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Study on fractal features of modulation signals

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Science in China(Series F) 2001年第2期44卷 152-158页

作者：吕铁军郭双冰肖先赐 department of automatization Tsinghua University department of Electronic Engineering University of Electronic Science and Technology of China

Based on fractal theory, the note presents a novel method of modulation signals classification that adopts box dimension and information dimension extracted from received signals as features of classification. These features contain the characteristics of magnitude, frequency and phase of signals, and collect discriminatory information among various modulation modes. They are effective features in classification sense, and are insensitive to noises interfering. The theoretical analysis also proves the above conclusion. The classifier design is very simple based on such features. The simulation results show that the performances of signal classification are superior.

关键词： modulation recognition feature extracting fractal noise interfere.

Adaptive Decentralized Asymptotic Tracking Control for Large-Scale Nonlinear Systems With Unknown Strong Interconnections

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IEEE/CAA Journal of Automatica Sinica 2022年第1期9卷 173-186页

作者： Ben Niu Jidong Liu Ding Wang Xudong Zhao Huanqing Wang College of Information Science and Engineering Shandong Normal UniversityJinan 250014China School of Artificial Intelligence Nankai UniversityTianjin 300071China Faculty of Information Technology Beijing University of TechnologyBeijing 100124 State Key Laboratory of Management and Control for Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China School of Control Science and Engineering Dalian University of TechnologyDalian 116023China department of Mathematical Science and automatization Institute Bohai UniversityJinzhou 121000China

An adaptive decentralized asymptotic tracking control scheme is developed in this paper for a class of large-scale nonlinear systems with unknown strong interconnections,unknown time-varying parameters,and ***,by employing the intrinsic properties of Gaussian functions for the interconnection terms for the first time,all extra signals in the framework of decentralized control are filtered out,thereby removing all additional assumptions imposed on the interconnec-tions,such as upper bounding functions and matching ***,by introducing two integral bounded functions,asymptotic tracking control is ***,the nonlinear filters with the compensation terms are introduced to circumvent the issue of“explosion of complexity”.It is shown that all the closed-loop signals are bounded and the tracking errors converge to zero *** the end,a simulation example is carried out to demonstrate the effectiveness of the proposed approach.

关键词： Adaptive decentralized control asymptotic tracking control large-scale nonlinear systems unknown strong interconnections

Automatic Software Install/Update for Embedded Linux

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Journal of Shanghai Jiaotong university(Science) 2008年第1期13卷 107-109页

作者：陶莉黄佩伟 department of Electronic Engineering Shanghai Jiaotong University

Linux has a special feature of automount in the Linux kernel. Filesystem can be mounted and unmounted automatically. Its performance is similar to MS Windows. It works well under demands of more saving resources and automatization, like memory of system. An approach to install/update software automatically on embedded platform was proposed. This approach derives from above feature based on embedded environment with Linux OS. Configurations of files related to this feature were introduced. An example in practice was given to realize this approach from universal serial bus (USB) memory disk when USB disk is available.

关键词： automount universal serial bus (USB) disk autofs automisc autorun.sh install.shf

A hybrid point cloud alignment method combining particle swarm optimization and iterative closest point method

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Advances in Manufacturing 2014年第1期2卷 32-38页

作者： Quan Yu Kesheng Wang department of Production and Quality Engineering Norwegian University of Science and Technology

3D quality inspection is widely applied in many industrial fields including mould design, automotive and blade manufacturing, etc. A commonly used method is to obtain the point cloud of the inspected object and make a comparison between the point cloud and the corresponding CAD model or template. Thus, it is important to align the point cloud with the template first and foremost. Moreover, for the purpose of automatization of quality inspection, this alignment process is expected to be completed without manual interference. In this paper, we propose to combine the particle swarm optimization （PSO） with iterative closest point （ICP） algorithm to achieve the automated point cloud alignment. The combination of the two algorithms can achieve a balance between the alignment speed and accuracy, and avoid the local optimal caused by bad initial position of the point cloud.

