Technical Personnel Research Articles

Research on Teaching Reform of Electrical Power System Relay Protection Course based on Engineering Professional Certification

Under the background of globalization and the rapid growth of power technology, the teaching of Electrical power system (EPS) relay protection is facing new challenges and opportunities. The traditional teaching mode and content have gradually exposed the problems of being out of touch with the needs of the industry and lacking practicality and innovation. At the same time, engineering professional certification, as an internationally accepted education quality assurance system, provides a clear direction for the educational reform of power engineering specialty. In order to adapt to this change, this article deeply studies the teaching status of EPS relay protection course, finds its existing problems, and puts forward corresponding reform ideas. In order to meet the development needs of the power industry, this article puts forward a student-centered teaching concept, combines the perspective of liberal arts, strengthens the humanistic care and social responsibility education of the course, and enhances students' communication and expression ability. Through the reform, it is expected to cultivate power engineering and technical personnel with innovative spirit, practical ability and social responsibility, and make contributions to the safe and stable operation of the EPS. In this article, the reform ideas and implementation suggestions are elaborated in detail, which provides useful reference for the education of power engineering specialty.

Power system risk assessment strategy based on weighted comprehensive allocation and improved BP neural network

AbstractDuring the operation and maintenance of the power system, power outages and supply‐demand imbalances can disrupt the normal power supply process. This issue must be mitigated or even resolved through the implementation of an appropriate power system risk warning. The article proposes a self‐assessment and early warning strategy for power system hazards based on an enhanced ant colony optimization algorithm (IACO) and a BP neural network. First, a combination of the Analytic Hierarchy Process (AHP) and the Entropy Weighting Method (EWM) is used to assign weights comprehensively to indicators that have a significant impact on the stability and safety of power system operation, thereby avoiding the negative impact of subjective experience or objective factors on the weight allocation results. Secondly, multiple regression analysis is used to calculate the risk assessment results of the selected indicators and weights corresponding to the power system. Training and testing samples for the BP neural network were calculated based on the weight allocation procedure described previously. Then, IACO is employed to global optimize the weights and thresholds of the BP neural network, and an enhanced BP neural network model for independent power system risk assessment is developed. The designed risk assessment and warning strategy was finally evaluated. The results indicate that the proposed power system risk assessment and early warning method can precisely predict the actual operating status of the power system based on weight values, thereby enhancing power supply quality by providing technical personnel with a data reference.

Adverse Events Among Plateletpheresis Donors in a Tertiary Care Hospital at Dhaka, Bangladesh

Introduction: The rising demand for platelet transfusions among patients has increased the usage of automated blood collections. Many of the same reactions and injuries are found with pooled platelets received from whole blood donation, although notable differences exist. Objective: To study the adverse events (AEs) during plateletpheresis procedures in a tertiary care hospital and plateletpheresis procedure session profiles. Materials and Methods: This retrospective study was conducted from January 2021 to December 2021 by analyzing records of two-hundred and thirteen (213) plateletpheresis procedures done in transfusion medicine department. All the donors were male. All adverse effects were recorded and noted in the registrar. Results: A total of 13 (Thirteen) AEs were noted, of which 08 (61.53%) events were associated with donors, 03 (23.07 %) were owed to a fault in the kit/equipment, and 02 (15.38 %) were due to technical faults. Donor-related AEs included hematoma (23.07%), vasovagal (23.07%), and perioral tingling sensation (15.38%). Technique-related AEs were 23.07%, and faulty kit/equipment-related AEs were 15.38%. Conclusion: Apheresis donations performed on apheresis machines are safe. Careful donor selection, well-trained expert technical personnel, and supervision of experienced transfusion medicine specialists will make the donor’s experience more pleasant. Sir Salimullah Med Coll J 2023; 31: 67-72

Exploring the Significance of the Protection Column Model of Senior Professional and Technical Talents in Hospitals

Senior professional and technical personnel into the hospital senior, due to focus on administrative management, so that the mastery of professional skills cannot be carried out. What's more, some of them have gradually lost their ideals and beliefs after moving to leadership positions, and have inevitably become the key "hunting" objects, and finally slipped into the abyss of illegal and criminal offenses. For the country, medical field, hospitals, individuals, patients and society, this is a great loss. This paper focuses on the strategic long-term development of hospitals, based on the need to adapt to the development of medical and health care, mainly for the "protection of senior professional and technical personnel, value their existence, analysis and discussion of the significance of the protection of senior professional and technical personnel, to achieve the non-administrative mode of senior professional and technical personnel" to discuss.

