Mechanical Manufacturing Enterprises Research Articles

Cross-cultural Research of Speech Codes: Transitivity Processes in Corporate Social Responsibility Reports

Evolving from ethnographic research that determines what meanings are shared within a culture, studies regarding Speech Codes Theory have been conducted with implications for intercultural communication. Arguing for transitivity as speech codes in diverse cultures, this paper aims to describe and explain the transitivity attributes of English-medium Corporate Social Responsibility (CSR) reports by Chinese and British/American corporations, and the transitivity variances between industries by Chinese corporations. Results reveal that frequencies of transitivity features in the Chinese CSR reports are significantly lower than those in the British/American reports, and that the relational process dominates in the corpus under investigation. Also, cross-industrial comparisons among Chinese corporations show that the mechanical manufacturing enterprises and the iron & steel enterprises share similar transitivity codes, but they differ from the energy enterprises distinctively. The paper concludes that linguistic/cultural contexts, translation strategies, moves in the CSR reports, and industry attributes together contribute to the transitivity codes and communicative conducts in different cultural and industrial backgrounds. This paper might help writers/translators of CSR reports in China better understand lexical and functional conformities and peculiarities reflected in Chinese and British/American CSR reports, enhance their corporate narration in the international communities, and thus reinforce communication with the general public by appropriately expressing and accurately translating transitivity processes.

Arsitektur Perusahaan Untuk Mendukung Transformasi Digital: Systematic Literature Review

This study aims to describe the development of studies on Enterprise Architecture (EA) in supporting Digital Transformation. The Systematic Literature Review (SLR) method was used to obtain 36,513 studies with manual searches in two databases, and finally 12 primary studies were selected with a time limit of 2018-2022. A total of seven issues/issues were identified and analyzed, namely EA support analysis, EA weakness analysis, Enterprise Architecture Management (EAM) benefit analysis, EA evolution, EA method development, and EA model development. EA's contribution is explained with a description of the problems / issues that have been identified, and the research sectors analyzed include Small and Medium Enterprises in Mechanical Engineering, manufacturing, health, and Small and Medium Enterprises in general, and some studies that do not limit their research sectors. The results show that studies on EA in supporting Digital Transformation have decreased in the last five years. Studies related to the benefits of EAM still show EA's weakness in supporting Digital Transformation. The limited research sector consists of SMEs and health. This review provides some guidelines for future researchers who want to research on this topic.

Application of ISO 1999:2013 (E) model in risk assessment of hearing loss caused by industrial noise

To assess the risk of hearing loss caused by industrial noise exposure of welders and assemblers in a mechanical equipment manufacturing enterprise, and to explore the practical application and possible underestimation of ISO 1999∶2013(E) model. A total of 829 noise-exposed male workers from a mechanical equipment manufacturing enterprise were selected as study subjects. The questionnaire survey was administered, and individual noise exposure level(L_(Aeq.8 h)) and hearing loss level were measured. The risk assessment method of ISO 1999∶2013(E) was used to calculate the change of hearing threshold level and the risk of noise-induced hearing loss. By comparing the median of permanent hearing threshold shift caused by actual noise with the median of ISO1999 predicted value, the reason of the difference between the predicted value of ISO 1999∶2013(E) model and the actual value was analyzed. The L_(Aeq.8 h )was 89.5 dB(A), 77.4%(n=62)of the individual noise exposure levels exceeded 85 dB(A), and 24.6% of the participants(n=829) had different degrees of hearing loss. There was significant difference in hearing loss rate between welding and assembly positions(χ~2=10.07, P<0.01). The risk of noise-induced high-frequency hearing loss of 90% welders was 11.2% at the age of 50, and 14.0% at the age of 60. The risk of noise-induced deafness of 90% welders was 4.3% at the age of 60. The risk of high noise-induced frequency hearing loss of 90% assemblers was at the range of 4.0%-9.0% at the age of 40, 20.8% at the age of 50, and 22.5% at the age of 60. The risk of noise-induced deafness of 90% assemblers was at the range of 1.4%-6.4% at the age of 50, and 9.0% at the age of 60. Compared with actual median of permanent hearing threshold shift, ISO1999∶2013(E) predictions underestimated the median of permanent hearing threshold shift at 10.7 dB. The noise hazards of welding and assembly positions in mechanical equipment manufacturing enterprises are high relatively. ISO1999∶2013(E) can be used to predict the risk of noise-induced hearing loss in workers, but attention should be paid to the risk underestimation of this model.

Design and Application of Computer Mechanical Control System

The practical application of computer control system in mechanical manufacturing can make communication between various instruments, thus replacing the transfer and control of manpower as each instrument. The design and analysis of computer control system in mechanical manufacturing enterprises is beneficial to the innovation of enterprise equipment. Compared with the traditional mechanical manufacturing equipment, the manufacturing enterprises using computer control system have great competitiveness and greatly improve the precision and performance of the products. This paper first analyzes the current situation of computer control system in mechanical manufacturing industry, and then analyzes the design, advantages and disadvantages of computer control system and its development trend in detail.

