gebhart/patrepeval huggingface dataset:
Joint Beam Management and Power Allocation in THz-NOMA Networks (2023)

This paper investigates how to apply non-orthogonal multiple access (NOMA) as an add-on in terahertz (THz) networks. In particular, prior to the implementation of NOMA, it is assumed that there exists a legacy THz system, where spatial beams have already been configured to serve legacy primary users. The aim of this paper is to study how these pre-configured spatial beams can be used as a type of bandwidth resources, on which additional secondary users are served without degrading the performance of the legacy primary users. A joint beam management and power allocation problem is first formulated as a mixed combinatorial non-convex optimization problem, and then solved by two methods with different performance-complexity tradeoffs, one based on the branch and bound method and the other based on successive convex approximation. Both analytical and simulation results are presented to illustrate the new features of beam-based resource allocation in THz-NOMA networks and also demonstrate that those pre-configured spatial beams can be employed to improve the system throughput and connectivity in a spectrally efficient manner.
Electrolytic Capacitor Anodes Derived from Tantalum-Titanium and Niobium-Titanium Alloys (1965)

Porous sheets of tantalum or niobium can be prepared by volatilization of titanium from sheets of tantalum‐titanium or niobium‐titanium alloys at high temperatures in vacuum. Removal of titanium from the initial alloy results in significantly increased surface area, nearly all of which is available for anodic film formation. Conventional anodization of material prepared in this manner produces anode‐dielectric systems of excellent quality. Pore dimensions within the porous anodes are large with respect to anodic film thickness, and formation to 600v can be achieved with only minor loss of effective anode area.
Investigation of dominant spin wave modes by domain walls collision (2014)

Spin wave emission due to field-driven domain wall (DW) collision has been investigated numerically and analytically in permalloy nanowires. The spin wave modes generated are diagonally symmetric with respect to the collision point. The non-propagating mode has the highest amplitude along the middle of the width. The frequency of this mode is strongly correlated to the nanowire geometrical dimensions and is independent of the strength of applied field within the range of 0.1 mT to 1 mT. For nanowire with film thickness below 5 nm, a second spin wave harmonic mode is observed. The decay coefficient of the spin wave power suggests that the DWs in a memory device should be at least 300 nm apart for them to be free of interference from the spin waves.
Degree of Chemical Functionalization of Carbon Nanotubes Determines Tissue Distribution and Excretion Profile (2012)

So wird man die Röhren los: Die Retention funktionalisierter mehrwandiger Nanoröhren (MWNTs) in Mausorganen wurde durch berechnete Einphotonenemissionstomographie und quantitative Szintigraphie ermittelt (siehe Schema). Eine stärkere Funktionalisierung der MWNTs erhöhte die renale Clearance, während bei weniger starker Funktionalisierung eine Akkumulation im retikuloendothelialen System auftrat. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Mission Planning in a Web Environment (2002)

Mission Planning plays an essential role in space operations. It is a complex task and tends to be operator intensive, requiring a significant amount of time and thus producing considerable operations cost. A mission planning system must satisfy the need to grant visibility and access to internal data to all parties that are involved in the mission planning process. Bearing in mind that the environments of the user community and of the operations personnel in a control center may be very different in terms of electronic data processing, an approach to use Web techniques has considerable advantages. The GSOC Planning System is a well established and proven suite of tools that has been used in several space missions already. Based on this working system, the planning front-ends have been extended in a seamless transition to the Web. A Web-based planning data collection system, accompanied by a Web-based ground track visualization tool and a Web display for communicating the planning results has been implemented. The Web front-ends are sitting on top of the planning data base, which ensures data integrity and completeness. The future effort is aiming at expanding the GSOC Planning System to automate the planning process itself, which can further contribute to saving operations cost.
Neuroanatomical basis of paroxysmal sympathetic hyperactivity: A diffusion tensor imaging analysis (2015)

Disconnection involving the posterior corpus callosum and of the posterior limb of the internal capsule may play a role in the pathogenesis or expression of PSH.
Submicron Magnetizing and Its Detection Based on the Point Magnetic Recording Concept (1993)

