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In this study, we consider the estimator based on percentiles for log-logistic distribution similar to the study of [6] and we also graph breakdown plots of the estimators that are considered below to have an opinion about robustness properties. The estimator based on percentiles is explicit functions of sample percentiles, thus, easy to compute and do not involve any iterative computational complexities...
In this work the tangent approach is valid on example of overlapping voltammetric peaks of Cd (II) and Tl (I) at their different concentration in a mixture. Height of the frame plotted by inflectional tangents to the inflection points on peak branches is used as a peak maximum for calibration curve plotting. It is founded that systematic errors are not significant for the measurement of Tl (I) peak...
An ultra-wideband (UWB) spatial filter concept is proposed for one-dimensional time-of-arrival (TOA) localization in a tunnel environment. The spatial filter exploits the fact that electromagnetic waves travel as modes in a tunnel and that these modes can be filtered using a sparse array of antennas. It is shown that the spatial filter delivers centimeter ranging accuracy at moderate to high signal-to-noise...
This paper discusses a dynamic nonprehensile manipulation of a thin flexible object where the object rotates on a plate. We have found that a thin flexible object shows bipedal-gaited motions when rotating on the vibrating plate and that the maximal angular velocity of the object is achieved by an appropriate plate motion with respect to the object's physical parameters. Based on such an object's...
According to a 3-PPSR flexible parallel manipulator with specific structure, through theoretical calculation and finite element analysis of the whole robot, stiffness analysis and modal analysis were made and it was obtained the inherent frequency and vibration mode, which can effectively avoid the occurrence of resonance.
In order to establish the perceptual function model of products, we use image semantics words to express the perceptual capabilities of CNC machine tools in the study of their image modeling design. Consider the complexity of the image information, users tend to use a relatively vague image word to express their expectations of the product, however, due to the ambiguity and uncertainty of the image...
Using image recognition, 20 varieties of peanut are collected through scanner. The image of 100 peanut seeds' positive and two sides of each variety are collected; each image's characteristics of shape, color and texture totaling up to 50 are obtained. A cluster analysis model based on these features and another cluster analysis model with PCA data optimizing is built. For further step, we have got...
It is important to build entity modeling which it exists in the outdoor environment with human activities in the nature increasingly. Outdoor entity can be divided into structured, semi-structured and unstructured. This paper uses expanding 2.5D method to model semi-structured entity which it is very representative. The semi-structured entity can be divided into simple standard sample, complex standard...
Estimation of wind-speed statistics is essential for an efficient assessment of wind power generation, and thus for any rational decision upon the installation and operation of a wind farm. Most existing methods for the above estimation are based upon the popular Weibull distribution. However, a few recent papers have pointed out, based upon field data analysis, some drawback of the above model. Such...
A good model of object shape is essential in applications such as segmentation, object detection, inpainting and graphics. For example, when performing segmentation, local constraints on the shape can help where the object boundary is noisy or unclear, and global constraints can resolve ambiguities where background clutter looks similar to part of the object. In general, the stronger the model of...
To improve the disassembly and recycling efficiency of waste electronic products, the research on active disassembly of product with shape memory materials has attracted people's attention. Cleaner Electronic Research of Brunel University's Joseph Chiodo, etc, conducted a series of active disassembly experimental and method studies for ADSM (Active disassembly using smart materials, ADSM) and applied...
In order to develop a new extending edge method of potential field with reasonable and practical, this paper develops a difference method of extending edge based on the mean value theorem and the maximum value and minimum value theorem. This paper, through designing theoretical model and calculating theoretical data, processes the actual data by difference method of extending edge, analyses the differences...
Applications such as robotics and augmented reality (AR) require 3D tracking of rigid objects. In robotic applications, the availability of accurate and robust pose estimates increases reliability, whereas in AR scenarios reliable pose estimates decrease jitter. Pure vision sensor based 3D trackers require either manual initializations of pose or off-line training stages. On the other hand, trackers...
This paper provides a systematical rate-distortion (R-D) analysis and modeling of generalized Gaussian distribution (GGD) under the dead-zone plus uniform threshold scalar quantization (DZ+UTSQ) and nearly-uniform reconstruction quantization (NURQ). In R-D analysis, we clearly explain the property of GGD source under efficient DZ+UTSQ/NURQ. On this basis, in R-D modeling, the heuristic D-R model is...
In this paper we have analyzed multiple user interference based Standard Gaussian Approximation (SGA) model and packets collision (PC) model in IR-UWB wireless communication system., The paper also compares the system performance between the models based Gaussian pulse UWB and model based Hermit pulse UWB. Here we have considered the TH-PAM and TH-PPM based Impulse radio systems for evaluating MUI.
Node locations and distances are of profound importance for the operation of any communication networks. With the fundamental inter-node distance captured in a random network, one can build probabilistic models for characterizing network performance metrics such as k-th nearest neighbor and traveling distances, as well as transmission power and path loss in wireless networks. For the first time in...
In this paper, we present an auxiliary-function-based independent vector analysis (AuxIVA) based on the Generalized super Gaussian source model or Gaussian source model with time-varying variance. AuxIVA is a convergence-guaranteed iterative algorithm for independent vector analysis (IVA) with a spherical and super Gaussian source model, and the source model can be characterized by a weighting function...
A great disadvantage of switched reluctance machines is the heavy noise emitation, caused by the radial forces in the airgap, which excite the structure to vibrate. Especially the stator vibrations produce heavy noise, when the frequencies of the excited forces correspond to the eigenfrequencies of the stator. Every structure has its characterizing eigenfrequency and the corresponding shape of deformation,...
Up to one third of the electricity supplied to a data center is required for the operation of the storage subsystem. A typical data-center workload, characterized by short idle periods, prevents traditional disk power management (DPM) from saving energy. This paper starts with an analysis of DPM's traditional timer-based disk spin-down policy. Next, we examine how a multispeed disk adapts DPM to datacenter...
Reliability growth methodology is a valuable tool to measure product reliability improvement either through planned, dedicated testing or the gradual upgrade and improvement of the fielded product. The methodology is well thought of with appropriate process mathematical assumptions so that when applied, it provides appropriate and justifiable information and tracking of reliability improvement. The...
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