• Title/Summary/Keyword: Color quality measure

Search Result 107, Processing Time 0.027 seconds

A Study of Physicochemical and Sensory Evaluation Properties on the Market Cheese Cake (시판 치즈 케익의 물리화학적, 관능적 특성에 관한 연구)

  • 김영훈;장영재;최희선;최수근
    • Culinary science and hospitality research
    • /
    • v.9 no.2
    • /
    • pp.22-32
    • /
    • 2003
  • The cheese cakes of three family restaurants (A, B, and q were compared for water activity, Brix, free sugar contents, color difference, viscosity, and sensory evaluation. The carbohydrate contents of cheese cake made in B is higher than the others. However, the products in C have the highest values for the crude protein contents. In viscosity, the products in C have the lowest values in cutting strength and compression strength. In order to measure the quality of cheese cake for different family restaurants, 83 undergraduate students were selected. It is found that they like the products in A better than those in Band C for aroma, sweetness, and taste. The results suggest that the taste is the most important factor for quality, and the aroma is the secondary effective factor.

  • PDF

Development portable hair removal applies PET ($Pause^{10-90}$ and $Energy^{20-40}$ $Trigger^{1-7}$) function

  • Kim, Whi-Young
    • Journal of information and communication convergence engineering
    • /
    • v.7 no.2
    • /
    • pp.223-230
    • /
    • 2009
  • For pulse trigger way and the energy injection rate according to PET ($Pause^{10-90}$ $Energy^{20-40}$ $Trigger^{1-7}$) function, indeed, human body condition, period of dormancy in this research about this back correctly adjustment possible and designed harmless micro carrying along style hair exclusion so that can design and manufacture and run special quality examination and Xenon flash lamp to crawl in human body. Because creating individual's skin model to do stable treatment by light transmission way by skin impedance and measure, must embody treatment special quality of most suitable that draw skin color, energy, wave length, approximately, transmission time, pulse delay etc. and want. Specially, saved standard of war treatment pulse modeling by skin impedance, and manufacture pulse modeling system of most suitable by skin subordinate, and embody suitable treatment pulse. Specially, embody as could do root of a hair exclusion being emitted in pulse form using multi wave length of 560nm, 590nm, 640nm, 755nm and embodied clinical data. If become research repletion furthermore little more, is seen that can approximate in commercialization.

Modified Jointly Blue Noise Mask Approach Using S-CIELAB Color Difference (S-CIELAB 색차를 이용한 개선된 혼합 블루 노이즈 마스크)

  • 김윤태;조양호;이철희;하영호
    • Journal of the Institute of Electronics Engineers of Korea SP
    • /
    • v.40 no.4
    • /
    • pp.227-236
    • /
    • 2003
  • This paper proposes a modified jointly-blue noise mask (MJBNM) method using the S-CIELAB color measure as digital color halftoning method. Based on an investigation of the relation between the pattern visibility and the chromatic error, of a blue noise pattern, a halftoning method is proposed that reduces the chromatic error, while preserving a high quality blue noise pattern. Accordingly, to reduce the chrominance error, the low-pass filtered error and S-CIELAB chrominance error are both considered during the mask generation procedure and calculated for single and combined patterns. Using the calculated low-pass filtered error, the patterns are then updated by either adding or removing dots from the multiple binary patterns. Finally, the pattern exhibiting the lower S-CIELAB chrominance error is selected. Experimental results demonstrated that the proposed algorithm can produce a visually pleasing half toned image with a lower chrominance error than the JBNM method.

