WorldWideScience

Sample records for range thermal weapon

  1. Long range thermal weapon sights for the German future infantryman program IdZ

    Science.gov (United States)

    Breiter, Rainer; Ihle, Tobias; Mauk, Karl-Heinz; Münzberg, Mario; Rode, Werner

    2007-04-01

    In December 2004 AIM started the series production of the HuntIR long range thermal weapon sight. The sight is fielded in the Germany Future Infantryman (IdZ) basic system and since that time in continuous service in various out of area missions with German participation. For very long identification ranges >1500m cooled technology still outperforms uncooled sights, even with respect to smaller size and lower weight because the typical F/1 design of uncooled systems overcompensates cooler weight for focal length >175mm. The HuntIR sight is therefore based on a cooled MWIR detection module for long range battlefield surveillance and target engagement. The device specifically is a perfect match to state of the art small arms like 0.50 cal sniper rifles or crew served weapons like the 40mm high velocity grenade machine gun (GMG) which provide engagement ranges >1500m and need an adequate sight performance beyond that. A recent modification of HuntIR was done to provide a wider field of view for improved situation awareness in urban operations and specifically to allow the engagement of the 40mm GMG in ranges between 250-1200m. The qualification tests of the sight by the German infantry were successfully completed mid 2006. To match the demand of the follow-up program IdZ-ES additional components have to be integrated. Most important are a laser range finder (LRF), 3 axis digital magnetic compass (DMC) and a wireless data link. LRF and DMC together with a highly sophisticated fire control computer provide improved first round hit probability, the DMC additionally improves the fire control in any case of steep trajectories or for pronounced ballistic trajectories to avoid any need to precisely level the GMG. This new sight is done under the brand name RangIR. An important additional feature is the interface for air burst ammunition (ABM). The optical distance is measured by the LRF, the fire control computer accurately evaluates the trajectory under the given angle

  2. Weapons of Mass Destruction Technology Evaluation and Training Range

    Energy Technology Data Exchange (ETDEWEB)

    Kevin Larry Young

    2009-05-01

    The Idaho National Laboratory (INL) has a long history for providing technology evaluation and training for military and other federal level Weapons of Mass Destruction (WMD) response agencies. Currently there are many federal organizations and commercial companies developing technologies related to detecting, assessing, mitigating and protecting against hazards associated with a WMD event. Unfortunately, very few locations exist within the United States where WMD response technologies are realistically field tested and evaluated using real chemical, biological, radiological, nuclear and explosive materials. This is particularly true with biological and radiological hazards. Related to this lack of adequate WMD, multi-hazard technology testing capability is the shortage of locations where WMD response teams can train using actual chemical, biological, and radiological material or highly realistic simulates. In response to these technology evaluation and training needs, the INL has assembled a consortium of subject matter experts from existing programs and identified dedicated resources for the purpose of establishing an all-hazards, WMD technology evaluation and training range. The author describes the challenges associated with creating the all-hazards WMD technology evaluation and training range and lists the technical, logistical and financial benefits of an all-hazards technology evaluation and training range. Current resources and capabilities for conducting all-hazard technology evaluation and training at the INL are identified. Existing technology evaluation and training programs at the INL related to radiological, biological and chemical hazards are highlighted, including successes and lessons learned. Finally, remaining gaps in WMD technology evaluation and training capabilities are identified along with recommendations for closing those gaps.

  3. Thermal weapon sights with integrated fire control computers: algorithms and experiences

    Science.gov (United States)

    Rothe, Hendrik; Graswald, Markus; Breiter, Rainer

    2008-04-01

    The HuntIR long range thermal weapon sight of AIM is deployed in various out of area missions since 2004 as a part of the German Future Infantryman system (IdZ). In 2007 AIM fielded RangIR as upgrade with integrated laser Range finder (LRF), digital magnetic compass (DMC) and fire control unit (FCU). RangIR fills the capability gaps of day/night fire control for grenade machine guns (GMG) and the enhanced system of the IdZ. Due to proven expertise and proprietary methods in fire control, fast access to military trials for optimisation loops and similar hardware platforms, AIM and the University of the Federal Armed Forces Hamburg (HSU) decided to team for the development of suitable fire control algorithms. The pronounced ballistic trajectory of the 40mm GMG requires most accurate FCU-solutions specifically for air burst ammunition (ABM) and is most sensitive to faint effects like levelling or firing up/downhill. This weapon was therefore selected to validate the quality of the FCU hard- and software under relevant military conditions. For exterior ballistics the modified point mass model according to STANAG 4355 is used. The differential equations of motions are solved numerically, the two point boundary value problem is solved iteratively. Computing time varies according to the precision needed and is typical in the range from 0.1 - 0.5 seconds. RangIR provided outstanding hit accuracy including ABM fuze timing in various trials of the German Army and allied partners in 2007 and is now ready for series production. This paper deals mainly with the fundamentals of the fire control algorithms and shows how to implement them in combination with any DSP-equipped thermal weapon sights (TWS) in a variety of light supporting weapon systems.

  4. 3-D Characterization of Seismic Properties at the Smart Weapons Test Range, YPG

    National Research Council Canada - National Science Library

    Miller, Richard

    2001-01-01

    The Smart Weapons Test Range (SWTR) lies within the Yuma Proving Ground (YPG), Arizona. SWTR is a new facility constructed specifically for the development and testing of futuristic intelligent battlefield sensor networks...

  5. Damage assessment of long-range rocket system by electromagnetic pulse weapon

    Science.gov (United States)

    Cao, Lingyu; Liu, Guoqing; Li, Jinming

    2017-08-01

    This paper analyzes the damage mechanism and characteristics of electromagnetic pulse weapon, establishes the index system of survivability of long-range rocket launcher system, and uses AHP method to establish the combat effectiveness model of long-range rocket missile system. According to the damage mechanism and characteristics of electromagnetic pulse weapon, the damage effect of the remote rocket system is established by using the exponential method to realize the damage efficiency of the remote rocket system.

  6. Wide Operational Range Thermal Sensor

    Science.gov (United States)

    Goebel, John H. (Inventor); McMurray, Robert E., Jr. (Inventor)

    2005-01-01

    Bolometer system and method for detecting, at BLIP levels, presence of radiation over a broad range of wavelengths in an infrared spectrum and in a temperature range from 20 K to as high as room temperature. The radiation is received by a Si crystal having a region that is doped with one or more of In, Ga, S, Se, Te, B, Al, P, As and Sb in a concentration ratio in a range such as 5 x 10(exp -11) to 5 x 10(exp -6). Change in electrical resistance delta R due to receipt of the radiation is measured through a change in voltage difference or current within the crystal, and the quantity delta R is converted to an estimate of the amount of radiation received. Optionally, incident radiation having an energy high enough to promote photoconductivity is removed before detection.

  7. The use of thermal desorption in monitoring for the chemical weapons demilitarization program.

    Science.gov (United States)

    Harper, Martin

    2002-10-01

    Under international treaty, the United States and Russia are disposing of their aging stockpile of chemical weapons. Incineration and chemical neutralization are options for sites in the United States, although Russia prefers the latter. The storage and disposal of bulk and chemical agents and weapons involve unique hazards of handling extremely toxic materials. There are three major areas of concern--the storage stockpile, the disposal area, and the discovery and destruction of "found" material not considered part of the stockpile. Methods have been developed to detect the presence of chemical agents in the air, and these are used to help assure worker protection and the safety of the local population. Exposure limits for all chemical agents are low, sometimes nanograms per cubic meter for worker control limits and picograms per cubic meter for general population limits. There are three types of monitoring used in the USA: alarm, confirmation, and historical. Alarm monitors are required to give relatively immediate real-time responses to agent leaks. They are simple to operate and rugged, and provide an alarm in near real-time (generally a few minutes). Alarm monitors for the demilitarization program are based on sorbent pre-concentration followed by thermal desorption and simple gas chromatography. Alarms may need to be confirmed by another method, such as sample tubes collocated with the alarm monitor and analyzed in a laboratory by more sophisticated chromatography. Sample tubes are also used for historical perimeter monitoring, with sample periods typically of 12 h. The most common detector is the flame photometric detector, in sulfur or phosphorous mode, although others, such as mass-selective detectors, also have been used. All agents have specific problems with collection, chromatography and detection. Monitoring is not made easier by interferences from pesticide spraying, busy roadways or military firing ranges. Exposure limits drive the requirements for

  8. 33 CFR 334.1280 - Bristol Bay, Alaska; air-to-air weapon range, Alaskan Air Command, U.S. Air Force.

    Science.gov (United States)

    2010-07-01

    ... weapon range, Alaskan Air Command, U.S. Air Force. 334.1280 Section 334.1280 Navigation and Navigable... REGULATIONS § 334.1280 Bristol Bay, Alaska; air-to-air weapon range, Alaskan Air Command, U.S. Air Force. (a... enforced by the Commander, Alaskan Air Command, U.S. Air Force, Seattle, Washington, or such agencies as he...

  9. Environmental Impact Analysis Process, Winnersville Weapons Range, Lanier and Lowndes Counties, Georgia

    Science.gov (United States)

    1985-11-01

    area and will adversely affect the value of all property in this area. The bombing range will also pose a greater danger to people and property. Just...tewer peopl., but only Echols County was considered. Particularly absurd is rhE lait (’i recited on Pg. IH that a range in Echols would n’,iulre

  10. Laser weapons

    Science.gov (United States)

    Tsipis, K.

    1981-12-01

    The potential for deploying lasers as an effective antimissile system is assessed. High intensity and precise collimation are noted as essential for lasers as weapons, although size and material properties determine the actual performance. Gas-dynamic, electron, and chemical lasers are reviewed as prime weapons candidates. Space-, ground-, and ship-based uses are considered; each demands precision pointing, involving movable mirrors, target tracking and condition sensors, and central processing for target choice, along with large capacity power generation and storage. Laser propagation in the atmosphere is degraded by absorption, scattering, thermal blooming, turbulence (causes diffraction), and plasma formation ahead of the beam. Different modes of damaging missiles are reviewed, and it is found that mirrored surfaces, ablative coatings, and fluid layers have significant abilities to protect a missile in-flight. Destroying an ICBM in the boost phase is calculated to require a one million MW generator, far beyond current power engineering capabilities. Conventional weapons are viewed as more effective than lasers, although high energy laser research may have definite applications in areas such as chemical engineering

  11. Analysis of the variation of range parameters of thermal cameras

    Science.gov (United States)

    Bareła, Jarosław; Kastek, Mariusz; Firmanty, Krzysztof; Krupiński, Michał

    2016-10-01

    Measured range characteristics may vary considerably (up to several dozen percent) between different samples of the same camera type. The question is whether the manufacturing process somehow lacks repeatability or the commonly used measurement procedures themselves need improvement. The presented paper attempts to deal with the aforementioned question. The measurement method has been thoroughly analyzed as well as the measurement test bed. Camera components (such as detector and optics) have also been analyzed and their key parameters have been measured, including noise figures of the entire system. Laboratory measurements are the most precise method used to determine range parameters of a thermal camera. However, in order to obtain reliable results several important conditions have to be fulfilled. One must have the test equipment capable of measurement accuracy (uncertainty) significantly better than the magnitudes of measured quantities. The measurements must be performed in a controlled environment thus excluding the influence of varying environmental conditions. The personnel must be well-trained, experienced in testing the thermal imaging devices and familiar with the applied measurement procedures. The measurement data recorded for several dozen of cooled thermal cameras (from one of leading camera manufacturers) have been the basis of the presented analysis. The measurements were conducted in the accredited research laboratory of Institute of Optoelectronics (Military University of Technology).

  12. Long-range tropospheric transport of uranium and plutonium weapons fallout from Semipalatinsk nuclear test site to Norway.

    Science.gov (United States)

    Wendel, Cato Christian; Fifield, L Keith; Oughton, Deborah H; Lind, Ole Christian; Skipperud, Lindis; Bartnicki, Jerzy; Tims, Stephen G; Høibråten, Steinar; Salbu, Brit

    2013-09-01

    A combination of state-of-the-art isotopic fingerprinting techniques and atmospheric transport modelling using real-time historical meteorological data has been used to demonstrate direct tropospheric transport of radioactive debris from specific nuclear detonations at the Semipalatinsk test site in Kazakhstan to Norway via large areas of Europe. A selection of archived air filters collected at ground level at 9 stations in Norway during the most intensive atmospheric nuclear weapon testing periods (1957-1958 and 1961-1962) has been screened for radioactive particles and analysed with respect to the concentrations and atom ratios of plutonium (Pu) and uranium (U) using accelerator mass spectrometry (AMS). Digital autoradiography screening demonstrated the presence of radioactive particles in the filters. Concentrations of (236)U (0.17-23nBqm(-3)) and (239+240)Pu (1.3-782μBqm(-3)) as well as the atom ratios (240)Pu/(239)Pu (0.0517-0.237) and (236)U/(239)Pu (0.0188-0.7) varied widely indicating several different sources. Filter samples from autumn and winter tended to have lower atom ratios than those sampled in spring and summer, and this likely reflects a tropospheric influence in months with little stratospheric fallout. Very high (236)U, (239+240)Pu and gross beta activity concentrations as well as low (240)Pu/(239)Pu (0.0517-0.077), (241)Pu/(239)Pu (0.00025-0.00062) and (236)U/(239)Pu (0.0188-0.046) atom ratios, characteristic of close-in and tropospheric fallout, were observed in filters collected at all stations in Nov 1962, 7-12days after three low-yield detonations at Semipalatinsk (Kazakhstan). Atmospheric transport modelling (NOAA HYSPLIT_4) using real-time meteorological data confirmed that long range transport of radionuclides, and possibly radioactive particles, from Semipalatinsk to Norway during this period was plausible. The present work shows that direct tropospheric transport of fallout from atmospheric nuclear detonations periodically may have

  13. Thermal carrying capacity for a thermally-sensitive species at the warmest edge of its range.

    Directory of Open Access Journals (Sweden)

    Daniel Ayllón

    Full Text Available Anthropogenic environmental change is causing unprecedented rates of population extirpation and altering the setting of range limits for many species. Significant population declines may occur however before any reduction in range is observed. Determining and modelling the factors driving population size and trends is consequently critical to predict trajectories of change and future extinction risk. We tracked during 12 years 51 populations of a cold-water fish species (brown trout Salmo trutta living along a temperature gradient at the warmest thermal edge of its range. We developed a carrying capacity model in which maximum population size is limited by physical habitat conditions and regulated through territoriality. We first tested whether population numbers were driven by carrying capacity dynamics and then targeted on establishing (1 the temperature thresholds beyond which population numbers switch from being physical habitat- to temperature-limited; and (2 the rate at which carrying capacity declines with temperature within limiting thermal ranges. Carrying capacity along with emergent density-dependent responses explained up to 76% of spatio-temporal density variability of juveniles and adults but only 50% of young-of-the-year's. By contrast, young-of-the-year trout were highly sensitive to thermal conditions, their performance declining with temperature at a higher rate than older life stages, and disruptions being triggered at lower temperature thresholds. Results suggest that limiting temperature effects were progressively stronger with increasing anthropogenic disturbance. There was however a critical threshold, matching the incipient thermal limit for survival, beyond which realized density was always below potential numbers irrespective of disturbance intensity. We additionally found a lower threshold, matching the thermal limit for feeding, beyond which even unaltered populations declined. We predict that most of our study

  14. Nuclear Weapon Yield Determination through Nano Indentation of Thermally Degraded Automobile Paint

    Science.gov (United States)

    2011-03-01

    subsequently down- scattered to lower energy photons in the visual and IR range. As an example, Figure 1 shows the spectral energy distribution of the...portions, the visible region; and the right shaded portions, the infrared region. UV and visible light photons , which travel greater distances through air...60 Hz non- interlaced Detector Type Focal Plane Array (FPA), uncooled microbolometer 320 x 240 pixels Spectral Range 7.5 to 13μm Temperature

  15. Weapons Neutron Research Facility (WNR)

    Data.gov (United States)

    Federal Laboratory Consortium — The Weapons Neutron Research Facility (WNR) provides neutron and proton beams for basic, applied, and defense-related research. Neutron beams with energies ranging...

  16. Special Weapons

    Data.gov (United States)

    Federal Laboratory Consortium — Supporting Navy special weapons, the division provides an array of engineering services, technical publication support services, logistics support services, safety...

  17. Global strike hypersonic weapons

    Science.gov (United States)

    Lewis, Mark J.

    2017-11-01

    Beginning in the 1940's, the United States has pursued the development of hypersonic technologies, enabling atmospheric flight in excess of five times the speed of sound. Hypersonic flight has application to a range of military and civilian applications, including commercial transport, space access, and various weapons and sensing platforms. A number of flight tests of hypersonic vehicles have been conducted by countries around the world, including the United States, Russia, and China, that could lead the way to future hypersonic global strike weapon systems. These weapons would be especially effective at penetrating conventional defenses, and could pose a significant risk to national security.

  18. Thermal Weapon Sight (TWS).

    Science.gov (United States)

    1978-09-01

    1.0~ INCHES Fi gure A-7. Profile of TWS scanne r elevation drive cam . HERTZ STRESSES I The Hertz conL ’ ct stresses were determined using the...The cam torque is p r imar i ly of in teres t dur ing spin-up where the j motor must supp ly the torque to “ get over the hump” . Once the cam shaft

  19. Effects of Nuclear Weapons.

    Science.gov (United States)

    Sartori, Leo

    1983-01-01

    Fundamental principles governing nuclear explosions and their effects are discussed, including three components of a nuclear explosion (thermal radiation, shock wave, nuclear radiation). Describes how effects of these components depend on the weapon's yield, its height of burst, and distance of detonation point. Includes effects of three…

  20. Virtual nuclear weapons

    Energy Technology Data Exchange (ETDEWEB)

    Pilat, J.F.

    1997-08-01

    The term virtual nuclear weapons proliferation and arsenals, as opposed to actual weapons and arsenals, has entered in recent years the American lexicon of nuclear strategy, arms control, and nonproliferation. While the term seems to have an intuitive appeal, largely due to its cyberspace imagery, its current use is still vague and loose. The author believes, however, that if the term is clearly delineated, it might offer a promising approach to conceptualizing certain current problems of proliferation. The first use is in a reference to an old problem that has resurfaced recently: the problem of growing availability of weapon-usable nuclear materials in civilian nuclear programs along with materials made `excess` to defense needs by current arms reduction and dismantlement. It is argued that the availability of these vast materials, either by declared nuclear-weapon states or by technologically advanced nonweapon states, makes it possible for those states to rapidly assemble and deploy nuclear weapons. The second use has quite a different set of connotations. It is derived conceptually from the imagery of computer-generated reality. In this use, one thinks of virtual proliferation and arsenals not in terms of the physical hardware required to make the bomb but rather in terms of the knowledge/experience required to design, assemble, and deploy the arsenal. Virtual weapons are a physics reality and cannot be ignored in a world where knowledge, experience, materials, and other requirements to make nuclear weapons are widespread, and where dramatic army reductions and, in some cases, disarmament are realities. These concepts are useful in defining a continuum of virtual capabilities, ranging from those at the low end that derive from general technology diffusion and the existence of nuclear energy programs to those at the high end that involve conscious decisions to develop or maintain militarily significant nuclear-weapon capabilities.

  1. 3D imaging by fast deconvolution algorithm in short-range UWB radar for concealed weapon detection

    NARCIS (Netherlands)

    Savelyev, T.; Yarovoy, A.

    2013-01-01

    A fast imaging algorithm for real-time use in short-range (ultra-wideband) radar with synthetic or real-array aperture is proposed. The reflected field is presented here as a convolution of the target reflectivity and point spread function (PSF) of the imaging system. To obtain a focused 3D image,

  2. Shooting Performance as a Function of Shooters’ Anthropometrics, Weapon Design Attributes, Firing Position, Range, and Sex

    Science.gov (United States)

    2014-10-01

    neck • Horizontal range of motion for the torso • Internal and external rotation of the shoulders • Back flexion 6.1.5 Strength and Endurance...of Motion (degrees) Neck Horizontal Torso Horizontal Internal Shoulder Rotation External Shoulder Rotation Back Flexion ...length, and rightward horizontal neck rotation may predict shooting performance under time pressure while firing from either a reflexive firing

  3. What determines a species' geographical range? Thermal biology and latitudinal range size relationships in European diving beetles (Coleoptera: Dytiscidae).

    Science.gov (United States)

    Calosi, Piero; Bilton, David T; Spicer, John I; Votier, Stephen C; Atfield, Andrew

    2010-01-01

    1. The geographical range sizes of individual species vary considerably in extent, although the factors underlying this variation remain poorly understood, and could include a number of ecological and evolutionary processes. A favoured explanation for range size variation is that this result from differences in fundamental niche breadths, suggesting a key role for physiology in determining range size, although to date empirical tests of these ideas remain limited. 2. Here we explore relationships between thermal physiology and biogeography, whilst controlling for possible differences in dispersal ability and phylogenetic relatedness, across 14 ecologically similar congeners which differ in geographical range extent; European diving beetles of the genus Deronectes Sharp (Coleoptera, Dytiscidae). Absolute upper and lower temperature tolerance and acclimatory abilities are determined for populations of each species, following acclimation in the laboratory. 3. Absolute thermal tolerance range is the best predictor of both species' latitudinal range extent and position, differences in dispersal ability (based on wing size) apparently being less important in this group. In addition, species' northern and southern range limits are related to their tolerance of low and high temperatures respectively. In all cases, absolute temperature tolerances, rather than acclimatory abilities are the best predictors of range parameters, whilst the use of independent contrasts suggested that species' thermal acclimation abilities may also relate to biogeography, although increased acclimatory ability does not appear to be associated with increased range size. 4. Our study is the first to provide empirical support for a relationship between thermal physiology and range size variation in widespread and restricted species, conducted using the same experimental design, within a phylogenetically and ecologically controlled framework.

  4. Tactical laser weapons and other directed-energy weapons

    Science.gov (United States)

    Wang, Rongrui

    1993-07-01

    This paper briefly introduces the current development status of three directed-energy weapons: laser weapons, radio frequency/microwave weapons, and charged-particle-beam weapons. Among them, the tactical laser weapon may be the first to find application.

  5. Top-down and bottom-up forces interact at thermal range extremes on American lobster.

    Science.gov (United States)

    Boudreau, Stephanie A; Anderson, Sean C; Worm, Boris

    2015-05-01

    Exploited marine populations are thought to be regulated by the effects of fishing, species interactions and climate. Yet, it is unclear how these forces interact and vary across a species' range. We conducted a meta-analysis of American lobster (Homarus americanus) abundance data throughout the entirety of the species' range, testing competing hypotheses about bottom-up (climate, temperature) vs. top-down (predation, fishing) regulation along a strong thermal gradient. Our results suggest an interaction between predation and thermal range - predation effects dominated at the cold and warm extremes, but not at the centre of the species' range. Similarly, there was consistent support for a positive climate effect on lobster recruitment at warm range extremes. In contrast, fishing effort followed, rather than led changes in lobster abundance over time. Our analysis suggests that the relative effects of top-down and bottom-up forcing in regulating marine populations may intensify at thermal range boundaries and weaken at the core of a species' range. © 2014 The Authors. Journal of Animal Ecology © 2014 British Ecological Society.

  6. Thermal Conductivity of High Performance Concrete in Wide Temperature and Moisture Ranges

    Directory of Open Access Journals (Sweden)

    J. Toman

    2001-01-01

    Full Text Available The thermal conductivity of two types of high performance concrete was measured in the temperature range from 100 °C to 800 °C and in the moisture range from dry material to saturation water content. A transient measuring method based on analysis of the measured temperature fields was chosen for the high temperature measurements, and a commercial hot wire device was employed in room temperature measurements of the effect of moisture on thermal conductivity. The measured results reveal that both temperature and moisture exhibit significant effects on the values of thermal conductivity, and these effects are quite comparable from the point of view of the magnitude of the observed variations.

  7. Thermal limitation of performance and biogeography in a free-ranging ectotherm: insights from accelerometry.

    Science.gov (United States)

    Gannon, Ruan; Taylor, Matthew D; Suthers, Iain M; Gray, Charles A; van der Meulen, Dylan E; Smith, James A; Payne, Nicholas L

    2014-09-01

    Theoretical and laboratory studies generally show that ectotherm performance increases with temperature to an optimum, and subsequently declines. Several physiological mechanisms probably shape thermal performance curves, but responses of free-ranging animals to temperature variation will represent a compromise between these mechanisms and ecological constraints. Thermal performance data from wild animals balancing physiology and ecology are rare, and this represents a hindrance for predicting population impacts of future temperature change. We used internally implanted accelerometers near the middle of a species' geographical distribution and gill-net catch data near the species' latitudinal extremes to quantify temperature-related activity levels of a wild predatory fish (Platycephalus fuscus). We examined our data in the context of established models of thermal performance, and the relationship between thermal performance thresholds and biogeography. Acceleration data approximated a thermal performance curve, with activity peaking at 23°C but declining rapidly at higher temperatures. Gill-net catch data displayed a similar trend, with a temperature-associated increase and decrease in catch rates in temperate and tropical regions, respectively. Extrapolated estimates of zero activity (CTmin and CTmax) from the accelerometers were similar to the minimum and maximum mean monthly water temperatures experienced at the southern and northern (respectively) limits of the species distribution, consistent with performance-limited biogeography in this species. These data highlight the fundamental influence of temperature on ectotherm performance, and how thermal performance limits may shape biogeography. Biologging approaches are rarely used to examine thermal performance curves in free-ranging animals, but these may be central to understanding the trade-offs between physiology and ecology that constrain species' biogeographies and determine the susceptibility of

  8. A comparison and appraisal of a comprehensive range of human thermal climate indices.

    Science.gov (United States)

    de Freitas, C R; Grigorieva, E A

    2017-03-01

    Numerous human thermal climate indices have been proposed. It is a manifestation of the perceived importance of the thermal environment within the scientific community and a desire to quantify it. Schemes used differ in approach according to the number of variables taken into account, the rationale employed, and the particular design for application. They also vary considerably in type and quality, method used to express output, as well as in several other aspects. In light of this, a three-stage project was undertaken to deliver a comprehensive documentation, classification, and overall evaluation of the full range of existing human thermal climate indices. The first stage of the project produced a comprehensive register of as many thermal indices as could be found, 165 in all. The second stage devised a sorting scheme of these human thermal climate indices that grouped them according to eight primary classification categories. This, the third stage of the project, evaluates the indices. Six evaluation criteria, namely validity, usability, transparency, sophistication, completeness, and scope, are used collectively as evaluation criteria to rate each index scheme. The evaluation criteria are used to assign a score that varies between 1 and 5, 5 being the highest. The indices with the highest in each of the eight primary classification categories are discussed. The work is the final stage of a study of the all human thermal climatic indices that could be found in literature. Others have considered the topic, but this study is the first detailed, genuinely comprehensive, and systematic comparison. The results make it simpler to locate and compare indices. It is now easier for users to reflect on the merits of all available thermal indices and decide which is most suitable for a particular application or investigation.

  9. Nuclear weapons modernizations

    Energy Technology Data Exchange (ETDEWEB)

    Kristensen, Hans M. [Federation of American Scientists, Washington, DC (United States)

    2014-05-09

    This article reviews the nuclear weapons modernization programs underway in the world's nine nuclear weapons states. It concludes that despite significant reductions in overall weapons inventories since the end of the Cold War, the pace of reductions is slowing - four of the nuclear weapons states are even increasing their arsenals, and all the nuclear weapons states are busy modernizing their remaining arsenals in what appears to be a dynamic and counterproductive nuclear competition. The author questions whether perpetual modernization combined with no specific plan for the elimination of nuclear weapons is consistent with the nuclear Non-Proliferation Treaty and concludes that new limits on nuclear modernizations are needed.

  10. Recapitalizing Nuclear Weapons

    National Research Council Canada - National Science Library

    Vaughan, Edgar M

    2007-01-01

    The US nuclear weapons stockpile is aging and undergoing an extensive and expensive life-extension program to ensure the continuing safety, security, and reliability of the legacy weapons well into the future...

  11. Robust tracking of respiratory rate in high-dynamic range scenes using mobile thermal imaging

    Science.gov (United States)

    Cho, Youngjun; Julier, Simon J.; Marquardt, Nicolai; Bianchi-Berthouze, Nadia

    2017-01-01

    The ability to monitor the respiratory rate, one of the vital signs, is extremely important for the medical treatment, healthcare and fitness sectors. In many situations, mobile methods, which allow users to undertake everyday activities, are required. However, current monitoring systems can be obtrusive, requiring users to wear respiration belts or nasal probes. Alternatively, contactless digital image sensor based remote-photoplethysmography (PPG) can be used. However, remote PPG requires an ambient source of light, and does not work properly in dark places or under varying lighting conditions. Recent advances in thermographic systems have shrunk their size, weight and cost, to the point where it is possible to create smart-phone based respiration rate monitoring devices that are not affected by lighting conditions. However, mobile thermal imaging is challenged in scenes with high thermal dynamic ranges (e.g. due to the different environmental temperature distributions indoors and outdoors). This challenge is further amplified by general problems such as motion artifacts and low spatial resolution, leading to unreliable breathing signals. In this paper, we propose a novel and robust approach for respiration tracking which compensates for the negative effects of variations in the ambient temperature and motion artifacts and can accurately extract breathing rates in highly dynamic thermal scenes. The approach is based on tracking the nostril of the user and using local temperature variations to infer inhalation and exhalation cycles. It has three main contributions. The first is a novel Optimal Quantization technique which adaptively constructs a color mapping of absolute temperature to improve segmentation, classification and tracking. The second is the Thermal Gradient Flow method that computes thermal gradient magnitude maps to enhance the accuracy of the nostril region tracking. Finally, we introduce the Thermal Voxel method to increase the reliability of the

  12. Robust tracking of respiratory rate in high-dynamic range scenes using mobile thermal imaging.

    Science.gov (United States)

    Cho, Youngjun; Julier, Simon J; Marquardt, Nicolai; Bianchi-Berthouze, Nadia

    2017-10-01

    The ability to monitor the respiratory rate, one of the vital signs, is extremely important for the medical treatment, healthcare and fitness sectors. In many situations, mobile methods, which allow users to undertake everyday activities, are required. However, current monitoring systems can be obtrusive, requiring users to wear respiration belts or nasal probes. Alternatively, contactless digital image sensor based remote-photoplethysmography (PPG) can be used. However, remote PPG requires an ambient source of light, and does not work properly in dark places or under varying lighting conditions. Recent advances in thermographic systems have shrunk their size, weight and cost, to the point where it is possible to create smart-phone based respiration rate monitoring devices that are not affected by lighting conditions. However, mobile thermal imaging is challenged in scenes with high thermal dynamic ranges (e.g. due to the different environmental temperature distributions indoors and outdoors). This challenge is further amplified by general problems such as motion artifacts and low spatial resolution, leading to unreliable breathing signals. In this paper, we propose a novel and robust approach for respiration tracking which compensates for the negative effects of variations in the ambient temperature and motion artifacts and can accurately extract breathing rates in highly dynamic thermal scenes. The approach is based on tracking the nostril of the user and using local temperature variations to infer inhalation and exhalation cycles. It has three main contributions. The first is a novel Optimal Quantization technique which adaptively constructs a color mapping of absolute temperature to improve segmentation, classification and tracking. The second is the Thermal Gradient Flow method that computes thermal gradient magnitude maps to enhance the accuracy of the nostril region tracking. Finally, we introduce the Thermal Voxel method to increase the reliability of the

  13. A miniature infrared sight for both weapon-mounted and handheld security applications

    Science.gov (United States)

    Kostrzewa, Joseph; Terre, William A.; Frank, Jeff; Malmberg, Roy; Switzer, Larry; Antesberger, Wayne; Newsome, Gwendolyn

    2004-08-01

    Thermal weapon sights have been used by the U.S. military for decades. More recently, there has been a growing interest in infrared imagers for paramilitary and civilian applications such as law-enforcement and homeland defense. However, traditional weapon sights are not always ideal products for these applications because they do not typically have form-factor or features allowing them to be readily employed as general-purpose imagers off the weapon. Simply stated, most law-enforcement agencies cannot afford a dedicated sniper scope. Instead, this market demands a thermal imager that can be employed in a variety of situations, both weapon-mounted and handheld. Described herein is a new infrared sight that provides this multi-use capability. Based around the Omega imaging core developed by Indigo Systems, this lightweight system employs a unique housing design that mounts to a weapon rail or tripod or is held comfortably in one hand for use as a short-range "pocket scope". Key aspects of the design are discussed, with particular focus on ergonomics, human factors, and advanced features that enhance its utility in a multi-use role.

  14. Thermal radiation of Er doped dielectric crystals: Probing the range of applicability of the Kirchhoff law

    CERN Document Server

    Tanyi, Ekembu K; Narimanov, Evgenii E; Noginov, M A

    2016-01-01

    The Kirchhoff law of thermal radiation, relating emissivity {\\epsilon} and absorptance {\\alpha}, has been originally formulated for opaque bodies in thermodynamic equilibrium with the environment. However, in many systems of practical importance, both assumptions are often not satisfied. In this work, we revisit the century-old law and examine the limits of its applicability in an example of Er:YAG and Er:YLF dielectric crystals, potential radiation converters for thermophotovoltaic applications. In our experiments, the (80 at.%) Er:YAG crystal was opaque between 1.45 {\\mu}m and 1.64 {\\mu}m. In this spectral range, its absorptance {\\alpha}({\\lambda}) is spectrally flat and differentiates from unity only by a small amount of reflection. The shape of the emissivity spectrum {\\epsilon}({\\lambda}) closely matches that of absorptance {\\alpha}({\\lambda}), suggesting that the Kirchhoff law can adequately describe thermal radiation of opaque bodies, even if the requirement of thermodynamic equilibrium is not satisfie...

  15. Gene expression under thermal stress varies across a geographical range expansion front.

    Science.gov (United States)

    Lancaster, Lesley T; Dudaniec, Rachael Y; Chauhan, Pallavi; Wellenreuther, Maren; Svensson, Erik I; Hansson, Bengt

    2016-03-01

    Many ectothermic species are currently expanding their distributions polewards due to anthropogenic global warming. Molecular genetic mechanisms facilitating range expansion under these conditions are largely unknown, but understanding these could help mitigate expanding pests and disease vectors, or help explain why some species fail to track changing climates. Here, using RNA-seq data, we examine genomewide changes in gene expression under heat and cold stress in the range-expanding damselfly Ischnura elegans in northern Europe. We find that both the number of genes involved and levels of gene expression under heat stress have become attenuated during the expansion, consistent with a previously reported release from selection on heat tolerances as species move polewards. Genes upregulated under cold stress differed between core and edge populations, corroborating previously reported rapid adaptation to cooler climates at the expansion front. Expression of sixty-nine genes exhibited a region x treatment effect; these were primarily upregulated in response to heat stress in core populations but in response to cold stress at the range edge, suggesting that some cellular responses originally adapted to heat stress may switch to cold-stress functionality upon encountering novel thermal selection regimes during range expansion. Transcriptional responses to thermal stress involving heat-shock and neural function genes were largely geographically conserved, while retrotransposon, regulatory, muscle function and defence gene expression patterns were more variable. Flexible mechanisms of cold-stress response and the ability of some genes to shift their function between heat and cold stress might be key mechanisms facilitating rapid poleward expansion in insects. © 2016 John Wiley & Sons Ltd.

  16. Soil thermal regime and geomorphogenesis at Fuentes Carrionas massif (Cantabrian Range, NW Iberian Peninsula).

    Science.gov (United States)

    Pellitero, Ramon; Serrano Cañadas, Enrique

    2015-04-01

    Fuentes Carrionas is a massif within the Cantabrian Range, in NW Iberian Peninsula. Its altitude ranges between 1400 and 2500 meters and its climate is an oceanic/Mediterranean transition one, with cold temperatures and heavy snowfall in the winter/early spring season, and a warm and dry summer season. Due to its outstanding altitude and lithological variety in the Cantabrian Range context, Fuentes Carrionas holds some periglacial activity (gelifluction, frost shattering) which is absent elsewhere in NW Iberian Peninsula. This work is relates the soil thermal regime across the mountain gradient to landforms formation. 14 thermometers (11 i-button, protected in a plastic can, and three UTL data loggers) were buried at a shallow depth (10 cm.) between autumn 2009 and summer 2012. 12 thermometers were placed between 1900 and 2400 m.a.s.l. at 250 meters altitude interval at the four main aspects. Two additional thermometers were place in the Curavacas N face for permafrost identification. Thermometers were calibrated to yield a measurement every 6 hours starting from 8 AM during one year's time. Data was collected annually in the summer season. Some additional soil temperature data was obtained from an external project in the same area for the 2007-2009 interval. In this case thermometers were "Hobbo" model, and they were also buried to a shallow depth. Results show a permafrost free mountain range. Annual average soil temperatures range between 1 and 8 degrees Celsius. Snow pack appears as a decisive factor in winter temperatures, as the zero curtain effect can be tracked in many cases. Snow cover patterns show a distinctive behavior between S and N aspects, with a 3 months snow cover on the southern faces and between 6 and 9 at the northern analogues. This cover has a relevant impact on geomorphological processes. There is a clear relation between spring snow melt and solifluction or channelized erosion. Also, snow cover prevents the occurrence of freeze/thaw cycles

  17. Reconversion of nuclear weapons

    CERN Document Server

    Kapitza, Sergei P

    1992-01-01

    The nuclear predicament or nuclear option. Synopsis of three lectures : 1- The physical basis of nuclear technology. Physics of fission. Chain reaction in reactors and weapons. Fission fragments. Separration of isotopes. Radiochemistry.2- Nuclear reactors with slow and fast neutrons. Power, size, fuel and waste. Plutonium production. Dose rate, shielding and health hazard. The lessons of Chernobyl3- Nuclear weapons. Types, energy, blast and fallout. Fusion and hydrogen bombs. What to do with nuclear weapons when you cannot use them? Testing. Nonmilittary use. Can we get rid of the nuclear weapon? Nuclear proliferation. Is there a nuclear future?

  18. Thermal niche evolution and geographical range expansion in a species complex of western Mediterranean diving beetles.

    Science.gov (United States)

    Hidalgo-Galiana, Amparo; Sánchez-Fernández, David; Bilton, David T; Cieslak, Alexandra; Ribera, Ignacio

    2014-09-04

    Species thermal requirements are one of the principal determinants of their ecology and biogeography, although our understanding of the interplay between these factors is limited by the paucity of integrative empirical studies. Here we use empirically collected thermal tolerance data in combination with molecular phylogenetics/phylogeography and ecological niche modelling to study the evolution of a clade of three western Mediterranean diving beetles, the Agabus brunneus complex. The preferred mitochondrial DNA topology recovered A. ramblae (North Africa, east Iberia and Balearic islands) as paraphyletic, with A. brunneus (widespread in the southwestern Mediterranean) and A. rufulus (Corsica and Sardinia) nested within it, with an estimated origin between 0.60-0.25 Ma. All three species were, however, recovered as monophyletic using nuclear DNA markers. A Bayesian skyline plot suggested demographic expansion in the clade at the onset of the last glacial cycle. The species thermal tolerances differ significantly, with A. brunneus able to tolerate lower temperatures than the other taxa. The climatic niche of the three species also differs, with A. ramblae occupying more arid and seasonal areas, with a higher minimum temperature in the coldest month. The estimated potential distribution for both A. brunneus and A. ramblae was most restricted in the last interglacial, becoming increasingly wider through the last glacial and the Holocene. The A. brunneus complex diversified in the late Pleistocene, most likely in south Iberia after colonization from Morocco. Insular forms did not differentiate substantially in morphology or ecology, but A. brunneus evolved a wider tolerance to cold, which appeared to have facilitated its geographic expansion. Both A. brunneus and A. ramblae expanded their ranges during the last glacial, although they have not occupied areas beyond their LGM potential distribution except for isolated populations of A. brunneus in France and England. On

  19. Behavioral thermal tolerances of free-ranging rattlesnakes (Crotalus oreganus) during the summer foraging season.

    Science.gov (United States)

    Putman, Breanna J; Clark, Rulon W

    2017-04-01

    Increasing temperature due to climate change is one of the greatest challenges for wildlife worldwide. Behavioral data on free-ranging individuals is necessary to determine at what temperatures animals modify activity as this would determine their capacity to continue to move, forage, and mate under altered thermal regimes. In particular, high temperatures could limit available surface activity time and time spent on fitness-related activities. Conversely, performance, such as feeding rate, can increase with temperature potentially having positive fitness effects. Here, we examine how the hunting behaviors of free-ranging Northern Pacific Rattlesnakes (Crotalus oreganus) associate with air temperature and body temperature. We continuously recorded snakes in the field using videography, capturing behaviors rarely considered in past studies such as movements in and out of refuge and strikes on prey. We found that as mean daily air temperature increased, hunting activity and the likelihood of hunting at night decreased, while the number of movements and distance moved per day increased. Snakes typically retreated to refuge before body temperatures reached 31°C. Body temperatures of snakes hunting on the surface were lower compared to temperatures of non-hunting snakes in refuge in the morning, while this relationship was inverted in the afternoon. Snake body size influenced the disparity of these temperatures. Finally, strike initiation and success occurred across a wide range of body temperatures, indicating hunting performance may not be strongly constrained by temperature. These results on the temperatures at which free-ranging rattlesnakes exhibit fitness-related behaviors could be valuable for understanding their vulnerabilities to future climates. Copyright © 2017 Elsevier Ltd. All rights reserved.

  20. Optimization of Aimpoints for Coordinate Seeking Weapons

    Science.gov (United States)

    2015-09-01

    aiming) and independent (ballistic) errors are taken into account, before utilizing each of the three damage functions representing the weapon. A Monte...into account, before utilizing each of the three damage functions representing the weapon. A Monte-Carlo simulation method is used to calculate the...Rectangular Cookie Cutter RDF Rectangular Damage Function REP Range Error Probable xvi SSPD Single Sortie Probability of Damage TLE Target Location

  1. Advanced Spectroscopic and Thermal Imaging Instrumentation for Shock Tube and Ballistic Range Facilities

    Science.gov (United States)

    Grinstead, Jay H.; Wilder, Michael C.; Reda, Daniel C.; Cruden, Brett A.; Bogdanoff, David W.

    2010-01-01

    The Electric Arc Shock Tube (EAST) facility and Hypervelocity Free Flight Aerodynamic Facility (HFFAF, an aeroballistic range) at NASA Ames support basic research in aerothermodynamic phenomena of atmospheric entry, specifically shock layer radiation spectroscopy, convective and radiative heat transfer, and transition to turbulence. Innovative optical instrumentation has been developed and implemented to meet the challenges posed from obtaining such data in these impulse facilities. Spatially and spectrally resolved measurements of absolute radiance of a travelling shock wave in EAST are acquired using multiplexed, time-gated imaging spectrographs. Nearly complete spectral coverage from the vacuum ultraviolet to the near infrared is possible in a single experiment. Time-gated thermal imaging of ballistic range models in flight enables quantitative, global measurements of surface temperature. These images can be interpreted to determine convective heat transfer rates and reveal transition to turbulence due to isolated and distributed surface roughness at hypersonic velocities. The focus of this paper is a detailed description of the optical instrumentation currently in use in the EAST and HFFAF.

  2. A review of thermal processing in the subsecond range: semiconductors and beyond

    Science.gov (United States)

    Rebohle, Lars; Prucnal, Slawomir; Skorupa, Wolfgang

    2016-10-01

    Thermal processing in the subsecond range comprises modern, non-equilibrium annealing techniques which allow various material modifications at the surface without affecting the bulk. Flash lamp annealing (FLA) is one of the most diverse methods for short-time annealing with applications ranging from the classical field of semiconductor doping to the treatment of polymers and flexible substrates. It still continues to extend its use to other material classes and applications, and is becoming of interest for an increasing number of users. In this review we present a short, but comprehensive and consistent picture of the current state-of-the-art of FLA, sometimes also called pulsed light sintering. In the first part we take a closer look at the physical and technological background, namely the electrical and optical specifications of flash lamps, the resulting temperature profiles, and the corresponding implications for process-relevant parameters such as reproducibility and homogeneity. The second part briefly considers the various applications of FLA, starting with the classical task of defect minimization and ultra-shallow junction formation in Si, followed by further applications in Si technology, namely in the fields of hyperdoping, crystallization of thin amorphous films, and photovoltaics. Subsequent chapters cover the topics of doping and crystallization in Ge and silicon carbide, doping of III-V semiconductors, diluted magnetic semiconductors, III-V nanocluster synthesis in Si, annealing of transparent conductive oxides and high-k materials, nanoclusters in dielectric matrices, and the use of FLA for flexible substrates.

  3. Final Environmental Assessment Eglin Gulf Test and Training Range (EGTTR) Precision Strike Weapons (PSW) Test (5-Year Plan) Eglin Air Force Base, Florida

    Science.gov (United States)

    2005-11-01

    Rachycentridae Cobia Sciaenidae Drums Sphymidae Hammerhead sharks Tropical Sphyraenidae Barracudas Fishes of the eastern Gulf can be characterized by...Dusky shark Carcharinus obscurus C One of the larger shark species of continental shelf waters; occurs in Atlantic and Pacific. Feeds on fish...other sharks , rays, squid, octopus, and starfish. Sand tiger shark Odontaspis taurus C In North America, the sand tiger ranges from the Gulf of

  4. Thermal tolerance ranges and climate variability : A comparison between bivalves from differing climates

    NARCIS (Netherlands)

    Compton, Tanya J.; Rijkenberg, Micha J. A.; Drent, Jan; Piersma, Theunis

    2007-01-01

    The climate variability hypothesis proposes that in variable temperate climates poikilothermic animals have wide thermal tolerance windows, whereas in constant tropical climates they have small thermal tolerance windows. In this study we quantified and compared the upper and lower lethal thermal

  5. Critical percolation phase and thermal Berezinskii-Kosterlitz-Thouless transition in a scale-free network with short-range and long-range random bonds.

    Science.gov (United States)

    Berker, A Nihat; Hinczewski, Michael; Netz, Roland R

    2009-10-01

    Percolation in a scale-free hierarchical network is solved exactly by renormalization-group theory in terms of the different probabilities of short-range and long-range bonds. A phase of critical percolation, with algebraic [Berezinskii-Kosterlitz-Thouless (BKT)] geometric order, occurs in the phase diagram in addition to the ordinary (compact) percolating phase and the nonpercolating phase. It is found that no connection exists between, on the one hand, the onset of this geometric BKT behavior and, on the other hand, the onsets of the highly clustered small-world character of the network and of the thermal BKT transition of the Ising model on this network. Nevertheless, both geometric and thermal BKT behaviors have inverted characters, occurring where disorder is expected, namely, at low bond probability and high temperature, respectively. This may be a general property of long-range networks.

  6. Integrated thermal and micro Coriolis flow sensing system with a dynamic flow range of more than 4 decades

    NARCIS (Netherlands)

    Lötters, Joost Conrad; Lammerink, Theodorus S.J.; Groenesteijn, Jarno; Haneveld, J.; Wiegerink, Remco J.

    2011-01-01

    We have realized a micromachined single chip flow sensing system with an unprecedented ultra-wide dynamic flow range of more than 4 decades, from less than 0.1 up to more than 1000 μl/h. The system comprises both a thermal and a micro Coriolis flow sensor with partially overlapping flow ranges.

  7. No weapons in the weapons lab

    Science.gov (United States)

    Trebino, Rick

    2010-03-01

    I spent 12 years working at a top-secret nuclear-weapons lab that had its own dedicated force of heavily armed security guards. Of course, security-related incidents were rare, so the guards' main challenge was simply staying awake.

  8. Vulnerability of digitized platforms to modern rf electromagnetic weapons

    Science.gov (United States)

    Frater, Michael R.; Ryan, Michael J.

    2001-08-01

    Radio Frequency Directed Energy Weapons (RF DEW) have the potential to disrupt the operation of, or cause the failure of, a broad range of military electronic equipment. Over the past 30 years, there has been considerable effort in the development of these weapons. Recent reports suggest that a number of countries, including the USA and Russia, have fielded such weapons. This paper examines the potential performance of non-nuclear RF DEW.

  9. Pakistans Nuclear Weapons

    Science.gov (United States)

    2016-02-12

    intensity conflict or proxy war in Kashmir , while effectively deterring India at the strategic level. 96 In any case, Pakistani statements suggest that the ...Furthermore, continued Indian and Pakistani nuclear weapons development could jeopardize strategic stability between the two countries. For a...context where these broader tensions and conflicts are present. 1 Pakistani efforts to improve the security of its nuclear weapons have been ongoing

  10. Nuclear Weapons Complex reconfiguration study

    Energy Technology Data Exchange (ETDEWEB)

    1991-01-01

    Shortly after assuming duties as Secretary of Energy, I reviewed the Nuclear Weapons Complex Modernization Report'' submitted to the Congress in January 1989 as required by the National Defense Authorization Act of 1988 and 1989. My review showed that several of the report's assumptions needed to be re-evaluated. During this eighteen-month review, dramatic world changes forced further reassessments of the future Nuclear Weapons Complex. These changes are reflected in the new report. The new report presents a plan to achieve a reconfigured complex, called Complex-21. Complex-21 would be smaller, less diverse, and less expensive to operated than the Complex of today. Complex-21 would be able to safely and reliability support nuclear deterrent stockpile objectives set forth by the President and funded by the Congress. It would be consistent with realities of the emerging international security environment and flexible enough to accommodate the likely range of deterrent contingencies. In addition, Complex-21 would be constructed and operated to comply with all applicable federal, state, and local laws, regulations, and orders. Achieving Complex-21 will require significant resources. This report provides and organized approach toward selecting the most appropriate configuration for Complex-21, satisfying environmental requirements, and minimizing costs. The alternative -- to continue to use piecemeal fixes to run an antiquated complex -- will be more expensive and provide a less reliable Nuclear Weapons Complex. As a consequence, implementation of the Complex-21 plan is considered necessary to ensure continued viability of our nuclear deterrent.

  11. An Overview of Crowd Control Theory and Considerations for the Employment of Non-Lethal Weapons

    National Research Council Canada - National Science Library

    Grieger, Dion

    2003-01-01

    .... In campaigns such as these, there is a case for the use of non-lethal weapons to complement the existing range of traditional weapons in order to help bridge the gap between responding with lethal...

  12. A method of determination of the thermal diffusivity of refractory powders in the 400-1200 K range

    Energy Technology Data Exchange (ETDEWEB)

    Litovskii, E.Ya.; Bondarenko, S.L.; Fedina, I.G.

    1986-09-01

    This paper describes a method of measurement of the thermal diffusivity of refractory powders at temperatures of 400-2100 K in different gaseous media in the p = 10/sup 2/-10/sup 5/ Pa pressure range. The method developed is based on the rules of steady heating of cylindrical specimens. The calculation equation has a form characteristic of regular conditions of the second order in an infinite cylinder with corrections for the deviation from quasisteadiness and for the nonuniformity of the temperature field in the specimen. Thermal diffusivities of magnesite powder and PIT-1 yttrium oxide powder are shown in different gaseous media. The method developed possesses satisfactory accuracy and makes it possible to obtain information on the thermal divusivity and conductivity of refractory powders in a broad temperature range and in the area of high temperature.

  13. [Chemical weapons and chemical terrorism].

    Science.gov (United States)

    Nakamura, Katsumi

    2005-10-01

    Chemical Weapons are kind of Weapons of Mass Destruction (WMD). They were used large quantities in WWI. Historically, large quantities usage like WWI was not recorded, but small usage has appeared now and then. Chemical weapons are so called "Nuclear weapon for poor countrys" because it's very easy to produce/possession being possible. They are categorized (1) Nerve Agents, (2) Blister Agents, (3) Cyanide (blood) Agents, (4) Pulmonary Agents, (5) Incapacitating Agents (6) Tear Agents from the viewpoint of human body interaction. In 1997 the Chemical Weapons Convention has taken effect. It prohibits chemical weapons development/production, and Organization for the Prohibition of Chemical Weapons (OPCW) verification regime contributes to the chemical weapons disposal. But possibility of possession/use of weapons of mass destruction by terrorist group represented in one by Matsumoto and Tokyo Subway Sarin Attack, So new chemical terrorism countermeasures are necessary.

  14. Thermal Preference Ranges Correlate with Stable Signals of Universal Stress Markers in Lake Baikal Endemic and Holarctic Amphipods.

    Directory of Open Access Journals (Sweden)

    Denis Axenov-Gribanov

    Full Text Available Temperature is the most pervasive abiotic environmental factor for aquatic organisms. Fluctuations in temperature range lead to changes in metabolic performance. Here, we aimed to identify whether surpassing the thermal preference zones is correlated with shifts in universal cellular stress markers of protein integrity, responses to oxidative stress and lactate content, as indicators of anaerobic metabolism. Exposure of the Lake Baikal endemic amphipod species Eulimnogammarus verrucosus (Gerstfeldt, 1858, Ommatogammarus flavus (Dybowski, 1874 and of the Holarctic amphipod Gammarus lacustris Sars 1863 (Amphipoda, Crustacea to increasing temperatures resulted in elevated heat shock protein 70 (Hsp70 and lactate content, elevated antioxidant enzyme activities (i.e., catalase and peroxidase, and reduced lactate dehydrogenase and glutathione S-transferase activities. Thus, the zone of stability (absence of any significant changes of the studied molecular and biochemical markers correlated with the behaviorally preferred temperatures. We conclude that the thermal behavioral responses of the studied amphipods are directly related to metabolic processes at the cellular level. Thus, the determined thermal ranges may possibly correspond to the thermal optima. This relationship between species-specific behavioral reactions and stress response metabolism may have significant ecological consequences that result in a thermal zone-specific distribution (i.e., depths, feed spectrum, etc. of species. As a consequence, by separating species with different temperature preferences, interspecific competition is reduced, which, in turn, increases a species' Darwinian fitness in its environment.

