gebhart/patrepeval huggingface dataset:
Well-defined donor–acceptor rod–coil diblock copolymers based on P3HT containing C60: the morphology and role as a surfactant in bulk-heterojunction solar cells (2009)

The synthesis of well-defined rod–coil block copolymers consisting of P3HT donor and C60 acceptor chromophores (P3HT-b-P(SxAy)-C60) in a molecular architecture is reported for use in bulk-heterojunction (BHJ) solar cells. In thin films of the resulting block copolymer, reproducible self-assembly into well-defined “nanofibrils” is observed. This is the first example of a block copolymer containing a C60 derivative that shows exclusively a nanofibrilar structure. We have investigated the potential utility of the block copolymer as a “surfactant” for controlling the interface morphology of the P3HT:PCBM donor–acceptor phase domains within the composite. We find a substantial improvement in device performance when 5% of block copolymer are introduced to the P3HT:PCBM blend system, resulting in ca. 35% improved efficiency relative to the P3HT:PCBM solar cell fabricated without the “surfactant”.
Temperature Compensated Single Detector Fiber Optic Current Sensor (1996)

Presented is detailed information concerning the design of single detector fiber optic current sensors. Data is provided describing a novel passive technique used to compensate for the temperature induced Verdet constant changes in the sensing fiber.
Direct Synthesis of Aluminosilicate SSZ-39 Zeolite Using Colloidal Silica as a Starting Source (2019)

For the first time, SSZ-39 zeolite has been directly prepared using conventional colloidal silica and sodium aluminate instead of using FAU zeolite as the raw material in the alkaline media. The adjustment of the Si/Al ratios in the starting materials to the suitable values is a key factor to prepare the aluminosilicate SSZ-39 zeolite. Various characterizations (for instance, X-ray diffraction, scanning electron microscopy, nitrogen sorption, solid <sup>27</sup>Al NMR, and NH<sub>3</sub>-temperature-programmed desorption) display that the aluminosilicate SSZ-39 zeolite owns high crystallinity, uniform cuboid morphology, large surface area, four-coordinated aluminum species, and strong acidic sites. Inductively coupled plasma analysis shows that the SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratios of the SSZ-39 products are ranged from 12.8 to 16.8. Considering the special framework of the SSZ-39 zeolite, the yield of this synthesis is not higher than 21.3%. Moreover, the catalytic performance of Cu-SSZ-39 catalyst synthesized from this route is excellent in the selective catalytic reduction of NO <sub>x</sub> with NH<sub>3</sub> (NH<sub>3</sub>-SCR).
A Compact Physics Package of a Chip-Scale Atomic Clock with a Built-in Magnetic Shield (2019)

We demonstrate a physics package for chip-scale atomic clocks in which the supporting frame itself serves as a primitive magnetic shield (∼20x attenuation). It measures 4.9×4.9×4.5 mm3 with its frequency instability ∼ 10−10 at 1 s.
Preparation of 1,3‐selenazoles using selenazadienes (2005)

Abstract Reactions of selenazadienes with chloroacetonitrile yielded 1,3‐selenazol‐5‐carbonitriles in moderate to high yields. Reactions of the selenazadienes with chloroacetyl chloride and then with amines gave 1,3‐sele‐nazole‐5‐carboxamides.
Polyimide Membranes Derived from Poly(amic acid) Salt Precursor Polymers. 2. Composite Membrane Preparation (2001)

A novel two-step process for fabrication of composite polyimide hollow fiber membranes using poly(amic acid) tertiary amine salts, PAAS, is described. In the first step, a precursor membrane is formed by depositing a thin PAAS polymer layer from an alcohol-based solution onto a porous hollow fiber substrate. In the second step, the final composite polyimide membrane is obtained upon thermal treatment of the precursor composite PAAS membrane at 150 °C. The novel process was demonstrated by preparing a composite polyimide membrane on a polysulfone hollow fiber substrate from the PAAS polymer (6FDA-ODA/Et3N) derived from 2,2-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA), 4,4‘-oxydianiline (ODA), and triethylamine. The surface layer and cross section of the precursor composite PAAS membrane and the final polyimide membrane were studied by SEM. The quantitative transformation of PAAS prepolymer into the respective polyimide by heat treatment at 150 °C was confirmed by ATR FT-IR analyses. Gas permeation characteristics of composite PAAS and polyimide membranes were measured and are reported.
Hydrogen, Calcium, and Potassium Ion-Sensitive FET Transducers: A Preliminary Report (1978)

