Life cycle of the software of engineering objects

The paper is devoted to the analysis of the software life cycle of engineering objects. To implement the processes and relevant procedures aimed at ensuring, as well as maintaining proper management of the level of software quality at the stages of the life cycle, it is proposed to use the life cycle model as a methodological basis for achieving the goal - achieving the proper level of consumer quality of the final product, taking into account the conditions and circumstances. exploitation.. The considered model of the life cycle in the framework of software engineering is a structure that determines the sequence of implementation and relationships of processes and procedures of a different nature that may arise when performing any actions in relation to software, from the emergence of a need for this software and ending with its final withdrawal from use. If necessary, the life cycle model has a relationship with the content, scale and complexity of the corresponding project, on the characteristics of the conditions and circumstances under which a particular software is created and operated. At the same time, the existence of a life cycle model, carefully developed at the same time, adequate to the existing conditions and circumstances, is the basis for the implementation of general quality management within the framework of a program project, which at this point in time is stipulated as a methodological basis for obtaining a project at the output of an object that meets the presented requirements and modern quality standards. The main reasons for the need to pay special attention to modeling the life cycle of the software being developed and the component of the environment surrounding the software at different stages of its life cycle, taking into account the life cycle of material engineering objects, are presented. Taking into account the presented concept of the life cycle implementation in some virtual enterprise, the software sequentially performs the transition from one state to the next, from consumer properties specified by the customer to an already finished software product and quite real consumer properties supported by the corresponding characteristics, this software is in operation to moral aging, and also goes into a state characterized by the modernization or removal of this software from use. Key words: software, engineering object, software life cycle model, software development, engineering activities

The Engineering Pedagogy Evolution: The Foundation and Three Measurements

The status, subject area and structure of engineering pedagogy are still at the center of the academic and scientific community. It develops as a professional pedagogy section, although it tended to be viewed as an educational module, as a field of teacher practical activity. The role of engineering pedagogy in developing engineering thinking should become increasingly important, taking into account the integration processes – inter-disciplinary, inter-subject, trans-professional, and the transformations in the industrial sphere in general and in engineering in particular. The transfer of its accumulated experience and ideas to new application areas can enrich other branches of knowledge with ideas, principles and cognitive approaches. Both methods of acquiring scientific knowledge and heuristic and practical technologies are equally essential for the system of continuous fundamental engineering and technical education development. Engineering pedagogy’s goals revision and clarification lead to a multidimensional space for engineering thinking development, including training of engineering educators for a lifelong learning system. Based on the general foundations and laws of pedagogy, three measurements of engineering pedagogy enable to reveal its interdisciplinary strategy in different subject areas. Engineering pedagogy can participate in various formats– as teacher training technology both for school and university teachers.

Research on Application of Computer Recognition Technology in C Language Programming Modeling System

C language programming is more and more favoured by the majority of technical personnel in embedded systems. The application of C language technology in computer software programming can effectively avoid unnecessary language logic problems, ensure the smooth progress of programming work and effectively improve the quality and efficiency of programming. For the development of C language embedded system, the programming ideas of system software are explained, the functional module division based on hierarchical design is given, and the realization methods of project organization, program framework design, module reuse design, etc. in the software development process are clarified. To solve the contradiction between C language flexibility and application development engineering. Although it is introduced for the ARM platform, the basic experience and algorithms are also suitable for software design on other embedded platforms.

METROLOGY APPLICATIONS IN CHEMICAL ENGINEERING: A BRIEF REVIEW

Metrology, while often confused with the science of measuring weather (meteorology), is a very widely used field. Metrology is mainly concerned with (i) establishing the units of measurements, reproducing these units in the form of standards, and ensuring the uniformity of measurements, (ii) developing methods of measurement, analysing the accuracy of methods of measurement, establishing uncertainty of measurement, researching into the causes of measuring errors, and eliminating these. Although as engineers and scientists, we make use of measurement to quantify the physical and chemical properties of objects, and design systems to conform to standards based on unit of measurement, the principles of measurement science (metrology) is not too familiar to most engineers and scientists. The focus of this brief review is to bring to fore the (i) meaning and definitions of metrology, (ii) importance of measurement, and (iii) the importance of metrology applications in chemical engineering and engineering in general. Key words: Metrology, measurement, process control, process development, engineering design.

Experimental study of shale drillability with different bedding inclinations under varying wellbore pressure conditions

In the practice of shale gas development engineering, it is important to understand the physical and mechanical properties of shale. The bedding inclinations of shale are known to significantly influence its physical and mechanical properties. This study mainly examined the influence of bedding inclinations on drillability under different wellbore pressures. The bedding inclinations used in this study varied from 0° to 90°, with a gradient of 15°. The wellbore pressure values used varied from 0 to 25 MPa, with a gradient of 5 MPa. The results show that the drillability index of shale increases exponentially with increasing wellbore pressure at different bedding inclinations. The proposed exponential empirical model can describe the relationship between the drillability index and wellbore pressure. When the wellbore pressure is less than 15 MPa, bedding inclinations significantly influence the drillability index, and the drillability index of shale shows a “W”-type variation trend as the bedding inclinations increase in the range of 0° to 90°. The influence of bedding inclinations on drillability decreases gradually with increasing wellbore pressure. When the wellbore pressure increases to 25 MPa, the impact of bedding inclinations on drillability is virtually undetectable. The results of this study can provide reasonably insight into the effect of bedding inclinations on shale deformation under the drill bit, and useful prediction for the drillability index under in situ conditions.

High specificity antibodies and detection methods for quantifying phosphorylated tau from clinical samples

The ability to measure total and phosphorylated tau levels in clinical samples is transforming the detection of Alzheimer’s disease (AD) and other neurodegenerative diseases. In particular, recent reports indicate that accurate detection of low levels of phosphorylated tau (p-tau) in plasma provides a reliable biomarker of AD long before sensing memory loss. Therefore, the diagnosis and monitoring of neurodegenerative diseases progression using blood samples is becoming a reality. These major advances were achieved by using antibodies specific to p-tau as well as sophisticated high sensitivity immunoassay platforms. This review focuses on these enabling advances in high-specificity antibody development, engineering, and novel signal detection methods. We will draw insights from structural studies on p-tau antibodies, engineering efforts to improve their binding properties, and efforts to validate their specificity. A comprehensive survey of high-sensitivity p-tau immunoassay platforms along with sensitivity limits will be provided. We conclude that although robust approaches for detecting certain p-tau species have been established, systematic efforts to validate antibodies for assay development is still needed for the recognition of biomarkers for AD and other neurodegenerative diseases.