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Power Transformer Condition Monitoring by Dissolved Gas in Oil Analysis

Thesis Info

Author

Sajid Hussain.

Department

Deptt. of Electrical Engineering, UET

Institute

University of Engineering and Technology

Institute Type

Public

Campus Location

UET Main Campus

City

Lahore

Province

Punjab

Country

Pakistan

Thesis Completing Year

2000

Thesis Completion Status

Completed

Page

69 . : ill. ; diag., 28 Cm.

Subject

Engineering

Language

English

Other

Include references.; Call No: 621.314 S 15 P

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676712544137

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شیخ عبداﷲ

شیخ عبداﷲ
کشمیر کی گل پوشی وادی کے شیر شیخ عبداﷲ اس دارفانی سے کوچ کرکے اب وہاں ہیں جہاں ایک روز سب کو جاکر بارگاہ ایزدی میں اپنا اپنا اعمال نامہ پیش کرنا ہے، اﷲ تعالیٰ ان کو اپنی رحمت بے پایاں سے سرفراز فرمائیں، آمین۔
نجی مجلسوں میں اکثر یہ گفتگو رہتی ہے کہ ہندوستان میں انیسویں صدی میں جتنی عظیم اور قدر آور شخصیتیں پیدا ہوئیں، اتنی بیسویں صدی میں نہ ہوسکیں، مگر اس صدی میں جو چند عظیم المرتبت شخصیتیں پیدا ہوئیں، ان میں شیخ عبداﷲ بھی تھے، ان کی زندگی شروع سے فعال، متحرک اور ہنگامہ پرور رہی، اپنی جوانی میں مہاراجہ کشمیر کی استبدادیت سے ٹکرلی اور جیل گئے، پاکستان کی تحریک اور اس کے قیام کے بعد محمد علی جناح سے بھی تصادم مول لیا، ۱۹۴۷؁ء کے بعد کشمیر کا الحاق ہندوستان سے کرکے اپنے سیکولرزم کا ثبوت دیا، اور پاکستان سے جنگ بھی کی، لیکن پھر کشمیر کی مخصوص حیثیت کی خاطر، اپنے دوست پنڈت جواہر لال نہرو سے بھی ان کی وزارت عظمٰی کے زمانہ میں سیاسی اور دستوری نبرد آزمائی کی جس کے نتیجہ میں اپنی جوانی کے بہترین ایام قید اور نظربندی کی صورتوں میں گزارے، حکومت ہند سے ان کی معرکہ آرائی الف لیلیٰ کی داستان سے کم نہیں، جھپٹے، پلٹے، پلٹ کر جھپٹے، چھپٹ کر پلٹے، کشمیر کے عوام کے استصواب رائے، حق خود اختیاری اور سرزمین کشمیر کی آزادی کے نعرے بلند کرتے رہے، مگر جب یہ فضا میں صرف گونج کررہ گئے، تو پھر حکومت سے مصالحت کرلی، کشمیر کے وزیراعظم تو نہیں، لیکن وزیراعلیٰ بن گئے، اور اسی حیثیت سے ان کی وفات بھی ہوئی، اور جنازہ بھی اٹھا، جس کے بے پناہ ہجوم سے کشمیر میں ان کی محبوبیت کا اندازہ ہوا۔
وزیراعلیٰ کی حیثیت سے ان کا زریں...

RESILIENCE AS A MEDIATOR IN RELATIONSHIP BETWEEN ANXIETY AND PERSONALITY AMONG PHYSIOTHERAPISTS-A CROSS-SECTIONAL STUDY

Background and Aims: The COVID-19 outbreak is the biggest global crisis in generations having severe and far-reaching repercussions for the health system, creating high prevalence of severe posttraumatic stress symptoms for physical therapists, highlighting the need for psychological help. Therefore, this study aimed to investigate how resilience functions as a mediator in the relationship between anxiety and personality among Karachi based physiotherapists.         Methodology: A cross-sectional study was conducted among physiotherapists of Karachi using a convenience sampling technique from August to December 2021. The data was collected using a 10-Item Personality Inventory, Brief Resilience Scale, and Hamilton Anxiety Rating Scale questionnaire. Results: Among 70 participants, the emotional stability trait (7.6±1.4) had higher mean values on the TIPI. On the HAM-A scale, 81.4% physiotherapists had moderate to severe anxiety followed by 15.7% mild to moderate anxiety whereas 92.9% were shown to have normal resilience. Despite all correlations being negligible, only the association between agreeableness and resilience was non-significantly higher (r=0.83). Conclusion: It was concluded that there was no association between the anxiety state and resilience among physiotherapists, although there was a non-significantly higher relationship between agreeableness and openness to experiences personality traits. A high prevalence of moderate to severe anxiety was noted while using a standard resilience strategy.

