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Journal articles on the topic 'Machine processing'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

S, Jones Arthi, Kousalya R, and Kumari M. "Manifest Electronic Voting Machine Using Image Processing." International Journal of Trend in Scientific Research and Development Volume-2, Issue-3 (April 30, 2018): 1893–98. http://dx.doi.org/10.31142/ijtsrd11509.

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2

MURAMATSU, Hisayoshi, Takahiro ISHIKAWA, Takuya FUKUDA, Toshihiro FUJINOKI, Hideaki FUKUDA, and Gaku ASANUMA. "Electricity, Machines, Control, and Processing in Machine Tools." Journal of the Institute of Electrical Engineers of Japan 137, no. 7 (2017): 440–43. http://dx.doi.org/10.1541/ieejjournal.137.440.

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3

Righter, Rhonda. "Stochastic scheduling for a two-machine open shop." Journal of Applied Probability 34, no. 3 (September 1997): 733–44. http://dx.doi.org/10.2307/3215098.

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We study the problem of preemptive scheduling of jobs in a two-machine open shop. Jobs require processing on both machines, but the order does not matter. We define the D-LERPT (double longest expected remaining processing time) policy as the policy that first processes jobs that have not yet been processed by either machine (double jobs), in decreasing order of expected remaining processing times, and then processes jobs that require processing on only one machine in any order. We show that D-LERPT stochastically minimizes the makespan when preemption is not permitted and jobs (but not machines) are stochastically identical, and that D-LERPT minimizes the makespan in the increasing convex sense when preemption is permitted and the machines are stochastically identical and processing times are exponential or geometric with a job dependent rate.

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Righter, Rhonda. "Stochastic scheduling for a two-machine open shop." Journal of Applied Probability 34, no. 03 (September 1997): 733–44. http://dx.doi.org/10.1017/s002190020010138x.

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We study the problem of preemptive scheduling of jobs in a two-machine open shop. Jobs require processing on both machines, but the order does not matter. We define the D-LERPT (double longest expected remaining processing time) policy as the policy that first processes jobs that have not yet been processed by either machine (double jobs), in decreasing order of expected remaining processing times, and then processes jobs that require processing on only one machine in any order. We show that D-LERPT stochastically minimizes the makespan when preemption is not permitted and jobs (but not machines) are stochastically identical, and that D-LERPT minimizes the makespan in the increasing convex sense when preemption is permitted and the machines are stochastically identical and processing times are exponential or geometric with a job dependent rate.

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Zhi, Jing Zhang, Cheng Zu Ren, and Jing Chuan Dong. "Study on Post-Processing of Five-Axis Cnc Machining." Applied Mechanics and Materials 141 (November 2011): 524–28. http://dx.doi.org/10.4028/www.scientific.net/amm.141.524.

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According to the feature of five-axis CNC machine tools’structure, do researches on post-process technique. By means of analysis of the kinetic model of five-axis CNC machine tools, Position and orientation of the tool in the workpiece coordinate system transforms to that of the machine coordinate system. Besides, Because of the rotation，Five-axises maching will produce the non-linear error．This article provides an easy algorithm to find the maximum non-linear error. Finally, an impeller, for example, simulates in the computer and machine by a 5-axis machine tool.

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6

Sungheetha, Akey. "3D Image Processing using Machine Learning based Input Processing for Man-Machine Interaction." Journal of Innovative Image Processing 3, no. 1 (February 22, 2021): 1–6. http://dx.doi.org/10.36548/jiip.2021.1.001.

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In various real time applications, several assisted services are provided by the human-robot interaction (HRI). The concept of convergence of a three-dimensional (3D) image into a plane-based projection is used for object identification via digital visualization in robotic systems. Recognition errors occur as the projections in various planes are misidentified during the convergence process. These misidentifications in recognition of objects can be reduced by input processing scheme dependent on the projection technique. The conjoining indices are identified by projecting the input image in all possible dimensions and visualizing it. Machine learning algorithm is used for improving the processing speed and accuracy of recognition. Labeled analysis is used for segregation of the intersection without conjoined indices. Errors are prevented by identifying the non-correlating indices in the projections of possible dimension. The inputs are correlated with related inputs that are stored with labels thereby preventing matching of the indices and deviations in the planes. Error, complexity, time and recognition ratio metrics are verified for the proposed model.

