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    Wyświetlanie 1-7 z 7
    Tytuł:
    Design Parameters for a Hydro desulfurization (HDS) Unit for Petroleum Naphtha at 3500 Barrels per Day
    Autorzy:
    Bose, Debajyoti
    Powiązania:
    https://bibliotekanauki.pl/articles/1194016.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    hydro desulfurization
    naphtha
    petroleum
    sulfur
    Opis:
    The present work reviews the setting up of a hydrodesulphurization unit for petroleum naphtha. Estimating all the properties of the given petroleum fraction including its density, viscosity and other parameters. The process flow sheet which gives the idea of necessary equipment to be installed, then performing all material and energy balance calculations along with chemical and mechanical design for the entire setup taking into account every instrument considered. The purpose of this review paper takes involves an industrial process, a catalytic chemical process widely used to remove sulfur (S) from naphtha.
    Źródło:
    World Scientific News; 2015, 9; 88-100
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Predicting Soil Erosion with Estimation of Saturated Hydraulic Conductivity from Soil Porosity: A Strategy for Meeting the SDG Goal Two and Six
    Autorzy:
    Adiaha, M. S.
    Oku, E. E.
    Chude, V. O.
    Nwaka, G. I. C.
    Ukem, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1046534.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Human development
    Hydraulic conductivity
    Hydro-physical
    SDG
    Soil erosion
    Opis:
    For years now, the continual degradation of soils in the tropics, and around the globe has continued to be one of the challenges facing humankind. Soil erosion is one of the factors gearing low food production, environmental pollution and degradation, acting like an hindrance towards the realization of the Sustainable Development Goals (SDGs) two (zero hunger) including SDG six (clean water and sanitation). The importance of saturated hydraulic conductivity (Ks) of a soil to Agriculturist, Environmentalist including Engineers cannot be exhausted, as this single hydro-physical soil property controls many processes in the soil system. An experiment was conducted to access the vulnerability of University of Abuja soils to erosion. Result of data analysis proves that the saturated hydraulic conductivity of the soils is slow to extremely slow with value recorded at (0.89 – 4.50 mm hr-1). Field data outcome presents a view that the soils of the area is mostly very compact to compact, with porosity value ranging from (1 – 21%). Saturated hydraulic conductivity estimation was done using hydro-physical models. The performance of the models were evaluated using Root Mean Square Error (RMSE) statistics. Outcome of the model comparation proves the two model as been able to effectively estimate the water flux of the area, presenting RMSE values at (5.67 and 2.41 respectively for the two models). The study thus concluded that for loss of arable land to be minimized or avoided and for environmental sustainability, ecological tool like planting of grasses including trees can be employed to salvage the impending case of soil erosion in the area.
    Źródło:
    World Scientific News; 2019, 136; 194-225
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    ISIS has turned the Middle East Hydro-Politics upside down
    Autorzy:
    Yıldız, Dursun
    Powiązania:
    https://bibliotekanauki.pl/articles/1193948.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Alawie State
    Hydro-politics
    ISIS
    New Middle East Map
    New Syria
    Orontes
    Opis:
    The “Arab Spring”—a wave of pro-democracy demonstrations that began in Tunisia in late 2010 and swept across Libya and Egypt—finally reached Syria in early March 2011. The unrest resulted from a combination of socio-economic and political problems that had been building for years and that affect especially Syria’s large rural population. One of the things that preceded the failure of the nation-state of Syria and the rise of ISIS have been considered the effect of climate change and the mega-drought that affected that region. However, four years after the conflict began, it has degenerated into a civil war with more than 200,000 deaths and about 4 million registered refugees. And it has put Syria at the center of nasty geopolitical struggles. In most evaluations of the Syrian civil war an future, the most neglected analysis is: How water resources will affect the ongoing civil war and how changing situation will affect hydropolitics relations between countries after the war. A far more sustained and thoughtful consideration of Syria’s future, and how the country will be governed democratically, is needed. There are at least seven scenarios for the future of the country from Assad victory to, stalemate, country breaks up, regional conflict, chaos etc. In details, autonomy in some regions, confederal, federal, independent all or a bicameral parliament and highly decentralized provincial structures, whatsoever the type of New Syrian system will be, there will be transboundary water issues that are more conflicted and somehow different than it was before. ISIS has been the most important and powerful actor in the civil war. It has played a very important role to change the region till now. If current political system of the Syria is changed or fragmented after the civil war that is likely to be, we can easily say that ISIS has turned the “Middle East Hydro Politics” upside down. Even if it is not well known right now, this change will affect future of the regional stability with climate change effects in near future.
