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Journal articles on the topic 'PNP problem'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Wu, Yihong, and Zhanyi Hu. "PnP Problem Revisited." Journal of Mathematical Imaging and Vision 24, no. 1 (2005): 131–41. http://dx.doi.org/10.1007/s10851-005-3617-z.

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2

Hamel, Tarek, and Claude Samson. "Riccati Observers for the Nonstationary PnP Problem." IEEE Transactions on Automatic Control 63, no. 3 (2018): 726–41. http://dx.doi.org/10.1109/tac.2017.2726179.

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3

Greener, Mark. "A weighty problem…" Progress in Neurology and Psychiatry 18, no. 5 (2014): 9–12. http://dx.doi.org/10.1002/pnp.345.

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4

Eivazi Adli, Sahand, Maryam Shoaran, and S. Mohammadreza Sayyed Noorani. "GSPnP: simple and geometric solution for PnP problem." Visual Computer 36, no. 8 (2019): 1549–57. http://dx.doi.org/10.1007/s00371-019-01747-x.

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Li, Ming Liang, and Jian Liang Tang. "Solution Classification for Perspective-Three-Point Problem Base on PST Method." Applied Mechanics and Materials 475-476 (December 2013): 1067–70. http://dx.doi.org/10.4028/www.scientific.net/amm.475-476.1067.

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The perspective-n-point (PnP) problem is originated from camera calibration. It is to determine the position and orientation of the camera with respect to a scene object from n correspondent points. And a new stable algorithm by using a geometric constraint called perspective similar triangle (PST) can give new equations to solve P3P. The PST method achieves high stability in the permutation problem and in presence of image noise. Using the complete discrimination system, we obtain the solution classification of the new equation for the P3P problem. The solution classification gives a set of f

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Urban, S., J. Leitloff, and S. Hinz. "MLPNP – A REAL-TIME MAXIMUM LIKELIHOOD SOLUTION TO THE PERSPECTIVE-N-POINT PROBLEM." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences III-3 (June 3, 2016): 131–38. http://dx.doi.org/10.5194/isprsannals-iii-3-131-2016.

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In this paper, a statistically optimal solution to the Perspective-n-Point (PnP) problem is presented. Many solutions to the PnP problem are geometrically optimal, but do not consider the uncertainties of the observations. In addition, it would be desirable to have an internal estimation of the accuracy of the estimated rotation and translation parameters of the camera pose. Thus, we propose a novel maximum likelihood solution to the PnP problem, that incorporates image observation uncertainties and remains real-time capable at the same time. Further, the presented method is general, as is wor

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Urban, S., J. Leitloff, and S. Hinz. "MLPNP – A REAL-TIME MAXIMUM LIKELIHOOD SOLUTION TO THE PERSPECTIVE-N-POINT PROBLEM." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences III-3 (June 3, 2016): 131–38. http://dx.doi.org/10.5194/isprs-annals-iii-3-131-2016.

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In this paper, a statistically optimal solution to the Perspective-n-Point (PnP) problem is presented. Many solutions to the PnP problem are geometrically optimal, but do not consider the uncertainties of the observations. In addition, it would be desirable to have an internal estimation of the accuracy of the estimated rotation and translation parameters of the camera pose. Thus, we propose a novel maximum likelihood solution to the PnP problem, that incorporates image observation uncertainties and remains real-time capable at the same time. Further, the presented method is general, as is wor

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8

Kubíčková, Hana, Karel Jedlička, Radek Fiala, and Daniel Beran. "Indoor Positioning Using PnP Problem on Mobile Phone Images." ISPRS International Journal of Geo-Information 9, no. 6 (2020): 368. http://dx.doi.org/10.3390/ijgi9060368.

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As people grow accustomed to effortless outdoor navigation, there is a rising demand for similar possibilities indoors as well. Unfortunately, indoor localization, being one of the requirements for navigation, continues to be a problem without a clear solution. In this article, we are proposing a method for an indoor positioning system using a single image. This is made possible using a small preprocessed database of images with known control points as the only preprocessing needed. Using feature detection with the SIFT (Scale Invariant Feature Transform) algorithm, we can look through the dat

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9

Lepetit, Vincent, Francesc Moreno-Noguer, and Pascal Fua. "EPnP: An Accurate O(n) Solution to the PnP Problem." International Journal of Computer Vision 81, no. 2 (2008): 155–66. http://dx.doi.org/10.1007/s11263-008-0152-6.

