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Online since: July 2016
Authors: Sansak Parklumjiek, Prin Boonkanit
Studying the data from January until March 2014, the on time delivery is at 29.87%, 37.06%, 48.61% respectively by 38.51% on average.
Value Engineering and the Resource Conservation, resources recycling of used recycled pursuant to Main 3Rs are reduction, reuse and recycling are applied with the analysis of profitability, green supply chain management by calculating the Greenhouse gas emissions (GHG) and economic analysis as refered to Dumrongkiat et al [5].
Integrated with reference model for Supply Chain Operations Reference (SCOR model) is shown in Fig. 1 including 1) Plan: Use backward scheduling method refers shortage list plan [8], 2) Source: Follow order by using MRP data from customer, 3) Make: Production used Lean technique applies JIT concept, 4) Delivery: Follow customer request to use JIT concept, 5) Return: Review material packing for reuse process.
It is helpful to reduce the frequency of transportation by keeping record and returning packing materials for analyzing GHG emission of which GHG emission factor (EF) multiplied with activity data as formula equation 1 which unit was carbon dioxide equipvalent (Co2e).
GHG emission = EF * Activity data (1) Fig. 1 Integrated with VSM ,GSCM and SCOR model Result of a case study a) Supply Chain Improvement of planning caused the on time delivery of finished goods as JIT concept.
Value Engineering and the Resource Conservation, resources recycling of used recycled pursuant to Main 3Rs are reduction, reuse and recycling are applied with the analysis of profitability, green supply chain management by calculating the Greenhouse gas emissions (GHG) and economic analysis as refered to Dumrongkiat et al [5].
Integrated with reference model for Supply Chain Operations Reference (SCOR model) is shown in Fig. 1 including 1) Plan: Use backward scheduling method refers shortage list plan [8], 2) Source: Follow order by using MRP data from customer, 3) Make: Production used Lean technique applies JIT concept, 4) Delivery: Follow customer request to use JIT concept, 5) Return: Review material packing for reuse process.
It is helpful to reduce the frequency of transportation by keeping record and returning packing materials for analyzing GHG emission of which GHG emission factor (EF) multiplied with activity data as formula equation 1 which unit was carbon dioxide equipvalent (Co2e).
GHG emission = EF * Activity data (1) Fig. 1 Integrated with VSM ,GSCM and SCOR model Result of a case study a) Supply Chain Improvement of planning caused the on time delivery of finished goods as JIT concept.
Online since: June 2025
Authors: Mirzaiee Ebrahim, Alkholi Sahab, Daróczi Miklós
Key Performance Indicators (KPI)
The Line has a lot of waste and stoppages which must be identified and observed to find suitable solutions, so the plan concerned creating an excel sheet to monitor the line by collecting the data of the processes’ situation, defining the waste and line stoppages, measuring them in addition to measuring the machine utilization, and the production performance and efficiency, then taking reduction actions of waste.
Fig. 2 expresses the required KPIs (output) using the data from the previous inputs (Fig. 2) for the 2nd of October 2023.
Input Data supervisors of Pareto Chart for the 2nd of October 2023 (Source: Self-made based on company documents) Fig. 2.
The data analysis includes measurements conducted for both daily and cumulative values.
Depending on this data, the line produces 13 parts per hour and the bottle neck is operator 3.
Fig. 2 expresses the required KPIs (output) using the data from the previous inputs (Fig. 2) for the 2nd of October 2023.
Input Data supervisors of Pareto Chart for the 2nd of October 2023 (Source: Self-made based on company documents) Fig. 2.
The data analysis includes measurements conducted for both daily and cumulative values.
Depending on this data, the line produces 13 parts per hour and the bottle neck is operator 3.
Online since: February 2017
Authors: Hong Guang Wang, Yong Jiang, Xiang Yue
Finally, three levels reduction gear was chosen to be the transmission system of the gripper driven system, the primary reduction is the Synchronous belt reductor, the second reduction is the gear reductor, and the third reduction is the rope redactor [9, 10].
