gebhart/patrepeval huggingface dataset:
A hardware optimized low power RNM compensated three stage operational amplifier with embedded capacitance multiplier compensation (2016)

This paper proposes a hardware optimized low power three stage compensated operational amplifier with a capability of driving a wide range of capacitive loads ranging from 200pF to 5nF. The amplifier is compensated by implementing Embedded Capacitance Multiplier (CM) Compensation on the outer Miller capacitor of traditional Reverse Nested Miller Compensation (RNMC) with a feed forward stage. This provides a unity gain bandwidth (UGB) greater than 1MHz and phase margin greater than 60° for the range of loads mentioned above. The circuit has a 100uW of DC power dissipation for a 2V supply. The proposed technique uses two compensation capacitances of 1pf and 500fF only. The design achieves a unity gain bandwidth of 9.227MHz at 500pF capacitive load. The simulation is carried for 180nm CMOS technology in Cadence Virtuoso environment.
Dynamic restricted equilibrium model to determine statistically the resilience of a traffic network to extreme weather events (2015)

Extreme weather events lead transportation systems to critical situations, which imply high social, economical and environmental costs. Developing a tool to quantify the damage suffered by a traffic network and its capacity of response to these phenomena is essential to reduce the damage of this hazard and to improve the system. With this aim, a statistical analysis of the resilience of a traffic network under extreme climatological events is presented. The resilience of a traffic network is determined by means of a dynamic restricted equilibrium model together with a travel cost function that includes the effect of weather on a traffic network. The cost function parameters related to the hazard effect are assumed as random, following Generalized Beta distributions. Then, the fragility curves of the target traffic network are defined using the Monte Carlo method and Latin Hypercube sampling. Fragility curves are a useful tool to analyse of the vulnerability of a traffic network, assisting in the decision-making for the prevention and response to the extreme weather events.
A framework for dynamically converting components to Web services (2005)

Components are the basic building blocks of enterprise and distributed applications. Component-based development (CBD) is the technique of using a component framework to develop components and it focuses on developing large software systems by integrating previously existing software components. Software development based on component based architecture is already in wide use throughout the software industry. Component based development makes it possible to assemble an application from a repository of components developed in various languages by homogeneous or heterogeneous composition. Web services provide an easy way to extend component based development by adopting open Internet standards. Web services represent an evolution of the Web to allow the open and flexible interaction of applications over the Internet. Web services standards provide a high level of interoperability across platforms, programming languages and applications. In our current research we have created a model for automatically converting components created in different languages to Web services. The components that are developed in various languages are deployed dynamically (just in time) in the Web servers by using custom built deployers. Using this model the users can access the components that reside in the server using open Internet standards, without having to worry about the language and platform restrictions. The security aspects to access the Web services were also considered while implementing the model.
Switched-beam slot sector antenna for WLAN applications (2005)

A small sector antenna using a switched-beam slot antenna is proposed. The switched-beam slot antenna has a main beam which is tilted to the direction along the slot plane, and its beam direction is inverted by changing the phase of the slot element excitation. We present a four-sector structure whose planar size of 10/spl times/10 mm/sup 2/ at 25 GHz and is suited to the antenna for a small card terminal. For the future, we are planning to fabricate and measure the four-slot structure and investigate the main beam control in the vertical plane for further performance improvement.
Evaluation of the Efficacy of an Insecticidal Paint Based on Chlorpyrifos and Pyriproxyfen in a Microencapsulated Formulation Against <I>Rhynchophorus ferrugineus</I> (Coleoptera: Curculionidae) (2010)

The weevil Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae) is an important pest of palms. It has recently colonized the Mediterranean Basin where it is a serious problem on ornamental Phoenix canariensis (hort. ex Chabaud) palms. The efficacy of an insecticidal paint based on chlorpyrifos and pyriproxyfen in a microencapsulated formulation (Inesfly IGR FITO, Industrias Químicas Inesba S.L., Paiporta, Spain) against this weevil has been studied. Laboratory results proved that pyriproxyfen has no effect against R. ferrugineus when applied in this microencapsulated formulation. Semifield trials dismissed Inesfly IGR FITO as a curative insecticide but showed the potential of this product in the preventative control of R. ferrugineus in palms. One single application could prevent infestation for up to 6 mo with a mean efficacy of 83.3%.
Edge-guided CNN for Denoising Images from Portable Ultrasound Devices (2021)

