Dissertations / Theses on the topic 'Parameter of the type of stress state'
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Куан, Фам Дик. "Критерій граничного стану конструкційних матеріалів з врахуванням пошкоджуваності." Doctoral thesis, Київ, 2019. https://ela.kpi.ua/handle/123456789/30096.
Full textBarsoum, Imad. "The effect of stress state in ductile failure." Doctoral thesis, Stockholm : Hållfasthetslära, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4667.
Full textBobei, Doru Aerospace Civil & Mechanical Engineering Australian Defence Force Academy UNSW. "Static liquefaction of sand with a small amount of fines." Awarded by:University of New South Wales - Australian Defence Force Academy. School of Aerospace, Civil and Mechanical Engineering, 2004. http://handle.unsw.edu.au/1959.4/38699.
Full textBergholz, Katharina. "An extended bounding surface model for the application to general stress paths in sand." Institut für Geotechnik, 2019. https://tud.qucosa.de/id/qucosa%3A72600.
Full textDie Prognose von Setzungen für die Bemessung von Infrastrukturbauwerken stellt hohe Anforderungen an die numerische Untersuchung des Baugrunds und das damit verbundene Stoffgesetz: komplexe Herstellungsprozesse und zyklisch wiederkehrende Verkehrslasten stellen beachtliche Herausforderungen dar. Während das Hauptaugenmerk zumeist auf der realitätsnahen Abbildung des Bodenverhaltens liegt und damit die analytischen Anforderungen des geotechnischen Problems im Fokus stehen, sollten die Bedürfnisse der Ingenieurspraxis in der Stoffgesetzmodellierung nicht außer Acht gelassen werden. In diesem Sinne wurde im Rahmen der Elastoplastizität ein neues Materialmodell für nichtbindige Böden entwickelt. Auf dem Konzept der Bounding Surface Plastizität nach Manzari und Dafalias (1997) beruhend, sind Eigenschaften wie Festigkeit, Steifigkeit und Dilatanz Funktion des Abstands zwischen aktuellem Spannungszustand und einer zugeordneten Modellfläche im Spannungsraum. Auf diese Weise bildet das Mehrflächenmodell fundamentale Verhaltensmuster von Boden korrekt ab, einschließlich beispielsweise scherbezogener Phänomene wie Ver- und Entfestigung, Kontraktanz und Dilatanz oder das Erreichen des kritischen Zustands (Scherfestigkeit bei konstantem Volumen). Des Weiteren erfasst das Modell die Zustandsabhängigkeit des Bodenverhaltens (Barotropie und Pyknotropie). So kann mit nur einem Parametersatz das mechanische Verhalten einer großen Spannweite unterschiedlicher Anfangszustände hinsichtlich Spannung und Lagerungsdichte simuliert werden. Der kinematische Verfestigungsmechanismus der konusförmigen Fließfläche trägt bei Ent- und Wiederbelastungen zu einer realistischeren Steifigkeitsentwicklung bei und ist damit von essenzieller Bedeutung für die Akkumulation von Spannungen oder Verformungen infolge von Lastwechseln. Da sich der gewählte konstitutive Rahmen für Weiterentwicklungen eignet, wurde die ursprüngliche Formulierung des Stoffgesetzes erweitert, um das Modell an die definierten Anforderungen anzupassen. Um geotechnisch relevante Spannungspfade niedriger und höherer Komplexität adäquat reproduzieren zu können, wurde zunächst eine kappenförmige Fließfläche ergänzt. So können irreversible Verformungen nicht nur bei Scherung, sondern auch bei Belastungen ohne Änderung des Spannungsverhältnisses, wie z. B. bei isotroper oder ödometrischer Kompression, auftreten. Bei Spannungspfaden ungewöhnlicher Orientierung, bei Lastwechseln oder zusammengesetzten Spannungspfaden mit Änderung der Belastungsrichtung hat sich eine erhöhte Steifigkeit bei kleinen Dehnungen mit anschließendem dehnungsabhängigen Abfall als nützlich erwiesen. Darüber hinaus berücksichtigt ein zusätzlicher Mechanismus die rückläufige Akkumulation von Spannung oder Verformung mit zunehmender Zyklenanzahl (mittels dissipierter Energie). Im Hinblick auf die Eignung des Stoffgesetzes für die Praxis ist das Modell modular aufgebaut. So kann die Komplexität des Modells (und damit die Anzahl der Parameter) durch Ein- und Ausschalten bestimmter Erweiterungen an die Komplexität des geotechnischen Problems angepasst werden. Die Mehrzahl der Modellparameter wird mit Hilfe konventioneller Laborversuche bestimmt. Eine interne Routine erleichtert durch die Kalibrierung bestimmter Bounding Surface bezogener Größen anhand eines alternativen, stärker an Versuchsergebnissen orientierten