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Journal articles on the topic 'Thermical range'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

KROKHALEV, A. V., D. R. CHERNIKOV, D. V. ROSSEIN, et al. "USE OF EXPLOSION PRESSING AND THERMICAL PROCESSING FOR THE PRODUCTION OF MATERIALS ON THE BASIS OF METASTABLE PHASE TI2FE." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 11(294) (November 2024): 57–65. https://doi.org/10.35211/1990-5297-2024-11-294-57-65.

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The basic regularities of formation of structure and phase composition of materials of Fe-Ti system at compaction by explosion of powder mixtures of titanium and iron are considered. The influence of the mechanism of plastic deformation of powder particles on the process of formation of metastable intermetallic phase Ti2Fe with increased hydrogen capacity has been found out. It is shown that an effective method of obtaining materials based on Ti2Fe is the combination of explosive pressing of a mixture of Fe and Ti powders with subsequent thermal treatment in the intercritical temperature range

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Schuster, Jean Jonathan, Cristiano Henrique Schuster, Eduardo Stüker, Áttila Leães Rodrigues, Luiz Eduardo Medeiros, and Felipe Denardin Costa. "OCORRÊNCIA DE INTERMITÊNCIA NA TRANSIÇÃO LAMINAR-TURBULENTA EM UM ESCOAMENTO DE COUETTE PLANO." Ciência e Natura 38 (July 20, 2016): 354. http://dx.doi.org/10.5902/2179460x20258.

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The transition from laminar-turbulent flow regime is important in most of the fluid mechanics application areas. In the planetary boundary layer (PBL), the flow is predominantly turbulent. However, shortly after sunset, the incidence of solar radiation ceases and the surface begins to lose heat through the emission of long-wave, yielding in a thermical stratified stable boundary layer (SBL), where turbulence can be suppressed in almost all scales. Under these conditions the production of turbulence is predominantly mechanical, and at nights with strong stratification, the turbulent activity is

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Garcia, Maria B., Carlos Díaz, and Raúl Hoffrén. "Past and present long-term refugia for biodiversity in mountains." ARPHA Conference Abstracts 8 (May 28, 2025): e156554. https://doi.org/10.3897/aca.8.e156554.

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Biodiversity loss is one of the main consequences of the two major current drivers of global change: land cover change and climate change. While climate warming is a universal driver, changes in land use are expected to be lower in protected areas. However, land cover changes could be important if protection leads to vegetation recovery following the abandonment of intensive traditional land uses. Our studies in the Ordesa y Monte Perdido National Park (central Spanish Pyrenees) aim to identify areas that have been most resistant to land cover change in the long-term past, and areas that will

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Abed, Nabeel, Imran Afgan, Andrea Cioncolini, Hector Iacovides, and Adel Nasser. "Assessment and Evaluation of the Thermal Performance of Various Working Fluids in Parabolic Trough Collectors of Solar Thermal Power Plants under Non-Uniform Heat Flux Distribution Conditions." Energies 13, no. 15 (2020): 3776. http://dx.doi.org/10.3390/en13153776.

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Changing the heat transfer fluid (HTF) is a viable approach to study the corresponding effect on the thermal and hydraulic performances of parabolic trough collectors (PTC). Three categorized-types of pure fluids are used in this study; water, Therminol® VP-1 and molten salt. The parametric comparison between pure fluids is also studied considering the effect of various inlet fluid temperatures and different Reynolds ( R e ) numbers on the thermal performance. Two low-Reynolds turbulence models are used; Launder and Sharma (LS) k-epsilon and Shear Stress Transport (SST) k-omega models. In orde

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Fernandez, Pablo, Jerome Delva, Celestin Ott, Philipp Maier, and Quentin Gallas. "Experimental Measurement Benchmark for Compressible Fluidic Unsteady Jet." Actuators 7, no. 3 (2018): 58. http://dx.doi.org/10.3390/act7030058.

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A benchmark of different measurement techniques is presented to characterize the dynamic response of a synthetic jet actuator working in compressible regime. The setup involves a piston-based synthetic jet, as well as the benchmarked measurements are hot-wire, cold-wire, Laser Doppler Anemometry, pressure transducer, and Schlieren visualization. Measured flow temperatures range from 20 °C to 150 °C, pressure ranges from 0.5 atm to 4 atm, and velocity are up to 300 m/s. The extreme values of these ranges are reached in an oscillating fashion at a frequency ranging from 30 to 100 Hz. The measure

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Tai, Le Duc, Kunal Sandip Garud, and Moo-Yeon Lee. "Experimental Study on Thermal Management of 5S7P Battery Module with Immersion Cooling Under High Charging/Discharging C-Rates." Batteries 11, no. 2 (2025): 59. https://doi.org/10.3390/batteries11020059.

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In this study, the efficiency of an immersion cooling system for controlling the temperature of 5S7P battery modules at high charge and discharge C-rates was experimentally evaluated. The study was conducted in three main stages including the evaluation of different coolant oils followed by the proposition of an optimal volume flow rate (VFR) and cooling performance evaluation under high charging/discharging C-rates. In the first stage, three coolant oils, including Therminol D-12, Pitherm 150B, and BOT 2100, were compared. The Therminol D-12 achieved superior cooling performance, with the hig

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Kalidoss, P., S. Venkatachalapathy, and S. Suresh. "Optical and Thermal Properties of Therminol 55-TiO2 Nanofluids for Solar Energy Storage." International Journal of Photoenergy 2020 (January 22, 2020): 1–9. http://dx.doi.org/10.1155/2020/7085497.

