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Analysis on the Trade Situation and Reasonable Import Scale of China’s Agricultural Products
Yang Liu, Qiyou Luo, Liyang Ma, Qing Zhang
Strategic Study of CAE 2018, Volume 20, Issue 5, Pages 128-134 doi: 10.15302/J-SSCAE-2018.05.019
To fully utilize both domestic and overseas markets and resources, which was put forward by the Party Central Committee and the State Council, it's of great significance to accurately analyze the trade situation of agricultural products in China and scientifically grasp the reasonable scale of the import of agricultural products. This paper analyzes the general situation changes and driving factors of China’s agricultural products trade after China’s entry into WTO, and probes into the current situation of China’s major agricultural products trade in terms of varieties and markets. Furthermore, we estimates the reasonable import scale of major agricultural products in 2025 and 2030, such as wheat, rice, corn, cotton, sugar, soybean, vegetable oil, pork, beef, mutton, poultry meat, and aquatic products. Policy proposals of ensuring the basic supply of grain and bulk agricultural products at home, adopting active import strategy, improving the international agricultural product market monitoring and import early-warning mechanism, and promoting the “going global” strategy of agriculture are put forward.
Unified construction of two n-order circuit networks with diodes Research Article
Xiaoyan LIN, Zhizhong TAN
Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 2, Pages 289-298 doi: 10.1631/FITEE.2200360
Keywords： Complex networks Equivalent transform Nonlinear difference equation Equivalent resistance
Developing China's Auto Industry Through the “CHERY” Pattern
Jin Lüzhong
Strategic Study of CAE 2004, Volume 6, Issue 9, Pages 9-13
Only a few years since its founding, CHERY has not only developed 4 new style cars, part of which are exported, through its efforts, but also been the first car enterprise that establishes car joint venture abroad. That is the road for developing China's auto industry. The government should support such auto enterprises as CHERY, GEELY and HAFEI, which take the road of self-reliance development and proprietary innovation. Preferential policies should be given to them so that they can grow bigger and stronger.
Keywords： auto industry the CHERY pattern self-reliance development preferential policy
Improving entity linking with two adaptive features Research Article
Hongbin ZHANG, Quan CHEN, Weiwen ZHANG
Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 11, Pages 1620-1630 doi: 10.1631/FITEE.2100495
(EL) is a fundamental task in natural language processing. Based on neural networks, existing systems pay more attention to the construction of the , but ignore latent semantic information in the and the acquisition of effective information. In this paper, we propose two , in which the first adaptive feature enables the local and s to capture latent information, and the second adaptive feature describes effective information for embeddings. These can work together naturally to handle some uncertain information for EL. Experimental results demonstrate that our EL system achieves the best performance on the AIDA-B and MSNBC datasets, and the best average performance on out-domain datasets. These results indicate that the proposed , which are based on their own diverse contexts, can capture information that is conducive for EL.
Keywords： Entity linking Local model Global model Adaptive features Entity type
Advance in FCC Process Reaction Chemistry
Xu Youhao and Wang Xieqing
Strategic Study of CAE 2007, Volume 9, Issue 8, Pages 6-14
Faced the stringent challenge of FCC process, the multi-dimensional reaction structure was proposed for FCC process reaction chemistry. The multi-dimension reaction structure mode was established on the basis of hydrocarbon reaction chemistry over acid catalyst, but the former was different from the latter. FCC process with multi-dimensional reaction structure has more production modes. The multi-dimensional reaction structure was used to successfully develop MIP process aiming at maximizing iso-paraffins in cracked naphtha and MIP-CGP process aiming at cleaner gasoline and more propylene.
Keywords： catalytic cracking reaction chemistry catalyst two different reaction zones multi--dimensional reaction structure
Saeed KHORASHADIZADEH, Mohammad-Hassan MAJIDI
Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 9, Pages 1180-1190 doi: 10.1631/FITEE.1601814
In this study, a new controller for chaos synchronization is proposed. It consists of a state feedback controller and a robust control term using Legendre polynomials to compensate for uncertainties. The truncation error is also considered. Due to the orthogonal functions theorem, Legendre polynomials can approximate nonlinear functions with arbitrarily small approximation errors. As a result, they can replace fuzzy systems and neural networks to estimate and compensate for uncertainties in control systems. Legendre polynomials have fewer tuning parameters than fuzzy systems and neural networks. Thus, their tuning process is simpler. Similar to the parameters of fuzzy systems, Legendre coefficients are estimated online using the adaptation rule obtained from the stability analysis. It is assumed that the master and slave systems are the Lorenz and Chen chaotic systems, respectively. In secure communication systems, observer-based synchronization is required since only one state variable of the master system is sent through the channel. The use of observer-based synchronization to obtain other state variables is discussed. Simulation results reveal the effectiveness of the proposed approach. A comparison with a fuzzy sliding mode controller shows that the proposed controller provides a superior transient response. The problem of secure communications is explained and the controller performance in secure communications is examined.
