WorldWideScience

Sample records for cruise missile explosion

  1. Attacking the Cruise Missile Threat

    Science.gov (United States)

    2010-07-26

    little warning before a strike. Cruise missiles such as Silkworm and Exocet are designed to fly at “sea-skimming” levels only a few feet above the surface...the SS-N-2 Styx missile, a surface-to-surface antiship cruise missile. Most variants of modern cruise missiles are conversions of the Styx—the Silkworm ...number of Soviet built SS-N-2 Styxes that had been dismounted from boats.23 The Silkworm , the predominant of these variants, is the “Scud” of cruise

  2. Cruise missiles should not stop START

    Energy Technology Data Exchange (ETDEWEB)

    Tsipis, K.

    1988-11-01

    A method for verifying a cruise-missile agreement that would be acceptable to the military, industrial, and intelligence communities in both nations must be as unintrusive as possible, while remaining immune to cheating of any significance. This is the goal of the technical solutions outlined here. The elements of a verification regime described do not require routine, intrusive, on-site visits to naval vessels, aircraft, air bases, or weapons magazines where missiles may be stored. They do not interfere with the operational readiness of the missiles, and they protect legitimate military secrets of the inspected nation. If supported by competent national technical means of verification such as those both sides already employ, with a small number of on-site challenge inspections, a combination of technical solutions and procedures such as these could be effective. They would adequately safeguard the national security and sovereignty of the participating nations while providing policymakers with the option of a treaty that limits the number of long-range nuclear cruise missiles or eliminates them completely. As discussed, there are problems that remain to be addressed, but they should not be allowed to block a U.S.-Soviet agreement significantly reducing strategic nuclear arsenals.

  3. Aerodynamic performances of cruise missile flying above local terrain

    Science.gov (United States)

    Ahmad, A.; Saad, M. R.; Che Idris, A.; Rahman, M. R. A.; Sujipto, S.

    2016-10-01

    Cruise missile can be classified as a smart bomb and also Unmanned Aerial Vehicle (UAV) due to its ability to move and manoeuvre by itself without a pilot. Cruise missile flies in constant velocity in cruising stage. Malaysia is one of the consumers of cruise missiles that are imported from other nations, which can have distinct geographic factors including their local terrains compared to Malaysia. Some of the aerodynamic performances of missile such as drag and lift coefficients can be affected by the local geographic conditions in Malaysia, which is different from the origin nation. Therefore, a detailed study must be done to get aerodynamic performance of cruise missiles that operate in Malaysia. The effect of aerodynamic angles such as angle of attack and side slip can be used to investigate the aerodynamic performances of cruise missile. Hence, subsonic wind tunnel testings were conducted to obtain the aerodynamic performances of the missile at various angle of attack and sideslip angles. Smoke visualization was also performed to visualize the behaviour of flow separation. The optimum angle of attack found was at α=21° and side slip, β=10° for optimum pitching and yawing motion of cruise missile.

  4. Passive Acoustic Radar for Detecting Supersonic Cruise Missile

    Institute of Scientific and Technical Information of China (English)

    XIAO Feng; XIAO Hui

    2005-01-01

    A Passive Acoustic Radar is presented as a necessary complement to electromagnetic wave radar, which will be expected to be an effective means for detecting cruise missiles. Acoustic characteristics of supersonic flying projectiles with diverse shapes are expounded via experiment. It is pointed out that simulation experiment could be implemented using bullet or shell instead of cruise missile. Based on theoretical analysis and experiment, the "acoustic fingerprint" character of cruise missile is illustrated to identify it in a strong noise environment. After establishing a locating mathematical model,the technique of acoustic embattling is utilized to resolve a problem of confirming the time of early-warning, considering the fact that velocity of sound is much slower than that of light. Thereby, a whole system of passive acoustic radar for detecting supersonic cruise missile is formed.

  5. The Joint Cruise Missiles Project: An Acquisition History

    Science.gov (United States)

    1982-08-01

    his staff at the Air Force ALCM System Project Office. The authors are, of course , solely responsible for the accuracy and interpretation of the...meaning) Sea launched cruise missile (current meaning) SPOC System Project Officers Council SRAM Short range attack missile STCM Supersonic tactical...Council ( SPOC ), com- posed of the directors of the four major missile systems (consisting at that time of the GLCM, ship- and sub-launched SLCM, and the

  6. Terrain Contour Matching (TERCOM): A Cruise Missile Guidance Aid

    Science.gov (United States)

    Golden, Joe P.

    1980-12-01

    The Cruise Missile is guided by an inertial guidance system aided by an updating technique called Terrain Contour Matching (TERCOM). Chance-Vought first proposed the terrain correlation technique in the late 1950's. Since that time TERCOM has evolved into a reliable, accurate, all weather, day and night method of position fixing and updating for cruise missiles. A brief history of TERCOM development will be presented giving results where possible. A description of TERCOM and how is works will be discussed. A snapshot of the present TERCOM status and future planned developments will be addressed.

  7. The Joint Cruise Missiles Project: An Acquisition History--Appendixes

    Science.gov (United States)

    1982-08-01

    21 TERCOM and Terrain Following Operation.......................22 DMA/JCMPO Organizational Interactions...50 MRASM (AGM-1091) Test Program................................52 Cruise Missile TERCOM and Survivability Flight Tests...data package TEL Transporter erector launcher T&E Test and evaluation TEMP Test and evaluation master plan TERCOM Terrain contour matching UFC Unit

  8. Controlling The Spread of Land-Attack Cruise Missiles.

    Science.gov (United States)

    2007-11-02

    Debate in the ’New’ European Community," Arms Control Today 23, no. 2 (March 1993): 12. 38 Controlling the Spread of Land-Attack Cruise Missiles...of temperature, pressures or atmosphere in autoclaves or hydro- claves when used for the production of composites or partially processed composites

  9. Shipborne Laser Beam Weapon System for Defence against Cruise Missiles

    Directory of Open Access Journals (Sweden)

    J.P. Dudeja

    2000-04-01

    Full Text Available Sea-skim~ing cruise missiles pose the greatest threat to a surface ship in the present-day war scenario. The convenitional close-in-weapon-systems (CIWSs are becoming less reliable against these new challenges requiring extremely fast reaction time. Naval Forces see a high energy laser as a feasible andjeffective directed energy weapon against sea-skimming antiship cruise missiles becauseof its .ability to deliver destructive energy at the speed of light on to a distant target. The paper comparesthe technology and capability of deuterium fluoride (DF and chemical-oxygen-iodine laser (COIL in effectively performing the role of a shipborne CIWS altainst sea-skimming missiles. Out of these twolasers, it is argued that DF laser wo.uld be more effective a,s a shipborne weapon for defence against sea-skimmin,g cruise missiles. Besides the high energy laser as the primary (killing laser, othersub-systems required in the complete weapon system would be: A beacon laser to sense phase distor'ions in the primary laser, adaptive optics to compensate the atmospheric distortions, beam-directing optics, illuminating lasers, IRST sensors, surveillance and tracking radars, interfacing system, etc.

  10. Cruise Missile Attack Are We Prepared

    Science.gov (United States)

    2007-03-09

    to be met to make its air and missile defense systems interoperable with others throughout the military because the requirements for SIAP [Single...Single Integrated Air Picture ( SIAP ) and Integrated Fire Control (IFC). SIAP “is the product of fused, near real-time and real-time data from...guidance of the Assistant Secretary of the Army for Acquisition, Logistics, and Technology (ASAALT), the Joint SIAP System Engineering Organization (JSSEO

  11. The Evolution of the Cruise Missile

    Science.gov (United States)

    1985-09-01

    device as a target in operations with the cartier Ranger in August, 1938. These and subqueat practice sessions revealed shockingly poor US Navy... market within a very short time." TIhe author speculated that the device could destroy an entire town as far as 100 miks away with no loss te the...downed 72.8 percent of the 125 missiles observed. Nevertheless, one flying bomb hit Smithfield Market on 8 March, causing 233 casualties.61 In all, the

  12. Open Architecture as an Enabler for FORCEnet Cruise Missile Defense

    Science.gov (United States)

    2007-09-01

    battlespace via the FORCEnet information network. Current capability gaps include a lack of common configuration and Fire Control Quality ( FCQ ...connectivity among platforms that is needed to achieve and maintain a robust cruise missile defense. FCQ is defined as data obtained with the sufficient...platform, or a combination of the two. With Fire Control Quality ( FCQ ) threat data from a remote sensor, the remote unit can initiate a launch

  13. Discrete Sliding Mode Control for Hypersonic Cruise Missile

    Directory of Open Access Journals (Sweden)

    Yong Hua Fan

    2016-01-01

    Full Text Available A discrete variable structure control (DVSC with sliding vector is presented to track the velocity and acceleration command for a hypersonic cruise missile. In the design an integrator is augmented to ensure the tracking with zero steady-state errors. Furthermore the sliding surface of acceleration is designed using the error of acceleration and acceleration rate to avoid the singularity of control matrix. A proper power rate reaching law is utilized in this proposal; therefore the state trajectory from any initial point can be driven into the sliding surface. Besides, in order to validate the robustness of controller, the unmolded dynamic and parameter disturbance of the missile are considered. Through simulation the proposed controller demonstrates good performance in tracking velocity and acceleration command.

  14. Year 2000 small engine technology payoffs in cruise missiles

    Science.gov (United States)

    Singh, B.; Benstein, E. H.

    1986-01-01

    A study has been conducted for advanced small (450-850 pounds thrust) gas turbine engines for a subsonic strategic cruise missile application, using projected year-2000 technology. Engine performance and configuration analyses were performed for two and three spool turbofan and propfan engine concepts. Mission and Life Cycle Cost (LCC) analyses were performed in which the candidate engines were compared to the baseline engine over a prescribed mission. The advanced technology engines reduced system LCC up to 41 percent relative to the baseline engine. The critical aerodynamic materials and mechanical systems necessary for turbine engine technology were identified.

  15. Defense Science Board Task Force on Defense Strategies for Advanced Ballistic and Cruise Missile Threats

    Science.gov (United States)

    2017-01-01

    REPORT OF THE DEFENSE SCIENCE BOARD TASK FORCE ON Defense Strategies for Advanced Ballistic and Cruise Missile Threats January 2017 Office of... Science Board (DSB). The DSB is a Federal Advisory Committee established to provide independent advice to the Secretary of Defense. Statements, opinions... Science Board Task Force on Defense Strategies for Advanced Ballistic and Cruise Missile Threats completed its information-gathering in February 2016

  16. A Study of the Effects of Sensor Noise and Guidance Laws on SAM Effectiveness Against Cruise Missiles

    Science.gov (United States)

    2015-06-01

    k guidance acceleration command vector xviii THIS PAGE INTENTIONALLY LEFT BLANK xix EXECUTIVE SUMMARY Cruise missile (CM) technology is...Germany, Netherlands, UK, Denmark Turkey, Romania, Poland, and Spain ) contributed to the Maritime Theatre Missile Defence Forum to obtain an impressive

  17. 3D-Route Planning Method to Realize Missile Cruise Flight

    Institute of Scientific and Technical Information of China (English)

    WANG Zheng-jie; FAN Chen; ZHU Qun-Min; TANG Wei

    2007-01-01

    In order to increase the aircraft's survival in the flight mission, it is necessary to carry out flight mission planning, which includes TF/TA\\+2(terrain following/terrain avoidance/threat avoidance).An approach to 3D-route planning based on A* heuristic search algorithm was selected to determine the routes of fiber optic guidance missile's cruise segment.The cost function was discussed, which was mainly related to the physical obstacle, threat exposure, and aircraft performance characteristics.The digital map techniques were presented, which included setting "no-go" area according to fiber's safety requirement.The optimal or the sub-optimal route was obtained, while the cost function constraints were satisfied and the stored terrain obtained from a real terrain was digitized.The algorithm is validated through simulation and can fulfill the route planning task which focuses on the cruise segment of fiber optic guidance missile.

  18. Average-passage simulation of counter-rotating propfan propulsion systems as applied to cruise missiles

    Science.gov (United States)

    Mulac, Richard A.; Schneider, Jon C.; Adamczyk, John J.

    1989-01-01

    Counter-rotating propfan (CRP) propulsion technologies are currently being evaluated as cruise missile propulsion systems. The aerodynamic integration concerns associated with this application are being addressed through the computational modeling of the missile body-propfan flowfield interactions. The work described in this paper consists of a detailed analysis of the aerodynamic interactions between the control surfaces and the propfan blades through the solution of the average-passage equation system. Two baseline configurations were studied, the control fins mounted forward of the counter-rotating propeller and the control fins mounted aft of the counter-rotating propeller. In both cases, control fin-propfan separation distance and control fin deflection angle were varied.

  19. Advanced technology payoffs for future rotorcraft, commuter aircraft, cruise missile, and APU propulsion systems

    Science.gov (United States)

    Turk, M. A.; Zeiner, P. K.

    1986-01-01

    In connection with the significant advances made regarding the performance of larger gas turbines, challenges arise concerning the improvement of small gas turbine engines in the 250 to 1000 horsepower range. In response to these challenges, the NASA/Army-sponsored Small Engine Component Technology (SECT) study was undertaken with the objective to identify the engine cycle, configuration, and component technology requirements for the substantial performance improvements desired in year-2000 small gas turbine engines. In the context of this objective, an American turbine engine company evaluated engines for four year-2000 applications, including a rotorcraft, a commuter aircraft, a supersonic cruise missile, and an auxiliary power unit (APU). Attention is given to reference missions, reference engines, reference aircraft, year-2000 technology projections, cycle studies, advanced engine selections, and a technology evaluation.

  20. Adaptive Sliding Mode BTT Autopilot for Cruise Missiles with Variable-Swept Wings

    Institute of Scientific and Technical Information of China (English)

    Wei-Ming Li; Rui-Sheng Sun; Hong-Yang Bai; Peng-Yun Liu

    2014-01-01

    In this paper, an adaptive sliding mode method was proposed for BTT autopilot of cruise missiles with variable-swept wings. To realize the whole state feedback, the roll angle, normal overloads and angular rates were considered as state variables of the autopilot, and a parametric sliding mode controller was designed via feedback linearization. A novel parametric adaptation law was put forward to estimate the nonlinear time-varying parameter perturbations in real time based on Lyapunov stability theory. A sliding mode boundary layer theory was adopted to smooth the discontinuity of control variables and eliminate the control chattering. The simulation was presented for the roll angle and overload commands tracking in different configuration schemes. The results indicated that the controlled system has robust dynamic tracking performance in condition of the large-scale aerodynamic parametric variety resulted from variable-swept wings.

  1. Genetic algorithm to solve constrained routing problem with applications for cruise missile routing

    Science.gov (United States)

    Latourell, James L.; Wallet, Bradley C.; Copeland, Bruce

    1998-03-01

    In this paper the use of a Genetic Algorithm to solve a constrained vehicle routing problem is explored. The problem is two-dimensional with obstacles represented as ellipses of uncertainty surrounding each obstacle point. A route is defined as a series of points through which the vehicle sequentially travels from the starting point to the ending point. The physical constraints of total route length and maximum turn angle are included and appear in the fitness function. In order to be valid, a route must go from start to finish without violating any constraint. The effects that different mutation rates and population sizes have on the algorithm's computation speed and ability to find a high quality route are also explored. Finally, possible applications of this algorithm to the problem of route planning for cruise missiles are discussed.

  2. A Low-Visibility Force Multiplier: Assessing China’s Cruise Missile Ambitions

    Science.gov (United States)

    2014-04-01

    and ballistic missile force will be far less effective than its numbers would indicate. 18 Forensic data may not have been collected and analyzed for...and ballistic missiles; some has focused on Chinese efforts to develop an antiship ballistic missile that might tar- get U.S. aircraft carriers. One...electronically scanned array AIP air-independent propulsion ARM antiradiation missile ASAT antisatellite ASBM antiship ballistic missile ASCM antiship

  3. Joint Counterair and Theater Missile Defense Doctrine to Defend against Unmanned Aerial Vehicles and Cruise Missiles in Asymmetric Warfare

    Science.gov (United States)

    2009-02-12

    state lasers, and a megawatt-class Chemical Oxygen Iodine Laser (COIL) to detect, track, target, and destroy ballistic missiles shortly after launch... disproportionate cost tradeoff between threat weapon systems and the proposed interceptors. With a price tag of over $1M per interceptor such as Patriot

  4. What to Do About That Pack of Wolves at the Door: A Binational Organization and Acquisitions Approach to Homeland Cruise Missile Defense

    Science.gov (United States)

    2016-04-04

    Russia’s desire for increased military power to counter US primacy. In order to codify the ways and means to this end, Russian President Vladimir Putin ...5 Russia ... Russia have enjoyed a largely uncontested duopoly on cruise missile employment, these increasingly accurate and lethal systems have proliferated widely

  5. 高超声速巡航导弹攻防对抗仿真研究%Study about Hypersonic Cruise Missile Combat Engagement Simulation

    Institute of Scientific and Technical Information of China (English)

    郑祥品; 王志刚

    2012-01-01

    在当前复杂作战环境下,对导弹武器系统进行攻防对抗研究是非常有必要的.针对攻防对抗这一复杂的动态过程,建立了高超声速巡航导弹攻防对抗仿真模型.并在此模型中,分别给出了结果评判模型、作战环境模型和对抗仿真模型.并根据所建立的仿真模型,计算出高超声速巡航导弹的突防概率.仿真算例结果表明,减小高超声速巡航导弹的雷达反射截面积RCS和增大高超声速巡航导弹的巡航速度是提高其突防效能的重要手段.%During current complex combat conditions, investigation of combat engagement of a new technology missile weapon system is necessary. Aimed at the complex dynamic course of combat engagement, a framework for hypersonic cruise missile combat engagement simulation is established. The combat engagement models of offensive side and defensive side are established in this framework, as well as combat environment models and damage probability of the hypersonic cruise missile are computed. Finally, penetration effectiveness of the hypersonic cruise missile is given. The results show that reducing the RCS and increasing the cruise velocity of the hypersonic cruise missile are two important approaches to improve the penetration effectiveness.

  6. An Onboard Transmitting Antenna of Cruise Missile%一种飞航导弹弹载发射天线设计

    Institute of Scientific and Technical Information of China (English)

    何兵; 刘刚; 南楠; 王园园

    2011-01-01

    以飞航导弹弹载数据链为应用背景,通过综合分析、比较、优化和仿真,设计了一种与飞航导弹共形、具有大角域覆盖能力的弹载发射天线。仿真结果说明了该天线性能满足飞航导弹卫星通信需求,在解决工程实际问题的同时,为此类应用提供了一种新型天线方案,为相关设计提供了一种思路。%In the paper,we designed a kind of onboard transmitting antenna of cruise missile through integrated comparison,analysis,optimization and simulation.The antenna is conformal with the cruise missile,and has wide coverage domain and certain anti-jamming capability.The simulation result shows that the designed antenna satisfies all requirements of satellite communication of cruise missile.The paper provides a new antenna designning method and new idea for similar application.

  7. 基于共生仿真的巡航导弹协同作战研究%Research on symbiotic simulation based cruise missile collaborative engagement

    Institute of Scientific and Technical Information of China (English)

    吴红; 杨峰; 王维平

    2012-01-01

    In order to response to complex and diverse battlefield environment, cruise missile needs to carry out task through dynamic collaboration. Nowadays, domestic and international researches which focus on cruise missile collaborative engagement have presented some dynamic cooperative modes, but all they have several drawbacks to some extent. Because of this, this paper puts forward a limited autonomy of central control of distributed collaboration, designs system business logic and analyzes system function in detail, then uses it as the background to carry out system architecture design of remote control collaboration based on symbiotic simulation.%为了应对体系对抗过程中复杂多变的战场环境,巡航导弹需通过动态协同执行作战任务.目前,国内外在巡航导弹协同作战的研究过程中,提出了几种动态协同模式,但都在一定程度上存在局限性.基于此,首先提出有限中央控制的分布式自主协同,对其系统业务逻辑进行了详细的设计和系统功能进行了详细的分析,并以此为背景开展基于共生仿真的远程控制协同系统体系结构设计.

  8. Ballistic & Cruise Missile Threat

    Science.gov (United States)

    2013-01-01

    parade in 2009 and is currently deployed with the Second Artillery Corps. lacm Torgos MUPSOW SS-N-21 AS-4 AS-15 APACHE Popeye Turbo Storm Shadow...less than 300 2013+ ISRAEL Popeye Turbo Air Conventional 300+ 2002 PAKISTAN RA’AD Air Conventional or nuclear 350 Undetermined Babur Ground

  9. 歼击机拦截巡航导弹拦截阵位研究%Research of Lineup of Heading off of Fighter Plane Heading off Cruise Missile

    Institute of Scientific and Technical Information of China (English)

    高晓冬; 于嘉晖; 吴杰; 吕超

    2013-01-01

    为研究歼击机拦截巡航导弹时的拦截阵位问题,构建了歼击机拦截阵位模型。在分析歼击机拦截来袭巡航导弹过程的基础上,根据歼击机的运动模型和歼击机接敌方法,确定了拦截阵位相关参数,并以机载导弹对巡航导弹杀伤概率为目标函数进行仿真研究。仿真结果找出了一定条件下歼击机的最优航向前置角范围,为反巡航导弹作战理论研究提供了参考。%For researching the lineup of the fighter plane heading off the cruise missile, the model of the fighter plane heading off the cruise missile lineup is established. Based on analyzing the process of the fighter plane heading off the cruise missile, the parameters of the lineup is confirmed according to the movement model and the adjacency enemy method of the fighter plane. Aiming at the probability of killing the cruise missile, the simulation is carried out. The best course pre-positive-angle range is found, which makes reference for the theory of the fighter plane heading off the cruise missile.

  10. 32 CFR 644.531 - Warning to public of danger in handling explosive missiles.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 4 2010-07-01 2010-07-01 true Warning to public of danger in handling explosive... Contamination from Proposed Excess Land and Improvements § 644.531 Warning to public of danger in handling... of contaminants remaining on the land and the inherent danger of handling explosives or...

  11. 临近空间高超声速巡航导弹拦截问题研究%Researching Interception of Near-Space Hypersonic Cruise Missile

    Institute of Scientific and Technical Information of China (English)

    孙磊; 黄可西; 常晓飞; 闫杰

    2015-01-01

    临近空间高超声速巡航导弹已逐渐进入武器化进程,对现有空间防御体系提出了严峻挑战。首先通过分析高超声速巡航导弹的典型飞行弹道,指出其巡航段是最为有效的拦截阶段,并提出空射拦截是一种主要拦截方式。其次,为了研究制导律和相关总体参数对拦截弹的拦截能力的影响,基于拦截问题搭建数学模型,并通过大规模系统的拦截弹与目标对抗飞行轨迹仿真,获取拦截弹在不同条件下的立体攻击区域。仿真计算结果表明,为实现对目标的有效拦截,拦截弹的立体攻击区应位于目标的近正迎头空域;在当前的仿真条件下,经典比例制导律无法完成对机动目标的拦截任务;论文得出的拦截范围和相关结论对于拦截弹总体设计具有一定的指导意义。%Near⁃space hypersonic cruise missile has gradually entered the weaponization process, which presents a challenge to existing space defense system. Firstly, we analyze a typical trajectory of hypersonic cruise missile; we point out that its cruise segment is the phase most vulnerable to being intercepted and propose that the air⁃launched interceptor is a major means for performing interception. Secondly, in order to study the influence of the guidance law and the overall relevant parameters on the intercept capability of interceptor, we build a mathematical model based on interception. And by a large⁃scale system flight path simulation of the interceptor flying against target, we obtain the three⁃dimensional attack area of interceptor under different conditions. The simulation results and their a⁃nalysis show preliminarily that, in order to intercept the target effectively, the dimensional attack zone should be lo⁃cated near the target right head airspace. Under current simulation conditions, classic proportional guidance law can not complete the task of intercepting maneuvering target. The

  12. Design of Attitude Control System Based on μ-Synthesis for Morphing Wing Cruise Missile%可变翼巡航导弹μ综合姿态控制系统设计

    Institute of Scientific and Technical Information of China (English)

    舒营恩; 郭建国; 周军

    2013-01-01

    The existing cruise missiles are applied to certain specific missions. The smart morphing cruise missile can morph configuration to adapt to different missions. As morphing wings, dynamics and control characteristics of missile become complex. In order to improve robust performance of the cruise missile, the multi-body dynamic model of morphing cruise missile based on morphing wings, parameter uncertainties and structure uncertainties can be considered by using μ—synthesis. The three—channel robust attitude control law for an example missile was designed. The simulation results show that the designed based on μ- synthesis controller has not only good dynamic performance , but also excellent robust stability and robust performance.%研究巡航导弹稳定性优化控制问题,针对面对称可变翼巡航导弹,利用μ综合方法设计了导弹的姿态控制系统.常规巡航导弹执行任务特点单一,可变翼巡航导弹可以通过改变气动外形实现多任务飞行.然而随着弹翼的变化导致导弹的动力学模型与控制特性更为复杂,为了提高可变翼巡航导弹的鲁棒性能,结合弹翼的变化策略构建可变翼导弹的多体动力学模型,综合考虑控制对象的参数不确定性和结构不确定性,采用μ综合方法设计了算例的三通道控制系统并进行了仿真.仿真结果表明,μ综合姿态控制系统不仅具有良好的动态特性,而且对参数不确定性具有良好的鲁棒稳定性.

  13. A burn mass casualty event due to boiler room explosion on a cruise ship: preparedness and outcomes.

    Science.gov (United States)

    Tekin, Akin; Namias, Nicholas; O'Keeffe, Terence; Pizano, Louis; Lynn, Mauricio; Prater-Varas, Robin; Quintana, Olga Delia; Borges, Leda; Ishii, Mary; Lee, Seong; Lopez, Peter; Lessner-Eisenberg, Sharon; Alvarez, Angel; Ellison, Tom; Sapnas, Katherine; Lefton, Jennifer; Ward, Charles Gillon

    2005-03-01

    The purpose of this study was to review our experience with a mass casualty incident resulting from a boiler room steam explosion aboard a cruise ship. Experience with major, moderate, and minor burns, steam inhalation, mass casualty response systems, and psychological sequelae will be discussed. Fifteen cruise ship employees were brought to the burn center after a boiler room explosion on a cruise ship. Eleven were triaged to the trauma resuscitation area and four to the surgical emergency room. Seven patients were intubated for respiratory distress or airway protection. Six patients had >80 per cent burns with steam inhalation, and all of these died. One of the 6 patients had 99 per cent burns with steam inhalation and died after withdrawal of support within the first several hours. All patients with major burns required escharotomy on arrival to trauma resuscitation. One patient died in the operating room, despite decompression by laparotomy for abdominal compartment syndrome and pericardiotomy via thoracotomy for cardiac tamponade. Four patients required crystalloid, 20,000 mls/m2-27,000 ml/m2 body surface area (BSA) in the first 48 hours to maintain blood pressure and urine output. Three of these four patients subsequently developed abdominal compartment syndrome and died in the first few days. The fourth patient of this group died after 26 days due to sepsis. Five patients had 13-20 per cent bums and four patients had less than 10 per cent burns. Two of the patients with 20 per cent burns developed edema of the vocal cords with mild hoarseness. They improved and recovered without intubation. The facility was prepared for the mass casualty event; having just completed a mass casualty drill several days earlier. Twenty-six beds were made available in 50 minutes for anticipated casualties. Fifteen physicians reported immediately to the trauma resuscitation area to assist in initial stabilization. The event occurred at shift change; thus, adequate support

  14. 15 CFR 742.5 - Missile technology.

    Science.gov (United States)

    2010-01-01

    ... to the design, development, production, or use of missiles. These items are identified in ECCNs on... air vehicle systems (including cruise missile systems, target drones, and reconnaissance drones... the design, development, production, or use of missiles; (iii) The capabilities and objectives of...

  15. Horizontal Route Planning of Cruise Missile Based On the Improved Quantum Genetic Algorithm%基于改进量子遗传法的巡航导弹水平航迹规划

    Institute of Scientific and Technical Information of China (English)

    何兵; 刘刚; 赵鹏涛; 黄宁

    2012-01-01

    航迹规划是巡航导弹任务规划的核心,针对巡航导弹发射目标应满足多性能指标的航迹规划.为确保巡航导弹高效完成作战任务,提出要以巡航导弹水平航迹规划为应用背景,将量子遗传算法应用到巡航导弹的航迹规划中,首先在传统量子遗传算法基础上了引入了量子门旋转角步长动态调整机制、增加了量子交叉操作和量子变异操作,使得改进后的量子遗传算法具有更高的搜索效率.通过仿真验证了改进算法比GA算法、传统QGA算法具有更快的收敛速度和全局搜索能力,适用于巡航导弹的水平航迹规划,为巡航导弹多目标发射规划提供了依据.%Route planning is the most important part of cruise missile mission planning system. The paper mainly did some work on the horizontal route planning of cruise missile using the quantum genetic algorithm. The quantum genetic algorithm was firstly applied to the cruise missile route planning and then some improved strategies were a-dopted on the traditional quantum genetic algorithm, such as adopting the dynamic adjustment mechanism of the rotation of quantum gate and adding the quantum crossover and mutation operation. The the quantum genetic algorithm with the improved strategies had better searching efficiency. Lastly, the simulation shows that the IQGA has faster convergence speed and searching efficiency than the GA and QGA.

  16. Study on Cruise Missile Intelligent Self-Distinguish Attacking Target on Route Based on Similar Compete Neural Network (SCNN)%巡航导弹智能自主在线目标识别选择问题研究

    Institute of Scientific and Technical Information of China (English)

    房茂燕; 汪民乐; 毕义明

    2013-01-01

    巡航导弹智能自主在线目标识别选择是巡航导弹智能自主作战的重要特征之一.主要针对在巡航导弹弹载计算机计算能力弱、反应时间较短的情况下,如何快速地对目标进行识别分类.采用模板匹配方法进行自动目标识别的大量工作在地面进行,降低了弹载计算机的计算量.为了提高在线智能自主目标识别精度和速度,提出了基于相似度竞争网络,以继承竞争网络在模式识别方面快速简单的优点,同时针对竞争网络抗干扰能力差,对模板类型以外目标无法剔除的不足进行改进,很好解决了巡航导弹在线智能自主目标识别的算法问题.最后通过仿真对算法进行验证.%Intelligent self - selecting attacking target (ISAT) on route is one of the most important characters of the cruise missile's intelligent self - attacking. The paper was Mainly for the problem how to quickly identify and classify targets under tha case that onboard computer in cruise missile calculation ability is weak and the reaction time is shorter. Lots of automatic target recognition work using template matching method were done on ground to reduce the calculation amount of on - board computer. Similar competition neural network ( SCNN) was proposed for improving the precision and the speed of the online intelligent autonomous target recognition. The SCNN inherits the competitive neural network's advantages of fast and simple in pattern recognition, at the same time, the problem of poor antijamming ability of the competition networks and the problem that goals o outside the template type cannot be eliminated, were well solved. At the end of the paper,the algorithm was verified by simulation.

  17. Adaptive Missile Guidance Using GPS

    Directory of Open Access Journals (Sweden)

    Pallavi Sharad Rupnar

    2013-05-01

    Full Text Available The name adaptive means we can guide any missile using GPS in any critical conditions. GPS guided missiles, using the exceptional navigational and surveying abilities of GPS, after being launched, could deliver a warhead to any part of the globe via the interface of the onboard computer in the missile with the GPS satellite system.GPS allows accurate targeting of various military weapons including ICBMs, cruise missiles and precision-guided munitions. Artillery projectiles with embedded GPS receivers able to withstand accelerations of 12,000 G have been developed for use in 155mm.GPS guided weapons, with their technological advances over previous, are the superior weapon of choice in modern days

  18. Countering Air and Missile Threats

    Science.gov (United States)

    2012-03-23

    carrying the CMs. (2) SLCMs and ground-launched cruise missiles ( GLCMs ) present opportunities for detection as well as challenges for surveillance...if possible, and engage them before they can navigate to their targets. (6) Training patterns or identifiable launch sequence events for GLCMs are...rarely observed or practiced in an overt environment. Consequently, the probability is small for conclusively identifying a GLCM TEL using current

  19. HAZX Part 1. An Explosives Hazard Assessment Tool

    Science.gov (United States)

    2010-07-01

    hypergolic propellant spacecraft inside the NASA KSC VAB • Effect on 40 occupied buildings adjacent to VAB – On-rail explosion of a Lance Missile • Effect...on launch team in nearby control house Fire-Bee On Rail Explosion VAB spacecraft explosion at height On-rail explosion of Lance missile 23 DDESB

  20. Integrated Air and Missile Defense (IAMD)

    Science.gov (United States)

    2015-12-01

    IBCS. The cruise missile surrogate, an MQM-107 Drone Target, flew a low altitude trajectory against an asset defended by an Army IAMD task force...FY 2048 The difference in the acquisition quantity of 443 and the sustainment quantity of 427 is due to 16 RDT&E prototypes that are not to be

  1. Hyper Velocity Missiles For Defence

    Directory of Open Access Journals (Sweden)

    Faqir Minhas

    2005-10-01

    Full Text Available The paper reviews the history of technical development in the field of hypervelocity missiles. It highlights the fact that the development of anti-ballistic systems in USA, Russia, France, UK, Sweden, and Israel is moving toward the final deployment stage; that USA and Israel are trying to sell PAC 2 and Arrow 2 to India; and that India’s Agni and Prithvi missiles have improved their accuracy, with assistance from Russia. Consequently, the paper proposes enhanced effort for development in Pakistan of a basic hypersonic tactical missile, with 300 KM range, 500 KG payload, and multi-rolecapability. The author argues that a system, developed within the country, at the existing or upgraded facilities, will not violate MTCR restrictions, and would greatly enhance the country’s defense capability. Furthermore, it would provide high technology jobs toPakistani citizens. The paper reinforces the idea by suggesting that evolution in the field of aviation and electronics favors the development of ballistic, cruise and guided missile technologies; and that flight time of short and intermediate range missiles is so short that its interception is virtually impossible.

  2. EFP Warhead Missile Fuze Analysis and Simulation

    Institute of Scientific and Technical Information of China (English)

    LI Wei; FAN Ning-jun; WANG Zheng-jie

    2008-01-01

    The explosive formed penetrator(EFP)warhead missile projects the blast fragments in one direction normal to the missile longitudinal axis.Through analyzing on the two restrictions of EFP warhead explosion:trajectory restriction and attitude requirement,the concept of fuse time-delay tolerance is presented to be the measurement of the time of the EFP warhead explosion.The calculation models of fuze time-delaY tolerance under two restrictions are provided.Some crucial parameters playing important roles in calculation under attitude requirements are simulated.The simulation results show that the engagement plane angle,roll rate and warhead attack standoff influence the tolerance dramatically.

  3. Absolute and contrast infrared signatures from missile noses

    Science.gov (United States)

    Tofani, Alessandro

    1990-10-01

    The infrared radiant intensity and radiative contrast produced by the aerodynamic and solar heating of missile noses have been obtained by computer simulating the corresponding temperature distributions and by taking into account the effects of both atmosphere (absorption and self-emission) and target geometry (distance, aspect and elevation angles). Six target classes have been considered, including cruise missiles, air-to-air and surface-to-surface missiles, and ballistic missiles. The comparison between radiative quantities in the 3 to 5 μm and S to 12 μm atmospheric transmittance windows gives the optimum spectral band for target detection in each point of its trajectory.

  4. Missile Aerodynamics (Aerodynamique des Missiles)

    Science.gov (United States)

    1998-11-01

    guerre froide la production des missiles a baisse’, avec pour consequence une diminution des budgets de d6veloppement. Les nouveaux types de conflits ...Roma) Directeur - Gestion de l’information LUXEMBOURG (Recherche et developpement) - DRDGI 3 Voir Belgique Ministbre de la Difense nationale NORVEGE

  5. Gauging the Influence of Technology on Tactical Missiles of the Future(Short Communication

    Directory of Open Access Journals (Sweden)

    Mark L. Bundy

    2002-01-01

    Full Text Available Tactical missiles, carrying kinetic energy, high explosives, or multiple submunitions are an integral part of the current and future US Army weapons inventory. Naturally, the number of missiles that can be stowed on any mobile launch platform depends on the size of the missile. Advances in rocket propulsion efficiency and improvements in guidance systems may make it possible to reduce missile size without a proportionate decrease in effectiveness. A primitive I-DOF computer model is used here to show how advances in missile technology might allow smaller missiles in the future to carry out the mission of today's larger missiles. A scaled-down version of a typical current generation missile is taken as the next generation missile. Hypothetical improvements in this smaller missile are then chosen in four basic areas-propellant impulse, burn time, weight fraction, and aerodynamic drag.-with the effects on lethality reported in a nondimensional format.

  6. Coalition Hakes an Explosive Move

    Institute of Scientific and Technical Information of China (English)

    Ni Yanshuo

    2011-01-01

    @@ WHEN Rafale, Mirage 2000 and other fighter-bombers from Western coalition forces circled the Mediterranean region bound for Libya and Tomahawk cruise missiles whistled into the North African country, the world held its breath.Domestic street protests had moved to civil conflicts and foreign military operations in little over a month.

  7. Coalition Makes an Explosive Move

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    France-led coalition forces’ military strikes against Libya may increase instability WHEN Rafale,Mirage 2000 and other fighter-bombers from Western coalition forces circled the Mediterranean region bound for Libya and Tomahawk cruise missiles whistled into the North African country,the world held its breath.Domestic

  8. Advanced Missile Signature Center

    Data.gov (United States)

    Federal Laboratory Consortium — The Advanced Missile Signature Center (AMSC) is a national facility supporting the Missile Defense Agency (MDA) and other DoD programs and customers with analysis,...

  9. 15 CFR 744.3 - Restrictions on Certain Rocket Systems (including ballistic missile systems and space launch...

    Science.gov (United States)

    2010-01-01

    ... Vehicles (including cruise missile systems, target drones and reconnaissance drones) End-Uses. 744.3... missile systems, target drones and reconnaissance drones) End-Uses. (a) General prohibition. In addition... transfer (in-country) you know that the item: (1) Will be used in the design, development, production...

  10. Computer simulation of absolute and contrast infrared signatures from missile noses

    Science.gov (United States)

    Tofani, Alessandro

    1992-03-01

    A computer simulation was performed to obtain an estimate of the infrared radiant intensity and radiative contrast produced by missile noses. The temperature distribution on the nose was computed by taking into account the effects of aerodynamic and solar heating, sky irradiance, and radiative cooling. The corresponding absolute and contrast signatures were obtained by considering the influence of both atmosphere and target geometry, for six target classes, including cruise missiles, tactical ballistic missiles, and air-to-air and surface-to-surface missiles. Both radiant intensity and radiative contrast were computed as a function of missile altitude or missile distance for all targets. A comparison of radiative quantities in the 3- to 5-micron and 8- to 12-micron bands shows that usually the spectral region that gives the strongest signal is not the one that gives the highest contrast.

  11. Shape Optimization of Cruise Missile Based on the Concept of Telescopic Wing%伸缩弹翼巡航导弹气动外形优化研究

    Institute of Scientific and Technical Information of China (English)

    王江华; 谷良贤; 龚春林

    2009-01-01

    基于一种伸缩弹翼改变巡航导弹外形的概念,提出超声速巡航与亚声速盘旋相结合的飞行任务,使用Missile Datcom作为气动计算的工具,分别对固定翼、两级伸缩翼和三级伸缩翼的外形参数进行了优化,使三种不同弹翼导弹完成相同飞行任务的燃料消耗分别最小,优化方法选取遗传算法与模式搜索法相结合的混合优化策略.优化结果显示,两级、三级伸缩翼巡航导弹相对固定翼巡航导弹燃料消耗量分别减少7.8%和12%,表明伸缩弹翼有效提高了巡航导弹在整个飞行任务中的气动性能.

  12. Analysis Of The Infrared Emission Due To Aerodynamic Heating Of Missile Domes

    Science.gov (United States)

    Tofani, Alessandro

    1989-09-01

    A computer simulation of head-on infrared emission from missile noses has been performed. Both cruise missiles and tactical ballistic missiles were considered; results indicate a strong dependence of the emitted radiation on physical and geometrical properties of aerodynamic surfaces, flow character in the boundary layer and atmospheric characteristics. The model allows to give an order-of-magnitude estimate of radiant intensity in the 8-12 μm and 3-5 μm spectral bands and to determine their relative merits as far as the target detection is concerned.

  13. Missiles for Asia The Need for Operational Analysis of U.S. Theater Ballistic Missiles in the Pacific

    Science.gov (United States)

    2016-01-01

    attack a skilled TEL force. During the Gulf War, Iraqi TELs were able to continue firing TBMs at Israel , Saudi Arabia, and Bahrain despite a concerted...1, 2015: http://www.defenseindustrydaily.com/agm-158-jassm-lockheeds- family-of-stealthy-cruise-missiles-014343/ Binnie, Jeremy, “ Israel , Syria...Secretary of the Army and was conducted within the RAND Arroyo Center’s Strategy, Doctrine, and Resources Program. RAND Arroyo Center, part of the RAND

  14. Explosion mitigation by water mist

    NARCIS (Netherlands)

    Wal, R. van der; Cargill, S.; Longbottom, A.; Rhijnsburger, M.P.M.; Erkel, A.G. van

    2010-01-01

    The internal explosion of an anti-ship missile or stored ammunition is a potentially catastrophic threat for a navy vessel. These events generally cause heavy blast loading and fragments to perforate the ship structure. As a solution to reduce the blast loading, the compartment can be filled with

  15. Groundfish Ecology Cruises

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This program involved a series of one day cruises on a commercial trawl and longline vessel. Cruises were conducted once per month from 2001-2005. The objectives of...

  16. Cruising to the Expo

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    Shanghai’s 2010 World Expo is a golden opportunity to bolster China’s cruise ship industry shanghai’s cruise ship port broke a number of records in 2009.The port saw 182,000 passenger visits via international cruise liners throughout the year,an increase of 73 percent over the year before.

  17. Cruising to the Expo

    Institute of Scientific and Technical Information of China (English)

    JING XIAOLEI

    2010-01-01

    @@ Shanghai's cruise ship port broke a number of records in 2009. The port saw 182,000 passenger visits via intemational cruise liners throughout the year, an increase of 73 percent over the year before. The year saw 33 visits of cruise ships that call Shanghai home and another 47 visits from ships with different home ports, breaking previous records.

  18. Letters: Subs, Not Missiles

    National Research Council Canada - National Science Library

    Tsipis, Kosta

    1989-01-01

      In a letter, MIT physicist Kosta Tsipis responds to a column in the August 1988 "Bulletin of the Atomic Scientists" and clarifies his position in regard to the MX and Trident II missile programs...

  19. A Potent Vector: Assessing Chinese Cruise Missile Developments

    Science.gov (United States)

    2014-01-01

    navigation/iner- tial guidance system, but may also use terrain contour mapping for redundant midcourse guidance and a digital scene- matching sensor to...International Affairs at the University of Pittsburgh. Dr. Andrew S. Erickson is an Associate Professor in the Strategic Research Department at...coordinating national efforts in ASCM research , design, and licensed production. Established in 1956 with U.S.-trained scientist Qian Xuesen as

  20. The Effectiveness of the U.S. Missile Defense Capabilities as a Deterrent to the North Korean Missile Threat

    Science.gov (United States)

    2007-12-01

    THE U.S. MISSILE DEFENSE CAPABILITIES AS A DETERRENT TO THE NORTH KOREAN MISSILE THREAT by Issac G. Gipson December 2007 Thesis Advisor...SUBJECT TERMS Missile Deterrence, Missile Defense , North Korean Missile Threat, North Korean Missile Systems, U.S. Missile Defense Capabilities, 16...19 III. CURRENT MISSILE DEFENSE ANALYSIS AGAINST NORTH KOREAN MISSILE THREAT

  1. Modeling Of Ballistic Missile Dynamics

    Directory of Open Access Journals (Sweden)

    Salih Mahmoud Attiya

    2013-05-01

    Full Text Available Aerodynamic modeling of ballistic missile in pitch plane is performed and the open-loop transfer function related to the jet deflector angle as input and pitch rate, normal acceleration as output has been derived with certain acceptable assumptions. For typical values of ballistic missile parameters such as mass, velocity, altitude, moment of inertia, thrust, moment and lift coefficient show that, the step time response and frequency response of the missile is unstable. The steady state gain, damping ratio and undraped natural frequency depend on the missile parameters. To stabilize the missile a lead compensator must be added to the forward loop.

  2. The North Korean Missile Program

    Science.gov (United States)

    Wright, David

    2001-04-01

    In recent years, the development of ballistic missiles by North Korea has been a key motivation for US efforts to stem missile proliferation and to develop defenses against intermediate and long-range missiles. In the 1980s, North Korea reverse-engineered short-range Soviet Scud missiles and began to produce and sell them. In 1993, it flight-tested a missile reported to have a range of up to 1,300 kilometers, which would allow it to target most of Japan. In 1998, it launched a multi-stage missile over Japan; it later announced that the launch had been an attempt to place a satellite in orbit. An important question is what these tests imply for its current capability and its possible future missile development. Since North Korea has sold missiles to countries in the Middle East and South Asia and is reported to be assisting Iran's missile development program, understanding its capabilities is relevant to security concerns in several parts of the world. In this talk I will discuss my analysis of the publicly available information about North Korea's missile tests, and my conclusions about possible future developments. This includes estimates of ranges and payloads of its next potential generation of missiles, and comments about their potential military utility.

  3. Missile defence : An overview

    NARCIS (Netherlands)

    Weimar, P.W.L.

    2012-01-01

    At the present day, an unparalleled number of international actors, be it national governments or non-state groups, have acquired or are seeking to acquire both weapons of mass destruction and the means to deliver them. Those means of delivery can be Ballistic Missiles that can bridge vast – even

  4. Missile defence : An overview

    NARCIS (Netherlands)

    Weimar, P.W.L.

    2012-01-01

    At the present day, an unparalleled number of international actors, be it national governments or non-state groups, have acquired or are seeking to acquire both weapons of mass destruction and the means to deliver them. Those means of delivery can be Ballistic Missiles that can bridge vast – even in

  5. Cruise tourism shore excursions

    DEFF Research Database (Denmark)

    João Lopes, Maria; Dredge, Dianne

    2017-01-01

    Very complex yet highly integrated business logics characterise cruise tourism with shore excursions frequently identified as a key source of value. This paper presents a case study of cruise tourism and shore excursion planning in Copenhagen, Denmark. The aim of this paper is to investigate...... the characteristics of cruise tourism, itinerary and shore excursion planning with a view to understanding the value generated from cruise tourism shore excursions. We argue that economic value is a blunt measure, and there are other types of value, positive and negative, that are also generated. This research...... reveals that a range of local conditions and structural characteristics create barriers and opportunities for generating different types of value. Using a case study of shore excursions in Copenhagen, the Baltic’s most important port, this paper explains the dynamics between cruise tourism and shore...

