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Online since: July 2014
Authors: Rong Ji Liu, Yun Zhao Li, Chun Xia Cao
Hash function and data structure are both the bottleneck technology.
At present, it is very hard to design a new revolutionary data structure.
The test data herein is from the Internet, and contains more than 7,400 thousands 5-tuple.
To resolve the conflict, in addition to a function with good uniformity, but also depends on the data structure.
However, for connection management in high-speed networks, the multiple slots data structure is an excellent choice.
Online since: August 2012
Authors: Daniel Thomazini, Maria Virginia Gelfuso, Glauber Márcio da Silva Luz, Pedro Perri Pinto, Antônio José Faria Bombard
The relation between the BIT particles size with the ER response was observed, presenting an increase of the shear stress with the reduction on particle size.
By analyzing the dielectric data of currently used ER materials, an empirical criterion has been proposed for selecting ER material: the particle dielectric loss tangent should be approximately 0.10 at 1000 Hz [[] Wen W.
Online since: September 2016
Authors: Sergey A. Pinaev, Yuri B. Potapov, Arutyun A. Arakelyan, Andrei D. Barabash
The paper presents composition of innovative material used for corrosion protection of reinforced concrete structures and experimental data on the increase in cracking of reinforced concrete elements coated with polymer-cement protective layer against corrosive media.
The study resulted in experimental data on the element load-carrying capability, relative level of crack formation, deflection growth with load increase, and plotting of the "moment-bending" diagram for all elements.
Reduction of peak stresses in weak points of concrete with the help of the polymer layer. 3.
All the above factors explain the nature of the crack resistance improvement effect and are used in the review of experimental data and calculated conditions.
As a result of studies, we obtained experimental data on load-carrying capacity of the elements, relative level of cracks formation, growth of deflection with load increase.
Online since: May 2020
Authors: Yu. Astapov, M. Sokolova, D. Khristich
The results of the indentation problem solution are in good agreement with experimental data.
The results of the numerical solution demonstrated good agreement with the data obtained from the experiment which was carried out at the kinematic loading fixture.
The experimental data are given in the form of the dependence of the magnitude of the force applied to the stamp from the penetration depth .
The comparison of calculated curves with experimental data shows that up to a relative depth of penetration equal to , which corresponds to deformations about 15%, the experimental data are well described both by tensor linear relations Eq. 7 and by physically nonlinear relations Eq. 11.
The numerical aspects of the model implementation are considered in detail, and its verification is carried out by comparison with the obtained experimental data.
Online since: June 2015
Authors: Gigel Paraschiv, Gheorghe Voicu, Mirela Dincă, Georgiana Moiceanu
Introduction The worldwide reductions of conventional energy resources, as well as the restrictive legislation regarding the level of environmental pollution, have created premises for the identification and exploitation of new economic and clean energy sources.
According to the latest available data, it reached 8.3 million t of oil equivalent in 2009, fact which represents an increase of 4.3% compared to 2008.
Conclusions Anaerobic digestion process of animal manure offers several environmental, agricultural and socio- economic benefits throughout improved fertilizer quality of manure, considerable reduction of odors and inactivation of pathogens and last but not least production of biogas production, as clean, renewable fuel, for multiple utilizations.
European directives relating to the renewable energy production, the reduction of greenhouse gas emissions and sustainable waste management is based on the commitment of Member States to implement appropriate measures to reach them.
The concern for environmental risks reduction, sustainable development and use of renewable energy sources, have gained important valences in recent years, fact that led to adopt significant measures in our country, among which is found the process of anaerobic digestion.
Online since: December 2024
Authors: Sri Mulyati, Wahyuni Wahyuni, Abdullah Abdullah, Yulia Hayati
Results of XRF Zeolite Chemical Composition Based on the XRF results chemical composition data of natural zeolite, river sand, sea sand are obtained, as shown in Table 2.
These hydration products contribute to an increased density in the concrete, resulting in a notable reduction in absorption values.
However, the reduction is not too large when compared to concrete without zeolite (see table 4).
Compressive strength of concrete with sea sand and seawater at ages 14 and 56 days However, the reduction is not too large when compared to concrete without zeolite (see table 4).
The addition of zeolite to the cement-sand mixture can cause an increase in the strain rate at failure, as well as a reduction in brittle behavior in concrete (Mola-Abasi and Shooshpasha 2016a).
Online since: June 2019
Authors: Dan Mihai Constantinescu, Calin Dumitru Coman
Poorly designed hybrid joints are not only a source of failure but could lead to a reduction in durability and reliability of the whole structure.
The major disadvantage of the CDM models is the huge amount of test data required for model calibrations.
Because these properties degradation models used constant factors for elastic properties reduction due to damage growth, the models weren’t be able to predict the bearing final failure.
Nonlinear shear deformation The simulation must consider the two most important nonlinear mechanisms: lamina nonlinear shear deformation and stiffness reduction due to damage accumulation at lamina level.
After the point A, the damage accumulation determines joint stiffness reduction gradually and the characteristic curve becomes nonlinear.
Online since: January 2019
Authors: Sen Yang, Yuan Qin, Guo Qing Wu, Ming Huang, Alimjan Ablat, Han Lu Jiang, Zi Yun Chen
BMs were subjected to compression with the height reduction of 5 % to 15 % in the compress speed of 0.08 mm/s at room temperature, and then annealed at temperature ranging from 400 to 700 °C for 15 min.
Typically, EBSD data includes the Cartesian coordinate location of each orientation corrected for the 70° tilt of the sample.
For the series specimens with 5 % reduction ratio, the pre-strain is so low that the low stored energy seems unable to supply sufficient driving force to trigger recrystallization.
When the reduction ratio increased to 10 % and 15 %, the grain size increased dramatically with increasing temperature, especially when the temperature is not higher than 600 °C.
Though the highest fraction of low-ΣCSL boundaries was obtained via 5 % reduction combining annealing at 700 °C, the grain size grows too large for practical use at this condition.
Online since: July 2013
Authors: Ibram Ganesh
The Arrhenius plots plotted based on the data obtained from the study of effect of temperature on the rates of formation and decomposition of formic acid and formaldehyde in the temperature range 30-50°C revealed the activation energies of these reactions.
Reduction of CO2 to methanol by following chemical methods.
Guo, CO2 activation and total reduction on titanium (0001) surface, J.
Peris, A new approach to the reduction of carbon dioxide: CO2 reduction to formate by transfer hydrogenation in iPrOH, Organometallics, 29 (2010) 275-277
Utility Data Institute, 2003.
Online since: September 2010
Authors: Yoshimi Takeuchi
Based on the defined shape of the inducer by use of 3D-CAD system, the developed CAM system finally generates interference-free NC data for 5-axis control ultraprecision Fig. 7 Inducer to be machined Fig. 8 Configuration of the inducer Fig. 9 Collision avoidance between a diamond Fig. 10 Cutting simulation milling cutter and a workpiece milling, taking account of the collision between a diamond milling cutter and a workpiece, as illustrated in Figure 9.
Before machining, cutting simulation is performed on the basis of generated NC data, whose result is shown in Figure 10.
From the simulation, it is confirmed that the generated NC data can manufacture the inducer.
As the demand to rapidly produce microparts, the reduction in lead-time to machining will be strongly requested.
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