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Ground movement patterns and shallow foundation performance in Iskenderun coastline during the 2023 Kahramanmaras earthquake sequence

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Earthquake Engineering and Engineering Vibration 2023年第4期22卷 867-881页

作者： Tugce Baser Kamran nawaz Albert Chung Seikh Faysal Ozgun Alp Numanoglu Department of Civil and Environmental Engineering University of Illinois Urbana-ChampaignUrbanaIllinois 61801USA Schnabel Engineering 16300 Christensen Rd Suite 350TukwilaWA 98188USA

This study focuses on the field reconnaissance efforts for investigating ground deformation behavior and building foundation performance in *** structures experienced significant damage or collapsed due to strong ground shaking in the coastal Iskenderun district of Hatay during the 2023 Kahramanmaras earthquake *** buildings were also impacted by ground failure due to liquefaction of deposits in the *** information regarding the general subsurface profile and post-earthquake data collected during the reconnaissance was used to perform simplified liquefaction and lateral spreading *** empirical methods provide first order estimations of settlements and lateral spreading but are not sufficient when the nature of the structure-soil-structure interaction and earthquake sequence is *** of vertical displacements and building tilt,liquefaction manifestations,and structural and foundation parameters potentially affecting foundation settlements including foundation geometry,building contact pressure,and building elastic period were used to evaluate seismic response of the ground and the structures through empirical *** of the buildings exhibited poor to mediocre foundation performance due to liquefaction-prone subsurface profiles,especially on the *** field and numerical research will reveal the cause of significant ground failure in the area as well as refined estimates for the seismic deformations.

关键词： Turkiye earthquake Iskenderun settlement geo-structures liquefaction lateral spreading foundation performance building settlements seismic settlements

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Walsh Hadamard Transform Based Transceiver Design for SC-FDMA with Discrete Wavelet Transform

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China Communications 2017年第5期14卷 193-206页

作者： Arsla khan Amna Arif Tabassum nawaz Sobia Baig Department of Electrical Engineering COMSATS Institute of Information TechnologyLahore Pakistan

This article proposes a new transceiver design for Single carrier frequency division multiple access(SCFDMA)system based on discrete wavelet transform(DWT). SCFDMA offers almost same structure as Orthogonal frequency division multiple access(OFDMA)with extra advantage of low Peak to Average Power Ratio(PAPR). Moreover,this article also suggests the application of Walsh Hadamard transform(WHT)for linear precoding(LP)to improve the PAPR performance of the system. Supremacy of the proposed transceiver over conventional Fast Fourier transform(FFT)based SCFDMA is shown through simulated results in terms of PAPR,spectral efficiency(SE)and bit error rate(BER).

关键词：离散小波变换收发器哈达玛变换正交频分多址接入设计 Hadamard变换沃尔什快速傅里叶变换

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Influence of Filler on the Microstructure, Mechanical Properties and Residual Stresses in TIG Weldments of Dissimilar Titanium Alloys

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Acta Metallurgica Sinica(English Letters) 2021年第10期34卷 1395-1406页

作者： Massab Junaid Fahd nawaz khan Tauheed Shahbaz Haris saleem Julfikar Haider Faculty of Mechanical Engineering Ghulam Ishaq Khan Institute of Engineering Sciences and TechnologyTopi 23640Pakistan Faculty of Materials and Chemical Engineering Department of Materials ScienceGhulam Ishaq Khan Institute of Engineering Sciences and TechnologyTopi 23640Pakistan Advanced Materials and Surface Engineering(AMSE)Research Centre Manchester Metropolitan UniversityChester StreetManchester M15GDUK

The influence of titanium alloy(Ti–5 Al–2.5 Sn) and commercially pure titanium(cp Ti) as fillers on dissimilar pulsed tungsten inert gas weldments of Ti–5 Al–2.5 Sn/cp Ti was investigated in terms of microstructure, mechanical/nano-mechanical properties, and residual stresses. A partial martensitic transformation was observed in the weldments for all the welding conditions due to high heat input. The microstructure evolved in the FZ/cp Ti interfacial region was observed to be the most sensitive to the proportion of α stabilizer in the filler alloy. Furthermore, the addition of filler alloy improved the tensile properties and nano-mechanical response of the weld joint owing to the increased volume of metal in the weld joint. As compared to the Ti–5 Al–2.5 Sn wire, the use of cp Ti filler wire proved to be better in terms of energy absorbed during tensile and impact tests, tensile strength and ductility of the dissimilar welds. An asymmetrical residual stresses profile was observed close to the weld centerline, with high compressive stresses on the Ti–5 Al–2.5 Sn side for both the weldments obtained with and without filler wires. This was attributed to mainly the low thermal conductivity of Ti–5 Al–2.5 Sn. The presence of residual stresses also influenced the nano-hardness profile across the weldments.

