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Url Filtering Using Big Data Architecture

Thesis Info

Author

Nasir Ali Khan

Supervisor

Abid Khan

Department

Department of Computer Science

Program

RCS

Institute

COMSATS University Islamabad

Institute Type

Public

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

2014

Thesis Completion Status

Completed

Subject

Computer Science

Language

English

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676720096682

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منشی عبدالعزیز انصاری

منشی عبدالعزیز صاحب انصاری
دارالمصنفین کے خیر خواہوں اور خدمت گزاروں کو یہ خبر سن کر بڑا رنج و غم اور سخت ملال ہوا کہ اس کی مجلس انتظامیہ کے ایک معزز، سرگرم، مخلص اور قدیم رکن جناب منشی عبدالعزیز صاحب انصاری یکم دسمبر کو بمبئی میں وفات پاگئے، اِناﷲِ وَ اِنا اِلَیہ رَاجِعُون، یہاں سے ان کا تعلق حضرت مولانا سید سلیمان ندویؒ کے دور میں قائم ہوا، جو بعد میں محکم سے محکم تر ہوتا گیا، وہ بمبئی میں رہتے تھے، لیکن ان کا وطن اعظم گڑھ ہی تھا، اس لیے دارالمصنفین سے ان کا بڑا گہرا قلبی اور جذباتی تعلق تھا۔ اکثر کہا کرتے تھے کہ اس نے ہماری عزت و شہرت میں چار چاند لگادیا ہے، اس سرزمین پر وہ لوگ چلتے پھرتے دکھائی دیتے ہیں جنھوں نے اس کو علم و فن کا لالہ زار بنادیا ہے، وہ اس کی مجلس انتظامیہ کے جلسوں میں نہایت پابندی سے تشریف لاتے، ان کے قیمتی مشوروں سے دارالمصنفین کو بڑا فائدہ پہنچتا، مشکل وقتوں میں اس کے لیے سینہ سپر رہتے، دارالمصنفین کو مالی اعانت کی ضرورت ہوتی تو اس کے کارکنوں کو بمبئی ملاتے اور اپنے یہاں دعوتوں پر اصحاب ثروت کو مدعو کرکے اس کی امداد کرنے پر آمادہ کرتے، شبلی کالج سے بھی خاص تعلق رکھتے اور اس کی ترقی سے بڑی دلچسپی لیتے، تقریباً چالیس برس سے اس کی مجلس انتظامیہ کے صدر تھے، ان کا انتخاب ہمیشہ بلامقابلہ ہوتا تھا۔
ان کی رسمی تعلیم زیادہ نہ تھی، لیکن بڑے علم دوست اور اردو فارسی کا اچھا ذوق رکھتے تھے، وہ بمبئی میں ٹرانسپورٹ کا کاروبار کرتے تھے، جہاں ایک سے بڑھ کر ایک تاجر تھے مگر جو عزت، نیک نامی اور قدر و منزلت انھوں نے حاصل کی وہ کم کسی کو نصیب ہوئی، وہ مہمانوں کے لیے ہر...

Varietal Comparison of Proximate Composition and Mineral Profiling of Pakistan Native Barberry Powder Proximate Composition and Mineral Profiling of Barberry Powder

Berberis Vulgaris fruit (barberry)also commonly known as “zereshk” is one of the world’s renowned medicinal plant with highly nutritious and therapeutic values, world widely. It is an elongated, 8-10mm long, bright red colored, fruit. Berberidaceae family; B. Vulgaris fruit is very useful tonic for liver, heart, pancreas, gallbladder and kidneys. It prevents chronic bleeding disorders, purifies blood, lowersblood cholesterol level, blood pressure and most importantly it help to treat diabetes. In addition it is effective in treatment of parasitic liver, kidney stones, gout, colon cancer, prostate inflammation, fever, asthma and malaria. Objective: This study is aimed to check the mineral and chemical profiling of Pakistan native barberry fruit. Methods: Proximate analysis of three different varieties (BVF01, BVF02, and BVF03) of B. Vulgaris fruitfrom different three regions Azad Kashmir, Chitral and Gilgit Baltistandemonstrated a nutritional composition in range of 77.43, 70.08, 73.12%for moisture, 0.98, 0.76, 0.89% for crude ash, 0.42, 0.33, 0.39% for crude fat, 1.53, 1.32, 1.44% for crude protein, 2.76, 2.64, 2.75% for crude fiber, 16.88, 24.87, 21.41% for Nitrogen free extract (NFE). The different varieties of barberry contained the ranges of minerals such ascalcium2724.70,2584.13, 2693.59ppm, magnesium 998.46,944.06, 986.32ppm, potassium12189.75, 11,114.21, 12021.19ppm, sodium 1402.16, 872.38, 1269.44ppm, iron 449.67, 334.58, 396.90ppm, zinc8.42, 13.78, 29.5ppm, copper 15.11, 5.45, 11.63ppm, manganese 32.5, 25.86, 28.91ppm(mg/L), respectively. Conclusions: The type of barberry cultivated in Azad Kashmir is the best having good proximate composition and highest minerals amount as compared to Chitral and Gilgit Baltistan cultivated barberry

Liquid Phase Exfoliation of Graphite to Graphene & its Applications in Polymeric Nanocomposites

Nanocomposites are superior to conventional one in terms of its mechanical performance. Pristine /functionalized graphene sheets (FGS) were incorporated into a range of model polymers. Solvent aided blending was adopted for better dispersion of FGS and graphene sheets in these polymers. Graphene was added to selected polymers like polyurethane (PU), poly (vinyl chloride) (PVC), poly (acrylonitrile) (PAN), poly (vinyl alcohol) (PVA) and poly (vinyl acetate) (PVAc) in order to improve the mechanical performance of these materials. Different forms of graphene nanosheets like pristine/FGS with different lateral dimensions were selected in order to study its effects on the mechanical performance of selected polymers in terms of young’s modulus, tensile strength and elongation at break. Graphene nanosheets were functionalized with octadecylamine and were incorporated in polyurethane and it was observed that 2.5 vol% is the mechanical percolation level for this polymer as above this loading there was improvement in the mechanical performance of polyurethane while at this loading the elongation at break was suffered slightly. Similarly in case of poly(vinyl chloride) a critical loading(1.5wt%) was observed at which there was improvement in mechanical properties of these polymers and almost no elongation at break was observed for this loading and the modulus determined in this case was superior to calculated from Halpin-Tsai equation. Two type of graphene nanosheets with different flake size (one and 3.5 micron) were incorporated in poly (acrylonitrile). Its comparative study was conducted it was observed the big flake improved the performance of polymers in terms of modulus and UTs while the response of small flake in terms of elongation at break was better than big flakes. Large area graphene oxide were synthesized and were introduced to poly(vinyl alcohol) and the role of these nano fillers were very pronounced in terms of modulus, UTS and elongation at break was not disturbed but slightly improved. Graphene flakes were studied through transmission electron microscopy(TEM) and Raman spectroscopy while dispersion of these flakes were in selected polymers was confirmed by scanning electron microscopy(SEM) and the mechanical performance of these nanocomposites were conducted on Zwick-Roell tensile tester. Graphene-based v polymer nanocomposites can be a new versatile soft material with numerous advantages. Graphite was exfoliated to graphene using NMP and water as solvent as well. 63mg/ml concentration was obtained during tip sonication in NMP while in case of water as media the maximum concentration obtained was 7mg/ml using sodium cholate as surfactant. The concentration of graphene nanosheets were studied through UV-visible spectroscopy while quality of flakes was studied through TEM and Raman spectroscopy.