gebhart/patrepeval huggingface dataset:
Nondestructive and noncontact method for determining the spring constant of rectangular cantilevers (2007)

We present here an experimental setup and suggest an extension to the long existing added-mass method for the calibration of the spring constant of atomic force microscope cantilevers. Instead of measuring the resonance frequency shift that results from attaching particles of known masses to the end of cantilevers, we load them with water microdrops generated by a commercial inkjet dispenser. Such a device is capable of generating drops, and thus masses, of extremely reproducible size. This makes it an ideal tool for calibration tasks. Moreover, the major advantage of water microdrops is that they allow for a nearly contactless calibration: no mechanical micromanipulation of particles on cantilevers is required, neither for their deposition nor for removal. After some seconds the water drop is completely evaporated, and no residues are left on the cantilever surface or tip. We present two variants: we vary the size of the drops and deposit them at the free end of the cantilever, or we keep the size of the drops constant and vary their position along the cantilever. For the second variant, we implemented also numerical simulations. Spring constants measured by this method are comparable to results obtained by the thermal noise method, as we demonstrate for six different cantilevers.
The performance of an optical fiber pressure probe for ultrasonic studies (1986)

It has been suggested that the three-dimensional quantitative characterization of ultrasonic fields be determined utilizing a miniature optical fiber pressure probe [F. W. Cuomo, 12th International Congress on Acoustics (ICA), Toronto, Canada, paper G7-3 (1986)]. This approach has been found useful in extending experimentally the two-dimensional quantitative information now available with Schlieren imaging methods. In this paper, the experimental results of the ultrasonic optical fiber sensor related to pressure sensitivity, frequency response, and directionality are presented. The active area of this probe is less than 1 mm and the frequency range of interest lies between 500 kHz and 2 MHz.
Preliminary geologic map of the Storm King Mountain Quadrangle, Garfield County, Colorado (1993)

[Surficial deposits shown on the map are estimated to be at least 3 ft thick. Fractional map symbols (for example, Qlo/Qto) are used where loess mantles older surficial deposits and the underlying deposits have been Identified. Thin, discontinuous colluvlal deposits, residual material on bedrock, and some of the artificial fills were not mapped. Also not mapped are four elongate areas above mined coal beds on the north side of the Grand Hogback, near Coal Ridge and Horse Mountain, where the ground surface Is highly A i,^.~J.
Isolation, Amino Acid Sequence and Biological Activities of Novel Long‐Chain Polyamine‐Associated Peptide Toxins from the Sponge Axinyssa aculeata (2011)

A novel family of functionalized peptide toxins, aculeines (ACUs), was isolated from the marine sponge Axinyssa aculeate. ACUs are polypeptides with N-terminal residues that are modified by the addition of long-chain polyamines (LCPA). Aculeines were present in the sponge extract as a complex mixture with differing polyamine chain lengths and peptide structures. ACU-A and B, which were purified in this study, share a common polypeptide chain but differ in their N-terminal residue modifications. The amino acid sequence of the polypeptide portion of ACU-A and B was deduced from 3' and 5' RACE, and supported by Edman degradation and mass spectral analysis of peptide fragments. ACU induced convulsions upon intracerebroventricular (i.c.v.) injection in mice, and disrupted neuronal membrane integrity in electrophysiological assays. ACU also lysed erythrocytes with a potency that differed between animal species. Here we describe the isolation, amino acid sequence, and biological activity of this new group of cytotoxic sponge peptides.
Steric effects of phosphorus ligands in organometallic chemistry and homogeneous catalysis (1977)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSteric effects of phosphorus ligands in organometallic chemistry and homogeneous catalysisChadwick A. TolmanCite this: Chem. Rev. 1977, 77, 3, 313–348Publication Date (Print):June 1, 1977Publication History Published online1 May 2002Published inissue 1 June 1977https://pubs.acs.org/doi/10.1021/cr60307a002https://doi.org/10.1021/cr60307a002research-articleACS PublicationsRequest reuse permissionsArticle Views37168Altmetric-Citations4177LEARN 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
Effect of Sintering Aid and Glass-frit on the Densification and Resistivity of Silver Paste (2008)

