The Experiments for the Impact of Temperature on the Grinding Rate about Zhao Tong Bauxite

2013 ◽  
Vol 734-737 ◽  
pp. 1119-1123
Author(s):  
Qing Hong Wang ◽  
Gu Zhang Zhuang ◽  
Chun Mei Wang
Keyword(s):  
Elevated Temperature ◽  
Grinding Temperature ◽  
The Impact ◽  
Slurry Viscosity

The viscosity of Pulp will affect the grinding rate directly, Elevated temperature, the slurry viscosity reduced. In order to study the effect on the grinding rate of temperature, we did the experiment by only changing the temperature, and three groups of contrast test was carried out. The results show that the grinding rate is improved obviously, when the grinding temperature increases from 16 °C to 42 °C.

scholarly journals R-BPMV-Mediated Resistance to Bean pod mottle virus in Phaseolus vulgaris L. Is Heat-Stable but Elevated Temperatures Boost Viral Infection in Susceptible Genotypes

Viruses ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1239
Author(s):  
Chouaïb Meziadi ◽  
Julie Lintz ◽  
Masoud Naderpour ◽  
Charlotte Gautier ◽  
Sophie Blanchet ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Phaseolus Vulgaris ◽  
Elevated Temperatures ◽  
Heat Waves ◽  
Dominant Gene ◽  
Atmospheric Temperature ◽  
Mottle Virus ◽  
Bean Pod Mottle Virus ◽  
Heat Stable ◽  
The Impact

In the context of climate change, elevated temperature is a major concern due to the impact on plant–pathogen interactions. Although atmospheric temperature is predicted to increase in the next century, heat waves during summer seasons have already become a current problem. Elevated temperatures strongly influence plant–virus interactions, the most drastic effect being a breakdown of plant viral resistance conferred by some major resistance genes. In this work, we focused on the R-BPMV gene, a major resistance gene against Bean pod mottle virus in Phaseolus vulgaris. We inoculated different BPMV constructs in order to study the behavior of the R-BPMV-mediated resistance at normal (20 °C) and elevated temperatures (constant 25, 30, and 35 °C). Our results show that R-BPMV mediates a temperature-dependent phenotype of resistance from hypersensitive reaction at 20 °C to chlorotic lesions at 35 °C in the resistant genotype BAT93. BPMV is detected in inoculated leaves but not in systemic ones, suggesting that the resistance remains heat-stable up to 35 °C. R-BPMV segregates as an incompletely dominant gene in an F2 population. We also investigated the impact of elevated temperature on BPMV infection in susceptible genotypes, and our results reveal that elevated temperatures boost BPMV infection both locally and systemically in susceptible genotypes.

scholarly journals Impact of elevated temperature scenarios on potato leaf development

2012 ◽  
Vol 32 (4) ◽  
pp. 689-697 ◽  
Author(s):  
Nereu A. Streck ◽  
Lilian O. Uhlmann ◽  
Alencar J. Zanon ◽  
Dilson A. Bisognin
Keyword(s):  
Elevated Temperature ◽  
Leaf Development ◽  
Potato Crop ◽  
Temperature Response ◽  
Potato Leaf ◽  
Linear Temperature ◽  
Growing Seasons ◽  
Randomized Design ◽  
Leaf Appearance ◽  
The Impact

The objective of this study was to simulate the impact of elevated temperature scenarios on leaf development of potato in Santa Maria, RS, Brazil. Leaf appearance was estimated using a multiplicative model that has a non-linear temperature response function which calculates the daily leaf appearance rate (LAR, leaves day-1) and the accumulated number of leaves (LN) from crop emergence to the appearance of the upper last leaf. Leaf appearance was estimated during 100 years in the following scenarios: current climate, +1 °C, +2 °C, +3 °C, +4 °C e +5 °C. The LAR model was estimated with coefficients of the Asterix cultivar in five emergence dates and in two growing seasons (Fall and Spring). Variable of interest was the duration (days) of the crop emergence to the appearance of the final leaf number (EM-FLN) phase. Statistical analysis was performed assuming a three-factorial experiment, with main effects being climate scenarios, growing seasons, and emergence dates in a completely randomized design using years (one hundred) as replications. The results showed that warmer scenarios lead to an increase, in the fall, and a decrease, in the spring growing season, in the duration of the leaf appearance phase, indicating high vulnerability and complexity of the response of potato crop grown in a Subtropical environment to climate change.

