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Development of a Gamma Dosimeter Using Cr-39 Detector

Thesis Info

Author

Dogar Ashiq Hussain

Department

Pakistan Institute of Engineering & Applied Sciences, Nilore

Program

MSc

Institute

Quaid-i-Azam University

Institute Type

Public

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

1998

Thesis Completion Status

Completed

Page

x, 53

Subject

Engineering & Applied Sciences

Language

English

Other

Call No: DISS/M.Sc PIEAS/29

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676715821481

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کہتے ہیں اس جہاں کے یہ قصے حقیر ہیں

کہتے ہیں اس جہاں کے یہ قصے حقیر ہیں
جاناں تمھارے خواب بھی کتنے شریر ہیں

ہم آسمانِ زیست کے تابندہ لوگ تھے
ہم تیرے در پہ آ کے بنے جو فقیر ہیں

مصرع کمر ہے، شعر سی تصویر ہے تری
تجھ خوبرو کو دیکھنے آئے جو میرؔ ہیں

تیری رضا پہ ہے سرِ تسلیم خم مرا
تجھ زلف کے اے شوخ پرانے اسیر ہیں

گل ہو، گہر ہو، لعل ہو یا پورا چاند ہو
جاناں تمھارے حسن کے آگے حقیر ہیں

بزمِ فضاؔ میں ناز کا کیا کام گل بدن
یاں آئے بادشاہ بھی بن کر فقیر ہیں

مسؤولية المجتمع في معالجة البطالة على سبيل الوجوب في ضوء السنة

The phenomenon of unemployment is one of the problems, which affects the development of individuals and society. Total unemployment or underemployment may be permanent or temporary. Its negative and damaging effects lay an everlasting result especially in times of economic recession. The importance of this study is to explore the role of individual, and methods of solution in the light of Sunnah. Hadith and Sunnah clearly mark the virtues of work and its value and positive impact on the community. Thus we see the greatness of our religion in this concern for human beings and preserving their dignity, and to find ways to ensure decent life, where there is neither no vacuum, nor unemployment.

Development and Appraisal of Economical and Sustainable Approach for Weed Management in Drill Seeded Aerobic Rice Oryza Sativa L.

Traditional rice cultivation by puddling and manual transplanting is a labor intensive activity and require significant quantities of water and power. The increasing scarcity of water threatens the sustainability of transplanted rice. In many areas of Asia, transplanting of rice is being replaced by direct seeding as farmers respond to increased labor cost and decreased water availability but weed control is one of the major constraints to direct seeding. So, to control weeds in direct seeded rice studies were designed. Experiments were conducted for two years to develop sustainable and economical methods for managing weeds in aerobic rice grown by direct-seeding at Student’s Farm, Department of Agronomy, University of Agriculture, Faisalabad during the years 2008 and 2009. The first experiment was laid out in RCBD having five weed control approaches; hand weeding, hoeing (with kasula), inter row cultivation with tine cultivator, inter row cultivation with spike hoe and chemical control with Nominee 100 SC along with control (no weeding). Weed dry weight was 300 g m -2 , 257 g m -2 , 225 g m -2 and 157 g m -2 less in hand weeding, hoeing tine cultivator and Nominee 100 SC respectively than no weeding. Maximum fertile tillers were recorded in hand weeding (369.73 m -2 ) and were followed by hoeing (356.94 m -2 ) and tine cultivator (346.78 m -2 ). Hand pulling, hoeing, tine cultivator, Nominee and spike hoe gave 28, 25, 22, 12 and 6% more number of kernels per panicle respectively. Paddy yield was 221, 203, 181 and 105% more in hand weeding, hoeing tine cultivator and Nominee 100 SC respectively than no weeding. Highest net returns (Rs. 56905) were obtained by hand weeding while highest BCR (1.75) was obtained in tine cultivator. A second experiment was laid out in split plot design randomizing inter row cultivation implements in main plots and inter row cultivation frequencies in sub plots. Weed dry weight was 199.16 g m -2 less when tine cultivator was used at 15, 25, 35 and 45 DAS as compared to weed dry weight in inter row cultivation at15 days after seeding (DAS). More fertile tillers in tine cultivator and spike when used at 15, 25, 35 and 45 DAS were observed. Paddy yield was 159% more when tine cultivator was used at 15, 25, 35 and 45 as compared to paddy yield in inter row cultivation at15 DAS. Tine cultivator gave maximum net return and BCR when used at 15, 25, 35 and 45 DAS. Tine cultivator gave maximum net return and BCR when used at 15, 25, 35 and 45 DAS. Both experiments were replicated thrice. Net plot size was 3.0 m x 6.0 m in both experiments. Weed control by tine cultivator displayed excellent rice yields when repeated cultivation was done, and with the reduced labor inputs compared to hand weeding and hoeing, is a viable and economical method.