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Artigos de revistas sobre o tema "Protection against summer overheating"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 14 de fevereiro de 2022

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1

Kisilewicz, Tomasz. "On the Role of External Walls in the Reduction of Energy Demand and the Mitigation of Human Thermal Discomfort." Sustainability 11, no. 4 (2019): 1061. http://dx.doi.org/10.3390/su11041061.

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The structure and thermal properties of external walls affect both the thermal conditions inside the building and the energy demand. This applies to the energy requirement for heating as well as cooling. While the relationship between thermal insulation and heating is well-known, the effect of thermal insulation on overheating is not evident. One can find opinions that thick thermal insulation creates a “thermos effect” and significantly deteriorates the comfort conditions during the summer. In order to prove these statements, an office room with south-oriented glazing and a high thermal load

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Vitvitskaya, E. V., and D. V. Tarasevich. "CHANGES IN LIGHTING STANDARDS AND THEIR INFLUENCE ON THE ARCHITECTURE AND ENERGY EFFICIENCY OF MODERN RESIDENTIAL BUILDINGS." Bulletin of Odessa State Academy of Civil Engineering and Architecture, no. 81 (December 7, 2020): 9–17. http://dx.doi.org/10.31650/2415-377x-2020-81-9-17.

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Abstract. State regulations on the design of lighting in residential buildings in recent years have undergone significant changes, which in turn will significantly affect the architecture and energy efficiency of modern buildings of this type. This can be observed from the authors' analysis of the change in only one regulatory document given in this article – SCS (State Construction Standards) V.2.5-28: «Natural and artificial lighting» and only one lighting indicator: permissible deviation of the calculated value of CNL (coefficient of natural lighting) from the standardized value when choosi

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3

Kerekes, A., Cs Rácz, and A. Cs Dobos. "Prevention of summer overheating of buildings with added convex windows." International Review of Applied Sciences and Engineering 9, no. 1 (2018): 41–48. http://dx.doi.org/10.1556/1848.2018.9.1.6.

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When renovating an existing building, keeping the original window and installing added convex window is beneficial for the reduction of heating energy demand. This solution is free of the disposal and/or recycling of demolition waste. In the summer season as far as the transparent structures of the building are concerned, in general, heat protection has to be used. In the case of the added convex window, it can be provided by the external air curtain mode; the movable shading device is in the buffer zone. This is a well-protected place for it, so that it can be as simple and cheap as an inner

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Bochkarev, Igor, Ivan Bryakin, Vadim Khramshin, and Aida Sandybaeva. "Development of Protection Systems Against Overheating of AC Electric Motors." Electrotechnical Systems and Complexes, no. 3(48) (September 28, 2020): 41–51. http://dx.doi.org/10.18503/2311-8318-2020-3(48)-41-51.

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Petrou, Giorgos, Phil Symonds, Anna Mavrogianni, Anastasia Mylona, and Mike Davies. "The summer indoor temperatures of the English housing stock: Exploring the influence of dwelling and household characteristics." Building Services Engineering Research and Technology 40, no. 4 (2019): 492–511. http://dx.doi.org/10.1177/0143624419847621.

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As the high temperatures experienced during the summer of 2018 may become commonplace by 2050, adaptation to higher indoor temperatures while minimising the need for mechanical cooling is required. A thorough understanding of the factors that influence indoor temperatures can enable the design of healthier and safer dwellings under a warming climate. The aim of this paper is to provide further insight into the topic of indoor overheating through the analysis of the largest recent sample of English dwellings, the 2011 Energy Follow-Up Survey, comprised of 823 dwellings. Following the pre-proces

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6

Belsare, Karan S., and Gajanan D. Patil. "Advance Protection for Three Phase Induction Motor using Microcontroller Atmega32." International Journal of Advanced Research in Computer Science and Software Engineering 8, no. 1 (2018): 172. http://dx.doi.org/10.23956/ijarcsse.v8i1.566.

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A low cost and reliable protection scheme has been designed for a three phase induction motor against unbalance voltages, under voltage, over voltage, short circuit and overheating protection. Taking the cost factor into consideration the design has been proposed using microcontroller Atmega32, MOSFETs, relays, small CTs and PTs. However the sensitivity of the protection scheme has been not compromised. The design has been tested online in the laboratory for small motors and the same can be implemented for larger motors by replacing the i-v converters and relays of suitable ratings.

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7

Belsare, Karan S., and Gajanan D. Patil. "Advance Protection for Three Phase Induction Motor using Microcontroller Atmega32." International Journal of Advanced Research in Computer Science and Software Engineering 8, no. 2 (2018): 30. http://dx.doi.org/10.23956/ijarcsse.v8i2.572.