User-Inputs bei Bedarf die Parameterwahl. Da die Kenntnis eines Stoffgesetzes entscheidend ist für dessen vernünftigen und verantwortungsvollen Einsatz, soll die vorliegende Arbeit eine fundierte und umfassende Dokumentation bieten. Der erste Teil vermittelt daher zunächst einen Überblick über das zugrunde liegende Bounding Surface Konzept und beschreibt die Neuerungen auf konstitutiver Ebene mit Bezug auf theoretische Hintergründe. Er wird gefolgt von einer detaillierten Darlegung von Potenzialen und Einschränkungen für die Nutzung des erweiterten Modells. Der nächste Abschnitt widmet sich der numerischen Implementierung des Stoffgesetzes und seiner Kalibrierung auf Basis von Versuchsergebnissen. Des Weiteren wird die Kalibrierungsroutine einschließlich des verwendeten Optimierungsalgorithmus präsentiert. Der nachfolgende Teil dient der Modellvalidierung: durch die Simulation von Elementversuchen, die Erzeugung von Antwortellipsen sowie die Abbildung allgemeinerer (beispielsweise zusammengesetzter) Spannungspfade wird die Leistungsfähigkeit des erweiterten Bounding Surface Modells demonstriert. Abschließend werden Schlussfolgerungen gezogen und potenzielle Perspektiven aufgezeigt.:1 Introduction 1.1 General aspects on constitutive modelling 1.2 Motivation and outline of the thesis 1.3 Basic assumptions and terminology 2 Literature review 2.1 From elastoplasticity to bounding surface plasticity 2.1.1 Bounding surface model according to Manzari and Dafalias (1997) 2.2 Further development of the original model 2.2.1 Papadimitriou and Bouckovalas (2002) 2.2.2 Taiebat and Dafalias (2008) 2.3 Small strain stiffness 2.3.1 Observations 2.3.2 Micromechanical considerations 2.3.3 Very small strain shear modulus G0 2.3.4 Constitutive modelling approaches 2.4 Dilatancy 3 The extended bounding surface model 3.1 Fundamental capabilities of the bounding surface concept 3.1.1 Elastic region 3.1.2 Critical state 3.1.3 Shear strength 3.1.4 Shear stiffness (monotonic) 3.1.5 Contractancy and dilatancy 3.1.6 Barotropy and pycnotropy 3.1.7 Compressive stiffness 3.1.8 Shear stiffness in reversed loading 3.1.9 Additional features 3.2 New features of the extended bounding surface model 3.2.1 Minor modifications 3.2.2 Dilatancy formulation 3.2.3 Cap yield surface 3.2.4 Small strain stiffness mechanism 3.2.5 Cyclic loading mechanism 3.2.6 Summary 3.3 Limitations of the bounding surface model 3.3.1 Intrinsic insuffciencies of the bounding surface concept 3.3.2 Remaining shortcomings of the advanced model version 3.3.3 Newly introduced deficiencies 4 The numerical model and its calibration procedure 4.1 Octave implementation of an element test programme 4.2 Calibration procedure 4.2.1 Sands for calibration 4.2.2 Calibration of basic parameters 4.2.3 Calibration of extended model parameters 4.3 User friendly calibration routine 4.3.1 Conceptual background 4.3.2 Optimisation algorithm 5 Performance of the extended bounding surface model 5.1 Model performance in element tests 5.1.1 Monotonic drained triaxial compression test 5.1.2 Monotonic undrained triaxial compression test 5.1.3 Monotonic eta-constant tests 5.2 Model performance in non-standard triaxial testing 5.2.1 Concept of response envelopes 5.2.2 Simulation of response envelopes 5.3 Model performance on general stress paths 5.3.1 Triaxial compression at small strains 5.3.2 Cyclic triaxial loading 6 Conclusions and perspectives 6.1 Conclusions 6.2 Future perspectives Bibliography Appendices A Mathematical background A.1 Fundamental equations of elastoplasticity A.2 Compilation of major constitutive equations (multiaxial formulation) A.3 Elastoplastic stiffness matrix for singular yield surfaces A.4 Coefficient matrices S and E for loading constraints A.5 Derivation of Mcap and Hcap A.6 Intergranular strain adjustment A.7 Intergranular strain correlation B Details on particle swarm optimisation C Compilation of simulation results C.1 Monotonic triaxial loading C.1.1 Toyoura sand C.1.2 Sacramento River sand C.1.3 Hostun sand C.2 Monotonic eta-constant loading C.2.1 Sacramento River sand C.2.2 Hostun sand C.3 Cyclic triaxial loading
Foster, Liesel Ann. "Effect of heat stress on six beef breeds in the Zastron District : the significance of breed, coat colour and coat type." Thesis, Bloemfontein : Central University of Technology, Free State, 2010. http://hdl.handle.net/11462/32.