The application of integrated circuit technology to the field of physiological data acquisition may produce a significant impact on patient monitoring, diagnosis and therapeutic medical decisions. Biomedical sensors based on IC technology have several potential advantages not available in present biomedical sensors. These include small size, reliability, rapid time response, multi-sensor chip, and onchip signal processing to achieve high to low impedance transformation, temperature compensation, signal multiplexing, etc.
Three-terminal III–V/Si tandem solar cells enabled by a transparent conductive adhesive (2019)

Three-terminal tandem solar cell with conductive adhesive interconnect and back-contacted bottom cell delivers 27.3% efficiency.
A Gabor feature classifier for face recognition (2002)

This paper describes a novel Gabor feature classifier (GFC) method for face recognition. The GFC method employs an enhanced Fisher discrimination model on an augmented Gabor feature vector, which is derived from the Gabor wavelet transformation of face images. The Gabor wavelets, whose kernels are similar to the 2D receptive field profiles of the mammalian cortical simple cells, exhibit desirable characteristics of spatial locality and orientation selectivity. As a result, the Gabor transformed face images produce salient local and discriminating features that are suitable for face recognition. The feasibility of the new GFC method has been successfully tested on face recognition using 600 FERET frontal face images, which involve different illumination and varied facial expressions of 200 subjects. The effectiveness of the novel GFC method is shown in terms of both absolute performance indices and comparative performance against some popular face recognition schemes such as the eigenfaces method and some other Gabor wavelet based classification methods. In particular, the novel GFC method achieves 100% recognition accuracy using only 62 features.
Cladding-pumped passively mode-locked fiber laser generating femtosecond and picosecond pulses (1996)

Passively mode-locked fiber lasers cladding pumped by broad-area diode-laser arrays are described. With a dispersion-compenstated erbium-ytterbium fiber oscillator, 200-fs pulses with pulse energies up to 100 pJ are generated at a wavelength of 1560 nm. In a highly dispersive cavity, pulse widths of 3 ps with pulse energies up to 1 nJ are obtained. A saturable absorber is used for pulse startup, whereas nonlinear polarization evolution is exploited for steady-state pulse shaping. An environmentally stable design is ensured by use of a compensation scheme for linear polarization drifts in the cavity.
The Use of Second-Trimester Genetic Sonogram in Guiding Clinical Management of Patients at Increased Risk for Fetal Trisomy 21 (1996)

Second-trimester genetic sonogram may be a reasonable alternative for patients at increased risk for fetal trisomy 21 who wish to avoid amniocentesis. In experienced hands, this approach may result in a high detection rate of trisomy 21 (93%), with an amniocentesis rate of less than 20%.
Noncryopreserved Bone Marrow Storage in STM-Sav, an Infusible-Grade Cell Storage Solution (2002)

Liquid storage of hematopoietic stem and progenitor cells often is necessary in clinical cell engineering. The interval between cell harvest and transplantation or processing may be as long as 1 or 2 days. We previously developed an infusible-grade solution, STM-Sav, for nonfrozen storage of peripheral blood stem cells. This study addresses the validation of the storage conditions using STM-Sav for the short-term storage of bone marrow. Bone marrow from normal donors was stored in STM-Sav in gas-permeable Cryocyte and plasma transfer bags at 4°C and room temperature. Cell viability, number, and morphology, percentage of CD34+ cells, frequency of granulocyte/macrophage colony-forming units (CFU-GM), and solution pH were measured every 24 h for up to 72 h. More than 88% of viable nucleated cell recovery was observed at 72 h of liquid storage. CD34+ cell recoveries were unchanged over the 72-h storage period as well, and the frequency of CFU-GM per 105 cells was also constant. The regulation of solution pH was improved with storage of the cells at 4°C in a plasma transfer bag. These results indicate that STM-Sav can be effective in preserving bone marrow viability over a 72-h period during liquid storage.
Design and fabrication of a mode rectangular X-cut quartz resonator with zero temperature coefficient (2006)

