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| 1 | Tensor-Based Low-Complexity Channel Estimation for mmWave Massive MIMO-OTFS Systems显示文摘Orthogonal time frequency space(OTFS)modulation,collaborated with millimeter-wave(mmWave)massive multiple-input-multiple-output(MIMO),is a promising technology for next generation wireless communications in high mobility scenarios.However,one of the main challenges for mmWave massive MIMO-OTFS systems is the enormous computational complexity of channel estimation incurred by the huge OTFS symbol size and the large number of antennas.To address this issue,in this paper,a tensor-based orthogonal matching pursuit(OMP)channel estimation algorithm is proposed by exploiting the channel sparsity in the delay-Doppler-angle domain.In particular,we firstly propose a novel pilot design for the OTFS symbol structure in the frequency-time domain.Then,based on the proposed pilot structure,we formulate the channel estimation as a sparse signal recovery problem,and the tensor decomposition and parallel support detection are introduced into the tensor-based OMP algorithm to reduce the signal processing dimension significantly.Numerical simulations are performed to verify the superiority and the robustness of the proposed tensor-based OMP algorithm. | Xianda Wu Shaodan Ma Xi Yang | 2020 | Journal of Communications and Information Networks2020,5,3: | 5 |
| 2 | Microvascular pathological features and changes in related injury factors in a rat acute blood stasis model显示文摘OBJECTIVE: To examine the microvascular pathological characteristics and changes in related injury factors in a rat model of acute blood stasis.METHODS: A total of 75 Sprague-Dawley rats were divided randomly and equally into a control group and four experimental groups assessed at different times after the induction of stasis(0, 1, 3 or 6 h after stasis)(n = 15). The acute blood stasis model was established through rat tail-vein injection of high-molecular-weight dextran. After Electrocardiograph(ECG) detection at predetermined times(0,1, 3 and 6 h after induction of stasis), the rats were sacrificed and blood and cardiac samples were harvested for analysis. Hematoxylin-eosin(HE) staining and transmission electron microscopy were used for histopathological detection; an enzyme linked immunosorbent assay(ELISA) was used to detect thromboxane B2(TXB2) and 6-keto-prostaglandin F1α(6-Keto-PGF1α) concentrations; a real-time polymerase chain reaction(PCR) reaction system was used to detect intercellular adhesion molecule1(ICAM-1) and vascular cell adhesion molecule1(VCAM-1) m RNA expression; western blotting was used to detect vascular endothelial cadherin(VE-cadherin) protein expression.RESULTS: The ST segment in the ECG showed gradual elevation after induction of stasis and continued elevation at a high level at 3 and 6 h. The HE staining showed changes in myocardial cell necrosis and tissue dissociation after the induction of stasis, along with inflammatory infiltration. Results of transmission electron microscopy showed immediate changes in blood stasis and lumen occlusion in the microvasculature, along with endothelial cell swelling. After the induction of stasis, TXB2 concentrations gradually increased while 6-Keto-PGF1αconcentrations were immediately significantly reduced. The TXB2/6-Keto-PGF1αratio was maintained at a high level. ICAM-1 m RNA expression showed an unstable elevation while VCAM-1 m RNA expression was significantly reduced after the induction of stasis. Compared with the control group, VE-cadherin protein expression increased at 0 and 3 h after the induction of stasis, while no change occurred at 1 and 6 h.CONCLUSION: The pathological manifestations of acute blood stasis are microvascular blood retention, lumen stenosis and even occlusion. The condition is also called 'blood coagulation and weep' in Traditional Chinese Medicine. The blood stasis model resulted in the injury and necrosis of endothelial cells and cardiomyocytes, along with the presence of an imbalance of vasomotor factor levels, platelet activation, and increases in the expression of adhesion molecules and endothelial barrier dysfunction,which corresponds to 'blood failed to nourish' in Traditional Chinese Medicine. | Zhang Junxiu Feng Yu Li Shaodan, Liu Yi Zhang Yin Guo Yunxia Yang Minghui | 2017 | Journal of Traditional Chinese Medicine2017,37,1: | 5 |
