A System for Measurement and Analysis of Aircraft Noise Impacts

The Metroplex Overflight Noise Analysis (MONA) project seeks to measure, analyze, and archive the ground noise generated by aircraft overflights and to provide accurate and actionable data for a variety of different purposes. On the one hand, experimental datasets collected and processed by the MONA system can serve as an openly-available database for validation and verification (V&V) of improved noise prediction methods. On the other, study conclusions derived from both the experimental and computational data can serve to inform technical discussions and options involving aircraft noise, aircraft routes, and the potential impacts of the FAA’s NextGen procedure changes on overflown communities at varying distances from the airport. Given the complex interdependencies between the noise levels perceived on the ground and the air-traffic patterns that generate the aircraft noise, a secondary goal of the MONA project is to share, through compelling visualizations, key results with broad communities of stakeholders to help generate a common understanding and reach better decisions more quickly. In this paper, we focus on the description of the MONA system architecture, its design, and its current set of capabilities. Subsequent publications will focus on the results we are obtaining though the use of the MONA system.

Designing, Realizing, Running, and Evaluating Virtual Museum – a Survey on Innovative Concepts and Technologies

This paper presents a survey of innovative concepts and technologies involved in virtual museums (ViM) that shows their advantages and disadvantages in comparison with physical museums. We describe important lessons learned during the creation of three major virtual museums between 2010 and 2020 with partners at universities from Armenia, Germany, and Chile. Based on their categories and features, we distinguish between content-, communication- and collaboration-centric museums with a special focus on learning and co-curation. We give an overview of a generative approach to ViMs using the ViMCOX metadata format, the curator software suite ViMEDEAS, and a comprehensive validation and verification management. Theoretical considerations include exhibition design and new room concepts, positioning objects in their context, artwork authenticity, digital instances and rights management, distributed items, private museum and universal access, immersion, and tour and interaction design for people of all ages. As a result, this survey identifies different approaches and advocates for stakeholders’ collaboration throughout the life cycle in determining the ViM's direction and evolution, its concepts, collection type, and the technologies used with their requirements and evaluation methods. The paper ends with a brief perspective on the use of artificial intelligence in ViMs.

Validation of Modification of Volumetric Methode of Determination of Sn (Tin) Concentration on Tin Concentrates

The analysis techniques for determining the concentration of Stanum (Sn) in Tin Concentrate has been developing since the 19th century. Various methods and analysis techniques are to find the most effective and efficient method enabling to achieve optimal results. In this study, a modification of the classic volumetric method that has been used includes modifications to the use of materials and tools in the analysis. In this study, validation and verification of the modified method was also carried out by determining the value of the parameters of Precision, Accuracy, Method of Detection Limit (MDL) and the Ruggedness and Robustness of the method and comparing the acceptability value based on the existing provisions. on the EURACHEM guide. After performing 25 tests using the NCS DC 35002 Certified Reference Material, it was revealed the value of the parameters for the Precision/Relative Standard Deviation (RSD) to be 0.21% (<0.5 CV Horwitz), the accuracy value is 99.9% with bias 0.06%, the MDL values for Minimum Detection Limit (MDL) and Limit of Quantification (LOQ) are 0.4% and 1.32%, respectively. The value of the ruggedness and robustness of the method was carried out by testing at different times and by different analysts and obtained RSD 0.22% (<2/3 CV Horwitz). From the values of the parameters obtained, it can be concluded that the modification of this method fulfills the acceptance value required by EURACHEM.

CBCIoT: A Consensus Algorithm for Blockchain-Based IoT Applications

Internet of things is widely used in the current era to collect data from sensors and perform specific tasks through processing according to the requirements. The data collected can be sent to a blockchain network to create secure and tamper-resistant records of transactions. The combination of blockchain with IoT has huge potential as it can provide decentralized computation, storage, and exchange for IoT data. However, IoT applications require a low-latency consensus mechanism due to its constraints. In this paper, CBCIoT, a consensus algorithm for blockchain-based IoT applications, is proposed. The primary purpose of this algorithm is to improve scalability in terms of validation and verification rate. The algorithm is developed to be compatible with IoT devices where a slight delay is acceptable. The simulation results show the proposed algorithm’s efficiency in terms of block generation time and transactions per second.

Model-driven system-level validation and verification on the space software domain

The development process of on-board software applications can benefit from model-driven engineering techniques. Model validation and model transformations can be applied to drive the activities of specification, requirements definition, and system-level validation and verification according to the space software engineering standards ECSS-E-ST-40 and ECSS-Q-ST-80. This paper presents a model-driven approach to completing these activities by avoiding inconsistencies between the documents that support them and providing the ability to automatically generate the system-level validation tests that are run on the Ground Support Equipment and the matrices required to complete the software verification. A demonstrator of the approach has been built using as a proof of concept a subset of the functionality of the software of the control unit of the Energetic Particle Detector instrument on-board Solar Orbiter.

