An Experimental Application of Four Types of Chitosan Bead for Removal of Cationic and Anionic Pollutants

The paper presents an experimental application of the Proper Orthogonal Decomposition (POD) to damage detection in steel beams. A damaged beam has been excited with a sinusoidal force, the acceleration response at points regularly spaced along the structure has been recorded and the relevant Proper Orthogonal Modes calculated. In this way it is possible to locate damage by comparing the measured dominant Proper Orthogonal Mode with a smoothed version of it which does not exhibit apparent peaks in correspondence with the damage. One of the principal advantages of the proposed damage detection technique is that it does not require vibration measurements to be performed on the undamaged structure. Moreover the ‘optimality’ of the proper orthogonal modes only requires the use of a few (one-two) of them which can be computed in real time during lab experiments or while the structure is functioning in the field.

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A Brazilian original pedagogical approach to the teaching of neurology

Arquivos de Neuro-Psiquiatria ◽

10.1590/0004-282x20140136 ◽

2014 ◽

Vol 72 (10) ◽

pp. 747-752 ◽

Cited By ~ 2

Author(s):

Lucas Vilas Bôas Magalhães ◽

Paula Teixeira Fernandes ◽

Daniel de Souza Ferreira Magalhães ◽

Ricardo Rocha Bastos ◽

Li Li Min

Keyword(s):

Medical Education ◽

Undergraduate Medical Education ◽

Comparative Test ◽

Case Discussion ◽

Pedagogical Approach ◽

Traditional Lecture ◽

Experimental Application ◽

Teachers And Students ◽

Long Time ◽

Approach Method

The two-arm Clinical Decisions/Diagnostic Workshop (CD/DW) approach to undergraduate medical education has been successfully used in Brazil. Objective Present the CD/DW approach to the teaching of stroke, with the results of its pre-experimental application and of a comparative study with the traditional lecture-case discussion approach. Method Application of two questionnaires (opinion and Knowledge-Attitudes-Perceptions-KAP) to investigate the non-inferiority of the CD/DW approach. Results The method was well accepted by teachers and students alike, the main drawback being the necessarily long time for its completion by the students, a feature that may better cater for different educational needs. The comparative test showed the CD/DW approach to lead to slightly higher cognitive acquisition as opposed to the traditional method, clearly showing its non-inferiority status. Conclusion The CD/DW approach seems to be another option for teaching neurology in undergraduate medical education, with the bonus of respecting each learner`s time.

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Strained-Si Mos Field-Effect Transistors: Building Devices on Relaxed -SI1−xGEx Buffer Layers

MRS Proceedings ◽

10.1557/proc-379-309 ◽

1995 ◽

Vol 379 ◽

Cited By ~ 1

Author(s):

Jeffrey J. Welser

Keyword(s):

Field Effect ◽

Field Effect Transistors ◽

Buffer Layers ◽

Mos Transistors ◽

Strained Si ◽

Self Heating ◽

Experimental Application ◽

Heating Effects ◽

Enhanced Mobility ◽

Output Characteristics

ABSTRACTThe experimental application of strained-Si / relaxed-Si1−xGex heterostructures to n-MOSFETs is discussed, focusing on the enhanced mobility provided by the strain. This paper provides an overview of the theoretically-predicted electronic properties of these heterostructures, as well as their growth. Several practical issues which arise in MOS applications are covered, including the effect of the relaxed-Si1−xGex, buffer layers on diode performance, and the observation of self-heating effects in the output characteristics of the MOS transistors.

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