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Science China(Technological Sciences) 2020年第9期63卷 1854-1862页

作者： wang Zhen wang XinHe XIA JianWei SHEN hao meng Bo College of Mathematics and Systems Science Shandong University of Science and TechnologyQingdao266590China School of Mathematics Science Liaocheng UniversityLiaocheng252059China School of Electrical Engineering and Information Anhui University of TechnologyMaanshan243002China

An adaptive sliding mode control(ASMC) method, based on fractional-order disturbance-observer(FODOB), is presented for a class of fractional-order nonlinear time-delay systems(FONTDS) with uncertainties to solve the target output tracking *** external disturbances are estimated by FODOB, and the unknown internal perturbations of the system are adaptively estimated by sliding mode control(SMC). Furthermore, Gronwall's inequality approach is used to ensure that the output tracking error is uniformly bounded for FONTDS. Firstly, a fractional-order sliding mode control(FOSMC) based FODOB is proposed for a fractional-order linear time-delay system(FOLTDS). Secondly, combined with adaptive estimation, the ASMC of FONTDS is studied. Finally, a numerical example of FONTDS is used to verify the effectiveness of the proposed methods.

关键词： adaptive sliding mode control fractional-order disturbance-observer time-delay uncertainty

Photo-responsive polymer materials for biological applications

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Chinese Chemical Letters 2017年第11期28卷 2085-2091页

作者： Yuwei hao Jingxin meng Shutao wang Beijing National Laboratory for Molecular Sciences Key Laboratory of Green Printing Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China CAS Key Laboratory of Bio-inspired Materials and Interfacial Science CAS Center for Excellence in Nanoscience Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China

Photo-responsive polymer materials from zero-dimensional micelles, two-dimensional surfaces to three-dimensional hydrogels have been designed, synthesized and applied for various biological fields including drug delivery and cell manipulation. Many remarkable works have been reported, revealing the advantages of photo-responsive polymers such as noninvasion and spatiotemporal control. In this review, we briefly summarized the remarkable progress of photo-responsive polymers with irreversible or reversible moieties and their further biological applications. The future opportunities and challenges of photo-responsive polymer materials are also proposed.

关键词： Photo-responsive polymer Micelle Hydrogel Cell manipulation Drug delivery

马来酸酐/丙烯酸水凝胶对亚甲基蓝染料的吸附

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吉林大学学报（理学版） 2017年第4期55卷 1037-1043页

作者：高婷李天任韩名超于萌王皓刘宛宜张玉峰刘淼吉林大学环境与资源学院长春130012 吉林农业大学资源与环境学院长春130118 吉林省龙桥辐射环境工程有限公司长春130012

以马来酸酐(MA)、丙烯酸(AA)和丙烯酰胺(AM)为原料,采用水溶液聚合法制备P(MA-co-AA-co-AM)水凝胶,并考察不同因素对水凝胶吸附亚甲基蓝染料效果的影响.实验结果表明:当亚甲基蓝染料初始质量浓度为1g/L,吸附剂用量为1g/L,溶液pH=9,环境... 详细信息

以马来酸酐(MA)、丙烯酸(AA)和丙烯酰胺(AM)为原料,采用水溶液聚合法制备P(MA-co-AA-co-AM)水凝胶,并考察不同因素对水凝胶吸附亚甲基蓝染料效果的影响.实验结果表明:当亚甲基蓝染料初始质量浓度为1g/L,吸附剂用量为1g/L,溶液pH=9,环境温度为20~25℃时,P(MA-co-AA-co-AM)水凝胶对亚甲基蓝染料的吸附效果最佳,最大吸附量为985.98mg/L,去除率达98.60%;水凝胶对亚甲基蓝的吸附行为符合准二级反应动力学方程和Langmuir吸附等温式.