The reduction ratio of rope gearing is the ratio of the two wheel diameters, so improving the ratio of the two wheel diameters can amplified transfer torque.
The data and the image are transmitted between the robot and the ground base station by a couple of wireless data modems, the tasks of the ground base station are the remote control and the state monitoring for the inspection robot, and the images are transmitted from the robot to the ground base station by a set of wireless image transmission device to display and store.
The reduction ratio of rope gearing is the ratio of the two wheel diameters, so improving the ratio of the two wheel diameters can amplified transfer torque.
The data and the image are transmitted between the robot and the ground base station by a couple of wireless data modems, the tasks of the ground base station are the remote control and the state monitoring for the inspection robot, and the images are transmitted from the robot to the ground base station by a set of wireless image transmission device to display and store.
Online since: August 2020
Authors: Jaroslav Halvonik, Aleksandar Vidaković
Standards, which assess shear resistance of bridge deck slabs subjected to concentrated loads, were derived from a database containing data from experiments carried out on simply supported beams or slab strips where the ratio of width to effective depth is less than 4 and shear stresses were constant along full width of the cross-section.
This reduction can be applied for checking VRd,c from expression (6.2.a) [relation (1) according to this paper].
Since no specimen was tested with a shear span av < 2d, the contribution of the reduction factor β was taken into account by unity.
- The quality of the model was also affected by the reduction factor β = av/kd which takes into account the arching effect.
[11] Zsutty, T., Beam shear strength prediction by analysis of existing data.
This reduction can be applied for checking VRd,c from expression (6.2.a) [relation (1) according to this paper].
Since no specimen was tested with a shear span av < 2d, the contribution of the reduction factor β was taken into account by unity.
- The quality of the model was also affected by the reduction factor β = av/kd which takes into account the arching effect.
[11] Zsutty, T., Beam shear strength prediction by analysis of existing data.
Online since: September 2004
Authors: R.H. Scott, A.W. Beeby
Some tension specimens contained strain gauged rebars to obtain very detailed data
concerning reinforcement strain distributions.
How rapidly this reduction occurs has not been studied.
A collaboration between Leeds and Durham Universities seemed a good way of generating the best possible range of experimental data.
The very fine wires from the gauges (three per gauge, each 0.2mm diameter) were connected to wiring harnesses which led to the data logging instrumentation.
The detailed nature of the Durham data, indicated in Fig. 3, showed how strains peaked at the crack positions and then declined between cracks due to the tension stiffening effects.
How rapidly this reduction occurs has not been studied.
A collaboration between Leeds and Durham Universities seemed a good way of generating the best possible range of experimental data.
The very fine wires from the gauges (three per gauge, each 0.2mm diameter) were connected to wiring harnesses which led to the data logging instrumentation.
The detailed nature of the Durham data, indicated in Fig. 3, showed how strains peaked at the crack positions and then declined between cracks due to the tension stiffening effects.
Online since: October 2004
Authors: David J. Prior, Michel Bestmann, Angela Halfpenny, Elisabetta Mariani, John Wheeler, Jan Tullis, Sandra Piazolo
Misorientation analysis, using EBSD data sets, has enabled us to constrain better
recrystallization mechanisms in rocks and minerals.
Such data enable us to quantify the conditions in the upper part of the Earth. 2.
Such data are essential to dynamic models of the Earth.
Dispersion of EBSD data, by rotation around rational crystallographic directions, reflects deformation by dislocation creep and recovery.
EBSD data from a quartz mylonite from the Stack of Glencoul.
Such data enable us to quantify the conditions in the upper part of the Earth. 2.
Such data are essential to dynamic models of the Earth.
Dispersion of EBSD data, by rotation around rational crystallographic directions, reflects deformation by dislocation creep and recovery.
EBSD data from a quartz mylonite from the Stack of Glencoul.
Online since: May 2011
Authors: Yu Shen, Hai Dong Zhang, Xu Xu Zheng, Xian Ming Zhang, Jin Song Guo, You Peng Chen
Very high gravity ethanol fermentation technology exhibited promising industrial application for advantages including productivity improvement, polluted water output reduction and energy consumption saving.
