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| 1 | Fluxes of CH4 and N_2O from soil under a tropical seasonal rain forest in Xishuangbanna, Southwest China显示文摘从在在 Xishuangbanna 的热带季节的雨林下面的土壤的 CH4 和 N2O 流动,西南中国用关上的静态的房间技术和气体色层法方法被测量一年。三个处理被放在学习的地里:(A) 没有崽,有垃圾的(B) ,和有垃圾和幼苗的(C) 。结果证明在我们的学习的土壤是大气的 CH4 的一个水池和大气的 N2O 的来源。从处理 A, B,和 C 的观察吝啬的 CH4 流动是 50.0 ± 4.0, 35.9 ± 2.8, 31.6 ± 2.8 μ g C/(m2 · h ) ,分别地并且在 2003 的计算年度流动分别地是 4.1, 3.1,和 2.9 kgC/hm2。从处理 A, B,和 C 的观察吝啬的 N2O 流动是 30.9 ± 3.1, 28.2 ± 3.5, 50.2 ± 3 .7 μ g N/(m2 · h ) ,分别地并且在 2003 的计算年度流动分别地是 4.1, 3.1,和 2.9 kgC/hm2。从处理 A, B,和 C 的观察吝啬的 N2O 流动是 30.9 ± 3.1, 28.2 ± 3.5, 50.2 ± 3 .7 μ g N/(m2 · h ) ,分别地并且在 2003 的计算年度流动是 2.8, 2.6,和 3.7 kgN/hm 2 分别地。在 CH4 和 N2O 流动的季节变化在所有三个处理之中是重要的。垃圾的存在减少了 CH4 举起在湿季节期间(P < 0.05 ) ,然而并非在干旱期期间。调停幼苗的 N2O 排出物有类似的增加在期间湿并且干旱期,显示幼苗在两个季节增加了 N2O 排放。一种强壮的积极关系为处理 B 和处理 C 为所有三个处理,和在 CH4 流动和土壤温度之间的弱关系在 CH4 流动和土壤潮湿之间存在。N2O 流动为所有三个处理与土壤温度相关。 | YAN Yuping SHA Liqing CAO Min ZHENG Zheng TANG Jianwei WANG Yinghong ZHANG Yiping WANG Rui LIU Guangren WANG Yuesi SUN Yang | 2008 | Journal of Environmental Sciences2008，20，2： | 18 |
| 2 | Human umbilical cord blood stem cell transplantation for the treatment of chronic spinal cord injury Electrophysiological changes and long-term efficacy显示文摘Stem cell transplantation can promote functional restoration following acute spinal cord injury (injury time < 3 months), but the safety and long-term efficacy of this treatment need further exploration. In this study, 25 patients with traumatic spinal cord injury (injury time > 6 months) were treated with human umbilical cord blood stem cells via intravenous and intrathecal injection. The follow-up period was 12 months after transplantation. Results found that autonomic nerve functions were restored and the latent period of somatosensory evoked potentials was reduced. There were no severe adverse reactions in patients following stem cell transplantation. These experimental findings suggest that the transplantation of human umbilical cord blood stem cells is a safe and effective treatment for patients with traumatic spinal cord injury. | Liqing Yao Chuan He Ying Zhao Jirong Wang Mei Tang Jun Li Ying Wu Lijuan Ao Xiang Hu | 2013 | Neural Regeneration Research2013，8，5： | 14 |
| 3 | Soil respiration in tropical seasonal rain forest in Xishuangbanna, SW China显示文摘With the static opaque chamber and gas chromatography technique, from January 2003 to January 2004 soil respiration was investigated in a tropical seasonal rain forest in Xishuangbanna, SW China. In this study three treatments were applied, each with three replicates: A (bare soil), B (soil+litter), and C (soil+litter+seedling). The results showed that soil respiration varied seasonally, low from December 2003 to February 2004, and high from June to July 2004. The annual average values of CO2 efflux from soil respiration differed among the treatments at 1% level, with the rank of C (14642 mgCO2· m-2. h-1)>B (12807 mgCO2· m-2. h-1)>A (9532 mgCO2· m-2. h-1). Diurnal variation in soil respiration was not apparent due to little diurnal temperate change in Xishuangbanna. There was a parabola relationship between soil respiration and soil moisture at 1% level. Soil respiration rates were higher when soil moisture ranged from 35% to 45%. There was an exponential relationship between soil respiration and soil temperature (at a depth of 5cm in mineral soil) at 1% level. The calculated Q1o values in this study,ranging from 2.03 to 2.36, were very near to those of tropical soil reported. The CO2 efflux in 2003was 5.34 kgCO2· m-2. a-1 from soil plus litter plus seedling, of them 3.48 kgCO2· m-2. a-1 from soil (accounting for 62.5%), 1.19 kgCO2· m-2. a-1 from litter (22.3%) and 0.67 kgCO2·m-2. a-1 from seedling (12.5%). | SHA Liqing, ZHENG Zheng, TANG Jianwei, WANG Yinghong, ZHANG Yiping, CAO Min, WANG Rui, LIU Guangren, WANG Yuesi & SUN Yang Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China Graduate School of Chinese Academy of Sciences, Beijing 100039, China | 2005 | Science China Earth Sciences2005，48，z1： | 12 |
