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Journal articles on the topic 'Force histogram'

Author: Grafiati
Published: 25 May 2024

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1

Xue, Hao, and Hong Jun Fu. "Characterization of the Interphase in Carbon Fiber/Epoxy Composites Using Force Modulation Atomic Force Microscope." Advanced Materials Research 602-604 (December 2012): 53–56. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.53.

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In order to describe directly interphase properties of composite, force modulation of atomic force microscopy is adopted to study the cross-section of unidirectional carbon fiber/epoxy composites systematically. Research results indicate that in force modulation mode of AFM, relative stiffness of various phases distinct in distribution, which is described by probability histogram of relative stiffness. By comparison of probability histogram of relative stiffness nearby interphase of untreated and oxidation treated by ozone composites, the relative stiffness change oxidation treated one was mor
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2

Lelièvre, Tony, Lise Maurin, and Pierre Monmarché. "The adaptive biasing force algorithm with non-conservative forces and related topics." ESAIM: Mathematical Modelling and Numerical Analysis 56, no. 2 (2022): 529–64. http://dx.doi.org/10.1051/m2an/2022010.

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We propose a study of the Adaptive Biasing Force method’s robustness under generic (possibly non-conservative) forces. We first ensure the flat histogram property is satisfied in all cases. We then introduce a fixed point problem yielding the existence of a stationary state for both the Adaptive Biasing Force and Projected Adapted Biasing Force algorithms, relying on generic bounds on the invariant probability measures of homogeneous diffusions. Using classical entropy techniques, we prove the exponential convergence of both biasing force and law as time goes to infinity, for both the Adaptive
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Yang, Guifeng, Jiulun Fan, and Dong Wang. "Recursive Algorithms of Maximum Entropy Thresholding on Circular Histogram." Mathematical Problems in Engineering 2021 (March 24, 2021): 1–13. http://dx.doi.org/10.1155/2021/6653031.

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Circular histogram thresholding is a novel color image segmentation method, which makes full use of the hue component color information of the image, so that the desired target can be better separated from the background. Maximum entropy thresholding on circular histogram is one of the exist circular histogram thresholding methods. However, this method needs to search for a pair of optimal thresholds on the circular histogram of two-class thresholding in an exhaustive way, and its running time is even longer than that of the existing circular histogram thresholding based on the Otsu criteria,
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4

Chapple, William D. "Regulation of Muscle Stiffness During Periodic Length Changes in the Isolated Abdomen of the Hermit Crab." Journal of Neurophysiology 78, no. 3 (1997): 1491–503. http://dx.doi.org/10.1152/jn.1997.78.3.1491.

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Chapple, William. Regulation of muscle stiffness during periodic length changes in the isolated abdomen of the hermit crab. J. Neurophysiol. 78: 1491–1503, 1997. Reflex activation of the ventral superficial muscles (VSM) in the abdomen of the hermit crab, Pagurus pollicarus, was studied using sinusoidal and stochastic longitudinal vibration of the muscle while recording the length and force of the muscle and the spike times of three exciter motoneurons. In the absence of vibration, the interspike interval histograms of the two larger motoneurons were bimodal; cutting sensory nerves containing
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5

Janosi, Lorant, and Manolis Doxastakis. "Accelerating flat-histogram methods for potential of mean force calculations." Journal of Chemical Physics 131, no. 5 (2009): 054105. http://dx.doi.org/10.1063/1.3183165.

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6

Chirico, Giuseppe. "Effect of a trapping force on a photon-counting histogram." Applied Optics 41, no. 4 (2002): 593. http://dx.doi.org/10.1364/ao.41.000593.

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7

Stevens, Forrest, Yu-Shiu Lo, Joel M. Harris, and Thomas P. Beebe. "Computer Modeling of Atomic Force Microscopy Force Measurements: Comparisons of Poisson, Histogram, and Continuum Methods." Langmuir 15, no. 1 (1999): 207–13. http://dx.doi.org/10.1021/la980683k.

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8

Jun, Zhang, Chang Qingbing, and Ren Zongjin. "Research on a non-linear calibration method for dynamometer." Sensor Review 40, no. 2 (2020): 167–73. http://dx.doi.org/10.1108/sr-07-2019-0181.

