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  • 1
    Monograph available for loan
    Monograph available for loan
    Fluid flow and heat transfer in wellbores (2002)
    Richardson, Tex. : Society of Petroleum Engineers
    Details Availability
    Call number: 15/M 05.0032
    Type of Medium: Monograph available for loan
    Pages: ix, 181 S.
    ISBN: 1555630944
    Classification:
    Engineering
    Location: Reading room
    Branch Library: GFZ Library
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  • 2
    Online Resource
    Online Resource
    Non-Wood Forest Products of Asia : Knowledge, Conservation and Livelihood (2022)
    Cham :Springer International Publishing :
    Details
    Keywords: Forestry. ; Biodiversity. ; Economic policy. ; Social policy. ; Forestry. ; Biodiversity. ; Socio-Economic Policy.
    Description / Table of Contents: 1. Legal and policy issues sustaining conservation and livelihood through non-wood forest products: A global perspective -- 2. Traditional ecological knowledge in non-wood forest products management and biodiversity conservation: A focus on Chittagong Hill Tracts -- 3. Historical and contemporary reflections on non-wood forest products -- 4. Non-wood forest product of the Sundarbans, Bangladesh: the context of management, conservation and livelihood -- 5. Role of non-wood forest products in Bhutan’s quest for Gross National Happiness: An overview. 6. Non-wood forest products and agroforestry of Sri Lanka: Status, challenges and way forward -- 7. Consumption and marketing pattern of non-wood forest products in a rapidly changing world: Insights from north-east Bangladesh -- 8. Initiatives to enhance sustainability and productivity of bamboo in the Philippines -- 9. Non-wood products of Malaysian mangrove: contribution to livelihood and conservation -- 10. Plants in the Tribal life of Arunachal Pradesh with Special Reference to Tangsa Community, India.
    Abstract: This book highlights the importance of non-wood forest products (NWFPs) and their crucial role in sustaining the livelihood of rural and indigenous communities in Asia. The authors depict how the preservation of forests and the associated major non-wood resources may provide an important avenue to reduce poverty. The local practices and knowledge on harvesting NWFPs are often rooted in tradition, and vary from one region to the other. This made it difficult to develop and establish research focus on a greater scale in the past. Readers of this volume will gain an often-missed, broader perspective from these new studies. The authors put a special emphasis on the nexus between conservation and livelihood from an Asian point of view. This addresses a knowledge gap in the current literature and offers important clues on conducting similar research around the world. The volume provides a useful reference guide for the relevant researchers, practitioners and policy makers.
    Type of Medium: Online Resource
    Pages: XIX, 268 p. 71 illus., 44 illus. in color. , online resource.
    Edition: 1st ed. 2022.
    ISBN: 9783030993139
    Series Statement: World Forests, 25
    URL: https://doi.org/10.1007/978-3-030-99313-9
    DOI: 10.1007/978-3-030-99313-9
    DDC: 634.9
    Language: English
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  • 3
    Online Resource
    Online Resource
    Sustainability Challenges and Delivering Practical Engineering Solutions : Resources, Materials, Energy, and Buildings (2023)
    Cham :Springer International Publishing :
    Details
    Keywords: Artificial intelligence. ; Project management. ; Sustainability. ; Biotechnology. ; Geographic information systems. ; Artificial Intelligence. ; Project Management. ; Sustainability. ; Biotechnology. ; Geographical Information System.
    Description / Table of Contents: Introduction -- An Assessment of Dry Animal Dung to Power Generation and Investigation of A Possible Solar-Biogas Synergy -- An Assessment of the effects of Environmental factors on postharvest storage of some crops cultivated in Kaduna -- Analysis of Garment Manufacturing Process: A Case study (SUR Military and Civil clothing Factory) -- Application of Fuzzy Analytical Hierarchy Process for Replan of Omdurman Islamic University Main Campus to ensure Sustainable Environment -- Biological Nitrogen Removal of Monoethanolamine (MEA) from Petrochemical Wastewater using Activated Sludge Process -- Biological Organic Removals of Monoethanolamine (MEA) in an Activated Sludge System -- Bioremediation of Domestic Wastewater Using Pistia Stratiotes and Lemna Minor Plants -- Comparative Review of Global and Malaysian Green Building Rating Systems: Literature review -- Determination of Quality Parameters of Biodiesel from Feedlot Manure for Optimization of Production Process Conditions -- Developing performance dashboard for operational KPIs of water distribution network -- Development of Artificial Intelligence Techniques in Predicting Water Quality Parameters for Effective Project Management in A Complex River System.