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The present experimental study focuses on the energy storage performance of Therminol 55-TiO2 nanofluids for the absorption of solar energy. Photothermal conversion efficiency is enhanced using Fresnel lens and secondary reflectors with a glass-type evacuated absorber tube. The focal length of the Fresnel lens is 150 mm, and that of the secondary reflector is 70 mm. The optical absorbance, extinction coefficient, and thermal conductivity of nanofluids at 100, 250, 350, and 500 ppm are reported. The optical path length of the energy storage medium is 1 cm. The optical performance of the nanoflu

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Sabás, Ibor, Alexandre Miró, Jaume Piera, et al. "Factors of surface thermal variation in high-mountain lakes of the Pyrenees." PLOS ONE 16, no. 8 (2021): e0254702. http://dx.doi.org/10.1371/journal.pone.0254702.

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Thermal variables are crucial drivers of biological processes in lakes and ponds. In the current context of climate change, determining which factors better constrain their variation within lake districts become of paramount importance for understanding species distribution and their conservation. In this study, we describe the regional and short-term interannual variability in surface water temperature of high mountain lakes and ponds of the Pyrenees. And, we use mixed regression models to identify key environmental factors and to infer mean and maximum summer temperature, accumulated degree-

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9

Ilic-Popova, Srebra. "Climatic specifications of Ohrid area of vineyards." Journal of Agricultural Sciences, Belgrade 48, no. 2 (2003): 143–48. http://dx.doi.org/10.2298/jas0302143i.

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The purpose of the research is the examination of the climatic characteristics, indexes and coefficients in the Ohrid area of vineyards. In the region under study the average annual air temperature was 11.5?C, and the vegetative air temperature had a value of 16.7?C. The annual temperature sum was 4198?C, and ranged from 4033?C to 4524?C. The vegetative sum had a value of 3570?C, and it ranged from 3326?C to 3754?C. The annual rain sum was 665 mm, and ranged from 483 mm to 927 mm. The vegetative rain sum had a value of 342 mm, and ranged from 200 mm to 541mm. On the basis of the values of effe

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Khan, Muhammad Sajid, Muhammad Abid, Khuram Pervez Amber, Hafiz Muhammad Ali, Mi Yan, and Samina Javed. "Numerical Performance Investigation of Parabolic Dish Solar-Assisted Cogeneration Plant Using Different Heat Transfer Fluids." International Journal of Photoenergy 2021 (April 28, 2021): 1–15. http://dx.doi.org/10.1155/2021/5512679.

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Parabolic dish solar collectors gain higher solar to thermal conversion efficiency due to their maximum concentration ratio. The present research focuses by integrating the parabolic dish solar collector to the steam cycle producing power and rate of process heating. Pressurized water, therminol VP1, and supercritical carbon dioxide are the examined working fluids in the parabolic dish solar collector. The aim of the current research is to observe the optimal operating conditions for each heat transfer fluid by varying inlet temperature and flow rate of the working fluid in the parabolic dish

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Honus, Stanislav, Veronika Sassmanová, Jaroslav Frantík, Przemyslaw Bukowsk, and Dagmar Juchelková. "Energy Balance Sheet of a Semi Operational Thermic System." Chemical and Process Engineering 35, no. 3 (2014): 317–29. http://dx.doi.org/10.2478/cpe-2014-0024.

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Abstract The article is focused onthe energetical balance of a technical system for the conversion of crushed tyres by pyrolysis. Process temperatures were set in the range from 500 to 650°C. Mass input of the material was 30 kg per hour. The aim of the article is to answer the following questions as regards the individual products: Under which process conditions can the highest quality of the individual products related to energy be reached? How does the thermal efficiency of the system change in reaction to various conditions of the process? On the basis of the experimental measurements and

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Canto-Silva, C. R., H. P. Romanowski, and L. R. Redaelli. "Effect of temperature on the development and viability of Gryon gallardoi (Brethes) (Hymenoptera: Scelionidae) parasitizing Spartocera dentiventris (Berg) (Hemiptera: Coreidae) eggs." Brazilian Journal of Biology 65, no. 3 (2005): 415–21. http://dx.doi.org/10.1590/s1519-69842005000300006.

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The development and viability of Gryon gallardoi (Brethes) (Hym.: Scelionidae) in Spartocera dentiventris (Berg) (Hem.: Coreidae) eggs were studied under four temperatures: 15, 20, 25, and 30 ± 1ºC, with a 12-h photophase. No parasitoid developed at 15ºC. Otherwise, viability reached 98.8% without varying significantly over the temperature range tested. The duration of development for males and females was inversely proportional to the temperature increase, varying respectively from 46.2 ± 0.13 and 47.1 ± 0.11 days (20ºC) to 13.3 ± 0.07 and 13.4 ± 0.06 days (30ºC). Males developed faster than

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13

Ulianova, Alena Vladimirovna, and Marina O. Senina. "Influence of Additive’s Concentration on the Temperature Conditions for the Formation of the Solid Solutions of the System MgAl₂O₄-Ga₂O₃." Materials Science Forum 1037 (July 6, 2021): 135–40. http://dx.doi.org/10.4028/www.scientific.net/msf.1037.135.

