|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Research progress of the fractional Fourier transform in signal processing显示文摘The fractional Fourier transform is a generalization of the classical Fourier transform, which is introduced from the mathematic aspect by Namias at first and has many applications in optics quickly. Whereas its potential appears to have remained largely unknown to the signal processing community until 1990s. The fractional Fourier transform can be viewed as the chirp-basis expansion directly from its definition, but es-sentially it can be interpreted as a rotation in the time-frequency plane, i.e. the unified time-frequency transform. With the order from 0 increasing to 1, the fractional Fourier transform can show the characteristics of the signal changing from the time domain to the frequency domain. In this research paper, the fractional Fourier transform has been com-prehensively and systematically treated from the signal processing point of view. Our aim is to provide a course from the definition to the applications of the fractional Fourier transform, especially as a reference and an introduction for researchers and interested readers. | TAO Ran DENG Bing WANG Yue | 2006 | Science in China(Series F)2006，49，1： | 99 |
| 2 | Local“Land Finance”in China's Urban Expansion:Challenges and Solutions显示文摘这篇论文在中国的快城市的扩大的上下文考虑“本地陆地金融”的问题。在中国 s 陆地请求和公共租借系统的分析,我们主张那便宜陆地获得是发生在中国 s 都市化期间的陆地相关的失真的基本原因。同意农民力量在城市的扩大期间与陆地用户一起直接谈判,与协调陆地税改革结合了巩固本地税底是在城市的扩大完成公平和陆地使用效率的中国的关键。 | Changchun Feng Changchun Feng Ran Tao | 2008 | China & World Economy2008，16，2： | 41 |
| 3 | Research progress on discretization of fractional Fourier transform显示文摘As the fractional Fourier transform has attracted a considerable amount of attention in the area of optics and signal processing, the discretization of the fractional Fourier transform becomes vital for the application of the fractional Fourier transform. Since the discretization of the fractional Fourier transform cannot be obtained by directly sampling in time domain and the fractional Fourier domain, the discretization of the fractional Fourier transform has been investigated recently. A summary of discretizations of the fractional Fourier transform developed in the last nearly two decades is presented in this paper. The discretizations include sampling in the fractional Fourier domain, discrete-time fractional Fourier transform, fractional Fourier series, discrete fractional Fourier transform (including 3 main types: linear combination-type; sampling-type; and eigen decomposition-type), and other discrete fractional signal transform. It is hoped to offer a doorstep for the readers who are interested in the fractional Fourier transform. | TAO Ran ZHANG Feng WANG Yue | 2008 | Science in China(Series F)2008，51，7： | 22 |
| 4 | Convolution theorems for the linear canonical transform and their applications显示文摘As generalization of the fractional Fourier transform (FRFT), the linear canonical transform (LCT) has been used in several areas, including optics and signal processing. Many properties for this transform are already known, but the convolution theorems, similar to the version of the Fourier transform, are still to be determined. In this paper, the authors derive the convolution theorems for the LCT, and explore the sampling theorem and multiplicative filter for the band limited signal in the linear canonical domain. Finally, the sampling and reconstruction formulas are deduced, together with the construction methodology for the above mentioned multiplicative filter in the time domain based on fast Fourier transform (FFT), which has much lower computational load than the construction method in the linear canonical domain. | DENG Bing TAO Ran WANG Yue | 2006 | Science in China(Series F)2006，49，5： | 21 |
| 5 | Local Officials' Incentives and China's Economic Growth:Tournament Thesis Reexamined and Alternative Explanatory Framework显示文摘解释中国的戏剧的经济生长,研究人员们建议了一篇比赛论文。根据这篇论文,自从政治提升大部分基于本地经济生长,中央政府设置生长目标的能力在生长起了一个关键作用。我们使用省的官员的事业活动性数据测试这篇论文。为两个时间时期(19791995 和 19792002 ) ,经济性能,在年度、平均、相对的学期测量了,没影响这些官员的事业前进。我们然后勾略一个其他的分析框架为 developmentalism 解释中国本地官员的强壮的冲动并且最后,从这个解释框架拉政策含意。 | Fubing Su Ran Tao Lu Xi Ming Li | 2012 | China & World Economy2012，20，4： | 21 |
