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Статті в журналах з теми "High heat producing"

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Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 28 січня 2023

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1

Hsu-Chieh Yeh. "4832114 Device for producing high heat transfer in heat exchanger tubes." Heat Recovery Systems and CHP 10, no. 1 (January 1990): xiii—xiv. http://dx.doi.org/10.1016/0890-4332(90)90305-4.

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2

UMEZAWA, Shuichi, Hiroyuki SHIMADA, Jun MIYAMOTO, Kenji UEDA, Yuich OHTANI, and Kouji SAKURAI. "Development of a Heat Recovery Centrifugal Heat Pump Producing High Temperature Water." TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 79, no. 799 (2013): 423–30. http://dx.doi.org/10.1299/kikaib.79.423.

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3

Qian, Yong Ming, Qiang Wu, and Yi Dan Zhou. "High-Performance Heat-Insulated Coating Fabric and its Technology for Producing." Key Engineering Materials 464 (January 2011): 429–33. http://dx.doi.org/10.4028/www.scientific.net/kem.464.429.

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A kind of multilayered heat-insulated coating fabric, which can efficiently cuts off the heat generated by sunlight, is made by coating multilayered materials with different functions on fabric surface. Coating material composition, coating process and compatible equipment based on heat-insulated theory are all researched. The result shows that heat-insulated coating fabric bears good heat insulation effect, and the temperature difference between the surface of heat-insulated coating fabric and its inner environment reaches up to over 15 Celsius.

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4

MIYAMOTO, Jun, Kenji UEDA, Yuich OHTANI, Shuichi UMEZAWA, Hiroyuki SHIMADA, and Kouji SAKURAI. "S081013 Development of a heat recovery centrifugal heat pump producing high temperature water." Proceedings of Mechanical Engineering Congress, Japan 2012 (2012): _S081013–1—_S081013–5. http://dx.doi.org/10.1299/jsmemecj.2012._s081013-1.

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5

Soloviev, Vadim, Luka Efishov, and Evgenij Matyushin. "Combined Heat Treatment Method for Producing of Ultra-High Performance Concrete." Solid State Phenomena 335 (July 29, 2022): 129–37. http://dx.doi.org/10.4028/p-rpbmk0.

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Decreasing an overall time of curing for UHPC products is a perspective task that can be solved by combining different heat treatment technologies. The paper presents the results of studying the UHPC microstructure after combined steam and non-steam heat treatment. Concrete specimens after demolding were steam cured for 16 hours, than – in oven camber. Heat treatment in oven chamber for 8 hours under temperature 250 ̊С leads to micro-defects self-healing, due to the new crystalline phase formation. The combined heat treatment allows unleashing of additional potential of UHPC mixes, which could take years in normal conditions The considered curing method with further treatment in oven can not only accelerate the process, but also unleash the additional part of UHPC pozzolanic potential for different mix compositions.

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6

Schmid, R., and J. P. Budliger. "Resonance Stirling Engine producing heat and power (CHP)." E3S Web of Conferences 313 (2021): 01003. http://dx.doi.org/10.1051/e3sconf/202131301003.

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The free-piston Resonance Stirling engine forms a new “electricity producing heating system”. Its compact assembly operates reliably and at high efficiency, setting new standards for small heating systems. Complete units are currently submitted to a prolonged test program, preparing their production at an industrial scale. The engines are heated from outside by a FLOX-burner (flameless flue gas recirculation burner), exposing the working gas to high temperatures. Even at low excess air rates the flue gases are virtually free of pollutants. The free pistons of this resonance concept oscillate in a perfectly stable mode, entailing an important cyclic pressure swing to the working gas. The electric efficiency exceeds 25% and total efficiency (electricity + useful heat) lies above 90%. The heating power of the fuel is used with high benefit, promising a widespread application to this new technology.

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7

Gulyaeva, G. Kh, and M. M. Mukimov. "New producing way for knitted fabric with high heat shielding propert." ACADEMICIA: An International Multidisciplinary Research Journal 11, no. 9 (2021): 641–44. http://dx.doi.org/10.5958/2249-7137.2021.01969.8.

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8

Bobkova, N. M. "Problems in producing a thermally stable, high-strength, heat-resistant ceramic." Glass and Ceramics 49, no. 7 (July 1992): 320–23. http://dx.doi.org/10.1007/bf00677449.

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9

Li, Jianfang, Ryo Fujisawa, Fujio Watanabe, Mitsuhiro Kubota, Noriyuki Kobayashi, and Masanobu Hasatani. "Feasibility Study of Producing High Level Cold Heat Energy by a Carbon/Ammonia Adsorption Heat Pump." JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 36, no. 5 (2003): 540–47. http://dx.doi.org/10.1252/jcej.36.540.

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10

Yang, C. M. J., D. J. Schingoethe, and D. P. Casper. "Protected Methionine and Heat-Treated Soybean Meal for High Producing Dairy Cows." Journal of Dairy Science 69, no. 9 (September 1986): 2348–57. http://dx.doi.org/10.3168/jds.s0022-0302(86)80674-9.

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11

Kelly, Anthony. "Composite Materials for Thermal Expansivity Matching and High Heat Flux Thermal Management." Key Engineering Materials 334-335 (March 2007): 1017–20. http://dx.doi.org/10.4028/www.scientific.net/kem.334-335.1017.

