Missile Hit Research Articles

SIMULATION OF A POSSIBLE SMOKING ZONE IN A DESTROYED SHELTER

The purpose of the presented work is to create a model for calculating the process of the spread of dangerous fire factors and determining the effectiveness of various engineering and technical, organizational measures and means aimed at increasing the duration of people's stay in a civil defense building in the conditions of hostilities. The authors of the work conducted an analysis of scientific research in areas such as "Modeling of fire and analysis of smoke propagation at metro stations in different fire locations" and "Modeling of flame and smoke propagation in an underground garage under different ventilation conditions." The authors developed two scenarios of the spread of dangerous fire factors. The first scenario is the spread of fire hazards without taking into account ventilation other than open doorways. The second scenario is the spread of dangerous fire factors taking into account supply ventilation through three ventilation channels. The ventilation channels were assumed to have a diameter of 0.3048 m with a volumetric flow rate of 0.5 m3/s. The researchers determined the effectiveness of the ventilation in the PyroSim software during the blocking of escape routes in the shelter. The ventilation efficiency factor 1.351 or 135.1%. The authors conducted a simulation of the shelter after a missile hit and the destruction of the basement ceiling (floor of the first floor). The time of blocking the evacuation routes was determined according to various parameters in accordance with DSTU 8828:2019, namely visibility, temperature, concentration of oxygen oxide and carbon dioxide at a height of 1.7 m from the floor level. The work is the basis for the development of engineering and technical and organizational measures to increase the level of fire safety and ensure the safety of the population. Keywords: shelter, dangerous factors of fire, ventilation, evacuation, PyroSim.

Save the Ukrainian People First: They Carry their Culture in their Hearts

Save the Ukrainian People First: They Carry their Culture in their Hearts

Hierarchical Prediction of Infrared interference Environment based on Mutual Information and Random Forest

In order to realize the classification prediction of environment in the process of combat, we set up the classification prediction model. First, we divided data set into blocks because of the big scale, wide range of influencing factors and strong nonlinear relationship among them. The missile hit rate is reflected in the miss distance, clustering each block data to analysis the correlation factors that affect the miss distance. Second, according to the mutual information theory, the strong correlation factors affecting the miss distance are identified from three aspects which are throwing strategies, maneuver mode and the relative situation by calculating the mutual information matrix. Third, the strong correlation factors as the sample attributes of node splitting in the decision tree, a hierarchical prediction model of infrared interference environment is constructed. This method can better identify the strong correlation factors that affect the miss distance, and avoid the adverse impact on the classification prediction due to the difference of correlation factors. The results show that the method is suitable for the processing of miss distance data. The prediction accuracy of infrared interference environment classification is about 98%, and the generalization ability of the model is strong.

Identification of canonical neural events during continuous gameplay of an 8-bit style video game

Cognitive neuroscience suffers from a unique and pervasive problem of generalizability. Since neural findings are often interpreted in the context of a specific manipulation during a carefully controlled task, it is hard to transfer knowledge from one task to another. In this report we address problems of generalizability with two methodological advancements. First, we aimed to transcend status quo experimental procedures with a continuous, engaging task environment. To this end, we created a novel 8-bit style continuous space shooter video game that elicits a multitude of goal-oriented events, such as crashing into a wall or blowing up an enemy with a missile. Second, we aimed to objectively define the psychological significance of these events. To achieve this aim, we used pattern classification of EEG data to derive predictive weights from carefully controlled pre-game exemplar events (oddball target detection and gambling wins and losses) and transferred those weights to EEG activities during video game events. All major goal-oriented events (crashes into the wall, crashes into an enemy, missile hit on an enemy) had a significant between-task transfer bias towards oddball target weights in the time range of the canonical P3, indicating the presence of similar salience detection processes. Missile hits on an enemy were specifically identified as gambling wins, confirming the hypothesis that this goal-oriented event was appetitive. These findings suggest that it is possible to identify the contribution of canonical neural activities during otherwise ambiguous and uncontrolled task performance.

Early EMDR Intervention Following a Community Critical Incident: A Randomized Clinical Trial

The aim of this study was to investigate the efficacy of early eye movement desensitization and reprocessing (EMDR) intervention using the EMDR recent traumatic episode protocol (R-TEP) after a traumatic community event whereby a missile hit a building in a crowded area of a town. In a waitlist/delayed treatment parallel-group randomized controlled trial, 17 survivors with posttraumatic distress were treated with EMDR therapy using the R-TEP protocol. Volunteer EMDR practitioners conducted treatment on 2 consecutive days. Participants were randomly allocated to either immediate or waitlist/delayed treatment conditions. Assessments with Impact of Event Scale-Revised (IES-R) and the Patient Health Questionnaire (PHQ-9) brief depression inventory took place at pre- and posttreatment and at 3 months follow-up. At 1 week posttreatment, the scores of the immediate treatment group were significantly improved on the IES-R compared to the waitlist/delayed treatment group, who showed no improvement prior to their treatment. At 3 months follow-up, results on the IES-R were maintained and there was a significant improvement on PHQ-9 scores. This pilot study provides preliminary evidence, supporting the efficacy of EMDR R-TEP for reducing posttrauma stress among civilian victims of hostility, and shows that this model of intervention briefly augmenting local mental health services following large-scale traumatic incidents, using an EMDR intervention on 2 consecutive days may be effective.