| 3 | Changes in nitric oxide,angiotensinⅡ,angiopoietin-like protein 4 mRNA,neuregulin 1 mRNA,and platelet endothelial cell adhesion molecule-1 in rats with acute blood stasis induced by high-molecular-weight dextran显示文摘OBJECTIVE: To investigate the influence of acute blood stasis on nitric oxide(NO), angiotensin Ⅱ(Ang Ⅱ), angiopoietin-like protein 4(ANGPTL4)m RNA, neuregulin 1(NRG-1) m RNA, and platelet endothelial cell adhesion molecule-1(PECAM-1) in rats with stasis induced by high-molecular-weight dextran(HMWD).METHODS: Seventy-five Sprague Dawley rats were divided randomly into five groups(n = 15 in each group): control group, immediate group, 1 h group,3 h group, and 6 h group. A model of acute blood stasis was established via injection of HMWD into the tail vein. After performing electrocardiogram at the predetermined times according to the grouping, we collected blood and cardiac samples for hematoxylin-eosin(HE) staining and histopathological examination via transmission electron microscopy. Enzyme-linked immunosorbent assay was used to detect plasma levels of NO, AngⅡ, and fibrinogen. Real-time polymerase chain reaction was used to detect the expression of ANGPTL4 m RNA and NRG-1 m RNA. Immunohistochemical methods were used to detect PECAM-1 protein expression.RESULTS: The rat model of blood stasis showed blood retention in the capillary lumens. The ST segment showed gradual elevation, and was still elevated at 3 and 6 h after induction of blood stasis.HE staining showed myocardial cell necrosis and dissolution after modeling, along with basement membrane rupture and mitochondrial structural damage. Transmission electron microscopy showed endothelial cell swelling and an increase in absorption vesicles immediately after modeling. Endothelial cell apoptosis was increased at 3 and 6 h after modeling. Cardiac muscle fibers were disordered and intercalated discs were blurred immediately after modeling. There were massive numbers of dissolved cardiac muscle fibers, ruptured basement membranes, and mitochondrial structural damage at 3 and 6 h after modeling. NO plasma concentration was significantly reduced immediately and 1 h after modeling, while it was increased at 3 and 6 h.AngⅡ plasma concentration was decreased immediately after modeling, but increased at 1, 3, and6 h. Fibrinogen plasma concentration was significantly increased at immediate, 1, 3, and 6 h after modeling. PECAM-1 protein expression was obviously increased immediately after modeling, at 1, 6 h was found mild augment. Expression of Ang PTL4 m RNA was increased at immediate, 1, 3, and 6 h after modeling, and was found further augment at 3,and 6 h. Expression of NRG-1 m RNA was increased at immediate, 1, 3, and 6 h after modeling, and the strongest expression was at 1 h.CONCLUSION: The pathological manifestation of acute blood stasis is characterized by microvascular blood retention. Prolonged blood stasis leads to worsening endothelial cell and cardiomyocyte damage, along with imbalances in the expression of vasomotor factors and increased vascular tone.The pathological damage caused by blood stasis also promotes the expression of cell protection factors. | Feng Yu Zhang Junxiu Li Shaodan Liu Yi Zhang Yin Guo Yunxia Yang Minghui | 2017 | Journal of Traditional Chinese Medicine2017,37,6: | 3 |
| 4 | Recent progress in synthesis of lanthanide-based persistent luminescence nanoparticles显示文摘Persistent luminescence nanoparticles(PLNPs)are a kind of phosphors that can remain luminescent for seconds to several days after the stoppage of excitation.Lanthanides show the special capability to largely broaden the emission range and enhance the luminescence intensity of PLNPs due to their dense energy structure and unique electronic configurations.In the past decades,various methods have been developed for the synthesis of lanthanide-based PLNPs with excellent pe rsistent luminescence propertie s,and the lanthanide-based PLNPs are widely studied in areas including biome dicine,energy,and information storage.In this review,we summarized the research progress in the synthe sis of lanthanidebased PLNPs and outline d several typical synthesis methods.We discussed the fundamental concepts of preparation methods as well as the advantages and drawbacks of the typical synthetic approache s.Moreove r,the current challenges and the potential solutions for the development of lanthanide-based PLNP s are also discussed in an attempt to provide strate gies to further improve the optical properties of lanthanide-based PLNPs.We hope this review can contribute to the design of lanthanide-based PLNPs with desired properties and further promote their applications in biomedicine,energy,and information science. | Yurong Wei Chengxu Gong Min Zhao Lei Zhang Shaodan Yang Peixu Li Zhao Ding Quan Yuan Yanbing Yang | 2022 | Journal of Rare Earths2022,40,9: | 2 |