  15. Evaluation of human thermal comfort ranges in urban climate of winter cities on the example of Erzurum city.

    Science.gov (United States)

    Toy, Süleyman; Kántor, Noémi

    2017-01-01

    Human thermal comfort conditions can be evaluated using various indices based on simple empirical approaches or more complex and reliable human-biometeorological approaches. The latter is based on the energy balance model of the human body, and their calculation is supplemented with computer software. Facilitating the interpretation of results, the generally applied indices express the effects of thermal environment in the well-known temperature unit, just like in the case of the widely used index, the physiologically equivalent temperature (PET). Several studies adopting PET index for characterizing thermal components of climate preferred to organize the resulted PET values into thermal sensation categories in order to demonstrate the spatial and/or temporal characteristics of human thermal comfort conditions. The most general applied PET ranges were derived by Central European researchers, and they are valid for assumed values of internal heat production of light activity and thermal resistance of clothing representing a light business suit. Based on the example of Erzurum city, the present work demonstrates that in a city with harsh winter, the original PET ranges show almost purely discomfort and they seem to be less applicable regarding cold climate conditions. Taking into account 34-year climate data of Erzurum, the annual distribution of PET is presented together with the impact of application of different PET categorization systems, including 8°- and 7°-wide PET intervals. The demonstrated prior analyses lack any questionnaire filed surveys in Erzurum. Thus, as a next step, detailed field investigations would be required with the aim of definition of new PET categorization systems which are relevant for local residents who are adapted to this climatic background, and for tourists who may perform various kinds of winter activities in Erzurum and therefore may perceive the thermal environment more comfortable.

  16. Weapons of mass destruction, WMD.

    Science.gov (United States)

    Vogel, H

    2007-08-01

    Since the invasion into Iraq in 2003, weapons of mass destruction (WMD), have come to general notice; they include today chemical, biological, and atomic/nuclear weapons, (CW, BW, and AW). Radiological findings shall be described. X-ray findings of victims of WMD are described. From CW, own observations are reported. Examples of (possible) X-ray findings of victims of BW are described. AW may induce radiation disease. Exposure to sulfur-lost induces severe bronchitis; if the radiograph shows pulmonary infiltrations, the prognosis is bad; a late consequence maybe bronchiectasis. BW can be based on bacteria, virus or toxins. An approach of the X-ray findings for BW victims is based on the assumption that the disease induced by BW has the same (or a similar) clinic and radiology as that induced by the original microorganism or by the unchanged toxism. This approximation may have its limits, if the germ or toxin has been modified. In survivors of AW, the radiology is probably that of victims of thermal radiation and blast. WMD seem to be a real or a possible threat. They can be used in war, in terrorist attacks, in crime, and in action of secret services. In case that WMD are employed, X-ray diagnostic will be used to evaluate the prognosis (triage) and the risk of infection.

  17. Variation in subsurface thermal characteristics of microrefuges used by range core and peripheral populations of the American pika (Ochotona princeps).

    Science.gov (United States)

    Rodhouse, Thomas J; Hovland, Matthew; Jeffress, Mackenzie R

    2017-03-01

    Microrefuges provide microclimates decoupled from inhospitable regional climate regimes that enable range-peripheral populations to persist and are important to cold-adapted species in an era of accelerated climate change. However, identifying and describing the thermal characteristics of microrefuge habitats is challenging, particularly for mobile organisms in cryptic, patchy habitats. We examined variation in subsurface thermal conditions of microrefuge habitats among different rock substrate types used by the American pika (Ochotona princeps), a climate-sensitive, rock-dwelling Lagomorph. We compared subsurface temperatures in talus and lava substrates in pika survey sites in two US national park units; one park study area on the range periphery and the other in the range core. We deployed paired sensors to examine within-site temperature variation. We hypothesized that subsurface temperatures within occupied sites and structurally complex substrates would be cooler in summer and warmer in winter than unoccupied and less complex sites. Although within-site variability was high, with correlations between paired sensors as low as 47%, we found compelling evidence that pikas occupy microrefuge habitats where subsurface conditions provide more thermal stability than in unoccupied microhabitats. The percentage of days in which microhabitat temperatures were between -2.5 and 25.5°C was significantly higher in occupied sites. Interestingly, thermal conditions were substantially more stable (p < .05) in the lava substrate type identified to be preferentially used by pikas (pahoehoe vs. a'a) in a previous study. Our study and others suggest that thermal stability appears to be the defining characteristic of subsurface microrefuges used by American pikas and is a likely explanation for enigmatic population persistence at the range periphery. Our study exemplifies an integrated approach for studying complex microhabitat conditions, paired with site use surveys and

  18. Primary Polymer Aging Processes Identified from Weapon Headspace Chemicals

    Energy Technology Data Exchange (ETDEWEB)

    Chambers, D M; Bazan, J M; Ithaca, J G

    2002-03-25

    A current focus of our weapon headspace sampling work is the interpretation of the volatile chemical signatures that we are collecting. To help validate our interpretation we have been developing a laboratory-based material aging capability to simulate material decomposition chemistries identified. Key to establishing this capability has been the development of an automated approach to process, analyze, and quantify arrays of material combinations as a function of time and temperature. Our initial approach involves monitoring the formation and migration of volatile compounds produced when a material decomposes. This approach is advantageous in that it is nondestructive and provides a direct comparison with our weapon headspace surveillance initiative. Nevertheless, this approach requires us to identify volatile material residue and decomposition byproducts that are not typically monitored and reported in material aging studies. Similar to our weapon monitoring method, our principle laboratory-based method involves static headspace collection by solid phase microextraction (SPME) followed by gas chromatography/mass spectrometry (GC/MS). SPME is a sorbent collection technique that is ideally suited for preconcentration and delivery of trace gas-phase compounds for analysis by GC. When combined with MS, detection limits are routinely in the low- and sub-ppb ranges, even for semivolatile and polar compounds. To automate this process we incorporated a robotic sample processor configured for SPME collection. The completed system will thermally process, sample, and analyze a material sample. Quantification of the instrument response is another process that has been integrated into the system. The current system screens low-milligram quantities of material for the formation or outgas of small compounds as initial indicators of chemical decomposition. This emerging capability offers us a new approach to identify and non-intrusively monitor decomposition mechanisms that are

  19. Living with nuclear weapons

    Energy Technology Data Exchange (ETDEWEB)

    Carnesale, A.; Doty, P.; Hoffmann, S.; Huntington, S.P.; Nye, J.S. Jr.; Sagan, S.D.

    1983-01-01

    At Harvard President Derek Bok's request, six Harvard professors explain nuclear arms issues to help citizens understand all sides of the national security debates. The goal is to encourage public participation in policy formulation. The book emphasizes that escapism will not improve security; that idealistic plans to eliminate nuclear weapons are a form of escapism. Learning to live with nuclear weapons, they suggest, requires an understanding of the current nuclear predicament and the implications of alternative weapons and policy choices. After reviewing these matters, they emphasize that informed persons will continue to disagree, but that knowledge will improve understanding and appreciation of their differences and improve the quality of policy debates. 54 references, 5 figures, 2 tables. (DCK)

  20. Thermal radiative and thermodynamic properties of solid and liquid uranium and plutonium carbides in the visible-near infrared range

    CERN Document Server

    Fisenko, Anatoliy I

    2016-01-01

    The knowledge of thermal radiative and thermodynamic properties of uranium and plutonium carbides under extreme conditions is essential for designing a new metallic fuel materials for next generation of a nuclear reactor. The present work is devoted to the study of the thermal radiative and thermodynamic properties of liquid and solid uranium and plutonium carbides at their melting/freezing temperatures. The Stefan-Boltzmann law, total energy density, number density of photons, Helmholtz free energy density, internal energy density, enthalpy density, entropy density, heat capacity at constant volume, pressure, and normal total emissivity are calculated using experimental data for the frequency dependence of the normal spectral emissivity of liquid and solid uranium and plutonium carbides in the visible-near infrared range. It is shown that the thermal radiative and thermodynamic functions of uranium carbide have a slight difference during liquid-to-solid transition. Unlike UC, such a difference between these ...

  1. Casualty Estimation for Nuclear and Radiological Weapons

    Science.gov (United States)

    2016-06-01

    Weapons Isotope Symbol Activity (TBq) Mass (kg) Radiation Source Form Cesium-137 137Cs 1.11x105 34.5 β and γ Irradiators: sterilization and food...include ionizing and thermal radiation , and air shock (blast). Ionizing radiation , in particular gamma and neutron radiation , are considered in the...expressed, not surprisingly, as the pressure increase (in pascals (Pa)) above the ambient pressure. The transport of ionizing radiation , in particular gamma

  2. Thermal Conductivity of Magnesium Alloys in the Temperature Range from -125 °C to 400 °C

    Science.gov (United States)

    Lee, Sanghyun; Ham, Hye Jeong; Kwon, Su Yong; Kim, Sok Won; Suh, Chang Min

    2013-12-01

    Magnesium alloys have been widely used in recent years as lightweight structural materials in the manufacturing of automobiles, airplanes, and portable computers. Magnesium alloys have extremely low density (as low as 1738 kg · m-3) and high rigidity, which makes them suitable for such applications. In this study, the thermal conductivity of two different magnesium alloys made by twin-roll casting was investigated using the laser-flash technique and differential scanning calorimetry for thermal diffusivity and specific heat capacity measurements, respectively. The thermal diffusivity of the magnesium alloys, AZ31 and AZ61, was measured over the temperature range from -125 °C to 400 °C. The alloys AZ31 and AZ61 are composed of magnesium, aluminum, and zinc. The thermal conductivity gradually increased with temperature. The densities of AZ31 and AZ61 were 1754 kg · m-3 and 1777 kg · m-3, respectively. The thermal conductivity of AZ31 was about 25 % higher than that of AZ61, and this is attributed to the amount of precipitation.

  3. Effectively control negative thermal expansion of single-phase ferroelectrics of PbTiO3-(Bi,La)FeO3 over a giant range.

    Science.gov (United States)

    Chen, Jun; Wang, Fangfang; Huang, Qingzhen; Hu, Lei; Song, Xiping; Deng, Jinxia; Yu, Ranbo; Xing, Xianran

    2013-01-01

    Control of negative thermal expansion is a fundamentally interesting topic in the negative thermal expansion materials in order for the future applications. However, it is a challenge to control the negative thermal expansion in individual pure materials over a large scale. Here, we report an effective way to control the coefficient of thermal expansion from a giant negative to a near zero thermal expansion by means of adjusting the spontaneous volume ferroelectrostriction (SVFS) in the system of PbTiO3-(Bi,La)FeO3 ferroelectrics. The adjustable range of thermal expansion contains most negative thermal expansion materials. The abnormal property of negative or zero thermal expansion previously observed in ferroelectrics is well understood according to the present new concept of spontaneous volume ferroelectrostriction. The present studies could be useful to control of thermal expansion of ferroelectrics, and could be extended to multiferroic materials whose properties of both ferroelectricity and magnetism are coupled with thermal expansion.

  4. Computation of Weapons Systems Effectiveness

    Science.gov (United States)

    2013-09-01

    Probability of Damage, Weapon Trajectory, Weapon Accuracy 15. NUMBER OF PAGES 175 16. PRICE CODE 17. SECURITY CLASSIFICATION OF REPORT Unclassified...to the single weapon unitary target module as the damage function for area targets is in the form of a rectangle cookie cutter instead of a Carleton...specific target types such as bridges, underground bunkers and tunnels, some of which require the usage of advanced penetrator weapons. Another area

  5. Applying Agile MethodstoWeapon/Weapon-Related Software

    Energy Technology Data Exchange (ETDEWEB)

    Adams, D; Armendariz, M; Blackledge, M; Campbell, F; Cloninger, M; Cox, L; Davis, J; Elliott, M; Granger, K; Hans, S; Kuhn, C; Lackner, M; Loo, P; Matthews, S; Morrell, K; Owens, C; Peercy, D; Pope, G; Quirk, R; Schilling, D; Stewart, A; Tran, A; Ward, R; Williamson, M

    2007-05-02

    This white paper provides information and guidance to the Department of Energy (DOE) sites on Agile software development methods and the impact of their application on weapon/weapon-related software development. The purpose of this white paper is to provide an overview of Agile methods, examine the accepted interpretations/uses/practices of these methodologies, and discuss the applicability of Agile methods with respect to Nuclear Weapons Complex (NWC) Technical Business Practices (TBPs). It also provides recommendations on the application of Agile methods to the development of weapon/weapon-related software.

  6. Nuclear Weapons and Schools.

    Science.gov (United States)

    Howie, David I.

    1984-01-01

    The growing debate on nuclear weapons in recent years has begun to make inroads into school curricula. Elementary and secondary school teachers now face the important task of educating their students on issues relating to nuclear war without indoctrinating them to a particular point of view. (JBM)

  7. Names and Weapons.

    Science.gov (United States)

    Kauffman, Charles

    1989-01-01

    Traces the theoretical significance of using names as titles for situations, and applies this analysis to the United States' intercontinental ballistic missile (ICBM) programs. Argues that the names given to ICBMs preserve their utility as weapons by linking them to the myths of the nineteenth-century western frontier. (MM)

  8. Bird population trends are linearly affected by climate change along species thermal ranges

    National Research Council Canada - National Science Library

    Frédéric Jiguet; Vincent Devictor; Richard Ottvall; Chris Van Turnhout; Henk Van der Jeugd; Åke Lindström

    2010-01-01

    Beyond the effects of temperature increase on local population trends and on species distribution shifts, how populations of a given species are affected by climate change along a species range is still unclear...

  9. Bird population trends are linearly affected by climate change along species thermal ranges

    NARCIS (Netherlands)

    Jiguet, F.; Devictor, V.; Ottvall, R.; Van Turnhout, C.; Van der Jeugd, H.P.; Lindström, Å.

    2010-01-01

    Beyond the effects of temperature increase on local population trends and on species distribution shifts, how populations of a given species are affected by climate change along a species range is still unclear. We tested whether and how species responses to climate change are related to the

  10. Thermal tolerance and preference of exploited turbinid snails near their range limit in a global warming hotspot.

    Science.gov (United States)

    Lah, Roslizawati Ab; Benkendorff, Kirsten; Bucher, Daniel

    2017-02-01

    Predicted global climate change has prompted numerous studies of thermal tolerances of marine species. The upper thermal tolerance is unknown for most marine species, but will determine their vulnerability to ocean warming. Gastropods in the family Turbinidae are widely harvested for human consumption. To investigate the responses of turbinid snails to future conditions we determined critical thermal maxima (CTMax) and preferred temperatures of Turbo militaris and Lunella undulata from the tropical-temperate overlap region of northern New South Wales, on the Australian east coast. CTMax were determined at two warming rates: 1°C/30min and 1°C/12h. The number of snails that lost attachment to the tank wall was recorded at each temperature increment. At the faster rate, T. militaris had a significantly higher CTMax (34.0°C) than L. undulata (32.2°C). At the slower rate the mean of both species was lower and there was no significant difference between them (29.4°C for T. militaris and 29.6°C for L. undulata). This is consistent with differences in thermal inertia possibly allowing animals to tolerate short periods at higher temperatures than is possible during longer exposure times, but other mechanisms are not discounted. The thermoregulatory behaviour of the turban snails was determined in a horizontal thermal gradient. Both species actively sought out particular temperatures along the gradient, suggesting that behavioural responses may be important in ameliorating short-term temperature changes. The preferred temperatures of both species were higher at night (24.0°C and 26.0°C) than during the day (22.0°C and 23.9°C). As the snails approached their preferred temperature, net hourly displacement decreased. Preferred temperatures were within the average seasonal seawater temperature range in this region. However, with future predicted water temperature trends, the species could experience increased periods of thermal stress, possibly exceeding CTMax and

  11. US nuclear weapons policy

    Energy Technology Data Exchange (ETDEWEB)

    May, M.

    1990-12-05

    We are closing chapter one'' of the nuclear age. Whatever happens to the Soviet Union and to Europe, some of the major determinants of nuclear policy will not be what they have been for the last forty-five years. Part of the task for US nuclear weapons policy is to adapt its nuclear forces and the oganizations managing them to the present, highly uncertain, but not urgently competitive situation between the US and the Soviet Union. Containment is no longer the appropriate watchword. Stabilization in the face of uncertainty, a more complicated and politically less readily communicable goal, may come closer. A second and more difficult part of the task is to deal with what may be the greatest potential source of danger to come out of the end of the cold war: the breakup of some of the cooperative institutions that managed the nuclear threat and were created by the cold war. These cooperative institutions, principally the North Atlantic Treaty Organization (NATO), the Warsaw Pact, the US-Japan alliance, were not created specifically to manage the nuclear threat, but manage it they did. A third task for nuclear weapons policy is that of dealing with nuclear proliferation under modern conditions when the technologies needed to field effective nuclear weapons systems and their command and control apparatus are ever more widely available, and the leverage over some potential proliferators, which stemmed from superpower military support, is likely to be on the wane. This paper will make some suggestions regarding these tasks, bearing in mind that the unsettled nature of that part of the world most likely to become involved in nuclear weapons decisions today must make any suggestions tentative and the allowance for surprise more than usually important.

  12. Thermal Stability of Austempered Ductile Iron Evaluated in a Temperature Range of 20-300K

    Directory of Open Access Journals (Sweden)

    Dawid MYSZKA

    2016-05-01

    Full Text Available The aim of this article was to determine through changes in magnetic properties the stability of the austempered ductile iron (ADI microstructure during temperature changes in a range of 20 – 300 K. The measurements were taken in a vibrating sample magnetometer (VSM using Fe27Ni2TiMoAlNb austenitic stainless steel and four types of austempered ductile iron obtained under various heat treatment conditions. The plotted curves showing changes in the magnetisation degree as a function of temperature had a number of characteristic points illustrating changes taking place in the microstructure. For each of the materials examined, the martensite start temperature Ms and the temperature range within which the martensitic transformation takes place were identified.

  13. Quantifying the Contribution of Thermally Driven Recirculation to a High-Ozone Event Along the Colorado Front Range Using Lidar

    Science.gov (United States)

    Sullivan, John T.; McGee, Thomas J.; Langford, Andrew O.; Alvarez, Raul J., II; Senff, Christoph; Reddy, Patrick J.; Thompson, Anne M.; Twigg, Laurence W.; Sumnicht, Grant K.; Lee, Pius; hide

    2016-01-01

    A high-ozone (O3) pollution episode was observed on 22 July 2014 during the concurrent Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) and Front Range Air Pollution and Photochemistry Experiment (FRAPPE) campaigns in northern Colorado. Surface O3 monitors at three regulatory sites exceeded the Environmental Protection Agency (EPA) 2008 National Ambient Air Quality Standard (NAAQS) daily maximum 8h average (MDA8) of 75ppbv. To further characterize the polluted air mass and assess transport throughout the event, measurements are presented from O3 and wind profilers, O3-sondes, aircraft, and surface-monitoring sites. Observations indicate that thermally driven upslope flow was established throughout the Colorado Front Range during the pollution episode. As the thermally driven flow persisted throughout the day, O3 concentrations increased and affected high-elevation Rocky Mountain sites. These observations, coupled with modeling analyses, demonstrate a westerly return flow of polluted air aloft, indicating that the mountain-plains solenoid circulation was established and impacted surface conditions within the Front Range.

  14. The Effects of Nuclear Weapons. Third edition

    Energy Technology Data Exchange (ETDEWEB)

    Glasstone, S; Dolan, P J

    1977-01-01

    Since the last edition of ''The Effects of Nuclear Weapons'' in 1962 much new information has become available concerning nuclear weapon effects. This has come in part from the series of atmospheric tests, including several at very high altitudes, conducted in the Pacific Ocean area in 1962. In addition, laboratory studies, theoretical calculations, and computer simulations have provided a better understanding of the various effects. A new chapter has been added on the electromagnetic pulse. The chapter titles are as follows: general principles of nuclear explosions; descriptions of nuclear explosions; air blast phenomena in air and surface bursts; air blast loading; structural damage from air blast; shock effects of surface and subsurface bursts; thermal radiation and its effects; initial nuclear radiation; residual nuclear radiation and fallout; radio and radar effects; the electromagnetic pulse and its effects; and biological effects. (LTN)

  15. Thermal imaging for current D&S priorities

    Science.gov (United States)

    Craig, Robert; Parsons, John F.

    2012-11-01

    Supplying thermal imagers for today's operational needs requires flexibility, responsiveness and ever reducing costs. This paper will use the latest thermal imager development in the Catherine range from Thales UK to address the technical interactions with such issues as modularity, re-use, regions of deployment and supply chain management. All this is in the context of the increasingly public operations and the pressures on validating performance especially when weapon aiming is involved.

  16. Weapons barrel life cycle determination

    Directory of Open Access Journals (Sweden)

    Nebojša Pene Hristov

    2013-10-01

    most important requirements of Military Standards (muzzle velocity, caliber size and shooting accuracy. In studies of barrel wear, there are numerous theories that explain barrel wear as thermal, mechanical and chemical effects of the projectile and propellant gas on the inner tube surface. It was found that barrel wear is a result of simultaneous effects of all factors mutually linked and very complex, so that, theoretically speaking, they cannot be uniformly determined. The extent of effects of particular factors in the wear process depends on the type of weapon systems and exploitation conditions (mode of fire, intensity and mode of barrel cooling, maintenance, storage conditions, etc.. It is considered that, for small arms, the main factor of wear is the effect of projectiles on the barrel while for artillery weapon barrels it is the erosive effect of powder gases. A life-death barrel which is determined by "ballistic death," is not necessary to be discarded, ie reparation can be done by "new calibration". The procedure of barrel reparation is economically acceptable and gives the possibility of extension of working lifetime and modification of the gun barrel. METHODS OF BARREL LIFE-TIME CALCULATION The conditions for calculating the gun barrel lifetime are described. Since the barrel lifetime depends primarily on the exploitation regime, the usage procedure (shooting program in the military terminology Is prescribed for each individual weapon in particular. The lifetime empirical calculation methods discussed here comprise the methods of French and Russian scientists, i.e.Justrov, Linte, Gabo and Orlov. They are mainly based on empirical constants and elements of the barrel, bullet, projectile velocity and mode of fire. These methods are only partially reliable and cannot predict with certainty the barrel lifetime, - for example, some expressions state that lifetime increases with the increase in initial velocity and barrel caliber, which is incorrect and contrary

  17. The morality of weapons research.

    Science.gov (United States)

    Forge, John

    2004-07-01

    I ask whether weapons research is ever justified. Weapons research is identified as the business of the engineer. It is argued that the engineer has responsibility for the uses to which the tools that he designs can be put, and that responsibility extends to the use of weapons. It is maintained that there are no inherently defensive weapons, and hence there is no such thing as 'defensive' weapons research. The issue then is what responsibilities as a professional the engineer has in regard to such research. An account is given to ground the injunction not to provide the means to harm as a duty for the engineers. This account is not, however, absolutist, and as such it allows justifiable exceptions. The answer to my question is thus not that weapons research is never justified but there must be a strong assurance that the results will only be used as a just means in a just cause.

  18. INITIAL WEAPON SYSTEM SUPPORT.

    Science.gov (United States)

    Program which can improve early support of the combined F4B (Navy)/F4C (AF) Program, and other weapon system programs. The findings, in general, in the...F4 aircraft program support those found in the TITAN II Missile Program which are being implemented by the Air Force, i.e., the value of the use of the...provisioning team concept and of a reduction in the lay-in time of spare parts. There appears to be a requirement for stronger intra-Service support of the aircraft leading to possible economic inter-Service support . (Author)

  19. Weapons Container Stacking Study

    Science.gov (United States)

    1993-09-01

    MONITORING Naval Weapons Station Seal Beach (Code 052), California AGENCY REPORT NUMBER Naval Sea Systems Command ( SEA -07) Same as above 1 1...it srt Uuerd for thr 101j) "lid boluoiil (twoc liguiva 4 mud 5,) li Isolnmi oyaslaeamm ~ vAi l i aUv luiti vubshluims or a cramdle auppurtr’d by...26.50 2649 7 2 CNU-131/E Maverick (Air Force) 25.60 27.30 911 (1) 4 3 CNU-154A/E Walleye 28.00 32.00 2950 6 4 CNU-154B/E Walleye 32.60 28.70 2855 6 5

  20. Vulnerability assessment of a space based weapon platform electronics system exposed to a thermonuclear weapon detonation

    Energy Technology Data Exchange (ETDEWEB)

    Perez, C.L. [North Carolina Univ., Chapel Hill, NC (United States); Johnson, J.O. [Oak Ridge National Lab., TN (United States)

    1994-05-01

    The utilization of reconnaissance/surveillance satellite and weapon platform assets in space will subject the sensitive electronic equipment to a variety of natural and man-made radiation environments. These include Van Allen Belt protons and electrons; galactic and solar flare protons; neutrons, gamma rays, and X-rays from fission and fusion weapons; and directed neutral particle beams and lasers. Electronic equipment, including modem integrated circuits, may undergo permanent or transient changes of the electrical properties of the active components when exposed to these sources of radiation. This report summarizes the results of the Monte Carlo Adjoint Shielding code system -- MASH v1.0 calculations designed to estimate the dose to the critical electronics components of an idealized spaced based weapon platform from neutron and gamma-ray radiation emanating from a thermonuclear weapon detonation. The MASH calculations modeled several source/platform geometry configurations, obtaining results for multiple distances and weapon detonation positions relative to the platform. For certain source/platform orientations, the results indicate vulnerabilities to the C{sup 3} bay critical components box to radiation damage from a nuclear weapon detonation. Neutron protection factors ranged from 0.7 to 3.4 for the three platform configurations analyzed, and gamma-ray protection factors ranged from approximately 1.5 to 9.8. The results further indicate the source has a direct line-of-sight to the critical components box for certain source/platform orientations, regardless of the number of interceptors present. The merits of utilizing the MASH code system for estimating dose and shielding factors for spaced based assets has been demonstrated. The geometry configuration studied here is greatly simplified compared to those that will be encountered in an actual design.

  1. Directed-Energy Weapons: Invisible and Invincible?

    National Research Council Canada - National Science Library

    Deveci, Bayram M

    2007-01-01

    .... What will this century's most powerful weapon be? Directed-energy weapons, which offer advantages over conventional weapons by providing attack at the speed of light, precise targeting, rapid engagement of multiple targets, adjustable damage...

  2. Medical implications of enhanced radiation weapons.

    Science.gov (United States)

    Reeves, Glen I

    2010-12-01

    During the 1960s through 1980s the United States and several other nations developed, and even considered deploying, enhanced-radiation warheads (ERWs). The main effect of ERWs (sometimes called "neutron bombs"), as compared to other types of nuclear weapons, is to enhance radiation casualties while reducing blast and thermal damage to the infrastructure. Five nations were reported to have developed and tested ERWs during this period, but since the termination of the "Cold War" there have been no threats of development, deployment, or use of such weapons. However, if the technology of a quarter of a century ago has been developed, maintained, or even advanced since then, it is conceivable that the grim possibility of future ERW use exists. The type of destruction, initial triage of casualties, distribution of patterns of injury, and medical management of ERWs will be shown to significantly differ from that of fission weapons. Emergency response planners and medical personnel, civilian or military, must be aware of these differences to reduce the horrible consequences of ERW usage and appropriately treat casualties.

  3. The unique signal concept for detonation safety in nuclear weapons

    Energy Technology Data Exchange (ETDEWEB)

    Spray, S.D.; Cooper, J.A.

    1993-06-01

    The purpose of a unique signal (UQS) in a nuclear weapon system is to provide an unambiguous communication of intent to detonate from the UQS information input source device to a stronglink safety device in the weapon in a manner that is highly unlikely to be duplicated or simulated in normal environments and in a broad range of ill-defined abnormal environments. This report presents safety considerations for the design and implementation of UQSs in the context of the overall safety system.

  4. Tracing chlorine sources of thermal and mineral springs along and across the Cascade Range using halogen and chlorine isotope compositions

    Science.gov (United States)

    Cullen, Jeffrey T.; Barnes, Jaime D.; Hurwitz, Shaul; Leeman, William P.

    2015-01-01

    In order to provide constraints on the sources of chlorine in spring waters associated with arc volcanism, the major/minor element concentrations and stable isotope compositions of chlorine, oxygen, and hydrogen were measured in 28 thermal and mineral springs along the Cascade Range in northwestern USA. Chloride concentrations in the springs range from 64 to 19,000 mg/L and View the MathML source values range from +0.2‰ to +1.9‰ (average=+1.0±0.4‰), with no systematic variation along or across the arc, nor correlations with their presumed underlying basement lithologies. Additionally, nine geochemically well-characterized lavas from across the Mt. St. Helens/Mt. Adams region of the Cascade Range (Leeman et al., 2004 and Leeman et al., 2005) were analyzed for their halogen concentrations and Cl isotope compositions. In the arc lavas, Cl and Br concentrations from the volcanic front are higher than in lavas from the forearc and backarc. F and I concentrations progressively decrease from forearc to backarc, similar to the trend documented for B in most arcs. View the MathML source values of the lavas range from −0.1 to +0.8‰ (average = +0.4±0.3‰). Our results suggest that the predominantly positive View the MathML source values observed in the springs are consistent with water interaction with underlying 37Cl-enriched basalt and/or altered oceanic crust, thereby making thermal spring waters a reasonable proxy for the Cl isotope compositions of associated volcanic rocks in the Cascades. However, waters with View the MathML source values >+1.0‰ also suggest additional contributions of chlorine degassed from cooling magmas due to subsurface vapor–liquid HCl fractionation in which Cl is lost to the aqueous fluid phase and 37Cl is concentrated in the ascending magmatic HCl vapor. Future work is necessary to better constrain Cl isotope behavior during volcanic degassing and fluid–rock interaction in order to improve volatile flux estimates through

  5. Study on the Impact of Thermal Agitation on Doppler Coefficient in Epithermal Range for Gd-Bearing Fuel

    Directory of Open Access Journals (Sweden)

    Satoshi Takeda

    2016-01-01

    Full Text Available The impact of thermal agitation on Doppler coefficient for Gd-bearing fuel was analyzed. It was found through the analysis that the impact increases when a small amount of Gd2O3 is added to pure UO2 fuel although the impact decreases for a large amount of Gd2O3. This tendency was discussed with the usage of simplified expression for the difference of Doppler coefficient. The simplified expression was used to consider the tendency, and it was revealed that the tendency mainly comes from the rapid decrement of multiplication factor and the relatively slow decrement of the magnitude of sensitivity coefficient of U-238 capture cross section at low Gd2O3 concentration. Similar tendency which shows a maximum impact on Doppler coefficient at interior concentration is expected for other UO2 fuel with a slight content of strong absorber. This indicates that Doppler coefficient of UO2 fuel system with low content of strong absorber should be analyzed carefully by considering thermal agitation in epithermal range.

  6. 2007-2008 Weapon Systems

    Science.gov (United States)

    2007-01-01

    an operation in Ayn Mana, Iraq, June 26, 2006. WEAPON SYSTEMS 2007–2008 Dear Reader: The weapon systems and equipment described in this reference...Ingersoll- Rand (Campbellsville, KY) Forward Repair System (FRS) 103 UNITED STATES ARMY ACQUISITION PHASE INVESTMENT COMPONENT Global Combat...Lightweight Laser Designator Rangefinder (LLDR) Information Systems Support, Inc. Army Key Management System (AKMS) Ingersoll- Rand Forward Repair

  7. Weapons of mass destruction: radiation.

    Science.gov (United States)

    Neal, Chris J; Moores, Leon E

    2002-03-15

    The purpose of this review is to present a concise overview of the types of radiation, methods of dispersal, injury patterns, and treatment considerations in a scenario involving radiation-based weapons of mass destruction. Radiation-related casualties, although uncommon, are a potential threat because more nations and organizations are developing the technology for producing radioactive substances capable of being used as weapons.

  8. Non-Lethal Weapons: Opportunities for R&D

    Science.gov (United States)

    2004-12-01

    occur naturally in dust devils and thermal puffs, and are even used for propulsion by some fish species. The phenomenon is used by engineers for fuel...SARA’s Vortex Launcher TRES Corps Weapons [23] advertises the PP-100m Puffer , which is said to

  9. Nuclear Weapons Effects: Dust and Air Temperature Environment

    Science.gov (United States)

    The report presents a computer program for calculating the dust and air temperature environment resulting from nuclear weapons detonations. The...cessation of blast winds. Air temperature is treated as a dust-related phenomenon. The ground, heated by thermal radiation prior to arrival of the air

  10. Pakistan's Nuclear Weapons: Proliferation and Security Issues

    National Research Council Canada - National Science Library

    Kerr, Paul; Nikitin, Mary B

    2007-01-01

    Pakistan's nuclear arsenal consists of approximately 60 nuclear warheads. Pakistan continues fissile material production for weapons, and is adding to its weapons production facilities and delivery vehicles...

  11. Parameter-free numerical method for modeling thermal convection in square cavities in a wide range of Rayleigh numbers

    Science.gov (United States)

    Goloviznin, V. M.; Korotkin, I. A.; Finogenov, S. A.

    2016-12-01

    Some numerical results for the two- and three-dimensional de Vahl Davis benchmark are presented. This benchmark describes thermal convection in a square (cubic) cavity with vertical heated walls in a wide range of Rayleigh numbers (104 to 1014), which covers both laminar and highly turbulent f lows. Turbulent f lows are usually described using a turbulence model with parameters that depend on the Rayleigh number and require adjustment. An alternative is Direct Numerical Simulation (DNS) methods, but they demand extremely large computational grids. Recently, there has been an increasing interest in DNS methods with an incomplete resolution, which, in some cases, are able to provide acceptable results without resolving Kolmogorov scales. On the basis of this approach, the so-called parameter-free computational techniques have been developed. These methods cover a wide range of Rayleigh numbers and allow computing various integral properties of heat transport on relatively coarse computational grids. In this paper, a new numerical method based on the CABARET scheme is proposed for solving the Navier-Stokes equations in the Boussinesq approximation. This technique does not involve a turbulence model or any tuning parameters and has a second-order approximation scheme in time and space on uniform and nonuniform grids with a minimal computational stencil. Testing the technique on the de Vahl Davis benchmark and a sequence of refined grids shows that the method yields integral heat f luxes with a high degree of accuracy for both laminar and highly turbulent f lows. For Rayleigh numbers up to 1014, a several percent accuracy is achieved on an extremely coarse grid consisting of 20 × 20 cells refined toward the boundary. No definite or comprehensive explanation of this computational phenomenon has been given. Cautious optimism is expressed regarding the perspectives of using the new method for thermal convection computations at low Prandtl numbers typical of liquid metals.

  12. Rays as weapons.

    Science.gov (United States)

    Vogel, H

    2007-08-01

    Ionizing radiation is being regarded as life threatening. Therefore, accidents in nuclear power plants are considered equal threatening as nuclear bomb explosions, and attacks with dirty bombs are thought as dangerous as nuclear weapon explosions. However, there are differences between a nuclear bomb explosion, the largest imaginable accident in a nuclear power plant, and an attack with a dirty bomb. It is intended to point them out. The processes are described, which damage in a nuclear bomb explosion, in the largest imaginable accident in a nuclear power plant, and in an attack with a dirty bomb. Their effects are compared with each other, i.e. explosion, heat, shock wave (blast), ionizing radiation, and fallout. In the center of the explosion of a nuclear bomb, the temperature rises to 100Mio degrees C, this induces damaging heat radiation and shock wave. In the largest imaginable accident in a nuclear power plant and in the conventional explosion of a dirty bomb, the temperature may rise up to 3000 degrees C, heat radiation and blast are limited to a short distance. In nuclear power plants, explosions due to oxyhydrogen gas or steam may occur. In nuclear explosions the dispersed radioactive material (fall out) consists mainly of isotopes with short half-life, in nuclear power plants and in dirty bomb attacks with longer half-life. The amount of fall out is comparable in nuclear bomb explosions with that in the largest imaginable accident in a nuclear power plant, it is smaller in attacks with dirty bombs. An explosion in a nuclear power plant even in the largest imaginable accident is not a nuclear explosion. In Hiroshima and Nagasaki, there were 200,000 victims nearly all by heat and blast, some 300 died by ionizing radiation. In Chernobyl, there have been less than 100 victims due to ionizing radiation up till now. A dirty bomb kills possibly with the explosion of conventional explosive, the dispersed radioactive material may damage individuals. The

  13. Rays as weapons

    Energy Technology Data Exchange (ETDEWEB)

    Vogel, H. [Asklepios Klinik St. Georg, Roentgenabteilung, Lohmuehlenstrasse 5, 20099 Hamburg (Germany)], E-mail: Hermann.vogel@ak-stgeorg.lbk-hh.de

    2007-08-15

    Purpose: Ionizing radiation is being regarded as life threatening. Therefore, accidents in nuclear power plants are considered equal threatening as nuclear bomb explosions, and attacks with dirty bombs are thought as dangerous as nuclear weapon explosions. However, there are differences between a nuclear bomb explosion, the largest imaginable accident in a nuclear power plant, and an attack with a dirty bomb. It is intended to point them out. Method: The processes are described, which damage in a nuclear bomb explosion, in the largest imaginable accident in a nuclear power plant, and in an attack with a dirty bomb. Their effects are compared with each other, i.e. explosion, heat, shock wave (blast), ionizing radiation, and fallout. Results: In the center of the explosion of a nuclear bomb, the temperature rises to 100 Mio deg.C, this induces damaging heat radiation and shock wave. In the largest imaginable accident in a nuclear power plant and in the conventional explosion of a dirty bomb, the temperature may rise up to 3000 deg. C, heat radiation and blast are limited to a short distance. In nuclear power plants, explosions due to oxyhydrogen gas or steam may occur. In nuclear explosions the dispersed radioactive material (fall out) consists mainly of isotopes with short half-life, in nuclear power plants and in dirty bomb attacks with longer half-life. The amount of fall out is comparable in nuclear bomb explosions with that in the largest imaginable accident in a nuclear power plant, it is smaller in attacks with dirty bombs. An explosion in a nuclear power plant even in the largest imaginable accident is not a nuclear explosion. In Hiroshima and Nagasaki, there were 200,000 victims nearly all by heat and blast, some 300 died by ionizing radiation. In Chernobyl, there have been less than 100 victims due to ionizing radiation up till now. A dirty bomb kills possibly with the explosion of conventional explosive, the dispersed radioactive material may damage

  14. Modeling Control Strategies and Range Impacts for Electric Vehicle Integrated Thermal Management Systems with MATLAB/Simulink

    Energy Technology Data Exchange (ETDEWEB)

    Titov, Gene; Lustbader, Jason Aaron

    2017-03-28

    The National Renewable Energy Laboratory's (NREL's) CoolSim MATLAB/Simulink modeling framework was used to explore control strategies for an electric vehicle combined loop system. Three system variants of increased complexity and efficiency were explored: a glycol-based positive temperature coefficient heater (PTC), PTC with power electronics and electric motor (PEEM) waste heat recovery, and PTC with PEEM waste heat recovery plus heat pump versions. Additionally, the benefit of electric motor preheating was considered. A two-level control strategy was developed where the mode selection and component control were treated separately. Only the parameters typically available by vehicle sensors were used to control the system. The control approach included a mode selection algorithm and controllers for the compressor speed, cabin blower flow rate, coolant flow rate, and the front-end heat exchanger coolant bypass rate. The electric motor was bypassed by the cooling circuit until its temperature exceeded the coolant inlet temperature. The impact of these thermal systems on electric vehicle range during warmup was simulated for the Urban Dynamometer Driving Schedule (UDDS) and Highway Fuel Economy Test (HWFET2X) drive cycles weighted 45%/55% respectively. A range of ambient temperatures from -20 degrees C to +20 degrees C was considered. NREL's Future Automotive Systems Technology Simulator (FASTSim) vehicle modeling tool showed up to a 10.9% improvement in range for the full system over the baseline during warmup from cold soak. The full system with preheat showed up to 17% improvement in range.

  15. Combining very-long-range terrestrial laser scanner data and thermal imagery for analysis of active lava flow fields

    Science.gov (United States)

    James, Mike; Pinkerton, Harry; Applegarth, Jane

    2010-05-01

    detected in the repeat measurement from the head of the Valle del Bove. With the oblique views afforded by the ground-based instrument, the rough lava-channel topography results in irregular data spacing which can make the interpretation of laser-derived digital elevation models alone difficult. Nevertheless, fusing topographic data with thermal images allows active flow features to be clearly identified, and consideration of individual laser returns can permit new flows and purely inflated regions to be distinguished. The very-long-range capabilities of new terrestrial laser scanners have significantly increased their usefulness for frequent measurement of inaccessible terrain. In the case of active lavas, combining data with thermal imagery can greatly assist in data interpretation and visualisation.

  16. ENVIRONMENTAL CONTAMINATION FROM WEAPON TESTS

    Energy Technology Data Exchange (ETDEWEB)

    none

    1958-10-01

    The program of the Atomic Energy Commission on environmental contamination from weapons tests is designed for the overall evaluation of the hazard to humans from test operations. It is limited to studies of the deposition of activity at long range rather than the problems associated with immediate, close-in fallout. The program has largely been a study of Sr{sup 90}, since considerations based on experience and measurement indicate that it is the isotope of greatest potential hazard. Data are presented pertinent to the monitoring of long-range fallout, particularly Sr{sup 90} and Cs{sup 137}. Values are tabulated for the fallout deposition, air concentrations, water concentrations, and the amounts in foods and human bone. In addition, results are given for some experimental investigations. The report of these results is not interpretative although certain papers that do attempt to interpret the present situation with respect to Sr{sup 90} in particular are reprinted. Bibliographies are presented covering the period since the 1957 hearings before the Joint Committee on Atomic Energy concerning the nature of radioactive fallout and its effects on man. A document list of submissions to the United Nations Scientific Committee on the Effects of Atomic Radiation is given to illustrate the work done in other countries. Several papers on the subject, which have not been generally available, are reprinted.

  17. Measurement of Thermal Conductivity of Porcine Liver in the Temperature Range of Cryotherapy and Hyperthermia (250~315k) by A Thermal Sensor Made of A Micron-Scale Enameled Copper Wire.

    Science.gov (United States)

    Jiang, Z D; Zhao, G; Lu, G R

      BACKGROUND: Cryotherapy and hyperthermia are effective treatments for several diseases, especially for liver cancers. Thermal conductivity is a significant thermal property for the prediction and guidance of surgical procedure. However, the thermal conductivities of organs and tissues, especially over the temperature range of both cryotherapy and hyperthermia are scarce. To provide comprehensive thermal conductivity of liver for both cryotherapy and hyperthermia. A hot probe made of stain steel needle and micron-sized copper wire is used for measurement. To verify data processing, both the least square method and the Monte Carlo inversion method are used to determine the hot probe constants, respectively, with reference materials of water and 29.9 % Ca2Cl aqueous solution. Then the thermal conductivities of Hanks solution and pork liver bathed in Hanks solution are measured. The effective length for two methods is nearly the same, but the heat capacity of probe calibrated by the Monte Carlo inversion is temperature dependent. Fairly comprehensive thermal conductivity of porcine liver measured with these two methods in the target temperature range is verified to be similar. We provide an integrated thermal conductivity of liver for cryotherapy and hyperthermia in two methods, and make more accurate predictions possible for surgery. The least square method and the Monte Carlo inversion method have their advantages and disadvantages. The least square method is available for measurement of liquids that not prone to convection or solids in a wide temperature range, while the Monte Carlo inversion method is available for accurate and rapid measurement.

  18. Non-Lethal Chemical Weapons

    National Research Council Canada - National Science Library

    Weilacher, Lester A

    2003-01-01

    Little more than a month after terrorists took control of four passenger aircraft in the United States and unleashed the horror of 9/11, 50 Chechen terrorists armed with automatic weapons and carrying...

  19. Nuclear Weapons and Science Education.

    Science.gov (United States)

    Wellington, J. J.

    1984-01-01

    Provides suggestions on how science teachers can, and should, deal with the nuclear weapons debate in a balanced and critical way. Includes a table outlining points for and against deterrence and disarmament. (JN)

  20. Universal experimental test for the role of free charge carriers in the thermal Casimir effect within a micrometer separation range

    Science.gov (United States)

    Bimonte, G.; Klimchitskaya, G. L.; Mostepanenko, V. M.

    2017-05-01

    We propose a universal experiment to measure the differential Casimir force between a Au-coated sphere and two halves of a structured plate covered with a P-doped Si overlayer. The concentration of free charge carriers in the overlayer is chosen slightly below the critical one, for which the phase transition from dielectric to metal occurs. One half of the structured plate is insulating, while the second half is made of gold. For the former we consider two structures, one consisting of bulk high-resistivity Si and the other of a layer of SiO 2 followed by bulk high-resistivity Si. The differential Casimir force is computed within the Lifshitz theory using four approaches that have been proposed in the literature to account for the role of free charge carriers in metallic and dielectric materials interacting with quantum fluctuations. According to these approaches, Au at low frequencies is described by either the Drude or the plasma model, whereas the free charge carriers in dielectric materials at room temperature are either taken into account or disregarded. It is shown that the values of differential Casimir forces, computed in the micrometer separation range using these four approaches, are widely distinct from each other and can be easily discriminated experimentally. It is shown that for all approaches the thermal component of the differential Casimir force is sufficiently large for direct observation. The possible errors and uncertainties in the proposed experiment are estimated and its importance for the theory of quantum fluctuations is discussed.

  1. Fluoride salts as phase change materials for thermal energy storage in the temperature range 1000-1400 K

    Science.gov (United States)

    Misra, Ajay K.

    1988-01-01

    Eutectic compositions and congruently melting intermediate compounds in binary and ternary fluoride salt systems were characterized for potential use as latent heat of fusion phase change materials to store thermal energy in the temperature range 1000-1400 K. The melting points and eutectic compositions for many systems with published phase diagrams were experimentally verified and new eutectic compositions having melting points between 1000 and 1400 K were identified. Heats of fusion of several binary and ternary eutectics and congruently melting compounds were experimentally measured by differential scanning calorimetry. For a few systems in which heats of mixing in the melts have been measured, heats of fusion of the eutectics were calculated from thermodynamic considerations and good agreement was obtained between the measured and calculated values. Several combinations of salts with high heats of fusion per unit mass (greater than 0.7 kJ/g) have been identified for possible use as phase change materials in advanced solar dynamic space power applications.

  2. Thermal modelling of the completely stirred anaerobic reactor treating pig manure at low range of mesophilic conditions.

    Science.gov (United States)

    Guo, Jianbin; Dong, Renjie; Clemens, Joachim; Wang, Wei

    2013-09-30

    Most of Chinese middle size agricultural biogas plants run at the lower range of mesophilic conditions and low organic loading rates (OLRs) which result in the low biogas production. How to obtain an economically viable operation mode is a challenge for Chinese farm biogas plants. In this study, the performance of completely stirred anaerobic reactors treating pig manure was studied at 20, 28 and 38 °C. A thermal mathematic model was accordingly developed to decide the optimum digesting temperature and OLRs considering ambient temperature of 20, 10 and 0 °C. The regression surface model can fit well on the experimental data when the ambient temperature was around 10-20 °C, at which maximum net energy production (Np,max) can be achieved when the digesters run at OLR of 4.6-5.4 kgODM/m(3) d with temperature of above 26 °C. Co-digestion on the pig farm was suggested in winter in order to increase the Np. Copyright © 2013 Elsevier Ltd. All rights reserved.

  3. Islamic State and Chemical Weapons

    Directory of Open Access Journals (Sweden)

    Lukáš Rafay

    2016-09-01

    Full Text Available The article deals with topic of Islamic State and chemical weapons. The issue is analysed in three dimensions: origin of used chemical weapons and possibility of independent production; known chemical attacks and tactical regularities in their execution; and traits of future chemical terrorist attacks. By providing a thorough examination of the problem, the article aims at predicting the future development of the group’s chemical program as well as describing any prospective chemical terrorist attacks in Europe

  4. How electroshock weapons kill!

    Science.gov (United States)

    Lundquist, Marjorie

    2010-03-01

    Growing numbers of law enforcement officers now carry an electroshock weapon (ESW). Over 500 U.S. deaths have followed ESW use in the past 26 years; over 450 of these deaths followed use of an electromuscular disruptor in the past 9 years. Most training courses teach that ESWs are safe; that they can kill only by the direct effect of electric current on the heart; and that a death following use of an ESW always has some other cause. All these teachings are false! The last was disproved by Lundquist.^1 Williams^2 ruled out direct electrical effects as a cause of almost all the 213 deaths he studied, leaving disruption of normal physiological processes as the only alternative explanation. Careful study of all such deaths identifies 4 different ways that death has or could have been brought about by the ESW: kidney failure following rhabdomyolysis [rare]; cardiac arrest from hyperkalemia following rhabdomyolysis [undocumented]; lactic acid-induced ventricular fibrillation [conclusive proof impossible]; and [most common] anoxia from so much lactic acid in the circulating blood that it acts as an oxygen scavenger, continuously depleting the blood of oxygen until most of the lactate has been metabolized. ^1M. Lundquist, BAPS 54(1) K1.270(2009). ^2Howard E. Williams, Taser Electronic Control Devices and Sudden In-Custody Death, 2008.

  5. OIL AS POLITICAL WEAPON

    Directory of Open Access Journals (Sweden)

    Mariana, BUICAN

    2013-12-01

    Full Text Available Oil (called by some black gold has not always been as coveted and used, but only in the last hundred years has established itself as a highly sought after as an indispensable proper functioning of modern economic activity that an important factor in international politics. International oil regime has changed in the last decades. In 1960, oil regime was a private oligopol which had links with governments main consuming countries. By then the price of a barrel of oil was two U.S. dollars and seven major transnational oil companies decided the amount of oil that will be produced. Meanwhile the world region with the largest oil exports were more strongly expressed nationalism and decolonization. Result, it was so in the late 60s in the region occur independent states. They have created an organization aim of this resource to their advantage - OPEC (Organization of Petroleum Exporting Countries. Thus since 1973 there have been changes in the international regime governing oil field, namely producing countries were fixed production rate and price. After this time the oil weapon has become increasingly important in the management of international relations. Oil influenced the great powers to Middle East conflicts that occurred in the last century, but their attitude about the emergence of new sources of oil outside OPEC. In the late 90's, Russia has become a major supplier of oil to the West.

  6. An Investigation of the Ranges of Validity of Asteroid Thermal Models for Near-Earth Asteroid Observations

    Science.gov (United States)

    Mommert, M.; Jedicke, R.; Trilling, D. E.

    2018-02-01

    The majority of known asteroid diameters are derived from thermal-infrared observations. Diameters are derived using asteroid thermal models that approximate their surface temperature distributions and compare the measured thermal-infrared flux with model-dependent predictions. The most commonly used thermal model is the Near-Earth Asteroid Thermal Model (NEATM), which is usually perceived as superior to other models like the Fast-Rotating Model (FRM). We investigate the applicability of the NEATM and the FRM to thermal-infrared observations of Near-Earth Objects using synthetic asteroids with properties based on the real Near-Earth Asteroid (NEA) population. We find the NEATM to provide more accurate diameters and albedos than the FRM in most cases, with a few exceptions. The modeling results are barely affected by the physical properties of the objects, but we find a large impact of the solar phase angle on the modeling results. We conclude that the NEATM provides statistically more robust diameter estimates for NEAs observed at solar phase angles less than ∼65°, while the FRM provides more robust diameter estimates for solar phase angles greater than ∼65°. We estimate that <5% of all NEA diameters and albedos derived up to date are affected by systematic effects that are of the same order of magnitude as the typical thermal model uncertainties. We provide statistical correction functions for diameters and albedos derived using the NEATM and FRM as a function of solar phase angle.

  7. Temperature dependence of the thermal diffusivity of GaAs in the 100-305 K range measured by the pulsed photothermal displacement technique

    Science.gov (United States)

    Soltanolkotabi, M.; Bennis, G. L.; Gupta, R.

    1999-01-01

    We have measured the variation of the value of the thermal diffusivity of semi-insulating GaAs in the 100-305 K range. The method used is the pulsed photothermal displacement technique. This is a noncontact technique, and the value of the thermal diffusivity is derived from the temporal evolution of the signal rather than its amplitude. This makes the technique less susceptible to uncertainties. We find that the temperature dependence of the thermal conductivity of semi-insulating GaAs follows a power law as T-1.62, in disagreement with results obtained previously. Possible reasons for the deviation within this very important intermediate temperature range are discussed.

  8. The Effects of Nuclear Weapons

    Energy Technology Data Exchange (ETDEWEB)

    Glasstone, Samuel

    1964-02-01

    This book is a revision of "The Effects of Nuclear Weapons" which was issued in 1957. It was prepared by the Defense Atomic Support Agency of the Department of Defense in coordination with other cognizant governmental agencies and was published by the U.S. Atomc Energy Commission. Although the complex nature of nuclear weapons effects does not always allow exact evaluation, the conclusions reached herein represent the combined judgment of a number of the most competent scientists working the problem. There is a need for widespread public understanding of the best information available on the effects of nuclear weapons. The purpose of this book is to present as accurately as possible, within the limits of national security, a comprehensive summary of this information.

