gebhart/patrepeval huggingface dataset:
Object discrimination based on a swarm of agents (2023)

A configuration system for identifying a target configuration of agents for acquiring data is provided. In some embodiments, the configuration system generates sample configurations, each of which has a location within the space for each agent. The configuration system selects as the target configuration a sample configuration that is suitable to acquire data. The configuration system selects the target configuration by, for at least one or more sample configurations, directing that the agents assume the sample configuration and then acquire data when in the sample configuration. The configuration system then stores, for each sample configuration, an indication of suitability for acquiring data based on the sample configuration. The configuration system selects a sample configuration that is deemed to be suitable as the target configuration.
A Simplified Sensorless Vector Control Based on Average DC Bus Current for Fan Motor (2010)

This paper describes a simplified sensorless vector control based on the average DC bus current for PMSM. This method can be used to design a drive control system at a relatively low cost because the microcontroller does not require a precise timer and the calculation load is slight. In the proposed method, one of the two possible current estimation processes is chosen according to the operation mode. First, the controller estimates d-axis current and identifies the back-EMF parameter in the synchronous operation mode at low speeds. The error in the back-EMF identification affects the efficiency of the proposed system, so it needs to be zero. Second, the controller estimates q-axis current in vector control mode. The identified parameter and q-axis current define voltage reference to realize high efficiency drive. The obtained experimental results confirm the effectiveness of the proposed method.
Improved Psychoacoustic Model for Efficient Perceptual Audio Codecs (2018)

Since early perceptual audio coders such as mp3, the underlying psychoacoustic model that controls the encoding process has not undergone many dramatic changes. Meanwhile, modern audio coders have been equipped with semi-parametric or parametric coding tools such as audio bandwidth extension. Thereby, the initial psychoacoustic model used in a perceptual coder, just considering added quantization noise, became partly unsuitable. We propose the use of an improved psychoacoustic excitation model based on an existing model proposed by Dau et al. in 1997. This modulation-based model is essentially independent from the input waveform by calculating an internal auditory representation. Using the example of MPEG-H 3D Audio and its semi-parametric Intelligent Gap Filling (IGF) tool, we demonstrate that we can successfully control the IGF parameter selection process to achieve overall improved perceptual quality.
A Blocker Filtering Technique for Wireless Receivers (2007)

A filtering technique to remove out-of-band blockers in wireless receivers is presented. The circuit employs a feedforward filtering path to produce an arbitrarily narrow frequency response in the LNA, relaxing mixer linearity requirements. A prototype amplifier is implemented in a 65nm CMOS process. A stop-band rejection of over 21 dB is achieved.
Prioritization schemes for reference and command governors (2013)

Reference and command governors are predictive add-on schemes that are applied to closed-loop systems and guarantee constraint enforcement while tracking desired reference inputs. This paper introduces two methods for using these predictive methods in the presence of prioritized constraints. The first method handles the case of “soft” constraints by using a slack variable to relax the constraints. The second method prioritizes the reference inputs, enforcing the constraints by modifying the lower priority reference inputs first. Two examples are reported consisting of a constrained spring-mass-damper system and an F-16 aircraft with actuator constraints.
Highly Efficient Multimode RF Transmitter Using the Hybrid Quadrature Polar Modulation Scheme (2006)

This research first presents a hybrid quadrature polar modulator to drive the power amplifier (PA) highly efficiently in a wireless RF transmitter required for multi-mode operation. The proposed modulator consists of a quadrature modulator for processing the RF modulated carrier and a class-S modulator for processing the envelope signal. Since both quadrature and class-S modulators deliver signals with envelope variation, the double amplitude modulation distorts the RF modulated signal at the PA output. Therefore, a digital predistorter is required in front of the hybrid quadrature polar modulator for compensation. The use of such predistorted drive signals can help reducing the average DC and input RF drive powers and the output feed-through levels so as to enhance the power added efficiency and adjacent channel power rejection remarkably
Efficient Source of Indistinguishable Single-Photons based on Phonon-Assisted Excitation (2020)

Semiconductor quantum dots in cavities are high-performance single-photon sources. Thus far the most efficient sources utilise resonant excitation of an unpolarized quantum emitter coupled to a highly birefringent cavity. However, this demands very high polarization extinction, and challenging experimental operation. Here, we remove these requirements by using off-resonant phonon-assisted excitation of a linear exciton dipole, exploiting the quantum dot's vibrational environment and natural asymmetry. This allows the collection of single photons that are spectrally separated from the excitation laser, and intrinsically present a very high degree of linear polarization up to 0.994 $\pm$ 0.007. This phonon-assisted excitation scheme enables very high single-photon purity and indistinguishability, and only reduces the emitter population by (15 $\pm$ 1) %, as compared to resonant excitation. Overall, we simultaneously demonstrate a polarized first lens brightness of 0.51 $\pm $ 0.01, with a single-photon purity of 0.939 $\pm$ 0.001 and corrected single-photon indistinguishability of 0.915 $\pm$ 0.003.
Eye of the Beholder: Improved Relation Generalization for Text-based Reinforcement Learning Agents (2021)

