Results 61 to 70 of about 58,589 (317)
Energy Balancing of Electrochemical Alternatives to the Solvay Process
Chemie Ingenieur Technik, EarlyView.To overcome the CaCl2 and CO2 emissions custom to the conventional Solvay process in soda ash production, electrochemically based alternatives were investigated. In particular, the mass‐ and energy balances for chlor‐alkali electrolysis and bipolar electrodialysis‐based processes are discussed comprehensively in the presented work.
Tom Wenzel +3 more
wiley +1 more source
Computer Aided Education Systems in Knowledge Based Society: from SUPER-Test to MULTIMEDIA & OFFICE-Test [PDF]
This paper analyzes the testing and self-testing processes for the Computer Aided Education System (CAES) SuperTest Package [14], used at the Academy of Economic Studies of Chisinau, Moldova and recently implemented at the University of Bacau, Romania ...
Dumitru TODOROI +4 more
core
Vanadium redox flow batteries: Potentials and challenges of an emerging storage technology [PDF]
, 2016 open4noIn this paper an overview of Vanadium Redox Flow Battery technologies, architectures, applications and power electronic interfaces is given.
Guarnieri, Massimo +3 more
core +1 more source
Study on fracture parameter calibration and failure characteristics of rock with hole and crack
Deep Underground Science and Engineering, EarlyView.The SIF and plastic zone equations for a single hole and crack have been derived. The model's failure state leads to the identification of four types of cracks. The plastic zone increases with increased brittleness and decreased crack length. Abstract Cracks within the surrounding rock of roadways significantly affect their stability and failure ...
Shaochi Peng, Wensong Wang
wiley +1 more source
Thermodynamic analysis of a novel fossil-fuel–free energy storage system with a trans-critical carbon dioxide cycle and heat pump [PDF]
, 2020 This paper presents and analyzes a novel fossil-fuel–free trans-critical energy storage system that uses CO2 as the working fluid in a closed loop shuttled between two saline aquifers or caverns at different depths: one a low-pressure reservoir and the ...
Hao, Y +4 more
core +1 more source
Deep Underground Science and Engineering, EarlyView.An analytical framework delivers a closed‐form stress solution for lined compressed air energy storage chambers, enabling the determination of the minimum safe burial depth. The solution quantitatively evaluates lining support effectiveness, offering a reliable tool for chamber design and optimization.
Zeyuan Sun +3 more
wiley +1 more source
DEVOÇÃO, EDUCAÇÃO E SERVIÇO: A PROPOSTA DA ORGANIzAÇÃO SATHyA SAI BABA
Interações, 2014 A Organização Sathya Sai Baba surgiu na Índia, em 1967, com o intuito de divulgar e estimular a prática dos ensinamentos do líder espiritual indiano Sai Baba.
André Luiz Caes
doaj
Modeling Loss-of-Flow Accidents and Their Impact on Radiation Heat Transfer
Science and Technology of Nuclear Installations, 2017 Long-term high payload missions necessitate the need for nuclear space propulsion. The National Aeronautics and Space Administration (NASA) investigated several reactor designs from 1959 to 1973 in order to develop the Nuclear Engine for Rocket Vehicle ...
Jivan Khatry, Fatih Aydogan
doaj +1 more source
Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, 2020 Wheat genotypes with pre- and post-anthesis drought tolerance offer enhanced yield gains under water-limited environments. This study determined pre- and post-anthesis drought responses of selected bread wheat genotypes in order to identify and select ...
Sibusiswangaye Yolanda Mdluli +2 more
doaj +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.The electron transfer from the grafted ATMP to the adjacent heptazine ring can induce the proton transfer of the hydroxyls on ATMP to Pt co‐catalyst nanoparticles. This coupling of proton transfer and electron transport also promotes the separation and transport of charge carriers and therefore advances the performance of photocatalytic hydrogen ...
Yike Li +5 more
wiley +1 more source