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Journal articles on the topic 'Density Deviation'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Jungan, Chen, Chen Jinyin, Yang Dongyong, and Li Jun. "A k-Deviation Density Based Clustering Algorithm." Mathematical Problems in Engineering 2018 (2018): 1–16. http://dx.doi.org/10.1155/2018/3742048.

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Due to the adoption of global parameters, DBSCAN fails to identify clusters with different and varied densities. To solve the problem, this paper extends DBSCAN by exploiting a new density definition and proposes a novel algorithm called k-deviation density based DBSCAN (kDDBSCAN). Various datasets containing clusters with arbitrary shapes and different or varied densities are used to demonstrate the performance and investigate the feasibility and practicality of kDDBSCAN. The results show that kDDBSCAN performs better than DBSCAN.

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2

Uthirapathi, Revathi, Uma Sivakami Krishnamoorthy, and Rose Venis Ambrose. "Thermodynamic Properties of Binary Liquid Mixtures of Furfural with Toluene and Nitro Benzene at Varying Temperatures." Oriental Journal Of Chemistry 38, no. 4 (2022): 1003–10. http://dx.doi.org/10.13005/ojc/380423.

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Binary liquid mixtures of furfural with toluene and nitrobenzene were examined for ultrasonic velocity, viscosity and density at a temperature of 308.15 and 318.15 K in various mole fractions. The calculated thermodynamic properties from density, viscosity, ultrasonic velocity and some excess parameters like Excess Volume(VE), Deviation in Isentropic Compressibility(∆KS), Deviation in Viscosity(∆η), Deviation in Intermolecular Free Length(∆LF), Deviation in Intermolecular Free Volume(∆VF) and Deviation in Acoustic Impedance(∆Z) were determined and found the proper coefficients for a polynomial

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3

Gong, Zhicheng, Yuyin Shen, Shengcai Qi, et al. "Influence of Bone Conditions on the Accuracy of Implant Placement." Bioengineering 11, no. 11 (2024): 1161. http://dx.doi.org/10.3390/bioengineering11111161.

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This study aimed to assess the influence of cortical bone thickness, bone density, and residual ridge morphology in the posterior mandibular area on the accuracy of implant placement using tooth-supported digital guides. The research included 75 implants from 55 patients. Each patient underwent a cone-beam computed tomography (CBCT) scan for image analysis. Simplant® Pro 17 software (SIMPLANT Pro 17.01) was utilized to measure cortical bone thickness, bone density, and residual ridge morphology at the implant sites. Subsequently, 3Shape Trios software (3Shape TRIOS Design Studio 1.7.19.0) was

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4

Joutard, C. "A Large Deviation Approximation for Multivariate Density Functions." Mathematical Methods of Statistics 28, no. 1 (2019): 66–73. http://dx.doi.org/10.3103/s1066530719010058.

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5

Berzin-Joseph, Corinne. "Deviation in kernel density estimation: super-optimal case." Comptes Rendus de l'Académie des Sciences - Series I - Mathematics 330, no. 9 (2000): 825–30. http://dx.doi.org/10.1016/s0764-4442(00)00271-8.

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6

Mombo-Caristan, J. C., L. C. Philippe, M. Y. Perrin, and J. P. Martin. "Laser beam deviation as a local density probe." Experiments in Fluids 7, no. 5 (1989): 303–8. http://dx.doi.org/10.1007/bf00198448.

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7

Leni, Siregar, Tri Tjahjono, and N. Nahry. "Endogenous relationship of accident occurrence with speed, traffic heterogeneity and driving environment on inter-urban roads in Indonesia." Journal of Applied Engineering Science 18, no. 4 (2020): 475–84. http://dx.doi.org/10.5937/jaes0-25837.

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Speed performances and characteristics of traffic have mostly been considered as homogeneous across vehicles. In countries where the roads are dominated by mixed types of vehicles, the heterogeneity needs to be considered. This study is aimed at modeling how traffic heterogeneity as captured in speed, speed deviation, and traffic volume determines the fatality rates and accident rates. Traffic volume, road geometry (bendiness, hilliness, bend density and hill density) and road surface condition (represented by IRI) become the independent variables in a simultaneous regression using structural

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8

KUSKE, R., and J. B. KELLER. "Large deviation theory for stochastic difference equations." European Journal of Applied Mathematics 8, no. 6 (1997): 567–80. http://dx.doi.org/10.1017/s095679259700332x.

