Results 21 to 30 of about 8,311 (268)

Quantitative evaluation of the complementarity and capacity ratio of large-scale wind power and photovoltaic

open access: yesJournal of Applied Science and Engineering
Aiming at the problem that the existing correlation analysis can’t clearly describe the change characteristics of wind power and photovoltaic, this paper takes the clean energy base in the upper reaches of the Yellow River as an example to study the ...
Naihui Peng   +7 more
doaj   +1 more source

A Quantum Dynamics Simulation of the Adsorption of Water/Oxygen on Perovskite Material

open access: yesReactions
The stability of perovskite materials in humid conditions significantly hinders their practical deployment. This study employed ab initio molecular dynamics (AIMD) simulations based on the Car–Parrinello approach to elucidate the adsorption mechanisms ...
Jingyang Wu   +5 more
doaj   +1 more source

RESEARCH ON SHUTDOWN STRESS AND FATIGUE LIFE OF AIR CONDITIONING PIPING

open access: yesJixie qiangdu, 2021
It is very important to determine the reasonable shutdown stress of air-conditioning piping,and it is related to the piping reliability and development cost.
WANG Xuan, ZHANG JieXi, HUANG JianNan
doaj  

Loess-Scape in the Dobrudja Plateau (Romania). Landforms and Updated Typology

open access: yesPresent Environment and Sustainable Development, 2018
The study of loess and loess-like deposits in Romania has developed considerably, over the years. C14 dating determined that the last three glaciations (Mindel, Riss, Würm) and, at least, two interglacial periods were recorded in the Dobrudja Plateau ...
Romanescu Gheorghe   +3 more
doaj   +1 more source

A Study on the Generation Mechanism and Development Process of Piping Based on the Theory of Muddy Water Seepage

open access: yesGeofluids, 2022
In the process of piping development, the sediment carried by seepage causes the change of porosity and then causes the change of permeability coefficient. Therefore, piping belongs to muddy water seepage (i.e., unstable seepage).
Jun Gao   +5 more
doaj   +1 more source

Incorporating Location Aspects in Process Integration Methodology

open access: yesEnergies, 2019
The large potential for waste resource and heat recovery in industry has been motivating research toward increasing efficiency. Process integration methods have proven to be effective tools in improving industrial sites while decreasing their resource ...
Hür Bütün   +2 more
doaj   +1 more source

Optimization of inconel 625 laser cladding on X65 steel via response surface methodology

open access: yesScientific Reports
To meet the extreme corrosion resistance requirements of deep-sea API 5 L X65 carbon steel pipelines, this study utilizes the Box-Behnken response surface methodology to optimize the laser cladding of Inconel 625.
Zheng Zhang   +4 more
doaj   +1 more source

Cost-Optimal Heat Exchanger Network Synthesis Based on a Flexible Cost Functions Framework

open access: yesEnergies, 2019
In this article an approach to incorporate a flexible cost functions framework into the cost-optimal design of heat exchanger networks (HENs) is presented.
Matthias Rathjens, Georg Fieg
doaj   +1 more source

Pipe-to-pipe impact program [PDF]

open access: yes, 1984
This report documents the tests and analyses performed as part of the Pipe-to-Pipe Impact (PTPI) Program at the Pacific Northwest Laboratory. This work was performed to assist the NRC in making licensing decisions regarding pipe-to-pipe impact events following postulated breaks in high energy fluid system piping.
Alzheimer, J. M.   +3 more
openaire   +2 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

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