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Forecasting promising technology using analysis of patent information:Focused on next generation mobile communications

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Journal of Central South University 2014年第11期21卷 4303-4310页

作者： CHOI seung-Wook YOU Yen-yoo NA Kwan-Sik Department of Knowledge Service & Consulting Hansung UniversitySeoul Korea Department of Management Information Systems Seowon UniversityCheongju Korea

In order to forecast promising technologies in the field of next generation mobile communication, various patent indicators were analyzed such as citation per patent, patent family information, patent share, increase rate, and patent activity. These indicators were quantified into several indexes and then integrated into an evaluation score to provide promising technologies. As a result of the suggested patent analysis, four technologies out of twenty two in details classification were selected, which showed outstanding technology competitiveness, high patent share and increasing rates as well as high recent-patent-ratios and triad-patent-family-ratios. Each of the selected technologies scored more than 10 points in total, and the following four technologies were suggested as promising ones in the field of next generation mobile communication: 1) 3GPP based mobile communication, 2) beyond 4G mobile communication, 3) IEEE 802.16 based mobile communication, which are in medium classification of broadband mobile communication system, and 4) testing/certification system of mobile communication, which is in medium classification of mobile communication testing/certification system.

关键词： next generation mobile communication promising technology forecasting patent information patent analysis patent indicators

Removal of heavy metals using waste eggshell

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Journal of Environmental Sciences 2007年第12期19卷 1436-1441页

作者： PARK Heung Jai JEONG Seong Wook YANG Jae Kyu KIM Boo Gil LEE seung mok School of Environmental Science and Engineering Inje University 621-749607GyungnamKorea. Department of Environmental Engineering Kwangwoon University SeoulKorea Division of Architecture and Civil Engineering Dong-seo University BusanKorea Department of Environment and Disaster Prevention Kwandong University GangneungKorea

The removal capacity of toxic heavy metals by the reused eggshell was studied. As a pretreatment process for the preparation of reused material from waste eggshell, calcination was performed in the furnace at 800℃ for 2 h after crushing the dried waste eggshell. Calcination behavior, qualitative and quantitative elemental information, mineral type and surface characteristics before and after calcination of eggshell were examined by thermal gravimetric analysis （TGA）, X-ray fluorescence （XRF）, X-ray diffraction （XRD） and scanning electron microscopy （SEM）, respectively. After calcination, the major inorganic composition was identified as Ca （lime, 99.63%） and K, P and Sr were identified as minor components. When calcined eggshell was applied in the treatment of synthetic wastewater containing heavy metals, a complete removal of Cd as well as above 99% removal of Cr was observed after 10 rain. Although the natural eggshell had some removal capacity of Cd and Cr, a complete removal was not accomplished even after 60 rain due to quite slower removal rate. However, in contrast to Cd and Cr, an efficient removal of Pb was observed with the natural eggshell rather than the calcined eggshell. From the application of the calcined eggshell in the treatment of real electroplating wastewater, the calcined eggshell showed a promising removal capacity of heavy metal ions as well as had a good neutralization capacity in the treatment of strong acidic wastewater.

关键词： wasted eggshell CaO removal heavy metals

Extracorporeal membrane oxygenation for lung cancer-related life-threatening hypoxia:A case report

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World Journal of Clinical Cases 2022年第25期10卷 8974-8979页

作者： seung Soo yoo Shin Yup Lee Sun Ha Choi Department of Internal Medicine Kyungpook National UniversityDaegu 41404South Korea Lung Cancer Center Kyungpook National University Chilgok HospitalDaegu 41404South Korea

BACKGROUND Life-threatening hypoxia can occur in patients with lung cancer due to bronchial *** membrane oxygenation(ECMO)can be used as a bridge therapy for patients with severe hypoxia not relieved by conventional mechanical ***,the usefulness of chemotherapy in patients with lung cancer receiving ECMO therapy is not well *** SUMMARY A 53-year-old man visited the emergency room with worsening dyspnea for 1 mo.A series of imaging and diagnostic tests were performed,and stageⅢB(cT4N2M0)lung cancer was eventually *** hospital day 3,he experienced dyspnea and hypoxia that was not relieved with oxygen support via a high-flow nasal *** was initiated because his respiratory condition did not improve even with mechanical *** patient then underwent gemcitabine/cisplatin chemotherapy without dose reduction while on *** two cycles of chemotherapy,there was a decrease in the size of the primary tumor in the right main *** the completion of concurrent chemoradiotherapy,a computed tomography scan revealed further improvement in the right main bronchus *** months after a lung cancer diagnosis,the patient did well without any *** ECMO is a potential bridge therapy for respiratory failure in patients with central airway obstruction secondary to lung cancer.