Rectangular X-cut quartz crystal resonators with cut angles theta > 5.0 degrees and aspect ratios Rzy (= width 2z0/length 2y0) from 0.3 to 0.5 are investigated. The resonators oscillate mode is a length-extensional mode. A semiempirical frequency equation was derived from the stress expressed in terms of the trigonometric and the hyperbolic transcendental functions with constants estimated by the regression curve fit to the stress simulated by the finite-element method (FEM). Contours on which a point satisfies a zero first order temperature coefficient condition are shown in a cut angle theta and Rzy diagram. We proved that a fabricated resonator with Rzy = 0.400 and theta = 16.0 degrees, whose design parameter is located in the area of the contour, had a zero temperature coefficient.
Targeting the OB‐Folds of Replication Protein A with Small Molecules (2010)

Replication protein A (RPA) is the main eukaryotic single-strand (ss) DNA-binding protein involved in DNA replication and repair. We have identified and developed two classes of small molecule inhibitors (SMIs) that show in vitro inhibition of the RPA-DNA interaction. We present further characterization of these SMIs with respect to their target binding, mechanism of action, and specificity. Both reversible and irreversible modes of inhibition are observed for the different classes of SMIs with one class found to specifically interact with DNA-binding domains A and B (DBD-A/B) of RPA. In comparison with other oligonucleotide/oligosaccharide binding-fold (OB-fold) containing ssDNA-binding proteins, one class of SMIs displayed specificity for the RPA protein. Together these data demonstrate that the specific targeting of a protein-DNA interaction can be exploited towards interrogating the cellular activity of RPA as well as increasing the efficacy of DNA-damaging chemotherapeutics used in cancer treatment.
An Innovative Low Density Synthetic Carbonate with a Composite Structure (2014)

A new low density mineral material has been synthesized via a simple, flexible, cheap and easy to control process. This material is a synthetic carbonate produced by carbonation of a solid phase composed of a calcic part and a magnesian part. Typically, its production process includes the calcination of a raw dolomite (general formula CaCO 3 .MgCO 3 ) into the oxide form, followed by an at least partial hydration of this oxide and a subsequent carbonation step. This process is thus close to the well-known process used for the production of Precipitated Calcium Carbonate (PCC), a common filler and pigment in plastic, paper and rubber, except that the raw material is a dolomite instead of a limestone. It has to be pointed out that flue gases from different industries can be used as a source of CO 2 for the carbonation. Many parameters have been studied, such as the hydration conditions or the carbonation conditions, allowing the production of a whole range of products. The products obtained via this process are composed of a calcic part, mainly as calcite and aragonite (CaCO 3 ), and a magnesium containing part, mainly as hydromagnesite (4MgCO 3 .Mg (OH) 2 .4H 2 O). Compared to standard PCC, this material has a particularly low density (100-250 kg/m 3 instead of 300-600 kg/m 3 for standard PCC), a rather high BET specific surface area (15-35 m 2 /g instead of 4-15 m 2 /g for standard PCC) and a specific particle morphology and structure. The particles are indeed commonly spherical particles composed of a core of calcite/aragonite covered by a layer of hydromagnesite. This structure can be described as a core-shell structure. Due to these special features, this product could be used in multiple applications, such as raw material for the manufacture of insulation material, flame retardant, filler in plastics, paints, paper, rubber, and many more.
Intramolecular Singlet Fission in Oligoacene Heterodimers (2016)