  6. Potential applications of video disc technology to missile guidance

    Science.gov (United States)

    Ormsby, C. C.; Long, H. S.

    1980-01-01

    An assessment of video disk data storage technology suggests the possibility of a missile-borne data storage system providing real-time access to a data base consisting of approximately 10 to the 11th bits, with readout rates of up to 200 Mbits/sec and average frame access time of 2-3 sec. The Direct Read After Write (DRAW) technology currently under development will also provide a data recording capability of 10 to the 7th - 10 to the 8th bits/sec. Five cruise missile applications of this technology are discussed: (1) Terrain Contour Matching (TERCOM) data base guidance; (2) target signature data base guidance; (3) terrain/obstacle files navigation; (4) preprogrammed route storage navigation; and (5) reconnaissance data recording.

  7. Ballistic Missile Defense System Transition and Transfer Process from Missile Defense Agency to the Army - Innovative or Dysfunctional?

    Science.gov (United States)

    2010-04-14

    initiating development of the nuclear-capable Nike Zeus ABM interceptor, intended to destroy an incoming enemy warhead with an airborne nuclear explosion. The...intercept an incoming warhead using the nuclear-tipped Nike Zeus missile. Although DoD cancelled the Nike Zeus system due to technical and operational...budgeting, and initiate issue resolution through the Army/MDA Board of Directors to ensure adequate representation of the Service’s interests

  8. The US Cruise Ship Industry.

    Science.gov (United States)

    Miller, Willis H.

    1985-01-01

    The cruise ship industry relates directly to many features of the natural and cultural environments. The U.S. cruise ship industry is analyzed. Discusses the size of the industry, precruise passenger liners, current cruise ships, cruise regions and routes, ports of call, major ports, passengers, and future prospects. (RM)

  9. Juvenile Rockfish Recruitment Cruise

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In 1983, the groundfish analysis project began a series of yearly cruises designed to assess the annual abundance of juvenile rockfish along the central California...

  10. European Missile Defense and Russia

    Science.gov (United States)

    2014-07-01

    most senior level—the only one that matters in Russian decisionmaking cul - ture—is also of significance today and will also be re- ferred to later in... org /missile-defense/us-ballistic-missile-defense/p30607. 9. Email exchange with author, July 2013. 10. “Safeguard,” Washington, DC: Federation of Ameri

  11. The Unauthorized Movement of Nuclear Weapons and Mistaken Shipment of Classified Missile Components: An Assessment

    Science.gov (United States)

    2012-01-01

    nonnuclear warhead cruise missiles in the storage structures even though visually recognizing the difference between nuclear and nonnuclear requires...ratification on that promise. Michelle Spencer, Aadina Ludin, and Heather Nelson 38 House? There is a response to that stimuli or lack of stimuli ...Encouraging teamwork  Responsibility. Former Chairman of the Joint Chiefs of Staff General Maxwell D. Taylor stated, ―One expects a military

  12. Robust Graded Sliding Mode Tracking Control for Low Speed Spinning Ballistic Missiles

    Institute of Scientific and Technical Information of China (English)

    ZHOU Jun; WANG Zhi; ZHOU Feng-qi

    2007-01-01

    The nonlinear dynamic model of spinning ballistic missiles is established during the first boosting phase of the missile. Based on the conventional backstepping sliding mode control and the assumption of a two time-scale separation of missile dynamics, a graded sliding mode controller is designed with two sub-sliding surfaces which have invariability to external disturbances and parameter perturbations, and a matrix which comprises three first order low pass filters is introduced to prevent "explosion of terms". Owing to the upper bounds of the uncertainties are difficult to obtain in advance,adaptive laws are introduced to estimate the values of the uncertainties in real-time. Eventually, the numerical simulation results given to show the proposed controller can ensure the steady flight of missiles.

  13. Explosives tester

    Science.gov (United States)

    Haas, Jeffrey S [San Ramon, CA; Howard, Douglas E [Livermore, CA; Eckels, Joel D [Livermore, CA; Nunes, Peter J [Danville, CA

    2011-01-11

    An explosives tester that can be used anywhere as a screening tool by non-technical personnel to determine whether a surface contains explosives. First and second explosives detecting reagent holders and dispensers are provided. A heater is provided for receiving the first and second explosives detecting reagent holders and dispensers.

  14. Travelers' Health: Cruise Ship Travel

    Science.gov (United States)

    ... Water Disinfection Infographics for Travelers MERS Health Advisory poster Food and Water: What's Safer Health Advisory: MERS ... cruise ships can vary widely depending on ship size, itinerary, length of cruise, and passenger demographics. Generally, ...

  15. Assessment of Containment Structures Against Missile Impact Threats

    Institute of Scientific and Technical Information of China (English)

    LI Q M

    2006-01-01

    In order to ensure the highest safety requirements,nuclear power plant structures (the containment structures,the fuel storages and transportation systems) should be assessed against all possible internal and external impact threats.The internal impact threats include kinetic missiles generated by the failure of high pressure vessels and pipes,the failure of high speed rotating machineries and accidental drops.The external impact threats may come from airborne missiles,aircraft impact,explosion blast and fragments.The impact effects of these threats on concrete and steel structures in a nuclear power plant are discussed.Methods and procedures for the impact assessment of nuclear power plants are introduced.Recent studies on penetration and perforation mechanics as well as progresses on dynamic properties of concrete-like materials are presented to increase the understanding of the impact effects on concrete containment structures.

  16. Cooperative adaptive cruise control

    NARCIS (Netherlands)

    Naus, G.J.L.; Molengraft, R. van de; Ploeg, J.

    2009-01-01

    Adaptive Cruise Control (ACC) enables automatic following of a preceding vehicle, based on measurements of the inter-vehicle distance xr,i and the relative velocity ˙ xr,i. Commonly, a radar is used for these measurements, see Figure 1. Decreasing the inter-vehicle distance to a small value of only

  17. Effect of emerging technology on a convertible, business/interceptor, supersonic-cruise jet

    Science.gov (United States)

    Beissner, F. L., Jr.; Lovell, W. A.; Robins, A. W.; Swanson, E. E.

    1986-01-01

    This study was initiated to assess the feasibility of an eight-passenger, supersonic-cruise long range business jet aircraft that could be converted into a military missile carrying interceptor. The baseline passenger version has a flight crew of two with cabin space for four rows of two passenger seats plus baggage and lavatory room in the aft cabin. The ramp weight is 61,600 pounds with an internal fuel capacity of 30,904 pounds. Utilizing an improved version of a current technology low-bypass ratio turbofan engine, range is 3,622 nautical miles at Mach 2.0 cruise and standard day operating conditions. Balanced field takeoff distance is 6,600 feet and landing distance is 5,170 feet at 44,737 pounds. The passenger section from aft of the flight crew station to the aft pressure bulkhead in the cabin was modified for the interceptor version. Bomb bay type doors were added and volume is sufficient for four advanced air-to-air missiles mounted on a rotary launcher. Missile volume was based on a Phoenix type missile with a weight of 910 pounds per missile for a total payload weight of 3,640 pounds. Structural and equipment weights were adjusted and result in a ramp weight of 63,246 pounds with a fuel load of 30,938 pounds. Based on a typical intercept mission flight profile, the resulting radius is 1,609 nautical miles at a cruise Mach number of 2.0.

  18. Ballistic Missile Defense System (BMDS)

    Science.gov (United States)

    2015-12-01

    Estimate RDT&E - Research , Development, Test, and Evaluation SAR - Selected Acquisition Report SCP - Service Cost Position TBD - To Be Determined TY - Then...all ranges and in all phases of flight. Following guidance from the President, the Secretary of Defense approved the Ballistic Missile Defense (BMD...based Midcourse Defense (GMD) system to enhance our capability against Intercontinental Ballistic Missiles. We are currently sustaining 30

  19. Underground Explosions

    Science.gov (United States)

    2015-09-09

    underground explosions has led to significant progress in the development of geomechanics a science studying mechanical properties of rocks and rock...mining industry. One way to improve methods of fragmentation by explosives involves utilizing the geomechanical properties of the rock massif, in...Geomekhanika krupnomasshtabnykh vzryvov ( Geomechanics of large explosions), Nedra, Moscow, 319 pp. [This book in available in electronic format

  20. Joint Air-to-Ground Missile (JAGM)

    Science.gov (United States)

    2015-12-01

    Navy. The JAGM mission is to develop the next generation of aviation launched fire and forget missiles to replace the HELLFIRE laser and Longbow...EMD contract to develop the next generation of aviation launched missiles to replace the HELLFIRE laser and Longbow radar missiles . JAGM December 2015...Selected Acquisition Report (SAR) RCS: DD-A&T(Q&A)823-355 Joint Air-to-Ground Missile (JAGM) As of FY 2017 President’s Budget Defense Acquisition

  1. Bayesian Missile System Reliability from Point Estimates

    Science.gov (United States)

    2014-10-28

    OCT 2014 2. REPORT TYPE N/A 3. DATES COVERED - 4. TITLE AND SUBTITLE Bayesian Missile System Reliability from Point Estimates 5a. CONTRACT...Principle (MEP) to convert point estimates to probability distributions to be used as priors for Bayesian reliability analysis of missile data, and...illustrate this approach by applying the priors to a Bayesian reliability model of a missile system. 15. SUBJECT TERMS priors, Bayesian , missile

  2. Impulsive control for hypervelocity missiles

    Science.gov (United States)

    Magness, R. W.

    1981-05-01

    A hypervelocity agile interceptor/quickshot is being developed for defense of ballistic missile launch sites. A guidance and control system is required to achieve the missile guidance accuracy necessary for direct target impact. Attitude control systems evaluated for the agile interceptor included aerodynamic controls, thrust vector controls and impulsive motor controls. The solid squib impulsive control motion was selected because of high response rate, low weight and low volume. A baseline motor configuration was designed and a solid propellant squib was developed for use in the control system. Ballistic pendulum and bench tests were conducted with a test impulsive control motor to measure nominal performance, establish the standard deviation of performance, and define requirements to prevent sympathetic ignition. A dynamic control wind tunnel test was also conducted to determine the impulse augmentation due to the impulsive motor jet interaction with the missile boundary layer. The degree and direction of augmentation was measured for variations in Mach number and angle of attack.

  3. Remote control missile model test

    Science.gov (United States)

    Allen, Jerry M.; Shaw, David S.; Sawyer, Wallace C.

    1989-01-01

    An extremely large, systematic, axisymmetric body/tail fin data base was gathered through tests of an innovative missile model design which is described herein. These data were originally obtained for incorporation into a missile aerodynamics code based on engineering methods (Program MISSILE3), but can also be used as diagnostic test cases for developing computational methods because of the individual-fin data included in the data base. Detailed analysis of four sample cases from these data are presented to illustrate interesting individual-fin force and moment trends. These samples quantitatively show how bow shock, fin orientation, fin deflection, and body vortices can produce strong, unusual, and computationally challenging effects on individual fin loads. Comparisons between these data and calculations from the SWINT Euler code are also presented.

  4. The Apache Longbow-Hellfire Missile Test at Yuma Proving Ground: Ecological Risk Assessment for Missile Firing

    Energy Technology Data Exchange (ETDEWEB)

    Jones, Daniel Steven [ORNL; Efroymson, Rebecca Ann [ORNL; Hargrove, William Walter [ORNL; Suter, Glenn [U.S. Environmental Protection Agency; Pater, Larry [ERDC-CERL

    2008-01-01

    A multiple stressor risk assessment was conducted at Yuma Proving Ground, Arizona, as a demonstration of the Military Ecological Risk Assessment Framework. The focus was a testing program at Cibola Range, which involved an Apache Longbow helicopter firing Hellfire missiles at moving targets, M60- A1 tanks. This paper describes the ecological risk assessment for the missile launch and detonation. The primary stressor associated with this activity was sound. Other minor stressors included the detonation impact, shrapnel, and fire. Exposure to desert mule deer (Odocoileus hemionus crooki) was quantified using the Army sound contour program BNOISE2, as well as distances from the explosion to deer. Few effects data were available from related studies. Exposure-response models for the characterization of effects consisted of human "disturbance" and hearing damage thresholds in units of C-weighted decibels (sound exposure level) and a distance-based No Observed Adverse Effects Level for moose and cannonfire. The risk characterization used a weight-of-evidence approach and concluded that risk to mule deer behavior from the missile firing was likely for a negligible number of deer, but that no risk to mule deer abundance and reproduction is expected.

  5. Embedded Systems - Missile Detection/Interception

    Directory of Open Access Journals (Sweden)

    Luis Cintron

    2010-01-01

    Full Text Available Missile defense systems are often related to major military resources aimed at shielding a specific region from incoming attacks. They are intended to detect, track, intercept, and destruct incoming enemy missiles. These systems vary in cost, efficiency, dependability, and technology. In present times, the possession of these types of systems is associated with large capacity military countries. Demonstrated here are the mathematical techniques behind missile systems which calculate trajectories of incoming missiles and potential intercept positions after initial missile detection. This procedure involved the use of vector-valued functions, systems of equations, and knowledge of projectile motion concepts.

  6. Liquid explosives

    CERN Document Server

    Liu, Jiping

    2015-01-01

    The book drawing on the author's nearly half a century of energetic materials research experience intends to systematically review the global researches on liquid explosives. The book focuses on the study of the conception, explosion mechanism, properties and preparation of liquid explosives. It provides a combination of theoretical knowledge and practical examples in a reader-friendly style. The book is likely to be interest of university researchers and graduate students in the fields of energetic materials, blasting engineering and mining.

  7. Trajectory Optimization Design for Morphing Wing Missile

    Institute of Scientific and Technical Information of China (English)

    Ruisheng Sun; Chao Ming; Chuanjie Sun

    2015-01-01

    This paper presents a new particle swarm optimization ( PSO) algorithm to optimize the trajectory of morphing⁃wing missile so as to achieve the enlargement of the maximum range. Equations of motion for the two⁃dimensional dynamics are derived by treating the missile as an ideal controllable mass point. An investigation of aerodynamic characteristics of morphing⁃wing missile with varying geometries is performed. After deducing the optimizing trajectory model for maximizing range, a type of discrete method is put forward for taking optimization control problem into nonlinear dynamic programming problem. The optimal trajectory is solved by using PSO algorithm and penalty function method. The simulation results suggest that morphing⁃wing missile has the larger range than the fixed⁃shape missile when launched at supersonic speed, while morphing⁃wing missile has no obvious range increment than the fixed⁃shape missile at subsonic speed.

  8. Norovirus transmission on cruise ship.

    Science.gov (United States)

    Isakbaeva, Elmira T; Widdowson, Marc-Alain; Beard, R Suzanne; Bulens, Sandra N; Mullins, James; Monroe, Stephan S; Bresee, Joseph; Sassano, Patricia; Cramer, Elaine H; Glass, Roger I

    2005-01-01

    An outbreak of norovirus gastroenteritis affected passengers on two consecutive cruises of ship X and continued on 4 subsequent cruises despite a 1-week sanitization. We documented transmission by food and person-to-person contact; persistence of virus despite sanitization onboard, including introductions of new strains; and seeding of an outbreak on land.

  9. Robust missile feedback control strategies

    NARCIS (Netherlands)

    Trottemant, E.J.; Scherer, C.W.; Weiss, M.; Vermeulen, A.

    2010-01-01

    The nature of the missile interception problem with two noncooperative players leads to the field of differential games. Introducing nonlinear uncertain models can potentially lead to nonexistence of game theoretic equilibrium strategies, computationally intractable problems, and/or highly reduced p

  10. Acceleration effects on missile aerodynamics

    CSIR Research Space (South Africa)

    Gledhill, Irvy MA

    2010-09-01

    Full Text Available Practical requirements are now arising in which significant acceleration takes place during flight; 5th generation missiles, such as A-Darter, execute turns at 100 g, where g is the acceleration due to gravity, and thrust from propulsion systems may...

  11. Oceanographic Mower Cruise

    Science.gov (United States)

    Valencia, J.; Ercilla, G.; Hernández-Molina, F. J.; Casas, D.

    2015-04-01

    The MOWER Cruise has executed a geophysics and geologic expedition in the Gulf of Cádiz (sector adjacent to the Strait of Gibraltar) and west off Portugal, in the framework of the coordinate research project MOWER "Erosive features and associated sandy deposits generated by the Mediterranean Outflow Water (MOW) around Iberia: paleoceanographic, sedimentary & economic implications" (CTM 2012-39599-C03). The main aim of this project is to identify and study the erosional features (terraces and channels) and associated sedimentary deposits (sandy contourites) generated by the Mediterranean Water Masses around the middle continental slope of Iberia (The Mediterranean Outflow Water - MOW - in the Atlantic margins), their Pliocene and Quaternary evolution and their paleoceanographic, sedimentary and economic implications. This objective directly involves the study of alongslope (contourite) processes associated with the MOW and across-slope (turbiditic flows, debris flows, etc.) processes in the sedimentary stacking pattern and evolution of the Iberian margins. The MOWER project and cruise are related to the Integrated Ocean Drilling Program (IODP) Expedition 339 (Mediterranean Outflow). It is also linked and coordinated with CONDRIBER Project "Contourite drifts and associated mass-transport deposits along the SW Iberia margin - implications to slope stability and tsunami hazard assessment" (2013-2015) funded by the Fundação para a Ciência e Tecnologia, Portugal (PTDC/GEO-GEO/4430/2012).

  12. An outbreak of viral gastroenteritis on a cruise ship.

    Science.gov (United States)

    McEvoy, M; Blake, W; Brown, D; Green, J; Cartwright, R

    1996-12-06

    Three hundred and seventy-eight passengers reported gastroenteritis during four cruises in the western Mediterranean on consecutive weeks of 1995. The rate at which cases were reported each day increased on the fourth cruise. The ship's owner commissioned an epidemiological investigation from the PHLS Communicable Disease Surveillance Centre. Cases reported explosive vomiting and diarrhoea, which lasted from 24 hours to five days, and were suggestive of viral gastroenteritis. No food handlers reported illness, but enquiries suggested that some had been ill and treated themselves. No bacterial pathogens were isolated from faecal specimens provided by cases or from water, food, and environmental samples taken from the galley. Small round structured viruses (SRSV) were identified by reverse transcriptase polymerase chain reaction in two faecal specimens and one specimen of vomit from people who became ill during the fourth cruise. SRSV was also identified in one faecal specimen by electron microscopy. Environmental inspection revealed inappropriate food handling, hygiene, and storage. During one 24 hour period no chlorine was detectable in the water. A case control study conducted on the fourth cruise sought details of exposure to various foodstuffs, unbottled water, and various parts of the ship. No significant associations were found between illness and any exposures. The evidence strongly suggested a continuing outbreak of SRSV infection transmitted from person to person. Some passengers remained on board for a second week and could have transmitted their infection to new arrivals. The ship was cleared and disinfected at the end of the fourth cruise in order to interrupt transmission. Fewer than 10 cases presented in each of the fifth and sixth cruises.

  13. CMO: Cruise Metadata Organizer for JAMSTEC Research Cruises

    Science.gov (United States)

    Fukuda, K.; Saito, H.; Hanafusa, Y.; Vanroosebeke, A.; Kitayama, T.

    2011-12-01

    JAMSTEC's Data Research Center for Marine-Earth Sciences manages and distributes a wide variety of observational data and samples obtained from JAMSTEC research vessels and deep sea submersibles. Generally, metadata are essential to identify data and samples were obtained. In JAMSTEC, cruise metadata include cruise information such as cruise ID, name of vessel, research theme, and diving information such as dive number, name of submersible and position of diving point. They are submitted by chief scientists of research cruises in the Microsoft Excel° spreadsheet format, and registered into a data management database to confirm receipt of observational data files, cruise summaries, and cruise reports. The cruise metadata are also published via "JAMSTEC Data Site for Research Cruises" within two months after end of cruise. Furthermore, these metadata are distributed with observational data, images and samples via several data and sample distribution websites after a publication moratorium period. However, there are two operational issues in the metadata publishing process. One is that duplication efforts and asynchronous metadata across multiple distribution websites due to manual metadata entry into individual websites by administrators. The other is that differential data types or representation of metadata in each website. To solve those problems, we have developed a cruise metadata organizer (CMO) which allows cruise metadata to be connected from the data management database to several distribution websites. CMO is comprised of three components: an Extensible Markup Language (XML) database, an Enterprise Application Integration (EAI) software, and a web-based interface. The XML database is used because of its flexibility for any change of metadata. Daily differential uptake of metadata from the data management database to the XML database is automatically processed via the EAI software. Some metadata are entered into the XML database using the web

  14. Drague et cruising

    Directory of Open Access Journals (Sweden)

    Emmanuel Redoutey

    2008-04-01

    Full Text Available Dans la culture homosexuelle masculine, drague et cruising sont des termes équivalents. Ils désignent la quête d’un ou de plusieurs partenaires occasionnels et anonymes. Analyser leurs référents métaphoriques respectifs offre un éclairage particulier, à la fois phénoménologique et géographique, pour une compréhension nuancée des types de pratique et d’expérience qu’ils recouvrent. Cet article pose l’hypothèse d’une distinction entre deux figures, le dragueur et le cruiser, et postule que cette distinction se tient essentiellement dans l’opposition que Gilles Deleuze et Félix Guattari établissent entre ‘espace strié’ et ‘espace lisse’. L’essai de théorisation qui en découle est une manière de comprendre ce qui, entre sexualisation de l’espace et érotisation d’un mouvement exploratoire, fait fonctionner le script de la drague.In French gay culture, drague means cruising: looking for anonymous and 
casual sexual partners. This paper, by respectively examining the 
metaphorical underpinnings of both words, French and English, throws 
doubt on the validity of this translation. Through a phenomenological 
and geographical perspective, it attempts to give a nuanced examination 
of the practice and experience that each word conceals. The aim is to 
identify two figures embodied in a same person: the dragueur and the 
cruiser. I will argue that the distinction mainly rests on the 
opposition that Gilles Deleuze and Felix Guattari establish between ‘striated space’ and ‘smooth space’. The concluding theorical 
discussion is an attempt to understand what, in the tension between sexualization of space and eroticization of movement, guides the scripts of drague and cruising.

  15. Use of noise attenuation modeling in managing missile motor detonation activities.

    Science.gov (United States)

    McFarland, Michael J; Watkins, Jeffrey W; Kordich, Micheal M; Pollet, Dean A; Palmer, Glenn R

    2004-03-01

    The Sound Intensity Prediction System (SIPS) and Blast Operation Overpressure Model (BOOM) are semiempirical sound models that are employed by the Utah Test and Training Range (UTTR) to predict whether noise levels from the detonation of large missile motors will exceed regulatory thresholds. Field validation of SIPS confirmed that the model was effective in limiting the number of detonations of large missile motors that could potentially result in a regulatory noise exceedance. Although the SIPS accurately predicted the impact of weather on detonation noise propagation, regulators have required that the more conservative BOOM model be employed in conjunction with SIPS in evaluating peak noise levels in populated areas. By simultaneously considering the output of both models, in 2001, UTTR detonated 104 missile motors having net explosive weights (NEW) that ranged between 14,960 and 38,938 lb without a recorded public noise complaint. Based on the encouraging results, the U.S. Department of Defense is considering expanding the application of these noise models to support the detonation of missile motors having a NEW of 81,000 lb. Recent modeling results suggest that, under appropriate weather conditions, missile motors containing up to 96,000 lb NEW can be detonated at the UTTR without exceeding the regulatory noise limit of 134 decibels (dB).

  16. Developmental Continuity? Crawling, Cruising, and Walking

    Science.gov (United States)

    Adolph, Karen E.; Berger, Sarah E.; Leo, Andrew J.

    2011-01-01

    This research examined developmental continuity between "cruising" (moving sideways holding onto furniture for support) and walking. Because cruising and walking involve locomotion in an upright posture, researchers have assumed that cruising is functionally related to walking. Study 1 showed that most infants crawl and cruise concurrently prior…

  17. Cruise Report RV Poseidon Cruise No. P 475 [POS475

    OpenAIRE

    Leipe, Thomas

    2014-01-01

    Dates of the cruise: from 27. 9. to 12. 10. 2014. - Purpose of the cruise: Investigation of transport, deposition and exchange of matter at the sediment-water boundary in German waters (Project SECOS). Reconstruction of Holocene history of the western Baltic Sea (Gdansk-Basin and Bornholm Basin). Acoustic mapping of the sea floor at selected areas in German waters. Documentation and sampling of “stone reef habitats” by research scuba divers (German waters only).

  18. Missile vascular injuries: 19-year experience.

    Science.gov (United States)

    Ahanger, Abdul Gani; Wani, Mohd Lateef; Lone, Reyaz Ahmad; Singh, Shyam; Hussain, Zahur; Mir, Ishtiyak A; Irshad, Ifat; Ashraf, Hakeem Zubair; Dar, Abdul Majeed; Lone, Ghulam Nabi; Bhat, Mohammad Akbar; Sharma, Mukand Lal

    2010-03-01

    Missile vascular injuries have reached an epidemic proportion in Kashmir valley since the eruption of militancy. The present study was undertaken to analyze the mode, pattern, presentation, and management of missile vascular injuries. A retrospective study of patients with missile vascular injury from January 1990 to October 2008 was undertaken. Five hundred eighty patients with missile vascular injury were studied. All patients with vascular injury due to causes other than missiles were excluded from the study. Most of the patients were treated by interpositional saphenous vein graft or end-to-end anastomosis. The most common complication was wound infection (22.7%) followed by graft occlusion (3.8%). The amputation rate was 3.3% and was higher in patients with a delay of >6 hours to revascularization and associated fractures. Missile vascular injury requires prompt resuscitation and revascularization. Preoperative angiography is seldom necessary. Doppler study may sometimes be needed to aid in the diagnosis.

  19. Electro-chemical batteries for guided missiles

    Directory of Open Access Journals (Sweden)

    H. S. Jaggi

    1966-05-01

    Full Text Available Electro-chemical batteries owing to their simplicity and ease of stowage form one of the sources of electrical power inside a missile. However, all batteries are not suited for this application. This article describes the special features required of a missile borne battery pack and discusses the characteristics of various types of batteries available today in the world. Conclusions have been drawn as to the most suitable types of batteries for missile applications.

  20. Soviet debate on missile defense

    Energy Technology Data Exchange (ETDEWEB)

    Parrott, B.

    1987-04-01

    Although the Strategic Defense Initiative (SDI) is meant to cope with the danger of a Soviet nuclear attack, the recent US debate over SDI has paid surprisingly little attention to Soviet views of ballistic missile defense. Despite the existence of a substantial body of pertinent scholarship, the debate has failed to take adequate account of major changes in Soviet ballistic missile defense policy since the mid-1960s. It has also neglected the links between current Soviet military policy and broader Soviet political and economic choices. The Soviets regard SDI not as a novel undertaking to reduce the risks of nuclear war but as an extension of the geopolitical competition between the superpowers. This competition has been dominated in the 1980s, in the Soviet view, by sharply increased US assertiveness and the decline of detente. Viewing SDI as a manifestation of these general trends, Soviet decision makers find the prospect of an unregulated race in ballistic missile defenses and military space technologies deeply unsettling. The deterioration of superpower relations has raised serious doubts in Moscow about the wisdom of Soviet external policy during the 1970s and has provoked sharp internal differences over policy toward the US. Already highly suspicious of the Reagan administration, the elite is united by a general conviction that SDI is an American gambit that may ultimately undercut past Soviet strategic gains and pose a grave new threat to Soviet security. 14 references.

  1. Post-Cruise Questionnaire - Legacy

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Post-Cruise Questionnaire is a mandatory post trip legal document that observers fill out after every trip they have completed.

  2. Post-Cruise Questionnaire - Legacy

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Post-Cruise Questionnaire is a mandatory post trip legal document that observers fill out after every trip they have completed.

  3. Missile Electro-Optical Countermeasures Simulation Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — This laboratory comprises several hardware-in-the-loop missile flight simulations designed specifically to evaluate the effectiveness of electro-optical air defense...

  4. Infrared Background and Missiles Signature Survey

    Directory of Open Access Journals (Sweden)

    D.V. Renuka

    2013-11-01

    Full Text Available The proliferation of the missile threats in the existing threat scenario for airborne platform is a serious point of consideration for any mission planning. Missile warning system is an electronic warfare support system which gives warning to the pilot when a missile is detected in the scenario. The airborne platform has to be installed with missile warning sensors to give a spherical coverage, so that the sensors can detect the IR intensity variation in the ground scenario. This IR intensity variation has to be further analysed to differentiate the raising missile intensity from the varying background clutter. In order to differentiate the threat from the background clutter, the system should have sufficient background data set for online comparison thereby having less false alarm rate. The efficiency and performance of any missile warning system is validated with respect to its probability of declaration against the false alarm rate. Hence, to realize an efficient functioning of missile warning system, building IR background data base and missile signature database are the primary task. This paper details the methodology to be adapted for the building of tactical missile IR signatures and background data.

  5. Infrared Background and Missiles Signature Survey

    Directory of Open Access Journals (Sweden)

    D.V. Renuka

    2013-12-01

    Full Text Available The proliferation of the missile threats in the existing threat scenario for airborne platform is a serious point of consideration for any mission planning. Missile warning system is an electronic warfare support system which gives warning to the pilot when a missile is detected in the scenario. The airborne platform has to be installed with missile warning sensors to give a spherical coverage, so that the sensors can detect the IR intensity variation in the ground scenario. This IR intensity variation has to be further analysed to differentiate the raising missile intensity from the varying background clutter. In order to differentiate the threat from the background clutter, the system should have sufficient background data set for online comparison thereby having less false alarm rate. The efficiency and performance of any missile warning system is validated with respect to its probability of declaration against the false alarm rate. Hence, to realize an efficient functioning of missile warning system, building IR background data base and missile signature database are the primary task. This paper details the methodology to be adapted for the building of tactical missile IR signatures and background data.Defence Science Journal, 2013, 63(6, pp.611-615, DOI:http://dx.doi.org/10.14429/dsj.63.5762

  6. An Investigation into the Application of Dynamic Programming to Determine Optimal Controls for Tracking a Cruise Missile Maneuver by CMMCA (cruise Missile Mission Control Aircraft)

    Science.gov (United States)

    1989-03-01

    requirement for an improved guidance algorithm (10:10). His simulacions lemonstrated that simply responding to deviations in arimuth and range appears to be...EDGCHG(HDG,VEL,C) *• NXTVEL - VELPOS + VELCHG(C) C C If the next state is within limits, continue C IF ( NX "X.GE.XMIN.AND.NXTX.LE.XMAX.AND

  7. Infrared ship/decoy/missile encounter model

    Science.gov (United States)

    Morin, Josee; Reid, Francoise; Morin, Andre

    1993-08-01

    Simulations of missile-ship-countermeasures engagements are used to determine the effective ways of defending a ship against infrared-guided missile threats. This paper describes one type of simulation that models the engagement of a ship deploying IR decoys by an infrared-guided seeker-head missile. This model was developed to assess the efficiency of IR decoys in protecting ships against these missiles. The simulation, Missile Infrared Decoy And Ship (MIDAS), is composed of three major blocks, the infrared scene generation, the seeker simulation and the missile dynamics simulation. The infrared scene generation block produces a three-dimensional IR scene from the target ship and flare models and transforms it into the two-dimensional IR image viewed by the seeker. The seeker simulation block is based on a generic conical scan seeker which uses a crossed-detector array for target detection. It processes the IR image to select a target and generates a steering command. The missile dynamics block computes the changes in missile trajectory according to the seeker steering command. The computations performed by each of the three blocks are explained in detail.

  8. The Cooperative Ballistic Missile Defence Game

    NARCIS (Netherlands)

    Evers, L.; Barros, A.I.; Monsuur, H.

    2013-01-01

    The increasing proliferation of ballistic missiles and weapons of mass destruction poses new risks worldwide. For a threatened nation and given the characteristics of this threat a layered ballistic missile defence system strategy appears to be the preferred solution. However, such a strategy involv

  9. Principles of Guided Missiles and Nuclear Weapons.

    Science.gov (United States)

    Naval Personnel Program Support Activity, Washington, DC.

    Fundamentals of missile and nuclear weapons systems are presented in this book which is primarily prepared as the second text of a three-volume series for students of the Navy Reserve Officers' Training Corps and the Officer Candidate School. Following an introduction to guided missiles and nuclear physics, basic principles and theories are…

  10. The Cooperative Ballistic Missile Defence Game

    NARCIS (Netherlands)

    Evers, L.; Barros, A.I.; Monsuur, H.

    2013-01-01

    The increasing proliferation of ballistic missiles and weapons of mass destruction poses new risks worldwide. For a threatened nation and given the characteristics of this threat a layered ballistic missile defence system strategy appears to be the preferred solution. However, such a strategy

  11. Discrete Deterministic Modelling of Autonomous Missiles Salvos

    Directory of Open Access Journals (Sweden)

    Momcilo Milinovic

    2014-09-01

    Full Text Available The paper deals with mathematical models of sequent salvos battle, of autonomous flight missiles (AFM organized in the groups of combatants. Tactical integration of AFM system distance-controlled weapon is considered by performances of simultaneous approaches on targets, and continual battle models of guerilla and direct fire, are redesigned to the discrete-continual mixed model, for checking missiles sudden, and further salvos, attack effects. Superiority parameters, as well as losses and strengths of full, or the part of salvo battle, for the missiles groups as technology sub-systems combatants’, is expressed by mathematical and simulation examples. Targets engagements capacities of the missiles battle unit, is conducted through designed scenarios and mathematically derived in the research. Model orientated on answers about employment of rapid reaction defending tactics, by distance missiles attacks.Defence Science Journal, Vol. 64, No. 5, September 2014, pp.471-476, DOI:http://dx.doi.org/10.14429/dsj.64.5791

  12. Niche explosion.

    Science.gov (United States)

    Normark, Benjamin B; Johnson, Norman A

    2011-05-01

    The following syndrome of features occurs in several groups of phytophagous insects: (1) wingless females, (2) dispersal by larvae, (3) woody hosts, (4) extreme polyphagy, (5) high abundance, resulting in status as economic pests, (6) invasiveness, and (7) obligate parthenogenesis in some populations. If extreme polyphagy is defined as feeding on 20 or more families of hostplants, this syndrome is found convergently in several species of bagworm moths, tussock moths, root weevils, and 5 families of scale insects. We hypothesize that extreme polyphagy in these taxa results from "niche explosion", a positive feedback loop connecting large population size to broad host range. The niche explosion has a demographic component (sometimes called the "amplification effect" in studies of pathogens) as well as a population-genetic component, due mainly to the increased effectiveness of natural selection in larger populations. The frequent origins of parthenogenesis in extreme polyphages are, in our interpretation, a consequence of this increased effectiveness of natural selection and consequent reduced importance of sexuality. The niche explosion hypothesis makes detailed predictions about the comparative genomics and population genetics of extreme polyphages and related specialists. It has a number of potentially important implications, including an explanation for the lack of observed trade-offs between generalists and specialists, a re-interpretation of the ecological correlates of parthenogenesis, and a general expectation that Malthusian population explosions may be amplified by Darwinian effects.

  13. Explosive Start

    Institute of Scientific and Technical Information of China (English)

    FRANCISCO; LITTLE

    2006-01-01

    I ducked involuntarily as the first set of explosions went off and made my way in double time to the street corner, where I had spotted an arcade that could be used for shelter. Running quickly in a crouched, military maneuver while inhaling gunpowder fumes, I was totally oblivious to the laughter and head-shaking coming

  14. DDG-1000 Missile Integration: A Case Study

    Science.gov (United States)

    2014-03-01

    Effectiveness (Pk) ‐ Platform  Environment ‐ Interface Definition Requirements Flow Interface  Definition Legend Figure 28. DDG-1000 Requirements Flow (from...development specifications and gaps that still exist in requirements. 71 Legacy Missile Requirements Legend DDG1000 Missile...Office Consolidates Programs, Cuts Costs.” Sea Power, Navy League of the United States, Arlington VA. February 2004. Accessed July 2013. http

  15. Attacking the Theater Mobile Ballistic Missile Threat

    Science.gov (United States)

    1993-06-01

    and Record, �Theater Ballistic Missile Defense and US Contingency Operations,� 13. 43Greg Myre, Associated Press, �De Klerk Reveals South African...possession). ____. Briefing, subject: �WarBreaker.� 17 December 1992. Myre, Greg. Associated Press. �De Klerk Reveals South African Nuclear...April�3 May 1992, 1,44. Ordway, Frederick I. III and Ronald C. Wakeford. International Missile and Spacecraft Guide. New York: McGraw

  16. Ballistic Missile Defense. Past and Future

    Science.gov (United States)

    2010-04-01

    and deployed. These are the two big questions of the anti-ballistic missile ( ABM ) debate. It must be emphasized that the...is the extreme polarization of the opposing positions that have been taken. Consider this statement: “The whole ABM question touched off so intense...earlier that same year by the Washington Post and ABC News11 reported that 80 percent of the American population was in favor of building a missile

  17. Quality and Reliability of Missile System

    Directory of Open Access Journals (Sweden)

    Mr. Prahlada

    2002-01-01

    Full Text Available Missile system is a single-shot weapon system which requires very high quality and reliability. Therefore, quality and reliability have to be built into the system from designing to testing and evaluation. In this paper, the technological challenges encountered during development of operational missile system and the factors considered to build quality and reliability through the design, manufacture, assembly, testing and by sharing the knowledge with other aerospace agencies, industries and institutions, etc. have been presented.

  18. Acquisition of the Army Tactical Missile System Anti-Personnel/Anti-Materiel Block IA Program

    National Research Council Canada - National Science Library

    1998-01-01

    The Army Tactical Missile System Anti-PersonnellAnti-Materiel Block IA missile (Block IA) is a ground-launched missile system consisting of a surface-to-surface guided missile with an anti-personnel/anti-materiel warhead...

  19. Explosive Pleuritis

    Directory of Open Access Journals (Sweden)

    Jasdeep K Sharma

    2001-01-01

    Full Text Available The objective of the present paper is to describe the clinical and computed tomography features of 'explosive pleuritis', an entity first named by Braman and Donat in 1986, and to propose a case definition. A case report of a previously healthy, 45-year-old man admitted to hospital with acute onset pleuritic chest pain is presented. The patient arrived at the emergency room at 15:00 in mild respiratory distress; the initial chest x-ray revealed a small right lower lobe effusion. The subsequent clinical course in hospital was dramatic. Within 18 h of admission, he developed severe respiratory distress with oxygen desaturation to 83% on room air and dullness of the right lung field. A repeat chest x-ray, taken the morning after admission, revealed complete opacification of the right hemithorax. A computed tomography scan of the thorax demonstrated a massive pleural effusion with compression of pulmonary tissue and mediastinal shift. Pleural fluid biochemical analysis revealed the following concentrations: glucose 3.5 mmol/L, lactate dehydrogenase 1550 U/L, protein 56.98 g/L, amylase 68 U/L and white blood cell count 600 cells/mL. The pleural fluid cultures demonstrated light growth of coagulase-negative staphylococcus and viridans streptococcus, and very light growth of Candida albicans. Cytology was negative for malignant cells. Thoracotomy was performed, which demonstrated a loculated parapneumonic effusion that required decortication. The patient responded favourably to the empirical administration of intravenous levofloxacin and ceftriaxone, and conservative surgical methods in the management of the empyema. This report also discusses the patient's rapidly progressing pleural effusion and offers a potential case definition for explosive pleuritis. Explosive pleuritis is a medical emergency defined by the rapid development of a pleural effusion involving more than 90% of the hemithorax over 24 h, which causes compression of pulmonary tissue and

  20. Explosive Pleuritis

    Directory of Open Access Journals (Sweden)

    Satish Kumar

    2012-01-01

    Full Text Available Pleural effusions associated with pneumonia (parapneumonic effusions are one of the most common causes of exudative pleural effusions in the world. Approximately 20 to 40% of patients hospitalized with pneumonia will have an accompanying pleural effusion. The term 'Explosive pleuritis' was originally described by Braman and Donat in 1986 as pleural effusions developing within hours of admission. We report a 38 years old male patient with minimal pleural effusion which progressed rapidly within one day to involve almost whole of the hemithorax. There were multiple loculations on ultrasonography of thorax. Pleural fluid was sero-sanguinous and revealed gram positive diplococcic. The patient improved with antibiotics and pigtail catheter drainage.

  1. Variable centroid control scheme over hypersonic tactical missile

    Institute of Scientific and Technical Information of China (English)

    Yl; Yan(易彦); ZHOU; Fengqi(周凤岐)

    2003-01-01

    This paper presents a brand-new tactical missile control scheme--variable centroid vector control according to the international highlight in the field of missile control and the research status of hypersonic missile control in China. Four critical problems related with the new control method are included: improving phase control in the spinning missile single-channel control; establishing variable centroid controlled spinning missile attitude dynamics equations; analyzing variable centroid control strategies and analyzing the stability of the controlled missile and implementing robust control. The achievements and results obtained are valuable and helpful to the theoretical explorations and engineering applications.

  2. Variable centroid control scheme over hypersonic tactical missile

    Science.gov (United States)

    Yi, Yan; Zhou, Fengqi

    2003-12-01

    This paper presents a brand-new tactical missile control scheme—variable centroid vector control according to the international highlight in the field of missile control and the research status of hypersonic missile control in China. Four critical problems related with the new control method are included: improving phase control in the spinning missile single-channel control; establishing variable centroid controlled spinning missile attitude dynamics equations; analyzing variable centroid control strategies and analyzing the stability of the controlled missile and implementing robust control. The achievements and results obtained are valuable and helpful to the theoretical explorations and engineering applications.

  3. Influence of Missile Fusillade Engagement Mode on Operation Efficiency

    Institute of Scientific and Technical Information of China (English)

    BU Xian-jin; REN Yi-guang; SHA Ji-chang

    2008-01-01

    Shoot efficiency is one of the most important evaluation indexes of the operation efficiency of weapon system. In this paper, based on definitions of the probability and the expected number of missed attacking missiles, the expected numbers of anti-missiles and attacking missiles hit by single anti-missile, fusillade mechanism of multi-missile is analyzed systematically. The weapon operation efficiency in various engagement patterns is also studied. The results show that double missiles fusillade is the most feasible manner for increasing the weapon operation efficiency.

  4. Leidenfrost explosions

    CERN Document Server

    Moreau, F; Dorbolo, S

    2012-01-01

    We present a fluid dynamics video showing the behavior of Leidenfrost droplets composed by a mixture of water and surfactant (SDS, Sodium Dodecyl sulfate). When a droplet is released on a plate heated above a given temperature a thin layer of vapor isolates the droplet from the plate. The droplet levitates over the plate. This is called the Leidenfrost effect. In this work we study the influence of the addition of a surfactant on the Leidenfrost phenomenon. As the droplet evaporates the concentration of SDS rises up to two orders of magnitude over the Critical Micelle Concentration (CMC). An unexpected and violent explosive behavior is observed. The video presents several explosions taken with a high speed camera (IDT-N4 at 30000 fps). All the presented experiments were performed on a plate heated at 300{\\deg}C. On the other hand, the initial quantity of SDS was tuned in two ways: (i) by varying the initial concentration of SDS and (ii) by varying the initial size of the droplet. By measuring the volume of th...

  5. Missile captive carry monitoring using a capacitive MEMS accelerometer

    Science.gov (United States)

    Hatchell, Brian; Mauss, Fred; Santiago-Rojas, Emiliano; Amaya, Ivan; Skorpik, Jim; Silvers, Kurt; Marotta, Steve

    2010-03-01

    Military missiles are exposed to many sources of mechanical vibration that can affect system reliability, safety, and mission effectiveness. One of the most significant exposures to vibration occurs when the missile is being carried by an aviation platform, which is a condition known as captive carry. If the duration of captive carry exposure could be recorded during the missile's service life, several advantages could be realized. Missiles that have been exposed to durations outside the design envelop could be flagged or screened for maintenance or inspection; lightly exposed missiles could be selected for critical mission applications; and missile allocation to missions could be based on prior use to avoid overuse. The U. S. Army Aviation and Missile Research Development and Engineering Center (AMRDEC) has been developing health monitoring systems to assess and improve reliability of missiles during storage and field exposures. Under the direction of AMRDEC staff, engineers at the Pacific Northwest National Laboratory have developed a Captive Carry Health Monitor (CCHM) for the HELLFIRE II missile. The CCHM is an embedded usage monitoring device installed on the outer skin of the HELLFIRE II missile to record the cumulative hours the host missile has been in captive carry mode and thereby assess the overall health of the missile. This paper provides an overview of the CCHM electrical and package design, describes field testing and data analysis techniques used to identify captive carry, and discusses the potential application of missile health and usage data for real-time reliability analysis and fleet management.

  6. Three-Dimensional Route Planning for a Cruise Missile for Minimal Detection by Observer

    Science.gov (United States)

    1989-06-01

    path-name () ; make a new name for a path ( gensym (incf *path-counter*)) (intern ( gensym "path"))) (defun mnit-new-path (start end volumes facets lines...item-name ( (genaym (matf *agenda-counter*)) (intern ( gensym "agenda"))) (defun init-agenda-item (volume cost evaluation path fuel TAS) (let ((name... gensym (incf *observer-counter*)) (intern ( gensym "observer"))) b (defun init-observer (coord effectivness) (let* ((temp (make-observer-name)) (position

  7. The LRCM: (the Long-Range Strategic Cruise Missile) Asymmetries, Deterrence and SAL (Strategic Arms Limitation)

    Science.gov (United States)

    1976-03-01

    SSKP SSM TERCOM TKP TRIAD Nautical mile Nonreprogramable reliability Overall reliability Precision navigation aid Pounds per square inch Absorbed...guidance principle, based on terrain matching and recognition, is known as Tercom . 19 Tercom operates on the principle that the geographic location of any...place on the earth is uniquely defined by vertical contours, or topography, of the surrounding area. Tercom requires previous mapping or other

  8. Evaluating Novel Threats to the Homeland. Unmanned Aerial Vehicles and Cruise Missiles

    Science.gov (United States)

    2008-01-01

    available from www.rand.org as a public service of the RAND Corporation. 6Jump down to document THE ARTS CHILD POLICY CIVIL JUSTICE EDUCATION ENERGY AND...device, and selection of the desired altitude could simply require identifying on which floor of a skyscraper the device should be placed for the attack...Defense and Energy Research and Development Agency, 1977. Gormley, Dennis M., “Globalization and WMD Proliferation Networks: The Case of Unmanned Air

  9. Joint Land Attack Cruise Missile Defense Elevated Netted Sensor System (JLENS) Land-Based Testing Sites

    Science.gov (United States)

    2007-09-01

    halophytic (plants adapted to living in a saline environment) habitat type with red swampfire, a native annual forb and iodine bush, a native perennial...sedges, iodine bush, red swampfire, Gard- ner saltbush, rabbitbrush, and greasewood. Non-native plants include salt cedar, Russian olive, kochia, and...issues, federal agencies must identify and address disproportionately high and adverse effects of federal projects on the health or environment of

  10. Leader/Follower Second Sourcing Strategy as Implemented by the Joint Cruise Missile Project Office.

    Science.gov (United States)

    1980-09-01

    was totally unacceptable to WRC. By way of a compromise Teledyne CAE ( TCAE ) of Toledo, Ohio, was selected by WRC and approved by the Program Office. 4...manufacturing drawings and techniques, tool designs, and process specifications. 65 b. Provide personnel to TCAE to assist in interpreting and...implementing these drawings. c. Qualify TCAE as producer by fiscal year 1982. Government personnel described the implementation of the Technology Transfer as

  11. Long-Range Precision-Strike Cruise Missiles in Nato Operations

    Science.gov (United States)

    2014-03-01

    Downfall: Operation Unified Protector.” AINonline, November 13, 2011, last accessed February 17, 2014, http://www.ainonline.com/aviation-news/ dubai ...significantly, thus creating a new set of security threats (increases in ethnic conflicts, terrorist threats, nuclear proliferation, organized...Unified Protector.” AINonline. November 13, 2011. Last accessed February 17, 2014. http://www.ainonline.com/aviation-news/ dubai -air-show/2011–11– 10

  12. Bounceback Self-Marketing. The "Cruise Missile Marketer's Approach to Gaining the Winning Edge." Third Edition.

    Science.gov (United States)

    Magee, Jeffrey L.

