gebhart/patrepeval huggingface dataset:
<title>Determination of continuous system transfer functions from sampled pulse response data</title> (1993)

A method for determining the transfer function of a continuous system from sampled responses to single and multiple pulse excitation is presented. The method is an extension of the sampled edge response method pioneered by the theoretical work of A. Papoulis in 1962 and the application of the theory to optical systems by B. Tatian in 1965. Occasions arise when pulse rather than step function stimuli are available for system excitations. In such cases, the method presented is practical for determining the system transfer function. The use of anti- aliasing filters and estimation of non-bandwidth limited transfer functions are also discussed.
Application of PECVD-SiC as intermediate layer in crystalline silicon thin-film solar cells (2003)

We present first results on the application of PECVD silicon carbide as intermediate layer for crystalline silicon thin-film solar cells. Silicon carbide layers were deposited by PECVD and characterized by Auger spectrometry and SEM. The subsequent sample processing included high-temperature anneal, deposition of a silicon seeding layer by CVD, recrystallization of the seeding layer by zone-melting, epitaxial growth of the base layer and finally a solar cell process where conventional and one-side contact scheme were realized. All process steps were successfully accomplished but characterization of the samples revealed that the silicon carbide intermediate layers were partly damaged or perforated. Efficiencies up to 7.1% were reached using a conventional contact scheme.
Synthesis of Functionalized Pyrrolidin-2-ones and (<i>S</i>)-Vigabatrin from Pyrrole (2006)

Starting from pyrrole, the novel 3,4-didehydropyrohomoglutamate 8 or (ent)-8 can be efficiently synthesized in up to 91% ee, which can be utilized as a versatile building block toward functionalized pyrrolidin-2-ones. Moreover, (ent)-8 can be readily converted to (S)-Vigabatrin, being an irreversible inhibitor for GABA-T, which is used as adjunctive therapy in patients that suffer from epilepsy.
Temperature Dependence of Resistivity and its Anisotropy of Ba-Y-Cu-O Single Crystals (1987)

The temperature dependence of resistance of single crystals of Ba 2 YCu 3 O 7- y was examined. The resistance perpendicular to the plane exhibited a semiconductor-like temperature dependence, while the resistance parallel to the a - b plane was metallic. Thus, the anisotropy of conductivity increased at low temperature.
The Xenopus animal cap transcriptome: building a mucociliary epithelium (2018)

With the availability of deep RNA sequencing, model organisms such as Xenopus offer an outstanding opportunity to investigate the genetic basis of vertebrate organ formation from its embryonic beginnings. Here we investigate dynamics of the RNA landscape during formation of the Xenopus tropicalis larval epidermis. Differentiation of non-neural ectoderm starts at gastrulation and takes about one day to produce a functional mucociliary epithelium, highly related to the one in human airways. To obtain RNA expression data, uncontaminated by non-epidermal tissues of the embryo, we use prospective ectodermal explants called Animal Caps (ACs), which differentiate autonomously into a ciliated epidermis. Their global transcriptome is investigated at three key timepoints, with a cumulative sequencing depth of ∼108 reads per developmental stage. This database is provided as online Web Tool to the scientific community. In this paper, we report on global changes in gene expression, an unanticipated diversity of mRNA splicing isoforms, expression patterns of repetitive DNA Elements, and the complexity of circular RNAs during this process. Computationally we derive transcription factor hubs from this data set, which may help in the future to define novel genetic drivers of epidermal differentiation in vertebrates.
A Review of Automatic Speaker Age Classification, Recognition and Identifying Speaker Emotion Using Voice Signal (2014)

