gebhart/patrepeval huggingface dataset:
Single-shot deflectometry for dynamic 3D surface profile measurement by modified spatial-carrier frequency phase-shifting method (2019)

We propose a new concept of single-shot deflectometry for real-time measurement of three-dimensional surface profile using a single composite pattern. To retrieve an accurate phase from one-frame composite pattern, we adapt the Fourier Transform (FT) method and the spatial carrier-frequency phase-shifting (SCPS) technique to our proposed deflectometry. Based on Lissajous figure and ellipse fitting method, we also correct the phase extraction error in SCPS technique by reducing the effect of background and modulation variations. The proposed technique is verified by comparing our measurement results with phase-shifting deflectometry, and the maximum difference between two measurement results is less than 30 nm rms. We also test the robustness to vibration and the measurement capability for dynamic object.
Immunogenicity in chimpanzees of experimental hepatitis B vaccines prepared from intact hepatitis B virus, purified polypeptides, or polypeptide micelles (1982)

The immunogenicity of three experimental hepatitis B vaccines was evaluated in chimpanzees. Although no antibody to hepatitis B surface antigen (anti-HBs) was detected in two chimpanzees that received an aqueous polypeptide vaccine subcutaneously, a strong anti-HBs response was observed two and ten weeks, respectively, following challenge with hepatitis B virus. Inoculation of two additional chimpanzees with a micellar preparation of these polypeptides by the intravenous route resulted in anti-HBs production in one of the chimpanzees. Two chimpanzees inoculated subcutaneously with an aqueous vaccine of formalin-inactivated intact hepatitis B virus developed anti-HBs in low titers, but the development of antibody to the hepatitis B core antigen following challenge inoculations suggested that subclinical HBV infections may have occurred despite prior vaccination.
Function recovery after chemobleaching (FRAC): Evidence for activity silent membrane receptors on cell surface (2004)

Membrane proteins represent approximately 30% of the proteome of both prokaryotes and eukaryotes. Unique to cell surface receptors is their biogenesis pathway, which involves vesicular trafficking from the endoplasmic reticulum through the Golgi apparatus and to the cell surface. Increasing evidence suggests specific regulation of biogenesis for different membrane receptors, hence affecting their surface expression. We report the development of a pulse-chase assay to monitor function recovery after chemobleaching (FRAC) to probe the transit time of the Kir2.1 K+ channel to reach the cell surface. Our results reveal that the channel activity is contributed by a small fraction of channel protein, providing evidence of activity-silent "sleeping" molecules on the cell surface. This method distinguishes molecular density from functional density, and the assay strategy is generally applicable to other membrane receptors. The ability of the reported method to access the biogenesis pathways in a high-throughput manner facilitates the identification and evaluation of molecules affecting receptor trafficking.
Effect of nitrogen-containing plasma on adherence, friction, and wear of radiofrequency-sputtered titanium carbide coatings (1979)

Friction and wear experiments on 440C steel surfaces that were rf sputtered with titanium carbide when a small percentage of nitrogen was added to the plasma were conducted. Both X-ray photoelectron spectroscopy and X-ray diffraction were used to analyze the resultant coatings. Results indicate that the small partial pressure of nitrogen (approximately 0.5 percent) markedly improves the adherence, friction, and wear properties when compared with coatings applied to sputter-etched surfaces, oxidized surfaces, or in the presence of a small oxygen partial pressure. The improvements are related to the formation of an interface containing a mixture of the nitrides of titanium and iron, which are harder than their corresponding oxides.
Slow-light-based delayed quantum coherent control for all-optical information processing (2008)

We have observed delayed nondegenerate four-wave mixing processes based on slow light. The delayed observation has potential to all-optical buffered switches and routers in all- optical information processing.
Metabolism and Toxicology of Pyrethroids with Dihalovinyl Substituents (1977)

