At a time when the demand for drones is increasing, a plan to utilize drone images was sought for efficient promotion of cadastral resurvey. To achieve the purpose of this study, the technical and legal status of drone images was reviewed, and through this, the possibility of using it for cadastral resurvey was primarily reviewed. subsequently, an experiment was conducted targeting the project district to examine whether drone images were applied to boundary extraction, which is the primary process of cadastral resurvey. As a result of the experiment, it was found that boundary extraction from images is possible. However, in some cases, it is impossible due to field conditions or image quality. Therefore, it is necessary first to apply cases where boundary extraction is possible to cadastral resurvey and seek solutions for some impossible cases. In particular, the image quality problem may have problems with the current technology, but it will also have problems with the existing drone equipment. So, standard for drone calibration should also be established. Finally, the cadastral resurvey surveying procedure using drones was also presented.

Tulsi (Ocimum sanctum), commonly known as Holy Basil is a revered herb with a rich history in traditional medicine systems, particularly in Southeast Asia. For its medicinal properties, Tulsi has been regarded as an “Elixir of Life” and has been used to treat various ailments. However, the comprehensive investigation of Tulsi extracts and their potential pharmacological benefits, specifically in relation to antioxidant activity remains limited. Hence, the objective of this study was to evaluate the antioxidant activity of Tulsi leaf and stem extract using various screening methods. We investigate the antioxidant activity exhibited by the extract using three different methods involved the utilization of the total polyphenol content assay, the ferric reducing power assay and 2, 2-diphenyl-1-14 picrylhydrazyl (DPPH) assays. The results revealed that the Tulsi leaf extract (TLE) exhibited significantly higher antioxidant activity when compared to the Tulsi stem extract (TSE) in all the performed assays. The higher content of phenolics in TLE may have contributed to its superior antioxidant activity. The HPLC (high performance liquid chromatography) analysis of TLE revealed the presence of eugenol, active compound for several therapeutic properties. These findings provide an understanding of the bioactive compounds present in Tulsi extracts and their potential antioxidant benefits.

간 동적 조영검사에 사용하고 있는 VIBE 시퀀스의 고식적인 방법과 딥러닝 방법에 관한 선행된 연구가 부족하여 영상의 평가와 검사의 방향성 및 타당성을 제시하고자 한다. ACR 팬텀 실험은 30회 반복 실험하였고, 저 대조도 분해능 평가영역 에서 syngo.via View&Go를 이용하여 신호대잡음비와 대조대잡음비를 평가하였고, 공간분해능 평가영역에서 MATLAB 을 통해 신호강도의 높이와 반치폭으로 공간 분해능을 평가했다. 팬텀 실험을 기준으로 Matrix 352를 설정하여 30명의 환자 실험을 했다. 간 실질, 간 문맥, 내림 대동맥에서 대조대잡음비를 평가했고, 공간 분해능은 간 문맥, 내림 대동맥의 경계면을 평가했다. 결과 분석은 이원배치 분산 분석으로 진행하고, 사후 분석은 Duncan을 사용했다. 통계분석은 정량적 으로 p-value 0.05 미만으로 유의한 것으로 판단했다. 팬텀 실험의 신호대잡음비와 대조대잡음비 결과는 Matrix 416 이하에서 유의하였으며, 공간분해능 결과는 고식적인 방법 Matrix 352 이하, 딥러닝 방법 288 이하에서 평가할 수 없었 다. 환자 실험 결과는 신호대잡음비, 대조대잡음비, 공간분해능 모두 유의했다. 본 연구는 고식적인 방법보다 딥러닝 방법 이 영상은 더 향상되었고, 획득 시간은 평균 4초(22.4%)가 단축되었다. 딥러닝 방법에서 Matrix 352를 적용하였을 때 검사 시간의 감소로 재현성과 호흡에 의한 인공물 감소가 있었다. 이에 딥러닝 방법에서 Matrix size 적용의 방향성을 제시할 수 있었다.

