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| 1 | SINS/CNS/GPS integrated navigation algorithm based on UKF显示文摘A new nonlinear algorithm is proposed for strapdown inertial navigation system (SINS)/celestial navigation system (CNS)/global positioning system (GPS) integrated navigation systems. The algorithm employs a nonlinear system error model which can be modified by unscented Kalman filter (UKF) to give predictions of local filters. And these predictions can be fused by the federated Kalman filter. In the system error model, the rotation vector is introduced to denote vehicle's attitude and has less variables than the quaternion. Also, the UKF method is simplified to estimate the system error model, which can both lead to less calculation and reduce algorithm implement time. In the information fusion section, a modified federated Kalman filter is proposed to solve the singular covariance problem. Specifically, the new algorithm is applied to maneuvering vehicles, and simulation results show that this algorithm is more accurate than the linear integrated navigation algorithm. | Haidong Hu Xianlin Huang | 2010 | Journal of Systems Engineering and Electronics2010，21，1： | 23 |
| 2 | Effect of modified Taohongsiwu decoction on patients with chemotherapy-induced hand-foot syndrome显示文摘OBJECTIVE:To observe the effect of the Traditional Chinese Medicine,modified Taohongsiwu decoction,versus pyridoxine on patients with hand-foot syndrome(HFS)from capecitabine,sorafenib,and gefitinib chemotherapy for gastric,lung,breast,colon,or rectal cancer.Also,to compare quality of life of patients in each group.METHODS:Patients were assigned randomly to group A or B.Group A was given modifiedTaohongsiwu decoction to soak hands and feet for 30 min,once daily.Group B was given 100 mg pyridoxine orally,twice daily.After a 2-week treatment,thetherapeutic effect was assessed by observing three major symptoms,including pain,ulceration,and muscular atrophy.This was assessed with the HFS-14 questionnaire.RESULTS:Significant differences were observed between the two groups in pain relief,and improvement of daily life,walking,and interpersonal communication(P<0.01).No significant differences in driving ability or interpersonal relationships were found.After 2 weeks,the effective rate was 88.3%in group A,which was significantly higher than the50%in group B(P=0.00).CONCLUSION:Modified Taohongsiwu decoction is effective in the treatment of patients with HFS.It improves patients'quality of life according to the HFS-14. | Changlin Zhao Jia Chen Bin Yu Xianlin Wu Congqi Dai Chang Zhou Xiaoyin Chen | 2014 | Journal of Traditional Chinese Medicine2014，34，1： | 18 |
| 3 | Distributed reinforcement learning to coordinate current sharing and voltage restoration for islanded DC microgrid显示文摘A novel distributed reinforcement learning(DRL)strategy is proposed in this study to coordinate current sharing and voltage restoration in an islanded DC microgrid.Firstly, a reward function considering both equal proportional current sharing and cooperative voltage restoration is defined for each local agent. The global reward of the whole DC microgrid which is the sum of the local rewards is regarged as the optimization objective for DRL. Secondly,by using the distributed consensus method, the predefined pinning consensus value that will maximize the global reward is obtained. An adaptive updating method is proposed to ensure stability of the above pinning consensus method under uncertain communication. Finally, the proposed DRL is implemented along with the synchronization seeking process of the pinning reward, to maximize the global reward and achieve an optimal solution for a DC microgrid. Simulation studies with a typical DC microgrid demonstrate that the proposed DRL is computationally efficient and able toprovide an optimal solution even when the communication topology changes. | Zifa LIU Ya LUO Ranqun ZHUO Xianlin JIN | 2018 | Journal of Modern Power Systems and Clean Energy2018，6，2： | 7 |
| 4 | PROFILE AND FLATNESS CONTROL SYSTEM IN 1700mm HOT STRIP MILLS OF ANSTEEL显示文摘Varying contact-length backup roll and linearly variable crown work roll are provided for improving the mill performance of profile and flatness control.Integrated with theses technologies, relevant profile and flatness control models are developed for hot strip mills on the basis of large amount of finite element calculation.These models include shape setup control model in process control system,bending force feedforward control model,crown feedback control model and flatness feedback control model in basis automation system.Such a profile and flatness control system with full functions is applied in 1700 mm industrial hot strip mills of Ansteel.Large amount of production data shows that the crown precision with the tolerance of±18μm is over 90%,the strip percentage which the actual flatness is within±25 I-unit surpasses 96%,and general roll consume is reduced by 28% by using the profile and flatness control system.In addition,schedule-free rolling is realized. | HE Anrui YANG Quan CHEN Xianlin ZHAO Lin | 2008 | Chinese Journal of Mechanical Engineering2008，21，3： | 6 |
