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Self-limiting laser crystallization and direct writing of 2D materials

International Journal of Extreme Manufacturing 2019年第1期1卷 139-144页

作者： Zabihollah Ahmadi baha yakupoglu Nurul Azam Salah Elafandi Masoud Mahjouri-Samani Electrical and Computer Engineering Department Auburn UniversityAuburnALUnited States of America

Direct growth and patterning of atomically thin two-dimensional(2D)materials on various substrates are essential steps towards enabling their potential for use in the next generation of electronic and optoelectronic *** conventional gas-phase growth techniques,however,are not compatible with direct patterning ***,the condensed-phase methods,based on metal oxide deposition and chalcogenization processes,require lengthy processing times and high ***,a novel self-limiting laser crystallization process for direct crystallization and patterning of 2D materials is *** takes advantage of significant differences between the optical properties of the amorphous and crystalline *** laser deposition is used to deposit a thin layer of stoichiometric amorphous molybdenum disulfide(MoS2)film(∼3 nm)onto the fused silica substrates.A tunable nanosecond infrared(IR)laser(1064 nm)is then employed to couple a precise amount of power and number of pulses into the amorphous materials for controlled crystallization and direct writing *** IR laser interaction with the amorphous layer results in fast heating,crystallization,and/or evaporation of the materials within a narrow processing ***,reduction of the midgap and defect states in the as crystallized layers decreases the laser coupling efficiency leading to higher tolerance to process *** deliberate design of such laser 2D material interactions allows the selflimiting crystallization phenomena to occur with increased quality and a much broader processing *** unique laser processing approach allows high-quality crystallization,direct writing,patterning,and the integration of various 2D materials into future functional devices.

关键词： 2D materials direct laser writing laser crystallization

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Using dummy data for RFID tag and reader authentication

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Digital Communications and Networks 2022年第5期8卷 804-813页

作者： baha’A.Alsaify Dale R.Thompson Abdallah Alma'aitah Jia Di Department of Network Engineering and Security Jordan University of Science and TechnologyIrbid21163Jordan Computer Science and Computer Engineering Department University of ArkansasFayetteville72701ARUSA

Radio-Frequency IDentification(RFID)technology is an essential enabler of a multitude of intelligent *** robust authentication of RFID system components is critical in providing trustworthy data delivery from/to *** this paper,we propose an authentication protocol based on monitoring the transmissions between readers and tags in the *** proposed authentication scheme is based on injecting decoys within the exchanged communications(between RFID readers and tags)and is used in the authentication ***,the proposed authentication scheme is mathematically modeled and validated using extensive *** simulations results show that the proposed scheme provides a 100%confidence level in the authentication of tags and detection of compromised readers.

关键词： RFID Authentication Dummy data Security Decoys

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Modeling and Predicting of News Popularity in Social Media Sources

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Computers, Materials & Continua 2019年第7期61卷 69-80页

作者： Kemal Akyol bahaŞen Faculty of Engineering and Architecture Kastamonu University37100KastamonuTurkey Faculty of Engineering Yıldırım Beyazıt University06500AnkaraTurkey

The popularity of news,which conveys newsworthy events which occur during day to people,is substantially important for the spectator or *** interact with news website and share news links or their *** study uses supervised learning based machine learning techniques in order to predict news popularity in social media *** techniques consist of basically two phrases:a)the training data is sent as input to the classifier algorithm,b)the performance of prelearned algorithm is tested on the testing *** so,a knowledge discovery from the data is *** this context,firstly,twelve datasets from a set of data are obtained within the frame of four categories:Economic,Microsoft,Obama and ***,news popularity prediction in social network services is carried out by utilizing Gradient Boosted Trees,Multi-Layer Perceptron and Random Forest learning *** prediction performances of all algorithms are examined by considering Mean Absolute Error,Root Mean Squared Error and the R-squared evaluation *** results show that most of the models designed by using these algorithms are proved to be applicable for this ***,a comprehensive study for the news prediction is presented,using different techniques,drawing conclusions about the performances of algorithms in this study.

关键词： News popularity sentiment scores social network services Gradient Boosted Machines Multi-Layer Perceptron Random Forest

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Human and animal sarcocystosis in Malaysia: A review

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Asian Pacific Journal of Tropical Biomedicine 2016年第11期6卷 982-988页

作者： baha Latif Azdayanti Muslim Parasitology Discipline Faculty of Medicine Universiti Teknologi MARA

Sarcocystosis is a zoonotic disease caused by a coccidian intracellular protozoan parasite of the genus Sarcocystis. More than 200 Sarcocystis species have been recorded and the parasites are found in mammals, birds and reptiles. They require two hosts to complete their life cycle. In Malaysia, sarcocystosis was reported as a potential emerging food and water-borne disease after a series of large outbreak of human infections. There was not enough attention given before even though it was reported in both humans and *** first human case of invasive muscular sarcocystosis among local Malaysian was reported in 1975. Besides, a retrospective autopsy examination on 100 tongues revealed21% positive cases. On top of that, a sero-epidemiological survey conducted in 243 subjects in West Malaysia showed that 19.7% had Sarcocystis antibodies. The clinical symptoms of muscular sarcocystosis were first described comprehensively in ***, many types of animals including livestock were found harbor the sarcocysts in their tissue. The first case of human intestinal sarcocystosis was reported in 2014. This review indicates that human sarcocystosis is currently endemic in Malaysia and parallel to that reported in animals. However, more studies and investigations need to be conducted since the source of human infection remains unknown.