The disposal of organic pollutants is one of the important research topics. Some of the studies in this field are based on the degradation of organic pollutants with a catalytic agent. The cobalt tetraoxide/peroxymonosulfate system is an important catalytic system used for the radical degradation of organic pollutants. To increase the catalytic efficiency of such reactions, graphitization of activated carbon used as a support solid and nitrogen doping to the carbon structure are commonly used methods. In this study, cobalt tetraoxide production, N-doping and graphitization were carried out in a single step by heat treatment of activated carbon doped with the phthlocyanine cobalt (II) complex. The catalytic performance of the catalyst/ peroxymonosulfate system was investigated by changing the pH, catalyst, and PMS concentration parameters on rhodamine B and 1,3,5 trichlorophenol, which were used as models. It was seen that the catalysts had 97% activity on rhodamine B in 16 min and 100% on 1,3,5 trichlorophenol in 6 min. It was observed that the catalysts continued to show high catalytic activity for five cycles in reusability studies and had a very low cobalt leaching rate. These results are in good agreement with previously published studies. In line with these results, the synthesized N-doped graphitic carbon/Co3O4 catalyst can be used as an effective catalyst for wastewater treatments.

In the multilateral trading systems under the WTO, the national security exception plays a crucial role in balancing trade liberalisation against the security interest of a sovereign nation. The proper use of the national security exception is of particular importance in the disputes with mixed political, diplomatic and military elements. The EU has recently accused China of breaching WTO obligations by taking restrictive trade measures against Lithuania, thereby affecting free trade between the EU and China. This paper argues that the allegation would be frustrated by the application of the WTO’s national security exception, as the dispute is rooted in Lithuania’s breach of its commitment to the One-China principle, which is crucial to China’s sovereignty and territorial integrity. Outside the WTO ruling system, a unilaterally imposed international sanction would be insufficient to alleviate the dispute between China and Lithuania and would lead to a deadlock in the multilateral trading system.

We present a novel method that can enhance the detection success rate of interstellar objects. Interstellarobjects are objects that are not gravitationally bound to our solar system and thus are believed to haveoriginated from other planetary systems. Since the nding of two interstellar objects, 1l/`Oumuamua in2017 and 2l/Borisov in 2019, much attention has been paid to nding new interstellar objects. In thispaper, we propose the use of Heliospheric Imagers (HIs) for the survey of interstellar objects. In particular,we show HI data taken from Solar TErrestrial RElation Observatory/Sun Earth Connection Coronal andHeliospheric Investigation and demonstrate their ability to detect `Oumuamua-like interstellar objects. HIs are designed to monitor and study space weather by observing the solar wind traveling throughinterplanetary space. HIs provide the day-side observations and thus it can dramatically enlarge theobservable sky range when combined with the traditional night-side observations. In this paper, we rstreview previous methods for detecting interstellar objects and demonstrate that HIs can be used for thesurvey of interstellar objects.

Technosignature, previously known as SETI(search for extraterrestrial intelligence), is the scientic evidence of past or present extraterrestrial civilizations. Since NRAO's Project Ozma was performed in 1960, most of the noticeable technosignature searches have been done by radio telescopes, hoping to find strong and narrow bandwidth signals that cannot be explained by known natural processes. Recently, the Breakthrough Listen project has opened a new opportunity for technosignature by utilizing both optical telescopes, radio telescopes, and next-generation radio telescope arrays. In this review, mainly based on NASA Technosignatures Workshop (2018), we review the current trends of technosignature surveys, as well as other possible methods for detecting technosignature. Also, we suggest what the Korean community could contribute the technosignature research, including the new SETI project with Korea VLBI Network (KVN).

Since the farside of the moon is a place to avoid arti cial radio frequency interference (RFI) created byhuman civilization, it is a most suitable place for searching technosignature, which are signs of technolog-ical civilization in the universe, in the radio band. The RFI is a factor that makes the study of searchingtechnosignature quite complicated because it is di cult to distinguish between technological signals pro-duced by human and extraterrestrial civilizations. In this paper, we review why the farside of the moon isthe best place to detect technosignature and also introduce radio observatories on the farside of the moonthat have been proposed in radio astronomy. The SETI (Search for Extraterrestrial Intelligence) projecton the farside of the moon is expected to be one of the main candidates for international collaborationresearch topics on lunar surface observatory.