  9. Space weapon technology and policy

    Science.gov (United States)

    Hitchens, Theresa

    2017-11-01

    The military use of space, including in support of nuclear weapons infrastructure, has greatly increased over the past 30 years. In the current era, rising geopolitical tensions between the United States and Russia and China have led to assumptions in all three major space powers that warfighting in space now is inevitable, and possible because of rapid technological advancements. New capabilities for disrupting and destroying satellites include radio-frequency jamming, the use of lasers, maneuverable space objects and more capable direct-ascent anti-satellite weapons. This situation, however, threatens international security and stability among nuclear powers. There is a continuing and necessary role for diplomacy, especially the establishment of normative rules of behavior, to reduce risks of misperceptions and crisis escalation, including up to the use of nuclear weapons. U.S. policy and strategy should seek a balance between traditional military approaches to protecting its space assets and diplomatic tools to create a more secure space environment.

  10. The Effects of Nuclear Weapons

    Energy Technology Data Exchange (ETDEWEB)

    Glasstone, Samuel

    1957-06-01

    This handbook prepared by the Armed Forces Special Weapons Project of the Department of Defense in coordination with other cognizant government agencies and published by the United States Atomic Energy Commission, is a comprehensive summary of current knowledge on the effects of nuclear weapons. The effects information contained herein is calculated for yields up to 20 megatons and the scaling laws for hypothetically extending the calculations beyond this limit are given. The figure of 20 megatons however is not be taken as an indication of capabilities or developments.

  11. North Korea's Nuclear Weapons: Latest Developments

    National Research Council Canada - National Science Library

    Nikitin, Mary B

    2007-01-01

    This report summarizes what is known from open sources about the North Korean nuclear weapons program including weapons-usable fissile material and warhead estimates and assesses current developments...

  12. Direct-energy weapons : invisible and invincible?

    OpenAIRE

    Deveci, Bayram Mert

    2007-01-01

    A military weapon is any tool used to increase the reach or power of a nation. Simply, it can be said that each era witnesses the deployment of new and powerful mass destruction weaponry. What will this century's most powerful weapon be? Directed-energy weapons, which offer advantages over conventional weapons by providing attack at the speed of light, precise targeting, rapid engagement of multiple targets, adjustable damage capacity, low operational cost, reduced logistic support, a nea...

  13. Investigation of Efficiency and Thermal Performance of the Y-source Converters for a Wide Voltage Range

    DEFF Research Database (Denmark)

    Gadalla, Brwene Salah Abdelkarim; Schaltz, Erik; Siwakoti, Yam Prasad

    2015-01-01

    The Y-source topology has a unique advantage of having high voltages gain with small shoot through duty cycles. Furthermore, having the advantage of high modulation index increases the power density and improves the performance of the converter. In this paper, a collective thermal and efficiency...

  14. Experimental verification of a thermal equivalent circuit dynamic model on an extended range electric vehicle battery pack

    Science.gov (United States)

    Ramotar, Lokendra; Rohrauer, Greg L.; Filion, Ryan; MacDonald, Kathryn

    2017-03-01

    The development of a dynamic thermal battery model for hybrid and electric vehicles is realized. A thermal equivalent circuit model is created which aims to capture and understand the heat propagation from the cells through the entire pack and to the environment using a production vehicle battery pack for model validation. The inclusion of production hardware and the liquid battery thermal management system components into the model considers physical and geometric properties to calculate thermal resistances of components (conduction, convection and radiation) along with their associated heat capacity. Various heat sources/sinks comprise the remaining model elements. Analog equivalent circuit simulations using PSpice are compared to experimental results to validate internal temperature nodes and heat rates measured through various elements, which are then employed to refine the model further. Agreement with experimental results indicates the proposed method allows for a comprehensive real-time battery pack analysis at little computational expense when compared to other types of computer based simulations. Elevated road and ambient conditions in Mesa, Arizona are simulated on a parked vehicle with varying quiescent cooling rates to examine the effect on the diurnal battery temperature for longer term static exposure. A typical daily driving schedule is also simulated and examined.

  15. Daily thermal fluctuations to a range of subzero temperatures enhance cold hardiness of winter-acclimated turtles.

    Science.gov (United States)

    Wiebler, James M; Kumar, Manisha; Muir, Timothy J

    2017-12-01

    Although seasonal increases in cold hardiness are well documented for temperate and polar ectotherms, relatively little is known about supplemental increases in cold hardiness during winter. Because many animals are exposed to considerable thermal variation in winter, they may benefit from a quick enhancement of cold tolerance prior to extreme low temperature. Hatchling painted turtles (Chrysemys picta) overwintering in their natal nests experience substantial thermal variation in winter, and recently, it was found that brief subzero chilling of winter-acclimated hatchlings decreases subsequent chilling-induced mortality, increases blood concentrations of glucose and lactate, and protects the brain from cryoinjury. Here, we further characterize that phenomenon, termed 'cold conditioning', by exposing winter-acclimated hatchling turtles to -3.5, -7.0, or -10.5 °C gradually or repeatedly via daily thermal fluctuations over the course of 5 days and assessing their survival of a subsequent cold shock to a discriminating temperature of -12.7 °C. To better understand the physiological response to cold conditioning, we measured changes in glucose and lactate concentrations in the liver, blood, and brain. Cold conditioning significantly increased cold-shock survival, from 9% in reference turtles up to 74% in cold-conditioned turtles, and ecologically relevant daily thermal fluctuations were at least as effective at conferring cryoprotection as was gradual cold conditioning. Cold conditioning increased glucose concentrations, up to 25 μmol g -1 , and lactate concentrations, up to 30 μmol g -1 , in the liver, blood, and brain. Turtles that were cold conditioned with daily thermal fluctuations accumulated more glucose in the liver, blood, and brain, and had lower brain lactate, than those gradually cold conditioned. Given the thermal variation to which hatchling painted turtles are exposed in winter, we suggest that the supplemental protection conferred by cold

  16. Weapons in Schools. NSSC Resource Paper.

    Science.gov (United States)

    Butterfield, George E., Ed.; Turner, Brenda, Ed.

    More than ever, our public school system must confront weapons in schools and become aware of steadily rising statistics on youth homicide and suicide. This report delineates the problem, discusses why children carry weapons to school, and outlines strategies for keeping weapons out of schools and for improving school safety. Although some…

  17. Managing nuclear weapons in a changing world: Proceedings

    Energy Technology Data Exchange (ETDEWEB)

    1992-12-31

    The Center for Security and Technology Studies was established at the Lawrence Livermore National Laboratory to support long-range technical studies on issues of importance to US national security. An important goal of the Center is to bring together Laboratory staff and the broader outside community through a program of technical studies, visitors, symposia, seminars, workshops, and publications. With this in mind, the Center and LLNL`s Defense Systems Program sponsored a conference on Managing Nuclear Weapons in a Changing World held on November 17--18,1992. The first day of the meeting focused on nuclear weapons issues in the major geographical areas of the world. On the second day, the conference participants discussed what could be done to manage, control, and account for nuclear weapons in this changing world. Each of the talks and the concluding panel discussion are being indexed as separate documents.

  18. Weapons engineering tritium facility overview

    Energy Technology Data Exchange (ETDEWEB)

    Najera, Larry [Los Alamos National Laboratory

    2011-01-20

    Materials provide an overview of the Weapons Engineering Tritium Facility (WETF) as introductory material for January 2011 visit to SRS. Purpose of the visit is to discuss Safety Basis, Conduct of Engineering, and Conduct of Operations. WETF general description and general GTS program capabilities are presented in an unclassified format.

  19. 33 CFR 334.1380 - Marine Corps Base Hawaii (MCBH), Kaneohe Bay, Island of Oahu, Hawaii-Ulupau Crater Weapons...

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Marine Corps Base Hawaii (MCBH), Kaneohe Bay, Island of Oahu, Hawaii-Ulupau Crater Weapons Training Range; danger zone. 334.1380 Section... Bay, Island of Oahu, Hawaii—Ulupau Crater Weapons Training Range; danger zone. (a) The danger zone...

  20. Projecting range limits with coupled thermal tolerance - climate change models: an example based on gray snapper (Lutjanus griseus along the U.S. east coast.

    Directory of Open Access Journals (Sweden)

    Jonathan A Hare

    Full Text Available We couple a species range limit hypothesis with the output of an ensemble of general circulation models to project the poleward range limit of gray snapper. Using laboratory-derived thermal limits and statistical downscaling from IPCC AR4 general circulation models, we project that gray snapper will shift northwards; the magnitude of this shift is dependent on the magnitude of climate change. We also evaluate the uncertainty in our projection and find that statistical uncertainty associated with the experimentally-derived thermal limits is the largest contributor (∼ 65% to overall quantified uncertainty. This finding argues for more experimental work aimed at understanding and parameterizing the effects of climate change and variability on marine species.

  1. Measurement of Thermal Conductivities of Two Cryoprotective Agent Solutions for Vitreous Cryopreservation of Organs at the Temperature Range of 77 K-300 K Using a Thermal Sensor Made of Microscale Enamel Copper Wire.

    Science.gov (United States)

    Li, Yufang; Zhao, Gang; Hossain, S M Chapal; Panhwar, Fazil; Sun, Wenyu; Kong, Fei; Zang, Chuanbao; Jiang, Zhendong

    2017-06-01

    Biobanking of organs by cryopreservation is an enabling technology for organ transplantation. Compared with the conventional slow freezing method, vitreous cryopreservation has been regarded to be a more promising approach for long-term storage of organs. The major challenges to vitrification are devitrification and recrystallization during the warming process, and high concentrations of cryoprotective agents (CPAs) induced metabolic and osmotic injuries. For a theoretical model based optimization of vitrification, thermal properties of CPA solutions are indispensable. In this study, the thermal conductivities of M22 and vitrification solution containing ethylene glycol and dimethyl sulfoxide (two commonly used vitrification solutions) were measured using a self-made microscaled hot probe with enameled copper wire at the temperature range of 77 K-300 K. The data obtained by this study will further enrich knowledge of the thermal properties for CPA solutions at low temperatures, as is of primary importance for optimization of vitrification.

  2. Influence of temporal noise on the skin blood flow measurements performed by cooled thermal imaging camera: limit possibilities within each physiological frequency range

    Science.gov (United States)

    Sagaidachnyi, A. A.; Volkov, I. U.; Fomin, A. V.

    2016-04-01

    This paper describes limit possibilities of modern cooled thermal imaging cameras as a tool for estimation of blood flow oscillations at the surface of living body. Skin temperature oscillations, as we assumed, are a consequence of the blood flow oscillations. We considered the temperature sensitivity 0.01-0.02 °C as a typical for the most of modern cooled long wave thermal imaging cameras. Fourier filter used to investigate the temperature signal separately within endothelial, neurogenic, myogenic, respiratory and cardiac frequency ranges. The level of temporal noise has been estimated during measurements of no living body with stabilized temperature ~ 24°C. The level of temperature oscillations has been calculated for the group of healthy subjects within each frequency range. Thus, we were able to determine signal-to-noise ratio within frequency band [0.001, 1] Hz. As a result, we determine that skin temperature oscillations measured by thermal imaging camera with sensitivity 0.02°C have the upper frequency limit ~ 0.2 Hz. In other words, within the respiratory and cardiac frequency ranges of blood flow oscillations the noise level exceeds signal one, and temperature measurements at the skin surface are practically useless. The endothelial, neurogenic and myogenic components of the temperature oscillations contain ~98% of the total spectral power of the signal. We have plot the empirical extrapolated curve of sensitivity of thermal imaging camera vs. frequency of the temperature oscillations. The data analysis shows that measurements of skin temperature oscillations within respiratory and cardiac ranges require the temperature sensitivity at least ~ 0.01°C and 0.001°C, respectively.

  3. Survey of Army Weapons Training and Weapons Training Devices.

    Science.gov (United States)

    1976-04-01

    oriented AIT. The scations are as follows: Time /Minutes 1. Mechinical Station 12 2. FDC Station 12 3. FO Station 12 The proficicacy test does not officially...responsibility and returned the questionnaire. Other types of information requested required a great deal of time to develop. It was not expected...management considerations portion of the ouestionnaire, a summary of the training for all Infantry weapons indicated that the time allocated for

  4. Weapon of the Weak?

    DEFF Research Database (Denmark)

    Amber, Van der Graaf; Otjes, Simon; Rasmussen, Anne

    2016-01-01

    on the sparse existing literature on interest groups and social media in a quantitative, structural analysis of both the range and volume of social media use examining a data set of groups active in European Union lobbying. Despite the positive expectations, we find limited evidence that social media have been...... if they lose ground to traditional membership groups when the actual volume of Twitter and Facebook use is assessed....

  5. Brain thermal inertia, but no evidence for selective brain cooling, in free-ranging western grey kangaroos (Macropus fuliginosus).

    Science.gov (United States)

    Maloney, Shane K; Fuller, Andrea; Meyer, Leith C R; Kamerman, Peter R; Mitchell, Graham; Mitchell, Duncan

    2009-04-01

    Marsupials reportedly can implement selective brain cooling despite lacking a carotid rete. We measured brain (hypothalamic) and carotid arterial blood temperatures every 5 min for 5, 17, and 63 days in spring in three free-living western grey kangaroos. Body temperature was highest during the night, and decreased rapidly early in the morning, reaching a nadir at 10:00. The highest body temperatures recorded occurred sporadically in the afternoon, presumably associated with exercise. Hypothalamic temperature consistently exceeded arterial blood temperature, by an average 0.3 degrees C, except during these afternoon events when hypothalamic temperature lagged behind, and was occasionally lower than, the simultaneous arterial blood temperature. The reversal in temperatures resulted from the thermal inertia of the brain; changes in the brain to arterial blood temperature difference were related to the rate of change of arterial blood temperature on both heating and cooling (P kangaroos). We conclude that these data are not evidence for active selective brain cooling in kangaroos. The effect of thermal inertia on brain temperature is larger than might be expected in the grey kangaroo, a discrepancy that we speculate derives from the unique vascular anatomy of the marsupial brain.

  6. Tactical Nuclear Weapons and NATO

    Science.gov (United States)

    2012-04-01

    nuclear weapons, leading to a weakening of Russia’s global position. It would down- grade Russia to sixth or seventh place in the geostrate- gic...years with the dismaying realization that the reinforcement of conventional forces and the up- grade of infrastructure for their defense, which NATO...Russian temptation to exploit the presence of its NSNWs to threaten, in- timidate , or coerce NATO allies or others, especially in crisis. The continued

  7. History of Laser Weapon Research

    Science.gov (United States)

    2012-01-01

    Quartz Flash Tube100% Reflective Mirror Polished Aluminum Reflecting Cylinder 95% Reflective Mirror Laser Beam 29 History of Laser Weapon Research short...are among the combustion products. Just downstream from the combustor, deuterium and helium are injected into the exhaust. Deuteri- um (U) combines...with the excited fluorine to cre- ate excited deuterium fluoride (DF) molecules, while the helium stabilizes the reaction and con- trols the

  8. Defining Weapons of Mass Destruction

    Science.gov (United States)

    2012-01-01

    U.S. military had full access to the products of science and technology during the war, he also was intimately familiar with the destruc- tive...agents, usually anthrax hoaxes .104 After 1994, 21 states and the District of Columbia also adopted laws incorpo- rating WMD definitions (see appendix D...interpretation” of what constituted WMD, and the President’s science advi- sor made clear that he thought WMD meant nuclear weapons plus “BW–CW

  9. Future Treaties: Chemical Weapons Convention

    Science.gov (United States)

    1989-09-01

    Rnmrvn ia ALL;t rai EK upi Kepv i Sri Lanka he: giu Fra ’nce mexic 1-r Brazi G Moi7Y𔄁lia A.S.S.R. Bulgz’ari "RG Morocco At.41 Or< n Surma7; Hjnqar: Wh...Carpenter, W., Government Regulation of Chemical Manufacturing in the USA as a Basis for Surveillance of Compliance With the Projected Chemical Weapons

  10. The tale of the shrinking weapon: seasonal changes in nutrition affect weapon size and sexual dimorphism, but not contemporary evolution.

    Science.gov (United States)

    Miller, C W; McDonald, G C; Moore, A J

    2016-11-01

    Sexually selected traits are often highly variable in size within populations due to their close link with the physical condition of individuals. Nutrition has a large impact on physical condition, and thus, any seasonal changes in nutritional quality are predicted to alter the average size of sexually selected traits as well as the degree of sexual dimorphism in populations. However, although traits affected by mate choice are well studied, we have a surprising lack of knowledge of how natural variation in nutrition affects the expression of sexually selected weapons and sexual dimorphism. Further, few studies explicitly test for differences in the heritability and mean-scaled evolvability of sexually selected traits across conditions. We studied Narnia femorata (Hemiptera: Coreidae), an insect where males use their hind legs as weapons and the femurs are enlarged, to understand the extent to which weapon expression, sexual dimorphism and evolvability change across the actual range of nutrition available in the wild. We found that insects raised on a poor diet (cactus without fruit) are nearly monomorphic, whereas those raised on a high-quality diet (cactus with ripe fruit) are distinctly sexually dimorphic via the expression of large hind leg weapons in males. Contrary to our expectations, we found little evidence of a potential for evolutionary change for any trait measured. Thus, although we show weapons are highly condition dependent, and changes in weapon expression and dimorphism could alter evolutionary dynamics, our populations are unlikely to experience further evolutionary changes under current conditions. © 2016 European Society For Evolutionary Biology. Journal of Evolutionary Biology © 2016 European Society For Evolutionary Biology.

  11. A compilation of correlation parameters for predicting the enthalpy and thermal conductivity of solid foods within the temperature range of -40 C to +40 C

    Energy Technology Data Exchange (ETDEWEB)

    Amos, N.D. [Comvita New Zealand Limited, Private Bag 1, Te Puke 3153 (New Zealand); Willix, J.; North, M.F. [AgResearch Limited, MIRINZ Centre, Ruakura Campus, East Street, Private Bag 3123, Hamilton (New Zealand); Chadderton, T. [Crop and Food Research Ltd, PO Box 5114, Nelson (New Zealand)

    2008-11-15

    This paper presents thermal conductivity data for 40 foods, enthalpy data for 58 foods and density data for nine foods, along with the compositions of the foods. Measurements cover a range of solid food types (including meats, fats, offal, fish, dairy products and horticultural products). Some measurements reported are for foods that have never before been studied, others have been published elsewhere, but are included here for convenience. Thermal conductivity was measured using a guarded hot-plate apparatus, enthalpy using an adiabatic calorimeter and density using a water displacement meter. Thermal conductivity and enthalpy values were measured within the temperature range of -40 C to +40 C. (author) [French] Cette publication presente des donnes sur la conductivite thermique, l'enthalpie et la densite respectivement de 40, 58 et 9 produits alimentaires, ainsi que leurs compositions. Les mesures couvrent une variete de types de produits alimentaires (viande, matieres grasses, abats, poisson, produits laitiers, produits horticoles). Certaines sont rapportees pour des produits qui n 'ant jamais ete etudie auparavant, d'autres ant ete publie ailleurs mais sont aussi inclues pour plus de commodite. La conductivite thermique a ete mesure avec un appareil a plaque electrique protegee, l'enthalpie avec un calorimetre adiabatique et la densite avec un appareil mesurant Ie deplacement d'eau. La conductivite thermique et l'enthalpie ont ete toutes les mesures pour une fourchette de temperatures allant de -40 C a 40 C. (orig.)

  12. Critical point estimation and long-range behavior in the one-dimensional XY model using thermal quantum and total correlations

    Energy Technology Data Exchange (ETDEWEB)

    Çakmak, B., E-mail: cakmakb@sabanciuniv.edu [Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla, Istanbul 34956 (Turkey); Karpat, G.; Gedik, Z. [Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla, Istanbul 34956 (Turkey)

    2012-10-01

    We investigate the thermal quantum and total correlations in the anisotropic XY spin chain in transverse field. While we adopt concurrence and geometric quantum discord to measure quantum correlations, we use measurement-induced non-locality and an alternative quantity defined in terms of Wigner–Yanase information to quantify total correlations. We show that the ability of these measures to estimate the critical point at finite temperature strongly depend on the anisotropy parameter of the Hamiltonian. We also identify a correlation measure which detects the factorized ground state in this model. Furthermore, we study the effect of temperature on long-range correlations. -- Highlights: ► Thermal quantum and total correlations in anisotropic XY spin chain are analyzed. ► All considered measures are able to detect the critical point of the transition. ► Effects of finite temperature on the estimation of critical points is studied. ► Detection of the factorized ground state using correlation measures is discussed. ► Long-range behavior of thermal quantum and total correlations are investigated.

  13. Determination of the Thermal Diffusivity of Electrically Non-Conductive Solids in the Temperature Range from 80 K to 300 K by Laser-Flash Measurement

    Science.gov (United States)

    Hemberger, F.; Göbel, A.; Ebert, H.-P.

    2010-12-01

    The adoption of the popular laser-flash method at temperatures far below 300 K is restricted by the weak signal-to-noise ratio and the limited spectral bandwidth of the commonly used mercury cadmium tellurite (MCT) infrared (IR) detector used as a non-contacting temperature probe. In this work, a different approach to measure the temperature rise in pulse heating experiments is described and evaluated. This method utilizes the change of the temperature-dependent electrical resistance of a thin strip of sputtered gold for the detection of a temperature rise as it was proposed by Kogure et al. The main advantage of this method at lower temperatures is the significantly higher signal-to-noise ratio compared to the commonly used IR detectors. A newly developed laser-flash apparatus using this detection method for the determination of the thermal diffusivity in the temperature range from 80 K to 300 K is presented. To test the accuracy of the new detection method, the thermal diffusivity of a borosilicate crown glass (BK7) specimen at 300 K was determined and compared to results derived with a MCT detector. Good agreement of the derived thermal diffusivity values within 3 % was found. The thermal diffusivity of BK7 and polycrystalline aluminum nitride (AlN) was measured at temperatures between 80 K and 300 K by a laser-flash method to test the functionality of the apparatus. Finally, the thermal conductivity was calculated using values for the specific heat capacity determined by temperature modulated differential scanning calorimetry (MDSC). Comparisons with literature data confirm the reliability of the experimental setup.

  14. Zero thermal expansion and ferromagnetism in cubic Sc(1-x)M(x)F3 (M = Ga, Fe) over a wide temperature range.

    Science.gov (United States)

    Hu, Lei; Chen, Jun; Fan, Longlong; Ren, Yang; Rong, Yangchun; Pan, Zhao; Deng, Jinxia; Yu, Ranbo; Xing, Xianran

    2014-10-01

    The rare physical property of zero thermal expansion (ZTE) is intriguing because neither expansion nor contraction occurs with temperature fluctuations. Most ZTE, however, occurs below room temperature. It is a great challenge to achieve isotropic ZTE at high temperatures. Here we report the unconventional isotropic ZTE in the cubic (Sc1-xMx)F3 (M = Ga, Fe) over a wide temperature range (linear coefficient of thermal expansion (CTE), αl = 2.34 × 10(-7) K(-1), 300-900 K). Such a broad temperature range with a considerably negligible CTE has rarely been documented. The present ZTE property has been designed using the introduction of local distortions in the macroscopic cubic lattice by heterogeneous cation substitution for the Sc site. Even though the macroscopic crystallographic structure of (Sc0.85Ga0.05Fe0.1)F3 adheres to the cubic system (Pm3̅m) according to the results of X-ray diffraction, the local structure exhibits a slight rhombohedral distortion. This is confirmed by pair distribution function analysis of synchrotron radiation X-ray total scattering. This local distortion may weaken the contribution from the transverse thermal vibration of fluorine atoms to negative thermal expansion, and thus may presumably be responsible for the ZTE. In addition, the present ZTE compounds of (Sc1-xMx)F3 can be functionalized to exhibit high-Tc ferromagnetism and a narrow-gap semiconductor feature. The present study shows the possibility of obtaining ZTE materials with multifunctionality in future work.

  15. Defining "Weapons of Mass Destruction"

    Science.gov (United States)

    2006-01-01

    law have involved individuals who threatened to use chemical or biological agents, usually anthrax hoaxes .46 Nine states and the District of...of the development of other weapons [besides atomic weapons], or of new methods of warfare, which may constitute as great a threat to civilization as...weapons): the 1967 Outer Space Treaty, the 1972 Seabed Treaty, and the 1991 Strategic Arms Reduction Treaty. One additional treaty, the 1979 Moon

  16. Testing of ground fault relay response during the energisation of megawatt range electric boilers in thermal power plants

    DEFF Research Database (Denmark)

    Silva, Filipe Miguel Faria da; Bak, Claus Leth; Davidsen, Troels

    2015-01-01

    Large controllable loads may support power systems with an increased penetration of fluctuating renewable energy, by providing a rapid response to a change in the power production. Megawatt range electric boilers are an example of such controllable loads, capable of change rapidly, with the advan......Large controllable loads may support power systems with an increased penetration of fluctuating renewable energy, by providing a rapid response to a change in the power production. Megawatt range electric boilers are an example of such controllable loads, capable of change rapidly...... for the testing of two ground fault protection relays, in order to assure that they are not triggered by the energisation of the boiler. The test is performed via an OMICRON CMC 256 with Advanced TransPlay SW, which generates the signals that would be present at the secondary of the instrumentation transformers......, resulting in a realistic simulation environment. The test of different cases demonstrates that the relays will not present unwanted triggering....

  17. System analysis of high speed, long range weapon systems

    NARCIS (Netherlands)

    Moerel, J.L.P.A.; Halswijk, W.H.C.

    2005-01-01

    Many countries are developing technologies for future hypersonic air breathing cruise missiles. These missiles are foreseen to be employed against, amongst others, deeply buried targets. The main technological challenges are related to severe aerodynamic heating and complex physical processes of

  18. Biologic and chemical weapons of mass destruction.

    Science.gov (United States)

    Bozeman, William P; Dilbero, Deanna; Schauben, Jay L

    2002-11-01

    Weapons of mass destruction (WMDs) are capable of producing massive casualties and are typically grouped into nuclear, biologic, and chemical weapons. In the wake of the September 11th disasters, attention to terrorist groups and the potential for use of WMDs has increased. Biologic and chemical weapons are relatively accessible and inexpensive to develop, and are thought to be the most available to foreign states and subnational terrorist groups. This article reviews various biologic and chemical weapons, including emergency diagnosis and management of selected agents.

  19. A model to calculate effectiveness of a submarine-launched nuclear ASW weapon

    Energy Technology Data Exchange (ETDEWEB)

    Magnoli, D.E.

    1989-06-01

    LLNL's Navy Tactical Applications Group (NTAG) has produced a computer model to calculate the probability of kill of a submarine-launched nuclear ASW standoff-weapon. Because of the uncertainties associated with target position and motion and with weapon delivery, this is a problem appropriately treated statistically. The code is a Monte Carlo's simulation which follows the engagement from localization through optional evasive maneuvers of the target to attack and damage assessment. For a given scenario (weapon characteristics, target characteristics, firing platform depth and hardness, etc.) the code produces a table and ultimately a plot of Pk as a function of range. 2 figs., 1 tab.

  20. Electrical and thermal tuning of quality factor and free spectral range of optical resonance of nematic liquid crystal microdroplets

    Science.gov (United States)

    Sofi, Junaid Ahmad; Mohiddon, M. A.; Dutta, N.; Dhara, Surajit

    2017-08-01

    We experimentally study the effect of temperature and electric field on the quality (Q ) factor and free spectral range (FSR) of whispering-gallery-mode optical resonance of dye-doped nematic liquid crystal microdroplets. Both the Q factor and the FSR are highly sensitive to the temperature and electric field and are tunable. The Q factor decreases, whereas the FSR increases substantially, with increasing temperature and electric field. The variation of the Q factor and FSR is understood based on the change in the effective refractive index and the dynamic size of the microdroplets.

  1. Loss Distribution and Thermal Behaviour of the Y-source Converter for a Wide Power and Voltage Range

    DEFF Research Database (Denmark)

    Gadalla, Brwene Salah Abdelkarim; Schaltz, Erik; Siwakoti, Yam Prasad

    2017-01-01

    The Y-source converter is one of the recent proposed impedance source converters. It has some advantages as having a high voltage gain between the input and output voltage sides using very small duty cycle ratios. For many applications, the input voltage needs to be boosted to higher output voltage...... and power range is presented. The influence of the heat losses generated in the converter is also considered for different analysis. A simulation model is developed and verified experimentally rated at 300 W....

  2. Thermally driven long-range magnon spin currents in yttrium iron garnet due to intrinsic spin Seebeck effect

    Science.gov (United States)

    Giles, Brandon L.; Yang, Zihao; Jamison, John S.; Gomez-Perez, Juan M.; Vélez, Saül; Hueso, Luis E.; Casanova, Fèlix; Myers, Roberto C.

    2017-11-01

    The longitudinal spin Seebeck effect refers to the generation of a spin current when heat flows across a normal metal/magnetic insulator interface. Most explanations of the spin Seebeck effect use the interfacial temperature difference as the conversion mechanism between heat and spin fluxes. However, recent theoretical and experimental works claim that a magnon spin current is generated in the bulk of a magnetic insulator even in the absence of an interface. This is the so-called intrinsic spin Seebeck effect. Here, by utilizing a nonlocal spin Seebeck geometry, we provide additional evidence that the total magnon spin current in the ferrimagnetic insulator yttrium iron garnet (YIG) actually contains two distinct terms: one proportional to the gradient in the magnon chemical potential (pure magnon spin diffusion), and a second proportional to the gradient in magnon temperature (∇ Tm ). We observe two characteristic decay lengths for magnon spin currents in YIG with distinct temperature dependences: a temperature independent decay length of ˜10 μ m consistent with earlier measurements of pure (∇ Tm=0 ) magnon spin diffusion, and a longer decay length ranging from about 20 μ m around 250 K and exceeding 80 μ m at 10 K. The coupled spin-heat transport processes are modeled using a finite element method revealing that the longer-range magnon spin current is attributable to the intrinsic spin Seebeck effect (∇ Tm≠0 ), whose length scale increases at lower temperatures in agreement with our experimental data.

  3. The flap by flap dissection in terminal ballistic applied to less lethal weapons.

    Science.gov (United States)

    de Freminville, Humbert; Rongieras, Fréderic; Prat, Nicolas; Voiglio, Eric J

    2011-06-01

    Medical examiners often have to solve questions such as firing distance and bullet trajectory for lethal weapons. Knowledge in the field of terminal ballistics has increased during the last 30 years and layer by layer dissection reveals superficial wounds that can be linked with the permanent cavity. At the end of the 1990s, terminal ballistics also focused on less lethal weapons and their wounds. Here, 2 different less lethal weapons with single bullets were tested on nonembalmed and undressed cadavers (N = 26) at different ranges and speeds. We have developed a technique for dissection which we call flap by flap dissection that reveals the advantage of the bullet-skin-bone entity, the absence of wounds linking its components and range of less lethal weapons.

  4. Weapons of Mass Destruction: Texas National Guard Initiatives

    National Research Council Canada - National Science Library

    Sterner, Jeanette

    2000-01-01

    .... The era of conventional weapons and conventional tactics is over. The arsenal of the world is now comprised of chemical, biological and nuclear weapons collectively known as weapons of mass destruction (WMD...

  5. Thermal ablation of WHHLMI rabbit atherosclerotic plaque by quantum cascade laser in the 5.7-μm wavelength range

    Science.gov (United States)

    Hashimura, Keisuke; Ishii, Katsunori; Akikusa, Naota; Edamura, Tadataka; Yoshida, Harumasa; Awazu, Kunio

    2013-03-01

    We evaluated the utility of a compact and high-power quantum cascade laser (QCL) in the 5.7 μm wavelength range for less-invasive laser angioplasty. Atherosclerotic plaques mainly consist of cholesteryl esters. The wavelength of 5.75 μm is well absorbed in C=O stretching vibration mode of cholesteryl esters. Our previous study achieved to make cutting differences between a normal tunica intima of an artery and an atherosclerotic lesions using a nanosecond pulsed laser by difference-frequency generation (DFG laser) at the wavelength of 5.75 μm. For realizing a clinical application of this technique, a compact laser device is required. In this study, QCL irradiation effects to a porcine normal aorta were compared with DFG laser. In addition QCL irradiation effects to an atherosclerotic aorta of myocardial infarction-prone Watanabe heritable hyperlipidemic rabbit (WHHLMI rabbit) and a normal aorta were observed. As a result, the QCL could make cutting difference between the rabbit atherosclerotic aorta and the normal aorta. On the other hand, the QCL induced more thermal damage to porcine normal aorta than the DFG laser at the irradiation condition of comparable ablation depth. In conclusion, the possibility of less-invasive and selective treatment of atherosclerotic plaques using the QCL in the 5.7 μm wavelength range was revealed, although improvement of QCL was required to prevent the thermal damage of a normal artery.

  6. Weapon Acquisition Program Outcomes and Efforts to Reform DOD’s Acquisition Process

    Science.gov (United States)

    2016-05-09

    Range Strike Carrier replacement KC-46 Tanker Ohio Class Replacement DEFENSE ACQUISITIONS: Assessments of Selected Weapon Programs (GAO-16-329SP...202-512-9310 Objectives This is GAO’s 14th annual assessment of DOD weapon system acquisitions, an area that has been on GAO’s high-risk list for...amount of future development funding required is likely due to newer programs with less risk entering system development. Changes in the 2015

  7. US changes course on nuclear-weapons strategy

    Science.gov (United States)

    Gwynne, Peter

    2010-05-01

    US President Barack Obama has signalled a new approach to nuclear-weapons policy that limits their use against other states and documents how the country will ensure the viability of existing stockpiles. The Nuclear Posture Review (NPR), which sets out the US's nuclear strategy over a 10-year period, also calls for a highly skilled workforce to ensure "the long-term safety, security and effectiveness of the nuclear arsenal and to support the full range of nuclear-security work".

  8. Radioactive Fallout From Nuclear Weapons Testing ...

    Science.gov (United States)

    2017-08-07

    Detonating nuclear weapons above ground sends radioactive materials into the atmosphere from the ground level up to very high elevations. Overtime, these materials settle out of the atmosphere and fall to the ground. Fallout typically contains hundreds of different radionuclides. Since the end of aboveground nuclear weapons testing, radionuclides have largely decayed away.

  9. Nuclear Weapons, Psychology, and International Relations

    Science.gov (United States)

    Dougherty, James E.

    1976-01-01

    Fear of nuclear energy, nuclear weapons, and nuclear was is widespread among the peoples of the world. However, to what extent do the fears (both rational and irrational) of policy-making elites and political masses produce actual effects upon the behavior of governments (who, after all, control the use of nuclear weapons)? (Author/RK)

  10. Overview of surplus weapons plutonium disposition

    Energy Technology Data Exchange (ETDEWEB)

    Rudy, G.

    1996-05-01

    The safe disposition of surplus weapons useable plutonium is a very important and urgent task. While the functions of long term storage and disposition directly relate to the Department`s weapons program and the environmental management program, the focus of this effort is particularly national security and nonproliferation.

  11. Broken arrow: America's first lost nuclear weapon

    National Research Council Canada - National Science Library

    Leach, Norman

    2008-01-01

    .... Did an atomic bomb lie undetected for years in coastal British Columbia? Or was the nuclear weapon jettisoned and destroyed only miles from Canadian shores, becoming the world's first dirty bomb? Was this America's first lost nuclear weapon? Finally, and most baffling, did one of the missing crewmembers, the last man aboard, attempt to pilot the doomed aircraft back to its Alaskan base?"

  12. Nuclear weapons, nuclear effects, nuclear war

    Energy Technology Data Exchange (ETDEWEB)

    Bing, G.F.

    1991-08-20

    This paper provides a brief and mostly non-technical description of the militarily important features of nuclear weapons, of the physical phenomena associated with individual explosions, and of the expected or possible results of the use of many weapons in a nuclear war. Most emphasis is on the effects of so-called ``strategic exchanges.``

  13. Color image fusion for concealed weapon detection

    NARCIS (Netherlands)

    Toet, A.

    2003-01-01

    Recent advances in passive and active imaging sensor technology offer the potential to detect weapons that are concealed underneath a person's clothing or carried along in bags. Although the concealed weapons can sometimes easily be detected, it can be difficult to perceive their context, due to the

  14. The Legend of Hot Tar or Pitch as a Defensive Weapon

    DEFF Research Database (Denmark)

    Atzbach, Rainer

    2015-01-01

    production and use during the Middle Ages will be discussed with special focus on the application of tar pitch as an ingredient in medieval and post-medieval thermal weapons (especially Greek Fire, the firebomb and the fire arrow). The punishment of tarring and feathering will also be considered...

  15. Concealed weapons detection using electromagnetic resonances

    Science.gov (United States)

    Hunt, Allen R.; Hogg, R. Douglas; Foreman, William

    1998-12-01

    Concealed weapons pose a significant threat to both law enforcement and security agency personnel. The uncontrolled environments associated with peacekeeping and the move toward relaxation of concealed weapons laws here in the U.S. provide a strong motivation for developing weapons detection technologies which are noninvasive and can function noncooperatively. Existing weapons detection systems are primarily oriented to detecting metal and require the cooperation of the person being searched. The new generation of detectors under development that focuses primarily on imaging methods, faces problems associated with privacy issues. There remains a need for a weapons detector which is portable, detects weapons remotely, avoids the issues associated with privacy rights, can tell the difference between car keys and a knife, and is affordable enough that one can be issued to every peacekeeper and law enforcement officer. AKELA is developing a concealed weapons detector that uses wideband radar techniques to excite natural electromagnetic resonances that characterize the size, shape, and material composition of an object. Neural network processing is used to classify the difference between weapons and nuisance objects. We have constructed both time and frequency domain test systems and used them to gather experimental data on a variety of armed and unarmed individuals. These experiments have been performed in an environment similar to the operational environment. Preliminary results from these experiments show that it is possible to detect a weapon being carried by an individual from a distance of 10 to 15 feet, and to detect a weapon being concealed behind the back. The power required is about 100 milliwatts. A breadboard system is being fabricated and will be used by AKELA and our law enforcement partner to gather data in operationally realistic situations. While a laptop computer will control the breadboard system, the wideband radar electronics will fit in a box the

  16. Thermal comfort

    CSIR Research Space (South Africa)

    Osburn, L

    2010-01-01

    Full Text Available wider range of temperature limits, saving energy while still satisfying the majority of building occupants. It is also noted that thermal comfort varies significantly between individuals and it is generally not possible to provide a thermal environment...

  17. Taser and Conducted Energy Weapons.

    Science.gov (United States)

    LeClair, Thomas G; Meriano, Tony

    2015-01-01

    It is clear that CEWs are an increasingly prevalent law enforcement tool, adopted to address a complex and challenging problem. The potential for serious injury from a single deployment of a CEW is extremely low. The debate regarding the link between these electrical weapons and sudden in-custody death is likely to continue because their use is often in complex and volatile situations. Any consideration of injuries has to be put into that context. One must also consider what injuries to a subject would result if an alternative force method was used. Furthermore, the potential benefits of CEWs, including reduction in injuries to the public and law-enforcement officers, need to be considered.

  18. Characterising the online weapons trafficking on cryptomarkets.

    Science.gov (United States)

    Rhumorbarbe, Damien; Werner, Denis; Gilliéron, Quentin; Staehli, Ludovic; Broséus, Julian; Rossy, Quentin

    2017-12-08

    Weapons related webpages from nine cryptomarkets were manually duplicated in February 2016. Information about the listings (i.e. sales proposals) and vendors' profiles were extracted to draw an overview of the actual online trafficking of weapons. Relationships between vendors were also inferred through the analysis of online digital traces and content similarities. Weapons trafficking is mainly concentrated on two major cryptomarkets. Besides, it accounts for a very small proportion of the illicit trafficking on cryptomarkets compared to the illicit drugs trafficking. Among all weapon related listings (n=386), firearms only account for approximately 25% of sales proposal since the proportion of non-lethal and melee weapons is important (around 46%). Based on the recorded pseudonyms, a total of 96 vendor profiles were highlighted. Some pseudonyms were encountered on several cryptomarkets, suggesting that some vendors may manage accounts on different markets. This hypothesis was strengthened by comparing pseudonyms to online traces such as PGP keys, images and profiles descriptions. Such a method allowed to estimate more accurately the number of vendors offering weapons across cryptomarkets. Finally, according to the gathered data, the extent of the weapons trafficking on the cryptomarkets appear to be limited compared to other illicit goods. Copyright © 2017 Elsevier B.V. All rights reserved.

  19. Thermal expansion of CuInSe{sub 2} in the 11-1,073 K range: an X-ray diffraction study

    Energy Technology Data Exchange (ETDEWEB)

    Paszkowicz, W.; Minikayev, R.; Wojciechowski, T. [Institute of Physics PAS, Warsaw (Poland); Piszora, P. [A. Mickiewicz University, Faculty of Chemistry, Poznan (Poland); Trots, D. [Universitaet Bayreuth, Bayerisches Geoinstitut, Bayreuth (Germany); Knapp, M. [Institute for Applied Materials-Energy Storage Systems, Karlsruhe Institute of Technology, Karlsruhe (Germany); Bacewicz, R. [Warsaw University of Technology, Faculty of Physics, Warsaw (Poland)

    2014-08-15

    Structural and elastic properties of chalcopyrite-type CuInSe{sub 2} are determined in almost full stability range of temperature from 11 to 1,073 K, by in situ X-ray diffraction, employing a synchrotron-radiation source. The studied polycrystalline sample was prepared from a stoichiometric single crystal. Phase analysis reveals the formation of a trace amount of indium oxide impurity phase at the highest temperatures studied. From the obtained smooth lattice-parameter dependencies on temperature, the temperature dependencies of thermal expansion coefficients are derived. These coefficients are found to follow the trends previously reported for narrow temperature intervals. The present results provide a clear experimental evidence that the linear expansion coefficient is slightly negative below 47 K in both, a and c, directions; this temperature limit is in between the previously reported theoretical value (35 K) and the experimental ones (60 and 80 K) of such limit. (orig.)

  20. Hydrothermal alteration maps of the central and southern Basin and Range province of the United States compiled from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data

    Science.gov (United States)

    Mars, John L.

    2013-01-01

    Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data and Interactive Data Language (IDL) logical operator algorithms were used to map hydrothermally altered rocks in the central and southern parts of the Basin and Range province of the United States. The hydrothermally altered rocks mapped in this study include (1) hydrothermal silica-rich rocks (hydrous quartz, chalcedony, opal, and amorphous silica), (2) propylitic rocks (calcite-dolomite and epidote-chlorite mapped as separate mineral groups), (3) argillic rocks (alunite-pyrophyllite-kaolinite), and (4) phyllic rocks (sericite-muscovite). A series of hydrothermal alteration maps, which identify the potential locations of hydrothermal silica-rich, propylitic, argillic, and phyllic rocks on Landsat Thematic Mapper (TM) band 7 orthorectified images, and geographic information systems shape files of hydrothermal alteration units are provided in this study.

  1. Toward a nuclear weapons free world?

    Energy Technology Data Exchange (ETDEWEB)

    Maaranen, S.A. [Los Alamos National Lab., NM (United States). Center for International Security Affairs

    1996-09-01

    Doubts about the wisdom of relying on nuclear weapons are as old as nuclear weapons themselves. But despite this questioning, nuclear weapons came to be seen as the indispensable element of American (indeed Western) security during the Cold War. By the 1970s and 1980s, however, discontent was growing about the intense US-Soviet nuclear arms competition, as it failed to provide any enduring improvement in security; rather, it was seen as creating ever greater risks and dangers. Arms control negotiations and limitations, adopted as a means to regulate the technical competition, may also have relieved some of the political pressures and dangers. But the balance of terror, and the fears of it, continued. The Strategic Defense Initiative (SDI) under President Reagan was a very different approach to escaping from the precarious protection of nuclear weapons, in that it sought a way to continue to defend the US and the West, but without the catastrophic risks of mutual deterrence. As such, SDI connoted unhappiness with the precarious nuclear balance and, for many, with nuclear weapons in general. The disappearance of the Warsaw Pact, the disintegration of the Soviet Union, and the sudden end of the Cold War seemed to offer a unique opportunity to fashion a new, more peaceful world order that might allow for fading away of nuclear weapons. Scholars have foreseen two different paths to a nuclear free world. The first is a fundamental improvement in the relationships between states such that nuclear weapons are no longer needed. The second path is through technological development, e.g., missile defenses which could provide effective protection against nuclear attacks. The paper discusses nuclear weapon policy in the US, views of other nuclear states, the future of nuclear weapons, and issues in a less-nuclear world.

  2. Weapon container catalog. Volumes 1 & 2

    Energy Technology Data Exchange (ETDEWEB)

    Brown, L.A.; Higuera, M.C.

    1998-02-01

    The Weapon Container Catalog describes H-gear (shipping and storage containers, bomb hand trucks and the ancillary equipment required for loading) used for weapon programs and for special use containers. When completed, the catalog will contain five volumes. Volume 1 for enduring stockpile programs (B53, B61, B83, W62, W76, W78, W80, W84, W87, and W88) and Volume 2, Special Use Containers, are being released. The catalog is intended as a source of information for weapon program engineers and also provides historical information. The catalog also will be published on the SNL Internal Web and will undergo periodic updates.

  3. The Regulation of the Possession of Weapons at Gatherings | du ...

    African Journals Online (AJOL)

    The Dangerous Weapons Act 15 of 2013 provides for certain prohibitions and restrictions in respect of the possession of a dangerous weapon and it repeals the Dangerous Weapons Act 71 of 1968 as well as the different Dangerous Weapons Acts in operation in the erstwhile TBVC States. The Act also amends the ...

  4. Ultra Wide X-Band Microwave Imaging of Concealed Weapons and Explosives Using 3D-SAR Technique

    Directory of Open Access Journals (Sweden)

    P. Millot

    2015-01-01

    Full Text Available In order to detect and image concealed weapons and explosives, an electromagnetic imaging tool with its related signal processing is presented. The aim is to penetrate clothes and to find personal-born weapons and explosives under clothes. The chosen UWB frequency range covers the whole X-band. The frequency range is justified after transmission measurements of numerous clothes that are dry or slightly wet. The apparatus and the 3D near-field SAR processor are described. A strategy for contour identification is presented with results of some simulants of weapon and explosive. A conclusion is drawn on the possible future of this technique.

  5. Proliferation of nuclear weapons: opportunities for control and abolition.

    Science.gov (United States)

    Sidel, Victor W; Levy, Barry S

    2007-09-01

    Nuclear weapons pose a particularly destructive threat. Prevention of the proliferation and use of nuclear weapons is urgently important to public health. "Horizontal" proliferation refers to nation-states or nonstate entities that do not have, but are acquiring, nuclear weapons or developing the capability and materials for producing them. "Vertical" proliferation refers to nation-states that do possess nuclear weapons and are increasing their stockpiles of these weapons, improving the technical sophistication or reliability of their weapons, or developing new weapons. Because nation-states or other entities that wish to use or threaten to use nuclear weapons need methods for delivering those weapons, proliferation of delivery mechanisms must also be prevented. Controlling proliferation--and ultimately abolishing nuclear weapons--involves national governments, intergovernmental organizations, nongovernmental and professional organizations, and society at large.

  6. Thermal coagulation-induced changes of the optical properties of normal and adenomatous human colon tissues in vitro in the spectral range 400-1100 nm

    Energy Technology Data Exchange (ETDEWEB)

    Ao Huilan; Xing Da; Wei Huajiang; Gu Huaimin [MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, ina Normal University, Guangzhou 510631 (China); Wu Guoyong; Lu Jianjun [Department of Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080 (China)], E-mail: xingda@scnu.edu.cn

    2008-04-21

    The absorption coefficients, the reduced scattering coefficients and the optical penetration depths for native and coagulated human normal and adenomatous colon tissues in vitro were determined over the range of 400-1100 nm using a spectrophotometer with an internal integrating sphere system, and the inverse adding-doubling method was applied to calculate the tissue optical properties from diffuse reflectance and total transmittance measurements. The experimental results showed that in the range of 400-1100 nm there were larger absorption coefficients (P < 0.01) and smaller reduced scattering coefficients (P < 0.01) for adenomatous colon tissues than for normal colon tissues, and there were smaller optical penetration depths for adenomatous colon tissues than for normal colon tissues, especially in the near-infrared wavelength. Thermal coagulation induced significant increase of the absorption coefficients and reduced scattering coefficients for the normal and adenomatous colon tissues, and significantly reduced decrease of the optical penetration depths for the normal and adenomatous colon tissues. The smaller optical penetration depth for coagulated adenomatous colon tissues is a disadvantage for laser-induced thermotherapy (LITT) and photodynamic therapy (PDT). It is necessary to adjust the application parameters of lasers to achieve optimal therapy.

  7. Thermal Decomposition of Hydrocalumite over a Temperature Range of 400–1500°C and Its Structure Reconstruction in Water

    Directory of Open Access Journals (Sweden)

    Jiao Tian

    2014-01-01

    Full Text Available The thermal decomposition process and structure memory effect of hydrocalumite were investigated systematically for the first time over a wide temperature range of 400–1500°C. The calcined hydrocalumite samples and their rehydrated products were characterized by XRD, FT-IR, and SEM-EDX. The results show that the calcination products at temperatures ranging from 500 to 900°C are basically mayenite and lime, while one of the final products obtained by calcination at and above 1000°C is probably tricalcium aluminate (Ca3Al2O6. For the hydrocalumite samples calcined at temperatures below 1000°C, their lamellar structure can be completely recovered in deionized water at room temperature. However, the further increase of calcination temperature could impair the regeneration ability of hydrocalumite via contact with water. Upon calcination of hydrocalumite at 1000–1500°C followed by reaction with water, a stable compound tricalcium aluminate hexahydrate (Ca3Al2O6·6H2O was produced, which is the reason why less hydrocalumite could be regenerated.

  8. Distributed Weapons: Sea Strike Human Systems Integration in Tactical Tomahawk Weapons Control System Development

    National Research Council Canada - National Science Library

    Sullivan, Chris

    2004-01-01

    ... Damage Indication and Imagery to Tomahawk Command and Control stations. These capabilities have been successfully brought forward through the development of the Tactical Tomahawk Weapons Control System (TTWCS...

  9. Nuclear weapons and medicine: some ethical dilemmas.

    Science.gov (United States)

    Haines, A; de B White, C; Gleisner, J

    1983-01-01

    The enormous destructive power of present stocks of nuclear weapons poses the greatest threat to public health in human history. Technical changes in weapons design are leading to an increased emphasis on the ability to fight a nuclear war, eroding the concept of deterrence based on mutually assured destruction and increasing the risk of nuclear war. Medical planning and civil defence preparations for nuclear war have recently been increased in several countries although there is little evidence that they will be of significant value in the aftermath of a nuclear conflict. These developments have raised new ethical dilemmas for those in health professions. If there is any risk of use of weapons of mass destruction, then support for deterrence with these weapons as a policy for national or global security appears to be incompatible with basic principles of medical ethics and international law. The primary medical responsibility under such circumstances is to participate in attempts to prevent nuclear war. PMID:6668585

  10. Nuclear Weapons Effects (Self-Teaching Materials).

    Science.gov (United States)

    Defense Civil Preparedness Agency (DOD), Battle Creek, MI.

    Developed by the Civil Defense Preparedness Agency, this autoinstructional text deals with nuclear weapons effects. The destructive effects of an atomic blast are first introduced, and then long-term radioactive consequences are stressed. (CP)

  11. Weapons dismantlement issues in independent Ukraine

    Energy Technology Data Exchange (ETDEWEB)

    Zack, N.R. [Los Alamos National Lab., NM (United States); Kirk, E.J. [American Association for the Advancement of Science, Washington, DC (United States)

    1994-07-01

    The American Association for the Advancement of Science sponsored a seminar during September 1993, in Kiev, Ukraine, entitled ``Toward a Nuclear Free Future -- Barriers and Problems.`` It brought together Ukrainians, Belarusians, and Americans to discuss the legal, political, safeguards and security, economic, and technical dimensions of nuclear weapons dismantlement and destruction. US representatives initiated discussions on legal and treaty requirements and constraints, safeguards and security issues surrounding dismantlement, storage and disposition of nuclear materials, warhead transportation, and economic considerations. Ukrainians gave presentations on arguments for and against the Ukraine keeping nuclear weapons, Ukrainian Parliament non-approval of START I, alternative strategies for dismantling silos and launchers, and economic and security implications of nuclear weapons removal from the Ukraine. Participants from Belarus discussed proliferation and control regime issues, This paper will highlight and detail the issues, concerns, and possible impacts of the Ukraine`s dismantlement of its nuclear weapons.

  12. Computational Challenges in Nuclear Weapons Simulation

    Energy Technology Data Exchange (ETDEWEB)

    McMillain, C F; Adams, T F; McCoy, M G; Christensen, R B; Pudliner, B S; Zika, M R; Brantley, P S; Vetter, J S; May, J M

    2003-08-29

    After a decade of experience, the Stockpile Stewardship Program continues to ensure the safety, security and reliability of the nation's nuclear weapons. The Advanced Simulation and Computing (ASCI) program was established to provide leading edge, high-end simulation capabilities needed to meet the program's assessment and certification requirements. The great challenge of this program lies in developing the tools and resources necessary for the complex, highly coupled, multi-physics calculations required to simulate nuclear weapons. This paper describes the hardware and software environment we have applied to fulfill our nuclear weapons responsibilities. It also presents the characteristics of our algorithms and codes, especially as they relate to supercomputing resource capabilities and requirements. It then addresses impediments to the development and application of nuclear weapon simulation software and hardware and concludes with a summary of observations and recommendations on an approach for working with industry and government agencies to address these impediments.

  13. Dealing With Russian Tactical Nuclear Weapons

    National Research Council Canada - National Science Library

    Miller, Timothy

    2004-01-01

    .... tactical weapons in such talks as well--a move that the United States always resisted. Only in recent years have the tables turned, with the United States now taking the lead on nuclear initiatives...

