2,316 research outputs found
Parametric and non-parametric approaches for runoff and rainfall regionalization
No full textThe information on river flows is important for a number of reasons including; the construction of hydraulic structures for water management, for equitable distribution of water and for a number of environmental issues. The flow measurement devices are generally installed across the workspace at various locations to get data on river flows but due to a number of technical and accessibility issues, it is not always possible to get continuous data. The amount rainfall in a basin area also contributes towards the river flows and intense rainfall can cause flooding. The extended rainfall maps for the study areas to analyze these extreme events can be of great practical and theoretical interest. This thesis can be generally regarded as a work on catchment hydrology and mapping rainfall extremes to estimate certain hydrological variables that are not only useful for future research but also for practical designing and management issues. We analyzed a number of existing techniques available in literature to extend the hydrological information from gauged basin to ungauged basin; and suggested improvements. The three main frontiers of our work are: Monthly runoff regime regionalization, Flow duration curves (FDCs) regionalization and preparing rainfall hazardous maps. The proposed methods of regionalization for runoff regime and FDCs are tested for the basins located in northern Italy; whereas for rainfall extremes, the procedure is applied to the data points located in northern part of Pakista
Pitfalls in transboundary Indus Water Treaty: a perspective to prevent unattended threats to the global security
No full textWater treaties have played an important role in peaceful resolution of water-related conflicts. Although the mode of negotiation to resolve water-related conflicts may vary from treaty to treaty, a number of structural falls make them unprepared for the future needs. The Indus water treaty is perhaps quoted as the most successful water-sharing mechanism in the recent times. Against all odds, the treaty has fulfilled its job descriptions of being a mechanism providing a moderately reliable framework for the peaceful resolution of water-related conflicts. However, the climate change is quickly eroding that trust. The water-sharing mechanism lacks guidelines to cater the issues related to climate change and basin sustainability which require integrated approach for their addressal. But the structural inflexibility does not encourage the riparian to collaborate and build mutual trust for common good. The riparian countries, within the framework of treaty, attempt to elevate their national interests by deliberately refusing to comply with the treaty clauses in letter and spirit, and even manipulate data to deprive the competing riparian of water. We propose and argue on the need of adopting structurally sound forum for solving water conflicts which will assist in comprehensive policy-making to ensure the sustainability of transboundary water resources. The forum will also provide an opportunity for the riparian to work together towards confidence-building through sharing of real-time hydrological data and further scientific analysis based on that. Conclusively, the shortcomings of the present conflict-resolution method are addressed by encouraging riparian to collaborate at various levels
Fabrication of nanofibers composites for biomedical and textile applications （生物医学および繊維応用のためのナノファイバー複合材料の製造）
No full text信州大学(Shinshu university)博士（工学）ThesisKHAN, MUHAMMAD QAMAR. Fabrication of nanofibers composites for biomedical and textile applications （生物医学および繊維応用のためのナノファイバー複合材料の製造）. 信州大学, 2019, 博士論文. 博士（工学）, 甲第703号, 平成31年03月20日授与.doctoral thesi
Spin transport properties of carbon nanotubes by ferromagnetic zigzag triangular defects: A first-principles study
No full textCarrying out first-principles density functional theory combined with a non-equilibrium Green's function approach, we study the electronic structure and transport properties of triangle zigzag hole (ZTH) incorporated single-walled carbon nanotubes (CNTs). The magnetism in CNTs is induced by the development of quasibound defect states of pi-orbitals at the zigzag edges of ZTH. We find interesting transport properties of defective (10,10) CNT exhibiting resonant peaks and broad transmission dips. The electronic transmission is completely suppressed for particular spin-orientation corresponding to those broad dips. These peaks and dips of transmission show robust nature upon the increasing size of ZTHs. Importantly, we show a remarkable control over the tuning of completely spin-polarized transmission at energy-scale by applying a reasonable external electric field. Spinpolarization of transmission also switches at Fermi energy by reversing the direction of the transverse electric field with an intensity of +/- 0.2 V angstrom(-1) . This carbon magnetism in CNTs together with switchable spin filtering through external field turns those into promising candidates for electric circuits and spintronic devices.
