bluuebunny/crossref_metadata_2025_split huggingface dataset:
An Algorithm for a Space-Vector Pulse Width Modulation with a Hybrid Switching Sequence for a Three-Level Neutral Point Clamped Voltage Source Inverter
Authors: A. N. Shishkov, V. K. Le M. M. Dudkin, 
Published: June 2024

This paper proposes a new algorithm for a space-vector pulse width modulation (SVPWM) with a hybrid switching sequence (SS) designed to control a three-level (3L) neutral point clamped (NPC) voltage source inverter (VSI). Based on the advantages of five-stage and seven-stage SS, we designed a hybrid SS to improve four key parameters in the system: inverter output current quality, neutral point (NP) and common-mode (CM) voltage levels, and switching losses of power switches. The proposed algorithm flexibly regulates meeting the four criteria depending on the system operating conditions by changing the regulation coefficient. The paper obtained an approximate dependence to determine the optimal regulation coefficient for any values of the inverter modulation coefficient when operating jointly with an active-inductive load. The effectiveness of the proposed algorithm is confirmed by computer simulation in the MatLab+Simulink environment, as well as the results of experimental studies. The paper presents the experimental dependences of static state spaces, including the distortion coefficient of higher current harmonics at the inverter output, the maximum error of the NP voltage, the number of switching pairs of power switches, and the pulse duty factor of CM voltage, depending on the inverter modulation coefficient and the regulation coefficient of the hybrid SS. The results showed that in the algorithm for a SVPWM with a hybrid SS, the number of switchings of power switches is reduced by an average of 13.5 % while maintaining the NP voltage balance and the quality of the curve at the inverter output at an acceptable level, close to a seven-stage SS (the deviations do not exceed 0.5 % and 0.2 %, respectively). The average CM voltage coefficient decreased by no more than 4.5 %. The indicators improve the energy saving, the weight-size parameters, and the operational reliability of the 3L NPC VSI. The application area of the algorithm is much wider and includes the control of power switches of active front ends, grid converters for electricity storage systems, active power filters, and power conditioners.
DOI: https://doi.org/10.52783/pst.237
A Comparison between the Effectiveness of computerized Cognitive Rehabilitation Training and transcranial Direct Current Stimulation on Dialysis Patients’ Executive Functions
Authors: Firouzan Fatemeh , Sadeghi-Firoozabadi Vahid , Nejati Vahid , Fathabadi Jalil , Firouzan Ahmad 
Published: June 2024

Purpose Executive function impairments are among the most common dialysis side effects. The present study aims to compare the efficiency of transcranial Direct Current Stimulation (tDCS) with computerized Cognitive Rehabilitation Training (cCRT) on dialysis patients’ executive functions. Research method The present study, a quasi-experimental effort, adopted a pre-test/post-test method that included a control (sham) group. Design The study sample consisted of 30 participants, selected through the convenience sampling method, and categorized into three groups of cCRT, tDCS, and sham participants. The cCRT participants were asked to complete 8 tasks in Captain’s Log MindPower Builder software. The tDCS participants were treated with a 0.06 mA/cm2 current with the anodal electrode on F3 and the cathodal electrode on Fp2. For the sham participants, the electrodes were put on the same regions but there was no current stimulation. The treatment lasted for 10 sessions carried out every other day. Results The results of MANCOVA showed no significant difference between the sham group and the cCRT group in any of the executive function items. . However, between the sham group and the tDCS group was detected a significant difference in spatial working memory (p < 0.05) and a marginally significant in cognitive flexibility (p = 0.091). No significant difference was reported between cCRT and tDCS groups in any item. Conclusion According to the findings of the study, given the efficacy of tDCS on spatial working memory and cognitive flexibility for dialysis patients, it can be used to improve these skills.
Analysis of the Role of Hong Kong's Key Industries During the Pandemic of COVID-19
Authors: Chen HoiSum 
Published: June 2024

