Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: March 2024
Authors: Bambang Waluyo Febriantoko, Agus Yulianto, Agung Setyo Darmawan, A'an Candra Mustika, Patna Partono
The results of the Scanning Electron Microscopy Energy Dispersive X-ray Spectroscopy test of the Mn element in the metal mold was detected at 3.45% and in the sand mold at 0.00%, the Mn sand mold was actually detected on the graph but did not appear in the data table because it was covered by Fe, C, and Si elements.
Basically, the manufacture of these alloys is a reduction process of iron ore or scrap iron and manganese ore in an electric arc furnace, where iron and manganese are melted.
Then save the enlarged data and the surface composition of the tested material and continue the same steps for the next material test.
In the actual graph, Mn can be detected only very little but cannot be written in the data table, because there are many elements detected and only a few Mn is covered by more elements such as Fe as the main ingredient, for table data the Mn element shows a weight of 0.00%, weight sigma 3,06 %, atomic 0.00%, Fe element shows weight 69.60 %, weight sigma 0.77%, atomic 33.72%, C element shows weight 28.70 %, weight sigma 0.73%, atomic 64.64%, Si element shows 1.71%, weight sigma 0.26%, atomic 1.64 %.
Basically, the manufacture of these alloys is a reduction process of iron ore or scrap iron and manganese ore in an electric arc furnace, where iron and manganese are melted.
Then save the enlarged data and the surface composition of the tested material and continue the same steps for the next material test.
In the actual graph, Mn can be detected only very little but cannot be written in the data table, because there are many elements detected and only a few Mn is covered by more elements such as Fe as the main ingredient, for table data the Mn element shows a weight of 0.00%, weight sigma 3,06 %, atomic 0.00%, Fe element shows weight 69.60 %, weight sigma 0.77%, atomic 33.72%, C element shows weight 28.70 %, weight sigma 0.73%, atomic 64.64%, Si element shows 1.71%, weight sigma 0.26%, atomic 1.64 %.
Online since: September 2014
Authors: Mohd Amin bin Abd Majid, Muhammad Sarwar
The data generated through experiments has been validated for the hardness based on input process parameters (welding current, welding voltage, travel speed, welding rod diameter) and the findings from the study revealed that the most important factor influencing the hardness of a Creep-Strength Enhanced Ferritic (CSEF) material welds is the Voltage while other factors have minimum or the least influence for the studied ranges and factors.
Nearly 2:1 reduction in thickness and an increase of 44 to 170% in allowable strength in the 510-570 oC temperature range is noted when compared to P (T) 22 material.
This study is focused on the TIG welded alloy steel pipes welds (Alloy Steel-A335 P91) on construction sites Methodology The steps involved in this investigation are as follows: Step 1: Collection and compilation of data from the field Step 2: Analysis of compiled data Step 3: Application of DOE approach & ANOVA on the data Experimental Procedure and Selection of Process Parameters The main criterion adopted for material selection is based on the composition of the material.
Nearly 2:1 reduction in thickness and an increase of 44 to 170% in allowable strength in the 510-570 oC temperature range is noted when compared to P (T) 22 material.
This study is focused on the TIG welded alloy steel pipes welds (Alloy Steel-A335 P91) on construction sites Methodology The steps involved in this investigation are as follows: Step 1: Collection and compilation of data from the field Step 2: Analysis of compiled data Step 3: Application of DOE approach & ANOVA on the data Experimental Procedure and Selection of Process Parameters The main criterion adopted for material selection is based on the composition of the material.
Online since: February 2019
Authors: Axel von der Weth, Frederik Arbeiter, Dmitry Klimenko, Volker Pasler, Georg Schlindwein
Permeation Data Analysis Considering a Nonzero Hydrogen Concentration on the Low Pressure Detector Side for a Purged Permeation Experiment
Axel von der Wetha*, Frederik Arbeiterb, Dmitry Klimenkoc, Volker Paslerd, Georg Schlindweine
Karlsruhe Institute of Technology, P.O.Box 3640, D-76021 Karlsruhe, Germany
a*axel.vonderweth@kit.edu, bfrederik.arbeiter@kit.edu, cdmitry.klimenko@kit.edu,
dvolker.pasler@kit.edu, egeorg.schlindwein@kit.edu
Keywords: Hydrogen, permeation, diffusion constant, experiment analysis, branch and bound algorithm
Abstract.
