gebhart/patrepeval huggingface dataset:
Sentiment Analysis on Speaker Specific Speech Data (2018)

Sentiment analysis has evolved over past few decades, most of the work in it revolved around textual sentiment analysis with text mining techniques. But audio sentiment analysis is still in a nascent stage in the research community. In this proposed research, we perform sentiment analysis on speaker discriminated speech transcripts to detect the emotions of the individual speakers involved in the conversation. We analyzed different techniques to perform speaker discrimination and sentiment analysis to find efficient algorithms to perform this task.
Engineering and Application of Zinc Finger Proteins and TALEs for Biomedical Research (2017)

Engineered DNA-binding domains provide a powerful technology for numerous biomedical studies due to their ability to recognize specific DNA sequences. Zinc fingers (ZF) are one of the most common DNA-binding domains and have been extensively studied for a variety of applications, such as gene regulation, genome engineering and diagnostics. Another novel DNA-binding domain known as a transcriptional activator-like effector (TALE) has been more recently discovered, which has a previously undescribed DNA-binding mode. Due to their modular architecture and flexibility, TALEs have been rapidly developed into artificial gene targeting reagents. Here, we describe the methods used to design these DNA-binding proteins and their key applications in biomedical research.
Absorbable Materials in Orthopaedic Surgery (1991)

The most important surgical biodegradable polymers are aliphatic polyesters of -hydroxy acid derivates. Implants made of these polymers that are currently used include sutures and fiber constructions, porous composites and drug delivery system and partially or totally biodegradable devices. Development and experimental and clinical use of absorbable devices in the fixation of fractures or osteotomies are presented. The clinical experience is based on 1,300 operated patients. The results in the fixation of cancellous bone fractures or osteotomies with absorbable implants are comparable to those of metallic implants but there is no need for removal procedures as with metallic osteosyntheses. This substantially benefits the individual as well as save money.
Melting process and the equilibrium melting temperature of polychlorotrifluoroethylene (1962)

A new method of estimating the equilibrium melting temperature, T(m), of a polymer is described, and applied to polychlorotrifluoroethylene (PCTFE). Experimentally determined values of the so-called observed melting point, [Formula: see text] , are plotted as a function of the isothermal crystallization temperature, T(x). When freed of secondary effects, such as recrystallization, the data fit a straight line of positive slope on a [Formula: see text] versus T(x) plot, T(x) being the abscissa. This line is then extrapolated to its intersection with the line [Formula: see text]. The temperature at this intersection is T(m). This intersection is at 224 °C for PCTFE, and T(m) is quoted as 224 ± 1 °C. (The highest melting point actually attained for a specimen was 218.2 °C.) The value of T(m) estimated using the extrapolation procedure is compared with that estimated using the customary method of slow stepwise warming. A theoretical justification is given for making the type of plot mentioned above. The most important assumption used in the theory is that one of the dimensions of the growing crystal retains a value rather close to that of the appropriate growth nucleus during an isothermal crystallization, the other two dimensions being large in comparison. Combination of this with the fact that the relevant dimension of the growth nucleus will vary as the reciprocal of the degree of supercooling leads to the prediction of melting points that increase linearly with crystallization temperature. The assumption that one of the dimensions of the crystal retains a value fairly close to that of a growth nucleus can readily be justified on the basis of polymer crystal growth with chain folds. Its justification in the case of the customary bundlelike mode of crystallization is less clear. It is demonstrated experimentally that even the largest detectible crystals in PCTFE are only about 70 percent thicker than a primary nucleus, when secondary effects are minimized. The application of the theory to systems other than PCTFE is discussed briefly, and some preliminary measurements on polyethylene mentioned. Some points relating to the shape of the melting curves of highly crystalline polymers are also brought out.
Localization of the bioadhesive precursors of the sandcastle worm, <i>Phragmatopoma californica</i> (Fewkes) (2011)