  14. Is the Weaponization of Space Inevitable?

    National Research Council Canada - National Science Library

    Donatelli, Delia

    1997-01-01

    Development of technologies for directed energy and kinetic energy space weapons systems has progressed to the point where the United States could demonstrate concepts within 5-10 years if adequate funding is provided...

  15. Interdicting a Nuclear-Weapons Project

    National Research Council Canada - National Science Library

    Brown, Gerald; Carlyle, Matthew; Harney, Robert; Skroch, Eric; Wood, Kevin

    2007-01-01

    .... We develop and solve a max-min model that identifies resource-limited interdiction actions that maximally delay completion time of the proliferator's weapons project, given that the proliferator will...

  16. Europium-155 in Debris from Nuclear Weapons

    DEFF Research Database (Denmark)

    Aarkrog, Asker; Lippert, Jørgen Emil

    1967-01-01

    The lithium-drifted germanium detector enables determination of europium-155 on a routine basis in environmental samples contaminated with debris from nuclear weapons. From measurements of europium-155, cesium-144, and strontium-90 in air filters collected between 1961 and 1966, the yield...... of europium-155 from weapons was estimated at 1400 atoms per 10$^{6}$ fissions, which is close to the yield of europium-155 from fast fission of uranium-238....

  17. Russian Nuclear Weapons: Past, Present, and Future

    Science.gov (United States)

    2011-11-01

    this Byzantine policy- spinning can be advanced on the basis of scant evi- dence and gut feeling. The first one is that at the end of Medvedev’s...laboratory at Sarov, Patriarch Kirill, head of Russian Orthodox Church , endorsed nuclear weapons and nuclear de- terrence. Calling the closure of...majority of church lead- ers in the West, is in tune with the dominant view among the Russian public. Nuclear weapons are wide- ly regarded as a symbol

  18. Discouraging ROK Development of Nuclear Weapons

    OpenAIRE

    Center on Contemporary Conflict

    2013-01-01

    FY 2013-2014. Project Lead: Bruce Bennett Ironically, the greatest likelihood for nuclear proliferation in the coming years may come from U.S. allies. The development of nuclear weapons by South Korea (ROK) could result in a regional nuclear arms race and global failure of the Nonproliferation Treaty. As North Korean development of nuclear weapons continues irrespective of the U.S. security umbrella, fewer external options remain to ensure ROK security. To assist both the Office of the ...

  19. Overall View of Chemical and Biochemical Weapons

    Directory of Open Access Journals (Sweden)

    Vladimír Pitschmann

    2014-06-01

    Full Text Available This article describes a brief history of chemical warfare, which culminated in the signing of the Chemical Weapons Convention. It describes the current level of chemical weapons and the risk of using them. Furthermore, some traditional technology for the development of chemical weapons, such as increasing toxicity, methods of overcoming chemical protection, research on natural toxins or the introduction of binary technology, has been described. In accordance with many parameters, chemical weapons based on traditional technologies have achieved the limit of their development. There is, however, a big potential of their further development based on the most recent knowledge of modern scientific and technical disciplines, particularly at the boundary of chemistry and biology. The risk is even higher due to the fact that already, today, there is a general acceptance of the development of non-lethal chemical weapons at a technologically higher level. In the future, the chemical arsenal will be based on the accumulation of important information from the fields of chemical, biological and toxin weapons. Data banks obtained in this way will be hardly accessible and the risk of their materialization will persist.

  20. Overall view of chemical and biochemical weapons.

    Science.gov (United States)

    Pitschmann, Vladimír

    2014-06-04

    This article describes a brief history of chemical warfare, which culminated in the signing of the Chemical Weapons Convention. It describes the current level of chemical weapons and the risk of using them. Furthermore, some traditional technology for the development of chemical weapons, such as increasing toxicity, methods of overcoming chemical protection, research on natural toxins or the introduction of binary technology, has been described. In accordance with many parameters, chemical weapons based on traditional technologies have achieved the limit of their development. There is, however, a big potential of their further development based on the most recent knowledge of modern scientific and technical disciplines, particularly at the boundary of chemistry and biology. The risk is even higher due to the fact that already, today, there is a general acceptance of the development of non-lethal chemical weapons at a technologically higher level. In the future, the chemical arsenal will be based on the accumulation of important information from the fields of chemical, biological and toxin weapons. Data banks obtained in this way will be hardly accessible and the risk of their materialization will persist.

  1. Electroshock weapons can be lethal!

    Science.gov (United States)

    Lundquist, Marjorie

    2008-03-01

    Electroshock weapons (EWs)-stun guns, tasers, riot shields-are electroconductive devices designed to safely incapacitate healthy men neuromuscularly, so they are called nonlethal or less-lethal. EW firms seeking large nonmilitary markets targeted law enforcement and corrections personnel, who began using EWs in prisons/jails and on public patrol in 1980 in the USA. This shifted the EW-shocked population from healthy soldiers to a heterogeneous mix of both sexes, ages 6-92, in a wide variety of health conditions! An EW operates by disrupting normal physiological processes, producing transient effects in healthy people. But if a person's health is sufficiently compromised, the margin of safety can be lost, resulting in death or permanent health problems. 325 people have died after EW shock since 1980. Did the EW cause these deaths? Evidence indicates that EWs do play a causal role in most such deaths. EWs can be lethal for people in diabetic shock^1 (hypoglycemia), which may be why Robert Dziekanski-a Polish immigrant to Canada-died so quickly after he was tasered at Vancouver Airport: not having eaten for over 10 hours, he likely was severely hypoglycemic. The EW death rate in North America is 30 times higher than need be, because EW users have not been properly trained to use EWs on a heterogeneous population safely! ^1J. Clinical Engineering 30(3):111(2005).

  2. Imaging of Nuclear Weapon Trainers

    Energy Technology Data Exchange (ETDEWEB)

    Schwellenbach, David [National Security Technologies, LLC. (NSTec), Mercury, NV (United States)

    2017-12-06

    The Configurable Muon Tracker (CMT) is an adaptation of the existing drift tube detector commercially available from Decision Sciences International Corporation (DSIC). NSTec engineered the CMT around commercially available drift tube assemblies to make a detector that is more versatile than previous drift tube assemblies. The CMT became operational in February 2013. Traditionally, cosmic-ray muon trackers rely on near-vertical trajectory muons for imaging. Since there are scenarios where imaging using vertical trajectory muons is not practical, NSTec designed the CMT specifically for quick configurability to track muons from any trajectory. The CMT was originally designed to be changed from vertical imaging mode to horizontal imaging mode in a few hours with access to a crane or other lifting equipment. In FY14, locations for imaging weapon trainers and SNM were identified and it was determined that lifting equipment would not typically be available in experimental areas. The CMT was further modified and a portable lifting system was developed to allow reconfiguration of the CMT without access to lifting equipment at the facility. This system was first deployed at Los Alamos National Laboratory’s W-division, where several trainers were imaged in both horizontal and vertical modes. Real-time images have been compared in both modes showing that imaging can be done in both modes with the expected longer integration time for horizontal mode. Further imaging and post processing of the data is expected to continue into early FY15.

  3. Origins of the tactical nuclear weapons modernization program: 1969-1979

    Energy Technology Data Exchange (ETDEWEB)

    Yaffe, M.D.

    1991-01-01

    On December 12, 1979 NATO decided to deploy new long-range theater nuclear forces. This marked the first major change in NATO's nuclear stockpile since the adoption of the flexible-response strategy in 1967. The decision was controversial inasmuch as the Allies disagreed on the fundamental role of nuclear weapons in this strategy and, thereby, the types and number of weapons required for an effective deterrent posture. Thus, the decision is often described as purely politically motivated, in which the Americans reluctantly acquiesced to a European initiative for long-range weapons, prominently expressed by West German Chancellor Helmut Schmidt in 1977. Recently declassified US government documents reveal, however, that long-range missiles were part of a long-term comprehensive nuclear-modernization program conceived in the Pentagon during the period of 1973 through 1975, and presented to skeptical European elites who favored arms-control negotiations over costly new deployments.

  4. Investigation of the thermal regime and geologic history of the Cascade volcanic arc: First phase of a program for scientific drilling in the Cascade Range

    Energy Technology Data Exchange (ETDEWEB)

    Priest, G.R.

    1987-01-01

    A phased, multihole drilling program with associated science is proposed as a means of furthering our understanding of the thermal regime and geologic history of the Cascade Range of Washington, Oregon, and northern California. The information obtained from drilling and ancillary geological and geophysical investigations will contribute to our knowledge in the following general areas: (1) the magnitude of the regional background heat flow of parts of the Quaternary volcanic belt dominated by the most abundant volcanic rock types, basalt and basaltic andesite; (2) the nature of the heat source responsible for the regional heat-flow anomaly; (3) the characteristics of the regional hydrothermal and cold-water circulation; the rates of volcanism for comparison with models for the rate and direction of plate convergence of the Cascades; (5) the history of deformation and volcanism in the volcanic arc that can be related to subduction; (6) the present-day stress regime of the volcanic arc and the relation of these stresses to plate interactions and possible large earthquakes; and the current geometry of the subducted oceanic plate below the Cascade Range and the relationship of the plate to the distribution of heat flow, Quaternary volcanism, and Quaternary deformation. Phase I research will be directed toward a detailed investigation of the Santiam Pass segment. In concert with the Santiam Pass research, a detailed study of the nearby Breitenbush Hot Springs area is also recommended as a component of Phase I. The object of the Breitenbush research is to study one of the hottest known Cascade hydrothermal systems, which coincidentally also has a good geological and geophysical data base. A coordinated program of drilling, sampling, subsurface measurements, and surface surveys will be associated with the drilling of several holes.

  5. Reliable Prediction with Tuned Range-Separated Functionals of the Singlet-Triplet Gap in Organic Emitters for Thermally Activated Delayed Fluorescence (TADF)

    KAUST Repository

    Sun, Haitao

    2015-07-09

    The thermally activated delayed fluorescence (TADF) mechanism has recently attracted much interest in the field of organic light-emitting diodes (OLEDs). TADF relies on the presence of a very small energy gap between the lowest singlet and triplet excited states. Here, we demonstrate that time-dependent density functional theory (TD-DFT) in the Tamm-Dancoff Approximation can be very successful in the calculations of the lowest singlet and triplet excitation energies and the corresponding singlet-triplet gap when using nonempirically tuned range-separated functionals. Such functionals provide very good estimates in a series of 17 molecules used in TADF-based OLED devices, with mean absolute deviations of 0.15 eV for the vertical singlet excitation energies and 0.09 eV [0.07 eV] for the adiabatic [vertical] singlet-triplet energy gaps as well as low relative errors and high correlation coefficients compared to the corresponding experimental values. They significantly outperform conventional functionals, a feature which is rationalized on the basis of the amount of exact-exchange included and the delocalization error. The present work provides a reliable theoretical tool for the prediction and development of novel TADF-based materials with low singlet-triplet energetic splittings.

  6. Thermal Annealing to Modulate the Shape Memory Behavior of a Biobased and Biocompatible Triblock Copolymer Scaffold in the Human Body Temperature Range.

    Science.gov (United States)

    Merlettini, Andrea; Gigli, Matteo; Ramella, Martina; Gualandi, Chiara; Soccio, Michelina; Boccafoschi, Francesca; Munari, Andrea; Lotti, Nadia; Focarete, Maria Letizia

    2017-08-14

    A biodegradable and biocompatible electrospun scaffold with shape memory behavior in the physiological temperature range is here presented. It was obtained starting from a specifically designed, biobased PLLA-based triblock copolymer, where the central block is poly(propylene azelate-co-propylene sebacate) (P(PAz60PSeb40)) random copolymer. Shape memory properties are determined by the contemporary presence of the low melting crystals of the P(PAz60PSeb40) block, acting as switching segment, and of the high melting crystal phase of PLLA blocks, acting as physical network. It is demonstrated that a straightforward annealing process applied to the crystal phase of the switching element gives the possibility to tune the shape recovery temperature from about 25 to 50 °C, without the need of varying the copolymer's chemical structure. The thermal annealing approach here presented can be thus considered a powerful strategy for "ad hoc" programming the same material for applications requiring different recovery temperatures. Fibroblast culture experiments demonstrated scaffold biocompatibility.

  7. Prions: the danger of biochemical weapons

    Directory of Open Access Journals (Sweden)

    Eric Almeida Xavier

    2014-09-01

    Full Text Available The knowledge of biotechnology increases the risk of using biochemical weapons for mass destruction. Prions are unprecedented infectious pathogens that cause a group of fatal neurodegenerative diseases by a novel mechanism. They are transmissible particles that are devoid of nucleic acid. Due to their singular characteristics, Prions emerge as potential danger since they can be used in the development of such weapons. Prions cause fatal infectious diseases, and to date there is no therapeutic or prophylactic approach against these diseases. Furthermore, Prions are resistant to food-preparation treatments such as high heat and can find their way from the digestive system into the nervous system; recombinant Prions are infectious either bound to soil particles or in aerosols. Therefore, lethal Prions can be developed by malicious researchers who could use it to attack political enemies since such weapons cause diseases that could be above suspicion.

  8. An improved high-power battery with increased thermal operating range: C-LiFePO4//C-Li4Ti5O12

    Science.gov (United States)

    Zaghib, K.; Dontigny, M.; Guerfi, A.; Trottier, J.; Hamel-Paquet, J.; Gariepy, V.; Galoutov, K.; Hovington, P.; Mauger, A.; Groult, H.; Julien, C. M.

    2012-10-01

    The carbon-coated LiFePO4 and C-Li4Ti5O12 particles of 90 nm in diameter have been tested as active elements of electrodes of Li-ion batteries. The 18650-size cell using the usual electrolyte 1 mol L-1 LiPF6 in ethylene carbonate (EC) and diethylene carbonate (DEC) displays a charge capacity of 650 mAh at low C-rate and retains more than 80% of rated capacity at 60C charge rate (1 min). 2032-size coin cells have been tested with different electrolytes: 1.5 mol L-1 lithium tetrafluoroborate LiBF4 in EC+ γ-butyrolactone (GBL), and 0.5 mol L-1 lithium bis(trifluoromethanesulfonyl)imide (LiN(CF3SO2)2, LiTFSI) + 1 mol L-1 LiBF4 in EC + GBL, aiming to replace the less stable LiPF6 salt. The LiTFSI-based electrolyte can be used owing to the low operating voltage that avoids the corrosion of the aluminum of the collector. This electrolyte shows the best results as the performance is even higher at 60 °C. The infrared images show that the temperature of the cell never reaches this temperature during cycling, making this battery a high-power battery with remarkable thermal stability. The maximum temperature reached by the cell is 34 °C at 40C-rate and 40 °C at 60C. The free EC-based electrolytes even operate at 80 °C by using 1 mol L-1 lithium bis(fluorosulfonyl)imide (LiFSI) in GBL or 1 mol L-1 LiFSI in PC + GBL, thus increasing importantly the operating temperature range for the battery. The carbon coated on LTO depresses the evolution of gases during charge discharge.

  9. Guns in Intimate Partner Violence: Comparing Incidents by Type of Weapon

    Science.gov (United States)

    2017-01-01

    Abstract Objective: The goal of this study was to assess the frequency, nature, and outcome of weapon use in intimate partner violence (IPV) and to assess compliance with related gun policies. Methods: Data were drawn from forms police are mandated to complete at the scene of IPV in the fifth largest U.S. city during 2013. Proportions were calculated and odds ratios were adjusted for demographic and contextual characteristics and a Bonferroni correction for multiple statistical tests was applied. Results: Of the 35,413 incidents, 6,573 involved hands, fists, or feet, and 1,866 involved external weapons of which 576 were guns. Most incidents were male-on-female: 63.4% (no weapon), 77.4% (bodily weapon), 50.2% (nongun external weapon), and 79.5% (gun). Guns were used most often to threaten the partner (69.1%). When a gun (vs. bodily or nongun external weapon) was used, IPV victims were less likely to have visible injuries (adjusted odds ratio [AOR] = 0.64 and 0.23, respectively)—offenders were less likely to have pushed or shoved, grabbed, punched, or kicked the victim—but (victims) were more likely to be frightened (AOR = 3.13 and 1.49, respectively). Conclusions: Weapon use of any type by an intimate partner is associated with a wide range of violent offender behavior and multiple negative outcomes for victims. The use of a gun has implications that include, but go beyond, physical injury of the victim. Documentation of the enforcement of state law regarding gun removal merits improvement, which has important implications for the evaluation of policies designed to keep guns out of the hands of abusers. PMID:28134571

  10. Guns in Intimate Partner Violence: Comparing Incidents by Type of Weapon.

    Science.gov (United States)

    Sorenson, Susan B

    2017-03-01

    The goal of this study was to assess the frequency, nature, and outcome of weapon use in intimate partner violence (IPV) and to assess compliance with related gun policies. Data were drawn from forms police are mandated to complete at the scene of IPV in the fifth largest U.S. city during 2013. Proportions were calculated and odds ratios were adjusted for demographic and contextual characteristics and a Bonferroni correction for multiple statistical tests was applied. Of the 35,413 incidents, 6,573 involved hands, fists, or feet, and 1,866 involved external weapons of which 576 were guns. Most incidents were male-on-female: 63.4% (no weapon), 77.4% (bodily weapon), 50.2% (nongun external weapon), and 79.5% (gun). Guns were used most often to threaten the partner (69.1%). When a gun (vs. bodily or nongun external weapon) was used, IPV victims were less likely to have visible injuries (adjusted odds ratio [AOR] = 0.64 and 0.23, respectively)-offenders were less likely to have pushed or shoved, grabbed, punched, or kicked the victim-but (victims) were more likely to be frightened (AOR = 3.13 and 1.49, respectively). Weapon use of any type by an intimate partner is associated with a wide range of violent offender behavior and multiple negative outcomes for victims. The use of a gun has implications that include, but go beyond, physical injury of the victim. Documentation of the enforcement of state law regarding gun removal merits improvement, which has important implications for the evaluation of policies designed to keep guns out of the hands of abusers.

  11. Hydrothermal Alteration Maps of the Central and Southern Basin and Range Province of the United States Compiled From Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Data

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data and Interactive Data Language (IDL) logical operator algorithms were used to map...

  12. Implementing the chemical weapons convention

    Energy Technology Data Exchange (ETDEWEB)

    Kellman, B.; Tanzman, E. A.

    1999-12-07

    In 1993, as the CWC ratification process was beginning, concerns arose that the complexity of integrating the CWC with national law could cause each nation to implement the Convention without regard to what other nations were doing, thereby causing inconsistencies among States as to how the CWC would be carried out. As a result, the author's colleagues and the author prepared the Manual for National Implementation of the Chemical Weapons Convention and presented it to each national delegation at the December 1993 meeting of the Preparatory Commission in The Hague. During its preparation, the Committee of CWC Legal Experts, a group of distinguished international jurists, law professors, legally-trained diplomats, government officials, and Parliamentarians from every region of the world, including Central Europe, reviewed the Manual. In February 1998, they finished the second edition of the Manual in order to update it in light of developments since the CWC entered into force on 29 April 1997. The Manual tries to increase understanding of the Convention by identifying its obligations and suggesting methods of meeting them. Education about CWC obligations and available alternatives to comply with these requirements can facilitate national response that are consistent among States Parties. Thus, the Manual offers options that can strengthen international realization of the Convention's goals if States Parties act compatibly in implementing them. Equally important, it is intended to build confidence that the legal issues raised by the Convention are finite and addressable. They are now nearing competition of an internet version of this document so that interested persons can access it electronically and can view the full text of all of the national implementing legislation it cites. The internet address, or URL, for the internet version of the Manual is http: //www.cwc.ard.gov. This paper draws from the Manual. It comparatively addresses approximately thirty

  13. ORDNANCE CORPS VIEWS ELECTROMAGNETIC RADIATION HAZARDS TO WEAPONS SYSTEMS,

    Science.gov (United States)

    EXPLOSIVES INITIATORS, * ELECTROMAGNETIC RADIATION ), HAZARDS, ELECTROMAGNETIC SHIELDING, RADIOFREQUENCY POWER, ANTENNAS, ATTENUATORS, IMPEDANCE MATCHING, SENSITIVITY, WEAPON SYSTEMS, MODULATION, CIRCUITS, BROADBAND

  14. Combating the Proliferation of Weapons of Mass Destruction.

    Science.gov (United States)

    Jenkins, Bonnie

    1997-01-01

    Reveals the growing threat posed to all countries by the proliferation of weapons of mass destruction. Discusses the international effort combating this proliferation including the Nuclear Non-Proliferation Treaty, Strategic Arms Reduction Treaties, Biological Weapons Convention, and Chemical Weapons Convention. Also considers regional arms…

  15. What Do Americans Know about Nuclear Weapons?

    Science.gov (United States)

    Zweigenhaft, Richard L.

    1984-01-01

    Reports on a survey of knowledge of and attitudes toward nuclear weapons. Respondents (N=938) were students and adults aged 15 to 89 who completed a 51-item questionnaire. Also reports on an experiment in which college students (N=166) were given the survey under one of four different conditions. (JN)

  16. 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…

  17. Nuclear Weapons: Concepts, Issues, and Controversies.

    Science.gov (United States)

    Reardon, Betty; And Others

    1983-01-01

    The schools must confront and deal with the issues of the nuclear weapons controversy on pain of ceasing to be relevant to the critical needs of the rising generation. Every aspect of the nuclear arms controversy needs to be discussed in secondary and university classrooms. (RM)

  18. Cognitive Consistency in Beliefs about Nuclear Weapons.

    Science.gov (United States)

    Nelson, Linden

    The paper details a study supporting the hypothesis that people's opinions about nuclear arms control are influenced by their logically relevant beliefs about nuclear weapons, nuclear war, and the Soviet Union. The hypothesis should not be construed to imply that these beliefs are the only influences or the most powerful influences on arms control…

  19. The Spear: An Effective Weapon Since Antiquity

    Directory of Open Access Journals (Sweden)

    Robert E. Dohrenwend

    2012-07-01

    Full Text Available The spear is perhaps man’s oldest weapon, and may even be his oldest tool. Over the hundreds of thousands of years of the weapon’s existence, it evolved from a pointed stick into an efficient hunting missile, and then became the most effective hand-held bladed weapon humans ever devised. The spear and its use is the only martial art originally devised for use against species other than our own, and more than any other weapon, the spear emphasizes the relationship between hunting and warfare. Virtually without exception, the spear is present wherever there are humans. The spear may claim to be the senior martial art, and the weapon is still in use today. Early techniques are preserved by the small number of Japanese sojutsu schools, and modern Chinese martial artists have developed elegant and impressive gymnastic routines for the spear. The javelin throw is a modern Olympic track and field event, and there are people who have resurrected the Aztec atlatl for sporting competition. Today, the spear is still used in Europe for hunting wild boar, and the continued issue of the obsolete bayonet to modern soldiers testifies to a deep, almost instinctive respect still possessed by the military for the spear.

  20. Recoil Considerations for Shoulder-Fired Weapons

    Science.gov (United States)

    2012-05-01

    close to reaching the muzzle, and the bolt is thrust rearward by the propellant gases against the action of a spring. The impulse generated before...weapon at the hip and adjusting fire (to the desired impact point) by *Incidentally, there have been

  1. Optical countermeasures against CLOS weapon systems

    NARCIS (Netherlands)

    Toet, A.; Benoist, K.W.; Lingen, J.N.J. van; Schleijpen, H.M.A.

    2013-01-01

    There are many weapon systems in which a human operator acquires a target, tracks it and designates it. Optical countermeasures against this type of systems deny the operator the possibility to fulfill this visual task. We describe the different effects that result from stimulation of the human

  2. Nuclear Weapon Testing Limitations and International Security

    Science.gov (United States)

    Corden, Pierce S.

    2017-01-01

    For over 50 years stopping nuclear weapon tests has been sought to support achieving international security without nuclear weapons. Testing is the critical path beyond primitive fission devices, e.g. to develop thermonuclear weapons, reduce weight and volume and increase yield. The 1958 Geneva Conference of Experts considered ways to verify a test ban. With then-limitations on seismology, and lack of in-country monitoring and on-site inspections, the 1963 Limited Test Ban Treaty prohibits testing only in the atmosphere, outer space and under water, and is verified by National Technical Means. The US and USSR agreed to a limit of 150 kilotons on underground explosions in the 1970s-80s. The 1996 Comprehensive Nuclear-Test-Ban Treaty bans all nuclear explosions. Its International Monitoring System - seismic, hydroacoustic, infrasound and radionuclide sensors - is being used, and has easily detected testing by the DPRK. On-site inspections will be available under an in-force Treaty. A 2012 National Academy report concludes that cheating attempts would not undermine U.S. security, and the program for monitoring and extending the life of US weapons has succeeded since US testing ceased in 1992.

  3. The Control of Chemical and Biological Weapons.

    Science.gov (United States)

    Alexander, Archibald S.; And Others

    This book is composed of four papers prepared to illuminate the problem areas which might arise if the policies of the 1925 Geneva Protocol and other measures to limit chemical and biological weapons are ratified by the United States Senate. The papers included are: Legal Aspects of the Geneva Protocol of 1925; The Use of Herbicides in War: A…

  4. New Weapons in the War on Malaria

    International Development Research Centre (IDRC) Digital Library (Canada)

    against the mosquitoes that carry malaria. www .idrc.ca/tehip. New Weapons in the War on Malaria. Halting the disease is crucial to improving overall health in Tanzania. Evidence showing the large impact of malaria on Tanzanians' health has provided the impetus for significant policy changes on how to treat and prevent ...

  5. The Politics of Weapons Standardization in NATO.

    Science.gov (United States)

    1981-07-01

    to be the case a few years ago. You could buy a Volkswagen for less than a Ford; you could buy a Toyota for less than a Chevrolet. The purpose of the...purchase of the Belgian weapon is an inducement for the Belgians to purchase our F-16 aircraft. Which to me is worse than the current scandals involving

  6. Graph clustering for weapon discharge event detection and tracking in infrared imagery using deep features

    Science.gov (United States)

    Bhattacharjee, Sreyasee Das; Talukder, Ashit

    2017-05-01

    This paper addresses the problem of detecting and tracking weapon discharge event in an Infrared Imagery collection. While most of the prior work in related domains exploits the vast amount of complementary in- formation available from both visible-band (EO) and Infrared (IR) image (or video sequences), we handle the problem of recognizing human pose and activity detection exclusively in thermal (IR) images or videos. The task is primarily two-fold: 1) locating the individual in the scene from IR imagery, and 2) identifying the correct pose of the human individual (i.e. presence or absence of weapon discharge activity or intent). An efficient graph-based shortlisting strategy for identifying candidate regions of interest in the IR image utilizes both image saliency and mutual similarities from the initial list of the top scored proposals of a given query frame, which ensures an improved performance for both detection and recognition simultaneously and reduced false alarms. The proposed search strategy offers an efficient feature extraction scheme that can capture the maximum amount of object structural information by defining a region- based deep shape descriptor representing each object of interest present in the scene. Therefore, our solution is capable of handling the fundamental incompleteness of the IR imageries for which the conventional deep features optimized on the natural color images in Imagenet are not quite suitable. Our preliminary experiments on the OSU weapon dataset demonstrates significant success in automated recognition of weapon discharge events from IR imagery.

  7. Guidelines for Evaluation of Canadian Forces Indoor Firing Ranges

    National Research Council Canada - National Science Library

    Severs, Y

    1999-01-01

    Indoor Firing Ranges (IFR) within DND are typically used by Canadian Forces (CF) personnel, Cadets, RCMP, and civilian organizations for firing small bore weapons in support of both operational/ occupational and recreational requirements...

  8. The interaction between clothing and air weapon pellets.

    Science.gov (United States)

    Wightman, G; Wark, K; Thomson, J

    2015-01-01

    Comparatively few studies have been carried out on air weapon injuries yet there are significant number of injuries and fatalities caused by these low power weapons because of their availability and the public perception that because they need no licence they are assumed to be safe. In this study ballistic gel was tested by Bloom and rupture tests to check on consistency of production. Two series of tests were carried out firing into unclothed gel blocks and blocks loosely covered by different items of clothing to simulate attire (tee shirt, jeans, fleece, and jacket). The damage to the clothing caused by different shaped pellets when fired at different ranges was examined. The apparent hole size was affected by the shape of pellet (round, pointed, flat and hollow point) and whether damage was predominantly caused by pushing yarn to one side or by laceration of the yarn through cutting or tearing. The study also compared penetration into clothed gel and unclothed gel under identical conditions, and loose clothing greatly reduced penetration. With loose clothing at 9.1 m range clothing reduced penetration to 50-70% of the penetration of unclothed gel but at 18.3m range only 7 out of 36 shots penetrated the gel. This cannot be accounted for by the energy loss at the longer range (3-7% reduction from 9.1 m to 18.3 m range in unclothed gels) and it is suggested that impulse may have a role to play. Shots that did not penetrate the gel were used to estimate the possible stopping time for the pellet (around 75 μs) and force (1700 N) or stress (100 MPa) required to bring the pellet to a halt. Even with these low energy projectiles, cloth fibres were entrained in the gel showing the potential for penetration of the body and subsequent infection. Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.

  9. Chemical weapons: documented use and compounds on the horizon.

    Science.gov (United States)

    Bismuth, Chantal; Borron, Stephen W; Baud, Frederic J; Barriot, Patrick

    2004-04-01

    Man's inhumanity to man is expressed through a plethora of tools of modern warfare and terror. The use of chemical and biological weapons with the goals of assault, demoralisation and lethality has been documented in recent history, both on the battlefield and in urban terror against civilians. A general review of a few of the currently employed chemical weapons and biological toxins, along with a look at potential chemical weapons and tools of counter-terrorism, follows. While these weapons are fearsome elements, the dangers should be viewed in the context of the widespread availability and efficacy of conventional weapons.

  10. Sights for Light Antitank Weapons

    Science.gov (United States)

    1976-04-01

    23 49 TABLE 7 Gunner’s Estimate of Target-Range Classification When Using the Rifle Sights (Phase I, Sight I) Target Range (Meters) Ranae ...Class N 130 F N 210 M F N 290 M F N 370 M F N 450 M F Groqp §,ul?i<? 1 £i Speed 0 Number o f Obse rvations in Each Ranae Cl ass 6 0 0 6...CMocoro-rofs. •-I ^<\\iio««inorv in a nico invuo«r*.^r^ «-t«-«rj»o« «wor*- 2 I O 2 Ifi *■< OJO tf« «H (V fV ni««CM «r^OO • «H w w O *-t O

  11. Major International R and D Ranges and Test Facilities. Summary of Capabilities

    Science.gov (United States)

    1990-01-01

    SIDE- tors. WINDER AIM-9 air-to-air missile, a low.level anti- Lank Measures to increase reliability. I weapon and new weapons for use against...vehicles. Six cinesextants and a full range of high-speed Wildcat and Baker’s Strongpoint Ranges con- cameras provide documentary photography. * 189 SrI

  12. HuntIR thermal imagers for reconnaissance and targeting applications

    Science.gov (United States)

    Breiter, Rainer; Cabanski, Wolfgang A.; Ihle, Tobias; Mauk, Karl-Heinz; Rode, Werner

    2004-08-01

    A new family of light handheld military thermal imagers for reconnaissance and targeting applications was developed based on AIM's IR components like IR detection modules, command and control electronics and image processing units. Three different types of imagers provide solutions for different requirements in identification ranges of targets. The highest performance device makes use of a FPA MCT 384x288 MWIR detector with a motorized double field of view optics. An identification range up to 2400m for the NATO standard target was proven according to the FGAN-FOM TRM3 range model. The device provides a mechanical adaptation to weapon systems and provides target markers for common hand weapons of the German army. A single field of view MCT device for 1000m ranges and an uncooled device on the lower performance end complete the imager family. Electronics for intelligent power management from batteries and display electronics were developed to provide stand alone operation. The modular concept allows the use of the same image processing unit for all devices providing special features for best performance like scene-based non-uniformity correction together with an optical calibration element and dynamic reduction including automatic histogram equalization for optimized scene display and text or graphics overlay. Due to the modular concept the components like the image processing unit are already used and validated in programs like the thermal sight for the self defense gun of the reconnaissance vehicle FENNEK together with a 320x240 LWIR uncooled microbolometer detector or with the MCT 384x288 MWIR detection module in a thermal imager for the German army UAV Luna.

  13. Threat credibility and weapons of mass destruction.

    Science.gov (United States)

    Moores, Leon E

    2002-03-15

    Individual or collective preparedness for an attack involving weapons of mass destruction (WMD) must be based on an analysis of the threat. In threat assessment one takes many factors into account, including the physical and psychological parameters of the attacker. Although the potential devastation caused by WMD is significant, there are many limitations to the effective use of such weapons. Casualty rates will likely be measured in the thousands rather than millions because of factors that will be discussed. The psychological ramifications, it should be noted, the permutations of which have not yet been defined, will be much longer lasting. In this paper the author discusses these and other characteristics of the current threat.

  14. Making Weapons for the Terracotta Army

    Directory of Open Access Journals (Sweden)

    Marcos Martinón-Torres

    2011-10-01

    Full Text Available The Terracotta Army of the First Emperor of China is one of the most emblematic archaeological sites in the world. Many questions remain about the logistics of technology, standardisation and labour organisation behind the creation of such a colossal construction in just a few decades over 2,000 years ago. An ongoing research project co-ordinated between the UCL Institute of Archaeology and the Emperor Qin Shihang's Terracotta Army Museum is beginning to address some of these questions. This paper outlines some results of the typological, metric, microscopic, chemical and spatial analyses of the 40,000 bronze weapons recovered with the Terracotta Warriors. Thanks to a holistic approach developed specifically for this project, it is possible to reveal remarkable aspects of the organisation of the Qin workforce in production cells, of the standardisation, efficiency and quality-control procedures employed, and of the sophisticated technical knowledge of the weapon-makers.

  15. Emergency management of chemical weapons injuries.

    Science.gov (United States)

    Anderson, Peter D

    2012-02-01

    The potential for chemical weapons to be used in terrorism is a real possibility. Classes of chemical weapons include nerve agents, vesicants (blister agents), choking agents, incapacitating agents, riot control agents, blood agents, and toxic industrial chemicals. The nerve agents work by blocking the actions of acetylcholinesterase leading to a cholinergic syndrome. Nerve agents include sarin, tabun, VX, cyclosarin, and soman. The vesicants include sulfur mustard and lewisite. The vesicants produce blisters and also damage the upper airways. Choking agents include phosgene and chlorine gas. Choking agents cause pulmonary edema. Incapacitating agents include fentanyl and its derivatives and adamsite. Riot control agents include Mace and pepper spray. Blood agents include cyanide. The mechanism of toxicity for cyanide is blocking oxidative phosphorylation. Toxic industrial chemicals include agents such as formaldehyde, hydrofluoric acid, and ammonia.

  16. #TheWeaponizationOfSocialMedia

    DEFF Research Database (Denmark)

    Nissen, Thomas Elkjer

    In today’s conflict environment, transformed by information technology and of who can communicate and how, states, non-state actors, ad hoc activist networks and individuals create effect(s) in and through social network media in support of their objectives. #TheWeaponizationOfSocialMedia develops...... a framework for understanding how social network media shapes global politics and contemporary conflicts by examining their role as a platform for conduction intelligence collection, targeting, cyber-operations, psychological warfare and command and control activities. Through these, the weaponization...... of social media shows both the possibilities and the limitations of social network media in contemporary conflicts and makes a contribution to theorizing and studying contemporary conflicts....

  17. The US nuclear weapon infrastructure and a stable global nuclear weapon regime

    Energy Technology Data Exchange (ETDEWEB)

    Immele, John D [Los Alamos National Laboratory; Wagner, Richard L [Los Alamos National Laboratory

    2009-01-01

    US nuclear weapons capabilities -- extant force structure and nuclear weapons infrastructure as well as declared policy -- influence other nations' nuclear weapons postures, at least to some extent. This influence can be desirable or undesirable, and is, of course, a mixture of both. How strong the influence is, and its nature, are complicated, controversial, and -- in our view -- not well understood but often overstated. Divergent views about this influence and how it might shape the future global nuclear weapons regime seem to us to be the most serious impediment to reaching a national consensus on US weapons policy, force structure and supporting infrastructure. We believe that a paradigm shift to capability-based deterrence and dissuasion is not only consistent with the realities of the world and how it has changed, but also a desirable way for nuclear weapon postures and infrastructures to evolve. The US and other nuclear states could not get to zero nor even reduce nuclear arms and the nuclear profile much further without learning to manage latent capability. This paper has defined three principles for designing NW infrastructure both at the 'next plateau' and 'near zero.' The US can be a leader in reducing weapons and infrastructure and in creating an international regime in which capability gradually substitutes for weapons in being and is transparent. The current 'strategy' of not having policy or a Congressionally-approved plan for transforming the weapons complex is not leadership. If we can conform the US infrastructure to the next plateau and architect it in such a way that it is aligned with further arms reductions, it will have these benefits: The extant stockpile can be reduced in size, while the smaller stockpile still deters attack on the US and Allies. The capabilities of the infrastructure will dissuade emergence of new challenges/threats; if they emerge, nevertheless, the US will be able to deal with them in

  18. Thermal conductivity measurements of impregnated Nb3Sn coil samples in the temperature range of 3.5 K to 100 K

    Science.gov (United States)

    Koettig, T.; Maciocha, W.; Bermudez, S.; Rysti, J.; Tavares, S.; Cacherat, F.; Bremer, J.

    2017-02-01

    In the framework of the luminosity upgrade of the LHC, high-field magnets are under development. Magnetic flux densities of up to 13 T require the use of Nb3Sn superconducting coils. Quench protection becomes challenging due to the high stored energy density and the low stabilizer fraction. The thermal conductivity and diffusivity of the combination of insulating layers and Nb3Sn based cables are an important thermodynamic input parameter for quench protection systems and superfluid helium cooling studies. A two-stage cryocooler based test stand is used to measure the thermal conductance of the coil sample in two different heat flow directions with respect to the coil package geometry. Variable base temperatures of the experimental platform at the cryocooler allow for a steady-state heat flux method up to 100 K. The heat is applied at wedges style copper interfaces of the Rutherford cables. The respective temperature difference represents the absolute value of thermal conductance of the sample arrangement. We report about the measurement methodology applied to this kind of non-uniform sample composition and the evaluation of the used resin composite materials.

  19. Reinventing the weapons systems of the future

    OpenAIRE

    2000-01-01

    "If lucky, a surface ship has ten to twenty seconds to defend itself once a guided missile is launched from a nearby shore, or a sea-skimming missile is detected coming over the horizon. Because reaction times are so short, especially with ships now closer to shore missile batteries due to the Navy's focus on littoral missions, a directed energy weapon travelling near the speed of light becomes critical for survival, let alone defense..."

  20. Interdicting a Nuclear-Weapons Project

    Science.gov (United States)

    2009-08-01

    every fowl of tyrant wing. Shakespeare, The Phoenix and the Turtle 1. Introduction Sixty years after the United States detonated the first nuclear...be more difficult (e.g., EPA 2007). Highly enriched uranium (HEU) can be used in a gun-type or implosion -type fission weapon, but it can also fuel...thereby maximizes the project’s over- all completion time; simultaneously , it also represents the proliferator’s desire to minimize that time by choosing

  1. Imprecise Probability Methods for Weapons UQ

    Energy Technology Data Exchange (ETDEWEB)

    Picard, Richard Roy [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Vander Wiel, Scott Alan [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-05-13

    Building on recent work in uncertainty quanti cation, we examine the use of imprecise probability methods to better characterize expert knowledge and to improve on misleading aspects of Bayesian analysis with informative prior distributions. Quantitative approaches to incorporate uncertainties in weapons certi cation are subject to rigorous external peer review, and in this regard, certain imprecise probability methods are well established in the literature and attractive. These methods are illustrated using experimental data from LANL detonator impact testing.

  2. Nuclear Weapon Accident Response Procedures (NARP) Manual

    Science.gov (United States)

    1990-09-01

    an Nevada. N -S] assets may he included as a part of the effect into Canada or Mexico . Activities at the scene 1)o- ARti. of the accident include...OF POSSIBLE OR ACTUAL EXPOSURE TO RADIATION/CONTAMINATION AM[ or PM[ day/ vino /yr time (14) DURATION OF EXPOSURE HOURS - - MINUTES __.._-_ (15...to a nuclear weapon accident, at Kirtland AFB, New Mexico , offers a variety of courses commanders of designated response forces should ensure

  3. Defense Acquisitions: Assessments of Selected Weapon Programs

    Science.gov (United States)

    2017-03-01

    current Interim Polar System and serve as a polar adjunct to the Advanced EHF (AEHF) system. EPS consists of three segments : two EHF payloads hosted on...area on GAO’s high- risk list. DOD and Congress have taken steps to improve the acquisition of weapon systems. Still some programs continue to...DOD’s Selected Acquisition Reports from 2010, 2014, and 2015. GAO also collected program office data through two questionnaires on technology

  4. Non-Lethal Weapons (NLW) Reference Book

    Science.gov (United States)

    2012-01-01

    Acoustic Hailing Devices (AHD) 2 Enhanced Underwater Loudhailer (eLOUDTM) 3 X26 TASER ® 3 FN 303® 3 Stingball Grenade 4 12...RAVEN teams on both domestic bases and overseas transiting airfields. These kits consist of riot gear, TASER ®, munitions, and vehicle stopping...protection, and cordon and search operations. The U.S. Army employs this system. X26 TASER ®. A handheld weapon that launches two tethered barbs to

  5. The Nuclear Weapons Effects National Enterprise

    Science.gov (United States)

    2010-06-01

    spirals, which is likely to be cost prohibitive .27 Some notable progress, however, is starting to occur. The Army elevated its watchdog agency, the...widespread high-altitude electromagnetic pulse ( HEMP ). These tests were hastily planned and among the last to occur prior to the 1962 moratorium on nuclear... HEMP levels and system response for different weapon yields and burst altitudes did not occur. The observed effects on systems at the time of the

  6. The Chemical Weapons Convention -- Legal issues

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-08-01

    The Chemical Weapons Convention (CWC) offers a unique challenge to the US system of constitutional law. Its promise of eliminating what is the most purely genocidal type of weapon from the world`s arsenals as well as of destroying the facilities for producing these weapons, brings with it a set of novel legal issues. The reservations about the CWC expressed by US business people are rooted in concern about safeguarding confidential business information and protecting the constitutional right to privacy. The chief worry is that international verification inspectors will misuse their power to enter commercial property and that trade secrets or other private information will be compromised as a result. It has been charged that the Convention is probably unconstitutional. The author categorically disagrees with that view and is aware of no scholarly writing that supports it. The purpose of this presentation is to show that CWC verification activities can be implemented in the US consistently with the traditional constitutional regard for commercial and individual privacy. First, he very briefly reviews the types of verification inspections that the CWC permits, as well as some of its specific privacy protections. Second, he explains how the Fourth Amendment right to privacy works in the context of CWC verification inspections. Finally, he reviews how verification inspections can be integrated into these constitutional requirements in the SU through a federal implementing statute.

  7. New Nuclear Weapons and the Comprehensive Test Ban Treaty

    Science.gov (United States)

    Nelson, Robert A.

    2003-04-01

    Some U.S. politicians and members of U.S. weapon laboratories are urging the United States to develop a new generation of precision low-yield nuclear weapons "mininukes," with equivalent yields of a few kilotons of TNT or less. Small nuclear weapons are necessary, they argue, to fill the gap between large conventional munitions and our existing high-yield nuclear weapons. They argue that low-yield earth penetrating nuclear weapons could destroy hardened underground command bunkers and storage sites for chemical or biological weapons while "limiting collateral damage." We have shown, however, that even a small nuclear weapon with a yield of 1 kiloton (less than 10% of the Hiroshima bomb) would produce a fatal dose of radioactive fallout over a radius of several kilometers. Moreover, low-yield nuclear weapons are unlikely to destroy buried stockpiles of chemical and biological weapons and may actually disperse active agents over the countryside. If new nuclear weapons require full underground testing, this would end the nuclear testing moratorium that the United States and Russia have maintained since 1992 and would likely destroy prospects for eventual entry into force of the Comprehensive Test Ban Treaty.

  8. Exploring the Possible Use of Information Barriers for future Biological Weapons Verification Regimes

    Energy Technology Data Exchange (ETDEWEB)

    Luke, S J

    2011-12-20

    This report describes a path forward for implementing information barriers in a future generic biological arms-control verification regime. Information barriers have become a staple of discussion in the area of arms control verification approaches for nuclear weapons and components. Information barriers when used with a measurement system allow for the determination that an item has sensitive characteristics without releasing any of the sensitive information. Over the last 15 years the United States (with the Russian Federation) has led on the development of information barriers in the area of the verification of nuclear weapons and nuclear components. The work of the US and the Russian Federation has prompted other states (e.g., UK and Norway) to consider the merits of information barriers for possible verification regimes. In the context of a biological weapons control verification regime, the dual-use nature of the biotechnology will require protection of sensitive information while allowing for the verification of treaty commitments. A major question that has arisen is whether - in a biological weapons verification regime - the presence or absence of a weapon pathogen can be determined without revealing any information about possible sensitive or proprietary information contained in the genetic materials being declared under a verification regime. This study indicates that a verification regime could be constructed using a small number of pathogens that spans the range of known biological weapons agents. Since the number of possible pathogens is small it is possible and prudent to treat these pathogens as analogies to attributes in a nuclear verification regime. This study has determined that there may be some information that needs to be protected in a biological weapons control verification regime. To protect this information, the study concludes that the Lawrence Livermore Microbial Detection Array may be a suitable technology for the detection of the

  9. Measures to implement the Chemical Weapons Convention

    Energy Technology Data Exchange (ETDEWEB)

    Tanzman, E.; Kellman, B.

    1999-11-05

    This seminar is another excellent opportunity for those involved in preventing chemical weapons production and use to learn from each other about how the Chemical Weapons Convention (CWC) can become a foundation of arms control in Africa and around the world. The author is grateful to the staff of the Organization for the Prohibition of Chemical Weapons (OPCW) for inviting him to address this distinguished seminar. The views expressed in this paper are those of the authors alone, and do not represent the position of the government of the US nor or of any other institution. In 1993, as the process of CWC ratification was beginning, concerns arose that the complexity of integrating the treaty with national law would cause each nation to implement the Convention without regard to what other nations were doing, thereby causing inconsistencies among States Parties in how the Convention would be carried out. As a result the Manual for National Implementation of the Chemical Weapons Convention was prepared and presented it to each national delegation at the December 1993 meeting of the Preparatory Commission in The Hague. During its preparation, the Manual was reviewed by the Committee of Legal Experts on National Implementation of the Chemical Weapons Convention, a group of distinguished international jurists, law professors, legally-trained diplomats, government officials, and Parliamentarians from every region of the world, including Mica. In February 1998, the second edition of the Manual was published in order to update it in light of developments since the CWC entered into force on 29 April 1997. The second edition 1998 clarified the national implementation options to reflect post-entry-into-force thinking, added extensive references to national implementing measures that had been enacted by various States Parties, and included a prototype national implementing statute developed by the authors to provide a starting point for those whose national implementing

  10. Thermal stability of a highly-deformed warm-rolled tungsten plate in the temperature range 1100 °C to 1250 °C

    DEFF Research Database (Denmark)

    Alfonso Lopez, Angel; Juul Jensen, Dorte; Luo, G.-N.

    2015-01-01

    Pure tungsten is considered as armor material for the most critical parts of fusion reactors (i.e. the divertor and the first wall), among other reasons due to its high melting point (3422 °C) and recrystallization temperature. The thermal stability of a pure tungsten plate warm-rolled to a high...... be rationalized in terms of a logarithmic recovery kinetics and a Johnson-Mehl-Avrami-Kolmogorov recrystallization kinetics accounting for an incubation time of recrystallization. The observed time spans for recrystallization and the corresponding recrystallization activation energy for this highly deformed plate...

  11. Systems engineering analysis of kinetic energy weapon concepts

    Energy Technology Data Exchange (ETDEWEB)

    Senglaub, M.

    1996-06-01

    This study examines, from a systems engineering design perspective, the potential of kinetic energy weapons being used in the role of a conventional strategic weapon. Within the Department of Energy (DOE) complex, strategic weapon experience falls predominantly in the nuclear weapons arena. The techniques developed over the years may not be the most suitable methodologies for use in a new design/development arena. For this reason a more fundamental approach was pursued with the objective of developing an information base from which design decisions might be made concerning the conventional strategic weapon system concepts. The study examined (1) a number of generic missions, (2) the effects of a number of damage mechanisms from a physics perspective, (3) measures of effectiveness (MOE`s), and (4) a design envelope for kinetic energy weapon concepts. With the base of information a cut at developing a set of high-level system requirements was made, and a number of concepts were assessed against these requirements.

  12. Changes in graphite coefficient of thermal expansion due to fast neutron irradiation and applied stress in the temperature range 300C-1200C

    Energy Technology Data Exchange (ETDEWEB)

    Marsden, B.J. [AEA Technology Plc, Risley, Warrington, Cheshire (United Kingdom); Arai, Taketoshi [Oarai Research Establishment, Japan Atomic Energy Research Institute JAERI, Ibaraki-ken (Japan); McLachlan, N. [Nuclear Electric Ltd, Edinburgh, Scotland (United Kingdom)

    1998-09-01

    Changes in coefficient of thermal expansion (CTE) in nuclear graphite are important because they are related to dimensional change and the thermal stressing of graphite moderated reactor graphite components. The CTE of nuclear graphite can be modified by fast neutron irradiation, stress and creep strain. Various theories exist which relate the CTE of the individual graphite crystallite to the CTE of the polycrystalline graphite through a structure factor. This structure factor is a function of the graphite crystal orientation and the accommodation available due to local crystal porosity. The porosity can be taken up by raising the temperature of the graphite, which causes the lattice `c` spacing to expand, or by fast neutron irradiation induced crystal dimensional changes. It is also proposed that this porosity can be taken up by stressing unirradiated graphite, although there appears to be some evidence from Japan that the anisotropy of graphite is also altered by pre-stress. Annealing of creep strain specimens has shown that not all of irradiation induced creep strain is responsible for modifying CTE. 12 refs.

  13. MEDICAL ASPECT OF DEFENSE AGAINST WEAPONS OF MASS DESTRUCTION

    Directory of Open Access Journals (Sweden)

    Levent KENAR

    Full Text Available Since NBC weapons so called weapons of mass destruction cause massive deaths and injuries in a short period of time, medical aspect of NBC defence is of great importance as operational aspect is. Some measures against these weapons including the establishment of a first-aid and treatment system, a complete organisation and coordination, and conductance of training and intelligency items are discussed in this paper in details. [TAF Prev Med Bull 2004; 3(10.000: 243-259

  14. 76 FR 70317 - Continuation of the National Emergency With Respect to Weapons of Mass Destruction

    Science.gov (United States)

    2011-11-10

    ... With Respect to Weapons of Mass Destruction #0; #0; #0; Presidential Documents #0; #0; #0;#0;Federal... Weapons of Mass Destruction On November 14, 1994, by Executive Order 12938, the President declared a... weapons (weapons of mass destruction) and the means of delivering such weapons. On July 28, 1998, the...

  15. Non-thermal influence of the mm-range electromagnetic radiation on the peroxide oxidation of egg yolk lipoproteins (in English)

    Science.gov (United States)

    Bulavin, L. A.; Zabolotna, N. M.

    The effect of weak electromagnetic radiation in the millimetre range upon the chemiluminescence intensity accompanying the process of peroxide oxidization of lipoproteins was studied. It is shown that in the temperature range of 35div 43°C the intensity is independent of the temperature up to the experimental errors. It is though strongly dependent on the composition of the buffer solution and radiation frequency. The results are explained using a modified Onsager model.

  16. DOE Nuclear Weapon Reliability Definition: History, Description, and Implementation

    Energy Technology Data Exchange (ETDEWEB)

    Wright, D.L.; Cashen, J.J.; Sjulin, J.M.; Bierbaum, R.L.; Kerschen, T.J.

    1999-04-01

    The overarching goal of the Department of Energy (DOE) nuclear weapon reliability assessment process is to provide a quantitative metric that reflects the ability of the weapons to perform their intended function successfully. This white paper is intended to provide insight into the current and long-standing DOE definition of nuclear weapon reliability, which can be summarized as: The probability of achieving the specified yield, at the target, across the Stockpile-To-Target Sequence of environments, throughout the weapon's lifetime, assuming proper inputs.

  17. Biological and Chemical Weapons: Criminal Sanctions and Federal Regulations

    National Research Council Canada - National Science Library

    Garcia, Michael J

    2004-01-01

    .... In accordance with these obligations, the United States has enacted various federal requirements and criminal sanctions applying to biological and chemical weapons, Re cent anti4errorisrn legislation...

  18. Prevention of the Outer Space Weaponization

    Science.gov (United States)

    Zhukov, Gennady P.