Keywords： Observer-based synchronization Chaotic systems Legendre polynomials Secure communications
Liu Li,Wu Chunlin,Hu Yajun
Strategic Study of CAE 2015, Volume 17, Issue 6, Pages 31-35
Objective：To find out the general clinical characteristics from patients with normal ovulation，small follicular ovulation and luteinized unruptured follicle and observe the result of ovulation detection repeatedly and the effect of ovarian stimulatioin for later two types. Methods：Retrospective analyzing the difference of the patients’age，basal serum gonadal steroid hormones and follicle size before ovulation in the groups of normal ovulation（n=258）， small follicular ovulation（n=65）and luteinized unruptured follicle（n=27）. Then we observed the result of ovulation detection repeatedly by transvaginal ultrasound in the latter two groups. Finally，the ovulation induction with clomiphene citrate was carried out in the 58 cases of small follicles ovulation and 25 cases of luteinizing unruptured follicle which obtained the consistent results during the twice ovulation detection，we observed the rates of normal ovulation and clinical pregnancy in the two types of ovulatory dysfunctions. Results：Average age and basal serum Gonadal steroid hormones levelsdid not have significant difference（P<0.01）in thegroups of normal ovulation，small follicular ovulation and luteinized unruptured follicle，average diameter of follicles before ovulation in the three groups had significant difference（F=117.9，P< 0.01）. Incidence rates of small follicular ovulation and luteinized unruptured follicle were 18.5 % and 7.71 % respectively. Both were detected repeatedly，repetition rates were 89.23 % and 92.59 % respectively. After combined induced ovulation by clomiphene withluteal support， normal ovulation rates were 70.69 % and 80 % in the groups of small follicular ovulation and unruptured follicle ovulation luteinized respectively，clinical pregnancy rateswere 29.31 % and 48 % respectively. Conclusions：Small follicular ovulation and luteinized unruptured follicle are two special types of ovulatory dysfunctions，basal serum gonadal steroid hormones levels cannot predict ovulation，and transvaginal ultrasound is the most direct method to diagnosisthe small follicular ovulation and luteinized unruptured follicle. Without treatment，the repetition rate is high in thetwo types of ovulatory dysfunctions. Combined induced ovulation withluteal support is effective in the patients of the small follicular ovulation and luteinized unruptured follicle.
Keywords： transvaginalultrasound ovulation detection small follicular ovulation luteinized unruptured follicle ovulation induction
Ping Sheng
Engineering 2021, Volume 7, Issue 5, Pages 552-553 doi: 10.1016/j.eng.2021.02.003
Chen Xiaohong
Strategic Study of CAE 2013, Volume 15, Issue 11, Pages 87-91
The research did in-depth analysis on the strategic planning of the construction of "Two-Oriented Society" and ecological civilization made by the 18th CPC National Congress, elaborated the internal connections between the construction of ecological civilization and " Two-Oriented Society", described the practice and achievements of promoting the construction of ecological civilization using "Two-Oriented Society" as the main focus in the Comprehensive Coordinated Reform Trial Areas of the"Two-Oriented Society "in Chang-Zhu-Tan City Cluster. Based on this, the research pointed out structural and institutional obstacles and problems in further promoting the construction of "Two-Oriented Society" and ecological civilization. Finally,focusing on reform and innovation,the research provided suggestions to deepen the reform of the construction of "Two-Oriented Society" and ecological civilization in four aspects,such as dividend of institution,dividend of nomocracy, dividend of development and dividend of market.