The marine sandcastle worm bonds mineral particles together into underwater composite dwellings with a proteinaceous glue. The products of at least four distinct secretory cell types are co-secreted from the building organ to form the glue. Prominent hetereogeneous granules contain dense sub-granules of Mg and the (polyphospho)proteins Pc3A and B, as well as at least two polybasic proteins, Pc1 and Pc4, as revealed by immunolabeling with specific antibodies against synthetic peptides. Equally prominent homogeneous granules comprise at least two polybasic proteins, Pc2 and Pc5, localized by immunolabeling with anti-synthetic peptide antibodies. The components of the sub-micrometer granule types are unknown, though positive staining with a redox-sensitive dye suggests the contents include o-dihydroxy-phenylalanine (dopa). Quantitative PCR and in situ hybridization demonstrated that a tyrosinase-like enzyme with a signal peptide was highly expressed in both the heterogeneous and homogeneous granules. The contents of the granules are poorly mixed in the secreted mixture that forms the glue. Subsequent covalent cross-linking of the glue may be catalyzed by the co-secreted tyrosinase. The first three parapodia of the sandcastle worm also contain at least two distinct secretory tissues. The Pc4 protein was immunolocalized to the anterior secretory cells and the tryosinase-like gene was expressed in the posterior secretory cells, which suggests these proteins may have multiple roles.
Matched filter code acquisition of burst and continuous pilot signal in Doppler shift (2002)

This paper introduces analytical results for code acquisition of a DS spread spectrum system in which either continuous pilot (CP) or burst pilot (BP) is used. Emphasis is in the performance and restrictions of Doppler shift, which is taken into account as signal-to-noise decreases. The performance measure is the mean acquisition time. Constant false alarm rate criteria are used as threshold setting rules for comparison. Numerical results indicate that the burst pilot method outperforms the continuous pilot method significantly when the average transmitter power is kept the same.
Grouping WI-MAX, 3G and WI-FI for Wireless Broadband (2006)

Many advanced data services are driving up wireless technology, which is further boosted by growth in advanced market segments. The wireless industry is evolving from a Web of independent networks into a single integrated network with multiple standards; the expectation is that WI-FI, WI-MAX and 3G will coexist to enable a host of exerting new applications and business models. This paper focuses on concepts of WI-MAX technology, which employs microwave for the transfer of data wirelessly, and it also presents its comparison with WI-FI, and 3G technologies. WI-MAX is delivering broadband wireless access to the masses and represents alternative to digital subscriber lines (DSL) and cable broadband access. WI-MAX is based on IEEE 802.16 standard and is scalable. It stands for wireless (WI) microwave access (MAX). WI-MAX will provide anywhere, anytime connectivity. Features of WI-MAX are OFDM i.e. orthogonal frequency division multiplexing, sub channelization, directional antennas and adaptive modulation, which make WI-MAX as the technology of today. The Benefit of WI-MAX technology is that the signals can be run very close to each other on wireless channels. Super narrow lanes can put a lot of traffic over them without disturbance. Many technologies currently available can only provide line of sight (LOS) coverage; the technology behind WI-MAX has been optimized to provide excelled non-line of sight (NLOS) coverage.
An Iterative PPPM Method for Simulating Coulombic Systems on Distributed Memory Parallel Computers (1998)

Abstract We describe results obtained from a new implementation of Hockney's Particle-Particle Particle-Mesh (PPPM) method for evaluation of Coulomb energies and forces in simulations of charged particles. Rather than taking the usual approach, solving Poisson's equation by means of a Fourier transformation, we use an iterative Poisson solver. In a molecular dynamics (MD) simulation the solution from the previous time-step provides a good starting point for the next solution. This reduces the number of iterations per time-step to acceptable values. The iterative scheme has a complexity O(N), and, in contrast with the Fourier transform based approach, it is easily implemented on a parallel architecture with a minimum of communication overhead. We examine the origin of the errors in the algorithm and find that reasonable accuracies in the Coulomb interaction can best be attained by making the charge density profile as smooth as possible. This involves spreading the particle charges over a large number of grid points. Assigning these charges then becomes the most time consuming part of the algorithm. We show how we can then gain a considerable saving in computing time by employing a diffusion equation as a charge spreading mechanism. The effect of employing the algorithm with an accuracy less than that typically tolerated in an Ewald summation is studied by computing, from an MD simulation of silica, quantities that are sensitive to the long range part of the Coulomb interaction. These results are compared to full Ewald sum reference simulations and found to be within the statistical error. Key Words: Particle-particle particle-meshCoulomb interactionelectrostatic interactionparallel algorithmsmolecular simulation
Application of the neural network to detecting corona discharge occurring in power cables (2002)

