Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: October 2011
Authors: Li Juan Han, Chong Da Li, Lin Li, Guo Qin Liu
Using antioxidant is one of the ways that could solve this problem, but the antioxidant could also affect the activity of the sea buckthorn oil and reduce its value.
The advantages of ultrasound include lower energy consumption, less surfactant usage and a more homogeneous emulsion compared to a mechanical process [11].
The PLGA dosage was the next most important factor on the product of PLGA microspheres.
The effect of the other factors is slight.
[5] Stephan Drusch S., Serfert R.and Schwarz K, “Microencapsulation of fish oil with n-octenylsuccinate-derivatised starch: Flow properties and oxidative stability,” Eur.
Online since: March 2015
Authors: Yu Xin Zhang, Mao Shan Li, Songm Min Jia, Rong Zhang, Xin Li, Yi Hua Pan, Su Fen Lu, Ya Hui Yang, Yu Dong Lu
And China is one of the countries affected by most widely distributed landslide hazards all over the world[1].
Table 3 and Table 4 show the statistic results of the physical mechanical properties indices and shear strength parameters of the main landslide body soil.
Table 3 Statistic results of physical mechanical properties indices of the main landslide body soil (Statistic frequency (FRE), Maximum (Max), Minimum (Min), Mean, Standard deviation (S.D.), Coefficient of Variable (C.V.))
Stress concentration effects: The stress concentration is a kind of phenomena that partial stress significantly increase which is caused by topography changes of the slopes due to their own or external factors.
Triggering effects of heavy rainfall: Heavy rainfall is a quick process and can quickly trigger the landslide, which is caused by multi-coupling factors: Heavy rainfall infiltration increases hydrostatic pressure of landslide body and accelerates the shearing process; while rain continues to seepage along the dominant belt of migration which strengthens the hydrodynamic pressure inside the landslide and forms an "uplift force" toward the slide mass near slip zone to accelerate landslide slip.
Online since: September 2013
Authors: Xiao Yu, De Yin Zhang
Introduction Riveting is an important mechanical process in the traditional industrial production and has been widely used in the field of aviation production [1].
So the heating temperature and heating time are key factors for riveting quality.
Due to operator’s factors and environmental factors, the current through rivet is not easy to keep stable.
The ACS712 also has important properties of low noise, fast response, low error, and high sensitivity.
Large fluctuation of heating current will affect the heating riveting effect of titanium alloy rivet.
Online since: February 2012
Authors: Yong Feng, Yuan Zhou, Chun Yan Jiang
Because fine-grained soils in relatively shallow strata distribution, so the building foundation and slope as supporting the anchoring of the soil is susceptible to freeze-thaw actions destroy, coarse-grained soils freeze-thaw cycles, before and after the soil physical, mechanical caused by changes of deep foundation pit slope instability, is one of the problems the deep foundation pit supporting must to face, the paper study on the change of sheer strength characteristic parameter and soil nail firmness of effect in the condition of freezing-thaw cycling.
Test the determination of soil sample physical parameters Experiment chooses the powder soil and clay which is widely used as a building foundation as test materials in XinJiang region, Freeze-thaw cycle in different temperature scope and different number of freeze-thaw cycle as influence factors, for the freeze-thaw cycle test and shear tests (Consolidation fast and direct shear tests),as shown in table 1-1.
Will formula (4-5), (4 to 9) generation into the formula (5-1): (5-2) Table 5-1 Freeze-thaw cycle under different conditions of fine grained soil nail middle-earth fight pull force T value Temperature range Cycling times Top drawing force oC times kN (-5o~5o) 5 (-5o~5o) 10 (-5o~5o) 15 (-15o~15o) 5 (-15o~15o) 10 (-15o~15o) 15 (-25o~25o) 5 (-25o~25o) 10 (-25o~25o) 15 From the table 5-1 freeze-thaw cycle that the different temperature and different times as the influence factor under cycle, fine grain of soil nail middle-earth fight pull force value, by comparing different influence factors of soil nailing freeze-thaw resistance to pull force value, it could be concluded: (1)(-5o~5o)freeze-thaw cycle temperature range, T5>T10>T25; (2)(-15o~15o)freeze-thaw cycle temperature range, T5>T10>T25; (3)(-25o~25o)freeze-thaw cycle temperature range, T5>T10>T25; (4)The same natural
Conclusion Taking widely used as a building foundation fine-grained soils in XinJiang region is as the research object, Completed fine-grained soils in different temperature scope and different times as the effect factors of the cycle freeze-thaw cycle, according to the test results obtained fine-grained soils freeze-thaw cycle in different temperature becomes poor scope and different cyclic number freeze-thaw conditions, the shear strength parameters stick together and internal friction angle Ф force c, change law and will c, Ф value change the results applied to the deep foundation soil nailing support, the role that thawing relatively nail drawing force change at the top, analysis of soil nail anchor the soil anchorage effect.
