• Title/Summary/Keyword: DIY

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Development and Applications of an Optic Oxygen Sensor Datalogger for in situ Dissolved Oxygen Monitoring in Coastal Water (연안 용존산소 현장 모니터링용 산소광센서 데이터로거 개발 및 적용)

  • Jae Seong, Lee;Hyunmin Baek
    • Ocean and Polar Research
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    • v.45 no.2
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    • pp.33-42
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    • 2023
  • Dissolved oxygen (DO) is a crucial parameter for assessing environmental conditions in aquatic ecosystems. However, commercial in situ dataloggers for oxygen optodes can be relatively expensive and limited in their specifications. In this paper, we present a novel design for a DO datalogger system based on the control boards family with RP2040 MCU chipset. Our design includes two types of dataloggers: a simple logging system and a programmable system for sampling rates via magnetic switches underwater for divers. We provide detailed descriptions of the system, including the MicroPython source code and drawings to aid in construction. We also discuss the various applications of our DO datalogger system in monitoring dissolved oxygen concentration in coastal waters and assessing the benthic metabolism of aquatic ecosystems. Our DO datalogger system provides an affordable and flexible option for researchers to accurately monitor DO concentrations in aquatic environments, and thereby improve our understanding of these complex ecosystems.

The Application of Brain Stimulation in Psychiatric Disorders : An Overview (정신질환에서 뇌자극술의 적용)

  • Roh, Daeyoung;Kang, Lee Young;Kim, Do Hoon
    • Korean Journal of Biological Psychiatry
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    • v.24 no.4
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    • pp.167-174
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    • 2017
  • Based on advances in biotechnology and neuroscience, neuromodulation is poised to gain clinical importance as a treatment modality for psychiatric disorders. In addition to old-established electroconvulsive therapy (ECT), clinicians are expected to understand newer forms of neurostimulation, such as deep brain stimulation (DBS), vagus nerve stimulation (VNS), repetitive transcranial magnetic stimulation (rTMS), transcranial direct current stimulation (tDCS) and transcranial alternating current stimulation (tACS). Given the growing interest in non-invasive neuromodulation technologies, clinicians may seek sufficient information about neuromodulation to inform their clinical practice. A growing literature suggests that applications of non-invasive neuromodulation have evidence particularly for indications where treatments are currently insufficient, such as drug-resistant depression. However, positive neuromodulation studies require replication, and the precise interactions among stimulation, antidepressant medication, and psychotherapy are unknown. Further studies of long-term safety and the impact on the developing brain are needed. Non-invasive neuromodulatory devices could enable more individualized treatment. However, do-it-yourself (DIY) stimulation kits require a better understanding of the effects of more frequent patterns of stimulation and raise concerns about clinical supervision, regulation, and reimbursement. Wide spread enthusiasm for therapeutic potential of neuromodulation in clinical practice settings should be mitigated by the fact that there are still research gaps and challenges associated with non-invasive neuromodulatory devices.

A Suggestion for the Development of Cultural Products through the Analysis of the Significance Patchwork Wapping Colthes (Jogakbo) (조각보 의미 분석을 통한 문화상품 개발 방안)

  • Kim, Yeo-Kyung;Hong, Na-Young
    • Journal of the Korean Society of Costume
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    • v.59 no.3
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    • pp.145-156
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    • 2009
  • This study proposes the product development through an organic link with multi-faceted analysis on the archetype of traditional costumes culture. In order to find ways to develop cultural products, Jogakbo was selected, and the research result is as following. 1. Analysis on the types of Jogakbo products sold in the market shows that there are not only living, stationary, and fashion items, but also DIY packages. In terms of materials used, most of these Jogakbo products were made of fabric or mixture of different materials. These products displayed similar tendency by reflecting formative characteristics of Jogakbo. 2. This study analyzed the color, surface composition, material, manufacturing, and usage of Jogakbo. The rotor of Jogakbo is mostly composed of mono tone colors or Obangsac(five-element colors). The mono tone colors carries environmentally friendly meaning as it is using the natural color and Obangsac means harmony. Moreover, the surface composition of Jogakbo represents the expansion through connection and its material is also meaningful in that it is recycling. Manufacturing of Jogakbo has educational significance, fortune-wishing characteristics, decorative function, it also gives a gratification of handcraft. The usage of Jogakbo is a multi-(unctional article whose form is determined by an item that is held inside it. 3. Through the analysis on Jogakbo, this study presents the baby wear in relation to the ere-friendliness of colors, brooch sets using the surface composition, dresses using recycling fabric, children's educational instruments with educational significance, as well as multi-functional packages in regards to usage of Jogakbo.

