• Title/Summary/Keyword: Serialization

Search Result 42, Processing Time 0.022 seconds

An Optimistic Concurrency Control supports Update Operations for Mobile Transactions (이동 환경에서 갱신 연산을 지원하는 낙관적 동시성 제어 방법)

  • 김치연;배석찬
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.6 no.8
    • /
    • pp.1153-1160
    • /
    • 2002
  • So far, the main applications of mobile client are querying data. However, we need a new mechanism to update data at a mobile client as mobile systems are advanced and extended. So, we present a optimistic concurrency control to schedule mobile transactions may include update operations.'rho read-only transactions can be terminated without sending information to a server, and update transactions are terminated by validating at a server. In our method, we can reduce the additional aborts by using a timestamp ordering and serialization graph test mechanism rather than using only conflict information between concurrent transactions.

Implementation of SOAP Client in U Programming Environment (nML 프로그래밍 환경에서 SOAP 클라이언트 구현)

  • 권오경;한태숙
    • Journal of KIISE:Software and Applications
    • /
    • v.30 no.1_2
    • /
    • pp.164-172
    • /
    • 2003
  • Web service implementations are now rapidly growing. Web services are easily achieved by XML messaging for most programming languages. Applications usually utilize web services through APIs tied to a specific implementation of SOAP. nML is a dialect of SML and OCaml made in ROPAS. The soaptype type in nML is defined for the value of SOAP encoding. SOAP encoding specification defines rules for serialization of a graph of typed objects using XML Schema. XML Schema validates XML SOAP value. The soaptype type is encoded to XML and decoded from XML. It is necessary to guarantee safe encoding and decoding. So, the definitions for element and type definition in XML Schema are specified by element type and typeinfo type, which include the part of the definitions of XML Schema specification.

A Study on Drug Traceability in Pharmaceutical Supply Chain (제약 공급망에서 의약품 유통 이력추적에 관한 연구)

  • Choi, Yong-Jung;Jung, Sang-Yun
    • Journal of the Korea Society of Computer and Information
    • /
    • v.20 no.2
    • /
    • pp.197-208
    • /
    • 2015
  • Pharmaceutical companies over the world are exposed to risks of lessened sales and negative impact on corporate image due to circulation of counterfeit drugs, which eventually threatens safety of patients. thus, in order to eradicate distribution of counterfeit drugs, many countries are taking initiatives to legalize and set serialization through e-Pedigree, which is based on RFID technology or barcode system to track and trace distribution of drugs from point of manufacturing to usage. therefore, this study contemplates domestic and international management system of medical drugs and suggests application methods of e-Pedigree based on RFID technology that promotes safety of patients and distribution of drugs.

Design of a 2.5 Gbps CMOS optical transmitter with 10:1 serializer using clock generation method (Reference clock 생성기를 이용한 10:1 데이터 변환 2.5 Gbps 광 송신기 설계)

  • Kang, Hyung-Won;Kim, Kyung-Min;Choi, Young-Wan
    • 한국정보통신설비학회:학술대회논문집
    • /
    • 2005.08a
    • /
    • pp.159-165
    • /
    • 2005
  • The proposed optical transmitter is composed of FF(flip flop) , PLL (phase locked loop), reference clock generator, serializer and LD driver 10x250 Mb/s data arrays are translated to the 2.5 Gb/s data signal by serializer. In this case, 1 data bus is allocated usually as a reference clock for synchronization. In this proposed optical transmitter, 125 MHz reference clock is generated from 10x250 Mb/s data arrays by reference clock generator. From this method. absent of reference clock bus is available and more data transmission become possible. To achieve high speed operation, the serializer circuit is designed as two stacks. For 10:1 serialization, 10 clocks that have 1/10 lambda differences is essential, so the VCO (voltage controlled oscillator) composed of 10 delay buffers is designed. PLL is for runing at 250 MHz, and dual PFD(phase frequency detector) is adopted for fast locking time. The optical transmitter is designed by using 0.35 um CMOS technology.

  • PDF

Article Serialization: Effects of the Heat-treatment on the Nutritional Quality of Milk (우유의 열처리가 우유품질과 영양가에 미치는 영향을 연재하면서)

  • Oh, Sejong
    • Journal of Dairy Science and Biotechnology
    • /
    • v.34 no.3
    • /
    • pp.199-202
    • /
    • 2016
  • Processing methods of heat treatment in milk has been developed to increase safety for the consumer by destroying pathogens that may be found in milk. Commercial pasteurization of milk in the market started in the late 1800s in Europe and in the early 1900s in the United States. In 1962, it became a requirement in Korea that all milk for sale should be treated by heat. Nowadays, heat treatment (pasteurization or sterilization) became mandatory for all milk products sold in all over the world. However, since 1987, there was a big debate about the heat-treatment of milk. Korea Society of Dairy Science and Technology (KSDST) complied the 10 scientific articles of milk heat-treatment into the book which titled "Effects of the heat-treatment on the nutritional quality of milk". Almost several hundred copies had been distributed at the symposium KSDST in 1989. Currently, no one was able to find these articles in anywhere including library etc. Thus, author decided to re-write that books in serials because these articles should be pass on their knowledge of milk science to the next generation of milk research.

