Results Of Research Research Articles

정신병동 실습을 통한 간호대학생의 자아성찰 경험

Objectives This study is to understand in-depth the nature of these experiences by confirming and describing the semantic structure of nursing students' introspection experiences. Methods This study is a qualitative study to reveal the subjective meaning of perceived and experienced contents in the psychiatric ward practice of nursing students using the Interpretive Phenomenological Analysis(IPA) re-search method. The subjects of this study were 10 third-year nursing students who experienced the practice of psychiatric wards at one university in Gyeongsangbuk-do. The data were collected from July 20 to September 20, 2019. Data were analyzed using IPA. Results As for the research results, 10 sub-themes and three sub-themes were derived. The first upper theme was ‘A wall of prejudice against psychiatry’, which was different from the existing practice, had prejudice against psychiatric patients, and even had distrust of oneself. The second upper theme is ‘Experience of criticism and un-derstanding’. The study participants experienced various and complex changes of emotions and thoughts while facing psychiatric patients for the first time, and named them ‘observation and understanding of patients’. The third upper theme is ‘Growth through psychiatric practice’. Participants in the study reported that they felt different through the process of self-reflection and that their relationship with patients changed positively. Conclusions The result suggests that, the essence of nursing college students' self-reflection experience not only helps students grow positively, but also provides the basis for the development of the curriculum for more sub-stantial practical education by presenting educational goals of psychiatric nursing. Therefore, efforts should be made to develop educational and program data that can promote self-reflection of nursing students based on the research results.

유아 놀이중심 교육과정을 반영한 기후·생태계 프로그램 효과성 연구

Objectives The purpose of this study is to investigate the effectiveness of a climate-ecosystem program reflect-ing an early childhood play-based curriculum on early childhood development (nature), environmental con-servation attitudes, ecological literacy, and early childhood playfulness. Methods The study participants are 5-year-old children from a kindergarten in Gyeonggi Province, with 13 in-dividuals in the experimental group and 15 individuals in the control group. SPSS 23.0 was used to determine the mean, standard deviation, and reliability coefficient of the study variables. The homogeneity test was conducted using the pre-test mean scores between groups, and the difference between the experimental and control groups was analyzed using the Mann-Whitney U test based on post-test mean scores. Pre-post differences between the experimental and comparison groups were analyzed using the Wilcoxon signed-rank test. Results The main research results are as follows: First, the simple difference between the pre-test and post-test mean scores of the study variables revealed improvement in the experimental group(from 0.13 to 1.02 points), while the comparison group showed both an increase(from 0.01 to 0.36 points) and a decrease(from -0.26 to -0.03 points). There was no statistically significant difference in pretest mean scores between the experimental and comparison groups, confirming homogeneity. The pre-post difference test of the experimental group showed statistically significant differences in early childhood development (nature) and environmental conservation atti-tudes and subscales (conservation attitude, recycling attitude, environmental pollution prevention attitude), eco-logical literacy and subscales (nature's rights, intention to support, resource protection, ecological sensitivity, eco-logical social environment, ecological development_reverse, nature governance_reverse, ecological crisis indif-ference), and early childhood playfulness and some subscales (physical spontaneity, social spontaneity, sense of humor). On the other hand, there were no statistically significant differences in the cognitive spontaneity and ex-pression of pleasure sub-domains of preschoolers' playfulness. The pre-post difference test for the comparison group found statistical significance only for ecological sensitivity, a sub-scale of ecological literacy, and physical spontaneity, a sub-scale of preschoolers' playfulness. Second, the factors that resulted in statistically significant differences in post-hoc mean scores between the experimental and comparison groups were environmental con-servation attitudes and their sub-scales, recycling attitudes, ecological literacy and its sub-scales, supportive in-tention, ecological sensitivity, nature dominance(reverse), and ecological crisis indifference. Conclusions The results of this study confirm the effectiveness of climate and ecosystem programs through play. As an extension of this study, we aim to propose collaborative activities with the local community through a living lab approach.

