Reliability is one of the most critical performance measures of guided missile systems. It is directly related to missile mission success. In order to have a high reliability value, reliability analysis should be carried out at all phases of the system design. Carrying out reliability analysis at all the phases of system design helps the designer to make reliability related design decisions in time and update the system design. In this study, reliability analysis process performed during the conceptual design phase of a Medium Range Anti-Tank Missile System Inertial Measurement Unit (IMU) was introduced. From the reliability requirement desired for the system, an expected IMU reliability value was derived by using reliability allocation methods. Then, reliability prediction for the IMU was calculated by using Relex Software. After that, allocated and predicted reliability values of the IMU were compared. It was seen that the predicted reliability value of the IMU did not meet the required reliability value. Therefore, reliability improvement analysis was carried out.

In 2008 Russia surprised the West by going to war with Georgia. While several analyses have pointed to separate actions by NATO and the West as having influenced the 2008 war, this paper endeavors to show that the combined actions of the West and NATO since the fall of the Soviet Union created a security dilemma for Russia. Because the West refused to properly acknowledge and address Russia’s dilemma, the West inadvertently created the conditions which led to the culmination of Russia’s security dilemma in the form of an invasion of Georgia. Russia’s war with Georgia was less an attempt to protect Russian citizens and prevent atrocities as it was a rebuttal of Western actions. This thesis examines the security dilemma and cooperation theories as presented by Dr. Robert Jervis, and looks specifically at Western-Russian relations relating to three spheres: NATO expansion and Western marginalization of Russia, Western unilateral and extra-U.N. military aggression, and Western anti-ballistic missile defense initiatives and programs. Western actions relating to these three spheres created the conditions for the war, and specifics within the Caucasus region and relating to separatist conflicts drove Russia to deem a war with Georgia a politically safe rebuttal to the West. This paper also examines continued Western refusal to acknowledge Russia’s dilemma and developing conditions, as they relate to the three spheres of NATO expansion, unilateral military action and missile defenses, which could potentially lead to further conflict between Russia and the West. / text

Föreliggande arbete tar sin utgångspunkt i Försvarsmaktens befintliga förmåga att verka med pansarvärnsrobotar. Med syfte att undersöka om det eventuellt finns ett tomrum att fylla för pansarbrytande robotsystem och att jämföra befintligt system mot föregående och ge förslag på önskvärda förmågor. Ur historik, äldre studier, teknisk data från föregående system och intervjuer dras slutsatser som ligger till grund för värderingar av det existerande behovet. Resultatet visar att pansarvärnsrobot 57 har god möjlighet till att lösa given uppgift om systemet tillförs i större omfattning inom skytteförbanden. Miljön styr taktiken, taktiken styr nyttan vilket i sin tur genererar effekt med systemet. En uppgradering av 57-systemet bedöms värt att beakta för försvarsmakten inom ramen för vilka behov som existerar. / Present work is based on the Armed Forces' existing ability to operate with anti-tank missiles. With the objective to investigate whether there is a void to fill for armor piercing missile systems and to compare the existing system with previous and suggest desirable abilities. From history, older studies and technical data from the previous system and interviews are conclusions drawn and underlying the values of the existing need. The results show that anti-tank missile 57 has good potential to solve the given task if the system is applied on a larger scale within infantry units. The environment decide tactic, the tactic control benefits, which in turn generates effect with the system. An upgrade of the 57-system is deemed worth consideration for the armed forces in the context of the needs that exist.

Thesis (Master of Military Studies)-Marine Corps Command and Staff College, 2008. / Title from title page of PDF document (viewed on: Feb 2, 2010). Includes bibliographical references.

Thesis (M.A.)--Brandeis University, 2008. / Title from IR (viewed on May 29, 2009). Includes bibliographical references.

Habilitation--Universität, Frankfurt am Main, 2003. / Series name and numbering written onto page facing t.p. Includes bibliographical references and index.

Abstract Title: The Relationship between Leadership and Organizational Culture Level: Master Degree in Business Administration  Authors: Al Hareere, Rafeh and Bekic, Kenan Supervisor: Maria Fregidou- Malama  Examiner: Ehsanul Huda Chowdhury Date: 2018-10-10 Aim: The aim of the study is to explore the relationship between leadership and organizational culture in a financial organization. The study has been conducted in Handelsbanken, Sweden. Method: The study is based on ten qualitative interviews with managers and employees in Handelsbanken, Mid-Sweden offices. We used inductive approach by comparing findings with existing theory. Result & Conclusions: Leadership depends mostly on corporate values and individuals´ personalities within SHB.  We noticed predominantly notion of transformational leadership, consisting of democratic, empowering and participative leadership. SHB´s corporate culture is strong and cohesive, resembling mostly guided missile type of culture. We argue that leadership and corporate culture affect each other, in case of Swedish Handelsbanken through employee motivation and empowerment and internal recruitment and development of future managers. Suggestions for future research: We suggest a study where the possible existence of transactional and laissez faire leadership could be proven within a financial organization as well as studies on other types of corporate culture and conducting similar studies within financial organizations to make comparisons between the organizations. Contribution of the thesis: This study contributes to theoretical knowledge development about leadership and corporate culture and the interconnection between them within a financial organization, as presented in case of Handelsbanken, Mid-Sweden offices. Key words: Leadership, corporate culture, transformational leadership; democratic, empowering, participative leadership; guided missile corporate culture, financial organization

