• Communications for Statistical Applications and Methods
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• v.10 no.3
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• pp.665-678
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• 2003

In this paper we suggest the new calibration estimator, which is called to the recalibration estimator, and its variance estimator using two-phase sampling technique according to the auxiliary information having strong correlation with the variable of interest under the unit nonresponse. In this unit nonresponse situation, an available information may exists at the level of whole population or the first-phase sample. The proposed recalibration estimator derives from the first and second phase weights respectively.

• 한국정보디스플레이학회:학술대회논문집
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• 2003.07a
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• pp.829-831
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• 2003

In the present study, the electroless plating method was applied instead of the sputtering as a formation method of metallic bus electrodes. No additional blackening step is needed in this method since this process provides a metallic seed layer with black color by a single step. The parameters which affects color and morphology of the metallic seed layer in the electroless plating solution were investigated

• JSTS:Journal of Semiconductor Technology and Science
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• v.8 no.1
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• pp.1-10
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• 2008

The present status of technical development of a highly scalable, high-speed non-volatile PCM is overviewed. Major technical challenges are described along with solutions that are being pursued in terms of innovative device structures and fabrication technologies, new phase change materials, and new memory schemes.

• Transactions of the Korean Society of Mechanical Engineers
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• v.1 no.4
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• pp.182-189
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• 1977

The propagating flame temperature of the Propane-Air premixture by using 30.$\mu$ and 50.$\mu$ diameter platinum sensing wires, that is, Two Wires Correction Method, Through the constant volume burining inside the 150mm diameter, 30mm height combustion chamber under the circumstances of the atomospheric pressure, and the room temperature was determined. Also the temperature distribution across High Temperature Region, i.e. Flame Front, and the temperature profile behind the flame the front have been obtained.

• Journal of Ginseng Research
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• v.7 no.2
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• pp.163-168
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• 1983

Effect of rice hull mulching and peat application on seedling yield of Panax ginseng was investigated in modified Yang-jig seedbed. Mulching and peat increased soil moisture content but effect was not additive. Seedling yield was positively correlated with magnesium organic matter, potassium especially with soil moisture and calcium. Straw mulching is expected to be superior for practice.

• Investigative Magnetic Resonance Imaging
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• v.22 no.4
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• pp.240-244
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• 2018

Primary extranodal bone lymphoma involving the peripheral extremities is extremely rare. Here, we report a definitive case of diffuse large B-cell lymphoma involving the phalangeal bone of the 3rd finger. Systemic evaluation revealed the lesion as the only site of lymphoma involvement.

• Proceedings of the PSK Conference
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• 2003.04a
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• pp.219.1-219.1
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• 2003

RNA polymerase II (pol II) is known to cycle between hyperphosphorylated and hypophosphorylated forms during transcription cycle. These extensive phosphorylation/dephosphorylation event occurs in the C-terminal domain (CTD) of the largest subunit of pol II which consists of a tandemly repeated heptapeptide motif with consensus of YSPTSPS. (omitted)

• Proceedings of the PSK Conference
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• 2002.04a
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• pp.164.1-164.1
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• 2002

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.30 no.3
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• pp.20-30
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• 2017

Background : Tinnitus is common disorder with many possible causes and a symptom of many different diseases but has no effective treatment. Approximately 20% of tinnitus patients experience the disorder to a degree that their quality of life and productivity are impaired. Objectives : 1. Through symptoms of tinnitus, we tried to find out the relationship of Heo-sil(虛實) and Jang bu byun jeung(臟腑辨證). 2. By testing THI, we tried to evaluate the quality of life between high-grade tiny noise and low-grade roar tinnitus patients group. Methods : 34 patients were recruited in this study who was ill with tinnitus. They wrote out the questionnaire about tinnitus and the tinnitus Handicap Inventory(THI). Results : 1. The vast majority of high-grade tiny noise patients are Heojeung(虛症). 2. The vast majority of low-grade roar patients are Siljeung(實症). 3. The number of patients with intermittent and persistent tinnitus is similar. 4. In high-grade tiny noise, Sin jung hyu son type(腎精虧損型) patients are less comfortable with quality of life than Bi wi heo yak type(脾胃虛弱型) patients. 5. Low-grade roar patients are less comfortable with quality of life than high-grade tiny noise atients Conclusions : Jang bu byun jeung(臟腑辨證) and Distinguishing between Heo(虛) and Sil(實) is expected to have positive effects on tinnitus treatment.

• Journal of Biosystems Engineering
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• v.7 no.2
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• pp.36-44
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• 1983

Farm population was rapidly decreasing due to shift of the people from farm sector to the non-farm sector caused by the economic growth of the country. Especially, a great shortage of farm labor in busy farming period in June and October is becoming a serious problem in maintaining or promoting land productivity. The peak of labor requirement in summer is caused by rice transplanting and barley harvesting. In order to reduce the restrictions imposed on farm management by the concurrence of labor requirement and the lack of labor, the experimental study for mechanization of barley harvesting has been carried out in the fields. 1. The machines for barley harvesting were knap-sack type reapers, windrow reaper (power tiller attachment), binder and combine. The order of higher efficiency of machine for barley harvesting was combine, binder, windrow reaper (WR), knapsack type reaper 1(KSTR1), and knap sack type reaper 2(KSTR2; mist and duster attachment). 2. The ratio of grain loss for the manual, binder, and combine plot was about four percent of total field yield. 3. The total yield of barley in 35 days and 40 days harvesting after heading were 514 kg and 507kg per 10 ares respectively. The yield of 35 days-plot was higher than other experimental plots. 4. The lowest yield was recorded in 30 days-plot due to the large quantity of immatured grains and having lighter 1000-grain weight. The ratio of immatured grains was 2.66 percent and 1000-grain weight was 29.4 grams. 5. The total harvesting cost of the windrow reaper was 10,178 won per 10 ares. It was the lowest value compared to other machines. The next were combine, binder, KSTR1, KSTR2, and manual in sequence. As a result, the optimum time of barley harvesting for mechanization was 35-40 days after heading. Combine, binder, and windrow reaper were recommended as the suitable machines for barley harvesting in the work efficiency. However, in total harvesting cost, the windrow reaper was the most promising machine for barley harvesting.