The effect of sintering aids and glass-frit on the densification and resistivity of silver paste was investigated in an effort to enhance the sintered density and electrical conductivity of the silver electrode. To prepare Pb-free silver paste for use at low sintering temperatures, two commercial silver powders (0.8 µm and 1.6 µm in size) and 5wt.% lab-synthesized nanoparticles (30-50 nm in size) as a sintering aids were mixed with 3 wt.% or 6 wt.% of glass frit (Bi O -based) using a solvent and three roll mills. Thick films from the silver paste were prepared by means of screen printing on an alumina substrate followed by sintering at 450 C to 550 C for 15 min. Silver thick films from the paste with bimodal particles showed a high packing density, high densification during sintering and low resistivity compared to films created using monomodal particles. Silver nanoparticles as a sintering aid enhanced the densification of commercial silver powder at a low sintering temperature and induced low resistivity in the silver thick film. The glass frit also enhanced the densification of the films through liquid phase sintering; however, the optimum content of glass frit is necessary to ensure that a dense microstructure and low resistivity are obtained, as excessive glass-frit can provoke low conductivity due to the interconnection of the glass phase with the high resistivity between the silver particles.
Integrated instrumental analysis teaching platform with smartphone-operated fluorometer (2020)

The present work describes an Integrated Teaching Tool (ITT) to facilitate the learning process in analytical chemistry. The first instrument integrated in the platform to demonstrate the concept is a wireless, portable fluorometer, produced by 3D printing. The low-cost instrument features a Teensy 3.1 board as the microcontroller, a high-power UV-LED, a secondary filter, a photodiode, and simple auxiliary electronic circuits. Modules of the ITT app were designed to manage the instrument and perform data acquisition remotely from any Android smartphone via Bluetooth, plot and transmit the results. Supporting the educational purpose of the platform, examples of basic concepts about fluorescence as well as technical information about the instrument are also provided to be considered for the app, which also allows instructors to assist and evaluate students through push notifications.
Qualitative and Quantitative Analysis of Dibenzocyclooctadiene Lignans for the Fruits of Korean “Omija” (Schisandra chinensis) (2015)

Background : Dibenzocyclooctadiene lignans are secondary metabolites present abundantly in the fruits belonging to the genus Schisandra. According to previous studies, Schisandra lignans exhibit anti-inflammatory, anti-cancer and anti-diabetic properties, as well as an inhibitory effect on platelet aggregation. Therefore, establishing the Korean “Omija” (Schisandra chinensis) as a lignanrich source, in addition to identifying and quantifying the lignans, is extremely valuable. Methods and Results : Dibenzocyclooctadiene lignans were analyzed with liquid chromatography using diode array detection/ mass spectrometry, from methanol extracts subsequently identified by a constructed chemical library of 50 lignans. A total of 27 components of lignan including gomisin S were identified, of which schisandrin, gomisin A, gomisin N, deoxyschisandrin, γ- schisandrin, and schisandrin C were identified as the major components in the Korean Omija, Schisandra chinensis. These compounds were divided into two groups, S-biphenyl and R-biphenyl based on the configurations of the stereoisomers structures with contents of 661.7 and 1350.1㎎ per 100 g dry weight, respectively. The total lignan content averaged 2011.4㎎ per 100 g dry weight, of which schisandrin and gomisin N comprised the majority (771.8 and 420.5㎎ per 100 g dry weight respectively). Conclusions : Lignans which are present in high quantities in the ripe fruit of Schisandra chinensis are important functional compounds that play a major role in the prevention and treatment of human diseases.
Harris Hawks Optimization for Solving Flexible Jobshop Scheduling Problem Considering Energy Consumption (2021)

Industrial scheduling problem has always been one of the key problems in manufacturing and management planning enterprises. The previous studies mainly concentrate on the optimization of maximum completion time. With the increasing shortage of non-renewable resources and the increasing demand for industrial energy, the energy crisis increasingly restricts production and living needs. Consider the above issues, this paper designs a FJSP with consideration of energy consumption (EFJSP). Meanwhile, an advanced swarm intelligence optimization algorithm: Harris Hawks Optimization (HHO), is introduced to solve the EFJSP. In the experiment, we formulated 4 FJSP instances to examine the performance of the HHO. The results obtained by the HHO compared with the other five classic metaheuristic algorithms. The comparison result displays that our algorithm far exceeds other algorithms in solving EFJSP.
Electrochemical Methods for the Determination of Glucose (1998)

Some of the more commonly used methods for the electrochemical determination of glucose are discussed, with particular emphasis on pulsed amperometric detection and enzyme-based sensors.
Aeroelastic flutter energy harvester design: the sensitivity of the driving instability to system parameters (2011)

This study examines the design parameters affecting the stability characteristics of a novel fluid flow energy harvesting device powered by aeroelastic flutter vibrations. The energy harvester makes use of a modal convergence flutter instability to generate limit cycle bending oscillations of a cantilevered piezoelectric beam with a small flap connected to its free end by a revolute joint. The critical flow speed at which destabilizing aerodynamic effects cause self-excited vibrations of the structure to emerge is essential to the design of the energy harvester because it sets the lower bound on the operating wind speed and frequency range of the system. A linearized analytic model of the device that accounts for the three-way coupling between the structural, unsteady aerodynamic, and electrical aspects of the system is used to examine tuning several design parameters while the size of the system is held fixed. The effects on the aeroelastic system dynamics and relative sensitivity of the flutter stability boundary are presented and discussed. A wind tunnel experiment is performed to validate the model predictions for the most significant system parameters.
M2-Muscarinic Receptors: How Does Ligand Binding Affinity Relate to Intrinsic Activity? (1996)