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The production of a precursor of magnesium aluminate spinel (AMS) by thermic synthesis to obtain a material with high-performance properties is reviewed in the work. The temperature synthesis of AMS is determined, the introduction of the additive is described in the range of concentrations of 3, 5, and 7 mol.%. The current processes during the firing of products have been investigated with a view to the further selection of the firing mode of the ceramic samples, which can be obtained.

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Meyer, R. D., J. P. Edstrom, H. Schulbach, and J. Deng. "Long-term Effects of Nitrogen and Drip Irrigation Water Levels on Almond Yields." HortScience 32, no. 3 (1997): 545A—545. http://dx.doi.org/10.21273/hortsci.32.3.545a.

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Five rates of urea-N each at two water levels (0.6 & 1.0 ETc) were applied to three varieties (Butte, Carmel, and NonPareil) of almonds [Prunus dulcis (Mil) D. A. Webb] planted in 1981 on a 3.65 × 5.47-m spacing (550 trees/ha) on Arbuckle gravelly loam (Fine-loamy, mixed, thermic Typic Haploxeralf). Trees were drip-irrigated to basins (three per tree) ≈7 cm deep and 30 cm in diameter, located 76 and 183 cm on either side of the trees in the tree row. N rates ranged from 0–57, 0–198, 0–454, 113–907, 170–1361, 227–1814, 227–1814, 170–1361, 113–907, 113–907, 113–907, 0–907, 0–907 and 0–907 g

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15

Vitázek, I., and J. Havelka. "Drying medium – modelling and process evaluation ." Research in Agricultural Engineering 57, Special Issue (2011): S24—S29. http://dx.doi.org/10.17221/55/2010-rae.

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Natural gas is used as a heat source in the majority of modern drying plants in agriculture. The input gas is a mixture of natural gas and atmospheric air. With burning, the composition of this mixture changes. Drying medium is a mixture of hot combustion gases from natural gas and atmospheric air added. The thermic parameters of natural gas and atmospheric air are permanently constant. The authors present their method of the calculation of thermodynamic parameters of the drying medium. They elaborated two&nbsp;computer programmes in Q-Basic for the calculation related to the drying medium

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Samuels, Mary H., Irina Kolobova, Megan Antosik, Meike Niederhausen, Jonathan Q. Purnell, and Kathryn G. Schuff. "Thyroid Function Variation in the Normal Range, Energy Expenditure, and Body Composition in L-T4–Treated Subjects." Journal of Clinical Endocrinology & Metabolism 102, no. 7 (2017): 2533–42. http://dx.doi.org/10.1210/jc.2017-00224.

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Abstract Purpose: It is not clear whether upper limits of the thyrotropin (TSH) reference range should be lowered. This debate can be better informed by investigation of whether variations in thyroid function within the reference range have clinical effects. Thyroid hormone plays a critical role in determining energy expenditure, body mass, and body composition, and therefore clinically relevant variations in these parameters may occur across the normal range of thyroid function. Methods: This was a cross-sectional study of 140 otherwise healthy hypothyroid subjects receiving chronic replaceme

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17

Maricic, Aleksa, and Momcilo Ristic. "Corelation between the crystallisation process and change in thermoelectromotive force for the amorphous alloy Fe89.8Ni1.5Si5.2B3C0.5." Science of Sintering 35, no. 1 (2003): 31–36. http://dx.doi.org/10.2298/sos0301031m.

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Thermal and kinetic analyses of the structural changes for the amorphous alloy Fe89.8Ni1.5Si5.2B3C0.5, during the processes of non-isothermal heating and isothermal annealing, have been performed. The crystallisation process has been investigated using the method of differential scanning calorimetry (DSC). It is determined that this alloy crystalizes through three different stages. Changes in the electronic structure of the amorphous tape, for the temperature range 20 to 700?C have been studied. This was achieved by measuring the thermoelectromotive force (TEMS), of the thermo pair made of two

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18

Samuels, Mary H., Irina Kolobova, Meike Niederhausen, Jonathan Q. Purnell, and Kathryn G. Schuff. "Effects of Altering Levothyroxine Dose on Energy Expenditure and Body Composition in Subjects Treated With LT4." Journal of Clinical Endocrinology & Metabolism 103, no. 11 (2018): 4163–75. http://dx.doi.org/10.1210/jc.2018-01203.

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Abstract Background It is unclear whether variations in thyroid status within or near the reference range affect energy expenditure, body mass, or body composition. Methods 138 subjects treated with levothyroxine (LT4) for hypothyroidism with normal TSH levels underwent measurement of total, resting, and physical activity energy expenditure; thermic effect of food; substrate oxidation; dietary intake; and body composition. They were assigned to receive an unchanged, higher, or lower LT4 dose in randomized, double-blind fashion, targeting one of three TSH ranges (0.34 to 2.50, 2.51 to 5.60, or

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Habibullayev, Navruzbek N., Nikolay G. Naumov, Alexander N. Lavrov, et al. "Magnetic, Optical, and Thermic Properties of SrLnCuSe3 (Ln = Dy, Ho, Er, Tm) Compounds." Magnetochemistry 9, no. 8 (2023): 194. http://dx.doi.org/10.3390/magnetochemistry9080194.

