gebhart/patrepeval huggingface dataset:
Scheduling algorithms for computer-aided line balancing in printed circuit board assembly (2000)

Generalized flexible flow line (GFFL) is a scheduling environment comprising several machine banks which the products visit in the same order but can skip some machine banks. The type of machines in a bank can differ but they are suitable for performing the same manufacturing tasks. To change one product to another demands a set-up operation of the machine. This paper describes several scheduling algorithms for the GFFL problem. The overall structure of these algorithms is similar, consisting of machine allocation and sequencing phases. The algorithms have been integrated into an interactive production scheduling system for electronics assembly. Sample cases are used to illustrate the operation of the system in practice.
Impact of the Type of Diagnostic Assay on Clostridium difficile Infection and Complication Rates in a Mandatory Reporting Program (2012)

Performing PCR instead of EIA/CCA is associated with a >50% increase in the CDI incidence rate. Standardization of diagnostic methods may be indicated to improve interhospital comparison.
A robot compliant wrist system for automated assembly (2002)

A compliant wrist combining passive compliance and a displacement sensor has been developed for a robot manipulator to be used in assembly operations. The wrist provides the necessary flexibility to accommodate transitions as the robot makes contact with the workpiece, to correct positioning error, and to avoid high impact forces in automatic assembly. Sensing from the device makes it possible to actively control the contact forces or to compensate the positioning error during motion and contact. The design features of two prototypes of the device are described. A hybrid position force control scheme using the device and incorporating the passive compliance in the design is presented. Two basic primitives in the assembly process, edge tracking and insertion operation with the compliant wrist, are investigated. A fuzzy controller is presented to assign velocity instead of evaluating force zones in insertion. The experimental results show that the system provides a feasible and economical solution to the provision of necessary compliance in automated assembly and manufacturing.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Guide to the Identification of Poplar Cultivars on the Prairies (1972)

This paper provides those who work with poplars in the prairies region of Canada with an easy-to-use leaf and twig key and detailed morphological descriptions of the more commonly planted cultivars. Recommendations for their use, notes on growth, natural pruning, susceptibility to insects and diseases, and tolerance to climatic extremes are also provided.
Market Entry and Marketing Strategies for Eastern Europe (1995)

No abstract available for this article.
Probing the Theoretical Ultimate Limit of Coaxial Cable Sensing: Measuring Nanometer-Scale Displacements (2019)

Open-ended coaxial probes have been widely explored and commercialized for dielectric spectroscopy at microwave frequencies over the past decades. The working principle of the probes relies on the dependence of the fringing field on the complex permittivity of the material in front of the open end. In this article, inspired by the optical fiber extrinsic Fabry-Perot interferometer, we propose a novel sensing scheme based on an open-ended hollow coaxial cable resonator (OE-HCCR). The resonator is constructed using two reflectors along the coaxial line. The first reflector is a metal post at the RF input end, shorting the inner and outer conductors. The second reflector is the open end, where a metal plate is placed parallel and near the open end. The resonance frequency of the open-ended coaxial resonator depends strongly on the gap distance between the metal plate and the open end of the coaxial cable, due to the modulation of the phase of the reflection coefficient that characterizes the open end. Thus, by correlating the resonance frequency to the gap distance between the metal plate and the open end (or the movement of the metal plate), the OE-HCCR can be used as a displacement sensor device. Importantly, the displacement measurement resolution of the OE-HCCR is three orders of magnitude greater than that of the existing coaxial-cable-based displacement sensors within a certain dynamic range (~0.11 mm), affording a resolution that is comparable to fiber-optic sensors. The mathematical model of the OE-HCCR is discussed in detail, followed by a proof of concept for displacement measurements. The novel OE-HCCR device is suitable for sensing applications in harsh environments and will advance the field of physical/chemical sensing.
Esterification of Kraft lignin as a method to improve structural and mechanical properties of lignin‐polyethylene blends (2016)