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12

Luong, Tran Thi, Ngo Thi Huong, Bui Thi Viet Ha, Pham Thi Thu Huong, Nguyen Hoa Anh, Do Thi Viet Huong, Quach Thi Ha Van, Phan Tuan Nghia, and Nguyen Thi Van Anh. "Carotenoid producing Bacillus aquimaris found in chicken gastrointestinal tracts." Vietnam Journal of Biotechnology 14, no. 4 (April 19, 2018): 761–68. http://dx.doi.org/10.15625/1811-4989/14/4/12311.

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Pigmented spore-forming bacterial strains were isolated from the gastrointestinal tracts of chickens for screening for heat-stable carotenoid-producing strains that could be applied as feed supplements. Of the seven heat-stable pigmented isolates screened, only two, yellow Sporosarcina saromensis CH1 and red-orange Bacillus aquimaris CH9, produced pigments with typical carotenoid absorbance peaks (400–500 nm). The CH9 carotenoids exhibited higher scavenging activity (73.2%) of DPPH free radicals than the CH1 carotenoids (35.9%) and carotenoids of the reference B. indicus HU36 strain (78.4%), in comparison to 100% activity of acid ascorbic at 18.75 M as the standard. The CH9 strain produced high levels of carotenoids (439 g [g DW]-1) and formed nearly 100% spores, whereas the CH1 strain produced low levels of carotenoids (92 g [g DW]-1) and only achieved 30% sporulation. Chromatographic and spectral profiles of the carotenoids found in CH9 indicated the presence of as many as 11 different carotenoid types closely related to 1-HO-demethylspheroidene and keto/hydroxyl derivatives of  carotene. We successfully produced concentrated orange CH9 spore powder at a high concentration of 6.1 × 1011 CFU g-1; these spores were much more heat-stable (66% survival at 80°C for 20 min) than the reference B. indicus HU36 spores (9% survival at 50°C for 20 min). In conclusion, B. aquimaris CH9 is a promising probiotic carotenoid-producing strain, with heat-stable spores that should withstand the heat-treatment processing required for feed and food supplement production.

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13

Slagstad, Trond. "Did hot, high heat-producing granites determine the location of the Oslo Rift?" Tectonophysics 412, no. 1-2 (January 2006): 105–19. http://dx.doi.org/10.1016/j.tecto.2005.09.012.

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14

Mirzaei, Abdolah, Mojtaba Kafi, Mohsen Ghavami, Mehrdad Mohri, and Hamid-Reza Gheisari. "Ovarian activity in high and average producing Holstein cows under heat stress conditions." Comparative Clinical Pathology 16, no. 4 (March 6, 2007): 235–41. http://dx.doi.org/10.1007/s00580-007-0672-4.

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15

Mukhin, Nikolay, Valentin Afanasjev, Irina Sokolova, Dmitry Chigirev, Rene Kastro, Lyudmila Rudaja, Galina Lebedeva, Aleksandr Oseev, and Andrey Tumarkin. "Heat-Resistant Ferroelectric-Polymer Nanocomposite with High Dielectric Constant." Materials 11, no. 8 (August 15, 2018): 1439. http://dx.doi.org/10.3390/ma11081439.

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The high dielectric constant ferroelectric-polymer nanocomposite was developed for producing the heat-resistant and chemical stable planar layers. According to the composite coatings formation conditions, the following value ranges of dielectric constant and loss factor were received: 30–400 for dielectric constant and 0.04–0.1 for loss tangent, accordingly. Unlike of composite components, the obtained composite material is characterized by thermo-stability of electrical parameters up to 250 °C. The dielectric frequency spectra of the composite exhibit two clearly visible peaks in contrast to the spectra of the polymer and ferroelectric ceramics. The developed composite material can be used as a built-in film capacitors material in microelectronic devices.

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16

ENACHE, ELENA, AI KATAOKA, D. GLENN BLACK, LISA WEDDIG, MELINDA HAYMAN, and KRISTIN BJORNSDOTTIR-BUTLER. "Heat Resistance of Histamine-Producing Bacteria in Irradiated Tuna Loins." Journal of Food Protection 76, no. 9 (September 1, 2013): 1608–14. http://dx.doi.org/10.4315/0362-028x.jfp-12-467.

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Consumption of foods high in biogenic amines leads to an illness known as histamine, or scombrotoxin, poisoning. The illness is commonly associated with consumption of fish with high levels of histamine (≥500 ppm). The objective of this study was to determine and compare the heat resistance of five histamine-producing bacteria in irradiated albacore tuna loins. Heat-resistance parameters (D- and z-values) were determined for Morganella morganii, Raoultella planticola, Hafnia alvei, and Enterobacter aerogenes. D- or z-values were not determined for Photobacterium damselae, which was the most heat-sensitive organism in this study. P. damselae declined >5.9 log CFU/g after a heat treatment of 50°C for 10 min, 54°C for 3 min, and 56°C for 0.5 min. M. morganii was the most heat-resistant histamine-producing bacteria in albacore tuna loins, followed by E. aerogenes, H. alvei, and R. planticola. M. morganii and E. aerogenes had the highest D50°C, 49.7 ± 17.57 and 51.8 ±17.38 min, respectively. In addition, M. morganii had the highest D-values for all other temperatures (54, 56, and 58°C) tested. D- and z-values were also determined for M. morganii in skipjack tuna. While no significant (P > 0.05) difference was observed between D54°C and D56°C of M. morganii in either albacore or skipjack tuna, the D58°C (0.4 ± 0.17 min) was significantly lower (P < 0.05) in skipjack than in albacore (0.9 ± 0.24 min). The z-values for all organisms tested were in the range of 3.2 to 3.8°C. This study suggests that heat treatment designed to control M. morganii in tuna loins is sufficient for controlling histamine-producing bacteria in canned-tuna processing environments.

