gebhart/patrepeval huggingface dataset:
On the deployment of a hybrid free-space optic/radio frequency (FSO/RF) mobile ad-hoc network (2005)

The hybrid free-space optics/radio frequency (FSO/RF) network paradigm promises new levels of throughput for sensor and mobile ad-hoc networks. However, several challenges must be addressed before such a network model can be realized. These include a means by which deployed robots can autonomously establish optical links over sufficiently long distances as well as the formulation of a mobile network architecture that can exploit high throughput FSO channels. In this paper, we offer solutions to these problems in the form of hierarchical link acquisition and routing protocols. The heart of our link acquisition system (LAS) is a vision-based alignment phase for locating robot link partners via high zoom camera systems. Identification is accomplished in real-time using a multi-resolution image representation and normalized intensity distribution (NID) as a similarity metric. Our routing protocol relies upon the hierarchical state routing (HSR) model adapted to the FSO/RF paradigm. Experimental results from a large set of link acquisition trials as well as a small scale FSO/RF deployment are provided to support our approach.
Metalorganic vapor phase epitaxy for specialty semiconductor devices (2002)

In this contribution we will present the technique of MOVPE and how it is used today to grow specialty materials and structures that are being investigated for application in future space missions. The material growth is highly developed and the work on devices is going on. We present the device concepts that can be realized using MOVPE. Among these are solar blind AlN UV detectors, high temperature FETs and bipolar transistors from GaN and SiC, low temperature FETs and bipolar transistors from GaAs, InP, GaInP, long wavelength lasers from Sb-compounds, to name but a few. We present the current trends in the production of the underlying film structures.
Low Temperature Synthesis and Surface Plasmon Resonance of Colloidal Lanthanum Hexaboride (LaB<sub>6</sub>) Nanocrystals (2015)

Lanthanum hexaboride (LaB6) nanocrystals, with an ∼1000 nm wavelength localized surface plasmon resonance ideal for interacting with solar near-infrared radiation, have been synthesized for the first time in a relatively low temperature flask reaction using sodium borohydride as both boron source and “solvent”. Furthermore, the incorporation of isophthalic acid as a ligand allows the nanocrystals to disperse, permitting direct incorporation into polymer matrices including poly(methyl methacrylate) and polystyrene, suitable for composites and coatings.
Photobiomodulation reduces drusen volume and improves visual acuity and contrast sensitivity in dry age‐related macular degeneration (2016)

This is the first study demonstrating improvements in functional and anatomical outcomes in dry AMD subjects with PBM therapy. These findings corroborate an earlier pilot study that looked at functional outcome measures. The addition of anatomical evidence contributes to the basis for further development of a non-invasive PBM treatment for dry AMD.
Tracheal tube and laryngeal mask cuff pressure during anaesthesia - mandatory monitoring is in need (2010)

For maintenance of epithelia flow and nerve function and at the same time secure air sealing, this evaluation indicates that the cuff pressure needs to be checked as part of the procedures involved in induction of anaesthesia and eventually checked during surgery.
Green light-emitting diodes with self-assembled In-rich InGaN quantum dots (2007)

A green light-emitting diode (LED) was fabricated using self-assembled In-rich InGaN quantum dots (QDs). The photoluminescence studies showed that the QDs provide thermally stable deeply localized recombination sites for carriers with negligibly small piezoelectric field. The electroluminescence spectra of the LED showed a peak in the green spectral range and the dominant peak was blueshifted with increasing injection current due to the distribution of depth of the potential wells of QDs. The output power of the LED increased with increasing injection current, indicating that the potential wells are thermally stable and deeply localized in the QDs.
Fabrication of Designed Architectures of Au Nanoparticles on Solid Substrate with Printed Self-Assembled Monolayers as Templates (2000)