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SrLnCuSe3 (Ln = Dy, Ho, Er, Tm) compounds crystallize in the Pnma and Cmcm orthorhombic space group and belong to the Eu2CuS3 and KCuZrS3 structural type, respectively. According to a single-crystal XRD study, the SrTmCuSe3 unit cell parameters are a = 4.0631 (4), b = 13.4544 (14), c = 10.4430 (10) Å, and V = 570.88 (10) Å3. All the studied SrLnCuSe3 samples in the temperature range of 1.77–300 K demonstrate paramagnetic behavior without any features pointing to magnetic ordering. The measured Curie constants coincide with the values expected for Ln3+ ions with good accuracy, which confirms th

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Stoicanescu, Maria, Aurel Crisan, Ioan Milosan, et al. "Heat Treatment of Steel 1.1730 with Concentrated Solar Energy." Materiale Plastice 56, no. 1 (2019): 261–70. http://dx.doi.org/10.37358/mp.19.1.5163.

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This paper presents and discusses research conducted with the purpose of developing the use of solar energy in the heat treatment of steels. For this, a vertical axis solar furnace called at Plataforma Solar de Almeria was adapted such as to allow control of the heating and cooling processes of samples made from 1.1730 steel. Thus temperature variation in pre-set points of the heated samples could be monitored in correlation with the working parameters: the level of solar radiation and implicitly the energy used the conditions of sample exposed to solar radiation, and the various protections a

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Boltovskoy, Esteban, Demetrio Boltovskoy, and Frederico Brandini. "Planktonic Foraminifera from southwestern Atlantic epipelagic waters: abundance, distribution and year-to-year variations." Journal of the Marine Biological Association of the United Kingdom 80, no. 2 (2000): 203–13. http://dx.doi.org/10.1017/s0025315499001794.

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The abundance and latitudinal and vertical (0-100 m) distribution of planktonic Foraminifera was investigated on the basis of 38 samples collected in November 1994 in the southwestern Atlantic Ocean (34-60°S, along 51-56°W). Mean foraminiferal densities were 1.5 ind. l−1 (range: 0.15.9 ind. l−1), with highest concentrations in subsurface waters (20-50 m). Couplings between the distribution of chlorophyll a and foraminiferal abundances were very loose. Distribution patterns of the 15 species recorded allowed 6 distinct areas to be defined along the transect surveyed. From north to south these a

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Góral, Marek, Tadeusz Kubaszek, Barbara Kościelniak, and Dorota Stawarz. "The Influence of Plasma Spraying Parameters on Microstructure and Porosity of Bronze-Polyester Coatings for Plain Bearings Applications." Solid State Phenomena 355 (February 15, 2024): 117–22. http://dx.doi.org/10.4028/p-fdcdp2.

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The plasma sprayed bronze coatings are widely used for repairing of plain bearing used in different applications. This type of coating was not deeply analyzed in state-of-art publications. In presented article we fill this gap in the case of plasma spraying process. The influence of power current (300/500/700A) and hydrogen flow (0/4/8 NLPM) on microstructure and thickness of aluminium bronze-polyester coating was investigated. The Thermico A60 plasma torch was used for thermal spray process of coating on flat carbon steel samples (grade S355). The Metco 604NS was sprayed with 20g/min powder f

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23

Uher, Anton. "The effect of the lenght of storage on the amount of lycopene in the fruits of tomato (Lycopersicon esculentum L.)." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 56, no. 2 (2008): 245–50. http://dx.doi.org/10.11118/actaun200856020245.

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We focused on tomatoes for industrial processing due to its economical importance for its lycopene content. The objective of our research is to find the variation of lycopene content in tomato fruits depending upon the length of after harvest storage and thermic treatment, which is inevitable when being industrialy processed. From the point of view of nutritional qualities the most relevant contentual substance of tomatos are carotenoids, included lycopene.At average for tree following experimental years we learnt significant differences regarding the content of lycopene and the length of stor

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24

Das, Likhan, Fazlay Rubbi, Khairul Habib, et al. "Insight into the Investigation of Diamond Nanoparticles Suspended Therminol®55 Nanofluids on Concentrated Photovoltaic/Thermal Solar Collector." Nanomaterials 12, no. 17 (2022): 2975. http://dx.doi.org/10.3390/nano12172975.

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Nanofluids are identified as advanced working fluids in the solar energy conversion field with superior heat transfer characteristics. This research work introduces carbon-based diamond nanomaterial and Therminol®55 oil-based nanofluids for implementation in a concentrated photovoltaic/thermal (CPV/T) solar collector. This study focuses on the experimental formulation, characterization of properties, and performance evaluation of the nanofluid-based CPV/T system. Thermo-physical (thermal conductivity, viscosity, and rheology), optical (UV-vis and FT-IR), and stability (Zeta potential) properti

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25

Rosillon, Dominique. "Food preference and relative influence of temperature and food quality on life history characteristics of a grazing mayfly, Ephemerella ignita (Poda)." Canadian Journal of Zoology 66, no. 6 (1988): 1474–81. http://dx.doi.org/10.1139/z88-214.

