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| 1 | De novo characterization of the root transcriptome of a traditional Chinese medicinal plant Polygonum cuspidatum显示文摘Various active components have been extracted from the root of Polygonum cuspidatum.However,the genetic basis for their activity is virtually unknown.In this study,25600002 short reads (2.3 Gb) of P.cuspidatum root transcriptome were obtained via Illumina HiSeq 2000 sequencing.A total of 86418 unigenes were assembled de novo and annotated.Twelve,18,60 and 54 unigenes were respectively mapped to the mevalonic acid (MVA),methyl-D-erythritol 4-phosphate (MEP),shikimate and resveratrol biosynthesis pathways,suggesting that they are involved in the biosynthesis of pharmaceutically important anthraquinone and resveratrol.Eighteen potential UDP-glycosyltransferase unigenes were identified as the candidates most likely to be involved in the biosynthesis of glycosides of secondary metabolites.Identification of relevant genes could be important in eventually increasing the yields of the medicinally useful constituents of the P.cuspidatum root.From the previously published transcriptome data of 19 non-model plant taxa,1127 shared orthologs were identified and characterized.This information will be very useful for future functional,phylogenetic and evolutionary studies of these plants. | HAO DaCheng MA Pei MU Jun CHEN ShiLin XIAO PeiGen PENG Yong HUO Li XU LiJia SUN Chao | 2012 | Science China(Life Sciences)2012，55，5： | 36 |
| 2 | Thermal energy storage:Challenges and the role of particle technology显示文摘Thermal energy is at the heart of the whole energy chain providing a main linkage between the primary and secondary energy sources.Thermal energy storage(TES)has a pivotal role to play in the energy chain and hence in future low carbon economy.However,a competitive TES technology requires a number of scientific and technological challenges to be addressed including TES materials,TES components and devices,and integration of TES devices with energy networks and associated dynamic optimization.This paper provides a perspective of TES technology with a focus on TES materials challenges using molten salts based phase change materials for medium and high temperature applications.Two key challenges for the molten salt based TES materials are chemical incompatibility and low thermal conductivity.The use of composite materials provides an avenue to meeting the challenges.Such composite materials consist of a phase change material,a structural supporting material,and a thermal conductivity enhancement material.The properties of the supporting material could determine the dispersion of the thermal conductivity enhancement material in the salt.A right combination of the salt,the structural supporting material,and the thermal conductivity enhancement material could give a hierarchical structure that is able to encapsulate the molten salt and give a substantial enhancement in the thermal conductivity.Understanding of the structure-property relationships for the composite is essential for the formulation design and fabrication of the composite materials.Linking materials properties to the system level performance is recommended as a key future direction of research. | Zhiwei Ge Yongliang Li Dacheng Li Ze Sun Yi Jin Chuanping Liu Chuan Li Guanghui Leng Yulong Ding | 2014 | Particuology2014，12，4： | 20 |
| 3 | Hierarchical graphene foam-based phase change materials with enhanced thermal conductivity and shape stability for efficient solar-to-thermal energy conversion and storage显示文摘最近, graphene 泡沫(GF ) 与一三维(3D ) 互连指导模板的化学蒸汽免职(CVD ) 生产的网络被用来与提高的热电导率准备合成阶段变化材料(脉冲编码调制) 。然而, GF 的毛孔尺寸象几百测微计一样大,导致为从在到 GF 神气墙的大毛孔内的 PCM 的热转移的一个显著热电阻。在这研究,新奇 3D 层次 GF (HGF ) 被用空 graphene 网络填满 GF 的毛孔获得。HGF 然后被用来准备基于的石蜡蜡(PW ) 合成脉冲编码调制。PW/HGF 合成脉冲编码调制的热传导性分别地比 PW/GF 合成脉冲编码调制和纯 PW 的高是 87% 和 744% 。PW/HGF 合成脉冲编码调制也与在 100 次骑车比 PW/GF 合成脉冲编码调制,在阶段变化温度的可以忽略的变化,是 95% 纯 PW 的高热的精力存储密度,好热可靠性,和化学稳定性展出更好的形状稳定性。更重要地, PW/HGF 合成脉冲编码调制与高 light-to-thermal 精力变换和存储效率允许光驱动的热精力存储,显示它为在太阳能的利用和存储的应用的大潜力。 | Guoqiang Qi Jie Yang Ruiying Bao Dongyun Xia Min Cao Wei Yang Mingbo Yang Dacheng Wei | 2017 | Nano Research2017，10，3： | 18 |
