• 제목/요약/키워드: Dual Core System

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시각장애인을 위한 RFID 의약품 음성안내 단말기 개발 (Development of RFID terminal for the Blind to Voice Guide Pharmaceutical E-pedigree)

  • 강준희;안성수;김진영
    • 전자공학회논문지 IE
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    • 제47권3호
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    • pp.19-25
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    • 2010
  • 의약품 정보에 대한 접근이 쉽지 않은 시각장애인을 위해 의약품 정보 안내 단말기를 개발하였다. 본 연구에서는 시각장애인에게 의약품 관련 정보를 전달하기 위하여 RFID 기술을 사용하였다. 안내단말기로 의약품에 부착된 RFID 태그를 인식하면 태그의 고유 ID에 따라 단말기를 통해 음성으로 의약품 정보를 안내하도록 하였다. 의약품 정보는 식품의약품안전청에서 운영하는 이지드럭 사이트를 통해 의약품 정보를 취득하도록 하였다. 정보 안내 단말기는 휴대가 간편하도록 목걸이 형태로 제작 하였으며, 평상시에도 유용하게 사용할 수 있도록 mp3 재생기능을 탑재하였다. 본 연구에서는 단말기의 코어칩으로 ARM 계열의 Cortex M3 칩을 사용하였고, RFID 회로를 구현하기 위하여 저전력의 NXP의 MFRC523 칩셋을 사용하였다. MFRC523 칩은 모바일에 적용되는 저전력 기능이 탑재되어 있다. 음성회로를 구현하기 위해서는 VS1003B MP3 Decoder IC를 사용하였고 의약품 정보서버와의 무선 통신을 위해는 CC2500 칩셋을 사용하였다. RFID 프로토콜은 ISO 14443A 타입과 B타입을 모두 지원하도록 개발하여 다양한 프로토콜로 확장이 가능하도록 개발하였다. 본 시스템을 사용하면 시각장애인에게 의약품 정보를 편리하게 전달할 수 있어 시각장애인의 의약품 오남용을 줄일 수 있다.

사고로 남편을 잃은 여성의 경험 (A Study on Woman's Experience of Being Bereaved of Her Husband by an Accident)

  • 박성학;최미혜;정연강
    • 지역사회간호학회지
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    • 제7권2호
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    • pp.294-312
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    • 1996
  • Relatively young widows, who are left with young children by a sudden death of their husbands, will be faced with not only psychological troubles such as individual anxiety and frustration but also the dual burden of playing both father and mother roles in a family, Also, family members have difficulty in adapting themselves to new circumstances of the family system, the training and raising of family members, and management of the family economy. In this study, the realistic resources on the experience of middle-aged women who are bereaved of their husbands by accidents were explored. The purpose of this study is to help widows adapt to life in society and live a more positive life by setting a new goals and recovering from a lost and twisted life. 11 women, who have experienced the loss their husbands and live in the Seoul metropolitan area were studied. The research took 116 days from December 15, 1995 to April 8, 1996. The method of research was direct interviews. While having interviews with them, the contents were recorded with their consent. The ground theory was that used by Strauss & Corbin(1990) in the analysis of the data. 81 concepts were analyzed and they were subdirided into 22 subordinate categories through the course of the analysis. These were then classified into 9 general categories. In the course of being categorized, 'absurdity' was showed as a core category. The subordinate categories 'surprise', 'gloom', 'grudge', 'helplessness', 'emptiness', and 'loss' were united in the core category 'absurdity'. Ominous presentiment, belated notice, death, surprise, gloom, grudge, helplessness, emptiness, loss, the situation of the children, lack of support from neighbors, support from neighbors, mulling over ways to live, choosing a job, strengthening, reinforcement, burden, sadness, smoldering, yearning, overcoming these 22 subordinate categories were re-composed into 9 general ones the husband's death, absurdity, presence of children, existence of support, self-support ability, preparation of countermeasures, self-reinforcement, toilsomeness, and overcoming. 'Absurdity' widows experience was shown in the results of 'toilsomeness' and 'overcoming' through reaction, confrontation, and adaptation. According to the analysis the central phenomenon was absurdity, the causal condition of the death of a husband, the presence of children and the existence of support, and the meditated situation of self-support. To solve absurdity, the preparation of countermeasures and self-reinforcements were shown resulting in toilsomeness and overcoming. Through the contrast in the data, the following statements were deduced: (1) If the death of the husband is expected, the more a widow will feel absurdity. (2) The more children she has and the younger she is, the more a widow will feel absurdity. (3) The lower support she is given, the more a widow will feel absurdity. (4) The larger self-ability she has, the more actively she will prepare countermeasures. (5) The smaller self-ability she has, the more passively she will prepare countermeasures. (6) The larger self-ability she has, the weaker self-reinforcement she will preform. (7) The smaller self-ability she has, the stronger self-reinforcement she will perform. (8) The more actively she prepares countermeasures for absurdity, the better she will overcome. (9) The more passively she prepares counter measure for absurdity, the worse she will overcome. (10) The stronger self-reinforcement for absurdity she performs, the better she will overcome. (11) The weaker self-reinforcement for absurdity she performs, the worse she will overcome. Through the results in this study, the following suggested: 1) A study whose object is all family members, and a comparative study on the case of a husband who has lost his wife should be done. These studies can be expected to develop a more refined theory. 2) Because of the collapse of the extended family system and the changes of family culture in Korea, a widow's status and position are apt to be ambiguous between her husband's home and her parent's. Therefore a new study on family culture should be made. 3) A continuous study on growing social Self Help Groups should be requested for the widows of this study to re-establish and recover from their twisted and scattered lives.