A system of detecting corona discharges automatically with an artificial neural network is examined and a network which can distinguish between corona and noise patterns occurring in power cables is investigated. A feedforward type of a neural network with three layers, i.e. input, hidden and output layers is used. It is found that the network which learns only corona and no noise patterns does not show a good performance. This means that the network should learn both corona and noise patterns even for recognizing only corona discharges. The network which uses frequency spectra of waveforms obtained by a fast Fourier transform (FFT) method as input patterns is also investigated. The network with FFT pretreatment is found to show better performance than the one without FFT pretreatment.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Design Tradeoffs between Stator Core Loss and Torque Ripple in IPM Machines (2008)

High stator core losses can pose a significant problem in IPM machines operating over wide constant-power speed ranges. At lower speeds, the torque ripple can be undesirably large in some IPM machine designs, contributing to acoustic noise and vibration. While previous work has addressed these two problems independently, this paper shows that the conditions for reducing stator core losses during flux-weakening operation, dominated by harmonic eddy-current losses in the stator teeth, can conflict with the conditions for reducing the torque ripple of IPM machines. It is also shown that the resulting design tradeoffs depend on the details of the IPM machine topologies that are under consideration. The appropriate IPM machine topologies that offer more favorable tradeoffs are identified in order to achieve the best possible compromise of high-speed stator core losses and torque ripple characteristics.
Acrylic AB and ABA Block Copolymers Based on Poly(2-ethylhexyl acrylate) (PEHA) and Poly(methyl methacrylate) (PMMA) via ATRP (2012)

Acrylic block copolymers have several advantages over conventional styrenic block copolymers, because of the presence of a saturated backbone and polar pendant groups. This investigation reports the preparation and characterization of di- and triblock copolymers (AB and ABA types) of 2-ethylhexyl acrylate (EHA) and methyl methacrylate (MMA) via atom transfer radical polymerization (ATRP). A series of block copolymers, PEHA-block-PMMA(AB diblock) and PMMA-block-PEHA-block-PMMA(ABA triblock) were prepared via ATRP at 90 °C using CuBr as catalyst in combination with N,N,N',N″,N″-pentamethyl diethylenetriamine (PMDETA) as ligand and acetone as additive. The chemical structure of the macroinitiators and molar composition of block copolymers were characterized by (1)H NMR analysis, and molecular weights of the polymers were analyzed by GPC analysis. DSC analysis showed two glass transition temperatures (T(g)), indicating formation of two domains, which was corroborated by AFM analysis. Small-angle X-ray scattering (SAXS) analysis of AB and ABA block copolymers showed scattering behavior inside the measuring limits indicating nanophase separation. However, SAXS pattern of AB diblock copolymers indicated general phase separation only, whereas for ABA triblock copolymer an ordered or mixed morphology could be deduced, which is assumed to be the reason for the better mechanical properties achieved with ABA block copolymers than with the AB analogues.
Indefinite Survival of Rat Islet Allografts following Infusion of Donor Bone Marrow without Cytoablation (1996)