This paper provides a convenient method for fabricating architectures of Au nanoparticles on solid substrate,with precise position and density control. Our strategy is to modify Au substrate with self-assembled monolayers (SAMs) terminated with different functional groups. They were chosen to be −CH3/−NH2 or −CH3/−SH according to their affinities to Au nanoparticle. Au nanoparticles assemble selectively on −NH2 or −SH terminated locations, the −NH2 functional group binding electrostatically to the nanoparticles whereas the −SH groups bonding chemically. The SAMs, acting as guiding templates for Au nanoparticles, were fabricated by the microcontact printing (μCP) technique. A patterned or unpatterned SAM was prepared by using patterned or unpatterned poly(dimethyl)siloxane (PDMS) stamp, respectively. The coverage of −CH3 terminated SAM in the contact region is controlled by changing the concentration of “ink” solution for the stamp. After immersing the printed SAM into −SH or −NH2 thiol solutions for 2 h, a mixed SAM with a predetermined coverage of −SH or −NH2 was formed in the contact regions, and a pure −SH or −NH2 SAM was formed in the intervening area. The position and density of nanoparticles on the surface were determined by the distribution of the underlying functional groups.
The Quantized Hall Effect (1983)

Quantization of the Hall effect is one of the most surprising discoveries in recent experimental solid-state research. At low temperatures and high magnetic fields the ratio of the Hall voltage to the electric current in a two-dimensional system is quantized in units of h/e(2), where h is Planck's constant and e is the electronic charge. Concomitantly, the electrical resistance of the specimen drops to values far below the resistances of the best normal metals.
Functional Display of a Heterologous Protein on the Surface of <i>Lactococcus lactis</i> by Means of the Cell Wall Anchor of <i>Staphylococcus aureus</i> Protein A (1998)

In this study, we showed that the cell wall anchor of protein A from Staphylococcus aureus is functional in the food-grade organism Lactococcus lactis. A fusion protein composed of the lactococcal Usp45 secretion signal peptide, streptavidin monomer, and the S. aureus protein A anchor became covalently attached to the peptidoglycan when expressed in L. lactis. The streptavidin moiety of the fusion protein was functionally exposed at the cellular surface. L. lactis cells expressing the anchored fusion polypeptide could be specifically immobilized on a biotinylated alkaline phosphatase-coated polystyrene support.
Praxis Makes Perfect: The Benefits of Postgraduate Study (2010)

Michael Daniel explains why it's worth enrolling in postgraduate study, and offers some tips on getting started.
Performance simulation of a high capacity optical disk system (2003)

The Kodak Optical Disk System 6800 features a two-sided quantized linear velocity disk with 6.8 GB of user capacity. The effective data rate (the throughput seen by the user at the host computer interface with the optical disk system) of the optical disk drive and automated disk library has been simulated for a variety of input parameters. Experimental data reveal that the simulations developed for the Kodak 6800 automated disk library systems can be used for general performance characterization or can be customized to determine the response to a specific application of a specific user.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Tunable selective detection for capillary gas chromatography by ion mobility monitoring (1982)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTunable selective detection for capillary gas chromatography by ion mobility monitoringMichael A. Baim and Herbert H. HillCite this: Anal. Chem. 1982, 54, 1, 38–43Publication Date (Print):January 1, 1982Publication History Published online1 May 2002Published inissue 1 January 1982https://pubs.acs.org/doi/10.1021/ac00238a013https://doi.org/10.1021/ac00238a013research-articleACS PublicationsRequest reuse permissionsArticle Views334Altmetric-Citations85LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
HVVFET™: A new 0.25µm channel length RF POWER MOSFET with ultra low feedback capacitance (2010)