| 5 | Significantly enhanced piezoelectric performance in Bi_(4)Ti_(3)O_(12)-based high-temperature piezoceramics via oxygen vacancy defects tailoring显示文摘Bismuth titanate (Bi_(4)Ti_(3)O_(12),BIT)piezoelectric materials have attracted increasing attention due to their high-temperature applications.However,it is quite challenging to simultaneously achieve outstanding piezoelectric properties and high Curie temperature in BIT-based systems.In this study,oxygen vacancy defects tailoring strategy was utilized to solve this problem,excellent piezoelectric coefficient(32.1 pC/N),and ultrahigh Curie temperature(659℃)are gotten in Bi_(4)Ti_(3)-x(Mn_(1/3)Nb_(2/3))xO_(12)(BTMN)ceramics,which are among the top values in the BIT-based ceramics.More importantly,the(Mn_(1/3)Nb_(2/3))(4+d)+complex-ion modified Bi_(4)Ti_(3)O_(12)-based ceramics are characterized with excellent piezoelectric stability up to 500℃(d33>30.0 pC/N at 500℃))and significantly reduced conductivity(only~10^(-7)U-1 cm^(-1)at 500℃).Moreover,enhanced ferroelectricity and good dielectric stability were also obtained.The better comprehensive properties can be ascribed to two aspects.First,the concentration of oxygen vacancy defects is obviously reduced,and their distribution is effectively controlled in BITMN ceramics.Second,the introduction of(Mn_(1/3)Nb_(2/3))^((4+δ)+)complex-ion gives rise to the antiphase boundaries and massive ferroelectric domain walls.This works not only reveal the high potential of BITMN ceramics for high-temperature piezoelectric applications but also deepen the understanding of the structure-properties relationship in BIT-based materials. | Xinchun Xie Zhiyong Zhou Ruihong Liang Xianlin Dong | 2021 | Journal of Materiomics2021，7，1： | 6 |
| 6 | Three-dimensional time-varying sliding mode guidance law against maneuvering targets with terminal angle constraint显示文摘This paper deals with the problem of intercepting maneuvering targets with terminal angle constraints for missiles subjected to three-dimensional non-decoupling engagement geometry.To achieve the finite-time interception and satisfactory overload characteristics, a time varying sliding mode control methodology is developed based on a time base generator function. The main feature of the proposed guidance law guarantees the Line-of-Sight(LOS) angles to converge to small neighborhoods of the desired values at the interception time. First, a fractional power extended state observer is used to estimate the unknown target acceleration, which can significantly reduce the adaptive switching gain. The fractional power extended state observer enjoys the advantage of better noise tolerance. Then, a newly designed sliding mode surface is constructed by introducing a time base generator function and the time-varying sliding mode guidance law is developed based on this time-varying sliding surface. The proposed guidance law significantly reduces the overload magnitudes. Numerical simulations are carried out to verify the performance of the proposed guidance law. | Xinxin WANG Hongqian LU Xianlin HUANG Yefeng YANG Zongyu ZUO | 2022 | Chinese Journal of Aeronautics2022，35，4： | 4 |
| 7 | First stirling-type cryocooler reaching lambda point of ~4He(2.17K) and its prospect in Chinese HUBS satellite project显示文摘The issue of 'missing baryons” is always an unsolved mystery in galaxy cosmology, and an important reason for the great uncertainty of the galaxies' formation and evolution. To find the 'missing' baryons, extra high-resolution spectral observation and imaging of the soft X-ray band (<1 kev) is required. However, the existing observation methods cannot meet this requirement. Therefore, Tsinghua University leads and proposes the Chinese 'Hot Universe Baryon Surveyor (HUBS)' satellite program. | Jue Wang Changzhao Pan Tong Zhang Kaiqi Luo Xiaotong Xi Xianlin Wu Jianpeng Zheng Liubiao Chen Junjie Wang Yuan Zhou Hai Jin Wei Cui | 2019 | Science Bulletin2019，64，4： | 3 |
