gebhart/patrepeval huggingface dataset:
Evaluation of acceleration-based disturbance observation for multicopter control (2014)

Small UAVs flying in narrow passages require robustness to turbulence caused by self-induced vortices. Aerial manipulation introduces modeling errors due to payload and parameter changes. When large external forces are applied, small helicopters must fly at orientations far outside hover conditions. The compensation of such uncertainties can be achieved through disturbance observation (DO). An onboard IMU makes the platform well-suited for acceleration-based DO. In this paper, we evaluate a cascaded attitude and position tracking controller for a quadrotor. Quaternions are used for attitude control to allow large orientation angles. We investigate attitude tracking by the boundary-layer integral sliding mode control coupled with acceleration-based DO. The position controller generates singularity-free quaternion and angular velocity signals. The presented controller is experimentally verified and compared to PID and backstepping controllers for trajectory tracking and hovering in turbulent conditions. Compensation of large external forces in the horizontal plane is shown through a stable 45° hover.
Modeling and Analysis of an Electric Power Steering System (1999)

<div class="htmlview paragraph">An Electric Power Steering (EPS) System will be considered in this report. The modeling of this dynamic system will be achieved with both simplicity and usability taken into account. As such, a Reduced Order Model that reveals the important dynamic distinctions of the system will be developed from a more complex one. This model will be used to analyze various closed loop effects such as torque performance, disturbance rejection, noise rejection, road feel, and stability. These fundamental effects (compromises) are used toward the design of a desired control system. This modeling philosophy together with a comprehensive understanding of system compromises is essential to an optimized EPS system.</div>
CONTROL OF RESPIRATORY DISEASE IN RECRUITS WITH TYPES 4 AND 7 ADENOVIRUS VACCINES (1971)

Top., F. H., Jr., B. A. Dudding, P. K. Russell and E. L. Buescher (Walter Reed Army Institute of Research, Wash., D.C. 20012). Control of respiratory disease in recruits with types 4 and 7 adenovirus vaccines. Amer J Epidem 94: 142–146, 1971.—Simultaneous immunization of recruits in a basic combat training brigade with live adenovirus type 7 and type 4 (ADV-7, ADV-4) vaccines during an outbreak of acute respiratory disease (ARD) caused by both adenovirus types led to 95% suppression of ADV-7 associated ARD and 50% reduction in total ARD hospitalizations as compared with a brigade immunized with ADV-4 vaccine alone. A small excess of ADV-4 associated ARD hospitalizations which occurred in the study brigade may have been due in part to the relatively low potency of ADV-4 vaccine used. The combined use of ADV-4 and ADV-7 vaccines proved to be a safe and effective means of controlling ARD in a military trainee population.
Excimer laser micromachining system for the production of bioparticle electromanipulation devices (1997)

Multi-level micro-electrode structures have been produced using excimer laser ablation techniques to obtain devices for the electro-manipulation of bioparticles using traveling electric field dielectrophoresis effects. The system sued to make these devices operates with a krypton fluoride excimer laser at a wavelength of 248 nm and with a repetition rate of 100Hz. The laser illuminates a chrome-on-quartz laser at a wavelength of 248nm and with a repetition rate of 100Hz. The laser illuminates a chrome-on-quartz mask which contains the patterns for the particular electrode structure being made. The masks then imaged by a high-resolution lens onto the sample. Large areas of the mask pattern are transferred to the sample by using synchronized scanning of the mask and workpiece with sub-micron precision. Electrode structures with typical sizes of approximately 10 micrometers are produced and a multi-level device is built up by ablation of electrode patterns and layering insulators. To produce a traveling electric field suitable for the manipulation of bioparticles, a linear array of 10 micrometers by 200 micrometers micro- electrodes, placed at 20 micrometers intervals, is used. The electric field is created by energizing each electrode with a sinusoidal voltage 90 degrees out of phase with that applied to the adjacent electrode. On exposure to the traveling electric field, bioparticles become electrically polarized and experience a linear force and so move along the length of the linear electrode array. The speed and direction of the particles is controlled by the magnitude and frequency of the energizing signals. Such electromanipulation devices have potential uses in a wide range of biotechnological diagnostic and processing applications.
Gas, Dye, and Viral Transport Through Polyurethane Condoms (1991)