    Intended originally as a job search book for college students, this book presents a "system-approach" for college students, college graduates, or already employed individuals to achieve success. The book suggests ideas and outlines techniques on how to be a more effective communicator, writer, planner, brainstormer, goal attainer,…

  13. Explosive Formulation Pilot Plant

    Data.gov (United States)

    Federal Laboratory Consortium — The Pilot Plant for Explosive Formulation supports the development of new explosives that are comprised of several components. This system is particularly beneficial...

  14. Chaotic Explosions

    CERN Document Server

    Altmann, Eduardo G; Tél, Tamás

    2015-01-01

    We investigate chaotic dynamical systems for which the intensity of trajectories might grow unlimited in time. We show that (i) the intensity grows exponentially in time and is distributed spatially according to a fractal measure with an information dimension smaller than that of the phase space,(ii) such exploding cases can be described by an operator formalism similar to the one applied to chaotic systems with absorption (decaying intensities), but (iii) the invariant quantities characterizing explosion and absorption are typically not directly related to each other, e.g., the decay rate and fractal dimensions of absorbing maps typically differ from the ones computed in the corresponding inverse (exploding) maps. We illustrate our general results through numerical simulation in the cardioid billiard mimicking a lasing optical cavity, and through analytical calculations in the baker map.

  15. 77 FR 50511 - Fees for Sanitation Inspections of Cruise Ships

    Science.gov (United States)

    2012-08-21

    ... 1970s as a cooperative activity with the cruise ship industry. VSP helps the cruise ship industry... October 1, 2006. The cruise ship industry should be aware that if travel expenses for VSP increase,...

  16. Missile Captive Carry Monitoring using a Capacitive MEMS Accelerometer

    Energy Technology Data Exchange (ETDEWEB)

    Hatchell, Brian K.; Mauss, Fredrick J.; Santiago-Rojas, Emiliano; Amaya, Ivan A.; Skorpik, James R.; Silvers, Kurt L.; Marotta, Steve

    2010-04-08

    Military missiles are exposed to many sources of mechanical vibration that can affect system reliability, safety, and mission effectiveness. One of the most significant exposures to vibration occurs when the missile is being carried by an aviation platform, which is a condition known as captive carry. If the duration of captive carry exposure could be recorded during the missile’s service life, several advantages could be realized. Missiles that have been exposed to durations outside the design envelop could be flagged or screened for maintenance or inspection; lightly exposed missiles could be selected for critical mission applications; and missile allocation to missions could be based on prior use to avoid overuse. The U. S. Army Aviation and Missile Research Development and Engineering Center (AMRDEC) has been developing health monitoring systems to assess and improve reliability of missiles during storage and field exposures. Under the direction of AMRDEC staff, engineers at the Pacific Northwest National Laboratory have developed a Captive Carry Health Monitor (CCHM) for the HELLFIRE II missile. The CCHM is an embedded usage monitoring device installed on the outer skin of the HELLFIRE II missile to record the cumulative hours the host missile has been in captive carry mode and thereby assess the overall health of the missile. This paper provides an overview of the CCHM electrical and package design, describes field testing and data analysis techniques used to identify captive carry, and discusses the potential application of missile health and usage data for real-time reliability analysis and fleet management.

  17. Theater Ballistic Missile Defense Policy, Missions and Programs: Current Status

    Science.gov (United States)

    2007-11-02

    destroy its target. A French-Italian program called SAMP/T (Sol-Air Moyenne Portee/ Terrestre ) is being considered for a point defense system; further...Patriot PAC-3 missile. The Multimode Missile includes semi-active track- via -missile guidance, improved propulsion and uses an aimed blast

  18. The effectiveness of the U.S. missile defense capabilities as a deterrent to the North Korean missile threat

    OpenAIRE

    Gipson, Issac G.

    2007-01-01

    Over the last five years, America has placed an ever-increasing emphasis on missile defense and currently spends nearly $10 billion annually on its development. The United States' current missile Defense system is integrated; it depends on the cooperation of defensive elements aboard ships, on land, in the air and space. The objective is to provide a layered defense with multiple opportunities to destroy an incoming missile. By investing heavily in missile defense technology, the United ...

  19. The new politics of missile proliferation

    Energy Technology Data Exchange (ETDEWEB)

    Karp, A. [Old Dominion Univ., Norfolk, VA (United States)

    1996-10-01

    The author addresses the most consequential proliferation battle of the 1990s which occurred in Washington over the interpretation of the long-term threat to the United States from ballistic missiles. In the early 1970s, the stabilization of the US-Soviet strategic relationship led to new disputes over the other side`s future intentions, seen most graphically in Western debates over the implications of the Soviet SS-18 and SS-20 missile programs. Today, in much the same way, proliferation politics has matured to the point that surprises are few and the most challenging problem is anticipating the more distant future. Washington`s ballistic missile proliferation battle was sparked by National Intelligence Estimate (NIE) 95-19, entitled {open_quotes}Emerging Threats to North America During the Next 15 Years,{close_quotes} released by the National Intelligence Council in November 1995. This document updated the evidence of regional missile programs reviewed in a similar report issued in 1993, and recapitulated the previous finding that {open_quotes}No country, other than the major declared nuclear powers, will develop or otherwise acquire a ballistic missile in the next 15 years that could threatened the contiguous 48 states or Canada.{close_quotes} The new report confirmed what several other studies of missile proliferation had already established: that besides the five nuclear-weapon states (the United States, Russia, China, France and Britain), only India, Israel and Japan are in a position to develop an ICBM during the foreseeable future, and while all have relevant capabilities, none are undertaking the steps necessary to develop an actual ICBM.

  20. Chemical profiling of explosives

    NARCIS (Netherlands)

    Brust, G.M.H.

    2014-01-01

    The primary goal of this thesis is to develop analytical methods for the chemical profiling of explosives. Current methodologies for the forensic analysis of explosives focus on identification of the explosive material. However, chemical profiling of explosives becomes increasingly important, as

  1. Current Trends in Tactical Missile Guidance

    Directory of Open Access Journals (Sweden)

    S. Vathsal

    2005-07-01

    Full Text Available The problem of tactical missile guidance is very challenging and has been treated using several basic metlfodologies in the past four decades. Major techniques can be grouped underclassical guidance laws, modern guidance laws, l'aws for manoeuvring targets, predictive guidance for endgame scenario, and guidance laws based on intelligent control methods. Each technique has some advantages and disadvantages while implementing in a practical system. Guidance law selection is dictated by nature of flight profile like boost, midcourse, terminal homing, etc, and also miss-distance and a single-shot kill probability. This paper presents a brief survey of the existing techniques and current trends in tactical missile guidance.

  2. Air and Missile Defense Radar (AMDR)

    Science.gov (United States)

    2015-12-01

    March 8, 2016 11:04:34 UNCLASSIFIED 4 CAPT Seiko Okano 1333 Isaac Hull Ave , SE Washington, DC 20376-7101 seiko.okano@navy.mil Phone: 202-781-0461 Fax: DSN...to the combat system. AMDR will be deployed on the Guided Missile Destroyer (DDG) 51 Flight III. AMDR December 2015 SAR March 8, 2016 11:04:34...Abbreviations Ao - Operational Availability CMS - Combat Management System DDG - Guided Missile Destroyer kW - Kilowatt TTL - Training Task List AMDR December

  3. Supernova explosions

    CERN Document Server

    Branch, David

    2017-01-01

    Targeting advanced students of astronomy and physics, as well as astronomers and physicists contemplating research on supernovae or related fields, David Branch and J. Craig Wheeler offer a modern account of the nature, causes and consequences of supernovae, as well as of issues that remain to be resolved. Owing especially to (1) the appearance of supernova 1987A in the nearby Large Magellanic Cloud, (2) the spectacularly successful use of supernovae as distance indicators for cosmology, (3) the association of some supernovae with the enigmatic cosmic gamma-ray bursts, and (4) the discovery of a class of superluminous supernovae, the pace of supernova research has been increasing sharply. This monograph serves as a broad survey of modern supernova research and a guide to the current literature. The book’s emphasis is on the explosive phases of supernovae. Part 1 is devoted to a survey of the kinds of observations that inform us about supernovae, some basic interpreta tions of such data, and an overview of t...

  4. Cruise ship seakeeping and passenger comfort

    NARCIS (Netherlands)

    Dallinga, R.P.; Bos, J.E.

    2010-01-01

    In the last decade the design and construction of a substantial volume of large cruise ships has stimulated the evolution of cruise ship design. The MARIN and TNO involvement in these developments, and in particular the increase in size, have lead to new insights in how the ship design governs passe

  5. An analysis of Common Missile and TOW 2B using the Janus combat simulation

    OpenAIRE

    2002-01-01

    Approved for public release; distribution is unlimited. The US Army is currently developing a new close combat missile system, Common Missile, to replace the aging Tubelaunched, Optically-tracked, Wire-guided (TOW 2B) and HELLFIRE missile systems. The Common Missile will have a greater range and improved target acquisition capability over the current missile systems. The purpose of this thesis is to compare the performance of the Common Missile and the TOW 2B missile in a simulated ground ...

  6. Cruise Ship Plume Tracking Survey Report

    Science.gov (United States)

    2002-09-01

    The U. S. Environmental Protection Agency (EPA) is developing a Cruise Ship Discharge Assessment Report in response to a petition the agency received in March 2000. The petition requested that EPA assess and where necessary control discharges from cruise ships. Comments received during public hearings, in 2000, resulted in the EPA agreeing to conduct a survey to assess the discharge plumes resulting from cruise ships, operating in ocean waters off the Florida coast and to compare the results to the Alaska dispersion models. This survey report describes the daily activities of August 2001 Cruise Ship Plume Tracking Survey, and provides a synopsis of the observations from the survey. It also provides data that can be used to assess dispersion of cruise ship wastewater discharges, while in transit. A description of the survey methods is provided in Section 2. Survey results are presented in Section 3. Findings and conclusions are discussed in Section 4.

  7. Rationale for wind-borne missile criteria for DOE facilities

    Energy Technology Data Exchange (ETDEWEB)

    McDonald, J R; Murray, R

    1999-09-01

    High winds tend to pick up and transport various objects and debris, which are referred to as wind-borne missiles or tornado missiles, depending on the type of storm. Missiles cause damage by perforating the building envelope or by collapsing structural elements such as walls, columns or frames. The primary objectives of this study are as follows: (1) to provide a basis for wind-borne or tornado missile criteria for the design and evaluation of DOE facilities, and (2) to provide guidelines for the design and evaluation of impact-resistant missile barriers for DOE facilities The first objective is accomplished through a synthesis of information from windstorm damage documentation experience and computer simulation of missile trajectories. The second objective is accomplished by reviewing the literature, which describes various missile impact tests, and by conducting a series of impact tests at a Texas Tech University facility to fill in missing information.

  8. CRANIOCEREBRAL MISSILE INJURY A STATISTICAL REVIEW

    Directory of Open Access Journals (Sweden)

    ALI ALIMOHAMMADI

    1986-05-01

    Full Text Available A Statistical report of 912 battle casualtiesadmitted in a special unit of the neurological surgery department during 49 months of the recent war was given. Methods of their evaluation, operative categories, management poli¬cies including techniques of Missile and bullet removal, and their complications were discussed.

  9. Minimum variation guidance laws for interceptor missiles

    NARCIS (Netherlands)

    Weiss, M.; Shima, T.

    2014-01-01

    This paper introduces a new approach to guidance law design using linear quadratic optimal control theory, minimizing throughout the engagement the variation of the control input as well as the integral control effort. The guidance law is derived for arbitrary order missile dynamics and target maneu

  10. Understanding vented gas explosions

    Energy Technology Data Exchange (ETDEWEB)

    Lautkaski, R. [VTT Energy, Espoo (Finland). Energy Systems

    1997-12-31

    The report is an introduction to vented gas explosions for nonspecialists, particularly designers of plants for flammable gases and liquids. The phenomena leading to pressure generation in vented gas explosions in empty and congested rooms are reviewed. The four peak model of vented gas explosions is presented with simple methods to predict the values of the individual peaks. Experimental data on the external explosion of dust and gas explosions is discussed. The empirical equation relating the internal and external peak pressures in vented dust explosions is shown to be valid for gas explosion tests in 30 m{sup 3} and 550 m{sup 3} chambers. However, the difficulty of predicting the internal peak pressure in large chambers remains. Methods of explosion relief panel design and principles of vent and equipment layout to reduce explosion overpressures are reviewed. (orig.) 65 refs.

  11. 印度导弹武器装备体系发展与前景分析%Analysis of Indian Missile Weapon System Development

    Institute of Scientific and Technical Information of China (English)

    张莹

    2012-01-01

    随着国际安全环境的重大变化,印度加紧了其军事战略的调整和军队建设的步伐,大力发展导弹武器体系建设,对周边国家和地区形成了安全威胁.在分析印度军事战略的基础上,重点阐述印度弹道导弹、巡航导弹、防空导弹和导弹防御系统等武器装备体系的建设情况,并分析了其发展趋势和未来前景.%With the tremendous changes of the international security environment, India promotes the military strategy adjustment and the military construction, and pays great attention to the development of missile weapon system, threatening to the security of neighboring countries and regions. Beginning with the Indian military strategy, this paper describes the Indian weapon system construction in depth, such as the ballistic missile, cruise missile, air defense system and ballistic missile defense system .ete. Finally future development trend and prospect are analyzed.

  12. 78 FR 64246 - Commerce in Explosives; List of Explosives Materials

    Science.gov (United States)

    2013-10-28

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF JUSTICE Bureau of Alcohol, Tobacco, Firearms, and Explosives Commerce in Explosives; List of Explosives Materials AGENCY: Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF); Department of Justice. ACTION:...

  13. Prey detection in a cruising copepod

    DEFF Research Database (Denmark)

    Kjellerup, Sanne; Kiørboe, Thomas

    2012-01-01

    Small cruising zooplankton depend on remote prey detection and active prey capture for efficient feeding. Direct, passive interception of prey is inherently very inefficient at low Reynolds numbers because the viscous boundary layer surrounding the approaching predator will push away potential prey....... Yet, direct interception has been proposed to explain how rapidly cruising, blind copepods feed on non-motile phytoplankton prey. Here, we demonstrate a novel mechanism for prey detection in a cruising copepod, and describe how motile and non-motile prey are discovered by hydromechanical and tactile...

  14. Prey detection in a cruising copepod

    DEFF Research Database (Denmark)

    Kjellerup, Sanne; Kiørboe, Thomas

    2012-01-01

    Small cruising zooplankton depend on remote prey detection and active prey capture for efficient feeding. Direct, passive interception of prey is inherently very inefficient at low Reynolds numbers because the viscous boundary layer surrounding the approaching predator will push away potential prey....... Yet, direct interception has been proposed to explain how rapidly cruising, blind copepods feed on non-motile phytoplankton prey. Here, we demonstrate a novel mechanism for prey detection in a cruising copepod, and describe how motile and non-motile prey are discovered by hydromechanical and tactile...

  15. Totally confined explosive welding

    Science.gov (United States)

    Bement, L. J. (Inventor)

    1978-01-01

    The undesirable by-products of explosive welding are confined and the association noise is reduced by the use of a simple enclosure into which the explosive is placed and in which the explosion occurs. An infrangible enclosure is removably attached to one of the members to be bonded at the point directly opposite the bond area. An explosive is completely confined within the enclosure at a point in close proximity to the member to be bonded and a detonating means is attached to the explosive. The balance of the enclosure, not occupied by explosive, is filled with a shaped material which directs the explosive pressure toward the bond area. A detonator adaptor controls the expansion of the enclosure by the explosive force so that the enclosure at no point experiences a discontinuity in expansion which causes rupture. The use of the technique is practical in the restricted area of a space station.

  16. Cell phone explosion.

    Science.gov (United States)

    Atreya, Alok; Kanchan, Tanuj; Nepal, Samata; Pandey, Bhuwan Raj

    2016-03-01

    Cell phone explosions and resultant burn injuries are rarely reported in the scientific literature. We report a case of cell phone explosion that occurred when a young male was listening to music while the mobile was plugged in for charging.

  17. NEW EXPLOSIVE WELDING TECHNIQUES

    OpenAIRE

    Lotous, V.; Dragobetskii, V.

    2015-01-01

    Purpose - analysis of the variety of factors of the physical phenomena accompanying the process of the power explosive effect for development of new processes of metal treatment: explosive film coating of hardening and updating of a superficial layer of an item. Industrial approbation of cladding techniques by explosion of item surfaces of complex configuration and determination of parameters of the process of the explosive welding of high-strength pig-iron (graphite of the spherical form) wi...

  18. Photoacoustic Sensing of Explosives

    Science.gov (United States)

    2013-11-01

    NOV 2013 2. REPORT TYPE 3. DATES COVERED 00-00-2013 to 00-00-2013 4. TITLE AND SUBTITLE Photoacoustic Sensing of Explosives 5a. CONTRACT NUMBER...2013www.ll.mit.edu Photoacoustic Sensing of Explosives (PHASE) is a promising new technology that detects trace explosive residues from significant... photoacoustic phenomena resulting from ultraviolet laser excitation. Exposed explosives are excited up to 100 meters away by using PHASE’s

  19. Inspection tester for explosives

    Science.gov (United States)

    Haas, Jeffrey S.; Simpson, Randall L.; Satcher, Joe H.

    2007-11-13

    An inspection tester that can be used anywhere as a primary screening tool by non-technical personnel to determine whether a surface contains explosives. It includes a body with a sample pad. First and second explosives detecting reagent holders and dispensers are operatively connected to the body and the sample pad. The first and second explosives detecting reagent holders and dispensers are positioned to deliver the explosives detecting reagents to the sample pad. A is heater operatively connected to the sample pad.

  20. Explosive Line Wave Generators

    Science.gov (United States)

    2013-12-01

    curvature produced by each line wave generator. Piezoelectric pins were used for an additional assessment of the explosive lens design...to a visual assessment of the wave curvature from the high speed camera images, the explosive lens design was also evaluated using piezoelectric pins...High Explosive Firing Complex (HEFC). The various explosive line wave generators were taped vertically on a supporting board and the detonation wave

  1. Modeling and Simulating Dynamics of Missiles with Deflectable Nose Control

    Institute of Scientific and Technical Information of China (English)

    Gao Yuan; Gu Liangxian; Pan Lei

    2009-01-01

    This article investigates the dynamic characteristics of deflectable nose missiles with rotary single-channel control. After introduction of effective attack and sideslip angles as well as quasi-body coordinates based on the spin characteristics of the missile's body, an integrated rigid kinetic model of missile with deflectable nose control is set up in the quasi-body coordinates considering the interaction between the missile's nose and body by using rootless multi-rigid-body system dynamics and is linearized. Then an analysis with simulation is conducted to investigate the coupling characteristics between the channels, the influences of nose deflection on the body and the dynamic characteristics of missile's body. The results indicate that various channels of missiles with deflectable nose control are coupled cross-linked; the nose deflection tends to make the body move in the opposite direction and, finally, evidences the correctness and reasonability of the kinetic model proposed by this article.

  2. A "broken heart" on a cruise ship.

    Science.gov (United States)

    Taylor, Christopher

    2015-01-01

    An elderly female cruise ship passenger developed chest pain shortly after an emotionally charged incident involving shipboard authorities. The electrocardiogram and cardiac enzyme profile were indicative of myocardial infarction but the final diagnosis, established after aeromedical evacuation, was stress-related cardiomyopathy. This case is an example of a relatively unknown clinical entity that is easily mistaken for acute myocardial infarction and which may be disproportionately prevalent in the cruise ship passenger population.

  3. Staphylococcal food poisoning on a cruise ship.

    OpenAIRE

    Waterman, S H; Demarcus, T. A.; Wells, J G; Blake, P A

    1987-01-01

    Two waves of vomiting and/or diarrhoea affected approximately 215 of the 715 passengers on a Caribbean cruise ship. The outbreak was independently associated with eating cream-filled pastries at two separate meals. Staphylococcus aureus phage type 85/+ was isolated from cases and pastry cooks, but not from controls. This is the first well-documented outbreak of staphylococcal food poisoning on a cruise ship.

  4. User Friendly Explosives Reactive Armour a Long term Reality

    Directory of Open Access Journals (Sweden)

    S. N. Dikshit

    1997-04-01

    Full Text Available Abstract : There is a strong need to develop explosive reactive armour (ERA for protecting battle tanks against an emerging threat of kinetic and chemical energy missiles. In this context, global trends, principle and limitations of ERA and threat perception-based types of ERA have been dwelt upon. User-friendly ERA is a long-term reality. User-friendly ERA system is thus defined to be an efficient and protective system that not only provide full protection to the tank crew, but is also harmless to the supporting infantory. The indigenously-developed ERA system is close to be termed as a user-friendly ERA.

  5. Ballistic Missile Silo Door Monitoring Analysis

    Energy Technology Data Exchange (ETDEWEB)

    EDENBURN,MICHAEL W.; TROST,LAWRENCE C.

    2000-01-01

    This paper compares the cost and effectiveness of several potential options that may be used to monitor silo-based ballistic missiles. Silo door monitoring can be used to verify that warheads removed to deactivate or download silo-based ballistic missiles have not been replaced. A precedent for monitoring warhead replacement using reentry vehicle on site inspections (RV-OSIs) and using satellites has been established by START-I and START-II. However, other monitoring options have the potential to be less expensive and more effective. Three options are the most promising if high verification confidence is desired: random monitoring using door sensors; random monitoring using manned or unmanned aircraft; and continuous remote monitoring using unattended door sensors.

  6. Using NASTRAN to model missile inertia loads

    Science.gov (United States)

    Marvin, R.; Porter, C.

    1985-01-01

    An important use of NASTRAN is in the area of structural loads analysis on weapon systems carried aboard aircraft. The program is used to predict bending moments and shears in missile bodies, when subjected to aircraft induced accelerations. The missile, launcher and aircraft wing are idealized, using rod and beam type elements for solution economy. Using the inertia relief capability of NASTRAN, the model is subjected to various acceleration combinations. It is found to be difficult to model the launcher sway braces and hooks which transmit compression only or tension only type forces respectively. A simple, iterative process was developed to overcome this modeling difficulty. A proposed code modification would help model compression or tension only contact type problems.

  7. Ballistic Missile Defense: New Plans, Old Challenges

    Directory of Open Access Journals (Sweden)

    Elizabeth Zolotukhina

    2010-01-01

    Full Text Available On September 17, 2009—the 70th anniversary of the Soviet invasion of Poland in 1939 that marked the beginning of World War II—the Obama Administration announced its intention to shelve plans for the U.S. Ballistic Missile Defense (BMD that had been developed under former President George W. Bush. Pointing to a new intelligence assessment, President Obama argued that his predecessor's plan to deploy an X-band radar station outside of Prague, Czech Republic, and 10 two-stage interceptor missiles in Poland would not adequately protect America and its European allies from the Iranian threat and reiterated his opposition to utilizing unproven technology in any European BMD architecture.

  8. Reliability Simulation for a Missile Tank Under Random Loading

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    This paper presents a Monte-Carlo simulation method to calculate intensity relia- bility for a missile tank under random loading. The cumulative damage mathematical mod- el is established, and it adopts a direct simulation method to present random loading and o-riginal intensity for a missile tank. It can effectively predict intensity reliability for a missile tank in the environment of transport and flight.

  9. Theater Missile Defenses and U.S. Foreign Policy

    Science.gov (United States)

    1992-01-01

    and Joseph Rotblat (London: Macmillan Press, 1987), p. 171. 11 dowry " to alleviate European fears of being left defenseless as the U.S. retreated behind...surface missile, the design of which came from reverse-engineering of U.S. Nike-Hercules surface-to-air missiles. 59 India could be on the verge of...indigenous production with the testing of its Privthi missile. India has also demonstrated successful development of an indigenous space launch capacity

  10. On the Dynamic Stability of a Missile

    Directory of Open Access Journals (Sweden)

    K.C. Sharma

    1977-01-01

    Full Text Available The P-method given by Parks and Pritchard has been used to discuss the stability behaviour of a missile in free flight. General stability criteria for aerodynamic stabilisation have been obtained for slowly varying coefficients. The effect of pressure gradient on the stability of a coasting rocket has been explicitly examined. It is observed that the positive Magnus moment parameter ensures stability whereas a negative moment parameter would enhance the requirements of a larger stability margin.

  11. Sustainability Of The 21M Missile Maintainer

    Science.gov (United States)

    2016-02-16

    considering alternative career field models for missile maintenance officers. Benefits can include discovering lessons learned and best practices to improve...entire ICBM community in mitigating today’s problems and securing the confidence of the service and public. Introduction Mission failure has...which are applied to an alternative ICBM career field model . The paper closes in offering conclusions and recommendations about improving the health

  12. The Future of Theater Missile Defense

    Science.gov (United States)

    1994-06-01

    withERINT) 1,500 IVf 74C 1998 3.0 Navy Lower-Tier Defense 1,820 SO4 50* 1999° 3* THAAD(withTMD-GBR) 1,313 80 14 2001e 9.1 AdvaaoedCapabflitylMD Systems...Administration cannot, by itself, provide a sufficient buffer between theater and strategic missile defenses. Other limits must be included. Finally, the

  13. Intelligent Design and Implementation of Missile Fire Control System

    Institute of Scientific and Technical Information of China (English)

    XIE Chun-si; WANG Min-qing; LI Wei-hai; LIU Xi-zuo; JIN Liang-an

    2006-01-01

    Missile fire control system is the core of ship-based missile weapon system, whose safeguard levelhas direct relation with the attack ability of naval vessels. After a long period of deep investigation and research, it was found that, in one missile fire control system, there are such problems as single safeguard system, low ratio of cost to efficiency, etc. By adopting intelligent control techniques and many measures to multiple securities, the new type of assistant system is designed, some difficult problems are solved, such as fixed project channel and unitary means of missiles, which can make the equipment carry out combat mission reliably and continuously.

  14. Estimation of ex-vessel steam explosion pressure loads

    Energy Technology Data Exchange (ETDEWEB)

    Leskovar, Matjaz [Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia)], E-mail: matjaz.leskovar@ijs.si; Ursic, Mitja [Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia)

    2009-11-15

    An ex-vessel steam explosion may occur when, during a severe reactor accident, the reactor vessel fails and the molten core pours into the water in the reactor cavity. A steam explosion is a fuel coolant interaction process where the heat transfer from the melt to water is so intense and rapid that the timescale for heat transfer is shorter than the timescale for pressure relief. This can lead to the formation of shock waves and production of missiles that may endanger surrounding structures. A strong enough steam explosion in a nuclear power plant could jeopardize the containment integrity and so lead to a direct release of radioactive material to the environment. In this article, different scenarios of ex-vessel steam explosions in a typical pressurized water reactor cavity are analyzed with the code MC3D, which is being developed for the simulation of fuel-coolant interactions. A parametric study was performed varying the location of the melt release (central, right and left side melt pour), the cavity water subcooling, the primary system overpressure at vessel failure and the triggering time for explosion calculations. The main purpose of the study was to establish the influence of the varied parameters on the fuel-coolant interaction behaviour, to determine the most challenging cases and to estimate the expected pressure loadings on the cavity walls. For the most explosive central, right side and left side melt pour scenarios a detailed analysis of the explosion simulation results was performed. The study shows that for some ex-vessel steam explosion scenarios higher pressure loads are predicted than obtained in the OECD programme SERENA phase 1.

  15. Autonomous intelligent cruise control system

    Science.gov (United States)

    Baret, Marc; Bomer, Thierry T.; Calesse, C.; Dudych, L.; L'Hoist, P.

    1995-01-01

    Autonomous intelligent cruise control (AICC) systems are not only controlling vehicles' speed but acting on the throttle and eventually on the brakes they could automatically maintain the relative speed and distance between two vehicles in the same lane. And more than just for comfort it appears that these new systems should improve the safety on highways. By applying a technique issued from the space research carried out by MATRA, a sensor based on a charge coupled device (CCD) was designed to acquire the reflected light on standard-mounted car reflectors of pulsed laser diodes emission. The CCD is working in a unique mode called flash during transfer (FDT) which allows identification of target patterns in severe optical environments. It provides high accuracy for distance and angular position of targets. The absence of moving mechanical parts ensures high reliability for this sensor. The large field of view and the high measurement rate give a global situation assessment and a short reaction time. Then, tracking and filtering algorithms have been developed in order to select the target, on which the equipped vehicle determines its safety distance and speed, taking into account its maneuvering and the behaviors of other vehicles.

  16. Wake-Vortex Hazards During Cruise

    Science.gov (United States)

    Rossow, Vernon J.; James, Kevin D.; Nixon, David (Technical Monitor)

    1998-01-01

    Even though the hazard posed by lift-generated wakes of subsonic transport aircraft has been studied extensively for approach and departure at airports, only a small amount of effort has gone into the potential hazard at cruise altitude. This paper reports on a studio of the wake-vortex hazard during cruise because encounters may become more prevalent when free-flight becomes available and each aircraft, is free to choose its own route between destinations. In order to address the problem, the various fluid-dynamic stages that vortex wakes usually go through as they age will be described along with estimates of the potential hazard that each stage poses. It appears that a rolling-moment hazard can be just as severe at cruise as for approach at airports, but it only persists for several minutes. However, the hazard posed by the downwash in the wake due to the lift on the generator aircraft persists for tens of minutes in a long narrow region behind the generating aircraft. The hazard consists of severe vertical loads when an encountering aircraft crosses the wake. A technique for avoiding vortex wakes at cruise altitude will be described. To date the hazard posed by lift-generated vortex wakes and their persistence at cruise altitudes has been identified and subdivided into several tasks. Analyses of the loads to be encounter and are underway and should be completed shortly. A review of published literature on the subject has been nearly completed (see text) and photographs of vortex wakes at cruise altitudes have been taken and the various stages of decay have been identified. It remains to study and sort the photographs for those that best illustrate the various stages of decay after they are shed by subsonic transport aircraft at cruise altitudes. The present status of the analysis and the paper are described.

  17. New Mix Explosives for Explosive Welding

    Science.gov (United States)

    Andreevskikh, Leonid

    2011-06-01

    Suggested and tested were some mix explosives--powder mixtures of a brisant high explosive (HE = RDX, PETN) and an inert diluent (baking soda)--for use in explosive welding. RDX and PETN were selected in view of their high throwing ability and low critical diameter. Since the decomposition of baking soda yields a huge amount of gaseous products, its presence ensures (even at a low HE percentage) a throwing speed that is sufficient for realization of explosive welding, at a reduced brisant action of charge. Mix chargers containing 30-70 wt % HE (the rest baking soda) have been tested experimentally and optimized. For study of possibility to reduce critical diameter of HE mixture, the mixture was prepared where HE crystal sizes did not exceed 10 μm. The tests, which were performed with this HE, revealed that the mixture detonated stably with the velocity D ~ 2 km/s, if the layer thickness was d = 2 mm. The above explosives afford to markedly diminish deformations within the oblique impact zone and thus to carry out explosive welding of hollow items and thin metallic foils.

  18. RRS "Charles Darwin" Cruise CD170 and RV "Knorr" Cruise KN182-2. RAPID mooring cruise report April - May 2005

    OpenAIRE

    S. A. Cunningham; D. Rayner

    2006-01-01

    This report describes the mooring operations conducted during RRS Charles Darwin Cruise CD170 and RV Knorr Cruise KN182-2. Cruise CD170 was conducted between 2 April 2005 and 27 April 2005, and Cruise KN182-2 was conducted between 2 May 2005 and 26 May 2005.\\ud \\ud These cruises were completed as part of the United Kingdom Natural Environment Research Council (NERC) funded RAPID Programme and the United States of America National Science Federation (NSF) funded MOCHA Programme to monitor the ...

  19. The Subduction Experiment, Cruise Report, RRS Charles Darwin Cruise Number 73. Subduction 3 Mooring Deployment and Recovery Cruise 30 September-26 October 1992

    Science.gov (United States)

    1993-03-01

    RRS Charles Darwin Cruise Number 73 Subduction 3 Mooring Deployment and Recovery Cruise 30 September -26 October 1992 * by T Richard P. Trask 1.7 i•; A...RRS Charles Darwin cruise number 73 which was the third scheduled Subduction mooring cruise. During this cruise the second setting of the moorings...14 Table A6-1 XBT Positions 82 I S "I U Im ’i i i n I Section 1: Introduction The RRS Charles Darwin departed Funchal, Madeira at 0910 UTC on

  20. Prospect of Cruising in Boka Kotorska

    Directory of Open Access Journals (Sweden)

    Đurđica Perović

    2013-01-01

    Full Text Available The main objectives of this research are to get answers, to the following: the achieved level of development of cruise tourism in the Bay of Kotor; characteristics of cruise tourism in Kotor, what are the possibilities of innovation in the cruise tourism in the port of Kotor, how to adjust the cruise tourism sustainable development of Kotor, as a tourist destination? Merely by being a part of the Mediterranean, which represents a developing market in cruising, Boka Kotorska has endless potential. Yet, its significance is still to be recognized only if careful strategy of further development is followed. Having in mind that Boka Kotorska is a valuable natural and cultural heritage site, it is necessary to make assessments in terms of sustainability of this kind of tourism as well as actions that should be taken. Its limited geographical area, more suitable for minor boats and not ships, is something that should be taken into account. Other things such as tourist offer enrichment in the Old Town, including not just the seaside but background of Boka Kotorska in the tourist offer, would certainly improve the quality of tourist product. This would undoubtedly generate more profit.

  1. Cardiovascular emergencies in cruise ship passengers.

    Science.gov (United States)

    Novaro, Gian M; Bush, Howard S; Fromkin, Kenneth R; Shen, Michael Y; Helguera, Marcelo; Pinski, Sergio L; Asher, Craig R

    2010-01-15

    More than 10 million people, many elderly and likely to harbor cardiovascular (CV) disease, embark on cruise ship travel worldwide every year. The clinical presentation and outcome of CV emergencies presenting during cruise ship travel remain largely unknown. Our department provides contracted cardiology consultations to several large cruise lines. We prospectively maintained a registry of all such consultations during a 2-year period. One hundred consecutive patients were identified (age 66 +/- 14 years, range 18 to 90, 76% men). The most common symptom was chest pain (50%). The most common diagnosis was acute coronary syndrome (58%; ST elevation in 21% and non-ST elevation in 37%). On-board mortality was 3%. Overall, 73% of patients required hospital triage. Of the 25 patients triaged to our institution, 17 underwent a revascularization procedure. One patient died. Ten percent of patients had cardiac symptoms in the days or weeks before boarding; all required hospital triage. Access to a baseline electrocardiogram would have been clinically useful in 23% of cases. In conclusion, CV emergencies, such as acute coronary syndrome and heart failure, are not uncommon on cruise ships. They are often serious, requiring hospital triage and coronary revascularization. A pretravel medical evaluation is recommended for passengers with a cardiac history or a high-risk profile. Passengers should be encouraged to bring a copy of their electrocardiogram on board if abnormal. Cruise lines should establish mechanisms for prompt consultation and triage.

  2. Trident II (D-5) Sea Launched Ballistic Missile UGM 133A (Trident II Missile)

    Science.gov (United States)

    2015-12-01

    on quality training and unscheduled down time on the rocket motor precision drilling machine . Trident II Missile December 2015 SAR March 17, 2016...chocks, Third Stage (TS) dollies and TS Motor Supports and completion of machining and welding for Aerospike Protective Caps; 2) Early delivery of

  3. Common Ada Missile Packages. Phase 2. (CAMP-2). Volume 2. 11th Missile Demonstration

    Science.gov (United States)

    1988-11-01

    bii t Ui< «i > i martial Sanaor Aaaaaibly 11th Miaaila Syatam Figure 1. 11th Missile Hardware Design TABLE 2. PROCESSORS AND THEIR FUNCTIONS...ualng Two Value Aretangant Coaputa Wander Ailauth Angle ualng Two Value Aretangant SUBTOTALS 132 14» 20 »003 North »olntlng HaTlgatlon » arta Coaputa

  4. Introduction of Women into Titan II Missile Operations.

    Science.gov (United States)

    1981-03-01

    areas (weapons system orientation: mnaintenance management. electronics principles , and technical publications. facility systems and missile Sfstents...Management. Electronics Principles . Technical Publications 97.00 2.63 94.04 5.27 2.31 Facility Systems 92.25 4.61 93.2) 5.80 -.62 Missile Systems 96.67 2.90

  5. A History of Polish Anti-Missile Defenses

    Science.gov (United States)

    1994-01-01

    tanks, 1,750 armored personnel carriers, transport 11 aircraft, helicopters, and several naval craft.ŕ The WOPK provided air space management and...targets which included missile-related threats.90 Comunnication was an integral part of missile warning. Since Poland’s WOPK was part of the PVOS, Warsaw

  6. Explosives tester with heater

    Science.gov (United States)

    Del Eckels, Joel [Livermore, CA; Nunes, Peter J [Danville, CA; Simpson, Randall L [Livermore, CA; Whipple, Richard E [Livermore, CA; Carter, J Chance [Livermore, CA; Reynolds, John G [San Ramon, CA

    2010-08-10

    An inspection tester system for testing for explosives. The tester includes a body and a swab unit adapted to be removeably connected to the body. At least one reagent holder and dispenser is operatively connected to the body. The reagent holder and dispenser contains an explosives detecting reagent and is positioned to deliver the explosives detecting reagent to the swab unit. A heater is operatively connected to the body and the swab unit is adapted to be operatively connected to the heater.

  7. Explosive Technology Group

    Data.gov (United States)

    Federal Laboratory Consortium — The Explosive Technology Group (ETG) provides diverse technical expertise and an agile, integrated approach to solve complex challenges for all classes of energetic...

  8. The science, technology, and politics of ballistic missile defense

    Science.gov (United States)

    Coyle, Philip E.

    2014-05-01

    America's missile defense systems are deployed at home and abroad. This includes the Groundbased Missile Defense (GMD) system in Alaska and California, the Phased Adaptive Approach in Europe (EPAA), and regional systems in the Middle East and Asia. Unfortunately these systems lack workable architectures, and many of the required elements either don't work or are missing. Major review and reconsideration is needed of all elements of these systems. GMD performance in tests has gotten worse with time, when it ought to be getting better. A lack of political support is not to blame as the DoD spends about 10 billion per year, and proposes to add about 5 billion over the next five years. Russia objects to the EPAA as a threat to its ICBM forces, and to the extensive deployment of U.S. military forces in countries such as Poland, the Czech Republic and Romania, once part of the Soviet Union. Going forward the U.S. should keep working with Russia whose cooperation will be key to diplomatic gains in the Middle East and elsewhere. Meanwhile, America's missile defenses face an enduring set of issues, especially target discrimination in the face of attacks designed to overwhelm the defenses, stage separation debris, chaff, decoys, and stealth. Dealing with target discrimination while also replacing, upgrading, or adding to the many elements of U.S. missiles defenses presents daunting budget priorities. A new look at the threat is warranted, and whether the U.S. needs to consider every nation that possesses even short-range missiles a threat to America. The proliferation of missiles of all sizes around the world is a growing problem, but expecting U.S. missile defenses to deal with all those missiles everywhere is unrealistic, and U.S. missile defenses, effective or not, are justifying more and more offensive missiles.

  9. The science, technology, and politics of ballistic missile defense

    Energy Technology Data Exchange (ETDEWEB)

    Coyle, Philip E. [Center for Arms Control and Non-Proliferation, Washington, DC (United States)

    2014-05-09

    America's missile defense systems are deployed at home and abroad. This includes the Groundbased Missile Defense (GMD) system in Alaska and California, the Phased Adaptive Approach in Europe (EPAA), and regional systems in the Middle East and Asia. Unfortunately these systems lack workable architectures, and many of the required elements either don't work or are missing. Major review and reconsideration is needed of all elements of these systems. GMD performance in tests has gotten worse with time, when it ought to be getting better. A lack of political support is not to blame as the DoD spends about $10 billion per year, and proposes to add about $5 billion over the next five years. Russia objects to the EPAA as a threat to its ICBM forces, and to the extensive deployment of U.S. military forces in countries such as Poland, the Czech Republic and Romania, once part of the Soviet Union. Going forward the U.S. should keep working with Russia whose cooperation will be key to diplomatic gains in the Middle East and elsewhere. Meanwhile, America's missile defenses face an enduring set of issues, especially target discrimination in the face of attacks designed to overwhelm the defenses, stage separation debris, chaff, decoys, and stealth. Dealing with target discrimination while also replacing, upgrading, or adding to the many elements of U.S. missiles defenses presents daunting budget priorities. A new look at the threat is warranted, and whether the U.S. needs to consider every nation that possesses even short-range missiles a threat to America. The proliferation of missiles of all sizes around the world is a growing problem, but expecting U.S. missile defenses to deal with all those missiles everywhere is unrealistic, and U.S. missile defenses, effective or not, are justifying more and more offensive missiles.

  10. Active explosion barrier performance against methane and coal dust explosions

    National Research Council Canada - National Science Library

    J. J. L. du Plessis

    2015-01-01

    Preventing the propagation of methane or coal dust explosions through the use of active explosion-suppression systems remains one of the most underutilised explosion controls in underground coal mines...

  11. Customer Relationship Management in Asia/Pacific Cruise Industry

    OpenAIRE

    Liu, Xiao Meng

    2006-01-01

    ABSTRACT This study has demonstrated Customer Relationship Management (CRM) in the cruise industry is vital for its long-term success. The globalization of business has directly influenced the overall business strategy of cruise companies worldwide. Many cruise companies are consolidating into a few large corporations through merger and acquisition. These big cruise companies are extending their businesses to every corner of the world, with increasing bigger ships providing high volume pa...

  12. Optimal speed of hypersonic cruise flight

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    A coupling frame of speed gain and maintain was suggested to assess the flight performance of hypersonic cruise vehicles(HCV).The optimal cruise speed was obtained by analyzing the flight performance measured by the ratio of initial boost mass to generalized payload.The performance of HCVs based on rockets and air-breathing ramjets was studied and compared to that of a minimum-energy ballistic trajectory under a certain flight distance.It is concluded that rocket-based HCVs flying at the optimal speed ar...

  13. Ervaringen met Advanced Cruise Control (ACC) in een korte praktijkproef.

    NARCIS (Netherlands)

    Oei, H.-l.

    2003-01-01

    Experiences with Advanced Cruise Control in traffic; a limited experiment. Advanced Cruise Control (ACC) is an ordinary cruise control in which the desired speed is installed manually, but in which the headway time to the vehicle in front is also taken into account. If the headway time becomes less

  14. 16 CFR 309.22 - Determining estimated cruising range.

    Science.gov (United States)

    2010-01-01

    ... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Determining estimated cruising range. 309.22... Fueled Vehicles § 309.22 Determining estimated cruising range. (a) Dedicated vehicles. (1) Estimated cruising range values for dedicated vehicles required to comply with the provisions of 40 CFR part 600...

  15. SWOT Amalysis on the Development of Cruise Tourism in Qingdao

    Institute of Scientific and Technical Information of China (English)

    王森

    2015-01-01

    As the cruise tourism develops prosperously in Qingdao,large numbers of problems exist.This paper researches the current situations of the cruise tourism in Qingdao and uses SWOT analysis to analyze the strengths, weaknesses, opportunities and threats for the development of cruise tourism in Qingdao.

  16. Recent Advances in Antitank Guided Missile Systems

    Directory of Open Access Journals (Sweden)

    N. R. Iyer

    1995-07-01

    Full Text Available The recent advances in tactical antitank guided missile (ATGM systems are discussed. The main driving factors for the technological advances towards realisation of third generation ATGM systems have been the more demanding operational needs of the user services and limitations of earlier generation ATGM systems. The tasks of system design, hardware realisation, integration, testing and qualification have become extremely challenging to meet these stringent operational requirements. The technologies required to be mobilised for meeting these operational requirements and performance envelope and satisfying the operational and logistics constraints are again very demanding. The high technology content and the high level of performance required out of the subsystems have led to the present generation missile systems. The evolution from the earlier generations to current systems has been briefly discussed. Imaging infrared (IIR and Millimetre wave (MMW guidance systems employed for achieving the fire and forget capability of the third generation ATGM are described with specific reference to progress achieved so far. Translating the mission requirements to preliminary system specifications is another area wherein an innovative approach only can lead to meet the multiple performance criteria. Performance growth profile and emerging trends in ATGM systems are also analysed.

