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Recent progress on preparation and applications of layered double hydroxides

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Chinese Chemical Letters 2022年第10期33卷 4428-4436页

作者： Mengting Duan Shanjing Liu Qiming jiang Xingmei Guo junhao Zhang Shenglin Xiong School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China Key Laboratory of Colloid and Interface Chemistry Ministry of Educationand School of Chemistry and Chemical EngineeringShandong UniversityJi'nan 250100China

The properties of layered double hydroxides(LDHs),including the adjustability of cations in host layers,exchangeability of anions between layers,and tunability of the crystal structure,render them unique characteristics in preparation and applications.Relating to the structural characteristics of LDHs,this work analyzes the research status,advantages and disadvantages of the synthetic methods for LDHs,including hydrothermal,electrodeposition,co-precipitation and anion exchange methods.In addition,the application status and prospects are reviewed,such as photo/electrocatalysis,electrochemical energy storage,magnetic materials,pollutant adsorption,and other fields.Lastly,the critical issues and solutions in the developing process of LDHs are analyzed and proposed.

关键词： Layered double hydroxides Anion exchangeability Structural adjustability Performance tunability

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驾驶机器人转向操纵的动态模型预测控制方法

上海交通大学学报 2022年第5期56卷 594-603页

作者：姜俊豪陈刚南京理工大学机械工程学院南京210094

为实现驾驶机器人对试验车辆进行精确的转向操纵,提出了一种驾驶机器人转向操纵的动态模型预测控制方法.建立了驾驶机器人与被操纵车辆的耦合动力学模型,并对耦合模型的可控性进行判别.利用卡尔曼滤波器对耦合模型进行状态估计,并结合... 详细信息

为实现驾驶机器人对试验车辆进行精确的转向操纵,提出了一种驾驶机器人转向操纵的动态模型预测控制方法.建立了驾驶机器人与被操纵车辆的耦合动力学模型,并对耦合模型的可控性进行判别.利用卡尔曼滤波器对耦合模型进行状态估计,并结合估计状态设计了模型预测控制器.将最小二乘法用于路径曲率与预测时域的非线性关系的拟合,设计了具有可变预测时域的动态模型预测控制器.进行了不同驾驶工况下的驾驶机器人转向操纵仿真与试验,研究结果表明了所提方法的有效性.

关键词：驾驶机器人转向操纵卡尔曼滤波器预测时域动态模型预测控制

Comparative Study of Changes in Stress-drop of the Jinggu MS6.6 and Ludian MS6.5 Earthquake Sequences

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Earthquake Research in China 2017年第2期31卷 151-168页

作者： Zhou Shaohui jiang Haikun Qu junhao Earthquake Administration of Shandong Province Jinan 250102 China China Earthquake Networks Center Beijing 100045 China

The earthquake stress-drop values of two sequences were accurately calculated after taking away the effects due to regional earthquake anelastic attenuation and station site response,using waveform data and seismic phase data of sequences of the Jinggu M_S6. 6,and Ludian M_S6. 5 earthquakes in Yunnan. These results show that the stress drop with magnitude increases within the scope of this study of magnitude. After eliminating the influence of the magnitude,the average value of stress-drop in the Jinggu sequence is higher than that of the Ludian sequence at the same magnitude range. This may be related to the stress state in different regions. In terms of the changes of time and space of stress-drop,before M_S5. 8 strong aftershock,the stress-drop is "slowing down-turning up-keeping a high value"after the mainshock,meanwhile,almost all of the abnormally high stress drop value is distributed around the M_S5. 8 strong aftershock, showing that the stress environment in the region was increasing after the mainshock. And after the M_S5. 9 strong aftershock,stress-drop rapidly declines to a relatively stable state,meanwhile,the high value of stress-drop is distributed around the strong aftershock,showing that the regional tectonic stress gets more fully release,its stress environment begins to rapidly decrease.For the Ludian sequence without a strong aftershock occurring,the average value of stress drop is lower than that of the Jinggu earthquake sequence at the same magnitude range,while at the same time,the stress-drop of the aftershock sequence almost hasn't changed much. In the time after the mainshock,combined with the release characteristics of the main energy,the stress in the region is excessively released,the subsequent stress in the region gradually returns to normal. This may be the reason why the activity of Ludianaftershocks significantly was weaker and subsequently there were no strong aftershocks occurred.