Full textBuyukadali, Cemil. "Periodic Solutions And Stability Of Differential Equations With Piecewise Constant Argument Of Generalized Type." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12610746/index.pdf.
Full text, the existence and stability of periodic solutions of quasilinear differential equations with retarded piecewise constant argument of generalized type in noncritical case, that is, the unperturbed linear ordinary differential equation has not any nontrivial periodic solution, are investigated. The continuous and differential dependence of the solutions on an initial value and a parameter is considered. A new Gronwall-Bellmann type lemma is proved. Next, quasilinear differential equations with alternately advanced-retarded piecewise constant argument of generalized type is addressed. The critical case, when associated linear homogeneous system admits nontrivial periodic solutions, is considered. Using the technique of Poincaré
-Malkin, criteria of existence of periodic solutions of such equations are obtained. One of the main auxiliary results is an analogue of Gronwall-Bellmann Lemma for functions with alternately advanced-retarded piecewise constant argument. Dependence of solutions on an initial value and a parameter is investigated. Finally, a new class of differential equations with state-dependent piecewise constant argument is introduced. It is an extension of systems with piecewise constant argument. Fundamental theoretical results for the equations: existence and uniqueness of solutions, the existence of the periodic solutions, the stability of the zero solution are obtained. Appropriate examples are constructed.
Arcambal, Angélique. "Effet délétère de l’hyperglycémie sur la fonctionnalité des cellules endothéliales cérébrales et rôle protecteur de polyphénols antioxydants." Thesis, La Réunion, 2019. http://www.theses.fr/2019LARE0004.
Full textType 2 diabetes promotes vascular complications, leading to cerebrovascular disorders such as stroke. Indeed, hyperglycemia alters the blood-brain barrier integrity by deregulating the cerebral endothelial cell function. Oxidative stress and pro-inflammatory response may play a causal role. Thus, the biological effect of plant polyphenols known to exert antioxidant and anti-inflammatory capacities is of high interest. We evaluated the impact of hyperglycemia on the production of redox, inflammatory and vasoactive markers of cerebral endothelial cells, and the protective effect of polyphenols from the medicinal plant Antirhea borbonica from Reunion island. The murine bEnd.3 cerebral endothelial cells and an ischemia-reperfusion mouse model exposed to hyperglycemia were used. Our results demonstrated that hyperglycemia induced an oxidative stress and a pro-inflammatory state, leading to cerebral endothelial dysfunction through the activation of specific signaling molecules. Importantly, polyphenols extracted from Antirhea borbonica counteracted hyperglycemia deleterious effects and protected cerebral endothelial cells. Moreover, hyperglycemia exacerbated oxidative stress and pro-inflammatory state promoting cerebrovascular damages and loss of endothelial barrier integrity in ischemia-reperfusion mice model. Polyphenols exerted antioxidant and anti-inflammatory activities, attenuating cerebrovascular damages. These findings suggest that polyphenols extracted from Antirhea borbonica exerted protective effects on cerebral endothelial cells and an ischemia-reperfusion mouse model against deleterious effects of hyperglycemia
Obršlík, Petr. "Modelování a statická analýza stropní konstrukce v programu ANSYS." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226805.
