Conecte-se

Bibliografias temáticas / Elevated temperature / Artigos de revistas

Siga este link para ver outros tipos de publicações sobre o tema: Elevated temperature.

Artigos de revistas sobre o tema "Elevated temperature"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 11 de março de 2023

Crie uma referência precisa em APA, MLA, Chicago, Harvard, e outros estilos

Selecione um tipo de fonte:

Veja os 50 melhores artigos de revistas para estudos sobre o assunto "Elevated temperature".

Ao lado de cada fonte na lista de referências, há um botão "Adicionar à bibliografia". Clique e geraremos automaticamente a citação bibliográfica do trabalho escolhido no estilo de citação de que você precisa: APA, MLA, Harvard, Chicago, Vancouver, etc.

Você também pode baixar o texto completo da publicação científica em formato .pdf e ler o resumo do trabalho online se estiver presente nos metadados.

Veja os artigos de revistas das mais diversas áreas científicas e compile uma bibliografia correta.

1

Hofmeister, Anne M., e Maik Pertermann. "Thermal diffusivity of clinopyroxenes at elevated temperature". European Journal of Mineralogy 20, n.º 4 (29 de agosto de 2008): 537–49. http://dx.doi.org/10.1127/0935-1221/2008/0020-1814.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

2

sinha, Dr Deepa A. "Flexural Behavior of TBsFrc subjected to sustained Elevated Temperature". Indian Journal of Applied Research 4, n.º 7 (1 de outubro de 2011): 221–25. http://dx.doi.org/10.15373/2249555x/july2014/68.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

3

Rajaram, M., S. Kandasamy, A. Ravichandran e A. Muthadhi. "Effect of Polystyrene Waste on Concrete at Elevated Temperature". Indian Journal Of Science And Technology 15, n.º 38 (15 de outubro de 2022): 1912–22. http://dx.doi.org/10.17485/ijst/v15i38.225.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

4

Wheeler, J. M., P. Brodard e J. Michler. "Elevated temperature,in situindentation with calibrated contact temperatures". Philosophical Magazine 92, n.º 25-27 (setembro de 2012): 3128–41. http://dx.doi.org/10.1080/14786435.2012.674647.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

5

Hancox, N. L. "Elevated temperature polymer composites". Materials & Design 12, n.º 6 (dezembro de 1991): 317–21. http://dx.doi.org/10.1016/0261-3069(91)90072-c.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

6

Le, Quang X., Vinh TN Dao, Jose L. Torero, Cristian Maluk e Luke Bisby. "Effects of temperature and temperature gradient on concrete performance at elevated temperatures". Advances in Structural Engineering 21, n.º 8 (8 de dezembro de 2017): 1223–33. http://dx.doi.org/10.1177/1369433217746347.

Texto completo da fonte

Resumo:

To assure adequate fire performance of concrete structures, appropriate knowledge of and models for performance of concrete at elevated temperatures are crucial yet currently lacking, prompting further research. This article first highlights the limitations of inconsistent thermal boundary conditions in conventional fire testing and of using constitutive models developed based on empirical data obtained through testing concrete under minimised temperature gradients in modelling of concrete structures with significant temperature gradients. On that basis, this article outlines key features of a new test setup using radiant panels to ensure well-defined and reproducible thermal and mechanical loadings on concrete specimens. The good repeatability, consistency and uniformity of the thermal boundary conditions are demonstrated using measurements of heat flux and in-depth temperature of test specimens. The initial collected data appear to indicate that the compressive strength and failure mode of test specimens are influenced by both temperature and temperature gradient. More research is thus required to further quantify such effect and also to effectively account for it in rational performance-based fire design and analysis of concrete structures. The new test setup reported in this article, which enables reliable thermal/mechanical loadings and deformation capturing of concrete surface at elevated temperatures using digital image correlation, would be highly beneficial for such further research.

Estilos ABNT, Harvard, Vancouver, APA, etc.

