327,371 research outputs found
Democratic Welfare State as Visualised by the Quaid-i-Azam
No full textThe Quaid-i-Azam, Muhammad Ali Jinnah, is known more for his political achievements than for his socio-economic thought. Last two decades, however, have seen a continuous flow of books containing his speeches, statements, messages, interviews, discussions in pre-independence legislative bodies and addresses in the Constituent Assembly of Pakistan. Even a cursory look at this vast literature shows that he was not only concerned with the political aspect of sub-continent’s independence movement but also consistently expressed his views regarding the socio-economic uplift of masses in general and Muslim society in particular. These views in their bare essentials reflect a remarkable continuity of approach from the earlier days of his political career to the period he occupied the position of Governor General of Pakistan. Actually, he became more and more expressive and forthright as the prospects of Pakistan coming into existence became bright. When Pakistan finally appeared as a sovereign nation on the map of the world, he openly rejected the prevailing economic system as having failed to do justice between man and man and to eradicate friction from the international field.
Stochastic system identification via particle and sigma-point Kalman filtering
No full textIn this paper, joint identification for structural systems, characterized by severe nonlinearities
(softening) in the constitutive model, is pursued via the Sigma-Point Kalman Filter (S-PKF) and the Particle
Filter (PF). Since a formal proof of the effects of softening in a stochastic structural system on the accuracy
and stability of the filters is still missing, we comparatively assess the performances of S-PKF and PF. We
show that the PF displays a higher convergence rate towards steady-state model calibrations and the S-PKF
is less sensitive to the measurement noise. Both S-PKF and PF are robust, even if they tend to get unstable
when a structural failure is triggered
Health Monitoring of Flexible Structures Via Surface-mounted Microsensors: Network Optimization and Damage Detection
No full textFlexible and composite structures often develop hidden damages, e.g. cracks or delamination between laminae or phases. Such events could be sensed through embedded structural health monitoring (SHM) systems, but past experimental studies in the literature proved that embedding sensors for SHM purposes may decrease the reliability of the structure, as the sensor acts as an inclusion. In former studies, the authors proposed to adopt a surface-mounted SHM approach based on inertial MEMS (micro electro-mechanical systems) sensors, which has two advantages: it is low cost and also it avoids the afore-mentioned detrimental effects on the endurance limit state of the structure. However, the low accuracy of the MEMS sensors and the type of response that they can measure may hinder an effective monitoring of the structural state; this can be overcome through redundancy and an efficient sensor placement. In this article, an automated approach is discussed for obtaining the optimal topology of a sparse MEMS sensor network. In this regard, the scenarios are assumed unknown in terms of extent and location of stiffness degradation due to damage. The optimal sensor locations are obtained via maximization of the global sensitivity of the measurements to damage. The method can be also implemented in a multi-scale framework, to efficiently handle (micro) sensors, (meso) damaged regions and (macro) structural components of (by far) different sizes. Data related to composite specimens and panels are discussed, with the aim of assessing the identifiability of damage through self-adapting theoretical/numerical (digital) twins of the monitored structures
Aggression in Malaysian adolescents: Validation of the IRPA self-report to measure reactive and proactive aggression
No full textDahamat Azam, N., Novin, S., Oosterveld, P., & Rieffe, C. (2019). European Journal of Developmental Psycholog
Aggression in Malaysian adolescents: Validation of the IRPA self-report to measure reactive and proactive aggression
No full textDahamat Azam, N., Novin, S., Oosterveld, P., & Rieffe, C. (2019). European Journal of Developmental Psycholog
Health impact of dietary selenium nanoparticles on mahseer fish
No full textQuaid I Azam Univ, Fisheries & Aquaculture Lab, Dept Anim Sci, Fac Biol Sci, Islamabad, PakistanUNESP, Ctr Aquicultura, Jaboticabal, SP, BrazilQuaid I Azam Univ, Natl Ctr Phys, Islamabad 45320, PakistanUNESP, Ctr Aquicultura, Jaboticabal, SP, Brazi
Galois Ring GR (2(3),8) Dependent 24 x 24 S-Box Design: An RGB Image Encryption Application
