gebhart/patrepeval huggingface dataset:
Fluorescence Determination of Atmospheric NO and NO_2 (1973)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text Armin W. Tucker, Alan B. Petersen, and Milton Birnbaum, "Fluorescence Determination of Atmospheric NO and NO2," Appl. Opt. 12, 2036-2038 (1973) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Design methodology of a combined battery-ultracapacitor energy storage unit for vehicle power management (2004)

Hybrid and electric vehicles (HEV, EV) require some form of energy storage in order to achieve load leveling or efficiently manage power flows, mainly when accelerating or decelerating. Traditionally, batteries have been used but recently ultracapacitors have become potential candidates for energy storage in HEV/EV applications. To this end, this paper first presents a methodology for determining whether an energy storage unit (ESU) should consist of only batteries, only ultracapacitors or a combination of both. An example illustrates the feasibility of the proposed ideas. Finally, the paper concludes with a cost analysis of the different ESU alternatives.
Orthogonally polarized dual-wavelength Nd:LuVO_4 laser at 1086 nm and 1089 nm (2012)

A comparison between the fluorescence spectra of the Nd-doped vanadate crystals (Nd:YVO4, Nd:GdVO4, Nd:LuVO4) for the 4F3/2 → 4I11/2 transition is studied. We numerically analyze the condition of gain-to-loss balance via an uncoated intracavity etalon to achieve the dual-wavelength operation. We further experimentally demonstrate the orthogonally polarized dual-wavelength laser with a single Nd:LuVO4 crystal. The simultaneous dual-wavelength Nd:LuVO4 laser at 1085.7 nm in σ polarization and 1088.5 nm in π polarization is realized. At an incident pump power of 12 W, the average output power obtained at 1085.7 nm and 1088.5 nm is 0.4 W and 1.7 W, respectively.
Infections with flaviviridae. (1999)

The family of the Flaviviridae contains 3 genera: (i) the hepaciviruses, to which belongs Hepatitis C virus (HCV), (ii) the flaviviruses and (iii) the pestiviruses. Over 140 million people, more than four times the number of HIV-positive individuals, are chronically infected with the HCV. Hepatitis G virus (HGV) has not yet been assigned to a genus. The impact of this recently discovered virus is yet to be established. Infections with flaviviruses such as Yellow Fever virus (YFV), Dengue Fever virus (DENV), Japanese Encephalitis virus (JEV) and Tick-borne Encephalitis virus (TBEV) are emerging world-wide. The Pestiviruses, Bovine Viral Diarrhea virus (BVDV), Classical Swine Fever virus (CSFV) and Border Disease virus (BDV) have a serious impact on life-stock. At present, only treatment with interferon, alone or combined with ribavirin, has been approved for the treatment of HCV infections. No specific antivirals are available for the treatment of infections with Hepaci-, Flavi- or Pestiviruses. Possible targets for inhibition of the replication of Flaviviridae are the binding to, and the uptake of the virus in the cell; the internal ribosomal entry site (IRES) of Hepaci- and Pestiviruses; viral proteases; the viral RNA-dependent RNA polymerase and the viral helicase. The search for specific inhibitors of HCV replication is hindered by the absence of an efficient cell culture system for propagation of this virus. In addition, small laboratory animals, including mice, are not susceptible to HCV infection. Flaviviruses may cause infection in mice, but do so mainly following direct intracerebral inoculation. We have established a small animal model for flavivirus infections in SCID mice inoculated peripherally with the murine flavivirus Modoc.
Electric protective devices (2015)

AccessScience is an authoritative and dynamic online resource that contains incisively written, high-quality educational material covering all major scientific disciplines. An acclaimed gateway to scientific knowledge, AccessScience is continually expanding the ways it can demonstrate and explain core, trustworthy scientific information that inspires and guides users to deeper knowledge.
DNA repair in a yeast origin of replication: contributions of photolyase and nucleotide excision repair (2000)

