gebhart/patrepeval huggingface dataset:
Surface Acoustic Wave Devices for Harsh Environment Wireless Sensing (2013)

Langasite surface acoustic wave devices can be used to implement harsh-environment wireless sensing of gas concentration and temperature. This paper reviews prior work on the development of langasite surface acoustic wave devices, followed by a report of recent progress toward the implementation of oxygen gas sensors. Resistive metal oxide films can be used as the oxygen sensing film, although development of an adherent barrier layer will be necessary with the sensing layers studied here to prevent interaction with the langasite substrate. Experimental results are presented for the performance of a langasite surface acoustic wave oxygen sensor with tin oxide sensing layer, and these experimental results are correlated with direct measurements of the sensing layer resistivity.
Sequence‐Specific DNA Recognition with Designed Peptides (2017)

Inspired by natural transcription factors (TFs), researchers have explored the potential of artificial peptides for the recognition of specific DNA sequences, developing increasingly sophisticated systems that not only display excellent DNA binding properties, but also are endowed with new properties not found in their natural counterparts. Here we review some of the developments in the field of artificial peptide‐based DNA binders, focusing on the supramolecular and molecular design aspects of such systems.
Appendix E: Causal Relationship between Skin Effect Resistance and Internal Inductance for Rough Conductors (2008)

To derive a causal relationship between the skin effect resistance calculated with rough copper and the internal inductance, we start with the equation for the surface impedance, which was derived in equation (5-29):
Parallax Historiography and Metareference (2023)

Abstract This chapter considers the extent to which intermediality can read cinema and its complex media-historical development by applying the concepts of “parallax historiography” and “metareference” to the work of Japanese filmmaker Nagasaki Shun’ichi. Nagasaki’s Heart, Beating in the Dark—New Version (2005) marks a complex return to his seminal Super 8 feature Heart, Beating in the Dark (1982), acting as a sequel to and remake of the original, while also documenting its own production via fictionalised “behind-the-scenes” sequences. By using conceptual tools that self-reflexively address film’s past and present specificities, this chapter demonstrates how Heart, Beating in the Dark—New Version not only fulfils intermediality’s political potential by abolishing “the schism between art and life” but also conjures a peculiar kind of “intramediality,” absorbed by its own media archaeology, legacy, and specificities. As such, multifarious passages open up between the real and fictional histories of Nagasaki’s Heart, Beating in the Dark diptych, which are presented in blurred parallel.
Molecular characterization of the interaction of sialic acid with the periplasmic binding protein from Haemophilus ducreyi (2018)

The primary role of bacterial periplasmic binding proteins is sequestration of essential metabolites present at a low concentration in the periplasm and making them available for active transporters that transfer these ligands into the bacterial cell. The periplasmic binding proteins (SiaPs) from the tripartite ATP-independent periplasmic (TRAP) transport system that transports mammalian host-derived sialic acids have been well studied from different pathogenic bacteria, including <i>Haemophilus influenzae</i>, <i>Fusobacterium nucleatum</i>, <i>Pasteurella multocida</i>, and <i>Vibrio cholerae</i> SiaPs bind the sialic acid <i>N</i>-acetylneuraminic acid (Neu5Ac) with nanomolar affinity by forming electrostatic and hydrogen-bonding interactions. Here, we report the crystal structure of a periplasmic binding protein (SatA) of the ATP-binding cassette (ABC) transport system from the pathogenic bacterium <i>Haemophilus ducreyi</i> The structure of <i>Hd</i>-SatA in the native form and sialic acid-bound forms (with Neu5Ac and <i>N</i>-glycolylneuraminic acid (Neu5Gc)), determined to 2.2, 1.5, and 2.5 Å resolutions, respectively, revealed a ligand-binding site that is very different from those of the SiaPs of the TRAP transport system. A structural comparison along with thermodynamic studies suggested that similar affinities are achieved in the two classes of proteins through distinct mechanisms, one enthalpically driven and the other entropically driven. In summary, our structural and thermodynamic characterization of Hd-SatA reveals that it binds sialic acids with nanomolar affinity and that this binding is an entropically driven process. This information is important for future structure-based drug design against this pathogen and related bacteria.
Irradiation of Dye-Doped Microspheres with a Strongly Focused Laser Beam Results in Alignment upon Optical Trapping (2002)

The irradiation of dye-doped polystyrene microspheres with an argon ion laser (488 nm) changes their properties and creates photopatterns. These photopatterns can be manipulated by altering the location of the focal point inside the spheres. The illuminated microspheres subsequently undergo one-dimensional rotational diffusion about the optical axis when captured in an optical trap (985 nm). This behavior is well described by a model in which the differently irradiated portions of the microsphere possess different refractive indices.
Supplementary Figure 5 from <i>miR-152</i> Is a Tumor Suppressor microRNA That Is Silenced by DNA Hypermethylation in Endometrial Cancer (2023)

