gebhart/patrepeval huggingface dataset:
Development of the Advanced Deep Space Transponder (2004)

We present the architecture and design of a new transponder to support deepspace and near-Earth missions in the post-2010 time frame. This transponder is designed to provide direct-to-Earth command and telemetry service; spacecraftto-spacecraft command and telemetry service; direct-to-Earth navigation in the form of coherent Doppler turnaround, sequential turn-around ranging, pseudo-noise regenerative ranging, and differential one-way ranging; and spacecraft-to-spacecraft navigation in the form of coherent Doppler turnaround and one-way pseudo-noise code ranging.
Design Optimization of On-Chip Inductive Peaking Structures for 0.13-$\mu{\hbox {m}}$ CMOS 40-Gb/s Transmitter Circuits (2009)

This paper describes design methodologies for the optimal inductive peaking structures used for the 40-Gb/s serializing transmitter circuits presented in. The implemented transmitter had more than 400 on-chip inductors and transformers in order to achieve the bandwidth required for the 38.4-Gb/s operation demonstrated in a 0.13-μm CMOS process. A bridged T-coil network with inverted mutual coupling was found more effective than the conventional T-coil with sizeable driver-side capacitance. An iterative refinement procedure that directly optimizes the circuit's large-signal transient response at the presence of the inductor parasitics and device nonlinearities via HSPICE-ASITIC joint-simulation is described. The procedure resulted in more than 3 × improvement in bandwidth for the CML buffer, multiplexer, and latch circuits. It is shown that the area and the achievable bandwidth of the optimal inductive peaking structures will scale favorably with the CMOS technology trends.
A Study on the Optical Properties of the Filament Yarn Weft Knit Fabrics and the 3-dimensional Model (2002)

Today, great percentage of apparel fabrics comprise knit products. A few apparel items are almost exclusively made from knit products including sweaters, T-shirts, lingerie, and hosiery. In weft knits, intermeshing yarn traverses the fabric crosswise. The production rate of knitting machines is about four times higher than that of conventional looms iin proportion to the amount of fabric produced per unit time. Knit apparels fabrics are noted for freedom of body movement, easy-care, resilience, soft draping and quality. The appearance of fabrics is of prime importance along with tactile features such as smoothness, crispness, stiffness when we deal with the handling evaluation of the textiles. In practice, the quality and performance of fabrics judged by sighted evaluators, and it is perhaps logical, in attempting to establish an effective fabric objective measurement system. It is worthwhile to make objective measurement that correlate well with subjective evaluations made by sight and touch together. However, it often imposes difficulties to effectively measure and analyze the appearance or optical properties of the textile surface features. In this study, an attempt is made to provide a preliminary approach to the analysis of the gloss property, which is one of the optical properties of fabrics. The specimens range from 70/24 nylon 6 filament yarn knit fabric to 70/68 nylon 6 filament yarn knit fabric, the latter being finer. A few three-dimensional models based on Peirce's model of knit stitch have been proposed and material properties were given to calculate the properties. Goniophotometric measurements of the specimens were also carried out.
In Vitro and in Vivo Adherence of Uropathogenic Escherichia Coli Strains (1986)

Twenty-eight Escherichia coli strains isolated from the urine of patients with urinary tract infections were assayed for fimbrial type, in vitro capacity to agglutinate guinea pig red blood cells, and in vivo adherence to rat bladder uroepithelium. A direct correlation was found between hemagglutinating capacity and in vivo adherence. Strains with both Type 1 and P fimbriae showed the greatest adherence in vivo. Of the 28 strains, seven did not manifest either Type 1 or P fimbriae but agglutinated red blood cells and did adhere in vivo. In studies on bacterial adherence and urinary tract infections, both in vivo and in vitro studies may contribute to understanding the relevance of bacterial adhesins in initiating urinary tract infections.
Storage-aware Algorithms for Scheduling of Workflow Ensembles in Clouds (2015)

