• Animal Systematics, Evolution and Diversity
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• v.36 no.1
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• pp.31-34
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• 2020

The genus Blacus Nees is cosmopolitan genus of the subfamily Blacinae. The members of genus Blacus endoparasites of colepterous larvae: Staphylinidae, Nitidulidae, Cryptophagidae, Scolytidae, Anobiidae, Curculionidae and Melyridae. Previously, 13 Korean species of the genus have been investigated by several researchers. In this study, eight species of the genus Blacus are reported for the first time from Korea: Blacus apaches Achterberg, B. chabarovi Belokobylskij, B. compressus Belokobylskij, B. fischeri Haeselbarth, B. interstitialis Ruthe, B. mamillanus Ruthe, B. robustus Haeselbarth, and B. ussuriensis Belokobylskij. Diagnosis and host records are given for each species.

• Animal Systematics, Evolution and Diversity
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• v.36 no.1
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• pp.25-30
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• 2020

Braconid wasps is second largest family of Hymenoptera. It is comprising more than 18,000 described species. In Korea, a total of 910 species have been recorded to date. In the present study, nine species of the family Braconidae are recorded for the first time from Korea: Aneurobracon philippinensis (Musebeck), Cenocoelius japonicus (Watanabe), Rattana sinica He & Chen, Adelius clandestinus (Förster), Blacometeorus brevicauda (Hellen), Centistes minutus Chen & Achterberg, Centistes sylvicola Belokobylskij, Gnamptodon sichotaealinicus Belokobylskij, Cotesia urabae Austin & Allen. Diagnosis, distribution and host information for the each species are provided.

• Animal Systematics, Evolution and Diversity
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• v.36 no.1
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• pp.17-24
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• 2020

Doryctinae is a large and heterogeneous group with more than 1,000 described. It is idiobiont ectoparasitoids on the larvae of wood-boring and xylophagous beetles. Some species attack larvae of wood boring lepidoptera. In the present study, fifteen species belonging to eight genera of the subfamily Doryctinae are recorded for the first time from Korea: Doryctes Haliday (2 species), Eodendrus Belokobylskij (1 species), Heterospilus Haliday (4 species), Monolexis Förster (1 species), Neurocrassus Snoflak (2 species), Rhoptrocentrus Marshall (1 species), Sonanus Belokobylskij et Konishi (1 species), Spathius Nees (3 speices). The genera Eodendrus Belokobylskij, Monolexis Förster, Rhoptrocentrus Marshall, Sonanus Belokobylskij et Konishi and fifteen species are reported for the first times from Korea. Diagnosis and host information are provided.

• Electrical & Electronic Materials
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• v.11 no.11
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• pp.37-45
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• 1998

In this paper, present status of super high-efficiency tandem solar cells has been reviewed and key issues for realizing super high-efficiency have also been discussed. In addition, the terretrial R&D activities of tandem cells, in the New Sunshine Program of MITI(Ministry of International Trade and Industry) and NEDO(New Energy and Industrial Technology Development Organization) in Japan are reviewed briefly. The mechanical stacked 3-junction cells of monolithically grown InGaP/GaAs 2-junction cells and InGaAs cells have reached the highest efficiency achieved in Japan of 33.3% at 1-sun AM1.5. This paper also reports high-efficiency InGaP/GaAs 2-junction solar cells with a world-record efficiency of 26.9% at AM0, 28$^{\circ}C$ and radiation damage recovery phenomena of the tandem cell performance due to minority-carrier injection under light illumination or forward bias, which causes defect annealing in InGaP top cells. Future prospects for realizing super-high efficiency and low-cost tandem solar cells are also described.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.4
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• pp.2784-2790
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• 2015

The column-oriented database storage is a very advanced model for large-volume data transactions because of its superior I/O performance. Traditional data storages exploit row-oriented storage where the attributes of a record are placed contiguously in hard disk for fast write operations. However, for search-mostly data warehouse systems, column-oriented storage has become a more proper model because of its superior read performance. Recently, solid state drive using flash memory is largely recognized as the preferred storage media for high-speed data analysis systems. In this research, we propose a new transaction recovery scheme for a column-oriented database environment which is based on a flash media file system. We improved traditional shadow paging schemes by reusing old data pages which are supposed to be invalidated in the course of writing a new data page in the flash file system environment. In order to reuse these data pages, we exploit reused shadow list structure in our column-oriented shadow recovery(CoSR) scheme. CoSR scheme minimizes the additional storage overhead for keeping shadow pages and minimizes the I/O performance degradation caused by column data compression of traditional recovery schemes. Based on the results of the performance evaluation, we conclude that CoSR outperforms the traditional schemes by 17%.