Assessment of chemical purity of [13N]ammonia injection: Identification of aluminium ion concentration

  • Kim, Ho Young;Park, Jongbum;Lee, Ji Youn;Lee, Yun-Sang;Jeong, Jae Min
    • Journal of Radiopharmaceuticals and Molecular Probes
    • /
    • v.4 no.2
    • /
    • pp.80-84
    • /
    • 2018
  • $[^{13}N]$Ammonia or $[^{13}N]NH_3$ is one of the most widely used PET tracer for the measurement of MBF. To produce $[^{13}N]NH_3$, devarda's alloy which contains aluminum, copper and zinc is used for the purpose of reduction from $^{13}N$-nitrate/nitrite to $[^{13}N]NH_3$. Since aluminum has neurotoxicity and renal toxicity, the amount of it should be carefully limited for the administration to the human body. Although USP and EP provide a way to identify the aluminum ion concentration, there are some difficulties to perform. Therefore, we tried to develop the modified method for verifying aluminum concentration of test solution. We compared color between test and standard solutions using chrome azurol S in pH 4.6 acetate buffer. We also tested color change of test and standard solutions according to pH, amounts and the order of reagent and time difference These results demonstrated that the color change of the solution can reflect quantitatively measure aluminum ion concentration. We hope the method is to be used effectively and practically in many sites where $[^{13}N]NH_3$ is produced.

Image Quality Assessment Model of Natural Scene Based on Normal Distribution Analysis (일반 장면의 정규분포 분석을 기반으로 한 화질 측정 모형)

  • Park, Hyung-Ju;Har, Dong-Hwan
    • Science of Emotion and Sensibility
    • /
    • v.16 no.3
    • /
    • pp.373-386
    • /
    • 2013
  • In this research, we specify the image consumers' preferred image quality ranges based on objective image quality evaluation factors and follow a method which measures preference of the natural image scenes. In other words, according to No-Reference, we select dynamic range, color, and contrast as factors of image quality measurements. For collecting sample images, we choose the preferred 200 landscapes which have over 30 recommendations by image consumers on the internet photo gallery. According to the scores of three objective factors of image quality measurements, the final expected score which means the image quality preference is measured and its total score is 100 points. In the main test, the actual image sample shows dynamic range 10 stop, LAB mean value L:54.7, A:2.96, B:-15.84, and RSC contrast 376.9. Total 200 image samples' normal distribution z value represents in dynamic range 0.21, LAB mean value L:0.15, A:0.38, B:0.13, and RSC contrast 0.08. In the standard normal distribution table, we can convert the z value as a percentage; dynamic range is 8.32%, LAB mean value is L:5.96%, A:14.8%, B:5.17%, and RSC contrast is 3.19%. And then, we convert the percentage values into the scores of 100; dynamic range is 91.68, LAB mean value is 91.36, and RSC contrast is 96.81. Therefore, we can conclude that the sample image's total mean score is 94.99 based on three objective image quality factors. Throughout our proposed image quality assessment model, we can measure the preference value of natural scenes. Also, we can specify the preferred image quality representation ranges and measure the expected image quality preference.

  • PDF

The Ratios of Pre-emulsified Duck Skin for Optimized Processing of Restructured Ham

  • Shim, Jae-Yun;Kim, Tae-Kyung;Kim, Young-Boong;Jeon, Ki-Hong;Ahn, Kwang-Il;Paik, Hyun-Dong;Choi, Yun-Sang
    • Food Science of Animal Resources
    • /
    • v.38 no.1
    • /
    • pp.162-171
    • /
    • 2018
  • The purpose of this study was to investigate the quality of duck ham formulated with duck skin through the pre-emulsification process. The experiments to investigate the quality characteristics of duck ham were carried out to measure proximate composition, cooking loss, emulsion stability, pH, color, texture profile analysis, apparent viscosity, and sensory characteristics. Duck ham was prepared with various ratios of duck skin in pre-emulsion as follows: Control (duct skin 30%), T1 (duck skin 20% + pre-emulsified duck skin 10%), T2 (duck skin 15% + pre-emulsified duck skin 15%), T3 (duck skin 10% + pre-emulsified duck skin 20%), and T4 (pre-emulsified duck skin 30%). As the ratio of duck skin to pre-emulsified skin changed, the quality of duck ham in terms of moisture content, fat content, cooking loss, emulsion stability, lightness, textural analysis, apparent viscosity, and overall acceptability changed. The moisture content of T2 was the highest (p<0.05) and that of the control and T4 was the lowest (p<0.05). The fat content of control was higher than all treatments (p<0.05). T2 had the lowest values in cooking loss, total expressible fluid, fat separation, hardness, springiness, and gumminess (p<0.05). The score of overall acceptability of all treatments with pre-emulsified skin was higher than control (p<0.05). Therefore, the pre-emulsification process can improve the quality characteristics of duck ham and 1:1 ratio of duck skin and pre-emulsified skin was the proper ratio to improve the quality characteristics of duck ham.

