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1

Kram, R., B. Wong, and R. J. Full. "Three-dimensional kinematics and limb kinetic energy of running cockroaches." Journal of Experimental Biology 200, no. 13 (1997): 1919–29. http://dx.doi.org/10.1242/jeb.200.13.1919.

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We tested the hypothesis that fast-running hexapeds must generate high levels of kinetic energy to cycle their limbs rapidly compared with bipeds and quadrupeds. We used high-speed video analysis to determine the three-dimensional movements of the limbs and bodies of cockroaches (Blaberus discoidalis) running on a motorized treadmill at 21 cm s-1 using an alternating tripod gait. We combined these kinematic data with morphological data to calculate the mechanical energy produced to move the limbs relative to the overall center of mass and the mechanical energy generated to rotate the body (hea
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Limont, Anatoliy, and Zlata Limont. "The Load-carrying Capacity and Mass and Mass and Dimensional Parameters of Body Machines for Applying Solid Organic Fertilizers." Central Ukrainian Scientific Bulletin. Technical Sciences 2, no. 5(36) (2022): 162–69. http://dx.doi.org/10.32515/2664-262x.2022.5(36).2.162-169.

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The aim of the study was to know the load capacity and weight of body machines for solid organic fertilizers, their overall length, width and height. Based on this knowledge, it is planned to determine the quantitative relationship between the load capacity of machines as a resultant feature and their weight and overall length, width and height, which in the study were considered as factorial features. The initial data on the load capacity and weight of machines and their overall dimensions were selected from the Catalogs of agricultural machinery produced by enterprises in the former Soviet U
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3

Sulia, Kara J., Jerry Y. Harrington, and Hugh Morrison. "A Method for Adaptive Habit Prediction in Bulk Microphysical Models. Part III: Applications and Studies within a Two-Dimensional Kinematic Model." Journal of the Atmospheric Sciences 70, no. 10 (2013): 3302–20. http://dx.doi.org/10.1175/jas-d-12-0316.1.

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Abstract Arctic mixed-phase clouds are ubiquitous, and the persistence of supercooled liquid is not well understood. Prior studies of mixed-phase clouds predict a single axis length assuming spherical particles or mass–dimensional relationships derived from in situ data. These methods cannot mechanistically evolve particle shape, leading to inaccuracies in estimates of mixed-phase lifetime. Parts I and II of this study report on the development and parcel model testing of an adaptive habit parameterization that predicts two bulk crystal lengths. The method is implemented into a two-dimensional
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Chyu, M. K., and V. Natarajan. "Local Heat/Mass Transfer Distributions on the Surface of a Wall-Mounted Cube." Journal of Heat Transfer 113, no. 4 (1991): 851–57. http://dx.doi.org/10.1115/1.2911213.

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Local mass transfer from the surface of a wall-mounted cube is studied using the naphthalene sublimation technique. The streakline pattern on each face of the cube is visualized using the oil-graphite method. A horseshoe vortex system near the endwall, in conjunction with the separated shear layers initiated at sharp edges, determines the transport characteristics around the cube. As a direct influence of the flow field, the local mass transfer distributions reflect features of three-dimensional flow separation that are significantly different from their two-dimensional counterparts existing i
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Wang, Gang, Yang Zhao, Zeheng Ding, and Xiaohu Zhao. "An Online Calibration Method Based on n-Tuple and Opportunistic Communication for Mine Mass Portable Gas Sensors." Sensors 21, no. 7 (2021): 2451. http://dx.doi.org/10.3390/s21072451.

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Due to the increasing deployment of the Internet of Things (IoT) in the mining industry, portable gas monitoring devices have been widely used. Sensor calibration of large-scale portable gas monitoring devices is becoming an urgent problem to be solved. An online sensor calibration algorithm based on n-tuple and opportunistic communication is proposed based on the specific characteristics (i.e., ‘single-sensor, multi-position’ and ‘multi-sensor, single-position’) of each portable gas monitoring device employed. In this paper, data collected from portable and fixed sensors were defined as multi
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6

Feng, W., M. P. Chipperfield, S. Dhomse, et al. "Evaluation of cloud convection and tracer transport in a three-dimensional chemical transport model." Atmospheric Chemistry and Physics 11, no. 12 (2011): 5783–803. http://dx.doi.org/10.5194/acp-11-5783-2011.

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Abstract. We investigate the performance of cloud convection and tracer transport in a global off-line 3-D chemical transport model. Various model simulations are performed using different meteorological (re)analyses (ERA-40, ECMWF operational and ECMWF Interim) to diagnose the updraft mass flux, convective precipitation and cloud top height. The diagnosed upward mass flux distribution from TOMCAT agrees quite well with the ECMWF reanalysis data (ERA-40 and ERA-Interim) below 200 hPa. Inclusion of midlevel convection improves the agreement at mid-high latitudes. However, the reanalyses show st
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7

Zhang, Yingying, and Shijie Zhang. "Performance prediction of transonic axial multistage compressor based on one-dimensional meanline method." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 235, no. 6 (2021): 1355–69. http://dx.doi.org/10.1177/0957650921998819.

