Search or add a thesis

Advanced Search (Beta)
Home > Security Model of wireless Sensor Networks.

Security Model of wireless Sensor Networks.

Thesis Info

Author

Adnan Ashraf Arain

Supervisor

Manzoor Ahmed Hashamani; Bhawani Shankar Chowdhry

Department

Communication System & Networks (CSN)

Program

PhD

Institute

Mehran University of Engineering and Technology

Institute Type

Private

City

Jamshoro

Province

Sindh

Country

Pakistan

Thesis Completing Year

2011

Thesis Completion Status

Complete

Subject

Communication System & Networks (CSN)

Language

English

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676729202382

Similar


Loading...
Loading...

Similar Books

Loading...

Similar Chapters

Loading...

Similar News

Loading...

Similar Articles

Loading...

Similar Article Headings

Loading...

جی ۔ عبدالرشید

جناب جی۔ عبدالرشید
میں ۱۹۸۸ء کے آخر میں پہلی مرتبہ مدراس گیا تھا، اس کی اطلاع اپنے کرم فرما اور دارالمصفین کے سابق رفیق افضل العلماء الحاج مولانا محمد یوسف کو کن عمری کو پہلے کردی تھی، ان کے پیر میں چوٹ آگئی تھی اور صاحب فراش تھے، اس لیے انہوں نے نیو کالج کے عربی کے لکچرر جناب جی۔عبدالرشید صاحب کو بھیجا کہ وہ اپنے ہمراہ مجھے ان کے دولت خانہ پر لے آئیں، گیا تو کوکن صاحب نے دوسرے روز کھانے پر بلایا۔ چنانچہ عبدالرشید صاحب کے ساتھ وہاں گیا، اب وہ میرے ساتھ سایہ کی طرح ہوگئے۔ اپنے یہاں کھانے پر بھی مدعو کیا، مدراس کے تمام قدیم و جدید تعلیمی اداروں، قابل دید مقامات اور ساحل سمندر کی سیر کرائی۔ معارف کے خود خریدار بنے اور مزید خریدار بنانے کا وعدہ کیا۔ مدراس اسٹیشن چھوڑنے آئے۔
عبدالرشید صاحب سے گاہے ماہے خط و کتابت رہتی تھی۔ ابھی نومبر میں دارالسلام عمر آباد جانے کا پروگرام بنا تو انہیں اور جناب عبیداﷲ صاحب کو خطوط لکھے کہ آپ لوگوں سے ملنے کا بڑا اشتیاق ہے، عبدالرشید صاحب نے جواباً تحریر فرمایا:
’’خوشی ہوئی کہ مدت دراز کے بعد آپ سے ملنے کا موقع مل رہا ہے آپ مدراس تشریف لائیں اور ملاقات نہ ہو؟ نیو کالج میں ہفتے میں دو دن دینیات کے کلاس منعقد ہوتے ہیں جس میں صوم و صلوٰۃ و اخلاقیات کے موضوع پر درس دیا جاتا ہے، اس سال اس کورس پر دو کتابیں انگریزی میں شائع ہوئی ہیں۔ کالج کی تعطیلات کے بعد دسمبر پہلی تاریخ کو کھل رہا ہے انشاء اﷲ ۲؍ تاریخ کی صبح ان کتابوں کی اجرا کے لیے ایک جلسہ صبح میں منعقد کیا گیاہے۔آپ کی شرکت اس جلسے میں ہمارے لیے باعث برکت ہوگی اور کتابوں کا اجرا آپ کریں باعث سعادت ہوگا‘‘۔
ان...

Why I left and why I want to leave: A Phenomenological Perspective of Asian Employees Turnover

The current research was conducted to explore the possible causes of actual employee turnover and turnover intentions. Using Post positivism research philosophy, phenomenological qualitative research method was used to explore the phenomena. Semi-structured interviews of 21 bank employees (selected using purposive sampling) were conducted which were analyzed using NVivo 12. The research findings suggest many uniques themes in order to overcome the problem of employee turnover, especially for banks. The themes which were developed consisted of five significant themes such as the bank appraisals and reward system was identified as biased and based more on favoritism, employee feel that their actual performance is not evaluated properly and sincerely. The other factor concluded by the research findings is that the employees are dissatisfied with the salary and benefits, as they felt that there should a consistent effort to identify employee personal needs which should be customized accordingly in their compensation plans as well. The very essential factor recognized in the research finding was the upward and downward communication gaps with the employees. Such perceptions generated related issues as the employees felt that branches are much deprived to have a direct communication channel with the top team heads. The other very essential factor discovered after the investigation of the phenomena of turnover is lack of career growth. Lastly, another important cause of employee turnover was the transfers, which took place without the consent of the employee. Employees felt demotivated due to such transfers and changes in their work locations. Recommendations and future research directions have been at the end of the research

Theoretical Studies of Strongly Correlated Lanthanide Intermetallics Lnx3 X=In, Sn

In this thesis the structural, elastic and electronic properties as well as electric eld gradient of the strongly correlated intermetallics LnX3 (Ln = La-Gd, X = In, Sn) have been investigated by using the full potential linearized augmented plane wave plus local orbital (FP-LAPW+lo) method within the framework of density functional theory. The structural properties of these compounds are calculated by LDA, GGA, meta-GGA, WC, B3PW91, LDA+U and GGA+U schemes. The calculated lattice parameters are found consistent with the available experimental results. Our results show contraction of lattice constant along the series and the divalent state of Eu is also veri ed. The itinerant and localized behavior of electrons in f -states of these compounds is also discussed. These compounds have 4f orbitals and hence strong electron-electron correlation e ect is expected, therefore, the electronic properties are also calculated with the Hubbard potential U (GGA + U and LDA + U) and the e ect of Hubbard potential on the density of states is discussed in details. The relativistic e ects are also considered by including the spin-orbit coupling (SOC). The spin-orbit coupling predict the correct electronic properties and also reveals the splitting of 4f states of the rare-earth elements. It a ects the band structures of the compounds and induces non-degeneracies in some degenerate states in the vicinity of the Fermi level. Furthermore, the SOC e ect increases from left to right in the lanthanide series in the LnIn3 and LnSn3, which shows interesting nature of SOC e ect in the periodic table. The elastic constants of these compounds are also calculated. Our calculated values for the elastic constants of the compounds are closer with the available experimental values as compared to the other theoretical results. The mechanical properties for the compounds under studies such as shear iii modulus, bulk modulus, Young''s modulus, Kleinman parameters, anisotropic ratio, Poisson''s ratio, Lame''s coe cients are also determined . The Cauchy pressure and B/G ratio are also investigated to evaluated the ductile and brittle nature of LnIn3 and LnSn3 compounds. The Sound velocities for shear and longitudinal waves, and Debye temperature also explored on the basis of mechanical properties. The Electriceld gradients (EFG) are also calculated for the rare-earth intermetallics LnIn3 and LnSn3 (Ln = La, Ce, Pr and Nd) using the GGA, GGA + U, as well as GGA + SOC. Our results show that the EFGs calculated by GGA+U approach are in better agreement with the available experimental values of the M ossbauer spectroscopy as compared to the other theoretical schemes. Our results show nonzero EFGs at rare-earth sites in the AFM phase. The present research will add some theoretical understanding of these materials and will alsoll the gap about some of the physical properties of these compounds in literature.