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Cristiani, Jonathan M.
The US Army Communications-Electronics Research Development and Engineering Center (CERDEC) Fuel Cell Technology Team has executed a series of development programs over the past several years examining fuel cell technologies for soldier power applications in the 15 to 100-Watt range. The focus of this program has been to demonstrate the ...
Breitenstein O - - 2008
Electron beam-induced current (EBIC) can be used to detect electronic irregularities in solar cells, such as shunts and precipitates, and to perform physical characterization of defects by, e.g. measuring the temperature dependence of their recombination activity. Recently also luminescence methods such as electroluminescence (EL) and photoluminescence (PL) have been shown ...
Qin Hao - - 2008
We report a high molar extinction coefficient organic sensitizer for high efficiency dye-sensitized solar cells. In combination with a solvent-free ionic liquid electrolyte, we have demonstrated a approximately 7% cell showing an excellent stability measured under the thermal and light soaking dual stress. This is expected to have an important ...
Rozendal René A - - 2008
Bioelectrochemical systems (BESs), such as microbial fuel cells (MFCs) and microbial electrolysis cells (MECs), are generally regarded as a promising future technology for the production of energy from organic material present in wastewaters. The current densities that can be generated with laboratory BESs now approach levels that come close to ...
Fahr Stephan - - 2008
We suggest a design for a coating that could be applied on top of any solar cell having at least one diffusing surface. This coating acts as an angle and wavelength selective filter, which increases the average path length and absorptance at long wavelengths without altering the solar cell performance ...
Yuan Songhu - - 2009
This preliminary study used a solar cell, instead of direct current (DC) power supply, to generate electric field for electrokinetic (EK) remediation of cadmium-contaminated soil. Three EK tests were conducted and compared; one was conducted on a cloudy and rainy day with solar cell, one was conducted on a sunny ...
Keppner, H.
Hydrogenated microcrystalline Silicon (µc-Si:H) produced by the VHF-GD (Very High Frequency Glow Discharge) process can be considered to be a new base material for thin-film crystalline silicon solar cells. The most striking feature of such cells, in contrast to conventional amorphous silicon technology, is their stability under light-soaking. With respect ...
Renninger, Christopher H.
Magnesium/hydrogen peroxide (Mg-H2O2) semi-fuel cells are mission critical to the Navy as a primary power source for unmanned underwater vehicles (UUV); consequently, this Trident project has sought to improve the electrochemical performance of Mg-H2O2 semi-fuel cells by fabricating porous carbon nanofoam composites as nanostructured electrode scaffolds for palladium nanoparticle electrocatalysts.
ITOH, Takao
この論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました。
ITOH, Takao
この論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました。
Reipert Siegfried - - 2008
Microwave (MW) fixation has been suggested as a method to rapidly immobilize cellular dynamics for fine structural studies in the electron microscope. To show its suitability for studies on cell monolayers, one has to apply MW fixation systematically in correlation with samples on the light microscopy level. Examples for MW ...
Allen, Jan L.
The goal of this research was to explore the use of nanotube titanium dioxide (TiO2) as an electrode material in dye-sensitized solar cells in order to further the development of solar cell technology. TiO2 nanotubes were successfully synthesized by hydrothermal methods, working solar cells were constructed, and comparisons were made ...
Taschek, Walter G.
Fuel cell R&amp;D in the United States before 1958 was minimal but, with the advent of Sputnik, interest in fuel cells exploded. While NASA pursued fuel cells for space applications, Army Labs at Fort Monmouth and Fort Belvoir pursued air breathing fuel cells for tactical and ground applications. By the ...
Xin Hao - - 2008
Poly(3-butylthiophene) (P3BT) nanowires, prepared by solution-phase self-assembly, have been used to construct highly efficient P3BT/fullerene nanocomposite solar cells. The fullerene/P3BT nanocomposite films showed an electrically bicontinuous nanoscale morphology with average field-effect hole mobilities as high as 8.0 x 10(-3) cm2/Vs due to the interconnected P3BT nanowire network revealed by TEM ...
Mutlugun Evren - - 2008
We propose and demonstrate semiconductor nanocrystal based photovoltaic scintillators integrated on solar cells to enhance photovoltaic device parameters including spectral responsivity, open circuit voltage, short circuit current, fill factor, and solar conversion efficiency in the ultraviolet. Hybridizing (CdSe)ZnS core-shell quantum dots of 2.4 nm in diameter on multi-crystalline Si solar ...
