Inflow and Infiltration Analysis Innovations — Evaluating Actual Reduction of Rainfall Derived Inflow and Infiltration using Control Basin and Hydraulic Modeling Methods

2016 ◽  
Vol 2016 (4) ◽  
pp. 71-87
Author(s):  
William A Barrack II ◽  
John Paul Travis ◽  
James W Shelton ◽  
Eric Harold
2017 ◽  
Vol 3 (2) ◽  
Author(s):  
Riza Inanda Siregar ◽  
Ivan Indrawan

Pengelolaan Daerah Aliran Sungai (DAS) yang tidak baik akan menimbulkan kerusakan. Salah satu indikasi bahwa suatu DAS mengalami kerusakan adalah terjadinya banjir. Pada saat kondisi jumlah air sungai melebihi kapasitasnya atau menjadi terlalu banyak maka terjadi banjir yang diakibatkan oleh luapan sungai. Faktor dari peristiwa alami seperti intensitas curah hujan yang tinggi merupakan penyebab terjadinya banjir, ditambah lagi dengan faktor aktifitas manusia. Salah satu cara untuk mengantisipasi bencana banjir adalah dengan memprediksi terjadinya banjir tersebut. Studi ini bertujuan untuk menganalisis perbedaan hasil yang diperoleh pada pemodelan 1-D dan 2-D terkait akurasi hasil untuk analisis lanjutnya. Keterbatasan data yang diperoleh dan ketepatan pemilihan metode pemodelan banjir akan mengurangi keakuratan hasil pemodelan dalam memprediksi banjir. Secara garis besar metode pemodelan banjir terdiri dari dua bagian yaitu pemodelan hidrologi (hydrology modeling) dan pemodelan hidrolika (hydraulic modeling). Pemodelan hidrologi pada daerah studi yaitu DAS Citarum Hulu, Jawa Barat menggunakan hidrograf metode SCS dan Snyder dengan bantuan software HEC-HMS, sedangkan pemodelan hidrolika menggunakan bantuan software HEC-RAS. Hasil yang diperoleh akan dilakukan kalibrasi dan verifikasi. Pemodelan dengan HEC-RAS 5.03 dianalisis untuk model 1-D dan 2-D, kemudian kedua data komparasikan untuk menganalisis perbedaan atau rentang hasil yang diperoleh terkait pemilihan metode pada DAS yang lain. Kata Kunci : Banjir, Citarum, Flood Modeller, Pemodelan, Sungai Deli  ABSTRACT Management of Watersheds (DAS) will cause damage if one indication that a watershed is damaged is the occurrence of floods. When the condition of the river water exceeds its capacity or becomes too much, there will be flood caused by the river flood. Factors of natural events such as high rainfall intensity is the cause of flooding, coupled with the factor of human activity. One way to anticipate flood disaster is to predict the occurrence of the flood. This study aims to analyze the differences in results obtained in 1-D and 2-D modeling on yield accuracy for further analysis. Limitations of the data obtained and the accuracy of selection of flood modeling methods will reduce the accuracy of the modeling results in predicting flooding. The method consists of two parts, hydrology modeling and hydraulic modeling. Hydrology modeling in the study area is upper Citarum Watershed, West Java using hydrograph of SCS and Snyder method with HEC-HMS software, while hydraulic modeling using HEC-RAS software. The results obtained will be calibration and verification. Modeling with HEC-RAS 5.03 was analyzed for 1-D and 2-D models, then the two comparative data to analyze the difference or range of results obtained related to the selection of methods in other watersheds Keywords: Citarum, Deli River, Flood, Modelling


Author(s):  
D.J. Benefiel ◽  
R.S. Weinstein

Intramembrane particles (IMP or MAP) are components of most biomembranes. They are visualized by freeze-fracture electron microscopy, and they probably represent replicas of integral membrane proteins. The presence of MAP in biomembranes has been extensively investigated but their detailed ultrastructure has been largely ignored. In this study, we have attempted to lay groundwork for a systematic evaluation of MAP ultrastructure. Using mathematical modeling methods, we have simulated the electron optical appearances of idealized globular proteins as they might be expected to appear in replicas under defined conditions. By comparing these images with the apearances of MAPs in replicas, we have attempted to evaluate dimensional and shape distortions that may be introduced by the freeze-fracture technique and further to deduce the actual shapes of integral membrane proteins from their freezefracture images.


2015 ◽  
Author(s):  
Ron Miller ◽  
Tracey Liberi ◽  
John Scioscia

2018 ◽  
Vol 1 (2) ◽  
pp. 61-77
Author(s):  
Hossameldin M. Elhanafy

The novelty of the research project reported in this paper is the coupling of hydrological and hydraulic modeling which are based on the first principal of fluid mechanics for the simulation of flash floods at Wadi Elarish watershed to optimize the a new location of another dam rather than Elrawfa dam which already exist. Results show that, the optimum scenario is obtained by the construction of the west dam. As a direct result of this dam, the downstream inundated area can be reduced up to 15.7 % as function of reservoir available storage behind the dam. Furthermore, calculations showed that the reduction rate of inundated area for 50-year floods is largely more than 100-year floods, implies the high ability of west dam on flood control especially for floods with shorter return period.


Author(s):  
N. K. Smagulov ◽  
A. A. Adilbekova ◽  
N. V. Gitenis

The use of mathematical modeling methods allowed us to develop criteria for functional stress for assessing and predicting the level of functional stress of foreign students in the process of adaptation to the educational process.


Author(s):  
D. A. Belinskaya ◽  
Yu. V. Chelusnova ◽  
V. V. Abzianidze ◽  
N. V. Goncharov

Poisoning with organophosphorus compounds occupy one of the leading places in exotoxicosis. At the first stage, the detoxification of organophosphates can be provided with the help of DNA or RNA aptamers that bind the poison in the bloodstream. Currently, the main method of searching for aptamers is the experimental method of systematic evolution of ligands by exponential enrichment (SELEX). In the process of aptamer selection, the target molecule must be immobilized via the streptavidin-biotin complex. Since the poison molecule is small in size, to increase its availability for binding to aptamer, it is necessary to use a spacer between organophosphorus compounds and biotin. The aim of this work was to optimize the selection of aptamers for organophosphorus compounds by increasing the availability of a poison molecule immobilized via the streptavidin-biotin complex on the example of paraoxon. For this purpose, three spacers between organophosphorus compounds and biotin were tested using molecular modeling methods: three links of polyethylene glycol (3-PEG), four links of polyethylene glycol (4-PEG) and aminohexyl. The conformation of the biotinylated paraoxon complex with streptavidin and the interaction of paraoxon with the binding fragment of the aptamer were modeled using molecular docking and molecular dynamics methods. The ability of biotinylated paraoxon to bind to the aptamer has been evaluated by analyzing the surface area of the paraoxon available to the solvent, as well as by calculating the free binding energies. It has been shown that only in the case of aminohexyl immobilized paraoxon can contact the aptamer. At the final stage, the synthesis of paraoxon bound to biotin via aminohexyl was carried out.


Author(s):  
Balazs Balogh ◽  
Anna Carbone ◽  
Virginia Spanò ◽  
Alessandra Montalbano ◽  
Paola Barraja ◽  
...  

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