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An Ultrasonic Backscatter Instrument for Cancellous Bone Evaluation in Neonates Article

Chengcheng Liu,Rong Zhang,Ying Li,Feng Xu,Dean Ta,Weiqi Wang

Engineering 2015, Volume 1, Issue 3,   Pages 336-343 doi: 10.15302/J-ENG-2015079

Abstract:

Ultrasonic backscatter technique has shown promise as a noninvasive cancellous bone assessment toolA novel ultrasonic backscatter bone diagnostic (UBBD) instrument and an in vivo applicationIn this study, the backscatter signal could be measured within 5 s using the UBBD.The backscatter signal was measured at a central frequency of 3.5 MHz.backscatter (FSAB), zero frequency intercept of apparent backscatter (FIAB), and spectral centroid shift

Keywords： ultrasonic backscatter     cancellous bone evaluation     signal of interest (SOI)     backscatter instrument     neonatal    

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Development and Creations of Measuring Instrument Transformers and Their Testing Equipment

Zhao Xiumin,Zhao Yitao

Strategic Study of CAE 2000, Volume 2, Issue 3,   Pages 73-76

Abstract:

The development and creation of measuring instrument transformers and their testing equipment in improvingThey include the development in error compensation for instrument transformers, high accuracy instrumenttransformers with a current booster or voltage booster, current comparators and two-stage instrumentFuture work in this field, will involve the development of instrument transformers with small secondarycurrent and voltage, application of computers and microprocessors in instrument transformers and their

Keywords： instrument transformer     ratio standard     calibrator     error compensation    

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Instrument Industry Needs to Develop Ahead of Time

Strategic Study of CAE 2002, Volume 4, Issue 10,   Pages 94-94

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Development Trends for China’s Instrumentation Engineering Science and Technology to 2035

Wang Xue and Zhang Li

Strategic Study of CAE 2017, Volume 19, Issue 1,   Pages 103-107 doi: 10.15302/J-SSCAE-2017.01.015

Abstract:

Instrumentation is the fundamental technology and essential equipment for intelligent manufacturing, scientific research, environmental monitoring, healthcare, national defense construction, and so forth. As an important support toward achieving a national innovation strategy, instrumentation development determines the level of strategic new industries, which include the innovative information industry, high-end equipment-manufacturing industry, energy industry, materials industry, and so forth. This paper analyzes development trends of instrumentation engineering science and technology to 2035. Within the requirements of digital, intelligent, and networked instruments, key technologies and future trends are depicted for three main aspects: intelligent instrumentation, medical instruments, and micro-electro-mechanical systems (MEMS). Development strategies and suggestions for China’s instrumentation engineering science and technology to 2035 are also put forward.

Keywords： instrumentation     intelligent instrumentation     medical instrument     MEMS     trend analysis    

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Ultra-low-power backscatter-based software-defined radio for intelligent and simplified IoT network Research Article

Huixin DONG, Wei KUANG, Fei XIAO, Lihai LIU, Feng XIANG, Wei WANG, Jianhua HE,huixin@hust.edu.cn,kuangwei@hust.edu.cn,feixiao@hust.edu.cn,isaacllh@hotmail.com,fengxiang@alumni.hust.edu.cn,weiwangw@hust.edu.cn,j.he@essex.ac.uk

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 1,   Pages 19-30 doi: 10.1631/FITEE.2100321

Abstract: The recent decade has witnessed an upsurge in the demands of intelligent and simplified Internet of Things (IoT) networks that provide ultra-low-power communication for numerous miniaturized devices. Although the research community has paid great attention to wireless protocol designs for these networks, researchers are handicapped by the lack of an energy-efficient software-defined radio (SDR) platform for fast implementation and experimental evaluation. Current SDRs perform well in battery-equipped systems, but fail to support miniaturized IoT devices with stringent hardware and power constraints. This paper takes the first step toward designing an that satisfies the ultra-low-power or even battery-free requirements of intelligent and simplified . To achieve this goal, the core technique is the effective integration of μW-level in our SDR to sidestep power-hungry active radio frequency chains. We carefully develop a novel circuit design for efficient energy harvesting and power control, and devise a competent solution for eliminating the harmonic and mirror frequencies caused by hardware. We evaluate the proposed SDR using different modulation schemes, and it achieves a high data rate of 100 kb/s with power consumption less than 200 μW in the active mode and as low as 10 μW in the sleep mode. We also conduct a case study of railway inspection using our platform, achieving 1 kb/s battery-free data delivery to the monitoring unmanned aerial vehicle at a distance of 50 m in a real-world environment, and provide two case studies on smart factories and logistic distribution to explore the application of our platform.

