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| 1 | APT攻击与防御显示文摘高级持续性威胁(advanced persistent threat,APT)逐渐演化为各种社会工程学攻击与零日漏洞利用的综合体,已成为最严重的网络空间安全威胁之一。APT以攻击基础设施、窃取敏感情报为目的,且具有强烈的国家战略意图,从而使网络安全威胁由散兵游勇式的随机攻击演化为有目的、有组织、有预谋的群体式定向攻击。近年来,APT攻击与防御已受到网络空间安全社区的持续关注,获得了长足发展与广泛应用。该文首先回顾了APT起源与发展演化过程;其次讨论了APT攻击机理与生命周期;然后探讨了APT防御体系与检测方法,归纳总结目前APT检测防御的最新技术;最后讨论了APT攻击发展趋势、APT防御存在的问题和进一步研究方向。 | 张瑜 潘小明 LIU Qingzhong 曹均阔 罗自强 | 2017 | 清华大学学报(自然科学版)2017，57，11： | 22 |
| 2 | Genesis of the Bangbu Orogenic Gold Deposit, Tibet: Evidence from Fluid Inclusion, Stable Isotopes, and Ar-Ar Geochronology显示文摘The Bangbu gold deposit is a large orogenic gold deposit in Tibet formed during the AlpineHimalayan collision. Ore bodies(auriferous quartz veins) are controlled by the E-W-trending Qusong-Cuogu-Zhemulang brittle-ductile shear zone. Quartz veins at the deposit can be divided into three types: pre-metallogenic hook-like quartz veins, metallogenic auriferous quartz veins, and postmetallogenic N-S quartz veins. Four stages of mineralization in the auriferous quartz veins have been identified:(1) Stage S1 quartz+coarse-grained sulfides,(2) Stage S2 gold+fine-grained sulfides,(3) Stage S3 quartz+carbonates, and(4) Stage S4 quartz+ greigite. Fluid inclusions indicate the oreforming fluid was CO_2-N_2-CH_4 rich with homogenization temperatures of 170–261°C, salinities 4.34–7.45 wt% Na Cl equivalent. δ^(18)Ofluid(3.98‰–7.18‰) and low δDV-SMOW(-90‰ to-44‰) for auriferous quartz veins suggest ore-forming fluids were mainly metamorphic in origin, with some addition of organic matter. Quartz vein pyrite has δ^(34)SV-CDT values of 1.2‰–3.6‰(an average of 2.2‰), whereas pyrite from phyllite has δ^(34)SV-CDT 5.7‰–9.9‰(an average of 7.4‰). Quartz vein pyrites yield 206Pb/204 Pb ratios of 18.662–18.764, 207Pb/204 Pb 15.650–15.683, and ^(208)Pb/204 Pb 38.901–39.079. These isotopic data indicate Bangbu ore-forming materials were probably derived from the Langjiexue accretionary wedge. 40Ar/39 Ar ages for sericite from auriferous sulfide-quartz veins yield a plateau age of 49.52 ± 0.52 Ma, an isochron age of 50.3 ± 0.31 Ma, suggesting that auriferous veins were formed during the main collisional period of the Tibet-Himalayan orogen(~65–41 Ma). | PEI Yingru SUN Qingzhong ZHENG Yuanchuan YANG Zhusen LI Wei HUANG Kexian | 2016 | Acta Geologica Sinica(English Edition)2016，90，2： | 12 |
| 3 | Lowering the energy consumption in silicon photonic devices and systems [Invited]显示文摘We review current silicon photonic devices and their performance in connection with energy consumption.Four critical issues are identified to lower energy consumption in devices and systems: reducing the influence of the thermo-optic effect, increasing the wall-plug efficiency of lasers on silicon, optimizing energy performance of modulators, and enhancing the sensitivity of photodetectors. Major conclusions are(1) Mach–Zehnder interferometer-based devices can achieve athermal performance without any extra energy consumption while microrings do not have an efficient passive athermal solution;(2) while direct bonded III–V-based Si lasers can meet system power requirement for now, hetero-epitaxial grown III–V quantum dot lasers are competitive and may be a better option for the future;(3) resonant modulators, especially coupling modulators, are promising for low-energy consumption operation even when the power to stabilize their operation is included;(4) benefiting from high sensitivity and low cost, Ge/Si avalanche photodiode is the most promising photodetector and can be used to effectively reduce the optical link power budget. These analyses and solutions will contribute to further lowering energy consumption to meet aggressive energy demands in future systems. | Zhiping Zhou Bing Yin Qingzhong Deng Xinbai Li Jishi Cui | 2015 | Photonics Research2015，3，5： | 11 |