The Quality Characteristics and Hypoglycemic Effect of Cookies Containing Helianthus tuberosus Powder (돼지감자 분말 첨가 쿠키의 품질특성 및 혈당에 미치는 영향)

  • Park, Hwa Yeon;An, Na Young;Ryu, Ho Kyung
    • The Korean Journal of Community Living Science
    • /
    • v.24 no.2
    • /
    • pp.233-241
    • /
    • 2013
  • This study was conducted to evaluate the quality characteristics and the hypoglycemic effect of cookies containing Helianthus tuberosus powder (HTP). To examine the effect of adding HTP, cookies with various HTP contents (0%, 10%, 20%, 30%, 40%) were made and compared for their quality characteristics. The pH of cookie doughs decreased significantly (p<0.05) as the content of HTP increased. However, the density did not show significant difference among samples. The spread ratio and loss rate in cookies showed significant increase (p<0.05) as the content of HTP increased. However the leavening rate and the hardness of the cookies decreased significantly (p<0.05) when HTP content increased. Color measurement also showed significant difference among samples, although the cookie sample with 10% HTP powder showed the highest scores from consumer tests and liking score, the cookie samples with 30% HTP were selected to measure the hypoglycemic effect of Helianthus tuberosus compared to control cookies and bread. Ten healthy subjects in their twenties participated in measuring blood glucose levels after intake of bread, control cookie, or 30% HTP cookie. Blood glucose level was measured after fasting 12 hours, before eating, and 30, 60, 90, and 120 minutes after taking the samples. As a result, the blood glucose levels at 30min after meals showed significant (p<0.05) difference among treatments: the lowest when taken the cookies added 30% HTP. However there was no difference in the blood glucose levels at 60min, 90min, and 120min after the sampling.

A Spectrophotometric Study on Color Differences between Various Light-Cured Composite Resins and Shade Guides (광중합형 복합레진과 shade guide의 색차에 관한 연구)

  • Lim, Kyung-Min;Lee, Min-Ho;Song, Kwang-Yeob
    • Journal of Dental Rehabilitation and Applied Science
    • /
    • v.25 no.1
    • /
    • pp.13-22
    • /
    • 2009
  • The composite resin, due to its esthetic quality, is considered the material of choice for restoration of anterior teeth. To get a satisfactory result in the composite resin restorations, it is necessary to choose right shade. At present, most of the commercial composite resins are based on the Vita Lumin shade guides or shade guides that are provided by their company, but color differences among them might be expected even using the same shade in various materials. This study is to measure color differences between various light-cured composite resins and shade guides and to provide the clinicians with information which may aid in improved color match of esthetic restoration. Four kinds of light-cured composite resins (Gradia Direct (GD), Z250 (Z250), Clearfil AP-X (AP-X), Esthet X (E X)) and shade guides with A2 and A3 shade were used. Three specimens of each material and one specimen of each shade guide were made. Each composite resin was filled into the Teflon mold (1.35 mm depth, 8 mm diameter), followed by compression, polymerization and polishing with wet sandpaper. Shade guides were grinded with polishing stones and rubber points to a thickness of approximately 1.35 mm. Color characteristics were performed with a spectrophotometer(color i5, GretagMacbeth, USA). A computer-controlled spectrophotometer was used to determine CIELAB coordinates ($L^*$, $a^*$, $b^*$) of each specimen and shade guide. The CIELAB measurements made it possible to evaluate the amount of the color difference values (${\Delta}E^*ab$) between composite resins and shade guides. CIE standard D65 was used as the light source. The results were as follows : 1. Among the $L^*$, $a^*$, $b^*$ values of most of 4 kinds of composite resin specimens which are produced by same shade, there were significant differences(p<0.05). 2. Among all 4 kinds of composite resin specimens which are produced by same shade, there were color differences that is perceptible to human eye(${\Delta}E^*>3.3$). 3. Between most of composite resin specimens investigated and their corresponding shade guides, there were color differences that is perceptible to human eye(${\Delta}E^*>3.3$). 4. In the clinical environment, it is recommended that custom shade guides be made from resin material itself for better color matching. Shade guides supplied by manufacturers or Vita Lumin shade guide may not provide clinicians a accurate standard in matching color of composite resins, and there are perceptible color differences in most of products. Therefore, it is recommended that custom shade guides be made from resin material itself and used for better color matching.

