检索结果-南通市图书馆

Earthquake Engineering and Engineering Vibration 2022年第1期21卷 37-51页

作者： Kil-Wan Ko Jeong-Gon Ha dong-soo kim Department of Civil and Environmental Engineering UC BerkeleyCalifornia 94720USA Advanced Structures and Seismic Safety Research Division Daejeon 34057Korea Department of Civil and Environmental Engineering KAISTDaejeon 34141Korea

The challenge in the practical application of rocking foundations is the estimation of its performance,particularly the rotation angle,during a strong *** this study,the dynamic rocking behavior for a shallow foundation considering structural response was evaluated through two analytical approaches:the conventional soil-foundation-structure interaction(SFSI)governing equation of a single-degree-of-freedom(SDOF)structure on a rocking shallow foundation,and the Housner rocking model(i.e.,a rocking rigid block on a rigid base).Both approaches were validated with dynamic centrifuge *** test models consisted of a soft soil deposit,a shallow rectangular foundation,and an SDOF structure dominated by a bending behavior.A total of 11 foundation-structure systems and six seismic waves,including recorded earthquake signals and sinusoidal waves,were *** results showed that the conventional SFSI equation well predicted the maximum rotation during strong ***,this method was less accurate regarding the rotational phase information and maximum rotation of the foundation during weak *** the other hand,although the modified Housner′s rocking model required five parameters relevant to a soil-foundation-structure system,it overestimated the maximum rotation of the foundation when compared with the results from dynamic centrifuge tests.

关键词： soil-foundation-structure interaction maximum rotation angle rocking foundation Housner rocking model dynamic centrifuge test

Huge encrusted ureteral stent forgotten for over 25 years:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2020年第23期8卷 6043-6047页

作者： dong soo kim Sang Hyub Lee Department of Urology School of MedicineKyung Hee UniversitySeoul 02447South Korea

BACKGROUND Ureteral stent insertion is a relatively non-invasive procedure commonly used in the field of urology to resolve urinary ***,they are sometimes forgotten and the risk of complications increases with *** SUMMARY A 43-year-old woman with a history of recurrent urinary tract infections visited our hospital for evaluation of persistent left flank pain,and lower urinary tract symptoms despite anti-biotic *** had received urological surgery in her teens but did not know the details of her ***,ureter,and bladder X-ray and abdominopelvic computed tomography revealed a forgotten left ureteral stent with huge encrustation at both ends and a severely dilated left kidney with parenchymal *** order to remove the ureteral stent,a laparoscopic nephroureterectomy was *** ureteral stent was successfully removed,and she was discharged after *** patient was followed up for two years after surgery and did not show any signs of long-term *** Long indwelling stents can cause dire complications requiring radical *** registry systems,novel stent material development,and proper patient education is important for complication prevention.

关键词： Ureter Stent Calcification Endoscopy Nephroureterectomy Complications Case report

A taxonomic framework for autonomous service management in Service-Oriented Architecture

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science C(Computers and Electronics) 2012年第5期13卷 339-354页

作者： Du Wan CHEUN Hyun Jung LA soo dong kim Department of Computer Science Soongsil University

Since Service-Oriented Architecture (SOA) reveals the black box nature of services,heterogeneity,service dynamism,and service evolvability,managing services is known to be a challenging *** computing (AC) is a way of designing systems that can manage themselves without direct human ***,applying the key disciplines of AC to service management is appealing.A key task of service management is to identify probable causes for symptoms detected and to devise actuation methods that can remedy the *** SOA,there are a number of target elements for service remedies,and there can be a number of causes associated with each target ***,there is not yet a comprehensive taxonomy of causes that is widely *** lack of cause taxonomy results in the limited possibility of remedying the problems in an autonomic *** this paper,we first present a meta-model,extract all target elements for service fault management,and present a computing model for autonomously managing service *** we define fault taxonomy for each target element and inter-relationships among the ***,we show prototype implementation using cause taxonomy and conduct experiments with the prototype for validating its applicability and effectiveness.

