• Title/Summary/Keyword: cheY

Search Result 973, Processing Time 0.026 seconds

An Study on Estimating Cargo Handling Equipment Emission in the Port of Incheon (인천항 하역장비 대기오염물질 배출량 산정 연구)

  • Zhao, Ting-Ting;Pham, Thai-Hoang;Lee, Hyang-Sook
    • Journal of Korea Port Economic Association
    • /
    • v.36 no.3
    • /
    • pp.21-38
    • /
    • 2020
  • Currently, in-port emissions are a serious problem in port cities. However, emissions, especially non-greenhouse gases, from the operation of cargo handling equipment (CHE) have received significant attention from scientific circles. This study estimates the amount of emissions from on-land port diesel-powered CHE in the Port of Incheon. With real-time activity data provided by handling equipment operating companies, this research applies an activity-based approach to capture an up-to-date and reliable diesel-powered CHE emissions inventory during 2017. As a result, 105.6 tons of carbon monoxide (CO), 243.2 tons of nitrogen oxide (NOx), 0.005 tons of sulfur oxide (Sox), 22.8 tons of particulate matter (PM), 26.0 tons of volatile organic compounds (VOCs), and 0.2 tons of ammonia (NH3) were released from the landside CHE operation. CO and NOx emissions are the two primary air pollutants from the CHE operation in the Port of Incheon, contributing 87.71% of the total amount of emissions. Cranes, forklifts, tractors, and loaders are the four major sources of pollution in the Port of Incheon, contributing 84.79% of the total in-port CHE emissions. Backward diesel-powered machines equipped in these CHE are identified as a key cause of pollution. Therefore, this estimation emphasizes the significant contribution of diesel CHE to port air pollution and suggests the following green policies should be applied: (1) replacement of old diesel powered CHE by new liquefied natural gas and electric equipment; (2) the use of NOx reduction after-treatment technologies, such as selective catalytic reduction in local ports. In addition, a systematic official national emission inventory preparation method and consecutive annual in-port CHE emission inventories are recommended to compare and evaluate the effectiveness of green policies conducted in the future.

A Study on the Iconization of Che Guevara Expressed in Contemporary Fashion (현대 패션에 나타난 체 게바라(Che Guevara)의 아이콘화에 관한 연구)

  • Kim, Hye-Jeong
    • Journal of the Korean Society of Costume
    • /
    • v.56 no.3 s.102
    • /
    • pp.1-11
    • /
    • 2006
  • Che Guevara spearheading the Cuban Revolution was not only the icon as the revolutionary to the New-leftists of the 1960s advocating the ideology of Marxism but, as the cultural revolutionary, had a tremendous influence on the younger generation living in the digital age Che Guevara take on a figure of both the symbol of the Leftist but the romantic revolutionary because he had the external features such as black beret, red stars, military upper jackets and trousers, beard and pipe tobacco. In fact, the symbolic image of Che Guevara was made as the popular image by the avantgarde artists and political vanguard forces of the times under the necessity of Cuban government. Afterwards, the image of Che Guevara has been patronized in making people of aware of the resistant and revolutionary image to capital, power and the power of the media and symbolized as the resistant image to the American capital as well as the revolutionary guerrilla. And his image has continued to be reproduced and symbolized for the commercial and political purposes and as the enthusiastic image of youth culture. This can be seen as having been created as a new image by the popular culture formed by the development of the cyber culture and mass media in the cyberspace shaped by contemporary 'N' generations. The use of Che Guevara's symbolic image was made in the fashion field as well as in the cultural and artistic circles. The borrowing of the icon of Che Guevara represented in a fashion field is attributed to his free spirit, and it can be seen that fashion exists as the vehicle for representing both the symbol system and the sign system containing ideologies and texts as the communicator of resistance to the regime and to social issues. Therefore, this study attempted to investigate the commercial iconization of Che Guevara in the 1990s by comparing the ideology of the symbol in the 1960s and the 1990s and inquire into the borrowing of his image by the fashion domain as well as the fashion worn by him by reference to domestic books and materials on the fashion site. Thereby, this study attempted to make clear that the borrowing of Che Guevara in the realm of fashion since the 1990s not only contained the meaningful interpretation as the symbolic code in the culture of young people living in a digital era but fashion performs an intervening role in the cultural phenomenon.