In contrast to this, nearly all current available hydrogen permeation literature (Summary in [5]) is related to pure hydrogen isotopes data around 105 Pa partial pressure in the retentate chamber.
The residence time of the purge gas in the permeate chamber and pipe system volume up to the mass spectrometer, generating a distortion (time offset and reduction of slope) in the measurable signal.
Fig. 3: It shows a demonstration example for the impact of a TSF on measured data.
The time difference -shown by the black arrow- between measured data and original data can be corrected by TSF dependent on the relative concentration. 3.1 The FDM-module The description of FDM-module will start with boundary conditions given by phase equilibrium between gaseous Q-phase and Q-concentration inside the membrane in both chambers.
In contrast to this, nearly all current available hydrogen permeation literature (Summary in [5]) is related to pure hydrogen isotopes data around 105 Pa partial pressure in the retentate chamber.
The residence time of the purge gas in the permeate chamber and pipe system volume up to the mass spectrometer, generating a distortion (time offset and reduction of slope) in the measurable signal.
Fig. 3: It shows a demonstration example for the impact of a TSF on measured data.
The time difference -shown by the black arrow- between measured data and original data can be corrected by TSF dependent on the relative concentration. 3.1 The FDM-module The description of FDM-module will start with boundary conditions given by phase equilibrium between gaseous Q-phase and Q-concentration inside the membrane in both chambers.
Online since: February 2012
Authors: Jin Liang Wang
The paper explains the good properties of composite materials shown in the table tennis bat in detail through a data analysis.
The honeycomb composite material structure slab of utility model used for the bottom plate of table tennis has the characteristics of weight reduction, elasticity increase, vibration elimination, control increase, high strength, mild stiffness, and being weather proof, durable and environmental.
The honeycomb composite material structure slab of utility model used for the bottom plate of table tennis has the characteristics of weight reduction, elasticity increase, vibration elimination, control increase, high strength, mild stiffness, and being weather proof, durable and environmental.
Online since: September 2014
Authors: Jun Ling Zhang, Zhou Wen, Xiu Duan Gong
The digital design of mechanical products is usually first reference existing parts, drawings, and experience to make original design data and design requirements, according to the design of digital model is set up, after an analysis of the finite element model according to the analysis results contrast design goal to design or structure parameter changes, to the expected design purpose.
Generally considered when metal products as cathode, mainly by means of heavy precipitation hydrogen reduction and mechanical exfoliation of oxide synthesis results; Anode, mainly by means of the chemical and electrochemical dissolution of the metal, and metal materials precipitate oxygen bubbles mechanical exfoliation of oxide synthesis results.
Generally considered when metal products as cathode, mainly by means of heavy precipitation hydrogen reduction and mechanical exfoliation of oxide synthesis results; Anode, mainly by means of the chemical and electrochemical dissolution of the metal, and metal materials precipitate oxygen bubbles mechanical exfoliation of oxide synthesis results.
Online since: December 2012
Authors: Hong Gang Zhou, Chun Yu Peng, Shou Biao Tan, Qiang Song
Without the half select condition, the proposed 10T cell allows efficient bit-interleaving to provide soft error rate protection and the dynamic power is also decreased significantly due to the reduction in the number of bitlines discharged and charged during the read and write operation.
When column-based write signal is activated, the data will be written into the selected cell.
Because we do not need to consider pull-up ratio and the read margin during the write operation, the two pass gates (M7 and M8) and the portion for storing data can adopt the minimum size design.
References [1] Meng-Fan, C., et al., A Differential Data-Aware Power-Supplied (D2AP) 8T SRAM Cell With Expanded Write/Read Stabilities for Lower VDDmin Applications.
When column-based write signal is activated, the data will be written into the selected cell.
Because we do not need to consider pull-up ratio and the read margin during the write operation, the two pass gates (M7 and M8) and the portion for storing data can adopt the minimum size design.
