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Technical Paper

(Ce, Zr)O2 Solid Solutions for Three-Way Catalysts

1997-02-24
970463
It has been recently shown that (Ce, Zr)O2 mixed oxides provide improved catalytic performances compared to pure CeO2. Cerium oxide is the active Oxygen Storage Capacity (OSC) component in three way catalysts. However, higher performances, including OSC enhancement, can be achieved with thermally stable solid solutions of Ce and Zr oxides. In the present paper, we describe the structure and the advantages of Ce rich (Ce, Zr)O2 solid solutions and the improved catalytic properties of these materials when used in association with platinum. Various analytical techniques were used including thermo-reduction methods, OSC measurements, surface area measurements, XRD, HRTEM, XPS, and XANES/EXAFS.
Standard

(ISO/IEC 12207) Standard for Information Technology - Software Life Cycle Processes

2015-07-01
CURRENT
IEEEEIA12207_0
ISO/IEC 12207 provides a common framework for developing and managing software. IEEE/EIA 12207.0 consists of the clarifications, additions, and changes accepted by the Institute of Electrical and Electronics Engineers (IEEE) and the Electronic Industries Alliance (EIA) as formulated by a joint project of the two organizations. IEEE/EIA 12207.0 contains concepts and guidelines to foster better understanding and application of the standard. Thus this standard provides industry a basis for software practices that would be usable for both national and international business.
Event

(More) Electric Aircraft

2019-09-24
The next generation of aircraft will be Electric Aircraft and in various configurations that were considered improbable, if not impossible. The new aircraft will result in higher performance, added capability, and in a more reliable platform for both personal and public transportation. This session invites authors to present topics on aircraft, systems, components and technologies.
Technical Paper

(Nano) Particles from 2-S Scooters: SOF / INSOF; Improvements of Aftertreatment; Toxicity

2007-04-16
2007-01-1089
Limited and non-regulated emissions of scooters were analysed during several annual research programs of the Swiss Federal Office of Environment (BAFU) *). Small scooters, which are very much used in the congested centers of several cities, are a remarkable source of air pollution. Therefore every effort to reduce the emissions is an important contribution to improve the air quality in urban centers. In the present work detailed investigations of particle emissions of different 2-stroke scooters with direct injection and with carburettor were performed. The nanoparticulate emissions were measured by means of SMPS, (CPC) and NanoMet. Also the particle mass emission (PM) was measured with the same method as for Diesel engines. Extensive analyses of PM-residuum for SOF/INSOF, PAH and toxicity equivalence (TEQ), were carried out in an international project network. Particle mass emission (PM) of 2-S Scooters consists mostly of SOF.
Technical Paper

(Paint) Film Finishing in Practice

1992-02-01
920732
(Paint) film as an alternative to spray applied paint has received growing attention in recent years. The potential for economic and environmental advantage and quality enhancement with this technology has been reported in several technical papers (Ref. 1, 3 and 4). The actual practice of film finishing, however, has received only limited notice. Film finishes have been applied to aluminum, stainless steel, PVC, and ABS. Starting in 1982, part applications include: wheel covers, door edge guards, window surrounds, roof drip moldings, lower windshield moldings, rocker panels, body side moldings, B pillars, and A pillars. Industry awareness and acceptance of film finishing as a viable alternative to spray applied paint is increasing. The two technologies are similar in many ways, yet distinctly different in other ways. They share a common goal: To yield a durable finish, economically and with superior visual impact. This paper reviews the unique aspects of film finishing.
Event

(Part 1 of 2) Additive Manufacturing

2019-03-27
Additive Manufacturing is a rapidly growing industry with the potential to improve yield, quality and throughput, while reducing both operating and inventory costs, which makes it a very disruptive innovation. Gov't, industry, and academia need to collaborate to assure that this technology achieves its fullest potential for all stakeholders. This session will provide the participants an understanding of the current and future state of this technology as it is related to aerospace and defense. Follow the links below for more Additive Manufacturing content Additive Manufacturing Part 2 Industrialization Panel Discussion
Event

(Part 1 of 2) Aerospace Systems and Operations - Aerospace Systems Modeling and Simulation

