• Title/Summary/Keyword: Device identification

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Short-Wave Infrared Fluorescence-Guided Surgery Using Indocyanine Green in a Dog with a Cutaneous Mast Cell Tumor

  • Su-Hyeon Kim;Sungin Lee
    • Journal of Veterinary Clinics
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    • v.39 no.6
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    • pp.395-399
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    • 2022
  • A 6-year-old spayed, female golden retriever dog was presented with a skin mass on the dorsal region of the right carpus. The cytology result of the region revealed characteristics of mast cell tumors (MCTs). Short wave-infrared fluorescence-guided surgery using Indocyanine green (ICG) was performed to determine the surgical margin of the tumor. ICG was injected intravenously 24 hours before the surgery and the patient was hospitalized and carefully monitored. During the surgery, ICG fluorescence-based surgery was performed to identify the tumor and the surgical margin. The tumor was visible, and the skin mass was resected using NIR device for the guidance of the surgical margin of the tumor. Once the resection was complete, the surgical site was again inspected with SWIR fluorescence imaging to identify residual tumor cells. The resected tumor, using ICG navigation, was classified as low-grade cutaneous MCT and the margin was complete on the histopathological result. We report herein a case of resection of a cutaneous MCT in a dog using SWIR fluorescence imaging ICG which can be potentially used for the identification of tumors and evaluation of the surgical margin for complete resection.

Allocation of the skipper's attention depending on the longline fishing process of the coastal composite fishing vessel (연안복합어선의 연승조업과정에 따른 선장의 주의 배분)

  • KIM, Min-Son;HWANG, Bo-Kyu
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.58 no.2
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    • pp.175-184
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    • 2022
  • This study analyzed the allocation of the skipper's attention during fishing operation in the wheelhouse of a Korean coastal composite fishing vessel by using video observation. To summarize the results, the ratio of lookout, radar and GPS monitoring, which is essential for prevention of collision at sea, was significantly lower than that of other fishing operation due to the attention concentration on the work place during hauling line. In order to reduce exposure to risk of collisions due to concentration of attention to certain tasks such as line hauling, it is necessary to develop an alert system that can notify the approach of other ships or obstruction throughout the ship using information from radar or the automatic identification system. In addition, the order of attention allocation to devices and facilities obtained in this study is expected to be used as basic data for device or facility layout based on the principle of usage frequency in designing wheelhouse for coastal composite fishing vessels in the future.

CONSTRUCTION MATERIAL MANAGEMENT USING SMART MOBILE COMPUTING

  • Kwang-Pyo Lee;Hyun-Soo Lee;Moonseo Park
    • International conference on construction engineering and project management
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    • 2011.02a
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    • pp.221-228
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    • 2011
  • As construction works have become larger and more complex, improving productivity by introducing Information Technology (IT) is pursued and more effective construction management is needed in construction industry. In this circumstance, many different kinds of project management system is being introduced, and various IT technologies are applied such as Personal Digital Assistant (PDA), Bar Code, Radio Frequency Identification (RFID), Web Camera, and so on. However, these kinds of technologies might cause re-processing of information and ineffectiveness of project because of lack of real time information processing technology or separation between construction sites and management offices. Meanwhile, these technologies rather decrease the construction productivity except for the data saving and database function. Therefore, this research aims to develop Application that can be applied efficiently for construction material management, by understanding problems of former management system with questionnaires and extracting functions with analysis of requirements. In virtue of the construction material management Application which will be developed in this study, it will be possible to input information automatically, to process and check material information in real time, and to identify the location of necessary material. Then, the problem of separation between construction sites and management offices are solved, and as a result, more efficient management of materials in construction sites will become possible. At the same time, this study will investigate the possibility and applicability of new IT device, Smart Phone to construction sites.

