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International Journal of Agricultural and Biological Engineering 2019年第4期12卷 162-168页

作者： Tariq khan Hizbullah khan Department of Environmental Sciences University of Haripur22640Pakistan Department of Environmental Sciences University of Peshawar25000Pakistan

Assessing water pollution at basin level is a challenging *** this study,the environmental sustainability of grey water footprints(WFgrey)of Peshawar Basin in Pakistan was *** release of nitrogen(N)and phosphorus(P)from point and non-point sources during the period 1986 to 2015 were *** pollution level(WPL)for normal and 10%-50%future reduced runoff in Kabul River as a result of construction of dams was *** described in Water Footprint Assessment Manual and grey Water Footprint Accounting guidelines were *** showed that 30-year annual average of N and P discharges were 24.5×10^(3)t/a and 10.9×10^(4)t/a *** discharge of N and P from non-point sources contribute 97%and 99%respectively.N related WFgrey was 50×10^(8)m^(3)/a and 50×10^(9)m^(3)/a for *** of N was within the sustainable limit for all reduced runoff scenarios while P-related WPL for normal runoff exceeded sustainable limits and was worse in each reduced runoff *** study confirms the deteriorated water quality of Kabul River and the findings may be helpful for future planning and water resource management of the basin.

关键词： sustainability grey water footprint nitrogen phosphorus water pollution Kabul River Pakistan

Monte-Carlo simulation of a stochastic differential equation

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Plasma Science and Technology 2017年第12期19卷 6-14页

作者： Arif ULLAH Majid khan M KAMRAN R khan 盛正卯 Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of ChinaHefei 230026People's Republic of China Department of Physics Quaid-i-Azam University Islamabad Pakistan Department of Physics Institute of Fusion Theory and SimulationsZhejiang UniversityHangzhou 310027People's Republic of China Department of Physics COMSATS Institute of Information TechnologyChack ShahzadIslamabadPakistan Department of Physics Abdul Wali Khan University23200 MardanKPKPakistan

For solving higher dimensional diffusion equations with an inhomogeneous diffusion coefficient,Monte Carlo（MC） techniques are considered to be more effective than other algorithms, such as finite element method or finite difference method. The inhomogeneity of diffusion coefficient strongly limits the use of different numerical techniques. For better convergence, methods with higher orders have been kept forward to allow MC codes with large step size. The main focus of this work is to look for operators that can produce converging results for large step sizes. As a first step, our comparative analysis has been applied to a general stochastic ***, our formulization is applied to the problem of pitch angle scattering resulting from Coulomb collisions of charge particles in the toroidal devices.

关键词： Monte-Carlo simulation stochastic differential equations toroidal plasmas numerical methods

Stokes' First Problem for an MHD Burgers Fluid

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Communications in Theoretical Physics 2013年第1期59卷 99-104页

作者： Masood khan Department of Mathematics Quaid-i-Azam University

This work is related to the flow of a magnetohydrodynamic Burgers *** flow of an incompressible conducting Burgers fluid in the presence of a uniform transverse magnetic field over a plate that is moved suddenly is *** the application of the Laplace and Fourier sine transforms techniques,the exact analytical expressions for the velocity field and associated shear stress are determined in simple *** are written as a sum of steady-state and transient *** graphical results are plotted for different values of indispensable parameters and some interesting results are *** corresponding solutions for the hydrodynamic Burgers fluid appear as the limiting cases of the obtained solutions.

关键词： Stokes' first problem Burgers fluid Laplace and Fourier sine transforms exact solutions

Sentiment Analysis of Low-Resource Language Literature Using Data Processing and Deep Learning

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Computers, Materials & Continua 2024年第4期79卷 713-733页

作者： Aizaz Ali Maqbool khan Khalil khan Rehan Ullah khan Abdulrahman Aloraini Department of IT and Computer Science Pak-Austria Fachhochschule:Institute of Applied Sciences and TechnologyHaripur22620Pakistan Software Competence Center Hagenberg Softwarepark 32aHagenberg4232Austria Department of Computer Science School of Engineering and Digital SciencesNazarbayev UniversityAstana010000Kazakhstan Department of Information Technology College of ComputerQassim UniversityP.O.Box 1162BuraydahSaudi Arabia