Mikhail Ziegler, the First Professor of Metallurgy at Warsaw Polytechnic, and His Contribution for Developing our Knowledge about Steels

The article presents results of research on the origin and development of scientific schools in the field of metallurgy in Eastern Europe at the turn of the 19th–20th centuries, associated with the scientific and pedagogical activities of the famous scientist Professor Mikhail Karlovich Ziegler in the higher technical educational institutions of Warsaw (Warsaw Polytechnic Institute of Emperor Nicholas II), Kharkiv (Kharkov Technological Institute of Emperor Alexander III), St. Petersburg (Petrograd Polytechnic Institute) and Moscow (Moscow Mining Academy). The main facts of the biography of this scientist and educator are given. The stages of formation of M.K. Ziegler as a personality and a scientist against the backdrop of occurring historical processes are shown. The Soviet period of his activity was considered separately. The scientific achievements of Professor Ziegler in the field of steel metallurgy, in particular, in determining the strength of steels depending on the conditions of their crystallization, studying the diffusion of impurities in steels, which became the foundation for the development of continuous casting technology, i.e.one of the most important world inventions of the 20th century, are systematized and analyzed. His organizational and educating contribution for the training of scientific and engineering personnel for the metallurgical industry is also estimated. The article includes interesting forgotten and little-known facts from the history of metallurgical science and the training of the higher engineering and technical personnel in educational institutions located on the territory of modern Ukraine and Poland.

Maintenance of Water Distribution Device and Shaft System at MDO Purifier on MV. Tanto Mitra

Purifier is one of the separators used on ships to separate fuel from water and dirt in the ship's fuel system. The purpose of this study is to determine the factors that cause damage and efforts to overcome problems in the Water Distribution Device caused by O-rings damaged seal and Shaft System due to damaged spiral gear and bearing on the M.D.O Purifier at MV.Tanto Mitra. The research method used in this study is a qualitative case study method. Sources of research data were obtained from primary and secondary data, including observation, literature study, ship documentation, and interviews with technical personnel responsible for the maintenance of the M.D.O Purifier. The data obtained were then analyzed to identify problems and factors that influence its performance using Fishbone analysis. The results of this study indicate that the factors that cause damage to the Water Distribution Device and Shaft System in the M.D.O Purifier at Mv. Tanto Mitra lacks routine purifier maintenance, according to PMS. The operation does not comply with S.O.P and the lack of purifier spare parts and crew engine communication for purifier maintenance. Through optimal maintenance, it can increase the operational efficiency of the purifier, reduce the risk of disruption, and extend the life and performance of the purifier to remain optimal on a ship.

