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Kinematic and Dynamic Analyses of Conjugate Cam Reducers with Rolling Balls
No full textReduceres are a crucial component in industrial transmission and automation systems. There are related applications robotic arms and vehicle industry, etc. These reducer operate to drive motors, which are typically designed for high speed and low torque. Through the reducer, the motor's speed is reduced while amplifying the torque. This study focuses on the development of a coaxial reducer utilizing multi-lobed cams combined with rolling ball. This reducer Characterized by low cost, easy manufacturing, compact structure, and lightweight design. This paper explores kinematic and dynamic analyses to validate the feasibility of this mechanism, and tests prototype mechanisms with two different ratios. The experimental results align with the anticipated design objectives
An interpretation of Taiwan\ue2s promotion of transitional justice in contrast with foreign experiences -- Taking ''the regulation of dealing with political parties\ue2 and their affiliated organizations\ue2 improper acquisition of property'' as an example
No full textAlong with the process of historical transformation, Taiwan's transitional justice also promotes the transformation of democracy, and Taiwan's political system develops towards the goal of a democratic constitutional system. Therefore, the political project of transformational justice was officially put on the agenda in the process of national political development in 2016.
Driven by civil society, Taiwan's transitional justice has been substantively enacted by the government to establish the legal status of transitional justice. At the same time, there are also many papers,periodicals, and public opinions among the people.
Among them, regarding the "handling of party property", various strata of society have different controversies and opinions. Of course, they have also been subject to different criticisms and extensive discussions.
Transformational justice under Taiwan's democratic transformation, the transition from authoritarianism to true democratic politics, and the formation of national democratic development are an inevitable and gradual process. Of course, there are various political factors and pressures that promote the transformation. This "democratic transformation" also promotes the so-called transformational justice.
In this political project, the Democratic Progressive Party, which is currently in power, has decisively and quickly formulated substantive legislative regulations and regulations, and implemented them into policies. This is of great importance to the operation of Taiwan's political power and the development of Taiwan's future party politics. Influencing factors.
Among them, the constitutional issues raised by the "Party Property Regulations" are full of interpretations and challenges to the authority of the Constitution. Will the "party property regulations" in "transformational justice" essentially turn into a power struggle between political parties? If it causes social division or antagonism among the masses, it will certainly affect the future development of Taiwan's democratic politics, which is worthy of discussion and observation.
This paper also uses the actions of transitional justice in six countries to compare possible problems in promoting transitional justice in Taiwan, and to interpret the meaning of transitional justice in our country. Then, using Germany as a teacher, we compare the handling of party assets based on various factors, analyze the differences in Taiwan's empirical actions, and try to reflect on and propose Taiwan's empirical actions in promoting "transformational justice" from the unique spirit of Taiwan's transitional justice and party property handling. , the spiritual connotation interpreted
Research and Development of High Frequency FMCW Radar System
No full textThis paper aims to develop and manufacture a dedicated radar flow measurement system for Taiwan. It focuses on the array radar at the KNTN station in Maobitou Park, Kenting, operated by the Ocean Center, as the research subject. The paper analyzes its structure and operational principles, with a primary focus on the internal key circuits or components such as the receiving board, transmission circuit, and data acquisition system. The goal is to reproduce and even propose entirely new circuits with the same functionality to reduce procurement costs and enhance modification flexibility.
Firstly, the paper conducts an analysis and measurement of the existing receiving board structure within the system. It is observed that lower-frequency beat signals result in lower amplitudes. To address the frequency response issue, the paper utilizes TINA-TI simulation software and identifies capacitors as the cause. Consequently, an improved receiving board, free from this condition, allows consistent amplitudes for various frequencies within the proposed DEWETRON data acquisition system.
Next, regarding the transmission circuit, the paper similarly dissects the structure and operational principles of the original RADCELF transmission circuit. Despite reproducing it based on the same concepts, an issue arises with the ACQ1001 circuit within the D-TACQ circuit, preventing the transmission of specified signals. Therefore, the paper opts for the AD9956 development board as the main platform to redesign a transmission circuit with the same functionality. Spectral analysis using a spectrum analyzer and Keysight 89600 VSA is employed to analyze the power and quality of the outputted frequency-modulated continuous wave, ensuring the desired efficacy.
