Results 41 to 50 of about 2,085,793 (277)

Impact of external interfering factors on the accuracy of static and impulse resistance measurement of grounding [PDF]

, 2007
Podstawowym parametrem charakteryzującym skuteczność działania uziemienia jest jego rezystancja. Dla uziemień odgromowych powinna ona być wyznaczana przy wymuszeniu udarowym zaś dla uziemień ochronnych i roboczych przy częstotliwościach bliskich ...
Wołoszyk, M.
core  

A Novel Drug‐Loaded Porous Parylene Electrode for Targeted Anti‐Inflammatory Therapy and Hearing Preservation in Cochlear Implantation

Advanced Healthcare Materials, EarlyView.
A porous parylene‐coated electrode loaded with dexamethasone was developed to reduce inflammation after cochlear implantation. In guinea pigs, the device provided sustained drug release, maintained biocompatibility, improved auditory brainstem response thresholds, and reduced inflammatory cell infiltration and TNF‐α expression.
Chi‐Chieh Chang, Ying‐Chang Lu, Yu‐Ming Chang, Yen‐Hui Chan, Hong‐Yu Yan, Yi‐Shan Lee, Pei‐Hsuan Lin, Cheng‐Yu Hsieh, Chuan‐Jen Hsu, Tien‐Chen Liu, Hsien‐Yeh Chen, Chen‐Chi Wu   +11 more
wiley   +1 more source

A grounding method of OCS pillar foundation based on conductive concrete

机车电传动, 2023
A grounding method of OCS pillar foundation based on conductive concrete was proposed to solve the grounding problem of traction power supply system in areas with high soil resistivity. The proportioning of materials for conductive concrete was optimized
CHANG Zhanning, ZHANG Yiping, YU Shudan, XIE Zining, LU Weinan, CHENG Hongbo   +5 more
doaj  

Making the Case for Organ‐on‐Chip Platforms in Long‐Acting Therapeutics Development

Advanced Healthcare Materials, EarlyView.
LATs release drug from a tissue‐resident depot over weeks to months, improving adherence, but their development is hampered by preclinical models that cannot reproduce the coupled tissue processes, sustained release, local microenvironment change, interstitial transport, immune and foreign‐body responses, and clearance that govern depot performance in ...
Charlie Gowans, Abdulwahhab Khedr, Panagiotis G. Georgiou, Nehir Arik, Ozlem Sen, Steve P. Rannard, Tom O. McDonald, Christos Tapeinos   +7 more
wiley   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Study on lightning protection scheme of multi-terminal MMC-MVDC distribution system

High Voltage, 2020
Based on a ±10 kV three-terminal MMC-MVDC (medium voltage DC distribution system based on modular multilevel converter) system, in this study, the authors mainly study on the influencing factors and protection schemes of the lightning intruding ...
Yuqun Gao, Yongxia Han, Fanglei Xiao, Changfu Chen, Jinghan Zhang, Jie Zhang, Yaqi Zhang, Licheng Li   +7 more
doaj   +1 more source

A novel approach for grounding resistance estimation [PDF]

, 2022
Grounding is crucial to achieving equipment and personnel protection. This paper presents input-output pair-based modeling using the response surface method and artificial neural network to predict earth resistance for novel factors associated with ...
Karandikar, Parashuram B., Neelima R. Kulkarni, Parashuram B. Karandikar, Karkaria, Vispi, Vispi Karkaria, Bhosale, Meghna, Meghna Bhosale, Kulkarni, Neelima R.   +7 more
core   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

Advanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia, Rogelio Ortigosa, Jesús Martínez‐Frutos, Daniel Garcia‐Gonzalez   +3 more
wiley   +1 more source

A Geometrically Transient Platform for Bioelectronic Implants

Advanced Materials, EarlyView.
Minimally invasive bioelectronic implants often compromise performance for smaller sizes. To resolve this optimization dilemma, a wireless bioelectronic implant with a transient geometry is introduced (MiFi). The origami‐inspired device miniaturizes up to sixfold for syringe insertion and autonomously unfolds post‐implantation.
Selin Olenik, John D. Goodwin, Atharv Naik, Philip Coatsworth, Ioi Chit Cheung, Farbod Amirghasemi, Anies Sohi, Ehsan Abedi, Tayeb Tadlaoui, Maral P. S. Mousavi, Andriy S. Kozlov, Victoria Salem, Andrew S. Cowburn, Firat Guder   +13 more
wiley   +1 more source

BEHAVIOUR OF BACKFILL MATERIALS FOR ELECTRICAL GROUNDING SYSTEMS UNDER HIGH VOLTAGE CONDITIONS [PDF]

Journal of Engineering Science and Technology, 2015
Backfill materials like Bentonite and cement are effective in lowering grounding resistance of electrodes for a considerable period. During lightning, switching impulses and earth fault occurrences in medium and high voltage networks, the grounding ...
S. C. LIM, C. GOMES, M. Z. A. A. KADIR, G. NOURIRAD, Z. A. MALEK   +4 more
doaj