gebhart/patrepeval huggingface dataset:
New bounds on the sedimentation velocity for hard, charged and adhesive hard-sphere colloids (2011)

The sedimentation velocity of colloidal dispersions is known from experiment and theory at dilute concentrations to be quite sensitive to the interparticle potential with attractions/repulsions increasing/decreasing the rate significantly at intermediate volume fractions. Since the differences necessarily disappear at close packing, this implies a substantial maximum in the rate for attractions. This paper describes the derivation of a robust upper bound on the velocity that reflects these trends quantitatively and motivates wider application of a simple theory formulated for hard spheres. The treatment pertains to sedimentation velocities slow enough that Brownian motion sustains an equilibrium microstructure without large-scale inhomogeneities in density.
An infrared study of intramolecular hydrogen-bonding in the histamine H2-receptor antagonists, burimamide, metiamide, cimetidine, and related compounds (1980)

The i.r. spectra of N-methyl-N′-[4-(5-methylimidazol-4-yl)butyl]thiourea (methylburimamide), N-(4-imidazol-4-ylbutyl)-N′-methylthiourea (burimamide), N-methyl-N′-{2-[(5-methylimidazol-4-yl)methylthio]ethyl}thiourea (metamide), N-{2-[(imidazol-4-yl)methylthio]ethyl}-N′-methylthiourea (thiaburimamide), and N-cyano-N′-methyl-N″-[2-(4-methyl-5-imidazolylmethyl)thieothyl]guanidine (cimetidine) in bromoform have been recorded in the 3 500–3 200 cm–1 region and compared with those of some closely related model compounds. The results show that all five compounds can form intramolecular hydrogen bonds in solution. Several possible hydrogen-bonded conformations are considered. Metiamide and thiaburimamide probably adopt an eight-membered ring conformation in which the basic imidazole nitrogen atom is hydrogen-bonded to the thiourea NH group nearer to the imidazole ring. The population of the hydrogen-bonded conformations increases when CH2 is replaced by S in the side chain.
Uncoupling nicotine mediated motoneuron axonal pathfinding errors and muscle degeneration in zebrafish (2008)

Zebrafish embryos offer a unique opportunity to investigate the mechanisms by which nicotine exposure impacts early vertebrate development. Embryos exposed to nicotine become functionally paralyzed by 42 hpf suggesting that the neuromuscular system is compromised in exposed embryos. We previously demonstrated that secondary spinal motoneurons in nicotine-exposed embryos were delayed in development and that their axons made pathfinding errors (Svoboda, K.R., Vijayaraghaven, S., Tanguay, R.L., 2002. Nicotinic receptors mediate changes in spinal motoneuron development and axonal pathfinding in embryonic zebrafish exposed to nicotine. J. Neurosci. 22, 10731-10741). In that study, we did not consider the potential role that altered skeletal muscle development caused by nicotine exposure could play in contributing to the errors in spinal motoneuron axon pathfinding. In this study, we show that an alteration in skeletal muscle development occurs in tandem with alterations in spinal motoneuron development upon exposure to nicotine. The alteration in the muscle involves the binding of nicotine to the muscle-specific AChRs. The nicotine-induced alteration in muscle development does not occur in the zebrafish mutant (sofa potato, [sop]), which lacks muscle-specific AChRs. Even though muscle development is unaffected by nicotine exposure in sop mutants, motoneuron axonal pathfinding errors still occur in these mutants, indicating a direct effect of nicotine exposure on nervous system development.
Rhodamine 6G and 800 intermolecular heteroaggregates embedded in PMMA for near-infrared wavelength shifting (2022)

Rhodamine 6G and 800 in PMMA matrices present enhanced fluorescence emission in the near-infrared originating from the formation of ground-state intermolecular heteroaggregates.
The Surgeon and AIDS (2005)

Improved surgical outcomes together with of accurate data on the modes and likelihood of accidental transmission of HIV to members of the surgery team have resulted in the treatment of HIV/AIDS patients becoming an accepted part of routine surgical practice.
'Experimental Optimization by Genetic Algorithm for Flow Separation Control with Surface Plasma Actuator (2015)