Accurate gender classification is mostly convenient in case of speech and speaker recognition and also in speech emotion classification; since a superior performance has been stated when separate acoustic models are employed for males and females. Gender classification is also specious into face recognition, particular video summarization, human or robot interaction (HCI), etc. In various criminal cases, an evidence either in the form of as phone conversations or in the form of as tape recordings. Thus, act of law enforcement agencies have been concerned which help the identification of a criminal about accurate approaches to profile dissimilar characteristics of a speaker from recorded patterns of voice. The importance of automatically recognizing expressed emotions from human speech has grown with the increasing role of spoken language interfaces in human-computer interaction (HCI) applications. This explores the detection of domain-specific emotions using language and discourse information in conjunction with acoustic correlates of emotion in speech signals. The main motivation is on a case study of detecting negative and non-negative emotions using spoken language data obtained from a call center application. Many previous surveys in emotion identification have used only the acoustic information contained in speech.
Optimizing tunneled grid connectivity across firewalls (2009)

Grids today generally assume that concurrent network connections are possible among many processors attached to high-capacity networks. However, inter-network boundaries dividing independent institutions often have firewalls, typically to restrict how many and which ports are accessible. In some cases, ports are opened indefinitely for Grid applications, but this compromises security significantly. On the other hand, solutions that manage port openings in an ad-hoc manner for applications are non-trivial to implement. An alternative firewall traversal technique is required that will provide manageable openings with less complexity involved. This is possible through proxies and managed tunnels using ports already authorized across the firewalls. We have developed a transparent connectivity mechanism for this, called Remus, which reroutes Grid connections through a tunnel on ports allowed across firewalls. However, a single tunnel presents a performance bottleneck. In this paper, we present the method by which Remus distributes several connections over multiple tunnels, improving throughput as a result. Rerouting wrappers hide the tunneling from applications, intercepting outgoing connections and rerouting them transparently. Well-known and mature tools and protocols, such as SSH and/or SOCKS, are utilized, instead of imposing customized, non-standard mechanisms. Results of our experiments are also presented for large file transfers over a Globus-based Grid that uses Remus.
G (1985)

gap (US). The word used to describe a situation where the range of prices at one TRADING SESSION does not overlap the TRADING RANGE at the previous session.
Radiometric Compensation of Images Projected on Non-White Surfaces by Exploiting Chromatic Adaptation and Perceptual Anchoring (2016)

Flat surfaces in our living environment to be used as replacements of a projection screen are not necessarily white. We propose a perceptual radiometric compensation method to counteract the effect of color projection surfaces on image appearance. It reduces color clipping while preserving the hue and brightness of images based on the anchoring property of human visual system. In addition, it considers the effect of chromatic adaptation on perceptual image quality and fixes the color distortion caused by non-white projection surfaces by properly shifting the color of the image pixels toward the complementary color of the projection surface. User ratings show that our method outperforms the existing methods in 974 out of 1020 subjective tests.
<title>Wafer-level chip size package with an air cavity above the active surface for micromechanical applications</title> (2000)

While package developers struggle to keep pace with the shrinking I/O pitch of the latest ICS, another challenge is being added by a new wave of micro-electro-mechanical systems. These devices combine standard IC circuitry with micro-moving silicon structures.
Fullerene-regulated graphene oxide nanosheet membranes with well-defined laminar nanochannels for precise molecule sieving (2018)

Graphene oxide nanosheet membranes with well-defined laminar nanochannels were constructed using functionalized fullerene as a nano-spacer and a crosslinker. The resultant membranes retain good hydrophilicity and have short laminar channels with precise <italic>d</italic>-spacing from 0.91 to 1.56 nm and excellent sieving selectivity for organic dyes.
Holographic three-dimensional displays with liquid crystal on silicon spatial light modulator (2004)

One of the ways to achieve 3D objects visualization is holography. The recent progress of CCD/CMOS cameras provides quick development of digital holographic recording. Optoelectronic reconstruction of digital holograms can be realized by means of variety of spatial light modulators, however each of them suffers several limitations due to big pixel size, low diffraction efficiency and noise. In the paper high efficiency liquid crystal on silicon (LCOS) spatial light modulator is proposed as the novel solution for optoelectronic holographic reconstruction. The system for holograms reconstruction based on LCOS is presented. The results of initial experiments on reconstruction of computer generated and digital holograms of different classes of 2D and 3D objects are shown and discussed. The problems connected with limited resolution of the recording (CCD) and reconstruction (LCOS) devices are considered. The comparison of the results obtained by numerical and optoelectronic reconstruction of digital holograms is presented, together with a discussion of the limitations and further possibilities of these techniques.
Isocyanic Acid As A Laser Fuel (1988)

