scholarly journals Method and tools for verification of cross-platform onboard software

2021 ◽  
Vol 1 (2) ◽  
pp. 82-93
Author(s):  
I.V. Kovalev ◽  
M.V. Saramud ◽  
V.V. Losev ◽  
A.A. Koltashev

The developed method and tools for verification and confirmation of onboard software are presented, which guarantee its compliance with all established functional and non-functional requirements throughout the entire life cycle of cross-platform onboard software. This approach allows not only to increase the fault tolerance of the control system software during operation, but also allows collecting statistics on the operation of software components in the process of real functioning of all subsystems. This information allows you to identify possible situations in which software failures appear, which allows you to develop more reliable software components in the future. The results of the operation of the version control function of the onboard software in the simulation environment are presented. The process of collecting statistics for identifying faulty versions is described.

2021 ◽  
Vol 1 (2) ◽  
pp. 22-33
Author(s):  
I.V. Kovalev ◽  
M.V. Saramud ◽  
V.V. Losev ◽  
A.A. Koltashev

The developed method and tools for verification and confirmation of onboard software are presented, which guarantee its compliance with all established functional and non-functional requirements throughout the entire life cycle of cross-platform onboard software. This approach allows not only to increase the fault tolerance of the control system software during operation, but also allows collecting statistics on the operation of software components in the process of real functioning of all subsystems. This information allows you to identify possible situations in which software failures appear, which allows you to develop more reliable software components in the future. The results of the operation of the version control function of the onboard software in the simulation environment are presented. The process of collecting statistics for identifying faulty versions is described.


2021 ◽  
Vol 118 (45) ◽  
pp. e2109381118
Author(s):  
Marcela Nouzova ◽  
Marten J. Edwards ◽  
Veronika Michalkova ◽  
Cesar E. Ramirez ◽  
Marnie Ruiz ◽  
...  

Methyl farnesoate (MF) plays hormonal regulatory roles in crustaceans. An epoxidated form of MF, known as juvenile hormone (JH), controls metamorphosis and stimulates reproduction in insects. To address the evolutionary significance of MF epoxidation, we generated mosquitoes completely lacking either of the two enzymes that catalyze the last steps of MF/JH biosynthesis and epoxidation, respectively: the JH acid methyltransferase (JHAMT) and the P450 epoxidase CYP15 (EPOX). jhamt−/− larvae lacking both MF and JH died at the onset of metamorphosis. Strikingly, epox−/− mutants, which synthesized MF but no JH, completed the entire life cycle. While epox−/− adults were fertile, the reproductive performance of both sexes was dramatically reduced. Our results suggest that although MF can substitute for the absence of JH in mosquitoes, it is with a significant fitness cost. We propose that MF can fulfill most roles of JH, but its epoxidation to JH was a key innovation providing insects with a reproductive advantage.


2021 ◽  
Author(s):  
Chenkun Yang ◽  
Shuangqian Shen ◽  
Shen Zhou ◽  
Yufei Li ◽  
Yuyuan Mao ◽  
...  

The article describes the current task of developing and improving existing technologies for machine maintenance throughout the entire life cycle. The use of modern achievements in the field of computer technology, digitization of information, as well as the development of artificial intelligence technologies, will allow you to get new scientific and engineering results aimed at managing the technical condition of machines in operation.


2016 ◽  
Vol 20 (3) ◽  
pp. 125-134
Author(s):  
Aleksander Marek ◽  
Piotr Kardasz ◽  
Mikolaj Karpinski ◽  
Volodymyr Pohrebennyk

AbstractThis paper presents the logistic system of fuel life cycle, covering diesel oil and the mixture of rapeseed oil and butanol (2:3 ratio), using the Life-Cycle Assessment (LCA) method. This method is a technique in the field of management processes with a view to assessing the potential environmental hazards. Our intention was to compare the energy consumption needed to produce each of the test fuels and emissions of selected substances generated during ithe production process. The study involved 10,000 liters of diesel and the same amount of rapeseed oil and butanol mixture (2:3 ratio). On the basis of measurements the following results were obtained. To produce a functional unit of diesel oil (i.e. 10,000 liters) it is necessary to extract 58.8 m3 of crude oil. The entire life cycle covering the consumption of 10,000 liters of diesel consumes 475.668 GJ of energy and causes the emission to air of the following substances: 235.376 kg of COx, 944.921 kg of NOx, 83.287 kg of SOx. In the ease of a functional unit, to produce a mixture of rapeseed oil and butanol (2:3 ratio) 10,000 kg of rapeseed and 20,350 kg of straw should be used. The entire life cycle of 10,000 liters of a mixture of rapeseed oil and butyl alcohol (2:3 ratio) absorbs 370.616 GJ of energy, while emitting the following air pollutants: 105.14832 kg of COx, 920.03124 kg of NOx, 0.162 kg of SOx. Analysis of the results leads to the conclusion that it is oil refining which is the most energy-intensive and polluting process in the life cycle of diesel. The process consumes 41.4 GJ of energy, and causes a significant emission of sulfur oxides (50 kg). In the production of fuel that is a mixture of rapeseed oil and butyl alcohol (2:3 ratio), rape production is the most energy-intensive manufacturing process is (absorbs 53.856 GJ of energy). This is due to the long operation time of the farm tractor and combine harvester. The operation of these machines leads also to the emission of a significant amount of pollution in the form of COx (2.664 kg) and NOx (23.31 kg).


