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Articles 61 - 90 of 778
Full-Text Articles in Sustainability
Harnessing The Potentials Of The Blue Economy For Kenya’S Sustainable Development, Enock Mong'are Okemwa
Harnessing The Potentials Of The Blue Economy For Kenya’S Sustainable Development, Enock Mong'are Okemwa
World Maritime University Dissertations
No abstract provided.
Identify Monitoring Needs And Emerging Technology To Support Ecosystem Based Management (Ebm) And Sustainable Blue Growth In Nigerian Ports : Case Study : Lagos Ports (Lagos Pport Complex And Tin Can Island Port Complex), Roland Oladipo Ijabiyi
World Maritime University Dissertations
No abstract provided.
Emissions Control Investment Policy For The 2020 Sulphur Cap Implemented By Port Of Gothenburg As A Model For The Port Of Mombasa, Luis M. Colmenares, Wachira W. Margaret
Emissions Control Investment Policy For The 2020 Sulphur Cap Implemented By Port Of Gothenburg As A Model For The Port Of Mombasa, Luis M. Colmenares, Wachira W. Margaret
World Maritime University Dissertations
No abstract provided.
Developing Safe And Environmentally Sound Ship Recycling In Indonesia, . Irawati
Developing Safe And Environmentally Sound Ship Recycling In Indonesia, . Irawati
World Maritime University Dissertations
No abstract provided.
Wind Propulsion Optimisation And Its Integration With Solar Power, Mphatso Nsanjama Nyanya, Huy Ba Vu
Wind Propulsion Optimisation And Its Integration With Solar Power, Mphatso Nsanjama Nyanya, Huy Ba Vu
World Maritime University Dissertations
No abstract provided.
The Economic Impact Of Low Sulphur Compliance On Future Fuel Cost And Container Freight Rates : A Case Study Of Shanghai-Lagos, Usman Shuaibu
The Economic Impact Of Low Sulphur Compliance On Future Fuel Cost And Container Freight Rates : A Case Study Of Shanghai-Lagos, Usman Shuaibu
World Maritime University Dissertations
No abstract provided.
A Case Study Of The Implementation And Enforcement Of Marpol Annex Vi Sulphur Regulations In Kenya, Annette Wangari Muriithi
A Case Study Of The Implementation And Enforcement Of Marpol Annex Vi Sulphur Regulations In Kenya, Annette Wangari Muriithi
World Maritime University Dissertations
No abstract provided.
Assessing Stakeholder Expectations For Marine Spatial Planning In Tonga : Implications For Governance, Hulita Lamasialeva Fa'anunu
Assessing Stakeholder Expectations For Marine Spatial Planning In Tonga : Implications For Governance, Hulita Lamasialeva Fa'anunu
World Maritime University Dissertations
No abstract provided.
An Impact Assessment Of Illegal Unreported Unregulated (Iuu) Fishing In Central Africa As A Step Towards Sustainability In Africa’S Fishing Industry : Case Study : Cameroon, Noella Njeuyap Mbotiji
An Impact Assessment Of Illegal Unreported Unregulated (Iuu) Fishing In Central Africa As A Step Towards Sustainability In Africa’S Fishing Industry : Case Study : Cameroon, Noella Njeuyap Mbotiji
World Maritime University Dissertations
No abstract provided.
The Implementation Of The Joint Development Of Greater Sunrise Special Regime Under The 2018 Timor Sea Maritime Boundaries Treaty Between Timor-Leste And Australia, Melkiades Laot
World Maritime University Dissertations
No abstract provided.
Challenges For The Ratification Of The Hong Kong Convention For The Safe And Environmentally Sound Recycling Of Ships, 2009 In Indonesia, Monica Ajeng Oktaviany
Challenges For The Ratification Of The Hong Kong Convention For The Safe And Environmentally Sound Recycling Of Ships, 2009 In Indonesia, Monica Ajeng Oktaviany
World Maritime University Dissertations
No abstract provided.
Development Of A Holistic Framework For Shipyard Energy Management : A Case Study On Production Facilities And Technology, Morné Irshkin Sinden
Development Of A Holistic Framework For Shipyard Energy Management : A Case Study On Production Facilities And Technology, Morné Irshkin Sinden
World Maritime University Dissertations
No abstract provided.
Stakeholder Engagement In Marine Spatial Planning Of Bangladesh, Mohammad Samsul Mannan
Stakeholder Engagement In Marine Spatial Planning Of Bangladesh, Mohammad Samsul Mannan
World Maritime University Dissertations
No abstract provided.
An Assessment Of Development Opportunities Of Ship Recycling Facilities Based On The Shipbuilding Yards' Infrastructures In Vietnam, The Quyen Pham
An Assessment Of Development Opportunities Of Ship Recycling Facilities Based On The Shipbuilding Yards' Infrastructures In Vietnam, The Quyen Pham
World Maritime University Dissertations
No abstract provided.
