gebhart/patrepeval huggingface dataset:
A theoretical formula for calculating damping in the impact of two bodies in a multibody system (1999)

Clearance often exists in the connections of machine parts and causes impact between the parts during machine operation. A spring damper element is usually applied to predict the impact loads acting on the parts. In this paper the impact process is modelled as a two-degrees-of-freedom vibrational system. Based on the assumption that the loss of kinetic energy of the two parts during impact should be absorbed by the damper in the spring damper element that is applied to describe the impact process, a theoretical formula for estimating damping by impact between two parts is derived for the first time. An example is given to show the application of the formula in dynamic simulation using a multibody simulation (MBS) program.
Rate 3/4 coded 16-QAM for uplink applications (1992)

First phase development of an advanced modulation technology which synergistically combines coding and modulation to achieve 2 bits per second per Hertz bandwidth efficiency in satellite demodulators is nearing completion. A proof-of-concept model is being developed to demonstrate technology feasibility, establish practical bandwidth efficiency limitations, and provide a data base for the design and development of engineering model satellite demodulators. The basic considerations leading to the choice of 4 x 4 quadrature amplitude modulation (16-QAM) and its associated coding format are discussed, along with the basic implementation of the carrier and clock recovery, automatic gain control, and decoding process. Preliminary performance results are presented. Spectra for the modulated signal shows the effects of the square root Nyquist filters in the modulation. Bit error rate (BER) results for the encoder/decoder subsystem show near ideal results, although power consumption is high and baseband BER performance of the Nyquist filter set is poor. Recommendations regarding the present system to improve BER performance and acquisition speed are given.
Poly-Functionalization of Polysiloxanes: New Industrial Opportunities (1998)

Polysiloxanes containing grafted and/or end-capped functional groups, due to their specific properties, receive attention in various industrial ap plications. This paper presents the synthesis and development of new poly functional silicones. For example, the grafting of selected organofunctional groups onto silicone backbones allows us to increase the hydrophobic-oleophobic perma nence or hydrophilic softness properties for textile treatments. To achieve these properties, new synthetic routes using novel organometallic catalysts and specific monomers have been developed.
Tunable delay lines using slow light for Gbit/s data signal (2008)

Optical tunable delay lines have many applications for high-performance optical switching and signal processing. Slowlight has emerged as an enabling technology for achieving continuously tunable optical delays. The reconfigurable delay opens up a whole new field of nonlinear signal processing using slow light. In this paper, we review recent advances in slow-light-based optical signal processing, with a focus on the data fidelity after traversing the slow light elements. The concept of slow-light-induced data-pattern dependence is introduced and is shown to be the main signal degrading effect. We then propose and experimentally demonstrate phase-preserving slow light by delaying 10-Gb/s differential-phaseshift- keying (DPSK) signals with reduced DPSK data pattern dependence. Spectrally-efficient slow light using advanced multi-level phase-modulated format is further described. With this technique, doubled or even tripled bit-rate signals can be transmitted through a bandwidth limited slow light element. We finally show several novel slow-light-based signal processing modules. Unique features such as multi-channel operation and variable bit-rate capability are highlighted.
In Situ Redispersion of Platinum Autoexhaust Catalysts: An On‐Line Approach to Increasing Catalyst Lifetimes? (2008)

Dynamic observation: The rapid oxidative redispersion of large Pt nanoparticles supported on ceria-based oxide in autoexhaust catalysts is demonstrated in the absence of Cl by in situ XANES analysis. An atomic migration model accounts for the observed redispersion through the trapping of Pt species at sites on the Ce support that exhibit strong interactions between the Pt oxide and the support. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
CARDWATCH: a neural network based database mining system for credit card fraud detection (2002)

CARDWATCH, a database mining system used for credit card fraud detection, is presented. The system is based on a neural network learning module, provides an interface to a variety of commercial databases and has a comfortable graphical user interface. Test results obtained for synthetically generated credit card data and an autoassociative neural network model show very successful fraud detection rates.
To the Editor (2016)

Portman, David J. MD; Archer, David F. MD; Martel, Céline PhD; Labrie, Fernand MD, PhD Author Information
Service-oriented process control for complex multifunctional plants: Concept and case study (2010)

In process control engineering, the multiple forms of the process control functionalities and the technological constraints of the programming languages are a significant obstacle for designing control logic which is integrated and comprehensive throughout the hierarchical control levels. Furthermore, the engineering phase requires a high degree of expert knowledge and effort. This article presents a conceptual approach for an integrated management of the distributed process control functionalities based on service orientation. The main advantage of this approach is that the fixed interconnections of the control logic are extended with a dynamic assignment of services. With a multifunctional Modular Electric Reducing Furnace as case study it is shown, that by using service-orientation, a reliable, flexible and scalable process control structure can be easily constructed.
Flow-Guided Attention Networks for Video-Based Person Re-Identification (2020)

