Results 111 to 120 of about 32,031 (301)

Application of different signal analysis methods to the ULF data for the 1993 Guam earthquake [PDF]

Natural Hazards and Earth System Sciences, 2007
Two different analysis methods; (1) mono-fractal analysis (based on Higuchi method) and (2) flicker noise spectroscopy, have been applied to the same ULF (frequency less than 10 Hz) electromagnetic data observed at Guam during 3 years including the 1993 ...
Y. Ida, M. Hayakawa, S. Timashev
doaj  

A 4.5-5.8 GHz Differential LC VCO using 0.35 m SiGe BiCMOS Technology [PDF]

, 2006
In this paper, design and realization of a 4.5-5.8 GHz, Gm LC voltage controlled oscillator (VCO) for IEEE 802.11a standard is presented. The circuit is implemented with 0.35´m SiGe BiCMOS process that includes high-speed SiGe Heterojunction Bipolar ...
Esame, İbrahim Onur, Esame, Ibrahim Onur, Gurbuz, Yasar, Gürbüz, Yaşar, Tekin, İbrahim, Tekin, Ibrahim   +5 more
core  

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
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  

Minimal Hepatic Encephalopathy in Patients with Alcohol Related and Non-alcoholic Steatohepatitis Related Cirrhosis by Psychometric Hepatic Cephalopathy Score and Critical Flicker Frequency

Acta Medica Indonesiana, 2021
Background: alcohol may have additional neurotoxic ill-effects in patients with alcohol related cirrhosis apart from hepatic encephalopathy. We aimed to evaluate minimal hepatic encephalopathy (MHE) with Psychometric Hepatic Encephalopathy (PHES) score ...
Nitin Jagtap, Pintu Bhakhar, Muhammad Miftahussurur, Yashavanth H S, Pankaj Shrimal, Mithun Sharma, Rajesh Gupta, P N Rao, D Nageshwar Reddy   +8 more
doaj  

Active Learning‐Guided Accelerated Discovery of Ultra‐Efficient High‐Entropy Thermoelectrics

Advanced Materials, EarlyView.
An active learning framework is introduced for the accelerated discovery of high‐entropy chalcogenides with superior thermoelectric performance. Only 80 targeted syntheses, selected from 16206 possible combinations, led to three high‐performance compositions, demonstrating the remarkable efficiency of data‐driven guidance in experimental materials ...
Hanhwi Jang, Wooseok Lee, Hwa‐Jung Kim, Sohyang Cha, Hosun Shin, Won Bo Lee, Min‐Wook Oh, Yeon Sik Jung, YongJoo Kim   +8 more
wiley   +1 more source

Effect of Foot Reflexology on Cognitive Function in Healthy Individuals: A Randomized Controlled trial

Journal of Acupuncture Research
Background: Reflexology is a timeless healing art rooted in ancient Chinese, Egyptian, and Native American cultures. Cognition refers to the brain’s capacity to gather, interpret, retain, and recall information.
B. Snekha, Venkatalakshmi Saravanan, R. Thirumalaivasan, S. Thannmadhi, S. Sneha, N. D. Sournamaalya, N. Mangaiarkarasi, A. Mooventhan   +7 more
doaj   +1 more source

Porous Bi2S3 Bulk With Excellent Thermoelectric Performance by Solid States Replacement and Low Melting‐Point Metal Volatilization

Advanced Materials, EarlyView.
By introducing FeCoNi medium‐entropy alloy, the bismuth sulfide (Bi2S3) material achieves a record‐high ZT of 1.1 at 773 K, owing to the solid‐states replacement reaction and the volatilization of low melting‐point metal. This strategy is also applicable to other sulfur‐based thermoelectric materials.
Zi‐Yuan Wang, Jun Guo, Yi‐Xin Zhang, Hao Liang, Xing Yang, Rafal E. Dunin‐Borkowski, Fengshan Zheng, Lei Jin, Jing Feng, Zhen‐Hua Ge   +9 more
wiley   +1 more source

Auto-oscillation threshold, narrow spectral lines, and line jitter in spin-torque oscillators based on MgO magnetic tunnel junctions

, 2008
We demonstrate spin torque induced auto-oscillation in MgO-based magnetic tunnel junctions. At the generation threshold, we observe a strong line narrowing down to 6 MHz at 300K and a dramatic increase in oscillator power, yielding spectrally pure ...
Bianchini, L., Chappert, C., Cornelissen, S., Crozat, P., de Beeck, M. Op, Devolder, T., Kim, Joo-Von, Lagae, L.   +7 more
core   +1 more source

Recent Progress on Flexible Multimodal Sensors: Decoupling Strategies, Fabrication and Applications

Advanced Materials, EarlyView.
In this review, we establish a tripartite decoupling framework for flexible multimodal sensors, which elucidates the underlying principles of signal crosstalk and their solutions through material design, structural engineering, and AI algorithms. We also demonstrate its potential applications across environmental monitoring, health monitoring, human ...
Tao Wu, Yu‐Tao Li, Luyu Zhao, Yi Zhang, Zhaojie Zhang, Jian Yuan, Yiwen Wu, Anqi Che, Yuanxiao Ma, Yang Chai, Yeliang Wang   +10 more
wiley   +1 more source