Effects of Dietary Coptis Chinensis Herb Extract on Growth Performance, Nutrient Digestibility, Blood Characteristics and Meat Quality in Growing-finishing Pigs

  • Zhou, T.X.;Zhang, Z.F.;Kim, I.H.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.26 no.1
    • /
    • pp.108-115
    • /
    • 2013
  • The effects of dietary Coptis chinensis herb extract (CHE) on growth performance, blood characteristics, nutrient digestibility and meat quality of growing-finishing pigs were investigated in an 18-wk feeding trial. A total of 36 Landrace${\times}$Yorkshire-Duroc pigs with an initial body weight of $20{\pm}1.0$ kg were randomly assigned to 3 dietary treatments with 6 replications per treatment and 2 pigs per pen. A maize-soybean meal-based diet was formulated as a control diet and other treatment diets were supplemented with 0.5, or 1 g CHE/kg, respectively. After the feeding period, meat samples were collected from those pigs that had reached the market BW. During the experimental periods, growth performance and apparent total tract digestibility of dry matter and nitrogen were unaffected (p>0.05) by the dietary supplementation of CHE. Plasma erythrocytes counts were increased (Linearly, p<0.05) in response to application of CHE at the end of the experiment. Moreover, pigs fed the CHE diets had better (p<0.05) meat color, pH and water holding capacity (WHC) than pigs fed the control diet. In conclusion, dietary supplementation with CHE could increase blood erythrocytes counts and improve meat quality in growing-finishing pigs but not improve growth performance.

Croton hirtus L'Hér Extract Prevents Inflammation in RAW264.7 Macrophages Via Inhibition of NF-κB Signaling Pathway

  • Kim, Min Jeong;Kim, Ju Gyeong;Sydara, Kong Many;Lee, Sang Woo;Jung, Sung Keun
    • Journal of Microbiology and Biotechnology
    • /
    • v.30 no.4
    • /
    • pp.490-496
    • /
    • 2020
  • Consumption of anti-inflammatory nutraceuticals may help treat or prevent inflammation-related illnesses such as diabetes, cardiovascular disease, and cancer. This study evaluated the effect of Croton hirtus L'Hér extract (CHE) on lipopolysaccharide (LPS)-induced nitric oxide (NO) production and nuclear factor kappa-B (NF-κB) signaling cascades. CHE significantly suppressed LPS-induced NO production and inducible nitric oxide synthase (iNOS) expression in RAW264.7 macrophages, although cyclooxygenase (COX)-2 expression was not affected. CHE also suppressed LPS-induced IκB kinase (IKK), IκB, and p65 phosphorylation in RAW264.7 cells. Western blot and immunofluorescence assays of cytosol and nuclear p65 and the catalytic subunit of NF-κB showed that CHE suppressed LPS-induced p65 translocation from the cytosol to the nucleus. CHE also suppressed LPS-induced Interleukin (IL)-6 and tumor necrosis factor (TNF)-α production in RAW264.7 cells. These results suggest that CHE prevents NO-mediated inflammation by suppressing NF-κB and inflammatory cytokines.

The Effects of Chelidonii Herba Extract on Apoptosis in Human Stomach Adenocarcinoma Cell Line (백굴채(白屈菜)가 Stomach Adenocarcinoma Cell Line의 Apoptosis에 미치는 영향)

