scholarly journals Influence of the Bottom Color Modification and Material Color Modification Process on the Performance of Modified Poplar

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 660
Author(s):  
Qingqing Liu ◽  
Di Gao ◽  
Wei Xu
Keyword(s):  
Chemical Properties ◽  
Target Color ◽  
Modification Process ◽  
Red Color ◽  
The Difference ◽  
Pre Treatment ◽  
Physical And Chemical ◽  
Surface Differentiation ◽  
Color Modification ◽  
And Chemical Properties

According to the old surface coating process of European and American furniture, the surface of modified poplar is first differentiated pre-treatment, and then the bottom color modification and material color modification are respectively applied to the modified poplar after the surface differentiation treatment. The visual physical quantity and physical and chemical properties were measured and compared with mahogany, which is commonly used in old furniture in Europe and America to explore the effect of colorants and coloring steps, as well as different surface pretreatments on the coloring effect. Finally, it is concluded that continuous coloring operations can narrow the difference in brightness and red color value in the coloring layer of modified poplar and mahogany. Continuous coloring operations increase the difference between the yellow-green color values of modified poplar and mahogany. Therefore, the coloring difference between modified poplar and mahogany was affected by the colorant and coloring steps. Through color accumulation, the gap between the two in the target color coloring effect can be reduced, thereby reducing the difference between the coloring effect of modified poplar and mahogany.

Study on the Properties and Application of Optim™ Fine Fibers

2011 ◽  
Vol 287-290 ◽  
pp. 2561-2564
Author(s):  
Jiang Wei Yao ◽  
Wei Dong Yu
Keyword(s):  
Chemical Properties ◽  
Wool Fabric ◽  
Physical And Chemical Properties ◽  
Performance Difference ◽  
Merino Wool ◽  
Fine Fiber ◽  
The Difference ◽  
New Generation ◽  
Physical And Chemical ◽  
And Chemical Properties

Optim™ fine is a new generation of ultrafine wool fibres, which are transformed by stretching and setting from merino wool. The Optim™ fine retains some of the physical and chemical properties of merino wool, but the morphology and other properties changes, such as the diameter, length, lusture, breaking extension and shrinkage. These changes results in the performance difference btween the fabric woven from Optim™ fine and fine wool fiber. To clearly understande the reason of the difference, the morphological and physical properties changes of Optim™ fine was examined in this paper, and the performance difference between wool fabric and Optim™ fine fabric was evaluated by Fabric Assurance by Simple Testing(FAST). It was found that the decreasing in breaking extension and increasing in shrinkage of Optim™ fine resulted in the declining in formability and dimensional stability of Optim™ fine fabric. Suggestions on the ways of constructing Optim™ fine into fabric were also given according to the anlysis of relationship between the properties changes of Optim™ fine fiber and that of its fabric.

scholarly journals The effect of genotype and lactation on yield and physicochemical properties of ewe milk

2014 ◽  
Vol 30 (3) ◽  
pp. 445-456 ◽  
Author(s):  
Z.Z. Ilic ◽  
A. Jevtic-Vukmirovic ◽  
Caro Petrovic ◽  
M.P. Petrovic ◽  
M.M. Petrovic ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Genotype 1 ◽  
Genotype 2 ◽  
Total Milk ◽  
Minimal Difference ◽  
The Difference ◽  
Lactation Duration ◽  
Physical And Chemical ◽  
And Chemical Properties

Two genotype of sheep have been utilized in the conduct of the experiment composed of 60 ewes from Pirot x Virtemberg as genotype 1 and 60 ewes of Improved Pirot as genotype 2. All the ewes were reared under identical conditions and without any differences in nutrition and management during the whole period under study. The collection of Milk sampling was done in morning and evening during periods (1, 2, 3) of lactation duration. The average lactation duration and average total milk of the two genotypes were very close and has a minimal difference of 0.467 day and 1.562 kg, in favor of genotype 2. The differences between genotypes were not significant (P>0,05). Regarding physical and chemical properties of milk for both genotypes, the difference were very minimal such as follows; viscosity Pa x s - 0.006, electrical conductivity ? - 0.018, density kg/m3 -0,001, freezing, t 0C - 0.013, LD number - 0.028 total solids, % - 0.014, fat,% - 0,026, protein,% - 0.085, lactose,% - 0.038, ash,% - 0,021, acidity, 0SH - 0.209. The results indicated that the properties of milk for both genotypes were very near to each other. It can be interpreted that the breeds utilized in the experiment were comparable due to similar characteristics perhaps. The effect of genotype was very significant only for the % protein of the milk. The lactation periods were highly significant in all physical and chemical properties of milk.

