Электроснабжение установки перекачки нефти п. Пионерный ОАО «Томскнефть»

РЕФЕРАТ Выпускная квалификационная работа 149 с., 23 рис., 32 табл., 29 источников, 6 прил. Ключевые слова: нефтепровод, насос, электрооборудование, схема электроснабжения, линия, сеть, электроприемник, нагрузка, оборудование, защита, ток, напряжение, мощность. Объектом исследования является электрическая часть УПН п. Пионерный ОАО «Томскенефть». Цель работы – проектирование схемы электроснабжения предприятия, выбор оборудования. В процессе исследования проводился сбор исходных данных в ходе производственной практики на объекте исследования. В результате была спроектирована схема электроснабжения от подстанции энергосистемы, до конечного электроприемника. Были выбраны кабели и провода, коммутационное оборудование, были сделаны необходимые проверки. Также результатом работы сталESSAY Final qualifying work 149 p., 23 fig., 32 tab., 29 sources, 6 adj. Keywords: oil, pump, electrical equipment, power supply circuit, line, network, power-consuming equipment, load equipment, protection, current, voltage, power. The object of research is the electrical part of UPN claim. Pionerny of "Tomskeneft". The purpose of work - designing enterprise power scheme, the choice of equipment. The study was conducted to collect baseline data in the course of practical training on the subject of the study. As a result, power supply circuit has been designed from the substation grid, appliance, to the end. Were selected cables and wires, switching equipment, the necessary checks have been made. It is also the result of the work became an economic calculation of capital costs for the con

Functional tissue engineering of ligament healing

Ligaments and tendons are dense connective tissues that are important in transmitting forces and facilitate joint articulation in the musculoskeletal system. Their injury frequency is high especially for those that are functional important, like the anterior cruciate ligament (ACL) and medial collateral ligament (MCL) of the knee as well as the glenohumeral ligaments and the rotator cuff tendons of the shoulder. Because the healing responses are different in these ligaments and tendons after injury, the consequences and treatments are tissue- and site-specific. In this review, we will elaborate on the injuries of the knee ligaments as well as using functional tissue engineering (FTE) approaches to improve their healing. Specifically, the ACL of knee has limited capability to heal, and results of non-surgical management of its midsubstance rupture have been poor. Consequently, surgical reconstruction of the ACL is regularly performed to gain knee stability. However, the long-term results are not satisfactory besides the numerous complications accompanied with the surgeries. With the rapid development of FTE, there is a renewed interest in revisiting ACL healing. Approaches such as using growth factors, stem cells and scaffolds have been widely investigated. In this article, the biology of normal and healing ligaments is first reviewed, followed by a discussion on the issues related to the treatment of ACL injuries. Afterwards, current promising FTE methods are presented for the treatment of ligament injuries, including the use of growth factors, gene delivery, and cell therapy with a particular emphasis on the use of ECM bioscaffolds. The challenging areas are listed in the future direction that suggests where collection of energy could be placed in order to restore the injured ligaments and tendons structurally and functionally

On a possible mechanism of Alpine debris flows

The phenomenology and previous mechanical theories
 of Alpine debris flows are reviewed. A new model for the mechanics of such
 debris flows is proposed which is based on the notion of dispersive pressure
 occurring in shear flows introduced by Bagnold. It is shown that the values
 of the dynamical variables required by this model are of the order of magnitude
 of those observed in nature

1000 Hz- versus 226 Hz-Tympanometry - Which method is more helpful?

Einleitung: In der pädaudiologischen Diagnostik kann die Mittelohrinspektion insbesondere bei Säuglingen in einigen Fällen zu Schwierigkeiten führen, die durch enge Gehörgänge und Gegenwehr der kleinen Patienten bedingt sein können. Die verlässliche Überprüfung der Mittelohrdruckverhältnisse durch die Tympanometrie ist deshalb für den Pädaudiologen von großer Bedeutung. In der vorliegenden Studie wurde überprüft, ob die Verwendung eines 226Hz- oder eines 1000Hz-Sondentons die tatsächlich vorliegenden Mittelohrbelüftungsverhältnisse besser widerspiegelt.Material und Methode: Im Rahmen dieser Studie wurde bei 260 Kindern (520 Ohren) im Rahmen der pädaudiologischen Diagnostik neben einer binokular-mikroskopischen Untersuchung sowohl eine 226Hz- als auch zusätzlich eine 1000Hz-Tympanometrie durchgeführt. Ergebnisse: Bei 134 Ohren wurde von den drei beteiligten Pädaudiologen binokular-mikroskopisch mit hoher Sicherheit ein Paukenerguss diagnostiziert. Eine typische Ergusskurve zeigte sich bei der 226Hz-Tympanometrie jedoch nur in 38 Fällen. Unter Verwendung des 1000Hz-Sondentons konnte die Diagnose hingegen bei 121 Ohren bestätigt werden.Diskussion: Paukenergüsse lassen sich bei der tympanometrischen Untersuchung signifikant häufiger mit einem 1000Hz-Sondenton nachweisen. Gerade bei Säuglingen, bei denen Probleme bei der Erhebung eines sicheren Ohrbefundes bestehen, sollten die Druckverhältnisse im Mittelohr deshalb nach Möglichkeit mit einem 1000Hz- und nicht mit einem 226Hz-Sondenton überprüft werden

Designing an ICT tool platform to support SME business model innovation: Results of a first design cycle

Business model innovation (BMI) is becoming increasingly relevant for enterprises as they are faced with profound changes like digitalization. While business model thinking in academia has advanced, practical tooling that supports business model innovation for small and medium sized enterprises (SMEs) is still lacking. In this paper, we design, implement and evaluate an online platform with ICT-enabled tooling that supports business model innovation by SMEs. Based on interviews with ten SMEs and SME helpers, we define requirements for the BMI tooling platform. The implemented platform offers downloadable tools, decision support for finding the proper tooling, and interactive features for building communities of SMEs. Evaluation through log data analysis and informal interviews shows that the platform is usable and provides a relevant overview of BMI tooling, although several improvements are still suggested. As next steps, we will (1) create prefilled tools and templates to speed up the process of BMI; (2) create educational videos on how to use the tooling; (3) define paths on how to move from one tool to another; and (4) enhance the community features on the platform. The paper contributes to understanding how academic conceptualizations of BMI can be transferred into practically valuable artefacts for SMEs.Information and Communication Technolog