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Purpose The purpose of this paper is to solve the problem that the relationship between loading forces, which were applied at different positions on a plane, and output values of load-sharing dynamometer is non-linear. Design/methodology/approach First, the analytical model of ISPM (isodynamic surface proportional mapping method) method, which is used to calibrate dynamometer, was established. Then, a series of axial force calibration tests were performed on a load-sharing dynamometer at different loading positions. Finally, according to output values, calibration forces at different loading p
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9

Songneam, Nattapong. "Thai Sign Language Image Recognition for the Hearing-Impaired using Radial Inverse Force Histogram combined with Max-Min Boundary." International Journal of Engineering and Advanced Technology 10, no. 5 (2021): 422–33. http://dx.doi.org/10.35940/ijeat.e2868.0610521.

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Sign language image recognition is also a very interesting research topic. Because it can be applied to help normal people understand and use it as a communication tool for the hearing impaired. The objectives of this research were to: 1) study and analyze Thai Sign Language image recognition image data for hearing impaired, 2) develop Thai Sign Language image recognition system for hearing impaired by using new techniques, and 3) measure the efficiency of Thai sign language image recognition for hearing impaired using Radial Inverse Force Histogram and the Maximum and Minimum boundary values.
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10

Tabbone, Salvatore, and Laurent Wendling. "Color and grey level object retrieval using a 3D representation of force histogram." Image and Vision Computing 21, no. 6 (2003): 483–95. http://dx.doi.org/10.1016/s0262-8856(03)00016-7.

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11

Wendling, L., I. Debled-Rennesson, and H. Nasser. "Multilevel polygonal descriptor matching defined by combining discrete lines and force histogram concepts." Multimedia Tools and Applications 79, no. 47-48 (2019): 34701–15. http://dx.doi.org/10.1007/s11042-019-7531-6.

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12

Cukier, Robert I. "Variance of a Potential of Mean Force Obtained Using the Weighted Histogram Analysis Method." Journal of Physical Chemistry B 117, no. 47 (2013): 14785–96. http://dx.doi.org/10.1021/jp407956c.

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13

Yao, Yaxuan, Lingling Ren, Sitian Gao, and Shi Li. "Histogram method for reliable thickness measurements of graphene films using atomic force microscopy (AFM)." Journal of Materials Science & Technology 33, no. 8 (2017): 815–20. http://dx.doi.org/10.1016/j.jmst.2016.07.020.

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14

Fang, Shu, De Liang Li, Li Tao Liu, and Zhen Wei Zhang. "Pitting Corrosion Diagnosis of Bearing Based on Power Cepstrum and Histogram." Advanced Materials Research 512-515 (May 2012): 1672–76. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.1672.

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The axle assembly of fire robot need endure both heavy load and high impact force, and the pitting corrosion in the bearing race become a commom fault. In this paper, the vibration of bearing both in the inner ring and outer ring was analyzed, the characteristics of bearing with pitting corrosion were also analyzed, and based on those characteristics a new method for pitting corrosion diagnosis were proposed, in this method the power cepstrum in the axial direction and histogram of the vibration amplitude in the radial direction were used for detecting the pitting corrosion of bearing, and exp
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15

Wheeler, John, Zhenting Jiang, David J. Prior, and Jan Tullis. "Dynamic Recrystallisation of Quartz." Materials Science Forum 467-470 (October 2004): 1243–50. http://dx.doi.org/10.4028/www.scientific.net/msf.467-470.1243.

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It is generally agreed that the driving force (plastic strain energy) is much too small to allow "classical" nucleation during static and dynamic recrystallisation, and that rotation/growth of subgrains is an alternative. The latter explanation predicts that new grains should begin at low angles to old grains. We have used electron backscatter diffraction on an experimentally deformed quartz polycrystal that has deformed by dislocation creep and partially recrystallised. In a region shortened by about 30% new grains are at high angles (much greater than 15º) to adjacent parent grains. A histog
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Uyeda, Chiaki, Keiji Hisayoshi, and Kentaro Terada. "Separation of Particles Composed of a Solid Solution [Mg2SiO4 -Fe2SiO4] in the Sequence of Fe2+ Concentration Using a Pocketsize Magnetic-Circuit." Key Engineering Materials 843 (May 2020): 105–9. http://dx.doi.org/10.4028/www.scientific.net/kem.843.105.

