Results 61 to 70 of about 2,703,297 (196)

Finite Element Method Simulation Study on the Temperature Field of Mass Concrete with Phase Change Material

open access: yesBuildings
Phase change materials can be converted between solid, liquid, and gaseous states, absorbing or releasing a large amount of heat. PCM is incorporated into concrete to adjust the temperature difference between inside and outside of concrete, which can ...
Renshan Chen   +3 more
doaj   +1 more source

Preparation of phase change wax@polyvinyl alcohol thermo-regulated finishing agents and its applications on cotton fabrics

open access: yesCailiao gongcheng, 2020
The thermo-regulated finishing agents were prepared by high speed shear emulsification with phase change wax as energy storage and temperature control materials, polyvinyl alcohol (PVA) as coating materials, and then the cotton fabrics were treated by ...
LIU Guo-jin   +3 more
doaj   +1 more source

Normal-state magnetotransport in La_{1.905}Ba_{0.095}CuO_{4} single crystals

open access: yes, 1998
The normal-state magnetotransport properties of La_{2-x}Ba_{x}CuO_{4} single crystals with x=0.095 are measured; at this composition, a structural transition to a low-temperature-tetragonal (LTT) phase occurs without suppression of superconductivity ...
Abe, Yasushi   +6 more
core   +1 more source

Semimetal to semimetal charge density wave transition in 1T-TiSe$_2$ [PDF]

open access: yes, 2007
We report an infrared study on 1$T$-TiSe$_2$, the parent compound of the newly discovered superconductor Cu$_x$TiSe$_2$. Previous studies of this compound have not conclusively resolved whether it is a semimetal or a semiconductor: information that is ...
Cava, R. J.   +7 more
core   +2 more sources

Simulation study on thermal performance of novel phase change double skin facade

open access: yesXi'an Gongcheng Daxue xuebao
To address the issues of poor natural ventilation in double skin facades (DSF) and the excessive indoor temperature caused by solar radiation during summer, phase change material (PCM) is organically integrated into the DSF system, which proposes a novel
FU Yunchao   +4 more
doaj   +1 more source

Crystal structure of solid Oxygen at high pressure and low temperature

open access: yes, 2001
Results of X-ray diffraction experiments on solid oxygen at low temperature and at pressures up to 10 GPa are presented.A careful sample preparation and annealing around 240 K allowed to obtain very good diffraction patterns in the orthorhombic delta ...
A.P. Hammersley   +24 more
core   +1 more source

Liquid Crystals as Phase Change Materials for Thermal Stabilization

open access: yesAdvances in Condensed Matter Physics, 2018
Thermal stabilization exploiting phase change materials (PCMs) is studied theoretically and numerically. Using the heat source approach in numerical simulations, we focus on phase change temperature as a key factor in improving thermal stabilization. Our
Eva Klemenčič, Mitja Slavinec
doaj   +1 more source

Magnetic and magnetocaloric properties of quasi-one-dimensional Ising spin chain CoV$_{2}$O$_{6}$

open access: yes, 2016
We have investigated the magnetic and magnetocaloric properties of antiferromagnetic Ising spin chain CoV$_{2}$O$_{6}$ by magnetization and heat capacity measurements.
Mandal, P., Nandi, M.
core   +1 more source

Study on Preparation and Thermophysical Properties of Binary Paraffin Phase Change Concrete

open access: yesInternational Journal of Concrete Structures and Materials
The binary phase change paraffin (BP) was prepared using the melt blending method, followed by adsorption and encapsulation to produce the phase change aggregate.
Zhiwen Jia   +4 more
doaj   +1 more source

Pressure-induced phase transitions and high-pressure tetragonal phase of Fe1.08Te

open access: yes, 2012
We report the effects of hydrostatic pressure on the temperature-induced phase transitions in Fe1.08Te in the pressure range 0-3 GPa using synchrotron powder x-ray diffraction (XRD). The results reveal a plethora of phase transitions. At ambient pressure,
A. A. Tsirlin   +9 more
core   +1 more source

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