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17

Aruova, Lyazat, Nabi Dauzhanov, Batyrkhan Tokmyrza, Aizhan Utkelbaeva, and Zolaman Shashpan. "Innovative Technologies for Producing Foam Concrete Products Using Solar Energy." International Journal of Engineering & Technology 7, no. 4.7 (September 27, 2018): 36. http://dx.doi.org/10.14419/ijet.v7i4.7.20376.

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An energy efficient technology and a method for the production of foam concrete products have been developed. They involve the use of solar energy in the process in order to reduce energy consumption for heat treatment, which allows to produce high-quality products with a low production cost with a daily production cycle.The technical and economic evaluation of the developed solar technology shows that during the hot season up to 95% of the heat energy needed to intensify the hardening of the foam concrete is provided by a renewable energy source. The annual replacement of organic fuels with solar energy, considering the winter period of the year, is up to 65%. The annual economic effect in the oil equivalent of the use of this solar technology in enterprises located in regions with favorable weather and climate conditions, with a productivity of 20 thousand m3/year is up to 85 tons.The use of solar technology to ensure accelerated hardening of foam concrete products makes it possible to make production highly efficient, energy-saving and environmentally friendly. It meets modern requirements for saving organic fuels and reducing harmful emissions into the atmosphere.The energy efficiency of a yearly solar thermal treatment consists of high heat-absorbing and heat-insulating ability of helio-coatings, helio-chambers, and controlling the expenses of the heat source. As a result, energy savings in the winter months are 15-35%, in summer - 70-100%, and the average annual energy savings are in the range from 50 to 75% depending on the class of concrete and the thickness of products.

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18

Tokmyrza, Batyrkhan, Lyazat Aruova, Nabi Dauzhanov, Zhumabeke Ospanova, and Aizhan Utkelbaeva. "Comprehensive heat treatment using solar energy to produce high quality foam concrete." E3S Web of Conferences 116 (2019): 00092. http://dx.doi.org/10.1051/e3sconf/201911600092.

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The article illustrates the possibility of producing products from foam concrete by using effective components and the intensification of solar heating by soft modes, which allows to obtain high-quality material and organize energy-efficient and environmentally friendly production. Solar technology in the production of foam concrete – a new method of heat treatment, which is highly environmentally friendly and safe.

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19

Gulkov, Yuri V., Anna V. Turysheva, and Irina V. Vinogradova. "Producing Steels with Special Properties Using a Jet Heat Treatment System." Key Engineering Materials 854 (July 2020): 30–36. http://dx.doi.org/10.4028/www.scientific.net/kem.854.30.

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The prospects of production of special properties steels in the Russian and global metal market are estimated. The necessity of using new types of steels is substantiated. The prospects of introducing steels with special properties developed by PJSC “Magnitogorsk Iron and Steel Company” to the market are determined. Evaluation of measures for the production of large volumes of products showed that there is a problem of a significant increase in the time of manufacturing and delivery of output products to the consumer. As measures to ensure the modernization of the technological complex of the steel enterprise and reduce the time for steel production, the system of jet heat treatment of metal is proposed. According to the results of comparative analysis of the MAGSTRONG H500 and HARDOX 500 alloys used in mining equipment under conditions of increased wear, it was revealed that the proposed method of heat treatment allows one to achieve high wear resistance properties, with high coefficients of tensile strength and toughness.

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20

McLaren, Sandra, and Roger Powell. "Magmatism, orogeny and the origin of high-heat-producing granites in Australian Proterozoic terranes." Journal of the Geological Society 171, no. 2 (January 30, 2014): 149–52. http://dx.doi.org/10.1144/jgs2013-040.

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21

Tabata, Kenji, Fuminori Hida, Tomoyuki Kiriyama, Noriaki Ishizaki, Toshiaki Kamachi, and Ichiro Okura. "Measurement of soil bacterial colony temperatures and isolation of a high heat-producing bacterium." BMC Microbiology 13, no. 1 (2013): 56. http://dx.doi.org/10.1186/1471-2180-13-56.

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22

Zahorulko, Andreii, Aleksey Zagorulko, Bogdan Liashenko, and Irina Gordienko. "Improvement of the method for producing confitures." BIO Web of Conferences 40 (2021): 02008. http://dx.doi.org/10.1051/bioconf/20214002008.

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The method for the production of confiture has been improved, which consists in preliminary infrared processing of fruits and vegetables by drying at a temperature of 45...50 °C, followed by grinding them to 1.5...2.5 mm. Introduction of inverted syrup (to prevent sugar crystallization during storage of confitures), and subsequent boiling to a dry matter content of 60...76% at a temperature of 45...50 °C, which makes it possible to obtain confitures with high organoleptic characteristics. The obtained confiture is characterized by a high biological value and quality due to the increase of vitamins and microelements in it due to the use of fruit and berry raw materials and providing a gentle heat and mass exchange treatment at all stages of production.

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23

Leroy, J., G. Opsomer, and A. de Kruif. "Reproductive performance in high producing dairy cows: practical implications." Tierärztliche Praxis Ausgabe K: Kleintiere / Heimtiere 36, S 01 (2008): S29—S33. http://dx.doi.org/10.1055/s-0038-1622717.

