Discuss how geomorphologists can make a contribution to river channel rehabilitation.
OLIVIA FINCH - WORCESTER Discuss how geomorphologists can make a contribution to river channel rehabilitation. Over the last few decades the application of geomorphology to river engineering has become an important aid to the effective management of river channels and systems. In particular river restoration and channel rehabilitation is now a major theme in river engineering, and one in which major developments in the contribution of fluvial geomorphology have taken place over the past decade (Douglas, 2000). Radical changes in policies and approach to river management as a result of increasing public scrutiny given failures to prevent flood hazards and economic and environmental concerns now highlight the need for fluvial geomorphology to be an integral part in the planning, implementation and post-project appraisal stages of engineering projects. Some of the main contributions that geomorphology can make to river and floodplain management include: the recognition of connectivity in the fluvial system at all scales and the inter-relationships that occur within catchments; to stress the importance of understanding fluvial history and chronology in order to fully comprehend the behaviour of fluvial systems; to highlight the sensitivity of fluvial systems to disturbances and change; and to demonstrate the importance of promoting ecologically acceptable engineering through a
Electrical Engineering Principles- Motorised Ventilation Fans
School of the Built & Natural Environment COURSEWORK SUBMISSION SESSION 2009/2010 COVER SHEET STUDENT NAME: James Neeson Full-Time Part-Time ? Programme YR Programme YR MSc Building Services Engineering Building Services Engineering MSc Construction Economics Building Surveying MSc Construction Management Construction Management MSc Energy & Environmental Mgt Environmental Civil Engineering MSc Environmental Civil Eng Environmental Management & Planning MSc International Project Mgt Fire Risk Engineering MSc Real Estate Management Interior Design MSc Waste Management Property Management & Valuation Quantity Surveying Module Number: Due Date: Module Title: Electrical Engineering Principles Lecturer Name: Coursework Title: Coursework Assignment No: 2 School of the Built and Natural Environment Written by: Module: Electrical Engineering Principles Title of Report: Motorised Ventilation Fan Submitted: Coursework issued by: CONTENTS PAGE .0 Introduction 2.0 History of the Motorised Ventilation Fan 3.0 Principles/Theory of the Motorised Ventilation Fan 4.0 Main Components of the Motorised Ventilation Fan 4.1 The Motor 4.2 The Blades 4.3 The Controls 5.0 Applications of the Motorised Ventilation Fan 6.0 Safety Devices 7.0 Future Developments 8.0 Conclusion 9.0 Bibliography 0.0 Appendix .0 Introduction The Motorised
Computer generations
3 ALTERNATIVE APPROACHES TO THE HISTORY OF COMPUTERS Jules Cassidy Lecture Structure ) Computer generations 2) Software approach 3) Friedman's computer systems development model 4) Conclusion First Generation Systems 1943 - 1955 * ENIAC (Electronic Numerical Integrator And Computer) * 18,000 vacuum tubes or valves * Designed by J.W.Mauchly & J.P.Eckert, University of Pennsylvania for US military during WW2 to calculate firing tables * Big & hot * UNIVAC - Remington Rand, first 'commercial' computer . Computer generations First Generation Systems 1943 - 1955 * ENIAC (Electronic Numerical Integrator And Computer) * 18,000 vacuum tubes or valves * Designed by J.W.Mauchly & J.P.Eckert, University of Pennsylvania for US military during WW2 to calculate firing tables * Big & hot * UNIVAC - Remington Rand, first 'commercial' computer Second Generation Systems 1956 - 1964 * Transistors (developed in AT&T's Bell Lab) replaced vacuum tubes * Brattain, Shockley & Bardeen * Faster, cheaper, smaller, more reliable * IBM 1401 Third Generation Systems 1964 -1980 * Integrated circuits. * Jack Kilby 1958 Texas Instruments * IBM System 360 (1964) and S/370 (1972) family of computers. * Cemented IBM's dominant market position * Smaller still, more powerful Fourth Generation and Beyond * Microprocessor Intel 4004 1971 * Personal computers -Altair,
Explain three methods, using recent statistics, of expressing the output of the U.K. construction industry
