Results 51 to 60 of about 996,599 (191)

Tuning Stability and Optoelectronic Properties of CsSnI3 Via Rare‐Earth Doping

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Sn‐based halide perovskites are promising optoelectronic materials but are limited by poor stability. Thus, rare‐earth elements (RE) doping in CsSnI3 addresses this limitation, significantly enhancing thermodynamic, mechanical, and chemical stability, while simultaneously tuning electronic characteristics and modulating optical responses in the ...
Haowei Wang   +6 more
wiley   +1 more source

Accurate Approximation of ZF Massive MIMO Channel Rate With a Finite Antenna Over Ricean Fading Channel

open access: yesIEEE Access, 2018
In a typical downlink massive multiple-input and multiple-output (massive MIMO) system, the available degree of freedom (DoF) and multiplexing gain improve the channel rate.
James Kweku Nkrumah Nyarko   +4 more
doaj   +1 more source

Risk factors for not proceeding to reconstructive surgery after female genital mutilation: A cohort study of 220 women in a specialized referral center

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective This study identifies factors associated with not proceeding to clitoral reconstructive surgery among women with female genital mutilation (FGM) enrolled in a specialized surgical pathway. Methods A retrospective cohort study was conducted at a multidisciplinary referral center in Montreuil, France, between January 2021 and December ...
Félicia Joinau‐Zoulovits   +3 more
wiley   +1 more source

ANALISIS PERBANDINGAN PERFORMANSI PENANGGULANGAN INTER CARRIER INTERFERENCE DI OFDM MENGGUNAKAN KONVENSIONAL ZERO FORCING EQUALIZER DAN ENHANCED ZERO FORCING EQUALIZER [PDF]

open access: yes, 2016
OFDM (Ortogonal frecuency division multiplexing) memiliki efisiensi spektral yang sangat tinggi dan tahan terhadap frequency selective fading. Teknologi ini memang mempunyai banyak kelebihan tetapi disisi lain juga memiliki kekurangan.
RIZKY WAHYUDI
core  

Joint optimal detection of ordering SIC ZF and SIC ZF MAP for V-BLAST/STBC wireless communication systems

open access: yes, 2008
In this paper, we consider a V-BLAST/STBC wireless communication architecture, which integrates Alamouti space-time block codes (STBC) layer with vertical Belllabs layered space-time (V-BLAST) layer, in MIMO wireless communication system with four ...
Noordin, Nor Kamariah   +4 more
core   +1 more source

Optimized Hybrid Beamforming for RIS-Assisted Multi-User MIMO in 6G mmWave Networks: A Low-Complexity Approach to Spectral Efficiency and Interference Mitigation

open access: yesIEEE Open Journal of the Communications Society
The joint optimization of hybrid beamforming and reconfigurable intelligent surface (RIS) phase shifts in multi-user millimeter-wave (mmWave) MIMO systems is a challenging problem, mainly due to high computational complexity and the lack of adaptive ...
Safiya Nasser Al-Jaradi   +7 more
doaj   +1 more source

Seasonal Dynamics of Soil Multitrophic Biodiversity, Co‐Occurrence Network and Assembly Mechanisms Under Typical Vegetation Restoration Patterns in Karst Region

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Previous studies often overlooked the dynamic effects of karst vegetation restoration on soil multi‐trophic biodiversity and the underlying community‐assembly mechanisms. To fill this gap, we performed a seasonal comparative analysis of soil biodiversity, co‐occurrence network architecture, and assembly processes across three representative ...
Xiang Zhang   +8 more
wiley   +1 more source

Comparison of ZF and MF filters through PSLR and ISLR assessment in automotive OFDM radar

open access: yes, 2022
International audienceMany filtering strategies can be applied to estimate target position along the range profile in orthogonal frequency-division multiplexing radar. Chief among these filters are the matched filter (MF) and the zero forcing (ZF) method.
Baudais, Jean-Yves   +3 more
core   +1 more source

On the optimality of beamformer design for zero-forcing DPC with QR decomposition [PDF]

open access: yes, 2012
peer reviewedWe consider the beamformer design for zero-forcing dirty paper coding (ZF-DPC), a suboptimal transmission technique for MISO broadcast channels (MISO BCs).
OTTERSTEN, Björn   +7 more
core   +1 more source

Driven to Win, Destined to Lose? A Process Model of How Sports Betting Escalates Into Gambling Harm and Shapes Help‐Seeking

open access: yesPsychology &Marketing, EarlyView.
ABSTRACT Sports betting has become a routine part of watching sport. Online and mobile platforms let consumers bet continuously, receive instant feedback, and respond to new odds throughout a match. Frequent betting is known to raise the risk of gambling‐related harm, but far less is known about the psychological mechanisms through which that harm ...
Wagner Junior Ladeira   +5 more
wiley   +1 more source

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