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In choice experiments, starved larvae of Ephemerella ignita (Poda) moved preferentially to compartments with a diatom-rich diet rather than to those with a detritus diet. Growth rate, mortality rate, larval developmental time, adult size, and fecundity of E. ignita were assessed in response to rearing on two diets (diatoms and detritus) at four constant temperatures (4.5 – 18 °C). On each diet, growth rate (range 0.30 – 6.2% length/d) increased with increasing temperature according to a power law (Y = axb). At any temperature, growth rate was significantly higher on the diatom diet than on the

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Rizea, Cristiana, Mihaela Bombos, Traian Juganaru, and Dorin Bombos. "The Influence of a Mesoporous Silica on Ru-Sn Catalyst Activity in the Hydrogenation of Methyl Oleate." Revista de Chimie 70, no. 8 (2019): 2786–90. http://dx.doi.org/10.37358/rc.19.8.7427.

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The hydrogenation of methyl oleate on a Ru-Sn catalyst deposited on Al-HMS was studied in comparison to that conducted on the same catalyst deposited on a conventional support, i.e. g-Al2O3. The catalyst was prepared by sequential impregnation. The distribution of the acid strength of the prepared catalysts was determined by thermic desorption of diethyl amine in the temperature range from 20 to 600�C. Experiments were carried out on a laboratory echipament using a fixed bed catalytic reactor at a temperature of 275�C, pressure of 100 atm with a methyl oleate volume flow rate (VHSV) of 0.15h-1

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TABATABAEI, SEYED YOUSEF, ALI BATENI, and SADEGH FIROOZI. "SYNTHESIS OF ULTRAFINE NICKEL-IRON POWDER BY THE MAGNESIUM REDUCTION IN GAS PHASE." International Journal of Modern Physics: Conference Series 05 (January 2012): 111–18. http://dx.doi.org/10.1142/s2010194512001912.

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Ultra fine metallic powders have an increasing application in magnetic materials, catalysts and chemical and metallic industries. In this research, magnesium-thermic reduction in gas phase was used to synthesize an ultra-fine nickel-iron intermetallic compound. Synthesis of nickel-iron submicron powder by metal chlorides and magnesium vapors was studied. Evaporation rate of the chlorides and magnesium in the range of 800 to 920 degrees Celsius was measured in order to control the composition of the resulting compound. The simultaneous reduction of the chlorides was done in a tubular furnace un

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Surakasi, Raviteja, Jaikumar Sagari, Krishna Bharath Vinjamuri, Bhanuteja Sanduru, and Srinivas Vadapalli. "Stability and Thermo-Physical Properties of Ethylene Glycol Based Nanofluids for Solar Thermal Applications." International Journal of Heat and Technology 39, no. 1 (2021): 137–44. http://dx.doi.org/10.18280/ijht.390114.

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This article summarizes research involving the evaluation of the thermo-physical properties of ethylene- glycol-based solar thermic fluids oxidized multi-walled carbon nanotubes. Nanofluids were prepared with Ethylene glycol and water as base fluids in 100:0, 90:10 and 80:20 ratios. Base fluids of three categories were dispersed with surfactant-assisted multi-walled carbon nanotubes (MWCNTs) and oxidized MWCNTs in the weight fractions of 0.125, 0.25, and 0.5 percentages to check the influence of surface modification technique on the thermophysical properties. The variation in zeta potential is

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Al-Oran, Otabeh, and Ferenc Lezsovits. "A Hybrid Nanofluid of Alumina and Tungsten Oxide for Performance Enhancement of a Parabolic Trough Collector under the Weather Conditions of Budapest." Applied Sciences 11, no. 11 (2021): 4946. http://dx.doi.org/10.3390/app11114946.

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Recently, there has been significant interest in the thermal performance of parabolic trough collectors. They are capable of operating and generating highly variable temperature ranges, which can be used in various applications. This paper, therefore, addressed the thermal performance model of using a parabolic trough collector under the radiation intensity level found in Budapest city, as well as the effect of inserting a hybrid nanofluid as the thermal fluid. First, a new modified hybrid nanofluid of alumina and tungsten oxide-based Therminol VP1 is used to enhance the thermal properties of

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Spaaij, Caroline J. K., Joop M. A. Van Raaij, Lidwien J. M. Van Der Heijden, et al. "No substantial reduction of the thermic effect of a meal during pregnancy in well-nourished Dutch women." British Journal of Nutrition 71, no. 3 (1994): 335–44. http://dx.doi.org/10.1079/bjn19940142.

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To investigate changes in the thermic effect of a meal (TEM) during pregnancy, metabolic rate was measured in the fasting state and during the first 180 min after consumption of a standardized test meal in twenty-seven women before, and in each trimester of pregnancy. Resting metabolic rate (RMR) showed a steady increase over pregnancy: values in weeks 24 and 35 of pregnancy were significantly higher than the prepregnancy baseline (Tukey's studentized range test). The pattern of changes of postprandial metabolic rate (PPMR) was similar to that of RMR. Consequently TEM, calculated as PPMR minus

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Miranda, Maristela Parra, Gentil Vanini de Moraes, Elias Nunes Martins, Luis Carlos Pinto Maia, and Orlando Rus Barbosa. "Thermic Variation in Incubation and Development of Pantanal Caiman (Caiman crocodilus yacare) (Daudin, 1802) Kept in Metabolic Box." Brazilian Archives of Biology and Technology 45, no. 3 (2002): 333–42. http://dx.doi.org/10.1590/s1516-89132002000300012.