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Magentic separation generally required strong magnetic forces induced in ferromagnetic or strong paramagnetic particles; in order to realize the separation in diamagnetic or weak paramagnetic particles, it was necessary to attach magnetic beads or magnetic ions to induce the strong magnetic force. A method to separate mixture of weak magnetic particles by its concentration of paramagnetic ferrous ion is newly proposed, which does not require the abovementioned magnetic attachments. The efficiently of the new method is experimentally examined using a pocketsize magnetic circuit (4.5 cm x2.0 cm
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17

Femi, D., G. Veera Babu, and B. V Sumanth Kumar Reddy. "A New Method for Forensic Detection of Image Manipulation." International Journal of Engineering & Technology 7, no. 2.19 (2018): 61. http://dx.doi.org/10.14419/ijet.v7i2.19.15048.

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As the use of digital images has expanded, so has the methods and the motivating force to make advanced picture frauds. As needs be, there is an incredible requirement for advanced image legal sciences methods equipped for identifying image changes and manufactured images. We demonstrate that pixel value mappings desert factual follows which we might allude to as a mappings inherent unique finger impression in an image pixel value histogram. We at that point propose scientific techniques for recognizing general structures all around and privately connected complexity upgrade and in addition a
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18

Qiu, Hanshuo, Xiangzi Zhang, Huaixiao Yue, and Jizhao Liu. "A Novel Eighth-Order Hyperchaotic System and Its Application in Image Encryption." Mathematics 11, no. 19 (2023): 4099. http://dx.doi.org/10.3390/math11194099.

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With the advancement in information and communication technologies (ICTs), the widespread dissemination and sharing of digital images has raised concerns regarding privacy and security. Traditional methods of encrypting images often suffer from limitations such as a small key space and vulnerability to brute-force attacks. To address these issues, this paper proposes a novel eighth-order hyperchaotic system. This hyperchaotic system exhibits various dynamic behaviors, including hyperchaos, sub-hyperchaos, and chaos. The encryption scheme based on this system offers a key space larger than 2233
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19

Butt, Khushbu Khalid, Guohui Li, Sajid Khan, and Sohaib Manzoor. "Fast and Efficient Image Encryption Algorithm Based on Modular Addition and SPD." Entropy 22, no. 1 (2020): 112. http://dx.doi.org/10.3390/e22010112.

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Bit-level and pixel-level methods are two classifications for image encryption, which describe the smallest processing elements manipulated in diffusion and permutation respectively. Most pixel-level permutation methods merely alter the positions of pixels, resulting in similar histograms for the original and permuted images. Bit-level permutation methods, however, have the ability to change the histogram of the image, but are usually not preferred due to their time-consuming nature, which is owed to bit-level computation, unlike that of other permutation techniques. In this paper, we introduc
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20

Blaszczyk, Janusz W., Bogdan Bacik, and Grzegorz Juras. "Clinical Assessment of Postural Stability." Journal of Mechanics in Medicine and Biology 03, no. 02 (2003): 135–44. http://dx.doi.org/10.1142/s0219519403000715.

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One of the most important applications of postural sway analysis is the detection of such impairments to the motor system that would allow us to predict risk of falling. Force plate posturography is a commonly used clinical method for the evaluation of postural instability. The diagnostic value of postural sway represented here by oscillations of the center-of-foot pressure (COFP) is being questioned very often. These diagnostic problems result from the lack of an adequate and reliable method of sway analysis — a method that would present a clear connection between stability and quality of pos
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21

F. Abbas, Safa, and Lahieb M. Jawad. "PASS POINT SELECTION OF AUTOMATIC GRAPHICAL PASSWORD AUTHENTICATION TECHNIQUE BASED ON HISTOGRAM METHOD." Iraqi Journal of Information and Communication Technology 6, no. 1 (2023): 28–39. http://dx.doi.org/10.31987/ijict.6.1.212.

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Graphical passwords, as opposed to textual passwords, require the user to pick pictures or draw symbols rather than input written letters. They are an option that may be explored in order to get over the issues that are caused by the system of passwords that are based on text. It has been hypothesized that graphical passwords are more difficult to crack using a brute force technique or to figure out through guessing. This paper proposes an authentication system based on a graphical password method. The proposed system computes the password points using histogram arithmetic and encrypts the cho
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22

El-Hoseny, Heba M., Wael Abd El-Rahman, El-Sayed M. El-Rabaie, Fathi E. Abd El-Samie, and Osama S. Faragallah. "An efficient DT-CWT medical image fusion system based on modified central force optimization and histogram matching." Infrared Physics & Technology 94 (November 2018): 223–31. http://dx.doi.org/10.1016/j.infrared.2018.09.003.