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Location Error Reduction method using Iterative Calculation in UWB system (Iterative Calculation을 이용한 UWB 위치측정에서의 오차감소 기법)

  • Jang, Sung-Jeen;Hwang, Jae-Ho;Choi, Nack-Hyun;Kim, Jae-Moung
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.45 no.12
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    • pp.105-113
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    • 2008
  • In Ubiquitous Society, accurate Location Calculation of user's device is required to achieve the need of users. As the location calculation is processed by ranging between transceivers, if some obstacles exist between transceivers, NLoS(Non-line-of-Sight) components of received signal increase along with the reduction of LoS(Line-of-Sight) components. Therefore the location calculation error will increase due to the NLoS effect. The conventional location calculation algorithm has the original ranging error because there is no transformation of ranging information which degrades the ranging accuracy. The Iterative Calculation method which minimizes the location calculation error relys on accurately identifying NLoS or LoS condition of the tested channel. We employ Kurtosis, Mean Excess Delay and RMS Delay spread of the received signal to identify whether the tested channel is LoS or NLoS firstly. Thereafter, to minimize location calculation error, the proposed Iterative Calculation method iteratively select random range and finds the averaged target location which has high probability. The simulation results confirm the enhancement of the proposed method.

Construction Material Management Using Smart Mobile Computing (스마트 모바일 어플리케이션을 이용한 건설 자재 관리)

  • Lee, Kwang-Pyo;Lee, Hyun-Soo;Park, Moon-Seo;Kim, Eui-Jun
    • Korean Journal of Construction Engineering and Management
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    • v.12 no.4
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    • pp.59-69
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    • 2011
  • Construction works have become larger and more complex, improving productivity by introducing Information Technology (IT) is pursued. In this circumstance, many different kinds of project management system is being introduced, and various IT technologies are applied such as Personal Digital Assistant (PDA), Bar Code, Radio Frequency Identification (RFID), Web Camera, and so on. However, these kinds of technologies might cause reprocessing of information and ineffectiveness of project because of lack of real time information processing technology or separation between construction sites and management offices. Therefore, this research aims to develop Application that can be applied efficiently for construction material management, by understanding problems of former management system with questionnaires and extracting functions with analysis of requirements. This will be possible to input information automatically, to process and check material information in real time, and to identify the location of necessary material. Then, the problem of separation between construction sites and management offices are solved, and as a result, more efficient management of materials in construction sites will become possible.

A Secure AIS Protocol Suggestion with Analyses of the Standard AIS Protocol (표준 AIS 프로토콜 분석을 통한 보안 AIS 프로토콜 제안)

  • Lee, Jung-Su;Heo, Ouk;Kim, Jae-Hwan;Chung, Sung-Wook
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.9 no.1
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    • pp.49-57
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    • 2016
  • Recently, marine accidents such as the sinking accident Mongol freighter ship and the sinking accident of Sewol ferry in Jindo continuously happen. In order to decrease the number of these marine accidents, Korean ships are obliged to follow the AIS(Automatic Identification System) system. The AIS protocol includes all information for sailing ships. However, the standard AIS protocol does not provide any security function, In addition, it is possible to hijack the standard AIS protocol in case of using a satellite communication device called FUNcuve Dongle Pro+. Therefore, this paper analyzes weak points of the security in the standard AIS protocol. Furthermore, this paper ensures reliability by marking the MAC Address of sender and receiver for secure communication and suggests the protocol that can securely send data, using the VPN Tunnelling method. Therefore, the suggested AIS protocol provides the secure communication to the AIS protocol and protect the messages in the AIS protocol, which can serve safe voyages by decreasing the marine accidents.

Design of RFID Authentication Protocol Using 2D Tent-map (2차원 Tent-map을 이용한 RFID 인증 프로토콜 설계)

  • Yim, Geo-su
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.13 no.5
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    • pp.425-431
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    • 2020
  • Recent advancements in industries and technologies have resulted in an increase in the volume of transportation, management, and distribution of logistics. Radio-frequency identification (RFID) technologies have been developed to efficiently manage such a large amount of logistics information. The use of RFID for management is being applied not only to the logistics industry, but also to the power transmission and energy management field. However, due to the limitation of program development capacity, the RFID device is limited in development, and this limitation is vulnerable to security because the existing strong encryption method cannot be used. For this reason, we designed a chaotic system for security with simple operations that are easy to apply to such a restricted environment of RFID. The designed system is a two-dimensional tent map chaotic system. In order to solve the problem of a biased distribution of signals according to the parameters of the chaotic dynamical system, the system has a cryptographic parameter(𝜇1), a distribution parameter(𝜇2), and a parameter(𝜃), which is the constant point, ID value, that can be used as a key value. The designed RFID authentication system is similar to random numbers, and it has the characteristics of chaotic signals that can be reproduced with initial values. It can also solve the problem of a biased distribution of parameters, so it is deemed to be more effective than the existing encryption method using the chaotic system.

