Research of Compressive and Shear Stiffness of Laminated Elastomeric Structures

Analytical and experimental research stiffness characteristics of laminated packet are presented in this work. Package consists of alternating thin elastomeric and metallic layers jointed by vulcanization or gluing. Such packages are used in machine building, shipbuilding, civil engineering as compensating devices. The analytical expression of “compressive force – displacement” dependence is derived for the flat thin layered rubber – metal element on the basis of the variational principle; force is directed flatwise. The analytical expression of “shear force – deformation” is derived for the pre-compressed rubber-metal element. Analytical solution was confirmed by experimental data for flat packet in the shape of rectangular prism

Do patients prefer optimistic or cautious psychiatrists? An experimental study with new and long-term patients

Abstract Background Patients seeking treatment may be assumed to prefer a psychiatrist who suggests a new treatment with confidence and optimism. Yet, this might not apply uniformly to all patients. In this study, we tested the hypothesis that new patients prefer psychiatrists who present treatments optimistically, whilst patients with longer-term experience of mental health care may rather prefer more cautious psychiatrists. Methods In an experimental study, we produced video-clips of four psychiatrists, each suggesting a pharmacological and a psychological treatment once with optimism and once with caution. 100 \u2018new\u2019 patients with less than 3\ua0months experience of mental health care and 100 \u2018long-term\u2019 patients with more than one year of experience were shown a random selection of one video-clip from each psychiatrist, always including an optimistic and a cautious suggestion of each treatment. Patients rated their preferences for psychiatrists on Likert type scales. Differences in subgroups with different age (18\u201340 vs. 41\u201365 years), gender, school leaving age (\u226416 vs. >16\ua0years), and diagnosis (ICD 10\ua0F2 vs. others) were explored. Results New patients preferred more optimistic treatment suggestions, whilst there was no preference among long-term patients. The interaction effect between preference for treatment presentations and experience of patients was significant (interaction p -value\u2009=\u20090.003). Findings in subgroups were similar. Conclusion In line with the hypothesis, psychiatrists should suggest treatments with optimism to patients with little experience of mental health care. However, this rule does not apply to longer-term patients, who may have experienced treatment failures in the past

Non-stationary vibration studying based on singular spectrum analysis

In this paper nonstationary vibrations are studied by means singular spectrum analysis (SSA) – a model-free method of time series analysis and forecasting. SSA allows decomposing the nonstationary time series into trend, periodic components and noise and forecasting subsequent behavior of system. The method can be successfully used for processing the signals from the vibrating constructional elements and machine parts. This paper shows application of this method for random and nonlinear vibrations study on the examples of construction elements vibration under seismic action

Optimization of characteristics of multilayer spherical control joint-hinge stiffness

In this work the analytical expression is derived on the basis of the variational method for the evaluation of angular stiffness characteristics of the spherical multilayered elastomeric package joint-hinge subjected to loading with hinge moment and hydrostatic pressure on the lateral surfaces. Joint-package consists of alternating metallic and thin elastomeric layers. Metallic plates-layers are assumed to be rigid. It is demonstrated that the hydrostatic pressure can both mitigate and "harden" the hinge angular stiffness characteristics depending on which side surface of the elastomeric layer it is applied. Obtained relationships allow solving problems of optimal design, operation and control program selection for compensating joints of this type

Yükseköğretimde stratejik pazarlama planlaması yaklaşımı ve Türk üniversitelerinde stratejik pazarlama planlaması yaklaşımı üzerine bir araştırma

