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Generative Adversarial Network with Face Alignment for Face Generation
Adib Kamali,Udurume Miracle,Udeogu Chigozie Uzochukwu,Angela Caliwag,Wansu Lim 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.11
Face generation is extensively conducted to increase the number of face images dataset. In face generation field, Generative Adversarial Network (GAN) have shown remarkable success in face image generations. However, most of the existing methods only generate face images from random noise, and cannot generate faces according to face alignment. This make GAN produce poor quality face images when using unaligned face image. In this paper, we propose face generation based on GAN with considering the face alignments. In detail, original face images which is not always aligned is fed to the face alignment module. Then the aligned face images is added noises. The aligned images with noise are then used as input for GAN based image generator. Generator and discriminator are trained to optimize the face generation model performance. Based on extensive experimental study, we present the analysis on face alignment and face generation result with and without considering face alignment.
Time harmonic analysis of dam-foundation systems by perfectly matched layers
Adib Khazaee,Vahid Lotfi 국제구조공학회 2014 Structural Engineering and Mechanics, An Int'l Jou Vol.50 No.3
Perfectly matched layers are employed in time harmonic analysis of dam-foundation systems. The Lysmer boundary condition at the truncation boundary of the PML region has been incorporated in the formulation of the dam-foundation FE model (including PML). The PML medium is defined in a way that the formulation of the system can be transformed into time domain. Numerical experiments show that applying Lysmer boundary conditions at the truncation boundary of the PML area reduces the computational cost and make the PML approach a more efficient technique for the analysis of dam-foundation systems.
Real-Time State of Charge estimation of Li-Ion Battery Considering The Effect of State of Health
Adib M. Kamali(아딥),Angela Caliwag(안젤라),Donguk Kwon(권동욱),Wansu Lim(임완수) 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.2
Battery health estimation has an important role in safe operation and long-life battery. Battery health estimation can be represented as a battery State of charge (SOC) and state of health (SOH). The existing approach performs SOC without considering SOH effect which assumes that capacity always in the maximum value. This approach is lack of accuracy because capacity of battery degrades with aging not always same. Therefore, we propose SOC estimation considering the effect of SOH. The result shows the SOH adjusted the capacity value to improve SOC estimation accuracy. The experimental result is presented using battery management system C2000 and cloud computing.
Path planning in nuclear facility decommissioning: Research status, challenges, and opportunities
Adibeli, Justina Onyinyechukwu,Liu, Yong-kuo,Ayodeji, Abiodun,Awodi, Ngbede Junior Korean Nuclear Society 2021 Nuclear Engineering and Technology Vol.53 No.11
During nuclear facility decommissioning, workers are continuously exposed to high-level radiation. Hence, adequate path planning is critical to protect workers from unnecessary radiation exposure. This work discusses recent development in radioactive path planning and the algorithms recommended for the task. Specifically, we review the conventional methods for nuclear decommissioning path planning, analyze the techniques utilized in developing algorithms, and enumerate the decision factors that should be considered to optimize path planning algorithms. As a major contribution, we present the quantitative performance comparison of different algorithms utilized in solving path planning problems in nuclear decommissioning and highlight their merits and drawbacks. Also, we discuss techniques and critical consideration necessary for efficient application of robots and robotic path planning algorithms in nuclear facility decommissioning. Moreover, we analyze the influence of obstacles and the environmental/radioactive source dynamics on algorithms' efficiency. Finally, we recommend future research focus and highlight critical improvements required for the existing approaches towards a safer and cost-effective nuclear-decommissioning project.
Family of Isolated Zero Current Transition PWM Converters
Adib, Ehsan,Farzanehfard, Hosein The Korean Institute of Power Electronics 2009 JOURNAL OF POWER ELECTRONICS Vol.9 No.2
In this paper a family of zero current transition PWM converters which employs a simple auxiliary circuit is introduced. This soft switched auxiliary circuit is only composed of a switch and a capacitor. The proposed converters are analyzed and various operating modes of the ZCT flyback converter are discussed. Design considerations are presented and the experimental results of the ZCT flyback converter laboratory prototype are illustrated. The experimental results confirm the validity of theoretical analysis.