7

Choi, S. R., e J. P. Gyekenyesi. "Elevated-Temperature “Ultra” Fast Fracture Strength of Advanced Ceramics: An Approach to Elevated-Temperature “Inert” Strength". Journal of Engineering for Gas Turbines and Power 121, n.º 1 (1 de janeiro de 1999): 18–24. http://dx.doi.org/10.1115/1.2816306.

Texto completo da fonte

Resumo:

The determination of “ultra” fast fracture strengths of five silicon nitride ceramics at elevated temperatures has been made by using constant stress-rate (“dynamic fatigue”) testing with a series of “ultra” fast test rates. The test materials included four monolithic and one SiC whisker-reinforced composite silicon nitrides. Of the five test materials, four silicon nitrides exhibited the elevated-temperature strengths that approached their respective room-temperature strengths at an “ultra” fast test rate of 3.3 × 104 MPa/s. This implies that slow crack growth responsible for elevated-temperature failure can be eliminated or minimized by using the “ultra” fast test rate. These ongoing experimental results have shed light on laying a theoretical and practical foundation on the concept and definition of elevated-temperature “inert” strength behavior of advanced ceramics.

Estilos ABNT, Harvard, Vancouver, APA, etc.

8

Wang, X. W., M. Zhao, Z. J. Mao, S. Y. Zhu, D. L. Zhang e X. Z. Zhao. "Combination of elevated CO2 concentration and elevated temperature and elevated temperature only promote photosynthesis of Quercus mongolica seedlings". Russian Journal of Plant Physiology 55, n.º 1 (janeiro de 2008): 54–58. http://dx.doi.org/10.1134/s1021443708010068.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

9

ISAAC, JOHNEY, SHEENU THOMAS e J. PHILIP. "General-purpose high performance temperature controller for elevated temperatures". International Journal of Electronics 74, n.º 6 (junho de 1993): 979–82. http://dx.doi.org/10.1080/00207219308925900.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

10

Daniels, Katherine, Jon Harrington, Stephanie Zihms e Andrew Wiseall. "Bentonite Permeability at Elevated Temperature". Geosciences 7, n.º 1 (11 de janeiro de 2017): 3. http://dx.doi.org/10.3390/geosciences7010003.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

11

McLay, A., e J. Verkooijen. "Ultrasonic inspections at elevated temperature". Insight - Non-Destructive Testing and Condition Monitoring 54, n.º 6 (1 de junho de 2012): 307–10. http://dx.doi.org/10.1784/insi.2012.54.6.307.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

12

Da Silva, Vasco F., Gjisbert P. Raaphorst, Ravi Goyal e Mark Feeley. "Drug cytotoxicity at elevated temperature". Journal of Neurosurgery 67, n.º 6 (dezembro de 1987): 885–88. http://dx.doi.org/10.3171/jns.1987.67.6.0885.

Texto completo da fonte

Resumo:

✓ The malignant glioma cell line U-87MG was used for 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU), aziridinylbenzoquinone (AZQ), cis-diaminodichloroplatinum (II) (cis-DDP), and spirohydantoin mustard (SHM) treatments at 37° and 42°C. With the exception of SHM, all drugs killed a greater proportion of cells at the higher temperature, as assessed by the colony-formation assay. Drug-dose enhancement ratios were 1.6, 2.8, 2, and 1:1 for BCNU, AZQ, cis-DDP, and SHM, respectively. Because methods to heat discrete volumes of brain are now available, we conclude that hyperthermic increase of BCNU, AZQ, and cis-DDP cytotoxicity might have therapeutic application for malignant gliomas.

Estilos ABNT, Harvard, Vancouver, APA, etc.

13

Millington, S., e S. J. Shaw. "Adhesives for Elevated-Temperature Applications". MRS Bulletin 28, n.º 6 (junho de 2003): 428–33. http://dx.doi.org/10.1557/mrs2003.123.