ABSTRACT Lignin is a promising candidate for blends with thermoplastic polymers. Still, this endeavour is a challenge due to poor compatibility between both components. In this article, the effect of lignin esterification on the improvement of the compatibility between hardwood Kraft lignin and high‐density polyethylene (PE‐HD) is investigated. For this purpose, lignin was esterified with acetic, propionic, and butyric anhydride; its amount in the blends varied from 10 to 40%. Light microscopic images of blends show a reduction in particle size and a more homogeneous distribution with increasing length of the ester carbon chains (C2 to C4). Modification of lignin enhances the moduli and strength characteristics of the blends. Butyrated lignin performs best, as tensile strength of blends can be retained near that of pure PE‐HD with up to 40% lignin content. An additional investigation of unmodified lignin with reduced particle size confirms that modification is the decisive factor to enhance blend properties; a sole reduction of particle size is insufficient. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44582.
The Next-Generation Water Filter for the Oil and Gas Industry (2013)

Young Technology Showcase Many segments of the oil and gas production industry need improvements in water filtration over traditional methods. This is true because of the trend toward oil and gas production in tighter, less permeable reservoirs and the greater use of enhanced oil recovery (EOR) techniques, many of which involve injecting water into the oil reservoir. To protect the integrity of such reservoirs, the amount of solids introduced into the reservoir through water injection, even solid particles down to 1 µm in size, must be minimized. Conventional filtration methods generally do not meet this requirement. An enhanced filtration technology known as Spectrum Plus Filtration, which incorporates the use of granular micro media, has been proven in other industrial applications and has been introduced and successfully proven in the treatment of produced water. This technology holds the promise of meeting the new requirements while being economical and robust. New oil production practices often involve more water treating and more water injected into wells and reservoirs that are tighter and more costly to develop. This means that there is a greater concern about injecting excessive amounts of solids into these wells and reservoirs. The consequences of this can be Reservoir plugging, which can cause production declines or inadvertent fractures Greater frequency of well and reservoir plugging requiring workovers, acid treatments, and new wells with the associated production loss Reduction in production or in the total recoverable potential of the reservoir Souring of wells through introduction of sulfur-reducing bacteria from water injection In response to the concerns that solids injected into wells can have, specifications for the water quality being injected into such wells are increasingly being defined by a particle size cutoff at about 2 µm, with many specifications requiring that 95% to 98% of the particles greater than 2 µm are removed. Some other new production practices involve other water conditioning process equipment, which in turn requires excellent filtration for it to perform properly. Traditional Water Filtration Methods Table 1 lists some traditional water filtration technologies and their limitations in meeting the new requirements.
Down/Up Conversion in Ln<sup>3+</sup>‐Doped YF<sub>3</sub> Nanocrystals (2005)

Abstract Nanocrystalline Ln 3+ ‐doped YF 3 phosphors have been synthesized via a facile sonochemistry‐assisted hydrothermal route. YF 3 nanoparticles are demonstrated to be a good host material for different lanthanides. Varying the dopants leads to different optical properties. In particular, the feasibility of inducing red, green, and especially blue emission in the Yb 3+ /Er 3+ co‐doped YF 3 sample by up‐conversion excitation in the near‐infrared region is demonstrated. Such unusually strong 411 nm blue up‐conversion emission has seldom been reported in other Yb 3+ /Er 3+ ‐doped systems. The up‐conversion mechanisms have been analyzed.
A long‐term climatology of North Atlantic polar lows (2008)

A dynamical downscaling of the 6‐hourly 1948–2006 NCEP/NCAR re‐analyses for the subarctic region of the North Atlantic has been used to derive a climatology of polar lows by means of a tracking algorithm based on the simulated bandpass filtered MSLP‐fields. This climatology is consistent with the limited observational evidence in terms of frequency and spatial distribution. The climatology exhibits strong year‐to‐year variability but weak decadal variability and a negligible trend. A Canonical Correlation Analysis describes the conditioning of the formation of polar lows by characteristic meridional seasonal mean flow regimes, which favor cold air outbreaks and upper air troughs.
Technology update I: Wiring prognostic tools (2003)

