PubAg

Main content area

You searched for: Subject "heat tolerance" Remove constraint Subject: "heat tolerance"
Start Over

Search

6,794  Search Results

« Previous | 1 - 20 of 6,794 |
Number of results to display per page

Search Results

1. Boiling flow of graphene nanoplatelets nano-suspension on a small copper disk

Author:
Goodarzi, Marjan; Tlili, Iskander; Moria, Hazim; Cardoso, E.M.; Alkanhal, Tawfeeq Abdullah; Anqi, Ali E.; Safaei, Mohammad Reza
Source:
Powder technology 2021 v.377 pp. 10-19
ISSN:
0032-5910
Subject:
heat tolerance,   etc   ; boiling; copper; copper nanoparticles; fouling; graphene oxide; heat transfer; heat transfer coefficient; nanocomposites;     Show all 9 Subjects
Abstract:
... In the present work, an attempt was made to experimentally quantify the boiling heat transfer coefficient (BHTC) of graphene oxide-water nano-suspension (NS) inflow boiling heat transfer regime. The NS was prepared at weight fractions of 0.025, 0.05, and 0.1% using the two-step method and further stabilized for 17 days (at wt% = 0.1). Results showed that the presence of graphene oxide nanoplatelet ...
DOI:
10.1016/j.powtec.2020.08.083

2. Towards high integration and power density: Zigzag-type thin-film thermoelectric generator assisted by rapid pulse laser patterning technique

Author:
Yu, Yuedong; Zhu, Wei; Wang, Yaling; Zhu, Pengcheng; Peng, Kang; Deng, Yuan
Source:
Applied energy 2020 v.275 pp. 115404
ISSN:
0306-2619
Subject:
heat tolerance,   etc   ; films (materials); heat treatment; semiconductors; temperature; thermoelectric generators;     Show all 6 Subjects
Abstract:
... Cross-plane thin-film thermoelectric generator has become a new hotspot as power supply for microelectronic chips and wearable devices. Nevertheless, the poor incompatibility between thin-film thermoelectric generator with high-density thermoelectric legs and traditional semiconductor processing leads to much difficulty in performance improvement. Herein, a Zigzag-type thermoelectric leg structure ...
DOI:
10.1016/j.apenergy.2020.115404

3. An effect of suint on sheep wool impedance and heat resistance values

Author:
Cholewinska, Paulina; Michalak, Marta; Łuczycka, Deta; Czyż, Katarzyna
Source:
Journal of natural fibers 2020 v.17 no.3 pp. 382-388
ISSN:
1544-046X
Subject:
heat tolerance,   etc   ; electrical properties; sheep; sheep breeds; washing; wool;     Show all 6 Subjects
Abstract:
... The phenomenon of impedance finds an application in many areas of science; however, no studies relate to wool. Thus, the aim of the study was an examination of an effect of from the presence of suint layer on sheep wool fibers on impedance and heat resistance values. Electrical characteristics (impedance [Ω]) and heat resistance were compared in terms of wool washing effect. The impedance of wool ...
DOI:
10.1080/15440478.2018.1494078

4. Kinetic Investigation on the Cationic Polymerization of o-Phthalaldehyde: Understanding Ring-Expansion Polymerization

Author:
Engler, Anthony; Kohl, Paul A.
Source:
Macromolecules 2020 v.53 no.5 pp. 1543-1549
ISSN:
1520-5835
Subject:
heat tolerance,   etc   ; aldehydes; boron; catalysts; engineering; molecular weight; polymerization; polymers;     Show all 8 Subjects
Abstract:
... Depolymerizable polymers are of interest for engineering applications, especially when their decomposition products can be recycled back into high-value monomers. Polyphthalaldehyde and its derivatives form cyclic polymer products which can depolymerize rapidly from the solid state. To facilitate the development of these materials into technologies, the polymerization kinetics of this system was i ...
DOI:
10.1021/acs.macromol.9b02506

5. Operating characteristics of an anti-gravity loop heat pipe with a flat evaporator that has the capability of a loop thermosyphon

Author:
Watanabe, Noriyuki; Phan, Nguyen; Saito, Yuki; Hayashi, Shota; Katayama, Naoki; Nagano, Hosei
Source:
Energy conversion and management 2020 v.205 pp. 112431
ISSN:
0196-8904
Subject:
heat tolerance,   etc   ; evaporation; heat transfer; mathematical models; polytetrafluoroethylene; steel; temperature;     Show all 7 Subjects
Abstract:
... This paper deals with the operating characteristics of a loop heat pipe (LHP) under 0.52-m anti-gravity conditions at a constant heat sink temperature of 80 °C. To clarify the operating characteristics, an LHP with a flat evaporator was designed and fabricated. Two kinds of wicks with different characteristics, a steel use stainless (SUS) wick and a polytetrafluoroethylene (PTFE) wick, were used f ...
DOI:
10.1016/j.enconman.2019.112431

