Search or add a thesis

Advanced Search (Beta)
Home > Capstone Project 2: A Study of Narrow Fabrics [Textile Engineering Programme]

Capstone Project 2: A Study of Narrow Fabrics [Textile Engineering Programme]

Thesis Info

Author

Abdul Haseeb Mujahid

Supervisor

Akhtar Zia

Department

University of Management and Technology

Institute

University of Management and Technology

Institute Type

Private

City

Lahore

Province

Punjab

Country

Pakistan

Thesis Completing Year

2009

Thesis Completion Status

Completed

Page

65 . CD

Subject

Textiles

Language

English

Other

Report presented in partical requirement for textile engineering Advisor : Akhtar Zia; EN; Call No: TP 677.02864 ABD-R

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676712911762

Similar


Loading...
Loading...

Similar Books

Loading...

Similar Chapters

Loading...

Similar News

Loading...

Similar Articles

Loading...

Similar Article Headings

Loading...

پرویز شاہدی

پرویز شاہدی
افسوس ہے کہ گزشتہ مئی میں اردو کے مشہور شاعرپرویز شاہدی کلکتہ میں انتقال کرگئے۔عمر۵۷برس کی پائی۔اصل نام محمد اکرام حسین تھا۔نسباً سید تھے، وطن پٹنہ تھااور۱۹۱۰ء میں وہیں پیدا ہوئے تھے۔ اردو، فارسی دونوں زبانوں میں ایم۔اے کیا تھا۔اسی زمانہ میں کسی جذباتی صدمہ سے دوچارہوئے اورکلکتہ میں سکونت اختیار کرلی ادھر بارہ تیرہ برس سے کلکتہ یونیورسٹی میں اردو کے لیکچرر تھے اور اُن کی وجہ سے اس شعبہ میں جیسے زندگی کی نئی روح پیداہوگئی تھی۔ شعر گوئی کا ملکہ فطری تھا،چنانچہ اُن کے ساتھیوں کابیان ہے کہ دس برس کی عمر سے ہی شعرکہنے لگے اورمشاعروں میں شرکت کرنے لگے تھے۔ انھیں قدرت تودونوں پر تھی لیکن ان کوفطری مناسبت بہ نسبت نظم کے غزل سے زیادہ تھی۔یہاں تک کہ اُن کی نظم بھی غزل کاآہنگ رکھتی تھی۔اپنی عمر اورشاعری دونوں کے عہد شباب میں ’’ترقی پسند‘‘ہوگئے تھے لیکن چونکہ طبیعت میں سلامتی اورذوق میں استواری تھی اس لیے اُن کی’’ترقی پسندی‘‘صرف افکار تک محدود رہی۔شاعری اور خصوصاً غزل کی قدیم روایات سے انھوں نے رشتہ منقطع نہیں کیا۔جتنے اچھے شاعر تھے ترنم بھی اتنا ہی ولولہ انگیز اورموثر تھا۔کلکتہ میں جب پہلی بار(غالباً ۱۹۴۹ء میں) اُن کی معرکہ آراء نظم’’تضاد‘‘
میں عدوئے قہرمانی تو رفیق شہریاری
مری زندگی جہادی تری زندگی فراری
تجھے خار و خس کی سطوت پہ یقین پائداری
مرے ہر نفس میں رقصاں مرا عزم شعلہ باری
تری آنکھیں سہمی سہمی تری فکر لرزی لرزی
مری روح بپھری بپھری کہ لگائے ضرب کاری
سنی ہے توپورے مجمع میں جوش وخروش کایہ عالم تھا کہ گویا طبل جنگ بج چکا ہے اورفوج مارچ کرنے والی ہے،یہی واقعہ میری اوراُن کی دوستی کانقطۂ آغاز تھا۔ وقت گزرنے کے ساتھ ساتھ یہ دوستی اس درجہ مستحکم اورمضبوط ہوتی چلی گئی کہ وہ میرے نہایت عزیز اورمخلص دوست ہوگئے۔جنوری۱۹۶۷ء...

