Results 21 to 30 of about 891,439 (340)

Effect of annular ribs in heat exchanger tubes on the performance of phase‐change regenerative heat exchangers

Energy Science & Engineering, 2023
Optimizing the efficiency of conventional heat exchangers is critical for improving the performance of various processes. This study proposed increasing the heat dissipation buffer space of heat exchangers by filling the gap between the heat exchanger ...
Chuanhui Zhu, Zhehao Lin, Wei Liu, Qian Liu, Shubin Yan   +4 more
doaj   +1 more source

Photophysics, Molecular Reorientation in Solution and X-Ray Structure of a New Fluorescent Probe 1,7-Diazaperylene [PDF]

, 1993
A new fluorescent molecule 1,7-diazaperylene (DP) has been investigated by means of time-resolved and steady-state polarized fluorescence spectroscopy, as well as X-ray spectroscopy.
Barkely, Bergelson, Birks, Chuang, Dawson, Demas, Ebeid, Ehrenberg, Heinz Langhals, Herbst, Jan Karolin, Johansson, Johansson, Kalman, Kalman, Kawski, Kurt Polborn, Langhals, Langhals, Langhals, Lennart B-Å. Johansson, Löhmannsröben, Melhuish, Naumann, Nicolai von Füner, Sadrai, Segur, Shilstone, Shinitzky, Susanne Reichherzer, Weber, Zannoni, Zinsli   +32 more
core   +1 more source

A large sample study of spin relaxation and magnetometric sensitivity of paraffin-coated Cs vapor cells [PDF]

, 2009
We have manufactured more than 250 nominally identical paraffin-coated Cs vapor cells (30 mm diameter bulbs) for multi-channel atomic magnetometer applications. We describe our dedicated cell characterization apparatus.
A. Andalkar, A. Hofer, A. Weis, A. Weis, A. Weis, C. Macchione, D. Budker, D. Budker, D. Budker, E.B. Aleksandrov, E.B. Alexandrov, G. Ban, G. Bison, G. Bison, G. Bison, G. Di Domenico, G. Di Domenico, G. Di Domenico, H. Saudan, I.K. Kominis, Inc. Wolfram Research, J. Vanier, K.L. Corwin, M. Klein, N. Castagna, N.W. Ressler, P. Knowles, S. Gozzini, S. Groeger, S.F. Watanabe, T. Fernholz, W. Andrä, W.M. Itano   +32 more
core   +2 more sources

Experimental Evaluation of a Paraffin as Phase Change Material for Thermal Energy Storage in Laboratory Equipment and in a Shell-and-Tube Heat Exchanger

Applied Sciences, 2016
The thermal behavior of a commercial paraffin with a melting temperature of 58 °C is analyzed as a phase change material (PCM) candidate for industrial waste heat recovery and domestic hot water applications.
Jaume Gasia, Laia Miró, Alvaro de Gracia, Camila Barreneche, Luisa F. Cabeza   +4 more
doaj   +1 more source

Preparation and properties of biomass porous carbon composite phase change materials

工程科学学报, 2020
Presently, combining porous and high-thermal-conductivity matrices with phase change materials is widely used to improve the comprehensive properties of organic composite phase change materials.
Zhang TAO, Ling-mei WU, Ya-fei ZHANG, Zhi-meng GAO, Mu YANG   +4 more
doaj   +1 more source

Quality of DNA extracted from formalin-fixed, paraffin-embedded canine tissues. [PDF]

, 2020
Veterinary pathology tissue banks are valuable resources for genetic studies. However, limited data exist as to whether quality DNA can be extracted from these tissues for use in canine genotyping studies.
Bannasch, Danika L, Dear, Jonathan D, Sykes, Jane E   +2 more
core   +1 more source

Validation of the Gel & Wax Boluses and Comparison of their Dosimetric Performance with Virtual Bolus [PDF]

Journal of Biomedical Physics and Engineering, 2019
Background: In general, radiotherapy treatment planning is performed using the virtual bolus. It is necessary to investigate physical bolus in comparison to virtual one.
T R Verma, N K Painuly, M Tyagi, D Johny, R Gupta, M L B Bhatt   +5 more
doaj   +1 more source

Computational Approach of Charging and Discharging Phases in a Novel Compact Solar Collector with Integrated Thermal Energy Storage Tank: Study of Different Phase Change Materials

Energies, 2022
A numerical study was carried out to investigate charging and discharging processes of different phase change materials (PCMs) used for thermal storage in an innovative solar collector, targeting domestic hot water (DHW) requirements.
Maria K. Koukou, Christos Pagkalos, George Dogkas, Michail Gr. Vrachopoulos, Eleni Douvi, Yannis G. Caouris, Polykarpos Papadopoulos   +6 more
doaj   +1 more source

Oncogenic microRNAs characterization in clear cell renal cell carcinoma [PDF]

, 2015
A key challenge for the improvement of clear cell renal cell carcinoma (ccRCC) management could derive from a deeper characterization of the biology of these neoplasms that could greatly improve the diagnosis, prognosis and treatment choice. The aim of
BELLISSIMO, TERESA, CARBONE, Antonio, DELLA ROCCA, Carlo, DI CARLO, ANGELINA, FAZI, Francesco, PALLESCHI, GIOVANNI, PASTORE, ANTONIO LUIGI, PETROZZA, Vincenzo, PORTA, NATALE   +8 more
core   +2 more sources

Adding Nano-TiO₂ to Water and Paraffin to Enhance Total Efficiency of a Photovoltaic Thermal PV/T System Subjected to Harsh Weathers

Nanomaterials, 2022
Iraq is characterized by hot and sunny weather with high radiation intensity. These conditions are suitable to produce photovoltaic electricity, on the one hand, but on the other hand are not suitable for photovoltaic modules whose efficiency decreases ...
Miqdam T. Chaichan, Hussein A. Kazem, Ahmed A. Alamiery, Wan Nor Roslam Wan Isahak, Abdul Amir H. Kadhum, Mohd S. Takriff   +5 more
doaj   +1 more source