p-Adic and Adelic Harmonic Oscillator with Time-Dependent Frequency

The classical and quantum formalism for a p-adic and adelic harmonic oscillator with time-dependent frequency is developed, and general formulae for main theoretical quantities are obtained. In particular, the p-adic propagator is calculated, and the existence of a simple vacuum state as well as adelic quantum dynamics is shown. Space discreteness and p-adic quantum-mechanical phase are noted.Comment: 10 page

Water-Food-Energy Nexus in the Nile River Basin

This is the final version of the poster. Available from the Dresden Nexus Conference via the link in this recordThe Nile - a transboundary river • 11 riparian countries and home for about 250 million people • Rapid population, economic and urbanization growth are projected • Basin-wide planned development can result in regional cooperation or trigger conflicts • The nexus approach is relevant for addressing broader interdependency and managing interlinked resources in a holistic manne

The Nile Water, Food and Energy Nexus - A system dynamics model

This is the author accepted manuscript.Water, Food and Energy (WFE) are inextricably linked and the action in one sector would not only affect that sector but could have significant impacts on the other sectors. The WFE Nexus is challenging in transboundary rivers. Due to rapid population and economic growth in the riparian countries, each riparian country plans to utilize its own resources to meet the growing demands for WFE. This might boost cooperation or increase the potential conflict among the riparian countries, that makes the Nexus is a suitable approach for studying the WFE in a transboundary river like the Nile basin in the context of the Nexus approach. A System Dynamics model was built for the entire Nile River to investigate the WFE conditions in the basin. The model was tested for sensitivity to determine the most sensitive model parameters. Moreover, the developed model will be used to investigate the future of the WFE in the basin through stochastic simulations. Different filling policies of the Grand Ethiopian Renaissance Dam, the dam operation after the filling process and their implications on the WFE on the basin will be assessed in the context of the WFE Nexus

The Nile Water Food and Energy Nexus Model

This is the author accepted manuscript.The Water, Food and Energy (WFE) Nexus is a useful concept to address the interlinkages among these resources on which we depend to achieve socio-economic and environmental goals in a sustainable way. WFE are interconnected in different ways and an action in one sector would not only affect that but could have significant impacts on the other sectors. The Nile basin is a transboundary river which is currently challenged by rapid population and economic growth that sparked development plans aimed at meeting growing demands for WFE. Currently, water, food and energy are still managed separately and there is a little attention given to the interactions between the WFE and socio-economic drivers and the potential for a transboundary cooperation on WFE matters in the Nile basin. A System Dynamics Modelling (SDM) approach is proposed for this study as it: (a) provides a unique framework to address the interlinkages among subsystems in a complex dynamic system, and (b) has the ability to capture the dynamic feedback between system components. A water balance for the entire Nile basin is integrated with the food, energy, population and economic sectors in Egypt. The underlying structure of each submodel was presented. The calibration and the model simulations results were presented, and the model showed a satisfactory performance

Flood Impact Assessment Literature Review

This report is a literature review on flood damage approaches and models with suggestion for model adaption, including the report on assessed damages in case study cities.The work described in this publication was supported by the European Community’s Seventh Framework Programme through the grant to the budget of CORFU Collaborative Research on Flood Resilience in Urban Areas, Contract 244047

Flood Damage Model Guidelines

This report outlines the framework for the damage model that should be applied in the project. The intended readership of the report is project partners who will be assessing flood damage in the different case study cities. The model outlined in the report deals with direct tangible damage, and indirect tangible and intangible damage will be described in detail in other deliverables. This report outlines the general principles that should be adhered to in assessing flood damage. Recommendations are provided on the appropriate scale of modelling that should be adopted. The report then goes on to outline the categories of assets that should be considered in assessing direct tangible damage. The report also provides recommendations on the data that should be sought to estimate the value of the assets at risk and the damage functions, which relate to the characteristics of the flooding. Finally, the report concludes with recommendations on how to estimate the Expected Annual Damage. An appendix is included, which provides the technical details of the modelling tool that has been developed on a trial site in Dhaka in Bangladesh. This tool can be applied on a GIS software platform. The details of the algorithms have been provided so that they can be applied in different software packages, if necessary. The tool will be updated as further progress is madeThe work described in this publication was supported by the European Community’s Seventh Framework Programme through the grant to the budget of CORFU Collaborative Research on Flood Resilience in Urban Areas, Contract 244047

A Method for Evaluating Local Scour Depth at Bridge Piers due to Debris Accumulation

