Flow Map

The unsteady flow can be analysed by Saint-Venant equations. These equations can be solved by characteristics and finite difference methods. The Saint-Venant equations are changed into four complete differential equations in characteristics method and these equations are solved by drawing two characteristics lines. The Saint-Venant equations are changed into set nonlinear equations and are solved using Preissman scheme in finite difference method. This set of equation is changed into linear equation using Newton-Rafson method and can be solved using Sparce method. In this research, the results of the two method were compared and this was shown that: 1) these two methods can draw the surface profiles and flow hydrograph as well; 2) the finite difference method is more accurate than that one; 3) the mesh size in finite difference method can be larger than that one; 4) the difference between two methods are increased by increasing the time and distance.. He is interested in the topics of: groundwater hydrology, irrigation and drainage engineering, sustainable development and environmental assessment, climate and integrated and sustainable water resource management, artificial neural network, and genetic algorithm. He has contributed to more than 80 publications in journals, books, or as technical reports. Currently, he is as a

Buzády, Zoltán "Role of serious gaming for Flow, leadership development and increasing competitiveness-a global best practice solution" In: "Role of serious gaming for Flow, leadership development and increasing competitiveness-a global best practice solution" (2021) p.

This study aims to analyse prospective chemistry teachers' cognitive structure related to the subject of covalent and ionic bonding. Semi-structured interviews were conducted with the participants in order to determine their cognitive structure, and the interviews were audio recorded to prevent the loss of data. The data were transcribed and transferred into the computer medium. Furthermore, a flow map was prepared for each prospective chemistry teacher and then was analysed firstly in terms of quantitative variables used in presenting cognitive structure in quantitative statements. Secondly, the statements in the flow maps were analysed in terms of comprehension level. In consequence, it was found through flow maps that prospective chemistry teachers were not very different from each other in terms of cognitive structure and that their cognitive structures were full of inadequacies and misconceptions. Having analysed the statements in the flow maps in terms of the levels of comprehension, the scope and richness of prospective chemistry teachers' cognitive structures were exhibited in more details.

ABSTRAK Penelitian ini bertujuan untuk mengetahui sistem informasi pengajuan anggaran berbasis web pada PT. Multimedia Solusi Prima Kota Bandung. Metode yang digunakan oleh penulis adalah metode kualitatif dengan pendekatan data deskriptif, dimana teknik pengumpulan data yang digunakan antara lain observasi, studi pustaka, dan wawancara. Metode pengembangan sistem yang digunakan adalah model waterfall, dengan alat bantu pemodelan yaitu flowmap¸ diagram konteks, dan DFD (Data Flow Diagram). Dari penelitian yang dilakukan, terdapat kekurangan dalam sistem pengajuan anggaran pada PT. Multimedia Solusi Prima Kota Bandung, yaitu mekanisme proses pengajuan biaya anggaran masih dilakukan dengan proses manual. Sehingga dengan pemograman berbasis web, penulis berharap dapat menjadikan sebuah sistem yang mampu meminimalisir waktu yang digunakan dalam pengajuan anggaran serta database yang terintegrasi menggunakan MYSQL. Program ini diharapkan dapat mempermudah pekerjaan dari proses penginputan hingga laporan pengajuan anggaran agar lebih efektif dan efisien. ABSTRACT This research aims to determine the budget submission information system based on the web at PT. Multimedia Solusi Prima Of Bandung City. The method used by the author is a qualitative method with a descriptive data approach, where the data collection techniques used include observation, library studies, and interviews. The system development method used is the waterfall model, with the modeling tool i.e. Flowmap ̧ diagram context, and DFD (Data FLow Diagram). From the research conducted, there are deficiencies in the budget submission system at PT. Multimedia Solusi Prima Kota Bandung, namely the process mechanism for submitting budget fees is still done by a manual process. So with web-based programming, the author hope to create a system that is able to minimize the time used in budget submissions and an integrated database using MYSQL. The Program is expected to facilitate the work of the input process until the sales report to be more effective and efficient.

The virtual design and construction is turning into a more essential service to develop construction designs. Even though it is going through the processes of situated projects in the pre-BIM stage, builders-developers are demanding virtual design and construction. In this context, companies specialized in virtual construction need to get ready to meet its increasing demand. The aim of this study is to identify how the virtual design and construction process works to suggest improvements from lean construction tools. Based on a qualitative methodology and through lean construction diagnostic tools to collect data, process structure elements are described, stream mapping are designed, cycle times are analyzed, restriction are identified, process changes are suggested. Through feedback from case study respondents, this research has concluded that there would be a meaningful improvement in global productivity and decrease in the total amount of time.

The present paper is part of a research program on two-phase flows and heat transfer studies in tube bundles. An experimental study was carried out to analyse the void fraction for vertical two-phase flows. Boiling across a horizontal tube bundle for three hydrocarbons (n-pentane, propane and iso-butane) under saturated conditions is investigated. The experiments were performed on a tube bundle with 45 plain copper tubes of 19.05 mm outside diameter in a staggered configuration with a pitch to diameter ratio of 1.33. An optical probe has been developed to determine the local void fraction at the minimum cross section between the tubes.

The purpose of this study is to determine the effects of internet-assisted chemistry applications on prospective chemistry teachers' cognitive structures in the topics of bonding and hybridization. The sample of the study consisted of 36 prospective chemistry teachers attending Hacettepe University, Faculty of Education, the Department of Chemistry Education in 2010-2011 academic year and taking Basic Chemistry I lesson. In the study, students were separated into experimental and control groups according to their pre-cognitive structures. Students were requested to answer two open ended questions. Answers by each student were gathered and evaluated by flow map method. "Bonding and hybridization" topics were taught to control group with traditional teaching method and to experimental group besides traditional method internet-assisted applications were conducted. The same open-ended questions were given to both groups and their cognitive structures were examined once more. The differences between control and experimental groups' cognitive structures were examined. A significant difference was identified in favour of experimental group (p<0, 05). The mean score of the Experimental group was X=19.94, and the mean score of the Control group was X=13.88. In addition, subsequent to internet assisted chemistry applications differences in terms of concepts and descriptions in prospective chemistry teachers' in experimental and control group cognitive structure have been determined. When post flow maps of prospective chemistry teachers in experimental group, on whom internet assisted chemistry applications were made, are formed, it has been determined that there are more statements about hybridization, hybridization types, molecule geometry and bond angles compared to control group.

This paper proposes a framework in which Lagrangian Particle Dynamics is used for the segmentation of high density crowd flows and detection of flow instabilities. For this purpose, a flow field generated by a moving crowd is treated as an aperiodic dynamical system. A grid of particles is overlaid on the flow field, and is advected using a numerical integration scheme. The evolution of particles through the flow is tracked using a Flow Map, whose spatial gradients are subsequently used to setup a Cauchy Green Deformation tensor for quantifying the amount by which the neighboring particles have diverged over the length of the integration. The maximum eigenvalue of the tensor is used to construct a Finite Time Lyapunov Exponent (FTLE) field, which reveals the Lagrangian Coherent Structures (LCS) present in the underlying flow. The LCS divide flow into regions of qualitatively different dynamics and are used to locate boundaries of the flow segments in a normalized cuts framework. Any change in the number of flow segments over time is regarded as an instability, which is detected by establishing correspondences between flow segments over time. The experiments are conducted on a challenging set of videos taken from Google Video and a National Geographic documentary.