Sentiment analysis, a crucial task in discerning emotional tones within the text, plays a pivotal role in understandingpublic opinion and user sentiment across diverse *** numerous scholars conduct sentiment analysisin widely spoken languages such as English, Chinese, Arabic, Roman Arabic, and more, we come to grapplingwith resource-poor languages like Urdu literature which becomes a challenge. Urdu is a uniquely crafted language,characterized by a script that amalgamates elements from diverse languages, including Arabic, Parsi, Pashtu,Turkish, Punjabi, Saraiki, and more. As Urdu literature, characterized by distinct character sets and linguisticfeatures, presents an additional hurdle due to the lack of accessible datasets, rendering sentiment analysis aformidable undertaking. The limited availability of resources has fueled increased interest among researchers,prompting a deeper exploration into Urdu sentiment analysis. This research is dedicated to Urdu languagesentiment analysis, employing sophisticated deep learning models on an extensive dataset categorized into fivelabels: Positive, Negative, Neutral, Mixed, and Ambiguous. The primary objective is to discern sentiments andemotions within the Urdu language, despite the absence of well-curated datasets. To tackle this challenge, theinitial step involves the creation of a comprehensive Urdu dataset by aggregating data from various sources such asnewspapers, articles, and socialmedia comments. Subsequent to this data collection, a thorough process of cleaningand preprocessing is implemented to ensure the quality of the data. The study leverages two well-known deeplearningmodels, namely Convolutional Neural Networks (CNN) and Recurrent Neural Networks (RNN), for bothtraining and evaluating sentiment analysis performance. Additionally, the study explores hyperparameter tuning tooptimize the models’ efficacy. Evaluation metrics such as precision, recall, and the F1-score are employed to assessthe effectiv

关键词： Urdu sentiment analysis convolutional neural networks recurrent neural network deep learning natural language processing neural networks

Robust Half-Metallicity and Magnetic Properties of Cubic Perovskite CaFeO_(3)

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Chinese Physics Letters 2013年第4期30卷 192-196页

作者： Zahid Ali Iftikhar Ahmad Banaras khan Imad khan Materials Modeling Center Department of PhysicsUniversity of MalakandChakdaraDir(L)Pakistan Department of Physics Hazara UniversityMansehraPakistan

Theoretical studies of the cubic perovskite CaFeO3 are performed using the full potential linearized augmented plane-wave method with ggA+*** calculated structural parameters are consistent with the experimental *** tolerance factor reveals the cubic phase of the *** spin polarized electronic band structures and densities of states as well as the integer value of the magnetic moment of the unit cell(4μB)demonstrate that CaFeO_(3)is half *** in CaFeO_(3)is due to Fe^(+4)–O^(2)–Fe^(+4)superexchange *** robust properties of the compound show that with their compression up to a certain critical lattice constant,known as the robust transition lattice constant,an abrupt change in the electronic and magnetic properties occurs;the compounds lose their integer magnetic moment and become metallic.

关键词： integer cubic magnetic

Bio-capped and green synthesis of ZnO/g-C_(3)N_(4) nanocomposites and its improved antibiotic and photocatalytic activities: An exceptional approach towards environmental remediation

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Chinese Journal of Chemical Engineering 2023年第4期56卷 215-224页

作者： Iltaf khan Chunjuan Wang Shoaib khan Jinyin Chen Aftab khan Sayyar Ali Shah Aihua Yuan Sohail khan Mehwish KButt Humaira Asghar School of Environmental&Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212100China College of Agriculture Shihezi UniversityShihezi 832003China Key Laboratory of Biology and genetic Improvement of Horticultural Crops Northeast Agricultural UniversityHarbin 150030China Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits and Vegetables College of AgronomyJiangxi Agricultural UniversityNanchang 330045China Department of Pharmacy University of SwabiKhyber Pakhtunkhwa 94640Pakistan Department of Physics University of Agriculture FaisalabadFaisalabad 38040Pakistan Department of Chemistry Government College University FaisalabadFaisalabad 38000Pakistan

In this research study, we have synthesized the bio-capped ZnO/g-C_(3)N_(4) nanocomposites by employing lemon juice(Citrus limon) as a stabilizer and mediator. Fruitfully, lemon juice which contains various acidic functional groups and citric acid has the capability to block the surface of g-C_(3)N_(4) from chemical reactivity and activated the surface of g-C_(3)N_(4) for various reactions. Consequently, the agglomeration behavior and controlled shape of g-C_(3)N_(4) has also been achieved. Our experimental results i.e. XRD,TEM, HRTEM, PL, FS, XPS, and PEC have confirmed that the lemon juice mediated and green g-C_(3)N_(4)(L-CN) have good performances and remarkable visible light photocatalytic activities as compared to the chemically synthesized g-C_(3)N_(4)(CN). Furthermore, the small surface area and low charge separation of g-C_(3)N_(4) is upgraded by coupling with Zn O nanoparticles. It is proved that the coupling of Zn O worked as a facilitator and photoelectron modulator to enhance the charge separation of g-C_(3)N_(4). Compared to pristine lemon-mediated green g-C_(3)N_(4)(L-CN), the most active sample 5Zn O/L-CN showed ~ 5-fold improvement in activities for ciprofloxacin(CIP) and methylene blue(MB) degradation. More specifically,the mineralization process and degradation pathways, and the mineralization process of ciprofloxacin(CIP) and methylene blue(MB) are suggested. Finally, our present novel research work will provide new access to synthesize the eco-friendly and bio-caped green g-C_(3)N_(4)nanomaterials and their employment for pollutants degradation and environmental purification.