scholarly journals The Bilateral Structure of Wool Cortex and Its Relation to Crimp

1955 ◽  
Vol 8 (2) ◽  
pp. 288 ◽  
Author(s):  
RDB Fraser ◽  
GE Rogers
Keyword(s):  
Cross Sections ◽  
Chemical Properties ◽  
Sulphur Content ◽  
Wool Fibre ◽  
Physical And Chemical Properties ◽  
Cortical Cells ◽  
Basic Dyes ◽  
The Difference ◽  
Physical And Chemical ◽  
And Chemical Properties

Xew evidence of the nature of the bilateral cortex in crimped wool is presented and discussed in relation to the physical and chemical properties of the wool fibre. The origin of the asymmetry in the cortex was studied by cutting cross sections of sheep skin and swelling plucked wool roots. It is shown that the bilateral structure is present before the cortex is keratinized and does not originate from an asymmetrical keratinization as has been suggested. Coarse wools, in which crimp is much less, are shown to possess a radial asymmetry in which the peripheral cortical cells are less accessible to basic dyes and have a higher sulphur content than the central cells. This is related to the difference between the curved follicles from which fine fibres are produced and the straighter follicles producing coarse fibres.

The Impact of Different Grazing Intensity on Topsoil Physical and Chemical Properties in Xilamuren Grassland

2013 ◽  
Vol 295-298 ◽  
pp. 2090-2096
Author(s):  
Yi Fang ◽  
Xiao Jia Li ◽  
Cong Cong Chen ◽  
Min Zhang ◽  
Rui Ping Zhou ◽  
...  
Keyword(s):  
Particle Size ◽  
Organic Matter ◽  
Soil Organic Matter ◽  
Chemical Properties ◽  
Grazing Intensity ◽  
Physical And Chemical Properties ◽  
Grassland Ecosystem ◽  
The Difference ◽  
Physical And Chemical ◽  
And Chemical Properties

Grassland is an important ecosystem in land surface. Soil is the basis of grassland ecosystem, and the changes of its properties directly affect grassland ecosystem. The study region is located in Xilamuren grassland using the methods of field sampling and experimental analysis. It was divided into four test areas according to grazing intensity. Soil physical and chemical properties were analyzed in each test area. The results showed that: the trend of soil water content decreased and then increased with increasing grazing intensity, soil water content in repaired grassland was the lowest. For the soil mechanical composition, particle size content increased first and then decreased with increasing grazing intensity when the particle size was 1-0.05mm. The difference between the highest and lowest values was obvious. When the particle size was 0.05-0.002mm, the trend of particle size fluctuated, first decreased and then increased, finally reduce again and the difference between the highest and lowest values was obvious. When the particle size was less than 0.002mm, the trend of particle size content increased with increasing grazing intensity. In soil chemical properties, soil organic matter appears downward trend overall as grazing intensity increase. Soil organic matter content was the lowest in repaired grass. Available N and P first decreased and then increased with increasing grazing intensity, the minimum values appeared in the repaired grassland and degraded grassland respectively. Available K content increased with increasing grazing intensity.

scholarly journals GOLD AND MERCURY IN THE PROCESSES OF ORE FORMATION IN KAMCHATKA

2018 ◽  
pp. 54-60
Author(s):  
V. A. STEPANOV
Keyword(s):  
Chemical Properties ◽  
Mineral Resources ◽  
Gold Deposits ◽  
Ore Deposits ◽  
Ore Formation ◽  
Natural Processes ◽  
The Difference ◽  
Physical And Chemical ◽  
Gold Mercury ◽  
And Chemical Properties

The main features of the difference and similarity of the physical and chemical properties of gold and mercury have been given, which  determine their behavior in the natural processes of formation of  deposits of both metals in Kamchatka. It has been shown that the  difference in the properties of gold and mercury led to the  emergence of independent monometallic deposits, differing in  connection with intrusive formations, in depth and temperature of  ore formation. The similarity of the properties of these elements  determined the appearance of mercury minerals on gold ore deposits and gold in mercury deposits, as well as the formation of complex  gold-mercury deposits. Four geological-industrial types of gold- mercury deposits have been distinguished: the Knoxville, the Carlin,  the Kyuchus and the Chemlian ones, which include deposits with  large gold reserves both abroad and in Russia. The identification of  gold deposits, including through the revision of mercury ore  occurrences and deposits of Kamchatka for gold presence, will strengthen the mineral resources base of gold in this region.

