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Online since: July 2014
Authors: Ge Liu, Hai Bing Zhang
Speech recognition strongest, but semantic understanding and vertical data is weak
SogouYY semantic understanding powerful capabilities, vertical data-rich , quiz outstanding results , and integration of knowledge cubic Sogou , but its own voice recognition technology is weak, the combined effect of the current best
Powerful voice recognition engine should be a speaker independent speech recognition system , with excellent recognition rate , providing comprehensive development support , provides a wealth of easy-to- use tools , and core technology reached the international advanced level. 1. front-end speech processing.Front-end voice processing refers to the use of signal processing methods for speaker voice detection, noise reduction pretreatment in order to get the most appropriate treatment voice recognition engine
After the completion of the terminal will get to work on , such as cloud computing and storing data vertically result , quiz results , structured knowledge .
SogouYY semantic understanding powerful capabilities, vertical data-rich , quiz outstanding results , and integration of knowledge cubic Sogou , but its own voice recognition technology is weak, the combined effect of the current best
Powerful voice recognition engine should be a speaker independent speech recognition system , with excellent recognition rate , providing comprehensive development support , provides a wealth of easy-to- use tools , and core technology reached the international advanced level. 1. front-end speech processing.Front-end voice processing refers to the use of signal processing methods for speaker voice detection, noise reduction pretreatment in order to get the most appropriate treatment voice recognition engine
After the completion of the terminal will get to work on , such as cloud computing and storing data vertically result , quiz results , structured knowledge .
Online since: August 2014
Authors: Lin An Gao
ETR was plotted against irradiance, and maximum relative electron transport rate (ETRmax), photosynthetic efficiency (α) were calculated by fitting the RLCs data to an exponential function [4]
Data analysis One-way ANOVA was used to test for site differences in photosynthetic variables (ETRmax, α, Ek).
(ETRmax and PAR data were log10(x)-transformed prior to analysis).
The deep water species positioned in depths over 10 m subject to severe light limitation and lack of reduction in α at midday.
Data analysis One-way ANOVA was used to test for site differences in photosynthetic variables (ETRmax, α, Ek).
(ETRmax and PAR data were log10(x)-transformed prior to analysis).
The deep water species positioned in depths over 10 m subject to severe light limitation and lack of reduction in α at midday.
Online since: August 2013
Authors: Rong Di Liu, Jian Guo Zheng, Zhi Yuan Li, Kai Zhang
This paper worked on the geological conditions and measured datas of ground surface settlement caused by shield construction at the South Gate of No.2 metro line in Xi'an, the traditional prediction formula of ground surface settlement was fitted with the measured settlement values of the natural ground surface, and proposed a modified prediction formula.
In 1969, Peck collected and analysed the measured data of ground surface settlement caused by a large number of different types of underground construction, and proposed the concept of ground loss, obtained the regression model of a series of the settlement trough’s approximate width related with the stratum, without considering the soil drainage consolidation and creep deformation, namely Peck formula[1].
two-dimensional nonlinear finite element parameters analysis, on this basis, Han Xuan[7] proposed the concept of modified stiffness approach (BGI method), the basic formula is summarized as follows: the foundation’s settlement trough curve of the building with a continuous and uniform structure stiffness can be described with Gaussian curve, namely: (5) V1S represents the ground loss coefficient of the settlement curve of the building’s cross section, it can take the same value with the natural foundation due to it’s mainly affected by the construction and formation conditions, that is the ground loss of natural formation, taken as 0.75%; Ks is the settlement trough width parameter, it can be described as the following formula considering the main factors of foundation depth and building stiffness: (6) K is the settlement trough width coefficient of the natural ground surface, and it can be selected based on experience or observation data
Taking into account the reduction factor ζi of the masonry wall, the core soil of the wall, foundation and door opening, the sectional shear stiffness M is approximate 600 ×109N after calculation, stiffness correction factor = 2.27.
This paper presents a formula combining the existing Peck formula and modified stiffness approach together to predict surface settlement induced by shield tunnelling, and the actual project monitoring datas show that it can be used to estimate the ground surface settlement induced by shield tunnelling of Xi’an subway construction.