Studies on Induction of Systemic Resistance in Rose by Pseudomonas and Bacillus Strains Against Diplocarpon Rosae

The innate plant resistance is an efficient and eco-friendly tool to avoid diseases of agricultural crops. However most of the commercial cultivars are susceptible to different diseases at different susceptibility level. Fungicides are usually the only option that farmers use against these pathogens. These fungicides are hazardous for our environment and human health as these toxify food commodities and ground water reserves. Moreover, pesticides can never be the best option to manage the disease due to their extensive toxicity and minuscule degradability. The innate resistance may be elevated by applying nonpathogenic microbial inducers; thus, termed as induced systemic resistance (ISR). The native rhizospheric bacterial inducers may manage disease by inducing systemic resistance in plants. The similar measure has been adopted to manage black spot disease in rose plants by using Pseudomonas fluorescens RB4 and Bacillus subtilis RB11 as biological inducers. § In the first phase of study, surveys were performed to assess disease attributes of black spot disease of rose caused by Diplocarpon rosae. During this survey, 120 pathogenic isolates of D. rosae were collected. After infecting healthy rose plants with isolates of D. rosae, most virulent strain D. rosae DR19 was selected for further experimentations. § During greenhouse studies, different rhizospheric strains of bacillus and pseudomonas, isolated from rhizosphere of healthy rose plants, were screened for induction of systemic resistance in rose plants against black spot disease. These isolated bacterial strains were interacted with rose plants in the presence of black spot pathogen. Here two strains, viz: P. fluorescens RB4 and B. subtilis RB11 provided most significant reduction in disease index. § Both of these strains induced significant higher amounts of defense related biochemicals including total phenolics, ascorbic acid and some defense related enzymes involved in phenylpropenoid pathway. Moreover, these strains were capable to enhance quantity of defense related physical barriers in plants such as lignin, pectin and cellulose as compared to control plants. § In another independent experiment, effect of P. fluorescens RB4 and Bacillus subtilis RB11 was assessed on nutrient contents and growth attributes of rose plants. These strains significantly enhanced nutrient contents including N, P, K, Ca, Mg, Mn, Zn, Cu and Fe in treated plants. Along with that, growth of rose plants was significantly improved under influence of these bacterial strains. § In next phase of study, different carrier materials such as sugarcane press mud, bentonite, sand, rock phosphate and perlite were used to prepare formulations of best performing bacterial strains. Sugarcane press mud showed maximum viability of bacterial strains after prolonged storage at room temperature followed by ‘bentonite’. Sugarcane press mud based bacterial formulations supported disease managing potential of P. fluorescens RB4 and B. subtilis RB11, and reduced disease index up to 59 and 76% respectively in both season field experiments. This formulation also significantly improved agro economic traits of rose plants. § In last phase of study, potential ISR elicitor present in bacterial inducer was isolated and identified. For this purpose, Column Chromatography and GC/MS techniques were used to analyze metabolites of B. subtilis RB11 for identification of bioactive compound responsible for resistance induction and disease management. It was found that octadecane was the bioactive compound inducing resistance in rose plants against D. rosae. It was also observed that the isolation of octadecane present in B. subtilis RB11 metabolites was directly correlated with the concentration of ethyl acetate in extraction solvent. § To assess the significance of the results obtained during various experiments data was subjected to a number of statistical analyses. These analyses include analysis of variance (ANOVA) and Duncan’s Multiple Range Test (DMRT). From present research it is concluded that P. fluorescens RB4 and B. subtilis RB11, may be successfully used to manage black spot disease of roses caused by D. rosae. These bacterial strains are capable to enhance innate resistance of rose plants along with growth promotion. Moreover, octadecane synthesized by B. subtilis RB11 may be isolated and applied to rose plants as antifungal compound against D. rosae.