This paper focuses on data-intensive workflows and addresses the problem of scheduling workflow ensembles under cost and deadline constraints in Infrastructure as a Service (IaaS) clouds. Previous research in this area ignores file transfers between workflow tasks, which, as we show, often have a large impact on workflow ensemble execution. In this paper we propose and implement a simulation model for handling file transfers between tasks, featuring the ability to dynamically calculate bandwidth and supporting a configurable number of replicas, thus allowing us to simulate various levels of congestion. The resulting model is capable of representing a wide range of storage systems available on clouds: from in-memory caches (such as memcached), to distributed file systems (such as NFS servers) and cloud storage (such as Amazon S3 or Google Cloud Storage). We observe that file transfers may have a significant impact on ensemble execution; for some applications up to 90 % of the execution time is spent on file transfers. Next, we propose and evaluate a novel scheduling algorithm that minimizes the number of transfers by taking advantage of data caching and file locality. We find that for data-intensive applications it performs better than other scheduling algorithms. Additionally, we modify the original scheduling algorithms to effectively operate in environments where file transfers take non-zero time.
A New Method for Measuring Nonvolatile Residue for Ultrapure Solvents (1987)

A quantitative method is described for measuring the nonvolatile residue of ultrapure solvents. Results are presented that show reasonable agreement with an alternative gravimetric method. A qualitative method for measuring nonvolatile residue is also described. This method has the potential to monitor the residue contamination level in large-volume, deionized water production facilities.
Top orthogonal to bottom electrode (TOBE) 2-D CMUT arrays for 3-D photoacoustic imaging (2014)

Top orthogonal to bottom electrode (TOBE) capacitive micromachined ultrasound transducers (CMUTs) are a new transducer architecture that permits large 2-D arrays to be addressed using row-column addressing. Here, we demonstrate the feasibility of 3-D photoacoustic imaging using N laser pulses and N receive channels. We used a synthetic aperture approach to simulate a large 2 X 2 cm array using a smaller die. A hair phantom in an oil immersion medium was excited by a laser, and the received signal was dynamically focused to obtain high-resolution images. We found the TOBE CMUT to have a center frequency of 3.7 MHz with a bandwidth of 3.9 MHz. Lateral and axial resolutions were 866 ¿m and 296 μm, respectively.
Derivation of keratinocyte progenitor cells and skin formation from embryonic stem cells. (2004)

Despite numerous elegant transgenic mice experiments, the absence of an appropriate in vitro model system has hampered the study of the early events responsible for epidermal and dermal commitments. Embryonic stem (ES) cells are derived from the pluripotent cells of the early mouse embryo. They can be expanded infinitely in vitro while maintaining their potential to spontaneously differentiate into any cell type of the three germ layers, including epidermal cells. We recently reported that ES cells have the potential to recapitulate the reciprocal instructive ectodermal-mesodermal commitments, which are characteristic of embryonic skin formation. Derivation of epidermal cells from murine ES cells has been successfully established by exposing the cells to precisely controlled instructive influences normally found in the body, including extracellular matrix and the morphogen BMP-4. These differentiated ES cells are able to form, in culture, a multilayered epidermis coupled with an underlying dermal compartment similar to native skin. This bioengineered skin provides a powerful tool for studying the molecular mechanisms controlling skin development and epidermal stem cell properties.
评《道德尺度,建立一种新的经济学》 (1990)

多年来,在社会科学领域及其理论本质性征上一直存在着一场斗争。所谓合理选择学说在标准经济学的核心地带已不再有令人难以企及的地位,而在政治理论领域那几乎未加防范的疆土上,轻而易举的退却则更加剧了这一趋向。看来,社会科学领域的广袤家园也要自身难保了。那些征服和占有新领域的进攻者手中掌握着全新的武器,包括公共选择理论,集体行动及政治的经济学理论;包括交易成本,信息经济学,资本动因理论及组织的经济学理论;包括财产权,对策论及制度的经济学理论等。面对这咄咄逼人的攻势,志在捍卫本土的同病相怜者们恐怕又太急于携起手来以巩固他们的阵线,结果反倒没能守住并巩固那新帝国的疆界。
Synthesis and Metal‐Binding Properties of Polybipyridine Ligands Derived from Acyclic and Macrocyclic Polyamines (1990)