<h3>To the Editor.</h3> —While latex condoms provide substantial protection against sexually transmitted diseases (STDs), some allow the passage of the human immunodeficiency virus (HIV),<i>1</i>and HIV-size polystyrene particles.<sup>2</sup>Viruses also sometimes leak through vinyl and latex examination gloves<sup>3</sup>and lamb-skin condoms.<sup>4,5</sup> Polyurethane (PU) film is increasingly used for experimental condoms; assessment of its viral permeability is needed. We investigated gas and liquid phase permeability through the Wisconsin Pharmacal Company's (Jackson, Wis) PU vaginal condom, the Reality Vaginal Pouch. We tested permeability (under pressure heads of 30 mm Hg) of seamed and seamless membrane sections cut from condoms and compared them with sections containing a laser-induced hole (100, 25, 20, ≤10 μm) each larger than such common sexually transmitted viruses as hepatitis B (diameter, ≈42 nm) the HIV (diameter, 105±15 nm), or herpes virus (diameter, ≈135±15 nm). We also tested the permeability under the same pressure of
Investigating Performance of Concurrent Virtual Wi-Fi Interfaces (2015)

The Wi-Fi technology has been fast growing and available on a huge number of electronic devices. Moreover, due to the easiness in deployment a Wi-Fi user is normally in the coverage of several surrounding Wi-Fi access points (APs). The Wi-Fi virtualization, which abstracts a Wi-Fi interface to appear as several virtual ones to the user, is one of the most significant current approaches in improving the performance of Wi-Fi networking. The existence of multiple virtual interfaces enables many useful applications such as aggregating APs' backhaul bandwidth, sharing Internet connections, or increasing range of Wi-Fi networks, etc. In the previously mentioned applications, the authors generally show that a Wi-Fi client with several virtual interfaces has better performances than the one with a physical interface under the considered metrics (e.g., Throughput, mobility, etc.). However, they have not shown the investigation on the performance bounds of the virtual Wi-Fi links. Therefore, it is worthy to investigate those performance parameters. This work extensively evaluates a real virtual Wi-Fi based system to reveal the capacity of downlink, uplink of the virtual Wi-Fi interfaces.
Transdiagnostyczne modele zaburzeń odżywiania i metody terapii na przykładzie poznawczo-behawioralnego modelu Fairburna oraz terapii akceptacji i zaangażowania (2017)

Celem artykulu jest przedstawienie propozycji transdiagnostycznego podejścia do zaburzen odzywiania (anoreksji psychicznej, bulimii psychicznej oraz zaburzen odzywiania nie określonych inaczej) na przykladzie dwoch wzglednie nowych rodzajow terapii: poznawczo-behawioralnej, prowadzonej w oparciu o model Fairburna, oraz terapii akceptacji i zaangazowania ( Acceptance and Commitment Therapy , ACT). W odniesieniu do obu terapii przedstawiono ich podstawy teoretyczne, przyjmowane modele psychopatologii, proponowane mechanizmy zmiany, a takze cele i wybrane techniki pracy terapeutycznej. Zasugerowano kierunki rozwoju dalszych badan porownujących skutecznośc obydwu podejśc, czynniki moderujące ich efektywnośc oraz mozliwości integracji obu modeli.
Controlling Institutional Trading Costs (2002)

Analysis of institutional trading costs typically assumes that profit–maximizing fund managers seek to minimize trading costs. The authors suggest that the bundling of non–trading services into institutional trading commissions is far too pervasive for this assumption to hold generally. Bundling reflects an endemic principal–agent problem in the operation of collective investment schemes that acts to discourage efficient implementation of portfolio decisions taken on behalf of fundholders. Bundling results in excessive trade intermediation, generating higher market impact costs and discouraging the use of more efficient trading platforms (particularly for NYSE stocks). Furthermore, the authors argue that the widespread use of inefficient internal trading cost benchmarks, such as VWAP, makes it hard for institutions to detect the damage to fund performance that results from bundling.
The Slit Lamp And The Laser In Ophthalmology - A New Laser Slit Lamp (1986)

