Добірка наукової літератури з теми "Stressed state"

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Статті в журналах з теми "Stressed state"

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Kovshar, S. N., P. V. Ryabchikov, and S. V. Gushchin. "Assessment of Thermally Stressed State of Concrete Massif." Science & Technique 20, no. 3 (June 3, 2021): 207–15. http://dx.doi.org/10.21122/2227-1031-2021-20-3-207-215.

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The paper describes a technique for assessing the thermally stressed state of a concrete massif of a foundation slab made of a self-compacting concrete mixture. The proposed method consists in a preliminary calculation of temperature fields in hardening concrete. The objects of research have been self-compacting concrete mix and structural concrete in the structure mass. The choice of materials for the preparation of a concrete mixture is given and substantiated. The composition of self-compacting concrete has been used to assess the thermally stressed state. A binder with a reduced exotherm has been used in order to reduce the self-heating of concrete. Studies have been carried out to assess the specific heat release of the recommended cement depending on the initial water-cement ratio. The effect of a chemical additive on the rate and magnitude of the specific heat release of cement has been studied. The paper presents the main theoretical provisions and an algorithm for calculating the thermal stress state of a concrete massif. The finite difference method has been used to calculate the expected temperatures and their distribution in the structure mass, and the temperature stresses in the sections of the concrete mass have been calculated to assess the thermally stressed state. The performed calculations of the temperature fields have made it possible to estimate the maximum possible temperatures and temperature differences over the sections of the concrete massif depending on the initial temperature of the concrete mixture and the average daily temperature of the outside air. Analysis of the temperature distribution has revealed the most dangerous sections of the concrete mass. An assessment of the thermal stress state of the concrete mass has been made on the basis of the results pertaining to calculation of temperature fields. The calculation of temperature stresses in the most dangerous sections of the concrete massif has been performed. It is shown that the calculated value of the temperature stress can serve as a characteristic of the thermally stressed state of the concrete mass. The formation of temperature cracks in a concrete mass is possible when the calculated value of the temperature stress exceeds the actual tensile strength of concrete. Comparison of the calculated and actual values of temperatures in the sections of the foundation slab has made it possible to conclude that the calculations of the temperature fields and, as a consequence, possible temperature deformations are correct.
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2

Savruk, M. P., and A. Kazberuk. "Distribution of stresses near V-shaped notches in the complex stressed state." Materials Science 47, no. 4 (January 2012): 476–87. http://dx.doi.org/10.1007/s11003-012-9419-8.

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3

Klimov, S. "Stressed state of webbed framing joints with diagonal element." Transactions of the Krylov State Research Centre S-I, no. 2 (December 28, 2020): 41–46. http://dx.doi.org/10.24937/2542-2324-2020-2-s-i-41-46.

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In most of cases, webbed beams of ship grillages intersect at the right angle. The intersections at arbitrary angle lead to structural and technological challenges, whereas the welds too close to each other bring about high stress concentrations and high welding stresses. Beam intersections at sharp angles are hard to weld. This paper discusses the beam joint with diagonal element suggested and patented by the authors, as well as the results of stressed-state study for this joint.
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Makhnenko, O. V., I. V. Mirzov, and V. B. Porokhonko. "Modelling of residual stresses, radiation swelling and stressed state of in-service WWER-1000 reactor baffle." Paton Welding Journal 2016, no. 4 (April 28, 2016): 32–38. http://dx.doi.org/10.15407/tpwj2016.04.03.

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5

Troshchenko, V. T. "Fatigue of metals under nonuniform stressed state. Part 1. Stressed state assessment methods and results of investigation." Strength of Materials 42, no. 2 (March 2010): 129–43. http://dx.doi.org/10.1007/s11223-010-9200-x.

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Chursin, A. I., E. A. Nartova, P. M. Chebotarev, and A. A. Melentyev. "Agrarian landscape ecological regional assignment of middle Volga." IOP Conference Series: Earth and Environmental Science 981, no. 3 (February 1, 2022): 032039. http://dx.doi.org/10.1088/1755-1315/981/3/032039.