  17. CT analysis of missile head injury

    Energy Technology Data Exchange (ETDEWEB)

    Besenski, N. [Dept. of Radiology, Zagreb Univ. Hospital Rebro (Croatia); Jadro-Santel, D. [Dept. of Neuropathology, Zagreb Univ. Hospital Rebro (Croatia); Jelavic-Koic, F. [Dept. of Radiology, General Hospital Sveti Duh, Zagreb (Croatia); Pavic, D. [Dept. of Neuropathology, Zagreb Univ. Hospital Rebro (Croatia); Mikulic, D. [Zagreb School of Medicine (Croatia); Glavina, K. [Dept. of Radiology, Clinical Hospital, Osijek (Croatia); Maskovic, J. [Dept. of Radiology, Clinical Hospital, Split (Croatia)

    1995-04-01

    Between August 1991 and December 1992, CT was performed in 154 patients who had suffered missile head injury during the war in the Republic of Croatia. In 54% CT was performed 1-24 h after injury, and in 27% follow-up CT was also obtained. The wounds were penetrating, tangential or perforating (45%, 34% and 21%, respectively). Haemorrhage was the most frequent lesion in the brain (84%). Follow-up CT evolution of haemorrhage, oedema, cerebritis, abscess, secondary vascular lesions, necrosis, encephalomalacia and hydrocephalus. The most dynamic changes occurred 7-14 days after injury. In 14% of cases, deep cerebral lesions were found in the corpus callosum, septum pellucidum periventricular region and pons, although bone and shell fragments were in a different part of the brain parenchyma. Such lesions were found in penetrating injuries only. CT proved very useful for assessing the extent and type of lesions. Although different mechanisms of brain damage in missile head injury are known, here they are, to the best of our knowledge, shown for the first time by CT. (orig.)

  18. Modelling cavitating flow around underwater missiles

    Directory of Open Access Journals (Sweden)

    Fabien Petitpas

    2011-12-01

    Full Text Available The diffuse interface model of Saurel et al. (2008 is used for the computation of compressible cavitating flows around underwater missiles. Such systems use gas injection and natural cavitation to reduce drag effects. Consequently material interfaces appear separating liquid and gas. These interfaces may have a really complex dynamics such that only a few formulations are able to predict their evolution. Contrarily to front tracking or interface reconstruction method the interfaces are computed as diffused numerical zones, that are captured in a routinely manner, as is done usually with gas dynamics solvers for shocks and contact discontinuity. With the present approach, a single set of partial differential equations is solved everywhere, with a single numerical scheme. This leads to very efficient solvers. The algorithm derived in Saurel et al. (2009 is used to compute cavitation pockets around solid bodies. It is first validated against experiments done in cavitation tunnel at CNU. Then it is used to compute flows around high speed underwater systems (Shkval-like missile. Performance data are then computed showing method ability to predict forces acting on the system.

  19. Imaging Detonations of Explosives

    Science.gov (United States)

    2016-04-01

    14. ABSTRACT The techniques and instrumentation presented in this report allow for mapping of temperature, pressure , chemical species, and...measurement in the explosive near- to far-field (0–500 charge diameters) of surface temperatures, peak air-shock pressures , some chemical species...15. SUBJECT TERMS imaging, explosions, temperature, pressure , chemical species 16. SECURITY CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT UU

  20. Explosions and static electricity

    DEFF Research Database (Denmark)

    Jonassen, Niels M

    1995-01-01

    The paper deals with the problem of electrostatic discharges as causes of ignition of vapor/gas and dust/gas mixtures. A series of examples of static-caused explosions will be discussed. The concepts of explosion limits, the incendiveness of various discharge types and safe voltages are explained...

  1. Melt Cast High Explosives

    Directory of Open Access Journals (Sweden)

    Stanisław Cudziło

    2014-12-01

    Full Text Available [b]Abstract[/b]. This paper reviews the current state and future developments of melt-cast high explosives. First the compositions, properties and methods of preparation of trinitrotoluene based (TNT conventional mixtures with aluminum, hexogen (RDX or octogen (HMX are described. In the newer, less sensitive explosive formulations, TNT is replaced with dinitroanisole (DNANDNANDNAN and nitrotriazolone (NTONTONTO, nitroguanidine (NG or ammonium perchlorate (AP are the replacement for RDRDX and HMX. Plasticized wax or polymer-based binder systems for melt castable explosives are also included. Hydroxyl terminated polybutadiene (HPTB is the binder of choice, but polyethylene glycol, and polycaprolactone with energetic plasticizers are also used. The most advanced melt-cast explosives are compositions containing energetic thermoplastic elastomers and novel highly energetic compounds (including nitrogen rich molecules in whose particles are nanosized and practically defect-less.[b]Keywords[/b]: melt-cast explosives, detonation parameters

  2. Innovation in Aerodynamic Design Features of Soviet Missiles

    Science.gov (United States)

    Spearman, M. Leroy

    2006-01-01

    Wind tunnel investigations of some tactical and strategic missile systems developed by the former Soviet Union have been included in the basic missile research programs of the NACA/NASA. Studies of the Soviet missiles sometimes revealed innovative design features that resulted in unusual or unexpected aerodynamic characteristics. In some cases these characteristics have been such that the measured performance of the missile exceeds what might have been predicted. In other cases some unusual design features have been found that would alleviate what might otherwise have been a serious aerodynamic problem. In some designs, what has appeared to be a lack of refinement has proven to be a matter of expediency. It is a purpose of this paper to describe some examples of unusual design features of some Soviet missiles and to illustrate the effectiveness of the design features on the aerodynamic behavior of the missile. The paper draws on the experience of the author who for over 60 years was involved in the aerodynamic wind tunnel testing of aircraft and missiles with the NACA/NASA.

  3. CRUISE FUZZY CONTROL FOR AUTOMOBILE WITH CVT

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    To develop cruise control system of an automobile with the metal pushing V-belt type CVT, the dynamic model of automobile travelling longitudinally is established, and the fuzzy controller of control system is designed. Considering uncertainty system parameter and exterior resistance disturbances, the stability of controller is investigated by simulating. The results of its simulation show that the fuzzy controller designed has practicability.

  4. Hydrographic data from the GEF Patagonia cruises

    Directory of Open Access Journals (Sweden)

    M. Charo

    2014-02-01

    Full Text Available The hydrographic data reported here were collected within the framework of the Coastal Contamination, Prevention and Marine Management project (GEF Patagonia, which was part of the scientific agenda of the United Nations Development Program (UNDP. The project goal was to strengthen efforts to improve sustainable management of marine biodiversity and reduce pollution of the Patagonia marine environment. The observational component of the project included three multi-disciplinary oceanographic cruises designed to improve the knowledge base of the marine environment and to determine the seasonal variability of physical, biological and chemical properties of highly productive regions in the southwest South Atlantic continental shelf. The cruises were carried out on board R/V Ara Puerto Deseado, in October 2005 and March and September 2006. In each cruise, hydrographic stations were occupied along cross-shelf sections spanning the shelf from near-shore to the western boundary currents between 38° and 55° S. This paper reports the quasi-continuous vertical profiles (CTD and underway surface temperature and salinity data collected during the GEF Patagonia cruises. These data sets are available at the National Oceanographic Data Center, NOAA. US, doi:10.7289/V5RN35S0.

  5. Masterplan Wind - Seabirds Cruise Report January 2011

    NARCIS (Netherlands)

    Witte, R.H.; Witte, L.

    2011-01-01

    This cruise report presents the seabird and marine mammal data collected during the 10th ‘fish egg and fish larvae’ survey on the Dutch Continental Shelf, in a series of 12 monthly surveys from April 2010 till March 2011.

  6. Strapdown inertial systems applications for tactical missiles (stand-off missiles)

    Science.gov (United States)

    Puech

    1986-06-01

    Strapdown Inertial Systems (SDIS) are particularly well suited for tactical standoff missile applications. This certainty was made clear by several years of theoretical design work and trials. Initial theoretical work made wide use of parameters giving detailed definition of missile trajectories and motions as obtained from measurements made on weapon systems then in development or production. Sensors (principally gyroscopes) were laboratory tested. These preliminary design efforts led to selection of various technologies such as the laser gyro and the mechanical gyro, each being adapted to the weapon system in question. Share-out of functions between various equipment items was defined. Comparison of the advantages and disadvantages of these technologies shows that today the laser gyro is principally retained for high and medium range levels of precision, with the mechanical (spin-stabilized) gyro serving in the medium and low precision range. Since requirements are ever increasing in the fields of dynamic performance and robustness, it is here that most progress is expected.

  7. TOW Missile Pallet MIL-STD-1660 Tests

    Science.gov (United States)

    1993-08-01

    0 DTICS ELECTE FEB 2 19941 FINAL REPORT C U ow AUGUST 1993 (V V Lfl3 NNE REPORT NO. 93-23 TOW MISSILE PALLET MIL- STD -1660 TESTS Prepared for...TITLE gOnakde Secwir Casaftedon) TOW Missile Pallet MIL- STD -1660 Tests 12. PERSONAL AUTHOR(S) Jason B. Solberg 13s. TYPE OF REPORT 13b. TIME COVERED...and Engineering Center (ARDEC) to test the TOW missile pallet. This report contains the procedures, results, and recommendations from the MIL- STD

  8. Research on ballistic missile laser SIMU error propagation mechanism

    Institute of Scientific and Technical Information of China (English)

    Wei Shihui; Xiao Longxu

    2008-01-01

    It is necessary that the laser inertial system is used to further improve the fire accuracy and quick reaction capability in the ballistic missile strapdown inertial navigation system. According to the guidance con-trolling method and the output and error model of ballistic missile laser SIMU, the mathematical model of error propagation mechanism is set up and any transfer environmental function of error coefficient that affects the fire accuracy is deduced. Also, the missile longitudinal/lateral impact point is calculated using MATLAB. These estab-lish the technical foundation for further researching the dispersion characteristics of impact point and reducing the laser guidance error.

  9. Missile antenna pattern coordinate system and data formats

    Science.gov (United States)

    1993-08-01

    Antenna performance data pertains to missile, space, and aerodynamic vehicles' transmitting or receiving antennas used with range data collection, missile trajectory measurements, impact predictions, communications, or flight termination systems. As used in this document, the terms missile space vehicle, airborne, and aerodynamic vehicle are synonymous. This standard is intended to cover antennas for telemetry, pulsed radar beacons, continuous wave (CW) transponders, communication transmitters and receivers, command control/flight termination, receivers/decoders, pseudo random noise (PRN) ranging systems, and the Global Positioning System.

  10. Aerodynamic heating of ballistic missile including the effects of gravity

    Indian Academy of Sciences (India)

    S N Maitra

    2000-10-01

    The aerodynamic heating of a ballistic missile due to only convection is analysed taking into consideration the effects of gravity. The amount of heat transferred to the wetted area and to the nose region has been separately determined, unlike A Miele's treatise without consideration of gravity. The peak heating ratesto the wetted area and to the nose of the missile are also investigated. Finally four numerical examples are cited to estimate the errors, in heat transfers and heating ratesto both wetted area and nose region of the missile, arising out of neglecting the gravitational forces.

  11. Understanding Taxi Drivers’ Multi-day Cruising Patterns

    Directory of Open Access Journals (Sweden)

    Fang Zong

    2015-12-01

    Full Text Available This study investigates taxi drivers’ multi-day cruising behaviours with GPS data collected in Shenzhen, China. By calculating the inter-daily variability of taxi drivers’ cruising behaviours, the multi-day cruising patterns are investigated. The impacts of learning feature and habitual feature on multi-day cruising behaviours are determined. The results prove that there is variability among taxis’ day-to-day cruising behaviours, and the day-of-week pattern is that taxi drivers tend to cruise a larger area on Friday, and a rather focused area on Monday. The findings also indicate that the impacts of learning feature and habitual feature are more obvious between weekend days than among weekdays. Moreover, learning feature between two sequent weeks is found to be greater than that within one week, while the habitual feature shows recession over time. By revealing taxis' day-to-day cruising pattern and the factors influencing it, the study results provide us with crucial information in predicting taxis' multi-day cruising locations, which can be applied to simulate taxis' multi-day cruising behaviour as well as to determine the traffic volume derived from taxis' cruising behaviour. This can help us in planning of transportation facilities, such as stop stations or parking lots for taxis. Moreover, the findings can be also employed in predicting taxis' adjustments of multi-day cruising locations under the impact of traffic management strategies.

  12. Simulation of changes in temperature and pressure fields during high speed projectiles forming by explosion

    Directory of Open Access Journals (Sweden)

    Marković Miloš D.

    2016-01-01

    Full Text Available The Research in this paper considered the temperatures fields as the consequently influenced effects appeared by plastic deformation, in the explosively forming process aimed to design Explosively Formed Projectiles (henceforth EFP. As the special payloads of the missiles, used projectiles are packaged as the metal liners, joined with explosive charges, to design explosive propulsion effect. Their final form and velocity during shaping depend on distributed temperatures in explosively driven plastic deformation process. Developed simulation model consider forming process without metal cover of explosive charge, in aim to discover liner’s dynamical correlations of effective plastic strains and temperatures in the unconstrained detonation environment made by payload construction. The temperature fields of the liner’s copper material are considered in time, as the consequence of strain/stress displacements driven by explosion environmental thermodynamically fields of pressures and temperatures. Achieved final velocities and mass loses as the expected EFP performances are estimated regarding their dynamical shaping and thermal gradients behavior vs. effective plastic strains. Performances and parameters are presented vs. process time, numerically simulated by the Autodyne software package. [Projekat Ministarstva nauke Republike Srbije, br. III-47029

  13. Vulnerability of a partially flooded PWR reactor cavity to a steam explosion

    Energy Technology Data Exchange (ETDEWEB)

    Cizelj, Leon [' Jozef Stefan' Institute Jamova 39, SI 1000 Ljubljana (Slovenia)]. E-mail: leon.cizelj@ijs.si; Koncar, Bostjan [' Jozef Stefan' Institute Jamova 39, SI 1000 Ljubljana (Slovenia); Leskovar, Matjaz [' Jozef Stefan' Institute Jamova 39, SI 1000 Ljubljana (Slovenia)

    2006-08-15

    When the hot molten core comes into contact with the water in the reactor cavity a steam explosion may occur. A steam explosion is a fuel coolant interaction process where the heat transfer from the melt to water is so intense and rapid that the timescale for heat transfer is shorter than the timescale for pressure relief. This can lead to the formation of shock waves and later, during the expansion of the water vapour, to production of missiles that may endanger surrounding structures. The purpose of the performed analysis is to provide an estimation of the expected pressure loadings on the typical PWR cavity structures during a steam explosion, and to make an assessment of the vulnerabilities of the typical PWR cavity structures to steam explosions. To achieve this, the fit-for-purpose steam explosion model is proposed, followed by comprehensive and reasonably conservative analyses of two typical ex-vessel steam explosion cases differing in the steam explosion energy conversion ratio. In particular, the vulnerability of the surrounding reinforced concrete walls to damage has been sought in both cases.

  14. Regional Joint-Integrated Air and Missile Defense (RF-IAMD): An Operational Level Integrated Air and Missile Defense (IAMD) Command and Control (C2) Organization

    Science.gov (United States)

    2015-05-15

    the Naval Air and Missile Defense Command (NAMDC). NAMDC then began training field grade officers through a Weapons and Tactics Instructor ( WTI ...49 Integrated Air and Missile Defense (IAMD) Weapons and Tactics Instructor ( WTI ), Naval Air and Missile...and Missile Defense (IAMD) Weapons and Tactics Instructor ( WTI ). Accessed April 28, 2015. http://namdc.ahf.nmci.navy.mil/site%20pages/wti.htm

  15. Dynamic Simulation for Missile Erection System

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    In order to study the dynamic characteristics of the missile erection system, it can be considered as a rigid-flexible coupling multi-body system. Firstly, the actual system is abstracted as an equal and simplified one and then the forces applied to it are analyzed. Secondly, the rigid-flexible coupling dynamic simulation for erection system is accomplished by use of the system simulation software, for example Pro/E, ADAMS, ANSYS, MATLAB/Simulink, etc. Finally, having the aid of simulation results, the kinetic and dynamic characteristics of the flexible bodies in erection system are analyzed.The simulation considering the erection system as a rigid-flexible coupling system can provide valuable results to the research of its kinetic, dynamic and vibrational characteristics.

  16. The Study of Tactical Missile's Airframe Digital Optimization Design

    Institute of Scientific and Technical Information of China (English)

    LUO Zhiqing; QIAN Airong; LI Xuefeng; GAO Lin; LEI Jian

    2006-01-01

    Digital design and optimal are very important in modern design. The traditional design methods and procedure are not fit for the modern missile weapons research and development. Digital design methods and optimal ideas were employed to deal with this problem. The disadvantages of the traditional missile's airframe design procedure and the advantages of the digital design methods were discussed. A new concept of design process reengineering (DPR) was put forward. An integrated missile airframe digital design platform and the digital design procedure, which integrated the optimization ideas and methods, were developed. Case study showed that the design platform and the design procedure could improve the efficiency and quality of missile's airframe design, and get the more reasonable and optimal results.

  17. Vortex development on slender missiles at supersonic speeds

    Science.gov (United States)

    Allen, J. M.; Dillenius, M. F. E.

    1979-01-01

    A theoretical and experimental effort has been made to develop a vortex-prediction capability on circular and noncircular missiles at supersonic speeds. Predicted vortex patterns are computed by two linear-theory computer codes. One calculates the strengths and initial locations of the vortices, and the other calculates their trajectories. A short color motion picture has been produced from the calculations to illustrate the predicted vortex patterns on a typical missile. Experimental vapor-screen photographs are presented to show the longitudinal development of the vortices on a fin-control missile. Comparisons are made between these data and the predicted vortices to assess the accuracy of the theory. The theory appears to be fairly accurate in predicting the number, locations, and relative strengths of individual vortices which develop over the missile, but cannot predict vortex sheets or diffuse vorticity whenever they occur.

  18. Revolution in military affairs, missile defence and weapons in space ...

    African Journals Online (AJOL)

    Revolution in military affairs, missile defence and weapons in space: the US ... 1991 Gulf War that captured the imagination of military planners and policy makers, ... Firstly, very few countries have the financial and technological capability to ...

  19. Analysis of Nonlinear Missile Guidance Systems Through Linear Adjoint Method

    Directory of Open Access Journals (Sweden)

    Khaled Gamal Eltohamy

    2015-12-01

    Full Text Available In this paper, a linear simulation algorithm, the adjoint method, is modified and employed as an efficient tool for analyzing the contributions of system parameters to the miss - distance of a nonlinear time-varying missile guidance system model. As an example for the application of the linear adjoint method, the effect of missile flight time on the miss - distance is studied. Since the missile model is highly nonlinear and a time-varying linearized model is required to apply the adjoint method, a new technique that utilizes the time-reversed linearized coefficients of the missile as a replacement for the time-varying describing functions is applied and proven to be successful. It is found that, when compared with Monte Carlo generated results, simulation results of this linear adjoint technique provide acceptable accuracy and can be produced with much less effort.

  20. 77 FR 51970 - Renewal of Missile Defense Advisory Committee

    Science.gov (United States)

    2012-08-28

    ... configurations for the Ballistic Missile Defense System. The Committee shall be composed of not more than eleven... shall be comprised of no more than seven members. The primary focus of the Subcommittee is to conduct...

  1. Analysis and improvement of missile three-loop autopilots

    Institute of Scientific and Technical Information of China (English)

    Lin Defu; Fan Junfang; Qi Zaikang; Mou Yu

    2009-01-01

    characteristics from a two-loop autopilot with PI compensator.Both the two-loop and three-loop topologies can stabilize a static unstable missile.However,the finite actuator resource is the crucial factor dominating autopilot function.

  2. Design and Manufacturing Process for a Ballistic Missile

    Directory of Open Access Journals (Sweden)

    Zaharia Sebastian Marian

    2016-12-01

    Full Text Available Designing a ballistic missile flight depends on the mission and the stress to which the missile is subject. Missile’s requests are determined by: the organization of components; flight regime type, engine configuration and aerodynamic performance of the rocket flight. In this paper has been developed a ballistic missile with a smooth fuselage type, 10 control surfaces, 8 directional surfaces for cornering execution, 2 for maneuvers of execution to change the angle of incidence and 4 stabilizers direction. Through the technology of gluing and clamping of the shell and the use of titanium components, mass of ballistic missile presented a significant decrease in weight and a structure with high strength.

  3. Density Models for Velocity Analysis of Jet Impinged CEDM Missile

    Energy Technology Data Exchange (ETDEWEB)

    Jo, Won Ho; Kang, Tae Kyo; Cho, Yeon Ho; Chang, Sang Gyoon; Lee, Dae Hee [KEPCO EnC, Daejeon (Korea, Republic of)

    2015-05-15

    A control element drive mechanism (CEDM) can be a potential missile in the reactor head area during one of the postulated accidents. The CEDM is propelled by the high speed water jet discharged from a broken upper head nozzle. The jet expansion models to predict the missile velocity have been investigated by Kang et al. The previous work of Kang et al. showed a continuous increase in missile velocity as the CEDM missile travels. But it is not natural in that two phase flow from the nozzle break exit tends to disperse and the thrust force on the missile decreases along the distance of the travel. The jet flow also interacts with the air surrounding itself. Therefore, the density change has to be included in the estimation of the missile velocity. In this paper, two density change models of the water jet are introduced for the jet expansion models along with the distance from the nozzle break location. The first one is the direct approximation model. Two density approximation models are introduced to predict the CEDM missile velocity. For each model, the effects of the expanded jet area were included as the area ratio to the exit nozzle area. In direct approximation model, the results have showed rapid decrease in both density and missile velocity. In pressure approach model, the density change is assumed perfectly proportional to the pressure change, and the results showed relatively smooth change in both density and missile velocity comparing to the direct approximation model. Using the model developed by Kang et al.., the maximum missile velocity is about 4 times greater comparing to the pressure approach model since the density is constant as the jet density at the nozzle exit in their model. Pressure approach model has benefits in that this model adopted neither curve fitting nor extrapolation unlike the direct approximation model, and included the effects of density change which are not considered in the model developed by Kang et al. So, this model is

  4. Aging of civil explosives (Poster)

    NARCIS (Netherlands)

    Krabbendam-La Haye, E.L.M.; Klerk, W.P.C. de; Hoen, C. 't; Krämer, R.E.

    2014-01-01

    For the Dutch MoD and police, TNO composed sets with different kinds of civil explosives to train their detection dogs. The manufacturer of these explosives guarantees several years of stability of these explosives. These sets of explosives are used under different conditions, like temperature and

  5. Application of Computer Graphics to Performance Studies of Missile Warheads

    Directory of Open Access Journals (Sweden)

    K. Rama Rao

    1991-01-01

    Full Text Available Intercept geometry of target aircraft and missiles play an important role in determining the effectiveness of the warhead. Factors such as fragment spatial distribution profile, damage capabilities, target and missile characteristics have been considered and visualised through computer graphics and optimum intercept intercept angles have been arrived. Computer graphics has proved to be an important tool to enhance perception and conceptual design capabilities in the design environment.

  6. Patriot Advanced Capability-3 Missile Segment Enhancement (PAC-3 MSE)

    Science.gov (United States)

    2015-12-01

    sustainment reliability will exceed 20 hours MTBCMF. Will be demonstrated during Post Deployment Build -8 and Radar Digital Processor- Configuration...Technology and Logistics) PAC-3 MSE December 2015 SAR March 21, 2016 09:42:58 UNCLASSIFIED 4 COL John M. Eggert Lower Tier Project Office Building 5250...PAC-3 MSE) is a high velocity, hit-to-kill, surface -to-air missile capable of intercepting and destroying Tactical Ballistic Missiles (TBM) and air

  7. Information Management Principles Applied to the Ballistic Missile Defense System

    Science.gov (United States)

    2007-03-01

    of a BMDS. From this, the Army produced the Nike- Zeus system comprised of four radars, the Zeus missile, and a computer fire control system (General...made the Nike- Zeus our first National Missile Defense (NMD) system named Sentinel. The architecture was to cover 14 locations, 10 of which were...fostered the database system and representation of data in a hierarchy (Galliers & Leidner, 2003). Soon the limits of hierarchies were identified and

  8. 2014 Assessment of the Ballistic Missile Defense System (BMDS)

    Science.gov (United States)

    2015-03-23

    and necessary training aids and devices are not currently available and are not scheduled to become available for several years. Analyses of data...and Evaluation ( IOT &E) flight tests for the Aegis BMD 4.0 system and SM-3 Block IB missile. Outcome. INTERCEPT. The ship detected, tracked...missiles in a raid scenario. FTX-18 was the last of the three IOT &E test missions. Outcome. THREE SIMULATED INTERCEPTS. The ship detected, tracked

  9. Missile Defense Acquisition: Failure Is Not An Option

    Science.gov (United States)

    2016-01-26

    missile over Japan into the sea.1With the nation already possessing weapons of mass destruction (WMD), the test launch signaled their intention to...Korea stunned the world in 1998 with the launch of a Taepo Dong-1 ballistic missile over Japan into the sea.4With the nation already possessing nuclear...acquisition agility. MDA’s BMDS acquisition strategy must be timely, flexible, and agile or risk irrelevance. BMDS Layered Architecture Since the NMD

  10. Parametric Explosion Spectral Model

    Energy Technology Data Exchange (ETDEWEB)

    Ford, S R; Walter, W R

    2012-01-19

    Small underground nuclear explosions need to be confidently detected, identified, and characterized in regions of the world where they have never before occurred. We develop a parametric model of the nuclear explosion seismic source spectrum derived from regional phases that is compatible with earthquake-based geometrical spreading and attenuation. Earthquake spectra are fit with a generalized version of the Brune spectrum, which is a three-parameter model that describes the long-period level, corner-frequency, and spectral slope at high-frequencies. Explosion spectra can be fit with similar spectral models whose parameters are then correlated with near-source geology and containment conditions. We observe a correlation of high gas-porosity (low-strength) with increased spectral slope. The relationship between the parametric equations and the geologic and containment conditions will assist in our physical understanding of the nuclear explosion source.

  11. Explosive Components Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The 98,000 square foot Explosive Components Facility (ECF) is a state-of-the-art facility that provides a full-range of chemical, material, and performance analysis...

  12. Intermittent Explosive Disorder

    Directory of Open Access Journals (Sweden)

    Lut Tamam

    2011-09-01

    Full Text Available Intermittent explosive disorder is an impulse control disorder characterized by the occurrence of discrete episodes of failure to resist aggressive impulses that result in violent assault or destruction of property. Though the prevalence intermittent explosive disorder has been reported to be relatively rare in frontier studies on the field, it is now common opinion that intermittent explosive disorder is far more common than previously thought especially in clinical psychiatry settings. Etiological studies displayed the role of both psychosocial factors like childhood traumas and biological factors like dysfunctional neurotransmitter systems and genetics. In differential diagnosis of the disorder, disorders involving agression as a symptom such as alcohol and drug intoxication, antisocial and borderline personality disorders, personality changes due to general medical conditions and behavioral disorder should be considered. A combination of pharmacological and psychotherapeutic approaches are suggested in the treatment of the disorder. This article briefly reviews the historical background, diagnostic criteria, epidemiology, etiology and treatment of intermittent explosive disorder.

  13. 75 FR 5545 - Explosives

    Science.gov (United States)

    2010-02-03

    ....gov . This Federal Register notice, as well as news releases and other relevant information, are also..., Tobacco, Firearms and Explosives (ATF) regulates the import, manufacture, distribution, and storage of...

  14. Ammonium nitrate explosion hazards

    Directory of Open Access Journals (Sweden)

    Negovanović Milanka

    2015-01-01

    Full Text Available Ammonium nitrate (AN primarily is used as a fertilizer but it is also very important compound in the production of industrial explosives. The application of ammonium nitrate in the production of industrial explosives was related with the early era of Nobel dynamite and widely increased with the appearance of blasting agents such as ANFO and Slurry, in the middle of the last Century. Throughout the world millions of tons of ammonium nitrate are produced annually and handled without incident. Although ammonium nitrate generally is used safely, accidental explosions involving AN have high impact resulting in loss of lives and destruction of property. The paper presents the basic properties of ammonium nitrate as well as hazards in handling of ammonium nitrate in order to prevent accidents. Several accidents with explosions of ammonium nitrate resulted in catastrophic consequences are listed in the paper as examples of non-compliance with prescribed procedures.

  15. Explosion suppression system

    Science.gov (United States)

    Sapko, Michael J.; Cortese, Robert A.

    1992-01-01

    An explosion suppression system and triggering apparatus therefor are provided for quenching gas and dust explosions. An electrically actuated suppression mechanism which dispenses an extinguishing agent into the path ahead of the propagating flame is actuated by a triggering device which is light powered. This triggering device is located upstream of the propagating flame and converts light from the flame to an electrical actuation signal. A pressure arming device electrically connects the triggering device to the suppression device only when the explosion is sensed by a further characteristic thereof beside the flame such as the pioneer pressure wave. The light powered triggering device includes a solar panel which is disposed in the path of the explosion and oriented between horizontally downward and vertical. Testing mechanisms are also preferably provided to test the operation of the solar panel and detonator as well as the pressure arming mechanism.

  16. Shock waves & explosions

    CERN Document Server

    Sachdev, PL

    2004-01-01

    Understanding the causes and effects of explosions is important to experts in a broad range of disciplines, including the military, industrial and environmental research, aeronautic engineering, and applied mathematics. Offering an introductory review of historic research, Shock Waves and Explosions brings analytic and computational methods to a wide audience in a clear and thorough way. Beginning with an overview of the research on combustion and gas dynamics in the 1970s and 1980s, the author brings you up to date by covering modeling techniques and asymptotic and perturbative methods and ending with a chapter on computational methods.Most of the book deals with the mathematical analysis of explosions, but computational results are also included wherever they are available. Historical perspectives are provided on the advent of nonlinear science, as well as on the mathematical study of the blast wave phenomenon, both when visualized as a point explosion and when simulated as the expansion of a high-pressure ...

  17. Explosive Welding with Nitroguanidine.

    Science.gov (United States)

    Sadwin, L D

    1964-03-13

    By using the explosive nitroguanidine, continuous welds can be made between similar and dissimilar metals. Since low detonation pressures are attainable, pressure transfer media are not required between the explosive and the metal surface. The need for either a space or an angle between the metals is eliminated, and very low atmospheric pressures are not required. Successful welds have been made between tantalum and 4140 steel, 3003H14 aluminum and 4140 steel, and 304 stainless steel and 3003H14 aluminum.

  18. Overview of Explosive Initiators

    Science.gov (United States)

    2015-11-01

    important characteristics of an effective primary explosive is an extremely swift deflagration to detonation transition, meaning that once the... Taylor , G. W. C., Napier, S. E., "Preparation of Explosive Substances Containing Carboxymethyl Cellulose," U.S. Patent 3,291,664, 1966. 8 Perich, A...Rinkenbach, W. H., "Study of the Action of Lead Azide on Copper," U.S. Army ARDEC, Picatinny Arsenal, NJ, Technical Report No. 1152, 1942. 11 Taylor , G. W

  19. Handbook of HE (High Explosives) Explosive Effects

    Science.gov (United States)

    1986-04-11

    uPcup SI.B iPip P 3 [ xpI os i or ,tf fects, Lx’i Osions In Air,6 19 6T~lT’ Explosions, Airblast - 19 ABSTRAC.T ’Continuje on "uri~ee it neczessary and...AIR FORCE INSTITUTE OF TECHNOLOGY/EN ATTN: MAT 0323 ATTN- LIURARY/AFIT/LDEE NAVAL OCEAN SYSTEMS CENTER AIR FORCE LOGISTICS COMMAND ATTN: CODE 825

  20. Determinants of cruise passengers’ expenditures in the port of call

    Directory of Open Access Journals (Sweden)

    Maršenka Marksel

    2016-12-01

    Full Text Available Cruise tourism generates different types of cruise consumption and related indirect, direct and induced expenditure effects, in homeports as well as in ports of call. Cruise passengers’ expenditures produce positive economic effects for destinations, from increasing the incomes and employment, to tax incomes, duties, etc. Therefore, it is no doubt that cruise stakeholders and local economies can benefit from increased cruise passenger consumption. To stimulate higher consumption and passengers’ satisfaction, it is necessary to design the supportive policy framework and build appropriate quality of products and services. Identifying influential variables of cruise passengers’ expenditures in this sense enables the design of appropriate policies and measures. In the current research, based on a survey of 357 cruise passengers, several variables included in a new theoretical model of the expenditures determinants, such as gender, nationality, frequency of cruising and frequency of visits, were found to be statistically significantly associated with cruise passengers’ expenditures. Several conclusions and suggestions to stimulate cruise passenger expenditures based on research findings are provided.

  1. Worry and its correlates onboard cruise ships.

    Science.gov (United States)

    Wolff, Katharina; Larsen, Svein; Marnburg, Einar; Øgaard, Torvald

    2013-01-01

    The present study examined job-specific worry, as well as possible predictors of such worry, namely job-specific self-efficacy and supervisor dispositionism. 133 non-supervising crew members at different departments onboard upmarket cruise ships filled in a questionnaire during one of their journeys. Findings show that employees report moderate amounts of job-specific worry and the galley crew reports significantly greater amounts of worry than the other departments. Results also indicate that cruise ship crews worry somewhat more than workers in the land based service sector. Furthermore it was found that supervisor dispositionism, i.e. supervisors with fixed mindsets, was related to greater amounts of worry among the crew. Surprisingly, job-specific self-efficacy was unrelated to job-specific worry.

  2. [Hemodialysis on a cruise ship: our logbook].

    Science.gov (United States)

    Valiño Pazos, Cristina; Sáez Rodríguez, Loreto; Meizoso Ameneiro, Ana

    2013-05-01

    After a diet and hydric restriction, travelling is one of the most limiting and worrying activities for patients under chronic renal replacement therapy. The vital dependency on the hemodialysis machine makes travelling an extremely difficult experience. In order to prove the legitimacy of our patients' fears, we embarked on to a cruise-liner with them. This confirmed their limitations when travelling thanks to the reliable data input. This study describes our personal and professional experience as nurses, specialized in hemodialysis, embarking onto a cruise-liner with twelve patients suffering from ESRD. Our goal is to share that experience with professional nurses as well as patients who seek information in regards to this type of trip with a specialized nurse. A summary of this work was presented as a communication oral in the XXXVI Congress of the Spanish Society of Nephrology Nursing.

  3. Cruise Missile Engine Program Contract Data Requirements List Sequence Number 95. Qualification Test Report. Volume XXXIX. Vibration and Mission Simulation Testing on Engine 828. XF-107-WR-400 Cruise Missile Engine,

    Science.gov (United States)

    1981-06-01

    453 4 Max. Flow .5.1 1 4 161 Oecal S& 64 start Fla. . Ilonae External leakege after C1, Sensori .z Nane Static Leakaqe P7 /5/15 ON TAPI E-8 All MALdn...2 S.Z 14-. -l_ S. Z.11500 0 60(60-1851 500 515 5.3. At. el 170’f 8061-056 OnY) 1438 1-448 1; 45a ~~:1 462____ 5.4 Acca ? -6S5F 5.4.116400 40 .4595...caz. .200 to -10 ad record 2.0" Leek Checks 0 . 1 1 2 02 k Z 4 4 E Z GCS O ) . 5. s P7 t o t l a.. 120Setting -212,PS I nas;, ,3,, rd .Z a .620 " e

  4. 49 CFR 172.522 - EXPLOSIVES 1.1, EXPLOSIVES 1.2 and EXPLOSIVES 1.3 placards.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false EXPLOSIVES 1.1, EXPLOSIVES 1.2 and EXPLOSIVES 1.3... INFORMATION, TRAINING REQUIREMENTS, AND SECURITY PLANS Placarding § 172.522 EXPLOSIVES 1.1, EXPLOSIVES 1.2 and EXPLOSIVES 1.3 placards. (a) Except for size and color, the EXPLOSIVES 1.1, EXPLOSIVES 1.2 and EXPLOSIVES 1.3...

  5. The expectation of applying IR guidance in medium range air-to-air missiles

    Science.gov (United States)

    Li, Lijuan; Liu, Ke

    2016-10-01

    IR guidance has been widely used in near range dogfight air-to-air missiles while radar guidance is dominant in medium and long range air-to-air missiles. With the development of stealth airplanes and advanced electronic countermeasures, radar missiles have met with great challenges. In this article, the advantages and potential problems of applying IR guidance in medium range air-to-air missiles are analyzed. Approaches are put forward to solve the key technologies including depressing aerodynamic heating, increasing missiles' sensitivity and acquiring target after launch. IR medium range air-to-air missiles are predicted to play important role in modern battle field.

  6. MAINTAINING VEHICLE SPEED USING A MECHANICAL CRUISE CONTROL

    Directory of Open Access Journals (Sweden)

    Peter GIROVSKÝ

    2017-06-01

    Full Text Available In this article we would like to present cruise control realization. This cruise control is presented as mechanical device for vehicle speed maintenance and has been proposed as a low cost solution. Principle of function in mechanical cruise control is based on a position control of throttle. For the right action of mechanical cruise control it was need to solve some particular tasks related with speed sensing, construct of device for control of throttle position and design of control system of whole mechanical cruise control. Information about car velocity we have gained using Hall sensor attached on a magnetic ring of car tachometer. For control of the throttle was used a small servo drive and as the control unit was used Arduino. The designed solution of mechanical cruise control have been realized for car Škoda Felicia.

  7. Economic Impact of Cruise Ship Passengers in Bar Harbor, Maine

    OpenAIRE

    Gabe, Todd; Lynch, Colleen; McConnon, James; Allen, Thomas

    2003-01-01

    This report examines the economic impact of cruise ship passengers in Bar Harbor, Maine. In 2002, 64 cruise ships docked in Bar Harbor carrying about 120,000 passengers and crewmembers. The analysis presented in the report is based on 1,080 passenger surveys conducted between August and October of 2002. Economic impact figures are based on a total of 97,190 passengers, which is the capacity of the 64 cruise ships that were scheduled to visit Bar Harbor in 2002.

  8. SEATIDE Analysis Process. Volume IIIB. Cruise Missile - Concept Generation and Screening Model (CM-CGSM). Appendices A - B.

    Science.gov (United States)

    1974-01-01

    s t ics of Var ious Wal leye Components and Confi gurations in the Subson ic , T ranson ic , and Supersonic Flight Reg ions ” , U. S. Naval...f t ) 100 , 000 . 0 5 R range (f t ) 1 , 000 , 000 . 0 6 W mass ( Ibm) 1,000 . 0 7 “tB ideal veloci ty ( f t / s e c ) 1, 000. 0 V 3 . 2 NEWTON ...RAPHSON PROCEDURE ~ Newton -Raphson procedure is used in several instances to solve a non- l inear equation fo r the independent variable

  9. Prelaunch Survivability of Ground Launched Cruise Missile (GLCM). Volume 3. SAVAGE Code Version 1.0 User’s Guide

    Science.gov (United States)

    1980-06-20

    000 kilotons terajoules 4.183 kip (1000 lbf) newton (N) 4.448 222 X E +3 kip /inch2 (ksi) kilo pascal (kPa) 6.894 757 X E +3 ktap newton-second/m 2 (N-s...ATTN: Deputy Director, J. Nocita Decision-Science Applications, Inc U.S. Arms Control & Disarmament Agcy ATTN: Pugh ATTN: C. Thorn ATTN: Galiano

  10. Explosive welding of pipes

    Energy Technology Data Exchange (ETDEWEB)

    Drennov, O.; Burtseva, O.; Kitin, A. [Russian Federal Nuclear Center, Sarov (Russian Federation)

    2006-08-15

    Arrangement of pipelines for the transportation of oil and gas is a complicated problem. In this paper it is suggested to use the explosive welding method to weld pipes together. This method is rather new. This method can be advantageous (saving material and physical resources) comparing to its static analogs (electron-beam welding, argon-arc welding, plasma welding, gas welding, etc.), in particular, in hard-to-reach areas due to their geographic and climatic conditions. We suggest to perform explosive welding according to the following scheme: the ends of the 2 pipes are connected, the external surfaces are kept at a similar level. A cylindrical steel layer of diameter larger than the pipe diameter is set around the pipe joint and an explosive charge is placed on its external surface. The basic problem is the elimination of strains and reduction of pipe diameter in the area of the dynamic effect. The suggestion is to use water as filler: the volume of pipes in the area adjacent to the zone of explosive welding is totally filled with water. The principle of non-compressibility of liquid under quasi-dynamic loading is used. In one-dimensional gas dynamic and elastic-plastic calculations we determined non-deformed mass of water. Model experiments with pipes having radii R = 57 mm confirmed results of the calculations and the possibility in principle to weld pipes by explosion with use of water as filler.

  11. Surface explosion cavities

    CERN Document Server

    Benusiglio, Adrien; Clanet, Christophe

    2012-01-01

    We present a fluid dynamics video on cavities created by explosions of firecrackers at the water free surface. We use three types of firecrackers containing 1, 1.3 and 5 g of flash powder. The firecrackers are held with their center at the surface of water in a cubic meter pool. The movies are recorded from the side with a high-speed video camera. Without confinement the explosion produces an hemispherical cavity. Right after the explosion this cavity grows isotropically, the bottom then stops while the sides continue to expand. In the next phase the bottom of the cavity accelerates backwards to the surface. During this phase the convergence of the flow creates a central jet that rises above the free surface. In the last part of the video the explosion is confined in a vertical open tube made of glass and of centimetric diameter. The explosion creates a cylindrical cavity that develops towards the free end of the tube. Depending on the charge, the cavity can either stop inside the tube or at its exit, but nev...

  12. Explosion containment device

    Science.gov (United States)

    Benedick, William B.; Daniel, Charles J.

    1977-01-01

    The disclosure relates to an explosives storage container for absorbing and containing the blast, fragments and detonation products from a possible detonation of a contained explosive. The container comprises a layer of distended material having sufficient thickness to convert a portion of the kinetic energy of the explosion into thermal energy therein. A continuous wall of steel sufficiently thick to absorb most of the remaining kinetic energy by stretching and expanding, thereby reducing the momentum of detonation products and high velocity fragments, surrounds the layer of distended material. A crushable layer surrounds the continuous steel wall and accommodates the stretching and expanding thereof, transmitting a moderate load to the outer enclosure. These layers reduce the forces of the explosion and the momentum of the products thereof to zero. The outer enclosure comprises a continuous pressure wall enclosing all of the layers. In one embodiment, detonation of the contained explosive causes the outer enclosure to expand which indicates to a visual observer that a detonation has occurred.

  13. Cruise ship care: a proposed alternative to assisted living facilities.

    Science.gov (United States)

    Lindquist, Lee A; Golub, Robert M

    2004-11-01

    Options for elderly patients who can no longer remain independent are limited. Most choices involve assisted living facilities, 24-hour caregivers, or nursing homes. State and federal assistance for payment for individual care is limited, and seniors usually pay for most costs out of pocket. For those patients who have the means to afford assisted living centers or nursing homes, "cruise ship care" is proposed. Traveling alongside traditional tourists, groups of seniors would live on cruise ships for extended periods of time. Cruise ships are similar to assisted living centers in the amenities provided, costs per month, and many other areas. This article begins with an examination of the needs of seniors in assisted living facilities and then explores the feasibility of cruise ship care in answering those needs. Similarities between cruise ship travel and assisted living care, as well as the monetary costs of both options, are defined. A decision tree with selections for non-independent care for seniors was created including cruise ship care as an alternative. Using a Markov model over 20 years, a representative cost-effectiveness analysis was performed that showed that cruises were priced similarly to assisted living centers and were more efficacious. Proposed ways that cruise ship companies could further accommodate the needs of seniors interested in this option are also suggested. Implementation for cruise ship care on the individual basis is also presented. Ultimately, it is wished to introduce a feasible and possibly more desirable option to seniors who can no longer remain independent.

  14. Customer orientation of cruise destinations in Newfoundland and Labrador, Canada – exploring key issues for ports and the cruise lines

    OpenAIRE

    Hull, John S.; Losekoot, Erwin

    2011-01-01

    This paper evaluates the customer needs of cruise passengers in a context of industry ports in the province of Newfoundland and Labrador, Canada. The study was conducted for the Cruise Association of Newfoundland and Labrador (CANAL) providing primary data as part of their assessment for their Port Readiness Program. The results are generated from a survey of 34 key decision-makers working in 24 ports in the province. Another survey representing the views of 12 cruise lines operating in these...

  15. Cruise Report RV Poseidon cruise POS 295 [POS295], Lisbon 20.03.03 - Las Palmas 01.04.03

    OpenAIRE

    Christiansen, Bernd

    2003-01-01

    The cruise was a pilot cruise in the framework of the EU-project OASIS (Oceanic seamounts: an integrated study) which studies the functioning ecology of seamounts in the NE-Atlantic. The research programme during the cruise included measurements of the physical properties of the water column (temperature and salinity), the sampling of particulate organic matter, measurements of primary production and export fluxes and the sampling of zooplankton.

  16. Cruise Report RV Poseidon cruise POS 295 [POS295], Lisbon 20.03.03 - Las Palmas 01.04.03

    OpenAIRE

    Christiansen, Bernd

    2003-01-01

    The cruise was a pilot cruise in the framework of the EU-project OASIS (Oceanic seamounts: an integrated study) which studies the functioning ecology of seamounts in the NE-Atlantic. The research programme during the cruise included measurements of the physical properties of the water column (temperature and salinity), the sampling of particulate organic matter, measurements of primary production and export fluxes and the sampling of zooplankton.

  17. Novel high explosive compositions

    Science.gov (United States)

    Perry, D.D.; Fein, M.M.; Schoenfelder, C.W.

    1968-04-16

    This is a technique of preparing explosive compositions by the in-situ reaction of polynitroaliphatic compounds with one or more carboranes or carborane derivatives. One or more polynitroaliphatic reactants are combined with one or more carborane reactants in a suitable container and mixed to a homogeneous reaction mixture using a stream of inert gas or conventional mixing means. Ordinarily the container is a fissure, crack, or crevice in which the explosive is to be implanted. The ratio of reactants will determine not only the stoichiometry of the system, but will effect the quality and quantity of combustion products, the explosive force obtained as well as the impact sensitivity. The test values can shift with even relatively slight changes or modifications in the reaction conditions. Eighteen illustrative examples accompany the disclosure. (46 claims)

  18. A real explosion: the requirement of steam explosion pretreatment.

    Science.gov (United States)

    Yu, Zhengdao; Zhang, Bailiang; Yu, Fuqiang; Xu, Guizhuan; Song, Andong

    2012-10-01

    The severity factor is a common term used in steam explosion (SE) pretreatment that describes the combined effects of the temperature and duration of the pretreatment. However, it ignores the duration of the explosion process. This paper describes a new parameter, the explosion power density (EPD), which is independent of the severity factor. Furthermore, we present the adoption of a 5m(3) SE model for a catapult explosion mode, which completes the explosion within 0.0875 s. The explosion duration ratio of this model to a conventional model of the same volume is 1:123. The comparison between the two modes revealed a qualitative change by explosion speed, demonstrating that this real explosion satisfied the two requirements of consistency, and suggested a guiding mechanism for the design of SE devices.

  19. High-nitrogen explosives

    Energy Technology Data Exchange (ETDEWEB)

    Naud, D. (Darren); Hiskey, M. A. (Michael A.); Kramer, J. F. (John F.); Bishop, R. L. (Robert L.); Harry, H. H. (Herbert H.); Son, S. F. (Steven F.); Sullivan, G. K. (Gregg K.)