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SummarySeveral studies have clearly demonstrated that the fertility of high yielding dairy cows has declined over the past 25 years. The resumption of ovarian activity post partum has been retarded and conception rates have dropped significantly from 55 to 40%. Accordingly, the calving interval has increased from about 385 days to 417 days. The percentage of cows culled because of infertility has risen from 5 to 8% per year. The “subfertility syndrome” is a multifactorial problem. As the negative energy balance and general health status after calving are known to be paramount factors hampering fertility, it is apparent that avoiding both is among the most important preventive measures to be taken. Improvement of the energy status by achieving a high dry matter intake and the provision of optimal and well balanced nutrition during the transition period as well as during early lactation are key goals in this effort. To achieve these goals, we should not only calculate the rations on paper, but should also check in the stable to determine whether the calculated amount is really being consumed by the cows. Furthermore, veterinarians should use their “clinical eyes” as well as other diagnostic tools to assess the general health status of the cows and to assess at which aspect of the process things are going wrong and need to be adjusted. Besides the control of the negative energy balance and health status, other management factors that need to be maximized include heat detection, cow comfort, insemination technique, time of insemination during estrus and sperm quality. Only if management is on a very high level high milk production and good fertility can be a feasible combination.

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24

Leroy, J., G. Opsomer, and A. de Kruif. "Reproductive performance in high producing dairy cows: practical implications." Tierärztliche Praxis Ausgabe G: Großtiere / Nutztiere 36, S 01 (2008): S29—S33. http://dx.doi.org/10.1055/s-0038-1624595.

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Анотація:

SummarySeveral studies have clearly demonstrated that the fertility of high yielding dairy cows has declined over the past 25 years. The resumption of ovarian activity post partum has been retarded and conception rates have dropped significantly from 55 to 40%. Accordingly, the calving interval has increased from about 385 days to 417 days. The percentage of cows culled because of infertility has risen from 5 to 8% per year. The “subfertility syndrome” is a multifactorial problem. As the negative energy balance and general health status after calving are known to be paramount factors hampering fertility, it is apparent that avoiding both is among the most important preventive measures to be taken. Improvement of the energy status by achieving a high dry matter intake and the provision of optimal and well balanced nutrition during the transition period as well as during early lactation are key goals in this effort. To achieve these goals, we should not only calculate the rations on paper, but should also check in the stable to determine whether the calculated amount is really being consumed by the cows. Furthermore, veterinarians should use their “clinical eyes” as well as other diagnostic tools to assess the general health status of the cows and to assess at which aspect of the process things are going wrong and need to be adjusted. Besides the control of the negative energy balance and health status, other management factors that need to be maximized include heat detection, cow comfort, insemination technique, time of insemination during estrus and sperm quality. Only if management is on a very high level high milk production and good fertility can be a feasible combination.

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25

UMEZAWA, Shuichi, Kenji UEDA, Ryo FUKUSHIMA, Haruo AMARI, Hiroyuki SHIMADA, and Takashi MATSUHISA. "Application Study of a Heat Pump Producing High Temperature and High Pressure Water for an Industrial Drying Process." TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 78, no. 787 (2012): 435–39. http://dx.doi.org/10.1299/kikaib.78.435.

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26

Kuzevanov, Vyacheslav S., Galina S. Zakozhurnikova, and Sergey S. Zakozhurnikov. "Peculiarities of Heat and Mass Transfer in Porous Moistened Mediums at High Thermal Loads." Solid State Phenomena 299 (January 2020): 14–19. http://dx.doi.org/10.4028/www.scientific.net/ssp.299.14.

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The process of silicon carbide producing (SiC) in a resistance furnace is accompanied by moisture movement in the batch. An important consideration is the accounting of moisture transfer in the preparation of the mathematical description of the process. The aim of the article is to improve the existing model of heat and mass transfer in SiC production.

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27

Balasubramaniam, V. M., and D. Farkas. "High-pressure Food Processing." Food Science and Technology International 14, no. 5 (October 2008): 413–18. http://dx.doi.org/10.1177/1082013208098812.

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Анотація:

High pressure processing (HPP) of foods offers a commercially viable and practical alternative to heat processing by allowing food processors to pasteurize foods at or near room temperature. Pressure in combination with moderate temperature also seems to be a promising approach for producing shelf-stable foods. This paper outlines research needs for further advancement of high pressure processing technology. Kinetic models are needed for describing bacterial inactivation under combined pressure-thermal conditions and for microbial process evaluation. Further, identification of suitable surrogate organisms are needed for use as indicator organisms and for process validation studies. More research is needed to evaluate process uniformity at elevated pressure-thermal conditions to facilitate successful introduction of low-acid shelf-stable foods. Combinations of non-thermal technologies with high pressure could reduce the severity of the process pressure requirement. Likewise, processing equipment requires improvements in reliability and line-speed to compete with heat pasteurization lines. More studies are also needed to document the changes in animal and vegetable tissue and nutrient content during pressure processing, from types of packaging, and from storage.

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28

Wang, Xiao-Yong. "Kinetic Hydration Heat Modeling for High-Performance Concrete Containing Limestone Powder." Advances in Materials Science and Engineering 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/4090265.