Lastly, the paper integrates the aforementioned instruments and circuits into a closed-loop radar system to assess collective functionality. By employing delay lines causing different time delays, the paper observes the internal delays and beat frequency variation trends under various experimental conditions to meet on-site measurement requirements for preliminary experiments. Additionally, principles and formulas for measuring target distance, speed, and arrival angle using frequency-modulated continuous wave radar are simulated through programming, establishing a comprehensive process for interpreting raw data
Relevant Research on the Integration of Information Technologies into English Teaching Behavior, CBAM and TPACK from Middle School English Teachers
No full textThis study investigates the current status of IT integration into English teaching behaviors among middle school teachers. It compares various factors such as teachers' backgrounds, school environments, concerns about IT integration, and actual teaching behaviors. The aim is to understand teachers' attitudes and practices regarding IT integration, serving as a reference for future implementation strategies.
The study involved 393 middle school English teachers and utilized scales such as the "Information Integrating English Teaching Behavior Scale" and "Integrating Technology into English Teaching Scale." Statistical analyses included descriptive statistics, t-tests, and multiple regressions.
Key findings include:
Projectors and media from publishers are the most commonly used by teachers, especially for teaching culture and reading. Male teachers guide students more in using technology, with higher levels of TPACK, but many show limited involvement in IT integration. High school English teachers demonstrate significant involvement in counseling and sharing related to IT integration, with strong support from peers. Teachers who have participated in relevant training show significantly higher levels of information literacy and TPACK, indicating enhanced ability to apply IT in teaching. Significant correlations exist between the overall school environment, concerns about IT integration, and actual teaching behaviors. In summary, this study provides valuable insights into middle school English teachers' attitudes and practices regarding IT integration, emphasizing the importance of training and supportive school environments
A Case Study on Organization Innovation Development of an Excellent Teaching Team
No full textAbstract
This study explores the organizational innovation development in excellent teaching team through case study. It examines individual and organizational creativity among teachers, organizational innovation, and practical aspects of principal's innovative leadership. The study investigates strategies for developing excellent teaching programs and validates creativity and behaviors of teachers and principals against relevant theories. Main findings summarize factors shaping school innovation, providing valuable insights.
1. Innovative Strategies for excellent Teaching Programs:
The school embraces innovation, rooted in tribal culture, and fosters creativity in children's play. It pioneers tribal literacy courses using the RATIONAL teaching model. It promotes a culture of teamwork, risk-taking, and open flow, supported by ample resources such as funds, external teaching collaboration, and suitable working hours.
2. Teachers' Personal Creativity and Innovative Performance:
Personal intrinsic motivation leads to a strong belief in self-transcendence. Enthusiasm arises from work aligning with skills and interests, fostering creativity, challenge, and a sense of achievement. The classroom-based model emphasizes teacher autonomy in curriculum decisions.
3. Principal's Creative and Innovative Leadership Behavior:
Educational innovation driven by the goal of "enhancing children's learning" through curriculum and quality improvements. Adherence to educational principles, prioritizing student learning, and organizational interests with a transcendent spirit, guided by the wisdom of " immutable and everlasting Tao." Utilization of innovative management skills, offering constructive feedback, and playing the role of a transformative superhero in the shadows. Leadership artistry demonstrated by not hurriedly providing solutions, recognizing "reflection and correction" as crucial elements in innovation development.
4. Factors Detrimental to School Organizational Innovation:
Externally, excessive media reporting leads to parental misunderstandings. Internally, constraints such as limited school space hinder meeting teachers' relaxation needs. The varying pace of innovation among team members affects the social-emotional atmosphere in the workplace
Surface-electronic Studies of the Nanostructured SnOx/SnO2 Thin Film Decorated by NiO Nanoparticles (NPs) for CO2 Photoconversion
No full textThe investigation of surface electronic and optical features on the nanostructured SnOx/SnO2 thin film decorated with NiO nanoparticles (NPs) is carried out both experimentally and computationally. It is found that the thickness-dependent plays an important role in the CO2 photoconversion into the solar fuels. Varying thickness of the nanostructured surface provides a distinguish electronic and optical features, i.e., control-able band gap energy, band edged position associated to redox potential of CH4, inter-band transition of the electron that support the CO2 photo conversion process.