Replacement of the photolabile and biodegradable isobutenyl substituent of pyrethroids with a dihalovinyl group often leads to improved insecticidal potency and enhanced photostability. This type of structural modification does not greatly alter the ease of detoxification in mammals since other sites in the molecule undergo metabolic attack. The available toxicological information on dihalovinyl pyrethroids indicates that they are suitable replacements for other insecticides with less favorable persistence and toxicological characteristics.
Gene Therapy of the β-Hemoglobinopathies by Lentiviral Transfer of the β <sup>A(T87Q)</sup> - <i>Globin</i> Gene (2016)

β-globin gene disorders are the most prevalent inherited diseases worldwide and result from abnormal β-globin synthesis or structure. Novel therapeutic approaches are being developed in an effort to move beyond palliative management. Gene therapy, by ex vivo lentiviral transfer of a therapeutic β-globin gene derivative (β(AT87Q)-globin) to hematopoietic stem cells, driven by cis-regulatory elements that confer high, erythroid-specific expression, has been evaluated in human clinical trials over the past 8 years. β(AT87Q)-globin is used both as a strong inhibitor of HbS polymerization and as a biomarker. While long-term studies are underway in multiple centers in Europe and in the United States, proof-of-principle of efficacy and safety has already been obtained in multiple patients with β-thalassemia and sickle cell disease.
SESAM‐free mode‐locked semiconductor disk laser (2012)

Abstract Experimental demonstration of semiconductor saturable absorber‐free mode‐locked optically pumped semiconductor disk laser is presented. The origin of pulsed operation is attributed to the intensity dependent Kerr lens effect arising in the semiconductor gain medium. Achieved results represent a novel method to mode‐lock this type of laser opening new application opportunities. The laser worked stably in both hard and soft aperture configurations. No semiconductor saturable absorber was used in the laser cavity and the operation was self‐starting. The laser was mode‐locked at 210 MHz repetition rate with 1.5 W average output power and 930 fs pulse width at 985 nm. A record high 6.8 kW peak power was achieved. Measured data is presented along with a discussion of the Kerr lens effect in the cavity.
Synchronous mode locking of semiconductor laser diodes by a picosecond optoelectronic switch (1984)

Synchronous mode locking of a semiconductor diode laser and an acousto-optically mode-locked Ar+-ion laser has been obtained by using a Cr-doped GaAs picosecond optoelectronic switch for synchronous excitation. Synchronously mode-locked pulses with 30-ps duration (full width at half maximum) are generated at a repetition rate of 80.32 MHz with a buried heterostructure GaAs/GaAlAs double heterostructure laser.
IntelliCode compose: code generation using transformer (2020)

In software development through integrated development environments (IDEs), code completion is one of the most widely used features. Nevertheless, majority of integrated development environments only support completion of methods and APIs, or arguments.
Identification of a Critical Ligand Binding Determinant of the Human Erythropoietin Receptor (1996)

The erythropoietin receptor (EPOR) is a member of a family of cytokine and growth factor receptors that share conserved features in their extracellular and cytoplasmic domains. We have used site-specific mutagenesis within the extracellular domain of the EPOR to search for amino acid residues involved in erythropoietin (EPO) binding. Mutant proteins were expressed in bacteria as soluble EPO binding proteins (EBP) and characterized for EPO binding activity in a number of different assays. Substitution of phenylalanine at position 93 (Phe93) with alanine (F93A mutation) resulted in a drastic reduction in EPO binding in the EBP. More conservative tyrosine or tryptophan substitutions at Phe93 resulted in much less dramatic effects on EPO binding. Biophysical studies indicated that the F93A mutation does not result in gross structural alterations in the EBP. Furthermore, the F93A mutation in full-length EPOR expressed in COS cells abolished detectable EPO binding. This was not a result of processing or transport defects, since mutant receptor was present on the surface of the cells. Mutations in the region immediately around Phe93 and in residues homologous to other reported ligand binding determinants of the cytokine receptor family had small to moderate effects on EPO binding. These data indicate that Phe93 is a critical EPO binding determinant of the EPOR. Furthermore, since Phe93 aligns with critical ligand binding determinants in other receptors of the cytokine receptor family, these data suggest that receptors of this family may use common structural motifs to bind their cognate ligands.
Exchange Coupling Control and Thermal Endurance of Synthetic Antiferromagnet Structures for MRAM (2004)