scholarly journals Marine Gelatine from Rest Raw Materials

2018 ◽  
Author(s):  
Ivan Milovanovic ◽  
Maria Hayes
Keyword(s):  
Functional Properties ◽  
Raw Materials ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Film Forming ◽  
Pre Treatment ◽  
Polypeptide Chains ◽  
Physical And Chemical ◽  
By Products ◽  
And Chemical Properties

In recent years, demand for consumption of marine foods, and especially fish, has substantially increased worldwide. The majority of collagen available is sourced from mammalian-derived products. Although fish derived gelatine is a viable alternative to mammalian sourced gelatine, there are some challenges related to the use of fish gelatine including odour, colour, gelling and film forming properties as well as consistency in gelatine amino acid composition. Chemicals used for pre-treatment, as well as extraction conditions such as temperature and time, can influence the length of polypeptide chains that result and the functional properties of the gelatine. Compared to mammalian sources, gelatines derived from fish show notable differences in physical and chemical properties, and great care should be paid to optimization of the production process in order to obtain a product with the best properties for intended applications. The focus of this review is to explore the feasibility of producing gelatine sourced from marine processing by-products using different pre-treatment and extraction strategies with the aim of improving the techno-functional properties of the final product and improving the clean-label status of gelatines. The bioactivities of gelatine hydrolysates are also discussed.

scholarly journals Analisis Teknologi Laboratoris Tembikar dari Situs-Situs Das Bengawan Solo, Kabupaten Bojonegoro, Provinsi Jawa Timur

KALPATARU ◽  
2015 ◽  
Vol 24 (1) ◽  
pp. 47
Author(s):  
M. Fadlan S.
Keyword(s):  
Chemical Element ◽  
Chemical Properties ◽  
Laboratory Analysis ◽  
Physical And Chemical Properties ◽  
The Past ◽  
The Difference ◽  
Food And Drink ◽  
Physical And Chemical ◽  
And Chemical Properties

Abstrak. Tembikar merupakan salah satu sisa benda budaya yang paling sering ditemukan dalam penelitian arkeologi, yang terbuat dari tanah liat yang dibakar. Analisis teknologi laboratoris tembikar dari situs-situs di DAS Bengawan Solo Bojonegoro, bertujuan untuk memperoleh hasil yang akurat tentang sifat fisik dan sifat kimia. Melalui kajian analisis teknologi laboratoris dapat digambarkan kualitas tembikar yang dibuat oleh para pengrajin pada masa lampau. Berdasarkan hasil analisis teknologi laboratoris tembikar dari situs-situs DAS Bengawan Solo, Bojonegoro mempunyai kualitas sedang hingga kualitas baik. Tembikar-tembikar tersebut termasuk dalam kategori peralatan sehari-hari yang berfungsi untuk menampung air, mengolah makanan dan untuk penyajian makanan serta minuman. Tingkat pembakarannya mencapai 600°-800° Celcius, dan warna tembikar didominasi warna gelap (dark colors) dibanding dengan warna terang (light colors). Adanya perbedaan prosentase dari setiap unsur kimia pada tembikar tersebut, tidak terlepas dari daya tahan mineral terhadap pelapukan.Abstract. Pottery, which is made of fired clay, is the most frequently found cultural remains during archaeological researches. Technological Laboratory Analysis on pottery from sites along the Bengawan Solo (Solo River) in Bojonegoro aims at obtaining accurate results about the nature of the physical and chemical properties. Through the technological laboratory analysis can be described the quality of pottery made by craftsmen in the past. Based on the results of the analysis, pottery from the sites along the Bengawan Solo, Bojonegoro Regency, have moderate up to good qualities. The pottery belongs to a category of daily equipment that serves to store water, cook food and to serve food and drink. The rate of heat during firing was up to 600°-800° Celsius, and the color of pottery is predominantly dark colors (black colors) with only a few light colors (bright colors). The difference in the percentage of each chemical element in the pottery is due to the durability of the minerals to weathering.

scholarly journals Characteristics and Stability of Mercury Vapor Adsorption over Two Kinds of Modified Semicoke

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Zhang Huawei ◽  
Liu Xiuli ◽  
Wang Li ◽  
Liang Peng
Keyword(s):  
Functional Groups ◽  
Active Sites ◽  
Chemical Properties ◽  
Mercury Vapor ◽  
Vapor Adsorption ◽  
Modification Process ◽  
Delocalized Electron ◽  
The Stability ◽  
Physical And Chemical ◽  
And Chemical Properties

