gebhart/patrepeval huggingface dataset:
Physically-consistent sensor fusion in contact-rich behaviors (2014)

We describe an accurate approach to state estimation which fuses any available sensor data with physical consistency priors. This is done by combining the advantages of recursive estimation and fixed-lag smoothing: at each step we re-estimate the trajectory over a time window into the past, but also use a recursive prior obtained from the previous time step via internal simulation. We also incorporate a physics engine into the estimator, which makes it possible to adjust the state estimates so that the inferred contact interactions are consistent with the observed accelerations. The estimator can utilize contact sensors to improve accuracy, but even in the absence of such sensors it reasons correctly about contact forces. Estimation speed and accuracy are demonstrated on a 28-DOF humanoid robot (Darwin) in a walking task. Timing tests and leave-one-out cross-validation show that the proposed approach can be used in real-time and is substantially more accurate than the EKF, without any over-fitting. A video of our results is attached.
A discussion on hysteresis nature of member force developed in box type in-ground structures during earthquakes based on numerical simulation (2004)

The present paper discusses the characteristic of hysteresis of member force developed in box type in-ground structures during the 1995 Great Hanshin earthquake, based on numerical simulation. Several case studies including different type structures are carried out using appropriate ground motions for the specific site. In this calculation, dynamic interaction between soil and structure, elasto-plastic behavior, etc, are considered. As a result, the hysteresis of member force of structures, interactive relationship between bending moment and axial force, is expressed as a simple moment-axial force ratio.
In-vitro Antifungal Activity of Three Selected Pakistani Medicinal Plants (2012)

In the present investigation three Pakistani medicinal plants were studied for their Antifungal potentials. The antifungal activity of these medicinal plants was determined by tube dilution method. Among the entire fraction hexane fraction shows remarkable inhibition zone in the range of 40-60 mm. while chloroform and ethyl acetate also show good inhibition as compared to ethanol fraction. Thus a lead hit can be discovered by further phytochemical investigation on these medicinal plants.
Adaptive narrowband interference rejection in DS-CDMA systems: a scheme of parallel interference cancellers (2001)

In the presence of narrowband interference (NBI), the performance of the direct-sequence code-division multiple access communication system can be improved by using various interference cancellation schemes. In this paper, a scheme of parallel interference cancellers (PICs), which includes a set of NBI cancellation filters and a set of multiple access interference (MAI) cancellation filters, is developed to improve the signal-to-interference ratio (SIR) and handle the MAI effect. In order to avoid performance deterioration due to unreliable initial detection, a robust coefficient /spl gamma/ is introduced in our proposed design criterion. A recursive least-square algorithm is employed to update the tap coefficients of the PICs. In other words, no training or retraining period is needed in our proposed PICs. Finally, the SIR performance of the proposed detector is analyzed and compared to that of the conventional linear detector.
Use of ABS in Emergency Brake-and-Steer Maneuvers (2009)

&lt;div class="htmlview paragraph"&gt;We employ theoretical and experimental means to examine driver control strategies for use in emergency brake-and-steer maneuvers using ABS-equipped vehicles, and show that the admonition to simply “stand on the brakes” does not necessarily produce the desired vehicle response because the full maneuver envelope of the vehicle is not utilized. Rather, judicious use of vehicle braking in its non-ABS mode is preferred for portions of some maneuvers where maximum lateral control is desired.&lt;/div&gt;
Quantitative Electrode Design Modeling of an Electroadhesive Lifting Device Based on the Localized Charge Distribution and Interfacial Polarization of Different Objects (2019)

Electroadhesive devices can lift materials of different shapes and various types using the electrostatic force developed at the interface between the device and the object. More specifically, the electrical potential generated by the device induces opposite charges on the object to give electrostatic Maxwell force. Although this technology has a great deal of potential, the key design factors based on the fundamental principles of interfacial polarization have yet to be clearly identified. In this study, we identify that the lifting force is quantitatively related to the total length of the boundary edges of the electrodes, where the induced charges are selectively concentrated. We subsequently propose a model equation that can predict the electrostatic lifting forces for different object materials as a function of the applied voltage, impedance, and electrode-boundary length. The model is based on the fact that the amount of induced charges should be concentrated where the equipotential field distance is minimal. We report that the impedance magnitude is correlated with the electroadhesive lifting forces by analyzing the impedance characteristics of objects made of different materials (e.g., paper, glass, or metal), as attached in situ to the electroadhesive device.
Optimal architecture for diamond-based wide-field thermal imaging (2020)