Person Re-Identification (ReID) is an important problem in many video
analytics and surveillance applications,where a person's identity must be
associated across a distributed network of cameras. Video-based person ReID has
recently gained much interest because it can capture discriminant
spatio-temporal information that is unavailable for image-based ReID. Despite
recent advances, deep learning models for video ReID often fail to leverage
this information to improve the robustness of feature representations. In this
paper, the motion pattern of a person is explored as an additional cue for
ReID. In particular, two different flow-guided attention networks are proposed
for fusion with any 2D-CNN backbone, allowing to encode temporal information
along with spatial appearance information.Our first proposed network called
Gated Attention relies on optical flow to generate gated attention with
video-based feature that embed spatially. Hence the proposed framework allows
to activate a common set of salient features across multiple frames. In
contrast, our second network called Mutual Attention relies on the joint
attention between image and optical flow features. This enables spatial
attention between both sources of features, across motion and appearance cues.
Both methods introduce a feature aggregation method that produce video features
by identifying salient spatio-temporal information.Extensive experiments on two
challenging video datasets indicate that using the proposed flow-guided
spatio-temporal attention networks allows to improve recognition accuracy
considerably, outperforming state-of-the-art methods for video-based person
ReID. Additionally, our Mutual Attention network is able to process longer
frame sequences with a wider range of appearance variations for highly accurate
recognition.
Aerosol Synthesis and Characterization of Ultrafine Fullerene Particles (1998)

Abstract Aerosol routes were used to produce fullerene particles in the nanometer size range. Particle formation mechanisms at processing temperatures of 400-700°C were studied by measuring particle number and mass size distributions in the gas phase by a differential mobility analyzer and a low-pressure impactor respectively. Subsequently, the foils of the impactor onto which fullerene particles were collected were examined by HPLC.
A Novel Fabrication Method for Polycrystalline Silicon Thin-Film Transistors with a Self-Aligned Lightly Doped Drain Structure (1993)

We have developed a novel and simple fabrication method for poly-Si thin-film transistors (TFTs) with a self-aligned lightly doped drain (LDD) structure. The feature of this method is the use of lateral etching of an n + Si gate electrode to make an LDD region. The lateral etching is realized by plasma etching with SF 6 gas. It is found that the etching length in the lateral direction, which is equal to the LDD length, is proportional to the overetching time. Hence, the LDD length is controlled precisely by the overetching time. By applying the fabrication method to make poly-Si TFTs, we have succeeded in decreasing the OFF current by more than one order of magnitude without decreasing the ON current, compared with a conventional poly-Si TFT. It is concluded that our method has a tolerance sufficient to fabricate the LDD structure with a high ON/OFF current ratio.
1-Year pullout strength and degradation of ultrasound welded vs tapped craniomaxillofacial fixation screws (2022)

A knowledge on the pullout forces of degradable craniomaxillofacial screws is essential in designing pediatric cranial implants. Herein, four non-identical commercially available screws composed of different aliphatic polyesters were fixated to 3D-printed poly(l-lactide) screw hole test rig and onto a bone substitute material using manual tapping and ultrasonic welding fixation techniques. A method for mechanical testing was developed to determine and compare their quasi-static pullout strength. The degradation of the screws was followed for up to one year in three different degrading environments. While the screw size influences the initial pullout force, the degrading environment, size, and screw composition determine the degradation rate which in turn influences the pullout force over time. Given the limited availability of standard methods, the method developed herein can be used in determining the pullout forces of degradable craniomaxillofacial screws and comparing the effectiveness of various screw insertion techniques.
Quality of pathological reporting for renal cell cancer: implications for systemic therapy, prognostication and surveillance (2010)

• Current RCC pathology reporting fails to satisfy CAP guidelines, does not permit the use of prognostic systems, and may hinder enrollment into adjuvant trials and the selection of systemic therapy. Important reporting discrepancies exist between hospital types, with cancer centres performing best. • Quality improvement initiatives to encourage consistent, comprehensive and clinically relevant pathology reports would improve the quality of RCC patient care.
On-line sensing task optimization for shared sensors (2010)

