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| 1 | Reliable transmission of consultative committee for space data systems file delivery protocol in deep space communication显示文摘In consultative committee for space data systems(CCSDS) file delivery protocol(CFDP) recommendation of reliable transmission,there are no detail transmission procedure and delay calculation of prompted negative acknowledge and asynchronous negative acknowledge models.CFDP is designed to provide data and storage management,story and forward,custody transfer and reliable end-to-end delivery over deep space characterized by huge latency,intermittent link,asymmetric bandwidth and big bit error rate(BER).Four reliable transmission models are analyzed and an expected file-delivery time is calculated with different trans-mission rates,numbers and sizes of packet data units,BERs and frequencies of external events,etc.By comparison of four CFDP models,the requirement of BER for typical missions in deep space is obtained and rules of choosing CFDP models under different uplink state informations are given,which provides references for protocol models selection,utilization and modification. | Hui Li Hao Luo Faxin Yu Zheming Lu | 2010 | Journal of Systems Engineering and Electronics2010，21，3： | 7 |
| 2 | Characterization of event-related potentials in obsessive compulsive disorder patients: Comparison with depression and generalized anxiety disorder patients显示文摘BACKGROUND: Study results of event-related potential in obsessive compulsive disorder (OCD) remain controversial, potentially as a result of different instruments utilized and their differing technical characteristics. OBJECTIVE: To investigate the differences in several common event-related potentials, i.e. contingent negative variations, P300, and mismatch negativity (MMN), in OCD patients, depression patients, generalized anxiety disorder (GAD) patients, and healthy controls. DESIGN, TIME AND SETTING: A case-control study was performed in the Department of Electrophysiology, Shanghai Mental Health Center from May 2002 to December 2005. PARTICIPANTS: A total of 38 OCD patients, 20 depression patients, and 18 GAD patients, who were diagnosed according to the criteria of Chinese Classification of Mental Disorders (Version 3), formulated by the Chinese Psychiatry Association, were selected from the Outpatient Department o Shanghai Mental Health Center. Patients with two or more the above diseases were excluded. In addition, 28 healthy people, gender and age matched, were selected as controls. METHODS: Contingent negative variations, P300, and MMN were recorded by a Nicolet Spirit Instrument. All electrodes were attached at Cz according to the International 10-20 system, with the mastoid leads as reference and Fpz as ground. MAIN OUTCOME MEASURES: Amplitude and latency of contingent negative variations, P300, and MMN. RESULTS: The contingent negative variations, P300, and MMN were different (P < 0.01). OCD patients showed an increased M1 amplitude compared with controls, depression, and GAD patients (P < 0.01). Target P300 amplitudes were significantly lower in OCD, depression, and GAD patients compared with controls (P < 0.01). Moreover, N2 latency and latency of MMN were prolonged in OCD and depression groups compared with controls (P < 0.05). CONCLUSION: Event-related potentials were different in depression, GAD, and OCD patients and healthy controls. In particular, OCD patients exhibited unique characteristics. | Yingzhi Lu Wenbin Zong Hanzhen Dong Faxin Wang Jinyu PU Xingshi Chen Yunxiang Tang | 2010 | Neural Regeneration Research2010，5，12： | 5 |
| 3 | Primary Establishment of the Tissue Culture Technique and Regeneration System for Ornamental Lupinns polyphyllus显示文摘The purpose of this paper is to develop a system for tissue culture and rapid propagation of two ornamental lupins,Minaretie and Russell Prize. In view of screening out the better explant regeneration and suitable culture medium,through adding hormone 6-BA,NAA and 2,4-D into MS and B5 basic culture medium,a series of experiments were carried out with the shoot tips,leaves,leaf petioles and stems from the asepsis seedling. The results showed that the shoot tips had favorableness on the rapidly propagation;MS+6-BA 0.5 mg · L-1 for f irst generation,the induction rate of Minaretie and Russell Prize was 90.5% and 95.86% respectivdy;Minaretie had the highest propagation index(6.35) on MS+6-BA 0.5 mg · L-1+NAA 0 mg · L-1+GA 30.8 mg · L-1+AC 2 g · L-1,but Russell Prize had the highest propagation index(7.24) on MS+6-BA 0.5 mg · L-1+NAA 0.15 mg · L-1+GA3 1.0 mg · L-1+AC 0.5 g · L-1;1/2 MS+NAA 0.25 mg · L-1 was the best rooting medium. The ratios of getting roots of Minaretie and Russell Prize were 94.78% and 96.32%,respectively. | WANG Xiaoling GAO Zhu LIU Tengyun YU Faxin WANG Biqin | 2009 | Journal of Northeast Agricultural University(English Edition)2009，16，3： | 5 |