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A low cost and reliable protection scheme has been designed for a three phase induction motor against unbalance voltages, under voltage, over voltage, short circuit and overheating protection. Taking the cost factor into consideration the design has been proposed using microcontroller Atmega32, MOSFETs, relays, small CTs and PTs. However the sensitivity of the protection scheme has been not compromised. The design has been tested online in the laboratory for small motors and the same can be implemented for larger motors by replacing the i-v converters and relays of suitable ratings.

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8

Gouda, O. E., G. M. Amer, and W. A. A. Salem. "A Study of K- Factor Power Transformer Characteristics by Modeling Simulation." Engineering, Technology & Applied Science Research 1, no. 5 (2011): 114–20. http://dx.doi.org/10.48084/etasr.59.

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Harmonic currents generated by nonlinear loads can cause overheating and premature failure in power transformers. K-factor transformers are specially designed to accommodate harmonic currents and offer protection against overheating caused by harmonics. They minimize harmonic current loss and have an additional thermal capacity of known limits. According to IEEE C57-110, the winding eddy current losses are considered proportional to the harmonic current squared times its harmonic number. K-factor is only an indicative value and the authors' main objective in this paper is to study the effect o

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9

Juras, Peter. "Lightweight timber-framed wall and impact of ventilated cladding on the possibility of reducing summer overheating in Central Europe." E3S Web of Conferences 172 (2020): 03009. http://dx.doi.org/10.1051/e3sconf/202017203009.

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The climate change creates specific problems in the countries, where it was not so hot during the summer periods in the past. In the area of building envelopes, use of more environmental friendly materials comes to the foreground. Having still more strictly requirements in the thermal protection of buildings, use of lightweight wooden walls is increasing. The ratio between load carrying and insulating parts changed. This is also the advantage of timber framed walls. These walls have also some negatives, or create some problems, such as low thermal capacity. In the Central Europe, the indoor su

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10

Majewski, Karol, and Sławomir Grądziel. "CFD simulations of heat transfer in internally helically ribbed tubes." Chemical and Process Engineering 37, no. 2 (2016): 251–60. http://dx.doi.org/10.1515/cpe-2016-0020.

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Abstract Heating surfaces in power boilers are exposed to very high heat flux. For evaporator protection against overheating, internally helically ribbed tubes are used. The intensification of the heat transfer and the maintenance of the thin water layer in the intercostal space, using ribbed tubes, enables better protection of the power boiler evaporator than smooth pipes. Extended inner surface changes flow and thermal conditions by influencing the linear pressure drop and heat transfer coefficient. This paper presents equations that are used to determine the heat transfer coefficient. The r

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11

Ross, J. F., C. I. Terry, and B. C. Webb. "A new method for protection against electrical overheating using a sacrificial coating and a CHEMFET gas sensor." Journal of Physics E: Scientific Instruments 19, no. 7 (1986): 536–40. http://dx.doi.org/10.1088/0022-3735/19/7/007.

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Horn, Valéria V., Annamária Dudás, and Anita Terjék. "The Role of Façades in Solar Energy Utilization." Buildings 10, no. 11 (2020): 209. http://dx.doi.org/10.3390/buildings10110209.

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During the summer, the environmental impact of building operations can be reduced by optimizing ventilation and preventing heat from entering the building. Shades are used to create a comfortable temperature state in interiors without operating mechanical equipment or using low-power systems. The most significant factor in reducing energy consumption would be if the spatial delimitation of buildings utilizes solar energy in a passive or active way. At the same time, limiting the energy entering through windows reduces the temperature of interiors and the amount of energy used for cooling; thus

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13

Ogunseye, Abiodun, and Olamide Omolara Olusanya. "Design and Simulation of a Microcontroller Based Loudspeaker Protection System Against Amplifier Direct Current (D.C) Offsets." Journal of Communications Technology, Electronics and Computer Science 8 (November 3, 2016): 12. http://dx.doi.org/10.22385/jctecs.v8i0.122.

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A number of failure mechanisms can result in the damage of loudspeakers that are directly connected to an audio power amplifier system. One of such failure modes occurs when the amplifier circuit develops an output d.c voltage, in which case, the loudspeaker coil will be damaged by overheating. D.c offset detection circuits, usually based on simple transistor circuits are normally used to protect the loudspeaker against this failure mode. However, as effective as they are, these circuits can fail in ways that can result in loudspeaker damage. In this work, a microcontroller based circuit that

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14

Tonkoshkur, A. S., and A. V. Ivanchenko. "Using a layer based on materials with a metal to semiconductor phase transition for electrothermal protection of solar cells." Технология и конструирование в электронной аппаратуре, no. 3-4 (2021): 57–64. http://dx.doi.org/10.15222/tkea2021.3-4.57.

