EXECUTIVE SUMMARY This paper describes how an Enterprise infrastructure is supporting agility on two ARPA initiatives namely, RASSP (Rapid prototyping of Application Specific Signal Processors), and AM3 (Affordable Multi-Missile Manufacturing). The two programs involve several large enterprises linked electronically to form virtual enterprises and aiming to address the issues raised by the cons...

With the development of war, complexity missile weapon system has reached an unprecedented height, and traditional document-based design method can no longer meet overall requirements missile. At present, best practice strategy in field systems engineering is idea model-based engineering, which its unique advantages dealing with complex problems. It be used to improve efficiency missiles enhanc...

ecently a special Independent Research and Development project demonstrated that translator-based differential Global Positioning System (GPS) measurements can achieve a measurement accuracy of 2 cm in realistic missile intercept test environments. The project was initiated in recognition of a serious need an effective precision analysis capability for use in evaluating engagements and lethalit...

This paper develops a framework to determine the performance or reliability of a complex system. We consider a case study in missile reliability that focuses on the assessment of a high fidelity launch vehicle intended to emulate a ballistic missile threat. In particular, we address the case of how to make a system assessment when there are limited full-system tests. We address the development ...

introduction: screening of patients with anterior abdominal penetrating trauma in need for laparotomy is an important issue in management of these cases. this study aimed to compare the accuracy of abdominal wall ultrasonography (awu) and local wound exploration (lwe) in this regard. methods: this diagnostic accuracy study was conducted on ≥ 18 year-old patients presenting to emergency departme...

II. OVERVIEW The risk of intracranial infection among patients with PBI is high because of the presence of contaminated foreign objects, skin, hair, and bone fragments driven into the brain along the missile track. The presence of air sinus wounds or cerebrospinal fluid (CSF) fistulae may further increase the risk of infection. Since sulfa drugs were introduced just prior to World War II, all p...

A new kind of adaptive backstepping method is proposed for simplified missile model of pitch channel with time-varying and uncertain parameters. Backstepping control is an effective method for coping with system uncertainties. Adaptive method is integrated with backstepping method and a Lyapunov function is constructed to guarantee the whole system is stable. Through the theoretical analysis an...

A CASE OF CYSTIC TUMOUR; OPERATION. By G. D. MacReddie, Esq., Civil Surgeon, Uurdui. Jhubba Thakook, aged 35 years, was admitted into the Hurdui Dispensary on the 9th December, 1872, with a soft tumour, the size of an orange, at the back of the right elbow joint. He stated that eighteen years ago he received a bullet in his arm; a cicatrix about two inches higher up on the posterior aspect of t...

In missile guidance system, to reduce the interception “miss distance,” it is important to choose a suitable guidance law and navigation constant. This paper investigates and compares the system behavior of guidance laws under different navigation constants. Based on use of the adjoint technique, miss distance sensitivity analyses which consider the system noise, target step maneuver, initial h...

A novel now commonly used device in many countries called a "weed-wacker" is a mechanical rotating device with a cord used to trim lawns and grass. A case of a 14-year old boy with a false aneurysm of the brachial artery is presented; he sustained a missile injury by a piece of rusty steel projected by use of a weed wacker. Missile injuries by nail guns and bullets have been documented in the l...