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Analytical solutions of simplified modified Camassa-Holm equation with conformable and M-truncated derivatives:A comparative study

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Journal of Ocean Engineering and Science 2024年第3期9卷 240-250页

作者： Ismail onder Melih Cinar Aydin Secer Mustafa Bayram Department of Mathematical Engineering Yildiz Technical UniversityIstanbulTurkey Graduate School of Natural and Aplied Sciences Yildiz Technical UniversityIstanbulTurkey Department of Computer Engineering Biruni UniversityIstanbulTurkey

This paper extracts some analytical solutions of simplified modified Camassa-Holm(SMCH)equations with various derivative operators,namely conformable and M-truncated derivatives that have been recently *** SMCH equation is used to model the unidirectional propagation of shallowwater *** extended rational sine−cosine and sinh−cosh techniques have been successfully implemented to the considered equations and some kinds of the solitons such as kink and singular have been *** have checked that all obtained solutions satisfy the main equations by using a computer algebraic ***,some 2D and 3D graphical illustrations of the obtained solutions have been *** effect of the parameters in the solutions on the wave propagation has been examined and all figures have been *** derived solutions may contribute to comprehending wave propagation in shallow ***,the solutions might help further studies in the development of autonomous ships/underwater vehicles and coastal zone management,which are critical topics in the ocean and coastal engineering.

关键词： Modified Camassa-Holm equation Conformable derivative M-truncated derivative Extended rational sine−cosine technique Extended rational sinh−cosh technique Exact solutions

Commentary on“Incidence of urinary incontinence following endoscopic laser enucleation of the prostate by en-bloc and non-en-bloc techniques:a multicenter,real-world experience of 5068 patients”

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Asian Journal of Andrology 2024年第3期26卷 333-334页

作者： James F Jiang Narmina K onder Akhil K Das Department of Urology University of California Irvine Orange CA 92868 USA.

Laser enucleation of the prostate is a proven and effectivesize-independent method for the surgical management of symptomaticbenign prostatic hyperplasia(BPH)and is considered as the“goldstandard”by many *** major hurdles that stand in theway of this becoming a universally used procedure for BPH are thesteep learning curve associated with mastering the procedure andpossibility of perioperative transient *** advances inteaching methodologies have helped tackle the difficulty in learning itand increased the number of urologists utilizing the *** forthe second hurdle,transient incontinence rates postlaser enucleationof the prostate have improved with the advent of newer techniques *** et al.1 assesses the incidence of stress,urge,andmixed urinary incontinence following laser enucleation of the prostateby comparing en-bloc and non-en-bloc techniques in a multicenterseries of 5068 men with BPH.

关键词： urinary incontinence transient

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特网座面的绷紧度对办公椅舒适度的影响

林业工程学报 2024年

作者：齐蔚葛海林 onder Tor 魏佳丽林珈好张继雷胡玲玲卡斯塔莫努大学森林工程系密西西比州立大学可持续生物质产品系浙江农林大学化学与材料工程学院圣奥科技股份有限公司

特网网布作为高端办公椅的接触面材料，因其良好的弹性和透气性，备受消费者亲徕。但是，有关特网材料的力学性能对办公椅舒适度影响的研究报道还较少，严重制约网布办公椅的研发升级。研究了特网的拉伸力学性能和座面绷紧度对不同体型... 详细信息

