scholarly journals Assessment of manufacturing process efficiency in the dispersion of carbon fibers in smart concrete by measuring AC impedance

2021 ◽  
pp. 104394
Author(s):  
Hamza Allam ◽  
François Duplan ◽  
Sofiane Amziane ◽  
Yves Burtschell
Keyword(s):  
Carbon Fibers ◽  
Manufacturing Process ◽  
Ac Impedance ◽  
Process Efficiency ◽  
Smart Concrete

scholarly journals Manufacturing process efficiency analysis of fried sausages with original additives

2021 ◽  
Vol 677 (3) ◽  
pp. 032007
Author(s):  
A I Sukhareva ◽  
I F Gorlov ◽  
M I Slozhenkina ◽  
S E Bozhkova ◽  
A S Miroshnik
Keyword(s):  
Manufacturing Process ◽  
Efficiency Analysis ◽  
Process Efficiency

Carbon Fiber Reinforced Concrete as an Intrinsically Smart Concrete for Damage Assessment During Dynamic Loading

1994 ◽  
Vol 360 ◽  
Author(s):  
Pu-Woei Chen ◽  
D.D.L. Chung
Keyword(s):  
Carbon Fibers ◽  
Inelastic Deformation ◽  
Fiber Reinforced Concrete ◽  
Short Fibers ◽  
Conduction Path ◽  
Electrically Conducting ◽  
Pull Out ◽  
Deformation And Fracture ◽  
Short Carbon ◽  
Smart Concrete

AbstractConcrete containing short carbon fibers (0.2-0.5 vol.%) was found to be an intrinsically smart concrete that can sense elastic and inelastic deformation, and fracture. The signal provided is the change in electrical resistance, which is reversible for elastic deformation and irreversible for inelastic deformation and fracture. The presence of electrically conducting short fibers is necessary for the concrete to sense elastic or inelastic deformation, but the sensing of fracture does not require fibers. The fibers serve to bridge the cracks and provide a conduction path. The resistance increase is due to conducting fiber pull-out in the elastic regime, conducting fiber breakage in the inelastic regime, and crack propagation at fracture.

scholarly journals Analyzing the Effects of Tactical Dependence for Business Process Reengineering and Optimization

Designs ◽  
2020 ◽  
Vol 4 (3) ◽  
pp. 23
Author(s):  
Md Ashikul Alam Khan ◽  
Javaid Butt ◽  
Habtom Mebrahtu ◽  
Hassan Shirvani
Keyword(s):  
Failure Rate ◽  
Business Process ◽  
Manufacturing Process ◽  
Business Process Reengineering ◽  
Process Efficiency ◽  
Process Reengineering ◽  
Implementation Phase ◽  
Modern Business ◽  
Production Output ◽  
Fabric Production

Implementing business and manufacturing process reengineering is challenging and poses major issues. The dependence issues between process functions during the implementation phase are the main reason for the high failure rate of process reengineering. The incompetence in identifying the dependence makes existing business process reengineering approaches static for modern business and manufacturing process structures. This paper has implemented a new process reengineering approach called the Khan–Hassan–Butt (KHB) methodology that incorporates the process interdependence algorithm to identify the dependence issues. The KHB method is a hybrid process reengineering approach to identify dependence issues before implementing changes; thus significantly reducing the failure rate of implementing business process reengineering. The KHB method has been implemented in a Bangladesh fabric manufacturing facility. The mapping and verification of the process have been completed using the WITNESS Horizon 22.5 simulation package. The case study has investigated the fabric production process and identified the dependence issues between each function and suggested changes to optimize the process. The outcome has shown significant improvement in production output and process efficiency.

Root cause and vibration analysis to increase veneer manufacturing process efficiency: a case study on an industrial peeling lathe

2021 ◽  
Author(s):  
Víctor Tuninetti ◽  
Ricardo Alzugaray ◽  
Jorge González ◽  
Marian Valenzuela ◽  
Andrés Jaramillo ◽  
...  
Keyword(s):  
Manufacturing Process ◽  
Vibration Analysis ◽  
Process Efficiency ◽  
Root Cause

scholarly journals Opportunities and Challenges for Implementing Automation among Selected SMEs of Food Manufacturing Industry