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One of the main problems in ensuring the reliability of solar electrical power sources is local overheating, when hot spots form in photovoltaic cells of solar arrays. It is currently considered that these negative phenomena are caused, among other things, by overvoltage in the electrical circuits of solar arrays. This leads to the appearance of defective elements and a significant decrease in the functionality of the entire power generation system up to its complete failure. This study considers the possible ways to increase the reliability of solar arrays by using thermistor thermocontacting

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15

Vidua, Raghvendra K., Vivek K. Chouksey, Daideepya C. Bhargava, and Jitendra Kumar. "Problems arising from PPE when worn for long periods." Medico-Legal Journal 88, no. 1_suppl (2020): 47–49. http://dx.doi.org/10.1177/0025817220935880.

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In the context of Covid-19, personal protective equipment is much needed and often in short supply as a protection against the virus, but nobody until recently was discussing the downside of its prolonged use by its wearers. Increasing numbers of health care workers feel unwell using it and are overheating and some have fainted. Will it impair their professional performance? This article considers this aspect of PPE based upon the personal experience of a Forensic team at AIIMS Bhopal in India who wore it during autopsy work and proposed recommendations to minimise it.

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16

Evangelisti, Luca, Claudia Guattari, Gianluca Grazieschi, Marta Roncone, and Francesco Asdrubali. "On the Energy Performance of an Innovative Green Roof in the Mediterranean Climate." Energies 13, no. 19 (2020): 5163. http://dx.doi.org/10.3390/en13195163.

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Green roofs have a thermal insulating effect known since ancient times. In the building sector, green roofs represent a sustainable passive solution to obtain energy savings, both during winter and summer. Moreover, they are a natural barrier against noise pollution, reducing sound reflections, and they contribute to clean air and biodiversity in urban areas. In this research, a roof-lawn system was studied through a long experimental campaign. Heat-flow meters, air and surface temperature sensors were used in two buildings characterized by different surrounding conditions, geometries and orie

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17

Costa Oliveira, Ana Claudia, G. Donato, R. Magnabosco, et al. "Analysis of the Metallurgical Bonding between Inconel and NiCrAlY Coatings by HVOF and with CO₂ Laser Beam." Materials Science Forum 869 (August 2016): 727–31. http://dx.doi.org/10.4028/www.scientific.net/msf.869.727.

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Coatings are applied on turbine blades’ surfaces to provide protection not only against high temperature but also against aggressive environment. Ceramic coatings are employed to avoid metallic substrate overheating, while at the same time increasing turbine work temperature and performance. A bond coat (BC) base of particulate material based on Ni-Al powders is necessary to assure oxidation protection, a good adhesion and gradual decrease in thermal expansion coefficient between the blades’ metallic substrate and the ceramic top coating. One of the most important parameters of such coatings i

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18

Josse, G., J. Le Digabel, and E. Questel. "Protection against summer solar lentigo over‐pigmentation with a SPF 30 daily cream." Skin Research and Technology 24, no. 3 (2018): 485–89. http://dx.doi.org/10.1111/srt.12458.

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19

Šagát, Erik, Libor Matějka, and Jan Pěnčík. "Experimental Assessment of the Influence of Outlet Geometry on the Airflow and Temperatures in the Ventilated Façade Cavity." Applied Mechanics and Materials 824 (January 2016): 641–48. http://dx.doi.org/10.4028/www.scientific.net/amm.824.641.

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Ventilated façades help to protect buildings against overheating during the summer seasons. The efficiency of this function depends on many factors. The geometry of inlet and outlet openings may be the significant factor of the ventilated façade function. This study presents the experimental assessment of the outlet geometry influence on the temperatures and airflow in the open joint ventilated façade. Two sections with different outlet geometry are compared in the same time. Different types of outlet geometry are based on various window sill dimensions and various cross section dimensions

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20

Lassandro, Paola, and Teresa Cosola. "Climate change mitigation: resilience indicators for roof solutions." International Journal of Disaster Resilience in the Built Environment 9, no. 1 (2018): 4–17. http://dx.doi.org/10.1108/ijdrbe-11-2016-0046.

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Purpose This paper aims to increase the resilience of building systems, especially roofs, in relation to climate changes. The focus is on Mediterranean cities, where, often, there is no regulation about these issues. Therefore, it is necessary to define resilience indicators through comparative studies of adaptive roof solutions to mitigate overheating in summer. Design/methodology/approach Through software simulations and data comparison, a specific methodological approach is used to analyze the resilience levels of different roof solutions (phase change materials, aerogel, green and cool roo

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21

Oliva, Jonàs, Magnus Thor, and Jan Stenlid. "Long-term effects of mechanized stump treatment against Heterobasidion annosum root rot in Picea abies." Canadian Journal of Forest Research 40, no. 6 (2010): 1020–33. http://dx.doi.org/10.1139/x10-051.