The potential of isocyanic acid as a fuel for a short-wavelength chemical laser has been investigated. The experiments were performed by carrying out reactions of F atoms with HNCO to obtain NCO radicals and with coreagents of the type RHn.to obtain R atoms. The NCO + R reactions occurred subsequently. The resulting chemiluminescence was observed to detect electronically excited NR* and other significantly emitting species. Eight coreagents, namely CH4, H20, PH3, NH3, HC1, HBr, SiH4 and B2H6, have been studied in this manner. The results indicate that the NCO radicals react with C, 0 and P atoms to generate the corresponding NR* species. Photon yields from these species have been determined. The CN(B X) photon yield was found to be the highest of all of these, however, the absolute value of the CN(B X) photon yield is low which may be due to the inefficiency of the C-atom production from the F + CH4 reaction. Research is being carried out to develop an efficient C-atom source.
Laser Seam Tracking for Robotic Arc Welding (1996)

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 Jeffrey Noruk and Richard R. Lefebvre, "Laser Seam Tracking for Robotic Arc Welding," Optics & Photonics News 7(6), 23-27 (1996) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Compréhension de textes et lésion cérébrale droite : une étude de cas multiples (2019)

La compréhension d’un texte est une activité complexe faisant intervenir différents processus linguistiques et cognitifs susceptibles d’être altérés après une lésion cérébrale droite. Toutefois, on constate un manque de consensus relatif à l’atteinte des niveaux de représentation de la compréhension de textes aussi bien qu’un manque de consensus concernant l’origine possible d’un déficit en compréhension de textes après une telle lésion. L’objectif de cette étude est, premièrement, d'observer l’impact d’une lésion droite sur la compréhension de textes en fonction de leur demande cognitive, puis, d'étudier les liens entre la compréhension de textes, les compétences sémantiques, la mémoire et les fonctions exécutives. Neuf épreuves ont permis de décrire les capacités cognitives et sémantiques de 8 participants cérébrolésés droits (CLD). Leurs compétences en compréhension de textes ont été évaluées avec le Test de Compréhension de Textes (TCT), dont la charge sémantique (nombre de détails) varie en fonction des textes et où certains textes nécessitent la mise à jour du modèle de situation. Les résultats analysés de façon descriptive et qualitative montrent que les troubles de la compréhension de textes dépendent de leurs caractéristiques. Par ailleurs, de possibles liens ont été établis entre la compréhension de textes des participants et leurs compétences en polysémie de même qu’entre leur compréhension de textes et leur profil cognitif (mémoire de travail, fonctions exécutives). Cette étude fournit davantage de données cliniques concernant les participants CLD et démontre que l'utilisation d'outils tels que le TCT qui permet l’évaluation de la compréhension avec plusieurs textes, pourrait améliorer les interventions en orthophonie.
Photon-limited synthetic-aperture imaging for planet surface studies (2002)

The carrier-to-noise ratio that results from phase-sensitive heterodyne detection in a photon-limited synthetic-aperture ladar (SAL) is developed, propagated through synthetic-aperture signal processing, and combined with speckle to give the signal-to-noise ratio of the resultant image. Carrier- and signal-to-noise ratios are defined in such a way as to be familiar to the optical imaging community. Design equations are presented to show that a 10-microm SAL in orbit around Mars can give centimeter-class resolution with reasonable laser power. SAL is harder to implement in the short-wave infrared and is probably not practical at visible wavelengths unless many separate images can be averaged. Some tutorial information on phase-sensitive heterodyne detection and on synthetic-aperture signal processing and image formation is provided.
Comparison of eye movements in searching for easy-to-find and hard-to-find information in a hierarchically organized information structure (2008)