    2002-01-01

    The syntheses and characterization of various tetrazine and furazan compounds offer a different approach to explosives development. Traditional explosives - such as TNT or RDX - rely on the oxidation of the carbon and hydrogen atoms by the oxygen carrying nitro group to produce the explosive energy. High-nitrogen compounds rely instead on large positive heats of formation for that energy. Some of these high-nitrogen compounds have been shown to be less sensitive to initiation (e.g. by impact) when compared to traditional nitro-containing explosives of similar performances. Using the precursor, 3,6-bis-(3,5-dimethylpyrazol-1-yl)-s-tetrazine (BDT), several useful energetic compounds based on the s-tetrazine system have been synthesized and studied. The compound, 3,3{prime}-azobis(6-amino-s-tetrazine) or DAAT, detonates as a half inch rate stick despite having no oxygen in the molecule. Using perfluoroacetic acid, DAAT can be oxidized to give mixtures of N-oxide isomers (DAAT03.5) with an average oxygen content of about 3.5. This energetic mixture burns at extremely high rates and with low dependency on pressure. Another tetrazine compound of interest is 3,6-diguanidino-s-tetrazine(DGT) and its dinitrate and diperchlorate salts. DGT is easily synthesized by reacting BDT with guanidine in methanol. Using Caro's acid, DGT can be further oxidized to give 3,6-diguanidino-s-tetrazine-1,4-di-N-oxide (DGT-DO). Like DGT, the di-N-oxide can react with nitric acid or perchloric acid to give the dinitrate and the diperchlorate salts. The compounds, 4,4{prime}-diamino-3,3{prime}-azoxyfurazan (DAAF) and 4,4{prime}-diamino-3,3{prime}-azofurazan (DAAzF), may have important future roles in insensitive explosive applications. Neither DAAF nor DAAzF can be initiated by laboratory impact drop tests, yet both have in some aspects better explosive performances than 1,3,5-triamino-2,4,6-trinitrobenzene TATB - the standard of insensitive high explosives. The thermal stability of DAAz

  20. Cooled and uncooled infrared detectors for missile seekers

    Science.gov (United States)

    Fraenkel, Rami; Haski, Jacob; Mizrahi, Udi; Shkedy, Lior; Shtrichman, Itay; Pinsky, Ephi

    2014-06-01

    Electro-optical missile seekers pose exceptional requirements for infrared (IR) detectors. These requirements include: very short mission readiness (time-to-image), one-time and relatively short mission duration, extreme ambient conditions, high sensitivity, fast frame rate, and in some cases small size and cost. SCD is engaged in the development and production of IR detectors for missile seeker applications for many years. 0D, 1D and 2D InSb focal plane arrays (FPAs) are packaged in specially designed fast cool-down Dewars and integrated with Joule-Thomson (JT) coolers. These cooled MWIR detectors were integrated in numerous seekers of various missile types, for short and long range applications, and are combat proven. New technologies for the MWIR, such as epi-InSb and XBn-InAsSb, enable faster cool-down time and higher sensitivity for the next generation seekers. The uncooled micro-bolometer technology for IR detectors has advanced significantly over the last decade, and high resolution - high sensitivity FPAs are now available for different applications. Their much smaller size and cost with regard to the cooled detectors makes these uncooled LWIR detectors natural candidates for short and mid-range missile seekers. In this work we will present SCD's cooled and uncooled solutions for advanced electro-optical missile seekers.

  1. Missile launch detection electric field perturbation experiment. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Kane, R.J.; Rynne, T.M.

    1993-04-28

    The Lawrence Livermore National Laboratory and SARA Inc. participated in the ATMD missile launch activities that occurred at WSMR during January 1993. LLNL and SARA deployed sensors for monitoring of basic phenomena. An attempt was made to measure perturbations of the earth geo-potential during the launch of a Lance missile. The occurrence of the perturbation is expected from the conducting body of the missile and the exhaust plume. A set of voltage-probe antennas were used to monitor the local electric field perturbation from the launch at ranges of approximately 1 km. Examination of the data acquired during the launch period failed to show identifiable correlation of the field variations with the launch event. Three reasons are ascribed to this lack of event data: (1) The electric field potential variations have a limited spatial correlation length - the fields measured in one region have little correlation to measurements made at distances of a kilometer away. The potential variations are related to localized atmospheric disturbances and are generally unpredictable. A value for the spatial correlation length is also not known. (2) The conductivity of the plume and missile body are not adequate to produce a field perturbation of adequate magnitude. Phenomena related to the exhaust plume and missile may exist and be outside of the collection range of the equipment employed for these measurements. (3) The presence of 60 Hz power line noise was of sufficient magnitude to irreversibly contaminate measurements.

  2. Asia-Pacific Missile Defense Cooperation and the United States 2004-2005: A Mixed Bag

    Science.gov (United States)

    2005-02-01

    in cooperating with the United States on various missile defense -related programs. Such close friends and allies as South Korea and Taiwan have made...many local opponents of missile defense argue that the missile threat to Australia is quite low, particularly as North Korea does not yet possess any...2004 in cooperating with the United States. Overall, South Korea does not appear to regard the North Korean missile threat as very likely. Based on

  3. A Study of Age Demographics across the Aviation and Missile Materiel Enterprise

    Science.gov (United States)

    2016-03-31

    future Aviation and Missile ME may look like. The Defense Civilian Personnel Data System (DCPDS) Human Resource managers across the Aviation and...Missile ME use the Defense Civilian Personnel Data System (DCPDS) as the warehouse for storing employee information. Each of the five organizations...Aviation and Missile Life Cycle Management Command Public Affairs, 25 April 2016 AVIATION AND MISSILE MATERIEL ENTERPRISE DEMOGRAPHICS 2

  4. Improvement of Adaptive Cruise Control Performance

    Directory of Open Access Journals (Sweden)

    Nakagami Takashi

    2010-01-01

    Full Text Available This paper describes the Adaptive Cruise Control system (ACC, a system which reduces the driving burden on the driver. The ACC system primarily supports four driving modes on the road and controls the acceleration and deceleration of the vehicle in order to maintain a set speed or to avoid a crash. This paper proposes more accurate methods of detecting the preceding vehicle by radar while cornering, with consideration for the vehicle sideslip angle, and also of controlling the distance between vehicles. By making full use of the proposed identification logic for preceding vehicles and path estimation logic, an improvement in driving stability was achieved.

  5. Harmonic analysis of a cruise ship network

    Energy Technology Data Exchange (ETDEWEB)

    Guerin, P.; Miegeville, L. [GE44, France (France); Sahnouni, K. [Chantiers de l' Atlantique (France)

    2000-07-01

    The number and the power rating of equipment using power electronics have been increasing on board of the ships for many years. At present, the harmonic disturbance must be taken into account from the design stage in order to ensure the smooth running of the installation. This paper presents a harmonic analysis of the electrical distribution system of a cruise ship. The comparison between the evaluated and the real harmonic levels allows us to discuss about the interest and the limits of the estimates. (authors)

  6. Atypical myocardial infarction on a cruise ship.

    Science.gov (United States)

    Taylor, Christopher

    2015-01-01

    A previously asymptomatic 44-year-old male crewmember on a cruise ship experienced several brief episodes of acute chest pain within a short time frame. He was ultimately diagnosed with myocardial infarction; 5 h earlier he had been discharged from the ship's medical centre after almost 8 h of monitoring to rule-out infarction. Subsequent angiography ashore revealed a 99% occlusion of the right coronary artery. This case highlights the dangers of over-reliance on shipboard cardiac enzyme testing to clear a patient with chest pain.

  7. Application of explosive welding to heat exchangers

    Energy Technology Data Exchange (ETDEWEB)

    Arthur, G.

    1983-10-01

    The subject is discussed under the headings: advantages of explosive welding; principle of explosive welding; explosive welding of tubes; metallurgy of explosive welds (micrographs; microhardness); tubular heat exchangers; plugging; sleeving; retubing; construction of new heat exchangers; thermal sleeves.

  8. 76 FR 63541 - Design-Basis Hurricane and Hurricane Missiles for Nuclear Power Plants

    Science.gov (United States)

    2011-10-13

    ...-2010-0288] Design-Basis Hurricane and Hurricane Missiles for Nuclear Power Plants AGENCY: Nuclear... Hurricane Missiles for Nuclear Power Plants.'' This regulatory guide provides licensees and applicants with... hurricane and design-basis hurricane-generated missiles that a nuclear power plant should be designed...

  9. The analysis of a generic air-to-air missile simulation model

    Science.gov (United States)

    Kaplan, Joseph A.; Chappell, Alan R.; Mcmanus, John W.

    1994-01-01

    A generic missile model was developed to evaluate the benefits of using a dynamic missile fly-out simulation system versus a static missile launch envelope system for air-to-air combat simulation. This paper examines the performance of a launch envelope model and a missile fly-out model. The launch envelope model bases its probability of killing the target aircraft on the target aircraft's position at the launch time of the weapon. The benefits gained from a launch envelope model are the simplicity of implementation and the minimal computational overhead required. A missile fly-out model takes into account the physical characteristics of the missile as it simulates the guidance, propulsion, and movement of the missile. The missile's probability of kill is based on the missile miss distance (or the minimum distance between the missile and the target aircraft). The problems associated with this method of modeling are a larger computational overhead, the additional complexity required to determine the missile miss distance, and the additional complexity of determining the reason(s) the missile missed the target. This paper evaluates the two methods and compares the results of running each method on a comprehensive set of test conditions.

  10. Future Operational Scenario for Antitank Guided Missile Systems

    Directory of Open Access Journals (Sweden)

    A.P.J. Abdul Kalam

    1995-07-01

    Full Text Available Discusses latest type of explosive reactive armour (ERA and active armour for defeating ERA that contains a slab of relatively less sensitive explosive sandwiched between two metal plates and attached to the main armour to be protected.

  11. High performance infrared fast cooled detectors for missile applications

    Science.gov (United States)

    Reibel, Yann; Espuno, Laurent; Taalat, Rachid; Sultan, Ahmad; Cassaigne, Pierre; Matallah, Noura

    2016-05-01

    SOFRADIR was selected in the late 90's for the production of 320×256 MW detectors for major European missile programs. This experience has established our company as a key player in the field of missile programs. SOFRADIR has since developed a vast portfolio of lightweight, compact and high performance JT-based solutions for missiles. ALTAN is a 384x288 Mid Wave infrared detector with 15μm pixel pitch, and is offered in a miniature ultra-fast Joule- Thomson cooled Dewar. Since Sofradir offers both Indium Antimonide (InSb) and Mercury Cadmium Telluride technologies (MCT), we are able to deliver the detectors best suited to customers' needs. In this paper we are discussing different figures of merit for very compact and innovative JT-cooled detectors and are highlighting the challenges for infrared detection technologies.

  12. Flexible missile autopilot design studies with PC-MATLAB/386

    Science.gov (United States)

    Ruth, Michael J.

    1989-01-01

    Development of a responsive, high-bandwidth missile autopilot for airframes which have structural modes of unusually low frequency presents a challenging design task. Such systems are viable candidates for modern, state-space control design methods. The PC-MATLAB interactive software package provides an environment well-suited to the development of candidate linear control laws for flexible missile autopilots. The strengths of MATLAB include: (1) exceptionally high speed (MATLAB's version for 80386-based PC's offers benchmarks approaching minicomputer and mainframe performance); (2) ability to handle large design models of several hundred degrees of freedom, if necessary; and (3) broad extensibility through user-defined functions. To characterize MATLAB capabilities, a simplified design example is presented. This involves interactive definition of an observer-based state-space compensator for a flexible missile autopilot design task. MATLAB capabilities and limitations, in the context of this design task, are then summarized.

  13. The Information Explosion.

    Science.gov (United States)

    Kuhns, William

    Three facets of the media--events, myths, and sales pitches--constitute the most important lines of force taken by the information bombardment which all of us encounter and are influenced by every day. The focus of this book is on the changes created and hastened by this information explosion of the media bombardment: how we can live with them,…

  14. Conventional Weapons Underwater Explosions

    Science.gov (United States)

    1988-12-01

    te that the heat of detonation (the energy available per mass of explosive) is an increasing function of the aluminum content. As shown in Table 2...the heat of detonation of RDX is 6.15 MJ/kg; addition of 30 wt % Al increases this to 10.12 - a factor of 1.64. Fig. 12 indicates a bubble energy

  15. Explosives Safety Competency Study

    Science.gov (United States)

    2010-07-13

    Munitions Systems Journeyman CDC—AFSC 2W051 Combat Ammunition Planning and Production—AFCOMAC Munitions Systems Craftsman Course—AFSC 2W071 Combat...Ammunition Planning and Production—AFCOMAC Munitions Systems Craftsman Course—AFSC 2W071 Navy Basics of Naval Explosives Hazard Control—AMMO-18 b

  16. Explosions during galaxy formation

    Directory of Open Access Journals (Sweden)

    Hugo Martel

    2001-01-01

    Full Text Available As an idealized model of the e ects of energy release by supernovae during galaxy formation, we consider an explosion at the center of a halo which forms at the intersection of laments in the plane of a cosmological pancake by gravitational instability during pancake collapse. Such halos resemble the virialized objects found in N{body simulations in a CDM universe and, therefore, serve as a convenient, scale{free test{bed model for galaxy formation. ASPH=P3M simulations reveal that such explosions are anisotropic. The energy and metals are channeled into the low density regions, away from the pancake plane. The pancake remains essentially undisturbed, even if the explosion is strong enough to blow away all the gas lo- cated inside the halo at the onset of the explosion and reheat the IGM surrounding the pancake. Infall quickly replenishes this ejected gas and gradually restores the gas fraction as the halo mass continues to grow. Estimates of the collapse epoch and SN energy{release for galaxies of di erent mass in the CDM model can re- late these results to scale{dependent questions of blow{out and blow{away and their implication for early IGM heating and metal enrichment and the creation of dark{matter{dominated dwarf galaxies.

  17. Portable raman explosives detection

    Energy Technology Data Exchange (ETDEWEB)

    Moore, David Steven [Los Alamos National Laboratory; Scharff, Robert J [Los Alamos National Laboratory

    2008-01-01

    Recent advances in portable Raman instruments have dramatically increased their application to emergency response and forensics, as well as homeland defense. This paper reviews the relevant attributes and disadvantages of portable Raman spectroscopy, both essentially and instrumentally, to the task of explosives detection in the field.

  18. New explosive seam welding concepts

    Science.gov (United States)

    Bement, L. J.

    1973-01-01

    Recently developed techniques provide totally-confined linear explosive seam welding and produce scarf joint with linear explosive seam welding. Linear ribbon explosives are utilized in making narrow, continuous, airtight joints in variety of aluminum alloys, titanium, copper, brass, and stainless steel.

  19. Dissemination Protocols to Support Cooperative Adaptive Cruise Control (CACC) Merging

    NARCIS (Netherlands)

    Klein Wolterink, W.; Heijenk, Geert; Karagiannis, Georgios

    2011-01-01

    Cooperative adaptive cruise control (CACC) is a form of cruise control in which vehicles cooperatively control their speed using wireless communication. Previously we have implemented CACC using beaconing: the regular broadcasting of status information using 802.11p. Currently we are concerned with

  20. Governing cruise tourism at Bonaire: a networks and flows approach

    NARCIS (Netherlands)

    Bets, van L.K.J.; Lamers, M.A.J.; Tatenhove, van J.P.M.

    2016-01-01

    Conceptual approaches to thoroughly study governance of cruise tourism are lacking in the literature. Relying on Castells’ network society, we analyze how two interconnected flows of cruise ships and passengers are governed by a marine community of users and policy makers. Bonaire is used as a case

  1. Evaluation of Impact Force of Missile Filled with Fluid

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Hyuk-Kee [Hyundai, Yongin (Korea, Republic of); Kim, Seung-Eock [Sejong University, Seoul (Korea, Republic of)

    2016-10-15

    In this paper, the effect of the fluid on the impact force was evaluated using the commercial software LS-DYNA. In order to verify the proposed finite element (FE) models, the impact force and impulse of the missiles filled with the fluid (wet missile) were investigated, and the analysis results were compared with the force plate tests conducted by VTT laboratory in Finland. A parametric study was performed to evaluate the impulse as per the position filled with the fluid and the impact velocity. The impulses of the wet missiles obtained from the parametric study were compared with those calculated by the modified Riera function. The effect of the fluid on the impact force was evaluated in this study. Based on this study, the following conclusions have been obtained: (1) The impulse/momentum ratios of the wet missiles filled with fluid in the front part were larger than those filled with fluid in the middle part. The difference was 5.5%, 5.3%, 6.2%, 3.8%, 2.9% and 1.0% for the impact velocities of 100 m/s, 110 m/s, 120 m/s, 130 m/s, 140 m/s, and 150 m/s, respectively. (2) The impulse/momentum ratios of the wet missiles by the FE analysis was larger than those by the modified Riera function up to 23.1% and 20.8%, respectively, when the fluid was filled in the front and middle parts. The modified Riera function underestimated the impulses of the wet missiles.

  2. Wastewater Pollution from Cruise Ships in the Adriatic Sea

    Directory of Open Access Journals (Sweden)

    Tina Perić

    2016-08-01

    Full Text Available The global growth of cruise tourism has brought increasing concern for the pollution of the marine environment. Marine pollution from sanitary wastewater is a problem especially pronounced on large cruise ships where the number of people on board may exceed 8,000. To evaluate future marine pollution in any selected period of time it is necessary to know the movement of ships in the Adriatic Sea. This paper presents the problem of marine pollution by sanitary wastewater from cruise ships, wastewater treatment technology and a model of cruise ship traffic in the Adriatic Sea considering MARPOL Annex IV areas of limited wastewater discharge. Using the model, it is possible to know in advance the routes of the cruisers and retention time in certain geographic areas. The data obtained by this model can be used as input parameters for evaluation model of wastewater pollution or for evaluation of other types of pollution from cruise ships.

  3. Electric Loading Simulation System for Missile Wings and Rudders

    Institute of Scientific and Technical Information of China (English)

    QI Rong; LIN Hui; CHEN Ming

    2006-01-01

    The design and the realization of missile wings and rudders loading simulation system based on digital signal processor (DSP) TMS320LF2407 and direct torque control (DTC) servo driver ACS600 are discussed. The structure and opration principle for the system are presented. Speediness and elimination of superabundant torque are two key difficulties for electric loading simulation system. The method which can eliminate the superabundant torque is researched. Test results show the airflow resistance when missile wings and rudders are spreading can be rapidly simulated with high accuracy.

  4. A METHOD IN SYSTEM DESIGN OF EJECTING DEVICES OF MISSILES

    Institute of Scientific and Technical Information of China (English)

    DaiLongcheng; XuanYimin

    2002-01-01

    Anew method in system design of ejecting devices of missiles is first presented.Some important points are dis-cussed,which guid the research and development of new ejecting devices of missileg,amd provid the foundation flr thw design of mew ejecting device is provided.The system design includes the distribution of techmology specifica-tion,3-D solid modeling of ejecting devices of missiles im-ported from abroad,the design of pmeumatic device sys-tem,the design of ejecting mechanism system,the predic-tion of reliability and the experimental analysis,etc.

  5. Heat Transfer Between a Missile's Combustion Chamber and the Warhead

    Institute of Scientific and Technical Information of China (English)

    赵永涛; 张奇; 白春华; 闫华

    2003-01-01

    Under higher temperatures the charge within a warhead will be subjected to physical and chemical changes, which will influence the security of the warhead launching process. In this paper the problem is studied adopting finite difference method for the case of a rocket-powered missile. Temperature distribution tables are given through quadrature experiments, and the results fit the actual measured values very well. The results also show that to ensure the launching security of rocket-powered missiles having warhead charge critical temperature close to about 60 ℃, the designer can select appropriate heat insulation structural parameters.

  6. Robust control for snake maneuver design of missile

    Science.gov (United States)

    Kun, Ya; Chen, Xin; Li, Chuntao

    2017-01-01

    For the performance of missile with high Mach number and strongly nonlinear dynamics, this paper uses robust control to design maneuver controller. Robust servomechanism linear quadratic regulator (RSLQR) control is used to form the inner loop and proportional-plus-integral (PI) control is used to provide yawing tracking with no error. Contrast simulations under three types of deviation have been done to confirm robustness of the RSLQR-plus-PI control. Simulation results shows that RSLQR-plus-PI control would resist the disturbance and maintain the properties of the controller, guarantee the robustness and stability of missile more effectively than pure PI control.

  7. Consolidation of data base for Army generalized missile model

    Science.gov (United States)

    Klenke, D. J.; Hemsch, M. J.

    1980-01-01

    Data from plume interaction tests, nose mounted canard configuration tests, and high angle of attack tests on the Army Generalized Missile model are consolidated in a computer program which makes them readily accessible for plotting, listing, and evaluation. The program is written in FORTRAN and will run on an ordinary minicomputer. It has the capability of retrieving any coefficient from the existing DATAMAN tapes and displaying it in tabular or plotted form. Comparisons of data taken in several wind tunnels and of data with the predictions of Program MISSILE2 are also presented.

  8. Design and Implementation of One Missile Visual Simulation System Based on OpenGL

    Institute of Scientific and Technical Information of China (English)

    GAO Ying; ZHANG Pu-zhao; PENG Yu-xin; HUANG Jian-guo

    2007-01-01

    The implementation of a missile's visual simulation system is explained that is developed with OpenGL(open graphic library) and the flight path and flight carriage in different stages of the missile are displayed. The establishment problems of the 3D scene are circumstantiated including the construction and redeployment of the model, creation of the virtual scene, setting of the multi-viewports and multi-windows etc. The missile's data driver, system flow, the modules and their mutual relations of the missile visual simulation system are discussed. The missile flight simulation results and effect of the scenes are given.

  9. Research on image fusion of missile team based on multi-agent cooperative blackboard model

    Science.gov (United States)

    Sen, Guo; Munan, Li

    The target of cooperative engagement of missile teams is to furthest improve hit rate of target according to communication and cooperation among missiles. In this paper the problems of image fusion between missile teams in complex combat environment was analyzed, after which an muti-agent blackboard cooperative model was presented and a public information platform of missile team is built according to this model. Through these, the fusion of images taken from muti-sensor of missiles can be realized and the hit rate of attacking target will be improved. At last, an simulation experiment were performed, and the feasibility of the method is proved by simulation experiment.

  10. Development of ammonium nitrate based explosives to optimize explosive properties and explosive welding parameters used during explosion cladding

    Science.gov (United States)

    Hurley, Christoph

    The ability to accurately measure and predict the velocity of explosively driven flyer plates has been a subject of significant work by the explosives community for some time. The majority of this work has focused on the use of high-energy, ideal explosives that are of interest for defense applications. Several attempts have been made to modify the experimental methods developed for these ideal explosives for use in testing low-energy, non-ideal explosive compounds (including industrially useful mixtures of ammonium nitrate, fuels, and additives) with varying degrees of success. The detonation properties of non-ideal explosives are difficult to measure precisely due to the effect of physical, environmental, and geometric factors on the detonation of these materials. The work presented in this document attempts to mitigate the variability inherent in measurements of non-ideal, ammonium nitrate-based explosives by performing testing using charge geometry similar to that used in the industrial process of explosion welding. A method to measure flyer plate velocity with optical high-speed imaging using commercially available equipment is described. Flyer plate velocity data from both experimental measurements and numerical modeling is presented. A new formula for predicting explosive energy based on the detonation velocity of an ammonium nitrate based explosive in a planar geometry is proposed and applied to a theoretical explosive cladding scenario.

  11. An analysis of the common missile and TOW 2B on the Stryker anti-tank guided missile platform, using the Janus simulation

    OpenAIRE

    2002-01-01

    Approved for public release; distribution in unlimited. The U.S. Army is beginning to field the first of six Stryker Brigade Combat Teams (SBCTs) and equip the organic Anti-Tank (AT) Company of the Brigade with the LAV III Anti-Tank Guided Missile (ATGM) Platform and the Tube-Launched, Optically-Tracked, Wire-Guided 2B (TOW 2B) missile system. A developmental effort is currently underway to replace the aging TOW 2B and Hellfire missile systems with a common missile that meets both ground...

  12. Characteristic Research on Evaporated Explosive Film

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    The evaporation source of evaporated explosive was designed and improved based on the inherent specialties of explosive. The compatibility of explosives and addition agent with evaporation vessels was analyzed. The influence of substrate temperature on explosive was analyzed, the control method of substrate temperature was suggested. The influences of evaporation rate on formation of explosive film and mixed explosive film were confirmed. Optimum evaporation rate for evaporation explosive and the better method for evaporating mixed explosive were presented. The necessary characteristics of the evaporated explosive film were obtained by the research of the differences between the evaporated explosive and other materials.

  13. Explosive bulk charge

    Energy Technology Data Exchange (ETDEWEB)

    Miller, Jacob Lee

    2015-04-21

    An explosive bulk charge, including: a first contact surface configured to be selectively disposed substantially adjacent to a structure or material; a second end surface configured to selectively receive a detonator; and a curvilinear side surface joining the first contact surface and the second end surface. The first contact surface, the second end surface, and the curvilinear side surface form a bi-truncated hemispherical structure. The first contact surface, the second end surface, and the curvilinear side surface are formed from an explosive material. Optionally, the first contact surface and the second end surface each have a substantially circular shape. Optionally, the first contact surface and the second end surface consist of planar structures that are aligned substantially parallel or slightly tilted with respect to one another. The curvilinear side surface has one of a smooth curved geometry, an elliptical geometry, and a parabolic geometry.

  14. Explosive welding underwater

    Energy Technology Data Exchange (ETDEWEB)

    Sim, T.; Allen, K.; Lowes, J.M.

    1980-06-11

    Explosive welding underwater is described. First and second underwater tubular members are assembled together so that the outer surface of the first tubular member and the inner surface of the second tubular member are spaced apart to form an annular cavity. The cavity is closed by seals accommodated in portions of the second tubular member, and is then cleaned and dried and filled with a gas at a pressure greater than the surrounding water pressure. The pressure in the cavity is reduced prior to detonating an explosive charge within the first tubular member to weld the members together. The second tubular member may include portions for receiving further seals so as to subdivide the cavity into a number of zones. The pressures in the zones then can be separately adjusted so as to be able to control the pressure difference a cross each seal. 9 claims.

  15. Explosion of Leidenfrost Droplets

    Science.gov (United States)

    Moreau, Florian; Colinet, Pierre; Dorbolo, Stephane

    2012-11-01

    When a drop is released on a plate heated above a given temperature, a thin layer of vapour can isolate the droplet so that it levitates over the plate. This effect was first reported by Leidenfrost in 1756. However, this fascinating subject remains an active field of research in both fundamental and applied researches. In this work, we focus on what happens when surfactant is added to the drop. The aim is to study the influence of a decrease of the surface tension. Surprisingly, as the droplet evaporates, suddenly it explodes. The evolution of the droplet and the resulting explosion are followed using a high speed camera. We show that when a critical concentration of surfactant is reached inside the drop, a shell of surfactant is formed leading to the explosion. The authors would like to thank FNRS for financial support. This work is financially supported by ODILE project (Contract No. FRFC 2.4623.11).

  16. Explosive Turbulent Magnetic Reconnection

    OpenAIRE

    Higashimori, Katsuaki; Yokoi, Nobumitsu; Hoshino, Masahiro

    2013-01-01

    We report simulation results for turbulent magnetic reconnection obtained using a newly developed Reynolds-averaged magnetohydrodynamics model. We find that the initial Harris current sheet develops in three ways, depending on the strength of turbulence: laminar reconnection, turbulent reconnection, and turbulent diffusion. The turbulent reconnection explosively converts the magnetic field energy into both kinetic and thermal energy of plasmas, and generates open fast reconnection jets. This ...

  17. CMC occasional papers : a missile stability regime for South Asia.

    Energy Technology Data Exchange (ETDEWEB)

    Khan, Feroz Hassan (Pakistan Army, Islamabad, Pakistan); Vannoni, Michael Geoffrey; Rajen, Gaurav (Gaia Research Consulting, Albuquerque, NM)

    2004-06-01

    India and Pakistan have created sizeable ballistic missile forces and are continuing to develop and enlarge them. These forces can be both stabilizing (e.g., providing a survivable force for deterrence) and destabilizing (e.g., creating strategic asymmetries). Missile forces will be a factor in bilateral relations for the foreseeable future, so restraint is necessary to curtail their destabilizing effects. Such restraint, however, must develop within an atmosphere of low trust. This report presents a set of political and operational options, both unilateral and bilateral, that decreases tensions, helps rebuild the bilateral relationship, and prepares the ground for future steps in structural arms control. Significant steps, which build on precedents and do not require extensive cooperation, are possible despite strained relations. The approach is made up of three distinct phases: (1) tension reduction measures, (2) confidence building measures, and (3) arms control agreements. The goal of the first phase is to initiate unilateral steps that are substantive and decrease tensions, establish missiles as a security topic for bilateral discussion, and set precedents for limited bilateral cooperation. The second phase would build confidence by expanding current bilateral security agreements, formalizing bilateral understandings, and beginning discussion of monitoring procedures. The third phase could include bilateral agreements limiting some characteristics of national missile forces including the cooperative incorporation of monitoring and verification.

  18. Joint Air-to-Surface Standoff Missile (JASSM)

    Science.gov (United States)

    2015-12-01

    Defense Program ICE - Independent Cost Estimate IOC - Initial Operational Capability Inc - Increment JROC - Joint Requirements Oversight Council $K...penetrating warhead with a robust blast fragmentation capability. The missiles employ an IIR seeker system to attack fixed, point targets requiring precision

  19. 22 CFR 121.16 - Missile Technology Control Regime Annex.

    Science.gov (United States)

    2010-04-01

    ... missile systems, see § 121.1, Cat. VIII (a), target drones and reconnaissance drones (see § 121.1, Cat... (see § 121.1, Cat. IV(h)); (b) Reentry vehicles (see § 121.1, Cat. IV(g)), and equipment designed or modified therefor, as follows, except as provided in Note (1) below for those designed for...

  20. Health Management and Service Life for Air Force Missiles

    Science.gov (United States)

    2011-09-26

    prediction of performance will be conducted DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. PA# TBD 24 • Empiricism ...Strategic Missile A&S Approach Overview Empiricism DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. PA# TBD...Extrapolation Simulated Data 25 • Empiricism cannot always predict future state • Mechanistic method enables enhanced predictions • Mechanistic will not be

  1. A robust approach to the missile defence location problem

    NARCIS (Netherlands)

    Bloemen, A.A.F.; Evers, L.; Barros, A.I.; Monsuur, H.; Wagelmans, A.P.M.

    2011-01-01

    This paper proposes a model for determining a robust defence strategy against ballistic missile threat. Our approach takes into account a variety of possible future scenarios and different forms of robustness criteria, including the well-known absolute robustness criterion. We consider two problem

  2. White Sands Missile Range 2011 Drinking Water Quality Report

    Science.gov (United States)

    2012-01-01

    acerca de su agua potable . Haga que alguien lo traduzca para usted, o hable con alguien que lo entienda. Main Post White Sands Missile Range 2011...standards. What is This Water Quality Report? Este informe contiene informacion importante acerca de su agua potable . Haga que alguien lo traduzca

  3. A Prototype Fibre Optic Gyroscope for Missile Guidance Applications,

    Science.gov (United States)

    This paper describes the design of a prototype fibre optic gyro, which is intended for missile guidance applications. Important design constraints...beam-splitter. Serrodyne phase ramps are impressed on the light propagating round the fibre optic sensor coil connected to the integrated optics chip

  4. Explosive Welding of Pipes

    Science.gov (United States)

    Drennov, Oleg; Drennov, Andrey; Burtseva, Olga

    2013-06-01

    For connection by welding it is suggested to use the explosive welding method. This method is rather new. Nevertheless, it has become commonly used among the technological developments. This method can be advantageous (saving material and physical resources) comparing to its statical analogs (electron-beam welding, argon-arc welding, plasma welding, gas welding, etc.), in particular, in hard-to-reach areas due to their geographic and climatic conditions. Explosive welding of cylindrical surfaces is performed by launching of welded layer along longitudinal axis of construction. During this procedure, it is required to provide reliable resistance against radial convergent strains. The traditional method is application of fillers of pipe cavity, which are dense cylindrical objects having special designs. However, when connecting pipes consecutively in pipelines by explosive welding, removal of the fillers becomes difficult and sometimes impossible. The suggestion is to use water as filler. The principle of non-compressibility of liquid under quasi-dynamic loading is used. In one-dimensional gasdynamic and elastic-plastic calculations we determined non-deformed mass of water (perturbations, which are moving in the axial direction with sound velocity, should not reach the layer end boundaries for 5-7 circulations of shock waves in the radial direction). Linear dimension of the water layer from the zone of pipe coupling along axis in each direction is >= 2R, where R is the internal radius of pipe.

  5. Formation of Strategy of Efficient Development of Cruise Tourism

    Directory of Open Access Journals (Sweden)

    Lohunova Natalia A.

    2014-03-01

    Full Text Available The article presents conceptualisation of basic provisions on formation of strategy of efficient development of cruise tourism in Ukraine. Based on the study of problems of the cruise sector development, the article identifies the main goal and structures relevant tasks, justifies main reference points and strategic priorities of development of the cruise industry, specifies principles, mechanisms and expected results of realisation of the designated strategic course. The article states that efficient development of cruise tourism requires creation of an effective system of regulatory and legal, organisational, scientific and methodical, financial and information support. The article offers methodical recommendations on preparation of statistical reports and submission of statistical information about the state and development of the cruise market to the bodies of state statistics, which would allow identification of its quantitative and qualitative parameters, carry out monitoring of the process of creation of the cruise tourist product, analyse practical consequences of measures on stimulation and regulation of the cruise sphere and assess results of realisation of priority directions of strategic development.

  6. Hardware in Loop Simulation for Missile Guidance and Control Systems

    Directory of Open Access Journals (Sweden)

    S. K. Chaudhuri

    1997-07-01

    Full Text Available The purpose of the guidance law is to determine appropriate missile flight path dynamics to achieve mission objective in an efficient manner based on navigation information. Today, guided missiles which are aerodynamically unstable or non-linear in all or part of the flight envelopes need control systems for stability as well as for steering. Many classical guidance and control laws have been used for tactical missiles with varying degrees of performance, complexity and seeker/sensor requirements. Increased accuracy requirements and more dynamic tactics of modern warfare demand improvement of performance which is a trade-off between sophisticated hardware and more sophisticated software. To avoid increase in cost by hardware sophistication, today's trend is to exploit new theoretical methods and low cost high speed microprocessor techniques. Missile test flights are very expensive. The missile system with its sophisticated software and hardware is not reusable after a test launch. Hardware-in-loop Simulation (HILS facilities and methodology form a well integrated system aimed at transforming a preliminary guidance and control system design to flight software and hardware with trajectory right from lift-off till its impact. Various guidance and control law studies pertaining to gathering basket and stability margins, pre-flight, post-flight analyses and validation of support systems have been carried out using this methodology. Nearly full spectrum of dynamically accurate six-degrees-of-freedom (6-DOF model of missile systems has been realised in the HILS scenario. The HILS facility allows interconnection of missile hardware in flight configuration. Pre-flight HILS results have matched fairly well with actual flight trial results. It was possible to detect many hidden defects in the onboard guidance and control software as well as in hardware during HILS. Deficiencies in model, like tail-wag-dog (TWD, flexibility, seeker dynamics and defects in

  7. Hepatitis E outbreak on cruise ship.

    Science.gov (United States)

    Said, Bengü; Ijaz, Samreen; Kafatos, George; Booth, Linda; Thomas, H Lucy; Walsh, Amanda; Ramsay, Mary; Morgan, Dilys

    2009-11-01

    In 2008, acute hepatitis E infection was confirmed in 4 passengers returning to the United Kingdom after a world cruise. Epidemiologic investigation showed that of 789 persons who provided blood samples, 195 (25%) were seropositive, 33 (4%) had immunoglobulin [Ig] M levels consistent with recent acute infection (11 of these persons were symptomatic), and 162 (21%) had IgG only, consistent with past infection. Passenger mean age was 68 years. Most (426/789, 54%) passengers were female, yet most with acute infection (25/33, 76%) were male. Sequencing of RNA from 3 case-patients identified hepatitis E virus genotype 3, closely homologous to genotype 3 viruses from Europe. Significant association with acute infection was found for being male, drinking alcohol, and consuming shellfish while on board (odds ratio 4.27, 95% confidence interval 1.23-26.94, p = 0.019). This was probably a common-source foodborne outbreak.

  8. 75 FR 82243 - Security Zones; Moored Cruise Ships, Port of San Diego, CA

    Science.gov (United States)

    2010-12-30

    ... a 100 yard radius around any cruise ship that is moored at any berth within the San Diego port area... for the safety of the cruise ship, vessels, and users of the waterway. Entry into these security zones... Broadway cruise ship terminal and the anticipated arrival of cruise ships immediately thereafter,...

  9. Assessment of blast loading effects - Types of explosion and loading effects

    Energy Technology Data Exchange (ETDEWEB)

    Cullis, Ian G., E-mail: igcullis@qinetiq.co [QinetiQ, Fort Halstead, Sevenoaks, Kent TN14 7BP (United Kingdom); Schofield, James, E-mail: jsschofield@qinetiq.co [QinetiQ, Rosyth, Dunfermline KY11 2XR (United Kingdom); Whitby, Angela, E-mail: ajwhitby@qinetiq.co [QinetiQ, Farnborough, Hampshire GU14 0LX (United Kingdom)

    2010-09-15

    There has been a great deal of work undertaken on the modelling and protection of the structure of buildings to explosive blast, fragment and missile penetration. Buildings and tunnels present interesting challenges because of the different energy release characteristics of modern explosives and gaseous mixtures. The paper describes how by combining modelling capabilities in blast-structure interaction with vulnerability models a capability is formed that has a wide range of potential uses, which links the many stages of response planning to an attack or more general emergency. From designing survivable infrastructures and planning protective measures, through training of staff and responders to handling of actual events, the concept provides a comprehensive approach to the whole spectrum of building and infrastructure survivability assessment issues for a wide range of environments. The paper describes its application to buildings and other related infrastructure.

  10. Nanosensors for trace explosive detection

    OpenAIRE

    2008-01-01

    Selective and sensitive detection of explosives is very important in countering terrorist threats. Detecting trace explosives has become a very complex and expensive endeavor because of a number of factors, such as the wide variety of materials that can be used as explosives, the lack of easily detectable signatures, the vast number of avenues by which these weapons can be deployed, and the lack of inexpensive sensors with high sensitivity and selectivity. High sensitivity and selectivity, co...

  11. Pining for home: Studying crew homesickness aboard a cruise liner

    African Journals Online (AJOL)

    Research in Hospitality Management is co-published by NISC (Pty) Ltd and Routledge, Taylor & Francis Group ... homesickness as a longing for the people, places and ..... has to be recognised as a serious issue for the cruise industry,.

  12. Storyboard GALILEO CRUISE SCIENCE OPPORTUNITIES describes asteroid encounters

    Science.gov (United States)

    1989-01-01

    Storyboard with mosaicked image of an asteroid and entitled GALILEO CRUISE SCIENCE OPPORTUNITIES describes asteroid objectives. These objectives include: first asteroid encounter; surface geology, composition size, shape, mass; and relation of primitive bodies to meteorites.

  13. Modeling the seakeeping performance of luxury cruise ships

    Science.gov (United States)

    Cao, Yu; Yu, Bao-Jun; Wang, Jian-Fang

    2010-09-01

    The seakeeping performance of a luxury cruise ship was evaluated during the concept design phase. By comparing numerical predictions based on 3-D linear potential flow theory in the frequency domain with the results of model tests, it was shown that the 3-D method predicted the seakeeping performance of the luxury cruise ship well. Based on the model, the seakeeping features of the luxury cruise ship were analyzed, and then the influence was seen of changes to the primary design parameters (center of gravity, inertial radius, etc.). Based on the results, suggestions were proposed to improve the choice of parameters for luxury cruise ships during the concept design phase. They should improve seakeeping performance.

  14. InRidge program: Preliminary results from the first cruise

    Digital Repository Service at National Institute of Oceanography (India)

    Mukhopadhyay, R.; Murthy, K.S.R.; Iyer, S.D.; Rao, M.M.M.; Banerjee, R.; Subrahmanyam, A.S.; Shirodkar, P.V.; Ghose, I.

    The first cruise under India's own Ridge research initiative, InRidge collected new data on bathymetry, free-air gravity and magnetic anomalies across the ridge axis between the Vema and Zhivago transform faults in the Central Indian Ridge...

  15. An outbreak of Cyclospora infection on a cruise ship.

    Science.gov (United States)

    Gibbs, R A; Nanyonjo, R; Pingault, N M; Combs, B G; Mazzucchelli, T; Armstrong, P; Tarling, G; Dowse, G K

    2013-03-01

    In 2010, an outbreak of cyclosporiasis affected passengers and crew on two successive voyages of a cruise ship that departed from and returned to Fremantle, Australia. There were 73 laboratory-confirmed and 241 suspected cases of Cyclospora infection reported in passengers and crew from the combined cruises. A case-control study performed in crew members found that illness was associated with eating items of fresh produce served onboard the ship, but the study was unable conclusively to identify the responsible food(s). It is likely that one or more of the fresh produce items taken onboard at a south-east Asian port during the first cruise was contaminated. If fresh produce supplied to cruise ships is sourced from countries or regions where Cyclospora is endemic, robust standards of food production and hygiene should be applied to the supply chain.

  16. Explosive turbulent magnetic reconnection.

    Science.gov (United States)

    Higashimori, K; Yokoi, N; Hoshino, M

    2013-06-21

    We report simulation results for turbulent magnetic reconnection obtained using a newly developed Reynolds-averaged magnetohydrodynamics model. We find that the initial Harris current sheet develops in three ways, depending on the strength of turbulence: laminar reconnection, turbulent reconnection, and turbulent diffusion. The turbulent reconnection explosively converts the magnetic field energy into both kinetic and thermal energy of plasmas, and generates open fast reconnection jets. This fast turbulent reconnection is achieved by the localization of turbulent diffusion. Additionally, localized structure forms through the interaction of the mean field and turbulence.

  17. European River Cruises On the Rise Among American Tourists

    Directory of Open Access Journals (Sweden)

    Melinda Jászberényi, Ph.D.

    2014-10-01

    Full Text Available River cruising is one of the most attractive and rapidly developing areas of international tourism. Beyond the beautiful natural environment of the rivers, architectural attractions along the riverside enrich the experience, providing historical and cultural background that deepens tourists’ connections to the city. This article provides an overview of Danube river cruise tourism among American tourist experts. It also showcases Budapest, an increasingly important and internationally recognized port of the Danube and capital of Hungary, as a popular tourist destination.

  18. Controlled by Distant Explosions

    Science.gov (United States)

    2007-03-01

    VLT Automatically Takes Detailed Spectra of Gamma-Ray Burst Afterglows Only Minutes After Discovery A time-series of high-resolution spectra in the optical and ultraviolet has twice been obtained just a few minutes after the detection of a gamma-ray bust explosion in a distant galaxy. The international team of astronomers responsible for these observations derived new conclusive evidence about the nature of the surroundings of these powerful explosions linked to the death of massive stars. At 11:08 pm on 17 April 2006, an alarm rang in the Control Room of ESO's Very Large Telescope on Paranal, Chile. Fortunately, it did not announce any catastrophe on the mountain, nor with one of the world's largest telescopes. Instead, it signalled the doom of a massive star, 9.3 billion light-years away, whose final scream of agony - a powerful burst of gamma rays - had been recorded by the Swift satellite only two minutes earlier. The alarm was triggered by the activation of the VLT Rapid Response Mode, a novel system that allows for robotic observations without any human intervention, except for the alignment of the spectrograph slit. ESO PR Photo 17a/07 ESO PR Photo 17a/07 Triggered by an Explosion Starting less than 10 minutes after the Swift detection, a series of spectra of increasing integration times (3, 5, 10, 20, 40 and 80 minutes) were taken with the Ultraviolet and Visual Echelle Spectrograph (UVES), mounted on Kueyen, the second Unit Telescope of the VLT. "With the Rapid Response Mode, the VLT is directly controlled by a distant explosion," said ESO astronomer Paul Vreeswijk, who requested the observations and is lead-author of the paper reporting the results. "All I really had to do, once I was informed of the gamma-ray burst detection, was to phone the staff astronomers at the Paranal Observatory, Stefano Bagnulo and Stan Stefl, to check that everything was fine." The first spectrum of this time series was the quickest ever taken of a gamma-ray burst afterglow

  19. Cruise ship's doctors - company employees or independent contractors?

    Science.gov (United States)

    Dahl, Eilif

    2016-01-01

    Traditionally, cruise companies have stated that they are in the transport business but not in the business of providing medical services to passengers. They have claimed not to be able to supervise or control the ship's medical personnel and cruise ship's doctors have therefore mostly been signed on as independent contractors, not employees. A United States court decision from 1988, Barbetta versus S/S Bermuda Star, supported this view and ruled that a ship's owner cannot be held vicariously liable for the negligence of the ship's doctor directed at the ship's passengers. Some years ago a cruise passenger fell and hit his head while boarding a trolley ashore. Hours later he was seen aboard by the ship's doctor, who sent him to a local hospital. He died 1 week later, and his daughter filed a complaint alleging the cruise company was vicariously liable for the purported negligence of the ship's doctor and nurse, under actual or apparent agency theories. A United States district court initially dismissed the case, but in November 2014 the United States Court of Appeals for the Eleventh Circuit disagreed and reversed. From then on independently contracted ship's doctors may be considered de facto employees of the cruise line. The author discusses the employment status of physicians working on cruise ships and reviews arguments for and against the Appellate Court's decision.

  20. Learning taxis’ cruising patterns with Ripley’s K function

    Institute of Scientific and Technical Information of China (English)

    宗芳; 张慧永

    2015-01-01

    Taxi drivers’ cruising patterns are learnt with GPS trajectory data collected in Shenzhen, China. By employing Ripley’s K function, the impacts of land use and pick-up experience on taxis’ cruising behavior are investigated concerning about both intensity of influence and radius of influence. The results indicate that, in general, taxi drivers tend to learn more from land use characteristics than from pick-up experience. The optimal radius of influence of land use points and previous pick-up points is 14.18 km and 9.93 km, respectively. The findings also show that the high-earning drivers or thorough drivers pay more attention to land use characteristics and tend to cruise in high-density area, while the low-earning drivers or focus drivers prefer to learn more from previous pick-up experience and select the area which is far away from the high-density area. These findings facilitate the development of measures of managing taxi’s travel behavior by providing useful insights into taxis’ cruising patterns. The results also provide useful advice for taxi drivers to make efficient cruising decision, which will contribute to the improvement of cruising efficiency and the reduction of negative effects.