This study investigates the variables that affect and encourage inbound travel to Hong Kong using data from 2019 to 2020. Five important regional source markets for tourism in Hong Kong have been chosen, namely Singapore, Malaysia, Philippines, Japan, and South Korea. Based on the research results, the COVID-19 pandemic had a major destructive effect on Hong Kong's tourism sectors while significantly impact the quantity of inbound tourists due to government response to COVID-19 infection case. The quantity of inbound tourists to Hong Kong is significantly impacted by the government's actions based on the COVID-19 infection cases. Additionally, existence of COVID-19 in the tourism source countries is often considered when defining Hong Kong's travel restrictions. According to the empirical findings, the demand for visitor arrivals was also lowered by the distance to Hong Kong and the expensive cost of travel there, while the expansion of tourism was facilitated by improved aviation services and potential for the tourism sector. These results demonstrate that for the city to be recognized as an attracting and cherished tourist destination, the tourism sector and the government must collaborate to restore after the pandemic. The complementary nature of pandemic control and tourist recovery is highlighted by this study. To establish a positive ripple effect, these operative and budgetary standards must demand the government to provide early recovery support to tourism sectors.
The Impact of COVID-19 on Different Human Systems and Related Research Progress
Authors: Zhou Chen 
Published: June 2024

The coronavirus, also known as SARS-COVID-19 was a global pandemic that created an enormous impact on the world. Some of which include the economy, isolation for long periods of time, and most importantly the health of the people. The COVID-19 has created long term effects on the central nervous system (CNS), respiratory system, and digestive system. The virus's major target is the respiratory system, with symptoms similar to a sinus infection, which causes serious respiratory disorders including pneumonia, ARDS, and sepsis, which can cause considerable damage to the body. Central nervous system damage may result in delirium, the three types of this are hyperactive, hypoactive, and mixed. In addition, some patients mainly present with digestive symptoms such as diarrhea, loss of appetite and so on. Currently, there are many ways to intervene and prevent the disease. This is achievable through following COVID-19 safety measures, so the disease won’t further spread. While there are still many challenges and shortages when it comes to COVID-19. Some of which include shortages with a weak healthcare system, research difficulties, healthcare equities, and vaccines. This paper mainly discusses the relationship between COVID-19 and different systemic diseases, and provides new ideas for finding effective prevention with different systems in the future.
Leadership Style and Social Behavior of Social Workers in China
Authors: Wu Liyue 
Published: June 2024

This study examined the influence of leadership style on the social behave of social workers across different districts and organizations in China. The empirical measurement involved the participation of social work stations and associations, which included the Social Workers Association and various district social work stations in Hunan. The study sample consisted of 488 individuals who were social work learners and professionals. These participants were picked from various districts and training sites, and they were required to undergo self-evaluation tests. Findings reveal that while social workers generally exhibit average levels of empathy, professionalism, ethical decision-making, collaboration, and resilience, significant variations exist based on ae and educational background. Older social workers demonstrate higher levels of these traits compared to younger counterparts. However, barriers such as burnout, limited resources, organizational constraints, and lack of recognition hinder leadership development and positive social behavior. The study seeks to enhance leadership development initiatives and foster positive social behavior in the field of social work in China through a holistic strategy.
Assessing the Impact of Crossfit Exercise - Based Fitness Activities to The Physical Fitness of Line Dancers
Authors: Shao Jie 
Published: June 2024

