Results 51 to 60 of about 1,639,929 (252)

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

open access: yesAdvanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang   +2 more
wiley   +1 more source

Adaptive Minimum Bit Error Rate Beamforming [PDF]

open access: yes, 2005
An adaptive beamforming technique is proposed based on directly minimizing the bit error rate. It is demonstrated that this minimum bit error rate (MBER) approach utilizes the antenna array elements more intelligently, than the standard minimum mean ...
N. N. Ahmad   +6 more
core   +2 more sources

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev   +2 more
wiley   +1 more source

The Design of a Low-Noise CMOS Image Sensor Using a Hybrid Single-Slope Analog-to-Digital Converter

open access: yesSensors
In this study, we describe a low-noise complementary metal-oxide semiconductor (CMOS) image sensor (CIS) with a 10/11-bit hybrid single-slope analog-to-digital converter (SS-ADC).
Hyun Seon Choo   +4 more
doaj   +1 more source

Performance analysis of a hybrid optical CDMA/DWDM system against inter-symbol interference and four wave mixing

open access: yesDigital Communications and Networks, 2021
This paper reports the implementation and theoretical model for analyzing an optical CDMA/DWDM hybrid system to reduce two major problems, the Inter-Symbol Interference (ISI) and the Four-Wave Mixing (FWM) effects and improve the performance of optical ...
Naif Alsowaidi   +2 more
doaj   +1 more source

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

open access: yesAdvanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang   +6 more
wiley   +1 more source

Customized Design and Application of High ROP Bit for Deep Shale Gas

open access: yesShiyou jixie
As the development scale of shale gas expands, improving the rate of penetration (ROP) of deep shale gas has become the key to improving development efficiency, and designing more targeted bit based on formation characteristics is an effective means to ...
Zhu Xiaohua   +6 more
doaj   +3 more sources

Wide word‐length carry‐select adder design using ripple carry and carry look‐ahead method based hybrid 4‐bit carry generator

open access: yesEngineering Reports
This research aims to fill up the research gap in energy‐efficient transistor‐level wide word‐length carry circuit generator by using ripple carry (RC) and carry look‐ahead (CLA) method‐based hybrid 4‐bit carry generation process for wide word‐length ...
Mehedi Hasan   +5 more
doaj   +1 more source

Design and application of novel hybrid drill bit for hard formation with strong abrasivity

open access: yesJin'gangshi yu moliao moju gongcheng, 2020
To improve the rock breaking efficiency and the service life of polycrystalline diamond compact (PDC) bit in the hard formation with strong abrasivity, two novel PDC-impregnated diamond insert hybrid bits, which are composed of PDC cutters and ...
YU Jinping, ZOU Deyong, LIU Xiaoao
doaj  

Investigating the Low‐Temperature Phase Stability of the Binary Ta–W System

open access: yesAdvanced Engineering Materials, EarlyView.
Atomistic simulations show that the binary Ta–W system forms ordered intermetallic phases, B2‐TaW and D03‐TaW3, as 0 K ground states. Configurational entropy, however, lowers the free energy of the disordered bcc solid solution, which becomes the stable phase above about 400 K.
Klemens Lechner   +7 more
wiley   +1 more source

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