gebhart/patrepeval huggingface dataset:
High-output paraffin linear motors: utilization in adaptive systems (1992)

High output paraffin (HOP) thermal actuators are used as linear motors in spacecraft mechanical systems. Heat energy to drive the devices is provided by either environmental temperature changes or electrically powered resistance heaters. Mechanical work is obtained from the 15% expansion of paraffin that occurs during the solid-to-liquid phase change. This paper describes the design and characterization of an HOP positioning actuator prototype (HPAP); an HOP actuator configured to provide accurate, high force positioning for adaptive systems such as space structures and optics. The HPAP provides a maximum 150 lbf over a displacement of 0.1 in. when powered with 20 W at 28 V ac or dc. Parameters critical to use in adaptive systems are characterized including dynamic response vs. load and power input, set-point accuracy, and accuracy vs. actuator velocity. With 10 watts of cooling available through conduction, calculated HPAP response time against a 100 lbf load is 7.9, 21, and 150 seconds for step changes of 10, 100, and 1000 micrometers respectively. Measurement of the set- point accuracy was limited by the accuracy of the position measuring equipment (+/- .03 micrometers ). Test results indicate that HOP thermal actuators are appropriate for utilization in adaptive systems requiring high displacement, accurate positioning within a control bandwidth of 0.5 Hz or less.
Die Oktoberrevolution und die Perspektiven der sozialistischen Revolution in den kapitalistischen Industrieländern (1967)

Article Die Oktoberrevolution und die Perspektiven der sozialistischen Revolution in den kapitalistischen Industrieländern was published on December 1, 1967 in the journal Deutsche Zeitschrift für Philosophie (volume 15, issue s1).
Hyper-V FAQs 消除大家关于虚拟化技术的扩展性、迁移等相关话题的疑惑 (2008)

Michael会帮助大家对Hyper—V的需求进行评估，例如如何从其它VM升级或迁移，并为我们介绍Hyper—V、Virtual Server2005及VMware的ESX Server之间的不同点。
Cruciform Communication as Transformative Truth-Seeking (2017)

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Fulfillment-Based Fairness: A New Fairness Notion for Multi-AP Wireless Hotspots (2007)

Today, most wireless hotspots deploy multiple APs (Access Points) to improve the network performance and to provide fair and satisfactory services to clients. However, without a well-defined fairness objective function and the corresponding service provision schemes, the desired improvements may not be achieved. On the other hand, it has been realized that existing fairness notions proposed for single-AP wireless hotspots exhibit various performance anomalies in multi-AP wireless hotspots: <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">bandwidth</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">anomaly</i> with Bandwidth-based Fairness (BbF) and <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">association</i> <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">anomaly</i> with Timeshare-based Fairness (TbF). To answer this challenge, we propose a new fairness notion, called the Fulfillment-based Fairness (FbF), for multi-AP wireless hotspots. It emphasizes allocation of bandwidth to clients in proportion to their respective maximum attainable bandwidth allocations. Extensive simulation shows that FbF outperforms BbF and TbF in terms of aggregate system throughput by up to 40% and 70%, respectively. It performs particularly well when the clients present a high degree of transmission rate diversity and/or in the presence of bottleneck clients that can only communicate with a single AP at low transmission rates.
A prossecução dos estudos: O papel da personalidade na tomada de decisão (2012)

O presente estudo tem como objetivo identificar o papel da personalidade Big Five na decisão dos sujeitos de prosseguir ou não os estudos após o ensino secundário. Foi constituída uma amostra de 98 sujeitos, 50% do sexo masculino e 50% do sexo feminino, que terminaram o ensino secundário entre 2004/05 e 2010/11. A idade dos participantes situa-se entre 18 e 41 anos, a idade média é 23,72 anos. Os sujeitos que prosseguiram estudos corresponderem a 68,4% dos participantes e os que não prosseguiram correspondem apenas a 31,6% da amostra. Foi aplicado um questionário de levantamento de decisões académicas e o BFI-44, versão original (BFI, John & Srivastava, 1999), como instrumento de avaliação da personalidade que também pudesse ser respondido pela internet. Estamos perante um estudo correlacional, para amostras independentes, cuja seleção dos participantes foi feita por abordagem direta, onde se perguntava se tinham o 12º ano de escolaridade completo. Com base nos resultados obtidos, com um nível de significância de 0,10, verificou-se que os sujeitos mais conscienciosos manifestam maior tendência para prosseguir os estudos após o secundário, comparativamente aos sujeitos com resultados inferiores nesta dimensão. A conscienciosidade é a única dimensão com capacidade preditiva para todos os grupos ocupacionais e estudos relacionados com o trabalho. De uma forma geral, verifica-se uma tendência para que os sujeitos que seguiram os estudos manifestem valores superiores nas dimensões de extroversão, amabilidade e abertura à experiência, mas a maior diferença entre grupos está na conscienciosidade, na estabilidade emocional e na abertura à experiência.
Recent Advances in the Synthesis of β-Carboline Alkaloids (2021)