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The probability density for the solution yn of a stochastic difference equation is considered. Following Knessl et al. [1], it is shown to satisfy a master equation, which is solved asymptotically for large values of the index n. The method is illustrated by deriving the large deviation results for a sum of independent identically distributed random variables and for the joint density of two dependent sums. Then it is applied to a difference approximation to the Helmholtz equation in a random medium. A large deviation result is obtained for the probability density of the decay rate of a soluti

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9

Yang, Hua-Yu, Ping He, Weishan Zhu, and Long-Long Feng. "Turbulence-induced deviation between baryonic field and dark matter field in the spatial distribution of the Universe." Monthly Notices of the Royal Astronomical Society 498, no. 3 (2020): 4411–23. http://dx.doi.org/10.1093/mnras/staa2666.

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ABSTRACT The cosmic baryonic fluid at low redshifts is similar to a fully developed turbulence. In this work, we use simulation samples produced by the hybrid cosmological hydrodynamical/N-body code, to investigate on what scale the deviation of spatial distributions between baryons and dark matter is caused by turbulence. For this purpose, we do not include the physical processes such as star formation, supernovae (SNe), and active galactic nucleus (AGN) feedback into our code, so that the effect of turbulence heating for IGM can be exhibited to the most extent. By computing cross-correlation

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10

Zamikula, Konstantin, Olena Tertyshna, Oleg Tertyshny, and Petro Topilnytskyy. "Simulation of Change in Density and Viscosity of Crude Oil When Mixing." Chemistry & Chemical Technology 16, no. 3 (2022): 469–74. http://dx.doi.org/10.23939/chcht16.03.469.

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The deviation of density and viscosity values of oil mixtures from those calculated according to the additivity rule has been examined. Mathematical models have been developed for determining the properties of mixtures with different compositions taking into account the group composition of the source components. Mixtures containing components with a high content of alkanes and a low content of arenes have been found to be characterized by extreme deviations of density towards the maximum and kinematic viscosity towards the minimum. The created models were validated and compared with existing

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11

Ndukwu, M. C. "Determination of selected physical properties of Brachystegia eurycoma seeds." Research in Agricultural Engineering 55, No. 4 (2009): 165–69. http://dx.doi.org/10.17221/14/2009-rae.

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The research looked at some selected physical properties of <I>Brachystegia eurycoma</I>, such as axial dimension, roundness, sphericity, surface area, bulk density, solid density, porosity, and volume which are essential in the design and construction of the processing and handling equipments of <I>Brachystegia eurycoma</I>. All the above physical properties measured showed some deviations from the average values which is typical of agricultural biomaterials. Solid density showed the highest deviation of 4.04 g/mm<sup>3</sup> while the volume showed the lea

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12

Nuryoto, Nuryoto, Rahmayetty Rahmayetty, Yusuf Rumbino, Astrilia Damayanti, and Doni Rahmat Wicakso. "OBSERVASI PENURUNAN TEKANAN (PRESSURE DROP) PADA SISTEM PERPIPAAN: PENGARUH PANJANG DAN DIAMETER PIPA, ELBOW, DAN TEE." Jurnal Rekayasa Mesin 15, no. 2 (2024): 1023–39. http://dx.doi.org/10.21776/jrm.v15i2.1666.

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The piping system is a fundamental process equipment in the industry. The phenomena that occur in piping systems vary depending on the conditions of the pipes and the fluids flowing through them. Therefore, research related to piping systems requires attention to minimize and understand the occurring phenomena. There have been many studies related to piping analysis, but what sets this research apart from previous studies is that it focuses on examining the contribution of each component of the piping system to friction loss-pressure drop. Furthermore, the data obtained is used to determine th

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13

Lau, William G., Mark L. Teply, and Ann K. Boyle. "The deviation, density, and depth of partially ordered sets." Journal of Pure and Applied Algebra 60, no. 3 (1989): 253–68. http://dx.doi.org/10.1016/0022-4049(89)90086-8.

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14

Li, Dong, and Baoshi Jiang. "The Effect of Nodal Deviation on the Reliability Performance of the Optimized Free-Form Single-Layer Reticulated Shell." Applied Sciences 15, no. 10 (2025): 5379. https://doi.org/10.3390/app15105379.