Recent intensive studies by scanning probe microscope (SPM) on the recording and detection of extremely minute bit patterns have assumed increasing importance in the field of magnetic recording, because the sharp magnetic tip of the SPM can be used as a kind of micro-manipulator of magnetic domains. This paper investigates submicron magnetic bit recording and detection, in which the tip of a magnetic force microscope (MFM) is used as both the recording head and the magnetic field detector. In the recording procedure, the MFM tip and an excitation coil concentrate magnetic flux as the tip is brought into contact with the medium. When scanned above the medium, the mechanically modulated tip can easily be used to measure the magnetic force gradient by detecting changes in the tip modulation amplitude. Regions with a diameter of about 400 nm can be magnetized and can be erased by a reverse magneic field. Sharper tips will enable magnetization of even smaller regions.
Rational Substitution of ε-Lysine for α-Lysine Enhances the Cell and Membrane Selectivity of Pore-Forming Melittin (2020)

Here, we present a rational approach that enhances the membrane selectivity of a prolific pore-forming peptide, melittin, based on experimental observations that the cationic polymer, ε-polylysine, disrupts bacterial membranes with greater affinity over mammalian cells when compared to poly-l-lysine and poly-d-lysine. We systematically replaced three α-lysine residues in melittin with ε-lysine residues and identified key residues that are important for cytotoxicity. We then assessed the antimicrobial properties of the modified peptides which carry two or three ε-lysyl residues. Two modified melittin peptides displayed rapid bactericidal properties against antibiotic-resistant strains, low innate resistance development by pathogenic bacteria, remained nonimmunogenic for T lymphocytes, and increased bioavailability in tear fluids. In proof-of-concept <i>in vivo</i> experiments, one of the peptides was noncytotoxic for ocular surfaces and had comparable antimicrobial efficacy to that of fluoroquinolone antibiotics. The results uncover a simple and potential strategy that can enhance the membrane selectivity of cytolytic peptides by ε-lysylation.
Synthesis of Mesoionic 1,2,3,5-Thiatriazoles. (1988)

Synthese de methyl-3 α-aryl thiatriazole-1,2,3,5io-3amidures-4 par reaction du chlorure de thionyle et d'amino-1 aryl-3 methyl-1 guanidines dans la pyridine suivie d'un traitement basique
Clinical pilot study: efficacy of triple antibiotic therapy in (2014)

Blastocystis species are common human enteric parasites. Carriage has been linked to Irritable Bowel Syndrome (IBS). Treatment of Blastocystis spp. with antimicrobials is problematic and insensitive diagnostic methods and re-infection complicate assessment of eradication. We investigated whether triple antibiotic therapy comprising diloxanide furoate, trimethoprim/sulfamethoxazole and secnidazole (TAB) given to diarrhoea-predominant IBS (D-IBS) patients positive for Blastocystis would achieve eradication. In a longitudinal, prospective case study 10 D-IBS Blastocystis-positive patients took 14 days of diloxanide furoate 500 mg thrice daily, trimethoprim/sulfamethoxazole 160/80 mg twice daily and secnidazole 400 mg thrice daily. Faecal specimens were collected at baseline, day 15 and 4 weeks after completion of TAB. Specimens were analysed using faecal smear, culture and polymerase chain reaction (PCR) of the 16 SSU rRNA. Patients kept a concurrent clinical diary. Six (60%) patients cleared Blastocystis spp. after TAB, including three who had failed previous therapy. Subtypes detected were ST3 (60%), ST4 (40%), ST1 (20%) and ST7, 8 (10%); four patients had mixed ST infections. Serum immunoglobulin A (IgA) levels were low in 40% of patients. Higher rates of Blastocystis clearance were observed in patients symptomatic for less than a year (Mann-Whitney, p?=?0.032, 95% confidence) with no associations found with age, previous antibiotic therapy, faecal parasite load, ST, IgA level or clinical improvement. Clearance of Blastocystis spp. was achieved with TAB in 60% of D-IBS patients, an improvement over conventional monotherapy. Higher clearance rates are needed to facilitate investigation of the relevance of this parasite in clinically heterogenous IBS.
Computed Tomography Measurements of Perfusion in Cancer Therapy (2007)