Text-based games (TBGs) have become a popular proving ground for the demonstration of learning-based agents that make decisions in quasi real-world settings. The crux of the problem for a reinforcement learning agent in such TBGs is identifying the objects in the world, and those objects' relations with that world. While the recent use of text-based resources for increasing an agent's knowledge and improving its generalization have shown promise, we posit in this paper that there is much yet to be learned from visual representations of these same worlds. Specifically, we propose to retrieve images that represent specific instances of text observations from the world and train our agents on such images. This improves the agent's overall understanding of the game 'scene' and objects' relationships to the world around them, and the variety of visual representations on offer allow the agent to generate a better generalization of a relationship. We show that incorporating such images improves the performance of agents in various TBG settings.
Using Paper-Based Diagnostics with High School Students To Model Forensic Investigation and Colorimetric Analysis (2013)

Emerging paper-based diagnostics is an inexpensive yet elegant approach to medical diagnostics and environmental testing in resource-poor regions of the world. Wicking by capillary action distributes a small drop of sample to reagent or assay zones without the need for pumps, refrigeration, or electricity. The advantages of using paper for medical diagnostics (low expense, availability, portability, easy disposal) also apply to the classroom. This article describes a two-session high school activity that employs a paper device to solve a crime scene mystery. On the first day, students role-play either suspects or a detective and make inferences to predict the guilty party. In the second session, students perform presumptive, paper-based forensic testing of “unknown” liquids retrieved from the suspects’ homes and compare these findings with their predictions. The primary goals of this exercise are to demonstrate the similarities between forensic investigation and scientific inquiry and to introduce students to presumptive colorimetric analysis and to the promise of paper-based diagnostics and testing.
Analysis of the plastic substrates, the reflective layers, and the adhesives of today's archival-grade DVDs (2010)

The plastic substrates, reflective layers, dyes, and adhesives of four archival-grade DVDs and one standard-grade recordable DVD were analyzed to determine their chemical compositions and/or physical dimensions. Chemical analyses by ATR-FTIR, ToF-SIMS, XPS and EDX/STEM show that all these DVDs use very similar polycarbonate plastic substrates and acrylate-based adhesives, but different reflective layers and dye write layers. In addition, physical measurements by AFM show differences in the DVD groove depth, width, and other dimensions. These chemical and physical analyses may help explain variations in DVD lifetimes and facilitate development of the next generation of archival-grade DVDs.
Lightweight Multilingual Software Analysis (2018)

Developer preferences, language capabilities and the persistence of older languages contribute to the trend that large software codebases are often multilingual, that is, written in more than one computer language. While developers can leverage monolingual software development tools to build software components, companies are faced with the problem of managing the resultant large, multilingual codebases to address issues with security, efficiency, and quality metrics. The key challenge is to address the opaque nature of the language interoperability interface: one language calling procedures in a second (which may call a third, or even back to the first), resulting in a potentially tangled, inefficient and insecure codebase. An architecture is proposed for lightweight static analysis of large multilingual codebases: the MLSA architecture. Its modular and table-oriented structure addresses the open-ended nature of multiple languages and language interoperability APIs. We focus here as an application on the construction of call-graphs that capture both inter-language and intra-language calls. The algorithms for extracting multilingual call-graphs from codebases are presented, and several examples of multilingual software engineering analysis are discussed. The state of the implementation and testing of MLSA is presented, and the implications for future work are discussed.
High average-power, low-jitter, 10-GHz semiconductor modelocked laser system (2003)

Summary form only given. The development of an all semiconductor-based 10 GHz repetition rate, 100 mW average power, sub 60 fs jitter pulse train is shown. All devices described are ridge-guided single mode waveguides. Modelocked pulses at 1.55 /spl mu/m were generated from a harmonically modelocked external cavity with fundamental frequency of 1 GHz. A low-capacitance, two-section curved waveguide gain element was utilized to actively modelock the cavity at 10 GHz by driving the short 50 /spl mu/m long modulator section with 17 dBm of RF power. Stable modelocking produced 8-ps pulses with an average output power of 0.3 mW. These pulses were initially amplified to the 10 mW level by single-pass through a 2.0 mm long angled-stripe semiconductor optical amplifier driven with 130 mA of forward bias.
Limit cycles analysis in hybrid anti-lock braking systems (2007)

