34254 research outputs found
Sort by
Organizational Career Management of Maritime Industry, Organizational Support for Development, Career Adaptability and Organizational Commitment: A Serial Mediation Model
No full textThe maritime industry is one of important industries in Taiwan, ranking twelfth globally in terms of total capacity. However, it has long faced challenges such as shortage of seafarers and talent. Seafarers' organizational commitment towards shipping companies is particularly important. Based on signaling theory and career construction theory, this study examines the relationship between organizational career management and organizational support for development, and the serial mediation model linking organizational career management, organizational support for development, career adaptability and organizational commitment. The study also explores the relationships between the dimensions of career adaptability (concern, control, curiosity, and confidence) and different types of organizational commitment (affective commitment, continuance commitment, and normative commitment). The study utilized purposive sampling to collect data through online survey and time-lagged field study, obtaining a total of 125 current seafarers\ue2 samples. The results of the path analysis show that (1) Organizational career management is positively affect organizational support for development. (2) The relationship between organizational career management and continuance commitment is serially mediated by organizational support for development and control. (3) The relationship between organizational career management and normative commitment is serially mediated by organizational support for development and concern. (4) The relationship between organizational career management and normative commitment is serially mediated by organizational support for development and control
Innovative Dual-Ion Source Chip with Radio-Frequency Plasma for Mass Spectrometry Detection of Analgesics
No full textThis research develops an innovative integrated dual ion source chip that combines atmospheric pressure radio frequency (RF) plasma and glass capillary electrospray for the detection of molecules with varying polarity ranges. The chip has been used for detecting residual analgesics. Compared to the cross-shaped glass tube design used by previous researchers from our lab, this study adopted a chip-based design. This design significantly enhances the overall system stability and safety of the dual ion source. Compared to lower frequency alternating current dielectric barrier discharge (DBD) plasma, RF plasma generates plasma with a higher density. This, in turn, improves the ionization efficiency of the reaction gas and subsequently increases the ion concentration measured by the mass spectrometer. Moreover, the presence of both RF plasma and electrospray on the chip allows for the generation of two different ionization methods. This enables the simultaneous detection of polar and non-polar samples with a balanced ionization performance. To optimize the stability of this innovative RF plasma dual ion source chip during operation, this study adjusted the key experimental parameters based on the ion intensity signals detected from the mass spectrometer. A series of experiments was conducted to optimize and fine-tune various parameters, such as the voltage and power of the two ion sources, injection speed, gas flow rate, positioning, and spacing between them. The results demonstrated that the atmospheric pressure RF plasma produced by the chip could generate ion intensity as high as 1010 ions/cm3 under the conditions of 30 W power and 0.30 SLM helium gas flow rate. This performance enables it to provide stable and efficient ionization for nonpolar analytes, thereby facilitating subsequent mass spectrometry analysis. Moreover, in the dual ion source mode, both sources can generate and ionize ions simultaneously, ensuring stable operation and potentially higher ion intensities. The chip allows for rapid switching between different modes, providing suitable ion sources for samples with different polarities for ionization during mass spectrometry analysis. This research analyzed samples with different polarities, including camphor pills and cardiovascular drugs. By switching the ion sources of the chip to the appropriate mode for each sample, the researchers achieved good mass spectrometry signal results. Additionally, the study simulated the detection of analgesic residues in human urine environments. The results from the three different modes of ionization showed that the chip could effectively analyze the ionization of samples with different polarities, thereby detecting signals of compounds with various polarities. In the future, this chip can serve as a reliable ion source for rapid detection and large-scale analysis in mass spectrometry applications
The Study of the Impact of Bargirl Brokers on Public Security\ue2A Case Study of Kaohsiung City
No full text"Bargirl Brokers" is commonly known as "Brokerage Companies" and "Media Companies." It is a unique industry that has emerged rapidly in Taiwan's specific sector over the past 30 years. Due to its enormous market interests, it has attracted various parties and individuals vying for a share, leading to frequent disputes and violent incidents, such as street brawls, armed confrontations, and high-speed chases. These incidents have often made headlines in the media and have influenced public perceptions of public safety. Politicians have also taken advantage of the situation, citing the prevalence of street violence in Kaohsiung and the deterioration of public safety to intervene in police personnel matters, causing a crisis of morale within the police force and exacerbating public safety concerns.
This study primarily aims to investigate the impact of unlawful activities involving personnel from the " Bargirl Brokers " on public safety and explore opportunities to enhance legal regulations. The research will utilize qualitative methods, including in-depth interviews and observations, to collect data. Additionally, relevant literature will be reviewed to facilitate analysis and enhance the credibility and validity of the study.
