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Performance Analysis of Modulation Techniques in 5G Communication System

China Communications 2022年第8期19卷 100-114页

作者： muhammet tahir guneser Ahmed Salahaldeenali Sahab Cihat Seker Electrical and Electronics Engineering Department Engineering FacultyKarabuk UniversityTurkey

In the 5^(th) generation mobile communication(5G)system,better bitrate,better power consumption,and better Bit Error Rate are *** meet all these requirements in 5G,the waveform is *** the Orthogonal Frequency Division Multiplexing(OFDM)modulation scheme has been commonly used in 4G,it is difficult to meet the requirements of 5G.A lot of candidate waveforms are discussed in the 5G system included Filter Bank Multicarrier(FBMC),Universal Filtered Multicarrier(UFMC),Filtered OFDM(F-OFDM),and Generalized Frequency Division Multiplexing(GFDM),***,since GFDM is no longer widely used,in this paper,FBMC,UFMC,and F-OFDM modulation schemes are discussed and compared with *** Spectral Density(PSD),Bit Error Rate(BER),Transmitted Signal Power,Peak Average Power Ratio(PAPR)and Bit Rate parameters of the modulation schemes are studied and compared with *** demonstrates to be the most promising modulation scheme for 5G systems.

关键词： PSD PAPR OFDM FBMC UFMC FOFDM

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Automated Classification of Snow-Covered Solar Panel Surfaces Based on Deep Learning Approaches

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Computer Modeling in Engineering & Sciences 2023年第9期136卷 2291-2319页

作者： Abdullah Ahmed Al-Dulaimi muhammet tahir guneser Alaa Ali Hameed Mohammad Shukri Salman Department of Electrical and Electronics Engineering Karabuk UniversityKarabuk78100Turkey Department of Computer Engineering Istinye UniversityIstanbul34303Turkey College of Engineering and Technology American University of the Middle EastEgaila54200Kuwait

Recently,the demand for renewable energy has increased due to its environmental and economic *** panels are the mainstay for dealing with solar energy and converting it into another form of usable *** panels work under suitable climatic conditions that allow the light photons to access the solar cells,as any blocking of sunlight on these cells causes a halt in the panels work and restricts the carry of these ***,the panels are unable to work under these conditions.A layer of snow forms on the solar panels due to snowfall in areas with low ***,it causes an insulating layer on solar panels and the inability to produce electrical *** detection of snow-covered solar panels is crucial,as it allows us the opportunity to remove snow using some heating techniques more efficiently and restore the photovoltaics system to proper *** paper presents five deep learning models,■-16,■-19,ESNET-18,ESNET-50,and ESNET-101,which are used for the recognition and classification of solar panel *** this paper,two different cases were applied;the first case is performed on the original dataset without trying any kind of preprocessing,and the second case is extreme climate conditions and simulated by generating motion ***,the dataset was replicated using the upsampling technique in order to handle the unbalancing *** conducted dataset is divided into three different categories,namely;all_snow,no_snow,and partial *** fivemodels are trained,validated,and tested on this dataset under the same conditions 60%training,20%validation,and testing 20%for both *** accuracy of the models has been compared and verified to distinguish and classify the processed *** accuracy results in the first case showthat the comparedmodels■-16,■-19,ESNET-18,and ESNET-50 give 0.9592,while ESNET-101 gives *** the second case,the models outperformed their counterparts in the first case by evaluating performan

关键词： Deep learning CNN models image classification solar panels solar panel defect detection

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Development of Composite Textile Structures for Wound Dressing Applications

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Journal of Donghua University(English Edition) 2013年第5期30卷 447-450页

作者： ANAND Subhash UZUN muhammet SHAH tahir RAJENDRAN Subbiyan Institute for Materials Research and Innovation The University of Bolton Department of Textile Education Marmara University

The main objective of this research work was the development of novel and responsive nonwoven composite structures containing gelling materials for wound management. The development of novel all inclusive collagen booster(CB) therapeutic nonwoven wound dressings was mainly focused on. It provides essential functional properties such as high absorption,vertical and lateral wicking,and antibacterial and acidic pH properties. The developed composite wound dressing consisted of carboxymethylcellulose(CMC) fibre and also it was reinforced with polylactic acid( PLA) fibre. The produced composite wound dressings were treated with two different CBs at 4% by using the spray method. The details of the CBs have not been disclosed in this paper due to the Intellectual Property Rights( IPR) issues. The important benefit of using CB treatment is that it allows the maintenance of an acidic pH environment at the wound area. It is well known that acidic pH reduces the wound healing time and enhances the wound healing process. Furthermore,one of the CBs not only promotes the proliferation of the epithelial cells in wounds but also can provide antibacterial action. The PLA fibre reinforced CMC composite dressing has enhanced wicking properties which help to minimise the pooling of exudate on the wound bed and as a result maceration is prevented. The CBs treated dressings maintain the wound bed in an acidic pH condition which also improves the wound healing process. In addition to the above-mentioned properties,the CB treatment imparts antimicrobial activity against Gram-positive and Gram-negative bacteria,thus resulting in the reduction in the propensity for wound infection. Ultimately,the research has proved that the 4% CB treatment enhances the antimicrobial activity and the acidic pH characteristics of the developed CMC /PLA composite wound dressings.