  1. Laser machining of explosives

    Science.gov (United States)

    Perry, Michael D.; Stuart, Brent C.; Banks, Paul S.; Myers, Booth R.; Sefcik, Joseph A.

    2000-01-01

    The invention consists of a method for machining (cutting, drilling, sculpting) of explosives (e.g., TNT, TATB, PETN, RDX, etc.). By using pulses of a duration in the range of 5 femtoseconds to 50 picoseconds, extremely precise and rapid machining can be achieved with essentially no heat or shock affected zone. In this method, material is removed by a nonthermal mechanism. A combination of multiphoton and collisional ionization creates a critical density plasma in a time scale much shorter than electron kinetic energy is transferred to the lattice. The resulting plasma is far from thermal equilibrium. The material is in essence converted from its initial solid-state directly into a fully ionized plasma on a time scale too short for thermal equilibrium to be established with the lattice. As a result, there is negligible heat conduction beyond the region removed resulting in negligible thermal stress or shock to the material beyond a few microns from the laser machined surface. Hydrodynamic expansion of the plasma eliminates the need for any ancillary techniques to remove material and produces extremely high quality machined surfaces. There is no detonation or deflagration of the explosive in the process and the material which is removed is rendered inert.

  2. Cruise medicine: the dental perspective on health care for passengers during a world cruise.

    Science.gov (United States)

    Sobotta, Bernhard A J; John, Mike T; Nitschke, Ina

    2008-01-01

    Although more than 100 million passengers have taken a cruise since 1980, it is not known what dental treatment needs occur at sea. The routine dental documentation of a 2-month period at sea on a cruise ship carrying 1,619 passengers was analyzed. The subjects for the study were 57 passengers (3.5% of 1,619), with a mean age of 71 years (+/-9.8 y). Age, gender, number of natural teeth and implants, prosthetic status, diagnosis, treatment performed, percentage of emergency and routine procedures, number of appointments, duration of appointment, time since last visit to the dentist, and cabin category as indicator of socioeconomic status were extracted. Oral health-related quality of life (OHRQoL) was measured using the 14-item Oral Health Impact Profile. Passengers had a mean number of 20 natural teeth plus substantial fixed and removable prosthodontics. Emergency dental treatment accounted for 97% of the chairside time. The three most frequent emergency diagnoses were defective restorations (36%), pulpal disease (20%), and defective prosthesis and caries (both 11.5%). Common emergency therapies provided were complex surgical-prosthodontic rehabilitation, various endodontic treatments, and extractions. Per 1,000 persons/month, passengers required 21.6 emergency plus 2.5 routine appointments; 49% of passengers had seen a dentist within 3 months before going to sea. Passengers do attend their dentist for routine care/checkups before the voyage, yet experience complex dental emergencies. This is due to the presence of a high number of restorations that fail unexpectedly. Some failures are so severe that they would have forced the passenger to abort the cruise had there been no dental service available. The ease of access to quality dental care may explain the relatively low level of perceived problems as characterized by OHRQoL scores.

  3. Flight testing of the AIM/RIM-7M missile, preflight analysis

    Science.gov (United States)

    Hicks, W.; Greenberg, E.

    1981-11-01

    The AIM/RIM-7M missile is the most recent version of the AIM-7 missile series. It is in the preproduction phase and has completed most of the preproduction flight test evaluation. A description is presented of the preflight simulation techniques used, taking into account the value of the techniques in predicting the results of actual flights. The AIM/RIM-7M is a semiactive, radar-guided homing missile with sophisticated onboard digital processing. It may be launched from either an aircraft or a surface system. To a large degree, the AIM/RIM-7M represents problems typical of all guided missiles. The described techniques are directly applicable to radar-guided missiles and generically to all types of guided missiles. Attention is given to simulation bay activities, the anechoic chamber, aspects of RF control, the target array, computer models, aspects of preflight simulations, and the test setup.

  4. The proliferation of aerospace weapons technology: Ballistic missiles and the case of Brazil

    Science.gov (United States)

    Vossen, Terrence John

    1993-04-01

    The rationale behind the development of ballistic missile production in Brazil is examined by exploring the political, military, and economic determinants of ballistic missile demand in that country. To ascertain how Brazil developed missile production capabilities, the contributions of aerospace industries in industrialized states, the Brazilian space program, trade between less-developed countries, and illicit trade in missile technology are assessed. It is argued that missile development increasingly became a function of economic as opposed to security considerations, and that technologies transferred from developed country aerospace firms and Brazil's space program were primarily responsible for the creation of production capabilities. It is also contended that the proliferation of missile technology to Brazil was consistent with the workings of a system evident in the aerospace weapons technology market that sustains the horizontal spread of weapons production capabilities.

  5. Application of Pontryagin’s Minimum Principle in Optimum Time of Missile Manoeuvring

    Directory of Open Access Journals (Sweden)

    Sari Cahyaningtias

    2016-11-01

    Full Text Available Missile is a guided weapon and designed to protect outermost island from a thread of other country. It, commonly, is used as self defense. This research presented surface-to-surface missile in final dive manoeuvre for fixed target. Furthermore, it was proposed manoeuvring based on unmanned aerial vehicle (UAV, autopilot system, which needs accuration and minimum both time and thrust of missile while attacking object. This paper introduced pontryagin’s Minimum Principle, which is useable to solve the problem. The numerical solution showed that trajectory of the missile is split it up in three sub-intervals; flight, climbing, and diving. The numerical simulation showed that the missile must climb in order to satisfy the final dive condition and the optimum time of a missile depend on initial condition of the altitude and the terminal velocity

  6. BTT autopilot design for agile missiles with aerodynamic uncer tainty

    Institute of Scientific and Technical Information of China (English)

    Yueyue Ma; Jie Guo; Shengjing Tang

    2015-01-01

    The approach to the synthesis of autopilot with aerody-namic uncertainty is investigated in order to achieve large maneu-verability of agile missiles. The dynamics of the agile missile with reaction-jet control system (RCS) are presented. Subsequently, the cascade control scheme based on the bank-to-turn (BTT) steering technique is described. To address the aerodynamic un-certainties encountered by the control system, the active distur-bance rejection control (ADRC) method is introduced in the autopi-lot design. Furthermore, a compound control er, using extended state observer (ESO) to online estimate system uncertainties and calculate derivative of command signals, is designed based on dynamic surface control (DSC). Nonlinear simulation results show the feasibility of the proposed approach and validate the robust-ness of the control er with severe unmodeled dynamics.

  7. Design and development of Propulsion System for Antitank Guided Missile

    Directory of Open Access Journals (Sweden)

    T. Mohan Reddy

    1995-07-01

    Full Text Available A Propulsion system is designed and developed for the third generation antitank guided missile (ATGM. It consists of a separate booster and sustainer. Booster is ahead of sustainer, having four nozzles canted to the missile axis. Sustainer discharges through a supersonic blast tube. Low smoke, high energy nitramine propellant for this propulsion system developed by the High Energy Materials Research Laboratory (HEMRL, Pune, has been successfully flight-tested. The booster grain is tube-in-tube configuration with end inhibition and the sustainer grain is of end burning configuration. High strength aluminium alloy, HE-15, is used for rocket motor components. Glass-phenolic composite ablative material is used for thermal protection of motors and high density graphite is used for nozzle throats. The design considerations and approach, including grain configuration, nozzle, and ignitersare briefly discussed. The propulsion system has been extensively tested in static tests and in flights, establishing the satisfactory performance of the system.

  8. A Predictive Explicit Guidance Scheme for Ballistic Missiles

    Directory of Open Access Journals (Sweden)

    N. Prabhakar

    2013-09-01

    Full Text Available A new approach to the design of ballistic missile guidance is presented in this paper. The proposed method uses the missile model to predict the likely impact point at every guidance cycle and apply course corrections based on the predicted impact point (PIP deviations. The algorithm also estimates the in-flight thrust variation from nominal and accordingly updates the model to reduce the uncertainty in the prediction of the impact point. The performance of the algorithm is tested through 6-DOF simulation. The simulation results show excellent performance of the proposed guidance scheme in nominal & off nominal cases.Defence Science Journal, 2013, 63(5, pp.456-461, DOI:http://dx.doi.org/10.14429/dsj.63.2575

  9. Explosive Welding for Remote Applications

    Science.gov (United States)

    Bement, L. J.

    1985-01-01

    Explosive seam welding produces up to 100-percent joint strength. Ribbon explosive activated by remote energy source produces metallurgically sound joint. Success of technique verified for joints between like metals and joints between two different metals. Applications include structural assembly in toxic atmospheres and in radioactive or otherwise hazardous environments.

  10. Active Water Explosion Suppression System

    Science.gov (United States)

    2002-06-01

    efficient in eliminating the heat of detonation , thereby eliminating the heat of combustion and the associated burning of explosive by-products in the...efficiency in eliminating the heat of detonation . In any case, the net effect of the water absorbing the detonation energy of the explosive is a major

  11. Introduction to High Explosives Science

    Energy Technology Data Exchange (ETDEWEB)

    Skidmore, Cary Bradford [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Preston, Daniel N. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-11-17

    These are a set of slides for educational outreach to children on high explosives science. It gives an introduction to the elements involved in this science: carbon, hydrogen, nitrogen, and oxygen. Combined, these form the molecule HMX. Many pictures are also included to illustrate explosions.

  12. External Peer Review Report on the Missile Defense Agency Office of Internal Review

    Science.gov (United States)

    2015-05-14

    No. DODIG-2015-123 M A Y 1 4 , 2 0 1 5 External Peer Review Report on the Missile Defense Agency Office of Internal Review Report Documentation...3. DATES COVERED 00-00-2015 to 00-00-2015 4. TITLE AND SUBTITLE External Peer Review Report on the Missile Defense Agency Office of Internal... REVIEW SUBJECT: External Peer Review Report on the Missile Defense Agency Office of Internal Review (Report No. DODIG-2015-123) Attached is the

  13. Sea-Based Ballistic Missile Defense - Background and Issues for Congress

    Science.gov (United States)

    2009-12-22

    Aegis ships. The program involved modifying the SM-2 Block IV air-defense missile. The missile, as modified, was called the Block IVA version. The...system was designed to intercept descending missiles endo-atmospherically (i.e., within the atmosphere) and destroy them with the Block IVA missile’s...the SBX radar in Texas.52 SBX underwent sea trials and high- power radiation testing in the Gulf of Mexico in 2005. It was then moved by a heavy

  14. ARMS CONTROL: U.S. Efforts to Control the Transfer of Nuclear-Capable Missile Technology

    Science.gov (United States)

    2015-12-11

    risk of diversion is an important part of its analysis, Commerce focuses its reviews on certain countries that are developing nuclear-capable missiles...ogy to countries developing nuclear-capable missile systems. Our work was conducted in the United States at the Departments of State, Commerce , and...the MTCR in halting the transfer of MTCR-related systems and technology to countries developing nuclear-capable missile systems. The objectives, scope

  15. HOMA: Israel’s National Missile Defense Strategy (Abridged Version)

    Science.gov (United States)

    2007-11-02

    developed by Tadiran Electronics Systems), and the Hazelnut Tree launcher control center.28 Each battery is designed to track and counter —14 enemy...Communications center, (4) HAZELNUT TREE fire control center, (5) GREEN PINE radar antenna, (6) Radar control center, (7) Radar power unit, (8) Radar...cooling unit. A battery has four launch vehicles with six ready missiles each, a Tadiran Citron Tree launch control centre, a Hazelnut Tree fire

  16. Long-Range Ballistic Missile Defense in Europe

    Science.gov (United States)

    2010-04-26

    and another transportable radar to be deployed in a country closer to Iran (which was never publicly identified). Deployment of the GMD European...former Polish President Lech Walesa and former Czech Prime Minister Mirek Topolanek criticized the Obama administration’s policy toward the region.4...the Pacific missile test range, would have been refurbished and transported to a fixed site at a military training base in the Czech Republic. The

  17. System Architecture for Anti-Ship Ballistic Missile Defense (ASBMD)

    OpenAIRE

    Hobgood, Jean; Madison, Kimberly; Pawlowski, Geoffrey; Nedd, Steven.; Roberts, Michael; Rumberg, Paige

    2009-01-01

    Approved for public release; distribution is unlimited. Recent studies suggest that China is developing a new class of ballistic missiles that can be used against moving targets, such as ships. One such technology is anticipated to cover a range of 2,000 kilometers and operate at a speed of Mach 10. The threat is also capable of maneuvering both during the midcourse and terminal flight phases for the purposes of guidance, target acquisition, and countermeasures. This threat could greatl...

  18. Missile trajectory shaping using sampling-based path planning

    OpenAIRE

    Pharpatara, Pawit; Pepy, Romain; Hérissé, Bruno; Bestaoui, Yasmina

    2013-01-01

    International audience; This paper presents missile guidance as a complex robotic problem: a hybrid non-linear system moving in a heterogeneous environment. The proposed solution to this problem combines a sampling-based path planner, Dubins' curves and a locally-optimal guidance law. This algorithm aims to find feasible trajectories that anticipate future flight conditions, especially the loss of manoeuverability at high altitude. Simulated results demonstrate the substantial performance imp...

  19. 1997 Report to the Congress on Ballistic Missile Defense.

    Science.gov (United States)

    2007-11-02

    be modified to the Block IVA TBMD configuration. This area defense program will provide a lower-tier or endoatmospheric intercept capability. The...and ADCP completed operational testing and evaluation at White Sands Missile Range, New Mexico . A successful TMD demonstration was conducted as part of...UOES FY 99) Sea Lower PAC-3 Configuration Three (FUE FY 99) Navy Theater Wide TBMD AEGIS With SM-2 Block IVA (FUE FY 02; UOES Software

  20. The U.S. Navy and the Cuban Missile Crisis

    Science.gov (United States)

    1990-05-22

    floor of 1,200 feet, the Guidelines were photographed at Bahia Honda, Havana, La Coloma, Mariel, Matanzas , San Julian, and Cienfuegos. Photography of the...a sharp warning might deter the Soviets from deploying ballistic missiles to Cuba, but unwilling to go public with the evidence 68 available to date...p. 4; "United States Air Force Security Service: Performance During the Cuban Crisis, April- December 1962," n.d., NSACF, pp. 12, 68 ; "Air Force

  1. Space and Missile Systems Center Standard: Space Flight Pressurized Systems

    Science.gov (United States)

    2015-02-28

    pressure and vehicle structural loads. The main propellant tank of a launch vehicle is a typical example. Pressurized System: A system that...SPACE AND MISSILE SYSTEMS CENTER STANDARD SPACE FLIGHT PRESSURIZED SYSTEMS APPROVED FOR PUBLIC RELEASE...Space Flight Pressurized Systems 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER 5e. TASK NUMBER

  2. Analyzing and designing object-oriented missile simulations with concurrency

    Science.gov (United States)

    Randorf, Jeffrey Allen

    2000-11-01

    A software object model for the six degree-of-freedom missile modeling domain is presented. As a precursor, a domain analysis of the missile modeling domain was started, based on the Feature-Oriented Domain Analysis (FODA) technique described by the Software Engineering Institute (SEI). It was subsequently determined the FODA methodology is functionally equivalent to the Object Modeling Technique. The analysis used legacy software documentation and code from the ENDOSIM, KDEC, and TFrames 6-DOF modeling tools, including other technical literature. The SEI Object Connection Architecture (OCA) was the template for designing the object model. Three variants of the OCA were considered---a reference structure, a recursive structure, and a reference structure with augmentation for flight vehicle modeling. The reference OCA design option was chosen for maintaining simplicity while not compromising the expressive power of the OMT model. The missile architecture was then analyzed for potential areas of concurrent computing. It was shown how protected objects could be used for data passing between OCA object managers, allowing concurrent access without changing the OCA reference design intent or structure. The implementation language was the 1995 release of Ada. OCA software components were shown how to be expressed as Ada child packages. While acceleration of several low level and other high operations level are possible on proper hardware, there was a 33% degradation of 4th order Runge-Kutta integrator performance of two simultaneous ordinary differential equations using Ada tasking on a single processor machine. The Defense Department's High Level Architecture was introduced and explained in context with the OCA. It was shown the HLA and OCA were not mutually exclusive architectures, but complimentary. HLA was shown as an interoperability solution, with the OCA as an architectural vehicle for software reuse. Further directions for implementing a 6-DOF missile modeling

  3. Joint Air-to-Surface Standoff Missile (JASSM)

    Science.gov (United States)

    2013-12-01

    Retrieval Dev Est - Development Estimate DoD - Department of Defense DSN - Defense Switched Network Econ - Economic Eng - Engineering Est...Missile Reliability (KSA) (CPD para 6.2.8) 4th Lot .91 4th Lot. 91 IOT &E .80 4th Lot .85 IOT &E .95 4th Lot .91 JASSM December 2013 SAR April 16, 2014 17...Acronyms and Abbreviations CPD - Capability Production Document IOT &E - Initial Operational Test and Evaluation KPP - Key Performance Parameter KSA - Key

  4. Quadrennial Defense Review and Ballistic Missile Defense Review

    Science.gov (United States)

    2010-03-11

    global defense posture 3 BMDR Highlights • Outlines a strategy and policy framework to – Defend the homeland against limited ballistic missile attack...abroad – Collaborate closely with allies and partners – Pursue a cooperative and tailored global defense posture – Strengthen US civilian capacity...reviews in 2010 – QDR and BMDR released February 1, 2010 – Nuclear Posture Review to be released this spring – Space Posture Review, with Director of

  5. Decoupling Control Method Based on Neural Network for Missiles

    Institute of Scientific and Technical Information of China (English)

    ZHAN Li; LUO Xi-shuang; ZHANG Tian-qiao

    2005-01-01

    In order to make the static state feedback nonlinear decoupling control law for a kind of missile to be easy for implementation in practice, an improvement is discussed. The improvement method is to introduce a BP neural network to approximate the decoupling control laws which are designed for different aerodynamic characteristic points, so a new decoupling control law based on BP neural network is produced after the network training. The simulation results on an example illustrate the approach obtained feasible and effective.

  6. The AMRDEC Process for Analyzing Initiation Effectiveness Against Explosive Filled Small Arms Threats

    Science.gov (United States)

    Moore, Dedra

    2011-06-01

    The mortar threats, due to their small size and robust structure, present difficult challenges to new and existing systems for acquisition, tracking, intercept and defeat. Defeat must come through either the fuze or detonation of the explosive. Direct detonation of the explosive payload at the point of intercept via fragment or direct missile impact is considered a more achievable alternative. A pre-detonation of the fuze due to impact can produce similar results. However, fuzes can be a small percentage of the target area. Another possible outcome is the fuze would simply be duded. However, a dudded mortar can be indistinguishable from a non-dudded mortar until it strikes the ground. A robust process must have the capability of analyzing multiple solution types. An extensive database of single fragment impacts against threats with high explosive payloads was utilized to develop and modify models to predict explosive reaction. The goal was to create models or equations that could be incorporated into fast running simulation tools to access potential lethal mechanisms over a wide range of battlespace conditions quickly. A methodology to ascertain impact effectiveness on a typical generic threat fuze was also developed separately to be included in the simulation tools. Computational efforts and trade studies can be conducted with fast running simulation tools whose accuracy had been validated with significant test data.

  7. Explosive welding of undersea pipelines

    Energy Technology Data Exchange (ETDEWEB)

    Stalker, A.W.

    1978-02-01

    The phenomenon of explosive welding has been known informally for many years. A number of investigations reported the occurerence of solid phase bonds as an incidental effect when using high explosives in association with adjacent metal surfaces and probably the earliest formal record was the observation by Carl in 1944 of a bond between two copper discs in contact with a detonator. In 1957 Philipchuk reported what is now recognized as an explosive weld between aluminium channel sections and a steel die when carrying out explosive forming trials. Since then a great deal of development work has resulted in explosive welding becoming a well established manufacturing technique, particularly in the fields of cladding and the joining of tube/tubeplates. In more recent years the process has been extended to the welding of large diameter line pipe materials.

  8. Explosive welding: Principles and potentials

    Energy Technology Data Exchange (ETDEWEB)

    Brasher, D.G.; Butler, D.J. [Northwest Technical Industries, Inc., Sequim, WA (United States)

    1995-03-01

    Explosive welding is a solid-state process in which controlled explosive detonations force two or more metals together at high pressures. The resultant composite system is joined with a high-quality metallurgical bond. Explosive welding (or explosive bonding) is a high-pressure process in which contaminant surface films are plastically jetted off the base metals as a result of the collision of two metals. The time duration involved in the explosive welding event is so short that the reaction zone (or heat affected zone) between the constituent metals is microscopic. During the process, the first few atomic layers of each metal become plasma because of the high velocity of the impact (200 to 500 m/s, 660 to 1,640 ft/s.) The angle of collision causes the plasma to jet in front of the collision point, effectively scrub-cleaning both surfaces, and leaving clean metal behind.

  9. The Scaled Thermal Explosion Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Wardell, J F; Maienschein, J L

    2002-07-05

    We have developed the Scaled Thermal Explosion Experiment (STEX) to provide a database of reaction violence from thermal explosion for explosives of interest. Such data are needed to develop, calibrate, and validate predictive capability for thermal explosions using simulation computer codes. A cylinder of explosive 25, 50 or 100 mm in diameter, is confined in a steel cylinder with heavy end caps, and heated under controlled conditions until reaction. Reaction violence is quantified through non-contact micropower impulse radar measurements of the cylinder wall velocity and by strain gauge data at reaction onset. Here we describe the test concept, design and diagnostic recording, and report results with HMX- and RDX-based energetic materials.

  10. Robust Hybrid Control for Ballistic Missile Longitudinal Autopilot

    Institute of Scientific and Technical Information of China (English)

    WAEL Mohsen Ahmed; QUAN Quana

    2011-01-01

    This paper investigates the boost phase's longitudinal autopilot of a ballistic missile equipped with thrust vector control.The existing longitudinal autopilot employs time-invariant passive resistor-inductor-capacitor (RLC) network compensator as a control strategy,which does not take into account the time-varying missile dynamics.This may cause the closed-loop system instability in the presence of large disturbance and dynamics uncertainty.Therefore,the existing controller should be redesigned to achieve more stable vehicle response.In this paper,based on gain-scheduling adaptive control strategy,two different types of optimal controllers are proposed.The first controller is gain-scheduled optimal tuning-proportional-integral-derivative (PID) with actuator constraints,which supplies better response but requires a priori knowledge of the system dynamics.Moreover,the controller has oscillatory response in the presence of dynamic uncertainty.Taking this into account,gain-scheduled optimal linear quadratic (LQ) in conjunction with optimal tuning-compensator offers the greatest scope for controller improvement in the presence of dynamic uncertainty and large disturbance.The latter controller is tested through various scenarios for the validated nonlinear dynamic flight model of the real ballistic missile system with autopilot exposed to external disturbances.

  11. Changing law of launching pitching angular velocity of rotating missile

    Institute of Scientific and Technical Information of China (English)

    Liu Guang; Xu Bin; Jiao Xiaojuan; Zhen Tiesheng

    2014-01-01

    In order to provide accurate launching pitching angular velocity (LPAV) for the exterior trajectory optimization design, multi-flexible body dynamics (MFBD) technology is presented to study the changing law of LPAV of the rotating missile based on spiral guideway. An MFBD virtual prototype model of the rotating missile launching system is built using multi-body dynamics modeling technology based on the built flexible body models of key components and the special force model. The built model is verified with the frequency spectrum analysis. With the flexible body contact theory and nonlinear theory of MFBD technology, the research is conducted on the influence of a series of factors on LPAV, such as launching angle change, clearance between launching canister and missile, thrust change, thrust eccentricity and mass eccentricity, etc. Through this research, some useful values of the key design parameters which are difficult to be measured in physical tests are obtained. Finally, a simplified mathematical model of the changing law of LPAV is presented through fitting virtual test results using the linear regression method and verified by physical flight tests. The research results have important significance for the exterior trajectory optimization design.

  12. Design and Simulation of TF and TA Controller for Missile

    Institute of Scientific and Technical Information of China (English)

    ZHA Xu; GUANG Cheng-qi; CUI Ping-yuan; LIU Yong-cai

    2005-01-01

    A nonlinear terrain following(TF) and terrain avoidance(TA) controller is proposed for missile control systems.Based on classical TF algorithm (adaptive angle method), a new method for TF controller is proposed by using angle of attack. A method of obtaining terrain outline data from digital elevation map (DEM) for TF control is discussed in order to save store space. A TA algorithm is proposed by using bank-to-turn technique. The block control model, which is suitable for backstepping design, is given for nonlinear model of missile. Making full use of the characteristics of the system and combining block control principle and backstepping technique, a robust controller design method is proposed. Uncertainties in every sub-block are allowed, and can be canceled by using the idea of nonlinear damping. It is proved that the state tracking errors are converged to a neighborhood of the origin exponentially. Finally, nonlinear six-degree-of-freedom simulation results for the missile model are presented to demonstrate the effectiveness of the proposed control law.

  13. Study on combat effectiveness of air defense missile weapon system based on queuing theory

    Science.gov (United States)

    Zhao, Z. Q.; Hao, J. X.; Li, L. J.

    2017-01-01

    Queuing Theory is a method to analyze the combat effectiveness of air defense missile weapon system. The model of service probability based on the queuing theory was constructed, and applied to analyzing the combat effectiveness of "Sidewinder" and "Tor-M1" air defense missile weapon system. Finally aimed at different targets densities, the combat effectiveness of different combat units of two types' defense missile weapon system is calculated. This method can be used to analyze the usefulness of air defense missile weapon system.

  14. The interaction of explosively generated plasma with explosives

    Science.gov (United States)

    Tasker, Douglas G.; Whitley, Von H.; Johnson, Carl E.

    2017-01-01

    It has been shown that the temperature of explosively generated plasma (EGP) is of the order of 1 eV and plasma ejecta can be focused to achieve velocities as high as 25 km/s. Proof-of-principle tests were performed to determine if EGP could be used for explosive ordnance demolition and other applications. The goals were: to benignly disable ordnance containing relatively sensitive high performance explosives (PBX-9501); and to investigate the possibility of interrupting an ongoing detonation in a powerful high explosive (again PBX-9501) with EGP. Experiments were performed to establish the optimum sizes of plasma generators for the benign deactivation of high explosives, i.e., the destruction of the ordnance without initiating a detonation or comparable violent event. These experiments were followed by attempts to interrupt an ongoing detonation by the benign disruption of the unreacted explosive in its path. The results were encouraging. First, it was demonstrated that high explosives could be destroyed without the initiation of a detonation or high order reaction. Second, ongoing detonations were successfully interrupted with EGP. [LA-UR-15-25350

  15. Mixing in explosions

    Energy Technology Data Exchange (ETDEWEB)

    Kuhl, A.L.

    1993-12-01

    Explosions always contain embedded turbulent mixing regions, for example: boundary layers, shear layers, wall jets, and unstable interfaces. Described here is one particular example of the latter, namely, the turbulent mixing occurring in the fireball of an HE-driven blast wave. The evolution of the turbulent mixing was studied via two-dimensional numerical simulations of the convective mixing processes on an adaptive mesh. Vorticity was generated on the fireball interface by baroclinic effects. The interface was unstable, and rapidly evolved into a turbulent mixing layer. Four phases of mixing were observed: (1) a strong blast wave phase; (2) and implosion phase; (3) a reshocking phase; and (4) an asymptotic mixing phase. The flowfield was azimuthally averaged to evaluate the mean and r.m.s. fluctuation profiles across the mixing layer. The vorticity decayed due to a cascade process. This caused the corresponding enstrophy parameter to increase linearly with time -- in agreement with homogeneous turbulence calculations of G.K. Batchelor.

  16. Explosion risks from nanomaterials

    Science.gov (United States)

    Bouillard, Jacques; Vignes, Alexis; Dufaud, Olivier; Perrin, Laurent; Thomas, Dominique

    2009-05-01

    Emerging nanomanufactured products are being incorporated in a variety of consumer products ranging from closer body contact products (i.e. cosmetics, sunscreens, toothpastes, pharmaceuticals, clothing) to more remote body-contact products (electronics, plastics, tires, automotive and aeronautical), hence posing potential health and environmental risks. The new field of nanosafety has emerged and needs to be explored now rather than after problems becomes so ubiquitous and difficult to treat that their trend become irreversible. Such endeavour necessitates a transdisciplinary approach. A commonly forgotten and/or misunderstood risk is that of explosion/detonation of nanopowders, due to their high specific active surface areas. Such risk is emphasized and illustrated with the present development of an appropriate risk analysis. For this particular risk, a review of characterization methods and their limitations with regard to nanopowders is presented and illustrated for a few organic and metallic nanopowders.

  17. Direct imaging of explosives

    Energy Technology Data Exchange (ETDEWEB)

    Knapp, E.A.; Moler, R.B.; Saunders, A.W.; Trower, W.P. E-mail: trower@naxs.net

    2000-11-15

    Any technique that can detect nitrogen concentrations can screen for concealed explosives. However, such a technique would have to be insensitive to metal, both encasing and incidental. If images of the nitrogen concentrations could be captured, then, since form follows function, a robust screening technology could be developed. However these images would have to be sensitive to the surface densities at or below that of the nitrogen contained in buried anti-personnel mines or of the SEMTEX that brought down Pan Am 103, {approx}200 g. Although the ability to image in three-dimensions would somewhat reduce false positives, capturing collateral images of carbon and oxygen would virtually assure that nitrogenous non-explosive material like fertilizer, Melmac[reg] dinnerware, and salami could be eliminated. We are developing such an instrument, the Nitrogen Camera, which has met experimentally these criteria with the exception of providing oxygen images, which awaits the availability of a sufficiently energetic light source. Our Nitrogen Camera technique uses an electron accelerator to produce photonuclear reactions whose unique decays it registers. Clearly if our Nitrogen Camera is made mobile, it could be effective in detecting buried mines, either in an active battlefield situation or in the clearing of abandoned military munitions. Combat operations require that a swathe the width of an armored vehicle, 5 miles deep, be screened in an hour, which is within our camera's scanning speed. Detecting abandoned munitions is technically easier as it is free from the onerous speed requirement. We describe here our Nitrogen Camera and show its 180 pixel intensity images of elemental nitrogen in a 200 g mine simulant and in a 125 g stick of SEMTEX. We also report on our progress in creating a lorry transportable 70 MeV electron racetrack microtron, the principal enabling technology that will allow our Nitrogen Camera to be deployed in the field.

  18. Direct imaging of explosives.

    Science.gov (United States)

    Knapp, E A; Moler, R B; Saunders, A W; Trower, W P

    2000-01-01

    Any technique that can detect nitrogen concentrations can screen for concealed explosives. However, such a technique would have to be insensitive to metal, both encasing and incidental. If images of the nitrogen concentrations could be captured, then, since form follows function, a robust screening technology could be developed. However these images would have to be sensitive to the surface densities at or below that of the nitrogen contained in buried anti-personnel mines or of the SEMTEX that brought down Pan Am 103, approximately 200 g. Although the ability to image in three-dimensions would somewhat reduce false positives, capturing collateral images of carbon and oxygen would virtually assure that nitrogenous non-explosive material like fertilizer, Melmac dinnerware, and salami could be eliminated. We are developing such an instrument, the Nitrogen Camera, which has met experimentally these criteria with the exception of providing oxygen images, which awaits the availability of a sufficiently energetic light source. Our Nitrogen Camera technique uses an electron accelerator to produce photonuclear reactions whose unique decays it registers. Clearly if our Nitrogen Camera is made mobile, it could be effective in detecting buried mines, either in an active battlefield situation or in the clearing of abandoned military munitions. Combat operations require that a swathe the width of an armored vehicle, 5 miles deep, be screened in an hour, which is within our camera's scanning speed. Detecting abandoned munitions is technically easier as it is free from the onerous speed requirement. We describe here our Nitrogen Camera and show its 180 pixel intensity images of elemental nitrogen in a 200 g mine simulant and in a 125 g stick of SEMTEX. We also report on our progress in creating a lorry transportable 70 MeV electron racetrack microtron, the principal enabling technology that will allow our Nitrogen Camera to be deployed in the field.

  19. Iranian Ballistic Missile Threat and a Phased, Adaptive Approach for Missile Defense in Europe: Perceptions, Policies and Scenarios

    Science.gov (United States)

    2010-09-15

    critical challenges that endanger peace. The institute has offices in New York, Brussels and Moscow. In May 2009, EWI published a report titled...Program: Treading Water in Shark -Infested Seas,” The Heritage Foundation, April 8, 2010, http://www.heritage.org/Research/Reports/2010/04/The-Obama...Administrations-Ballistic-Missile- Defense-Program-Treading-Water-in- Shark -Infested-Seas. 129 Ibid. 57 an ICBM until 2020 (using the SM-3 Block

  20. Two-dimensional simulations of explosive eruptions of Kick-em Jenny and other submarine volcanos

    Energy Technology Data Exchange (ETDEWEB)

    Gisler, Galen R.; Weaver, R. P. (Robert P.); Mader, Charles L.; Gittings, M. L. (Michael L.)

    2004-01-01

    Kick-em Jenny, in the Eastern Caribbean, is a submerged volcanic cone that has erupted a dozen or more times since its discovery in 1939. The most likely hazard posed by this volcano is to shipping in the immediate vicinity (through volcanic missiles or loss-of-buoyancy), but it is of interest to estimate upper limits on tsunamis that might be produced by a catastrophic explosive eruption. To this end, we have performed two-dimensional simulations of such an event in a geometry resembling that of Kick-em Jenny with our SAGE adaptive mesh Eulerian multifluid compressible hydrocode. We use realistic equations of state for air, water, and basalt, and follow the event from the initial explosive eruption, through the generation of a transient water cavity and the propagation of waves away from the site. We find that even for extremely catastrophic explosive eruptions, tsunamis from Kick-em Jenny are unlikely to pose significant danger to nearby islands. For comparison, we have also performed simulations of explosive eruptions at the much larger shield volcano Vailuluu in the Samoan chain, where the greater energy available can produce a more impressive wave. In general, however, we conclude that explosive eruptions do not couple well to water waves. The waves that are produced from such events are turbulent and highly dissipative, and don't propagate well. This is consistent with what we have found previously in simulations of asteroid-impact generated tsunamis. Non-explosive events, however, such as landslides or gas hydrate releases, do couple well to waves, and our simulations of tsunamis generated by subaerial and sub-aqueous landslides demonstrate this.

  1. TWO-DIMENSIONAL SIMULATIONS OF EXPLOSIVE ERUPTIONS OF KICK-EM JENNY AND OTHER SUBMARINE VOLCANOS

    Directory of Open Access Journals (Sweden)

    Galen Gisler

    2006-01-01

    Full Text Available Kick-em Jenny, in the Eastern Caribbean, is a submerged volcanic cone that has erupted a dozen or more times since its discovery in 1939. The most likely hazard posed by this volcano is to shipping in the immediate vicinity (through volcanic missiles or loss-of-buoyancy, but it is of interest to estimate upper limits on tsunamis that might be produced by a catastrophic explosive eruption. To this end, we have performed two-dimensional simulations of such an event in a geometry resembling that of Kick-em Jenny with our SAGE adaptive mesh Eulerian multifluid compressible hydrocode. We use realistic equations of state for air, water, and basalt, and follow the event from the initial explosive eruption, through the generation of a transient water cavity and the propagation of waves away from the site. We find that even for extremely catastrophic explosive eruptions, tsunamis from Kick-em Jenny are unlikely to pose significant danger to nearby islands. For comparison, we have also performed simulations of explosive eruptions at the much larger shield volcano Vailulu'u in the Samoan chain, where the greater energy available can produce a more impressive wave. In general, however, we conclude that explosive eruptions do not couple well to water waves. The waves that are produced from such events are turbulent and highly dissipative, and don't propagate well. This is consistent with what we have found previously in simulations of asteroid-impact generated tsunamis. Non-explosive events, however, such as landslides or gas hydrate releases, do couple well to waves, and our simulations of tsunamis generated by sub- aerial and sub-aqueous landslides demonstrate this.

  2. Shock desensitizing of solid explosive

    Energy Technology Data Exchange (ETDEWEB)

    Davis, William C [Los Alamos National Laboratory

    2010-01-01

    Solid explosive can be desensitized by a shock wave too weak to initiate it promptly, and desensitized explosive does not react although its chemical composition is almost unchanged. A strong second shock does not cause reaction until it overtakes the first shock. The first shock, if it is strong enough, accelerates very slowly at first, and then more rapidly as detonation approaches. These facts suggest that there are two competing reactions. One is the usual explosive goes to products with the release of energy, and the other is explosive goes to dead explosive with no chemical change and no energy release. The first reaction rate is very sensitive to the local state, and the second is only weakly so. At low pressure very little energy is released and the change to dead explosive dominates. At high pressure, quite the other way, most of the explosive goes to products. Numerous experiments in both the initiation and the full detonation regimes are discussed and compared in testing these ideas.

  3. BALINESE WOMEN IN THE CRUISE SHIPS TOURISM INDUSTRY

    Directory of Open Access Journals (Sweden)

    I Made Darma Oka

    2016-03-01

    Full Text Available As one of the most popular destinations for international tourists, Bali has attracted a sizeable and growing labor force in the tourism sector of the economy. This fact has triggered Balinese labor force to participate in such service industry. As a supplier of tourism labor force Bali has been increasingly successful in promoting the number of workers to be employed on cruise ships. The participation rate of Balinese women in cruise industry over the last four years has dramatically increased. The Balinese women’s participation in cruise ship employment has brought major implications for their life and culture. Generally, the present study aimed to provide an overview of Balinese women employed on board of a cruise ship. More specifically, it examined (1 the strengths, weaknesses, opportunities, and threats faced by Balinese women working in cruise industry, (2 factors influencing them to work in the industry, and (3 the implications brought by such employment for their life and society. The present study used quantitative and qualitative data collected through economic, social, and cultural approach. The sample was comprised of 200 respondents selected using accidental sampling method. To answer the research questions, data collection was conducted through observation, interviews, as well as focus group discussion (FGD. The data on the strengths, weaknesses, opportunities, and threats faced by Balinese women on board of a cruise ship were analyzed using SWOT analysis, whereas the data on the factors influencing them to work in the cruise industry were analyzed using factor analysis. Finally, qualitative analysis was employed to analyze the data on the economic, social, and cultural implications for their life. The analysis showed that: (1 Balinese women were employed on board of a cruise linerpredominantly as support staff. The strengths of Balinese women cruise ship workers included being friendly, always smiling, being honest, being loyal

  4. Participation in the 1996 Arlindo Cruise to the Indonesian Seas

    Science.gov (United States)

    Marra, John

    1997-01-01

    The objective of Arlindo-Productivity is to understand the factors responsible for regional differences in the response of phytoplankton and zooplankton to the SE and NW Monsoons in Indonesia. The hypothesis is that an interplay between circulation and shoaling of the nutricline, as a response to the monsoons, regulates productivity in the Indonesian Seas. My o@jective for the cruise in 1996 was to continue our collaboration with Indonesian scientists by conducting a set of hydrographic, primary production and spectral irradiance observations in the Indonesian Seas. This grant paid for shipping, travel and incidental costs associated with participation in the cruise in December, 1996. Ship costs were borne by the Indonesian Institute of Sciences as part of the collaborative effort. A plan for Arlindo in 1996 was agreed upon in March, 1996, by Indonesian scientists together with Arnold Gordon. The plan called for a 20-day physical oceanography and mooring cruise in November, 1996, followed by a 5-day bio-optical cruise. The bio-optical cruise departed from, and returned to, Ambon, and sampled in the Banda Sea. We completed a series of chlorophyll analyses, both a sampling of surface variability and depth profiles in the Banda Sea. We also completed three MER profiles for depth profiles of spectral irradiance. These data have a useful by-product in that they can be used for vicarious calibration of the OCTS sensor aboard the ADEOS satellite. As such, the data has been transmitted to NASDA in Japan for their use.

  5. Impressions of Serbia: Tourists on cruises along Corridor 7

    Directory of Open Access Journals (Sweden)

    Dragin Aleksandra S.

    2009-01-01

    Full Text Available This paper deals with cruises along Corridor 7 and the tourist offer of Serbia. The purpose of the paper has been to establish how international tourists see our country during their travels across Serbia on cruises along Corridor 7. The research has been based on the interviews with international tourists who participated in land tours while cruising through Serbia. The interviews, together with the structured questionnaire, were conducted from March to November 2007 with the objectives to establish the following: the structure of the respondents according to the country of origin, gender and age structure, as well as the social and economic structure; what their motives are for cruising along Corridor 7; what is their perception of the value obtained through the tourist product and services during the Corridor 7 cruises and during their stay in Serbia (what they liked best in Serbia; if they were dissatisfied with anything in terms of the tourist offer of Serbia; to what extent their visit complemented or influenced their personal impressions of this country - what their impressions were before and after the visit. The importance of this paper, above all, is in broadening our knowledge about the adequacy of the tourist offer in Serbia in the tourism segment which is the subject of study of the paper.

  6. Effectiveness of Basic Safety Training among Cruise Line Students

    Directory of Open Access Journals (Sweden)

    Dr. Dexter R. Buted

    2014-06-01

    Full Text Available – This study aimed to assess the basic safety training among cruise line students in Lyceum of the Philippines University. Specifically, it sought to identify the effectiveness of basic safety training in terms of reaction, behaviour, learning and results; the problems encountered by the respondents’ during their basic safety training; and lastly, propose a program to enhance the BST program among cruise line operation students. The study made use of descriptive method and using the Kirkpatrick Evaluation Training Model. The respondents agreed that the basic safety training programs for cruise line operations students are effective since it enhances their learning and behaviour. The results and reaction coming from the students who underwent basic safety training implies that they are trained and helped by the program. They sometimes experienced problems during their training. However students believed that the institution were proficient in providing programs and have already foreseen the problems that might occur and provided contingency plan for each. A program is proposed to enhance the basic safety training of LPUBatangas. Continuous training may be done for reinforcement of each students and level of organization so that the cruise line students will be more competitive and be more productive. Strict compliance of the cruise line students to the training program may be implemented.

  7. Active explosion barrier performance against methane and coal dust explosions

    Institute of Scientific and Technical Information of China (English)

    J J L du Plessis

    2015-01-01

    Preventing the propagation of methane or coal dust explosions through the use of active explosion-suppression systems remains one of the most underutilised explosion controls in underground coal mines. As part of the effort to develop better technologies to safeguard mines, the use of active barrier systems was investigated at Kloppersbos in South Africa. The system is designed to meet the requirements of the European Standard (EN 14591-4 2007) as well as the Mine Safety Standardisation in the Ministry of Coal Industry, Coal Industrial l Standard of the Peoples Republic of China (MT 694-1997). From the tests conducted, it can be concluded that the ExploSpot System was successful in stopping flame propagation for both methane and methane and coal dust hybrid explosions when ammonium phosphate powder was used as the suppression material. The use of this barrier will provide coal mine management with an additional explosion control close to the point of ignition and may find application within longwall faces further protecting mines against the risk of an explosion propagating throughout a mine.

  8. 32 CFR 234.9 - Explosives.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 2 2010-07-01 2010-07-01 false Explosives. 234.9 Section 234.9 National Defense... PENTAGON RESERVATION § 234.9 Explosives. (a) Using, possessing, storing, or transporting explosives, blasting agents or explosive materials is prohibited, except pursuant to the terms and conditions of a...

  9. 36 CFR 1002.38 - Explosives.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false Explosives. 1002.38 Section... RECREATION § 1002.38 Explosives. (a) Using, possessing, storing, or transporting explosives, blasting agents or explosive materials is prohibited, except pursuant to the terms and conditions of a permit. When...

  10. 36 CFR 2.38 - Explosives.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 1 2010-07-01 2010-07-01 false Explosives. 2.38 Section 2.38... PROTECTION, PUBLIC USE AND RECREATION § 2.38 Explosives. (a) Using, possessing, storing, or transporting explosives, blasting agents or explosive materials is prohibited, except pursuant to the terms and conditions...

  11. 32 CFR 1903.9 - Explosives.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Explosives. 1903.9 Section 1903.9 National... INSTALLATIONS § 1903.9 Explosives. (a) Using, possessing, storing, or transporting explosives, blasting agents, ammunition or explosive materials is prohibited on any Agency installation, except as authorized by the...

  12. [Causation, prevention and treatment of dust explosion].

    Science.gov (United States)

    Dong, Maolong; Jia, Wenbin; Wang, Hongtao; Han, Fei; Li, Xiao-Qiang; Hu, Dahai

    2014-10-01

    With the development of industrial technology, dust explosion accidents have increased, causing serious losses of people's lives and property. With the development of economy, we should lay further emphasis on causation, prevention, and treatment of dust explosion. This article summarizes the background, mechanism, prevention, and treatment of dust explosion, which may provide some professional knowledge and reference for the treatment of dust explosion.

  13. Methods of Raising Funds for Purchasing of New Cruise Ships by International Corporations

    Directory of Open Access Journals (Sweden)

    Kizielewicz Joanna

    2017-06-01

    Full Text Available The world’s cruise corporations regularly purchase large, luxurious cruise ships. In accordance with the Cruise Line International Association, 33 new ocean cruise ships will be available on the market by 2020. These types of capital expenditures are associated with large financial outlays of up to $ 1 billion. The leading cruise corporations are not able to finance purchases of new units with their own resources and therefore look for different solutions. Available publications focus mainly on issues related to purchasing cargo ships, not cruise ships. The objective of the article is to identify sources of funding of new cruise ships. Our analysis identifies the average capital expenditure associated with purchasing new cruise ships and factors that influence it. The most popular methods for raising such capital are also provided. Our research methodology relies on data exploration method, a desk research method and comparative analysis.

  14. FRV Deleware II cruise, 30 June to 7 July 1978. Data report

    Energy Technology Data Exchange (ETDEWEB)

    Behrens, W.; von Bock, K. (eds.)

    1982-05-01

    This was the last of three companion cruises designed to provide broad-scale coverage of seasonal shelf conditions occurring between the April and October investigations undertaken aboard ATLANTIS II cruises 99 and 104.

  15. Explosive welding finds uses offshore

    Energy Technology Data Exchange (ETDEWEB)

    1984-02-01

    This article discusses an explosive welding procedure for pipeline repair. Unlike fusion welding, explosive welding does not leave a brittle area behind and will stop axial or longitudinal cracking of a pipeline. The metals are joined by cold impact pressure, which actually liquifies the metal at the point of impact. In explosive welding, the force of the circular explosion drives the two metals together with such an impact that a bonded wave pattern is set up. All surface defects and oxides are pushed ahead of the collision front, resulting in a metal-to-metal seal. Two techniques are reviewed: the Exploweld method and the Norabel method. Both methods do not reduce or expand the internal diameter of the welded surface.