The study suggests that government agencies should establish clear and specific regulations, requiring industry operators to maintain self-discipline, implement commercial and business registration, and fulfill tax obligations honestly. For those involved in street violence, a graded management database should be established for both companies and personnel. This will align with specific industry management policies adopted by city and county governments, helping to develop comprehensive support and safety management regulations for the industry. Ultimately, these measures aim to prevent the industry from being influenced by illegal activities and safeguard social security
A Negative Capacitance iTFET for Low Power Applications
No full textThis thesis presents a Negative Capacitance iTFET for low power application. The thesis is divided into two main parts. Firstly, we focus on simplifying the device structure to achieve process simplification. In the conventional heterojunction P-I-N doping structure, ion implantation and thermal annealing processes increase the thermal budget and manufacturing cost. To address this issue, we propose to establish contacts between metals and semiconductors with different work functions to create ohmic or Schottky contacts, generating inverted carriers and forming a PN junction. At the same time, we introduce the ferroelectric material HZO into the gate structure to induce a negative capacitance effect, thereby improving the gate control capability and steepening the subthreshold swing of the device. In addition, the transition from a heterogeneous interface to a single-material substrate structure simplifies the manufacturing process and reduces costs. In terms of material selection, we use narrow bandgap III-V compound semiconductor materials to increase the tunneling probability and consequently enhance the on current.
The second part of the study aims to improve the device characteristics for optimisation. From the results of the first part, we found that the tunneling effect had not been fully exploited. To address this, we increased the distance between the source and the metal, thereby increasing the overlap region between the gate and the source metal. This allowed us to make more effective use of line tunneling and consequently improve the on-state current. We also found that the device's off-state current was too high, mainly due to the tunneling that occurs between the source and drain when they are too close. To alleviate this problem, we adjusted the substrate doping and the Schottky barrier height of the device, thereby reducing the off-current. We also found that the distance between the gate and drain metals was too close, leading to band overlap and a ambipolar effect that caused carrier tunneling under negative voltage conditions. To overcome this, we increased the distance between the source and drain, but this could potentially reduce the on-state current due to serial resistance effects. Given the slim profile of the device, we have considered the impact of quantum confinement's effect and the expansion of the bandgap on carrier transport. Furthermore, we have taken into account the possible emergence of traps in real-world applications and suggested a trap-assisted tunneling model to tackle this challenge. Our proposed device utilized tunneling to its advantage and showed excellent immunity against trap-assisted tunneling. Later in the study, we investigated how the presence or absence of a ferroelectric material layer affects the characteristics of our device. Our findings demonstrate that this factor has only a minor influence on its features. Nonetheless, the inclusion of a ferroelectric material layer resulted in hysteresis effects, which could be reduced through the removal of the layer.
We replaced the heterojunction with a bulk material structure and successfully achieved a minimum subthreshold swing of 7.67 mV/dec, an average subthreshold swing of 22 mV/dec, and an excellent on-current ratio of 1.07 \uc3 106 at a drain voltage of 0.3 V. Our results underscore the considerable potential of our structure for uses with low drain voltages, specifically in low-power devices for upcoming applications with the Internet of Things (IoT)
Competitive Analysis of Brand Equity in the Era of Big Data: A Case Study of the Home Appliance Industry
No full textWith changing consumer behavior, companies increasingly analyze online reviews as consumers consider forum comments a crucial source of product information prior to purchasing. This shift has resulted in new market analysts techniques and tools that aid decision-making for managers and market analysts. Extracting valuable insights from forums heavily relies on text analysis, although there is still room for improvement in traditional Chinese compared to the well-developed English language. This study combines natural language processing and brand equity to offer a more effective analysis process in traditional Chinese.
Using sentiment analysis, semantic analysis, and volume analysis and visualized via interactive charts and dynamic network graphs, brand awareness, perceived quality, and brand association are measured. The focus is on analyzing brands in the home appliance industry.The findings demonstrate the effectiveness of text analysis in capturing information about competing brands. By designing customized dictionaries based on forum observations, analysis can be enhanced. The integration of insights and brand equity provides valuable implications for marketing and operational management.
Finally, future researchers can apply this process and analysis method to their own companies, utilizing volume analysis for brand awareness and sentiment analysis to gauge perceived quality. Semantic analysis reveals consumer associations with relevant products or concepts
A Study on Business Strategy of Green Industry: The Case of Electrochromic Glass Company
No full textExtreme climates around the world have triggered a revolution in the global Green Industry, which not only affects individual industries, but also affects the economic lifeline of whole country. The International Energy Agency (IEA) has declared that the world will achieve net-zero emissions by 2050 at the latest, and achieve a 50% reduction by 2030. It has become a trend that advanced powers and international leading companies will drive global technological innovation and industrial transformation, and vigorously develop green industries.
Electrochromic glass can isolate the far-infrared light of the heat source, achieve the effect of indoor temperature control, and reduce the large amount of energy consumed by office buildings and residences to keep cool in summer and keep warm in winter. It is an important technology to solve the problem of climate and environmental degradation. This research takes the development process of electrochromic start-ups in Taiwan as the framework, analyzes the entry barriers of specifications, literature data collection, SWOT analysis, Five Forces Analysis and ESG viewpoint analysis, and through case studies, the process of commercialization will build market competition strategies and a competitive advantage, explore the establishment of a strategic business model for Taiwan's electrochromic glass industry.