Changes in Body Temperature of Piglets in a Day (자돈의 일중 체온변화에 관한 연구)

  • Yi, One-Hyeon;Jeong, Wang-Yong;Lee, Sang-Cheol;Lee, Sang-Rak
    • Journal of Animal Environmental Science
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    • v.18 no.2
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    • pp.91-94
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    • 2012
  • This study was conducted to develop an algorithm for determination of abnormal body temperature in piglets through skin and core temperature database at normal condition. 5 piglets (mean BW : 46 kg) were employed for the experiment. They were adapted in the individual metabolism cage set at $22.5{\pm}2.0^{\circ}C$ of room temperature for 2 weeks before the measurement of body temperature. Ear, neck, head and subcutaneous neck temperature (as core temperature) of piglets were measured for every 1 minute during 30 consecutive days through 1mm k-type thermocouple wire and NI-devices (National Instruments Corporation, Austin, Texas, USA). Body temperature data were accumulated and integrated into the 1 day unit. Change of daily mean skin and core body temperatures in piglets were lowest at around 06:00, highest at around 14:00 and gradually decreased until the day after 06:00. Each skin temperatures were varied with the measuring site and largely depended on the room temperature changes. Established database of skin and core body temperature in piglets through this study can be applied to develop an algorithm for monitoring and determining the abnormal condition of animal by using radio frequency identification.

Generative optical flow based abnormal object detection method using a spatio-temporal translation network

  • Lim, Hyunseok;Gwak, Jeonghwan
    • Journal of the Korea Society of Computer and Information
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    • v.26 no.4
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    • pp.11-19
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    • 2021
  • An abnormal object refers to a person, an object, or a mechanical device that performs abnormal and unusual behavior and needs observation or supervision. In order to detect this through artificial intelligence algorithm without continuous human intervention, a method of observing the specificity of temporal features using optical flow technique is widely used. In this study, an abnormal situation is identified by learning an algorithm that translates an input image frame to an optical flow image using a Generative Adversarial Network (GAN). In particular, we propose a technique that improves the pre-processing process to exclude unnecessary outliers and the post-processing process to increase the accuracy of identification in the test dataset after learning to improve the performance of the model's abnormal behavior identification. UCSD Pedestrian and UMN Unusual Crowd Activity were used as training datasets to detect abnormal behavior. For the proposed method, the frame-level AUC 0.9450 and EER 0.1317 were shown in the UCSD Ped2 dataset, which shows performance improvement compared to the models in the previous studies.

A Study on KASP Analysis Based on SNP to Rapidly Identify Caviar-Producing Sturgeon Species (캐비어를 생산하는 철갑상어의 신속 종판별을 위한 SNP 기반 KASP 분석에 관한 연구)

  • Sun Hee Lee;Bo Reum Park;Hyung Il Kim;Sooyeul Cho;Kyung-Hun Son
    • Journal of Food Hygiene and Safety
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    • v.39 no.3
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    • pp.209-220
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    • 2024
  • Cavier is graded as Beluga, Osetra, and Sevruga based on the species of sturgeon (Acipenser sinensis). In this study, we developed an analytical method for determining the grade of black caviar using DNA barcodes and KASP markers. To identify the sturgeon species, ten black caviar samples were collected, and a reference DNA barcode library was developed using five genes (namely, 16S ribosomal RNA, cytochrome b, cytochrome c oxidase subunit I, cytochrome c oxidase subunit II, and NADH dehydrogenase subunit 5 genes). To develop the KASP markers, we selected 11 markers that could distinguish between the five grades of black caviar. As a result, specific markers for each of the targeted caviars were clustered into FAM-positive sections. DNA barcoding and the KASP assay revealed that one Beluga, six Osetra, and three Sevruga were identified among the ten caviar samples. Moreover, we found that the sturgeon species were mislabeled in two products. Here, we aimed to develop a KASP assay based on SNP that allows rapid and easy identification of caviar grade. These methods are expected to contribute to preventing the distribution of illegal products.