"Are we alone in the universe?" is the fundamental question of mankind. To search for the life signaturesin the universe, there have been a lot of researches and space explorations, especially in our solar system. In this review paper, we introduce the de nition and characteristics of the \biosignature". The currentsituations and future plans for searching for biosignatures in our solar system are reviewed, especially atVenus, Mars, and Ocean Worlds such as Europa and Enceladus where life signatures are more likely toexist than in other places in the solar system. Finally, we discuss the opportunities and strategies for theKorean scienti c society to participate in searching for biosignatures in the solar system.

Since interstellar objects like 1I/`Oumuamua and 2I/Borisov originate from exoplanetary systems, evenif we do not visit the exoplanetary systems,yby, rendezvous, and sample return missions of interstellarobjects can provide clues to solve the mysteries of cosmic life phenomena such as the origin of exoplanetarysystems, galactic evolution, biosignatures (or even technosignatures), and panspermia. In this paper, wereview space missions for interstellar object exploration in the stage of mission design or concept studysuch as Project Lyra, Bridge, Comet Interceptors, and LightcraftTM. We also review space missions,OSIRIS-REx and NEA Scout, designed for Near Earth Asteroids(NEA) explorations, to investigate thecurrent state of basic technologies that can be extended to explore interstellar objects in a velocity of~ 6AU/year. One of the technologies that needs to be developed for interstellar object exploration is aspacecraft propulsion method such as solar sail, which can catch up with the fast speed of interstellarobjects. If this kind of propulsion becomes practical for space explorations, interstellar object explorationswill mark a new era and serve as a driving force to provide evidences of cosmic life.

More than 5,000 exoplanets have been detected nowadays. One of the key motivations of exoplanet detection is to understand what physical/chemical conditions of exoplanets are suitable for harboring extraterrestrial life. Such conditions are called \habitability," and most modern studies assume the existence of liquid water as its key factor. In this paper, we review the current status of exoplanet and habitability studies, as well as some future (habitable) exoplanet survey plans, mostly from National Academies of Sciences, Engineering, and Medicine (2018, 2021). Also, we suggest several research items that the Korean astronomy and space science community could contribute to habitability.

This study quantifies drivers and consequences of positive and negative electronic word-of-mouth (eWOM) engagement on social networking sites building upon social identity theory. Fitting a structural model using software smartPLS 4.0, the analysis compares two distinct groups of respondents. Though these groups seem to belong to the same in-group. Nevertheless, group members differ with respect to the drivers and consequences of their positive and negative eWOM engagement. As engagement is often used in the context of service-dominant logic, we reveal which non-monetary value co-creating and value-reducing consequences result from positive and negative eWOM engagement. This study highlights the impact of eWOM engagement on self-brand connection and self-brand incongruity and identifies commitment as a major driver. For international respondents negative eWOM does not automatically increase self-brand incongruity but low negative eWOM has a positive effect on the self-brand connection.

Promotion of brand-related sustainability initiatives (BSI) is a modern managerial issue, as BSI seems to impact not only sustainability but also consumer psychology toward a brand. In this regard, the author has extended self-congruity theory and suggested the concept of brand-sustainability-self-congruence (BSSC) as the image congruence of the triad comprising brand, BSI, and self-concept. Former surveys report predictive effects of BSSC on consumers’ brand evaluation, leading to increased brand equity (Kumagai, 2022, 2023).

The popularity of the Korean entertainment industry has been growing worldwide. Various forms of media, such as movies, TV series, music, radio and many more, have been used as a platform to launch and promote new products of many brands. For instance, Laneige – a Korean cosmetic company was successfully placed in the Korean drama – Descendants of the Sun. Previous studies have accounted for various factors in analysing product placement in movies, such as brand familiarity, brand fit, and movie genre. However, the effect of the emotional context of where the product is placed remains unclear. The purpose of the present research is to investigate whether the effectiveness of product placement is influenced by the emotions depicted in the scene, and whether the ethicality of the product matters.