Texto completo da fonte

Resumo:

AbstractAlthough adhesives, particularly those based on epoxy resins, are finding increasing use in structural applications, their utilization at elevated temperature (>150°C) has been limited by their relatively poor thermal and thermo-oxidative stability. As a result, significant effort has been directed in recent years toward the development of polymers exhibiting increased thermal resistance. Although a wealth of research conducted over several decades has resulted in a myriad of polymer types exhibiting, in some cases, impressive high-temperature performance, many systems have demonstrated poor processability Thus, much emphasis has been placed on developing high-temperature performance while providing processability characteristics that are similar, if not identical, to epoxies. This article considers the various approaches that have been shown to offer such dual capabilities. In addition, the results of various studies undertaken to investigate the effects of elevated temperature on the strength and fatigue resistance of bonded joints are reported.

Estilos ABNT, Harvard, Vancouver, APA, etc.

14

Schulz, Mark J., Mannur J. Sundaresan, Jason Mcmichael, David Clayton, Robert Sadler e Bill Nagel. "Piezoelectric Materials at Elevated Temperature". Journal of Intelligent Material Systems and Structures 14, n.º 11 (novembro de 2003): 693–705. http://dx.doi.org/10.1177/1045389x03038577.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

15

Smith, J. R., P. L. Zanonato e G. R. Choppin. "An elevated-temperature titration calorimeter". Journal of Chemical Thermodynamics 24, n.º 1 (janeiro de 1992): 99–106. http://dx.doi.org/10.1016/s0021-9614(05)80260-5.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

16

van den Bosch, Edith, e Constant Gielens. "Gelatin degradation at elevated temperature". International Journal of Biological Macromolecules 32, n.º 3-5 (setembro de 2003): 129–38. http://dx.doi.org/10.1016/s0141-8130(03)00046-1.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

17

Chan, K. S., e G. R. Leverant. "Elevated-temperature fatigue crack growth". Metallurgical and Materials Transactions A 18, n.º 4 (abril de 1987): 593–602. http://dx.doi.org/10.1007/bf02649475.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

18

Tien, J. K., G. E. Vignoul e M. W. Kopp. "Materials for elevated-temperature applications". Materials Science and Engineering: A 143, n.º 1-2 (setembro de 1991): 43–49. http://dx.doi.org/10.1016/0921-5093(91)90724-2.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

19

Levy, Alan V., Johnny Yan e Jennifer Patterson. "Elevated temperature erosion of steels". Wear 108, n.º 1 (março de 1986): 43–60. http://dx.doi.org/10.1016/0043-1648(86)90087-6.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

20

Carter, G., MJ Nobes e RG Elliman. "Amorphisation during elevated temperature implantation". Vacuum 45, n.º 12 (dezembro de 1994): 1197–203. http://dx.doi.org/10.1016/0042-207x(94)90081-7.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

21

Dodiuk, H., S. Kenig e I. Liran. "Low temperature curing epoxies for elevated temperature composites". Composites 22, n.º 4 (julho de 1991): 319–27. http://dx.doi.org/10.1016/0010-4361(91)90008-5.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

22

Iwamoto, T., Norio Kawagoishi, Nu Yan, Eiji Kondo e Kazuhiro Morino. "Fatigue Strength of Maraging Steel at Elevated Temperatures". Key Engineering Materials 385-387 (julho de 2008): 161–64. http://dx.doi.org/10.4028/www.scientific.net/kem.385-387.161.

Texto completo da fonte

Resumo:

Rotating bending fatigue tests were carried out to investigate the effects of temperature on the fatigue strength and the fracture mechanism of an 18 % Ni maraging steel at room and elevated temperatures of 473K and 673K. Fatigue strength was higher at elevated temperatures than at room temperature, though static strength was decreased by softening at elevated temperature. There was no effect of temperature on crack morphology and fracture mechanism. On the other hand, during fatigue process at elevated temperature, the specimen was age-hardened and the specimen surface was oxide. That is, the increase in fatigue strength at elevated temperature was mainly caused by the increase in hardness due to age-hardening and suppression of a crack initiation due to surface oxidation.