| 5 | Modelling of dynamic contact length in rail grinding process显示文摘栏杆从去支持火车并且指导车轮的过去的火车忍受经常的动态负担。积累的压力集中将向产生折皱引起栏杆的塑料变丑,接触疲劳裂开,也,其它背叛,导致更多的危险地位甚至出轨风险。磨技术的栏杆因此与旋转磨与缺点移动在栏杆上压的石头被发明了。磨工作的如此的栏杆被经验指导,灵活、科学的操作方法缺乏而非科学地指导。与磨联合起来拿磨擦石头的控制,磨过程的栏杆有特征磨擦的不仅表面而且跑的铁路车辆。首先,它的对重要分析在磨擦石头和栏杆之间的接触长度,因为接触长度是一个批评参数测量石头的磨擦能力。而且,它的需要建立铁路车辆联合起来的模型与磨擦石头结合了代表磨擦的栏杆汽车。因此,为接触长度的理论模型基于几何分析被开发。并且精明的模型被改进在磨擦过程期间认为磨擦汽车是动态行为。最后,结果被拿操作参数和结构参数进计算基于模型获得,它对揭示栏杆由联合磨擦机制和铁路车辆系统磨擦的进程合适。 | Shaodan ZHI Jianyong LI A. M. ZAREMBSKI | 2014 | Frontiers of Mechanical Engineering2014,9,3: | 2 |
| 6 | Tea polyphenols inhibit the growth and angiogenesis of breast cancer xenografts in a mouse model显示文摘Objective:To investigate the anti-angiogenic effect of tea polyphenols(TPS)on breast cancer and normal tissues in a mouse model.Methods:Breast cancer was successfully implanted into 48 BALB/c mice,which were then randomly divided into a TP oral gavage group,a TP local injection group,a ginsenoside Rg3 group,and a model control group according to a random number table.The tumor inhibitory rates of each group were calculated,while microvessel density(MVD)and the expression of vascular endothelial growth factor(VEGF),basic fibroblast growth factor(bFGF),and tissue inhibitor of metalloproteinase(TIMP-2)were detected by immunohistochemistry.Results:TPs could inhibit the growth of breast cancer xenografts in the mouse model.The tumor inhibition rates of the TP oral gavage and TP local injection groups were 37.43%and 40.94%,respectively.Compared with the model control group,MVD and VEGF and bFGF expression was downregulated(all P<.05),whereas TIMP-2 expression was elevated in the TP oral gavage and TP local injection groups(P=.015 and P=.032).TPs showed no significant effect on MVD and VEGF and TIMP-2 expression in the heart,brain,and kidney of the mouse model.Conclusion:TPs can restrict the growth of breast cancer by specifically inhibiting the angiogenesis of breast tumor tissue while having little effect on the normal tissue of important organs including the heart,brain,and kidney. | Peng Lv Fengqin Shi Xinyi Chen Li Xu Chong Wang Shaodan Tian Heng Yang Li Hou | 2020 | Journal of Traditional Chinese Medical Sciences2020,7,2: | 2 |
| 7 | Mechanism research on combination of decoction for reinforcing lung Qi and argon helium lancet in treatment of non-small cell lung cancer显示文摘OBJECTIVE: To observe the effect of decoction for reinforcing lung Qi on T-lymphocytic function, interleukin-2 (IL-2) and tumor necrosis factor-α (TNF-α) in peripheral blood of patients with non-small cell lung cancer after operation with argon helium lancet in order to explore its mechanism.METHODS: A total of 76 patients suffering from non-small cell lung cancer without surgical indication were randomly divided into a treatment group treated with decoction for reinforcing lung Qi and argon helium lancet and a control group treated with argon helium lancet only to observe lymphocytic proliferation, detect the percentage of positive cells in the T-lymphocyte CD28 with flow cytometry and detect the expression of IL-2 and TNF-α in peripheral blood with enzyme linked immunosorbent assay.RESULTS: Proliferation of T-lymphocytes and expression of CD28, IL-2 and TNF-α in peripheral blood after treatment in the treatment group were more obviously strengthened than those before treatment and those in the control group (all P<0.05).CONCLUSION: The mechanism of using decoction for reinforcing lung Qi and argon helium lancet to treat lung cancer may be realized through promoting T-lymphocytic proliferation, up-regulating expression of CD28, IL-2 and TNF-α, and activating T-cells. | Yin Zhang Shaodan Li Ke Cao Yu Feng Xiao Zhang Yueyong Xiao Jie Li | 2013 | Journal of Traditional Chinese Medicine2013,33,3: | 2 |
| 8 | Separation and accumulation of Cu(Ⅱ),Zn(Ⅱ) and Cr(Ⅵ) from aqueous solution by magnetic chitosan modified with diethylenetria-mine显示文摘 | Li Haibo Bi Shaodan Liu Long | 2011 | Desalination2011,278,3: | 1 |
