Results 81 to 90 of about 2,327 (266)

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

Advanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Critical eye-fusion frequency behavior in national track and field preselection athletes/Comportamiento de la frecuencia crítica de fusión ocular en atletas de carreras de la preselección nacional de atletismo

Podium, 2022
The correct combination of the volume and intensity of the stimuli of training loads and the control of the impact that they have on the organism of the athletes constitute two of the aspects that awaken more interest in the high performance sport.
Larién López Rodríguez
doaj  

Multifaceted Roles of Tantalum in Promoting the Thermoelectric Performance of Mg3(Sb,Bi)2 Based Materials

Advanced Science, EarlyView.
A multifunctional tantalum incorporation strategy enables simultaneous tuning of carrier concentration, mitigation of grain‐boundary scattering, and enhanced phonon scattering in Mg3(Sb,Bi)2. These synergistic effects markedly improve carrier mobility and suppress lattice thermal conductivity, yielding both high material zT and high module conversion ...
Guangmeng You, Jingdan Lei, Kai Xu, Yuntian Fu, Xueke Gu, Chengxiao Peng, Zhen Wang, Jing Chen, Kunpeng Zhao, Chao Wang   +9 more
wiley   +1 more source

Wavelength‐Dependent Photobiomodulation Regulates Macrophage Polarization via Mitochondrial Dynamics and Metabolic Reprogramming

Advanced Science, EarlyView.
Light wavelength encodes distinct macrophage fates through mitochondrial and metabolic remodeling. Red 625 nm irradiation induces glycolysis, mitochondrial fission, and M1 polarization, whereas near‐infrared 850 nm irradiation promotes fatty acid oxidation, mitochondrial fusion, and M2 polarization.
Qiusheng Shi, Hao Jia, Jianfei Dong, Linhao Li, Jingqi Cao, Xun Chen, Zhenzhen Jia, Jing Na, Zhijie Yang, Xinyuan Chen, Yubo Fan, Shuhua Yue, Lisha Zheng   +12 more
wiley   +1 more source

Scattering Improves Temporal Resolution of Vision: A Pilot Study on Brain Activity

Photonics
Temporal vision is a vital aspect of human perception, encompassing the ability to detect changes in light and motion over time. Optical scattering, or straylight, influences temporal visual acuity and the critical flicker fusion (CFF) threshold, with ...
Francisco J. Ávila
doaj   +1 more source

Multi‐Targeting Carnosic Acid Kills Drug‐Resistant Helicobacter pylori With Narrow‐Spectrum Activity

Advanced Science, EarlyView.
Carnosic acid selectively eradicates drug‐resistant Helicobacter pylori through a multi‐targeted mechanism involving urease inhibition, membrane disruption, and biofilm eradication. It exhibits no detectable resistance, potent in vivo efficacy, and minimal impact on gut microbiota, positioning it as a promising narrow‐spectrum lead compound against ...
Yuefan Bai, Hongming Huang, Xudong Hang, Shanwei Hu, Qian Tong, Jingchen Xu, Jia Jia, Hongkai Bi   +7 more
wiley   +1 more source

Pengembangan Alat Pengukuran Kelelahan Mental Berbasis Uji Flicker

Jurnal Teknik Industri, 2016
Previous studies have been conducted to measure fatigue using flicker test. However, the validity of the device is still unknown empirically. This study proposed a modification of fatigue measuring apparatus based on flicker test.
Yassierli Yassierli, Atya Nur Aisha, Azi Ginanjar Nugraha   +2 more
doaj  

Effect of Smartphone usage on Visual Fatigue Assessed by Critical Flicker Fusion Frequency among MBBS Students Aged 18-25 Years: A Pre-post Experimental Design [PDF]

Journal of Clinical and Diagnostic Research
Introduction: Prolonged smartphone usage has been linked to visual fatigue, primarily due to continuous exposure to blue light emitted from screens. Critical Flicker Fusion Frequency (CFFF) is a well-established physiological marker for assessing visual ...
SL Bhavisha, K Prabhavathi, D Gunaseelan, A Saravanan, K Thamarai Selvi   +4 more
doaj   +1 more source

Toward a Rational Design of Conjugated Copolymers with Oxygenated Side Chains for Boosting Thermoelectric Properties

Advanced Energy Materials, EarlyView.
The molecular design strategy that integrates both side chain and backbone engineering in diketopyrrolopyrrole‐based conjugated polymers to identify the optimal balance between doping efficiency and microstructural order is demonstrated. Comprehensive spectroscopic, electrochemical, morphological, and structural characterizations reveal that the ...
Taewoong Han, Suhui Sim, Hoimin Kim, Taewoong Yoon, Hyungju Ahn, Seungjoo Chang, Namgyu Park, Hajeong Kim, Shabaz Alam, Dongki Lee, Sungjun Park, Sungjoo Lee, Jaewon Lee, Boseok Kang   +13 more
wiley   +1 more source

Application of Harmonic Analysis to Residual Brightness Flicker

, 1973
Harmonic analysis has in recent years contributed significantly to the understanding of flicker fusion phenomena, including the areas of heterochromatic flicker where critical flicker frequency is viewed as a function of pulse-to-cycle fraction. In this
Charles W. Swisher, Evans J. Mandes
core   +1 more source