A novel short channel vertical RF MOSFET (termed HVVFET™) has been developed for avionics and L-band radar applications. The HVVFET employs a silicided polysilicon spacer that is formed along a vertical dielectric sidewall to serve as the gate. A second silicided poly layer is sandwiched between the gate interconnects and the Si wafer, thereby completely shielding the gate from the drain. Consequently, the HVVFET exhibits superior device characteristics such as a state of the art BVD SS -R ON-SP combination and very low capacitances, in particular, to the authors' knowledge, a record low C gd . The packaged HVVFET device with a total gate width of 64.5 mm shows a C gd of 2.67×10−18 and 2.32×10−18 F/um at 25V and 40V respectively. The capacitance values are 1.65×10−18 and 1.3×10−18 F/um for a bare die under the same biases, representing a five-fold improvement over similar devices in the literature. The packaged HVVFET device exhibits superior RF performances in the 1.0–1.2GHz band, including a 19dB power gain, 0.8W/mm output power at ldB compression and 45% PAE, and a 20:1 load mismatch survivability.
Mechanisms of photochemical reactions in solution. 80. Photochemical oxidation of tris(2,2'-bipyridyl)ruthenium(II) by molecular oxygen (1976)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanisms of photochemical reactions in solution. 80. Photochemical oxidation of tris(2,2'-bipyridyl)ruthenium(II) by molecular oxygenJohn S. Winterle, David S. Kliger, and George S. HammondCite this: J. Am. Chem. Soc. 1976, 98, 12, 3719–3721Publication Date (Print):June 1, 1976Publication History Published online1 May 2002Published inissue 1 June 1976https://doi.org/10.1021/ja00428a062RIGHTS & PERMISSIONSArticle Views306Altmetric-Citations46LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (378 KB) Get e-Alerts Get e-Alerts
Business Process Reengineering and Software Systems Strategy (1994)

Business process reengineering has become a viable way of implementing lean structures. Since information systems are corner stones in supporting the redesign of business processes, there is a need for analysis of the existing software asset's possible role: Can legacy software systems support business process redesign? How do standard software packages fit into the picture? This paper intents to convey an integral view, based on both strategic needs, as well as on technological needs at the operational level. Software Reengineering activity aims at using existing corporate resources in a most economic way, i.e. reusing application knowledge to a maximum extent, while Software Engineering approaches concentrate on handling software development according to end user requirements within a given amount of time and cost.
Asymmetry and Aging of Mycobacterial Cells Lead to Variable Growth and Antibiotic Susceptibility (2011)

Cells use both deterministic and stochastic mechanisms to generate cell-to-cell heterogeneity, which enables the population to better withstand environmental stress. Here we show that, within a clonal population of mycobacteria, there is deterministic heterogeneity in elongation rate that arises because mycobacteria grow in an unusual, unipolar fashion. Division of the asymmetrically growing mother cell gives rise to daughter cells that differ in elongation rate and size. Because the mycobacterial cell division cycle is governed by time, not cell size, rapidly elongating cells do not divide more frequently than slowly elongating cells. The physiologically distinct subpopulations of cells that arise through asymmetric growth and division are differentially susceptible to clinically important classes of antibiotics.
Phase-Constrained Spectrum Deconvolution for Fourier Transform Mass Spectrometry (2016)

This Article introduces a new computationally efficient noise-tolerant signal processing method, referred to as phased spectrum deconvolution method (ΦSDM), designed for Fourier transform mass spectrometry (FT MS). ΦSDM produces interference-free mass spectra with resolution beyond the Fourier transform (FT) uncertainty limit. With a presumption that the oscillation phases are preserved, the method deconvolves an observed FT spectrum into a distribution of harmonic components bound to a fixed frequency grid, which is several times finer than that of FT. The approach shows stability under noisy conditions, and the noise levels in the resulting spectra are lower than those of the original FT spectra. Although requiring more computational power than standard FT algorithms, ΦSDM runs in a quasilinear time. The method was tested on both synthetic and experimental data, and consistently demonstrated performance superior to the FT-based methodologies, be it across the entire mass range or on a selected mass window of interest. ΦSDM promises substantial improvements in the spectral quality and the speed of FT MS instruments. It might also be beneficial for other spectroscopy approaches which require harmonic analysis for data processing.
Evidence of Oxidative Stress in the Neocortex in Incidental Lewy Body Disease (2005)