| 4 | 基于危险理论的APT攻击实时响应模型显示文摘针对当前破坏性极大的APT(advanced persistent threat,高级持续性威胁)攻击威胁,提出一种基于免疫危险理论的APT攻击实时响应模型。定义了网络活动中的自体、非自体、危险抗原、危险信号、抗原提呈细胞(特征提取器)、免疫细胞(特征识别器),使用危险信号浓度来实时定量计算抗原危险性,并在此基础上建立了抗原提呈细胞、免疫细胞和抗原基因库动态演化方程。理论分析与实验结果表明,提出的模型有效克服了抗原危险性难以实时定量计算的问题,且对于APT攻击抗原的检测较传统方法有更好的适应性。 | 张瑜 LIU Qingzhong 李涛 曹均阔 吴丽华 | 2015 | 四川大学学报(工程科学版)2015，47，4： | 9 |
| 5 | Effect of yellow rice wine on anti-aging ability in aged mice induced by D-galactose显示文摘The present study is focused on investigation of the health protective effect of yellow rice wine(YRW)in mice and the potential underlying mechanism.Symptoms of aging were induced in mice by using Dgalactose(D-gal),and different doses of YRW(4,8,and 12 mL/kg BW)were orally administrated to D-galtreated mice for a period of six weeks.The in vivo data obtained in the present study preliminary indicated that YRW markedly increased the activity of antioxidant enzymes and reduced the concentration of MDA both in the brain and liver.Furthermore,a forced swim test showed that moderate intake of YRW(8 mL/kg BW)significantly decreased the duration of immobility,reduced the blood content of urea nitrogen and lactic acid,and increased hepatic glycogen storage.Besides,results from the Morris water maze test suggested that YRW significantly reversed cognitive impairment and also alleviated neuroapoptosis in the experimental mice by regulating the gene expressions of Bax/Bcl-2 and caspase-3.The above results indicated YRW has a potential anti-aging effect in mice and provided us certain molecular evidence for this action. | Rong Liu Zukang Fu Fengjie Zhang Qingzhong Mao Chunguang Luan Xinglin Han Jie Xue Deliang Wang Si Qin Feike Hao | 2020 | Food Science and Human Wellness2020，9，2： | 8 |
| 6 | Strategic Thinking of the Internet of Things and M2M Services显示文摘The Internet of Things is an important part of the emerging high-tech industry and has been recognized as one of the important technologies for addressing global financial crisis and revitalizing the economy. Therefore, at the beginning of the new year, we are honored to have invited Mr. Samuel Qi (Qi Qingzhong), a famous Chinese communication technology expert and GM of Shanghai Symphony Telecommunications Co., Ltd., to give his views on the development strategy of the Internet of Things and Machine to Machine (M2M) Communications. Mr. Qi believes that M2M is currently the leading and most practical service in the Internet of Things. Globally, many governments have a high regard for M2M services, and M2M has had or will have large-scale applications in some industries and will gradually influence more industries. Mr. Qi points out that M2M will become one of the core LTE applications in the coming years. Moreover, M2M terminals will provide a high degree of innovation and integration in form and service support. For M2M application in some industries, they will increasingly support wireless access bandwidth flexibility and service scheduling management and may also integrate with neighboring services to some extent. In other industries, they may deeply integrate with a series of sensors and equipment used for remote monitoring and controlling. | Qi Qingzhong | 2010 | ZTE Communications2010，8，1： | 6 |
| 7 | Athermal scheme based on resonance splitting for silicon-on-insulator microring resonators显示文摘A novel athermal scheme utilizing resonance splitting of a dual-ring structure is proposed.Detailed design and simulation are presented,and a proof of concept structure is optimized to demonstrate an athermal resonator with resonance wavelength variation lower than 5 pm∕K within 30 K temperature range. | Qingzhong Deng Xinbai Li Zhiping Zhou Huaxiang Yi | 2014 | Photonics Research2014，2，2： | 5 |