    Źródło:
    World Scientific News; 2015, 19; 16-31
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tomorrow’s World Requires a Sustainable Hydro-Economics Concept
    Autorzy:
    Yıldız, N. Ç.
    Yıldız, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1182873.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    hydro-economics
    water economics
    water future
    water value
    water risk
    water price
    Opis:
    It is clear that humanbeings has destroyed the nature since the last quarter of the 19 th Century with start of industrial revaluation .In the beginning of the 21st century we faced extraordinary natural disasters as well as rainfall and temperature changes, rapid ice melting in different part of the world. All these mostly have occurred under the effect of climate change and forced a paradigm shift from demand or supply oriented harsh water development to use current water resources as efficient as possible. This logical approach is getting larger and larger as the years go by. Therefore near future water management concept will shift from building new and more water supply systems to better operating existing ones. The variation of water values in time and space has increasingly motivated efforts to address water scarcity and reduce water conflicts. Hydro-economic models represent spatially distributed water resource systems, infrastructure, management options and economic values in an integrated manner. In these tools water allocations and management are either driven by the economic value of water or economically evaluated to provide policy insights and reveal opportunities for better management. A central concept is that water demands are not fixed requirements but rather functions where quantities of water use at different times have varying total and marginal economic values. The 2015 World Economic Forum Global Risks Report ranked water as the number one risk factor. All these other sources of stress on water systems will be affected and/or exacerbated by climate change. This paper reviews the vital role of Hydro-Economics concept in a sustainable water management that will implement full cost recovery policy under the effect of climate change. It also focuses on the growing problems of allocation of water resources among competitive uses
    Źródło:
    World Scientific News; 2016, 53, 3; 189-203
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Afghanistan’s Transboundary Rivers and Regional Security
    Autorzy:
    Yıldız, Dursun
    Powiązania:
    https://bibliotekanauki.pl/articles/1193968.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Afghanistan’s Transboundary Rivers
    Central Asian Hydropolitics
    Central Asia’s Water
    Hydro Politics of Afghanistan
    Regional Water Security
    Opis:
    Aside from the issues peace and stability, one of Afghanistan’s most vital needs is safe and reliable supplies of water. But Afghanistan faces certain economic, political, institutional problems to develop water resources potential. These problems will increase as the years go by. Afghanistan is one of the world’s poorest countries, with an economy largely based on subsistence agriculture. Afghan farmers depend on reliable, year-round sources of surface water and groundwater. Seasonal flows of streams and rivers fed by melting snowpack high in Afghanistan’s mountains recharge alluvial aquifers located in populated valleys and provide city dwellers with drinking water. The current population of Afghanistan is about 31 million and it is projected to increase by nearly 80 percent by the year 2050 to approximately 56 million. This will raise demand on the country’s already economic stressed water resources. Almost all of the river basins are transboundary in the country. The Country due to the political unrest has not participated in many of the agreements regulating water resources in Central Asia. its current “non-player” and "outsider" status of the Central Asian Hydropolitics has to be changed when starting water resources development. This could create an international dispute in future regional water sharing discussions. In addition, recent research suggests that global climate change could alter precipitation patterns in Afghanistan. In particular, both the amount and the timing of snowfall received at higher elevations could change, impacting the major source of water for many areas in Afghanistan. Development of Afghanistan’s most transboundary water resources is a vital need for its own national interest, but it is also directly related with a transboundary water management dispute issue in the region. In other words, Afghanistan should find the best way to develop its transboundary water resources for national development as well as peace and stability of the region. But this development won't be so easy if current amount of water use of riparian states will be same when Afghanistan plans to release smaller amount of water.