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Airborne Heterobasidion annosum (Fr.) Bref. sensu lato infections can be controlled by winter thinning or by mechanically spreading urea or Phlebiopsis gigantea (Fr.) Jülich spores on stump surfaces during summer thinning operations. The long-term outcomes of these control methods when applied as part of the conventional forest operations are unclear. We studied the rot incidence and population structure of H. annosum in plots of Picea abies (L.) Karst. thinned in winter or thinned in summer with and without treatment of the stumps. Plots were distributed among 11 stands in Sweden representing

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22

Šagát, Erik, and Libor Matějka. "Experimental Assessment of the Influence of Wind Speed on the Airflow and Temperatures in the Open Joint Ventilated Façade Cavity." Applied Mechanics and Materials 835 (May 2016): 444–49. http://dx.doi.org/10.4028/www.scientific.net/amm.835.444.

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Ventilated façades help to ventilate the humidity out of buildings constructions and also help to protect interiors against overheating during the summer seasons. The efficiency of the ventilated façade construction depends on a design of the ventilated cavity and a cladding type. The air flowing around the façade construction may influence the air velocity in the ventilated cavity. This study presents the experimental assessment of the wind influence on the cavity air velocity in the different designed ventilated cavities. The experimental assessment is based on two sections of ventilated

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23

Calama-González, Carmen, Rafael Suárez, Ángel León-Rodríguez, and Simone Ferrari. "Assessment of Indoor Environmental Quality for Retrofitting Classrooms with An Egg-Crate Shading Device in A Hot Climate." Sustainability 11, no. 4 (2019): 1078. http://dx.doi.org/10.3390/su11041078.

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In the Mediterranean climate, a large number of educational buildings suffer from discomfort due mostly to energy-deficient thermal envelopes and a lack of cooling systems. Impending climate change is expected to worsen overheating in classrooms, especially during heatwave periods. Therefore, the protection of window openings to reduce incident solar radiation while maintaining adequate indoor environmental quality must be considered a necessary key focus. The main objective of this research is to assess the influence of an egg-crate shading device on the indoor environmental quality of a clas

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NOVOZHILOV, Timofey A., Alexander N. NOVOZHILOV, and Dilara M. RAKHIMBERDINOVA. "Energy Expenditures in a High-Voltage Three-Phase AC Superconducting Cable." Elektrichestvo 5, no. 5 (2021): 33–38. http://dx.doi.org/10.24160/0013-5380-2021-5-33-38.

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Protection against short circuits between buses tubes in short networks of ore-thermal furnaces is provided by means of electrical insulation. Failure of the insulation leads to an arc, and then to the complete destruction of the expensive bus tube package. Disconnection fault in the elements of a short network cause overheating of undamaged elements. Currently, emergency modes of operation of a short network are determined with indirect signs. It is impossible to use current protection for this purpose because of the existing restrictions on the number of current transformers and the place fo

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Munné-Bosch, Sergi, Karin Schwarz та Leonor Alegre. "α-Tocopherol Protection Against Drought-Induced Damage In Rosmarinus Officinalis L. And Melissa Officinalis L." Zeitschrift für Naturforschung C 54, № 9-10 (1999): 698–703. http://dx.doi.org/10.1515/znc-1999-9-1013.

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Summer diurnal variations of photosynthesis and α-tocopherol content were measured in relation to natural drought in field-grown rosemary (Rosmarinus officinalis L.) and lemon balm (Melissa officinalis L.) plants. During the summer relative water contents (RWC) of ca. 40% in Rosmarinus officinalis and ca. 30% in Melissa officinalis were attained, indicating severe drought. Both species showed similar diurnal patterns of net CO2 assimilation rates (A) with a wide plateau of maximum photosynthesis at midday in the absence of drought and one peak of maximum photosynthesis early in the morning und

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Urban, L., R. Brun, and P. Pyrrha. "Water Relations of Leaves of `Sonia' Rose Plants Grown in Soilless Greenhouse Conditions." HortScience 29, no. 6 (1994): 627–30. http://dx.doi.org/10.21273/hortsci.29.6.627.

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Rose plants (Rosa hybrids cv. Sonia) were grown in rockwool in two heated greenhouses: one with relative humidity (RH) control (RH >70%) provided by high-pressure mist, the other protected against overheating using a movable screen without RH control. Two electrical conductivity (EC) rates were applied: high (EC of drainage water ≈ 3.8 mS·cm-1) and low (EC of drainage water ≈1.8 mS·cm-1). Under these conditions, water deficit in plants was due mainly to climate, and not to EC. The relative water content of sample leaves picked at noon (RWCnoon) was one to two percentage points higher in the

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Hou, Jiunn-Yan, Wei-Li Lin, Nean Lee, and Yao-Chien Alex Chang. "The Residual Effect of 1-Methylcyclopropene on Protecting Phalaenopsis Flowers against Ethylene Injury." HortScience 47, no. 10 (2012): 1484–89. http://dx.doi.org/10.21273/hortsci.47.10.1484.