Changes in Respiratory and Quality Characteristics of 'Tsugaru' Apple by Storage Temperature (저장온도에 따른 '쓰가루' 사과의 호흡 및 품질특성 변화)

  • Park, Hyung-Woo;Park, Jong-Dae;Hong, Seok-In;Kim, Dong-Man
    • Food Science and Preservation
    • /
    • v.7 no.2
    • /
    • pp.133-138
    • /
    • 2000
  • The research was conducted to measure the effect of temperature on respiratory and quality characteristics of 'Tsugaru' apple(Malus domestica Borkh) during storage at 4$^{\circ}$C, 10$^{\circ}$C and 20$^{\circ}$C. Respiration rate of the apple just after harvest was 7.57 mL CO$_2$/kg/h at 20$^{\circ}$C. It was decreased rapidly and was 2.86 mL CO$_2$/kg/h after storage for 45 days at 20$^{\circ}$C. The apples showed the highest ethylene production rate at 10$^{\circ}$C and 20$^{\circ}$C after 14 days, and at 4$^{\circ}$C after 28 days during storage. Weight of the apple was reduced by 2.9% after 120 days at 4$^{\circ}$C and by 6.1% after 45 days at 20$^{\circ}$C. Color difference of peel and pH increased with the temperatures but titratable acidity and flesh firmness showed the reverse trends during storage. According to the subjective quality test, it could be suggested that the shelf-life of the apple is 86 days at 4$^{\circ}$C, 65 days at 10$^{\circ}$C and 37 days at 20$^{\circ}$C, respectively.

  • PDF

Validation of the semi-analytical algorithm for estimating vertical underwater visibility using MODIS data in the waters around Korea

  • Kim, Sun-Hwa;Yang, Chan-Su;Ouchi, Kazuo
    • Korean Journal of Remote Sensing
    • /
    • v.29 no.6
    • /
    • pp.601-610
    • /
    • 2013
  • As a standard water clarity variable, the vertical underwater visibility, called Secchi depth, is estimated with ocean color satellite data. In the present study, Moderate Resolvtion Imaging Spectradiometer (MODIS) data are used to measure the Secchi depth which is a useful indicator of ocean transparency for estimating the water quality and productivity. To estimate the Secchi depth $Z_v$, the empirical regression model is developed based on the satellite optical data and in-situ data. In the previous study, a semi-analytical algorithm for estimating $Z_v$ was developed and validated for Case 1 and 2 waters in both coastal and oceanic waters using extensive sets of satellite and in-situ data. The algorithm uses the vertical diffuse attenuation coefficient, $K_d$($m^{-1}$) and the beam attenuation coefficient, c($m^{-1}$) obtained from satellite ocean color data to estimate $Z_v$. In this study, the semi-analytical algorithm is validated using temporal MODIS data and in-situ data over the Yellow, Southern and East Seas including Case 1 and 2 waters. Using total 156 matching data, MODIS $Z_v$ data showed about 3.6m RMSE value and 1.7m bias value. The $Z_v$ values of the East Sea and Southern Sea showed higher RMSE than the Yellow Sea. Although the semi-analytical algorithm used the fixed coupling constant (= 6.0) transformed from Inherent Optical Properties (IOP) and Apparent Optical Properties (AOP) to Secchi depth, various coupling constants are needed for different sea types and water depth for the optimum estimation of $Z_v$.