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2009

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Articles 6451 - 6480 of 7616

Full-Text Articles in Physical Sciences and Mathematics

A Superconducting Transistorlike Device Having Good Input-Output Isolation, Ivan Nevirkovets Jan 2009

A Superconducting Transistorlike Device Having Good Input-Output Isolation, Ivan Nevirkovets

Australian Institute for Innovative Materials - Papers

A multiterminal superconducting device with the S1IS2FIS3 structure (where S, I, and F denote a superconductor, an insulator, and a ferromagnetic material) is fabricated and characterized. Introducing a thin ferromagnetic layer into the middle electrode dramatically reduces parasitic back action of the acceptor junction (S1IS2) bias current on the injector junction (S2FIS3)current-voltage characteristic as compared with that for the formerly reported quiteron, a device exploiting similar operation principle.


Dehydrogenation/Rehydrogenation Mechanism In Aluminum Destabilized Lithium Borohydride, Xuebin Yu, Guanglin Xia, Zaiping Guo, Hua-Kun Liu Jan 2009

Dehydrogenation/Rehydrogenation Mechanism In Aluminum Destabilized Lithium Borohydride, Xuebin Yu, Guanglin Xia, Zaiping Guo, Hua-Kun Liu

Australian Institute for Innovative Materials - Papers

LiBH4/Al mixtures with various mol ratios were prepared by ball milling. The hydrogen storage properties of the mixtures were evaluated by differential scanning calorimetry/ thermogravimetry analyses coupled with mass spectrometry measurements. The phase compositions and chemical state of elements for the LiBH4/Al mixtures before and after hydrogen desorption and absorption reactions were assessed via powder x-ray diffraction, infrared spectroscopy, and x-ray photoelectron spectroscopy. Dehydrogenation results revealed that LiBH4 could react with Al to form AlB2and AlLi compounds with a two-step decomposition, resulting in improved dehydrogenation. The rehydrogenation experiments were investigated at 600° …


Ybco Films With Zr4+ Doping Grown By Mod Method, Min Liu, Hongli Suo, Shuai Ye, Dongqi Shi, Yue Zhao, Lin Ma, Meiling Zhou Jan 2009

Ybco Films With Zr4+ Doping Grown By Mod Method, Min Liu, Hongli Suo, Shuai Ye, Dongqi Shi, Yue Zhao, Lin Ma, Meiling Zhou

Australian Institute for Innovative Materials - Papers

YBa2Cu3O7-delta (YBCO) films with Zr doping have been prepared successfully by the trifluoroacetate metal-organic deposition (TFA-MOD) method through dissolving Zr acetylacetonate into the precursor solution. Yttria-stabilized zirconia(YSZ)nanoparticles were detected in the doped YBCO films by XRD. From the analysis of XRD omega and phi scans, the doped films have better out-of-plane and in-plane textures than those of the un-doped YBCO film. Although the doped YBCO films have lower T-c than that of the un-doped YBCO film, a very significant enhancement of normalized J(c) is displayed as compared to the undoped film at applied fields, indicating that an effective pinning force …


Ultrafast Interactions In Condensed Matter As Source Of Terahertz-Frequency Electromagnetic Radiation, Stuart Hargreaves, Roger A. Lewis Jan 2009

Ultrafast Interactions In Condensed Matter As Source Of Terahertz-Frequency Electromagnetic Radiation, Stuart Hargreaves, Roger A. Lewis

Australian Institute for Innovative Materials - Papers

Terahertz (THz, 1012 Hz) frequency radiation has long proven to be elusive relative to microwaves at lower frequenc ies and infrared radiation at higher frequencies. We have investigated several solid-state materials as candidate terahertz-frequency emitters under excitation by ultra-short (12 fs) pulses of near-infrared radiation, and present the results here with a comparison between different emission mechanisms.