In 1969, Peck collected and analysed the measured data of ground surface settlement caused by a large number of different types of underground construction, and proposed the concept of ground loss, obtained the regression model of a series of the settlement trough’s approximate width related with the stratum, without considering the soil drainage consolidation and creep deformation, namely Peck formula[1].
two-dimensional nonlinear finite element parameters analysis, on this basis, Han Xuan[7] proposed the concept of modified stiffness approach (BGI method), the basic formula is summarized as follows: the foundation’s settlement trough curve of the building with a continuous and uniform structure stiffness can be described with Gaussian curve, namely: (5) V1S represents the ground loss coefficient of the settlement curve of the building’s cross section, it can take the same value with the natural foundation due to it’s mainly affected by the construction and formation conditions, that is the ground loss of natural formation, taken as 0.75%; Ks is the settlement trough width parameter, it can be described as the following formula considering the main factors of foundation depth and building stiffness: (6) K is the settlement trough width coefficient of the natural ground surface, and it can be selected based on experience or observation data
Taking into account the reduction factor ζi of the masonry wall, the core soil of the wall, foundation and door opening, the sectional shear stiffness M is approximate 600 ×109N after calculation, stiffness correction factor = 2.27.
This paper presents a formula combining the existing Peck formula and modified stiffness approach together to predict surface settlement induced by shield tunnelling, and the actual project monitoring datas show that it can be used to estimate the ground surface settlement induced by shield tunnelling of Xi’an subway construction.
Online since: November 2021
Authors: Alexandr Arshanitsa, Galina Telysheva, Yegor Akyshin, Alexandr Semenischev
Each experiment was repeated three times and the data were averaged.
The deviation from additivity is explained by the increase of the heating efficiency up to 51% (close to the specification of the commercial MW oven) with an increase in the input power due to a shorter contact of the heated substrate with the cold wall of the chamber and, therefore, the reduction of the heat dissipation outside.
Taking into account both the heating efficiencies data and the variation of heating rates, it was calculated that the summing of the energy of three MW generators with the efficiency close to 100% was achieved.
Analytical pyrolysis data have revealed that, at a low temperature, MW processing promotes the transition of secondary phenolic metabolites into solution in comparison with modern accelerated solid extraction (ASE) using conventional heating.
The deviation from additivity is explained by the increase of the heating efficiency up to 51% (close to the specification of the commercial MW oven) with an increase in the input power due to a shorter contact of the heated substrate with the cold wall of the chamber and, therefore, the reduction of the heat dissipation outside.
Taking into account both the heating efficiencies data and the variation of heating rates, it was calculated that the summing of the energy of three MW generators with the efficiency close to 100% was achieved.
Analytical pyrolysis data have revealed that, at a low temperature, MW processing promotes the transition of secondary phenolic metabolites into solution in comparison with modern accelerated solid extraction (ASE) using conventional heating.
Online since: January 2012
Authors: Yuan Yuan Zhao
China, as a country of high energy consumption needs to start from the inherent laws of energy conservation and emission reduction and of low-carbon development, to find the sources of enormous social wastes and environmental pollutions in China.
Conflict between Cost Reduction and Environmental Protection In the total cost of logistics, in addition to the cost of procurement of goods, the transportation cost accounts for a higher proportion than the cost of any other logistics activity does.
Conflict between Speed Control and Environmental Protection According to data released by the NDRC, in 2009 the total freight tonnage of the whole society was 27.643 billion tons, of which 20.969 billion tons were highway freight volume, with the proportion up to 75.8%.
Conflict between Cost Reduction and Environmental Protection In the total cost of logistics, in addition to the cost of procurement of goods, the transportation cost accounts for a higher proportion than the cost of any other logistics activity does.
Conflict between Speed Control and Environmental Protection According to data released by the NDRC, in 2009 the total freight tonnage of the whole society was 27.643 billion tons, of which 20.969 billion tons were highway freight volume, with the proportion up to 75.8%.
Online since: October 2010
Authors: Shan Ping Li, Jun Feng Lian, Han Lin Cao
It has been known that a reduction reaction occurs on the gas diffusion electrode via a two-electron reaction pathway to generate hydrogen peroxide which can oxidize and degrade the difficulty biodegraded organic compounds.
