• 제목/요약/키워드: Emerald

검색결과 60건 처리시간 0.024초

저관리 용기일체형 벽면녹화에서 황금줄사철과 송악의 초기활착에 미치는 친수성 중합체의 효용성 (Effect of Hydrophilic Polymer on Early Stages of Plant Growth of Euonymus fortunei 'Emerald and Gold' and Hedera japonica in a Vertical Greenery System for Low Maintenance)

  • 주진희;김혜란;허혜;김원태;최은영;윤용한
    • 한국환경복원기술학회지
    • /
    • 제19권3호
    • /
    • pp.1-9
    • /
    • 2016
  • The objective of this study was to exam early stages of plant growth of Euonymus fortunei 'Emerald and Gold' and Hedera japonica grown in fabric felt bag attached on vertical greenery system with the ratio of hydrophilic polymer to substrate, 0(referred as Control), 0.1, 0.2, or 0.4% (v/v), in order to effectively utilize rainfall for low maintenance. After rainfall, the increase in volumetric water content of substrate amended with the hydrophilic polymer was between 13% and 87%, compared to that in Control. During drought period, higher ratio of hydrophilic polymer to substrate slowly decreased the volumetric water content, and increased plant height, leaf length, leaf width, number of leaves, branch number, and stem diameter of both Euonymus fortunei 'Emerald and Gold' and Hedera japonica with the highest fresh and dry weights of shoots or roots under the 0.1% ratio of hydrophilic polymer.

V의 고용이 Malayaite의 결정 및 발색에 미치는 영향 (Effect of V-doping on Colour and Crystallization of Malayaite Pigments)

  • 주인돈;이병하
    • 한국세라믹학회지
    • /
    • 제47권4호
    • /
    • pp.302-307
    • /
    • 2010
  • This study aims to synthesize emerald-green malayaite pigments using $CaCO_3$, $SiO_2$, $SnO_2$ and $V_2O_5$. For this purpose, the optimum composition is $CaV_{0.25}Sn_{0.687}SiO_5$ and heating condition is at $1250^{\circ}C$ for 6 h of soaking time. The samples were characterized by X-ray diffraction (XRD), the Fourier Transform Infrared Spectrometers(FT-IR), the Raman Spectrometer, Scanning Electron Microscope(SEM) and the UV/Vis spectroscopy. The substituted V ion for Sn was observed to be quadrivalence. The analytical results of the synthesized pigment showed the tetragonal crystal, a typical form of Malayaite, and the particle size to be approximately $5{\sim}10\;{\mu}m$. The color in lime glaze added 12 wt% pigment was emerald green, and CIE Lab parameters are $L^*=67.73$, $a^*=-12.39$ and $b^*=9.28$.

천연베릴을 이용한 온도구배 환류법에 의한 합성 Emerald 단결정 육성 (Single crystal growth of syntheric emerald by reflux method of temperatute gradient using natural beryl)

  • 최의석;김무경;안영필;서청교;안찬준;이종민
    • 한국결정성장학회지
    • /
    • 제8권4호
    • /
    • pp.532-538
    • /
    • 1998
  • 한국산 천연베릴을 잉요하여 온도구배융제환류법에 의해 에메랄드($3BeO{\cdot}Al_2O_3{\cdot}6SiO_2:Cr^{3+}$) 단결정이 성장되었다. 리튬-몰리브데늄-바나디움 산화물계 융제는 $(MoO_3+V_2O_5)/Li_2O$, 와 $V_2O_5-Li_2O$를 서로 다르게 용융한 2종류의 융제를 혼합하여 제조하였다. 융제의 최적 조성은 산화몰리브데늄.바나디움에 대한 산화리튬의 몰비($(MoO_3+V_2O_5)/Li_2O$)가 3몰이었고 융제첨가제는 Li2O량에 대하여 $K_2O$ 또는 $Na_2O$를 0.2mole% 이내로 치환하였다. 베릴원료의 용융 농도는 융제량에 대하여 3~10% 함량이었고, $Cr_2O_3$ 발색제는 베릴량에 대하여 1%이었다. 융액은 용융, 성장, 회수 블록으로 나뉘어진 3지대 온도구배 결정성장로에서, $1100^{\circ}C$$1000^{\circ}C$ 사이의 안정상태에서 연속적으로 순환되도록 하였다. 에메랄드 단결정은 성장지대에서 950~$1000^{\circ}C$ 구간에서 1일 1회 2시간동안 열진동 처리하였을 때 미소핵의 생성이 억제된 대형 단결정을 성장시킬 수 있었다. 육각주상 에메랄드 단결정의 우선성장방향은 c(0001) 바닥면이었고, m(1010) 기둥면에 수직이었다.