Ultrasound is a non-invasive tool that is useful for medical diagnosis and treatment. To reduce long wait times and add convenience to patients, portable ultrasound scanning devices are becoming increasingly popular. These devices can be held in one hand, and are compatible with modern cell phones. However, the quality of ultrasound images captured from the portable scanners is relatively poor compared to standard ultrasound scanning systems in hospitals. To improve the quality of the ultrasound images obtained from portable ultrasound devices, we propose a new neural network architecture called Edge-guided Denoising Convolutional Neural Network (EDCNN), which can preserve significant edge information in ultrasound images when removing noise. We also study and compare the effectiveness of existing deep learning methods and classical filtering approaches in removing speckle noise in these images. Experimental results show that after applying the proposed EDCNN, various organs can be better recognized from ultrasound images. This approach is expected to lead to better accuracy in diagnostics in the future.
Liver transplantation from a non–heart-beating donor (2020)

Interest in utilizing organs from non-heart-beating donors (NHBDs) has increased because of the organ shortage. However, liver transplantation (LT) from NHBDs has been scarcely performed in Korea because only Maastricht category IV is legally permitted. We present one case of LT from an NHBD with extracorporeal membrane oxygenation (ECMO) support. The case was a 42-year-old male patient with alcoholic liver cirrhosis. The model for end-stage liver disease score was 28. The donor was a 47-year-old female who was diagnosed with brain death due to cerebral infarct, but cardiac arrest occurred before brain death was finally confirmed. Thus, venous-arterial type ECMO was initiated for circulatory support. In the operating room, asystole developed just after ECMO was stopped. After waiting for 5 minutes, cardiac death was declared. It took 6 minutes from skin incision to aorta perfusion. The recipient hepatectomy and graft implantation were performed according to the standard procedures of adult whole LT. The patient recovered from LT uneventfully and has been doing well for 9 years after LT. The use of NHBDs is a method to increase the potential pool of organ donors, thus changes toward enhanced public awareness and acceptance of donating organs, and legal support at the government level are necessary.
Rapid Identification of Fluorochrome Modification Sites in Proteins by LC ESI-Q-TOF Mass Spectrometry (2011)

Conjugation of either a fluorescent dye or a drug molecule to the ε-amino groups of lysine residues of proteins has many applications in biology and medicine. However, this type of conjugation produces a heterogeneous population of protein conjugates. Because conjugation of fluorochrome or drug molecule to a protein may have deleterious effects on protein function, the identification of conjugation sites is necessary. Unfortunately, the identification process can be time-consuming and laborious; therefore, there is a need to develop a rapid and reliable way to determine the conjugation sites of the fluorescent label or drug molecule. In this study, the sites of conjugation of fluorescein-5'-isothiocyanate and rhodamine-B-isothiocyanate to free amino groups on the insert-domain (I-domain) protein derived from the α-subunit of lymphocyte function-associated antigen-1 (LFA-1) were determined by electrospray ionization quadrupole time-of-flight mass spectrometry (ESI-Q-TOF MS) along with peptide mapping using trypsin digestion. A reporter fragment of the fluorochrome moiety that is generated in the collision cell of the Q-TOF without explicit MS/MS precursor selection was used to identify the conjugation site. Selected ion plots of the reporter ion readily mark modified peptides in chromatograms of the complex digest. Interrogation of theses spectra reveals a neutral loss/precursor pair that identifies the modified peptide. The results show that one to seven fluorescein molecules or one to four rhodamine molecules were attached to the lysine residue(s) of the I-domain protein. No modifications were found in the metal ion-dependent adhesion site (MIDAS), which is an important binding region of the I-domain.
Markers of renal function tests. (2010)