The Satisfaction with the Showrooms of the Total Interior Brands applied on Experience Design - Focused on the Showrooms Managed by Domestic Building Material Companies - (경험디자인이 적용된 토탈 인테리어 브랜드의 쇼룸 만족도 - 국내 건자재 기업들이 운영하는 쇼룸을 중심으로 -)

  • Lee, Sang-Mi;Han, Hae-Ryon
    • Korean Institute of Interior Design Journal
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    • v.26 no.5
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    • pp.25-33
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    • 2017
  • The home interior market has been expanding due to the continuing increase of single-person households, the craze for DIY interior design, the increasing demands for old-house renovation and the customer needs for good housing conditions. Now the building materials companies are scrambling for the whole interior market share. The heretofore companies have focused only on the single items, but now they are promoting the comprehensive interior products as total interior brands. Besides, they use their own showrooms to share their brand culture experience and have communication with their customers. As for the show rooms, they have got to represent the identities of the building materials brands. And to present them effectively, it needs to meet the customer needs and emotions. In this connection, the object of this study is to clarify the definitions and the characteristics of the show rooms and the experience design through the literature research, analysis the space characteristics of the experience design in the show rooms of total interior brands, investigate their customer satisfaction and present the direction and the effective methods of the space design for the show rooms of the future. And the study result shows the experience design is the key factor to the high user satisfaction. Thus, the show rooms should provide the well-balanced experience with the adoption of a variety of experience design elements. Especially, the experience design elements are needed in the room to display the merchandise. Lastly, the show rooms are expected to increase constantly, so the study targeted at the specific area, Seoul should be expanded to other areas. And this study based on the customer survey alone have a limit to giving the concrete proposals. Therefore, the follow-up studies with the different methods such as one-to-one interview will be in demand.

DEVELOPMENT OF A VALLEY MANAGEMENT SYSTEM FOR GIS AND REMOTE SENSING EDUCATION

  • Wu, Mu-Lin;Wong, Deng-Ching;Wang, Yu-Ming
    • Proceedings of the KSRS Conference
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    • v.2
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    • pp.570-573
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    • 2006
  • College GIS and remote sensing education usually consists of commercial software packages implementations in the classroom. Computer programming is quite important when college graduates work in private or public sectors relevant with GIS and remote sensing implementations. The objective of this paper was to develop a valley management system which implements GIS and remote sensing as the key components for education. The Valley Authority is entitled with water resource protection for sustainable drinking water supply of the second largest city in Taiwan. The test area consists of three different government agencies, Forest Service, EPA, and Water Resource Agency. Materials were provided by the Valley Authority in ArcGIS file format. MapObjects have made the GIS development process much easier. Remote sensing with image manipulation functions were provided by computer programming with Visual Baisc.NET and Visual C#.NET. Attributes inquiry are performed by these two computer languages as well. ArcGIS and ArcPad are also used for simple GIS manipulations of the test area. Comparison between DIY and commercial GIS can be made by college students. Functions provided by the developed valley management system depending on how many map layers have been used and what types of MapObjects components have been used. Computer programming experience is not essential but can be helpful for a college student. The whole process is a step-by-step sequence which college students can modify to depict their capability in GIS and remote sensing. The development process has gone through one semester, three hours every week in 18 weeks. College students enrolled in this class entitled with GIS showed remarkable progresses both in GIS and remote sensing.

