Wang Jun, Xu Xiaoyuan, Wen Yi-Zhi, Yu Changxuan, Wan Baonian, N. Luhmann, Wang Jian, Xia Zhengang
{"title":"One-Dimensional Vertical ECEI Diagnostic for HT-7 Tokamak","authors":"Wang Jun, Xu Xiaoyuan, Wen Yi-Zhi, Yu Changxuan, Wan Baonian, N. Luhmann, Wang Jian, Xia Zhengang","doi":"10.1088/1009-0630/8/1/17","DOIUrl":"https://doi.org/10.1088/1009-0630/8/1/17","url":null,"abstract":"At the first stage of the electron cyclotron emission imaging (ECEI) diagnostic project on HT-7, a 16-channel vertical-resolved ECEI diagnostic has been developed and installed on HT-7 tokamak to measure electron cyclotron emission with a temporal resolution of 0.5 μsec. The system works at a fixed frequency of 97.5 GHz. The sample volumes of the system are aligned vertically with a vertical channel spacing of 11 mm, and can be shifted across the plasma cross-section by varying the toroidal magnetic field. The high spatial resolution of the system is achieved by utilizing a low-cost linear mixer/receiver array and an optical imaging system. The focus location may be shifted horizontally when translating one of the optical imaging elements. The details of the system design and laboratory testing of the ECEI optics are presented together with the preliminary experimental results.","PeriodicalId":20250,"journal":{"name":"Plasma Science & Technology","volume":"213 1","pages":"76-79"},"PeriodicalIF":1.7,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74619333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T van den Boogaart, F Wen, J W Davies, G P Lomonossoff
{"title":"Replicase-derived resistance against pea early browning virus in Nicotiana benthamiana is an unstable resistance based upon posttranscriptional gene silencing.","authors":"T van den Boogaart, F Wen, J W Davies, G P Lomonossoff","doi":"10.1094/MPMI.2001.14.2.196","DOIUrl":"10.1094/MPMI.2001.14.2.196","url":null,"abstract":"<p><p>Virus resistance in Nicotiana benthamiana plants containing a translatable Pea early browning virus (PEBV) 54K sequence from the 201K replicase gene has been reported previously. Resistant plants contain multiple transgene copies divided between two loci. Analysis of a genetic series containing the two loci in separate homozygous or heterozygous condition suggest that only one of the loci is necessary to induce the resistance. The resistance observed in R2 and R3 generations of lines containing both transgene loci in homozygous condition became less consistent in R4 and R5 generations. This inversely correlated with steady-state transgene transcript levels of the segregating populations. The use of recombinant Potato virus X vectors carrying PEBV 54K sequences showed that the resistance is based upon posttranscriptional gene silencing, is non-strand specific, and recognizes 3' located sequences within the PEBV 54K sequence.</p>","PeriodicalId":20250,"journal":{"name":"Plasma Science & Technology","volume":"24 1","pages":"196-203"},"PeriodicalIF":3.5,"publicationDate":"2001-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1094/MPMI.2001.14.2.196","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82766190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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