잠재성장모형(LGM)을 이용한 중학생의 자아개념이 창의성과 학습동기에 미치는 영향 종단분석

Objectives This study sought to find ways to improve policies through a longitudinal analysis of the impact of middle school students' self-concept on creativity and learning motivation using the latent growth model (LGM). Methods For this purpose, data on middle school students from the 2nd to 4th years (2019-2021, Panel 2) of the Jeonnam Education Longitudinal Study (JELS) were used for analysis, and self-concept was selected as an independent variable and creativity and learning motivation were selected as dependent variables in the potential growth model. This panel data (JELS) is a 10-year follow-up survey targeting 2,199 students (Panel 1) in 4th grade elementary school from 2018 and 2,549 students in 1st middle school (Panel 2) from 2019. Among the data (Panel 2) for a total of 75 schools, including 58 general middle school schools and 13 innovative schools, starting in 2019, 1,625 students, excluding missing values, were analyzed as final data. Results The main research results are as follows. First, the average self-concept, creativity, and learning motivation of middle school students was around 3 points for self-concept and creativity, and around 2 points for learning motivation, with learning motivation being the lowest. Second, there was a positive correlation between each variable. Third, middle school students' self-concept, creativity, and learning motivation showed a gradual decrease in change over time, and there were individual differences in the initial values of each variable. Fourth, self-concept and creativity showed group differences in initial values depending on gender, but the differences disappeared over time. It is predicted that there will be individual and group differences in learning motivation both at the initial value and over time. Fifth, the initial value and rate of change of self-concept only had a direct effect on the initial value and rate of change of creativity, and the initial value and rate of change of creativity only had a direct effect on the rate of change of learning motivation. Sixth, the initial value and rate of change of creativity had a positive mediating effect on the initial value and rate of change of self-concept and the initial value and rate of change of learning motivation. Learning motivation, which is essential for academic achievement, is highly correlated with and greatly influenced by self-concept and creativity, and the pattern of change shows a trajectory of gradual decline over time. Conclusions Therefore, it is believed that creativity and learning motivation will improve if self-concept is established and improved.

마음챙김이 초등학생의 불안에 미치는 영향

Objectives This study aim to explore the relationship between mindfulness and anxiety and the mediating effects of emotion regulation and worry on the relationship between mindfulness and anxiety. Methods The data were analyzed from 289 elementary school children in Seoul. Reliability analysis, technical sta-tistics, correlation analysis, and mediating effect analysis of each scale were conducted using the SPSS 18.0 and PROCESS Macro Model 4.2. Results Research results were as follows. First, the correlation between mindfulness and anxiety were significant, and regression analysis showed that mindfulness significantly predicted anxiety. Second, the mediating effect of emotion regulation and worry were significant in the relationship between mindfulness and anxiety. Conclusions This study was verified that children's mindfulness is a useful variable that directly affects anxiety re-duction and indirectly through emotional control and worry. It also provides useful information for making mindful-ness-based interventions. Considering the results that the indirect effect through worry was greater than the di-rect effect of mindfulness on anxiety, it suggests the need to include mindfulness activities on children's worry.

ESG 활동을 연계한 중학교 생태전환교육 프로그램 개발 연구

Objectives This study took ecological transition education as an integrated subject, analyzed the general and spe-cific documents of the 2015 revised and 2022 revised middle school curriculum, and attempted to develop a mid-dle school education program linked to ESG activities. Methods To this end, the planning and diagnosis phase was carried out from February to March 2023, the full-scale research project was carried out from April to October, and analysis and generalization of research re-sults were conducted from November to February of the following year. After receiving two rounds of expert ad-vice, we modified and supplemented the ecological transition education program linked to ESG activities and or-ganically linked it with the ESG activities of Earth Environment (E) practice activities, Social Realization (S) practice activities, and Win-Win Cooperation (G) practice activities. An ecological conversion education program was developed. Results The details of the research and development are (1) composition of the content system of ecological transformation education linked to ESG activities, (2) establishment of types of ecological transformation educa-tion linked to ESG activities, (3) nine programs of ecological transformation education linked to ESG activities, (4) The adequacy and effectiveness of developing a middle school ecological transition education program linking ESG activities was confirmed in five aspects, including the curriculum design content of ecological transition education linked to ESG activities and (5) the degree of ecological literacy cultivation. Conclusions Firstly, it contributed to a certain extent in cultivating ecological literacy (capacity to practice global environment, competency to implement social implementation, and competency to practice win-win coopera-tion). Secondly, it was helpful in strengthening ecological transition education linked to the school curriculum. Thirdly, it helped create a school culture that reduces carbon emissions. Fourthly, along with awareness of eco-logical transition education, the practical capabilities of teachers and students were improved.

