Results 171 to 180 of about 156,957 (301)

Enhancement Method and Safety Analysis of Sealing Unit in Gas Packer

Shiyou jixie
The gas packer rubber is a key part for achieving separate layer and interval production of gas wells. The conventional three-unit rubber barrel structure is prone to initial failure during setting, which will lead to a decrease in the overall stress ...
Cheng Wenjia, Li Yue, Xu Fengxiang, Wei Ruitao, Ge Yuan, Wang Leipeng   +5 more
doaj  

Novel characterisation of microplastics and other contaminant particles using new scanning electron microscopy technologies. [PDF]

Sci Rep
Webb M, Buckman J, Ratouit B, Scott J, Bischoff J, Le TT, Gutierrez T, Wagner T, Ngo HTT, Kaiser M, Pereira R.   +10 more
europepmc   +1 more source

Worm‐Inspired Soft Robots With Modular Outfit‐Changing for Intelligent Multienvironment Adaptation

Advanced Intelligent Systems, EarlyView.
This study proposes a worm‐inspired soft robot capable of locomotion across multiple environments through a modular “outfit‐changing” strategy. The robot integrates pneumatically actuated peristaltic segments with interchangeable external modules, enabling efficient motion on ground surfaces, within pipelines, through granular media, and underwater ...
Xiaomin Liu, Heng Wei, Zhengxin Guo, Zheng Liu, Yi Jin, Yunwei Zhao, Changyong Chase Cao   +6 more
wiley   +1 more source

Recycled Polyurethane Glycolysate and Glycerolysate as Sustainable Plasticizers for Lignin-Filled NBR Composites. [PDF]

Materials (Basel)
Kruželák J, Džuganová M, Tomanová K, Plavec R, Parcheta-Szwindowska P, Włoch M, Bąk M, Datta J.   +7 more
europepmc   +1 more source

Tribological performance of cavitation and hydrodynamic lubrication in screw pump rotors with Nepenthes-inspired textures and pits. [PDF]

iScience
Liu X, Ma Z, Liu C, Bai L, Zhang S, Huang S.   +5 more
europepmc   +1 more source

Microstructural and Impact Resistance Optimization of Concrete Composites with Waste-Based Aggregate Substitutions. [PDF]

Polymers (Basel)
Stępczak M, Kazimierczak M, Roszak M, Kurzawa A, Jamroziak K.   +4 more
europepmc   +1 more source

Practical application of lead rubber bearings with fail-safe mechanism

Practical application of lead rubber bearings with fail-safe mechanism
The results of dynamic and quasi-static loading tests for scaled and full-scale Lead Rubber Bearing with Fail-Safe mechanism, an alternative isolation bearing that consists of a conventional lead rubber bearing and a slider bearing in series, are discussed.
openaire  

Mechanistic Insights Into Photocatalytic Materials for Toxic Pollutants: Environmental Remediation of Personal Care Products

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Photocatalytic materials have emerged as promising solutions for environmental applications due to their ability to degrade organic pollutants under sunlight or artificial light. In this review, recent progress on the photocatalytic materials used for the degradation of pharmaceutical personal care products (PPCPs) in environmental ...
Urvashi Sen, Gunjan Chauhan, Surbhi Soni, Monika Vats, Anand Kumar, Indra Bahadur   +5 more
wiley   +1 more source

Geotechnical improvement of dune sand embankments using rubber crumb and brick powder: RSM vs. ANN-GA hybrid optimization. [PDF]

Sci Rep
Benamara FZ, Kechkar C, Boumaaza M, Belaadi A, Sahraoui M, Hani M, Alshaikh IMH, Mezaouri S, Zaidi L, Ghernaout D, Chetbani Y.   +10 more
europepmc   +1 more source

Methane Pyrolysis Performance in Catalytic Molten Media for Hydrogen Production From the Perspective of Bubble Column Reactor Design and Configuration

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In the hydrogen production routes from natural gas (methane), methane pyrolysis offers a cleaner option than the established steam methane reforming by producing CO2‐free hydrogen. However, in fixed bed reactors over solid catalysts, this technology experiences rapid catalyst deactivation due to carbon (coke) deposition encapsulating its ...
Muhammad Irfan Fakarudin, Luqmanulhakim Baharudin, Matthew J. Watson, Wan Nor Roslam Wan Isahak   +3 more
wiley   +1 more source