In this research the surface modification into nanostructured SnOx/SnO2 thin film successfully drives the selectivity into CH4 without any minor solar fuels. The gas production rate of CH4 is increased with increased thickness of nanostructured SnOx/SnO2 thin film. However, a reverse trend is observed, and it is suggested due to (i) the weakened quantum confinement effect, (ii) higher diffusion path length for the CO2 molecules to react with the adsorption sites at higher thickness.
The utilization of NiO-NPs co-catalyst is proven to enhance the gas production rate of CH4. This is in line with the DFT-D2 calculations which indicate the improvement of CO2 adsorption within NiO-NPs decorations. These predictions even over different binding configuration sites support the claim of the rising gas production rate for CH4 upon the NiO-NPs decorations. Moreover, the decorations also possess a possible charge transfer forming the bent \ue3CO\ue3_2^(\uce\ub4.-) as a result of strong interaction toward the surface atom of the adsorbent photocatalyst materials.
Upon the NiO-NPs decorations, a decreasing gas production rates of CH4 is also observed. The presence of defective SnOx is proposed to be a contributing factor in the plausible mechanism that regulates electronic carriers, which, in turn, governs the reduced gas production rate of CH4 on this decorated system. The detailed result is discussed in this research
The Effect of Different Compensations for The Same Servie Failure by The Same Food Delivery Platforms
No full textWith the surge in internet technology, the delivery platform market faces growing competition. Increasingly, users opt for mobile orders to save time. However, as delivery service usage grows, so do service errors. This study examines from a psychological perspective how compensation affects consumers' reactions and behaviors following service failures.
Using a 2x2 factorial design, it explores the effects of process and outcome errors, and feelings of relative deprivation on consumer psychology, focusing on how compensation strategies impact perceived fairness, relative deprivation, and negative emotions, and their subsequent effect on consumer behavior.
Findings indicate that consumers' perceptions of fairness and feelings of relative deprivation significantly influence negative emotions, especially when they perceive compensation as unfair or feel more deprived than others. The study suggests that businesses should consider consumers' fairness perceptions and manage negative emotions effectively to enhance brand reputation and encourage repeat purchases
The Evaluation of Recreational Carrying Capacity in Intertidal Zones of Xiao Liuqiu
No full textIn recent years, there has been a sharp increase in tourism to Xiao Liuqiu, bringing tourism benefits but damaging the local intertidal zone ecology, affecting visitor experiences, and impacting industry sustainability. In order to effectively limit the number of people in the intertidal zone for recreation while providing maximum ecological education opportunities, this study used five intertidal zones in Xiao Liuqiu's Natural and Cultural Ecology Scenic Areas as the research area to assess recreational carrying capacity.
This study reviewed relevant literature on recreational carrying capacity in domestic and foreign marine areas, adjusting modern mainstream assessment methods for the first time to apply them to intertidal zones in Xiao Liuqiu. The study mainly focused on assessing effective carrying capacity and social carrying capacity, supplemented by estimated results of facility carrying capacity for a three-way comparative discussion, ultimately estimating an appropriate carrying capacity value. (1) The assessment of effective carrying capacity used the method proposed by Cifuentes (1992), integrating spatial, social, ecological, and management factors through formula design for assessment. Although this method is commonly used internationally for studies on recreational carrying capacity, this study is the first to fully apply it to Taiwan and specifically to intertidal zone recreational activities. Thus, the study adjusted the modification factors used through expert meetings to better fit the current situation of the intertidal zones in Xiao Liuqiu. (2) This study assessed social carrying capacity through questionnaire surveys, simulating key questions on crowding levels through visual assessment methods, aiming to incorporate tourists' recreational experiences and feelings, and subsequently establishing regression equations to estimate social carrying capacity results. (3) This study conducted on-site inventories to estimate facility carrying capacity, calculating the maximum number of people parking spaces can accommodate, combined with the number of visitors during peak hours to understand the supply-demand relationship as an auxiliary reference for estimating recreational carrying capacity.
This study comprehensively evaluated the above three types of carrying capacity results and proposed optimal recreational carrying capacity recommendations, presented in the form of instantaneous carrying capacity, with the results being: Shanfu 306 people, Yu Cheng Wei 208 people, Duzaiping 201 people, Geban Bay 303 people, Lobster Cave 19 people. However, this is only based on the evaluation results of the research method and can be used as a reference basis for carrying capacity planning, but further negotiation with stakeholders is necessary to adjust according to social demand. Additionally, to make the assessment results closer to the actual situation, it is recommended to conduct regular assessments of carrying capacity for rolling adjustments in the future.