Estilos ABNT, Harvard, Vancouver, APA, etc.

23

Mori, Kiyomi, Muhd Azimin, Masashi Tanaka e Takashi Ikeda. "OS16-5-7 Strength Properties of Adhesive Metal Joints at Elevated Temperature". Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2007.6 (2007): _OS16–5–7——_OS16–5–7—. http://dx.doi.org/10.1299/jsmeatem.2007.6._os16-5-7-.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

24

Miyazawa, Yuta, Yuichi Otsuka, Yoshiharu Mutoh e Kohsoku Nagata. "OS12-4-4 Fatigue Crack Growth Characteristics of Epoxy Resin Reinforced by Silica Particles at Ambient Temperature and Elevated Temperatures". Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2011.10 (2011): _OS12–4–4—. http://dx.doi.org/10.1299/jsmeatem.2011.10._os12-4-4-.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

25

Gambo, S., K. Ibrahim, A. Aliyu, A. G. Ibrahim e H. Abdulsalam. "Performance of metakaolin based geopolymer concrete at elevated temperature". Nigerian Journal of Technology 39, n.º 3 (16 de setembro de 2020): 732–37. http://dx.doi.org/10.4314/njt.v39i3.11.

Texto completo da fonte

Resumo:

Due to the carbon dioxide emission arising from the production of cement, alternative concrete that is environmentally friendly such as metakaolin geopolymer concrete have been developed. However, the performance of metakaolin based geopolymer concrete (MKGC) when exposed to aggressive environment particularly elevated temperature has not been investigated. Therefore, this paper assessed the performance of MKGC exposed to elevated temperatures. MKGC cube specimens of grade 25 were produced using a mix ratio of 1:1.58:3.71.After preparing the specimens, they were placed in an electric oven at a temperature of 60oC for 24 hours. Thereafter, the specimens were stored in the laboratory at ambient temperature for 28 days. The specimens were then exposed to elevated temperatures of 200, 400, 600 and 800oC. After exposure to elevated temperatures, the MKGC specimens were subjected to compressive strength, water absorption and abrasion resistance tests. Results show that at 600 and 800oC, the MKGC lost a compressive strength of 59.69% and 71.71% respectively. Higher water absorption and lower abrasion resistance were also observed. Keywords: Cement, Compressive Strength, Metakaolin Concrete, Elevated Temperature.

Estilos ABNT, Harvard, Vancouver, APA, etc.

26

Kuo, Ming Feng, e Shin Jie Li. "Recycled Concrete at Elevated High Temperature Duration". Applied Mechanics and Materials 368-370 (agosto de 2013): 1099–102. http://dx.doi.org/10.4028/www.scientific.net/amm.368-370.1099.

Texto completo da fonte

Resumo:

Recycled concrete is the concrete mixed with crush aggregate recycled by waste concrete. This study investigates the effect of long term duration at high temperature on the mechanical properties and behavior of recycled concrete. The result shows that recycled concrete shrank after heating to temperatures below 500°C. Because the silicate aggregates expand over 573°C, recycled concrete expanded at 750°C. Recycled concrete contained the more recycled aggregates, the less expanded. The mechanical behavior of recycled concrete was worse than conventional concrete at treatments below 500°C. However, over 500oC, the resistivity of recycled concrete from construction sites, which contains some red brick, was better than conventional concrete. The property difference tends to decrease with elevated temperature.

Estilos ABNT, Harvard, Vancouver, APA, etc.

27

Fecht, S., T. Vallée, T. Tannert e H. Fricke. "Adhesively Bonded Hardwood Joints under Room Temperature and Elevated Temperatures". Journal of Adhesion 90, n.º 5-6 (10 de março de 2014): 401–19. http://dx.doi.org/10.1080/00218464.2013.836968.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

28

Vandenabeele, Peter. "Temperature measurement during implantation at elevated temperatures (300–500 °C)". Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures 9, n.º 6 (novembro de 1991): 2784. http://dx.doi.org/10.1116/1.585644.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

29

Schembre, J. M., e A. R. Kovscek. "Mechanism of Formation Damage at Elevated Temperature". Journal of Energy Resources Technology 127, n.º 3 (16 de março de 2005): 171–80. http://dx.doi.org/10.1115/1.1924398.