特网网布作为高端办公椅的接触面材料，因其良好的弹性和透气性，备受消费者亲徕。但是，有关特网材料的力学性能对办公椅舒适度影响的研究报道还较少，严重制约网布办公椅的研发升级。研究了特网的拉伸力学性能和座面绷紧度对不同体型人群的臀腿部体压分布和主观舒适度的影响。首先，测试分析了两种特网材料经、纬方向的拉伸力学性能；其次，通过改变特网尺寸量化了3种特网座面的绷紧度，并测试分析了6种特网座面与3种不同体型人群之间的体压分布；最后，针对6种不同特网和绷紧度的座面进行了舒适度主观评价。结果表明：特网种类和绷紧度对人体臀腿部的峰值压力、最大压力梯度和平均压力梯度有显著的交互作用影响。当座面为MW特网、绷紧度为T时，峰值压力、最大压力梯度和平均压力梯度最低；当座面为MJW特网、绷紧度为T时，峰值压力、最大压力梯度和平均压力梯度最高；综合主观评分和体压指标得出MW-T座椅的舒适度最高。本研究从主客观两方面分析了不同特网种类和绷紧度对座面舒适度的影响，为网布办公椅的网布座面设计和舒适度提升提供了科学依据。

关键词：特网拉伸性能座面绷紧度身体指数体压分布

Hydrogen production from chemical hydrogen storage materials over copper-based catalysts

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cMat 2024年第1期1卷 51-91页

作者： Jian-Jun Long Hao-Chong Wu Yuan-Ting Liu Yi-Yue Ding Qi-Lu Yao onder Metin Zhang-Hui Lu Key Laboratory of Energy Catalysis and Conversion of Nanchang College of Chemistry and Chemical EngineeringJiangxi Normal UniversityNanchangChina Department of Chemistry College of SciencesKoc UniversityIstanbulTurkey

Hydrogen,as a clean and efficient energy source,is one of the important energy carriers in the ***,the safe storage and delivery of hydrogen is still a bottleneck in its practical *** hydrides(such as NaBH_(4),NH_(3)BH_(3),N_(2)H_(4)·H_(2)O,N_(2)H_(4)BH_(3),and HCOOH)are considered as potential chemical hydrogen storage materials that can achieve rapid on-site hydrogen *** present,the most critical issue for them is to develop economic catalysts to achieve efficient hydrogen production from chemical ***-per(Cu)is considered as a promising catalyst that is one of the most reactive metals among the first-row transition metals and economically *** this review,we outline the recent advancements of Cu-based catalysts in catalyzing hydrogen production from chemical ***,the synthesis methods,characterization techniques,and hydrogen production catalytic activity of Cu-based catalysts were also ***,a brief conclusion and outlook are given for the application of Cu-based catalysts in the dehydrogenation of chemical *** hope that this review will stimulate interest in the promising research area of Cu-based catalysts for the dehydrogenation of chem-ical hydrides.

关键词： catalysis chemical hydrides copper hydrogen production

Production of "Tricalcium Phosphate/Titanium Dioxide" Coating Surface on Titanium Substrates

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Journal of Materials Science & Technology 2010年第11期26卷 1006-1010页

作者： onder Albayrak Sabri Altintas Department of Mechanical Engineering Mersin University Department of Mechanical Engineering Bogazici University

A new method for the production of the coating surface consisting of tricalcium phosphate （TCP） and titanium dioxide （TiO2） on titanium （Ti） substrates by using electrophoretic deposition （EPD） method has been *** occurrence on coating surface and hydroxyapatite （HA） decomposition into TCP,which are commonly encountered in EPD method,were used as an advantage in this *** nano-powders synthesized by acid-base method were used as the coating *** were deposited on Ti substrates with different voltages and *** on the deposited surface were observed by scanning electron microscopy （SEM）.Samples were sintered in air atmosphere to allow TiO2 growth from the Ti substrate to fill the *** observation and X-ray diffraction （XRD） analysis proved the occurrence of complete decomposition of HA into TCP,TiO2 growth between cracks,and coalescence of TCP/TiO2 on coating *** type of coating surface is expected to increase the coating strength because of TiO2 growth in the cracks and its coalescence with TCP.

