Connector locking device

Slidable spring-loaded locking device eliminates need for safety wiring. Locking device is placed between the connector plug and connector receptacle. The threaded plug cannot vibrate loose because the insert is wedged into slots formed on the outer diameter of the receptacle

Stereochilus and S. marginatus

Number of Pages: 2Integrative BiologyGeological Science

JavaScript: Bringing Object-Level Security to the Browser

JavaScript has evolved from a simple language intended to give web browsers basic hinteraction into a fully featured dynamic language that allows the browser to become an application delivery platform. With innovations such as asynchronous JavaScript and XML (AJAX) and JavaScript Object Notation (JSON), JavaScript has become the de facto standard for creating interactive web applications. With its new found power and popularity, JavaScript has been the target of many attacks. In this paper, we present a framework that allows programmers to define secure properties of JavaScript objects such that they are more immune to malicious activity and require a smaller footprint that existing solutions. We then use our framework and apply it to an already built JavaScript system to analyze its properties and effectiveness.unpublishednot peer reviewe

Numerical Simulation Of Impact Effects On Multilayer Fabrics

High strength fabrics provide lightweight impact protection and are employed in a wide range of applications. Examples include body armor for law enforcement and military personnel and orbital debris shielding for the International Space Station. Numerical simulation of impact effects on fabric protection systems is difficult., due to the complex woven structure of the fabric layers and the typical application of fabrics in a multilayer configuration. Recent research has applied a new particle-element method to the simulation of impact effects on multilayer fabrics, applicable over a wide range of impact velocities, for use in body armor and orbital debris shielding design applications.Mechanical Engineerin

Effects of Nose Radius and Extreme Cooling on Boundary-Layer Transition for Three Smooth 15-Cone-Cylinders in Free Flight at Mach Numbers to 8.50

Three highly polished 15- included- angle cone- cylinders with hemispherical tips of several diameters ( 2, 3, and 4 in.) have been flown in order to obtain boundary- layer transition data at very low wall to local stream temperature ratios, and heat- transfer data. All surfaces had a 2-microinch average roughness height. Laminar flow existed over the entire hemispherical nose of the 2- and 3-inch-tip- diameter models throughout the complete flight history. Extreme cooling to wall to local stream temperature ratios at the sonic point as low as 0.20 did not cause transition on the nose for diameters as large as 3 inches. However, extreme cooling did cause early transition on the 4-inch model where it appears probable that transition occurred forward of the 45 station at a wall to local stream temperature ratio of about 0.26. Variations in tip diameter influenced transition downstream of the nose under conditions of extreme cooling. The 2-inch- tip model was laminar at all cone- cylinder stations at temperature ratios as low as 0.32 whereas the 3- and 4-inch-tip models were turbulent at the same local flow conditions but at higher wall to local temperature ratios. Transition on the cone and cylinder of the 3- and 4-inch- tip bodies appeared to be sensitive to local Mach number, and occurred at higher local temperature ratios when values of local Mach number were higher. Increasing the nose diameter from 2 to 3 inches significantly changed the local flow conditions for which laminar flow existed on the cone- cylinder afterbody. However, a further increase in tip size t o a 4-inch diameter had no discernable effect on the local flow conditions at transition. The transition results of the 3- and 4-inch-nose-diameter smooth bodies are similar to those observed on a 7/8-inch-nose-diameter body with roughened surfaces. Turbulent boundary layers resulted in both cases at very low wall to local stream temperature ratios. Both laminar and turbulent heat-transfer data were in good agreement with theoretical Stanton numbers when heat-transfer reduction due to tip blunting was considered

Electrical test wire attachment device

Test lead wire attachment quickly and securely engages screw head by expansion against the side walls of the screw head slot. Heat shrinkable tubing is used for the forward and shaft ends to insulate the device from accidental contact

Nationalism in Comparison: Palestine and Poland; A Personal Perspective

Defining and understanding nationalism in general can be difficult when done without referencing a particular nation or people. This paper is an attempt to understand nationalism in a comparative perspective through the author's experiences with nationalism in both Poland and Palestine.Ope

Navigating Identity, Belonging, and Purpose in a Society in Flux

Chris Rabb is a family historian, author, and thought leader at the intersection of social identity, civic innovation, and equity. This is a lightly edited transcript of his 2023 Dyson Distinguished Lecture delivered at the Elisabeth Haub School of Law at Pace University on October 25, 2023

“We are all servants here!” Mimar Sinan – architect of the Ottoman Empire

Mimar Sinan is the best known architect of the Ottoman Empire. His origin is uncertain. Sinan started his career as a christian slave. He participated in several campaigns as a member of the yard cavalry and as a military engineer. The success of his war-related buildings helped him to become the chief architectural authorithy of the Empire. His long life, fifty years of which he spent as the chief architect, coincided with the golden age of empire. The conquered areas provided plenty of construction tasks, as well as did the clients, who were aspiring for architectural representation worthy of their rank – among them the monarch and his wider environment. In addition, the empire, not being without financial resources, was also able to realize these plans. He became a symbol of the most glorious era of the Ottoman Empire through his works

Natural conditions in the Carpathian Basin of the middle ages

The analysis of natural conditions is a new field in Hungarian medieval research. This field could only come into existence with the spread of new sources of research, and with the need of drawing the most realistic picture of medieval living conditions with the help of more - previously ignored - data and facts. This field of research may have a special meaning as according to sources of the age, the Carpathian Basin was one of the natural Paradises of Medieval Europe