Synthetic antiferromagnet (SAF) structures are a key element of TMR and GMR read heads and MRAM devices. Control of the SAF coupling strength and thermal endurance are key issues for these technologies. We find that the coupling strength increases with stronger crystalline texture in polycrystalline NiFe SAFs, and, surprisingly, we observe a strong dependence on seed layer in amorphous CoFeB SAFs. We also have developed an analysis method for evaluating thermal endurance of SAFs and show that failure of the SAF can be modeled as a thermally activated diffusion process. The analysis is used to predict the time to failure at any temperature, thus allowing accelerated failure analysis for SAF-based devices. The stability improves dramatically with increasing Ru spacer thickness. The time to failure for typical NiFe SAFs was found to be >10 years at 120/spl deg/C.
Understanding of fingernail-bone interaction and fingertip hemodynamics for fingernail sensor design (2005)

When the human fingertip is pressed against a surface or bent, the hemodynamic state of the fingertip is altered due to mechanical interactions between the and bone. Normal force, shear force, and finger extension/flexion all result in different patterns of blood volume beneath the fingernail. This phenomenon has been exploited in order to detect finger forces and finger posture by creating a photoplethysmograph fingernail sensor, which measures the two-dimensional pattern of blood volume beneath the fingernail. In this paper, the anatomical structure of the fingertip is investigated in order to understand the various ways in which the bone and nail interact to alter the hemodynamic state of the fingertip. A qualitative nail-bone interaction model is created and used to explain the different blood volume patterns that result from each stimulus. The model is verified using experimental data from the sensor. The impact of this study on potential performance and application of the sensors is discussed.
3D Printed Stretchable Tactile Sensors (2017)

The development of methods for the 3D printing of multifunctional devices could impact areas ranging from wearable electronics and energy harvesting devices to smart prosthetics and human-machine interfaces. Recently, the development of stretchable electronic devices has accelerated, concomitant with advances in functional materials and fabrication processes. In particular, novel strategies have been developed to enable the intimate biointegration of wearable electronic devices with human skin in ways that bypass the mechanical and thermal restrictions of traditional microfabrication technologies. Here, a multimaterial, multiscale, and multifunctional 3D printing approach is employed to fabricate 3D tactile sensors under ambient conditions conformally onto freeform surfaces. The customized sensor is demonstrated with the capabilities of detecting and differentiating human movements, including pulse monitoring and finger motions. The custom 3D printing of functional materials and devices opens new routes for the biointegration of various sensors in wearable electronics systems, and toward advanced bionic skin applications.
Redundant Toggle/Hook Release Mechanism (1991)

Release mechanism ensures reliable separation of structural members while imparting minimal impulse to members. Includes set of three hooks and pistons holding toggle and thereby clamp plate to body of mechanism. In locked position, pistons down, and hooks held against toggle. In unlocked position, pistons up. Notches in pistons let hook swivel on pivot pins. Functions even when two of its three key elements fail.
Noniterative blind data restoration by use of an extracted filter function (2002)