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Thirty-two eggs of Pantanal caiman (Caiman crocodilus yacare) (Daudin, 1802) were incubated at 30° C. After 20 days of incubation at 30° C, the remaining eggs were distributed in the following way: seven at 34° C, seven at 32° C, six at 30° C and six at 28° C. At 32° C and 34° C a 100% hatchability was obtained while at 30° C 83.3% and at 28° C 66.6%. After hatching, the animals were kept for 120 days at the same temperature of their final incubation. Weight (g) control and morphometric (cm) analysis were carried out. The statistic design was totally randomized and the data were treated by reg

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Hosu, Ioana Silvia, Diana Constantinescu-Aruxandei, Florin Oancea, and Mihaela Doni. "The Scavenging Effect of Myoglobin from Meat Extracts toward Peroxynitrite Studied with a Flow Injection System Based on Electrochemical Reduction over a Screen-Printed Carbon Electrode Modified with Cobalt Phthalocyanine: Quantification and Kinetics." Biosensors 11, no. 7 (2021): 220. http://dx.doi.org/10.3390/bios11070220.

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The scavenging activity of myoglobin toward peroxynitrite (PON) was studied in meat extracts, using a new developed electrochemical method (based on cobalt phthalocyanine-modified screen-printed carbon electrode, SPCE/CoPc) and calculating kinetic parameters of PON decay (such as half-time and apparent rate constants). As reactive oxygen/nitrogen species (ROS/RNS) affect the food quality, the consumers can be negatively influenced. The discoloration, rancidity, and flavor of meat are altered in the presence of these species, such as PON. Our new highly thermically stable, cost-effective, rapid

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Pytel, Maciej, Tadeusz Kubaszek, Paweł Pędrak, Marek Góral, and Marcin Drajewicz. "The Influence of Process Parameters on Structure of YSZ Coating Deposited by Plasma Spraying on AISI 316L Stainless Steel Surface by APS Method and on Ti6Al4V Titanium Alloy Surface by PS-PVD Method." Materials Science Forum 1016 (January 2021): 1166–74. http://dx.doi.org/10.4028/www.scientific.net/msf.1016.1166.

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The plasma spraying is commonly used in medical application. The Atmospheric Plasma Spray (APS) method was applied for production of yttria-stabilized zirconia (YSZ) on AISI 316L stainless steel surface and also on Ti6Al4V titanium alloy surface. In present article two examples of coatings production were presented. In first experimental the YSZ was plasma sprayed (APS) on 316L stainless steel surface. The coating was deposited using A60 (Thermico) plasma torch. The initial parameters were selected and it was concluded that minimal power current was 500A. The thickness of obtained coating was

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ACOSTA, LUIS E., and ELIÁN L. GUERRERO. "Geographical distribution of Discocyrtus prospicuus (Arachnida: Opiliones: Gonyleptidae): Is there a pattern?" Zootaxa 3043, no. 1 (2011): 1. http://dx.doi.org/10.11646/zootaxa.3043.1.1.

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The environmental constraints determining the distribution of the harvestman Discocyrtus prospicuus in Argentina and Uruguay are addressed. Habitat observations across the entire range (Río de la Plata-Atlantic coast area; Córdoba sierras; northwestern Argentina) are provided. Previous published localities (verified for accuracy), new records and bioclimatic predictors were used to characterize the species bioclimatic profile and to build predictive distributional models with BIOCLIM and MAXENT algorithms. Relative importance of each bioclimatic variable in the final models is assessed. It was

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Ogueji, Chikezie, and Udochukwu Rita Ugwumba. "Corrosion Inhibition and Adsorption Behaviour of Centrosema pubescens Leaf Extract for Copper in HCl Solution." UMYU Scientifica 3, no. 4 (2024): 232–43. http://dx.doi.org/10.56919/usci.2434.018.

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Study’s Excerpt In this study, Centrosema pubescens leaf extract (CPE) has been confirmed as eco-friendly and efficient green inhibitor for copper corrosion in hydrochloric acid. Detailed thermodynamic analysis, revealed that CPE adsorption follows a Freundlich isotherm model. SEM-EDX and FTIR characterizations confirmed the formation of a protective layer confirming the potentials of the plant extracts in sustainable corrosion prevention. Full Abstract The anti-corrosion behaviour of Centrosema pubescens leaf extract (CPE) on copper in 1.5 M hydrochloric acid was investigated using weight los

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Adámek, Martin, Jiří Mlček, Anna Adámková, et al. "Is edible insect as a novel food digestible?" Potravinarstvo Slovak Journal of Food Sciences 13, no. 1 (2019): 470–76. http://dx.doi.org/10.5219/1088.

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This work deals with the digestibility of a selected species of edible insect - mealworm (larvae) as novel food in dependency on its culinary treatment. The aim of this work was to find suitable thermic culinary treatment of mealworm larvae considering its optimum digestibility by human. The digestibility of materials from whole insect and extracted nitrogenous substances was determined using three different culinary treatments - without culinary treatment (freshly killed), dried insect and roasted insect. The digestibility was determined by gravimetric in vitro method using pepsin and pancrea

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Selim, H. M., and H. Zhu. "Atrazine Sorption–Desorption Hysteresis by Sugarcane Mulch Residue." Journal of Environmental Quality 34, no. 1 (2005): 325–35. http://dx.doi.org/10.2134/jeq2005.0325a.