    2002-01-01

    9 states. The satellites of various functions (early warning, communication, data acquisition, reconnaissance and navigation) were actively used and continue to be used with the purposes of raising efficiency of ground armed forces, especially in fight against international terrorism. At the same time such satellites are not a weapon in the sense of that word since they do not create the threats of armed attack in outer space or from outer space. Moreover, they promote maintaining of stability in the international relations. For this reason the reconnaissance and data acquisition satellites used for the verification of observance by States of the arms limitation agreements are under international protection as national technical means of the control. Similar protection is enjoyed by the early warning satellites. With the help of space communication facilities the more reliable operative connection of the statesmen is organized in the strained situations. By this way the probability of making of the incorrect retaliatory decisions in critical political situations is reduced. At the same time it's necessary to take into consideration that the activities of such satellite systems are tightly connected with ground armed forces of the states. the earth, what from the point of view of international law may be qualified as establishing a partial demilitarization regime in outer space. After the prohibition of anti-satellite weapons (ASAT) and anti-satellite (ASAT) weapons it will be possible to speak about establishing of an international legal regime of complete demilitarization in outer space eliminating any kinds of weapon from outer space. in a peaceful time. weaponization.The main task of this paper is to analyze and to discuss the present binding regime of the outer space deweaponization and particular measures on consolidation and strengthening of this regime. agreements of the Russian Federation and the USA into multilateral Treaties. Such "immunity" would cover

  19. Cardiac fibrillation risk of Taser weapons.

    Science.gov (United States)

    Leitgeb, Norbert

    2014-06-01

    The debate on potential health hazards associated with delivering electric discharges to incapacitated subjects, in particular on whether electric discharge weapons are lethal, less lethal or non-lethal, is still controversial. The cardiac fibrillation risks of Taser weapons X26 and X3 have been investigated by measuring the delivered high-tension pulses in dependence on load impedance. Excitation thresholds and sinus-to-Taser conversion factors have been determined by numerical modeling of endocardial, myocardial, and epicardial cells. Detailed quantitative assessment of cardiac electric exposure has been performed by numerical simulation at the normal-weighted anatomical model NORMAN. The impact of anatomical variation has been quantified at an overweight model (Visible Man), both with a spatial resolution of 2 × 2 × 2 mm voxels. Spacing and location of dart electrodes were systematically varied and the worst-case position determined. Based on volume-weighted cardiac exposure assessment, the fibrillation probability of the worst-case hit was determined to 30% (Taser X26) and 9% (Taser X3). The overall risk assessment of Taser application accounting for realistic spatial hit distributions was derived from training sessions of police officers under realistic scenarios and by accounting for the influence of body (over-)weight as well as gender. The analysis of the results showed that the overall fibrillation risk of Taser use is not negligible. It is higher at Taser X26 than at Taser X3 and amounts to about 1% for Europeans with an about 20% higher risk for Asians. Results demonstrate that enhancement as well as further reduction of fibrillation risk depends on responsible use or abuse of Taser weapons.

  20. Environmental Detection of Clandestine Nuclear Weapon Programs

    Science.gov (United States)

    Kemp, R. Scott

    2016-06-01

    Environmental sensing of nuclear activities has the potential to detect nuclear weapon programs at early stages, deter nuclear proliferation, and help verify nuclear accords. However, no robust system of detection has been deployed to date. This can be variously attributed to high costs, technical limitations in detector technology, simple countermeasures, and uncertainty about the magnitude or behavior of potential signals. In this article, current capabilities and promising opportunities are reviewed. Systematic research in a variety of areas could improve prospects for detecting covert nuclear programs, although the potential for countermeasures suggests long-term verification of nuclear agreements will need to rely on methods other than environmental sensing.

  1. Postulated accident scenarios in weapons disassembly

    Energy Technology Data Exchange (ETDEWEB)

    Payne, S.S. [Dept. of Energy, Albuquerque, NM (United States)

    1997-06-01

    A very brief summary of three postulated accident scenarios for weapons disassembly is provided in the paper. The first deals with a tetrahedral configuration of four generic pits; the second, an infinite planar array of generic pits with varying interstitial water density; and the third, a spherical shell with internal mass suspension in water varying the size and mass of the shell. Calculations were performed using the Monte Carlo Neutron Photon transport code MCNP4A. Preliminary calculations pointed to a need for higher resolution of small pit separation regimes and snapshots of hydrodynamic processes of water/plutonium mixtures.

  2. Nonstrategic Nuclear Weapons at an Inflection Point

    Science.gov (United States)

    2017-07-01

    commons.wikimedia.org/wiki/File%3AF-35A_flight_( cropped ).jpg. Figure 6. Clockwise from top left: 3M-54 Kalibr anti-ship missile, by Allocer (Own work...modernization of the nuclear production complex, the focus of US weapons efforts became refurbishment and replacement . New warhead designs were off-limits...fighter bomber. The Air Force selected a single version as a replacement for all legacy B61 bomb variants. The B61-12 features a new tail kit assembly

  3. The Regulation of the Possession of Weapons at Gatherings

    Directory of Open Access Journals (Sweden)

    Pieter du Toit

    2013-12-01

    Full Text Available The Dangerous Weapons Act 15 of 2013 provides for certain prohibitions and restrictions in respect of the possession of a dangerous weapon and it repeals the Dangerous Weapons Act 71 of 1968 as well as the different Dangerous Weapons Acts in operation in the erstwhile TBVC States. The Act also amends the Regulation of Gatherings Act 205 of 1993 to prohibit the possession of any dangerous weapon at a gathering or demonstration. The Dangerous Weapons Act provides for a uniform system of law governing the use of dangerous weapons for the whole of South Africa and it furthermore no longer places the onus on the individual charged with the offence of the possession of a dangerous weapon to show that he or she did not have any intention of using the firearm for an unlawful purpose. The Act also defines the meaning of a dangerous weapon. According to our court’s interpretation of the Dangerous Weapons Act 71 of 1968 a dangerous weapon was regarded as an object used or intended to be used as a weapon even if it had not been designed for use as a weapon. The Act, however, requires the object to be capable of causing death or inflicting serious bodily harm if it were used for an unlawful purpose. The possession of a dangerous weapon, in circumstances which may raise a reasonable suspicion that the person intends to use it for an unlawful purpose, attracts criminal liability. The Act also provides a useful set of guidelines to assist courts to determine if a person charged with the offence of the possession of a dangerous weapon had indeed intended to use the weapon for an unlawful purpose. It seems, however, that the Act prohibits the possession of a dangerous weapon at gatherings, even if the person carrying the weapon does not intend to use it for an unlawful purpose. The state will, however, have to prove that the accused had the necessary control over the object and the intention to exercise such control, as well as that the object is capable of

  4. Thermal coagulation-induced changes of the optical properties of normal and adenomatous human colon tissues in vitro in the spectral range 400 1100 nm

    Science.gov (United States)

    Ao, Huilan; Xing, Da; Wei, Huajiang; Gu, Huaimin; Wu, Guoyong; Lu, Jianjun

    2008-04-01

    The absorption coefficients, the reduced scattering coefficients and the optical penetration depths for native and coagulated human normal and adenomatous colon tissues in vitro were determined over the range of 400-1100 nm using a spectrophotometer with an internal integrating sphere system, and the inverse adding-doubling method was applied to calculate the tissue optical properties from diffuse reflectance and total transmittance measurements. The experimental results showed that in the range of 400-1100 nm there were larger absorption coefficients (P thermotherapy (LITT) and photodynamic therapy (PDT). It is necessary to adjust the application parameters of lasers to achieve optimal therapy.

  5. 15 CFR 710.6 - Relationship between the Chemical Weapons Convention Regulations and the Export Administration...

    Science.gov (United States)

    2010-01-01

    ... INDUSTRY AND SECURITY, DEPARTMENT OF COMMERCE CHEMICAL WEAPONS CONVENTION REGULATIONS GENERAL INFORMATION AND OVERVIEW OF THE CHEMICAL WEAPONS CONVENTION REGULATIONS (CWCR) § 710.6 Relationship between the Chemical Weapons Convention Regulations and the Export Administration Regulations, the International...

  6. 77 FR 59891 - Proposed Information Collection; Comment Request; Chemical Weapons Convention Declaration and...

    Science.gov (United States)

    2012-10-01

    ... Bureau of Industry and Security Proposed Information Collection; Comment Request; Chemical Weapons[email protected] . SUPPLEMENTARY INFORMATION: ] I. Abstract The Chemical Weapons Convention Implementation Act of 1998 and Commerce Chemical Weapons Convention Regulations (CWCR) specify the rights...

  7. 77 FR 22559 - Proposed Information Collection; Comment Request; Chemical Weapons Convention Provisions of the...

    Science.gov (United States)

    2012-04-16

    ... Bureau of Industry and Security Proposed Information Collection; Comment Request; Chemical Weapons...) 482-4895, [email protected] . SUPPLEMENTARY INFORMATION: I. Abstract The Chemical Weapons... direct or indirect transfer of chemical weapons. This collection implements the following provision of...

  8. AIM thermal imagers for reconnaissance and targeting applications

    Science.gov (United States)

    Breiter, Rainer; Cabanski, Wolfgang; Ihle, Tobias; Mauk, Karl-Heinz; Rode, Werner

    2006-05-01

    AIM has developed a thermal weapon sight HuntIR based on a cooled MCT 384x288 MWIR detection module combining long range battlefield surveillance and target engagement purposes. Since December 2004 the device is in service for the Germany Future Infantryman (IdZ) basic system. To satisfy the demands of the follow-up program German Future Infantryman extended system (IdZ ES) additional components like a laser range finder, digital magnetic compass and a wireless data link will be included to provide e.g. an improved hit rate by accurate range data. To reduce power consumption and increase operation time of the actual device on the one hand and give the possibility to include new components and functions a new optimized command and control electronics and image processing unit was designed using latest digital signal processors resulting in lower power consumption and higher computing power. This allows also an implementation of additional image enhancement functions. The design concept of the upgraded HuntIR is introduced together which the features of the new electronics. Additionally some new implementations will be presented concerning the existing HuntIR device like fire control for the 40mm Grenade Machine Gun made by Heckler&Koch which where possible due to the reprogrammable architecture of the design. Also an uncooled IR Imaging Module designed for use in small UAVs and short range thermal weapon sights was successfully tested in the German Army small UAV ALADIN made by EMT. After the first flight trials the design was revised to incorporate lessons learned including e.g. an athermal lens design to avoid any need of focussing. The features of the revised design will be presented.

  9. Optimization of the level and range of working temperature of the PCM in the gypsum-microencapsulated PCM thermal energy storage unit for summer conditions in Central Poland

    Science.gov (United States)

    Łapka, P.; Jaworski, M.

    2017-10-01

    In this paper thermal energy storage (TES) unit in a form of a ceiling panel made of gypsum-microencapsulated PCM composite with internal U-shaped channels was considered and optimal characteristics of the microencapsulated PCM were determined. This panel may be easily incorporated into, e.g., an office or residential ventilation system in order to reduce daily variations of air temperature during the summer without additional costs related to the consumption of energy for preparing air parameters to the desired level. For the purpose of the analysis of heat transfer in the panel, a novel numerical simulator was developed. The numerical model consists of two coupled parts, i.e., the 1D which deals with the air flowing through the U-shaped channel and the 3D which deals with heat transfer in the body of the panel. The computational tool was validated based on the experimental study performed on the special set-up. Using this tool an optimization of parameters of the gypsum-microencapsulated PCM composite was performed in order to determine its most appropriate properties for the application under study. The analyses were performed for averaged local summer conditions in Warsaw, Poland.

  10. Latitudinal cline in weapon allometry and phenology of the European stag beetle

    Directory of Open Access Journals (Sweden)

    Federico Romiti

    2017-07-01

    Full Text Available Animal body size commonly exhibits a remarkable variation in response to environmental conditions. Latitude, when correlated with temperature, rainfall and seasonality, represents one of the main determinants of variation in body size, as well as in allometry. It has long been recognised that populations of larger body size are found in colder environments (Bergmann’s Rule, a cornerstone of evolutionary ecology. However, the way in which latitude might influence investment in exaggerated weapons of animals has received little attention. The European stag beetle Lucanus cervus (Linnaeus, 1758 is the focus of this study. Males of this species exhibit exaggerated mandibles, mainly used as weapons during intra-sexual conflicts. Five populations ranging from northern Italy to the southern limit of the distribution of L. cervus were analysed. Combining morphological and phenological data, latitudinal variation in body size, weapon investment and activity period of the adults were evaluated. The analysis of the allometry of mandibles strongly supported the presence of two male morphs. Large males (major morph invest significantly more in weapons compared to males of the minor morph. Consistent with Bergmann’s Rule, these results confirmed that the stag beetle body size increased at higher latitudes (N and that this increase in size triggers an arms race which leads to further exaggeration of male weapons which is particularly evident in major males. In this morph, the mandible allometric coefficient line was steeper for the northern populations. The activity period also varied with latitude, beginning later at lower latitudes. Characterisation and comparison of adult phenologies provide valuable data to be used in the design of monitoring programmes for this threatened species and are important for modelling the species responses to climate change.

  11. TRACKING SURPLUS PLUTONIUM FROM WEAPONS TO DISPOSITION

    Energy Technology Data Exchange (ETDEWEB)

    Allender, J.; Beams, J.; Sanders, K.; Myers, L.

    2013-07-16

    Supporting nuclear nonproliferation and global security principles, beginning in 1994 the United States has withdrawn more than 50 metric tons (MT) of government-controlled plutonium from potential use in nuclear weapons. The Department of Energy (DOE), including the National Nuclear Security Administration, established protocols for the tracking of this "excess" and "surplus" plutonium, and for reconciling the current storage and utilization of the plutonium to show that its management is consistent with the withdrawal policies. Programs are underway to ensure the safe and secure disposition of the materials that formed a major part of the weapons stockpile during the Cold War, and growing quantities have been disposed as waste, after which they are not included in traditional nuclear material control and accountability (NMC&A) data systems. A combination of resources is used to perform the reconciliations that form the basis for annual reporting to DOE, to U.S. Department of State, and to international partners including the International Atomic Energy Agency.

  12. An exploration of equipping a future force warrior small combat unit with non-lethal weapons

    OpenAIRE

    Wittwer, Larry N.

    2006-01-01

    The U.S. military has an increasing requirement to prepare for and conduct urban operations (UO). This UO requirement spreads across the spectrum of conflict, from high intensity combat to peacekeeping and humanitarian missions (Stability and Support Operations--SASO), often simultaneously. Regardless of which portion(s) of the warfare spectrum U.S. forces are involved in, urban engagements are inevitable and present major challenges. Superior standoff weapons ranges and combined arms tactics...

  13. Someone at School Has a Weapon. What Should I Do?

    Science.gov (United States)

    ... animals talking about weapons and violence fascination with violent video games, television, and movies threatening or bullying others isolation from family and friends Of course, these signs don't necessarily mean that a person will become violent or bring a weapon to school. Still, you ...

  14. Hamburgian weapon delivery technology: a quantitative comparative approach

    DEFF Research Database (Denmark)

    Riede, Felix

    2010-01-01

    cran). Numerous studies have addressed the question of whether these points tipped arrows fired from bows, darts launched with the help of spear-throwers, or some other projectile delivery weapon. This paper approaches the question of Hamburgian weapon delivery technology from a quantitative...

  15. Factors associated with weapon use in maternal filicide.

    Science.gov (United States)

    Lewis, C F; Baranoski, M V; Buchanan, J A; Benedek, E P

    1998-05-01

    The objective of this study was to identify factors associated with weapon use in a group of filicidal women. Clinical data were gathered from the charts of sixty filicidal women evaluated at Michigan's Center for Forensic Psychiatry or through Connecticut's Psychiatric Security Review Board from 1970 to 1996. Factors associated with weapon use were determined using chi squares, ANCOVAS, and a logistic regression. Results were compared to national statistics for child homicide from the Department of Justice Uniform Crime Reports (UCR). Weapon was defined as knife or gun for the study. Weapons were used by one of four women in our study. Guns were used by 13% of filicidal women and knives by 12%. Odds ratio showed that psychotic women were eleven times more likely to kill their child with a weapon than their non-psychotic counterparts (11.2; p = .008). Psychosis was present in every mother who killed her child with a knife and in seven of eight women who killed their children with a gun. Younger children were less likely to be killed with weapons (ANCOVA; F = 8.28; p = .006). This finding was independent of presence or absence of maternal psychosis. These results show that psychotic women are more likely than non-psychotic women to kill their children with weapons. They also show that mothers are more likely to use weapons to kill older children than younger children.

  16. 50 CFR 27.43 - Weapons other than firearms.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 6 2010-10-01 2010-10-01 false Weapons other than firearms. 27.43 Section 27.43 Wildlife and Fisheries UNITED STATES FISH AND WILDLIFE SERVICE, DEPARTMENT OF THE INTERIOR... Weapons other than firearms. The use or possession of cross bows, bows and arrows, air guns, spears, gigs...

  17. Nuclear Weapons--A Suitable Topic for the Classroom?

    Science.gov (United States)

    Eijkelhof, Harrie; And Others

    1984-01-01

    Describes the development and implementation of curriculum materials that discuss nuclear weapons and the evaluation of those materials by administrators, teachers, and students. Also discusses the place of the study of nuclear weapons in the curriculum and aims of the materials. Suggested student activities are included. (JM)

  18. Rethinking the Development of Weapons and Their Impact

    Science.gov (United States)

    Katsioloudis, Petros J.; Jones, Mildred V.

    2011-01-01

    As one reads about the history of humans, he/she sees very early on that humans are naturally "tool users." More specifically, humans used tools as a means of subsistence and survival. Even today humans use tools to extend their capabilities beyond imagination. These tools are even used as weapons. However primitive, these early weapons would soon…

  19. A tri-objective, dynamic weapon assignment model for surface ...

    African Journals Online (AJOL)

    In this paper, a tri-objective, dynamic weapon assignment model is proposed by modelling the weapon assignment problem as a multi-objective variation of the celebrated vehicle routing problem with time windows. A multi-objective, evolutionary metaheuristic for solving the vehicle routing problem with time windows is ...

  20. A tri-objective, dynamic weapon assignment model for surface ...

    African Journals Online (AJOL)

    2015-05-11

    May 11, 2015 ... Mateo (CA). [12] Hosein PA & Athans M, 1989, The dynamic weapon-target assignment problem, (Unpublished). Technical Report, Massachusetts Institute of Technology, Cambridge (MA). [13] Huaiping C, Jingxu L, Yingwu C & Hao W, 2006, Survey of the research on dynamic weapon-target assignment ...

  1. Willingness to pay for defense against weapons of mass destruction.

    Science.gov (United States)

    Mulvaney, J M; LaBarre, D; Pastel, R; Landauer, M

    2001-12-01

    A survey assessed the willingness to pay for defense against weapons of mass destruction. The results were evaluated according to the benefit to society. The results indicated preferences for increased spending on intelligence gathering, training, and equipment. We concluded that the United States is spending less for weapons of mass destruction defense than the sample population was willing to pay.

  2. A GERMAN DISCUSSION OF ATOMIC WEAPONS AND THE LAW,

    Science.gov (United States)

    of the relationship between atomic weapons and the law has been discussed in the German press. On May 18, 1957, a letter to the editor was published...in Frankfurter Allgemeine Zeitung uder the heading ’Atomic Weapons and the Law ’. The letter is reproduced in translation. Although it furnishes only

  3. Rapid Estimation of Building Damage by Conventional Weapons

    Science.gov (United States)

    2014-09-01

    graphical form (After [4]). Figure 6 is “generated by Dr. Jane Dewey back in the 1960s where she conducted experiments at the Army Ballistic Research...Preliminary Design. New York: John Wiley & Sons, 2002. [3] M. R. Driels, Weaponeering: Conventional Weapon System Effectiveness. Reston, Virginia

  4. BLDC technology and its application in weapon system launching ...

    African Journals Online (AJOL)

    Due to inherent properties of BLDC Technology BLDC Motors and Drives are profoundly used in military and strategic weapon system applications. In this paper, BLDC Motor and Electromechanical Servo Drive System, operating principle, modeling, characteristics and its application in various weapon system programs are ...

  5. A multiobjective approach towards weapon assignment in a ground ...

    African Journals Online (AJOL)

    The conditions under which human operators have to propose assignments of weapon systems to engage these aircraft are severely stressful since time is a critical factor and there is no room for error. Some progress has already been made with respect to the design of computerised threat evaluation and weapon ...

  6. Proposals for chemical weapons during the American Civil War.

    Science.gov (United States)

    Hasegawa, Guy R

    2008-05-01

    Proposals for chemical weapons that arose during the American Civil War are described. Most incendiary and all biological agents are excluded. The described proposals appeared primarily in periodicals or letters to government officials on both sides. The weapons were usually meant to temporarily disable enemy combatants, but some might have been lethal, and Civil War caregivers were ill-prepared to deal with the weapons' effects. Evidently, none of the proposed weapons were used. In only one instance was use against civilians mentioned. Among the agents most commonly proposed were cayenne pepper or other plant-based irritants such as black pepper, snuff, mustard, and veratria. Other suggested agents included chloroform, chlorine, hydrogen cyanide, arsenic compounds, sulfur, and acids. Proponents usually suggested that the chemicals be included in explosive artillery projectiles. Less commonly proposed vehicles of delivery included fire engines, kites, and manned balloons. Some of the proposed weapons have modern counterparts.

  7. Detachment Faulting in the Western Basin and Range: New Geometric, Thermal, and Temporal Constraints From the Bare Mountain Region in Southwestern Nevada

    Science.gov (United States)

    Ferrill, D. A.; Stamatakos, J. A.; Morris, A. P.; Donelick, R. A.; Blythe, A. E.

    2001-12-01

    Zircon and apatite fission-track cooling ages for 50 samples taken from Bare Mountain and surrounding areas of southern Nevada, analyzed in conjunction with structural and paleomagnetic data and calcite deformation geothermometry data, provide new constraints on the timing and distribution of detachment faulting in the western Basin and Range. Our results show that: (i) Bare Mountain was tilted to the east or northeast, probably during Middle Miocene extension, prior to development of the Bullfrog Hills detachment system. (ii) Bare Mountain cooled through the fission-track closure temperature for fluorine-rich apatite (115-125 C) more or less as a unit at 8 to 17 Ma. (iii) Northwest Bare Mountain cooled through the zircon closure temperature (250 C) at 8 to 17 Ma, whereas the rest of the mountain cooled through this temperature between the Late Paleozoic and the Eocene. The combination of tilting at Bare Mountain and the apatite and zircon fission-track cooling ages indicates the presence of a west-dipping breakaway fault at Bare Mountain at around 15 Ma. New apatite fission-track cooling ages from Yucca Flat, Frenchman Flat, Mount Sterling, the Striped Hills, the Resting Springs Range, and the Funeral Mountains, when combined with published apatite ages, constrain the regional position of a west-dipping breakaway fault and exhumed footwall. The current position of the trailing edge of the hanging wall of this system is the Death Valley - Furnace Creek fault system. Migration rates of the cooling front in the footwall of this system range from 4.0 mm/yr at the latitude of Bare Mountain to 7.3 mm/yr at the latitude of central Death Valley. * Work performed at the CNWRA for the U.S. NRC under contract number NRC-02-97-009. This is an independent product of the CNWRA and does not necessarily reflect the views or regulatory position of the NRC.

  8. Weapons Retrieved After the Implementation of Emergency Department Metal Detection.

    Science.gov (United States)

    Malka, S Terez; Chisholm, Robin; Doehring, Marla; Chisholm, Carey

    2015-09-01

    Several high-profile violent incidents have occurred within emergency departments (EDs). There are no recent studies reporting the effectiveness of ED metal detection. Our aim was to assess the effect of metal detection on ED weapons retrieval. In September 2011, a metal detector was installed at the entrance of an urban, high-volume teaching hospital ED. The security company recorded retrieved firearms, knives, chemical sprays, and other weapons. We performed qualitative analysis of weapons retrieval data for a 26-month period. A total of 5877 weapons were retrieved, an average of 218 per month: 268 firearms, 4842 knives, 512 chemical sprays, and 275 other weapons, such as brass knuckles, stun guns, and box cutters. The number of retrieved guns decreased from 2012 to 2013 (from 182 to 47), despite an increase in metal detection hours from 8 h per day to 16 h per day. The number of retrieved knives, chemical sprays, and other weapons increased. Recovered knives increased from 2062 in 2012 to 2222 in 2013, chemical sprays increased from 170 to 305, and other weapons increased from 51 to 201. A large number of weapons were retrieved after the initiation of metal detection in the ED entrance. Increasing hours of metal detection increased the number of retrieved knives, chemical sprays, and other weapons. Retrieved firearms decreased after increasing metal detection hours. Metal detection in the ED entrance is effective in reducing entrance of weapons into the ED. Metal detectors may offer additional benefit in reducing attempts to enter with firearms. Copyright © 2015 Elsevier Inc. All rights reserved.

  9. 76 FR 6087 - Draft Weapons Safety Assessment on the Use of Enhanced Weapons; Notice of Availability and...

    Science.gov (United States)

    2011-02-03

    ... public, licensees, certificate holders, and other stakeholders on a draft guidance document entitled ``Weapons Safety Assessment'' (WSA). This guidance would be used by licensees and certificate holders... the use for enhanced weapons. The Commission is authorized under Section 161A of the Atomic Energy Act...

  10. Nuclear weapons issues in South Asia

    Energy Technology Data Exchange (ETDEWEB)

    Joeck, N.

    1993-07-02

    This report discusses how the US can play a productive mediating role in South Asia by engaging India and Pakistan in an international forum to manage nuclear weapons, as Edward Teller advocated. India and Pakistan have developed their nuclear capabilities because they fear their neighbors, not because they want to threaten fear their neighbors, not because they want to threaten the US. The appropriate response for the US, therefore, is diplomatic engagement and negotiations. In addition to the international approach, encouragement and facilitation of regional and bilateral interactions will also be important. Formal arms control agreements have been reached, but less formal confidence-building measures, and unilateral security pledges may well be combined to form a more secure strategic environment in South Asia than a nuclear armed confrontation across the porous South Asian border.

  11. Radiological Weapons: How Great Is The Danger?

    Energy Technology Data Exchange (ETDEWEB)

    Moore, G M

    2003-06-01

    One of the underlying purposes of this paper is to provoke thinking about the interplay between the regulation of radioactive materials and the risk of their use in an radiological weapon (RW). Also considered in this paper are the types of RWs that a terrorist might use, the nature of the threat and danger posed by the various types of RWs, the essential elements that must be considered in responding to the terrorist use of an RW, and what steps may need to be taken a priori to minimize the consequences of the inevitable use of an RW. Because radiological dispersal devices (RDDs) have been the focus of so much recent concern and because RDDs are arguably the most likely of RWs to be used by a terrorist group, a major focus of this paper will be on RDDs. Radiological weapons are going to be used by some individual or group, if not this year then next year, or at some time in the foreseeable future. A policy of focusing resources solely on prevention of their use would leave any government open to significant economic disruption when the inevitable use occurs. Preplanning can limit the injuries, property damage, and economic losses that might result from the use of an RW. Moreover, a combination of efforts to prevent and to minimize the impact of RWs may significantly discourage potential users. The dangers from RWs can be dealt with while society continues to enjoy the benefits of nuclear technology that were promised under Atoms for Peace. However, some restructuring of our use of radioactive materials is necessary to ensure that the current and future uses of radioactive materials outweigh the potential disruption caused by misuse of the materials in RWs.

  12. Plutonium in the marine environment at Thule, NW-Greenland after a nuclear weapons accident

    DEFF Research Database (Denmark)

    Dahlgaard, H.; Eriksson, M.; Ilus, E.

    2001-01-01

    In January 1968, a B52 plane carrying 4 nuclear weapon!: crashed on the sea ice similar to 12 km from the Thule Air Base, in northwest Greenland. The benthic marine environment in the 180-230 m deep Bylot Sound was then contaminated with similar to1.4 TBq Pu-239,Pu-240 (similar to0.5 kg). The site...... than in sediments. Some biota groups show a somewhat higher uptake of americium than of plutonium. Sediment samples with weapons plutonium from the accident show a significant variation in Pu-240/Pu-239 atom ratios in the range 0.027-0.057. This supports the hypothesis that the Thule plutonium...

  13. Symbolic representations of weapons and preparations for conflict: The nuclear arms race

    Energy Technology Data Exchange (ETDEWEB)

    Bassin, E.L.

    1991-01-01

    This study investigates the process through which actors acquire weapons in preparation for a confrontation with some rival. A theory is developed to account for those preparations rooted in two social psychological perspectives; social exchange theory and symbolic interactionism. The empirical aspect of the study deals with the nuclear arms race between the US and Soviet Union. The first portion involves a qualitative analysis to uncover the meaning system. The second portion involves a quantitative test of the theory. Data cover all 53 long range strategic missile systems ever deployed by the US or USSR. Results lend support for the idea of a meaning-based theory of preparation for conflict. By operationalizing weapons as actors perceive the objects in their environment, the results of this study provide a higher level of fit than found in earlier arms race research.

  14. North Korea's nuclear weapons development. Implications for future policy

    Energy Technology Data Exchange (ETDEWEB)

    Pollack, J.D.

    2010-07-01

    commitments to denuclearization. In January 2003, the DPRK withdrew from the NPT, making it the only state ever to do so, and in February 2005 it declared that it possessed nuclear weapons. It attempted long-range missile launches in July 2006 and April 2009, conducted nuclear tests in October 2006 and May 2009, and since late 2008 has claimed status as a nuclear weapons state outside the NPT. The shortcomings and outright failures in nuclear diplomacy with the DPRK have a long lineage. Under the Agreed Framework of October 1994, the Clinton Administration bought time by freezing North Korea's plutonium production capabilities, but a comprehensive resolution of controversies that triggered the first nuclear crisis was deferred indefinitely. The Bush Administration was openly contemptuous of the arrangements negotiated under its predecessor and walked away from the Agreed Framework, but it lacked a credible fallback plan when Pyongyang resumed its plutonium-based activities. Some senior Bush Administration officials, moreover, were convinced that North Korea would wilt under pressure or even collapse outright, but the DPRK defied such expectations, and moved quickly toward an avowed weapons capability. The DPRK's long pursuit of strategic autonomy, however, remains at the center of this story, and starkly contradicts the North's claims that it is intent on a non-nuclear future. North Korea signed various agreements that, at least in theory, invalidated pursuit of nuclear weapons. These agreements included Pyongyang's assent to basic non-proliferation documents; an inter-Korean accord that entered into force in 1992; bilateral agreements with the United States; and multilateral declarations negotiated at the Six-Party Talks in Beijing in 2005 and 2007. But negotiated agreements failed to eliminate the North Korea's pursuit of the technologies and expertise necessary for a weapons program. By walking away from these agreements, Pyongyang compelled

  15. Wartime nuclear weapons research in Germany and Japan.

    Science.gov (United States)

    Grunden, Walter E; Walker, Mark; Yamnazaki, Masakatsu

    2005-01-01

    This article compares military research projects during the Second World War to develop nuclear weapons in Germany and Japan, two countries who lost the war and failed to create nuclear weapons. The performance and motivations of the scientists, as well as the institutional support given the work, is examined, explaining why, in each case, the project went as far as it did-but no further. The story is carried over into the postwar period, when the two cultures and their scientists had to deal with the buildup of nuclear weapons during the cold war and the new nuclear power industry.

  16. Your Career and Nuclear Weapons: A Guide for Young Scientists and Engineers.

    Science.gov (United States)

    Albrecht, Andreas; And Others

    This four-part booklet examines various issues related to nuclear weapons and how they will affect an individual working as a scientist or engineer. It provides information about the history of nuclear weapons, about the weapons industry which produces them, and about new weapons programs. Issues are raised so that new or future graduates may make…

  17. 75 FR 68671 - Continuation of Emergency With Respect to Weapons of Mass Destruction

    Science.gov (United States)

    2010-11-08

    ... Notice of November 4, 2010--Continuation of Emergency With Respect to Weapons of Mass Destruction #0; #0... Continuation of Emergency With Respect to Weapons of Mass Destruction On November 14, 1994, by Executive Order... of nuclear, biological, and chemical weapons (weapons of mass destruction) and the means of...

  18. 77 FR 66513 - Continuation of the National Emergency With Respect to Weapons of Mass Destruction

    Science.gov (United States)

    2012-11-05

    ... (weapons of mass destruction) and the means of delivering such weapons. On July 28, 1998, the President... threat of weapons of mass destruction proliferation activities. On June 28, 2005, the President issued... combat proliferation. The proliferation of weapons of mass destruction and the means of delivering them...

  19. 3 CFR - Continuation of Emergency With Respect to Weapons of Mass Destruction

    Science.gov (United States)

    2010-01-01

    ... Continuation of Emergency With Respect to Weapons of Mass Destruction On November 14, 1994, by Executive Order... of nuclear, biological, and chemical weapons (weapons of mass destruction) and the means of... Order 12938 to respond more effectively to the worldwide threat of weapons of mass destruction...

  20. 78 FR 55326 - Determinations Regarding Use of Chemical Weapons in Syria Under the Chemical and Biological...

    Science.gov (United States)

    2013-09-10

    ... Determinations Regarding Use of Chemical Weapons in Syria Under the Chemical and Biological Weapons Control and... to Section 306(a) of the Chemical and Biological Weapons Control and Warfare Elimination Act of 1991, 22 U.S.C. 5604(a), that the Government of Syria has used chemical weapons in violation of...

  1. Petrology, geochemistry and thermobarometry of the northern area of the Flamenco pluton, Coastal Range batholith, northern Chile. A thermal approach to the emplacement processes in the Jurassic andean batholiths

    Science.gov (United States)

    Rodríguez, Natalia; Díaz-Alvarado, Juan; Rodríguez, Carmen; Riveros, Karl; Fuentes, Paulina

    2016-04-01

    The Flamenco pluton is part of a N-S alignment of Late Triassic to Early Jurassic intrusive belt comprising the westernmost part of the Coastal Range batholith in northern Chile. The Jurassic-Cretaceous voluminous magmatism related to subduction in the western active continental margin of Gondwana is emplaced in the predominantly metasedimentary Paleozoic host-rocks of the Las Tórtolas formation, which in the northern area of the Flamenco pluton present an intense deformation, including the Chañaral mélange. Geochemically, the Flamenco pluton shows a wide compositional variability (SiO2 between 48wt % and 67wt %). Gabbros, Qtz-diorites and tonalites, mesocratic and leucocratic granodiorites are classified as calc-alkaline, calcic, magnesian and metaluminous magmatism. Flamenco granitoids define cotectic linear evolution trends, typical of magmatic fractionation processes. Geochemical trends are consistent with magmas evolved from undersaturated and low-pressure melts, even though the absence of transitional contacts between intrusive units precludes in-situ fractionation. Although some granodioritic samples show crossed geochemical trends that point to the compositional field of metasediments, and large euhedral prismatic pinnite-biotite crystals, typical Crd pseudomorph, are observed in contact magmatic facies, geochemical assimilation processes are short range, and the occurrence of host-rocks xenoliths is limited to a few meters from the pluton contact. A thermal approach to the emplacement process has been constrained through the thermobarometric results and a 2D thermo-numerical model of the contact aureole. Some Qtz-diorites and granodiorites located in the north area of the pluton exhibit granulitic textures as Hbl-Pl-Qtz triple junctions, poikiloblastic Kfs and Qtz recrystallization. The Hbl-Pl pairs have been used for the thermobarometric study of this metamorphic process, resulting granoblastic equilibrium temperatures between 770 and 790 °C, whereas

  2. Excess Weapons Plutonium Immobilization in Russia

    Energy Technology Data Exchange (ETDEWEB)

    Jardine, L.; Borisov, G.B.

    2000-04-15

    The joint goal of the Russian work is to establish a full-scale plutonium immobilization facility at a Russian industrial site by 2005. To achieve this requires that the necessary engineering and technical basis be developed in these Russian projects and the needed Russian approvals be obtained to conduct industrial-scale immobilization of plutonium-containing materials at a Russian industrial site by the 2005 date. This meeting and future work will provide the basis for joint decisions. Supporting R&D projects are being carried out at Russian Institutes that directly support the technical needs of Russian industrial sites to immobilize plutonium-containing materials. Special R&D on plutonium materials is also being carried out to support excess weapons disposition in Russia and the US, including nonproliferation studies of plutonium recovery from immobilization forms and accelerated radiation damage studies of the US-specified plutonium ceramic for immobilizing plutonium. This intriguing and extraordinary cooperation on certain aspects of the weapons plutonium problem is now progressing well and much work with plutonium has been completed in the past two years. Because much excellent and unique scientific and engineering technical work has now been completed in Russia in many aspects of plutonium immobilization, this meeting in St. Petersburg was both timely and necessary to summarize, review, and discuss these efforts among those who performed the actual work. The results of this meeting will help the US and Russia jointly define the future direction of the Russian plutonium immobilization program, and make it an even stronger and more integrated Russian program. The two objectives for the meeting were to: (1) Bring together the Russian organizations, experts, and managers performing the work into one place for four days to review and discuss their work with each other; and (2) Publish a meeting summary and a proceedings to compile reports of all the excellent

  3. A Conceptual Framework for Teaching about Nuclear Weapons.

    Science.gov (United States)

    Jacobson, Willard; And Others

    1983-01-01

    Concepts which represent the minimal conceptual essentials for the study of nuclear weapons in secondary level social studies classes are discussed, and issues and controversies which may rise during such a study are examined. (RM)

  4. Perfection and the Bomb: Nuclear Weapons, Teleology, and Motives.

    Science.gov (United States)

    Brummett, Barry

    1989-01-01

    Uses Kenneth Burke's theory of perfection to explore the vocabularies of nuclear weapons in United States public discourse and how "the Bomb" as a God term has gained imbalanced ascendancy in centers of power. (MS)

  5. Model National Implementing Legislation for the Chemical Weapons Convention

    Energy Technology Data Exchange (ETDEWEB)

    Tanzman, E.A. [Argonne National Lab., IL (United States); Kellman, B. [DePaul University, Chicago, IL (United States)

    1997-12-31

    It is an honor to address this distinguished audience. We are grateful to the Republique Gabonaise for hosting this important gathering and to the staff of the Organization for the Prohibition of Chemical Weapons (OPCW) for supporting it. This seminar is another excellent opportunity for all of us to learn from each other about how the Chemical Weapons Convention (CWC) can become a foundation of arms control in Africa and around the world. At this meeting we speak only for ourselves, neither for the government of the United States of America nor for any other institution. This paper discusses model national implementing legislation under the CWC. Every State Party likely must enact implementing legislation - not only the few States Parties that will declare and destroy chemical weapons, but also the many States Parties that have never had a chemical weapons programme.

  6. Can Al Qaeda Be Deterred from Using Nuclear Weapons?

    National Research Council Canada - National Science Library

    Dunn, Lewis A

    2005-01-01

    The use of a nuclear weapon would be the ultimate al Qaeda terrorist outrage. Over the past decade, however, the prevailing assessment of the likelihood of terrorist acquisition and use of nuclear (specifically...

  7. Directed Energy Weapons: De We Have a Game Plan

    National Research Council Canada - National Science Library

    Lincoln, Timothy

    2004-01-01

    .... Today's military performs missions across the spectrum of warfare. In these roles, operators and planners must leverage technology in order to gain an advantage over their enemy and protect their forces. Directed Energy (DE) weapons (DEW...

  8. Los Alamos National Laboratory JOWOG 31 Weapons Engineering Education & Training

    Energy Technology Data Exchange (ETDEWEB)

    Domzalski, Mark W. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-10-03

    The objectives of this report are to recruit talented staff, invest in new and early/mid career staff, retain trained and talented staff and future leaders, and shorten the ~5-10 year time line to realize new Weaponeers.

  9. 76 FR 1136 - Electroshock Weapons Test and Measurement Workshop

    Science.gov (United States)

    2011-01-07

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF COMMERCE National Institute of Standards and Technology Electroshock Weapons Test and Measurement Workshop AGENCY: National Institute of Standards and Technology (NIST), United States Department of Commerce. ACTION: Notice...

  10. High-Speed-/-Hypersonic-Weapon-Development-Tool Integration

    National Research Council Canada - National Science Library

    Duchow, Erin M; Munson, Michael J; Alonge, Jr, Frank A

    2006-01-01

    Multiple tools exist to aid in the design and evaluation of high-speed weapons. This paper documents efforts to integrate several existing tools, including the Integrated Hypersonic Aeromechanics Tool (IHAT)1-7...

  11. Nuclear Weapons Tests and Environmental Consequences: A Global Perspective

    National Research Council Canada - National Science Library

    Prăvălie, Remus

    2014-01-01

    .... The paper aims to analyze nuclear weapons tests conducted in the second half of the twentieth century, highlighting the impact of radioactive pollution on the atmospheric, aquatic, and underground environments...

  12. Evolutionary Trade-off between Weapons and Testes

    National Research Council Canada - National Science Library

    Leigh W. Simmons; Douglas J. Emlen

    2006-01-01

    ...-history traits such as mate acquisition. Here, we use a genus of horned beetle, Onthophagus, to examine the trade-off between investment in testes required for fertilizations and investment in weapons used to obtain matings...

  13. The use of neutron scattering in nuclear weapons research

    Energy Technology Data Exchange (ETDEWEB)

    Juzaitis, R.J. [Los Alamos National Lab., NM (United States)

    1995-10-01

    We had a weapons science breakout session last week. Although it would have been better to hold it closer in time to this workshop, I think that it was very valuable. it may have been less of a {open_quotes}short-sleeve{close_quotes} workshop environment than we would have liked, but as the first time two communities-the weapons community and the neutron scattering community- got together, it was a wonderful opportunity to transfer information during the 24 presentations that were made. This report contains discussions on the fundamental analysis of documentation of the enduring stockpile; LANSCE`s contribution to weapons; spallation is critical to understanding; weapons safety assessments; applied nuclear physics requires cross section information; fission models need refinement; and establishing teams on collaborative projects.

  14. Cargo/Weapons Elevator Land Based Engineering Site

    Data.gov (United States)

    Federal Laboratory Consortium — The Cargo and Weapons Facility consists of a suite of full scale and component test facilities contiguously located in building 77H. The site was constructed in 1987...

  15. Nuclear weapons and outdated U.S. bases in Europe

    National Research Council Canada - National Science Library

    Snyder, Susi

    2010-01-01

    The national roles are different for each of the countries that currently host U.S. nuclear weapons. Belgium, Germany, Italy and the Netherlands each maintain aircraft capable of dropping the B61 bombs stored...

  16. Arms Control: US and International efforts to ban biological weapons

    Energy Technology Data Exchange (ETDEWEB)

    1992-12-01

    The Bacteriological (Biological) and Toxin Weapons Convention, the treaty that bans the development, production, and stockpiling and acquisition of biological weapons was opened for signature in 1972 and came into force in 1975 after being ratified by 22 governments, including the depository nations of the USA, the United Kingdom, and the former Soviet Union. In support of the Convention, the USA later established export controls on items used to make biological weapons. Further, in accordance with the 1990 President`s Enhanced Proliferation Control Initiative, actions were taken to redefine and expand US export controls, as well as to encourage multilateral controls through the Australia Group. Thus far, the Convention has not been effective in stopping the development of biological weapons. The principal findings as to the reasons of the failures of the Convention are found to be: the Convention lacks universality, compliance measures are effective, advantage of verification may outweigh disadvantages. Recommendations for mitigating these failures are outlined in this report.

  17. Planning thermal radiation experiments at high flux. Technical report

    Energy Technology Data Exchange (ETDEWEB)

    Knasel, M.; Houghton, A.J.; Sievers, R.H.; Gordon, B.A.; McDonnell, M.D.

    1981-10-27

    This report covers analyses; experimentation; equipment design and fabrication; instrumentation design, selection, fabrication, and tests; and recording-equipment selection in preparation for high-thermal-flux experiments on soil surfaces. The reported effort is preparatory to a continuing program to obtain empirical data and examine parametric relationships on the response of different surfaces and the formation of an overlying thermal and dust layer resulting from the thermal pulse of a nuclear weapon.

  18. Weapon-Specific Strategic Material Estimation Process (WSSMEP)

    Science.gov (United States)

    2014-12-01

    vec - tors, each of which corresponds to a U.S. weapon. The vector components specify percentages of system purchase price that go to companies in a...release; distribution unlimited. 13. SUPPLEMENTARY NOTES 14. ABSTRACT The Weapon-Specific Strategic Material Estimation Process (WSSMEP) is a modeling ...inputs to WSSMEP are pro- prietary or classified, but the model itself is not. WSSMEP is a modeling tool used to estimate the demand for the strategic

  19. Theater nuclear weapons in Europe the contemporary debate

    OpenAIRE

    Polser, Brian G.

    2004-01-01

    Approved for public release; distribution is unlimited Are U.S. nuclear weapons still needed in Europe now that the threat that brought them there is gone? This thesis examines whether basing theater nuclear weapons in Europe is useful, irrelevant or counterproductive for maintaining European security. U.S. and NATO policymakers adhere to political and military utility arguments, while others argue TNWs in Europe are irrelevant-their utility has been supplanted by political, cultural and e...

  20. Historical fencing and scientific research medieval weapons: common ground

    Directory of Open Access Journals (Sweden)

    B. V. Hrynchyshyn

    2015-07-01

    We considered various approaches to the reconstruction of the historical fencing. It is proved that the activities of such societies has a positive effect on the process research of features of medieval weapons, fighting tactics of different periods The various approaches to the reconstruction of the historical fencing. Proved that the activities of such societies has a positive effect on the process research of features of medieval weapons, fighting tactics of different periods.

  1. North Korea's nuclear weapons program:verification priorities and new challenges.

    Energy Technology Data Exchange (ETDEWEB)

    Moon, Duk-ho (Korean Consulate General in New York)

    2003-12-01

    A comprehensive settlement of the North Korean nuclear issue may involve military, economic, political, and diplomatic components, many of which will require verification to ensure reciprocal implementation. This paper sets out potential verification methodologies that might address a wide range of objectives. The inspection requirements set by the International Atomic Energy Agency form the foundation, first as defined at the time of the Agreed Framework in 1994, and now as modified by the events since revelation of the North Korean uranium enrichment program in October 2002. In addition, refreezing the reprocessing facility and 5 MWe reactor, taking possession of possible weapons components and destroying weaponization capabilities add many new verification tasks. The paper also considers several measures for the short-term freezing of the North's nuclear weapon program during the process of negotiations, should that process be protracted. New inspection technologies and monitoring tools are applicable to North Korean facilities and may offer improved approaches over those envisioned just a few years ago. These are noted, and potential bilateral and regional verification regimes are examined.

  2. Modernizing confidence-building measures for the Biological Weapons Convention.

    Science.gov (United States)

    Koblentz, Gregory D; Chevrier, Marie Isabelle

    2011-09-01

    The Seventh Review Conference of the Biological Weapons Convention in December 2011 provides an opportunity to modernize the treaty to better address the challenges of the 21st century. The key to this modernization is to redesign the treaty's Confidence-Building Measures (CBMs), the only formal mechanism for increasing transparency and demonstrating compliance with the treaty, to address changes in the global scientific, health, and security environments since the end of the Cold War. The scope of the CBMs should be expanded beyond state-run biological warfare programs to encompass a broader array of threats to global security, such as biological terrorism, laboratory accidents, dual-use research, and disease pandemics. Modernizing the CBM mechanism to take into account these new risks would extend the transparency-enhancing benefits of CBMs to a range of new and important topics, such as biosafety, laboratory biosecurity, and dual-use research oversight; make the CBMs and the treaty itself more relevant to the concerns and priorities of more states; and build on progress made during the recent series of intersessional meetings. To accomplish this, the CBMs need to be revised to shift their focus from hardware, the dual-use capabilities relevant to the treaty, to software, the political and legal institutions that govern the development and use of these capabilities. A more modern CBM mechanism should encourage greater participation in the confidence-building process, improve international cooperation against the full spectrum of biological risks, and promote the goal of universal membership in the treaty.

  3. Automated Navigation System based on Weapon-Target Assignment

    Directory of Open Access Journals (Sweden)

    Mohammad Khairudin

    2011-12-01

    Full Text Available Operating of weapon on the tank is mostly by manually. It is not desired performance for a critical operation. An automatic control system is required to operate the weapon with the target while maintaining the accuracy. In this paper has designed an automatic weapon control system using object image proccessing. Various an image processing methods used to improve the weapon accuracy to obtain the intended target. The method used in digital image processing is the Camshift motion tracking method. This method is compared with the Lucas Canade motion tracking method. This comparison is conducted to found more precise results between the two methods. Results of object image processing are used to control the direction of the weapon that towards the desired goal. The results show that the implementation of the Lucas Canade motion tracking method using fire simulation tools have been successful. The performance of the Lucas Canade motion tracking methods is better than the CamShift method. Using Lucas Canade method for weapon controller is accordance with the purposes.

  4. Screening Adolescents in the Emergency Department for Weapon Carriage

    Science.gov (United States)

    Cunningham, Rebecca M.; Resko, Stella M.; Harrison, Stephanie Roahen; Zimmerman, Marc; Stanley, Rachel; Chermack, Stephen T.; Walton, Maureen A.

    2010-01-01

    Objective To describe prevalence and correlates of past year weapon involvement among adolescents seeking care in an inner-city ED. Methods This cross-sectional study administered a computerized survey to all eligible adolescents (age 14–18), seven days a week seeking care in the ED over an 18 month period in an inner-city Level 1 ED. Validated measures were administered including measures of demographics, sexual activity, substance use, injury, violent behavior and weapon carriage/use. Results Adolescents (N=2069, 86% response rate) completed the computerized survey. 55% were female; 56.5% were African American. In the past year, 20% of adolescents reported knife/razor carriage, 7% reported gun carriage, and 6% pulled a knife/gun on someone; zero-inflated Poisson (ZIP) regression models were used to identify correlates of the occurrence and past year frequency of these weapon variables. Although gun carriage was more frequent among males, females were as likely to carry a knife or pull a weapon in the past year. Conclusions One fifth of all adolescent’s seeking care in this inner city ED have carried a weapon. Understanding weapon carriage among teens seeking ED care is a critical first step to future ED based injury prevention initiatives. PMID:20370746

  5. Effects of Weapons on Aggressive Thoughts, Angry Feelings, Hostile Appraisals, and Aggressive Behavior: A Meta-Analytic Review of the Weapons Effect Literature.

    Science.gov (United States)

    Benjamin, Arlin J; Kepes, Sven; Bushman, Brad J

    2017-09-01

    Guns are associated with aggression. A landmark 1967 study showed that simply seeing a gun can increase aggression-called the "weapons effect." This meta-analysis integrates the findings of weapons effect studies conducted from 1967 to 2017. It includes 162 effect-size estimates from 78 independent studies involving 7,668 participants. The theoretical framework used to explain the weapons effect was the General Aggression Model (GAM), which proposes three routes to aggression-cognitive, affective, and arousal. The GAM also proposes that hostile appraisals can facilitate aggression. As predicted by the GAM, the mere presence of weapons increased aggressive thoughts, hostile appraisals, and aggression, suggesting a cognitive route from weapons to aggression. Weapons did not significantly increase angry feelings. Only one study tested the effects of weapons on arousal. These findings also contribute to the debate about social priming by showing that incidental exposure to a stimulus (weapon) can affect subsequent related behavior (aggression).

  6. Sequential Immune Responses: The Weapons of Immunity.

    Science.gov (United States)

    Mills, Charles D; Ley, Klaus; Buchmann, Kurt; Canton, Johnathan

    2015-01-01

    Sequential immune responses (SIR) is a new model that describes what 'immunity' means in higher animals. Existing models, such as self/nonself discrimination or danger, focus on how immune responses are initiated. However, initiation is not protection. SIR describes the actual immune responses that provide protection. SIR resulted from a comprehensive analysis of the evolution of immune systems that revealed that several very different types of host innate responses occur (and at different tempos) which together provide host protection. SIR1 uses rapidly activated enzymes like the NADPH oxidases and is present in all animal cells. SIR2 is mediated by the first 'immune' cells: macrophage-like cells. SIR3 evolved in animals like invertebrates and provides enhanced protection through advanced macrophage recognition and killing of pathogens and through other innate immune cells such as neutrophils. Finally, in vertebrates, macrophages developed SIR4: the ability to present antigens to T cells. Though much slower than SIR1-3, adaptive responses provide a unique new protection for higher vertebrates. Importantly, newer SIR responses were added on top of older, evolutionarily conserved functions to provide 'layers' of host protection. SIR transcends existing models by elucidating the different weapons of immunity that provide host protection in higher animals. © 2015 S. Karger AG, Basel.

  7. The evolution of tail weaponization in amniotes.

    Science.gov (United States)

    Arbour, Victoria M; Zanno, Lindsay E

    2018-01-31

    Weaponry, for the purpose of intraspecific combat or predator defence, is one of the most widespread animal adaptations, yet the selective pressures and constraints governing its phenotypic diversity and skeletal regionalization are not well understood. Here, we investigate the evolution of tail weaponry in amniotes, a rare form of weaponry that nonetheless evolved independently among a broad spectrum of life including mammals, turtles and dinosaurs. Using phylogenetic comparative methods, we test for links between morphology, ecology and behaviour in extant amniotes known to use the tail as a weapon, and in extinct taxa bearing osseous tail armaments. We find robust ecological and morphological correlates of both tail lashing behaviour and bony tail weaponry, including large body size, body armour and herbivory, suggesting these life-history parameters factor into the evolution of antipredator behaviours and tail armaments. We suggest that the evolution of tail weaponry is rare because large, armoured herbivores are uncommon in extant terrestrial faunas, as they have been throughout evolutionary history. © 2018 The Author(s).

