• 한국조리학회지
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• 제21권2호
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• pp.52-59
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• 2015

본 연구는 사물탕을 첨가한 데리야끼 소스의 품질 특성을 측정하여 기능성 식품으로 개발하고자 수행되었다. 사물탕을 첨가한 데리야끼 소스의 가용성 고형분 함량은 $58.33{\pm}1.15{\sim}76.00{\pm}4.58(%)$였으며, 염도는 $0.38{\pm}0.20{\sim}60.63{\pm}0.36(%)$으로 수용성 고형분 및 염도 모두 사물탕 첨가량이 늘어남에 따라 유의적으로 감소된 값을 나타냈다. pH는 $4.16{\pm}0.12{\sim}4.26{\pm}0.12$로 첨가량에 따라 그 값이 증가하였으나 유의적인 차이는 나타나지 않았고, 적정산도는 $2.00{\pm}0.02{\sim}2.13{\pm}0.03$의 값으로 대조구 및 5% 첨가구 사이의 차이는 나타나지 않았으며, 10% 이상 첨가시 그 값이 증가함을 보였다. 점도 측정 결과, $21.53{\pm}1.88{\sim}44.40{\pm}0.80(cp)$으로, 사물탕 첨가량이 증가함에 따라 데리야끼 소스의 점도값이 낮아졌다. 전자공여능 측정 결과, $25.72{\pm}1.52{\sim}32.94{\pm}0.94(%)$로 사물탕 첨가량을 증가시 킴에 따라 유의적으로 값이 높아졌으나, 5% 첨가구와 대조구 사이의 차이는 나타나지 않았으며, 10%와 15% 첨가구 사이의 유의적인 차이는 나타나지 않았다. 기호도 평가 결과, 향, 단맛, 짠맛에 대한 평가결과 대조구보다 첨가구의 값이 낮았으며, 데리야끼 소스에서 인지되는 사물탕의 향과 맛을 평가한 결과, 10% 첨가구에서 높은 기호도를 나타냈고, 사물탕 맛에서도 사물탕 첨가구에서 무첨가구보다 높은 기호도를 나타냈다. 전반적 기호도는 15% 첨가구에서만 비교적 낮은 값을 나타내, 사물탕을 10% 수준으로 데리야끼 소스에 첨가하는 것은 기능성을 부여한 식품으로서 그 사용 가능성이 높다고 생각된다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제44권5호
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• pp.225-231
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• 2018

Objectives: The purpose of this study was to investigate the demographic and clinical characteristics of patients with medication-related osteonecrosis of the jaw (MRONJ) and to elucidate factors affecting recurrence in surgical treatment. Materials and Methods: A total of 51 patients who were diagnosed with MRONJ were analyzed according to demographic and clinical features and treatment results through a retrospective chart review from 2013 to 2017 in the Department of Oral and Maxillofacial Surgery, Korea University Anam Hospital, Seoul in Korea. Results: Alendronate composed the majority of medication doses (55.6%), followed by ibandronate (20.0%), risedronate (15.6%), and zoledronate (6.7%). Forty patients (88.9%) were given oral medication, and five patients (11.1%) were intravenously treated, and the mean duration of medication use was $61.1{\pm}42.9$ months. A total of 10 patients (22.2%) had a drug holiday before MRONJ-induced dental treatment lasting an average of $6.8{\pm}7.0$ months. MRONJ occurred 2.7 times more in the mandible, with 41 cases (73.2%) occurring in the mandible and 15 cases (26.8%) occurring in the maxilla, and the prevalence of affected posterior parts (premolar-molar) was six times greater than that of the anterior parts (incisor-canine) (48 cases vs 8 cases, 85.7% vs 14.3%). The most common dental cause of MRONJ was tooth extraction (69.6%). Regarding recurrence, there was no statistical difference in recurrence rate according to either site or stage. However, recurrence occurred in 4 out of 34 cases (11.8%) in the primary closure group and 9 out of 20 cases (45.0%) in the secondary healing group, and there was a statistical difference with respect to closure technique. Conclusion: The identified risk factors in patients taking bone resorption inhibitors can aid dental clinicians in ensuring prevention and proper treatment of MRONJ.

