scholarly journals A Spatial Framework for Managing Sewer and Water Networks Using Sensor Networks: A Case of the University of Zambia

Author(s):  
Gabriel Chibuye ◽  
Jackson Phiri ◽  
Faustin Banda

The University of Zambia like any public institution has a lot of infrastructure which require maintenance and management. There’s however uncertainty of the utility lines locations and their depths. This causes destruction of water pipes and sewer lines when undertaking new constructions or any excavations. The lack of accurate location of underground and un-updated lines makes maintenance, management and planning of the utilities very difficult.  Therefore this study aimed to build a framework for Managing Sewer and Water Networks Using Sensor Networks at the University of Zambia. The Resident Engineer’s office only has some old scanned pdf sketches of both sewer and water networks. The field engineers locate most lines and other facilities using memory and experience. The methodology involved understating the existing operations of the Resident engineer’s office to ascertain the user needs. These needs formed the basis of the research, the development and design of the prototype of the Webbased Framework. Data Collection tools included Records (old maps) and Secondary Data (satellite images), Field Observations, Interviews and field Surveys. A presurvey (Reconnaissance Survey) was done to have an idea of the existing infrastructure and a more accurate survey was done using GPS GNSS equipment. The raw data was processed and GIS software was used to merge the collected datasets and the existing data. Georeferencing of existing maps and the satellite images was done using the GPS field data in ArcMap. New shapefiles were created from the point data from the survey and from digitising the existing scanned maps. New maps of the water and sewer networks (using the new shapefiles) and satellite imagery were created. A 15 digit coding system was created and was used to assign unique identification numbers and extra attribute information to the water and sewer network shapefiles. A QR code was generated for each node and the serial number recorded. Tagging was done using the QR code for each structure. All the shapefiles were loaded into a PostGreSQL spatial database and were used as input in the Web GIS application. The web application had some tools imbedded in it including; query, measure, add point/vertex, zoom, view, search and identify. Using internet of things (IOT) technology, water level sensors were placed on some critical manholes to help with the monitoring of the sewerage network. The system can therefore be used for identification of any infrastructure by scanning the QR code and a map showing the structure is seen online by the field technicians. Monitoring of the sewer system can be done using the sensors and ultimately the framework will ease the management of the water and sewer systems at the University of Zambia.

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Andriyanto Jurnal

AbstrakSaat ini, semua kegiatan sudah berbasis digital hal ini menimbulkan sebuah permasalahan baru dimana kejahatan sudah beralih menjadi kejahatan digital. Keamanan data berperan penting dalam menjaga kerahasiaan informasi agar tidak jatuh ke tangan yang salah. SMK Patriot Model IV Ciawigebang memiliki data yang cukup banyak untuk diolah salah satunya data akademik siswa dimana data tersebut sebetulnya sudah menggunakan komputer. Akan tetapi pada pelaksanaan proses ujian masih dilakukan secara semi-manual dimana peserta diberikan sebuah kertas ujian yang berisi identitas siswa tersebut sedangkan jadwal ujian harus mereka lihat pada papan pengumuman. Hal ini dirasakan kurang efisien dalam segi waktu dan kurang optimal dikarenakan penggunaan space/tempat untuk menempelkan jadwal. Kertas Ujian yang diberikan kepada siswa pun rentan akan adanya pemalsuan karena tidak adanya penanda khusus yang tidak mudah ditiru. Oleh sebab itu, pada penelitian ini dikembangkan kartu ujian dimana pada kartu tersebut berisi qr code yang telah diekripsi menggunakan Algoritma Caesar Cipher. Ketika siswa/guru ingin melihat data siswa maupun jadwal ujian, mereka melakukan scan qrcode melalui android dengan cara kerja qr code tersebut akan digenerate oleh sistem dan dideskripsikan menggunakan algoritma Caesar Cipher kemudian dicocokan dengan data yang berada di database, jika cocok maka akan menampilkan data siswa beserta jadwal ujiannya. Sedangkan dari sisi backend, admin dapat mengelola data siswa dan jadwal ujian menggunakan aplikasi web. Sistem ini dirancang menggunakan UML kemudian diimplementasikan ke dalam web dan android. Hasil akhir dari aplikasi ini diharapkan dapat membantu pihak sekolah maupun siswa dalam mengelola data siswa serta data ujian.Kata Kunci� Kartu Ujian,QrCode, Enkripsi, Algoritma Caesar CipherAbstractAt present, all activities are digital based, this raises a new problem where crime has turned into digital crime. Data security plays an important role in maintaining the confidentiality of information so it does not fall into the wrong hands. Ciawigebang Model IV Patriot Vocational School has quite a lot of data to be processed, one of which is student academic data where the data is actually already using a computer. However, the implementation of the examination process is still done semi-manually where participants are given an examination paper containing the student's identity while the exam schedule must be seen on the notice board. This is felt to be less efficient in terms of time and less than optimal due to the use of space / place to stick to the schedule. Paper Exams given to students are also vulnerable to forgery because there are no special markers that are not easily imitated. Therefore, in this study an examination card was developed in which the card contained a qr code that had been encrypted using the Caesar Cipher Algorithm. When students / teachers want to see student data and exam schedules, they do a qrcode scan through Android by way of working the qr code will be generated by the system and described using the Caesar Cipher algorithm and then matched to the data in the database, if suitable it will display student data along with the exam schedule. While from the backend side, the admin can manage student data and exam schedules using a web application. This system is designed using UML and then implemented into the web and android. The final results of this application are expected to help the school and students in managing student data and exam data.Keywords� Exam Card, Qr Code, Encription, Caesar Cipher Algorithm