• Journal of The Korean Dental Society of Anesthesiology
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• v.14 no.2
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• pp.95-100
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• 2014

Background: About 60% of patients with epilepsy showed a variety of complications after returning home. The purpose of this study is to get further information and to help in the anesthetic management of the disable patients with epilepsy. Methods: After searching the outpatient anesthesia list of Seoul National University Dental Hospital clinic of the disabled from September 2010 to March 2012, we found total 83 patient cases who were taking antiepileptic drugs. A nurse of anethesiology department called to the patient's home after general anesthesia and got surveys with questionnaires form filled with complications at home. We enrolled total of 51 patients who agreed to participate this survey. And we also reviewed pre-anesthesia evaluation sheet, anesthesia record, and recovery and discharge record. Results: 11 of 51 (21.6%) patients had seizure convulsion at home within 1 weeks. 33.4% of patients who had at least once seizure attack per week had a seizure attack within 3 days. And 50% of once a month frequency patients had a seizure attack within 1 week. 33% of 1 - 3 seizure attacks per year patient group had a convulsion within 1 week. But there was no seizure attack within 1 week in whom had no seizure attack history during more than 1 year. Conclusions: After dental treatment, patient taking anticonvulsant have so many complications-especially seizure, more than we respected. We need more research about handle these problems.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.33 no.4
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• pp.609-619
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• 2023

Recently, crimes using drones, one of the IoT industries have been continuously reported. In particular, drones are characterized by easy access and free movement, so they are used for various crimes such as transporting explosives, transporting drugs, and illegal recording. In order to analyze and investigate these criminal acts, drone forensic research is highly emphasized. Media data, PII, and flight records are digital forensic artifacts that can be acquired from drones, in particluar flight records are important artifacts since they can be used to trace drone activities. Therefore, in this paper, the characteristics of the deleted flight record files of DJI drones are presented and verified using the Phantom3, Phantom4 andMini2 models, two drones with differences in characteristics. Additionally, the recovery level is analyzed using the flight record file characteristics, and lastly, drones with the capacity to recover flight records for each drone model and drone models without it are classified.

• ALGAE
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• v.22 no.1
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• pp.37-44
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• 2007

In order to understand the impact of the heavy-oil pollution by the 1997 Nakhodka oil spill on the intertidal macroalgal vegetation, we have been monitoring succession in the intertidal flora since 1997 at Oh-ura, Takno, and Imago-Ura Cove, Kasumi in Hyogo Prefecture, northwestern coast of Honshu, Japan. We employed two different monitoring methods: 1) The percent cover of macro-algae (seaweeds) in 1 x 1 m quadrats along 450 m intertidal transects parallel to the shoreline were assessed and recorded by photographic imaging until 2002, and for 30-40 m transects of the most heavily polluted areas in 2004 and 2006; 2) The percent cover of macro-algae in 0.5 x 0.5 m quadrats along a transect line perpendicular to the shore were recorded and all macrophytes within the quadrat were completely removed to record the wet weight of each taxon (1997-2006). Based on the monitoring data, we conclude that the high intertidal zone at Imago-ura, where a large part of the stranded oil accumulated, suffered the heaviest damage and experienced the slowest recovery. In addition, although the original status of macroalgal vegetation before the impact was not well-documented, it appeared that recovery from the damage caused by the oil pollution required four to five years.

• The Journal of the Korea Contents Association
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• v.10 no.12
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• pp.223-235
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• 2010

As the funeral service is on ritual of addressing death that is the final phase of life, it can be said to be the final stage of welfare service. It is developing into the stage of make-up, which reproduces the image of reality or expresses with the better appearance from the level of recovery technique, which restores the final form of the dead. This is caused by a request of the bereaved family with the aim of remembering the dead's final image with good looks. Methods, which are being changed by period, can be found in a record. As this funeral make-up is one field of special make-up, it is systematically made into proper application method along with the development in special materials. Thus, it will become one of the most important courses henceforth in our funeral culture available for beautifully decorating the dead's final image. In order to satisfy the request of the bereaved family, it is necessary to made floral decoration, casket cloth, and acoustic effect including the casket stage of worshipping the dead inside the funeral hall.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.22 no.1
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• pp.57-65
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• 2012

People leave voicemails or record phone conversations in their daily cell phone use. Sometimes important voice data is deleted by the user accidently, or purposely to cover up criminal activity. In these cases, deleted voice data must be able to be recovered for forensics, since the voice data can be used as evidence in a criminal case. Because cell phones store data that is easily fragmented in flash memory, voice data recovery is very difficult. However, if there are identifiable patterns for the deleted voice data, we can recover a significant amount of it by researching images of it. There are several types of voice data, such as QCP, AMR, MP4, etc.. This study researches the data recovery solutions for EVRC codec and AMR codec in QCP file, Qualcumm's voice data format in cell phone.