scholarly journals A Comprehensive Web-based System for Flood Inundation Map Generation and Comparative Analysis Based on Height Above Nearest Drainage

2021 ◽  
Author(s):  
Zhouyayan Li ◽  
Ibrahim Demir
Keyword(s):  
Real Time ◽  
Model Performance ◽  
Economic Losses ◽  
Analysis Tool ◽  
Flood Inundation ◽  
Web Based ◽  
Modeling And Analysis ◽  
Server Side ◽  
Inundation Mapping ◽  
Client Side

It is critical to obtain accurate flood extent predictions in a timely manner in order to reduce flood-related casualties and economic losses. Running a real-time flood inundation mapping model is a critical step in supporting quick flood response decisions. Most inundation systems, on the other hand, are either overly demanding in terms of data and computing power or have limited interaction and customization with various input and model configurations. This paper describes a client-side web-based real-time inundation mapping system based on the Height Above the Nearest Drainage (HAND) model. The system includes tools for hydro-conditioning terrain data, modifying terrain data, custom inundation mapping, online model performance evaluation, and hydro-spatial analyses. Instead of only being able to work on a few preprocessed datasets, the system is ready to run in any region of the world with limited data needs (i.e., elevation). With the system's multi-depth inundation mapping approach, we can use water depth measurements (sensor-based or crowdsourced) or model predictions to generate more accurate and realistic flood inundation maps based on current or future conditions. All of the system's functions can be performed entirely through a client-side web browser, without the need for GIS software or server-side computing. For decision-makers and the general public with limited technical backgrounds, the system provides a one-stop, easy-to-use flood inundation modeling and analysis tool.

A Home Multimedia Control Centers of Improved Design

2011 ◽  
Vol 338 ◽  
pp. 796-799
Author(s):  
Wei Chang Feng
Keyword(s):  
Remote Control ◽  
Real Time ◽  
Multimedia System ◽  
The Internet ◽  
Tv Viewing ◽  
Server Side ◽  
Video And Audio ◽  
The Rich ◽  
Improved Design ◽  
Client Side

E-Yuan multimedia system is developed for the rich audio and video resource on the Internet and on its server side, it can automatically search and integration of network video and audio resources, and send to the client side for the user in real-time broadcast TV viewing, full use of remote control operation, Simply it’s a very easy to use multimedia system. This article introduces its infrastructure, main technical ideas and you can also see some details about server side and client side. At the same time, the improvement on how to collect and integrate video resources is comprehensively elaborated.

scholarly journals Can the re-infiltration process be ignored for flood inundation mapping and prediction during extreme storms?

2021 ◽  
Author(s):  
Zhi Li ◽  
Mengye Chen ◽  
Shang Gao ◽  
Berry Wen ◽  
Jonathan Gourley ◽  
...  
Keyword(s):  
Model Performance ◽  
High Water ◽  
Public Access ◽  
Subsurface Water ◽  
Flood Inundation ◽  
Infiltration Process ◽  
Antecedent Soil Moisture ◽  
Flood Depth ◽  
Extreme Flood ◽  
Inundation Mapping

Coupled Hydrologic & Hydraulic (H&H) models have been widely applied to simulate both discharge and flood inundation due to their complementary advantages, yet the H&H models oftentimes suffer from one-way and weak coupling and particularly disregarded run-on infiltration or re-infiltration. This could compromise the model accuracy, such as under-prediction (over-prediction) of subsurface water contents (surface runoff). In this study, we examine the H&H model performance differences between the scenarios with and without re-infiltration process in extreme events¬ – 100-year design rainfall and 500-year Hurricane Harvey event – from the perspective of flood depth, inundation extent, and timing. Results from both events underline that re-infiltration manifests discernable impacts and non-negligible differences for better predicting flood depth and extents, flood wave timings, and inundation durations. Saturated hydraulic conductivity and antecedent soil moisture are found to be the prime contributors to such differences. For the Hurricane Harvey event, the model performance is verified against stream gauges and high water marks, from which the re-infiltration scheme increases the Nash Sutcliffe Efficiency score by 140% on average and reduces maximum depth differences by 17%. This study highlights that the re-infiltration process should not be disregarded even in extreme flood simulations. Meanwhile, the new version of the H&H model – the Coupled Routing and Excess STorage inundation MApping and Prediction (CREST-iMAP) Version 1.1, which incorporates such two-way coupling and re-infiltration scheme, is released for public access.