  8. Finally, proof of weapons of mass destruction.

    Science.gov (United States)

    Baldwin, Ian T

    2003-10-07

    Allelopathy (one species' use of chemicals to harm other species) may be a key ingredient in successful invasions of alien plants into established communities. Bais et al. show that in response to elicitation by common soil fungi, spotted knapweed (Centaurea maculosa) launches an ineffective defense against the fungi that results in extensive collateral damage to neighboring plants. Specifically, the flavonoid (-)-catechin, released from the roots of knapweed, produces a massive reactive oxygen species (ROS)-mediated oxidative burst, Ca2+ signaling, and rapid cell death in those unadapted native species whose habitats the plant regularly invades. The roots release both (+) and (-) enantiomers, but only the (-) enantiomer functions as a weapon of mass destruction; the (+) enantiomer inhibits the growth of numerous common soil-borne bacterial pathogens. Eliciting apoptotic response for a competitive advantage is an example of signal cross-talk between the genomes of interacting organisms and highlights how the internal signaling of one organism can be used by others to adjust their phenotypes in an adaptive manner. The study provides strong circumstantial evidence for an allelopathic interaction, but the genetic manipulation of (-)-catechin release would allow researchers to determine if these responses occur in nature. Precise genetic control over the release of secondary metabolites from plants would benefit ecological research.

  9. Detection of weapons of mass destruction

    Science.gov (United States)

    Bjorkholm, Paul J.

    2003-07-01

    High Energy X-ray cargo screening is a mature technology that has proven its value in the detection of contraband material hidden within cargo including fully loaded sea containers. To date high energy screening has been largely applied to manifest verification and to drug detection. However, the dramatic change in world terrorism has altered the application. Now it is essential that weapons of mass destruction (WMD"s) be interdicted with incredibly high accuracy. The implication of a missed detection has gone from loss of revenue or the lowering of the street price of drugs to potentially stopping, at least for some significant time, most world commerce. Screening containers with high energy x-rays (~250+ mm of steel penetration) is capable of detecting all nuclear threats at a fraction of the strategically important mass. The screening operation can be automated so that no human decisions are required with very low false alarms. Finally, the goal of 100% inspection of cargo inbound to the United States from the twenty largest international ports is an achievable goal with hardware costs in the area of that already spent on airport security.

  10. Sequential Immune Responses: The Weapons of Immunity

    Science.gov (United States)

    Mills, Charles D.; Ley, Klaus; Buchmann, Kurt; Canton, Johnathan

    2016-01-01

    Sequential immune responses (SIR) is a new model that describes what ‘immunity’ means in higher animals. Existing models, such as self/nonself discrimination or danger, focus on how immune responses are initiated. However, initiation is not protection. SIR describes the actual immune responses that provide protection. SIR resulted from a comprehensive analysis of the evolution of immune systems that revealed that several very different types of host innate responses occur (and at different tempos) which together provide host protection. SIR1 uses rapidly activated enzymes like the NADPH oxidases and is present in all animal cells. SIR2 is mediated by the first ‘immune’ cells: macrophage-like cells. SIR3 evolved in animals like invertebrates and provides enhanced protection through advanced macrophage recognition and killing of pathogens and through other innate immune cells such as neutrophils. Finally, in vertebrates, macrophages developed SIR4: the ability to present antigens to T cells. Though much slower than SIR1–3, adaptive responses provide a unique new protection for higher vertebrates. Importantly, newer SIR responses were added on top of older, evolutionarily conserved functions to provide ‘layers’ of host protection. SIR transcends existing models by elucidating the different weapons of immunity that provide host protection in higher animals. PMID:25871013

  11. Introduction to Pits and Weapons Systems (U)

    Energy Technology Data Exchange (ETDEWEB)

    Kautz, D. [Los Alamos National Laboratory

    2012-07-02

    A Nuclear Explosive Package includes the Primary, Secondary, Radiation Case and related components. This is the part of the weapon that produces nuclear yield and it converts mechanical energy into nuclear energy. The pit is composed of materials that allow mechanical energy to be converted to electromagnetic energy. Fabrication processes used are typical of any metal fabrication facility: casting, forming, machining and welding. Some of the materials used in pits include: Plutonium, Uranium, Stainless Steel, Beryllium, Titanium, and Aluminum. Gloveboxes are used for three reasons: (1) Protect workers and public from easily transported, finely divided plutonium oxides - (a) Plutonium is very reactive and produces very fine particulate oxides, (b) While not the 'Most dangerous material in the world' of Manhattan Project lore, plutonium is hazardous to health of workers if not properly controlled; (2) Protect plutonium from reactive materials - (a) Plutonium is extremely reactive at ambient conditions with several components found in air: oxygen, water, hydrogen, (b) As with most reactive metals, reactions with these materials may be violent and difficult to control, (c) As with most fabricated metal products, corrosion may significantly affect the mechanical, chemical, and physical properties of the product; and (3) Provide shielding from radioactive decay products: {alpha}, {gamma}, and {eta} are commonly associated with plutonium decay, as well as highly radioactive materials such as {sup 241}Am and {sup 238}Pu.

  12. Optical countermeasures against CLOS weapon systems

    Science.gov (United States)

    Toet, Alexander; Benoist, Koen W.; van Lingen, Joost N. J.; Schleijpen, H. Ric M. A.

    2013-10-01

    There are many weapon systems in which a human operator acquires a target, tracks it and designates it. Optical countermeasures against this type of systems deny the operator the possibility to fulfill this visual task. We describe the different effects that result from stimulation of the human visual system with high intensity (visible) light, and the associated potential operational impact. Of practical use are flash blindness, where an intense flash of light produces a temporary "blind-spot" in (part of) the visual field, flicker distraction, where strong intensity and/or color changes at a discomfortable frequency are produced, and disability glare where a source of light leads to contrast reduction. Hence there are three possibilities to disrupt the visual task of an operator with optical countermeasures such as flares or lasers or a combination of these; namely, by an intense flash of light, by an annoying light flicker or by a glare source. A variety of flares for this purpose is now available or under development: high intensity flash flares, continuous burning flares or strobe flares which have an oscillating intensity. The use of flare arrays seems particularly promising as an optical countermeasure. Lasers are particularly suited to interfere with human vision, because they can easily be varied in intensity, color and size, but they have to be directed at the (human) target, and issues like pointing and eye-safety have to be taken into account. Here we discuss the design issues and the operational impact of optical countermeasures against human operators.

  13. Weapons of Mass Destruction and the Principle of Unnecessary Suffering : The Use of Nuclear Weapons in an Armed Conflict

    OpenAIRE

    Krasny, Jaroslav; Kawano, Noriyuki

    2015-01-01

    This research is concerned with the use of nuclear weapons against combatants in an armed conflict and whether such a use violates or would violate the principle of unnecessary suffering as codified in St. Petersburg Declaration of 1868 and the Hague Conventions. In order to analyze what constitutes unnecessary suffering the method chosen for this research is comparison of the effects of nuclear, chemical and biological weapons on the human body. The reason for choosing this method is the abh...

  14. Terror weapons. Ridding the world of nuclear, biological and chemical weapons - Commission on mass destruction weapons; Armes de terreur. Debarrasser le monde des armes nucleaires, biologiques et chimiques - Commission sur les armes de destruction massive

    Energy Technology Data Exchange (ETDEWEB)

    Blix, H.; Journe, V.

    2010-07-01

    This book approaches in 8 chapters the ambitious challenge of ridding the world of all mass destruction weapons: 1 - re-launching disarmament; 2 - terror weapons: nature of threats and answers (weakness of traditional answers, counter-proliferation); 3 - nuclear weapons: preventing proliferation and terrorism, reducing threat and nuclear weapons number, from regulation to banning); 4 - biological or toxin weapons; 5 - chemical weapons; 6 - vectors, anti-missile defenses and space weapons; 7 - exports control, international assistance and non-governmental actors; 8 - respect, verification, enforcement and role of the United Nations. The recommendations and works of the Commission are presented in appendix together with the declaration adopted on April 30, 2009. (J.S.)

  15. [Penetration depth of missiles fired from a pneumatic weapon with kinetic energy below 17 J, in 20% gelatine blocks as correlated with injuries found during autopsy of a 9-year-old boy].

    Science.gov (United States)

    Smedra-Kaźmirska, Anna; Barzdo, Maciej; Kedzierski, Maciej; Szram, Stefan; Berent, Jarosław

    2011-01-01

    In Poland, according to the Act About Weapons and Ammunition, an air weapon which has kinetic energy of the fired projectiles below 17 J does not require registration and can be bought even on the Internet. Sport and recreation shooting with this weapon basically have to be performed in shooting ranges, but can be also carried on outside of shooting ranges, providing "particular caution" is exercised. In this study, we presented a case of fatal shooting of a 9-year-old boy; the weapon was a Chinese pneumatic device weapon with kinetic energy of the fired projectiles below 17 J. The aim of this study was to compare autopsy findings with penetration depth of missiles fired from this pneumatic weapon in 20% gelatine blocks. During the experiment, we used a Chinese pneumatic weapon with kinetic energy below 17 J, five kinds of lead projectiles with different shape and mass and 20% gelatine blocks at the temperature of 10 degrees C, which were the model of human soft tissues.

  16. Why are U.S. nuclear weapon modernization efforts controversial?

    Science.gov (United States)

    Acton, James

    2016-03-01

    U.S. nuclear weapon modernization programs are focused on extending the lives of existing warheads and developing new delivery vehicles to replace ageing bombers, intercontinental ballistic missiles, and ballistic missile submarines. These efforts are contested and controversial. Some critics argue that they are largely unnecessary, financially wasteful and potentially destabilizing. Other critics posit that they do not go far enough and that nuclear weapons with new military capabilities are required. At its core, this debate centers on three strategic questions. First, what roles should nuclear weapons be assigned? Second, what military capabilities do nuclear weapons need to fulfill these roles? Third, how severe are the unintended escalation risks associated with particular systems? Proponents of scaled-down modernization efforts generally argue for reducing the role of nuclear weapons but also that, even under existing policy, new military capabilities are not required. They also tend to stress the escalation risks of new--and even some existing--capabilities. Proponents of enhanced modernization efforts tend to advocate for a more expansive role for nuclear weapons in national security strategy. They also often argue that nuclear deterrence would be enhanced by lower yield weapons and/or so called bunker busters able to destroy more deeply buried targets. The debate is further fueled by technical disagreements over many aspects of ongoing and proposed modernization efforts. Some of these disagreements--such as the need for warhead life extension programs and their necessary scope--are essentially impossible to resolve at the unclassified level. By contrast, unclassified analysis can help elucidate--though not answer--other questions, such as the potential value of bunker busters.

  17. Superconducting RF Linacs Driving Subcritical Reactors for Profitable Disposition of Surplus Weapons-grade Plutonium

    Science.gov (United States)

    Cummings, Mary Anne; Johnson, Rolland

    Acceptable capital and operating costs of high-power proton accelerators suitable for profitable commercial electric-power and process-heat applications have been demonstrated. However, studies have pointed out that even a few hundred trips of an accelerator lasting a few seconds would lead to unacceptable thermal stresses as each trip causes fission to be turned off in solid fuel structures found in conventional reactors. The newest designs based on the GEM*STAR concept take such trips in stride by using molten-salt fuel, where fuel pin fatigue is not an issue. Other aspects of the GEM*STAR concept which address all historical reactor failures include an internal spallation neutron target and high temperature molten salt fuel with continuous purging of volatile radioactive fission products such that the reactor contains less than a critical mass and almost a million times fewer volatile radioactive fission products than conventional reactors. GEM*STAR is a reactor that without redesign will burn spent nuclear fuel, natural uranium, thorium, or surplus weapons material. It will operate without the need for a critical core, fuel enrichment, or reprocessing making it an excellent candidate for export. As a first application, the design for a pilot plant is described for the profitable disposition of surplus weapons-grade plutonium by using process heat to produce green diesel fuel for the Department of Defense (DOD) from natural gas and renewable carbon.

  18. Nuclear obligations: Nuremberg law, nuclear weapons, and protest

    Energy Technology Data Exchange (ETDEWEB)

    Burroughs, J.R.

    1991-01-01

    Nuclear weapons use and deployment and nonviolent anti-nuclear protests are evaluated. Use of nuclear weapons would constitute war crimes and crimes against humanity as defined in both the Nuremberg Charter and Allied Control Council Law No. 10 and applied by the International Military Tribunal and other Nuremberg courts. Strategic and atomic bombing during World War 2 did not set a precedent for use of nuclear weapons. The consequentialist argument for World War 2 bombing fails and the bombing has also been repudiated by codification of the law of war in Protocol 1 to the 1949 Geneva Conventions. The legality of deploying nuclear weapons as instruments of geopolitical policy is questionable when measured against the Nuremberg proscription of planning and preparation of aggressive war, war crimes, and crimes against humanity and the United Nations Charter's proscription of aggressive threat of force. While states' practice of deploying the weapons and the arms-control treaties that regulate but do not prohibit mere possession provide some support for legality, those treaties recognize the imperative of preventing nuclear war, and the Nuclear Non-Proliferation Treaty commits nuclear-armed states to good-faith negotiation of nuclear disarmament.

  19. Chemical and biological weapons in the 'new wars'.

    Science.gov (United States)

    Ilchmann, Kai; Revill, James

    2014-09-01

    The strategic use of disease and poison in warfare has been subject to a longstanding and cross-cultural taboo that condemns the hostile exploitation of poisons and disease as the act of a pariah. In short, biological and chemical weapons are simply not fair game. The normative opprobrium is, however, not fixed, but context dependent and, as a social phenomenon, remains subject to erosion by social (or more specifically, antisocial) actors. The cross cultural understanding that fighting with poisons and disease is reprehensible, that they are taboo, is codified through a web of interconnected measures, principal amongst these are the 1925 Geneva Protocol; the Biological Weapons Convention; and the Chemical Weapons Convention. Whilst these treaties have weathered the storm of international events reasonably well, their continued health is premised on their being 'tended to' in the face of contextual changes, particularly facing changes in science and technology, as well as the changed nature and character of conflict. This article looks at the potential for normative erosion of the norm against chemical and biological weapons in the face of these contextual changes and the creeping legitimization of chemical and biological weapons.

  20. Strategic Bombers and Conventional Weapons: Airpower Options,

    Science.gov (United States)

    1984-01-01

    his career had ex- perience with B-52 conventional bombing, mine-laying, and sea surveillance. His assignments ranged from Europe to the Pacific, in...range (150 fmiles ) air-to-surface missile to complement the range of the B- I B radar’s targeting ability; such a capacity is vital for oper- A ating in

  1. Defense Acquisitions: Assessments of Selected Weapon Programs

    Science.gov (United States)

    2017-03-01

    67 low-rate production vehicles. The program official also stated that the SPH’s current steel cannon tube will be replaced with a chrome- plated ...four unique technologies required development—a dual pulse solid rocket motor, thermal batteries, an ignition safety device, and insensitive munitions...Recommended actions included, returning to a "Blue/ Gold " crew rotation model; merging the seaframe and mission package crew into a single

  2. Cooling of weapons with graphite foam

    Science.gov (United States)

    Klett, James W.; Trammell, Michael P.

    2016-12-27

    Disclosed are examples of an apparatus for cooling a barrel 12 of a firearm 10 and examples of a cooled barrel assembly 32 for installation into an existing firearm 10. When assembled with the barrel 12, a contact surface 16 of a shell 14 is proximate to, and in thermal communication with, the outer surface of the barrel 18. The shell 14 is formed of commercially available or modified graphite foam.

  3. A Thermote, a Novel Thermal Element Simplifying the Finding of a Medium's Entropy Emerges as a Sensible Dark Matter Candidate from Primordial Black Holes with a Mass in Range of Axion's, a Leading Candidate

    Science.gov (United States)

    Feria, Erlan H.

    2017-06-01

    Black holes acting as dark matter have been predicted, e.g., via a duality theory in (Feria 2011, Proc. IEEE Int’l Conf. on SMC, Alaska, USA) and via observations in (Kashlinsky 2016, AJL). Here a thermote, a novel thermal element simplifying the finding of a medium’s entropy, emerges as a dark matter candidate from primordial black holes with a mass in range of axion's, a leading candidate. The thermote energy, eT, is defined as the average thermal energy contributed to a particle’s motion by the medium’s degrees of freedom (DoF) and is thus given by eT=NDoFkBT/2 where NDoF is the DoF number (e.g., NDoF=2 for a black-hole since only in its event-horizon particle motions can occur) and kBT/2 is the thermal energy contributed by each degree of freedom (kB is the Boltzmann constant and T is temperature). The entropy S of a spherical homogeneous medium is then simply stated as S=(kB/2)E/eT where E=Mc2 is the medium's rest-energy, with M its point-mass and c the speed of light, and eT=NDoFkBT/2 is the thermote's kinetic-energy. This simple equation naturally surfaced from a rest/kinetic or retention/motion mass-energy duality theory where, e.g., black-holes and vacuums form together such a duality with black holes offering the least resistance to mass-energy rest, or retention, and vacuums offering the least resistance to mass-energy kinetics, or motions. In turn, this duality theory has roots in the universal cybernetics duality principle (UCDP) stating “synergistic physical and mathematical dualities arise in efficient system designs” (Feria 2014, http://dx.doi.org/10.1117/2.1201407.005429, SPIE Newsroom). Our thermote based entropy finding method is applicable to spherical homogeneous mediums such as black-holes, photon-gases, and flexible-phase (Feria 2016, Proc. IEEE Int’l Conf. on Smart Cloud, Columbia University, NY, USA), where the thermote of a primordial black hole, with NDoF=2 and a CMB radiation temperature of T=2.725 kelvin, emerges as a

  4. Hazards of chemical weapons release during war: new perspectives.

    Science.gov (United States)

    Reutter, S

    1999-01-01

    The two major threat classes of chemical weapons are mustard gas and the nerve agents, and this has not changed in over 50 years. Both types are commonly called gases, but they are actually liquids that are not remarkably volatile. These agents were designed specifically to harm people by any route of exposure and to be effective at low doses. Mustard gas was used in World War I, and the nerve agents were developed shortly before, during, and after World War II. Our perception of the potency of chemical weapons has changed, as well as our concern over potential effects of prolonged exposures to low doses and potential target populations that include women and children. Many of the toxicologic studies and human toxicity estimates for both mustard and nerve agents were designed for the purpose of quickly developing maximal casualties in the least sensitive male soldier. The "toxicity" of the chemical weapons has not changed, but our perception of "toxicity" has. PMID:10585902

  5. Public perspectives of nuclear weapons in the post-cold war environment

    Energy Technology Data Exchange (ETDEWEB)

    Jenkins-Smith, H.C.; Herron, K.G. [Univ. of New Mexico, Albuquerque, NM (United States). Institute for Public Policy; Barke, R.P. [Georgia Institute of Technology, Atlanta, GA (United States). School of Public Policy

    1994-04-01

    This report summarizes the findings of a nationwide survey of public perceptions of nuclear weapons in the post-cold war environment. Participants included 1,301 members of the general public, 1,155 randomly selected members of the Union of Concerned Scientists, and 1,226 employees randomly selected from the technical staffs of four DOE national laboratories. A majority of respondents from all three samples perceived the post-cold war security environment to pose increased likelihood of nuclear war, nuclear proliferation, and nuclear terrorism. Public perceptions of nuclear weapons threats, risks, utilities, and benefits were found to systematically affect nuclear weapons policy preferences in predictable ways. Highly significant relationships were also found between public trust and nuclear weapons policy preferences. As public trust and official government information about nuclear weapons increased, perceptions of nuclear weapons management risks decreased and perceptions of nuclear weapons utilities and benefits increased. A majority of respondents favored decreasing funding for: (1) developing and testing new nuclear weapons; (2) maintaining existing nuclear weapons, and (3) maintaining the ability to develop and improve nuclear weapons. Substantial support was found among all three groups for increasing funding for: (1) enhancing nuclear weapons safety; (2) training nuclear weapons personnel; (3) preventing nuclear proliferation; and (4) preventing nuclear terrorism. Most respondents considered nuclear weapons to be a persistent feature of the post-cold war security environment.

  6. Conducted electrical weapon (TASER) use against minors: a shocking analysis.

    Science.gov (United States)

    Gardner, Alison R; Hauda, William E; Bozeman, William P

    2012-09-01

    Conducted electrical weapons (CEWs) such as the TASER are often used by law enforcement (LE) personnel during suspect apprehension. Previous studies have reported an excellent safety profile and few adverse outcomes with CEW use in adults. We analyzed the safety and injury profile of CEWs when used during LE apprehension of children and adolescents, a potentially vulnerable population. Consecutive CEW uses by LE officers against criminal suspects were tracked at 10 LE agencies and entered into a database as part of an ongoing multicenter injury surveillance program. All CEW uses against minors younger than 18 years were retrieved for analysis. Primary outcomes included the incidence and type of mild, moderate, and severe CEW-related injury, as assessed by physician reviewers in each case. Ultimate outcomes, suspect demographics, and circumstances surrounding LE involvement are reported secondarily. Of 2026 consecutive CEW uses, 100 (4.9%) were uses against minor suspects. Suspects ranged from 13 to 17 years, with a mean age of 16.1 (SD, 0.99) years (median, 16 years). There were no significant (moderate or severe) injuries reported (0%; 97.5% confidence interval, 0.0%-3.6%). Twenty suspects (20%; 95% confidence interval, 12.7%-29.1%) were noted to sustain 34 mild injuries. The majority of these injuries (67.6%) were expected superficial punctures from CEW probes. Other mild injuries included superficial abrasions and contusions in 7 cases (7%). None of the minor suspects studied sustained significant injury, and only 20% reported minor injuries, mostly from the expected probe puncture sites. These data suggest that adolescents are not at a substantially higher risk than adults for serious injuries after CEW use.

  7. Netherlands Army Long Range Anti Armour Study - Status Report

    NARCIS (Netherlands)

    Schagen, P.A.B. van

    1989-01-01

    At the end of the nineties the munition for the TOW weapon system in use at The Netherlands army, has to be replaced. The Life of Type of The Tow carrier ends in 2005. The long range anti armour study is to gain insight into the possibilities and limitations for the Netherlands army to deploy future

  8. Compounding for the effects of weapons of mass destruction.

    Science.gov (United States)

    Sammarco, Lt Col Domenic A

    2003-01-01

    As incidents of terrorism become more common, pharmacists, and medical professionals must plan for a possible domestic terrorist attack involving biologic, chemical, or nuclear weapons. For the United States to be truly prepared, federal, state, and local agencies must have the knowledge, intelligence, training, and supplies to counter this realistic threat of the twenty-first century. Terrorists often use chemical, biologic, or limited nuclear warfare in which weapons are easier to produce, smaller in size, and have a profound psychologic and physical impact.

  9. Chemical and biological weapons: new questions, new answers.

    Science.gov (United States)

    Hood, E

    1999-01-01

    The words "chemical and biological weapons" (CBW) send a shiver down most spines these days. With the end of the Cold War, the possibility of a massive nuclear confrontation appears remote, so today many popular doomsday scenarios center on the aggressive use of chemical or biological warfare by rogue nations or terrorist groups. As exaggerated as some of the accounts are, with CBW cast as the latest unseen, unstoppable enemy, the threat posed by these weapons is all too real, and growing. Images p931-a PMID:10585899

  10. Environmental Impact Analysis Process. Draft Environmental Impact Statement, Winnersville Weapons Range, Lanier and Lowndes Counties, Georgia

    Science.gov (United States)

    1985-07-01

    e.g., gum-cypress swamp) to occasionally ground-soaked stands of runner oak, myrtle, gallberry, huckleberry, saw - palmetto , and wiregrass. Approximately...shrub, and forested swamp 3806 acres 65% Cultivated or open land 120 acres 2% Total 5856 acres The pine forests are managed for saw timber on an 80-year...loss associated with aging. Permanent hearing loss is generally associated with destruction of the hair cells of the inner ear. Based on EPA criteria

  11. Environmental Statement on the Tactical Fighter Weapons Center (TFWC) Range Complex, Nellis Air Force Base

    Science.gov (United States)

    1977-03-10

    Regulus calendula cineaceus Ruby-crowned Kinglet 197. Anthus spinoietta rubescens Water Pipit 198. Bombycilla cedrorum Cedar Waxwing 199. Phainopela nitens...velifer White River Speckled Dace 13. Moapa coriacea* ** Moapa Dace 14. Cyprinus carpio Asian Carp 15. Lepidomeda mollispinus pratensis Big Spring

  12. Proposed Restricted Area and Military Operation Area (MOA) Poinsett Weapons Range

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Your letter of July 13, 1993 requested information on threatened, endangered, or candidate animal species and other wildlife resources in the Military Operation Area...

  13. Vulnerability of populations and the urban health care systems to nuclear weapon attack – examples from four American cities

    Science.gov (United States)

    Bell, William C; Dallas, Cham E

    2007-01-01

    Background The threat posed by the use of weapons of mass destruction (WMD) within the United States has grown significantly in recent years, focusing attention on the medical and public health disaster capabilities of the nation in a large scale crisis. While the hundreds of thousands or millions of casualties resulting from a nuclear weapon would, in and of itself, overwhelm our current medical response capabilities, the response dilemma is further exacerbated in that these resources themselves would be significantly at risk. There are many limitations on the resources needed for mass casualty management, such as access to sufficient hospital beds including specialized beds for burn victims, respiration and supportive therapy, pharmaceutical intervention, and mass decontamination. Results The effects of 20 kiloton and 550 kiloton nuclear detonations on high priority target cities are presented for New York City, Chicago, Washington D.C. and Atlanta. Thermal, blast and radiation effects are described, and affected populations are calculated using 2000 block level census data. Weapons of 100 Kts and up are primarily incendiary or radiation weapons, able to cause burns and start fires at distances greater than they can significantly damage buildings, and to poison populations through radiation injuries well downwind in the case of surface detonations. With weapons below 100 Kts, blast effects tend to be stronger than primary thermal effects from surface bursts. From the point of view of medical casualty treatment and administrative response, there is an ominous pattern where these fatalities and casualties geographically fall in relation to the location of hospital and administrative facilities. It is demonstrated that a staggering number of the main hospitals, trauma centers, and other medical assets are likely to be in the fatality plume, rendering them essentially inoperable in a crisis. Conclusion Among the consequences of this outcome would be the probable loss

  14. Vulnerability of populations and the urban health care systems to nuclear weapon attack – examples from four American cities

    Directory of Open Access Journals (Sweden)

    Dallas Cham E

    2007-02-01

    Full Text Available Abstract Background The threat posed by the use of weapons of mass destruction (WMD within the United States has grown significantly in recent years, focusing attention on the medical and public health disaster capabilities of the nation in a large scale crisis. While the hundreds of thousands or millions of casualties resulting from a nuclear weapon would, in and of itself, overwhelm our current medical response capabilities, the response dilemma is further exacerbated in that these resources themselves would be significantly at risk. There are many limitations on the resources needed for mass casualty management, such as access to sufficient hospital beds including specialized beds for burn victims, respiration and supportive therapy, pharmaceutical intervention, and mass decontamination. Results The effects of 20 kiloton and 550 kiloton nuclear detonations on high priority target cities are presented for New York City, Chicago, Washington D.C. and Atlanta. Thermal, blast and radiation effects are described, and affected populations are calculated using 2000 block level census data. Weapons of 100 Kts and up are primarily incendiary or radiation weapons, able to cause burns and start fires at distances greater than they can significantly damage buildings, and to poison populations through radiation injuries well downwind in the case of surface detonations. With weapons below 100 Kts, blast effects tend to be stronger than primary thermal effects from surface bursts. From the point of view of medical casualty treatment and administrative response, there is an ominous pattern where these fatalities and casualties geographically fall in relation to the location of hospital and administrative facilities. It is demonstrated that a staggering number of the main hospitals, trauma centers, and other medical assets are likely to be in the fatality plume, rendering them essentially inoperable in a crisis. Conclusion Among the consequences of this

  15. New Weapons Provide Alternative for Marines Dealing with Non-Combatants

    National Research Council Canada - National Science Library

    Bortz, Jason

    1998-01-01

    Non-lethal weapons, such as acoustic and directed energy weapons, can provide Marines with an alternative way to deal with noncombatants in a way that can reduce injuries and fatalities on both sides...

  16. Combating Terrorism: Need to Eliminate Duplicate Federal Weapons of Mass Destruction Training

    National Research Council Canada - National Science Library

    2000-01-01

    Concerned that weapons of mass destruction (WMD) are increasingly available to terrorists, Congress passed the Defense Against Weapons of Mass Destruction Act of 1996, commonly known as the Nunn-Lugar-Domenici Act...

  17. 48 CFR 225.7005 - Restriction on certain chemical weapons antidote.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Restriction on certain chemical weapons antidote. 225.7005 Section 225.7005 Federal Acquisition Regulations System DEFENSE... on certain chemical weapons antidote. ...

  18. Autonomous Weapons: Are You Sure These Are Killer Robots? Can We Talk About It?

    National Research Council Canada - National Science Library

    Shane R Reeves; William J Johnson

    2014-01-01

    ... and disproportionate use of force" in warfare.12 Holding these moral and legal arguments as unassailable truths, these anti-autonomous weapon advocates are vehemently working to prevent any possible future with autonomous robot weapons...

  19. Thermal Clothing

    Science.gov (United States)

    1997-01-01

    Gateway Technologies, Inc. is marketing and developing textile insulation technology originally developed by Triangle Research and Development Corporation. The enhanced thermal insulation stems from Small Business Innovation Research contracts from NASA's Johnson Space Center and the U.S. Air Force. The effectiveness of the insulation comes from the microencapsulated phase-change materials originally made to keep astronauts gloved hands warm. The applications for the product range from outer wear, housing insulation, and blankets to protective firefighting gear and scuba diving suits. Gateway has developed and begun marketing thermal regulating products under the trademark, OUTLAST. Products made from OUTLAST are already on the market, including boot and shoe liners, winter headgear, hats and caps for hunting and other outdoor sports, and a variety of men's and women's ski gloves.

  20. Weapons Effects in Urban Operations in Support of Combatant Commanders: Requirements for Testing, Analysis, Modeling and Simulation

    National Research Council Canada - National Science Library

    Moxley, Rayment E; Cargile, James D; Windham, Jon; Coates, Randolph S; Fordyce, Dave; Mermagen, Bill, Jr

    2004-01-01

    .... The complexity of waging a war has increased exponentially among the three primary variables in understanding weapon effects, the weapons, the environment, and the combatant commander s objective...

  1. Nuclear Weapons and Coercive Escalation in Regional Conflicts: Lessons from North Korea and Pakistan

    Science.gov (United States)

    2014-11-01

    Daniel S. Geller . “Nuclear Weapons, Deterrence and Crisis Escalation.” Journal of Conflict Resolution 34 (1990). 17 “Nuclear Weapons, Deterrence... Geller , “Nuclear Weapons, Deterrence and Crisis Escalation,” 1990. 21 Beardsley and Asal, “Winning with the Bomb,” 2009. 22 Utgoff and Wheeler...After Proliferation: Deterrence Theory and Emerging Nuclear Powers,” 2012, 18. 25 Geller , “Nuclear Weapons, Deterrence and Crisis Escalation,” 1990

  2. Fraying at the seams? Chemical and biological weapons on the margins

    OpenAIRE

    Revill, James

    2016-01-01

    The Chemical and biological weapons (CBW) regime, through the 1972 Biological and Toxin Weapons Convention and the and the 1993 Chemical Weapons Convention, appears to have established sound definitions for what constitutes a biological and chemical weapon which clearly delineate permitted from prohibited forms of violence. Moreover, for the large part of the history of these Conventions such definitions have served the international community well. However, at the peripheries of these agreem...

  3. 32 CFR 552.123 - Storage of personal weapons other than firearms or handguns.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 3 2010-07-01 2010-07-01 true Storage of personal weapons other than firearms... weapons other than firearms or handguns. Privately owned weapons, such as knives, swords, air guns, BB... commander, in a location other than the unit arms room. ...

  4. 33 CFR 334.930 - Anaheim Bay Harbor, Calif.; Naval Weapons Station, Seal Beach.

    Science.gov (United States)

    2010-07-01

    ... Weapons Station, Seal Beach. 334.930 Section 334.930 Navigation and Navigable Waters CORPS OF ENGINEERS... Bay Harbor, Calif.; Naval Weapons Station, Seal Beach. (a) The restricted area. The water of Anaheim Bay Harbor between the east and west jetties at the United States Naval Weapons Station, Seal Beach...

  5. Radiological Weapons Control: A Soviet and US Perspective. Occasional Paper 29.

    Science.gov (United States)

    Issraelyan, Victor L.; Flowerree, Charles C.

    Two international diplomats from the Soviet Union and the United States focus on the need for a treaty to ban the use of radiological weapons. Radiological weapons are those based on the natural decay of nuclear material such as waste from military or civilian nuclear reactors. Such devices include both weapons and equipment, other than a nuclear…

  6. The Impact of Economic Factors and Acquisition Reforms on the Cost of Defense Weapon Systems

    Science.gov (United States)

    2006-03-01

    occurred in the 1990’s affect the cost of defense weapon systems? 2. Is war correlated with an increase in weapon system cost overruns? 3. Is estimation error...2. Is war correlated with an increase in weapon system cost overruns? 3. Is estimation error caused by unexpected inflation correlated with an

  7. Report to the DOE nuclear data committee. [EV RANGE 10-100; CROSS SECTIONS; PHOTONEUTRONS; NEUTRONS; GAMMA RADIATION; COUPLED CHANNEL THEORY; DIFFERENTIAL CROSS SECTIONS; MEV RANGE 01-10; ; CAPTURE; GAMMA SPECTRA; THERMAL NEUTRONS; COMPUTER CALCULATIONS; DECAY; FISSION PRODUCTS; FISSION YIELD; SHELL MODELS; NUCLEAR DATA COLLECTIONS

    Energy Technology Data Exchange (ETDEWEB)

    Struble, G.L.; Haight, R.C.

    1981-03-01

    Topics covered include: studies of (n, charged particle) reactions with 14 to 15 MeV neutrons; photoneutron cross sections for /sup 15/N; neutron radiative capture; Lane-model analysis of (p,p) and (n,n) scattering on the even tin isotopes; neutron scattering cross sections for /sup 181/Ta, /sup 197/Au, /sup 209/Bi, /sup 232/Th, and /sup 238/U inferred from proton scattering and charge exchange cross sections; neutron-induced fission cross sections of /sup 245/Cm and /sup 242/Am; fission neutron multiplicities for /sup 245/Cm and /sup 242/Am; the transport of 14 MeV neutrons through heavy materials 150 < A < 208; /sup 249/Cm energy levels from measurement of thermal neutron capture gamma rays; /sup 231/Th energy levels from neutron capture gamma ray and conversion electron spectroscopy; new measurements of conversion electron binding energies in berkelium and californium; nuclear level densities; relative importance of statistical vs. valence neutron capture in the mass-90 region; determination of properties of short-lived fission products; fission yield of /sup 87/Br and /sup 137/I from 15 nuclei ranging from /sup 232/Th to /sup 249/Cf; evaluation of charged particle data for the ECPL library; evaluation of secondary charged-particle energy and angular distributions for ENDL; and evaluated nuclear structure libraries derived from the table of isotopes. (GHT)

  8. Small Arms - Hand and Shoulder Weapons and Machine Guns

    Science.gov (United States)

    2016-06-24

    Compatibility ( EMC ) ......................................................... 79 4.20.5 Parts Interchange...sure that this person uses a face shield , protective vest/clothing, heavy gloves, and ear protection. A physical barrier should also be employed to... shield the person firing from as much direct exposure to the test weapon as practical. d. All cook off tests are conducted at a fixed ambient

  9. A multiobjective approach towards weapon assignment in a ground ...

    African Journals Online (AJOL)

    solved in the context of a simulated, but realistic, GBAD environment by means of an existing multiobjective solution technique called the Nondominated Sorting Genetic Algorithm II. Key words: Multicriteria decision making, threat evaluation and weapon assignment, NSGA II. ∗Corresponding author: Department of Logistics ...

  10. North Korea, Nuclear Weapons, and No Good Options?

    DEFF Research Database (Denmark)

    Cohen, Michael David

    2013-01-01

    How would Pyongyang’s development of the capability to target the United States with nuclear weapons influence North Korea’s foreign policy? I argue that it would cause more dangerous crises than those of the last decade, and predict that these crises would eventually cause Kim Jong Un and his...

  11. Changing Our Ways of Thinking: Health Professionals and Nuclear Weapons.

    Science.gov (United States)

    Neal, Mary

    1984-01-01

    Outlines the issues raised by health professionals concerned about the threat of nuclear weapons and nuclear war, including epidemics, civil defense, arms costs, psychosocial aspects, and ethical responsibility. Appendixes include lists of antinuclear organizations, medical professional associations, and 160 references. (SK)

  12. Nuclear Energy, Nuclear Weapons Proliferation, and the Arms Race.

    Science.gov (United States)

    Hollander, Jack, Ed.

    A symposium was organized to reexamine the realities of vertical proliferation between the United States and the Soviet Union and to place into perspective the horizontal proliferation of nuclear weapons throughout the world, including the possible role of commercial nuclear power in facilitating proliferation. The four invited symposium…

  13. Nuclear Weapons and Communication Studies: A Review Essay.

    Science.gov (United States)

    Taylor, Bryan C.

    1998-01-01

    Reviews the body of work inspired by the late Cold War period, where nuclear weapons briefly became a compelling object for communication scholars. Considers the prospects for nuclear communication scholarship in post-Cold War culture. Discusses "nuclear criticism" and issues regarding the bomb in communication. (SC)

  14. Nuclear Weapons and the Future: An "Unthinkable" Proposal.

    Science.gov (United States)

    Tyler, Robert L.

    1982-01-01

    The author looks ahead 30 or 40 years to see what might come of the nuclear weapons predicament. As a minimal first step in the campaign against nuclear warfare, he suggests a unilateral and complete disarmament by the United States. (AM)

  15. Psychology and Nuclear Weapon Issues: Topics, Concepts, and Bibliography.

    Science.gov (United States)

    Nelson, Linden, Comp.

    The document outlines 15 topics, each with concepts and selected references, to illustrate the relevance of psychology for understanding and coping with the threat of nuclear war. Awareness of the literature is intended to encourage psychologists to become more active in applying psychological concepts to nuclear weapons issues. The articles and…

  16. applying reinforcement learning to the weapon assignment problem

    African Journals Online (AJOL)

    ismith

    World, General Rupert Smith concludes that modern warfare will call for information .... making entity will attempt to destruct or decompose a problem until the sub- ..... 2009. 10 Paradis, S, Benaskeur, A, Oxenham, M & Cutler, P. “Threat evaluation and weapons allocation in network-centric warfare”. In: 2005 7th International.

  17. 43 CFR 423.30 - Weapons, firearms, explosives, and fireworks.

    Science.gov (United States)

    2010-10-01

    ... fireworks. 423.30 Section 423.30 Public Lands: Interior Regulations Relating to Public Lands BUREAU OF... WATERBODIES Rules of Conduct § 423.30 Weapons, firearms, explosives, and fireworks. (a) You may possess... with applicable Federal, State, and local law. (c) You must not use or possess explosives, or fireworks...

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

    African Journals Online (AJOL)

    The US is actively pursuing an RMA, conceptualised as integrating new IT into weapons systems and integrated command, control, computers, intelligence, surveillance and reconnaissance (C4ISR) and, in turn, doctrinal, operational and organisational change in the military to take advantage of information dominance on ...

  19. Proceedings of the Tungsten Workshop for Hard Target Weapons Program

    Energy Technology Data Exchange (ETDEWEB)

    Mackiewicz-Ludtka, G.; Hayden, H.W.; Davis, R.M.

    1995-06-01

    The purpose of this meeting was to review and exchange information and provide technical input for improving technologies relevant to the Hard Target Weapons Program. This workshop was attended by representatives from 17 organizations, including 4 Department of Defense (DoD) agencies, 8 industrial companies, and 5 laboratories within DOE. Hard targets are defined as reinforced underground structures that house enemy forces, weapon systems, and support equipment. DOE-ORO and Martin Marietta Energy Systems, Inc. (Energy Systems) have been involved in advanced materials research and development (R&D) for several DOE and DoD programs. These programs are conducted in close collaboration with Eglin AFB, Department of the Army`s Picatinny Arsenal, and other DoD agencies. As part of this ongoing collaboration, Eglin AFB and Oak Ridge National Laboratory planned and conducted this workshop to support the Hard Target Weapons Program. The objectives of this workshop were to (1) review and identify the technology base that exists (primarily due to anti-armor applications) and assess the applicability of this technology to the Hard Target Weapons Program requirements; (2) determine future directions to establish the W materials, processing, and manufacturing technologies suitable for use in fixed, hard target penetrators; and (3) identify and prioritize the potential areas for technical collaboration among the participants.

  20. Autonomous Weapon Systems and Risk Management in Hybrid Networks

    DEFF Research Database (Denmark)

    Nørgaard, Katrine

    hand, governments and military services hope to develop game-changing technologies, that are ‘better, faster and cheaper’. In this paper, I wish to show how different and competing regimes of justification shape the technopolitical controversy and risk management of autonomous weapon systems...

  1. the international politics of nuclear weapons: a constructivist analysis

    African Journals Online (AJOL)

    JK

    ... with the assistance of the IAEA, it has transferred nuclear material, fuel and equipment from the Czech Republic, Romania, Serbia,. Montenegro, Bulgaria, Uzbekistan and Latvia to Russia (IAEA, 2005c:1). Einstein's warning: non-state actors and nuclear weapons. In a letter to Sigmund Freud in 1932, Albert Einstein wrote:.

  2. Joseph A. Burton Forum Award: Some Nuclear Weapons Dilemmas

    Science.gov (United States)

    May, Michael

    2014-03-01

    Nuclear weapons pose a combination of political and ethical dilemmas the solution to which has not been found. On one hand, in the view of both US government leaders and US allies, nuclear deterrence continues to play an essential part in the US role as the ultimate source of military strength for the alliances among the major democratic countries. It also continues to be in demand by countries that believe themselves to be isolated and threatened. On the other hand, nuclear weapons, besides being effective deterrents, can cause unprecedented loss of life and risk the demise of civilizations. No ban or technical precaution could prevent the rebuilding of nuclear weapons in a crisis. No diplomatic arrangement to date has erased the threat of invasion and war in the world. Only the abandonment of war and the threat of war as instruments of policy can make nuclear weapons obsolete. The slow, halting, risky road to that end remains the only hope for a world in which lasting solutions to the nuclear dilemmas are possible.

  3. Mitigation and propagation of sound generated by heavy weapons

    NARCIS (Netherlands)

    Berg, F. van den; Eerden, F.J.M. van der

    2011-01-01

    Much environmental research is performed on predicting the noise impact of heavy weapons or explosives, as the shock waves can propagate over large distances. In the densely populated area of the Netherlands this is of particular interest for the Ministry of Defense. In one research program the

  4. Basic and applied research at the Weapons Neutron Research facility

    Energy Technology Data Exchange (ETDEWEB)

    Gavron, A.

    1994-06-01

    The Weapons Neutron Research facility (WNR), is an intense, high energy spallation source, driven by the LAMPF 800 MeV proton linac. We describe some of the basic and applied research projects which are currently being worked on at this facility.

  5. The GT-MHR for destruction of weapons plutonium

    Energy Technology Data Exchange (ETDEWEB)

    Baxter, A.M.; Neylan, A.J. [General Atomics, San Diego, CA (United States)

    1995-12-31

    The disposal of nearly 100 tonnes of weapons-grade plutonium (WG-Pu) made surplus by the disarmament treaties is receiving urgent attention, highlighted by the recent seizure in Germany of small quantities of weapons-useful plutonium. Unlike highly enriched uranium, simple denaturing cannot make this plutonium worthless for use in future weapons. The use of physical security and institutional barriers, including long-term storage in high-level waste repositories, to provide secure storage for centuries to come is questionable when considering government instability and the possibility of national recidivism. The Russian Ministry for Atomic Energy (MINATOM) and General Atomics have signed an agreement for the cooperative design of a gas turbine-modular helium reactor (GT-MHR) to burn the WG-Pu stockpile. A formal proposal for a joint U.S./Russian program for the development of this reactor has been submitted by MINATOM to Vice President Gore. The major benefit of this program is that the reactor would deplete the Russian surplus plutonium stockpile, provide jobs for technical specialists in the former weapons complex, and produce valuable electric power. It would also provide a mutually assured means of destroying the U.S. and Russian stockpiles.

  6. Joint Sustainment of Weapon Systems. Would We Be Better Off?

    National Research Council Canada - National Science Library

    Hall, Richard A

    2006-01-01

    .... As depots within the military begin to implement new procedures based on the Lean Six Sigma model, a proposed consolidation of efforts based on major weapon systems could lead to improved cost benefits and decreased maintenance time. Tied with the current Joint Depot Maintenance Program, Lean Six Sigma can continue to improve the Service's depot performance.

  7. the international politics of nuclear weapons: a constructivist analysis

    African Journals Online (AJOL)

    JK

    proliferation efforts, nuclear weapons continue to dominate international relations as is evident in the nuclear .... (since 1960) and China (since 1964) have successfully tested nuclear devices. The impact of uncontrolled ..... October 2005, MI5 released a document, Companies and Organisations of. Proliferation Concern ...

  8. Autonomous Weapon Systems and Risk Management in Hybrid Networks

    DEFF Research Database (Denmark)

    Nørgaard, Katrine

    In recent years, the development of autonomous weapon systems and so-called ‘killer robots’, has caused a number of serious legal and ethical concerns in the international community, including questions of compliance with International Humanitarian Law and the Laws of Armed Conflict. On the other...

  9. Is (-)-Catechin a "Novel Weapon" of Spotted Knapweed (Centaurea stoebe)?

    Science.gov (United States)

    The “novel weapons” hypothesis states that some invasive weed species owe part of their success as invaders to allelopathy mediated by allelochemicals that are new to the native species. Presumably, no resistance has evolved among the native species to this new allelochemical (i.e. the novel weapon...

  10. Chlorine Gas: An Evolving Hazardous Material Threat and Unconventional Weapon

    OpenAIRE

    Jones, Robert MD; Wills, Brandon DO; Kang, Christopher MD

    2010-01-01

    Chlorine gas represents a hazardous material threat from industrial accidents and as a terrorist weapon. This review will summarize recent events involving chlorine disasters and its use by terrorists, discuss pre-hospital considerations and suggest strategies for the initial management for acute chlorine exposure events. [West J Emerg Med. 2010; 11(2):151-156.

  11. Chlorine Gas: An Evolving Hazardous Material Threat and Unconventional Weapon

    Directory of Open Access Journals (Sweden)

    Jones, Robert MD

    2010-05-01

    Full Text Available Chlorine gas represents a hazardous material threat from industrial accidents and as a terrorist weapon. This review will summarize recent events involving chlorine disasters and its use by terrorists, discuss pre-hospital considerations and suggest strategies for the initial management for acute chlorine exposure events. [West J Emerg Med. 2010; 11(2:151-156.

  12. Cardiac fibrillation risks with TASER conducted electrical weapons.

    Science.gov (United States)

    Panescu, Dorin; Kroll, Mark; Brave, Michael

    2015-01-01

    The TASER(®) conducted electrical weapon (CEW) delivers electrical pulses that can temporarily incapacitate subjects. We analyzed the cardiac fibrillation risk with TASER CEWs. Our risk model accounted for realistic body mass index distributions, used a new model of effects of partial or oblique dart penetration and used recent epidemiological CEW statics.

  13. The bioscience revolution & the biological weapons threat: levers & interventions

    Science.gov (United States)

    D'Agostino, Mark; Martin, Greg

    2009-01-01

    In December 2008, the US Commission on the Prevention of Weapons of Mass Destruction Proliferation and Terrorism, released a report, World At Risk. The Report points to the fact that, not only is the use of a weapon of mass destruction in a terrorist attack before the end of 2013, more likely than not, but also to the fact that terrorists are more likely to be able to obtain and use biological weapons than nuclear. This paper examines the recommendations of the report in the context of the historic and geopolitical changes, in particular globalization. The authors highlight the "dual-use" dilemma, as described in the report, as the paradoxical use of technology developed for the benefit of mankind being used for sinister purposes. The mitigation of such a threat lies in broad stakeholder involvement and cooperation, including non-state actors, governments and the bio-tech industry itself. The importance of vigilance measures within the life science community is emphasized and, the authors propose, could include a web-based didactic course in bioterrorism and weapons of mass destruction identification. The site could outline safety protocols, have detailed disaster management tutorials, and could be specifically tailored for different subsets of industry and health professionals. The paper concludes with an endorsement of a multi-pronged approach including strong international guidelines and intelligence cooperation and preparatory measures such as the wide-spread use of detection systems as well as diagnostic decision support systems for bioterrorism detection at the local level. PMID:19220910

  14. The role of nuclear weapons in the year 2000

    Energy Technology Data Exchange (ETDEWEB)

    1990-01-01

    This publication presents the proceedings for the workshop, The Role of Nuclear Weapons in the Year 2000, held on October 22--24, 1990. The workshop participants considered the changing nature of deterrence and of our strategic relationship with the Soviet Union, the impact of nuclear proliferation on regional conflicts, and ways that the nuclear forces might be restructured to reflect new political circumstances.

  15. Modern weapons and military equipment for issue 1/2014

    Directory of Open Access Journals (Sweden)

    Nikola M. Ostojić

    2014-02-01

    Full Text Available Unmanned air transport mules from IsraelSensor monitoring of land areaSatellite telescope Moiraorbital weapons "cosmic dome"Automat for frogmen from TulaHeckler & Koch HK XM25, smart grenade launcher

  16. Threat evaluation and weapon assignment decision support: A ...

    African Journals Online (AJOL)

    In a military environment an operator is typically required to evaluate the tactical situation in real-time and protect defended assets against enemy threats by assigning available weapon systems to engage enemy craft. This environment requires rapid operational planning and decision making under severe stress conditions ...

  17. Seventy Years of Computing in the Nuclear Weapons Program

    Energy Technology Data Exchange (ETDEWEB)

    Archer, Billy Joe [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-05-30

    Los Alamos has continuously been on the forefront of scientific computing since it helped found the field. This talk will explore the rich history of computing in the Los Alamos weapons program. The current status of computing will be discussed, as will the expectations for the near future.

  18. Surplus weapons-grade plutonium: a resource for exploring and terraforming Mars

    Energy Technology Data Exchange (ETDEWEB)

    Muscatello, A.C.; Houts, M.G.

    1996-12-31

    With the end of the Cold War, greater than 100 metric tons (MT) of weapons-grade plutonium (WGPu) have become surplus to defense needs in the United States and the Former Soviet Union. This paper is a proposal for an option for WGPu disposition, i.e., use of the plutonium as a fuel for nuclear reactors for Mars exploration and eventual terraforming. WGPu was used in nuclear weapons because it has a much smaller critical mass than highly enriched uranium, allowing lighter weapons with consequent longer ranges. Similarly, WGPu reactors would also require smaller amounts of fuel to attain a critical mass, making the reactor much lighter overall and resulting in large savings in launch costs. The greater than 100 MT of WGPu would generate about 1000 billion kilowatt hours of heat energy, much of which could be converted into electricity. The waste heat would also be useful to a Martian outpost or colony. A potential way of getting the WGPu reactors into space is a large gas gun like that being developed at the Lawrence Livermore National Laboratory to orbit materials by achieving high velocity at the surface, greatly reducing launch costs and enhancing reliability. Reactor components would be launched on conventional rockets or space shuttles, the reactor fuel rods would be injected into orbit using the gas gun, and the reactor would be assembled in space. Implementation of this proposal would allow disposition of a serious, expensive problem on earth by removing the WGPu from the planet and simultaneously provide a very large energy resource for Mars exploration and terraforming.

  19. Quantum Thermal Transistor.

    Science.gov (United States)

    Joulain, Karl; Drevillon, Jérémie; Ezzahri, Younès; Ordonez-Miranda, Jose

    2016-05-20

    We demonstrate that a thermal transistor can be made up with a quantum system of three interacting subsystems, coupled to a thermal reservoir each. This thermal transistor is analogous to an electronic bipolar one with the ability to control the thermal currents at the collector and at the emitter with the imposed thermal current at the base. This is achieved by determining the heat fluxes by means of the strong-coupling formalism. For the case of three interacting spins, in which one of them is coupled to the other two, that are not directly coupled, it is shown that high amplification can be obtained in a wide range of energy parameters and temperatures. The proposed quantum transistor could, in principle, be used to develop devices such as a thermal modulator and a thermal amplifier in nanosystems.

  20. Measurement techniques for the verification of excess weapons materials

    Energy Technology Data Exchange (ETDEWEB)

    Tape, J.W.; Eccleston, G.W.; Yates, M.A.

    1998-12-01

    The end of the superpower arms race has resulted in an unprecedented reduction in stockpiles of deployed nuclear weapons. Numerous proposals have been put forward and actions have been taken to ensure the irreversibility of nuclear arms reductions, including unilateral initiatives such as those made by President Clinton in September 1993 to place fissile materials no longer needed for a deterrent under international inspection, and bilateral and multilateral measures currently being negotiated. For the technologist, there is a unique opportunity to develop the technical means to monitor nuclear materials that have been declared excess to nuclear weapons programs, to provide confidence that reductions are taking place and that the released materials are not being used again for nuclear explosive programs. However, because of the sensitive nature of these materials, a fundamental conflict exists between the desire to know that the bulk materials or weapon components in fact represent evidence of warhead reductions, and treaty commitments and national laws that require the protection of weapons design information. This conflict presents a unique challenge to technologists. The flow of excess weapons materials, from deployed warheads through storage, disassembly, component storage, conversion to bulk forms, and disposition, will be described in general terms. Measurement approaches based on the detection of passive or induced radiation will be discussed along with the requirement to protect sensitive information from release to unauthorized parties. Possible uses of measurement methods to assist in the verification of arms reductions will be described. The concept of measuring attributes of items rather than quantitative mass-based inventory verification will be discussed along with associated information-barrier concepts required to protect sensitive information.