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23

Mohammed, Imran, Iain B. Collings, and Stephen V. Hanly. "A Gravity Inspired Approach to Multiple Target Localization Through-the-Wall Using Non-Coherent Bi-Static Radar." Electronics 10, no. 13 (2021): 1524. http://dx.doi.org/10.3390/electronics10131524.

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This paper considers multiple target localization using a non-coherent bi-static radar with multiple receivers, where the targets are located behind a wall. This paper presents a new clustering algorithm inspired by Newtonian gravity that iteratively groups particles at target locations and eliminates particles at non-target locations. We first propose a histogram based pre-processing algorithm that imposes a grid over the region of interest and defines a particle with measurement-dependent mass for each grid square. We then calculate a Newtonian inspired force on each of the particles and mov
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24

Zhang, Tong, Baoying Shen, and Xinghua Shi. "“Crawling” on the self-assembly system: A molecular simulation of peptide position adjusting over self-assembly block." MATEC Web of Conferences 189 (2018): 02002. http://dx.doi.org/10.1051/matecconf/201818902002.

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By combining non-equilibrium molecular dynamics(NEMD), umbrella sampling, and weighted histogram analysis method(WHAM), we calculated the potential of mean force of histidine peptide moving over a self-assembly structure. The reaction coordinate is along the main chain direction of the histidine peptide in the self-assembly structure. It is found that the energy needed for the histidine peptide with 3 and 5 residues while moving along the reaction coordinate is around -2.2 kCal/mol and -7.4 kCal/mol, respectively. And the histidine peptide crawls along the reaction coordinate, performing a sna
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25

Rashid Shakir, Huda, Sadiq Abdul Aziz Mehdi, and Anwar Abbas Hattab. "Chaotic-DNA system for efficient image encryption." Bulletin of Electrical Engineering and Informatics 11, no. 5 (2022): 2645–56. http://dx.doi.org/10.11591/eei.v11i5.3886.

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In order to prevent unwanted access to sensitive data by unauthorized individuals, color images are encoded. Because chaotic-deoxyribonucleic acid (chaotic-DNA) encoding can make information highly secure, it is often employed in image encryption. In this study, a new image encryption technique has been proposed based on a new 4D-chaotic system and DNA computing. The algorithm consists of two phases: in the first phase, the pixel positions are permuted by chaotic sequences. In the second phase, according to the concept of DNA cryptography, a set of operations (like DNA addition, DNA XOR, DNA s
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26

Revelly, JP, F. Feihl, T. Liebling, and C. Perret. "Time constant histograms from the forced expired volume signal: a clinical evaluation." European Respiratory Journal 2, no. 6 (1989): 536–42. http://dx.doi.org/10.1183/09031936.93.02060536.

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We evaluated a multicompartment analysis of forced expiration, based on modelling the lung as a set of twenty parallel compartments emptying exponentially with time constants ranging from 0.1-10 s; the forced expired volume signal was represented by a histogram showing the fraction of forced vital capacity as a function of compartmental time constants. We applied this technique to 80 healthy and 12 asthmatic subjects. The histograms computed from three consecutive forced expirations were poorly reproducible in 18 of the 80 healthy and 2 of the 12 asthmatic subjects. In the asthmatics, the time
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27

Debenedetti, Pablo G., Francesco Sciortino, and Gül H. Zerze. "Second critical point in two realistic models of water." Science 369, no. 6501 (2020): 289–92. http://dx.doi.org/10.1126/science.abb9796.

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The hypothesis that water has a second critical point at deeply supercooled conditions was formulated to provide a thermodynamically consistent interpretation of numerous experimental observations. A large body of work has been devoted to verifying or falsifying this hypothesis, but no unambiguous experimental proof has yet been found. Here, we use histogram reweighting and large-system scattering calculations to investigate computationally two molecular models of water, TIP4P/2005 and TIP4P/Ice, widely regarded to be among the most accurate classical force fields for this substance. We show t
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28

Nowak, Andrzej S., and Hid N. Grouni. "Serviceability considerations for guideways and bridges." Canadian Journal of Civil Engineering 15, no. 4 (1988): 534–38. http://dx.doi.org/10.1139/l88-073.

