88 research outputs found
Dynamic Measurements of 1000 Microstrains Using Chirped-Pulse Phase-Sensitive Optical Time-Domain Reflectometry
No full text8 pags., 6 figs., -- Open Access funded by Creative Commons Atribution Licence 4.0This paper extends the capabilities of chirped-pulse phase-sensitive optical time-domain reflectometry to the measurement of large dynamic strains over hundreds of meters of standard single-mode fiber. Benefitting from single-shot strain measurements, this technique has already demonstrated dynamic strains of the order of submicrostrains with a sensitivity of picostrains-per-root-Hertz. Yet, for large dynamic strains, it relies on the accumulation of incremental measurements, where each trace is cross correlated with its predecessor to determine the relative change of strain. However, practical time records of measured high slew-rate applied perturbations contain disturbing outliers. We then detail and analyze a post-processing strategy to mitigate this limitation. Through this strategy, we are able to achieve for the first time (to our knowledge) high signal-to-noise Rayleigh-backscattering-based distributed measurements of large and fast dynamic strains of a longitudinally vibrating 4 m section at the end of 210 m of a single-mode fiber: from peak to peak 150-1190 ¿¿ at vibration frequency of 400 Hz and 50 Hz, respectively.The work of H. D. Bhatta was performed in the
framework of ITN-FINESSE, funded by the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie Action grant
agreement n.° 722509. Additional support was obtained from EC H2020 (project
DOMINO, ERANET Cofund Water Works 2014 call) and Spanish MINECO
(project DOMINO, project TEC2015-71127-C2-2-R and project RTI2018-
097957-B-C31), UAH (FPI contract) and Regional Program SINFOTON2-CM:
P2018/NMT-4326. (Corresponding author: Hari Datta Bhatta.
Contribution of Matrix, Fusion, Hemagglutinin, and Large Protein Genes of the CAM-70 Measles Virus Vaccine Strain to Efficient Growth in Chicken Embryonic Fibroblasts
No full text
Chemical Interesterification of Edible Oils and its Properties.
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Characterizing nature-based living labs from their seeds in the past
No full textNature-based living labs combine the elements of nature-based solution design with a living lab context to address social and environmental resilience challenges. There is a need to deepen insights on the characteristics of the emergent phenomenon of nature-based living labs, with respect to their predecessors. Accordingly, the paper first develops an outline of how living labs evolved into nature-based living labs, informed by bibliometric analysis. Second, the unique characteristics of nature-based living labs are identified using a systematic literature review. Finally, the core characteristics of living labs are determined, and nature-based living labs are placed within this context. Initial living labs had a strong technological focus, which proliferated into diverse application domains and regions after the European Network of Living Labs was established and expanded. Urban living labs emerged as a significant multidisciplinary and geographically specific domain, while nature-based living labs are inherently sustainability-oriented and consider ecosystem processes, interactions, and natural materials. Next, the paper identifies nine characteristics of nature-based living labs, five of which are always present, namely: (i) real-life spatial context and multi-scale, (ii) innovation and learning, (iii) user-centric, (iv) multi-actor involvement and (v) sustainability-oriented multiple benefits. Then, the four core characteristics of living labs, the variation within these characteristics, and how these align with the characteristics of nature-based living labs are clarified. Finally, the need for research on living labs across application domains and regions is highlighted, so that the global applicability of these local, user-centric, innovative approaches can be established.Multi Actor SystemsPolicy Analysi
HIV-related sexual risk behaviors among male-to-female transgender people in Nepal
No full textSummaryBackgroundTransgender women are a vulnerable and key risk group for HIV, and most research has shown an increased frequency of HIV infection among this minority population. This study examined the prevalence of HIV-related sexual risk behaviors and the socio-demographic correlates with HIV-related sexual risk behaviors among male-to-female (MtF) transgender persons.MethodsData were collected from a sample of 232 individuals through venue-based and snowball sampling and face-to-face interviews.ResultsThe HIV-related sexual risk behaviors among the MtF transgender persons were: sex without using a condom (48.3%; 95% confidence interval (CI) 41.8–54.8), unprotected anal sex (68.1%; 95% CI 62.0–74.2), and unprotected sex with multiple partners (88.4%; 95% CI 84.3–92.5). Statistically significant differences were found for age, income, education, alcohol habit, and sex with more than two partners per day for these three different HIV-related sexual risk behaviors. MtF transgender persons with a secondary or higher level of education were three times (OR 2.93) more likely to have unprotected sex with multiple partners compared to those with a primary level or no education.ConclusionsAge, education, income, frequency of daily sexual contact, and an alcohol habit remain significant with regard to HIV-related sexual risk behavior. There is an urgent need for programs and interventions to reduce risky sexual behaviors in this minority population
CBFM-2 International conference on community based approaches to fisheries management
No full textThe CBFM international conference held on 6th and 7th March 2007 in Dhaka, Bangladesh brought together policy makers, scientists and development practioners from all over the world to share experiences in co-mangement of complex wetland environments. This booklet includes abstracts of papers presented at the conference.Artisanal fishing, Wetlands, Inland fisheries, Fishery management, Women, Aquaculture, Reservoir fisheries, Fishery regulations, Legal aspects, Bangladesh, Sri Lanka, Zambia, Tanzania, Victoria L., Cambodia, Mekong R., India, Philippines, Iloilo I., Philippines, Negros I., Negros Occidental, Philippines, Visayan Is., Asia,
Mathematics and Society : Numbers and Measures in Early Modern South India
No full textInternational audienceThis book studies the regional tradition of mathematics in the Tamil-speaking areas of Southern India. It questions the established nature of Indian history of mathematics, which is based only on the Bhatta-Bhaskara tradition. Instead, it brings in practitioners like village accountants and school teachers as primary agents in the practice of mathematics. The author studies these hitherto unexplored historical sources and presents them in a new light. He talks about mathematics at the workplace, at the school, and at the village square in precolonial Tamil society. Finally, the author studies what happened to these practices when encountered by the colonial revenue administration and brings out a social history of mathematics in Indi
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