THE DESIGN AND ANALYSIS OF EXPERIMENTS. By Oscar Kempthorne. New York, John Wiley and Sons, Inc., 1952. 631 pp. $8.50. This book by a teacher of statistics (as well as a consultant for \"experimenters\") is a comprehensive study of the philosophical background for the statistical design of experiment. It is necessary to have some facility with algebraic notation and manipulation to be able to use the volume intelligently. The problems are presented from the theoretical point of view, without such practical examples as would be helpful for those not acquainted with mathematics. The mathematical justification for the techniques is given. As a somewhat advanced treatment of the design and analysis of experiments, this volume will be interesting and helpful for many who approach statistics theoretically as well as practically. With emphasis on the \"why,\" and with description given broadly, the author relates the subject matter to the general theory of statistics and to the general problem of experimental inference. MARGARET J. ROBERTSON

The Design and Analysis of Experiments

A review of air filtration technologies for sustainable and healthy building ventilation

................................................................................................................................... ii Dedication................................................................................................................................ iv Acknowledgments.................................................................................................................... v Vita........................................................................................................................................... vii List of Tables............................................................................................................................. xii List of Figures............................................................................................................................ xiv Chapter 1 ‐ Introduction........................................................................................................... 1 1.1 ‐ Microbial fuel cells.................................................................................................. 2 1.2 ‐ Microbial fuel cell applications............................................................................... 4 1.3 ‐ Research problems associated with MFC technology............................................. 5 1.4 ‐ Introduction to this research study......................................................................... 6 Chapter 2 ‐ Effects of Nano‐structure Enhanced Cathodes on Electricity Production of Two‐ Chamber Microbial Fuel Cells 2.1 ‐ Introduction............................................................................................................ 8 2.2 ‐ Materials and Methods........................................................................................... 16 2.2.1 ‐ Electrode construction Graphite bar anodes.......................................................................................... 18 Graphite bar cathodes....................................................................................... 20

In Partial Fulfillment of the Requirements for the Degree of

Two-stage electrostatic precipitators for the reduction of PM2.5 particle emission

Particulate matter (PM) pollution from automobile exhaust has become one of the main pollution sources in urban environments. Although the diesel particulate filter has been used in heavy diesel vehicles, there is no particulate filter for most gasoline cars or light-duty vehicles because of high cost. Here, we introduce a self-powered triboelectric filter for removing PMs from automobile exhaust fumes using the triboelectrification effect. The finite element simulation reveals that the collision or friction between PTFE pellets and electrodes can generate large triboelectric charges and form a space electric field as high as 12 MV/m, accompanying an open-circuit voltage of ∼6 kV between the two electrodes, which is comparable to the measured value of 3 kV. By controlling the vibration frequency and fill ratio of pellets, more than 94% PMs in aerosol can be removed using the high electric field in the triboelectric filter. In real automobile exhaust fumes, the triboelectic filter has a mass collection efficiency of ∼95.5% for PM2.5 using self-vibration of the tailpipe.

Removal of Particulate Matter Emissions from a Vehicle Using a Self-Powered Triboelectric Filter

Novel electrodes of an electrostatic precipitator for air filtration

Numerical study of electrostatic precipitators with novel particle-trapping mechanism

Reduction of aerosol particulates through the use of an electrostatic precipitator with guidance-plate-covered collecting electrodes

Energy consumption of a filtration system depends largely on the pressure drop across the air ducts. The magnitude of this pressure drop is largely dependent on the presence of air filters designed to remove particles from the air stream. However, evaluating the performance of air filters by looking only at their pressure drop or collection efficiency is misleading because these two factors are not linearly dependent. A more rigorous approach uses key energy performance (KEP) to assess air filter performance, because KEP involves both collection efficiency and pressure drop. This paper provides methodology for the evaluation of performance of different types of filters, comparing the KEP of one fiber-based filter and three electrostatic precipitators (ESPs). One of the ESPs is commercially available, while the other two have novel particle-trapping mechanisms developed by our research group that substantially increase collection efficiency. The results show that, although all electrostatic precipitators have KEPs of at least nine times higher than fiber-based filters, newly developed electrostatic precipitators have KEPs of nearly twice as high as their commercially available counterparts. This paper also examines how three different operating conditions affect the KEPs of ESPs, and presents an example of energy savings in a filtration system when fiber-based filters are replaced with electrostatic precipitators.

The key energy performance of novel electrostatic precipitators

A semiconductor package system (405,505,605,705) which includes a base circuit board (410,510,610), a semiconductor package mounted on the base circuit board, and a heat dissipation component (200,300,400,500,600) having a first contacting area (208,308,408,508,608) for making a first connection with an upper portion of the semiconductor package and a second contacting area (209,309,409,509,609) for making a second connection with the base circuit board is disclosed. A method of improving heat dissipation of a semiconductor package is also disclosed.

Tsrong-Yi Wen

Papers

Novel electrodes of an electrostatic precipitator for air filtration

Numerical study of electrostatic precipitators with novel particle-trapping mechanism

Reduction of aerosol particulates through the use of an electrostatic precipitator with guidance-plate-covered collecting electrodes

The key energy performance of novel electrostatic precipitators

Semiconductor package system and method of improving heat dissipation of a semiconductor package