  • PDF

미국 JC Raulston 식물원에 식재된 한국자생 조경수목

  • 서병기
    • 한국자원식물학회:학술대회논문집
    • /
    • 한국자원식물학회 1999년도 춘계임시총회 및 학술발표대회
    • /
    • pp.48-50
    • /
    • 1999
  • 미국 J.C. Raulston 식물원에는 한국자생 조경수목 36과 110종 3품종이 재배되고 있다. 이중 때죽나무 'Emerald Pagoda' 신품종은 1985년 미국 국립식물원 식물탐사팀과 J.C Raulston이 소흑산도에서 꽃이 많고 잎이 크고 두꺼운 신품종으로 등록한 우리나라 자생종으로 미국내에서 감상가치가 매우 뛰어난 것으로 평가 받고 있다. J.C. Raulston은 이 때죽나무를 품종명 'Sohuksan'이라고 명명하였다가 'Emerald Pagoda'로 개칭하였다. Raulston은 소흑산 때죽나무를 수화물에 보관하여 미국에 도입했다. 도한 아왜나물를 진도에서 채집하였는데, 이것은 지금도 'Chindo'라는 품종으로 불이고 있으며 미구내 동남부 지바으이 조경에 적응성이 높고 감상가치가 높아 대량번식 및 보급 중에 있다.

  • PDF

인클루시브 디자인 개념을 적용한 Emerald Princess호의 편의 지향 설계 (Convenience-Oriented Design of the Emerald Princess Cruise by Applying the Inclusive Design Concept)

  • 송에스더;노명일
    • 한국실내디자인학회논문집
    • /
    • 제21권1호
    • /
    • pp.269-279
    • /
    • 2012
  • According to a progress in the quality of life and economy, recent years have seen an increase in interest in the cruise travel. However, it is important to provide them the optimum embarkation environment since there are to be many and unspecified persons staying for a long period on the cruise ship. In the architectural design field, a wide range of efforts are being recently made to meet customer's requirements by considering the rapidly changing society, environment, and economic trend. The most representative one of such efforts is the inclusive design concept. This concept means to perform design satisfying all the function, convenience, aesthetic appreciation, and utility, regardless of sex, age, ability, nationality, cultural background or any kinds of disabilities. Regarding this trend, the convenience-oriented design of a cruise ship using the inclusive design concept was performed in this study. To do this, the composition of cabins and swimming pools, and the exterior of the cruise ship were classified into several groups through literature survey. Then, in the point of view of the inclusive design concept, inconvenience matters of passengers about the cabins, swimming pools, and exterior were also extracted from literature survey. Next, basis designs for them were selected among the classified groups in order to solve such inconvenience matters. Finally, the convenience-oriented design of the Emerald Princess Cruise considering the inclusive design concept was performed by applying the basis designs. As a result, we can see that the inclusive design concept can be applied to cruise ship design.

  • PDF

Comparing the accuracy of six intraoral scanners on prepared teeth and effect of scanning sequence