The present investigation concerns the active control of a turbulent separated flow downstream of a backward-facing step by surface plasma discharge. A single-objective genetic algorithm is implemented in order to achieve the minimization of the recirculation length. For that purpose, a series of unsteady pressure sensors installed on the bottom wall can detect the mean reattachment location. The optimized variables are the voltage amplitude, burst frequency and duty-cycle of the applied signal. Here, single-objective evolutionary algorithm, usually coupled to computational fluid dynamics simulation, is coupled with real-time experimental data for the first time. It is shown that the genetic algorithm is successful at finding the optimum forcing conditions for a turbulent flow at Re h=30000 (Re θ=1650). Then the optimal conditions are explored by time-resolved PIV in order to give physical explanations of the best input signal identified from the evolutionary algorithm. In particular, the present investigation confirms that minimization of the recirculation is achieved by forcing the flow periodically at the shear layer mode of instability. For this type of forcing, the shear layer evolution is strongly modified with a deep regularization of the vortical flow structures and the triggering of vortex pairing mechanism both promoting a shortened recirculation caused by enhanced turbulent momentum transfers.
THE MECHANISM OF INTRAGRANULAR MIGRATION OF BRINE INCLUSIONS IN SALT (1981)

The dislocation-controlled migration process is qualitatively consistent with all experiments designed to test the hypothesis. It also explains the very large scatter of the measured velocities of small inclusions in crystals of high perfection. Larger inclusions in natural salt crystals, on the other hand, are not limited by the number of dislocation intersections at the dissolving face and these inclusions appear to move at the rate predicted by liquid diffusion control.
The Penetration Enhancer SEPA<sup>TM</sup> Augments Stimulation of Scalp Hair Growth by Topical Minoxidil in the Balding Stumptail Macaque (1995)

The purpose of this study was to determine if the penetration enhancer SEPA (2-n-nonyl-1,3-dioxolane) would augment the scalp hair growth effects of topical minoxidil in the balding stumptail macaque. A 1-in2 area on the balding scalp of 40 adult female monkeys (four drug-treated and four vehicle-treated groups of 5 monkeys each) was topically treated 5 days/week, q.d. or b.i.d., with approximately 250 microliters of minoxidil-SEPA (2.5% minoxidil, weight/volume in 10% SEPA, 25% propylene glycol and 65% isopropyl alcohol), Rogaine topical solution (TS, 2% minoxidil, weight/volume in 20% propylene glycol, 60% ethanol and 20% water) or respective vehicles (without drug) for 16 weeks via paintbrush application. Scalp hair was collected by shaving and vacuuming the dosed area at baseline and at 4-week intervals. The shaved hair was filtered, weighed and recorded as the change from baseline. The q.d. and b.i.d. minoxidil-SEPA groups displayed a significant increase in hair weight compared to their respective vehicles at week 4 whereas q.d. and b.i.d. Rogaine TS groups were not active until week 8 and 12, respectively. Both minoxidil-SEPA treatments produced significantly greater cumulative hair weight over the entire 16-week study compared to either of the Rogaine TS treatments. Comparable increases in cumulative hair weight were evident between q.d. and b.i.d. minoxidil-SEPA groups and between q.d. and b.i.d. Rogaine TS groups.(ABSTRACT TRUNCATED AT 250 WORDS)
Semiconductor Carbon Nanotubes as Ultrafast Switching Materials for Optical Telecommunications (2003)

The third‐order nonlinear optical property χ (3) I of a film of single‐walled carbon nanotubes was studied in the infrared region. The film combines a high χ (3) I (–0.85 × 10 –7 esu at resonant wavelength) with a rapid transmittance recovery (from differential transmission spectra, see Figure), making it suitable for highly efficient and ultrafast devices for optical telecommunications.
TIME BEHAVIOR OF EXCITON FORMATION AND LASER EMISSION IN Cd(SeS) PLATELETS (1969)