Computed tomography (CT) remains one of the mainstay techniques for anatomical evaluation of tumor growth and response to therapy, both in clinical practice and drug trials (see Chapter 3). Computed tomography measurements of perfusion can be added to a conventional CT examination to provide a functional response assessment within the same examination. This combined approach can overcome some of the limitations of a purely structural evaluation, such as slow response to therapy and residual nonmalignant masses, while avoiding the inconvenience to the patient and additional cost of further examinations using different imaging modalities. Furthermore, as positron emission tomography (PET) systems are now commonly integrated with CT, functional CT techniques can be combined with PET evaluations of tumor physiology using a single imaging device.
Network flow based circuit partitioning for time-multiplexed FPGAs (1998)

Article Free Access Share on Network flow based circuit partitioning for time-multiplexed FPGAs Authors: Huiqun Liu Department of Computer Sciences, University of Texas at Austin, TX Department of Computer Sciences, University of Texas at Austin, TXView Profile , D. F. Wong Department of Computer Sciences, University of Texas at Austin, TX Department of Computer Sciences, University of Texas at Austin, TXView Profile Authors Info & Claims ICCAD '98: Proceedings of the 1998 IEEE/ACM international conference on Computer-aided designNovember 1998 Pages 497–504https://doi.org/10.1145/288548.289077Published:01 November 1998Publication History 42citation351DownloadsMetricsTotal Citations42Total Downloads351Last 12 Months35Last 6 weeks2 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteeReaderPDF
Fundamental Study on Development of Polymer Nano-Film Synthesized on Self-Assembled Phospholipid Layer Fabricated by Plasma-Assisted Method (2018)

The morphology of polymer nano-film in organic solvents and water was studied by 1H-NMR and atomic force microscope (AFM) measurement. 1H-NMR spectra of polymer nano-film in CD3OD suggested that the crosslinking and stearic acid moiety could freely move. It was also shown that the morphology of polymer nano-film in CDCl3 might be cylindrical or spherical structure with stearic acid moiety as outer shell, and that in D2O the stearic acid moiety might exist in the inner core. It was also indicated from AFM images that polymer nano-film kept a spread form in methanol and a particle-like shape in chloroform and water.
Cerebral Arterial Bolus Arrival Time is Prolonged in Multiple Sclerosis and Associated with Disability (2013)

Alterations in the overall cerebral hemodynamics have been reported in multiple sclerosis (MS); however, their cause and significance is unknown. While potential venous causes have been examined, arterial causes have not. In this study, a multiple delay time arterial spin labeling magnetic resonance imaging sequence at 3T was used to quantify the arterial hemodynamic parameter bolus arrival time (BAT) and cerebral blood flow (CBF) in normal-appearing white matter (NAWM) and deep gray matter in 33 controls and 35 patients with relapsing-remitting MS. Bolus arrival time was prolonged in MS in NAWM (1.0±0.2 versus 0.9±0.2 seconds, P=0.031) and deep gray matter (0.90±0.18 versus 0.80±0.14 seconds, P=0.001) and CBF was increased in NAWM (14±4 versus 10±2 mL/100 g/min, P=0.001). Prolonged BAT in NAWM (P=0.042) and deep gray matter (P=0.01) were associated with higher expanded disability status score. This study demonstrates alteration in cerebral arterial hemodynamics in MS. One possible cause may be widespread inflammation. Bolus arrival time was longer in patients with greater disability independent of atrophy and T2 lesion load, suggesting alterations in cerebral arterial hemodynamics may be a marker of clinically relevant pathology.
Atmospheric-pressure plasma CVD of TiO2photocatalytic films using surface dielectric barrier discharge (2008)