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A study on the characteristics of Bootleg fashion (부틀렉 패션의 특성에 대한 연구)

  • Ahn, Sehee;Kim, Yoon
    • The Research Journal of the Costume Culture
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    • v.28 no.1
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    • pp.30-44
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    • 2020
  • Bootleg fashion emerged from the fashion industry after 2010, and has been used across a range of different genres. However, it has yet to be theoretically established; therefore, this study will explain bootleg fashion as a new genre, which will help in the planning and designing of products within domestic fashion brands. The purpose of this study was to examine the characteristics and internal meaning of bootleg fashion as a recently emerged fashion phenomenon that borrows from other brands without permission. The research methodology included a theoretical literature review of fashion sites and related materials and empirical research using case analysis. Results of the analysis of both characteristics and internal meaning of bootleg fashion suggest the following characteristics: "unauthorized use of symbolic elements," "disorganization of boundaries between fashion," "multiplicity through globalization," and "newness through deconstruction and recombination." Internal meanings derived from the analysis were "parody through symbol," which is seen as "a parody and homage resulting from the unauthorized use of a brand," while "decomposition through disorganization" is seen as a break-up of the boundaries between different fashions from a mainstream-oriented perspective. A juxtaposition of elements was demonstrated by "playfulness through transformation," which showed that such fashion cannot coexist with positional transposition. Finally, "spread as a cultural phenomenon" was derived through the diffusion through digital media with DIY culture. As such, bootleg fashion has been reborn as an innovative fashion genre, breaking the taboo of the illegitimate from the past and demonstrating new endeavors.

Accuracy of Self-Checked Fecal Occult Blood Testing for Colorectal Cancer in Thai Patients

  • Lohsiriwat, Varut
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.18
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    • pp.7981-7984
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    • 2014
  • Purpose: Colorectal cancer (CRC) screening with fecal occult blood testing (FOBT) has been associated with a reduction in CRC incidence and CRC-related mortality. However, a conventional FOBT requires stool collection and handling, which may be inconvenient for participants. The EZ-Detect$^{TM}$ (Siam Pharmaceutical Thailand) is a FDA-approved chromogen-substrate based FOBT which is basically a self-checked FOBT (no stool handling required). This study aimed to evaluate the accuracy of EZ-Detect for CRC detection. Methods: This prospective study was conducted in the Faculty of Medicine, Siriraj Hospital, Bangkok, Thailand between November 2013 and May 2014. Some 96 patients with histologically-proven CRC and 101 patients with normal colonoscopic findings were invited to perform self-checked FOBT according to the manufacturer's instructions. Results were compared with endoscopic and pathologic findings. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for CRC detection were calculated. Results: The present study revealed the sensitivity, specificity, PPV and NPV of this self-checked FOBT for CRC detection to be 41% (95% CI: 31-51), 97% (95% CI: 92-99), 93% (95% CI: 81-98) and 63% (95% CI: 55-70), respectively. The overall accuracy of the self-checked FOBT for identifying CRC was 70%. The sensitivity for CRC detection based on 7th AJCC staging was 29% for stage I, 32% for stage II and 50% for stage III/IV (P=0.19). The sensitivity was 33% for proximal colon and 42% for distal colon and rectal cancer (P=0.76). Notably, none of nine infiltrative lesions gave a positive FOBT. Conclusions: The self-checked FOBT had an acceptable accuracy of CRC detection except for infiltrative tumors. This home-administrated or 'DIY' do-it-yourself FOBT could be considered as one non-invasive and convenient tool for CRC screening.