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This study proposes a 1D meanline program for the modeling of modern transonic axial multistage compressors. In this method, an improved blockage factor model is proposed. Work-done factor that varies with the compressor performance conditions is added in this program, and at the same time a notional blockage factor is kept. The coefficient of deviation angle model is tuned according to experimental data. In addition, two surge methods that originated from different sources are chosen to add in and compare with the new method called mass flow separation method. The salient issues presented her
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Feng, W., M. P. Chipperfield, S. Dhomse, et al. "Evaluation of cloud convection and tracer transport in a three-dimensional chemical transport model." Atmospheric Chemistry and Physics Discussions 10, no. 10 (2010): 22953–91. http://dx.doi.org/10.5194/acpd-10-22953-2010.

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Abstract. We investigate the performance of cloud convection and tracer transport in a global off-line 3-D chemical transport model. Various model simulations are performed using different meteorological (re)analyses (ERA-40, ECMWF operational and ECMWF Interim) to diagnose the updraft mass flux, convective precipitation and cloud top height. The diagnosed upward mass flux distribution from TOMCAT agrees quite well with the ECMWF reanalysis data (ERA-40 and ERA-Interim) below 200 hPa. Inclusion of midlevel convection improves the agreement at mid-high latitudes. However, the reanalyses show st
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9

Klimm, Florian. "Topological data analysis of truncated contagion maps." Chaos: An Interdisciplinary Journal of Nonlinear Science 32, no. 7 (2022): 073108. http://dx.doi.org/10.1063/5.0090114.

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The investigation of dynamical processes on networks has been one focus for the study of contagion processes. It has been demonstrated that contagions can be used to obtain information about the embedding of nodes in a Euclidean space. Specifically, one can use the activation times of threshold contagions to construct contagion maps as a manifold-learning approach. One drawback of contagion maps is their high computational cost. Here, we demonstrate that a truncation of the threshold contagions may considerably speed up the construction of contagion maps. Finally, we show that contagion maps m
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10

Sellers, Kimberly F., and Jeffrey C. Miecznikowski. "Feature Detection Techniques for Preprocessing Proteomic Data." International Journal of Biomedical Imaging 2010 (2010): 1–9. http://dx.doi.org/10.1155/2010/896718.

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Numerous gel-based and nongel-based technologies are used to detect protein changes potentially associated with disease. The raw data, however, are abundant with technical and structural complexities, making statistical analysis a difficult task. Low-level analysis issues (including normalization, background correction, gel and/or spectral alignment, feature detection, and image registration) are substantial problems that need to be addressed, because any large-level data analyses are contingent on appropriate and statistically sound low-level procedures. Feature detection approaches are parti
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11

Dowsett, H. J., M. M. Robinson, and K. M. Foley. "Pliocene three-dimensional global ocean temperature reconstruction." Climate of the Past Discussions 5, no. 4 (2009): 1901–28. http://dx.doi.org/10.5194/cpd-5-1901-2009.

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Abstract. A snapshot of the thermal structure of the mid-Piacenzian ocean is obtained by combining the Pliocene Research, Interpretation and Synoptic Mapping Project (PRISM3) multiproxy sea-surface temperature (SST) reconstruction with bottom water temperature estimates produced using Mg/Ca paleothermometry. This reconstruction assumes a Pliocene water mass framework similar to that which exists today, with several important modifications. The area of formation of present day North Atlantic Deep Water (NADW) was expanded and extended further north toward the Arctic Ocean during the mid-Piacenz
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12

Fazio, G. G., T. M. Dame, and S. Kent. "Infrared Background Starlight: Observations and Galaxy Models." Symposium - International Astronomical Union 139 (1990): 35–47. http://dx.doi.org/10.1017/s0074180900240382.

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The near-infrared region of the spectrum is a particularly advantageous window for observing the distribution of old, evolved stars in the galactic disk and bulge. These stars are important because they provide an excellent tracer of the overall stellar mass distribution. At shorter wavelengths extinction is a serious problem, and at longer wavelengths the flux is dominated by dust emission. A summary of the large-scale diffuse near-infrared observations of the Galaxy is presented, as is a summary of the results obtained from these data on the structure of the galactic disk and bulge. The impo
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13

Xu, Anying, Tianshu Wang, Tao Yang, and Kongfa Hu. "Extracting Multi-Dimensional Features for BMI Estimation Using a Multiplex Network." Symmetry 17, no. 6 (2025): 877. https://doi.org/10.3390/sym17060877.

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Body Mass Index (BMI) is a crucial indicator for assessing human obesity and overall health, providing valuable insights for applications such as health monitoring, patient re-identification, and personalized healthcare. Recently, several data-driven methods have been developed to estimate BMI using 2D and 3D features extracted from facial and body images or RGB-D data. However, current research faces challenges such as the incomplete consideration of anthropometric features, the neglect of multiplex networks, and low-BMI-estimation performance. To address these issues, this paper proposes thr
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14

Dowsett, H. J., M. M. Robinson, and K. M. Foley. "Pliocene three-dimensional global ocean temperature reconstruction." Climate of the Past 5, no. 4 (2009): 769–83. http://dx.doi.org/10.5194/cp-5-769-2009.

