gebhart/patrepeval huggingface dataset:
Application of Mobile Energy Storage for Enhancing Power Grid Resilience: A Review (2021)

Natural disasters can lead to large-scale power outages, affecting critical infrastructure and causing social and economic damages. These events are exacerbated by climate change, which increases their frequency and magnitude. Improving power grid resilience can help mitigate the damages caused by these events. Mobile energy storage systems, classified as truck-mounted or towable battery storage systems, have recently been considered to enhance distribution grid resilience by providing localized support to critical loads during an outage. Compared to stationary batteries and other energy storage systems, their mobility provides operational flexibility to support geographically dispersed loads across an outage area. This paper provides a comprehensive and critical review of academic literature on mobile energy storage for power system resilience enhancement. As mobile energy storage is often coupled with mobile emergency generators or electric buses, those technologies are also considered in the review. Allocation of these resources for power grid resilience enhancement requires modeling of both the transportation system constraints and the power grid operational constraints. These aspects are discussed, along with a discussion on the cost–benefit analysis of mobile energy resources. The paper concludes by presenting research gaps, associated challenges, and potential future directions to address these challenges.
DIVERSITY OF ANTIBODIES TO TYPE II COLLAGEN IN PATIENTS WITH RHEUMATOID ARTHRITIS: DETECTION BY BINDING TO α-CHAINS AND TO CYANOGEN BROMIDE PEPTIDES (1990)

Antibodies to denatured type II collagen were detected in the sera of a group of patients with rheumatoid arthritis by ELISA and by immunoblotting. The antibodies were further examined by immunoblotting against cyanogen-bromide derived peptides of type II collagen. The majority of sera reacted against only one or two peptides and antibodies to the CB-10 and CB-11 peptides were those most commonly found. However, some sera reacted with up to eight peptides, indicating that patients had antibodies to differing combinations of epitopes on type II collagen. Examination of sequential serum samples from an individual patient showed that there were changes in the class of antibody produced to type II collagen and that antibodies to different peptides were preferentially produced at different times in the course of the disease. Thus there was a selective response to different peptides of type II collagen not only between patients but also at different times in the course of disease in the same patient.
Industrial Robot Design Optimization in the Conceptual Design Phase (2004)

Robot manufacturers, like many other manufacturers, are experiencing increasing competition in a global market where one way to confront the challenge is by making the development process more efficient. One way to speed up the time to market for new products is to take advantage of design optimization based on simulation models. By optimizing performance with the help of dynamic simulation, an immense amount of both time and money may be saved. In this thesis, design optimization strategies for industrial robot design are studied. Often, the trade-offs between performance, cost and quality are essential for design decisions. These tradeoffs can be investigated with the help of simulation models. Generating the trade-offs can be both cumbersome and time-consuming, but the process may be partly automated with the help of optimization algorithms. How the optimization problem needs to be formulated to generate the trade-off is discussed in this thesis. Robot design problems usually consist of a mixture of deciding continuous parameters as well as selecting components from catalogs and databases. Hence, there is a need for optimization algorithms which can handle variables of both a discrete and a continuous nature. A new method has been developed to address this problem. The method has also been improved by adding adaptive characteristics for further efficient design optimization. The ideas in this thesis have been applied to both simulation models of conceptual degrees of elaboration as well as simulation models of complete robot systems. An optimization procedure which shows how optimization can be used in the early phases of a development process is developed. The objective of the optimization is to determine optimal gearboxes and arm lengths from an acceleration capability perspective. An optimization based design method for robot drive trains is also presented. For further efficient use of already installed robots the concept of application adapted performance optimization is introduced. This means that the robot control is optimized with respect to thermal and fatigue load for the specific program that the robot performs. The motion program itself, i.e. the path planning, can be optimized at the same time in order to get the most out of the robot.
Constant Frequency ZVS PWM Converter (2021)

