Results 61 to 70 of about 5,789 (261)

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

Seal-surface Contact Stress Analysis of the Connection under Tension-compression Alternating Load

Shiyou jixie, 2018
To select proper gas-seal connection of injection-production casing string under tension-compression alternating loads, based on the nonlinear theory of elastoplastic contact, the finite element analysis method is used to investigate the distribution of ...
Wang Jianjun, Sun Jianhua, Gao Jinwei, Yang Shangyu   +3 more
doaj  

Meniscus‐Guided Interfacial Ring‐by‐Ring Assembly for In Situ Fabrication of Tubular Hydrogels

Advanced Materials, EarlyView.
A tubular hydrogel fabrication method leveraging the meniscus effect at the oil‐water interface is presented. UV irradiation across the concave surface of the photocurable hydrogel precursor induces the formation of ring‐like hydrogel structures. Sequential ring‐by‐ring assembly within microchannels enables the construction of arteriole‐scale hydrogel ...
Yuki Kamiya, Yingzhe Wang, Keisuke Morishima   +2 more
wiley   +1 more source

Simulation of the Static Sealing Performance of Rubber Packer Cylinders in a Supercritical–CO₂ Environment

Energies
The aim of this study was to solve the problems associated with the sealing and tearing failure of rubber packer cylinders during CO2 downhole injection.
Zhenkun Zhu, Meng Cai, Lining Cui, Xingliang Song, Xiaoyu Xu, Chuanbo Cong, Haicheng Li, Qiming Gao   +7 more
doaj   +1 more source

Navigating Lipid Nanostructure Design Space Through Continuous Microfluidic Automation

Advanced Materials, EarlyView.
LipidXplorer is a novel microfluidic platform which enables rapid navigation of lipid particle design space for high‐resolution phase mapping, lipid nanoparticle optimization, membrane biophysics, and functional nanomaterial discovery. It combines programmable composition control, continuous nanoparticle formation, and automated well‐plate collection ...
Bradley Diggines, Marcus Fletcher, Manuel Bibrowski, Karnyart Samnuan, Rongjun Chen, David J. Peeler, Amjad Abouselo, Morag R. Hunter, Molly M. Stevens, Nicholas J. Brooks, Yuval Elani   +10 more
wiley   +1 more source

Improvement and Application of Hydraulic Jet Impactor Adapted to PDC Bit

Shiyou jixie, 2018
The current hydraulic jet impactor has problems like easy damage of the jet element, failure of the cylinder seal structure and easy looseness of the gland structure during high temperature and high pressure solid phase drilling. To address the problems,
Wang Lei, Zhang Renlong, Suo Zhongwei, Zhang Jinshuang, Xia Yicheng, Geng Haoran, Zhao Hongyu   +6 more
doaj  

Hamzatepe Kazılarından Ele Geçen Ünik Bir Silindir Mühür

Höyük
Kahramanmaraş ili, Elbistan ilçesinin 10 km kuzeybatısında yer alan Hamzatepe, Karahüyük Mahallesi’nin hemen batısında, modern evlere bitişik bir konumdadır.
Bora Uysal, Ali Çifçi
doaj   +1 more source

A Wireless, Passive Multimodal Wearable Sensor With Decoupled Sensing Capabilities

Advanced Materials, EarlyView.
A wireless passive multimodal electronic skin is presented for the simultaneous perception of pressure, humidity, and odor through a frequency‐divided LC resonator array. The decoupled sensing architecture suppresses cross‐interference and enables independent signal readout under superimposed stimuli while maintaining high stability.
Wenjiang Han, Heng Xiao, Tianshuang Wang, Xiaoran Ding, Liupeng Zhao, Seokjoo Cho, Peng Sun, Inkyu Park, Geyu Lu   +8 more
wiley   +1 more source

Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications

Advanced Materials, EarlyView.
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko, Chiamaka Akah, Ravinder Dahiya   +2 more
wiley   +1 more source

Numerical Investigation of the Leakage and Rotordynamic Characteristic for a Short Staggered Labyrinth Seal

MATEC Web of Conferences, 2017
Short staggered labyrinth seals are widely used in high pressure cylinder shroud seals of steam turbines. They are good at restricting the leakage flow but do not respond well to rotordynamics and often lead to turbomachine instabilities.
Zhong Minglei
doaj   +1 more source