A Web-Based Embedded Sequential Controller with USB 1-N Wireless I/O Modules

2006 ◽  
Vol 505-507 ◽  
pp. 535-540
Author(s):  
Yung Hoh Sheu ◽  
Wu Jeng Li ◽  
Yen Chao Chen ◽  
Jheng Yi Yang
Keyword(s):  
Data Acquisition ◽  
Control Program ◽  
Control Software ◽  
Core System ◽  
Web Based ◽  
Linux Operation System ◽  
Server Side ◽  
Sequential Control ◽  
Multiple Data ◽  
Client Side

This paper designs web-based USB 1-N wireless I/O modules embedded sequential controller. The controller consists of ARM-based core system, a set of USB 1-N wireless I/O data acquisition modules, and sequential control software. The ARM-based core system running Linux operation system forms the basic hardware/software foundation of the controller. The set of USB devices used as I/O interface (sensor and actuator) of thecontroller. With the use of RF chip, the USB I/O is cascaded by wireless 1-N channel such that multiple data acquisition modules can communicate with the controller by a USB port. The device driver of the USB set for the ARM-base Linux system is developed. The sequential control software is designed as client/server structure. The server-side program and client-side program communicate through the Internet. The server-side control program, mainly a PLC interpreter, is an application developed in C++ in the Linux system. The client-side control program is developed in Java and put under a web server of the controller such that the program can be easily deployed by network and run in remote computer. The client program is also used as GUI of the controller.

scholarly journals Prosedur efektif pengembangan aplikasi basis data

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Zulkarnaen Hatala
Keyword(s):  
Web Application ◽  
Specific Requirement ◽  
Application System ◽  
Web Based ◽  
Database Application ◽  
Server Side ◽  
The Right ◽  
Client Side ◽  
The Web

Abstract—Efficient and quick procedure to build a web application is presented. The steps are intended to build a database application system with hundreds of tables. The procedure can minimize tasks needed to write code and doing manual programming line by line. The intention also to build rapidly web-based database application. In this method security concerning authentification and authorization already built in ensuring the right and eligible access of the user to the system. The end result is ready to use the web-based 3-tier application. Moreover, the application is still flexible to be customized and to be enhanced to suit more specific requirement in part of each module of the software both the server-side and client-side programming codes. Abstrak—Pada penelitian kali ini diusulkan prosedur cepat dan efisien pengembangan aplikasi basis data menggunakan generator aplikasi. Bertujuan untuk meminimalisir penulisan bahasa pemograman. Keuntungan dari prosedur ini adalah bisa digunakan untuk mengembangkan aplikasi basis data secara cepat terutama dengan sistem basis data yang terdiri dari banyak tabel. Hak akses dan prosedur keamanan standar telah disediakan sehingga setiap user terjamin haknya terhadap entitas tertentu di basis data. Hasil generasi adalah aplikasi basis data berbasis web yang siap pakai. Sistem aplikasi yang terbentuk masih sangat lentur untuk untuk dilakukan penyesuaian setiap komponen aplikasi baik di sisi server maupun di sisi client.

scholarly journals Reusable Client-Side JavaScript Modules for Immersive Web-Based Real-Time Collaborative Neuroimage Visualization

2017 ◽  
Vol 11 ◽  
Author(s):  
Jorge L. Bernal-Rusiel ◽  
Nicolas Rannou ◽  
Randy L. Gollub ◽  
Steve Pieper ◽  
Shawn Murphy ◽  
...  
Keyword(s):  
Real Time ◽  
Web Based ◽  
Client Side

The Framework Design of E-Yuan Multimedia System

2011 ◽  
Vol 148-149 ◽  
pp. 7-10
Author(s):  
Wei Chang Feng ◽  
Xiao Meng Chen
Keyword(s):  
Remote Control ◽  
Real Time ◽  
Multimedia System ◽  
The Internet ◽  
Tv Viewing ◽  
Server Side ◽  
Framework Design ◽  
Video And Audio ◽  
The Rich ◽  
Client Side

E-Yuan multimedia system is developed for the rich audio and video resource on the Internet and on its server side, it can automatically search and integration of network video and audio resources, and send to the client side for the user in real-time broadcast TV viewing, full use of remote control operation, Simply it’s a very easy to use multimedia system. This article introduces its infrastructure, main technical ideas and you can also see some details about server side and client side.