In this paper, a simple yet novel buck or boost adaptive zero-voltage switching (ZVS) converter topology is proposed for soft switching pulse-width modulation (PWM) dc / dc converters. The converter is designed for the high switching frequency that can achieve high efficiency by reducing switching losses for the entire load range at low and high power. Besides, the output at the load terminals is maintained by a PWM signal at a fixed switching frequency, a phase shift signal between converter ports (legs) controls the system circulating current in order to provide the ZVS condition in all load conditions. With the proposed controller, the converter, thus, is suitable for high switching frequency and high-power applications with the small volume. The proposed dc / dc converter operation is analyzed, designed, and confirmed by simulation results for 240 V input, 400 V / 5 A output, and 200 kHz operating frequency at full load.
The helical domain of a G protein α subunit is a regulator of its effector (1998)

The alpha subunit (Galpha) of heterotrimeric G proteins is a major determinant of signaling selectivity. The Galpha structure essentially comprises a GTPase "Ras-like" domain (RasD) and a unique alpha-helical domain (HD). We used the vertebrate phototransduction model to test for potential functions of HD and found that the HD of the retinal transducin Galpha (Galphat) and the closely related gustducin (Galphag), but not Galphai1, Galphas, or Galphaq synergistically enhance guanosine 5'-gamma[-thio]triphosphate bound Galphat (GalphatGTPgammaS) activation of bovine rod cGMP phosphodiesterase (PDE). In addition, both HDt and HDg, but not HDi1, HDs, or HDq attenuate the trypsin-activated PDE. GalphatGDP and HDt attenuation of trypsin-activated PDE saturate with similar affinities and to an identical 38% of initial activity. These data suggest that interaction of intact Galphat with the PDE catalytic core may be caused by the HD moiety, and they indicate an independent site(s) for the HD moiety of Galphat within the PDE catalytic core in addition to the sites for the inhibitory Pgamma subunits. The HD moiety of GalphatGDP is an attenuator of the activated catalytic core, whereas in the presence of activated GalphatGTPgammaS the independently expressed HDt is a potent synergist. Rhodopsin catalysis of Galphat activation enhances the PDE activation produced by subsaturating levels of Galphat, suggesting a HD-moiety synergism from a transient conformation of Galphat. These results establish HD-selective regulations of vertebrate retinal PDE, and they provide evidence demonstrating that the HD is a modulatory domain. We suggest that the HD works in concert with the RasD, enhancing the efficiency of G protein signaling.
Comments on “Review of Acoustics—Historical and Philosophical Development, R. B. Lindsay, Ed.” [V. O. Knudsen, J. Acoust. Soc. Am. 55, 685 (1974)] (1974)

The function of resonators in ancient theatres is discussed with the aim of interpreting Vitruvius's description of their use.
Quadrature &amp; frequency diverse terahertz imaging with metamaterials (2015)

Compressive sensing is an exciting approach to imaging and promises to make significant advance in the terahertz regime. However, compressive imaging is commonly implemented is such that acquisition proceeds in a serial manner, thus leading to unrealistic frame rates. We propose and demonstrate a new approach to terahertz single pixel imaging using all-electronic metamaterial spatial light modulators. Our technique is deterministic and permits parallel acquisition, resulting in a significant advance in image fidelity and frame rates compared to alternative approaches.
Organo-Lewis acid as cocatalyst for cationic homogeneous Ziegler-Natta olefin polymerizations (2023)

A cationic metallocene complex with trisperfluorobiphenyl borate for use as a polymerization catalyst.
An integrated 4249 marker FISH/RH map of the canine genome (2004)

These results provide a necessary resource for the canine genome mapping community to undertake positional cloning experiments and provide new insights into the comparative canine-human genome maps.
Ripple cancellation filter for magnetic resonance imaging gradient amplifiers (2004)

A ripple cancellation technique used on a magnetic resonance imaging (MRI) gradient switching amplifier eliminates switching frequency ripple of the output voltage and current. A new concept requiring only passive components for ripple cancellation in dc power supplies (M.J. Schutten and R.L. Steigerwald, 2003) has been modified for application to an MRI gradient amplifier. The paper presents the circuit changes and the design procedure to accommodate an almost purely inductive load, and arbitrary output waveform of the amplifier. The experimental results show attenuation more than 10/spl times/ greater than what could be achieved with comparable size conventional filtering techniques. The proposed circuit greatly improves the performance of a switched amplifier for gradient coils in MRI systems. The application of this concept is not restricted to gradient amplifiers; it will also directly apply to other type of amplifiers driving inductive loads such as switched audio amplifiers driving a speaker coil.
The Role of Superoxide Dismutase in Regulating the Light Emission of Luminescent Fungi (1992)