Oxidative stress has been well documented in the substantia nigra in Parkinson disease (PD), but little is known about oxidative damage, particularly lipoxidation, advanced glycation (AGE), and AGE receptors (RAGE) in other structures, including the cerebral cortex, in early stages of diseases with Lewy bodies. The present study was undertaken to analyze these parameters in the frontal cortex (area 8), amygdala, and substantia nigra in selected cases with no neurologic symptoms and with neuropathologically verified incidental Lewy body disease-related changes, comparing them with healthy age-matched individuals. Results of the present study have shown mass spectrometric and immunologic evidences of increased lipoxidative damage by the markers malondialdehyde-lysine (MDAL) and 4-hydroxynonenal-lysine (HNE), increased expression of AGE in the substantia nigra, amygdala, and frontal cortex, and increased and heterogeneous RAGE cellular expression in the substantia nigra and frontal cortex in cases with early stages of parkinsonian neuropathology. In addition, increased content of the highly peroxidizable docosahexaenoic acid in the amygdala and frontal cortex. These changes were not associated to alpha-synuclein aggregation in cortex, contrasting with aggregates found in SDS-soluble fractions of frontal cortex in dementia with Lewy bodies (DLB) cases. The pattern of lipidic abnormalities differed in DLB and incidental Lewy body disease. Furthermore, although AGE and RAGE expression were raised in DLB, no increase in the total amount of HNE and MDAL adducts was found in the cerebral cortex in DLB. Preliminary analyses have identified 2 proteins with lipoxidative damage, alpha-synuclein and manganese superoxide dismutase (SOD2), in incidentally Lewy body disease cortex. This study demonstrates abnormal fatty acid profiles, increased and selective lipoxidative damage, and increased AGE and RAGE expression in the frontal cortex in cases with early stages of parkinsonian neuropathology without treatment. These findings further support antioxidant therapy in the treatment of PD to reduce cortical damage associated with oxidative stress.
Overcoming T-Cell-Mediated Immunopathology to Achieve Safe Respiratory Syncytial Virus Vaccination (2008)

Respiratory syncytial virus (RSV) is the leading cause of lower respiratory tract disease in young children. Premature infants, immunocompromised individuals, and the elderly exhibit an increased risk for the development of severe disease after RSV infection. Currently, there is not a safe and effective RSV vaccine available, in part due to our incomplete understanding of how severe immunopathology was induced following RSV infection of children previously immunized with a formalin-inactivated RSV vaccine. Much of our current understanding of RSV vaccine-enhanced disease can be attributed to the establishment of multiple mouse models of RSV vaccination. Studies analyzing the RSV-specific immune response in mice have clearly demonstrated that both CD4 and CD8 memory T cells contribute to RSV-induced immunopathology. In this review we will focus our discussion on data generated from the mouse models of RSV immunization that have advanced our understanding of how virus-specific T cells mediate immunopathology and RSV vaccine-enhanced disease.
New Types of Very Efficient Photolabile Protecting Groups Based upon the [2‐(2‐Nitrophenyl)propoxy]carbonyl (NPPOC) Moiety (2004)