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Abstract. The thermal structure of the mid-Piacenzian ocean is obtained by combining the Pliocene Research, Interpretation and Synoptic Mapping Project (PRISM3) multiproxy sea-surface temperature (SST) reconstruction with bottom water temperature estimates from 27 locations produced using Mg/Ca paleothermometry based upon the ostracod genus Krithe. Deep water temperature estimates are skewed toward the Atlantic Basin (63% of the locations) and represent depths from 1000 m to 4500 m. This reconstruction, meant to serve as a validation data set as well as an initialization for coupled numerical
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15

Amani, Meisam, Fatemeh Foroughnia, Armin Moghimi, Sahel Mahdavi, and Shuanggen Jin. "Three-Dimensional Mapping of Habitats Using Remote-Sensing Data and Machine-Learning Algorithms." Remote Sensing 15, no. 17 (2023): 4135. http://dx.doi.org/10.3390/rs15174135.

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Progress toward habitat protection goals can effectively be performed using satellite imagery and machine-learning (ML) models at various spatial and temporal scales. In this regard, habitat types and landscape structures can be discriminated against using remote-sensing (RS) datasets. However, most existing research in three-dimensional (3D) habitat mapping primarily relies on same/cross-sensor features like features derived from multibeam Light Detection And Ranging (LiDAR), hydrographic LiDAR, and aerial images, often overlooking the potential benefits of considering multi-sensor data integ
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16

Hodge, Steven M. "Two-Dimensional, Time-dependent Modelling of an Arbitrarily Shaped Ice Mass with the Finite-Element Technique." Journal of Glaciology 31, no. 109 (1985): 350–59. http://dx.doi.org/10.1017/s0022143000006699.

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AbstractThe two-dimensional, time-dependent flow of an arbitrarily shaped ice mass can be successfully modeled with the finite-element technique on a small computer. Methods developed for automatically generating the mesh data greatly simplify the data preparation and optimize the numerical simulations. Using quadratic basis functions permits the flow to be approximated quite adequately by only two element rows (five nodes vertically). Mixed-order basis functions, however, must be used so that numerical oscillations do not set in, and the ends of the ice mass, where the thickness tends to zero
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17

Hodge, Steven M. "Two-Dimensional, Time-dependent Modelling of an Arbitrarily Shaped Ice Mass with the Finite-Element Technique." Journal of Glaciology 31, no. 109 (1985): 350–59. http://dx.doi.org/10.3189/s0022143000006699.

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AbstractThe two-dimensional, time-dependent flow of an arbitrarily shaped ice mass can be successfully modeled with the finite-element technique on a small computer. Methods developed for automatically generating the mesh data greatly simplify the data preparation and optimize the numerical simulations. Using quadratic basis functions permits the flow to be approximated quite adequately by only two element rows (five nodes vertically). Mixed-order basis functions, however, must be used so that numerical oscillations do not set in, and the ends of the ice mass, where the thickness tends to zero
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18

Chretien, Anne-Sophie, Raynier Devillier, Samuel Granjeaud, et al. "High-dimensional mass cytometry analysis of NK cell alterations in AML identifies a subgroup with adverse clinical outcome." Proceedings of the National Academy of Sciences 118, no. 22 (2021): e2020459118. http://dx.doi.org/10.1073/pnas.2020459118.

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Natural killer (NK) cells are major antileukemic immune effectors. Leukemic blasts have a negative impact on NK cell function and promote the emergence of phenotypically and functionally impaired NK cells. In the current work, we highlight an accumulation of CD56−CD16+ unconventional NK cells in acute myeloid leukemia (AML), an aberrant subset initially described as being elevated in patients chronically infected with HIV-1. Deep phenotyping of NK cells was performed using peripheral blood from patients with newly diagnosed AML (n = 48, HEMATOBIO cohort, NCT02320656) and healthy subjects (n =
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19

Liao, G., S. Liu, T. Shi, and G. Zhang. "Gearbox condition monitoring using self-organizing feature maps." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 218, no. 1 (2004): 119–29. http://dx.doi.org/10.1243/095440604322786992.

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This paper proposes a novel technique for the condition monitoring of gearboxes based on a self-organizing feature maps (SOFM) network. In order to visualize the learned SOFM results more clearly, an improved method based on the unified distance matrix (U-matrix) method is presented, in which the overall topological information condensed into the map units is considered so as to project the high-dimensional input vectors into a two-dimensional space and give a better picture of their intrinsic structure than the original U-matrix method. The feature data extracted from industrial gearbox vibra
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20

Ließ, Mareike, and Ali Sakhaee. "Deep Learning with a Multi-Task Convolutional Neural Network to Generate a National-Scale 3D Soil Data Product: The Particle Size Distribution of the German Agricultural Soil Landscape." Agriculture 14, no. 8 (2024): 1230. http://dx.doi.org/10.3390/agriculture14081230.