The Emission Of Visible Radiation By Peeling Adhesive Tape, Evan Constable, Yunfei Hu, J. Horvat, Roger A. Lewis Jan 2009

The Emission Of Visible Radiation By Peeling Adhesive Tape, Evan Constable, Yunfei Hu, J. Horvat, Roger A. Lewis

Australian Institute for Innovative Materials - Papers

We have observed the emission of visible radiation on peeling adhesive tape from a spool. We have found that there is a fluctuation of light intensity in phase with the rotation of the spool from which the tape is being unwound. We have further found that the amount of light emitted initially increases as the unwinding speed is increased, then decreases at higher speeds.


Feasibility Study: Consolidated Dispatch Center For Police, Fire And Ems Services, Daila Shimek, Ryan Foster, Holly Cooper, Kevin O'Brien, Claudette Robey, Caitlin Johnson Jan 2009

Feasibility Study: Consolidated Dispatch Center For Police, Fire And Ems Services, Daila Shimek, Ryan Foster, Holly Cooper, Kevin O'Brien, Claudette Robey, Caitlin Johnson

All Maxine Goodman Levin School of Urban Affairs Publications

This report provides an assessment of the feasibility of consolidation of public safety dispatch for 14 communities in Cuyahoga County, Ohio. The findings are that consolidation of dispatch services among the participating communities would reduce staffing costs by an estimated $1.7 million annually. Consolidation of services would reduce the duplication of services and redundant capital projects. Instead of the duplicate purchase of expensive equipment by several communities, the cost of large capital will be distributed over a larger base of beneficiaries. Centralization will reduce the physical blueprint of dispatch operations which in turn should reduce operating costs such as natural …


The Biochemical Reactions Of Dry State Dna, April Marrone Jan 2009

The Biochemical Reactions Of Dry State Dna, April Marrone

Electronic Theses and Dissertations

The biochemistry of dry state DNA is of interest to the fields of forensics, ancient DNA, and DNA storage. The exact chemical nature of the degradation of the DNA molecule in the dry state has not been studied prior. If determined what chemical changes the DNA molecule undergoes, to what degree and in what time frame then protocols can be implemented to bypass the impact of this damage or to repair it when necessary. It is suspected that similar reactions occur to the dry state DNA molecule as does to the hydrated molecule. It cannot be assumed, however that these …


Wavefront Sensor For Eye Aberrations Measurements, Costin Curatu Jan 2009

Wavefront Sensor For Eye Aberrations Measurements, Costin Curatu

Electronic Theses and Dissertations

Ocular wavefront sensing is vital to improving our understanding of the human eye and to developing advanced vision correction methods, such as adaptive optics, customized contact lenses, and customized laser refractive surgery. It is also a necessary technique for high-resolution imaging of the retina. The most commonly used wavefront sensing method is based on the Shack-Hartmann wavefront sensor. Since Junzhong Liang's first application of Shack-Hartmann wavefront sensing for the human eye in 1994, the method has quickly gained acceptance and popularity in the ophthalmic industry. Several commercial Shack-Hartmann eye aberrometers are currently available. While the existing aberrometers offer reasonable measurement …


3d Reconnection And Flow Dynamics In The Ssx Experiment, Michael R. Brown, C. D. Cothran, David H. Cohen, Jason Alexander Horwitz , '07, Vernon Hampden Chaplin , '07 Jan 2009

3d Reconnection And Flow Dynamics In The Ssx Experiment, Michael R. Brown, C. D. Cothran, David H. Cohen, Jason Alexander Horwitz , '07, Vernon Hampden Chaplin , '07

Physics & Astronomy Faculty Works

Several new experimental results are reported from plasma merging studies at the Swarthmore Spheromak Experiment (SSX) with relevance to collisionless three-dimensional magnetic reconnection in laboratory and space plasmas. First, recent high-resolution velocity measurements of impurity ions using ion Doppler spectroscopy (IDS) show bi-directional outflow jets at 40 km/s (nearly the Alfven speed). The SSX IDS instrument measures with 1 mu s or better time resolution the width and Doppler shift of the C-III impurity (H plasma) 229.7 nm line to determine the temperature and line-averaged flow velocity during spheromak merging events. High flow speeds are corroborated using an in situ …


