Results 121 to 130 of about 465,115 (353)

Az élelmiszergazdaság külkereskedelme 2013. január-szeptember [PDF]

, 2013
Magyarország 2013. I-III. negyedévi élelmiszer-gazdasági kivitelének értéke 5922 millió euró, behozatalának értéke 3339 millió euró volt. A kivitel értéke 1,5 százalékkal kevesebb, a behozatalé 4,7 százalékkal több volt, mint 2012 azonos időszakában.
Kruppa, Bertalan, Varga, Éva
core   +2 more sources

Chain Versus Ring: Characterization of a Meta‐Phenylene Ladder Polymer and Its Octameric Macrocycle

Chemistry – A European Journal, EarlyView.
The synthesis and comprehensive spectral and photophysical analysis of a methyl‐substituted ladder meta‐phenylene macrocycle (MeLMMP) and its polymer analogue (MeLPMP) show that, despite differing topologies (macrocycle vs. polymer), both display nearly identical electronic and photophysical properties due to cross‐conjugation.
Paulo D. Nunes Barradas, Hauke J. Jötten, Ngoc B. B. Nguyen, Ullrich Scherf, J. Sérgio de Seixas de Melo   +4 more
wiley   +1 more source

Transport d'Energie De Gromo A 40 000 Volts [PDF]

, 1905

openalex   +1 more source

Sustainable Live Sound Monitoring and Classification System Enabled by a Triboelectric Nanogenerator and Machine Learning Techniques

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A high‐performance Triboelectric Nanogenerator (TENG) acoustic sensor using polyimine/graphite polypropylene (PI/GP) was developed for real‐time, sustainable sound monitoring and classification. The self‐powered device delivers 25.67 μW output power, 92.7% accuracy with MobileNet V1, and powers a wireless transmission circuit, demonstrating dual ...
Majid Haji Bagheri, Araz Rajabi‐Abhari, Owen Gibbs, Pengcheng Xi, Asif Abdullah Khan, Fangzheng Huang, Md Soyaeb Hassan, Ning Yan, Dayan Ban   +8 more
wiley   +1 more source

Model Quality and Measurement Density Impact on Volt/Volt Ampere Reactive Optimization Performance

Energies
The operation of the utility grid is being reshaped by the continuous addition of distributed energy resources and advanced metering infrastructure, which challenge existing grid control strategies.
Ismael Mendoza, Annabelle Pratt, Harsha Vardhana Padullaparti, Soumya Tiwari, Murali Baggu   +4 more
doaj   +1 more source

Magyar-német katonai kapcsolatok az Antall-kormány időszakában, különös tekintettel az NVA-fegyverszállítás kérdésére [PDF]

, 2015
Jelen cikk célja bemutatni a katonai, katonadiplomáciai kapcsolatokat Magyarország és (Nyugat-)Németország között az Antall-kormány időszakában. Bonn a Honvédség tisztjeinek a képzése területén – de más ügyekben is – komoly segítséget és támogatást ...
Hettyey, András
core  

Photoelectrochemical Charge Excitation Enhancement by Triboelectric Nanogenerator for High‐Efficiency Self‐Powered Anticorrosion

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The synergy of solar and mechanical energy enables a self‐powered photoelectrochemical cathodic protection system, which enhances carrier separation for efficient and sustainable anticorrosion. Harnessing the synergy of solar and mechanical energy presents a potential strategy for high‐efficiency photoelectrochemical cathodic protection.
Youbo Nan, Xiutong Wang, Xiaofan Zhai, Weijie Fan, Yanan Sun, Hui Zhou, Yanliang Huang   +6 more
wiley   +1 more source

Phase detector assembly Patent [PDF]

, 1965
Detector assembly for discriminating first signal with respect to presence or absence of second signal at time of occurrence of first ...
Anderson, G. D.
core   +1 more source

No Charging but Protection: Lifetime Prolongation of Spontaneously‐polarized Electrets for Energy Harvesting Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A bilayer protection approach is proposed for slowing down the surface potential decay of thin films of spontaneously‐polarized electret materials. The electret and the protective films are characterized, and the protection effectiveness is investigated under the effects of light illumination, water contact and mechanical impact.
Seyedali Sabzpoushan, Henry Juncker, Peter Woias   +2 more
wiley   +1 more source

Study on Technology of Using Semiconductor Diode Volt-Ampere Characteristic to Test Langmuir Probe Performance [PDF]

, 2015
Chao Liu, Yibin GUAN, Aibing Zhang, Yueqiang Sun, Jinbao LIANG, Xiangzhi Zheng, Jianjing DING, Linggao Kong, Z. Ryan Tian, Wenjing WANG   +9 more
openalex   +1 more source