• Title/Summary/Keyword: TPL

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Air Temperature Differences in Areas with High-rise Buildings (초고층빌딩지역의 기온차)

  • Jin, Wen-Cheng;Lee, Kyoo-Seock
    • Journal of the Korean Institute of Landscape Architecture
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    • v.40 no.1
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    • pp.12-22
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    • 2012
  • In Seoul, skyscrapers are built in commercial zones known as residential-commercial complexes, which cause such environmental problems as urban heat islands(UHI) and air pollution. To investigate air temperature differences in areas near skyscrapers at Gangnam-gu, Seoul, South Korea, fixed air temperature observation and traverse observations were performed from March 16, 2008 to March 15, 2009. The annual mean air temperature at Tower Palace(TPL) was higher than that at Sookmyung Girls' High School(SMG) by $0.7^{\circ}C$, although the distance between the two observation positions is only 200m. The number of tropical nights at TPL was 13, while that at SMG was 5. The higher air temperature at TPL was due to a significantly lower sky view factor(SVF), which prevented long-wave radiation from emitting into the sky. The highest air temperature increases near TPL occurred on summer nights because of the high-electricity consumption value of $70.22Wh/m^2$ for the TPL block in August due to air conditioning for cooling. It is concluded that the warm air pocket centered on TPL.

The Third-Party Logistics Provider's Preference on Home Delivery Company (제3자물류업체의 택배사 선호에 관한 연구)

  • Park, Sang-June;Lee, Seung-Soo
    • Journal of the Korean Operations Research and Management Science Society
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    • v.34 no.1
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    • pp.123-132
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    • 2009
  • Third Party Logistics (TPL) providers offer outsourced logistics services to companies for part or sometimes all of their supply chain management. Although TPL market is increasing rapidly and drawing much attention from various aspects, it is not easy to find the researches dealing with relations between TPL providers and home delivery companies dealing with small-sized cargo. This study focused on service dimensions which TPL providers consider when they choose a home delivery company. In this paper, we found five factors of service dimensions including delivery charge, logistics management shills, partnership, and then investigated which dimensions affect TPL providers' preference. In addition, we showed that the logistics management skills are more important than the delivery charge which has commonly been considered the most important factor. This study offers managerial insights on TPL providers' prefer once which we can hardly find in theoretical and practical perspective.

Enhanced Stability of Tyrosine Phenol-Lyase from Symbiobacterium toebii by DNA Shuffling

  • Kim, Jin-Ho;Song, Jae-Jun;Kim, Bong-Gyun;Sung, Moon-Hee;Lee, Sang-Chul
    • Journal of Microbiology and Biotechnology
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    • v.14 no.1
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    • pp.153-157
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    • 2004
  • Tyrosine phenol-lyase (TPL) is a useful enzyme for the synthesis of pharmaceutical aromatic amino acids. In the current study, sequential DNA shuffling and screening were used to enhance the stability of TPL. Twenty-thousand mutants were screened, and several improved variants were isolated. One variant named A13V, in which the $13^{th}$ amino acid alanine was substituted by valine, exhibited a higher temperature and denaturant stability than the wild-type TPL. The purified mutant TPL, A13V, retained about 60% of its activity at $76^\circ{C}$, whereas the activity of the wild-type TPL decreased to less than 20% at the same temperature. Plus, A13V exhibited about 50% activity with 3 M urea, while the wild-type TPL lost almost all its catalytic activity, indicating an increased denaturant tolerance in the mutant A13V. It is speculated that the substitution of Val for the Ala in the $\beta$-strand of the N-terminal arm was responsible for the heightened stabilization, and that the current results will contribute to further research on the structural stability of TPL.

Comprehensive Performance Analysis of Interconnect Variation by Double and Triple Patterning Lithography Processes

  • Kim, Youngmin;Lee, Jaemin;Ryu, Myunghwan
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.14 no.6
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    • pp.824-831
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    • 2014
  • In this study, structural variations and overlay errors caused by multiple patterning lithography techniques to print narrow parallel metal interconnects are investigated. Resistance and capacitance parasitic of the six lines of parallel interconnects printed by double patterning lithography (DPL) and triple patterning lithography (TPL) are extracted from a field solver. Wide parameter variations both in DPL and TPL processes are analyzed to determine the impact on signal propagation. Simulations of 10% parameter variations in metal lines show delay variations up to 20% and 30% in DPL and TPL, respectively. Monte Carlo statistical analysis shows that the TPL process results in 21% larger standard variation in delay than the DPL process. Crosstalk simulations are conducted to analyze the dependency on the conditions of the neighboring wires. As expected, opposite signal transitions in the neighboring wires significantly degrade the speed of signal propagation, and the impact becomes larger in the C-worst metals patterned by the TPL process compared to those patterned by the DPL process. As a result, both DPL and TPL result in large variations in parasitic and delay. Therefore, an accurate understanding of variations in the interconnect parameters by multiple patterning lithography and adding proper margins in the circuit designs is necessary.