Optimization Project on Collecting and Integrating Video Resources

2013 ◽  
Vol 427-429 ◽  
pp. 2462-2465
Author(s):  
Wei Chang Feng
Keyword(s):  
Remote Control ◽  
Real Time ◽  
Multimedia System ◽  
The Internet ◽  
Tv Viewing ◽  
Server Side ◽  
E Box ◽  
Video And Audio ◽  
The Rich ◽  
Client Side

E-Box multimedia system is developed for the rich audio and video resource on the Internet and on its server side, it can automatically search and integration of network video and audio resources, and send to the client side for the user in real-time broadcast TV viewing, full use of remote control operation, Simply its a very easy to use multimedia system. This article introduces its infrastructure, main technical ideas and you can also see some details about server side and client side. At the same time, the improvement on how to collect and integrate video resources is comprehensively elaborated.

scholarly journals Web-based Spatial Decision Support: Status and Research Directions

2021 ◽  
Author(s):  
Claus Rinner
Keyword(s):  
Decision Support ◽  
Public Participation ◽  
User Studies ◽  
Spatial Decision Support ◽  
Spatial Decision Support Systems ◽  
Research Directions ◽  
Web Based ◽  
Client Server ◽  
Server Side ◽  
Client Side

This paper summarizes research on Web-based spatial decision support systems (WebSDSS). The review distinguishes early server-side from more recent client-side applications. A third category of WebSDSS focusing on spatial decision support in public participation is typically implemented as a mixed client/server-based system. Conclusions drawn from previous work include the need for systematic user studies of WebSDSS, and the adoption of interoperable architectures for distributed spatial decision support. Furthermore, a conceptual framework is proposed to facilitate further studies of WebSDSS methods.

scholarly journals A WEB-BASED INTERACTIVE PLATFORM FOR CO-CLUSTERING SPATIO-TEMPORAL DATA

2017 ◽  
Vol XLII-2/W7 ◽  
pp. 175-179
Author(s):  
X. Wu ◽  
A. Poorthuis ◽  
R. Zurita-Milla ◽  
M.-J. Kraak
Keyword(s):  
Clustering Algorithm ◽  
Temporal Patterns ◽  
Temporal Data ◽  
Web Based ◽  
Server Side ◽  
Exploratory Data ◽  
Spatio Temporal ◽  
Client Side ◽  
Concurrent Analysis ◽  
Selection Of

Since current studies on clustering analysis mainly focus on exploring spatial or temporal patterns separately, a co-clustering algorithm is utilized in this study to enable the concurrent analysis of spatio-temporal patterns. To allow users to adopt and adapt the algorithm for their own analysis, it is integrated within the server side of an interactive web-based platform. The client side of the platform, running within any modern browser, is a graphical user interface (GUI) with multiple linked visualizations that facilitates the understanding, exploration and interpretation of the raw dataset and co-clustering results. Users can also upload their own datasets and adjust clustering parameters within the platform. To illustrate the use of this platform, an annual temperature dataset from 28 weather stations over 20 years in the Netherlands is used. After the dataset is loaded, it is visualized in a set of linked visualizations: a geographical map, a timeline and a heatmap. This aids the user in understanding the nature of their dataset and the appropriate selection of co-clustering parameters. Once the dataset is processed by the co-clustering algorithm, the results are visualized in the small multiples, a heatmap and a timeline to provide various views for better understanding and also further interpretation. Since the visualization and analysis are integrated in a seamless platform, the user can explore different sets of co-clustering parameters and instantly view the results in order to do iterative, exploratory data analysis. As such, this interactive web-based platform allows users to analyze spatio-temporal data using the co-clustering method and also helps the understanding of the results using multiple linked visualizations.

Sign in / Sign up

Export Citation Format

Share Document