• International Journal of Computer Science & Network Security
• /
• v.22 no.7
• /
• pp.359-365
• /
• 2022

Scholars are paying increasingly close attention to brain research and the creation of biological neural networks, artificial neural networks, artificial intelligence, neurochips, brain-computer interfaces, prostheses, new research instruments and methods, methods of treatment, as well as the prevention of neurodegenerative diseases based on these data. The authors of the study propose their hypothesis on the understanding of the phenomenon of consciousness that answers questions concerning the criteria of consciousness, its localization, and principles of operation. In the study of the hard problem of consciousness, the philosophical and scientific categories of consciousness, and prominent hypotheses and theories of consciousness, the authors distinguish "the area of the conscious mind", which encompasses several states of consciousness united by the phenomenon of integrated consciousness. According to the authors, consciousness is a kind of executor of the phenomenological idea of the "chalice", so the search for it should be conducted deeper than the processes in the power of thought consciousness and transconsciousness, to which integrated consciousness can act as a lever. However, integrated consciousness may have the capacity to transcend into lower states of consciousness, which requires further study.

• Journal of the Korean Society for Heat Treatment
• /
• v.34 no.4
• /
• pp.185-190
• /
• 2021

The extrusion experiments using the 7075 aluminum billet have been performed to investigate the effects of die cooling and ram speed on the occurrence of surface defects on the extrudate. The purpose of die cooling was to suppress overheating of the extrudate at the moment of extrusion. In the present die cooling system, liquid nitrogen has been injected in to the die and sprayed to the surface of extrudate. Ram speed was either kept or varied in the range of 1.1~1.7 mm/sec. throughout one extrusion shot to check the occurrence of surface defects. Every extrusion started at a ram speed of 1.25 mm/sec. The temperature of extrudate was measured using a laser thermometer. The 7075 billet of 180 mm in diameter and 550 mm in length was preheated at 390℃ and extruded to get a single plate of 8000 mm in length, 150 mm in width and 10 mm in thickness. Each extrudate was checked by eye to find the surface defects. The microstructures were obtained in the specimen cut from each corner of the extrudate using the EBSD micrographs.

• Journal of Korean Academy of Nursing
• /
• v.52 no.2
• /
• pp.134-143
• /
• 2022

Purpose: The study aimed to understand the delirium experience of intensive care unit (ICU) patients. Methods: We performed a qualitative study using Colaizzi's phenomenological method. Eleven patients, who experienced delirium according to the Confusion Assessment Method for ICU, participated after transferring to general wards from the ICU. Individual in-depth semi-structured interviews ranging from 30 minutes to 2 hours in length were conducted between November 2018 and August 2019. Results: Nine themes and four theme clusters emerged. The four theme clusters were: 1) "Overwhelmed by fear," which describes the experience of a patient close to death and the feeling of difficulty in understanding disorganized thinking; 2) "Anxious about not understanding the situation," which means that patients' sense of time and space were disordered in the ICU; 3) "Being deserted," which indicates the feeling of being separated from others and yourself; and 4) "Resistance to protect my dignity," which indicates that the dignity and autonomy of an individual in the patient's position at the ICU, are ignored. Conclusion: Nursing interventions are needed that would enable patients to maintain orientation and self-esteem in the ICU. In addition, healthcare providers need to provide information about the unfamiliar environment in the ICU in advance.

• Journal of Internet of Things and Convergence
• /
• v.7 no.4
• /
• pp.43-50
• /
• 2021

The purpose of the study was to explore experience of self-awareness of nursing students in 'Counseling theory and practice' online class. Participants were 40 of nursing students learning of counseling theory subject in online, and Colaizzi's phenomenological method was used. The results were as follows. There were five theme clusters that 'find hidden my inner side', 'improve my healthy inner self', 'reflection of myself', 'recognize each others' different viewpoints' and 'create an aspiration and an impact'. Therefore, nursing students established self-awareness after learning of 'Counseling theory and practice' online class.

• Journal of muscle and joint health
• /
• v.29 no.3
• /
• pp.151-164
• /
• 2022

Purpose: The purpose of this study was to explore the illness experiences of patients who had spinal surgery. Methods: Colaizzi's phenomenological method was used for the data analysis. Patients who had spinal surgery were included in this study. The data was collected between April and October 2022 by conducting a one-on-one, in-depth interview. Results: Five theme clusters were identified based on the illness experiences of patients who had spinal surgery: "An agonizing life changed by pain", "Efforts to alleviate the pain", "Surgery was determined to be the best way to relieve pain", "Recovered daily life after relieving pain caused by surgery", and "Dedicated to living a healthy, pain-free life". The analysis further yielded 20 themes. Patients used various treatment methods to relieve pain, but ultimately chose surgery due to unbearable pain. Patients who had spinal surgery felt grateful that they were feeling good and healthy because they could return to their normal daily lives. After all, the pain was relieved after the surgery. Even though some pain remained unrelieved, the patients had the hope of getting better through exercise and rehabilitation. Conclusion: This study provides an in-depth understanding and meaning of the illness experiences of patients who had spinal surgery and presents new perspectives on clinical practice. The findings of this study are expected to be useful in developing and applying systematic and customized nursing interventions before and after spinal surgery.