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Abstract Based on modern data of environmental information, an assessment of agricultural landscape ecological state in Middle Volga was made, the state of which is unsatisfactory, this is due to assessments of land prevailing types ecological state in natural agricultural zones: in broad-leaved forest zone, the crisis-stressed state of agricultural landscape is distinctive(including arable land - heavy, natural forage lands - intense-heavy, forest - from intense to crisis; radioactive contamination - up to 10% of zone territory); - in the forest-steppe zone, a crisis-stressed state is distinctive (including arable land - stressed-heavy, - stressed, forest - crisis; radioactive contamination - up to 2 - 3% of zone territory); natural forage lands; - in the steppe zone, the state of agricultural landscape is characterized by stressed-heavy state (including arable land - stressed-heavy, natural dryforage lands - stressed, natural forage lands, floodplain and lowland - good and satisfactory, forest - crisis); - in the dry steppe zone, the state of agricultural landscape is characterized by stressed-heavy state (including arable land - stressed-heavy, natural dry forage lands - stressed, natural forage lands, floodplain and lowland - good and satisfactory, forests - stressed); - in semi-desert and desert zones, the state of agricultural landscape is crisis-stressed (including arable land - a crisis, natural forage lands - stressed, forests - stressed).
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Savenko, V. I., and E. K. Shchukin. "Residual stresses occurring in elastoplastic materials deformed in active media (uniaxial stressed state)." Soviet Materials Science 23, no. 2 (1987): 212–14. http://dx.doi.org/10.1007/bf00718149.

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Muratikov, K. L., A. L. Glazov, D. N. Rose, and J. E. Dumar. "Photoacoustics of the stressed state in solids." Review of Scientific Instruments 74, no. 7 (July 2003): 3531–35. http://dx.doi.org/10.1063/1.1581358.

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Zhitnyaya, V. G. "Stationary stressed state of an elliptical cylinder." Journal of Mathematical Sciences 101, no. 6 (October 2000): 3675–79. http://dx.doi.org/10.1007/bf02674057.

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Shevlyakov, Yu A., and V. N. Tishchenko. "Stressed state near cracks in elastic media." Journal of Soviet Mathematics 65, no. 2 (1993): 1491–94. http://dx.doi.org/10.1007/bf01097649.

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Дисертації з теми "Stressed state"

1

Paquin, Normand. "Electron transport in uniaxially stressed silicon MOSFETs." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.257213.

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2

Hadzhiyski, Vilhelm, and Zviatko Atanasov. "Investigation of stressed state of elastic element of elastic clutch from three ply reinforced polymer material." TUDpress - Verlag der Wissenschaften GmbH, 2012. https://tud.qucosa.de/id/qucosa%3A30531.

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The use of composite materials in engineering practice and in particular nonmetallic composite materials in the preparation of elastic couplings (clutches) requires modeling of their mechanical behavior. The production of elastic couplings with a elastic element having reinforced polymer materials require studying the behavior of those materials for loads which are typical for their operation. In many modern structures of elastic clutches are used multilayer reinforced composites. This kind of materials are composed of separate layers with different orientation of reinforcing fibers. Several authors have studied the behavior of this type of laminated materials (Yongming L. 2005, Zhang Y.X., 2009). Factors,which determine the stress and deformation state of this type of elastic elements are: — structure and mechanical characteristics — matrix and reinforced material — connection between matrix and reinforced material — orientation of reinforcement. The aim of this paper is to investigate stress and strain state of elastic element of coupling, creating a model for determination of the state of threelayers nonmetallic material for manufacturing of nonmetallic elastic elements.
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Hadzhiyski, Vilhelm, and Zviatko Atanasov. "Investigation of stressed state of elastic element of elastic clutch from three ply reinforced polymer material." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-228801.