β-Carboline alkaloids are a remarkable family of natural and synthetic indole-containing heterocyclic compounds and they are widely distributed in nature. Recently, these alkaloids have been in the focus of interest, thanks to their diverse biological activities. Their pharmacological activity makes them desirable as sedative, anxiolytic, hypnotic, anticonvulsant, antitumor, antiviral, antiparasitic or antimicrobial drug candidates. The growing potential inherent in them encourages many researchers to address the challenges of the synthesis of natural products containing complex β-carboline frameworks. In this review, we describe the recent developments in the synthesis of β-carboline alkaloids and closely related derivatives through selected examples from the last 5 years. The focus is on the key steps with improved procedures and synthetic approaches. Furthermore the pharmacological potential of the alkaloids is also highlighted.
Recent advances in the chemistry of caryophyllene (1998)

I. G. Collado, J. R. Hanson and A. J. Macías-Sánchez, Nat. Prod. Rep., 1998, 15, 187 DOI: 10.1039/A815187Y
The Possibility of Simvastatin as a Chemotherapeutic Agent for All-trans Retinoic Acid-Resistant Promyelocytic Leukemia (2008)

In this study, the authors evaluated the possible use of 3-hydroxymethylglutaryl coenzyme A (HMG-CoA) reductase inhibitors (statins) in anti-leukemic chemotherapy. Cytotoxic potency against HL-60 was as follows; simvastatin (SV)>atorvastatin>cerivastatin>fluvastatin. Interestingly, HL-60-R2, an all-trans retinoic acid (ATRA)-resistant HL-60 variant, was twice as sensitive to SV than HL-60. Further studies revealed the particular mechanism of action of SV-induced apoptosis in leukemia. SV directly and rapidly disordered mitochondria with a loss of its membrane potential, reactive oxygen species (ROS) generation and subsequent irreversible damage with cytochrome c leakage and, finally, SV induced apoptosis through caspase-9 activation, whereas several studies have shown that other statins induced apoptosis to leukemia by the depletion of isoprenoids used for the prenylation of small GTPases, which are essential for cellular signal transduction. Our findings suggest that the mitochondrial pathway plays an important role in the higher potency of SV as a new class of agents for anti-leukemic therapy alone and/or in combination with agents.
Trench depth measurement system for VLSI DRAM's capacitor cells using optical fiber and michelson interferometer (1987)

A simple method to precisely measure the trench depth of VLSI DRAM's capacitor cells is presented. The measurement system uses a Michelson interferometer and a white light source. The trench depth is transformed into the optical path difference between the central peak and one of sideband peaks produced during one-way scan of a mirror in a Michelson interferometer. The measurement error was within <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\pm0.2 \mu</tex> m for trench depths of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2-5 \mu</tex> m. The multimode fiber used in the system facilitates wafer setup so that the system can be introduced into an in-process measurement system.
Preliminary Progress in Jute (Corchorus species) Genome Analysis (2005)

The paper summarizes the progress made in cloning and sequencing a limited number of genes from jute (Corchorus olitorius and C. capsularis) and discusses future applications of jute genome analysis. As of December 2005, slightly over 200 DNA sequences have been deposited in GenBank. Although many of these sequences are partial and uncharacterized, this marks the beginning of a major step in unraveling of the hitherto unknown jute genome. We have constructed both cDNA and genomic DNA libraries for C. olitorius var. O4 and C. capsularis var. CVL-1 in the plasmid vectors pSMART and pBluescript, respectively. Random clones were isolated and sequenced. These DNA sequences have been deposited in GenBank and analyzed using TAIR (www.arabidopsis.org) for similar sequences in Arabidopsis thaliana and other related plant species. The complete sequence for tRNA-Leu and partial sequence of DNA fragments encoding several proteins, such as RNA polymerase β subunit-1, 18S rRNA, mitochondrial DNA directed RNA polymerase and carboxytransferase β-subunit are reported in this paper. The analysis of DNA sequences of related taxa deposited in GenBank is also presented delineating the scope and applications of cloning genes of agronomic importance.
Monoclonal antibodies reacting with the interleukin 1 receptor define a multi‐molecular complex (1990)