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고성능 디스플레이 응용을 위한 8b 240 MS/s 1.36 ㎟ 104 mW 0.18 um CMOS ADC (An 8b 240 MS/s 1.36 ㎟ 104 mW 0.18 um CMOS ADC for High-Performance Display Applications)

  • 이경훈;김세원;조영재;문경준;지용;이승훈
    • 대한전자공학회논문지SD
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    • 제42권1호
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    • pp.47-55
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    • 2005
  • 본 논문에서는 각종 고성능 디스플레이 등 주로 고속에서 저전력과 소면적을 동시에 요구하는 시스템 응용을 위한 임베디드 코어 셀로서의 8b 240 MS/s CMOS A/D 변환기 (ADC)를 제안한다. 제안하는 ADC는 아날로그 입력, 디지털 출력 및 전원을 제외한 나머지 모든 신호는 칩 내부에서 발생시켰으며, 본 설계에서 요구하는 240 MS/s 사양에서 면적 및 전력을 동시에 최적화하기 위해 2단 파이프라인 구조를 사용하였다. 특히 입력 단에서 높은 입력 신호 대역폭을 얻기 위해 개선된 부트스트래핑기법을 제안함과 동시에 잡음 성능을 향상시키기 위해 제안하는 온-칩 전류/전압 발생기를 온-칩 RC 저대역 필터와 함께 칩 내부에 집적하였으며, 휴대 응용을 위한 저전력 비동작 모드 등 각종 회로 설계 기법을 적절히 응용하였다. 제안하는 시제품 ADC는 듀얼모드 입력을 처리하는 DVD 시스템의 핵심 코어 셀로 집적되었으며, 성능 검증을 위해 0.18um CMOS 공정으로 별도로 제작되었고, 측정된 DNL과 INL은 각각 0.49 LSB, 0.69 LSB 수준을 보여준다. 또한, 시제품측정 결과 240 MS/s 샘플링 속도에서 최대 53 dB의 SFDR을 얻을 수 있었고, 입력 주파수가 Nyquist 입력인 120 MHz까지 증가하는 동안 38 dB 이상의 SNDR과 50 dB 이상의 SFDR을 유지하였다. 시제품 ADC의 칩 면적은 1.36 ㎟이며, 240 MS/s 에서 측정된 전력 소모는 104 mW이다.

긴장의 시대 속에서 규범적 전문주의를 촉진하는 기독교교사의 수행적 대화에 관한 연구 (Christian Teachers in Tense Situation: Performative Dialogue Stimulating Normative Professionalism)

  • 이나 텔 아베스트
    • 기독교교육논총
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    • 제61권
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    • pp.9-35
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    • 2020
  • 네덜란드에서 20세기 중반부터 교사, 학생, 그리고 가족의 구성은 세속화 시대와 다원주의 시대라는 이름으로 급속히 변화하고 있다. 더 이른 시기에 부모의 종교적이고 혹은 세속적인 세계관 그리고 학교의 교육 철학은 서로의 차이를 조율하며 학생의 정체성 발달에 대한 일원화된 관점으로 결합되었다. 양쪽 모두 부모의 가족 내의 사회화와 양육 방식 그리고 교사의 학교에서의 문화화의 노력은 유사한 방향으로 흘러갔다. 부모의 학교 선택은 특별한 종교적 세계관에 대한 헌식으로 결정되었고, 종종 기독교에 대한 감흥과도 같다. 학생들의 종교적 정체성도 분명한 모습으로 발전했다. 그러나 최근에 가정과 학교에서 다문화성은 부모와 교사들에게 주도적이다. 신앙 공동체와 성도들의 관계 속에서 다른 문화와 종교적 배경을 가진 부모에게 익숙한 학교의 건물과 분위기는 학교를 선택하는 과정에서 매우 결정적이다. 교사의 전문적인 정체성과 학생의 종교적 정체성은 다원적인 환경에서 발전한다. 우리의 질문은 교사의 규범적 전문주의가 의미하는 바이다. 그러나 최근에 가정과 학교에서 다문화성은 부모와 교사들에게 주도적이다. 신앙 공동체와 성도들의 관계 속에서 다른 문화와 종교적 배경을 가진 부모에게 익숙한 학교의 건물과 분위기는 학교를 선택하는 과정에서 매우 결정적이다. 교사의 전문적인 정체성과 학생의 종교적 정체성은 다원적인 환경에서 발전한다. 우리의 질문은 교사의 규범적 전문주의가 의미하는 바이다.

