• Weed & Turfgrass Science
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• v.5 no.4
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• pp.268-273
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• 2016

Potassium is well-known to improve turfgrass tolerance to environmental stresses such as low temperature and drought stress. Low mowing height reduces leaf area of turfgrass that is main place for photosynthesis and carbohydrate production. Closely-mowed turf would suffer from summer decline by low level of carbohydrate resulted from low photosynthesis of reduced leaf area. The objective of the study is to investigate K rate and mowing height for Kentucky bluegrass. The K rate treatments were 5, 10, and $20g\;K_2O\;m^{-2}$ for the low, medium and high K rates, respectively. The bi-weekly mowing treatment was made for treatments. Mowing was implemented at 40 and 100 mm using a rotary mower. Regardless K rates, the high mowing height would be required when the air temperature is higher than $28.5^{\circ}C$ and high turfgrass quality of Kentucky bluegrass is needed. When the air temperature is optimal for cool-season grass, the high mowing height and the low K rate is needed for the root length of Kentucky bluegrass.

• The Bulletin of The Korean Astronomical Society
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• v.43 no.2
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• pp.49.2-49.2
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• 2018

한국천문연구원에서 "동아시아 천문아카이브 구축을 위한 기획연구"의 일환으로 2018년 4월부터 6월까지 수행한 천문사료 연구 계획을 소개하고자 한다. 이 연구의 목적은 정사 및 개인문집에 수록된 방대한 한국의 천문기록자료를 집대성하는 것이다. 우선적으로 고려사, 조선왕조실록, 승정원일기 등의 정사에 수록된 천문 기록들을 일정한 형식으로 수집하려고 한다. 이들을 다른 관찬 문헌 및 사찬 문집 등과 비교 연구를 통해 e-science 기반 자료로 활용하고자 한다. 1 단계 총 5년간의 연구기간을 통해서 순차적으로 open science platform 형식의 천문 아카이브로 제공할 계획이다.

• Journal of Korean Library and Information Science Society
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• v.39 no.3
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• pp.213-245
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• 2008

The aim of this study is to demonstrate the effectiveness of bibliotherapy program for university students. Bibliotherapy program was designed and apply to crash course of 'Library Science' at Graduate School of Library, Archive & Information Studies in Pusan National University for fall semester 2006. A evaluation way of bibliotherapy program was a self-evaluation method for 5 cases of 39 university students participated in bibliotherapy program with examining of self-identity. The results have two obtains. 1) This program has a effectiveness in change of inner world. 2) Bibliotherapy program has a effectiveness in establishing ego-identity of university students.

• Journal of The Korean Astronomical Society
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• v.43 no.3
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• pp.65-74
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• 2010

We investigate ${\rho}$ Pup using the high resolution spectral observations taken from the VLT archive and observations at a 1.8m-Korean telescope with BOES spectrograph. The atmospheric parameters are determined using the iron-line abundance analysis. We derive an effective temperature value of $T_{eff}=6890{\pm}250K$, surface gravity of log g=$3.28{\pm}0.3$ dex, microturbulent velocity of ${\upsilon}_{micro}=4.1{\pm}0.4km\;s^{-1}$, and the iron abundance of log N=$7.82{\pm}0.15$. The projected rotational velocity of the star is close to ${\upsilon}$ sin i=3.5km $s^{-1}$. Asymmetric line profiles in the observed spectra and variation of this asymmetry with time show that both strong radial pulsation and weak non-radial pulsations are present in ${\rho}$ Pup.

• Asian Pacific Journal of Cancer Prevention
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• v.16 no.1
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• pp.351-354
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• 2015

Background: To identify the potential prognostic role of the neutrophil/lymphocyte (N/L) ratio in larynx carcinoma. Materials and Methods: Oncologic archive charts of patients with a larynx carcinoma diagnosis between the years 2010 and 2013 were retrospectively reviewed. The inclusion criterion was to be available with hemogram test prior to diagnostic procedure. Patients undergoing septorinoplasty comprised the control group. Results: There were 65 cases in the study and 42 cases in control group meeting inclusion criteria. In general a non-significant increase in N/L ratio was observed with increasing tumor size and stage (p>0.05) in larynx carcinoma. The N/L ratio was found to be significantly higher in larynx carcinoma compared to control group (p=0.004). Conclusions: In conclusion, the N/L ratio was shown to be significantly increased in larynx carcinomas compared to control group. Further studies are needed to assess any prognostic role.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06c
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• pp.98-101
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• 2011