| 8 | Codon Usage Biases of Transposable Elements and Host Nuclear Genes in Arabidopsis thaliana and Oryza sativa显示文摘Transposable elements (TEs) are mobile genetic entities ubiquitously distributed in nearly all genomes.High frequency of codons ending in A/T in TEs has been previously observed in some species.In this study,the biases in nucleotide composition and codon usage of TE transposases and host nuclear genes were investigated in the AT-rich genome of Arabidopsis thaliana and the GC-rich genome of Oryza sativa.Codons ending in A/T are more frequently used by TEs compared with their host nuclear genes.A remarkable positive correlation between highly expressed nuclear genes and C/G-ending codons were detected in O.sativa (r=0.944 and 0.839,respectively,P<0.0001) but not in A.thaliana,indicating a close association between the GC content and gene expression level in monocot species.In both species,TE codon usage biases are similar to that of weakly expressed genes.The expression and activity of TEs may be strictly controlled in plant genomes.Mutation bias and selection pressure have simultaneously acted on the TE evolution in A.thaliana and O.sativa.The consistently observed biases of nucleotide composition and codon usage of TEs may also provide a useful clue to accurately detect TE sequences in different species. | Jia Jia Qingzhong Xue | 2009 | Genomics, Proteomics & Bioinformatics2009，7，4： | 4 |
| 9 | Single-drive high-speed lumped depletion-type modulators toward 10 fJ/bit energy consumption显示文摘Reduction of modulator energy consumption to 10 fJ∕bit is essential for the sustainable development of communication systems.Lumped modulators might be a viable solution if instructed by a complete theory system.Here,we present a complete analytical electro-optic response theory,energy consumption analysis,and eye diagrams on absolute scales for lumped modulators.Consequently the speed limitation is understood and alleviated by single-drive configuration,and comprehensive knowledge into the energy dependence on structural parameters significantly reduces energy consumption.The results show that silicon modulation energy as low as 80.8 and 21.5 fJ∕bit can be achieved at 28 Gbd under 50 and 10 Ω impedance drivers,respectively.A 50 Gbd modulation is also shown to be possible.The analytical models can be extended to lumped modulators on other material platforms and offer a promising solution to the current challenges of modulation energy reduction. | XINBAI LI FENGHE YANG FANG ZHONG QINGZHONG DENG JURGEN MICHEL ZHIPING ZHOU | 2017 | Photonics Research2017，5，2： | 4 |
| 10 | Chromosome-scale genome assembly of sweet cherry(Prunus avium L.)cv.Tieton obtained using long-read and Hi-C sequencing显示文摘Sweet cherry(Prunus avium)is an economically significant fruit species in the genus Prunus.However,in contrast to other important fruit trees in this genus,only one draft genome assembly is available for sweet cherry,which was assembled using only Illumina short-read sequences.The incompleteness and low quality of the current sweet cherry draft genome limit its use in genetic and genomic studies.A high-quality chromosome-scale sweet cherry reference genome assembly is therefore needed.A total of 65.05 Gb of Oxford Nanopore long reads and 46.24 Gb of Illumina short reads were generated,representing~190x and 136x coverage,respectively,of the sweet cherry genome.The final de novo assembly resulted in a phased haplotype assembly of 344.29 Mb with a contig N50 of 3.25 Mb.Hi-C scaffolding of the genome resulted in eight pseudochromosomes containing 99.59%of the bases in the assembled genome.Genome annotation revealed that more than half of the genome(59.40%)was composed of repetitive sequences,and 40,338 protein-coding genes were predicted,75.40%of which were functionally annotated.With the chromosomescale assembly,we revealed that gene duplication events contributed to the expansion of gene families for salicylic acid/jasmonic acid carboxyl methyltransferase and ankyrin repeat-containing proteins in the genome of sweet cherry.Four auxin-responsive genes(two GH3s and two SAURs)were induced in the late stage of fruit development,indicating that auxin is crucial for the sweet cherry ripening process.In addition,772 resistance genes were identified and functionally predicted in the sweet cherry genome.The high-quality genome assembly of sweet cherry obtained in this study will provide valuable genomic resources for sweet cherry improvement and molecular breeding. | Jiawei Wang Weizhen Liu Dongzi Zhu Po Hong Shizhong Zhang Shijun Xiao Yue Tan Xin Chen Li Xu Xiaojuan Zong Lisi Zhang Hairong Wei Xiaohui Yuan Qingzhong Liu | 2020 | Horticulture Research2020，7，1： | 4 |