We investigate the stability and robustness properties of Anti-lock Braking Systems based on hydraulic actuators with on/off dynamics. Namely, we propose a hybrid ABS controller which gives rise to an asymptotically stable limit cycle on the wheel slip. The proposed approach allows to perform a structural stability analysis with respect to different road conditions and to the actuator rate limit.
(Invited) Challenges with Quantum Chemistry-Based Screening of Electrochemical Stability of Lithium Battery Electrolytes (2015)

Challenges with the quantum chemistry based-screening of electrochemical stability of solvents and salts with potential applications in lithium batteries are discussed. Initial high throughput screening of carbonate and phosphate-based electrolyte solvents provided insight into first and second reduction and oxidation potentials and reorganization energies of these solvents. It has been found that it was important to include a lithium cation in the screening of semifluorinated solvents. Two reduction pathways has been found for lithium complexed with semifluorinated solvents and salts such as lithium bis(fluorosulfonyl)imide (LiFSI): the low rate defluorination reaction occurring at high potentials and fast solvent or anion reduction occurring at significantly lower potentials. A spontaneous deprotonation of carbonate solvents at the surface of the completely de-lithiated LiNi 0.5 Mn 1.5 O 4 cathode has been found.
A Preliminary Report of a New Gelatin Liquefaction Method (1953)

Novel therapies are urgently needed for ovarian cancer (OC), the fifth deadliest cancer in women. OC is generally characterized by an immunosuppressive tumor microenvironment (TME) and less than 10% of patients respond to immune checkpoint blockade (ICB) therapy, though better OC prognosis is associated with high tumor-infiltrating CD8 T cells. DNA methyltransferase inhibitors (DNMTis) remove methylation and activate transcription of double-stranded (ds)RNA in OC. These dsRNAs are sensed in the cytoplasm and trigger the induction of type I IFN and also the transcription of interferon-stimulated genes (ISGs). Adenosine deaminase 1 (ADAR1) is an ISG that edits mammalian dsRNA with an A-to-I nucleotide change. These edited dsRNAs cannot be sensed by dsRNA sensors, and thus ADAR1 can inhibit this type I IFN response. Our preliminary RNA-seq analysis from human OC cell lines indicates that RNA editing by ADAR1 is increased after DNMTi treatment. To test the hypothesis that Adar1 loss will amplify the DNMTi-induced IFN response in OC, we implanted mice with syngeneic ID8 murine OC Adar1 knockdown (KD) cells or control cells and treated with DNMTi. We show that DNMTi treatment reduces tumor burden and extends survival in this OC model. Loss of Adar1 significantly prolongs survival in this model, which is further improved with DNMTi treatment. DNMTi treatment of murine OC cells combined with Adar1 KD increases T cell migration in transwell migration assays and also enhances expression of chemokines CCL5, CCL2, and CXCL10. We are currently performing immunophenotyping analyses to interrogate the composition of immune cells in the TME in the mouse model of OC. These studies thus describe a role of Adar1 in the DNMTi-induced immune response in OC.
233 GENDER-UNSPECIFIC KNOCKOUT OF THE GGTA1 GENE IN PIGS USING ZINC FINGER NUCLEASES (2011)

A knockout (KO) of the porcine a1,3-galactosyltransferase (GGTA1) gene is crucial for controlling the hyperacute rejection after pig-to-human xenotransplantation. Porcine kidney and cardiac xenografts from Gal-KO pigs showed prolonged survival after transplantation into baboons. Unfortunately, knockouts produced by conventional targeting (homologous recombination) are rare events and normally do not lead to biallelic KO. Zinc-finger nucleases (ZFN) have been shown to be much more efficient by inducing mutations via specific cleavage followed by nonhomologous end joining (NHEJ). Zinc-finger nucleases do not require antibiotic selection. Here, we used designed ZFN to specifically target exon 9 of the GGTA1 gene encoding the catalytic domain of the Gal-transferase. Recently, we generated female pigs with a GGTA1-KO using ZFN (Hauschild et al. 2011 PNAS108, 12 013–12 017). Here, we investigated whether cells of a male cell line are susceptible to ZFN-mediated genome editing in a comparable manner. Male porcine fetal fibroblasts (3 × 106) were co-transfected with a ZFN-plasmid pair (7.5 µg each) by electroporation at 250 V and 400 µF. One week after transfection, a Cel-I assay revealed a NHEJ rate of 5.7% of all alleles in the cell population. After magnetic bead selection, Gal-expression was analysed by fluorescence-activated cell sorting (FACS) using fluorescein isothiocyanate (FITC)-conjugated isolectin-B4. Ninety-five percent of the cells were free of Gal epitopes, indicating a biallelic KO. These Gal-negative cells served as donor cells in somatic cell nuclear transfer (SCNT). In total, 507 transgenic embryos were transferred into 6 recipient sows. By obtaining live animals by SCNT after transfer of male ZFN-GGTA1-KO embryos, we will have produced female and male ZFN-KO pigs, which can be used for further breeding experiments to circumvent the extensive and relative inefficient recloning method. These results show that ZFN work independent of the sex of the cells and that a biallelic Gal-KO can be produced in male cells by using the ZFN technology. This technology could benefit both agriculture and biomedicine and establishes the pig as a model for human diseases.
An integrated configuration of antennas and filters for front-end module in massive-MIMO transmitter (2015)