2019 ◽  
Vol 8 (12S2) ◽  
pp. 724-738
Keyword(s):  
Manufacturing Process ◽  
Food Production ◽  
Manufacturing Industry ◽  
Process Efficiency ◽  
Structured Interviews ◽  
Food Manufacturing ◽  
Automation Equipment ◽  
Small Medium Enterprises ◽  
Medium Enterprises ◽  
Food Manufacturing Industry

The key objective of automation is to minimize human intervention in the workplace. Automation improve not only production productivity but also strengthen company competitiveness. This research presents an empirical study that uses qualitative research methods for investigating the automation level among the Small Medium Enterprises (SMEs) in the food manufacturing industry. This research investigates the opportunities of applying automation and identifying the challenges confronted the SMEs in realizing automation in the food manufacturing process. Semi-structured interviews were conducted to examine the level of opportunities and challenges of implementing automation among selected food manufacturing SMEs. The findings show that automation enhances productivity, improve product quality and increase manufacturing process efficiency. However, this research also reveals that costing, training and lack of flexibility were the impeding factors for the studied SMEs to implement a fully automated process in food production. Despite the constraints, the companies strive to automate parts of their food production processes by using second-hand automation machines instead of investing in brand new automation equipment, hiring expert technicians and implementing the lean principle. This research presents several innovative recommendations for food manufacturing SMEs to automate their production process in order to increase competitiveness in the industry.

scholarly journals Effects of full-size panel width on cutting yield of wood-based composites as upholstery furniture frame stocks

BioResources ◽  
2019 ◽  
Vol 14 (2) ◽  
pp. 4181-4193
Author(s):  
Arif Caglar Konukcu ◽  
Jilei Zhang
Keyword(s):  
Manufacturing Process ◽  
Simulation Software ◽  
Numerical Control ◽  
Process Efficiency ◽  
Composite Panel ◽  
Composite Panels ◽  
Bottom Line ◽  
Full Size ◽  
Panel Products ◽  
Wood Based Composite

In the competitive market, many furniture manufacturers are improving their process efficiency, eliminating unnecessary costs, and improving quality by using wood-based composite panels in frames. Currently, upholstery furniture frames are made by using over 70% wood-based composite panels, which causes material utilization to be the most important area of improvement. Many furniture manufacturers have realized that increased design and production efficiencies using wood-based panel products as their frame stocks combined with computer numerical control (CNC) technology is beneficial for the manufacturing process. However, manufacturers are continuously looking for alternatives to improve the bottom line of the manufacturing process, which includes optimization of the assumed panel width to maximize the cutting yield. In this case study, the effects of increasing the width of full-size wood-based composite panel products (1219-mm-wide × 2438-mm-long) on the cutting yield of parts for two upholstered frame models were investigated using computer simulation software with an optimization capacity. The results of the simulation indicated that increasing the width of the full-size wood-based composite panel products to 1371 mm and 1524 mm could yield better material cutting yields compared with the 1219-mm-wide panel products.

EXELFS Studies of Carbon Fibers

1990 ◽  
Vol 48 (2) ◽  
pp. 72-73
Author(s):  
V. Serin ◽  
K. Hssein ◽  
G. Zanchi ◽  
J. Sévely
Keyword(s):  
Carbon Fibers ◽  
Energy Analysis ◽  
Electron Excitation ◽  
Complex Structures ◽  
High Modulus ◽  
Promising Technique ◽  
X Ray ◽  
Fine Structures ◽  
X Ray Absorption

The present developments of electron energy analysis in the microscopes by E.E.L.S. allow an accurate recording of the spectra and of their different complex structures associated with the inner shell electron excitation by the incident electrons (1). Among these structures, the Extended Energy Loss Fine Structures (EXELFS) are of particular interest. They are equivalent to the well known EXAFS oscillations in X-ray absorption spectroscopy. Due to the EELS characteristic, the Fourier analysis of EXELFS oscillations appears as a promising technique for the characterization of composite materials, the major constituents of which are low Z elements. Using EXELFS, we have developed a microstructural study of carbon fibers. This analysis concerns the carbon K edge, which appears in the spectra at 285 eV. The purpose of the paper is to compare the local short range order, determined by this way in the case of Courtauld HTS and P100 ex-polyacrylonitrile carbon fibers, which are high tensile strength (HTS) and high modulus (HM) fibers respectively.

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