DNA damage formation and repair are tightly linked to protein-DNA interactions in chromatin. We have used minichromosomes in yeast as chromatin substrates in vivo to investigate how nucleotide excision repair (NER) and repair by DNA-photolyase (photoreactivation) remove pyrimidine dimers from an origin of replication ( ARS1 ). The ARS1 region is nuclease sensitive and flanked by nucleosomes on both sides. Photoreactivation was generally faster than NER at all sites. Site-specific heterogeneity of repair was observed for both pathways. This heterogeneity was different for NER and photoreactivation and it was altered in a minichromosome where ARS1 was transcribed. The results indicate distinct inter-actions of the repair systems with protein complexes bound in the ARS region (ORC, Abf1) and a predominant role of photolyase in CPD repair of an origin of replication.
Optimal design of an offset-fed, twin-slot antenna element for millimeter-wave imaging arrays (1994)

The optimal design of an offset-fed, twin-slot antenna suitable for millimeter wave imaging arrays is reported. The dimensions of the antenna and the slot separation for realizing a desirable beam pattern are obtained by using the spectral domain method. The optimal position of the feeding microstrips for perfect impedance matching is determined through a full-wave analysis using the FD-TD method, which takes into consideration both the slot elements and the feeding networks. The input characteristics of an optimally designed antenna is evaluated with a network analyzer, where a reasonable agreement with theoretical predictions is obtained.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Mach-Zehnder optical fiber interferometers for the detection of ultrasound (2000)

Ultrasonic Lamb waves have been extensively investigated for non-destructive testing of materials. Embedded or surface bonded optical fiber, acting as the signal arm of a Mach- Zehnder interferometer, is one method previously utilized to detect the Lamb waves. Optical fibers therefore have potential as permanent sensors for structural monitoring of damage and defects in materials. A greater understanding of the ultrasound interaction with the optical fiber sensor will bring application closer. In order to probe this interaction we built a two channel interferometer allowing ultrasound traveling through a material to be monitored simultaneously by a Mach-Zehnder interferometer and also a Michelson interferometer. The Michelson interferometer allows a non- constat measurement to be made of the absolute surface displacement associated with an ultrasonic Lamb wave. Comparison of the ultrasound signals detected by the two different interferometers provides a greater insight into the detection mechanism and sensitivity of the Mach-Zehnder interferometer. The work is then extended to look at embedded fibers in composite materials and damage detection.
Diagnosing network-wide traffic anomalies (2004)

Anomalies are unusual and significant changes in a network's traffic levels, which can often span multiple links. Diagnosing anomalies is critical for both network operators and end users. It is a difficult problem because one must extract and interpret anomalous patterns from large amounts of high-dimensional, noisy data.In this paper we propose a general method to diagnose anomalies. This method is based on a separation of the high-dimensional space occupied by a set of network traffic measurements into disjoint subspaces corresponding to normal and anomalous network conditions. We show that this separation can be performed effectively by Principal Component Analysis.Using only simple traffic measurements from links, we study volume anomalies and show that the method can: (1) accurately detect when a volume anomaly is occurring; (2) correctly identify the underlying origin-destination (OD) flow which is the source of the anomaly; and (3) accurately estimate the amount of traffic involved in the anomalous OD flow.We evaluate the method's ability to diagnose (i.e., detect, identify, and quantify) both existing and synthetically injected volume anomalies in real traffic from two backbone networks. Our method consistently diagnoses the largest volume anomalies, and does so with a very low false alarm rate.
Magnolamine and Related Compounds. N. An Alternative Synthesis of D (-) and L (+)-N-Methylcoclaurine. (1967)

The optical resolution of N was carried out by means of (+)-and (-)-di-p-toluoyltartaric acid to give the compounds, Na and Nb. These compounds were converted into our objective antipodes, IIa and IIb, by hydrolysis. Absolute configuration of the above compounds was confirmed by conversion of IIa and IIb into D (-)-and L (+)-N-methylcoclaurine, respectively.
A three-level model for plan exploration (1991)

