A New Method of Producing Carbon Anode by High-Temperature Mould Pressing

2011 ◽  
Vol 415-417 ◽  
pp. 611-616
Author(s):  
Yao Wu Wang ◽  
Nai Xiang Feng ◽  
Jing You
Keyword(s):  
High Temperature ◽  
Bulk Density ◽  
Electrical Resistance ◽  
Chemical Properties ◽  
New Method ◽  
Carbon Anode ◽  
Crushing Strength ◽  
Industrial Carbon ◽  
Physico Chemical ◽  
Carbon Anodes

Laboratory-scale carbon anodes were produced by a new method of high-temperature mould pressing, and their physico-chemical properties were studied in laboratory. The results showed that the bulk density of carbon anodes produced by high-temperature mould pressing are 1.61-1.63g/cm3, they are higher than industrial carbon anode by 0.06 g/cm3, but the specific electrical resistance is higher and crushing strength is lower.

scholarly journals Evolution of an alumina-magnesia/self-forming spinel castable. Part II: physico-chemical and mechanical properties

Cerâmica ◽  
1999 ◽  
Vol 45 (295) ◽  
pp. 146-149
Author(s):  
D. Gutiérrez-Campos ◽  
J. I. Diaz ◽  
R. M. Rodriguez
Keyword(s):  
Mechanical Properties ◽  
Bulk Density ◽  
Chemical Properties ◽  
Microstructural Characteristics ◽  
Crushing Strength ◽  
Physico Chemical ◽  
Cold Crushing Strength

This study was carried out in conjunction with the investigation, reported in Part I, on the microstructural characteristics of an alumina-spinel castable with several percentages of MgO content. Bulk density and cold crushing strength of samples were evaluated dried and at three fired states (1000, 1200, 1400 °C). Results indicate little influence of MgO additions on physico-chemical properties of the alumina-magnesia/self-forming spinel castable. Characteristics compared with those reported for conventional alumina-spinel castables did not show large difference in values. Therefore, the alumina-magnesia/self-forming spinel castable could be a possible material for substitution of the conventional alumina-spinel castable.

scholarly journals Changes in physico-chemical properties of paddy soil due to water and fertilizer management

2020 ◽  
Vol 5 (2) ◽  
pp. 65-71
Author(s):  
Israt Jahan ◽  
AKM Abul Ahsan ◽  
MMR Jahangir ◽  
Mahmud Hossain ◽  
Md Anwarul Abedin
Keyword(s):  
Organic Matter ◽  
Soil Properties ◽  
Bulk Density ◽  
Total Nitrogen ◽  
Soil Ph ◽  
Crop Production ◽  
Soil Health ◽  
Chemical Properties ◽  
Soil Samples ◽  
Physico Chemical

Soil physico-chemical properties are an important phenomenon for sustainable crop production and maintenance of optimum soil health. Hence, a laboratory measurement was conducted with soil samples of three years long experimental field of the Department of Soil Science, Bangladesh Agricultural University, Mymensingh to assess the changes in five selected soil physico-chemical properties viz. soil texture, bulk density, soil pH, total nitrogen and organic matter. The experiment was laid out in a split plot design with two water regimes (continuous flooding and alternate wetting & drying) in the main plots and five fertilizer treatments (N0 - control, N1- 140 kg N/ha as PU, N2- 104 kg N/ha as USG (2× 1.8 g/ 4 hills), N3 - 5 t CD + PU @ 140 kg N /ha on IPNS basis and N4- 5 t CD + USG (2× 1.8 g/ 4 hills @ 104 kg N/ha)) in the subplots under rice-rice cropping pattern with three replications. After three years, soil samples were collected at 0-5 and 5-10 cm soil depths for measuring bulk density and at 0-10 cm depth for other soil properties and analyzed. Results found that % sand, % silt, % clay, bulk density and soil pH was not changed significantly compared to initial status. Percentage of total nitrogen and organic matter was significantly affected by irrigation and fertilization. Total nitrogen (%) was higher in AWD whereas organic matter (%) was higher in CF practice. The highest total nitrogen (%) and organic matter (%) was found in N4 treatment in which USG was applied in combination with cowdung as organic manure. It can be suggested that N4 treatment was formed good combination for sustaining chemical properties of soil. Further long- term experimentation will be needed to know the changes in soil properties for sustainable crop production and improving soil health. Asian Australas. J. Biosci. Biotechnol. 2020, 5 (2), 65-71

scholarly journals PENINGKATAN DAYA SAING KEDELAI LOKAL TERHADAP KEDELAI IMPOR SEBAGAI BAHAN BAKU TEMPE MELALUI PEMETAAN FISIKO-KIMIA

