• Proceedings of the Optical Society of Korea Conference
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• 1999.08a
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• pp.128-129
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• 1999

Polygon Mirror Scanning(PMS) is composed of LED array, magnifying lens, polygon mirror and motor. It is important to correct the lens aberrations to gain the image we want to show. In this paper, we have simulated the lens aberration correction to reduce the spherical aberration . We have obtained a aspherical lens which is corrected the spherical aberration.

• 프린팅코리아
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• v.11 no.12
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• pp.104-107
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• 2012

일진 PMS(주)(대표이사 박경재)는 지난 11월 9일 고모리의 최신 인쇄기술인 H-UV시스템을 탑재한 인쇄기 시연회를 가졌다. 이날 시연회는 고모리 본사 고모리 요시하루 사장, (주)일진PMS 관계자, 인쇄인 등이 참석한 가운데 (주)선명씨앤피와 으뜸프로세스(주)에서 열렸다. H-UV는 최신 건조 시스템으로 앙면인쇄 시연이 채 10분도 걸리지 않았다.

• Korean Journal of Soil Science and Fertilizer
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• v.33 no.6
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• pp.453-462
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• 2000

This study was carried out to know the effect of urea addition for composting of paper mill sludge(PMS). For the purpose. PMSs containing 0%, 1.5%, 3%, and 6% urea were composted at aerated static pile(ASP) for about 80day periods. During the composting, the basic physical, chemical, and biological parameters such as temperature, color. C/N ratio, cation exchange capacity, and phytotoxic test were investigated. From the measurement of the parameters, 0~3% urea-containing PMS except for 6% urea-containing PMS showed to be normally stabilized. Thus among these treatments, 0% and 3% urea-containing PMS were applied at agitated bed system(ABS), a pilot plant of a large scale, to evaluate the possibility of practical use. Considering to the changes of the parameters investigated during composting in ASP and ABS, PMS showed to be successfully stabilized in the two facilities. However, when composted with PMS and urea, even the final PMS compost stabilized for a period enough brought out the bright grayish color. So it may be necessary to add a subsidiary amendments such as animal manure to form brown-colored products.

• Korean Journal of Food Science and Technology
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• v.31 no.2
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• pp.458-464
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• 1999

The value of lysozyme as a natural food preservative is continuously increased due to its unique antimicrobial activity. To determine the optimum separation concentration among the various hen egg white protein (HEWP) concentrations (0.25, 0.5, 1.0, w/v), protein concentrations, lysozyme concentrations, specific activities (SA), and purification factors of prefiltered solution (PFS) and PM30 permeate solution (PMS) were compared. The purity of lysozyme separated at each step was analyzed and confirmed by gel permeation chromatography and electrophoresis. The fouling deposits on membrane were observed by SEM. The non-enzymatic proteins were removed over 99% by ultrafiltration (UF). The increased feed concentration did not contribute to the increase of SA. SA of PMS was 18 to 31 times higher than that of PFS. The optimum feed concentration was decided as 0.25% based on SA and purification factor. The non-enzymatic region of gel chromatogram was proved to be ovalbumin. The thickness of deposit on the UF membrane was approximately $0.9{\mu}m$ and removed by cleaning with 0.1 N NaOH. Therefore, UF using PM30 membrane was very effective to separate the antimicrobial lysozyme from various HEWPs.

• Journal of Mushroom
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• v.21 no.3
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• pp.126-131
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• 2023

In this study, the protein content and functional changes in soybeans cultured with Phellinus linteus HN00K9 were analyzed. P. linteus HN00K9 was cultured on soybeans. The crude protein content in soybeans cultured with HN00K9 (PMS) was 41.99%, which was higher than that in soybeans not cultured with the mushroom (UCS). The total free amino acid content in PMS increased to 39,963 mg/100 g, which was higher than that in UCS (36,817 mg/100 g). In particular, in PMS, glutamic acid accounted for 18.5% of the total amino acids at 7,413 mg/100 g. The total polyphenol content in PMS was 2.66 mg GAE/g, which was more than 45% higher than the amount in UCS (1.45 mg GAE/g). Additionally, PMS showed a DPPH radical scavenging activity of 33.3%, which was 3 times higher than that exhibited by UCS (11.5%), reflecting its high antioxidant content. Therefore, the PMS in this study has potential for use as a functional food material.

