{"title":"A Comparative Study of DCT and DWT Image Compression Techniques combined with Huffman coding","authors":"Ashraf Y. A. Maghari","doi":"10.5455/JJCIT.71-1554982934","DOIUrl":"https://doi.org/10.5455/JJCIT.71-1554982934","url":null,"abstract":"لقد شاع استخدام تقنيات ضغط الصور لتخزين البيانات ونقلها، الأمر الذي يتطلب حيزا تخزينيا كبيرا وسرعة نقل عالية. ويؤدي النمو السريع للصور عالية الجودة إلى تنامي الطلب على تقنيات فعالة لتخزين البيانات وتبادلها عبر الانترنت. في هذه الورقة البحثية، نقدم دراسة مقارنة بين خوارزميات تقنيتي DCT و DWT مع استخدام ترميز هوفمان. والمقارنة في هذه الدراسة مبنية على خسمة عوامل: معدل الضغط، ومتوسط مربع الخطأ (MSE)، وأعلى نسب الأشارة إلى الضجيج (PSNR)، ومقياس عامل التشابه البنيوي (SSIM)، وزمن الضغط/ازالة الضغط.","PeriodicalId":36757,"journal":{"name":"Jordanian Journal of Computers and Information Technology","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48512201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluating the Accessibility of Kuwaiti E-government Websites","authors":"Iyad Abu Doush, Zainab Almeraj","doi":"10.5455/jjcit.71-1557233833","DOIUrl":"https://doi.org/10.5455/jjcit.71-1557233833","url":null,"abstract":"","PeriodicalId":36757,"journal":{"name":"Jordanian Journal of Computers and Information Technology","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45273744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Survey on Wireless Sensor Network-Based IoT\u0000Designs For Gas Leakage Detection and\u0000Fire-Fighting Applications","authors":"H. Salameh, Mohammad Dhainat, E. Benkhelifa","doi":"10.5455/JJCIT.71-1550235278","DOIUrl":"https://doi.org/10.5455/JJCIT.71-1550235278","url":null,"abstract":"The rapid advancements in wireless sensor network (WSN) technology gave impetus for large-scale deployment of Internet-of-things (IoT) services and applications. One of the envisioned IoT applications is the use of wireless sensor nodes in gas-leakage monitoring and detection applications. Such IoT applications can provide better protection to fire fighters and provide safety and early-warning gas detection alarms within a timely manner for individuals, factories and institutions. In this article, we highlight the unique characteristics of WSNs, discuss the main WSN design requirements associated with gas leakage and monitoring applications, discuss main differences between data collection- and event detection-based WSN solutions and present a detailed overview of the works that have been accomplished on providing WSN solutions for gas leakage detection and monitoring.","PeriodicalId":36757,"journal":{"name":"Jordanian Journal of Computers and Information Technology","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45969059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}