| 4 | Preliminary site classification of free-field strong motion stations based on Wenchuan earthquake records显示文摘During the great Wenchuan earthquake, about 460 permanent free-field stations in National Strong Motion Observation Network System (NSMONS) of China captured the main shock acceleration records. These records can be applied to site effect analyses, and then the site classification of those permanent stations can be carried out firstly, which will served as the fundamental information for further research. In this paper, the site of near-fault stations is classified by horizontal-to-vertical spectral ratio (HVSR) method according to the site class description of Japan earthquake resistant design code and response spectral shapes (RSS) method following the site class description of the 1997 Uniform Building Code (UBC) provisions. Then based on the detailed borehole data of those free-field stations, the equivalent shear wave velocity and overburden thickness are calculated and the site classifications are given by Chinese code for seismic design of buildings. Furthermore, for the stations having successful microtremor test data, the site dominant periods are computed to verify the results of site classification. Finally, combined with all the above results, the recommended site classes of near-fault permanent free-field stations are given. | Ruizhi Wen Yefei Ren Zhenghua Zhou Dacheng Shi | 2010 | Earthquake Science2010，23，1： | 15 |
| 5 | Improved HVSR site classification method for free-field strong motion stations validated with Wenchuan aftershock recordings显示文摘Local site conditions play an important role in the effective application of strong motion recordings.In the China National Strong Motion Observation Network System(NSMONS),some of the stations do not provide borehole information,and correspondingly,do not assign the site classes yet.In this paper,site classification methodologies for free-field strong motion stations are reviewed and the limitations and uncertainties of the horizontal-to-vertical spectral ratio(HVSR) methods are discussed.Then,a new method for site classification based on the entropy weight theory is proposed.The proposed method avoids the head or tail joggle phenomenon by providing the objective and subjective weights.The method was applied to aftershock recordings from the 2008 Wenchuan earthquake,and 54 free-field NSMONS stations were selected for site classification and the mean HVSRs were calculated.The results show that the improved HVSR method proposed in this paper has a higher success rate and could be adopted in NSMONS. | Wen Ruizhi Ren Yefei Shi Dacheng | 2011 | Earthquake Engineering and Engineering Vibration2011，10，3： | 14 |
| 6 | Chemical and biological research of Clematis medicinal resources显示文摘Clematis is a botanical source for various pharmaceutically active components,which has long been used in conventional medicine since the beginning of Chinese civilization.Increasing interest in Clematis medicinal resources has led to additional discoveries of triterpenoid saponins,flavonoids,coumarins,alkaloids and many other compounds in various Clematis species,and to investigations on their chemotaxonomy,molecular phylogeny and pharmacology.In continuation with our studies on Clematis chemistry and biology,we review the chemistry,chemotaxonomy,molecular biology and phylogeny of Clematis and their relevance to drug efficacy and drug development.Various databases and technology have been used in literature search in order to characterize the global scientific effort.It is essential to study more species for both the sustainable utilization of Clematis medicinal resources and finding novel compounds with potential clinical utility.Systems biology and omics technologies will play an increasingly important role in future medicinal research involving bioactive compounds of Clematis. | HAO DaCheng GU XiaoJie XIAO PeiGen PENG Yong | 2013 | Chinese Science Bulletin2013，58，10： | 13 |
| 7 | Endovascular treatment with or without intravenous alteplase for acute ischaemic stroke due to basilar artery occlusion显示文摘Background and purpose It remains controversial if endovascular treatment(EVT)can improve the outcome of patients with acute basilar artery occlusion(BAO).This study aims to compare the functional outcomes between EVT with and without intravenous thrombolysis(IVT)first in patients who had acute ischaemic stroke(AIS)due to BAO.Methods Patients who had AIS with BAO who underwent EVT within 24 hours of onset were enrolled in this multicentre cohort study,and the efficacy and safety were compared between IVT+EVT and direct EVT.The primary outcome was 90-day functional independence.All outcomes were assessed with adjusted OR(aOR)from the multivariable logistic regression.In addition,a meta-analysis was performed on all recently published pivotal studies on functional independence after EVT in patients with BAO.Results Of 310 enrolled patients with BAO,241(78%)were treated with direct EVT and 69(22%)with IVT+EVT.Direct EVT was associated with a worse functional outcome(aOR,0.46(95%CI 0.24 to 0.85),p=0.01).IVT+EVT was associated with a lower percentage of patients who needed≥3 passes of stent retriever(10.14%vs 20.75%).The meta-analysis regression revealed a potential positive correlation between bridging with IVT first and functional independence(r=0.14(95%CI 0.05 to 0.24),p<0.01).Conclusions This study showed that compared with direct EVT,EVT with IVT first was associated with better functional outcomes in patients with BAO treated within 24 hours of onset.The meta-analysis demonstrated similar favourable efficacy of IVT first followed by EVT in patients with BAO. | Ximing Nie David Wang Yuehua Pu Yufei Wei Qixuan Lu Hongyi Yan Xin Liu Lina Zheng Jingyi Liu Xinxuan Yang Yarong Ding Dacheng Liu Wanying Duan Zhe Zhang Zhonghua Yang Miao Wen Weibin Gu Xinyi Hou Xinyi Leng Yuesong Pan Zhongrong Miao Liping Liu | 2022 | Stroke & Vascular Neurology2022，7，3： | 10 |
