Requirements in engineering

This research investigates a means of negating such shortcomings and reaping the benefits of both LPBF additive manufacturing and traditional manufacturing methods by joining such parts together using laser welding in the autogenous mode (no fillers required). Based on the literature review conducted in this field and the gaps identified, a two-stage methodology was utilised, as per following.

191p runthenight04 02-02-2023 0 0   Download

The preferred method for disposal of used nuclear fuel is underground emplacement in a Deep Geological Repository (DGR). Many countries have light water reactor fuels which require large Used Fuel Container or Canister (UFC) designs weighing up to 25 ton for containment.

10p vironald 15-12-2022 8 1   Download

The new reactor concepts proposed in the Generation IV International Forum require the development and validation of new components and new materials. Inside the Collaborative Project on the European Sodium Fast Reactor, several accidental scenario have been studied.

9p vironald 15-12-2022 7 1   Download

In the event of a complete Station Blackout (SBO) of a CANDU reactor, the current safety practice is to initiate depressurization early in the transient once a lack of power has been declared. This requires operator actions to manually open the main steam safety valves (MSSVs) on the secondary side initiating a crash-cool procedure.

19p vironald 15-12-2022 6 1   Download

The objective of this article is to study the activities and special characteristics of graphite and Fluental neutron moderator material in FiR1 TRIGA Mark II type research reactor in Finland. Quantifying the nuclide vector and total activities of decommissioning waste is a legal requirement and provides input to many other aspect of decommissioning project.

9p vironald 15-12-2022 4 1   Download

In this study, an optimization of the canister loading for used nuclear fuels is performed, solely based on their decay heat values. By taking into account the individual irradiation history for each fuel assembly, as well as with a number of assumptions on the number of used fuels to be disposed, this study indicates that a canister filling fraction of 94% is achievable for both PWR and BWR fuel, thus lowering the number of required canisters compared to a previous study.

11p vironald 15-12-2022 8 2   Download

Westinghouse type plants in the United States (US) and Europe have a manual trip procedure of the reactor coolant pumps (RCP) in the case of a small break Loss of Coolant Accident (LOCA) with the high pressure injection (HPI) system functioned. This is in response to the Three Mile Island (TMI) accident in order to maintain as much the forced core cooling as possible.

6p vironald 15-12-2022 6 1   Download

The analyses of hypothetical accident scenario in various containment designs include the evaluation of the effectiveness of Passive Autocatalytic Recombiners (PARs), which are installed to mitigate the hydrogen risk, or are considered by utilities for retro-fitting the plants to implement revised regulatory requirements motivated by the Fukushima accident.

16p vironald 15-12-2022 5 1   Download

Leak-before-break assessments of piping in nuclear power plants require an accurate prediction of leakage rates through thin slits and the understanding of uncertainties. Two test rigs at the University of Stuttgart are dedicated to the measurement of flow rates in the order of the typical leak monitoring specification of 1 gal/min.

11p vironald 15-12-2022 6 1   Download

This paper presents the use of Matlab software to build data processing algorithms for level 2 Box-Hunter planning with 3 input parameters to find the regression equation, creating a basis for developing user interface to show the required graph.

4p vilexus 30-09-2022 6 1   Download

Part 2 of the book "Software Architecture in Practice (Third Edition)" provide students with knowledge about: architecture in the life cycle; architecture in agile projects; architecture and requirements; documenting software architectures; architecture, implementation, and testing; architecture reconstruction and conformance; architecture evaluation; management and governance; economic analysis of architectures;...

329p britaikridanik 05-07-2022 19 2   Download

The paper aims to detail the procedure of selecting and scaling recorded seismic accelerations according to requirements specified by TCVN-9386:2012. The target response spectrum and the fundamental vibration period of the considered structure are critical factors for the selecting and scaling process.

13p haoasakura 30-05-2022 6 1   Download

This study proposes an alternative approach based on the deep learning paradigm working in a complementary way with conventional methods such as the finite element method for quickly forecasting the responses of structures under random wind loads with reasonable accuracy. The approach works in a sequenceto-sequence fashion, providing a good trade-off between the prediction performance and required computation resources.

11p haoasakura 30-05-2022 27 1   Download

Lecture Software engineering: Lesson 18 - Fakhar Lodhi. The main topics covered in this chapter include: POS requirements, logging information, conducting business, analyzing business results, features for logging important information, system features, features for working with interacting systems,...

21p youzhangjing_1909 28-04-2022 29 1   Download

Lecture Software Engineering: Lesson 3 - Fakhar Lodhi. The main topics covered in this chapter include: requirement engineering, definitions, importance of requirements, functional and non-functional requirements, requirement statement versus requirement specification, some risks from inadequate requirement process,...

28p youzhangjing_1909 28-04-2022 7 1   Download

Lecture Software Engineering: Lesson 4 - Fakhar Lodhi. The main topics covered in this chapter include: levels of requirements, business requirements, user requirements, functional requirements, non-functional requirements, some risks from inadequate requirement process, ambiguous requirements,...

24p youzhangjing_1909 28-04-2022 7 1   Download

Lecture Software Engineering: Lesson 5 - Fakhar Lodhi. The main topics covered in this chapter include: business requirements developers view, business requirements retailer’s view, conflicting objectives, vision statement an example, context diagram, use case model,...

29p youzhangjing_1909 28-04-2022 10 1   Download

Lecture Software engineering II: Lesson 1 - Fakhar Lodhi. The main topics covered in this chapter include: software engineering, law of diminishing returns, potentially conflicting requirements, software development loop, well-engineered software, breakdown of effort cost - software cost estimation by Capers Jones,...

28p youzhangjing_1909 28-04-2022 11 1   Download

Lecture Software engineering II: Lesson 26 - Fakhar Lodhi. The main topics covered in this chapter include: error tracking, using error tracking to assess progress, software quality, quality assurance, professionally developed software, software requirements are the foundation from which quality is measured,...

10p youzhangjing_1909 28-04-2022 10 1   Download

Lecture Software engineering II: Lesson 36 - Fakhar Lodhi. The main topics covered in this chapter include: key process areas (KPAs) as defined by software engineering institute (SEI), software engineering and management practices, requirement management and CMM, the root causes of project failure,...

20p youzhangjing_1909 28-04-2022 12 1   Download