Color Intensity of Architectural Concrete Depending on the Type of Cement

2020 ◽  
Vol 986 ◽  
pp. 50-54
Author(s):  
Monika Utěšená ◽  
Radka Pernicova
Keyword(s):  
Ecological Footprint ◽  
Experimental Testing ◽  
Modern Architecture ◽  
Efficiency Ratio ◽  
Color Intensity ◽  
Cement Type ◽  
White Cement ◽  
Intensity Saturation ◽  
The Difference ◽  
Irrelevant Color

In this paper, the influence of the cement type on the final coloring of the concrete with colored powdered inorganic pigments used currently with increasing tendency in construction and modern architecture is presented. In the experimental testing, the difference in intensity/saturation of the color of the concrete containing white cement (CEM I 52.5 R - SR 5 white), which is preferred when using color pigments, and gray (conventional) Portland cement (CEM I 52.5 R) from the same manufacturer has been measured and compared. Three colored inorganic powder pigments (red, green and yellow pigment) containing iron oxides (Fe2O3) have been used to color the concrete mixture. Objectivity of measurement, comparison, and subsequent analysis of individual resulting shades has been ensured by measuring exact RGB values at several places of the concrete cured surface by means of the Colorimeter Colorcatch nanodevice which automatically eliminates all irrelevant color shades, shadows, and impurities. This eliminated the subjective color impression which is usually always biased by external circumstances. Comparison of the color intensity of six experimental samples, including three pigment colors and two types of cement (white/grey), is conclusively related to the color efficiency ratio, the resulting costs, and the ecological footprint arising from the production of the cements above.

scholarly journals Consumer Acceptance of Meat from Animals Reared on Insect Meal as Feed

Animals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1312 ◽  
Author(s):  
Katalin Szendrő ◽  
Mónika Zita Nagy ◽  
Katalin Tóth
Keyword(s):  
Global Warming ◽  
Animal Welfare ◽  
Ecological Footprint ◽  
Protein Production ◽  
Animal Feed ◽  
Consumer Acceptance ◽  
Free Range ◽  
Highly Educated ◽  
The Difference ◽  
Good Substitute

Insect protein production requires much less land, feed, and water, and thus has a much smaller ecological footprint than animal protein production, which is important for reducing global warming. Poultry, pigs, and fish consume insects in nature, so insect meal could be a good substitute for soybean and fishmeal as a protein source in diets. The aim of this study was to examine consumer opinion on meat that originated from animals whose diet contained insect meal. The study was conducted in Hungary in 2020 (N = 414). On a scale of 1–7, respondents gave much lower scores (3.96) to this product than that which originated from a free-range system (5.11; p < 0.001). Male, more highly educated, and 30–39 year-old respondents gave significantly higher scores than other groups. The most important factor in accepting insect meal in animal feed was “no risk”, while the least important factor was “replacement of Genetically Modified (GM) soybeans”. Since free-range animals also consume insects, the difference in the attitude of respondents was based on their aversion to insects, while accepting free-range as the best animal welfare system. Thus, more emphasis should be placed on the benefits of insect meal in animal feed in order to bring about awareness and acceptance.

PROGRESS OF PREMATURE INFANTS FED A FORMULA CONTAINING DEMINERALIZED WHEY

PEDIATRICS ◽  
1963 ◽  
Vol 32 (1) ◽  
pp. 52-55
Author(s):  
Lewis A. Barness ◽  
Walter B. Omans ◽  
Catharine S. Rose ◽  
Paul György
Keyword(s):  
Human Milk ◽  
Protein Content ◽  
Premature Infants ◽  
Total Protein ◽  
Gamma Globulin ◽  
The Other ◽  
Efficiency Ratio ◽  
Food Efficiency Ratio ◽  
The Difference ◽  
New Formula

One hundred fifty-two premature infants were fed a formula in which the protein was partially derived from demineralized electrodialyzed whey. The resulting formula has the same fat, carbohydrate, and protein content as the other commercially available "simulated human milks," but 50% of the protein is from whey and the total electrolyte load is lower. In consequence the total osmolar load is considerably reduced. Studies of infants fed this new formula were compared with studies using a "simulated human milk." The new formula was well accepted. The infants grew well in weight and height. Values for blood urea nitrogen, and total protein and phosphorus in serum, were the same for both formulas. Slight but significant differences were found in cholesterol, albumin, and gamma-globulin levels. The difference in the food efficiency ratio between the two formulas was not statistically significant.

scholarly journals Application of microtomography and image analysis to the quantification of fragmentation in ceramics after impact loading

