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Error analysis and compensation of compound measuring system for blade surface

Li Bing,Chen Lei,Ding Jianjun,Jiang Zhuangde

Strategic Study of CAE 2013, Volume 15, Issue 1,   Pages 39-44

Abstract: Aiming at this problem, a compound measuring principle is proposed in this paper.Using the principle, the airfoil surface and root datum of a blade are measured based on contactAnd a four-coordinate measuring system is designed and established.Then, on the basis of the mechanical structure of the measuring system, the geometric errorthe proposed error analysis and compensation methods can improve the accuracy of the four-coordinate measuring

Keywords： blade airfoil surface     compound measuring principle     error analysis     error compensation     laser interferometry    

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Comparison of analytical procedures for measuring phosphorus content of animal manures in China

Guohua LI, Qian LIU, Haigang LI, Fusuo ZHANG

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 4,   Pages 431-440 doi: 10.15302/J-FASE-2019279

Abstract:

The concentration and components of manure phosphorus (P) are key factors determining potential P bioavailability and runoff. The distribution of P forms in swine, poultry and cattle manures collected from intensive and extensive production systems in several areas of China was investigated with sequential fractionation and a simplified two-step (NaHCO -NaOH/EDTA) procedures. The mean total P concentration, determined by the sequential fractionation procedure of intensive swine, poultry and cattle manure, expressed as g·kg , was 14.9, 13.4 and 5.8 g·kg , respectively, and 4.4 g·kg in extensive cattle manure. In intensive swine, poultry and cattle manure about 73%, 74% and 79% of total P, respectively, was bioavailable (i.e., P extracted by H O and NaHCO ) and 78% in extensive cattle manure. The results indicated the relative environmental risk, from high to low, of swine, poultry and cattle manure. There is considerable regional variation in animal manure P across China, which needs to be considered when developing manure management strategies.

Keywords： diet phosphorus     manure phosphorus     sequential P fractionation    

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Steam reforming of toluene as a tar model compound with modified nickel-based catalyst

Omeralfaroug KHALIFA, Mingxin XU, Rongjun ZHANG, Tahir IQBAL, Mingfeng LI, Qiang LU

Frontiers in Energy 2022, Volume 16, Issue 3,   Pages 492-501 doi: 10.1007/s11708-021-0721-8

Abstract: Catalytic steam reforming is a promising route for tar conversion to high energy syngas in the process of biomass gasification. However, the catalyst deactivation caused by the deposition of residual carbon is still a major challenge. In this paper, a modified Ni-based Ni-Co/Al O -CaO (Ni-Co/AC) catalyst and a conventional Ni/Al O (Ni/A) catalyst were prepared and tested for tar catalytic removal in which toluene was selected as the model component. Experiments were conducted to reveal the influences of the reaction temperature and the ratio between steam to carbon on the toluene conversion and the hydrogen yield. The physicochemical properties of the modified Ni-based catalyst were determined by a series of characterization methods. The results indicated that the Ni-Co alloy was determined over the Ni-Co/AC catalyst. The doping of CaO and the presence of Ni-Co alloy promoted the performance of toluene catalytic dissociation over Ni-Co/AC catalyst compared with that over Ni/A catalyst. After testing in steam for 40 h, the carbon conversion over Ni-Co/AC maintained above 86% and its resistance to carbon deposition was superior to Ni/A catalyst.

Keywords： catalytic steam reforming     tar model compound     Ni-based catalyst     carbon resistance    

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Shear stress distribution prediction in symmetric compound channels using data mining and machine learning

Zohreh SHEIKH KHOZANI, Khabat KHOSRAVI, Mohammadamin TORABI, Amir MOSAVI, Bahram REZAEI, Timon RABCZUK

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5,   Pages 1097-1109 doi: 10.1007/s11709-020-0634-3

Abstract: a series of experimental tests were conducted to assess the shear stress distribution in prismatic compoundThe shear stress values around the whole wetted perimeter were measured in the compound channel withand Additive Regression implemented on attained data to predict the shear stress distribution in the compound

Keywords： compound channel     machine learning     SKM model     shear stress distribution     data mining models    

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Function and principle innovative design of mechanical products based on TRIZ/FA

YUAN Feng, WANG Tai-yong, NIE Hui-juan

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3,   Pages 350-355 doi: 10.1007/s11465-006-0031-1