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Zhao, Yue, Yalin Wang, and Qian Cui. "Calculating Intrinsic and Extrinsic Camera Parameters Based on the PnP Problem." Journal of Engineering and Technological Sciences 46, no. 3 (2014): 258–70. http://dx.doi.org/10.5614/j.eng.technol.sci.2014.46.3.2.

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11

SUN, Feng-Mei, and Bo WANG. "A Note on the Roots Distribution and Stability of the PnP Problem." Acta Automatica Sinica 36, no. 9 (2010): 1213–19. http://dx.doi.org/10.3724/sp.j.1004.2010.01213.

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12

Xia, Hui, Wenjing Zhang, Zhijie Yang, Zhenxue Dai, and Yuesuo Yang. "Spectrophotometric Determination of p-Nitrophenol under ENP Interference." Journal of Analytical Methods in Chemistry 2021 (January 7, 2021): 1–9. http://dx.doi.org/10.1155/2021/6682722.

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Engineered nanoparticles (ENPs) have been widely developed in various fields in recent years, resulting in an increasing occurrence of nanoparticles in the natural environment. However, the tiny substances have created unexpected confusion in environmental sample testing due to the negative nanoeffect of ENPs. In this paper, a novel technique of spectrophotometric determination of p-nitrophenol (PNP) was developed under the interfering impact of nano-Fe(OH)3, widely distributed in the natural environment as a typical example of ENPs. Because of the strong absorption at the two characteristic p

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13

Mikhailopulo, Igor, Alexandra Denisova, Yulia Tokunova, et al. "The Chemoenzymatic Synthesis of 2-Chloro- and 2-Fluorocordycepins." Synthesis 49, no. 21 (2017): 4853–60. http://dx.doi.org/10.1055/s-0036-1590804.

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Two approaches to the chemoenzymatic synthesis of 2-fluorocordycepin and 2-chlorocordycepin were studied: (i) the use of 3′-deoxyadenosine (cordycepin) and 3′-deoxyinosine (3′dIno) as donors of 3-deoxy-d-ribofuranose in the transglycosylation of 2-fluoro- (2FAde) and 2-chloroadenine (2ClAde) catalyzed by the recombinant E. coli purine nucleoside phosphorylase (PNP), and (ii) the use of 2-fluoroadenosine and 3′-deoxyinosine as substrates of the cross-glycosylation and PNP as a biocatalyst. An efficient method for 3′-deoxyinosine synthesis starting from inosine was developed. However, the very p

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14

Jerome, Joseph W. "The steady boundary value problem for charged incompressible fluids: PNP/Navier–Stokes systems." Nonlinear Analysis: Theory, Methods & Applications 74, no. 18 (2011): 7486–98. http://dx.doi.org/10.1016/j.na.2011.08.003.

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15

Cheng, Wen, Li Jiang, Xuejun Quan, et al. "Ozonation process intensification of p-nitrophenol by in situ separation of hydroxyl radical scavengers and microbubbles." Water Science and Technology 80, no. 1 (2019): 25–36. http://dx.doi.org/10.2166/wst.2019.227.

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Abstract The ozonation efficiency for removal of recalcitrant organic pollutants in alkaline wastewater is always low because of the presence of some hydroxyl radical scavengers. To solve this problem, the O3/Ca(OH)2 system was put forward, and p-nitrophenol (PNP) was chosen to explore the mechanism of this system. The effects of key operational parameters were studied respectively; the Ca(OH)2 dosage 3 g/L, ozone inlet flow rate 3.5 L/min, ozone concentration 65 mg/L, reactor pressure 0.25 MPa, and temperature 25 °C were obtained as the optimal operating conditions. After 60 min treatment, th

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16

FABRIZIO, JONATHAN, and JEAN DEVARS. "AN ANALYTICAL SOLUTION TO THE PERSPECTIVE-N-POINT PROBLEM FOR COMMON PLANAR CAMERA AND FOR CATADIOPTRIC SENSOR." International Journal of Image and Graphics 08, no. 01 (2008): 135–55. http://dx.doi.org/10.1142/s0219467808003015.