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Serviceability limit states such as fatigue, cracking, corrosion, permanent deformations (kinking), deflection, and vibration are considered. A probability-based approach to develop design criteria is proposed. Load history is represented by load histogram and ADTT (average daily truck traffic) volume. Criteria for the selection of acceptable serviceability levels can be derived from the available test data, bridge surveys, and theoretical studies. Simple format is suggested for the code, with a characteristic value representing load effect and an allowable stress or force representing the str
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29

Moreno, Plinio, Dario Figueira, Alexandre Bernardino, and José Santos-Victor. "People and Mobile Robot Classification Through Spatio-Temporal Analysis of Optical Flow." International Journal of Pattern Recognition and Artificial Intelligence 29, no. 06 (2015): 1550021. http://dx.doi.org/10.1142/s0218001415500214.

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The goal of this work is to distinguish between humans and robots in a mixed human-robot environment. We analyze the spatio-temporal patterns of optical flow-based features along several frames. We consider the Histogram of Optical Flow (HOF) and the Motion Boundary Histogram (MBH) features, which have shown good results on people detection. The spatio-temporal patterns are composed of groups of feature components that have similar values on previous frames. The groups of features are fed into the FuzzyBoost algorithm, which at each round selects the spatio-temporal pattern (i.e. feature set)
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Jirjees, Seerwan Waleed, and Farah Flayyeh Alkhalid. "IMGTXT: Image to Text Encryption Based on Encoding Pixel Contrasts." Mathematical Modelling of Engineering Problems 9, no. 2 (2022): 539–44. http://dx.doi.org/10.18280/mmep.090233.

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Nowadays, when data is exchanged over the internet, the security of data is critical in every element of life. Unauthorized network access is possible due to information transmission. As image usage increased in most communications, image privacy became an issue. Image encryption is one of the methods used to protect images online. In this paper, we proposed a new approach called IMGTXT that converts the image to text by coding the pixel values depending on locations then encrypts them by any trust encryption text algorithm, so that this method provides resistance to a variety of attacks such
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31

El-Hoseny, Heba M., Zeinab Z. El Kareh, Wael A. Mohamed, et al. "An optimal wavelet-based multi-modality medical image fusion approach based on modified central force optimization and histogram matching." Multimedia Tools and Applications 78, no. 18 (2019): 26373–97. http://dx.doi.org/10.1007/s11042-019-7552-1.

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32

Ramasamy, Priya, Vidhyapriya Ranganathan, Seifedine Kadry, Robertas Damaševičius, and Tomas Blažauskas. "An Image Encryption Scheme Based on Block Scrambling, Modified Zigzag Transformation and Key Generation Using Enhanced Logistic—Tent Map." Entropy 21, no. 7 (2019): 656. http://dx.doi.org/10.3390/e21070656.

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Nowadays, the images are transferred through open channels that are subject to potential attacks, so the exchange of image data requires additional security in many fields, such as medical, military, banking, etc. The security factors are essential in preventing the system from brute force and differential attacks. We propose an Enhanced Logistic Map (ELM) while using chaotic maps and simple encryption techniques, such as block scrambling, modified zigzag transformation for encryption phases, including permutation, diffusion, and key stream generation to withstand the attacks. The results of e
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33

Panthi, Bikash, and Nurapati Pantha. "Hydrophobicity of small alkane molecules (propane dimer) in solvents: a classical molecular dynamics study." BIBECHANA 17 (January 1, 2020): 1–12. http://dx.doi.org/10.3126/bibechana.v17i0.25504.

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Molecular Dynamics (MD) simulations of propane dimer in different solvents (water, acetonitrile and methanol) were performed by using CHARMM platform for modeling the solute and solvents. A series of Umbrella sampling MD simulations were carried out in each solvent separately and potential of mean force (PMFs) were calculated by using Weighted Histogram Analysis Method. Results show that two minima (contact minima and solvent separated minima) characterize the PMF of propane dimer in all three solvent environments. The contact minima are deeper and less sensitive to solvent environment for its
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34

Ngo, Van A., Ilsoo Kim, Toby W. Allen, and Sergei Y. Noskov. "Estimation of Potentials of Mean Force from Nonequilibrium Pulling Simulations Using Both Minh-Adib Estimator and Weighted Histogram Analysis Method." Journal of Chemical Theory and Computation 12, no. 3 (2016): 1000–1010. http://dx.doi.org/10.1021/acs.jctc.5b01050.