Shared sensing infrastructures that allow multiple applications to share deployed sensors are emerging and Internet protocol based access for such sensors has already been prototyped and deployed. As a large number of applications start accessing shared sensors, the efficiency of resource usage at the embedded nodes and in the network infrastructure supporting them becomes a concern. To address this, we develop methods that detect when common data and common stream processing is requested by multiple applications, including cases where only some of the data is shared or only intermediate processing steps are common. The communication and processing is then modified to eliminate the redundancies. Specifically, we use an interval-cover graph to minimize communication redundancies and a joint data flow graph optimization to remove computational redundancies. Both methods operate online and allow application requests to be dynamically added or removed. The proposed methods are evaluated using applications on a road traffic sensing infrastructure.
Exploiting photosensitive As<inf>2</inf>S<inf>3</inf> chalcogenide glass in photonic integrated circuits (2012)

In this contribution we present a new and efficient technique for post-fabrication trimming of chalcogenide (ChG) based photonic integrated circuits (PICs). The technique exploits the high photosensitivity of As <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> S <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> glass to visible light radiation in order to induce a variation in the refractive index of the material, and therefore in the optical properties of ChG-based devices. The trimming technique enables not only to compensate for fabrication tolerances and restore desired functionalities, but also to provide a tool for the reconfiguration of photonic circuits. We demonstrate the trimming of PICs employing As <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> S <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> core waveguides and As <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> S <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> -assisted silicon waveguides. Finally, to further show the wide versatility of this approach, we apply the technique to trim the response of As <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> S <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> silicon waveguides covered with an additional polymer cladding layer, demonstrating simultaneous athermal operation and trimming functionality.
Electronmicroscopic Observation of Print-Out Effect on AgBr Microcrystals (1969)

By using silver bromide microcrystals obtained from a high sensitive photographic film emulsion, the effects of the intensity of light source and the temperature of the specimen on the print-out effect of the silver bromide crystals were studied electron-microscopically. As a result, it was found that with increasing the intensity of light source or with raising the temperature of the specimen the density of the pits decreased and well-defined tri-pyramidal pits began to appear on the surface of the grain. Although triangular patterns were observed frequently on the surface of the grain at room temperature for weak light illumination, they decreased in number and became large in size with increasing the intensity of light source or with raising the temperature of the specimen. The protrusion and whisker of silver also appeared on the grain at an elevated temperature due to light illumination. Experimental results obtained are discussed.
Supplementary Table 5 from TYK2–STAT1–BCL2 Pathway Dependence in T-cell Acute Lymphoblastic Leukemia (2023)

&lt;p&gt;XLSX file - 14291K, TYK2 genotype in 17 T-ALL cell lines.&lt;/p&gt;
Biodiesel exhaust–induced cytotoxicity and proinflammatory mediator production in human airway epithelial cells (2014)

Increasing use of biodiesel has prompted research into the potential health effects of biodiesel exhaust exposure. Few studies directly compare the health consequences of mineral diesel, biodiesel, or blend exhaust exposures. Here, we exposed human epithelial cell cultures to diluted exhaust generated by the combustion of Australian ultralow-sulfur-diesel (ULSD), unprocessed canola oil, 100% canola biodiesel (B100), and a blend of 20% canola biodiesel mixed with 80% ULSD. The physicochemical characteristics of the exhaust were assessed and we compared cellular viability, apoptosis, and levels of interleukin (IL)-6, IL-8, and Regulated on Activation, Normal T cell Expressed and Secreted (RANTES) in exposed cultured cells. Different fuel types produced significantly different amounts of exhaust gases and different particle characteristics. All exposures resulted in significant apoptosis and loss of viability when compared with control, with an increasing proportion of biodiesel being correlated with a decrease in viability. In most cases, exposure to exhaust resulted in an increase in mediator production, with the greatest increases most often in response to B100. Exposure to pure canola oil (PCO) exhaust did not increase mediator production, but resulted in a significant decrease in IL-8 and RANTES in some cases. Our results show that canola biodiesel exhaust exposure elicits inflammation and reduces viability of human epithelial cell cultures in vitro when compared with ULSD exhaust exposure. This may be related to an increase in particle surface area and number in B100 exhaust when compared with ULSD exhaust. Exposure to PCO exhaust elicited the greatest loss of cellular viability, but virtually no inflammatory response, likely due to an overall increase in average particle size.
FM. Avaliação do efeito antimicrobiano e antiinflamatório de derivados furoxânicos e benzofuroxânicos como alternativa para o tratamento da acne vulgar (2017)