Full textДжус, А. П. "Розвиток наукових основ забезпечення працездатності обладнання при транспортуванні стиснутого природного газу." Thesis, Івано-Франківський національний технічний університет нафти і газу, 2016. http://elar.nung.edu.ua/handle/123456789/4786.
Full textДиссертация посвящена решению важной научно-прикладной проблемы обеспечения работоспособности оборудования при реализации технологических процессов транспортировки сжатого природного газа путем разработки метода оценки его технического состояния, совершенствования конструкции грузовых емкостей и формирования методологических основ комплектования оборудованием технологических барж и разгрузочных терминалов. Установлены закономерности влияния термодинамических процессов на формирование температурных нагрузок оборудования для транспортировки сжатого природного газа и получены количественные зависимости, учитывая которые можно предотвратить потерю работоспособности емкостей вследствие выхода их рабочих температур за пределы допустимых значений. Для емкостей высокого давления, выполненных в виде подвижного трубопровода, установлены закономерности влияния способов и скоростей реализации процесса загрузки на их напряженно-деформированное состояние, указывающие на необходимость оценки долговечности элементов соединения линейных участков с учетом двухчастотности процесса погрузки. Исследованы условия формирования кольцевых трещин в композитном усилении емкостей комбинированного типа. Доказано, что напряженно-деформированное состояние металлического лейнера возле кольцевых трещин, приближенных к днищам, характеризуется склонностью к росту напряжений и увеличению вероятности разрушения. Предложен метод оценки работоспособности оборудования для транспортировки сжатого природного газа с учетом нагрузок, обусловленных особенностями реализации технологических процессов, и фактического технического состояния. Для его определения на базе высокочастотного индуктивного датчика создана автоматизированная система контроля с возможностью воспроизведения участков потерь металла в трехмерном виде. Разработана технология изготовления многополостного сосуда высокого давления повышенной работоспособности с использованием композитных и стальных труб. Специально введенным для сравнительной оценки емкостей различных типов и рабочих давлений критерием совершенства, который определяется отношением массы емкости до объема газа, приведенного к нормальным условиям, обоснована целесообразность ее использования в виде длинномерной конструкции, ограниченной параметрами морского транспортного средства. Предложен новый подход к оптимизации процессов разгрузки морских транспортных средств в существующую газотранспортную инфраструктуру с использованием двух ветвей соединительного газопровода. Соблюдение рекомендаций по режимам работы разгрузочных терминалов обеспечивает разгрузку из морских транспортных средств до 80% газа без введения в действие компрессорного оборудования, а также минимизирует влияние особенностей технологических процессов на работоспособность магистральных газопроводов. Комплексный учет теоретических и экспериментальных исследований влияния технологических процессов загрузки и разгрузки морских транспортных средств на формирование напряженно-деформированного состояния элементов оборудования позволил разработать меры обеспечения его работоспособности при транспортировке сжатого природного газа.
The dissertation is devoted to solving the important scientific and applied problem of equipment performance assurance in the implementation of compressed natural gas transportation processes across offshore zones. The paper established the influence patterns of charts and speeds for feeding process of the high-pressure reservoirs, constructed in the form of movable pipelines, onto their strain-stress state. The conditions of ring cracks formation in composite reinforcement of combined type reservoirs, peculiarities of reinforcement coupling with metallic liner in operation, were investigated, the impact of cracks presence for metallic liners strain and stress state formation, considering the possibility of corrosion damage, were assessed. The theoretical and methodological principles of processing offshore transport facilities, stocking with equipment for gas treatment and loading, got the further development, the new approach for unloading operations optimization of offshore transport facilities into existing gas transport infrastructure was proposed. The method and operability tools for compressed gas transportation, taking into consideration the existing technical state and loading due to the processes implementation peculiarities were developed. The new criterion of excellence for comparative assessment of various type and operating pressure reservoirs, determined by the ratio of the mass of the reservoir to the volume of gas to be transported in it, reduced to normal conditions, was proposed.
Baumgarten, Lars. "Gesteinsmechanische Versuche und petrophysikalische Untersuchungen – Laborergebnisse und numerische Simulationen." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2016. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-202612.
