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Game “Divi-Divi-Dip” Based on Interactive Robot

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Journal of Measurement Science and Instrumentation 2011年第1期2卷 30-33页

作者： Sung-ju YUN kee-chul jung Dept.of Digital Media Human-Centered Interfaces LabSoongsil UniversitySeoul 156-743Korea

Recently the improved robot working in very various fields, many researchers are trying to develop the robot to help people in the service field. However people who meet a robot in the first time gen- erally get heterogeneous feeling. To resolve this, we suggest an inter- active game with robots to increase the friendliness. The game, called ＂Divi-Divi-Dip＂ with 3 different body poses, is first introduced in a Korean TV prgrmn. The robot is using the visionary technology to recognize the pose with camera for the interactive game.

关键词： Divi- Divi- Dip chamfer distance template matching interactive game

Design and Implementation of User Centered Interface on Mobile Phone

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Journal of Measurement Science and Instrumentation 2010年第4期1卷 330-333页

作者： Hoa-minh LE Kwang-jin HONG kee-chul jung Department of Media Soongsil University

Mobile device research has been increasing rapidly in Human Computer Interaction （HCI） recently. Following this trend, this paper proposes a user-centered interface, which has been designed, completely installed and independently run on a mobile phone. Video signal is steamed through its camera as the image input to the interface by employing techniques of image processing, computer vision and graphics to identify automatically absolute positions of human face, neck and two hands. A paradigm is also put up theoretically. And it embeds this interface to perceive the human postures and convert them into relaxed comic character according to its context.

关键词： user-centered interface human postures comic character

Face Detection from Four Captured Images Related to Intelligent Room for the Deaf

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Journal of Measurement Science and Instrumentation 2010年第4期1卷 338-342页

作者： Young-joon OH Jong-in KIM Taeh-yun YOON kee-chul jung Dept.of Digital Media Soongsil University

The intelligent environment needs Human-Computer Interactive technology （HCI） and a projector projects screen on wall in the intelligent environments. We propose the front-face detection from four captured images related to the intelligent room for the deaf. Our proposal purpose is that a deaf user faces wall displaying everywhere. system gets the images from four cameras, and detects the user region from a silhouette image using a different method, detects and cuts a motion body region from a different image, and cuts the vertexchest region from the cut body region image. The system attempts to find front-face using Haar-like feature, and selects a detected front-face image from the vertex-chest region. We estimate the front-face detection of recognition rate, which shows somewhat successfully.

关键词： face detection hand gesture intellegence room everdispalys image processing

Insights into female germ cell biology： from in vivo development to in vitro derivations

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Asian Journal of Andrology 2015年第3期17卷 415-420页

作者： Dajung jung Kehkooi kee Department of Basic Medical Sciences Center for Stem Cell Biology and Regenerative Medicine School of Medicine Tsinghua University Beijing 100084 China

Understanding the mechanisms of human germ cell biology is important for developing infertility treatments. However, little is known about the mechanisms that regulate human gametogenesis due to the difficulties in collecting samples, especially germ cells during fetal development. In contrast to the mitotic arrest of spermatogonia stem cells in the fetal testis, female germ cells proceed into meiosis and began folliculogenesis in fetal ovaries. Regulations of these developmental events, including the initiation of meiosis and the endowment of primordial follicles, remain an enigma. Studying the molecular mechanisms of female germ cell biology in the human ovary has been mostly limited to spatiotemporal characterizations of genes or proteins. Recent efforts in utilizing in vitro differentiation system of stem cells to derive germ cells have allowed researchers to begin studying molecular mechanisms during human germ cell development. Meanwhile, the possibility of isolating female germline stem cells in adult ovaries also excites researchers and generates many debates. This review will mainly focus on presenting and discussing recent in vivo and in vitro studies on female germ cell biology in human. The topics will highlight the progress made in understanding the three main stages of germ cell developments： namely, primordial germ cell formation, meiotic initiation, and folliculogenesis.