6. Correction to: A comparative sensitivity analysis of human thermal comfort indices with generalized additive models

Author:
Charalampopoulos, Ioannis
Source:
Theoretical and applied climatology 2019 v.137 no.1-2 pp. 1623
ISSN:
0177-798X
Subject:
heat tolerance,   etc   ; heat; humans; models;     Show all 4 Subjects
Abstract:
... The original version of this article unfortunately contained a mistake. ...
DOI:
10.1007/s00704-019-02915-8

7. The synthesis and water-swelling performances of magnetic composite microspheres with multi-shell structures via a combination method

Author:
Cao, Mengjing; Cai, Qiang; Guo, Guangfan; Yang, Jinyao; Chen, Dong
Source:
Colloids and surfaces 2020 v.602 pp. 125114
ISSN:
0927-7757
Subject:
heat tolerance,   etc   ; iron oxides; magnetism; microparticles; oils; pH; particle size distribution; polymers; silica; temperature; titanium dioxide;     Show all 11 Subjects
Abstract:
... Magnetic composite polymeric microspheres have several technical advantages in improving oil recovery applications. Swelling and stability are key properties that are a direct result of water shutoff efficacy. However, the important aspect of swelling and stability is the materials of the microspheres. In this paper, multiple–shell structures of magnetic hybrid composite spherical particles with d ...
DOI:
10.1016/j.colsurfa.2020.125114

8. Growth of polypyrrole conductive and integrated hybrids with lysozyme nanolayer and the thermal properties

Author:
Zhou, Xing; Deng, Jingrui; Wang, Dong; Fang, Changqing; Song, Renfang; Zhang, Wei; Huang, Yingwei
Source:
Composites 2020 v.137 pp. 105975
ISSN:
1359-835X
Subject:
heat tolerance,   etc   ; adhesion; ammonium persulfate; biomass; chemical structure; composite materials; lysozyme; oxidants; polymerization; pyrroles; thermal properties;     Show all 11 Subjects
Abstract:
... An assembly approach to modify polypyrrole (PPy) with oxidant and lysozyme to prepare polypyrrole@lysozyme (PPy@LZM) biomass hybrid and free-standing film is reported. The optimal parameters for preparing PPy film with best conductivity were investigated primarily. The highest conductivity of ca. 6.13 S/m can be obtained with the 30 mmol/L (9 mL) of ammonium persulfate as oxidant, and polymerizati ...
DOI:
10.1016/j.compositesa.2020.105975

9. Low interfacial thermal resistance between crossed ultra-thin carbon nanothreads

Author:
Zhan, Haifei; Zhang, Gang; Zhuang, Xiaoying; Timon, Rabczuk; Gu, Yuantong
Source:
Carbon 2020 v.165 pp. 216-224
ISSN:
0008-6223
Subject:
heat tolerance,   etc   ; carbon; carbon nanotubes; electronics; heat; packaging; polymers; thermal conductivity;     Show all 8 Subjects
Abstract:
... To ensure reliable performance and lifetime of electronics, effective and efficient heat removal is essential, which relies heavily on the high thermal conductivity of the packaging substrates and thermal interface materials (TIMs). Highly conductive fillers have been commonly applied to enhance the thermal conductivity of TIMs, while the enhancement effect has been significantly impeded by the in ...
DOI:
10.1016/j.carbon.2020.04.065

10. The role of predators in driving warming-prey diversity relationships: An invertebrate perspective

Author:
Thakur, Madhav P.
Source:
Basic and applied ecology 2020 v.47 pp. 23-34
ISSN:
1439-1791
Subject:
heat tolerance,   etc   ; biodiversity; empirical research; global warming; invertebrates; models; predation; predators; prediction; prey species; temperature;     Show all 11 Subjects
Abstract:
... Climate warming is one of the key driving forces of biodiversity loss. Yet, our understanding of underlying factors that link warming-biodiversity relationships at both local and regional spatial scales is limited. Here, I review how warming could change local-scale diversity of invertebrate animals. Specifically, I examine whether warming-prey diversity relationships are modulated by changes in p ...
DOI:
10.1016/j.baae.2020.06.001

11. Effect of pH variation and crosslinker absence on the gelling mechanism of high acyl gellan: morphological, thermal and mechanical approaches