| 8 | Acute Pancreatitis Complicated by Sheehan's Syndrome: A Case Report and Literature Review显示文摘A 44-year-old woman was transferred to the ICU of the First Affiliated Hospital of Jinan University for 2 days of persistent epigastric pain and 7 hours of unconsciousness.Her admission diagnosis was severe acute necrotizing pancreatitis(hypertriglyceridemia type)with multiple organ dysfunctions.The results of CT revealed a small area of necrotizing pancreatitis,which was not consistent with the severe clinical manifestations.Considering lack of hair and history of postpartum hemorrhage,hormone examination was carried out.According to the results of the examination,she was further diagnosed as Sheehan's syndrome and pituitary crisis.After hormone replacement therapy,her condition improved rapidly. | Dasheng Liu Li Liu Feng Gan Xianlin Wu Gang Ye | 2020 | Chinese Medical Sciences Journal2020，35，1： | 3 |
| 9 | Improvement on strip flatness of cold temper mills by modifying roll contour shape显示文摘A study on roll gap profile (strip profile) control was accomplished in a 1700 mm single-stand temper mill. Some critical problems such as the deviation of work roll contour caused by grinding and wear, the effectiveness of work roll bending were discussed. Using a finite element model, the effects of roll contours (ground and wear) on strip profile were investigated. The roll bending effect on strip thickness was also analyzed. It is pointed out that there are some special features of flatness control in the temper mill: during temper rolling, roll deformation is slight due to small rolling load, and the loaded roll gap profile mainly depends on work roll contour, while the backup roll has a little effect on gap crown; the effect of bending force on gauge can not be ignored due to the coupling between flatness control and gauge control. A new roll contour arrangement adaptable to the mill was presented and has been put into practical production. The application of the new set of rolls showed some good results: larger crown control range of work roll bender, higher rolling stability, better strip profile and flatness quality. | Xiaoyan Li Jie Zhang Xianlin Chen Jianguo Cao Haixia Li Mechanical Engineering School, University of Science and Technology Beijing, Beijing 100083, China | 2004 | Journal of University of Science and Technology Beijing2004，11，3： | 3 |
| 10 | Distributed Algorithm for Robust Resource Allocation with Polyhedral Uncertain Allocation Parameters显示文摘这份报纸在多面的不明确的分配参数下面与 nonsmooth 目的功能学习一个分布式的柔韧的资源分配问题。处于考虑分布式的柔韧的资源分配问题,(nonsmooth ) 客观功能是在一个多代理人网络分到代理人的本地凸的客观功能的和。每个代理人有一个私人可行集合并且决定一个本地变量,和所有本地变量被结合全球仿射的不平等限制,它服从于多面的不明确的参数。与凸的优化的两重性理论,作者导出柔韧的资源分配问题的一个柔韧的对应物。基于柔韧的对应物,作者建议一个新奇分布式的连续时间的算法,每个代理人仅仅在知道它的本地客观功能,本地无常参数,本地限制集合,和它的邻居信息。用微分包括的稳定性理论,作者证明算法能在一些温和条件下面发现最佳的答案。最后,作者给一个例子说明建议算法的功效。 | ZENG Xianlin YI Peng HONG Yiguang | 2018 | Journal of Systems Science & Complexity2018，31，1： | 3 |
| 11 | Evaluation of transgenic tobacco expressing two insecticidal genes to delay resistance development of Helicoverpa armigera显示文摘The resistance ratio of Helicoverpa armigera to Cry1Ac insecticidal protein from Bacillus thuringiensis (Bt) is 13.1- and 3.02-fold after 18 generations of selection by transgenic tobacco expressing Bt or two (Bt and CpTI) insecticidal protein genes, in which the average corrected mortality for each selection treatments is about 60% . The mortality of selected population by transgenic Bt gene tobacco is significantly lower than the control strain when fed | Jianzhou Zhao Yunliu Fan Xianlin Fan Xiping Shi Meiguang Lu | 1999 | Chinese Science Bulletin1999，44，20： | 3 |
| 12 | Attaining the liquid helium temperature with a compact pulse tube cryocooler for space applications显示文摘Recent breakthroughs in space science have motivated space exploration programs in many countries including China. Cryocoolers, which provide the mandatory low-temperature environment for many sensitive yet delicate space detectors, are crucial for the proper functioning of various systems. One benchmark for the cryocooler performance is attaining the liquid helium temperature. However, even with complex configurations and multiple driving sources, only a few cryocoolers to date can achieve this goal. Here we report a high-frequency pulse tube cryocooler(HPTC) driven by a single non-oil-lubrication compressor which is capable of reaching the liquid helium temperature while offering other advantages such as high compactness, excellent reliability and high efficiency. The HPTC obtains a no-load temperature of 4.4 K, which is the first realization of cooling below the4 He critical point with a gas-coupled two-stage arrangement. The prototype can provide a cooling power of 87 mW at 8 K, and 5.2 mW at 5 K with a 425 W input electric power, showing leading-level efficiency. Moreover, we demonstrate the ability of the cryocooler to simultaneously provide cooling power at different temperature levels to meet different requirements. Therefore, the prototype developed here could be a promising cryocooler for space applications and beyond. | LIU XuMing CHEN LiuBiao WU XianLin YANG Biao WANG Jue ZHU WenXiu WANG JunJie ZHOU Yuan | 2020 | Science China(Technological Sciences)2020，63，3： | 3 |