No full textAn S-box is based on Boolean functions which are essentially the foundation of symmetric cryptographic systems. The Boolean functions are used for S-box designing in block ciphers and exploited as nonlinear components. Boolean functions with optimal nonlinearity and upright cryptographic stuffs play a significant role in the design of block ciphers. Traditionally 8x8 S-box is a 16x16look up table over Galois field GF and has 112 feasible upper bonds for nonlinearity. A 24x24 S-box over Galois field GFis not viable as the computer memory does not support it. In this paper for the construction of 24x24S-box a rout is adopted via maximal cyclic subgroup of the multiplicative group of units of Galois ring GR The newly constructed S-box has much higher confusion capability than any of 8x8 S-box. To judge the impact of this new 24x24 S-box an RGB color image encryption application is demonstrated. Initially, in the proposed encryption scheme we use 24x24 S-box for confusion in RGB channels of plain image, however for diffusion linear permutation P= is operated and then by the use of exclusive-or an encrypted image is obtained. Thus, we introduce a novel technique by which 24 binary bits are divided into 3 bytes and each one deals R, G and B channel of the color image separately. A comparison with chaos and DNA based image encryption schemes shows the performance results of this novel RGB image encryption and observed as meeting the standard optimal level. Hence this 24x24 S-box dependent encryption method replaces 8x8S-box based RGB color image encryption scheme.Quaid I Azam Univ, Dept Math, Islamabad, PakistanInst Space Technol, Dept Appl Math & Stat, Islamabad, PakistanQuaid I Azam Univ, Dept Comp Sci, Islamabad, PakistanUniv Estadual Paulista, Dept Matemat, Sao Jose Do Rio Preto, SP, BrazilUniv Estadual Paulista, Dept Matemat, Sao Jose Do Rio Preto, SP, Brazi
Replication Data for: One-Step Enhancer: Deblurring and Denoising of OCT Images
No full textOCT datasets of pork larynx and rabbit eyes, supporting the findings of Li, S.; Azam, M.A.; Gunalan, A.; Mattos, L.S. One-Step Enhancer: Deblurring and Denoising of OCT Images. Appl. Sci. 2022, 12, 10092. https://doi.org/10.3390/app121910092
On locally contractive fuzzy set-valued mappings
No full textWe prove the existence of common fuzzy fixed points for a sequence of locally contractive fuzzy mappings satisfying generalized Banach type contraction conditions in a complete metric space by using iterations. Our main result generalizes and unifies several well-known fixed-point theorems for multivalued maps. Illustrative examples are also given.The third author thanks the support of the Ministry of Economy and Competitiveness of Spain, Grant MTM2012-37894-C02-01.Ahmad, J.; Azam, A.; Romaguera Bonilla, S. (2014). On locally contractive fuzzy set-valued mappings. Journal of Inequalities and Applications. 2014(74):1-10. doi:10.1186/1029-242X-2014-74S11020147
Development Priorities of the Founding Father of Pakistan
No full textA close reading of the speeches and statements of the founding father of Pakistan, Quaid-i-Azam Muhammad Ali Jinnah, brings forth a striking consistency of understanding and approach towards priorities that the nation must determine to move steadily on the road to progress and development. These priorities were—in that order—education, industrial development and defence. Political historians generally present descriptive analyses of what appear to be radically different phases of the Quaid’s passage to lead the nation to its destiny—freedom. But at no point in any phase does one come across a weakening of resolve to advocate the priorities of Education, Industry and Defence—EID, for short. No better acronym of happiness would be possible for the Muslims of British India, EID being happiness and progress for them literally as well as religiously. After the adoption of the Pakistan Resolution in March 1940, the Quaid reiterated these priorities time and again. There is a noticeable accent in his speeches to specify the ramifications of these three pillars of progress. The most succinct statement of priorities came in March 1941. While addressing the Pakistan Session of Punjab Muslim Students Federation, the Quaid said “There are at least three main pillars which go to make a nation worthy of possessing a territory and running the government……..One is education. . . . Next, no nation and no people can ever do anything very much without making themselves economically powerful in commerce, trade and industry. And lastly, when you have got that light of knowledge by means of education and when you have made yourselves strong economically and industrially, then you have got to prepare yourselves for your defence against external aggression and to maintain internal security”.
- …