<div>In order to answer the most pressing scientific questions about the two Martian moons, Phobos and Deimos, new remote sensing observations are required. The best way to obtain global high resolution observations of Phobos and Deimos is through dedicated missions to each body that utilize close-proximity orbits, however much of the orbital tradespace is too unstable to realistically or safely operate a mission.</div><div><br></div><div>This thesis explores the dynamics and stability characteristics of trajectories near Deimos. The family of distant retrograde orbits that are inclined out of the Deimos equatorial plane, known as quasi-satellite orbits, are explored extensively. To inform future mission design and CONOPS, the sensitivities and stability of distant retrograde and quasi-satellite orbits are examined in the vicinity of Deimos, and strategies for transferring between DROs are demonstrated. Finally, a method for designing quasi-satellite science orbits is demonstrated for a set of notional instruments and science requirements for a Deimos remote sensing mission.<br></div>

Megan Ouellette Abstract Abstract This study constitutes an analysis of American conceptualizations of the Czech Republic as presented in presidential materials from 1989 to 2009 and American media reporting the cancellation of the Third Site of ballistic missile defence from 14-25 September 2009. It draws on the previous research offered by constructivist interpretations of international relations and the field of critical geopolitics to explore how, and for what purpose, certain American sources of geopolitical reasoning have portrayed the Czech Republic. By comparing and contrasting the ways in which the Czech Republic has been conceptualised in presidential materials over a period of twenty years and in media sources over a two-week period relative to a particular event, the study identifies trends and thematic (in)consistencies in American "mental maps" of the Czech Republic. It shows the extent to which media reporting on President Obama's ballistic missile defence policy shift recycled pre-existing conceptualizations of the Czech Republic broadcasted on the presidential level over the twenty years prior to the policy shift. The results of content analyses of each set of texts reveal that the Czech Republic holds specific symbolic and strategic value that ultimately points back to a particular...

<p>  </p> <p>High altitude test facilities are needed for ground testing of upper stage rocket engines or small satellite thrusters with high expansion ratio nozzles to ensure full-flowing nozzle conditions. Rocket exhaust diffusers and ejector systems are essential components of these facilities and are frequently used to set desired simulated altitude/low pressure conditions and pump out rocket exhaust products. </p> <p>This dissertation combined experimental and numerical efforts on diffuser-ejector systems. The experimental efforts included the development of a Second Throat Exhaust Diffuser (STED) to aid with the qualification of space thrusters in the Purdue Altitude Chamber Facility. While performing these experiments, we characterized the single and two-stage ejector systems operating in conjunction with the diffuser to obtain and maintain specific simulated altitudes. </p> <p>The concurrent numerical effort focused on validating a Computational Fluid Dynamics (CFD) approach based on Reynolds-averaged Navier–Stokes equations flow simulations. After validating the ejector CFD, we used it to derive a corrective coefficient of a lumped parameter ejector model (LPM) developed previously for the ejectors used in the Purdue Altitude Facility. We created variable coefficient maps for the stages of the two-stage ejector system using the same LPM and the test data from one of our experiments. </p> <p>We designed, manufactured, and then validated a STED for altitude testing of a ~50 lbf hypergolic hybrid motor as a part of a NASA JPL project. The designed STED enabled the operation of the hybrid motor for the full duration of the test firing (about 2 seconds) at a simulated altitude of 102,000 feet, slightly above the targeted altitude of 100,000 feet. We also validated our diffuser CFD approach by creating a simulation using the measured diffuser back pressure and the average motor chamber pressure. </p> <p>We then devised an experiment to investigate several diffuser–ejector system configurations using cold gas thrusters with conical and bell nozzles. The main aim of that experiment was to explore the effects of different thruster nozzle geometries, diffuser geometries, and thruster/ejector operational parameters on the performance of a diffuser–ejector system. For all the configurations tested, we reported on the minimum starting and operating pressure ratios and corresponding correction factors on the normal shock method. The large hysteresis regions obtained mostly with bell nozzles having a high initial expansion angle provided an opportunity to economize the facility resources. In some cases which were later found to violate STED second throat contraction limits, we experienced a choking flow at the second throat. Then, we studied the second throat contraction limits in detail using CFD in addition to the experimental data and explored minimum diffuser second throats enabling diffuser starting and improving aerodynamic efficiency. </p> <p>Finally, we machined a larger scale cold gas thruster with different nozzle geometries (having throat diameters in the range of 0.367 – 0.52 inches) from acrylic rods to study possible flow separation and gas condensation events that could occur during tests in the altitude chamber. The main difference here with the previous experiment was that the diffuser (JPL STED) was fixed, and the two-stage ejector system was used to create the necessary back pressure. With the experiments performed at varying axial gaps between the nozzle exit and diffuser inlet, we were able to investigate the effect of that on the diffuser performance. The experimental data collected in this work and the complementary numerical efforts served to generate the operating envelope of the Purdue Altitude Chamber Facility.  </p>