Keywords： ecological civilization Two-Oriented Society reform and innovation
Guofang Pang, Qiaoying Chang, Ruobin Bai, Chunlin Fan, Zijuan Zhang, Hongyuan Yan, Xingqiang Wu
Engineering 2020, Volume 6, Issue 4, Pages 432-441 doi: 10.1016/j.eng.2019.08.008
In this paper, we report the construction of two accurate mass databases and the development of a combination detection method that simultaneously screens for 733 pesticide and chemical contaminant multi-residues via high-throughput liquid chromatography (LC)– and gas chromatography (GC)–quadru pole-time-of-flight mass spectrometry (Q-TOFMS). This work demonstrates that electronic mass spectral standards may replace chemical-source standard materials as references through one sample preparation and the combination of GC/LC–Q-TOFMS screening. This cutting-edge technique has also replaced multiresidue determination using targeted detection with non-targeted screening. The pesticide residue types, sensitivity, recovery, and reproducibility of this combination technique are evaluated in eight fruit and vegetable matrices. This technique shows three advantages: ① In comparison with the discovery capability of a single technique, the combination technique shows an improvement of 51.1% (GC–QTOFMS) and 39.6% (LC–Q-TOFMS), respectively; ② the combination technique can satisfy a screening limit lower than 10 μg·kg−1 and meet the requirements of "uniform standards," although some of the pesticide residues could be optimized to further improve screening sensitivity; ③ over 488 pesticides with recoveries between 60%–120% and relative standard deviation (RSD) < 20% at a spiked level of 10 μg·kg−1 were detected with the combination technique in eight different matrices. From 2012 to 2017, this combination technique was applied in an investigation to screen pesticide residues from 1384 sampling locations for 38 138 batched samples covering 18 categories and 134 types of fruits and vegetables obtained from across the mainland of China. After statistical analysis, 533 pesticides in 115 891 determinations were detected, and the regularity of pesticides in the fruits and vegetables sold on the Chinese market was shown.
Keywords： Pesticide multi-residues GC–Q-TOFMS LC–Q-TOFMS Accurate mass database Spectra library Fruits and vegetables
Performance analysis of two EM-based measurement bias estimation processes for tracking systems None
Zhi-hua LU, Meng-yao ZHU, Qing-wei YE, Yu ZHOU
Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 9, Pages 1151-1165 doi: 10.1631/FITEE.1800214
In target tracking, the measurements collected by sensors can be biased in some real scenarios, e.g., due to systematic error. To accurately estimate the target trajectory, it is essential that the measurement bias be identified in the first place. We investigate the iterative bias estimation process based on the expectation-maximization (EM) algorithm, for cases where sufficiently large numbers of measurements are at hand. With the assistance of extended Kalman filtering and smoothing, we derive two EM estimation processes to estimate the measurement bias which is formulated as a random variable in one state-space model and a constant value in another. More importantly, we theoretically derive the global convergence result of the EM-based measurement bias estimation and reveal the link between the two proposed EM estimation processes in the respective state-space models. It is found that the bias estimate in the second state-space model is more accurate and of less complexity. Furthermore, the EM-based iterative estimation converges faster in the second state-space model than in the first one. As a byproduct, the target trajectory can be simultaneously estimated with the measurement bias, after processing a batch of measurements. These results are confirmed by our simulations.
Keywords： Non-linear state-space model Measurement bias Extended Kalman filter Extended Kalman smoothing Expectation-maximization (EM) algorithm
Hu Yongjun, Wu Jian, Hu Ruishan
Strategic Study of CAE 2019, Volume 21, Issue 5, Pages 151-158 doi: 10.15302/J-SSCAE-2019.05.004
The “two mountain” theory (i.e., lucid waters and lush mountains are invaluable assets) is the core concept for ecological civilization construction in China, and it will guide the development of ecological civilization throughout the country for a long time.This paper aims to provide paths and models for ecological civilization construction and rural revitalization, thus to enrich the “two mountains” theory. The economic growth theory and the externality theory are applied to analyze the core logic for realizing the value of ecological products and the internal logic of green growth, and the basic routes for “two mountains” practices are proposed. The core logic for realizing the value of ecological products is to guide and standardize the ecologization of economic subjects in the micro level, and the main paths include collecting ecological tax and dues, building up eco-market, taking ecological compensation, and establishing a green financial market. The internal logic of regional green growth is a positive cycle of transformation, coordination, and feedback between the ecology and “space–industry–main body”, and the main paths include space planning, ecological construction, ecological beautification, ecological industry, ecologization of traditional industry, high-end industry, ecological culture,ecological system, and ecological technology. This study is hoped to provide a reference for the top-level framework and development models for national ecological civilization construction and rural revitalization.