We conclude that further investigation is necessary to define these biomarkers in terms of usefulness in assessing renal function.
Q-compensation for High Resolution Seismic Imaging (2014)

) estimation with attenuation-compensated reverse time migration (Q-RTM). We review the approach (theory and algorithm), and present results from a field application of Q-compensated imaging using borehole seismic data. The goal of Q-compensated imaging is to restore pre-stack amplitude loss, improve signal bandwidth, and improve pre-stack balance of amplitude and phase in an effort to improve stack coherency and subsequently image resolution. To this end, we developed and tested a consistent approach for Q estimation and forward-time and reverse-time simulation for waves in constant Q media. This approach incorporates robust and practical algorithms for Q-compensated imaging. The approach is tested on a crosswell field dataset from west Texas, USA where improved spatial resolution and improved spatial continuity can be observed in the Q-compensated image.
NMR-detected hydrogen exchange and molecular dynamics simulations provide structural insight into fibril formation of prion protein fragment 106–126 (2003)

PrP106-126, a peptide corresponding to residues 107-127 of the human prion protein, induces neuronal cell death by apoptosis and causes proliferation and hypertrophy of glia, reproducing the main neuropathological features of prion-related transmissible spongiform encephalopathies, such as bovine spongiform encephalopathy and Creutzfeldt-Jakob disease. Although PrP106-126 has been shown to form amyloid-like fibrils in vitro, their structural properties have not been elucidated. Here, we investigate the conformational characteristics of a fibril-forming fragment of the mouse prion protein, MoPrP106-126, by using electron microscopy, CD spectroscopy, NMR-detected hydrogen-deuterium exchange measurements, and molecular dynamics simulations. The fibrils contain approximately 50% beta-sheet structure, and strong amide exchange protection is limited to the central portion of the peptide spanning the palindromic sequence VAGAAAAGAV. Molecular dynamics simulations indicate that MoPrP106-126 in water assumes a stable structure consisting of two four-stranded parallel beta-sheets that are tightly packed against each other by methyl-methyl interactions. Fibril formation involving polyalanine stacking is consistent with the experimental observations.
Enhanced piezoelectricity in YbGaN films near phase boundary (2014)

Weak piezoelectricity in GaN is a problem in bulk acoustic wave filters and heterostructure field-effect transistors. In this study, enhancement of piezoelectricity in c-axis direction by substituting Yb for Ga was experimentally demonstrated. Thickness extensional mode electromechanical coupling coefficient kt for the YbxGa1−xN films increases with the Yb concentration from x = 0 to 0.3. Yb0.30Ga0.70N film near the phase boundary exhibited a maximum kt of 3.1%, which is approximately 2.5 times larger than that for a pure GaN.
Detection and Analysis of Somatic Mutations at a lacZ Reporter Locus in Higher Organisms (2007)

Methods to detect and analyze somatic mutations in higher organisms are critically important in view of their causal role in cancer, heritable diseases, and, possibly, aging. Here, we describe detailed protocols for the use of a mutational reporter system based on lacZ-containing plasmids integrated in the germline of Mus musculus and Drosophila melanogaster. Plasmids containing the bacterial lacZ gene integrated at one or more chromosomal sites can be excised, purified and recovered in suitable Escherichia coli hosts allowing the positive selection of mutant lacZ genes and their further molecular characterization. This system is capable of detecting a broad range of mutational events, varying from small mutations in the lacZ reporter gene to large genome rearrangements with one breakpoint in lacZ and the other breakpoint elsewhere in the genome.
Vision and laser sensor data fusion technique for target approaching by outdoor mobile robot (2010)

