Academic literature on the topic '004.79.(075.8)'
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Journal articles on the topic "004.79.(075.8)"
Geoffard, Pierre-Yves. "La réforme de l'assurance maladie confrontée à la théorie économique de la santé." Les Tribunes de la santé 4, no. 3 (2004): 71. http://dx.doi.org/10.3917/seve.004.79.
Full textDissertations / Theses on the topic "004.79.(075.8)"
Булгакова, Наталія Борисівна, Тетяна Іванівна Довгодько, and Н. Василишина. "Contemporary Approaches of Foreign Students Propaedeutic Preparation." Thesis, The VII World Congress “Activation in the XXI-st century” “Safety in Aviation and Space Technologies” (September 19-21, 2016). – K.: NAU, 2016. – P. 12.21-12.24, 2016. http://er.nau.edu.ua/handle/NAU/26477.
Full textПрищепа, Наталія Петрівна, Natalia Pryschepa, and Наталья Петровна Прищепа. "About some factors of enterprises` competitiveness." Thesis, Національний Авіаційний Університет, 2019. http://er.nau.edu.ua/handle/NAU/39069.
Full textНаиболее заметным сегодня в Украине является усиление конкуренции на рынках потребительских товаров. Это связано с прогрессирующим дисбалансом между предложением, имеющим значительный потенциал роста в виде неиспользованных производственных мощностей предприятий, и платежеспособным спросом, который зависит от реальных доходов потребителей. Успех предприятия на рынке во многом зависит от того, насколько хорошо оно решает проблему обеспечения адекватности выбранных способов достижения целей, с одной стороны, и доступности ресурсов и рыночной ситуации - с другой. Эта задача относится к ряду задач стратегического управления маркетингом, точнее одной из них - стратегического планирования маркетинга.
Найбільш помітним сьогодні в Україні є зростання інтенсивності конкуренції на ринках споживчих товарів. Цей факт обумовлений прогресивним дисбалансом між пропозицією, яка має значний потенціал для зростання у вигляді невикористаних виробничих потужностей підприємств, та платоспроможного попиту, який залежить від реальних доходів споживачів. Успіх підприємства на ринку багато в чому залежить від того, наскільки добре він вирішує проблему забезпечення адекватності обраних шляхів досягнення цілей, з одного боку, і наявності ресурсів і ринкової ситуації - з іншого. Це завдання належить до низки проблем стратегічного маркетингового менеджменту, а точніше одного з них - стратегічного маркетингового планування.
Кафедра менеджменту зовнішньоекономічної діяльності
Вільчанська, В. О. "Каналізація, її системи та схеми." Thesis, Національний авіаційний університет, 2021. https://er.nau.edu.ua/handle/NAU/52716.
Full textМалишевська, Катерина Миколаївна. "Інтелектуальна система для розпізнавання об'єктів на оптичних зображеннях з використанням каскадних нейронних мереж." Doctoral thesis, Київ, 2015. https://ela.kpi.ua/handle/123456789/14391.
Full textПрищепа, Наталія Петрівна, Natalia Pryshchepa, and Наталья Петровна Прищепа. "Globalization processes in the aviation industry of Ukraine." Thesis, Національний Авіаційний Університет, 2019. http://er.nau.edu.ua/handle/NAU/39072.
Full textThe article is devoted to the analysis and disclosure of the main programs and processes of integration of the aviation industry into the system of international relations, the article reveals the tendencies of globalization in the field of aviation of Ukraine.
Стаття присвячена аналізу та розкриттю основних програм та процесів інтеграції авіаційної промисловості в систему міжнародних відносин, розкрито тенденції глобалізації у сфері авіації України.
Статья посвящена анализу и раскрытию основных программ и процессов интеграции авиационной отрасли в систему международных отношений, в статье раскрываются тенденции глобализации в области авиации Украины.