| 8 | Pancreatic cancer stromal biology and therapy显示文摘Pancreatic cancer is one of the most lethal malignancies.Significant progresses have been made in understanding of pancreatic cancer pathogenesis,including appreciation of precursor lesions or premalignant pancreatic intraepithelial neoplasia(PanINs),description of sequential transformation from normal pancreatic tissue to invasive pancreatic cancer and identification of major genetic and epigenetic events and the biological impact of those events on malignant behavior.However,the currently used therapeutic strategies targeting tumor epithelial cells,which are potent in cell culture and animal models,have not been successful in the clinic.Presumably,therapeutic resistance of pancreatic cancer is at least in part due to its drastic desmoplasis,which is a defining hallmark for and circumstantially contributes to pancreatic cancer development and progression.Improved understanding of the dynamic interaction between cancer cells and the stroma is important to better understanding pancreatic cancer biology and to designing effective intervention strategies.This review focuses on the origination,evolution and disruption of stromal molecular and cellular components in pancreatic cancer,and their biological effects on pancreatic cancer pathogenesis. | Dacheng Xie Keping Xie | 2015 | Genes & Diseases2015，2，2： | 9 |
| 9 | Electrodeposition of Ni-W Amorphous Alloy and Ni-W-SiC Composite Deposits显示文摘Ni-W alloys and their composite deposits are electroplated on the metals when an appropriate complex agent is selected on the base of the theories of electrochemistry and complex chemistry, and the principle of induced codeposition. Effects of the bath composition, pH value, temperature and current density on the electrode position of Ni-W alloys and their composite deposits have been investigated, and the effect of heat treatment temperature on the hardness, structure and cohesive force of the amorphous Ni-W alloys and their composite deposits are also discussed. Results showed that the alloys containing more than 44 wt pct W content and the composite deposits containing 7.8 wt pct SiC content could be obtained by making use of the appropriate bath composition and plating conditions. Alloys and their composite deposits with over 44 wt pct W content show amorphous structure. The hardness of amorphous Ni-W alloys and their composite deposits increases obviously when heated, and can reach to 1350 HV and 1520 HV respectively for 46 wt pct W content. The cohesion on Cu, carbon steel and stainless steel is very good. | Zhongcheng GUO, Xiaoyun ZHU, Dacheng ZHAI and Xianwan YANG (Department of Metallurgy, Kunming University of Science and Technology, Kunming 650093, China) | 2000 | Journal of Materials Science & Technology2000，16，3： | 9 |
| 10 | Progressive LiDAR Adaptation for Road Detection显示文摘Despite rapid developments in visual image-based road detection, robustly identifying road areas in visual images remains challenging due to issues like illumination changes and blurry images. To this end, LiDAR sensor data can be incorporated to improve the visual image-based road detection,because LiDAR data is less susceptible to visual noises. However,the main difficulty in introducing LiDAR information into visual image-based road detection is that LiDAR data and its extracted features do not share the same space with the visual data and visual features. Such gaps in spaces may limit the benefits of LiDAR information for road detection. To overcome this issue, we introduce a novel Progressive LiDAR adaptation-aided road detection(PLARD) approach to adapt LiDAR information into visual image-based road detection and improve detection performance. In PLARD, progressive LiDAR adaptation consists of two subsequent modules: 1) data space adaptation, which transforms the LiDAR data to the visual data space to align with the perspective view by applying altitude difference-based transformation; and 2) feature space adaptation, which adapts LiDAR features to visual features through a cascaded fusion structure. Comprehensive empirical studies on the well-known KITTI road detection benchmark demonstrate that PLARD takes advantage of both the visual and LiDAR information, achieving much more robust road detection even in challenging urban scenes. In particular, PLARD outperforms other state-of-theart road detection models and is currently top of the publicly accessible benchmark leader-board. | Zhe Chen Jing Zhang Dacheng Tao | 2019 | IEEE/CAA Journal of Automatica Sinica2019，6，3： | 8 |