| 13 | Study on Federated Architecture for GPS/INS/TRN Integrated Navigation System显示文摘Based on the information fusion theory, a kind of integrated navigation system integration for cruise missile is presented in this paper. Besides, the way with which the system is integrated and the related data fusion technique are discussed. Information-fusion-based hybrid navigation system integration can fully utilize information provided by all kinds of navigation sensor subsystem and can improve the precision of the system effectively. Simultaneously, the reconstructing ability ensures the system of great reliability. | Wang, Yufei Huang, Xianlin Hu, Hengzhang | 2000 | Journal of Systems Engineering and Electronics2000，11，1： | 3 |
| 14 | Design and application of single-antenna GPS/accelerometers attitude determination system显示文摘In view of the problem that the current single-antenna GPS attitude determination system can only determine the body attitude when the sideslip angle is zero and the multiantenna GPS/SINS integrated navigation system is of large volume, high cost, and complex structure, this approach is presented to determine the attitude based on vector space with single-antenna GPS and accelerometers in the micro inertial measurement unit (MIMU). It can provide real-time and accurate attitude information. Subsequently, the single-antenna GPS/SINS integrated navigation system is designed based on the combination of position, velocity, and attitude. Finally the semi-physical simulations of single-antenna GPS attitude determination system and single-antenna GPS/SINS integrated navigation system are carried out. The simulation results, based on measured data, show that the single-antenna GPS/SINS system can provide more accurate navigation information compared to the GPS/SINS system, based on the combination of position and velocity. Furthermore, the single-antenna GPS/SINS system is characteristic of lower cost and simpler structure. It provides the basis for the application of a single-antenna GPS/SINS integrated navigation system in a micro aerial vehicle (MAV). | He Jie Huang Xianlin Wang Guofeng | 2008 | Journal of Systems Engineering and Electronics2008，19，2： | 3 |
| 15 | Timing decision-making method of engine blades for predecisional remanufacturing based on reliability analysis显示文摘A timing decision-making method for predecisional remanufacturing is presented.The method can effectively solve the uncertainty problem of remanufacturing blanks.From the perspective of reliability,this study analyzes the timing decision-making interval for predecisional remanufacturing of mechanical products during the service period and constructs an optimal timing model based on energy consumption and cost.The mapping relationships between time and energy consumption are predicted by using the characteristic values of performance degradation of products combined with the least squares support vector regression algorithm.Application of game theory reveals that when the energy consumption and cost are comprehensively optimal,this moment is the best time for predecisional remanufacturing.Used engine blades are utilized as an example to demonstrate the validity and effectiveness of the proposed method. | Le CHEN Xianlin WANG Hua ZHANG Xugang ZHANG Binbin DAN | 2019 | Frontiers of Mechanical Engineering2019，14，4： | 2 |
| 16 | An efficient route towards R-2-phenoxypropionic acid synthesis for biotransformative production of R-2-(4-hydroxyphenoxy)propionic acid显示文摘R2(4hydroxyphenoxy)propionic acid(RHPPA)is a key intermediate for the synthesis of classic herbicides with high selectivity against grassy weed.The main route for RHPPA biosynthesis is to hydroxylate the substrate R2phenoxypropionic acid(RPPA)at C4 position with microbes.In order to provide sufficient RPPA for the industrial production of RHPPA,an effective RPPA synthesis method was established and optimized in this work.The synthesis process mainly consisted of two steps:(1)synthesis of S2chloropropionic acid from Lalanine via diazotization and chlorination reactions;and(2)synthesis of RPPA from S2chloropropionic acid and phenol via etherification reaction.The optimal reaction conditions were as follows:HCl:NaNO_(2):KI:LAla=2.0:1.2:0.7:1.0(in molar),125℃reflux for 1.5 h,with KI as catalyst,and KI:S2chloropropionic acid:phenol=0.075:1.2:1.0(in molar).Under these conditions,an improved molar conversion rate(74.9%,calculated in phenol)was achieved.After extraction using anionic exchange resin Amberlite IRA400(CI),RPPA product with a purity of 95.08%was obtained.The purified RPPA was identified and evaluated in the application of the biotransformative production of RHPPA.The results indicated that the synthesized RPPA supported the RHPPA biosynthesis with a comparable yield as that of the standard RPPA.The RPPA synthesis method provided herein exhibited the advantages of low price and easy availability of raw materials,less toxicity of reagents,simple manipulations,and low equipment/instrument requirements. | Haiyan Zhou Yizuo Li Rui Jiang Xianlin Wang Yuanshan Wang Yaping Xue Yuguo Zheng | 2021 | Chinese Journal of Chemical Engineering2021，34，4： | 2 |