| 9 | Organelle-inspired supramolecular nanomedicine to precisely abolish liver tumor growth and metastasis显示文摘Organelles are responsible for the efficient storage and transport of substances in living systems.A myriad of extracellular vesicles(EVs)acts as a bridge to exchange signaling molecules in cell-cell communication,and the highly dynamic tubulins and actins contribute to efficient intracellular substance transport.The inexhaustible cues of natural cargo delivery by organelles inspire researchers to explore the construction of biomimetic architectures for“smart”delivery carriers.Herein,we report a 10-hydroxycamptothecin(HCPT)-peptide conjugate HpYss that simulates the artificial EV-to-filament transformation process for precise liver cancer therapy.Under the sequential stimulus of extracellular alkaline phosphatase(ALP)and intracellular glutathione(GSH),HpYss proceeds via tandem self-assembly with a morphological transformation from nanoparticles to nanofibers.The experimental phase diagram elucidates the influence of ALP and GSH contents on the self-assembled nanostructures.In addition,the dynamic transformation of organelle-mimetic architectures that are formed by HpYss in HepG2 cells enables the efficient delivery of the anticancer drug HCPT to the nucleus,and the size-shape change from extracellular nanoparticles(50-100 nm)to intracellular nanofibers(4-9 nm)is verified to be of key importance for nuclear delivery.Nuclear targeting of HpYss amplifies apoptosis,thus significantly enhancing the inhibitory effect of HCPT(>10-fold)to HepG2 cells.Benefitting from the spatiotemporally controlled nanostructures,HpYss exhibited deep penetration,enhanced accumulation,and long-term retention in multicellular spheroid and xenograft models,potently abolishing liver tumor growth and preventing lung metastasis.We envision that our organelle-mimicking delivery strategy provides a novel paradigm for designing nanomedicine to cancer therapy. | Jie Zhan Yuhan Wang Shaodan Ma Qin Qin Ling Wang Yanbin Cai Zhimou Yang | 2022 | Bioactive Materials2022,7,3: | 1 |
| 10 | On performance of cooperative communication systems with spatial random relays显示文摘 | Wang Hongzheng Ma Shaodan Ng TungSang | 2011 | IEEETrans on Communications2011,59,4: | 1 |
| 11 | From frequency domain to time domain:performance analysis on cyclic prefixed multi-user single-carrier transmission显示文摘This paper analyzes the performance of cyclic prefixed single-carrier transmission under multiuser interference(MUI). For multi-user receivers using single carrier frequency domain adaptive antenna array,we derive the signal to interference plus noise ratio by analyzing the time domain estimated signal after the transformation from frequency domain to time domain. By assuming the MUI follows the Gaussian distribution,we can derive the analytical expression for the bit error rate(BER) performance. The analytical result is verified by the numerical results generated by Monte Carlo method. It is concluded from the analytical results that if the number of receive antennas goes to infinity as assumed in massive multiple input multiple output(MIMO)system, the BER performance will be determined by two ratios: signal to noise ratio as well as the Nr to U ratio, where Nr is the number of receive antennas and U is the number of users. | Wei PENG Qing F. ZHOU An HUANG Shaodan MA | 2016 | Science China(Information Sciences)2016,59,8: | 1 |
| 12 | Wind Power Prediction Based on Multi-class Autoregressive Moving Average Model with Logistic Function显示文摘The seasonality and randomness of wind present a significant challenge to the operation of modern power systems with high penetration of wind generation. An effective shortterm wind power prediction model is indispensable to address this challenge. In this paper, we propose a combined model, i.e.,a wind power prediction model based on multi-class autoregressive moving average(ARMA). It has a two-layer structure: the first layer classifies the wind power data into multiple classes with the logistic function based classification method;the second layer trains the prediction algorithm in each class. This two-layer structure helps effectively tackle the seasonality and randomness of wind power while at the same time maintaining high