2002 ◽  
Vol 55 ◽  
pp. 308-311
Author(s):  
X.Z. He ◽  
Q. Wang ◽  
A. Carpenter

The induction of reproductive diapause of Nysius huttoni was studied in the laboratory at 20 1C and 60 10 RH under a series of photoperiod regimes 168 h 1410 h 1212 h and 1014 h lightdark Reproductive diapause was considered to have occurred if females failed to lay eggs for 50 days after emergence The sensitivity of different life stages to diapauseinducing photoperiods varied When newly emerged females whose immature stages had been reared at 168 h were transferred to 1014 h and 1212 h 467 and 793 of them entered reproductive diapause respectively However when fifth instar nymphs were transferred from 168 h to 1014 h and 1212 h 100 of adult females entered reproductive diapause If the entire life cycle was maintained at 1014 h and 1212 h 667 and 400 of females entered reproductive diapause respectively The critical photoperiod for reproductive diapause was estimated to lie between 1311 h and 135105 h


Author(s):  
Dheeraj Chhillar ◽  
Kalpana Sharma

<span>There are various root causes of software failures. Few years ago, software used to fail mainly due to functionality related bugs. That used to happen due to requirement misunderstanding, code issues and lack of functional testing. A lot of work has been done in past on this and software engineering has matured over time, due to which software’s hardly fail due to functionality related bugs. To understand the most recent failures, we had to understand the recent software development methodologies and technologies. In this paper we have discussed background of technologies and testing progression over time. A survey of more than 50 senior IT professionals was done to understand root cause of their software project failures. It was found that most of the softwares fail due to lack of testing of non-functional parameters these days. A lot of research was also done to find most recent and most severe software failures. Our study reveals that main reason of software failures these days is lack of testing of non-functional requirements. Security and Performance parameters mainly constitute non-functional requirements of software. It has become more challenging these days due to lots of development in the field of new technologies like Internet of things (IoT), Cloud of things (CoT), Artificial Intelligence, Machine learning, robotics and excessive use of mobile and technology in everything by masses. Finally, we proposed a software development model called as T-model to ensure breadth and depth of software is considered while designing and testing of software. </span>


2014 ◽  
pp. 979-991
Author(s):  
Georgia Tsiliki ◽  
Manolis Tzagarakis ◽  
Spyros Christodoulou ◽  
Sophia Kossida ◽  
Nikos Karacapilidis

Web 2.0 technologies applications have been suggested as potential enablers for the accumulation of multidisciplinary knowledge, for instance in the biomedical field. Such applications offer new ways of creating, collaborating and sharing user-generated content online. Under this context, the authors' present an innovative Web 2.0 approach that exploits prominent high-performance computing paradigms and large data processing technologies to meaningfully search, analyze and aggregate data existing in diverse, extremely large and rapidly evolving sources. The underlying tool is designed to support the entire life cycle of a biomedical collaboration, with specifically implemented services. Preliminary evaluation results are also presented and discussed.


Author(s):  
Pushpa S. Murthy ◽  
Nivas Manohar Desai ◽  
Siridevi G. B.

Agricultural waste is not only a sustainability problem related to food security but also an economic problem since it has a direct impact on the profitability of entire food supply chain. Sustainable management of agricultural waste is a systematic approach towards reducing waste and its allied impacts over the entire life cycle, starting with the use of natural resources, production, sales, and consumption, and ending either with final disposal or recovery. Management of agro-waste focuses on three main aspects (i.e., recycle, reuse, and reduce [R3]). Building on this familiar concept of “R3” will impact environmental protection and more fully recognize the impacts of the food and agriculture wasted. Thus, in the chapter, the authors highlight the sustainable utilization of waste generated from coffee and cocoa processing for the development of value-added products.


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