Results 111 to 120 of about 7,018,705 (370)

An improved opportunistic group replacement maintenance strategy for wind turbines

Energy Science & Engineering, 2020
In traditional opportunistic group replacement maintenance (OGRM) strategy for wind turbines, the reliability thresholds of different subassemblies are set the same and its two‐step optimization for maintenance cost is diseconomy.
Zhiyong Ma, Dameng Wang, Shiming Wu, Wei Teng, Yibing Liu   +4 more
doaj   +1 more source

Deterministic Writing of Field‐Free and Unipolar Spin‐Transfer Torque Magnetic Random‐Access Memory

Advanced Functional Materials, EarlyView.
Deterministic unipolar‐switching STT‐MRAM with field‐free operation is experimentally demonstrated. The device features a compact 4F2 cell architecture using a diode as the access device and a single magnetic tunneling junction. Unlike conventional bipolar switching STT‐MRAM requiring a three‐terminal access transistor in the array, this design offers ...
Ming‐Chun Hong, Ching Shih, Guan‐Long Chen, Yu‐Chen Hsin, Chen‐Yu Yang, Hsin‐Han Lee, Kuan‐Ming Chen, Yu‐Ho Kao, Tsai‐Yu Wu, Chiao‐Yun Lo, Sin‐You Huang, Cheng‐Yi Shih, Shan‐Yi Yang, I‐Jung Wang, Yao‐Jen Chang, Shih‐Ching Chiu, Yi‐Hui Su, Chih‐Yao Wang, Jeng‐Hua Wei, Shyh‐Shyuan Sheu, Wei‐Chung Lo, Shih‐Chieh Chang, Tuo‐Hung Hou   +22 more
wiley   +1 more source

Enhancing the Energy Efficiency of Radio Base Stations [PDF]

arXiv, 2013
This thesis is concerned with the energy efficiency of cellular networks. It studies the dominant power consumer in future cellular networks, the Long Term Evolution radio base stations (BS), and proposes mechanisms that enhance the BS energy efficiency by reducing its power consumption under target rate constraints.
arxiv  

Built‐In Electric Field in 2D/2D LDH/Antimonene Heterostructure to Induce Stable β‐NiOOH at Ultralow Potential for Cost‐Effective Water Electrolysis

Advanced Functional Materials, EarlyView.
In this paper, a built‐in electric field (BEF) strategy is proposed to fabricate NiFe‐LDH/antimonene heterostructure as bifunctional electrocatalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). The formed BEF generates a local potential that reduces the potential for the formation of β‐NiOOH, thereby enabling ultra‐low ...
Jingkun Wang, Xiaoning Li, Haojie Liang, Chenxi Zhang, Huayun Du, Ying Sun, Hui Li, Hongge Pan, Yuying Hao, Min Zhao, Tianbao Li, Tianyi Ma   +11 more
wiley   +1 more source

Direct Laser Ablation of 2D Material Films for Fabricating Multi‐Functional Flexible and Transparent Devices

Advanced Functional Materials, EarlyView.
A scalable method for direct laser patterning of 2D films on transparent substrates like polycarbonate and glass is presented. This technique eliminates the need for photolithography and solvents, enabling the fabrication of functional devices like strain gauges, supercapacitors, and photodetector arrays.
Yigit Sozen, Yu Kyoung Ryu, Javier Martinez, Andres Castellanos‐Gomez   +3 more
wiley   +1 more source

Integrated Modeling and Optimal Operation Strategy of Building Cooling System Combining the Standardized Thermal Resistance and Genetic Algorithm

Energy Science & Engineering
Integrated modeling and operation optimization of building energy systems is significant for improving the energy utilization efficiency and reducing carbon emission.
Liang Tian, Bohong Lai, Tianzhen Yang, Xingce Wang, Junhong Hao, Kaicheng Liu   +5 more
doaj   +1 more source

Motor‐Free Soft Robots for Cancer Detection, Surgery, and In Situ Bioprinting

Advanced Healthcare Materials, EarlyView.
Novel motor‐free soft robots for cancer detection, surgery, and in situ bioprinting–are presented. This master‐slave system is constructed from soft fibrous syringe architectures, removing the need for electrical motors and complex control mechanisms, while reducing the physical tremors.
Chi Cong Nguyen, James Davies, Aditya Ashok, Trung Thien Hoang, Anahid Ehteda, Tran Bach Dang, Emanuele Nicotra, Hien A. Tran, Bibhu Sharma, Kefan Zhu, Phuoc Thien Phan, Adrienne Ji, Jingjing Wan, Jelena Rnjak‐Kovacina, Orazio Vittorio, Hoang‐Phuong Phan, Nigel Hamilton Lovell, Thanh Nho Do   +17 more
wiley   +1 more source

Suitability of NVIDIA GPUs for SKA1-Low [PDF]

arXiv, 2014
In this memo we investigate the applicability of NVIDIA Graphics Processing Units (GPUs) for SKA1-Low station and Central Signal Processing (CSP)-level processing. Station-level processing primarily involves generating a single station beam which will then be correlated with other beams in CSP. Fine channelisation can be performed either at the station
arxiv  

Integrated Pristine van der Waals Homojunctions for Self‐Powered Image Sensors

Advanced Materials, EarlyView.
Pristine van der Waals homojunctions consisting of 2H‐MoTe2 layers with asymmetric thickness are constructed to eliminate heterogenous interfaces and obtain clean boundaries. The layer‐engineered energy bands of 2H‐MoTe2 layers induce a built‐in electric field at the interface, enabling self‐powered photodetection. Furthermore, a 10 × 10 array based on
Yunxia Hu, Jun Wang, Mohsen Tamtaji, Yuan Feng, Tsz Wing Tang, Mohammadreza Amjadian, Ting Kang, Mengyang Xu, Xingyi Shi, Dongxu Zhao, Yongli Mi, Zhengtang Luo, Liang An   +12 more
wiley   +1 more source

Green Base Station Placement for Microwave Backhaul Links [PDF]

arXiv, 2017
Wireless mobile backhaul networks have been proposed as a substitute in cases in which wired alternatives are not available due to economical or geographical reasons. In this work, we study the location problem of base stations in a given region where mobile terminals are distributed according to a certain probability density function and the base ...
arxiv