Symmetry ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 1770 ◽  
Author(s):  
Kavita Sahu ◽  
Fahad A. Alzahrani ◽  
R. K. Srivastava ◽  
Rajeev Kumar

The development of web applications essentially relies on users’ demands who expect highly efficacious but cost effective software services. Managing time and cost so as to develop web applications that cater to the users’ need is a challenge for developers at present. Moreover, low-cost maintenance can only be achieved by enhancing the durability of the web applications. Identifying characteristics of durability is a complex task because the different experts have different opinions regarding the significance of characteristics that determine durability quotient of the web applications. As established by the best practices undertaken in this context, some experts consider quality to be the most important factor for determining durability. Therefore, the present study enlists multi-criteria decision-based symmetrical technique to address the multi-vector option availability for the apt selection of the characteristics for durability. Furthermore, it has also been identified that a numerical assessment of web applications’ durability can affect the service life and low-cost management in web applications. In this context, to achieve high durability and longevity in web applications, this paper attempts to illustrate and perform a numerical evaluation of durability characteristics. By understanding the various characteristics and their significance towards durability, the paper finds that the hesitant fuzzy-based symmetrical technique of the Analytic Hierarchy Process (AHP) and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) is an effective methodology for evaluating web applications’ durability. For evaluating the quality of the results and establishing their sensitivity, the authors have assessed the outcomes on six different projects of the University. Additionally, results assessed and discussed in this paper would be a conclusive reference for the developers in their attempts to develop highly durable and manageable web applications.


Author(s):  
Dirk Baldwin ◽  
Suresh Chalasani

Many businesses obtain feedback by surveying customers and business partners. Increasingly, these surveys are conducted via the Web. This chapter reviews briefly literature regarding Web-based surveys and describes a software architecture for a Web-based survey system. The architecture for the survey system is based on three-tiers comprised of a Web server, Web application server, and database server. The Web application server hosts the application modules that display and process the surveys. The application software consists of packages for establishing connections to the database and for reading static and dynamic data from the database. The processed surveys are written to the database with the survey responses. This system allows for anonymous survey responses and maintains user confidentiality. At the University of Wisconsin-Parkside, we have implemented this Web-based survey system, and used it to conduct three different surveys. This survey system is easily extensible to new surveys, and is used for instructional purposes to teach server-side programming. In this chapter, we discuss the key ideas behind the design and implementation of the extensible survey system, and provide results on its application.


Animals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 983
Author(s):  
Luigi Possenti ◽  
Lara Savini ◽  
Annamaria Conte ◽  
Nicola D'Alterio ◽  
Maria Luisa Danzetta ◽  
...  