| 4 | Seasonal and inter-annual variation of surface roughness length and bulk transfer coefficients in a semiarid area显示文摘Here we report a multiyear study on the surface roughness length and bulk transfer coefficients over the degraded grassland and cropland surfaces in a semiarid area of China. Eddy covariance measurement and the meteorological profile observation data were used to analyze characteristics of these parameters on the diurnal, seasonal, and annual scales. Significant seasonal and annual variations of the aerodynamic roughness length are observed over the two surfaces. A large variation of kB-1 is measured during the day. Both kB-1 and the bulk transfer coefficients exhibit significant seasonal and annual variations. During the growing season (May to October), average Cd and Ch are 3.1×10-3 and 2.5×10-3 over the degrade grassland surface, and 4.7×10-3 and 3.1×10-3 over the cropland surface respectively. During the non-growing season, average Cd and Ch are 2.3×10-3 and 2.0×10-3 over the degrade grassland surface, and 2.9×10-3 and 2.2×10-3 over the cropland surface respectively. | FENG JianWu LIU HuiZhi WANG Lei DU Qun SHI LiQing | 2012 | Science China Earth Sciences2012，55，2： | 11 |
| 5 | Indirectly extruded biodegradable Zn-0.05wt%Mg alloy with improved strength and ductility: In vitro and in vivo studies显示文摘As compared to permanent orthopedic implants for load-bearing applications, biodegradable orthopedic implants have the advantage of no need for removing after healing, but they suffer from the 'trilemma' problem of compromising among sufficiently high mechanical properties, good biocompatibility and proper degradation rate conforming to the growth rate of new bones. In the present work, in vitro and in vivo studies of a Zn-0.05 wt%Mg alloy(namely, Zn-0.05 Mg alloy) were conducted with pure Zn as a control. The Zn-0.05 Mg alloy is composed of a small amount of Mg_2 Zn11 phase embedded in the refined Zn matrix with an average grain size of ~20 μm. The addition of 0.05 wt% Mg into Zn significantly increases the ultimate tensile strength up to 225 MPa and the elongation to fracture to 26%, but has little influence on the in vitro degradation rate. Both Zn and Zn-0.05 Mg alloy exhibit homogeneous in vitro degradation with a rate of about 0.15 mm/year. Based on the cytotoxicity evaluation, Zn and Zn-0.05 Mg alloy do not induce toxicity to L-929 cells, indicating that they have little toxicity to the general functions of the animal. An in vivo biocompatibility study of Zn and Zn-0.05 Mg alloy samples by placing them in a rabbit model for 4.12 and 24 weeks, respectively did not show any inflammatory cells, and demonstrated that new bone tissue formed at the bone/implant interface, suggesting that Zn and Zn-0.05 Mg alloy promote the formation of new bone tissue. The in vivo degradation of Zn and Zn-0.05 Mg alloy does not bring harm to the important organs and their cell structures. More interestingly, Zn and Zn-0.05 Mg alloy exhibit strong antibacterial activity against Escherichia coli and Staphylococcus aureus. The above results clearly demonstrate that the Zn-0.05 Mg alloy could be a potential biodegradable orthopedic implant material. | Chi Xiao Liqing Wang Yuping Ren Shineng Sun Erlin Zhang Chongnan Yan Qi Liu Xiaogang Sun Fenyong Shou Jingzhu Duan Huang Wang Gaowu Qin | 2018 | Journal of Materials Science & Technology2018，34，9： | 11 |
