Results 71 to 80 of about 164,663 (289)
Advanced Functional Materials, EarlyView.ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo +10 more
wiley +1 more source
Briefe aus England an seine Frau 1864 [PDF]
, 1929 Auszug aus: Anna von Helmholtz : ein Lebensbild in Briefen / hrsg. von Ellen von Siemens-Helmholtz. - Berlin. - Band 1.1929 Hermann Helmholtz fuhr im Frühjahr 1864 vier Wochen nach England. Er hielt sich in London, Oxford, Glasgow und Manchester auf und
Helmholtz, Hermann von
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Design, Construction, Test and Modeling of Triaxial Helmholtz Coil for Magnetic Tests of Satellite [PDF]
فصلنامه علوم و فناوری فضایی, 2016 In order to be sure from true function of satellite’s Attitude determination and Control Subsystem (ADCS) and its parts, some tests are needed to be done in part or subsystem level. One of the useful tools for doing these tests is Helmholtz Coil.
Seyed Mohammad Sadegh Mosvi +1 more
doaj
Novel Hyperbolic Homoclinic Solutions of the Helmholtz-Duffing Oscillators
Shock and Vibration, 2016 The exact and explicit homoclinic solution of the undamped Helmholtz-Duffing oscillator is derived by a presented hyperbolic function balance procedure.
Yang-Yang Chen +2 more
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Advanced Functional Materials, EarlyView.A mechanically programmable hydrogel for tissue engineering is developed by modulating the molecular threading density of poly(ethylene glycol) diacrylate‐β‐cyclodextrin (PEGDA‐β‐CD) polyrotaxane and combining it with β‐CD‐modified gelatin. The polyrotaxane‐guided transition from disordered pores to laminar microstructures enables precise tuning ...
Shiyi Chen +10 more
wiley +1 more source
Numerical solution of the two-dimensional Helmholtz equation with variable coefficients by the radial integration boundary integral and integro-differential equation methods [PDF]
, 2012 This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2012 Taylor & Francis.This paper presents new formulations of the boundary–domain integral equation (BDIE) and the boundary–domain integro-
Al-Jawary, MA, Wrobel, LC
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Conference Room Reverberation Time Correction Using Helmholtz Resonators Lined with Absorbers
Shock and Vibration, 2014 Echo and sound resonance in a conference room cause obscure speech and make listeners tired. Thus, the acoustical properties of a conference room are vitally important. The conference room 412 at Sharif University
Hossein Namvar Arefi +7 more
doaj +1 more source
Sensors, 2019 In this paper, an indirect method of measuring an analyte concentration in a test solution using the resonant frequency change of a Helmholtz resonator is proposed, using a novel architecture of Helmholtz resonator filled with two kinds of fluids (fixed ...
Yugang Chen, Yong-Hwa Park
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Bio‐Inspired Artificial Ionic Mechanoreceptor
Advanced Functional Materials, EarlyView.A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari +4 more
wiley +1 more source
THE DEBT OF OTOLOGY TO HELMHOLTZ. [PDF]
JAMA: The Journal of the American Medical Association, 1902 The influence of Helmholtz upon otology is almost incalculable, although signalized by no instrument like the ophthalmoscope with its epoch-making application and its huge clinical field. Reflectors of various kinds to illuminate the aural, nasal and pharyngeal cavities had been somewhat used before his day and received but moderate impulse directly ...
openaire +1 more source