Results 91 to 100 of about 1,637,956 (389)

Evaluation of performance-enhancing drugs seized by Israeli enforcement agencies 2012–2017: implications for policy and regulatory change

Israel Journal of Health Policy Research, 2020
Background Illicit performance-enhancing substances are used mostly by athletes to enhance performance in sports, and by bodybuilders to gain muscle and body mass.
Hagit Bonny-Noach, Ronny Berkovitz, Barak Shapira   +2 more
doaj   +1 more source

Electonic transport properties of nitrate-doped carbon nanotube networks

, 2017
The conductivity of carbon nanotube (CNT) networks can be improved markedly by doping with nitric acid. In the present work, CNTs and junctions of CNTs functionalized with NO$_3$ molecules are investigated to understand the microscopic mechanism of ...
Havu, V., Jónsson, E. Ö., Ketolainen, T., Puska, M. J.   +3 more
core   +1 more source

Charge transfer and electronic doping in nitrogen-doped graphene [PDF]

Scientific Reports, 2015
AbstractUnderstanding the modification of the graphene’s electronic structure upon doping is crucial for enlarging its potential applications. We present a study of nitrogen-doped graphene samples on SiC(000"Equation missing") combining angle-resolved photoelectron spectroscopy, scanning tunneling microscopy and spectroscopy and X-ray photoelectron ...
Joucken, F., Tison, Yann, Le Fevre, P., Tejeda, A., Taleb-Ibrahimi, A., Conrad, E., Repain, V., Chacon, C., Bellec, Amandine, Girard, Y., Rousset, S., Ghijsen, J., Sporken, R., Amara, H., Ducastelle, F., Lagoute, J.   +15 more
openaire   +6 more sources

Wearable Haptic Feedback Interfaces for Augmenting Human Touch

Advanced Functional Materials, EarlyView.
The wearable haptic feedback interfaces enhance user experience in gaming, social media, biomedical instrumentation, and robotics by generating tactile sensations. This review discusses and categorizes current haptic feedback interfaces into force, thermal, and electrotactile stimulation‐based haptic feedback interfaces, elucidating their current ...
Shubham Patel, Zhoulyu Rao, Maggie Yang, Cunjiang Yu   +3 more
wiley   +1 more source

High‐Performance Low‐Emissivity Paints Enabled by N‐Doped Poly(benzodifurandione) (n‐PBDF) for Energy‐Efficient Buildings

Advanced Functional Materials, EarlyView.
This study introduces a scalable and colored low‐emissivity (low‐e) paint achieved by spraying an ultrathin n‐doped poly(benzodifurandione) (n‐PBDF) coating onto various colored substrates. The low‐e paint enhances thermal regulation by reducing mid‐infrared thermal emissivity to 0.19, thereby stabilizing indoor temperatures across diverse climates ...
Xiaojie Liu, Won‐June Lee, Daniel William Carne, Yanpei Tian, Andrea Felicelli, Yue Lei, Joseph A. Romo, Liyan You, Zixin Xiong, Orlando Gabriel Rivera Gonzalez, Abdulrahman Aljwirah, Qiaoqiang Gan, Jianguo Mei, Xiulin Ruan   +13 more
wiley   +1 more source

Electronic structures of doped BaFe$_2$As$_2$ materials: virtual crystal approximation versus super-cell approach

, 2015
Employing virtual crystal approximation and super-cell methods for doping, we have performed a comparative study of the electronic structures of various doped BaFe$_2$As$_2$ materials by first principles simulations.
Ghosh, Haranath, Sen, Smritijit
core   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Recent insights in the correlation between social media use, personality traits and exercise addiction: a literature review

Frontiers in Psychiatry
Introduction and aimThe excessive involvement in physical activity without stopping in between sessions despite injuries, the continuous thinking to exercise feeling insane thoughts and experiencing withdrawal symptoms are all characteristics of the ...
Adele Minutillo, Annagiulia Di Trana, Valeria Aquilina, Gerolama Maria Ciancio, Paolo Berretta, Nunzia La Maida   +5 more
doaj   +1 more source

Optimum doping achieves high quantum yields in GaAs photoemitters [PDF]

, 1971
Experimental data indicate that optimum doping exists. Measured quantum yield curves indicate optimum overall response is obtained in GaAs emitters with doping in high 10 to the 18th power per cu cm range.
Sonnenberg, H.
core   +1 more source

Efficient Metal‐Free Electrocatalysts from N‐Doped Carbon Nanomaterials: Mono‐Doping and Co‐Doping

Advances in Materials, 2018
N‐doped carbon nanomaterials have rapidly grown as the most important metal‐free catalysts in a wide range of chemical and electrochemical reactions. This current report summarizes the latest advances in N‐doped carbon electrocatalysts prepared by N mono‐
Kun Gao, Bin Wang, L. Tao, B. Cunning, Zhipan Zhang, Shuangyin Wang, R. Ruoff, L. Qu   +7 more
semanticscholar   +1 more source