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Phalaenopsis flowers are prone to wilting under ethylene (C2H4) stress. 1-Methylcyclopropene (1-MCP) can protect Phalaenopsis flowers against ethylene injury. In this study, we determined the residual effect of 1-MCP and how it is affected by temperature. The efficacy of multiple applications of 1-MCP was also investigated. The residual effect of 1-MCP was determined by pretreating blooming Phalaenopsis amabilis plants with 0.8 μL·L−1 1-MCP for 8 hours on Day 0 followed by 2 μL·L−1 ethylene fumigation for 12 hours on designated days. Without 1-MCP pretreatment, flowers began to wilt within 2 d

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Dudzińska, Anna. "Efficiency of Solar Shading Devices to Improve Thermal Comfort in a Sports Hall." Energies 14, no. 12 (2021): 3535. http://dx.doi.org/10.3390/en14123535.

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Thermal environment in sports facilities is probably one of the most important parameters, determining the safety and performance of athletes. Such facilities, due to the required operating temperature and physical activity of users, are a serious challenge for both investors and administrators, especially in summer. The additional criterion of low energy consumption in extremely airtight and well-insulated passive buildings often results in overheating of the interior, creating considerable economic and operational problems. The significant need to reduce solar gain during periods of high out

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S.N., Vladimirov. "Architectural and planning solutions in the construction of industrial and civil buildings in the south of Russia." Ekologiya i stroitelstvo 2 (2015): 13–18. http://dx.doi.org/10.35688/2413-8452-2015-02-003.

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The article discusses the design and construction of industrial facilities and civil buildings in hot and dry climate on the territory of The South of Russia. In the design of buildings in these areas must consider the flow of heat radiation from the Sun, especially in summer. When you create a comfortable environment in these regions the preference is for air conditioning and ventilation. To achieve comfort, it is important to reduce the number of Windows and skylights. To avoid overheating, it is necessary to have knowledge about the characteristics of building materials. Choice of construct

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Weyr, Jan, Richard Kalný, and Jiří Hirš. "Impact of IPPC Scenarios on indoor environment quality of historic buildings." E3S Web of Conferences 111 (2019): 03054. http://dx.doi.org/10.1051/e3sconf/201911103054.

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Ensuring proper indoor environment quality in buildings with historic value or buildings located in historic centres of cities is not an easy task. These buildings are frequently listed in historic preservation lists; thus, the amount of possible refurbishment methods is significantly limited due to increased protection. This article deals with comprehensive analysis of internal microclimate of a multi-purpose building located in the historic centre of Prague during summer period. Possible refurbishment methods permitted by the National Heritage Institute are analysed and compared using buildi

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Березин, Константин, Konstantin Berezin, Валерия Колесар, et al. "INFLUENCE OF FUNGICIDES APPLICATION FOR WINTER WHEAT HARVEST FORMATION IN TATARSTAN." Vestnik of Kazan State Agrarian University 12, no. 3 (2018): 5–9. http://dx.doi.org/10.12737/article_5a1fe7abc99be6.85983142.

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The effect of the use of various fungicides for seed treatment, autumn and summer spraying was studied. The use of Vial Trast seed protectant for seeds treatment in combination with the autumn treatment of benzimidazole fungicides (Benorad, Ferazym) ensures an increase in the preservation of plants for harvesting. The most effective control of leaf diseases is achieved by combining seed treatment with autumn and summer treatment with fungicides. The maximum yield of winter wheat was achieved with the use of complete protection against diseases.

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Serkova, Margarita I., Elena I. Sivkova, and Olga A. Fedorova. "Analysis of methods of protection of farm animals against midges (review)." Veterinaria Kubani, no. 3 (July 27, 2020): 19–22. http://dx.doi.org/10.33861/2071-8020-2020-3-19-22.

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One of the urgent tasks for the successful development of animal husbandry in the country is the elimination of the harm caused by blood-sucking diptera insects - hematophages and carriers of pathogens of a number of diseases dangerous to humans and animals, and the development of comprehensive measures to protect animals from them. In summertime the negative impact renders midges which consist of 4 families of blood-sucking insects - gadflies (Tabanidae), mosquitoes (Culicidae), midges (Simuliidae) and wood lice (Ceratopogonidae), and their almost universal distribution is very closely connec

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Mohammed, Nabil, Kumeresan A. Danapalasingam, and Ahmed Majed. "Design, Control and Monitoring of an Offline Mobile Battery Energy Storage System for a Typical Malaysian Household Load Using PLC." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 1 (2018): 180. http://dx.doi.org/10.11591/ijpeds.v9.i1.pp180-188.

