City-zen: New Urban Energy: Nicosia 'City-zen Roadshow' REPORT

The City-zen Roadshow travels with a team of internationally recognized experts, in the field of energy planning and design to help develop a sustainable agenda for cities and their neighbourhoods. The Roadshow visited 9 cities in total over a 5-year period who sort expert guidance on how to become more sustainable and wish to move towards...

Attitude estimation for a bias-momentum geosynchronous satellite using an adaptive observer

Worldwide catastrophic fatigue-related aircraft accidents for aircraft types on the canadian civil register

The International Civil Aviation Organization (ICAO) has issued guidance material (Reference 1) for use in assessing and maintaining the airworthiness of aeroplanes. This guidance material provides a technical basis for a continuing aasessment of structural integrity and emphasizes the necessity of additional inspections for aging aircraft. In...

A survey of fatal aircraft accidents involving metal fatigue: Final report

Measurement of parameter affecting slamming

An investigation into wave slamming loads on cylinders (OSFLAG 2A). Final Report

The effect of heat input and post-weld heat treatment on mild and low alloy steel submerged arc weld deposits

Submerged arc welds were prepared in quenched and tempered steel plates using a mild steel wire, two low alloy steel wires, and commercially available fluxes. Heat inputs of 1.2, 2.2, and 4.3 KJ/mm were used for each wire/flux combination and in each case the preheat/ interpass temperature was maintained within the range 120 - 150º C. Sections...

Wind tunnel tests on schooner rigs and their use in performance prediction by VPP calculations

The response of a cylindrical structure to a turbulent flow field at subcritical reynolds number

Tables of derivatives to extend the zero incidence cone tables to intermediate mach numbers and cone angles

Derivatives witb respect ta cone semi-angle and free-stream Mach number are presented for fight of tbe flow field quantities tabulated in Reference 1 for the case of supersonic flow of an ideal gas (y = 1. 400) about circular cones at zero incidence. Tbe derivatives may be used in a first-order expansion ta comp.tte the essential properties of...

Hydraulic design of rock riprap

This paper summarizes a study of open channel flow conditions affecting riprap design and suggests a design procedure based on hydraulic principles rather than on rule-of-thumb formulas. Riprap design is idealized by study of the stability of a cubical element. Field and laboratory investigations required for the development of firm design...

Teh NAE hypersonic gun tunnel. Part I. The compression heater

The compression heater of a hypersonic gun tunnel 15 essentially a shock tube to which a light piston has been added. A calculatien of the piston and gas motions has been made by the method of characteristics for one set of conditions. Besides providing a typical description of the flow, the calculation is one against which approximate theories...

An electronic wave-height measuring apparatus