Introducao: A acne e uma das dermatoses mais frequentes no mundo, atingindo cerca de 80% da populacao, principalmente adolescentes e adultos jovens. Deste grupo, entre 15 a 30% dos individuos apresentam sintomas moderados a graves e requerem tratamento medicamentoso via oral. Na puberdade, em resposta a secrecao de glândulas sebaceas estimulada pelos hormonios, a taxa lipofilica aumenta e alguns difteroides como o Propionibacterium, que sao tipicamente anaerobios, se tornam mais proeminentes sobre a pele, habitando os foliculos pilosos. O crescimento destes difteroides ocorre nas glândulas sebaceas e e um fator de desenvolvimento da acne. O P. acnes regula positivamente a secrecao de diferentes citocinas pro-inflamatorias por queratinocitos humanos, sebocitos ou macrofagos, sendo que a interleucina 1 (IL-1β) promove a formacao do comedao e o P. acnes estimula a secrecao da IL-1β pelos queratinocitos. Objetivo: Este trabalho visa avaliar in vitro os efeitos antimicrobianos e antiinflamatorios de derivados sinteticos furoxânicos e benzofuroxânicos que possam se constituir como alternativa para o tratamento da acne vulgar. Metodologia: Para os ensaios microbiologicos foram utilizadas cepas bacterianas gram-positivas e gram-negativas, cinco cepas diferentes do genero Candida e duas cepas fungicas leveduriformes do genero Cryptococcus. O ensaio de doacao de oxido nitrico foi realizado pelo metodo de Griess. O ensaio da atividade antiinflamatoria foi realizado atraves da quantificacao de citocinas utilizando ELISA de captura . Resultados e discussao: Vinte compostos pertencentes a biblioteca de compostos do Lapdesf (Laboratorio de Pesquisa e Desenvolvimento de Farmacos) foram avaliados inicialmente contra as cepas dos microorganismos escolhidos, sendo o composto 15 o mais ativo contra o P. Acnes, apresentando CIM no valor de 0,2 µg/mL. O ensaio de doacao de oxido nitrico foi realizado apenas com o composto 15, o qual foi capaz de doar 20,1%, sendo este valor duas vezes maior que o controle utilizado (DNS : 9,95%). Em relacao a atividade antiinflamatoria, o composto 15 nao foi capaz de inibir a producao das citocinas IL-1β e nem o TNF-α. Conclusao: Neste trabalho, verificamos que o composto (E)-4-(4-((2-(3-hidroxibenzoil)hidrazona)metil)fenoxi)-3-(fenilsulfonil)-1,2,5-oxadiazol 2-oxido (composto 15) pode vir a ser um potente antimicrobiano eficaz no tratamento da acne vulgar, uma vez que foi capaz de inibir o crescimento do microrganismo na concentracao de 0,2μg/mL. Este efeito antimicrobiano verificado parece estar relacionado em partes a capacidade desses compostos em aumentar as especies radicalares, causando assim, aumento do estresse oxidativo no microrganismo.
Premature Creep Rupture and Overestimation of Rupture Life in Modified 9Cr–1Mo Steel (2010)

Creep rupture life in the time range of 105 h and longer has been evaluated on the basis of creep rupture data available on modified 9Cr–1Mo (Gr.91) steel. The steel is strengthened by a tempered martensite lath structure, which degrades by means of strain induced recovery in short-term creep (Region H). The degradation leads to creep rupture. In long-term creep (Region L), static recovery of the martensite lath structure takes place in addition to the strain induced recovery, resulting in premature creep rupture and the consequent decrease in stress exponent n for rupture life. The premature creep rupture always occurs in Gr.91 steel, but the activation energy QL for rupture life in region L is usually close to the value QH in Region H in the steel. In such a case, long-term rupture life can be predicted correctly by simple extrapolation of short-term data. In some heats of Gr.91 steel, however, another region with low values of n and Q, namely Region L2, appears in the time range longer than 104 h. Simple extrapolation of short-term data results in overestimation of rupture life in Region L2. The static recovery and the consequent premature creep rupture are controlled by migration of sub-boundaries stabilized by precipitates. M23C6 as well as MX precipitates in Gr.91 steel have higher thermal stability than those in other high Cr ferritic steels, resulting in the later appearance or absence of Regions L and L2 in the steel.
Living anionic polymerization of lauryl methacrylate and synthesis of block copolymers with methyl methacrylate (2004)

Abstract Anionic polymerization of lauryl methacrylate (LMA) with 1,1‐diphenylhexyl lithium in tetrahydrofuran (THF) at −40 °C resulted in a multimodal and broad molecular weight distribution (MWD) with poor initiator efficiency. In the presence of additives such as dilithium salt of triethylene glycol (G 3 Li 2 ), LiCl, and LiClO 4 , the polymerization resulted in polymers with a narrow MWD (≤ 1.10). Diblock copolymers of methyl methacrylate (MMA) and LMA were synthesized by anionic polymerization using DPHLi as initiator in THF at −40 °C with the sequential addition of monomers. The molecular weight distribution of the polymers was narrow and without homopolymer contamination when LMA was added to living PMMA chain ends. Diblock copolymers with broad/bimodal MWD were obtained with a reverse‐sequence monomer addition. © 2004 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 875–882, 2004