Upstream structural management measures for an urban area flooding in Turkey

In recent years, flooding has become an increasing concern across many parts of the world of both the general public and their governments. The climate change inducing more intense rainfall events occurring in short period of time lead flooding in rural and urban areas. In this study the flood modelling in an urbanized area, namely Samsun-Terme in Blacksea region of Turkey is performed. MIKE21 with flexible grid is used in 2-dimensional shallow water flow modelling. 1 x 1000(-1) scaled maps with the buildings for the urbanized area and 1 x 5000(-1) scaled maps for the rural parts are used to obtain DTM needed in the flood modelling. The bathymetry of the river is obtained from additional surveys. The main river passing through the urbanized area has a capacity of 500 m(3) s(-1) according to the design discharge obtained by simple ungauged discharge estimation depending on catchment area only. The upstream structural base precautions against flooding are modelled. The effect of four main upstream catchments on the flooding in the downstream urban area are modelled as different scenarios. It is observed that if the flow from the upstream catchments can be retarded through a detention pond constructed in one of the upstream catchments, estimated Q(100) flood can be conveyed by the river without overtopping from the river channel. The operation of the upstream detention ponds and the scenarios to convey Q(500) without causing flooding are also presented. Structural management measures to address changes in flood characteristics in water management planning are discussed

Discretized rotation has infinitely many periodic orbits

For a fixed k in (-2,2), the discretized rotation on Z^2 is defined by (x,y)->(y,-[x+ky]). We prove that this dynamics has infinitely many periodic orbits.Comment: Revised after referee reports, and added a quantitative statemen

The ALPS project release 2.0: Open source software for strongly correlated systems

We present release 2.0 of the ALPS (Algorithms and Libraries for Physics Simulations) project, an open source software project to develop libraries and application programs for the simulation of strongly correlated quantum lattice models such as quantum magnets, lattice bosons, and strongly correlated fermion systems. The code development is centered on common XML and HDF5 data formats, libraries to simplify and speed up code development, common evaluation and plotting tools, and simulation programs. The programs enable non-experts to start carrying out serial or parallel numerical simulations by providing basic implementations of the important algorithms for quantum lattice models: classical and quantum Monte Carlo (QMC) using non-local updates, extended ensemble simulations, exact and full diagonalization (ED), the density matrix renormalization group (DMRG) both in a static version and a dynamic time-evolving block decimation (TEBD) code, and quantum Monte Carlo solvers for dynamical mean field theory (DMFT). The ALPS libraries provide a powerful framework for programers to develop their own applications, which, for instance, greatly simplify the steps of porting a serial code onto a parallel, distributed memory machine. Major changes in release 2.0 include the use of HDF5 for binary data, evaluation tools in Python, support for the Windows operating system, the use of CMake as build system and binary installation packages for Mac OS X and Windows, and integration with the VisTrails workflow provenance tool. The software is available from our web server at http://alps.comp-phys.org/.Comment: 18 pages + 4 appendices, 7 figures, 12 code examples, 2 table

Metallic, magnetic and molecular nanocontacts

Scanning tunnelling microscopy and break-junction experiments realize metallic and molecular nanocontacts that act as ideal one-dimensional channels between macroscopic electrodes. Emergent nanoscale phenomena typical of these systems encompass structural, mechanical, electronic, transport, and magnetic properties. This Review focuses on the theoretical explanation of some of these properties obtained with the help of first-principles methods. By tracing parallel theoretical and experimental developments from the discovery of nanowire formation and conductance quantization in gold nanowires to recent observations of emergent magnetism and Kondo correlations, we exemplify the main concepts and ingredients needed to bring together ab initio calculations and physical observations. It can be anticipated that diode, sensor, spin-valve and spin-filter functionalities relevant for spintronics and molecular electronics applications will benefit from the physical understanding thus obtained