The paper presents a new design of ophthalmic slit lamp which has been especially constructed for use in laser photocoagulators. A solution to various problems arising in existing systems, the optical possibilities for precisely controlling the spot diameter and an easier method of operating the manipulator will to discussed. This slit lamp offers all manufacturers of argon, crypt on and dye photocoaqulators a unique optical interface.
Generating multimedia briefings: coordinating language and illustration (1998)

Communication can be more effective when several media (such as text, speech, or graphics) are integrated and coordinated to present information. This changes the nature of media-specific generation (e.g., language or graphics generation), which must take into account the multimedia context in which it occurs. This paper presents work on coordinating and integrating speech, text, static and animated three-dimensional graphics, and stored images, as part of several systems we have developed at Columbia University. A particular focus of our work has been on the generation of presentations that brief a user on information of interest
Current Bistability and Hysteresis in Strongly Correlated Quantum Wires (2000)

Nonequilibrium transport properties are determined exactly for an adiabatically contacted single-channel quantum wire containing one impurity. Employing the Luttinger liquid model with interaction parameter g, for very strong interactions g less, similar0.2, and sufficiently low temperatures, we find an S-shaped current-voltage relation. The unstable branch with negative differential conductance gives rise to current oscillations and hysteretic effects. These nonperturbative and nonlinear features appear only out of equilibrium.
Molecular physiology and pharmacology of calcitonin. (2006)

Calcitonin is a thirty-two amino acid peptide that contains an N-terminal disulphide bridge and a C-terminal prolineamide residue. It is released from thyroid parafollicular C-cells and its direct actions on the osteoclast account for its physiological effects whether as a hypocalcaemic agent and a potent inhibitor of bone resorption. These effects likely reflect actions upon a number of specific osteoclast cell surface receptors that initiate intracellular signaling events through both cyclic AMP and calcium mediated second messenger pathways. Studies of its potent anti-resorptive effects have significant translational implications in the management of Paget's bone disease, osteoporosis, and hypercalcaemia. This chapter summarizes major concepts in the synthesis and structure of calcitonin and then proceeds to outline its cellular, molecular actions and therapeutic applications, whilst seeking to provide a reference source. More detailed accounts have been given on different aspects of calcitonin physiology and biochemistry in a number of recent reviews by ourselves and others (155,157, Zaidi et al., 1994; 2002).
Transmission-Electron-Microscopy Study on Fivefold Twinned Silver Nanorods (2004)

Structural features of pentagonal Ag nanorods have been investigated by means of transmission electron microscopy (TEM). Cross-section observations directly reveal the remarkable fivefold twinning structure and related defects in this kind of nanomaterial. High-resolution TEM observations in combination with fast-Fourier processing indicate that the well-defined twinning relationship appears on at least two of the five twinning boundaries. Electron-energy-loss spectroscopy analysis on the center regions of the nanorods demonstrates that the Ag-M4,5 peaks shift to lower energy in comparison with results from the Ag crystal.
Paper-Based Sensor for Electrochemical Detection of Silver Nanoparticle Labels by Galvanic Exchange (2015)

Here we report a three-dimensional paper fluidic device configured for electrochemical detection of biomolecules labeled with silver nanoparticles (AgNPs). This new sensor, which we call a NoSlip, represents a major improvement of our previously reported oSlip system. Specifically, detection of AgNPs in the NoSlip is based on galvanic exchange rather than a chemical oxidant (bleach or MnO4– in the oSlip). Galvanic exchange is implemented by depositing a very small amount of gold onto the working electrode. Once the AgNP labels are brought into the proximity of the electrode through the use of magnetic force, a fraction of the Au0 is electrochemically oxidized to Au3+. The Au3+ reacts with the AgNPs to form Ag+ and Au0. The Ag+ is then detected by anodic stripping voltammetry. This new methodology resolves three shortcomings of the oSlip while simultaneously simplifying the basic sensor form factor. First, the NoSlip resolves an oxidant instability issue because of the inherent stability of the Au0 coating on the electrode that is used to electrogenerate the oxidant (Au3+). Additionally, Au3+ is a milder oxidizing agent than bleach or MnO4–, so it does not attack the major components of the NoSlip. Finally, the NoSlip eliminates the need for a slip layer because the oxidant (Au3+) is electrogenerated on demand. The NoSlip is able to detect AgNP labels down to concentrations as low as 2.1 pM, the time to result is ∼7 min, and the cost at the laboratory scale, not including application-specific reagents, is $0.30.
Integrating the Supply Chain … 25 years on (2016)