We have tested the effect of donor bone marrow cell (DBMC) infusion on the survival of pancreatic islet allografts in the rat, without the use of cytoablative recipient conditioning. Lewis and diabetic Brown Norway rats were used as donors and recipients, respectively. Donor islets were placed beneath the left renal capsule. Infusion of DBMC and temporary immunosuppression followed by delayed islet transplantation resulted in indefinite survival of all islet grafts (MST >180 days). Control animals demonstrated recurrent hyperglycemia (islet allografts rejection). Donor bone marrow derived cells were detected in the spleen and cervical lymph nodes of BN recipients of LEW bone marrow but not in the recipients of islet transplants alone. Second set full thickness skin grafts were performed in normal BN and in recipients of a previously successful ITX. Donor specific skin grafts were accepted in the animals that had received DBMC 40 days before the islet allograft, while animals receiving DBMC at the time of the islet allograft rejected the donor specific skin graft similarly to the controls. However, these animals did not reject a second set donor-specific islet transplant. The results indicate that radiation conditioning of the recipients was not necessary to induce microchimerism and graft acceptance in this rodent model of islet allotransplantation.
Fly-By-Wireless for next generation aircraft: Challenges and potential solutions (2012)

“Fly-By-Wireless” paradigm based on wireless connectivity in aircraft has the potential to improve efficiency and flexibility, while reducing weight, fuel consumption and maintenance costs. In this paper, first, the opportunities and challenges for wireless technologies in safety-critical avionics context are discussed. Then, the assessment of such technologies versus avionics requirements is provided in order to select the most appropriate one for a wireless aircraft application. As a result, the design of a Wireless Avionics Network based on Ultra WideBand technology is investigated, considering the issues of determinism, reliability and security.
Performance Impact of Using Denormalized Numbers in Basic Floating-point Operations (2007)

Manipulation of denormalized numbers in circuits for floating-point operations comes at a reasonable cost. IEEE standard 754 defines the use of denormalized values. They are incorporated into high-performance CPUs and they are gaining space in commercial products. This paper describes the extra processing steps that are required for the manipulation of denormalized numbers in floating-point addition and floating-point multiplication. It also provides the results of several experiments that show the average additional cost that designers face when creating these basic operations using cell libraries, for some CMOS technologies.
The Frequency Dependent Permittivity and AC Conductivity of Random Electrical Networks (2005)

It has been shown that the universal dielectric response (UDR) of heterogeneous materials can be reproduced by electrical networks consisting of randomly positioned resistor and capacitors. The random network represents a microstructure that contains both insulating (the capacitor) and conductive regions (the resistor). This paper presents an investigation into the frequency dependent properties of large numbers of resistor-capacitor (R-C) networks. Parameters investigated include permittivity, conductivity and phase angle, with particular emphasis on observed power-law behavior and a comparison with previous work in this area.
Combining encryption methods in multipurpose smart card (2012)

Smart cards have many applications such as health, ID verification and access control, electronic purse card, banking card, payphone card, passport card and license card. Since, there are many kinds of smart cards, it is difficult to carry and protect them. Losing one card means losing a lot of important information. So in this paper proposes to combine some important cards such as: health, passport and credit system in one multipurpose smart card and find an encryption method to make it enough secure. It should also be efficient in transferring information. It means, we develop an effective encryption system for these three applications in a multipurpose smart card and we propose an optimized encryption system for the applications.
Oligothymidylates Comportant La Structure Alternee Alkylphosphotriester-Phosphodiester Et Lies De Facon Covalente A Un Agent Intercalant (1986)

