Results 81 to 90 of about 9,406,850 (295)

Macromolecular Model Construction and Pore Structure Distribution of Coals with Different Ranks

Molecules
This study investigates lignite, long-flame coal, coking coal, and anthracite to elucidate the rank-dependent evolution of coal macromolecular structure and pore systems. Elemental/proximate analyses, FTIR, XPS, 13C NMR, and low-temperature N2 adsorption–
Xiaoyue Zhao, Xihua Zhou, Yu Cao
doaj   +1 more source

Thermochemical utilization of low rank coal and flotation concentrate

Journal of Sustainable Mining, 2019
Flotation concentrates are waste material from coal mine operation. The process of steam gasification seems to be an attractive option for their economic utilization and an alternative to their potential combustion in boilers. The gasification process is
Rafał Gąsior, Adam Smoliński
doaj   +1 more source

Ultrathin 2D In2O3 Nanosheets Confining Cu Single Atoms Synergized With Oxygen Vacancies for High Selectivity of Photocatalytic Reduction of CO2 to CO

Advanced Science, EarlyView.
In this work, we constructed an ultrathin two‐dimensional (2D) In2O3 nanosheet (In2O3‐Ns) structure based on oxygen vacancies (OV)‐rich defects and low crystallinity to anchor Cu single atoms (Cu SAs) and synthesized Cu/In2O3‐Ns photocatalysts. ABSTRACT In this work, we constructed an ultrathin two‐dimensional (2D) In2O3 nanosheet (In2O3‐Ns) structure ...
Yueying Yang, Xuan Xiang, Jiali Ren, Ying Bian, Xinyu Wang, Xiaoyang Lu, Yanjun Xue, Porun Liu, Cheng‐Hao Chuang, Xiaoli Zhang, Jian Tian   +10 more
wiley   +1 more source

Mathematical Modeling For Upgrading Low Rank Coal To High Rank Coal [PDF]

, 2005
A plant was designed and fabricated to carbonize the low rank coal to high rank coal that is environmental friendly pilot plant. The outcome of the semi-coke or high rank coal which are smokeless fuel, high carbon content, low moisture content and ...
Chan, Chun Seng
core   +1 more source

Microbial degradation of low rank coals

Fuel Processing Technology, 2002
Abstract The strain of Pseudomonas putida was tested in terms of the degradation ability of organic matter of lignites and subbituminous coals. The conversion degree to water soluble products and structural characteristics of bioextracts and bioresidues by elemental analysis and infrared spectroscopy were assessed.
Helena Machnikowska, Kamila Pawelec, Anna Podgórska   +2 more
openaire   +1 more source

A Preclinical Multifunctional Capsule Robot with Unified Diagnosis and Targeted Thermal Therapy for Gastrointestinal Diseases

Advanced Science, EarlyView.
A proof‐of‐concept multifunctional capsule robot integrates diagnostic imaging, magnetic navigation, wireless power transfer, and targeted thermotherapy for gastrointestinal applications. Magnetically guided positioning and stable wireless power enable localized thermal ablation, achieving controlled heating and high cell mortality in vitro.
Heng Zhang, Yichong Sun, Xiaoting Zhang, Chi‐Kwan Lee, Zheng Li, Yehui Li, Huarong Chen, Paul D. Mitcheson   +7 more
wiley   +1 more source

Research on the potential and strategy for coal resources exploitation in Xinjiang

Meitan xuebao
In view of the uniqueness of the occurrence conditions of coal resources in Xinjiang and the fragility of the ecological environment in the coal occurrence area, it is urgent to develop coal resources in Xinjiang scientifically. Therefore, in this paper,
Zhengfu BIAN, Yidong ZHANG, Meng WANG, Changshen WANG, Xiaotong HAN, Shouguo MU, Qingchen REN, Guodong LI   +7 more
doaj   +1 more source

Phase Separation of SF3B1 Serves as a Critical Post‐Transcriptional Regulator During Early Mouse Embryogenesis

Advanced Science, EarlyView.
Phase separation of SF3B1 acts as a key regulatory mechanism for dynamic alternative splicing throughout early mouse embryogenesis. Its absence triggers extensive splicing errors, which induce persistent DNA damage, defective cell cycle progression, and failed cell lineage commitment, and ultimately hinder the normal growth and development of ...
Kang Zhao, Ting‐Yu Han, Yan‐Li Cheng, Yi‐Dan Zhang, Yu‐Wei Zhang, JinJian Guo, ShaoJun Zhang, WenZe Huang, Jing Zhang, Pei‐Yu Liao, Ying Xin, ChuanChen Chu, Qing‐Yuan Sun, ZhiZhen Liu, Xiang‐Hong Ou, Jun Xie   +15 more
wiley   +1 more source

Generation stages and genetic types of coal-rock gas in China

Petroleum Exploration and Development
Based on the molecular structure transitions, hydrocarbon composition, and reservoir characteristics changes during coal evolution, combined with the production characteristics of coal-rock gas, the generation stages and genetic types of coal-rock gas in
Shuichang ZHANG, Bin ZHANG, Xingzhi MA, Yong TANG, Zeliang LIANG, Longde SUN   +5 more
doaj   +1 more source

Architected Spatially Deterministic Multiscale Phase Segregation in Block Copolymer Composites for Augmented Radiative Cooling

Advanced Science, EarlyView.
Multiscale phase segregation in block copolymers enables spatially deterministic structuring from molecular to macroscopic scales, decoupling solar scattering and infrared emission for augmented radiative cooling. ABSTRACT Passive radiative cooling, which reflects solar irradiation while emitting heat through the atmospheric window, provides a ...
Mingxin Feng, Feiyang Zhou, Haoran Cai, Wenchao Zhai, Shuangjiang Feng, Yanmei Liu, Xiaohai Bu, Man He, Dudong Feng, Shuang Liang, Yuming Zhou   +10 more
wiley   +1 more source