Full textScarfe, Bradley Edward. "Oceanographic Considerations for the Management and Protection of Surfing Breaks." The University of Waikato, 2008. http://hdl.handle.net/10289/2668.
Full textChen, Kuo-Jeng, and 陳國正. "EFFECTS OF STRESS PATHS ON THE STATE PARAMETER OF SAND." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/38710815369388065231.
Full text國立臺灣科技大學
營建工程技術學系
82
The steady-state of sands has been studied many years, but there still exist some questions. For example, are critical state and steady state the same? or does it depend on initial fabric and stress path of the test? ...etc. Triaxial compression and extension tests, resonant column tests and undrained monotonic torsional shear tests were preformed by using quasi-static torsional simple shear/resonant column apparatus and triaxial test apparatas with enlarged lubricated platens on remolded samples of Taipei silty sand to study the effects of stress path, fine contents, gradation, end restraint effect on steady state line and undrained steady state strength of soils. The critical and steady states are shown to be equal and independent of stress path from triaxial compression and extension test results. But, there are significant difference between the steady state line of triaxial test and that of monotonic torsional simple shear test. The end restraint and fabric behavior have some noticeable effect on test results of monotonic torsional simple shear test. Fine contents, gradation and end restraint have significant influence on the slope and position of steady state line.
Hernandez-Narvaez, Mariano. "Analysis of the quasi-steady state approximation on parameter identifiability for a dynamic soil erosion model." 1992. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1991_561_sip1_w.pdf&type=application/pdf.
Full textChang, Li-Chung, and 張力中. "The Effects of Roughness Type Simulation, Inclusion Properties and Residual Stress State on the Hardness of Materials." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/29892998126365209025.
Full text大同大學
機械工程學系(所)
103
The mechanical properties of material are important in the application or design in a product. Therefore the correct assessment of mechanical properties will improve the overall selection process. In the thesis, we utilize finite element method (FEM) to investigate two issues of hardness in mechanical properties: how roughness and internal stress affect the hardness. In roughness, two types of silicon substrate roughness (regular and random) with various magnitude of roughness were deposited with diamond-like carbon films. The hardness was measured via nanoindentation. The results show that the hardness in regular roughness substrate tends to be higher than that in random roughness under same average roughness. This indicates that if the roughness is modeled as regular distribution, the hardness is overestimated. Meanwhile the hardness in large roughness substrate is higher than the small roughness counterpart. Apart from substrate roughness, the effect of internal stress in hardness is also investigated. The effect of internal stress of hardness is investigated by varying different ratio of biaxial stress. To clarify the constitutive effect, three different elastic materials with isotropic, transversely isotropic and orthotropic constitutive laws are proposed coupled with perfect-plasticity and kinematic hardening plastic constitutive behaviors. The results show under general loading conditions, the internal stress has little effect on hardness measurement. However, there exists some discrepancies in hardness measurement in elastic and plastic loading. For hardness variation, elastic deformation seems to exhibit larger impact than that in plastic deformation. In different elastic constitutive laws the order of variation in hardness is transversely isotropic > orthotropic > isotropic. For plastic constitutive laws, hardness in kinematic hardening has bigger variation than that in perfect-plasticity. Even though the internal stress does not play a critical role in hardness, the material anisotropy is critical in hardness measurement.
SHIH, YAO-KAI, and 施耀凱. "Investigation of the Off-State DC/AC Stress Reliability in P-type Low Temperature Poly Silicon Thin Film Transistors." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/3685sa.