Keywords： Backscatter     Ultra-low-power SDR     IoT networks    

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100 Years of Gear Measurement Technology——Review & Prospect

Shi Zhaoyao,Fei Yetai,Xie Huakun

Strategic Study of CAE 2003, Volume 5, Issue 9,   Pages 13-17

Abstract:

The evolution of gear measurement technology in the past 100 years is fully reviewed, and 6 key issues related to gear metrology are listed. Emphases are laid on the development of gear measurement principles, the evolution of technical measures realizing them and the interpretation & utilization of measurement results. Meanwhile, the principle, configuration and features of present-day CNC Gear Measuring Center are introduced. A few of new phenomena in the field of gear measurement technology are remarked, and some research topics in the near future are proposed.

Keywords： gear     gear measurement     gear deviation     gear measuring instrument    

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A study on light-aging resistance of instrument panel materials and bumper materials on the automobile

Liu Qiang,Wang Wentao,Li Li,Li Huilian,Wang Jun,Jie Ganxin and Zhang Xiaodong

Strategic Study of CAE 2014, Volume 16, Issue 1,   Pages 99-102

Abstract: commonly used in the automobile industry is utilized to carry out light- aging research on automotive instrument

Keywords： automobile     IP materials     bumper materials     light- aging resistance     color difference     gloss    

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Short-term and impending precursor of sand layer stress in Wenchuan Earthquake

Wang Baoyu,Tong Xiaohui,Sun Xiaoming ,Sun Wei

Strategic Study of CAE 2009, Volume 11, Issue 6,   Pages 146-152

Abstract: earthquake preparation physical model was established based on observation data of sand layer stress instrumentin Changping and Xiji, Beijing, earthquake precursor in the past 30 years observed by this instrument2004.The short-term and impending precursor of Wenchuan Earthquake recorded by the sand layer stress instrument

Keywords： Wenchuan Earthquake     sand layer stress instrument     earthquake preparation physical model of sand layer    

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Technical advance and developmentof China geophysical equipment

Wang Tiejun,Hao Huimin,Li Guoqi,Luo Fulong,Tao Zhifei,Chen Lianqing,Hou Jinhai

Strategic Study of CAE 2010, Volume 12, Issue 5,   Pages 78-83

Abstract: For example, our seismic instrument has experienced its sixth upgrade.

Keywords： China petroleum industry     geophysical prospecting equipment     seismic instrument     vibrator     transportation    

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Crop damage monitoring using remote sensing in January and February in South China in 2008

Wu Bingfang,Li Qiangzi,Chi Yaobin,Huang Jinliang,Zhou Wancun,Zhang Weiqi,Wu Shuang

Strategic Study of CAE 2008, Volume 10, Issue 6,   Pages 63-69

Abstract:

The author monitored the crop damage using remote sensing combined with ground survey. First, the author extracted the snow disaster area using multi-phase BJ-1 multi-spectrum data and MODIS data. At same time, 3 ground teams were send to investigate the crop planting proportion and crop damage ratio. Then, crop damage area was calculated using arable area multiplied by crop planting proportion and crop damage ratio in this paper. The results showed that there were 429.76×104 hm2 crops were damaged in Jiangxi, Hubei, Hunan and Guizhou province. Ground survey showed that the main crop-damage area lied in winter wheat and seed rape planting area. The most serious area lied in high-elevate mountain area. For damaged crops, winter wheat was just affected a little because it was in greening stage, and seed rape was effected heavily for in flowing and jointing stage. In southern area of Jiangxi and Hunan province, crop damage area were very small because many cropland were in fallow.

Keywords： snow disaster     crop damage     remote sensing monitoring     GVG sampling instrument    

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Systematic engineering method for FY-3 satellite ground segment engineering

Dong Chaohua,Yang Zhongdong,Shi Jinming,Zhang Peng

Strategic Study of CAE 2013, Volume 15, Issue 10,   Pages 24-32

Abstract:

For application purpose, this paper gave an introduction on designing FY-3 function, planning the FY-3 satellite and the ground engineering system requirement as a whole with the systematic engineering method, reasonably locating the receiving stations, and scientifically allocating the task for each functional unit of the ground system, so that the ground application system was built with realization of optimized overall function and effectiveness.

Keywords： FY-3 satellite     instrument capability     ground segment system     systematic engineering     over all design    

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A Predictive Instrument for Sensitive and Expedited Measurement of Ultra-Barrier Permeation Article

Jianfeng Wanyan, Kun Cao, Zhiping Chen, Yun Li, Chenxi Liu, Runqing Wu, Xiao-Dong Zhang, Rong Chen

Engineering 2021, Volume 7, Issue 10,   Pages 1461-1470 doi: 10.1016/j.eng.2021.02.017

Abstract: through an ultra-barrier with extremely high sensitivity and a greatly reduced test period, a predictive instrument

Keywords： Water vapor permeation     Ultra-barrier     Predictive model     Quadrupole mass spectrometer    

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The feasibility of accurate earthquake prediction by HRT wave and examples of strong earthquakes including Wenchuan Earthquake （M ＝8）

Zhao Yulin and Qian Fuye

Strategic Study of CAE 2009, Volume 11, Issue 6,   Pages 111-122

Abstract:

The method of earthquake short-term and impending prediction by using tidal wave (abbr HRTwave method) is a new, quantitative technology of simultaneous determination of the location, magnitude and time of an earthquake.The earthquake preparation processes and precursor mechanism are considered as a "blackbox" .Using the modern control theory in system recognition, we can calibrate this "black box"  mathematically with different input and output parameters.We regard the tidal force as our "input signal"  while geoelectric response to the tidal forces is considered as an "output" .

