• Journal of the Semiconductor & Display Technology
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• v.4 no.3 s.12
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• pp.1-4
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• 2005

Silicon oxynitride films were deposited using ammonia as a nitrogen source via PECVD (plasma enhanced chemical vapor deposition) to study the physical properties of the films. Silane and nitrous oxide were used as silicon and oxygen sources, respectively. The composition of the silicon oxynitride films was well controlled by changing the ratios of the sources and confirmed by XPS. The silicon oxynitride films with high oxygen content showed bigger compressive stress and less refractive index, while the values of surface roughness were around 1 nm, irrespective of the variation of the source ratios.

• Proceedings of the Korea Concrete Institute Conference
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• 1996.10a
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• pp.1-9
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• 1996

The aggregates with the different mineralogical features are studied how to affect the basic physical properties of concretes according to the changes of the chemical composition, mineralogical composition, crystal size, the standard qualities in the aggregates in using chemical analysis, X.R.D. DT-TGA, polarized light microscope, streoscopic microscope, standard test method of aggregates & concretes. At this studies, we found that aggregates without the seathered mineral such as muscovite & kaolin mineral etc, is superior to the others with the weathered mineral, even if it's standard qualities are inferiored to the other's. For examples, in manufacturing high strength concretes. The strength of concretes used aggregates without weathered mineral are improved about 15% than the other's and also. For general mixture to manufacture remicon, more about 10-20% than the other's strength and workability.

• Journal of the Korean Ceramic Society
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• v.37 no.7
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• pp.645-650
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• 2000

Effects of the chemical composition and sintering atmosphere on the formation of reaction phases and physical properties of reactive hot-pressed TiB2-AlN-BN composites were investigated. At N2 atmosphere, TiN was formed by the reaction between Ti and N2, which inhibited the densification and results in inferior mechanical-and electrical properties of the composites. However, at Ar atmosphere, enhanced densification and physical properties of composites were obtained due to that the TiN formation reaction was excluded. Densification of the composites was also hindered by BN, therefore, inferior mechanical-and electrical properties of composites were obtained with amount of BN in the starting materials. At Ar atmosphere, TiB2-AlN-BN composites having 318 MPa of flexural strength, 3.5 MPa.m1/2 of fracture toughness and 276$\mu$Ω.cm of electrical resistivity were fabricated from mole ratio 1:2:1.6 of Ti-Al-BN mixtures.

• Journal of Environmental Science International
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• v.30 no.6
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• pp.455-463
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• 2021

This study investigated the biomass content of fluff type SRF(Solid refuse fuel) operated in B city according to the physical composition. As a result of analyzing the physical composition of SRF, it was investigated that papers 25.2%, fiber 15.1%, vinyl·plastics 42.6%, woods 9.4%, rubbers 1.5%, diapers 3.2% and incombustibles 3.0%. The average of ash and combustible content of SRF was 10.5% and 89.5%, and the higher the proportion of paper and wood, the lower proportion of ash. In addition, the biomass of SRF is 24.9%~58.0%, with an average of 42.6%.

• Preventive Nutrition and Food Science
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• v.1 no.1
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• pp.143-150
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• 1996

The membrane fatty acid composition of tumor cell can be modified either in cell by altering the lipid composition of the medium of during growth in animals by changing the dietaty fat composition. These modifications are associated with changes in membrane physical properties and certain cellular functions, including carrier-mediated transport and enzyme contained within the membrane. Such effects influence the transport of nutrients and chemotherapeutic agents in cancer cells .Fatty acid modification also can enhance the sensitivity of the neoplastic cell to chemotherapy. The alteration in plasma membrane composition will be affected through dietary supplementations and the potential value to cancer patients could be a better understanding of the effects of diet on responsiveness of neoplasms to chemotherapy, i.e. cancer patients' chances for a "cure" can be improved by diet changes prior to treatment.