Lee Jae Kwan - - 2008
Two criteria for processing additives introduced to control the morphology of bulk heterojunction (BHJ) materials for use in solar cells have been identified: (i) selective (differential) solubility of the fullerene component and (ii) higher boiling point than the host solvent. Using these criteria, we have investigated the class of 1,8-di(R)octanes ...
DeVree, Theresa
ME450 Capstone Design and Manufacturing Experience: Fall 2007
Seo, Jung-Il
This paper proposes an efficient structure which is able to perform self-detection and self-repair for faults in a digital system by imitating the structure of living beings. The self-repair system is composed of artificial cells, which have homogeneous structures in the two-dimension, and spare cells. An artificial cell is composed ...
Moon, Hyun-Wook
The fuel cell systems are one of very useful energy sources. The systems have advantages as renewable and environmental sources. To obtain AC components from fuel cells, it needs inverters. A multilevel converter is used as a power conversion system for a high power fuel cell system. Through harmonic analysis, ...
Kumar, Sachin
Hydrogen and methanol fuel cells are important energy devices. The need for energy has pressed a tremendous drive towards development of smaller and more efficient fuel cells. There are certain limitations in the fundamental fuel cell reactions. For example, the use of platinum (Pt) nanoparticles as fuel cell catalyst poses ...
Edwards, Matthew Bruce, ARC ...
To ensure that photovoltaics contributes significantly to future world energy production, the cost per watt of producing solar cells needs to be drastically reduced. The use of n-type silicon wafers in conjunction with industrial print technology has the potential to lower the cost per watt of solar cells. The use ...
Dirk-Holger Neuhaus
In 2006, around 86% of all wafer-based silicon solar cells were produced using screen printing to form the silver front and aluminium rear contacts and chemical vapour deposition to grow silicon nitride as the antireflection coating onto the front surface. This paper reviews this dominant solar cell technology looking into ...
Evick, Jason W.
This thesis examines the musical language of the first movement of Béla Bartók's Sonata no. 2, for violin and piano (1922). Exploring the use of inversional symmetry, interval cycles, octatonic harmony and the use of Z-cells. It shows how Bartók used symmetry to function analogously to tonal procedures; and examines ...
Thomas Kietzke
Solar cells based on organic semiconductors have attracted much attention. The thickness of the active layer of organic solar cells is typically only 100 nm thin, which is about 1000 times thinner than for crystalline silicon solar cells and still 10 times thinner than for current inorganic thin film cells. ...
Karvonen, Suvi
Journal of Fuel Cell Science and Technology Vol.5 Nr.4, 041009-1 - 041009-9
Rosenberg, Rolf
Lucerne Fuel Cell Forum 2008 (Conference CD), B1301
Himanen, Olli
Fuel Cell Seminar & Exposition. Arizona, USA, 27 - 30 Oct. 2008
de Haart, L. G. ...
Lucerne Fuel Cell Forum 2008 (Conference CD), B1002
Schmich, E.
Crystalline silicon thin-film (cSiTF) solar cells are an attractive alternative to bulk silicon solar cells. At Fraunhofer ISE the concept of the epitaxial wafer equivalent (EpiWE)is followed, where 20 micron of silicon are deposited epitaxially by high temperature atmospheric pressure CVD (APCVD) on a cheap silicon substrate. The EpiWE can ...
Zimmermann, Birger
The inversion of the layer sequence is motivated by the possibility to realise the potentially cheap and reel to reel producible wrap through solar cell concept. In this concept the commonly used ITO electrode is substituted by the transparent conductive polymer poly-(3,4 ethylenedioxythiophene):poly-(styrenesulfonate) (PEDOT:PSS), which is led through via holes ...
Kislyuk V V - - 2008
Nanorods and nanotubes as photoactive materials as well as electrodes in photovoltaic cells have been launched a few years ago, and the literature in this field started to appear only recently. The first steps have shown both advantages and disadvantages of their application, and the main expectation associated with their ...
Takahiro Ohashi, Takao Morita, ...
Purpose of this paper is that authors report a new die structure and an adjustment method in comparison with the traditional shim adjustment. The authors developed a multipoint supported die and suggest supporting cell relocation as adjustment method. The authors evaluate distribution of imposed load on supporting cells and their ...
Sprent Jonathan - - 2008
Burnet appreciated the requirement for self/non-self discrimination and presciently postulated elimination of auto-aggressive cells during early life. He could not have known that, for T cells, a limited degree of autoreactivity is beneficial for the immune system. Here, we review evidence that recognition of self-components keeps T cells alive and ...
