gebhart/patrepeval huggingface dataset:
Double-Young Tristable Mechanisms (2012)

In this work, we present a new class of tristable mechanism called double Young tristable mechanisms (DYTMs), which connect two prestrained Young bistable mechanisms to create three distinct stable equilibrium positions. A three-degree-of-freedom pseudorigid-body (RPB) model is proposed to accurately predict the kinetostatic behaviors of both Young mechanisms and DYTMs. An optimization-based design method is also presented for DYTMs. Two DYTM prototypes were designed based on the method and machined out of polypropylene sheets. Both of the prototypes exhibit tristability, which demonstrate the feasibility of achieving tristability through connecting two prestrained Young mechanisms. The successful prototyping also indicates that the proposed three degree-of-freedom (3DOF) model is capable of identifying feasible designs for DYTMs.
Basic playback system (1981)

On playback neither of the erase heads are used.
Liquid crystal television in speckle metrology (1988)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text Brian Bates and Paul C. Miller, "Liquid crystal television in speckle metrology," Appl. Opt. 27, 2816-2817 (1988) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Eficacia del Propóleos sobre Malassezia pachydermatis. Correlación de distintas Técnicas in Vitro. (2006)

RESUMEN. El propoleos es un producto obtenido en la colmena, conocido por sus propiedades antimicrobianas. Varios ensayos han demostrado esta actividad, pero los resultados son contradictorios y escasos. El objetivo de este trabajo fue determinar la accion del extracto etanolico de propoleos sobre cepas de Malassezia pachydermatis, aisladas del conducto auditivo de caninos con diagnostico clinico de otitis externa. Diferentes tecnicas de siembra fueron comparadas, a los efectos de seleccionar entre ellas la mas adecuada, para determinar la eficacia del propoleos sobre M. pachydermatis.De todas las tecnicas empleadas la dilucion en placa de agar Sabouraud fue la mas apropiada, ya que permitio realizar una lectura clara y sencilla de los resultados obtenidos. A traves de la misma se demostro la sensibilidad in vitrode las cepas estudiadas al extracto etanolico de propoleos utilizado en el presente trabajo. SUMMARY. “Efficiency of Propolis on Malassezia pachydermatis.Correlation of Different In Vitro T e c hniques”. Propolis is a product obtained in the beehive, well-known by its antimicrobial activity. Several assays have demonstrated such activity, but the results were scarce and contradictory. The objective of this work was to determine the action of the ethanolic extract of propolis over strains of Malassezia pachydermatis, isolated of the external ear channel of dogs with clinical diagnosis of external otitis. Different inoculation techniques were compared to select the most appropriate method for assessing the antimicrobial activity of the propolis over M . pachydermatis.The agar dilution method using Sabouraud agar demonstrated to be the most suitable, for it allowed a clear and simple reading of the obtained results. The susceptibility in vitroof the studied strains of Malassezia pachydermatisto the ethanolic extract of propolis used in the present work was observed.
The evolution of metabolic networks of E. coli (2011)

Our findings demonstrate that a pangenome-scale metabolic model can be used to rapidly construct additional E. coli strain-specific models, and that quantitative models of different strains of E. coli can accurately predict strain-specific phenotypes. Such pangenome and strain-specific models can be further used to engineer metabolic phenotypes of interest, such as designing new industrial E. coli strains.
MA2TG: A Functional Test Program Generator for Microprocessor Verification (2005)

A novel specification driven and constraints solving based method to automatically generate test programs from simple to complex ones for advanced microprocessors is presented in this paper. Our microprocessor architectural automatic test program generator (MA/sup 2/TG) can produce not only random test programs but also a sequence of instructions for a specific constraint by specifying a user constraints file. The proposed methodology makes three important contributions. First, it simplifies the microprocessor architecture modeling and eases adoption of architecture modification via architecture description language (ADL) specification. Second, it generates test programs for specific constraints utilizing the power of state-to-art constraints solving techniques. Finally, the number of test program for microprocessor verification and the verification time are dramatically reduced. We applied this method on DLX processor to illustrate the usefulness of our approach.
Search, similarity, and integration of features between and within dimensions. (1991)

Three experiments test the claim that conjunction search is difficult only because the target resembles each distractor, whereas the distractors are highly discriminable from each other. The results show that when similarity is controlled, there is an additional difficulty created by the need to conjoin features. In addition, a target with standard values (blue and vertical) is found more easily than targets with nonstandard values (e.g., violet and tilted). Similarity may result in shared components in the functional codes that represent the targets and the distractors. A hypothesis that is based on coarse coding of features values relates the difficulty of feature search with nonstandard targets to problems in coding conjunctions of features within dimensions. Consistent with this account, illusory targets are reported not only in the usual conjunction displays but also in displays containing different features that may share the same underlying components.
DNA polymorphism in strains of Listeria monocytogenes (1991)