| 6 | Dynamical Solidification Behaviors and Metal Flow during Continuous Semisolid Extrusion Process of AZ31 Alloy显示文摘In this paper, a novel near-net-shape forming process, continuous semisolid extrusion process (CSEP) of AZ31 alloy was proposed, and the dynamical solidification behaviors and metal flow during the process were firstly investigated. During casting AZ31 alloy by this process, non-uniform microstructure distributions and non-equilibrium solidification region near the roll surface were found in the roll-shoe gap. Microstructural evolution from dendrite to rosette and spherical grains was observed during the casting by CSEP. Casting temperature, roll-shoe gap width and cooling ability have great effect on casting process and metal flow, so these factors should be carefully controlled, a proper casting temperature of 710-750℃ is suggested. The white α phases were strongly stretched during the processing, and the remnant liquids are correspondingly distributes along the solid phase boundaries and also show stripped lines. | Renguo Cuan Liqing Chen Jiangping Li Fuxing Wang | 2009 | Journal of Materials Science & Technology2009，25，3： | 10 |
| 7 | reatment of allergic inflammation and hyperresponsiveness by a simple compound, Bavachinin, isolated from Chinese herbs显示文摘气喘的发炎被一种类型调停 2 助手 T 房间(Th2 ) cytokine 反应,和堵住的 Th2 cytokine 生产被证明有一个有势力治疗学对气喘的发炎的效果。用 IL-4-green 荧光灯蛋白质(GFP ) 记者老鼠,我们表明了那 Bavachinin,从中国植物孤立的单个混合物,显著地禁止的 Th2 cytokine 生产包括 IL-4, IL-5 和 IL-13。尤其是,在 ovalbumin (卵) 的这复合几乎完全堵住的发炎敏化动物气喘模型。而且,我们证明这化学药品有选择地影响 GATA-3 的水平,由影响 GATA-3 mRNA 的稳定性最可能。第一次,我们的结果证明这单个混合物的潜在的治疗学的价值源于中国植物。 | Xi Chen Ti Wen Jun Wei Zhenzhou Wu Puyue Wang Zhangyong Hong Liqing Zhao Bin Wang Richard Flavell Shumei Gao Min Wang Zhinan Yin | 2013 | Cellular & Molecular Immunology2013，10，6： | 9 |
| 8 | A detailed investigation of low latitude tweek atmospherics observed by the WHU ELF/VLF receiver:2.Occurrence features and associated ionospheric parameters显示文摘As a companion paper to Zhou RX et al.(2020),this study describes application of the automatic detection and analysis module to identify all the tweek atmospherics detectible in the WHU ELF/VLF receiver data collected at Suizhou station during the period of 3 February through 29 February 2016.Detailed analysis of the identified low-latitude tweek events reveals that the occurrence rate varies considerably—from 800 to 6000 tweeks per day,and exhibits a strong diurnal and local time dependence,the peak occurring before local midnight.The diurnal variation of identified tweeks was similar to that of the lightning data obtained by the World-Wide Lightning Location Network(WWLLN)..Estimates of the propagation distance and ionospheric reflection height of tweek atmospherics suggest that the majority(~92%)of the low latitude tweeks originate from the lightning activity within a radius of 4000 km and that they are very likely to reflect from the lower ionospheric D-region at the height range of 75–85 km.At these lower ionospheric reflection altitudes,~74%of the corresponding electron densities from the tweek spectral measurements are within 24.5–27.5 cm^-3.The daily variation of estimated D-region electron densities in the considered period(February 2016)also exhibits a small overall increasing trend from early to later in the month. | Juan Yi XuDong Gu Wen Cheng XinYue Tang Long Chen BinBin Ni RuoXian Zhou ZhengYu Zhao Qi Wang LiQing Zhou | 2020 | Earth and Planetary Physics2020，4，3： | 8 |
| 9 | A detailed investigation of low latitude tweek atmospherics observed by the WHU ELF/VLF receiver:Ⅰ. Automatic detection and analysis method显示文摘As a dispersive wave mode produced by lightning strokes, tweek atmospherics provide important hints of lower ionospheric(i.e., D-region) electron density. Based on data accumulation from the WHU ELF/VLF receiver system, we develop an automatic detection module in terms of the maximum-entropy-spectral-estimation(MESE) method to identify unambiguous instances of low latitude tweeks.We justify the feasibility of our procedure through a detailed analysis of the data observed at the Suizhou Station(31.57°N, 113.32°E) on17 February 2016. A total of 3961 tweeks were registered by visual inspection;the automatic detection method captured 4342 tweeks, of which 3361 were correct ones, producing a correctness percentage of 77.4%(= 3361/4342) and a false alarm rate of 22.6%(= 981/4342).A Short-Time Fourier Transformation(STFT) was also