Adib Al-Haj, Husain,Daphne, Schonegg,Fabienne Andrina, Bosshard,Silvio, Valdec Korean Academy of Oral and Maxillofacial Radiology 2022 Imaging Science in Dentistry Vol.52 No.-
Supernumerary teeth that are present in the molar region may be evident based on crowding and impaction, but most cases are asymptomatic and discovered as incidental findings during routine radiological examinations. This article reports the case of a 29-year-old woman who presented with a severe feeling of pressure in the region of the maxillary third molars that had been increasing in intensity for weeks. A clinical examination revealed crowding of the maxillary anterior teeth despite the completion of orthodontic treatment and an erupted third molar with localized gingivitis in the second quadrant. A radiographic examination revealed bilateral supernumerary maxillary fourth and fifth molars, so cone-beam computed tomography was performed to locate the supernumerary teeth precisely for a preoperative diagnosis and comprehensive treatment planning. This report presents the radiological and surgical case management of a rare case of bilateral supernumerary molars and reviews the literature regarding epidemiology and treatment options.
Family of Isolated Zero Current Transition PWM Converters
Ehsan Adib,Hosein Farzanehfard 전력전자학회 2009 JOURNAL OF POWER ELECTRONICS Vol.9 No.2
In this paper a family of zero current transition PWM converters which employs a simple auxiliary circuit is introduced. This soft switched auxiliary circuit is only composed of a switch and a capacitor. The proposed converters are analyzed and various operating modes of the ZCT flyback converter are discussed. Design considerations are presented and the experimental results of the ZCT flyback converter laboratory prototype are illustrated. The experimental results confirm the validity of theoretical analysis.
Samane Adib,Taki Tiraihi,Merzieh Darvishi,Taher Taheri,Hadi Kazemi 한국조직공학과 재생의학회 2015 조직공학과 재생의학 Vol.12 No.1
Human Bone marrow stromal cells (hBMSCs) can differentiate under appropriate experimental conditionsinto neuronal and glial-like cells. This study shows a protocol for producing human neural stem cells (hNSCs)from hBMSCs and the subsequent differentiation of hNSCs into cholinergic neurons (CNs), where sequential mediareplaced the culturing media. hBMSCs have been used in generating cell aggregates (CAs) using bFGF, EGF andB27. The hNSCs were isolated from CAs, and the CNs differentiated from the hNSCs using sequential media, wherebFGF, EGF and B27 were gradually replaced with NGF. The hNSC stemness was checked by RT-PCR of SOX2,Oct-4 and Nanog genes. Fibronectin, CD90, CD106, CD31, nestin, neurofilament 68 (NF-68), NF-200 and ChATimmunostaining evaluated the differentiation of the hBMSCs, the hNSCs and the CNs. FM1-43 was used in studyingthe function of the CNs. The hBMSCs were immunoreactive to fibronectin, CD90 and CD106; they werechecked for lipogenic and osteogenic differentiation. The cells of the CAs were immunoreactive to nestin. ThehNSCs were immunoreactive to nestin and NF-68, also, they expressed SOX2, Oct-4 and nanong. Nestin expressiondeclined sharply following NSC differentiation into CNs, while the expression of NF-200, synapsin I, synaptophysin,MAP-2 and ChAT increased. They were stained with FM1-43, where the synaptic vesicles were releasedfollowing stimulation. The present study demonstrates the conversion of hBMSCs into CASs under appropriate conditions. CAs generated hNSCs, which were induced in order to differentiate into CNs using sequential media, wherethe yield was 83%.
Deep learning based SOC estimation for Hybrid Energy Storage System
M. Adib Kamali(아딥),Angela Caliwag(안제라),Wansu Lim(임완수) 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.2
This paper proposes deep learning-based state of charge (SOC) estimation for battery/supercapacitor hybrid energy storage system. Specifically, the proposed method used measurable battery data and artificial neural network to ensure that the proposed model is suitable for practical application. This paper also focuses on the reduction of the error caused by the disregard of dynamic charge and discharge process. We propose to separate the charge and discharge model to capture the dynamic SOC degradation. Results indicate that estimating SOC with our model reduced the root mean square error with respect to actual datasets.