By sequential immunization with a variety of different interleukin (IL) 1 receptor (IL 1R)-bearing cells and by generating a large number of clones from a single fusion experiment, we have managed to produce two monoclonal antibodies which react with the lymphocyte IL 1R. The antibodies also react with the mouse fibroblast line, 3T3, but we have not yet defined their reactivity with cells carrying low-affinity receptors. Immunoprecipitation allows the IL 1R to be isolated from EL4 6.1 cell membrane preparations and shows that the IL 1R exists as a complex. The antibodies clearly interfere with IL 1 responses both in vitro and in vivo. These are the first anti-mouse IL 1R antibodies to be described which clearly and profoundly affect the immune response.
High-performance fiber M5 (2005)

A new type of high-performance fiber——M5 or PIPD is introduced.The paper describes the molecular structure, preparation method and properties of M5 fiber,especially compressive and shear properties,by comparing with other high-performance fibers such as carbon fiber,ultrahigh-strength polyethylene fiber,aramid fiber,and polybenzobisozazole(PBO)fiber.Apart from these,the high polarity of the M5 fiber promotes excellent adhesion to various resins,thereby overall mechanical properties of the M5 fiber is better than all other high-performance fibers.Outlook on potential application is further suggested.
Measures, Models, and Graphical Displays in the Analysis of Cross-Classified Data: Rejoinder (1991)

Leo A. Goodman, Measures, Models, and Graphical Displays in the Analysis of Cross-Classified Data: Rejoinder, Journal of the American Statistical Association, Vol. 86, No. 416 (Dec., 1991), pp. 1124-1138
The Measurement of pH in Aqueous Systems at Elevated Temperatures Using Palladium Hydride Electrodes (1980)

The use of palladium hydride electrodes (Pd black on Pd, Pt, and Au) for the measurement of pH in high temperature aqueous systems (298°–548°K) is described. The electrodes were calibrated against boric acid/lithium hydroxide buffer solutions, whose vs. temperature profiles have been calculated using known dissociation constants for the components. Linear potentialvs. pH correlations are observed for all temperatures studied. However, the gradients of the correlations deviate from the predicted Nernstian values. Furthermore, thermodynamic analyses of the systems demonstrate that above 373°K the observed potential deviates significantly from the equilibrium values calculated on the supposition that the potential‐determining reaction is . Possible reasons for the observed deviation from ideal behavior are identified.
Pavement detection in YCbCr color space and its application (2015)

Recognition of driving-view image is the most important future issue in a smart tachograph. The intersection imaging recognition is one of the important issues in driving-view image recognition. In addition to using in the GPS satellite positioning correction in the metropolitan area, it can also be applied to the traffic lights imaging recognition in an intersection. With some samples analyzing, the color ranges of pavement in the YCbCr color space is developed in this paper. Therefore, pavement and markings on the road can be separated. By using this color separation and calculating the ratio of markings and pavement, it can be applied to intersection imaging recognition of driving-view image. Experiments are carried out for some VEDR's videos to demonstration the computational advantage of the proposed method.
A HAND-HELD LASER-GENERATOR OF ULTRASONIC PULSES (1983)

Abstract A hand-held laser generator of ultrasonics has been developed based on some components from a laser rangefinding device. Operating at a wavelength of 1.06 μm, the laser has provided optical pulses on a single shot basis with energies of 3-10mJ in 10ns. The output was sufficient for use in NDT as a generator of elastic pulses in materials, thereby offering a non-contacting means of ultrasonic generation. In the case of metals, such elastic pulses propagated both along the surface and into the bulk of the sample. These ultrasonic pulses were detected by a number of different types of transducer and can therefore be used during 'on-site' calibration procedures.
Molecular Recognition in Poly(ε-caprolactone)-Based Thermoplastic Elastomers (2006)

The molecular recognition properties of the hydrogen bonding segments in biodegradable thermoplastic elastomers were explored, aiming at the further functionalization of these potentially interesting biomaterials. A poly(epsilon-caprolactone)-based poly(urea) 2 was synthesized and characterized in terms of mechanical properties, processibility and histocompatibility. Comparison of the data with those obtained from the structurally related poly(urethane urea) 1 revealed that the difference in hard segment structure does not significantly affect the potency for application as a biomaterial. Nevertheless, the small differences in hard block composition had a strong effect on the molecular recognition properties of the hydrogen bonding segments. High selectivity was found for poly(urea) 2 in which bisureidobutylene-functionalized azobenzene dye 3 was selectively incorporated while bisureidopentylene-functionalized azobenzene dye 4 was completely released. In contrast, the incorporation of both dyes in poly(urethane urea) 1 led in both cases to their gradual release in time. Thermal analysis of the polymers in combination with variable temperature infrared experiments indicated that the hard blocks in 1 showed a sharp melting point, whereas those in 2 showed a very broad melting trajectory. This suggests a more precise organization of the hydrogen bonding segments in the hard blocks of poly(urea) 2 compared to poly(urethane urea) 1 and explains the results from the molecular recognition experiments. Preliminary results revealed that a bisureidobutylene-functionalized GRGDS peptide showed more supramolecular interaction with the PCL-based poly(urea), containing the bisureidobutylene recognition unit, as compared to HMW PCL, lacking this recognition unit.
Time-based one-time password for Wi-Fi authentication and security (2017)