  • Kim, Sang-Chan;Lee, Sang-Tae;Kim, Dae-Jun;Byun, Joon-Seok
    • Herbal Formula Science
    • /
    • v.13 no.1
    • /
    • pp.71-83
    • /
    • 2005
  • Chelidonii Herba (Baekgulchae in Korean: CHE), a commonly used herb in Korea, Japan and China, is widely used in the treatment of stomach cancer, jaundice, gastric ulcer, edema and pain of stomach. In the present study, we demonstrated that CHE induces apoptosis in AGS cells, human stomach adenocarcinoma cell line. One of the most important recent advances in cancer research is the recognition that apoptosis plays a major role in both tumor formation and treatment response, In this study, CHE caused a decrease of viability in AGC cells. When AGS cells were treated with CHE, cells showed dose-dependent manner apoptotic cell death. Increased apoptotic cell death, exposured to CHE, resulted from induction of Bad translocation to mitochondria, cytochrome-c release from mitochondria to cytosol, activation of caspase-3, 8, 9, and PARP cleavage. These results suggest that CHE may be potential therapeutic approach in the clinical management of stomach adenocarcinoma.

  • PDF

A Panel Study on Determinants of Catastrophic Health Expenditure of the Middle- and Old-Aged Households (중·고령 가구의 과부담 의료비 발생의 결정요인에 관한 패널연구)

  • Park, Jin Yeung;Jung, Kee Taig;Kim, Yong Min
    • Health Policy and Management
    • /
    • v.24 no.1
    • /
    • pp.56-70
    • /
    • 2014
  • Background: Korea shows rapid population aging and increase in healthcare service use and expenditure. Also, this would be accelerated because of the baby boomers who will be 65 years old and more in 2020. Chronic disease is another reason that increases the use of healthcare service and expenditure of the middle- and old-aged households. Catastrophic health expenditure (CHE) is the index which can indicate the households' burden of health spending. Despite the importance, there are few studies on CHE of middle- and old-aged households and especially no panel study yet. This is the reason that this study is carried out. Methods: This study used 3-year data from the Korea Welfare Panel Study conducted from 2009 to 2011. We defined CHE if a household's health expenditure is equal or greater than the threshold value if income remaining after subsistence needs has been met. We used 4 different threshold values which are 10%, 20%, 30%, and 40%. In order to look at the households which experienced CHE, we conducted panel logit analysis after correspondence analysis and conditional transition probability analysis. Results: This study showed three notable results. First, there has been a difference among age groups, which implies that the older people are, the more easily they can experience CHE. Second, the households with no private insurance are shown to have a higher CHE occurrence rate. Lastly, there has been a significant difference among the kinds of chronic diseases. The households which have cancer, cerebrovascular disease, and heart disease have a higher CHE occurrence rate. However, the households with diabetes have no significant effects to CHE occurrence. Also, hypertension has a negative effect to the occurrence. Conclusion: With the results, it can be implied that elderly people with chronic disease are more needed in medical coverage and healthcare. Also, private insurance can play its role in protecting households from CHE. Therefore, it needs to conduct studies on CHE especially about different age groups, private insurance, and chronic disease.

The Write Characteristics of SONOS NOR-Type Flash Memory with Common Source Line (공통 소스라인을 갖는 SONOS NOR 플래시 메모리의 쓰기 특성)

  • An, Ho-Myoung;Han, Tae-Hyeon;Kim, Joo-Yeon;Kim, Byung-Cheul;Kim, Tae-Geun;Seo, Kwang-Yell
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • 2002.11a
    • /
    • pp.35-38
    • /
    • 2002
  • In this paper, the characteristics of channel hot electron (CHE) injection for the write operation in a NOR-type SONOS flash memory with common source line were investigated. The thicknesses of he tunnel oxide, the memory nitride, and the blocking oxide layers for the gate insulator of the fabricated SONOS devices were $34{\AA}$, $73{\AA}$, and $34{\AA}$, respectively. The SONOS devices compared to floating gate devices have many advantages, which are a simpler cell structure, compatibility with conventional logic CMOS process and a superior scalability. For these reasons, the introduction of SONOS device has stimulated. In the conventional SONOS devices, Modified Folwer-Nordheim (MFN) tunneling and CHE injection for writing require high voltages, which are typically in the range of 9 V to 15 V. However CHE injection in our devices was achieved with the single power supply of 5 V. To demonstrate CHE injection, substrate current (Isub) and one-shot programming curve were investigated. The memory window of about 3.2 V and the write speed of $100{\mu}s$ were obtained. Also, the disturbance and drain turn-on leakage during CHE injection were not affected in the SONOS array. These results show that CHE injection can be achieved with a low voltage and single power supply, and applied for the high speed program of the SONOS memory devices.