Texto completo da fonte

Resumo:

The pore and grain surface of reservoir rocks often has clay and other fine material attached onto pore walls. It has been long recognized that brine salinity and pH are key factors affecting the attractive forces between pore surfaces and fines. If mobilized particles are assembled in sufficient quantities, they obstruct pore throats and reduce the permeability of the formation. There is anecdotal evidence of substantial fines migration during steam injection enhanced oil recovery operations. As of yet, the mechanism of fines release with temperature is unexplained. The Derjaguin, Landau, Verwey, and Overbeek theory of colloidal stability is used in conjunction with laboratory, core-scale experiments to demonstrate that high temperature, alkaline pH, and low salinity (typical characteristics of steam condensate) are sufficient to induce fines mobilization. Temperature is a key variable in calculations of fines stability. Hot-water floods are performed in Berea sandstone at temperatures ranging from 20°C to 200°C. Permeability reduction is observed with temperature increase and fines mobilization occurs repeatably at a particular temperature that varies with solution pH and ionic strength. A scanning electron microscope is used to analyze composition of the effluent samples collected during experiments. It confirms the production of fine clay material. On the practical side, this study provides design criteria for steam injection operations so as to control fines production.

Estilos ABNT, Harvard, Vancouver, APA, etc.

30

Olszyk, D., Claudia Wise, Erica VanEss e David Tingey. "Elevated temperature but not elevated CO2 affects long-term patterns of stem diameter and height of Douglas-fir seedlings". Canadian Journal of Forest Research 28, n.º 7 (1 de julho de 1998): 1046–54. http://dx.doi.org/10.1139/x98-114.

Texto completo da fonte

Resumo:

Global climatic change may impact forest productivity, but data are lacking on potential effects of elevated CO2 and temperature on tree growth. We determined changes in shoot growth for Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings exposed to ambient or elevated CO2 ( µmol·mol-1), and ambient or elevated temperature . Seedings were grown for 4 years (three complete growing seasons) in outdoor, sunlit chambers. In each season, height growth was initiated earlier and, in two seasons, ceased earlier for elevated compared with ambient temperature trees. Elevated temperature reduced intermediate and final plant heights. Stem diameter growth began earlier each season at the elevated compared with the ambient temperature, but temperature had no affect on final stem diameter. Elevated temperature tended to reduce leaf (p = 0.07) but not woody biomass. Elevated CO2 had no significant effects on stem diameter, height, and leaf or woody biomass, and there were no significant CO2 × temperature interactions. Thus, elevated temperatures (but not elevated CO2) associated with climate change may decrease seedling canopy growth as indicated by reduced height and leaf biomass but have little or no effect on overall woody growth as indicated by stem diameter and woody biomass.

Estilos ABNT, Harvard, Vancouver, APA, etc.

31

Akita, Masayuki, Masaki Nakajima, Yoshihiko Uematsu e Keiro Tokaji. "Fatigue Behaviour of Type 444 Stainless Steel at Elevated Temperatures". Key Engineering Materials 345-346 (agosto de 2007): 263–66. http://dx.doi.org/10.4028/www.scientific.net/kem.345-346.263.

Texto completo da fonte

Resumo:

This paper describes the fatigue behaviour at elevated temperatures in a ferritic stainless steel, type 444. Test temperatures evaluated were ambient temperature, 673K and 773K in laboratory air. Fatigue strength decreased at elevated temperatures compared with at ambient temperature. At all temperatures, cracks were generated at the specimen surface due to cyclic slip deformation, but fractographic analysis revealed a brittle features in fracture surface near the crack initiation site at elevated temperatures. Cracks initiated earlier at elevated temperatures than at ambient temperature and subsequent small cracks grew faster at elevated temperatures even though the difference in elastic modulus was taken into account, indicating the decrease in crack initiation resistance and crack growth resistance. The observed decrease in both resistances was discussed in relation to the 748K(475C) embrittlement in ferritic stainless steels.