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Анотація:

Limestone powder is increasingly used in producing high-performance concrete in the modern concrete industry. Limestone powder blended concrete has many advantages, such as increasing the early-age strength, reducing the setting time, improving the workability, and reducing the heat of hydration. This study presents a kinetic model for modeling the hydration heat of limestone blended concrete. First, an improved hydration model is proposed which considers the dilution effect and nucleation effect due to limestone powder addition. A degree of hydration is calculated using this improved hydration model. Second, hydration heat is calculated using the degree of hydration. The effects of water to binder ratio and limestone replacement ratio on hydration heat are clarified. Third, the temperature history and temperature distribution of hardening limestone blended concrete are calculated by combining hydration model with finite element method. The analysis results generally agree with experimental results of high-performance concrete with various mixing proportions.

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29

Jožef, Ivana, Maja Gregić, Tina Bobić, Božo Važić, and Vesna Gantner. "Determination of the Effect of Daily Production Level of Primiparous Holstein Cows on Response to Heat Stress Conditions (THI Threshold) in Eastern Croatia." АГРОЗНАЊЕ 19, no. 2 (July 4, 2018): 89. http://dx.doi.org/10.7251/agren1802089j.

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Анотація:

The goal of this paper was to determine the effect of daily production level of primiparous Holstein cows kept on dairy cattle farms in Eastern Croatia on response to heat stress conditions (THI threshold). With that purpose, individual test-day records with data on ambient temperature and relative humidity in the barns were analysed. Data were collected in regular milk recording from 2006-2012. The THI threshold values for daily milk yield were determined by least square analyses of variance for each given THI value (from 68 to 72) using the PROC MIXED (SAS). Low producing cows experienced significant drop at THI=68, while in high producing primiparous Holsteins first significant drop in daily milk yield was observed when THI=69. Also, the amount of daily production drop depended on cow’s production level (0.155-0.256 kg/day in high producing; 0.319-0.460 kg/day in low producing). It could be concluded that the response of primiparous Holstein cows kept in Eastern Croatia to heat stress conditions depends on daily production level.

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30

Driver, L. S., Ric R. Grummer, and L. H. Schultz. "Effects of Feeding Heat-Treated Soybeans and Niacin to High Producing Cows in Early Lactation." Journal of Dairy Science 73, no. 2 (February 1990): 463–69. http://dx.doi.org/10.3168/jds.s0022-0302(90)78692-4.

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31

Lubyanoy, D. A., R. O. Mamedov, S. V. Knyazev, B. M. Sokolov, and N. V. Oznobikhina. "Resource and energy saving technology for producing high-quality steel castings with heat-time treatment." IOP Conference Series: Materials Science and Engineering 866 (August 13, 2020): 012044. http://dx.doi.org/10.1088/1757-899x/866/1/012044.

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Shrivastava, K. L., Deva Ram, and Virendra Gaur. "High heat producing radioactive granites of malani igneous suite at northeast of Jodhpur, northwestern India." Journal of the Geological Society of India 89, no. 3 (March 2017): 291–94. http://dx.doi.org/10.1007/s12594-017-0601-3.

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33

Shehab-El-Deen, Mohamed Ahmed M. M., Moustafa S. Fadel, Ann Van Soom, Sherif Y. Saleh, Dominiek Maes, and Jo L. M. R. Leroy. "Circadian rhythm of metabolic changes associated with summer heat stress in high-producing dairy cattle." Tropical Animal Health and Production 42, no. 6 (March 11, 2010): 1119–25. http://dx.doi.org/10.1007/s11250-010-9534-1.

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34

Syred, N., T. O'Doherty, M. Biffin, and R. Sharief. "A Novel Cyclone Heat Exchange." Energy & Environment 3, no. 4 (June 1992): 387–400. http://dx.doi.org/10.1177/0958305x9200300404.

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This paper describes a programme of work directed at applying novel cyclone dust separator technology to cyclone preheater towers. The novel technology utilises a concept called a Vortex Collector Pocket which is used to improve overall collection efficiency as well as making possible the construction of a very compact novel direct contact solid to gas heat exchanger. Cyclone preheater towers are formed by connecting four or more large cyclones in series to the end of a cement kiln. Raw cement meal falls from the top stage through the system in counterflow to the hot gases forming a direct contact gas to solid heat exchanger of potentially high effectiveness. Work directed at producing a 1/10 scale pilot model of a compact high efficiency cyclone preheater tower is described together with preliminary data.

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35

FUKUSHIMA, Ryo, Kenji UEDA, Shuichi UMEZAWA, Haruo AMARI, Hiroyuki SHIMADA, and Takashi MATSUHISA. "H206 Application Study of a Heat Pump Producing High Temperature and High Pressure Water for an Industrial Drying Process." Proceedings of the National Symposium on Power and Energy Systems 2011.16 (2011): 495–98. http://dx.doi.org/10.1299/jsmepes.2011.16.495.

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36

Prabha Adhikari, Prativa Sharma, and Surya Sharma Bhatta. "A Review on Effect of Climatic Zones on the Milk Production of Holstein Friesian and Jersey Cows." International Journal for Research in Applied Sciences and Biotechnology 8, no. 2 (March 11, 2021): 45–51. http://dx.doi.org/10.31033/ijrasb.8.2.6.

