Water Problem in PEMFC

2007 ◽  
pp. 129-136 ◽  
Author(s):  
Kohei Ito
Keyword(s):  
Water Problem

A Study on the World Water Problem

2019 ◽  
Author(s):  
Akman Dincyurek
Keyword(s):  
Water Problem ◽  
The World

Tubarão Martelo Field Riser System: Shallow Water Challenging

2015 ◽  
Author(s):  
Elton J. B. Ribeiro ◽  
Zhimin Tan ◽  
Yucheng Hou ◽  
Yanqiu Zhang ◽  
Andre Iwane
Keyword(s):  
Shallow Water ◽  
Deep Water ◽  
Oil And Gas ◽  
Vertical Motion ◽  
Oil And Gas Industry ◽  
System Configuration ◽  
Wave Load ◽  
Gas Industry ◽  
Campos Basin ◽  
Water Problem

Currently the oil and gas industry is focusing on challenging deep water projects, particularly in Campos Basin located coast off Brazil. However, there are a lot of prolific reservoirs located in shallow water, which need to be developed and they are located in area very far from the coast, where there aren’t pipelines facilities to export oil production, in this case is necessary to use a floating production unit able to storage produced oil, such as a FPSO. So, the riser system configuration should be able to absorb FPSO’s dynamic response due to wave load and avoid damage at touch down zone, in this case is recommended to use compliant riser configuration, such as Lazy Wave, Tethered Wave or Lazy S. In addition to, the proposed FPSO for Tubarão Martelo development is a type VLCC (Very Large Crude Carrier) using external turret moored system, which cause large vertical motion at riser connection and it presents large static offset. Also are expected to install 26 risers and umbilicals hanging off on the turret, this large number of risers and umbilicals has driven the main concerns to clashing and clearance requirement since Lazy-S configuration was adopted. In this paper, some numerical model details and recommendations will be presented, which became a feasible challenging risers system in shallow water. For instance, to solve clashing problem it is strictly recommended for modeling MWA (Mid Water Arch) gutter and bend stiffener at top I-tube interface, this recommendation doesn’t matter in deep water, but for shallow water problem is very important. Also is important to use ballast modules in order to solve clashing problems.

scholarly journals The Water Problem

Nature ◽  
1910 ◽  
Vol 83 (2114) ◽  
pp. 291-292
Author(s):  
T. M. L.
Keyword(s):  
Water Problem

PHOTOCHEMISTRY OF TNT: INVESTIGATION OF THE 'PINK WATER' PROBLEM. PART 2

1975 ◽  
Author(s):  
L. A. KAPLAN ◽  
N. E. BURLINSON ◽  
M. E. SITZMANN
Keyword(s):  
Water Problem

scholarly journals Determination of Filtration and Purification System for Flood Water Filter

2018 ◽  
Vol 7 (2.15) ◽  
pp. 8
Author(s):  
Nurul Aini Kamarudin ◽  
Mohd Khairul Amri Kamarudin ◽  
Rosalan Umar ◽  
Abdul Rahman Hassan ◽  
Fathurrahman Lananan ◽  
...  
Keyword(s):  
Contaminated Water ◽  
Clean Water ◽  
Pathogenic Microorganism ◽  
Flood Water ◽  
Water Filter ◽  
Dirty Water ◽  
Water Problem ◽  
Purification System ◽  
Water Well

Water is one of the basic needs which essential to life but cannot take it easy, it becomes more concern when a flood, there is plenty of dirty water than clean water, and the sources of the water are not approved to use. There are many kinds of waterborne pathogens which can donate diseases also death if not treating the water well before use. The treatment can be utilized based on the size of the microorganism. By identifying the size of the smallest bacteria will make easier to find the filtration based on the size of filter pores and other processes to ensure all the bacteria is removed and the water safe to use. Even there are many kinds of bacteria or microorganisms in the contaminated water, but the pathogens need to deal. The water will become clean and safe to use when the colour is clear and there is any pathogenic microorganism in there. This study is to ensure water is clean from pathogen after the flood water is filtered by know for sure the organism’s size and to overcome the lack of clean water problem during the flood and others purpose. 

scholarly journals The technique of construct water-saving agriculture

2018 ◽  
Vol 246 ◽  
pp. 02016
Author(s):  
Ji Ren
Keyword(s):  
Water Resources ◽  
Social Development ◽  
Water Use ◽  
Water Resource ◽  
Water Saving ◽  
Canal Water ◽  
Irrigation Methods ◽  
Water Problem ◽  
Water Waste

A shortage of water resource in China, the water problem has become the bottleneck of China’s economic and social development. Agriculture consumes very large amounts of water resources and water waste is quite serious in our country, therefore, the construction of water-saving agriculture is urgent to solve the problem of water resource in our country. Implementation technology in the construction of water-saving agriculture was proposed in this paper, namely improve the canal water use coefficient, water saving irrigation methods and suitable irrigation mode.

scholarly journals “We Don’t Drink the Water Here”: The Reproduction of Undrinkable Water for First Nations in Canada

Water ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 1079 ◽  
Author(s):  
Warrick Baijius ◽  
Robert J. Patrick
Keyword(s):  
Political Ecology ◽  
First Nations ◽  
Water Resource Management ◽  
Water Governance ◽  
Case Study Research ◽  
First Nation ◽  
Governance Capacity ◽  
Water Problem ◽  
Source Water Protection ◽  
Current Water

First Nation communities in Canada are disproportionately plagued by undrinkable water and insufficient household sanitation. In addition, water resource management in First Nation communities has long been a technocratic and scientific mission controlled by state-led authorities. There has been limited engagement of First Nations in decision-making around water management and water governance. As such, problems associated with access to drinkable water and household sanitation are commonly positioned as hydrological or environmental problems (flood or drought) to be fixed by technical and engineering solutions. This apolitical reading has been criticized for not addressing the root cause of the First Nation water problem, but instead, of reproducing it. In this paper, an approach using political ecology will tease out key factors contributing to the current water problem in many First Nation communities. Using case study research set in source water protection planning, this paper explains how persistent colonial practices of the state continue to reproduce undrinkable water and insufficient household sanitation. Solutions to this ‘water problem’ require greater attention to First Nations water governance capacity and structures.

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