A Study on Mineralogical Characteristic and Accelerated Weather Test of Red and Yellow Color Natural Inorganic Pigments

2019 ◽  
Vol 32 (4) ◽  
pp. 259-271
Author(s):  
Ju Hyun Park ◽  
Hye Yeong Jeong
Keyword(s):  
Inorganic Pigments ◽  
Yellow Color ◽  
Mineralogical Characteristic

Enhanced Electroluminescence of Urethane Containing Processable Polythiophene Derivative by Addition of Dye Molecules

2000 ◽  
Vol 660 ◽  
Author(s):  
Amarjeet Kaur ◽  
Mario J. Cazeca ◽  
Kethinni G. Chittibabu ◽  
Jayant Kumar ◽  
Sukant K. Tripathy
Keyword(s):  
Fluorescent Dyes ◽  
Visible Region ◽  
Dye Molecules ◽  
Flat Panel Display ◽  
Large Area ◽  
Good Efficiency ◽  
Display Devices ◽  
Yellow Color ◽  
Organic Electroluminescent ◽  
Important Approach

ABSTRACTOrganic electroluminescent (EL) diodes based on fluorescent dyes and conducting polymers have attracted the interest of researchers, mainly because of their emission in the visible region and for application to large area portable flat panel display devices, driven at low voltages. Therefore, for the development of higher efficiency polymer EL diodes, the optimal combination of the merits of organic fluorescent dye molecules with that of conjugated polymer is an important approach. We report electroluminescence studies of polymer light emitting diodes (p-LEDs) fabricated with poly[2-(3-thienyl)ethanol n-butoxy carbonylmethyl urethane] (PURET) and its composite with 4-dicyanomethylene-2-methyl-6-(p-dimethylaminostyryl)-4H pyran (DCM) dye. These materials have been chosen in view of the fact that PURET exhibits a small overlap between emission and absorption spectra whereas DCM has a good efficiency of trapping both electrons as well as holes. Polyaniline has been utilized as hole injecting layer whereas tris-8-hydroxyquinoline-aluminum as electron injecting layer. Enhanced electroluminescence with bright yellow color has been observed in p-LEDs by the addition of dye.

Investigate of the Ability of Cronobacter sakazakii Isolated from Clinical Samples of Children Under Two Years to Induce Swimming, Swarming and Biofilm

2018 ◽  
pp. 123
Author(s):  
Luma Abdal Hady Zwein ◽  
Tharieyt Abdulrahman Motlag ◽  
Mohamed Mousa
Keyword(s):  
Cerebrospinal Fluid ◽  
Congo Red ◽  
Biofilm Formation ◽  
Microtiter Plate ◽  
Clinical Samples ◽  
Cronobacter Sakazakii ◽  
Yellow Color ◽  
Golden Yellow ◽  
Vitek 2 ◽  
Biochemical Examination

      The study included 200 samples were collected   from   children  under two   years included (50 samples from each of Cerebrospinal fluid, Blood, Stool and Urine) from, Central Children Hospital and Children's Protections Educational Hospital. Isolates bacterial were obtained cultural, microscopic and biochemical examination and diagnosed to the species by using vitek2 system. The results showed there were contamination in 6.5% of clinical samples. The diagnosed colonies which gave pink color on the MacConkey agar , golden yellow color on the Trypton Soy agar and green color on the Birillent Enterobacter sakazakii agar and gave  a probability of 99% in the vitek 2 and were identified as Cronobacter sakazakii. The identification revealed of thirteen isolates: 6(46.16%) isolated from Cerebrospinal fluid samples, 7(53.84%) isolated from blood samples and not isolated bacteria from stool and urine samples. The results of the investigation of some virulence factors showed that all bacteria isolates were able to swimming with a diameter ranging (1-9 mm) and swarming with a diameter ranging (1-40 mm) and their  ability to biofilm formation  by using three methods. The results show the ability  of  isolates to form biofilm by using  Congo red media  methods where it is 12 (92.30 %) out of 13 isolated bacteria belonging to C. sakazakii  able to form biofilm on the Congo red media  which is 3 (23.07%) were  strong production  biofilm ,   8 (61.53%)  were intermediate  production  biofilm and  1 (7.69% ) were weak  biofilm formation , while the 1 (7.69%)  unable to form biofilm.  Tubes method were all isolates were able to form biofilm, it were found that 3 (23.07%)  isolates strong, and 8 (61.53%) intermediate  and 2( 15.38%)  weak biofilm formation. Microtiter plate method  gave 5 (38.46 %) isolates strong, 6 (46.15%) intermediate and 1 (7.69%) weak biofilm formation.  

