• Proceedings of the Korean Society of Computer Information Conference
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• 2017.07a
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• pp.127-128
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• 2017

해마다 대포차로 인한 사건 사고가 많이 일어나고 있으며, 피해율이 점점 더 증가하는 시점에서 검거율은 현저히 낮다. 이러한 문제를 줄이기 위해 대포차 검거 애플리케이션을 개발하고자 한다. 본 연구는 GPS와 사진으로부터 텍스트를 추출하는 기능을 활용하여 대포차를 검거하는 데 도움을 주는 애플리케이션이다. 사용자가 정차 및 주차되어 있는 차의 번호판을 사진 촬영 기능을 활용하여 자동으로 사진을 분석을 통해 차량의 번호를 인식하고, GPS를 활용하여 촬영한 장소의 위치 값을 추출하고 대포차 여부를 확인한다. 촬영한 차량이 대포차로 식별되면 관리 서버에 등록되고 대응 절차에 의해 대포차 검거 절차를 진행한다. 대포차의 실시간 검거를 위해 대포차 대응서버에서는 관리자에게 실시간으로 정보를 전송하고 알림 기능을 통해 검거 절차가 진행된다. 또한 실시간 대응에 어려움이 있는 상황에서는 자주 신고가 접수되는 출몰지역 정보를 관리자가 유추할 수 있도록 통계정보를 제공하여 추후 잠복에 의한 검거 정보를 제공한다.

• Weed & Turfgrass Science
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• v.4 no.1
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• pp.58-64
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• 2015

The black cutworm, Agrotis ipsilon (Hufnagel) is a major insect pest of economic crops including turfgrasses on golf courses. The entomopathogenic nematode, Steinernema carpocapsae GSN1 strain (ScG), a Korean isolate, is an effective biological control agent for soil dwelling and greenhouse insect pests in Korea. In addition, ScG is commercially produced in Korea. We conducted laboratory, greenhouse, and field trials to evaluate efficacy of ScG against black cutworms in turfgrasses. A rate of 63 infective juveniles (Ijs) per larva killed >90% of $3^{rd}$ instars feeding in cups of artificial diet within 3 days. In greenhouse trials against cutworms feeding in pots of turfgrass, efficacy of ScG was higher against $4^{th}$ instars than against $2^{nd}$ instars (90.0 vs 81.2% mortality, respectively, at $2,000Ijs\;pot^{-1}$) in perennial ryegrass, and higher against $3^{rd}$ instars in creeping bentgrass, Agrostis palustris than in zoysiagrass, Zoysia japonica (96.7 vs 52.5% mortality at $100,000Ijs\;m^{-2}$) in pot. The corrected mortality of $4^{th}$ instar was 79.9% at the rate of $100,000Ijs\;m^{-2}$ in the creeping bentgrass in the field. So ScG could be used as biological control agent against black cutworm in turfgrass of golf courses.

• Korean journal of applied entomology
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• v.60 no.2
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• pp.201-202
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• 2021

We confirmed the convenient bioassay method for the black cutworm, Agrotis ipsilon in semi-field conditions. And we surveyed the susceptibility to commercial pesticides of A. ipsilon, which feeds Chinese cabbage through this bioassay process. As a result of the test, six soil mixing insecticides and eight soil drenching insecticides showed more than 90% insecticidal activity.

• Weed & Turfgrass Science
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• v.2 no.1
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• pp.62-69
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• 2013

The black cutworm, Agrotis ipsilon (Hufnagel), damages various cultivated crops and it can also be a serious pest of turfgrass, especially on golf courses. Essential oils have potential as alternative control agents for insect pests. Sixteen essential oils (anise, camphor, cinnamon, citronella, clove, fennel, geranium, lavender, lemongrass, linseed, neem, peppermint, pine, thyme, turpentine and tea saponin) and paraffin oil were assessed in the laboratory, the green house and field trials for their efficacy against black cutworms in turf. Treatment of potted cores of perennial ryegrass turf with anise, cinnamon, neem, paraffin or turpentine reduced black cutworm damage in a greenhouse trial, and in a similar trial, applying neem oil at 4000, 2000 and 1000 ppm resulted in 100, 100 and 64% mortality, respectively, of black cutworms. Weight of survivors at the 1000 ppm rate was 5- fold less than weight of comparably-aged controls. Neem oil (2000 ppm) reduced growth of black cutworms feeding on treated clippings. A high rate of neem oil followed by irrigation (0.1 L of 20000 ppm neem oil with 0.9 L watering/$m^2$) was more effective than a lower concentration (1 L of 2000 ppm neem oil/$m^2$) against $2^{nd}$ and $3^{rd}$ instars in potted turf cores and field plots, respectively. However, not even the aforementioned higher rate effectively controlled $4^{th}$ instars in the field.