Surface dielectric barrier discharge (DBD) was used for atmospheric-pressure plasma CVD of TiO2 films from TiCl4 and O2 for the first time. Under this experiment, the deposition rate was estimated at 22 nm min−1 by scanning electron microscope observation and the as-deposited TiO2 films were amorphous as evidenced by Raman analysis. The photocatalytic application of TiO2 films in removing HCHO from simulated air was examined in a continuous flow reactor. The TiO2 films after calcination at 350 or 450 °C were notably photocatalytically active for complete oxidation of formaldehyde to an innocuous product (CO2), which was consistent with the results of Raman analysis. Using the TiO2 films, an extremely harmful by-product, CO, was not detected from photocatalytic oxidation of HCHO in a simulated air stream.
Nonstationary effects in ozone generation by barrier discharges in N2/O2 mixtures (2016)

The yield of ozone in barrier discharges in oxygen–nitrogen mixtures containing 0.001 to 40% of nitrogen is investigated experimentally. Phenomena of the nonstationarity of processes of ozone generation that differ from the known ozone-zero phenomenon (OZP) apparent in the reduced efficiency of ozone generation in very high purity oxygen at long periods (from hours to tens of hours) of ozonator operation are found. It is established that the characteristic times (from minutes to tens of minutes) of ozone attaining stationary values after changes in the discharge parameters indicate slow adjustment of the surface condition of insulators and thus the heterogeneous decay of ozone to more rapidly changing flows of neutral and charged particles from gas discharge plasma on the surfaces of dielectrics. The possibility of such a scenario is confirmed using a new analytical approach and numerical calculations of the plasma–chemical kinetics of N2/O2 mixtures presented in the accompanying theoretical study.
Microplastic emission characteristics of stormwater runoff in an urban area: Intra-event variability and influencing factors (2023)

Stormwater runoff is considered a major pathway for land-based microplastic transportation to aquatic environments. By applying time-weighted stormwater sampling at stormwater outlets from industrial and residential catchments, we investigated the emission characteristics and loads (number- and mass-based) of microplastics to aquatic environments through urban stormwater runoff during rainfall events. Microplastics were detected in stormwater runoff from industrial and residential catchments in the concentration range of 68-568 n/L and 54-639 n/L, respectively. Polypropylene and polyethylene were found as major polymers accounting for around 60% of total microplastics. The fragment was the dominant shape of microplastics, and the most common size class were 20-100 &amp;#956;m or 100-200 &amp;#956;m. The microplastic load emitted from industrial and residential catchments were estimated to be 1.54 - 46.1 x 108 and 0.63 - 28.5 x 108 particles, respectively. The discharge characteristics of microplastics inter&amp;#8211; and intra&amp;#8211;event were affected by the land-use pattern and rainfall characteristics. The concentration of microplastics did not significantly differ between industrial and residential catchments, but the composition of polymer types reflected the land-use pattern. The microplastics in stormwater were more concentrated when the number of antecedent dry days (ADDs) was higher; the concentration of microplastics was generally peaked in the early stage of runoff and varied according to rainfall intensity during a rainfall event. The contamination level and load of microplastics were heavily affected by the total rainfall depth. Most microplastics were transported in the early stage of runoff (19&amp;#8211;37% of total runoff time), but the proportion of larger and heavier particles increased in the later period of runoff. The microplastic emission via stormwater runoff was significantly higher than that through the discharge of wastewater treatment plant effluent in the same area, implying that stormwater runoff is the dominant pathway for transporting microplastics to aquatic environments.&amp;#160;&amp;#160;
Direct laser trapping of single globular DNA molecules (1999)

We show herein that a single T4 phage DNA molecule which was transformed from coiled to globular state, was trapped directly by Nd:YAG laser (1064 nm). We also estimated trapping force of globular DNA molecules.
Collaborative Multimedia Content Caching Algorithms for Mobile Ad-Hoc Networks (2009)