The Italian National Veterinary Services, public health professionals, and policy makers are asked to participate at different levels in the decision-making process for the management of non-epidemic emergencies. A decision support system offering the different administrative and operational emergency management levels with a spatial and decisional tool to be used in the case of natural disasters is still missing at the national level. Within this context, the Italian General Directorate for Animal Health of the Ministry of Health funded a research project for the implementation of a new Veterinary Information System for Non-Epidemic Emergencies (SIVENE), an innovative real-time decision support tool for emergency response in a disaster management scenario. SIVENE was developed according to a multi-layer architecture with four integrated components: the database layer, which was implemented by an RDBMS Oracle 11 g; the ReST service layer, which was created using J2EE, Spring, and MyBatis technologies; the web application (business framework and user interface), which was developed in Angular4 framework using TypeScript language; and the web Geographic Information Systems (GIS), which was realized through the implementation of a geodatabase in Oracle RDBMS 11 g. This system allows us to build up and dynamically create a set of dedicated checklists to be used in the field when gathering the information needed for the management of non-epidemic emergencies; employ the application on mobile devices, such as tablets and smartphones; and use the web GIS to manage and visualize data of veterinary interest and territorial maps of risk and damage.


To provide an avenue for the university where it can share its profile, mission, vision, policies, achievements, capabilities, news and activities in the local, national and international arena of the academe, the IT Development Team of ESSU Can-avid Campus developed the website of the Campus using PHP and WordPress. A descriptive-developmental method of research was utilized to emphasize the development of the web application. Requirements Analysis was done to determine the important features that the website must contain per user definition. After development, the website was subjected to quality evaluation to describe the performance of the software through an evaluation survey questionnaire based on ISO/IEC9126 software quality standards. 303 direct end-users from among IT experts, employees and students of the campus were asked to evaluate the functionality and usability of the website. Evaluation results showed almost 100% compliance of the system requirements specified by the target clients and a highly usable software overall performance rating. The website, if regularly maintained will boast the organization valued image on the web and further increase clients and enrollees of the Campus.


2021 ◽  
Vol 13 (1) ◽  
pp. 47-52
Author(s):  
Biljana Risteska-Stojkoska ◽  
Hristijan Gjorshevski ◽  
Elizabeta Mitreva

The aim of this paper is to develop a Web application where scholars of the Faculty of Computer Science and Engineering (FINKI) at the University of Ss. Cyril and Methodius can display and share their projects and publications. Visitors can view, search through, and filter the authors, projects and publications that can be added and edited by the administrators via the administrator panel. In this paper, we first explain the type of system we are building and go through similar existing systems explaining how they work and what they offer. Then, we go through the programming languages and technologies we decided to use to develop this Web application. After that, the development phase follows, where we describe each of the features we implemented. In The Final Product section we finally show images where you can see how the Web application works and what it looks like. We finish the paper with a conclusion, briefly summarizing what we have achieved.


GeoScape ◽  
2019 ◽  
Vol 13 (2) ◽  
pp. 114-124 ◽  
Author(s):  
Zvonimir Nevistić ◽  
Drago Špoljarić

Abstract Using maps is inevitable in many human activities as well as in mountaineering. Until recently, most of the spatial and attribute data of the mountaineer’s interest could have been found only in analog form. With the development of information technology, global navigation satellite systems (GNSS), easily accessible measuring sensors and digital cameras, it is easier to collect, store, visualize, share, and update spatial data. The web GIS with its associated applications assumes dominance in browsing and dissemination of spatial data, and is applied in areas where there is a need for processing, analysis and visualization of various data that contain a spatial component, including mountaineering. When planning hiking, mountaineers need both spatial and attribute information on mountaineering facilities, checkpoints, and hiking trails in the form of GNSS traces. Through the interactive web application interface, it is possible to connect all these data, enabling easy viewing, browsing and analysis, or performing various spatial queries, which greatly facilitates the planning of hiking excursions. This paper presents a review and comparison of four most visited Croatian mountaineering portals: HPS’s Interactive Mountaineering Map of Croatia, Mountaineering portal and Geodetic mountaineering portal developed at the Faculty of Geodesy of the University of Zagreb and planinarenje.hr portal developed by the group of mountain enthusiasts. Numerous data on Croatian mountains and peaks, mountain facilities, huts and hiking trails are now accessible through portals to anyone with Internet connection, either with the computers, tablets or smartphones. All users can browse, filter and download data from the portal, and there are additional options for authorized users such as commenting on portal content. Several thematic portals of neighboring countries were also analyzed (portal of the Slovenian Mountaineering Association, Slovak mountaineering portal and one Swiss mountaineering portal) and compared with Croatian portals. Finally, the importance of the web GIS portals for the development of mountaineering tourism was emphasized, as well as the ecological culture and the sustainability of the mountaineering environment (preservation of mountain trails and facilities, protection of endemic plants, karst and geological features, etc.). Highlights for public administration, management and planning: • The presented web GIS represent an effective and efficient tool for planning and conducting trips in mountain areas as it allows better organization and management of mountain content for the tourists and other hikers. • Registered users can participate in the portal update (e.g. peak or hill endonyms) and this can be used by State Geodetic Administration for their register of geographical names (http://rgi.dgu.hr/pretrazivanje) • The Web GIS can also be used as a support in the tourism development of local mountain areas with respect to the ecological culture and sustainability of the mountain environment.