    Abstract: This book highlights the recent findings and advances in science engineering technology and sustainability issues. It aims to discuss, reflect and share experience in addressing the findings in science engineering technology and sustainability. The book aims to report the various interrelated disciplines from different institutions to discuss, reflect and share technology and experience in addressing new findings and strategies. This book presents the proceedings of the Science Engineering Technology and Sustainability International Conference (SETS2021) which was held virtually—as sustainable virtual conferences become the new normal—during December 23–25, 2021. This book is presenting latest research findings, and it is suitable for researchers, postgraduate students, professionals and experts. The book includes interesting and top research in fuzzy modeling and decision-making applications in computer science. Several chapters address trending research about bioremediation and phytoremediation. There are mainly three research findings that cover artificial intelligence, sustainability and new technologies.
    Type of Medium: Online Resource
    Pages: XIII, 210 p. 138 illus., 122 illus. in color. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9783031265808
    Series Statement: Advances in Science, Technology & Innovation, IEREK Interdisciplinary Series for Sustainable Development,
    URL: https://doi.org/10.1007/978-3-031-26580-8
    DOI: 10.1007/978-3-031-26580-8
    DDC: 006.3
    Language: English
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  • 4
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    Investigation of mechanical field weakening of axial flux permanent magnet motor (2015)
    Institute of Physics (IOP)
    Details
    Publication Date: 2015-12-23
    Description: An investigation of axial flux permanent magnet motor (AFPM) characteristics was conducted with a proposed mechanical field weakening control mechanisms (by means of stator-rotor force manipulation) on the motor through modeling and experimentation. By varying the air gap between at least two bistable positions, the peak torque and top speed of the motor can be extended. The motor high efficiency region can also be extended to cover greater part of the motor operating points. An analytical model of the motor had been developed to study the correlation between the total attraction force (between the rotor and the stator) and the operating parameters of the motor. The test results shows that the motor output complies with the prediction of the research hypothesis and it is likely that a spring locking mechanism can be built to dynamically adjust the air gap of the motor to increase the operating range and could be applied in electric drivetrain applications to improve overall effic...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
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  • 5
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    Experimental Investigation of Microexplosion Occurrence in Water in Diesel Emulsion Droplets during the Leidenfrost Effect (2014)
    American Chemical Society (ACS)
    Details
    Publication Date: 2014-10-31
    Description: Energy & Fuels DOI: 10.1021/ef501588z
    Print ISSN: 0887-0624
    Electronic ISSN: 1520-5029
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering , Process Engineering, Biotechnology, Nutrition Technology
    Published by American Chemical Society (ACS)
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  • 6
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    Energies, Vol. 11, Pages 2261: On the Application of Proper Orthogonal Decomposition (POD) for In-Cylinder Flow Analysis (2018)
    MDPI Publishing
    In: Energies
    Details
    Publication Date: 2018-08-29
    Description: Energies, Vol. 11, Pages 2261: On the Application of Proper Orthogonal Decomposition (POD) for In-Cylinder Flow Analysis Energies doi: 10.3390/en11092261 Authors: Mohammed El-Adawy Morgan R. Heikal A. Rashid A. Aziz Ibrahim Khalil Adam Mhadi A. Ismael Mohammed E. Babiker Masri B. Baharom Firmansyah Ezrann Zharif Zainal Abidin Proper orthogonal decomposition (POD) is a coherent structure identification technique based on either measured or computed data sets. Recently, POD has been adopted for the analysis of the in-cylinder flows inside internal combustion engines. In this study, stereoscopic particle image velocimetry (Stereo-PIV) measurements were carried out at the central vertical tumble plane inside an engine cylinder to acquire the velocity vector fields for the in-cylinder flow under different experimental conditions. Afterwards, the POD analysis were performed firstly on synthetic velocity vector fields with known characteristics in order to extract some fundamental properties of the POD technique. These data were used to reveal how the physical properties of coherent structures were captured and distributed among the POD modes, in addition to illustrate the difference between subtracting and non-subtracting the ensemble average prior to conducting POD on datasets. Moreover, two case studies for the in-cylinder flow at different valve lifts and different pressure differences across the air intake valves were presented and discussed as the effect of both valve lifts and pressure difference have not been investigated before using phase-invariant POD analysis. The results demonstrated that for repeatable flow pattern, only the first mode was sufficient to reconstruct the physical properties of the flow. Furthermore, POD analysis confirmed the negligible effect of pressure difference and subsequently the effect of engine speed on flow structures.