And so far, noble metals such as Pt (or Pt-based alloys) [18-23] and Ag [24] were commonly applied as the catalyst as they were found to show a high activity for oxygen reduction.
The average particle size of the crystals was calculated from XRD data using the Scherrer equation [30].
And so far, noble metals such as Pt (or Pt-based alloys) [18-23] and Ag [24] were commonly applied as the catalyst as they were found to show a high activity for oxygen reduction.
The average particle size of the crystals was calculated from XRD data using the Scherrer equation [30].
Online since: August 2011
Authors: Yasunori Harada
Introduction
There is a need for vehicle weight reduction in the automotive industry with an eye to energy conservation, which in turn requires an extensive durability for mechanical component parts that make up automobiles.
Each data is shown positioned 0.030 mm from the top surface.
In case of processing temperature of 723 K, compressive residual stress at the surface is significantly reduced by about 70 % in reduction ratio.
Each data is shown positioned 0.030 mm from the top surface.
In case of processing temperature of 723 K, compressive residual stress at the surface is significantly reduced by about 70 % in reduction ratio.
Online since: May 2012
Authors: Yong Chen, Hao Ran Yuan, Li Fang Deng, Hong Yu Huang, Noriyuki Kobayashi
Compared with other waste disposal technologies, thermal treatment has several advantages: (1) Volume reduction; ( 2) Economic: could get gas and fuel oil of high heating value ; (3) The harmless and beneficial treatment efficiency is high.
However, available data indicated that the dioxins concentration in the flue gas increasing with the carbon monoxide concentration, so the oxygen supplication during this part of treatment is a key factor for the formation of dioxins
Children may behavioural disturbances, learning and concentration difficulties when affected by Pb, and people who have been exposed to lead for a long time may suffer from memory deterioration, reaction time lag and understand ability reduction.
However, available data indicated that the dioxins concentration in the flue gas increasing with the carbon monoxide concentration, so the oxygen supplication during this part of treatment is a key factor for the formation of dioxins
Children may behavioural disturbances, learning and concentration difficulties when affected by Pb, and people who have been exposed to lead for a long time may suffer from memory deterioration, reaction time lag and understand ability reduction.
Online since: October 2011
Authors: Hai Yan Li, Hong Shao
One unit of activity for SOD, POD and APX was defined as the amount of enzyme which inhibited 50% of the photochemical reduction of nitroblue tetrazolium, reduced 1 mmol H2O2 per min and formed 1 mmol oxidized ascorbate, respectively.
The data presented as mean ± standard error (S.E.).
However, our results show that SNP supply resulted in a reduction in Cd-induced the increase of antioxidant enzyme activities.
The data presented as mean ± standard error (S.E.).
However, our results show that SNP supply resulted in a reduction in Cd-induced the increase of antioxidant enzyme activities.
Online since: September 2014
Authors: Hao Li
Fig. 1 Pushover curve convert to capability curve
With the resistance curve of the bilinear equivalent SDOF system, the seismic displacement response of the structure is:
(2)
In which, Ry is the yield strength reduction factor; Tn is the elastic period of equivalent SDOF system; A is the maximum acceleration response of the SDOF system based on elastic response spectrum; μ is the ductility coefficient, which can be determined by simplified function of Ry - μ - Tn relationship.
Result of pushover analysis: ratio of yield strength to structure weight is 0.12; yield displacement is 260mm; ratio of ultimate strength to structure weight is 0.15; ultimate displacement is 480mm; stiffness hardening rate is 1%; equivalent period Tn is 2.98s; strength reduction factor Ry is 1.65 corresponding to the horizontal seismic coefficient of 0.1984.
In addition, in case of insufficient data, proposed reliability index can mix other type of uncertainty with randomness, which has certain significance for the engineering application of reliability theory.
Result of pushover analysis: ratio of yield strength to structure weight is 0.12; yield displacement is 260mm; ratio of ultimate strength to structure weight is 0.15; ultimate displacement is 480mm; stiffness hardening rate is 1%; equivalent period Tn is 2.98s; strength reduction factor Ry is 1.65 corresponding to the horizontal seismic coefficient of 0.1984.
In addition, in case of insufficient data, proposed reliability index can mix other type of uncertainty with randomness, which has certain significance for the engineering application of reliability theory.