• 대한한방소아과학회지
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• 제25권2호
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• pp.111-120
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• 2011

Objectives: The purpose of this study is to estimate genetic and environmental factors, which can affect Idiopathic true Precocious puberty, and to evaluate the clinical and endocrinologic characteristics. Methods: Retrospective and Comparative analysis of 76 children (72 girls and 4 boys) has been diagnosed with idiopathic true precocious puberty, and treated with GnRHa from December 2008 to July 2011. Results: 1. The Average chronological age (CA. yr) of children diagnosed with idiopathic true precocious puberty was $8.40{\pm}0.81$ (girls), $9.93{\pm}0.12$ (boys). 2. The Average height & weight percentile (%ile) of the girls diagnosed with idiopathic true precocious puberty was $67.38{\pm}22.04$, $67.69{\pm}23.20$. 3. The girls' mothers have diagnosed with idiopathic true precocious puberty, and they were shorter than the average. This shows that mother's small height and idiopathic true precocious puberty are closely related to each other. 4. BMI percentile (%ile) of girls diagnosed with idiopathic true precocious puberty was $63.26{\pm}24.86$. 23.6% of children were diagnosed with overweight or obesity. This result shows that obesity and idiopathic true precocious puberty are proportionally related. 5. Birth weights (kg) of the children diagnosed with idiopathic true precocious puberty were $3.16{\pm}0.43$ (girls), $3.15{\pm}0.38$ (boys). 8.3% of children were diagnosed with Intrauterine growth retardation. 6. The Average bone ages (BA. yr) of the children diagnosed with idiopathic true precocious puberty were $10.51{\pm}0.99$ (girls), $12.10{\pm}0.97$ (boys). The Average BA-CA was $2.11{\pm}0.81$ (girls), $2.00{\pm}0.87$ (boys). 7. The Average predicted adults' height (PAH. cm) of the children diagnosed with idiopathic true precocious puberty was $151.61{\pm}4.00$ (girls), $163.50{\pm}2.15$ (boys). The Average MPH-PAH was $6.84{\pm}4.91$ (girls), $6.00{\pm}5.35$ (boys). 8. 23.6% of the children treated with GnRHa were co-treated with Growth Hormone. Conclusions: Estimated factors which cause Idiopathic true precocious puberty are mother's small height, obesity, and Intrauterine growth retardation. However, the studies of Oriental Medicine for Idiopathic true precocious puberty were lacking. Further clinical and experimental researches are needed.

• 유기물자원화
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• 제8권1호
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• pp.77-82
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• 2000

3개소의 자연갯벌과7개소의 인공갯벌을 대상으로 토양중의 물리화학적, 생물학적 특성 및 미생물호흡량등과 같은 갯벌의 구조와 기능을 비교 평가하므로서 갯벌의 복원 및 창출기술개발을 위한 기초적 자료를 제시하였다. 자연갯벌의 실트함유량, 질소 및 탄소함유량은 인공갯벌보다 높은 것으로 나타났다. 또한 산화환원전위에 있어서도 자연갯벌의 경우는 토양 깊이 2cm이하부터 환원층이 발달되었지만, 인공갯벌의 경우는 토양 표면에서 20cm이상까지 산화층을 나타내었다. 자연갯벌의 미생물현존량은 인공갯벌들과 비교하여 10~100배 높은 값을 나타내었다. 또한 토양중의 미생물현존량과 실트함유량이 가장 높은 상관관계를 나타내었으나, 저서생물과 미생물호흡량은 자연갯벌과 인공갯벌 간에 현저한 차이는 관찰할 수 없었다. 갯벌의 정화기능을 정량적으로 산정한 결과, 인공갯벌이 자연갯벌보다 해수의 정화량이 높게 나타났는데, 이는 자연갯벌보다 인공갯벌이 정화에 관여하는 토양의 투수층이 깊기 때문이라 판단된다. 그러나 인공갯벌 중에도 자연갯벌과 유사한 해수유동의 분포를 가진 지역에서는 자연갯벌과 유사한 구조와 기능을 보유하고 있는 것으로 밝혀졌다. 따라서 해수의 정화기능을 강화하기 위한 인공갯벌의 창출은 가능할 것으로 판단되며, 자연갯벌과 유사한 구조와 기능을 가진 인공갯벌을 복원 또는 창출하기 위해서는 토양 중의 실트과 같은 미소입자의 함유량을 높게 유지하여 미생물현존량을 높게 유지시키고, 실트함유량을 유지하기 위하여 해수의 유동을 약하게 할 수 있는 방안이나 입지조건을 선택하여야 할 것이다.

