Journal of Advanced Marine Engineering and Technology
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v.38
no.10
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pp.1347-1353
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2014
It's possible for a human to breathe under water, if dissolved oxygen is effectively used. Fish can stay under water using the gill which extracts dissolved oxygen from water. Water includes small amounts of oxygen, so a human needs larger amounts of water to acquire oxygen enough for underwater breathing. The exhalation gas from a human is another method to get higher amounts of oxygen under water. It mainly composes of oxygen, nitrogen and carbon dioxide. So, if only carbon dioxide is decreased, the exhalation gas has good characteristics for breathing of a human under water. In this paper, composition of the exhalation gas from a human was analyzed using GC. Based on these results, the synthesized gas was prepared and mixed into water which was used for experimental devices to analyze separation characteristics of dissolved gases from water. Experimental devices included a water pump, a hollow fiber membrane module and a vacuum pump. The effects of pressure and water flow on separation characteristics of synthesized gas were investigated. The compositions of gases separated from water using synthesized gas were investigated using GC. These results expect to be applied to the development of underwater breathing technology for a human.
Purpose: Microsurgical exercise has been performed with rat femoral vessels. But, it needs animal laboratory, anesthesia and its keeping facilities. Materials and Methods: Ten human placentas were studied for suitability in a microvascular exercise. The size and useful length of vessels were measured, and various microvascular anastomoses were performed. Result: The human placenta has many vessels traversing its fetal surface. A variety of sizes are available down to vessels of diameter 1 mm and up to vessels of diameter 6.5 mm (1.0
Exponential growth has been observed in nuclear medicine procedures worldwide in the past decades. The considerable increase is attributed to the advance of positron emission tomography and single photon emission computed tomography, as well as the introduction of new radiopharmaceuticals. Although nuclear medicine procedures provide undisputable diagnostic and therapeutic benefits to patients, the substantial increase in radiation exposure to nuclear medicine patients raises concerns about potential adverse health effects and calls for the urgent need to monitor exposure levels. In the current article, model-based internal dosimetry methods were reviewed, focusing on Medical Internal Radiation Dose (MIRD) formalism, biokinetic data, human anatomy models (stylized, voxel, and hybrid computational human phantoms), and energy spectrum data of radionuclides. Key results from many articles on nuclear medicine dosimetry and comparisons of dosimetry quantities based on different types of human anatomy models were summarized. Key characteristics of seven model-based dose calculation tools were tabulated and discussed, including dose quantities, computational human phantoms used for dose calculations, decay data for radionuclides, biokinetic data, and user interface. Lastly, future research needs in nuclear medicine dosimetry were discussed. Model-based internal dosimetry methods were reviewed focusing on MIRD formalism, biokinetic data, human anatomy models, and energy spectrum data of radionuclides. Future research should focus on updating biokinetic data, revising energy transfer quantities for alimentary and gastrointestinal tracts, accounting for body size in nuclear medicine dosimetry, and recalculating dose coefficients based on the latest biokinetic and energy transfer data.
Journal of Korean Library and Information Science Society
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v.48
no.3
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pp.153-176
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2017
This article or study subjectively explores actual experiences of a human book from a phenomenal viewpoint and is based on considerable amounts of reference literature and the collecting/analyzing of precedent theses data. Selecting specific research samples and conducting in-depth interviews were made to elicit the phenomenal marks or responses in human book experiences. Samples included a total of three human book practicing teachers belonging to Gyonggi Provincial Office of Education, who were picked out or chosen according to their rich performance experiences/activities over a two year period. They were interviewed in four different basic topic areas or parts sectioned out to the following: 1) actual needs of a human book; 2) experiences in human book; 3) changes of cognition to the human book; and, lastly 4) improvement in the application of a human book. As a result, the number of schools, the number of readers, and the number of people who participated in human book activities continued to expand. In addition, human book activities have become an opportunity for growth not only for participating readers, but also for the human book itself.
As the hospitalized patients will be facing new stress situation due to change of his environment from home to hospital it will be very important to understand the psychological stress experienced by hospital patients not only for helping patients in the process of recovery from illness but also fulfil1ing the objective of comprehensive nursing care by understanding the needs of the patients. There is no doubt that it would be very helpful for treatment of patients as well as for improvement of nursing care if we know more about psychological needs of patients and give them adequate support to meet these needs. The study to find out the causes and degree of stress events experienced by hospitalized patients, with the objective of instituting improvement of nursing care program based on the needs of patients, was conducted during the month of September 1974 with 60 patients randomly selected from those admitted to medical and surgical wards at Yonsei Medical Center in that period The questionnaire form included 36 questions which are considered to be stress events for hospital patients, and was devide into five areas namely, such events related to 1) disease itself, 2) hospital environment, 3) nursing care and treatment, 4) communication and human relations, and 5) family and economic problems. The results of the study were as follows: 1. It was confirmed that hospitalization considered to be a stress producing factor and most patients perceived the admission to hospital as a stress factor. 2. According to the rating scale, it was found that degree of perceived stress shows a variation according to the source of stress producing event. 3. No significant differences in the mean values were observed statistically with the perceived stress levels according to demographic and other variables of patients related to hospitalization. 4. Among the questions related to disease itself, "Admission for surgery" was perceived most frequently as a stress event (97.14%) by patients. 5. With regard to the questions related to hospital environment, "death of the patient room-mate" was the most serious stress event perceived by patients (90%) and "living with hospital regulations"was considered to be less serious stress event (23.33%). 6. As for the questions related to nursing care and treatment, "limitation of freedom" was perceived as a stress factor most frequently (70.91%) by the patients and "worry for wrong treatment" turned out to be less frequent stress event (50.0%). 7. As for the questions related to communication and human relations, "difficulty to meet doctors when wanted"appeared to be the most frequent stress event by the respondents (75.86%) , followed by "no explanation about treatment or examination"(75.0%) and "no explanation about nursing care procedures"(71.66%). 8. With regard 111 tile questions related to family and economic problems, "inadequate finances for family living due to hospitalization"and "high cost of hospitalization" were the most frequent cause of stress mentioned by the patients. (80.0%). 9. As a result of application of the stepwise regression analysis, it was found that about 89% was explained by those events associated with disease itself, hospital environment and family and economic problems. By adding those events related to "nursing care and treatment" and "communication and human relation", 100% of stress associated with hospitalization was explained.