scholarly journals Experiment on Foreign Object Damage of Gas Turbine-Grade Silicon Nitride Ceramic

1998 ◽  
Author(s):  
Hiro Yoshida ◽  
Takashi Nakashima ◽  
Makoto Yoshida ◽  
Yasushi Hara ◽  
Toru Shimamori
Keyword(s):  
Elevated Temperature ◽  
Silicon Nitride ◽  
Elevated Temperatures ◽  
Tensile Load ◽  
Strength Degradation ◽  
Spall Fracture ◽  
Silicon Nitride Ceramic ◽  
Impact Tests ◽  
The Impact ◽  
Bending Fracture

A new high quality turbine system using monolithic silicon-nitride ceramic is under development. In this study particle impact tests of the silicon-nitride have been tried at room and elevated temperatures with and without tensile load, which simulates centrifugal force of blade rotation. In the experiment 1 mm diameter particle is impacted at velocities up to 900 m s−1. In this paper, critical velocities for bending fracture and Hertzian cracks are examined. Moreover, strength degradation at elevated temperature and spall fracture of the blade are discussed. The main results are: 1) The bending fracture mode critical impact velocity for soft particles is higher than that for hard particles. 2)The impact parameter ϕ for initiation of Hertzian cracks ranges 1.08×10−5 – 1.56×10−5 for the materials tested. 3)Strength degradation at elevated temperature was clearly observed. 4) In the impact tests on blades spall fracture, which was caused by interaction of stress waves, appeared.

scholarly journals The impact of elevated temperature and drought on the ecology and evolution of plant–soil microbe interactions

2019 ◽  
Vol 108 (1) ◽  
pp. 337-352 ◽  
Author(s):  
Pil U. Rasmussen ◽  
Alison E. Bennett ◽  
Ayco J. M. Tack
Keyword(s):  
Elevated Temperature ◽  
Soil Microbe ◽  
Plant Soil ◽  
Microbe Interactions ◽  
The Impact

scholarly journals Effect of incorrect mix ratio on strength of two component adhesive Butt-Joints tested at elevated temperature

2018 ◽  
Vol 244 ◽  
pp. 01019
Author(s):  
Jakub Szabelski
Keyword(s):  
Elevated Temperature ◽  
Material Properties ◽  
Mixed Type ◽  
Epoxy Adhesive ◽  
Future Research ◽  
Butt Joints ◽  
Adhesive Material ◽  
Epoxy Adhesives ◽  
Two Component ◽  
The Impact

The aim of this study was to determine the impact of the incorrect mix ratio on the strength of joints bonded with a commercial epoxy adhesive compo-sition. The performance of cold-cured as well as accelerated cured butt joints was monitored at elevated temperature conditions. The obtained data was subjected to statistical analysis to show the correlation between joint strength at high temperature and incorrect mix ratio. The degradation of adhesive material properties with increase of hardener ratio in adhesive material was observed, as well as the change in failure type from mixed type to clearly cohesive (for inadequate volume of harde-ner) or adhesive (for excessive amount of hardener). Surprisingly insufficiency of hardener doesn’t affect the strength of joint in such manner. General recommend-dation were drawn for the preparation of two-component epoxy adhesives for joints to be used in elevated temperature, particularly when uncertainty regarding the correct resin/hardener mix ratio and future research was planned.

