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Assessment of Air Temperature Trends in the Source Region of Yellow River and Its Sub-Basins, China
Mudassar Iqbal,Jun Wen,Xin Wang,Yongchao Lan,Hui Tian,Muhammad Naveed Anjum,Muhammad Adnan 한국기상학회 2018 Asia-Pacific Journal of Atmospheric Sciences Vol.54 No.1
Changes in climatic variables at the sub-basins scale (having different features of land cover) are crucial for planning, development and designing of water resources infrastructure in the context of climate change. Accordingly, to explore the features of climate changes in sub-basins of the Source Region of Yellow River (SRYR), absolute changes and trends of temperature variables, maximum temperature (Tmax), minimum temperature (Tmin), mean temperature (Tavg) and diurnal temperature range (DTR), were analyzed annually and seasonally by using daily observed air temperature dataset from 1965 to 2014. Results showed that annual Tmax, Tmin and Tavg for the SRYR were experiencing warming trends respectively at the rate of 0.28, 0.36 and 0.31oC (10 yr)−1. In comparison with the 1st period (1965-1989), more absolute changes and trends towards increasing were observed during the 2nd period (1990-2014). Apart from Tangnaihai (a low altitude sub-basin), these increasing trends and changes seemed more significant in other basins with highest magnitude during winter. Among sub-basins the increasing trends were more dominant in Huangheyan compared to other sub-basins. The largest increase magnitude of Tmin, 1.24 and 1.18oC (10 yr)−1, occurred in high altitude sub-basins Jimai and Huangheyan, respectively, while the smallest increase magnitude of 0.23oC (10 yr)−1 occurred in a low altitude sub-basin Tangnaihai. The high elevation difference in Tangnaihai probably was the main reason for the less increase in the magnitude of Tmin. In the last decade, smaller magnitude of trend for all temperature variables signified the signal of cooling in the region. Overall, changes of temperature variables had significant spatial and seasonal variations. It implies that seasonal variations of runoff might be greater or different for each sub-basin.
A comparative study of linear control strategies on the aerodynamics twin rotor system
Adnan Qayyum Shah,Muhammad Awais,Muhammad Zafar,Ashfaq Ahmed,Muhammad Mudassar,Muhammad Muneer,Memoona Saif,Abdul Razzaq,Seong Ho Jang,김선형,박영권 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.8
This work presents the comparative study among pole-placement (PP), optimalcontrol using output-feedback (OCOF), linear-quadratic regulator (LQR), and PID controllers for the twin rotor multi-input multi-output system (TRMS). The pitch and yaw are key attributes for stabilizing the TRMS MIMO system and control of flight. The main objective of this study is to use these classical controller techniques to monitor the pitch and yaw angles of TRMS and show the result of these techniques. Simulation results depicts the actual performance and reveals how PP outperforms the other techniques.
Analyzing the Impact of Social Distancing on the Stoning Ritual of the Islamic Pilgrimage
Qazi Mudassar Ilya,Muneer Ahmad,Noor Zaman Jhanjhi,Muhammad Bilal Ahmad 한국인터넷정보학회 2022 KSII Transactions on Internet and Information Syst Vol.16 No.6
The COVID-19 pandemic has resulted in a profound impact on large-scale gatherings throughout the world. Social distancing has become one of the most common measures to restrict the spread of the novel Coronavirus. Islamic pilgrimage attracts millions of pilgrims to Saudi Arabia annually. One of the mandatory rituals of pilgrimage is the symbolic stoning of the devil. Every pilgrim is required to perform this ritual within a specified time on three days of pilgrimage. This ritual is prone to congestion due to strict spatiotemporal requirements. We propose a pedestrian simulation model for implementing social distancing in the stoning ritual. An agent-based simulation is designed to analyze the impact of inter-queue and intra-queue spacing between adjacent pilgrims on the throughput and congestion during the stoning ritual. After analyzing several combinations of intra-queue and inter-queue spacings, we conclude that 25 queues with 1.5 meters of intra-queue spacing result in an optimal combination of throughput and congestion. The Ministry of Hajj in Saudi Arabia may benefit from these findings to manage and plan pilgrimage more effectively.
Hussain, Mudassar,Waqas, Omer,Hassan, Usman,Loya, Asif,Akhtar, Noreen,Mushtaq, Sajid,Yusuf, Muhammad Aasim,Syed, Aamir Ali Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.5
Background: There is growing evidence that there are differences in histological and genetic characteristics along with clinical behavior between right- and left-sided colon carcinomas. We have compared various parameters of the two types and assessed associations of the results with prognosis in patients in Pakistan. Materials and Methods: We reviewed 200 cases from our institutional database; 100 cases of right-sided and 100 cases of left-sided colon cancer. Parameters including age, gender, TNM stage, histological features and clinical outcome were analyzed. Results: The patients with right-sided colon cancer were significantly older as compared to their counterparts with left-sided cancer. They presented with a lumbar mass rather than symptoms of obstruction and perforation as seen in left-sided colon cancers, and the histology showed higher percentage of poorly differentiated tumors with advanced pT stage. Moreover, Crohn's-like reactions, intra tumoral lymphocyte responses and other poor prognostic factors like lymph vascular invasion and perineural invasion were more common in right-sided cancers. Conclusions: We found that right- and left-sided colon cancers are different from each other in terms of clinical presentation, histology and clinical behavior. Right-sided colon cancers are more aggressive and are associated with poorer clinical outcome as compared to left sided colon cancers in our population.