Determinants of financial statement fraud: the perspective of pentagon fraud theory (evidence on Islamic banking companies in Indonesia)

Purpose The purpose of this study was to determine the determinants of financial statement fraud: the perspective of pentagon fraud theory. Design/methodology/approach This study used quantitative methods with an explanatory research design by applying secondary data on Islamic banking companies listed on the Indonesia Stock Exchange (IDX). Findings External pressure affects financial statement fraud, ineffective monitoring affects financial statement fraud, external auditor quality affects financial statement fraud, change in auditor affects financial statement fraud, frequent number of CEO’s picture affects financial statement fraud, external pressure affects firm size, ineffective monitoring affects firm size, external auditor quality affects firm size, change in auditor affects firm size, frequent number of CEO’s picture affects firm size, firm size affects financial statement fraud, firm size mediates the relationship between external pressure on financial statement fraud, firm size mediates the relationship between ineffective monitoring on financial statement fraud, firm size mediates the relationship between external auditor quality and financial statement fraud, firm size mediates the relationship between change in auditor and financial statement fraud, firm size mediates the relationship between frequent number of CEO’s picture and financial statement fraud. Research limitations/implications The limitations of this research were found during the research process and can be used as input for further research and related parties in conducting the research to obtain better research results. The limitations of this study are as follows: this study only focused on Islamic banking, so it cannot be generalized to other sectors. Besides, this study only tested five independent variables, one dependent variable and one mediating variable. Practical implications For external auditors, financial statement fraud by management might be caused by many factors and is a social as well as an economic problem that must be addressed immediately. Therefore, in carrying out the duties and roles as an external auditor, they must have an attitude of independence (not taking sides) in the mental attitude that must be maintained by the auditor related to the assignment. Auditors must have sufficient technical expertise and training as auditors. In carrying out the audit, the auditor should use their professional skills in responding carefully and thoroughly. Moreover, in carrying out audit work, the auditor must have a plan, must know adequate internal control and obtain sufficiently competent audit evidence. Originality/value To the best of the authors’ knowledge, very few studies in Indonesia have applied the Beneish model. There is only one study that implemented the Beneish model, and the study examined only a few companies listed on the IDX. The findings of the present study have important implications not only for banks but also for users of financial statement accounts in Indonesia, especially for investors, auditors, regulators, taxation and other state authorities.

ДОСЛІДЖЕННЯ КОНТЕКСТНО-ЧУТЛИВОГО АЛГОРИТМУ МОНІТОРИНГУ КІБЕРБЕЗПЕКИ НА ОСНОВІ РЕКУРЕНТНИХ НЕЙРОННИХ МЕРЕЖ

The most common problems faced by modern information and communication systems (ICS) in the context of combating cyber threats were examined in the paper. The importance of ensuring the reliable operation of ICS, and protecting their users' private data from unauthorized interception or destruction was emphasized. The main principles of effective protection of ICS systems against possible interference in their work were defined. The classification of cyber threats and their impact on the functioning of information systems was presented. Features of the use of modern information technologies were determined, such as machine learning (ML), and recurrent neural networks (RNN) for increasing the effectiveness of detecting and preventing such threats, speeding up the process of calculating large volumes of information about various aspects of the work of information and communication systems. The parameters of the analysis of ICS behavior, which indicate the presence of problems in cyber security, were studied. The features and advantages of deploying RNN in ICS were analyzed, which makes it possible to simplify the tasks of cyber defense. A modified context-sensitive algorithm for cyber security monitoring (CCM-RNN) was proposed, which is based on RNN and allows taking into account the dynamics of system changes in the established context, for example, the type or volume of traffic from users, etc. The method of selecting the most effective parameters and properties of ICS for detecting cyber threats was improved. The results of the study of the effectiveness of the use of the modified CCM-RNN algorithm demonstrated its broad capabilities for fast and accurate detection of anomalies in the operation of ICs that may threaten their cyber security. By changing the number of properties of the CCM-RNN algorithm, which correspond to the characteristics of various aspects of the IC, it is possible to achieve the maximum accuracy of cyber threat detection. The modified algorithm also allows for the reduction of the duration of calculations during analysis. Based on the research results, a conclusion was made about the feasibility of using the proposed modified CCM-RNN algorithm for the ability to detect cyber security threats in ICS by flexibly adjusting the number and type of learning parameters of neural networks. In this way, the accuracy and duration of calculations were optimized, as well as the peculiarities and contexts of information and communication systems were taken into account.