  1. Thermal Hyperbolic Metamaterials

    OpenAIRE

    Guo, Yu; Jacob, Zubin

    2013-01-01

    We explore the near-field radiative thermal energy transfer properties of hyperbolic metamaterials. The presence of unique electromagnetic states in a broad bandwidth leads to super-planckian thermal energy transfer between metamaterials separated by a nano-gap. We consider practical phonon-polaritonic metamaterials for thermal engineering in the mid-infrared range and show that the effect exists in spite of the losses, absorption and finite unit cell size. For thermophotovoltaic energy conve...

  2. Dynamic thermal environment and thermal comfort.

    Science.gov (United States)

    Zhu, Y; Ouyang, Q; Cao, B; Zhou, X; Yu, J

    2016-02-01

    Research has shown that a stable thermal environment with tight temperature control cannot bring occupants more thermal comfort. Instead, such an environment will incur higher energy costs and produce greater CO2 emissions. Furthermore, this may lead to the degeneration of occupants' inherent ability to combat thermal stress, thereby weakening thermal adaptability. Measured data from many field investigations have shown that the human body has a higher acceptance to the thermal environment in free-running buildings than to that in air-conditioned buildings with similar average parameters. In naturally ventilated environments, occupants have reported superior thermal comfort votes and much greater thermal comfort temperature ranges compared to air-conditioned environments. This phenomenon is an integral part of the adaptive thermal comfort model. In addition, climate chamber experiments have proven that people prefer natural wind to mechanical wind in warm conditions; in other words, dynamic airflow can provide a superior cooling effect. However, these findings also indicate that significant questions related to thermal comfort remain unanswered. For example, what is the cause of these phenomena? How we can build a comfortable and healthy indoor environment for human beings? This article summarizes a series of research achievements in recent decades, tries to address some of these unanswered questions, and attempts to summarize certain problems for future research. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  3. Worldwide governmental efforts to locate and destroy chemical weapons and weapons materials: minimizing risk in transport and destruction.

    Science.gov (United States)

    Trapp, Ralf

    2006-09-01

    The article gives an overview on worldwide efforts to eliminate chemical weapons and facilities for their production in the context of the implementation of the 1997 Chemical Weapons Convention (CWC). It highlights the objectives of the Organisation for the Prohibition of Chemical Weapons (OPCW), the international agency set up in The Hague to implement the CWC, and provides an overview of the present status of implementation of the CWC requirements with respect to chemical weapons (CW) destruction under strict international verification. It addresses new requirements that result from an increased threat that terrorists might attempt to acquire or manufacture CW or related materials. The article provides an overview of risks associated with CW and their elimination, from storage or recovery to destruction. It differentiates between CW in stockpile and old/abandoned CW, and gives an overview on the factors and key processes that risk assessment, management, and communication need to address. This discussion is set in the overall context of the CWC that requires the completion of the destruction of all declared CW stockpiles by 2012 at the latest.

  4. Advanced Computational Methods for Thermal Radiative Heat Transfer

    Energy Technology Data Exchange (ETDEWEB)

    Tencer, John; Carlberg, Kevin Thomas; Larsen, Marvin E.; Hogan, Roy E.,

    2016-10-01

    Participating media radiation (PMR) in weapon safety calculations for abnormal thermal environments are too costly to do routinely. This cost may be s ubstantially reduced by applying reduced order modeling (ROM) techniques. The application of ROM to PMR is a new and unique approach for this class of problems. This approach was investigated by the authors and shown to provide significant reductions in the computational expense associated with typical PMR simulations. Once this technology is migrated into production heat transfer analysis codes this capability will enable the routine use of PMR heat transfer in higher - fidelity simulations of weapon resp onse in fire environments.

  5. The singular weapon. What remains from the atomic age?; Die Singulaere Waffe. Was bleibt vom Atomzeitalter?

    Energy Technology Data Exchange (ETDEWEB)

    Eisenbart, Constanze (ed.) [Forschungsstaette der Evangelischen Studiengemeinschaft (FEST), Heidelberg (Germany)

    2012-07-01

    The book contains the following contributions: Why do we talk about the atomic age? The language of the atomic myth - comments to a protestant debate. Nuclear singularity between fiction and reality. Only one can get through: military singularity of nuclear weapons. Physical singularity of nuclear weapons. Nuclear weapons test and fall-out. Quantitative disarmament and qualitative rearmament. Do mini nukes neutralize the singularity? The vulnerability of the industrial society by the nuclear electromagnetic momentum. Nuclear weapons as national status symbol - the example of India. The general regulations of international laws and the singularity of nuclear weapons. The construction of normative singularity - development and change of the nuclear taboo.

  6. Weapon use increases the severity of domestic violence but neither weapon use nor firearm access increases the risk or severity of recidivism.

    Science.gov (United States)

    Folkes, Stephanie E F; Hilton, N Zoe; Harris, Grant T

    2013-04-01

    Use of weapons is a risk factor for domestic violence severity, especially lethality. It is not clear, however, whether access to firearms itself increases assault severity, or whether it is characteristic of a subgroup of offenders who are more likely to commit severe and repeated domestic assault. This reanalysis of 1,421 police reports of domestic violence by men found that 6% used a weapon during the assault and 8% had access to firearms. We expected that firearm use would be rare compared to other weapons and that actual weapon use rather than firearm access would increase the severity of domestic assaults. Firearm access was associated with assault severity, but this was mostly attributable to use of nonfirearm weapons. Weapon use was associated with older age, lower education, and relationship history as well as to assault severity. Victims were most concerned about future assaults following threats and actual injuries. Although firearm access and weapon use were related to actuarial risk of domestic violence recidivism, neither predicted the occurrence or severity of recidivism. We conclude that, consistent with previous research in the United States and Canada, firearm use in domestic violence is uncommon even among offenders with known firearm access. Weapon use is characteristic of a subgroup of offenders who commit more severe domestic violence, and seizure of weapons may be an effective intervention.

  7. mlo-Based Resistance: An Apparently Universal "Weapon" to Defeat Powdery Mildew Disease.

    Science.gov (United States)

    Kusch, Stefan; Panstruga, Ralph

    2017-03-01

    Loss-of-function mutations of one or more of the appropriate Mildew resistance locus o (Mlo) genes are an apparently reliable "weapon" to protect plants from infection by powdery mildew fungi, as they confer durable broad-spectrum resistance. Originally detected as a natural mutation in an Ethiopian barley landrace, this so-called mlo-based resistance has been successfully employed in European barley agriculture for nearly four decades. More recently, mlo-mediated resistance was discovered to be inducible in virtually every plant species of economic or scientific relevance. By now, mlo resistance has been found (as natural mutants) or generated (by induced mutagenesis, gene silencing, and targeted or nontargeted gene knock-out) in a broad range of monocotyledonous and dicotyledonous plant species. Here, we review features of mlo resistance in barley, discuss approaches to identify the appropriate Mlo gene targets to induce mlo-based resistance, and consider the issue of pleiotropic effects often associated with mlo-mediated immunity, which can harm plant yield and quality. We portray mlo-based resistance as an apparently universal and effective weapon to defeat powdery mildew disease in a multitude of plant species.

  8. Evaluation of alternatives for the disposition of surplus weapons-usable plutonium

    Energy Technology Data Exchange (ETDEWEB)

    Dyer, J.S.; Butler, J.C. [Univ. of Texas, Austin, TX (United States); Edmunds, T. [Lawrence Livermore National Lab., CA (United States)] [and others

    1997-04-04

    The Department of Energy Record of Decision (ROD) selected alternatives for disposition of surplus, weapons grade plutonium. A major objective of this decision was to prevent the proliferation of nuclear weapons. Other concerns addressed included economic, technical, institutional, schedule, environmental, and health and safety issues. The analysis reported here was conducted in parallel with technical, environmental, and nonproliferation analyses; it uses multiattribute utility theory to combine these considerations in order to facilitate an integrated evaluation of alternatives. This analysis is intended to provide additional insight regarding alternative evaluation and to assist in understanding the rationale for the choice of alternatives recommended in the ROD. Value functions were developed for objectives of disposition, and used to rank alternatives. Sensitivity analyses indicated that the ranking of alternatives for the base case was relatively insensitive to changes in assumptions over reasonable ranges. The analyses support the recommendation of the ROD to pursue parallel development of the vitrification immobilization alternative and the use of existing light water reactors alternative. 27 refs., 109 figs., 20 tabs.

  9. Electrical Systems (Vehicles and Weapon Subsystems)

    Science.gov (United States)

    1977-06-20

    Wattmeter ±1% of full scale range Multichannel oscillograph Voltage and current to ±2% of and appropriate voltage recorded value dropping resistor...lights), and for mechanical power for components (motors for hydraulic systems, fans, gun controls). ’i L.,.......... The vehicles usually have two ...Voltage Tests. 5.1.1 Engine Starting Power. 5.1.1.1 Method . To determine starting power requirements, use a fully charged battery in prime condition. Turn

  10. Weapon-Centric Graphic Controller User Evaluation

    Science.gov (United States)

    2009-08-01

    grades ranged from E4 to E7. 2.2 Instruments and Apparatus 2.2.1 Demographic Questionnaire A demographic questionnaire was administered to collect...FPS gamer ; prior practice with a mouse may have affected my performance. 1 More successful with the use of the mouse as opposed to using the joystick...easy to get to. 1 Joystick is better than trackball but it needs to be improved a little with responsiveness and fine cursor movements 1 I liked

  11. 78 FR 67289 - Continuation of the National Emergency With Respect to the Proliferation of Weapons of Mass...

    Science.gov (United States)

    2013-11-12

    ... Emergency With Respect to the Proliferation of Weapons of Mass Destruction On November 14, 1994, by... proliferation of nuclear, biological, and chemical weapons (weapons of mass destruction) and the means of... Order 12938 to respond more effectively to the worldwide threat of weapons of mass destruction...

  12. 78 FR 74218 - Imposition of Additional Sanctions on Syria Under the Chemical and Biological Weapons Control and...

    Science.gov (United States)

    2013-12-10

    ... Imposition of Additional Sanctions on Syria Under the Chemical and Biological Weapons Control and Warfare... chemical weapons in violation of international law or lethal chemical weapons against its own nationals... the Chemical and Biological Weapons Control and Warfare Elimination Act of 1991, 22 U.S.C. 5604(a) and...

  13. Aum Shinrikyo’s Nuclear and Chemical Weapons Development Efforts

    Directory of Open Access Journals (Sweden)

    Andrea A. Nehorayoff

    2016-03-01

    Full Text Available This article details the terrorist activities of the Japanese cult, Aum Shinrikyo, from the perspective of its complex engineering efforts aimed at producing nuclear and chemical weapons. The experience of this millenarian organization illustrates that even violent non-state actors with considerable wealth and resources at their disposal face numerous obstacles to realizing their destructive aspirations. Specifically, Aum’s attempts at complex engineering were stymied by a combination of unchecked fantastical thinking, self-imposed ideological constraints, and a capricious leadership. The chapter highlights each of these mechanisms, as well as the specific ways in which they constrained the decision-making process and the implementation of the complex engineering tasks associated with their unconventional weapons development.

  14. The Use of Chemical Weapons in the Syrian Conflict

    Directory of Open Access Journals (Sweden)

    René Pita

    2014-07-01

    Full Text Available This paper aims at explaining the lessons learned from the chemical attacks that took place in 2013 in the Syrian military conflict, especially the sarin attacks on the Ghouta area of Damascus on August 21. Despite the limitations the UN Mission found while investigating the use of chemical weapons (CW in Syria, some interesting conclusions for the scientific and medical community can be obtained from its reports. These include the advantages of the Chemical Weapons Convention procedure for the investigation of alleged CW use, when compared with the United Nations mechanism for similar investigations, the difficulties of differential diagnosis based only on clinical signs and symptoms and the impact of secondary contamination when responding to a CW attack.

  15. Hospital planning for weapons of mass destruction incidents

    Directory of Open Access Journals (Sweden)

    Perry Ronald

    2006-01-01

    Full Text Available As terrorists attacks increase in frequency, hospital disaster plans need to be scrutinized to ensure that they take into account issues unique to weapons of mass destruction. This paper reports a review of the literature addressing hospital experiences with such incidents and the planning lessons thus learned. Construction of hospital disaster plans is examined as an ongoing process guided by the disaster planning committee. Hospitals are conceived as one of the components of a larger community disaster planning efforts, with specific attention devoted to defining important linkages among response organizations. This includes the public health authorities, political authorities, prehospital care agencies, and emergency management agencies. A review is completed of six special elements of weapons of mass destruction incidents that should be addressed in hospital disaster plans: incident command, hospital security, patient surge, decontamination, mental health consequences, and communications. The paper closes with a discussion of the importance of training and exercises in maintaining and improving the disaster plan.

  16. Hospital planning for weapons of mass destruction incidents.

    Science.gov (United States)

    Perry, Ronald W; Lindell, Michael K

    2007-01-01

    As terrorist attacks increase in fre-quency, hospital disaster plans need to be scrutinized to ensure that they take into account issues unique to weapons of mass destruction. This paper reports a review of the literature addressing hospital experiences with such incidents and the planning lessons thus learned. Construction of hos-pital disaster plans is examined as an ongoing process guided by the disaster planning committee. A review is completed of six special elements of weapons of mass destruction incidents that should be addressed in hospital disaster plans. The paper closes with a dis-cussion of the importance of train-ing and exercises in maintaining and improving the disaster plan.

  17. Crystalline ceramics: Waste forms for the disposal of weapons plutonium

    Energy Technology Data Exchange (ETDEWEB)

    Ewing, R.C.; Lutze, W. [New Mexico Univ., Albuquerque, NM (United States); Weber, W.J. [Pacific Northwest Lab., Richland, WA (United States)

    1995-05-01

    At present, there are three seriously considered options for the disposition of excess weapons plutonium: (i) incorporation, partial burn-up and direct disposal of MOX-fuel; (ii) vitrification with defense waste and disposal as glass ``logs``; (iii) deep borehole disposal (National Academy of Sciences Report, 1994). The first two options provide a safeguard due to the high activity of fission products in the irradiated fuel and the defense waste. The latter option has only been examined in a preliminary manner, and the exact form of the plutonium has not been identified. In this paper, we review the potential for the immobilization of plutonium in highly durable crystalline ceramics apatite, pyrochlore, monazite and zircon. Based on available data, we propose zircon as the preferred crystalline ceramic for the permanent disposition of excess weapons plutonium.

  18. Development of the Weapon Borne Sensor parachute system

    Energy Technology Data Exchange (ETDEWEB)

    Behr, V.L.

    1998-06-01

    A parachute system was designed and prototypes built to deploy a telemetry package behind an earth-penetrating weapon just before impact. The parachute was designed to slow the 10 lb. telemetry package and wire connecting it to the penetrator to 50 fps before impact occurred. The parachute system was designed to utilize a 1.3-ft-dia cross pilot parachute and a 10.8-ft-dia main parachute. A computer code normally used to model the deployment of suspension lines from a packed parachute system was modified to model the deployment of wire from the weapon forebody. Results of the design calculations are presented. Two flight tests of the WBS were conducted, but initiation of parachute deployment did not occur in either of the tests due to difficulties with other components. Thus, the trajectory calculations could not be verified with data. Draft drawings of the major components of the parachute system are presented.

  19. Zero Nuclear Weapons and Nuclear Security Enterprise Modernization

    Science.gov (United States)

    2011-01-01

    Y-12) Oak Ridge, TN Uranium Savannah River Site (SRS) Aiken, SC Tritium Pantex Plant (PX) Amarillo, TX Assembly /disassembly Kansas City Plant (KCP...reliable without nuclear testing. The SSP is a comprehensive, experiment-based modeling and simulation effort that applies data from multiple subcritical ...end of underground nuclear testing launched the stewardship program to ensure nuclear weapons reliability through subcritical tests and other

  20. Studies on damage aggregation for weapons salvos II

    OpenAIRE

    Esary, James Daniel

    1991-01-01

    This document records three working studies from an ongoing investigation of models and methods for the prediction of the cumulative effect of weapons salvos. It is the second such document, following NPS Technical Report NPS55-90-16, July 1990. Its first two papers are about cellular targeting scenarios which lead to the proportional damage aggregation mechanism which has figured strongly in the investigation so far. The other paper extends an earlier comparison of an empirical rule for dama...

  1. Afghan National Security Forces: Actions Needed to Improve Weapons Accountability

    Science.gov (United States)

    2014-07-01

    including CoreIMS. As for weapons provided to the Afghan National Police ( ANP ), there is no standardized or automated system to account for them...Instead, the ANP uses a combination of hard copy documents, handwritten records, and some Microsoft Excel spreadsheets to maintain inventory records. To...At the ANP 22 Bunkers Depot—the national depot for the ANP — SIGAR was unable to conduct a fully inclusive inventory test; however, SIGAR’s limited

  2. Nuclear energy in a nuclear weapon free world

    Energy Technology Data Exchange (ETDEWEB)

    Pilat, Joseph [Los Alamos National Laboratory

    2009-01-01

    The prospect of a nuclear renaissance has revived a decades old debate over the proliferation and terrorism risks of the use of nuclear power. This debate in the last few years has taken on an added dimension with renewed attention to disarmament. Increasingly, concerns that proliferation risks may reduce the prospects for realizing the vision of a nuclear-weapon-free world are being voiced.

  3. Digital Guided Weapons Technology. Volume 1. Digital Processor System Studies

    Science.gov (United States)

    1976-11-01

    medium to provide the proper adjustment. The adjustment can be made by adapter modules, either permanently placed in the subsystem or used in an...transmission and interrupt capability. This bus provides a flexible communication and control medium for integration of the weapon subsystems. The...AFATL/DLB AFATL/DLA AFATL/DLMA ADTC/SD15 AFATL/ DUfT AFATL/DLMM AFATL/DLY ADTC/SD-7 TAWC/TRADOCLO AFATL/DLOSL Redstone Sei Info Center Off

  4. Chemical Demilitarization Assembled Chemical Weapons Alternatives (Chem Demil-ACWA)

    Science.gov (United States)

    2015-12-01

    Energetics Neutralization System are underway. Construction and procurement associated with the Static Detonation Chamber ( SDC ), which will be used for...June 2015, the SDC was disassembled, packaged for transport, and shipped to BGCAPP. Construction of the SDC Enclosure Building is ongoing and...installation of the SDC began in December 2015. The Organisation for the Prohibition of Chemical Weapons requires intrusive sampling to verify the chemical

  5. The bioscience revolution & the biological weapons threat: levers & interventions

    Directory of Open Access Journals (Sweden)

    Martin Greg

    2009-02-01

    Full Text Available Abstract In December 2008, the US Commission on the Prevention of Weapons of Mass Destruction Proliferation and Terrorism, released a report, World At Risk. The Report points to the fact that, not only is the use of a weapon of mass destruction in a terrorist attack before the end of 2013, more likely than not, but also to the fact that terrorists are more likely to be able to obtain and use biological weapons than nuclear. This paper examines the recommendations of the report in the context of the historic and geopolitical changes, in particular globalization. The authors highlight the "dual-use" dilemma, as described in the report, as the paradoxical use of technology developed for the benefit of mankind being used for sinister purposes. The mitigation of such a threat lies in broad stakeholder involvement and cooperation, including non-state actors, governments and the bio-tech industry itself. The importance of vigilance measures within the life science community is emphasized and, the authors propose, could include a web-based didactic course in bioterrorism and weapons of mass destruction identification. The site could outline safety protocols, have detailed disaster management tutorials, and could be specifically tailored for different subsets of industry and health professionals. The paper concludes with an endorsement of a multi-pronged approach including strong international guidelines and intelligence cooperation and preparatory measures such as the wide-spread use of detection systems as well as diagnostic decision support systems for bioterrorism detection at the local level.

  6. Application of a Dynamic Programming Algorithm for Weapon Target Assignment

    Science.gov (United States)

    2016-02-01

    responsible for its safe custody. UNCLASSIFIED UNCLASSIFIED Application of a Dynamic Programming Algorithm for Weapon Target Assignment...the technique used. As a precaution , such techniques are generally referred to as suboptimal. As mentioned above, an exact solution can only be...Skovde, Sweden, 2010. [5] K. C. Jha, “Very Large-Scale Neighborhood Search Heuristics for Combinatorial Optimization Problems,” University of Florida

  7. Extended Nuclear Deterrence for Europe Without Forward-based Weapons

    Science.gov (United States)

    2012-02-15

    financial costs of nuclear burden sharing, bolsters safety and security and further reduces proliferation risks. 22 Bibliography Bildt, Carl and... Sagan , Scott D. and Waltz, Kenneth N. The Spread of Nuclear Weapons: A Debate Renewed. W. W. Norton and Company New York, NY and London...Point. Center for International Relations, Reports and Analyses. Konrad-Adenauer Foundation, Warsaw, 2011, 2. 30 Bildt, Carl and Sikorski, Radek

  8. Weapons, Body Postures, and the Quest for Dominance in Robberies

    DEFF Research Database (Denmark)

    Mosselman, Floris; Weenink, Don; Lindegaard, Marie Rosenkrantz

    2018-01-01

    Objective: A small-scale exploration of the use of video analysis to study robberies. We analyze the use of weapons as part of the body posturing of robbers as they attempt to attain dominance. Methods: Qualitative analyses of video footage of 23 shop robberies. We used Observer XT software (vers...... violent crime unfolds as sequences of bodily movements. We provide methodological recommendations and suggest a larger scale comparative project....

  9. DoD Nuclear Weapons Personnel Reliability Assurance

    Science.gov (United States)

    2016-04-27

    systems, PCM and equipment, or SNM duty. When an individual’s performance may be impaired by medical care or the use of prescribed medication or short...controlled or illegal drug, including cannabis -based products. c. An individual found to have ever used a drug that could cause flashbacks. d. An... Medical policies, standards, and procedures for evaluation of candidates and individuals subject to nuclear weapons personnel reliability assurance. b

  10. The Soviet Nordic Nuclear Weapon Free Zone Proposal

    Science.gov (United States)

    1990-06-01

    contends, 2 0 3Purver, p. 31. 2 0 4Malcolm Mackintosh , "The Security Context: A Soviet View" Britain and NATO’s Northern Flank, Geoffrey Till, Ed...weaponry but the politics 2 2 7 Fred Halliday, James Sherr, ed. Soviet Power: The Continuing Challenge, p. 199. 2 2 8 Shultz, p. 325. 104 surrounding the...Nuclear Weapons" The Washington Quarterly, Winter 1986. Fred Halliday, James Sherr, ed., Soviet Power: The Continuing Challenge, p. 199. Thomas T

  11. Nuclear Weapons and NATO, Analytical Survey of Literature

    Science.gov (United States)

    1975-06-01

    at the military camp of Bourg- Leopold , 100 km from Brussels and 30 km from the Dutch border, a one day panorama of allied infantry weapons, viewed...ui.interruptedly since 1945, and three of their leaders (the late Premier Aleide De Gasper 1, and former Premiers Amintore Fanfani and Aldo Moro) have...Giorgio - senior party leader LAMA, Luciano - Secretary-General of the Italian General Confederation of Labor (CGIL) TORTORELLA, Aldo - Editor of

  12. Chinese strategic weapons and the plutonium option (U)

    Energy Technology Data Exchange (ETDEWEB)

    Lewis, John W.; Xui Litai

    1988-04-01

    In their article "Chinese Strategic Weapons and the Plutonium Option," John W. Lewis and Xue Litai of the Center for International Security and Arms Control at Stanford University's International Strategic Institute present an unclassified look at plutonium processing in the PRC. The article draws heavily on unclassified PRC sources for its short look at this important subject. Interested readers will find more detailed information in the recently available works referenced in the article.

  13. Agent-based Modeling Methodology for Analyzing Weapons Systems

    Science.gov (United States)

    2015-03-26

    1998) published similarities between ABM and the more traditional equation based methods of simulation and developed criteria for choosing one...analysis method of the effects of a new weapon on tactics and combat decision making by modeling flexible agent behaviors in a mission level combat...adaptive system (Bullock, McIntyre, & Hill, 2000). There are several statistical methods available for conducting analysis of simulation models (Law

  14. Engineering Design Handbook. Army Weapon Systems Analysis. Part 2

    Science.gov (United States)

    1979-10-01

    estimate a, f, 6, and p, although other methods of estima- tion could be used [for example, the maximum-likelihood estimates of Cohen (Ref. 25, or...34, Technometrics 9, pp. 629-45 (1967). 25. A. C. Cohen , "Maximum Likelihood Estimation in the Weibull Distribution Based on Complete and Censored Samples...Vulnerability Model for Weapon Sites with Interdependent Elements". Operations Research 7, pp. 217-25 (March-April 1959). 14. Guillermo Owen, "Minimization

  15. Laser-plasma weapons-effects-simulation progress report

    Energy Technology Data Exchange (ETDEWEB)

    Gusinow, M.A.; Woodall, D.; Anthes, J.P.; Palmer, M.A.; McGuire, E.J.; Matzen, M.K.; Glibert, K.M.

    1978-06-01

    The present goal of the Laser-Plasma Weapons-Effects-Simulation Program is the study of the conversion of laser radiation to x-radiation. The purpose is ultimately to make an intense pulsed source of x-rays to be useful in simulation programs. The requirement of a large conversion efficiency (from Laser to x-radiation) is important in order to minimize the energy requirements, size, and expense of the laser system.

  16. Directed Energy Weapon System for Ballistic Missile Defense

    Science.gov (United States)

    2009-02-15

    its civilian nuclear program since the 1990s, but revelations in 2002 and 2003 of clandestine research into fuel enrichment and conversion raised...weaponize its nuclear program.39 Since December 2007, Iran has built a stockpile of low- enriched uranium hexafluoride.40...development program, looking first at gas dynamic carbon dioxide lasers and then deuterium fluoride chemical lasers.88 Although the service experienced some

  17. Lethal Autonomous Weapons: Take the Human Out of the Loop

    Science.gov (United States)

    2017-06-16

    necessarily endorsed by the US Naval War College or the Department of the Navy. 16 June 2017 3 4 Table of Contents Introduction ... Introduction Lethal Autonomous Weapons (LAWS) should be employed by the United States on the field of battle. LAWS will save lives because they are... philosophy and my training guidance, they’ll know the 28 Ibid. 29 Ibid. 18 lessons that I

  18. Nuclear transparency and registers of nuclear weapons and fissile materials

    OpenAIRE

    Müller, Harald; Schaper, Annette

    2010-01-01

    "Nuclear disarmament is a laborious process that extends over decades. It can only succeed if all participants have a growing sense of confidence that the zero condition can be reached and verified without any uncertainty. A high degree of transparency is needed in order to place this confidence on a firm foundation. The present report calls for the step-by-step introduction of a comprehensive register of fissile material and nuclear weapons which constantly accompanies the disarmament proces...

  19. Pakistan’s Nuclear Weapons: Proliferation and Security Issues

    Science.gov (United States)

    2012-06-26

    Wajid Shamsul Hasan, Pakistan’s High Commissioner to the United Kingdom, argued in an October 2010 letter to a British newspaper that eight Indian... Islamic Republic of Pakistan on Pre-Notification of Flight Testing of Ballistic Missiles.” Full text on the Henry L. Stimson Center website: http...Kerry asking what would happen to Pakistan’s nuclear weapons in the event of a radical Islamic coup in Islamabad, Secretary Rice answered, “[w]e

  20. Stealing the Sword: Limiting Terrorist Use of Advanced Conventional Weapons

    Science.gov (United States)

    2007-01-01

    Israel Aircraft Industries’ Fireball Has Four Deployable Wings as Do the PGMM and Armement Léger à Fibre Optique (ALFO...responsibility of the authors. xxv Abbreviations AGLS Automatic Gun-Laying System ALFO Light Fiber-Optic Weapon (Armement Léger à Fibre Optique ...2.11 Israel Aircraft Industries’ Fireball Has Four Deployable Wings as Do the PGMM and Armement Léger à Fibre Optique (ALFO) What Types of Advanced

  1. Manual for national implementation of the Chemical Weapons Convention

    Energy Technology Data Exchange (ETDEWEB)

    Kellman, B. [DePaul Univ., Chicago, IL (United States); Tanzman, E.A.; Gualtieri, D.S.; Grimes, S.W. [Argonne National Lab., IL (United States)

    1993-12-01

    The Convention on the Prohibition on the Development, Production, Stockpiling and Use of Chemical Weapons and on their Destruction, opened for signature, January 13, 1993, in Paris, France (CWC), is an unprecedented multilateral effort to eradicate an entire category of weapons of mass destruction and assure their continued absence through international verification. The CWC has been signed by over 150 nations, and is expected to enter into force in 1995. With its far-reaching system to verify compliance, the CWC presages a new foundation for international security based neither on fear nor on trust, but on the rule of law. A central feature of the CWC is that it requires each State Party to take implementing measures to make the Convention operative. The CWC goes beyond all prior arms control treaties in this regard. For this approach to succeed, and to inspire the eradication of other categories of mass destruction weaponry, coordination and planning are vital to harmonize CWC national implementation among States Parties. This Manual for National Implementation of the Chemical Weapons Convention is designed to assist States Parties, duly taking into account the distinctive aspects of their legal systems, in maximizing CWC enforcement consistent with their national legal obligations.

  2. Hypothyroidism among former workers of a nuclear weapons facility.

    Science.gov (United States)

    Leavey, Anna; Frank, Arthur L; Pinson, Barbara; Shepherd, Sara; Burstyn, Igor

    2011-12-01

    Ionizing radiation alters thyroid function, and workers at a nuclear weapons facility may be exposed to above environmental levels of radiation. Hypothyroid status was determined for 622 former workers of a nuclear weapons facility located in Texas, using a combination of measured thyroid stimulating hormone (TSH) levels and thyroid medication history, as part of an on-going health surveillance program. We classified 916 unique job titles into 35 job categories. According to the most stringent TSH definition used in this study (0.3-3.0 IU/ml), 174 (28.0%) former workers were considered to be hypothyroid; of these 66 (41.8%) were females and 108 (23.3%) were males. In logistic regression analysis adjusted for age, gender, and smoking status, only having worked as a material handler (n = 18) exhibited an elevated risk of developing hypothyroidism compared to other jobs (OR 3.88, 95% CI 1.43-11.07). This is one of the jobs with suspected exposure to radiation. No excess risk of hypothyroidism was observed for any of the other job categories. There is suggestive evidence that only material handlers at this nuclear weapons facility may have elevated risk of hypothyroidism; further evaluation of thyroid health in this population is warranted. Copyright © 2011 Wiley Periodicals, Inc.

  3. Weapons, Body Postures, and the Quest for Dominance in Robberies

    Science.gov (United States)

    Mosselman, Floris; Lindegaard, Marie Rosenkrantz

    2018-01-01

    Objective: A small-scale exploration of the use of video analysis to study robberies. We analyze the use of weapons as part of the body posturing of robbers as they attempt to attain dominance. Methods: Qualitative analyses of video footage of 23 shop robberies. We used Observer XT software (version 12) for fine-grained multimodal coding, capturing diverse bodily behavior by various actors simultaneously. We also constructed story lines to understand the robberies as hermeneutic whole cases. Results: Robbers attain dominance by using weapons that afford aggrandizing posturing and forward movements. Guns rather than knives seemed to fit more easily with such posturing. Also, victims were more likely to show minimizing postures when confronted with guns. Thus, guns, as part of aggrandizing posturing, offer more support to robbers’ claims to dominance in addition to their more lethal power. In the cases where resistance occurred, robbers either expressed insecure body movements or minimizing postures and related weapon usage or they failed to impose a robbery frame as the victims did not seem to comprehend the situation initially. Conclusions: Video analysis opens up a new perspective of how violent crime unfolds as sequences of bodily movements. We provide methodological recommendations and suggest a larger scale comparative project. PMID:29416178

  4. Toy weapons and firecrackers: a source of hearing loss.

    Science.gov (United States)

    Gupta, D; Vishwakarma, S K

    1989-03-01

    Although acoustic injury as a result of exposure to noisy toys and firecrackers has been reported previously, most of these studies have been conducted on adults. The purpose of this prospective study, conducted at the time of Deepawali, an Indian festival of fireworks, was two-fold: 1. to measure the acoustic output of representative samples of toy weapons and firecrackers and the intensity level at critical spectator points from the site of emission; and 2. to determine the auditory status of a cross section of the target population, involving 600 participants from various age groups, before and after exposure to firecracker noise at Deepawali. The average sound level at a distance of 3 m was 150 dB, thus exceeding the damage risk criterion for adults (i.e., 130 dB peak level). An average 30 dB persistent sensorineural hearing loss was found in 2.5% of the target population as a result of toy weapon/firecracker noise during Deepawali. The 9- to 15-year-old age group was most affected. A judicious approach in the manufacture and use of toy weapons and firecrackers, in addition to legal restraints, is advocated.

  5. High-energy laser weapons since the early 1960s

    Science.gov (United States)

    Cook, Joung

    2013-02-01

    Both the U.S. and Russia/USSR have made great strides toward developing high-energy laser weapons for their future national defense systems since the early 1960s. Many billions of dollars and rubles were invested in the effort. Many hundreds of gifted scientists and engineers devoted their careers to working on the problems. They achieved major technological advances and made impressive and successful demonstrations. After more than half a century, however, neither side has yet adapted the first laser weapon for a military use. Why? This paper discusses the history of key technological advancements and successes, as well as some of the difficulties encountered. It also discusses fundamental technological advantages and limitations of high-energy laser weapons, and also the unique social, cultural, and political environments that have contributed to the history. The high-energy laser technical community is in the process of finding ways to adapt to the new warfare environment by taking advantage of the lessons learned in the past while incorporating the new technologies and ideas evolved in recent years.

  6. Aum Shinrikyo's Chemical and Biological Weapons: More Than Sarin.

    Science.gov (United States)

    Tu, A T

    2014-07-01

    The radical religious group Aum Shinrikyo was founded in Japan in the 1980s and grew rapidly in the 1990s. Aum members perpetrated a mass murder in Matsumoto City in 1994, where they used sarin as a chemical weapon to poison approximately 500 civilians. On March 20, 1995, Aum deployed sarin in an even larger terrorist attack on the Tokyo Subway System, which poisoned some 6,000 people. After the Tokyo Subway attack, the Japanese Police arrested the sect's senior members. From 2005 through 2011, 13 of these senior members were sentenced to death. In this article, aspects of Aum's chemical and biological terrorism are reviewed. Sarin production efforts by the sect are described, including how the degradation product of sarin in soil, methylphosphonic acid, enabled the detection of sarin production sites. Also, Aum's chemical-warfare agents other than sarin are described, as are its biological weapons. The author was permitted by the Japanese government to interview Dr. Tomomasa Nakagawa, one of the senior members of Aum Shinrikyo. From Dr. Nakagawa the author obtained valuable inside information about Aum's chemical and biological weapons programs. Copyright © 2014 Central Police University.

  7. Patenting the bomb: nuclear weapons, intellectual property, and technological control.

    Science.gov (United States)

    Wellerstein, Alex

    2008-03-01

    During the course of the Manhattan Project, the U.S. government secretly attempted to acquire a monopoly on the patent rights for inventions used in the production of nuclear weapons and nuclear energy. The use of patents as a system of control, while common for more mundane technologies, would seem at first glance to conflict with the regimes of secrecy that have traditionally been associated with nuclear weapons. In explaining the origins and operations of the Manhattan Project patent system, though, this essay argues that the utilization of patents was an ad hoc attempt at legal control of the atomic bomb by Manhattan Project administrators, focused on the monopolistic aspects of the patent system and preexisting patent secrecy legislation. From the present perspective, using patents as a method of control for such weapons seems inadequate, if not unnecessary; but at the time, when the bomb was a new and essentially unregulated technology, patents played an important role in the thinking of project administrators concerned with meaningful postwar control of the bomb.

  8. Primary tasks to implement the Chemical Weapons Convention

    Energy Technology Data Exchange (ETDEWEB)

    Kellman, B. [DePaul Univ., Chicago, IL (United States). Coll. of Law; Tanzman, E.A. [Argonne National Lab., IL (United States)

    1997-12-31

    The Chemical Weapons Convention (CWC) is an unprecedented multilateral effort to eradicate an entire category of weapons of mass destruction and assure their continued absence through international verification. In 1993, concerns arose that the complexity of integrating the treaty with national law could cause some nations to implement the Convention without regard to what others nations were doing, thereby causing inconsistencies among States Parties in how the Conventional would be carried out. As a result, the Manual for National Implementation of the Chemical Weapons Convention was prepared. The Manual is designed to assist States Parties by increasing understanding of the Convention and identifying its obligations as well as suggesting methods to meet them, duly taking into account the distinctive aspects of their legal systems. It acknowledges areas of ambiguity that States Parties should address, and it analyzes legal initiatives that may be undertaken to strengthen the Convention`s enforcement. This paper draws from the Manual and briefly addresses the two tasks that every CWC State Party must undertake first in order to effectively fulfill its extensive requirements. First, each State Party must establish a National Authority. Second, each State Party must enact implementing measures to ensure that its government as well as its businesses and citizens comply with the treaty. As this paper generally discusses how States Parties from different legal backgrounds can accomplish these two tasks, it cannot address every detail of how each State Party should proceed.

  9. The ``Nuclear Renaissance'' and the Spread of Nuclear Weapons

    Science.gov (United States)

    Lyman, Edwin S.

    2007-05-01

    As interest grows around the world in nuclear power as an energy source that could help control greenhouse gas emissions, some have proclaimed the arrival of a ``nuclear renaissance.'' But can the increased risks of more nuclear power be managed? The political crisis surrounding Iran's pursuit of uranium enrichment has exposed weaknesses in the nuclear nonproliferation regime. Also, al Qaeda's declared interest in weapons of mass destruction raises the concern that terrorists could acquire nuclear weapons by stealing materials from poorly secured facilities. Growth of nuclear energy would require the construction of many additional uranium enrichment plants. And the generation of more spent nuclear fuel without a credible waste disposal strategy would increase political support for reprocessing, which separates large quantities of weapon-usable plutonium from spent fuel. There is little evidence that the various institutional arrangements and technical schemes proposed to mitigate the security risks of a major nuclear expansion would be effective. This talk will focus on the measures necessary to allow large-scale global growth of nuclear power without resulting in an unacceptably high risk of nuclear proliferation and nuclear terrorism, and will discuss the feasibility of such measures. To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.OSS07.E1.2

  10. Re-examining the 1996 ICJ Advisory Opinion: Concerning the Legality of Nuclear Weapons

    Directory of Open Access Journals (Sweden)

    Jasjit Singh

    2012-10-01

    Full Text Available The primary objections raised against total elimination of nuclear weapons are built around a few arguments mostly of non-technical nature.Nuclear weapons and the strategies for their use have resulted in the establishment of a vicious circle within which the international community is trapped.The argument that the world will be unsafe without nuclear weapons is only meant to further the narrow self-interest of the nuclear weapon states and their allies.The World Court’s far-reaching 1996 advisory opinion concluded that almost any use or threat of use of nuclear weapons would violate international humanitarian law and law applicable in armed conflict, undermining most claims of nuclear weapon states regarding the legitimacy of possession, use or threat of use of nuclear weapons. The next logical step would be an initiative for a nuclear convention banning the use and threat of use of nuclear weapons in Asia and the adjoining oceans. But as long as the dominant elites in society and the nation-state believe in the utility of nuclear weapons for national security or as the currency of power, abolition of nuclear weapons will remain a mirage.

  11. Weapon carrying and psychopathic-like features in a population-based sample of Finnish adolescents.

    Science.gov (United States)

    Saukkonen, Suvi; Laajasalo, Taina; Jokela, Markus; Kivivuori, Janne; Salmi, Venla; Aronen, Eeva T

    2016-02-01

    We investigated the prevalence of juvenile weapon carrying and psychosocial and personality-related risk factors for carrying different types of weapons in a nationally representative, population-based sample of Finnish adolescents. Specifically, we aimed to investigate psychopathic-like personality features as a risk factor for weapon carrying. The participants were 15-16-year-old adolescents from the Finnish self-report delinquency study (n = 4855). Four different groups were formed based on self-reported weapon carrying: no weapon carrying, carrying knife, gun or other weapon. The associations between psychosocial factors, psychopathic-like features and weapon carrying were examined with multinomial logistic regression analysis. 9% of the participants had carried a weapon in the past 12 months. Adolescents with a history of delinquency, victimization and antisocial friends were more likely to carry weapons in general; however, delinquency and victimization were most strongly related to gun carrying, while perceived peer delinquency (antisocial friends) was most strongly related to carrying a knife. Better academic performance was associated with a reduced likelihood of carrying a gun and knife, while feeling secure correlated with a reduced likelihood of gun carrying only. Psychopathic-like features were related to a higher likelihood of weapon carrying, even after adjusting for other risk factors. The findings of the study suggest that adolescents carrying a weapon have a large cluster of problems in their lives, which may vary based on the type of weapon carried. Furthermore, psychopathic-like features strongly relate to a higher risk of carrying a weapon.

  12. China's ASAT Weapon: Capabilities and the Potential Threat

    Science.gov (United States)

    Forden, Geoffrey

    2008-04-01

    Much has been said about China's 11 January 2007 test of an anti-satellite (ASAT) weapon but few analysts have based their comments on a scientific determination of the weapons capabilities. This paper presents such an analysis derived from the observed pattern of debris, as observed by NORAD and posted on-line by NASA. It is clear that this was a direct hit-to-kill weapon (as opposed to a fragmentation-type explosive warhead), it massed about 600 kg, and was capable of accelerations of at least 6 Gs. It can be inferred with a reasonable degree of confidence that it used an on-board optical tracker, most likely operating in visible light. Furthermore, since the closing speed between the target satellite and the interceptor was 8 km/s during the test, this weapon could be used to attack satellites at higher altitude orbits, such as NAVSTAR/GPS and geostationary satellites that include communications and early warning satellites. This test produced ten times as many pieces of debris as an earlier US hit-to-kill ASAT test which, because of their higher altitudes, will last thousands of years---hundreds of times longer than the debris in the US test. China's test increased the chances of some low earth orbit satellite being hit by a piece of debris by 50%, from about 12% to 18% each year. Given this weapon's capabilities, it is possible to ``war game'' what an all-out Chinese ASAT attack would look like and what responses the US could take. (It is important to emphasize that this is a capabilities-based exercise and not based on Chinese intentions.) If China did launch such an attack, it could eliminate a large fraction of US military satellites in low earth orbit including photo-reconnaissance and electronic intelligence satellites, but not all of them, in the first 24 hours; the requirement that the target satellites be illuminated by the sun limits the attack. Furthermore, the US could maneuver its LEO satellites in the first hours of the attack and greatly

  13. Integrating novel chemical weapons and evolutionarily increased competitive ability in success of a tropical invader.

    Science.gov (United States)

    Zheng, Yu-Long; Feng, Yu-Long; Zhang, Li-Kun; Callaway, Ragan M; Valiente-Banuet, Alfonso; Luo, Du-Qiang; Liao, Zhi-Yong; Lei, Yan-Bao; Barclay, Gregor F; Silva-Pereyra, Carlos

    2015-02-01

    The evolution of increased competitive ability (EICA) hypothesis and the novel weapons hypothesis (NWH) are two non-mutually exclusive mechanisms for exotic plant invasions, but few studies have simultaneously tested these hypotheses. Here we aimed to integrate them in the context of Chromolaena odorata invasion. We conducted two common garden experiments in order to test the EICA hypothesis, and two laboratory experiments in order to test the NWH. In common conditions, C. odorata plants from the nonnative range were better competitors but not larger than plants from the native range, either with or without the experimental manipulation of consumers. Chromolaena odorata plants from the nonnative range were more poorly defended against aboveground herbivores but better defended against soil-borne enemies. Chromolaena odorata plants from the nonnative range produced more odoratin (Eupatorium) (a unique compound of C. odorata with both allelopathic and defensive activities) and elicited stronger allelopathic effects on species native to China, the nonnative range of the invader, than on natives of Mexico, the native range of the invader. Our results suggest that invasive plants may evolve increased competitive ability after being introduced by increasing the production of novel allelochemicals, potentially in response to naïve competitors and new enemy regimes. © 2014 The Authors. New Phytologist © 2014 New Phytologist Trust.

  14. Supporting Technology for Chain of Custody of Nuclear Weapons and Materials throughout the Dismantlement and Disposition Processes

    Energy Technology Data Exchange (ETDEWEB)

    Bunch, Kyle J.; Jones, Anthony M.; Ramuhalli, Pradeep; Benz, Jacob M.; Denlinger, Laura S.

    2014-05-04

    signatures of sealed metallic containers can be used to rapidly confirm the presence of specific components on a yes/no basis without revealing classified information. PNNL researchers have also used ultrasonic measurements to obtain images of material microstructures which may be used as templates or unique identifiers of treaty-limited items. Such alternative technologies are suitable for application in various stages of weapons dismantlement and often include the advantage of an inherent information barrier due to the inability to extract classified weapon design information from the collected data. As a result, these types of technologies complement radiation-based verification methods for arms control. This article presents an overview of several alternative verification technologies that are suitable for supporting a future, broader and more intrusive arms control regime that spans the nuclear weapons disarmament lifecycle. The general capabilities and limitations of each verification modality are discussed and example technologies are presented. Potential applications are defined in the context of the nuclear material and weapons lifecycle. Example applications range from authentication (e.g., tracking and signatures within the chain of custody from downloading through weapons storage, unclassified templates and unique identification) to verification of absence and final material disposition.

  15. Sea-dumped chemical weapons: environmental risk, occupational hazard.

    Science.gov (United States)

    Greenberg, M I; Sexton, K J; Vearrier, D

    2016-01-01

    Chemical weapons dumped into the ocean for disposal in the twentieth century pose a continuing environmental and human health risk. In this review we discuss locations, quantity, and types of sea-dumped chemical weapons, related environmental concerns, and human encounters with sea-dumped chemical weapons. We utilized the Ovid (http://ovidsp.tx.ovid.com) and PubMed (http://www.pubmed.org) search engines to perform MEDLINE searches for the terms 'sea-dumped chemical weapons', 'chemical warfare agents', and 'chemical munitions'. The searches returned 5863 articles. Irrelevant and non-English articles were excluded. A review of the references for these articles yielded additional relevant sources, with a total of 64 peer-reviewed articles cited in this paper. History and geography of chemical weapons dumping at sea: Hundreds of thousands of tons of chemical munitions were disposed off at sea following World War II. European, Russian, Japanese, and United States coasts are the areas most affected worldwide. Several areas in the Baltic and North Seas suffered concentrated large levels of dumping, and these appear to be the world's most studied chemical warfare agent marine dumping areas. Chemical warfare agents: Sulfur mustard, Lewisite, and the nerve agents appear to be the chemical warfare agents most frequently disposed off at sea. Multiple other type of agents including organoarsenicals, blood agents, choking agents, and lacrimators were dumped at sea, although in lesser volumes. Environmental concerns: Numerous geohydrologic variables contribute to the rate of release of chemical agents from their original casings, leading to difficult and inexact modeling of risk of release into seawater. Sulfur mustard and the organoarsenicals are the most environmentally persistent dumped chemical agents. Sulfur mustard in particular has a propensity to form a solid or semi-solid lump with a polymer coating of breakdown products, and can persist in this state on the ocean floor

  16. Shape memory thermal conduction switch

    Science.gov (United States)

    Vaidyanathan, Rajan (Inventor); Krishnan, Vinu (Inventor); Notardonato, William U. (Inventor)

    2010-01-01

    A thermal conduction switch includes a thermally-conductive first member having a first thermal contacting structure for securing the first member as a stationary member to a thermally regulated body or a body requiring thermal regulation. A movable thermally-conductive second member has a second thermal contacting surface. A thermally conductive coupler is interposed between the first member and the second member for thermally coupling the first member to the second member. At least one control spring is coupled between the first member and the second member. The control spring includes a NiTiFe comprising shape memory (SM) material that provides a phase change temperature <273 K, a transformation range <40 K, and a hysteresis of <10 K. A bias spring is between the first member and the second member. At the phase change the switch provides a distance change (displacement) between first and second member by at least 1 mm, such as 2 to 4 mm.

  17. Using Modeling and Simulation to Complement Testing for Increased Understanding of Weapon Subassembly Response.

    Energy Technology Data Exchange (ETDEWEB)

    Wong, Michael K. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Davidson, Megan [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2017-09-01

    As part of Sandia’s nuclear deterrence mission, the B61-12 Life Extension Program (LEP) aims to modernize the aging weapon system. Modernization requires requalification and Sandia is using high performance computing to perform advanced computational simulations to better understand, evaluate, and verify weapon system performance in conjunction with limited physical testing. The Nose Bomb Subassembly (NBSA) of the B61-12 is responsible for producing a fuzing signal upon ground impact. The fuzing signal is dependent upon electromechanical impact sensors producing valid electrical fuzing signals at impact. Computer generated models were used to assess the timing between the impact sensor’s response to the deceleration of impact and damage to major components and system subassemblies. The modeling and simulation team worked alongside the physical test team to design a large-scale reverse ballistic test to not only assess system performance, but to also validate their computational models. The reverse ballistic test conducted at Sandia’s sled test facility sent a rocket sled with a representative target into a stationary B61-12 (NBSA) to characterize the nose crush and functional response of NBSA components. Data obtained from data recorders and high-speed photometrics were integrated with previously generated computer models in order to refine and validate the model’s ability to reliably simulate real-world effects. Large-scale tests are impractical to conduct for every single impact scenario. By creating reliable computer models, we can perform simulations that identify trends and produce estimates of outcomes over the entire range of required impact conditions. Sandia’s HPCs enable geometric resolution that was unachievable before, allowing for more fidelity and detail, and creating simulations that can provide insight to support evaluation of requirements and performance margins. As computing resources continue to improve, researchers at Sandia are hoping

  18. An Empirical Investigation of the Integrated Weapon System Management Concept of Seamless Processes.

    Science.gov (United States)

    1995-09-01

    DTIC ELECTE NOV 0 Z1995 G AN EMPIRICAL INVESTIGATION OF THE INTEGRATED WEAPON SYSTEM MANAGEMENT CONCEPT OF "SEAMLESS PROCESSES" THESIS...A± vail and/or i, U IGOK AN EMPIRICAL INVESTIGATION OF THE INTEGRATED WEAPON SYSTEM MANAGEMENT CONCEPT OF "SEAMLESS PROCESSES" THESIS...GAL7LAL/95S-7 AN EMPIRICAL INVESTIGATION OF THE INTEGRATED WEAPON SYSTEM MANAGEMENT CONCEPT OF "SEAMLESS PROCESSES" THESIS Presented to the Faculty

  19. Why the United States should negotiate a ban on naval tactical nuclear weapons

    OpenAIRE

    Malloy, Todd Webster

    1991-01-01

    Approved for public release; distribution is unlimited The naval tactical nuclear weapons that the US Navy has in storage neither provide adequate deterrence nor increased warfighting capability. If the US and the USSR eliminated these weapons the US Navy would be in a more dominant position compared to the Soviets. With both the US and USSR announcing unilateral removal of their tactical nuclear weapons from naval units, while at the same time maintaining them in storage, the US has tac...

  20. Carrot, stick, or sledgehammer: U.S. policy options for North Korean nuclear weapons

    OpenAIRE

    Orcutt, Daniel J.

    2004-01-01

    Approved for public release, distribution is unlimited North Korea's pursuit of nuclear weapons has shaken the foundations of U.S. policy in Northeast Asia. Because of North Korea's record of state-sponsored terrorism, illicit activities, human rights violations, arms sales, and fiery rhetoric, its development of operational nuclear weapons is deeply disturbing. Although most agree North Korea should not possess nuclear weapons, nobody has a solution. This thesis evaluates three U.S. polic...

  1. Security after the revolutions of 1989 and 1991: The future with nuclear weapons

    Energy Technology Data Exchange (ETDEWEB)

    Weber, S. [Univ. of California, Berkeley, CA (United States)

    1992-12-31

    Political scientists typically view weapons within the realm of effects, not within the realm of cause. That is, weapons are a consequence of the great causal factors in international relations. Insecurity is the most important of these factors; it follows from the uneven distribution of power among states, the security dilemma, and the ever-present possibility that violence will be used to settle disagreements because there is no higher authority above states capable of enforcing rules. According to this logic weapons cause neither war nor peace. They are simply tools that states use to gain a share of the scarcest commodity - security - by fighting other states or by threatening to do so if necessary. Nuclear weapons are a product of great industrial capabilities, knowledge, and other resources. The United States and the Soviet Union had the largest arsenals of nuclear weapons because they were superpowers, not the other way around. On this logic, nuclear weapons reflect and reinforce a distribution of power that would exist in their absence. As the distribution of power among states changes, the status of nuclear weapons in the world will also change in a way that reflects the more fundamental causes that continue to drive state-state relationships in an anarchic world. In this chapter the author treat nuclears weapons within the realm of great causes. Arguing that nuclear weapons were a fundamental cause in bringing the Cold War, and with it the last vestiges of bipolarity, to an end. International life in the 1990s will not be the same as it was between 1945 and 1989. Will it be more like the multipolar world of the 1800s, with nuclear weapons simply grafted on the way other new weapons innovations have been in the past? That is not expected because nuclear weapons have altered the fundamental causal forces that drove previous international systems from peace to war and back again. 21 refs.