Estilos ABNT, Harvard, Vancouver, APA, etc.

32

Vuong, Gia Hai, Nguyen Thi Hong Minh e Nguyen Duc Toan. "Mechanical Properties of SS400 Steel Plate at Elevated Temperatures". Applied Mechanics and Materials 889 (março de 2019): 51–57. http://dx.doi.org/10.4028/www.scientific.net/amm.889.51.

Texto completo da fonte

Resumo:

This paper presents the experimental test results on mechanical properties of steel plate grade SS400 at elevated temperatures. The steel is often used as structural steel due to its weldability and machinability. The steel plates were heated by a high frequency heating system to reach specific temperatures before being tested on a tensile testing machine. Five different temperature conditions were used, namely room temperature, 100°C, 300°C, 500°C and 600°C. The data of mechanical properties measured for SS400 steel plates at various temperature conditions were recorded and analysed. The research showed that when the temperature is increased, the force in tensile test is decreased while the strain is increased. The observation and the data were then used to setup the stress – strain – temperature relation for formability study of SS400 steel plates. The same method can be used to establish the mechanical properties at elevated temperatures.

Estilos ABNT, Harvard, Vancouver, APA, etc.

33

Goremikins, Vadims, Lukas Blesak, Josef Novak e Frantisek Wald. "Experimental investigation on SFRC behaviour under elevated temperature". Journal of Structural Fire Engineering 8, n.º 3 (11 de setembro de 2017): 287–99. http://dx.doi.org/10.1108/jsfe-05-2017-0034.

Texto completo da fonte

Resumo:

Purpose This work aims to present an experimental study of steel fibre-reinforced concrete (SFRC) subjected to high temperature, especially focusing on residual behaviour. Design/methodology/approach Compressive strength and split tensile strength of SFRC cubes and ultimate bending strength of prisms were evaluated under ambient and elevated temperatures. The specimens were heated by ceramic heaters and then repacked for testing. Findings The results showed that a compressive strength of SFRC is reduced by 38 and 66 per cent, tensile strength is reduced by 25 and 59 per cent and ultimate bending force is reduced by 33 and 56 per cent in case of 400°C and 600°C, respectively, comparing with ambient temperature. Originality value The developed testing procedure could be used for determination of material properties of SFRC under elevated temperatures.

Estilos ABNT, Harvard, Vancouver, APA, etc.

34

Choi, Hyun Ki, e Chang Sik Choi. "Temperature Estimation Method of Hollow Slab at Elevated Temperature". Journal of Korean Society of Hazard Mitigation 15, n.º 1 (28 de fevereiro de 2015): 17–22. http://dx.doi.org/10.9798/kosham.2015.15.1.17.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

35

Dodiuk, H., S. Kenig e I. Liran. "Room Temperature Curing Epoxy Adhesives for Elevated Temperature Service". Journal of Adhesion 22, n.º 3 (julho de 1987): 227–51. http://dx.doi.org/10.1080/00218468708071245.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

36

Dodiuk, H., e S. Kenig. "Room-temperature curing epoxies and their elevated-temperature properties". Makromolekulare Chemie. Macromolecular Symposia 53, n.º 1 (janeiro de 1992): 105–24. http://dx.doi.org/10.1002/masy.19920530112.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

37

Barbhuiya, Salim, Tommy Lo, Shazim Memon e Hamid Nikraz. "Strength Recovery of Lightweight Concrete under Elevated Temperature". Advanced Materials Research 905 (abril de 2014): 300–305. http://dx.doi.org/10.4028/www.scientific.net/amr.905.300.