Abstract Four oligothymidylates involving alternating alkylphosphotriester-phosphodiester backbones with the same steric configuration for all the phosphotriester groups [(Tp(R)Tp)2(CH2)5Acr 2bα; 2bβ (R = Et); cα, 2cβ (R = Me3C—CH2)] have been synthesized by the phosphotriester method in solution from each pure α and β isomers of the ethylated 5b or neopentylated 5c dinucleoside. This partial esterification of the phosphate groups stabilizes the nucleic acid chain against nucleolytic attack by P 1 and S 1 nucleases. This effect increases with the size of the alkyl groups. It also depends upon the steric configuration of the alkylphosphotriester groups: the β isomers are more resistant to S 1 nuclease than the a isomers. Tetrathymidylates bearing two “neopentyl” groups (Tp(CH,CMe3)Tp)2 (CH2)5Acr 2cα and 2cβ give specific complexes with poly r(A) and the β isomer 2c binds a little stronger than the tetrahymidylate (Tp)n (CH2)5 Acr. The neopentyl group is stable under the conditions required for the synthesis of oligodeoxynucleotides involving the four nucleic acid bases. It can be used for the partial esterification of the phosphodiester groups. Quatre oligothymidylates comportant la structure alternée alkyl-phosphotriester-phosphodiester et dont tous les groupes alkylphosphotriesters possèdent la měme configuration stérique [(Tp(R)Tp)2 (CH2)5 Acr, 2bα 2bβ (R = Et); 2cα, 2Cβ (R = Me,C—CH2)] ont été synthétisés selon la méthode au phosphotriester en solution à partir de chacun des isomères a et β du dinucleéoide éthylé 5b ou néopentylé 5c. Cette estérification partielle des groupes phosphates augmente la stabilité de la cha[icaron]ne nucléotidique vis-à-vis de l'action des nucléases. Cet effet stabilisateur augmente avec la taille du groupe alkyle (en présence des endonucléases P 1 et S 1) et depend de la configuration stirique des groupes alkylphosphotriesters (en présence de S 1 les isomères β sont plus résistants que les isomères α). Les tétrathymidylates porteurs de deux groupes néopentyle (Tp(CH2CMe3)Tp)2(CH2),Acr 2cα et 2cβ forment des complexes spécifiques avec l'acide polyriboadinylique; le complexe formé à partir de l'isomere 2cβ est légèrement plus stable que celui formé a partir du tètrathymidylate (Tp)4(CH2)5Acr. Le groupe néopentyl est stable dans les conditions de synthèse des oligodéoxynucliotides comportant les quatre bases nucléiques; il peut donc ětre utilisé pour estérifier partiellement les groupes phosphodiesters.
Development of rosuvastatin flexible lipid-based nanoparticles: promising nanocarriers for improving intestinal cells cytotoxicity (2020)

RSV loaded chitosomes nano-formulation could be considered as a promising nanocarrier system with a marked cytotoxic activity while, RSV loaded liposomal NPs are suitable nanocarrier to improve RSV activity in treatment of cardiovascular disorders.
Membrane-controlled digestion: anaerobic production of methane and organic acids (1980)

The objectives of this research were to determine the conditions under which acetic acid can be produced, and then to optimize the production of acetate in a membrane-controlled anaerobic digester. In order to further advance the membrane technique reported earlier, two continuous ultrafiltration studies were performed. A first, non-steady-state run was performed wherein the amount of glucose fed to a membrane-controlled digester system was increased daily over a 19-day span. Once the optimal conditions could be estimated from this first series, a second study was performed at the indicated optimal rate of feed to determine whether a high and constant level of acetate production could be maintained.
Sector Spin Coating for Fast Preparation of Polymer Libraries (2005)

The feasibility of sector spin coating (or combinatorial spin-coating) is demonstrated (i.e., spin coating of various samples onto one single substrate using a metal template to divide the substrate into sectors). Film thickness increases in an angular direction against the sense of rotation. In the radial direction, the film thickness is constant within 2%. A library of 8 poly(methyl methacrylate)/polystyrene-blends with varying composition was spin coated and subsequently analyzed using automated atomic force microscopy: 24 measurements could be performed within 72 min. The contact angles of a library of 16 polyoxazoline diblock copolymers were measured using one substrate with 16 spin-coated sectors. Forty-eight measurements could be performed within 50 min. On the basis of the surface energies calculated using the Owens-Wendt-Rath-Kaeble method, the library can be divided into three groups of polymers: those containing a dispersive nonyloxazoline block, those containing a polar phenyloxazoline block, and those containing neither.