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      • KCI등재

        Japanese beetle lures used alone or combined with structurally related chemicals to trap NE China scarabs (Coleoptera: Scarabaeidae)

        Ri-zhao Chen,Michael G. Kleinb,YuLi,Qi-yun Li,Cheng-fa Sheng 한국응용곤충학회 2014 Journal of Asia-Pacific Entomology Vol.17 No.4

        Scarab beetles are agriculturally important worldwide, and as adults or larvae they may cause damage to theleaves, flowers, fruit, and roots of crops. Previous international studies showed that Japanese beetle (Popillia japonica,Newman) lures, and structurally related chemicals, can attract numerous scarabs. Based on those studies,season-long trials in grape, cabbage, corn and soybean fieldswere conducted in 2012–2013 in NE China. Tests determinedthe attractiveness of the Japanese beetle floral lure (phenethyl propionate:eugenol:geraniol, 3:7:3) andsex attractant (Japonilure), alone, combined, or in a mixture with either (Z)-3-hexen-1-ol, anethole = 1-methoxy-4-propenyl benzene or benzyl alcohol, to local Coleoptera. Furthermore, control efficacies based onleaf, ear, and silk damage, as well as reductions of adults on plants, and overwintering larvae, were also determined. Eleven scarab species, and four non-scarab species, were captured. The addition of other chemicals increasedthe attractiveness of the two Japanese beetle lures to scarabs such as Potosia brevitarsis (Lewis),Oxycetonia jecunda Faldermann, Holotrichia diomphalia Bates et al., Popillia quadriguttata (Fabricius), Maladeraverticalis (Fairmaire), and Metabolus impressifrons Fairmaire, and the chrysomelid beetle Chrysomela populi L. The floral lure, and floral lure plus Japonilure baited traps resulted in N80% overwintering larvae and adult reductionsin corn and cabbage fields, whereas the Japonilure traps gave similar results in the soybean fields. This indicatesthat the commercial Japanese beetle lure combination can be recommended for use by the Chinesefarmers in the corn or soybean fields, and that the related chemicals can be used to increase the attractivenessof the Japanese beetle lures.

      • KCI등재

        Do second generation Asia corn borer (Lepidoptera: Crambidae) immigrate to corn fields from alternate habitats?

        Ri-zhao Chen,Michael G. Kleinb,Qi-yun Li,Lian-Bing Li,Peng-Pei Li,Cheng-fa Sheng 한국응용곤충학회 2015 Journal of Asia-Pacific Entomology Vol.18 No.4

        Many Ostrinia furnacalis (Guenée), Asian corn borer, moths inhabit non-corn fields during the second generation, and could fly into corn fields and cause damage. Therefore, during 2013–2014, O. furnacalis pheromone baited Delta traps were distributed to investigate captures in different host habitats, such as corn fields preceded by various crops, or soybean fields neighboring corn. Months captured from various host fields were evaluated in the laboratory for fecundity, female longevity and mating behavior. The sex ratio of females to males from black light baited water traps deployed in soybean and corn fields was also compared. More males were found in the soybean fields, and catches decreased in traps going fromthe field center toward a corn field. This indicates that males in soybeans were not moving into nearby corn fields. No significant differences were noted in sex ratios, life span and fecundity of females between locations. Therefore the O. furnacalis females apparently lay eggs in their initial habitat but may move to soybeans for mating.

      • KCI등재

        Male and female Popillia quadriguttata (Fabricius) and Protaetia brevitarsis (Lewis) (Coleoptera: Scarabaeidae) response to Japanese beetle floral and pheromone lures

        Ri-zhao Chen,Michael G. Kleinb,Cheng-fa Sheng,Yu Li,Qi-yun Li 한국응용곤충학회 2013 Journal of Asia-Pacific Entomology Vol.16 No.4

        Popillia quadriguttata (Fabricius), and Protaetia brevitarsis (Lewis) adults were captured with Japanese beetle,Popillia japonica Newman, sex attractant and floral lures at Changchun, China during July–August 2012. The floral lure (phenethyl propionate:eugenol:geraniol, 3:7:3) was attractive to male and female P. quadriguttata (AV: 1.2 ± 0.9; 1.1 ± 0.3; total: 2.3 ± 0.8), and was similar in attraction to the combination of the sex attractant (SA) [(R, Z)-5-(1-decenyl) dihydro-2(3H)-furanone] plus the floral lure formale (1.60 ± 0.2), female (1.30 ± 1.1)and total captures (2.9 ± 3.0). However, the SA alone captured only males in much higher numbers than when combined with the floral lure (10.0 ± 6.4). In a separate earlier test, the greatest number of P. quadriguttata males (12.5 ± 3.0), female (12.2 ± 1.5) and total captures (24.7 ± 2.5) was in yellow, laboratory-made, bottle traps. The floral lure also attracted female Pro. brevitarsis (10.0 ± 3.4),while the SA attracted only fewmale beetles (1.0 ± 0.2). The combination SA + floral lure captured similar females (11.0 ± 2.0) and total (14.2 ± 2.2)Pro. brevitarsis as the floral lure alone. Two butterflies, Colias erate poliographus (Motschulsky) and Pieris rapae (Linnaeus), were also attracted to the floral lure. These studies indicate a potential for replacing pesticides by using the Japanese beetle lures for monitoring and control of several insects in China, and that theywould be useful in monitoring and eradication of two potential scarab pests, P. quadriguttata and Pro. brevitaris, in the United States and Europe