关键词： Sarcocystosis Zoonosis Human Animal Malaysia

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Surface modification of ammonium nitrate by coating with surfactant materials to reduce hygroscopicity

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Defence Technology（防务技术） 2019年第4期15卷 615-620页

作者： baha I. Elzaki Yue Jun Zhang School of Chemical Engineering Nanjing University of Science and Technology Nanjing 210094 Jiangsu China Department of Chemical Engineering College of Engineering Karary University Omdurman 12304 Sudan

Ammonium nitrate(AN)is promising oxidizer in green *** this work,the physical coating method was improved to modify the surface of ammonium nitrate particles with different surfactant materials to reduce ***,stearic acid,stearyl alcohol,palmic acid,lauric acid,stearsmide,tetradecylamine,dodecylamine,and tetradecanol were used as coating surfactant *** hygroscopicity was tested for ammonium nitrate with and without *** transform infrared(FTIR)and scanning electron microscopy(SEM)were used to characterize the surface of coated and uncoated ammonium *** mass ratio of coating layer and decline of absorption rate of ammonium nitrate coated by cetylalcohol were 1.00%,and 28.40%,*** results indicate that coating with cetylalcohol surfactant have advantages over the other surfactants in term of low mass ratio of coating layer,and high decline of moisture absorption ***,cetylalcohol would be a promising coating surfactant material for ammonium *** idea and approach presented in this study have potential to made hydrophobic layer on the surface of particles to reduce hygroscopicity of AN,and also help the researcher to improving anti-hygroscopicity of ammonium salts.

关键词： Ammonium nitrate(AN) Coating Hygroscopicity Modification surface Surfactant

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Joint Channel and Multi-User Detection Empowered with Machine Learning

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Computers, Materials & Continua 2022年第1期70卷 109-121页

作者： Mohammad Sh.Daoud Areej Fatima Waseem Ahmad Khan Muhammad Adnan Khan Sagheer Abbas baha Ihnaini Munir Ahmad Muhammad Sheraz Javeid Shabib Aftab College of Engineering Al Ain UniversityAbu Dhabi112612UAE Department of Computer Science Lahore Garrison UniversityLahore54792Pakistan School of Computer Science National College of Business Administration and EconomicsLahore54000Pakistan Riphah School of Computing and Innovation Faculty of ComputingRiphah International UniversityLahore54000Pakistan Pattern Recognition and Machine Learning Lab Department of Software EngineeringGachon UniversitySeongnam13557South Korea Department of Computer Science College of Science and TechnologyWenzhou Kean University325060USA Department of Computer Science Hameeda Rasheed Institute of Science and TechnologyMultan66000Pakistan

The numbers of multimedia applications and their users increase with each passing *** multi-carrier systems have been developed along with varying techniques of space-time coding to address the demand of the future generation of network *** this article,a fuzzy logic empowered adaptive backpropagation neural network(FLeABPNN)algorithm is proposed for joint channel and multi-user detection(CMD).FLeABPNN has two *** first stage estimates the channel parameters,and the second performsmulti-user *** proposed approach capitalizes on a neuro-fuzzy hybrid systemthat combines the competencies of both fuzzy logic and neural *** study analyzes the results of using FLeABPNN based on a multiple-input andmultiple-output(MIMO)receiver with conventional partial oppositemutant particle swarmoptimization(POMPSO),total-OMPSO(TOMPSO),fuzzy logic empowered POMPSO(FL-POMPSO),and FL-TOMPSO-based MIMO *** FLeABPNN-based receiver renders better results than other techniques in terms of minimum mean square error,minimum mean channel error,and bit error rate.

关键词： Channel and multi-user detection minimum mean square error multiple-input and multiple-output minimum mean channel error bit error rate

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Synthesis and Spectroscopy of Silica Nanoparticles as Scatter Centers in Random Gain Porous Media

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光谱学与光谱分析 2015年第2期35卷 334-339页

作者： Firas J.Kadhim baha T.Chiad Nathera A.Ali Jafer F.Odah Department of Physics College of ScienceUniversity of Baghdad Department of Physics College of ScienceUniversity of Al-Muthanna

This work was carried out to synthesis a silica matrix by sol-gel technique,which used as host to Kiton Red laser dye doped with silica nanoparticles,which also prepared by sol-gel technique,to obtain KRSiO2 nanoparticles confined in silica xerogel *** rods at different pH values were successfully *** different values of pH cause different size of obtained nanoparticles,these nanoparticles act as scatter centers in the *** spontaneous emission(ASE),threshold pumping energy(Eth),and mean free path(lt)for photons in the rods have been *** results show that the values of bandwidth at full width half-maximum(FWHM)and the threshold energy are about 8.7nm and 12 mJ respectively.