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The free-form single-layer reticulated shell structure has the characteristics of complex shape, a high degree of static indeterminacy, and difficult node positioning in the construction process, and the nodal deviations that may occur in the construction stage have a significant impact on the reliability performance of the structure. In order to evaluate the influence of the nodal deviation on the reliability performance of the structure in the process of shape optimization, this paper takes the free-form surface of the rectangular plane as the initial structure. Shape optimization is carried

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15

Rushton, Michael J. D., Iuliia Ipatova, Lee J. Evitts, William E. Lee, and Simon C. Middleburgh. "Stoichiometry deviation in amorphous zirconium dioxide." RSC Advances 9, no. 29 (2019): 16320–27. http://dx.doi.org/10.1039/c9ra01865d.

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The accommodation mechanism for excess oxygen in amorphous ZrO<sub>2</sub> is identified using state-of-the-art methods: employing reverse Monte-Carlo, molecular dynamics and density functional theory together. Excess oxygen is predicted to enter amorphous ZrO<sub>2</sub> exothermically from O<sub>2</sub>.

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16

Brunner, Daniel, Joe Goodbread, Klaus Häusler, Sunil Kumar, Gernot Boiger, and Hassan A. Khawaja. "Analysis of a Tubular Torsionally Resonating Viscosity–Density Sensor." Sensors 20, no. 11 (2020): 3036. http://dx.doi.org/10.3390/s20113036.

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This paper discusses a state-of-the-art inline tubular sensor that can measure the viscosity–density ( ρ η ) of a passing fluid. In this study, experiments and numerical modelling were performed to develop a deeper understanding of the tubular sensor. Experimental results were compared with an analytical model of the torsional resonator. Good agreement was found at low viscosities, although the numerical model deviated slightly at higher viscosities. The sensor was used to measure viscosities in the range of 0.3–1000 mPa·s at a density of 1000 kg/m3. Above 50 mPa·s, numerical models predicted

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17

Ferreira, Ana Raquel, Catarina Mendes Fonseca, André Correia, and Patrícia Fonseca. "Influence of the Milling Cutter Drill on Implant Placement Accuracy in Partially Guided Surgery: An In Vitro Experimental Study." Applied Sciences 15, no. 14 (2025): 7826. https://doi.org/10.3390/app15147826.

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Partially guided implant surgery has emerged as a technique that enhances the precision of implant placement while maintaining surgical flexibility. This in vitro experimental study evaluated the influence of the milling cutter drill on the angular and linear deviations of implant placement in synthetic polyurethane bone models using a partially guided surgical protocol. Additionally, the effects of bone density and implant macrogeometry were assessed. A total of 120 Straumann® implants (BL, BLT, and BLX) were placed in polyurethane blocks simulating four bone densities (D1–D4). Implant positi

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18

Yang, Xin Guo. "Deviation of Mass-Density Allometry in Ramet Populations of Switchgrass." Advanced Materials Research 518-523 (May 2012): 5316–19. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.5316.

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We studied a ramet population of switchgrass, caespitose in appearance, and proved the absence of density-dependent mortality. We present a deviation of mass-density allometry based on spatially explicit densities along the vertical space of the population. The number of ramets in the mean-ramet-height space explains the variation in the average weight of whole ramets (M) more accurately, with an asymptote towards critical self-thinning trajectory for such a mass-density relationship. With the development of size heterogeneity, a ‘vertical packing’ process appears in the population. We define

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19

Alyass, Kussiy K. "Global Measure of the Deviation of a Wavelet Density Estimator." Journal of Modern Applied Statistical Methods 6, no. 2 (2007): 544–50. http://dx.doi.org/10.22237/jmasm/1193890680.

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20

Cheng, Fuxia. "Maximum deviation of error density estimators in censored linear regression." Statistics & Probability Letters 82, no. 9 (2012): 1657–64. http://dx.doi.org/10.1016/j.spl.2012.05.001.

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21

BEN-DOV, GUY, and JACOB COHEN. "Instability of optimal non-axisymmetric base-flow deviations in pipe Poiseuille flow." Journal of Fluid Mechanics 588 (September 24, 2007): 189–215. http://dx.doi.org/10.1017/s0022112007007446.