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Анотація:

Dairy farming is emerging as commercial enterprise and milk as the part of dietary food but the milk productivity of the cattle varies with the variation in climatic factors. So, breed selection plays imperative role on maintaining productivity and adoptability in different environments. Holstein Friesian and Jersey being the temperate breeds with high milk producing capacities could not perform well on the tropical and sub-tropical region. With proper feeding, Holstein has higher milk yield and low-fat percentage than Jersey. Milk yield varies by 2.58% in Holstein and 2.09% in Jersey cow with the change in climatic factors (minimum temperature, relative humidity and solar radiation). In hot areas, both breeds suffer from heat stress showing low feed intake, higher body and rectal temperature, high respiration rates and high heart beats. Holstein has high increase than Jersey in rectal temperature and heart beat by 0.550C and 15.4 inhalations/min respectively which shows Jersey are more heat tolerant than Holstein. It is due to the larger heat dissipating area, short and light hair, lighter body coat and thin fat. Heat stress can be managed by providing shade, nutritious feed and genetic improvements. As the climate change is emerging, it can affect cattle in tropical regions even more in near future. To overcome this future challenge, further research and study must be done for the proper management of Holstein and Jersey in stress condition and heat tolerance breed must be developed by genetic improvement.

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37

Channa, Iftikhar Ahmed, Aqeel Ahmed Shah, Muhammad Rizwan, Muhammad Atif Makhdoom, Ali Dad Chandio, Muhammad Ali Shar, and Asif Mahmood. "Process Parameter Optimization of a Polymer Derived Ceramic Coatings for Producing Ultra-High Gas Barrier." Materials 14, no. 22 (November 18, 2021): 7000. http://dx.doi.org/10.3390/ma14227000.

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Silica is one of the most efficient gas barrier materials, and hence is widely used as an encapsulating material for electronic devices. In general, the processing of silica is carried out at high temperatures, i.e., around 1000 °C. Recently, processing of silica has been carried out from a polymer called Perhydropolysilazane (PHPS). The PHPS reacts with environmental moisture or oxygen and yields pure silica. This material has attracted many researchers and has been widely used in many applications such as encapsulation of organic light-emitting diodes (OLED) displays, semiconductor industries, and organic solar cells. In this paper, we have demonstrated the process optimization of the conversion of the PHPS into silica in terms of curing methods as well as curing the environment. Various curing methods including exposure to dry heat, damp heat, deep UV, and their combination under different environments were used to cure PHPS. FTIR analysis suggested that the quickest conversion method is the irradiation of PHPS with deep UV and simultaneous heating at 100 °C. Curing with this method yields a water permeation rate of 10−3 g/(m2⋅day) and oxygen permeation rate of less than 10−1 cm3/(m2·day·bar). Rapid curing at low-temperature processing along with barrier properties makes PHPS an ideal encapsulating material for organic solar cell devices and a variety of similar applications.

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38

McLaren, Sandra, Mike Sandiford, and Roger Powell. "Contrasting styles of Proterozoic crustal evolution: A hot-plate tectonic model for Australian terranes." Geology 33, no. 8 (August 1, 2005): 673–76. http://dx.doi.org/10.1130/g21544ar.1.

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Abstract Proterozoic terranes in Australia record complex tectonic histories in the interval 1900– 1400 Ma that have previously been interpreted by means of simple intracratonic or plate-tectonic models. However, these models do not fully account for (1) repeated tectonic reactivation (both orogenesis and rifting), (2) mainly high-temperature–low-pressure metamorphism, (3) rifting and sag creating thick sedimentary basins, (4) the nature and timing of voluminous felsic magmatism, (5) relatively large aspect ratio orogenic belts, and (6) a general paucity of diagnostic plate-boundary features. A key to understanding these histories is the observation that Australian Proterozoic terranes are characterized by an extraordinary, but heterogeneous, enrichment of the heat-producing elements. This enrichment must contribute to long-term lithospheric weakening, and thus we advocate a hybrid lithospheric evolution model with two tectonic switches: plate-boundary–derived stresses and heat-producing-element–related lithospheric weakening. The Australian Proterozoic crustal growth record is therefore a function of the magnitude of these stresses, the way in which the heat-producing elements are distributed, and how both of these change with time.

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39

Singh, Laishram S., and G. Vallinayagam. "High Heat Producing Volcano-Plutonic Rocks of the Siner Area, Malani Igneous Suite, Western Rajasthan, India." International Journal of Geosciences 03, no. 05 (2012): 1137–41. http://dx.doi.org/10.4236/ijg.2012.35115.

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40

McLaren, Sandra, Mike Sandiford, and Martin Hand. "High radiogenic heat–producing granites and metamorphism—An example from the western Mount Isa inlier, Australia." Geology 27, no. 8 (1999): 679. http://dx.doi.org/10.1130/0091-7613(1999)027<0679:hrhpga>2.3.co;2.

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41

Collins, M. G., W. S. Hunter, and C. M. Blatteis. "Factors producing elevated core temperature in spontaneously hypertensive rats." Journal of Applied Physiology 63, no. 2 (August 1, 1987): 740–45. http://dx.doi.org/10.1152/jappl.1987.63.2.740.

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Core temperature (Tco) of the spontaneously hypertensive rat (SHR) is consistently higher by approximately 1 degree C than that of normotensive controls. To analyze factors producing the elevated Tco, mean skin temperature (Tsk), metabolic heat production (M), respiratory evaporative heat loss (Eres), effective tissue thermal conductance (K), systolic blood pressure (BP), and Tco were determined in eight male SHR and nine male normotensive Wistar-Kyoto (WKY) rats habituated to rest quietly in neck stock restraint while exposed to ambient temperatures (Ta) of 12.5, 17, 23, 28.5, 32, 34, and 35 degrees C. At all temperatures steady-state BP, Tco, and M were higher for SHR's than for WKY's. SHR's could maintain thermal balance up to Ta 32 degrees C, and WKY's up to 34 degrees C. Eres from SHR's was greater than from WKY's at Ta of 12.5, 17, and 28.5 degrees C. K of SHR's was not different from or was higher than K of WKY's, and K for both groups was 2.6 times greater at Ta 32 degrees C than at 17 degrees C. These results indicate that the high Tco of SHR's is due to increased M uncompensated by increased K or Eres.