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The Perspective-N-Point problem (PNP) is a notable problem in computer vision. It consists of given N points known in an object coordinate space and their projection onto the image, estimating the distance between the video camera and the set of points. By the use of an unusual formulation, we propose a method to get a strictly analytical solution based on the resolution of linear systems. This solution can be computed instantly and is well adapted to real time computer vision applications. Our approach is general enough to work with a nonlinear sensor like a catadioptric panoramic sensor. To

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Poma, Anna, Giulia Vecchiotti, Sabrina Colafarina, et al. "In Vitro Genotoxicity of Polystyrene Nanoparticles on the Human Fibroblast Hs27 Cell Line." Nanomaterials 9, no. 9 (2019): 1299. http://dx.doi.org/10.3390/nano9091299.

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Several studies have provided information on environmental nanoplastic particles/debris, but the in vitro cyto-genotoxicity is still insufficiently characterized. The aim of this study is to analyze the effects of polystyrene nanoparticles (PNPs) in the Hs27 cell line. The viability of Hs27 cells was determined following exposure at different time windows and PNP concentrations. The genotoxic effects of the PNPs were evaluated by the cytokinesis-block micronucleus (CBMN) assay after exposure to PNPs. We performed ROS analysis on HS27 cells to detect reactive oxygen species at different times a

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18

Gorliczay, Edit, Imre Boczonádi, Nikolett Éva Kiss, et al. "Microbiological Effectivity Evaluation of New Poultry Farming Organic Waste Recycling." Agriculture 11, no. 7 (2021): 683. http://dx.doi.org/10.3390/agriculture11070683.

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Due to the intensification of the poultry sector, poultry manure is being produced in increasing quantities, and its on-site management is becoming a critical problem. Animal health problems can be solved by stricter the veterinary and environmental standards. The off-site coupled industrial chicken manure recycling technology (Hosoya compost tea) fundamentally affects the agricultural value of new organic-based products. Due to the limited information available on manure recycling technology-related microbiological changes, this was examined in this study. A pot experiment with a pepper test

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19

Tieleman, D. Peter, Phil C. Biggin, Graham R. Smith, and Mark S. P. Sansom. "Simulation approaches to ion channel structure–function relationships." Quarterly Reviews of Biophysics 34, no. 4 (2001): 473–561. http://dx.doi.org/10.1017/s0033583501003729.

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1. Introduction 4751.1 Ion channels 4751.1.1 Gramicidin 4761.1.2 Helix bundle channels 4771.1.3 K channels 4801.1.4 Porins 4831.1.5 Nicotinic acetylcholine receptor 4831.1.6 Physiological properties 4831.2 Simulations 4841.2.1 Atomistic versus mean-field simulations 4842. Atomistic simulations 4852.1 Modelling of ion-interaction parameters 4852.1.1 Interatomic distances and the problem of ionic radii 4862.1.2 Solvation energy 4872.1.3 Hydration shells and coordination numbers 4892.1.4 Parameters in common use and transferability 4912.1.5 Summary 4912.2 Water in pores versus bulk 4912.2.1 Simpl

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20

Rozhdestvenskaya, К. N. "Temporal analysis of a control system in a data processing network." Information and Control Systems, no. 1 (February 19, 2019): 32–39. http://dx.doi.org/10.31799/1684-8853-2019-1-32-39.

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Introduction:A control system for a data processing network interacts with the network by sending commands and receiving responses. Such a control system is responsible for the network viability, and therefore should be analyzed, in particular, in terms of behavior over time, without exhaustive search for possible control options.Purpose:Studying and analyzing the behavior of a control system in a data processing network using mathematical modeling based on finite automata theory, and performing computer simulation of the obtained theoretical positions.Results:A finite state machine is constru

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21

Chen, Yi Feng, Zhi Jun Bai, Chun Ping Yin, and Qi Lin. "Study on Measurement with Monocular Vision for Posture of Moving Objects Suspended." Advanced Materials Research 694-697 (May 2013): 1884–88. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.1884.