Author(s):  
Vladimir Vladimirov ◽  
Evgenii Petrovich Krupochkin

The article discusses the creation of a thematic resource on the history of the Trans-Siberian Railway using modern Web-GIS tools which will provide for accumulating source information collected during research and presenting it in a form accessible for researchers. The online GIS allows one to work with the materials named in several modes:  interactive, tabular (with a description of the source base) as well as modes of editing information in the cloud storage database or in a limited mode of data input and data loading. The GIS project is represented by a set of vector and raster data transformed to work in a modern coordinate system: historical maps and diagrams, satellite images in the form of mosaics and image fragments obtained through available geoservices (Google, Yandex, Bing). Digital layers are also available which are generated and edited based on the digitization of historical and modern maps of different scales. Simultaneously with the work on the web-resource, the authors are creating the Transsib desktop GIS. The development and launch of the web-GIS "Trans-Siberian Railway" gives its users a number of new opportunities including the availability of generalized information and cartographic database on the history of the construction and operation of the Transsib as well as an opportunity for several users to work with project materials simultaneously, search for the necessary metadata information in the GIS, etc.


2018 ◽  
Vol 48 (3) ◽  
pp. 84-90 ◽  
Author(s):  
E. A. Lapchenko ◽  
S. P. Isakova ◽  
T. N. Bobrova ◽  
L. A. Kolpakova

It is shown that the application of the Internet technologies is relevant in the selection of crop production technologies and the formation of a rational composition of the machine-and-tractor fl eet taking into account the conditions and production resources of a particular agricultural enterprise. The work gives a short description of the web applications, namely “ExactFarming”, “Agrivi” and “AgCommand” that provide a possibility to select technologies and technical means of soil treatment, and their functions. “ExactFarming” allows to collect and store information about temperature, precipitation and weather forecast in certain areas, keep records of information about crops and make technological maps using expert templates. “Agrivi” allows to store and provide access to weather information in the fi elds with certain crops. It has algorithms to detect and make warnings about risks related to diseases and pests, as well as provides economic calculations of crop profi tability and crop planning. “AgCommand” allows to track the position of machinery and equipment in the fi elds and provides data on the weather situation in order to plan the use of agricultural machinery in the fi elds. The web applications presented hereabove do not show relation between the technologies applied and agro-climatic features of the farm location zone. They do not take into account the phytosanitary conditions in the previous years, or the relief and contour of the fi elds while drawing up technological maps or selecting the machine-and-tractor fl eet. Siberian Physical-Technical Institute of Agrarian Problems of Siberian Federal Scientifi c Center of AgroBioTechnologies of the Russian Academy of Sciences developed a software complex PIKAT for supporting machine agrotechnologies for production of spring wheat grain at an agricultural enterprise, on the basis of which there is a plan to develop a web application that will consider all the main factors limiting the yield of cultivated crops.


2019 ◽  
Author(s):  
FRANCISCO CARLOS PALETTA

This work aims to presents partial results on the research project conducted at the Observatory of the Labor Market in Information and Documentation, School of Communications and Arts of the University of São Paulo on Information Science and Digital Humanities. Discusses Digital Humanities and informational literacy. Highlights the evolution of the Web, the digital library and its connections with Digital Humanities. Reflects on the challenges of the Digital Humanities transdisciplinarity and its connections with the Information Science. This is an exploratory study, mainly due to the current and emergence of the theme and the incipient bibliography existing both in Brazil and abroad.Keywords: Digital Humanities; Information Science; Transcisciplinrity; Information Literacy; Web of Data; Digital Age.


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