&lt;p&gt;PDF file - 54K&lt;/p&gt;
vPath: precise discovery of request processing paths from black-box observations of thread and network activities (2009)

Discovering end-to-end request-processing paths is crucial in many modern IT environments for reasons varying from debugging and bottleneck analysis to billing and auditing. Existing solutions for this problem fall into two broad categories: statistical inference and intrusive instrumentation. The statistical approaches infer request-processing paths in a “most likely ” way and their accuracy degrades as the workload increases. The instrumentation approaches can be accurate, but they are system dependent as they require knowledge (and often source code) of the application as well as time and effort from skilled programmers. We have developed a discovery technique called vPath that overcomes these shortcomings. Unlike techniques using statistical inference, vPath provides precise path discovery, by monitoring thread and network activities and reasoning about their causality. Unlike techniques using intrusive instrumentation, vPath is implemented in a virtual machine monitor, making it agnostic of the overlying middleware or application. Our evaluation using a diverse set of applications (TPC-W, RUBiS, MediaWiki, and the home-grown vApp) written in different programming languages (C, Java, and PHP) demonstrates the generality and accuracy of vPath as well as its low overhead. For example, turning on vPath affects the throughput and response time of TPC-W by only 6%. 1
Computation Time Analysis of the Magnetic Gear Analytical Model (2017)

This paper focuses on the computation time and precision of a linear 2-D magnetic gear analytical model. Two main models of magnetic gears are studied: 1) the first with an infinite relative permeability of yokes and 2) the second with a finite relative permeability of yokes. These models are based on the subdomain resolution of Laplace and Poisson equations. To accurately compute the magnetic field distribution, it is necessary to take into account certain harmonics of the various rings and other system harmonics due to modulation. Global system harmonics, which increase the value of computation time, must also be taken into account. If the magnetic gear has a high pole number, then computation time increases even more and no longer allows for system optimization. This paper proposes to compute magnetic field distribution using different harmonic selection methods in order to significantly reduce the computation time for the magnetic torque without any loss of accuracy.
Mechanistic Insights into the Decomposition of Fructose to Hydroxy Methyl Furfural in Neutral and Acidic Environments Using High-Level Quantum Chemical Methods (2011)

Efficient catalytic chemical transformation of fructose to hydroxy methyl furfural (HMF) is one of the key steps for attaining industrial level conversion of biomass to useful chemicals. We report an investigation of the reaction mechanisms for the decomposition of fructose to HMF in both neutral and acidic environments at the Gaussian-4 level of theory including calculation of enthalpies, free energies, and effective solvation interactions. In neutral water solvent, the transformation of fructose to HMF involves a four step reaction sequence with four transition states. The effective activation energy relative to fructose in neutral water at 298 K is very large, about 74 kcal/mol, so that transformation in neutral media around this temperature is unlikely. In contrast, the computed potential energy surface is much more favorable for the transformation in acidic media at 498 K, as the effective activation barrier is about 39 kcal/mol. The transformation in acidic media is a much more complex mechanism involving dehydration and hydrogen transfer steps, which are more favorable when protonated intermediates are involved.
>25 Gbit/s LiFi with Laser Based SMD White Light Source (2021)

We demonstrate a high-speed LiFi (Light Fidelity) communication system deploying ultra-high brightness laser-based white light illumination sources in a surface mount device (SMD) package platform. The multi functionality sources provide 1000 lm of white light output with a brightness of 1000 cd/mm 2 and data transmission rates beyond 20 Gbit/s from dual blue laser integrated SMD, and 500 lm of white light output with a brightness of 1000 cd/mm 2 and data transmission rates beyond 25 Gbit/s from dual color of blue and infrared (IR) laser integrated SMD.
Image-Based Environmental Monitoring Sensor Application Using an Embedded Wireless Sensor Network (2014)

This article discusses the experiences from the development and deployment of two image-based environmental monitoring sensor applications using an embedded wireless sensor network. Our system uses low-power image sensors and the Tenet general purpose sensing system for tiered embedded wireless sensor networks. It leverages Tenet's built-in support for reliable delivery of high rate sensing data, scalability and its flexible scripting language, which enables mote-side image compression and the ease of deployment. Our first deployment of a pitfall trap monitoring application at the James San Cannot Mountain Reserve provided us with insights and lessons learned into the deployment of and compression schemes for these embedded wireless imaging systems. Our three month-long deployment of a bird nest monitoring application resulted in over 100,000 images collected from a 19-camera node network deployed over an area of 0.05 square miles, despite highly variable environmental conditions. Our biologists found the on-line, near-real-time access to images to be useful for obtaining data on answering their biological questions.
ChemInform Abstract: A General Method for the Synthesis of Enantiomerically Pure β‐Substituted, β‐Amino Acids Through α‐Substituted Succinic Acid Derivatives. (2000)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Understanding the Relation Between the Performance and Reliability of NAND Flash/SCM Hybrid Solid-State Drive (2015)