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An independent hardware system based on monocular vision has been built to measure the posture of moving objects suspended. The infrared light source and infrared filter were used to reduce image noise and interference. The six feature points distributing on the different surfaces of the object suspended were determined by PnP problem theory. According to the perspective projection constraints of the 3D coordinates and image coordinates, three posture angles were calculated as the object suspended moved. A verification test has been carried out at the three-axis-turntable to verify the static

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22

Hishida, T., J. Yoshida, M. Nishimura, Y. Nishiwaki, and K. Nagai. "Problems in the current diagnostic standards of clinical N1 non-small cell lung cancer." Thorax 63, no. 6 (2007): 526–31. http://dx.doi.org/10.1136/thx.2006.062760.

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Background:Although clinical N1 (cN1) non-small cell lung cancer (NSCLC) is considered to be locoregional, the postoperative outcome is disappointing, with a 5 year survival of less than 50%. One possible reason may be that cN1disease diagnosed by current standard imaging modalities often contains unexpected N2 disease. This study was conducted to evaluate the surgical and pathological results of patients with cN1 NSCLC.Methods:Among 1782 patients with NSCLC who underwent intended curative resection from 1993 to 2003, 143 patients were identified as having cN1 disease and were enrolled in this

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23

Ghosal, Sandip, and Zhen Chen. "A nonlinear equation for ionic diffusion in a strong binary electrolyte." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 466, no. 2119 (2010): 2145–54. http://dx.doi.org/10.1098/rspa.2010.0028.

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The problem of the one-dimensional electro-diffusion of ions in a strong binary electrolyte is considered. The mathematical description, known as the Poisson–Nernst–Planck (PNP) system, consists of a diffusion equation for each species augmented by transport owing to a self-consistent electrostatic field determined by the Poisson equation. This description is also relevant to other important problems in physics, such as electron and hole diffusion across semiconductor junctions and the diffusion of ions in plasmas. If concentrations do not vary appreciably over distances of the order of the De

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24

Zhang, Longyu, Hao Xia, Qingjun Liu, Chunyang Wei, Dong Fu, and Yanyou Qiao. "Visual Positioning in Indoor Environments Using RGB-D Images and Improved Vector of Local Aggregated Descriptors." ISPRS International Journal of Geo-Information 10, no. 4 (2021): 195. http://dx.doi.org/10.3390/ijgi10040195.

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Positioning information has become one of the most important information for processing and displaying on smart mobile devices. In this paper, we propose a visual positioning method using RGB-D image on smart mobile devices. Firstly, the pose of each image in the training set is calculated through feature extraction and description, image registration, and pose map optimization. Then, in the image retrieval stage, the training set and the query set are clustered to generate the vector of local aggregated descriptors (VLAD) description vector. In order to overcome the problem that the descripti

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25

Frausto-Solís, Juan, Juan Paulo Sánchez-Hernández, Fanny G. Maldonado-Nava, and Juan J. González-Barbosa. "GRSA Enhanced for Protein Folding Problem in the Case of Peptides." Axioms 8, no. 4 (2019): 136. http://dx.doi.org/10.3390/axioms8040136.

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Protein folding problem (PFP) consists of determining the functional three-dimensional structure of a target protein. PFP is an optimization problem where the objective is to find the structure with the lowest Gibbs free energy. It is significant to solve PFP for use in medical and pharmaceutical applications. Hybrid simulated annealing algorithms (HSA) use a kind of simulated annealing or Monte Carlo method, and they are among the most efficient for PFP. The instances of PFP can be classified as follows: (a) Proteins with a large number of amino acids and (b) peptides with a small number of a

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26

Pertile, Marco, Sebastiano Chiodini, Riccardo Giubilato, et al. "Metrological Characterization of a Vision-Based System for Relative Pose Measurements with Fiducial Marker Mapping for Spacecrafts." Robotics 7, no. 3 (2018): 43. http://dx.doi.org/10.3390/robotics7030043.