(4) In this formula (5-1) same freeze-thaw cycles that temperature becomes poor range, fine grain shear strength parameters c, Ф value with the increase of number of freeze-thaw cycle decreases, and soil nail resistance force T values will pull out the increase of number of freeze-thaw cycle with reduced.Acknowledgements: The XinJiang uygur autonomous region of scientific research plan "fine-grained soils freeze-thaw cycle in the physical and mechanical properties of the research and application" (project Numbers: XJEDU2009S41) Corresponding author: Yong Feng E-mail: xjnydxfy@163.com References(In Chinese) [1] Heilongjiang Province Institute of Cold Area Building Research.
Online since: June 2019
Authors: Jean Pierre Bergmann, Klaus Schricker
Therefore, this article focuses on the interaction between temperature distribution, different joining times and material properties on surface penetration in thermal joining.
Further investigations on the morphology and the heat-affected zones in plastic and metal are not the subject of the investigations at this point and are discussed in detail in [15].
Characteristic fracture surfaces are assigned to the results after the mechanical testing.
In contrast to the state of the art, the joining time in the considered interval (1…10 s) could be excluded as influencing factor.
Further investigations will be carried out with various thermoplastic materials in order to understand and generalize the influence of material properties, e. g. viscosity and the effect of different structure geometries.
Online since: February 2019
Authors: Arseny O. Artemov, Stanislav V. Naumov, Kirill I. Belousov
Further research will be directed to the research of welding-technological properties of fused welding fluxes and the chemical composition of welded metal produced by the developed welding materials.
Skorina, Effect of technological factors of manufacture of low-hydrogen electrodes on hydrogen content in deposited metal, Avtomaticheskaya Svarka, № 8 (2013) 14-25
Lyashko et al., Study of the properties of glasses after plasma treatment, International Journal of Applied and Fundamental Research, №12 (2010) 102-104
Rymuszka, Surface properties of glass plates activated by air, oxygen, nitrogen and argon plasma, Glass Physics and Chemistry, №6 (42) (2016) 6 535-541
Kulkov, Mechanical Properties Research of Corundum Ceramics at Change of Porosity and the Crystallites Sizes, Journal of Siberian Federal University.
Online since: October 2017
Authors: Zilgma Irbe, Dagnija Loca, Armands Buss, Lasma Malniece
The modification of the size and shape of the particles should allow for more modifications in other cement properties.
Conclusions about several factors that affect the α-TCP content in the thermally treated synthesis product can be drawn.
Bouler, Calcium phosphate cements for bone substitution: Chemistry, handling and mechanical properties, Acta Biomater. 10 (2014) 1035-1049
Berzina-Cimdina, Synthesis and properties of α-tricalcium phosphate from amorphous calcium phosphate as component for bone cements, Key Eng.
Rey, Amorphous calcium phosphates: Synthesis, properties and uses in biomaterials, Acta Biomater. 6 (2010) 3362-3378
Online since: April 2016
Authors: Marcela Morvova, Peter Tonhauzer
Along the pyrolysis device are located off-take places and sensors (flow rate, temperature, humidity, gas concentrations (CO, CO2, NOX, CH4, H2, O2)) for analysing the physical and chemical properties influencing the course of pyrolysis.
The length of one pyrolysis cycle depends on several factors such as temperature, shape and density of raw materials.
The cause of this phenomenon is currently unknown, we expect the impact of changes in physical properties and the effect of chemical or structural changes in biomass.
Long-term storage of PET bottles and tires has not significant impact on their properties.
In combination with less quality fuels can improve their properties and ensure the required limits of the heating value [12; 6; 7].
Online since: October 2011
Authors: Bao Guo Ma, Jing Ran Wang, Xiang Guo Li
Testing with the press machine of TYE-300 made in Wuxi mechanical company.
Rimstidt, Mineralogy and surface properties of municipal solid waste ash, Environ.
Imada, Chemical speciation and leaching properties of elements in municipal incinerator ashes, Waste Manage. 16 (1996) 527–536
Chaudhary, Factor affecting hazardous waste solidification/stabilization: a review, J.
Online since: July 2014
Authors: Peng Xian Zhang, Jin Zhang, Xiang Jian Xu
The behavior of electrode wear and failure not only reduce the electrode tip working life, but also affect the reliability of welding quality [2-3].
These properties can meet the measurement requirements of tiny changes in surface of the electrode tip.
The center circle and its adjacent to the annular region is the direct contact area of electrode tip and the workpiece, the second and third ring area is joint heat affected zone and oxidation zone.
The performance of the SVM mainly is affected by the nuclear parameter and error penalty factor C.
Penalty factor C is used to determine the ratio of the incredible range data subspace and empiric risk, through adjusting the experience error level in the feature space to influence learning machine generalization ability [9].
Showing 23101 to 23110 of 26166 items