Previous research has compared still images employing the actor’s perspective to those employing the observer’s perspective and found that the former increases service evaluations if the consumers are promotion-focused, whereas the latter increases service evaluations if the consumers are prevention-focused. The research compares three kinds of vlogs, i.e., vlogs employing the actor’s perspective, vlogs employing the observer’s perspective without the actor’s face, and vlogs employing the observer’s perspective with the actor’s face. The results show that the highest service evaluations are induced by the actor’s perspective in case of promotion-focused consumers, whereas they are induced by the observer’s perspective without the actor’s face in case of prevention-focused consumers.

This study investigated the impact of sustainable perceived value (SPV) on fashion consumers. The results revealed that SPV significantly affects customer satisfaction, loyalty, and the positive relationship between satisfaction and loyalty were confirmed, implicating SPV as a valid approach in measuring consumption value of sustainable fashion products.

The war in Ukraine found numerous global brands publicly taking stances on the issue. They turned to their social media channels to disclose their initiatives, which ranged from simple statements through to actions of greater substantiality such as donations and divestments and triggered a lively conversation and opposing consumer reactions. The phenomenon of brands advocating for crucial but polarising socio-political matters is known as brand activism and is a concept still under-conceptualised. Our study extends the knowledge of brand activism in two ways. First, we address literature calls for investigating the ways through which the marketplace endorses peace by exploring how brand activism serves as a peace marketing tool. We, therefore, term brands’ stance-taking promoting peace or in relation to war as “peace brand activism” and embark on fully unpacking it as a concept. Second, extending the understanding of the concept of brand activism that stands as mostly unidimensional, we proceed in developing a comprehensive conceptualisation of peace brand activism that tracks the range of forms it can take and accounts for its different types and characteristics. Our work employs an exploratory qualitative analysis to unravel how global brands become peace activists, as disclosed in their social media channels across different platforms. Our data captures the activities of a sample of global brands across social media channels. Our findings reveal the range of brand activism forms that can be employed by brands. We also unearth the types of peace brand activism approaches that can be adopted when disclosing peace brand activism initiatives on social media channels. Our work contributes to theory by providing a holistic understanding of the concept of brand activism for peace and explicates important implications for managers and policy makers alike.

Many companies seek to position their brands as global players to benefit from favorable quality and prestige inferences. Yet, recent research calls into question whether global brand positioning strategies are invariably beneficial. In many Western markets, the political environment becomes increasingly tense, with nationalism and ethnocentrism on the rise. Against this background, we seek to answer the question: How does political ideology influence the effectiveness of global brand positioning strategies? Do global brand positioning strategies create more value in liberal or conservative environments?

Promotion of brand-related sustainability initiatives (BSI) is a modern managerial issue, as BSI seems to impact not only sustainability but also consumer psychology toward a brand. In this regard, the author has extended self-congruity theory and suggested the concept of brand-sustainability-self-congruence (BSSC) as the image congruence of the triad comprising brand, BSI, and self-concept. Former surveys report predictive effects of BSSC on consumers’ brand evaluation, leading to increased brand equity (Kumagai, 2022, 2023).

Frontline employees (hereinafter FLEs) act as boundary spanners, primary representatives, and intermediaries between consumers and service organizations. They are often directly responsible for service delivery and are the customers’ first impression of service organizations. Therefore, maximizing FLE performance is vital for service organizations. Leaders have been argued to play a critical role in fostering FLE performance for a variety of reasons, one of which is to achieve goal-related results. To achieve those results, they often feel a pressing need to discipline their subordinates’ actions. Consequently, leaders may take corrective measures that display controlling behaviors to press subordinates’ best performance. This type of leadership style is known as Authoritarian Leadership (hereinafter AL), which refers to leaders with paternal attributes who utilize absolute authority and control over their subordinates with the expectation of unquestionable obedience. The literature, however, has reported mixed findings of the performance benefits of AL.