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suppression of Oxidative Stress of Modified Gongjin-Dan (WSY^1075) in Detrusor Underactivity Rat Model Bladder Outlet Induced by Obstruction

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Chinese Journal of Integrative Medicine 2018年第9期24卷 670-675页

作者： Jin-Woo Jung Seung Hwan Jeon Woong Jin Bae su Jin Kim mun su chung Byung II Yoon Sae Woong Choi U Syn Ha sung Yeoun Hwang Sae Woong Kim Department of Urology International St. Mary's Hospital Catholic Kwandong University College of Medicine Incheon Republic of Korea Institute for Bio-Medical Convergence College of Medicine Catholic Kwandong University Gangneungsi Gangwon-do Republic of Korea Department of Urology College of Medicine The Catholic University of Korea Seoul Republic of Korea Catholic Integrative Medicine Research Institute College of Medicine The Catholic University of Korea Seoul Republic of Korea Korea Bio Medical Science Institute Seoul Republic of Korea

Objective： To investigate the anti-oxidative stress and preventive effect of modified Gongjin-dan （WSY-1075） in a detrusor underactivity rat model. Methods： Rats were randomly allocated to three groups： sham- operated （control）, bladder outlet obstruction-induced detrusor underactivity （BOO-DU）, and BOO-DU with WSY-1075 （WSY） groups. WSY-1075 was orally administrated to rats 200 mg daily for 2 weeks pdor to the operation and 4 weeks after the operation. Bladder outlet obstruction was surgically induced in rats by ligation around the urethra avoiding total obstruction. Cystometrography was conducted on rats in each group for examination of bladders. Results： Compared with the control group, bladder outlet obstruction led to a significant increase in oxidative stress with consequent changes to molecular composition, and decrease in maximal detrusor pressure （P〈0.05）. WSY-1075 treatment significantly suppressed oxidative stress and prevented degenerative and dysfunctional changes in bladder, as compared with BOO-DU group （P〈0.05）. Conclusion： WSY-1075 had beneficial effect on prevention of BOO-DU.

关键词： detrusor underactivity anti-oxidant herbal

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Automatic Discontinuity Classification of Wind-turbine Blades Using A-scan-based Convolutional Neural Network

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Journal of Modern Power Systems and Clean Energy 2021年第1期9卷 210-218页

作者： Jiyeon Choung sun Lim Seung Hwan Lim su chung Chi mun Ho Nam Korea Electronics Technology Institute 401-402Bucheon Technopark655Pyeongcheon-roWonmi-guBucheon-siGyeonggi-do 14502Korea Sam Yong Inspection Engineering Co.Ltd.

Recent development trends in wind power generation have increased the importance of the safe operation of wind-turbine blades(WTBs). To realize this objective, it is essential to inspect WTBs for any defects before they are placed into operation. However, conventional methods of fault inspection in WTBs can be rather difficult to implement, since complex curvatures that characterize the WTB structures must ensure accurate and reliable inspection. Moreover, it is considered useful if inspection results can be objectively and consistently classified and analyzed by an automated system and not by the subjective judgment of an inspector. To address this concern,the construction of a pressure-and shape-adaptive phased-array ultrasonic testing platform, which is controlled by a nanoengine operation system to inspect WTBs for internal defects, has been presented in this paper. An automatic classifier has been designed to detect discontinuities in WTBs by using an A-scanimaging-based convolutional neural network(CNN). The proposed CNN classifier design demonstrates a classification accuracy of nearly 99%. Results of the study demonstrate that the proposed CNN classifier is capable of automatically classifying the discontinuities of WTB with high accuracy, all of which could be considered as defect candidates.

关键词： Wind-turbine blade(WTB) blade inspection platform convolutional neural network(CNN) discontinuity phased-array ultrasonic testing(PAUT) A-scan

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Fabrication of La,Ce co-doped ZnO nanorods for improving photodegradation of methylene blue

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Journal of Rare Earths 2024年第1期42卷 76-83,I0003页

作者： Erfan Hakim Azmal Zaid Jin-chung Sin Sze-mun Lam Abdul Rahman Mohamed School of Chemical Engineering Universiti Sains Malaysia(USM)14300Nibong TebalPenangMalaysia College of Environmental Science and Engineering Guilin University of TechnologyGuilin541004China Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control Guilin University of TechnologyGuilin541004China Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area Guilin University of TechnologyGuilin541004China Faculty of Engineering and Green Technology Universiti Tunku Abdul RahmanJalan UniversitiBandar Barat31900KamparPerakMalaysia