AGROINTEK ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 57-66
Author(s):  
Kukuk Yudiono
Keyword(s):  
United States ◽  
Bulk Density ◽  
Seed Size ◽  
Trial Design ◽  
Chemical Properties ◽  
The United States ◽  
Raw Material ◽  
Swelling Power ◽  
Physico Chemical

The main problem encountered in the production of tempeh was its raw material, namely soybeans dominated by soybean supplied from other countries, mainly dominated by imported products from the United States. The majority of tempeh craftsmen's perception is that imported soybeans are superior to local soybeans. This is of course unfortunate because it will further aggravate the competitiveness of local soybeans. This research was conducted to explore the advantages of local soybeans, especially from the physico-chemical aspects of imported soybeans. The research objective was to map the physico-chemical properties of local and imported soybeans as raw material for tempeh. One factor trial design was used, with soybean varieties (4 local and 1 imported) as a factor. Variables observed included: antioxidant, bulk density, swelling power, plant quality, seed size, WAI, WSI, protein, yield, and density. The results obtained: 1) antioxidant : Devon 1 imported soybeans, 2) bulk density: fourth of local soybeans = imported soybeans, 3) swelling power : Argomulyo = imported soybeans, 4) quality of  cooking: fourth of  local soybeans imported soybeans, 5) seed size : Grobogan and Argomulyo imports, 6) WAI:  Argomulyo and Demas imported soybeans, 7) WSI: Devon = imported soybeans, 8) protein: Grobogan and Detam imported soybeans, 9) density:  Bromo imported soybeans, 10) extraction value: Anjasmoro, Argomulyo, and Grobogan imported soybeans.

scholarly journals SOIL-SITE SUITABILITY AND EVALUATION FOR SOYBEAN CROP ON SOME VERTISOLS OF MARATHWADA REGION OF MAHARASHTRA STATE

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Malode K. R ◽  
Singh Akansha ◽  
Sharma C. K
Keyword(s):  
Hydraulic Conductivity ◽  
Organic Carbon ◽  
Surface Structure ◽  
Bulk Density ◽  
Chemical Properties ◽  
Soil Profiles ◽  
Arid Zones ◽  
Nutrient Contents ◽  
Physico Chemical ◽  
Soil Site

A study was conducted in arid and semi-arid zones of Marathwada region of Maharashtra during 2011-12. Six soil profiles on different topographic condition were chosen at Nanded, Latur, Osmanabad and Beed districts of Marathwada region. These profiles were examined for soil site properties such as climate, depth, texture, structure and drainage. Physico-chemical properties such as pH, EC, Organic carbon, CEC, CaCO3 content, available micro nutrient contents, bulk density, hydraulic conductivity, sand, silt and clay were also studied,. Morphological analysis showed that surface structure was weak, and sub surface structure was sub angular to angular blocky. Soil color showed dark grayish brown to very dark gray in color. Drainage was moderately well in all soils except P4, P5 and P6, which were showed imperfect drained. Soils were clayey in texture the clay per cent ranged from 50.1 % to 62.1 %, sand ranged from 9.7 % to 21.6 % and silt varied from 25.1% to 32.9 %. The bulk density range from 1.27 to 1.56 Mg m-3. Hydraulic conductivity ranged from 0.1. to 5.3 cm hr-1. The pH ranges showed that soils were moderately to strongly alkaline in reaction. Organic carbon ranged from 1.95 to 10.04 g kg-1, calcium carbonate ranged from 2.8 to 19.0 % and CEC ranged from 38.2 to 78.2 cmol p(+) kg-1. Based on field morphology and laboratory characterizations, the soil of the study area classified to Vertisols of great group Haplusterts. The all soil profiles were classified as Typic Haplusterts at great group level except pedon P6 is Vertic Haplusterts. Soil profile when correlated with yield it was concluded that pedon P5 Typic Haplusterts belonging to order Vertisols were best soils for soybean growing that order.

scholarly journals Physico-chemical properties of extruded aquafeed pellets containing black soldier fly (Hermetia illucens) larvae and adult cricket (Acheta domesticus) meals