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ABSTRACTSorption and desorption kinetics are essential components for modeling the movement and retention of applied agricultural chemicals in soils and the fraction of chemicals susceptible to runoff. In this study, we investigated the retention characteristics of sugarcane (Saccharum spp. hybrid) mulch residue for atrazine (2‐chloro‐4‐ethylamino‐6‐isopropylamino‐1,3,5‐triazine) based on studies of sorption–desorption kinetics. A sorption kinetic batch method was used to quantify retention of the mulch residue for a wide range of atrazine concentrations and reaction times. Desorption was perf

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Mantovano, Tatiane, Leidiane Pereira Diniz, Louizi de Souza Magalhães Braghin, Claudia Costa Bonecker, Leilane T. F. Schwind, and Fábio A. Lansac-Tôha. "A thin temperature label reveals temporal changes in the zooplankton structure on a Neotropical floodplain." Fundamental and Applied Limnology / Archiv für Hydrobiologie 193, no. 2 (2019): 173–83. http://dx.doi.org/10.1127/fal/2019/1196.

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Temperature is a determinant factor for the distribution and structure of aquatic communities, as species have distinct ranges of thermic tolerance. Here we evaluated i) how does variation in water temperature affect the structure of the zooplankton community through time; and ii) what is the temperature threshold that alters the frequency and abundance of species. Zooplankton was sampled from 2000 to 2015 in six habitats of a Neotropical floodplain (22° 40' – 22° 50' S; 53° 10' – 53° 24' W) totaling 276 samples. We used a Threshold Indicator Taxa Analysis (TITAN) to answer our questions. We r

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Maury, Olivier, Didier Gascuel, Francis Marsac, Alain Fonteneau, and Anne-Laure De Rosa. "Hierarchical interpretation of nonlinear relationships linking yellowfin tuna (Thunnus albacares) distribution to the environment in the Atlantic Ocean." Canadian Journal of Fisheries and Aquatic Sciences 58, no. 3 (2001): 458–69. http://dx.doi.org/10.1139/f00-261.

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Using generalized additive models, we show evidence for nonlinear relationships between various hydrological factors and age-structured catch per unit effort of Atlantic yellowfin tuna (Thunnus albacares) for two fishing fleets. Catchability effects are distinguished from tuna environmental preference effects in the catch per unit effort variability. With respect to catchability, an important nonlinear effect of local fishing effort is highlighted for each fleet. It is interpreted as resulting from a local overfishing phenomenon of adult yellowfin tuna and from vessel fishing tactics (cooperat

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Gallerand, Lucie, Mathias Legrand, Thomas Dupont, and Philippe Leclaire. "Vibration of microperforated plate with spatial distribution of multiple-sized perforations." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 3 (2023): 5568–74. http://dx.doi.org/10.3397/in_2023_0790.

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Recent works by the authors on homogeneous MPPs have highlighted the structural damping capabilities of MPPs in the low frequency range. The developed theoretical approach was based on the analogy between an MPP and a porous plate. The added damping is due to visco-thermic effects coupled to fluid-structure interactions. The added damping maxes out at a characteristic frequency depending on perforation diameter. In order to reduce plate vibrations, it was advised to match the characteristic frequency to a plate mode. It is proposed here to maximize the added damping effect on several vibration

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ABBOUD-ABI SAAB, M. "Annual cycle of the microzooplankton communities in the waters surrounding the Palm Island Nature Reserve (north Lebanon), with special attention to tintinnids." Mediterranean Marine Science 3, no. 2 (2002): 55. http://dx.doi.org/10.12681/mms.248.

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The distribution, abundance and annual cycle of microzooplankton communities have been studied monthly at five sampling stations in the north Lebanon, covering both neritic and oceanic waters in the vicinity of small islands situated 5 km offshore.In general, the density of microprotozoans, except for ciliates, increased from the coastal towards the offshore area, with stations situated near the islands being similar to the offshore rather than to the coastal ones. The microprotozoan species showed their highest numbers in late autumn and early winter. Foraminifera abundance ranged from 20 to

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Ünal, Fatih, and Merve Acar. "Exergoeconomic analysis of a solar assisted organic Rankine cycle: Case study of Mardin, Turkey." Thermal Science, no. 00 (2024): 192. http://dx.doi.org/10.2298/tsci240311192u.

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Escalating concerns over dwindling energy resources and environmental issues from unsustainable use and external energy dependence highlight the need to optimize existing energy sources. Harnessing renewable energy is crucial for minimizing environmental impact and reducing reliance on external suppliers. Integrating renewable energy technologies into existing systems offers a promising path to sustainable and efficient energy use. This study presents a solar-assisted organic Rankine cycle system designed for Mardin Province, based on long-term solar radiation data. The system uses parabolic c

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Schuster, S., and S. Geier. "CircularWOOD – Towards Circularity in Timber Construction in the German Context." IOP Conference Series: Earth and Environmental Science 1078, no. 1 (2022): 012030. http://dx.doi.org/10.1088/1755-1315/1078/1/012030.

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Abstract The circular economy can pave the way to achieve ambitious sustainability goals. A major perpetrator of resource and material waste is the building sector. A lot of research results already provide innovative technologies and solutions for circular construction. However, what many of the circular economy initiatives in the construction sector have in common, is a certain malaise in moving from pilot projects with high individual engagement to actions on a larger scale. Prefabricated timber construction is one of the most promising key technologies towards a more resource efficient Eur

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ŞAHBUDAK, Kemal. "Mechanical and Thermal Evaluation of Diatomite Doped Fly Ash Based Geopolymers." Materials Science 28, no. 1 (2022): 75–81. http://dx.doi.org/10.5755/j02.ms.26796.