Consolidated Climate Markets Mechanism Analysis—Case Studies Of China, Japan, And Taiwan, Jules Chuang, Hsing-Lung Lien, Akemi Kokubo Roche, Pei-Hsuan Liao, Walter Den
Consolidated Climate Markets Mechanism Analysis—Case Studies Of China, Japan, And Taiwan, Jules Chuang, Hsing-Lung Lien, Akemi Kokubo Roche, Pei-Hsuan Liao, Walter Den
Water Resources Science and Technology Faculty Publications (Archived)
The post-Kyoto Protocol era has seen a transition to focus on the development of a renewable energy (RE) market as a primary instrument to reduce greenhouse gas (GHG) emissions worldwide. This paper analyses the development of GHG reduction and RE market in China, Japan, and Taiwan that are geographically proximate but socioeconomically diverse, and each plays a different but significant role in the world’s economy. By deploying a consolidated model incorporating the key components of market drivers underlying the goal of achieving GHG reduction, we threaded through the policy- and market-instruments implemented for each of the case studies over the …
Organic Agriculture Teaching And Learning In 2025: Transforming The Future Learning Landscape, Randa Jabbour, Charles A. Francis, Mary Barbercheck, Katharina S. Ullman
Organic Agriculture Teaching And Learning In 2025: Transforming The Future Learning Landscape, Randa Jabbour, Charles A. Francis, Mary Barbercheck, Katharina S. Ullman
Department of Agronomy and Horticulture: Faculty Publications
University instructors are compelled to anticipate future changes in farming and food systems that will impact their students. Sixteen educators met in 2018 to envision the future of organic agriculture courses needed by 2025. Likely future global issues include food access, especially for people of limited economic means; climate change; and fossil fuel costs. Changes that will impact education are increasing demand for quality food, more organic production, and globalization of food systems due to consolidation. Probable course content changes are increasing focus on whole farm systems; designing for resilience in changing physical, economic, environmental, and political climates; and increasing …
The Paradox Of Urban Greening: Does It Harm The Very People Who Need It The Most?, Juliana Maantay
The Paradox Of Urban Greening: Does It Harm The Very People Who Need It The Most?, Juliana Maantay
Sustainability Seminar Series
Urban greening and sustainability approaches are well accepted methods for improving the urban environment and combating the climate crisis. Cleaning up potentially contaminated lands and bringing them back into constructive public use is one of the benefits of greening. However, greening efforts may have unintended consequences, resulting in adverse social and economic impacts to the existing residents, who are often the most vulnerable urban populations. Spatial analyses of case study examples show that greening can spur “green gentrification.” Measures can be taken to integrate social equity objectives into urban sustainability planning, to mitigate gentrification, and to improve equitable distribution of …
Table Of Contents, The Editors
Trilinear Chart Classification Method Of Mine Water Hazard Type Based On Factors Of Water Recharge, Hu Weiyue, Zhao Chunhu
Trilinear Chart Classification Method Of Mine Water Hazard Type Based On Factors Of Water Recharge, Hu Weiyue, Zhao Chunhu
Coal Geology & Exploration
The results of the classification of hydrogeological types in coal mines are relatively inadequate to reflect the characteristics of water hazards such as water sources and water inrush channels. It is not very instructive to carry out water control work in coal mines starting from the basic elements of mine water hazard formation, this paper analyses the characteristics and harm degree of mine water hazard under different types of mine water sources, water inrush channels and their combination conditions, the water inrush source can be divided into 4 types according to its water-rich degree and supply capacity:weak supply of slow …
Analytical Solution For Surrounding Rock Of Circular Roadway Based On Generalized Smp Criterion Considering Seepage And Dilatancy, Pan Jiliang, Ren Fenhua
Analytical Solution For Surrounding Rock Of Circular Roadway Based On Generalized Smp Criterion Considering Seepage And Dilatancy, Pan Jiliang, Ren Fenhua
Coal Geology & Exploration
Based on the generalized spatially mobilized plane(SMP) criterion, considering intermediate principal stress, pore water pressure and dilatancy characteristics of surrounding rock, an ideal elastic-plastic model of roadway surrounding rock is established. According to the elastic-plastic theory, the unified analytical solutions of stress field, displacement field and radius of plastic zone under seepage flow are obtained. Then, the stress distribution of surrounding rock and the radius of plastic zone calculated by SMP criterion are compared with those calculated by Mohr-Coulomb(M-C) criterion, and the influencing factors such as pore water pressure and dilatancy angle of surrounding rock are analyzed. It is shown …