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The use of composite materials in engineering practice and in particular nonmetallic composite materials in the preparation of elastic couplings (clutches) requires modeling of their mechanical behavior. The production of elastic couplings with a elastic element having reinforced polymer materials require studying the behavior of those materials for loads which are typical for their operation. In many modern structures of elastic clutches are used multilayer reinforced composites. This kind of materials are composed of separate layers with different orientation of reinforcing fibers. Several authors have studied the behavior of this type of laminated materials (Yongming L. 2005, Zhang Y.X., 2009). Factors,which determine the stress and deformation state of this type of elastic elements are: — structure and mechanical characteristics — matrix and reinforced material — connection between matrix and reinforced material — orientation of reinforcement. The aim of this paper is to investigate stress and strain state of elastic element of coupling, creating a model for determination of the state of threelayers nonmetallic material for manufacturing of nonmetallic elastic elements.
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4

Andreev, A. A., S. N. Grigorev, O. V. Sobol, M. A. Volosova, V. A. Stolbovoy, and V. Ye Filchikov. "Structural-phase and Strained State of Vacuum-ARC Mo-N Coatings." Thesis, Сумський державний університет, 2012. http://essuir.sumdu.edu.ua/handle/123456789/34806.

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The effect of substrate bias on the structural-phase and elastic stress-strained state during the formation of vacuum-arc deposited nanostructural coatings of the Mo–N system has been studied. An increase in the bias potential leads to (i) predominant [111] orientation of the growing molybdenum nitride crystals with a NaCl-type cubic lattice (γ-Mo2N phase) and (ii) the appearance of a second phase with a body-centered cubic crystal lattice that is characteristic of pure molybdenum. The elastically strained (stressed) state of the coating is determined not only by the conditions of deposition, but also by the mechanical properties of a substrate. In order to provide for formation of coatings in a high-elastic-strained (stressed) state, it is necessary to deposit coatings onto substrates with high elastic modulus, which prevent metal flow at the interface. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34806
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5

Váša, Jiří. "Návrh přemostění komunikace." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392093.

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The diploma thesis deals with the design of the motorway bridge over the II / 464 road between Butovice-Bílovec. For the bridging design four variants were made, from which a variant of the slab with longitudinal extensions was selected for further processing. The design assessment was performed for the ultimate limit state and serviceability limit state according to valid standards. Determination of internal forces was performed on the model developed in Scia Engineer 18.0.
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6

Matuška, Vojtěch. "Porovnání variant nádrže ČOV z železobetonu a z předpjatého betonu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409800.

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The diploma thesis deals with design and comparison of variants of cast-in-place concrete sewage tank made from reinforced concrete and pre-stressed concrete. The layout of sewage tank is rectangular. The tank is in longitudinal way divided into two chambers. The tank is not roofed and is partialy embedded in the ground. The design for ultimate limit state and for service limit state is made for both variants. There is focus on generation and development of cracks in service limit state. For calcuation of internal forces is used model made in software SCIA Engineer, based on finite element method. The reinforced concrete and pre-stressed concrete versions are compared in last part in term of volumes of materials needed. Also there are proposed possible savings.
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Arnett, Sarah B. "Fiscal Stress in the U.S. States: An Analysis of Measures and Responses." Digital Archive @ GSU, 2012. http://digitalarchive.gsu.edu/pmap_diss/38.

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Fiscal stress is an important and recurring problem that states face. Research to date on state fiscal stress involves, predominantly, cross-sectional and case study analyses and does not address the effectiveness of state responses. Many of these studies use different definitions and measures of fiscal stress compounding the difficulty of comparing fiscal stress findings. The present research effort adds to the fiscal stress literature by (1) clarifying the meaning of fiscal stress in the state context, (2) developing a measure of fiscal stress that operationalizes this meaning and is comparable across units, and 3) using this measure analyzes patterns in and the effectiveness of state responses. Fiscal stress is measured using four indexes: budget, cash, long-run, service-level. Eleven financial indicators, calculated using data from state Comprehensive Annual Financial Reports (CAFRs), are used to create these indexes for all fifty states for the years 2002-2009. Descriptive analysis compares state fiscal stress levels (grouped into low, moderate, and high fiscal stress by cluster analysis) to state economic growth rates, state responses, and institutional factors yielding several findings. First, states do not use an incremental or punctuated equilibrium strategy in responding to fiscal stress; nor do their responses follow the pattern predicted by Cutback Management theory. Second, institutional factors affect both the levels of fiscal stress and state responses to fiscal stress. Regression analysis supports and extends these findings. First, short-term responses of expenditure cuts, tax increases, and rainy day fund use do not affect state fiscal stress levels. Second, these responses have long-term effects on fiscal stress levels. A major implication of this research is that there is very little states can do in the short-term to reduce fiscal stress. However, by balancing expenditures and revenues states can set themselves up to weather the next economic downturn with lower levels of fiscal stress.
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Svoboda, Tomáš. "Most přes údolí potoka Kyselá voda." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227255.