• 센서학회지
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• 제18권4호
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• pp.286-293
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• 2009

The implantable middle ear hearing devices(IMEHDs) have been developed to overcome the conventional hearing aid's problem(ringing effect caused by the acoustic feedback, cosmetic problem, etc.). In the IMEHDs, the vibrating transducer is a key component because its vibration enables to hear for hearing impaired people. The vibrating transducer is implanted on ossicular chain by surgical operation. The coupling status between implanted transducer and ossicular chain has an effect on delivering vibrating force from transducer to stapes. Noninvasive method is required to investigate the output characteristics of IMEHDs after implementation. Recently, emitted sound pressure measuring method of tympanic membrane is proposed to investigate the output characteristics of IMEHDs. However, the relationship between displacement of stapes and sound pressure by tympanic membrane was not cleared. In this paper, displacement of stapes and sound pressure by tympanic membrane were measured using the differential floating mass transducer(DFMT) that implanted on the ossicular chain of the human temporal bone and physical ear model. Through the experiments results, the relationship between displacement of stapes and sound pressure by tympanic membrane was investigated.

• Journal of Animal Science and Technology
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• 제48권2호
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• pp.247-254
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• 2006

본 연구는 보리의 급여수준이 한우수소의 성장과 육질에 미치는 효과를 조사하고자 실시되었다. 수송아지 20두(평균체중 99㎏)를 공시하여 한우수소의 육성비육 시 보리의 급여수준(육성기－비육전기－비육후기 보리 배합비; 0-0-40, FⅡ40; 0-0-60, FⅡ60; 0-20-40, F2040; 0-20-60, F2040)이 증체와 육질에 미치는 효과를 구명하였다. 시험기간 동안의 체중은 성장단계별 보리 급여수준 간 차이는 보이지 않았으나, FⅡ40구의 24개월령 체중이 591.5kg으로 606.2～614.6kg 내외의 다른 처리구에 비해 다소 감소된 경향이었다. 그러나 FⅡ60구는 비육후기에 보리 60% 첨가된 사료를 섭취하면서 증체가 개선되는 경향이 있었다(P<.19). 한우수소에 대한 보리위주 사료의 급여는 생체중, 도체중과 도체율, 정육률, 거래정육률 그리고 KPH 지방과 뼈의 비율 등의 도체특성에 있어 처리 간 차이는 없었으나, 보리를 비육전기에 20%, 비육후기에 60% 급여한 F2060구의 한우수소에서 정육률과 지방률이 각각 89.82, 20.28%로 다른 처리구에 비해 다소 높았으며, 이로 인해 거래정육률은 최대 5.5% 가량 낮게 나타났다. 근내지방도는 FⅡ40구 및 F2060구에서 각각 3.75, 3.60으로 다른 처리구에 비해 높은 편이었으며, 조직감 역시 FⅡ60구와 F2060구가 공히 1.6으로 다른 두 처리구에 비해 양호하였다.