Ultrathin (∼ 1 μm) Cd(SeS) platelets are excited with a mode-locked He–Ne laser and are shown to lase with a measured time delay of ∼ 10−9 sec. The measured delay agrees with the time required to redistribute optically generated electron-hole pairs uniformly through the sample thickness and to the proper density (1018/cm3) to form excitons.
Method of speech recognition with correlation of similarities (1995)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Kazuya Nomura, Taisuke Watanabe; Method of speech recognition with correlation of similarities. J. Acoust. Soc. Am. 1 July 1995; 98 (1): 32. https://doi.org/10.1121/1.413683 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAcoustical Society of AmericaThe Journal of the Acoustical Society of America Search Advanced Search |Citation Search
Use of the Radioreceptor Assay for Human Chorlonic Gonadotropin in the Diagnosis of Ectopic Pregnancy (1981)

Department of Obstetrics and Gynecology, College of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark, New Jersey
Cache-Centric Video Recommendation (2015)

In this article, we take advantage of the user behavior of requesting videos from the top of the related list provided by YouTube to improve the performance of YouTube caches. We recommend that local caches reorder the related lists associated with YouTube videos, presenting the cached content above noncached content. We argue that the likelihood that viewers select content from the top of the related list is higher than selection from the bottom, and pushing contents already in the cache to the top of the related list would increase the likelihood of choosing cached content. To verify that the position on the list really is the selection criterion more dominant than the content itself, we conduct a user study with 40 YouTube-using volunteers who were presented with random related lists in their everyday YouTube use. After confirming our assumption, we analyze the benefits of our approach by an investigation that is based on two traces collected from a university campus. Our analysis shows that the proposed reordering approach for related lists would lead to a 2 to 5 times increase in cache hit rate compared to an approach without reordering the related list. This increase in hit rate would lead to reduction in server load and backend bandwidth usage, which in turn reduces the latency in streaming the video requested by the viewer and has the potential to improve the overall performance of YouTube's content distribution system. An analysis of YouTube's recommendation system reveals that related lists are created from a small pool of videos, which increases the potential for caching content from related lists and reordering based on the content in the cache.
Image Processing Assisted Tools for Pre- and Post-processing Operations in Additive Manufacturing (2016)

Additive Manufacturing (AM) or 3D printing (3DP) process is a layer by layer manufacturing approach for manufacturing parts with complex geometries. The STL (Stereolithography) file format is the de-facto industry standard for manufacturing parts by AM/3DP. The STL file is a triangular mesh representation of CAD geometry in non-uniform rational B-spline (NURBS) surface format and thus is an approximation of actual part geometry. During the conversion of a complex CAD geometry to an STL file, geometric errors are introduced in the model. These drawbacks associated with the STL file may translate into a faulty or inaccurate final manufactured part. This paper presents a novel Image Processing (IP) based Direct CAD Slicer, IPSlicer, which can be used to manufacture components directly from CAD geometry (without converting to STL file). Using sectional image snapshots of a part, captured normal to the build direction and sectional 2D bounding box data, contour points for each section are identified by performing boundary tracing operation followed by application of Contour Mapping Algorithm (CMA). The method slices the actual NURBS geometry and thus parts manufactured by this method have reduced GD&T errors such as flatness, cylindricity, and profile error. In addition, a support removability analysis tool is developed by performing color-based segmentation on sectional image snapshots in conjunction with a pixel traversal approach. Using the segmented images and sectional bounding box, a sintering area and time calculation tool for each layer is also developed. The effectiveness of IPSlicer is verified by virtually manufacturing test components and calculating GD&T errors by the application of computational metrology algorithms on virtually manufactured data. The support removability analysis tool as well as sintering time and area calculator are validated using several test parts.
Spatial domain analysis based on human position and movement recognition for the top-view imaging systems (2019)

The smart home appliances are dramatically growing into a big part of the consumer electronics market and they are required to have many convenient functions for users. Therefore, many products are using top-view imaging systems for advanced technologies to recognize object positions and movement for human and machine interaction. Although the topview imaging system has already developed for many applications, not only home appliances but also closed-circuit televisions (CCTV) and unmanned aerial vehicles (UAV), it still has many drawbacks. Especially the top-view image shows asymmetrical features and radially distorted scenes around the corners like omnidirectional view images. Therefore, conventional human detection methods are struggled with the computational complexity and low accuracy to calibrate its artifacts. In this paper, we propose an efficient method to recognize spatial domain of human positions and movements based on motion vector detection using multiple feature maps on the top-view images. In the experimental results, we show efficient computation time and results of spatial domain detection qualitatively.
Detection and Estimation of Soy Flour in Wheat Flour (1960)

