Results 51 to 60 of about 4,619,412 (287)

Optimal frequency of temperature change of a heat transfer agent on a heat source and the influence of the rate of change thereof on heat energy loss

Известия высших учебных заведений: Проблемы энергетики, 2023
THE PURPOSE. In modern realities, the operation of heat networks of the district heating system involves a constant search for ways to minimize heat energy losses. METHODS.
I. G. Akhmetova, K. V. Lapin
doaj   +1 more source

Survey of radiator temperatures in buildings supplied by district heating [PDF]

Energy, 2017
In order to maintain the competitiveness and improve the environmental performance of district heating in the future, it is essential to transition to lower operating temperatures than those of current third-generation district heating systems. Heat demands are expected to decrease as buildings become more energy efficient, and new types of heat ...
M. Jangsten, J. Kensby, J.-O. Dalenbäck, A. Trüschel   +3 more
openaire   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Thermoeconomics as a tool for the design and analysis of energy savings initiatives in buildings connected to district heating networks [PDF]

, 2012
District Heating (DH) is a rational way to supply heat to buildings in urban areas. This is expected to play an important role in future energy scenarios, mainly because of the possibility to recover waste heat and to integrate renewable energy sources ...
Kona Albana, Verda, Vittorio, KONA, ALBANA   +2 more
core  

North Jersey District Water Supply Commission of the State of New Jersey, Report for the Period May 5, 1916 to June 30, 1925

, 1925
In the text which follows the accomplishments of the North Jersey District Water Supply Commission are described, and in addition there is gathered together, for the information of the reader, a brief history of water supply situation preceding the ...

core   +1 more source

UPDATED HEAT BALANCE OF SUPPLIED HEAT ENERGY BY THE DISTRICT HEATING SYSTEM

Energy Technologies & Resource Saving
District heating systems are significant energy consumers in Ukraine and globally. The current regulatory documents in Ukraine that define the methodology for calculating the heat balance of a district heating system and the value of standard heat losses do not take into account some hidden heat losses that affect the prospects for economic growth of ...
V.L. Zviahintsev, V.M. Kozin, O.V. Ivchenko   +2 more
openaire   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

FEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization

Molecular Oncology, EarlyView.
In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu, Nicolas J. Niklaus, Anna M. Schläfli, Igor Tokarchuk, Magali Humbert, Federico La Manna, Bich Vu, David Maul, Ramin Radpour, Marianna Kruithof‐de Julio, Inti Zlobec, Jörn Dengjel, Bruce E. Torbett, Mario P. Tschan   +13 more
wiley   +1 more source

Assessing the sustainability of biomass supply chains for energy exploitation [PDF]

, 2014
Biomass use has increased significantly lately, partly due to conventional fuels price increase. This trend is more evident in rural areas with significant local biomass availability. Biomass may be used in various ways to generate heat.
Rentizelas, Athanasios
core   +3 more sources

Economic comparison of low-temperature and ultra-low-temperature district heating for new building developments with low heat demand densities in Germany

International Journal of Sustainable Energy Planning and Management, 2018
District heating risks to lose competitiveness the lower the linear heat density of a district is. The distribution network needs to be highly efficient in order to ensure economic feasibility.
Isabelle Best
doaj   +1 more source