关键词： embryonic stem cell female germline stem cell folliculogenesis in vitro derivations meiotic initiation primordial germ cell

Formation Mechanism of Chunky Graphite and Its Preventive Measures

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Journal of Materials Science & Technology 2008年第3期24卷 289-295页

作者： Hideo Nakae Sanghoon jung Ho-chul Shin Department of Materials Science and Engineering Waseda University National Institute of AIST Corporate Res.and Dev.Div. Hyundai.Kia Motors

The formation mechanism of chunky graphite has been reviewed and studied. The study consisted of a unidirectional solidification method, a small droplet method and a furnace cooling method. Four kinds of iron samples were prepared, namely, the pure Fe-C, Fe-C-S, Fe-C-Ce and Fe-C-Si-Ce alloys, and three kinds of nickel samples, namely the Ni-C, Ni-C-S and Ni-C-Mg alloys. The results of the unidirectional solidification of the Ni-C alloys showed that spheroidal graphite is not observed in the continuous solidified region, in which only flake-like graphite is observed, while spheroidal graphite is usually observed in the quenched liquid region. The existence of spheroidal graphite in the solidified phase is recognized only in the discontinuous growth mode of the Ni-C-Mg alloy solidified at 150 mm/h. This means that the spheroidal graphite is directly crystallized from the melt and entrapped by the flake-like chunky graphite that is formed by the continuous growth mode. In the small droplet method, a small piece of the Fe-C or Fe-C-Ce sample was melted on a pure graphite plate then cooled at a different cooling rate in a He-3%H2 atmosphere. The graphite in the Fe-C-Ce alloy is usually spherical. Nevertheless, the graphite morphology of the final solidified area changed from spherical to chunky and chunky to ledeburite with an increase in the cooling rate. This means that the chunky graphite is formed in the residual liquid region by the solidification into Fe-graphite system. The sample was cooled in a furnace, and the graphite morphology changes from spherical to chunky and chunky to ledeburite with the decrease in the Si content. These phenomena can be confirmed by the cooling curves of these samples.

关键词： Chunky graphite Spheroidal graphite Solidification Cooling curve

Discovering High-Quality Threaded Discussions in Online Forums

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Journal of Computer Science & Technology 2014年第3期29卷 519-531页

作者： jung-Tae Lee Min-chul Yang Hae-Chang Rim Department of Computer and Radio Communications Engineering Korea UniversitySeoul 136-713Korea

Archives of threaded discussions generated by users in online forums and discussion boards contain valuable knowledge on various topics. However, not all threads are useful because of deliberate abuses, such as trolling and flaming, that are commonly observed in online conversations. The existence of various users with different levels of expertise also makes it difficult to assume that every discussion thread stored online contains high-quality contents. Although finding high-quality threads automatically can help both users and search engines sift through a huge amount of thread archives and make use of these potentially useful resources effectively, no previous work to our knowledge has performed a study on such task. In this paper, we propose an automatic method for distinguishing high-quality threads from low-quality ones in online discussion sites. We first suggest four different artificial measures for inducing overall quality of a thread based on ratings of its posts. We then propose two tasks involving prediction of thread quality without using post rating information. We adopt a popular machine learning framework to solve the two prediction tasks. Experimental results on a real world forum archive demonstrate that our method can significantly improve the prediction performance across all four measures of thread quality on both tasks. We also compare how different types of features derived from various aspects of threads contribute to the overall performance and investigate key features that play a crucial role in discovering high-quality threads in online discussion sites.

关键词： online forum discussion board thread quality

Oxidative coupling of methane over LaAlO3 perovskite catalysts prepared by a co-precipitation method: Effect of co-precipitation pH value

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Journal of Energy Chemistry 2019年第8期28卷 1-8,I0001页

作者： Yujin Sim Jihoon Yoo Jeong-Myeong Ha Ji chul jung Department of Chemical Engineering Myongji UniversityYongin 17058 Republic of Korea Clean Energy Research Center Korea Institute of Science and TechnologySeoul 02792 Republic of Korea

Oxidative coupling of methane(OCM) was conducted over LaAlO3X catalysts that were prepared by a coprecipitation method using different co-precipitation pH values(X = 6–10). The aim is to investigate the effect of p H values on the catalytic activity of La AlO3 catalysts in this reaction. The results showed that the co-precipitation pH value affected greatly on the formation of chemical species of precipitate precursors in the co-precipitation step, leading to different phases of the finally obtained LaAlO3 *** the co-precipitation pH value increased up to 8, the lanthanum-related phases such as La2 O3 and La(OH)3 were gradually formed as by-products, preventing the formation of LaAlO3 perovskite crystalline structure and facilitating the formation of oxygen vacancies on catalyst surface. However, at pH value of9 or higher, the lanthanum content in the precipitate precursor was increased greatly. Not LaAlO3 perovskite but lanthanum-related phases were developed as main phases, reducing their catalytic activities in this reaction. Among LaAlO3 catalysts, the one prepared at pH = 8 showed the highest C2 yield due to its well-developed oxygen vacancies and electrophilic lattice oxygen. Therefore, the co-precipitation pH value strongly affected the LaAlO3 catalyst activity in OCM reaction. A precious pH control should be required to prepare various perovskite catalysts for the OCM.