| 6 | TD-AltBOC:A new COMPASS B2 modulation显示文摘AltBOC(15,10) is the baseline of COMPASS B2 signal modulation.It is a BOC-like signal having different PN codes in the lower and the upper main split lobes,which allow one signal service per lobe.The two lobes can be received and processed separately like two BPSK(10) signals,or coherently processed to achieve better performance.Interoperability among COMPASS B2,Galileo E5 and GPS L5 is also achievable using AltBOC modulation.However,Galileo's 4-code AltBOC has drawbacks such as low efficiency and great receiver complexity.This paper presents a new modulation type named TD-AltBOC (Time Division AltBOC).The signal generation scheme and receiving method are presented,and are compared with AltBOC in the areas of power spectrum,ranging accuracy,anti-multipath performance,anti-interference performance,processing flexibility and complexity.Analysis results show TD-AltBOC has similar spectrum characteristics,interoperability,flexibility and anti-interference performance with AltBOC.When the frontend bandwidth is more than 50 MHz,TD-AltBOC can achieve better ranging accuracy and anti-multipath performance.It also has such advantages as high efficiency and low receiver complexity.TD-AltBOC could be a good solution to COMPASS B2 navigation signal. | TANG ZuPing ZHOU HongWei WEI JiaoLong YAN Tao LIU YuQi RAN YiHang ZHOU YanLing | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，6： | 20 |
| 7 | Interleukin-1β is a potential therapeutic target for periodontitis: a narrative review显示文摘Interleukin(IL)-1β, a pro-inflammatory cytokine, was elevated and participates in periodontitis. Not only the link between IL-1β and periodontitis was proved by clinical evidence, but also the increased IL-1β triggers a series of inflammatory reactions and promotes bone resorption. Currently, IL-1β blockage has been therapeutic strategies for autoimmune and autoinflammatory diseases such as rheumatoid arthritis, cryopyrin-associated periodic syndromes, gout and type II diabetes mellitus. It is speculated that IL-1β be a potential therapeutic target for periodontitis. The review focuses on the production, mechanism, present treatments and future potential strategies for IL-1β in periodontitis. | Ran Cheng Zhiwu Wu Mingming Li Meiying Shao Tao Hu | 2020 | International Journal of Oral Science2020，12，1： | 18 |
| 8 | Primary hepatic epithelioid angiomyolipoma: A malignant potential tumor which should be recognized显示文摘AIM: To improve the clinical diagnosis and recognition of hepatic epithelioid angiomyolipoma(HEAML).METHODS: Four cases of primary HEAML were confirmed based on the pathology archive system in our hospital from January 2009 to November 2015. The general state, clinical symptoms, imaging manifestations, histological results and immunohistochemistry of these patients were retrospectively reviewed and analyzed. Studies of HEAML published in the last 15 years were collected from Pub Med and MEDLINE to summarize the clinical symptoms, imaging characteristics, pathological features and management of HEAML.RESULTS: Four cases of primary HEAML were retrieved from our archives. These included three female patients and one male patient, with a mean age of 41.8 ± 11.5 years(ranging from 31 to 56 years). The meantumor size was 7.3 ± 5.5 cm(ranging from 3.0 to 15 cm). In the contrast-enhanced imaging, the tumor was obviously enhanced in the arterial phase, but enhanced continuously or exhibited a slow-density masse during the venous and delayed phases. Histologically, the tumors mainly consisted of epithelioid cells that comprised approximately 95% of the total neoplastic mass. Although no metastases occurred in our patients, pathological studies revealed necrosis, mitotic figures and liver invasion in two patients, which indicates aggressive behavior. Immunohistochemical staining revealed that human melanoma black 45(HMB-45) and Melan-A were positive in 4 cases. We only identified 81 cases with primary HEAML, including our present patients, from 26 articles available from Pub Med and MEDLINE. The majority of the papers were published as case reports. Only 5(5/75, 6%) cases were associated with tuberous sclerosis complex(TSC). More than half(35/66) were discovered incidentally upon physical examination. Approximately 65%(22/34) of the patients were misdiagnosed with HCC or other tumors before surgery. Approximately 10%(8/81) of the patients with HEAML had recurrence or metastasis after surgery, which was a very high and alarming rate.CONCLUSION: HEAML is a very rare primary hepatic tumor that is often misdiagnosed before surgery. Patients should be followed closely after surgery because of its malignant potential. | Jie Liu Cheng-Wu Zhang De-Fei Hong Ran Tao Yuan Chen Min-Jie Shang Yu-Hua Zhang | 2016 | World Journal of Gastroenterology2016，22，20： | 18 |
