Results 41 to 50 of about 14,989 (194)

Seismic Performance and Vibration‐Based Damage Identification of Two‐Storey Balloon‐Framed CLT Shear Walls

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT While cross‐laminated timber (CLT) is increasingly utilized in lateral force‐resisting systems in mass timber construction, research has predominantly focused on platform‐type construction. Balloon‐type CLT shear wall systems offer distinct structural advantages, notably the elimination of cumulative perpendicular‐to‐grain compression and a ...
Samira Mohammadyzadeh   +3 more
wiley   +1 more source

Constrained ga pi sliding mode control of indoor climate coupled mimo greenhouse model

open access: yesJournal of Thermal Engineering, 2020
High accuracy trajectory tracking with constrained inputs is challenging topic in greenhouse indoor environment control. This is due to nonlinearities and inputs/outputs coupling present in physical model of greenhouse.
Khelifa LAMMARİ   +3 more
doaj   +1 more source

MIMO Antenna System Using Orthogonally Polarized Ultra Wide Band Antennas With Metamaterial [PDF]

open access: yesEngineering and Technology Journal, 2010
Modern wireless communications require wide band width resulting in anincreased demand for Ultra-Wide Bandwidth antennas. This paper proposes a design for a compact, ultra wide bandwidth antenna with metamaterial. It will be small in size and utilize the
Jamal M.Rasool
doaj   +1 more source

Subarray 4×4 untuk Antena MIMO 5G dengan Elemen yang Menerapkan Teknik Parasitic

open access: yesJurnal Nasional Teknik Elektro dan Teknologi Informasi, 2023
Multiple-input multiple-output (MIMO) merupakan sistem komunikasi nirkabel yang menggunakan banyak antena di sisi pemancar maupun penerima. Sistem ini dapat meningkatkan kualitas komunikasi nirkabel pada jaringan teknologi 5G.
Fitri Amillia   +2 more
doaj   +1 more source

Comparative Study of Electric Vehicle Propulsion Systems Using Field‐Oriented Controlled Dual PMSMs With Novel Control Strategies Based on an EPS Filter and a Fuzzy Logic Regulator for Enhanced Stability and Safety

open access: yesEnergy Science &Engineering, EarlyView.
The growing demand for electric vehicles (EVs) has driven research into improving propulsion control systems, focusing on performance, efficiency, and safety. This study addresses a gap in advanced control systems for EV differentials and presents two solutions.
Rachad Moumni   +7 more
wiley   +1 more source

Anten đa cổng trên hộp cộng hưởng ống dẫn sóng tích hợp với khả năng tái cấu hình phân cực (tuyến tính – tròn) cho những ứng dụng 5G tần sóng millimet

open access: yesTạp chí Khoa học và Công nghệ
Bài báo này đề xuất một mô hình anten 2 cổng hoạt động ở dải tần số 24-28 GHz cho các ứng dụng 5G tần sóng millimet. Anten được thiết kế dựa trên kỹ thuật ống dẫn sóng tích hợp kết hợp một khe hình chữ L có gắn phần tử chủ động (PIN đi-ốt) cho khả năng ...
Nguyễn Trương Khang   +2 more
doaj   +1 more source

Comb‐Driven Coherent Optical Transmitter for Scalable DWDM Interconnects

open access: yesLaser &Photonics Reviews, EarlyView.
A comb‐driven coherent optical transmitter on a Si/SiN platform enables scalable DWDM interconnects by integrating ultra‐compact microring‐assisted modulators and interleavers. High‐baud coherent signaling achieves 400 Gb/s per wavelength and >$>$1 Tb/s multi‐channel transmission, with projected >$>$10 Tb/s per fiber, offering a path toward energy ...
Alireza Geravand   +11 more
wiley   +1 more source

The MIMO-OTFS Technique in the Next 6G Communications

open access: yesEngineering Access
The orthogonal time-frequency space (OTFS) technique is a promising method of waveform modulation that encodes data in the delay-doppler (DD) domain. OTFS distinguishes itself from conventional multiplexing methods by employing two-dimensional modulation
Ali J. Ramadhan, Ali Taei Zadeh
doaj   +1 more source

Parallel Vector Processing in Optical Computing With Jacobi Time‐Wave Packets

open access: yesLaser &Photonics Reviews, EarlyView.
Functionality of a single neuron and state of the art photonic acceleration with a Mach‐Zehnder‐interferometer (MZI) mesh (i), a crossbar array (ii) and a micro ring resonator (MRR) array (iii). In the proposed Jacobi time‐wave packet approach (iv) a single modulator (here a ring modulator) is performing the whole scalar vector product in a single ...
Janosch Meier   +5 more
wiley   +1 more source

INVESTIGATION OF FADING IN THE COMMUNICATION SYSTEM USING OFDM TECHNOLOGY

open access: yesРадіоелектронні і комп'ютерні системи, 2018
A new technique exploited for estimating of fading influence in multipath signal propagation environment for communication system using OFDM (Orthogonal frequency-division multiplexing) technology is proposed.
Алексей Андреевич Бреславец   +1 more
doaj   +1 more source

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