  16. Detonation probabilities of high explosives

    Energy Technology Data Exchange (ETDEWEB)

    Eisenhawer, S.W.; Bott, T.F.; Bement, T.R.

    1995-07-01

    The probability of a high explosive violent reaction (HEVR) following various events is an extremely important aspect of estimating accident-sequence frequency for nuclear weapons dismantlement. In this paper, we describe the development of response curves for insults to PBX 9404, a conventional high-performance explosive used in US weapons. The insults during dismantlement include drops of high explosive (HE), strikes of tools and components on HE, and abrasion of the explosive. In the case of drops, we combine available test data on HEVRs and the results of flooring certification tests to estimate the HEVR probability. For other insults, it was necessary to use expert opinion. We describe the expert solicitation process and the methods used to consolidate the responses. The HEVR probabilities obtained from both approaches are compared.

  17. Explosive Blast Neuropathology and Seizures

    Directory of Open Access Journals (Sweden)

    S. Krisztian eKovacs

    2014-04-01

    Full Text Available Traumatic brain injury (TBI due to explosive blast exposure is a leading combat casualty. It is also implicated as a key contributor to war related mental health diseases. A clinically important consequence of all types of TBI is a high risk for development of seizures and epilepsy. Seizures have been reported in patients who have suffered blast injuries in the Global War on Terror but the exact prevalence is unknown. The occurrence of seizures supports the contention that explosive blast leads to both cellular and structural brain pathology. Unfortunately, the exact mechanism by which explosions cause brain injury is unclear, which complicates development of meaningful therapies and mitigation strategies. To help improve understanding, detailed neuropathological analysis is needed. For this, histopathological techniques are extremely valuable and indispensable. In the following we will review the pathological results, including those from immunohistochemical and special staining approaches, from recent preclinical explosive blast studies.

  18. Suppression of stratified explosive interactions

    Energy Technology Data Exchange (ETDEWEB)

    Meeks, M.K.; Shamoun, B.I.; Bonazza, R.; Corradini, M.L. [Wisconsin Univ., Madison, WI (United States). Dept. of Nuclear Engineering and Engineering Physics

    1998-01-01

    Stratified Fuel-Coolant Interaction (FCI) experiments with Refrigerant-134a and water were performed in a large-scale system. Air was uniformly injected into the coolant pool to establish a pre-existing void which could suppress the explosion. Two competing effects due to the variation of the air flow rate seem to influence the intensity of the explosion in this geometrical configuration. At low flow rates, although the injected air increases the void fraction, the concurrent agitation and mixing increases the intensity of the interaction. At higher flow rates, the increase in void fraction tends to attenuate the propagated pressure wave generated by the explosion. Experimental results show a complete suppression of the vapor explosion at high rates of air injection, corresponding to an average void fraction of larger than 30%. (author)

  19. Simulation Analysis of Indoor Gas Explosion Damage

    Institute of Scientific and Technical Information of China (English)

    钱新明; 陈林顺; 冯长根

    2003-01-01

    The influence factors and process of indoor gas explosion are studied with AutoReaGas explosion simulator. The result shows that venting pressure has great influence on the indoor gas explosion damage. The higher the venting pressure is, the more serious the hazard consequence will be. The ignition location has also evident effect on the gas explosion damage. The explosion static overpressure would not cause major injury to person and serious damage to structure in the case of low venting pressure (lower than 2 kPa). The high temperature combustion after the explosion is the major factor to person injury in indoor gas explosion accidents.

  20. Zero-sum versus nonzero-sum differential game approach to missile guidance

    NARCIS (Netherlands)

    Trottemant, E.J.; Vermeulen, A.; Weiss, M.

    2007-01-01

    New developments and improvements on evasive missiles have led to a situation in which the current missile guidance laws have difficulties to intercept maneuvering targets. The nature of the interception problem with 2 non-cooperative players leads to the field of differential games. Recent studies

  1. Discussion of the target-missile control scheme with supersonic speed at minimum altitude

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    An antiship missile with supersonic speed at minimum altitude is an effective weapon to break through a defense line. The former Soviet Union was a leader in this field since it had developed several kinds of antiship missiles which obtained supersonic speed at minimum altitudes. To counter this kind of missile,many countries have been developing corresponding antimissiles. For the purpose of verifing the antimissile missile's effectiveness in intercepting antiship missiles, a target-missile is needed. A target-missle is cheaper and can imitate the main characteristics of antiship missiles with supersonic speed at minimum altitude. In this paper, the control scheme of a target missile flying with supersonic speed at minimum altitude is studied. To counter the problem of hedgehopping over the sea, a control scheme utilizing a SINS + altimeter was proposed.In this scheme, both the quick response ability of altitude control and the anti-jamming problem were considered. A simulation experiment shows that when an integrated altitude control system is used, the anti-disturbance ability of the integrated altitude is good and the response speed of altitude control system can be dramatically improved.

  2. 48 CFR 225.7016 - Restriction on Ballistic Missile Defense research, development, test, and evaluation.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Restriction on Ballistic Missile Defense research, development, test, and evaluation. 225.7016 Section 225.7016 Federal Acquisition... Acquisition 225.7016 Restriction on Ballistic Missile Defense research, development, test, and evaluation. ...

  3. A modular ducted rocket missile model for threat and performance assessment

    NARCIS (Netherlands)

    Mayer, A.E.H.J.; Halswijk, W.H.C.; Komduur, H.J.; Lauzon, M.; Stowe, R.A.

    2005-01-01

    A model was developed to predict the thrust of throttled ramjet propelled missiles. The model is called DRCORE and fulfils the growing need to predict the performance of air breathing missiles. Each subsystem of the propulsion unit of this model is coded by using engineering formulae and enables the

  4. Acute Gastroenteritis on Cruise Ships - United States, 2008-2014.

    Science.gov (United States)

    Freeland, Amy L; Vaughan, George H; Banerjee, Shailendra N

    2016-01-15

    From 1990 to 2004, the reported rates of diarrheal disease (three or more loose stools or a greater than normal frequency in a 24-hour period) on cruise ships decreased 2.4%, from 29.2 cases per 100,000 travel days to 28.5 cases (1,2). Increased rates of acute gastroenteritis illness (diarrhea or vomiting that is associated with loose stools, bloody stools, abdominal cramps, headache, muscle aches, or fever) occurred in years that novel strains of norovirus, the most common etiologic agent in cruise ship outbreaks, emerged (3). To determine recent rates of acute gastroenteritis on cruise ships, CDC analyzed combined data for the period 2008-2014 that were submitted by cruise ships sailing in U.S. jurisdiction (defined as passenger vessels carrying ≥13 passengers and within 15 days of arriving in the United States) (4). CDC also reviewed laboratory data to ascertain the causes of acute gastroenteritis outbreaks and examined trends over time. During the study period, the rates of acute gastroenteritis per 100,000 travel days decreased among passengers from 27.2 cases in 2008 to 22.3 in 2014. Rates for crew members remained essentially unchanged (21.3 cases in 2008 and 21.6 in 2014). However, the rate of acute gastroenteritis was significantly higher in 2012 than in 2011 or 2013 for both passengers and crew members, likely related to the emergence of a novel strain of norovirus, GII.4 Sydney (5). During 2008-2014, a total of 133 cruise ship acute gastroenteritis outbreaks were reported, 95 (71%) of which had specimens available for testing. Among these, 92 (97%) were caused by norovirus, and among 80 norovirus specimens for which a genotype was identified, 59 (73.8%) were GII.4 strains. Cruise ship travelers experiencing diarrhea or vomiting should report to the ship medical center promptly so that symptoms can be assessed, proper treatment provided, and control measures implemented.

  5. Furball Explosive Breakout Test

    Energy Technology Data Exchange (ETDEWEB)

    Carroll, Joshua David [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2015-08-05

    For more than 30 years the Onionskin test has been the primary way to study the surface breakout of a detonation wave. Currently the Onionskin test allows for only a small, one dimensional, slice of the explosive in question to be observed. Asymmetrical features are not observable with the Onionskin test and its one dimensional view. As a result, in 2011, preliminary designs for the Hairball and Furball were developed then tested. The Hairball used shorting pins connected to an oscilloscope to determine the arrival time at 24 discrete points. This limited number of data points, caused by the limited number of oscilloscope channels, ultimately led to the Hairball’s demise. Following this, the Furball was developed to increase the number of data points collected. Instead of shorting pins the Furball uses fiber optics imaged by a streak camera to determine the detonation wave arrival time for each point. The original design was able to capture the detonation wave’s arrival time at 205 discrete points with the ability to increase the number of data points if necessary.

  6. Disaster management following explosion.

    Science.gov (United States)

    Sharma, B R

    2008-01-01

    Explosions and bombings remain the most common deliberate cause of disasters involving large numbers of casualties, especially as instruments of terrorism. These attacks are virtually always directed against the untrained and unsuspecting civilian population. Unlike the military, civilians are poorly equipped or prepared to handle the severe emotional, logistical, and medical burdens of a sudden large casualty load, and thus are completely vulnerable to terrorist aims. To address the problem to the maximum benefit of mass disaster victims, we must develop collective forethought and a broad-based consensus on triage and these decisions must reach beyond the hospital emergency department. It needs to be realized that physicians should never be placed in a position of individually deciding to deny treatment to patients without the guidance of a policy or protocol. Emergency physicians, however, may easily find themselves in a situation in which the demand for resources clearly exceeds supply and for this reason, emergency care providers, personnel, hospital administrators, religious leaders, and medical ethics committees need to engage in bioethical decision-making.

  7. Numerical simulation of gas explosions

    Energy Technology Data Exchange (ETDEWEB)

    Van den Berg, A.C.; Van Wingerden, J.M.; Verhagen, T.L.

    1989-08-01

    Recent developments in numerical fluid dynamics and computer technology enable detailed simulation of gas explosions. Prins Maurits Laboratory TNO of the Netherlands Organization for Applied Scientific Research developed the necessary software. This software is a useful tool to develop and evaluate explosion safe installations. One of the possible applications is the design of save offshore rigs. (f.i. to prevent Piper Alpha disasters). The two-dimensional blast model is described and an example is given. 4 figs., 6 refs.

  8. System for analysis of explosives

    Science.gov (United States)

    Haas, Jeffrey S [San Ramon, CA

    2010-06-29

    A system for analysis of explosives. Samples are spotted on a thin layer chromatography plate. Multi-component explosives standards are spotted on the thin layer chromatography plate. The thin layer chromatography plate is dipped in a solvent mixture and chromatography is allowed to proceed. The thin layer chromatography plate is dipped in reagent 1. The thin layer chromatography plate is heated. The thin layer chromatography plate is dipped in reagent 2.

  9. Lidar Detection of Explosives Traces

    Directory of Open Access Journals (Sweden)

    Bobrovnikov Sergei M.

    2016-01-01

    Full Text Available The possibility of remote detection of traces of explosives using laser fragmentation/laser-induced fluorescence (LF/LIF is studied. Experimental data on the remote visualization of traces of trinitrotoluene (TNT, hexogen (RDX, trotyl-hexogen (Comp B, octogen (HMX, and tetryl with a scanning lidar detector of traces of nitrogen-containing explosives at a distance of 5 m are presented.

  10. Intraperitoneal explosion following gastric perforation.

    Science.gov (United States)

    Mansfield, Scott K; Borrowdale, Roderick

    2014-04-01

    The object of this study is to report a rare case of explosion during laparotomy where diathermy ignited intraperitoneal gas from a spontaneous stomach perforation. Fortunately, the patient survived but the surgeon experienced a finger burn. A literature review demonstrates other examples of intraoperative explosion where gastrointestinal gases were the fuel source. Lessons learned from these cases provide recommendations to prevent this potentially lethal event from occurring.

  11. Making sense of ballistic missile defense: an assessment of concepts and systems for U.S. boost-phase missile defense in comparison to other alternatives

    National Research Council Canada - National Science Library

    Division on Engineering and Physical Sciences; National Research Council; Naval Studies Board

    2012-01-01

    "The Committee on an Assessment of Concepts and Systems for U.S. Boost-Phase Missile Defense in Comparison to Other Alternatives set forth to provide an assessment of the feasibility, practicality, and affordability of U.S...

  12. Missile Sites, Former missile field for Whiteman., Published in 2005, 1:12000 (1in=1000ft) scale, Whiteman Air Force Base.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Missile Sites dataset, published at 1:12000 (1in=1000ft) scale, was produced all or in part from Field Survey/GPS information as of 2005. It is described as...

  13. An Assessment of Fecal Coliform Bacteria in Cruise Ship Wastewater Discharge

    Science.gov (United States)

    2003-09-01

    An Assessment of Fecal Coliform Bacteria in Cruise Ship Wastewater Discharge Charles D. McGee Orange County Sanitation District* 10844 Ellis...Alaska Cruise Ship Initiative in 1999. This initiative required investigation, understanding and oversight of discharges from large cruise ships...into the waters of Alaska. As part of the overall assessment of impacts from cruise ship waste discharges on the environment, a Science Advisory

  14. Report on oceanographic cruises and data stations 2001

    OpenAIRE

    Gjertsen, Karen

    2002-01-01

    The present report shows the course tracks and stations occupied by the research vessels "G.O. Sars", "Johan Hjort", "Michael Sars" and "G.M. Dannevig" during 2001. The first tables shows the cruise number and the periods for each cruise. The next page shows the standard sections worked out by the Institute of Marine Research and the position of the fixed stations in the coast water. The following tables (page 2 and 3) indicate when the standard sections are worked out, and sho...

  15. Simulation Analysis of Wave Effect on Exceeding Water Gesture and Load of Submarine Launched Missile

    Directory of Open Access Journals (Sweden)

    Ke Zhao

    2014-02-01

    Full Text Available In this study, we have a research on wave action on the submarine launched missile water trajectory and gesture angles during the process between launch and exit from water. Infinite water depth plane wave was used as the wave model, mathematics models of missile exceeding water under different wave conditions were established based on ideal potential flow theory. The flow field velocity potential was obtained by solving the Laplace equation, thus can obtain missile surface pressure. Considering free surface effects, simple Green’s function was introduced to solve boundary value problems. Three-dimensional Fortran program and finite software ABAQUS were combined to complete the fluid-structure interaction simulation. The rules that wave level and phases effects on submarine-launched missile were finally obtained, which shows wave affect cannot be neglected. Simulation methods and results of this study have a certain reference value for the submarine-launched missile launching.

  16. RUPTURE OF THIN METAL TUBES BY NORMAL AND OBLIQUE IMPACT OF BLUNT CONICALNOSED MISSILES: EXPERIMENTS

    Institute of Scientific and Technical Information of China (English)

    Mu Jianchun; Zhang Tieguang

    2000-01-01

    Impact tests at both normal and oblique angles of incidence were .conducted on thin mild tubes using a moderate size of 90° conical-nosed missiles. Tne minimum impact speed that generated cracks through the thickness of the wall, termed the speed for rupture, was measured, and various modes of rupture were identified. For a thin tube hit by a missile at a normal angle of obliquity at the speed for rupture, the contact region spreads across the nose of the missile, and the transverse shear deformation is predominant in the final failure process. If the angle of obliquity is 30°, the missile pierces a hole through the wall of the tube. At the speed for rupture, the kinetic energy of the missile for oblique angle 30° is only about 45 % that required for plugging at a normal angle of obliquity.

  17. Samplelist of the Cicar (Cooperative Investigations in the Caribbean and Adjacent Regions) cruises 1970 – 1972

    NARCIS (Netherlands)

    Spoel, van der S.; Koperdraat, M.J.

    1974-01-01

    The Royal Dutch Navy participated in the cruises of the Cooperative Investigations in the Caribbean and Adjacent Regions (Cicar) from 1970 up to 1973 with H.Nl.M.S. “Luymes” and made 39 cruises. For general information on these cruises and preliminary results one is referred to the titles in the lis

  18. Ecological considerations in constructing marine infrastructure: The Falmouth cruise terminal development, Jamaica

    NARCIS (Netherlands)

    Korbee, D.; Mol, A.P.J.; Tatenhove, van J.P.M.

    2015-01-01

    Cruise tourism is an important and expanding global industry. The growth of this sector,coupled with the continuous development of larger cruise ships, creates demands for new marine infrastructure. The development of these marine infrastructures takes place at the intersection of global cruise tour

  19. Ecological considerations in constructing marine infrastructure: The Falmouth cruise terminal development, Jamaica

    NARCIS (Netherlands)

    Korbee, D.; Mol, A.P.J.; Tatenhove, van J.P.M.

    2015-01-01

    Cruise tourism is an important and expanding global industry. The growth of this sector,coupled with the continuous development of larger cruise ships, creates demands for new marine infrastructure. The development of these marine infrastructures takes place at the intersection of global cruise tour

  20. Ecological considerations in constructing marine infrastructure: The Falmouth cruise terminal development, Jamaica

    NARCIS (Netherlands)

    Korbee, D.; Mol, A.P.J.; Tatenhove, van J.P.M.

    2015-01-01

    Cruise tourism is an important and expanding global industry. The growth of this sector,coupled with the continuous development of larger cruise ships, creates demands for new marine infrastructure. The development of these marine infrastructures takes place at the intersection of global cruise

  1. 77 FR 65621 - Security Zone; Cruise Ships, Santa Barbara Harbor, Santa Barbara, CA

    Science.gov (United States)

    2012-10-30

    ... waters from the surface to the sea floor within a 100-yard radius of any cruise ship located within 3... prevent the catastrophic impact that a terrorist attack against a cruise ship would have on the public... to the sea floor within a 100-yard radius of any cruise ship which is located within 3 nautical...

  2. 77 FR 36955 - Security Zone; Cruise Ships, Santa Barbara Harbor, Santa Barbara, CA

    Science.gov (United States)

    2012-06-20

    ... cruise ship located within 3 nautical miles of the Santa Barbara Harbor Breakwater Light (Light List... impact a terrorist attack against a cruise ship would have on the public interest, the Coast Guard... sea floor within a 100-yard radius of any cruise ship which is located within 3 nautical miles...

  3. 76 FR 4833 - Security Zones; Cruise Ships, Port of San Diego, CA

    Science.gov (United States)

    2011-01-27

    ... waters within a 100 yard radius around any cruise ship that is located within the San Diego port area... to provide for the safety of the cruise ship, vessels, and users of the waterway. Entry into these... floor, within a 100 yard radius around any cruise ship that is within the San Diego port area inside...

  4. 76 FR 15216 - Security Zones; Cruise Ships, Port of San Diego, CA

    Science.gov (United States)

    2011-03-21

    ... any cruise ship that is located within the San Diego port area landward of the sea buoys bounding the... provide for the safety of the cruise ship, vessels, and users of the waterway. Entry into these security... any cruise ship that is within the San Diego port area inside the sea buoys bounding the Port of...

  5. 76 FR 50710 - Security Zones; Cruise Ships, San Pedro Bay, CA

    Science.gov (United States)

    2011-08-16

    ... radius around any cruise ship that is located within the San Pedro Bay port area landward of the sea... the safety of the cruise ship, vessels, and users of the waterway. Entry into these security zones... the sea floor, within a 100-yard radius around any cruise ship in the following locations is...

  6. 77 FR 1025 - Security Zones; Cruise Ships, San Pedro Bay, CA

    Science.gov (United States)

    2012-01-09

    ... zones to encompass only navigable waters within a 100-yard radius around any cruise ship that is located... necessary to provide for the safety of the cruise ship, vessels, and users of the waterway. Entry into these..., within a 100 yard radius around any cruise ship that is within the San Pedro Bay port area inside the...

  7. Ballistic Missile Defense System (BMDS) Programmatic Environmental Impact Statement

    Science.gov (United States)

    2007-01-01

    for decommissioning the BMDS to prot(lct the Uruted ~tatoo lU.~.J . ns depbyed forces . friends. and aUlas hom b~Uistic missile throats. The...intcr~contincmal balh:. tic 7) The President would, m reaffirm the entire L’l’- de\\’cl<I•Pmcn:, human rigl:ts ~;caic. leader the ratitlcatlon...aspi."Ct’< oft he Balli~ tic Miss1k DetCnsc (BMD) pwgrarn. Acid rain; The MDA ihcl:·noti..’S i:1 the ?EIS the pn:.sibility cfa..:id rain cuuseC

  8. Reserve lithium-thionyl chloride battery for missile applications

    Science.gov (United States)

    Planchat, J. P.; Descroix, J. P.; Sarre, G.

    A comparative performance study has been conducted for silver-zinc, thionyl chloride, and thermal batteries designed for such missile applications as ICBM guidance system power supplies. Attention is given to each of the three candidates' conformity to requirements concerning mechanical configuration, electrochemical design, electrolyte reservoir, external case, and gas generator. The silver-zinc and Li-SOCl2 candidates employ similar cell configurations and yield comparable performance. The thermal battery is found to be incapable of meeting battery case temperature-related requirements.

  9. Launch Stabilisation System for Vertical Launch of a Missile

    Directory of Open Access Journals (Sweden)

    K. Sreekumar

    2005-07-01

    Full Text Available The launch platform stabilisation control system is a roll-pitch stabilised platform for the vertical launch of a missile from a naval ship. Stabilisation of the launch platform is achievedwith the help of embedded controllers and electro-hydraulic servo control system. The launch platform is stabilised wrt true horizontal with a 2-axis (roll and pitch stabilisation systemconsisting of a gimbal and a set of three high-pressure servo hydraulic actuators. The control system uses rate gyro and tilt sensor feedbacks for stabilising the platform. This paper outlines the details of the launch platform stabilisation control system, results of digital simulation, and the performance during sea trials.

  10. Ballistic missile precession frequency extraction by spectrogram's texture

    Science.gov (United States)

    Wu, Longlong; Xu, Shiyou; Li, Gang; Chen, Zengping

    2013-10-01

    In order to extract precession frequency, an crucial parameter in ballistic target recognition, which reflected the kinematical characteristics as well as structural and mass distribution features, we developed a dynamic RCS signal model for a conical ballistic missile warhead, with a log-norm multiplicative noise, substituting the familiar additive noise, derived formulas of micro-Doppler induced by precession motion, and analyzed time-varying micro-Doppler features utilizing time-frequency transforms, extracted precession frequency by measuring the spectrogram's texture, verified them by computer simulation studies. Simulation demonstrates the excellent performance of the method proposed in extracting the precession frequency, especially in the case of low SNR.

  11. Thermal Battery As A Power Sources In Guided Missiles

    Directory of Open Access Journals (Sweden)

    S. S. Singh

    1973-10-01

    Full Text Available The battery based on low melting eutectic salt mixture electrolyte is thermally activated by raising the temperature of the electrolyte to its melting point. The battery is capable of discharging at very high rates for short duration. The battery employs a combination of elements with low electronegativity and capable of giving higher electrode potentials such as Ca or Mg as anode, a wide variety of eutectic salt electrolytes and various oxides, sulphates, silicates, phosphates, chromates as cathode depolarizers. Only those thermally activated systems which find application as potential power sources in guided missiles are reviewed.

  12. Renewable Energy Opportunities at White Sands Missile Range, New Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Chvala, William D.; Solana, Amy E.; States, Jennifer C.; Warwick, William M.; Weimar, Mark R.; Dixon, Douglas R.

    2008-09-01

    The document provides an overview of renewable resource potential at White Sands Missile Range (WSMR) based primarily upon analysis of secondary data sources supplemented with limited on-site evaluations. The effort was funded by the U.S. Army Installation Management Command (IMCOM) as follow-on to the 2005 DoD Renewable Energy Assessment. This effort focuses on grid-connected generation of electricity from renewable energy sources and also ground source heat pumps (GSHPs) for heating and cooling buildings, as directed by IMCOM.

  13. Minimum Ballistic Factor Problem of Slender Axial Symmetric Missiles

    Directory of Open Access Journals (Sweden)

    V. B. Tawakley

    1979-01-01

    Full Text Available The problem of determining the geometry of slender, axisymmetric missiles of minimum ballistic factor in hypersonic flow has been solved via the calculus of variations under the assumptions that the flow is Newtonian and the surface averaged skin-friction coefficient is constant. The study has been made for conditions of given length and diameter, given diameter and surfacearea, and given surface area and length. The earlier investigations/sup 8/ where only regular shapes were determined has been extended to cover those class of bodies which consist of regular shapes followed or preceded by zero slope shapes.

  14. Molecular Outflows: Explosive versus Protostellar

    Science.gov (United States)

    Zapata, Luis A.; Schmid-Burgk, Johannes; Rodríguez, Luis F.; Palau, Aina; Loinard, Laurent

    2017-02-01

    With the recent recognition of a second, distinctive class of molecular outflows, namely the explosive ones not directly connected to the accretion–ejection process in star formation, a juxtaposition of the morphological and kinematic properties of both classes is warranted. By applying the same method used in Zapata et al., and using 12CO(J = 2-1) archival data from the Submillimeter Array, we contrast two well-known explosive objects, Orion KL and DR21, to HH 211 and DG Tau B, two flows representative of classical low-mass protostellar outflows. At the moment, there are only two well-established cases of explosive outflows, but with the full availability of ALMA we expect that more examples will be found in the near future. The main results are the largely different spatial distributions of the explosive flows, consisting of numerous narrow straight filament-like ejections with different orientations and in almost an isotropic configuration, the redshifted with respect to the blueshifted components of the flows (maximally separated in protostellar, largely overlapping in explosive outflows), the very-well-defined Hubble flow-like increase of velocity with distance from the origin in the explosive filaments versus the mostly non-organized CO velocity field in protostellar objects, and huge inequalities in mass, momentum, and energy of the two classes, at least for the case of low-mass flows. Finally, all the molecular filaments in the explosive outflows point back to approximately a central position (i.e., the place where its “exciting source” was located), contrary to the bulk of the molecular material within the protostellar outflows.

  15. THE INFLUENCE OF BARRIERS ON FLAME AND EXPLOSION WAVE IN GAS EXPLOSION

    Institute of Scientific and Technical Information of China (English)

    林柏泉; 周世宁; 张仁贵

    1998-01-01

    This paper researches into the influence of barriers on flame and explosion wave in gasexplosion on the basis of experiment. The result shows that the barrier is very important to thetransmission of flame and explosion wave in gas explosion. When there are barriers, the speed oftransmission would be very fast and shock wave will appear in gas explosion, which would in-crease gas explosion power. The result of research is very important to prevent gas explosion anddecrease the power of it.

  16. 78 FR 51728 - Fees for Sanitation Inspections of Cruise Ships

    Science.gov (United States)

    2013-08-21

    ... Prevention. Appendix A Size/Cost Factors Used to Determine Inspection Fees Impacts Approximate Vessel size... HUMAN SERVICES Centers for Disease Control and Prevention Fees for Sanitation Inspections of Cruise Ships AGENCY: Centers for Disease Control and Prevention (CDC), Department of Health and Human Services...

  17. 77 FR 12843 - Fees for Sanitation Inspections of Cruise Ships

    Science.gov (United States)

    2012-03-02

    ... Prevention. Appendix A ] Size/Cost Factor Approximate cost per GRT Vessel size GRT \\1\\ (in U.S. dollars... HUMAN SERVICES Centers for Disease Control and Prevention Fees for Sanitation Inspections of Cruise Ships AGENCY: Centers for Disease Control and Prevention (CDC), Department of Health and Human Services...

  18. The potential of Connecterd Cruise Control in the Netherlands

    NARCIS (Netherlands)

    Klunder, G.A.; Jonkers, E.; Woldeab, Z.T.

    2013-01-01

    This paper presents the in-car advisory system Connected Cruise Control. The system gives advice – which is determined in a central back office based on the traffic state – to the driver, in order to prevent or solve suboptimal traffic flow conditions. The system aims at optimal lane distribution in

  19. Learning to Work on a Cruise Ship: Accounts from Bali

    Science.gov (United States)

    Artini, Luh Putu; Nilan, Pam

    2014-01-01

    This article looks at motivations and both formal and informal learning contexts for well-educated young Balinese from poorer areas who enrol in cruise ship training colleges. The major motivations were getting a high income and helping the family. While basic hospitality and tourism skills are acquired, trainees also named other capacities such…

  20. Contact infection of infectious disease onboard a cruise ship

    Science.gov (United States)

    Zhang, Nan; Miao, Ruosong; Huang, Hong; Chan, Emily Y. Y.

    2016-12-01

    Cruise tourism has become more popular. Long-term personal contact, complex population flows, a lack of medical care facilities, and defective infrastructure aboard most cruise ships is likely to result in the ship becoming an incubator for infectious diseases. In this paper, we use a cruise ship as a research scenario. Taking into consideration personal behavior, the nature and transfer route of the virus across different surfaces, virus reproduction, and disinfection, we studied contact infection of infectious disease on a cruise ship. Using gastroenteritis caused by the norovirus as an example, we analyzed the characteristics of infectious disease propagation based on simulation results under different conditions. We found hand washing are the most important factors affecting virus propagation and passenger infection. It also decides either the total number of virus microorganisms or the virus distribution in different functional areas. The transfer rate between different surfaces is a key factor influencing the concentricity of the virus. A high transfer rate leads to high concentricity. In addition, the risk of getting infected is effectively reduced when the disinfection frequency is above a certain threshold. The efficiency of disinfection of functional areas is determined by total virus number and total contact times of surfaces.

  1. Cooperative adaptive cruise control: An artificial potential field approach

    NARCIS (Netherlands)

    Semsar-Kazerooni, E.; Verhaegh, J.; Ploeg, J.; Alirezaei, M.

    2016-01-01

    In this paper, in addition to the main functionality of vehicle following, cooperative adaptive cruise control (CACC) is enabled with additional features of gap closing and collision avoidance. Due to its nonlinear nature, a control objective such as collision avoidance, cannot be addressed using a

  2. Field Report from the Nalunaq Cruise March/April 2001

    DEFF Research Database (Denmark)

    Asmund, G.

    The purpose of the cruise was to collect environmental baseline samples in the Saqqaa Fjord outside of the Kirkespir Valley in South Greenland, where a gold mine is planed. Such a study should be performed in three different years during the same annual period in order to assess satisfying...

  3. Energy and exergy analysis of a cruise ship

    DEFF Research Database (Denmark)

    Baldi, Francesco; Ahlgren, Fredrik; Nguyen, Tuong-Van

    2015-01-01

    to its final use on board. To illustrate this, we perform ed an analysis of the energy and exergy flow rates of a cruise ship sailing in the Baltic Sea based on a combination of available measurements from ship operations and of mechanistic knowledge of the system . The energy analys is allows...

  4. Cruise Ships: Continuity and Change in the World System

    Directory of Open Access Journals (Sweden)

    Francisca Oyogoa

    2016-03-01

    Full Text Available Cruise ships present a useful context to study contemporary developments in globalization.  U.S.-owned cruise companies have managed to create the “ideal” context for contemporary corporations: very little government oversight of labor relations, an available pool of very cheap labor dispersed across the globe, lax environmental regulations, high profit margins, and corporate tax rates around 1%.  A typical cruise ship leaving the U.S. contains workers from 75 to 90 nationalities.  Crewmembers performing menial service work are recruited exclusively from “poor countries” in Asia, Eastern Europe, Latin America, and the Caribbean. Crewmembers typically sign 10-month contracts stipulating 10-14 hour workdays/7 days a week without vacation or sick days. There is a striking correlation between workers’ pay/status and their countries’ position within the world system.  Staff members are usually white Westerners, while crewmembers are exclusively from the global south. On cruises the legacies of imperialism and colonialism are often the basis of workers’ racialization as appropriate servants.

  5. Learning to Work on a Cruise Ship: Accounts from Bali

    Science.gov (United States)

    Artini, Luh Putu; Nilan, Pam

    2014-01-01

    This article looks at motivations and both formal and informal learning contexts for well-educated young Balinese from poorer areas who enrol in cruise ship training colleges. The major motivations were getting a high income and helping the family. While basic hospitality and tourism skills are acquired, trainees also named other capacities such…

  6. Physiological effects of Adaptive Cruise Control behaviour in real driving

    NARCIS (Netherlands)

    Brouwer, A.M.; Snelting, A.F.; Jaswa, M.; Flascher, O.; Krol, L.R.; Zander, T.O.

    2017-01-01

    We examined physiological responses to behavior of an Adaptive Cruise Control (ACC) system during real driving. ACC is an example of automating a task that used to be performed by the user. In order to preserve the link between the user and an automated system such that they work together optimally,

  7. Proceedings of the 2011 Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Wetovsky, Marvin A. [Editor; Patterson, Eileen F. [Editor; Sandoval, Marisa N. [Editor

    2011-09-13

    These proceedings contain papers prepared for the Monitoring Research Review 2011: Ground-Based Nuclear Explosion Monitoring Technologies, held 13-15 September, 2011 in Tucson, Arizona. These papers represent the combined research related to ground-based nuclear explosion monitoring funded by the National Nuclear Security Administration (NNSA), Defense Threat Reduction Agency (DTRA), Air Force Research Laboratory (AFRL), US Army Space and Missile Defense Command, Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), National Science Foundation (NSF), and other invited sponsors. The scientific objectives of the research are to improve the United States' capability to detect, locate, and identify nuclear explosions. The purpose of the meeting is to provide the sponsoring agencies, as well as potential users, an opportunity to review research accomplished during the preceding year and to discuss areas of investigation for the coming year. For the researchers, it provides a forum for the exchange of scientific information toward achieving program goals, and an opportunity to discuss results and future plans. Paper topics include: seismic regionalization and calibration; detection and location of sources; wave propagation from source to receiver; the nature of seismic sources, including mining practices; hydroacoustic, infrasound, and radionuclide methods; on-site inspection; and data processing.

  8. Proceedings of the 27th Seismic Research Review: Ground-Based Nuclear Explosion Monitoring Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Wetovsky, Marvin A. [Editor; Benson, Jody [Editor; Patterson, Eileen F. [Editor

    2005-09-20

    These proceedings contain papers prepared for the 27th Seismic Research Review: Ground-Based Nuclear Explosion Monitoring Technologies, held 20-22 September, 2005 in Rancho Mirage, California. These papers represent the combined research related to ground-based nuclear explosion monitoring funded by the National Nuclear Security Administration (NNSA), Air Force Technical Applications Center (AFTAC), Air Force Research Laboratory (AFRL), US Army Space and Missile Defense Command, and other invited sponsors. The scientific objectives of the research are to improve the United States capability to detect, locate, and identify nuclear explosions. The purpose of the meeting is to provide the sponsoring agencies, as well as potential users, an opportunity to review research accomplished during the preceding year and to discuss areas of investigation for the coming year. For the researchers, it provides a forum for the exchange of scientific information toward achieving program goals, and an opportunity to discuss results and future plans. Paper topics include: seismic regionalization and calibration; detection and location of sources; wave propagation from source to receiver; the nature of seismic sources, including mining practices; hydroacoustic, infrasound, and radionuclide methods; on-site inspection; and data processing.

  9. Proceedings of the 29th Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Wetovsky, Marvin A. [Editor; Benson, Jody [Editor; Patterson, Eileen F. [Editor

    2007-09-25

    These proceedings contain papers prepared for the 29th Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies, held 25-27 September, 2007 in Denver, Colorado. These papers represent the combined research related to ground-based nuclear explosion monitoring funded by the National Nuclear Security Administration (NNSA), Air Force Technical Applications Center (AFTAC), Air Force Research Laboratory (AFRL), US Army Space and Missile Defense Command, Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), and other invited sponsors. The scientific objectives of the research are to improve the United States capability to detect, locate, and identify nuclear explosions. The purpose of the meeting is to provide the sponsoring agencies, as well as potential users, an opportunity to review research accomplished during the preceding year and to discuss areas of investigation for the coming year. For the researchers, it provides a forum for the exchange of scientific information toward achieving program goals, and an opportunity to discuss results and future plans. Paper topics include: seismic regionalization and calibration; detection and location of sources; wave propagation from source to receiver; the nature of seismic sources, including mining practices; hydroacoustic, infrasound, and radionuclide methods; on-site inspection; and data processing.

  10. Proceedings of the 26th Seismic Research Review: Trends in Nuclear Explosion Monitoring

    Energy Technology Data Exchange (ETDEWEB)

    Chavez, Francesca C [Editor; Benson, Jody [Editor; Hanson, Stephanie [Editor; Mark, Carol [Editor; Wetovsky, Marvin A [Editor

    2004-09-21

    These proceedings contain papers prepared for the 26th Seismic Research Review: Trends in Nuclear Explosion Monitoring, held 21-23 September, 2004 in Orlando, Florida. These papers represent the combined research related to ground-based nuclear explosion monitoring funded by the National Nuclear Security Administration (NNSA), Defense Threat Reduction Agency (DTRA), Air Force Research Laboratory (AFRL), US Army Space and Missile Defense Command, and other invited sponsors. The scientific objectives of the research are to improve the United States capability to detect, locate, and identify nuclear explosions. The purpose of the meeting is to provide the sponsoring agencies, as well as potential users, an opportunity to review research accomplished during the preceding year and to discuss areas of investigation for the coming year. For the researchers, it provides a forum for the exchange of scientific information toward achieving program goals, and an opportunity to discuss results and future plans. Paper topics include: seismic regionalization and calibration; detection and location of sources; wave propagation from source to receiver; the nature of seismic sources, including mining practices; hydroacoustic, infrasound, and radionuclide methods; on-site inspection; and data processing.

  11. Proceedings of the 28th Seismic Research Review: Ground-Based Nuclear Explosion Monitoring Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Wetovsky, Marvin A. [Editor; Benson, Jody [Editor; Patterson, Eileen F. [Editor

    2006-09-19

    These proceedings contain papers prepared for the 28th Seismic Research Review: Ground-Based Nuclear Explosion Monitoring Technologies, held 19-21 September, 2006 in Orlando, Florida. These papers represent the combined research related to ground-based nuclear explosion monitoring funded by the National Nuclear Security Administration (NNSA), Air Force Technical Applications Center (AFTAC), Air Force Research Laboratory (AFRL), US Army Space and Missile Defense Command, Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), and other invited sponsors. The scientific objectives of the research are to improve the United States capability to detect, locate, and identify nuclear explosions. The purpose of the meeting is to provide the sponsoring agencies, as well as potential users, an opportunity to review research accomplished during the preceding year and to discuss areas of investigation for the coming year. For the researchers, it provides a forum for the exchange of scientific information toward achieving program goals, and an opportunity to discuss results and future plans. Paper topics include: seismic regionalization and calibration; detection and location of sources; wave propagation from source to receiver; the nature of seismic sources, including mining practices; hydroacoustic, infrasound, and radionuclide methods; on-site inspection; and data processing.

  12. Proceedings of the 30th Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring

    Energy Technology Data Exchange (ETDEWEB)

    Wetovsky, Marv A [Los Alamos National Laboratory; Aguilar-chang, Julio [Los Alamos National Laboratory; Arrowsmith, Marie [Los Alamos National Laboratory; Arrowsmith, Stephen [Los Alamos National Laboratory; Baker, Diane [Los Alamos National Laboratory; Begnaud, Michael [Los Alamos National Laboratory; Harste, Hans [Los Alamos National Laboratory; Maceira, Monica [Los Alamos National Laboratory; Patton, Howard [Los Alamos National Laboratory; Phillips, Scott [Los Alamos National Laboratory; Randall, George [Los Alamos National Laboratory; Revelle, Douglas [Los Alamos National Laboratory; Rowe, Charlotte [Los Alamos National Laboratory; Stead, Richard [Los Alamos National Laboratory; Steck, Lee [Los Alamos National Laboratory; Whitaker, Rod [Los Alamos National Laboratory; Yang, Xiaoning [Los Alamos National Laboratory

    2008-09-23

    These proceedings contain papers prepared for the 30th Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies, held 23-25 September, 2008 in Portsmouth, Virginia. These papers represent the combined research related to ground-based nuclear explosion monitoring funded by the National Nuclear Security Administration (NNSA), Air Force Technical Applications Center (AFTAC), Air Force Research Laboratory (AFRL), US Army Space and Missile Defense Command, Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), and other invited sponsors. The scientific objectives of the research are to improve the United States’ capability to detect, locate, and identify nuclear explosions. The purpose of the meeting is to provide the sponsoring agencies, as well as potential users, an opportunity to review research accomplished during the preceding year and to discuss areas of investigation for the coming year. For the researchers, it provides a forum for the exchange of scientific information toward achieving program goals, and an opportunity to discuss results and future plans. Paper topics include: seismic regionalization and calibration; detection and location of sources; wave propagation from source to receiver; the nature of seismic sources, including mining practices; hydroacoustic, infrasound, and radionuclide methods; on-site inspection; and data processing.

  13. Proceedings of the 2010 Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Wetovsky, Marvin A [Editor; Patterson, Eileen F [Editor

    2010-09-21

    These proceedings contain papers prepared for the Monitoring Research Review 2010: Ground-Based Nuclear Explosion Monitoring Technologies, held 21-23 September, 2010 in Orlando, Florida,. These papers represent the combined research related to ground-based nuclear explosion monitoring funded by the National Nuclear Security Administration (NNSA), Air Force Research Laboratory (AFRL), US Army Space and Missile Defense Command, National Science Foundation (NSF), Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), and other invited sponsors. The scientific objectives of the research are to improve the United States capability to detect, locate, and identify nuclear explosions. The purpose of the meeting is to provide the sponsoring agencies, as well as potential users, an opportunity to review research accomplished during the preceding year and to discuss areas of investigation for the coming year. For the researchers, it provides a forum for the exchange of scientific information toward achieving program goals, and an opportunity to discuss results and future plans. Paper topics include: seismic regionalization and calibration; detection and location of sources; wave propagation from source to receiver; the nature of seismic sources, including mining practices; hydroacoustic, infrasound, and radionuclide methods; on-site inspection; and data processing.

  14. Proceedings of the 2009 Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Wetovsky, Marv A [Los Alamos National Laboratory; Aguilar - Chang, Julio [Los Alamos National Laboratory; Anderson, Dale [Los Alamos National Laboratory; Arrowsmith, Marie [Los Alamos National Laboratory; Arrowsmith, Stephen [Los Alamos National Laboratory; Baker, Diane [Los Alamos National Laboratory; Begnaud, Michael [Los Alamos National Laboratory; Harste, Hans [Los Alamos National Laboratory; Maceira, Monica [Los Alamos National Laboratory; Patton, Howard [Los Alamos National Laboratory; Phillips, Scott [Los Alamos National Laboratory; Randall, George [Los Alamos National Laboratory; Rowe, Charlotte [Los Alamos National Laboratory; Stead, Richard [Los Alamos National Laboratory; Steck, Lee [Los Alamos National Laboratory; Whitaker, Rod [Los Alamos National Laboratory; Yang, Xiaoning ( David ) [Los Alamos National Laboratory

    2009-09-21

    These proceedings contain papers prepared for the Monitoring Research Review 2009: Ground -Based Nuclear Explosion Monitoring Technologies, held 21-23 September, 2009 in Tucson, Arizona,. These papers represent the combined research related to ground-based nuclear explosion monitoring funded by the National Nuclear Security Administration (NNSA), Air Force Research Laboratory (AFRL), US Army Space and Missile Defense Command, Comprehensive Test Ban Treaty Organization (CTBTO), and other invited sponsors. The scientific objectives of the research are to improve the United States’ capability to detect, locate, and identify nuclear explosions. The purpose of the meeting is to provide the sponsoring agencies, as well as potential users, an opportunity to review research accomplished during the preceding year and to discuss areas of investigation for the coming year. For the researchers, it provides a forum for the exchange of scientific information toward achieving program goals, and an opportunity to discuss results and future plans. Paper topics include: seismic regionalization and calibration; detection and location of sources; wave propagation from source to receiver; the nature of seismic sources, including mining practices; hydroacoustic, infrasound, and radionuclide methods; on-site inspection; and data processing.

  15. Proceedings of the 25th Seismic Research Review -- Nuclear Explosion Monitoring: Building the Knowledge Base

    Energy Technology Data Exchange (ETDEWEB)

    Chavez, Francesca C. [Editor; Mendius, E. Louise [Editor

    2003-09-23

    These proceedings contain papers prepared for the 25th Seismic Research Review -- Nuclear Explosion Monitoring: Building the Knowledge Base, held 23-25 September, 2003 in Tucson, Arizona. These papers represent the combined research related to ground-based nuclear explosion monitoring funded by the National Nuclear Security Administration (NNSA), Defense Threat Reduction Agency (DTRA), Air Force Research Laboratory (AFRL), US Army Space and Missile Defense Command, and other invited sponsors. The scientific objectives of the research are to improve the United States capability to detect, locate, and identify nuclear explosions. The purpose of the meeting is to provide the sponsoring agencies, as well as potential users, an opportunity to review research accomplished during the preceding year and to discuss areas of investigation for the coming year. For the researchers, it provides a forum for the exchange of scientific information toward achieving program goals, and an opportunity to discuss results and future plans. Paper topics include: seismic regionalization and calibration; detection and location of sources; wave propagation from source to receiver; the nature of seismic sources, including mining practices; hydroacoustic, infrasound, and radionuclide methods; on-site inspection; and data processing.

  16. Active infrared systems: possible roles in ballistic missile defense?

    Science.gov (United States)

    Paleologue, A.

    2006-05-01

    Active Infra-Red (IR) systems developed in the past ten years are now available for missile defense applications. The main purpose of this paper is to describe the advantages an active IR system could offer to a ballistic missile defense (BMD). The active IR system considered in this paper is a LIDAR (LIght Detection And Ranging) system. Historically, the Lincoln Laboratory in the USA began using lasers in the early 1960's. The initial applications included the development of a LIDAR system enabling the measurement of the distance between the earth and the moon in 1962. Satellite tracking using LIDAR began early in 1973. Today, technological developments, with the miniaturization of systems and increased performance levels, have enabled new ambitious projects such as the Discrimination Interceptor Technology Program (DITP) program started in 1998 and the use of LIDAR to help in the discrimination of future exo-atmospheric interceptors within the framework of BMD. The first part of this paper presents the possible contribution of LIDAR to BMD: the main roles, objectives, and strategic advantages. The second part gives a brief overview of the technological features of a generic LIDAR instrument, rapidly addressing laser sources, detectors, optics and electronics. Finally, a modeling of an IR LIDAR system, limited solely to direct detection, and an estimation of performance levels will be presented. A list of possible IR active discriminators will be then presented on the basis of the previous analysis and proposed as new constraints in the design of discrete objects.

