Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: August 2013
Authors: Hong Sun, Zhi Jie Li, Xue Nan Zhao
The CO with high energy desorbs easily from the surface of the catalyst leading to the reduction of the poisonous effect of the CO to the HT-PEM fuel cell.
The electrochemical reaction site for the reduction reaction of the hydrogen sharply decreases.
(a) (b) Fig.5 The effects of CO on the AC impedance in the HT-PEM fuel cell  The data of the AC impedance of the HT-PEM fuel cell obtained by the experiments is analyzed based on the equivalent circuit method.
Online since: October 2010
Authors: Lei Zhu, Jing Yang
To this end, it is need to do a series of steps as binary processing, noise reduction, remove frame [2].
When faced with the need for connectivity up fork merge field, with the design of data structures in this article connectivity components of the merger.
Practice has proved that the above connected component generation, noise reduction, to the border and the word segmentation algorithm effective.
Online since: June 2018
Authors: Tatsuo Fujimoto, Noboru Ohtani, Kiyo Okawa, Masakazu Katsuno, Shinya Sato, Hiroshi Tsuge, Kentaro Shioura, Yuina Mannen
The temperature dependencies exhibit characteristic behaviors depending on the current flow direction and the number of high-temperature annealing rounds (the abrupt jump around 100K in the data for the resistivity parallel to the basal plane after the 3rd annealing is an artifact).
The mechanism of the observed reduction of the SF density is yet to be clarified.
The measured SF densities in the crystals, where the reduction of SF density was observed after annealing, were well correlated with the resistivity changes.
Online since: September 2010
Authors: Hiroyuki Sasahara, Erween Abdul Rahim
Numerous precious data on surface integrity, including surface roughness, microhardness, plastic deformation and residual stress when machining Inconel 718 have been published.
According to Ezugwu et al. [3], increasing the cutting speed also attributed to the reduction of the friction coefficients, which resulted in low friction at the tool-workpiece interface.
This enables the reduction of friction and heat between the tool-workpiece interface [5].
Online since: May 2015
Authors: Felicia Veronica Banciu, Cristian Gheorge Turc, Ion Grozav
The tolerance allocation is determined also using the cost versus tolerance data available using optimization techniques [3, 4], considering the demands of manufacturing cost and product quality [5] are developed approaches based on the Shapley Value Method (SVM) of coalitional game theory but equally in [6] it is presented a tolerance allocation approach based on a tolerance allocation strategy that uses time as the basis for optimization, strategy suitable for use in a Concurrent Engineering (CE) framework.
Inverse of this ratio is the coefficient for proportional reduction P of components tolerance, anterior finding (row 34).
This entire tolerance ratio was multiplied with coefficient for proportional reduction P (row 37).
Online since: January 2014
Authors: Ying Ying Fan, Xiao Xin Wang, Hai Chu Ye, Shu Xia Guan
Introduction Starch-cadmium iodide methods used for oilfield sewage of polyacrylamide (HPAM) mass concentration analysis by SCOGGINS M W et al [1]for the first time,research indicates that adjustment buffer pH to 3.5 can eliminate interference a great quantity of Cl- in the sampe,in the buffer to add too much Al3+ can eliminate interference from Fe3+ and Bi3+ etc high cation.Junming Hu et al[2]choose the stable performance good soluble starch,iodine starch complex have the strongest absorption in the 590 nm place.The results showed that pH is between 3.7 and 4.5 absorbance changes smaller buffer pH adjustment to 4.0 advisable.Shiguang Yang et al[3]with NH4HF4-FeSO4 system instead of sodium formate also concentrate,measuring absorbance in the 420nm place,the method of measuring range from 0~6 mg/L expanded to 0~24 mg/L,and eliminate the absorbance with reduction reaction time increased and falling phenomenon。
Table2 The relationship between bromine water quantity and absorbance bromine water quantity/mL ρ(HPAM) ∕ (mg/L) 10 20 30 40 50 2 0.106 0.187 0.295 0.396 0.479 3 0.111 0.185 0.290 0.393 0.469 2.1.6 The dosage of sodium formate to the influence of the reaction system The experimental process found to join 5ml sodium formate after solution color not change, measuring its absorbance to zero, so that the 5ml sodium formate enough to make too much bromine reduction
Then known by test data that ρ(HPAM)4.5 mg/L,5.0 mg/L,100.0 mg/L in the curve,and ρ(HPAM)4.0 mg/L ot of the curve.Starch-cadmium iodide method measuring the quality of HPAM concentration lower limie is 4.5mg/L and upper limit is 100.0 mg/L。
Online since: August 2013
Authors: Hai Xia Huang, Fu Meng Li, Hao Sun, Yi Hua Feng
One was a reduction in contact length between chip and tool, the other was owed to forming a lubricating film with low shear stress [14].
Different materials in composite tool can play anti-friction in a certain temperature range, which is beneficial to the reduction of the friction coefficient [15].
Different solid lubricant mixed with other different materials, and embedded in the ceramic tool’s position, the number and the shape of the groove, sizes will produce a huge impact on tool performance, but these data have no professional books for reference, only through the large number of experiments improve gradually, and find some better ways.
Online since: November 2015
Authors: Felicia Stan, Ionut Laurentiu Sandu, Alina Mihaela Cantaragiu, Cătălin Fetecău
The initial reduction of the creep compliance is predominantly caused by the reinforcement of the polymer through the nanotubes, so-called chain immobilization due to formation of a significant inter-phase zone of altered polymer mobility surrounding each nanotube [22, 23].
Good nanotube/matrix interfacial bonding provides further creep reduction through frustrated chain disentanglement, stretching and fragmentation of the macromolecule.
Knauss, A note on the determination of relaxation and creep data from ramp tests.
Online since: December 2013
Authors: De Gang Li, Jing Jing Gu, Xue Dong Lin, Miao Miao Zhang, Cheng Cheng Peng
ECU has fuctions of data collection, work condition decision,real-time scheduling, signal output controlling and so on.
References [1] DONGHong-y,i ZHOULong-bao, WANGYing, DENGXiang-bin, PANKe-yu,”reduction of NOx emission of CA498 engine fueled with dim ethyl ether by means of exhaust gas recirculation”, Internal Combustion Engine Engineering, 26(2),44-46,(2005).
Reduction of NOX Emissions from a Light Duty DI Diesel Engine in Medium Load Conditions with High EGR Rates[C].SAE paper 2008-01-0643 [3] WUJun2hua, HUANGZhen, QIAOXin2qi, ZHANGWu2gao,“experimental study of EGR on performance and emissions of a turbocharged DME engine”, Journal of Internal Combustion Engine, 26(2),147-152,(2008).
Online since: December 2014
Authors: Yong Jun Liu, Yue Yao, Xue Wang
As a result, the reduction coefficient of the construction elements with three sides fired is higher than that of with four sides fired.
Zhimei Zhang [9] creates PYZCZL programme by combining the experimental data of Brunswick University of Technology, Germany[10].
In the study of simulating experiments at high temperature, the adopted heating-up curve is usually ISO834 standard heating-up curve, with other heating-up curve negeleted; as for cooling, natural temperature reduction is usually adopted.
Showing 18061 to 18070 of 40609 items