• 한국무역상무학회:학술대회논문집
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• 한국무역상무학회 2004년도 제32회 산학협동 세미나
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• pp.79-104
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• 2004

The buyer must pay the price under the contract and must take delivery of the goods of contract. The buyer's obligation to pay the price includes taking such steps and such formalities under the contract. The remedial system of the rights of the seller is easier than that of the buyer, for the obligations of the former are less complicated. The seller has the right to avoid a contract provided two conditions are fulfilled : (a) the buyer must have committed a fundamental breach of contract, or (b) the additional period for performance set by the seller in the case of non-performance must have expired. A decision is more difficult to take in the case of a delay where there is no fixed-term contract, to clarify the situation the seller may set a Nachfrist. It is essential that the contracting parties in Korea should understand the provisions of CISG.

• Clinical and Experimental Pediatrics
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• 제50권2호
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• pp.127-131
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• 2007

Fever of unknown origin (FUO) has been a convenient term used to classify patients who warrant a particular systemic approach to diagnostic evaluation and management. The greatest clinical concern in evaluating FUO is identifying patients whose fever has a serious or life-threatening cause when a delay in diagnosis could jeopardize successful intervention. Thorough history and complete physical examination are critical to uncover the etiologic diagnosis. Most cases of FUO in children are caused by atypical presentations of common diseases rather than by typical manifestations of rare disorders. Selection of diagnostic tests and speed of investigation should be guided by a knowledge of the disease severity, patient age, epidemiologic and geographic information, and any positive findings from a detailed history and physical examination. The three most common causes of FUO in children are infectious diseases, connective tissue diseases, and malignancy. In general, the prognosis of FUO in children is better than that of adults. Although the outcome is dependent on the primary disease process, fever abates spontaneously in most cases in whom the cause of fever remains unclear.

• 한국구조물진단유지관리공학회 논문집
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• 제5권1호
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• pp.188-194
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• 2001

A reinforced concrete structure is complex structure that works as one body with bonding role of steel bar and concrete. The bonding action between steel bar and concrete makes possible the compound structure. The transmission of mutual strength of the steel bar with concrete in structure is determined by the bonding characteristic of steel bar and concrete surface. But the efficiency of bonding characteristic of steel bar is Questionable by the corrosion cause by the delay construction term, the wrong management, etc. So this study investigate bonding characteristic of reinforced concrete using pull-out test method which steel bar removed rust and the principal variables of this study are concrete compression strength and the degree of corrosion. The result showed that bonding strength tend to increase when removed rust of steel bar whereas it tend to decrease when not removed rust.

• 대한전자공학회논문지
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• 제22권6호
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• pp.13-18
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• 1985

고밀도 PLA(Programmable Logic Array) layout의 생성, 간소화 및 검증을 자동화한 일련의 유용프로그램을 개발하였다. 이에는 논리 함수로부터 진리표를 만들어 내는 프로그램. 논리 간소화 프로그램 PLA재배열 프로그랭. stick diagram을 그릴 구 있는 화일을 만들어 내는 프로그램, dynamic CMOS PLA의 layout 생성 프로그램, 그리고 bipartite row folded CMOS PLA layout 생성 프로그램이 포함된다. 크기의 최소화는 주로 논리 간소화 프로그램과 bipartlte row folding 프로그램에 의해수행되며, 최대지연시간은 재배열 프로그램에 의해 작아진다. 자동으로 생성된 layout에 대한 정보는 CIF(Caltach Int-ermidate Form)로 저장된다. 각 프로그램은 C언어로 작성되었으며, VAX-l1/750 (UNIX)에서 수행되었다.

• Journal of Information Processing Systems
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• 제15권5호
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• pp.1231-1242
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• 2019

This paper presents a two-dimensional attention-based long short-memory (2D-ALSTM) model for stock index prediction, incorporating input attention and temporal attention mechanisms for weighting of important stocks and important time steps, respectively. The proposed model is designed to overcome the long-term dependency, stock selection, and stock volatility delay problems that negatively affect existing models. The 2D-ALSTM model is validated in a comparative experiment involving the two attention-based models multi-input LSTM (MI-LSTM) and dual-stage attention-based recurrent neural network (DARNN), with real stock data being used for training and evaluation. The model achieves superior performance compared to MI-LSTM and DARNN for stock index prediction on a KOSPI100 dataset.

• International Journal of Computer Science & Network Security
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• 제24권7호
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• pp.31-44
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• 2024

The inverted index is combination of the keywords and posting lists associated for indexing of document. In modern age excessive use of technology has increased data volume at a very high rate. Big data is great concern of researchers. An efficient Document indexing in big data has become a major challenge for researchers. All organizations and web engines have limited number of resources such as space and storage which is very crucial in term of data management of information retrieval system. Information retrieval system need to very efficient. Inverted indexing technique is introduced in this research to minimize the delay in retrieval of data in information retrieval system. Inverted index is illustrated and then its issues are discussed and resolve by implementing the scalable inverted index. Then existing algorithm of inverted compared with the naïve inverted index. The Interval list of inverted indexes stores on primary storage except of auxiliary memory. In this research an efficient architecture of information retrieval system is proposed particularly for unstructured data which don't have a predefined structure format and data volume.