In this paper, we address the problem of collaborative video caching in mobile ad-hoc networks. We consider network portraying static video server with wired interface to gateway node that is equipped with wireless interfaces, other nodes are requiring access to the video streams that is stored at video server. In order to reduce the average access latency as well as enhance the video accessibility, efficient video caching placement and replacement strategies are crucial at some of the distributed intermediate nodes across the network. Virtual backbone caching nodes will be elected by executing caching placement algorithm after running the routing protocol phase. The simulation results indicate that the proposed collaborative aggregate cache mechanism can significantly improve the video QoS in terms of packet loss and average packet delay.
Safe and Adaptive Social Robots for Children with Autism (2020)

Social robots are being considered to be a part of the therapy for children with autism due to the reported efficacy such technology in improving the outcomes. How ever, children diagnosed with autism exhibit challenging behaviors that could cause harm to themselves and to others around them. Throwing, hitting, kicking, and self harming are some examples of the challenging behaviors that were reported to occur among this population. The occurrence of such behaviors during the presence of a social robot could raise some safety concerns. For this reason, this research attempts toidentify the potential for harm due to the diffusion of social robots and investigate means to mitigate them. Considering the advancement in technology and the progress made in many computer science disciplines are making small and adaptable social robots a foreseeable possibility, the studies presented here focus on small robotic form factors.The first study quantities the potential harm to the head due to one of the identi?ed risky scenarios that might occur between a child and a social robot. The results re leaved that the overall harm levels based on the selected severity indices are relatively low compared to their respective thresholds. However, the investigation of harm due to throwing of a small social robot to the head revealed that it could potentially causet issue injuries, sub-concussive or even concussive events in extreme cases. The second two studies are aimed to make small robots safer by optimizing their design. Hence,studies are conducted investigating how robot design can be made safer by investigating different design factors. The study investigated the in?uence of the mass and shape on the linear acceleration of a developed dummy head. The results revealed that the two design factors considered (i.e. mass and shape) affected the resultant response. The second study investigated the in offence three different soft material sonthesa meresponse. The endings showed that the control factors considered are not statistically significant in attenuating the response. Finally, the last two studies attempt to make small robots more adaptable to promote safer interactions. This is carried out by em bedding the recognition of unwanted physical interactions into companion robot with the appropriate timing of responses. The findings of the first study highlight the pos sibility of characterizing children's negative interactions with robotic toys relying on accelerometer sensor. The second study showed that producing a late response to an action (i.e. greater than 1.0 s) could negatively affect the children's comprehension of the intended message. The work presented in this dissertation is multidisciplinary that involves the field of Mechanical Engineering and Information Technology.
Diffraction Studies of Photoexcited Crystals:  Metastable Nitrosyl-Linkage Isomers of Sodium Nitroprusside (1997)

The geometries of two known metastable states of sodium nitroprusside dihydrate, Na2[Fe(CN)5NO]·2H2O, and that of the ground state have been analyzed by X-ray diffraction at 50 K, a temperature at which no decay of metastable-state concentration with time is observed. Data were collected on two laser-excited crystals containing populations of ∼37% of metastable state I (MS1) and ∼10% of metastable state II (MS2), respectively, using imaging plates and a rotating anode source. For MS1 the apparent geometry changes upon excitation, determined earlier at 138 K (Pressprich, M. R.; White, M. A.; Vekhter, Y.; Coppens, P. J. Am. Chem. Soc. 1994, 116, 5233−5238), are confirmed. However, reinterpretation of the diffraction data points to a linear, oxygen-bound isonitrosyl geometry of this species with Fe−O and N−O distances of 1.715(5) and 1.140(7) Å, respectively. The diffraction evidence points to a geometry for the MS2 species in which NO is sideways bound (η2), with Fe−N, Fe−O, and N−O distances of 1.89(2), 2.07(2), and 1.14(2) Å, respectively, compared with 1.6656(7) and 1.133(1) Å for Fe−N and N−O in the ground state. The three geometries correspond to minima in the nondissociative end-over-end linkage isomerization pathway of a diatomic molecule proposed by Armour and Taube for N2 (Armor, J. N.; Taube, H. J. Am. Chem. Soc. 1970, 92, 2560−2561).