• Journal of Digital Convergence
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• v.12 no.1
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• pp.209-219
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• 2014

In this study, questionnaires and field interviews in practice the use of PMS, in assessing companies' usage and employee's perceived importance of performance measures for the characteristics of PMS was investigated. The results of this study can be summarized as follows: First, the companies in the respective business environment and strategies to improve the performance measures reflect, but was using a lot of financial measures. Second, discrepancy-between employee's perceived importance and companies' usage of non-financial measures was showed. Thus, there is a need to develop a variety of performance measures and increase the use of non-financial measures. Third, the company has to consider design and use of PMS to induce the awareness of employees and behavioral changes in order to improve organizational performance.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.29 no.12 s.243
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• pp.1645-1652
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• 2005

Pick-and-place systems using suction cups have been being widely used and continuously developed in production automation. There are, however, some drawbacks in constructing such systems. One of them is that it generates high level noise due to air compressors. And the system must have complex constitutions of mechanical component such as air compressors, air tubes, air valves, etc. Moreover, it needs continuous air supply to maintain vacuum in suction cups. If there is a failure in any suction cup, the total suction system may fail owing to air leakage. To overcome these drawbacks, we propose PMS (Permanent Magnet Suction) mechanism which has permanent magnets for vacuuming suction cups with no air compressor. The basic concept of PMS mechanism is to rotate permanent magnets with fixed angle. Simple rotation of permanent magnets changes the direction of the magnetic force applied at the suction cups. Since each suction cup has no direct connection with any of the others, the air leakage at one suction cup is not critical. The proposed suction mechanism was designed and fabricated. With some experiments, the feasibility and performance of the PMS mechanism was shown. The strong points of the PMS mechanism are in its simple structure, generating low noise, high energy efficiency, and no need of continuous energy supply.

• Journal of the Korean Society of School Health
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• v.33 no.2
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• pp.106-114
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• 2020

Purpose: This study was performed to measure the influence of premenstrual syndrome coping strategies and food cravings on premenstrual syndrome symptoms among female college students. Methods: A cross-sectional survey was done with the participation of 509 female college students in D city. Data were analyzed using a t-test, ANOVA, Scheffé test, Pearson's correlation coefficients, and Hierarchical multiple regression. Results: The average scores for PMS coping mechanisms, food cravings, and premenstrual syndrome symptoms were 1.58, 2.32, and 2.82, respectively. There were significant differences in PMS symptoms according to food, menarcheal age, menstrual amount, menstrual pain and whether their mother or sister has dysmenorrhea. The factors influencing premenstrual syndrome symptoms of female college students were identified as avoidance (β=-.16, p<.001), menstrual cycle specific (β=-.11, p=.013), and cognitive restraint on eating (β=.13, p=.026). This factor explained 35% of female college students' premenstrual syndrome symptoms. Conclusion: Therefore, it is necessary to take appropriate stress coping measures for the subjects.

• Journal of Korean Academy of Nursing
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• v.34 no.8
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• pp.1395-1401
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• 2004

Purpose. To compare perimenstrual (premenstrual, menstrual, postmenstrual) symptoms by concurrent reporting using the Women's Daily Health Diary (WDHD) and by retrospective reporting using the Moos Menstrual Distress Questionnaire (MMDQ). Methods. A prospective and retrospective study was conducted among 31 Korean women, aged 27 to 48 yrs, living in the USA. Results. On the prospective report using the WDHD, the most severe complaints were fatigue or tiredness ($1.48{\pm}.98$), sensation of weight gain ($.88{\pm}98$), increased appetite ($.79{\pm}.96$) in premenstrual phase, fatigue or tiredness ($1.34{\pm}.85$), backaches ($1.06{\pm}.79$), and bloating or swelling of the abdomen ($.93{\pm}.86$) during the menstrual phase. On the retrospective report using the MMDQ, the most severe complaints during the premenstrual phase were fatigue ($2.26{\pm}1.65$), irritability ($2.06{\pm}1.48$), and backaches ($1.97{\pm}1.68$) and during the menstrual phase backaches ($2.35{\pm}1.62$), fatigue ($2.29{\pm}1.75$), and cramps ($2.23{\pm}1.80$). According to both measurements of PMS symptomology during the premenstrual and menstrual phases, the most frequently reported symptom was fatigue or tiredness. Highly rated symptoms on the MMDQ and on the WDHD were found to be similar. Conclusion. The WDHD was found to be suitable for daily prospective PMS assessment, which will be necessary for the screening and management of women with severe PMS.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.64 no.7
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• pp.992-998
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• 2015

The ESS is composed of Battery Package, PCS(Power Conditioning System) Package, BCU(BESS Control Unit). In Jeju smart grid test-bed, we have developed a business model by ESS power system, renewable energy, transportation, such as customers, and have demonstrated above things. We have analyzed the EMS(Energy Management System) model of KPX where manages supply and demand of domestic electrical power system. We modified and launched EMS for microgrid but the cost was expensive and the system was large size. For releasing this system from industry as a whole, it is imperative to develop PMS(Power Management System) for microgrid. However, the cost of EMS for microgrid is expensive, some systems because it is a large development of the all of the first fruits in urgent PMS(Power Management System) for microgrid to be used in industry in general. Therefore, in this paper, we propose the ESS model considering the power systems characteristics and extensibility in korea. and also we propose the PMS to manage the ESS systems.