Geometric accuracy evaluation and analysis of ZY-1 02E IRS thermal infrared image data using GCP extraction based on phase correlation matching method

Abstract. The Ziyuan-1 (ZY-1) 02E launched on December 26, 2021 is equipped with a thermal infrared sensor (IRS), which has a ground resolution of better than 16m and a width priority of 115km, balancing the advantages of high resolution and large wide observation. The geometric performance of image data is the premise of remote sensing application, and the difficulty in evaluating the geometric performance of thermal infrared image data lies in the extraction of well-distributed, reliable and accurate GCPs. To extract GCP from high-precision reference images, it is necessary to overcome the feature differences between images caused by different spectral responses. This paper adopts a phase correlation matching method based on frequency domain to realize the fine registration of the data obtained by the emission thermal spectral band with the data from the reflectance spectral band, which can not only solve the GCP extraction of conventional thermal infrared images collected during the day, but also obtain satisfactory GCP data from thermal infrared data acquired at night. In order to test the GCP method proposed in this paper, three typical areas are selected as the experimental areas, including Yiyang City in Hunan, Nagqu City in Xizang and Hami City in Xinjiang, and the internal geometric accuracy and absolute geolocation accuracy of the thermal infrared data spanning one year are evaluated and analyzed by using the reference data composed of the DOM with an accuracy of 2m and the DEM with an accuracy of 10m. The research results indicate that the internal geometric accuracy of ZY-1 02E IRS satellite image data is better than 1.0 pixels, and the performance is satisfactory. However, its absolute geolocation accuracy needs to be continuously improved, especially there are systematic errors in the ascending data at night that require further research. Overall, it meets the design accuracy indicators of satellites and can meet the application requirements of thermal infrared remote sensing.

ASSESSMENT OF TREATMENT OUTCOMES AND SOME RISK FACTORS FOR MORTALITY OF COMMUNITY-ACQUIRED PNEUMONIA CAUSED BY STAPHYLOCOCCUS AUREUS IN THE ELDERLY POPULATION

Objectives: Community-acquired pneumonia is a notable contributor to mortality from infectious diseases on a worldwide scale, especially in the older population. Staphylococcus aureus is a prevalent infection known to cause severe pneumonia, often leading to a high incidence of complications and fatality. The study's objective was to assess the treatment outcomes and some factors associated with mortality rates of Staphylococcus aureus pneumonia in older people. Subjects and method: A cross-sectional study was conducted with 93 patients diagnosed with Staphylococcus aureus pneumonia admitted to Can Tho Central General Hospital from April 2021 to May 2023. Results: The research results showed clinical outcomes including 30-day all-cause death rates and pneumonia-related complications were slightly higher in the age group over 60 compared to those aged 60 and under, but the difference was not statistically significant. After performing multivariate analysis, it was found that heart failure (OR = 5.68, 95% CI: 1.01-32.1, p = 0.049) and central nervous system disease (OR = 5.26, 95% CI: 1.32-20.9, p = 0.018) were found to be independent factors that increased the mortality rate in individuals aged over 60. Conclusion: Clinical practitioners should evaluate and manage comorbidities regarding heart failure and central nervous system diseases during treatment of Staphylococcus aureus pneumonia due to its elevated fatality rate, especially in old patients.