关键词： Quality inspection Point cloud alignment Particle swarm optimization (PSO) Iterative closest point(ICP)

Abnormal liver enzymes: A review for clinicians

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World Journal of Hepatology 2021年第11期13卷 1688-1698页

作者： M Ammar Kalas Luis Chavez Monica Leon Pahnwat Tonya Taweesedt Salim Surani department of Internal Medicine Texas Tech University Health Science CenterEl PasoTX 79905United States department of General Surgery University of MexicoCiudad de Mexico 01120Mexico department of Medicine Corpus Christi Medical CenterCorpus ChristiTX 78412United States department of Medicine Texas A&M UniversityCollege StationTX 77843United States department of Anesthesiology Mayo ClinicRochesterMN 55905United States

Liver biochemical tests are some of the most commonly ordered routine tests in the inpatient and outpatient setting,especially with the automatization of testing in this technological *** tests include aminotransferases,alkaline phosphatase,gamma-glutamyl transferase,bilirubin,albumin,prothrombin time and international normalized ratio(INR).Abnormal liver biochemical tests can be categorized based on the pattern and the magnitude of aminotransferases ***,abnormalities in aminotransferases can be classified into a hepatocellular pattern or cholestatic pattern and can be further sub-classified based on the magnitude of aminotransferase elevation to mild[5-15×ULN).Hepatocellular pattern causes include but are not limited to;non-alcoholic fatty liver disease/non-alcoholic steatohepatitis,alcohol use,chronic viral hepatitis,liver cirrhosis(variable),autoimmune hepatitis,hemochromatosis,Wilson’s disease,alpha-1 antitrypsin deficiency,celiac disease,medication-induced and ischemic *** pattern causes include but is not limited to;biliary pathology(obstruction,autoimmune),other conditions with hyperbilirubinemia(conjugated and unconjugated).It is crucial to interpret these commonly ordered tests accurately as appropriate further workup,treatment and referral can greatly benefit the patient due to prompt treatment which can improve the natural history of several of the diseases mentioned and possibly reduce the risk of progression to the liver cirrhosis.

关键词： Liver function test Liver enzymes Hepatitis Liver biochemical studies Nonalcoholic steatohepatitis Hyperbilirubenemia

An Automatic Testing System of Scheduling Strategies in Real-Time UNIX

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Journal of Systems Engineering and Electronics 2001年第2期12卷 59-62页

作者： Qin Xiao, Pang Liping & Han Zongfen department of Computer Science, Huazhong University of Science and Technology, Wuhan 430074, P. R. China department of Computer Science Huazhong University of Science and Technology Wuhan 430074 P. R. China

This paper proposes a formal model of the automatic testing system for scheduling strategies in real-time UNIX and describes the algorithm of the key part of the system. The model of the system is an important technology of the automatization of software development. According to the model presented in the paper, many different kinds of automatic testing systems can be designed and developed easily. At the end of the paper, the prototype proves the feasibility of the model and design.

关键词： Algorithms Automatic testing Real time systems Scheduling Software prototyping

Washing the Seeds food, Eliminating the contaminants, Promoting the Food Safety and Public Health

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Washing the Seeds food, Eliminating the contaminants, Promot...

An Overview of the Development of Novel Textile Design by the Application of Creative Components of the Chakma Community of the Chittagong Hill Tracts in Bangladesh

中国营养学会第十五届全国营养科学大会

作者： Hanyou Xu department of Internal Medicine INTERNATIONAL LIASOM Hospital in Anji

