• 한국마이크로전자및패키징학회:학술대회논문집
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• 한국마이크로전자및패키징학회 2004년도 추계 기술심포지움 초록집
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• pp.3-4
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• 2004

A flexible Packaging scheme, which embedded chip packaging, has been developed using a thinned silicon chip. Mechanical characteristics of thinned silicon chips are examined by bending test and finite element analysis. Thinned silicon chips ($t<50{\mu}m$) are fabricated by chemical etching process to avoid possible surface damages on them. These technologies can be use for a real-time monitoring of blood pressure. Our research targets are implantable blood pressure sensor and its telemetric measurement. By winding round the coronary arteries, we can measure the blood pressure by capacitance variation of blood vessel.

• 한국환경복원기술학회지
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• 제16권4호
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• pp.115-124
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• 2013

This study was conducted to make a biotop planning and construct 3 types of biotop by each site conditions. Three sites of different types in ecological and scenery conservation area of the Dong-gang river were selected by expert brain-storming process and constructed terrestrial biotops and aquatic biotops. Targets of 3 sites were set up such as constructing a habitat for Kaloula borealis and an ecological education place, building a terrestrial biotopes and monitoring the natural vegetation succession, and constructing a habitat for Luciola unmunsana Doi. The study results can be applied hereafter to ecological restoration projects, after construction of habitat, the priority should be prepare measures of monitoring and maintenance, hereafter continuous study on ecological restoration should be performed actively through construction of biotope and wild animals and plants habitat.

• 한국측량학회지
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• 제15권2호
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• pp.185-193
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• 1997

While close range photogrammetry has been widely applied for static deformation analysis, video cameras have many characteristics that make them the sensors of choice for dynamic analysis of rapidly changing situations. They also have limitations. The aim of this research is to explore the potential of a video system for monitoring dynamic objects. A pilot system consists of two camcorders, VCR, and PC with frame grabber. To estimte the performance of this system for moving objects, a car was imaged covering several phases when starting to drive. The sequential images of a moving car were recorded on VCR. 15 images per second were digitized in an off-line mode by frame grabber. The image coordinates of targets attached to the rear bumper of a car were acquired by IDRISI, and the object coordinates were derived based on DLT. This research suggests that home video cameras, PC, and photogrammetric principles are promising tools for monitoring of the moving objects and vibrations as well as other time dependent situations.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 하계종합학술대회 논문집(5)
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• pp.81-84
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• 2001

This paper presents a potable bio-signal measurement system using Bluetooth for the 24-hours continuous health state monitoring of the elderly and the disabled. The measurement system has the functions of acquisition of various bio-signals, wireless data transmission and adjustment of parameters such as gain and cut-off frequency. This measurement system is designed according to the international specifications of the recommendation of AAMI (Association for the Advancement of Medical Instrumentation). The design targets of the developing system about volume and power consumption are 20x30x5mm$^3$ and 8mW.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2009년도 제38회 동계학술대회 초록집
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• pp.137-137
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• 2010

Copper electroplating is a very popular and important technology for depositing high-quality conductor interconnections, especially in through silicon via (TSV). As this advanced packaging technique developing, a mass of copper and chemical solution are used, so attention to these chemical materials into the utilization and costs can not be ignored. An economical and practical real-time chemical solution monitoring has not been achieved yet. Either Red-green-blue (RGB) or optical emission spectroscopy (OES) color sensor can successfully monitor the color condition of solution during the process. The reaction rate, uniformity and quality can map onto the color changing. Hidden Semi Markov model (HSMM) can establish mapping from the color change to upper indicators, and artificial neural network (ANN) can be integrated to comprehensively determine its targets, whether the solution inside the container can continue to use.

• 대한원격탐사학회지
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• 제20권3호
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• pp.207-214
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• 2004

This study focused on providing a methodology to utilize temporal information obtained from remotely sensed data for monitoring a wide variety of targets on the earth's surface. Generally, a methodology in understanding of global changes is composed of mapping, quantifying, and monitoring changes in the physical characteristics of land cover. The selected processing and analysis technique affects the quality of the obtained information. In this research, feature extraction methodology is proposed based on segmentation. It requires a series of processing of multitempotal images: preprocessing of geometric and radiometric correction, image subtraction/thresholding technique, and segmentation/thresholding. It results in the mapping of the change-detected areas. Here, the appropriate methods are studied for each step and especially, in segmentation process, a method to delineate the exact boundaries of features is investigated in multiresolution framework to reduce computational complexity for multitemporal images of large size.