A Deadline_driven CPU Power Consumption Management Scheme of the TMO-eCos Real-Time Embedded OS (실시간 임베디드 운영체제 TMO-eCos의 데드라인 기반 CPU 소비 전력 관리)

  • Park, Jeong-Hwa;Kim, Jung-Guk
    • Journal of KIISE:Computing Practices and Letters
    • /
    • v.15 no.4
    • /
    • pp.304-308
    • /
    • 2009
  • This paper presents the deadline driven CPU-Power management scheme for the Real-Time Embedded OS: named TMO-eCos. It used the scheduling scenarios generated by a task serialization technique for hard real- time TMO system. The serializer does a off-line analysis at design time with period, deadline and WCET of periodic tasks. Finally, TMO-eCos kernel controls the CPU speed to save the power consumption under the condition that periodic tasks do not violate deadlines. As a result, the system shows a reasonable amount of power saving. This paper presents all of these processes and test results.

Artistic expression in fashion film of Prada (Prada 패션 필름에 나타난 예술적 표현)

  • Beom, Seo Hee;Yim, Eunhyuk
    • The Research Journal of the Costume Culture
    • /
    • v.26 no.6
    • /
    • pp.888-898
    • /
    • 2018
  • The purpose of this study was to review and establish the two concepts of art film and artistic expression in Prada fashion films, through a literature review of domestic and international case studies, as a form of luxury branded content, Prada fashion films are considered to artistic film genre. For the study, aesthetic expression in art films as discussed in the previous research was divided into four types. The study method was to review fashion / art films from the founding of YouTube, specially, works that used digital images from Thunder Perfect Mind, which was introduced in Prada in 2005, to Nylon Farm in 2018, stylistic features were searched by film. In addition, for this study, fashion film was analyzed based on the typology of art films. The following conclusions regarding artistic expression were drawn from this study : First, the Prada fashion films represent a transition to advanced art through a conceptual approach. Second, the causal relationships personality psychology can be cited through the disturbed and fragmented narrative lines. Third, the films help people identity Prada's aesthetics by humanizing the luxury brand. Fourth, the films are a feature of serialization.

A Fault Tolerant Transaction Management in Multidatabase Systems (멀티 데이타베이스 시스템에서 고장을 허용하는 트랜잭션 관리)

  • Sin, Seong-Cheol;Hwang, Bu-Hyeon
    • The Transactions of the Korea Information Processing Society
    • /
    • v.1 no.2
    • /
    • pp.172-183
    • /
    • 1994
  • In the multidatabase systems(MDBS), local autonomy and global consistency are important issues. Global consistency could be maintained by a global concurrency control algorithm and a global recovery algorithm. In this thesis, we propose a global concurrency control algorithm to ensure local autonomy and to guarantee global serializability, and a global recovery algorithm which is possible to recover the multudatabase from any failures. The proposed global concurrency control algorithm uses bottom-up approach, based on three-level transaction processing model. It can produce a local history that the execution order of subtransactions is identical to their serialization order by using dummy-operations in the server when an indirect conflict is caused between subtransactions due to local transactions. At the global module, it can efficiently validate global serializability of global transactions by checking global serializability only for the global transactions which conflict with each other.

  • PDF

A Study on the Eventual Aspects of Contemporary Space Design based on the Subject (주체에 기초한 현대 공간 디자인의 사건성에 관한 연구)

  • Kim, Suk-Young;Kim, Moon-Duck
    • Korean Institute of Interior Design Journal
    • /
    • v.20 no.3
    • /
    • pp.98-109
    • /
    • 2011
  • To interpret a change of discourse can be a method to understand architectural space in progress. With this idea, features of modern age which motivated sense of the contemporary were considered in this study and subsequently characteristics of contemporary space differentiated from the modern were researched. First of all, features of subject which provided a base of modern thoughts were contemplated. The word 'modern' is used in wide and various terms but basically its core conception consists of reason and universal rationality. The subject of the modem age has vision-centric features just like an ideal representation principle of perspective. Given the fact, it was confirmed that a position to become a right subject, that is, a position controlled by reason existed and that it was to guarantee subject a truth. However, the contemporary subject keeps changing with a purpose of escaping from modern characteristics. It presents a tendency to escape from rationalism of the modern age and Platonism of the ancient Greece which established a basis of western ideology. The subject-centered ideas came to focus on the structure and relationship firmed fundamentally in deep inside of subject. The contemporary subject which escaped from the stiffen ideas bears a meaning through events taking place on immanence surface and serialization. Also, the contemporary architectural space is considered to go abreast with the change and trend. In conclusion, this study proved that features of event-oriented architectural space based on the changing contemporary subject appear as process-based space, user-participated space and individual-cognition space and the like.

Device Adapter Model based on Dynamic Management Module for u-Health gateway (u-헬스 게이트웨이를 위한 동적 관리 모듈 기반의 디바이스 어댑터 모델)

  • Kim, Jong-Tak;Song, Si-Yun;Hwang, Hee-Jeong
    • Journal of Internet Computing and Services
    • /
    • v.11 no.2
    • /
    • pp.41-48
    • /
    • 2010
  • It is essential to guarantee a smooth communication and data exchange in a PHD(Personal Healthcare Device) network for applications providing U-health services. In spite of that, most of PHDs are heterogeneous, so the heterogeneity of their protocols makes it difficult to develop an integrated gateway sending sensed healthcare data to U-health service providers. To solve this problem, we suggest the design and implementation of a device adapter model based on dynamic managed module in this paper. Our model were implemented to work on the OSGi-based gateway middleware and to have interoperability in connection with the HL7 system that is the standard of the Healthcare Information systems. In addition, our model has an architecture supporting a communication based on the object serialization in order to provide extensibility in the functional aspect of applications. Through the experiment on a test-bed which is an implementation of the device adapter module for electrocardiogram and blood-pressure/blood-sugar device having one channel, we have confirmed the accuracy of sensing and sending data.