• Review of Korea Contents Association
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• v.17 no.4
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• pp.22-26
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• 2019

• Journal of The Korean Society of Integrative Medicine
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• v.8 no.1
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• pp.37-45
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• 2020

Purpose : The purpose of this study is to verify the effectiveness of combined marine healing programs by analyzing the physical composition of elderly musculoskeletal and metabolic patients, the risk factors of metabolic syndrome and the effects of the inflammatory factors, the C -reactive protein (CRP). Methods : Individuals with musculoskeletal and metabolic diseases were identified, and marine healing programs were conducted for f our hours each day for two weeks with 11 elderly participants. A one-way RM ANOVA was conducted to determine the differences due to treatment with composite marine healing systems. The results are as follows. Results : After a two-week ocean healing program, weight decreased the most, while BMI also decreased and muscle mass increased. Waist circumference, a risk factor for metabolic syndrome and CRP, decreased, and CRP demonstrated a decreasing trend. Conclusion : The above results show that the two-week marine healing program has a positive effect on the body composition and inflammatory factors of elderly musculoskeletal and metabolic patients.

• Journal of the Korean institute of surface engineering
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• v.43 no.2
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• pp.64-72
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• 2010

CuSnZn electroplating was investigated as alternative to Ni plating. Evaluation of electrolyte and plating process was performed to control physical characteristics of the film, and to collect practical data for application. Hull-cell test was conducted for basic comparison of two commercialized products and developed product. Based on hull-cell test results, long term test of three electrolytes was performed. Various analysis on long term tested electrolyte and samples have been done. Reliable and practical data was collected using FE-SEM (FEI, Sirion), EDX (ThermoNoran SIX-200E), ICP Spectrometer (GBC Scientifi c, Integra XL), FIB (FEI, Nova600) for anlysis. Physical analysis and reliability test of the long term tested film were also carried out. Through this investigation plating time, plating speed, electrolyte composition, electrolyte metal consumption, hardness and corrosion resistance has been compared. This set of data is used to predict and control the chemical composition of the film and modify the physical characteristics of the CuSnZn alloy.

• Journal of Home Health Care Nursing
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• v.26 no.1
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• pp.102-110
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• 2019

Purpose: This study aimed to investigate the effects of a nurse-led community comprehensive exercise program on the body composition, physical function, and health-related quality of life in elderly patients with osteoporosis. Method: The study was conducted with one group pretest-posttest design. A total of 57 elderly patients participated in 8 weeks of intervention. Data was analyzed with the SPSS ver. 23.0 using descriptive statistics and paired t-test. Results: At the end of the intervention, body mass index was significantly increased (t=2.93, p=.005), but right leg balance (t=2.40, p=.02) was significantly improved. In addition, the total Korean-Western Ontario and McMaster Universities Osteoarthritis Index (K-WOMAC) (t=3.48, p=.001), knee pain (t=2.61, p=.012), stiffness (t=2.53, p=.014), and physical function (t=3.51, p=.001) were significantly decreased. EuroQoL Visual Analogue Scale (EQ-VAS) scores (t=4.25, p<.001) were significantly improved. Conclusion: The nurse-led eight-week community comprehensive exercise program did not show desirable change in the body composition but was effective on the physical function and health-related quality of life for older people with osteoartritis.

• Journal of the Korea Institute of Military Science and Technology
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• v.5 no.4
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• pp.49-56
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• 2002

For the purpose of the increase in the performance and thermal stability of PBX's, the mixed formal consisting of BDNPF, DNPBF and BDNBF were synthesized. In order to find out the optimal condition for the synthesis of energetic plasticizer, BDNPF, DNPBF and BDNBF, the synthetic procedures have been investigated. We synthesized DNP-OH and DNB-OH through oxidative nitration and controlled various composition of mixed formal by $H_{2}SO_{4}$ and s-trioxane to investigate optimal composition, and then characterized its thermo-physical properties.