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Width Measurement of Cold-rolled Strip

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Semiconductor Photonics and Technology 2001年第2期7卷 125-128页

作者： SHANG Li-ping ( school of electr. Eng., Yanshan University, Qinhuangdao 066004, CHN) 燕山大学电气工程学院河北秦皇岛 066004

The principle of strip width measuring system with optical fiber link is described, and a practical method is introduced.

关键词： Width Optical fiber Amplitude modulation

Fuzzy Pattern Recognition System for Detection of Alga Distribution

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Semiconductor Photonics and Technology 2001年第2期7卷 80-83页

作者： ZHANG Shu-qing (school of electr. Eng., Yanshan University, Qinhuangdao 066004, CHN) 燕山大学电气工程学院河北秦皇岛 066004

To realize the on-line measurement and make analysis on the density of algae and their cluster distribution, the fluorescent detection and fuzzy pattern recognition techniques are used. The principle of fluorescent fi... 详细信息

关键词： Algae Fluorescent fiber-optic detection Fuzzy pattern recognition

All Fiber-optic Fluorescent Spectral Measurement and Analysis on Alga Chla/c Characteristics

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Semiconductor Photonics and Technology 2001年第2期7卷 120-124页

作者： ZHANG Shu-qing (school of electr. Eng., Yanshan University,Qinhuangdao 066004,CHN) 燕山大学电气工程学院河北秦皇岛 066004

The fluorescent principle used for measuring alga characteristic parameters and the optimum structure design of the instrument are discussed. The fluorescent spectrum of Chla/c and the time-resolved different spectrum ΔA(λ,t) are given. The research provides an effective method for considering the density and the classification of algae, which will be helpful to monitor sea pollution.

关键词： Fluorescent measurement Fiber optic transmission Alga Chla/c characteristic spectra

Fiber Optic 3-D Space Piezoelectric Accelerometer and its Antinoise Technology

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Semiconductor Photonics and Technology 2001年第3期7卷 163-167页

作者： CAO Man ting (school of electr. Eng., Yanshan University, Qinhuangdao 066004, CHN) 燕山大学电气工程学院河北秦皇岛 066004

The mechanical structure of piezoelectric accelerometer is designed, and the operation equations on X , Y , and Z axes are deduced. The test results of 3 D frequency response are given. Noise disturbances are effectiv... 详细信息

关键词： 3D piezoelectric accelerometer Synchronous detection Fiber optic transmission

Trajectory Tracking for Direct Drive X-Y Table Using Recurrent Radial Basis Function Network

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Trajectory Tracking for Direct Drive X-Y Table Using Recurre...

Theory of Fiber Fluorescence and Wavelet Analysis Using in the Measurement of Bio-medical Temperature

第二十九届中国控制会议

作者： WANG Limei,WU Zhitao,LIU Chunfang school of electr ical engineering,Shenyang University of Technology,Shenyang,110870,P.R.China

This paper presented a recurrent radial basis function network-based（RBFN-based）fuzzy neural network（FNN） to control the position of x-y table mover to track periodic reference *** two-axis motion control system was composed of two permanent-magnet linear synchronous motors（PMLSM）.The proposed recurrent RBFN-based FNN combined the merits of self-constructing fuzzy neural network（SCFNN）,recurrent neural network（RNN）and *** structure-learning and parameter-learning phases were performed *** structure learning was based on the partition of input space,and the parameter learning was based on the supervised gradient descent method using a delta adaptation *** simulation results show that the designed control system of XY table has strong robustness and high contour accuracy.

关键词： X-Y Table PMLSM Recurrent Neural Network Self-constructing Fuzzy Neural Network

来源： cnki会议评论

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Semiconductor Photonics and Technology 2002年第3期8卷 153-156页

作者： ZHANG Jing chao, WANG Yu tian (school of electr. Eng., Yanshan University, Qinhuangdao 066004, CHN) school of electr. Eng. Yanshan University Qinhuangdao 066004

The method of the temperature measurement based on the fluorescence lifetime and fiber transmitting technology is proposed. The certain or uncertain relationship between temperature and optical characteristics of some fluorescence material excited by function pulse or square wave pulse, and the temperature relativity of the feature are analyzed. The method based on the wavelet transformation theory is given to acquire temperature signals accurately and to remove the noise.

