7 research outputs found
DevOps and its Philosophy : Education Matters!
DevOps processes comply with principles and offer practices with main objective to support efficiently the evolution of IT systems. To be efficient a DevOps process relies on a set of integrated tools. DevOps is among the first competencies together with Agile method required by the industry. As a new approach it is necessary to develop and offer to the academy and to the industry training programs to prepare our engineers in the best possible way.
In this chapter we present the main aspects of the educational effort made in the recent years to educate to the concepts and values of the DevOps philosophy. This includes principles, practices, tools and architectures, primarily the microservices architectural style, which shares many aspects of DevOps approaches especially the modularity and flexibility which enables continuous change and delivery. Two experiences have been made, one at academic level as a master program course and the other, as an industrial training.
Based on those two experiences, we provide a comparative analysis and some proposals in order to develop and improve DevOps education for the future
Standardization of requirements to operation of buildings and facilities
Safe operation, reliability and durability of capital facilities (hereinafter – CF) are becoming more and more topical.
All phases except operation (including all types of maintenance and repairs) and demolition were covered by regulatory requirements, while operation as the longest phase in CF life and the final stage - demolition were not included into regulations until recently. There were industry specific codes for nonproduction and industrial buildings and facilities and documents derived from them, but they were inconsistent, lead time to repair differed even for similar structures and operation conditions and these discrepancies did not allow setting the specific frequency of repairs which resulted in neglected defects and damages shortening the life of buildings and structures or causing accidents.
In 2015, the authors, in team with other experts, developed SP 255.1325800.2016 “Buildings and structures. Rules of operation. Key provisions” (hereinafter - SP 255), setting general requirements to operation of buildings and structures under regular conditions, but the diversity of buildings’ functions required the development of numerous codes of practice derived from SP 255 and some of them were drafted in 2016-2018.
Codes of operation practice will (if elaborated) contribute to the reduction of operation and maintenance costs and ensure required safety of capital facilities
Late Pleistocene and Holocene vegetation and climate on the northern Taymyr Peninsula, Arctic Russia
Measurement of the branching fractions for Cabibbo-suppressed decays and at Belle
International audienceWe present measurements of the branching fractions for the singly Cabibbo-suppressed decays and , and the doubly Cabibbo-suppressed decay , based on 980 of data recorded by the Belle experiment at the KEKB collider. We measure these modes relative to the Cabibbo-favored modes and . Our results for the ratios of branching fractions are , , and , where the uncertainties are statistical and systematic, respectively. The second value corresponds to , where is the Cabibbo angle; this value is larger than other measured ratios of branching fractions for a doubly Cabibbo-suppressed charm decay to a Cabibbo-favored decay. Multiplying these results by world average values for and yields , , and , where the third uncertainty is due to the branching fraction of the normalization mode. The first two results are consistent with, but more precise than, the current world averages. The last result is the first measurement of this branching fraction
Measurement of branching fractions of and at Belle
We present a study of a singly Cabibbo-suppressed decay and a Cabibbo-favored decay based on 980 of data collected by the Belle detector, operating at the KEKB energy-asymmetric collider. We measure their branching fractions relative to : and . Combining with the world average , we have the absolute branching fractions: and . The first and second uncertainties are statistical and systematic, respectively, while the third ones arise from the uncertainty on . The mode is observed for the first time and has a statistical significance of . The branching fraction of has been measured with a threefold improvement in precision over previous results and is found to be consistent with the world average
Test of light-lepton universality in decays with the Belle II experiment
International audienceWe present a measurement of the ratio of branching fractions of the lepton decaying to muons or electrons using data collected with the Belle II detector at the SuperKEKB collider. The sample has an integrated luminosity of 362 fb at a centre-of-mass energy of 10.58 GeV. Using an optimised event selection, a binned maximum likelihood fit is performed using the momentum spectra of the electron and muon candidates. The result, , where the first uncertainty is statistical and the second is systematic, is the most precise to date. It provides a stringent test of the light-lepton universality, translating to a ratio of the couplings of the muon and electron to the boson in decays of , in agreement with the standard model expectation of unity