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The subject of the diploma thesis is the design of the ghrinder bridge over the Kyselá voda brook valley. The main topic is static calculation of supporting construction of six span structure. Two studies were executed and the second option, pre-stressed girder bridge was chosen. The lenght of the spans is 27 + 6 x 35 + 27 m. Static model and effect of loading are solved in software Scia Engineer. Reviews are calculated by hand according to current standards.
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9

Navrátil, Tomáš. "Most přes Knovízský potok." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240311.

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The subject of the diploma thesis is the design of the ghrinder bridge over the Knovízský potok brook valley. The main topic is static calculation of supporting construction of five span structure. Three studies were executed and one of them, pre-stressed girder bridge was chosen. The langht of the spans is 27 + 3 x 32 + 27 m. Static model and effect of loading are solved in software Scia Engineer. Reviews are caltulated by hand according to current standards.
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10

Arnett, Sarah. "Fiscal stress in the U.S. states: an analysis of measures and responses." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42860.

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Fiscal stress is an important and recurring problem that states face. Research to date on state fiscal stress involves, predominantly, cross-sectional and case study analyses and does not address the effectiveness of state responses. Many of these studies use different definitions and measures of fiscal stress compounding the difficulty of comparing fiscal stress findings. The present research effort adds to the fiscal stress literature by (1) clarifying the meaning of fiscal stress in the state context, (2) developing a measure of fiscal stress that operationalizes this meaning and is comparable across units, and 3) using this measure analyzes patterns in and the effectiveness of state responses. Fiscal stress is measured using four indexes: budget, cash, long-run, service-level. Eleven financial indicators, calculated using data from state Comprehensive Annual Financial Reports (CAFRs), are used to create these indexes for all fifty states for the years 2002-2009. Descriptive analysis compares state fiscal stress levels (grouped into low, moderate, and high fiscal stress by cluster analysis) to state economic growth rates, state responses, and institutional factors yielding several findings. First, states do not use an incremental or punctuated equilibrium strategy in responding to fiscal stress; nor do their responses follow the pattern predicted by Cutback Management theory. Second, institutional factors affect both the levels of fiscal stress and state responses to fiscal stress. Regression analysis supports and extends these findings. First, short-term responses of expenditure cuts, tax increases, and rainy day fund use do not affect state fiscal stress levels. Second, these responses have long-term effects on fiscal stress levels. A major implication of this research is that there is very little states can do in the short-term to reduce fiscal stress. However, by balancing expenditures and revenues states can set themselves up to weather the next economic downturn with lower levels of fiscal stress.
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Книги з теми "Stressed state"

1

Crews, John H. An analysis of fiber-matrix interface failure stresses for a range of ply stress states. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1993.

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2

Crews, John H. An analysis of fiber-matrix interface failure stresses for a range of ply stress states. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1993.

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3

Kitaev-Smyk, L. A. Organizm i stress: Stress zhizni i stress smerti. Moskva: Smysl, 2012.

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4

C, Cooper Stephen, ed. Visual mechanics: Beams & stress states. Boston: PWS Pub. Co., 1998.

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5

1945-, Plowden F. J., ed. The state under stress: Can the hollow state be good government? Buckingham: Open University Press, 1996.

