scholarly journals Concise Definition of Aviation PNT User Requirements Based on OFD

2020 ◽  
Vol 198 ◽  
pp. 04012
Author(s):  
Yan Wang ◽  
Wei Zhao ◽  
Su Yu ◽  
YangHe Shen
Keyword(s):  
Quality Function Deployment ◽  
Research Work ◽  
Development Trend ◽  
User Requirements ◽  
House Of Quality ◽  
Requirements Definition ◽  
Whole Process ◽  
Quality Framework ◽  
Definition Of ◽  
Concise Definition

Definition of aviation is the core of PNT system requirements analysis and research, The quality of PNT user requirements definition will directly affect the scientificity and effectiveness of other research work of the system, QFD(Quality Function Deployment) is a systematic technical method and management method. In the process of product development, all activities are driven by users’ needs. QFD has been widely used in manufacturing, industrial and commercial military fields, and achieved great results. House of quality(HOQ) is the basic tool for establishing QFD system and essence of OFD method. The typical house of quality framework and analytical solution method can be used not only in the development process of new products, but also in the whole process of analysis in other fields. In this paper, aiming at the concise definition of PNT user requirements, QFD technology is used to build QFD model of PNT user requirements and PNT system technology based on the analysis of existing PNT information requirements and future aviation navigation development trend. In order to facilitate the analysis and simplify the approach of aviation navigation as the user requirements, and GNSS, SBAS, DEM, VOR, NDB, ILS and GBAS as the main system technologies. Finally, the technical quality house model of PNT system of aviation navigation task is given, so as to complete the concise definition of PNT user requirements of aviation users.

scholarly journals A systems engineering framework for the design of bioprocess operator training simulators

2019 ◽  
Vol 78 ◽  
pp. 03001
Author(s):  
Joseph Isimite ◽  
Frank Baganz ◽  
Volker Hass
Keyword(s):  
Systems Engineering ◽  
Quality Function Deployment ◽  
Oil And Gas ◽  
Training Needs ◽  
Design Activity ◽  
User Requirements ◽  
Nuclear Facilities ◽  
Operator Training ◽  
Final Design ◽  
Definition Of

Operator training simulators (OTS) are widely used in several industries including chemical processing, oil and gas, medicine, aircraft and nuclear facilities. However, developing a biorefinery OTS is a complex engineering design activity that requires a structured technique. This paper presents a structured methodology that applies design frameworks from other disciplines and a user-centred approach for biorefinery OTS design. These include the definition of end user requirements (operator training needs), and the analysis of these requirements using Quality Function Deployment (QFD). Furthermore, an algorithm for bioprocess optimisation and automatic adjustment of operating parameters is developed for integration into the OTS. This algorithm is based on the Nelder-Mead simplex method for multi-dimensional function minimisation. Identified user requirements were categorized into primary, secondary and tertiary training needs, with increasing levels of detail from primary to tertiary needs. The relationships between identified operator training needs and OTS technical and functional specifications were investigated, and a priority rating assigned to the most important OTS specifications. Identified OTS specifications were evaluated for robustness to ensure that important features were not omitted from the final design.

scholarly journals Overview of clustering analysis algorithms in unknown protocol recognition

2020 ◽  
Vol 309 ◽  
pp. 03008 ◽  
Author(s):  
Zhiguo Liu ◽  
Changqing Ren ◽  
Wenzhu Cai
Keyword(s):  
Clustering Analysis ◽  
Clustering Algorithm ◽  
Clustering Algorithms ◽  
Research Work ◽  
Development Trend ◽  
Future Research ◽  
Stream Data ◽  
Data Set ◽  
Whole Process ◽  
Bit Stream

In the process of identifying unknown protocol of bit stream, the clustering of data sets of bit stream in the protocol is the basis of further identifying unknown protocol. Therefore, on the one hand, this paper analyses the classical clustering algorithms used in unknown protocol recognition from three perspectives: the whole process of clustering analysis, similarity measurement and clustering result evaluation. On the other hand, the development trend of clustering algorithm in unknown protocol recognition is summarized, and other problems in unknown protocol recognition can be solved by clustering algorithm according to the characteristics of bit stream data set, which can provide reference for future research work. Finally, the challenges faced by the Research Institute and the prospects for future work are given.

Structured Brainstorming: A Method for Collecting User Requirements

1993 ◽  
Vol 37 (5) ◽  
pp. 427-431 ◽  
Author(s):  
Jani G. Byrne ◽  
Todd Barlow
Keyword(s):  
Quality Function Deployment ◽  
User Requirements ◽  
House Of Quality ◽  
Customer Requirements ◽  
Quality Function ◽  
Product Experience ◽  
Design Specifications ◽  
The Core

This paper describes the Structured Brainstorming process employed by IBM's Networking Systems Customer Requirements department for collecting, analyzing, and deploying product requirements. Structured Brainstorming relies on the user's job and product experience to generate ideas for product requirements. Structured Brainstorming elicits these requirements from the users through a series of group and individual activities. After identifying the core ideas, users assign them priorities and assign satisfaction scores for current products. This information may be used to build a House of Quality (HOQ) within Quality Function Deployment (QFD) to organize and translate user requirements into design specifications. The authors offer guidelines and suggestions based on their experience with the technique.