Scott Michael J - - 2007
An optically transparent cathode was developed for use in dye-sensitized solar cells. Fluorine-doped tin oxide conducting glass modified with a monolayer of cis-dichloro-bis(4,4'-dicarboxy-2,2'-bipyridine)osmium(II) efficiently reduces the oxidized form of the redox mediator. This transparent cathode transmits light that is not absorbed by the dyed TiO2; consequently, more than one cell ...
Terry Kennair
The nature of structure and bonding in solids is explored starting with packing and building up to the development of unit cells.
Rocheleau, Richard E.
This report covers efforts by the Hawaii Natural Energy Institute of the University of Hawaii under the ONR-funded HEET Initiative that addresses critical technology needs for exploration/utilization of seabed methane hydrates and development/testing of advanced fuel cells and fuel cell systems. Methane hydrates work included: laboratory and analytical investigations of ...
Simburger, E. J.
The PSSC Testbed flight experiment is designed to obtain accelerated space environment degradation data for advanced solar cells. The acceleration factor, with respect to total dose radiation for operational missions, will be obtained by flying the PSSC Testbed in a Geosynchronous Transfer Orbit (GTO). The resulting data will provide DOD ...
Kuang Daibin - - 2007
The co-sensitization of two organic dyes (SQ1 and JK2), which are complementary in their spectral responses, shows enhanced photovoltaic performance compared with that of an individual organic dye-sensitized solar cell. The power conversion efficiency of the co-sensitized organic dye solar cell based on the newly developed binary ionic liquid (solvent-free) ...
Charnwit Ruangchalermwong, 1978-
Thesis (M.Sc.)--Chulalongkorn University, 2004
Casley-Smith, John Royle
A collection of papers (D.Sc.1971) from the Dept. of Zoology, Univof Adelaide
Alvarez Francisco J FJ Department of Neuroscience, Cell Biology & Physiology, Boonshoft School of Medicine, Wright State University, 3640 Col. Glenn Hwy, Dayton, OH 45435, USA. - - 2007
Renshaw cell properties have been studied extensively for over 50 years, making them a uniquely well-defined class of spinal interneuron. Recent work has revealed novel ways to identify Renshaw cells in situ and this in turn has promoted a range of studies that have determined their ontogeny and organization of ...
Kim Jin Young - - 2007
Tandem solar cells, in which two solar cells with different absorption characteristics are linked to use a wider range of the solar spectrum, were fabricated with each layer processed from solution with the use of bulk heterojunction materials comprising semiconducting polymers and fullerene derivatives. A transparent titanium oxide (TiO(x)) layer ...
Martinson Alex B F - - 2007
We introduce high surface area ZnO nanotube photoanodes templated by anodic aluminum oxide for use in dye-sensitized solar cells (DSSCs). Atomic layer deposition is utilized to coat pores conformally, providing a direct path for charge collection over tens of micrometers thickness. Compared to similar ZnO-based devices, ZnO nanotube cells show ...
Prochaska, Mark
Francis J. DiSalvo, R. Bruce van Dover, Hector Abruna
Chen Heng - - 2008
The purpose of this mini-review is to summarize recent research on the seasonal morphological and biochemical changes of Dahlgren cells in the caudal neurosecretory system (CNSS) of the freshwater teleosts carp Carassius auratus. The quantitative proof for these seasonal changes in the morphology and biochemistry of Dahlgren cells reflects the ...
Kwon, Taesoo
Since the number of mobile users is continuously growing, we shrink cell size to increase system capacity. By shrink cell size, handoff rate is increased. To overcome these problems, hierarchical cell structure is proposed. Because efficient use of radio resources is very important, utilization of all resources have to be ...
Atienzar Pedro - - 2007
Four titanium-containing zeolites and microporous molecular sieves differing on the crystal structure and particle size (Ti/Beta, Ti/Beta-60, TS-1 and ETS-10) are prepared, and their activity for solar cells after incorporating N3 (a commercially available ruthenium polypyridyl dye) is tested. All the zeolites exhibit photovoltaic activity, and the photoresponse is quite ...
LIAO, Chien-Nan
Vertical Power MOSFETs are widely designed by deep well structures for breakdown requirement. In this study, we proposed, simulated, and analyzed a “shallow dual well” structure Power MOSFET, which utilize an n-well to cover the conventional p-well. The cell pitch can be reduced and results in an increased cell density. ...
Taggi F - - 2007
In the last years an extremely rapid massive diffusion of the cell phones is occurred. Currently in Italy, as in many other countries, almost all the youngsters and a lot of adults possess a cell phones. This device is enormously useful, but its use can determine negative effects on the ...
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