Purpose – Twenty-five years ago IJPDLM published “Integrating the Supply Chain” (Stevens, 1989). The purpose of that original work was to examine the state-of-the-art in supply chain management (SCM). There have been substantial changes to the landscape within which supply chains function and changes to supply chains themselves. Given these changes it is appropriate to re-visit what is the new state-of-the art and determine whether the 1989 conceptualization requires extending. The authors also attempt to assess whether the evolution of SCM is associated with improved financial performance. The paper aims to discuss these issues. Design/methodology/approach – The authors take a conceptual approach to suggest that SCM is undergoing a transition to devolved, collaborative supply chain clusters. In addition, the authors consider imperatives and models for supply chain change and development. In line with the 1989 work, many of the observations in this invited paper are based on the primary author’s experience. The authors use a selection of financial data from leading firms to assess whether benefits attributed to SCM and changes in supply chain operating models have affected financial performance. Findings – The authors formalize a model for the dynamics of SCM change. The authors also synthesize a number of models of SCM that extend the original, highly cited work. These include goal-oriented networks and devolved, collaborative supply chain clusters. The authors also find the associations between the evolution of SCM and measures of firm financial performance over time to be equivocal. Practical implications – This work proposes two additional operating models that firms can implement in order to improve the efficacy of their supply chains. Originality/value – The authors extend Stevens (1989) original work by synthesizing a number of additional models for SCI.
Genetic-code evolution for protein synthesis with non-natural amino acids (2011)

The genetic encoding of synthetic or "non-natural" amino acids promises to diversify the functions and structures of proteins. We applied rapid codon-reassignment for creating Escherichia coli strains unable to terminate translation at the UAG "stop" triplet, but efficiently decoding it as various tyrosine and lysine derivatives. This complete change in the UAG meaning enabled protein synthesis with these non-natural molecules at multiple defined sites, in addition to the 20 canonical amino acids. UAG was also redefined in the E. coli BL21 strain, suitable for the large-scale production of recombinant proteins, and its cell extract served the cell-free synthesis of an epigenetic protein, histone H4, fully acetylated at four specific lysine sites.
Simplified designs for AAPP soft decision threshold decoders (1995)

New designs for soft-decision threshold decoders are developed to significantly reduce the complexity and increase the coding gain as compared to previously proposed architectures. The approximate a posteriori probability (AAPP) decoder considered here is a digital approximation of the a posteriori probability (APP) decoder introduced by Massey (1976). These designs are useful for high-rate self-orthogonal convolutional codes with a long constraint length. The study case considered in this paper is for a rate 23/24, constraint length 4056 code used in a typical microwave digital radio. The new decoder architecture provides a four-fold decrease in complexity and an additional 0.3 dB coding gain as compared to previous designs.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Isopropanol as a solvent for extraction of cottonseed oil (1947)

Summary Phase equilibrium data for the system; cottonseed oil‐isopropanol‐water were determined at 30°C. and compared with data for the system; cottonseed oilethanol‐water. The relative phase distribution of fatty acids and cottonseed oil in mixtures with isopropanol and water was studied under varying conditions of water and fatty acid concentrations. These tests showed the fatty acids to be highly concentrated in the alcohol‐water phase. Flaked cottonseed meats were extracted in continuous extraction apparatus with 91% isopropanol, 99% isopropanol, and mixtures of commercial hexane and isopropanol. Analytical data on the extractions show that 91% isopropanol is an efficient solvent for extracting active gossypol along with the oil. Rat and swine feeding tests of the isopropanol extracted meal showed it to be highly superior to hydraulic meal as a source of protein. A method was developed for treatment of the cottonseed‐isopropanol miscella by liquid‐liquid extraction to separate purified oil and fatty acid fractions from other materials in the extract.
Factorized Sub-Space Estimation for Fast and Memory Effective I-vector Extraction (2013)