| 11 | Characteristics of the mantle source region of sodium lamprophyres and petrogenetic tectonic setting in northeastern Hunan,China显示文摘A set of unique sodium lamprophyres is devel)0.1(oped in the Cenozoic intraconti)]nental extensional zone of northeastern Hunan. These lamprophyres are significantly different in major [(and trace elements and Sr, Nd isotopes from ordinary potassic lamprophyr\ es. )0(The rocks)0( )(are)( )]characterized as being enriched in Na2O and high in TiO2 and weakly enriched in Nb, Ta, Nd and LREE with no negative Eu anomaly. The trace elements and Sr, Nd isotopic compositions are typical of the mantle source region of oceanic island basalts (OIB). The average initial 87Sr/86Sr ratio is 0.705332, and the average initial 143Nd/144Nd ratio is 0.512650, with εNd(t) being[( )45.4(+3.5)(--)(+3.9, )]marking a mantle source region of unique sodium lamprophyres. The lamprophyres were formed by metasomatism of the primitive mantle at the bottom of lithosphere by vola[(tile)(-)(containing )68.2(f)(l)(u-)]ids/melts from the asthenosphere. The measured Rb-Sr isochron age of sodium lamprophyre is 136.61 Ma, representing a period in which the tectonic setting changed from compressive to extensional. [(Sodium lamprophyres were formed in a mantle plume tectonic set)0(ting characterized by mantle )]upwelling from the asthenosphere within the continent. Asthenospheric mantle upwelling is the principal geodynamic factor leading to the formation of sodium lamprophyres and constraining the [(Yanshanian i)0(n)(tracontinental extensional activity in northeast)0(ern Hunan, China.)] | JIA Dacheng HU Ruizhong LU Yan XIE Guiqing QIU Xuelin | 2004 | Science China Earth Sciences2004，47，6： | 7 |
| 12 | miR-137 inhibits melanoma cell proliferation through downregulation of GLO1显示文摘Late-stage melanoma is refractory to current therapies. MicroRNAs (miRNAs) can modulate many physiological and pathological processes of melanoma. Studies have demonstrated that miR-137 acts as a tumor suppressor by inhibiting the proliferation of melanoma cells through targeting multiple mRNAs. The glyoxalase system member glyoxalase 1 (GLO1) is the principal scavenging enzyme of methylglyoxal (MG), a toxic byproduct of glycolysis. Using 35S in vivo/vitro labelling analysis for dynamic proteomics (SiLAD), we found that miR-137 downregulated the expression of GLO1 in melanoma cells.Bioinformatics analysis predicted that GLO1 is a direct target of miR-137. This was validated by dual luciferase reporter assay.Quantitative RT-PCR (qRT-PCR) and western blot analysis indicated that miR-137 could decrease endogenous GLO1 expression.Furthermore, siRNA targeting of GLO1 mimicked inhibition of melanoma cell proliferation caused by miR-137 overexpression.Re-expression of GLO1 was able to restore miR-137-mediated suppression of melanoma cell proliferation. Therefore, these results suggest that miR-137 inhibits the proliferation of melanoma cells by targeting GLO1. | Na Lv Shuai Hao Chonglin Luo Alia Abukiwan Ying Hao Fei Gai Weiwei Huang Lingyun Huang Xueyuan Xiao Stefan B.Eichmüller Dacheng He | 2018 | Science China(Life Sciences)2018，61，5： | 7 |
| 13 | Electrochemical reduction of graphene oxide films:Preparation,characterization and their electrochemical properties显示文摘Graphene oxide (GO) film was electrochemically reduced by a cyclic voltammetry technique in 6 mol L-1 KOH aqueous solution.Electrochemically reduced graphene oxide (ER-GO) film was characterized by X-ray diffraction,X-ray photoelectron spectroscopy,atomic force microscopy,and Raman spectroscopy.The oxygen content (with the O/C atomic ratio of 1.29%) was significantly decreased after electrochemical reduction.The ER-GO film exhibited a specific capacitance of 152 F g-1 at the current density of 5 A g-1 and a good rate capability.Furthermore,the ER-GO film showed an excellent cycling ability.The capacitance retention remained 99% after 3000 cycles at the current density of 10 A g-1. | ZHANG Xiong ZHANG DaCheng CHEN Yao SUN XianZhong MA YanWei | 2012 | Chinese Science Bulletin2012，57，23： | 6 |
