• Title/Summary/Keyword: Liu Kang

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Analysis of ICU Treatment on Resection of Giant Tumors in the Mediastinum of the Thoracic Cavity

  • Kang, Nai-Min;Xiao, Ning;Sun, Xiao-Jun;Han, Yi;Luo, Bao-Jian;Liu, Zhi-Dong
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.6
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    • pp.3843-3846
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    • 2013
  • Objective: The purpose of this study was to assess prognosis after resection of giant tumors (including lobectomy or pneumonectomy) in the mediastinum. Materials and Methods: Patients with resection of a giant tumor in the mediastinum of the thoracic cavity received ICU treatment including dynamic monitoring of vital signs, arterial blood pressure and CVP detection, determination of hemorrhage, pulmonary function and blood gas assay, treatment of relevant complications, examination and treatment with fiber optic bronchoscopy, transfusion and hemostasis as well as postoperative removal of ventilators by invasive and non-invasive sequential mechanical ventilation technologies. Results: Six patients were rehabilitated successfully after ICU treatment with controlled postoperative errhysis and pulmonary infection by examination and treatment with fiber optic bronchoscopy without second application of ventilators and tubes after sequential mechanical ventilation technology. One patient died from multiple organ failure under ICU treatment due to postoperative active hemorrhage after second operative hemostasis. Conclusions: During peri-operative period of resection of giant tumor (including lobectomy or pneumonectomy) in mediastinum ofthe thoracic cavity, the ICU plays an important role in dynamic monitoring of vital signs, treatment of postoperative stress state, postoperative hemostasis and successful removal of ventilators after sequential mechanical ventilation.

Numerical Analysis of Heat Transfer and Flow Characteristics on Squealer Tip of Gas Turbine Blade (가스터빈 블레이드 팁의 열전달과 유동 특성에 대한 수치적 해석)

  • Jiao, Liu;Kang, Youngseok;Kim, Donghwa;Cho, Jinsoo
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.44 no.12
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    • pp.1062-1070
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    • 2016
  • The heat transfer and flow characteristics of gas turbine blade tip were investigated in this paper by using the conjugate heat transfer analysis. The rotor inlet boundary condition profile which was taken from the first stage nozzle outlet was used to analyse. The profile contained the velocity and temperature information. This study presents the influence of tip clearance about aerodynamic loss, heat transfer coefficient and film cooling effectiveness with the squealer tip designed blade model which tip clearance variation range from 1% to 2.5% of span. Results showed that the aerodynamic loss and the heat transfer coefficient were increased when the tip clearance was increased. Especially when the tip clearance was 2% of the span, the average heat transfer coefficient on the tip region was increased obviously. The film cooling effectiveness of tip region was increasing with decreasing of the tip clearance. There was high film cooling effectiveness at cavity and near tip hole region.

Effects of alfalfa flavonoids extract on the microbial flora of dairy cow rumen

  • Zhan, Jinshun;Liu, Mingmei;Wu, Caixia;Su, Xiaoshuang;Zhan, Kang;Zhao, Guo qi
    • Asian-Australasian Journal of Animal Sciences
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    • v.30 no.9
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    • pp.1261-1269
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    • 2017
  • Objective: The effect of flavonoids from alfalfa on the microbial flora was determined using molecular techniques of 16S ribosome deoxyribonucleic acid (rDNA) analysis. Methods: Four primiparous Holstein heifers fitted with ruminal cannulas were used in a $4{\times}4$ Latin square design and fed a total mixed ration to which alfalfa flavonoids extract (AFE) was added at the rates of 0 (A, control), 20 (B), 60 (C), or 100 (D) mg per kg of heifer BW. Results: The number of operational taxonomic units in heifers given higher levels of flavonoid extract (C and D) was higher than for the two other treatments. The Shannon, Ace, and Chao indices for treatment C were significantly higher than for the other treatments (p<0.05). The number of phyla and genera increased linearly with increasing dietary supplementation of AFE (p<0.05). The principal co-ordinates analysis plot showed substantial differences in the microbial flora for the four treatments. The microbial flora in treatment A was similar to that in B, C, and D were similar by the weighted analysis. The richness of Tenericutes at the phylum level tended to increase with increasing AFE (p = 0.10). The proportion of Euryarchaeota at the phylum level increased linearly, whereas the proportion of Fusobacteria decreased linearly with increasing AFE supplementation (p = 0.04). The percentage of Mogibacterium, Pyramidobacter, and Asteroleplasma at the genus level decreased linearly with increasing AFE (p<0.05). The abundance of Spirochaeta, Succinivibrio, and Suttonella at the genus level tended to decrease linearly with increasing AFE (0.05