关键词： Electrophoretic deposition Hydroxyapatite Bioceramics Microstructure

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BRAF mutation in colorectal carcinomas with signet ring cell component

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Cancer Biology & Medicine 2017年第3期14卷 287-292页

作者： Serap Yalcin onder Onguru Department of Molecular Biology and Genetic Ahi Evran UniversityKirsehir 40100Turkey Department of Pathology Gulhane School of MedicineHealth Sciences UniversityAnkara 06010Turkey

Objective:Signet ring cell carcinoma is a rare subtype of colorectal carcinoma(CRC)with an associated BRAFV600E *** investigated frequencies of BRAF mutation in 28 CRCs containing variable signet ring cell component and their relation with clinicopathologic ***:According to the presence of signet ring cell component,tumors were categorized into groups as follows:0%–9%,10%–24%,25%–49%,and>50%.Genomic DNA was isolated and analyzed for BRAF V600E gene mutation by polymerase chain reaction-restriction fragment length *** of 28 cases(39.3%)showed BRAFV600E mutation,which was also confirmed by Sanger *** elucidate the importance of existence of signet ring cell component at the molecular level,we separated cases into two groups with cut-off levels of 10%and 50%,which pertain to percentages of signet ring ***:Seven of 19 cases(36.8%)under the threshold of 50%and four of nine cases(44.4%)over this threshold value demonstrated BRAF *** of 7 cases(42.8%)featuring10%were BRAF ***:BRAF mutation must be closely associated with the presence of malignant signet ring cells regardless of their percentages.

关键词： BRAF mutations colon cancer signet ring cell

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Enhanced catalytic activity of monodispersed AgPd alloy nanoparticles assembled on mesoporous graphitic carbon nitride for the hydrolytic dehydrogenation of ammonia borane under sunlight

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Nano Research 2017年第5期10卷 1627-1640页

作者： Hamza Kahri Melike Sevim onder Metin Department of Chemistry Faculty of Science Ataturk University 25240 Erzurum Turkey Laboratoire de Synthese Organique Asymetrique et Catalyse Homogene (UR11ES56) Faculte des Sciences de Monastir Universite de Monastir Bd. de I'Environnement 5019 Monastir Tunisia East Anatolian High Technology Research and Application Center (DAYTAM) Ataturk University 25240 Erzurum Turkey

We address the composition-controlled synthesis of monodispersed AgPd alloy nanoparticles （NPs）, their assembly for the first time on mesoporous graphitic carbon nitride （mpg-C3N4）, and the unprecedented catalysis of mpg-CgN4@AgPd in the hydrolytic dehydrogenation of ammonia borane （AB） at room temperature. Monodispersed AgPd alloy NPs were synthesized using a high-temperature organic-phase surfactant-assisted protocol comprising the co-reduction of silver（I） acetate and palladium（II） acetylacetonate in the presence of oleylamine, oleic acid, and 1-0ctadecene. This protocol allowed the synthesis of four different compositions of AgPd alloy NPs. The AgPd alloy NPs were then assembled on mpg-C3N4, reduced graphene oxide, and Ketjenblack using a liquid-phase self-assembly method. Among the three supports tested, the mpg-CBN4@AgPd catalysts provided the best activity because of the Mott-Schottky effect, which was driven by the favorable work function difference between mpg-CBN4 and the metal NPs. Moreover, the activity of the mpg-CBN4@AgPd catalyst was further enhanced by an acetic acid treatment （AAt）, and a record initial turnover frequency of 94.1 mOl（hydrogen）＇mOl（catalyst）-l-min-1 was obtained. Furthermore, the mpg-CBN4@Ag42Pdss-AAt catalyst also showed moderate durability for the hydrolysis of AB. This study also includes a wealth of kinetic data for the mpg-CBN4@AgPd-catalyzed hydrolysis of AB.