2017 ◽  
Vol 375 (2085) ◽  
pp. 20160166 ◽  
Author(s):  
Pascal Forquin ◽  
Edward Ando
Keyword(s):  
Silicon Carbide ◽  
High Speed ◽  
High Strain ◽  
Experimental Testing ◽  
Damage Model ◽  
Three Dimensional ◽  
The Difference ◽  
Carbide Ceramics ◽  
Fragmentation Patterns ◽  
Silicon Carbide Ceramics

Silicon carbide ceramics are widely used in personal body armour and protective solutions. However, during impact, an intense fragmentation develops in the ceramic tile due to high-strain-rate tensile loadings. In this work, microtomography equipment was used to analyse the fragmentation patterns of two silicon carbide grades subjected to edge-on impact (EOI) tests. The EOI experiments were conducted in two configurations. The so-called open configuration relies on the use of an ultra-high-speed camera to visualize the fragmentation process with an interframe time set to 1 µs. The so-called sarcophagus configuration consists in confining the target in a metallic casing to avoid any dispersion of fragments. The target is infiltrated after impact so the final damage pattern is entirely scanned using X-ray tomography and a microfocus source. Thereafter, a three-dimensional (3D) segmentation algorithm was tested and applied in order to separate fragments in 3D allowing a particle size distribution to be obtained. Significant differences between the two specimens of different SiC grades were noted. To explain such experimental results, numerical simulations were conducted considering the Denoual–Forquin–Hild anisotropic damage model. According to the calculations, the difference of crack pattern in EOI tests is related to the population of defects within the two ceramics. This article is part of the themed issue ‘Experimental testing and modelling of brittle materials at high strain rates’.

The Key Parameter Modeling of SiC MOSFET

2014 ◽  
Vol 986-987 ◽  
pp. 1391-1395
Author(s):  
Yong Long Peng ◽  
Rong Rong Li ◽  
Ya Bin Li
Keyword(s):  
Experimental Testing ◽  
Process Analysis ◽  
Variable Temperature ◽  
Voltage Source ◽  
Junction Capacitance ◽  
Internal Relations ◽  
Terminal Voltage ◽  
Change Of Variable ◽  
The Difference ◽  
Gate Resistance

This thesis mainly analysed the internal relations between parameters of SiC MOSFET and its dynamic and static characteristics respectively. And furthermore, a new method for modeling of SiC MOSFET based on PSpice was proposed in this paper. By introducing voltage’s controlling for voltage source E, we can compensate and correct the difference between PSpice default value of gate threshold voltage and actual value. At the same time, we can adopt two different junction capacitance models to describe the changes of junction capacitance which were brought about by the difference of the terminal voltage. In the meanwhile, there are newly increased source-drain resistance of MOSFET and gate resistance with the temperature change of variable temperature sub models. New models are able to fully and accurately reflect SiC MOSFET’s static and dynamic characteristics. Moreover, it provides an important foundation for switch process analysis of SC MOSFET, loss calculation and main circuit design. The fact that the experimental testing result is highly coincident with the simulation results verifies the correctness and accuracy of the models.

scholarly journals Kajian Mutu Selai Lembaran Jambu Biji (Psidium guajava) Akibat Konsentrasi Ekstrak Antosianin Bunga Mawar (Rosa sp) dan Jenis Agen Pembentuk Gel

2019 ◽  
Vol 2 (1) ◽  
pp. 81
Author(s):  
Fina Innama Listin ◽  
Elfi Anis Saati ◽  
Rista Anggriani
Keyword(s):  
Antioxidant Activity ◽  
Vitamin C ◽  
Agricultural Sector ◽  
Total Soluble Solid ◽  
Gelling Agent ◽  
Color Intensity ◽  
Total Anthocyanin ◽  
Antioxidant Power ◽  
Soluble Solid ◽  
The Difference