A NAND flash memory/storage-class memory (SCM) hybrid solid-state drive (SSD) can achieve higher performance than the conventional NAND flash-only SSD. Error-correcting codes (ECCs) are applied to the SSD to correct bit errors occurring inside the NAND flash and SCM. To correct more bit errors, the stronger ECC is required and the ECC latency increases. This paper evaluates the relation between the performance and the reliability of the NAND flash/SCM hybrid SSD. First, how the ECC latency impacts the SSD performance is analyzed. Then, the SSD performances are evaluated with various data-access patterns. The ECC effect is significantly different among the data-access patterns. Moreover, four scenarios of the SCM reliability are established and the performances are evaluated with the four data-access patterns. When the SCM reliability becomes high, the decrease in the throughput due to the ECC for SCM becomes significantly small. Finally, by setting the acceptable SSD performance, the acceptable bit-error rate (BER) of the SCM is evaluated. The SCM BER can be as high as around 0.9%.
Anisotropy in Rectangular Bars Fabricated via Three-Dimensional Printing (2008)

Rectangular bars were fabricated out of spray dried Al2O3 via three-dimensional printing (3DP). This paper investigates the effects of the current print style, a linear raster scan pattern, on the mechanical properties of the printed parts. The green parts were strongest along the fast axis, and weakest along the z axis, the ratio of mechanical strength being roughly equal to 3. The fired parts, on the other hand, were virtually isotropic. Average modulus of rupture (MOR) for bars that were warm isostatically pressed (WIP) and then fired was ∼ 340 MPa. SEM and 4-pt bending tests suggest that the anisotropy of both the defect structure and the mechanical strength in green bars is largely eliminated upon isostatic pressing and subsequent firing.
EFFICACY OF M-96-018 KAOLIN PARTICLE FILM FOR THRIPS CONTROL ON ONIONS, 1997-1998 (1999)

1998: Onions were planted on 40-inch beds in double rows inWeslaco, TX. Each plot was 6 beds wide x 40 ft, bordered on each side by 1 buffer bed. Applications were made using a high pressure hydraulic sprayerwith 4 nozzles per bed. Four replicated plots for each of two treatments, one untreated check and a methanol check were included in a RCB design. The treatments included: M-96-018 Kaolin Particle Film applied at 400 psi pressure (Lilac Albuz nozzles) and100 gpa application volume; and Ammo 2.5EC applied at 60 psi (TXVS-12 nozzles) and 27 gpa. Treatments were applied on 17, 24 Nov 2, 9, 16, 23, 30 Dec and 6 Jan. Evaluations were made by counting all thrips on 10plants/plot. Counts were made 7 d after each application. Differences among treatments were separated using ANOVA on log (n + 1) transformation of thedata and a Tukey HSD test. Back-transformed means are presented.
A hybrid, networked, wireless system for humidity sensing (2017)

Presented is a hybrid, networked, wireless humidity sensing circuit. The sensor element is a flexible, interdigitated-electrode capacitor that is inkjet-printed on a PET substrate. The variations in capacitance due to the humidity changes are measured through a small (approx. 4 cm × 3 cm), low-power, readout circuit which transmits the measurement wirelessly to a basestation. The transmission is realized through ANT, a wireless sensor network protocol using the ISM band at 2.4 GHz. The sensor output is visualized in real-time through the basestation's software while all the networked sensors are being logged in the background.
Corrected squeezed-film damping simulation validated with a lorentz-force magnetometer operating in vacuum (2017)

A number of corrections to the well-known squeezed-film gas damping model are required to get accurate results for MEMS. This paper reports on the implementation and validation of a corrected squeezed-film damping (SFD) simulation for common MEMS structures, electrostatic comb fingers, under various vacuum levels. Experimental Q factors were measured for the first in-plane resonant mode of a Lorentz-force magnetometer. An acoustic boundary condition was implemented to accommodate, in different areas of the sensor, various ratios a/h of squeezing surface characteristic dimension a to squeezed gas gap h. At a typical operating pressure for this sensor, e.g. 10Pa, corresponding to Knudsen number Kn ~ 670, the simulated Q factor is within +/-25% of the measured value. This new, corrected simulation approach provides, for the first time, a practical and accurate way of predicting Q factors for complex capacitive MEMS sensors such as accelerometers, gyroscopes and magnetometers that operate at low pressure.
Fast maximum power point tracking algorithm based on switching signals modification (2017)