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Залюбовський, М. Г., and І. В. Панасюк. "ЕКСПЕРИМЕНТАЛЬНЕ ДОСЛІДЖЕННЯ ВПЛИВУ ГЕОМЕТРІЇ МЕТАЛЕВИХ ВІДЛИВОК ДЕТАЛЕЙ ЗАМКА «БЛИСКАВКА» НА ОСОБЛИВОСТІ ЇХ ОБРОБКИ В ГАЛТУВАЛЬНІЙ МАШИНІ." Bulletin of the Kyiv National University of Technologies and Design. Technical Science Series 144, no. 2 (October 14, 2020): 24–32. http://dx.doi.org/10.30857/1813-6796.2020.2.2.

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Experimentally investigate the intensity and specificity of the processing of different types of metal castings of the zipper in a tensile machine with complex spatial movement of the working capacity, to obtain the appropriate calculation dependencies to determine the processing time. An experimental study of the separation from the casters of three types of metal castings of the zipper (casting with two, with eight fixed details-cases and outflow with sixteen fixed details by clamps) in a tensile machine with a complex spatial movement of the working capacity by observing the change in the number of machined parts during the process. Further mathematical processing of the obtained results is carried out. The types of castings for which the maximum and minimum technological time are spent in the toughening machine with complex spatial movement of the working capacity are determined. It is established that for processing castings with fixed parts-locks it takes twice more technological time, which is spent to clean the separated parts from the remnants of the wrap and burrs. Compared with conventional rotating shredding machines, using machines with complex spatial movement of the working capacity, you can increase the productivity of this technological operation by almost ten times. The dependences between different types of metallic castings of the zipper and the intensity of separation of parts from them during processing in a caulking machine with a complex spatial movement of the working capacity with providing a waterfall mode of movement and 50% filling the capacity. Appropriate design dependencies were obtained to determine the processing time. Guidelines on the implementation of rational technological parameters in the processing of various types of metal castings of the zipper in a tensile machine with a complex spatial movement of the working capacity. These guidelines can be used at the design stage of technological processes and equipment in the relevant machine-building and light industry enterprises specializing in the manufacture of hardware.

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8

TOYODA, Takatoshi. "Trends in Drawing Processing Machine." Journal of the Japan Society for Technology of Plasticity 52, no. 602 (2011): 336–40. http://dx.doi.org/10.9773/sosei.52.336.

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9

Rautiola, Kyösti, Tuomo Näyhä, and Kari Kaarela. "Parallel processing in machine automation." Microprocessing and Microprogramming 27, no. 1-5 (August 1989): 723–30. http://dx.doi.org/10.1016/0165-6074(89)90139-7.

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10

Jiang, Di. "Remodeling an RNA processing machine." Science 371, no. 6525 (January 7, 2021): 137.10–139. http://dx.doi.org/10.1126/science.371.6525.137-j.

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11

Monkman, Gareth. "Workpiece retention during machine processing." Assembly Automation 21, no. 1 (March 2001): 61–67. http://dx.doi.org/10.1108/01445150110381754.

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12

Van Hulle, Marc M., and Jan Larsen. "Machine Learning for Signal Processing." Neurocomputing 72, no. 1-3 (December 2008): 1–2. http://dx.doi.org/10.1016/j.neucom.2008.08.004.

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13

Schweikardt, Nicole. "Machine models for query processing." ACM SIGMOD Record 38, no. 2 (October 26, 2009): 18–28. http://dx.doi.org/10.1145/1815918.1815922.

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14

M, Vijayalakshmi M. "Melanoma Skin Cancer Detection using Image Processing and Machine Learning." International Journal of Trend in Scientific Research and Development Volume-3, Issue-4 (June 30, 2019): 780–84. http://dx.doi.org/10.31142/ijtsrd23936.

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15

Mauluddin, Yusuf. "Three-stage flow-shop scheduling model with batch processing machine and discrete processing machine." MATEC Web of Conferences 197 (2018): 14002. http://dx.doi.org/10.1051/matecconf/201819714002.