References [1] Meng-Fan, C., et al., A Differential Data-Aware Power-Supplied (D2AP) 8T SRAM Cell With Expanded Write/Read Stabilities for Lower VDDmin Applications.
Online since: June 2012
Authors: Yong Mei Zhang, Yu Long Xu
Experiment data show that the fusion of multiple classifiers for face recognition has higher efficiency, accuracy of recognition and lower rate of error recognition.
Face identification technology not only avoids users being involved too much but also combines the advantages of contactless data acquisition and convenient hiding without any damage to the users, so it is called the most promising method of verifying the user identification in the 21st century[2].
Because face images are comparatively larger, the number of samples in face recognition is fewer, we extract principal components for data set by using PCA and reduce the dimension of samples.
The features after rank reduction are sent to SVM for study.
Face identification technology not only avoids users being involved too much but also combines the advantages of contactless data acquisition and convenient hiding without any damage to the users, so it is called the most promising method of verifying the user identification in the 21st century[2].
Because face images are comparatively larger, the number of samples in face recognition is fewer, we extract principal components for data set by using PCA and reduce the dimension of samples.
The features after rank reduction are sent to SVM for study.
Online since: July 2013
Authors: You Sheng Zhao, Bin Zhou
Based on the construction environment, theconstructiontechnology, the smaller earthwork excavation of deep high pressure rotary jet grouting pile with undrained caisson combined construction technology combined with monitoring data for the open caisson excavation control is adopted.
The hydrological condition As pore water,the project site of shallow groundwater, supplied by the atmospheric precipitation and surface water, it has certain hydraulic connection with the Yangtze river water level, during exploratory period underground water level buried depth is commonly 0.15 ~ 1.20 m, In case of rain or rainstorm, the underground water level may rise to the ground.According to the hydrological data, the project site along Yangtze River tide as follows: Table 1 The Yangtse River tide table Historical highest tide level 6.03[m] 0.1% design high water level 6.62[m] History lowest tide level -0.19[m] 1% design high water level 6.02[m] Years of average high water level 3.31[m] 97% design low water level -0.25[m] Years of average low water level 0.88[m] 99% design low water level -0.31[m] Deep well sinking construction Circulating water pump house connected caisson is divided into four sections, two sinking, about 23m sinking depth.
Table 2 Сaisson deviation form Quality common fault causes analysis Preventive measures and treatment methods Caisson tilt 1) Soil at the foot of caisson cutting edge is soft and hard uneven. 2) No even digging make the well surface difference in elevation. 3) Digging too much, caisson sink suddenly, easy to produce tilt. 4) The well abandoned soil or pile, Inoue and load points and uneven, resulting in the sidewall bias. 1) Strengthen the observation and data analysis during sinking ,discover tilt and correct timely. 2) In high blade feet side reinforcing soil, low side ,little dig or no digging, stay positive and then uniformly layered soil. 3) In lower blade feet side appropriate backfill sand, delaying the sinkingSpeed.
Caisson sinking too fast 1)In soft soil layer,soil compressive strength is small, make sinking, faster than the excavation speed. 2)Caisson external soil liquefaction. 1) Adjustment of excavation, no dig or partly excavation at the edge of the foot. 2) Filling the rough material between the open caisson wall and soil wall, or rammeding the earth of well Cylinder, increasing friction drag; as the external well, Soil liquefaction virtual pit, can fill gravel processing. 3) Reduction of each section of cylinder body height, weight loss of open caisson.
The hydrological condition As pore water,the project site of shallow groundwater, supplied by the atmospheric precipitation and surface water, it has certain hydraulic connection with the Yangtze river water level, during exploratory period underground water level buried depth is commonly 0.15 ~ 1.20 m, In case of rain or rainstorm, the underground water level may rise to the ground.According to the hydrological data, the project site along Yangtze River tide as follows: Table 1 The Yangtse River tide table Historical highest tide level 6.03[m] 0.1% design high water level 6.62[m] History lowest tide level -0.19[m] 1% design high water level 6.02[m] Years of average high water level 3.31[m] 97% design low water level -0.25[m] Years of average low water level 0.88[m] 99% design low water level -0.31[m] Deep well sinking construction Circulating water pump house connected caisson is divided into four sections, two sinking, about 23m sinking depth.