  2. Circumstances around weapon injury in Cambodia after departure of a peacekeeping force: prospective cohort study

    Science.gov (United States)

    Meddings, David R; O’Connor, Stephanie M

    1999-01-01

    Objective To examine the circumstances surrounding weapon injury and combatant status of those injured by weapons. Design Prospective cohort study. Setting Northwestern Cambodia after departure of United Nations peacekeeping force. Subjects 863 people admitted to hospital for weapon injuries over 12 months. Main outcome measures Annual incidence of weapon injury by time period; proportions of injuries inflicted as a result of interfactional combat (combat injuries) and outside such combat (non-combat injuries) by combatant status and weapon type. Results The annual incidence of weapon injuries was higher than the rate observed before the peacekeeping operation. 30% of weapon injuries occurred in contexts other than interfactional combat. Most commonly these were firearm injuries inflicted intentionally on civilians. Civilians accounted for 71% of those with non-combat injuries, 42% of those with combat related injuries, and 51% of those with weapon injuries of either type. Conclusions The incidence of weapon injuries remained high when the disarmament component of a peacekeeping operation achieved only limited success. Furthermore, injuries occurring outside the context of interfactional combat accounted for a substantial proportion of all weapon injuries, were experienced disproportionately by civilians, and were most likely to entail the intentional use of a firearm against a civilian. Key messagesThe study took place in Cambodia after a United Nations peacekeeping operation that achieved only limited success in disarmamentA substantial proportion of weapon injuries was inflicted in contexts unrelated to interfactional combatThese injuries were most commonly firearm injuries inflicted intentionally on civiliansWidespread availability of weapons can facilitate social violence PMID:10445922

  3. A Conceptual Model to Identify Intent to Use Chemical-Biological Weapons

    Directory of Open Access Journals (Sweden)

    Mary Zalesny

    2017-10-01

    Full Text Available This paper describes a conceptual model to identify and interrelate indicators of intent of non-state actors to use chemical or biological weapons. The model expands on earlier efforts to understand intent to use weapons of mass destruction by building upon well-researched theories of intent and behavior and focusing on a sub-set of weapons of mass destruction (WMD to account for the distinct challenges of employing different types of WMD in violent acts. The conceptual model is presented as a first, critical step in developing a computational model for assessing the potential for groups to use chemical or biological weapons.

  4. Microelectronic Status Analysis and Secondary Part Procureability Assessment of the THAAD Weapon System

    National Research Council Canada - National Science Library

    Maddux, Gary

    1999-01-01

    The Industrial Operations Division (IOD), SEPD, RDEC, AMCOM has the mission and function of providing microelectronic technology assessments, and producibility and supportability analyses for the THAAD weapon system...

  5. Microelectronic Status Analysis and Secondary Part Procureability Assessment of the THAAD Weapon System

    National Research Council Canada - National Science Library

    Maddux, Gary

    1999-01-01

    AMCOM required engineering support in performing microelectronic technology and availability assessments for several hundred items and in assessing the impact of nonavailability on the THAAD weapon system...

  6. Examination of Economic Feasibility of Nuclear Weapons in the Republic of Korea

    Energy Technology Data Exchange (ETDEWEB)

    Suh, Young A; Yim, Man Sung [Korea Advanced Institute of Science and Technology, Daejeon (Korea, Republic of)

    2015-05-15

    This observation implies that the popular view on nuclear weapons amongst Korean public is in part due to lack of knowledge about overall implications of possessing nuclear weapons. In this regard, pros and cons of nuclear weapons development need to be better characterized and understood by the public to support nuclear nonproliferation culture development. Noting lack of literature on characterizing the economics of nuclear weapons development, this study aims at performing economic feasibility analysis of nuclear weapons development in the ROK. For this purpose, an approach called Index technique based on the US experiences was applied to Korean historical data along with cost-benefit analysis and Multi-Criteria Decision Making Analysis. In this study, the scenario of nuclear weapons development against North Korean nuclear threat was compared with conventional weapons-based defense strategy. The comparison was based on cost benefit analysis and qualitative multi-criteria decision analysis. Results indicate that nuclear weapons development is not a desirable option. However, as this work was a rather simplistic academic exercise, further work is needed to support the outcome of the study. Outcome of these investigations would be useful for communication with the public regarding the need for nuclear weapons for national defense and to develop nuclear nonproliferation culture in the ROK.

  7. Proliferation dangers associated with nuclear medicine: getting weapons-grade uranium out of radiopharmaceutical production.

    Science.gov (United States)

    Williams, Bill; Ruff, Tilman A

    2007-01-01

    Abolishing the threat of nuclear war requires the outlawing of nuclear weapons and dismantling current nuclear weapon stockpiles, but also depends on eliminating access to fissile material (nuclear weapon fuel). The near-universal use of weapons-grade, highly enriched uranium (HEU) to produce radiopharmaceuticals is a significant proliferation hazard. Health professionals have a strategic opportunity and obligation to progress the elimination of medically-related commerce in HEU, closing one of the most vulnerable pathways to the much-feared 'terrorist bomb'.

  8. A HOST PHASE FOR THE DISPOSAL OF WEAPONS PLUTONIUM

    Energy Technology Data Exchange (ETDEWEB)

    WERNER LUTZE; K. B. HELEAN; W. L. GONG - UNIVERSITY OF NEW MEXICO RODNEY C. EWING - UNIVERSITY OF MICHIGAN

    1999-01-01

    Research was conducted into the possible use of zircon (ZrSiO{sub 4}) as a host phase for storage or disposal of excess weapons plutonium. Zircon is one of the most chemically durable minerals. Its structure can accommodate a variety of elements, including plutonium and uranium. Natural zircon contains uranium and thorium together in different quantities, usually in the range of less than one weight percent up to several weight percent. Zircon occurs in nature as a crystalline or a partially to fully metamict mineral, depending on age and actinide element concentration, i.e., on radiation damage. These zircon samples have been studied extensively and the results are documented in the literature in terms of radiation damage to the crystal structure and related property changes, e.g., density, hardness, loss of uranium and lead, etc. Thus, a unique suite of natural analogues are available to describe the effect of decay of {sup 239}Pu on zircon's structure and how zircon's physical and chemical properties will be affected over very long periods of time. Actually, the oldest zircon samples known are over 3 billion years old. This period covers the time for decay of {sup 239}Pu (half-life 24,300 yr.) and most of its daughter {sup 235}U (half-life 700 million yr.). Because of its chemical durability, even under extreme geological conditions, zircon is the most widely used mineral for geochronological dating (7,000 publications). It is the oldest dated mineral on earth and in the universe. Zircon has already been doped with about 10 weight percent of plutonium. Pure PuSiO{sub 4} has also been synthesized and has the same crystal structure as zircon. However, use of zircon as a storage medium or waste form for plutonium requires further materials characterization. Experiments can either be conducted in laboratories where plutonium can be handled or plutonium can be simulated by other elements, and experiments can be done under less restricted conditions. The

  9. Tactical weapons algorithm development for unitary and fused systems

    Science.gov (United States)

    Talele, Sunjay E.; Watson, John S.; Williams, Bradford D.; Amphay, Sengvieng A.

    1996-06-01

    A much needed capability in today's tactical Air Force is weapons systems capable of precision guidance in all weather conditions against targets in high clutter backgrounds. To achieve this capability, the Armament Directorate of Wright Laboratory, WL/MN, has been exploring various seeker technologies, including multi-sensor fusion, that may yield cost effective systems capable of operating under these conditions. A critical component of these seeker systems is their autonomous acquisition and tracking algorithms. It is these algorithms which will enable the autonomous operation of the weapons systems in the battlefield. In the past, a majority of the tactical weapon algorithms were developed in a manner which resulted in codes that were not releasable to the community, either because they were considered company proprietary or competition sensitive. As a result, the knowledge gained from these efforts was not transitioning through the technical community, thereby inhibiting the evolution of their development. In order to overcome this limitation, WL/MN has embarked upon a program to develop non-proprietary multi-sensor acquisition and tracking algorithms. To facilitate this development, a testbed has been constructed consisting of the Irma signature prediction model, data analysis workstations, and the modular algorithm concept evaluation tool (MACET) algorithm. All three of these components have been enhanced to accommodate both multi-spectral sensor fusion systems and the there dimensional signal processing techniques characteristic of ladar. MACET is a graphical interface driven system for rapid prototyping and evaluation of both unitary and fused sensor algorithms. This paper describes the MACET system and specifically elaborates on the three-dimensional capabilities recently incorporated into it.

  10. Controlling weapons of mass destruction through the rule of law

    Energy Technology Data Exchange (ETDEWEB)

    Tanzman, E.A.

    1995-08-08

    Many who speak of the end of the Cold War emphasize the improvement in international relations when they speak of the momentous consequences of this event. According to this image, the half century since Trinity has been a period of sparse international communication during which the Eastern and Western blocs hibernated in their isolated dens of security alliances. The emphasis in the phrase ``Cold War`` was on the word ``cold,`` and relations with the former Communist regimes are now ``warm`` by comparison. It is equally valid to consider what has happened to the word ``was` in this highly descriptive phrase. While meaningful international dialogue was in a state of relative lethargy during much of the last fifty years, the military establishments of the Great Powers were actively engaged in using as much force as possible in their efforts to control world affairs, short of triggering a nuclear holocaust. Out of these military postures a tense peace ironically emerged, but the terms by which decisions were made about controlling weapons of mass destruction (i.e., nuclear, chemical, and biological weapons) were the terms of war. The thesis of this paper is that the end of the Cold War marks a shift away from reliance on military might toward an international commitment to controlling weapons,of mass destruction through the ``rule of law.`` Rawls wrote that ``legal system is a coercive order of public rules addressed to rational persons for the purpose of regulating their conduct and providing the framework for social cooperation. The regular and impartial administration of public rules, becomes the rule of law when applied to the legal system.`` Inparticular, Rawls identifies as part of this system of public rules those laws that aim to prevent free riders on the economic system and those that aim to correct such externalities as environmental pollution.``

  11. Thermal hyperbolic metamaterials.

    Science.gov (United States)

    Guo, Yu; Jacob, Zubin

    2013-06-17

    We explore the near-field radiative thermal energy transfer properties of hyperbolic metamaterials. The presence of unique electromagnetic states in a broad bandwidth leads to super-planckian thermal energy transfer between metamaterials separated by a nano-gap. We consider practical phonon-polaritonic metamaterials for thermal engineering in the mid-infrared range and show that the effect exists in spite of the losses, absorption and finite unit cell size. For thermophotovoltaic energy conversion applications requiring energy transfer in the near-infrared range we introduce high temperature hyperbolic metamaterials based on plasmonic materials with a high melting point. Our work paves the way for practical high temperature radiative thermal energy transfer applications of hyperbolic metamaterials.

  12. Auditing nuclear weapons quality programs at Los Alamos

    Energy Technology Data Exchange (ETDEWEB)

    Davis, A.H.

    1988-01-01

    Some of the problems involved in introducing quality assurance on a broad scale in a national laboratory are discussed. A philosophy of how QA can be utilized beneficially in research and development activities is described briefly, and our experiences at Los Alamos in applying QA to nuclear weapons activities are outlines. The important role of audits is emphasized; audits are used not merely to determine the effectiveness of QA programs but also to explain and demonstrate the usefulness of QA to a generally sceptical body of engineers and scientists. Finally, some ways of easing the application of QA in the future are proposed. 1 ref.

  13. The effects of weapons of mass destruction on children.

    Science.gov (United States)

    Mueller, Carolyn R

    2006-04-01

    Children are especially vulnerable to the effects of chemical and biological weapons of mass destruction (WMD) because of physiologic, pharmacologic, and developmental characteristics. Presentation of signs and symptoms of exposure to biological and chemical agents are similar to those seen in adults. Pediatric considerations for decontamination and treatment of child victims of biological and chemical agents are discussed. As front-line providers, nurses need to be aware of potential agents, their uses and effects as WMD, and recommended treatments. Understanding the additional physiologic and situational needs of children, nurses can optimize the survival and outcomes of children when disaster strikes.

  14. Pharmacy preparedness for incidents involving weapons of mass destruction.

    Science.gov (United States)

    Burda, A M; Sigg, T

    2001-12-01

    Recent worldwide terrorist acts and hoaxes have heightened awareness that incidents involving weapons of mass destruction (WMD) may occur in the United States. With federal funding assistance, local domestic preparedness programs have been initiated to train and equip emergency services and emergency department personnel in the management of large numbers of casualties exposed to nuclear, biological, or chemical (NBC) agents. Hospital pharmacies will be required to provide antidotes, antibiotics, antitoxins, and other pharmaceuticals in large amounts and have the capability for prompt procurement. Pharmacists should become knowledgeable in drug therapy of NBC threats with respect to nerve agents, cyanide, pulmonary irritants, radionucleotides, anthrax, botulism, and other possible WMD.

  15. Modern Weapon-Guided Missile (Xiandai Wugi-Daodan)

    Science.gov (United States)

    1981-11-27

    mind - . . f b ... . " i• -- 4 a . f l - . a ..••’•’:,’ • ’ 2m • LIN The destructive power of a nucler payload comrea Crom the nuclear-energy...There are two conversion formns of nuclei: one is the fission of heavy nuclei, and the other is the fusion of light nuclei. The fission of heavy nuclei...ton TNT equivalent weight. The weapon 1ilizing fission of heavy nuclei is called an atomic bomb. The fusion of light nuclei is a process of light

  16. Specialized Undergraduate Navigator Training for Weapons Systems Officers

    Science.gov (United States)

    1978-06-09

    requirements. 6 RDTM became the vehicle that translates FYDP requirements into individual aircrew requirements and weapons systems training requirements...ifiedi, more knowlodgeable , and advanced iW4M) rinaduase 1’rorn u2X." T’AC wcsubi then receive tWhin newldy 52±,-duateouu ane(, beueOf htu~dvaned tate of...less sorties f’en- erated for training which translates into achieving combat ready status in less time. The cumulative results would be increased

  17. Analysis of macroscopic gunshot residues by Raman spectroscopy to assess the weapon memory effect.

    Science.gov (United States)

    López-López, María; Delgado, Juan Jose; García-Ruiz, Carmen

    2013-09-10

    Gunshot residues (GSR) are valuable evidence which provide the forensic analyst with useful information about a crime scene when proper analytical methods are used. Nowadays, the method of choice for analyzing GSR is scanning electron microscopy coupled with energy dispersive X-ray analysis (SEM/EDX). However, SEM/EDX presents limitations when the GSR identification of "non-toxic" ammunition types is performed. To overcome this drawback, Raman spectroscopy has been recently proposed as a complementary technique to SEM/EDX. However, for the time being, it can only be used in a limited number of casework (e.g. examining the macroscopic GSR produced at short distance over victim's clothes) and further research to know when this technique could support SEM-EDX results is required. In the present work, the memory effect of the weapon, which plays an important role to link the GSR found and the ammunition fired, is studied. Twenty shots were fired at close distance (~30 cm) at paper targets using the same weapon with two different types of ammunition. The first, third, ninth, and twentieth shots were fired with the first ammunition and the shots among them using the second ammunition. The macroscopic GSR produced by the first ammunition were analyzed using Raman spectroscopy. First, the spectra obtained were visually differentiated by taking into account the band at about 1342 cm(-1). This first approach shown that in the first shot were no GSR particles from the second ammunition, but 1.5-7.5% of analyzed particles corresponded to the second ammunition in the third, ninth, and twentieth shots. Additionally, the same differentiation was then performed by discriminant analysis using the spectral range from 1800 to 800 cm(-1). Although using this second approach only one GSR was identified as the second ammunition, was remarkable that after the shots with different ammunition the GSR obtained shows greater variability. The results obtained suggest that the memory effect of

  18. Advanced thermal management materials

    CERN Document Server

    Jiang, Guosheng; Kuang, Ken

    2012-01-01

    ""Advanced Thermal Management Materials"" provides a comprehensive and hands-on treatise on the importance of thermal packaging in high performance systems. These systems, ranging from active electronically-scanned radar arrays to web servers, require components that can dissipate heat efficiently. This requires materials capable of dissipating heat and maintaining compatibility with the packaging and dye. Its coverage includes all aspects of thermal management materials, both traditional and non-traditional, with an emphasis on metal based materials. An in-depth discussion of properties and m

  19. Firearm suppressor having enhanced thermal management for rapid heat dissipation

    Science.gov (United States)

    Moss, William C.; Anderson, Andrew T.

    2014-08-19

    A suppressor is disclosed for use with a weapon having a barrel through which a bullet is fired. The suppressor has an inner portion having a bore extending coaxially therethrough. The inner portion is adapted to be secured to a distal end of the barrel. A plurality of axial flow segments project radially from the inner portion and form axial flow paths through which expanding propellant gasses discharged from the barrel flow through. The axial flow segments have radially extending wall portions that define sections which may be filled with thermally conductive material, which in one example is a thermally conductive foam. The conductive foam helps to dissipate heat deposited within the suppressor during firing of the weapon.

  20. Analytical technique to address terrorist threats by chemical weapons of mass destruction

    Science.gov (United States)

    Dempsey, Patrick M.

    1997-01-01

    Terrorism is no longer an issue without effect on the American mind. We now live with the same concerns and fears that have been commonplace in other developed and third world countries for a long time. Citizens of other countries have long lived with the specter of terrorism and now the U.S. needs to be concerned and prepared for terrorist activities.T he terrorist has the ability to cause great destructive effects by focusing their effort on unaware and unprepared civilian populations. Attacks can range from simple explosives to sophisticated nuclear, chemical and biological weapons. Intentional chemical releases of hazardous chemicals or chemical warfare agents pose a great threat because of their ready availability and/or ease of production, and their ability to cause widespread damage. As this battlefront changes from defined conflicts and enemies to unnamed terrorists, we must implement the proper analytical tools to provide a fast and efficient response. Each chemical uses in a terrorists weapon leaves behind a chemical signature that can be used to identify the materials involved and possibly lead investigators to the source and to those responsible. New tools to provide fast and accurate detection for battlefield chemical and biological agent attack are emerging. Gas chromatography/mass spectrometry (GC/MS) is one of these tools that has found increasing use by the military to respond to chemical agent attacks. As the technology becomes smaller and more portable, it can be used by law enforcement personnel to identify suspected terrorist releases and to help prepare the response; define contaminated areas for evacuation and safety concerns, identify the proper treatment of exposed or affected civilians, and suggest decontamination and cleanup procedures.

  1. [The development of neurotoxic agents as chemical weapons during the National Socialist period in Germany].

    Science.gov (United States)

    López-Muñoz, F; Alamo, C; Guerra, J A; García-García, P

    The discovery and development of the so-called 'nerve agents' (neurotoxic substances to be used as weapons) took place in the Third Reich, largely thanks to the vast amount of progress being made in pharmacology in Germany at that time, both in academic and industrial terms. Furthermore, successive National Socialist governments set up a collaborative network made up of the academia, the chemical industry and military chiefs that also favoured this line of research. The first neurotoxic substance to be incorporated into the category of 'chemical warfare agent' did so almost wholly by chance. As part of the work being carried out on organophosphate-type pesticides and insecticides, Gerald Schrader, a chemist at the I.G. Farben company, synthesised tabun (ethyl N,N-dimethylphosphoramidocyanidate) and an incident involving accidental contamination of laboratory staff with this substance highlighted its potential toxicity. The same group of researchers later synthesised another substance with the same properties, sarin (isopropyl methylphosphonofluoridate). Both agents were studied for use as chemical weapons by Wolfgang Wirth. At the same time, a group led by Richard Kuhn, who won the Nobel Prize in Chemistry in 1938, synthesised pinacolyl methylphosphonofluoridate, otherwise known as soman. Pharmacological studies confirmed that the neurotoxic mechanism of action of these substances was the irreversible inhibition of the enzyme acetylcholinesterase, which is responsible for metabolising acetylcholine. Results also showed that an excess of this neurotransmitter led to a continuous over-stimulation of the cholinergic (nicotinic and muscarinic) receptors, which is what triggers the appearance of the wide range of symptoms of poisoning and their swift fatal effect.

  2. Nuclear weapons tests and environmental consequences: a global perspective.

    Science.gov (United States)

    Prăvălie, Remus

    2014-10-01

    The beginning of the atomic age marked the outset of nuclear weapons testing, which is responsible for the radioactive contamination of a large number of sites worldwide. The paper aims to analyze nuclear weapons tests conducted in the second half of the twentieth century, highlighting the impact of radioactive pollution on the atmospheric, aquatic, and underground environments. Special attention was given to the concentration of main radioactive isotopes which were released, such as ¹⁴C, ¹³⁷Cs, and ⁹⁰Sr, generally stored in the atmosphere and marine environment. In addition, an attempt was made to trace the spatial delimitation of the most heavily contaminated sites worldwide, and to note the human exposure which has caused a significantly increased incidence of thyroidal cancer locally and regionally. The United States is one of the important examples of assessing the correlation between the increase in the thyroid cancer incidence rate and the continental-scale radioactive contamination with ¹³¹I, a radioactive isotope which was released in large amounts during the nuclear tests carried out in the main test site, Nevada.

  3. Noninvasive detection of weapons of mass destruction using terahertz radiation

    Science.gov (United States)

    Campbell, Matthew B.; Heilweil, Edwin J.

    2003-08-01

    The growing and immediate threat of biological and chemical weapons has placed urgency on the development of chemical and biological warfare agent (CWA/BWA) screening devices. Specifically, the ability to detect CWA/BWA prior to deployment is paramount to mitigating the threat without exposing individuals to its effects. SPARTA, Inc. and NIST are currently investigating the feasibility of using far-infrared radiation, or terahertz (THz, 1 THz = 1012 Hz) radiation, to non-invasively detect biological and chemical agents, explosives and drugs/narcotics inside sealed containers. Small-to-medium sized molecules (3-100 atoms) in gas, liquid and solid phases consistently exhibit identifiable spectral features in the far-IR portion of the spectrum. Many compounds associated with weapons of mass destruction are made up of molecules of this size. The THz portion of the spectrum lies between visible light and radio waves, allowing for partial transmission of 0.3-10.0 THz (30-1000 μm, 10-330 cm-1) light through most common materials. Therefore, transmission measurements of THz light can potentially be used to non-invasively detect the presence of CWA/BWA, explosives and drugs in the pathway of a THz radiation beam.

  4. Corrosion and conservation of weapons and military equipment

    Directory of Open Access Journals (Sweden)

    Bore V. Jegdić

    2012-01-01

    Full Text Available This paper analyzed the conditions for the occurrence of corrosion processes on historically important weapons and military equipment made of steel during the period in outdoor environment. A considerable attention has been given to the characteristics of the most important corrosion products formed on the steel surface. The formation of akaganite, β-FeOOH is a sign of active corrosion under a layer of corrosion products. The conditions that cause the formation and regeneration of hydrochloric and sulphuric acid during the exposure to the elements were analyzed. The most often applied methods of diagnostics and procedures of removing active corrosion anions (desalination were described as well. The NaOH solution of certain pH values still has the most important application for the desalination process. The procedures for cleaning the surface before the application of protective coatings and the application of chemicals that transform rust into stable compounds were discussed. As protective coatings, different types of organic coatings plated on well-prepared steel surfaces were used and sometimes special types of waxes as well. This paper presents the results of the tests of corrosion products taken from the exhibits of weapons and military equipment from the Military Museum in Belgrade.

  5. An Important Issue: Non-Proliferation of Nuclear Weapons

    Science.gov (United States)

    Castellano, Doc

    2001-03-01

    Historic Facts and Philosophy: In August, 1947, I participated in a secret meeting concerning the validity and use of a hydrogen bomb. I vigorously supported a ``Super Manhattan Project" to build an ``H" bomb. My philosophy at the time was `bigger and better,' to ensure that no nation attacked the U.S. Our retaliation with ``H" bombs vs. ``A" bombs would be too overwhelming for any nation to risk attacking us should they obtain their own ``A" bombs. Thus, all nations would be forced to use diplomacy. I am older and wiser, and am now convinced that World Test Ban Treaties, non-proliferation of nuclear weapons, and space free of any military weapons is the best policy for all nations and humanity. With current nuclear testing at nearby Yucca Flats, Nevada, Vandenberg AF/Missile site, Cal Tech, etc., I therefore propose that our new APS California Division form a three-person committee to tabulate all pertinent data and submit it to a qualified expert for review and further action. Comments and suggestions are invited.

  6. Cylindrical millimeter-wave imaging technique for concealed weapon detection

    Science.gov (United States)

    Sheen, David M.; McMakin, Douglas L.; Hall, Thomas E.

    1998-03-01

    A novel cylindrical millimeter-wave imaging technique has been developed at the Pacific Northwest National Laboratory for the detection of metallic and non-metallic concealed weapons. This technique uses a vertical array of millimeter- wave antennas which is mechanically swept around a person in a cylindrical fashion. The wideband millimeter-wave data is mathematically reconstructed into a series of high- resolution images of the person being screened. Clothing is relatively transparent to millimeter-wave illumination,whereas the human body and concealed items are reflective at millimeter wavelengths. Differences in shape and reflectivity are revealed in the images and allow a human operator to detect and identify concealed weapons. A full 360 degree scan is necessary to fully inspect a person for concealed items. The millimeter-wave images can be formed into a video animation sequence in which the person appears to rotate in front of a fixed illumination source.This is s convenient method for presenting the 3D image data for analysis. This work has been fully sponsored by the FAA. An engineering prototype based on the cylindrical imaging technique is presently under development. The FAA is currently opposed to presenting the image data directly to the operator due to personal privacy concerns. A computer automated system is desired to address this problem by eliminating operator viewing of the imagery.

  7. Seaborne Delivery Interdiction of Weapons of Mass Destruction (WMD)

    Energy Technology Data Exchange (ETDEWEB)

    Glauser, H

    2011-03-03

    Over the next 10-20 years, the probability of a terrorist attack using a weapon of mass destruction (WMD) on the United States is projected to increase. At some point over the next few decades, it may be inevitable that a terrorist group will have access to a WMD. The economic and social impact of an attack using a WMD anywhere in the world would be catastrophic. For weapons developed overseas, the routes of entry are air and sea with the maritime vector as the most porous. Providing a system to track, perform a risk assessment and inspect all inbound marine traffic before it reaches US coastal cities thereby mitigating the threat has long been a goal for our government. The challenge is to do so effectively without crippling the US economy. The Portunus Project addresses only the maritime threat and builds on a robust maritime domain awareness capability. It is a process to develop the technologies, policies and practices that will enable the US to establish a waypoint for the inspection of international marine traffic, screen 100% of containerized and bulk cargo prior to entry into the US if deemed necessary, provide a palatable economic model for transshipping, grow the US economy, and improve US environmental quality. The implementation strategy is based on security risk, and the political and economic constraints of implementation. This article is meant to provide a basic understanding of how and why this may be accomplished.

  8. Teaching with the News: North Korea and Nuclear Weapons. Choices for the 21st Century.

    Science.gov (United States)

    Brown Univ., Providence, RI. Thomas J. Watson, Jr. Inst. for International Studies.

    In October 2002 North Korea admitted that it had been operating a secret nuclear weapons program in violation of international treaties and the 1994 Agreed Framework with the United States. North Korea also appeared to be taking steps to begin production of nuclear weapons and, according to U.S. officials, may have a missile that can hit…

  9. The Superpowers: Nuclear Weapons and National Security. Teacher's Guide. National Issues Forums in the Classroom.

    Science.gov (United States)

    Levy, Tedd

    This teacher's guide is designed to accompany the National Issues Forums'"The Superpowers: Nuclear Weapons and National Security." Activities and ideas are provided to challenge students to debate and discuss the United States-Soviet related issues of nuclear weapons and national security. The guide is divided into sections that…

  10. 36 CFR 327.13 - Explosives, firearms, other weapons and fireworks.

    Science.gov (United States)

    2010-07-01

    ... weapons and fireworks. 327.13 Section 327.13 Parks, Forests, and Public Property CORPS OF ENGINEERS... ADMINISTERED BY THE CHIEF OF ENGINEERS § 327.13 Explosives, firearms, other weapons and fireworks. (a) The... explosives or explosive devices of any kind, including fireworks or other pyrotechnics, is prohibited unless...

  11. Nuclear weapons and conflict transformation: the case of India-Pakistan. - Pbk ed.

    NARCIS (Netherlands)

    Khan, S.

    2010-01-01

    Introduction Part 1: Theory 1. Studies on Conflict Transformation 2. Scholarship on Ramifications of Nuclear Weapons Acquisition 3. Elucidating Conflict Transformation with Nuclear Weapons Part 2: The India-Pakistan Protracted Conflict 4. Life of the Protracted Conflict 5. Introduction of Nuclear

  12. Non-State actors’ pursuit of CBRN weapons: From motivation to potential humanitarian consequences

    NARCIS (Netherlands)

    Meulenbelt, S.E.; Nieuwenhuizen, M.S.

    2016-01-01

    This paper discusses non-State actors’ motivation and capacity to develop and use chemical, biological, radiological or nuclear (CBRN) improvised weapons in attacks, as well as the possible consequences of such use. Six types of groups have been identified as potential CBRN weapons users that may

  13. Identification of chemicals related to the chemical weapons convention during an interlaboratory proficiency test

    NARCIS (Netherlands)

    Hooijschuur, E.W.J.; Hulst, A.G.; Jong, A.L. de; Reuver, L.P. de; Krimpen, S.H. van; Baar, B.L.M. van; Wils, E.R.J.; Kientz, C.E.; Brinkman, U.A.Th

    2002-01-01

    In order to test the ability of laboratories to detect and identify chemicals related to the Chemical Weapons Convention (CWC), which prohibits the development, production, stockpiling and use of chemical weapons, and to designate laboratories for this task, the Technical Secretariat of the

  14. 32 CFR 552.104 - Disposition of confiscated/seized weapons.

    Science.gov (United States)

    2010-07-01

    ... Disposition of confiscated/seized weapons. All weapons, ammunition, explosives or other devices defined in... Investigation (FBI) for investigation, retention as evidence, or other lawful disposition. When retention for investigation or evidence is no longer required by military police, USACIDC, or other law enforcement or...

  15. 15 CFR Supplement No. 7 to Part 742 - Description of Major Weapons Systems

    Science.gov (United States)

    2010-01-01

    ... system for these weapons, including versions of these aircraft that perform specialized reconnaissance or... Air-Defense Systems (MANPADS); or (c) Unmanned Aerial Vehicles (UAVs) of any type, including sensors... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Description of Major Weapons Systems...

  16. 36 CFR 1280.18 - May I bring guns or other weapons onto NARA property?

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false May I bring guns or other weapons onto NARA property? 1280.18 Section 1280.18 Parks, Forests, and Public Property NATIONAL ARCHIVES... Conduct on NARA Property? Prohibited Activities § 1280.18 May I bring guns or other weapons onto NARA...

  17. Iran’s Growing Nuclear Weapons Program: A Catalyst for Regional Instability in the Middle East

    Science.gov (United States)

    1993-03-10

    military spending . This increase has been primarily in the area of conventional forces, however there is growing evidence that Iran is also attempting to develop a nuclear weapons capability as well. This study examines Iran’s nuclear weapons program in detail, and Tehran’s increasing ability to emerge as a regional power in the Middle

  18. Influence and selection processes in weapon carrying during adolescence : The roles of status, aggression, and vulnerability

    NARCIS (Netherlands)

    Dijkstra, Jan; Lindenberg, Siegwart; Veenstra, Rene; Steglich, Christian; Isaacs, Jenny; Card, Noel A.; Hodges, Ernest V. E.

    The role of peers in weapon carrying (guns, knives, and other weapons) inside and outside the school was examined in this study. Data stem from a longitudinal study of a high-risk sample of male students (7th to 10th grade; N = 167) from predominantly Hispanic low-socio-economic-status schools in

  19. Linking legacies: Connecting the Cold War nuclear weapons production processes to their environmental consequences

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-01-01

    In the aftermath of the Cold War, the US has begun addressing the environmental consequences of five decades of nuclear weapons production. In support of this effort, the National Defense Authorization Act for Fiscal Year 1995 directed the Department of Energy (DOE) to describe the waste streams generated during each step in the production of nuclear weapons. Accordingly, this report responds to this mandate, and it is the Department`s first comprehensive analysis of the sources of waste and contamination generated by the production of nuclear weapons. The report also contains information on the missions and functions of nuclear weapons facilities, on the inventories of waste and materials remaining at these facilities, as well as on the extent and characteristics of contamination in and around these facilities. This analysis unites specific environmental impacts of nuclear weapons production with particular production processes. The Department used historical records to connect nuclear weapons production processes with emerging data on waste and contamination. In this way, two of the Department`s legacies--nuclear weapons manufacturing and environmental management--have become systematically linked. The goal of this report is to provide Congress, DOE program managers, non-governmental analysts, and the public with an explicit picture of the environmental results of each step in the nuclear weapons production and disposition cycle.

  20. Predictors of Weapon Carrying in Youth Attending Drop-in Centers

    Science.gov (United States)

    Blumberg, Elaine J.; Liles, Sandy; Kelley, Norma J.; Hovell, Melbourne F.; Bousman, Chad A.; Shillington, Audrey M.; Ji, Ming; Clapp, John

    2009-01-01

    Objective: To test and compare 2 predictive models of weapon carrying in youth (n=308) recruited from 4 drop-in centers in San Diego and Imperial counties. Methods: Both models were based on the Behavioral Ecological Model (BEM). Results: The first and second models significantly explained 39% and 53% of the variance in weapon carrying,…

  1. Detection and treatment of chemical weapons and/or biological pathogens

    Science.gov (United States)

    Mariella Jr., Raymond P.

    2004-09-07

    A system for detection and treatment of chemical weapons and/or biological pathogens uses a detector system, an electrostatic precipitator or scrubber, a circulation system, and a control. The precipitator or scrubber is activated in response to a signal from the detector upon the detection of chemical weapons and/or biological pathogens.

  2. Cooperative Security: A New Paradigm For A World Without Nuclear Weapons?

    Directory of Open Access Journals (Sweden)

    Marc Finaud

    2013-11-01

    Full Text Available If there is a loose consensus on aiming at a world free of nuclear weapons in the future, there are clear oppositions as to the timeframe as well as the means for achieving this goal. The approach to nuclear disarmament followed to date has only yielded limited success because it has been conceived in isolation from global and regional security environments and threat perceptions. A new paradigm should thus be sought in order to reconcile nuclear powers’ security doctrines with global aspirations for a safer world, and ensure that nuclear powers derive their security less from others’ insecurity but from mutually beneficial cooperative security. This should not become a pretext for preserving nuclear weapons for ever. It will on the contrary require parallel tracks addressing the initial motivations for acquiring nuclear weapons and other weapons of mass destruction (WMD, in particular in the context of regional conflicts, as well as dealing with the current issues necessarily related to nuclear disarmament (missile defence, weaponization of space, conventional imbalances and future weapon systems. Ultimately, in a globalised nuclear-weapon free world, state security will not require nuclear weapons because it will be inserted into a broader network encompass­ing all aspects of security addressed in cooperative and multilateral approaches.

  3. Aggression and attitudes to time and risk in weapon-using violent offenders.

    Science.gov (United States)

    Brennan, Iain R; Moore, Simon C; Shepherd, Jonathan P

    2010-08-15

    The use of weapons in violence increases both the severity of harm to victims and the severity of legal consequences for offenders, but little is known of the characteristics of violent offenders who choose to use weapons. Levels of anger, attitude to risk, time discounting, and antisocial history among a sample of weapon-using violent offenders (n=15) were compared to violent offenders who had not used a weapon (n=10) and nonviolent offenders (n=15). Results showed that weapon-using violent offenders displayed greater trait aggression and were more risk seeking than other offender types. In addition, weapon-using violent offenders were first convicted at an earlier age and truanted from school more frequently compared to other offender types. The results indicate that weapon users are more aggressive and more risk taking, but no more present focused than other violent and nonviolent offenders. Further research into the cognitive and social factors that influence weapon use is required if this dangerous behavior is to be reduced. Copyright (c) 2009 Elsevier Ireland Ltd. All rights reserved.

  4. Measures of Effectiveness for Non-Lethal Weapons: Aligning Behavioral Experiments with Operational Success

    Science.gov (United States)

    2015-01-01

    Eastern exit: The noncombatant evacuation operation (NEO) from Mogadishu, Somalia, in January 1991 ( CRM 91-211). Alexandria, VA: Center for Naval...Measures of Effectiveness for Non- Lethal Weapons: Aligning Behavioral Experiments with Operational Success Shelley Cazares James Belanich Jeffrey A...Weapons: Aligning Behavioral Experiments with Operational Success Shelley Cazares, James Belanich, Jeffrey A. Snyder, P. M. Picucci, Jenny R. Holzer

  5. Trends in weapon-related injuries from violence in Odense Municipality, Denmark 1991-2009

    DEFF Research Database (Denmark)

    Møller Luef, Stefan; Lauritsen, Jens Martin; Faergemann, Christian

    2016-01-01

    INTRODUCTION: The aim of this study was to examine the development in incidence rates and the severity of weapon-related physical interpersonal violence in Odense Municipality, Denmark from 1991 to 2009. METHODS: All victims of physical interpersonal violence with weapon-related injuries treated...... at the Emergency Department in the 1991-2009 period at Odense University Hospital, Denmark, and/or subjected to medico-legal autopsy at the Institute of Forensic Medicine in the 1991-2009 period at the University of Southern Denmark were included. Incidence rates were estimated following stratification by gender...... rate was 4.8 per 1,000 victims in males and 29.1 per 1,000 victims in females. More than half (57%) of the homicides were caused by lesions due to sharp weapons. CONCLUSION: Weapon-related injuries are rare in the Odense Municipality. The incidence rate of weapon-related violence did not increase...

  6. Infantry Weapons Test Methodology Study. Volume V. Indirect Fire Weapons Test Methodology.

    Science.gov (United States)

    1972-06-01

    voice data. Test participants, in this instance, would be required to indicate the occur- rence of events by identifiable vocal signal. A third me- thod...V - (as - l)(i - O)(1 - S) a<O, 3ɘ or else shot landed outside of rango u 2 ɘ or v2 ɘ - > aS - 1ɘ - > shot landed outside of range i- kl>0 1 -3N

  7. Extraction and derivatization of chemical weapons convention relevant aminoalcohols on magnetic cation-exchange resins.

    Science.gov (United States)

    Singh, Varoon; Garg, Prabhat; Chinthakindi, Sridhar; Tak, Vijay; Dubey, Devendra Kumar

    2014-02-14

    Analysis and identification of nitrogen containing aminoalcohols is an integral part of the verification analysis of chemical weapons convention (CWC). This study was aimed to develop extraction and derivatization of aminoalcohols of CWC relevance by using magnetic dispersive solid-phase extraction (MDSPE) in combination with on-resin derivatization (ORD). For this purpose, sulfonated magnetic cation-exchange resins (SMRs) were prepared using magnetite nanoparticles as core, styrene and divinylbenzene as polymer coat and sulfonic acid as acidic cation exchanger. SMRs were successfully employed as extractant for targeted basic analytes. Adsorbed analytes were derivatized with hexamethyldisilazane (HMDS) on the surface of extractant. Derivatized (silylated) compounds were analyzed by GC-MS in SIM and full scan mode. The linearity of the method ranged from 5 to 200ngmL(-1). The LOD and LOQ ranged from 2 to 6ngmL(-1) and 5 to 19ngmL(-1) respectively. The relative standard deviation for intra-day repeatability and inter-day intermediate precision ranged from 5.1% to 6.6% and 0.2% to 7.6% respectively. Recoveries of analytes from spiked water samples from different sources varied from 28.4% to 89.3%. Copyright © 2014 Elsevier B.V. All rights reserved.

  8. Tonopah test range - outpost of Sandia National Laboratories

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, L.

    1996-03-01

    Tonopah Test Range is a unique historic site. Established in 1957 by Sandia Corporation, Tonopah Test Range in Nevada provided an isolated place for the Atomic Energy Commission to test ballistics and non-nuclear features of atomic weapons. It served this and allied purposes well for nearly forty years, contributing immeasurably to a peaceful conclusion to the long arms race remembered as the Cold War. This report is a brief review of historical highlights at Tonopah Test Range. Sandia`s Los Lunas, Salton Sea, Kauai, and Edgewood testing ranges also receive abridged mention. Although Sandia`s test ranges are the subject, the central focus is on the people who managed and operated the range. Comments from historical figures are interspersed through the narrative to establish this perspective, and at the end a few observations concerning the range`s future are provided.

  9. Plus c`est la meme chose: The future of nuclear weapons in Europe

    Energy Technology Data Exchange (ETDEWEB)

    Maaranen, S.A.

    1996-07-01

    Since the end of the Cold War, the United States perhaps more than any other nuclear weapon state has deeply questioned the future role of nuclear weapons, both in a strategic sense and in Europe. It is probably the United States that has raised the most questions about the continuing need for and efficacy of nuclear weapons, and has expressed the greatest concerns about the negative consequences of continuing nuclear weapons deployment. In the US, this period of questioning has now come to a pause, if not a conclusion. In late 1994 the United States decided to continue to pursue reductions in numbers of nuclear weapons as well as other changes designed to reduce the dangers associated with the possession of nuclear weapons. But at the same time the US concluded that some number of nuclear forces would continue to be needed for national security for the foreseeable future. These necessary nuclear forces include a continuing but greatly reduced stockpile of nuclear bombs deployed in Europe under NATO`s New Strategic Concept. If further changes to the US position on nuclear weapons in Europe are to occur, it is likely to be after many years, and only in the context of dramatic additional improvements in the political and geo-political climate in and around Europe. The future role of nuclear weapons in Europe, as discussed in this report, depends in part on past and future decisions by the United States. but it must also be noted that other states that deploy nuclear weapons in Europe--Britain, France, and Russia, as well as the NATO alliance--have shown little inclination to discontinue their deployment of such weapons, whatever the United States might choose to do in the future.

  10. How to Make Historical Surveys of Nonproliferation of Nuclear Weapons

    Energy Technology Data Exchange (ETDEWEB)

    Jonter, Thomas [Stockholm Univ. (Sweden). Dept. of Economic History

    2003-05-01

    In 1998 SKI initiated a project in order to make a historical survey of the Swedish nuclear weapons research during the period 1945-2000. The survey is now fulfilled and contains of three reports. IAEA became interested in the project and accepted it in 2000 as a support program to increase transparency and to support the implementation of the Additional Protocol in Sweden. In the eyes of IAEA, the most important aim is to create knowledge and refine tools to enhance the means to strengthen the Safeguard System within the Additional Protocol. Other countries have now showed interest to follow the Swedish example and to make their own reviews of the nuclear energy and nuclear weapons research of their pasts. A co-operation between Sweden, Estonia, Finland, Lithuania and Latvia has now been initiated in order to make such historical reviews. The Swedish Nuclear Power Inspectorate is the initiator and financial supporter of the project. The cooperation project has three comprehensive goals: a. to create transparency in the nuclear energy field of the past. The intention is that the results of the conducted studies could be attached to the State Declaration according to the Additional Protocol in order to enhance transparency b. to account for the nuclear material traffic of the past and; c. to develop the competence in nuclear energy matters in general, and in particular, to extend the knowledge regarding each participating State's nuclear experience in the past. The first purpose of this paper is to describe the project and its aims. The second purpose is to present a general model of how a historical review of a State's nuclear related activities and nuclear weapons research can be designed. The model has been created in order to serve as a guide for other countries strengthening of their safeguards systems in the framework of the Additional Protocol. The third purpose is to present the pedagogy that has been used as a teaching method in order to train

  11. Thermal properties of nanofluids.

    Science.gov (United States)

    Philip, John; Shima, P D

    2012-11-15

    Colloidal suspensions of fine nanomaterials in the size range of 1-100 nm in carrier fluids are known as nanofluids. For the last one decade, nanofluids have been a topic of intense research due to their enhanced thermal properties and possible heat transfer applications. Miniaturization and increased operating speeds of gadgets warranted the need for new and innovative cooling concepts for better performance. The low thermal conductivity of conventional heat transfer fluid has been a serious impediment for improving the performance and compactness of engineering equipments. Initial studies on thermal conductivity of suspensions with micrometer-sized particles encountered problems of rapid settling of particles, clogging of flow channels and increased pressure drop in the fluid. These problems are resolved by using dispersions of fine nanometer-sized particles. Despite numerous experimental and theoretical studies, it is still unclear whether the thermal conductivity enhancement in nanofluids is anomalous or within the predictions of effective medium theory. Further, many reports on thermal conductivity of nanofluids are conflicting due to the complex issues associated with the surface chemistry of nanofluids. This review provides an overview of recent advances in the field of nanofluids, especially the important material properties that affect the thermal properties of nanofluids and novel approaches to achieve extremely high thermal conductivities. The background information is also provided for beginners to better understand the subject. Copyright © 2012 Elsevier B.V. All rights reserved.

  12. Computational modeling of blast exposure associated with recoilless weapons combat training

    Science.gov (United States)

    Wiri, S.; Ritter, A. C.; Bailie, J. M.; Needham, C.; Duckworth, J. L.

    2017-11-01

    Military personnel are exposed to blast as part of routine combat training with shoulder-fired recoilless rifles. These weapons fire large-caliber ammunitions capable of disabling structures and uparmored vehicles (e.g., tanks). Scientific, medical, and military leaders are beginning to recognize the blast overpressure from these shoulder-fired weapons may result in acute and even long-term physiological effects to military personnel. However, the back blast generated from the Carl Gustav and Shoulder-launched Multipurpose Assault Weapon (SMAW) shoulder-fired weapons on the weapon operator has not been quantified. By quantifying and modeling the full-body blast exposure from these weapons, better injury correlations can be constructed. Blast exposure data from the Carl Gustav and SMAW were used to calibrate a propellant burn source term for computational simulations of blast exposure on operators of these shoulder-mounted weapon systems. A propellant burn model provided the source term for each weapon to capture blast effects. Blast data from personnel-mounted gauges during weapon firing were used to create initial, high-fidelity 3D computational fluid dynamic simulations using SHAMRC (Second-order Hydrodynamic Automatic Mesh Refinement Code). These models were then improved upon using data collected from static blast sensors positioned around the military personnel while weapons were utilized in actual combat training. The final simulation models for both the Carl Gustav and SMAW were in good agreement with the data collected from the personnel-mounted and static pressure gauges. Using the final simulation results, contour maps were created for peak overpressure and peak overpressure impulse experienced by military personnel firing the weapon as well as those assisting with firing of those weapons. Reconstruction of the full-body blast loading enables a more accurate assessment of the cause of potential mechanisms of injury due to air blast even for subjects not

  13. Computational modeling of blast exposure associated with recoilless weapons combat training

    Science.gov (United States)

    Wiri, S.; Ritter, A. C.; Bailie, J. M.; Needham, C.; Duckworth, J. L.

    2017-09-01

    Military personnel are exposed to blast as part of routine combat training with shoulder-fired recoilless rifles. These weapons fire large-caliber ammunitions capable of disabling structures and uparmored vehicles (e.g., tanks). Scientific, medical, and military leaders are beginning to recognize the blast overpressure from these shoulder-fired weapons may result in acute and even long-term physiological effects to military personnel. However, the back blast generated from the Carl Gustav and Shoulder-launched Multipurpose Assault Weapon (SMAW) shoulder-fired weapons on the weapon operator has not been quantified. By quantifying and modeling the full-body blast exposure from these weapons, better injury correlations can be constructed. Blast exposure data from the Carl Gustav and SMAW were used to calibrate a propellant burn source term for computational simulations of blast exposure on operators of these shoulder-mounted weapon systems. A propellant burn model provided the source term for each weapon to capture blast effects. Blast data from personnel-mounted gauges during weapon firing were used to create initial, high-fidelity 3D computational fluid dynamic simulations using SHAMRC (Second-order Hydrodynamic Automatic Mesh Refinement Code). These models were then improved upon using data collected from static blast sensors positioned around the military personnel while weapons were utilized in actual combat training. The final simulation models for both the Carl Gustav and SMAW were in good agreement with the data collected from the personnel-mounted and static pressure gauges. Using the final simulation results, contour maps were created for peak overpressure and peak overpressure impulse experienced by military personnel firing the weapon as well as those assisting with firing of those weapons. Reconstruction of the full-body blast loading enables a more accurate assessment of the cause of potential mechanisms of injury due to air blast even for subjects not

  14. Coding ethical behaviour: the challenges of biological weapons.

    Science.gov (United States)

    Rappert, Brian

    2003-10-01

    Since 11 September 2001 and the anthrax attacks that followed in the US, public and policy concerns about the security threats posed by biological weapons have increased significantly. With this has come an expansion of those activities in civil society deemed as potential sites for applying security controls. This paper examines the assumptions and implications of national and international efforts in one such area: how a balance or integration can take place between security and openness in civilian biomedical research through devising professional codes of conduct for scientists. Future attempts to establish such codes must find a way of reconciling or at least addressing dilemmatic and tension-ridden issues about the appropriateness of research; a topic that raises fundamental questions about the position of science within society.

  15. Worldwide fallout of plutonium from nuclear weapons tests

    Energy Technology Data Exchange (ETDEWEB)

    Holleman, J.W.; Quiggins, P.A.; Chilton, B.D.; Uziel, M.S.; Pfuderer, H.A.; Longmire, J.A.

    1987-03-01

    Measurements of /sup 238/Pu and /sup 239,240/Pu fallout from nuclear weapons tests and the SNAP-9A navigational satellite burnup are presented for the years through 1980. Data abstracted from the literature were taken from the stratosphere, atmosphere, and from deposition and surface soil. Over 7300 data entries are included in the 23 tables. The tables are sorted by medium (stratosphere, atmosphere, and deposition near the surface and soil, nuclide, hemisphere, and longitude going from west to east, and are arranged in chronological order. Latitudes are also provided. Fallout levels in SI units (becquerels), calculated from the original readings, and the references from which the original data were taken are given in the report. The appendix is a map showing the various sites from which data were obtained.

  16. Advances in Neuroscience and the Biological and Toxin Weapons Convention

    Directory of Open Access Journals (Sweden)

    Malcolm Dando

    2011-01-01

    Full Text Available This paper investigates the potential threat to the prohibition of the hostile misuse of the life sciences embodied in the Biological and Toxin Weapons Convention from the rapid advances in the field of neuroscience. The paper describes how the implications of advances in science and technology are considered at the Five Year Review Conferences of the Convention and how State Parties have developed their appreciations since the First Review Conference in 1980. The ongoing advances in neurosciences are then assessed and their implications for the Convention examined. It is concluded that State Parties should consider a much more regular and systematic review system for such relevant advances in science and technology when they meet at the Seventh Review Conference in late 2011, and that neuroscientists should be much more informed and engaged in these processes of protecting their work from malign misuse.

  17. LANL: Weapons Infrastructure Briefing to Naval Reactors, July 18, 2017

    Energy Technology Data Exchange (ETDEWEB)

    Chadwick, Frances [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2018-07-18

    Presentation slides address: The Laboratory infrastructure supports hundreds of high hazard, complex operations daily; LANL’s unique science and engineering infrastructure is critical to delivering on our mission; LANL FY17 Budget & Workforce; Direct-Funded Infrastructure Accounts; LANL Org Chart; Weapons Infrastructure Program Office; The Laboratory’s infrastructure relies on both Direct and Indirect funding; NA-50’s Operating, Maintenance & Recapitalization funding is critical to the execution of the mission; Los Alamos is currently executing several concurrent Line Item projects; Maintenance @ LANL; NA-50 is helping us to address D&D needs; We are executing a CHAMP Pilot Project at LANL; G2 = Main Tool for Program Management; MDI: Future Investments are centered on facilities with a high Mission Dependency Index; Los Alamos hosted first “Deep Dive” in November 2016; Safety, Infrastructure & Operations is one of the most important programs at LANL, and is foundational for our mission success.

  18. Medical experimentation concerning chemical and biological weapons for mass destruction.

    Science.gov (United States)

    Deutsch, Erwin

    2003-04-01

    This article is the text of a speech originally presented at the Second World Conference on Medical Ethics at Gijon, Spain, on 2 October 2002 under the title "Medical Experimentation Concerning Chemical and Biological Weapons for Mass Destruction: Clinical Design for New Smallpox Vaccines: Ethical and Legal Aspects." Experimentation on vaccines such as smallpox is subject to the usual ethical rules such as the need for informed consent. However, the participants will not often be at risk of catching the disease but expose themselves by taking part in the experimentation. Professor Deutsch explores the implications of this, including the position of vulnerable groups such as children, those with mental handicaps, and those acting under orders such as the miliary, the policy and fire officers.

  19. The Niulang Staff - A Cowhearding Stick as Weapon

    Directory of Open Access Journals (Sweden)

    Donald W. Cheung

    2012-07-01

    Full Text Available Yu Qi created the Niulang staff system about 300 years ago. He taught Xiao Side and the art was passed down within the Xiao family to the current grandmaster, Xiao Mingkui. The staff is about 1-meter long and incorporates techniques from both long and short weapons. The concept of yin and yang is central to Niulang staff practice, requiring a proper balance between defense and attack as well as softness and power. The staff always moves in a spiral motion and short explosive power is generated from the waist/kua of the body. Yi (intent and shen (spirit are central elements guiding the external movements. The Niulang staff art is designated in China as a major traditional wushu discipline for preservation and research.

  20. Psychological casualties resulting from chemical and biological weapons.

    Science.gov (United States)

    Romano, J A; King, J M

    2001-12-01

    This symposium addresses the complications encountered by medical planners when confronted by the use or threat of the use of weapons of mass destruction. The types of chemical warfare agents (CWA), their principal target organs, and physiological effects are discussed. We have reviewed the use of CWA in 20th century warfare and otherwise with emphasis on five cases: (1) use of sulfur mustard during World War I; (2) use by Italy against Ethiopia; (3) use in the Sino-Japanese War; (4) relatively well-studied use in the Iran-Iraq conflict; and (5) the use of sarin in the Tokyo subway terrorist incident. We reviewed the additional physiological and psychological consequences of their use and threat of use. Results from training and simulation are discussed. Finally, we present our conclusions derived from the analysis of these historical situations.