2018 ◽  
Vol 4 (1) ◽  
pp. 19-30 ◽  
Author(s):  
F.G. Irungu ◽  
C.M. Mutungi ◽  
A.K. Faraj ◽  
H. Affognon ◽  
N. Kibet ◽  
...  
Keyword(s):  
Moisture Content ◽  
Water Absorption ◽  
Bulk Density ◽  
Water Solubility ◽  
Chemical Properties ◽  
Expansion Ratio ◽  
Acheta Domesticus ◽  
Fish Feed ◽  
Black Soldier Fly ◽  
Physico Chemical

Fish farming is faced with the challenge of high cost of feeds because of the cost of high quality protein needed for formulation of the feeds. Thus, there is urgent need for alternative protein sources. The effects of substituting freshwater shrimp meal (FWSM) with black soldier fly larvae meal (BSFM) or adult cricket meal (ACM) on physico-chemical properties of hot-extruded fish feed pellets were investigated. The FWSM protein in a 26 g/100 g protein fish feed formulation was substituted at 0, 25, 50 and 75%, and moisture content of the formulated blends adjusted to 10, 20 or 30 g/100 g prior to extrusion. Floatability, expansion rate, bulk density, durability index, water absorption index, water solubility index, and water stability of extruded pellets were determined. Sinking velocity and the total suspended and dissolved solids in water were determined for the optimal pellets. Pellet floatability was not influenced by the type of insect meal but the interaction between level of inclusion and moisture content of the feed at extrusion. Pellets with high floatability >90% were produced from all feed blends at 30 g/100 g moisture content. Expansion ratio, was not influenced by type of insect meal or the level of inclusion but by the moisture content whereby feed blends extruded at 30 g/100 g moisture gave pellets with high expansion ratio ~60%. Bulk density was influenced by the interaction of the three factors. Pellet durability and water absorption indices were not influenced by the investigated factors or their interactions. Processed pellets were generally highly durable (99%) out of water, but the stability in water was significantly influenced by the interaction of type of insect meal level of inclusion and moisture content at extrusion. Water solubility increased with increasing extrusion moisture. Overall, it was possible to process good quality extruded pellets with 75% BSFM or 75% ACM at 30 g/100 g feed moisture.

Physico-chemical Properties of Pancakes Made from an Instant Mix Containing Different Levels of Peanut (Arachis hypogaea) Flour

2013 ◽  
Vol 40 (2) ◽  
pp. 142-148
Author(s):  
V. K. Yemmireddy ◽  
S. Chintagari ◽  
Y. C. Hung
Keyword(s):  
Protein Content ◽  
Bulk Density ◽  
Profile Analysis ◽  
Chemical Properties ◽  
Moisture Loss ◽  
Peanut Flour ◽  
Replacement Level ◽  
Texture Profile ◽  
Physico Chemical ◽  
Breakfast Food

ABSTRACT Partially defatted peanut flour has proven to exhibit excellent functional and nutritional properties in many foods. In this study, a peanut pancake instant mix was developed by replacing a portion of wheat flour with peanut flour; either 12% fat medium roast (12M) or 28% fat light roast (28L) peanut flours at various levels (20, 30, 40 and 50%) in a starting pancake formulation. Effect of peanut flour initial fat content and degree of roasting on physico-chemical properties such as viscosity of the batter, surface color, texture and composition of the pancakes were determined. In addition, the effect of microwave reheating time on moisture loss, bulk density and texture of the frozen peanut pancakes was investigated at 30% replacement level and compared with a commercial frozen pancake. Viscosity of the instant mix batter made with 12M peanut flour was higher than the control whereas 28L was lower than the control. All peanut pancakes were darker (lower L values) and browner (lower hue angle) than the control. Texture profile analysis properties such as hardness, cohesiveness and chewiness values decreased with increasing peanut flour replacement level; whereas, springiness values increased. Moisture, fat, ash and protein content were increased with increasing peanut flour replacement level. Pancakes made from 12M have higher protein content than the 28L samples at same level of replacement. Frozen peanut pancakes after microwave reheating showed significant moisture loss, increased bulk density and increased hardness and chewiness. At tested conditions a microwave reheating time of 20 or 30 s was sufficient to achieve desirable eating characteristics (moisture loss, density and texture) of peanut pancakes when compared to the commercial frozen pancakes or freshly prepared peanut pancakes. This study demonstrated that the instant peanut pancake mix has potential as a functional breakfast food item to replace regular wheat pancakes.

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