Luminescent fungi spontaneously emit light during certain stages of their life cycles. Most of them are luminous during a part of their mycelial stage, but not many of them are luminous when they form fruiting bodies. In the case of Panellus stipticus, both the mycelium and the fruiting body can be luminous, and the emission of light takes place when its luciferin is aerobically oxidized in the presence of the superoxide anion (O 2 - ) and a cationic surfactant. It is highly likely that the luminescence reactions of all kinds of luminous fungi are basically the same as that of P. stipticus
The transcriptional response of human endothelial cells to infection with Bartonella henselae is dominated by genes controlling innate immune responses, cell cycle, and vascular remodelling (2005)

The bacterial pathogen Bartonella henselae (Bh) is responsible for a broad range of clinical manifestations, including the formation of vascular tumours as the result of pathogen-triggered vasoproliferation. In vitro, the interaction of Bh with human umbilical vein endothelial cells (Huvec) involves (i) cytoskeletal rearrangements in conjunction with bacterial internalization, (ii) nuclear factor kappaB (NFkappaB)-dependent proinflammatory activation, (iii) the inhibition of apoptosis, and (iv) the modulation of angiogenic properties such as proliferation, migration, and tubular differentiation. To study the transcriptional signature of these pathogen-triggered changes of Huvec, we performed transcriptional profiling with Affymetrix U133 GeneChips. At 6 h or 30 h of infection, a total of 706 genes displayed a clear and statistically significant change of expression (>2.5-fold, t-test p-value<0.05). These included 314 up-regulated genes dominated by the innate immune response. The gene list comprises subsets of tumour necrosis factor alpha (TNFalpha, 99 genes) and interferon alpha (IFNalpha, 30 genes) inducible genes, which encode components of the NF-kappaB-dependent proinflammatory response and the type I IFN-dependent anti-infective response, respectively. The remaining set of 197 up-regulated genes mirrors other cellular changes induced by Bh, in particular proliferation and proangiogenic activation. The set of 362 down-regulated genes includes 41TNFalpha - or IFNalpha-suppressible genes, and 52 genes involved in cell cycle control or progression. This comprehensive analysis of Bh-triggered changes of the Huvec transcriptome identified candidate genes putatively involved in controlling innate immune responses, cell cycle, and vascular remodelling, and may thus provide the basis for functional studies of the molecular mechanisms underlying these pathogen-induced cellular processes.
Controlled growth of core@shell heterostructures based on Prussian blue analogues (2011)

This work aims to develop a controlled strategy for the growth of multifunctional core@shell nanoparticles based on Prussian blue analogues. We mainly focussed our attention on Rb0.45Co[Fe(CN)6]0.8·3H2O@Rb0.2Ni[Cr(CN)6]0.7·zH2O particles, which combine a photoswitchable (photo-magnetic/-chromic) core with a ferromagnetic shell. The control of the chemical composition in the heterostructure is a key point to obtain the expected magnetic, optical and structural properties. We found that the removal of the unreacted species by washing after the growth of the primary particles led to an irreversible aggregation attributed to the desorption of stabilizing [Fe(CN)6] surface units. We showed that this difficulty could be overcome by washing the particles in a solution containing chromicyanide ions, which are precursors of the Rb0.2Ni[Cr(CN)6]0.7·zH2O shell phase, thus avoiding a contamination of the shell. Both X-ray diffraction and magnetic measurements confirmed that a controlled shell of the desired composition could be obtained this way.
Forum: research in National Parks (2004)