Experimental analysis and research were conducted on the practice and application effects of CrossFit training for line dance athletes at Chengdu University. The CrossFit training program lasted for six weeks, and the researcher collected data through observation and notes during the actual experiment. The specific experimental results showed that CrossFit training significantly improved the strength of the students. In terms of balance training, the pre-training group who did not undergo CrossFit training, had noticeably lower balance abilities compared to the post-training group. This indicated that CrossFit training is greatly beneficial for linedance athletes. Regarding flexibility, the post-training group, who underwent CrossFit training, exhibited noticeably higher flexibility compared to the pre-training group. In terms of speed, the post-training group's speed significantly increased after CrossFit training, suggesting that it greatly enhances the speed of linedance athletes. Based on these results, the paper specifically presented training plans and suggestions. The recommendations highlighted that each athlete's physical constitution and capabilities and responses. Therefore, the first step is to devise training plans. CrossFit training has proven to be highly effective in improving muscle strength, flexibility, and balance. Hence, the next step is the comprehensive application of CrossFit training, followed by focusing on flexibility and balance training, such as schedule at least one day of yoga or Pilates training per week; Strengthening speed and agility exercises, such as short-distance sprints and agility training at least twice a week. Pay attention to personalized training and establish a regular evaluation mechanism.
Analysis of the Communication Strategy of Fast Fashion Brand Uniqlo in Cross-Cultural Contexts
Authors: Xiao Aoxue 
Published: June 2024

With the globalization of culture and the improvement of economy, overseas sales of big brands have become a major destination. The international fast-paced, high-quality labels with location and mobility advantages have quickly entered the Chinese domestic market characterized by strong demand and demographic dividend, and soon have conquered a market place. Under the current cross-cultural context, whether the product message sent overseas can suit the culture, psychology and customs of the target country, has become a key factor in its determining business success. This article chooses UNIQLO as the main example, put its Chinese Localization strategy under the difference of Chinese and Japanese cultures. Base on the grasp of the status quo of China's fast fashion market, consumers' life attitudes and media habits under the background of economic and social development, uses the theoretical frameworks related to cultural differences to analyze the brand’s cross-cultural explanations of its own concept, the location of the communication Discourse, the choice of media and its communication effect to further promote the understanding of brands’ cross-culture communication and provide reference to fast fashion brands’ communication beyond the boundary.
Investigating the Teaching Reform of the "Smart Logistics and Big Data Processing" Course in the Context of Artificial Intelligence
Authors: Qin Xinghong , Li Hainan , Wen Yue 
Published: June 2024

This study explores the enhancement of the "Smart Logistics and Big Data Processing" course in the field of artificial intelligence. The aim is to cultivate skilled professionals who can effectively address upcoming challenges in the logistics sector. This study examines the restructuring of the "Smart Logistics and Big Data Processing" course in artificial intelligence to cultivate skilled professionals prepared to tackle forthcoming challenges in the logistics sector. The paragraph discusses the importance of preparation and training for educators and students, highlighting the necessity for teachers to master new technologies and innovative teaching methods, and for students to improve their technical skills by acquiring proficiency in new tools. The study concludes by assessing the fulfillment of research objectives, which include updating course content and establishing an evaluation mechanism. Through the modernization of course content, the implementation of innovative teaching strategies, and the provision of sufficient preparation and training for both students and educators, significant progress has been observed in practical teaching. This study provides significant insights and practical knowledge for educational reform in the areas of smart logistics and big data processing, thus making a positive contribution to forthcoming educational advancements.
La peinture en 1945 : un cri face à l’histoire
Authors: Debrocq Aliénor 
Published: June 2024

Au lendemain de la Seconde Guerre mondiale, l’art est traversé de doutes, à l’image de l’ensemble de la société. La question du « massacre de la peinture » se confond ainsi avec celle des massacres liés à la guerre, et de ce que l’on peut encore en dire ou non. Un sentiment généralisé de perte pèse ainsi sur les artistes européens et américains. Si certains revendiquent clairement l’héritage du traumatisme dans leurs œuvres – citons Olivier Debré ou Jean Fautrier –, d’autres laissent transparaître la violence de la guerre de façon moins évidente – les artistes expressionnistes américains et français comme Jackson Pollock et Georges Mathieu, ou encore les artistes du mouvement Cobra. Il ne s’agit donc plus d’une peinture d’Histoire mais d’une peinture « face à l’Histoire », qui ne cherche plus nécessairement à représenter mais plutôt à transmettre et crier un certain désespoir.
PEACE AND SECURITY, HEALTH AND CLIMATE CHANGE IN SUB-SAHARAN AFRICA
Authors: Chigudu Daniel 
Published: June 2024

Purpose: Sub-Saharan Africa (SSA) is a region that is most affected by both conflict and climate change, with the Sahel, Southern Africa, and East Africa impacted severely. Research has shown climate change is a ‘threat multiplier’ while low state capability and high poverty are core conflict drivers. However, climate change gradually contributes to political, socioeconomic and environmental insecurity and fragility. This study examines perspectives of peace, security and health during climate change in SSA and explores strategic options for the region.

