Detection Technology of Electronic Tongue in the Liquior Quality

2013 ◽  
Vol 462-463 ◽  
pp. 55-58
Author(s):  
Yi Yao ◽  
Ya Chuan Yao ◽  
Qiang Han ◽  
Hong Song
Keyword(s):  
Sensor Array ◽  
Taste Receptor ◽  
Electronic Tongue ◽  
Biological Sensing ◽  
Microbial Detection ◽  
Existing Problems ◽  
Detection Technology ◽  
New Type ◽  
Receptor Research ◽  
Modern Analytical

Electronic tongue is a new type of modern analytical instrumentation based on the human taste receptor research mechanism. Use the sensor array, as the biological sensing taste buds cells, to detect object,and to get results by the method of pattern recognition. Introduce the principles of electronic tongue, the study of several typical systems. Focus on the application in liquor quality, microbial detection, as well as some existing problems in the research development.

Review on Key Technologies of Infrared Thermal Wave Detection Technology in Parts Defects

2012 ◽  
Vol 542-543 ◽  
pp. 814-817
Author(s):  
Jian Min Zhou ◽  
Li Juan Fan ◽  
Rui Feng Zhang
Keyword(s):  
Thermal Wave ◽  
Heat Transfer Analysis ◽  
Research Progress ◽  
Destructive Testing ◽  
Existing Problems ◽  
Wave Detection ◽  
Detection Technology ◽  
Key Technologies ◽  
New Type ◽  
Non Destructive

Infrared thermal wave detection technology has been found to be a new type of wide attention non-destructive testing (NDT) method due to its non-contact, non-destructive, rapidity, wide imaging field and advantages of direct observation. Key technologies and the latest research progress of the infrared thermal wave technology in parts defects are reviewed in this paper. The key technologies include the heat stimulator, infrared thermal image processing, heat transfer analysis and etc. The existing problems of the technology are also pointed out.

Study of Submarine Optical Fiber Cable Detection by Interferometric Synthetic Aperture Sonar

2013 ◽  
Vol 341-342 ◽  
pp. 1094-1098
Author(s):  
Chun Guang Li ◽  
Ying Jian Wang ◽  
Gui Li Wang ◽  
Xiao Rui Qiao ◽  
Jin Chen
Keyword(s):  
Optical Fiber ◽  
Detection System ◽  
Research Direction ◽  
Synthetic Aperture ◽  
Future Research ◽  
Synthetic Aperture Sonar ◽  
Existing Problems ◽  
Detection Technology ◽  
New Type ◽  
Optical Fiber Cable

This paper first analyses the requirements of submarine optical fiber cable (SOFC) maintenance detection, then analyses the principle of the existing maintenance detection technology and these limitations briefly. On the basis of this, introduces SOFC detection system by synthetic aperture sonar (SAS) which is produced by Army research center of SOFC technology, and puts forward a new type of SOFC detection systeminterferometric synthetic aperture sonar (InSAS) detection system, analyzes its feasibility and advantage for detecting SOFC, and points out existing problems and future research direction.

scholarly journals Pandemic and Social Work: Exploring Finnish Social Workers’ Experiences through a SWOT Analysis

2021 ◽  
Author(s):  
Timo Harrikari ◽  
Marjo Romakkaniemi ◽  
Laura Tiitinen ◽  
Sanna Ovaskainen
Keyword(s):  
Content Analysis ◽  
Social Work ◽  
Social Workers ◽  
Swot Analysis ◽  
Adaptive Governance ◽  
Thematic Content Analysis ◽  
Face To Face ◽  
Existing Problems ◽  
Welfare Institutions ◽  
New Type

Abstract This article addresses the experiences of Finnish frontline social workers during the first wave of the COVID-19 pandemic in the spring of 2020. Two questions are addressed. First, ‘what types of challenges social work professionals faced’ in their everyday, ‘glocal’ pandemic setting and, second, what types of solutions they developed to meet these challenges. The data consist of 33 personal diaries that social work professionals created from mid-March to the end of May 2020. The diaries are analysed by a thematic content analysis and placed within the framework of a strengths, weaknesses, opportunities and threats analysis. The results suggest that the pandemic challenged social work at all levels, from face-to-face interactions to its global relations. The pandemic revealed not only the number of existing problems of social work, but also created new types of challenges. It demanded ultimate resilience from social workers and a new type of adaptive governance from social welfare institutions.

Porous graphene oxide chemi-capacitor vapor sensor array

2017 ◽  
Vol 5 (5) ◽  
pp. 1128-1135 ◽  
Author(s):  
Nagappa L. Teradal ◽  
Sharon Marx ◽  
Ahiud Morag ◽  
Raz Jelinek
Keyword(s):  
Graphene Oxide ◽  
Gas Sensor ◽  
Sensor Array ◽  
Porous Graphene ◽  
New Type ◽  
Vapor Sensor

A new type of cross-selective gas sensor has been developed, based on a vapor-induced capacitance modulation of chemically-functionalized porous graphene oxide (pGO).

Dynamic Characteristic Analysis of New Pneumatic Bending Joint

2012 ◽  
Vol 271-272 ◽  
pp. 1742-1749
Author(s):  
Peng Cheng Huang ◽  
Qing Hua Yang ◽  
Guan Jun Bao ◽  
Li Bin Zhang
Keyword(s):  
Response Time ◽  
Dynamic Characteristic ◽  
Simulation Analysis ◽  
Characteristic Analysis ◽  
Pneumatic Actuators ◽  
Bending Performance ◽  
First Law Of Thermodynamics ◽  
Existing Problems ◽  
Joint Damping ◽  
New Type

Aimed at existing problems on the bending performance of pneumatic bending joint, a new type of pneumatic bending joint is proposed in this paper. Double flexible pneumatic actuators are used as actuating drivers. Based on the first law of thermodynamics and the joint dynamic equation, the angle dynamic model is established and analyzed. Moreover simplified model is proposed. Meanwhile, its dynamic characteristic is analyzed through simulation analysis. The simulation suggests the following results: in the gas-filled phase, the joint’s pressure response time is about 10ms; while it is about 60ms in the gas-escape phase; and the angle response time of joint is 10 to 20ms. When the joint damping coefficient is increasing, this value will also increase.