Author:
de Souza, Flavio Silva; de Mello Ferreira, Ivana Lourenço; da Silva Costa, Marcos Antonio; da Costa, Marcia Parente Melo; da Silva, Gustavo Monteiro
Source:
Carbohydrate polymers 2020 pp. 117002
ISSN:
0144-8617
Subject:
heat tolerance,   etc   ; absorbents; brittleness; compression strength; gelation; hydrogels; mechanical testing; pH; scanning electron microscopy; thermogravimetry;     Show all 10 Subjects
Abstract:
... This article describes the preparation of superabsorbent hydrogels made of high acyl gellan without the addition of a crosslinker. Variations of the pH of the medium and different gellan solution concentrations were evaluated. The samples produced were investigated regarding their morphology by scanning electron microscopy, thermal resistance by thermogravimetry, and compressive strength by mechan ...
DOI:
10.1016/j.carbpol.2020.117002

12. High-Efficiency Boiling Heat Transfer Interfaces Composed of Electroplated Copper Nanocone Cores and Low-Thermal-Conductivity Nickel Nanocone Coverings

Author:
Wu, Feifei; Ze, Huajie; Chen, Shihan; Gao, Xuefeng
Source:
ACS applied materials & interfaces 2020 v.12 no.35 pp. 39902-39909
ISSN:
1944-8252
Subject:
heat tolerance,   etc   ; boiling; copper; copper nanoparticles; electroplating; energy; heat transfer; heat transfer coefficient; liquids; nickel; wettability;     Show all 11 Subjects
Abstract:
... We demonstrate that copper-based super-thin high-efficiency boiling heat transfer (BHT) interfaces can be obtained via electroplating hierarchical nickel nanocone coverings on the surface of copper nanocone cores. By regulating surface morphologies, wettability, and mass and heat transfer properties of hierarchical structures, we reveal the regulation rules of their performance. Based on this, we ...
DOI:
10.1021/acsami.0c10761

13. Highly thermally conductive polypropylene/graphene composites for thermal management

Author:
Song, Na; Cao, Donglei; Luo, Xian; Wang, Qi; Ding, Peng; Shi, Liyi
Source:
Composites 2020 v.135 pp. 105912
ISSN:
1359-835X
Subject:
heat tolerance,   etc   ; composite materials; durability; electronic equipment; graphene; heat transfer; hydrogen bonding; mussels; polypropylenes; thermal conductivity;     Show all 10 Subjects
Abstract:
... As an indispensable part of electronic devices, efficient thermal management materials can promote heat dissipation of electronic products quickly, thereby greatly improving their reliability, stability and service life. Here, a simple “in-situ building” approach was developed to fabricate highly thermally conductive polypropylene (PP)/graphene composites with three-dimensional graphene framework. ...
DOI:
10.1016/j.compositesa.2020.105912

14. A coupled electrical-thermal impedance matching model for design optimization of thermoelectric generator

Author:
He, Zhi-Zhu
Source:
Applied energy 2020 v.269 pp. 115037
ISSN:
0306-2619
Subject:
heat tolerance,   etc   ; geometry; heat; models; prediction; system optimization; thermoelectric generators; working conditions;     Show all 8 Subjects
Abstract:
... Based on the definition of numerical-type equivalent thermoelectric parameters through developing a 1D self-consistent numerical method, this paper established a novel coupled electrical-thermal impedance matching (CETIM) model for prediction of the maximum output power and the highest conversion efficiency of thermoelectric generator (TEG). CETIM model could highlight the impacts of thermal worki ...
DOI:
10.1016/j.apenergy.2020.115037

15. Critical thermal maxima of two species of intertidal crabs, Scylla olivacea and Thalamita crenata at different acclimation temperatures

Author:
Azra, Mohamad N.; Mohamad, Aslah; Hidir, Ariffin; Taufik, Muhammad; Abol-Munafi, Ambok Bolong; Ikhwanuddin, Mhd
Source:
Aquaculture reports 2020 v.17 pp. 100301
ISSN:
2352-5134
Subject:
heat tolerance,   etc   ; Scylla olivacea; acclimation; ambient temperature; aquaculture; crabs; littoral zone;     Show all 7 Subjects
Abstract:
... Understanding the thermal tolerance of both candidate and potential aquaculture species is important for determining their temperature limit at certain stages of culture. The aim of the present work was to determine the effect of acclimation at different temperatures on the Critical Thermal Maxima (CTMax) and escaping temperature (Tesc) and Acclimation Response Ratio (ARR) of the mud crab, Scylla ...
DOI:
10.1016/j.aqrep.2020.100301

