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Recently, shipborne radars are being developed into fully-digital Active Electronically Scanned Array (AESA) multifunctional radars (MFR) that are capable of electronic beam steering, simultaneously detecting and tracking multiple targets in a complex maritime environment, and performing electronic countermeasure functions in real-time. However, because the development process of a radar is expensive owing to its high complexity, using Simulated Signal Generator (SSG) that can emulate the function of an antenna proves effective in radar development. In this study, we propose a real-time implementation method for SSG capable of simulating maritime battlefield environments and targets using fully digital-based antenna simulation. We propose a CPUand FPGA-based real-time system architecture, fixed-point operation, real-time channel noise generation method, and real-time beamforming structure to generate modeling results that are presented. [ABSTRACT FROM AUTHOR]

Purpose: This study examined the impact of a virtual reality intervention program based on psychological needs on behavioral and psychological symptoms, apathy, and quality of life (QOL) in patients with dementia or mild cognitive impairment living in nursing facilities. Methods: This study is nonequivalent control group pretest-posttest design of quasi-experimental study. The study collected data from November 18, 2020 to July 24, 2021 from patients with dementia or mild cognitive impairment (30 in the experimental group and 30 in the control group) at three nursing facilities in G city using self-reporting and caregiver-informant reporting methods. The analysis employed the chi-square test, Fisher's exact test, paired t-test, independent t-test, Wilcoxon signed rank test, Mann-Whitney U, repeated measures ANOVA, GEE, using SPSS/WIN 27.0. Results: The severity of behavioral and psychological symptoms (Wald χ² = 2.68, p = .102) and the care burden of caregivers (Wald χ² = 1.72, p = .190) were not significant and was no significant time and group interaction effect (Wald χ² = 0.63, p = .426, Wald χ² = 0.52, p =. 471). The difference in apathy and QOL score were statistically significant for the group-time interaction (F = 43.65, p < .001; F = 4.35, p = .041). Conclusion: The virtual reality intervention program of this study shows a positive effect on the apathy reduction and QOL of patients with dementia or mild cognitive impairment residing in nursing facilities. [ABSTRACT FROM AUTHOR]

This study conducted an empirical analysis of SSE-listed companies to verify the effects of evaluation and disclosure of internal control systems on the agency costs management and controlling shareholders. Agency costs can affect the valuation of accounting information as asymmetry of information in the relationship between a company and its stakeholders, or induce financial costs as an adverse selection. If the firm's agency costs are reasonable, the valuation of the company can also move in a relatively positive direction. In this study, the evaluation information of the internal control system was analyzed through sales management ratio and equity ratio as substitute variables to analyze the relationship between management and agent costs of the controlling shareholders. In addition, independent control ratio, capital balance ratio, and company scale were used as control variables, as a result of the analysis, the evaluation information of internal control was found to be related to the agency costs of managers and governance structure. This study can be conducted to positive factors in evaluating the reliability and corporate value of accounting information according to the evaluation of internal control of SSE-listed companies and helps to understand the financial reporting environment. [ABSTRACT FROM AUTHOR]

Purpose: Peripheral nerve allograft can be an acceptable alternative, but it has not yet become clinically useful because of immune response to foreign tissue. With significant advances in the research and tissue engineering, various alternatives to nerve autograft including synthetic nerve conduit and decellularization have been used, but their therapeutic effects were not satisfactory. The purpose of this study was to confirm the effectiveness of cryopreservation of the allograft nerve as a useful nerve-graft substitute. Methods: A total of 39 Sprague-Dawley rats (recipient) and 13 Lewis rats (donor) weighing 200 g to 300 g were used in this study. Animals were randomly divided 3 groups and received ipsilateral sciatic nerve graft: autograft (group 1), allograft (group 2), and cryopreserved nerve allograft (group 3), Nerve regeneration was evaluated at sixteen weeks on the basis of the animal weight, ankle contracture angle, compound muscle action potential, isometric tetanic muscle force, wet muscle weight of the tibialis anterior muscle, and the histomorphometry. Results: Cryopreserved nerve allograft (group 3) showed superior motor recovery than allograft group (group 2), which was comparable to those of autograft (group 1). Conclusion: Pretreatment of nerve allograft using cryopreservation decreased rejection caused by immune response of the donor and improved motor nerve recovery. In clinical perspective, use of a pretreated nerve allograft can be an alternative to the autograft. [ABSTRACT FROM AUTHOR]

In order to survive the competition, companies are developing new knowledge, applying and communicating, and accumulating numerous knowledge management activities. Therefore, it is important to establish and operate an effective knowledge management system to introduce and utilize effective knowledge management. So, the purpose of this study is to confirm the relation between the learning orientation of the organization and the knowledge management which are the main results in the knowledge management. In other words, this study investigated how the knowledge management system of a company affects the learning orientation of the corporate members, so as to be a basis for establishing the direction of knowledge management in the future. This study synthesized theory and previous studies, developed hypotheses and research models, and conducted empirical analysis through questionnaire surveys. This study is analyzed that knowledge management system has a positive effect on learning growth will. In addition, it was confirmed that the knowledge management system has a statistically significant relationship with the intention of internal improvement. Therefore, for the successful operation and management of the support management system, maintenance of the system that can focus on the strategic and appropriate learning model of the organization and the role of the organization member is an important variable. The results of this study are expected to provide meaningful guidance not only in the practical field but also in the study of the organization 's knowledge management system. [ABSTRACT FROM AUTHOR]