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6

Kolupaev, Vladimir A. Equivalent Stress Concept for Limit State Analysis. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73049-3.

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Curran, Dolores. Stress and the healthy family: How healthy families control the ten most common stresses. Minneapolis, Minn: Winston Press, 1985.

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Stress and the healthy family: How healthy families handle the ten most common stresses. San Francisco: Perennial Library, 1987.

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9

Stress and the healthy family: How healthy families control the ten most common stresses. San Francisco, Calif: Harper & Row, 1987.

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10

Curran, Dolores. Stress and the healthy family: How healthy families handle the ten most common stresses. Minneapolis, MN: Winston Press, 1985.

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Частини книг з теми "Stressed state"

1

Molotnikov, Valentin, and Antonina Molotnikova. "Stressed State in a Body Point." In Theory of Elasticity and Plasticity, 69–75. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-66622-4_7.

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2

Nicolaysen, S., Mariya G. Ganchenkova, and Risto M. Nieminen. "Formation of Vacancies and Divacancies in Plane-Stressed Silicon." In Solid State Phenomena, 433–38. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/3-908451-13-2.433.

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3

Tushinsky, Leonid I., Iliya Kovensky, Alexandr Plokhov, Victor Sindeyev, and Peter Reshedko. "Breaking Strength and Stressed State of Base Metal-Coating Composition." In Coated Metal, 397–438. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-06276-0_8.

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4

Kapustyan, V. E., and A. I. Kirichenko. "Contactless Measurement of Stressed Deformed State of Structures Under Diagnosis." In Computational Mechanics ’95, 146–51. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79654-8_24.

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Kurennov, S. S., A. G. Poliakov, K. P. Barakhov, and D. V. Dvoretska. "The Nonuniform in Width Stressed State of the Lap Adhesive Joint." In Integrated Computer Technologies in Mechanical Engineering, 75–85. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37618-5_7.

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Semenov, Kirill, Maxim Kukolev, Ernest Ivanov, Aleksandra Makeeva, Sergej Manovitskij, and Aleksey Kuleshin. "Thermal Stressed State at Temperature Variations While Concreting for Hydraulic Structures." In Lecture Notes in Civil Engineering, 259–67. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67654-4_29.

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Popovych, Vasyl. "Methods for Determination of the Thermo-stressed State of Thermosensitive Solids Under Complex Heat Exchange Conditions." In Encyclopedia of Thermal Stresses, 2997–3008. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-2739-7_617.

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Petr, Fomichev, Zarutskiy Anatoliy, and Lyovin Anatoliy. "Researches of the Stressed-Deformed State of the Power Structures of the Plane." In Systems, Decision and Control in Energy I, 37–49. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-48583-2_3.

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Isaeva, Oksana, Yuri Boronenko, Maria Soboleva, and Vladimir Zelensky. "Determination of the Stressed State of a Person by the Method of Pupillography." In Human Interaction, Emerging Technologies and Future Systems V, 938–45. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85540-6_119.

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Kudish, I. I., A. S. Vasiliev, S. S. Volkov, and S. M. Aizikovich. "Subsurface Stressed State of Functionally Graded Elastic Solids Involved in Dry Axially Symmetric Contacts." In Dynamical Processes in Generalized Continua and Structures, 359–77. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-11665-1_20.

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Тези доповідей конференцій з теми "Stressed state"

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Wang, Chuanying, Zengqian Han, Yiteng Wang, and Jinchao Wang. "Borehole deformation under a stressed state and in situ stress measurement." In Eighth International Conference on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2017. http://dx.doi.org/10.36487/acg_rep/1704_14_wang.

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Kaledin, Valeriy, Tatyana Burnysheva, and Olga Shteinbreher. "Modeling of stressed deformed state of lattice anisogrid constructions." In IV International research conference "Information technologies in Science, Management, Social sphere and Medicine" (ITSMSSM 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/itsmssm-17.2017.35.