La,Ce co-doped ZnO nanorods(ZnLC)were synthesized through a one-step solvothermal *** photocatalysts were characterized by X-ray diffraction,Raman spectroscopy,field-emission scanning electron microscopy,energy dispersive X-ray,transmission electron microscopy,UV-vis diffuse reflectance spectroscopy and photo luminescence *** La and Ce doping enhanced the visible light absorption ability of ZnLC and a red shift was detected for *** simulated solar light irradiation,the ZnO doped with 3 at%La and 1 at%Ce(ZnLC1)degrades methylene blue(MB)more effectively than those of pure ZnO,La-doped ZnO(ZnL)and commercially available *** improved photocatalytic performance of ZnLC1 can be attributed to the high charge separation efficiency as demonstrated by the photoluminescence ***,the photocatalytic experiments reveal that several parameters have their own impact on the MB *** a variety of radical scavengers,it is discovered that superoxide anion radical plays a crucial role in the degradation of *** ZnLC1 is also reused several times without noticeable decrease of photoactivity,indicating that it has a substantial potential for environmental remediation applications.

关键词： ZnO Lanthanum Cerium Co-doping Photodegradation Rare earths

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Rapidly growing primary anal canal lymphoma:a case report and literature review

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Gastroenterology Report 2023年第1期11卷 582-584页

作者： Yu Kyung chung su Bum Park Department of Internal Medicine Pusan National University School of Medicine and Research Institute for Convergence of Biomedical Science and TechnologyPusan National University Yangsan HospitalYangsanRepublic of Korea

Introduction Anal cancer is a rare cancer accounting for2%of all gastrointestinal tract malignancies[1].Among anal cancers,squamous cell cancer(SCC)is the most common and lymphoma is one of the least *** gastrointestinal tract is the most common site for extranodal non-Hodgkin’s lymphoma(NHL),and diffuse large B-cell lymphoma(DLBCL)is the most common histologic ***,primary colorectal lymphoma accounts for only 0.3%of all large intestinal malignancies and3%of all gastrointestinal lymphomas[2].Anal canal SCC and lymphomas are treated differently;thus,accurate diagnosis is crucial.

关键词： lymphoma gastrointestinal diagnosis

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Coral-Like Yolk–Shell-Structured Nickel Oxide/Carbon Composite Microspheres for High-Performance Li-Ion Storage Anodes

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Nano-Micro Letters 2019年第1期11卷 46-63页

作者： Min su Jo subrata Ghosh Sang mun Jeong Yun Chan Kang Jung Sang Cho Department of Engineering Chemistry Chungbuk National University Department of Chemical Engineering Chungbuk National University Department of Materials Science and Engineering Korea University

In this study, coral?like yolk–shell?structured NiO/C composite microspheres(denoted as CYS?NiO/C) were prepared using spray pyrolysis. The unique yolk–shell structure was characterized, and the formation mechanism of the structure was proposed. Both the phase separation of the polyvinylpyrrolidone and polystyrene(PS) colloidal solution and the decompo?sition of the size?controlled PS nanobeads in the droplet played crucial roles in the formation of the unique coral?like yolk–shell structure. The CYS?NiO/C microspheres delivered a reversible discharge capacity of 991 mAh g^(-1) after 500 cycles at the current density of 1.0 A g^(-1). The dis?charge capacity of the CYS?NiO/C microspheres after the 1000 th cycle at the current density of 2.0 A g^(-1) was 635 mAh g^(-1), and the capacity retention measured from the second cycle was 91%. The final discharge capacities of the CYS?NiO/C microspheres at the current densities of 0.5, 1.5, 3.0, 5.0, 7.0, and 10.0 A g^(-1) were 753, 648, 560, 490, 440, and 389 mAh g^(-1), respectively. The synergetic e ect of the coral?like yolk–shell structure with well?defined interconnected mesopores and highly conductive carbon resulted in the excellent Li+?ion storage properties of the CYS?NiO/C microspheres.

关键词： Yolk-shell Nickel oxide Carbon composite Anode materials Spray pyrolysis Lithium-ion batteries

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Bilateral cerebral infarction in diabetic ketoacidosis and bilateral internal carotid artery occlusion:A case report and review of literature

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World Journal of Clinical Cases 2021年第15期9卷 3787-3795页

作者： Yi-chung Chen su-Ju Tsai Department of Physical Medicine and Rehabilitation Chung Shan Medical University HospitalTaichung 40201Taiwan