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An improved approach for the measurement of the relative pose between a target and a chaser spacecraft is presented. The selected method is based on a single camera, which can be mounted on the chaser, and a plurality of fiducial markers, which can be mounted on the external surface of the target. The measurement procedure comprises of a closed-form solution of the Perspective from n Points (PnP) problem, a RANdom SAmple Consensus (RANSAC) procedure, a non-linear local optimization and a global Bundle Adjustment refinement of the marker map and relative poses. A metrological characterization o

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27

Vecchiotti, Giulia, Sabrina Colafarina, Massimo Aloisi, Osvaldo Zarivi, Piero Di Carlo, and Anna Poma. "Genotoxicity and oxidative stress induction by polystyrene nanoparticles in the colorectal cancer cell line HCT116." PLOS ONE 16, no. 7 (2021): e0255120. http://dx.doi.org/10.1371/journal.pone.0255120.

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The potential risks of environmental nanoparticles (NPs), in particular Polystyrene Nanoparticles (PNPs), is an emerging problem; specifically, the interaction of PNPs with intestinal cells has not been characterized so far. The mechanism by which polystyrene particles are transferred to humans has not yet been clarified, whether directly through ingestion from contaminated food. We evaluated the interaction between PNPs and colorectal adenocarcinoma cells (HCT116). Cells were exposed to different concentrations of PNPs, metabolic activity and the consequent cytotoxic potential were assessed t

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28

Xiong, Feng, Chengju Liu, and Qijun Chen. "Region Pixel Voting Network (RPVNet) for 6D Pose Estimation from Monocular Image." Applied Sciences 11, no. 2 (2021): 743. http://dx.doi.org/10.3390/app11020743.

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Recent studies have shown that deep learning achieves superior results in the task of estimating 6D-pose of target object from an image. End-to-end techniques use deep networks to predict pose directly from image, avoiding the limitations of handcraft features, but rely on training dataset to deal with occlusion. Two-stage algorithms alleviate this problem by finding keypoints in the image and then solving the Perspective-n-Point (PnP) problem to avoid directly fitting the transformation from image space to 6D-pose space. This paper proposes a novel two-stage method using only local features f

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29

D’Oca, Simona, Annarita Ferrante, Clara Ferrer, et al. "Technical, Financial, and Social Barriers and Challenges in Deep Building Renovation: Integration of Lessons Learned from the H2020 Cluster Projects." Buildings 8, no. 12 (2018): 174. http://dx.doi.org/10.3390/buildings8120174.

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With a low rate of new building construction and an insufficient rate of existing building renovation, there is the need to step up the pace of building renovation with ambitious performance targets to achieve European Union (EU) climate change policies for 2050. However, innovative technologies, including, but not limiting to, plug and play (PnP) prefabricated facades, information and communications technology (ICT)-support for building management systems (BMS), the integration of renewable energy systems (RES), building information model (BIM) and building performance simulation models (BPSM

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30

Chen, Zihao, and Jie Jiang. "Crater Detection and Recognition Method for Pose Estimation." Remote Sensing 13, no. 17 (2021): 3467. http://dx.doi.org/10.3390/rs13173467.

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A crater detection and recognition algorithm is the key to pose estimation based on craters. Due to the changing viewing angle and varying height, the crater is imaged as an ellipse and the scale changes in the landing camera. In this paper, a robust and efficient crater detection and recognition algorithm for fusing the information of sequence images for pose estimation is designed, which can be used in both flying in orbit around and landing phases. Our method consists of two stages: stage 1 for crater detection and stage 2 for crater recognition. In stage 1, a single-stage network with dens

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31

Wu, Min, Ru Chuan Wang, Jing Li, and Zhi Jie Han. "A Novel P2P Business Traffic Prediction Algorithm." Key Engineering Materials 467-469 (February 2011): 1339–44. http://dx.doi.org/10.4028/www.scientific.net/kem.467-469.1339.

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The increasing P2P network traffic on the Internet has leaded to the problem of network congestion. In the consequence of the diversification of the P2P business and protocol, research on the management of P2P traffic has many problems to resolve. Prediction of the P2P traffic is the kernel problem in the P2P traffic management. Based on the existed P2P traffic characters, this paper structures a P2P traffic model, gives a traffic prediction algorithm bases on wavelet-analysis, and proves the accuracy of the algorithm. Simulation experiment figures that the algorithm has a high prediction prec

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32

Dunham, Ken. "The Problem with P2P." EDPACS 33, no. 11 (2006): 9–13. http://dx.doi.org/10.1201/1079.07366981/45977.33.11.20060501/93008.2.