Identification Model Of The Independence Right-Fuzzy Variable Theory Of Water Inrush Source, Dong Donglin, Li Xiang, Lin Gang, Bian Jianling, Cao Chenglong, Wu Heng
Identification Model Of The Independence Right-Fuzzy Variable Theory Of Water Inrush Source, Dong Donglin, Li Xiang, Lin Gang, Bian Jianling, Cao Chenglong, Wu Heng
Coal Geology & Exploration
In the process of coal mining, mine water hazard accidents occur frequently. In order to find out the water source of mine water inrush quickly and accurately, and reduce the harm caused by mine water inrush to coal mine production, taking Zhaogezhuang mine as an example, and the method of combining independent weight coefficient with fuzzy variable theory was used to select six kinds of hydrochemical indexes of Na+, Ca2+, Mg2+, Cl-, SO42- and HCO3-, 20 sets of water sample data of Zhaogezhuang mine were analyzed and …
Micro Ct-Based Meticulous Characterization Of Porosity Evolution Of Coal In The Process Of Biodegradation, Dong Zhiwei, Guo Hongyu, Xia Daping, Liu Xile, Bai Yang, Zhao Guojun
Micro Ct-Based Meticulous Characterization Of Porosity Evolution Of Coal In The Process Of Biodegradation, Dong Zhiwei, Guo Hongyu, Xia Daping, Liu Xile, Bai Yang, Zhao Guojun
Coal Geology & Exploration
To explore the bio-permeability enhancing effect via methanogen treatment on different rank coals after anaerobic fermentation, micro-CT was used to analyze the change characteristics of pore structure of coal before and after biodegradation. At the same time, the adsorption characteristics of methanogens on the coal surface after anaerobic biodegradation were observed by scanning electron microscopy to analyze the reasons for the effect difference of biological transformation of different rank coals. The results show that the porosity and total throat length of the coal samples biodegraded increase and the connectivity of the pores is enhanced, it is indicated that coal samples …
Comprehensive Outburst Prevention Technology Of Outburst-Prone Coal Seam Uncovered By Crossdrift In Hongshan Coal Mine, Wang Beifang, Liang Bing, Zhang Jing, Chi Haibo, Huang Pujiang
Comprehensive Outburst Prevention Technology Of Outburst-Prone Coal Seam Uncovered By Crossdrift In Hongshan Coal Mine, Wang Beifang, Liang Bing, Zhang Jing, Chi Haibo, Huang Pujiang
Coal Geology & Exploration
Coal and gas outburst is a complex geo-dynamic disaster induced by a coal seam uncovered by crossdrift, threatens the safety and efficient production of coal mines seriously. For this, Hongshan coal mine was selected as engineering background to simulate mechanical response characteristics of surrounding rock during uncovering No.12 coal seam in a gas bursting hazardous zone with FLAC3D software. Then the outburst mechanism during uncovering a coal seam by a crossdrift was revealed, and comprehensive outburst prevention technology combining mine gas pre-drainage and improved metal skeleton was put forward. The results showed that the abutment pressure ahead of the …
Molecular Simulation Of The Influence Of Foam Fracturing Fluid Additives On Coalbed Methane Diffusion, Yang Zhaozhong, Han Jinxuan, Zhang Jian, He Rui, Lu Yanjun, Li Xiaogang
Molecular Simulation Of The Influence Of Foam Fracturing Fluid Additives On Coalbed Methane Diffusion, Yang Zhaozhong, Han Jinxuan, Zhang Jian, He Rui, Lu Yanjun, Li Xiaogang
Coal Geology & Exploration
Materials Studio(MS) software was used to establish a slit pore molecular model which considers the in-teractions among water-bearing coal, foam agent and foam stabilizer. Based on molecular diffusion theory, the diffusion ability of methane molecule respectively affected by four common foam agents and four foam stabilizers was calculated. Compared to original water-bearing coal, self-diffusion coefficient of coalbed methane(CBM) is reduced by 71.3%, 74.7%, 56.3%, 54.0% after adding foaming agents including sodium dodecyl sulfonate(SDS), sodium lauryl sulfate(SLS), sodium dodecyl benzene sulfonate(SDBS) and lycine respectively. Based on adding SDBS into water-bearing coal, the self-diffusion coefficient of CBM is further reduced by 63.2%, …
Reasons Of Low Yield And Stimulation Measures For Vertical Cbm Wells In High-Rank Coal, Jia Huimin, Hu Qiujia, Qi Kongjun, Liu Chunchun, Fan Bin, He Jun
Reasons Of Low Yield And Stimulation Measures For Vertical Cbm Wells In High-Rank Coal, Jia Huimin, Hu Qiujia, Qi Kongjun, Liu Chunchun, Fan Bin, He Jun
Coal Geology & Exploration
The CBM production is usually low and development effect is poor in China, which are mainly due to the poor adaptability of the stimulation measures to the geological conditions. This article, based on the low-yield reasons for vertical CBM wells in Zhengzhuang block in southern Qinshui basin, puts forth corresponding stimulation measures, analyzes the mechanism and the geological adaptability, optimizes the parameters of specific stimulation measures and carries out pilot test. The research and practices show that in deeply buried area, fractures are difficult to form, and re-fracturing technology can make the fracture turn and increase the crack length, which …