| 4 | Analysis of the electromechanical behavior of ferroelectric ceramics based on a nonlinear finite element model显示文摘A nonlinear finite element (FE) model based on domain switching was proposed to study the electromechanical behavior of ferroelectric ceramics. The incremental FE formulation was improved to avoid any calculation instability. The problems of mesh sensitivity and convergence, and the efficiency of the proposed nonlinear FE technique have been assessed to illustrate the versatility and potential accuracy of the said technique. The nonlinear electromechanical behavior, such as the hysteresis loops and butterfly curves,of ferroelectric ceramics subjected to both a uniform electric field and a point electric potential has been studied numerically. The results obtained are in good agreement with those of the corresponding theoretical and experimental analyses.Furthermore, the electromechanical coupling fields near (a) the boundary of a circular hole, (b) the boundary of an elliptic hole and (c) the tip of a crack, have been analyzed using the proposed nonlinear finite element method (FEM). The proposed nonlinear electromechanically coupled FEM is useful for the analysis of domain switching, deformation and fracture of ferroelectric ceramics. | Daining Fang Faxin Li A. K. Soh Tieqi Liu | 2005 | Acta Mechanica Sinica2005，21，3： | 3 |
| 5 | Performence analysis of a novel chip tracking loop used for regenerative pseudo-noise ranging clock recovery 显示文摘 | ZHANGg Chaojie JIN Xiaojun YU Faxin | 2007 | Journal of Southeast University2007，，15： | 1 |
| 6 | Experimental investigation of Z-pinch radiation source for indirect drive inertial confinement fusion显示文摘Z-pinch dynamic hohlraums(ZPDHs)could potentially be used to drive inertial confinement fusion targets.Double-or multishell capsules using the technique of volume ignition could exploit the advantages of ZPDHs while tolerating their radiation asymmetry,which would be unacceptable for a central ignition target.In this paper,we review research on Z-pinch implosions and ZPDHs for indirect drive targets at the Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics.The characteristics of double-shell targets and the associated technical requirements are analyzed through a one-dimensional computer code developed from MULTI-IFE.Some key issues regarding the establishment of suitable sources for dynamic hohlraums are introduced,such as soft X-ray power optimization,novel methods for plasma profile modulation,and the use of thin-shell liner implosions to inhibit the generation of prior-stagnated plasma.Finally,shock propagation and radiation characteristics in a ZPDH are presented and discussed,together with some plans for future work. | Zhenghong Li Zhen Wang Rongkun Xu Jianlun Yang Fan Ye Yanyun Chu Zeping Xu Faxin Chen Shijian Meng Jianmin Qi Qinyuan Hu Yi Qin Jiaming Ning Zhanchang Huang Linbo Li Shuqing Jiang | 2019 | Matter and Radiation at Extremes2019，4，4： | 1 |
| 7 | Mediation mechanism for consensus process in group decision making:identifying eval-uation divergence of a given alternative显示文摘 | Cheng Faxin Mei Qiang Wang Juan | | 0，，04： | 1 |
| 8 | Supervised Analysis of Hepatitis C Virus RNA-Positive Case Reporting in County-Level Hospitals--China,2013−2018显示文摘What is already known on this topic?To understand the status of the diagnosis and reporting of hepatitis C and standardize the reporting of hepatitis C cases in county-level hospitals,we conducted the first supervised analysis of hepatitis C cases in county-level hospitals in China from 2013 to 2018,covering all provincial-level administrative divisions(PLADs)except Tibet.What is added by this report?Through 6 years of supervision,we have obtained key data such as the nucleic acid detection rate and positive rate of hepatitis C virus(HCV)antibody positive cases in our county-level hospitals,the report rate and accuracy of HCV RNA positive cases,and standardized and improved the hepatitis C case reporting in countylevel hospitals to improve data quality and provide data support for the judgment and estimation of hepatitis C in China.What are the implications for public health practice?By strengthening the management and supervision of hepatitis C case reporting,the reporting rate and accuracy of HCV RNA positive cases in county-level hospitals in China had been greatly improved.By combining the number of HCV antibody tests and the number of viral nucleic acid tests in medical institutions around the country,it was possible to effectively assess the current status of hepatitis C in China and to provide a scientific basis for the development of hepatitis C prevention and treatment measures. | Faxin Hei Guowei Ding Shaodong Ye Hailiang Yu Lin Pang Zhongfu Liu | 2020 | China CDC weekly2020，2，31： | 1 |