Abstract Synthetic procedures have been developed for the preparation of ligands bearing two to six pendent, unsubstituted or substituted 2, 2′‐bipyridine groups attached to acyclic (tripode, tetrapode) and macrocyclic (triazanonade‐cane, cyclam, hexacyclen, bis(bipyrido)hexaazamacrocycle) polyamines. Ligands 1‐5 have been obtained in high yield by condensation of 6‐(bromomethyl)‐2, 2′‐bipyridine ( 9b ) with the corresponding amines in the presence of NaOH, H 2 O, and MeOH. Ligands 6‐8 have been prepared in good yield by condensation of 9b or the di‐ or tetrasubstituted mono (bromomethyl) bipyridine 10b or 11b , respectively, with the corresponding amines in the presence of Na 2 CO 3 and MeCN. Ligand 1 forms hemi‐cage complexes with Ru II , Fe I , Cr II , and Cr III cations and trinuclear complexes with [RuCl 2 (bpy) 2 ] and [ReCl(CO) 5 ]. Tetrapode 2 and hexapode 4 gave tetranuclear and dinuclear complexes, respectively, by reaction with Fe11 salts. These complexes possess a variety of interesting physical and chemical properties.
Cold Pressing and Supercritical CO2 Extraction of Hemp (Cannabis sativa) Seed Oil (2015)

In a past few decades the variety of hemp Cannabis sativa L. was unfairly neglected because of the similarity with the kind of hemp that is illegal and is used as a narcotic. The objective of this study was to evaluate the oil extraction process from Cannabis sativa seeds by cold pressing followed by extraction with supercritical CO2. In pressing experiments, the response surface methodology was conducted in order to study the effects of temperature, frequency and nozzle size on oil recovery and quality parameters. The optimal condition to obtain the highest oil recovery and the best oil quality within the experimental range of the variables studied was at temperature of 60 °C, frequency of 20 Hz and using nozzle of ID 6 mm. The residual oil in the press cake was totally extracted by supercritical CO2 in newly designed and built supercritical fluid extraction system. The oregano essential oil was the most effective in protecting the oil from oxidative deterioration.
Organonickel compounds as reagents for selective carbon-carbon bond formation between unlike groups (1967)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrganonickel compounds as reagents for selective carbon-carbon bond formation between unlike groupsElias J. Corey and Martin F. SemmelhackCite this: J. Am. Chem. Soc. 1967, 89, 11, 2755–2757Publication Date (Print):May 1, 1967Publication History Published online1 May 2002Published inissue 1 May 1967https://pubs.acs.org/doi/10.1021/ja00987a056https://doi.org/10.1021/ja00987a056research-articleACS PublicationsRequest reuse permissionsArticle Views1215Altmetric-Citations130LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Comparative bioavailability of two suspension formulations of potassium diclofenac in healthy male volunteers. (1994)

The bioavailability of two suspension formulations of potassium diclofenac (Flogan, Merck and Cataflam, Ciba-Geigy) were compared in eighteen healthy male volunteers who received a single dose of 7 ml of each suspension (equivalent to 105 mg of potassium diclofenac) in an open randomized two period crossover design, with a fourteen-day washout period between doses. Serum samples were obtained over a 24 hour interval and diclofenac concentrations were determined by HPLC with ultraviolet detection. From the serum diclofenac concentration vs time curves, AUC[0-24] (area under the concentration vs time curves from 0-24 h), Cmax (maximum achieved concentration), Tmax (time to achieve Cmax) and Ke (terminal first order elimination constant) were obtained. Overlapping of Tmax intervals for both formulations was observed, but the important inter-subject variation observed in Cmax ratios did not allow equivalence conclusion for the rate of absorption. Equivalence in the extent of bioavailability between both potassium diclofenac suspension brands was concluded from the analysis of AUC[0-24] ratios.
Biology and therapy with biologic agents in gynecologic cancer (1992)

