139 research outputs found
Robust integrated lateral guidance and control of UAVs
No full textIn this paper, a novel guidance scheme is presented for UAVs using the Integrated Guidance and Control (IGC) framework. The proposed guidance scheme is derived using H∞ Loop Shaping Design Procedure (LSDP). To recover from an initial cross track error, the proposed guidance algorithm produces such aileron commands that ensure the roll maneuvers without saturating the roll angle. The shaping of the open loop plant is carried out using the pre and post weights and then the robust stabilization is done by using the normalized left coprime factor uncertainty. The performance and robustness of the system are verified by introducing parametric uncertainties in to the system model. The results of the proposed scheme are verified by implementing it on a complete 6-DOF nonlinear model in the presence of wind disturbance. The simulation results indicate the effectiveness and robustness of the proposed guidance algorithm
Folio
No full textZahoor Hussain Chohan-Editorial; Riaz Hussain-Article-Muhammad (SAW) and the People of India and Pakistan. pp. 7-11; Ahsan Waseem-Poetry-The Land of the Pious. pp. 11; Sultan Khan-Article-Quaid as a Political Philosopher. pp. 12-14; Aniza Zaheer-Article-Building-Up the National Fiber. pp. 15-19; Muhammad Tanvir-Essay-Importance of Discipline. pp. 19-20; Hameed Nizamee, Edited by Saleem Mansur Khalid-Article-Iqbal and his Urdu Poetry a General Survey Based on his Urdu Works. pp. 21-33; Amjad Ali Bhatti-Essay-The Prophet's Message to the Muslims. pp. 34-36; Arif Qureshi-Poetry-Salute to the Quaid. pp. 36; Tahir Kamran-Essay-Rise of Muslim History Writing. pp. 37-39; Muhammad Ahsan Pasha-Essay-Where do we Stand. pp. 40-42; Irshad-ul-Hasan-Poetry-The Walls of Glass. pp. 43-44; Rubina Nazir Chohan-Poetry-Gift. pp. 44; Sohail Ahmad Sharyar-Essay-What Is Literature. pp. 45-47; Muhammad Ahsan Pasha-Poetry-A Funny Commentary on Chaucer. pp. 47-48; Irshad-ul-Hasan-Article-Symbolism. pp. 49-61; Gilani Kamran-Essay-Discovering Folklore. pp. 62-64; Mohammad Tanvir Butt-Essay-Father of the Nation. pp. 65-67; Tariq Hameed Rathore-Poetry-Pleasant Manner. pp. 68; Syed Saadat Mehdi-The Days at College. pp. 68-69; Muhammad Akmal-Three Narrations. pp. 69-70; Wasif Rashid-Friendship & Friends. pp. 71; Ateeq-ur-Rahman-May You Have. pp. 71; Ali Awais-Quotes. pp. 72; Hammad Raza-Definitions. pp. 72; Akhlaque Ahmad-Mind and its Problems. pp. 73-74; Kamran Mahboob-Notice for the Students. pp. 75; Sana-ur-Rahman-Article-Emancipation of Women. pp. 76-80; Dalip Kumar Rajpoot-Best Use of Youth. pp. 80; Akhtar Ali Khan-Essay-Way to Economic Progress. pp. 81-82; Zia-ul-Haq-Essay-The World First Democracy. pp. 82-83; Zahor Hussain Chohan-On the Eve of Retirement. pp. 84; Folio [Urdu]. 272 p.College Buildings. after English title; Quaid-e-Azam. after contents; Allama Iqbal. 1 page after contents; Dr Shaukat Ali, Principal. 2 pages after contents; Prof Talat Mahmood. 3 pages after contents; Students Union 1988-1989. after page 84; Editorial Board 1988-89. after editorial Urdu pag
Supercapacitors: An Emerging Energy Storage System
No full textElectrochemical capacitors are known for their fast charging and superior energy storage capabilities and have emerged as a key energy storage solution for efficient and sustainable power management. This article comprehensively explores the fundamental principles, architectural advancements, and material innovations underpinning supercapacitor technology. It covers the evolution of supercapacitor performance, the comparison of pseudocapacitors, double-layer capacitors, electrolytes, and the integration of innovative nanostructured materials, such as carbon nanotubes, transition metal oxides, MXene, and graphene, and it investigates the hybrid systems that bridge the gap between capacitors and batteries. The article also discusses the future perspectives of supercapacitor technology. By examining emerging trends and recent research, this review provides a comprehensive overview of electrochemical capacitors as an emerging energy storage system.Financial support from the Spanish Ministry of Science and Innovation (FJC2020-043023-I) is acknowledged.With funding from the Spanish government through the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2023-001263-S).Peer reviewe
Estimation of heritability and genetic advance for various metric traits in seven F2 populations of bread wheat (Triticum aestivum L.)
