http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Windows IM Driver의 HFP 필터를 통한 IDS 성능 향상
김성윤,김경식 제주대학교 공과대학 첨단기술연구소 2002 尖端技術硏究所論文集 Vol.13 No.2
This thesis propose a system that designed and implemented to overcome efficiently the bottleneck occurring in IDS(Intrusion Detection System). IDS must analyze all incoming packets to detect the signatures of intrusion. With a single packet to fail analyze, it may lose a critical clue of intrusion and fail to detect an intrusion. The proposed system is developed at the layer of IM(Intermediate) driver in MS(Microsoft) Windows. Most of packet capture modules used in IDS is developed in protocol driver layer. and then the proposed system is independent of various IDS. The proposed system can analyze all of packets existing in a fast ethernet network and filter HFP(Hacking-Free-Packet) completely. The performance of IDS using the proposed system is improved by increasing the amount of web traffic due to heavy network traffic.
김영균,김성윤,장경훈,김경식 제주대학교 산업기술연구소 2001 尖端技術硏究所論文集 Vol.12 No.1
A networked environment has the possibility of the illegal access to the thread of a network attack. The new IDS(intrusion detection system) using autonomous agent is proposed in this paper, this IDS allow it easily extended, configured and modified, either by adding new components, or by replacing components when they need to be updated.
金基大,許潤根,金滿秀,金聲來 충남대학교 농업과학연구소 1978 農業技術硏究報告 Vol.5 No.2
For improvement and new design of tillage equipments, indoor test is very useful and more desirable than outdoor because the experiment of ourdoor is very difficult and its cost is expensive. This study was carried out to determine the physical properties of artificial soil suitable for the indoor test with the soil bin manufactured at the workshop of the Dept. of Agricultural Machinery Engineering. The artificial soil being studied was made with very similarity to the natural soil of the experimental plots of Chungnam National University, and it consist of 39.35 percent, by weight of bentonite and 48.10 percent of sand with 12.55 percent of SAE 10W oil. The results are summarized as follows: 1. Bulk density increased with increasing number of rolling, and its relationship could be expressed. y=1.073200+0.07080x-0.002263x^2 where, y=bulk density(g/㎤), x=number of rolling. These results could be explained that the effect of rolling velocity on the bulk density was not singnificant in the range of 4.5∼10.4 cm/sec. 2. The absolute soil hardness depended directly upon number of rolling, and their relationship could be expressed by the equation. y=37.74(0.64+0.17x-0.0054x^2)/(3.36-0.17x-0.0054x^2)^3. where, y=absolute soil hardness(kg/㎤), x=number of rolling. 3. Relationship between the bulk density and absolute soil hardness could be expressed by the equation; y=37.74(2.46 x-2.02)/(6.02-2.46x)^3. where, y=absolute soil hardness, x=bulk density. 4. The cohesion and the angle of internal friction of artificial soil were increased with increasing its bulk density. According to the cohesion and angle of internal friction, at the range of 1.60∼1.75(g/㎤) of bulk density, this artificial soil was similar with sandy loam of 29.5% moisture content of natural soil. 5. Sliding-fricfion coefficient of steel plate on the artificial soil was 0.3∼0.4 and rubber plate on it is 0.64∼0.72. Those values were very similar with those of natural soil being studies by many others.
김영균,김성윤,장경훈,김경식 濟州大學校 産業技術硏究所 2001 산업기술연구소논문집 Vol.12 No.1
A networked environment has the possibility of thw illegal access to the thread of a network attack. The new IDS(intrusion detection system) using autonomous agent is proposed in this paper. this IDS allow it easily extended. configured ans modified. either by adding new components. or by replacing components when they need to be updated.
Soung Hee Yun,Young Eun Kim,Jeong Ho Choi,Sung-Chan Nam,Jaeeon Chang,윤여일 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.12
The physical properties of the absorbent are important for designing a CO2 capture process. The density and viscosity are used to calculate the mass transfer coefficient that determines the height of the absorber. Furthermore, these physical data affect the selection of liquid pump and pipe lines. Vapor pressure is a factor that estimates absorbent loss and condenser size. In this study, the physical properties of the aqueous potassium carbonate (K2CO3)+2-methylpiperazine (2MPZ) solution were obtained in a temperature range from 303.15 K to 343.15 K. The physical properties of the different aqueous K2CO3+2MPZ solutions (various amine concentrations and amounts of CO2 absorbed) were measured to obtain the parameters for process design. A regression analysis was conducted for the experimental data. The densities of the aqueous K2CO3+2MPZ solutions increased when the amounts of absorbed CO2 or 2MPZ concentrations were increased. The densities and viscosities of the absorbents decreased according to the increase in temperature. The viscosities of the absorbent increased when 2MPZ concentrations were increased. The temperature dependency of vapor pressure follows the Antoine equation; the CO2 gas and aqueous solution of a base follows the vapor pressure variation of the mixed solution.
김윤성 ( Yun Soung Kim ) 한국환경정책학회 2016 環境政策 Vol.24 No.1
분위회귀분석을 통해 과수주산지 5곳의 일 강수량·일 최고기온·일 최저기온을 분석하였다. 분석결과 겨울철 50분위 일 최저기온 상승이 가장 뚜렷했다. 분석지역 모두 여름철 일 최고기온의 95분위 기울기가 상승하고 있다. 경북 내륙의 문경·영천은 5분위 일 최저기온이 낮아지고 있다. 일 강수량 증감 유형은 지역별로 차이가 있다. 종합적으로 볼 때 극한기상 발생은 잦아지고 있으나 혹한과 혹서 발생빈도가 급변할 것으로 보이지는 않아 동상해 역시 급격한 감소는 없을 것으로 보이며 더위가 더해질 수 있으나 폭우로 인해 일조시간 감소가 나타날 수도 있다. 그러므로 종합위험 보장 재해보험 확대 등 과수농가 경영안정대책은 강화될 필요가 있다. 또한 과수재배가 집중된 경북 내륙은 입지상 봄철 동상해가 증가할 수 있으므로 대비가 필요하다. In this study data for changes in daily maximum and minimum air temperature and rainfall was examined over five horticultural regions using quantile regression. The results show a distinct increase in daily minimum air temperature during the winter season. In addition, in the 95th quantile for the summer season, there was an upward trend in daily maximum air temperature in all regions. In Mungyeong and Yongchun, downward trends in daily minimum air temperature were apparent during the 5th quantile of the winter season. On the other hand, rainfall distribution types were diverse among the regions. This analysis indicates that extreme weather events in horticultural regions have become more frequent. Therefore, policies to stabilize horticultural farm management need to be strengthened. In addition, the interior areas of Gyeongsangbuk-do need to prepare for the increased occurrence of frost and freezing during the spring season.