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Many soil functions and processes are controlled by the soil particle size distribution. Accordingly, nationwide geoinformation on this soil property is required to enable climate-smart and resilient land management. This study presents a new deep learning approach to simultaneously model the contents of the three particle sizes of sand, silt, and clay and their variations with depth throughout the landscape. The approach allows for the consideration of the natural soil horizon boundaries and the inclusion of the surrounding landscape context of each soil profile to investigate the soil–landsc
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21

Mohraz, M., M. V. Simpson, and P. R. Smith. "The three-dimensional structure of the Na,K-ATPase from electron microscopy." Journal of Cell Biology 105, no. 1 (1987): 1–8. http://dx.doi.org/10.1083/jcb.105.1.1.

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The structure of Na,K-ATPase has been studied by electron microscopy and image reconstruction. A three-dimensional structure of this enzyme has been obtained to an overall resolution of 2.5 nm using data from specimens of negatively stained dimer sheets tilted through a range of angles +/- 60 degrees. The reconstruction shows a complex mass distribution consisting of ribbons of paired molecules extending approximately 6.0 nm from the cytoplasmic side of the membrane. The molecular envelope consists of a massive "body" with "lobe" and "arm" structures projecting from it. The body has a columnar
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22

Konovalov, Yuri V., and Oleg V. Nagornov. "Two-dimensional prognostic experiments for fast-flowing ice streams from the Academy of Sciences Ice Cap." Earth System Dynamics 8, no. 2 (2017): 283–94. http://dx.doi.org/10.5194/esd-8-283-2017.

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Abstract. Prognostic experiments for fast-flowing ice streams on the southern side of the Academy of Sciences Ice Cap on Komsomolets Island, Severnaya Zemlya archipelago, were undertaken in this study. The experiments were based on inversions of basal friction coefficients using a two-dimensional flow-line thermocoupled model and Tikhonov's regularization method. The modeled ice temperature distributions in the cross sections were obtained using ice surface temperature histories that were inverted previously from borehole temperature profiles derived at the summit of the Academy of Sciences Ic
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Qiu, Fan, Quan Liu, Jing Song Li, and Fan Zhang. "The Design of Shafting Condition Monitoring System for Rotating Machinery Based on Fiber Bragg Grating Sensor." Advanced Materials Research 898 (February 2014): 738–42. http://dx.doi.org/10.4028/www.scientific.net/amr.898.738.

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FBG (Fiber Bragg Grating) is especially suitable for the shafting operation condition monitoring of rotating machinery under the harsh working environment for a long time with its advantages of anti-electromagnetic interference, easy reuse, good stability, environmental adaptability and so on. The overall architecture of the shafting operation condition monitoring system based on FBG sensing network is proposed. In the system, FBG multi-channel distributed sensing network is used to fully apperceive the real-time operation condition information of the equipment. While the Windows Presentation
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Angerer, Philipp, David S. Fischer, Fabian J. Theis, Antonio Scialdone, and Carsten Marr. "Automatic identification of relevant genes from low-dimensional embeddings of single-cell RNA-seq data." Bioinformatics 36, no. 15 (2020): 4291–95. http://dx.doi.org/10.1093/bioinformatics/btaa198.

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Abstract Motivation Dimensionality reduction is a key step in the analysis of single-cell RNA-sequencing data. It produces a low-dimensional embedding for visualization and as a calculation base for downstream analysis. Nonlinear techniques are most suitable to handle the intrinsic complexity of large, heterogeneous single-cell data. However, with no linear relation between gene and embedding coordinate, there is no way to extract the identity of genes driving any cell’s position in the low-dimensional embedding, making it difficult to characterize the underlying biological processes. Results
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Varentsov, Valery, Valentina Kuzina, and Alexander Koshev. "Mathematical Modelling of Processes in Apparatus with Flowing Three-Dimensional Electrodes for Calculation of Galvanic Waste Water Purification Modes." IOP Conference Series: Materials Science and Engineering 1203, no. 2 (2021): 022092. http://dx.doi.org/10.1088/1757-899x/1203/2/022092.

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Abstract The ecology of the urban environment significantly depends on the intensity and toxicity of industrial and other wastewater discharges, both within the city limits and in the areas adjacent to the city. This paper discusses advanced technologies for wastewater treatment from heavy and non-ferrous metal ions in industrial and small enterprises of urban agglomerations. An analysis of the efficiency of using flow-through three-dimensional electrodes for wastewater treatment from harmful reagents is presented. The use of mathematical modeling allows calculating and predicting the results
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Bennett, Morgan, Jo Bovy, and Jason A. S. Hunt. "Exploring the Sgr–Milky Way–disk Interaction Using High-resolution N-body Simulations." Astrophysical Journal 927, no. 1 (2022): 131. http://dx.doi.org/10.3847/1538-4357/ac5021.

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Abstract The ongoing merger of the Sagittarius (Sgr) dwarf galaxy with the Milky Way is believed to strongly affect the dynamics of the Milky Way’s disk. We present a suite of 13 N-body simulations, with 500 million–1 billion particles, modeling the interaction between the Sgr dwarf galaxy and the Galactic disk. To quantify the perturbation to the disk’s structure and dynamics in the simulation, we compute the number count asymmetry and the mean vertical velocity in a solar-neighborhood-like volume. We find that, overall, the trends in the simulations match those seen in a simple one-dimension
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Zarghami, A., G. Falcucci, E. Jannelli, S. Succi, M. Porfiri, and S. Ubertini. "Lattice Boltzmann modeling of water entry problems." International Journal of Modern Physics C 25, no. 12 (2014): 1441012. http://dx.doi.org/10.1142/s0129183114410125.