A signal-processing algorithm has been developed where a filter function is extracted from degraded data through mathematical operations. The filter function can then be used to restore much of the degraded content of the data through use of a deconvolution algorithm. This process can be performed without prior knowledge of the detection system, a technique known as blind deconvolution. The extraction process, designated self-deconvolving data reconstruction algorithm, has been used successfully to restore digitized photographs, digitized acoustic waveforms, and other forms of data. The process is noniterative, computationally efficient, and requires little user input. Implementation is straightforward, allowing inclusion into many types of signal-processing software and hardware. The novelty of the invention is the application of a power law and smoothing function to the degraded data in frequency space. Two methods for determining the value of the power law are discussed. The first method assumes the power law is frequency dependent. The function derived comparing the frequency spectrum of the degraded data with the spectrum of a signal with the desired frequency response. The second method assumes this function is a constant of frequency. This approach requires little knowledge of the original data or the degradation.
An Ultralow Loss Superjunction Reverse Blocking Insulated-Gate Bipolar Transistor With Shorted-Collector Trench (2016)

A novel superjunction (SJ) reverse-blocking (RB) insulated gate bipolar transistor (IGBT) is proposed and investigated for the first time. The device features a shorted collector trench (SCT) at the bottom, an SJ structure in the drift region, and an N1-layer as well as N2-layer at the bottom and top side of N-pillar, respectively. First, the SCT combined with the N2 enables the SJ RB-IGBT to sustain a high reverse breakdown voltage (BV <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">R</sub> ). The SCT assists in depleting the N1 in the reverse blocking state, enabling a high BV <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">R</sub> under the condition of a high N1 doping that is required to maintain a high forward breakdown voltage (BV <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">F</sub> ). The N2 acts as a field-stop layer in the reverse blocking state. Second, unlike the conventional SJ IGBT, the SJ RB-IGBT maintains bipolar conducting mode in the ON-state even with high N/P pillar doping of 6 × 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">15</sup> cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-3</sup> , due to carrier store effect induced by N2. Thus, a low ON-state voltage (V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ON</sub> ) is obtained. Third, the SJ junction extracts the plasma into separate pillars during turn OFF, enabling a fast turn-OFF speed that is comparable with unipolar devices. The SJ RB-IGBT realizes bidirectional blocking capability >1200V and turn-OFF loss 80% lower than that of the state-of-the-art RB-IGBT.
An efficient maximum likelihood CFO estimation scheme for MIMO-OFDM systems (2008)

In this paper, we address the estimation of carrier frequency offset (CFO) in orthogonal frequency division multiplexing (OFDM) based multiple input multiple output (MIMO) communication systems. One of the novelties of the proposed approach is the judicious combination of two methods so as to reduce the bandwidth overhead and computational complexity without compromising the CFO estimation range. Unlike many of the existing techniques, the proposed CFO estimator does not require MIMO channel estimates as a prerequisite, that are difficult to obtain in practise. It employs the cyclic prefix and a few null subcarriers respectively for the fractional and integer frequency offset estimations. We also propose a novel null subcarrier allocation scheme based on Fibonacci series. The range of frequency offset that can be estimated by the proposed technique is equal to the full OFDM bandwidth. Furthermore, performance of the proposed frequency offset estimator is mathematically analyzed by deriving the Cramer-Rao lower bound and compared it with the mean square estimation error to demonstrate its efficiency. It has been shown that our approach greatly outperform a recently published method in terms of BER performance and computational complexity.
Properties of Sintered Mg Alloys for Biomedical Applications (2011)

In addition to the use as light weight construction material, magnesium alloys are also very suitable for future orthopaedic and traumatology applications. Common permanent implant materials such as titanium or stainless steel still suffer from stress shielding problems, causing bone resorption and implant loosening. In contrast, magnesium alloys provide elastic moduli and strengths matching those of cortical bone. In order to support osseointegration and vascularisation, an open porous surface structure of an Mg-implant is advantageous. The powder metallurgical processing route of Mg-alloys enables the generation of such parts. Powder blends with different sintering behaviour were produced via mixing pure Mg-powder with different Ca containing master alloy powders (MAP). As a result, sintering of these Mg alloy powders and blends became feasible. Sintered parts were investigated in view of shrinkage, porosity, grain size using SEM, EDX and XRD. In addition, compression tests were performed revealing ultimate compression strength up to 328 MPa, plastic compressibility of 22 % and compressive yield strength up to 90 MPa. Hence, the PM-route enables the production of parts with mechanical properties matching those of cortical bone.
The role of perennial ryegrass endophyte in Italian ryegrass (2006)