Ways of forming the socio-psychological competence of sociology students in the course of training in higher education institutions

The existing uncertainties in modern social life cause personal and mental stress in the field of communication and joint activities of people. The subject of the research is socio-psychological competence of sociology students. The purpose of the work is to study the existing ways of forming this competence in the process of teaching students at higher education institutions. In turn, in order to achieve the original purpose, the authors formulated the following objectives: to identify the current problems connected to the social competence, to consider the existing psychological culture of sociology students, and to explore the contemporary approaches to the formation of professional competence of sociology students. In order to fulfill the purpose and the corresponding objectives, the authors studied scientific articles written by other Russian researchers as a methodological basis and also considered the information contained on the Internet. Due to its own specifics, the topic is used in the process of teaching students at higher education institutions. This topic has been relevant throughout history, and therefore it seems necessary to continue research in this field. According to the research results, the following conclusions were made. The existence of ways of forming the professional competence of a future specialist allows us to identify options for improving the socio-psychological competencies of sociology students in the process of training at higher education institutions. Due to diverse approaches, it is possible to determine the manifestation of personal psychological culture most accurately. Educational institutions at the same time act as one of the main factors that influence socialisation and formation of the psychological culture of a sociology student during their education.

Experimental study on the mechanical properties of FRP reinforced shotcrete lining of tunnel in extremely fractured surrounding rock

Tunnel excavation in the southwestern area of China encounters many difficulties caused by the large deformation of extremely fractured surrounding rock, which is the product of high plate tectonic stress. Improving the initial cracking strength and ductility of shotcrete layer is one of the most important means to reduce the frequency of support structure repair, which will improve tunnel construction efficiency and ensure personnel safety. In this case, this paper introduced fiber reinforced polymer (FRP) mesh to replace the steel mesh as reinforcement to optimize the support effect of shotcrete lining. Both large-scale model test and mechanical test are conducted to compare the reinforcement effect between FRP and steel mesh. Research results indicate that replacing steel mesh with FRP can increase the ultimate deformation capacity of tunnel lining by more than four times. The parametric analysis results indicate that increasing the lining thickness, the diameter of the FRP bars and the mesh density have different degrees of effect on improving the stiffness and strength of tunnel lining. The research results can provide reference for relevant projects.

On the aeroelastic bifurcation of a flexible panel subjected to cavity pressure and inviscid oblique shock

The aeroelasticity of a panel in the presence of a shock is a fundamental issue of great significance in the development of hypersonic vehicles. In practical engineering, cavity pressure emerges as a crucial factor that influences the nonlinear dynamical characteristics of the panel. This study focuses on the aeroelastic bifurcation of a flexible panel subjected to both cavity pressure and oblique shock. To this end, a computational method is devised, coupling a high-fidelity reduced-order model for unsteady aerodynamic loads with nonlinear structural equations. The solution is meticulously tracked by continuous calculations. The obtained results indicate that cavity pressure plays a pivotal role in determining the bifurcation and stability characteristics of the system. First, the system exhibits hysteresis behaviour in response to the ascending and descending dynamic pressures. The evolution of hysteresis behaviour originates from the phenomenon of cusp catastrophe. Second, variations in cavity pressure induce three types of bifurcation phenomena, exhibiting characteristics akin to supercritical Hopf bifurcation, subcritical Hopf bifurcation and saddle-node bifurcation of cycles. The system's response at the critical points of these bifurcations manifests as long-period asymptotic flutter or explosive flutter. Lastly, the evolution of the dynamical system among these three types of bifurcations is an important factor contributing to the discrepancies observed in certain research results. This study enhances the understanding of the nonlinear dynamical behaviour of panel aeroelasticity in complex practical environments and provides new explanations for the discrepancies observed in certain research results.

Penerapan Model Pembelajaran Cooperative Learning Tipe STAD (Student Team Achievement Division) untuk Meningkatkan Hasil Belajar Sejarah Peserta Didik di kelas X-5 di SMA Negeri 3 Medan

This research is classroom action research which aims to improve or improve history learning practices that have previously been carried out in the classroom through the application of the STAD (Student Team Achievement Division) type cooperative learning model to improve history learning outcomes. The subjects of this research were students in class X-5 at SMA Negeri 3 Medan with a total of 36 students. The indicators examined in this research are students' history learning outcomes. Based on the pre-cycle results, it is known that student learning completion reached 47.2% with 17 students completing the study with an average score of 61.94. After using the STAD cooperative learning model in cycle I, student learning completion reached 72.2% with 26 students completing and the average student score was 72.36. Based on the research results, it is known that student learning mastery has increased, but has not yet met the research success indicator, namely 75%, therefore a cycle II is needed. The results of research in cycle II showed that the class average reached 85.13 and the completion rate reached 83.3% with 30 students completing. The results of the second cycle of research have met the research success indicators, namely the score obtained is more than ? 80 with a learning completeness level reaching ? 75%. So it can be concluded that learning history using the Cooperative Learning STAD technique learning model can improve student history learning outcomes in class X-5 SMA Negeri 3 Medan.