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This paper deals with the simulation of water entry problems using the lattice Boltzmann method (LBM). The dynamics of the free surface is treated through the mass and momentum fluxes across the interface cells. A bounce-back boundary condition is utilized to model the contact between the fluid and the moving object. The method is implemented for the analysis of a two-dimensional flow physics produced by a symmetric wedge entering vertically a weakly-compressible fluid at a constant velocity. The method is used to predict the wetted length, the height of water pile-up, the pressure distributio
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Han, Ming-Zhe, Shao-Peng Tang, and Yi-Zhong Fan. "Nonparametric Representation of Neutron Star Equation of State Using Variational Autoencoder." Astrophysical Journal 950, no. 2 (2023): 77. http://dx.doi.org/10.3847/1538-4357/acd050.

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Abstract We introduce a new nonparametric representation of the neutron star (NS) equation of state (EOS) by using the variational autoencoder (VAE). As a deep neural network, the VAE is frequently used for dimensionality reduction since it can compress input data to a low-dimensional latent space using the encoder component and then reconstruct the data using the decoder component. Once a VAE is trained, one can take the decoder of the VAE as a generator. We employ 100,000 EOSs that are generated using the nonparametric representation method based on Han et al. as the training set and try dif
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Kim, Taehyung, Dong-Hyun Kang, Shinyong Shim, et al. "Versatile Low-Cost Volumetric 3D Ultrasound Imaging Using Gimbal-Assisted Distance Sensors and an Inertial Measurement Unit." Sensors 20, no. 22 (2020): 6613. http://dx.doi.org/10.3390/s20226613.

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This study aims at creating low-cost, three-dimensional (3D), freehand ultrasound image reconstructions from commercial two-dimensional (2D) probes. The low-cost system that can be attached to a commercial 2D ultrasound probe consists of commercial ultrasonic distance sensors, a gimbal, and an inertial measurement unit (IMU). To calibrate irregular movements of the probe during scanning, relative position data were collected from the ultrasonic sensors that were attached to a gimbal. The directional information was provided from the IMU. All the data and 2D ultrasound images were combined usin
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Patterson, Sharla Gayle, Charlene W. Bayer, Robert J. Hendry, et al. "Breath Analysis by Mass Spectrometry: A New Tool for Breast Cancer Detection?" American Surgeon 77, no. 6 (2011): 747–51. http://dx.doi.org/10.1177/000313481107700632.

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Breath analysis has received attention as a noninvasive diagnostic tool with increasing research into its potential usefulness. We are investigating the utility of the analysis of breath volatile organic compounds (VOCs) as an effective modality for breast cancer (BC) detection and monitoring by collecting breath samples with a simple portable device to determine whether BC patients have breath VOCs distinct from those in healthy volunteers. We prospectively enrolled 20 healthy volunteers and 20 newly diagnosed stage II-IV BC patients. The study subjects deeply exhaled into a commercially avai
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Hambright, Heather G., Anand V. R. Kornepati, Dai Ogata, et al. "Abstract B10: High-dimensional (30-plex) imaging mass cytometry on tissue microarray identifies novel PD-L1-inclusive immunophenotypes associated with overall survival in stage III melanoma." Cancer Research 80, no. 19_Supplement (2020): B10. http://dx.doi.org/10.1158/1538-7445.mel2019-b10.

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Abstract We sought to determine the subcellular distribution of 30+ immune-related markers including PD-L1 in stage III melanoma tumor tissues (nuclear, cytoplasmic, surface) using novel imaging mass cytometry technology that enables simultaneous detection of over 30 immune and tumor markers. Metal-tagged antibodies were used to stain stage III melanoma tissues similarly to an IHC-based protocol, followed by laser ablation and mass cytometry using the Helios® and Hyperion® technology (Fluidigm). Markers for immune subsets included CD45, CD3, CD4, CD8, PD-1, Granzyme B, FoxP3, CD11b, CD11c, CD1
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32

Warnecke, J., and H. Peter. "Data-driven model of the solar corona above an active region." Astronomy & Astrophysics 624 (April 2019): L12. http://dx.doi.org/10.1051/0004-6361/201935385.

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Aims. We aim to reproduce the structure of the corona above a solar active region as seen in the extreme ultraviolet (EUV) using a three-dimensional magnetohydrodynamic (3D MHD) model. Methods. The 3D MHD data-driven model solves the induction equation and the mass, momentum, and energy balance. To drive the system, we feed the observed evolution of the magnetic field in the photosphere of the active region AR 12139 into the bottom boundary. This creates a hot corona above the cool photosphere in a self-consistent way. We synthesize the coronal EUV emission from the densities and temperatures
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Niu, Jing, Roobaea Alroobaea, Abdullah M. Baqasah, and Lavish Kansal. "Implementation of network information security monitoring system based on adaptive deep detection." Journal of Intelligent Systems 31, no. 1 (2022): 454–65. http://dx.doi.org/10.1515/jisys-2022-0032.