关键词：地震序列应力降区域构造应力时间序列应力状态应力环境非弹性衰减强余震

Platform Attitude Measurement Technology by Single Antenna Navigation Receiver Fused with Electronic Reconnaissance DF

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Platform Attitude Measurement Technology by Single Antenna N...

清代前中期的苏州道教以苏州玄妙观为中心的探讨

第十三届中国卫星导航年会

作者： Rong Shi junhao Chen jiang Liu Science and Technology on Electronic Information Control Laboratory

Accurate attitude measurement on the electronic reconnaissance aircraft, ship and other platform is the necessary prerequisite for electronic reconnaissance tasks. The traditional method depends on the inertial navigation or GNSS attitude instrument with multi antennas. In addition, for platforms with the electronic reconnaissance and DF（Direction Finding） equipment, their DF capability can be fully utilized. Through the phase difference measurement among signals in interferometer channels based on codeless phase discrimination in frequency domain, combined with the positioning and velocity measurement results from the single antenna satellite navigation receiver, and using the Doppler frequency shift difference of each navigation signal to realize signal separation and direction matching, three attitude parameters of the platform, such as heading, pitch and roll angle can be measured. Finally, the correctness and effectiveness of this method are verified by the analysis and processing on the actual signal from the electronic reconnaissance receiver. This method makes full use of the functionality of the existing hardware platform. It does not add new hardware modules, and only needs to be upgraded in the software. So it explores a new way for the attitude measurement on the electronic reconnaissance platform.

关键词： Single Antenna Navigation Receiver Electronic Reconnaissance Direction Finding By Interferometer Platform Attitude Measurement Doppler Frequency Difference Codeless Phase Discrimination In Frequency Domain

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中国道教 2018年第6期 32-36页

作者：江俊皓扬州大学社会发展学院

苏州是清代江南地区的经济、文化中心之一。清代前中期,道教在苏州地区的发展有何特点,又是如何进一步融入当地社会生活的,相关研究较少。从现存清代苏州道教碑刻资料中,可窥清代前中期苏州道教发展状况之一二。

关键词：苏州地区清代道教中期江南地区文化中心社会生活碑刻资料

The interaction effect between advanced paternal age and paternal obesity is associated with the low implantation rate in couples with unexplained recurrent pregnancy loss

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Gynecology and Obstetrics Clinical Medicine 2021年第4期1卷 197-204页

作者： Shuo Li Yaqian Shen Yueting Zhu Hongchang Li Wenjie jiang junhao Yan Zi-jiang Chen Center for Reproductive Medicine Cheeloo College of MedicineShandong UniversityJinanShandong250012China Key Laboratory of Reproductive Endocrinology of Ministry of Education Shandong UniversityJinanShandong250012China Shandong Key Laboratory of Reproductive Medicine JinanShandong250012China Shandong Provincial Clinical Research Center for Reproductive Health JinanShandong250012China National Research Center for Assisted Reproductive Technology and Reproductive Genetics Shandong UniversityJinanShandong250012China Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics Shanghai200135China Center for Reproductive Medicine Ren Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200135China