Psychological counseling on the anxiety of technical personnel

BackgroundAnxiety disorder is a common psychological disorder, manifested as excessive worry, fear, fear and other emotions, seriously affect the quality of life of patients. The therapeutic methods of psychological counseling include cognitive behavior therapy, interpersonal therapy, psychodynamic therapy and so on. Compared with drug treatment, psychological counseling does not produce drug dependence, fewer side effects, and good long-term effects. This study is based on psychological counseling to explore the anxiety of technical personnel in strategic emerging industries in Fujian province, China.Subjects and MethodsIn this study, 338 technical personnel in strategic emerging industries in Fujian Province were selected as the research subjects and divided into experimental groups and control groups with same number. The control group did not take any intervention measures, and the experimental group received psychological counseling. The scores of Self-rating Anxiety Scale (SAS), self-rating Depression Scale (SDS), Wechsler Adult Intelligence Test (WAIS-RC) and Health Survey Summary Form (SF-36) were compared between the two groups. T-test was performed on the measurement data.ResultsBefore the experiment, there was no significant difference in SAS and SDS scores between the two groups (P > 0.05). After the experiment, SAS and SDS scores of the experimental group were significantly lower than those of the control group (P < 0.05). The scores of verbal comprehension, memory and attention in the experimental group were significantly higher than those in the control group (P < 0.05). The scores of physiological function, mental function, mental health and vitality of the experimental group were significantly higher than those of the control group (P < 0.05).Reply: Thank you for pointing out this issue. We have rewritten the methods and results section of another article.ConclusionsPsychological counseling can effectively alleviate the anxiety of technical personnel in strategic emerging industries in Fujian Province and improve their quality of life.AcknowledgementXiamen Institute of Technology 2023 University-level Research Fund Project (No.KYZX2023028); The 2022 “I contribute good ideas to the construction of A New Fujian” (No.JAT22128).

Operation Parameters Variation of Air Source Heat Pump According to the Outdoor Temperature

Air source heat pumps (ASHP), known as energy efficient systems, emerge as environmentally friendly and economical solutions for building heating. Unfortunately, the operating parameters of ASHPs and accordingly their performance are directly affected by the daily and seasonal temperature changes of the outside air. In this study, change in operation parameters of a selected ASHP with 3.4kW nominal heating capacity is investigated with a calculation method based on the logarithmic mean temperature difference, between -10°C to 18°C outdoor temperature range with 2°C steps, at constant compressor power. The study is verified with published COP data of the manufacturer. Results are shared with graphs that give the variation of refrigerant evaporation and condensation temperature and pressure, COP, and condenser heating load according to outdoor air temperature. A raise from -10°C to 18°C in outdoor temperature, increases the COP value from 3.38 to 5.49. Detection of the increase in evaporation pressure in parallel with the outdoor temperature may allow easy control of the refrigerant charge level with a manometer. This study can be a useful guide for researchers who aim to determine the outdoor temperature dependent operating parameters of an ASHP and for technical personnel who need this information in fields.

Impact of the National Nursing Development Plan on nursing human resources in China: An interrupted time series analysis for 1978–2021

BackgroundShortages of nurses and unequal distribution of nursing staff have been huge challenges for global health services. ObjectivesThe aim of our study was to evaluate the impact of the National Nursing Development Plan on nursing human resources in China. MethodsAn interrupted time series design was used in this study. The data for this study were extracted from the National Health Statistics Yearbook from 1978 to 2021. The Ministry of Health issued the National Nursing Development Plan (2005–2010) in July 2005. Subsequently, the strategic plan was issued every 5 years: the National Nursing Development Plan (2011–2015), the National Nursing Development Plan (2016–2020), and the National Nursing Development Plan (2021–2025). This study used five indicators including 1) the number of registered nurses (RNs) in China, 2) the number of RNs per 1000 population in China, 3) the proportion of RNs in health technical personnel in China, 4) the doctor–nurse ratio and 5) the number of nurses working in primary medical institutions to evaluate the changing trend of nursing human resources in China from 1978 to 2021. ResultsInterrupted time series analysis showed that after the implementation of the National Nursing Development Plan (2005–2010), the building of nurses in China was gradually strengthening, and the number of RNs in China increased by 0.198 million per year (95%CI 0.174–0.223; P < 0.001); the number of RNs per 1000 population (Coefficient = 0.139; 95%CI 0.123–0.154; P < 0.001); the proportion of RNs in the total number of health professionals in China has increased from 29.6 % to 44.6 % (Coefficient = 0.010; 95%CI 0.009–0.010; P < 0.001); in China, the doctor–nurse ratio increased by 0.024 (95%CI 0.019–0.029; P < 0.001). In 2021, the number of RNs working in primary medical institutions increased by approximately 0.86 million compared with that in 2005, and the proportion of RNs in the country increased by 1.4 %. The development of nurses is especially tilted to the primary level to meet the health and nursing needs of the primary level. ConclusionsThe implementation of the National Nursing Development Plan has greatly expanded the scale of nursing human resources in China and significantly optimized the efficiency of allocation. The implementation of the National Nursing Development Plan (2011–2015) and the National Nursing Development Plan (2016–2020) well continued the strategic plan from 2005 to 2010, further expanded the nursing workforce and further optimized the allocation efficiency. Tweetable abstractThe implementation of the National Nursing Development Plan has greatly expanded the scale of nursing human resources in China and significantly optimized the efficiency of allocation.