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This study discusses the model development of three-stage flow-shop scheduling involving Batch Processing Machine (BPM) and Discrete Processing Machine (DPM). Each job passes several stages of the production process from the first stage in DPM-a, the second stage in BPM, to the third stage in DPM-b. Each job is sequentially processed in DPM-a and DPM-b. in BPM; every job is handled simultaneously at the same time. The maximum weight determines the capacity of BPM. This study uses mathematic modeling approach. The result model produced in this study is Mixed Integer Linear Programming (MILP) Model. Purpose function model is minimizing total completion time. Model testing is done by using numerical examples with several data scenarios. The results showed that the model produced was the optimum model and provided a unique schedule pattern. In the future research can be formulated the heuristic model.

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Vakharia, Asoo J., and Bülent Çatay. "Two machine openshop scheduling with machine-dependent processing times." Discrete Applied Mathematics 73, no. 3 (March 1997): 283–88. http://dx.doi.org/10.1016/s0166-218x(96)00108-4.

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17

Petrov, V., A. Zhdanov, and R. Mazej. "AGGREGATED COMPLEXES FOR RICE GRAIN PROCESSING." Grain Products and Mixed Fodder’s 20, no. 2 (July 15, 2020): 41–46. http://dx.doi.org/10.15673/gpmf.v20i2.1765.

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The paper considers various designs of aggregated complexes for the processing of rice grain. Their technological schemes were built and analyzed, and a breakdown into modules was performed. This allowed us to group the various designs of units and summarize their technological capabilities. The general reduced technological scheme of rice grain processing is considered. The noted variations are as far as practical applications with and without a grain cleaning module. Various schemes of hulling of grain and selection of hulled grain from unlulled are presented. The technological schemes with various hulling machines are analyzed (the Engleberg hulling machine, with rubberized rolls, centrifugal action), which have their own characteristics. The differences in the use of paddy machines and trimers for sorting grain after hulling are considered. The cylindrical trieurs used to select the rice kernel have an original technological scheme (company Yanmar). This allows you to simplify technological communications and make the unit more compact. The units use more compact paddy machines (reduced size, number of tiers, etc.), which, of course, affects their performance. The most common combined machine with a single-pass technological scheme (which was named after the first inventor and manufacturer, a hulling machine from Satake) is considered. In addition to laboratory equipment, centrifugal hulling machines are used in grain processing units, which gives additional advantages (a more compact scheme, due to the combination of several technological operations, hulling, transporting the grain stream, and air separation. For the majority of broken and unbroken grains sieve separators are used for simple circuits. Separators with vertical rotation axis, that allows to transport the rice to a predetermined height. This makes it possible to link this separator, for example with electronic scales.

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18

Darma, Darma, Reniana Reniana, and Arbianto Arif Moh. "UJI LAPANG MESIN PENGOLAHAN SAGU PRODUKSI BENGKEL PERMESINAN AGROINDUSTRI UNIVERSITAS PAPUA." Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) 9, no. 3 (September 30, 2020): 191. http://dx.doi.org/10.23960/jtep-l.v9i3.191-200.

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Papua and West Papua Province have the large potential of sago palm (Metroxylon sagu), however, until now the production and utilization is very low compared with its potential. This is because of most farmers in this area still use traditional method in processing sago. The traditional method is labour intensive and time consuming process. Sago farmers in this area still apply traditional ways to process sago starch due to the lack of processing machines. The objective of this research was to conduct field testing of sago processing machine produced by Agroindustry Machinery Workshop of Papua University. The machines that have been tested consist of cylinder type sago rasping machine and stirrer rotary blade sago starch extraction machine. The machine’s performance under field condition was evaluated by measuring parameters (a) rasping capacity, (b) extraction capacity, (c) starch percentage, (d) starch yield and (e) starch loss in waste. Results showed that all parts of the machine are functioning properly and farmers can easily operate the machine. The performances of the machines under field condition were (a) rasping capacity 1,159. 8 kg/hour, (b) extraction capacity 243.8 kg/hour, (c) starch percentage 38.26 %, (d) starch yield 93 kg/hour and (e) starch loss in waste 1.03 %. Keywords: cylinder type, field test, rasping machine, sago processing, starch percentage

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19

Chen, Kuen-Suan, Der-Fa Chen, Ming-Chieh Huang, and Tsang-Chuan Chang. "Analyzing processing quality of machine tools via processed product: Example of ball valve processing machine." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 234, no. 4 (May 14, 2020): 331–41. http://dx.doi.org/10.1177/0954408920925028.