In modeling the structure of task-related discourse using plans, it is important to distinguish between plans that the agent has adopted and is pursuing and those that are only being considered and explored, since the kinds of utterances arising from a particular domain plan and the patterns of reference to domain plans and movement within the plan tree are quite different in the two cases. This paper presents a three-level discourse model that uses separate domain and exploration layers, in addition to a layer of discourse metaplans, allowing these distinct behavior patterns and the plan adoption and reconsideration moves they imply to be recognized and modeled.
On Reliable Dissemination in Wireless Ad Hoc Networks (2010)

Reliable broadcast is a basic service for many collaborative applications as it provides reliable dissemination of the same information to many recipients. This paper studies three common approaches for achieving scalable reliable broadcast in ad hoc networks, namely probabilistic flooding, counter-based broadcast, and lazy gossip. The strength and weaknesses of each scheme are analyzed, and a new protocol that combines these three techniques, called RAPID, is developed. Specifically, the analysis in this paper focuses on the trade-offs between reliability (percentage of nodes that receive each message), latency, and the message overhead of the protocol. Each of these methods excel in some of these parameters, but no single method wins in all of them. This motivates the need for a combined protocol that benefits from all of these methods and allows to trade between them smoothly. Interestingly, since the RAPID protocol only relies on local computations and probability, it is highly resilient to mobility and failures and even selfish behavior. By adding authentication, it can even be made malicious tolerant. Additionally, the paper includes a detailed performance evaluation by simulation. The simulations confirm that RAPID obtains higher reliability with low latency and good communication overhead compared with each of the individual methods.
EXPERIMENTAL HYPERLIPIDEMIA AND ATHEROSCLEROSIS INDUCED BY CHOLESTEROL DIET IN SPF JAPANESE WHITE RABBITS (1983)

Experimental hyperlipidemia and atherosclerosis induced by a cholesterol diet in SPF male and female rabbits (JW/KBL) were investigated by the determination of the lipid contents of the plasma, liver and thoracic aorta; determination of morphological changes of the aortic arch by head angiography; and computer tomography of the brain. Rabbits were fed the diet that contained 1 % cholesterol for eight weeks. The plasma lipid levels began to rise from two weeks after the cholesterol dietwas started, reached the peak four to six weeks later, and then fell in both males and females at eight weeks. The cholesterol of the high density lipoprotein in male rabbit plasma was slightly increased by the cholesterol diet, but not in female rabbits. An increase in the total cholesterol (TC) and triglyceride contents of the liver and an increase in the TC and phospholipid contents of the thoracic aorta were observed at the eighth week. Histological examination of the aortic arch showed marked lipid vacuoles under the endothelial cells, noticeable lipid inclusions in the smooth muscle cells of the intima and granular prominences on the internal surface of the aorta. Head angiography of rabbits fed the cholesterol diet revealed a constriction of the lumina of several arteries due to the lipid depositions. These results suggest that hyperlipidemia and atherosclerosis can be produced at the eighth week using SPF rabbits fed on a cholesterol diet.
Ablation of Lithium Niobate with Pico‐ and Nanosecond Lasers (2012)

Abstract A comparison between picosecond and nanosecond laser sources for the ablation of the technically interesting lithium niobate will be presented in this article. We investigated the influence of the used wavelength and pulse duration on the quality and the possibility to generate thinnest membranes under industrial conditions. It was possible to get structures of few mm 2 with a membrane thickness smaller than 50 μm. Using different laser sources we could reduce the processing time with the same quality as before. We also investigated the heat affected zone by using pico‐ and nanosecond laser sources with a transmission electron microscope. This way, it was possible to see the expansion of thermal deformation in the solid material. With these basic research results, some interesting applications in the field of sensors, nozzle drilling and optical elements could be generated.
Hybrid P4 Programmable Pipelines for 5G gNodeB and User Plane Functions (2022)