• 인지과학
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• 제23권2호
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• pp.225-248
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• 2012

시각단기재인 과정에 대한 유사성 합산 모형은 단기기억에 저장된 기억 표상들과 재인검사 자극간 유사성의 합산치가 재인의사결정을 좌우한다고 제안한다[1]. 본 연구는 수직 공간주파수를 달리하는 두 Gabor 자극에 대한 공간주파수 재인 과제에서 과제와 무관한 기억자극의 위치 정보가 재인 반응에 미치는 영향을 조사하였다. 실험의 매 시행에서 참가자는 시야 좌우에 제시된 서로 다른 두 Gabor 자극의 공간주파수를 기억하고 약 1초 뒤에 제시된 재인검사 자극과의 동일성 여부를 보고하였다. 재인검사 자극은 기억 항목과 동일하거나 기억된 항목을 기준으로 공간주파수 차원에서 1 또는 4 최소식별단위 만큼 표적과 유사한 미끼자극이었다. 또한 재인검사항목이 제시되는 위치는 재인이 요구된 기억항목의 위치를 기준으로 동일하거나 혹은 반대편 시야 위치에 제시되었으며, 참가자는 검사자극의 위치변화를 무시하고 공간주파수 차원의 재인 반응만을 요구받았다. 실험 결과 미끼자극에 대한 오인반응(false recognition)은 기억항목과 미끼자극 간 유사성 합산치가 커짐에 따라 증가했다. 아울러 과제와는 무관하게 검사항목의 위치 변화가 있었던 조건의 경우 없었던 조건에 비해 이러한 오인 반응의 빈도가 감소한 것으로 나타났다. 과제 무관련 위치 변화에 의한 미끼자극에 대한 오인 반응의 감소는 재인과제의 요구와는 관계없이 무관련 세부특징이 과제 관련 세부특징에 대한 재인 반응에 영향을 미칠 수 있음을 보여주며, 시각단기기억에 저장되는 정보가 세부특징들의 독립적 표상이 아닌 세부특징 간 공고한 결합에 의해 표상될 가능성을 시사한다.

• JSTS:Journal of Semiconductor Technology and Science
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• 제17권3호
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• pp.411-424
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• 2017

An all-digital delay-locked loop (DLL) for a mobile memory interface, which runs at 0.11-2.5 GHz with a phase-shift capability of $180^{\circ}$, has two internal DLLs: a global DLL which uses a time-to-digital converter to assist fast locking, and shuts down after locking to save power; and a local DLL which uses a phase detector with an adaptive phase sampling window (WPD) to reduce jitter accumulation. The WPD in the local DLL adjusts the width of its sampling window adaptively to control the loop bandwidth, thus reducing jitter induced by UP/DN dithering, input clock jitter, and supply/ground noise. Implemented in a 65 nm CMOS process, the DLL operates over 0.11-2.5 GHz. It locks within 6 clock cycles at 0.11 GHz, and within 17 clock cycles at 2.5 GHz. At 2.5 GHz, the integrated jitter is $954fs_{rms}$, and the long-term jitter is $2.33ps_{rms}/23.10ps_{pp}$. The ratio of the RMS jitter at the output to that at the input is about 1.17 at 2.5 GHz, when the sampling window of the WPD is being adjusted adaptively. The DLL consumes 1.77 mW/GHz and occupies $0.075mm^2$.

• Journal of Information Processing Systems
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• 제12권2호
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• pp.196-213
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• 2016

System Architecture Evolution (SAE) with Long Term Evolution (LTE) has been used as the key technology for the next generation mobile networks. To support mobility in the LTE/SAE-based mobile networks, the Proxy Mobile IPv6 (PMIP), in which the Mobile Access Gateway (MAG) of the PMIP is deployed at the Serving Gateway (S-GW) of LTE/SAE and the Local Mobility Anchor (LMA) of PMIP is employed at the PDN Gateway (P-GW) of LTE/SAE, is being considered. In the meantime, the Host Identity Protocol (HIP) and the Locator Identifier Separation Protocol (LISP) have recently been proposed with the identifier-locator separation principle, and they can be used for mobility management over the global-scale networks. In this paper, we discuss how to provide the inter-domain mobility management over PMIP-based LTE/SAE networks by investigating three possible scenarios: mobile IP with PMIP (denoted by MIP-PMIP-LTE/SAE), HIP with PMIP (denoted by HIP-PMIP-LTE/SAE), and LISP with PMIP (denoted by LISP-PMIP-LTE/SAE). For performance analysis of the candidate inter-domain mobility management schemes, we analyzed the traffic overhead at a central agent and the total transmission delay required for control and data packet delivery. From the numerical results, we can see that HIP-PMIP-LTE/SAE and LISP-PMIP-LTE/SAE are preferred to MIP-PMIP-LTE/SAE in terms of traffic overhead; whereas, LISP-PMIP-LTE/SAE is preferred to HIP-PMIP-LTE/SAE and MIP-PMIP-LTE/SAE in the viewpoint of total transmission delay.

• Composites Research
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• 제13권1호
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• pp.89-97
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• 2000

광섬유센서를 이용한 복합적층판의 피로손상 감지 및 진동측정, 그리고 스틸 보에 대한 충격위치 검출에 관한 연구가 수행되었다. 피로과정중의 신호는 복합재료 내에 삽입된 광섬유와 표면에 부착한 광강도형 광섬유센서, 그리고 스트레인게이지로부터 동시에 측정되었다. 진동감지 실험은 복합재료 보의 표면에 광섬유센서를 부착하여 자유진동 및 강제진동 신호를 취득하였다. 충격위치 검출에 관한 실험에서 충격위치는 충격에 의해 발생된 구조물의 진동이 두 센서에 도달하는 시간의 차를 이용하여 구할 수 있다. 광강도형 광섬유센서를 이용하여 반복 피로 신호를 잘 취득할 수 있었으며 스트레인게이지에 비하여 피로저항성이 우수함이 확인되었다. 광섬유센서는 갭센서와 동일하게 진동신호를 감지하였고 구조물에 가해진 충격위치를 비교적 정확히 검출할 수 있었다.