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42

Kobashi, Makoto, and Naoyuki Kanetake. "Novel Processing of Porous Titanium Composite for Producing Open Cell Structure." Materials Science Forum 539-543 (March 2007): 1004–9. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.1004.

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Processing technique to produce open-cell porous titanium composite was developed. One of the outstanding benefits of porous titanium composite is both physical and mechanical properties can be controlled widely by changing the metal/ceramic fraction and cell structures. In this work, porous titanium composite was fabricated by a chemical reaction between titanium powder and boron carbide (B4C) powder. The reactions between titanium and B4C generates a large amount of latent heat and, therefore, it was a combustion and self-propagating mode. Precursors were made by compacting the starting powder blend (Ti and B4C), and heated in an induction furnace to induce the reaction. The reaction was strongly exothermic and, therefore, the precursor was sintered by its latent heat when the Ti/B4C blending ratio was appropriate. The reaction products were titanium boride (TiB and/or TiB2) and titanium carbide (TiC). By controlling the Ti/B4C blending ratio, it was possible to control the volume fraction of reaction products in titanium matrix. The combustion synthesized titanium composite was porous and its cell structure was strongly affected by the processing condition of the precursor (porosity and Ti/B4C blending ratio). High porosity with open pores was obtained with small Ti/B4C ratios and high porosity of the precursor, while the cell structure was closed and spherical with high Ti/B4C ratio. The cell-wall size was varied from several tens of microns to about 500 microns by changing the combustion temperature.

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43

Olszyna, Andrzej Roman, and Marek Kostecki. "Zirconium – Based Ceramic Targets for Producing Nanocrystalline Coatings Resistant to Heat and Thermal Creep." Journal of Nano Research 11 (May 2010): 89–94. http://dx.doi.org/10.4028/www.scientific.net/jnanor.11.89.

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Technology of thermal ceramic barriers (TBC) has been chiefly designed for materials with a single thermal barrier of the 7YSZ type. A high content of Y2O3 ensures a good phase stability of the YSZ material. In search for other alternative materials suitable for TBC, the material most often examined is modified zirconium oxide. The modification consists of stabilizing the ZrO2 powder with Y2O3 and doping it with La, Gd and Nd. This paper presents the results of studies on producing cathodic zirconium oxide-based ceramic targets intended for depositing refractory heat-resistant nano-crystalline TBC coatings. The targets are characterized by a high density (close to its theoretical value) and have a homogeneous phase and chemical structure.

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44

Zhou, Zuo-Min, Chang-Qian Ma, Shi-Hua Qi, Yu-Fei Xi, and Wei Liu. "Late Mesozoic high-heat-producing (HHP) and high-temperature geothermal reservoir granitoids: The most significant geothermal mechanism in South China." Lithos 366-367 (August 2020): 105568. http://dx.doi.org/10.1016/j.lithos.2020.105568.

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45

Rahbar, R., A. Sadeghi-Sefidmazgi, R. Abdullahpour, and A. Nejati-Javaremi. "Can post-milking insemination increase conception rate in high-producing Holstein cows under heat stress? A retrospective study." Journal of Agricultural Science 157, no. 03 (April 2019): 254–59. http://dx.doi.org/10.1017/s0021859619000510.

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AbstractHeat stress, especially in countries with hot climates, is a major cause of low fertility in high-producing dairy herds. Management strategies are needed to help producers improve the reproductive performance of their dairy animals under such conditions. The current study aims to evaluate the effects of pre- and post-milking insemination on the conception rate (CR) in dairy cows. The dataset included 1294 insemination records leading to pregnancy in 708 lactating Holstein dairy cows. The GLIMMIX model procedure of SAS based on the generalized linear mixed model methodology was used to analyse the results of insemination (success or failure) as a binomial distribution with the logit link function. Differences were observed in CRs between pre- and post-milking insemination. The pregnancy odds ratio (OR) for post-milking insemination relative to that for pre-milking one was estimated at 1.90 [1.23‒2.91; 95% confidence interval (CI)]. Different levels of interaction were obtained between average daily milk production and time of insemination. In the high-producing group, the pregnancy OR for the post-milking relative to that for the pre-milking insemination was estimated at 3.53 (2.00‒6.24; 95% CI). A significant interaction effect was obtained between insemination time and the temperature-humidity index. A pregnancy OR of 2.52 (1.22‒4.14; 95% CI) was recorded for the cows inseminated after milking on days with higher levels of heat and humidity stress v. the pre-milking inseminated ones. Based on the results, post-milking insemination of high-producing cows increased CRs, especially on days with high heat and humidity stress.

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46

Lordkaew, Sittichai, Narit Yimyam, Anupong Wongtamee, Sansanee Jamjod, and Benjavan Rerkasem. "Evaluating a heat-tolerant wheat germplasm in a heat stress environment." Plant Genetic Resources: Characterization and Utilization 17, no. 04 (February 8, 2019): 339–45. http://dx.doi.org/10.1017/s1479262119000054.