| 9 | Preparation of Copper Arsenite and Its Application in Purification of Copper Electrolyte显示文摘 | Xiao Faxin Zheng Yajie WANG Yong | 2008 | Trans Nonferrous Met Soc China2008，，18： | 1 |
| 10 | Visualizing experimental investigation on gas-liquid replacements in a microcleat model using the reconstruction method显示文摘Cleats are the main channels for fluid transport in coal reservoirs.However,the microscale flow characteristics of both gas and water phases in primary cleats have not been fully studied as yet.Accordingly,the local morphological features of the cleat were determined using image processing technology and a transparent cleat structure model was constructed by microfluidic lithography using the multiphase fluid visualization test system.Besides,the effect of microchannel tortuosity characteristics on two‐phase flow was analyzed in this study.The results are as follows:(1)The local width of the original cleat structure of coal was strongly nonhomogeneous.The cleats showed contraction and expansion in the horizontal direction and undulating characteristics in the vertical direction.(2)The transient flow velocity fluctuated due to the structural characteristics of the primary cleat.The water‐driven gas interface showed concave and convex instability during flow,whereas the gas‐driven water interface presented a relatively stable concave surface.(3)The meniscus advanced in a symmetrical pattern in the flat channel,and the flow stagnated due to the influence of undulation points in a partially curved channel.The flow would continue only when the meniscus surface bypassed the stagnation point and reached a new equilibrium position.(4)Enhanced shearing at the gas-liquid interface increased the gas‐injection pressure,which in turn increased residual liquids in wall grooves and liquid films on the wall surface. | Shaojie Chen Jicheng Zhang Dawei Yin Faxin Li Jialin Lu Peiyang Zhu | 2023 | Deep Underground Science and Engineering2023，2，3： | 0 |
| 11 | Defluorination of bastnaesite by steam roasting process显示文摘The bastnaesite was defluorinated by steam roasting process,and fluorine was removed in the form of hydrogen fluoride to realize the separation from rare earth.The effects of particle size of raw material,roasting temperature and time on defluorination rate of bastnaesite were studied.The suitable conditions of steam roasting process are that the particle size of raw material is less than 74μm,the roasting temperature is 1000℃and the roasting time is 4 h.The defluorination rate of bastnaesite is close to 100%under above these conditions.When the temperature rises to 1000℃,the voids on the surface of the particles increase obviously,and there is a developed network of voids,which indicates that the fluorine oxides in bastnaesite react fully with the saturated water vapor at this stage,and a large amount of fluorine escapes in the form of hydrogen fluoride from the surface and inside of the mineral.X-ray diffraction results show that there are only rare-earth oxides in the form of Ce_(0.33)La_(0.33)Ca_(0.33)O_(1.5)and Ce_(7)O_(12)in the slag.The results of energy spectra and chemical analysis show that the fluorine in the baking sand was basically completely removed. | Shuchen Sun Ying Yang Ganfeng Tu Faxin Xiao | 2022 | Journal of Rare Earths2022，40，12： | 0 |