The authors have been developing an outdoor mobile robot intended to provide increased traveling distance by autonomously negotiating and crossing a road crossing intersection while traveling along pedestrian sidewalks in an urban environment. In this paper, high precision navigation towards a pedestrian push-button box by a mobile robot for the autonomous activation of the button is presented. We show a dual sensor fusion technique using a monocular camera and laser range sensor with which an outdoor mobile robot can detect, localize and then accurately navigate towards a button box so that it could autonomously press the pedestrian push button in order to trigger the crossing sequence. The method involves determining the image formation of the target on the image sensor of the camera, using it to estimate the object position in the real world and then using data from the laser range sensor to acquire a precise location of the object relative to the robot and finally perform the path planning. A two-tiered validation system, one at the vision level and the second at the laser scan data level, detects inaccurate detections and results in a robust system. The proposed method is also applicable for any form of target approaching. Experimental results verify the efficacy of the system and concluding remarks are also given.
Forage Yield Heterosis in Alfalfa (2002)

Increasing forage yields remains a top priority of most alfalfa ( Medicago sativa L.) breeding programs, but yield trends suggest yield has stagnated over the past two decades. Little effort has been invested into capturing heterosis in alfalfa, but semihybrid breeding systems are a possible solutions to overcome forage yield stagnation. Development of alfalfa semihybrids will require identification of heterotic groups. Studies of crosses between dormant M. sativa ssp. sativa and M. sativa ssp. falcata suggest a heterotic pattern exists between the two subspecies. The objective of this study was to measure heterosis in elite sativa × falcata crosses (SFC) in relation to elite sativa × sativa crosses (SSC) and falcata × falcata crosses (FFC). Nine elite sativa clones and five falcata clones were crossed in a diallel mating design. Progeny were space planted in 1998 at Ames and Nashua, IA, and harvested for forage yield twice in 1998 and three times in 1999. A definite sativa–falcata heterotic pattern was observed. Sativa–falcata heterosis was observed at the subspecies, halfsib, and individual cross level calculated using subspecies comparisons, halfsib heterosis analysis, and combining ability analysis. On average, intersubspecific crosses yielded 18% more than the average of intrasubspecific crosses. The sativa–falcata heterotic pattern is a potentially useful resource in alfalfa breeding programs.
Analysis of short defects in FinFET based logic cells (2017)

FinFET technology has become the most promising semiconductor technology alternative to CMOS planar at highly scaled nodes (e.g. below 20nm). FinFET technology offers higher performance with lower leakage thanks to a better channel control obtained by wrapping a metal gate around a thin fin. In this paper, bridge defects in FinFET based logic cells are investigated. The impact of the use of Middle-Of-Line (MOL) interconnections and multi-fin and multi-finger devices pose a challenge on the detection of bridge defects. They influence the likelihood of occurrence of these defects, and make them more difficult to detect than in CMOS planar technology. Even more some defects unlikely to appear in planar CMOS now become more likely to occur. A metric called Bridge Defect Criticality (BDC) is used to identify the most critical bridge defects. Actions may be taken over these defects to increase their fault tolerance or testability.
Analysis, Modeling, and Design of a 2.45-GHz RF Energy Harvester for SWIPT IoT Smart Sensors (2019)

Simultaneous wireless information and power transfer (SWIPT) is a flexible and cheap way to supply Internetof-Things (IoT) smart sensors avoiding battery replacement. In this paper, we analyze, model, and design a 2.45-GHz RF energy harvesting (RFEH) system based on a discrete-component matching network (MN), a custom 65-nm CMOS cross-coupled rectifier, and an off-the-shelf storage-charging power management unit (PMU), which regulates the rectifier output voltage with maximum power point tracking (MPPT). We propose a reverse global analysis to model the RFEH. It allows an accurate prediction of the power harvesting efficiency (PHE) to directly size the MN and select the RFEH MPPT regulation ratio, at different incident RF power levels. We perform parasitic-aware RFEH design to take advantage of printed circuit board (PCB)/package capacitive parasitics at the rectifier input for optimizing the π-MN with the help of the proposed RFEH modeling results. We show that this parasitic capacitance introduces a maximum bound on the real impedance at the rectifier input to ensure good impedance matching in practice. MPPT is used to help reach this target real impedance at given incident RF power, as the rectifier equivalent input impedance is a function of both its input and output voltages. Measurement results show a sensitivity as low as -17.1 dBm with a peak PHE of 48.3% at -3-dBm incident RF power. Global modeling, simulation, and measurement results demonstrate that the PHE is limited by PCB/package parasitic capacitance and that PCB/packaging technology improvement to reduce parasitic capacitance by 150 fF could boost the PHE up to 45% for a low incident RF power level of -10 dBm.
Multifunctional two-stage riser fluid catalytic cracking process (2014)