Кафедра менеджменту зовнішньоекономічної діяльності
Новак, Валентина Олексіївна, Валентина Алексеевна Новак, Valentyna Novak, Оксана Миколаївна Кириленко, Оксана Николаевна Кириленко, Oksana Kyrylenko, Катерина Миколаївна Разумова, Екатерина Николаевна Разумова, and Kateryna Razumova. "Управління інформаційними процесами економічної безпеки підприємств." Thesis, Національний університет біоресурсів і природокористування України, 2020. https://er.nau.edu.ua/handle/NAU/49291.
Full textЩепіна, Т. Г., А. Д. Остролуцька, T. G. Schepina, and A. D. Ostrolutska. "Комплексний підхід до між операційних процесів транспортно–складських систем в поштовій логістиці." Thesis, Національний авіаційний університет, 2022. https://er.nau.edu.ua/handle/NAU/54817.
Full textthe synchronization of the processes of transport and warehousing activities of the post office «Ukrposhta» by optimizing the transport of mail, fixing certain post offices for consolidation warehouses, as well as the introduction of a single information system
Мормило, Яков Михайлович. "Підвищення рухливості військових колісних машин шляхом застосування міжколісних диференціалів з гідростатичним блокуванням без фрикційних дисків." Thesis, Національний технічний університет "Харківський політехнічний інститут", 2020. http://repository.kpi.kharkov.ua/handle/KhPI-Press/46109.
Full textThesis for a PhD Degree in Technical science: Specialty 255 – Armament and military equipment (25 – Military sciences, national security, state border security). – National Technical University “Kharkiv Polytechnic Institute”, the Ministry of Education and Science of Ukraine, Kharkiv, 2020. Relevance of the topic. The need for inter-wheel differentials (IWD) arose immediately after the appearance of the first two-wheel drive cars. Most notably, this need was manifested during turning and driving on rough roads. The absence of IWD in such transmissions caused power circulation, unreasonably large additional loads on the drive axle and wheels, increased fuel consumption and high tire wear. With the invention of the traditional symmetric bevel gear IWD, these problems were solved. However, there were other problems associated with the phenomenon of slipping in difficult road conditions. Naturally, this challenge has found a large number of technical solutions that somehow smoothed out the problem, but did not solve it comprehensively. In recent decades, design solutions have emerged in which the differential lock is controlled electronically by a given algorithm, as well as drives in which the traction control system directly controls the input torque of the drive wheel. These solutions are especially effective for electric or hydrostatic motor wheels. However, despite the abundance of technical solutions in the field of differential wheel drive, there is no effective IWD design for military wheeled and multi-purpose full-wheel drive vehicles. The existing designs either still use complete manual lock, or are based on SLLSD that are not able to provide high cross-country ability and good handling at the same time. Therefore, despite the rapid development of electronic control systems and individual electric drives, the development of an efficient, internally automated IWD is topical for military wheeled and multi-purpose full-wheel drive vehicles. The aim of the dissertation is to increase the traction dynamics of wheeled armored personnel carriers and multi-purpose full-wheel drive vehicles in difficult road conditions with high rates of economy and controllability by developing and using IWD with hydrostatic locking based on a gear pump. To achieve this aim it is necessary to solve the following tasks: – to study the influence of the structure and parameters of IWD on the dynamics of acceleration of the car in difficult road conditions using methods of numerical simulation; – to study the influence of the structure and parameters of IWD on the resistance to curvilinear motion and controllability using numerical simulation methods; – to evaluate theoretically and experimentally the possibility of implementing hydrostatic blocking without additional friction disks for the IWD of the BTR-4 armored personnel carrier and determine its necessary technical parameters; – to evaluate experimentally the characteristics of the standard cam IWD of the BTR-4 armored personnel carrier with the full hanging of one of the wheels; – determine the parameters of the IWD with hydrostatic blocking and conduct a study of the selected mobility parameters of the armored personnel carrier BTR-4, equipped with the proposed IWD, using numerical simulation. The scientific novelty of the results. The main scientific results that are submitted to the public defense are: – for the first time, the possibility of creating an IWD with hydrostatic locking without additional friction disks based on a gear pump for a wheeled armored personnel carrier has been scientifically substantiated; – for the first time, an energy method has been proposed for assessing the efficiency of IWD, which, unlike the existing ones, is based on losses not with constant movement, but when the vehicles is accelerated in difficult road