New benzyliminoether derivatives [PtCl2{N(H)=C(OMe)CH2Ph}2] of cis (1a, 1b) and trans (2a, 2b) geometry were prepared and characterized by means of elemental analysis, multinuclear NMR and FT-IR techniques, and X-ray crystallography; this latter was carried out for 1b. The cytotoxic properties of these new platinum(II) complexes were evaluated in terms of cell growth inhibition against a panel of different types of human cancer cell lines. cis-[PtCl2{E-N(H)=C(OMe)CH2Ph}2] (1a) was significantly more potent than cisplatin against all tumor cell lines tested, showing IC50 values from about 2- to 17-fold lower than the reference compound. Chemosensitivity tests performed on cisplatin-sensitive and -resistant cell lines have demonstrated that complex 1a is able to overcome cisplatin resistance. Analyzing the mechanism by which complex 1a led to cell death, we have found that it induced apoptosis in a dose-dependent manner, accompanied by the activation of caspase-3. The in vivo studies carried out using two transplantable tumor models (L1210 leukemia and Lewis lung carcinoma) showed that derivative 1a induced a remarkable antitumor activity in both tumor models, as measured by prolonged survival and reduced tumor mass compared to control groups.
Degradation of speaker identification for LPC formant-coded speech (1990)

Degradation of speaker characteristics for LPC formant-coded speech was measured with a speaker identification experiment. Spontaneous speech spoken by 14 speakers was analyzed and synthesized with two LPC speech-coding schemes using 2.4 and 12 kbit/s, respectively. PCM-coded speech (120 kbit/s) served as reference speech. Here 20 subjects had to identify the speakers by listening to the utterances. Listeners' familiarity with speakers was scaled before the experiment. The percentage that correctly identified speakers differs signficantly for the three speech types and depends on familiarity. The degradation of speaker identification can also be expressed by the index of loss in voice recognition. This index is defined as the ratio of the percentage correctly identified LPC voices and the percentage correctly identified PCM voices. The index is a function of familiarity only for 2.4 kbit/s LPC speech. If familiarity is controlled, the speaker identification test provides a suitable method for evaluating speech-coding techniques with respect to voice recognition. [Work supported by the Dutch government as part of the national SPIN program “Analysis and synthesis of speech.”]
Improved polyvinylpyrrolidone (PVP)/graphite nanocomposites by solution compounding and spray drying (2011)

Abstract In order to evaluate the roles of graphite dispersion on the functional properties of the composites, PVP/graphite nanocomposites were prepared by blending the aqueous suspension of expanded graphite sheets and polyvinylpyrrolidone (PVP) aqueous solution by ultrasonic treatment, followed by spray drying and direct drying as a comparison individually. The effects of graphite loading and drying method on the dispersion of graphite and the resultant properties of the composites such as electrical and thermal conductivity, friction, and dynamic mechanical properties were studied. The results from transmission electron microscopy (TEM), scanning electron microscopy (SEM), and X‐ray diffraction showed that the composites prepared by fast spray drying exhibited a higher degree of exfoliation and a better dispersion of graphite sheets in the PVP matrix than the corresponding composites prepared by direct drying, leading to a conclusion that fast spray drying can effectively prevent from re‐stacking of the exfoliated graphite sheets as illustrated. As a result, dynamic mechanical thermal analysis showed significant increases in the storage modulus and glass transition temperature for the composites prepared by spray drying. Besides, the spray drying as well greatly improved the electrical and thermal conductivity of the composites. It was also found that the electrical and thermal conductivity of the composites strongly depended on the graphite dispersion, while the friction coefficient unexpectedly does not. Increasing graphite loading level might enhance the probability of graphite sheets re‐stacking, resulting in poor graphite dispersion. Copyright © 2011 John Wiley &amp; Sons, Ltd.
Tuning of Photonic Crystal Waveguide Microcavity by Thermooptic Effect (2004)

A tunable photonic crystal microcavity with in-filling holes has been experimentally realized by using the thermooptic effect in silicon-on-insulator waveguide at /spl lambda/=1530 nm. The device was fabricated by reactive ion etching through the silicon core layer for high vertical confinement. A thin film heater has been integrated onto the microcavity. A small change in temperature (and consequent change in refractive index) was sufficient to cause an observable resonance shift. A resonance shift of 5 nm was achieved when the heater was switched on to a current of 1.2 mA (with switching power of about 9 mW).
Coronary Artery Spasm In The Transplanted Human Heart A Case Report (1996)