Abstract Based upon the photolabile [2‐(2‐nitrophenyl)propoxy]carbonyl group (NPPOC), a large number of modified 2‐(2‐nitrophenyl)propanol derivatives substituted at the phenyl ring (see 23 – 34 and 57 – 76 ) as well as at the side‐chain (see 85 – 92 and 95 – 98 ) were synthesized to improve the photoreactivity of this new type of photolabile entity. The phenyl moiety was also exchanged by the naphthalenyl group (see 102, 103, 105, 108, 110, 113 , and 114 ), the thienyl substituent (see 115, 117, 118 , and 120 ), and the benzothienyl substituent (see 121 ). The 2‐(2‐nitroaryl‐ and heteroaryl)propanols were converted with diphosgene into the corresponding carbonochloridates, which reacted subsequently with thymidine to the thymidine 5′‐(protected carbonates) 123 – 178 as the main reaction products. In several cases, the corresponding 3′‐carbonates and 3′,5′‐dicarbonates 179 – 212 were also isolated and characterized. Photolysis studies under standardized conditions (see Table ) indicated that the rate of photocleavage varies in a broad range depending on the substituents. So far, the thymidine 5′‐[2‐(5‐halo‐2‐nitrophenyl)propyl carbonates] 127 – 129 , 5′‐[2‐(nitro[1,1′‐biphenyl]3‐yl)propyl carbonates] 136 – 139 , 5′‐{2‐[2‐nitro‐5‐(thianthren‐1‐yl)phenyl]propyl carbonate} ( 140 ), 5′‐[2‐(5‐naphthalenyl‐2‐nitrophenyl)propyl carbonates] 141 and 142 , and 5′‐[2‐(2‐nitro‐5‐thienylphenyl)propyl carbonates] 143 and 144 showed the best properties regarding fast and uniform deprotection. Since the nucleobases of 213 – 215 do not influence the photocleavage features, in general, the new type of photolabile building blocks allows in form of their 3′‐phosphoramidites the photolithographic formation of high‐quality biochips.
Metric 3D reconstruction and texture acquisition of surfaces of revolution from a single uncalibrated view (2004)

Image analysis and computer vision can be effectively employed to recover the three-dimensional structure of imaged objects, together with their surface properties. In this paper, we address the problem of metric reconstruction and texture acquisition from a single uncalibrated view of a surface of revolution (SOR). Geometric constraints induced in the image by the symmetry properties of the SOR structure are exploited to perform self-calibration of a natural camera, 3D metric reconstruction, and texture acquisition. By exploiting the analogy with the geometry of single axis motion, we demonstrate that the imaged apparent contour and the visible segments of two imaged cross sections in a single SOR view provide enough information for these tasks. Original contributions of the paper are: single view self-calibration and reconstruction based on planar rectification, previously developed for planar surfaces, has been extended to deal also with the SOR class of curved surfaces; self-calibration is obtained by estimating both camera focal length (one parameter) and principal point (two parameters) from three independent linear constraints for the SOR fixed entities; the invariant-based description of the SOR scaling function has been extended from affine to perspective projection. The solution proposed exploits both the geometric and topological properties of the transformation that relates the apparent contour to the SOR scaling function. Therefore, with this method, a metric localization of the SOR occluded parts can be made, so as to cope with them correctly. For the reconstruction of textured SORs, texture acquisition is performed without requiring the estimation of external camera calibration parameters, but only using internal camera parameters obtained from self-calibration.
Multi-Slit Spectrometry* (1949)

The factors which limit the recording speed and the resolution of infra-red spectra are reviewed, and methods offering increased overall photometric efficiency are examined.The attainment of greater efficiency by means of multi-slit arrangements is discussed and the experimental results are described.
<i>p</i>-type doping limit of carbon in organometallic vapor phase epitaxial growth of GaAs using carbon tetrachloride (1990)

The doping limit of carbon in GaAs grown by organometallic vapor phase epitaxy (OMVPE) using carbon tetrachloride (CCl4) as a p-type dopant source has been investigated by variation of the V/III ratio, growth temperature, and CCl4 flow rate. Lower V/III ratios, lower growth temperatures, and higher CCl4 flow rates generally yielded higher hole concentrations. Hole concentrations as high as 1020 cm−3 were achieved. Attempts to achieve higher hole concentrations via higher CCl4 flow rates were limited by inhibition of growth and morphology degradation. Majority-carrier hole mobilities of carbon-doped GaAs were more than 50% greater than that of zinc-doped GaAs for comparable hole concentrations obtained in previous work. Nonalloyed contacts to this material resulted in contact resistivities of 4×10−7 Ω cm2.