DNA polymorphism in 35 Listeria monocytogenes strains belonging to serovars 1/2a, 1/2b, 1/2c, and 4b was studied by genomic DNA digestion. The restriction endonucleases ApaI and NotI, which cleave DNA at rare sequences, were used, and DNA fragments were analyzed by pulsed-field gel electrophoresis. Restriction fragment length polymorphism varied among different serovars and was used for epidemiological studies, but serovar 1/2c isolates could not be analyzed because their restriction patterns were indistinguishable. The genome sizes were calculated by addition of the sizes of the ApaI fragments and were found to be about 2,660 kb for serovar 1/2a strains, 2,640 kb for serovar 1/2b strains, and 2,710 kb for serovar 4b strains but only 2,340 kb for serovar 1/2c strains. This last group therefore appears to differ from the other serovar strains by the absence of restriction fragment length polymorphism and a chromosome that is 15% shorter, suggesting that strains of serovar 1/2c have quite recently emerged.
Enhancing Speech Coder Quality: Improved Noise Estimation for Postlters (2011)

ITU-T G.711.1 is a multirate wideband extension for the well-known ITU-T G.711 pulse code modulation of voice frequencies. The extended system is fully interoperable with the legacy narrowband one. In the case where the legacy G.711 is used to code a speech signal and G.711.1 is used to decode it, quantization noise may be audible. For this situation, the standard proposes an optional postfilter. The application of postfiltering requires an estimation of the quantization noise. The more accurate the estimate of the quantization noise is, the better the performance of the postfilter can be. In this thesis, we propose an improved noise estimator for the postfilter proposed for the G.711.1 codec and assess its performance. The proposed estimator provides a more accurate estimate of the noise with the same computational complexity.
A modern state estimation in power system energy (2003)

Summary form only given. The fast development in electrical power networks and its consequent complexity, impose a more useful state estimation operational scheme. It is important to shorten the time interval between consecutive state estimations to allow a closer monitoring of the system evolution, particularly in emergency situations in which the system state changes more rapidly. Technical developments in distributed energy management systems, based on fast data communication networks, open up the possibility of parallel and distributed implementation of the state estimation function. This paper introduces and discusses some ideas for the implementation of parallel and distributed state estimation in electrical power systems. A solution methodology based on conventional state estimation algorithms applicable in local networks is presented. Some results obtained from an IEEE test system are analysed, so that one can appreciate the performances of the proposed method. An evaluation of the degree of natural decoupling in the state estimation problem is also performed, and compared with the results of computational experiments with standard WLS methods.
Diffuse Optical Tomography: Principles and Applications (2010)

Based on near infrared optical technologies and model-based inverse computations, DOT is an imaging method that can provide spatial distributions of intrinsic tissue optical properties through model-based reconstruction algorithms using NIR measurements along or near the boundary of tissue. This book covers almost every aspect of DOT--from mathematics, reconstruction algorithms, instrumentation, and phantom experiments to clinical applications. The text covers the fundamentals principles of DOT, including its mathematical foundations and computational methods, and explains how to set up experimental image systems, as well as how to translate laboratory studies into clinical applications--Provided by publisher.
A Novel SLLC Series Resonant Converter for The Boost DC/DC Converter (2007)

Recently, the high frequency link boost DC/DC converter has been used widely for PCS (Power Conditioning System) because of the requirements of small size and low cost. However, the high frequency link boost DC/DC converters applied the conventional voltage-fed converter and current-fed converter have some problems like high conduction losses and high surge voltage due to high circulating current and leakage inductance, respectively. To improve these problems, a novel secondary LLC (called SLLC) series resonant converter is proposed in this paper and its theoretical analysis, its operating waveforms, simulation and experimental results for a boost DC/DC converter using SLLC series resonant topology verifies the proposed topology. 800W experimental prototype is tested.
Virtual network functions placement and routing optimization (2015)

Network Functions Virtualization (NFV) is incrementally deployed by Internet Service Providers (ISPs) in their carrier networks, by means of Virtual Network Function (VNF) chains, to address customers' demands. The motivation is the increasing manageability, reliability and performance of NFV systems, the gains in energy and space granted by virtualization, at a cost that becomes competitive with respect to legacy physical network function nodes. From a network optimization perspective, the routing of VNF chains across a carrier network implies key novelties making the VNF chain routing problem unique with respect to the state of the art: the bitrate of each demand flow can change along a VNF chain, the VNF processing latency and computing load can be a function of the demands traffic, VNFs can be shared among demands, etc. In this paper, we provide an NFV network model suitable for ISP operations. We define the generic VNF chain routing optimization problem and devise a mixed integer linear programming formulation. By extensive simulation on realistic ISP topologies, we draw conclusions on the trade-offs achievable between legacy Traffic Engineering (TE) ISP goals and novel combined TE-NFV goals.
Design of residue generators and multioperand modular adders using carry-save adders (2002)