关键词： Titanium alloys Dissimilar welding Nano-indentation Residual stresses Tungsten inert gas(TIG)welding Microstructure

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Polyoxymethylene dimethyl ethers synthesis from methanol and formaldehyde solution over one-pot synthesized spherical mesoporous sulfated zirconia

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Chinese Journal of Chemical Engineering 2022年第6期35卷 161-172页

作者： Xiangjun Li Shujun Li Xiaoping Wang Muhammad Asif nawaz Dianhua Liu State Key Lab of Chemical Engineering East China University of Science and TechnologyShanghai 200237China

The synthesis of polyoxymethylene dimethyl ethers as an ideal diesel fuel additive is the current hot topic of modern petrochemical industry for their expedient properties in mitigating air pollutants emission during *** this work,a series of spherical sulfated zirconia catalysts were prepared by a one-pot hydrothermal method assisted with surfactant cetyltrimethylammonium bromide(CTAB).The prepared sulfated zirconia catalysts were used to catalyze PODEn synthesis from methanol and formaldehyde *** characterization(XRD,BET,SEM,TGA,NH_(3)-TPD,FTIR,and Py-IR)were employed to elaborate the structure–activity relationship of the studied catalytic *** results demonstrated that S/Zr molar ratio in precursor solution played an effective role on catalyst morphology and acidic properties,where the weak Brønsted acid sites and strong Lewis acid sites were favorable to the conversion of methanol and formation of long-chain PODEn,*** reaction parameters such as catalyst amount,molar ratio of FA/MeOH,reaction time,temperature and pressure were *** speculated reaction pathway for PODEn synthesis was proposed based on the synergy of Brønsted and Lewis acid sites,which suggested that Brønsted and Lewis acid sites might be advantageous to the activation of polyoxymethylene hemiformals[CH_(3)(OCH_(2))_(n)OH]and methylene glycol(HOCH_(2)OH),respectively.

关键词： Polyoxymethylene dimethyl ethers Spherical sulfated zirconia Methanol Formaldehyde Reaction pathway Synergistic effect

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Numerical Simulation of Reiner–Rivlin Nanofluid Flow under the Influence of Thermal Radiation and Activation Energy over a Rotating Disk

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Computer Modeling in Engineering & Sciences 2022年第6期131卷 1669-1692页

作者： Arfan Shahzad Muhammad Imran Muhammad nawaz Naeem Mohsan Raza Department of Mathematics Government College University FaisalabadFaisalabad38000Pakistan Department of Sciences&Humanities National University of Computer and Emerging SciencesChiniot-Faisalabad CampusFaisalabad38000Pakistan

In current study,the numerical computations of Reiner–Rivlin nanofluid flow through a rotational disk under the influence of thermal radiation and Arrhenius activation energy is *** innovative physical situations,the motile microorganisms are incorporated *** multiple slip effects are considered in the boundary *** bioconvection of motile microorganism is utilized alongside nanofluids to provide stability to enhanced thermal *** Bioconvection pattern in various nanoparticles accredits novel applications of biotechnology like the synthesis of biological polymers,biosensors,fuel cells,petroleum engineering,and the natural *** deploying some suitable similarity transformation functions,the governing partial differential equations(PDEs)of the flow problem are rehabilitated into dimensionless *** accomplished ordinary differential equations(ODEs)are solved numerically through the bvp4c scheme via a built-in function in computational MATLAB *** upshots of some prominent physical and bioconvection parameters including wall slip parameters,thermophoresis parameter,Brownian motion parameter,Reiner–Revlin nanofluid parameter,Prandtl number,Peclet number,Lewis number,bioconvection Lewis number,and the mixed convection parameter against velocity,temperature,nanoparticles concentration,and density of motile microorganism profiles are dichotomized and pondered through graphs and *** presented computations show that the velocity profiles are de-escalated by the wall slip parameters while the thermal and solutal fields are upgraded with augmentation in thermophoresis number and wall slip *** presence of thermal radiation enhances the temperature profile of *** concentration profile of nanoparticles is boosted by intensification in activation ***,the increasing values of bioconvection Lewis number and Peclet number decay the motile microorganisms’field.