  17. Missile-Borne SAR Raw Signal Simulation for Maneuvering Target

    Directory of Open Access Journals (Sweden)

    Weijie Xia

    2016-01-01

    Full Text Available SAR raw signal simulation under the case of maneuver and high-speed has been a challenging and urgent work recently. In this paper, a new method based on one-dimensional fast Fourier transform (1DFFT algorithm is presented for raw signal simulation of maneuvering target for missile-borne SAR. Firstly, SAR time-domain raw signal model is given and an effective Range Frequency Azimuth Time (RFAT algorithm based on 1DFFT is derived. In this algorithm, the “Stop and Go” (SaG model is adopted and the wide radar scattering characteristic of target is taken into account. Furthermore, the “Inner Pulse Motion” (IPM model is employed to deal with high-speed case. This new RFAT method can handle the maneuvering cases, high-speed cases, and bistatic radar cases, which are all possible in the missile-borne SAR. Besides, this raw signal simulation adopts the electromagnetic scattering calculation so that we do not need a scattering rate distribution map as the simulation input. Thus, the multiple electromagnetic reflections can be considered. Simulation examples prove the effectiveness of our method.

  18. Estimation filters for missile tracking with airborne laser

    Science.gov (United States)

    Clemons, T. M., III; Chang, K. C.

    2006-05-01

    This paper examines the use of various estimation filters on the highly non-linear problem of tracking a ballistic missile during boost phase from a moving airborne platform. The aircraft receives passive bearing data from an IR sensor and range data from a laser rangefinder. The aircraft is assumed to have a laser weapon system that requires highly accurate bearing information in order to keep the laser on target from a distance of 100-200 km. The tracking problem is made more difficult due to the changing acceleration of the missile, especially during stage drop-off and ignition. The Extended Kalman Filter (EKF), Unscented Kalman Filter (UKF), 'bootstrap' Particle Filter (PF), and the Gaussian Sum Particle Filter (GSPF) are explored using different values for sensor accuracy in bearing and range, and various degrees of uncertainty of the target and platform dynamic. Scenarios were created using Satellite Toolkit © for trajectories from a Southeast Asia launch with associated sensor observations. MATLAB © code modified from the ReBEL Toolkit © was used to run the EKF, UKF, PF, and GSPF sensor track filters. Mean Square Error results are given for tracking during the period when the target is in view of the radar and IR sensors. This paper provides insight into the accuracy requirements of the sensors and the suitability of the given estimators.

  19. Thermodynamic States in Explosion Fields

    Energy Technology Data Exchange (ETDEWEB)

    Kuhl, A L

    2009-10-16

    Here we investigate the thermodynamic states occurring in explosion fields from the detonation of condensed explosives in air. In typical applications, the pressure of expanded detonation products gases is modeled by a Jones-Wilkins-Lee (JWL) function: P{sub JWL} = f(v,s{sub CJ}); constants in that function are fit to cylinder test data. This function provides a specification of pressure as a function of specific volume, v, along the expansion isentrope (s = constant = s{sub CJ}) starting at the Chapman-Jouguet (CJ) state. However, the JWL function is not a fundamental equation of thermodynamics, and therefore gives an incomplete specification of states. For example, explosions inherently involve shock reflections from surfaces; this changes the entropy of the products, and in such situations the JWL function provides no information on the products states. In addition, most explosives are not oxygen balanced, so if hot detonation products mix with air, they after-burn, releasing the heat of reaction via a turbulent combustion process. This raises the temperature of explosion products cloud to the adiabatic flame temperature ({approx}3,000K). Again, the JWL function provides no information on the combustion products states.

  20. Explosion limits for combustible gases

    Institute of Scientific and Technical Information of China (English)

    TONG Min-ming; WU Guo-qing; HAO Ji-fei; DAI Xin-lian

    2009-01-01

    Combustible gases in coal mines are composed of methane, hydrogen, some multi-carbon alkane gases and other gases. Based on a numerical calculation, the explosion limits of combustible gases were studied, showing that these limits are related to the concentrations of different components in the mixture. With an increase of C4H10 and C6H14, the Lower ExplosionLimit (LEL) and Upper Explosion-Limit (UEL) of a combustible gas mixture will decrease clearly. For every 0.1% increase in C4H10 and C6H14, the LEL decreases by about 0.19% and the UEL by about 0.3%. The results also prove that, by increasing the amount of H2, the UEL of a combustible gas mixture will increase considerably. If the level of H2 increases by 0.1%, the UEL will increase by about 0.3%. However, H2 has only a small effect on the LEL of the combustible gas mixture. Our study provides a theoretical foundation for judging the explosion risk of an explosive gas mixture in mines.

  1. Explosion and explosives. Volume 32, Number 5, 1971

    Energy Technology Data Exchange (ETDEWEB)

    1976-01-01

    The following topics are discussed: CMDB propellants with high pressure exponent; the thermal decomposition of phenylnitromethane in 2-propanol; double exposed flash x-ray photographic observation on detonation of coal mining explosions; detonation of condensed multiple components about detonation characteristics of three liquid explosives; synthesis of N,N'-bis (2,4,6-trinitro-3-glycidoxyphenyl)-ethylene dinitramine; resistance characteristics of electric primer containing conductive particles; and formation of Meisenheimer's complex by adding an aqueous sodium hydroxide to the reaction product of epoxy compound with picric acid.

  2. The Quiet Explosion

    Science.gov (United States)

    2008-07-01

    A European-led team of astronomers are providing hints that a recent supernova may not be as normal as initially thought. Instead, the star that exploded is now understood to have collapsed into a black hole, producing a weak jet, typical of much more violent events, the so-called gamma-ray bursts. The object, SN 2008D, is thus probably among the weakest explosions that produce very fast moving jets. This discovery represents a crucial milestone in the understanding of the most violent phenomena observed in the Universe. Black Hole ESO PR Photo 23a/08 A Galaxy and two Supernovae These striking results, partly based on observations with ESO's Very Large Telescope, will appear tomorrow in Science Express, the online version of Science. Stars that were at birth more massive than about 8 times the mass of our Sun end their relatively short life in a cosmic, cataclysmic firework lighting up the Universe. The outcome is the formation of the densest objects that exist, neutron stars and black holes. When exploding, some of the most massive stars emit a short cry of agony, in the form of a burst of very energetic light, X- or gamma-rays. In the early afternoon (in Europe) of 9 January 2008, the NASA/STFC/ASI Swift telescope discovered serendipitously a 5-minute long burst of X-rays coming from within the spiral galaxy NGC 2770, located 90 million light-years away towards the Lynx constellation. The Swift satellite was studying a supernova that had exploded the previous year in the same galaxy, but the burst of X-rays came from another location, and was soon shown to arise from a different supernova, named SN 2008D. Researchers at the Italian National Institute for Astrophysics (INAF), the Max-Planck Institute for Astrophysics (MPA), ESO, and at various other institutions have observed the supernova at great length. The team is led by Paolo Mazzali of INAF's Padova Observatory and MPA. "What made this event very interesting," says Mazzali, "is that the X-ray signal was very

  3. Optimal dynamic detection of explosives

    Energy Technology Data Exchange (ETDEWEB)

    Moore, David Steven [Los Alamos National Laboratory; Mcgrane, Shawn D [Los Alamos National Laboratory; Greenfield, Margo T [Los Alamos National Laboratory; Scharff, R J [Los Alamos National Laboratory; Rabitz, Herschel A [PRINCETON UNIV; Roslund, J [PRINCETON UNIV

    2009-01-01

    The detection of explosives is a notoriously difficult problem, especially at stand-off distances, due to their (generally) low vapor pressure, environmental and matrix interferences, and packaging. We are exploring optimal dynamic detection to exploit the best capabilities of recent advances in laser technology and recent discoveries in optimal shaping of laser pulses for control of molecular processes to significantly enhance the standoff detection of explosives. The core of the ODD-Ex technique is the introduction of optimally shaped laser pulses to simultaneously enhance sensitivity of explosives signatures while reducing the influence of noise and the signals from background interferents in the field (increase selectivity). These goals are being addressed by operating in an optimal nonlinear fashion, typically with a single shaped laser pulse inherently containing within it coherently locked control and probe sub-pulses. With sufficient bandwidth, the technique is capable of intrinsically providing orthogonal broad spectral information for data fusion, all from a single optimal pulse.

  4. Coulomb explosion of "hot spot"

    CERN Document Server

    Oreshkin, V I; Chaikovsky, S A; Artyomov, A P

    2016-01-01

    The study presented in this paper has shown that the generation of hard x rays and high-energy ions, which are detected in pinch implosion experiments, may be associated with the Coulomb explosion of the hot spot that is formed due to the outflow of the material from the pinch cross point. During the process of material outflow, the temperature of the hot spot plasma increases, and conditions arise for the plasma electrons to become continuously accelerated. The runaway of electrons from the hot spot region results in the buildup of positive space charge in this region followed by a Coulomb explosion. The conditions for the hot spot plasma electrons to become continuously accelerated have been revealed and estimates have been obtained for the kinetic energy of the ions generated by the Coulomb explosion.

  5. Instrument safety in explosive atmospheres.

    Science.gov (United States)

    Bossert, J A

    1975-01-01

    The current "Energy Crisis" has dramatically increased our potential need for coal, the worlds most abundant fossil fuel. This will probably lead to a greater use of automation and instrumentation in the coal mining industry. The presence of methane in coal mines and in the coal itself plus the presence of coal dust, both of which can form an explosive atmosphere in air, means that the possibility of a gas or coal dust ignition must be considered when designing, purchasing and installing new equipment in this industry. In addition, many metallurgical processes involve the use of potentially explosive substances against which similar safety precautions must be taken. This paper outlines the various methods of protection currently in use and proposed for electrical instruments in explosive atmospheres, with particular emphasis on the work of the International Electrotechnical Commission.

  6. Evidence for Nearby Supernova Explosions

    CERN Document Server

    Benítez, N; Canelles, M; Benitez, Narciso; Maiz-Apellaniz, Jesus; Canelles, Matilde

    2002-01-01

    Supernova explosions are one of the most energetic--and potentially lethal--phenomena in the Universe. Scientists have speculated for decades about the possible consequences for life on Earth of a nearby supernova, but plausible candidates for such an event were lacking. Here we show that the Scorpius-Centaurus OB association, a group of young stars currently located at~130 parsecs from the Sun, has generated 20 SN explosions during the last 11 Myr, some of them probably as close as 40 pc to our planet. We find that the deposition on Earth of 60Fe atoms produced by these explosions can explain the recent measurements of an excess of this isotope in deep ocean crust samples. We propose that ~2 Myr ago, one of the SNe exploded close enough to Earth to seriously damage the ozone layer, provoking or contributing to the Pliocene-Pleistocene boundary marine extinction.

  7. Explosively Joining Dissimilar Metal Tubes.

    Science.gov (United States)

    1979-11-01

    both steel, photograph (7), and the Ni-Cu specimen, photograph (8) , showed considerable pitting corrosion in the aluminum . 4. The paint was then...for 6061 -T6 aluminum and are: collision angle 5 - 200, collision velocity 270 - 350 m/sec, with an impact pressure of at least 27 Kbar (391 Kpsi...Welded Aluminum Alloy 1 .. 5 rn-i (P0 -I Op. 2si 11 6W TABLE I Explosive2 Cladder Metal Base Metal Explosive Loading (gins/in2 6061 -T6 Al 304 SS TSE- 1004

  8. Intravesical explosion during transurethral electrosurgery.

    Science.gov (United States)

    Georgios, Kallinikas; Evangelos, Boulinakis; Helai, Habib; Ioannis, Gerzelis

    2015-05-01

    Intravesical explosion is a very rare complication of transurethral resection of prostate and transurethral resection of bladder tumour operations. In vitro studies have shown that the gases produced during the procedure could result in a blast once they are mixed with air from the atmosphere. A 79-year-old male experienced an explosion in his bladder while undergoing a transurethral resection of bladder tumour. The case is presented as well as the way that it was treated as an emergency. Precautions of such events are finally suggested.

  9. AIM-120 Advanced Medium Range Air-to-Air Missile (AMRAAM)

    Science.gov (United States)

    2015-12-01

    Selected Acquisition Report (SAR) RCS: DD-A&T(Q&A)823-185 AIM-120 Advanced Medium Range Air-to-Air Missile (AMRAAM) As of FY 2017 President’s...17, 2013 Program Information Program Name AIM-120 Advanced Medium Range Air-to-Air Missile (AMRAAM) DoD Component Air Force Joint Participants...December 2015 SAR March 23, 2016 16:04:24 UNCLASSIFIED 5 Mission and Description The Advanced Medium Range Air-to-Air Missile (AMRAAM) AIM-120

  10. Study on Missile Intelligent Fault Diagnosis System Based on Fuzzy NN Expert System

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    In order to study intelligent fault diagnosis methods based on fuzzy neural network (NN) expert systemand build up intelligent fault diagnosis for a type of mis-sile weapon system, the concrete implementation of a fuzzyNN fault diagnosis expert system is given in this paper. Based on thorough research of knowledge presentation, theintelligent fault diagnosis system is implemented with artificial intelligence for a large-scale missile weapon equipment.The method is an effective way to perform fuzzy fault diagnosis. Moreover, it provides a new way of the fault diagnosisfor large-scale missile weapon equipment.

  11. 46 CFR 188.10-25 - Explosive.

    Science.gov (United States)

    2010-10-01

    ... mixture, the primary purpose of which is to function by explosion; i.e., with substantially instantaneous release of gas and heat. Explosives are discussed in more detail in 49 CFR parts 171-179....

  12. New Source Model for Chemical Explosions

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Xiaoning [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-03-03

    With sophisticated inversion scheme, we recover characteristics of SPE explosions such as corner frequency fc and moment M0, which are used to develop a new source model for chemical explosions.

  13. Pulmonary contusion and hemothorax due to explosion

    National Research Council Canada - National Science Library

    Baeza-Herrera, Carlos; Sanjuán-Fabián, Héctor; Medellín-Sierra, Ulises Darío; Nájera-Garduño, Heladio; García-Cabello, Luis Manuel

    2006-01-01

    .... Such is the case of gunpowder explosive objects used during celebration holidays. We present a 14-year-old male who suffered a pulmonary contusion as a consequence of an explosion of "huevo de codorniz...

  14. The behavior limestone under explosive load

    Science.gov (United States)

    Orlov, M. Yu; Orlova, Yu N.; Bogomolov, G. N.

    2016-11-01

    Limestone behavior under explosive loading was investigated. The behavior of the limestone by the action of the three types of explosives, including granular, ammonite and emulsion explosives was studied in detail. The shape and diameter of the explosion craters were obtained. The observed fragments after the blast have been classified as large, medium and small fragments. Three full-scale experiments were carried out. The research results can be used as a qualitative test for the approbation of numerical methods.

  15. Gas Explosions Mitigation by Ducted Venting

    OpenAIRE

    2007-01-01

    The mitigation of effects of gas and dust explosions within industrial equipment is effective if venting the combustion products to safe location. The presence of relief duct is however likely to increase the severity of the explosion with respect to equipment vented to open atmosphere, due to secondary explosions occurring in the initial sections of duct, frictional drag and inertia of the gas column, acoustic and Helmholtz oscillations. The weights of these phenomena on explosion e...

  16. Statistical estimation of loads from gas explosions

    OpenAIRE

    Høiset, Stian

    1998-01-01

    In the design of structures in the offshore and process industries, the possibility of a gas explosion must always be considered. This is usually incorporated by performing explosion simulations. However, estimations based on such calculations introduce uncertainties in the design process. The main uncertainties in explosion simulations are the assumption of the gas cloud,the location of the ignition point and the properties of the explosion simulator itself. In this thesis, we try to investi...

  17. 75 FR 70291 - Commerce in Explosives; List of Explosive Materials (2010R-27T)

    Science.gov (United States)

    2010-11-17

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF JUSTICE Bureau of Alcohol, Tobacco, Firearms and Explosives Commerce in Explosives; List of Explosive Materials (2010R-27T) AGENCY: Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), Department of...

  18. 77 FR 58410 - Commerce in Explosives; List of Explosive Materials (2012R-10T)

    Science.gov (United States)

    2012-09-20

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF JUSTICE Bureau of Alcohol, Tobacco, Firearms, and Explosives Commerce in Explosives; List of Explosive Materials (2012R-10T) AGENCY: Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF), Department of...

  19. 76 FR 64974 - Commerce in Explosives; List of Explosive Materials (2011R-18T)

    Science.gov (United States)

    2011-10-19

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF JUSTICE Bureau of Alcohol, Tobacco, Firearms and Explosives Commerce in Explosives; List of Explosive Materials (2011R-18T) AGENCY: Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), Department of...

  20. Explosive micro-bubble actuator

    NARCIS (Netherlands)

    Broek, van den D.M.; Elwenspoek, M.

    2008-01-01

    Explosive evaporation occurs when a liquid is exposed to extremely high heat-fluxes. Within a few microseconds a bubble in the form vapour film is generated, followed by rapid growth due to the pressure impulse and finally the bubbles collapse. This effect, which already has proven its use in curren

  1. Explosive micro-bubble actuator

    NARCIS (Netherlands)

    Broek, van den D.M.; Elwenspoek, M.C.

    2007-01-01

    Explosive evaporation occurs when a thin layer of liquid reaches a very high temperature in a very short time. At these temperatures homogeneous nucleation takes place. The nucleated bubbles almost instantly coalesce forming a vapour film followed by rapid growth due to the pressure impulse and fina

  2. Measuring explosive non-ideality

    Energy Technology Data Exchange (ETDEWEB)

    Souers, P C

    1999-02-17

    The sonic reaction zone length may be measured by four methods: (1) size effect, (2) detonation front curvature, (3) crystal interface velocity and (4) in-situ gauges. The amount of data decreases exponentially from (1) to (4) with there being almost no gauge data for prompt detonation at steady state. The ease and clarity of obtaining the reaction zone length increases from (1) to (4). The method of getting the reaction zone length, , is described for the four methods. A measure of non-ideality is proposed: the reaction zone length divided by the cylinder radius. N = /R{sub o}. N = 0 for true ideality. It also decreases with increasing radius as it should. For N < 0.10, an equilibrium EOS like the JWL may be used. For N > 0.10, a time-dependent description is essential. The crystal experiment, which measures the particle velocity of an explosive-transparent material interface, is presently rising in importance. We examine the data from three experiments and apply: (1) an impedance correction that transfers the explosive C-J particle velocity to the corresponding value for the interface, and (2) multiplies the interface time by 3/4 to simulate the explosive speed of sound. The result is a reaction zone length comparable to those obtained by other means. A few explosives have reaction zones so small that the change of slope in the particle velocity is easily seen.

  3. Lead-free primary explosives

    Science.gov (United States)

    Huynh, My Hang V.

    2010-06-22

    Lead-free primary explosives of the formula (cat).sub.Y[M.sup.II(T).sub.X(H.sub.2O).sub.6-X].sub.Z, where T is 5-nitrotetrazolate, and syntheses thereof are described. Substantially stoichiometric equivalents of the reactants lead to high yields of pure compositions thereby avoiding dangerous purification steps.

  4. Turbulent Combustion in SDF Explosions

    Energy Technology Data Exchange (ETDEWEB)

    Kuhl, A L; Bell, J B; Beckner, V E

    2009-11-12

    A heterogeneous continuum model is proposed to describe the dispersion and combustion of an aluminum particle cloud in an explosion. It combines the gas-dynamic conservation laws for the gas phase with a continuum model for the dispersed phase, as formulated by Nigmatulin. Inter-phase mass, momentum and energy exchange are prescribed by phenomenological models. It incorporates a combustion model based on the mass conservation laws for fuel, air and products; source/sink terms are treated in the fast-chemistry limit appropriate for such gasdynamic fields, along with a model for mass transfer from the particle phase to the gas. The model takes into account both the afterburning of the detonation products of the C-4 booster with air, and the combustion of the Al particles with air. The model equations were integrated by high-order Godunov schemes for both the gas and particle phases. Numerical simulations of the explosion fields from 1.5-g Shock-Dispersed-Fuel (SDF) charge in a 6.6 liter calorimeter were used to validate the combustion model. Then the model was applied to 10-kg Al-SDF explosions in a an unconfined height-of-burst explosion. Computed pressure histories are compared with measured waveforms. Differences are caused by physical-chemical kinetic effects of particle combustion which induce ignition delays in the initial reactive blast wave and quenching of reactions at late times. Current simulations give initial insights into such modeling issues.

  5. Optical Pressure Measurements of Explosions

    Science.gov (United States)

    2013-09-01

    Explosive Shocks in Air, 2nd ed.; Springer-Verlag: Berlin , Germany, 1985. 7. Anderson, J. D. Hypersonic and High Temperature Gas Dynamics, 2nd Ed...PDF) RDRL CIO LA T LANDFRIED RDRL WML M ZOLTOSKI RDRL WML A F DE LUCIA W OBERLE RDRL WML B J GOTTFRIED J CIEZAK

  6. A Game-Theoretic History of the Cuban Missile Crisis

    Directory of Open Access Journals (Sweden)

    Frank C. Zagare

    2014-01-01

    Full Text Available This study surveys and evaluates previous attempts to use game theory to explain the strategic dynamic of the Cuban missile crisis, including, but not limited to, explanations developed in the style of Thomas Schelling, Nigel Howard and Steven Brams. All of the explanations were judged to be either incomplete or deficient in some way. Schelling’s explanation is both empirically and theoretically inconsistent with the consensus interpretation of the crisis; Howard’s with the contemporary understanding of rational strategic behavior; and Brams’ with the full sweep of the events that define the crisis. The broad outlines of a more general explanation that addresses all of the foundational questions associated with the crisis within the confines of a single, integrated, game-theoretic model with incomplete information are laid out.

  7. Parametric control systems design with applications in missile control

    Institute of Scientific and Technical Information of China (English)

    DUAN GuangRen; YU HaiHua; TAN Feng

    2009-01-01

    This paper considers parametric control of high-order descriptor linear systems via proportional plus derivative feedback.By employing general parametric solutions to a type of so-called high-order Sylvester matrix equations,complete parametric control approaches for high-order linear systems are presented.The proposed approaches give simple complete parametric expressions for the feedback gains and the closed-loop eigenvector matrices,and produce all the design degrees of freedom.Furthermore,Important special cases are particularly treated.Based on the proposed parametric design approaches,a parametric method for the gain-scheduling controller design of a linear time-varying system is proposed and the design of a BTT missile autopilot is carried out.The simulation results show that the method is superior to the traditional one in sense of either global stability or system performance.

  8. Ballistic Missile Warhead Recognition based on Micro-Doppler Frequency

    Directory of Open Access Journals (Sweden)

    Sun Hui-Xia

    2008-11-01

    Full Text Available To elucidate the spinning-precession signatures of ballistic warhead, the model of spinning precessionfor ballistic missile warhead is established and the mathematics of micro-Doppler signatures caused by spinning-precession is derived. Then the micro-Doppler features are analysed using high-resolution time-frequencytransform, and the model predictions match the experimental data well. Based on  different mass of warheadsand decoys, the feature, which can reflect the mass of the targets, is extracted from the time-frequency plane,proving a new method for recognising warheads and discriminating these from decoys. Finally the validityof the feature extracted in this study is verified by computer simulations even with low signal-to-noise ratio.Defence Science Journal, 2008, 58(6, pp.705-709, DOI:http://dx.doi.org/10.14429/dsj.58.1697

  9. New digital-input transmitter for missile telemetry

    Science.gov (United States)

    Rieger, J. L.; Woodworth, P. H.

    It is pointed out that telemetry for aircraft and missiles has been in use by the military and its suppliers since the 1950's, using a variety of frequencies and formats. However, the techniques used in airborne telemetry have changed as a consequence of advances in electronic technology. Use of digital pulse-code modulation instead of the analog time-sampled pulse-amptitude modulation (PAM) produced by an analog commutator has advantages in noise performance in instances where the telemetry link is performing near the threshold of noise. The present investigation is concerned with a digital-input transmitter which accepts binary format directly from a TTL source and has applicability in both standard telemetry and encrypted systems. Attention is given to telemetry modulation systems, data encryption requirements, the modulation interface, and transmitter characteristics.

  10. MECHANISM OF EXPLOSIVE WELDING OF METALS

    OpenAIRE

    Sek, W.

    1988-01-01

    Mechanism of explosive welding is discussed. The experimental date indicate that the explosive bonding interface forms behind the collision point and the physical properties of metals affect considerably this process. The usefulness of hydrodynamic model for describing the explosive welding process is called in question.

  11. 14 CFR 420.63 - Explosive siting.

    Science.gov (United States)

    2010-01-01

    ... Aeronautics and Space COMMERCIAL SPACE TRANSPORTATION, FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... site plan shall include: (1) A scaled map that shows the location of all proposed explosive hazard... explosive hazard facility and all other explosive hazard facilities and each public area, including...

  12. 30 CFR 77.1301 - Explosives; magazines.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Explosives; magazines. 77.1301 Section 77.1301... and Blasting § 77.1301 Explosives; magazines. (a) Detonators and explosives other than blasting agents shall be stored in magazines. (b) Detonators shall not be stored in the same magazine with...

  13. 49 CFR 173.54 - Forbidden explosives.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Forbidden explosives. 173.54 Section 173.54... SHIPMENTS AND PACKAGINGS Definitions, Classification and Packaging for Class 1 § 173.54 Forbidden explosives. Unless otherwise provided in this subchapter, the following explosives shall not be offered for...

  14. 46 CFR 147.95 - Explosives.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Explosives. 147.95 Section 147.95 Shipping COAST GUARD... Special Requirements for Particular Materials § 147.95 Explosives. (a) Explosives—general. Except as provided for elsewhere in this subchapter, explosives, as defined in 49 CFR 173.50, which are hazardous...

  15. 46 CFR 153.921 - Explosives.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Explosives. 153.921 Section 153.921 Shipping COAST GUARD....921 Explosives. No person may load, off-load, or carry a cargo listed in this part on board a vessel that carries explosives unless he has the prior written permission of the Commandant (CG-522). ...

  16. Portable SERS Instrument for Explosives Monitoring

    Science.gov (United States)

    2008-01-01

    groundwater monitoring from a cone penetrometer (CPT) platform (5) Demonstrate improved capability for discriminating explosives versus colorimetry ...interference, and better discrimination of individual explosives compared to colorimetry • Applicability to virtually any environmental water...chemicals such as nitroaromatics or nitramines. While this makes colorimetry more generally applicable at explosive sites, it also limits the ability to

  17. Scientific Support for NQR Explosive Detection Development

    Science.gov (United States)

    2006-07-01

    Final 3. DATES COVERED (From - To) 8 March 2004 - 7 March 2006 4. TITLE AND SUBTITLE Scientific Support for NQR Explosive Detection Development...Laboratory (NRL) to improve explosive detection using nuclear quadrupole resonance ( NQR ) is summarized. The work includes studies of the effects...superconducting coils for explosive detection. Additional studies involving slowly rotating NQR measurements were also pursued. 15. SUBJECT TERMS Nuclear

  18. Explosion Power and Pressure Desensitization Resisting Property of Emulsion Explosives Sensitized by MgH2

    Science.gov (United States)

    Cheng, Yangfan; Ma, Honghao; Liu, Rong; Shen, Zhaowu

    2014-07-01

    Due to low detonation power and pressure desensitization problems that traditional emulsion explosives encounter in utilization, a hydrogen-based emulsion explosives was devised. This type of emulsion explosives is sensitized by hydrogen-containing material MgH2, and MgH2 plays a double role as a sensitizer and an energetic material in emulsion explosives. Underwater explosion experiments and shock wave desensitization experiments show that an MgH2 emulsion explosives has excellent detonation characteristics and is resistant to pressure desensitization. The pressure desensitization-resistant mechanism of MgH2 emulsion explosives was investigated using scanning electron microscopy.

  19. Ogive Nose Hard Missile Penetrating Concrete Slab Numerical Simulation Approach

    Directory of Open Access Journals (Sweden)

    Qadir Bux

    2011-01-01

    Full Text Available Great demand exists for more efficient design to protect delicate and serious structures such as nuclear plants, Power plants, Weapon Industries, weapons storage places, water retaining structures, & etc, against impact of kinetic missiles generated both accidentally and deliberately such as dynamic loading, incident occurs in nuclear plants, terrorist attack, Natural disasters like tsunami and etc., in various impact and blast scenarios for both civilian and military activities. In many cases, projectiles can be treated as rigid bodies when their damage and erosion are not severe. Due to the intricacy of the local impact damages, investigations are generally based on experimental data. Conclusions of the experimental observations are then used to guide engineering models. Local damages studies normally fall into three categories, i.e. empirical formulae based on data fitting, idealised analytical models based on physic laws and numerical simulations based on computational mechanics and material models. In the present study, 2D asymmetrical numerical simulation have done on concrete slab against the impact of  ogive nose hard missile of 26.90mm and 76.20mm diameter with CRH ratio 2.0 and 6.0 respectively, for penetration by using Concrete Damaged Plasticity Model, and ABAQUS/Explicit dynamic analysis in ABAQUS. It is found that the strains/stresses are induced in the concrete slab and a very nicely propagation of the stresses inside the  concrete slab in the form of waves, which is a clear indication for vibrations of the concrete. The lack of failure criterion in concrete damaged plasticity model does not allow the removal of elements during the analyses. This means that spalling, scabbing, and perforation cannot be modelled with the Concrete Damage Plasticity Model. The penetration depth results shows that the deeper penetration requires higher critical impact kinetic energies, and comparison shows the simulation results are more accurate

  20. 42nd Annual Armament Systems: Gun and Missile Systems

    Science.gov (United States)

    2007-04-26

    Reduced Caliber WARHEAD : • Penetrates building structures such as – Double brick Walls – Clay Walls – Timber and Sand Bags Bunker • 400 g explosives of...Prototype Demo Planned May 07 • LRIP Quantity Planned 3rdQ FY07 SOCOM GPK • Expanded Requirements • ARDEC LRIP underway Sculpted Transparent Armor • Curved

  1. Radar signal analysis of ballistic missile with micro-motion based on time-frequency distribution

    Science.gov (United States)

    Wang, Jianming; Liu, Lihua; Yu, Hua

    2015-12-01

    The micro-motion of ballistic missile targets induces micro-Doppler modulation on the radar return signal, which is a unique feature for the warhead discrimination during flight. In order to extract the micro-Doppler feature of ballistic missile targets, time-frequency analysis is employed to process the micro-Doppler modulated time-varying radar signal. The images of time-frequency distribution (TFD) reveal the micro-Doppler modulation characteristic very well. However, there are many existing time-frequency analysis methods to generate the time-frequency distribution images, including the short-time Fourier transform (STFT), Wigner distribution (WD) and Cohen class distribution, etc. Under the background of ballistic missile defence, the paper aims at working out an effective time-frequency analysis method for ballistic missile warhead discrimination from the decoys.

  2. A Terminal Guidance Law Based on Motion Camouflage Strategy of Air-to-Ground Missiles

    Directory of Open Access Journals (Sweden)

    Chang-sheng Gao

    2016-01-01

    Full Text Available A guidance law for attacking ground target based on motion camouflage strategy is proposed in this paper. According to the relative position between missile and target, the dual second-order dynamics model is derived. The missile guidance condition is given by analyzing the characteristic of motion camouflage strategy. Then, the terminal guidance law is derived by using the relative motion of missile and target and the guidance condition. In the process of derivation, the three-dimensional guidance law could be designed in a two-dimensional plane and the difficulty of guidance law design is reduced. A two-dimensional guidance law for three-dimensional space is derived by bringing the estimation for target maneuver. Finally, simulation for the proposed guidance law is taken and compared with pure proportional navigation. The simulation results demonstrate that the proposed guidance law can be applied to air-to-ground missiles.

  3. Missile injuries to the external genitalia: a five year experience in Maiduguri, North Eastern Nigeria

    Directory of Open Access Journals (Sweden)

    Hassan Mohammed Dogo

    2016-07-01

    Conclusions: Genital missile injuries are on the increase with militarization of civilian population. Goals of treatment still remain cosmesis, preservation of erectile and voiding function. [Int J Res Med Sci 2016; 4(7.000: 2964-2966

  4. Numerical computation algorithm of explosion equations and thermodynamics parameters of mine explosives

    Institute of Scientific and Technical Information of China (English)

    李守巨; 刘迎曦; 何翔; 周圆π

    2001-01-01

    A new numerical algorithm is presented to simulate the explosion reaction process of mine explosives based on the equation of state, the equation of mass conservation and thermodynamics balance equation of explosion products. With the affection of reversible reaction of explosion products to explosion reaction equations and thermodynamics parameters considered, the computer program has been developed. The computation values show that computer simulation results are identical with the testinq ones.

  5. Numerical computation algorithm of explosion equations and thermodynamics parameters of mine explosives

    Institute of Scientific and Technical Information of China (English)

    LI Shou-ju; LIU Ying-xi; HE Xiang; ZHOU Y uan-pai

    2001-01-01

    A new numerical algorithm is presented to simulate the explosion reacti on process of mine explosives based on the equation of state, the equation of ma ss conservation and thermodynamics balance equation of explosion products. With the affection of reversible reaction of explosion products to explosion reaction equations and thermodynamics parameters considered, the computer program has be en developed. The computation values show that computer simulation results are i dentical with the testing ones.

  6. Impact of cruise ship emissions in Victoria, BC, Canada

    Science.gov (United States)

    Poplawski, Karla; Setton, Eleanor; McEwen, Bryan; Hrebenyk, Dan; Graham, Mark; Keller, Peter

    2011-02-01

    Characterization of the effects of cruise ship emissions on local air quality is scarce. Our objective was to investigate community level concentrations of fine particulate matter (PM 2.5), nitrogen dioxide (NO 2) and sulphur dioxide (SO 2) associated with cruise ships in James Bay, Victoria, British Columbia (BC), Canada. Data obtained over four years (2005-2008) at the nearest air quality network site located 3.5 km from the study area, a CALPUFF modeling exercise (2007), and continuous measurements taken in the James Bay community over a three-month period during the 2009 cruise ship season were examined. Concentrations of PM 2.5 and nitrogen oxide (NO) were elevated on weekends with ships present with winds from the direction of the terminal to the monitoring station. SO 2 displayed the greatest impact from the presence of cruise ships in the area. Network data showed peaks in hourly SO 2 when ships were in port during all years. The CALPUFF modeling analysis found predicted 24-hour SO 2 levels to exceed World Health Organization (WHO) guidelines of 20 μg m -3 for approximately 3% of 24-hour periods, with a maximum 24-hour concentration in the community of 41 μg m -3; however, the CALPUFF model underestimated concentrations when predicted and measured concentrations were compared at the network site. Continuous monitoring at the location in the community predicted to experience highest SO 2 concentrations measured a maximum 24-hour concentration of 122 μg m -3 and 16% of 24-hour periods were above the WHO standard. The 10-minute concentrations of SO 2 reached up to 599 μg m -3 and exceeded the WHO 10-minute SO 2 guideline (500 μg m -3) for 0.03% of 10-minute periods. No exceedences of BC Provincial or Canadian guidelines or standards were observed.

  7. Seeing 2020: America’s New Vision for Integrated Air and Missile Defense

    Science.gov (United States)

    2015-01-01

    the U.S. Army Air Corps began Operation Crossbow, the Anglo-American bombing campaign against Adolf Hitler’s V-1 and V-2 missile forces and a...science of war and its weapons matured, the development of improved propulsion, guidance, and payloads in guns, artillery, rockets, mortars , aircraft...range of threats to include short- and intermediate-range ballistic missiles, bombers, and tactical weapons such as artillery, rockets, and mortars

  8. Missile Captive Carry Monitoring and Helicopter Identification Using a Capacitive Microelectromechanical Systems Accelerometer

    Energy Technology Data Exchange (ETDEWEB)

    Hatchell, Brian K.; Mauss, Fredrick J.; Amaya, Ivan A.; Skorpik, James R.; Silvers, Kurt L.; Marotta, Steve

    2012-03-27

    Military missiles are exposed to many sources of mechanical vibration that can affect system reliability, safety, and mission effectiveness. The U. S. Army Aviation and Missile Research Development and Engineering Center (AMRDEC) has been developing missile health monitoring systems to assess and improve reliability, reduce life cycle costs, and increase system readiness. One of the most significant exposures to vibration occurs when the missile is being carried by a helicopter or other aviation platform, which is a condition known as captive carry. Recording the duration of captive carry exposure during the missile’s service life can enable the implementation of predictive maintenance and resource management programs. Since the vibration imparted by each class of helicopter varies in frequency and amplitude, tracking the vibration exposure from each helicopter separately can help quantify the severity and harmonic content of the exposure. Under the direction of AMRDEC staff, engineers at the Pacific Northwest National Laboratory have developed a Captive Carry Health Monitor (CCHM) for the Hellfire II missile. The CCHM is an embedded usage monitoring device installed on the outer skin of the Hellfire II missile to record the cumulative hours the host missile has been in captive carry mode. To classify the vibration by class of helicopter, the CCHM analyzes the amplitude and frequency content of the vibration with the Goertzel algorithm to detect the presence of distinctive rotor harmonics. Cumulative usage data are accessible in theater from an external display; monthly usage histograms are accessible through an internal download connector. This paper provides an overview of the CCHM electrical and package design, describes field testing and data analysis techniques used to monitor captive carry identify and the class of helicopter, and discusses the potential application of missile health and usage data for real-time reliability analysis and fleet management.

  9. Steady Fault Characteristic Analysis of a Missile Power System Based on a Differential Evolution Algorithm

    Institute of Scientific and Technical Information of China (English)

    XU Zhi-gao; GUAN Zheng-xi; MA Jing

    2005-01-01

    The differential evolution (DE) algorithm is applied to solving the models' equations of a whole missile power system, and the steady fault characteristics of the whole system are analyzed. The DE algorithm is robust, requires few control variables, is easy to use and lends itself very well to parallel computation. Calculation results indicate that the DE algorithm simulates faults of a missile power system very well.

  10. Six-Degree-of-Freedom Digital Simulations for Missile Guidance and Control

    Directory of Open Access Journals (Sweden)

    Yongjie Xu

    2015-01-01

    Full Text Available Six-degree-of-freedom ballistic trajectory model can be used to verify design indicators, performance parameters, and correctness so they have been put forward in the missile argumentation and design process. Mathematical simulation is the basis of late semiphysical simulation and field firing testing, and it can greatly reduce the field shooting test time, which shortens the missile test cycle and so reduces costs.

  11. The Impact on Strategic Stability of Ballistic Missile Defense in Eastern Europe

    Science.gov (United States)

    2009-06-12

    the final chapter of the Eastern European missile defense saga has yet to be written, this study can contribute to the field of knowledge even at...Canada at the USSR Academy of Sciences. This publication is invaluable in examining how strategic stability was viewed at the twilight of the Cold...the Czech Republic are carrying out deliberations and how Russia is reacting to each particular new wrinkle in the missile defense saga ; and

  12. A Strategic Conversation about National Missile Defense (Strategic Studies Quarterly, Winter 2008)

    Science.gov (United States)

    2008-01-01

    they were “producing missiles like sausages .” These quotes, and the overall tone of Reagan’s speech, indicate the specific historical context in which...in this article . LeFevre.indd 108 10/30/08 1:18:22 PM A Strategic Conversation about National Missile Defense Strategic  Studies  Quarterly...time.com/time/magazine/ article /0,9171,923443,00.html. 3. National Intelligence Council, “Iran: Nuclear Intentions and Capabilities,” National Intel- ligence

  13. Texas Teacher at Sea on the BOLIVAR Project Geophysical Cruise

    Science.gov (United States)

    Keelan, M.; Sullivan, S.; Ellins, K.

    2004-12-01

    UTIG provides K-12 teachers with research experiences in field programs that involve UTIG scientists. I am a 6th-9th grade science teacher in Van Vleck, Texas and in April 2004 I sailed to the southeastern Caribbean aboard the R/V Maurice Ewing as a member of the BOLIVAR Project alongside scientists from the U.S. and Venezuela. Our goal was collect seismic data to image the crust and mantle beneath the Caribbean as part of a study of the tectonic processes accompanying different stages of the Caribbean arc/South America continental collision process. Throughout the 52-day cruise I worked as a watch stander, interpreted newly collected seismic reflection data, helped deploy the streamer, maintained a cruise blog (a chronological journal weblog documenting personal thoughts about my experience), spoke with students in Texas with the telephone on loan from Iridium Satellite Solutions, and responded to email inquiries from shore-based students. It was hard work, but most importantly, a voyage of discovery. With guidance from scientists and GK-12 Fellows at UTIG, I am using my experience and the data collected as the basis for K-12 curriculum resources, including learning activities and a video documentary. Support for my participation and post-cruise activities was provided by the NSF and the Trull Foundation in Texas. If given the opportunity to do this again, I would, without reservation!

  14. Gas explosions - an elementary account; Eksplosiv fare

    Energy Technology Data Exchange (ETDEWEB)

    Seehusen, Joachim

    2002-07-01

    Although in a typical gas explosion the flame front propagates at sub-sonic speed, it still moves fast. Safety people often believe they can run away from a gas explosion. While gas explosions are well understood in the major companies, this is not true in many small ones, and people often do not realise how small the difference may be between a small puff and a dangerous explosion. Of special interest in a ''hydrogen society'' is the fact that hydrogen is dangerous and must be handled with care. The article discusses in an elementary way some of the basic concepts from the physics of gas explosions.

  15. Cooperative Monitoring Center Occasional Paper/9: De-Alerting Strategic Ballistic Missiles

    Energy Technology Data Exchange (ETDEWEB)

    Connell, Leonard W.; Edenburn, Michael W.; Fraley, Stanley K.; Trost, Lawrence C.

    1999-03-01

    This paper presents a framework for evaluating the technical merits of strategic ballistic missile de-alerting measures, and it uses the framework to evaluate a variety of possible measures for silo-based, land-mobile, and submarine-based missiles. De-alerting measures are defined for the purpose of this paper as reversible actions taken to increase the time or effort required to launch a strategic ballistic missile. The paper does not assess the desirability of pursuing a de-alerting program. Such an assessment is highly context dependent. The paper postulates that if de-alerting is desirable and is used as an arms control mechanism, de-alerting measures should satisfy specific cirteria relating to force security, practicality, effectiveness, significant delay, and verifiability. Silo-launched missiles lend themselves most readily to de-alerting verification, because communications necessary for monitoring do not increase the vulnerabilty of the weapons by a significant amount. Land-mobile missile de-alerting measures would be more challenging to verify, because monitoring measures that disclose the launcher's location would potentially increase their vulnerability. Submarine-launched missile de-alerting measures would be extremely challlenging if not impossible to monitor without increasing the submarine's vulnerability.

  16. Countermeasure effectiveness against an intelligent imaging infrared anti-ship missile

    Science.gov (United States)

    Gray, Greer J.; Aouf, Nabil; Richardson, Mark; Butters, Brian; Walmsley, Roy

    2013-02-01

    Ship self defense against heat-seeking anti-ship missiles is of great concern to modern naval forces. One way of protecting ships against these threats is to use infrared (IR) offboard countermeasures. These decoys need precise placement to maximize their effectiveness, and simulation is an invaluable tool used in determining optimum deployment strategies. To perform useful simulations, high-fidelity models of missiles are required. We describe the development of an imaging IR anti-ship missile model for use in countermeasure effectiveness simulations. The missile model's tracking algorithm is based on a target recognition system that uses a neural network to discriminate between ships and decoys. The neural network is trained on shape- and intensity-based features extracted from simulated imagery. The missile model is then used within ship-decoy-missile engagement simulations, to determine how susceptible it is to the well-known walk-off seduction countermeasure technique. Finally, ship survivability is improved by adjusting the decoy model to increase its effectiveness against the tracker.

  17. Damage Effects of Shelled Explosive Explosion in Concrete

    Directory of Open Access Journals (Sweden)

    Liu Yan

    2010-10-01

    Full Text Available The damage of concrete subjected to explosion loading is an important issue in defense engineering. The damage degree of concrete is related to many factors, such as the type of explosive charge, the depth of burial and the parameters of concrete. In this paper, three factors are considered for experiments of shelled explosives in concrete targets, which are the filling coefficient, length-to-diameter ratio and the depth of burial. The filling coefficient is from 0.1 to 1 by changing thickness of shell, and length-to-diameter ratio is from 2.5 to 10. The unconfined compressive strength of concrete target for test is 35MPa. The experimental results showed that the sizes of craters of concretes are varied as the filling coefficient, length-to-diameter ratio and the depth of burial. The optimal values of filling coefficient, length-to-diameter ratio and the depth of burial of shelled charges were obtained to get largest damage regions of concrete targets. This work provides a base for evaluating the damage of concrete and designing the penetrating warhead.Defence Science Journal, 2010, 60(6, pp.672-677, DOI:http://dx.doi.org/10.14429/dsj.60.434

  18. Spot test kit for explosives detection

    Science.gov (United States)

    Pagoria, Philip F; Whipple, Richard E; Nunes, Peter J; Eckels, Joel Del; Reynolds, John G; Miles, Robin R; Chiarappa-Zucca, Marina L

    2014-03-11

    An explosion tester system comprising a body, a lateral flow membrane swab unit adapted to be removeably connected to the body, a first explosives detecting reagent, a first reagent holder and dispenser operatively connected to the body, the first reagent holder and dispenser containing the first explosives detecting reagent and positioned to deliver the first explosives detecting reagent to the lateral flow membrane swab unit when the lateral flow membrane swab unit is connected to the body, a second explosives detecting reagent, and a second reagent holder and dispenser operatively connected to the body, the second reagent holder and dispenser containing the second explosives detecting reagent and positioned to deliver the second explosives detecting reagent to the lateral flow membrane swab unit when the lateral flow membrane swab unit is connected to the body.

  19. Sensitivity to friction for primary explosives.

    Science.gov (United States)

    Matyáš, Robert; Šelešovský, Jakub; Musil, Tomáš

    2012-04-30

    The sensitivity to friction for a selection of primary explosives has been studied using a small BAM friction apparatus. The probit analysis was used for the construction of a sensitivity curve for each primary explosive tested. Two groups of primary explosives were chosen for measurement (a) the most commonly used industrially produced primary explosives (e.g. lead azide, tetrazene, dinol, lead styphnate) and (b) the most produced improvised primary explosives (e.g. triacetone triperoxide, hexamethylenetriperoxide diamine, mercury fulminate, acetylides of heavy metals). A knowledge of friction sensitivity is very important for determining manipulation safety for primary explosives. All the primary explosives tested were carefully characterised (synthesis procedure, shape and size of crystals). The sensitivity curves obtained represent a unique set of data, which cannot be found anywhere else in the available literature. Copyright © 2012 Elsevier B.V. All rights reserved.

  20. Maritime Security: Varied Actions Taken to Enhance Cruise Ship Security, but Some Concerns Remain

    Science.gov (United States)

    2010-04-01

    nonprobability sample of six cruise ship ports in the United States and four Coast Guard Sectors.5 We selected these locations based on the number of cruise ship...locations. The cruise lines we met with were primarily based on a nonprobability sample selected for their relative size and location. While their views...TSA) • Test technologies, practices, and techniques for passenger screening systems in the maritime environment. • Coordinate with the Coast