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Czaplewski, Cezary, Sebastian Kalinowski, Adam Liwo, and Harold A. Scheraga *. "Comparison of two approaches to potential of mean force calculations of hydrophobic association: particle insertion and weighted histogram analysis methods." Molecular Physics 103, no. 21-23 (2005): 3153–67. http://dx.doi.org/10.1080/00268970500233797.

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36

Litvinov, Rustem I., Henry Shuman, David H. Farrell, Joel S. Bennett та John W. Weisel. "Interaction of the Integrin αIIbβ3 with Monomeric Fibrin at the Single-Molecule Level." Blood 114, № 22 (2009): 4018. http://dx.doi.org/10.1182/blood.v114.22.4018.4018.

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Abstract Abstract 4018 Poster Board III-954 Although platelets aggregated with fibrin constitute major components of in vivo blood clots and thrombi, heretofore most research has focused on fibrinogen's role in platelet aggregation. The integrin αIIbβ3 has been shown to primarily mediate platelet-fibrin interactions, but the mechanism of αIIbβ3 binding to fibrin is largely unknown and may be significantly different from binding to fibrinogen. To elucidate mechanisms of platelet interactions with fibrin, we have compared the overall reactivity, binding strength, and specificity towards αIIbβ3 o
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Matsui, Atsuya, Jean-Pierre Bellier, Takeshi Kanai та ін. "The Effect of Ethanol on Disassembly of Amyloid-β1-42 Pentamer Revealed by Atomic Force Microscopy and Gel Electrophoresis". International Journal of Molecular Sciences 23, № 2 (2022): 889. http://dx.doi.org/10.3390/ijms23020889.

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The most common type of dementia, Alzheimer’s disease, is associated with senile plaques formed by the filamentous aggregation of hydrophobic amyloid-β (Aβ) in the brains of patients. Small oligomeric assemblies also occur and drugs and chemical compounds that can interact with such assemblies have attracted much attention. However, these compounds need to be solubilized in appropriate solvents, such as ethanol, which may also destabilize their protein structures. As the impact of ethanol on oligomeric Aβ assembly is unknown, we investigated the effect of various concentrations of ethanol (0 t
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Rahmawati, Weny Mistarika, and Febri Liantoni. "Penggunaan Arnold Cat Map Dan Beta Chaotic Map Pada Enkripsi Data Citra." Jurnal ELTIKOM 2, no. 2 (2018): 50–57. http://dx.doi.org/10.31961/eltikom.v2i2.85.

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Penggunaan citra dalam kehidupan sehari-hari mengalami peningkatan seiring berkembangnya teknologi informasi. Untuk itu diperlukan sebuah cara agar data citra dapat ditransmisikan dengan aman. Salah satunya adalah dengan melakukan enkripsi pada citra. Citra terenkripsi akan membuat citra hanya dapat dibaca oleh pihak yang berwenang saja. Skema yang digunakan pada proses enkripsi dapat berupa permutasi. Pada penelitian ini menggunakan Arnold cat map untuk melakukan permutasi pada enkripsi citra. Namun permutasi saja tidak cukup aman untuk mengenkripsi citra. Citra yang telah dipermutasi selanju
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Akiwate, Bahubali, and Latha Parthiban. "Efficient DNA Cryptographic Framework for Secured Data Encryption Based on Chaotic Sequences." International Journal of Information Security and Privacy 16, no. 1 (2022): 1–18. http://dx.doi.org/10.4018/ijisp.2022010114.

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Data is big, data is diverse, data comes in zillion formats, it is important to ensure the safety and security of the shared data. With existing systems limited and evolving, the objective of the current research work is to develop a robust Image Encryption technique that is adept and effective at handling heterogeneous data and can withstand state-of-the-art hacking efforts such as brute force attacks, cropping attacks, mathematical attacks, and differential attacks. The proposed Efficient DNA Cryptographic System (EDCS) model presents a pseudorandom substitution method using logistic sine co
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Cao, Pengxin, Xiaoqing Li, and Mingyue Ding. "A Fusion Method for Atomic Force Acoustic Microscopy Cell Imaging Based on Local Variance in Non-Subsampled Shearlet Transform Domain." Applied Sciences 10, no. 21 (2020): 7424. http://dx.doi.org/10.3390/app10217424.