Literature Study on Jaundice of Kum-Won Sa Dae Ga (금원사대가(金元四大家)의 황달(黃疸)에 대한 문헌적 고찰)

  • Song, Jeong-Ho;Kim, Soo-Sung;Kim, Byung-Min;Na, Min-Soo;Liu, Chiian-Hai;Yoon, Hyuk;Jeong, Heon-Young;Kim, Kang-San
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.6
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    • pp.1331-1346
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    • 2008
  • The aim of this study was to establish opinions of Kum Won Sa dea ga on jaundice and find out clinical significance. Contents dealing with jaundice were searched manually in works of Kum Won Sa dea ga. Those were translated into Korean and studied. Yoo wan so(劉完素) had opinion that jaundice is induced by dampness with heatness(濕熱) or dryness with heatness(濕熱) and should be treated with diuretics and laxatives. Jang jong jung(張從政) had opinion that jaundice is induced by spleen(脾) mainly and should be treated with diaphoretics, emetics, laxatives. Lee dong won(李東垣) had opinion that jaundice is induced by mistaken diaphoretics, dysfunction of spleen(脾), heatness(熱) and treatments should depend on six meridian pathways(六經). Ju jin hyeong(朱震亨) had opinion that jaundice is induced by dampness with heatness(濕熱) and coldness with dampness(濕熱) and should be treated with diuretics and detoxicant. Kum Won Sa dae ga thought jaundice in induced by dampness with heatness(濕熱) and explained pathology by the five viscera and the six entrails(五臟六腑). And they treated patients with jaundice according to etiologic source.

Effects of Shopping Value, Positive Emotion and Urge to Buy Impulsively on E-impulse Buying for Apparel Products (쇼핑가치, 긍정적 감정 및 구매압박감이 의류제품의 e-충동구매에 미치는 영향)

  • Kang, Eun-Mi;Liu, Jing;Park, Eun-Joo
    • Journal of the Korean Society of Clothing and Textiles
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    • v.38 no.1
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    • pp.87-96
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    • 2014
  • E-shopping is traditional method to purchase products in a modern society. Fashion products are one of the most popular product categories sold and impulsively bought online. This study examined the causal relationship of shopping value, positive emotion, urge to buy impulsively, and e-impulse buying in the context of shopping for apparel products. A self-administered questionnaire developed from the literature was administered in class to 501 female college students in Busan. AMOS 21.0 estimated the structural equation model of e-impulse buying using a correlation matrix with a maximum likelihood. The analysis of the data supported most of the predictions. The results suggested that consumer shopping values (hedonic shopping value and utilitarian shopping value) had a positive effect on positive emotion; in addition, positive emotion urge to buy impulsively directly affected the e-impulse buying of apparel products. In the structural model, e-impulse buying of consumers can be predicted by the attitudinal component (e.g., shopping values), emotional factors (e.g., enthusiastic or proud), and the urge to buy impulsively felt by young consumers. There are implications that both positive emotion and impulsive buying are important predictors for the e-impulse buying of apparel products by consumers. Moreover, the urge to buy impulsively was an important mediator to determine the e-impulse buying of apparel products. This study provides insight to retailers and researchers to understand the structural relationship of consumer characteristics and the e-impulse buying of apparel products.