METROLOGICAL SUPPORT OF PETROLEUM PRODUCT TESTING FOR PURPOSES OF CONFORMITY ASSESSMENT

С использованием методов системного анализа обоснована системная цель метрологического обеспечения испытаний нефтепродуктов – получение точной, полной и достоверной измерительной информации о составе и свойствах нефтепродуктов, которая достигается через решение двух частных целей: а) создание условий для получения результатов испытаний с требуемой точностью; б) достижение такого состояния процесса испытаний, которое обеспечивало бы получение точной и достоверной измерительной информации о составе и свойствах нефтепродуктов. Раскрытие первой и второй частных целей образует структуру системы метрологического обеспечения испытаний нефтепродуктов, представляющую собой совокупность традиционных элементов и процессов метрологического обеспечения и процедур управления процессом испытаний нефтепродуктов. В разработанной структуре системы метрологического обеспечения испытаний нефтепродуктов используются как известные общепризнанные элементы и процессы метрологического обеспечения, так и новые элементы и процессы, отражающие специфику процесса испытаний как объекта метрологического обеспечения. В частности, для подтверждения метрологической пригодности методик испытаний нефтепродуктов предложено использовать процедуры валидации и верификации, показана необходимость верификации операторов, проводящих испытания. В целях снижения погрешности испытаний нефтепродуктов обоснована необходимость включения в систему метрологического обеспечения мероприятий по управлению процессом испытаний нефтепродуктов в лаборатории. Показана такая последовательность действий по метрологическому обеспечению испытаний нефтепродуктов, которая позволяет добиться такого состояния процесса испытаний, в котором погрешность получаемых результатов находится в определенных статистически обоснованных границах, а достоверность результатов испытания подтверждается стабильностью значений погрешности. Applying the methods of system analysis, the system goal of metrological support for petroleum product testing is justified; the goal is to obtain accurate, complete, reliable measurement information about the composition and properties of petroleum products, which is achieved via solving two subgoals: а) creating conditions for obtaining the testing results having the required accuracy; б) achieving such a state of the testing progress that would ensure the receipt of accurate and reliable measurement information about the petroleum product composition and properties. The disclosure of the first and second subgoals forms the structure of the metrological support system intended for testing of petroleum products, which is a complex of conventional elements and processes of metrological support and procedures for controlling the process of petroleum product testing. In the structure of the metrological support system under development purposed for petroleum product testing, both well-known and generally recognized elements and processes of metrological support, as well as new elements and processes that capture the specific features of the testing process as a subject of metrological support. In particular, it is proposed to use validation and verification procedures to confirm the metrological applicability of testing methods intended for petroleum products, and the need for verification of operators, who carry out the tests, is given. In order to reduce the petroleum testing inaccuracy, the need to include measures to control the process of petroleum product testing in a lab by way of the metrological support system is justified. The following sequence of actions for metrological support of petroleum products testing is shown; it allows achieving such a state of the testing process, in which the tolerance of the obtained results is within certain statistically adjusted limits and the reliability of the test results is confirmed by the stability of the tolerance values.

Reliability of Electronic Drivers: An Industrial Approach

Reliability of electronic drivers, or systems, is crucial for the business of Signify. We manufacture and sell more than a million drivers per year. Field returns taught us what failure modes are important, but this is not sufficient to provide lifetime claims for our products. Being in this business for almost a century, in order to provide detailed lifetime claims, we have established an internal reliability tool. This tool provides our designers the correct information for flawless driver development. The specially developed Electronics Reliability Tool (ERT) uses on the one hand FIT tables provided by handbooks like e.g., Telcordia and on the other hand also considers wear-out mechanisms due to e.g., lightning strikes. Validation and verification of our predictions is performed by collecting sold quantities, field returns, do extensive failure analysis and compare these values with calculated ones. Each internally designed driver is subjected to an ERT calculation. The forecasted lifetime is used as a yard stick to witness the drivers’ targeted lifetime. In our presentation we will demonstrate the tool. In this paper, we describe details of how ERT calculates failure rates. We will also present the comparison between field performance and calculated values of our electronic drivers.

VERIFIKASI METODE ANALISIS METAMFETAMINA DAN AMFETAMINA DALAM MATRIKS URIN SECARA AUTOMATISASI DENGAN GERSTEL® DISPOSABLE PIPETTE EXTRACTION (DPX) MULTIPURPOSE SAMPLER (MPS)

Method analytical validation and verification is crucial in routine qualitative and quantitative analysis. Analysis laboratory need objective evidences about specific parameters in their drugs/analytes or drugs metabolites in matrices biology. Urine is the most preferable matrix biology for determining drugs metabolites especially in drug abuses cases because urine’s sampling process is not invasive. There are many methods extracting drugs in urine, especially methamphetamine and amphetamine as those two analytes are excreted via urine. This study presented method verification for determination of methamphetamine and amphetamine in urine using Gerstel® automated Disposable Pipette Extraction (DPX) Multipurpose Sampler (MPS). Result of this study showed that retention time of methamphetamine is in minute 6.21, and amphetamine is in minute 3.15. Methampethamine’s curve displayed a coefficient of determination r2=0,9999 with the equation y=170,19x+33183. The equation of amphetamine showed y=44390x – 17513 with coefficient of determination r2= 0,9974. Limit of detection (LOD) of methamphetamine in urine is 59,73 ppb, and LOD of amphetamine is 36 ppb.