Theoretical reference: This study is underpinned by the greenhouse effect, which is a theory of anthropogenic global warming (AGW) supported by the Intergovernmental Panel on Climate Change (IPCC).

Methods: This study was grounded in the postmodernist philosophy, and data was obtained using desktop research methodology. This involved reviewing academic studies and grey literature.
Results and conclusion: Conflict prevention measures should ensure that climate change adaptation strategies are effectively implemented because its consequences in the region are now visible. Climate change should not be framed merely as a threat to security but as a security issue, although its role as a threat multiplier must not be trivialised or denied. Some vector-borne diseases sensitive to climate change represent an express cause for health concern, calling for evidence-based solutions.

Implications of the research: Climate change has a multiplier effect on conflict and health concerns, which are less understood.

Originality/Value: Although climate change does not directly cause conflict and health challenges, this study adds to the policy debate and literature by focusing on the indirect effects of climate change on peace, security and health.
Construction of Genetic Linkage Map and QTL Analysis for Fiber Traits in Diploid Cotton (Gossypium arboreum x Gossypium herbaceum)
Authors: Badigannavar Ashok , Myers Gerald 
Published: June 2024

Diploid A genome cottons are grown for their natural fiber in drought prone areas of Asia. Although they possess inferior fiber qualities to cultivated Upland and Pima cotton, their value lies in their inherent resistance to pests and diseases. Molecular linkage maps provide essential tools for plant genetic research, facilitating quantitative trait locus (QTL) mapping, marker-assisted selection and map based cloning. In the present study, we used SSR, AFLP, and TRAP markers to construct a linkage map using 94 F2 diploid individuals derived from a cross between G. arboreum x G. herbaceum. A total of 606 polymorphic markers were used to construct 37 linkage groups covering a total of 1109cM with an average distance of 7.92cM between two loci. Discriminant analysis identified three markers each associated for petal color and seed fuzziness, and four markers for petal spot. For quantitative traits, a total of 19 QTL were identified for five fiber traits using composite interval mapping. The identified QTL’s such as qFL4-1, qFS4-2, qELO1-1 and qSI2-1 were found to be significantly linked to fiber length, strength, elongation and seed index, respectively. This work could lead to more such attempts in deploying markers onto the A genome, thus guiding QTL mapping in tetraploid cottons.
Growth Responses of an Interspecific Cotton Breeding Line and Its Parents to Controlled Drought Using an Automated Irrigation System
Authors: Sun Youping , Niu Genhua , Zhang Jinfa 
Published: June 2024

Cotton is an economically important crop with multiple uses as fiber, biofuel, food, and feed, and drought is one of the most limiting factors in cotton production. In this study, Gossypium hirsutum ‘Acala 1517-99’, G. barbadense ‘PHY 76 Pima’ and their cross-breeding line ‘Q1735-4’ were grown in a greenhouse to characterize their growth and physiological responses to four substrate volumetric water contents (VWC) of 15, 25, 35, and 45%. An automated irrigation system consisting of soil moisture sensors, datalogger, and a relay controller was used. The results from two tests consistently showed that as VWC decreased, leaf area, stem diameter, and total dry weight (DW) decreased linearly for PHY 76 Pima and Q1735-4, but quadratically for Acala 1517-99. However, the reduction in the growth parameters varied among genotypes. As VWC was decreased from 45% to 25%, Acala 1517-99, PHY 76 Pima, and Q1735-4 exhibited reduction in height by 39.2, 32.5, and 23.7%; in leaf area by 70.9, 65.8, and 34.7%; in stem diameter by 33.4, 28.1, and 22.1%; and in total DW by 59.2, 55.6, and 15.1%, respectively. The interspecific cross-breeding line consistently displayed better drought tolerance than its parents. When VWC was further decreased to 15%, the interspecific cross-breeding line still had the lowest reduction in reproductive growth as measured by the total dry fruit weight; but its vegetative growth parameters such as plant height, leaf area, stem diameter, and total DW were similar to Acala 1517-99 and lower than PHY 76 Pima.
Second Stage Mote System Particulate Emission Factors for Cotton Gins: Particle Size Distribution Characteristics
Authors: Whitelock Derek , Buser Michael , Boykin Clif , Holt Gregory 
Published: June 2024