2018-11-07
The future of the Aerospace Operations requires the development of new technologies and concepts, and the capability to integrate complex systems to satisfy the needs of future aerospace operations. Presentations are solicited in Aerospace Modeling and Simulation. These sessions will provide a forum for international discussion and information on leading-edge research and developments associated with new insights of future concept elements and new technologies in aerospace operations.
Event

(Part 1 of 2) Auto Fastening / Assembly & Tooling - Automated Drilling and Fastening Systems

2019-03-26
This technical session explores the advancements of portable drilling and fastening technologies and systems. Presentations detail the various technologies as well as the methodologies used and challenges faced during their implementation in aerospace manufacturing. Examples include the use of portable crawler type units as well as flex track guide systems in aerospace manufacturing along with their productivity gains and improvement of product quality.
Event

(Part 1 of 2) Aviation Cyber Security

2018-11-07
Cyber Security is critical for quality, reliability, safety, and security of the entire aviation ecosystems. This includes CyberPhysical, Industrial Control Systems, IoT, Platform Information Technology (PIT) and embedded systems. This symposia address issues of Cyber Security for Aircraft, Airline, Airport and Air Traffic Control from experts in government, industry, and academia as well as White Hat professionals. Emphasis will be on vulnerabilities and challenges in security of the aviation ecosystem. For Additional Cyber Content in this session room
Event

(Part 1 of 2) Avionics SW/HW Certification: DO-178 and DO-254

2018-11-06
The avionics industry has been working to the DO-254 & DO-178 standard for FPGAs, ASICs, PLDs and Hardware designs for systems, avionics LRUs and IMA hardware applications. There are many areas of this standard which are in flux due to the complexities of the technology as well as the changes in the certification policies in commercial and military programs. This session will discuss several areas of current dialog and concern within the certification community as it relates to this standard.
Event

(Part 1 of 2) Digital Design and Manufacturing

2018-11-07
Industry 4.0 and the many components of this initiative, such as IIoT, Digital Thread/Twin, Additive Manufacturing and AR/VR, will be discussed in detail to provide greater understanding of the technologies and their uses. Government, industry, and academia need to collaborate to assure that these technologies achieve their fullest potential for all stakeholders. This session will provide the participants an understanding of the current and future state of this technology as it is related to aerospace and defense.
Event

(Part 1 of 2) Digital and Data

2019-03-26
This session addresses aspects of product and service development related to data sensing, data processing, data configuration, data architecture, connectivity, data usage, data management, data integration, data valuation when viewed with common data attributes such as classification, confidentiality, integrity, authenticity, availability, intellectual property, regional laws, data safety impacts and data format. Join us in Meeting Room 4 on March 27, 2019 at 11:00 a.m. for the Digital Twin / Digital Thread Panel Discussion Follow this link to learn more about the panelists
Event

(Part 1 of 2) Test Facilities: Ice Adhesion Tests

2019-06-18
This session includes reports on an assessment of multi-element sensor for calibration of wind tunnels, the development of mixed phase and glaciated environments, and the calibration for mixed phase and glaciated icing conditions.
Event

(Part 1 of 2) UAV Icing

2019-06-20
This session includes presentations on regulatory activity for certification and for qualification for flight in icing conditions, especially those associated with ice crystal icing and supercooled large drops.
Event

(Part 1 of 2) Urban Air Mobility - Flying Cars/Roadable Aircraft

2019-03-26
Dual mode personal transportation vehicles and components, focusing on driving and flying capabilities. Required technologies, alternative system configurations, designs under development, prototype hardware, and in-flight performance of remote controlled models and full size prototypes will be presented.
Event

(Part 1 of 2) Workshop: Introduction to Composites Fabrication and Assembly in Aerospace, Space, and Transportation

2019-03-26
The challenges associated with using composites as a replacement for aluminum reside primarily in the complex manufacturing processes and technologies for fabricating composite parts. The high cost of composites material and its manufacturing complexity have been inhibitors to the wide transfer of this technology to the non-aerospace market. The search for solutions to high manufacturing costs and efficient manufacturing processes have resulted in intense research by government, aerospace industry companies, and space agencies worldwide. This workshop will introduce participants to composites technologies that have applications beyond aerospace, including such markets as trucks, automobiles, and wind turbines. The instructor will define, illustrate, and describe the innovative manufacturing processes and technologies that have been used to solve the “composite challenge” for aerospace and space vehicles.
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