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Abstract For a better detection in Network information security monitoring system, the author proposes a method based on adaptive depth detection. A deep belief network (DBN) was designed and implemented, and the intrusion detection system model was combined with a support vector machine (SVM). The data set adopts the NSL-KDD network communication data set, and this data set is authoritative in the security field. Redundant cleaning, data type conversion, normalization, and other processing operations are performed on the data set. Using the data conversion method based on the probability mass
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Aloisi, Ivan, Mariosimone Zoccali, Peter Q. Tranchida, and Luigi Mondello. "Analysis of Organic Sulphur Compounds in Coal Tar by Using Comprehensive Two-Dimensional Gas Chromatography-High Resolution Time-of-Flight Mass Spectrometry." Separations 7, no. 2 (2020): 26. http://dx.doi.org/10.3390/separations7020026.

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Coal tar is a complex mixture of organic compounds obtained from the thermal treatment of coal; it contains several different chemical classes of compounds, such as polycyclic aromatic hydrocarbons, phenols and different heterocyclic compounds including sulphur derivatives. In the present research, a target analysis was carried out for the characterisation of fourteen different classes of organic sulphur compounds in coal tar by using cryogenically-modulated (CM) comprehensive two-dimensional gas chromatography-high resolution time-of-flight mass spectrometry (GC×GC-HR ToFMS) with the support
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35

Pratt, R. G., W. J. McGaughey, and C. H. Chapman. "Anisotropic velocity tomography: A case study in a near‐surface rock mass." GEOPHYSICS 58, no. 12 (1993): 1748–63. http://dx.doi.org/10.1190/1.1443389.

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Cross‐borehole data were acquired in the surface crown pillar of a massive sulfide ore mine. The data consist of five, two‐dimensional (2-D), cross‐borehole panels, each with approximately 900 source‐receiver pairs. The panels were located within the crown pillar at either side of and within a major subvertical fault zone that intersects the orebody. An initial analysis of the data indicates that the bedrock containing the orebody is seismically anisotropic. A rigorous analysis of the traveltimes using anisotropic velocity tomography confirms the initial assessment that anisotropy exists withi
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Gümüş, M. K., S. Kansız, G. B. Tulemisova, and N. Dege. "SYNTHESIS, CRYSTAL STRUCTURE, AND HIRSHFELD SURFACE ANALYSIS OF 4,4A,5,6,7,8-HEXAHYDRO-4A-METHYL-2,5,7-TRIPHENYL-2H-PYRIDO[4,3-D][1,3]OXAZINE." Журнал структурной химии 66, no. 2 (2025): 139916. http://dx.doi.org/10.26902/jsc_id139916.

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The synthesis of the 2,6-diphenyldpiperidin-4-one derivative of the title compound, 4,4a,5,6,7,8-hexahydro-4a-methyl-2,5,7-triphenyl-2H-pyrido[4,3-d][1,3]oxazine (HMTPO), was developed using the reaction of 4-hydroxy-3-methyl-2-butanone, benzaldehyde, and ammonium acetate in ethanol as a solvent. The molecular structure of HMTPO was determined by single-crystal X-ray diffraction. The chemical structure was confirmed by employing IR, 1H NMR, 13C NMR, and mass spectral data. To gain deeper insight into the bonding interactions within the compound, Hirshfeld surface analysis and two-dimensional f
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Akarsh, A., and Sumer Dirbude. "Effect of HTF flow direction, mass flow rate and fins on melting and solidification in a latent-heat-based thermal energy storage device." Journal of Physics: Conference Series 2054, no. 1 (2021): 012049. http://dx.doi.org/10.1088/1742-6596/2054/1/012049.

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Abstract Latent-heat-based thermal energy systems (LHTES) have commonly been used as a potential energy storage mode over any other mode of thermal energy storage. Many heat transfer enhancement techniques have been proposed over the past years. These techniques reduce the melting and solidification times. Most of these techniques focus on the phase change material (PCM). However, the flow direction of the heat transfer fluid (HTF) can affect the heat transfer performance and pumping power requirement of the system. In this paper, the effect of HTF-flow direction, HTF mass flow rate and additi
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Meza-Joya, Fabio Leonardo, Mary Morgan-Richards, and Steven A. Trewick. "Relationships among body size components of three flightless New Zealand grasshopper species (Orthoptera, Acrididae) and their ecological applications." Journal of Orthoptera Research 31, no. (1) (2022): 91–103. https://doi.org/10.3897/jor.31.79819.

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Body size is perhaps the most fundamental property of an organism and is central to ecology at multiple scales, yet obtaining accurate estimates of ecologically meaningful size metrics, such as body mass, is often impractical. Allometric scaling and mass-to-mass relationships have been used as alternative approaches to model the expected body mass of many species. However, models for predicting body size in key herbivorous insects, such as grasshoppers, exist only at the family level. To address this data gap, we collected empirical body size data (hind femur length and width, pronotum length,
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Nair, R. B., and S. Yavuzkurt. "Modeling Sulfur Dioxide Capture in a Pulverized Coal Combustor." Journal of Engineering for Gas Turbines and Power 119, no. 2 (1997): 291–97. http://dx.doi.org/10.1115/1.2815574.

