Results 121 to 130 of about 497,436 (275)

Helium resources accumulation regulations and their development prospects in China

Journal of Natural Gas Geoscience
Helium is a globally scarce strategic resource that is relevant to national economies and the development of high-tech industries, and China primarily depends on imported helium for its industrial applications.
Jian Li, Xiaobo Wang, Zhusong Xu, Huiying Cui, Xiaomei Wang, Bin Zhang, Jianying Guo, Shizhen Tao, Jianfa Chen, Zengye Xie, Jixian Tian, Yifeng Wang   +11 more
doaj   +1 more source

Lewis Pair‐Engineered CuMnOx as Cold‐Adapted Multinanozyme for Cooperative Hydrolytic and Oxidative Degradation of Raw Corn Stalk

Advanced Science, EarlyView.
A Lewis pair site design strategy was established to construct Cu‐doped Mn‐based amorphous nanozymes, where Mn and oxygen vacancies generate cooperative acid‐base pairs. The resulting multinanozyme integrates glycosidase‐, oxidase‐, and cold‐adapted enzyme‐mimicking activities, enabling cooperative depolymerization of cellulose and hemicellulose ...
Huile Liu, Ziyi Di, Qing Tian, Yue Zhou, Rong Yang, Zhiyi Bai, Haoyu Wang, Yao Chen, Lianbing Zhang   +8 more
wiley   +1 more source

Molecular simulation of adsorption and diffusion behaviors of high-concentration helium in salt cavern storage reservoirs

Meitian dizhi yu kantan
BackgroundArtificial salt cavern underground helium storage is the optimal approach for achieving long-term, large-scale strategic helium storage and represents an essential solution for establishing an autonomous, controllable helium supply system.
Zeya CHEN, Qiqi WANYAN, Mancang LIU, Xiaoqiang LIU, Jianfa CHEN, Kang LI, Jianan WU, Bing YOU   +7 more
doaj   +1 more source

Helium high [PDF]

Nature, 2014
openaire   +2 more sources

Engineering New‐to‐Nature Biological Pathways for β,γ‐Alkanediol Synthesis

Advanced Science, EarlyView.
β,γ‐Alkanediols are value‐added chemicals to be used as functional solvents, biofuels, and cosmetic components. This work demonstrates a carboligation‐mediated approach for synthesis of linear chain β,γ‐alkanediols in Escherichia coli, namely, hexane‐2,3‐diol (2,3‐HDO) and pentane‐2,3‐diol (2,3‐PDO). The engineered E. coli cells produce 152.2 mm (17.98
Haofeng Chen, Haidong Yu, Dongjiang Lin, Guojun Yang, Yuchen Xie, Yang Zhang, Jifeng Yuan   +6 more
wiley   +1 more source

Re‐evaluation of argon (E 938) and helium (E 939) as food additives

EFSA Journal
The Panel on Food Additives and Flavourings (FAF) provides a scientific opinion re‐evaluating the safety of the two food additives argon (E 938) and helium (E 939). Argon (Ar) and helium (He) are two noble gases, highly stable single atoms.
EFSA FAF Panel (EFSA Panel on Food Additives and Flavourings), Laurence Castle, Monica Andreassen, Gabriele Aquilina, Maria Bastos, Polly Boon, Biagio Fallico, Reginald Fitzgerald, Maria Jose Frutos Fernandez, Bettina Grasl‐Kraupp, Ursula Gundert‐Remy, Rainer Gürtler, Eric Houdeau, Marcin Kurek, Henriqueta Louro, Patricia Morales, Sabina Passamonti, Salvatore Multari, Josef Daniel Rasinger, Ana Maria Rincon, Sam Vermeiren, Camilla Smeraldi   +21 more
doaj   +1 more source

A new genesis method-based methodology for helium resource evaluation: Application to the Jinzhong Basin and its geological implications

Meitian dizhi yu kantan
BackgroundHelium, a strategic resource in short supply, primarily occurs in natural gas. In China, helium resource assessment remains in its nascent stage, and limited helium exploration and exploitation have been conducted in general.
Qiao ZHANG, Junlin ZHOU, Shangwei MA, Wang GUO, Yuhong LI, Yunpeng ZHANG, Yuxuan ZHANG, Haihong XU, Jiawei WANG   +8 more
doaj   +1 more source

A Metal‐Free Carbon Monoxide Prodrug Suppresses Metastasis of Pancreatic and Breast Cancer

Advanced Science, EarlyView.
A metal‐free carbon monoxide (CO) prodrug, CO‐116, delivers controlled systemic CO without inhalation. CO suppresses the HRG1–heme axis, reducing intracellular heme availability. Attenuation of this pathway inhibits metastatic progression in pancreatic and triple‐negative breast cancer models.
Tiantian Zhang, Xiang Chen, Xiaoxiao Yang, Muskan Gori, Rohit Kumar Varshnaya, Dongning Liu, Cheryl Zhang, Michelle Yi Qin Chen, Zhengming Chen, George Zhang, Erika Patel, Qiyue Mao, Tan A. Ince, Chalet Tan, Binghe Wang, Yi‐Chieh Nancy Du   +15 more
wiley   +1 more source

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

Advanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim, Wonjae Ko, Byoung‐Hoon Lee, Sanghoon Kim, Yun Do Kim, Hyunsoo Ahn, Yoon Jung, Chan Woo Lee, Kug‐Seung Lee, Eunhee Gong, Junho Lee, Minho Kim, Taeghwan Hyeon, Su‐Il In   +13 more
wiley   +1 more source

New Promises and Challenges on Inflammation and Atherosclerosis: Insights From CANTOS and CIRT Trials

Frontiers in Cardiovascular Medicine, 2019
Raymond D. Palmer, Mauro Vaccarezza
doaj   +1 more source