关键词： Extracorporeal membrane oxygen Lung cancer Hypoxia Respiratory failure Chemoradiotherapy Case report

Reliability and validity of tongue color analysis in the prediction of symptom patterns in terms of East Asian Medicine

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Journal of Traditional Chinese Medicine 2016年第2期36卷 165-172页

作者： Young-Jae Park Jin-Moo Lee seung-Yeon yoo Young-Bae Park Department of Diagnosis and Biofunctional Medicine College of Korean MedicineKyung Hee UniversitySeoul 134-727Korea Department of Diagnosis and Biofunctional Medicine Kyung Hee University Hospital at GangdongSeoul 134-727Korea Department of Oriental Gynecology College of Korean MedicineKyung Hee UniversitySeoul 134-727Korea Department of Women Health Clinic Kyung Hee University Hospital at GancldonaSeoul 134-727Knrpa

OBJECTIVE:To examine whether color parameters of tongue inspection(TI)using a digital camera was reliable and valid,and to examine which color parameters serve as predictors of symptom patterns in terms of East Asian medicine(EAM).METHODS:Two hundred female subjects'tongue substances were photographed by a mega-pixel digital *** with the photographs,the subjects were asked to complete Yin deficiency,Phlegm pattern,and Cold-Heat pattern *** three sets of digital imaging software,each digital image was exposure-and white balance-corrected,and finally L*(luminance),a*(red-green balance),and b*(yellow-blue balance)values of the tongues *** examine intra-and inter-rater reliabilities and criterion validity of the color analysis method,three raters were asked to calculate color parameters for 20 digital image ***,four hierarchical regression models were ***:Color parameters showed good or excellent reliability(0.627-0.887 for intra-class correlation coefficients)and significant criterion validity(0.523-0.718 for Spearman's correlation).In the hierarchical regression models,age was a significant predictor of Yin deficiency(β=0.192),and b*value of the tip of the tongue was a determinant predictor of Yin deficiency,Phlegm,and Heat patterns(β=-0.212,-0.172,and-0.163).Luminance(L*)was predictive of Yin deficiency(β=-0.172)and Cold(β=0.173)***:Our results suggest that color analysis of the tongue using the L*a*b*system is reliable and valid,and that color parameters partially serve as symptom pattern predictors in EAM practice.

关键词： Medicine East Asian Traditional Complementary therapies Tongue inspection Yin deficiency Symptom pattern

pH-induced structural changes of surface immobilized poly (L-lysine) by two-dimensional (2D) infrared correlation study

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Chinese Chemical Letters 2015年第2期26卷 173-176页

作者： Eun Joo yoo Boknam Chae Young Mee Jung seung Woo Lee School of Chemical Engineering Yeungnam University Pohang Accelerator Laboratory Department of Chemistry Kangwon National University

This paper reports the pH-induced structural changes in the surface immobilized poly（L-lysine）（PLL）***-dimensional（2D） correlation analysis was applied to the Fourier transform infrared（FTIR）spectra of the surface-immobilized PLL film to examine the spectral changes induced by the alternations of the protonation state of the amino group in the side *** spectral changes in the FTIR spectra of the PLL film were observed between pH 7 and *** decrease in the protonation state of the amino group in the side chain induced spectral changes in the amino group as well as conformational changes in the alky]group in the side *** pH 1-8,the spectral changes in the amino and alkyl groups in the side chain occurred before those of the amide group in the main chain of the surface immobilized PLL film.

关键词： Poly(L-lysine)(PLL) Surface-immobilized polypeptide FT-IR spectroscopy 2D correlation spectroscopy

An Overview of Current Oriental Medicine Herbal Cancer Research in Korea

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Chinese Journal of Integrative Medicine 2011年第4期17卷 251-256页

作者： Jeungwon yoon Hwa-seung yoo Yeon-Weol Lee Chong-Kwan Cho East-West Cancer Center Dunsan Oriental Medical Hospital of Daejeon UniversityDaejeonRepublic of Korea

Cancer is the number one cause of death in Korea with annual mortalities of 69 *** suggests one in every four Koreans will end up getting cancer at some point in their life *** these persistent threats,strive for cancer cure is continued. Ten years of Korea＇s oriental medicine herbal research on cancer have been reviewed. Researches between the years of 2000 and 2010 are analyzed in terms of their published year,study types,tested subjects,testing measures,cancer types,and *** the past ten years,cancer researches have blossomed from null to full in Korean peninsula, and further development is much anticipated in the next ten years to come.