In an attempt to produce effective and lower price gaseous Hg0adsorbents, two methods of HCl and KMnO4/heat treatment were used respectively for the surface modification of liginite semicoke from inner Mongolia. The different effects of modification process on the surface physical and chemical properties were analyzed. The characteristics and stability of mercury vapor adsorption over two kinds of modified semicoke were investigated. The results indicated that modification process caused lower micropore quantity and volume capacity of semicoke; the C-Cl functional groups, C=O bond and delocalized electronπon the surface of Cl-SC, the amorphous higher valencyMnx+, and O=C–OH functional groups on the surface of Mn-H-SC were the active sites for oxidation and adsorption of gaseous Hg0. Modification process led to higher mercury removal efficiency of semicoke at 140°C and reduced the stability of adsorbed mercury of semicoke in simulated water circumstance simultaneously.

scholarly journals TRANSFORMASI KARAKTERISTIK TANAH SAWAH PADA LAHAN BEKAS PENAMBANGAN EMAS DI KABUPATEN SIJUNJUNG SUMATERA BARAT

2020 ◽  
Vol 8 (1) ◽  
pp. 179-188
Author(s):  
Elsa Lolita Putri ◽  
G Gusmini ◽  
A Adrinal ◽  
Y Yaherwandi
Keyword(s):  
Organic Carbon ◽  
Paddy Soil ◽  
Gold Mining ◽  
Chemical Properties ◽  
Rice Fields ◽  
Physical And Chemical Properties ◽  
Mining Soil ◽  
The Difference ◽  
Physical And Chemical ◽  
And Chemical Properties

The process of physical and chemical properties of the former gold mining soil which is caused by the transformation of different land conditions in natural rice fields, reclaimed rice fields, and mine fields. This study aims to determine the differences in the characteristics of the former gold mining soil in natural rice fields, reclaimed rice fields and mining fields in Sijunjung Regency. There were three sampling locations with three sample points each and the samples were analyzed physically and chemically. Results of this study showed that natural paddy soil has optimal conditions for the growth of rice plants followed by reclaimed lowland soil and the worst was in mining paddy soil based on soil physical and chemical properties. The difference in soil physical properties in the form of natural paddy soil texture was smoother compared to land conditions in reclaimed rice fields and mining rice fields. This was due to intensive inundation processes, which created a plough tread layer, low volume weight accompanied by a moderate total pore space. The difference in chemical properties was in the stable pH of natural paddy soil due to inundation and high organic carbon accompanied by rice reclamation and very low organic carbon in mining soils, which would affect the growth of rice plant.

scholarly journals State-of-the-Art of Cellulose Nanocrystals and Optimal Method for their Dispersion for Construction-Related Applications

2019 ◽  
Vol 9 (3) ◽  
pp. 426 ◽  
Author(s):  
Hyung-Joo Lee ◽  
Heon-Seok Lee ◽  
Junwon Seo ◽  
Yong-Hak Kang ◽  
Woosuk Kim ◽  
...  
Keyword(s):  
High Pressure ◽  
Cellulose Nanocrystals ◽  
Chemical Properties ◽  
Average Diameter ◽  
Mechanical Method ◽  
Optimal Method ◽  
Dispersion Mechanism ◽  
The Difference ◽  
Physical And Chemical ◽  
And Chemical Properties

In this paper, we reviewed the existing literature on the fabrication of nanocomposites based on cellulose and cellulose nanocrystals (CNCs), and analyzed their dispersion mechanism with respect to their use in the field of construction. First, the existing literature on CNC-based nanocomposites that exhibit the physical and chemical properties of nanocellulose and CNCs was reviewed. Next, keeping the use of these nanocomposites in the field of construction in mind, we determined the optimal mechanical method for their dispersion as an alternative to the currently used harmful chemical techniques. To this end, we evaluated the dispersibility of colloidal CNCs using two dispersion methods: magnetic stirring (for stirring times of 60 min, 120 min, and 180 min) and high-pressure dispersion (at pressures of 345 × 105 Pa, 1035 × 105 Pa, and 1587 × 105 Pa, and one to three dispersion passes). The optimal dispersion conditions were determined by analyzing the size and zeta potential of the CNC particles. It was found that the difference in the average diameter was reduced by approximately 76% at 1587 × 105 Pa during high-pressure dispersion.

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