Results 21 to 30 of about 172,210 (259)
Thermal Cycle Cracking and Surface Modification of Gray Cast Iron Brake Drum [PDF]
Zhengzhou Daxue xuebao. Gongxue ban, 2023 In order to solve the problem of brake drum failure caused by frequent hot and cold cycles during continuous braking of heavy truck, a surface modification method, i.e., friction stir welding, was proposed to improve the thermal cracking resistance of ...
LI Jian +5 more
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The role of quench back in quench protection of a superconducting solenoid [PDF]
Cryogenics, 1984 This report demonstrates the role of quench back in the quench protection of high current density superconducting solenoid magnets with well-coupled shorted secondary circuits. The phenomenon of ‘quench back’ can be used to greatly reduce the size of an external quench protection resistor or even to eliminate the need for an external quench protection ...
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Physical Review Letters, 1988 We argue that for ballistic transport through a narrow conductor (of width $W$) a threshold magnetic field exists below which the Hall resistance vanishes. The field is of order $(\frac{h}{e})k_{\mathrm{F}}^{}{}_{}{}^{\ensuremath{-}1}{W}^{\ensuremath{-}3}$, and is reached when the transverse wavelength of quantum edge states becomes comparable to the ...
Beenakker, C.W.J., Houten, H. van
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Thermally induced phase transformations of Al93Fe4Nb3 and Al90Fe7Nb3 quenched alloys
Materials Research Express, 2020 Al–based rapidly quenched alloys of composition Al _90 Fe _7 Nb _3 and Al _93 Fe _4 Nb _3 were studied by Mӧssbauer spectroscopy, X–ray powder diffraction and differential scanning calorimetry methods.
O V Shved +3 more
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FRET-Based Quantum Dot Immunoassay for Rapid and Sensitive Detection of Aspergillus amstelodami
Sensors, 2011 In this study, a fluorescence resonance energy transfer (FRET)-based quantum dot (QD) immunoassay for detection and identification of Aspergillus amstelodami was developed.
Michele D. Kattke +4 more
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Surfaces, 2020 The photoluminescence (PL) response of porous Si has potential applications in a number of sensor and bioimaging techniques. However, many questions still remain regarding how to stabilize and enhance the PL signal, as well as how PL responds to ...
Kurt W. Kolasinski +3 more
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Royal Society Open Science, 2021 We report the detection and quantification of important ulcerative colitis drugs olsalazine (OLS) and sulfasalazine (SUL) by the spectrofluorometric method.
Manar Tolba, Heba Elmansi
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Exciton-like luminescence of KCl matrix under thermoelastic, local and uniaxial deformation
Eurasian Journal of Physics and Functional Materials, 2022 The radiative relaxation of exciton-like formations in KCl-Na single crystal has been studied by exper-imental methods of luminescent spectroscopy. The amplifying effect of the radiation intensity with a maximum at 2.8 eV up to 500 times as compared to ...
K. Shunkeyev +3 more
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Journal of Applied Science and EngineeringIn a corrosive environment, it is crucial to increase the hardness and corrosion resistance of mild steel bucket excavators. Making a hard layer of nickel-chromium (NiCr) alloy by the deposition method is one of the many approaches to achieve this.
Sopiyan +5 more
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Effect of Necking Behavior and of Gap Size on the Cooling Rate in Hot Stamping [PDF]
Materials Research, 2016 In this study, a tailored die quenching experimental method using low closing pressures and an aluminum flat die was developed in order to evaluate the effects of the gap size on the cooling rate in the hot stamping process of a 22MnB5 steel grade ...
André Olah Neto +3 more
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