Guava as one of the agribusiness commodities in the primary agricultural sector has several advantages that make this type of fruit in great demand. Proper and correct processing can increase the shelf life of horticultural products, better flavor values have an impact on the preferences and economic value more than the nutritional value contained in the processed fruit. Red guava is rich in pectin, which is very suitable to be processed into slice jam. Slice jam is the result of modification of semi-solid jam. Slice jam is known as fruit leather. The purpose of this study was to determine the interaction between the concentration of rose extract and the difference of gelling agent to physical and chemical characteristics of the guava slice jam. The research method used was Group Randomized Design (GRD) factorial with 2 factors. The first factor was the concentration of rose extract consisting of 5 levels (0%, 2.5%, 5%, 7.5%, 10%). The second factor was the difference of gelling agent consisting of 2 levels (agar 1.5% and carrageenan 1.5%). Parameters analyzed included total soluble solid (° Brix), acidity (pH), vitamin C content, antioxidant activity, total anthocyanin, texture, color intensity (L, a +, b +) and hedonic test (flavor, taste, Appearance, texture). The results of this study showed that there was an interaction between the addition of rose extract concentration and the difference of gelling agent to dissolved solid (° Brix), vitamin C content, antioxidant activity, total anthocyanin, brightness color intensity (L) and redness (a+) guava slice jam. The best treatment was derived at the treatment of 10% roses extract with carrageenan that had 34.20 ° Brix of total soluble solid almost approach the standard of jam (SNI 01 – 3746 – 2008), 3.26 of pH, 96.56 mg / g of vitamin C, 81.45% of antioxidant power, 20.29 mg / g of level anthocyanin, 1.86 of texture, 3.13 of flavor score (quite like), 3.33 of taste score (quite tasty), 3.93 of appearance score (interesting), 2.77 of texture score (quite elastic).

scholarly journals AN ACTIVITY TO INCREASE ECOLOGICAL FOOTPRINT AWARENESS OF PRIMARY SCHOOL TEACHER CANDIDATES: EDUCATIONAL DRAMA

2019 ◽  
Vol 9 (1) ◽  
pp. 16-27 ◽  
Author(s):  
Hamdi Karakaş
Keyword(s):  
Primary School ◽  
Teacher Candidates ◽  
Ecological Footprint ◽  
School Teacher ◽  
Primary Teacher ◽  
Primary School Teacher ◽  
Educational Drama ◽  
Before And After ◽  
Post Test ◽  
The Difference

The aim of this study is to investigate the effects of educational drama practices on the ecological footprint awareness of the primary school teachers. In this research, pre-post test single-group quasi-experimental design was used and Ecological Footprint Scale was applied as pre-test and post-test to measure the ecological footprint awareness of primary teacher candidates before and after educational drama practices. Primary school teacher candidates conducted research on environmental issues for ten weeks, wrote a scenario about these issues, staged and watched their scenario. As a result of the study, it was found that the difference between the average scores of the ecological footprint awareness before and after the educational drama studies and the difference between the mean scores of all sub-dimensions were statistically significant (p<0.05). The difference between the average scores is calculated as a big effect[ή2] and it was interpreted that educational drama studies increased the ecological footprint awareness of primary school teacher candidates with a great effect and their sub-dimensions with a medium and large effect. The learner center, which can be used in educational processes, can be effective in providing different activities, information and can enable the acquisition of different behavior and habits with active participation.

scholarly journals Qing monochrome porcelain from the Collection of the Bohdan and Varvara Khanenko National Museum of Arts

2019 ◽  
pp. 168-177
Author(s):  
O. Novikova
Keyword(s):  
Difficult Problem ◽  
National Museum ◽  
Color Intensity ◽  
Identification Problems ◽  
Ruling Elite ◽  
Original Works ◽  
Complex Technology ◽  
Thin Walled ◽  
The Rich ◽  
The Difference

The article analyzes Qing monochrome products of Chinese porcelain and studies the complex technology of their manufacture. This publication is also devoted to the main identification problems of Chinese monochrome thin-walled ceramics and its terminology. When dating and attributing Chinese monochrome porcelain causes the most difficult problem. Thin-walled monochrome glaze ceramic products manufactured at different times are often distinguished only by barely noticeable changes in parts and other proportions of products. Furthermore, the plagiarism was uncharacteristic of Chinese, and the imitation and copying of works of past epochs, in their opinion, only confirmed the value of original works and even gave a sacred meaning to them. The basis for this approach was the idea of ​​connection between epochs, the continuity of traditions and the respect to ancestors supported by the ruling elite, because it was a part of the official religion of the statе – Confucianism. The secret of regenerative firing has been discovered that restores the natural color of metals in their oxides in the glaze composition thanks to the carbon by giving the rich hue color intensity to the monochrome Chinese ceramics. The play of different colors achieved exclusively by ceramic techniques is very attractive, and products colored in such way are sometimes more expensive than the painted glazed ceramics. In Qing times ceramists manufactured a lot of porcelain products that mimicked samples of previous epochs. From time to time potters created almost exact copies of products, so it is sometimes difficult for present-day researchers to tell the difference between late imitations and original ancient works. That’s way the purpose of this article is to analyze works of Chinese Qing monochrome porcelain from the collection of the Bohdan and Varvara Khanenko National Museum of Arts, to demonstrate the manufacturing technology and terminological features and to specify attributions. This study has been illustrated by pieces from the Bohdan and Varvara Khanenko National Museum of Arts.