Abstract: Function and principle innovation is the ultimate innovation of a product.To achieve Function and principle innovation design of mechanical products, a new process model of functionand principle solving is proposed, based on TRI

Keywords： TRI     principle solving     product     principle innovation     ultimate innovation    

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A feasibility study of the measuring accuracy and capability of wireless sensor networks in tunnel monitoring

Xiaojun LI, Zhong JI, Hehua ZHU, Chen GU

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 111-120 doi: 10.1007/s11709-012-0150-1

Abstract: Fire disasters and the deterioration of tunnel structures are major concerns for tunnel operation and maintenance. Traditional wired monitoring systems have many drawbacks in terms of installation time, overall cost, and flexibility in tunnel environments. In recent years, there has been growing interest in the use of wireless sensor networks (WSNs) for the monitoring of various structural monitoring applications. This paper evaluated the feasibility of applying a WSN in the monitoring of tunnels. The monitoring requirements of tunnels under explosion and combustion fire scenarios are analyzed using numerical simulation, and the maximum possible distance for temperature sensors is derived. The displacement monitoring of tunnels using an inclinometer is investigated. It is recommended that the inclinometer should be installed in the 1/4 span of the tunnel structure. The maximum wireless transmission distances in both outdoor and tunnel environments were examined. The influences of surface materials and sensor node locations on the data transmission distance in tunnel environments were also investigated. The experimental results show that the data loss in tunnel environments is approximately three times that in outdoor environments. Surface material has a considerable influence on the transmission distance of radio signals. The distance is 25 ? 28 m for a raw concrete surface, 20 m for a brick surface, and 36 m for a terrazzo surface. The transmission distances along the middle of quarter points are approximately 0.9 ( is the transmission distance in the center of the tunnel), and the relative error is less than±3%. The transmission distances at different locations along the bottom exhibit significant differences, decreasing from the middle to the corner point, with distances of approximately 0.8 at the quarter points and minimum distances of approximately 0.55 at the corner points.

Keywords： wireless sensor network (WSN)     tunnel     monitoring     feasibility study    

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Soft curvature sensors for measuring the rotational angles of mechanical fingers

Haixiao LIU, Li LI, Zhikang OUYANG, Wei SUN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 610-621 doi: 10.1007/s11465-020-0596-0

Abstract: First, the working principle of soft sensors is investigated, and their structure is designed.

Keywords： soft sensor     Ga-In-Sn alloy     strain sensing     curvature sensing     mechanical finger bending    

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R158Q and G212S, novel pathogenic compound heterozygous variants in of Gitelman syndrome

Frontiers of Medicine 2022, Volume 16, Issue 6,   Pages 932-945 doi: 10.1007/s11684-022-0963-9

Abstract: Meanwhile, we conducted a compound heterozygous model—Ncc R156Q/G210S mice corresponding to human NCC

Keywords： Gitelman syndrome     mouse model     compound heterozygous     hypokalemia     Slc12a3    

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WEIS wheel speed real-time measuring method for VOSM

Mengyao PAN, Guixiong LIU, Xiaobin HONG, Tusheng LIN,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 322-327 doi: 10.1007/s11465-010-0022-0

Abstract: To solve the problems in traditional wheel speed measuring methods, such as low measurement precisionof the vehicle’s operating attitude, a wheel embedded intelligent sensors (WEIS) wheel speed measuringshows that under experimental conditions the speed measurement error is −2.05%, and the speed measuring

Keywords： wheel embedded     intelligent sensing     wheel speed     monitoring    

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A compound load simulator based on zero-torsion parallel mechanisms

Jingjun YU, Wei LI, Xu PEI, Shusheng BI, Guanghua ZONG

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 1-4 doi: 10.1007/s11465-012-0306-7

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The measuring techniques of greenhouse gas emission from reservoir aquatic ecosystem

Dai Huichao,Li Hua,Zheng Tiegang

Strategic Study of CAE 2010, Volume 12, Issue 9,   Pages 21-28

Abstract: of global greenhouse gases at home and abroad, by means of summarizing and analyzing the methods for measuring

Keywords： reservoir aquatic ecosystem     greenhouse gas     flux     measuring techniques    

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A spectrometer for measuring particle size distributions in the range of 3 nm to 10 μm

Jieqiong LIU,Jingkun JIANG,Qiang ZHANG,Jianguo DENG,Jiming HAO

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 63-72 doi: 10.1007/s11783-014-0754-x

Abstract: A full spectrum in the size range of 3 nm to 10 μm was demonstrated by measuring aerosol generated using

Keywords： spectrometer     particle size distribution     electrical mobility     linear inversion     aerodynamic diameter    

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Control measuring technique of long distance only head driving in shield tunnel

Xu Weiqing,Han Fuzhong

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 56-58

Abstract: Based on the analysis of the measuring accuracy, only through the wire line can not satisfy the design

Keywords： shield     long distance     only head driving     control measuring    

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Engineering practice of mechanical soil aeration for the remediation of volatile organic compound-contaminated

Yan Ma, Xiaoming Du, Yi Shi, Deyi Hou, Binbin Dong, Zhu Xu, Huiying Li, Yunfeng Xie, Jidun Fang, Zheng Li, Yunzhe Cao, Qingbao Gu, Fasheng Li

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0870-x

Abstract: soil remediation technique that is particularly suitable for the remediation of large volatile organic compound-contaminated

Keywords： Soil contamination     Volatile organic compound     Mechanical soil aeration     Engineering practice     China    

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Principle of maximum entropy for reliability analysis in the design of machine components

Yimin ZHANG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1,   Pages 21-32 doi: 10.1007/s11465-018-0512-z

Abstract: reliability of machine components with parameters that follow an arbitrary statistical distribution using the principle

Keywords： machine components     reliability     arbitrary distribution parameter     principle of maximum entropy    

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Title Author Date Type Operation

Error analysis and compensation of compound measuring system for blade surface

Li Bing,Chen Lei,Ding Jianjun,Jiang Zhuangde

Journal Article

Comparison of analytical procedures for measuring phosphorus content of animal manures in China

Guohua LI, Qian LIU, Haigang LI, Fusuo ZHANG

Journal Article

Steam reforming of toluene as a tar model compound with modified nickel-based catalyst

Omeralfaroug KHALIFA, Mingxin XU, Rongjun ZHANG, Tahir IQBAL, Mingfeng LI, Qiang LU

Journal Article

Shear stress distribution prediction in symmetric compound channels using data mining and machine learning

Zohreh SHEIKH KHOZANI, Khabat KHOSRAVI, Mohammadamin TORABI, Amir MOSAVI, Bahram REZAEI, Timon RABCZUK

Journal Article

Function and principle innovative design of mechanical products based on TRIZ/FA

YUAN Feng, WANG Tai-yong, NIE Hui-juan

Journal Article

A feasibility study of the measuring accuracy and capability of wireless sensor networks in tunnel monitoring

Xiaojun LI, Zhong JI, Hehua ZHU, Chen GU

Journal Article

Soft curvature sensors for measuring the rotational angles of mechanical fingers

Haixiao LIU, Li LI, Zhikang OUYANG, Wei SUN

Journal Article

R158Q and G212S, novel pathogenic compound heterozygous variants in of Gitelman syndrome

Journal Article

WEIS wheel speed real-time measuring method for VOSM

Mengyao PAN, Guixiong LIU, Xiaobin HONG, Tusheng LIN,

Journal Article

A compound load simulator based on zero-torsion parallel mechanisms

Jingjun YU, Wei LI, Xu PEI, Shusheng BI, Guanghua ZONG

Journal Article

The measuring techniques of greenhouse gas emission from reservoir aquatic ecosystem

Dai Huichao,Li Hua,Zheng Tiegang

Journal Article

A spectrometer for measuring particle size distributions in the range of 3 nm to 10 μm

Jieqiong LIU,Jingkun JIANG,Qiang ZHANG,Jianguo DENG,Jiming HAO

Journal Article

Control measuring technique of long distance only head driving in shield tunnel

Xu Weiqing,Han Fuzhong

Journal Article

Engineering practice of mechanical soil aeration for the remediation of volatile organic compound-contaminated

Yan Ma, Xiaoming Du, Yi Shi, Deyi Hou, Binbin Dong, Zhu Xu, Huiying Li, Yunfeng Xie, Jidun Fang, Zheng Li, Yunzhe Cao, Qingbao Gu, Fasheng Li

Journal Article

Principle of maximum entropy for reliability analysis in the design of machine components

Yimin ZHANG

Journal Article