Results 141 to 150 of about 291,620 (325)

Effect of gas hydrates on physical properties of permafrost

Georesursy
Permafrost stores large amounts of natural gas in free and hydrate (clathrate) forms. Intrapermafrost gas hydrates were revealed in frozen core samples recovered from test, exploration, and production wells in the Arctic oil and gas fields. Being similar
E. M. Chuvilin, B. A. Bukhanov, S. I. Grebenkin, M. V. Zhmaev   +3 more
doaj   +1 more source

Colloid‐Mediated Synthesis of Hierarchically Porous Amorphous Catalyst for Durable Industrial‐Scale Water Electrolysis

Advanced Materials, EarlyView.
A colloid‐mediated electroless plating (CMEP) strategy is proposed to fabricate hierarchically porous, amorphous Fe‐doped NiWB electrocatalysts under ambient conditions. The in situ formation of Fe‐W‐O colloidal species guides the formation of robust, porous catalyst layers with excellent mass transfer and durability, sustaining 500 mA cm−2 for 2000 h,
Yu Liao, Lei Li, Jingxian Zhang, Yangyang Chen, Sha Luo, Yan Qing, Cuihua Tian, Guanjie He, Yiqiang Wu   +8 more
wiley   +1 more source

Autonomous Hydrogel Actuators Programmed by Endogenous Biochemical Logic for Dual‐Stage Morphing and Drug Release

Advanced Materials, EarlyView.
A 3D‐printed BSA–PEGDA bilayer actuator performs biochemical logic, bending autonomously in acid and releasing its drug payload only when both acid and pepsin are present. This dual‐stage, enzyme‐gated mechanism enables autonomous catch‐and‐release motion and controlled gastric drug delivery, representing a programmable soft material powered by ...
Yuchen Liu, Harischandra Potthuri, Alejandro Sosnik, Luai R. Khoury   +3 more
wiley   +1 more source

Environmentally Friendly Pervious Concrete for Treating Deicer-Laden Stormwater: Phase II [PDF]

, 2018
In Phase I of this project, graphene oxide (GO)-modified pervious concrete was developed using coal fly ash as the sole binder. The primary objectives of Phase II of this project were (1) to evaluate the stormwater infiltration capacity of GO-modified ...
Shi, Xianming, Xu, Gang
core  

Eutectozymes as Soft Hybrid Materials for Advanced Biocatalysis

Advanced Materials, EarlyView.
Eutectozymes are sustainable hybrid materials that embed a GOx–HRP cascade within hydrophobic eutectogels featuring a dual supramolecular–covalent network. This architecture preserves native enzyme structure and stability, enables efficient heterogeneous biocatalysis in aqueous media, and positions eutectogels as robust platforms for next‐generation ...
Manuel Eduardo Martinez Cartagena, Lucia Suarez, Aitor Ontoria, Francisca J. Benitez, Elixabete Rezabal, María Soledad Orellano, Marcelo Calderón, Cristián Huck‐Iriart, Agustin S. Picco, Matias L. Picchio, Ana Beloqui   +10 more
wiley   +1 more source

WORLD SURVEY OF TECHNOLOGY OF GAS PRODUCTION FROM GAS HYDRATES

RUDN Journal of Engineering Research, 2015
The work analyzes the world’s methods of extracting natural gas from the solid gas hydrates, as well as disadvantages that arise when using these methods.
A E Vorobiev, M V Golobthenko, A V Yankevsky   +2 more
doaj  

Methane Hydrates: More Than a Viable Aviation Fuel Feedstock Option [PDF]

Demand for hydrocarbon fuels is steadily increasing, and greenhouse gas emissions continue to rise unabated with the energy demand. Alternate fuels will be coming on line to meet that demand.
Hendricks, Robert C.
core   +1 more source

Features of borehole hydraulic mining technology applied to the development of gas hydrate reservoirs [PDF]

, 2018
Обґрунтовано основні процеси способу вилучення газогідрату із продуктивного пласта без витрати енергії на фазовий перехід на основі технології свердловинного гідровидобутку.
Педченко, Л., Педченко, Н.   +1 more
core  

Materials and System Design for Self‐Decision Bioelectronic Systems

Advanced Materials, EarlyView.
This review highlights how self‐decision bioelectronic systems integrate sensing, computation, and therapy into autonomous, closed‐loop platforms that continuously monitor and treat diseases, marking a major step toward intelligent, self‐regulating healthcare technologies.
Qiankun Zeng, Hong Liu, Yongheng Zhang, Youbin Zheng, Xuyin Ding, Mengni Zhu, Guoyue Shi, Yan Wang, Hossam Haick, Min Zhang   +9 more
wiley   +1 more source

Perspective on Aqueous Batteries: Historical Milestones and Modern Revival

Advanced Materials, EarlyView.
This review retraces the development of aqueous batteries from classical Zn‐MnO2 chemistry to modern Zn and Ni systems, correlating voltage, capacity, and electrolyte formulation with practical performance. By mapping historical success and failure onto current and future research directions, it identifies guiding principles that steer the design of ...
Fangwang Ming, Dong Guo, Yizhou Wang, Hussam Qasem, Hanfeng Liang, Husam N. Alshareef   +5 more
wiley   +1 more source