关键词： nonwoven composite textile structure wound dressing carboxymethylcellulose(CMC) polylactic acid(PLA)

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Comparison of non-cycloplegic photorefraction,cycloplegic photorefraction and cycloplegic retinoscopy in children

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International Journal of Ophthalmology(English edition) 2015年第1期8卷 128-131页

作者： Ozdemir Ozdemir Zuhal Ozen Tunay Ikbal Seza Petricli Damla Ergintürk Acar muhammet Kazim Erol Department of Ophthalmology Zekai Tahir Burak Women's Health Education and Research Hospital Department of Ophthalmology Etlik Zubeyde Hanim Maternity and Women's Health Research Hospital Department of Ophthalmology Antalya Education and Research Hospital

AIM: To compare the results of noncycloplegic photorefraction, cycloplegic photorefraction and cycloplegic refraction in preschool and non-verbal ***: One hundred and ninety-six eyes of 98children(50 females, 48 males) were included in the study. Firstly, non-cycloplegic photorefraction was achieved with Plusoptix A09; secondly, cycloplegic photorefraction was carried out with Plusoptix A09 after10 min cyclopentolate. Finally, 30 min after instillation of twice cyclopentolate, cycloplegic refraction was obtained with autorefraction and/or standard retinoscopy. Spheric equivalent, spheric power, cylindric power and cylindrical axis measurements were statistically ***: The mean age was 28.8±18.5mo(range12-72mo). The differences in spherical equivalent, spheric power and cylindrical power measured by the three methods were found statistically significant(P 0.05).CONCLUSION: For the determination of refractive errors in children, the Plusoptix A09 measurements give incorrect results after instillation of ***, the cylindrical power measured by Plusoptix A09 with or without cycloplegia is higher. However, the non-cycloplegic Plusoptix A09 measures spheric equivalent and spheric power similar to cycloplegic refraction measurements in preschool and non-verbal children.

关键词： cyclopentolate cycloplegia photorefraction photoretinoscopy Plusoptix retinoscopy refraction

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A novel mutation of SGK-1 gene in central serous chorioretinopathy

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International Journal of Ophthalmology(English edition) 2015年第1期8卷 23-28页

作者： Mahmut Akyol muhammet Kazιm Erol Ozdemir Ozdemir Deniz Turgut Coban Ahmet Burak Bilgin Esin Sogutlu Sari Elif Betul Turkoglu Department of Medical Biology and Genetics Akdeniz University Faculty of Medicine Department of Ophthalmology Antalya Education and Research Hospital Department of Ophthalmology Zekai Tahir Burak Women's Health Education and Research Hospital Department of Ophthalmology Akdeniz University Faculty of Medicine Department of Ophthalmology Balιkesir University Faculty of Medicine

AIM: To investigate the association of serum glucocorticoid kinase gene-1(SGK-1) DNA variants with chronic central serous chorioretinopathy(CSC).METHODS: We enrolled 32 eyes of 32 patients who were diagnosed with chronic CSC and composed 32 normal eyes as a control group. Peripheral blood was used for DNA extraction and polymerase chain reaction amplification. SGK1 gene was sequenced by using Big Dye Terminator v3.1 cycle sequencing Kit(Applied Biosystems, Foster City, CA, USA). The SGK-1 gene and its variants were investigated in CSC patient group and control ***: We identified a new polymorphism M32 V in two person in the patient group [Minor allele frequency(MAF) =0.009] on the region of 1-60 amino acids. The rs1057293 was located in the encoder region of the SGK- 1 gene but not associated with CSC(P =0.68). An intrinsic rs1743966 is also not associated(P =0.28).CONCLUSION: The new polymorphism M32 V is located on the region of 1-60 amino acids which is necessary for localization to the mitochondria in CSC patient. This mutation is probably important for the energy metabolism and plays an important role in the cellular response to hyperosmotic stress and other stress stimuli. Both rs1057293 and rs1743966 are not associated with CSC.

关键词： central serous chorioretinopathy mutation polymerase chain reaction serum glucocorticoid kinase gene-1

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