关键词： Theory of fluorescence bio-medical temeprature measurement waveletanalysis

Liquid Level Measurement in Oil Tanks Based on Double-differential Pressure Technique

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Semiconductor Photonics and Technology 2001年第3期7卷 168-171,176页

作者： WEN Shu hui, DUAN Hui fang (school of electr. Eng., Yanshan University, Qinhuangdao 066004, CHN) 燕山大学电气工程学院河北秦皇岛 066004

The system principle and configuration of the double differential pressure method for measuring oil tank level are presented. The fundamental method and circuit of fiber optic transmission are analyzed .The accuracy a... 详细信息

关键词： Double differential pressure technique Level measurement Fiber optic transmission

electric Power Development： Stage Characteristics and Trend in the ＂12th Five Years＂

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electricity 2013年第1期24卷 13-17页

作者： Department of Statistics Information, China electr Zhong Zhaorui Department of Statistics Information China Electricity Council

Review of economic and electric power devel-opment Economic development. Since China＇s reform and opening up, China has made great developments in its economy and industry. The Chinese economy sustained a rapid growth, and it has become the second largest econo-my in the world. The economic structure has changed from a rudimentary and unbalanced structure to a mature and relatively balanced one, and the coordination of economic development has been distinctly strengthened. Although the economy increased rapidly, there are still some issues in improving the quality of development, promoting indus-try transfonnation and upgrading, in order to realize a bal- anced and harmonious development of regional economies, and a sustainable healthy development of the economy.

关键词：电力发展特征和经济发展中国经济持续健康发展经济结构改革开放经济增长

Effect of drug therapies on self-reported chemosensory outcomes after COVID-19

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2024年第2期10卷 88-96页

作者： Marco A.Fornazieri Bruno M.Cunha Samuel P.nicácio Lucas K.Anzolin JoséL.B.da Silva Aristides Fernandes Neto Deusdedit Brandão Neto Richard L.Voegels Fábio D.R.Pinna Department of Surgery Londrina State UniversityLondrinaBrazil Department of Medicine Pontifical Catholic University of ParanáLondrinaBrazil Department of Otorhinolaryngology University of São PauloSao PauloBrazil Department of Otorhinolaryngology:Head and Neck Surgery Perelman School of MedicineSmell and Taste CenterUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA

Objective:The aim of this study was to assess the relative efficacy of medications used following severe acute respiratory syndrome coronavirus-2(SARS-CoV-2)infection on self-reported alterations in taste and/or smell ***:Seven hundred and fourteen persons with self-reported postcoronavirus disease 2019(post-COVID-19)chemosensory disorders were personally interviewed regarding specific medications they were administered following the acute phase of the *** dependent measure—self-reported total recovery of chemosensory symptoms—was subjected to stepwise logistic *** predictors included demographic and clinical variables,in addition to specific medications used to mitigate disease symptoms(i.e.,systemic corticosteroids,oseltamivir,vitamin C,ibuprofen,hydroxychloroquine,azithromycin,ivermectin,nitazoxanide,anticoagulants,and zinc).Results:The median time between COVID-19 symptom onset and the interviews was 81 days(interquartile range:60-104).Of the 714 subjects,249(34.9%)reported total recovery of their chemosensory function;437(61.2%)had at least one treatment since the beginning of the *** and those with more comorbidities had undergone more *** recovery rates of the treated and nontreated groups did not differ ***,respondents who had used nitazoxanide tended to have a higher rate of self-reported taste or smell *** who took oral zinc were less likely to ***:No medication employed during the first months after SARS-CoV-2 infection had a clear positive effect on returning self-reported smell or taste function to normal,although nitrazoxide trended in a positive *** zinc had a negative effect on the reported recovery of these senses.

关键词： chemosensory disorder coronavirus infections COVID-19 drug therapy SARS-CoV-2 smell loss taste loss