Datas analysis indicated that the osmotic pressure was controlled strictly exhibited by high growth rate of yeast and high rate of ethanol formation comparing with other dosages, and 119.78 g/kg (15.07 %, v/v) ethanol equivalent to 90.16 % of theoretical yield was achieved in 64 hours.
Therefore, very high gravity (VHG) ethanol fermentation technology exhibited promising industrial applications for advantages including productivity improvement, polluted water output reduction and energy consumption saving, particularly for the downstream processes like distillation because of high ethanol concentration in the mash to be distilled and the waste distillage treatment by the energy-intensive multistage evaporation process as less waste distillage to be treated [5, 6, 7, 8].
Table 1 Fermentation parameters of five glucoamylase dosages adding Glucoamylase dosage [g/kg dry matter weight] 0.2 0.4 0.6 0.8 1.0 Residue available glucose concentration [g/kg] 3.2 2.1 3.7 4.6 43.1 Final cells count [108/g] 2.35 2.43 2.17 2.11 1.78 Final ethanol concentration[g/kg] 72.44 95.43 113.47 119.78 101.39 Yield [theoretical production %] 55.59 73.24 87.08 90.16 77.81 Productivity [g/kg.h] 0.91 1.19 1.42 1.48 1.27 Conclusion Fermentations parameter datas indicated 0.8 g/kg dry matter was the optimum glucoamylase adding for SSF using very high gravity liquefied sweet potato mash, under such condition, the osmotic pressure was controlled strictly under the high inhibition limitation level and saccharifying rate was always kept high enough for the substrate providing, and 119.78 g/kg (15.07 %, v/v) ethanol equivalent to 90.16 % of theoretical yield was achieved in 64 hours, average productivity calculated by final ethanol concentration was 1.48 g/kg.h.
Datas analysis indicated that the osmotic pressure was controlled strictly exhibited by high growth rate of yeast and high rate of ethanol formation comparing with other dosages, and 119.78 g/kg (15.07 %, v/v) ethanol equivalent to 90.16 % of theoretical yield was achieved in 64 hours.
Therefore, very high gravity (VHG) ethanol fermentation technology exhibited promising industrial applications for advantages including productivity improvement, polluted water output reduction and energy consumption saving, particularly for the downstream processes like distillation because of high ethanol concentration in the mash to be distilled and the waste distillage treatment by the energy-intensive multistage evaporation process as less waste distillage to be treated [5, 6, 7, 8].
Table 1 Fermentation parameters of five glucoamylase dosages adding Glucoamylase dosage [g/kg dry matter weight] 0.2 0.4 0.6 0.8 1.0 Residue available glucose concentration [g/kg] 3.2 2.1 3.7 4.6 43.1 Final cells count [108/g] 2.35 2.43 2.17 2.11 1.78 Final ethanol concentration[g/kg] 72.44 95.43 113.47 119.78 101.39 Yield [theoretical production %] 55.59 73.24 87.08 90.16 77.81 Productivity [g/kg.h] 0.91 1.19 1.42 1.48 1.27 Conclusion Fermentations parameter datas indicated 0.8 g/kg dry matter was the optimum glucoamylase adding for SSF using very high gravity liquefied sweet potato mash, under such condition, the osmotic pressure was controlled strictly under the high inhibition limitation level and saccharifying rate was always kept high enough for the substrate providing, and 119.78 g/kg (15.07 %, v/v) ethanol equivalent to 90.16 % of theoretical yield was achieved in 64 hours, average productivity calculated by final ethanol concentration was 1.48 g/kg.h.
Online since: August 2007
Authors: Leonardo Pagnotta, Giambattista Stigliano, Marco Alfano
Identifying elastic properties of isotropic materials
by finite element analyses and vibration data
Marco Alfanoa, Leonardo Pagnottab and Giambattista Stiglianoc
1
Department of Mechanical Engineering, University of Calabria, 87036 Rende (CS) - Italy
a
alfano@unical.it, bpagnotta@unical.it, cstigliano@unical.it
Keywords: elastic constants; isotropic materials; FEM; NDT.