Combination of Carbonated Aloe Vera Drink with Lemon Juice

2019 ◽  
Vol 5 (2) ◽  
Author(s):  
Jefrianta Demu Geri ◽  
Dewi Fortuna Ayu ◽  
Noviar Harun
Keyword(s):  
Vitamin C ◽  
Aloe Vera ◽  
Sweet Taste ◽  
Total Dissolved Solids ◽  
Lemon Juice ◽  
Dissolved Solids ◽  
Combination Treatments ◽  
Randomized Design ◽  
Yellow Color ◽  
Range Test

The purpose of this study was to determine the optimal ratio of carbonated aloe vera drink and lemon juice. This research used completely randomized design with four treatments and four replications. The treatments performed were L1 (90% carbonated aloe vera and 10% lemon juice), L2 (80% carbonated aloe vera and 20% lemon juice), L3 (70% carbonated aloe vera and 30% lemon juice), and L4 (60% carbonated aloe vera and 40% lemon juice). Data were statistically analyzed by using analysis of variance (ANOVA) and followed by duncan new multiple range test (DNMRT) at level 5%. The combination treatments of carbonated aloe vera drinks and lemon juice had a significant effect on acidity (pH), vitamin C, total dissolved solids, and descriptive and hedonic sensory assessment. The best treatment from the research was L3 (70% carbonated aloe vera and 30% lemon juice) with pH of 4.26, vitamin C of 19.97 mg, and total dissolved solids of 14.34°brix. The overall sensory test result preferred by panelists with descriptions of yellow color, lemon flavor, and had a slightly sweet taste.

scholarly journals The Effect of the Addition of Fiber Preparations on the Color of Medium-Grounded Pasteurized and Sterilized Model Canned Meat Products

Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2247
Author(s):  
Mirosław Słowiński ◽  
Joanna Miazek ◽  
Krzysztof Dasiewicz ◽  
Marta Chmiel
Keyword(s):  
Meat Product ◽  
Meat Products ◽  
Quality Characteristics ◽  
Consumer Acceptance ◽  
Meat Industry ◽  
Industrial Practice ◽  
Yellow Color ◽  
Hue Angle ◽  
Canned Meat ◽  
Color Components

A beneficial aspect of the use of fiber preparations in the meat industry is the improvement of some quality characteristics of meat products. However, the preparation added in the amount of 3 or 6% may affect their color. The effect of the addition of barley, wheat and oat fiber preparations with different fiber lengths, in quantities allowing the product to be indicated as “high in fiber” or “source of fiber”, to pasteurized or sterilized medium-grounded canned meat products on their color, was determined. In the obtained canned meat products, the basic chemical composition and the L*, a* and b*, C* (Chroma) and h* (hue angle) color components were determined. The addition of the barley fiber preparation BG 300 to the model canned meat products caused a significant (p ≤ 0.05) darkening and an increase in the proportion of yellow color. In an industrial practice, this may result in poorer consumer acceptance of the meat product. Fiber length of wheat and barley fiber had no effect on the color components of products. The 6% addition of the wheat fiber preparations WF 200R and WF 600R or the oat fiber preparations HF 200 and HF 600 caused an apparent lightening of their color (ΔE > 2) compared to the control products.

scholarly journals OPTIMASI KONSENTRASI SETIL ALKOHOL SEBAGAI AGEN PENGENTAL PADA FORMULA KRIM EKSTRAK RIMPANG KUNYIT (Curcuma domestica)

2018 ◽  
pp. 40
Author(s):  
I Gusti Ayu Nadia Prasta Unique
Keyword(s):  
Wound Healing ◽  
Cetyl Alcohol ◽  
Organoleptic Evaluation ◽  
Power Test ◽  
Brownish Yellow ◽  
Turmeric Extract ◽  
Yellow Color ◽  
Oil In Water ◽  
Dispersing Ability ◽  
Good Homogeneity

ABSTRAK Penelitian ini betujuan untuk memformulasikan krim dari ekstrak rimpang kunyit (Curcuma domestica Val.) untuk memperoleh sediaan yang stabil sebagai krim obat luka dengan variasi konsentrasi setil alkohol sebagai agen pengental. Dalam penelitian ini krim diformulasikan dengan variasi konsentrasi setil alkohol F I (4%), F II (7%), dan F III (10%). Evaluasi fisik sediaan krim yang dilakukan meliputi evaluasi organoleptis, homogenitas, daya lekat, daya sebar, pH, tipe krim, dan viskositas. Hasil uji menunjukkan ketiga formula menghasilkan krim berwarna warna kuning jingga kecoklatan, bau khas kunyit, dan sediaan dengan tekstur krim semisolid, memiliki homogenitas yang baik, kemampuan menyebar yang baik, pH sediaan yaitu 5,86; 5,66; 4,68 dan tipe emulsi M/A (Minyak dalam Air). Hasil uji viskositas menunjukkan FII dan FIII memiliki viskositas yang sesuai dengan persyaratan. Uji daya lekat menunjukkan bahwa ketiga formulasi krim belum memenuhi persyaratan daya lekat sediaan topikal yang baik. ABSTRACT This study aims to formulation creams from turmeric extract (Curcuma domestica Val.) to obtain stable preparations as a wound healing cream in the variations concentration of cetyl alcohol as a stiffening agent. In this study, the cream was formulated with variations concentration of cetyl alcohol F 1 (4%), F II (7%), and F III (10%). The formulation were evaluated basen on several parameter, that are organoleptic evaluation, homogeneity, adhesion, dispersion, pH, cream type, and viscosity. The evaluation showed that the three formulas produced cream with a brownish-yellow color, a distinctive smell of turmeric, and preparations with a semisolid cream texture, had good homogeneity, good dispersing ability, pH of the preparation namely 5.86; 5.66; 4,68 and type M / A emulsions (Oil in Water). The results of the viscosity test showed that FII and FIII has viscosity that is suitable with the requirements. The sticky power test showed that all cream formulations does not suitable with the requirements of good topical preparations.