This is the author accepted manuscript. The final version is available from Thomas Telford via the DOI in this record This paper introduces a novel method for evaluating the effect of debris accumulation on local scour depth at bridge piers. The concept of a debris factor is proposed to replace the current effective and equivalent pier width approaches that have been shown to overestimate debris-induced scour in many instances. The concept enables a simpler, more direct and realistic estimation of the change in local scour depth due to debris since it accounts for (i) debris length (streamwise), width (spanwise) and thickness (depth wise), and (ii) the influence of debris elevation in flow, i.e. is applicable for free-surface debris, submerged debris, or debris resting on the stream bed. The concept works with all existing local scour equations alongside other factors that influence scour depth such as flow angle of attack and pier shape. The mathematical model that underpins the proposed concept is derived through multiple linear regression on experimental data obtained at Exeter and elsewhere. The proposed method is shown to improve accuracy by at least 24% and 5% in comparison to the effective and equivalent pier width approaches, respectively. More importantly, the method is shown to be robust, providing highly consistent results with significantly less uncertainty.Engineering and Physical Sciences Research Council (EPSRC

On p-Adic Sector of Adelic String

We consider construction of Lagrangians which are candidates for p-adic sector of an adelic open scalar string. Such Lagrangians have their origin in Lagrangian for a single p-adic string and contain the Riemann zeta function with the d'Alembertian in its argument. In particular, we present a new Lagrangian obtained by an additive approach which takes into account all p-adic Lagrangians. The very attractive feature of this new Lagrangian is that it is an analytic function of the d'Alembertian. Investigation of the field theory with Riemann zeta function is interesting in itself as well.Comment: 10 pages. Presented at the 2nd Conf. on SFT and Related Topics, Moscow, April 2009. Submitted to Theor. Math. Phy

Integrated assessment of flood and drought hazards for current and future climate in a tributary of the Mekong river basin

This is the final version. Available on open access from IWA Publishing via the DOI in this recordData availability statement: Data cannot be made publicly available; readers should contact the corresponding author for details.Projecting flood and drought characteristics under climate change is important to management plans and enhancement of the resiliency of the society. However, studies that provide the integration of flood–drought hazard events is scarce. This study assessed the flood and drought hazards for future climate in the Mun River basin. A non-modelling approach is used to assess the flood hazard, while a multi-variate approach is used for the drought hazard. The results suggest that areas under ‘high’ and ‘very high’ drought hazard levels will increase from 27 and 4% during the baseline period to 43 and 37%, during the near-future period. Similarly, an increase in the ‘high’ and ‘very high’ flood hazard levels from 11 and 22% during the baseline period to 16 and 24% during the near-future period is projected. When both hazards are considered together, the total hazard is projected to increase by 155% in the near-future period. 76% of the catchment during the near-future period will have a combined hazard level from ‘medium’ to ‘very high’ compared to the 30% during the baseline period. The research presents a grim outlook on future floods and droughts in the basin, with the areas of Nakhon Ratchasima, Rio Et and Si Sa Ket provinces particularly at risk from both hydro-meteorological hazards.Natural Environment Research Council (NERC

Uticaj dodavanja neproteinskih azotnih supstanci na kvalitet silaže komine grožđa

In this study grape pomace was ensilaged without and with the addition of NPN substances (Benural) at the dose of 0.5, 1.0 and 1.5% of the amount of husk and with the addition of inoculant based on homo and hetero fermentative lactic acid bacteria. The greatest effect on the nutritional value had application of Benural, especially in increasing the CP content from 126.9 to 178.3 g kg-1DM, an increase of over 40%. Application of Benural increased the ammonia and soluble nitrogen several times, but even with the maximum addition of Benural percentage of ammonia nitrogen in the total nitrogen reached only slightly above 5% NH3 -N/Σ N (5.38%), while the percentage of soluble nitrogen in total nitrogen was 28.29%. The application of inoculants generally had no significant impact, both on the chemical composition and the fermentation process.U istraživaniima komina grožđa je silirana bez i uz dodatak NPN supstanci (Benural) u količini od 0,5; 1,0 i 1,5% od količine komina i sa dodatkom inokulantana na bazi homo i heterofementativnih mlečno-kiselinskih bakterija. Najveći efekat na hranljivu vrednost imala je primena NPN, posebno u povećanju sadržaja SP od 126,9 na 178,3 gkg-1SM. Primena NPN supstanci je uticala na povećanje amonijačnog i rastvorljivog azota nekoliko puta, ali i pri najvećoj količini dodatog NPN supstanci udeo amonijačnog azota u ukupnom azotu je neznatno prešao vrednost od 5% (%NH3-N/ΣN 5,38) dok je udeo rastvorljivog azota u ukupnom azotu iznosio 28,29%. Primena inokulanata uglavnom nije imala značajnog uticaja, kako na hemijski sastav, tako i na proces fermentacije