41 research outputs found

    A 100-kW metal wind turbine blade basic data, loads and stress analysis

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    A rotor loads computer program was used to define the steady state and cyclic loads acting on 60 ft long metal blades designed for the ERDA/NASA 100 kW wind turbine. Blade load and stress analysis used to support the structural design are presented. For the loading conditions examined, the metal blades are structurally adequate for use, within the normal operating range, as part of the wind turbine system

    Factors determining intentions of collaborative consumption.

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    Collaborative consumption has become quite popular form in use of products or services over the last few years while companies that have engaged this innovative phenomenon are mostly well known all around the world. Although there are three main groups in the sharing system – buyers, sellers and the platform with the owner behind it – the first two are the key parts for the operation of this phenomenon. Recently, collaborative consumption has been actively analyzed in various studies but it is still difficult to identify the factors that determine a person's intention to share his personal assets with other community members of the platform as well as what motivates buyers to temporarily take over resources of the others. That is why the scientific problem of this project can be formulated by the question: what factors determine the intentions of the collaborative consumption? The object of the project: collaborative consumption accommodation service platforms. The aim of the project: to theoretically and empirically identify factors that determine intentions of the collaborative consumption. The objectives of the project: 1. To identify the relevance of the collaborative consumption as well as determinants and outcomes of it. 2. To define the concepts of sharing economy and collaborative consumption on a theoretical level. 3. To conceptualize the intentions of collaborative consumption and the factors determining them in the context on theory of planned behavior. 4. Develop a conceptual model which covers factors determining intentions of the collaborative consumption. 5. To develop the methodology for empirical testing of the conceptual model. 6. Empirically test the conceptual model of factors determining intentions of the collaborative consumption. 7. To summarize the possibilities of the model application based on the results of theoretical and empirical research as well as identify the directions for further researches and provide recommendations for the owners of sharing platforms. Results of the project: Based on the results of the scientific literature analysis a conceptual research model was developed. The main idea of it: groups of determining factors form relevant personal beliefs which further determine certain intentions related to the collaborative consumption. Mentioned model was used in the empirical study to test the sharing systems of accommodation services in the Lithuanian market. The empirical study revealed that the group of engagement determinants which includes the overall knowledge of the sharing platforms, trust in community members, and the ease of connection and further usage of the sharing system has the strongest impact on the intentions of both new and existing users in collaborative consumption platforms. Meanwhile, personal benefits, risk minimization and external environment pressure had a weaker effect on the intentions of the collaborative consumption. Also, worth mentioning that people who have never used accommodation sharing platforms are less motivated by the asset management risks as well as by the sense of belonging to a social community. Meanwhile, regular consumers will continue to use accommodation sharing platforms in the form of external pressures and factors of personal benefits which are mainly driven by hedonistic motives that define internal satisfaction about the innovative personal behavior. Based on the empirical study results operators of the sharing systems should allocate as much as possible resources to the smooth technical operation of the platform and ensure that all information related to the operating principles is easily accessed at any time. Also, they should put all effort in order to create an environment in which community members cannot cheat and take advantage of other users. Appropriate changes made in the system of sharing platform as well as in the strategy of marketing activities allow to expect for a greater involvement of new users together with a more active participation of the current consumers

    Importance of physical education lecturer competency while preparing the law enforcement officials

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    Competence is used as an attribute of knowledge and skills to describe the lecturer's ability to perform tasks very well or institution's ability to provide high quality services. This work will be based on the concept of competence mentioned where competence is treated as a certain ability to adapt their skills to changing situations. In consequence competence is defined as the use of human power in a particular practice, which leads to an efficient and higher quality of work performance. It is not only the ability to find the necessary decisions in various situations, applying the knowledge, skills, but also an opportunity to express themselves. Physical education lecturer who has a lot of skills and knowledge to use them in the educational work, have the right to fully develop not only the physical characteristics of students, but also to educate the various competencies and payment to them in life, i.e. to prepare a future officer for the practice.Kompetencija vartojama kaip ţinių ar sugebėjimų atributas, siekiant apibūdinti dėstytojų gebėjimą labai gerai atlikti uţduotis arba įstaigos gebėjimą teikti aukščiausios kokybės paslaugas. Šiame darbe ir bus remiamasi minėta kompetencijos samprata, kur kompetencija traktuojama kaip tam tikras gebėjimas savo įgūdţius pritaikyti kintančioje situacijoje. Taigi kompetencija yra apibrėţiama kaip ţmogaus galių pritaikymas tam tikroje praktinėje veikloje, kuri lemia efektyvų ir aukštesnės darbo kokybės atlikimą. Tai ne tik sugebėjimas rasti reikalingus sprendimus įvairiose situacijose, pritaikant turimas ţinias, įgūdţius, bet ir galimybė išreikšti save. Fizinio rengimo dėstytojas, turintis daugybę kompetencijų ir gebėjimą jomis naudotis ugdomajame darbe, turi teisę visapusiškai ugdyti ne tik fizinius studentų ypatumus, bet ir lavinti jų įvairias kompetencijas bei mokėjimą jomis naudotis gyvenime, t.y. rengti būsimąjį pareigūną praktinei veiklai