Optimum Feeding Rates in Juvenile Olive Flounder Paralichthys olivaceus Fed Practical Expanded Pellet at Low and High Water Temperatures (저수온기 및 고수온기에 있어서 배합사료를 공급한 넙치(Paralichthys olivaceus) 치어의 적정 공급율)

  • Kim, Kang-Woong;Hwang, Nam-Yong;Son, Maeng-Hyun;Kim, Kyoung-Duck;Lee, Jun-Ho;Yi, Liu;Yun, Yong-Hyun;Park, Gun-Hyun;Kim, Sung-Sam;Lee, Kyung-Jun;Bai, Sung-Chul C.
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.44 no.4
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    • pp.345-351
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    • 2011
  • Two feeding trials were conducted to investigate the optimum feeding rates in juvenile olive founder Paralichthys olivaceus fed practical expanded pellet(EP) containing 58.1% crude protein, 10.7% crude lipid, and 10.8% ash at low and high water temperatures. In the first experiment, triplicate groups of 15 fish with average weight of 7.7 g were fed at one of seven feeding rates(0, 1, 1.5, 2, 2.25, or 2.5% of body weight/day or to satiation) for 4 weeks at low water temperature. In the second experiment, quadruplicate groups of 20 fish with average weight of 5.5 g were fed at one of eight feeding rates(0, 3, 3.5, 4, 4.25, 4.5, or 4.75% of body weight/day or to satiation) for 4 weeks at high water temperature. Based on growth performance, we estimated that the optimum feeding rates for juvenile olive flounder were 1.97-2.51% and 4.82-6.36% of body weight/day at low and high water temperatures, respectively.

Properties of a Fibrinolytic Enzyme Secreted by Bacillus amyloliquefaciens RSB34, Isolated from Doenjang

  • Yao, Zhuang;Liu, Xiaoming;Shim, Jae Min;Lee, Kang Wook;Kim, Hyun-Jin;Kim, Jeong Hwan
    • Journal of Microbiology and Biotechnology
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    • v.27 no.1
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    • pp.9-18
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    • 2017
  • Nine bacilli with fibrinolytic activities were isolated from doenjang, a traditional Korean fermented soy food. Among them, RSB34 showed the strongest activity and was identified as Bacillus amyloliquefaciens by 16S rRNA and recA gene sequencing. During growth on LB up to 96 h, RSB34 showed the highest fibrinolytic activity ($83.23mU/{\mu}l$) at 48 h. Three bands of 23, 27, and 42 kDa in size were observed when the culture supernatant was analyzed by SDS-PAGE and 27 and 42 kDa bands by fibrin zymography. The gene encoding the 27 kDa fibrinolytic enzyme AprE34 was cloned by PCR. BLAST analyses confirmed that the gene was a homolog to genes encoding AprE-type proteases. aprE34 was overexpressed in Escherichia coli BL21(DE3) using pET26b(+). Recombinant AprE34 was purified and examined for its properties. The $K_m$ and $V_{max}$ values of recombinant AprE34 were $0.131{\pm}0.026mM$ and $16.551{\pm}0.316{\mu}M/l/min$, respectively, when measured using an artificial substrate, N-succinyl-ala-ala-pro-phe-p-nitroanilide. aprE34 was overexpressed in B. subtilis WB600 using pHY300PLK. B. subtilis transformants harboring pHYRSB34 (pHY300PLK with aprE34) showed higher fibrinolytic activity than B. amyloliquefaciens RSB34.