Nitrogen-Vacancy centers in diamond possess an electronic spin resonance that strongly depends on temperature, which makes them efficient temperature sensor with a sensitivity down to a few mK/$\sqrt{\rm Hz}$. However, the high thermal conductivity of the host diamond may strongly damp any temperature variations, leading to invasive measurements when probing local temperature distributions. In view of determining possible and optimal configurations for diamond-based wide-field thermal imaging, we here investigate, both experimentally and numerically, the effect of the presence of diamond on microscale temperature distributions. Three geometrical configurations are studied: a bulk diamond substrate, a thin diamond layer bonded on quartz and diamond nanoparticles dispersed on quartz. We show that the use of bulk diamond substrates for thermal imaging is highly invasive, in the sense that it prevents any substantial temperature increase. Conversely, thin diamond layers partly solve this issue and could provide a possible alternative for microscale thermal imaging. Dispersions of diamond nanoparticles throughout the sample appear as the most relevant approach as they do not affect the temperature distribution, although NV centers in nanodiamonds yield lower temperature sensitivities compared to bulk diamond.
Realization of a Monolithic High-Reflectivity Cavity Mirror from a Single Silicon Crystal (2010)

We report on the first experimental realization of a high-reflectivity cavity mirror that solely consists of a single silicon crystal. Since no material was added to the crystal, the urgent problem of "coating thermal noise" that currently limits classical as well as quantum measurements is avoided. Our mirror is based on a surface nanostructure that creates a resonant surface waveguide. In full agreement with a rigorous model we realized a reflectivity of (99.79+/-0.01)% at a wavelength of 1.55 microm, and achieved a cavity finesse of 2784. We anticipate that our achievement will open the avenue to next generation high-precision experiments targeting fundamental questions of physics.
Fast estimation of weight vectors to optimize multi-transmitter broadcast channel capacity (1998)

We improve capacity of broadcast channels by employing multiple transmitters and exploiting the spatial diversity among the users. We derive fast algorithms to compute orthogonal, near-optimal, and optimal weight vectors for broadcasting message signals to two and three users. The key innovation is that we decouple the weight vectors in the measure of channel capacity to (1) simplify the optimization problem to a search for the maxima of a smooth multidimensional function and (2) derive closed-form expressions for the orthogonal and near-optimal algorithms.
A molecular receptor selective for zwitterionic alanine (2016)

A new chiral chromane receptor has been synthesized with a right-sized oxyanion hole to fix zwitterionic alanine. This associate allows the enantioselective extraction of this amino acid from water to chloroform.
Late Epstein-Barr virus infection of a hepatosplenic gamma delta T-cell lymphoma arising in a kidney transplant recipient. (2000)

It is concluded that EBV infection was as a late event involving an already transformed gd T-cell clone.
Signal Integrity Analysis of BMC Assisted Remote Debug Solution (2018)

In the 1980s, multi-layer circuit boards and non-lead-frame integrated circuits (ICs) were becoming standard and connections were being made between ICs that were not available to probes. The majority of manufacturing and field faults in circuit boards were due to poor solder joints on the boards, imperfections among board connections, or the bonds and bond wires from IC pads to pin lead frames. The Joint Test Action Group (JTAG) was formed in 1985 to provide a pins-out view from one IC pad to another so these faults could be discovered [1] [2].Nowadays, Intel server platforms provide two primary paths for debug - One is Intel In-Target Probe (Intel <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">®</sup> ITP) via on board eXtended Debug Port (XDP) and JTAG path for debug. The other is USB 3.0 hosted Direct Connect Interface (DCI) for closed chassis debug. Software developers and system level debuggers use either path to access internal resources and events to triage failures. But both approaches require close proximity to the failing server as the debug host with necessary software needs to be physically connected. Both ways are time-consuming and expensive for OEMs/ODMs engineers to debug a failing system once the system is far away from their company. To solve this problem and reduce debug time and cost, BMC Assisted Remote Debug Solution is proposed as a new choice.
Substantial photo-response of InGaN p–i–n homojunction solar cells (2009)

InGaN p–i–n homojunction structures were grown by metal-organic chemical vapor deposition, and solar cells with different p-contact schemes were fabricated. X-ray diffraction measurements demonstrated that the epitaxial layers have a high crystalline quality. Solar cells with semitransparent p-contact exhibited a fill factor (FF) of 69.4%, an open-circuit voltage (Voc) of 2.24 V and an external quantum efficiency (EQE) of 41.0%. On the other hand, devices with grid p-contact showed the corresponding values of 57.6%, 2.36 V, 47.9% and a higher power density. These results indicate that significant photo-responses can be achieved in InGaN p–i–n solar cells.
Lead Optimization of Melanin Concentrating Hormone Receptor 1 Antagonists with low hERG Channel Activity (2008)