关键词： Service-Oriented Architecture (SOA) Autonomic computing (AC) Cause taxonomy Services Faults Causes Adaptation

Tunnel flexibility effect on the ground surface acceleration response

在线全文

学校读者我要写书评

暂无评论

Earthquake Engineering and Engineering Vibration 2016年第3期15卷 457-476页

作者： Mohammad Hassan Baziar asoud Rabeti Moghadam Yun Wook Choo dong-soo kim Center of Excellence for Fundamental Studies in Structural Engineering School of Civil EngineeringIran University of Science and TechnologyTehranIran School of Civil Engineering Iran University of Science and TechnologyTehran1ran Department of Civil and Environmental Engineering College of EngineeringKongju National UniversityChungnam 330-717Republic of Korea Department of Civil and Environmental Engineering Korea Advanced Institute of Science&TechnologyDaejeon 305-701Republic of Korea

Flexibility of underground structures relative to the surrounding medium, referred to as the flexibility ratio, is an important factor that influences their dynamic interaction. This study investigates the flexibility effect of a box-shaped subway tunnel, resting directly on bedrock, on the ground surface acceleration response using a numerical model verified against dynamic centrifuge test results. A comparison of the ground surface acceleration response for tunnel models with different flexibility ratios revealed that the tunnels with different flexibility ratios influence the acceleration response at the ground surface in different ways. Tunnels with lower flexibility ratios have higher acceleration responses at short periods, whereas tunnels with higher flexibility ratios have higher acceleration responses at longer periods. The effect of the flexibility ratio on ground surface acceleration is more prominent in the high range of frequencies. Furthermore, as the flexibility ratio of the tunnel system increases, the acceleration response moves away from the free field response and shifts towards the longer periods. Therefore, the flexibility ratio of the underground tunnels influences the peak ground acceleration （PGA） at the ground surface, and may need to be considered in the seismic zonation of urban areas.

关键词： box-shaped tunnel flexibility ratio acceleration response ground surface centrifuge modeling numericalsimulation

Evolution of nonmetallic inclusions in 80-t 9CrMoCoB large-scale ingots during electroslag remelting process

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1525-1539页

作者： Shengchao Duan Min Joo Lee Yao Su Wangzhong Mu dong soo kim Joo Hyun Park School of Mechanical and Materials Engineering North China University of TechnologyBeijing 100144China Department of Materials Science and Chemical Engineering Hanyang UniversityAnsan 15588Rep.of Korea Department of Materials Science and Engineering KTH Royal Institute of TechnologyBrinellvägen 23Stockholm 10044Sweden Department of Engineering Science and Mathematics Division of Materials ScienceLuleåUniversity of Technology97187 LuleåSweden Casting&Forging Business Unit Nuclear Business GroupDoosan EnerbilityChangwon 51711Rep.of Korea

In combination with theoretical calculations,experiments were conducted to investigate the evolution behavior of nonmetallic inclusions(NMIs)during the manufacture of large-scale heat-resistant steel ingots using 9CrMoCoB heat-resistant steel and CaF_(2)–CaO–Al_(2)O_(3)–SiO_(2)–B_(2)O_(3)electroslag remelting(ESR)-type slag in an 80-t industrial ESR *** main types of NMI in the consumable electrode comprised pure alumina,a multiphase oxide consisting of an Al_(2)O_(3)core and liquid CaO–Al_(2)O_(3)–SiO_(2)–MnO shell,and M_(23)C_(6)carbides with an MnS *** Al_(2)O_(3)and MnS inclusions had higher precipitation temperatures than the M_(23)C_(6)-type carbide under equilibrium and nonequilibrium solidification ***,inclusions can act as nucleation sites for carbide layer *** ESR process completely removed the liquid CaO–Al_(2)O_(3)–SiO_(2)–MnO oxide and MnS inclusion with a carbide shell,and only the Al_(2)O_(3)inclusions and Al_(2)O_(3)core with a carbide shell occupied the remelted *** M_(23)C_(6)-type carbides in steel were determined as Cr_(23)C_(6)based on the analysis of transmission electron microscopy *** substitution of Cr with W,Fe,or/and Mo in the Cr_(23)C_(6)lattice caused slight changes in the lattice parameter of the Cr_(23)C_(6)***,Cr_(21.34)Fe_(1.66)C_(6),(Cr_(19)W_(4)C_(6),Cr_(18.4)Mo_(4.6)C_(6),and Cr_(16)Fe_(5)Mo_(2)C_(6)can match the fraction pattern of Cr_(23)C_(6)*** Al_(2)O_(3)inclusions in the remelted ingot formed due to the reduction of CaO,SiO_(2),and MnO components in the liquid *** increased Al content in liquid steel or the higher supersaturation degree of Al_(2)O_(3)precipitation in the remelted ingot than that in the electrode can be attributed to the evaporation of CaF_(2)and the increase in CaO content in the ESR-type slag.