This report is part of a project to characterize cotton gin emissions from the standpoint of total particulate stack sampling and particle size analyses. In 2006 and again in 2013, the United States (U.S.) Environmental Protection Agency (EPA) published a more stringent National Ambient Air Quality Standard for particulate matter with nominal diameter less than or equal to 2.5 µm (PM2.5). This created an urgent need to collect additional cotton gin emissions data to address current regulatory issues, because EPA AP-42 cotton gin PM2.5 emission factors were limited. In addition, EPA AP-42 included combined 1st and 2nd stage mote system PM10 (particulate matter with nominal diameter less than or equal to 10 µm) and total particulate emission factors and not individual mote system emission factors. The objective of this study was to characterize particulate emissions for 2nd stage mote systems from cotton gins across the cotton belt based on particle size distribution analysis of total particulate samples from EPA-approved stack sampling methods. Average measured PM2.5, PM6, and PM10 emission factors based on the mass and particle size analyses of EPA Method 17 total particulate filter and wash samples from five gins (15 total test runs) were 0.00030 kg/227-kg bale (0.00067 lb/500-lb bale), 0.0024 kg/bale (0.0054 lb/bale), and 0.0039 kg/bale (0.0087 lb/bale), respectively. The 2nd stage mote system particle size distributions were characterized by an average mass median diameter of 16.1 µm (aerodynamic equivalent diameter). Based on system average emission factors, the ratio of PM2.5 to total particulate was 2.87%, PM6 to total particulate was 23.0%, and PM10 to total particulate was 23.0%.
Combined Mote System Total Particulate Emission Factors and Rates for Cotton Gins
Authors: Buser Michael , Whitelock Derek , Boykin Clif , Holt Gregory 
Published: June 2024

This report is part of a project to characterize cotton gin emissions from the standpoint of stack sampling. The impetus behind this project was the urgent need to collect additional cotton gin emissions data to address current regulatory issues. A key component of this study was focused on Environmental Protection Agency (EPA) total particulate emission factors. EPA AP-42 emission factors are generally assigned a rating, from A (Excellent) to E (Poor), to assess the quality of the data being referenced. Current EPA total particulate emission factor ratings for cotton gins are extremely low. Cotton gin data received these low ratings because the data were collected almost exclusively from a single geographical region. The objective of this study was to collect additional total particulate emission factor data for combined mote systems from cotton gins located in regions across the cotton belt using EPA-approved stack sampling methodology. The project plan included sampling seven cotton gins. Key factors for selecting specific cotton gins included: 1) facility location, 2) production capacity, 3) processing systems and 4) abatement technologies. Two gins with combined 1st and 2nd mote system exhausts were sampled. The average production rate during testing for the two gins was 33.7 bales/h. The average combined mote system total particulate emission factor based on two tests (six total test runs) was 0.146 kg/227-kg bale (0.321 lb/500-lb bale). This average total particulate emission factor was higher than that currently published in 1996 EPA AP-42, which was 0.13 kg/bale (0.28 lb/bale). The emission rate from test averages ranged from 3.45 to 6.45 kg/h (7.61-14.23 lb/h).