| 11 | Synergic Mechanism of an Organic Corrosion Inhibitor for Preventing Carbon Steel Corrosion in Chloride Solution显示文摘The inhibition effect of dimethylethanolamine(DMEA) and its composite with carboxylic acid was studied with the electrochemical tests. The experimental results indicate that DMEA is not a good inhibitor but the composite of DMEA with caprylic acid exhibits excellent inhibiting efficiency. The synergic mechanism of the organic corrosion inhibitors(OCIs) was studied with quantum chemical calculations. It is found that the DMEA forms a quaternary ammonium salt with the proton in carboxylic acid, and a cyclic complex formed between the salt and Fe may be responsible for the enhancement of inhibiting efficiency. The possible hydrogen bond formed between DMEA and carboxylic acid is not enough for the inhibiting effect. This work is helpful to proposing theoretical interpretation as well as developing a functional organic inhibitor to improve the durability of reinforced concrete contaminated with chloride. | 刘志勇 YU Lei LI Qingzhong | 2015 | Journal of Wuhan University of Technology(Materials Science)2015，30，2： | 4 |
| 12 | Heterogeneous Network-Based Chronic Disease Progression Mining显示文摘Healthcare insurance fraud has caused billions of dollars in losses in public healthcare funds around the world. In particular, healthcare insurance fraud in chronic diseases is especially rampant. Understanding disease progression can help investigators detect healthcare insurance frauds early on. Existing disease progression methods often ignore complex relations, such as the time-gap and pattern of disease occurrence. They also do not take into account the different medication stages of the same chronic disease, which is of great help when conducting healthcare insurance fraud detection and reducing healthcare costs. In this paper, we propose a heterogeneous network-based chronic disease progression mining method to improve the current understanding on the progression of chronic diseases, including orphan diseases. The method also considers the different medication stages of the same chronic disease. Extensive experiments show that our method can outperform the existing methods by 20% in terms of F-measure. | Chenfei Sun Qingzhong Li Lizhen Cui Hui Li Yuliang Shi | 2019 | Big Data Mining and Analytics2019，2，1： | 3 |
| 13 | Low-cost hybrid integrated 4 × 25.78 Gb/s CWDM TOSA for 10 km transmission using DFB-LDs and an arrayed waveguide grating multiplexer显示文摘We have developed a cost-effective and highly compact 100-Gb/s coarse wavelength division multiplexing(CWDM) transmitter optical subassembly(TOSA) using lens-free hybrid integration. To achieve large alignment tolerances, distributed feedback laser diodes(DFB-LDs) are butt-coupled to a four-channel silica-based planar lightwave circuit(PLC) arrayed waveguide grating, with the silicon sub-mounts and PLC adhesively bonded.Then, a flexible printed circuit is employed to connect the internal DFB-LDs and the exterior of the TOSA package for radiofrequency signal transmission, eliminating the expensive ceramic feed-through. The packaged CWDM TOSA, which is 15.8 mm × 7.0 mm × 6.0 mm in size, shows a side-mode suppression ratio of>40 dB, a 3 dB bandwidth of >18 GHz, and error-free transmission with an average optical output power of >0 dBm and dynamic extinction ratio of >4.0 dB at 25.78125 Gb/s over a 10 km single-mode fiber for all four lanes. | J1UN LIU QINGZHONG HUANG SHIQI TAO CHENG ZENG JINSONG XIA | 2018 | Photonics Research2018，，11： | 3 |
