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Min Kyung Ahn, Ramakrishna Chilakala, Choon Han and Thriveni Thenepalli
One of the undesirable characteristics of some ground and natural water sources is hardness. Hard water can cause many problems around the world, including increased scaling on water pipes, boilers, atopic eczema and odd-tasting drinking water. Hardness ...
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Gustavo Lopes Muniz, Agda Loureiro Gonçalves Oliveira, Maria Geralda Benedito, Nicolás Duarte Cano, Antonio Pires de Camargo and Ariovaldo José da Silva
In this study, we analyzed the hydrogeochemistry of 350 underground wells in the northern region of the state of Minas Gerais, Brazil, for water-chemical parameters that may contribute to the chemical clogging of emitters in drip irrigation systems. Risk...
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Hui Hu, Tao Xue, Jianjun Li, Peisi Liu, Bo Wang and Yun Liu
There are many problems in the development of urban space in China. Among them, urban tunnels generally pass through many sections with very complicated geological conditions, and the construction will encounter great difficulties, so the mechanical beha...
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Miles P. Wheeler, Konstantin I. Matveev and Tao Xing
Hard-chine boats are usually intended for high-speed regimes where they operate in the planing mode. These boats are often designed to be relatively light, but there are special applications that may occasionally require fast boats to be heavily loaded. ...
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Agnieszka Lawniczak-Malinska, Mariusz Ptak, Sofia Celewicz and Adam Choinski
Lake disappearance is one of the results of water eutrophication which leads to lake shallowing and overgrowth, and small and shallow lakes are the most threatened with degradation. We studied the effect of lake shallowing on its overgrowth, taking into ...
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Channa Jayasumana, Sarath Gunatilake and Priyantha Senanayake
The current chronic kidney disease epidemic, the major health issue in the rice paddy farming areas in Sri Lanka has been the subject of many scientific and political debates over the last decade. Although there is no agreement among scientists about the...
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Tony Paris, Salaheddine Skali-Lami, Jean-Claude Block
Pág. 117 - 126
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Li Dai, Yanwei Chen and Xiaoli Wei
The Ormosia hosiei is a secondary protected wild plant in China, and its seed has a hardness rate of 86%. To explore the characteristics of the hard seed and the difference in seed vigor between hard seeds and the non-hard seeds of O. hosiei, the water a...
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Rakesh Dawar, Vishwanath Rohidas Yalamalle, Ram Swaroop Bana, Ramanjit Kaur, Yashbir Singh Shivay, Anil K. Choudhary, Teekam Singh, Samrath Lal Meena, Dunna Vijay, H. P. Vijayakumar, Vipin Kumar and Achchhelal Yadav
Little mallow (Malva parviflora L.) is a notorious weed that causes substantial yield losses in winter crops. For effective weed management and seed testing, a deeper understanding of seed dormancy, germination behavior, and dormancy-breaking methods is ...
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Ahmed Mohamed, Ahmed Asmoay, Saad S. Alarifi and Musaab A. A. Mohammed
Forty-eight water samples (30 groundwater and 18 surface water samples) were collected from the study region. Physical and chemical examinations were performed on the water samples to determine the values of various variables. Several graphs, sheets, and...
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Jadranka Bare?ic, Sanja Faivre, Andreja Sironic, Damir Borkovic, Ivanka Lovrencic Mikelic, Russel N. Drysdale and Ines Krajcar Bronic
Tufa is a fresh-water surface calcium carbonate deposit precipitated at or near ambient temperature, and commonly contains the remains of macro- and microphytes. Many Holocene tufas are found along the Zrmanja River, Dalmatian karst, Croatia. In this wor...
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Michael Kissel, Michael Bach and Britta Schmalz
So far, research with the hydrological model BlueM.Sim has been focused on reservoir management and integrated river basin modeling. BlueM.Sim is part of the official toolset for estimating immissions into rivers in Hesse (Germany) via long-term continuo...
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Yifeng Wu, Hongliang Dai, Jianyong Wu
Pág. 1 - 13
To improve aquatic environmental quality and maintain channel stability against soil erosion, ecological bank slope revetments for surface water bodies were developed using a combination of prefabricated porous concrete spheres and vegetation methods, an...
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Mohammad Damen Bani Fawwaz, Mohammad Najafi and Vinayak Kaushal
Pipeline asset management derives from pipelines? physical conditions, condition rating, and serviceability through investigating, monitoring, and analyzing the rupture history. The remaining asset life and structural condition of the pipeline network ru...
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Serges Mendomo Meye, Guowei Li, Zhenzhong Shen and Jingbin Zhang
Along with the increased use of water resources, some large water conservancy projects began construction to address power supply shortages and control flooding and drainage. As investment grows, construction cycles lengthen, external environmental impac...
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Marco Sinagra, Carmelo Nasello and Tullio Tucciarelli
Propagation of pluvial floods in urban areas, occurring with return time periods of few years, can be well solved using dual models accounting for the mutual relationship between the water level in the streets and the discharges inside the sewer pipes. T...
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Andrey Lunkov, Danila Sidorov and Valery Petnikov
Three-Dimensional (3-D) sound propagation in a shallow-water waveguide with a constant depth and inhomogeneous bottom is studied through numerical simulations. As a model of inhomogeneity, a transitional region between an acoustically soft and hard botto...
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Supriya Krishnan, Jiabiao Lin, Johannes Simanjuntak, Fransje Hooimeijer, Jeremy Bricker, Maayan Daniel and Yuka Yoshida
Engineering for flood resilience of dense coastal regions often neglects the resultant impact on urban design quality. Vital subsurface infrastructure such as hydraulic systems, water networks, civil construction, transport, energy supply and soil system...
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Mitsuharu Matsumoto
In this paper, a water driven soft actuator is introduced. Soft actuators driven by various external stimuli, such as air pressure, temperature, pH, electric field, and light have been reported in the past. Although they are very attractive, they often r...
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Bassam A. Younis, Laura Mahoney and Nicholas Palomo
We present a novel system for water disinfection with ultra-violet (UV) radiation. In this system, the UV lamps do not come into contact with the water and hence remain free of fouling. The system incorporates a diffusor and a nozzle, with stationary gui...
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