Keywords： “black box”& HRT wave model     PS-100HRT instrument system     discovery of HRT wave precursor and its regularity    

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using densemultivariate label distribution Project supported by the National Key Scientific Instrument

Gao-li SANG,Hu CHEN,Ge HUANG,Qi-jun ZHAO

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 6,   Pages 516-526 doi: 10.1631/FITEE.1500235

Abstract: Accurate head poses are useful for many face-related tasks such as face recognition, gaze estimation, and emotion analysis. Most existing methods estimate head poses that are included in the training data (i.e., previously seen head poses). To predict head poses that are not seen in the training data, some regression-based methods have been proposed. However, they focus on estimating continuous head pose angles, and thus do not systematically evaluate the performance on predicting unseen head poses. In this paper, we use a dense multivariate label distribution (MLD) to represent the pose angle of a face image. By incorporating both seen and unseen pose angles into MLD, the head pose predictor can estimate unseen head poses with an accuracy comparable to that of estimating seen head poses. On the Pointing’04 database, the mean absolute errors of results for yaw and pitch are 4.01 and 2.13 , respectively. In addition, experiments on the CAS-PEAL and CMU Multi-PIE databases show that the proposed dense MLD-based head pose estimation method can obtain the state-of-the-art performance when compared to some existing methods.

Keywords： Head pose estimation     Dense multivariate label distribution     Sampling intervals     Inconsistent labels    

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Title Author Date Type Operation

An Ultrasonic Backscatter Instrument for Cancellous Bone Evaluation in Neonates

Chengcheng Liu,Rong Zhang,Ying Li,Feng Xu,Dean Ta,Weiqi Wang

Journal Article

Development and Creations of Measuring Instrument Transformers and Their Testing Equipment

Zhao Xiumin,Zhao Yitao

Journal Article

Instrument Industry Needs to Develop Ahead of Time

Journal Article

Development Trends for China’s Instrumentation Engineering Science and Technology to 2035

Wang Xue and Zhang Li

Journal Article

Ultra-low-power backscatter-based software-defined radio for intelligent and simplified IoT network

Huixin DONG, Wei KUANG, Fei XIAO, Lihai LIU, Feng XIANG, Wei WANG, Jianhua HE,huixin@hust.edu.cn,kuangwei@hust.edu.cn,feixiao@hust.edu.cn,isaacllh@hotmail.com,fengxiang@alumni.hust.edu.cn,weiwangw@hust.edu.cn,j.he@essex.ac.uk

Journal Article

100 Years of Gear Measurement Technology——Review & Prospect

Shi Zhaoyao,Fei Yetai,Xie Huakun

Journal Article

A study on light-aging resistance of instrument panel materials and bumper materials on the automobile

Liu Qiang,Wang Wentao,Li Li,Li Huilian,Wang Jun,Jie Ganxin and Zhang Xiaodong

Journal Article

Short-term and impending precursor of sand layer stress in Wenchuan Earthquake

Wang Baoyu,Tong Xiaohui,Sun Xiaoming ,Sun Wei

Journal Article

Technical advance and developmentof China geophysical equipment

Wang Tiejun,Hao Huimin,Li Guoqi,Luo Fulong,Tao Zhifei,Chen Lianqing,Hou Jinhai

Journal Article

Crop damage monitoring using remote sensing in January and February in South China in 2008

Wu Bingfang,Li Qiangzi,Chi Yaobin,Huang Jinliang,Zhou Wancun,Zhang Weiqi,Wu Shuang

Journal Article

Systematic engineering method for FY-3 satellite ground segment engineering

Dong Chaohua,Yang Zhongdong,Shi Jinming,Zhang Peng

Journal Article

A Predictive Instrument for Sensitive and Expedited Measurement of Ultra-Barrier Permeation

Jianfeng Wanyan, Kun Cao, Zhiping Chen, Yun Li, Chenxi Liu, Runqing Wu, Xiao-Dong Zhang, Rong Chen

Journal Article

The feasibility of accurate earthquake prediction by HRT wave and examples of strong earthquakes including Wenchuan Earthquake （M ＝8）

Zhao Yulin and Qian Fuye

Journal Article

using densemultivariate label distribution Project supported by the National Key Scientific Instrument

Gao-li SANG,Hu CHEN,Ge HUANG,Qi-jun ZHAO

Journal Article