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Machine tools are fundamental equipment in industrial production, and their processing quality exerts a direct impact on the quality of the component product that they process. Thus, machine tool manufacturers develop various machine tools depending on market needs and processing functions, and the processed component products generally possess multiple smaller-the-better, larger-the-better, and nominal-the-best quality characteristics at the same time. For this reason, this study employed the widely used process capability indices, [Formula: see text], [Formula: see text], and [Formula: see text] to develop a model that can evaluate the process quality of component products and analyze the processing quality of various machine tools. We first converted the process capability indices into functions of the accuracy and precision indices and constructed a multi-characteristic quality analysis chart that can identify the reason for poor process quality in a quality characteristic. Furthermore, considering the fact that the process capability indices can only be estimated, which may lead to misjudgment in the evaluation of process quality, we derived the [Formula: see text] upper confidence limits of indices and the coordinates formed by the corresponding accuracy and precision indices. Manufacturers can then evaluate the process quality levels of the quality characteristics based on where the coordinates falls in the multi-characteristic quality analysis chart. This can more reliably assist manufacturers in monitoring the processing quality of their machine tools and providing feedback to the machine tool manufacturers for machine improvement.

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20

CHOI, BYUNG-CHEON, and MYOUNG-JU PARK. "OUTSOURCING DECISIONS IN m-MACHINE PERMUTATION FLOW SHOP SCHEDULING PROBLEMS WITH MACHINE-DEPENDENT PROCESSING TIMES." Asia-Pacific Journal of Operational Research 31, no. 04 (August 2014): 1450028. http://dx.doi.org/10.1142/s0217595914500286.

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We consider m-machine permutation flow shop problems with an outsourcing option for a special case where each job's processing time equals the job's processing requirement plus a characteristic value of the machine. The objective is to minimize the sum of the performance measure for in-house jobs (the total completion time or the makespan) and the total outsourcing cost. We prove that two problems are polynomially solvable when the number of machines is fixed.

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Bruns, Ralf, Jürgen Dunkel, Henrik Masbruch, and Sebastian Stipkovic. "Intelligent M2M: Complex event processing for machine-to-machine communication." Expert Systems with Applications 42, no. 3 (February 2015): 1235–46. http://dx.doi.org/10.1016/j.eswa.2014.09.005.

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22

MINAGAWA, Masaru, Daisuke MITSUEDA, and Masaki TOBITA. "INFLUENCE OF CONSTRUCTION MACHINE DISTRIBUTION INCLUDING LEASED MACHINES FOR RUBBLE PROCESSING." Journal of Japan Society of Civil Engineers, Ser. F4 (Construction and Management) 71, no. 4 (2015): I_85—I_95. http://dx.doi.org/10.2208/jscejcm.71.i_85.

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23

Liao, Ching-Jong, and Li-Man Liao. "Improved MILP models for two-machine flowshop with batch processing machines." Mathematical and Computer Modelling 48, no. 7-8 (October 2008): 1254–64. http://dx.doi.org/10.1016/j.mcm.2008.01.001.

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24

Liao, Li-Man, and Ching-Jen Huang. "Tabu search heuristic for two-machine flowshop with batch processing machines." Computers & Industrial Engineering 60, no. 3 (April 2011): 426–32. http://dx.doi.org/10.1016/j.cie.2010.03.004.

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Wei, Qi, and Yong Wu. "The Optimal Algorithm of a Two-Stage Flow Shop Problem with Infinite Number of Jobs." Applied Mechanics and Materials 101-102 (September 2011): 290–93. http://dx.doi.org/10.4028/www.scientific.net/amm.101-102.290.