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The stability of pipe flow when mildly deviating from the developed Poiseuille profile by a non-axisymmetric azimuthally periodic distortion is examined. The motivation for this is to consider deviations, the origin of which may be attributed to small-amplitude disturbances having sinusoidal periodicity along the azimuthal coordinate, which are known to be the ones most amplified by the transient growth linear mechanism. A mathematical technique for finding the minimum energy density of azimuthally periodic deviations triggering exponential instability is presented. The results show that owing

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22

Shi, Wei, Pingting Chen, Xueying Li, Jing Ren, and Hongde Jiang. "Uncertainty Quantification of the Effects of Small Manufacturing Deviations on Film Cooling: A Fan-Shaped Hole." Aerospace 6, no. 4 (2019): 46. http://dx.doi.org/10.3390/aerospace6040046.

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The film cooling holes in the blade of modern gas turbines have commonly been manufactured by laser drilling, Electric Discharge Machining (EDM), and Additive Manufacturing (AM) in recent years. These manufacturing processes often result in small geometric deviations, such as conical angles, filleted edges, and diameter deviations of the hole, which can lead to deviations on the distribution of adiabatic cooling effectiveness (η) values, the value of the discharge coefficient (Cd), and the characteristic of the in-hole flow field. The current study employed flat plate fan-shaped film cooling h

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23

Sun, Shi, Cheng Sun, Dorine C. Duives, and Serge P. Hoogendoorn. "Deviation of Pedestrian Path due to the Presence of Building Entrances." Journal of Advanced Transportation 2021 (June 29, 2021): 1–12. http://dx.doi.org/10.1155/2021/5594738.

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Commercial areas, especially urban ones with numerous buildings, are becoming increasingly prone to congestion because of their popularity. Visual inspections show that interactions between pedestrians and building entrances affect the distribution of pedestrian trajectories, which influences the utility of pedestrian spaces and the design of urban shopping areas. Herein, we analyse the dynamics of pedestrian deviations around building entrances. We used a video recorded using an unmanned aerial vehicle to determine pedestrian trajectories in a Chinese commercial walking space. First, the cand

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24

Hsu, Wei-Hao, Chia-Wei Lai, Szu-Chia Chen, et al. "GREATER LOW-DENSITY LIPOPROTEIN CHOLESTEROL VARIABILITY INCREASES THE RISK OF CARDIOVASCULAR EVENTS IN PATIENTS WITH TYPE 2 DIABETES MELLITUS." Endocrine Practice 25, no. 9 (2019): 918–25. http://dx.doi.org/10.4158/ep-2019-0002.

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Objective: Variability in lipid levels has been associated with poor cardiovascular outcomes in patients with coronary artery disease. The aim of this study was to investigate whether low-density lipoprotein cholesterol (LDLC) variability can be used to predict cardiovascular events in patients with type 2 diabetes mellitus (DM). Methods: A total of 5,354 patients with type 2 DM were enrolled in this study. Cardiovascular events including peripheral arterial disease, coronary artery disease, stroke, and cardiovascular death were defined as the study endpoints, and standard deviations of lipid

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25

Berger, Quentin, Matthias Birkner, and Linglong Yuan. "Collective vs. individual behaviour for sums of i.i.d. random variables: appearance of the one-big-jump phenomenon." Annales de la Faculté des sciences de Toulouse : Mathématiques 33, no. 5 (2025): 1413–85. https://doi.org/10.5802/afst.1802.

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This article studies large and local large deviations for sums of i.i.d. real-valued random variables in the domain of attraction of an α-stable law, α∈(0,2], with emphasis on the case α=2. There are two different scenarios: either the deviation is realised via a collective behaviour with all summands contributing to the deviation (a Gaussian scenario), or a single summand is atypically large and contributes to the deviation (a one-big-jump scenario). Such results are known when α∈(0,2) (large deviations always follow a one big-jump scenario) or when the random variables admit a moment of orde

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26

Pindado, Santiago, Alfredo Sanz, and Alain Wery. "Deviation of Cup and Propeller Anemometer Calibration Results with Air Density." Energies 5, no. 3 (2012): 683–701. http://dx.doi.org/10.3390/en5030683.

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27

Korolyuk, V. S., and O. Melyaeva. "Martingale estimates for the distribution of the deviation of density estimates." Ukrainian Mathematical Journal 38, no. 1 (1986): 94–97. http://dx.doi.org/10.1007/bf01056768.

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28

Hiai, Fumio, and Dénes Petz. "Eigenvalue Density of the Wishart Matrix and Large Deviations." Infinite Dimensional Analysis, Quantum Probability and Related Topics 01, no. 04 (1998): 633–46. http://dx.doi.org/10.1142/s021902579800034x.