关键词： Reiner-Rivlin nanofluid bioconvection motile swimming microorganisms rotational disk multiple slip conditions bvp4c

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Impact of Fractures and Diagenesis on Reservoir Potential of Inner Ramp Paleocene Carbonates Exposed in Western Part of the Lesser Himalayas of Pakistan

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Journal of Earth Science 2023年第2期34卷 536-555页

作者： Waleed Tariq Gohar Rehman Syed Ahsan Hussain Gardezi nawaz Ikram National Center of Excellence in Geology University of PeshawarPeshawarKhyber Pakhtunkhwa 25120Pakistan Department of Geology University of PeshawarPeshawarKhyber Pakhtunkhwa 25120Pakistan Geological Survey of Pakistan Azad Jammu&Kashmir DirectorateMuzaffarabad 13100Pakistan Institute of Geology University of Azad Jammu&KashmirMuzaffarabad 13100Pakistan

The outcrop investigations provide a better comprehension to interrelate facies-diagenesis and fracture networks for the evaluation of reservoir potential of the carbonate *** this paper,we targeted Kahi-Section(Nizampur Basin)and Peeran Tangai-Section(Kalachitta Range)to analyze structural-kinematics,Discrete Fracture Network Modelling,microfacies identification and diagenesis to interpret their impact on reservoir potential of Lockhart Limestone(Paleocene).The structural grain within the study area mostly represents the typical east-west trending tight to overturned folds and north-dipping thrust faults that mimic the north-south Indo-Eurasian ***,a second phase of deformation related to east-west compressions also identified which rotated the axes of preexisting *** analysis revealed that extensional fractures are oriented at high angle to bedding and are differentiated into three orthogonal sets trending northeast-southwest,northwest-southeast and east-west,whereas,the shear fractures formed two conjugate sets trending *** Lockhart Limestone was deposited in the inner ramp setting and microfacies types are packstone,wackestone and wacke-packstone with seven sub-microfacies *** has been identified that the Lockhart Limestone has the heterogeneous distribution of diagenetic and tectonic features throughout its *** observed diagenetic sequence is micritization,calcite cementation,dissolution,neomorphism,pyritization and *** results highlight that open and partially filled fractures may provide an interconnected network to promote fluid mobility,leading to higher values of fracture *** porosity values of the pore matrix were greater than fracture,resulting a significant impact on reservoir storage *** contrast,a negative impact on reservoir potential has been shown by stylolites,veins and dissolution ***,based on the overall studies,the Lockhart Limestone reve

关键词： lockhart limestone discrete fracture network modelling facies-diagenesis reservoir potential Nizampur Basin petroleum geology

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Sludge granulation and efficiency of phase separator in UASB reactor treating combined industrial effluent

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Journal of Environmental Sciences 2007年第5期19卷 553-558页

作者： Abdullah Yasar Nasir Ahmad Muhammad nawaz Chaudhry Aamir Amanat Ali khan Directorate of Research and Development University of the Punjab41-Kamran BlockAllama Iqbal TownLahore-Pakistan.

Sludge granulation and the effect of gas-liquid-solid separator （GLSS） design on the efficiency of upflow anaerobic sludge blanket （UASB） and upflow anaerobic sludge filter （UASF） reactors, operating at HRTs ranging from 3 to 12 h was investigated. VSS/TS ratio gradually increased in both the reactors with increasing sludge age （from 0.5 to more than 0.7 for UASB reactor and 0.012 to 0.043 for UASF reactor）. X-Ray diffraction analysis of the UASF sludge showed the presence of expanding clays revealing its additional absorption capability. Fuoraphyllite and albite precipitation related to excellular polymers of the microbial shell structure, showed the extended growth of microorganisms during sludge granulation. A gradual decrease （82%-69%） in COD removal with decreasing HRT was apparent in UASF reactor. In case of UASB reactor, this decrease was marginal because addition of GLSS device significantly improved （14%-20%） the overall efficiency of the UASB reactor. GLSS enhanced the efficiency of the UASB reactor by increasing the settleability of suspended particles and accelerating the coagulation of colloidal particles due to the velocity gradient.

关键词： sludge granulation gas-liquid-solid (GLS) phase separator UASB microbial growth

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Physicochemical,rheological and antioxidant profiling of yogurt prepared from non-enzymatically and enzymatically hydrolyzed potato powder under refrigeration

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Food Science and Human Wellness 2023年第1期12卷 69-78页

作者： Ishtiaq Ahmad Zhouyi Xiong Hanguo Xiong Rana Muhammad Aadil Nauman Khalid Allah Bakash Jvaid Lakhoo Zia-ud-din Asad nawaz Noman Walayat Rao Sanaullah khan College of Food Science and Technology Huazhong Agricultural UniversityWuhan 430070China Fisheries Research Institute Wuhan Academy of Agricultural SciencesWuhan 430207China National Institute of Food Science and Technology University of AgricultureFaisalabad 38000Pakistan Schools of Food and Agricultural Sciences University of Management and TechnologyLahore 54000Pakistan College of Food Science and Technology Zhejiang University of TechnologyHangzhou 310014China