Current wire system inspection processes do not compliment aircraft electrical and electronic systems technology nor do many proposed or existing systems. The volt/ohm meter, the meg/ohm meter, and visual techniques can represent the wire inspection tools in common use today. These two meters only measure conductivity, connectivity, and voltage breakdown strength of the insulation. Visual techniques (mirror and flashlight methods) can only reach about 25 percent of the aircraft wiring system and subjectively identify only physical faults of the insulation surface and simple damaged components. Little can be determined relative to the wire performance, wire insulation, wire bundle, connector, connector pins & backshell, wire supports, grounding, shielding or intended electrical systems performance as a transmission line and part of the larger avionics system of the aircraft. These require data to analyze and manage the health of the wire system. Enhanced zonal analysis procedures (EZAP) are just now becoming available to the electrical repairman for performing simplified zonal inspections to identify obvious wiring faults and the presence of combustible materials. This is done at a predetermined level and interval of inspection and is a portion of the Wire Husbandry Program. It is a preventive measure against fire and an improvement over existing methods. Visual zonal inspection is only 25 percent effective in determining wire system degradation and locating wire faults. Important details for locating physical faults and poor performance of the electrical system are missing. Some of the larger questions such as wire useful life, projected repair schedules for the C & D checks based on delayed maintenance, etc., best tools and repair processes, consumables, etc. are missing. These limitations are being overcome
REPAIR OF LOWER EXTREMITY VENOUS TRAUMA (1974)

RICH, NORMAN M. M.D., COLONEL, MC.USA; HOBSON, ROBERT W. II M.D., LTC, MC, USA; WRIGHT, CREIGHTON B. M.D., MAJOR, MC; FEDDE, C. WILLIAM M.D., MAJOR, MC Author Information
Practical techniques against Pissodes yunnanensis and P.punctatus in large area (2004)

Based on the life history and damage regularity of Pissodes yunnanensis and P.punctatus,the strategy,optimum time,mode and methods of the practical techniques against the pests were dealt with.
On Sparse Representations in Arbitrary Redundant Bases (2004)

The purpose of this contribution is to generalize some recent results on sparse representations of signals in redundant bases. The question that is considered is the following: given a matrix A of dimension (n,m) with m>n and a vector b=Ax, find a sufficient condition for b to have a unique sparsest representation x as a linear combination of columns of A. Answers to this question are known when A is the concatenation of two unitary matrices and either an extensive combinatorial search is performed or a linear program is solved. We consider arbitrary A matrices and give a sufficient condition for the unique sparsest solution to be the unique solution to both a linear program or a parametrized quadratic program. The proof is elementary and the possibility of using a quadratic program opens perspectives to the case where b=Ax+e with e a vector of noise or modeling errors.
Nucleosides and Nucleotides as Potential Therapeutic Agents (1970)

Abstract The present article summarizes recent progress in the study of nucleoside derivatives as antiviral and immunosuppressive agents. A number of 5′‐substituted 5′‐deoxy nucleosides have been found to be permeable and nonincorporable antimetabolites of 5′‐nucleotides. N 6 ‐isopentenyladenosine and analogs show certain promising immunosuppressive activities. Encouraged by the antibody‐stimulating effect of oligonucleotides, we have developed a convenient synthesis of oligonucleotides using fully protected phosphorylated intermediates. A group of tetradeoxyribonucleotides, dApdApdApdX, was prepared for biological and physical evaluations. Nucleotide derivatives may prove valuable in the treatment of several immunological disorders.
CHARACTERISTICS OF DEMINERALIZED GELATIN FROM LIZARDFISH (Saurida spp.) <br> SCALES USING NaOH-NaCl SOLUTION (2017)