Long-term Efficacy of Microwave Hyperthermia Combined with Chemoradiotherapy in Treatment of Nasopharyngeal Carcinoma with Cervical Lymph Node Metastases

  • Kang, Min;Liu, Wen-Qi;Qin, Yu-Tao;Wei, Zhu-Xin;Wang, Ren-Sheng
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.12
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    • pp.7395-7400
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    • 2013
  • Objective: The long-term efficacy of microwave hyperthermia combined with chemoradiotherapy in treating nasopharyngeal carcinoma (NPC) with metastatic foci in cervical lymph nodes was evaluated. Methods: A total of 154 cases of N2 or N3 stage NPC were randomized into two groups: hyperthermia group (76 cases) and control group (78 cases). Both received cisplatin chemotherapy and radiotherapy. In addition, the hyperthermia group further received microwave hyperthermia to the metastatic cervical nodes with different patterns (before or after radiotherapy), heating temperatures (T90< $43^{\circ}C$ and $T90{\geq}43^{\circ}C$) and hyperthermia episodes (< 4 times, 4-10 times and > 10 times). Results: The 3-month and 5-year complete response (CR) rates of cervical lymph nodes in the hyperthermia group were significantly higher than those in the control group. The 5-year disease-free survival (DFS) rate and the 3-year / 5-year overall survival rate in the hyperthermia group were also significantly higher. There was no significant difference in 5-year metastatic rates. In the hyperthermia group, the 3-month and 5-year CR rates of T90< $43^{\circ}C$ treatment were significantly lower than with $T90{\geq}43^{\circ}C$ treatment. The CR rate was highest when the hyperthermia was performed 4-10 times. There were no significant differences in 3-month and 5-year CR rates between hyperthermia before or after radiotherapy treatment. Conclusion: Microwave hyperthermia combined with chemoradiotherapy can increase local control, DFS and 3, 5-year overall survival rates of patients with N2 ~ N3 stage NPC. The heating temperature should be over $43^{\circ}C$ with hyperthermia repeated 4-10 times.

Properties of Antimicrobial Substances Produced by Bacillus species Isolated from Rice Straw (볏짚에서 분리한 Bacillus 균주들이 분비하는 항균물질들의 특성들)

  • Liu, Xiaoming;Yao, Zhuang;Shim, Jae Min;Lee, Kang Wook;Kim, Hyun-Jin;Kim, Jeong Hwan
    • Microbiology and Biotechnology Letters
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    • v.45 no.2
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    • pp.133-142
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    • 2017
  • Two hundred bacilli were isolated from rice straw, and 3 strains showing strong inhibitory activities against Bacillus cereus ATCC14579 were selected for further analyses. RSC15 was identified as B. licheniforms, and RSC26 and RSC42 were identified as B. amyloliquefaciens by molecular identification methods. The inhibitory activities were heat stable, and half of the activity was retained for 20 min at $100^{\circ}C$. SDS-PAGE analyses of the culture supernatant indicated that 2 different kinds of antibacterial substances were present with sizes below 3.5 kDa. Antibacterial substances produced by B. licheniformis RSC15 were partially purified by column chromatography, and the specific activity increased from 955.0 AU/mg to 6,400 AU/mg.

Protocol for Systematic Review of Controlled Trials of Korean and Chinese Herbal Treatments for Stroke

  • Lee, Ju-Ah;Choi, Tae-Young;Lee, Myeong Soo;Ko, Mimi;Kang, Byoung-Kab;Liu, Huan;Jiang, Jun-Jie;Li, Yuan-Yuan
    • Journal of Acupuncture Research
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    • v.34 no.4
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    • pp.169-171
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    • 2017
  • Background: Many stroke patients receive traditional medical care in Korea and China. Stroke patients comprise the largest proportion of inpatients in traditional Korean medicine and traditional Chinese medicine hospitals. The purpose of this study is to identify the types and effects of Chinese medicine widely used in China and Korea, and to apply them to future studies of stroke. Methods: Nine Korean and Chinese databases will be surveyed for clinical studies of herbal medicines for stroke, published between the inception of the database and August 2017. Clinical studies of decoctions or modified decoctions will be included without restriction on study type. The frequencies and patterns of formulas or single herb usage and the any type of herbal medicine utilization will be analyzed. Dissemination: The results of the systematic review will be published in a peer-reviewed journal and disseminated electronically and in print. Updates of the review will be conducted to inform and guide healthcare practices.