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Strelnikov, V. N., and M. G. Sukov. "STRESSED STATE OF HEAVY-DUTY HARMONIC GEAR DRIVE FLEXSPLINE." In International Conference "Aviamechanical engineering and transport" (AVENT 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/avent-18.2018.76.

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Pankratova, Nataliya D. "Thermo-Stressed State of Anisotropic Non-Homogeneous Constructive Elements." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0535.

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Abstract On the basis of the developed approach to solution of problems of the thermo-stressed state of hollow thick-walled bodies with taking into account arbitrary variability of material properties through their thickness, different modes of layers conjugations, types of boundary conditions on all limited surfaces and forms of loading according to elasticity theory the influence of non-homogeneity and anisotropy of elastic properties of materials at the stress level an deformabiity of laminated bodies in the form of a cylinder, cone, sphere or plate is studied.
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5

Duane, R., A. Concannon, D. McCarthy, and A. Mathewson. "Inverse Modelling of Trapped Charge in Hot-Carrier Stressed nMOSFET." In 30th European Solid-State Device Research Conference. IEEE, 2000. http://dx.doi.org/10.1109/essderc.2000.194791.

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6

Wang, H., G. Han, Y. Liu, C. Zhang, J. Zhang, and Y. Hao. "Performance Improvement in Uniaxially Tensile Stressed GeSn FinTFET Investigated by Simulation: Impact of Stress Direction." In 2016 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2016. http://dx.doi.org/10.7567/ssdm.2016.a-6-02.

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7

Baigalimaa, Tserensangi, and Bultger Tumendemberel. "Investigation of stressed state of component for mining lifting structure." In 2012 7th International Forum on Strategic Technology (IFOST). IEEE, 2012. http://dx.doi.org/10.1109/ifost.2012.6357704.

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Nigirich, Y. B., and I. P. Olegin. "Stressed state analysis in the stratified bodies containing ellipsoidal cavities." In 2007 International Forum on Strategic Technology. IEEE, 2007. http://dx.doi.org/10.1109/ifost.2007.4798535.

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9

Kemmer, Tobias, Michael Dammann, Martina Baeumler, Vladimir Polyakov, Peter Bruckner, Helmer Konstanzer, Rudiger Quay, and Oliver Ambacher. "Failure Analysis of 100 nm AlGaN/GaN HEMTs Stressed under On- and Off-State Stress." In 2020 IEEE International Reliability Physics Symposium (IRPS). IEEE, 2020. http://dx.doi.org/10.1109/irps45951.2020.9128308.

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10

Zhuravleva, Olga. "REVEAL OF INTERRELATIONSHIP BETWEEN STRESS STATE AND SEISMIC ACTIVITY IN THE TECTONIC STRESSED ROCK MASS." In 17th International Multidisciplinary Scientific GeoConference SGEM2017. Stef92 Technology, 2017. http://dx.doi.org/10.5593/sgem2017/13/s03.098.

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Звіти організацій з теми "Stressed state"

1

El Halawani, Mohamed, and Israel Rozenboim. Temperature Stress and Turkey Reproduction. United States Department of Agriculture, May 2002. http://dx.doi.org/10.32747/2002.7570546.bard.

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High temperature stress is of major concern to turkey producers in Israel and the United States. The decline in the rate of egg production at high environmental temperature is well recognized, but the neuroendocrinological basis is not understood. Our objectives were: 1) to characterize the hypothalamo-hypophyseal axis involvement in the mechanism(s) underlying the detrimental effect of heat stress on reproduction, and 2) to establish procedures that alleviate the damaging effect of heat stress on reproduction. Heat stress (40oC, Israel; 32oC, U.S.) caused significant reduction in egg production, which was restored by VIP immunoneutralization. The decline in egg production did not appear to be entirely related to the expression of incubation behavior due to the rise in circulating PRL in stressed birds. Heat stress was found to increase circulating PRL in ovariectomized turkeys independent of the reproductive stage. Active immunization against VIP was shown for the first time to up-regulate LHb and FSHb subunit mRNA contents. These findings taken together with the results that the heat stress-induced decline in egg production may not be dependent upon the reproductive stage, lead to the suggestion that the detrimental effect of heat stress on reproductive performance may be in part mediated by VIP acting directly on the GnRH/gonadotropin system. Inhibin (INH) immunoneutralization has been shown to enhance FSH secretion and induces ovulation in mammals. It is hypothesized that immunization of heat-stressed turkeys against INH will increase levels of circulating FSH and the number of preovulating follicles which leads to improved reproductive performance. We have cloned and expressed turkey INH-a and INH-bA. Active immunization of turkey hens with rtINH-a increased pituitary FSH-b subunit mRNA and the number of non-graded preovulatory yellow follicles, but no significant increase in egg production was observed.
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2