In the age of IOT, as more and more devices are getting connected to the internet through wireless networks, a better security infrastructure is required to protect these devices from massive attacks. For long SSIDs and passwords have been used to authenticate and secure Wi-Fi networks. But the SSID and password combination is vulnerable to security exploits like phishing and brute-forcing. In this paper, a completely automated Wi-Fi authentication system is proposed, that generates Time-based One-Time Passwords (TOTP) to secure Wi-Fi networks. This approach aims to black box the process of connecting to a Wi-Fi network for the user and the process of generating periodic secure passwords for the network without human intervention.
Amphiphilicity-Driven Organization of Nanoparticles into Discrete Assemblies (2006)

We present a method for organizing metallic nanoparticles in solution that is based on the hydrophobic effect and does not require either hydrogen bonding or molecular recognition. When amphiphilic V-shaped molecules are attached to a gold cluster, an aggregation process ensues in aqueous solution and leads to the formation of well-defined cylindrical and vesicular nanoarrays of particles. The metallic clusters densely pack at the boundary separating the hydrophobic core from the hydrophilic corona of the hybrid micelle-like aggregates. This design allows one to assemble and disassemble the nanoparticles in a reversible manner and control the size and the morphology of the arrays by changing the conditions of the solution preparation. The versatility of this method is demonstrated by its applicability to different metals with covalently attached amphiphilic arms with various chemical compositions (PS-PEO and PB-PEO) and molecular weights.
PEGylation enhances the therapeutic potential of peptide antagonists of the neonatal Fc receptor, FcRn (2011)

Peptides targeting the human neonatal Fc receptor (FcRn) were conjugated to poly(ethylene glycol) (PEG) polymers to study their effect on inhibition of the IgG:FcRn protein-protein interaction both in vitro and in mice. Both linear (5-40kDa) and branched (20, 40kDa) PEG aldehydes were conjugated to an amine-containing linker of a homodimeric anti-FcRn peptide using reductive alkylation chemistry. It was found that conjugation of PEG to the peptide compromised the in vitro activity, with larger and branched PEGs causing the most dramatic losses in activity. The conjugates were evaluated in transgenic mice for their ability to accelerate the catabolism of human IgG. Optimal pharmacodynamic properties were observed with PEG-peptide conjugates that contained 20-40kDa linear PEGs and a 20kDa branched PEG. The optimal PEG-peptide conjugates were more effective in vivo than the unconjugated peptide control on a mole:mole and mg/kg basis, and represent potential new longer-acting peptide therapeutics for the treatment of humorally-mediated autoimmune disease.
Factors Influencing the Composition of the Intestinal Microbiota in Early Infancy (2006)

The most important determinants of the gut microbiotic composition in infants were the mode of delivery, type of infant feeding, gestational age, infant hospitalization, and antibiotic use by the infant. Term infants who were born vaginally at home and were breastfed exclusively seemed to have the most "beneficial" gut microbiota (highest numbers of bifidobacteria and lowest numbers of C difficile and E coli).
The Methyl Donor S-Adenosylmethionine Inhibits Active Demethylation of DNA (2003)

S-Adenosylmethionine (AdoMet) is the methyl donor of numerous methylation reactions. The current model is that an increased concentration of AdoMet stimulates DNA methyltransferase reactions, triggering hypermethylation and protecting the genome against global hypomethylation, a hallmark of cancer. Using an assay of active demethylation in HEK 293 cells, we show that AdoMet inhibits active demethylation and expression of an ectopically methylated CMV-GFP (green fluorescent protein) plasmid in a dose-dependent manner. The inhibition of GFP expression is specific to methylated GFP; AdoMet does not inhibit an identical but unmethylated CMV-GFP plasmid. S-Adenosylhomocysteine (AdoHcy), the product of methyltransferase reactions utilizing AdoMet does not inhibit demethylation or expression of CMV-GFP. In vitro, AdoMet but not AdoHcy inhibits methylated DNA-binding protein 2/DNA demethylase as well as endogenous demethylase activity extracted from HEK 293, suggesting that AdoMet directly inhibits demethylase activity, and that the methyl residue on AdoMet is required for its interaction with demethylase. Taken together, our data support an alternative mechanism of action for AdoMet as an inhibitor of intracellular demethylase activity, which results in hypermethylation of DNA.