This report describes a patient manifesting spontaneous and catheter-induced coronary artery spasm in a transplanted, denervated heart. This diagnosis should be considered in patients undergoing posttransplant coronary angiography. Intracoronary nitroglycerin should routinely be administered prior to coronary artery injections during posttransplant angiography.
Epidemiology of EnterotoxigenicEscherichia coliDiarrhea in a Pediatric Cohort in a Periurban Area of Lower Egypt (1999)

Enterotoxigenic Escherichia coli (ETEC) are diverse pathogens that express heat-labile (LT) and/or heat-stable (ST) enterotoxins, yet little is known about whether epidemiologic patterns of pediatric ETEC diarrhea vary by the expressed ETEC toxin phenotype. In total, 242 Egyptian children aged <3 years were prospectively followed in 1993-1995. ETEC episodes were detected during twice-weekly home visits, and asymptomatic ETEC excretion was identified from monthly cross-sectional surveys. ETEC episodes were 0.6 per child-year. ST-only ETEC was 2.6 times (P<.001) more common in warmer than cooler months, while LT-only ETEC showed no seasonal variation. Ownership of a household sanitary latrine, but not breast-feeding, was associated with a lower risk of both enterotoxin phenotypes. Coexpression of a colonization factor by LT- or ST-only ETEC strengthened the association with diarrhea. These findings indicate that the epidemiologic patterns of LT-only and ST-only ETEC are not identical and that disease interventions should include improved household sanitation.
Rheological study of sludge of membranes bioreactors for water treatment: protocol, limitations and link with the filtration (2011)

The submerged membranes bio-reactors (sMBR) are more and more visible in the field of waste water treatment. The membrane fouling, that causes a drastic fall of the performances, can be limited by the application of a swarm of bubbles close to the membrane surfaces. This aeration as a major factor of the energetic expense of these processes, lets numerous studies to focus on the understanding of the mechanisms linking the bubbles swarm with fouling.. In this background, the rheological tools appeared to be useful to understand the behaviour of sludge under shear stress. In order to be sure to get significant results, we used three types of rheological measurements: i) the influence of shear rate on shear stress; ii) the influence of upward then downward stages of shear stress on viscosity; iii) the influence of the alternation of two stages of shear stress with implementation times identical to those of sMBR aeration. Besides a viscoplastic behaviour previously observed, a phenomenon of hysteresis appeared. The transparent upper plan used on the rheometer exhibited formations of aggregative structures “in roll”. Sludges of a sMBR using different sequencing of aeration are compared: the developed protocols enabled to differentiate those sludges, with characteristic results depending on mechanical applications. The aim of this work is, eventually, to propose some correlations between usual characteristics of the process and aeration operating parameters, in order to propose an aeration policy improving energetic performances.
Clarifying Trust in Social Internet of Things (2017)

A social approach can be exploited for the Internet of Things (IoT) to manage a large number of connected objects. These objects operate as autonomous agents to request and provide information and services to users. Establishing trustworthy relationships among the objects greatly improves the effectiveness of node interaction in the social IoT and helps nodes overcome perceptions of uncertainty and risk. However, there are limitations in the existing trust models. In this paper, a comprehensive model of trust is proposed that is tailored to the social IoT. The model includes ingredients such as trustor, trustee, goal, trustworthiness evaluation, decision, action, result, and context. Building on this trust model, we clarify the concepts of trust in the social IoT in five aspects such as: 1) mutuality of trustor and trustee; 2) inferential transfer of trust; 3) transitivity of trust; 4) trustworthiness update; and 5) trustworthiness affected by dynamic environment. With network connectivities that are from real-world social networks, a series of simulations are conducted to evaluate the performance of the social IoT operated with the proposed trust model. An experimental IoT network is used to further validate the proposed trust model.