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Battery energy storage system (BESS) is used in many practical applications including uninterruptible power supplies (UPS), portable devices, electrical vehicles and renewable energy systems. To utilize BESS effectively, an efficient control operation is required. Various controllers have been introduced in the open literature. However, they are not considered the best fit due to their limitations. This includes their incapability of handling high-power rating BESS, low noise immunity, short life cycle and limited number of input and output interfaces. In this paper, the programmable logic con

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Nemec, Patrik. "Design of a Heat Exchanger Made of Gravity Heat Pipes with an Enlarged Heat Exchange Surface for Heat Dissipation from the Electrical Cabinet." MATEC Web of Conferences 328 (2020): 01012. http://dx.doi.org/10.1051/matecconf/202032801012.

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Due to the great progress in the electronics industry, heat management in electronic components is becoming a serious and important problem. Cooling of electronic components ensures a lower occurrence of failure of elements, longer service life of the device, protection against overheating of elements, further prevents malfunction of the device and loss of heat. In many cases, heat dissipation by natural convection is often insufficient. Heat dissipation by forced convection is effective, but it carries the risk of clogging the interior of the electrical cabinet with dust, which can negatively

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Gandon, Luiz Fernando Martins, Renato Ribeiro Nogueira Ferraz, Luc Quoniam, and David Reymond. "Utilização de informações patentárias na busca de soluções inovadoras para prevenção de doenças respiratórias no setor de mineração." Revista de Administração da UFSM 13, no. 3 (2020): 587–601. http://dx.doi.org/10.5902/1983465928836.

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Brazil ranks 4th in the world for occupational accidents. There are more than 700 thousand occurrences per year, which cost the country about R$10 billion. The objective of this study is to identify technologies, related to the prevention of occupational accidents and diseases, that are not protected in Brazil. We used Patent2net, a computational data mining tool, to evaluate worldwide patents deposited in the Espacenet database. Employing a technometric research approach, a Patent2net case study was carried out by analyzing over 1,600 occupational safety and/or occupational disease patents de

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Kvashnin, V. D., D. I. Derbenev, I. I. Suleimanova, D. S. Yakovlev, M. A. Ivanov, and P. A. Danilkin. "An effective method of protection of oil field pipes inner surface." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 77, no. 1 (2021): 46–54. http://dx.doi.org/10.32339/0135-5910-2021-1-46-54.

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Corrosion is a key factor, effecting service life of field pipelines. A review of methods of protection of circle welding seam internal surfaces and adjacent end pipe areas presented in the paper, as well as their imperfections, a technology proposed to protect them by arc building-up corrosion-resistant coating. With the elaborated technology the pipe metal does not get considerable overheating, retaining correspondent level of mechanical properties. The properly selected parameters of building-up mode provide a minimal stirring in the process of building-up and the decrease of concentration

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Kurtz, Courtney C., Susanne L. Lindell, Martin J. Mangino, and Hannah V. Carey. "Hibernation confers resistance to intestinal ischemia-reperfusion injury." American Journal of Physiology-Gastrointestinal and Liver Physiology 291, no. 5 (2006): G895—G901. http://dx.doi.org/10.1152/ajpgi.00155.2006.

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The damaging effects of intestinal ischemia-reperfusion (I/R) on the gut and remote organs can be attenuated by subjecting the intestine to a prior, less severe I/R insult, a process known as preconditioning. Because intestines of hibernating ground squirrels experience repeated cycles of hypoperfusion and reperfusion, we examined whether hibernation serves as a model for natural preconditioning against I/R-induced injury. We induced intestinal I/R in either the entire gut or in isolated intestinal loops using rats, summer ground squirrels, and hibernating squirrels during natural interbout ar

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Fiodorova, O. A., E. I. Sivkova, and M. I. Serkova. "The impact of cow keeping technologies on milk production of cows and their protection against midges in summer." Ukrainian Journal of Ecology 10, no. 3 (2020): 6–11. http://dx.doi.org/10.15421/2020_1258.

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Data are presented on the average daily milk yield of cows during the mass abundance of horseflies, mosquitoes and midges depending on the technology of keeping animals in the Tyumen region. Keeping the cows during this period without grazing on the walking grounds at the farm is one of the methods of preserving their milk productivity. During the period of mass flight of gnats, the milk productivity of cattle grazing in forest pastures is significantly reduced. Loss of milk during this period is 13.68%, while the longer the harmful effects of the vulture, the more significant these losses.