Evidences show that the storage period greatly affects the quality of *** this study,three types of yogurt:control yogurt(CY),non-hydrolyzed potato powder yogurt(PPY)and enzymatically hydrolyzed potato powder yogurt(EHPPY)were prepared at 42℃ for 5 h and stored for 28 days at 4℃.The yogurts were evaluated for quality characteristics at different storage *** differences in pH values,titratable acidities and viable counts were detected in all three types of yogurt during ***,compared to other yogurts,EHPPY exhibited desirable water holding capacity,throughout the storage *** from this,sensory properties and antioxidant activities(2-diphenyl-1-picryl-hydrazyl(DPPH)free radical scavenging activity and ferric reducing antioxidant power(FRAP))of EHPPY were also significantly improved during the storage ***,the storage(G’)and loss(G”)modulus of PPY,EHPPY were lower than CY at 4℃ while a hysteresis loop was shown by all yogurts at the temperature range of 4-50℃ indicating higher G’(elasticity)than G”(viscosity).Based on our findings,EHPP could be an important functional ingredient in improving the quality and storage stability of yogurt for its production at an industrial level.

关键词： Storage stability Potato powder Yogurt Rheology Microbiology Antioxidant activity

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Measuring Reliability of A Web Portal Based on Testing Profile

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Computers, Materials & Continua 2023年第3期74卷 6641-6663页

作者： Malik Muhammad Ali Shahid Shahida Sulaiman Mohammed Al-Sarem Aqeel Ur Rahman Salman Iqbal Rab nawaz Bashir Arfat Ahmad khan Momen M.Alrawi Rashiq R.Marie Settawit Poochaya COMSATS University Islamabad Vehari Vehari61100Pakistan Universiti Teknologi Malaysia Johor Bahru81310Malaysia College of Computer Science and Engineering Taibah UniversityMedina41477Saudi Arabia Information System Department Sheba Region UniversityMarib14400Yemen Suranaree University of Technology Nakhon Ratchasima30000Thailand Khon Kaen University Khon Kaen40000Thailand Umm Al-Qura University Mecca24382Saudi Arabia Taibah University Medina42353Saudi Arabia

Conventionally,the reliability of a web portal is validated with generalized conventional methods,but they fail to provide the desired ***,we need to include other quality factors that affect reliability such as usability for improving the reliability in addition to the conventional reliability ***,the primary objectives of web portals are to provide interactive integration of multiple functions confirming diverse requirements in an efficient *** this paper,we employ testing profiles tomeasure the reliability through software operational profile,input space profile and usability profile along with qualitative measures of reliability and ***,the case study used for verification is based on aweb application that facilitates information and knowledge sharing among its online *** proposed scheme is compared with the conventional reliability improvement method in terms of failure detection and *** final results unveil that the computation of reliability by using the traditional method(utilizing failure points with the assistance of Mean Time Between Failures(MTBF)and Mean Time To Failure(MTTF)becomes ineffective under certain *** such situations,the proposed scheme helps to compute the reliability in an effective ***,the outcomes of the study provide insight recommendations about the testing and measurement of reliability for Web based software or applications.

关键词： Software usability software reliability web portals software testing software testing profile

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Early Detection of Diabetic Retinopathy Using Machine Intelligence throughDeep Transfer and Representational Learning

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Computers, Materials & Continua 2021年第2期66卷 1631-1645页

作者： Fouzia nawaz Muhammad Ramzan Khalid Mehmood Hikmat Ullah khan Saleem Hayat khan Muhammad Raheel Bhutta Department of Computer Science and Information Technology University of SargodhaSargodha40100Pakistan and School of Systems and TechnologyUniversity of Management and TechnologyLahore54782Pakistan Department of Computer Science COMSATS University IslamabadWah CampusIslamabadPakistan University Hospital Birmingham BirminghamUK Shifa International Hospital IslamabadPakistan Department of Computer Science and Engineering Sejong UniversitySeoulKorea

Diabetic retinopathy (DR) is a retinal disease that causes irreversible *** occurs due to the high blood sugar level of the patient, and it is clumsy tobe detected at an early stage as no early symptoms appear at the initial level. To preventblindness, early detection and regular treatment are needed. Automated detectionbased on machine intelligence may assist the ophthalmologist in examining thepatients’ condition more accurately and efficiently. The purpose of this study is toproduce an automated screening system for recognition and grading of diabetic retinopathyusing machine learning through deep transfer and representational *** artificial intelligence technique used is transfer learning on the deep neural network,Inception-v4. Two configuration variants of transfer learning are applied onInception-v4: Fine-tune mode and fixed feature extractor mode. Both configurationmodes have achieved decent accuracy values, but the fine-tuning method outperformsthe fixed feature extractor configuration mode. Fine-tune configuration modehas gained 96.6% accuracy in early detection of DR and 97.7% accuracy in gradingthe disease and has outperformed the state of the art methods in the relevant literature.

关键词： Diabetic retinopathy artificial intelligence automated screening system machine learning deep neural network transfer and representational learning

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