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33

Dunham, Ken. "The Problem with P2P." Information Systems Security 15, no. 2 (2006): 5–8. http://dx.doi.org/10.1201/1086.1065898x/46051.15.2.20060501/93403.2.

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34

Fan, Sheng-Kai, Shen-Li Chen, Po-Lin Lin, and Hung-Wei Chen. "Layout Strengthening the ESD Performance for High-Voltage N-Channel Lateral Diffused MOSFETs." Electronics 9, no. 5 (2020): 718. http://dx.doi.org/10.3390/electronics9050718.

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An electrostatic discharge (ESD) event can negatively affect the reliability of integrated circuits. Therefore, improving on ESD immunity in high-voltage (HV) n-channel (n) lateral diffused metal–oxide–semiconductor field-effect transistor (HV nLDMOS) components through drain-side layout engineering was studied. This involved adjusting the operating voltage, improving the non-uniform turned-on phenomenon, and examining the effects of embedded-device structures on ESD. All proposed architectures for improving ESD immunity in this work were measured and evaluated using a transmission-line pulse

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35

Sánchez-Hernández, Juan P., Juan Frausto-Solís, Juan J. González-Barbosa, Diego A. Soto-Monterrubio, Fanny G. Maldonado-Nava, and Guadalupe Castilla-Valdez. "A Peptides Prediction Methodology for Tertiary Structure Based on Simulated Annealing." Mathematical and Computational Applications 26, no. 2 (2021): 39. http://dx.doi.org/10.3390/mca26020039.

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The Protein Folding Problem (PFP) is a big challenge that has remained unsolved for more than fifty years. This problem consists of obtaining the tertiary structure or Native Structure (NS) of a protein knowing its amino acid sequence. The computational methodologies applied to this problem are classified into two groups, known as Template-Based Modeling (TBM) and ab initio models. In the latter methodology, only information from the primary structure of the target protein is used. In the literature, Hybrid Simulated Annealing (HSA) algorithms are among the best ab initio algorithms for PFP; G

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Lai, Kuan-Chou, Chao-Chin Wu, and Shih-Jie Lin. "Exploring Job Migration Technique for P2P Grid Systems." International Journal of Grid and High Performance Computing 1, no. 4 (2009): 16–25. http://dx.doi.org/10.4018/jghpc.2009070802.

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P2P Grids can potentially solve large-scale scientific problems by using geographically distributed heterogeneous resources. However, a number of major technical obstacles must be overcome before this potential can be realized. One problem critical to the effective utilization of P2P Grids is the efficient scheduling of jobs. This study addresses the above-mentioned problem by describing and evaluating a P2P communication model, a P2P resource monitoring system and a job migration mechanism. In this study, the authors propose a P2P communication mechanism, which is built to deliver various inf

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37

Gerding, M., T. Musch, and B. Schiek. "Generation of short electrical pulses based on bipolar transistorsny." Advances in Radio Science 2 (May 27, 2005): 7–12. http://dx.doi.org/10.5194/ars-2-7-2004.

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Abstract. A system for the generation of short electrical pulses based on the minority carrier charge storage and the step recovery effect of bipolar transistors is presented. Electrical pulses of about 90 ps up to 800 ps duration are generated with a maximum amplitude of approximately 7V at 50Ω. The bipolar transistor is driven into saturation and the base-collector and base-emitter junctions become forward biased. The resulting fast switch-off edge of the transistor’s output signal is the basis for the pulse generation. The fast switching of the transistor occurs as a result of the minority

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38

Hanisch, Charlotte, Inez Freund-Braier, Christopher Hautmann, et al. "Detecting Effects of the Indicated Prevention Programme for Externalizing Problem Behaviour (PEP) on Child Symptoms, Parenting, and Parental Quality of Life in a Randomized Controlled Trial." Behavioural and Cognitive Psychotherapy 38, no. 1 (2009): 95–112. http://dx.doi.org/10.1017/s1352465809990440.