| 12 | B-PesNet: Smoothly Propagating Semantics for Robust and Reliable Multi-Scale Object Detection for Secure Systems显示文摘Multi-scale object detection is a research hotspot,and it has critical applications in many secure systems.Although the object detection algorithms have constantly been progressing recently,how to perform highly accurate and reliable multi-class object detection is still a challenging task due to the influence of many factors,such as the deformation and occlusion of the object in the actual scene.The more interference factors,the more complicated the semantic information,so we need a deeper network to extract deep information.However,deep neural networks often suffer from network degradation.To prevent the occurrence of degradation on deep neural networks,we put forth a new model using a newly-designed Pre-ReLU,which inserts a ReLU layer before the convolution layer for the sake of preventing network degradation and ensuring the performance of deep networks.This structure can transfer the semantic information more smoothly from the shallow to the deep layer.However,the deep networks will encounter not only degradation,but also a decline in efficiency.Therefore,to speed up the two-stage detector,we divide the feature map into many groups so as to diminish the number of parameters.Correspondingly,calculation speed has been enhanced,achieving a balance between speed and accuracy.Through mathematical demonstration,a Balanced Loss(BL)is proposed by a balance factor to decrease the weight of the negative sample during the training phase to balance the positives and negatives.Finally,our detector demonstrates rosy results in a range of experiments and gains an mAP of 73.38 on PASCAL VOC2007,which approaches the requirement of many security systems. | Yunbo Rao Hongyu Mu Zeyu Yang Weibin Zheng Faxin Wang Jiansu Pu Shaoning Zeng | 2022 | Computer Modeling in Engineering & Sciences2022，，9： | 0 |
| 13 | Numerical Analysis of the Influence of the Impinging Distance on the Scouring Efficiency of Submerged Jets显示文摘Water jet technology is widely used in submerged buried pipes as a non-traditional trenching process,often invol-ving a complex sediment response.An important adjustable and influential engineering variable in this technol-ogy is represented by the impinging distance.In this study,the FLOW-3D software was used to simulate the jet scouring of sand beds in a submerged environment.In particular,four sets of experimental conditions were con-sidered to discern the relationship between the maximum scour depth and mass and the impinging distance.As shown by the results,a critical impinging distance h0 exists by which the static scour depth can be maximized;the scour mass ratio between dynamic and static conditions decreases as the impinging distance increases.Moreover,the profile contours are similar when the erosion parameter Ec is in the range 0.35 | Hao Chen Xianbin Teng Zhibin Zhang Faxin Zhu Jie Wang Zhaohao Zhang | 2024 | Fluid Dynamics & Materials Processing2024，20，2： | 0 |
| 14 | Development of an Omni-Directional Shear Horizontal Wave Transducer Based on a Radially Poled Piezoelec trie Ring显示文摘For the inspection of large plate-like structures,the omni-directional guided wave transducer-based system has been regarded as an effective tool since only a few transducers are required to cover the entire inspection area without blind zones.In comparison with Lamb waves,the shear horizontal(SH)wave is more promising because its fundamental mode is non-dispersive.In this work,we proposed an omni-directional SH wave piezoelec trie t ransducer(OSH-PT)based on a radially poled d24-mode PZT ring.Eoth the finite element simulations and experiments were carried out to demonstrate its performance in generating and receiving SH°wave.Results showed that the radially poled OSH-PT could generate single-mode SHo wave and receive SHo wave only over a wide frequency range from 70 to 200 kHz.The obtained signal-to-noise ratio can reach up to 26 dB in generation and 24 dB in reception.The omni-directivity of this OSH-PT is also very good with the deviation only about 6%in both generation and reception of SHo wave.Considering its easy fabrication,low cost and superior performances,this proposed OSH-PT may promote the applications of SHo wave-based inspection in structural health monitoring and nondestructive testing. | Qiang Huan Mingtong Chen Ai-Kah Soh Faxin Li | 2019 | Acta Mechanica Solida Sinica2019，32，1： | 0 |
| 15 | Vibration analysis of atomic force microscope cantilevers in contact resonance force microscopy using Timoshenko beam model显示文摘Timoshenko beam model is employed to investigate the vibration of atomic force microscope(AFM)cantilevers in contact resonance force microscopy(CRFM).Characteristic equation with both vertical and lateral tip-sample contact is derived.The contact resonance frequencies(CRFs)obtained by the Timoshenko model are compared with those by the Euler-Bernoulli model.A method is proposed to correct the wave number obtained by the Euler-Bernoulli model.The forced vibration is compared between the two models.Results reveal that the Timoshenko model is superior to the Euler-Bernoulli model in predicting the vibration characteristics for cantilevers’higher eigenmodes. | Xilong Wen,Pengfei Li,Faxin | 2017 | Acta Mechanica Solida Sinica2017，30，5： | 0 |