    Electronic ISSN: 1996-1073
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by MDPI Publishing
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  • 7
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    Study of Vapour Cloud Explosion Impact from Pressure Changes in the Liquefied Petroleum Gas Sphere Tank Storage Leakage (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-05-23
    Description: This research was carried out to determine the risk impact of Liquefied Petroleum Gas (LPG) storage facilities, especially in the event of LPG tank explosion. In order to prevent the LPG tank explosion from occurring, it is important to decide the most suitable operating condition for the LPG tank itself, as the explosion of LPG tank could affect and cause extensive damage to the surrounding. The explosion of LPG tank usually occurs due to the rise of pressure in the tank. Thus, in this research, a method called Planas-Cuchi was applied to determine the Peak Side-On Overpressure (P o ) of the LPG tank during the occurrence of explosion. Thermodynamic properties of saturated propane, (C 3 H 8 ) have been chosen as a reference and basis of calculation to determine the parameters such as Explosion Energy (E), Equivalent Mass of TNT (W TNT ), and Scaled Overpressure ( P S ). A cylindrical LPG tank in Feyzin Refinery, France was sel...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
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  • 8
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    Early flame development image comparison of low calorific value syngas and CNG in DI SI gas engine (2013)
    Institute of Physics (IOP)
    Details
    Publication Date: 2013-06-18
    Description: The early flame development stage of syngas and CNG are analysed and compared from the flame images taken over 20° CA from the start of ignition. An imitated syngas with a composition of 19.2% H 2 , 29.6% CO, 5.3% CH 4 and balance with nitrogen and carbon dioxide, which resembles the typical product of wood biomass gasification, was used in the study. A CCD camera triggered externally through the signals from the camshaft and crank angle sensors was used in capturing of the images. The engine was accessed through an endoscope access and a self-illumination inside the chamber. The results of the image analysis are further compared with the mass fraction burn curve of both syngas and CNG analysed from the pressure data. The analysis result of the flame image of syngas validates the double rapid burning stage of the mass fraction burn of syngas analysed from in-cylinder pressure data.
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
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  • 9
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    Prevention of Major Accident Hazards (MAHs) in major Hazard Installation (MHI) premises via land use planning (LUP): a review (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-04-07
    Description: For a number of years, there is a concern about the causes of major hazards, their identification, risk assessment and the process of its management from the global perspective on the activities of the industries due to the protection of the environment, human and property. Though, industries cannot take pleasure in their business by harming the nature of the land, there are a number of measures that need to be put into consideration by the industries. Such measures are in terms of management and safety for the businesses, lives, properties, as well as the environment. The lack of consideration in the selected appropriate criteria can result in major accidental hazards (MAHs). This paper will review the land use planning (LUP) methods used in the past and present to prevent major accident hazards at major hazard installation (MHI).
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
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  • 10
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    Energies, Vol. 11, Pages 1650: The Effect of Fuel Injection Equipment of Water-In-Diesel Emulsions on Micro-Explosion Behaviour (2018)
    MDPI Publishing
    In: Energies
    Details
    Publication Date: 2018-06-26
    Description: Energies, Vol. 11, Pages 1650: The Effect of Fuel Injection Equipment of Water-In-Diesel Emulsions on Micro-Explosion Behaviour Energies doi: 10.3390/en11071650 Authors: Mhadi A. Ismael Morgan R. Heikal A. Rashid A. Aziz Cyril Crua The number and size distributions of the water dispersed phase have a significant effect on both the long-term stability of an emulsion, and the probability of micro-explosions inside an engine. The emulsions are subjected to intense pressure and shear flow in the fuel injection equipment resulting in changes in the number and size distributions of the dispersed phase. These changes, in turn, have significant effects on the micro-explosion behavior of the droplets. To our knowledge, these effects are not known and have not been reported previously. To uncover some of these effects we carried out a comprehensive experimental investigation on an emulsion spray of 10% water (by volume) in diesel at different injection pressures of 500, 1000 and 1500 bar. A measurement system consisting of a high-speed camera was used to visualize the droplets’ micro-explosions and a thermocouple measured the temperature. Our measurements indicated that the emulsion shear in the injector nozzle shifted the emulsion droplet size distribution towards the smaller end resulting in a delay in the onset of micro-explosion. This delay in the onset of the micro-explosion is thought to be due to the decrease in the dispersed water coalescence rate which, in turn, increases the stability of the emulsion. The results also show that this delay in the onset of micro-explosion, and the temperature required for its onset, increased with injection pressure.
    Electronic ISSN: 1996-1073
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by MDPI Publishing
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