Estimation Method And Application Of Free Gas Content In Coal, Jiang Wenping, Zhang Qun, Zhang Peihe, Dong Mintao, Tian Xinjuan, Ru Ting
Estimation Method And Application Of Free Gas Content In Coal, Jiang Wenping, Zhang Qun, Zhang Peihe, Dong Mintao, Tian Xinjuan, Ru Ting
Coal Geology & Exploration
In order to study the distribution characteristics of free gas content in coal reservoirs, based on the understanding that free gas mainly exists in coal pores, the estimation method of free gas content is optimized. Based on the test data of coalbed methane arameters of 42 groups of coals with different ranks from lignite to anthracite in typical coal-bearing areas of China, the free gas content of different coal samples were calculated by using the optimized method of free gas content estimation, and compared with the results of desorption gas content. The results show that the ratio of free gas …
Analysis On The Type Of Reservoir Pressure Drop And Drainage Control Of Coalbed Methane Well In The Southern Block Of Shizhuang, Yi Yongxiang, Tang Shuheng, Zhang Songhang, Yan Xinlu, Wang Kaifeng, Dang Feng
Analysis On The Type Of Reservoir Pressure Drop And Drainage Control Of Coalbed Methane Well In The Southern Block Of Shizhuang, Yi Yongxiang, Tang Shuheng, Zhang Songhang, Yan Xinlu, Wang Kaifeng, Dang Feng
Coal Geology & Exploration
In order to fully understand the reservoir pressure variation characteristics of coalbed methane wells in the southern block of Shizhuang and based on the analysis of reservoir geological parameters and the analysis of actual production data, the reservoir pressures of different types of production wells are analyzed. The specific analysis of the drainage control and reservoir sensitivity effects is also carried out based on the abnormal wells. The results showed that the reservoir lamination of coalbed methane wells in the southern block of Shizhuang can be divided into three types, namely type of rapid pressure drop, type of medium-term stability …
Development And Test Of Self-Adjusting Deflected Wellhead Sealing Device For Coalbed Methane Wells, Pang Tao
Development And Test Of Self-Adjusting Deflected Wellhead Sealing Device For Coalbed Methane Wells, Pang Tao
Coal Geology & Exploration
In order to solve the problem of fluid and gas leakage in coal seam gas well, a self-adjusting deflected wellhead sealing device suitable for coal seam gas wells is developed. The device consists of three parts:Smooth rod sealing box, self-adjusting deflected part and lower sub. The self-adjusting deflected part is a smart combination of universal joint and high pressure flexible rubber tube, which makes the sealing box and the polished rod always keep good concentricity. Practical application shows that this kind of polished rod sealing device has reliable sealing performance, simple structure and the prospect of popularization and application.
Experimental Study On Contact Angle And Pore Characteristics Of Unsaturated Loess, Jing Yanlin, Wang Hao, Tao Chunliang, Yang Lina, Liu Jianwei, Wen Xin
Experimental Study On Contact Angle And Pore Characteristics Of Unsaturated Loess, Jing Yanlin, Wang Hao, Tao Chunliang, Yang Lina, Liu Jianwei, Wen Xin
Coal Geology & Exploration
Contact angle and pore size are important factors affecting soil wettability, permeability and capillarity. In order to further understand the capillary characteristics and permeability of unsaturated loess, the contact angle test and mercury intrusion test of unsaturated loess were carried out. The relationship between pore size and contact angle was analyzed in details. Moreover, the variation of pore and contact angle with depth was discussed. It is found that the contact angle of loess in the dry state is higher than the contact angle of loess in the natural state; as the depth of the formation increases, the contact angle …
Influence Of Loading Rate On The Fracture Characteristics Of Large-Size Specimen, Chen Juntao, Li Ming, Cheng Binbin, Yang Fan, Men Huili, Shao Zhujuan
Influence Of Loading Rate On The Fracture Characteristics Of Large-Size Specimen, Chen Juntao, Li Ming, Cheng Binbin, Yang Fan, Men Huili, Shao Zhujuan
Coal Geology & Exploration
According to the high mining speed of modern mines in China, the fracture characteristics of rock mass under different uniaxial loading rate was systematically analyzed. Based on the geological condition of deep rock mass in Jining area, the optimum mortar composed of 425 Portland cement, sand with particle size less than 2 mm, gypsum, water and high efficient water reducer was used, which had the mechanical properties similar to real rock mass was ascertained. Applying the triaxial rock test system of coupled stress-seepage and PCI-2 real-time monitoring system of AE, the fracture process of specimens of large size under biaxial …