CONSTRUCTION INDUSTRY AND MANAGEMENT STUDIES COURSEWORK/ASSIGNMENT 1 BSc CONSTRUCTION SUITE Explain three methods, using recent statistics, of expressing the output of the U.K. construction industry The Standard Industrial Classification 1968 classified construction as follows: "Erecting and repairing buildings of all types." This include all type of building work, repairing and maintenance work. Nowadays, housing, building, and other construction brings convenient, shelf and working place for human. Since that, housing properties have the most stable value in the industrial. It is arguable that the construction industry, though the products that it creates, has a greater effect on the environment than any other industry. Therefore, it has a greater effect on the economic (Patricia, 1988). The very size of the construction industry means that it is of importance to the economy. There are several ways in which the size of the industry can be measured and expressed through the pricing, material, Construction Company, GDP and any other factors that relate to construction. The Gross Domestic Product (GDP) of the construction industry can be seen to be formidable, even in the year of low output of construction (Patricia, 1988). According to Patricia M. Hillebrandt, the GDP of construction industry in 1981 is twelve times that of the ship-building and marine engineering
Ecological engineering.
Ecological engineering Billy I. Ahmed Human have always shown remarkable skill, innovation and ingenuity when faced by environmental hurdles. Instead of competing with or opposing the environment, they cooperate with it by resorting to 'ecological engineering', Ecos, co-evolution and the ecological paradigm. This article briefly discusses these key issues that can reshape this world. The term "ecological engineering", was first coined by Howard T. Odum in 1962. He is now Professor Emeritus at the University of Florida, where his work in systems ecology has flourished. Ecological engineering, he wrote, is "those cases where the energy supplied by man is small relative to the natural sources but sufficient to produce large effects in the resulting patterns and processes". (H.T. Odum, 1962, "Man and Ecosystem" Proceedings, Lockwood conference on the Suburban Forest and Ecology. Bulletin Connecticut Agric. Station) Another definition that relates to ecosystem management by human society (Centre for Wetlands, University of Florida) is: "Ecological engineering is the design of sustainable ecosystems that integrate human society with its natural environment for the benefit of both. It involves the design, construction and management of ecosystems that have value to both humans and the environment. Ecological engineering combines basic and applied science from engineering,
Programming in construction
University of Glamorgan School of Technology BSc (Hons) Construction Management Module: Production Management 2 Assignment Title; Programming Content Page No. * Introduction.................................................. 3. Planning Method statement * Network Programme....................................... 5. * Method Statement.......................................... 6. Establish site Substructure Superstructure * Areas of concern........................................... 9. Activities with Risks to Health and Safety Emergency Procedures Parking/Storage * Outline bar chart......................................... 10. * Conclusion............................................... 11. * Bibliography............................................. 12. Introduction Planning and Method statement Planning; Construction planning is a critical and testing activity in the management and execution of construction projects. It involves the choice of technology, the designation of work tasks, the estimation of the required resources and durations for individual tasks, and also the identification of any interactions among the different work tasks. A good construction plan is essential for completing a contract on time and on budget. Developing the construction programme is a critical task in the management of construction, even if the plan is not written
Safe System Of Work
What is a Safe System of Work A Safe System of Work is a methodology used to produce a documented procedure for carrying out a task in a safe manner. The methodology involves the systematic examination of the task with a view to identifying all the associated hazards. The following steps are an example what should be looked at when creating a Safe System of Work: * The task o What is the work being carried out o What specialist tools are used o Who will do the task * Hazards associated with the task o From tooling o From plant and other equipment o From substances * Risk Assessment o Assess risks arising from the task * Define a safe method of work o Break task down into individual parts o Specify safe method o Produce documented work instructions * Implementation & operation o Ensure members of staff carrying out the task are adequately trained o Record training o Carryout regular checks and re-assess as appropriate The purpose of developing a Safe System of Work is to ensure that where possible any risks associated with a specific task are minimised. Having a Safe System of Work in place and made available to the people carrying out the tasks will act as an aid memoir. Having a Safe System of Work in place MUST not take the place of the appropriate training for the correct use of any equipment. The following pages are two exemplar Safe Systems of
