′ c) Calculate volume bbl/meter for drill pipe O.D. = 5′ inch and I.D. = 4.276 inch. 2 2 2 10 8 8 16 d) Draw circulation system on a drilling rig. 3. a) Discuss IADC classification of a bit in details. b) Discuss different factors affecting rate of penetration in details. 4. Write short note on : i) Coring ii) Fishing tools iii) BOP iv) Directional well P.T.O. [3963] – 103 -2- *3963103* SECTION – II 5. a) Discuss different types of casings and function of the casings in brief
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HAIDER ALI (COURSE MATERIAL FOR DEPARTMENTAL PROMOTION EXAMINATION (DPE)) Chapter # 1: METALLOGRAPHIC EXAMINATION: 2 Chapter # 1: METALLOGRAPHIC EXAMINATION: ................................................................... 6 1.1 INTRODUCTION: ......................................................................... 6 1.2 METALLURGICAL MICROSCOPE: .................................................... 6 1.3 SPECIMEN PREPARATION: .......................................................
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focus of this paper is on the use of bioenergy to alleviate the poverty rate in Nigeria especially in the rural areas where there is large amount of Lands and biomass material. Developing the bioenergy strength of the country also creates wealth and employment opportunity in the country; generate electricity and the production of domestic cooking gas across the rural and urban settlements in the country. 1. INTRODUCTION Energy is the mainstay of Nigeria’s economic growth and development
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catabolic ability of degrader populations, metabolic engineering can be of considerable value in dealing with the problem of hydrocarbon contamination. Keywords: Bioremediation, Oxygenase, Biomagnification, Cometabolism, Consortium, Biosurfactant. Introduction Hydrocarbon (HC) group of compounds consist of hydrogen and carbon in their structure. As petrochemical industries are flourishing worldwide, HC contamination has become one of the major environmental problems faced globally. Environment is particularly
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Photoelectrochemistry Krishnan Rajeshwar The University of Texas at Arlington, Arlington, Texas 1.1 1.2 1.3 1.3.1 1.3.2 1.3.3 1.3.4 1.4 1.4.1 1.4.2 1.4.3 1.5 1.5.1 1.5.2 1.5.3 1.5.4 1.5.5 1.6 1.7 1.7.1 1.7.2 1.7.3 1.7.4 1.7.5 Introduction and Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electron Energy Levels in Semiconductors and Energy Band Model . The Semiconductor–Electrolyte Interface at Equilibrium . . . . . . . . The Equilibration Process . . .
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blood drawn and stored for own future use.In 1997, the World Health Organization (WHO) set a target for all blood donors to be unpaid volunteers. But statistics, in 2006, revealed that only 49 of 124 countries surveyed had achieved this target. INTRODUCTION A blood donation occurs when a person voluntarily has blood drawn and used for transfusions and/or made into biopharmaceutical medications by a process called fractionation (separation of whole-blood components). Donation may be of whole-blood
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Biology guide First assessment 2016 Biology guide First assessment 2016 Diploma Programme Biology guide Published February 2014 Published on behalf of the International Baccalaureate Organization, a not-for-profit educational foundation of 15 Route des Morillons, 1218 Le Grand-Saconnex, Geneva, Switzerland by the International Baccalaureate Organization (UK) Ltd Peterson House, Malthouse Avenue, Cardiff Gate Cardiff, Wales CF23 8GL United Kingdom Website: www.ibo.org © International
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TABLE OF CONTENT MICROBIAL DETERIORATION OF WOOD AND ITS CONTROL 2 Background 3 1.0 Introduction 4 1.1.1Chemistry of wood 5 1.1.2Extractives 5 1.2Environmental Factors Affecting wood decay 6 2.0 The Role of microorganisms in wood decay 7 3.0 Microbiological degradation of wood 9 3.1 Wood decaying fungi 10 3.1.1 Soft rot 10 3.1.2White rot 13 3.1.3 Bacteria 13 3.2 Mechanism of wood deterioration 14 3.2.1 Degradation of hemicelluloses 15 3.2.2 Degradation of lignin 16 3.2.3 Cellulose degradation
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A. Introduction Every day, the average person inhales about 20,000 liters of air. Every time we breathe, we risk inhaling dangerous chemicals that have found their way into the air. We as humans depend on the air around us to live, without it we would die. We rely on this as an essential source for living. Air pollution includes all contaminants found in the atmosphere. It is another major problem that is yet to be solved. These dangerous substances can be either in the form of gases or particles
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condition to the temperature sensitive perishable goods from the point of origin to the point of consumption through thermal and refrigerated packaging methods and the logistical planning to protect the integrity of these shipments. The Cold Chain logistics infrastructure generally consists of: Pre-cooling facilities, Cold storage, Refrigerated Carriers, Packaging, Warehousing, Information Management System, Traceability and Financial & Insurance Institution. A Cold Chain is a temperature controlled
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