The design of residue generators and multioperand modular adders is studied. Novel highly parallel schemes using carry-save adders with end-around carry are proposed for either type of circuit. They are derived on the basis of the periodicity of the series of powers of two taken modulo A (A is a module). The novel circuits are faster and use less hardware than existing similar circuits.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Oral squamous cell carcinoma proliferative phenotype is modulated by proanthocyanidins: a potential prevention and treatment alternative for oral cancer (2007)

These results signify that PAC may be a compelling candidate for testing in both animal and human models. Furthermore, these data provide adequate justification for elucidating the divergent mechanisms of PAC-induced proliferation, inhibition, and apoptosis among these and other cell lines.
Differences in Cardiac Hypertrophy in Exercise and in Hypoxia (1965)

A group of rats, including both sexes, was exercised on an electrically-driven treadmill at the rate of one mile per hour for two hours daily to a total of 60 hours. Another group, also including both sexes, was exposed to intermittent hypoxia for eight hours daily, six days per week, for four weeks at a barometric pressure of 303 mm Hg corresponding to a simulated altitude of approximately 24,000 feet (7,315 m). All these animals showed significant hypertrophy of both ventricles. Exercise produced about the same percentage of weight increase in the right and also in the left ventricular walls. The per cent increase of the right ventricular wall relative to that of the left ventricular wall was greater after intermittent hypoxia than after exercise. The ratio of left ventricular weight/right ventricular weight was significantly less in the hypoxic group than in the exercised group. This indicates a relative right ventricular hypertrophy produced by the intermittent hypoxia. Reasons are given to indicate that the pulmonary hypertension associated with hypoxia is the cause of this right ventricular predominance.
Quality parameters for a multimodal EEG/EMG/kinematic brain-computer interface (BCI) aiming to suppress neurological tremor in upper limbs (2014)

Tremor is the most common movement disorder encountered during daily neurological practice. Tremor in the upper limbs causes functional disability and social inconvenience, impairing daily life activities. The response of tremor to pharmacotherapy is variable. Therefore, a combination of drugs is often required. Surgery is considered when the response to medications is not sufficient. However, about one third of patients are refractory to current treatments. New bioengineering therapies are emerging as possible alternatives. Our study was carried out in the framework of the European project "Tremor" (ICT-2007-224051). The main purpose of this challenging project was to develop and validate a new treatment for upper limb tremor based on the combination of functional electrical stimulation (FES; which has been shown to reduce upper limb tremor) with a brain-computer interface (BCI). A BCI-driven detection of voluntary movement is used to trigger FES in a closed-loop approach. Neurological tremor is detected using a matrix of EMG electrodes and inertial sensors embedded in a wearable textile. The identification of the intentionality of movement is a critical aspect to optimize this complex system. We propose a multimodal detection of the intentionality of movement by fusing signals from EEG, EMG and kinematic sensors (gyroscopes and accelerometry). Parameters of prediction of movement are extracted in order to provide global prediction plots and trigger FES properly. In particular, quality parameters (QPs) for the EEG signals, corticomuscular coherence and event-related desynchronization/synchronization (ERD/ERS) parameters are combined in an original algorithm which takes into account the refractoriness/responsiveness of tremor. A simulation study of the relationship between the threshold of ERD/ERS of artificial EEG traces and the QPs is also provided. Very interestingly, values of QPs were much greater than those obtained for the corticomuscular module alone.
Factors affecting Chondrostereum purpureum infection of Salix (1988)

Abstract Factors affecting Chondrostereum purpureum infection of Salix were studied in the laboratory and field. Basidiospores passively entered all xylem tissues but not cambial, phloem or bark tissues. A small number entered stems up to 70 mm from the wound surface although most were retained within tissues 30 mm from the surface. Basidiospores required free water for germination and the optimum temperature for germtube extension was 26°C. Hyphae ramified extensively throughout xylem tissues eventually plugging vessels. Cell walls and starch granules were penetrated with enzymatic assistance. The depth of C. purpureum penetration was affected by wound diameter and inoculum concentration but not stem age. Wounds of Salix were susceptible to C. purpureum throughout the year and greater depth of penetration was obtained using mycelium as inoculum than basidiospores. The depth of C. purpureum penetration decreased with duration of wound exposure prior to inoculation. A characteristic flora of saprophytic fungi and bacteria inhabited wound tissues.
Biodegradation of organic compounds in fluidized bed reactors (1985)