Molecules With Multiple Personalities: How Switchable Materials Could Revolutionise Chemical Sensing, Fernando Benito-Lopez, R Byrne, Yizhen Wu, Lorrain Nolan, Jung Ho Kim, King Tong Lau, Gordon G. Wallace, Dermot Diamond Jan 2009

Molecules With Multiple Personalities: How Switchable Materials Could Revolutionise Chemical Sensing, Fernando Benito-Lopez, R Byrne, Yizhen Wu, Lorrain Nolan, Jung Ho Kim, King Tong Lau, Gordon G. Wallace, Dermot Diamond

Australian Institute for Innovative Materials - Papers

Worldwide, the demand for sensing devices that can conform with the requirements of large-scale wireless sensor network (WSN) deployments is rising exponentially. Typically, sensors should be very low cost, low power (essentially self-sustaining), yet very rugged and reliable. At present, functioning WSN deployments involve physical transducers only, such as thermistors, accelerometers, photodetectors, flow meters, to monitor quantities like temperature, movement, light level and liquid level/flow. Remote, widely distributed monitoring of molecular targets remains relatively unexplored, except in the case of targets that can be detected directly using 'non-contact' techniques like spectroscopy. This paper will address the issues inhibiting the close …


Investigation Of Thz Emission By P-Gaassb, Stuart Hargreaves, L J. Bignell, Roger A. Lewis, D Schoenherr, M Saglam, H L. Hartnagel Jan 2009

Investigation Of Thz Emission By P-Gaassb, Stuart Hargreaves, L J. Bignell, Roger A. Lewis, D Schoenherr, M Saglam, H L. Hartnagel

Australian Institute for Innovative Materials - Papers

With a suitable electric field imposed and under illumination by ultrashort pulses of near-infrared radiation, GaAsSb emits THz-frequency electromagnetic radiation. We conclude that high-temperature-grown GaAsSb is a new class of THz source.


Epithelial To Mesenchymal Transition And Breast Cancer, Eva Tomaskovic-Crook, Erik W. Thompson, Jean Paul Thiery Jan 2009

Epithelial To Mesenchymal Transition And Breast Cancer, Eva Tomaskovic-Crook, Erik W. Thompson, Jean Paul Thiery

Australian Institute for Innovative Materials - Papers

Epithelial-mesenchymal plasticity in breast carcinoma encompasses the phenotypic spectrum whereby epithelial carcinoma cells within a primary tumor acquire mesenchymal features and re-epithelialize to form a cohesive secondary mass at a metastatic site. Such plasticity has implications in progression of breast carcinoma to metastasis, and will likely influence response to therapy. The transcriptional and epigenetic regulation of molecular and cellular processes that underlie breast cancer and result in characteristic changes in cell behavior can be monitored using an increasing array of marker proteins. Amongst these markers exists the potential for emergent prognostic, predictive and therapeutic targeting.


Nano-Indentation Of Epoxy Hydro Gels For Soft Tissue Applications, Nandula D. Wanasekara, V. K. Vadlamani, Animesh Agrawal, Vijaya B. Chalivendra, Paul D. Calvert Jan 2009

Nano-Indentation Of Epoxy Hydro Gels For Soft Tissue Applications, Nandula D. Wanasekara, V. K. Vadlamani, Animesh Agrawal, Vijaya B. Chalivendra, Paul D. Calvert

Australian Institute for Innovative Materials - Papers

Nano-indentation characterization studies on epoxy hydro gels used for soft tissue applications are conducted using atomic force microscope (AFM). Two kinds of hydro gels: (a) plain epoxy hydro gels, and (b) epoxy hydro gels reinforced with three-dimensional polyurethane fiber pattern are considered in this study. The three-dimensional fiber pattern is generated using rapid robo-casting technique. Again these two hydro gel types are tested under five different conditions: (a) dry gel, (b) saturated with certain percentage of water, (c) saturated with 100% water, (d) 100% partially immersed in water, and (e) 100% fully immersed in water. Preliminary results obtained on plain …


Organic Bionics: Molecules, Materials And Medical Devices, Gordon G. Wallace, Simon E. Moulton Jan 2009

Organic Bionics: Molecules, Materials And Medical Devices, Gordon G. Wallace, Simon E. Moulton

Australian Institute for Innovative Materials - Papers

The uses of bionic devices that can improve the quality of human life are presented. Significant among them are the bionic ear or the bionic eye which has helped to regain use of important sensory organs. Bionics is the use of a biological entity and electronic devices that are put together to create the required implant.


