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Author

Greg Young

Other affiliations: University of Hawaii at Manoa
Bio: Greg Young is an academic researcher from San Jose State University. The author has contributed to research in topics: Process (engineering) & Production engineering. The author has an hindex of 6, co-authored 8 publications receiving 441 citations. Previous affiliations of Greg Young include University of Hawaii at Manoa.

Papers
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Journal ArticleDOI
TL;DR: This review discusses existing extraction methodologies as they have and can be applied to microalgae and their potential as a unit operation that exists within the framework of an industrial‐scale microalgal cultivation process that extends from the production of biomass in photobioreactors to the fractionation of the recovered bio‐oil.
Abstract: A wide variety of terrestrial biomass feed stocks have been identified as suitable candidates for fractionation and conversion into biofuels. In particular, microalgae have been promoted as a future source of transportation fuels primarily because of their stated potential to produce up to 10 times more oil per acre than traditional biofuel crops. Their ability to grow relatively fast, be harvested on a daily basis, and grown in earthen ponds or closed photobioreactors that occupy marginal or poor crop lands using salt or brackish water, are often referenced. When these attractive traits are coupled with the potential to concomitantly harvest valuable co‐products such as biopolymers, proteins, and animal feeds, one can see why microalgae are often touted as biotechnology's “green gold”. The development of large‐scale microalgae farms, however, has been slowed by limitations in downstream processing technology. For example, traditional methods to dewater, extract, and recover bio‐oil from oil‐seeds possess...

328 citations

Journal ArticleDOI
TL;DR: This work addresses energy and water use by presenting a straightforward microalga-to-bio-oil production process and then characterize system performance using steady-state water and energy balances and conclusions drawn regarding system potential for assumed biomass productivities.

91 citations

Journal ArticleDOI
TL;DR: Improvements made to a complimentary metal-oxide-semiconductor fabrication laboratory course to increase student learning and student impact (enrollment).
Abstract: This paper presents improvements made to a complimentary metal-oxide-semiconductor (CMOS) fabrication laboratory course to increase student learning and student impact (enrollment). The three main improvements to the course discussed include: 1) use of a two-mask MOS process that significantly reduced the time students took previously to design, fabricate, and verify the electrical properties of a metal-oxide-semiconductor field-effect transistor (MOSFET) process; 2) students' use of a semicustom integrated circuit (IC) design that significantly reduced the average design and processing time of previous years; and 3) development and implementation of a system of course prerequisites, which allowed a larger number of students to enroll in the course.

17 citations

Proceedings ArticleDOI
06 Nov 2002
TL;DR: The Advanced Thin Film Processes (ATP) course at San Jose State University as mentioned in this paper integrates fabrication of thin films with the design of experiment and statistical analysis of data, and students work through six multi-week modules.
Abstract: A new laboratory course at San Jose State University, Advanced Thin Film Processes, integrates fabrication of thin films with design of experiment and statistical analysis of data. In the laboratory section of this course, students work through six multi-week modules that increase in the complexity of design of experiment and statistical analysis of data. The six modules have been developed with a standard format that includes learning objectives, background on the specific thin film process, theory of design of experiment principles, instructor notes, dry lab exercises, experimental plan worksheets, and assessment tools. While the modules were developed for a semiconductor processing class, they can easily be implemented in other engineering classes. The modules have been developed with a robust framework that allows the instructor to teach design of experiments and statistical analysis of data along with the specific engineering principles related to their class.

13 citations

Journal Article
TL;DR: San Jose State University's new interdisciplinary curriculum in Microelectronics Process Engineering is described in this paper, which emphasizes hands-on thin-film fabrication experience, manufacturing methods such as statistical process control, and fundamentals of materials science and semiconductor device physics.
Abstract: San Jose State University’s new interdisciplinary curriculum in Microelectronics Process Engineering is described. This baccalaureate program emphasizes hands-on thin-film fabrication experience, manufacturing methods such as statistical process control, and fundamentals of materials science and semiconductor device physics. Each course of the core laboratory sequence integrates fabrication knowledge with process engineering and manufacturing methods. The curriculum development process relies on clearly defined and detailed program and course learning objectives. We also briefly discuss our strategy of making process engineering experiences accessible for all engineering students through both Lab Module and Statistics Module series.

10 citations


Cited by
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Journal Article
TL;DR: 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.
Abstract: 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

13,333 citations

Journal ArticleDOI
TL;DR: An empirical and critical analysis on the potential of translating research findings from laboratory scale trials to full scale application and current methods for biomass harvesting and lipid extraction are critically evaluated.

755 citations

01 Jan 2013
TL;DR: In this article, the authors present an empirical and critical analysis on the potential of translating research findings from laboratory-scale trials to full-scale application in bio-diesel production.
Abstract: The economically significant production of carbon-neutral biodiesel from microalgae has been hailed as the ultimate alternative to depleting resources of petro-diesel due to its high cellular concentration of lipids, resources and economic sustainability and overall potential advantages over other sources of biofuels. Pertinent questions however need to be answered on the commercial viability of large scale production of biodiesel from microalgae. Vital steps need to be critically analysed at each stage. Isolation of microalgae should be based on the question of whether marine or freshwater microalgae, cultures from collections or indigenous wild types are best suited for large scale production. Furthermore, the determination of initial sampling points play a pivotal role in the determination of strain selection as well as strain viability. The screening process should identify, purify and select lipid producing strains. Are natural strains or stressed strains higher in lipid productivity? The synergistic interactions that occur naturally between algae and other microorganisms cannot be ignored. A lot of literature is available on the downstream processing of microalgae but a few reports are available on the upstream processing of microalgae for biomass and lipid production for biodiesel production. We present in this review an empirical and critical analysis on the potential of translating research findings from laboratory scale trials to full scale application. The move from laboratory to large scale microalgal cultivation requires careful planning. It is imperative to do extensive pre-pilot demonstration trials and formulate a suitable trajectory for possible data extrapolation for large scale experimental designs. The pros and cons of the two widely used methods for growing microalgae by photobioreactors or open raceway ponds are discussed in detail. In addition, current methods for biomass harvesting and lipid extraction are critically evaluated. This would be novel approach to economical biodiesel production from microalgae in the near future. Globally, microalgae are largest biomass producers having higher neutral lipid content outcompeting terrestrial plants for biofuel production. However, the viscosities of microalgal oils are usually higher than that of petroleum diesel.

695 citations

Journal ArticleDOI
Yusuf Chisti1
TL;DR: The near term outlook for widespread use of algal fuels appears bleak, but fuels for niche applications such as in aviation may be likely in the medium term.

631 citations

01 Jan 2010
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565 citations