conditions to a given speed; – for the first time, a method is proposed for assessing the influence of the structure and parameters of IWD on the resistance to curvilinear movement on paved roads, which, in contrast to existing methods, is based not only on the assessment of losses in the IWD during curvilinear movement, but also on losses due to wheel slippage along the road and an increase in the actual radius turning due to the deviation of the wheels rolling direction and their slipping; – The dependence of the locking moment on the slipping speed for a two-row cam IWD of the BTR-4 armored personnel carrier was experimentally obtained. The practical significance of the results. The studies made it possible to calculate the parameters of the gear pump for hydrostatic locking of the IWD, which, with minor changes, is mounting in the main gear housing of the BTR-4 armored personnel carrier and is able to replace the purchased Russian unit with the worst performance characteristics. The developed methods for evaluating the effectiveness of differentials in straight-ahead acceleration in difficult road conditions and in curved motion on paved roads provide the opportunity to carry out structural-parametric synthesis of not only IWD, but also center differential for military vehicles and multi-purpose full-wheel drive vehicles with mechanical transmission. The practical significance of the dissertation research results is confirmed by acts on the implementation of the proposed methods for evaluating the effectiveness of IWD in the design practice in the State enterprise “Kharkov Machine Building Design Bureau named after A.A. Morozov” and LLC “Mashhydroprivod”. An act was also received on the introduction of methods for evaluating the effectiveness of IWD into the educational process of the NTU “KhPI” when preparing students for specialty 133 – Sectoral Engineering, specializations 133.02 – Automated design of cross-country vehicles. Conclusions on the work: 1) From the analysis of literary sources, it was concluded that there is no technical solution in the field of IWD that would ensure high crossability (including with full hanging of the drive wheels), do not impair handling, have internal automatism, was quite simple and cheap to manufacture and reliable in operation. 2) For wheeled vehicles, the operation of which allows the possibility of hanging one or several wheels when moving, in the IWD, to ensure patency, it is necessary to use either full blocking, or anti-slip systems based on ABS, or self-locking differentials with a blocking moment depending on the difference or square of the difference in the frequency of relative rotation axle shafts and differential housings. The use of complete locking in existing structures requires either a complete stop of the machine before locking (unlocking) differentials or the use of friction discs, the locking of which requires additional power take-off to keep them closed and which, when the machine is actively used in difficult road conditions, wear out intensively. Unfortunately, for the use of traction control systems based on ABS, we do not have well-tested domestic ABS systems that could form the basis for the creation of a traction control system in conditions of military use. Therefore, it is advisable to use IWD with hydrostatic locking without the use of additional friction discs. 3) From the above analysis it follows that the most effective input parameter for most approaches to ensure automatic power distribution between the wheels is the kinematic inconsistency of the rotational speeds of the drive wheels and the position of the steered wheels. 4) When analyzing the patency of wheeled vehicles that allow the possibility of hanging one or several wheels when moving, it is necessary to operate with the concept of the differential locking moment, and not the blocking coefficient. 5) As a result of mathematical modeling and calculations using the BTR-4 armored personnel carrier as an example, the values of the maximum relative rotational speed of the half-axle and the IWD housing were obtained, which can occur due to the difference in the rotational speeds of the wheels of different sides when maneuvering on paved roads. Also obtained are the dependences of the blocking moment of the IWD, necessary to ensure high crossability, on the frequency of the relative rotation of the axle shaft and the housing of the IWD. It was found that the optimum blocking moment should increase from zero to a maximum value of 3000 Nm, respectively, with an increase in the relative rotational speed of the half-axle and differential housing from 80 to 115 min-1. 6) Of the considered constructions of IWD on the dynamics of acceleration in difficult road conditions for average values of the proportionality coefficients, IWD have an advantage in which the degree of blocking depends on the load. 7) With the selected proportionality coefficients of the system for small steering angles (up to 8) in the first three quarters of the safe speed range and in terms of turning resistance and increasing turning radius, IWDs have an advantage, in which the degree of blocking depends on the square of the difference in speed of the half-axles. 