Results 331 to 340 of about 683,980 (395)

High‐Gain PMMA‐Modified Graphene Photodetectors for Dual‐Wavelength Secure Communication Utilizing Distinct Temporal Photoresponses

Advanced Science, EarlyView.
The bipolar photoresponses with temporally distinguishable characteristics in a PMMA‐modified graphene photodetector are successfully achieved. Through systematic harnessing of these wavelength‐dependent temporal dynamics as encrypted and key signals, an effective encryption system for optical communication systems is developed.
Jinhua Wu, Hao Sun, Ruiling Zhang, Shipeng Yao, Zhangyu Hou, Cun‐Zheng Ning   +5 more
wiley   +1 more source

Experimental Study on Key Parameters of Pulsating Water Injection for Coal Seam Damage. [PDF]

ACS Omega
Chen J, Wang E, Chang B, Wang G, Liu X, Xie S.   +5 more
europepmc   +1 more source

Observation of Optical Precursor in Time‐Energy‐Entangled W Triphotons

Advanced Science, EarlyView.
This study reports the observation of optical precursors at the triphoton level through the SSWM process. By appropriately adjusting the optical depth (OD), optical precursors are effectively separated from the main wave through utilizing the slow‐light effect to manipulate the triphoton temporal correlations in the group delay regime.
Zhou Feng, Rui Zhuang, Sinong Liu, Guobin Liu, Kangkang Li, Yanpeng Zhang   +5 more
wiley   +1 more source

MPPT of solar PV systems using PSO memetic algorithm considering the effect of change in tilt angle. [PDF]

Sci Rep
V L, N M JS.
europepmc   +1 more source

A Dual‐Modal Wearable Pulse Detection System Integrated with Deep Learning for High‐Accuracy and Low‐Power Sleep Apnea Monitoring

Advanced Science, EarlyView.
A dual‐modal wearable pulse detection system is developed for sleep apnea monitoring by integrating a self‐powered PENG and PPG sensor with a biomimetic fingertip structure. Through a two‐stage detection strategy, continuous PPW monitoring and on‐demand PPG detection achieve high‐accuracy sleep apnea recognition while maintaining low power consumption.
Jia Wang, Jiangtao Xue, Yang Zou, Yuxin Ma, Junhan Xu, Yanming Li, Fei Deng, Yiqian Wang, Kai Xing, Zhou Li, Tong Zou   +10 more
wiley   +1 more source

Analysis of Electroacupuncture Parameters for Irritable Bowel Syndrome: A Data Mining Approach. [PDF]

J Pain Res
Tang Y, Tang X, Wen Q.
europepmc   +1 more source

Laser‐Induced Co‐Doped FePS3 with Massively Phosphorus Sulfur Vacancies Nanosheet for Efficient and Highly Stable Electrocatalytic Oxygen Reaction

Advanced Science, EarlyView.
DFT‐guided defect engineering in 2D FePS3 reveals S/P vacancies Co‐doped and exposed Fe sites synergistically enhance OER performance. Laser‐ablation‐induced (Fe0.53Co0.46)PS3 exhibits excellent OER performance (288 mV overpotential, 58.3 mV dec−1 Tafel slope) and outstanding stability (138 h at 10 mA cm−2, 27h at 100 mA cm−2).
Ruiqi Xu, Guoshuai Fu, Weimi Ding, Yifan Li, Guowei Yang, Peng Yu, Shuang Li, Pu Liu   +7 more
wiley   +1 more source

Another example of Aslanger' s sign. [PDF]

J Geriatr Cardiol
Takahashi K, Yamamura N, Yoshino M, Enomoto D, Morioka H, Uemura S, Okura T, Sakaue T, Inoue K.   +8 more
europepmc   +1 more source

VOx‐Based Non‐Volatile Radio‐Frequency Switches for Reconfigurable Filter

Advanced Science, EarlyView.
Vanadium oxide‐based memristor devices achieve high performance for next‐generation non‐volatile memory and RF switches. These devices demonstrate a cutoff frequency of ≈4.5 THz, low insertion loss (<0.46 dB), and high isolation (>20 dB) from 0.1 to 20 GHz with stable operation extended to 67 GHz.
Dabin Seo, Dahyeon Kim, Jiyeon Ryu, Changwoo Pyo, Seungchan Lee, Tae‐Sik Yoon, Myungsoo Kim   +6 more
wiley   +1 more source

A hybrid theoretical-numerical-experimental framework for robust health monitoring of thin-walled hollow composite members using guided waves. [PDF]

Sci Rep
Kalgutkar AP, Sikdar S, Banerjee S, Walton K, Mishra R.   +4 more
europepmc   +1 more source