Texto completo da fonte

Resumo:

This research is aimed at investigating the effect of elevated temperature, curing duration and curing methods on the strength recovery of lightweight concrete. Concrete specimens were subjected to elevated temperatures ranging from 300 to 600°C in a controlled heating environment. The specimens were subjected to three types of curing conditions: continuous water curing at 27°C, curing in a relative humidity of 95% at 27°C and curing in water at 60°C for three days and then curing in water at 27°C. The curing duration ranged from 7 to 56 days. The results indicated that the re-curing of concrete for the recovery of compressive strength is most effective in the temperature range from 300 to 500°C. For temperatures outside the range of 300 to 500°C, re-curing was either not effective or had limited application.

Estilos ABNT, Harvard, Vancouver, APA, etc.

38

Hakala, Kaija, Timo Mela, Heikki Laurila e Timo Kaukoranta. "Arrangement of experiments for simulating the effects of elevated temperatures and elevated CO2 levels on field-sown crops in Finland". Agricultural and Food Science 5, n.º 1 (1 de janeiro de 1996): 25–47. http://dx.doi.org/10.23986/afsci.72728.

Texto completo da fonte

Resumo:

The experimental plants: spring wheat, winterwheat, spring barley, meadow fescue, potato, strawberry and black currant were sown or planted directly in the field, part of which was covered by an automatically controlled greenhouse to elevate the temperature by 3°C. The temperature of the other part of the field (open field) was not elevated, but the field was covered with the same plastic film as the greenhouse to achieve radiation and rainfall conditions comparable to those in the greenhouse. To elevate the CO2 concentrations, four open top chambers (OTC) were built for the greenhouse, and four for the open field. Two of these, both in the greenhouse and in the open field, were supplied with pure CO2 to elevate their CO2 level to 700 ppm. The temperatures inside the greenhouse followed accurately the desired level. The relative humidity was somewhat higher in the greenhouse and in the OTC:s than in the open field, especially after the modifications in the ventilation of the greenhouse and in the OTC:s in 1994. Because the OTC:s were large (3 m in diameter), the temperatures inside them differed very little from the surrounding air temperature. The short-term variation in the CO2 concentrations in the OTC:s with elevated CO2 was, however, quite high. The control of the CO2 concentrations improved each year from 1992 to 1994, as the CO2 supplying system was modified. The effects of the experimental conditions on plant growth and phenology are discussed.

Estilos ABNT, Harvard, Vancouver, APA, etc.

39

Mosallam, Ayman S. "Structural Performance of Pultruded Composites under Elevated Temperatures". Advanced Materials Research 79-82 (agosto de 2009): 2223–26. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.2223.

Texto completo da fonte

Resumo:

One of the major limitations for wider use of pultruded fiber reinforced polymeric (PFRP) composites in the civil engineering sector has been their behavior under elevated temperature and ultimately fire. This limitation arises not only due to the reduction in mechanical properties at high temperatures, including increased propensity to creep, but also due to limitations on the continuous working temperature causing permanent damage to the material as a result of thermal and oxidative degradation. Significant gains in property retention at high temperatures with crystalline polymers have been derived from the incorporation of fibrous reinforcement, but the development of new polymer matrices is the key for further elevation of the useful temperature range. This paper presents summary results of a research project focused on characterizing the viscoelastic behavior of commercially-produced, off-the-shelf unidirectional PFRP materials subjected to elevated temperature environments.

Estilos ABNT, Harvard, Vancouver, APA, etc.

40

Sujatha, K. B., D. C. Uprety, D. Nageswara Rao, P. Raghuveer Rao e N. Dwivedi. "Up-regulation of sucrose-P synthase in rice under elevated carbon dioxide and temperature conditions". Plant, Soil and Environment 54, No. 4 (11 de abril de 2008): 155–62. http://dx.doi.org/10.17221/388-pse.