The purpose of this study was to examine what parents really want to daycare center and how much they are satisfied with the daycare service they use. This study also explored how exactly daycare teachers recognize the parental needs and satisfaction on daycare service. One hundred and seventy one parents who send their child to a daycare center in Seoul, and one hundred and thirty five teachers from the same daycare centers participated in this study. Parents were asked about their needs and expectation on daycare service and the degree of satisfaction on the daycare center (including educational facilities, teacher's role, specific programs, etc.). Teachers provided answers about their understanding on what the parents want and how much parents are satisfied with their daycare center. Results revealed that parents are generally satisfied with the daycare service such as educational programs and educational facilities and teachers' role conducting. However, some parent-teacher differences were found in their perception on the levels and domains of parental expectation and satisfaction with daycare service. The parent-teacher differences would give very practical tips for teachers, who plan and conduct everyday daycare programs and actually interact with children in the setting for better daycare service.
Community is crucial for human beings not only because they are born with communal self but also because social cooperation is more efficient than competition in many cases. Human beings are defined as Homo communicus living in residential community which is important for the fulfillment of their primary needs. Residential community is an 'intimacy zone' where personal and emotional interactions are made. This study aims at examining the health of residential community in Korea by exploring the level of place attachment and neighborhood trust. Previous studies indicate that place attachment and trust are influenced by three dimensions such as residents' characteristics, house types and regional environment. This study conducted a nationwide questionnaire survey and it shows that place attachment moulds neighborhood trust. The results of path analysis demonstrates that place attachment and trust appear high in detached house areas. Age of residents also gives positive influence on the level of place attachment and neighbourhood trust. This result gives significant policy implications for the development of residential community in Korea. Residential community as an intimacy zone has been eroded and desperately needs to be revitalized. For this, more concern should be given to the issue of desirable size of residential community and the types of houses. Detached house area must be supported by governmental policies.
The purpose of this study is to evaluate the housing unit and investigate needs of housing in Home Economics curriculum of Home Economics teachers. The questionnaire survey was conducted 98 teachers participated in the minor training course in Chungbuk, August of 2000. When the teachers made their class in the section of housing, they emphasized respectively as the textual order: the space of housing and family life, the utilization of space, clean of residing circumstance in the middle school: and in the high school there was also concerned to the textual order: choice of housing, the house planning, interior design, maintenance of house. The teachers focused into the arrange of furniture and interior design for the students in the class, drawing of a plan in the contents of practical experience and performance. According to the survey results, the main point of class in housing should be emphasized the arranging of own room and function of other spaces in house for the students in the middle school. The high school curriculum should focus on the practical area to connect with the interior design. And in the section of housing it was needed to add the contents of management in the multi-family housing, housing problems, neighborhood environment for elderly, and also community planning.
The purpose of this study is to investigate the factors associated with marital satisfaction and stability among married men and women. The major findings of this study are as follows: the factors associated with marital satisfaction and stability are different between gender. For married women the positive communication with spouse strongly had positive effect on women's marital satisfaction, while destructive conflict strongly had negative effect on women's marital stability. Otherwise, married men's positive communication with spouse was the most important factor in the marital satisfaction. The emotional support of family-of-origin strongly had effect on men's marital stability. This study reveals that the emotional support from families of origin have a direct effect on needs for affection and autonomy, positive communication, destructive conflict patterns, sexual satisfaction, marital satisfaction and stability. Therefore, the results could be useful resources for family counselors and researchers to develop educational program for married couples.
As a solution to the wasteful consumption of resources in fashion design, this research aims to develop a process guideline for ZWF Design Methods from an educational perspective. After selecting the Jigsaw Puzzle, Subtraction Cutting, and Layer Methods as representative ZWF Methods, an application experiment was designed to deduct each Method's process, characteristics, needs, and improvement points. Its results were analyzed through action protocol analysis, expert evaluation, and qualitative analysis. Based on the analysis, this research proposed a ZWF guideline and a step-by-step guide suitable to the students' needs. By following the guideline, students can use the chosen ZWF Method to create a planned or an accidental design. In addition, they can practice ZWF effectively step by step in the order of Layer, Jigsaw Puzzle, and Subtraction Cutting. Thus, this research can provide the basis for ZWF education, which can lead to expanded application of ZWF in the future and reduce textile waste.
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