In this study we looked for evidence regarding a correlation between M2-muscarinic receptor binding affinity and ligand intrinsic activity. Guanine nucleotide-binding protein-coupled receptors have been shown to exist in both a high affinity and a low affinity, agonist state. The agonist [3H]Oxotremorine-M, was used to determine the affinity of compounds for the high affinity state and the antagonist, [3H]N-methylscopolamine, plus GppNHp, was used to determine the affinity for the low agonist state. The magnitude of the difference in the affinity a compound has for the high versus the low agonist state of the receptor has been related to the intrinsic activity of the compound. NMS/Oxo-M ratios were established for muscarinic agonists, partial agonists and antagonists. NMS/Oxo-M ratios varied from 1695 for the agonist carbachol to 1.9 for the antagonist AFDX-166 with intermediate values for the partial agonists oxotremorine-M, pilocarpine and RS86 (233, 36 and 17 respectively). Intrinsic activity was assessed by receptor-mediated Gi-protein GTPase activity. Indeed, a close correlation (r=0.92) was found between the NMS/Oxo-M ratios of the ligands on the one hand, and their ability to activate the M2-receptor coupled Gi-protein on the other.
A novel sulfur mustard (HD) vapor inhalation exposure model of pulmonary toxicity for the efficacy evaluation of candidate medical countermeasures (2021)

This novel exposure system administers targeted HD inhaled doses to generate a small animal model that can be used to evaluate physiological toxicities of inhaled HD on the lungs and for evaluation of potential medical countermeasure treatments.
Design of Multi-States Storage Medium for Phase Change Memory (2007)

A method has been introduced to realize multi-states storage in phase change memory (PCM) by using stacked phase change films with different amorphous resistivity. The amorphous resistivity of each phase change layer was selected to make the stacked films crystallize successively with the increase of current, and so obtain four resistance states. The thickness of each phase change layer was also optimized to ensure enough resistance difference between neighboring storage state. The thermal conduction simulation was performed, and the results indicate that the stacked Si–Sb–Te films with suitable composition, resistivity and thickness in each layer can crystallize successively with the increase of current and realize multi-states storage in PCM. A memory cell with stacked film structure (Si16Sb33Te51/Si4Sb46Te50/Si11Sb39Te50) was prepared. The film thicknesses of Si16Sb33Te51, Si4Sb46Te50 and Si11Sb39Te50 were optimized to be 40, 80, and 20 nm, respectively. The current–voltage (I–V) characteristics and the resistance–current (R–I) characteristics were measured. The results confirmed the four-state storage capability of the memory cell with this stacked film structure.
Autopilot System Based on Color Recognition Algorithm and Internal Model Control Scheme for Controlling Approaching Maneuvers of a Small Boat (2010)

This paper designs and develops an autopilot system for guiding the trajectory of a small boat as it performs an approaching maneuver within a harbor. In the proposed approach, two canvas targets are arranged in cascade on the berth to serve as leading marks to define the leading line along which to guide the boat toward the berthing standby region. The leading marks are captured by a charge-coupled device (CCD) camera mounted on the bow of the boat, and the resulting image is processed using a color recognition scheme to identify the hue (H) and saturation (S) components. The H- and S-component images are subsequently processed using a noise filtering scheme to accurately detect the location of the two targets in the image. The centers of gravity (CGs) of the two leading marks are then calculated, and the separation distance between them is used to compute the deviated heading angle. This angle is then supplied to an internal model control (IMC) autopilot system as an error signal and is used to generate appropriate control commands to steer the boat toward the leading line. The feasibility of the autopilot system is verified by performing a series of experimental approaching maneuvers using a small boat in a real-world harbor setting.
The optimal harvesting of environmental bads (2002)

Our analysis molds two traditional approaches to promoting quality. The first is restoring the stock of quality. The second is curbing its flow of deterioration. Although both approaches are widely used in real world settings, analytic models have tended to focus on one strategy or the other. We consider a class of problems, which we call "SFQ" problems, in which both stocks and flows can be controlled to promote quality. We develop our results in the context of environmental quality, drawing on real-world examples from atomic wastes to zebra mussels. But the lessons are general, and we show how they apply to promoting the quality of both physical and human capital.
Localization of the Gene (SYM1) for Proximal Symphalangism to Human Chromosome 17q21-q22 (1995)