Shape stability of chosen thin wood based panels after heating

2019 ◽  
Vol 106 ◽  
pp. 85-89
Author(s):  
MACIEJ SYDOR ◽  
Bartosz Pałubicki
Keyword(s):  
High Temperature ◽  
Elevated Temperature ◽  
Thin Plate ◽  
Dimensional Stability ◽  
Power Supplies ◽  
Short Term ◽  
Shape Stability ◽  
Short Term Exposure ◽  
The Impact

Shape stability of chosen thin wood based panels after heating. Lignocellulose board materials are commonly used for furniture construction. Typically, these are particle boards, fibreboard or plywood with thicknesses from 10 to 20 mm, however, some furniture elements are made of thin boards with a thickness of 3-4 mm (back walls, bottoms of drawers and others). Modern furniture uses built-in components that are a source of heat, such as lamps, power supplies, ovens. Local high temperature may negatively affect the shape stability of thin lignocellulose plates. The aim of the research described in this article was to determine the impact of shortterm exposure to high temperature on the dimensional stability of selected thin plate furniture materials. Four different HDF boards with nominal thicknesses of 3 mm and four different plywood boards with nominal thicknesses of 2 to 4 mm were tested. The test samples were subjected to a short-term exposure to temperatures of up to 250°C. As a result of the tests, it was found that HDF boards are characterized by a much higher shape stability at elevated temperature than boards made of plywood.

scholarly journals Impact of elevated temperature on rice productivity: A case of Lalitpur, Nepal

2016 ◽  
Vol 4 ◽  
pp. 19-22
Author(s):  
Ambika Ghimire ◽  
Yubak Dhoj G.C. ◽  
Binod Baniya
Keyword(s):  
Elevated Temperature ◽  
Oryza Sativa L ◽  
Abiotic Factors ◽  
Rice Variety ◽  
Soil Nutrient ◽  
Growth Period ◽  
Crop Productivity ◽  
Straw Yield ◽  
Important Crop ◽  
The Impact

Rice (Oryza sativa L.) is the second most important crop in the world after wheat and also the most important crop in Nepal. The production of rice is influenced by various biotic and abiotic factors. Temperature is the major constraint for the crop yield. The present experiment was conducted to study the impact of temperature on straw and crop productivity from June to October 2014. The experiment was conducted under temperature control chamber, in which temperature was elevated from the ambient level by 2ºC and 3ºC for the entire crop growth period. Grain and straw yield was measured using electronic weighing machine. Maturity of grain was 10 and 7 days earlier at elevated temperature by 3ºC and 2ºC respectively. Under similar condition of water depth, plant spacing, rice variety and soil nutrient, rise in temperature up to 2ºC is favorable for rice straw yield and crop productivity. Yield loss under elevated temperature by 3ºC is due to floret sterility. Further research on temperature resistance rice variety is necessary.

scholarly journals The Influence of the Content of Furfuryl Alcohol Monomer on the Process of Moulding Sand's Thermal Destruction

2014 ◽  
Vol 59 (3) ◽  
pp. 1093-1096 ◽  
Author(s):  
St. M. Dobosz ◽  
D. Drożyński ◽  
J. Jakubski ◽  
K. Major-Gabryś
Keyword(s):  
European Union ◽  
Elevated Temperature ◽  
Furfuryl Alcohol ◽  
Thermal Deformation ◽  
Thermal Destruction ◽  
Casting Defects ◽  
The European Union ◽  
Alcohol Content ◽  
Moulding Sand ◽  
The Impact

Abstract The article discusses the issue of the influence of furfuryl alcohol content in resin binders on properties of moulding sand at elevated temperature. Reducing the share of this component - due to the requirements of the European Union regarding its toxicity - may cause a decrease in temperature of moulding sands’ destruction and, consequently, the thermal deformation of moulds and the creation of many casting defects. The study examined the impact of the furfuryl alcohol content of the thermal destruction processes and on the strength of the moulding sand at an ambient temperature and the tendency to thermal deformation.

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