Intelligent fault diagnosis and security early warning method of new power system based on system network situation

In the past few decades, China’s power demand has been increasing, and the power fiber plays a key role in ensuring the orderly dispatching of all links of the power system. The study used a wavelet decomposition and reconstruction method, which is a signal processing technique used to decompose complex optical power data into low-frequency and high-frequency signals with different frequency components. Through this decomposition, we can more clearly observe periodic fluctuations, trend changes, and noise components in optical power data. The study also examined different prediction models, including GRU, LSTM, ARMA), etc. The performance of these models in predicting optical power trends is then analyzed, taking into account their accuracy, stability, and computational efficiency. Finally, we carefully evaluated the GRU-ARMA combined prediction model and determined its superior performance in predicting optical power trends. The outcomes show that after adjusting the input data length of the gating cycle cell model and the relevant parameters of the autoregressive sliding mean model, the residual mean value was 0.0141. At the same time, the root mean square error calculated by the combined prediction model of the gating cycle unit-autoregressive moving mean model was 0.000618, which successfully improved the accuracy of predicting the optical power trend of power fiber. This research result provides an important reference for the aging state assessment of power fiber lines, and has an important practical application value for the maintenance of power fiber lines.

Kekeringan: Kelangkaan Pangan dan Kriminalitas di Lamongan, 1892-1940

This paper aims to explain the natural disaster of drought which influenced the decline in the economy and high crime in Lamongan. This paper uses historical research methods which include the stages of topic selection, heuristics, verification, interpretation, and historiography by paying attention to the focus of the study on urban issues, especially environmental and social history. Based on research results, it is known that the drought in Lamongan was caused by climate anomalies and erratic climate change. This drought has had various impacts, ranging from a lack of water supply for agriculture, scarcity of food to the rise of crime such as theft. The efforts to overcome drought were carried out by the colonial government with the cooperation of local residents, such as carrying out repairs to reservoirs, holding prayer events, and joint celebrations to ask God for help. Even though this drought disaster cannot be avoided, its impact can be minimized with mitigation efforts.

Study on the Interaction Propagation Mechanism of Inter-Cluster Fractures under Different Fracturing Sequences

Horizontal-well multi-cluster fracturing is one of the most important techniques for increasing the recovery rate in unconventional oil and gas reservoir development. However, under the influence of complex induced stress fields, the mechanism of interaction and propagation of fractures within each segment remains unclear. In this study, based on rock fracture criteria, combined with the boundary element displacement discontinuity method, a two-dimensional numerical simulation model of hydraulic fracturing crack propagation in a planar plane was established. Using this model, the interaction and propagation process of inter-cluster fractures under different fracturing sequences within horizontal well segments and the mechanism of induced stress field effects were analyzed. The influence mechanism of cluster spacing, fracture design length, and fracture internal pressure on the propagation morphology of inter-cluster fractures was also investigated. The research results indicate that, when using the alternating fracturing method, it is advisable to appropriately increase the cluster spacing to weaken the inhibitory effect of induced stress around the fractures created by prior fracturing on subsequent fracturing. Compared to the alternating fracturing method, the propagation morphology of fractures under the symmetrical fracturing method is more complex. At smaller cluster spacing, fractures created by prior fracturing are more susceptible to being captured by fractures from subsequent fracturing. The findings of this study provide reliable theoretical support for the optimization design of fracturing sequences and fracturing processes in horizontal well segments.

Retorika Gubernur Provinsi Kalimantan Timur dalam Menghadapi Jurnalis Terkait Berita Lubang Tambang

This study aims to determine and analyze the rhetoric of the Governor of East Kalimantan speaking in front of the mass media with the basis of Aristotle's theory as the researcher's standard. The theory used in this research is Aristotle's Rhetoric theory, in its development, rhetoric also includes the process of adjusting ideas to people and adjusting people to ideas through various kinds of messages. From the research results, it can be concluded that rhetoric plays an important role in public communication, especially in the context of political discourse through the mass media. The Governor of East Kalimantan, Isran Noor, with his straight-talking style, managed to use rhetoric effectively to influence public opinion, build relationships with the media, and inspire the public. In a situation that does not have an official communication team, the Governor is still able to manage his communication well and have a positive impact.