Addressing the Construction of Z and Object-Z with Use Case Maps (UCMs)

2014 ◽  
Vol 24 (02) ◽  
pp. 285-327
Author(s):  
Cyrille Dongmo ◽  
John Andrew van der Poll
Keyword(s):  
Formal Specification ◽  
Intermediate Step ◽  
User Requirements ◽  
Use Case ◽  
System Behavior ◽  
Natural Languages ◽  
Requirements Definition ◽  
Use Case Maps ◽  
Definition Of ◽  
Visual Notation

A Use Case Map (UCM) is a scenario-based visual notation facilitating the requirements definition of complex systems. A UCM may be generated either from a set of informal requirements, or from a set of use cases normally expressed in natural language. Natural languages are, however, inherently ambiguous and as a semi-formal notation, UCMs have the potential to bring more clarity into the functional description of a system. It may furthermore eliminate possible errors in the user requirements. The semi-formal notation of UCMs aims to show how things work generally, but is not suitable to reason formally about system behavior. It is plausible, therefore, that the use of a UCM as an intermediate step may facilitate the construction of a formal specification. To this end this paper proposes a mechanism whereby a UCM may be translated into Object-Z.

Bottlenecks in the Implementation of On-Site Wastewater Treatment Plants on a Large Scale in The Netherlands

1990 ◽  
Vol 22 (3-4) ◽  
pp. 291-298
Author(s):  
Frits A. Fastenau ◽  
Jaap H. J. M. van der Graaf ◽  
Gerard Martijnse
Keyword(s):  
Wastewater Treatment ◽  
The Netherlands ◽  
Large Scale ◽  
Wastewater Treatment Plants ◽  
Housing Stock ◽  
Research Work ◽  
Field Research ◽  
Domestic Wastewater ◽  
Research Programme ◽  
Definition Of

More than 95 % of the total housing stock in the Netherlands is connected to central sewerage systems and in most cases the wastewater is treated biologically. As connection to central sewerage systems has reached its economic limits, interest in on-site treatment of the domestic wastewater of the remaining premises is increasing. A large scale research programme into on-site wastewater treatment up to population equivalents of 200 persons has therefore been initiated by the Dutch Ministry of Housing, Physical Planning and Environment. Intensive field-research work did establish that the technological features of most on-site biological treatment systems were satisfactory. A large scale implementation of these systems is however obstructed in different extents by problems of an organisational, financial and/or juridical nature and management difficulties. At present research is carried out to identify these bottlenecks and to analyse possible solutions. Some preliminary results are given which involve the following ‘bottlenecks':-legislation: absence of co-ordination and absence of a definition of ‘surface water';-absence of subsidies;-ownership: divisions in task-setting of Municipalities and Waterboards; divisions involved with cost-sharing;-inspection; operational control and maintenance; organisation of management;-discharge permits;-pollution levy;-sludge disposal. Final decisions and practical elaboration of policies towards on-site treatment will have to be formulated in a broad discussion with all the authorities and interest groups involved.

scholarly journals Unveiling the Link between the Third Law of Comminution and the Grinding Kinetics Behaviour of Several Ores

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1079
Author(s):  
Victor Ciribeni ◽  
Juan M. Menéndez-Aguado ◽  
Regina Bertero ◽  
Andrea Tello ◽  
Enzo Avellá ◽  
...  
Keyword(s):  
Standard Procedure ◽  
Research Work ◽  
Excellent Correlation ◽  
The Third ◽  
Work Index ◽  
Bond Work Index ◽  
Laboratory Procedures ◽  
Grinding Kinetics ◽  
Definition Of ◽  
Index Estimation

As a continuation of a previous research work carried out to estimate the Bond work index (wi) by using a simulator based on the cumulative kinetic model (CKM), a deeper analysis was carried out to determine the link between the kinetic and energy parameters in the case of metalliferous and non-metallic ore samples. The results evidenced a relationship between the CKM kinetic parameter k and the grindability index gbp; and also with the wi, obtained following the standard procedure. An excellent correlation was obtained in both cases, posing the definition of alternative work index estimation tests with the advantages of more straightforward and quicker laboratory procedures.

scholarly journals Flying Free: A Research Overview of Deep Learning in Drone Navigation Autonomy

Drones ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 52
Author(s):  
Thomas Lee ◽  
Susan Mckeever ◽  
Jane Courtney
Keyword(s):  
Deep Learning ◽  
Research Work ◽  
Learning Approaches ◽  
Clear Definition ◽  
Top Down ◽  
Research Activity ◽  
Comprehensive Overview ◽  
The Past ◽  
Computer Vision Applications ◽  
Definition Of

With the rise of Deep Learning approaches in computer vision applications, significant strides have been made towards vehicular autonomy. Research activity in autonomous drone navigation has increased rapidly in the past five years, and drones are moving fast towards the ultimate goal of near-complete autonomy. However, while much work in the area focuses on specific tasks in drone navigation, the contribution to the overall goal of autonomy is often not assessed, and a comprehensive overview is needed. In this work, a taxonomy of drone navigation autonomy is established by mapping the definitions of vehicular autonomy levels, as defined by the Society of Automotive Engineers, to specific drone tasks in order to create a clear definition of autonomy when applied to drones. A top–down examination of research work in the area is conducted, focusing on drone navigation tasks, in order to understand the extent of research activity in each area. Autonomy levels are cross-checked against the drone navigation tasks addressed in each work to provide a framework for understanding the trajectory of current research. This work serves as a guide to research in drone autonomy with a particular focus on Deep Learning-based solutions, indicating key works and areas of opportunity for development of this area in the future.

