• 한국환경복원기술학회지
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• 제7권1호
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• pp.30-39
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• 2004

This research is of the rapid industrialization taking place resulting in the destruction of forests. The method that is implemented needs the vegetation to work well with the topsoil in order to restore the environment. In November the researcher collected a depth of 5 cm of topsoil from a well developed forest, after the fallen leaves were cleared. The results of the essential research are as follows : In the case of using the forest topsoil to plant trees latency seeds, during the early stages of tree planting, time is necessary for the desired vegetation to reach a similar state to the vegetation being restored. The results conclude that the best possible affect is obtained through a method utilizing seeded species. Utilizing forest topsoil, slopes that have been too damaged for trees to be planted can be sown with seeds. In addition the rearing of naturally-emerging species had a tendency to decline. When considering rearing naturally-emerging species to flourish in the topsoil, in the early stages of tree planting, the beginning foundation of sowing seeded species has to have a standard of about 1,000parts/$m^2$ This standard has been found to the most successful.

• 한국컴퓨터정보학회논문지
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• 제23권12호
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• pp.73-80
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• 2018

Certification revocation list(CRL) is needed for excluding compromised, faulty, illegitimate vehicle nodes and preventing the use of compromised cryptographic materials in vehicular communications. It should be distributed to vehicles resource-efficiently and CRL computational load of vehicles should not impact on life-critical applications with delay sensitive nature such as the pre-crash sensing that affords under 50msec latency. However, in the existing scheme, when a vehicle receives CRL, the vehicle calculates linkage values from linkage seeds, which results in heavy computational load. This paper proposes, a new CRL distribution scheme is proposed, which minimizes the time for CRL processing of vehicles. In the proposed scheme, the linkage value calculation procedure is performed by road-side unit(RSU) instead of the vehicle, and then the extracted linkage values are relayed to the vehicle transparently. The simulation results show that the proposed scheme reduces the CRL computational load dramatically, which would minimize impact on life-critical applications' operations with low latency.

• 지역사회간호학회지
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• 제31권4호
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• pp.447-458
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• 2020

Purpose: The purpose of this study was to identify the effects of auricular acupressure therapy on sleep disorder and fatigue in menopausal women. Methods: The study design was a non-equivalent control group pretest-posttest design. The participants were 40~60 years old women, assigned to the experimental group (n=25) or the control group (n=27). Auricular acupressure using vaccaria seeds was administered to the experimental group. The sessions continued for 6 weeks. Outcome measures included Pittsburgh sleep quality index, sleep meter, sleep diary, fatigue assessment instrument, serum cortisol, and serum serotonin. Results: Menopausal women in the experimental group showed significant increases in deep sleep, light sleep, serotonin level and sleep duration compared with the control group. Also, the experimental group reported decreases in PSQI, sleep latency, awakening time, fatigue and cortisol level compared with the control group. Conclusion: Results show that auricular acupressure using vaccaria seeds is considered as an effective treatment for sleep disorder and fatigue in menopausal women. We conclude that it can be used as a nursing intervention method proven to reduce sleep disorder and fatigue in menopausal women.

• 한국환경복원기술학회지
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• 제7권4호
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• pp.110-119
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• 2004

This research was conducted to develop spraying cultivation method using forest topsoils in order to restore the disturbed slopes. In November the researcher collected a depth of 5 cm of topsoils from a well developed forest, after the fallen leaves were cleared. The essential results of the research are as follows: In the case of using the forest topsoils, during the early stages of planting, time is necessary for the desired vegetation to reach a similar state to the vegetation being restored. The best possible effect is obtained through a method utilizing forest topsoil(30%)+loam silt soil(70%)+seeding with grasses and native plants including trees, shrubs, and herbs. Several plants such as Pinus densiftora, Potentilla fragarioides, Miscanthus sinensis, Erigeron canadensis seemed to be naturally emerged from the topsoils From this experiment, it was recommended that environment potential within topsoil should be comprehended. Also, topsoil deposit and gathering methods should be experimented properly.

• 한국융합학회논문지
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• 제12권3호
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• pp.9-15
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• 2021

최근 5G와 인공지능 기술이 발전하면서 클라우드 엣지 환경에서 정보를 수집/처리/분석 하기 위한 AIoT 기술에 많은 관심을 갖고 있다. AIoT 기술은 다양한 스마트 환경에 적용되고 있지만 수집된 정보의 정확한 분석을 통해 빠른 대응처리를 수행할 수 있는 연구가 필요하다. 본 논문에서는 스마트 환경에서 수집된 정보를 AIoT에서 빠른 처리와 정확한 분석/예측을 통해 AIoT 정보들간 연계 처리를 블록 처리함으써 대역폭 및 처리시간을 최소화할 수 있는 기법을 제안한다. 제안 기법은 블록체인으로 수집된 정보를 다중 연계하여 AIoT 장치에서 데이터 인덱스에 대한 시드를 생성하여 수집정보와 함께 블록처리하여 데이터 센터로 전달한다. 이 때, 클라우드와 AIoT 장치사이는 DNN(Deep Neural Network) 모델을 배치하여 네트워크 오버헤드를 줄이도록 하였다. 그리고, 서버/데이터센터에서는 전달된 분석 및 예측된 결과를 통해 정확하지 못한 AIoT 정보의 정확도를 개선하여 지연시간을 최소화하도록 하였다. 또한, 제안기법은 AIoT 정보에 가중치를 적용하여 블록체인으로 그룹핑하기 때문에 계층화된 다층 네트워크로 분할 가능하도록 하여 데이터 지연시간을 최소화하였다.