Runge-Kutta method for flow of dusty fluid along exponentially stretching cylinder
Waheed Iqbal,Mudassar Jalil,Mohamed A. Khadimallah,Hamdi Ayed,Muhammad N. Naeem,Muzamal Hussain,Souhail Mohamed Bouzgarrou,S.R. Mahmoud,E. Ghandourah,Muhammad Taj,Abdelouahed Tounsi 국제구조공학회 2020 Steel and Composite Structures, An International J Vol.36 No.5
The present manuscript focuses on the flow and heat transfer of the dusty fluid along exponentially stretching cylinder. Enormous attempts are made for fluid flow along cylinder but the study of fluid behavior along exponentially stretching cylinder is discussed lately. Using appropriate transformations, the governing partial differential equations are converted to non-dimensional ordinary differential equations. The transformed equations are solved numerically using Shooting technique with Runge-Kutta method. The influence of the physical parameters on the velocity and temperature profiles as well as the skin fraction coefficient and the local Nusselt number are examined in detail. The essential observations are as the fluid velocity decreases but temperature grows with rise in particle interaction parameter, and both the fluid velocity and temperature fall with increase in mass concentration parameter, Reynold number, Particle interaction parameter for temperature and the Prandtl number.
Waheed Iqbal,Mudassar Jalil,Mohamed A. Khadimallah,Muzamal Hussain,Muhammad N. Naeem,Abdullah F. Al Naim,S.R. Mahmoud,Abdelouahed Tounsi 국제구조공학회 2021 Steel and Composite Structures, An International J Vol.38 No.1
The Runge-Kutta method of 6th-order has been employed in this paper to analyze the flow of Casson nanofluid along permeable exponentially stretching cylinder. The modeled PDEs are changed into nonlinear ODEs through appropriate nonlinear transformations. The aim of the paper is to investigate the effects of different parameters such as Casson fluid parameter, slip parameter, suction parameter, Prandtl number, Lewis number, Brownian motion parameter, and thermophoresis parameter, with the variation of mass concentration profile. Numerical results are attained using a renowned numerical scheme shooting technique and for the authenticity of present methodlogy, the results are verified with earlier open text.
Effect of suction on flow of dusty fluid along exponentially stretching cylinder
Iqbal, Waheed,Jalil, Mudassar,Qazaq, Amjad,Khadimallah, Mohamed A.,Naeem, Muhammad N.,Hussain, Muzamal,Mahmoud, S.R.,Ghandourah, E.,Tounsi, Abdelouahed Techno-Press 2021 Advances in nano research Vol.10 No.3
The present manuscript focuses the effects of suction on the flow of the dusty fluid along permeable exponentially stretching cylinder. Derived PDEs for this work are changed into ODEs by adopting right transformations. Numerical procedure is carried out for the obtained resultant equations by Shooting Technique in accordance with Runge-Kutta (RK-6) technique. Obtained results for the parameters namely, particle interaction parameter, suction parameter and Reynold number parameters are probed thoroughly. Some salient points are: (a) Fluid velocity decreases and the dust phase velocity rises for the higher values of particle interaction parameter; (b) more suction produces retarding velocities for both the phases; (c) high Reynold number slows down the fluid velocity while the speed of dust phase and (d) skin friction coefficient goes high for all these parameters.
Maria Wasim,Aneela Sabir,Muhammad Shafiq,Atif Islam,Mudassar Azam,Tahir Jamil 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.50 No.-
mixed matrix membrane (MMMs) was fabricated in two steps,first by formation of modified substrateand second is deposition of electrospunfibrous layer with varying sepiolite concentration fornanofiltration. MMM3 showed an optimal MgSO4 rejection of 97.6% with 40.8 L/m2 hflux whileMMM5 showed highest MgCl2 rejection of 96.95% withflux of 31 L/m2 h. The fouling data revealed thatmodified surface is effective in improving the antifouling property which caused decrease in theadsorption phenomena of microbes on to the surface. The antibacterial properties of the membranesshowed the inhibition of the growth of Escherichia coli.
Interaction of casson nanofluid with Brownian motion: Temperature profile with shooting method
Iqbal, Waheed,Jalil, Mudassar,Khadimallah, Mohamed A.,Hussain, Muzamal,Naeem, Muhammad N.,Al Naim, Abdullah F.,Tounsi, Abdelouahed Techno-Press 2021 Advances in nano research Vol.10 No.4
In present study, the numerical investigations are carried out for effects of suction and blowing on boundary layer slip flow of casson nano fluid along permeable stretching cylinder in an exponential manner. The modeled PDEs are changed into nonlinear ODEs through appropriate nonlinear transformations. Change in physical quantities like friction coefficient, Nusselt and Sherwood numbers with variation of the aforementioned parameters are also examined and their numerical values are listed in the form of tables. Effects of Reynold number, suction parameter, Prandtl number, Lewis number, Brownian motion parameter and thermophoresis parameter are seen graphically with temperature profile.
Face recognition invariant to partial occlusions
( Azeem Aisha ),( Sharif Muhammad ),( Shah Jamal Hussain ),( Raza Mudassar ) 한국인터넷정보학회 2014 KSII Transactions on Internet and Information Syst Vol.8 No.7
Face recognition is considered a complex biometrics in the field of image processing mainly due to the constraints imposed by variation in the appearance of facial images. These variations in appearance are affected by differences in expressions and/or occlusions (sunglasses, scarf etc.). This paper discusses incremental Kernel Fisher Discriminate Analysis on sub-classes for dealing with partial occlusions and variant expressions. This framework focuses on the division of classes into fixed size sub-classes for effective feature extraction. For this purpose, it modifies the traditional Linear Discriminant Analysis into incremental approach in the kernel space. Experiments are performed on AR, ORL, Yale B and MIT-CBCL face databases. The results show a significant improvement in face recognition.