| 14 | Salvia miltiorrhiza-asarum ointment combined with Chinese medical massage alleviates symptoms of osteoarthritis in a rat model through the Notch1/matrix metalloproteinase-13 signaling pathway显示文摘OBJECTIVE:This study investigated the effect of salvia miltiorrhiza-asarum ointment(SMAO)plus Chinese medical massage on knee osteoarthritis in a rat model.METHODS:Hulth's method was used to establish a Sprague-Dawley rat model of knee osteoarthritis(OA).The levels of matrix metalloproteinase-13(MMP-13),collagen-Ⅱ,aggrecan,interleukin(IL)-1β,tumor necrosis factor-α(TNF-α),and IL-6 were measured by enzyme-linked immunosorbent assays.The joint space was assessed by a Perlove X-ray system.Histopathology was examined by hematoxylin-eosin and Safranin O staining.The mRNA and protein expression levels of Notch1,MMP-13,collagen-Ⅱ,and aggrecan were measured by quantitative reverse transcription-polymerase chain reaction and Western blotting,respectively.RESULTS:SMAO plus Chinese medical massage significantly decreased the levels of MMP-13,IL-1β,TNF-α,and IL-6,and increased serum collagen-Ⅱ and aggrecan levels.Pathological injury of the knee joint was improved by SMAO treatment.mRNA and protein expression of Notch1 and MMP-13 was remarkably downregulated,but collagen-Ⅱ and aggrecan levels were significantly upregulated in cartilage tissues.CONCLUSION:SMAO combined with Chinese medical massage effectively relieves OA symptoms,which may involve inhibiting inflammation through the Notch1/MMP-13 signaling pathway. | LAI Qingzhong ZHANG Xianjie CHEN Meilan HAN Zhicun | 2021 | Journal of Traditional Chinese Medicine2021，41，4： | 3 |
| 15 | N-doped porous graphene for carbon dioxide separation:a molecular dynamics study显示文摘Using molecular dynamics simulations,it is shown that N-doped porous graphene membrane can efficiently separate CO2from the CO2/CH4mixture.The effects of pore rim modifications,N-doping sites,initial gas pressure,and feed gas compositions on CO2separation performance of N-doped porous graphene membrane are also examined.It is found that gas permeability increases with increasing initial gas pressure or the feed gas percentages.Pore rim modifications with nitrogen atoms(pyridinic N)can significantly improve the selectivity of CO2over CH4owing to the enhanced electrostatic interactions compared to the unmodified one,and the all-N-modified pore-16 shows the highest CO2selectivity over CH4(*29).Doping N atoms on the graphene sheets(quaternary N)has little effect on the CO2selectivity.Our study demonstrates that the N-doped porous graphene is an excellent candidate for CO2separation,which may be beneficial for the realization of a low carbon society. | Qingzhong Xue Meixia Shan Yehan Tao Zilong Liu Cuicui Ling Yonggang Du | 2014 | Chinese Science Bulletin2014，59，29： | 3 |
| 16 | A new package:MySAS for small angle scattering data analysis显示文摘In this paper,A MySAS package,which is verified on Windows XP,can easily convert two-dimensional data in small angle neutron and X-ray scattering analysis,operate individually and execute one particular operation as numerical data reduction or analysis,and graphical visualization.This MySAS package can implement the input and output routines via scanning certain properties,thus recalling completely sets of repetition input and selecting the input files.On starting from the two-dimensional files,the MySAS package can correct the anisotropic or isotropic data for physical interpretation and select the relevant pixels.Over 50 model functions are fitted by the POWELL code using x^2 as the figure of merit function. | Huang Chaoqiang Xia Qingzhong Yan Guanyun Sun Guang'ai Chen Bo | 2010 | Nuclear Science and Techniques2010，21，6： | 3 |
| 17 | 血管内皮祖细胞与内皮细胞生长因子在冠状动脉粥样硬化性心脏病状态时的变化显示文摘目的:观察冠状动脉粥样硬化性心脏病(简称冠心病)患者循环内皮祖细胞与血管内皮细胞生长因子的变化及其相互间的关系。方法:①对象:于2005-11/2006-10在泰山医学院聊城临床学院心内科住院并行冠状动脉造影检查确诊为冠心病患者37例和冠状动脉造影正常者(对照组)7例。其中稳定型心绞痛患者12例、不稳定型心绞痛患者14例、急性心肌梗死患者11例。②方法:采集研究对象外周血进行内皮祖细胞的分离培养,激光共聚焦显微镜鉴定FITC-UEA-I和DiLDL双染色阳性细胞为正在分化的内皮祖细胞,通过集落形成试验、改良的Boyden小室和黏附能力测定实验计数内皮祖细胞的数量,测定内皮祖细胞的迁移和黏附能力。用酶联免疫吸附法检测44例入选者血浆内皮细胞生长因子水平,比较其与循环内皮祖细胞的数量、迁移和黏附能力有无相关性。结果:急性心肌梗死组内皮祖细胞集落形成数是对照组的2.7倍,其迁移能力较其他3组升高(P<0.01),但其黏附能力与不稳定型心绞痛组相比差异无显著性;不稳定型心绞痛患者内皮祖细胞数量及迁移能力较稳定型心绞痛和对照组升高(P<0.01);稳定型心绞痛患者内皮祖细胞数量及迁移、黏附能力均比对照组减低(P<0.05)。不稳定型心绞痛和急性心肌梗死患者血浆内皮细胞生长因子水平明显高于对照组(P<0.01)。内皮细胞生长因子浓度与循环内皮祖细胞数量及迁移能力呈正相关,与循环内皮祖细胞黏附能力无相关性。结论:急性心肌梗死(发病7d内)和不稳定型心绞痛可引起循环内皮祖细胞数量增多,迁移和黏附能力增强,这种变化可能与血浆内皮细胞生长因子水平增高有关。 | 祁学文 刘海峰 薛玉增 孔祥泉 Qingbo Xu Qingzhong Xiao | 2007 | 中国组织工程研究与临床康复2007，11，42： | 3 |