关键词： Spectroscopy Keton Red Sol-Gel technique Mean Free Path

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A statistical approach to classification of keratoconus

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International Journal of Ophthalmology(English edition) 2016年第9期9卷 1355-1357页

作者： Murat Ucar Hasan Basri Cakmak baha Sen Department of Computer Engineering Karabk University Faculty of Engineering Department of Ophthalmology Hacettepe University Faculty of Medicine Department of Computer Engineering Yildirim Beyazit University Faculty of Engineering and Natural Sciences

INTRODUCTIONThe front portion of the eye consists of a transparent layer called the *** cornea is an important optical component for vision and plays a role in the specific refraction of the *** cornea normally has convexity but the amount of protrusion progressively increases in patients with *** other words,the cornea prolapses *** is a bilateral,typically asymmetric and non-inflammatory degeneration of the cornea caused by corneal protrusion as a result of progressive thinning of the corneal *** thinning generally occurs in the inferior,inferotemporal or central regions of the cornea.

关键词： A statistical approach to classification of keratoconus

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Cryptosporidiosis among children with diarrhoea in three Asian countries:A review

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Asian Pacific Journal of Tropical Biomedicine 2015年第11期5卷 885-888页

作者： baha Latif Nurul Fariza Rossle Faculty of Medicine Universiti Teknologi MARA

This review focuses on studies concerning cryptosporidiosis in three Asian *** spp. infection was investigated in children < 12 years old afflicted with diarrhoea and admitted to the paediatric hospitals in Iraq, Jordan and Malaysia. Most of the patients complained of abdominal pain, watery diarrhoea and mild-to-severe dehydration. Stool samples were collected from children and five methods were used to detect oocysts of Cryptosporidium spp. including: direct wet mount, Sheather's sugar flotation,formalin-ether sedimentation, modified Ziehl–Neelsen and direct fluorescent antibody(DFA). The infection rate was 8.56, 37.3 and 4.6 in Iraq, Jordan and Malaysia, respectively. A combination offormalin ether sedimentation and acid fast stain was used to detect Cryptosporidium oocysts in Iraq. The DFA test showed the highest sensitivity for samples of children in Jordan. In Malaysia, direct wet mount, formalin-ether sedimentation, modified Ziehl–Neelsen and DFA gave the same results(4.62%) while Sheather's sugar flotation was 3.85%. Source of drinking water appeared to be an important risk factor in transmission of infection. In Jordan, the high rate of infection was recorded in rainy season(January–May).

关键词： Cryptosporidium spp. Children Diagnosis Prevalence

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Clinical outcomes of a new diffractive multifocal intraocular lens

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International Journal of Ophthalmology(English edition) 2017年第12期10卷 1844-1850页

作者： baha Toygar Ozge Yabas Kiziloglu Okan Toygar Ali Murat Hacimustafaoglu Department of Ophthalmology Goztepe Medical Park HospitalIstanbul 34732Turkey

AIM：To evaluate clinical outcomes after implantation of a new diffractive aspheric multifocal intraocular lens（IOL） with ＋3.00 addition ***：This is a retrospective,consecutive case series of cataract patients who underwent bilateral implantation of the Optiflex MO/HF D012（Moss Vision ***,London,UK） multifocal *** followed for 6 mo were included in the *** on distance,intermediate and near visual acuity,refractive error [manifest spherical equivalent（MSE）],contrast sensitivity,adverse events,subjective symptoms,spectacle independence and patient satisfaction [visual function questionnaire（VFQ）-25 questionnaire] were retrieved from electronic medical records and ***：Forty eyes of 20 patients with a mean age of 66.7±8.5 y（range：53-82） were included in the *** uncorrected distance,near and intermediate visual acuity remained stable through postoperative visits and was 0.19±0.19 log MAR,Jaeger 4 and Jaeger 3 respectively at the 6 mo *** the end of postoperative 6 mo,MSE was-0.14±0.42 diopters（D） and 98% of the eyes were within 1.00 D of target *** low contrast（10%） visual acuity remained stable（P=0.54） through follow up visits with a mean of 0.35±0.17 log MAR at the 6 mo *** were no reported adverse *** of the patients reported subjective symptoms of halo or *** independence rate was 90%.Mean VFQ-25 questionnaire score was 93.5±***：The Optiflex MO/HF-DO12 IOL was safely implanted and successfully restored distance,intermediate and near visual acuity without impairing contrast *** levels of spectacle independence were achieved at all distances including intermediate distance.

关键词： multifocal intraocular lens diffractive aspheric

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