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A large deviation theorem is obtained for a certain sequence of random measures which includes the empirical eigenvalue distribution of Wishart matrices, as the matrix size tends to infinity. The rate function is convex and one of its ingredients is the logarithmic energy. In the case of the singular Wishart matrix, the limit distribution has an atom.

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29

Deepti, Mandsorwale, and Sharma Bindu. "Experimental and validation of significance and accuracy of oxidized low-density lipoproteins and myeloperoxidase in the screening of cardio-vascular disease." ScienceRise: Medical Science, no. 2(47) (March 31, 2022): 33–38. https://doi.org/10.15587/2519-4798.2022.254042.

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<strong>The aim. </strong>To access the superiority of myeloperoxidase & oxidized low-density lipoproteins over each other acts as a better predictive marker gaining information regarding the severity of cardiovascular disease. <strong>Materials and methods</strong>. 215 subjects are taken into consideration of which 54 are healthy controls, 52 are from stable angina pectoris, 53 are taken from unstable angina pectoris and 56 subjects are from acute myocardial infarction. Lipid profile parameters, oxidative stress markers, plasma myeloperoxidase and plasma oxidized low density lipopro

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30

Whittle, P. "Large-deviation expressions for the distribution of first-passage coordinates." Advances in Applied Probability 27, no. 3 (1995): 692–710. http://dx.doi.org/10.2307/1428130.

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We consider the distribution of the free coordinates of a time-homogeneous Markov process at the time of its first passage into a prescribed stopping set. This calculation (for an uncontrolled process) is of interest because under some circumstances it enables one to calculate the optimal control for a related controlled process. Scaling assumptions are made which allow the application of large deviation techniques. However, the first-order evaluation obtained by these techniques is often too crude to be useful, and the second-order correction term must be calculated. An expression for this co

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31

Whittle, P. "Large-deviation expressions for the distribution of first-passage coordinates." Advances in Applied Probability 27, no. 03 (1995): 692–710. http://dx.doi.org/10.1017/s0001867800027117.

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We consider the distribution of the free coordinates of a time-homogeneous Markov process at the time of its first passage into a prescribed stopping set. This calculation (for an uncontrolled process) is of interest because under some circumstances it enables one to calculate the optimal control for a related controlled process. Scaling assumptions are made which allow the application of large deviation techniques. However, the first-order evaluation obtained by these techniques is often too crude to be useful, and the second-order correction term must be calculated. An expression for this co

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32

Guo, Hui, Guomin Gao, Wei Zhou, Jiajun Liu, and Liangjun Hao. "Design of Load and Bale Density Monitoring and Control System for a Wheeled Self-Propelled Square Baler." Journal of the ASABE 65, no. 3 (2022): 599–608. http://dx.doi.org/10.13031/ja.14813.

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HIGHLIGHTSA load and bale density monitoring and control system for a wheeled self-propelled square baler is proposed.A hydraulic circuit and weighing device are designed, and a bale density control model is established on this basis.The relationships among the main parameters affecting the operation of the control system are determined.The control system improved the automation and reliability of the square baler machine as a low-cost solution.Abstract. This study investigated baler load monitoring and automatic adjustment of bale density. A load monitoring and bale density adjustment system

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33

Adak, Debabrata, Dhiraj Kumar Hazra, Sourav Mitra, and Aditi Krishak. "Model-independent reconstruction of UV luminosity function and reionization epoch." Journal of Cosmology and Astroparticle Physics 2024, no. 12 (2024): 010. https://doi.org/10.1088/1475-7516/2024/12/010.

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Abstract We conduct a first comprehensive study of the Luminosity Function (LF) using a non-parametric approach. We use Gaussian Process to fit available luminosity data between redshifts z ∼ 2-8. Our free-form LF in the non-parametric approach rules out the conventional Schechter function model to describe the abundance-magnitude relation at redshifts z=3 and 4. Hints of deviation from the Schechter function are also noticed at redshifts 2, 7 and 8 at lower statistical significance. Significant deviation starts for brighter ionizing sources at M UV ≲ -21. The UV luminosity density data at dif

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34

Shi, Shuangshuang, Yanlin Ge, Lingen Chen, and Huijun Feng. "Performance Optimizations with Single-, Bi-, Tri-, and Quadru-Objective for Irreversible Atkinson Cycle with Nonlinear Variation of Working Fluid’s Specific Heat." Energies 14, no. 14 (2021): 4175. http://dx.doi.org/10.3390/en14144175.

