Results 81 to 90 of about 95,125 (344)

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Contamination [PDF]

, 2011
Soil contamination occurs when substances are added to soil, resulting in increases in concentrations above background or reference levels. Pollution may follow from contamination when contaminants are present in amounts that are detrimental to soil ...
Bacon, J., Cundill, A., Dale, P., Fordyce, F.M., Fowler, D., Hedmark, A., Hern, A., Skiba, U.   +7 more
core   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Integrated prevention and control technology of unloading pressure from boreholes and high-efficiency extraction for compound power disasters

Meitan kexue jishu
Addressing the technical challenges posed by the compound disaster of intense mining pressure and high gas concentration, this study developed a novel viscous sealing material based on cellulose ether. Experimental analyses were conducted to evaluate the
Xingrun ZHANG, Bojie PAN, Yongbin ZHANG, Fuchang HAO, Baobin GAO, Zhiqi XI   +5 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Transient Pressure Test Article Test Program [PDF]

The Transient Pressure Test Article (TPTA) test program is being conducted at a new test facility located in the East Test Area at the National Aeronautics and Space Administration's (NASA's) Marshall Space Flight Center (MSFC) in Huntsville, Alabama ...
Vibbart, Charles M.
core   +1 more source

Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC

Advanced Engineering Materials, EarlyView.
ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko, Evelyn Wang, Michael A. Hickner   +2 more
wiley   +1 more source

Optimization of K-Shaped Metal Sealing Ring for Subsea Tubing Hanger Based on Response Surface Method

Modelling and Simulation in Engineering
The K-shaped metal sealing ring of the subsea tubing hanger is a crucial sealing component ensuring wellhead sealing. Optimizing its structure can enhance the sealing performance of the tubing hanger and improve the reliability of subsea wellhead ...
Huan Xie, Hongxia Zhang, Yiwei Fan, Liyuan Liu, Wei Zeng   +4 more
doaj   +1 more source

Technology for Treatment and Reinforcement of Soft Rock Tunnel Floor Using Sealing Material

Buildings
To maintain the stability of soft rock tunnels, the research team proposed a support scheme involving “floor grouting + floor anchors + sealing material”. This scheme incorporates a new sealing material with excellent mechanical properties, airtightness,
Yongli Liu, Lei Tao, Shenglei Zhao, Weixin Chen, Yaozu Ni   +4 more
doaj   +1 more source

An Integrated Circuit Compatible Compact Package for Thermal Gas Flowmeters [PDF]

, 2007
An original packaging method suitable for integrated thermal mass flow sensors is presented. The method consists in the application of a plastic transparent adapter to the chip surface.
Bruschi, P., Nurra, V.
core   +2 more sources