10,027 research outputs found
The Gravitational-wave Optical Transient Observer (GOTO)
No full textThe Gravitational-wave Optical Transient Observer (GOTO) is a wide-field telescope project focused on detecting optical counterparts to gravitational-wave sources. GOTO uses arrays of 40 cm unit telescopes (UTs) on a shared robotic mount, which scales to provide large fields of view in a cost-effective manner. A complete GOTO mount uses 8 unit telescopes to give an overall field of view of 40 square degrees, and can reach a depth of 20th magnitude in three minutes. The GOTO-4 prototype was inaugurated with 4 unit telescopes in 2017 on La Palma, and was upgraded to a full 8-telescope array in 2020. A second 8-UT mount will be installed on La Palma in early 2021, and another GOTO node with two more mount systems is planned for a southern site in Australia. When complete, each mount will be networked to form a robotic, dual-hemisphere observatory, which will survey the entire visible sky every few nights and enable rapid follow-up detections of transient sources
Angaria neglecta Poppe & Goto 1993
No full textneglecta, Angaria Poppe & Goto, 1993 Angaria neglecta Poppe & Goto, 1993: 22 (pl. 6). Gastropoda, Angariidae Paratype: MZSP 95951. Locality: Japan, Wakayama prefecture, Nada-Cho, 510 fms. Preservation: Dry. Remarks: Former Jens Hemmen Collection. The specimen listed above was initially designated as paratype # 12 in the original description. The senior author (Poppe, pers. comm.) confirmed the type status.Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on page 38, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/384012
Factors responsible for the limited inland extent of sand deposits on Leyte Island during 2013 Typhoon Haiyan
No full textPrevious geological studies suggest that the maximum inland extent of storm-induced sand deposits is shorter, but their thickness is larger, than those of tsunami-induced sand deposits. However, factors that determine the maximum extent and thickness of storm deposits are still uncertain. We conducted numerical simulations of storm surge, waves, and sediment transport during Typhoon Haiyan in order to understand the distribution and sedimentary processes responsible for storm deposits. Numerical results showed that wave-induced currents slightly offshore were strong, but attenuated rapidly in the inland direction after wave breaking. Therefore, sediments were not transported far inland by waves and storm surge. Consequently, the maximum inland extent of storm deposits was remarkably shorter than the inland extent of inundation. We also revealed that vegetation (roughness coefficient) and typhoon intensity greatly affect the calculation of maximum extent and thickness distribution of storm deposits. As the duration of wave impact on a coast is relatively long during a storm (hours, compared to minutes for a tsunami), sediments are repeatedly supplied by multiple waves. Therefore, storm deposits tend to be thicker than tsunami deposits, and multiple layers can form in the internal sedimentary structure of the deposits. We infer that limitation of the sand deposit to within only a short distance inland from the shoreline and multiple layers found in a deposit can be used as appropriate identification proxies for storm deposits
Harmonizing Biodiesel Fuel Standards in East Asia: Current Status, Challenges and Way Forward
No full textAbstract: This paper discusses the development of and policy towards biodiesel fuel (BDF) in the East Asia Summit (EAS) Region (hereafter East Asia), with a focus on activities related to harmonizing BDF standards. It finds that the EAS countries have actively promoted the development of BDF for a variety of reasons. To minimize problems with engines arising from the use of BDF, most EAS countries have established their national BDF standards. However, these diverse standards cause barriers for BDF trade and act against the regional interest in maximizing benefits from BDF production and utilization. Therefore, the EAS policy makers decided to harmonize BDF standards, and a regional benchmark standard has been published. Through a comparative review of existing national standards against the benchmark, it finds that the harmonization is beneficial economically and environmentally, and is technically feasible but practically stalled due to the lack of political determination. Therefore, among a few policy implications, the key message to deliver is a call for political determination to implement the harmonization in the EAS region. Since harmonization of BDF standards has been tried in other regions, the findings of this paper may supplement the literature, enhance understanding of the EAS case, and provide lessons and implications that may be helpful in advancing similar harmonization elsewhere.
The Gravitational-wave Optical Transient Observer (GOTO)
No full textThe Gravitational-wave Optical Transient Observer (GOTO) is a wide-field telescope project focused on detecting optical counterparts to gravitational-wave sources. Each GOTO robotic mount holds eight 40 cm telescopes, giving an overall field of view of 40 square degrees. As of 2022 the first two GOTO mounts have been commissioned at the Roque de los Muchachos Observatory on La Palma, Canary Islands, and construction of the second node with two additional 8-telescope mounts has begin at Siding Spring Observatory in New South Wales, Australia. Once fully operational each GOTO mount will be networked to form a robotic, multi-site observatory, which will survey the entire visible sky every two nights and enable rapid follow-up detections of transient sources
Developing the GOTO telescope control system
No full textThe Gravitational-wave Optical Transient Observer (GOTO) is a wide-field telescope project focused on detecting optical counterparts to gravitational-wave sources. The GOTO Telescope Control System (G-TeCS) is a custom robotic control system which autonomously manages the GOTO telescope hardware and nightly operations. Since the commissioning the GOTO prototype on La Palma in 2017, development of the control system has focused on the alert handling and scheduling systems. These allow GOTO to receive and process transient alerts and then schedule and carry out observations, all without the need for human involvement. GOTO is ultimately anticipated to include multiple telescope arrays on independent mounts, both on La Palma and at a southern site in Australia. When complete these mounts will be linked to form a single multi-site observatory, requiring more advanced scheduling systems to best optimise survey and follow-up observations
Materials on Awa-koku Hudoki in the Archives of historical documents of Goto
No full textTokusima-Han started a project of compiling Awa-koku Hudoki (chorography of present Tokusima-Prefecture)in ca 1869. The Archives of historical documents of Goto, Naruto University of Education, contains 23 documents on this project. These documents were written by Goto Hisatoyo, who was a member of the project. This author classified the documents into two types, namely, documents on the formal aspects of the project and substantial materials for the chorography. The author introduced the latter in this paper.departmental bulletin pape
Dysferlin mutation analysis in a group of Italian patients with limb-girdle muscular dystrophy and Miyoshi myopathy
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Psychometric properties of Scientific Reasoning Scale in Japanese
No full textThis is the supplementary information for the manusctipt "Goto, T., Shiose, T., & Kano, K. (2023). Psychometric properties of Scientific Reasoning Scale in Japanese. Annals of Educational Studies Osaka University, 28
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