Results 51 to 60 of about 162,419 (260)

Large‐Aperture Polarization‐Independent Broadband Achromatic All‐Dielectric Metalens for Terahertz Focusing

Advanced Science, EarlyView.
A large‐aperture, high focusing efficiency and polarization‐independent THz single‐layer achromatic metalens is reported via discrete multi‐wavelength achromatic design and global optimization algorithm. The fabricated metalens exhibits a largest diameter of 2.21 cm, excellent achromatic performance, extremely high average focusing efficiency (> 46 ...
Xiaoqiang Jiang, Xu Chen, Zechuan Bin, Fu Tang, Min Hu, Manman Li, Wenhui Fan, Baoli Yao   +7 more
wiley   +1 more source

Integrating hedge algebras and optimization techniques to reduce forecasting errors in fuzzy time series model

IJAIN (International Journal of Advances in Intelligent Informatics)
Accurate forecasting in fuzzy time series (FTS) models is essential for applica-tions such as financial markets, traffic fatalities, and academic enrollments.
Nghiêm Văn Tính
doaj   +1 more source

Multi-objective optimization of process parameters for ultrasonic rolling extrusion of 42CrMo material

Mechanics & Industry, 2023
To choose the most suitable method to solve the process parameter optimization of ultrasonic rolling extrusion, the 42CrMo material was taken as the research object. Based on a four-factor five-level orthogonal experiment, the response surface method was
Wang Xiaoqiang, Wang Haojie, Wang Paigang, Zhu Qiping   +3 more
doaj   +1 more source

Highly Efficient Extraction of 212 Pb/212Bi from the Decay Chain of 232Th‐Based on Anion Exchange in Bromide Medium

Advanced Science, EarlyView.
This work provides an effective strategy for selectively extracting 212Pb and 212Bi from the decay chain of 232Th as well as its mechanism illustration. Using the novel strategy, 2.07 MBq of 212Pb is successfully separated from 232Th and its daughters, which enables the supply of 212Pb/212Bi directly from the abundant natural thorium resource to be ...
Lifeng Chen, Wannian Feng, Yuezhou Wei, Xuexiang He, Shaoying Wang, Zhongyuan Zhou, Qiang Wu, Ningchao Zheng, Xiangbiao Yin, Wenlong Li, Lingling Su, Shunyan Ning   +11 more
wiley   +1 more source

Metabolomics in psoriatic disease: pilot study reveals metabolite differences in psoriasis and psoriatic arthritis. [PDF]

, 2014
ImportanceWhile "omics" studies have advanced our understanding of inflammatory skin diseases, metabolomics is mostly an unexplored field in dermatology.ObjectiveWe sought to elucidate the pathogenesis of psoriatic diseases by determining the differences
Armstrong, April W, Azizi, Baktazh, Dhillon, Jaskaran, Fiehn, Oliver, Grapov, Dmitry, Johnson, Mary Ann, Wu, Julie   +6 more
core   +2 more sources

Prediction Method for Carbon Storage in Substation Based on Uncertain Parameters

Zhongguo dianli
The SF6 gas volume data from the PMS system is incomplete and contains significant errors, rendering it inadequate for power grid enterprises to calculate carbon reserves and formulate carbon planning for future substations. To address this problem, this
Siyang CHEN, Li HAN, Jizhong FANG, Wuhang DING, Cheng CHENG, Wen LI, Yuan ZHANG, Yong QIAN   +7 more
doaj   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Next generation assisting clinical applications by using semantic-aware electronic health records [PDF]

, 2009
The health care sector is no longer imaginable without electronic health records. However; since the original idea of electronic health records was focused on data storage and not on data processing, a lot of current implementations do not take full ...
De Potter, Pieterjan, Debevere, Pedro, Mannens, Erik, Van de Walle, Rik   +3 more
core   +2 more sources

Optimization of Energy Management Strategy for the EPS with Hybrid Power Supply Based on PSO Algorithm

Energies, 2020
The traditional vehicle power supply is unable to meet the power requirement of electric power steering system (EPS) in heavy-duty vehicles at low speeds.
Bin Tang, Di Zhang, Haobin Jiang, Yinqiu Huang   +3 more
doaj   +1 more source

Adapting to Changing Rainfall and Developing Off‐Farm Employment: Implications for the Adoption of Direct Seeding in Rice Production

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT Rice is the main staple food for more than half of the world's population and the income from rice is an essential source for livelihoods of millions of households. We examine whether direct seed in rice production is an adaptation of rice farmers to rainfall changes and farm labor scarcity.
Manh Hung Do
wiley   +1 more source