Since the global financial crisis in 2008, countries around the world have emphasized the activation of entrepreneurship and entrepreneurship as essential strategies for survival. In the case of developed countries, the United States, the European Union and China actively promote entrepreneurship and entrepreneurship. In Korea, on the other hand, the importance of entrepreneurship is emphasized by stagnating growth of companies and strengthening their competitiveness through convergence within companies or companies. The purpose of this study is to investigate the relationship between entrepreneurship and learning orientation in order to enhance competitiveness of Korean companies and to be the basis of management strategy for growth of convergence companies based on this. For the progress of this study, the convergence companies were targeted and the hypothesis was verified through the questionnaire survey through the statistical program. The results of the study showed that Innovation influenced learning orientation. Second, Initiative was found to affect learning orientation. Finally, it is shown that risk sensitivity does not affect learning orientation. [ABSTRACT FROM AUTHOR]

The company strives constantly to prepare for the current crisis and uncertainty of the future and to strengthen its competitiveness. At times, it strives to strengthen its competitiveness through continuous innovation, as well as securing technological innovation and talented personnel. However, even if the company makes such a hard effort, the sustainable growth of the enterprise will not be guaranteed unless smooth communication and efforts among the internal resources are supported. The social responsibility of management and the attitude of labor-management relations are important factors for the smooth coordination of labor-management relations. Therefore, this study empirically analyzed the relationship between manager 's social responsibility, labor relations attitude and job performance. The results of this study showed that the social responsibility of managers affects job satisfaction and job commitment. In addition, managers' attitudes toward labor relations have an effect on job satisfaction and job commitment. Also, job satisfaction has a positive effect on job commitment. The result of this study can be used as a practical application data for establishing new labor - management relations among the managers of the enterprise in the future. [ABSTRACT FROM AUTHOR]

Objectives In this study, the authors evaluated the correlation between levels of serum lipid, homocysteine, and folate with volumes of hippocampus, amygdala, corpus callosum, and in patients with amnestic mild cognitive impairment (aMCI) or Alzheimer's disease (AD) type. Methods The study recruited patients who visited the dementia clinic of Haeundae Paik Hospital in Korea between March 2010 and June 2014. Among those, patients who had taken the neurocognitive test, brain magnetic resonance imaing, tests for serum lipid, homocysteine, folate, and apolipoprotein E (APOE) genotyping and diagnosed with aMCI or AD were included for analysis. Bilateral hippocampus, entorhinal cortex, amygdala and corpus callosum were selected for region of interest (ROI). The cross-sectional relationships between serum lipid, homocysteine, folate and ROI were assessed by partial correlation analysis and multiple linear regression analysis. Results In patients with aMCI, old age (> 80) and APOE ε4 carrier were associated with AD [odds ration (OR) : 12.80 ; 95% confidence interval (CI) : 2.25-72.98 and OR : 4.48 ; 95% CI : 1.58-12.67, respectively]. In patients with aMCI or AD, volumes and thickness of ROI were inversely correlated with levels of serum lipid and homocysteine. In multiple linear regression analyses, higher total cholesterol level was related to lower left, right hippocampus volume and left amygdala volume ; higher low-density lipoprotein cholesterol was related to lower right entorhinal cortex thickness ; higher homocysteine level was related to lower corpus callosum volume. Conclusions Higher serum lipid and homocysteine levels are associated with decreased volume of hippocampus, amygdala, corpus callosum and entorhinal cortex thickness in patients with aMCI or AD. These findings suggest that serum lipid and homocysteine levels are associated with AD as a modifiable risk factor. [ABSTRACT FROM AUTHOR]

The biggest change in modern society because we will transition to a ubiquitous environment. Changes in the environment has become a crucial instrument that finally opens the era of convergence management through integrating the various fields in their own business. The desire of consumers to new innovative products appears to be a constant thing companies are constantly trying to respond to these changes, there may not be a problem for the convergence of sustainability management company in the end. In this study, based on the convergence of corporate management need to be a fusion component of corporate management to examine whether any impact on the quality of innovation. Results showed that the fusion management components that affect both internal factors and external factors, core factors quality improvement. Internal factors detailed in the convergence management leadership, risk management factors showed a positive external factors affecting appeared to affect positively the knowledge-sharing factors, infrastructure factors. Finally, core factor is technology factors, educational learning factors showed a positive impact. This results suggest that be a big impact factors of competitiveness of enterprises through convergence management in the future and will serve as the strategic basis for the convergence of future corporate management. [ABSTRACT FROM AUTHOR]

This study try to analyze the relationship between the corporate culture type and performance about convergence corporate. In addition, we developed a model that fix this research to analyze the business culture and firms type in order to perform this study overall. In the daily operations of an organization's culture can be a source of corporate competitiveness, it may be classified as an important factor in the performance of the organization to promote. In other words, the organizational culture as well as be able to describe an individual's attitudes and behavior, microscopic, macroscopic analysis of organizational behavior can serve to connect conceptually each others and through this process can be seen as contributing to the achievement creation. Therefore, analyzed the influence of the relationship between corporate culture and performance form the basis of this study and research model was validated. Corporate culture in the form of the convergency enterprise found out the strong relationship with job satisfaction and organizational commitment in the research result. Finally, this research results are expected to be a useful guide as a basis for the creation and management of companies with a corporate culture in the near future convergence corporation. [ABSTRACT FROM AUTHOR]

Modern is the era of convergence. In the complex position of the company to survive in the rapid environmental changes it can not be a mandatory fusion rather than choice. Wind convergence also in the art can be said to castration. This phenomenon can be found in many real life. Most real-life contact with the service sector is no exception. Due to a number of banks and insurance combined Banca named fusion of French banking and insurance business are integrated. Even recently, the situation has been provided by Investment consulting, equity trading services within bank branches. In this study, based on the need for convergence of corporate businesses convergence factors examined through regression analysis on whether any impact on the financial aptitude. External environmental factors that make up the fusion research factors internal environmental factors, both core competencies were factors to affect financial performance. [ABSTRACT FROM AUTHOR]