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Considering nonlinear variation of working fluid’s specific heat with its temperature, finite-time thermodynamic theory is applied to analyze and optimize the characteristics of an irreversible Atkinson cycle. Through numerical calculations, performance relationships between cycle dimensionless power density versus compression ratio and dimensionless power density versus thermal efficiency are obtained, respectively. When the design parameters take certain specific values, the performance differences of reversible, endoreversible and irreversible Atkinson cycles are compared. The maximum speci

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35

Wu, Hui Mei, Yi Shan Lou, Zhong Hui Li, Liang Zhu, and Wan Long Huang. "Wellbore Stability Research to the Direction Well in the Salt Layer." Advanced Materials Research 250-253 (May 2011): 4042–45. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.4042.

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The creep of salt layer often leads to tight hole and pipe sticking, while the deviation angle has an important impact on creep rate when drilling directional wells in salt layer. This paper firstly built the creep constitutive model according to the creep property of salt layers, and defined the creep parameters by field data and log data; then built geomechanics model and applied FLAC3Dsoftware to simulate the creep of salt layer, so the safe mud density window drilling the salt layers smoothly is obtained. at the same time, at last analyzed the effect of the deviation angle to the drilling

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36

Lahaye, Sébastien. "Choice of positive distribution law for nuclear data." EPJ Nuclear Sciences & Technologies 4 (2018): 38. http://dx.doi.org/10.1051/epjn/2018047.

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Nuclear data evaluation files in the ENDF6 format provide mean values and associated uncertainties for physical quantities relevant in nuclear physics. Uncertainties are denoted as Δ in the format description, and are commonly understood as standard deviations. Uncertainties can be completed by covariance matrices. The evaluations do not provide any indication on the probability density function to be used when sampling. Three constraints must be observed: the mean value, the standard deviation and the positivity of the physical quantity. MENDEL code generally uses positively truncated Gaussia

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37

Zhang, Guang-shun, Shao-min Huang, Cui Chen, Sen-kui Xu, Dan-dan Zhang, and Xiao-wu Deng. "Evaluating the Therapeutic Dose Distribution of Intensity-Modulated Radiation Therapy for Head and Neck with Cone-Beam Computed Tomography Image: A Methodological Study." BioMed Research International 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/326532.

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An approximate correction method for the CT value-electron density curve of CBCT was established, through comparison and fitting with FBCT images, and applied to evaluate the therapeutic dose of IMRT. The precision of using CBCT for plan calculation was validated by comparing the dose distribution between CBCT- and FBCT-based IMRT plans. Also setup deviations were simulated to evaluate the ability of the CBCT-based calculation for detecting the dose errors caused by positioning deviation. The gamma comparison between CBCT- and FBCT-based dose computations showed that the pass rates of (2%, 2 m

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38

Mandsorwale, Deepti, and Bindu Sharma. "Experimental and validation of significance and accuracy of oxidized low-density lipoproteins and myeloperoxidase in the screening of cardio-vascular disease." ScienceRise: Medical Science, no. 2(47) (March 31, 2022): 33–38. http://dx.doi.org/10.15587/2519-4798.2022.254042.

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The aim. To access the superiority of myeloperoxidase & oxidized low-density lipoproteins over each other acts as a better predictive marker gaining information regarding the severity of cardiovascular disease. Materials and methods. 215 subjects are taken into consideration of which 54 are healthy controls, 52 are from stable angina pectoris, 53 are taken from unstable angina pectoris and 56 subjects are from acute myocardial infarction. Lipid profile parameters, oxidative stress markers, plasma myeloperoxidase and plasma oxidized low density lipoproteins were estimated by kit metho

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39

Agarwa, Seema, and Dhirendra Kumar Sharma. "Ultrasonic velocities and refractive indies of binary liquid mixtures of 1, 4-dioxane with 1 – alkanols (C3, C4, C6 , C8 ) at 303.15 K." International Journal of Advanced Chemistry 9, no. 2 (2022): 201. http://dx.doi.org/10.14419/ijac.v9i2.31715.

