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Design and Implementation of Quality Enhanced Multimedia Content Delivery System for Mobile Clouds

Thesis Info

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External Link

Author

Saleem, Muhammad

Program

PhD

Institute

University of Engineering and Technology

City

Lahore

Province

Punjab

Country

Pakistan

Thesis Completing Year

2019

Thesis Completion Status

Completed

Subject

Computer Science

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/13295/1/Muhammad%20Saleem%20Computer%20Engg%202019%20uet%20lhr%20prr.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727727313

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The usage of multimedia applications is growing and the requirements for higher quality content delivery are increasing rapidly in the mobile network environment. The mobile network environment is challenging for recent multimedia applications as compared to the wired network environment in various ways. The multimedia contents are delivered to mobile users over heterogeneous networks. Due to fluctuation in bandwidth and user mobility, the service providers are facing difficulties in providing Quality of Service and guaranteed content delivery for multimedia applications. The existing schemes use the single source and multi-source delivery but are unable to balance between stream quality and network congestion for mobile users. Recently, HTTP is used for video streaming that ensures persistent integration of video quality to current HTTP based servers. The HTTP server stores multiple quality levels to provide adaptive media streaming under varying network environment. We designed a Quality Oriented Multimedia Content Delivery Scheme for the mobile cloud to deliver better quality multimedia contents for the mobile user. A method is developed to measure smooth available bandwidth in varying network condition that is used for bitrate selection. An optimized rate adaptation algorithm is designed and implemented to select the best bitrate for the next video chunk.The multimedia contents are delivered to the mobile device on the basis of the device’s parameters and network environment. A rate adaptation algorithm is designed by using Lyapunov optimization for multisource multimedia content delivery to minimize the video rate switches and provide higher video quality. The mobile cloud based multi-source streaming is designed and implemented to enhance performance in an adaptive video streaming client. The performance is compared with existing streaming techniques to validate the multi-source streaming solution. It considers key factors such as video quality, bitrate level, and quality variations to enhance quality of experience over wireless networks. The objective video quality assessment models like Peak Signal-to-Noise Ratio, Structural Similarity, and Video Quality Measurement are used to measure quality of the video. The client side Quality of Experience metric such as Startup delay, Rebuffering events, and Bitrate switch count are used for evaluation. The results show significant improvement over existing multimedia content delivery schemes.
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المبحث الرابع: بعض شعراء العصر الجديد

المبحث الرابع:بعض شعراء العصر الجديد
وخلاصۃ القول أن شعراء عصر النھضۃ في الدول العربیۃ قد حرصوا عل أن یقدموا الجدید في النثر والشعر، فجددوا في الفکرۃ والأسلوب والموضوع والتصویر الأدبي ومع ھذا ظلت الأصالۃ والجودۃ الصفۃ الممیزۃ في إنتاجھم، فھناك الکثیر ممن استجابوا للدعوة إلی الشعر الحر وأقدامھم کانت ثابتة في الشعر العمودي. ومن ھؤلاء الشعراء فدوی طوقان ، نزار قباني وأدونیس وغیرھم، فقد کانوا من شعراء الشعر العمودي ولکن توجھوا إلی الشعر الحر بعد اشتھارہ وانصرفوا عن الشعر العمودي، فالجدید جذب أنظارھم وأصبحوا من أشھر شعراء الحرکۃ الجدیدۃ .
ومن أوائل الشعراء الذین تقدموا في ھذہ الساحۃ الفنیۃ نازک الملائکۃ وھي الرائدۃ، وبدر شاکر السیاب وعبدالوھاب البیاتي وبلند الحیدري من العراق، وصلاح عبدالصبور وأحمد عبدالمعطي حجازي من مصر ومحمد مصباح الفیتوري من السودان۔ وفدویٰ طوقان من فلسطین، ومحمد حسین عواد وناصر أبو حمید من المملکۃ العربیۃ السعودیۃ والکثیر من الشعراء الشباب ، ونالت حرکۃ الشعر الحر إعجاب القراء والسامعین والنقاد والأدباء. وھذہ بعض أبیات من قصیدۃ ’’ثورۃ علی الشمس‘‘ للشاعرۃ العراقیۃ (نازك الملائکۃ) یتجلی فیہ أثر انفعال الشاعرۃ في جمال الوحدۃ :
وقفت أمام الشمس صارخۃ بھا یا شمس: مثلک قلبي المتمرد
قلبي الذي جرف الحیاۃ شبابہ وسقی النجوم ضیاؤہ المتجدد
مھلاً: ولا یخدعک حزن حائر في مقلتيّ۔۔۔ و دمعۃ تتنھد!
فالحزن صورۃ ثورتي وتمردي تحت اللیالي۔۔۔ والألوھۃ تشھد
والآن سنتعرف علی بعض شعراء عصر نازك الملائکۃ وھم

بدر شاکر السیاب
ولد بدر شاکر السیاب في 25 دیسمبر 1926، فھو شاعر عراقي یعد واحداً من الشعراء المشھورین في الوطن العربي في القرن العشرین، کما یعتبرأحد مؤسسي الشعر الحر في الأدب العربي ، ویقول في أنشودۃ المطر۔
عیناك غابتا نخیل ساعۃ السحر۔
أو شرفتان راح ینأی عنھما القمر
عیناک حین تبسمان تورق الکروم
وترقص الأضواء کالأقمار في النھر
یرجّہ الجذاف وھناً ساعۃ السحر
قام بعض رواد الشعر في العراق ومنھم السیاب بمحاولات جادۃ للتخلص...