As the bad situation of climate change and environmental pollution have not been controlled up to now. The contaminants in the seeds food in and outside of China has been being at large, or even more and more serious and critical. There is not any concrete methods, management, regulation or national process standard of food safety to eliminate or reduce the contaminants well in the seeds food before making into flour and other foodstuffs round the world. Since the seeds food are main life needed food and necessaries of life. It is imperative to eliminate the contaminants in the seeds food for promoting people’ health around the world before the contaminants are eaten and harmed the human-being. Methods Because I am a doctor and coming from countryside where produce the seeds food in China. So I have experienced the bad situation of the contaminants in the seeds food and how the countryside local peasants to eliminate the contaminants in the seeds food. The old process was by using the water wetted white cloth of cotton to soak repeatedly under the contaminated seeds food and then washing the contaminants(which coming from the seeds food) out on the white cloth of cotton. When the process went on and on. The contaminants in the seeds food must be fainter and fainter until the washed water is clear. The food processing was finished. The fact has told us that every work for the clearing the contaminated seeds food. The clear washing water was changed into dirty muddy water. Which must contain lots of pollutants. Results Due to the above mentioned experience, I have developed the new concept to eliminate the contaminants in the seeds food by water washing the seeds food directly and then drying the washed seeds food in the degree not destroying nutrients in it. As the modern time, we have not done something to eliminate the contaminants in the seeds food. By using the modern advanced technology, this concept must be easily to be made into automatization equipment. Which

关键词： Seeds food Contaminants Food Safety Public Health Food processing Technology

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Journal of Textile Science and Technology 2020年第1期6卷 1-10页

作者： Chakma Arpan Xinbo Ding Shuying Jiang A. F. M. Fahad Halim Hossen Md. Muzammel department of Textile Science & Engineering College of Materials and Textiles Zhejiang Sci-Tech University Hangzhou China

In the world, there are more than 370 million indigenous and tribal people with especial culture and traditions. The Chakma’s is one of the groups of indigenous people dwelling Chittagong hill tracts in Bangladesh. Chakma’s has its own culture, tradition, literature, and costume designs. The design costumes of the Chakma’s play an essential role. The Chakma’s preserved their textile design in “Alam”. Alam is a kind of cloth embroidered with various designs carrying the heritage of the Chakma. The use of Alam began approximately 500 years ago. All used clothing in Chakma society is weaved manually in the back-strap loom, which is generally very time-consuming— this limits its design aesthetics and universal use. Because of globalisation, the use of the traditional design of Chakma’s are threatened today. Till today in our country and overseas, no attempts were taken for research of the traditional Chakma’s design. The purpose of this research is to upgrade and digitise Chakma’s designs. Furthermore, efforts were made for the automatization of the traditional process to preserve traditional Chakma’s designs. In this study analysis of the fabric designs, pattern structure, colour applications of the traditional Aalam design were constructed using small prototype Rapier loom technology. We found that most of the single designs of the Alam were possible to weave in small prototype modern loom. On the other hand, intricate designs were not possible to weave in small prototype loom but are possible in the jacquard loom. The key idea is to establish an approach to modernise the traditional weaving process in order to make it convenient, economical and less time-consuming.

关键词： Aalam Indigenous Clothes Traditional Loom Plain Weave Structure Small Prototype Machine Automatic Loom

Multi-Aspect Value of Measuring Systems and Methods Based on the Results of Roundness Measurements

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Journal of Mechanics Engineering and Automation 2012年第8期2卷 514-530页

作者： Miodrag Hadzistevic Imre Nemedi Milenko Sekulic Martin Bosak Janko Hodolic department of Production Engineering Faculty of Technical Sciences University of Novi Sad Novi Sad 21000 Serbia Devartmen of Mechatronics Subotica Tech - College of Applied Sciences Subotica 24000 Serbia department of Management Faculty of Business Economics University of Economics Bratislava Kogice 04130 Slovak Republic

The increase of quality consciousness brings about the growth of significance of metrological systems. Besides the significance, the level of automatization, flexibility, accuracy, et al. have advanced. The modern measuring systems are constructed so that nearly all necessary dimensional characteristics can be measured with them. However, conventional measuring systems are provided for particular mode measurements. This research paper presents and compares several conventional and modem measuring systems and methods. The measured value is roundness, one of the basic shapes of cross section in mechanical engineering. This paper arises in search of answers for the question whether conventional measuring techniques and equipments are made redundant because of the modern ones. In what segments and in which criterion are modem methods preferable？

关键词： Measuring systems roundness V-block method coordinate measuring machine (CMM) rotational datum method(RDM).