Results 31 to 40 of about 15,797 (201)

High Thermoelectric Performance Achieved by Manipulating the Band Structure and Lattice Dislocations in n‐Type Ge/Pb/Br Codoped Polycrystalline SnSe

Carbon Energy, EarlyView.
Pb/Ge/Br codoping in n‐type polycrystalline SnSe induces band convergence and high‐density dislocations, yielding a high power factor of 7.47 μW cm−1 K−2 and ultralow lattice thermal conductivity. Consequently, a peak ZT of 1.6 is achieved, overcoming the traditional performance limitations of n‐type SnSe.
Pubao Peng, Yang Geng, Jiajun Nan, Song Li, Dewei Zhang, Qing Lin, Yaru Gong, Guodong Tang   +7 more
wiley   +1 more source

From Ship to Shore: A Review of Vessel‐To‐Grid Bidirectional Charging for Sustainable Maritime Transport

EcoEnergy, EarlyView.
As maritime transport electrifies, bidirectional charging (V2G) offers a dual‐purpose solution for energy resilience and economic viability. This work identifies key technological advancements and lifecycle challenges utilizing practical case studies to demonstrate how V2G systems can drive decarbonization and grid stability in the marine sector ...
Jonathan Bloor, Tamer Kamel, Sarah Fear, Lee J. Durndell   +3 more
wiley   +1 more source

A Simplified Two‐Vector Approach for Common‐Mode Voltage Reduction in Model Predictive Control Drives of Permanent Magnet Synchronous Motor

Energy Science &Engineering, EarlyView.
In this study, a modified model predictive control scheme is proposed, in which a dedicated weighting factor is incorporated into the cost function to explicitly account for common‐mode voltage (CMV) effects during the control process. This modification leads to a significant reduction—up to 40%—in the magnitude of the generated CMV.
Javad Amini, Reza Roshanafekr
wiley   +1 more source

Subclinical cardiac alterations and cardiometabolic profile in adolescents with newly diagnosed polycystic ovary syndrome: A cross‐sectional comparative echocardiographic study

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective While cardiometabolic comorbidities have been well established in adults with polycystic ovary syndrome (PCOS), it remains unclear whether the early signs of cardiovascular morbidity emerge during adolescence. This study aimed to investigate whether metabolic and cardiovascular alterations begin in adolescents with PCOS.
Demet Aygün Ari, Melis Pehlivantürk Kizilkan, Musa Öztürk, İlker Ertuğrul, Hayrettin Hakan Aykan, Tevfik Karagöz, Nuray Kanbur, Orhan Derman, Sinem Akgül   +8 more
wiley   +1 more source

Pengaruh DM thd ABI

Jurnal Inspirasi Kesehatan
Pengaruh DM thd ...
Puji Setya Rini, null Miskiyah Tamar, null Sri Tirtayanti   +2 more
openaire   +1 more source

Similar dynamic tibiofemoral movements during jump‐landing and walking but distinct hamstrings strength across ACL reconstruction autograft types at mid‐term follow‐up

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Dynamic tibiofemoral movements following anterior cruciate ligament reconstruction (ACLR) with quadriceps tendon (QT) autografts have not yet been compared to other autografts. We aimed to compare dynamic anterior tibial translation (ATTd) and internal tibial rotation (ITRd) during jump‐landing and walking among patients with QT, bone ...
Tom Vendrig, Michèle N. J. Keizer, Reinoud W. Brouwer, Han Houdijk, Roy A. G. Hoogeslag   +4 more
wiley   +1 more source

Enhanced DTC induction motor drives for THD minimization performance improvement with multilevel inverter

, 2022
Direct torque control (DTC) is a method applied in induction motor (IM) drives to control the speed and torque of IM accurately and independently without feedback signal.
Siang, Alvin John Lim Meng, Utomo, Wahyu Mulyo, Gia Yi Sim, Sim, Sy Yi, Siong Kai Chien, Wahyu Mulyo Utomo, Mustafa, Farahiyah, Alvin John Lim Meng Siang, Sie Long Kek, Farahiyah Mustafa, Nor Aira Zambri, Sim, Gia Yi, Sy Yi Sim, Chien, Siong Kai, Kek, Sie Long, Zambri, Nor Aira   +15 more
core   +1 more source

Static and Dynamic Analysis of Porous Gas Bearings Lubricated With Air, Refrigerant R‐134a, Helium and Hydrogen

Lubrication Science, EarlyView.
ABSTRACT Porous gas bearings (PGBs) enable high‐speed, oil‐free operation in modern rotating machinery. This study develops a coupled thermo‐hydrodynamic (THD) model for a cylindrical porous gas bearing lubricated with four working fluids—air, R‐134a, helium and hydrogen.
S. Bechiri, B. Bouchehit, B. Bou‐Saïd
wiley   +1 more source

PENGARUH TOTAL HARMONIC DISTORTION (THD) TERHADAP PEMBACAAN KWH METER SEMI DIGITAL

, 2022
Pengukuran energi yang terpakai dalam suatu jaringan listrik oleh kWh meter sebaiknya mempunyai tingkat akurasi yang baik agar pengguna listrik tidak merasa dirugikan.
PANGGABEAN, MARTIN, Alex, Surapati, Rosa, Khairul Amri   +2 more
core   +1 more source

Unraveling the effect of topological structures of B/N‐doped conjugated macrocycles on spectral properties: A computational study

Smart Molecules, EarlyView.
Herein, we constructed a series of fully B‐doped, fully N‐doped and hybrid B/N‐doped conjugated macrocycles considering three key topological factors. At a fixed ring size, the spectra initially redshift then blueshift with varying B/N ratio, while ring size exhibits negligible impact on spectra.
Wen‐Yu Guo, Yi Zeng, Yu‐Meng Xu, Pang‐Kuan Chen, Xiao‐Yan Zheng   +4 more
wiley   +1 more source