    Źródło:
    World Scientific News; 2015, 16; 40-52
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Water and H2O Difference in Terms of International Relationship
    Autorzy:
    Yıldız, Dursun
    Powiązania:
    https://bibliotekanauki.pl/articles/1193965.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Hydro-Politics
    International Water
    Water
    Water Concept
    Water Definition
    Water War
    Water and Diplomacy
    Water for Future
    Water-Politics
    Opis:
    It is "True" to say that water literally and scientifically is composed of some elements (H2O). But this is to miss the reality of what water REALLY is. It is also “True” to say that the definition very much depends on where you look from. Geopolitical changes, rapid development, water- energy- food-environment nexus, securitisation of water, climate change etc. force us to define its actual meaning especially in terms of international relationship. From this approach, the meaning of this word is gaining a wider and deeper definition not a word but a "concept". Water is a general term to describe the stuff you drink and bathe with, and it, even in the purest and other social, socio-political, economical, socio-economical, international, strategical impurities in what we call “water”. This bulk “water” will play very important role for the future of the world under the of systems, has much else than just hydrogen and oxygen. Therefore there are all sorts of minerals climate change impacts as well as increasing global inequality. This requires more attention to difference between Water term and H2O in terms of international relationship. Society of 21st Century must be aware of the higher degree of social accountability of “water” than before. A higher degree of geopolitical, social, strategical and international accountability of water is therefore need to built into the process, with a wider recognition that water cannot be described on scientific and technological terms alone as H2O. “Water” means more than H2O in this respect since the half of 20th Century. In this paper, I will examine this difference by looking more closely at the social and hydro political notion of water.
    Źródło:
    World Scientific News; 2015, 16; 1-11
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    International Water Issues Need More Than Cooperation
    Autorzy:
    Yıldız, Dursun
    Powiązania:
    https://bibliotekanauki.pl/articles/1193959.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    New Hydro Diplomacy
    New Hydropolitcs
    New Water Paradigm
    Shared goal
    Shared vision
    Traditional Water Cooperation
    Transboundary Water
    Water Conceptional Change
    Opis:
    UN Secretary-General Ban ki-Mun pointed out extremely important and extraordinary points in his remark at Opening of the 7th World Water Forum held in Daegu, Gyeongbuk, The Republic of Korea in 12 April 2015. He said that; “Instead of seeing scarce water as a reason for competition or conflict, we have to treat it as a challenge to collaborate, a challenge to engage in innovative hydro-diplomacy. In today’s world, we must be more aware of the risks of water conflict.” It is important to note the emphasis on “collaboration and innovative hydro-diplomacy” in his remarks. While speaking on the occasion of World Water Day 2013, the Secretary General had also said, “Water scarcity threatens economic and social gains … And it is a potent fuel for wars and conflict.” Secretary General Ban Ki-moon’s warnings were reflected in the offcial definition of water security provided by the United Nations University- IWEH, which says. “The capacity of a population to safeguard sustainable access to adequate quantities of and acceptable quality water for sustaining livelihoods, human well-being, and socio-economic development, for ensuring protection against water-borne pollution and water-related disasters, and for preserving ecosystems in a climate of peace and political stability.” It is important to note the emphasis on “in a climate of peace and political stability” in this definition. The concerns of the United Nations are justified as the world faces an era of depleting water resources. The World Water Development Report of UNESCO, released in March 2015 warns us of serious depletion of water supplies by 2050, while at the same time, significant increase in demand due to population growth, economic development and urbanisation, among other factors. Different effects of climate change are today contributing to even more water scarcity and greater security risks. It shows us that we need an effective and mutually beneficial solution of water resources-related problems. At the global scale, the effective and mutually beneficial solution of water resources-related problems underlie peace, security and stability. But this can become a reality only if we change our conceptual approaches to domestic and transboundary water management.
    Źródło:
    World Scientific News; 2015, 18; 49-59
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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