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Atomic force acoustic microscopy (AFAM) is a measurement method that uses the probe and acoustic wave to image the surface and internal structures of different materials. For cellular material, the morphology and phase images of AFAM reflect the outer surface and internal structures of the cell, respectively. This paper proposes an AFAM cell image fusion method in the Non-Subsampled Shearlet Transform (NSST) domain, based on local variance. First, NSST is used to decompose the source images into low-frequency and high-frequency sub-bands. Then, the low-frequency sub-band is fused by the weight
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Bawa, Parveen, and Blair Calancie. "Rate-coding of spinal motoneurons with high-frequency magnetic stimulation of human motor cortex." Canadian Journal of Physiology and Pharmacology 82, no. 8-9 (2004): 740–48. http://dx.doi.org/10.1139/y04-069.

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Rate-coding in spinal motoneurons was studied using high-frequency magnetic stimulation of the human motor cortex. The subject made a weak contraction to cause rhythmic (i.e., tonic) discharge of a single motor unit in flexor (or extensor) carpi radialis or tibialis anterior, while the motor cortical representation of that muscle was stimulated with brief trains of pulses from a Pyramid stimulator (4 Magstim units connected by 3 BiStim modules). An "m@n" stimulus train consisted of m number of pulses (1–4), with an interpulse interval (IPI) of n ms (1–6). Peristimulus time histograms were cons
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Prenga, Dode, Elmira Kushta, and Fatjon Musli. "Enhancing Concept Inventory Analysis by Using Indexes, Optimal Histogram Idea, and the Likert Analysis." Journal of Human, Earth, and Future 4, no. 1 (2023): 103–20. http://dx.doi.org/10.28991/hef-2023-04-01-08.

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Since the introduction of the Force Concept Inventory (FCI) in 1992, the CI tests have been widely used for measuring conceptual knowledge and for studying teaching issues in almost all disciplines and levels of study. A standard concept inventory analysis includes the design of a qualitative test, adequate realization of testing, calibration procedure, and comprehensive analysis of its findings. Usually, the CI test calibration is carried out through the Rasch sociometric technique, which is also used for calculating crucial indicators of knowledge such as item difficulties, students’ abiliti
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Shamsa Kanwal, Saba Inam, Fahima Hajjej, et al. "A New Image Encryption Technique Based on Sine Map, Chaotic Tent Map, and Circulant Matrices." Security and Communication Networks 2022 (October 30, 2022): 1–17. http://dx.doi.org/10.1155/2022/4152683.

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Image encryption is one of the sensitive areas used recently to save information over the Internet and confirms the security on a higher level. A new cryptosystem has been proposed for the encoding and decoding of images using sine map, chaotic tent map, and circulant matrices. The process involves three stages. The sine map is used for the permutation phase. In the substitution phase, the Hill cipher method together with prime circulant matrix are used and a chaotic tent map is used in the diffusion phase. The algorithm becomes impenetrable to resist differential- and statistical-type attacks
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Ray, Sudip, Anil K. Bhowmick, and S. Bandyopadhyay. "Atomic Force Microscopy Studies on Morphology and Distribution of Surface Modified Silica and Clay Fillers in an Ethylene-Octene Copolymer Rubber." Rubber Chemistry and Technology 76, no. 5 (2003): 1091–105. http://dx.doi.org/10.5254/1.3547789.

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Abstract Topographic and phase imaging in tapping mode atomic force microscopy (TMAFM) has been performed to investigate the effect of surface modification of silica and clay fillers on the morphology and the microdispersion of the filler particles in the rubber matrix. The above fillers have been modified by using surface coating agents like an acrylate monomer (trimethylolpropane triacrylate, TMPTA) or a silane coupling agent (triethoxy vinylsilane, TEVS) followed by electron beam modification at room temperature. Both unmodified and surface modified fillers have been incorporated in an ethy
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Rodriguez-Falces, Javier, Francesco Negro, and Dario Farina. "Correlation between discharge timings of pairs of motor units reveals the presence but not the proportion of common synaptic input to motor neurons." Journal of Neurophysiology 117, no. 4 (2017): 1749–60. http://dx.doi.org/10.1152/jn.00497.2016.