Finding information by successively selecting hyperlinks on web pages is a typical task performed on websites. A number of web usability studies have provided important insights about how web visitors carry out a search, and have concluded that "following information scent" is the fundamental process involved in the behavior. The purpose of this paper is to explore the relationship between the strength of information scent and web visitors'eye movements. Four web page types with different usability problems were considered. In an eyetracking experiment, eleven participants were asked to find an article on a simulated encyclopedia website by first selecting a heading from among nine provided headings, then selecting the appropriate topic link under the selected heading. The number of eye fixations, the duration of the fixations, and the task completion times were analyzed. The eye-tracking study reported in this paper added further insight to the knowledge gained from traditional web usability studies, in which visitors'performance are measured by the total number of clicks and task completion times. Website visitors'performance will not exhibit any differences in the initial heading selection stage irrespective of whether or not the pages have usability problems. However, performance will deteriorate in terms of the total number of fixations in the subsequent link selection stage when the web page has any kind of usability problem.
Agrochelin, a New Cytotoxic Antibiotic from a Marine Agrobacterium Taxonomy, Fermentation, Isolation, Physico-chemical Properties and Biological Activity. (1999)

Agrochelin, a new alkaloid cytotoxic substance, was produced by the fermentation of Agrobacterium sp. The compound was obtained from the bacterial cells by solvent extraction and purified by silica gel chromatography. Agrochelin (1) and its acetyl derivative (2) exhibited cytotoxic activity.
Cooperative Interactions Between RB and p53 Regulate Cell Proliferation, Cell Senescence, and Apoptosis in Human Vascular Smooth Muscle Cells From Atherosclerotic Plaques (1998)

Compared with vascular smooth muscle cells (VSMCs) from normal vessels, VSMCs from human atherosclerotic plaques proliferate more slowly, undergo earlier senescence, and demonstrate higher levels of apoptosis in culture. The tumor suppressor genes p105RB (retinoblastoma, acting through the E2F transcription factor family) and p53 regulate cell proliferation, cell senescence, and apoptosis in many cell types. We have therefore determined whether these stable growth properties of plaque VSMCs reflect altered activity of RB and/or p53. VSMCs were derived from coronary atherectomies or from normal coronary arteries from transplant recipients. Compared with normal VSMCs, plaque VSMCs showed a higher ratio of the active (hypophosphorylated) to the inactive (phosphorylated) form of RB and a lower level of E2F transcriptional activity. Cells were stably transfected with retrovirus constructs that inhibited RB or p53 alone or in combination. Suppression of RB alone increased rates of cell proliferation and apoptosis and inhibited cell senescence in normal VSMCs. Suppression of p53 and RB together had similar effects but, additionally, resulted in immortalization of normal VSMC cultures. In contrast, inhibition of RB binding to E2F or ectopic expression of E2F-1 in plaque VSMCs induced massive apoptosis, which required suppression of p53 to rescue cells. Suppression of RB and p53 together increased cell proliferation and delayed senescence but failed to immortalize plaque VSMCs. Inhibition of p53 alone had minimal effects on plaque VSMCs but increased the lifespan of normal VSMCs. We conclude that human plaque VSMCs have slower rates of cell proliferation and earlier senescence than do cells from normal vessels because of a defect in phosphorylation of RB. Furthermore, both disruption of RB/E2F and inhibition of p53 are required for plaque VSMCs to proliferate without apoptosis. This observation may explain the relatively low level of cell proliferation and high level of apoptosis seen in VSMCs in human atherosclerotic plaques.
Heterogeneous molecular background of the weak C, VS+, hr<sup>B</sup>–, Hr<sup>B</sup>– phenotype in black persons (2008)

The study showed the heterogeneity of the molecular background of the weak C, VS+, hr(B)-, Hr(B)- phenotype in the black population. The screening of blood donors in this population for hr(B)- or Hr(B)- phenotype should implement the molecular characterization of Rh genes.
Temporal dynamics of musical emotions examined through intersubject synchrony of brain activity (2015)

