Results 131 to 140 of about 220,265 (355)

High performance auxiliary-propulsion ion thruster with ion-machined accelerator grid [PDF]

An improvement in thruster performance was achieved by reducing the diameter of the accelerator grid holes. The smaller accelerator grid holes resulted in a reduction in neutral mercury atoms escaping the discharge chamber, which in turn enhanced the ...
Banks, B. A., Hudson, W. R.
core   +1 more source

Epidermal Patch Technologies for Integrated Healthcare and Infection Management

Advanced Healthcare Materials, EarlyView.
Epidermal patches have evolved from simple wound coverings into multifunctional, skin‐conformable platforms integrating drug delivery, biosensing, and therapeutic functionalities. This review highlights their material innovations, fabrication strategies, and intelligent designs, including hydrogels, microneedles, and flexible electronics, while ...
Yuqi Wang, Atakan Tevlek, Pawel L. Urban, Boaz Mizrahi, Onome Ejeromedoghene, Roshan Deen, Yuanjing Lin, Jagan Mohan Dodda   +7 more
wiley   +1 more source

Dry sliding friction and wear response of WC-Co hardmetal pairs in linearly reciprocating and rotating contact [PDF]

, 2011
This paper presents an experimental evaluation of friction and wear properties of WC-Co cemented carbides. A comparison is made between unlubricated rotating and linearly reciprocating pin-onplate sliding pairs. The plate specimens were WC-10wt%Co grades
Bonny, Koenraad, De Baets, Patrick, Lauwers, Bert, Malek, Olivier, Neis, Patric Daniel, Perez Delgado, Yeczain, Rodriguez Fereira, Vanessa, Vleugels, Jef   +7 more
core   +1 more source

Machining parameter optimization and experimental investigations of nano-graphene mixed electrical discharge machining of Nitinol Shape memory alloy

Journal of Materials Research and Technology, 2022
Jay Vora, Sakshum Khanna, R. Chaudhari, V. Patel, Sagar Paneliya, D. Pimenov, K. Giasin, C. Prakash   +7 more
semanticscholar   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

Advanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long, Huanyu Zhou, Jaewan Ko, Hongwei Tan, Jaemin Lim, Yanfei Zhao, Daehan Kang, Eojin Yoon, Gyeong‐Tak Go, Somin Kim, Seung‐Woo Lee, Chan‐Yul Park, Hyojun Choi, Hyeran Kim, Hyung Joong Yun, Sung Hyuk Park, Kwan Sik Park, Jeong Woo Park, Mungeun Kim, Yong Soo Cho, Ho Won Jang, Wenqiang Yang, Min Hyuk Park, Wan Ki Bae, Sebastiaan van Dijken, Joona Bang, Tae‐Woo Lee   +26 more
wiley   +1 more source

The fabrication of beryllium. Volume III - Metal removal techniques [PDF]

Metal removal techniques for beryllium in spacecraft structure ...
Ingels, S. E., Williams, R. F.
core   +1 more source

Index to NASA Tech Briefs, January - June 1966 [PDF]

, 1966
Index to NASA technological innovations for January-June ...

core   +1 more source

Porosity Engineering of MXene Architectures: Toward High‐Performance Aqueous Electrochemical Energy Storage

Advanced Materials, EarlyView.
This review systematically summarizes recent advances in porosity engineering of MXenes, with a focused discussion on their structure‐governed energy storage properties. A critical analysis of structure–property relationships is presented across alkali‐ion batteries, multivalent‐ion batteries, and supercapacitors.
Shude Liu, Jieming Chen, Xue Peng, Huilin Zhang, Ling Kang, Ming Ma, Zhaoling Li, Yusuke Yamauchi, Bin Ding   +8 more
wiley   +1 more source

Investigation on different composition of powder metallurgy electrode (Cu-W) in high performance edm (HPEDM) on AISI D2 hardened steel [PDF]

, 2013
The ideal selection of manufacturing conditions is one of the most important aspects to take into consideration in the majority of manufacturing processes and particularly in processes related to Electrical Discharge Machining (EDM).
Abdul Hamid, Faizul Ezmat
core  

Study on Electric-Discharge Machining

Journal of The Japan Society of Electrical Machining Engineers, 1972
The selection of machining electrode suitable for the discharge machining circuits becomes more important as development of the circuits advances.The carbon based materials are regared as favorably suitable electrode in terms of workability, formability and economy.The paper deals with machining characteristics of the carbon based electrode.RC circuit ...
Yoshitasugu MUKOYAMA, Minoru ARAI, Takahiro KATO   +2 more
openaire   +2 more sources