P3386Angioscopic comparison between polymer-free biolimus A9-coated stent and durable polymer drug-eluting stent 10 months after the implantation

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
T Tsujimura ◽  
T Ishihara ◽  
O Iida ◽  
M Asai ◽  
M Masuda ◽  
...  
Keyword(s):  
De Novo ◽  
Drug Eluting Stent ◽  
Light Yellow ◽  
Yellow Color ◽  
Yellow Plaque ◽  
Durable Polymer ◽  
Biolimus A9 ◽  
Drug Eluting ◽  
Neointimal Coverage ◽  
Grade 3

Abstract Background Polymer-free biolimus A9-coated stent (DCS) has currently emerged as expected better arterial healing compared to durable polymer drug-eluting stent (DP-DES). However, superiority of DCS on arterial healing over DP-DES has not been well elucidated using intracoronary images. Methods This study examined 288 stents in 224 patients with de novo coronary artery lesions. We angioscopically compared 55 DCS from 35 patients with 233 DP-DES from 189 patients 10±2 months after the implantation. We assessed thrombus adhesion, which is a marker of incomplete re-endothelialization. Dominant neointimal coverage (NIC) grade, heterogeneity of NIC and maximum yellow color of plaque underneath the stent were also evaluated. Neointimal coverage was graded as follows: grade 0, stent struts exposed; grade 1, struts bulged into the lumen, although covered; grade 2, struts embedded by the neointima, but translucent; grade 3, struts fully embedded and invisible. NIC was judged as heterogeneous when differences in the NIC grade became apparent. Yellow plaque was graded as follows: grade 0, white; grade 1, light yellow; grade 2, yellow; grade 3, intensive yellow. Results Thrombus adhesion was similar between DCS and DP-DES (29% versus 23%, P=0.32). Dominant NIC was greater in DCS than in BP-DES (P<0.001), while NIC was more heterogeneous in DCS than in BP-DES (P=0.001, Figure). Maximum yellow color of stented segment was similar between DCS and DP-DES (P=0.09). Conclusion DCS provided similar thrombus adhesion to DP-DES, which suggested similar re-endothelialization 10 months after implantation. However, DCS showed thick and heterogeneous NIC compared to DP-DES. The specific feature of polymer-free and Biolimus A9 would cause the difference, and further investigation is necessary to evaluate the longer-term safety and efficacy. Acknowledgement/Funding None

scholarly journals Synthesis and characterization of the Bi2-xHox/2Zr3x/8O3 compounds

2011 ◽  
Vol 47 (2) ◽  
pp. 105-112 ◽  
Author(s):  
P. Sulcová ◽  
P. Bystrzycki ◽  
L. Válek ◽  
M. Trojan
Keyword(s):  
Thermal Analysis ◽  
Metal Ions ◽  
Powder Diffraction ◽  
Synthesis And Characterization ◽  
Inorganic Pigments

A series of novel environmentally inorganic pigments based on Bi2O3 doped by metal ions such as Zr4+ and Ho3+ have been developed and characterized using of methods of thermal analysis, Xray powder diffraction and CIE L

Thermoanalytical Methods in Vulcanizate Analysis II. Derivative Thermogravimetric Analysis

1975 ◽  
Vol 48 (4) ◽  
pp. 661-677 ◽  
Author(s):  
D. W. Brazier ◽  
G. H. Nickel
Keyword(s):  
Preceding Paper ◽  
Limiting Factor ◽  
Inorganic Pigments ◽  
Thermal Stabilities ◽  
Pyrolysis Products ◽  
Exothermic Reactions ◽  
Temperature Range ◽  
Black Oil ◽  
Scan Rate ◽  
Tg And Dtg

Abstract We have shown in this and the preceding paper that fully compounded stocks can be analyzed for all main constituents by use of a combination of DSC, TG, and DTG. Further, this can be achieved on a time scale consistent with routine quality control. DSC gives information on cure characteristics, sulfur, and accelerator levels in approximately five minutes. Elastomer, elastomer ratio, carbon black, oil/plasticizer, and inorganic pigments are determined in about 35 minutes by TG/DTG, at a scan rate of 10°C/min. This time can be reduced by increasing the scan rate, but interference from highly exothermic reactions can be a limiting factor. Each compound must be treated individually to determine the maximum scan rate that can be used without impairing reproducibility. Clearly limitations exist for identification of unknown blends by DTG. The main problem is that many commercial elastomers have very similar thermal stabilities, which results in DTG peaks in the same temperature range. Further work is being undertaken with the DTG—gas chromatography interface to identify not only the pyrolysis products, but the temperature range over which they are evolved. In this manner, the DTG acts essentially as a thermal fraetionation unit and GC analysis of products from a given component in a blend can be achieved.

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