Results 91 to 100 of about 1,320,375 (296)

Automatic compensation system for impedance measurement [PDF]

, 2002
This paper deals with the realization of the four-pair terminal definition of impedance standards. A simple, though reliable, system is described that allows an automatic compensation of the voltage at the low potential port of impedance standards to be ...
VALLAN A, PARVIS M, CALLEGARO, LUCA, Parvis, Marco, Carullo, Alessio, Vallan, Alberto, CALLEGARO L., Callegaro, L., CARULLO A, A. Vallan, A. Carullo, L. Callegaro, M. Parvis   +12 more
core   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Stability Analysis and Control Design for Hybrid AC-DC More-Electric Aircraft Power Systems [PDF]

, 2013
This thesis studies the stability of a more-electric aircraft (MEA) power system with hybrid converters and loads, and proposes a control design method using state feedback.
Li, Xiao
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Experimental Study on Impedance Control for the Five-Finger Dexterous Robot Hand DLR-HIT II [PDF]

, 2010
This paper presents experimental results on the five-finger dexterous robot hand DLR-HIT II, with Cartesian impedance control based on joint torque and nonlinearity compensation for elastic dexterous robot joints.
Wimböck, Thomas, Lii, Neal Y., Jin, Minghee, Chen, Zhaopeng, Fan, Shaowei, Borst, Christoph, Liu, Hong, N Y Lii, T Wimboeck, null Hong Liu, null Minghe Jin, null Zhaopeng Chen, C H Borst, null Shaowei Fan   +13 more
core   +1 more source

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

Advanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source

Competency in home body fat monitoring by portable devices based on bioelectrical impedance analysis: A pilot study

Journal of Education and Health Promotion, 2019
INTRODUCTION: With the advancement of bioelectrical impedance analysis method, body fat can be estimated with portable devices at home. These devices are popular in home body fat monitoring (HBFM).
Himel Mondal, Shaikat Mondal, Chayan Baidya   +2 more
doaj   +1 more source

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

Advanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang, Jianxiang Zhao, Zhaoqi Chen, Hao Gong, Yinsen Yan, Junlei Tao, Yong Yang   +6 more
wiley   +1 more source

Testing an Impedance Non-destructive Method to Evaluate Steel-Fiber Concrete Samples

Measurement Science Review, 2018
Steel-fiber reinforced concrete is a composite material characterized by outstanding tensile properties and resistance to the development of cracks. The concrete, however, exhibits such characteristics only on the condition that the steel fibers in the ...
Komarkova Tereza, Fiala Pavel, Steinbauer Miloslav, Roubal Zdenek   +3 more
doaj   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

Resonances in the driving-point impedance of an electric dipole in the ionosphere [PDF]

, 1967
Resonances in driving point impedance of electric dipole antenna in ...
Blair, W. E.
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