training efficiency with moderate model parameters. We interpret the training of the proposed model as a solvable optimization problem. We then adopt an iterative algorithm with a semi-closed-form solution to efficiently solve it. Data samples from open-source projects demonstrate the effectiveness of the proposed model. Through a series of comparisons with other state-of-the-art models, the experimental results confirm that the proposed model improves not only the prediction accuracy,but also the parameter estimation efficiency. | Yunxuan Dong Shaodan Ma Hongcai Zhang Guanghua Yang | 2022 | Journal of Modern Power Systems and Clean Energy2022,10,5: | 1 |
| 13 | Joint CFO and channel estimation for muhi-user MIMO-OFDM systems with optimal training sequences显示文摘 | Chen Jian-wu Wu Yik-Chung Ma Shaodan | 2008 | IEEE Transactions on Signal Processing2008,56,8: | 1 |
| 14 | Matrix-monotonic optimization for MIMO sys?tems显示文摘 | Chengwen Xing Shaodan Ma and Yiqing Zhou | 2015 | IEEE Transactions on Signal Processing2015,63,2: | 1 |
| 15 | Pilot-aided IQ Imbalance Compensation for OFDM Systems Operating Over Doubly Selective Channels显示文摘 | He Lanlan Ma Shaodan Wu Yik-Chung | 2010 | IEEE Transactions on Signal Processing2010,59,5: | 1 |
| 16 | Expert consensus statement on diagnosis and treatment of cancer-related depressed mood state based on Chinese medicine显示文摘This consensus statement is organized into six parts:1)Definitions:cancer-related depressed mood state is defined as a group of depressive symptoms,rather than major depressive disorder.Thus,“cancer-related depression”or“depressed mood state”is introduced as standard terminology and associated with the Chinese medicine concept of“yu zheng”(depression syndrome).2)Pathogenesis:factors including psychological stress,cancer pain,cancer fatigue,sleep disorders,surgery trauma,chemotherapy,and radiation therapy are strongly associated with cancer-related depressed mood state.Crucial elements of pathogenesis are cancer caused by depression,depression caused by cancer,and the concurrence of phlegm,dampness,and stasis from constrained liver-qi and spleen deficiency.3)Symptoms:these include core symptoms,psychological symptoms,and somatic symptoms.Depressed mood and loss of interest are the main criteria for diagnosis.4)Clinical evaluation:based on the Mini-International Neuropsychiatric Interview and a numeric rating scale,and taking mood changes during cancer diagnosis and treatment into consideration,a questionnaire can be drafted to distinguish between major depressive disorder and cancer-related depression.The aim is to assist oncology clinicians to identify,treat,and refer patients with cancer-related depression.5)Diagnosis:diagnosis should be based on the Chinese Classification for Mental Disorders(CCMD-3),taking patients’mood changes during diagnosis and treatment into consideration.6)Treatment:treatments for cancer-related depression must be performed concurrently with cancer treatment.For mild depression,non-pharmacologic comprehensive therapies,including psychological intervention,music therapy,patient education,physical activity,and acupuncture,are recommended;for moderate depression,classical Chinese herbal formulas based on syndrome pattern differentiation combined with antidepressants are suggested;for severe depressive symptoms that have progressed to major depressive disorder, patients should be referred to a psychiatric clinician for specialized care. | Shaodan Tian Mei Jia Li Hou Xinyi Chen Dongyun Li Tianwei Guo | 2015 | Journal of Traditional Chinese Medical Sciences2015,2,4: | 1 |
| 17 | TOA-based Passive Localization in Quasi-Synchronous Networks 显示文摘 | Wang Yuan Ma Shaodan Philip C L Chen | 2014 | IEEE Communi- cations Letters2014,18,4: | 1 |
| 18 | Blind Symbol Synchronization Based on Cyclic Prefix for OFDM Systems显示文摘 | Ma Shaodan Pan Xinyue Yang Guanghua | | 0,,04: | 1 |
| 19 | Comparison of KRAS/BRAF mutations between primary tumors and serum incolorectal cancer: Biological and clinical implications显示文摘 | Xingxiang Pu Zhizhong Pan Ying Huang Ying Tian Hongqiang Guo Lin Wu Xuexing He Xinggui Chen Shaodan Zhang Tongyu Lin | 2013 | Oncology Letters2013,,1: | 1 |
| 20 | An exper- imental study of bubble sliding characteristics in narrow channel 显示文摘 | Shaodan Li Sichao Tan Chao Xu | 2013 | International Journal of Heat and Mass Transfer2013,,57: | 1 |