"Your Cell Will Teach You Everything": Old Wisdom, Modern Science, And The Art Of Attention, Noreen L. Herzfeld Jan 2009

"Your Cell Will Teach You Everything": Old Wisdom, Modern Science, And The Art Of Attention, Noreen L. Herzfeld

Computer Science Faculty Publications

Here is a brief excerpt of the content:

A brother came to Scetis to visit Abba Moses and asked him "Father, give me a word." The old man said to him "Go, sit in your cell, and your cell will teach you everything." 1 Among the Desert Fathers, Christian monks of the fourth and fifth centuries, it was customary for a novice to go to an elder and ask for "a word," a word of advice, of counsel, a word to take home and reflect on. What does this word of advice say to us today?

A Multitasking World

"Your …


Information Flow Model For Commercial Security, Jene Pan Jan 2009

Information Flow Model For Commercial Security, Jene Pan

Master's Projects

Information flow in Discretionary Access Control (DAC) is a well-known difficult problem. This paper formalizes the fundamental concepts and establishes a theory of information flow security. A DAC system is information flow secure (IFS), if any data never flows into the hands of owner’s enemies (explicitly denial access list.)


Test 1951: John Deere 6140d Diesel, Nebraska Tractor Test Lab Jan 2009

Test 1951: John Deere 6140d Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Test 1950 John Deere 6130d Diesel, Nebraska Tractor Test Lab Jan 2009

Test 1950 John Deere 6130d Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Nebraska Summary: S692 Agco Lt85a, Nebraska Tractor Test Lab Jan 2009

Nebraska Summary: S692 Agco Lt85a, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Nebraska Summary: S712 Challenger Mt455b, Nebraska Tractor Test Lab Jan 2009

Nebraska Summary: S712 Challenger Mt455b, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Nebraska Summary: S709 Massey Ferguson 5475, Nebraska Tractor Test Lab Jan 2009

Nebraska Summary: S709 Massey Ferguson 5475, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Nebraska Summary: S708 Massey Ferguson 5470, Nebraska Tractor Test Lab Jan 2009

Nebraska Summary: S708 Massey Ferguson 5470, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Nebraska Summary: S705 Massey Ferguson 5455, Nebraska Tractor Test Lab Jan 2009

Nebraska Summary: S705 Massey Ferguson 5455, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Nebraska Summary: S703 Massey Ferguson 5425, Nebraska Tractor Test Lab Jan 2009

Nebraska Summary: S703 Massey Ferguson 5425, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Nebraska Summary: S744 Massey Ferguson 8660 Iegr, Nebraska Tractor Test Lab Jan 2009

Nebraska Summary: S744 Massey Ferguson 8660 Iegr, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Nebraska Summary: S743 Massey Ferguson 8650 Iegr, Nebraska Tractor Test Lab Jan 2009

Nebraska Summary: S743 Massey Ferguson 8650 Iegr, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Nebraska Summary: S735 Case-Ih Farmall 85u, Nebraska Tractor Test Lab Jan 2009

Nebraska Summary: S735 Case-Ih Farmall 85u, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Nebraska Summary: S761 Case-Ih Farmall 70, Nebraska Tractor Test Lab Jan 2009

Nebraska Summary: S761 Case-Ih Farmall 70, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Nebraska Summary: S754 Challenger Mt675c Iegr, Nebraska Tractor Test Lab Jan 2009

Nebraska Summary: S754 Challenger Mt675c Iegr, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Nebraska Summary: S751 Challenger Mt645c Iegr, Nebraska Tractor Test Lab Jan 2009

Nebraska Summary: S751 Challenger Mt645c Iegr, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …