scholarly journals STEREOLOGY AND 3D MICROSCOPY: USEFUL ALTERNATIVES OR COMPETITORS IN THE QUANTITATIVE ANALYSIS OF MICROSTRUCTURES?

2011 ◽  
Vol 23 (2) ◽  
pp. 73 ◽  
Author(s):  
Hans Eckart Exner
Keyword(s):  
Quantitative Analysis ◽  
Correlation Analysis ◽  
Rapid Development ◽  
3D Images ◽  
Practical Applications ◽  
3D Microscopy ◽  
3D Geometry ◽  
Basic Equations ◽  
Data Reductions ◽  
Description Field

With the rapid development of modern techniques for producing 3D images, the assessment of 3D geometry from 2D sections of projections by stereological methods seems to become more and more redundant. The paper aims to show the limits of the two approaches and to outline their relative advantages in practical applications. It is concluded that, for a large variety of applications, classical stereological methods are the most effective way to characterize 3D geometry of irregular microstructures. The basic equations for useful global (field) parameters are summarized and their assessment by manual techniques is indicated. For other types of applications asking for complex parameters like shape, arrangement or size distribution, preference should be given to direct 3D measurements. Parameters obtained by 2D analysis of sections or projections are useful for comparison purposes, for empirical correlation analysis or for fingerprinting-type description. Field and feature parameters and the problems of data reductions are discussed.

Study of Canonical Correlation Analysis Algorithm Based on Kernel Function

2013 ◽  
Vol 791-793 ◽  
pp. 1191-1194
Author(s):  
Qiong Guan ◽  
Jian Bin Fang
Keyword(s):  
Correlation Analysis ◽  
Canonical Correlation Analysis ◽  
Kernel Function ◽  
Computer Technology ◽  
Canonical Correlation ◽  
Rapid Development ◽  
Nonlinear Relationship ◽  
Analysis Algorithm ◽  
Practical Applications ◽  
Software Technology

With the rapid development of computer technology and software technology, the application of linear canonical correlation analysis is more and more widely. But in practical applications, variables are often potential nonlinear relations. Therefore, it is necessary to study the nonlinear canonical correlation analysis algorithm, reveal the nonlinear relationship between variables of potential.

Recent Patents on the Angular Contact Ball Bearing of High-Speed Motorized Spindle

2020 ◽  
Vol 13 ◽  
Author(s):  
Yudong Bao ◽  
Linkai Wu ◽  
Yanling Zhao ◽  
Chengyi Pan
Keyword(s):  
High Speed ◽  
Ball Bearing ◽  
Rapid Development ◽  
Ceramic Materials ◽  
Development Trend ◽  
Numerical Control ◽  
Angular Contact Ball Bearing ◽  
Practical Applications ◽  
High Speed Cutting ◽  
Advantages And Disadvantages

Background:: Angular contact ball bearings are the most popular bearing type used in the high speed spindle for machining centers, The performance of the bearing directly affects the machining efficiency of the machine tool, Obtaining a higher value is the direction of its research and development. Objective:: By analyzing the research achievements and patents of electric spindle angular contact bearings, summarizing the development trend provides a reference for the development of electric spindle bearings. Methods:: Through the analysis of the relevant technology of the electric spindle angular contact ball bearing, the advantages and disadvantages of the angular contact ball bearing are introduced, and the research results are combined with the patent analysis. Results:: With the rapid development of high-speed cutting and numerical control technology and the needs of practical applications, the spindle requires higher and higher speeds for bearings. In order to meet the requirements of use, it is necessary to improve the bearing performance by optimizing the structure size and improving the lubrication conditions. Meanwhile, reasonable processing and assembly methods will also have a beneficial effect on bearing performance. Conclusion:: With the continuous deepening of bearing technology research and the use of new structures and ceramic materials has made the bearing's limit speed repeatedly reach new highs. The future development trend of high-speed bearings for electric spindles is environmental protection, intelligence, high speed, high precision and long life.

scholarly journals Chiral Recognition for Chromatography and Membrane-Based Separations: Recent Developments and Future Prospects

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 1145
Author(s):  
Yuan Zhao ◽  
Xuecheng Zhu ◽  
Wei Jiang ◽  
Huilin Liu ◽  
Baoguo Sun
Keyword(s):  
Rapid Development ◽  
Chiral Molecules ◽  
Future Prospects ◽  
Chiral Drugs ◽  
Recognition Mechanism ◽  
Practical Applications ◽  
Food Industries ◽  
Global Industry ◽  
Endocrine Disrupting ◽  
Recent Developments

With the rapid development of global industry and increasingly frequent product circulation, the separation and detection of chiral drugs/pesticides are becoming increasingly important. The chiral nature of substances can result in harm to the human body, and the selective endocrine-disrupting effect of drug enantiomers is caused by differential enantiospecific binding to receptors. This review is devoted to the specific recognition and resolution of chiral molecules by chromatography and membrane-based enantioseparation techniques. Chromatographic enantiomer separations with chiral stationary phase (CSP)-based columns and membrane-based enantiomer filtration are detailed. In addition, the unique properties of these chiral resolution methods have been summarized for practical applications in the chemistry, environment, biology, medicine, and food industries. We further discussed the recognition mechanism in analytical enantioseparations and analyzed recent developments and future prospects of chromatographic and membrane-based enantioseparations.

scholarly journals PartSeg: a tool for quantitative feature extraction from 3D microscopy images for dummies

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Grzegorz Bokota ◽  
Jacek Sroka ◽  
Subhadip Basu ◽  
Nirmal Das ◽  
Pawel Trzaskoma ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Cell Nucleus ◽  
Ad Hoc ◽  
Multiple Use ◽  
Entry Barrier ◽  
Multi Scale ◽  
3D Microscopy ◽  
Nuclear Structures ◽  
Bulk Processing ◽  
Microscopy Images

Abstract Background Bioimaging techniques offer a robust tool for studying molecular pathways and morphological phenotypes of cell populations subjected to various conditions. As modern high-resolution 3D microscopy provides access to an ever-increasing amount of high-quality images, there arises a need for their analysis in an automated, unbiased, and simple way. Segmentation of structures within the cell nucleus, which is the focus of this paper, presents a new layer of complexity in the form of dense packing and significant signal overlap. At the same time, the available segmentation tools provide a steep learning curve for new users with a limited technical background. This is especially apparent in the bulk processing of image sets, which requires the use of some form of programming notation. Results In this paper, we present PartSeg, a tool for segmentation and reconstruction of 3D microscopy images, optimised for the study of the cell nucleus. PartSeg integrates refined versions of several state-of-the-art algorithms, including a new multi-scale approach for segmentation and quantitative analysis of 3D microscopy images. The features and user-friendly interface of PartSeg were carefully planned with biologists in mind, based on analysis of multiple use cases and difficulties encountered with other tools, to offer an ergonomic interface with a minimal entry barrier. Bulk processing in an ad-hoc manner is possible without the need for programmer support. As the size of datasets of interest grows, such bulk processing solutions become essential for proper statistical analysis of results. Advanced users can use PartSeg components as a library within Python data processing and visualisation pipelines, for example within Jupyter notebooks. The tool is extensible so that new functionality and algorithms can be added by the use of plugins. For biologists, the utility of PartSeg is presented in several scenarios, showing the quantitative analysis of nuclear structures. Conclusions In this paper, we have presented PartSeg which is a tool for precise and verifiable segmentation and reconstruction of 3D microscopy images. PartSeg is optimised for cell nucleus analysis and offers multi-scale segmentation algorithms best-suited for this task. PartSeg can also be used for the bulk processing of multiple images and its components can be reused in other systems or computational experiments.

scholarly journals An Identity-Based Blind Signature Scheme Using Lattice with Provable Security

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Quanrun Li ◽  
Chingfang Hsu ◽  
Debiao He ◽  
Kim-Kwang Raymond Choo ◽  
Peng Gong
Keyword(s):  
Quantum Computer ◽  
Rapid Development ◽  
Random Oracle Model ◽  
Random Oracle ◽  
Mean Value ◽  
Blind Signature ◽  
Signature Scheme ◽  
Practical Applications ◽  
Universal Quantum ◽  
Identity Based

With the rapid development of quantum computing and quantum information technology, the universal quantum computer will emerge in the near decades with a very high probability and it could break most of the current public key cryptosystems totally. Due to the ability of withstanding the universal quantum computer’s attack, the lattice-based cryptosystems have received lots of attention from both industry and academia. In this paper, we propose an identity-based blind signature scheme using lattice. We also prove that the proposed scheme is provably secure in the random oracle model. The performance analysis shows that the proposed scheme has less mean value of sampling times and smaller signature size than previous schemes. Thus, the proposed scheme is more suitable for practical applications.

scholarly journals Negligible Voltage Hysteresis with Strong Anionic Redox in Conventional Battery Electrode

2020 ◽  
Author(s):  
Kehua Dai ◽  
Jing Mao ◽  
Zengqing Zhuo ◽  
Guo Ai ◽  
Wenfeng Mao ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Redox Reactions ◽  
Coulombic Efficiency ◽  
Redox Systems ◽  
Redox Mechanism ◽  
Practical Applications ◽  
Battery Electrode ◽  
Voltage Hysteresis ◽  
First Time ◽  
Initial Coulombic Efficiency

<div>Lattice oxygen redox reactions (ORR) offers opportunities for developing highcapacity batteries, however, suffers the notoriously high voltage hysteresis and low initial coulombic efficiency, which hinder its practical applications. Particularly, ORR was widely considered inherent to these kinetic issues. In this paper, unambiguous evidence of strong and reversible ORR is found in Na<sub>2/3</sub>Ni<sub>1/3</sub>Mn<sub>2/3</sub>O<sub>2</sub>, which displays negligible voltage hysteresis (0.1 V) and high initial coulombic efficiency with a highly stable electrochemical profile. Our independent and quantitative analysis of all the Ni, Mn and O states consistently interpret the redox mechanism of Na<sub>2/3</sub>Ni<sub>1/3</sub>Mn<sub>2/3</sub>O<sub>2</sub>, which reveals, for the first time, a conventional 3d transition-metal ORR system with facile kinetics and highly stable electrochemical profile that previously found only in cationic redox systems.</div>

Pengaruh Iklan Terhadap Keputusan Pembelian Konsumen

2020 ◽  
Vol 2 (2) ◽  
pp. 233-248
Author(s):  
Abednego Stephen ◽  
◽  
Athluna Canthika ◽  
Davin Subrata ◽  
Devina Veronika ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Quantitative Analysis ◽  
Correlation Analysis ◽  
Statistical Method ◽  
Survey Data ◽  
Online Survey ◽  
Descriptive Statistics ◽  
The Other ◽  
Brand Recall ◽  
Independent Variable

Advertisement is one of the most common way to promote and create awareness of a product. However it is still uncertain to measure the effect of advertisement, especially on customer’s buying decision. The objective of this paper is to identify how much advertisement impacts on consumers buying decision. The research uses quantitative analysis by analyzing online survey data gathered from 280 respondent across Jabodetabek (Jakarta, Bogor, Depok, Tangerang, Bekasi). Statistical method such as correlation analysis, descriptive statistics, and regression analysis was used and the result from 244 valid respondents showed that the independent variable brand recall and stimulation have an impact on consumers’ buying decision while the other three variables which are necessity, pleasure, and dominance do not have an impact on consumers’ buying decision.

Distant Teaching and Learning of BTIPS: Application in Pandemic Situation

2020 ◽  
Author(s):  
Zbigniew M. Bzymek
Keyword(s):  
Problem Solving ◽  
Engineering Design ◽  
Human Life ◽  
Rapid Development ◽  
Idea Generation ◽  
Teaching Experience ◽  
The Internet ◽  
Practical Applications ◽  
Main Challenge ◽  
New Situation

Abstract The world’s technology is developing very rapidly. To anticipate the course and results of such development is a task that is very crucial for the success of many technological undertakings and expansions. Engineering design is the branch of engineering that should predict the results of that rapid development. It should equip society with the tools for directing and controlling that development. It is a complex task that faces big challenges. The main challenge comes from society advancement and from the technology development itself. If the directing and controlling are done right the development would bring many benefits to humanity and would make human life easier and more comfortable. Doing it right however requires increased knowledge of the new features of technology and more skills in its application. In the difficult pandemic situation that knowledge and skills should be even greater because the outbreak of the disease creates additional traps and dangers. These conditions have to be taken under consideration and accepted as normal. The role of engineering design is to predict what harmful elements would be coming from both technological and social sources. The real goal however would be to exceed the expectations and not only neutralize them but change them from harmful into neutral, and then from neutral into friendly and helpful. Such actions follows recommendations of BTIPS (Brief Theory of Inventive Problem Solving) and is outlined in the BTIPS’s module “Prediction”. At the same time the developing civilization brings dangers for humans that were unknown before. These are bacterial and viruses’ attacks that limit personal relations between humans, requires new ways and new elements of communications, especially in internet contacts and in distant learning procedures. The contents of these components should be accurately predicted, well-orchestrated, well designed and precisely described. Recommendations for introducing BTIPS as a tool of engineering education in new situation should be carefully proposed and illustration examples, using new communication tools, should be developed. These should be applied in engineering theoretical courses and in practical applications during the senior design course of study and in industrial practice. This should be precise, clearly anticipating difficulties, pointing possible errors and ways of avoiding them. Teaching examples of problem solving and personal ways of communications between individual students, between groups of students, as well as between students and instructors should be further discussed. The examples of design ideas and problem solutions generated by students in design courses that were described in previous works of the author and his co-workers [1] should be related to pandemic situation. To define and formulate rules of teaching BTIPS in the pandemic situation is the necessity of our times. On every step of our lives we face the challenge of preventing harms and destruction that can be done by the contemporary surrounding world. The preventing actions can be designed by following rules of BTIPS and by apply approach recommended in its modules. The proposal of utilizing BTIPS application examples using the internet as a tool of expression is described in this paper. All of these are pointed out and some recommendations and examples are called. Adding description of corrections to the engineering curriculum is necessary in the new situation. It is an intention of the author to demonstrate a fragment of practical distant lecturing by internet during the IMECE 2020 internet sessions using the internet network and distant support from UConn computer Laboratory in Storrs, CT. Some example solutions of the idea generation are quoted in this paper. The comments coming from author’s teaching experience will be given during the presentation and practical advices for students and instructors will be passed to the audience. This paper is a companion to IMECE 2017-70438 [1]. Some original examples given in the paper 79418 are recommended for following and will be run by internet in pandemic situation of IMECE 2020.

scholarly journals Structure of Neighboring Superclusters: A Quantitative Analysis

1983 ◽  
Vol 104 ◽  
pp. 265-271 ◽  
Author(s):  
J. Einasto ◽  
A. Klypin ◽  
S. Shandarin
Keyword(s):  
Quantitative Analysis ◽  
Numerical Methods ◽  
Correlation Analysis ◽  
Quantitative Method ◽  
Galaxy Distribution ◽  
The Galaxy

So far the galaxy correlation analysis was the only quantitative method used to describe the distribution of galaxies in space. Here we consider other numerical methods to treat impersonally various aspects of the galaxy distribution.

scholarly journals CONTROLLING NETWORK DYNAMICS

2019 ◽  
Vol 22 (07n08) ◽  
pp. 1950021 ◽  
Author(s):  
AMING LI ◽  
YANG-YU LIU
Keyword(s):  
Rapid Development ◽  
Network Dynamics ◽  
Great Depth ◽  
Network Control ◽  
Networked Systems ◽  
Practical Applications ◽  
Dynamics And Control ◽  
Engineered Systems ◽  
And Control ◽  
Near Future

Network science has experienced unprecedented rapid development in the past two decades. The network perspective has also been widely applied to explore various complex systems in great depth. In the first decade, fundamental characteristics of complex network structure, such as the small-worldness, scale-freeness, and modularity, of various complex networked systems were harvested from analyzing big empirical data. The associated dynamical processes on complex networks were also heavily studied. In the second decade, more attention was devoted to investigating the control of complex networked systems, ranging from fundamental theories to practical applications. Here we briefly review the recent progress regarding network dynamics and control, mainly concentrating on research questions proposed in the six papers we collected for this topical issue. This review closes with possible research directions along this line, and several important problems to be solved. We expect that, in the near future, network control will play an even bigger role in more fields, helping us understand and control many complex natural and engineered systems.

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