Growth of epithelial ovarian cancer is influenced by several factors including transforming growth factor-alpha and transforming growth factor-beta, macrophage colony stimulating factor, tumor necrosis factor-alpha, interleukin-1 and interleukin-6, c-erb B-2 (HER-2/neu), and mutant p53. Continued expression of the epidermal growth factor receptor, new expression of c-fms, and overexpression of HER-2/neu are associated with a poor prognosis. A number of cytokines have been used to treat patients with ovarian cancer, including interferon-alpha, interferon-gamma, tumor necrosis factor-alpha, and interleukin-2. Judging from preclinical models, interferon-gamma may be more active than interferon-alpha against human ovarian cancer. Although tumor necrosis factor-alpha can stimulate proliferation of some ovarian cancers, the cytotoxic activity of tumor necrosis factor-alpha has been amplified ex vivo by inhibitors of protein synthesis. Similar heterogeneity exists with regard to interleukin-1 where stimulation or inhibition of cell proliferation has been observed. Tumor-infiltrating lymphocytes from ascites fluid contain cells capable of major histocompatibility complex-restricted and major histocompatibility complex-nonrestricted cytotoxicity. Tumor-infiltrating lymphocytes and interleukin-2 have been combined with cytotoxic chemotherapy to treat advanced or recurrent disease. Bispecific monoclonal antibodies that react both with T cells and ovarian tumor cells have produced tumor inhibition in human tumor xenografts. Immunotoxins that contain OVB3 and pseudomonas exotoxin have been evaluated in a phase I clinical trial. Dose-limiting central neurotoxicity has been observed without tumor regression. A monoclonal antibody designated OVX1 has been developed against a high-molecular-weight mucinlike molecule associated with ovarian cancers.(ABSTRACT TRUNCATED AT 250 WORDS)
Relevance of Mediterranean diet and glucose metabolism for nephrolithiasis in obese subjects (2014)

Overweight and obese stone formers may have a defect in glucose metabolism and a potential liver damage. Some foods typical of Mediterranean diet may protect against nephrolithiasis.
Binding of conserved islet peptides by human and murine MHC class II molecules associated with susceptibility to type I diabetes (2000)

The major histocompatibility complex (MHC) is the most important susceptibility locus for type I diabetes in humans and NOD mice. NOD mice express a single MHC class II molecule (I-Ag7) which carries a unique beta chain sequence. In humans, DQ alleles that encode DQ8 and DQ2 confer the highest risk for the disease. Soluble DQ8 and I-Ag7 were used to directly compare the binding specificity of these MHC molecules. Peptides from three islet antigens--insulin, GAD 65 and HSP 60--bound to both CQ8 and I-Ag7. These peptides included epitopes that are immunodominant in NOD mice, namely insulin (9-23), GAD (206-220) and HSP 60 (441-460). All of these peptide sequences are highly conserved between the human and murine antigens. The binding specificity of DQ8 and I-Ag7 was similar, but not identical, since two peptides eluted from splenocytes of NOD mice did not bind to DQ8. DQ8 formed long-lived complexes with the majority of these peptides, indicating that DQ8 is not a poor peptide binder. These results demonstrate functional similarities between human and murine MHC class II molecules that confer susceptibility to type I diabetes.
The whipping quality of cream / (1922)

Factors influencing whipping quality- 1 Experimental procedure 2 Method of comparing stiffness of whipped cream 2 Relation of various factors to whipping quality 3 Page. " Standing-up " quality of whipped cream 20 Whipping quality of powdered cream, 21 IWhipping quality of evaporated milk_ 21 Summary 21
HIGH ACCURACY FINITE VOLUME ELEMENT METHOD FOR TWO-POINT BOUNDARY VALUE PROBLEM OF SECOND ORDER ORDINARY DIFFERENTIAL EQUATIONS (2002)

In this paper, a high accuracy finite volume element method is presented for two-point boundary value problem of second order ordinary differential equation, which differs fromthe high order generalized difference methods. It is proved that the method has optimal order er-ror estimate O(h3) in H1 norm. Finally, two examples show that the method is effective.
Transforming properties of TC‐1 in human breast cancer: Interaction with FGFR2 and β‐catenin signaling pathways (2007)

Breast cancer development is associated with gene amplification and over expression that is believed to have a causative role in oncogenesis. Previous studies have demonstrated that over expression of TC-1(C8orf4) mRNA occurs in approximately 50% of breast cancer cell lines and primary tumor specimens. Here, we show that TC-1 has transforming properties in human mammary epithelial (HME) cells and its expression is mechanistically linked to FGFR signaling cascades. In vitro experiments demonstrate that TC-1 over expression mediates both anchorage-independent and growth factor-independent proliferation of HME cells. TC-1 was down regulated by the FGFR inhibitor PD173074 in the breast cancer cell line SUM-52 that also has an FGFR2 gene amplification and over expression. Furthermore, forced expression of FGFR2 in HME cells increased the level of expression of endogenous TC-1 mRNA. TC-1 has been implicated as a modulator of Wnt/beta-catenin signaling in 293 cells and in gastric cancer cells. However, while we did find increased expression of a subset of beta-catenin target genes in TC-1 over expressing cells, we did not find an association of TC-1 with global expression of beta-catenin target genes in our cells. Taken together, our data suggest that TC-1 over expression is transforming and may link with the FGFR pathway in a subset of breast cancer.
Robust visual tracking using a fixed multi-camera system (2004)