Design for New Type Tobacco Sewing Machine Head

2014 ◽  
Vol 687-691 ◽  
pp. 300-303
Author(s):  
Li Zhang ◽  
Ting You Wang ◽  
Hong Bin Liu
Keyword(s):  
Simple Structure ◽  
Leaf Damage ◽  
Analytic Method ◽  
Sewing Machine ◽  
Tobacco Leaf ◽  
Existing Problems ◽  
Damage Rate ◽  
New Type ◽  
Drawing Method ◽  
New Machine

In order to reducing the worker's labor intensity in tobacco sewing, a new machine adoption with single thread sewing technology was developed. Through analyzing the existing problems in sewing machine and the tobacco damage situation, using drawing method, analytic method and other methods, the shape of the sewing component, hook line components and other mating parts were designed. The results show that the machine has the advantages of simple structure, controllable sewing speed, adjustable leaf thickness and quantity. And the tobacco leaf damage rate is low. The comprehensive efficiency in tobacco leaf knitting with this machine is four times higher than that with hand knitting. Its application prospect is considerable.

scholarly journals Research on High-strength Flexible Insulation Rod of Ultra High Voltage Live Working

2021 ◽  
Vol 248 ◽  
pp. 01054
Author(s):  
Zhigang Wang ◽  
Yun Xiang ◽  
Ziqi Yi ◽  
Longfei He ◽  
Mingjie Chen ◽  
...  
Keyword(s):  
High Voltage ◽  
Transmission Lines ◽  
Large Deflection ◽  
High Strength ◽  
Heavy Weight ◽  
Existing Problems ◽  
The Core ◽  
New Type ◽  
Protective Cover ◽  
Core Rod

Insulation pull rods are commonly used tools and instruments in the replacement of insulators for live work. Traditional hard insulated pull rods are difficult to transport and assemble due to their large deflection, especially due to the long and heavy weight of insulated pull rods used in UHV live operations, the difficulties in the above links are more obvious. In view of the existing problems in the use of the existing insulated pull rods, by studying the overall processing type, the soft pull rod weaving process, the technology of tightly combining the core rod and the protective cover, the technology of connecting the core rod and the metal, etc., a new type suitable for live transmission lines has been developed. Large-tonnage soft insulated pull rod for operation. Effectively solve a series of problems caused by the large deflection of the hard insulated pull rod.

scholarly journals Research Status and Development Trend of Magnetic Fluid Acceleration Sensors

2021 ◽  
pp. 10-15
Author(s):  
Mu Xueyu ◽  
Yang Shaojie ◽  
Kong Xiangdong
Keyword(s):  
General Structure ◽  
Inertial Mass ◽  
Development Trend ◽  
Research Progress ◽  
Acceleration Sensor ◽  
Magnetic Liquid ◽  
Existing Problems ◽  
Acceleration Sensors ◽  
New Type ◽  
The Difference

As a new type of accelerometer, in recent years, the magnetic liquid acceleration sensor has attracted widespread attention worldwide, and related research results have also continued to emerge. This article mainly introduces the theoretical basis and general structure of the magnetic liquid acceleration sensor, and according to the difference of inertial mass, briefly describes the research progress of the magnetic liquid acceleration sensor by national and foreign scholars in recent years and some in existing problems. Finally, suggestions and prospects for the future development trend of the magnetic liquid acceleration sensor are given.

scholarly journals Development of a Pattern Recognition Tool for the Classification of Electronic Tongue Signals Using Machine Learning

2021 ◽  
Vol 5 (1) ◽  
pp. 21
Author(s):  
Edgar G. Mendez-Lopez ◽  
Jersson X. Leon-Medina ◽  
Diego A. Tibaduiza
Keyword(s):  
Machine Learning ◽  
Dimensionality Reduction ◽  
Performance Measures ◽  
Sensor Array ◽  
Three Dimensional ◽  
Electronic Tongue ◽  
Sensor Arrays ◽  
Classification Performance ◽  
Supervised Machine Learning ◽  
Electrochemical Tests

Electronic tongue type sensor arrays are made of different materials with the property of capturing signals independently by each sensor. The signals captured when conducting electrochemical tests often have high dimensionality, which increases when performing the data unfolding process. This unfolding process consists of arranging the data coming from different experiments, sensors, and sample times, thus the obtained information is arranged in a two-dimensional matrix. In this work, a description of a tool for the analysis of electronic tongue signals is developed. This tool is developed in Matlab® App Designer, to process and classify the data from different substances analyzed by an electronic tongue type sensor array. The data processing is carried out through the execution of the following stages: (1) data unfolding, (2) normalization, (3) dimensionality reduction, (4) classification through a supervised machine learning model, and finally (5) a cross-validation procedure to calculate a set of classification performance measures. Some important characteristics of this tool are the possibility to tune the parameters of the dimensionality reduction and classifier algorithms, and also plot the two and three-dimensional scatter plot of the features after reduced the dimensionality. This to see the data separability between classes and compatibility in each class. This interface is successfully tested with two electronic tongue sensor array datasets with multi-frequency large amplitude pulse voltammetry (MLAPV) signals. The developed graphical user interface allows comparing different methods in each of the mentioned stages to find the best combination of methods and thus obtain the highest values of classification performance measures.

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