| 9 | Surgical treatment of hepatocellular carcinoma with inferior vena cava tumor thrombus: a new classification for surgical guidance显示文摘BACKGROUND: Hepatic resection is the main treatment modality for hepatic tumors. Advances in diagnostic technique, preoperative preparation, surgical technique, and postoperative management increased the success rate. The present study aimed to evaluate hepatectomy and resection of inferior vena cava tumor thrombus (IVCTT) in patients with hepatocellular carcinoma, and the relationship between IVCTT classification and selection of surgical technique. METHODS: We retrospectively reviewed 13 patients with hepatocellular carcinoma who had undergone hepatectomy with IVCTT resection between May 1997 and August 2009. Age, gender, diagnosis, findings of physical examination, results of preoperative laboratory investigations, radiological examination, criteria for resection, postoperative pathological results, incisions, operative technique, intraoperative transfusion, drains, and intraoperative and postoperative complications were evaluated for all patients. RESULTS: Type Ⅰ IVCTT (10 patients) was posterior to the liver and below the diaphragm; type Ⅱ IVCTT (2 patients) was above the diaphragm but still outside the atrium; and type Ⅲ IVCTT (1 patient) was above the diaphragm and in the right atrium. Type Ⅰ was treated by radical hepatectomy and removal of IVCTT with total hepatic vascular exclusion. Type Ⅱ was treated by radical hepatectomy and removal of IVCTT by incision of the diaphragm. Type Ⅲ was treated by hepatectomy and resection of the thrombus from the right atrium under cardiopulmonary bypass. There were no surgical complications and one patient has been survived for 4 years with cancer-free status. The median survival time was 18.2 months, and the 1-and 2-year survival rates were 53.8% and 15.4%, respectively. CONCLUSION: Surgical treatment is safe and feasible for treatment of IVCTT in patients with hepatocellular carcinoma, and surgical resectability can be judged according to the classification of tumor thrombus. | Ai-Jun Li Wei-Ping Zhou Chuan Lin Xi-Long Lang Zhen-Guang Wang Xiao-Yu Yang Qing-He Tang Ran Tao Meng-Chao Wu | 2013 | Hepatobiliary & Pancreatic Diseases International2013，12，3： | 15 |
| 10 | Fractional Fourier domain analysis of decimation and interpolation显示文摘The sampling rate conversion is always used in order to decrease computational amount and storage load in a system. The fractional Fourier transform (FRFT) is a powerful tool for the analysis of nonstationary signals, especially, chirp-like signal. Thus, it has become an active area in the signal processing community, with many applications of radar, communication, electronic warfare, and information security. Therefore, it is necessary for us to generalize the theorem for Fourier domain analysis of decimation and interpolation. Firstly, this paper defines the digital fre- quency in the fractional Fourier domain (FRFD) through the sampling theorems with FRFT. Secondly, FRFD analysis of decimation and interpolation is proposed in this paper with digital frequency in FRFD followed by the studies of interpolation filter and decimation filter in FRFD. Using these results, FRFD analysis of the sam- pling rate conversion by a rational factor is illustrated. The noble identities of decimation and interpolation in FRFD are then deduced using previous results and the fractional convolution theorem. The proposed theorems in this study are the bases for the generalizations of the multirate signal processing in FRFD, which can advance the filter banks theorems in FRFD. Finally, the theorems introduced in this paper are validated by simulations. | MENG XiangYi TAO Ran WANG Yue | 2007 | Science in China(Series F)2007，50，4： | 15 |