关键词：水凝胶马来酸酐/丙烯酸亚甲基蓝吸附

Recent progress on the synthesis of 2-deoxy glycosides

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Science China Chemistry 2017年第9期60卷 1162-1179页

作者： Jing Zeng Yang Xu hao wang Lingkui meng Qian Wan 0030 China Institute of Brain Research Huazhong University of Science and TechnologyWuhan 410030China

2-Deoxy glycosides are widely presented in natural products and clinical *** presence of 2-deoxy glycosides is essential for bioactivities of these *** report provides an overview of the recent advances in the stereoselective synthesis of 2-deoxy ***,the contents of this review covered the work published since the earlier reviews on this topic by Marzabadi(2000),Lowary(2009),Ding(2012) and Nagorny(2012).

关键词： 2-deoxy glycosides, glycosylation, stereoselective synthesis, oligosaccharides

Capacity and Spatial Correlation Measurements of Compact MIMO Antennas

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China Communications 2021年第6期18卷 137-145页

作者： Dazhi Piao meng wang Jie Zuo hao Zhou School of Information and Communication Engineering Communication University of ChinaBeijing 100024China

The dual-port compact multiple-input multiple-output(MIMO)dipole antennas with close spacing d of 0.5λand 0.3λare designed,and some electromagnetic band gap(EBG)structures are inserted between them to reduce mutual *** MIMO antennas with d=0.5λand 0.3λ,and with different mutual couplings are fabricated and measured,the channel capacity and correlation coefficient(CC)are analyzed and compared in a rich multipath reverberation chamber(RC),an office and a conference *** show that if d is reduced from 0.5λto 0.3λ,in the RCs,channel capacities of all the antennas are very close to that of the *** channel,although the average CCs are increased from 0.168 in the nonlossy RC to 0.269 in the lossy *** the office and conference rooms,compared with the RC,the average capacities of those antennas get a slight reduction,however,in most cases,the capacity of d=0.5λis larger than that of d=0.3λ,and the antennas with EBG have a larger capacity compared with the antennas without EBG,with a corresponding reduction of CC.A non-line-of-sight(NLOS)scenario of through-the-wall is also investigated.

关键词： compact MIMO antenna channel capacity spatial correlation measurement

Nanomaterials modulate tumor-associated macrophages for the treatment of digestive system tumors

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Bioactive Materials 2024年第6期36卷 376-412页

作者： hao Li Shuai wang Zhengqiang Yang Xianwei meng meng Niu Department of Interventional Radiology First Hospital of China Medical UniversityShenyangChina Department of Interventional Therapy National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina Laboratory of Controllable Preparation and Application of Nanomaterials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijingChina China Medical University ShenyangChina

The treatment of digestive system tumors presents challenges,particularly in immunotherapy,owing to the advanced immune tolerance of the digestive *** have emerged as a promising approach for addressing these *** provide targeted drug delivery,enhanced permeability,high bioavailability,and low ***,nanomaterials target immunosuppressive cells and reshape the tumor immune microenvironment(TIME).Among the various cells in the TIME,tumor-associated macrophages(TAMs)are the most abundant and play a crucial role in tumor ***,investigating the modulation of TAMs by nanomaterials for the treatment of digestive system tumors is of great ***,we present a comprehensive review of the utilization of nanomaterials to modulate TAMs for the treatment of gastric cancer,colorectal cancer,hepatocellular carcinoma,and pancreatic *** also investigated the underlying mechanisms by which nanomaterials modulate TAMs to treat tumors in the digestive ***,this review summarizes the role of macrophage-derived nanomaterials in the treatment of digestive system ***,this research offers valuable insights into the development of nanomaterials tailored for the treatment of digestive system tumors.

关键词： Digestive system tumors Tumor-associated macrophages Nanomaterials Tumor immune microenvironment Therapy

Non-Coherent Multi-Symbol Detection of PR-CPM for Deep Space Relay Satellites with Physical-Layer Network Coding

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China Communications 2020年第7期17卷 101-112页

作者： meng wang Chongzheng hao Xiaoyu Dang Xiangbin Yu College of Electronic and Information Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China

The demand for wireless spectrum and data transmission has increased dramatically with the rapid growth of deepspace exploration and *** satellite relay communication is an essential technique to solve the issues *** method of combining Physical-layer Network Coding(PNC)with Continuous Phase Modulation(CPM)on relay satellites can improve communication efficiency and perform the collection and transmission of space data ***-Response CPM(PR-CPM)signals possess excellent spectrum and power characteristics and are suitable for deep-space communications with limited bandwidth and massive data *** this paper,a partial response non-coherent multi-symbol detection algorithm is proposed based on the Maximum-Likelihood *** proposed algorithm fully utilizes the memory properties of PR-CPM signals and makes decisions on specified symbols by observing a number of symbols each *** results indicate that the performance gain under the Bit Error Rate of 10-4 is about 2 dB when 5 symbols are inspected,compared with the case where the observation length is 3.