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In this paper, a two-machine two-stage flow shop with identical jobs is considered. Each of identical jobs has two tasks. The first task can be processed on either machine, called flexible task, while the second task must be processed on the second machine and can't be processed unless the first task has been processed. The problem is to determine the assignment of the flexible tasks to the machines for each job, with the objective of maximizing the throughput rate. This model is applied to the graphic programs processing which comprises data processing and graphics processing. We consider three cases regarding the capacity of the buffer between the machines with infinite number of jobs. We present optimal algorithm for each variant of the problem.

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YASUNAGA, SEIJI. "Development of electron beam processing machine." Journal of the Japan Society for Precision Engineering 52, no. 6 (1986): 952–56. http://dx.doi.org/10.2493/jjspe.52.952.

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27

ITOU, Kunio. "Image processing in digital copying machine." Journal of the Japan Society for Precision Engineering 54, no. 12 (1988): 2247–50. http://dx.doi.org/10.2493/jjspe.54.2247.

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28

Tayel, Samir, Abd El-Kader El-Nakib, I. Yehia,, and M. A. EL-ESAILY,. "DEVELOPMENT OF A GRANULAR PROCESSING MACHINE." Misr Journal of Agricultural Engineering 29, no. 1 (January 1, 2012): 1–22. http://dx.doi.org/10.21608/mjae.2012.102363.

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29

Vroom, David. "Innovative machine designs for radiation processing." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 265, no. 1 (December 2007): 44–50. http://dx.doi.org/10.1016/j.nimb.2007.08.023.

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30

Tao, Dacheng, Dianhui Wang, and Fionn Murtagh. "Machine learning in intelligent image processing." Signal Processing 93, no. 6 (June 2013): 1399–400. http://dx.doi.org/10.1016/j.sigpro.2013.02.004.

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31

Peltonen, Jaakko, Tapani Raiko, and Samuel Kaski. "Machine learning for signal processing 2010." Neurocomputing 80 (March 2012): 1–2. http://dx.doi.org/10.1016/j.neucom.2011.10.002.

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32

Rishita, Middi Venkata Sai, Middi Appala Raju, and Tanvir Ahmed Harris. "Machine translation using natural language processing." MATEC Web of Conferences 277 (2019): 02004. http://dx.doi.org/10.1051/matecconf/201927702004.

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Machine Translation is the translation of text or speech by a computer with no human involvement. It is a popular topic in research with different methods being created, like rule-based, statistical and examplebased machine translation. Neural networks have made a leap forward to machine translation. This paper discusses the building of a deep neural network that functions as a part of end-to-end translation pipeline. The completed pipeline would accept English text as input and return the French Translation. The project has three main parts which are preprocessing, creation of models and Running the model on English Text.

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Thornton, Chris. "Predictive processing simplified: The infotropic machine." Brain and Cognition 112 (March 2017): 13–24. http://dx.doi.org/10.1016/j.bandc.2016.03.004.

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Dijkstra, T. "Image processing, analysis and machine vision." Neurocomputing 6, no. 3 (June 1994): 378–79. http://dx.doi.org/10.1016/0925-2312(94)90073-6.

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35

Saarinen, Kari. "Image processing, analysis and machine vision." Signal Processing 35, no. 1 (January 1994): 102–4. http://dx.doi.org/10.1016/0165-1684(94)90202-x.

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36

Cao, Jiuwen, and Chuan-Yu Chang. "Machine learning in nD signal processing." Multidimensional Systems and Signal Processing 28, no. 3 (March 31, 2017): 791–93. http://dx.doi.org/10.1007/s11045-017-0489-5.

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37

Lin, Lan, and Yixun Lin. "Machine scheduling with contiguous processing constraints." Information Processing Letters 113, no. 8 (April 2013): 280–84. http://dx.doi.org/10.1016/j.ipl.2013.02.004.

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38

Morrison, Liam. "Utilizing Machine Learning for Video Processing." SMPTE Motion Imaging Journal 130, no. 8 (September 2021): 107–11. http://dx.doi.org/10.5594/jmi.2021.3101580.