The problem of tracking the position and orientation of a moving object using a stereo camera system is considered in this paper. A robust algorithm based on the extended Kalman filter is adopted, combined with an efficient selection technique of the object image features, based on Binary Space Partitioning tree geometric models. An experimental study is carried out using a vision system of two fixed cameras.
Integrated interface electronics for capacitive MEMS inertial sensors (2010)

This thesis is composed of 13 publications and an overview of the research topic, which also summarizes the work. The research presented in this thesis concentrates on integrated circuits for the realization of interface electronics for capacitive MEMS (micro-electro-mechanical system) inertial sensors, i.e. accelerometers and gyroscopes. The research focuses on circuit techniques for capacitive detection and actuation and on high-voltage and clock generation within the sensor interface. \n Characteristics of capacitive accelerometers and gyroscopes and the electronic circuits for accessing the capacitive information in open- and closed-loop configurations are introduced in the thesis. One part of the experimental work, an accelerometer, is realized as a continuous-time closed-loop sensor, and is capable of achieving sub-micro-g resolution. The interface electronics is implemented in a 0.7-µm high-voltage technology. It consists of a force feedback loop, clock generation circuits, and a digitizer. Another part of the experimental work, an analog 2-axis gyroscope, is optimized not only for noise, but predominantly for low power consumption and a small chip area. The implementation includes a pseudo-continuous-time sense readout, analog continuous-time drive loop, phase-locked loop (PLL) for clock generation, and high-voltage circuits for electrostatic excitation and high-voltage detection. The interface is implemented in a 0.35-µm high-voltage technology within an active area of 2.5 mm². The gyroscope achieves a spot noise of 0.015 °/s/√H̅z̅ for the x-axis and 0.041 °/s/√H̅z̅ for the y-axis. \n Coherent demodulation and discrete-time signal processing are often an important part of the sensors and also typical examples that require clock signals. Thus, clock generation within the sensor interfaces is also reviewed. The related experimental work includes two integrated charge pump PLLs, which are optimized for compact realization but also considered with regard to their noise performance. Finally, this thesis discusses fully integrated high-voltage generation, which allows a higher electrostatic force and signal current in capacitive sensors. Open- and closed-loop Dickson charge pumps and high-voltage amplifiers have been realized fully on-chip, with the focus being on optimizing the chip area and on generating precise spurious free high-voltage signals up to 27 V.
Chemistry of soil minerals. Part XI. Hydrothermal transformations of metakaolinite in potassium hydroxide (1972)

Metakaolinite, or metakaolinite with added silica, has been treated with potassium hydroxide solutions to yield six zeolites and the two felspathoids kaliophilite and kalsilite. Among the zeolites K–F, K–M (near-phillipsite), and K–G (near-chabazites) were abundantly and consistently formed. The properties of these zeolites and of their ion-exchange forms have been particularly examined. The near-chabazites were prepared with ratios SiO2/Al2O3 from 2·13 to 4·51; the most siliceous of these in their Li- or Ca- exchange forms were excellent sorbents with the molecule-sieving characteristics of calcium-rich natural chabazites. The yields of crystals (K–G or K–F) declined with increasing excess of KOH of constant molality; and the ratios SiO2/Al2O3 were always less than these ratios in the reactant mixture except when SiO2/Al2O3= 2. Whatever the ratio SiO2/Al2O3 in the parent mixture this ratio in the resultant crystals approached more and more nearly to 2 the greater the alkali concentration.
An Overview of Event Extraction from Twitter (2015)

As an emerging research area, event extraction from Twitter has attracted much attention since 2010. This paper attempts to provide a critical survey of the technical achievements in this area. It covers different aspects of the research, including the definition of the problem, existing approaches, and evaluation issues. Finally, in retrospect of what has been achieved so far, the survey also discusses the future challenges and research issues need to be addressed.