  • Diker, Burcu;Tak, Onjen
    • The Journal of Advanced Prosthodontics
    • /
    • 제12권5호
    • /
    • pp.299-306
    • /
    • 2020
  • PURPOSE. The aim of this study was to evaluate the accuracy of six recently introduced intraoral scanners (IOSs) for single crown preparations isolated from the complete arch, and to determine the effect of scanning sequence on accuracy. MATERIALS AND METHODS. A complete arch with right and left canine preparations for single crowns was used as a study model. The reference dataset was obtained by scanning the complete arch using a highly accurate industrial scanner (ATOS Core 80, GOM GmbH). Six different IOSs (Trios, iTero, Planmeca Emerald, Cerec Omnicam, Primescan, and Virtuo Vivo) were used to scan the model ten times each. The scans performed with each IOS were divided into two groups, based on whether the scanning sequence started from the right or left quadrant (n=5). The accuracy of digital impression was evaluated using three-dimensional analyzing software (Geomagic Studio 12, 3D Systems). The Kruskal Wallis and Mann- Whitney U statistical tests for trueness analysis and the One-way ANOVA test for precision analysis were performed (α=.05). RESULTS. The trueness and precision values were the lowest with the Primescan (25 and 10 ㎛), followed by Trios (40.5 and 11 ㎛), Omnicam (41.5 ㎛ and 18 ㎛), Virtuo Vivo (52 and 37 ㎛), iTero (70 and 12 ㎛) and Emerald (73.5 and 60 ㎛). Regarding trueness, iTero showed more deviation when scanning started from the right (P=.009). CONCLUSION. The accuracy of digital impressions varied depending on the IOS and scanning sequence used. Primescan had the highest accuracy, while Emerald showed the most deviation in accuracy for single crown preparations.

Effect of posterior span length on the trueness and precision of 3 intraoral digital scanners: A comparative 3-dimensional in vitro study

  • Fattouh, Mohamed;Kenawi, Laila Mohamed Mohamed;Fattouh, Hesham
    • Imaging Science in Dentistry
    • /
    • 제51권4호
    • /
    • pp.399-406
    • /
    • 2021
  • Purpose: This in vitro study measured and compared 3 intraoral scanners' accuracy (trueness and precision) with different span lengths. Materials and Methods: Three master casts were prepared to simulate 3 different span lengths (fixed partial dentures with 3, 4, and 5 units). Each master cast was scanned once with an E3 lab scanner and 10 times with each of the 3 intraoral scanners (Trios 3, Planmeca Emerald, and Primescan AC). Data were stored as Standard Tessellation Language (STL) files. The differences between measurements were compared 3-dimensionally using metrology software. Data were analyzed using 1-way analysis of variance with post hoc analysis by the Tukey honest significant difference test for trueness and precision. Statistical significance was set at P<0.05. Results: A statistically significant difference was found between the 3 intraoral scanners in trueness and precision (P<0.05). Primescan AC showed the lowest trueness and precision values(36.8 ㎛ and 42.0 ㎛;(39.4 ㎛ and 51.2 ㎛; and 54.9 ㎛ and 52.7 ㎛) followed by Trios 3 (38.9 ㎛ and 53.5 ㎛; 49.9 ㎛ and 59.1 ㎛; and 58.1 ㎛ and 64.5 ㎛) and Planmeca Emerald (60.4 ㎛ and 63.6 ㎛; 61.3 ㎛ and 69.0 ㎛; and 70.8 ㎛ and 74.3 ㎛) for the 3-unit, 4-unit, and 5-unit fixed partial dentures, respectively. Conclusion: Primescan AC had the best trueness and precision, followed by Trios 3 and Planmeca Emerald. Increasing span length reduced the trueness and precession of the 3 scanners; however, their values were within the accepted successful ranges.

예측 도구를 활용한 비외상성 거미막밑출혈 환자의 병원 전 기록 분석 (Analysis of pre-hospital records of patients with non-traumatic subarachnoid hemorrhage using prediction tools)

  • 김용준;심경율;이경열
    • 한국응급구조학회지
    • /
    • 제26권2호
    • /
    • pp.7-18
    • /
    • 2022
  • Purpose: This study aimed to develop a pre-hospital subarachnoid hemorrhage (SAH) prediction tool by analyzing the extant predictive factors of patients with non-traumatic SAH who visited the hospital through the 119 emergency medical services. Methods: We retrospectively reviewed pre-hospital care reports (PCRs) and electronic medical records (EMRs) of 103 patients with non-traumatic SAH who were transported to the emergency department of two national hospitals via the 119 emergency medical service from January 1, 2017 to December 31, 2020. Variables required to apply the Ottawa SAH Rule and EMERALD SAH Rule, which are early prediction tools for SAH, were extracted and applied. Results: The most common symptoms-which were found in 94.1% and 97.0% of all patients according to PCRs and EMRs, respectively-appeared in the following order: headache, altered state of consciousness, and nausea/vomiting. When the variables used for the EMERALD Rule, namely systolic blood pressure (SBP), diastolic blood pressure (DBP), and blood sugar test (BST), were applied, the sensitivities of EMR and PCRs were 99.9% and 92.2%, respectively. Conclusion: For the timely prediction of SAH at the pre-hospital phase, patient age and symptoms should be assessed, and SBP, DBP, and BST should be measured to transport the patient to an appropriate hospital.