8) The IWD, in which the degree of blocking depends on the square of the difference of the speeds of the axle shafts, also have an advantage for large steering angles of the steered wheels in the first half of the safe speed range. But at speeds close to turning over, they are behind from IWD, in which the degree of blocking depends on the load, for any angle of rotation of the steered wheels. 9) The IWD with a traction control system based on ABS are most suitable for use with relatively small values of the imbalance of adhesion coefficients on the sides of the car and integrate them with directional stability systems that allow you to easily change the value of the proportionality coefficients (system setting) depending on the situation. 10) For off-road vehicles, the operation of which does not imply modes with full hanging of the drive wheels, it is possible to use IWD effectively, in which the degree of blocking depends on the load. 11) For off-road vehicles and military wheeled vehicles, during operation of which full hanging of the drive wheels is possible, it is advisable to use an IWD with a locking moment, which depends on the square of the difference in the speeds of rotation of the axle shafts. They can have high energy performance during acceleration with minimal negative impact on the controllability of the machine and at the same time rely not on electronic control systems, but on their own internal automation. 12) The tests showed that the traction force of the drive axle with a double-row cam differential when one of the wheels (right) is fully hung out substantially depends on the speed of the slipping wheel. It reaches a maximum value of 1091 N at a rotational speed of a slip wheel of 399 rpm. This speed corresponds to the rotation of the input flange of the drive axle for the movement of the armored personnel carrier at a speed of 11 m / s (39.6 km / h), after which the differential is jammed. 13) The obtained values for the traction force of the drive axle with a double-row cam differential with full hanging of one of the wheels (right) are insufficient for the armored personnel carrier to overcome obstacles of the “ravine” type or “dune” type with diagonal hanging and obstacles of the “moat” type with sequential suspension of bridges. 14) Based on a gear pump with internal gearing, it is possible to realize a IWD with hydrostatic locking without the use of additional friction disks. This differential has a quadratic dependence of the locking (braking) moment on the difference in the angular velocities of the half-axle and the differential housing. This allows, on the one hand, to obtain almost complete differential blocking during slipping and, on the other hand, to provide minimal turning resistance when maneuvering on paved roads. 15) For the BTR-4 armored personnel carrier, the working volume of the gear pump with internal gearing, which allows maximum grip on the road when locking on a non-skid wheel, is 415 cm3. Such a pump is successfully assembled in the dimensions of the standard main gear (final drive) when replacing the existing cam differential with a classic open differential with bevel gears. 16) The optimum design diameter of the droselling hole is 2 mm. However, depending on the accuracy of manufacture of the gear pump elements and the total volume losses, this value should be experimentally adjusted downward. 17) Cycloidal gear gerotor pumps have been discontinued due to the difficulty of realizing high pressure in them due to the low coefficient of overlap of tooth profiles. For the synthesis of IWD with internal automaticity, which would satisfy the requirements for both traction and vehicle dynamics and at the same time not impede its curvilinear movement, the differential is finally adopted, in which the value of the blocking moment depends on the square of the difference in the angular velocities of the half-axles. 18) MKD with the moment of blocking, which depends on the load (including the standard two-row cam differential), quite successfully compete with the considered differentials with hydrostatic locking in terms of operating efficiency in difficult road conditions, but without fully hanging one of the wheels. 19) For MCD with hydrostatic locking, it is enough to have a diameter of a throttling hole of more than 3 mm for an unhindered start of rotation of the armored personnel carrier and its curvilinear movement without a significant increase in energy consumption and deterioration of controllability over the entire range of travel speeds. 20) In order to obtain the necessary cross-country ability and driving dynamics in difficult road conditions, for a MCD with hydrostatic locking, it is necessary to have a diameter of the droselling hole of not more than 1 mm. 21) To eliminate the contradiction, it is proposed to put a controlled solenoid valve in the gear pump, which in difficult road conditions will allow, at the command of the driver, in any driving mode to reduce the bore to a diameter of less than 1 mm or even completely closing it with the pressure relief valve in mind and volumetric losses in the pump.