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AbstractHeat stress, a regular risk to wheat in the subtropics, is a growing threat in other wheat producing regions as the global temperature rises. This paper reports on three experiments evaluating 49 entries of the 13th High Temperature Wheat Yield Trial (13HTWYT) from the International Centre for Maize and Wheat Improvement (distributed in 2014), with Fang 60 as the local check, at two locations at Chiang Mai, Thailand, a designated representative of the wheat mega-environment 5, in which temperature for the coolest month averages >17.5 °C and the crop is subjected to high temperature for the entire growing season. The wheat was grown in the lowland (elevation 330 m) at Chiang Mai University in (i) sand culture to simulate the condition of non-limiting nutrient and water supply and (ii) in the field and (iii) as an on-farm trial in the highlands (elevation 800 m) at Mae Wang district of Chiang Mai province. Heat tolerance in the wheat germplasm, recently developed for adaptation to high temperature, was indicated by longer pre-heading duration, and the positive correlation between days to heading and grain yield all three experiments. The longer time before heading enabled development of larger spikes that produced more seeds from more and larger spikelets and more competent florets. However, with the number of spikes that was either lower than or similar to Fang 60, none of the recently developed 13HTWYT entries out-yielded the local check from the 1970s.

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47

Godzsák, Melinda, and Zoltán Gácsi. "Examination of Aluminium Based Automotive Casting." Materials Science Forum 729 (November 2012): 91–96. http://dx.doi.org/10.4028/www.scientific.net/msf.729.91.

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Automotive castings have to meet more and more versatile requirements these days. One of the most important requirements towards suppliers and foundries is producing parts of better quality, higher performance but at the same time of less weight. In order to couple this small weight with high performance and excellent quality these products should meet very strict mechanical standards of automotive parts. There is a constant need for production engineering developments ranging from purity degree - that is producing molten metal with high cleanness - to grain refinement and alloy improving including heat treatment technologies.

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48

Krzyńska, A., and A. Kochański. "Properties and Structure of High-Silicone Austempered Ductile Iron." Archives of Foundry Engineering 14, no. 2 (June 1, 2014): 91–94. http://dx.doi.org/10.2478/afe-2014-0043.

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Анотація:

Abstract The results presented in this paper are a continuation of the previously published studies. The results of hest treatment of ductile iron with content 3,66%Si and 3,80% Si were produced. The experimental castings were subjected to austempering process for time 30, 60 and 90 minutes at temperature 300°C. The mechanical properties of heat treated specimens were studied using tensile testing and hardness measurement, while microstructures were evaluated with conventional metallographic observations. It was again stated that austempering of high silicone ferritic matrix ductile iron allowed producing ADI-type cast iron with mechanical properties comparable with standard ADI.

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49

FEHLHABER, KARSTEN, and RÜDIGER-THOMAS HESELER. "A Rapid Test to Detect ST-producing Escherichia coli in Food." Journal of Food Protection 55, no. 10 (October 1, 1992): 792–95. http://dx.doi.org/10.4315/0362-028x-55.10.792.

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Pasteurized milk, liquid egg, minced meat, and various salads were artificially contaminated with varying numbers of cells from six Escherichia coli (E. coli) strains able to produce heat-stable enterotoxins (ST). The ST-producing E. coli were detected by the following procedure within 24 h without isolation by cultivation. After enrichment of the food sample in GN broth (4 h at 37°C), the material was transferred to brain heart infusion broth, incubated (16–18 h at 37°C), centrifuged (20 min, 7000 g) and heated to 80°C for 10 min, the supernatant was tested with the infant mouse test. The sensitivity (= ratio of detectable E. coli per total microbial numbers in the food sample) of the test procedure was high even in many food samples with a considerable competitive microbial flora. The procedure was used to test 419 routine food samples. Enterotoxigenic bacteria were found in 7 samples of liquid egg and 4 samples of salad. The test is recommended as a rapid screening test in food control.

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50

Singh, Ajit Pal, Fei Yang, Rob Torrens, Brian Gabbitas, and Leandro Bolzoni. "Cost-Effective Production of High-Property Titanium Alloy from Powder." Materials Science Forum 941 (December 2018): 1088–94. http://dx.doi.org/10.4028/www.scientific.net/msf.941.1088.

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Анотація:

Blended Elemental Powder Metallurgy is a very attractive method for producing titanium alloys, which can be formed near net shape and have freedom in composition selection. However applications are still limited due to affordability. In this paper, we will discuss a possible cost-effective route, combining vacuum sintering, extrusion, and heat treatment, to produce titanium alloys with similar or better mechanical properties than that of ingot metallurgy titanium alloys. The as-processed material with an oxygen content of 0.34 ± 0.005 wt.% was subjected to heat treatments such as β annealing plus ageing and α+β annealing without ageing to attain a typical lamellar/Widmanstätten/basketweave type structure with a large variation in terms of the microstructural features such as grain size, colony size, inter-lamellar spacing, thickness of grain boundary α, and size of individual lamellar. From mechanical property data attained here, it was apparent that annealing in high α-β region gave a much better combination of mechanical properties: yield strength (860-902 MPa), ultimate tensile strength (1060-1084 MPa) and ductility/plastic strain (11.5-13.6%). The hardness values of heat treated material varied between 346-376 Vickers hardness (36.8-44.5 Rockwell hardness).

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