코호트연구는 특정 집단을 계속 추적해 가면서 과거의 행동이 미래에 어떠한 영향을 미치는가에 대하여 알아보는 역학적 연구이다. 짧게는 2개월에서 길게는 수십 년에 걸쳐서 진행 된다. 일반적으로 식사조사 프로그램을 이용하여 연구대상자들에 대한 식사조사기록을 저장하게 되는데, 이러한 기록들은 수십 년에 해당하는 결과를 장기간 지속적으로 저장하고 보존하여야 한다. 하지만, 현존하는 식사조사 프로그램들은 대부분 운영체제 및 시스템에 종속적이기 때문에 운영체제가 변경되면 프로그램도 같이 변경되어야 하는 문제점을 가지고 있다. 이는, 장기간의 식사조사기록을 보관하여 연구를 하는 코호트연구에 있어서는 심각한 문제이다. 때문에, 장기보존을 위해서는 장기보존 시스템을 구축할 필요성이 존재하며, 각 식사조사 프로그램은 장기보존시스템과 연동 할 수 있는 식사조사 기록 생성 시스템이 필요하다. 따라서 본 논문에서는 OAIS(Open Archival Information System) 참조 모델의 SIP와 METS(Metadata Encoding and Transmission Standard)를 이용하여 식사조사기록을 장기 보존 관리 하는 시스템에 적용할 수 있는 식사 조사기록 생성 시스템을 제안 한다. 제안한 시스템은 XML 패키지를 이용하여 식사조사기록을 생성하는 인터페이스를 제공한다.

• Genomics & Informatics
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• v.21 no.4
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• pp.51.1-51.5
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• 2023

The genus Neoarius, known as marine catfish, is a group of the family Ariidae, composed of 10 species found in Oceania. None of the species in this genus have their mitochondrial genome described, which is highly valuable in phylogenetic and molecular evolution studies. For the present work, eight species from the Neoarius genus were selected: Neoarius utarus, Neoarius midgleyi, Neoarius graeffei, Neoarius leptaspis, Neoarius berenyi, Neoarius paucus, Neoarius pectoralis, and Neoarius aff. graeffei. DNA sequences of the eight species were obtained through the NCBI Sequence Read Archive (SRA) database, and the mitochondrial genomes were assembled using the NOVOplasty tool on the Galaxy platform, subsequently annotated with the MitoAnnotator tool. We then utilized the protein-coding genes from the mitogenomes to estimate the phylogenetic relationships within the group, including seven additional mitogenomes available in the NCBI. In all species, the mitochondrial genomes presented 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and 1 D-loop.

• The Bulletin of The Korean Astronomical Society
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• v.39 no.2
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• pp.61.1-61.1
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• 2014

IC 10 is one of the most well-known irregular starburst dwarf galaxies in the Local Group. Its low metal and oxygen abundance together with proximity make it an excellent laboratory to test star formation models, especially in low-metallicity systems like galaxies in the early Universe as well as many other local dwarfs. Among a number of active star forming regions, we have detected H2O kilo-maser emission in the south-east region of IC 10(IC 10 SE) using the Korean VLBI Network(KVN). This maser line is likely to be associated with a giant molecular cloud identified in IC 10 SE by former CO studies. Using the HI and CO data from the VLA and SMA archive, we probe the atomic and molecular gas properties of IC 10 SE. We discuss how the cool gas morphology and kinematics are related with maser and star formation activity in IC 10 SE.

• The Bulletin of The Korean Astronomical Society
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• v.36 no.2
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• pp.71.2-71.2
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• 2011

To investigate the properties of the narrow-line regions and the accretion disks of YRGs, we study a sample of 28 young radio galaxies (YRGs) observed with the Kast Double Spectrograph at the Shane 3-m telescope and with the DBSP (Double Spectrograph for the Palomar 200-inch Telescope) at Palomar observatory. In addition we collect an addition sample of 15 YRGs with the optical spectra from the SDSS archive. We present the measured narrow-line region properties based on the various emission line ratios, i.e., [O III]/$H{\beta}$, [N II]/$H{\alpha}$, [S II] 6716/6731, [O I]/[O III], [O II]/[O III] and [Ar III]/[O III], which are useful to constrain the gas properties and the states of the accretion disk. We will discuss the characteristics of YRG.

• Weed & Turfgrass Science
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• v.2 no.2
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• pp.164-169
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• 2013

Alternatives to commercial chemical herbicide are currently being searched and tested due to the numerous adverse effects of commercially available herbicides to the environment. Barnyardgrass (Echinochloa crusgalli) is an important weed species around the world, especially in paddy rice fields. This study focuses on the favorable effects of mixing pyroligneous acids with commercial liquid herbicides. Seedlings were transplanted and grown under greenhouse conditions. The effect of treatment time or leaf-stage on herbicide-pyroligneous acid efficacies was checked, coupled with isolation and quantification of biochemical compounds. Results revealed that herbicide treatment at early post emergence (2~3 leaf stage) of Echnochloa crus-galli leads to effective control. Both liquid herbicides affected fatty acid, protein, and amino acid syntheses as reflected on their contents. The influence of wood vinegar (WV) or rice vinegar (RV) on these compounds was not thoroughly verified due to lack of information on the pyroligneous products. We observed that mixing WV or RV with BCB (bentazone + cyhalof-butyl) gives more favorable results than BUC (butachlor + clomazone), mixed with WV or RV. The result would indicate the potential of mixing pyroligneous acid in reducing herbicide application rate.