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39

Sui, Xiu Lin, Zheng Wei Kong, Jia Tai Zhang, and Xiao Ping Yang. "Study of Virtual Numerical Control Milling Simulation System." Key Engineering Materials 407-408 (February 2009): 174–79. http://dx.doi.org/10.4028/www.scientific.net/kem.407-408.174.

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Virtual numerical control milling simulation system, based on UG, is studied oriented to low utilization of NC machines. A virtual machine tools library, standard fixture library and visual machine tool processing environment were established by the second development techniques of UG and VC++. Through the example of XH715 NC machine center, tool path and motion of miller were simulated separately; at last processing scheme was evaluated and optimized. The experimental results show this system possesses good utility, and the utilization of machine tools could thus be improved.

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Phan, Lam Huynh, Nam Thanh Nguyen, and Anh Pham Huy Ho. "Control method for reducing errors prosessing of the SLS machine." Science and Technology Development Journal 17, no. 1 (March 31, 2014): 36–42. http://dx.doi.org/10.32508/stdj.v17i1.1292.

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This article presents a method of the error reducing control in SLS machine. When using SLS machine, there are many factors that cause the errors such as: temperature, trajectory, velocity and laser intensity. Therefore, we need to have a precise method control in order to have an accurate processing sample. This one presents the Fuzzy Control Method to help we achieve highly accurate results when process with SLS machine. We propose control method that establishs the criteria based on many influence processing parameters previously mentioned (*) rather than merely control position, velocity, trajectory as the CNC machines. The processing by SLS machine basse on the control MIMO model. Therefore, estimating and parameterizing control parameters to reducing.

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Yang, Xiao Jun, Bing Li, and Dong Lai Zhang. "Post-Processing Development of a New PTS-X Hybrid Kinematics Machine." Key Engineering Materials 375-376 (March 2008): 719–23. http://dx.doi.org/10.4028/www.scientific.net/kem.375-376.719.

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A new 5-degrees-of-freedom hybrid kinematic machine(HKM) consisting of a 4-degrees-of-freedom PTS-based parallel kinematics platform with center constraint branch and a serial X axis is developed. The will-be-machined workpiece is mounted on the platform and the spindle movement is driven by the X axis. This new HKM is very different from a conventional serial-type machine. Therefore, a special algorithm that can transfer the cutter location data (CL-data) into machine specific NC commands is essential for the applications of the PTS-X based HKM in real machining of the workpiece with the complicated surface. The workpiece’s location approach on the platform and the orientation transformation of the moving platform relative to the machine coordination system are investigated.

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Topilnytskyy, Volodymyr, Yaroslav Kusyi, and Dariya Rebot. "RESEARCH OF VIBRATION MACHINES DYNAMICS FOR PRODUCT SURFACES PROCESSING BY MATHEMATICAL MODELING." Vibrations in engineering and technology, no. 1(96) (August 27, 2020): 35–43. http://dx.doi.org/10.37128/2306-8744-2020-1-4.

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The article describes the methodology for the study of the dynamics of vibrating machines for surface processing of products by mathematical modeling, which is presented in four main stages. The first stage: analysis of classes of vibrating machines for surface treatment of products, choice of basic for solving the technological problem, project of a unified calculation scheme of the machine. The second stage: development of a nonlinear mathematical model for describing the dynamics of the vibration machine working body and its filling, development of elements of automated calculations of the machine. The third stage: the study of the influence of the parameters of the vibrating machine, product sets and tools (with their various combinations) on the factors of the intensity of products surface processing. The fourth stage: recommendations for choosing vibrating machine parameters and machining bodies that will maximize the processing performance of products with the selected intensity criterion. A mathematical model for describing the motion of a vibrating machine for surface treatment of articles by a set of unrelated bodies of small size is created. It has two unbalance units that generate oscillations of its working body and a spring suspension-mounting of the working chamber (container). The model is parametric and nonlinear, incorporating key dynamic, kinematic and geometric parameters of the vibrating machine in symbolic format. It is constructed by: descriptions of the plane-parallel movement of the mechanical system, the rotational motion of the material point and the body; second-order Lagrange equation; asymptotic (approximate) methods of nonlinear mechanics. With the help of the model it is possible: to describe the oscillatory movement of the working chamber (container) of the vibrating machine; to study the influence of the machine parameters on the efficiency of performance of the set technological task, the conditions of occurrence of non-stationary modes of operation of the vibrating machine and the ways of their regulation.