bits and atoms
Reference: Negroponte, N (1995), Being Digital, London: Hodder and Stoughton THE DNA OF INFORMATION BITS AND ATOMS There are many merits to digitization. Some obvious ones include data compression and error correction, which is important in the delivery of information through a costly or noisy channel. Broadcasters, for example, can save money, and viewers can see or hear studio-quality picture and sound. But we are discovering that the consequences of being digital are far more important than those. When using bits to describe sound and picture, there is a natural advantage to using as few bits as possible. This is akin to energy conservation. However, the number of bits you devote per second or per square inch relates directly to the fidelity of the music or image. Typically, one has an interest in digitizing at a very high resolution and then using a less-resolved version of the sound or picture for one application or another. For example, a colour image might be digitized at very high resolution for final print copy but used at a lower resolution for a computer-aided page layout system. The economy of bits is driven in pan by the constrains of the medium on which it is stored or through which it is delivered. The number of bits that can be transmitted per second through a given channel (like copper wire, radio spectrum, or optical fibre) is the bandwidth of that
The object of this experiment is to determine the Liquid and Plastic Limits of a given sample of cohesive soil and hence classify the soil according to Casagrandes Classification Chart.
HNC CIVIL ENGINEERING SOIL MECHANICS ATTERBERG LIMITS OBJECT The object of this experiment is to determine the Liquid and Plastic Limits of a given sample of cohesive soil and hence classify the soil according to Casagrandes Classification Chart. These Limits are defined as: - LIQUID LIMIT (LL): - The minimum moisture content at which the soil will flow under its own weight. The liquid limit is the empirically established moisture content at which a soil passes from the liquid state to the plastic state. It provides a means of classifying a soil, especially when the plastic limit is also known. PLASTIC LIMIT (P.L): - The minimum moisture content at which the soil can be rolled into a tread 3mm diameter without breaking up. The plastic limit is the empirically established moisture content at which a soil becomes too dry to be plastic. It is used together with the liquid limit to determine the plasticity index which when plotted against the liquid limit on the plasticity chart provides a means of classifying cohesive soils. APPARATUS PROCEDURE The soil sample has been air dried and mixed. Then was sieved through a 425µm BS sieve. It was then kept in an airtight container until the test was to be executed. LIQUID LIMIT PROCEDURE ) Take a sample of about 300g of soil. Transfer the soil to a flat glass plate. Add distilled water and mix thoroughly with two palette
The Discovery of Poly(ethene) and Poly(propene)
The Discovery of Poly(ethene) and Poly(propene) This essay will be carefully constructed to enable an audience with an understanding of chemistry at Advanced Subsidiary GCE level, to acknowledge the discoveries of both poly(ethene) and poly(propene). The concept of addition polymerisation is regarded as a free-radical reaction. This means that the reaction is started and maintained by compounds with an unpaired electron, more commonly known to us by the term 'radical'. Each step in addition polymerisation, produces a free-radical, with the exception of steps that bring the reaction to an end. During the polymerisation of ethene, thousands of ethene molecules chemically bond together to create poly(ethene), widely known for its many uses as an insulator among others. The equation for the formation of poly(ethene) is: nCH2=CH2 [-CH2-CH2-]n. The number of molecules joining up is varying in amount, but is found to be somewhere in the region of 2000 to 20000. For the reaction to take place, the conditions need to be just right. A temperature of about 200 C, a pressure of about 2000 atm, and a small amount of oxygen as an impurity is needed for initiation. The mechanism of the polymerisation of ethene to form ldpe, is an overall process known as 'free radical addition', which itself has three different steps, initiation, propagation, and termination. Chain