• 지질공학
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• 제17권4호
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• pp.567-576
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• 2007

디지털 영상을 통한 터널 내공의 3차원 절대변위 계측의 현장 적용성 검토를 위해 OO터널 현장에 계획된 내공변위 계측단면 상에 위치한 광파 타겟의 변위를 측정하고자 하였다. 디지털 영상 계측을 위한 3차원 입체모델 생성을 위해 측정위치마다 3개의 측선까지의 타겟만 고려하였다. 하나의 입체모델의 생성을 위해서 각 위치에서 3장 이상의 디지털 영상을 획득하여 입체모델을 구성하였으며, 마지막 2개 측선에서의 6개 타겟(천단, 좌우 측벽)을 계속 중첩시켜가며 다음 입체 모델을 구성하여 6개 이상의 정합점이 두 입체모델에서 공유될 수 있도록 하였다. 광파 계측과 디지털 영상계측을 통한 터널 시공 중 암반의 3차원 절대변위 계측 방법을 비교하기 위해 10회에 걸쳐 디지털 영상 계측과 광파 계측을 동일한 구간에 동시에 적용하였다. 각 방법을 사용한 계측에 소요되는 시간과 계측결과를 비교하였다.

• 정보처리학회논문지D
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• 제13D권1호
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• pp.139-146
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• 2006

본 논문에서는 분산 트랜잭션 워크플로우 모니터링 시스템의 설계 및 구현에 관하여 기술한다. 워크플로우 인스턴스들의 실행 상태 관리를 주요 목적으로 하는 전통적인 워크플로우 시스템의 모니터링 기능은 워크플로우의 초대형화와 트랜잭션화를 특징으로 하는 분산형 트랜잭션 워크플로우 시스템에서는 워크플로우의 처리 상태 관리뿐만 아니라 구조적인 정보의 수집, 통계 정보 제공, 사용자들의 처리 상태 정보 등과 같은 다양한 부가적인 정보 처리 및 관리 기능을 제공하는 분산형 모니터링 서비스를 필요로 한다. 본 논문에서는 이러한 분산형 트랜잭션 워크플로우 시스템에서 필수적으로 요구되는 새로운 워크플로우 모니터링의 특징을 확장 정의하고, 이를 지원하는 점 기반의 분산 트랜잭션 워크플로우 모니터링 시스템의 상세 설계 및 이의 구현 방안을 소개한다.

• Journal of Biosystems Engineering
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• 제41권4호
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• pp.396-407
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• 2016

Background: Although hyperspectral imaging was originally introduced for military, remote sensing, and astrophysics applications, the use of analytical hyperspectral imaging techniques has been expanded to include monitoring of agricultural crops and commodities due to the broad range and highly specific and sensitive spectral information that can be acquired. Combining hyperspectral imaging with remote sensing expands the range of targets that can be analyzed. Results: Hyperspectral imaging technology can rapidly provide data suitable for monitoring a wide range of plant conditions such as plant stress, nitrogen status, infections, maturity index, and weed discrimination very rapidly, and its use in remote sensing allows for fast spatial coverage. Conclusions: This paper reviews current research on and potential applications of hyperspectral imaging and remote sensing for outdoor field monitoring of agricultural crops. The instrumentation and the fundamental concepts and approaches of hyperspectral imaging and remote sensing for agriculture are presented, along with more recent developments in agricultural monitoring applications. Also discussed are the challenges and limitations of outdoor applications of hyperspectral imaging technology such as illumination conditions and variations due to leaf and plant orientation.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2022년도 추계학술대회
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• pp.588-590
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• 2022

선박에 대한 위치와 자세 공유는 다양한 변화가 있는 해상환경에서 안전한 항해와 효율적 운용을 도모하기 위한 아주 중요한 사항이다. 이를 위한 기술로 AIS(Automatic Identification System)가 대표적으로 활용이 되고 있다. 선박내 통신규약의 일종인 NMEA-0183을 통해 자함(ownship) 및 타선의 정보를 수집하여 항행에 큰 도움을 준다. 더 나아가 이 기술은 지상의 관제소 및 항공 영역에까지 공유되어 해상의 안전한 항행과 사고예방 및 대처용으로도 적극적으로 활용되고 있다. 이러한 AIS의 장점으로 인해 국제해사기구에 의해 국제여객선과 300톤 이상의 선박에 대해서는 AIS 탑재가 의무화된 상황이다. AIS는 장거리 송출을 위해 VHF(Very High Frequency) 밴드 영역을 사용하며, 이러한 특성으로 인해 타선의 정보를 모니터링하는 시스템에서는 필요 이상의 타깃들의 정보가 수집되고 표출이 되는 상황이다. 본 연구에서는 모니터링 시스템의 표출영역을 고려한 효율적인 AIS 데이터 추출 방안을 제시한다. 아울러, 이를 통해 결과적으로 모니터링 시스템의 처리 및 네트워크 부하를 감소시키고 타 체계의 타깃 정보와의 형평성 있는 표출을 유도한다.