      • SCIESCOPUSKCI등재

        Cloning and Expression of FSHb Gene and the Effect of $FSH{\beta}$ on the mRNA Levels of FSHR in the Local Chicken

        Zhao, L.H.,Chen, J.L.,Xu, H.,Liu, J.W.,Xu, Ri Fu Asian Australasian Association of Animal Productio 2010 Animal Bioscience Vol.23 No.3

        Follicle-stimulating hormone (FSH) is a pituitary glycoprotein hormone that is encoded by separate alpha- and betasubunit genes. It plays a key role in stimulating and regulating ovarian follicular development and egg production in chicken. FSH signal transduction is mediated by the FSH receptor (FSHR) that exclusively interacts with the beta-subunit of FSH, but characterization of prokaryotic expression of the FSHb gene and its effect on the expression of the FSHR gene in local chickens have received very little attention. In the current study, the cDNA fragment of the FSHb gene from Dagu chicken was amplified using reverse transcription polymerase chain reaction (RT-PCR), and inserted into the pET-28a (+) vector to construct the pET-28a-FSHb plasmid. After expression of the plasmid in E. coli BL21 (DE3) under inducing conditions, the recombination protein, $FSH{\beta}$ subunit, was purified and injected into the experimental hens and the effect on the mRNA expression levels of the FSHR gene was investigated. Sequence comparison showed that the coding region of the FSHb gene in the local chicken shared 99%-100% homology to published nucleotides in chickens; only one synonymous nucleotide substitution was detected in the region. The encoded amino acids were completely identical with the reported sequence, which confirmed that the sequences of the chicken FSHb gene and the peptides of the $FSH{\beta}$ subunit are highly conserved. This may be due to the critical role of the normal function of the FSHb gene in hormonal specificity and regulation of reproduction. The results of gene expression revealed that a recombinant protein with a molecular weight of about 19 kDa was efficiently expressed and it was identified by Western blotting analysis. After administration of the purified $FSH{\beta}$ protein, significantly higher expression levels were demonstrated in uterus, ovary and oviduct samples (p<0.05). These observations suggested that the expressed $FSH{\beta}$ protein possesses biological activity, and has a potential role in regulation of reproductive physiology in chickens.

      • KCI등재
      • KCI등재후보

        관계데이터베이스 테이블의 RDF모델링

        조점방(Zhanfang Zhao),김주리(Ju-Ri Kim),최진탁(Jin-Tak Choi),한성국(Sung-Kook Han) 융복합지식학회 2017 융복합지식학회논문지 Vol.5 No.1

        IP 링크드 데이터는 문서중심의 현재의 웹을 상호 연결된 데이터 중심의 웹으로 진화시켜 궁극적으로 시맨틱 웹을 실현 할 수 있는 강력한 기술로 떠오르고 있다. 관계 데이터베이스에 저장된 방대한 데이터를 웹 표준형식인 RDF로 변환하는 것을 링크드 데이터를 효과적이고 실제적으로 공표할 수 있는 방법이다. 본 논문에서는 관계 데이터베이스의 엔티티 스키마를 RDF로 매핑하는 새로운 방법을 제안한다. 관계 데이터베이스의 개념 스키마 구조은 도메인 온톨로지 모델과 유사하므로, 관계 데이터베이스의 스키마를 RDF로 변환하는 것이 인스턴스 중심 변환 방식보다는 효과적이다. 본 논문에서는 관계 데이터베이스와 RDF의 본질적 차이를 극복하는 방법을 제시한다. 또한, RDF의 그래프 패턴 매칭과 관계데이터 베이스의 조인 연산을 효과적으로 매핑하는 방법도 제시한다. 본 논문에서 제시된 엔티티 기반 매핑 방법으로 관계 데이터베이스에 SPARQL 엔드포인트를 용이하게 구현할 수 있다. For the Linked Data (LD) has emerged as a powerful enabler to extend the current Web of documents to a Web of interlinked data and, ultimately, into the Semantic Web. The effective and practical way to populate Linked Data is to publish the data stored in relational databases in the Web as the standard form of RDF. This paper proposes a new and instinctive method based on entity schema translation for RDB2RDF. Since the conceptual schema of RDB is similar to ontological modeling of a certain domain, RDB schema mapping into RDF Schema is more effective than the conventional instance-based approaches. This paper describes how to resolve the intrinsic differences between RDB and RDF in entity level. In addition, we also show the ways to map the operational differences, such as graph pattern matching, and JOIN operations. To extend this approach, we present a new entity-based RDB2RDF mapping method and an effective way to implement SPARQL endpoint in RDB.