This paper focuses on hybrid pipeline designs for User Plane Function and next-generation NodeB leveraging target-specific features and an insightful discussion of P4 and target challenges and limitations. The entire or disaggregated UPF runs on P4 targets and allocates packet processing data paths in P4 hardware or DPDK/x86 software based on flow characteristics (e.g., heavy hitters) and QoS requirements (e.g., low-latency slices). For the hybrid gNodeB, most packet processing is executed in commodity Tofino hardware, while unsupported functions such as Automatic Repeat Request and cryptography are performed in DPDK/x86. We show that our hybrid UPF improves the scalability by 18&#x00D7; and reduces latency up to 50&#x0025;. The results also suggest that careful traffic allocation to pipeline targets is required to optimize each target&#x0027;s strength and avoid processing delays. Finally, we demonstrate a QoS-oriented application of the hybrid UPF and present gNodeB buffer service benchmarks.
Human body communication in vehicle - Transmission characteristics between the forearm and the steering wheel (2014)

This paper proposed an in-vehicle application of human body communication as a form of communication technology that allows stable and low-energy communication within the vehicle. We investigated the transmission characteristics and electric field distribution between a wearable device attached to the driver's forearm and a transmitter mounted on the steering wheel. It was found that at a distance of 130-190 mm between the wearable transmitter and the receiving electrode installed on the surface of the steering wheel, good transmission characteristics, S <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">21</sub> = -27.8 to -31.3 dB, were observed. Furthermore, the greater the transmission distance, the more the transmission characteristics deteriorated. With regard to the electric field distribution, the results indicated that even within the motor vehicle, electric field distribution from near the wearable transmitter to the area around the human body is strong, yielding good transmission characteristics.
Static Detection of Atomicity Violations in Object-Oriented Programs. (2004)

Violations of atomicity are possible sources of errors in parallel programs. A violation occurs if the effect of a method depends on the execution of concurrent threads that operate on the same shared data. Such unwanted thread interference can occur even if access to shared data is ordered through synchronization, hence common techniques for data race detection are not able to find such errors. We have developed a static analysis that infers atomicity constraints and identifies potential violations. The analysis is based on an abstract model of threads and data. A symbolic execution tracks object locking and access and provides information that is finally used to determine potential violations of atomicity. We provide a detailed evaluation of our algorithm for several Java programs. Although the algorithm does not guarantee to find all violations of atomicity, our experience shows that the method is efficient and effective in determining several known synchronization problems in a number of applications and the Java library. The problem of overreporting that is commonly encountered due to conservatism in static analyses is moderate.
Toward Quality Surface Meshing. (2003)

This paper presents recent progress and extensions to TriQuaMesh (TQM) [1], targeted at providing good quality surface meshes: Increased robustness of the 1D mesh generator to handle highly non linear size variations; interior node generation driven by a size variation interpolation domain; improved mesh distortion reduction between the parameter space and the physical space. The concepts of Size Control, Size Map and Triangle Map are introduced to increase the flexibility and the control on the final mesh. These concepts are general and apply to any meshing algorithm, although they will be illustrated with TQM.
A distributed file service based on optimistic concurrency control (1985)

The design of a layered file service for the Amoeba Distributed System is discussed, on top of which various applications can easily be intplemented. The bottom layer is formed by the Amoeba Block Services, responsible for implementing stable storage and repficated, highly available disk blocks. The next layer is formed by the Amoeba File Service which provides version management and con-cur~ncy control for tree-structured files. On top of this layer, the appficafions, ranging from databases to source code control systems, determine the structure of the file trees and provide an interface to the users.
High precision, high-heat-load mirror for the APS diagnostics beamline (abstract) (1996)

A high precision mirror for measuring the storage ring beam size is under fabrication for the APS diagnostics beamline. The mirror, which will be located at 12.9 meters from the bending magnet source, is required to maintain less than 1.6 microradian slope error. The mirror design consists of a slot in the center in order to reduce incident power from the 300-mA, 7-GeV beam during normal operation. Water channels with fins are machined in the GlidCop mirror body to protect it against extremely high heat loads under accidental beam deviations. The mechanical design of the mirror, and results from a thermal analysis are presented in this paper.
System Capacity Analysis of Millimeter Wave Band with Polarized Antenna Structure (2018)