关键词： LaAlO3 Perovskite Oxidative coupling of methane Co-precipitation pH value

Neonatal erythema multiforme associated with a rotavirus infection:A case report

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World Journal of Clinical Cases 2023年第24期11卷 5749-5754页

作者： jung Jae Kim Joon kee Lee Department of Pediatrics Chungbuk National University HospitalCheongju 28644South Korea Department of Pediatrics Chungbuk National UniversityCheongju 28644South Korea

BACKGROUND Erythema multiforme(EM)is an extremely rare condition in neonates,and studies suggest its association with certain infections and neonatal vaccinations;however,few specific etiological agents have been ***,a common pathogenic gastrointestinal virus in the neonatal period that is preventable via vaccination,has not been identified as a possible *** report the case of a neonate who was referred for skin lesions presenting as EM,where a meticulous workup identified rotavirus as the sole causative *** SUMMARY A 14-day-old male infant was admitted to our hospital with a 1-day history of skin *** medical history or medication intake was *** for the complaint of skin lesions,the caregivers denied any abnormal *** tests,including routine laboratory evaluations,were performed to identify the cause of skin *** tests for Immunoglobulin M for Toxoplasma,Rubella,Cytomegalovirus,Herpes Simplex Virus,and Epstein-Barr virus viral-capsid antigen were all *** polymerase chain reaction(PCR)tests for respiratory viruses and bacterial pathogens were negative(including the severe acute respiratory syndrome coronavirus 2).Multiple PCR tests for gastrointestinal viruses and bacterial pathogens demonstrated evidence of rotavirus *** growth was reported in the blood and urine *** patient received intravenous fluids for hydration;meanwhile,no other medications were *** lesions improved rapidly without specific treatment,and full recovery was achieved within a *** The possibility of rotavirus,a major cause of pediatric gastrointestinal infections,being a trigger for neonatal EM should be considered.

关键词： Erythema multiforme Gastrointestinal diseases Neonate Rotavirus Skin abnormalities Case report

Parasitic leiomyoma in the trocar site after laparoscopic myomectomy:A case report

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World Journal of Clinical Cases 2022年第9期10卷 2895-2900页

作者： chul Kyu Roh Hyuk-Jae Kwon Min jung jung Department of Surgery National Police HospitalSeoul 05715South Korea Department of Surgery Ajou University School of MedicineSuwon 16499South Korea Department of Pathology College of MedicineThe Catholic University of KoreaSeoul 06591South Korea

BACKGROUND Laparoscopic myomectomy is increasingly used for resecting gynecological *** require morcellation for retrieval from the peritoneal ***,morcellated fragments may implant on the peritoneal cavity during *** fragments may receive a new blood supply from an adjacent structure and develop into parasitic *** leiomyomas can occur spontaneously or iatrogenically;however,trocar-site implantation is an iatrogenic complication of laparoscopic uterine *** describe a parasitic leiomyoma in the trocar-site after laparoscopic myomectomy with power *** SUMMARY A 50-year-old woman presented with a palpable abdominal mass without significant medical *** patient had no related symptoms,such as abdominal *** tomography findings revealed a well-defined contrast-enhancing mass measuring 2.2 cm,and located on the trocar site of the left abdominal *** had undergone laparoscopic removal of uterine fibroids with power morcellation six years *** differential diagnosis included endometriosis and neurogenic tumors,such as *** radiologic diagnosis was a desmoid tumor,and surgical excision of the mass on the abdominal wall was successfully *** patient recovered from the surgery without *** examination revealed that the specimen resected from the trocar site was a uterine *** Clinicians should consider the risks and benefits of laparoscopic vs laparotomic myomectomy for gynecological *** caution must be exercised for morcellation to avoid excessive tissue fragmentation.

关键词： Laparoscopic myomectomy Parasitic leiomyoma Trocar site Implantation Morcellation Case report