Objective:To explore the roles of advanced paternal age(APA)and abnormal paternal weight on embryo quality and pregnancy outcomes for unexplained recurrent pregnancy loss(uRPL)couples who underwent preimplantation genetic testing for aneuploidies(PGT-A).Methods:This study included 779 uRPL couples who underwent their first PGT-A cycles between 2014 and 2018.Male patients’aging and nutritional status were quantified by paternal age and body mass index(BMI).Routine semen parameters and sperm DNA fragmentation index(DFI)were used to reflect the seminal quality.Blastocyst formation rate and aneuploidy rate were used to reflect the embryo quality.Cycle cancellation rate,implantation rate,pregnancy loss rate,and live birth rate were measured to evaluate the treatment efficiency from IVF.To remove the interference of maternal age,only the women younger than 38 years old were included.After univariate screening,interaction tests were performed in a generalized linear model(GLM)to further examine the effects of paternal age and BMI on each outcome indicator.Results:In the total population(779 cycles),there were no statistical differences in aneuploidy rate,cycle cancellation rate,implantation rate,pregnancy loss rate,and live birth rate,whether stratified by paternal age or paternal BMI.Similar results occurred in the younger men(<40 y.o.,633 cycles).Conversely,among the men with advanced age(≥40 y.o.,146 cycles),there were statistical differences between the three BMI groups in four semen parameters(total sperm number,total motility,progressive motility,and total motile sperm count),implantation rate,and live birth rate.After interaction testing,the results of GLM suggested that the interaction effect between APA and paternal obesity was associated with the low implantation rate of uRPL couples.Conclusions:For the uRPL couples seeking for PGT-A treatment,if the male patients have both advanced age and obesity,their spouses are at higher risks for embryo implantation failure.

关键词： Advanced paternal age Implantation rate Live birth rate Obesity Preimplantation genetic test Unexplained recurrent pregnancy loss

Pharmacogenetic study of Asn680Ser and-29A>G in FSHR gene in Chinese women undergoing controlled ovarian hyperstimulation

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Journal of Bio-X Research 2018年第3期1卷 147-152页

作者： Xiaohe Sun Tianxiang Ni Guangyu Li Jingjing jiang junhao Yan Zi-jiang Chen Center for Reproductive Medicine Shandong UniversityThe Key Laboratory of Reproductive Endocrinology(Shandong University)Ministry of EducationShandong Provincial Key Laboratory of Reproductive Medicine National Research Center for Assisted Reproductive Technology and Reproductive Genetics JinanShandong Province Center for Reproductive Medicine Renji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai Key Laboratory for Assisted Reproduction and Reproductive GeneticsShanghai Assisted Reproduction Unit Department of Obstetrics and GynecologySir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityKey Laboratory of Reproductive Dysfunction Management of Zhejiang ProvinceHangzhouZhejiang ProvinceChina

The outcome of controlled ovarian hyperstimulation(COH)is various and unpredictable.According to previous studies,2 single nucleotide polymorphisms,Asn680Ser and-29A/G,have a pharmacogenetic association with ovarian response to COH.However,studies on the Asn680Ser polymorphism have yielded inconsistent conclusions and only a few studies with small sample sizes have been performed on-29A/G.The association of these 2 polymorphisms with ovarian response remains unclear.The present study evaluated the association of Asn680Ser and-29A/G genotypes with COH.A total of 414 Chinese women undergoing in vitro fertilization-embryo transfer were included.Genotypes for these single nucleotide polymorphisms were identified by high-resolution melting-curve analysis.The value of exogenous follicle-stimulating hormone dosage per oocyte divided by the body surface area(Dosage/OocyteSurface)was calculated for each patient as an indicator of ovarian response.The results of statistical analyses showed no association between Asn680Ser genotype and ovarian response.As for-29A/G,heterozygote individuals had more oocytes retrieved(P=0.034).Combinatorial analysis of these 2 single nucleotide polymorphisms showed that genotype A/G-Asn/Asn had lower basal-follicle-stimulating hormone and more oocytes retrieved.Analysis of genotype association with ovarian response also revealed this genotype had a significantly higher risk of developing hyper response(OR=7.86;95%CI:1.31-9.43).To some extent,there were associations between the studied polymorphisms and ovarian response;however,the power of this link is weak and has limited value for clinical prediction.