Demineralization is required to reduce the ash content of gelatin. Previous studies have confirmed the high quality of gelatin was produced after demineralized using combination of NaCl and aqueous NaOH. The purpose of this study was to determine the effect of NaCl on the properties of gelatin from Lizardfish (Saurida spp.) scales. The cleaned scales was demineralized using a mixture of NaOH 0.5% and NaCl (0- 0.8%), at various temperatures (45, 65, 86oC) and time (30, 60, 90 and 150 minutes). The obtained samples was determined by ash content, pH, the lightness and moisture content. Addition of NaCl reduced the ash, pH and moisture content but increased the whiteness. Gelatin physical properties increased inline with NaCl concentration. Extended demineralized period gave a positive effect on ash, pH and moisture content but opposite effect was observed in the lightness and physical properties. Extended demineralization periods in high temperature reduced gelatin quality. The highest gel strength was found at demineralization for 150 min at 65oC using a combination of NaOH 0.5% and NaCl 0.8%. At this condition, the gelatin has 10%, 1,7%, 248 bloom, and 7,1 cP of moisture content, ash, gel strength and viscosity, respectively, which fulfil SNI 06.3735.1995.
Neutron-Induced Single Event Effects Testing Across a Wide Range of Energies and Facilities and Implications for Standards (2006)

Neutron test data on single event effects for a wide range of SRAMs, facilities (monoenergetic and continuum) and energies (thermal to 800 MeV) are compared. Many modern devices are found to be sensitive to thermal neutrons and rates from this source can dominate in many situations. A significant number of devices suffer latchup and the cross-sections increase with operating voltage and beam energy implying that most test facilities will underestimate the problem for the natural atmospheric environment. Upset sensitivity at 3-5 MeV varies from 5 to 600 less than at high energies and will be of most significance for sources of fission neutrons. These results are related to current and developing standards
A Multiconstrained Ascent Guidance Method for Solid Rocket-Powered Launch Vehicles (2016)

This study proposes a multiconstrained ascent guidance method for a solid rocket-powered launch vehicle, which uses a hypersonic glide vehicle (HGV) as payload and shuts off by fuel exhaustion. First, pseudospectral method is used to analyze the two-stage launch vehicle ascent trajectory with different rocket ignition modes. Then, constraints, such as terminal height, velocity, flight path angle, and angle of attack, are converted into the constraints within height-time profile according to the second-stage rocket flight characteristics. The closed-loop guidance method is inferred by different spline curves given the different terminal constraints. Afterwards, a thrust bias energy management strategy is proposed to waste the excess energy of the solid rocket. Finally, the proposed method is verified through nominal and dispersion simulations. The simulation results show excellent applicability and robustness of this method, which can provide a valuable reference for the ascent guidance of solid rocket-powered launch vehicles.
Skin carriage of bacteria in the human (1966)

Techniques for assessing bacterial population on and in human skin in relation to spacecraft sterilization procedures
Anaplastic thyroid cancer twelve years after radioiodine therapy (1969)

A patient received 2 doses of radioiodine for a diffuse toxic goiter in 1956. Twelve years later at the age of 64 she was operated on for an anaplastic cancer arising in the right lobe of the thyroid. Other thyroid neoplasms following the therapeutic use of radioiodine have also been reported although the incidence may still be within the range of statistical coincidence. There is a definite risk of later malignant change after external radiation to the thyroid in infants and children. The risk in adults seems to be smaller, and the latent period is longer. The experimental and clinical evidence indicate some caution in the therapeutic use of radioiodine.
Drug use in Ontario, Canada. (1990)

Two long-term surveys of drug use have been carried out in Ontario, Canada--one involving middle- and high-school students, and the other adults in the general population. These studies revealed that use of tobacco and alcohol is common and that cannabis is the most widely used illicit drug by both the students and adults (15.9% and 9.5%, respectively, in 1987). Use of other illicit drugs is much less common. The trend data from 1977 to 1987 show a decrease in all drug use among students and a basically stable pattern among adults, with the exception of an upward trend in cocaine use. A study of adult cocaine users in the community found that half had experienced intense cravings for cocaine and other adverse effects. Demographic information was also gathered that made it possible to outline the most common characteristics of cannabis and cocaine users.
Acousto-optical Tunable Filters Based on Single Mode Fibers (2001)