We investigate singlet fission (SF) in heterodimers comprising a pentacene unit covalently bonded to another acene as we systematically vary the singlet and triplet pair energies. We find that these energies control the SF process, where dimers undergo SF provided that the resulting triplet pair energy is similar or lower in energy than the singlet state. In these systems the singlet energy is determined by the lower-energy chromophore, and the rate of SF is found to be relatively independent of the driving force. However, triplet pair recombination in these heterodimers follows the energy gap law. The ability to tune the energies of these materials provides a key strategy to study and design new SF materials-an important process for third-generation photovoltaics.
Synthesis of polyesteramides by a new palladium catalyzed carbonylation–polycondensation reaction (2001)

Alternating polyesteramides are prepared by palladium catalyzed carbonylation–polycondensation reactions of aromatic diiodides and aminohydroxy compounds in the presence of an organic base.
Assisted link prediction (ALP) protocol in robotic communications (2017)

Robotic applications are important in both indoor and outdoor environments. Establishing reliable end-to-end communication among robots in such environments are inevitable. Many real-time challenges in robotic communications are mainly due to the dynamic movement of robots, battery constraints, absence of Global Positioning System (GPS), etc. After recognizing these challenges, building a communication framework among the robots demands the prior knowledge of network connectivity. In this paper, we explore the idea of developing real-time link prediction mechanism between robots by Assisted Link Prediction (ALP) protocol. This is a novel method with intelligent decision process, which can be implemented on the real robots. It resolves many real-time challenges like multiple link ambiguity, accuracy of prediction, improving Packet Reception Ratio (PRR) and reducing energy consumption in-terms of lesser retransmissions. Keeping in view the easy portability of this protocol, we develop the entire software package in Robot Operating System (ROS) framework with the help of Gazebo Simulator and port on the real test-bed using Rpi-3 boards.
Molecular Cloning and Expression of Murine and Bovine Endothelial Cell Protein C/Activated Protein C Receptor (EPCR) (1995)

Recently, we identified and cloned a human endothelial cell protein C/activated protein C receptor (EPCR). EPCR was predicted to be a type 1 transmembrane glycoprotein and a novel member of the CD1/major histocompatibility complex superfamily with 28% identity with CD1d. Even greater homology (62% identity) was detected with the murine protein, CCD41, which was previously characterized as a centrosome-associated, cell cycle-dependent protein. This raised the possibility that CCD41 was the murine homologue of EPCR. To address this possibility, to better understand structure-function relationships, and to facilitate physiological experiments on EPCR function, we cloned and sequenced murine and bovine EPCR from endothelial cell cDNA libraries. The nucleotide sequence of murine EPCR and CCD41 exhibited five differences corresponding to one base change, three single-base insertions, and one base deletion in the protein coding region. As a result, the predicted structures of EPCR and CCD41 differed in their amino and carboxyl termini but were identical in the central portion of the coding sequence. Based on comparison of the murine, bovine, and human EPCR sequences and the regions where discrepancies between murine EPCR and CCD41 were detected, we believe that CCD41 is probably identical to murine EPCR and that the reported sequence differences are likely the result of compression on the sequencing gel. Compared with human EPCR, the murine and bovine sequences were 69 and 73% identical, respectively, and 57% of the residues were identical between all three species. Both bovine and murine EPCR could bind human activated protein C when the cDNA clones were transfected into 293T cells. Like human EPCR, of the cell lines tested, the murine EPCR message was restricted to endothelium. Cloning of the murine and bovine homologue of EPCR will facilitate in vivo and in vitro studies of the role of EPCR in the protein C pathway.
Comparative analysis of amino acids and amino-acid derivatives in protein crystallization (2010)

Optimal conditions for protein crystallization are difficult to determine because proteins tend to aggregate in saturated solutions. This study comprehensively evaluates amino acids and amino-acid derivatives as additives for crystallization. This fourth component of the solution increases the probability of crystallization of hen egg-white lysozyme in various precipitants owing to a decrease in aggregation. These results suggest that the addition of certain types of amino acids and amino-acid derivatives, such as Arg, Lys and esterified and amidated amino acids, is a simple method of improving the success rate of protein crystallization.
Logic Optimization of Majority-Inverter Graphs (2019)

