10 research outputs found
A scientific note on first report of Apis laboriosa F Smith, 1871 in Vietnam
No full textInternational audienc
The distribution of powers and responsibilities affecting forests, land use, and REDD+ across levels and sectors in Vietnam: A legal study
No full textImproving opportunities for smallholder timber planters in Vietnam to benefit from domestic wood processing
No full textExchange of Varroa jacobsoni between colonies of Apis mellifera and A. cerana shows that non-reproduction in worker cells is a trait of the mite.
No full textThe phenomenon of non-reproduction in worker cells as a Varroa-tolerance factor involves natural selection of the mites.
No full textThe phenomenon of non-reproduction in worker cells as a Varroa-tolerance factor involves natural selection of the mites.
No full textExchange of Varroa jacobsoni between colonies of Apis mellifera and A. cerana shows that non-reproduction in worker cells is a trait of the mite.
No full textFront-end electronics and data acquisition system for imaging atmospheric Cherenkov telescopes
No full textInternational audienceIn this paper, a front-end electronics based on an application-specific integrated circuit (ASIC) is presented for the future imaging atmospheric Cherenkov telescopes (IACTs). To achieve this purpose, a 16-channel ASIC chip, PARISROC 2 (Photomultiplier ARray Integrated in SiGe ReadOut Chip) is used in the analog signal processing and digitization. The digitized results are sent to the server by a user-defined User Datagram Protocol/Internet Protocol (UDP/IP) hardcore engine through Ethernet that is managed by a FPGA. A prototype electronics fulfilling the requirements of the Wide Field of View Cherenkov Telescope Array (WFCTA) of the Large High Altitude Air Shower Observatory (LHAASO) project has been designed, fabricated and tested to prove the concept of the design. A detailed description of the development with the results of the test measurements are presented. By using a new input structure and a new configuration of the ASIC, the dynamic range of the circuit is extended. A highly precise-time calibrating algorithm is also proposed, verified and optimized for the mass production. The test results suggest that the proposed electronics design fulfills the general specification of the future IACTs