The evaluation methods and the application results of this study will be of reference value, but there is also room for further improvement. Therefore, this study also discusses research limitations and future research topics from a methodological perspective, compares them with relevant research and results on intertidal zones in Xiao Liuqiu, and suggests future research directions and considerations. Furthermore, based on the management issues noted in this study and the improvements suggested by visitors in the questionnaire, improvement suggestions for managing intertidal zones in Xiao Liuqiu are proposed
Investigating Behavior Intentions of Post COVID-19 Video Conferencing: The Case Study of School Staff in Kaohsiung City
No full text\ue3\ue3Since December 2019, COVID-19 has been ravaging the world, sparing no nation regardless of its strength or location. With the outbreak of the Omicron variant in May 2021, the Taiwanese government and schools have resorted to online video conferencing as a means of enforcing social distancing and preventing the further spread of the virus during meetings and teaching activities.
\ue3\ue3This period has led many organizations and school faculty members to developing skills and making a practice of using online video conferencing. However, after the COVID-19 pandemic has come to an end, it seems that many institutions or schools choose not to continue using video conferencing. Therefore, this study aims for exploring the factors for behavioral intentions towards the use of video conferencing in the post-pandemic era based on Ajzen's Theory of Planned Behavior, wondering how non-verbal communication is related to behaviors mentioned before.
\ue3\ue3Through focus group interviews, this study has interviewed the sum of 12 faculties from two elementary schools each in the former Kaohsiung City and former Kaohsiung County. Through the interview, it was discovered that there are several situations that affect the participants. If the organizers did not enforce the use of online video conferencing, participants who maintained an open attitude towards using such systems, and who considered external distance and internal information capabilities as positive resources, would be more likely to continue using video conferencing as a means of conducting meetings. It is hoped that this research can serve as a basis for determining whether government agencies or schools should continue to hold online video conferences in the future, streamlining process and enhancing administrative efficiency
Integration of Multi-section Eletroabsorption modulator and Semiconductor optical amplifier for dispersion compensation in long-distance optical fiber transmission
No full textAgainst the backdrop of rapid growth in fiber optic communications, high-speed, high-capacity communication has become increasingly crucial. In long-distance optical fiber transmission, signals are loaded onto light through various data modulation techniques. However, distortion issues arise during transmission due to effects such as dispersion and waveform distortion caused by losses. To address these challenges, many optoelectronic components have emerged. Among them, the integration of Electro-absorption Modulators (EAMs) with Semiconductor Optical Amplifiers (SOAs) is seen as a solution with significant potential. EAM/SOA integration combines the advantages of high speed, high modulation efficiency, amplification characteristics, and integration.
This study utilizes Quantum Well Intermixing (QWI) technology to integrate these two components, achieving overlap in operating bands. EAM/SOA can be driven by voltage and current, complementing their saturation characteristics for signal processing against waveform distortion and frequency disturbances, thereby enhancing the quality of long-distance signal transmission. Furthermore, by integrating EAM and SOA into a multi-section structure and introducing High Impedance Transmission Lines (HITL), the bandwidth limitations of the components are improved, and impedance matching of the component characteristics is enhanced. Distributed optical absorption and amplification increase the signal-to-noise ratio, improving transmission distance. Therefore, this integration and structural design are significant for signal processing and quality enhancement in optical communication systems.
In this work, we examine the characteristics of the components using Non-Return to Zero (NRZ), Pulse Amplitude Modulation 4 (PAM4), and Orthogonal Frequency-Division Multiplexing (OFDM) systems. By applying different levels of current to the SOA, we found that both the EAM and SOA reached saturation states, resulting in improved eye diagrams due to signal compensation, achieving 50Gbps signal transmission over 10km of single-mode optical fiber. To increase spectral efficiency, we employed OFDM technology, modulating voltage within the linear region and varying the current size with fixed output power over a bandwidth of 10.5GHz. Through the saturation effects of EAM and SOA, frequency disturbances and waveform distortions can be compensated, enabling signal transmission over 100km with a bandwidth of 10.5GHz, achieving a data rate of 25.3Gb/s in experimental settings