Medical Service Dimensions and Patient Satisfaction in Public Tertiary Hospitals in Akwa Ibom State, Nigeria

This research examined medical service dimensions and patient satisfaction in public hospitals in Akwa Ibom State. Its specific aim was to determine the joint effects of medical service reliability and tangibility on patient satisfaction in tertiary public hospitals in Akwa Ibom. The researcher adopted the cross-sectional survey research design. Primary data were obtained from 322 patients of tertiary public hospitals using a structured questionnaire. The data were analysed and interpreted using descriptive statistics, while hypotheses testing was done using multiple regression in the Statistical Package for the Social Sciences (SPSS 23). The findings made revealed that medical service reliability and tangibility had significant joint positive effects on patient satisfaction in public hospitals in Akwa Ibom State. Hence, the researcher recommended the following, among others: the services of public hospitals should be made more timely, accurate and dependable so that patients can have the confidence to visit public hospitals whenever they have medical conditions requiring attention and that public hospitals should be refitted with cutting edge medical facilities, technology and technical personnel to ensure that patients have unfettered access to satisfactory medical services.

قائمة مقترحة لعوامل تقييم نظم البرمجيات المحاسبية

There is an increasing number of small businesses that are moving their accounting systems to computerized systems. There are many accounting software systems available on the market that meet a wide range of needs, company size, and industries. Small businesses simply cannot choose the right software that suits their needs due to a lack of experienced personnel. Previous research has addressed the process of selecting a software system or providing a software selection model for large organizations. In this study, we reviewed the most important previous studies in the field of study, focusing on the most important factors influencing the evaluation process. The validity of these factors was taken into account for small companies that lack technical personnel that can help them carry out this task.

Studi Kasus Pola Komunikasi dalam Meningkatkan Kinerja pada Dinas Komunikasi dan Informatika Provisi Sumatera Selatan

This research aims to determine organizational communication patterns in the departmen tcommunication and informatics in the city of Palembang. Humans as social creatures need communication in their lives, meaning they need other people or groups to interact with each other. The method used is qualitative research. Then the research object is in the communication and information service of the city of Palembang, Sumatra, while the research subject is the head of the e-government services sector, head of the application development section, technical personnel. The results of this research are agencies under the auspices of the Palembang city government which carries out the authority for communication and government affairs. informatics

WAYS OF ENSURING THE COMPETITIVENESS OF SMALL AND MEDIUM-SIZED MACHINE-BUILDING ENTERPRISES OF UKRAINE IN THE EUROPEAN INTEGRATION CONTEXT