The discovery of small molecule melanin concentrating hormone receptor (MHCr1) antagonists as novel therapeutic agents has been widely pursued across the pharmaceutical industry. While multiple chemotypes of small molecule MCHr1 antagonists have been identified and shown to induce weight loss in rodent models of obesity, many of these lead compounds have been found to cross react with the hERG channel. This review describes efforts that led to the identification of two sub-series of MCHr1 antagonists with low affinity for the hERG channel. Ultimately, however, the modifications introduced to thwart hERG channel activity resulted in lead compounds with sub-optimal CNS behavior.
Hyperspectral Image Spatial Super-Resolution via 3D Full Convolutional Neural Network (2017)

Hyperspectral images are well-known for their fine spectral resolution to discriminate different materials. However, their spatial resolution is relatively low due to the trade-off in imaging sensor technologies, resulting in limitations in their applications. Inspired by recent achievements in convolutional neural network (CNN) based super-resolution (SR) for natural images, a novel three-dimensional full CNN (3D-FCNN) is constructed for spatial SR of hyperspectral images in this paper. Specifically, 3D convolution is used to exploit both the spatial context of neighboring pixels and spectral correlation of neighboring bands, such that spectral distortion when directly applying traditional CNN based SR algorithms to hyperspectral images in band-wise manners is alleviated. Furthermore, a sensor-specific mode is designed for the proposed 3D-FCNN such that none of the samples from the target scene are required for training. Fine-tuning by a small number of training samples from the target scene can further improve the performance of such a sensor-specific method. Extensive experimental results on four benchmark datasets from two well-known hyperspectral sensors, namely hyperspectral digital imagery collection experiment (HYDICE) and reflective optics system imaging spectrometer (ROSIS) sensors, demonstrate that our proposed 3D-FCNN outperforms several existing SR methods by ensuring higher quality both in reconstruction and spectral fidelity.
Evidence for a Synergistic Effect of Calcium Channel Blockers With Lipid-Lowering Therapy in Retarding Progression of Coronary Atherosclerosis in Symptomatic Patients With Normal to Moderately Raised Cholesterol Levels (1996)

To date, lipid-lowering therapy appears to be the most effective medical intervention to retard progression of coronary atherosclerosis. In spite of promising experimental results, clinical trials completed so far have failed to demonstrate that calcium channel blockers (CCBs) alone influence the evolution of established coronary atherosclerosis. To assess whether the two therapies may have an additive or synergistic beneficial effect on human atherosclerosis, we reviewed in this regard the data of the angiographic Regression Growth Evaluation Statin Study (REGRESS) trial. REGRESS was designed to determine the effect of lipid-lowering therapy with pravastatin in symptomatic patients with normal to moderately raised cholesterol levels. Angiographically, with respect to the minimum obstruction diameter, in the pravastatin group, patients had on average 0.05 mm (95% confidence interval [CI]: 0.01-0.09) less progression if cotreated with CCBs compared with no CCB treatment, whereas in the placebo (no pravastatin) group, no effect of CCB treatment was observed (interaction test for differential effect of CCB treatment in patients with pravastatin compared with patients receiving placebo: P=.0016). With respect to the mean segment diameter, similar although not significant (P=.33) results were found. With respect to new lesion formation, in the pravastatin group, there were 50% (CI: 25-83) fewer patients with new angiographic lesions if cotreated with CCBs compared with no CCB cotreatment, whereas in the placebo (no pravastatin) group, no significant effect of CCB treatment was observed (interaction test: P=.0026). No beneficial effects of CCB treatment on clinical events were observed. Although the REGRESS trial was not designed to evaluate combination therapy, the results suggest strongly that addition of CCBs to 3-hydroxy-3-methyl-glutaryl-coenzyme reductase inhibitor therapy (pravastatin) acts synergistically in retarding the progression of established coronary atherosclerosis.
Geometric reasoning for single image structure recovery (2009)

We study the problem of generating plausible interpretations of a scene from a collection of line segments automatically extracted from a single indoor image. We show that we can recognize the three dimensional structure of the interior of a building, even in the presence of occluding objects. Several physically valid structure hypotheses are proposed by geometric reasoning and verified to find the best fitting model to line segments, which is then converted to a full 3D model. Our experiments demonstrate that our structure recovery from line segments is comparable with methods using full image appearance. Our approach shows how a set of rules describing geometric constraints between groups of segments can be used to prune scene interpretation hypotheses and to generate the most plausible interpretation.
The Elements of Life (2019)