This paper presents an integrated configuration of patch antennas and low-profile filters for a front-end module in a Massive-MIMO transmitter on 5G era. It is very important for the Massive-MIMO transmitter to build thin and light-weight equipment from the viewpoint of easy installation. However, in general, conventional filters used in base station transmitters are large and heavy-weight, which prevents the Massive-MIMO transmitter from achieving its compact-sized configuration. This paper employs a substrate integrated waveguide (SIW) filter which can provide thin structure combined with antennas using the same substrate material. This paper evaluates the proposed configuration by computer simulation including SIW filters and patch antennas in order to reveal the directivity degradation by the SIW filters. There is almost no degradation with regard to the directivity of the proposed configuration as an array antenna. These investigation results show a key-way to configure the Massive-MIMO transmitter that can offer advantages in low-profile and light-weight.
Nitroarylstannanes as Synthons for the Preparation of Phenanthridine and Benzo[i]phenanthridine Derivatives (2000)

ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTNitroarylstannanes as Synthons for the Preparation of Phenanthridine and Benzo[i]phenanthridine DerivativesDajie Li, Baoping Zhao, and Edmond J. LaVoieView Author Information Department of Pharmaceutical Chemistry, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854-8020 Cite this: J. Org. Chem. 2000, 65, 9, 2802–2805Publication Date (Web):March 30, 2000Publication History Received19 August 1999Published online30 March 2000Published inissue 1 May 2000https://pubs.acs.org/doi/10.1021/jo991318ghttps://doi.org/10.1021/jo991318gbrief-reportACS PublicationsCopyright © 2000 American Chemical SocietyRequest reuse permissionsArticle Views1647Altmetric-Citations40LEARN 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-AlertscloseSupporting Info (2)»Supporting Information Supporting Information SUBJECTS:Cyclization,Mixtures,Organic reactions,Reaction products,Zinc Get e-Alerts
Piloting IBM Watson Oncology within Memorial Sloan Kettering’s regional network. (2014)

e17653 Background: We have reported on efforts to develop IBM Watson Oncology, a cognitive computing application designed to inform clinical decision making. The initial prototype demonstrated results in lung and breast cancers, and addressed some complexities of natural language processing (Bach, Proc ASCO 2013). Here, we report our experience with a pilot testing program with staff at Memorial Sloan Kettering’s (MSK) regional network who are not part of the development and training team. Methods: Medical oncologists from MSK’s regional network were invited to evaluate the application. These physicians manage patients with many primary types of cancer. We gave login credentials for the internet-based application and asked each doctor to use the program designed to assist in choosing initial therapies for breast and colorectal cancers. Members of the development team, including physicians, analysts, engineers, and usability experts interviewed these pilot users to gather feedback. Data from each user’s selection of treatment options was collected, including assessments of accuracy and quality. Users could report issues directly through an embedded tool. Results: To date, six users have independently logged into the pilot, created and submitted cases, and evaluated the application’s output and functionality. Users recognized value in selecting appropriate treatment options, but noted opportunities to enhance the usability and utility of the pilot for physicians using the tool as part of their normal routines. Users commented that it took too long to enter a case because some of the approximately 20 clinical attributes were irrelevant and felt data should have been imported from existing data sources. Users also requested the device provide more information on how treatments were scored and ranked. Conclusions: IBM Watson Oncology’s development team has created an initial pilot application. We plan to improve the application’s usability and utility by enhancing integration with electronic medical record systems, expanding users’ ability to iteratively add new clinical attributes, and providing additional information on the factors influencing the system’s output. Testing by MSK medical oncologists and other organizations continues.