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Wang, Chao, Yuan Yao, Qian Sheng Zhao, and Qing Xi Hu. "Research about Post Processing for Fagor CNC System Based on Visual C++." Applied Mechanics and Materials 80-81 (July 2011): 1273–77. http://dx.doi.org/10.4028/www.scientific.net/amm.80-81.1273.

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Post processing is one of the key technologies of CNC programming. Nowadays, the wide application of new type CNC machines is limited by the matching problem between the CAM systems and the developing CNC machine systems. This paper based on XDK9070 CNC engraving machine, researched the file format of cutter location files generated from Pro/Toolmaker and the CNC program format of FAGOR system, expounded the method and process for post processing, designed a special post processing procedure for FAGOR CNC system based on Visual C++, verified the correctness and practicality of the post processing procedure by a example of product processing.

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44

CHEN, KE, MIN JI, JIAOJIAO GE, and GUIYI WEI. "SCHEDULING POSITION-BASED DETERIORATING JOBS WITH MULTIPLE RATE-MODIFYING ACTIVITIES AND PAST-SEQUENCE-DEPENDENT DELIVERY TIMES." Asia-Pacific Journal of Operational Research 31, no. 03 (June 2014): 1450018. http://dx.doi.org/10.1142/s0217595914500183.

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In this paper, we consider a scheduling problem with position-based deteriorating jobs and past-sequence-dependent delivery times on a single machine or parallel machines. Each job's delivery time is dependent on its waiting time for processing. Because of the deteriorating effect, each machine will undergo multiple rate-modifying activities throughout the planning horizon to restore its processing rate. For the single-machine case, the objectives are to minimize the makespan and the total completion time. For the parallel-machine case, the objectives are to minimize the total completion time and the total machine load. We show that all these problems are solvable in polynomial time.

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Zhadanovsky, Boris. "Mechanical processing of concrete and reinforced concrete with diamond tool." MATEC Web of Conferences 193 (2018): 03013. http://dx.doi.org/10.1051/matecconf/201819303013.

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The technology and organization of construction production using high-performance machines equipped with a diamond tool for machining concrete, concrete and stone surfaces is considered. Various installations, machines and mechanisms with a diamond tool for milling, grinding, drilling and cutting surfaces are presented. The design decisions of the grinding machine MSh-300, installations for machining the surfaces of facing slabs, a high-performance drilling machine and a concrete surface milling cutter are considered. An analysis of domestic and foreign installations has been carried out, which showed that the specific consumption of diamonds in domestic installations is lower with higher productivity. Having studied the sales statistics of manufacturers of individual machines and plants, as well as the positive feedback from implementing construction organizations, it is recommended to use, for the further prospect, high-performance machines and installations with a diamond tool in connection with an increase in the volume of reconstruction of industrial and civil facilities and the construction of transport highways.

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Hutchinson, Tim. "Natural language processing and machine learning as practical toolsets for archival processing." Records Management Journal 30, no. 2 (May 16, 2020): 155–74. http://dx.doi.org/10.1108/rmj-09-2019-0055.

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Purpose This study aims to provide an overview of recent efforts relating to natural language processing (NLP) and machine learning applied to archival processing, particularly appraisal and sensitivity reviews, and propose functional requirements and workflow considerations for transitioning from experimental to operational use of these tools. Design/methodology/approach The paper has four main sections. 1) A short overview of the NLP and machine learning concepts referenced in the paper. 2) A review of the literature reporting on NLP and machine learning applied to archival processes. 3) An overview and commentary on key existing and developing tools that use NLP or machine learning techniques for archives. 4) This review and analysis will inform a discussion of functional requirements and workflow considerations for NLP and machine learning tools for archival processing. Findings Applications for processing e-mail have received the most attention so far, although most initiatives have been experimental or project based. It now seems feasible to branch out to develop more generalized tools for born-digital, unstructured records. Effective NLP and machine learning tools for archival processing should be usable, interoperable, flexible, iterative and configurable. Originality/value Most implementations of NLP for archives have been experimental or project based. The main exception that has moved into production is ePADD, which includes robust NLP features through its named entity recognition module. This paper takes a broader view, assessing the prospects and possible directions for integrating NLP tools and techniques into archival workflows.