This study found that through the education and exchange of professional information on the platform, case companies have more opportunities to express their design concepts and ideas, and it is easier to show the ESG concept of products with the aid of text and images, and explain the ingenuity of energy saving and carbon reduction to earn the Customers' trust in the brand. The Case companies combined with the aluminum door and window industry developed products that are easy for customers to install. Not only to providing customers with a variety of product choices, but also successfully established a professional brand image. The differentiation of business models and products has a positive effect on the development of own brands.
And through the technical authorization of overseas enterprises, case companies will improve the overseas market development of domestic electrochromic glass enterprises, and accelerate the company's growth and expansion
Practice and Transformation of Chinese-style Patriotic Education Policy in Hong Kong
No full textThis study compares the differences in identity, ideology, and the regulatory system in Hong Kong before and after the handover to mainland China. The study finds that the patriotic education implemented by China in Hong Kong covers both schools and society, and attempts to transform Hong Kong people's national identity through exporting patriotic education. Overall, patriotic education in Hong Kong has evolved from a subtle approach in the early years after the handover to a strong intervention at this stage, mainly through the framework of "one country, two systems", with school education focusing on the arrangement of learning and examination subjects, teaching materials, teacher training and extra-curricular activities to guide students to learn patriotism and shape Chinese identity. In social education, China focuses on promoting the rule of law, respecting "one country, two systems" and learning about the Basic Law, opening many learning squares and patriotic bases, and organizing exchanges between China and Hong Kong to encourage the public to use resources to cultivate patriotism. This study suggests that the relevant authorities in Hong Kong should shift to a more moderate policy and action in the future, and extend the local culture of Hong Kong in a soft way. On the other hand, Taiwan can strengthen the development of Taiwan's cultural characteristics, so that young students can understand the differences between Taiwan and mainland China, and at the same time focus on economic development, so that cross-strait relations could be handled peacefully in a diversified way
The Influence Mechanism between Perceived Dirty Work and Work Change Intention: A Test of Moderated Mediation Model by the Sense of Calling
No full textThe purpose of this study is to explore the mechanism of the influence of sense of calling of dirty workers and job change intentions through the moderating mediation model. According to the Affective Event Theory (AET), this study explores the negative emotion (affective path) and occupational disidentification (non-affective path) generated by employees through the work itself, as a mediated mechanism linking the sense of dirty work and job change intention. In addition, this study also verified the moderating effect of calling on the two pathways, clarifying the relationship of these factors and building a mediation moderated mode.
Data were collected from 41 long-term care service units consisted of 366 caregiver workers who provided the information including that perceived dirty work, occupational disidentification, negative emotion, sense of calling, job change intention and demographic variables. Hierarchical regression modeling techniques were applied to test the models. The results reveal that employees' occupational disidentification and negative emotions give a partial mediating effect on the relationship between the perceive of dirty work and job change intention. The sense of calling will eventually mediate the mediating effect of perceived dirty work on job change intention through occupational disidentification or negative emotion. Through the verification of this study, the explanation of emotional event theory for employees' work behavior can be clarified, and it is also expected to provide substantial benefits to the current cultivation of long-term care workers
Deep Learning-Based Sum Rate Maximization for RIS-assisted Multi-User MISO Communication System with Implicit CSI
No full textNumerous recent works have investigated the efficacy of the Reconfigurable Intelligent Surface (RIS) approach, which is a potential technique for designing a configurable wireless environment by directing the incident signal in highly customizable ways using many passive elements. By automatically reflecting the signal waves from a transmitter to a receiver, the RIS can improve the performance of a wireless transmission system. Hence, we establish the RIS with a multi-user MISO communication system. Considering that the RIS typically contains a significant number of reflecting parts, it is difficult to estimate the channel between the RIS directly, so finding the best solution continues to be a challenging numerical task. Instead of estimate the channel first and then optimize the parameters, we show that it is possible using the received pilots to directly optimize the reflective elements and the beamforming. This is able to accomplished by configuring the map from the received pilots using a deep neural network, called graph-MLP, to optimize the phase shift and the beamforming. Numerical results demonstrated that it could be maximizing the sum-rate and the overall performance is greatly enhanced by optimizing the phase shift and the beamforming over conventional channel estimation and other deep neural networks
The Effect of fluid flow in molten pool induced by eletric beam
No full textIn this study, x=0(m) is used as the axis of symmetry to simulate the actual arc welding process of heating stainless steel, and Joule heat is used as a high-energy incident periodic electron beam to simulate the transient heat flow behavior of melting through two-phase flow . The deformation of the metal free surface is determined by the phase field method. In this research, energy, momentum, mass and equipotential function equations are calculated to simulate metal internal flow lines, pressure, temperature and equipotential distribution. This study also explores the corner flow between the melting zone and the unmelting zone. Corner currents affect eddies, surges, ripples. The results show that the driving forces are surface tension, thermocapillary force and Lorentz force