关键词： nonmetallic inclusion heat-resistant steel electroslag remelting M_(23)C_(6) carbide MnS inclusion supersaturation degree

Spontaneous rupture of adrenal myelolipoma as a cause of acute flank pain:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2021年第22期9卷 6552-6556页

作者： dong soo kim Jeong Woo Lee Sang Hyub Lee Department of Urology School of MedicineKyung Hee UniversitySeoul 02447South Korea

BACKGROUND Adrenal myelolipoma is a rare,benign,non-functioning mass that occurs in the adrenal *** is composed of an admixture of hematopoietic elements and mature adipose tissue,similar to bone *** at large sizes,adrenal myelolipomas are usually asymptomatic and often incidentally found by ultrasonography or computed tomography(CT)*** paper describes an unusual case of adrenal myelolipoma presenting as flank *** SUMMARY A 50-year-old male with severe right flank pain underwent a CT scan revealing a huge mass extending into the suprarenal *** mass showed a fat component with retroperitoneal *** tumor was treated laparoscopically,and pathologic examination revealed features of myelolipoma originating from the adrenal *** Adrenal myelolipomas are generally asymptomatic and can be treated ***,rupture and hemorrhage of the tumor can cause symptoms requiring surgical removal.

关键词： Adrenal neoplasms Myelolipoma Adrenal glands Case report

Emamectin benzoate 9.7%SL as a new formulation for a trunkinjections against pine wood nematode,Bursaphelenchus xylophilus

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Forestry Research 2020年第4期31卷 1399-1403页

作者： Sung-Chan Lee Hyo-Rim Lee dong-soo kim Jun-Hyeong Kwon Min-Jung Huh Il-Kwon Park Department of Forest Sciences College of Agriculture and Life SciencesSeoul National UniversitySeoul 08826Republic of Korea Research Institute of Agriculture and Life Science College of Agriculture and Life SciencesSeoul National UniversitySeoul 08826Republic of Korea Forest Biomaterials Research Center National Institute of Forest ScienceJinjuGyeongnam 52817Republic of Korea

In this study,we investigated the preventive effects of emamectin benzoate 9.7%SL,which was newly developed to reduce the injection volume and number of injection holes required to protect against pine wood *** of the Pinus thunbergii trees injected with emamectin benzoate 9.7%SL at 0.3 mL/cm diameter at breast height(DBH)died within 2 years of inoculation with pine wood *** benzoate 9.7%SL injected at 0.6 mL/cm DBH resulted in no tree mortality for 3 *** residue of emamectin benzoate 9.7%SL in pine twigs injected with 0.3 mL/cm DBH was 0.490μg/g at 1 year after injection and 0.303μg/g after 2 *** residues values are greater than 0.031μg/g,previously determined IC95 value for emamectin benzoate against the pine wood *** field experiment and residue analysis showed that emamectin benzoate 9.7%SL could be a substitute agent for emamectin benzoate 2.15%EC,which is widely used to prevent pine wood nematode in the field and that injection volume and number of injection holes can be greatly educed using this new formulation,which will reduce injury to the cambium,interruption of water movement,and infection of inoculation wounds by wood-decay or blue stain fungi.

关键词： Emamectin benzoate 9.7%SL Emamectin benzoate 2.15%EC Trunk injection Pine wood nematode Residue

Long-term survival after gastrectomy and metastasectomy for gastric cancer with synchronous bone metastasis

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2018年第1期24卷 150-156页

作者： Young Jin Choi Dae Hoon kim Hye Suk Han Joung-Ho Han Seung-Myoung Son dong soo kim Hyo Yung Yun Department of Surgery Chungbuk National University Hospital Chungbuk National University College of Medicine Department of Internal Medicine Chungbuk National University Hospital Chungbuk National University College of Medicine Department of Pathology Chungbuk National University Hospital Chungbuk National University College of Medicine Department of Orthopedics Chungbuk National University Hospital Chungbuk National University College of Medicine

Bone metastasis is a rare event in patients with gastric cancer, but pathologic fracture, paralysis, pain and hematological disorders associated with the bone metastasis may influence the quality of life. We report herein the case of a 53-year-old man who presented with primary remnant gastric cancer with bone metastasis. The patient requested further investigations after detection of a metastatic lesion in the 2 nd lumbar vertebra during evaluation for back pain that had persisted for 3 mo. No other metastatic lesions were detected. He underwent total gastrectomy and palliative metastasectomy to aid in reduction of symptoms, and he received combination chemotherapy with tegafur(S-1) and cisplatin. The patient survived for about 60 mo after surgery. Currently, there is no treatment guideline for gastric cancer with bone metastasis, and we believe that gastrectomy plus metastasectomy may be an effective therapeutic option for improving qualityof life and survival in patients with resectable primary gastric cancer and bone metastasis.