The issues of the modern direction of sustainable development of the competitive machine-building industry in Europe and the possibility of transforming the experience of developed European countries into a strategy for the development of small and medium-sized machine-building enterprises in Ukraine are considered. It was noted that it is SMEs that are the basis for the development of the EU economy, and the rationale for this fact was given. It was emphasized that the engineering industry is the largest sector of the EU economy in terms of the number of enterprises, employment of workers, production and value added. It is assumed that it is the development of SMEs in the machine-building industry of Ukraine that will become a significant contribution to the accelerated restoration of the social and economic well-being of Ukrainian society during the period of the country's recovery. A comparative analysis of the numerical number of machine-building enterprises of various sizes is given both in the developed countries of Europe and in Ukraine. The need for the development and implementation of digital services in the machine-building industry of Ukraine, in accordance with the concept of Industry 4.0, was emphasized at all stages of the product life cycle to ensure the flexibility and competitiveness of SMEs. The barriers to the implementation of the 4.0 concept for the sustainable development of small and medium-sized businesses in the world are analyzed, and individual barriers are identified that today pose a threat to the development of the Ministry of Railways of Ukraine as a whole. It is noted that one of the biggest problems in the world development of the Ministry of Railways as a whole is the problem of training (retraining) a new generation of qualified personnel. It is concluded that in order to develop competitive SMEs in Ukraine in the context of its integration into the EU, it is necessary to pay attention to the training of highly qualified technical personnel who, on the one hand, can play the role of system integrators and implementers of Industry 4.0 tasks, and, on the other hand, be able to solve the associated problems of mechanical engineering technology from idea to product manufacturing using digital services based on a single digital core. The scientific value of the work lies in the substantiation of ways to ensure the competitiveness of SMEs based on the foundations of the symbiosis of education, science and manufacture on the basis of a single digital core.

Design of A High-Precision Component-Type Vertical Pendulum Tiltmeter Based on FPGA.

This paper presents a high-precision component-type vertical pendulum tiltmeter based on an FPGA (Field Programmable Gate Array) that improves the utility and reliability of geophysical field tilt observation instruments. The system is designed for rapid deployment and offers flexible and efficient adaptability. It comprises a pendulum body, a triangular platform, a locking motor and sealing cover, a ratiometric measurement bridge, a high-speed ADC, and an FPGA embedded system. The pendulum body is a plumb-bob-type single-suspension wire vertical pendulum capable of measuring ground tilt in two orthogonal directions simultaneously. It is installed on a triangular platform, sealed as a whole, and equipped with a locking motor to withstand a free-fall impact of 2 m. The system utilizes a differential capacitance ratio bridge in the measurement circuit, replacing analog circuits with high-speed AD sampling and FPGA digital signal processing technology. This approach reduces hardware expenses and interferences from active devices. The system also features online compilation functionality for flexible measurement parameter settings, high reliability, ease of use, and rapid deployment without the need for professional technical personnel. The proposed tiltmeter holds significant importance for further research in geophysics.

รูปแบบการประชาสัมพันธ์ของมหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ ในยุคไทยแลนด์ 4.0

The objectives of this research are 1) to study the elements of the models for public relations in the fourth industrial revolution. 2) to develop models of public relations for King Mongkut's University of Technology North Bangkok in the fourth industrial revolution and 3) to evaluate models of public relations of King Mongkut's University of Technology North Bangkok in the fourth industrial revolution. The researcher studied from a sample consisting of students, personnel, people, journalists and stakeholders of King Mongkut's University of Technology North Bangkok. Determination of the sample size was done by using the table from Taro Yamane formula at infinite level and using a sample of 400 people. The research instruments consisted of interviews and questionnaires used including average, standard deviation and stepwise multiple regression analysis. The result found that the elements and forms of models of public relations in the fourth industrial revolution consist of the main components and sub-components as following: the organization executives consists of 1) organizational policies and 2) needs to receive information. The organization consists of 1) the models of public relations that are modern and 2) the organizational communication plan. The target group consists of 1) the communication plan of the organization 2) the leadership of the executives 3) the design of public relations and 4) the budget of the organization. Public relations channel consists of 1) public relations news 2) public relations time and 3) expertise of technical personnel and data include (1) public relations success evaluation 2) modernization of technology and 3) corporate communication planning. The results of the evaluation of models of public relations found that both of the appropriateness and the feasibility of applying the model have the highest mean value.

Technological Innovation in the Financial Services Industry

With the rapid development of global network platforms and science and technology, some emerging financial technologies (Fintech) have been applied to commercial activities and promoted the development and evolution of business models to a certain extent. However, the problems exposed at the same time have not received full attention. Based on the application examples of financial technology (e.g., online payment, peer-to-peer lending, robo-advisor, and blockchain) collected this year and the comments of some authoritative persons, this paper will objectively analyze financial technology from the aspects of current situation, development potential, risks and limitations. The study found that although the lack of financial technology has significant advantages in business activities, its risks and limitations are also a major challenge to the future development of financial technology in a period of rapid development. Relevant technical personnel are needed, and the cooperation between enterprises and the government is the healthy and sound development of financial technology.