To study emotional reactions to music, it is important to consider the temporal dynamics of both affective responses and underlying brain activity. Here, we investigated emotions induced by music using functional magnetic resonance imaging (fMRI) with a data-driven approach based on intersubject correlations (ISC). This method allowed us to identify moments in the music that produced similar brain activity (i.e. synchrony) among listeners under relatively natural listening conditions. Continuous ratings of subjective pleasantness and arousal elicited by the music were also obtained for the music outside of the scanner. Our results reveal synchronous activations in left amygdala, left insula and right caudate nucleus that were associated with higher arousal, whereas positive valence ratings correlated with decreases in amygdala and caudate activity. Additional analyses showed that synchronous amygdala responses were driven by energy-related features in the music such as root mean square and dissonance, while synchrony in insula was additionally sensitive to acoustic event density. Intersubject synchrony also occurred in the left nucleus accumbens, a region critically implicated in reward processing. Our study demonstrates the feasibility and usefulness of an approach based on ISC to explore the temporal dynamics of music perception and emotion in naturalistic conditions.
Fructose Containing Syrups (2010)

This chapter contains sections titled: Introduction Commercial development Europe and the HFGS (isoglucose) production quota Inulin Conclusion
Postabortion care and safe motherhood in Ghana. (1997)

In Ghana, a multidisciplinary Safe Motherhood Task Force complied a comprehensive Safe Motherhood plan that addresses such issues as policy, research, community education and involvement, materials development, and equipment supply. Development of this plan began after a 1993 consultative meeting called for creation of the task force. The task force met over the next year to develop clinical and health education guidelines for Safe Motherhood that included the management of abortion complications but failed to recommend that uterine evacuation be performed at the health center level. Meanwhile, another multidisciplinary group was developing a set of reproductive health service policies and standards that identified the key services that should be available at each level of the health system and the appropriate providers for each service. This group recommended that family planning nurses and midwives provide postabortion care, including uterine evacuation with manual vacuum aspiration. This policy was adopted by the Safe Motherhood Task Force, and the group began working on implementation issues such as funding for training and equipment needs related to postabortion care. Training of trainers workshops began in 1995, and the plan is now being implemented at the regional level. A study is also underway to determine the safety, acceptability, and feasibility of primary care midwives performing uterine evacuation.
A comparative study of Fe catalysts, ZnCI2 catalysts and ZnCI2 - promoted Fe catalysts for hydrocracking of Athabasca bitumen (1977)

Tests were carried out during thermal hydrocracking of Athabasca bitumen on certain catalysts produced from inexpensive raw materials. Two classes were investigated: iron catalysts (Class I) and zinc chloridepromoted catalysts (Class II). These experiments were carried out in a batch autoclave. The reaction temperature varied from 385 °C to 455°C at an H2 pressure of 13.8 MPa. Reaction times ranged from 30 to 210 minutes. The products obtained by using these catalysts were analyzed and compared with those .using two conventional catalysts and those with no catalyst. The highest conversion was achieved with an Fe-lignite catalyst. The next most active was found to be 100% ZnC12. The latter produced a smaller amount of HC gas and significantly less sulphur in the product, and may therefore be considered more desirable.
A practical PID-based scheme for the collaborative driving of automated vehicles (2009)

For automated vehicles operated in platoons, it is important to see what information is necessary to be communicated between vehicles to ensure safety and performance in maneuvering, and how complicated the controllers are to be implemented. In this paper, we address the platoon problem by using the decentralized proportional, integral and derivative (PID) control approach for the applications of autonomous vehicles, which are modelled as an interconnected system in the form of the well known bicycle model. The control inputs for each vehicle are the traction force and steering angle. The practical collaborative driving approach consists of two main scenarios: the leader-follower platoon and the overtaking maneuver. Only the relative position and following angle between two adjacent vehicles are required for the controller design. Simulation results and dynamic visualization using virtual reality toolbox are demonstrated to show the effectiveness of the simple and practical approach.