Юрик, Наталія Євгенівна, Наталья Евгеньевна Юрик, and N. E. Yuryk. "Антикризова стратегія підприємств машинобудівної галузі." Thesis, Тернопільський національний технічний університет ім. Івана Пулюя, 2011. http://elartu.tntu.edu.ua/handle/123456789/1271.
Full textДисертаційну роботу присвячено розв’язанню проблеми розроблення теоретичних положень та прикладних рекомендацій щодо вибору, формування й реалізації антикризової стратегії підприємств машинобудівної галузі. У роботі висвітлено теоретико-методичні підходи до визначення сутності й значення антикризової стратегії в умовах нестабільного ринкового середовища. Проаналізовано сучасний стан і тенденції розвитку машинобудівних підприємств, особливості їх діагностування та оцінювання чинників, що впливають на кризовий стан підприємств даної галузі. Удосконалено процес оцінювання кризового стану машинобудівного підприємства та обґрунтовано основні принципи розроблення антикризової стратегії підприємства. Запропоновано шляхи удосконалення процесу реалізації антикризової стратегії підприємств машинобудівної галузі.
Диссертация посвящена вопросам разработки теоретических положений и практических рекомендаций по осуществлению выбора, формирования и реализации антикризисной стратегии предприятий машиностроительной отрасли. В первом разделе «Теоретические и прикладные основы формирования и реализации антикризисной стратегии машиностроительных предприятий» раскрыто теоретико-методические подходы к определению сущности и значения антикризисной стратегии в условиях нестабильной рыночной среды. Углублено понимание терминов «кризисные явления», «кризисная ситуация», «антикризисная стратегия», предложено классификацию антикризисных стратегий, раскрыто роль и значение антикризисных стратегий в системе стратегий предприятий, проанализировано действующие подходы к технологии реализации антикризисных стратегий в условиях как стабильной внешней среды, так и возникновения мгновенных кризисных ситуаций. Во втором разделе “Диагностирование состояния и анализ основных аспектов функционирования предприятий машиностроительной отрасли в условиях кризиса” проанализировано современное состояние и тенденции развития предприятий машиностроения, определены факторы, влияющие на их кризисное состояние, доведено необходимость диагностирования состояния отечественных предприятий с целью выбора и реализации антикризисной стратегии. В третьем разделе ”Разработка и реализация антикризисной стратегии машиностроительного предприятия” усовершенствовано процесс оценивания кризисного состояния машиностроительного предприятия, обосновано основные принципы разработки антикризисной стратеги предприятия, предложено структурно-логическую схему комплексного диагностирования кризисного состояния предприятия и разработано блок-схему оценивания уровня кризисного состояния машиностроительного предприятия. Предложено пути усовершенствования процесса реализации антикризисной стратеги предприятий машиностроительной отрясли, путем разработки матрицы внедрения антикризисной стратегии. С целью оценивания выбора и реализации антикризисной стратегии предложено метод трендового прогнозирования уровня прибыльности отечественных предприятий.
Dissertation deals with the development of the theoretical items and applied recommendations concerning selection, formation and implementation of anti-crisis strategy of the mechanical engineering enterprises. The theoretical and methodological approaches to determine the essence and significance of anti-crisis strategies in the conditions of unstable market environment are described in the thesis. The current state and trends of the mechanical engineering enterprises are analyzed. The features of the mechanical engineering enterprises diagnosis and evaluation of the factors affecting the crisis state of the mechanical engineering enterprises are described in the theses. The evaluation of the crisis state of the mechanical engineering enterprise is improved. The basic principles of developing the anti-crisis strategy of the enterprise are substantiated. The ways of improving the implementation of the anti-crisis strategy of the mechanical engineering enterprise are proposed.
Желізняк, Микола Мирославович. "Розробка інформаційного табло за принципом Боба Бліка." Master's thesis, 2018. http://elartu.tntu.edu.ua/handle/lib/24025.
Full textВступі; Науково-дослідницька частина; Дослідницько-конструкторська частина; Частина мікропроцесорної техніки та САПР; Частина Обґрунтування економічної ефективності; Частина Охорона праці та безпека в надзвичайних ситуаціях; Частина Екологія; Висновок.