Dreņģeri cemetery in Latvia, dated to 10th century CE. Both methodologies were used to evaluate a proposed differential diagnosis of multiple myeloma, metastatic carcinoma and bone ...
Alise Akermane‐Pokšāne, Jānis Ķimsis, Elīna Pētersone‐Gordina, Antonija Vilcāne, Guntis Gerhards, Mārtiņš Pēterfelds, Renāte Ranka   +6 more
wiley   +1 more source

Ferromagnetically Shielded Fault Current Limiter (FS‐FCL) Evaluation in Power Line

IET Generation, Transmission & Distribution
ABSTRACT This paper presents a novel ferromagnetically shielded fault current limiter (FS‐FCL) configuration and control strategy for power systems. The proposed system introduces a controlled DC‐reactor design that effectively limits fault currents without significantly affecting the system voltage during normal operation.
Kamran Ghorbanyan, Selim Acar
openaire   +1 more source

Contralateral Thermal Pain and Naturally Occurring Muscle Pain Have Different Effects on Force Production During a Fixed Perceived Effort Handgrip Task

European Journal of Pain, Volume 30, Issue 6, July 2026.
ABSTRACT Background In the presence of pain, performance during imposed workload motor tasks may be maintained at the cost of a higher perceived effort. This study investigated how experimentally induced contralateral thermal pain and naturally occurring muscle pain influence force production during a fixed perceived effort task.
Callum A. O'Malley, Thomas Mangin, Maxime Bergevin, Ilaria Monti, Christopher L. Fullerton, Alexis R. Mauger, Pierre Rainville, Benjamin Pageaux   +7 more
wiley   +1 more source

Reversal of economic integration: evidence from European Union enlargement

The Scandinavian Journal of Economics, Volume 128, Issue 3, Page 660-685, July 2026.
Abstract Empirical models of trade agreements implicitly assume that withdrawal from a trade agreement has an equal and opposite trade effect as accession (i.e., symmetry). With increasing opposition to international economic cooperation, it becomes urgent to test this assumption.
Hinnerk Gnutzmann, Arevik Gnutzmann‐Mkrtchyan, Tobias Korn   +2 more
wiley   +1 more source

Loss Consideration of Magnetic Fault Current Limiter [PDF]

, 2009
Current suppression devices such as fault current limiter (FCL), which have high impedance under fault conditions and low impedance under normal conditions, are required to reduce excessive current in power distribution lines, when fault such as short ...
山田, 外史, K., Yotsutsuji, Sotoshi, Yamada, Masayoshi, Iwahara, 岩原, 正吉, M., Kitazawa   +5 more
core   +1 more source

Backbone‐Controlled Ion‐Side Chain Accessibility in Conjugated Polymers for Organic Electrochemical Synaptic Transistors

Advanced Functional Materials, Volume 36, Issue 50, 22 June 2026.
Backbone modulation in glycolated conjugated polymers governs ion accessibility to side chains, strengthes anion adsorption, and suppresses back‐diffusion. As the number of thiophene units increases, structural reorganization, retention, and synaptic plasticity are enhanced, leading to improved neuromorphic performance in electrolyte‐gated organic ...
Junho Sung, Sein Chung, Byeongjun Jeon, Donghwa Lee, Myungjin An, Jiyeong Shin, Yoohyeon Jang, Donghoo Won, Changduk Yang, Bumjoon Seo, Eunho Lee   +10 more
wiley   +1 more source

Optimizing 3D Bin Packing of Heterogeneous Objects Using Continuous Transformations in SE(3)

Advanced Intelligent Systems, Volume 8, Issue 6, June 2026.
This article presents a method for solving the three‐dimensional bin packing problem for heterogeneous objects using continuous rigid‐body transformations in SE(3). A heuristic optimization framework combines signed‐distance functions, neural network approximations, point‐cloud bin modeling, and physics simulation to ensure feasibility and stability ...
Michele Angelini, Marco Carricato
wiley   +1 more source

Research on the Lightning Intruding Overvoltage and Protection Measures of 500 kV AC Fault Current Limiter

Energies, 2019
As one of the key technologies to solve the problem of high short-circuit current, the fault current limiter (FCL) has become a research hotspot in China and abroad.
Changfu Chen, Yongxia Han, Junxiang Liu, Wenxiong Mo, Zhao Yuan, Jianning Huang, Haibo Su, Xiancong Zhang, Kaijian Wu   +8 more
doaj   +1 more source