Results 121 to 130 of about 1,543 (298)

Research Progress in Composite-enhanced Flow Boiling Heat Transfer for Refrigerants

Zhileng xuebao
Improvements in heat transfer performance and efficiency through a single heat transfer enhancement technology are limited. Hence, composite-enhanced heat transfer technologies must be developed to improve resource utilization rates and reduce energy ...
Tian Xingwang, Xu Zhentao, Zhang Kun, Chen Cong, Xu Shiming   +4 more
doaj  

A High Energy Barrier DyIII2 Single‐Molecule Magnet Supported by a Bulky, Anionic N–O Bridging Ligand

Chemistry – A European Journal, EarlyView.
Complex [Dy2(hynad)2(dbm)4] was prepared by the employment of the anionic N–O‐based bridging and chelating N‐hydroxy‐1,8‐naphthalimide ligand, featuring a {Dy2(µ‐OR)2}4+ core and exhibiting zero‐field SMM behavior with a Ueff value of 171 K and double‐S‐shaped hysteresis loops, open up to 3.5 K.
Alexandros S. Armenis, Concepción Molina‐Jirón, Konstantinos N. Pantelis, Wolfgang Wernsdorfer, Mario Ruben, Eufemio Moreno‐Pineda, Theocharis C. Stamatatos   +6 more
wiley   +1 more source

Thermal and electrical conductivity of magnetic refrigerant holmium diboride for magnetic refrigerator application

Cryogenics
Embargo Period 24 months.
Koichi Matsumoto, Hironori Hasegawa, Masaki Horie, Hideaki Kitazawa, Akiko T. Saito, Takenori Numazawa   +5 more
openaire   +2 more sources

Ternary Dy-Er-Al magnetic refrigerants

, 1995
A ternary magnetic refrigerant material comprising (Dy.sub.1-x Er.sub.x)Al.sub.2 for a magnetic refrigerator using the Joule-Brayton thermodynamic cycle spanning a temperature range from about 60K to about 10K, which can be adjusted by changing the Dy to
Gschneidner, Karl, Takeya, Hiroyuki
core  

Magnetic entropy table-like shape and enhancement of refrigerant capacity in La1.4Ca1.6 Mn2O7 –La1.3Eu0.1Ca1.6Mn2O7 composite

, 2019
International audienceIn this work, we have investigated the structural, magnetic and magnetocaloric properties of La1.4Ca1.6Mn2O7 (A) and La1.3Eu0.1Ca1.6Mn2O7 (B) oxides.
Nofal, Muaffaq, de Rango, Patricia, de Rango, P., M'Nassri, R., Chniba-Boudjada, N., Nofal, Muaffaq M., Boudjada, Nassira   +6 more
core   +1 more source

Tetradecanuclear {Ni9Ln5} Clusters Featuring Encapsulated {Ln5} Trigonal Bipyramids: Modular 3d‐4f Architectures With Broad‐Range Magnetocaloric Response

Chemistry – A European Journal, EarlyView.
The use of 2‐aminoisobutyric acid in 3d–4f chemistry affords three {Ni₉Ln5} clusters, with the Gd analogue exhibiting an unusually broad magnetocaloric effect across an extended temperature range. ABSTRACT The solvothermal reaction between Ni(HCOO)2.2H2O, 2‐aminoisobutyric acid (aibH), Ln(OAc)3·4H2O (Ln = Gd, Y, Dy) and NEt3 in MeOH/MeCN affords the ...
Thomais G. Tziotzi, Evangelia G. Asmargiannaki, Ben Thamm, Scott J. Dalgarno, Emmanouil K. Charkiolakis, Marc Ubach I. Cervera, David Gracia, Marco Evangelisti, Constantinos J. Milios   +8 more
wiley   +1 more source

Magnetic properties and magnetocaloric effects of rare-earth based high-entropy amorphous microwires

Journal of Materials Research and Technology
The development of efficient and environmentally friendly solid-state refrigeration materials is a key issue in magnetic refrigeration technology. Rare-earth based high-entropy alloys with good magnetocaloric effect have been recently recognized as good ...
Shijie Wei, Hongxian Shen, Lunyong Zhang, Fuyang Cao, Jianfei Sun   +4 more
doaj   +1 more source

A Preliminary Numerical Study of Magnetic Refrigeration.

, 1990
The basic computational model is a thermodynamic cycle simulation starting with given temperature distribution in the magnetic substance (refrigerant). Temperature changes and magnetic forces are calculated for discrete material segments at a number of ...
Carpetis, C.
core  

A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns

Chemie Ingenieur Technik, EarlyView.
Batch distillation often cannot use vapor recompression due to contamination risks in food and pharma. This study proposes a design for integrating closed‐loop heat pumps using natural fluids. Results show significant energy savings, offering a sustainable alternative to traditional setups.
Philipp Dorn, Michael Libuda, Thomas Meyer, Christian Hoffmann, Jens‐Uwe Repke, Stefan Elbel   +5 more
wiley   +1 more source

Double Sided Traction Force Microscopy: A Method to Confine Cells for Physiologically Relevant Force Measurements

Cytoskeleton, EarlyView.
ABSTRACT In this paper we describe a technique to make a confined environment of variable stiffness that is suitable for high‐resolution live‐cell imaging. This versatile and adaptable technique enables cell confinement between soft elastic surfaces made from polyacrylamide gels.
Alexia Caillier, Patrick W. Oakes
wiley   +1 more source