Design of Second-Order Sliding Mode Guidance Law Based on the Nonhomogeneous Disturbance Observer

Considering the guidance problem of relative motion of missile target without the dynamic characteristics of missile autopilot in the interception planar, non-homogeneous disturbance observer is applied for finite-time estimation with respect to the target maneuvering affecting the guidance performance. Two guidance laws with finite-time convergence are designed by using a fast power rate reaching law and the prescribed sliding variable dynamics. The nonsingular terminal sliding mode surface is selected to improve dynamic characteristics of missile autopilot. Furthermore, the finite-time guidance law with dynamic delay characteristics is designed for the target maneuvering through adopting variable structure dynamic compensation. The simulation results demonstrate that, for different target maneuvering, the proposed guidance laws can restrain the sliding mode chattering problem effectively and make the missile hit the maneuvering target quickly and accurately with condition of corresponding assumptions.

Bush's Happy Performative

Before first smart bomb and first missile hit Iraq in March 2003, President George W. Bush's talk had already caused enormous, some say incalculable, damage. promise of a preemptive attack undermined a long-standing tradition governing U.S. foreign policy; United Nations was sidelined; stalwart allies were bullied and discarded; economic indicators plummeted; anxious U.S. citizens were told to create safe spaces with duct tape and bottled water. In this war that is not a but an invasion, Bush's main weapon is whatJ.L. Austin called the performative-language that acts. Declarations of war, contracts, curses-these are instances when saying something does something. words establish a contractual arrangement within specific framework or convention in which they are uttered. Unlike a constative, which states a fact, a performative masquerades; it is a disguised form that apes a statement of fact while operating as a deed done. Austin posited this difference between constatives and performatives: The constative utterance is true or false and performative is or (1962:54). Austin was not thinking about declarations of when he argued that performatives were either happy (carried through successfully) or unhappy (when they failed due to procedural or other errors). But here we are, nearly a half-century after Austin, faced with paradox of Bush's performative and untold damage it is accomplishing. In build-up to invasion, Bush's language acted. Claims, boasts, and declarations masqueraded as truths. All evidence to contrary was dismissed: U.N. Security Council had failed-[I]t has not lived up to its responsibilities; inspections didn't work; diplomacy had failed-[W]e are not dealing with peaceful men (Bush 2003). Even when threatened with elimination, Saddam Hussein refused to leave Iraq of his own volition. For a performative to function smoothly-to be happy-a series of conditions must be met. For starters, utterance needs to take place in context of an appropriate conventional framework. Next, words have to be uttered a person empowered to do so. Thus, in his 17 March 2oo3 address to nation, President of United States was set up in White House surrounded flags and official seals, reminding us that he is indeed person authorized to order an unauthorized war against Iraq: The tyrant will soon be gone. day of your liberation is near. This, Bush promised by oath

Error-correction problems in autism: evidence for a monitoring impairment?

With a task involving the launching of missiles at targets, Malenka et al. (1982) and C. Frith and Done (1989) showed that schizophrenic patients with delusions of alien control and auditory hallucinations were likely to leave erroneous responses uncorrected whose outcomes were not visible until the missile hit or failed to hit the target, while being able to correct visible errors adequately. This is consistent with an impairment in the central monitoring of action. Using a similar task, we found that children with autism were more likely than controls to fail to correct both kinds of error. Data are interpreted in terms of difficulties with constructing visual schemata for actions.

Casualties from Guided Missile Impact in Warships from Another Point of View

From Kamikaze to Exocet, by learning from history a tool for casualty calculation in modern naval warfare is available, indicating absolute casualty figures per SS guided missile hit. The figures 35 wounded and 30 killed per hit ought to be used.

Pressure Wave Injuries to the Nervous System Caused by High-energy Missile Extremity Impact: Part I. Local and Distant Effects on the Peripheral Nervous System—A Light and Electron Microscopic Study on Pigs

Pigs were used for studies of effects on the peripheral nervous tissue of pressure waves induced by impact and passage through the left thigh of high-energy missiles. The short-lasting pressure waves were demonstrated to move close to the speed of sound and to have a spectrum of high frequencies and large amplitudes. The sciatic nerve in the contralateral leg showed no hemorrhage or major deformation. Both immediately after the missile impact and after 48 hr the myelin sheaths in the contralateral sciatic nerve showed deformation. Myelin was bulging into the axon, dislocating the axoplasm. The nodes of Ranvier could be exposed to an increased extent. Electron microscopic examination revealed decreased number of microtubules immediately after the trauma, persisting even after 48 hr in the largest axon. Schwann cells showed, especially after 48 hr, signs of damage and swelling. Similar changes, although less extensive, were noticed in the phrenic nerves as well as in unmyelinated axons in both sciatic and phrenic nerves. It is concluded that a high-energy missile hit in the thigh of a pig, caused structurally demonstrable dislocations of myelin sheaths, and disarrangement of cytoskeleton and endoplasmic reticulum in axons as well as other signs of damage. The changes may interfere with the normal functions of peripheral and autonomic nerves.