Slaking, Swelling and Shear Strength Characteristics of Pohang Mudrocks (포항이암층의 Slaking, 팽창 및 전단강도특성)

  • 이영휘
    • Geotechnical Engineering
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    • v.12 no.2
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    • pp.33-42
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    • 1996
  • The weathering of mudrock in the Pohang area is mainly caused by slaking and swelling when the mudrock is absorbed with water. In this regard, this paper chows the results of chemical analysis and the identification of rock-forming minerals from XRD. It also compares the slaking and swelling characteristics of mudrocks sampled from 3 different sites. The chief rock -forming minerals are the quartz, and the several types of clay minerals. The slake durability indices are ranged from 71% to 96%, and these values are closely related to the liquid limit of the powdered nock specimen. In a similar manner to the slaking characteristics the greatest values of the swelling pressure and the swelling strain were measured from the mudrock specimen with the highest value of liquid limit. The greatest measured values of the swelling pressure and the swelling strain are 9.4 kg 1 cm2 and 33.5% respectively. The residual sheer strength of mudrock decreases as the number of wet -diy cycles increases, and the residual strength at 5 cycles are measured to c,=0.24kg/cm2 and p,=28$^{\circ}$. The lowest residual strength is measured at the fresh rock -rock contact surface in the moist condition of which values are cr: 0 and n,: 21.5$^{\circ}$.

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An Exploratory Study on Makeup Rituals of Generation Z Consumers (Z세대 소비자의 화장 의례에 대한 탐색적 연구)

  • Lee, Jaekyong;Choo, Ho Jung;Yoon, Namhee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.45 no.2
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    • pp.356-375
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    • 2021
  • The Generation Z (Gen-Z) consumer has a unique beauty-consuming behavior that is distinct from the previous generations. This study aims to identify the meaning of makeup rituals based on the theoretical framework of the ritual concept. In-depth interviews were conducted with fifteen females in their mid-teens to early 20s. The results showed that Gen-Z has different types of makeup ritual scripts for both ordinary days and special days, which are constantly being re-written and revised based on the experience accumulated. In addition, there are various types of ritual artifacts that play an important role in Gen-Z's makeup ritual, and that they provide psychological comfort and satisfaction. The importance of DIY (Do It Yourself), collecting, and independent brands is emphasized. The role of Gen-Z in the makeup ritual was expanding from a creator for her own ritual to a collaborator for peers' rituals, and sometimes the expansion goes beyond the direct relationships to virtual ones through SNS (Social Network Service). The Gen-Z cohort is found to be a member of beauty knowledge network through which they learn, share, and create the know-how and shopping skills.

Characteristics of Neo-Deconstructivism in Modern Men's Fashion Bags -Focusing on the 2019 S/S~2021 S/S Men's Collection- (현대 남성 패션 가방에 나타난 신해체주의 특성 -2019 S/S~2021 S/S 남성 컬렉션을 중심으로-)

  • Hong, Yunjung;Kim, Rira
    • Journal of Fashion Business
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    • v.26 no.4
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    • pp.32-51
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    • 2022
  • This study analyzed the characteristics and expression techniques of men's fashion bags and their aesthetic and formative values in modern men's fashion from the perspective of neo-deconstructivism. The study subjects were men's fashion bags appearing in four collections in Paris, Milan, London, and New York in the 2019 S/S-2021 S/S season. As a research method, the characteristics and expression techniques of the new disintegration of men's fashion bags were analyzed and categorized through prior research and literature research. The results of the study are as follows: First, the neoclassical characteristics of men's fashion bags caused 'Re-creation' to appear as the dissolution of the design principle and structure of the bag, and it was derived as 'decomposition of form' and 'decomposition of dress method'. Second, the 'Inclusive Diversity' of modern men's fashion bags of neo-deconstructivism appears in the form of gender demarcation and dissonance coordination. Third, 'Playfulness' in men's fashion bags involves the pursuit of fun through unconventional changes in the shape, size, and design of the bag, and it sometimes provides a fresh, new play experience through unpredictable design elements. Fourth, the 'Pursuit of new values' in male's fashion bags was a characteristic wherein the boundary between DIY attire and daily clothes and high fashion by the individual selection of consumers was blurred. This work is meaningful in that it conducted a basic study of men's fashion bags by examining the modern men's fashion bag from the perspective of the philosophical trend of neo-deconstructivism and categorizing its characteristics.