Results 41 to 50 of about 12,466 (183)

ORC-Q

open access: yesDiagnostica
Abstract: Organizational changes as a method for ensuring competitiveness are an integral part of an organization’s daily life. A comprehensive understanding of organizational readiness for change is essential for managing change successfully and in a goal-oriented manner.
Hendrik Gräfe, Simone Kauffeld
openaire   +1 more source

Design and Optimization of a Novel Kalina‐Organic Rankine Cycle System Based on LNG Cold Energy Utilization

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study proposes a novel integrated system (SDKC‐DORC) that combines a split‐flow dual‐pressure Kalina cycle with a secondary organic Rankine cycle for the synergistic utilization of solar energy and liquefied natural gas (LNG) cold energy.
Ke Xiao   +6 more
wiley   +1 more source

HIV testing in national population-based surveys: experience from the Demographic and Health Surveys

open access: yesBulletin of the World Health Organization, 2006
OBJECTIVES: To describe the methods used in the Demographic and Health Surveys (DHS) to collect nationally representative data on the prevalence of human immunodeficiency virus (HIV) and assess the value of such data to country HIV surveillance systems ...
Vinod Mishra   +8 more
doaj  

Design and development of a 10-kWe ORC installation working with low-temperature sources

open access: yesInternational Journal of Sustainable Energy, 2018
This paper presents results of the experimental study for a 10-kWe Organic Rankine Cycle (ORC) unit that has been designed and developed in order to study its performance when solar or geothermal sources are used.
Maria K. Koukou   +3 more
doaj   +1 more source

Comparative Analysis of Small-Scale Integrated Solar ORC-Absorption Based Cogeneration Systems

open access: yesEnergies, 2020
This paper aims to present a comparative study into the cascade and series configurations of the organic Rankine cycle based small-scale solar combined cooling, heating and power system for civil application.
Xiaoqiang Hong, Feng Shi
doaj   +1 more source

Integrated Flue‐Gas Heat Recovery for Optimized Steam and Power Generation Using Organic Rankine Cycle (ORC): A Technical and Economic Assessment

open access: yesEnergy Science &Engineering, EarlyView.
Integration of a steam cycle with an existing gas turbine increased efficiency from 32% to 51%, reducing fuel consumption by 21.4% and CO2 emissions by 18.6%. The modification generated USD 13.9 million annual savings and lowered the Levelized Cost of Energy to 38.7 USD/MWh, with a 3‐year payback.
Vahid Pirouzfar   +2 more
wiley   +1 more source

Intelligent Control Framework of District Heating Systems Considering Waste Heat Utilization in Data Centers

open access: yesEnergy Science &Engineering, EarlyView.
A deep reinforcement learning–based control architecture is proposed to coordinate heat pumps, thermal storage, renewable energy, and demand response in data center waste heat recovery systems. The agent learns optimal control actions from system states and reward feedback to achieve electrical–thermal co‐optimization under realistic operational ...
Rendong Shen   +5 more
wiley   +1 more source

Factors associated with trends in infant and child mortality in developing countries during the 1990s

open access: yesBulletin of the World Health Organization, 2000
The 1990s have seen a remarkable decrease in mortality among infants and children in most developing countries. In some countries, particularly in sub-Saharan Africa, these declines in mortality among children have slowed and are now increasing again ...
Shea O. Rutstein
doaj  

Towards improvement of waste heat recovery systems: A multi-objective optimization of different organic Rankine cycle configurations

open access: yesInternational Journal of Thermofluids, 2021
In industrial processes, a significant amount of waste heat is produced. However, most of the low-grade waste heat is directly dismissed into the environment without being used.
Youcef Abdellah Ayoub Laouid   +3 more
doaj   +1 more source

Microengineering the Liver: Strategies for Constructing Functional Liver‐on‐a‐Chip Devices

open access: yesExploration, EarlyView.
This review summarizes recent advances in liver‐on‐a‐chip (LOC) technologies, including fabrication strategies and functional integration approaches, and discusses their promising applications in drug screening and related biomedical fields. ABSTRACT Reliable in vitro liver models are indispensable for researching liver diseases and developing ...
Jie Wang   +7 more
wiley   +1 more source

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