19~20세기 무신도 등에 사용된 구리-비소 녹색 안료에 대한 연구 (Study on the Copper-Arsenic Green Pigments used on Shamanic Paintings in the 19~20th century)

  • 오준석;최정은;최윤희
    • 보존과학회지
    • /
    • 제31권3호
    • /
    • pp.193-214
    • /
    • 2015
  • 19~20세기 83점의 무신도 등의 녹색 안료를 형광X선분광기, 주사전자현미경, 적외선분광광도계를 이용하여 분석하였다. 형광X선분광기에 의한 성분 분석 결과 60점에서 구리와 비소가 검출되었다. 복개당 무신도와 삼국지연의도의 구리와 비소 강도 비 Cu $K{\alpha}$/As $K{\beta}$는 5.93~12.04로 표준 에메랄드 그린 5.67~6.26, 나머지 무신도 4.01~7.89에 비해 높아 셸레즈 그린으로 추정되었다. 형광X선분광기 분석에서 구리와 비소가 검출된 녹색 안료에서는 다양한 형태의 결정이 관찰되었다. 대부분의 무신도에서는 판상의 결정이 성장한 타원형이나 원형 구정이 관찰되었지만, 복개당 무신도와 삼국지연의도에서는 판상의 결정이 빽빽하게 채워진 원형 구정만이 존재하였다. 적외선분광광도계로 구리-비소 녹색 안료를 분석한 결과, 복개당 무신도와 삼국지연의도는 셸레즈 그린이 동정되었고, 나머지 무신도에서는 에메랄드 그린이 동정되었다. 분석 결과로부터 복개당 무신도 및 삼국지연의도에는 녹색 안료로 셸레즈 그린이 사용되었고 제작 연대는 1850년대~1870년대로 추정되며, 에메랄드 그린은 19세기 후기 이후부터 1970년까지 제작된 무신도에서 녹색 안료로써 광범위하게 사용된 것이 확인되었다.

제주지역에서의 무가온 하우스재배에 적합한 아티초크 품종 선발 (Selection of Artichoke (Cynara scolymus L.) for N on-Heated Cultivation in Jeju Island)

  • 성기철;김천환;이진수;엄영철;강경희
    • 생물환경조절학회지
    • /
    • 제17권4호
    • /
    • pp.293-296
    • /
    • 2008
  • 제주에서 무가온 하우스 재배에 적합한 아티초크 품종을 선발코자 'Purple Romagna', 'Imperial Star', 'Green Globe', 'Emerald', 'Italian', 'Carciofo Di Romagna' 품종을 시험재료로 이용하였다. 2004년 10월 5일에 본엽 4매 정도 자란 묘를 무가온 하우스내에 정식하였다. 첫 수확은 이듬해 봄 4월 하순경부터 시작되었는데 첫 수확일은 'Emerald'와 'Imperial Star'가 4월 26일과 27일로 빨랐으며, 대체로 수확은 5월 상순경부터 시작되어 6월 하순까지 가능하였다. 주당 수확 화뢰수는 'Green Globe'가 5.4개 이상으로 가장 많았으며 'Italian께서 1.3개 정도로 가장 적었다. 평균 화뢰무게는 'Imperial Star', 'Green Globe', 'Purple Romagna'에서 $228{\sim}288g$ 정도로 비슷하였다. 10a당 수량은 'Green Globe께서 2,172kg으로 가장 많았으며, 다음이 'Imperial Star'에서 1,947kg이었다. 따라서 난지지역인 제주도에서 아티초크의 무가온 하우스재배에는 수량면에서 'Green Globe'및 'Imperial Star'가 적합할 것으로 판단되며, 10월에 정식하여 재배할 경우 이듬해 4월 하순부터 6월까지 수확할 수 있다.