| 14 | TSdb:A database of transporter substrates linking metabolic pathways and transporter systems on a genome scale via their shared substrates显示文摘TSdb (http://gffzzf860537ad99741d5hvwwo6cwccxkk6nvw.ffgz.tsg.suse.edu.cn) is the first manually curated central repository that stores formatted information on the substrates of transporters. In total, 37608 transporters with 15075 substrates from 884 organisms were curated from UniProt functional annotation. A unique feature of TSdb is that all the substrates are mapped to identifiers from the KEGG Ligand com- pound database. Thus, TSdb links current metabolic pathway schema with compound transporter systems via the shared compounds in the pathways. Furthermore, all the transporter substrates in TSdb are classified according to their biochemical properties, biological roles and subcellular localizations. In addition to the functional annotation of transporters, extensive compound annotation that includes inhibitor information from the KEGG Ligand and BRENDA databases has been integrated, making TSdb a useful source for the discovery of potential inhibitory mechanisms linking transporter substrates and metabolic enzymes. User-friendly web interfaces are designed for easy access, query and download of the data. Text and BLAST searches against all transporters in the database are provided. We will regularly update the substrate data with evidence from new publications. | ZHAO Min CHEN YanMing QU DaCheng QU Hong | 2011 | Science China(Life Sciences)2011，54，1： | 6 |
| 15 | Research progress in the phytochemistry and biology of Ilex pharmaceutical resources显示文摘Ilex is a botanical source for various health-promoting and pharmaceutically active compounds that have been used in traditional Chinese medicine and food for thousands of years.Increasing interest in Ilex pharmaceutical and food resources has led to additional discoveries of terpenoids,saponins,polyphenols(especially flavonoids),glycosides,and many other compounds in various Ilex species,and to investigation of their chemotaxonomy,molecular phylogeny and pharmacol-ogy.In continuation of our studies on Ilex pharmacology and phylogeny,we review the phytochemistry,chemotaxonomy,molecular biology and phylogeny of Ilex species and their relevance to health-promotion and therapeutic efficacy.The similarity and dissimilarity between Ilex paraguariensis,the source plant of mate tea,and the source plants of large-leaved K udingcha(e.g.,Ilex kudingcha and Ilex latifolia)are discussed.It is essential to utilize emerging technologies in non-Camellia tea studies to promote the sustainable utilization of Ilex resources and the identification and development of novel compounds with potential health and clinical utility.Systems biology and '-omics'technologies will play an increasingly important role in pharmaceutical and food research on the bioactive compounds of Ilex species. | Dacheng Hao Xiaojie Gua Peigen Xiao Zhanguo Liang Lijia Xu Yong Peng | 2013 | Acta Pharmaceutica Sinica B2013，3，1： | 6 |
| 16 | Effects of antisense CENP-B on the proliferation of HeLa (Tet-off) cells显示文摘In order to study the change of the expression of centromere protein B (CENP-B) caused by antisense transfection, proto-eukaryotically expressed fused protein GST-CENP-B (65 ku) was injected into mouse, and a peculiar anti-CENP-B serum MaCenpB was collected. A strain of transfected HeLa Tet-off cell HaCb, which contains antisense CENP-B expressing vector pBI-EGFP-as-CenpB, was prepared. Northern blot and Western blot were used to analyze the repression of internal CENP-B in transfected cells. According to the growth curve, the proliferation of HeLa (Tet-off) is repressed by antisense CENP-B, and the multiplication time is prolonged for 32.81 h. The analysis of flow cytometry revealed that, compared with HeLa (Tet-off), the G1 cell population of HaCb is increased (AG1=9%) while S fraction is decreased (AS=11%), but the G2/M phase is nearly unchanged (AG2/M=3%). In the meanwhile, the mi-totic index of HaCb declines greatly compared with that of HeLa (Tet-off). Immunofluorescence showed that the | Qianjin Liang Qian Wang Haiyan Lin Song Luo Chunmei Wang Dacheng He Yongchao Wang | 2002 | Chinese Science Bulletin2002，47，5： | 5 |