BACKGROUND Diabetic ketoacidosis(DKA)is a serious complication of type 1 diabetes mellitus(T1DM).Very rarely does DKA lead to cerebral edema,and it is even rarer for it to result in cerebral *** internal carotid artery occlusion(BICAO)is also rare and can cause fatal ***,case reports about acute cerebral infarction throughout both internal carotid arteries with simultaneous BICAO are very *** this study,we present a patient with BICAO,T1DM,hypertension,and hyperlipidemia,who had a catastrophic bilateral cerebral infarction after a DKA *** briefly introduce BICAO and the mechanisms by which DKA results in cerebral *** suMMARY A 41-year-old woman presented with ischemic stroke that took place 3 mo prior over the left corona radiata,bilateral frontal lobe,and parietal lobe with right hemiplegia and Broca’s *** had a history of hypertension for 5 years,hyperlipidemia for 4 years,hyperthyroidism for 3 years,and T1DM for 31 *** first brain magnetic resonance imaging not only revealed the aforementioned ischemic lesions but also bilateral internal carotid artery *** was admitted to our ward for rehabilitation due to prior stroke *** took place on hospital day *** hospital day 6,she had a new massive infarction over the bilateral anterior cerebral artery and middle cerebral artery *** weeks of aggressive treatment,she remained in a coma and on mechanical ventilation due to respiratory *** discussion with her family,compassionate extubation was performed on hospital day 29 and she *** DKA can lead to cerebral infarction due to several *** people with existing BICAO and several stroke risk factors such as hypertension, T1DM,hyperlipidemia, DKA has the potential to cause more serious ischemic strokes.

关键词： Type 1 diabetes mellitus Diabetic ketoacidosis Bilateral internal carotid artery occlusion Cerebral infarction Case report

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Acute esophageal obstruction after ingestion of psyllium seed husk powder:A case report

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World Journal of Clinical Cases 2022年第7期10卷 2336-2340页

作者： sujeong Shin Jung Ho Kim You Ho mun Han Sol chung Department of Emergency Medicine Yeungnam University School of Medicine and College of MedicineDaegu 42415South Korea

BACKGROUND Bezoar is a mass of hardened external material found in the gastrointestinal(GI)*** may form anywhere in the GI tract,but esophageal bezoar is rare because of the short esophageal transit *** seed husk is an indigestible natural derivative that is widely used as an herbal ***,we report a case of acute esophageal obstruction caused by a bezoar after ingestion of psyllium seed husk *** suMMARY A 76-year-old male with Parkinson’s disease visited the emergency department with swallowing difficulty approximately 10 h after ingesting psyllium seed husk *** began a few hours after ingestion and progressed to severe *** were no abnormal findings on simple ***,a computed tomography scan revealed an approximately 2.0 cm×2.5 cm mass located near the gastro-esophageal *** grinding,the mass was removed using an endoscopic capture *** bezoars may cause life-threatening *** with Parkinson’s disease may have esophageal motility dysfunction,which may increase esophageal transit *** our patient had Parkinson’s disease,this effect may have contributed to the formation of the *** Attention should be paid to using bulk-laxatives,and an appropriate specified regimen will be needed when marketed as a dietary supplement.

关键词： Bezoar Esophagus Obstruction Parkinson’s disease Psyllium Case report

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Data-Hiding Based on sudoku and Generalized Exploiting Modification Direction

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Journal of Electronic Science and Technology 2018年第2期16卷 123-128页

作者： Jiin-Chiou Cheng Wen-chung Kuo Bo-Rong su Department of Computer Science and Information Engineering Southern Taiwan University of Science and TechnologyTainan City 710 Department of Computer Science and Information Engineering National Yunlin University of Science and TechnologyYunlin 64002

Division arithmetic and generalized exploiting modification direction （DA-GEMD） method has perfect efficiency in data-hiding. However, there exist some weaknesses in DA-GEMD. Because the benchmarks are their median of nine pixels in each block of cover-image, it will give a hint for the attacker to hack the stego-image. In the paper, we utilize the sudoku table to randomize the benchmark for each 3×3 block of cover-image. It will mix up the pixels in each image block and prevent the secret information from being extracted. The proposed method still keeps the original efficiency as DA-GEMD while promoting the security for data-hiding.