    Importance of judo competition to officer training process

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    Research analyzing future officer applied special physical training questions. Analyzing judo development of police officers physical capacity, improving their psychological preparation, and ability to operate in difficult, extreme situation. Research aim is to evaluate 2010 and 2011 year specific moves made in student judo competition. This research prove that wrestling develop skills needed in officers professional work. Various levels of wrestlers dominating during competition such as Lithuanian student judo championships and SELL games judo championships use wrestling moves which brings them victory. Those moves are using officers in the field maintaining public safety. Assumption is made that wrestling should be part of future officers training as part of physical preparation.Straipsnyje nagrinėjami būsimų statutinių pareigūnų specialaus taikomojo fizinio rengimo klausimai. Analizuojama dziudo reikšmė ugdant policijos pareigūnų fizines galias, gerinant jų psichologinį pasirengimą ir gebėjimą veikti sudėtingose ekstremaliose situacijose. Straipsnio tikslas – įvertinti 2010 ir 2011 metų studentams svarbiausiose dziudo varžybose atliekamus veiksmus, atskleisti varžybų imčių specifiką. Šiame straipsnyje padaryta išvada, kad imtynės ugdo pareigūnams reikalingus profesinius įgūdžius. Lietuvos studentų dziudo čempionatuose, SELL žaidynių dziudo varžybose, kuriose dominuoja skirtingo sportinio meistriškumo imtynininkai, pergalės dažniausiai pasiekiamos atliekant veiksmus, kuriuos pareigūnai naudoja ir profesinėje veikloje užtikrindami viešąją tvarką. Daroma prielaida, kad šios imtynės turėtų būti sudėtinė būsimųjų statutinių pareigūnų taikomojo fizinio rengimo dalis

    The analysis of rail traffic control systems

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    Straipsnyje lyginamos geležinkelyje naudojamos eismo valdymo sistemos. Analizuojami jų privalumai ir trūkumai. Apžvelgta įvairiose šalyse naudojamų geležinkelio eismo valdymo sistemų raida bei aptariamas tolesnis jų plėtojimas. Analizuojamos šių mikroprocesorinių eismo valdymo sistemų pritaikymo Lietuvoje galimybės. Siekiant pagrįstai tai išsiaiškinti atlikta Lietuvos geležinkeliais vežtų krovinių analizė ir įvertintas įvairiais kelio ruožais vežtų krovinių skaičiaus netolygumas. Analizuota kiek traukinių sulaikyta dėl eismo valdymo sistemų gedimų per paskutinius kelerius metus. Apskaičiuotos naujai įrengiamos mikroprocesorinės eismo valdymo sistemos įdiegimo geležinkelio stotyje sąnaudos bei šių sistemų atsipirkimo laikas ir darbuotojų poreikis.Abstract in English. The systems used for rail traffic control are compared. Their advantages and disadvantages are analysed. The present and future development of rail traffic control systems in various countries is considered. The possibility of adapting these microprocessor-based traffic control systems to the conditions of Lithuania is analysed. For this purpose, the analysis of goods transported by Lithuanian railways is made, and the non-uniform amount of goods transported on different road sections is evaluated. The number of the delayed trains due to the failure of traffic control systems in recent years is determined, the cost of installing a new microprocessor-based traffic control system at the railway station, as well as its repay time and the demand for employees are calculated

    The Analysis of Rail Traffic Control Systems

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    <p>The systems used for rail traffic control are compared. Their advantages and disadvantages are analysed. <br />The present and future development of rail traffic control systems in various countries is considered. <br />The possibility of adapting these microprocessor-based traffic control systems to the conditions of Lithuania is analysed. For this purpose, the analysis of goods transported by Lithuanian railways is made, and the non-uniform amount of goods transported on different road sections is evaluated. <br />The number of the delayed trains due to the failure of traffic control systems in recent years is determined, the cost of installing a new microprocessor-based traffic control system at the railway station, as well as its repay time and the demand for employees are calculated. </p><div class="nav_keywords"><p>Article in Lithuanian</p></div

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    Hidropiridino dariniai -naujos medžiagos elektrofotografiniams sluoksniams

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    The 1-arylsubstituted 1,4,5,6-tetrahydropyridones were synthesized by interaction of N-aryl-b-alanines and ethyl acetoacetate. Reactions of 1-(4-bromophenyl)-2-ethoxycarbonyl-1,4,5,6-tetrahydro-4(1H)pyridone with hydrazine derivatives were carried out. The ionization potential was measured by the electron photoemission in air method. The results of the measurements confirm that the materials may be synthesized with the ionization potential typical of the hole transporting materialsVytauto Didžiojo universitetasŽemės ūkio akademij
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