Results 121 to 130 of about 177,239 (307)

Analisa Desain Tabung Bahan Bakar Gas Jenis Compressed Natural Gas (Cng) pada Mobil Bus Tekanan 200 Bar [PDF]

open access: yes, 2014
Tabung Bahan Bakar Gas (BBG) jenis Compressed Natural Gas (CNG) yang digunakan padamobil bus, merupakan jenis bejana tekan. Tekanan pada tabung ini berasal dari isi atau fungsitabung sebagai tempat penyimpanan fluida gas yang
Diniardi, E. (Ery)   +2 more
core   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Commercializing Alternative Fuels and Advanced Vehicle Technologies: The Government's Role [PDF]

open access: yes, 2002
Alternative fuels and advanced vehicle technologies can reduce air pollution and protect public health, while also improving national security by reducing U.S. dependency on petroleum.
Aaron Windecker
core  

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

open access: yesAdvanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim   +17 more
wiley   +1 more source

Adaptive Twisting Metamaterials

open access: yesAdvanced Materials, EarlyView.
This work introduces torque‐controlled twisting metamaterials as a transformative platform for adaptive crashworthiness. By combining multiscale predictive modeling with experimental validation on additively manufactured gyroids, it demonstrates tunable stiffness, collapse stress, and energy absorption.
Mattia Utzeri   +6 more
wiley   +1 more source

WAYS OF INCREASING AIR-FUEL MIXTURE IGNITION RELIABILITY OF GAS ENGINES FROM ELECTRIC DISCHARGE [PDF]

open access: yesAvtomobilʹnyj Transport (Harʹkov), 2010
The results of the rated estimation of the air-fuel mixture ignition energy of gas engines has been shown. The research of influence of hydrogen additions in different proportion on fuel-air mixture ig-nition process in the gas engine has been carried ...
F. Abramchuk   +3 more
doaj  

Soft Ionic and Electronic Triboelectric Nanogenerators: Toward Attachable and Implantable Biomedical Applications

open access: yesAdvanced Materials, EarlyView.
This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi   +12 more
wiley   +1 more source

Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation

open access: yesAdvanced Materials, EarlyView.
Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju   +7 more
wiley   +1 more source

Positively Charged Polymer‐Brush MOFs for Large‐Area, Pressure‐Resistant Gas Separation Membranes

open access: yesAdvanced Materials, EarlyView.
A universal POPA strategy enables positively charged polymer‐brush MOFs with self‐adaptive interfacial interlocking to resist aggregation under fast processing. This design ensures seamless dispersion within large‐area selective layers, achieving 1 m‐wide roll‐to‐roll fabrication of pressure‐resistant MMCMs with tunable CO2 separation performance ...
Yi Yang   +11 more
wiley   +1 more source

Next Steps for Hydrogen - physics, technology and the future [PDF]

open access: yes, 2016
Hydrogen has been proposed as a future energy carrier for more than 40 years. In recent decades, impetus has been given by the need to reduce global greenhouse gas emissions from vehicles.
Glowacki, Bartek   +2 more
core  

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