In the present paper, an optimized search procedure is proposed which allows the material constants of isotropic plates to be non-destructively identified from vibration testing data and using finite element analyses.
The procedure has been applied using frequency data retrieved from the literature and a comparison with the results obtained by means of other test methodologies has shown that the proposed approach is effective.
The process starts assuming the guess value assigned by the user (Estart, νstart), then in the pre-processing stage the input file of the FEA code (MSC/NASTRAN [18]) is adjusted modifying the MAT1 bulk data entry which defines the isotropic stress-strain relationship.
Future work will be focused on the reduction of the solution time.
In the present paper, an optimized search procedure is proposed which allows the material constants of isotropic plates to be non-destructively identified from vibration testing data and using finite element analyses.
The procedure has been applied using frequency data retrieved from the literature and a comparison with the results obtained by means of other test methodologies has shown that the proposed approach is effective.
The process starts assuming the guess value assigned by the user (Estart, νstart), then in the pre-processing stage the input file of the FEA code (MSC/NASTRAN [18]) is adjusted modifying the MAT1 bulk data entry which defines the isotropic stress-strain relationship.
Future work will be focused on the reduction of the solution time.
Online since: March 2013
Authors: Yu Li
Technical analysis: In order to keep the color reduction rate, use and actual collection color data and finishing color stereo comprehensive analysis, using a digital color measurement instrument, PANTONG color traditional color measurement and modern color measurement two kinds of forms to along the river development zone, and Yuanbao zone for color measurement, prospecting scene, investigation.
Strict requirements color measurement time, place, and timing, to ensure the reliability of the chromatographic data extraction.
Along the river development zone investigation analysis and investigation to the primary chromatography extraction The study goal is building status of the main color, auxiliary color, environmental color RGB values, and color reduction after the RGB value.
Hue relatively simple, easy to harmonic. 4 Conclusions Research for urban management department to make and regulate the use of local chromatography provides reference way and the method, the use of color measurement instrument auxiliary pantone expansion digital color database experimental research, compared with the traditional way method can more accurate in reduction field exploration, collecting relevant color data, for the establishment of the database to provide technical support.
Strict requirements color measurement time, place, and timing, to ensure the reliability of the chromatographic data extraction.
Along the river development zone investigation analysis and investigation to the primary chromatography extraction The study goal is building status of the main color, auxiliary color, environmental color RGB values, and color reduction after the RGB value.
Hue relatively simple, easy to harmonic. 4 Conclusions Research for urban management department to make and regulate the use of local chromatography provides reference way and the method, the use of color measurement instrument auxiliary pantone expansion digital color database experimental research, compared with the traditional way method can more accurate in reduction field exploration, collecting relevant color data, for the establishment of the database to provide technical support.
Online since: October 2013
Authors: Meng Xiong Zeng, Wen Ouyang, Zhu Qing Zhen
Gray model GM (1, 1) is based on gray prediction, with some known data; it could quantify the abstract concept of system information, and then set them in a model, at last forecast part of the unknown data through the model optimization.
GM (1, 1) model is to process random variables as gray quantity, look for the law between data, make up for the lack of data processing methods.
Modeling process of gray prediction model is to accumulate the irregular raw data, to get the generated sequence which has strong regularity before modeling, then obtain reduction model through regressive model data, at last, the reduction model is a predictive model.
Then, we got .As, the series of was used as the data of GM (1, 1) for forecasting.
Conclusions According to the historical demand data, the paper established a reasonable gray prediction model through the preprocessing for raw data, and got predicted values which had high precision.
GM (1, 1) model is to process random variables as gray quantity, look for the law between data, make up for the lack of data processing methods.
Modeling process of gray prediction model is to accumulate the irregular raw data, to get the generated sequence which has strong regularity before modeling, then obtain reduction model through regressive model data, at last, the reduction model is a predictive model.
Then, we got .As, the series of was used as the data of GM (1, 1) for forecasting.
Conclusions According to the historical demand data, the paper established a reasonable gray prediction model through the preprocessing for raw data, and got predicted values which had high precision.