Changes of Antioxidant Activity and the Isoflavone and Free Amino Acid Content of Fermented Tofu with Kimchi Ingredients and Lactic Acid Bacteria (김치양념과 유산균을 이용한 발효두부의 항산화 활성, 이소플라본 및 유리아미노산의 변화)

  • Kang, Kyoung-Myoung;Lee, Shin-Ho
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.42 no.1
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    • pp.96-101
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    • 2013
  • This study was carried out to investigate the changes in antioxidant activity, and the isoflavone and free amino acid content in fermented tofu of the ingredients of kimchi (red pepper, garlic, ginger, and anchovies) and lactic acid bacteria (Pediococcus acidilactici KL-6) during 24 weeks of fermentation at $20^{\circ}C$. The total polyphenol content of various types of fermented tofu such as the control (tofu with kimchi ingredients mixture), tofu and kimchi ingredients with lactic acid bacteria (TL), and tofu in pre-fermented kimchi ingredients with lactic acid bacteria (TPL) ranged from 156.34 to 165.17 mg/g, showing that TPL was significantly higher in terms of fermentation time (6 weeks) compared to others. The DPPH free radical scavenging activity of TPL (84.11%) was higher than that of the control (76.68%) and TL (78.95%) after 12 weeks fermentation at $20^{\circ}C$. The changes of nitrite scavenging activity and SOD-like activity in the tested tofu showed the same tendency as the DPPH free radical scavenging activity during 14 weeks fermentation TPL showed statistically significant levels of increased antioxidant activity, so we compared the isoflavone and free amino acid content. The isoflavone and free amino acid content of TPL was 2.34 mg/g and 20.81 mg/g after 14 weeks fermentation, respectively.

Triptolide improves myocardial fibrosis in rats through inhibition of nuclear factor kappa B and NLR family pyrin domain containing 3 inflammasome pathway

  • Shen, Jianyao;Ma, Hailiang;Wang, Chaoquan
    • The Korean Journal of Physiology and Pharmacology
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    • v.25 no.6
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    • pp.533-543
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    • 2021
  • Myocardial fibrosis (MF) is the result of persistent and repeated aggravation of myocardial ischemia and hypoxia, leading to the gradual development of heart failure of chronic ischemic heart disease. Triptolide (TPL) is identified to be involved in the treatment for MF. This study aims to explore the mechanism of TPL in the treatment of MF. The MF rat model was established, subcutaneously injected with isoproterenol and treated by subcutaneous injection of TPL. The cardiac function of each group was evaluated, including LVEF, LVFS, LVES, and LVED. The expressions of ANP, BNP, inflammatory related factors (IL-1β, IL-18, TNF-α, MCP-1, VCAM1), NLRP3 inflammasome factors (NLRP3, ASC) and fibrosis related factors (TGF-β1, COL1, and COL3) in rats were dete cted. H&E staining and Masson staining were used to observe myocardial cell inflammation and fibrosis of rats. Western blot was used to detect the p-P65 and t-P65 levels in nucleoprotein of rat myocardial tissues. LVED and LVES of MF group were significantly upregulated, LVEF and LVFS were significantly downregulated, while TPL treatment reversed these trends; TPL treatment downregulated the tissue injury and improved the pathological damage of MF rats. TPL treatment downregulated the levels of inflammatory factors and fibrosis factors, and inhibited the activation of NLRP3 inflammasome. Activation of NLRP3 inflammasome or NF-κB pathway reversed the effect of TPL on MF. Collectively, TPL inhibited the activation of NLRP3 inflammasome by inhibiting NF-κB pathway, and improved MF in MF rats.