احادیث کی روشنی میں عصر حاضر کے چند اہم مالی معاملات کا تحقیقی جائزہ

Islam is a global religion and has provided a comprehensive code of life applicable in every age. Economy is one of its foremost priorities and gives basic principles to its followers to exercise a legal and favorable mean of earning. In Islamic economic system there are many ways and sources that have been prohibited or have not been recommended. As in our daily life we face those modes of financing, so in this article they have been comparatively analyzed in light of the sayings of the Prophet (S.A.W) in order to explore its legitimacy.

Development of Mechanically Robust Ultra-Thin Polymer Films Using Covalent Layer by Layer Assembly of Epoxy Compounds

Nanofabrication of two component epoxy adhesives via covalent linkage was carried out using Layer by Layer (LbL) multilayer assemblies, adopting a dipping as well as alternate spraying-dipping technique for the deposition onto pre-activated silicon or quartz substrates and gold nanoparticles (Au-NPs). Dipping technique was employed for the curing of cresol novolac epoxy resin (CNER), phenol epoxy novolac resin DEN-438® (PNER) and Araldite MY-720 with poly(ethylenimine) (PEI) and tetraethylenepentamine (TEPA) on silicon and quartz surfaces. Thus the LbL film architectures obtained for various adsorption times and polymer concentrations were (PEI/CNER)n, (PEI/PNER)n, (PEI/MY-720)n, PEI(CNER/TEPA)n/CNER, PEI(PNER/TEPA)n/PNER and PEI(MY- 720/TEPA)n/MY-720 (where n = number of layer pairs deposited). The classical conditions of polyelectrolyte multilayer build-up for covalent LbL assembly were optimized for the construction of multilayers having linear growth increment with respect to the number of layers chemisorbed. The thickness of each layer pair was measured using an ellipsometer and found in the range of 1 to 4 nm depending on the epoxy compound used. The multilayer films so prepared were quite homogeneous and highly reproducible. UV-Visible spectroscopy was also employed to monitor the chemisorption of UV active chromophores. The optimised epoxy-amine network layers thus formed by covalent LbL assembly of epoxy resins were then applied onto Au-NPs films of the architecture (PAH/Au-NPs)5. These epoxy protected Au-NPs films having architecture (PAH/Au-NPs)5/(PEI/CNER)10 and (PAH/Au-NPs)5/(PEI/PNER)10 were tested for their mechanical robustness with the help of a rubbing machine. The surface morphology of the rubbed samples was studied by AFM, although certain grooves appeared, but there is no significant difference in overall film thickness before and after rubbing test. So, epoxy protected Au-NPs film proved to be quite strong to endure 60 rubbing cycles as compared to virgin Au-NPs film which were mechanically much weak. The adsorption process was further optimised to get fast curing process by employing various accelerators, increasing the polymer concentration, decreasing the adsorption time and also by reducing the number of layer pairs. Lupasol-HF, proved to be an exceptional curing agent after dialysis (to get narrow but high molar mass PEIdia), for the curing of various epoxy resins at room temperature. The spraying of PEIdia (40 mg mL-1) for 10 s followed by dipping for 10 min in epoxy solution (100 mg mL-1) greatly enhanced the speed of covalent LbL adsorption process. Although curing of these films at elevated temperature resulted in ultimate robustness with no loss in thickness after 20 rubbing cycles, yet room temperature curing was also employed for a specified time period by storing the films in air tight containers. The epoxy-amine film thickness for the protection of Au-NPs was found to be 10 nm for CNER and 6 nm for PNER. The ellipsometer data revealed that after more than 60 rubbing cycles, the epoxy protected Au-NPs film lost ca. 6% of initial film thickness. Moreover, the study has proved to be an economical preparation of more effective covalent LbL assemblies, both in terms of cost and time. Therefore, the epoxy-amine network has great potential to protect the underlying weak Au-NPs films and many such future applications.