      • KCI등재후보

        치과 임플란트 환자의 통계 분석에 관한 후향적 연구

        조춘일,조인호,문은수,Zhao, Chun-Ri,Cho, In-Ho,Moon, Eun-Soo 대한치과보철학회 2009 대한치과보철학회지 Vol.47 No.3

        연구목적: 전 세계적인 고령화 추세에 따라 무치악 환자들이 증가하고 이들의 임플란트 보철 수복에 대한 수요와 관심이 증가하고 있다. 부분 무치악 또는 완전 무치악에서 임플란트를 이용한 보철 치료는 효과적이며 그 성공율 또한 높게 보고되고 있다. 하지만 임플란트 사용 범위가 다양해짐에 따라 여러 가지 실패가 보고되고 이러한 실패를 줄이기 위한 방법들이 연구, 개발되고 있다. 이에 본 연구에서는 임플란트 생존율을 조사하고, 이를 토대로 향후 임플란트의 생존율에 대해 예측하고자 한다. 연구 방법: 1998년 8월부터 2003년 8월까지, 2003년 9월부터 2007년 4월까지 두 차례로 나누어 진료기록부 조사를 통해 최근 10년 동안 단국대학교 치과병원에서 임플란트를 치료받은 환자들의 임플란트 생존율에 대해 조사하였다. 결과: 진료기록부 조사를 통해 식립된 임플란트의 수, 임플란트 위치 및 분포, 1차 수술 후부터 2차 수술까지의 기간, 생존율 등을 조사하여 다음과 같은 결과를 얻었다. 1. 1차 조사에서 612명 환자에게 1680개의 임플란트가 식립되고, 2차 조사에서는 933명 환자에게 2438개가 식립되어 총 1545명의 환자에게 4118개 임플란트가 식립되었다. 2. 총 1545명 환자의 성비는 남성이 57.2% (884명), 여성이 42.8% (661명)였고, 총 4118개 임플란트에서 상악에 1739개 (42.2%), 하악에 2379개 (57.8%)가 식립되었으며 하악 구치부에 2043개 (53.2%)가 식립되어 제일 높은 비율을 차지하였다. 3. 1차 조사에서는 총 1680개의 임플란트 중 57개가 실패하였고 2차 조사에서는 2438개의 임플란트 중 17개가 실패하여 총 4118개의 임플란트 중 74개가 실패 하여 98.2%의 생존율을 보였다. 4. 1차 수술 이후 2차 수술이 시행되기까지의 기간은 상악에서 평균 7.4개월에서 6.8개월로, 하악에서 평균 5.6개월에서 5.0개월로 2차 조사 기간에서 0.6개월 단축되었다. 결론: 이상의 결과로 볼 때 1차 조사에서보다 2차 조사시에 식립된 임플란트의 수 및 생존율이 증가하였고 1차수술 후부터 2차 수술 전까지 기간도 단축되고 있음을 알 수 있었다. 앞으로도 임플란트에 대한 관심과 수요가 계속 증가 할 것이고 그 성공율 또한 증가하리라 사료된다. Statement of problem: The number of edentulous patients is increasing due to an aging society, which leads to increased demands and interests on implant restorations. Implant restorations are an effective treatment method for both complete and partially edentulous patients, and the success rate has been reported to be high. But because of the increased use of implants in various situations have resulted in frequent reports of failures on implant restorations. Various efforts to overcome these failures have been made. Purpose: The aim of this study was to investigate the statistic survival rate of dental implants on patients who were treated at Dankook University Dental Hospital during the past 10 years based on their charts. Materials and methods :The research was made for two different periods of time; The first investigation was for patients from August, 1998 to August, 2003 and the second was for patients from September, 2003 to April, 2007. Information on the number of implants placed, the location and distribution of implants, the duration between the first and second surgery, and the survival rate of implants were investigated from the patients'charts. Results: 1. According to the first investigation, 1680 implants were placed on 612 patients and the second investigation showed 2438 implants placed on 933 patients. Thus a total of 4118 implants on 1545 patients. 2. Among the 1545 patients, 884 patients were male (57.2 %) and 661 patients were female (42.8%). Out of 4118 implants, 1739 implants (42.2%) were placed on the maxilla, and 2379 implants (57.8%) on the mandible. Implants were placed most frequently in the posterior region of the mandible. A total of 2043 implants (53.2%) were placed in this region. 3. According to the first investigation, 57 out of 1680, implants failed, while from the second investigation, 17 out of 2438 implants were reported as failure. In total, 74 implants failed, which results in a 98.2% survival rate. 4. The average duration between the first and the second surgeries in maxillas decreased from 7.4 months to 6.8 months. The duration also decreased from 5.6 months to 5.0 months in mandibles. Conclusion: As shown in the results, the number of placed implants and the survival rate of implants were higher in the second investigation than that of the first investigation. And the time spent after the first surgery to the second surgery was less in the second investigation. Consequently, it can be presumed that the demand and consumption of dental implants as well as the survival rate will increase in the future.

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