• Journal of Industrial Convergence
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• v.21 no.6
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• pp.13-21
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• 2023

The purpose of this study is to investigate the relationship between the amount of media coverage related to drug crimes and the actual number of drug-related arrests. It aims to determine the implications of this relationship for the formulation of police policies in response to drug crimes. To achieve this, we collected and analyzed 50,355 domestic online media coverage data from 2001 to 2022 and drug crime arrest data compiled by the National Police Agency. The analysis confirmed a significant causal relationship between the amount of online media coverage of drug crimes and the actual number of drug crime arrests. This relationship was found to be influenced by the existence of dominant issues and the relevance of famous incidents. It was determined that media coverage was also influenced by public interest beyond drug crime arrest numbers. Based on these research findings, the police have proposed the need to monitor the amount of crime-related media coverage and enhance security capabilities for crimes that receive public attention in order to gain the trust of the citizens.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2020.11a
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• pp.351-353
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• 2020

급변하는 현대사회에서 각종 범죄가 고도로 지능화, 전문화 되고 있을 뿐 만 아니라 매년 범죄율이 증가하고 있다. 범죄수사에서 범죄자를 검거하기 위해서는 '골든 타임'인 초기 단계가 가장 중요하다. 따라서 CCTV를 일일이 돌려보던 기존의 비효율적인 수사방식이 아닌, 얼굴인식기술을 활용해 골든타임 안에 범죄자를 검거 할 수 있도록 도와주는 얼굴인식기반 범죄수사 시스템을 제안한다. 얼굴인식 프로그램을 사용하여 CCTV 영상 속 범죄자가 있다면, 곧바로 얼굴을 인식해 표시 해줌으로써 단시간 안에 범죄자의 이동경로를 파악한다. 이후 이동경로 및 수사정보를 웹페이지를 통해 다른 경찰관들과 공유해 범죄자를 빠르게 검거하는 시스템을 제작하였다. 제작과정에서 얼굴인식관련 기술은 Deep Metric CNN(triplet), Resnet, Knn classification을 사용해 python으로 구현하였다. 통신을 위한 웹서버는 Bitnami를 통해 구축했으며, NAT, DHCP, Port Fowarding 기술을 사용했다. 마지막으로 웹페이지는 HTML, PHP, CSS 등을 통해 제작해 수사정보를 주고 받을 수 있게 제작하였다.

• 방재와보험
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• s.50
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• pp.16-19
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• 1991

• Weed & Turfgrass Science
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• v.3 no.2
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• pp.114-120
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• 2014

Turfgrass insect pests were investigated in different turf sod production areas of Korea. Twelve insect pest species of 7 families in 6 orders and one Eriophyidae mite, Aceria zoysiae were collected from turf sod production areas. The zoysiagrass mite was most frequently occurred zoysiagrass sod production areas. Damaged rate by zoysiagrass mite was increased from May to September. Noctuidae (Spodoptera depravata, Agrotis ipsilon and A. segetum) and Pyralidae (Crambus sp.) insect pests in Lepidoptera were attracted in A. ipsilon sex pheromone trap. Eggs and larva of A. ipsilon was the highest occurred August. Zoysiagrass mite and A. ipsilon were main insect pests in turf sod production areas in Korea.

• Korean Security Journal
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• no.13
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• pp.487-505
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• 2007

This study is to examine relations between the number of occurrence of big five critical crimes that consist of homicide, robbery, rape, theft, violence and the number of the security companies and the security guards, and between the number of the security companies, the security guards and the number of arrests from the big five critical crimes. To achieve this objective, this research selects a subject of study, the number of the security companies and security guards, and the number of occurrences of the big five critical crimes and arrests of the big five crimes from 1990 to 2005. The selected data are then analyzed according to the variables using SPSS 12.0. Each hypothesis is verified with the level of significance ${\alpha}$=.05 using the statistical techniques such as Correlation Analysis, Regression Analysis, etc. The following is the result of the study: First, the number of occurrences of the big five critical crimes affects the number of the security companies at a significant level. Second, the number of the security companies affects the number of arrests of the big five crime at a significant level.

• The Bimonthly Magazine for Agrochemicals and Plant Protection
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• v.13 no.3 s.108
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• pp.106-111
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• 1992