Keywords： ecological civilization construction “two mountains” theory logic path
Research on two typical intense current self-pinching diodes
Yang Hailiang,Qiu Aici,Sun Jianfeng,Gao Yi,Su Zhaofeng,Li Jingya,Sun Fengju,Liang Tianxue,Yin Jiahui,Cong Peitian,Huang Jianjun,Ren Shuqing
Strategic Study of CAE 2009, Volume 11, Issue 11, Pages 70-78
Structures of several types of intense pinching diodes were introduced. The latest simulation and experiment results on rod pinch focusing diodes were introduced. Experimental researches were carried out on FLASH Ⅱ and 2 MV pulsed power drivers. The voltage of RPD is 1.8~2.1 MV, the current is 40~60 kA, the FWHM is 50~60 ns. The X-ray dose at 1 m from the diode in the forward direction was about 20~30 mGy. The spot diameter was about 1 mm, the maximum energy was 1.8 MeV. The preliminary research results for generation and application of high power ion beam (HPIB) on the FLASH Ⅱaccelerator were reported. The structure and principle of pinch reflex ion beam diode were introduced. The HPIB peak current of ~160 kA is obtained with a peak energy of ~500 keV. The experimental investigations of generating 6~7 MeV quasi-monoenergetic pulsed γ-rays with high power ion (proton) beams striking 19F target are presented. In addition, the research results for thermal-mechanical effects on the material irradiated with HPIB applied to simulation X-ray were also discussed.
Keywords： rod-pinch diode ion beam diode X-ray high power ion beam pinch focus
Bin-bin LEI,Xue-chao DUAN,Hong BAO,Qian XU
Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 6, Pages 587-602 doi: 10.1631/FITEE.1601019
Keywords： Interval type-2 fuzzy controller Analytical structure Karnik-Mendel type reducer
The Effect of “Star-Bombs” Undertaking on the Social Development of China
Miao Dongsheng
Strategic Study of CAE 2004, Volume 6, Issue 7, Pages 14-20
This paper holds that “Star-Bombs” undertaking has influenced the social development of China in five aspects： providing a peaceful international environment for domestic construction; capturing the central height of developing new technology; protruding tremendous economic-social values; breeding a precious national spirit; winning the international standing essential for building new order of international relations.
Keywords： “Star-Bombs” undertaking space science and technology exploiting outer space game in common wins
Title Author Date Type Operation
Analysis on the Trade Situation and Reasonable Import Scale of China’s Agricultural Products
Yang Liu, Qiyou Luo, Liyang Ma, Qing Zhang
Journal Article
Unified construction of two n-order circuit networks with diodes
Xiaoyan LIN, Zhizhong TAN
Journal Article
Improving entity linking with two adaptive features
Hongbin ZHANG, Quan CHEN, Weiwen ZHANG
Journal Article
Synchronization of two different chaotic systems using Legendre polynomials with applications in secure communications
Saeed KHORASHADIZADEH, Mohammad-Hassan MAJIDI
Journal Article
Ovulation detection by transvaginal ultrasound and ovulation induction for two types of ovulation disorder
Liu Li,Wu Chunlin,Hu Yajun
Journal Article
The practice and reflection on promoting ecological civilization construction by deepening the reform of construction of“Two-Oriented Society”
Chen Xiaohong
Journal Article
Simultaneous Screening of 733 Pesticide Residues in Fruits and Vegetables by a GC/LC-Q-TOFMS Combination Technique
Guofang Pang, Qiaoying Chang, Ruobin Bai, Chunlin Fan, Zijuan Zhang, Hongyuan Yan, Xingqiang Wu
Journal Article
Performance analysis of two EM-based measurement bias estimation processes for tracking systems
Zhi-hua LU, Meng-yao ZHU, Qing-wei YE, Yu ZHOU
Journal Article
Internal Logic and Development Path of the“Two Mountains” Theory for Ecological Civilization Construction
Hu Yongjun, Wu Jian, Hu Ruishan
Journal Article
Research on two typical intense current self-pinching diodes
Yang Hailiang,Qiu Aici,Sun Jianfeng,Gao Yi,Su Zhaofeng,Li Jingya,Sun Fengju,Liang Tianxue,Yin Jiahui,Cong Peitian,Huang Jianjun,Ren Shuqing
Journal Article
Derivation and analysis on the analytical structure of interval type-2 fuzzy controller with two nonlinear fuzzy sets for each input variable
Bin-bin LEI,Xue-chao DUAN,Hong BAO,Qian XU
Journal Article
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