Most of the state–of–the–art speaker recognition systems use a compact representation of spoken utterances referred to as i–vector. Since the “standard” i–vector extraction procedure requires large memory structures and is relatively slow, new approaches have recently been proposed that are able to obtain either accurate solutions at the expense of an increase of the computational load, or fast approximate solutions, which are traded for lower memory costs. We propose a new approach particularly useful for applications that need to minimize their memory requirements. Our solution not only dramatically reduces the memory needs for i–vector extraction, but is also fast and accurate compared to recently proposed approaches. Tested on the female part of the tel-tel extended NIST 2010 evaluation trials, our approach substantially improves the performance with respect to the fastest but inaccurate eigen-decomposition approach, using much less memory than other methods.
On Helmholtz decompositions and their generalizations—An overview (2009)

Abstract Helmholtz' theorem initiates a remarkable development in the theory of projection methods that are adapted to the numerical solution of equations in fluid dynamics and elasticity. There is a dense connection with Hodge‐de Rham decompositions of smooth 1‐forms. We give an overview of this type of decompositions and discuss their applications to vector, quaternionic and Clifford‐valued boundary value problems in the corresponding Hilbert–Sobolev spaces. Copyright © 2009 John Wiley & Sons, Ltd.
Accelerated Hantzsch electrospray synthesis with temporal control of reaction intermediates (2014)

Complex chemical reactions can occur in electrosprayed droplets on the millisecond time scale. The Hantzsch synthesis of 1,4-dihydropyridines was studied in this way using on-line mass spectral analysis to optimize conditions and characterize the product mixture. Changing the distance between the nanospray source and the MS inlet allowed exploration of reaction progress as a function of droplet time-of-flight. Desolvation of the charged microdroplets is associated with transformation from starting material to intermediates and eventually to product as the distance is increased. Results of the on-line experiments require a termination step that discontinuously completes the desolvation process and allows the generated gaseous ions to be used to characterize the state of the system at a particular time. The intermediates seen correspond to those known to occur in the bulk solution-phase reaction. Off-line collection of the sprayed reaction mixture allowed the recovery of 250 mg h<sup>-1</sup> of desired reaction product from a single sprayer, permitting characterization by NMR and other standard methods. A thin film version of the accelerated reaction is described and it could be controlled through the temperature of the collection surface.
Surfactant Properties of Human Meibomian Lipids (2010)

Human meibomian lipids form highly compressible, non-collapsible, multilayered liquid films. These lipids have surfactants that allow them to spread across an aqueous subphase. Their surfactant properties are unaffected by increasing divalent cations or hyperosmolarity but are sensitive to temperature. Cooling of meibomian lipids enhances their surfactant properties.
Using adaptive agents in Java to simulate U.S. Air Force pilot retention (1999)

Article Using adaptive agents in Java to simulate U.S. Air Force pilot retention Share on Authors: Martin P. Gaupp Rated Force Policy Analysis, Air Force Personnel Operations Agency, Arlington, VA Rated Force Policy Analysis, Air Force Personnel Operations Agency, Arlington, VAView Profile , Raymond R. Hill Department of Operational Sciences, Air Force Institute of Technology, Wright-Patterson AFB OH Department of Operational Sciences, Air Force Institute of Technology, Wright-Patterson AFB OHView Profile Authors Info & Claims WSC '99: Proceedings of the 31st conference on Winter simulation: Simulation---a bridge to the future - Volume 2December 1999 Pages 1152–1159https://doi.org/10.1145/324898.325022Online:01 December 1999Publication History 4citation241DownloadsMetricsTotal Citations4Total Downloads241Last 12 Months0Last 6 weeks0 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access