Results 141 to 150 of about 420,355 (316)

The Liquid Rocket Engine Design System Using a New Thermo-Gas-Dynamic Calculation Method

Havacılık ve Uzay Teknolojileri Dergisi, 2019
As is well known, the energy specifications of a liquid rocket engine (LRE) determine the structural scheme, optimal geometric, mass, thrust, flight specifications and the efficiency of the rocket. Therefore, in the calculation of the LRE energy characteristics special attention is paid to thermochemical modeling of processes and the thermodynamic ...
Parviz Shahmurad Abdullayev, Nijad Abdullah   +1 more
openaire   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Evaluation of lateral sealing capability of fault-controlled gas storage at different periods. [PDF]

Sci Rep
Meng L, Fu X, Cheng J, Wang C, Zhang X, Kang T, Wang T, Zhang T.   +7 more
europepmc   +1 more source

Estimation of Dynamic Loads in Calculations of Aboveground Sections of Gas Pipelines

, 2018
V. Ya. Grudz, V. B. Zapuhliak, Т. F. Tutko, О. Ya. Dubei   +3 more
openalex   +2 more sources

Band Alignment in In‐Oxo Metal Porphyrin SURMOF Heterojunctions

Advanced Functional Materials, EarlyView.
Porphyrin core metalation in indium‑oxo SURMOFs enables systematic tuning of band edge positions without altering the crystal structure. First‑principles calculations reveal type‑I and type‑II heterostructures as well as multi‑junction energy cascades, establishing a modular strategy for exciton funneling and charge separation in optoelectronic ...
Puja Singhvi, Nina Vankova, Thomas Heine
wiley   +1 more source

Dynamic Temperature Calculation of Gas Insulated Bus Bars [PDF]

, 2019
Hua-Lin Wu, Meisheng Yi, Wei Cai, She Kai, Xiaofeng Peng, Xiaowen Wu   +5 more
openalex   +1 more source

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

The effect of different borehole spacing and detonation time difference on crack propagation in double-hole shaped charge blasting. [PDF]

PLoS One
Xu S, Wu B, Dou Z.
europepmc   +1 more source

Reevaluating the Activity of ZIF‐8 Based FeNCs for Electrochemical Ammonia Production

Advanced Functional Materials, EarlyView.
Though receiving much attention, the field of electrochemical nitrogen reduction reaction (eNRR) to ammonia is marked by doubts about whether this reaction is possible in aqueous media. This work sheds light on this question for iron single‐atom on N‐doped carbon (FeNC) catalysts—a class of well‐known catalysts that is also worth testing for the sister
Caroline Schneider, S. Esmael Balaghi, Niklas Ortlieb, Patrick Elsaesser, Sima Heidari, Christopher S. Allen, Anna Fischer   +6 more
wiley   +1 more source

Analysis and optimization of the J-T valve control logic for offshore oil and gas field low-temperature separators based on K-Spice. [PDF]

Sci Rep
Liu Y, Lin F, Zhu G, Yao Z.
europepmc   +1 more source