Results 141 to 150 of about 96,233 (313)

Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN

open access: yesAdvanced Functional Materials, EarlyView.
Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk   +6 more
wiley   +1 more source

Analisa Perbandingan Efisiensi Motor DC Kompon Pendek dengan Motor DC Kompon Panjang Akibat Penambahan Kutub

open access: yes, 2014
Motor listrik merupakan perangkat elekromagnetis yang mengubah energi listrik menjadi energi mekanik. Motor DC memerlukan tegangan searah pada kumparan medan untuk diubah menjadi energi mekanik.
Sitompul, Fuad Rahim
core  

Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene

open access: yesAdvanced Functional Materials, EarlyView.
Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus   +8 more
wiley   +1 more source

DC motor speed control by using DC/DC converter

open access: yes, 1990
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 1990Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 1990Bu çalışmada dc/dc çevirici kullanarak doğru akım motor hız kontrolü yapılmıştır ...
Taşan, Haluk
core  

PENGENDALIAN KECEPATAN PUTAR MOTOR DC DENGAN JARINGAN SARAF TIRUAN B-SPLINE SECARA ON LINE [PDF]

open access: yes, 2011
Dalam perancangan kendali kecepatan putar motor dc secara konvensional, misal dengan menggunakan PI, PID, konstanta proporsional, integral dihitung berdasarkan parameter motor yang dikendalikan.
Wardhana, Didik Widi   +2 more
core  

SPEED CONTROL OF (SEDM) ADOPTING CHOPPER CONVERTER AND PI CONTROLLER

open access: yesDiyala Journal of Engineering Sciences, 2015
This paper describes speed control of separately excited DC motor (SEDM) adopting Chopper converter and PI as speed and current controller. The chopper firing circuit receives signal from controller and then chopper gives variable voltage to the ...
Mohammed H. Ali
doaj  

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg   +6 more
wiley   +1 more source

Integrated Field‐Free SOT Domain‐Wall Synapses and MTJ Stochastic Neurons for Hardware Boltzmann Machines

open access: yesAdvanced Functional Materials, EarlyView.
Field‐free spin‐orbit torque domain‐wall synapses integrated with stochastic MTJ neurons enable compact hardware Boltzmann machines. Leveraging intrinsic stochasticity and multi‐level conductance, the system achieves efficient probabilistic learning with high accuracy, demonstrating a scalable spintronic platform for energy‐efficient edge AI.
Aijaz H. Lone   +8 more
wiley   +1 more source

Electrocapillary Modulated Interfacial Tension Amplifies Liquid Metal Transduction

open access: yesAdvanced Functional Materials, EarlyView.
This study presented an electrocapillary‐enhanced magnetohydrodynamic pumping strategy that harnesses the Lorentz force and interfacial tension modulation of liquid metal droplets to achieve amplified fluidic power. The system enabled low‐voltage, self‐oscillating fluidic transduction with enhanced pressure and flow generation, supporting compact ...
Saba Firouznia   +3 more
wiley   +1 more source

PERANCANGAN PENGENDALI POSISI LINIER UNTUK MOTOR DC DENGAN MENGGUNAKAN PID

open access: yes, 2009
Pada penelitian ini dibuat sistem pengaturan PID (Proportional, Integral, Derivative) posisi linier motor DC dengan mikrokontroller. Metode penelitian yang digunakan dari penelitian ini, ialah menggunakan eksprimen dengan melakukan perancangan hardware ...
Nazar, Nazwan   +2 more
core  

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