High mass photon pairs in lepton+ lepton-gamma gamma events at LEP

High mass photon pairs in lepton+ lepton-gamma gamma events at LEP Adriani, O.; Aguilar-Benitez, M.; Ahlen, S.P.; Alcaraz, J.; Aloisio, A.; Alverson, G.; Alviggi, M.G.; Ambrosi, G.; Linde, F.L. Published in: Physics Letters B DOI: 10.1016/0370-2693(92)91576-U Link to publication Citation for published version (APA): Adriani, O., Aguilar-Benitez, M., Ahlen, S. P., Alcaraz, J., Aloisio, A., Alverson, G., ... Linde, F. L. (1992). High mass photon pairs in lepton+ lepton-gamma gamma events at LEP. Physics Letters B, 295,[337][338][339][340][341][342][343][344][345][346] https://doi.org/10.1016/0370-2693(92)91576-U General rights It is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulations If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: https://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. Download date: 28 Jun 2019 Physics Letters B 295 (1992) From the analysis of the reactions e + e-~ g + g-(n?) (g = e, #, ~) we observe four events, one e+e -~'7 and three #+ ~-??, with the invariant mass of the photon pairs close to 60 GeV. These events were selected from a data sample collected in the L3 detector corresponding to 950000 produced Z°'s. More data are necessary to ascertain the origin of these events

Visualization 1: Bubble wrap for optical trapping and cell culturing

Movie of optically trapped cell in bubble wrap Originally published in Biomedical Optics Express on 01 October 2015 (boe-6-10-3757

Parâmetros genéticos para características morfométricas de zangões africanizados

Available information on Africanized honeybee breeding, especially regarding the male component of the species, is almost non-existent. The aim of this study was to estimate genetic correlations for weight and morphometric traits of drones at emergence and maturity, so that in future breeding programs these traits can act as selection criteria through their genetic value. Phenotypic and genetic parameters were estimated for weight and morphometric traits such as weight (W), total length (TL), abdomen length (AL), abdomen width (AW), wing length (WL) and wing width (WW) at drones’ emergence (E) and maturity (M). Single-trait and two-trait models were used and parameters such as genetic variance, heritability and genetic correlations were calculated using a Bayesian approach. Results: A total of 1117 drones were measured at emergence and 336 again at maturity. In single-trait models, heritabilities were 0.78, 0.52, 0.56, 0.93 and 0.92 for WE, WM, ALM, WL M and WWM, respectively. The genetic correlation between WE and the remaining traits ranged from 0.55 to 0.83. Conclusions: Traits such as W E, WM, TLM, ALM, WLM, WWM, when considered individually, can be used as selection criteria because genetic variance for these traits accounted for more than 50% of the total phenotypic variance. The WE combined with other traits assessed at drones' emergence can be used in breeding programs for the improvement of the aforementioned traits. Breeding selection for weight or total length at emergence promises considerable genetic progress for weight at maturity. The combination of genetic parameters for reproductive and morphometric traits in drones properly supported by breeding programs relying on artificial insemination, for an effective mating control, will likely help in clarifying this possibility.Estudos sobre estimação de parâmetros genéticos em abelhas, com foco em abelhas africanizadas e na casta masculina da espécie, são escassos. O objetivo desse estudo foi estimar correlações genéticas para peso e características morfométricas de zangões à emergência e maturidade, para que em futuros programas de melhoramento essas características possam servir como critérios de seleção. Foram estimados parâmetros fenotípicos e genéticos para peso (W), comprimento total (TL), comprimento do abdômen (AL), largura do abdome (AW), comprimento da asa (WL) e largura da asa (WW) de zangões à emergência (E ) e maturidade (M) recorrendo a modelos de análise uni e bicaracter. Os parâmetros genéticos como variância genética, herdabilidade e correlações genéticas foram estimadas por meio do procedimento Bayesiano usando amostragem de Gibbs. Resultados: Foram medidos 1117 zangões à emergência e 336 novamente à maturidade. De acordo com a análise unicaracter, as herdabilidades foram 0.78, 0.52, 0.56, 0.93 e 0.92 para WE, WM, ALM, WLM e WWM, respectivamente. A correlação genética entre WE e as restantes características variou entre 0.55 e 0.83. Conclusões: As características W E, WM, TLM, ALM, WLM, WWM, quando consideradas individualmente, podem ser usadas como critério de seleção porque a variância genética aditiva para essas características foi responsável por mais de 50% da variação fenotípica total. O W E pode ser usado como critério de seleção se se ambicionar o melhoramento das restantes características à emergência. Os parâmetros genéticos obtidos para peso, comprimento total e comprimento do abdome à emergência indicam que há potencial de ganho genético para as características morfométricas à maturidade. Esses critérios podem embasar o estudo genético quantitativo das características morfométricas e reprodutivas à maturidade, que são de difícil mensuração