Predicting Peak Flows in Real Time through Event Based Hydrologic Modeling for a Trans-Boundary River Catchment
No full textInvestigating the hydrological response of an area to adverse climate changes and extreme rainfall events is crucial for managing land and water resources and mitigating the natural hazards like floods. Limited availability of the in situ data, especially in case of Transboundary Rivers, further highlights the need to develop and evaluate decision support systems which may predict the flows in real time using open source rainfall data. This paper presents the study conducted in Chenab River catchment, Pakistan, to develop and evaluate a hydrologic model using HEC-HMS for predicting flows based on TRMM rainfall data. The catchment was analyzed for hydro-morphological properties using SRTM DEM in HEC-GeoHMS. To rely on open source data as much as possible, digital soil map of the world developed by FAO and global land cover map developed by European Space Agency were utilized to compute Curve Number grid data for the catchment. These preliminary data analyses were employed to set initial values of different parameters to be used for model calibration. The model was calibrated for five rainfall events occurred in the rainy seasons of 2006, 2010 and 2013. The calibrated model was then validated for four other rainfall events of similar type in the same years. Consistency in simulated and observed flows was found with percent difference in volume ranging from −6.17 % to 5.47 % and percent difference in peak flows to be in the range of 6.96 % to 7.28 %. Values of Nash-Sutcliffe Efficiency were ranging from 0.299 to 0.909 with an average value of 0.586 for all flow events. The model was found well capable of capturing the hydrologic response of the catchment due to rainfall events and can be helpful in providing alerts of peak flows in real time based on real time/forecasted rainfall data
Le vizir Qamar ud-Din : Album "Princes et Seigneurs Indiens"
No full textÉcole moghole, vers 1735 Au recto de chaque feuillet, une miniature figurant des princes et des seigneurs indiens, et au verso, une illustration botaniqueVêtu d'un jama blanc et coiffé d'un turban orné d'une aigrette et de précieux bijoux, il s'appuie des deux mains sur une longue canne. Il porte un anneau d'archer noir au pouce gauche ; un poignard, au manche d'ivoire ou de néphrite, est glissé dans son patka doré à petites fleurs. Sur le côté gauche, on aperçoit un bouclier et un sabre. Mir Muhammad Fadil Itimad ud-Daula, Nawab Qamar ud-Din Khan Bahadur, fut tué par un boulet de canon à la bataille de Sirhind lors d'une des nombreuses incursions de Ahmad Shah Durrani, en 1748. Vizir de Muhammad Shah (régnant 1719-1748), Qamar ud-Din apparaît souvent auprès de l'empereur où il reste bien reconnaissable grâce à ses grosses joues.téléchargeabl
Nur-i-Afshan V.50 no.14 April 1922
No full textContents: Musaddas [Poetry] - Ḥukmarānī aur Hindustānī [Article] - K̲h̲udāvand Yasuʼ Masīḥ kī qiyāmat [Article] - Zindagī [Feature] - Ghar [Article] - Anokhā mujrim [Article] by Karam Cand - Mahātmā Jī ke muqadmah kā faiṣlah [Article] - Faiṣlah aur Masīḥ kā maṣlūb honā [Article] by Qamar, Jī. Em. - Harī Dāsī [Story] - Eshiyā [News] - Yūrap [News] - Amrīkah [News]
This volume of Nur-i-Afshan published weekly on Fridays from Lahore
Genetic Basis of Inherited Eye Diseases
No full textContains fulltext :
106926.pdf (Publisher’s version ) (Open Access)Radboud Universiteit Nijmegen, 18 april 2013Promotores : Cremers, F.P.M., Qamar, R. Co-promotor : Collin, R.W.J
- …