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The formation and capture of sulfur dioxide in a pulverized coal combustor is investigated. A two-dimensional, steady, axisymmetric code, PCGC-2 (Pulverized Coal Gasification and Combustion—two Dimensional), originally developed at Brigham Young University, has been used to simulate combustion of the pulverized coal. This paper represents part of a project to investigate simultaneously enhancing sulfur capture and particulate agglomeration in combustor effluents. Results from the code have been compared to experimental data obtained from MTCI’s (Manufacturing Technology and Conversion Internat
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Konovalov, Y. V., and O. V. Nagornov. "Two-dimensional prognostic experiments for fast-flowing ice streams from the Academy of Sciences Ice Cap: future modeled histories obtained for the reference surface mass balance." Earth System Dynamics Discussions 6, no. 2 (2015): 2211–42. http://dx.doi.org/10.5194/esdd-6-2211-2015.

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Abstract. The prognostic experiments for fast-flowing ice streams on the southern side of the Academy of Sciences Ice Cap in the Komsomolets Island, Severnaya Zemlya archipelago, are implemented in this study. These experiments are based on inversions of basal friction coefficients using a two-dimensional flow-line thermo-coupled model and the Tikhonov's regularization method. The modeled ice temperature distributions in the cross-sections were obtained using the ice surface temperature histories that were inverted previously from the borehole temperature profiles derived at the Academy of Sci
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Hong, Zehu, Weiheng Xu, Yun Liu, et al. "Retrieval of Three-Dimensional Green Volume in Urban Green Space from Multi-Source Remote Sensing Data." Remote Sensing 15, no. 22 (2023): 5364. http://dx.doi.org/10.3390/rs15225364.

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Quantification of three-dimensional green volume (3DGV) plays a crucial role in assessing environmental benefits to urban green space (UGS) at a regional level. However, precisely estimating regional 3DGV based on satellite images remains challenging. In this study, we developed a parametric estimation model to retrieve 3DGV in UGS through combining Sentinel-1 and Sentinel-2 images. Firstly, UAV images were used to calculate the referenced 3DGV based on mean of neighboring pixels (MNP) algorithm. Secondly, we applied the canopy height model (CHM) and Leaf Area Index (LAI) derived from Sentinel
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Mol, Hans G. J., Henk van der Kamp, Guido van der Weg, Martijn van der Lee, Arjen Punt, and Theo C. de Rijk. "Validation of Automated Library-Based Qualitative Screening of Pesticides by Comprehensive Two-Dimensional Gas Chromatography/Time-of-Flight Mass Spectrometry." Journal of AOAC INTERNATIONAL 94, no. 6 (2011): 1722–40. http://dx.doi.org/10.5740/jaoacint.sgemol.

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Abstract A method for automated detection and reporting of pesticides in plant materials based on comprehensive two-dimensional GC/time-of-flight MS with library-based detection by software has been developed and validated. Optimum settings for detection parameters such as spectral match threshold and first and second dimension retention time tolerances were assessed with respect to occurrence of false detects and false negatives. Next the method was validated following European Union guidelines established for qualitative screening of pesticides. The validation was largely done in retrospect
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Zhang, Hui-Hui, Hua-Lei Wang, Hai-Yan Meng, Min-Liang Liu, and Bing Ding. "Impact of the Coriolis interaction on the potential landscape evolution across the nuclide chart: Systematic total-Routhian-surface calculations." Physica Scripta 97, no. 2 (2022): 025303. http://dx.doi.org/10.1088/1402-4896/ac49ae.

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Abstract Rotational structure properties along the yrast line for 766 observed even–even nuclei with Z ≥ 20 in the nuclide chart have been systematically studied by means of the approach of pairing-deformation self-consistent total Routhian surface calculations in three-dimensional deformation space (β 2, γ, β 4). Typical two-dimensional maps of the total nuclear energy are presented as functions of rotational frequency ℏ ω. Various types of physical quantities (including nuclear shapes, aligned angular momenta, pairing gaps and excitation energies) are presented in the (Z, N) plane, indicatin
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Bates, Karl T., Roger B. J. Benson, and Peter L. Falkingham. "A computational analysis of locomotor anatomy and body mass evolution in Allosauroidea (Dinosauria: Theropoda)." Paleobiology 38, no. 3 (2012): 486–507. http://dx.doi.org/10.1666/10004.1.

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We investigate whether musculoskeletal anatomy and three-dimensional (3-D) body proportions were modified during the evolution of large (>6000 kg) body size in Allosauroidea (Dinosauria: Theropoda). Three adaptations for maintaining locomotor performance at large body size, related to muscle leverage, mass, and body proportions, are tested and all are unsupported in this analysis. Predictions from 3-D musculoskeletal models of medium-sized (Allosaurus) and large-bodied (Acrocanthosaurus) allosauroids suggest that muscle leverage scaled close to isometry, well below the positive allometry re
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Mathew, Sajay Sunny, and Christoph Federrath. "The IMF and multiplicity of stars from gravity, turbulence, magnetic fields, radiation, and outflow feedback." Monthly Notices of the Royal Astronomical Society 507, no. 2 (2021): 2448–67. http://dx.doi.org/10.1093/mnras/stab2338.