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Density (ρ), ultrasonic velocities (u) and refractive indices (n) of the binary mixture between cyclic ether with 1-propanol, 1-butanol, 1-hexanol, 1-octanol for the entire concentration range have been measured at 303.15K, furthermore, deviation in refractive indies from ideal mixture, molar refraction, deviation in molar refraction from ideal values for these mixture has also been evaluated. The deviations from ideality of the acoustical parameters are explained on the basis of molecular interaction between the component molecules in these binary liquid mixtures. The molecular refraction (Rm

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40

Wang, Yuanzu, Aldo Amodeo, Ewan J. O’Connor, et al. "Numerical Weather Predictions and Re-Analysis as Input for Lidar Inversions: Assessment of the Impact on Optical Products." Remote Sensing 14, no. 10 (2022): 2342. http://dx.doi.org/10.3390/rs14102342.

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The atmospheric molecular number density can be obtained from atmospheric temperature and pressure profiles and is a significant input parameter for the inversion of lidar measurements. When measurements of vertical profiles of temperature and pressure are not available, atmospheric models are typically considered a valid alternative option. This paper investigates the influence of different atmospheric models (forecast and reanalysis) on the retrieval of aerosol optical properties (extinction and backscatter coefficients) by applying Raman and elastic-only methods to lidar measurements, to as

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Li, Zhicheng, and Changxi Ma. "Stability Analysis of the New Traffic Flow Lattice Model considering Taillight Effect and Speed Deviation." Journal of Advanced Transportation 2022 (July 20, 2022): 1–11. http://dx.doi.org/10.1155/2022/1716827.

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A new macroscopic traffic flow lattice model is established which considered the taillight effect and velocity deviation. By combining the concept of critical density, the critical condition of taillight triggering is established. The situation of taillight appearing is fully considered, and the influence of taillight effect is analyzed. Through the stability analysis of the model, the stability conditions of the model are obtained. By nonlinear analysis, the mKdV equation is derived which can describe the evolution mechanism of the density wave. From the phase diagram, we can find that the tw

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Zheng, Yue, Wenquan Li, and Feng Qiu. "A Methodology for Choosing between Route Deviation and Point Deviation Policies for Flexible Transit Services." Journal of Advanced Transportation 2018 (August 12, 2018): 1–12. http://dx.doi.org/10.1155/2018/6292410.

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Flexible transit services, which bring together the characteristics of fixed-route transit and demand-responsive transit, have been proven to be cost-efficient in low-density residential areas. In this paper, a methodology is proposed to assist planners in making better decisions when choosing between route deviation policy and point deviation policy, which are two promising types of flexible transit services. A user cost function is developed to measure the service quality of the transit systems, and analytical models are constructed to compare the system performance under both expected and u

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JIN, Y. H., S. P. KOU, J. Q. LIANG, and B. Z. LI. "DEVIATION OF COHERENT STATE CAUSED BY DISSIPATION." Modern Physics Letters B 14, no. 07n08 (2000): 267–75. http://dx.doi.org/10.1142/s0217984900000379.

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The time evolution of a coherent state was studied in the dissipative system, a harmonic oscillator coupling with a bath of harmonic oscillators with Ohmic spectral density. We define a deviation of uncertainty relation versus the squeezed coherent state as [Formula: see text]. It is found that for the case of η ≪ ω0, namely, the weak dissipation, Δ oscillates with a small amplitude. The system is in a squeezed coherent state essentially and the dissipation only leads to a small deviation. For both strong (η ≫ ω0) and critical (η ~ ω0) dissipations, Δ is divergent with respect to t and the coh

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Zieja, Mariusz, and Mariusz Ważny. "A Model for Service Life Control of Selected Device Systems." Polish Maritime Research 21, no. 2 (2014): 45–49. http://dx.doi.org/10.2478/pomr-2014-0018.

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Abstract This paper presents a way of determining distribution of limit state exceedence time by a diagnostic parameter which determines accuracy of maintaining zero state. For calculations it was assumed that the diagnostic parameter is deviation from nominal value (zero state). Change of deviation value occurs as a result of destructive processes which occur during service. For estimation of deviation increasing rate in probabilistic sense, was used a difference equation from which, after transformation, Fokker-Planck differential equation was obtained [4, 11]. A particular solution of the e

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Slepian, Zachary, and Robert N. Cahn. "An idealized model for collapse of a molecular core within a filament." Monthly Notices of the Royal Astronomical Society 522, no. 1 (2023): 381–93. http://dx.doi.org/10.1093/mnras/stad431.