In 5th generation (5G) mobile communication systems, beamforming and massive antenna structure (MAS) are considered to provide high quality services. However, MAS with beamforming has challenges that need to be addressed such as interference from adjacent beams and antenna spacing. Since polarized antenna can avoid correlation between antennas by using orthogonal polarization, it can solve the interference and limited space issues. Based on these advantages of polarized antenna, we study the performance of 5G mobile communication systems. In our system, MAS with polarized antenna is applied for base station (BS). Moreover, user equipment (UE) also uses polarized antenna to reduce interference. The simulation results show MAS with polarized antenna can reduce interference caused by adjacent beams compared with non-polarized antenna structure. Especially, the cross polarization can efficiently improve the system capacity.
Infant Weight Gain in Week 1 and Body Mass Index at Age 2: A Prospective Cohort Study in an Urban Population (2015)

Objective Determine if change in weight in week 1 of life and feeding type in week 1 and month 1 of life were associated with BMI蠅85th percentile at 2 years. Methods: Newborns enrolled into a prospective cohort study at an urban hospital from 2008‐2012. We recorded all feeds during week 1 of life and assessed feeding at weeks 2, 3, and 4 with 24‐hour recall. We weighed and measured infants at birth, 7 days, and 2 years. At 2 years, we categorized children with BMI˂85th percentile as normal weight, and BMI蠅85th percentile as overweight. Results: There was a significant association between change in weight during week 1 and BMI at 2 years. In the multivariate analysis, infants gaining 蠅100g in week 1 were 2.5 times more likely to be overweight at age 2 compared to those who lost weight (p=.02). We found a significant association between feeding type and change in weight during week 1. Mean change in weight for exclusively breastfed infants was ‐7.7g and 53.57g for infants receiving any formula (p=.01). There was no significant association between feeding type at 1 week or 1 month and BMI at 2 years. Conclusions Weight gain of 100g or more during week 1 was associated with BMI&gt;85th percentile at age 2. Infants receiving exclusive breast milk in week 1 gained less weight than formula feeders. Funding: National Research Initiative Grant
Athermal and low loss ridge silicon waveguides (2010)

In this paper, we investigate athermal and low propagation loss silicon-on-insulator (SOI) rib waveguides. Propagation losses have been modeled for different dimensions of ridge waveguides achieving good agreement with experimental measurements. At certain waveguide widths, it is possible to obtain low propagation losses for both TE (transverse electric) and TM (transverse magnetic) modes. Racetrack ring resonator structures based on ridge waveguides covered by a polymer have been fabricated, aiming for an athermal design and therefore, a very small temperature dependent wavelength shift. Design guidelines for temperature insensitive and small propagation loss ridge waveguides are presented in this paper together with experimental data.
Antiviral drug sensitivity in ocular herpes simplex virus infection. (1990)

Thirty-nine herpes simplex virus (HSV) isolates were assayed for their sensitivity to 10 different antiviral agents. Of these 39 HSV isolates 10 were cultured from recipient buttons obtained at penetrating keratoplasty in patients with inactive stromal scarring due to recurrent herpetic keratitis, 25 were cultured from patients with conjunctival and ulcerative ocular infections, and the remaining four were laboratory strains with known drug sensitivity patterns, thus providing controls for the experiment. All but one of the 35 clinical isolates of HSV were type 1 and all were sensitive to the 10 antiviral agents. A single type 2 isolate from a young man with recurrent conjunctivitis proved to be resistant to a number of the antiviral agents. Since many of the clinical isolates had been exposed to multiple and protracted antiviral drug treatment, it is suggested that antiviral drug resistance in type 1 HSV ocular infection is not a significant problem.
Proactive Safety Management in Trauma Care: Applying the Human Factors Analysis and Classification System (2017)

This study helps validate the use of HFACS as a tool for classifying observational data in a variety of medical domains. By identifying preconditions for unsafe acts, health care professionals may be able to construct a more robust safety management system that may provide a better understanding of the types of threats that can impact patient safety.