Experimental and Numerical Analysis of Tensile Properties of Textile Reinforced Concrete with Steel Fibres

2016 ◽  
Vol 722 ◽  
pp. 275-280 ◽  
Author(s):  
Jan Machovec ◽  
Filip Vogel ◽  
Steven Linforth ◽  
Petr Konvalinka
Keyword(s):  
Tensile Stress ◽  
High Performance ◽  
High Performance Concrete ◽  
Experimental Testing ◽  
Uniaxial Tensile ◽  
Textile Reinforced Concrete ◽  
Steel Fibres ◽  
Reinforced Cement ◽  
Maximal Tensile Stress ◽  
The Difference

The topic of this article is the experimental and numerical testing of tensile strength of glass textile reinforced cement-based composites with steel fibres. Cement-based composite is similar to high-performance concrete, with its maximal compressive strength higher than 100 MPa. We used thirty six dogbone-shaped specimens for uniaxial tensile loading with three different kinds of textile reinforcement. The difference between reinforcement was in its weight of 1 m2 of textile. We focused on maximal tensile stress in specimens and the ductile behaviour after first cracking occurred. We will compare results from experimental testing made on different types of reinforcement and results from numerical computer model. Tensile stress was generated by loading with constant increase of displacement.

Automated Analysis of Flour Extracts for Uric Acid and Its Correlation With Degree of Insect Defilement

1983 ◽  
Vol 66 (3) ◽  
pp. 625-631
Author(s):  
Raymond R Galacci
Keyword(s):  
Uric Acid ◽  
Least Squares ◽  
Sodium Acetate ◽  
Automated Analysis ◽  
Color Intensity ◽  
Automated Method ◽  
Straight Line ◽  
The Difference ◽  
Relationship Of ◽  
The Relationship

Abstract An automated method is described for quantitating uric acid in a sodium acetate extract of flour. The difference in color intensity developed in a flour extract treated with the enzyme uricase and one that is not treated is measured spectrophotometrically. A mean recovery of 97.1% was obtained for 50 g flour samples spiked with 1 mg uric acid. The method can measure as little as 50 ng uric acid in 50 g flour and is used to establish a correlation between the uric acid in the flour and the number of insect fragments and excreta pellets present. A 42-data point least squares straight line having a slope of 1.62 and a correlation coefficient of 0.750 (99.9-100% valid) is used to establish the relationship of uric acid to insect defilement.

scholarly journals The Potential of Iodine Lactoglycerol as an Alternative Fungal Stain in the Laboratory

Biomedika ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 74-82
Author(s):  
Lilis Puspa Friliansari ◽  
Erick Khristian ◽  
Sofie Agustina Hermawanti
Keyword(s):  
Image Analysis ◽  
Experimental Design ◽  
Research Method ◽  
Color Stability ◽  
Color Intensity ◽  
Average Value ◽  
Structure And Morphology ◽  
Cotton Blue ◽  
The Difference ◽  
Fungal Stain

Fungi are eukaryotic and opportunistic organisms that can cause damage and disease. Fungi can be identified by direct staining. The composition of the dyes used in fungi staining are toxic, mutagenic and harmful to laboratory personnel and the environment. Consequently, it is necessary to consider use fungi dye continuously, so its need alternative safety dyes to identify fungi in the laboratory. This research aims to determine the potential of iodine lactoglycerol with different concentrations (1.25%, 2.5%, and 5%) as an alternative dye for fungi in the laboratory. The research method used experimental design. The samples originate from moldy bread and made 27 of microscopic slides. The microscopic slides were observed with objective 40x magnification. The parameters assessed in this study were the structure and morphology of fungi including hyphae, conidiophores, vesicles, sterigmata and conidiospores and color intensity using the image analysis of ImageJ. The results showed that various concentrations of iodine lactoglycerol can staining the structure and morphology of the fungi properly and clearly. The value of color intensity of each concentration measured has a different average. The highest average value of color intensity concentration was 5% and the lowest was 1.25%. However, the result of ANOVA test showed a significance of 0.380 (P> 0.05), which means that is no difference significantly from three of various concentrations. The result showed that the difference concentration of iodine lactoglycerol does not affect the color intensity. The conclusion of this study was iodine lactoglycerol solution can be used as an alternative dye or Lactophenol-cotton Blue (LPCB) substitute for fungi identification. It is recommendation for further research be carried out regarding the decrease in the concentration of alternative color solutions below 1.25%, the incubation time for the preparation of the preparations, and the color stability of the prepared mushroom preparations.

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