Here we describe the function of essential elements in biology and discuss about various aspects of these elements in human life as well as in bacteria and plants. The article highlights the importance of 28 essential elements in life from both chemical and biological perspective and their role in enzyme functions and several other biological pathways. Although the journey through periodic table illustrates the specific functions of a few elements, there may be other elements whose functions in living systems are poorly understood. Many drug molecules and metal-complexes have been discovered in the recent past for diagnosis and therapeutic purpose, which also highlight the importance of metal ions and synergistic functions of elements in human and other organisms.
Prevalence, Consequences, and Solutions (2007)

Since the early development of antibiotics, antimicrobial resistance has continued to emerge as a formidable adversary in the fight against infectious disease. Once an issue confined to hospitals, antibiotic resistance has now invaded communities, targeting not only the immunocompromised patient, but also those who are immunocompetent. To stem this crisis, researchers have developed more powerful and more costly antibiotics, which have only complicated the resistance problem. Education of the patient and the prescriber, as well as antimicrobial stewardship programs, are necessary to avert a global antibiotic resistance catastrophe.
Axon-Tracing Properties of Indocyanine Green (2003)

The present results suggest that in humans, epiretinal application of ICG results in prolonged staining of the visual pathway. Therefore, additional studies of long-term toxic effects of ICG on neural cells are warranted before recommending its use in humans as an intraoperative tool for vitreoretinal surgery.
Towards High Throughput Structuring of Liquid Foams in Microchannels: Effect of Geometry, Flowrate and Formulation (2021)

This work is part of a study aiming to design a high-throughput foaming microsystem. The main focused field of application is the food industry. With the objective of improving the design of the microdevice, the effects of the geometry and the nature of the liquid base are presently investigated through visualizations of the flow typology of bubbles trains, aiming to expand the knowledge on key parameters that lead to an improved gas breakup. The tested set of conditions is not encountered in traditional microfluidics systems: i.e., throughputs up to 19 L·h<sup>-1</sup> for the liquid phase, process velocities around 20 m·s<sup>-1</sup> and flow of complex fluids. The behavior of solutions based on xanthan gum (XG) and whey proteins (WPI) is compared to that of solutions containing one of these ingredients or other ones (caseinates, glycerol). The structural and end-used properties of the final foams, namely the bubble diameter and rheological behavior, are evaluated. The incorporation of XG induces bubble shape stabilization even at the highest shear rates (~10<sup>5</sup> s<sup>-1</sup>) encountered in the mixing channel. "Controlled" interfacial breakup by tip-streaming or binary breakup are only observed with the WPI/XG biopolymers. This study indubitably highlights the essential role of the process/formulation interaction in the development of structural and functional properties of food foams when using microfluidics at high throughput.
Using Storage Class Memory for Archives with {DAWN}, a Durable Array of Wimpy Nodes (2011)

The long life and low usage of archival data make cost considerations paramount. Today, most archival storage architectures depend on magnetic or optical media such as tape and disk because they have a low initial cost per byte. The high initial cost of storage class memories (SCMs) has been seen as prohibitive for archival use. Nevertheless, SCMs have many advantages for archival use, including physical robustness and low power usage. In this work, we argue that a suitable architecture can exploit these advantages to make SCM competitive with magnetic media for archival use. Inspired by the FAWN and Pergamum systems, we outline the design of DAWN, a Durable Array of Wimpy Nodes. DAWN will make use of low-power system-on-chip technology paired with SCM to provide a simple, reliable, self-managing archival storage system with a low total cost of operation.
Enzyme-catalyzed positional isotope exchange by phosphorus-31 nuclear magnetic resonance spectroscopy using either oxygen-18- or oxygen-17-.beta.,.gamma.-bridge-labeled adenosine 5'-triphosphate (1983)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEnzyme-catalyzed positional isotope exchange by phosphorus-31 nuclear magnetic resonance spectroscopy using either oxygen-18- or oxygen-17-.beta.,.gamma.-bridge-labeled adenosine 5'-triphosphateMark A. Reynolds, Norman J. Oppenheimer, and George L. KenyonCite this: J. Am. Chem. Soc. 1983, 105, 22, 6663–6667Publication Date (Print):October 1, 1983Publication History Published online1 May 2002Published inissue 1 October 1983https://pubs.acs.org/doi/10.1021/ja00360a020https://doi.org/10.1021/ja00360a020research-articleACS PublicationsRequest reuse permissionsArticle Views143Altmetric-Citations11LEARN 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
60W L-band power AlGaAs/GaAs heterostructure FETs (2002)

This paper describes DC and RF power performance of a newly-developed high-power AlGaAs/GaAs heterostructure FET (HFET) designed for L-band SSPA applications. A push-pull power amplifier, composed of two HFET chips, demonstrated state-of-the-art power performance of 60 W output-power with a power-added efficiency (PAE) of 54% at 1.5 GHz.