关键词： controlled ovarian hyperstimulation FSH FSHR ovarian response SNP

Loss of bifurcation patency after cross-over stenting of ostial lesions in superficial femoral artery： possible causes, prevention and reintervention

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Chinese Medical Journal 2014年第18期127卷 3291-3295页

作者： jiang junhao Chen Bin Dong Zhihui Shi Yun Li Weimiao Yue Jianing Department of Vascular Surgery Zhongshan Hospital FudanUniversity Shanghai 200032 China

Background Crossover stenting across the origin of the profunda femoral artery （PFA） and occasionally into the common femoral artery （CFA） is commonly used after suboptimal balloon angioplasty of ostial occlusive lesions of the superficial femoral artery （SFA） involving the bifurcation. Late stent occlusion at the bifurcation is not rare and results in severe lower extremity ischemia. Therefore, we tried to assess its possible causes, prevention and reintervention. Methods Using a prospectively maintained single-center database, 12-month femoral bifurcation patency was retrospectively compared and lesion and procedural predictors of stent occlusion were determined among 63 patients （64 lesions） who between July 2011 and February 2013 underwent crossover （36 non-jailed and 15 jailed SFA, and 12 distal and 1 complete CFA） stenting of de novo ostial SFA lesions. Results Twelve-month overall patency rate at the femoral bifurcation was 88%, with no significant difference between jailed-ostial SFA （80%） and distal CFA （67%） stenting （P=0.731）, and significant differences between either and non-jailed ostial stenting （100%,P=0.035 and 0.002）. When PFA ostium was jailed by the stent, patients with preexisting CFA or PFA lesions had a 12-month bifurcation patency rate of 20%, significantly lower than those with simple ostial SFA lesions （83%, P=0.015）. Stent induced intimal hyperplasia caused bifurcation occlusion in 6 surgical reintervention cases. Conclusions In crossover stenting of ostial lesions in SFA, bifurcation patency loss was significantly higher in distal CFA and jailed ostial SFA stenting than non-jailed ostial SFA stenting. Preexisting CFA or PFA lesion is a significant risk factor for bifurcation patency loss when PFA ostium is jailed by crossover stenting.

关键词： peripheral arterial disease endovascular therapy femoral bifurcation perioperative outcomes

Nonlinear electronic and ultrafast optical signatures in chemical vapor-deposited ultrathin PtS_(2) ribbons

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Nano Research 2022年第5期15卷 4366-4373页

作者： Shaolong jiang Jin Yang Liang Zhu Jiafeng Xie Weiteng Guo Erding Zhao Chaoyu Chen Tianwu Wang Fuhai Su Yanfeng Zhang junhao Lin Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices and Department of Physics Southern University of Science and TechnologyShenzhen 518055China Key Laboratory of Materials Physics Institute of Solid State PhysicsHFIPSChinese Academy of SciencesHefei 230031China University of Science and Technology of China Hefei 230026China Great Bay Area Research Institute Aerospace Information Research Institute(AIR)of Chinese Academy of Science(CAS)Guangzhou 510700China Shenzhen Institute for Quantum Science and Engineering and Department of Physics Southern University of Science and TechnologyShenzhen 518055China International Quantum Academy and Shenzhen BranchHefei National LaboratoryFutian DistrictShenzhen 518048China School of Materials Science and Engineering Peking UniversityBeijing 100871China

The emerging two-dimensional(2D)platinum disulfide(PtS_(2))has driven increasing attentions due to its high electron mobility,good air-stability,and strong interlayer interaction which leads to a widely tunable electronic structure.However,a detailed study on its covalent-like layer-dependent properties remains infant.Herein,we demonstrate the successful production of ultrathin 1T-PtS_(2) ribbons with thickness centralized almost at monolayer 1L-4L and large domain size up to 210 μm on Au foils using chemical vapor deposition(CVD)technique,which enables macro-and microscopic study of its extraordinary layer-dependent features with precise control of the number of layers.Using electron energy loss spectroscopy(EELS)and optical pump-probe spectroscopy(OPPS),we reveal that both the electron and ultrafast optical absorption signals of the as-grown 2D PtS_(2) show strong nonlinear layer-dependent responses which manifest discriminated transition in 1L-4L PtS_(2) ribbons.The layer-dependent nonlinear response of 2D PtS_(2) can be well interpreted in the frame of calculated electron and phonon structures.These achievements offer a platform for successfully fabricating large-sized ultrathin 2D PtS_(2) and facilitating our knowledge about its electronic and optoelectronic properties.

关键词： platinum disulfide(PtS_(2)) chemical vapor deposition electronic transition saturable absorption optical pump-probe spectroscopy