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CAI, SHENG-YI. "SEMI-ONLINE MACHINE COVERING." Asia-Pacific Journal of Operational Research 24, no. 03 (June 2007): 373–82. http://dx.doi.org/10.1142/s0217595907001255.

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This paper investigates two different semi-online versions of the machine covering, which is the problem of assigning a set of jobs to a system of m(m ≥ 3) identical parallel machines so as to maximize the earliest machine completion time. In the first case, we assume that the largest processing times is known in advance. In the second case, we assume that the total processing times of all jobs is known in advance. For each version we propose a semi-online algorithm and investigate its competitive ratio. The competitive ratio of each algorithm is [Formula: see text], which is shown to be the best possible competitive ratio for each semi-online problem.

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Hsia, Shao-Yi, Chen-Chung Chang, and Di-Hung Huang. "Application of passive damping fixture to the improvement of CNC drilling." MATEC Web of Conferences 169 (2018): 01036. http://dx.doi.org/10.1051/matecconf/201816901036.

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High precision and high efficiency are the essential competition conditions for multi-axis machine. However, machine vibration problems are always plagued by equipment manufacturers. This study focuses on solving or eliminating the multi-angle drilling vibration of processing machines. By the design and experiment combining CNC multi-axis machine tools with vibration tables, the surface roughness in the multi-angle drilling holes is discussed for the reference of the industry or the academia. The results indicated that adding proper vibration factors could effectively improve the bore surface roughness and smoothness. Roughness Ra with the vibration interval time 0.5 sec, could improve the surface roughness 48.95% of the processing hole, comparing to it without vibration. Besides, the resonance phenomenon disappears at the feed to generate good effect. It is expected to reduce various vibration problems faced by processing with machine tools in order to enhance the international competitiveness of processing tool manufacturers.

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Liu, Li Li. "Online Scheduling with Incompatible Job Families on Batch Processing Machine(s)." Applied Mechanics and Materials 345 (August 2013): 408–11. http://dx.doi.org/10.4028/www.scientific.net/amm.345.408.

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This paper considers online scheduling with incompatible job families on single batch processing machine and parallel batchprocessing machines. Online algorithm is developed and the performance ratio of the algorithm is analyzed for the problem under consideration, respectively.

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Fan, Jing. "Integrated Scheduling Problem on a Single Bounded Batch Machine with an Unavailability Constraint." Discrete Dynamics in Nature and Society 2020 (December 1, 2020): 1–9. http://dx.doi.org/10.1155/2020/8625849.

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We consider a scheduling problem where a set of jobs are first processed on a machine with an unavailability interval and, then, delivered to the customer directly. We focus on an integrated schedule of production and distribution such that the sum of the maximum delivery time and total delivery cost is optimized. We study two classes of processing machines in the production part. In the first class, the serial-batch machine, the processing time of a batch is the sum of the processing times of its jobs. In the second class, the parallel-batch machine, the processing time of a batch is the maximum processing time of the jobs contained in the batch. The machine has a fixed capacity, and the jobs are processed in batches under the condition that the total size of the jobs in a batch cannot exceed the machine capacity. Two patterns of job’s processing, i.e., resumable and non-resumable, are considered if it is interrupted by the unavailability interval on the machine. In the distribution part, there are sufficient vehicles with a fixed capacity to deliver the completed jobs. The total size of the completed jobs in one delivery cannot exceed the vehicle capacity. We show that these four problems are NP-hard in the strong sense in which the jobs have the same processing times and arbitrary sizes, and we propose an approximation algorithm for solving these four problems. Moreover, we show that the performance ratio of the algorithm is 2 for the serial-batch machine setting, and the error bound is 71/99 for the parallel-batch machine setting. We also evaluate the performance of the approximation algorithm by the computational results.

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