Dynamic behavior of rack vehicle-track(rack) coupled system on super-large-slope bridges

Rack railways are mainly used in mountainous areas, where inevitably, super-large-slope bridge structures appear. The dynamic behavior of the rack vehicle-track(rack) coupled system on super-large-slope bridge is rarely studied. To address this issue, a dynamic interaction model for rack vehicle-track(rack)-bridge system is established by considering the detailed dynamic meshing behavior of gear-rack and the dynamic contact behavior of the wheel-rail. On this basis, the gear-rack meshing force and the wheel-rail contact force of rack vehicles are studied under lines with varying slopes, and the dynamic behavior of the rack vehicle and the track-bridge system with a slope of 250‰ is further analyzed. Research results show that as the slope line increases, the gear and rack meshing force increases, but the wheel-rail vertical force decreases. Concurrently, the stability index of the vehicle changed considerably, and the stability of the vehicle decreases substantially. The maximum values of the vibration acceleration of the vehicle body and bridge are 0.4 m/s2 and 0.5 m/s2, respectively, meeting the requirements of the relevant standards for the vibration acceleration of the vehicle body and bridge. Further analysis reveals that the vibration of rack is mainly affected by the meshing force, and the vibration of the bridge is mainly affected by the wheel-rail force. These research results can offer a theoretical basis for the pre-design, post-operation, and maintenance of rack railways.

Acquisition of Acehnese Language Phonemes in 2-4 Year Old Children

The aims of this research are; 1) Describe the theory of acquiring the Acehnese language in children aged 2-4 years, 2) Describe the process of acquiring the Acehnese language in children aged 2-4 years. This research was conducted using a qualitative approach with a phenomenological type. The subjects of this research were 2 children aged 2-4 years, the first child from Gampong Meunasah Mampree, Syamtalira Aron District, North Aceh Regency, and the second child from Gampong Blang, Tanah Pasir District, North Aceh Regency. Data collection techniques use observation and question and answer. The data obtained was then compiled in the form of observation field notes and questions and answers for children aged 2-4 years which were then analyzed to determine the acquisition of Acehnese language phonemes used by children aged 2 years in their daily lives. Based on the research results, it can be concluded that the language acquisition of Muhammad Aksan Rafassya aged 3 years is very good. The research subjects had mastered vowel and consonant sounds. At the age of 2 years Aksan was able to own and master words in his surroundings. This is also strengthened by mastery of nouns, adjectives and verbs. Meanwhile, Hidayatul Azizi's language acquisition at the age of 2 years is not good because he is not yet very fluent in pronouncing consonant sounds. However, at the age of 2 years Hidayatul Azizi was able to pronounce vowel sounds well. The vowel sounds that Hidayatul Azizi already pronounces fluently are the words 'jeut', 'loen', and the word 'itek'.

Sistem Informasi Pembelajaran Taman Pendidikan Al-Qur’an di Yayasan Al-Muttaqien Jadid (TPQ)

This research aims to determine the TPA academic system currently running at Al-Muttaqien Jadid. This research is descriptive research using qualitative methods. Data collection was carried out by interviews, observation and documentation, as well as using literature studies from various sources related to the questions asked in the research. It was found that there was a problem with the TPA Academic system, including regarding student registration, class division and scheduling, which still uses the bookkeeping method, it is difficult to get information regarding student data, class data, teacher data and subject data. Apart from that, the process of class division and scheduling cannot be completed quickly due to difficulties in finding data, the number of students being placed in excess of the quota often occurs, so mistakes or mistakes often occur in recording students' grades. So that registration, payment and distribution data can be processed quickly and accurately, a web-based application is needed. By implementing this application, it can help academic processing in preparing payment reports and student registration so that the management of TKA-TPA in the data collection process makes coordination and coaching easier. From the research results, it can be concluded that registration, payment, class division and scheduling using the bookkeeping method requires quite a long time in processing data and storing data.