  • PDF

A Case Report of a Patient with Active Ulcerative Colitis Treated with Do-Che Decoction-based Korean Medicine (도체탕(導滯湯) 위주의 한방치료로 호전된 활동성 궤양성 대장염 환자 치험 1례)

  • Yoon, Seong Woo
    • Journal of Korean Traditional Oncology
    • /
    • v.17 no.2
    • /
    • pp.17-22
    • /
    • 2012
  • Background : Sulfasalazine for treating ulcerative colitis has a clinical limitation due to its adverse effects. This case is about a patient with ulcerative colitis who could not tolerate sulfasalazine and was improved by Do-che decoction-based Korean medicine. Method and Results : Purulent and bloody diarrhea more than 20 times a day, mild fever, chilling and tenesmus were main symptoms of this patient who was diagnosed as ulcerative colitis 10 years ago. Do-che decoction-based Korean medicine which was recommended for purulent and bloody diarrhea in Dong-Ui-Bo-Gam, the classic literature of Traditional Korean Medicine was given to the patient for more than 1 month. After treatment, the frequency of purulent and bloody diarrhea, tenesmus and fever was decreased remarkably, and C-reactive protein, erythrocyte sedimentation rate, white blood cell count and maximum temperature also dropped to the normal range. Conclusion : Do-che decoction-based Korean medicine has a potential effect and may be a alternative therapeutic option in patients with ulcerative colitis who cannot tolerate sulfasalazine due to its adverse effects.

Language and History (언어와 역사)

  • 도수희
    • Lingua Humanitatis
    • /
    • v.2 no.1
    • /
    • pp.75-92
    • /
    • 2002
  • The historical facts usually remain in the linguistic records. The name of a place has been considered most useful among the records. The name of a place contains lots of information which help us analyzing and explaining the historical problems. The main purpose of this thesis is to account for the relation between language and history based on the data of the name of a place with the property just mentioned above. Firstly I will estimate the territory of the former period of Paek-Che (18B.C.~475A.D.) on the basis of the distribution of the old name of a place and show that the presumed shape of the territory could prove the fact that the unification of Shilla is 'the unification of two nations' but not 'the unification of three nations' Secondly the distribution of the old name of a place can bring light on the interrelation between Paek-Che language and Kara language and help us understand the relation of neighboring countries between two nations. Thirdly we can discuss the relation between the language of the former period of Paek-Che and of the old period of Japan: that is, how the language of Paek-Che came in the Japanese language. Also, the history of cultural domination between Paek-Che and Japan could be clarified if we can prove the linguistic similarity of two nations either to be genealogical relation or to be borrowing one.

  • PDF

A Path to Speaking Excellence: Exploring Causes and Effects among Speaking Barriers

  • Park, Chong-Won
    • English Language & Literature Teaching
    • /
    • v.13 no.1
    • /
    • pp.87-110
    • /
    • 2007
  • Past studies conducted on the students' verbal participation both in and out of class have explored and identified variables affecting the process of learning to speak English. However, little is known about the causes and effects of these variables. A survey form developed from a previous study was administered to 468 university students taking English conversation classes from native speakers of English. To better understand the causes and effects of speaking barriers, path analysis was administered as the main tool of investigation. The results of the study indicate that familiarities toward NS (Native Speaker) teachers, learner faithfulness, che-myon, NS teachers' classroom management skills, and NS teacher's trustworthiness account for 50.72% of speaking grades. These factors are causally related to learner attitudes. However, with regard to speaking grades, all of the above factors except che-myon are also causally related with each other. Therefore, it was concluded that learner attitudes can be improved by minimizing che-myon, however, che-myon itself cannot be a predictor of speaking grades. To validate the findings of the study, related research work is discussed and implications are provided.

  • PDF