| 11 | Analysis and side peaks identification of Chinese DTTB signal ambiguity functions for passive radar显示文摘Passive radar is one of the current research focuses. The implementation of the Chinese standard digital television terrestrial broadcasting (DTTB) creates a new opportunity for passive radar. DTTB system contains single-carrier and multicarrier application modes. In this paper, ambiguity functions of the DTTB signals in the single-carrier and multicarrier application modes are analyzed. Ambiguity function of the DTTB signal contains one main peak and many side peaks. The relative positions and amplitudes of the side peaks are derived and the reasons for the occurrence of the side peaks are obtained. The side peaks identification (SPI) algorithm is proposed for avoiding the false alarms caused by the side peaks. Experimental results show that the SPI algorithm can indentify all the side peaks without the power loss. This research provides the foundation for designing the DTTB based passive radar. | GAO ZhiWen TAO Ran WANG Yue | 2009 | Science in China(Series F)2009，52，8： | 13 |
| 12 | Impact of Long-Term Atrazine Use on Groundwater Safety in Jilin Province, China显示文摘The long-lasting application of representative herbicide atrazine (ATR) has given rise to the accumulation of its residues in the groundwater. To investigate the impact of long-term ATR use on groundwater safety, the residues of ATR and its metabolites, desethylatrazine (DEA), deisopropylatrazine (DIA) and hydroxyatrazine (HA) were monitored in groundwater and top soil at the major corn growing region of Qian'an and Gongzhuling in Jilin Province, China. The residues of the target compounds were analyzed by UPLC-MS/MS. The limits of detection (LODs) of ATR, DEA, DIA, and HA were 0.5, 0.5, 5, and 0.5 ng L-1 in groundwater and 0.33, 0.33, 3.3, and 0.33 μg kg-1 in soil. The target compounds were found in 94% of groundwater samples and 100% of soil samples. The compounds detected most frequently in groundwater were ATR (89%), DEA (64%) and HA (17%), whereas in soil were ATR (97%), DEA (36%) and HA (97%). DIA was not detected in any determined groundwater and soil sample. Average residues were 106.8 ng L-1 for ATR, 0.9 ng L-1 for DEA and 0.3 ng L-1 for HA in groundwater, whereas 11.1 μg kg-1 for ATR, 0.4 μg kg-1 for DEA and 7.8 μg kg-1 for HA in soil. ATR residues detected in groundwater samples were below standards for drinking water quality (GB5749-2006, 2 μg L-1), while the total residues of ATR and its chloro-s-triazine metabolites (DEA and DIA) were below current WHO (World Health Organization) guideline value (GV, 0.1 mg L-1). In addition, concentrations of HA in groundwater were determined below current WHO GV (0.2 mg L-1). The results indicated that ATR is safe to be used in Jilin Province under the current application scheme. However, total residues of ATR and DEA were detected in nearly all wells, thus, it is necessary to pay attention on groundwater monitoring for ATR and its metabolites. | GENG Yue MA Jing JIA Ran XUE Li-qin TAO Chuan-jiang LI Chong-jiu MA Xiao-dong LIN Yan | 2013 | Journal of Integrative Agriculture2013，12，2： | 13 |
| 13 | The multiple-parameter fractional Fourier transform显示文摘The fractional Fourier transform(FRFT) has multiplicity,which is intrinsic in frac-tional operator.A new source for the multiplicity of the weight-type fractional Fou-rier transform(WFRFT) is proposed,which can generalize the weight coefficients of WFRFT to contain two vector parameters M,N ∈ZM.Therefore a generalized frac-tional Fourier transform can be defined,which is denoted by the multiple-parameter fractional Fourier transform(MPFRFT).It enlarges the multiplicity of the FRFT,which not only includes the conventional FRFT and general multi-fractional Fourier transform as special cases,but also introduces new fractional Fourier transforms.It provides a unified framework for the FRFT,and the method is also available for fractionalizing other linear operators.In addition,numerical simulations of the MPFRFT on the Hermite-Gaussian and rectangular functions have been performed as a simple application of MPFRFT to signal processing. | LANG Jun TAO Ran RAN QiWen WANG Yue | 2008 | Science in China(Series F)2008，51，8： | 12 |