Proximal symphalangism, or Cushing symphalangism (MIM 185800), is an autosomal dominant disorder characterized by ankylosis of the proximal interphalangeal joints. Conductive deafness and reduced flexibility of the ankles have also been observed in affected individuals. We have used polymorphic markers throughout the genome to perform genetic linkage analysis in subsequent generations of the family originally described by Harvey Cushing. We have established linkage for this disorder to markers on chromosome 17 (17q21-q22), with Zmax = 6.98 at theta = 0.05 with marker D17S790.
Opportunistic Spectrum Sharing for D2D-Based URLLC (2019)

A device-to-device (D2D) ultra-reliable low latency communications network is investigated in this paper. Specifically, a D2D transmitter opportunistically accesses the radio resource provided by a cellular network and directly transmits short packets to its destination. A novel performance metric is adopted for finite block-length code. We quantify the maximum achievable rate for the D2D network, subject to a probabilistic interference power constraint based on imperfect channel state information. First, we perform a convexity analysis that reveals that the finite block-length rate for the D2D pair in short-packet transmission is not always concave. To address this issue, we propose two effective resource allocation schemes using the successive convex approximation based iterative algorithm. To gain more insights, we exploit the monotonicity of the average finite block-length rate. By capitalizing on this property, an optimal power control policy is proposed, followed by closed-form expressions and approximations for the optimal average power and the maximum achievable average rate in the finite block-length regime. Numerical results are provided to confirm the effectiveness of the proposed resource allocation schemes and validate the accuracy of the derived theoretical results.
Front Matter: Volume 8930 (2014)

This PDF file contains the front matter associated with SPIE Proceedings Volume 8930, including the Title Page, Copyright information, Table of Contents, Invited Panel Discussion, and Conference Committee listing.
Embolotherapy of Aneurysms Under Temporary Balloon Occlusion of the Neck (1999)

The results suggest that balloon occlusion of the neck allows compact filling and minimizes the risk of dislocation in coil embolotherapy of aneurysms. In nonbifurcational aneurysms, the eccentric balloon catheter seems to be suitable for this treatment concept. Although liquid agents may be safely delivered into the aneurysm under balloon protection, their considerable washout rate after balloon removal requires further refinements of the technique before clinical application is advisable.
Cyber-physical Power System Modeling for Timing-driven Control of Active Distribution Network (2020)

In a cyber-physical power system, active distribution network (ADN) facilitates the energy control through hierarchical and distributed control system (HDCS). Various researches have dedicated to develop the control strategies of primary devices of ADN. However, an ADN demonstration project shows that the information transmission of HDCS may cause time delay and response lag, and little model can describe both the ADN primary device and HDCS as a cyber-physical system (CPS). In this paper, a hybrid system based CPS model is proposed to describe ADN primary devices, control information flow, and HDCS. Using the CPS model, the energy process of primary devices and the information process of HDCS are optimized by model predictive control (MPC) methodology to seamlessly integrate the energy flow and the information flow. The case study demonstrates that the proposed CPS model can accurately reflect main features of HDCS, and the control technique can effectively achieve the operation targets on primary devices despite the fact that HDCS brings adverse effects to control process.
Achieving Multi-Rate Dynamic Sub-Wavelength Service Provisioning in Strongly Connected Light-Trails (SLiTs) (2007)

We report on achieving multi-rate, dynamic, sub-wavelength provisioning of VoIP, video, storage and data services over Strongly connected Light-trails (SLiTs). A novel service differentiation subsystem and associated control are discussed and test-bed results are presented.
Three‐dimensional localisation of NANOG, OCT4, and E‐cadherin in porcine pre‐ and peri‐implantation embryos (2010)

The expression patterns of NANOG and OCT4 have previously been reported to differ markedly between mammalian species indicating distinct species-specific roles during development. We investigate the three-dimensional expression pattern of NANOG and OCT4 in porcine pre- and peri-implantation embryos. The expression of NANOG differed remarkably from that reported in other species. NANOG was not detected in the inner cell mass of hatched porcine blastocysts, but later appeared in the epiblast and hypoblast of spherical blastocysts where Rauber's layer had disintegrated. In pre-gastrulating, filamentous embryos NANOG was localised to nuclei in a minor portion of the epiblast cells in which E-CADHERIN seemed to be up-regulated and OCT4 down-regulated. Later NANOG was restricted to the potential PGCs. OCT4 was detected in inner cell mass, epiblast, and mesoderm, and we found that OCT4 expression, in contrast to earlier speculations, at least in hatched blastocysts, resembles the expression pattern in the mouse embryo.