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ABSTRACT We perform a series of three-dimensional, magnetohydrodynamical simulations of star cluster formation including gravity, turbulence, magnetic fields, stellar radiative heating, and outflow feedback. We observe that the inclusion of protostellar outflows (1) reduces the star formation rate by a factor of ∼2, (2) increases fragmentation, and (3) shifts the initial mass function (IMF) to lower masses by a factor of 2.0 ± 0.2, without significantly affecting the overall shape of the IMF. The form of the sink particle (protostellar objects) mass distribution obtained from our simulations m
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Botezatu, Andreea, and Gary James Pickering. "Novel Applications for Biomaterials: The Case of Remediation of Wine Taints Using Poly-Lactic Acid Polymer." Applied Mechanics and Materials 749 (April 2015): 70–73. http://dx.doi.org/10.4028/www.scientific.net/amm.749.70.

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Wine is the world’s oldest alcoholic beverage and the most consumed in at least 20 countries. However, taints detract from its quality and acceptance, significantly reducing the value of wine. In this study we investigated the capacity of a poly-lactic acid (PLA) biopolymer to reduce concentrations of four odorants responsible for tainting many red wines: isopropyl-methoxypyrazine (IPMP), isobutyl–methoxypyrazine (IBMP), 4-ethylphenol (4-EP) and 4-ethylguaiacol (4-EG). Red wine was spiked with either IPMP [20 ng/L] and IBMP [20 ng/L] (Study 1) or 4-EP [200 ug/L] and 4-EG [200 ug/L] (Study 2) a
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Fountoukis, C., P. N. Racherla, H. A. C. Denier van der Gon, et al. "Evaluation of a three-dimensional chemical transport model (PMCAMx) in the European domain during the EUCAARI May 2008 campaign." Atmospheric Chemistry and Physics Discussions 11, no. 5 (2011): 14183–220. http://dx.doi.org/10.5194/acpd-11-14183-2011.

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Abstract. PMCAMx-2008, a detailed three dimensional chemical transport model (CTM), was applied to Europe to simulate the mass concentration and chemical composition of particulate matter (PM) during May 2008. The model includes a state-of-the-art organic aerosol module which is based on the volatility basis set framework treating both primary and secondary organic components to be semivolatile and photochemically reactive. The model performance is evaluated against high time resolution aerosol mass spectrometer (AMS) ground and airborne measurements. Overall, organic aerosol is predicted to a
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Fountoukis, C., P. N. Racherla, H. A. C. Denier van der Gon, et al. "Evaluation of a three-dimensional chemical transport model (PMCAMx) in the European domain during the EUCAARI May 2008 campaign." Atmospheric Chemistry and Physics 11, no. 20 (2011): 10331–47. http://dx.doi.org/10.5194/acp-11-10331-2011.

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Abstract. PMCAMx-2008, a detailed three-dimensional chemical transport model (CTM), was applied to Europe to simulate the mass concentration and chemical composition of particulate matter (PM) during May 2008. The model includes a state-of-the-art organic aerosol module which is based on the volatility basis set framework treating both primary and secondary organic components as semivolatile and photochemically reactive. The model performance is evaluated against high time resolution aerosol mass spectrometer (AMS) ground and airborne measurements. Overall, organic aerosol is predicted to acco
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Adamopoulos, Efstathios, Fulvio Rinaudo, Monica Volinia, and Mario Girotto. "Multispectral Sensing and Data Integration for the Study of Heritage Architecture." Engineering Proceedings 2, no. 1 (2020): 64. http://dx.doi.org/10.3390/ecsa-7-08198.

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The recording and processing of terrestrial multispectral information can have significant value for built heritage studies. The efficient adoption of active and passive sensing techniques operating at multiple wavelengths and the integrated analyses of the produced data is essential for enhanced observation of historical architecture, especially for the implementation of rapid non-destructive surveys, which can provide an overall assessment of the state-of-preservation of a historical structure to indicate areas of interest for more detailed diagnostics. Based on this rationale, the presented
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Pankow, J. F., W. Luo, A. N. Melnychenko, et al. "Volatilizable biogenic organic compounds (VBOCs) with two dimensional gas chromatography-time of flight mass spectrometry (GC × GC-TOFMS): sampling methods, VBOC complexity, and chromatographic retention data." Atmospheric Measurement Techniques Discussions 4, no. 3 (2011): 3647–84. http://dx.doi.org/10.5194/amtd-4-3647-2011.

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Abstract. Two dimensional gas chromatography (GC × GC) with detection by time-of-flight mass spectrometry (TOFMS) was applied in the rapid analysis of air samples containing highly complex mixtures of volatilizable biogenic organic compounds (VBOCs). VBOC analytical methodologies are briefly reviewed, and optimal conditions are discussed for sampling with both adsorption/thermal desorption (ATD) cartridges and solid-phase microextraction (SPME) fibers. Air samples containing VBOC emissions from leaves of two tree species (Cedrus atlantica and Calycolpus moritzianus) were obtained by both ATD a
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