Johnson, Sarah, Michael Sinclair, Emily Leonard, and Forrest Rosenbower. Development of strategies for monitoring and managing sandscape vegetation, with an assessment of declining vegetation in the Apostle Islands National Lakeshore. National Park Service, April 2022. http://dx.doi.org/10.36967/nrr-2293187.

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Coastal dune habitats such as those of the Apostle Islands National Lakeshore (APIS) are regionally rare habitats of global and state-wide concern. Their dynamic, sandy landforms provide habitat for unique species specifically adapted to frequent disturbance, drought, and other stresses. Despite having disturbance-driven life histories, these species are at risk due to increased visitor use of sandscape habitats and environmental change. Resource managers at APIS have long understood the values of these sandscapes and threats presented by recreational trampling, but more recently they have recognized the precarious position that these coastal habitats are in due to their proximity to the lake and exposure to weather-related phenomena linked with long-term climate change. In recognition of emerging threats and the need to track impacts of these threats, park managers initiated a revision of their methods for monitoring sandscape vegetation. We applied these methods to 15 sandscape locations within the national lakeshore in 2014. Here, we outline what these revisions to the methods were, assess the current status of sandscape structure and composition, assess the utility of data collected with these methods, provide suggestions for further revisions of the sampling method, outline a two-tiered sampling approach for future monitoring, and we provide management recommendations. In a second section of the report, we provide a focused assessment of the size and health of Juniperus communis (common juniper), a target species of concern in these sandscape communities after it was observed by park managers to be dying or stressed on Michigan Island. Our assessments include the status of J. communis across all sandscapes monitored in 2014, and an analysis of change over time since 2012 in the health of J. communis on Michigan, Outer, and Stockton Islands. We provide evidence of impacts by rodents on foliar dieback, primarily on Michigan Island, and we discuss possible interactions with the non-native pale juniper web-worm (Aethes rutilana) and with climate change.
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3

Johnson, Sarah, Michael Sinclair, Emily Leonard, and Forrest Rosenbower. Development of strategies for monitoring and managing sandscape vegetation, with an assessment of declining vegetation in the Apostle Islands National Lakeshore. National Park Service, April 2022. http://dx.doi.org/10.36967/nrr-2293187.

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Анотація:
Coastal dune habitats such as those of the Apostle Islands National Lakeshore (APIS) are regionally rare habitats of global and state-wide concern. Their dynamic, sandy landforms provide habitat for unique species specifically adapted to frequent disturbance, drought, and other stresses. Despite having disturbance-driven life histories, these species are at risk due to increased visitor use of sandscape habitats and environmental change. Resource managers at APIS have long understood the values of these sandscapes and threats presented by recreational trampling, but more recently they have recognized the precarious position that these coastal habitats are in due to their proximity to the lake and exposure to weather-related phenomena linked with long-term climate change. In recognition of emerging threats and the need to track impacts of these threats, park managers initiated a revision of their methods for monitoring sandscape vegetation. We applied these methods to 15 sandscape locations within the national lakeshore in 2014. Here, we outline what these revisions to the methods were, assess the current status of sandscape structure and composition, assess the utility of data collected with these methods, provide suggestions for further revisions of the sampling method, outline a two-tiered sampling approach for future monitoring, and we provide management recommendations. In a second section of the report, we provide a focused assessment of the size and health of Juniperus communis (common juniper), a target species of concern in these sandscape communities after it was observed by park managers to be dying or stressed on Michigan Island. Our assessments include the status of J. communis across all sandscapes monitored in 2014, and an analysis of change over time since 2012 in the health of J. communis on Michigan, Outer, and Stockton Islands. We provide evidence of impacts by rodents on foliar dieback, primarily on Michigan Island, and we discuss possible interactions with the non-native pale juniper web-worm (Aethes rutilana) and with climate change.
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4