Full text國立高雄科技大學
電子工程系
107
Low Temperature Poly Silicon thin film transistors (LTPS TFTs) have a wide range of applications because of their excellent electrical performance. Currently, they are the mainstream of small and medium-sized panels. Academia and industry have invested a lot of resources in research and development. However, when a thin film transistor (TFT) is operated under high voltage, high current, and illumination, it’s easy to cause degradation of the electrical characteristics in the devices. For instance, a hot-carrier effect and a self-heating effect are important reliability issues in TFTs. From the electrical performance point of view in LTPS TFTs, its disadvantage is a large leakage current in the off state. Unlike most of the device in the on-state study, this paper focuses on the reliability analysis of LTPS TFTs in off-state. In the experimental design part, we apply a pulse voltage to the gate to stress the device. Next, operation mode of the TFT array is simulated to switch repeatedly. The degradation behavior of TFTs in the long term off-state operation is investigated. In the first part of the paper, we applied an AC bias to the gate to do 1000s stress, and the device was found degraded. It is seen from the I-V diagram that the threshold voltage (Vth) shifts to the right, the on current (Ion) rises, and the off current (Ioff) has a tendency to decrease. In addition, the C-V diagram indicates the capacitance (C) abnormally rises early. From the experimental results of DC-stress and changing the rising / falling time, the degradation of the device is mainly positive proportion to the rising time (on-state to off-state). During the switching process, the carriers cannot be excluded in time due to the strong electric field on both sides. The impact ionization happens and produces more electron hole pairs. Some electrons are trapped close to the gate insulator near source/drain and lead to electrical characteristics degradation. This research mainly analyzes the reliability issues during switching. Next, based on the experimental method in the first part, the active layer in LTPS TFTs with different excimer laser annealing (ELA) conditions (560, 580, 620mJ/cm2) are used for AC stress. It is found that the higher ELA energies, which possess large grain size, will cause the large number of the grain boundary defects (Ntrap). More captured carriers in the grain boundary defects will be affected by the strong electric field which is from the on state to off state. Therefore, the most serious degradation will occur in the devices with the large Ntrap. However, the protrusions which cause by the crystallization will be proportional to the ELA energy, the electric field from protrusions will be stronger in the higher ELA energy. Therefore, the devices reliability is quite important in the off state AC stress.
Browning, Sean. "The mental health and well-being of informal caregivers in Europe: regime type, intersectionality, and the stress process." Thesis, 2021. http://hdl.handle.net/1828/12877.
Full textGraduate
Іванченко, Данило Віталійович. "Особливості синдрому емоційного вигорання у алекситимічного типу особистості." Магістерська робота, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/4365.
Full textUA : Робота викладена на 66 сторінки, 8 таблиць. Перелік посилань включає 70 джерел. Об'єкт дослідження - синдром «емоційного вигорання» у працівників. Проблема в професійного стресу вже досить довгий час цікавить зарубіжних та вітчизняних дослідників. На роботі людина підлягається в великій кількості стресогених факторів, серед яких такі як соціальна оцінка, невизначеність, повсякденна рутина тощо. Але не слід забувати і про те, що стресові фактори впливають на людину не тільки на роботі, а й вдома, на вулиці, у повсякденному житті. Все це створює досить великий ризик виникнення стресових розладів. Актуальною проблемою на сьогоднішній день є розповсюдження серед працівників організацій синдрому «емоційного вигорання» (СЕВ). Найбільш характерним він є для людей кому Що працюють в системі лапки людина і людина. На нашу думку, дуже важливо дослідити можливі причини виникнення такого роду стресу та виявити можливі шляхи його подолання. Наукова новизна полягає у уточненні й розширенні уявлень про фактори, що впливають на розвиток синдрому «емоційного вигорання» в професійній діяльності.
EN : The work is set out on 66 pages, 8 tables. The list of links includes 70 sources. The object of study - the syndrome of "emotional burnout" in employees. The problem of occupational stress has long been of interest to foreign and domestic researchers. At work, a person is exposed to a large number of stressors, including such as social evaluation, uncertainty, daily routine and so on. But we should not forget that stress factors affect a person not only at work but also at home, on the street, in everyday life. All this creates a fairly high risk of stress disorders. An urgent problem today is the spread of the syndrome of "emotional burnout" (CEM) among employees of organizations. It is most characteristic of people who work in the system of paws man and man. In our opinion, it is very important to investigate the possible causes of this type of stress and identify possible ways to overcome it. The scientific novelty lies in the clarification and expansion of ideas about the factors influencing the development of the syndrome of "emotional burnout" in professional activities.
Thieme, Lenka. "Inzulínová rezistence a postprandiální stav u diabetu 2. typu. Vliv frekvence a složení jídel na metabolismus glukózy a další projevy metabolického syndromu." Doctoral thesis, 2017. http://www.nusl.cz/ntk/nusl-372355.
Full textBaumgarten, Lars. "Gesteinsmechanische Versuche und petrophysikalische Untersuchungen – Laborergebnisse und numerische Simulationen." Doctoral thesis, 2015. https://tubaf.qucosa.de/id/qucosa%3A23031.
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