Majority-inverter graphs (MIGs) are a multi-level logic representation of Boolean functions with remarkable algebraic and Boolean properties that enable efficient logic optimizations beyond the capabilities of conventional logic representations. In this paper, we survey two state-of-the-art logic optimization methods for MIGs: cut rewriting and cut resubstitution. Both algorithms are generic and can be applied to arbitrary graph-based logic representations. We describe them in a unified framework and show experimental results for MIG size optimization using the EPFL combinational benchmark suite.
<title>Compact Refractor Telescopes For The Thermal Infrared</title> (1982)

A growing market for thermal imaging systems has led to a demand for various new types of high performance refractor telescopes. Many system applications impose space constraints which require telescopes with a short overall length and minimum objective aperture oversize. By using high order aspheric surfaces and optical materials other than germanium it is possible to produce telescope designs which are compact and offer other attractive features. One such telescope design is described in detail, the emphasis being placed on the optical design and its effects on different system configurations.
Length-Compatible Polar Codes: A Survey : (Invited Paper) (2019)

Polar codes natively lack the flexibility that is desired for practical application. Namely, Arikan's polar code definition can only achieve code lengths that are powers of two. Rate-matching techniques, known as puncturing and shortening, have been applied to polar codes to grant a flexible block length. By considering polarizing kernels of alternate dimensions, Multi-kernel polar codes improve natural block length flexibility. With the recent advent of the 3GPP 5 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">th</sup> generation New Radio specification, there now exists an industry standard for length-flexible polar codes. This paper outlines various state-of-the-art flexible polar coding schemes, such as puncturing, shortening, and multi-kernel construction, and evaluates their efficacy with respect to the newly designed 3GPP standard. Simulations and an in-depth analysis are presented.
Incipient Bearing Fault Detection via Motor Stator Current Noise Cancellation Using Wiener Filter (2009)

Current-based monitoring can offer significant economic savings and implementation advantages over traditional vibration monitoring for bearing fault detection. The key issue in current-based bearing fault detection is to extract bearing fault signatures from the motor stator current. Since the bearing fault signature in the stator current is typically very subtle, particularly when the fault is at an incipient stage, it is difficult to detect the fault signature directly. Therefore, in this paper, the bearing fault signature is detected alternatively by estimating and removing nonbearing fault components via a noise cancellation method. In this method, all the components of the stator current that are not related to bearing faults are regarded as noise and are estimated by a Wiener filter. Then, all these noise components are cancelled out by their estimates in a real-time fashion, and a fault indicator is established based on the remaining components which are mainly caused by bearing faults. Machine parameters, bearing dimensions, nameplate values, and the stator current spectrum distribution are not required in the method. The results of online experiments with a 20-hp induction motor under multiple load levels have confirmed the effectiveness of this method.
ChemInform Abstract: A Roadmap to Implementing Metal—Organic Frameworks in Electronic Devices: Challenges and Critical Directions (2012)

Abstract Review: 93 refs.
Influence of linker unit on performance of palladium(II) coproporphyrin labelling reagent and its bioconjugates (2003)

In this paper we describe the preparation of a series of new phosphorescent labelling reagents, based on monosubstituted palladium(II) coproporphyrin-I and the isothiocyanato reactive group. The labelling reagents differ with respect to the chemical composition of the linker unit that combines the reactive group and the porphyrin chromophore. Altogether, seven different labelling reagents are prepared. The new labelling reagents are conjugated with monoclonal mouse IgG to yield label conjugates with variable degrees of conjugation. The effect is studied of linker unit on: (a) the conjugation reaction kinetics; (b) the biological activity of the resulting IgG conjugates; and (c) the efficiency of phosphorescence emission. The results show that an increase in the length of the linker unit has a positive effect on both the reactivity of the label and the biological activity of the resulting conjugates. In addition, the results indicate that the labels with the most hydrophilic linker units exhibit the highest phosphorescence emission efficiencies.