Abstract Biodegradation of organics in fluidized bed reactors was studied experimentally. Both single‐substrate and mixed‐substrate systems were considered. With the use of a previously developed biofilm model, parameters pertinent to the degradation of mixed‐substrate systems and their single substrate system counterparts were evaluated and compared. Two approaches attempted to predict the degradation of a mixed‐substrate system. One assumed independent biodegradaion and diffusion of individual substrates while the other used a lumped concentration approach. The latter approach was found to give better agreement with experiments than the former.
Theory of Synchronous Demodulator as Used in NTSC Color Television Receiver (1954)

It is shown that the plate output of the synchronous demodulators used in NTSC color television receivers will contain a variety of signals in addition to the desired color-difference signals. Among these are signals representing chromatic distortion due to rectification of the chrominance subcarrier, interference due to the passage of hf portions of the monochrome signal through the chrominance channel, and cross talk due to reaction between chrominance and hf monochrome signals. Estimates are made as to the seriousness of each undesired signal component, and it is concluded that there will be certain conditions under which each might produce a readily perceptible effect.
Study on GC fingerprinting of volatile oils in {\sl Cinnamomum cassia} (2006)

OBJECTIVE To establish a fingerprint analysis on the volatile oil of Cinnamomum cassia Presl and to offer the characteristic data for the quality evaluation.METHODS The main components of the volatile oil of Cinnamomum cassia Presl from different producing areas in Guangdong province and Guangxi province were compared by GC fingerprinting. The common components and the resemblance were determined . The GC system consisted of HP 6890 and FID. The analysis was performed on a HP-5 column (Crosslinked Mehyl siloxame, 30 m×0.321 mm,0.25 μm). The temperatures of sample vent and FID were 240-300 ℃,respectively. The column temperature was programmedly elevated from 100-200 ℃. The carrier gas was N2. The flow rate was 0.4 mL·min-1. The refractive ratio of distillation was 50 : 1. RESULTS The GC fingerprinting was established. The similarity degree of the crude drugs from different producing areas were compared . CONCLUSION The method is reliable, accurate and can be applied to the quality control of Cinnamomum cassia Presl.
Tentative Identification of Carbonyl Compounds In Wood Smoke by Gas Chromatography (1966)

SUMMARY Isolation, separation, and partial identification of 21 carbonyl compounds found in wood smoke are described. Isolation was by precipitation of carbonyls by 2,4‐dinitrophenyl‐hydrazine. Separation was by gas cbromatography using Carbowax ZOM and diisodecylphthlate as the liquid phase. Tentative identification of the eluted components was based upon retention times of the unknowns compared with those of authentic compounds on the two columns used. Sixteen of the twenty‐one components were tentatively identified: formaldehyde, acetaldehyde, propanal, acetone, acrolein, isobutyraldehyde, butanal, 2‐butanone, diacetyl, isovaleraldehyde, J‐methyl‐Z‐butanone, crotonaldehyde, pinacolone, 4‐methyl‐3‐pentanone, α‐methylvaleraldehyde, and tiglic aldehyde. Trace amounts of 3‐hexanone and 2‐hexanone were found. Also present were 1‐3 five‐carbon compounds, but no separation could by. achieved to identify them.
Shrinking the Cross Section (2017)

We construct a robust stochastic discount factor (SDF) that summarizes the joint explanatory power of a large number of cross-sectional stock return predictors. Our method achieves robust out-of-sample performance in this high-dimensional setting by imposing an economically motivated prior on SDF coefficients that shrinks the contributions of low-variance principal components of the candidate factors. While empirical asset pricing research has focused on SDFs with a small number of characteristics-based factors-e.g., the four-or five-factor models discussed in the recent literature-we find that such a characteristics-sparse SDF cannot adequately summarize the cross-section of expected stock returns. However, a relatively small number of principal components of the universe of potential characteristics-based factors can approximate the SDF quite well.
A Comparison of Fish Oil or Corn Oil Supplements in Hyperlipidemic Subjects with NIDDM (1995)

In this study, fish oil supplementation improved plasma VLDL cholesterol, VLDL TGs, and total TGs while having a transient deterioration in LDL cholesterol in subjects with NIDDM. Furthermore, fish oil supplementation had no significant deleterious effect on glycemic control.
Phase Transitions in Plastic Crystals (1962)

Machine learning (ML) is transforming all areas of science. The complex and time-consuming calculations in molecular simulations are particularly suitable for an ML revolution and have already been profoundly affected by the application of existing ML ...Read More