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We investigated whether correlation measures derived from pairs of motor unit (MU) spike trains are reliable indicators of the degree of common synaptic input to motor neurons. Several 50-s isometric contractions of the biceps brachii muscle were performed at different target forces ranging from 10 to 30% of the maximal voluntary contraction relying on force feedback. Forty-eight pairs of MUs were examined at various force levels. Motor unit synchrony was assessed by cross-correlation analysis using three indexes: the output correlation as the peak of the cross-histogram (ρ) and the number of
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Elshoush, Huwaida T., Banan M. Al-Tayeb, and Khalil T. Obeid. "Enhanced Serpent algorithm using Lorenz 96 Chaos-based block key generation and parallel computing for RGB image encryption." PeerJ Computer Science 7 (December 17, 2021): e812. http://dx.doi.org/10.7717/peerj-cs.812.

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This paper presents a new approach to enhance the security and performance of the Serpent algorithm. The main concepts of this approach is to generate a sub key for each block using Lorenz 96 chaos and then run the process of encryption and decryption in ECB parallel mode. The proposed method has been implemented in Java, openjdk version “11.0.11”; and for the analysis of the tested RGB images, Python 3.6 was used. Comprehensive experiments on widely used metrics demonstrate the effectiveness of the proposed method against differential attacks, brute force attacks and statistical attacks, whil
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Huang, Huiqing, and Dongsheng Cheng. "3-Image Bit-Level Encryption Algorithm Based on 3D Nonequilateral Arnold Transformation and Hyperchaotic System." Security and Communication Networks 2020 (November 26, 2020): 1–13. http://dx.doi.org/10.1155/2020/8841302.

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In this paper, we propose a novel 3-image bit-level encryption algorithm based on 3D nonequilateral Arnold transformation and hyperchaotic system. Firstly, the three plain images with N × M are decomposed into 8-bit planes and then they overlap into a 3D bit matrix with size N × M × 24 . Then, the 3D bit matrix is scrambled by 3D nonequilateral Arnold transformation and the scrambled 3D bit matrix is integrated and transformed into three 2D pixel-level images. Finally, the hyperchaotic system is used to diffuse the three 2D pixel-level images; then three diffused images are rearranged to be on
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Jayadi, H., N. R. Janat, B. J. Santosa, et al. "Hypocenter Relocation of Local Earthquake using Double Difference Method in Central Sulawesi from BMKG Network Data: Time Periods of July 26 - August 18, 2021." IOP Conference Series: Earth and Environmental Science 1157, no. 1 (2023): 012023. http://dx.doi.org/10.1088/1755-1315/1157/1/012023.

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Abstract Last July 2021, a destructive earthquake occurred in the northern Ampana area, Central Sulawesi, with the epicenter at sea. We investigated the earthquake and found 101 hypocenter points with a magnitude of 2-6 Mw from 26 July to 18 August 2021 using the BMKG network. Of the 101 earthquakes, we relocated the hypocenter using the multiple difference method and obtained 75 earthquake events resulting from the relocation. The results obtained from the relocation are that several earthquake events with a fixed depth of 10 km have been updated. To validate the results, we used a histogram
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Wu, Lewen, Keping Zhou, Feng Gao, Zhongyuan Gu, and Chun Yang. "Research on the Mechanical Characteristics of Cyclic Loading and Unloading of Rock Based on Infrared Thermal Image Analysis." Mathematical Problems in Engineering 2021 (April 10, 2021): 1–16. http://dx.doi.org/10.1155/2021/5578629.

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In the operations of underground rock engineering, such as mining, the formation of goafs is often accompanied by unloading and energy effects. In this study, a cyclic loading and unloading stress test is carried out to analyze the strength characteristics of the loaded samples under different loading and unloading ranges as well as different numbers of cycles. The rock force is accompanied by substantial energy changes. To better fit the energy analysis under cyclic loading and unloading conditions, thermal infrared radiation characteristic analysis is performed during rock loading and unload
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Ali, Hussam J., Talib M. Jawad, and Hiba Zuhair. "Data security using random dynamic salting and AES based on master-slave keys for Iraqi dam management system." Indonesian Journal of Electrical Engineering and Computer Science 23, no. 2 (2021): 1018. http://dx.doi.org/10.11591/ijeecs.v23.i2.pp1018-1029.

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In the present time, dam management is considered one of the important challenges for e-government in Iraq, becuase it needs information technology infrastructure, data integrity and protection of user privacy against Internet threats that render such vital infrastructure ineffective. This struggle between the proposed dam management system (DMS) and a multi-tier secure model specifically for the Fallujah dam (and generally for all dams) which is addressed in this paper as a case study. To do this, a relational database design will discuss the development of a multi-tier secure model for integ
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