关键词： communication CPM Symbol

Removal of phenol by Isochrysis galbana in seawater under varying temperature and light intensity

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Journal of Oceanology and Limnology 2020年第3期38卷 773-782页

作者： LI hao meng Fanping wang Yuejie LIN Yufei Key Laboratory of Marine Environment and Ecology Ministry of EducationQingdao 266100China College of Environmental Science and Engineering Ocean University of ChinaQingdao 266100China National Marine Hazard Mitigation Service Ministry of Natural Resources of the People’s Republic of ChinaBeijing 100194China

Phenol is a common industrial chemical produced and transported worldwide ***,accidental spillage of phenol in the ocean causes an increasing *** are promising to remove phenol from marine ***,temperature and light intensity are two main factors that markedly influence biodegradation in marine *** this study,a marine golden alga Isochrysis galbana is selected to research the removal of phenol under different temperatures(10-30℃)and light intensities(0-240μmol/(m^2·s)).The results show that the most suitable temperature and light intensity for phenol removal are 20℃and 180μmol/(m2·s),respectively,and 100 mg/L of phenol can be completely removed by microalga in 24 h at these *** can also remove phenol under dark and low-temperature *** removal of phenol by *** at diverse temperatures and light intensities conform to first-order kinetics,and the process under dark conditions conform to zero-order ***,*** can be used in the in-situ bioremediation of polluted seawater by phenol.

关键词： phenol Isochrysis galbana temperature light intensity biodegradation

Attitude stabilization of a pico-satellite by momentum wheel and magnetic coils

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第11期10卷 1617-1623页

作者： Tao meng hao wang Zhong-he JIN Ke HAN Department of lnformation Science & Electronic Engineering Zhejiang University Hangzhou 310027 China

The three-axis active attitude control method with a momentum wheel and magnetic coils for a pico-satellite is considered. The designed satellite is a 2.5 kg class satellite stabilized to nadir pointing. The momentum wheel performs a pitch-axis momentum bias, nominally spinning at a particular rate. Three magnetic coils are mounted perpendicularly along the body axis for precise attitude control through the switch control mechanism. Momentum wheel start up control, damping control and attitude acquisition control are considered. Simulation results show that the proposed combined control laws for the pico-satellite is reliable and has an appropriate accuracy under different separation conditions. The proposed strategy to start up the wheel after separation from the launch vehicle shows that its pitch momentum wheel can start up successfully to its nominal speed from rest, and the attitude convergence can be completed within several orbits, depending on separation conditions.

关键词： Pico-satellite Attitude control Magnetic coils Momentum wheel

Plasma preparation and low-temperature sintering of spherical TiC –Fe composite powder

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International Journal of Minerals,Metallurgy and Materials 2015年第12期22卷 1328-1333页

作者： Jian-jun wang Jun-jie hao Zhi-meng Guo Song wang Institute for Advanced Materials and Technology University of Science and Technology Beijing Research and Development Center CSR Qingdao Sifang Co. Ltd.

A spherical Fe matrix composite powder containing a high volume fraction （82vo1%） of fine TiC reinforcement was produced using a novel process combining in situ synthesis and plasma techniques. The composite powder exhibited good sphericity and a dense structure, and the fine sub-micron TiC particles were homogeneously distributed in the α-Fe matrix. A TiC-Fe cermet was prepared from the as-prepared spherical composite powder using powder metallurgy at a low sintering temperature; the product exhibited a hardness of HRA 88.5 and a flexural strength of 1360 MPa. The grain size of the fine-grained TiC and special surface structure of the spherical powder played the key roles in the fabrication process.

关键词： powder technology cermets radio frequency plasma sintering numerical simulation