This paper described the discovering process of some shortcomings of the conventional fluid catalytic cracking (FCC) process and the proposed two-stage riser (TSR) FCC process for decreasing dry gas and coke yields and increasing light oil yield, which has been successfully applied in 12 industrial units. Furthermore, the multifunctional two-stage riser (MFT) FCC process proposed on the basis of the TSR FCC process was described, which were carried out by the optimization of reaction conditions for fresh feedstock and cycle oil catalytic cracking, respectively, by the coupling of cycle oil cracking and light FCC naphtha upgrading processes in the second-stage riser, and the specially designed reactor for further reducing the olefin content of gasoline. The pilot test showed that it can further improve the product quality, increase the diesel yield, and enhance the conversion of heavy oil.
Thrombin-mediated release of factor VIII antigen from human umbilical vein endothelial cells in culture (1982)

We have examined the effects of purified human alpha-thrombin on factor VIII antigen (FVIII-Ag) release by human umbilical vein endothelial cells in culture. Alpha-thrombin induced a time and dose-dependent release of FVIII-Ag into supernatant medium. Alpha-thrombin-mediated FVIII-Ag release was not dependent on protein synthesis and was observed in both serum-free and serum-containing media. FVIII-Ag release, however, was prevented when the serine esterase activity of thrombin was inhibited. Pretreatment of human endothelial cells with alpha-thrombin, but not diisofluorophosphate-thrombin, prevented subsequent FVIII-Ag release by alpha-thrombin. Thrombin-mediated FVII- Ag release was not associated with significant 51Cr release from prelabeled endothelial monolayers. We conclude that alpha-thrombin induces release of preformed FVIII-Ag from human umbilical vein endothelial cells by a receptor-independent, nonlytic mechanism requiring serine esterase activity.
Order Independent Transparency with Dual Depth Peeling (2008)

Rendering semi-transparent surfaces correctly using the alpha blending equation requires sorting fragments from front to back or back to front. Depth peeling is a robust solution to the fragment sorting problem which renders the transparent objects multiple times, peeling one layer of fragments every time. We introduce dual depth peeling, an extension of depth peeling based on a min-max depth buffer which peels two layers at a time, one layer from the front and one from the back. Alpha blending is interleaved with dual depth peeling, using different blend equations for front peeling and back peeling. The algorithm guarantees that no fragments can be blended twice. We implement our min-max depth buffer using 32bit floating-point blending, which is fast on GeForce 8. We also describe a sort-independent method which replaces the RGBA color in the alpha blending equation by the per-pixel weighted average over the pixel, using alpha values as weights. This approximate method can render plausible order independent transparency with a single geometry pass. Figure 1. Dual depth peeling peels 4 color layers in 2 geometry passes. Image rendered with alpha=60%.
Nonlinear System Identification Scheme for Efficient Compensators Design (2019)

Opto-electronic transmitters such as vertical-cavity surface-emitting lasers (VCSELs) may include nonlinear dis-tortions combined with memory effect. Using a system model identification scheme based on Volterra series, enables distortions root cause identification and design of efficient compensators to mitigate these effects. Extraction of the memory depth of the linear and nonlinear effects enables low cost and efficient digital pre-distortion (DPD) design, based on the combination of a “long” linear finite impulse response (FIR) filter and a “short” look-up-table (LUT) that mitigates the nonlinear distortion part. VCSEL-based lab experiments are performed, which demonstrate an efficient DPD of X-taps FIR followed by a LUT which pre-distorts only the most significant nonlinear terms associated with memory depth of 3.