Lessons learned from full scale observations and the practical application of advanced testing and modelling

Author(s):  
Suwithida Charungkaittikul ◽  
John A. Henschke

Today, the world is changing, re-establishing the role of education to have a developed society. This article aims to explore the practical application of Andragogy as a key element for creating a sustainable lifelong learning society, to propose strategies for developing a lifelong learning society using andragogical concepts, to enhance ‘andragogy' as a scientific academic discipline and to expand on the horizon of andragogical assumptions and processes put forth by Malcolm Knowles. The literature on andragogy demonstrates the need to consider the future of andragogy, which may strengthen the theory and allow for the assumptions and processes to further guide this aspect of adult education. While the journey towards a lifelong learning society will continue to evolve, the lessons learned may help to identify key facilitating factors as well as pitfalls to be avoided in formulating more comprehensive lifelong learning society development strategies in the future.


Author(s):  
R. Sarunac

Following National Transportation Safety Board (NTSB) recommendations and directions from early 1996, the Washington Metropolitan Transit Authority (WMATA) has worked to provide the latest crashworthiness and passenger safety requirements for its new car procurements. Taking advantage of recent developments in the field of vehicle crashworthiness, new technical requirements were developed and implemented for the 5000 and 6000 series vehicles. To date, WMATA is the first transit authority in the U.S. to require a dynamic sled test per the APTA SS-C&S-016-SS Standard, and the second (after the New York City Transit Authority) to run full-scale vehicle crash tests. Previously, the strength-based philosophy was used to ensure some level of rail vehicle crashworthiness. However, WMATA is now implementing a strength-based crashworthiness approach, augmented with “energy-based” requirements. Should a collision occur, the Authority’s ultimate goal is to reduce passenger deceleration rates during a collision, while at the same time controlling the absorption of collision energy in a manner that minimizes loss of space in the occupied volume of the vehicle. The passenger survivability measure using maximum acceleration has been supplemented by introducing the duration of the acceleration as an additional criteria following the Head Injury Criteria (HIC) and Abbreviated Injury Scale (AIS) approaches developed for the automotive industry. WMATA’s crashworthiness requirements now include sustaining a hard coupling without any damage to the body or coupler (except emergency release), and head-on collision of two eight-car trains with specified passenger loads (one train stationary with brakes applied) with no permanent deformation of the passenger compartment and with the acceleration, level and duration not to exceed the specified HIC. The implementation of an “energy-based” crashworthiness approach was divided into several logical steps/stages. During the design process, several modifications were introduced to optimize crashworthiness and to ensure structural compatibility with the existing fleet. The design was verified by implementing full-scale testing, and potential passenger injuries were assessed by using instrumented anthropomorphic test devices (ATDs), and measuring the forces and accelerations acting on these ATDs during the test.


2008 ◽  
Vol 57 (7) ◽  
pp. 1095-1101 ◽  
Author(s):  
David Cecil

A practical problem with using redox potential to control nitrogen removal in activated sludge is detecting the bend in the redox curve that occurs when the nitrate concentration is reduced to low levels. In this paper, a method for detecting the bend is proposed. The method is based on fitting a third-order polynomial to the whole redox curve during a denitrification period. The bend is then the point of inflection on this curve. This is the potential when the second derivative of the polynomial is zero. The practical application of the method is demonstrated in full scale. The method successfully detected the bend in about 90% of aeration denitrification cycles. However, this method gave no significant improvement in nitrogen removal and less than 4% reduction in electricity consumption when compared with control based on a fixed redox set point. Therefore, it is recommended that a fixed set point be used, as this is a much simpler and more robust method.


2013 ◽  
Vol 8 (2) ◽  
pp. 275-285 ◽  
Author(s):  
G. D. Wetterau ◽  
R. B. Chalmers ◽  
P. Liu ◽  
W. Pearce

While indirect potable reuse (IPR) has been used in southern California (USA) since the 1970s, the commissioning of the 265-megalitre-per-day Groundwater Replenishment System (GWRS) in Orange County (California) showed the region's commitment to utilizing reuse as a major source of potable water augmentation. The treatment process used at GWRS has become the benchmark on which California regulations were based and which other IPR facilities are measured against. As the cities of Los Angeles and San Diego move forward with their own IPR programs, they have commissioned pilot-scale and demonstration-scale projects to build on the lessons learned at the GWRS and to aid in developing future projects that are efficient, effective, and publicly supported. This paper will discuss the technical approaches being evaluated in these projects and the lessons learned in the operation of the existing full-scale facilities.


2009 ◽  
Vol 33 (4) ◽  
pp. 65-74 ◽  
Author(s):  
S. Atamturktur ◽  
A. Pavic ◽  
P. Reynolds ◽  
T. Boothby

Author(s):  
Sylvia Heuchemer ◽  
Elena Martins ◽  
Birgit Szczyrba

Innovative teaching concepts such as problem-based learning (PBL) can make a difference in an academic setting, particularly when dealing with diversity, and support the successful completion of students’ studies. Introducing new approaches to teaching requires the professionalization of the teaching staff and the development of new tools. As a view from the field, this contribution describes the steps taken at TH Köln - University of Applied Sciences to introduce PBL and discusses empirical and practical aspects of a university-wide implementation. It offers lessons learned from the practical application of PBL theories in a real-life setting.


Author(s):  
Phil Minoudis ◽  
Jake Shaw

The aims of this chapter are twofold. First, it outlines methods by which high-risk offenders with personality disorder can be identified in large samples of offenders. It presents a summary of the available evidence that relates to this task, while also drawing on the authors’ experience of implementing systems of case identification while working in the probation service in the UK. It is argued that adopting proactive systems of case identification not only is achievable but also holds a number of potential benefits. Second, the chapter considers approaches to formulation in the Offender Personality Disorder (OPD) community pathways services. Following a review of the literature and available models, the authors discuss how the London Pathways Partnership selected its current approach and provide a description of its practical application and the lessons learned from our experiences. The chapter ends with a discussion of future directions for both case identification and formulation.


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