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심리적 계약 위반이 OS이용자의 배신 행동에 미치는 영향: 윈도우 XP 기술적 지원서비스 중단 사례 (The Effects of Psychological Contract Violation on OS User's Betrayal Behaviors: Window XP Technical Support Ending Case)

  • 이은곤
    • Asia pacific journal of information systems
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    • 제24권3호
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    • pp.325-344
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    • 2014
  • Technical support of Window XP ended in March, 8, 2014, and it makes OS(Operating System) users fall in a state of confusion. Sudden decision making of OS upgrade and replacement is not a simple problem. Firms need to change the long term capacity plan in enterprise IS management, but they are pressed for time and cost to complete it. Individuals can not help selecting the second best plan, because the following OSs of Window XP are below expectations in performances, new PC sales as the opportunities of OS upgrade decrease, and the potential risk of OS technical support ending had not announced to OS users at the point of purchase. Microsoft as the OS vendors had not presented precaution or remedy for this confusion. Rather, Microsoft announced that the technical support of the other following OSs of Wndow XP such as Window 7 would ended in two years. This conflict between OS vendor and OS users could not happen in one time, but could recur in recent future. Although studies on the ways of OS user protection policy would be needed to escape from this conflict, few prior studies had conducted this issue. This study had challenge to cautiously investigate in such OS user's reactions as the confirmation with OS user's expectation in the point of purchase, three types of justice perception on the treatment of OS vendor, psychological contract violation, satisfaction and the other betrayal behavioral intention in the case of Window XP technical support ending. By adopting the justice perception on this research, and by empirically validating the impact on OS user's reactions, I could suggest the direction of establishing OS user protection policy of OS vendor. Based on the expectation-confirmation theory, the theory of justice, literatures about psychological contract violation, and studies about consumer betrayal behaviors in the perspective of Herzberg(1968)'s dual factor theory, I developed the research model and hypothesis. Expectation-confirmation theory explain that consumers had expectation on the performance of product in the point of sale, and they could satisfied with their purchase behaviors, when the expectation could have confirmed in the point of consumption. The theory of justice in social exchange argues that treatee could be willing to accept the treatment by treater when the three types of justice as distributive, procedural, and interactional justice could be established in treatment. Literatures about psychological contract violation in human behaviors explains that contracter in a side could have the implied contract (also called 'psychological contract') which the contracter in the other side would sincerely execute the contract, and that they are willing to do vengeance behaviors when their contract had unfairly been broken. When the psychological contract of consumers had been broken, consumers feel distrust with the vendors and are willing to decrease such beneficial attitude and behavior as satisfaction, loyalty and repurchase intention. At the same time, consumers feel betrayal and are willing to increase such retributive attitude and behavior as negative word-of-mouth, complain to the vendors, complain to the third parties for consumer protection. We conducted a scenario survey in order to validate our research model at March, 2013, when is the point of news released firstly and when is the point of one year before the acture Window XP technical support ending. We collected the valid data from 238 voluntary participants who are the OS users but had not yet exposed the news of Window OSs technical support ending schedule. The subject had been allocated into two groups and one of two groups had been exposed this news. The data had been analyzed by the MANOVA and PLS. MANOVA results indicate that the OSs technical support ending could significantly decrease all three types of justice perception. PLS results indicated that it could significantly increase psychological contract violation and that this increased psychological contract violation could significantly reduce the trust and increase the perceived betrayal. Then, it could significantly reduce satisfaction, loyalty, and repurchase intention, and it also could significantly increase negative word-of-month intention, complain to the vendor intention, and complain to the third party intention. All hypothesis had been significantly approved. Consequently, OS users feel that the OSs technical support ending is not natural value added service ending, but the violation of the core OS purchase contract, that it could be the posteriori prohibition of OS user's OS usage right, and that it could induce the psychological contract violation of OS users. This study would contributions to introduce the psychological contract violation of the OS users from the OSs technical support ending in IS field, to introduce three types of justice as the antecedents of psychological contract violation, and to empirically validate the impact of psychological contract violation both on the beneficial and retributive behavioral intentions of OS users. For practice, the results of this study could contribute to make more comprehensive OS user protection policy and consumer relationship management practices of OS vendor.