Psychosocial Nurturing of Children in Islam

Psychosocial nurturing of children is linked with Parenting and personality development theories and child development theories too report evidences of influences of parenting on children nurturing. The purpose of this paper is to explore existing parenting styles in current literature and how these parenting styles influence upon and form the personality of the children in their early years. The paper aims to examine parenting with reference to authoritarian parenting, authoritative parenting, permissive parenting and uninvolved parenting. It discussed the expectations and responsiveness of the parents which determine their behavior and style. Through parenting, psychosocial nurturing of the children is determined and it was explained in existing literature and analyzed in Islamic teachings. The study followed a critical interpretivist method which examined the literature and conducted content analysis. The study examines the parenting concept and parenting style in Islamic teachings. Islam lays special emphasis on communication and attitude of the parents towards their children particularly in early childhood. Parenting style in Islamic teaching displays a loving and guiding mode. It is less demanding and more responsive in early years. Parenting in Islamic teaching encourages developing tolerance, harmony and peace. It shows flexibility to accept children’s dispositions and tries to discipline their inner faculties. Islamic teachings expect from parents to be responsive with love and passion. It gives children freedom to talk, walk, think and act in a carefree environment where they can become socially and emotionally strong. Parenting in Islam accepts children’s interests and attitudes with positive responses and respects their rights with warmth and love. It particularly develops moral awareness so that children can distinguish between right and wrong and also understand that they need to abide by rules and regulations. Lastly literature also reports that parenting in Islam does not allow any sort of harassment, coercion, frightening and unjust environment for the little angels.

Process Modification for Improvement in Conventional Reactive Printing of Cotton Fabric

Current study was based on the imperative constituent’s replacement of the reactive printing paste for cotton printing. They are sodium alginate, sodium bicarbonate and urea. Although sodium alginate is a natural thickener and environment friendly, but its availability and cost are the major concern which motivated the researcher to replace it with some better constituent. Other main part of the printing paste recipe is urea. Urea is nitrogen containing compound and it causes water stream pollution. It supports the reactive dyes molecule in solubility and moisture management to the fabric. Moisture helps the dye shade to remain sharp and shine during steaming process. The third and final replacement was sodium bicarbonate. Alkali is prerequisite in printing as reactive dyes form covalent bond to cellulosic cotton in alkaline condition. However, alkali hydrolyzes the dye molecules as well. Also, it has detrimental effects towards environment. Sodium alginate was replaced with synthetic acrylic thickener and tamarind kernel powder after its carboxy methyl substitution. Its degree of substitution was dignified by using both dry and wet methods. 0.654 was the DS value with dry method and 0.661 was the DS value with wet method. Urea was replaced with nitrogen free polymer i.e. polyethylene glycol 400 which increased dye solubility. Sodium bicarbonate was replaced with tri chloro acetic acid. Tri chloro acetic acid dissociated at high temperature around 100℃ and became alkaline (as required for fixation) during steaming process of the printed fabric. Five Mono chloro triazine and one vinyl sulphone reactive dye was selected for reactive printing. One conventional recipe was prepared with sodium alginate (2%), sodium bicarbonate (2.5%) and urea (15%) and six modified recipes were prepared against standard recipe 1. Recipe 2 included acrylic synthetic thickener (3%) and the rest of the chemicals were same as recipe 1. Recipe 3 and 4 have mixed ratio of SA and AST. Recipe 5 was prepared by using TCAA (4%) and CMTKP (6%). Recipe 6 by adding PEG-400 (2%) in recipe 5. In recipe 7, PEG-400 (1%) reduction in recipe 6. All 7 seven recipes were used in 6 reactive dyes at two dose levels (2% and 4%). There were total 84 trials of reactive printing and each trial was accessed with 9 tests. Sum K/S and shade strength, penetration of the dyes into the fabric, staining on the white ground of the fabric, washing fastness (change in shade and staining), rubbing fastness (dry and wet), light fastness, perspiration fastness (acidic and basic), sharpness of the edges, fabric hardness and cost saving. After running 6 colours at different dose levels, it was confirmed that recipe 6 is best in all aspects. However, based on cost and results, recipe 7 had better outcomes than recipe 1.