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Abdelwanis, Mohamed I., Fatallah Selim, and Ragab Abdel-Aziz El-Sehiemy. "An Efficient Sensorless Slip Dependent Thermal Motor Protection Schemes Applied to Submersible Pumps." International Journal of Engineering Research in Africa 14 (March 2015): 75–86. http://dx.doi.org/10.4028/www.scientific.net/jera.14.75.

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This paper proposes a sensorless procedure to estimate the induction motor speed and the dependable heat contents of the stator and rotor sides. The proposed procedure is based on the electrical models of a three phase Induction Motor (IM). The motor electrical models for normal and abnormal will be discussed and a technique is introduced for accommodating frequency dependent skin effect of the rotor resistance using a simple proposed speed estimation algorithm. The electrical models are customized from the positive and negative sequence networks. The speed detection is based on the rotor para

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Ivanchenko, A. V., S. V. Mazurik, and A. S. Tonkoshkur. "Investigation into the characteristics of silicon photovoltaic converters of solar batteries in case of overheating." Технология и конструирование в электронной аппаратуре, no. 4 (2018): 14–20. http://dx.doi.org/10.15222/tkea2018.4.14.

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Recently, solar panels have become one of the most desirable sources of renewable electrical energy, and thus the requirements for their reliability, in particular to maintain the basic functional properties at elevated temperatures, are increasing. The basic element of solar batteries is photovoltaic converter. Until now, the degree of degradation and ways to protect photovoltaic converters during overheating corresponding to real situations during their exploitation, are not sufficiently studied. In this paper, the authors study one of the important problems arising during the development of

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Smulko, Janusz, Marek Olesz, Lech Hasse, Leszek Kaczmarek, and Grzegorz Lentka. "Problems of Varistor Quality Assessment During Exploitation." Metrology and Measurement Systems 19, no. 2 (2012): 395–404. http://dx.doi.org/10.2478/v10178-012-0034-7.

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Problems of Varistor Quality Assessment During Exploitation Varistors are commonly used elements which protect power supply networks against high-voltage surges or lightning. Therefore, quality and endurance of these elements is important to avoid losses when an expensive laboratory equipment would not be protected from random overvoltages. Additionally, excessive leakage currents generate serious costs due to high energy consumption. The paper presents shortly properties of varistors that comprized different ZnO grain types and can have various quality which changes continuously during exploi

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Schütz, Karin E., Andrea R. Rogers, Neil R. Cox, and Cassandra B. Tucker. "Dairy cows prefer shade that offers greater protection against solar radiation in summer: Shade use, behaviour, and body temperature." Applied Animal Behaviour Science 116, no. 1 (2009): 28–34. http://dx.doi.org/10.1016/j.applanim.2008.07.005.

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Cox, Brian D., Margaret J. Whichelow, and A. Toby Prevost. "Seasonal consumption of salad vegetables and fresh fruit in relation to the development of cardiovascular disease and cancer." Public Health Nutrition 3, no. 1 (2000): 19–29. http://dx.doi.org/10.1017/s1368980000000045.

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AbstractObjectiveTo investigate the protective association between seasonality of consumption of fresh fruit or salad vegetables and cancer and cardiovascular disease (CVD) development.Design and settingFace-to-face interviews, including a food frequency questionnaire, were conducted on 1489 men and 1900 women, aged 35–75 years, who were respondents in the British Health and Lifestyle Survey 1984/85 (HALS1). CVD and cancer morbidity and mortality were determined from the 1991/92 British Health and Lifestyle Survey (HALS2) and by NHS Register ‘flagging’.ResultsRisk was assessed by odds ratio (O

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Ninkovic, M. M. "Radiation protection in the world and in former Yugoslavia and Serbia and Montenegro since discovering of the x-rays to nowadays." Facta universitatis - series: Physics, Chemistry and Technology 4, no. 1 (2006): 121–32. http://dx.doi.org/10.2298/fupct0601121n.

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Harmful effects of radiation and call for protection against it were recognized practically immidiatly upon the discovery of X-rays and radioactivity. A chronological review of some key events in development of radiation protection is given in this paper. First, the main activities of the ICRP since its establishment to nowadays are presented. Afterwards, a general description of some, according to the author's opinion, important events in the field of radiation protection in the former Yugoslavia and Serbia and Montenegro are given as: Vinca accident; Organization of Radiation Protection Labo

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Likhtei, Ihor. "An Invasion by the Czech Ruler Přemysl Otakar II Against Bavaria in the Summer of 1257." Mìžnarodnì zv’âzki Ukraïni: naukovì pošuki ì znahìdki, no. 29 (November 10, 2020): 166–80. http://dx.doi.org/10.15407/mzu2020.29.166.