• 한국농림기상학회지
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• 제5권2호
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• pp.101-109
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• 2003

The study area, Kwangneung Experiment Forest (KEF) is located on the west-central portion of Korean peninsula and belongs to a cool-temperate broadleaved forest Bone. At the old-growth deciduous forest near Soribong-peak (533.1 m) in KEF, we have established a 1 ha permanent plot ($100m{\times}100m$) and a flux tower, and the site was registered as a KLTER(Korean long-term ecological research network) and DK site of KoFlux. In this site, we made a stemmap of trees and analyzed forest stand structure and physical and chemical soil characteristics, and estimated carbon budgets by forest components (tree biomass, soils, litter and so on). Dominant tree species were Quercus serrata and Carpinus laxiflora, and accompanied by Q. aliena, Carpinus cordata, and so on. As a result of a field survey of the plot, density of the trees larger than 2 cm in DBH was 1,473 trees per ha, total biomass 261.2 tons/ha, and basal area $28.0m^2$/ha. Parent rock type is granite gneiss. Soil type is brown forest soil (alfisols in USDA system), and the depth is from 38 to 66 cm. Soil texture is loam or sandy loam, and its pH was f개m 4.2 to 5.0 in the surface layer, and from 4.8 to 5.2 in the subsurface layer. Seasonal changes in LAI were measured by hemispherical photography at the 1.2 m height, and the maximum was 3.65. And the spatial distributions of volumetric soil moisture contents and LAIs of the plot were measured. The carbon pool in living tree biomass including below ground biomass was 136 tons C/ha, and 5.6 tons C/ha is stored in the litter layer, and about 92.0 tons C/ha in the soil to the 30 cm in depth. Totally more than about 233.6 tons C/ha was stored in DK site. These ground survey and monitoring data will give some important parameters and validation data for the forest dynamics models or biogeochemical dynamics models to predict or interpolate spatially the changes in forest ecosystem structure and function.

• Corrosion Science and Technology
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• 제8권4호
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• pp.162-169
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• 2009

Pure titanium and its alloys are drastically used in implant materials due to their excellent mechanical properties, high corrosion resistance and good biocompatibility. However, the widely used Ti-6Al-4V is found to release toxic ions (Al and V) into the body, leading to undesirable long-term effects. Ti-6Al-4V has much higher elastic modulus than cortical bone. Therefore, titanium alloys with low elastic modulus have been developed as biomaterials to minimize stress shielding. For this reason, Ti-30Ta-xZr alloy systems have been studied in this study. The Ti-30Ta containing Zr(5, 10 and 15 wt%) were 10 times melted to improve chemical homogeneity by using a vacuum furnace and then homogenized for 24 hrs at $1000^{\circ}C$. The specimens were cut and polished for corrosion test and Ti coating and then coated with TiN, respectively, by using DC magnetron sputtering method. The analyses of coated surface were carried out by field emission scanning electron microscope(FE-SEM). The electrochemical characteristics were examined using potentiodynamic (- 1500 mV~+ 2000 mV) and AC impedance spectroscopy(100 kHz~10 mHz) in 0.9% NaCl solution at $36.5{\pm}1^{\circ}C$. The equiaxed structure was changed to needle-like structure with increasing Zr content. The surface defects and structures were covered with TiN/Ti coated layer. From the polarization behavior in 0.9% NaCl solution, The corrosion current density of Ti-30Ta-xZr alloys decreased as Zr content increased, whereas, the corrosion potential of Ti-30Ta-xZr alloys increased as Zr content increased. The corrosion resistance of TiN/Ti-coated Ti-30Ta-xZr alloys were higher than that of the TiN-coated Ti-30Ta-xZr alloys. From the AC impedance in 0.9% NaCl solution, polarization resistance($R_p$) value of TiN/Ti coated Ti-30Ta-xZr alloys showed higher than that of TiN-coated Ti-30Ta-xZr alloys.