| 17 | Examining influence of violence against physicians on Chinese medical students' career choice显示文摘In recent years,'violent events against physicians' occurs frequently in China due to various reasons.They have been widely reported by Chinese and Intemational media.Lancet recently published a couple of articles,entitled 'Ending violence against doctors in China'1 in May 2012 and 'Appeal from Chinese doctors to end violence'2 in November 2013.In early 2014 the BBC produced two reports about violence against physicians in China,and the Times Weekly raised the question 'Why China's Doctors Are Getting Beat Up?',illustrating that engaging in frontline medical care in China is becoming a nightmare and disclosed the increasing harsh medical environment in China. | Han Xianlin Wang Yinong Zhao Jun Pan Hui Yu Jianchun | 2014 | Chinese Medical Journal2014，，24： | 2 |
| 18 | Ultra-small hollow ternary alloy nanoparticles for efficient hydrogen evolution reaction显示文摘Hollow nanoparticles with large specific surface area and high atom utilization are promising catalysts for the hydrogen evolution reaction(HER). We describe herein the design and synthesis of a series of ultra-small hollow ternary alloy nanostructures using a simple one-pot strategy. The same technique was demonstrated for hollow PtNiCu nanoparticles, hollow PtCoCu nanoparticles and hollow CuNiCo nanoparticles. During synthesis, the displacement reaction and oxidative etching played important roles in the formation of hollow structures. Moreover, our hollow PtNiCu and PtCoCu nanoparticles were single crystalline, with an average diameter of 5 nm. Impressively, ultra-small hollow PtNiCu nanoparticles,containing only 10% Pt, exhibited greater electrocatalytic HER activity and stability than a commercial Pt/C catalyst. The overpotential of hollow Pt Ni Cu nanoparticles at 10 mA cm^(-2) was 28 mV versus reversible hydrogen electrode(RHE). The mass activity was 4.54 A mg Pt^(-1) at-70 mV versus RHE, which is 5.62-fold greater than that of a commercial Pt/C system(0.81 A mg Pt^(-1)). Through analyses of bonding and antibonding orbital filling, density functional theory calculations demonstrated that the bonding strength of different metals to the hydrogen intermediate(H*) was in the order of Pt > Co > Ni > Cu. The excellent HER performance of our hollow PtNiCu nanoparticles derives from moderately synergistic interactions between the three metals and H*. This work demonstrates a new strategy for the design of low-cost and high-activity HER catalysts. | Zhenxing Li Chengcheng Yu Yikun Kang Xin Zhang Yangyang Wen Zhao-Kui Wang Chang Ma Cong Wang Kaiwen Wang Xianlin Qu Miao He Ya-Wen Zhang Weiyu Song | 2021 | National Science Review2021，8，7： | 2 |
| 19 | Impulsive controller design for nonlinear networked control systems with time delay and packet dropouts显示文摘The globally exponential stability of nonlinear impulsive networked control systems(NINCS) with time delay and packet dropouts is investigated.By applying Lyapunov function theory,sufficient conditions on the global exponential stability are derived by introducing a comparison system and estimating the corresponding Cauchy matrix.An impulsive controller is explicitly designed to achieve exponential stability and ensure state converge with a given decay rate for the system.The Lorenz oscillator system is presented as a numerical example to illustrate the theoretical results and effectiveness of the proposed controller design procedure. | Xianlin Zhao Shumin Fei Jinxing Lin | 2012 | Journal of Systems Engineering and Electronics2012，23，3： | 2 |
| 20 | Lyapunov stability and generalized invariance principle for nonconvex differential inclusions显示文摘这份报纸学习 nonconvex 的一个班的系统稳定性问题微分包括。起初,基本稳定性结果被优点获得局部地, Lipschitz 连续 Lyapunov 工作。而且,一个概括不变性原则和相关吸引力条件被建议并且证明了由于凸状的缺席克服技术困难。在技术分析,新奇珍视集合的衍生物被建议处理 nonsmooth 系统和 nonsmooth Lyapunov 功能。另外,获得的结果与在有常规 Lyapunov 功能的凸的微分包括的情况中的存在的一致。最后,解说性的例子被给显示出方法的有效性。 | Shu UANG Xianlin ZENG Yiguang HONG | 2016 | Control Theory and Technology2016，14，2： | 2 |
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