Die markinischen Summarien—ein literarischer und theologischer Schlüssel zu Mark 1–6

2010 ◽  
Vol 56 (4) ◽  
pp. 452-474 ◽  
Author(s):  
Eve-Marie Becker
Keyword(s):  
Literary Form ◽  
Theological Interpretation ◽  
Textual Structure ◽  
Definition Of ◽  
Concise Definition

On the basis of a concise definition of the literary form of a summary/Summarium/sommaire that has to be distinguished from epitome (e.g. Mk 1.14f.; 8.31) or ‘Geschichtsabriss’ (cf. Acts), this contribution analyzes the literary and theological function of all three summaries that can be found in Mark 1–6 (1.32–34; 3.7–12; 6.54–56). By these summaries the author of the Markan Gospel not only provides a macro-textual structure for his narrative, but also gives a theological interpretation and a narrative emplotment of Jesus' Galilean ministry, and thus carries forward essential parts of the Gospel story.

PERANCANGAN RAK SEPATU UNTUK LABORATORIUM DESAIN PRODUK DAN INOVASI INSTITUT TEKNOLOGI DEL DENGAN METODE VALUE ENGINEERING DAN QUALITY FUNCTION DEPLOYMENT (QFD)

2021 ◽  
Vol 26 (2) ◽  
pp. 122-138
Author(s):  
Donda Natalia R. Simanjuntak ◽  
Yosef Manik ◽  
Benedikta Anna Haulian Siboro
Keyword(s):  
Quality Function Deployment ◽  
Value Engineering ◽  
House Of Quality ◽  
Quality Function

Laboratorium desain produk dan inovasi (Lab Desprin) merupakan salah satu fasilitas di Institut Teknologi Del yang digunakan untuk mengembangkan kemampuan mahasiswa dalam hal merancang dan menghasilkan produk-produk inovatif. Laboratorium Desprin memiliki aturan, dimana pengunjung harus membuka sepatu dan meletakkannya di luar ruangan. Melalui penelitian ini dirancang fasilitas rak sepatu sebagai tempat untuk meletakkan sepatu bagi dosen, laboran, mahasiswa, dan tamu yang berkunjung ke Lab Desprin. Metode yang digunakan dalam perancangan produk ini adalah Value Engineering dan Quality Function Deployment (QFD). Metode QFD digunakan untuk memperoleh informasi kebutuhan calon pengguna terhadap produk, sedangkan metode Value Engineering digunakan untuk merancang produk dengan meminimalkan biaya pembuatan. Desain dirancang sesuai dengan suara user yang diterjemahkan ke dalam House of Quality untuk mendapatkan spesifikasi yang tepat. Data antropometri Indonesia terkhusus area kaki digunakan sebagai input dalam mendesain dimensi. Perancangan ini menghasilkan rak sepatu Lab Desprin dengan kapasitas 68 pasang sepatu. Melalui perhitungan, estimasi biaya untuk pembuatan produk rak sepatu sebesar Rp.5.081.700, sedangkan untuk rak gantungan adalah Rp. 793.000. Dengan demikian, nilai yang dihasilkan desain pengembangan produk rak sepatu dibandingkan dengan desain awal adalah 1,54 dan dikembangkan dari desain pengembangan ke desain akhir sebesar 1,27 yang mana nilai ini lebih baik dibandingkan produk-produk pesaing lainnya.

scholarly journals Review and Development Trend of Digital Hydraulic Technology

2020 ◽  
Vol 10 (2) ◽  
pp. 579
Author(s):  
Qiwei Zhang ◽  
Xiangdong Kong ◽  
Bin Yu ◽  
Kaixian Ba ◽  
Zhengguo Jin ◽  
...  
Keyword(s):  
Energy Saving ◽  
Developmental Process ◽  
Development Trend ◽  
Research Status ◽  
Uniform Definition ◽  
Definition Of ◽  
The Development Trend ◽  
Exact Definition

Since the emergence of digital hydraulic technology, it has achieved good results in intelligence, integration, energy saving, etc. After decades of development, and it has also attracted wide attention in the industry. However, for many years, the definition of digital hydraulic technology has differed between researchers, and there is no uniform definition. Such a situation affects the development of it to a certain extent. Therefore, this paper gives the exact definition of digital hydraulic technology based on a large number of researches on it. At the same time, the paper analyzes the research status and developmental process of the such a technology, and we forecast the development trend of it.

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