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Background: Behavioural parent training is effective in improving child disruptive behavioural problems in preschool children by increasing parenting competence. The indicated Prevention Programme for Externalizing Problem behaviour (PEP) is a group training programme for parents and kindergarten teachers of children aged 3–6 years with externalizing behavioural problems. Aims: To evaluate the effects of PEP on child problem behaviour, parenting practices, parent-child interactions, and parental quality of life. Method: Parents and kindergarten teachers of 155 children were randomly assigned t

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Li, Bin, Chen Lei Cao, Jian Yi Liu, and Jin Xia Wei. "A New Delegation Provable Data Possession in Public Cloud Storage." Applied Mechanics and Materials 644-650 (September 2014): 2239–44. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.2239.

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Though Cloud storage has developed rapidly in recent years, there still exist some problems obviously. Provable Data Possession (PDP) is proposed to solve the problem of data integrity verification at untrusted cloud stores. This study built a new delegation Provable Data Possession (delegation-PDP), which solves problem when the client has no ability to check its remote data. We study the delegation-PDP and use proxy re-encryption to design it. Then we use the improved Elgamal-based algorithm to implement the scheme. Through security analysis and performance analysis, our protocol is provable

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Trushin, A. S., A. I. Seroshtanov, A. A. Sheptukha, I. Ye Bugakov, O. O. Didenko, and Ye O. Bausov. "A COMPREHENSIVE APPROACH TO THE TREATMENT OF PURULENT-NECROTIC PROCESSES IN THE DEFEAT OF PELVIC FIBER IN PATIENTS WITH DIABETES MELLITUS." Kharkiv Surgical School, no. 3 (March 20, 2020): 50–53. http://dx.doi.org/10.37699/2308-7005.3.2020.10.

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Summary. The purpose of the study. Optimization of the treatment of PNP with the defeat of the PF in DM. Materials and methods. Results of treatment of 138 patients with PNP on the background of DM using ozone therapy, ultrasonic cavitation and laser irradiation of the wound. Results and discussion. Attention is drawn to the problems of the course of the disease and the complexity of complex therapy in the initial background pathology. Conclusions. The operational principle of “step-by-step” is justified in the case of PNP against the background of DM. Ozone therapy sup

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HALAVA, VESA, TERO HARJU, and MIKA HIRVENSALO. "UNDECIDABILITY BOUNDS FOR INTEGER MATRICES USING CLAUS INSTANCES." International Journal of Foundations of Computer Science 18, no. 05 (2007): 931–48. http://dx.doi.org/10.1142/s0129054107005066.

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There are several known undecidable problems for 3 × 3 integer matrices the proof of which use a reduction from the Post Correspondence Problem (PCP). We establish new lower bounds in the number of matrices for the mortality, zero in the left upper corner, vector reachability, matrix reachability, scalar reachability and freeness problems. Also, we give a short proof for a strengthened result due to Bell and Potapov stating that the membership problem is undecidable for finitely generated matrix semigroups R ⊆ ℤ 4×4 whether or not kI4 ∈ R for any given |k| > 1. These bounds are obtained by

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Guo, Yang. "Closed-Form Solution to the Noncoplanar P4P Problem for Uncalibrated Camera." Applied Mechanics and Materials 145 (December 2011): 6–10. http://dx.doi.org/10.4028/www.scientific.net/amm.145.6.

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This paper presents a closed-form solution to determination of the position and orientation of a perspective camera with two unknown effective focal lengths for the noncoplanar perspective four point (P4P) problem. Given four noncoplanar 3D points and their correspondences in image coordinate, we convert perspective transformation to affine transformation, and formulate the problem using invariance to 3D affine transformation and arrive to a closed-form solution. We show how the noncoplanar P4P problem is cast into the problem of solving an eighth degree polynomial equation in one unknown. Thi

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Meng, Chengzhe, and Weiwei Xu. "ScPnP: A non-iterative scale compensation solution for PnP problems." Image and Vision Computing 106 (February 2021): 104085. http://dx.doi.org/10.1016/j.imavis.2020.104085.

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Contardo, Claudio. "Decremental Clustering for the Solution of p-Dispersion Problems to Proven Optimality." INFORMS Journal on Optimization 2, no. 2 (2020): 134–44. http://dx.doi.org/10.1287/ijoo.2019.0027.