Tez (doktora) - Anadolu ÜniversitesiAnadolu Üniversitesi, Sosyal Bilimler Enstitüsü, İşletme Anabilim DalıKayıt no: 121968Zamanımızda çevre koşullarında ve rekabet koşullarında oluşan değişiklikler yükseköğretim kurumlarını da diğer işletmelerde olduğu gibi etkilemektedir. Gelecekte pazar ve rekabet koşullarına hazırlıklı olmayan yükseköğretim kurumlarını büyük zorluklar beklemektedir. Yükseköğretim kurumlarının pazarlama felsefesine eğilerek çevredeki bütün olasılıkları değerlendirmeleri ve sürekliliklerini sağlayabilmeleri açısından stratejik pazarlama planlamaları yapmaları gerekmektedir. Bu tezde yöntem olarak stratejik pazarlama planlamasının aşamaları yükseköğretimdeki stratejik pazarlama planlamasına uygulanmaktadır. Bunlar; Yükseköğretimde pazarlama kavramının geliştirilmesi. Yükseköğretim misyonunun belirlenmesi. Yükseköğretimde mevcut durumun değerlendirilmesi ve çevre. Yükseköğretimde pazarlama amaçları geliştirme. Yükseköğretimde pazarlama stratejilerinin oluşturulması. Yükseköğretimde pazarlama örgütünün kurulması. Yükseköğretimde pazarlama kontrolüdür. Ülkemiz üniversitelerinde yapılan bu araştırma ile stratejik pazarlama planlamasında karar alma yetkisi üst düzey yöneticilere ait olduğundan yükseköğretimin en üst düzey yöneticileri olan rektörlerin stratejik pazarlama planlamasına olan yaklaşımları ortaya konmaya çalışılmıştır. Bu çalışmanın değerlendirilmesinde parametrik olmayan testlerden Friedman analizi uygulanmıştır

Non-stationary vibration studying based on singular spectrum analysis

In this paper nonstationary vibrations are studied by means singular spectrum analysis (SSA) – a model-free method of time series analysis and forecasting. SSA allows decomposing the nonstationary time series into trend, periodic components and noise and forecasting subsequent behavior of system. The method can be successfully used for processing the signals from the vibrating constructional elements and machine parts. This paper shows application of this method for random and nonlinear vibrations study on the examples of construction elements vibration under seismic action

Non-stationary vibration studying based on singular spectrum analysis

In this paper nonstationary vibrations are studied by means singular spectrum analysis (SSA) – a model-free method of time series analysis and forecasting. SSA allows decomposing the nonstationary time series into trend, periodic components and noise and forecasting subsequent behavior of system. The method can be successfully used for processing the signals from the vibrating constructional elements and machine parts. This paper shows application of this method for random and nonlinear vibrations study on the examples of construction elements vibration under seismic action

Non-stationary vibration studying based on singular spectrum analysis

In this paper nonstationary vibrations are studied by means singular spectrum analysis (SSA) – a model-free method of time series analysis and forecasting. SSA allows decomposing the nonstationary time series into trend, periodic components and noise and forecasting subsequent behavior of system. The method can be successfully used for processing the signals from the vibrating constructional elements and machine parts. This paper shows application of this method for random and nonlinear vibrations study on the examples of construction elements vibration under seismic action

Adolescent emotion scale for online lessons: A study from Turkey

People’s day-to-day routines have changed drastically since the outbreak of the COVID-19 pandemic. One of the changes to take place has been the transition to online learning due to the changing conditions in learning environments. One of the factors that guide students through learning environments is their emotions. The few existing scales that measure the emotions of adolescents in learning environments have been developed with consideration of face-to-face learning environments and their items do not adequately express the state of online environments. For this reason, this study aimed to develop a scale which reveals the emotions of adolescents that may affect their academic success with regard to this transition of learning environments as they attend online lessons. A total of 3,655 middle and high school students living in Istanbul, Turkey, participated in the study. The scoring system was designed with regard to the frequency with which each student reading an item experiences the relevant emotion for the item in the online learning environment. Exploratory and confirmatory factor analyses conducted show the scale to possess a four-dimensional structure. These dimensions are enjoyment-pride, boredom-hopelessness, loneliness and anxiety. For all dimensions of the scale, Cronbach alpha values range between.93 and.83. ‘Positive and Negative Affects Schedule-Children’ was used to confirm the scale’s criterion-related validity, and correlations between dimensions were examined. After validity and reliability studies, the Adolescent Emotion Scale for Online Lessons was found to be sufficient. The scale can be used by experts and teachers who wish to determine adolescents’ emotions during a period of online learning. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.TÜBİTAK, (120K193); Türkiye Bilimsel ve Teknolojik Araştirma Kurumu, TÜBITA