• 헤리티지:역사와 과학
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• 제47권4호
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• pp.92-105
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• 2014

인골과 인골 주변 토양에 분포하는 세균의 군집구조를 비교하기 위해 부여 오수리 큰독골 유적에서 발굴된 조선시대 회곽묘 인골 중 상대적으로 시료 상태가 좋지 않은 4호 인골과 상태가 양호한 5호 인골 및 주변 토양에서 DNA를 추출하였다. 추출한 DNA의 16S rDNA 염기서열 분석을 수행한 결과, 4호 인골에서 구축된 319개 클론은 ${\alpha}$, ${\beta}$, ${\gamma}$-Proteobacteria, Acidobacteria, Actinobacteria, Planctomycetes, Chloroflexi, Chlorobi, Bacteroidetes, Firmicutes 그리고 novel gene group 등 총 11개의 계통군이 확인되었다. 인골 주변 토양에서 구축된 462개 콜론은 ${\alpha}$, ${\beta}$, ${\gamma}$, ${\delta}$-Proteobacteria, Acidobacteria, Actinobacteria, Bacteroidetes, Verrucomicrobia, Planctomycetes, Chloroflexi, Chlorobi, Firmicutes, Thermodesulfobacteria, Fibrobacteres, Gemmatimonadetes, Verrucomicrobia 그리고 novel gene group 등 총 16개 계통군이 확인되었다. 5호 인골에서 구축된 271개 클론은 ${\alpha}$, ${\gamma}$-Proteobacteria, Acidobacteria, Actinobacteria, Planctomycetes, Chloroflexi, Bacteroidetes, Firmicutes 그리고 novel gene group 등 총 10개의 계통군이 확인되었으며, 인골 주변 토양에서 구축된 497개 클론은 ${\alpha}$, ${\beta}$, ${\gamma}$-Proteobacteria, Actinobacteria, Acidobacteria, Chloroflexi, Firmicutes, Gemmatimonadetes, Planctomycetes, Bacteroidetes 그리고 Verrucomicrobia 등 총 11개 계통군으로 확인되었다. 4호, 5호의 모든 시료에서 Actinobacteria 계통군이 가장 높은 비율을 차지하고 있으며, ${\alpha}$-Proteobacteria 계통군 또한 높은 비율을 차지하는 것으로 분석되었다. 인골은 주변 토양 세균의 군집에 의해 광범위하게 오염되어 있다는 것이 확인되었으며, 본 결과는 인골의 보존과 관리를 위한 중요 자료로 활용될 것이다.

• Korean Journal of Otorhinolaryngology-Head and Neck Surgery
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• 제60권8호
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• pp.390-395
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• 2017

Background and Objectives With increasing frequency of car accidents, patients of dizziness caused by car accidents are also increasing. Various types of dizziness or vertigo can occur from car accidents depending on different injury mechanisms. Since accurate diagnosis is important for providing proper treatments, we evaluated clinical characteristics related to vestibular function of patients with dizziness caused car accidents. Subjects and Method In this retrospective case review study that runs from January 2011 to March 2013, a total of 82 patients with dizziness following car accident were enrolled consecutively. We analyzed the final diagnosis of dizziness according to different mechanisms of injury during car accident through clinical record review. Patients who developed dizziness within one month of car accident were included, excluding those who had temporal bone fracture and previous history of dizziness. Results Of the different types observed, 36.6% was head injury, 24.4% whiplash injury, 3.7% complex injury, 2.4% others and the rest was unknown. In the final diagnosis, the different types included 36.6% benign paroxysmal positional vertigo (BPPV), 23.2% unclassifiable dizziness, 18.3% cervical vertigo, 7.3% labyrinthine concussion, 3.7% BPPV with labyrinthine concussion and the rest was others. Of the different types of dizziness symptoms, 58.5% was headache, 45.1% was audiologic symptoms, and others included earfullness, tinnitus and hearing disturbance. Tinitogram and pure tone audiogram results show that 2.9% (27 people) of patients have tinnitus and 7.3% (6 people) have hearing disturbance. Conclusion An accurate diagnosis and timely management would be very important in forming a proper approach for post traumatic vertigo patients.