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In this work, the properties of alkali silicate geopolymer type materials and diatomite as additive to fly coal ash was investigated using thermic coal plant’s fly ash in alkaline solution. The reacted products of alumino-silicate geopolymers using fly ash plus diatomite were pseudo-amorphous aluminosilicate gel and calcite and their mechanical and thermal properties were evaluated by the addition of diatomite. The compressive strength of this geopolymer is similar to that of the Portland cement mortar of PC20 (± 20 %) when cured for 28 days while the density and thermal properties are much lo

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Toma, Margherita, Giorgio Bavestrello, Francesco Enrichetti, et al. "Mesophotic and Bathyal Echinoderms of the Italian Seas." Diversity 16, no. 12 (2024): 753. https://doi.org/10.3390/d16120753.

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Echinoderms are among the most charismatic megabenthic taxa in mesophotic and deep waters. However, they generally have a scattered distribution and are difficult to collect, especially on hardgrounds, so defining their abundance, distribution and ecological preferences is challenging. The largest available Italian remotely operated vehicle dataset, including 624 dives carried out between 2006 and 2022 in coastal and offshore areas in the depth range of 40–1825 m, was used to assess echinoderm diversity and large-scale geographic and bathymetric distributions. Thirty-nine taxa were identified,

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Ordóñez-Santos*, Luis E., Jessica Esparza-Estrada, and Pedro Vanegas-Mahecha. "Effect of Baking Temperature on Carotenoids and Provitamin A in Bread made with Mandarin (Citrus reticulata) Epicarp Extract." TecnoLógicas 26, no. 58 (2023): e2755. http://dx.doi.org/10.22430/22565337.2755.

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Consumers are interested in products with functional properties that contribute to their well-being and health. An alternative source of functional ingredients would be the by-products of the citrus industry, which can be used as natural additives in baked products. Therefore, the objective of this study was to evaluate the effect of temperature on the concentration of carotenoids and provitamin A when baking bread in a temperature range of 160-200 ºC. We studied the thermal degradation kinetics and thermodynamic parameters of the carotenoids β-carotene, α-carotene, β-cryptoxanthin, lycopene,

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Schuster, Sandra, and Sonja Geier. "CircularWOOD – Towards Circularity in Timber Construction in the German Context." IOP Conference Series: Earth and Environmental Science, no. 1078 (January 1, 2022): 012030. https://doi.org/10.5281/zenodo.7576607.

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The circular economy can pave the way to achieve ambitious sustainability goals. A major perpetrator of resource and material waste is the building sector. A lot of research results already provide innovative technologies and solutions for circular construction. However, what many of the circular economy initiatives in the construction sector have in common, is a certain malaise in moving from pilot projects with high individual engagement to actions on a larger scale. Prefabricated timber construction is one of the most promising key technologies towards a more resource efficient Europe. Desp

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CAVALLARI, R. V., N. B. DE LIMA, J. C. M. SILVA, V. S. BERGAMASHI, and J. C. FERREIRA. "PREPARATION OF CATALYST SUPPORT FROM BIO CARBON." Periódico Tchê Química 15, no. 30 (2018): 115–26. http://dx.doi.org/10.52571/ptq.v15.n30.2018.118_periodico30_pgs_115_126.pdf.

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The overuse of non-renewables resources in the last decades has generated negative consequences for the society, which have boosting the search for mitigating the damage caused in the environment. Aiming to contribute to the expansion of the strategies to control the pollutants in the environment thought the development of low-cost technologies, the mean goal of present work is to develop active materials with high thermic resistance and suitable specific area to adsorption and impregnation of metals. In this regard, it was studied three different routes of treatment of the biocarbons. The bio

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Elena, R., F. Sánchez, A. Rubio, et al. "Autoecology of beech woodstands in Catalonia (Spain)." Forest Systems 10, no. 1 (2001): 21–42. http://dx.doi.org/10.5424/709.

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This study was carried out after field sampling and analysis of 24 beechwood stand plots selected by means of a beech distribution area stratification system based on CLATERES Land Classification. At each sampling plot, 3 physiographic, 15 climatic and 18 edaphic parameter values were measured, allowing us to define central and marginal parameter ranges, which were used for drawing landform, climatic and soil habitat diagrams of beech (Fagus sylvatica L.) woodstands in Catalonia [N.E. Spain]. Such diagrams show that most of the Catalonian beech stands are located on soils developed from a seri

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Caccamo, Maria T., and Antonio Cannuli. "PEG Acoustic Levitation Treatment for Historic Wood Preservation Investigated by Means of FTIR Spectroscopy and Wavelets." Current Chemical Biology 13, no. 1 (2019): 60–72. http://dx.doi.org/10.2174/2212796812666180511115839.

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Background: The combination of Fourier Transform InfraRed and levitation techniques, both on levitated water mixtures of Polyethylene Glycols (PEG)s and on wood finds, allows to follow the polymeric drying process as a function of time through the O-H and C-H stretching contributions and to investigate the wood thermal response. Objective: The aim of this paper is to report the FTIR investigations on wood fines, extracted from a 700’ dated wooden crucifix. Methods: At first, different acoustically levitated Polyethylene Glycol (PEG) aqueous solutions were investigated by FTIR in order to chara

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