Solar PV energy systems have become one of the most researched and developed renewable energy alternatives due to the long lifetime and reduced maintenance of its components. However, considering the low efficiency in the conversion from light to electrical energy, the optimization of the power electronics converters which deliver the energy from the panels to the electrical grid has fundamental importance in terms of overall efficiency. One of the key elements in a PV system, designed to increase the efficiency, is the maximum power point tracking (MPPT) algorithm which finds the operating point where the maximum power is extracted from the panels. Several MPPT algorithms have been proposed in literature, ranging from the simple but powerful perturb and observe to very sophisticated algorithms involving artificial neural networks. All these methods have been designed with a very slow dynamics hence they cannot follow accurately abrupt modifications of the power curve produced when the irradiation changes. In this paper, a simple MPPT algorithm based on the modification of the switching signals and the analysis of the resulting voltage and power deviation is proposed. This algorithm allows to follow accurately the changes of maximum power point produced by fast variations in the irradiation. Simulation results to validate the proposed algorithm and comparisons with previously published algorithm are shown.
Supplementary Figure 3A from Biological properties of potent inhibitors of class I phosphatidylinositide 3-kinases: from PI-103 through PI-540, PI-620 to the oral agent GDC-0941 (2023)

Supplementary Figure 3A from Biological properties of potent inhibitors of class I phosphatidylinositide 3-kinases: from PI-103 through PI-540, PI-620 to the oral agent GDC-0941
High duty factor plasma generator for CERN’s Superconducting Proton Linac (2010)

CERN’s Linac4 is a 160 MeV linear accelerator currently under construction. It will inject negatively charged hydrogen ions into CERN’s PS-Booster. Its ion source is a noncesiated rf driven H− volume source directly inspired from the one of DESY and is aimed to deliver pulses of 80 mA of H− during 0.4 ms at a 2 Hz repetition rate. The Superconducting Proton Linac (SPL) project is part of the luminosity upgrade of the Large Hadron Collider. It consists of an extension of Linac4 up to 5 GeV and is foreseen to deliver protons to a future 50 GeV synchrotron (PS2). For the SPL high power option (HP-SPL), the ion source would deliver pulses of 80 mA of H− during 1.2 ms and operate at a 50 Hz repetition rate. This significant upgrade motivates the design of the new water cooled plasma generator presented in this paper. Its engineering is based on the results of a finite element thermal study of the Linac4 H− plasma generator that identified critical components and thermal barriers. A cooling system is proposed which achieves the required heat dissipation and maintains the original functionality. Materials with higher thermal conductivity are selected and, wherever possible, thermal barriers resulting from low pressure contacts are removed by brazing metals on insulators. The AlN plasma chamber cooling circuit is inspired from the approach chosen for the cesiated high duty factor rf H− source operating at SNS.
Aerial profiling of terrain to define stream-valley geometry: study report (1976)

A six-month engineering analysis was performed by The Charles Stark Draper Laboratory, Inc., at the request of the U. S. Geological Survey, to investigate the suitability of an airborne instrument package based on inertial techniques to serve as the datum for a laser altimeter in a system for aerial profiling of terrain to determine selected features of stream-valley geometry to an accuracy of ± 0.5 ft. in the vertical coordinate and ± 10 ft. in the horizontal coordinates. Feasible system configuration features a high performance inertial platform incorporating an integral laser tracker, pointing and ranging on retroreflectors on the ground, in order to provide the frequent updates needed to meet the accuracy requirements. In all environments except those of severe gravity gradients the nominal two- by twenty-mile survey area can be covered using three ground-surveyed retroreflectors, interspersed with several unlocated retroreflectors that are surveyed in by the airborne system along a longitudinal path within the river valley when the aircraft arrives over the site. Subsequent transverse profiling runs (traverses that may be spaced as close as one-quarter mile apart) are flown using, in turn, all retroreflectors as updating position references. Pointing and range information from the tracker are optimally combined with the on-board inertial measurements and available gravity data to provide position information and serve as the height datum for a terrain-clearance measuring laser altimeter. Data-logging means and operator display, as well as steering commands to the aircraft autopilot, are provided. The system configuration is capable of operating in single- or twin-engine aircraft including helecopters. It is recommended that work proceed into the design phase.
An Efficient Method for the Preparation of Carboxylic Esters via Mixed Anhydrides by the Promotion of a Catalytic Amount of Lewis Acid (1992)

Abstract Various carboxylic esters are prepared in excellent yields by the reaction of nearly equimolar amounts of silyl derivatives of carboxylic acids and alcohols with p-trifluoromethylbenzoic anhydride in the presence of a catalytic amount of Lewis acid.
A Light‐Activated DNA Polymerase (2009)

When the time is right: The widely applied Thermus aquaticus DNA polymerase was rendered light-activatable by incorporation of the photocaged amino acid ortho-nitrobenzyl tyrosine in place of a key tyrosine residue in the active site (see picture). As the modified enzyme was completely inactive until irradiated with UV light, temporal regulation of polymerase activity was possible.