| 18 | Athermal 4-channel (de-)multiplexer in silicon nitride fabricated at low temperature显示文摘We have designed and realized an athermal 4-channel wavelength(de-)multiplexer in silicon nitride(Si N).Minimized thermal sensitivity is achieved in a wide wavelength range by using wide and narrow waveguides with low and different thermal-optic coefficients in the two arms of Mach–Zehnder interferometers(MZIs). The Si N core layer and Si O2 cladding layers are deposited by a low-temperature plasma-enhanced chemical vapor deposition process. The fabricated MZI filter exhibits a thermal sensitivity within 2.0 pm∕°C in a wavelength range of 55 nm to near 1300 nm. Then, an athermal(de-)multiplexer based on cascaded MZIs has been demonstrated with a crosstalk ≤-22 d B and a thermal sensitivity <4.8 pm∕°C for all four channels, reduced by 77% compared to a conventional Si N(de-)multiplexer. Owing to the passive operation and compatibility with the CMOS backend process, our devices have potential applications in 3 D integration of photonics and electronics. | SHIQI TAO QINGZHONG HUANG LIANGQIU ZHU JUN LIU YINGLU ZHANG YING HUANG YI WANG JINSONG XIA | 2018 | Photonics Research2018，6，7： | 3 |
| 19 | The Impact of the US Interest Rate Hike on Emerging Market Economies and the Belt and Road Initiative显示文摘Since the end of 2015,the US Federal Reserve has raised its benchmark interest rate nine times.This has led to capital outflows and asset depreciation in many emerging market economies.The present paper examines the factors that determine the financial volatility of emerging markets in the face of external shocks.By calculating the capital flows of 30 emerging markets from 1990 to 2018 and conducting panel regression,this paper finds that countries with good infrastructure facilities,a sound banking system and high economic growth have significantly lower cross-border financial risks.An implication from the empirical analysis is that emerging countries would benefit greatly by actively taking part in the Belt and Road Initiative.The framework of the Belt and Road Initiative allows emerging countries better access to China s massive consumer market to promote trade and long-term growth.Their quality of infrastructure can be improved through cooperation with China in infrastructure investment.They can also jointly establish a cooperative financial framework to enhance regional financial stability.These strategies will reduce systematic financial risks and counteract the negative impacts of US interest rate hikes. | Shuyu Wu Biliang Hu Qingzhong Pan | 2019 | China & World Economy2019，27，3： | 3 |
| 20 | Telemetering system and its application for fruit cultivation in greenhouses显示文摘Circuit of the temperature measurement equipment was improved in order to develop temperature telemetering system for cultivating fruit facilities.The traditional temperature measuring equipments used in monitoring temperature changes in greenhouse include mercury column,merbromine column,kerosene column glass rod thermometer and mechanical inductive thermometer.Compared with the traditional method of temperature measurement the new system reduces the labor requirement and promotes precision monitoring and control of the temperature.In addition,the temperature in the greenhouse was very accurate especially at night or in rainy and snowy weather.This new temperature telemetering system will promote the development of the fruit protection cultivation. | Zhang Daohui Wang Jiawei Zong Xiaojuan Wei Hairong Zhu Dongzi Liu Qingzhong | 2013 | International Journal of Agricultural and Biological Engineering2013，6，2： | 3 |
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