| 16 | The Art of Chinese Tie-dye显示文摘Tie-dye is a traditional and ancient dyeing method in China. Cloth is tied with cotton or linen ropes and then dyed with different colors. Thanks to different ways of tying, finished fabrics show | Sun Faxin | 2010 | China & The World Cultural Exchange2010，76，2： | 0 |
| 17 | A unidirectional SH wave transducer based on phase-controlled antiparallel thickness-shear(d15)piezoelectric strips显示文摘In recent years,shear horizontal(SH)waves are being paid more and more attention to in structural health monitoring as it has only one displacement component.In this paper,a unidirectional SH wave transducer based on phase-controlled antiparallel thickness-shear(d15)piezoelectric strips(APS)is proposed.Here two pairs of identical APS were used each of which is a bidirectional SH wave transducer.By setting the interval between the two pairs of APS as 1/4 wavelength and the excitation delay between them as 1/4 period of the central operating frequency,unidirectional SH waves can be excited.Both finite element simulations and experiments were performed to validate the proposed design.Results show that SH0 waves were successfully excited only along one direction and those along the unwanted directions were suppressed very well.The proposed unidirectional SH wave transducer is very helpful to study the fundamentals and applications of SH waves. | Mingtong Chen Qiang Huan Faxin Li | 2020 | Theoretical & Applied Mechanics Letters2020，10，5： | 0 |
| 18 | Mutation analysis of KCNQ1, KCNH2, SCN5A, KCNE1 and KCNE2 genes in Chinese patients with long QT syndrome显示文摘Long QT syndrome(LQTS)is the prototype of the cardiac ion channelopathies,which cause syncope and sudden death.Inherited LQTS is represented by the autosomal dominant Romano-ward syndrome(RWS),which is not accompanied by congenital deafness,and the autosomal recessive Jervell and Lange-Nielsen syndrome(JLNS),which is accompanied by congenital deafness.The LQTS-causing mutations have been reported in patients and families from Europe,North America and Japan.Few genetic studies have been carried out in families with JLNS from China.This study investigates the molecular pathology in four families with LQTS(including a family with JLNS)in the Chinese population.Polymerase chain reaction and DNA sequencing were used to screen for KCNQ1,KCNH2,KCNE1,KCNE2 and SCN5A mutation.A missense mutation G314S in an RWS family was identified,and a single nucleotide polymorphism(SNP)G643S was indentified in the KCNQ1 of the JLNS family.In this JLNS family,another heterozygous novel mutation in exon 2a was found in KCNQ1 of the patients.Our data provide useful information for the identification of polymorphisms and mutations related to LQTS and the Brugada Syndrome(BS)in Chinese populations. | DU Rong TIAN Li YUAN Guohui LI Jin REN Faxin GUI Le LI Wei ZHANG Shouyan KANG Cailian YANG Junguo | 2007 | Frontiers of Medicine2007，1，3： | 0 |
| 19 | An energy-consistent fracture model for ferroelectrics显示文摘The fracture behavior of ferroelectrics has been intensively studied in recent decades, though currently a widely accepted fracture mechanism is still lacking. In this work, enlightened by previous experimental observations that crack propagation in ferroelectrics is always accompanied by domain switching, we propose a micromechanical model in which both crack propagation and domain switching are controlled by energy-based criteria. Both electric energy and mechanical energy can induce domain switching,while only mechanical energy can drive crack propagation.Furthermore, constrained domain switching is considered in this model, leading to the gradient domain switching zone near the crack tip. Analysis results show that stressinduced ferroelastic switching always has a toughening effect as the mechanical energy release rate serves as the driving force for both fracture and domain switching. In comparison, the electric-field-induced switching may have either a toughening or detoughening effect. The proposed model can qualitatively agree with the existing experimental results. | Hongchen Miao Faxin Li | 2017 | Acta Mechanica Sinica2017，33，1： | 0 |
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