| 14 | Compressed sensing SAR imaging based on sparse representation in fractional Fourier domain显示文摘Compressed sensing(CS)is a new technique of utilizing a priori knowledge on sparsity of data in a certain domain for minimizing necessary number of measurements.Based on this idea,this paper proposes a novel synthetic aperture radar(SAR)imaging approach by exploiting sparseness of echo data in the fractional Fourier domain.The effectiveness and robustness of the approach are assessed by some numerical experiments under various noisy conditions and different measurement matrices.Experimental results have shown that,the obtained images by using the CS technique depend on measurement matrix and have higher output signal to noise ratio than traditional pulse compression technique.Finally simulated and real data are also processed and the achieved results show that the proposed approach is capable of reconstructing the image of targets and effectively suppressing noise. | BU HongXia BAI Xia TAO Ran | 2012 | Science China(Information Sciences)2012，55，8： | 12 |
| 15 | Research on resolution between multi-component LFM signals in the fractional Fourier domain显示文摘When the initial frequencies and chirp rates of multi-component linear frequency modulation (LFM or chirp) signals are close,the signals may not be distinguished in the fractional Fourier domain (FRFD).Consequently,some signals cannot be detected.In this paper,first,the spectral distribution characteristics of a continuous LFM signal in the FRFD are analyzed,and then the spectral distribution characteristics of a LFM signal in the discrete FRFD are analyzed.Second,the critical resolution distance between the peaks of two LFM signals in the FRFD is deduced,and the relationship between the dimensional normalization parameter and the distance between two LFM signals in the FRFD is also deduced.It is discovered that selecting a proper dimensional normalization parameter can increase the distance.Finally,a method to select the parameter is proposed,which can improve the resolution ability of the fractional Fourier transform (FRFT).Its effectiveness is verified by simulation results. | LIU Feng XU HuiFa TAO Ran WANG Yue | 2012 | Science China(Information Sciences)2012，55，6： | 12 |
| 16 | Chronic Food Antigen-specific IgG-mediated Hypersensitivity Reaction as A Risk Factor for Adolescent Depressive Disorder显示文摘Major depressive disorder (MDD) is the most common nonfatal disease burden world-wide. Systemic chronic low-grade inflammation has been reported to be associated with MDD pro-gression by affecting monoaminergic and glutamatergic neurotransmission. However,whether various proinflammatory cytokines are abnormally elevated before the first episode of depression is still largely unclear. Here,we evaluated 184 adolescent patients who were experiencing their first episode of depressive disorder,and the same number of healthy individuals was included as con-trols. We tested the serum levels of high-sensitivity C-reactive protein (hs-CRP),tumor necrosis factor-α(TNF-α),IgE,14 different types of food antigen-specific IgG,histamine,homocysteine,S100 calcium-binding protein B,and diamine oxidase. We were not able to find any significant dif-ferences in the serum levels of hs-CRP or TNF-αbetween the two groups. However,the histamine level of the patients (12.35μM) was significantly higher than that of the controls (9.73μM,P<0.001,Mann–Whitney U test). Moreover,significantly higher serum food antigen-specific IgG positive rates were also found in the patient group. Furthermore,over 80% of patients exhibited prolonged food intolerance with elevated levels of serum histamine,leading to hyperpermeability of the blood–brain barrier,which has previously been implicated in the pathogen-esis of MDD. Hence,prolonged high levels of serum histamine could be a risk factor for depressive disorders,and antihistamine release might represent a novel therapeutic strategy for depression treatment. | Ran Tao Zhicheng Fu Lijun Xiao | 2019 | Genomics, Proteomics & Bioinformatics2019，17，2： | 11 |
