Results 81 to 90 of about 89,073 (340)

Sustainable Concrete for the 21st Century Concept of Strength through Durability [PDF]

open access: yes, 2008
The world is passing through difficult and troubled times, and we live in a rapidly changing world. The construction industry is facing many challenges – global warming, climate change forces, and the capability to achieve sustainable development and ...
Swamy, R.N.
core  

Optimized Asymmetrical Fuzzy‐2DOFTIDF Controller for LFC of Three‐Area Multi‐Sources Interconnected Power System Along With HAE‐FC and UPFC Using a New SOA Algorithm

open access: yesEnergy Science &Engineering, EarlyView.
This study proposes a novel Asymmetrical‐Fuzzy Two‐Degree‐of‐Freedom Tilt‐Integral‐Derivative (AF‐2DOF‐TIDF) controller for load frequency control in a multi‐area, multi‐source power system integrating Hydrogen‐Aqua‐Electrolyzer‐Fuel‐Cell (HAE‐FC) units and a Unified Power Flow Controller (UPFC).
Getaneh Mesfin Meseret, M. Bala Anand
wiley   +1 more source

Avaliação do comportamento de concretos de alto desempenho no estado fresco com o auxílio de um reômetro

open access: yesRevista IBRACON de Estruturas e Materiais
Para se estudar o comportamento do concreto no estado fresco, nada mais adequado do que aplicar os conceitos da reologia. Sabe-se que este material se comporta como um fluido binghamiano, sendo necessários dois parâmetros reológicos para sua ...
A. L. Castro   +2 more
doaj   +1 more source

Assessment of Voltage Unbalance and Power Losses in Distribution Network Integrated With PVs and EV Charging Stations

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT Unequal load distribution in three‐phase power distribution networks leads to voltage unbalance and decreased network efficiency. Integration of photovoltaics (PVs) and electric vehicle charging stations (EVCSs) into such networks is a challenging task as their penetration affects the power quality of the system.
Maaz Ahmad   +4 more
wiley   +1 more source

Environmentally Friendly Pervious Concrete for Treating Deicer-Laden Stormwater: Phase I [PDF]

open access: yes, 2015
A graphene oxide-modified pervious concrete was developed by using low-reactivity, high-calcium fly ash as sole binder and chemical activators and other admixtures.
Shi, Xianming, Xu, Gang
core  

Energy Storage System in Microgrids: Challenges and Opportunities

open access: yesEnergy Science &Engineering, EarlyView.
Hybrid integration of multiple Energy Storage Systems (ESSs) within renewable‐powered microgrids enhances reliability, flexibility, and economic sustainability. Lithium‐ion batteries, flow batteries, hydrogen storage, and thermal systems complement each other through coordinated control via Energy Management Systems.
Mohamed G. Moh Almihat, Josiah L. Munda
wiley   +1 more source

Kebolehacuanan suntikan logam mikro SS 316L menggunakan bahan pengikat PEG dan PMMA Mohd [PDF]

open access: yes, 2012
Pengacuanan suntikan logam mikro atau lebih dikenali µMIM merupakan satu proses yang berkesinambungan daripada proses penyuntikan logam. Proses ini menggunakan serbuk logam bersaiz mikro dan mampu menghasilkan produk mikro yang kompleks pada ...
Ibrahim, Mohd Halim Irwan
core  

Total replacement of recycled aggregate and treated wastewater: concrete recycling in extremis [PDF]

open access: yes, 2016
Million tons of construction and demolition waste (CDW) are generated every year around the world, and most of them are not adequately disposed, generating significant pollution on water, soil and air.
Cabrera Covarrubias, Francisca Guadalupe   +3 more
core   +2 more sources

Mitigating Microbial Contamination in Fresh Fruits and Vegetables Using Ultraviolet C Irradiation: A Review

open access: yesFood Safety and Health, EarlyView.
Although fresh produce is extremely perishable and contaminated, it is essential for good health. To eliminate important foodborne pathogens, this paper investigates UV‐C irradiation as a safe, nonthermal technique. UV dose, exposure duration, and product characteristics all affect effectiveness.
Krish Rauniyar, Ruplal Choudhary
wiley   +1 more source

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