Research on wheat flour‐making technology based on discrete elements

AbstractThe operating characteristics of a mill's rolling distance and roller speed during wheat‐milling were studied to provide a reference for optimizing the operating parameters of the mill. The high‐performance discrete element method software (EDEM) was used to establish a roller‐crushing system for wheat flour production. Numerical simulations of wheat flour production were performed using this system. It was found that increasing the roller distance of the flour mill machine could reduce the wear of the grinding rolls and the power of the grinding roll system, which reduced the crushing rate of wheat during the milling process. Increasing the grinding roll speed can reduce the wear of the grinding rolls but will increase the wheat‐crushing rate. At a constant fast roller speed, increasing the speed ratio increased the wheat‐crushing rate which reduced the power of the grinding roller system. During the grinding roll wear process, the obtuse and sharp angles gradually disappear. A comparison of the simulation and experimental results shows that the discrete element method can accurately predict the wear of the grinding roll.Practical ApplicationsThe milling machine is a key piece of equipment used for making wheat flour. The rolling distance, speed, and speed ratio of grinding rolls are important operating parameters during mill operation. Selecting specific parameters will directly affect the quality of wheat‐milling and the economic efficiency of the milling enterprise. This study adopted a discrete element method to study the effects of these parameters on wheat milling, providing a good reference for the technical personnel of milling enterprises.

Public education and professionalisation of Italian Agriculture (1861–1914)

Abstract This paper analyses the formation in Italy of a school system focused on the training of technical and managerial personnel in the agricultural sector. Drawing on a rich literature on the relationship between school training, social change, and economic modernisation, this study details an under-researched aspect of the formation of the national state. Italy constitutes an exemplary case study as for the reforming action of public institutions in the field of education as well as the modernising policies that concerned the rural sector of the country before the First World War. Schools of agriculture in Italy became a means of social advancement not only for a wide sector of rural society but also for the children of the artisan and commercial bourgeoisie of small urban centres. This study thereby makes a novel contribution to the ongoing debate on the development of agriculture-related professions in Italy between the nineteenth and twentieth centuries.

Exploring the Essence and Effectiveness of Dual Subject Combination from the Perspective of School-Enterprise Cooperation

It is necessary to strengthen the training of skilled and technical personnel in Vocational education, deepen the cooperation between schools and enterprises, strive to promote the effectiveness of the joint operation of dual subjects, and forcibly reverse the deep-rooted traditional concept of Vocational Education in China. Based on the perspective of school-enterprise cooperation, this paper combs and analyses the validity of the combination of "dual" subjects from the relevant literature of "dual system" in Germany, and provides some experience for the joint running of schools.

Improving PSM and HSEMS compliance in Malaysian upstream oil and gas industry: A case study assessment for plug and abandonment activities

AbstractProcess safety incidents in the oil and gas industry can have serious consequences. In the United States and Malaysia, standards for process safety management (PSM) have been established by US OSHA and PETRONAS, respectively. However, these standards are not always properly understood or followed by employers, resulting in ineffective safety programs and uncontrolled hazards. Plug and abandonment (P&amp;A) activities in the upstream oil and gas industry require high control of well barriers. To assess the gap between PSM industrial standards and crew awareness in P&amp;A activities, a study was conducted throughout one cycle of the project campaign. The study found that 70% of offshore crews had a high awareness level of the health, safety, and environment management system (HSEMS) and PSM, and 96% compliance was achieved from audit activities. However, two proposed PSM elements scored low in the assessment, indicating a need for improvement in site implementation. The study provides valuable information for offshore crews and readers seeking to improve and assess PSM elements in process safety. The results can help identify and control potential hazards related to technical safety, operational safety, and personnel safety. Furthermore, the study aims to support the development and implementation of PSM standards in Malaysia.