Research on Production Process Parameter Management Based on MES System

It is very important to realize the information management of product parameters in the production workshop, which can timely, accurately, clearly and clearly display the real-time parameter data in the production process, and ensure the efficient cooperation of various departments, so as to improve the processing efficiency and product processing quality of the production workshop. In this paper, the MES system of a military machinery manufacturing enterprise is used as the research platform to collect the product process data of the workshop and form the product parameter library of the production process of the workshop, taking the parameter library as the research object, a parameter management mechanism suitable for mechanical manufacturing enterprises is established to carry out efficient parameter management. The parameter management based on MES system consists of quality card management, parameter management, parameter optimization, parameter filling and verification, and parameter analysis. Neural network and other methods are used to optimize the selection of product parameters and analyze the historical product parameters. The application results show that the parameter management mechanism proposed in this paper can realize the effective management of the production process parameters of the manufacturing enterprise workshop, improve the processing efficiency and product quality, and has a certain reference value for the manufacturing enterprise production process parameter management.

Sustainability assessment of mechanical manufacturing systems in the industrial sector

Sustainability assessment is growingly recognized as an effective analytical methodology and management tool useful for managing and improving sustainability performance. In this study, a novel approach of sustainability benchmark assessment is presented to overcome the performance quantification and hierarchization deficiencies of current sustainability assessment methods. A conceptual model demonstrating how sustainability assessment of mechanical manufacturing systems in the industrial sector produces mutually beneficial energy, economy and environment outcomes that serve to reduce energy and cost demand and mitigate environmental challenges is illustrated. Through constructing the sustainability index system encompassing energy, economy and environment perspectives, the energy, economy and environment-oriented assessment models are presented. Furthermore, two concepts concerning sustainability benchmark and sustainability benchmark rating are proposed to benefit the sustainable performance quantification and hierarchization of mechanical manufacturing systems. This method based on sustainability benchmark assessment is applied to a small mechanical manufacturing enterprise in China through which users can visualize and identify sustainability performance for different mechanical manufacturing systems. This approach can offer the effective feedback for users to enhance process management and technical improvement (process optimization) and to reconsider the energy, economic, and environment in new production cycle, enabling sustainability continuous cycle improvement. This study contributes a new theoretical insight for sustainability assessment by offering relational ties with technical and managerial aspects in support of industrial sustainability.

Spatiotemporal Variability and Source Apportionment of Soil Heavy Metals in a Industrially Developed City

In the present study, a total of 1130 soil samples were collected in 2003 and 2013 in the Ningbo city district, and the content of eight typical heavy metals were measured. The degree of heavy metal pollution in the soil in the study area was evaluated using the pollution index evaluation method. The temporal and spatial variation in the pollution were analyzed by the geostatistics method, and principal component analysis (PCA) and the UNMIX model were used to analyze the heavy metal pollution sources. The results showed that:① excluding As, the mean values of the other seven heavy metals in both periods exceeded the soil background values in Zhejiang province and national background values, which indicated that heavy metal pollution is common in the soil from the study area. From 2003 to 2013, the mean content of all elements increased to some degree, indicating that the heavy metals pollution was generally aggravated in 10 a; the increase in the mean Hg content was the greatest. ② The evaluation results based on the single-factor pollution index showed that the pollution degree was high for Hg; moderate for Cd, Cu, and Pb; slight for Zn, Cr, and Ni; and unpolluted for As. The evaluation results based on Nemero's comprehensive pollution index showed that the pollution index for all samples exceeded the precaution value, and the number of soil samples that were characterized as heavily polluted with a comprehensive pollution index over 3 had increased significantly. ③ The spatial distribution of the same heavy metal in different periods presented similar characteristics. Generally speaking, the spatial distribution of Pb was similar to that of Hg, and the spatial distributions of Cr, As, Cu, Zn, and Ni were similar to each other; high value areas were mainly concentrated in the four areas of Haishu, Jiangbei, Jiangdong, and Zhenhai districts, where the polluted enterprises were densely distributed and human activities were frequent. ④ Based on PCA and the UNMIX receptor model, the source analysis results of soil heavy metals in 2013 were essentially the same, i.e., the source of heavy metal pollution in the study area included industrial sources and living sources. Industrial sources of heavy metal pollution had the highest contribution rate and derived from industrial wastewater, waste gas, and waste residue discharged by plasticizing, mining, and metallurgical enterprises; chemical and mechanical manufacturing enterprises; etc., causing the accumulation of Cr, As, Cu, Zn, and Ni in the soil. The living sources had the second highest contribution rate and originated from the pollution of particulates and dust caused by domestic waste, automobile exhaust, and road wear. Additionally, natural factors had small contribution rates, mainly due to the spread of pollutants by prevailing winds and atmospheric settlement.