No full textHeritability estimates provide information about the traits that are
transmitted from parents to their offsprings and it has a crucial role in
selection criteria to improve grain yield. The purpose of the present study
was to compute heritability and genetic advance of seven F2 populations
derived through cross combinations of five parental varieties/lines of bread
wheat Iqbal-2000, Lasani- 2008, 9444, 9432 and 9436. Data were recorded for
seven metric traits: plant height, days to heading, flag leaf area, peduncle
length, number of kernels per spike, kernel weight per spike and grain yield
per plant. The estimates of heritability were low to high for all the traits
studied except for kernel weight per spike which had a moderate to high value
of heritability. Results depict that all the mentioned traits can be enhanced
easily due to high values of heritability and phenotypic variations. The
cross combinations 9436 × Iqbal-2000 and 9436 × Lasani-2008 had high
heritability for most of the traits. Therefore, selection could be practiced
among wheat crosses with special emphasis on crosses, namely 9436 ×
Iqbal-2000, to improve grain yield per plant
علامہ اقبال اور ابنِ خلدون کا عمرانیاتی فلسفہ
No full textIt is worth mentioning that there lies an acute resemblance in the philosophy of sociology between both the Muslim philosophers i.e Allama Muhammad Iqbal and Ibn-e-Khaldoon. Both these towering philosophers give, continuous efforts and ever moving attitude an ample emphasis for the survival of Group or community life .Ibn-e-Khaldoon’s philosophy is rational in nature while Iqbal’s metaphysical. But unanimously both the philosophers give paramount importance to the Religion of Islam to be adapted as a code of life for the people of their groups or communities. Ibn-e-khaldoon emphatically states that partisanship plays a key role in the evolution of civilization. Surprisingly enough, Iqbal's knowledge of the self is basically the evaluated form of partisanship. Above mentioned philosophers strongly weigh and recommend the Bedouin life style for the nourishment and inculcation of spiritual feelings for the people of their groups and communities. The under discussed research paper is a keen devour to project the ambling resemblance between the sociological philosophy of above mentioned Muslim Philosophers
Relative Efficacy of Different Insecticides Against
No full textAbstract: Present research was carried out to evaluate the comparative efficacy of five new insecticides viz., diafenthiuron (polo 50%SC), thiamethoxam (actara 25%WG), acetamiprid (diamond 20%SP), imidacloprid (confidor 20%SL) and thiacloprid (calypso 24 % OD) at field recommended doses against jassid, Amrasca devastans on cotton variety Bt- 121 grown at farmer field Chak No. 253/R.B, Faisalabad. Insecticides sprayed when population of jassid reached to economic threshold level (ETL) i.e., 1- 1.5/leaf. The data regarding mean number of jassid per leaf was taken and converted in to mean percentage mortality to find out differences among the treatments. The results of present study showed that Imidacloprid, diafenthiuron, acetamiprid and thiamethoxam were most effective insecticides against jassid up to seven days after application. While, Imidacloprid and diafenthiuron gave maximum mortality during first spray (92.42 and 88.56%) and second spray (90.87 and 85.67%) after 72 h of application
Food Preservation within Multi-Echelon Supply Chain Considering Single Setup and Multi-Deliveries of Unequal Lot Size
No full textIntricacy of the supply chains for deteriorating products, involving multiple retailers with unequal lot sizes and multiple deliveries is simplified in this article by optimizing the replenishment cycle, investment in preservation technology, and number of deliveries. This study proposes a multi-tier supply chain model consisting of a single manufacturer and multiple retailers. A single-setup multiple deliveries (SSMD) policy is adopted considering the synchronized cycle time of manufacturers with that of retailers and the delivery of unequal lot size for each retailer. Preservation technology is used at retailers to minimize the effects of deterioration in a way that the magnitude of decrease in deterioration reduces for additional investment in preservation technology. A centralized supply chain model is proposed by defining a nonlinear mathematical model for maximizing total profit through an analytical optimization technique and an algorithm. Numerical experiments are exhibited to validate the applications of the provided model. The results exhibit that the proposed preservation policy increases the product’s lifetime and the total profit by reducing the number of shipments/transportation and increasing the lot size. The SSMD policy helps to reduce the preservation cost and increase the total profit. Some managerial insights are provided for the decision makers for applying the proposed model
Impact of Self-Directed Career Attitude on OCB in SMEs: Mediating Role of Trust
No full textThe self-directed career attitude involves assuming responsibility and authority over one's career trajectory and actively directing one's professional development. This study examines the impact of self-directed career attitude (SDCA) on organizational citizenship behavior (OCB). This study also examines the mediating role of trust between the self-directed career attitude and OCB. Four hypothesis was developed to test the direct and indirect relationship. Primary data was collected through a questionnaire and analyzed through partial least square structural equation modeling. The SPSS was used to analyze the demographic information. The underpinning theory used in this study was self-determination theory. The test results show the positive direct relationship of SDCA, OCB and trust. The results also show the significant positive mediating effect of trust between SDCA and OCB. This research contributes to comprehending the mechanisms and consequences of behavior on human resources, which is essential for effective career management and developing appropriate HR policies
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