The acousto-optical mode conversion effeciency, filtering bandwidth and wavelength tuning range of the acousto-optical tunable fiters (AOTF) based on single mode (SM) fiber are analyzed theoretically. A fiber AOTF with 0.1 dB insertion loss, 1 nm bandwidth and 30 nm tuning range is realized experimentally.
Mounting of reference surface for a transmission sphere (2016)

The mounting design of a reference surface for a 6-in transmission sphere is presented in this paper. To achieve highprecision measurement in interferometry, the reference wavefront error should be controlled within peak-to-valley (PV) 0.1 λ (λ=0.6328 um) for subtraction in calibration. The reference wavefront error includes the system aberration error and the irregularity of the reference surface. When a transmission sphere is well aligned, the reference wavefront error is dominated by the reference surface. The mounting of the reference surface is imperative because the surface deformation of the reference surface after mounting needs to be lower than 0.1 λ. Besides the mounting deformation, self-weight deformation is also considerable for large optics, such as 6-in reference surface in our study. Consequently, a semikinematic mounting is applied using three small contact areas to avoid over constraint. The transmission sphere in our study is vertically tested on QED aspheric stitching interferometer (ASI), and then the trefoil aberration is occurred. There are two methods to decrease surface deformation after mounting, including deformation correction using computer control optical surfacing (CCOS) and adding soft supporting between hard mounting. In this study, three soft supports are used to share the loads of three rigid supports and then to minimize surface deformation due to gravity. Mounting design and experiments are described in this paper. Finally, the reference wavefront error of the prototype is successfully restrained within 0.1 λ in measurement.
Concatenating syllables for response generation in spoken language applications (2002)

We describe our approach in developing a speech synthesis technique for response generation in domain-specific spoken language applications. Our approach handles two Chinese dialects-Cantonese and Putonghua. We chose the foreign exchange domain, and worked with its constrained vocabulary and response expressions. The syllable is selected to be our basic unit for concatenation. Each unit label includes a two-digit appendix to encode the distinctive features of the left and right coarticulatory context. Our approach attempts to maximize intelligibility and naturalness of the responses within the application domain. Hence the synthesized outputs compare favorably with a domain-independent TD-PSOLA synthesizer.
是的，弗吉尼娅，世界上有圣诞老人! (2013)

八岁的弗吉尼娅·奥汉隆给《纽约太阳报》的编辑写了一封信．很快该报就在1897年9月21日那天的报纸上以无署名社论的形式刊载了回信。从那以后，这封由资深新闻记者弗朗西斯·法塞勒斯·丘奇所撰写的回信便成为历史上重印次数最多的报纸社论，
Antioxidant, Cytotoxic, and Antiproliferative Activities and Total Polyphenol Contents of the Extracts of <i>Geissospermum reticulatum</i> Bark (2016)

<i>Geissospermum</i> species are medically important plants due to their health-promoting effects. The objective of this study was to determine the antioxidant ability and antiproliferative and cytotoxic effects of infusions, tinctures, and ethanolic extracts of <i>Geissospermum reticulatum</i> barks in relation to the contents of total phenolics and flavonoids. Seven samples of barks were collected in various regions of Peruvian Amazonia. We found that the amount of total phenolics in the studied products varied from 212.40 ± 0.69 to 1253.92 ± 11.20 mg GAE/kg. In our study there is a correlation (<i>R</i><sup>2</sup> = 0.7947) between the results of antioxidants assays: FRAP and ORAC for tinctures, infusions, and ethanolic extracts of <i>G. reticulatum</i> barks. We have also observed antiproliferative activities of the ethanolic extracts on normal T-cells. These extracts have caused death on malignant cell lines (THP-1 and HL-60) and this data correlates well with their antioxidant capacity measured by ORAC method. Interestingly, the highest concentration of the ethanolic extract was not toxic in the zebrafish embryo developmental assay. Our results indicate that <i>G. reticulatum</i> is rich in antioxidants and have cytotoxic and antiproliferative properties. The data suggests potential immunosuppressive role of the extracts. This is the first study presenting the results of chemical and biological analysis of multiple preparations from <i>G. reticulatum</i>.