A parts supplier selection framework of mechanical manufacturing enterprise based on D-S evidence theory

Parts supplier selection (PSS) is an important part of supply chain management of manufacturing enterprise. In the PSS process, the values of evaluation indicators are often uncertain and incomplete and the importance degrees of evaluation indicators are often instable. To solve this problem, a PSS framework of manufacturing enterprise based on D-S evidence theory is proposed. The indicator system for PSS is established, and the indicators are divided into three categories: quantitative, comprehensive qualitative and direct qualitative. The initial indicator values are processed by membership grade method to obtain the tendency degree. A two-order weighted D-S evidence theory model is constructed to evaluate the screened candidate suppliers. A manufacturing enterprise application case is given finally to illustrate the correctness and feasibility of the proposed framework.

Research and Analysis of Low-Carbon Manufacturing Operation Model in Life-Cycle Oriented Mechanical Manufacturing Enterprises

Mechanical manufacturing industry is an important part of China's national economy, it is the main source of material used in people's life, which provide large-scale production materials for the society. Based on the previous work experience, this paper introduces the framework model of low-carbon operation process in machinery manufacturing enterprises oriented to life-cycle, and discusses the construction process of multi-dimensional process model of low-carbon operation in mechanical manufacturing enterprises from four aspects, including target system framework, low-carbon operation strategy, life cycle process and support system.

Research on Green Electromechanical Product Design Based on Disassembly

Green electromechanical product is the core which protects the environment and resources. Design for disassembly is the main content of green electromechanical product design. Traditional electromechanical product design is chief considerations the effective use of assembly and material. It is not consideration the waste processing, and is an open-loop system. When it creates wealth for the mankind, electromechanical product produce a lot of wastes, and Cause a large number of resources waste. At present, the waste disposal costs are more increasing. Mechanical manufacturing enterprises have pay attention to effectively implement the recycling and reuse of materials. Green m electromechanical product disassembly is an important content of green design. In the product design stage, enterprise must put disassembly as design objective, considers product future reuse, efforts to improve the mechanical parts of the disassembly rate, form a mechanical product life cycle in closed-loop system. In this way, enterprises not only can save materials and energy, but also can reduce the pollution of environment.

Seasonal and spatial variations of heavy metals in two typical Chinese rivers: concentrations, environmental risks, and possible sources.

Ten metals were analyzed in samples collected in three seasons (the dry season, the early rainy season, and the late rainy season) from two rivers in China. No observed toxic effect concentrations were used to estimate the risks. The possible sources of the metals in each season, and the dominant source(s) at each site, were assessed using principal components analysis. The metal concentrations in the area studied were found, using t-tests, to vary both seasonally and spatially (P = 0.05). The potential risks in different seasons decreased in the order: early rainy season > dry season > late rainy season, and Cd was the dominant contributor to the total risks associated with heavy metal pollution in the two rivers. The high population and industrial site densities in the Taihu basin have had negative influences on the two rivers. The river that is used as a source of drinking water (the Taipu River) had a low average level of risks caused by the metals. Metals accumulated in environmental media were the main possible sources in the dry season, and emissions from mechanical manufacturing enterprises were the main possible sources in the rainy season. The river in the industrial area (the Wusong River) had a moderate level of risk caused by the metals, and the main sources were industrial emissions. The seasonal and spatial distributions of the heavy metals mean that risk prevention and mitigation measures should be targeted taking these variations into account.

Research and Development of Project Management System for Mechanical Products

Based on the informatization of mechanical manufacturing enterprise, the characteristics of mechanical manufacturing enterprise product development and research project have studied in this paper. Workflow technology was applied to the execution of project tasks . Through the adoption of user role - permission model, the system user access is controlled. In the end the method to develop the project management system is described.

Countermeasure Research about Cost Control of Automatic Lathe Tool Changing System

For automatic lathe tool changing system being widely used in mechanical manufacturing enterprises, this article analyses the life distribution and fault probability of tools. Considering a complete service life circle of the tool, and taking minimum expectation of average cost for producing qualified components as evaluation indicator, the most reasonable tool changing strategy is put forward to reduce production cost in this paper.

Design and Implementation for the Information Integration of Mechanical Manufacturing Enterprises

Mechanical manufacturing enterprises face numerous choices about information. In order to take full advantage of the information, the technologies and methods of implementing information integration should be carefully studied. Firstly, the developments of its standard protocols are analyzed. Secondly, the information integration of mechanical manufacturing enterprises is discussed. At last, an example is provided to illustrate the method of information integration.