Italian ryegrass (Lolium multiflorum) and short-term hybrid ryegrass (L. boucheanum) have reliable establishment and high cool season growth, but varying persistence after the first summer. In Northland, there is increased stress on ryegrass from invertebrate insect attack. Selected strains of endophyte (Neotyphodium lolii) have been identified that protect perennial ryegrass from invertebrate attack. Two of these endophyte strains (AR1 and AR37) were inoculated into two Italian ryegrass cultivars (Status and Corvette) and compared in a small plot agronomic trial with the same cultivars free or low in the naturally-occurring endophyte N. occultans. From April 2004 to June 2005, ryegrass plots with these endophyte-cultivar combinations were measured for dry matter yields and plant survival under summer/autumn insect pressure in Northland. In autumn/winter 2005, novel endophytes resulted in greater plant survival and yield advantages (82%) than the same cultivars with no/low N. occultans endophyte. These effects were consistent across cultivars. Increased agronomic performance corresponded with lower damage from African black beetle larvae (Heteronychus arator). This result has implications for extending the persistence and potential yields of Italian/hybrid ryegrass pastures subject to pest attack.
Metod och anordning för att simulera akustiska emissioner från en motor : Method for generating engine acoustic emissions in heavy vehicle, involves feeding loudspeaker configuration with signals for providing desired acoustic emissions (2009)

Metod och anordning for att simulera akustiska emissioner fran en motor : Method for generating engine acoustic emissions in heavy vehicle, involves feeding loudspeaker configuration with signals for providing desired acoustic emissions
Cascaded planar reflective gratings (2006)

Recent progress in the development of planar reflective gratings has resulted in the demonstration of multiplexers, comb filters, interleavers, power monitors, and receivers for long-haul and metro-area networks. Until recently, all of these devices were based on a single-grating architecture. We have now successfully designed, fabricated, and tested optical chips that are composed of cascaded planar reflective gratings. The chips have been realized in both additive and subtractive dispersion configurations. The versatility of cascaded gratings was utilized to produce a variety of optical responses, including single-mode transmission of wide bands (> 100 nm) with simultaneous demultiplexing of narrow optical channels with Gaussian and box-like responses. We have further demonstrated that cascaded gratings can be used to suppress optical noise and improve isolation. The devices were fabricated using a standard silica-on-silicon process with a refractive index contrast of 0.82% and have a remarkably small footprint of less than 0.3 sq. cm. We discuss the potential for tailoring of cascaded planar reflective gratings for applications in biophotonics, spectroscopy, and telecommunications.
Oxidation of silicon without the formation of stacking faults (1977)

A new technique of eliminating oxidation-induced surface stacking faults has been developed. It involves heating clean silicon wafers in an inert or HCl-inert ambient in the same furnace where subsequent oxidation—wet or dry—will be carried out. Typical fault densities after oxidation without in situ cleaning are 1000–5000 and 50–500/cm2 for n- and p-type wafers; these numbers are reduced to ∼10–100 and 0, respectively, when in situ cleaning is used.
Single-Bus Star-Connected Switched Reluctance Drive (2013)

Switched reluctance machines provide a feasible solution for automotive applications. However, a small and low cost power electronics driver is of interest for this purpose. This paper presents a control algorithm for a single-bus star-connected switched reluctance drive system. This algorithm enables the conventional Miller topology to control the phase currents in the multiphase excitation mode of operation. This control algorithm is introduced for motoring and generating modes of operation. The introduced algorithm is simulated under motoring and generating modes. Afterward, experimental measurements are illustrated to prove the practicality of the proposed concept.