关键词： Cover-image division arithmetic and generalized exploiting modification direction(DAGEMD) stego-image sudoku

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Thermal pyrolysis conversion of methane to hydrogen(H_(2)):A review on process parameters,reaction kinetics and techno-economic analysis

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Chinese Chemical Letters 2024年第8期35卷 62-73页

作者： Yi Herng Chan Zhe Phak Chan Serene Sow mun Lock chung Loong Yiin Shin Ying Foong Mee Kee Wong Muhammad Anwar Ishak Ven Chian Quek Shengbo Ge su Shiung Lam PETRONAS Research Sdn.Bhd.(PRSB) Kawasan Institusi BangiLot 3288&3289Off Jalan Ayer ItamKajang 43000Malaysia PETRONAS Carbon Capture&Storage(CCS)Enterprise PETRONAS Twin TowersKuala Lumpur City CentreKuala Lumpur 50088Malaysia CO_(2)Research Center(CO2RES) Department of Chemical EngineeringUniversiti Teknologi PETRONASSeri Iskandar 32610Malaysia Department of Chemical Engineering and Energy sustainability Faculty of EngineeringUniversiti Malaysia Sarawak(UNIMAS)Kota Samarahan 94300Malaysia Institute of sustainable and Renewable Energy(IsuRE) Universiti Malaysia Sarawak(UNIMAS)Kota Samarahan 94300Malaysia Higher Institution Centre of Excellence(HICoE) Institute of Tropical Aquaculture and Fisheries(AKUATROP)Universiti Malaysia TerengganuKuala Nerus 21030Malaysia Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037China Center for Global Health Research(CGHR) Saveetha Medical CollegeSaveetha Institute of Medical and Technical Sciences(SIMATS)Saveetha UniversityChennai 602105India

Hydrogen(H_(2))is a promising renewable energy which finds wide applications as the world gears toward low-carbon ***,current H_(2) production via steam methane reforming of natural gas or gasification of coal are laden with high CO_(2) ***,methane(CH_(4))pyrolysis has emerged as a potential technology to generate low-carbon H_(2) and solid *** this review,the current state-of-art and recent progress of H_(2) production from CH_(4) pyrolysis are reviewed in *** such as funda-mental mechanism and chemistry involved,effect of process parameters on the conversion efficiency and reaction kinetics for various reaction media and catalysts are elucidated and critically ***-ature,among other factors,plays the most critical influence on the methane pyrolysis *** metal/salt could lower the operating temperature of methane pyrolysis tosually operates in the regime of>1000℃.Based on the reaction kinetics,metal-based cata-lysts were more efficient in lowering the activation energy of the reaction to 29.5-88 kJ/mol from that of uncatalyzed reaction(147-420.7 kJ/mol).Besides,the current techno-economic performance of the pro-cess reveals that the levelized cost of H_(2) is directly influenced by the sales price of carbon(by-product)generated,which could offset the overall ***,the main challenges of reactor design for efficient product separation and retrieval,as well as catalyst deactivation/poisoning need to be debottlenecked.

关键词： Pyrolysis Methane Hydrogen Reaction kinetics Techno-economic analysis

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An analytical study on the second-order resonance system of tide in an ideal partially-enclosed bay

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Acta Oceanologica Sinica 2005年第5期24卷 1-13页

作者： WONG Lai Ah DONG Lixian CHEN Jay chung su Jilan Mechanical Engineering School Jilin University Changchun 130025 China Environmental Central Facility Institute for the Environment Hong Kong University of Science and Technology Hong Kong 9990777 China Shenzhen Key Laboratory for Coastal and Atmospheric Research Shenzhen 518057 China Key Laboratory of Ocean Dynamic Processes and Satellite Oceanography State Oceanic Administration Hangzhou 310012 China Second Institute of Oceanography State Oceanic Administration Hangzhou 310012 China

In the numerical studies of a real tide M4 resonance system, the Xiangshan Port which is a partially-closed bay, Dong et al. [1999. Acta Oceanologica Sinica, 21 （3）： 1-6] found the interesting phenomenon that the advection plays an important role in inhibiting the growth of the amplitude of the tidal second-order resonance response （M4）. This result is contrary to the general traditional ideas for a non-resonance system. How this phenomenon is interpreted and what internal mechanism is behind the phenomenon are the main focuses of this study. The followings are examined：（1） the dynamic features of a second-order resonance system of tide; （2） the dominating factors on the second-order resonance responses; （3） the effects of both the friction and the advection on the second-order resonance responses; and （4） their roles in dominating the second-order resonance response and internal mechanisms by using the analytical methods. The respective results show that：（1） Both the bottom friction and the advection play significant roles in dominating the magnitude of the amplitude of the second-order resonance responses; （2） the effect of the friction on the second-order resonance response depends on the distribution ratio of the work-done of the system to friction force exhausted into between the damping of the first-order system and the inner excitation of the second-order system; （3） the advection plays a positive role in increasing the amplitude of the second-order non-resonance response in the second order non-resonance of tide; （4） in a second-order resonance system of tide, the effect of the advection may be either to increase or to decrease the amplitudes of the second-order resonance responses of tide, which depends on the distribution ratio mentioned above.

关键词： tide second-order resonance advection

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