Phylogenetic Diversity and Antifungal Activity of Endophytic Fungi Associated with Tephrosia purpurea

  • Luo, Ze-Ping;Lin, Hai-Yan;Ding, Wen-Bing;He, Hua-Liang;Li, You-Zhi
    • Mycobiology
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    • v.43 no.4
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    • pp.435-443
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    • 2015
  • Sixty-one endophytic fungus strains with different colony morphologies were isolated from the leaves, stems and roots of Tephrosia purpurea with colonization rates of 66.95%, 37.50%, and 26.92%, respectively. Based on internal transcribed spacer sequence analysis, 61 isolates were classified into 16 genera belonging to 3 classes under the phylum Ascomycota. Of the 61 isolates, 6 (9.84%) exhibited antifungal activity against one or more indicator plant pathogenic fungi according to the dual culture test. Isolate TPL25 had the broadest antifungal spectrum of activity, and isolate TPL35 was active against 5 plant pathogenic fungi. Furthermore, culture filtrates of TPL25 and TPL35 exhibited greater than 80% growth inhibition against Sclerotinia sclerotiorum. We conclude that the endophytic fungal strains TPL25 and TPL35 are promising sources of bioactive compounds.

A Study on the Total Logistics Information System of the Third-party Logistics for Promotion of Customer Satisfaction (고객만족도 증진을 위한 제3자 물류의 통합물류정보시스템에 관한 연구)

  • 김용태;안동규;유왕진
    • Journal of the Korea Society of Computer and Information
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    • v.7 no.1
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    • pp.137-146
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    • 2002
  • The benefit of TPL(Third-party Logistics) is reduction of transportation time, accuracy, improved expertise knowledge and access to logistics information system, improved operational efficiency, improved customer service, ability to focus in core business and greater flexibility. On the contrary, the defect of TPL is loss of control, unreliable promise of the enterprise (provider),inability to respond to logistics system requirement, lack of understanding of the user business goals . This thesis aims to suggest the optimal strategic to improve the logistics system and to satisfy the customer needs and also aims to suggest the TPL method to strengthen the TPL companies. And strategic plan Total (enterprise-TPL-customer) Logistics Information System(TLSI) of TPL operation. focused on transportation service and mechanism to use GPS model.

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A Study on the Third Party Logistics Service Enforcement of Inland Container Depot at Busan area (부산지역 ICD의 TPL(Third Party Logistics) 서비스의 기능 강화에 관한 연구)

  • Choi, Young-Bong;Lee, Chun-Su
    • Journal of Korea Port Economic Association
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    • v.25 no.3
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    • pp.165-182
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    • 2009
  • The purpose of this paper is to study on the third party logistics service enforcement of inland container depot at Pusan area. The main results of this paper are as follows: First, the inland container depot related to location selecting factor researches analyzed and korean TPL market reviewed. Second, the TPL service function reinforcement method and investments are mentioned. In detail the 9 factors are as follows: competitive high position and improvements of harbor back complex, ICD goods enterprise investment strategies, the harbor back which is inexpensive only the rent, taxes benefit and incentive, site security and base facility expansion, the goods service provision which is flexible, connection plan construction of goods enterprise, the incentive strategic establishment which is discriminated, the marketing activity which is long-term. and lastly the ICD and TPL Policy are needed that government and logistic enterprise's cooperation gains competitive advantage.

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Comparison of Anxiety, Depression, and Quality of Life between Organ Transplant Candidates and Recipients (장기이식 대기자와 수혜자의 불안, 우울 및 삶의 질 비교)

  • Cha, Ji-Eun;Yi, Myung-Sun
    • Korean Journal of Adult Nursing
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    • v.24 no.3
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    • pp.284-293
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    • 2012
  • Purpose: The aim of this study was to compare the levels of anxiety, depression, and quality of life (QOL) among kidney or liver transplant candidates and recipients. Methods: A cross-sectional descriptive design was utilized. The 160 subjects were recruited and assigned to three different conditions: awaiting transplant group; post-transplantation (TPL) group within less than one year of surgery; and post-TPL group with one year and no more than two years post surgery. The levels of anxiety and depression were measured by the Hospital Anxiety and Depression Scale. The level of quality of life was measured by the Medical Outcomes Study Short Form-36 version 2. Results: The anxiety score was significantly higher in the waiting group compared with the 1~2 years post TPL group. The depression score was significantly higher in the waiting group compared with the post TPL groups. The QOL was significantly lower in the waiting group compared with the post TPL groups. Conclusion: Our results show a high prevalence of anxiety and depression and a marked reduction in the QOL in transplant candidates compared to the recipients. This study indicates that the group waiting for transplants may have unmet needs during that time period. Health professionals should be encouraged to attend to the psychological distress of the transplant candidates in order to improve their quality of life.