关键词： oriental medicine herbal research cancer Korea

Extremely rare case of necrotizing gastritis in a patient with autoimmune hepatitis: A case report

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World Journal of Clinical Cases 2021年第14期9卷 3472-3477页

作者： seung Ki Moon Jeong-Ju yoo Sang Gyune Kim Young Seok Kim Department of Internal Medicine Soonchunhyang University Bucheon HospitalBucheon 14584South Korea Department of Gastroenterology and Hepatology Soonchunhyang University School of MedicineBucheon 14584South Korea

BACKGROUND Autoimmune hepatitis can cause liver fibrosis,liver cirrhosis,and hepatocellular *** treatment option include the use of steroids and/or immunesuppressive agents such as ***,these drugs have some side ***,close follow-up is needed during ***,we present an extremely rare case of a patient with an autoimmune hepatitis who died from necrotizing gastritis during immunosuppressive *** SUMMARY A 52-year-old female patient was diagnosed with autoimmune *** treated this patient with immunosuppressive ***-dose steroid treatment was initially *** azathioprine treatment was added while steroid was *** weeks after the start of treatment,she visited the emergency room due to generalized abdominal pain and *** computed tomography scan,the patient was diagnosed with necrotizing gastritis and the patient progressed to septic *** for sepsis was continued in the intensive care ***,the patient died at 6 h after admission to the emergency *** In patients with autoimmune infections undergoing immunosuppressant therapy,rare complications such as necrotizing gastritis may occur,thus requiring clinical attention.

关键词： Autoimmune hepatitis Azathioprine Case report

Complete resection of large-cell neuroendocrine and hepatocellular carcinoma of the liver: A case report

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World Journal of Clinical Cases 2022年第23期10卷 8277-8283页

作者： Byeong Gwan Noh Hyung-Il Seo Young mok Park Suk Kim seung Baek Hong So Jeong Lee Division of HBP Surgery and Transplantation Department of SurgeryPusan National University School of MedicineBiomedical Research InstitutePusan National University HospitalBusan 49241South Korea Department of Radiology Pusan National University School of MedicineBiomedical Research InstitutePusan National University HospitalBusan 49241South Korea Department of Pathology Pusan National University School of MedicineBiomedical Research InstitutePusan National University HospitalBusan 49241South Korea

BACKGROUND Combined tumors comprising large-cell neuroendocrine carcinoma and hepatocellular carcinoma have been rarely reported in the *** SUMMARY We report a case of a 73-year-old woman with chronic hepatitis B suspected to have a malignant hepatic mass(segment 3;size,4.5 cm)and lymph node metastasis based on computed tomography and magnetic resonance *** being Child-Pugh class A,esophageal varices were *** underwent left lateral sectionectomy and lymph node *** examination revealed a collision tumor consisting of large-cell neuroendocrine(90%)and hepatocellular(10%)*** combined carcinoma had metastasized to one of the three lymph nodes *** patient recovered without any postoperative complications and was discharged in good condition on postoperative day *** chemotherapy was not *** recurrence occurred during a follow-up period of 24 *** To improve the therapeutic management of combined tumors in the liver,it is necessary to discuss each clinical experience and consider an appropriate method for the preoperative diagnosis and treatment.

关键词： Hepatocellular carcinoma Neuroendocrine carcinoma Chronic hepatitis B Case report

Curved copper nanowires-based robust flexible transparent electrodes via all-solution approach

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Nano Research 2017年第9期10卷 3077-3091页

作者： Zhenxing Yin seung Keun Song Sanghun Cho Duck-Jae You Jeeyoung yoo Suk Tai Chang Youn Sang Kim Program in Nano Science and Technology Graduate School of Convergence Science and Technology Seoul National University Seoul 08826 Republic of Korea School of Chemical Engineering and Materials Science Chung-Ang University Seou106974 Republic of Korea Advanced Institutes of Convergence Technology 145 Gwanggyo-ro Yeongtong-gu Suwon-si Gyeonggi-do 16229 Republic of Korea

Curved Cu nanowire (CCN)-based high-performance flexible transparent conductive electrodes (FTCEs) were fabricated via a fully solution-processed approach, involving synthesis, coating, patterning, welding, and transfer. Each step involved an innovative technique for completing the all-solution processes. The high-quality and well-dispersed CCNs were synthesized using a multi-polyol method through the synergistic effect of specific polyol reduction. To precisely control the optoelectrical properties of the FTCEs, the CCNs were uniformly coated on a polyimide (PI) substrate via a simple meniscus-dragging deposition method by tuning several coating parameters. We also employed a polyurethane (PU)-stamped patterning method to effectively produce 20 μm patterns on CCN thin films. The CCN thin films exhibited high electrical performance, which is attributed to the deeply percolated CCN network formed via a solvent-dipped welding method. Finally, the CCN thin films on the PI substrate were partially embedded and transferred to the PU matrix to reduce their surface roughness. Through consecutive processes involving the proposed methods, a highly percolated CCN thin film on the PU matrix exhibited high optoelectrical performance (R s = 53.48 Ω/□ at T = 85.71%), excellent mechanical properties (R/R 0 < 1.10 after the 10th repetition of tape peeling or 1,000 bending cycles), and a low root-mean-square surface roughness (R rms = 14.36 nm).

关键词： curved Cu nanowires all-solution processes 20 μm patterns high performance transparent electrode