16. Immobilization of pectinase on polyethyleneimine based support via spontaneous amino-yne click reaction

Author:
Oktay, Burcu; Demir, Serap; Kayaman-Apohan, Nilhan
Source:
Food and bioproducts processing 2020 v.122 pp. 159-168
ISSN:
0960-3085
Subject:
heat tolerance,   etc   ; alkynes; apple juice; catalysts; catalytic activity; cryogels; immobilized enzymes; pH; polyethyleneimine; polygalacturonase;     Show all 10 Subjects
Abstract:
... The immobilization of an enzyme can improve catalytic activity, stability, and reusability of its. In this study, we investigated a new method for enzyme immobilization. Alkyne-pectinase was first immobilized on the polyethyleneimine-based cryogel via a spontaneous amino-yne click reaction under very mild conditions and then the apple juice was clarified. Amino-yne click reactions do not need any ...
DOI:
10.1016/j.fbp.2020.04.010

17. A prediction model of surface heat transfer coefficient in insulating packaging with phase change materials

Author:
Pan, Liao; Chen, Xi; Lu, Lixin; Wang, Jun; Qiu, Xiaolin
Source:
Food packaging and shelf life 2020 v.24 pp. 100474
ISSN:
2214-2894
Subject:
heat tolerance,   etc   ; engineering; food packaging; heat transfer coefficient; ice; melting; shelf life; temperature; thermal conductivity;     Show all 9 Subjects
Abstract:
... Surface heat transfer coefficient is one of the crucial parameters for determining the system thermal resistance of insulating packaging. However, the surface heat transfer coefficient which couples with the temperature field in insulating packaging is difficult to experimentally measure and independently calculate. In this study an iterative method based on a semi-infinite phase change model was ...
DOI:
10.1016/j.fpsl.2020.100474

18. Development of an efficient numerical model and analysis of heat transfer performance for borehole heat exchanger

Author:
Yu, Xiaohui; Li, Hongwei; Yao, Sheng; Nielsen, Vilhjalmur; Heller, Alfred
Source:
Renewable energy 2020 v.152 pp. 189-197
ISSN:
0960-1481
Subject:
heat tolerance,   etc   ; heat exchangers; heat pumps; heat transfer; mathematical models; renewable energy sources; temperature; Denmark;     Show all 8 Subjects
Abstract:
... Knowledge of borehole heat exchanger efficiency is necessary to optimize the design and performance of ground source heat pump systems. To evaluate the heat transfer performance of the wildly-used vertical U-pipe BHE, a novel one-dimensional numerical model was developed to assess the thermal transfer performance of the BHE from short-term (thermal response test) to long-term (a heating period) fo ...
DOI:
10.1016/j.renene.2020.01.044

19. Relationship between carbon segregation and the carbide precipitation along grain boundary based on the structural unit model

Author:
Cao, Tieshan; Cheng, Congqian; Ye, Fei; Xv, Hongbo; Zhao, Jie
Source:
Journal of materials science 2020 v.55 no.18 pp. 7883-7893
ISSN:
0022-2461
Subject:
heat tolerance,   etc   ; X-ray diffraction; carbides; carbon; cold; deformation; heat treatment; models; molecular dynamics; steel;     Show all 10 Subjects
Abstract:
... Intragranular embrittlement is key to the weakening of properties of ultra-supercritical applied materials as HR3C heat-resistant steel in service and is considered to be related to the structure of grain boundary and the precipitation of carbides. In this work, the structural unit model was applied to study the structure of grain boundary and carbide formation with molecular dynamics simulation, ...
DOI:
10.1007/s10853-020-04537-2

20. Study on thermal degradation mechanism of heat-resistant epoxy resin modified with carboranes

Author:
Cui, Meili; Zhang, Lili; Lou, Pingping; Zhang, Xuezhong; Han, Xiaojie; Zhang, Zhijie; Zhu, Shuhua
Source:
Polymer degradation and stability 2020 v.176 pp. 109143
ISSN:
0141-3910
Subject:
heat tolerance,   etc   ; adhesives; epoxides; oxidation; oxidative stability; shear strength; temperature; thermal degradation; thermal stability;     Show all 9 Subjects
Abstract:
... To generate a novel heat-resistant phenolic epoxy resin, carborane containing curing agent (1,7-bis(aminophenylene)meta-carborane) was synthesized and applied to cure the resin. The generated carborane-containing phenolic epoxy resin showed better thermal stability and thermal oxidative stability than carborane free phenolic epoxy resin. And the Lap Shear Strength of bonding samples showed the imp ...
DOI:
10.1016/j.polymdegradstab.2020.109143