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ABSTRACT We present an analytic treatment of the self-similar collapse of a uniform density ellipsoid to linear order in the deviations from sphericity. First we obtain a self-consistent closed-form solution for the evolution of an isolated ellipsoid and then impose the effects of an external forcing. This model describes the evolution under gravity of a pre-stellar core of molecular gas embedded in a much larger and lower-density filament. We compare with numerical solutions for the collapse without the limitation of small deviations. These show how the external perturbing force producing the

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Wang, Feng, Yifan Song, Wang Dou, et al. "High Power Density IGBT Loss Calculation Model and Analysis." Energies 18, no. 4 (2025): 997. https://doi.org/10.3390/en18040997.

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This paper presents the establishment of an accurate loss model for high-power-density IGBT modules used in electric vehicles, leveraging the thermal simulation capabilities of the power electronics simulation software PLECS 4.1. The study aims to address the significant influence of IGBT losses on the energy efficiency and reliability of electric vehicles. A simulation model was built using the SVPWM modulation strategy to drive a three-phase inverter, and the average loss method was employed to determine both conduction and switching losses. The simulation results were compared with calculat

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Ishihara, Masamichi. "Effects of the Tsallis distribution in the linear sigma model." International Journal of Modern Physics E 24, no. 11 (2015): 1550085. http://dx.doi.org/10.1142/s0218301315500858.

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The effects of the Tsallis distribution which has two parameters, [Formula: see text] and [Formula: see text], on physical quantities are studied using the linear sigma model in chiral phase transitions. The Tsallis distribution approaches the Boltzmann–Gibbs distribution as [Formula: see text] approaches one. The parameter [Formula: see text] dependences of the condensate and mass for various [Formula: see text] are shown, where [Formula: see text] is called temperature. The critical temperature and energy density are described with digamma function, and the [Formula: see text] dependences of

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Bakovets, Nickolay V., and Ekaterina N. Konicheva. "Measuring liquid density in a system for ensuring uniformity of measurements." Journal of the Belarusian State University. Physics, no. 3 (October 27, 2022): 113–19. http://dx.doi.org/10.33581/2520-2243-2022-3-113-119.

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The article presents the results of a study aimed at creating the national standard for liquid density. The standard provides reproduction, storage and transmission of the liquid density unit in the range from 650 to 2000 kg/m3. Based on the method of hydrostatic weighing, the measurement of liquid density was implemented in accordance with the GOST OIML R 111-1-2009 «State system for ensuring the uniformity of measurements. Weights of classes Е1, Е2, F1, F2, M1, M1–2, M2, M2–3 and M3. Part 1. Metrological and technical requirements». It is shown that the use of a high-precision mass comparato

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Mumah, S.N., H.F. Akande, K.Y. Mudi, I.O. Olaniyan, and F. Samuel. "Formulation of Correlations for Calculating Densities and Thermal Conductivities of an Ammonia-Water Solution." Nigerian Research Journal of Engineering and Environmental Sciences 6, no. 2 (2021): 649–62. https://doi.org/10.5281/zenodo.5805223.

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<em>Liquid and vapour density and thermal conductivity values are essential properties necessary for designing and simulating ammonia-water refrigeration systems. Previous works on the estimation of these thermodynamic properties have shown varying results. It is therefore necessary to develop correlations that can accurately depict the variations of these properties with relevant variables and compare the results with experimental data. This paper presented procedures for developing correlations for the pure components and then used the correlations to generate liquid and vapour densities and

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Cao, Yupeng, Jiangwei Cao, Zhiguo Zhou, and Zhiwen Liu. "Aircraft Track Anomaly Detection Based on MOD-Bi-LSTM." Electronics 10, no. 9 (2021): 1007. http://dx.doi.org/10.3390/electronics10091007.

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In order to ensure flight safety and eliminate hidden dangers, it is very important to detect aircraft track anomalies, which include track deviations and track outliers. Many existing track anomaly detection methods cannot make full use of multidimensional information of the relevant track. Based on this problem, an aircraft track anomaly detection method based on the combination of the Multidimensional Outlier Descriptor (MOD) and the Bi-directional Long-Short Time Memory network (Bi-LSTM) is proposed in this paper. Firstly, track deviation detection is transformed into the track density cla

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