| 17 | Balance Control of a Biped Robot on a Rotating Platform Based on Efficient Reinforcement Learning显示文摘In this work,we combined the model based reinforcement learning(MBRL)and model free reinforcement learning(MFRL)to stabilize a biped robot(NAO robot)on a rotating platform,where the angular velocity of the platform is unknown for the proposed learning algorithm and treated as the external disturbance.Nonparametric Gaussian processes normally require a large number of training data points to deal with the discontinuity of the estimated model.Although some improved method such as probabilistic inference for learning control(PILCO)does not require an explicit global model as the actions are obtained by directly searching the policy space,the overfitting and lack of model complexity may still result in a large deviation between the prediction and the real system.Besides,none of these approaches consider the data error and measurement noise during the training process and test process,respectively.We propose a hierarchical Gaussian processes(GP)models,containing two layers of independent GPs,where the physically continuous probability transition model of the robot is obtained.Due to the physically continuous estimation,the algorithm overcomes the overfitting problem with a guaranteed model complexity,and the number of training data is also reduced.The policy for any given initial state is generated automatically by minimizing the expected cost according to the predefined cost function and the obtained probability distribution of the state.Furthermore,a novel Q(λ)based MFRL method scheme is employed to improve the policy.Simulation results show that the proposed RL algorithm is able to balance NAO robot on a rotating platform,and it is capable of adapting to the platform with varying angular velocity. | Ao Xi Thushal Wijekoon Mudiyanselage Dacheng Tao Chao Chen | 2019 | IEEE/CAA Journal of Automatica Sinica2019，6，4： | 5 |
| 18 | Two-dimensional self-healing hydrogen-bond-based supramolecula polymer film显示文摘Self-healing materials have been developed over the past decade with the recovery ability after damage.However,most researches focused on the self-healing process at three-dimension.Herein,we prepare monolayer self-healing hydrogen-bond-based supramolecular polymer film and explore the self-healing process at the two-dimensional limit.The healing process,which can be reversibly repeated for at least three times,is influenced by the temperature,the molecule-substrate interaction and the substrate roughness.In the application,the monolayer self-healing polymer film can be used to modify the SiO2 dielectric for copper phthalocyanine field effect transistor with improved mobility.This work will be valuable for developing two-dimensional functional self-healing materials in the future. | Mengnan He Xiaosong Chen Donghua Liu Dacheng Wei | 2019 | Chinese Chemical Letters2019，30，5： | 5 |
| 19 | Synthesis of novel β-amino ketones containing a p-aminobenzoic acid moiety and evaluation of their antidiabetic activities显示文摘The synthesis of two series of β-amino ketones containing a p-aminobenzoic acid moiety (TM-1 and TM-2) using a modified protocol of the Mannich reaction is reported. The molecular structures of a total of tweenty three new target compounds were characterized by 1H NMR, 13C NMR, ESI-MS and HR-MS. Subsequently, their antidiabetic activities were screened in vitro. The α-glucodase inhibition (α-GI) activity of compound 1e reached a remarkable level of 66.50%. The peroxisome proliferatoractivated receptor (PPAR) relative activation activities of six compounds are above 80%, and in particular 2i displays an unprecedentedly high PPAR of 130.91%. The structure-activity relationships of the compounds were established. 2i is also subject to further in-depth investigation. | TANG GuangXia YAN JuFang FAN Li XU Jin SONG XiaoLi JIANG Li LUO LingFei YANG DaCheng | 2013 | Science China Chemistry2013，56，4： | 5 |
| 20 | A Fast and Memory-Efficient Approach to NDN Name Lookup显示文摘For name-based routing/switching in NDN, the key challenges are to manage large-scale forwarding Tables, to lookup long names of variable lengths, and to deal with frequent updates. Hashing associated with proper length-detecting is a straightforward yet efficient solution. Binary search strategy can reduce the number of required hash detecting in the worst case. However, to assure the searching path correct in such a schema, either backtrack searching or redundantly storing some prefixes is required, leading to performance or memory issues as a result. In this paper, we make a deep study on the binary search, and propose a novel mechanism to ensure correct searching path without neither additional backtrack costs nor redundant memory consumptions. Along any binary search path, a bloom filter is employed at each branching point to verify whether a said prefix is present, instead of storing that prefix here. By this means, we can gain significantly optimization on memory efficiency, at the cost of bloom checking before each detecting. Our evaluation experiments on both real-world and randomly synthesized data sets demonstrate our superiorities | Dacheng He Dafang Zhang Ke Xu Kun Huang Yanbiao Li | 2017 | China Communications2017，14，10： | 4 |
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