Journal Article Detection and Estimation of Soy Flour in Wheat Flour Get access Y Pomeranz, Y Pomeranz Kansas State University, Department of Flour and Feed Milling Industries, Manhattan, Kan Search for other works by this author on: Oxford Academic Google Scholar G D Miller G D Miller Kansas State University, Department of Flour and Feed Milling Industries, Manhattan, Kan Search for other works by this author on: Oxford Academic Google Scholar Journal of Association of Official Agricultural Chemists, Volume 43, Issue 2, 1 May 1960, Pages 442–444, https://doi.org/10.1093/jaoac/43.2.442 Published: 04 February 2020
O1‐04‐01: Multicentre phase 3 trial on florbetaben for beta‐amyloid brain PET in Alzheimer's disease (2012)

Validation of florbetaben PET as a diagnostic imaging biomarker of Alzheimer disease requires comparison between brain PET and post mortem tissue. 238 end-of-life patients were recruited from 17 centers across 4 continents. 204 of these individuals underwent MRI and florbetaben PET scanning. 10 healthy individuals were also included to support specificity. Cortical presence or absence of tracer uptake was determined by 3 independent blinded readers on a regional basis for 6 pre-specified regions and on a subject level taking into account a visual scoring method proposed for clinical practice. A total of 31 brains were included in the analysis. The brain autopsy was photo-documented in detail to allow for precise alignment of the tissue samples with the MRI/PET images. b-amyloid in the tissue was detected by silver-staining and immunohistochemistry and the presence or absence of b-amyloid in the cortical regions was determined by a consensus panel of 3 neuropathologists blinded to all clinical and imaging data. Comparison of the subject level analysis with the post mortem diagnosis yielded 100% sensitivity and 92% specificity. For the regional comparison florbetaben detected b-amyloid with a sensitivity of 77% and a specificity of 94%. The inter-reader agreement was 0.87 for the subject level comparison and 0.66 for the regional assessment, respectively. This global phase 3 trial confirmed that florbetaben PET can detect b-amyloid in the brain using a visual scoring method proposed for clinical practice with 100% sensitivity and 92% specificity. Moreover, this is the first study to have undergone: 1) a precise determination of b-amyloid status in post mortem cortical brain tissue, and an 2) exact determination of the presence or absence of PET tracer uptake. The results of this trial confirm that florbetaben is able to detect b -amyloid in the brain during life with a high sensitivity and specificity and thus, is a more than suitable as a biomarker for this purpose.
Essential role for endothelin ETB receptors in fever induced by LPS (E. coli) in rats (1998)

1. The influence of endothelin receptor antagonists on febrile responses to E. coli lipopolysaccharide (LPS), interleukin-1beta (IL-1beta), tumour necrosis factor-alpha (TNF-alpha) and endothelin-1 (ET-1) was assessed in conscious rats. 2. Intravenous (i.v.) LPS (5.0 microg kg(-1)) markedly increased rectal temperature to a peak of 1.30 degrees C over baseline at 2.5 h. Pretreatment with the mixed endothelin ET(A)/ET(B) receptor antagonist bosentan (10 mg kg(-1), i.v.) or the selective endothelin ET(B) receptor antagonist BQ-788 (N-cis-2,6-dimethylpiperidinocarbonyl-L-gamma-methylleucyl-D -1-methoxycarboyl-D-norleucine; 3 pmol, into a lateral cerebral ventricle-i.c.v.) reduced the peak response to LPS to 0.90 and 0.75 degrees C, respectively. The selective endothelin ET(A) receptor antagonist BQ-123 (cyclo[D-Trp-D-Asp-Pro-D-Val-Leu]; 3 pmol, i.c.v.) was ineffective. 3. Increases in temperature caused by IL-1beta (180 fmol, i.c.v.), TNF-alpha (14.4 pmol, i.c.v.) or IL-1beta (150 pmol kg(-1), i.v.) were unaffected by BQ-788 (3 pmol, i.c.v.). 4. Central injection of endothelin-1 (0.1 to 3 fmol, i.c.v.) caused slowly-developing and long-lasting increases in rectal temperature (starting 2 h after administration and peaking at 4-6 h between 0.90 and 1.15 degrees C) which were not clearly dose-dependent. The response to endothelin-1 (1 fmol, i.c.v.) was prevented by BQ-788, but not by BQ-123 (each at 3 pmol, i.c.v.). Intraperitoneal pretreatment with the cyclo-oxygenase inhibitor indomethacin (2 mg kg(-1)), which partially reduced LPS-induced fever, did not modify the hyperthermic response to endothelin-1 (3 fmol, i.c.v.). 5. Therefore, central endothelin(s) participates importantly in the development of LPS-induced fever, via activation of a prostanoid-independent endothelin ET(B) receptor-mediated mechanism possibly not situated downstream from IL-1beta or TNF-alpha in the fever cascade.
Mechanical Strain Induced Tunable Anisotropic Wetting on Buckled PDMS Silver Nanorods Arrays (2015)