关键词： Bio-caped green g-C_(3)N_(4) Lemon juice mediators ZnO/g-C_(3)N_(4)nanocomposite Environmental remediation Degradation pathways

DURABILITY PERFORMANCE AND DIMENSIONAL STABILITY OF POLYPROPYLENE FIBER REINFORCED CONCRETE

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Journal of green Building 2018年第2期13卷 20-41页

作者： Ali Mardani-Aghabaglou SüleymanÖzen Muhammet gökhan Altun Department of Civil Engineering Uludag UniversityNilufer-BursaTurkey

In this study, the durability performance and dimensional stability of polypropylene fiber reinforced concrete mixture were investigated. For this purpose, two series of concrete mixtures, including a 0.45 water/cement ratio was prepared both in the absence and presence of fiber. A CEMI 42.5 R type portland cement and crushed limestone aggregate with a maximum particle size of 25 mm were used. In addition to the control mixture without fiber, three different concrete mixtures were prepared by adding polypropylene fiber as 0.4%, 0.8% and 1% of total volume into the mixture. The time-dependent fresh state properties, strength, ultrasonic pulse velocity, transport properties, drying shrinkage and freeze-thaw resistance of concrete mixtures, sodium sulfate attack and abrasion were investigated comparatively. Test results demonstrated that utilization of fiber affected the fresh properties of the concrete mixtures negatively. However, the 0.8% fiber-bearing mixture showed the highest performance in terms of durability and dimensional stability. Beyond this utilization ratio, the durability performance of the concrete mixture was negatively affected. The risk of nonhomogeneous dispersion of the fiber in the mixture was relatively high in the excess fiber-bearing mixture. Consequently, with the formation of flocculation in the mixture the void ratio of concrete mixture increased.

关键词： fresh properties durability performance dimensional stability polypropylene fiber reinforced concrete

giant hepatic hydatid cyst: A case report

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World Journal of gastroenterology 2007年第16期13卷 2388-2389页

作者： Ali Ezer Tar■k Zafer Nursal Turgut Noyan gkhan Moray Department of general Surgery Baskent University Faculty of Medicine 06490-Ankara Turkey

Large type 1 cysts are prone to perforation. Furthermore, insufficient drainage with subsequent abscess is a frequent problem of large cysts. We report here a case of a 19-year old man who was admitted to the hospital with pain in the right upper quadrant and epigastric region. An asymmetrical right upper quadrant enlargement was detected on physical examination. UItrasonography and computerized tomography revealed a type 1 giant hydatid cyst in the right hepatic lobe, measuring 16 cm in diameter. During operation, partial cystectomy and drainage were done. The large dead space was obliterated by the ＇sandwich＇ method. Omentum and gelatin sponges were used to fill the cavity. The postoperative period was uneventful and the patient was discharged on the 5^th postoperative day.

关键词： Echinococcosis Surgery Residual cavity

Laparoscopic management of totally intra-thoracic stomach with chronic volvulus

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World Journal of gastroenterology 2013年第35期19卷 5848-5854页

作者： Toygar Toydemir gkhan Cipe Oguzhan Karatepe Mehmet Ali Yerdel Department of general Surgery Istanbul Surgery Hospital Department of general Surgery Medical School of Bezmialem Vak f University

AIM:To evaluate the outcomes of patients who underwent laparoscopic repair of intra-thoracic gastric volvulus(IgV)and to assess the preoperative ***:A retrospective review of a prospectively collected database of patient medical records identified14 patients who underwent a laparoscopic repair of *** procedure included reduction of the stomach into the abdomen,total sac excision,reinforced hiatoplasty with mesh and construction of a partial *** perioperative data,operative details and complications were *** patients had at least 6 mo of ***:There were 4 male and 10 female *** mean age and the mean body mass index were 66years and 28.7 kg/m2,*** patients presented with epigastric discomfort and early *** was no mortality,and none of the cases were converted to an open *** mean operative time was235 min,and the mean length of hospitalization was 2 *** were no intraoperative *** minor complications occurred in 3 patients including pleuraleffusion,subcutaneous emphysema,dysphagia and delayed gastric *** minor complications resolved spontaneously without any *** the mean follow-up of 29 mo,one patient had a radiological wrap herniation without *** remains symptom free with daily ***:The laparoscopic management of IgV is a safe but technically demanding *** best outcomes can be achieved in centers with extensive experience in minimally invasive esophageal surgery.

关键词： Laparoscopic procedure Hiatal hernia Stomach Volvulus Mesh repair

MHD Flow of an Oldroyd-B Fluid through a Porous Space Induced by Sawtooth Pulses

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Chinese Physics Letters 2011年第8期28卷 161-164页

作者： Masood khan Zeeshan Department of Mathematics Quaid-i-Azam UniversityIslamabad 44000Pakistan

We investigate the unsteady magnetohydrodynamic(MHD)flow of an Oldroyd-B fluid through a porous space induced by sawtooth *** fluid is assumed to be electrically conducting in the presence of a transverse uniform magnetic *** porous space is taken into account using modified Darcy's law for the Oldroyd-B *** solutions of the governing problem are obtained by using the Laplace transform *** effects of the magnetic parameter,the permeability of the porous space and the elasticity parameter of the fluid are studied on the flow characteristics.

关键词： method field porous