Table 2 Сaisson deviation form Quality common fault causes analysis Preventive measures and treatment methods Caisson tilt 1) Soil at the foot of caisson cutting edge is soft and hard uneven. 2) No even digging make the well surface difference in elevation. 3) Digging too much, caisson sink suddenly, easy to produce tilt. 4) The well abandoned soil or pile, Inoue and load points and uneven, resulting in the sidewall bias. 1) Strengthen the observation and data analysis during sinking ,discover tilt and correct timely. 2) In high blade feet side reinforcing soil, low side ,little dig or no digging, stay positive and then uniformly layered soil. 3) In lower blade feet side appropriate backfill sand, delaying the sinkingSpeed.
Caisson sinking too fast 1)In soft soil layer,soil compressive strength is small, make sinking, faster than the excavation speed. 2)Caisson external soil liquefaction. 1) Adjustment of excavation, no dig or partly excavation at the edge of the foot. 2) Filling the rough material between the open caisson wall and soil wall, or rammeding the earth of well Cylinder, increasing friction drag; as the external well, Soil liquefaction virtual pit, can fill gravel processing. 3) Reduction of each section of cylinder body height, weight loss of open caisson.
Online since: July 2012
Authors: Hong Xiang Shao, Xiao Ming Duan
Experiments show that the method compared to the traditional method using only the detection results of the brightness component improved substantial, reduced empty of the detected vehicle a large extent and increased traffic information data accuracy depending on the detection result.
It refers to data from multiple sensors for multi-level, multi-faceted, multi-level processing and integration, and obtains more reliable, richer, more accurate and meaningful information.
Taking into account the effect of noise filtering and reduction of the effective loss of signal, the filter templates select 3×3 template.
The test results of the yellow and blue cars are shown in Figure 2, Figure 3 below: (a) The current frame of Yellow car (b)Y-component DY (c) fusion Figure 2 The test results of the yellow cars (a) The current frame of blue car (b) Y-component DY (c) fusion Figure 3 The test results of the blue cars It can be seen from the figure, Y-component of the test results has more space empty, the edge is not clear, the use of three components of the results of testing data fusion target enrichment, hollow substantially reduced, full body, test results have increased significantly.
It refers to data from multiple sensors for multi-level, multi-faceted, multi-level processing and integration, and obtains more reliable, richer, more accurate and meaningful information.
Taking into account the effect of noise filtering and reduction of the effective loss of signal, the filter templates select 3×3 template.
The test results of the yellow and blue cars are shown in Figure 2, Figure 3 below: (a) The current frame of Yellow car (b)Y-component DY (c) fusion Figure 2 The test results of the yellow cars (a) The current frame of blue car (b) Y-component DY (c) fusion Figure 3 The test results of the blue cars It can be seen from the figure, Y-component of the test results has more space empty, the edge is not clear, the use of three components of the results of testing data fusion target enrichment, hollow substantially reduced, full body, test results have increased significantly.
Online since: February 2015
Authors: Anna Yu. Godymchuk, Arup Ratan Mandal, Denis V. Kuznetsov, Puspendu Barik
DLS data showed QDs and core/shell to be stable.
A more common method is to passivize QDs with layer of another wider band-gap semiconducting species, forming a core–shell structure and this passivizing shell provides several advantages including: (i) enhancement of QD luminescence, (ii) reduction of cytotoxicity by preventing the leaching of core and hence make them suitable for biological applications [4].
The TEM data shows the particle size lies in the range of 4-8 nm.
Börnstein, Numerical Data and Functional Relationships in Science and Technology.
A more common method is to passivize QDs with layer of another wider band-gap semiconducting species, forming a core–shell structure and this passivizing shell provides several advantages including: (i) enhancement of QD luminescence, (ii) reduction of cytotoxicity by preventing the leaching of core and hence make them suitable for biological applications [4].
The TEM data shows the particle size lies in the range of 4-8 nm.
Börnstein, Numerical Data and Functional Relationships in Science and Technology.