• Journal of the FoodService Safety
• /
• v.3 no.1
• /
• pp.28-37
• /
• 2022

With the increased development of the dining sector, several restaurants have emerged and are becoming more advanced. Since the Michelin Guide Seoul publication in Korea, the fine-dining market has attracted attention from guests. Moreover, the number of customers visiting fine-dining restaurants has increased comparatively. However, it has been a mere 6 years since the publication of the Michelin Guide Seoul, and domestic materials and research related to the Michelin Guide are insufficient. Therefore, this research examines the factors responsible for restaurants to gain Michelin stars, and the effect of the Michelin guide on customers to select restaurants. Customers who have visited and experienced the star restaurants were interviewed, as well as the owner chefs and personnel managing the restaurant. The interviews were conducted from August to September 2020 using the Colaizzi method. The survey was designed to extract meaningful sentences or phrases from the participant interviews, categorize general and abstract statements into topic clusters, and describe the essential experience. This research aimed to determine the effect of the Michelin guide on customers for a selection of the restaurants and star restaurants. It is important to understand the development of Michelin restaurants and the effective factors which make customers choose the restaurants. Also, results of this study will be a future guide for the possibility of developing domestic fine-dining restaurants, normal restaurants, and the food service industry.

• The Journal of Korean Academic Society of Nursing Education
• /
• v.27 no.4
• /
• pp.347-358
• /
• 2021

Purpose: The purpose of this study is to explore the experiences of nurses who have suffered from hurt feelings in their relationships with medical personnel in intensive care units (ICUs). Methods: Data were collected from May 2019 to August 2020 through individual in-depth interviews with 8 ICU nurses. Verbatim transcripts were analyzed using the MAXQDA program, employing a phenomenological method designed by Colaizzi. Results: Four theme clusters and nine themes were identified. The themes cluster that emerged were as follows: high-handedness from a lack of understanding and consideration, not being respected as a professional, having to endure sadness alone, and strategies for accepting pain. Conclusion: In ICUs, nurses are being emotionally wounded, resulting in a variety of hurt feelings, not only by doctors, but also by other nurses. Nurses were heavy-hearted because they wanted the participants to do their part and care for critically ill patients proficiently. However, they did not treat ICU nurses as specialized professionals. The participating nurses said they felt pressure, fear, and intimidated. In addition, they felt lonely because their head nurses, seniors, or colleagues did not protect or support them. This study helped develop a program to decrease the nurses' emotional distress and create a safe work environment where they respected and cared for each other without undergoing anguish.

• Asia-Pacific Journal of Business
• /
• v.13 no.2
• /
• pp.197-207
• /
• 2022

Purpose - This study reestablished the concept of mixed emotions experienced in online and offline shopping environments, and structuralized emotional responses which manifest mixed emotions in each channel, and developed a method of measuring overall mixed emotions in consideration of the asymmetry of emotions. Design/methodology/approach - This study conducted a focus in-depth interview based on phenomenological research and exploratory preliminary survey using questionnaires. In addition, a survey was conducted as a quantitative survey. Findings - Qualitative and quantitative researches were conducted to derive major emotional responses items which manifest mixed emotions in online and offline shopping environments and determine differential emotional structure in each channel. As a result, it was confirmed that mixed emotions consisted of 5 factors in each channel and 21 emotional responses. In addition, a method of measuring overall mixed emotions considering the asymmetric of emotions was developed to prove the difference in behavioral responses. Research implications or Originality - This study is meaningful in that it helps companies efficiently manage and understand customer responses to their products by classifying and systemizing the emotional responses experienced by consumers in online and offline purchase and consumption situations according to the purchase environment.

• Wind and Structures
• /
• v.37 no.3
• /
• pp.191-209
• /
• 2023

This work investigates the subcritical free-shear prism wake at Re=22,000 by the Koopman analysis using the Dynamic Mode Decomposition (DMD) algorithm. The Koopman model linearized nonlinearities in the stochastic, homogeneous anisotropic turbulent wake, generating temporally orthogonal eigen tuples that carry meaningful, coherent structures. Phenomenological analysis of dominant modes revealed their physical interpretations: Mode 1 renders the mean-field dynamics, Modes 2 describes the roll-up of the Strouhal vortex, Mode 3 describes the Bloor-Gerrard vortex resulting from the Kelvin-Helmholtz instability inside shear layers, its superposition onto the Strouhal vortex, and the concurrent flow entrainment, Modes 6 and 10 describe the low-frequency shedding of turbulent separation bubbles (TSBs) and turbulence production, respectively, which contribute to the beating phenomenon in the lift time history and the flapping motion of shear layers, Modes 4, 5, 7, 8, and 9 are the relatively trivial harmonic excitations. This work demonstrates the Koopman analysis' ability to provide insights into free-shear flows. Its success in subcritical turbulence also serves as an excellent reference for applications in other nonlinear, stochastic systems.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
• /
• v.34 no.2
• /
• pp.133-140
• /
• 2023

Objectives: The coronavirus disease pandemic affected people's lives in different ways, including child education and parent-child interactions. The present study aimed to identify the educational opportunities of children and challenges of parents during this pandemic. Methods: This study was conducted using a qualitative and phenomenological method. The participants were 23 parents of children aged 7-12 years, selected by purposive sampling method. Data were collected by semi-structured interviews, which continued until data saturation was reached, and then classified and processed following Strauss and Glasser's approach. Results: The findings were classified as parenting transformation, attachment challenges, and parenting challenges due to macro-systemic changes. Online education and changes caused by social distancing were the most significant parenting challenges. Moreover, children did not have the necessary space to be independent and self-sufficient. Conclusion: For many children, adapting to virtual education has been challenging; therefore, parents should change their parenting control and support. The emergence of such challenges has led to the creation of more opportunities in the field of child education.