关键词： Stomach neoplasms Gastrectomy Bone neoplasms Neoplasm metastasis Metastasectomy

Potential of Natural Killer Cell Enriched Conditioned Media for Skin Care and Anti-Aging

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Cosmetics, Dermatological Sciences and Applications 2021年第2期11卷 123-139页

作者： dong soo kim dong Ju kim Hyun Pyo kim Sung Hwan Hwang Jung Hwa Kang Research & Development IMMUNISBIO CO. Ltd. B2 International ST. Mary’s Hospital MTP Mall Seo-gu Incheon Korea

Natural killer (NK) cell is a type of immune cell and is known to be particularly responsible for innate immunity such as anti-cancer immunity, defense mechanisms against infections, and secretion of various cytokines and chemokines for increasing recruitment of other immune cells. In this study, we investigated the potentials of NK-enriched lymphocytes (NKEL) conditioned media (CM) on skin care for cosmeceutical compositions. Various cytokines of NKEL CM can improve wound healing through epithelial-mesenchymal transition (EMT) by increasing KLKs (kallikreins) and reduce metalloproteinase (MMP)-1 and MMP-2 to inhibit wrinkle formation. Our results suggest that NKEL CM which has various cytokines promotes up-regulation of cell migration and KLKs and down-regulation of MMP-1 and MMP-2 by stimulating HaCaT keratinocytes migration. Therefore, NKEL CM can be used as a cosmetic composition that can play a role in skin regeneration and anti-aging.

关键词： Natural Killer Cell NKEL Skin Care Wound Healing Anti-Aging KLKs MMPs EMT Conditioned Media

Benidipine has effects similar to losartan on the central blood pressure and arterial stiffness in mild to moderate essential hypertension

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Medical Journal 2013年第11期126卷 2021-2028页

作者： Sang-Hyun Ihm Hui-Kyung Jeon Shung Chull Chae Do-Sun Lim Kee-Sik kim dong-Ju Choi Jong-Won Ha dong-soo kim Kye Hun kim Myeong-Chan Cho Sang Hong Baek Division of Cardiology College of Medicine The Catholic University of Korea Seoul Republic of Korea Jeon HK and Baek SH) Department of Internal Medicine Kyungpook National University Hospital Daegu Republic of Korea Division of Cardiology Korea University Anam Hospital SeoulRepublic of Korea Division of Cardioiogy Daegu Catholic University Medical Center Daegu Republic of Korea Division of Cardiology Seoul National University Bundang Hospital Seongnam Republic of Korea Cardiology Division Yonsei Cardiovascular Center Yonsei University College of Medicine Seoul Republic of Korea Division of Cardiology Inje University College of Medicine Busan Paik Hospital Busan Republic of Korea Heart Research Center of Chonnam National University Hospital Gwangju Republic of Korea Department of Internal Medicine Chungbuk National University Hosoital. Cheon~iu. Republic of Korea

Background Central blood pressure （BP） is pathophysiologically more important than peripheral BP for the pathogenesis of cardiovascular disease. Arterial stiffness is also a good predictor of cardiovascular morbidity and mortality. The effects of benidipine, a unique dual L-IT-type calcium channel blocker, on central BP have not been reported. This study aimed to compare the effect of benidipine and Iosartan on the central BP and arterial stiffness in mild to moderate essential hypertensives. Methods This 24 weeks, multi-center, open label, randomized, active drug comparative, parallel group study was designed as a non-inferiority study. The eligible patients （n=200） were randomly assigned to receive benidipine （n=101） or Iosartan （n=99）. Radial artery applanation tonometry and pulse wave analysis were used to measure the central BP, pulse wave velocity （PWV） and augmentation index （AIx）. We also measured the metabolic and inflammatory markers. Results After 24 weeks, the central BP decreased significantly from baseline by （16.8±14.0/10.5±9.2） mmHg （1 mmHg =0.133 kPa）（systolic/diastolic BP; P 〈0.001） in benidipine group and （18.9±14.7/12.1±10.2） mmHg （P 〈0.001） in Iosartan group respectively. Both benidipine and Iosartan groups significantly lowered peripheral BP （P 〈0.001） and AIx （P 〈0.05）, but there were no significant differences between the two groups. The mean aortic, brachial and femoral PWV did not change in both groups after 24-week treatment. There were no significant changes of the blood metabolic and inflammatory biomarkers in each group. Conclusion Benidipine is as effective as Iosartan in lowering the central and peripheral BP, and improving arterial stiffness.

关键词： calcium channel blocker central blood pressure hypertension arteries stiffness