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Given n points, a symmetric dissimilarity matrix D of dimensions n × n, and an integer p ? 2, the p-dispersion problem (pDP) consists of selecting a subset of exactly p points in such a way that the minimum dissimilarity between any pair of selected points is maximum. The pDP is [Formula: see text] when p is an input of the problem. We propose a decremental clustering method to reduce the problem to the solution of a series of smaller pDPs until reaching proven optimality. A k-means algorithm is used to construct and refine the clusterings along the algorithm’s execution. The proposed method c

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Dudgeon, Steve, Janet E. Kübler, John A. West, Mitsunobu Kamiya, and Stacy A. Krueger-Hadfield. "Asexuality and the cryptic species problem." Perspectives in Phycology 4, no. 1 (2017): 47–59. http://dx.doi.org/10.1127/pip/2017/0070.

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London, Jason B., R. T. Fernandez, Roy E. Young, and Jerry D. Christenbury. "Media Temperature in Above-ground and In-ground Pot-in-Pot Container Systems." HortScience 33, no. 3 (1998): 512a—512. http://dx.doi.org/10.21273/hortsci.33.3.512a.

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In-ground, pot-in-pot (PNP) systems control container blow-over and buffer media temperatures. At least two nursery container manufacturers have recently introduced above-ground, PNP systems to reduce installation cost, overcome land use inflexibility, and eliminate root growth into drainage systems. Above-ground, PNP systems eliminate some of the problems associated with an in-ground PNP system, but little is known about how it compares with in-ground PNP's attributes; specifically media temperaturee buffering. Fifteen-gallon containers of Ligustrum japonicum var. `Repandens' were installed i

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Liu, Xi, Jun Liu, and Chun Yan Zhu. "P2P Incentive Mechanism Based on Static Game of Incomplete Information." Applied Mechanics and Materials 138-139 (November 2011): 1234–38. http://dx.doi.org/10.4028/www.scientific.net/amm.138-139.1234.

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P2P network is autonomous of sharing file quickly and easily. In recent years, a large number of free-riding nodes and malicious nodes emerge in P2P network, which can’t provide services and have malicious damage to the network system, the result is significant declines of system performance and user satisfaction. In order to solve the problems, a P2P incentive mechanism based on static game of incomplete information is proposed in this paper. The new proposed mechanism has been analyzed and simulated with a series of tests. Experimental results show that the proposed P2P incentive mechanism c

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Kucharzak, Michal, Adam Siwek, and Krzysztof Walkowiak. "Comparison of Evolutionary Algorithm and Heuristics for Flow Optimization in P2P Systems." International Journal of Electronics and Telecommunications 56, no. 2 (2010): 145–52. http://dx.doi.org/10.2478/v10177-010-0019-y.

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Comparison of Evolutionary Algorithm and Heuristics for Flow Optimization in P2P SystemsNowadays, many Internet users make use of Peer-to-Peer (P2P) systems to download electronic content including music, movies, software, etc. Growing popularity in P2P based protocol implementations for file sharing purposes caused that the P2P traffic exceeds Web traffic and in accordance with to many statistics, P2P systems produce a more than 50% of the whole Internet traffic. Therefore, P2P systems provide remarkable income for Internet Service Providers (ISP). However, at the same time P2P systems genera

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Jabłońska, Renata, Marta Gralik, Agnieszka Królikowska, Beata Haor, and Anna Antczak. "The Problem of Back Pain Among Nurses of Neurology and Neurosurgery Wards." Journal of Neurological and Neurosurgical Nursing 5, no. 3 (2016): 84–91. http://dx.doi.org/10.15225/pnn.2016.5.3.1.

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Hautmann, Christopher, Herbert Hoijtink, Ilka Eichelberger, et al. "One-Year Follow-up of a Parent Management Training for Children with Externalizing Behaviour Problems in the Real World." Behavioural and Cognitive Psychotherapy 37, no. 4 (2009): 379–96. http://dx.doi.org/10.1017/s135246580999021x.

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Background: The long-term effectiveness of parent training for children with externalizing behaviour problems under routine care within the German health care system is unclear. We report the 1-year follow-up results of the parent training component of the Prevention Program for Externalizing Problem Behaviour (PEP) for 270 children aged 3–10 years with externalizing behaviour problems. Method: Outcome measures included child behaviour problems (externalizing behaviour problems, Attention-Deficit/Hyperactivity Disorder symptoms and Oppositional Defiant Disorder symptoms) and parenting (self ef

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