Texto completo da fonte

Resumo:

Basmati rice (<I>Oryza sativa</I> L.) cultivars viz. PRH-10 (pusa rice hybrid-10) and PS-2 (Pusa Sugandh-2) were grown under two different day/night temperatures (31/24°C, 35/28°C) at ambient (370 μmol/mol) and elevated (550 μmol/mol) carbon dioxide (CO<sub>2</sub>) concentration, respectively, to characterize how an increase in CO<sub>2</sub> and temperature affects rice photosynthesis and carbohydrate metabolism. At elevated CO<sub>2</sub>, the photosynthetic rates increased under both the temperature regimes, compared with plants grown at ambient CO<sub>2</sub>. The photosynthetic rate, sucrose-P synthase (SPS) activity and accumulation of soluble sugars and starch were higher in PRH-10 (pusa rice hybrid-10), compared to PS-2 (Pusa Sugandh-2). Elevated temperature decreased the photosynthetic rates both under ambient and elevated CO<sub>2</sub> conditions. The SPS (sucrose-P synthase) activity and the accumulation of soluble sugars and starch were enhanced at elevated CO<sub>2</sub> under both temperature regimes compared with plants grown at ambient CO<sub>2</sub>. The up-regulation of SPS (sucrose-P synthase) under elevated CO<sub>2</sub> and temperature would be beneficial for growth and productivity of rice plants for the future climatic conditions.

Estilos ABNT, Harvard, Vancouver, APA, etc.

41

HASEGAWA, Yoshio, Shinsaku HANASAKI e Masayuki HASHIMURA. "Cutting of GFRP at elevated temperature." Journal of the Japan Society for Precision Engineering 54, n.º 3 (1988): 594–99. http://dx.doi.org/10.2493/jjspe.54.594.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

42

Lakshmanan, Balasubramanian, Wayne Huang, David Olmeijer e John W. Weidner. "Polyetheretherketone Membranes for Elevated Temperature PEMFCs". Electrochemical and Solid-State Letters 6, n.º 12 (2003): A282. http://dx.doi.org/10.1149/1.1619647.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

43

Miller, Diane B., e James P. O’Callaghan. "Elevated environmental temperature and methamphetamine neurotoxicity". Environmental Research 92, n.º 1 (maio de 2003): 48–53. http://dx.doi.org/10.1016/s0013-9351(02)00051-8.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

44

De Leon, N., B. Wang, C. Weinberger e G. Thompson. "Elevated Temperature Deformation Mechanisms in Ta2C". Microscopy and Microanalysis 17, S2 (julho de 2011): 1898–99. http://dx.doi.org/10.1017/s1431927611010361.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

45

Venkatesh, Vasisht, e H. J. Rack. "Elevated temperature hardening of INCONEL 690". Mechanics of Materials 30, n.º 1 (setembro de 1998): 69–81. http://dx.doi.org/10.1016/s0167-6636(98)00020-9.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

46

Greenwald, Michael H., e David H. Dorfman. "Life-threatening illness with elevated temperature". Clinical Pediatric Emergency Medicine 1, n.º 2 (março de 2000): 150–56. http://dx.doi.org/10.1016/s1522-8401(00)90020-x.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

47

Blau, Peter J. "Elevated-temperature tribology of metallic materials". Tribology International 43, n.º 7 (julho de 2010): 1203–8. http://dx.doi.org/10.1016/j.triboint.2010.01.003.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

48

Strejček, Michal, František Wald e Zdeněk Sokol. "Column Web Panel at Elevated Temperature". Fire Technology 46, n.º 1 (25 de março de 2009): 37–47. http://dx.doi.org/10.1007/s10694-009-0094-8.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

49

Duong, H., e J. Wolfenstine. "Elevated temperature deformation of submicrometer MgF2". Scripta Metallurgica et Materialia 30, n.º 7 (abril de 1994): 915–19. http://dx.doi.org/10.1016/0956-716x(94)90415-4.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

50

Rooney, T. O., C. Herzberg e I. D. Bastow. "Elevated mantle temperature beneath East Africa". Geology 40, n.º 1 (14 de novembro de 2011): 27–30. http://dx.doi.org/10.1130/g32382.1.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Oferecemos descontos em todos os planos premium para autores cujas obras estão incluídas em seleções literárias temáticas. Contate-nos para obter um código promocional único!