| 17 | Trading Land Development Rights under a Planned Land Use System:The“Zhejiang Model”显示文摘中国的国家计划了陆地使用系统,包括象设定使用计划了为土地的限额那样的规定,基本农田保藏,并且追求在可耕地的变换之间的平衡进非农业的使用和新农业土地的补充,实质地在中国抑制了工业省的经济生长。这篇文章探索浙江省通过权利(LDR ) 在一个地区并且 LDR 越过地区做贸易以内转移的陆地开发采用的创新改革。我们主张有 LDR 转并且做贸易的一个浙江模型,它,我们相信,不仅为为陆地发展权利和农业陆地保藏,而且为土地和更多的平衡地区性的开发的最佳的使用促进一个提高效率的市场有重要含意。关于中国的农村土地系统的一个重要政策问题是在中国的土地请求系统下面,农民们在通常下面被补偿城市拿陆地。 | Hui Wang Ran Tao Juer Tong | 2009 | China & World Economy2009，17，1： | 10 |
| 18 | Centimeter-scale-diameter Co-based bulk metallic glasses with fracture strength exceeding 5000 MPa显示文摘Co48-xFexCr15Mo14C15B6Er2 (x = 2.5 and 5) bulk metallic glasses (BMGs) with critical size (dc) up to 15 mm in diameter were synthesized by copper mold casting. Co43Fe5Cr15Mo14C15B6Er2 BMG has a wide supercooled liquid region (84 K) and ultrahigh fracture strength exceeding 5000 MPa,which is the highest value for reported metallic glasses with dc exceeding 1 cm. Furthermore,the Poisson ratio,Young modulus,shear modulus and bulk modulus of this alloy were evaluated to be 0.31,217 GPa,82 GPa and 214 GPa,respectively. The ideal configurational entropy of Co48-xFexCr15Mo14C15B6Er2 (x = 0 and 5) has been calculated. The introduction of the similar element Fe in the Fe-free Co-Cr-Mo-C-B-Er alloy will be beneficial to increasing the ideal config-urational entropy and depressing the critical cooling rate to achieve greater glass-forming ability. The combination of superior glass-forming ability and ultrahigh fracture strength makes the present Co48-xFexCr15Mo14C15B6Er2 (x = 2.5 and 5) BMGs promising candidates as advanced structural materials. | ZHANG Tao YANG Qin JI YunFei LI Ran PANG ShuJie WANG JianFeng XU Tao | 2011 | Chinese Science Bulletin2011，56，36： | 10 |
| 19 | Clinical operational tolerance in liver transplantation:state-of-the-art perspective and future prospects显示文摘BACKGROUND:Liver transplantation is the definite treatment for end-stage liver diseases with satisfactory results.However,untoward effects of life-long immunosuppression prevent the development of alternative strategies to achieve better longterm outcome.Achieving clinical operational tolerance is the ultimate goal.DATA SOURCES:A PubMed and Google Scholar search using terms:'immune tolerance','liver transplantation','clinical trial','operational tolerance' and 'immunosuppression withdrawal' was performed,and relevant articles published in English in the past decade were reviewed.Full-text publications relevant to the field were selected and relevant articles from reference lists were also included.Priority was given to those articles which are relevant to the review.RESULTS:Because of the inherent tolerogenic property,around 20%-30% of liver transplantation recipients develop spontaneous operational tolerance after immunosuppression withdrawal,and the percentage may be even higher in pediatric living donor liver transplantation recipients.Several natural killer and γδT cell related markers have been identified to be associated with the tolerant state in liver transplantation patients.Despite the progress,clinical operational tolerance is still rare in liver transplantation.Reprogramming the recipient immune system by creating chimerism and regulatory cell therapies is among newer promising means to achieve clinical liver transplantation tolerance in the future.CONCLUSION:Although clinical operational tolerance is still rare in liver transplantation recipients,ongoing basic research and collaborative clinical trials may help to decipher the mystery of transplantation tolerance and extend the potential benefits of drug withdrawal to an increasing number of patients in a more predictable fashion. | Xi-Qiang Liu Zhi-Qiu Hu Yao-Fei Pei Ran Tao | 2013 | Hepatobiliary & Pancreatic Diseases International2013，12，1： | 9 |
| 20 | Coral reef-like polyanaline nanotubes prepared by a reactive template of manganese oxide for supercapacitor electrode显示文摘由 nanopaticles 组成的珊瑚像礁石的 PANI nanotubes 被锰氧化物的一个反应模板成功地综合。结构被使用 SEM, TEM,和英尺红外描绘,并且这些 nanotubes 的 supercapacitive 行为与周期的 voltammetry (CV ) 被调查,并且 chargedischarge 分别地测试。533 F/g 的一个最大的特定的电容能在 1 mol/L 被完成有 0.2 ~ 0.8 V 的潜在的范围的水的 H2SO4 (对浸透的甘汞电极) 在为 PANI 电极的一种一半房间安装配置,为电气化学的电容器在电极材料建议它的潜在的申请。 | Ling Ren Wang Fen Ran Yong Tao Tan Lei Zhao Ling Bin Kong Long Kang | 2011 | Chinese Chemical Letters2011，22，8： | 8 |
您所在的机构暂未开通此部分的功能，请联系管理员