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Ferroelectric Behavior of Batio3_Nife2 O4 Composites

Thesis Info

Author

Fareeha Batool

Department

Department of Physics, QAU

Program

Mphil

Institute

Quaid-i-Azam University

Institute Type

Public

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

2015

Thesis Completion Status

Completed

Page

81

Subject

Physics

Language

English

Other

Call No: Diss / M.Phill / PHY / 1070

Added

2021-02-17 19:49:13

Modified

2023-02-19 12:33:56

ARI ID

1676715907190

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کبوتر، گدھ تے سَپ دی دوستی

کبوتر، گدھ تے سَپ دی دوستی

کسے جنگل وچ کبوتر تے کبوتری اک درخت اتے آہلنا پے کے رہندے سن۔ دونویں بہت خوش سن۔ کسے وی قسم دا اوہناں نوں فکر نہ سی۔ جنگل وچوں اوہ دانہ چگدے تے آرام نال زندگی گزار رہے سن۔ حالانکہ اوتھے کئی ہور پرندے تے جانور وی رہندے سن۔ پر ایہناں دا کسے نال کوئی میل جول نہ سی۔ اک دن کبوتری نے کبوتر نوں آکھیا کہ ساہنوں ایتھے رہندے کئی سال ہو گئے ساڈا کوئی دوست نئیں۔ تسی نال دے درخت اتے رہ رہے گدھ نال دوستی کرلو تاں جے کدے ساہنوں اوہناں دی مدد دی لوڑ پوے یاں اوہناں نوں ساڈی مدد دی لوڑ پوے تاں اک دوجے دی مدد کر سکیے۔ کبوتر نوں کبوتری دی اک گل پسند آئی تے اگلے دن اوہ دوستی دا پیغام لے کے گدھ دے گھر گیا تے اوس دے سامنے ساری رکھی۔ گدھ نے کبوتر دی گل نال اتفاق کیتا۔ دوست بنن مگروں کبوتر نے گھر آ کے ساری گل کبوتری نوں دسی تے اوہ سن کے بہت خوش ہوئی۔

کجھ دناں پچھوں کبوتری نے کبوتر نوں سپ نال دوستی لاون لئی گھلیا جو نالے والے درخت دی جڑاں وچ رہندا سی۔ اوس نال دوستی توں بعد اوہ دونویں بے فکر ہو گئے۔ کبوتر، گدھ تے سپ کدے کدے اک دوجے دے گھر جاندے، خیر خیریت پچھدے تے اپنے گھر واپس آ جاندے۔ انج اوہناں دی زندگی بہت چنگی لنگھ رہی سی۔

اک رات انج ہویا کہ جنگل وچ کجھ شکاری آئے۔ رات ہوون پاروں اوہ جنگل توں باہر جاون دا رستہ بھل گئے۔ اوہناں رات جنگل وچ ٹھہرن دا فیصلہ کیتا تے ڈیرے اوس درخت لائے جتھے کبوتر دا آہلنا سی۔ رات دے ہنیرے توں بچن لئی اوہناں سکے پتے تے ٹہنیاں...

Assessment of Quality of Life in Chronic Renal Disease Patients Undergoing Hemodialysis at Public Hospital, Lahore QoL in Hemodialysis patients

Quality of life of chronic renal disease patients is affected by several factors, depending on stage of disease, type of treatment and sociodemographic factors Objective: To assess the quality of life undergoing hemodialysis patients Methods: A cross-sectional study was carried out at Sir Ganga Ram Hospital, Lahore during February to May-2019. Patients suffering from chronic renal disease were included in the study and uncooperative patients were excluded in the study. Total 100 samples of chronic renal disease patients were selected through non-probability convenient sampling technique. Patients were assessed through pre-tested questionnaire. SPSS version 21.0 was used for data analysis Results: According to results 39% patients reported that they were suffering from depression, 47% patients of chronic renal disease were unemployed, 28% patients were malnourished and 98% patients were having 3 or more dialysis sessions per week. Also only 26% patients thought that quality of life of older patients is better while 74% considered it poor. Only 77% patients thought that quality of life of middle aged patients is better while 23% patients considered that quality of life of middle aged patients was poor.42% patients thought that quality of life of young aged patients is better while 58%considered it poor Conclusions: Malnutrition, unemployment and hypertensionare the factors affecting the quality of life in patients undergoinghemodialysis in this study. The quality of life of middle aged patients was comparatively better.

Robust Control System Design for a Class of Uncertain Nonlinear Systems

Robust Control System Design for a Class of Uncertain Nonlinear Systems The work presented in this thesis is an endeavor to combine two nonlinear control frameworks in order to utilize the beneficial attributes of adaptive backstepping and sliding mode control or integral sliding mode control techniques. The adaptive backstepping method is capable of eliminating external disturbances and dynamically estimating the unknown parameters. This technique solves the problem of relative degree which is the main drawback of conventional sliding mode control method. It is also globally effective for the stability of the nonlinear control systems. The sliding mode control is another widely used method due to its robustness against matching uncertainties. The robustness of nonlinear system can be enhanced by adding an integral term with the sliding manifold of sliding mode control method. This attribute is achieved by eliminating the reaching phase of sliding mode control which makes it immune against fast parametric variations that occurs during reaching phase. On the basis of this synergy, new strategies have been proposed which are named as Adaptive Backstepping Higher Order Integral Sliding Mode Control (ABHOISMC), and Adaptive Backstepping Integral Sliding Mode Control (ABISMC), and based on our simulation studies, they are found to be more robust against both matching and mismatching uncertainties. During the implementation of newly proposed techniques, it is not necessary to transform the system into triangular form which is generally needed in the conventional backstepping procedure. The first proposed scheme, the ABISMC, is applied to control the parameters of continuous stirred tank regulator plant with its model expressed mathematically in a non-triangular form. The simulation results establish the efficacy of the proposed scheme. As a second example, the ABISMC is also applied for the tracking of the desired output in a field-controlled direct-current motor. The simulation results are found to be very convincing. Finally, the second proposal, the ABHOISMC, is applied on a theoretical plant expressed in a semi-strict feedback form; the resulting simulation findings substantiate our claims.