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The article covers the background and course of the invasion by the Czech ruler Přemysl Otakar II against the possession of the Duke of Bavaria Henry XIII Wittelsbach in order to regain his control over certain territories in the country’s west. Besides, Přemysl Otakar II sought to assist indirectly his cousin, the Archbishop of Salzburg, Philip of Spanheim, who was a skilled warrior but a poor spiritual prince. That was why the chapter elected the new Archbishop of Salzburg Ulrich von Kirchberg. However, Philipp Spanheim did not intend to give up his benefit so easily and started a war agains

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AALTONEN, T. M., E. T. VALTONEN, and E. I. JOKINEN. "Humoral response of roach (Rutilus rutilus) to digenean Rhipidocotyle fennica infection." Parasitology 114, no. 3 (1997): 285–91. http://dx.doi.org/10.1017/s0031182096008499.

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The humoral immune response of roach (Rutilus rutilus) to cercariae of the digenean trematode, Rhipidocotyle fennica, was studied. Antibodies against R. fennica were found in wild roach in lakes where fish are infected by the parasite. Antibody levels were higher in sera collected in September than in sera collected in June, due to infection of R. fennica during the late summer. In experimental aquarium studies, roach immunized with homogenized cercariae produced antibodies against R. fennica. An especially strong response was elicited by infecting fish with living cercariae emerging from infe

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Kallio, Eva R., Michael Begon, Heikki Henttonen, et al. "Hantavirus infections in fluctuating host populations: the role of maternal antibodies." Proceedings of the Royal Society B: Biological Sciences 277, no. 1701 (2010): 3783–91. http://dx.doi.org/10.1098/rspb.2010.1022.

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Infected females may transfer maternal antibodies (MatAbs) to their offspring, which may then be transiently protected against infections the mother has encountered. However, the role of maternal protection in infectious disease dynamics in wildlife has largely been neglected. Here, we investigate the effects of Puumala hantavirus (PUUV)-specific MatAbs on PUUV dynamics, using 7 years' data from a cyclic bank vole population in Finland. For the first time to our knowledge, we partition seropositivity data from a natural population into separate dynamic patterns for MatAbs and infection. The li

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VLASENKO, Viktoriia, Svitlana ARABULI, Valentyna KUCHERENKO, Arsenii ARABULI, Petro SMERTENKO, and Natalia LEVYTSKA. "DESIGN OF TEXTILE UV-SHIELDS BY VAT DYES MODIFICATION." TEXTEH Proceedings 2019 (November 5, 2019): 59–62. http://dx.doi.org/10.35530/tt.2019.13.

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The problem of human being protecting against UV radiation is becoming more and more significant from year to year and requires urgent solutions. Just UVB causes 50-90% of skin cancer and especially affects children, adolescents and older people. Textile screens are the simplest and most effective means to protect against the negative effects of UV radiation (UVR). Usually, white cotton and linen fabrics are used for summer clothes. However, these materials have a low ultraviolet protective factor (UPF ~ 5). Known developments that relate to the modification of textile materials to protect aga

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Van_Toor, R. F., C. Till, D. E. James, and D. A. J. Teulon. "Evaluation of UV reflective mulches for protection against thrips (Thrips tabaci) in onion (Allium cepa) crops." New Zealand Plant Protection 57 (August 1, 2004): 209–13. http://dx.doi.org/10.30843/nzpp.2004.57.6912.

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The efficacy of the ultraviolet (UV) reflective plastic mulch Extenday for preventing onion thrips (Thrips tabaci) from colonising onions was evaluated The mulch reflected 35 of incident UV at 250 nm wavelength and 25 of incident UV at 360 nm while bare soil reflected 11 and 4 UV at these wavelengths respectively In a field trial the total number of thrips at 8 weeks after transplanting was lower with mulch (185 thrips/ bulb) than in the control (280 thrips/bulb) However thrips populations were similar for both treatments in subsequent assessments When onions in seedling trays were placed adja

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Smirnoff, W. A. "FIELD TESTS OF A HIGHLY CONCENTRATED FORMULATION OF BACILLUS THURINGIENSIS AGAINST SPRUCE BUDWORM (CHORISTONEURA FUMIFERANA; LEPIDOPTERA: TORTRICIDAE)." Canadian Entomologist 117, no. 7 (1985): 877–81. http://dx.doi.org/10.4039/ent117877-7.

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AbstractDuring the summer of 1982, aerial experimental sprayings were carried out with a new formula of Bacillus thuringiensis named Futura®. This formula provided a treatment of the 20 × 109 IU of B. thuringiensis/ha required for suppression of spruce budworm (Choristoneura fumiferana), in a final volume of 2.5 L/ha. Results of spraying with Grumman AgCat and DC-4G aircraft are presented. These results were compared with those obtained with formulas of B. thuringiensis used in the past at 4.7 L/ha. Futura® caused 91.1 and 88.7% larval mortality and resulted in 86.6 and 75.1% foliage protectio

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