Herbert, Siân. Maintaining Basic State Functions and Service Delivery During Escalating Crises. Institute of Development Studies (IDS), May 2021. http://dx.doi.org/10.19088/k4d.2021.099.

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This rapid literature review explores how to maintain essential state functions and basic service delivery during escalating conflict situations. It draws on literature and ideas from various overlapping agendas including development and humanitarian nexus; development, humanitarian and peacebuilding nexus (the “triple nexus”); fragile states; state-building; conflict sensitivity; resilience; and conflict prevention and early warning. There has been an extensive exploration of these ideas over the past decades: as the international development agenda has increasingly focussed on the needs of fragile and conflict-affected contexts (FCAS); as violent conflicts have become more complex and protracted; as the global share of poverty has become increasingly concentrated in FCAS highlighting the need to combine humanitarian crisis strategies with longer-term development strategies; as threats emanating from FCAS increasingly affect countries beyond those states and regions e.g. through serious and organised crime (SOC) networks, migration, terrorism, etc; and as global trends like climate change and demographic shifts create new stresses, opportunities, and risks.
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5

Barzi, E., and E. Terzini. Analytical Study of Stress State in HTS Solenoids. Office of Scientific and Technical Information (OSTI), January 2009. http://dx.doi.org/10.2172/970996.

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6

Brzoska, Michael, Wuyi Omitoogun, and Elisabeth Sköns. The Human Security Case for Military Expenditure Reductions. Stockholm International Peace Research Institute, March 2022. http://dx.doi.org/10.55163/tmrz9944.

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Global military expenditure has reached record levels. At the same time, hundreds of millions of people face non-traditional ‘vital’ risks and threats to their security—threats to their lives, livelihoods and dignity. Accelerating climate change and growing loss of biodiversity add unprecedented urgency to investing in people’s security. The concept of human security, as explained in this paper, emphasizes the security of people without neglecting the security of states and state order. The human security approach stresses the necessity to balance the financial needs from all vital risks and threats, regardless of their cause. It logically leads to a reassessment of spending on the military. It also seriously considers the fear that reducing military expenditure will reduce the security of states, a major barrier to past international initiatives to reduce military expenditure. As a first step to initiate the rebalancing, this paper proposes three priority fields of activity to free resources from military spending: (a) arms control and disarmament negotiations and agreements; (b) sector-wide security sector reform for conflict prevention; and (c) financial responsibility in military expenditure and arms procurement. These can be taken without impairing the security of states and state order. If successful, these steps would remove barriers to further military expenditure reductions to improve the human condition in an increasingly dangerous Anthropocene.
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7

Coe, Joshua Damon. SESAME Equations of State for Stress Cushion and Related Materials. Office of Scientific and Technical Information (OSTI), February 2015. http://dx.doi.org/10.2172/1171675.

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8

Pelekh, Andrii. Stress-Strain State of Wooden Columns Under Uneven Local Heating. Intellectual Archive, September 2020. http://dx.doi.org/10.32370/ia_2020_09_21.

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9

Preston, Leiph. Theoretical Formulation of an Ambient Stress State in Isotropic Elastic Media. Office of Scientific and Technical Information (OSTI), August 2018. http://dx.doi.org/10.2172/1468710.

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10

Lutz, Byron, and Louise Sheiner. The Fiscal Stress Arising from State and Local Retiree Health Obligations. Cambridge, MA: National Bureau of Economic Research, January 2014. http://dx.doi.org/10.3386/w19779.

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