关键词： silver palladium alloy nanoparticles graphitic carbon nitride ammonia borane dehydrogenation

Real-Time Indoor Path Planning Using Object Detection for Autonomous Flying Robots

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Intelligent Automation & Soft Computing 2023年第6期36卷 3355-3370页

作者： onder Alparslan Omer Cetin National Defence University Hezârfen Aeronautics and Space Technologies InstituteIstanbul34039Turkiye

Unknown closed spaces are a big challenge for the navigation of robots since there are no global and pre-defined positioning options in the *** of the simplest and most efficient algorithms,the artificial potential field algorithm(APF),may provide real-time navigation in those places but fall into local mini-mum in some *** overcome this problem and to present alternative escape routes for a robot,possible crossing points in buildings may be detected by using object detection and included in the path planning *** study utilized a proposed sensor fusion method and an improved object classification method for detecting windows,doors,and stairs in buildings and these objects were classified as valid or invalid for the path planning *** performance of the approach was evaluated in a simulated environment with a quadrotor that was equipped with camera and laser imaging detection and ranging(LIDAR)sensors to navigate through an unknown closed space and reach a desired goal *** of crossing points allows the robot to escape from areas where it is *** navigation of the robot has been tested in different scenarios based on the proposed path planning algorithm and compared with other improved APF *** results showed that the improved APF methods and the methods rein-forced with other path planning algorithms were similar in performance with the proposed method for the same goals in the same *** the goals outside the current room,traditional APF methods were quite unsuccessful in reaching the *** though improved methods were able to reach some outside targets,the proposed method gave approximately 17%better results than the most success-ful example in achieving targets outside the current *** proposed method can also work in real-time to discover a building and navigate between rooms.

关键词： Aircraft navigation computer vision object detection path planning sensor fusion

Discriminating performance of macular ganglion cellinner plexiform layer thicknesses at different stages of glaucoma

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International Journal of Ophthalmology(English edition) 2019年第3期12卷 464-471页

作者： Melih Ustaoglu Nilgun Solmaz Feyza onder Glaucoma Research Center Wills Eye Hospital Ophthalmology Clinic Sisli Hamidiye Etfal Training and Research Hospital Ophthalmology Clinic Haseki Training and Research Hospital

AIM: To determine the discriminating performance of the macular ganglion cell-inner plexiform layer(GCIPL) parameters between all the consecutive stages of glaucoma(from healthy to moderate-to-severe glaucoma), and to compare it with the discriminating performances of the peripapillary retinal nerve fiber layer(RNFL) parameters and optic nerve head(ONH) ***: Totally 147 eyes(40 healthy, 40 glaucoma suspects, 40 early glaucoma, and 27 moderate-to-severe glaucoma) of 133 subjects were included. Optical coherence tomography(OCT) was obtained using Cirrus HD-OCT 5000. The diagnostic performances of GC-IPL, RNFL, and ONH parameters were evaluated by determining the area under the curve(AUC) of the receiver operating characteristics. RESULTS: All GC-IPL parameters discriminated glaucoma suspect patients from subjects with healthy eyes and moderate-to-severe glaucoma from early glaucoma patients(Perotemporal and inferonasal GC-IPL parameters discriminated early glaucoma patients from glaucoma suspects, whereas no RNFL or ONH parameter could discriminate between the two. The best parameters to discriminate glaucoma suspects from subjects with healthy eyes were superonasal GC-IPL, superior RNFL and average c/d ratio(AUC=0.746, 0.810 and 0.746, respectively). Discriminating performances of all the parameters for early glaucoma vs glaucoma suspect comparison were lower than that of the other consecutive group comparisons, with the bestGC-IPL parameters being minimum and inferotemporal(AUC=0.669 and 0.662, respectively). Moreover, minimum GC-IPL, average RNFL, and rim area(AUC=0.900, 0.858, 0.768, respectively) were the best parameters for discriminating moderate-to-severe glaucoma patients from early glaucoma ***: GC-IPL parameters can discriminate glaucoma suspect patients from subjects with healthy eyes, and also all the consecutive stages of glaucoma from each other(from glaucoma suspect to moderate-tosevere

关键词： retinal nerve fiber layer optic nerve head cirrus HD-OCT ganglion cell-inner plexiform layer glaucoma suspect