We report the fabrication of anisotropic superhydrophobic surface with dual-scale roughness by the deposition of silver nanorods arrays on prestretched poly(dimethylsiloxane) (PDMS) using oblique angle deposition and subsequent release of strain after the deposition, which resulted in the formation of microbuckles/wrinkles. The amplitude and periodicity of the wrinkles were tuned by varying the prestretching mechanical strain (ε) applied to the PDMS film from 0 to 30% prior to Ag nanorods deposition. The peaks and valleys in the surface topography of Ag nanorods arrays covered PDMS films lead to anisotropic wetting by water droplet. The droplet is free to move along the direction parallel to the wrinkles, but the droplet moving perpendicular to the wrinkles confront energy barrier leading to wetting anisotropy. The anisotropic wettability was tuned from 22 to 37° for 10-30% prestretched PDMS film. The dual scale roughness (nanorods on micro wrinkles) was found to be responsible for the superhydrophobicity (contact angle ∼155°) of the sample prepared for 30% prestretched PDMS film in perpendicular direction. The wetting behavior of the Ag nanorods PDMS film surface was reversibly tuned by applying the mechanical strain, which induces the change in the microscale roughness determined by amplitude (A) and periodicity (λ) of the buckles. Most interestingly, the water droplet also displayed the anisotropy in the roll-off angle. The effect of different A and λ on anisotropic wettability of Ag nanorods arrays/PDMS film was also demonstrated by lattice Boltzmann (LB) modeling. These findings may produce a promising way of controlling the direction of liquid flow such as in microfluidic devices and transportation of the microliter water droplets in a preset direction.
CMOS programmable divider for Zigbee frequency synthesizer (2009)

This paper presents 4-bit integer N CMOS programmable frequency divider with high speed and low power consumption. It is based on a 15/16 dual-modulus prescaler, and programmable asynchronous and synchronous dividers. It works up to 3.4 GHz frequency clock and consumes 0.7 mW. It is tested in PLL for 2.4GHz band Zigbee standard. All results are taken from simulating extracted layout. It is implemented using Silterra 0.18-¿m CMOS process, and voltage supply 1.8V.
Ship Air-Wake Identification from Experimental Data for Automatic Deck Landing and Takeoff (2022)

Ship air-wake modeling is a critical task needed to support the design and validation of algorithms that can assist a helicopter’s pilot during shipboard launch and recovery operations. In fact, these operations are often carried out in challenging conditions and impose a significant workload on the pilot. In this framework, the paper presents an air-wake model applicable for flight mechanics analyses and real-time simulations. The definition of the model is based on system identification methodologies applied to wind-tunnel experimental data. The main innovation of the approach consists of the definition of a modular structure of the model that allows setting up a multistep identification strategy and exploiting the most suitable technique for the estimation of each set of the model’s parameters. The validation of the obtained model highlighted a good capability to reproduce the air-wake flowfield in several flow conditions. The model was applied to test trajectory generation and tracking algorithms for helicopter automatic takeoff and landing on a ship deck.