applied to trace the power spectral profiles of identified tweeks and to evaluate the tweek propagation distance. It is found that the fitting accuracy of the frequency–time curve and the relative difference of propagation distance between the two methods through the slope and through the intercept can be used to further improve the accuracy of automatic tweek identification. We suggest that our automatic tweek detection and analysis method therefore supplies a valuable means to investigate features of low latitude tweek atmospherics and associated ionospheric parameters comprehensively. | RuoXian Zhou XuDong Gu KeXin Yang GuangSheng Li BinBin Ni Juan Yi Long Chen FuTai Zhao ZhengYu Zhao Qi Wang LiQing Zhou | 2020 | Earth and Planetary Physics2020，4，2： | 7 |
| 10 | Effect of illumination intensity and light application time on secondary organic aerosol formation from the photooxidation of α-pinene显示文摘Secondary organic aerosol (SOA) formation from hydroxyl radical (OH.) initiated photooxidation of α-pinene was investigated in a home-made smog chamber. The size distribution of SOA particles was measured using aerodynamic particle sizer spectrometer. The effects of illumination intensity and light application time on SOA formation for α-pinene were evaluated. Experimental results show that the concentration of SOA particles increased significantly with an increasing of illumination intensity, and the light application time, the concentration, and the size of SOA particles were also increased. In addition, the factors influencing the formation of SOA were discussed. In addition, this article compared the effect of α-pinene with that of toluene, and discussed the contribution of α-pinene to SOA formation. | LIU Xianyun, ZHANG Weijun, HUANG Mingqiang, WANG Zhenya, HAO Liqing, ZHAO Wenwu Laboratory of Environment Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences,Hefei 230031, China. | 2009 | Journal of Environmental Sciences2009，21，4： | 7 |
| 11 | Real-time detection of individual secondary organic aerosol particle from photooxidation of toluene using aerosol time of flight mass spectrometer显示文摘Photooxidation of the aromatic hydrocarbon toluene and its subsequent reactions were carried out using UV-irradiation of toluene/CH3ONO/NO/air mixtures in a home-made smog chamber. The secondary organic aerosols could be formed after those oxidation products of semi-volatile or- ganic compounds were partitioned between gas phase and particle phase. The aerosol time of flight mass spectrometer (ATOFMS) was used to measure size and molecular composition of individual secondary organic aerosol particle. Size distribution and chemical composition of secondary organic aerosol were got in real time. | WANG Zhenya HAO Liqing ZHOU Liuzhu GUO Xiaoyong ZHAO Wenwu FANG Li ZHANG Weijun | 2006 | Science China Chemistry2006，49，3： | 5 |
| 12 | Multifunctional oral delivery systems for enhanced bioavailability of therapeutic peptides/proteins显示文摘In last few years, therapeutic peptides/proteins are rapidly growing in drug market considering their higher efficiency and lower toxicity than chemical drugs. However, the administration of therapeutic peptides/proteins is mainly limited in parenteral approach. Oral therapy which was hampered by harsh gastrointestinal environment and poorly penetrating epithelial barriers often results in low bioavailability(less than 1%–2%). Therefore, delivery systems that are rationally designed to overcome these challenges in gastrointestinal tract and ameliorate the oral bioavailability of therapeutic peptides/proteins are seriously promising. In this review, we summarized various multifunctional delivery systems, including lipid-based particles, polysaccharide-based particles, inorganic particles, and synthetic multifunctional particles that achieved effective oral delivery of therapeutic peptides/proteins. | Ying Han Zhonggao Gao Liqing Chen Lin Kang Wei Huang Mingji Jin Qiming Wang You Han Bae | 2019 | Acta Pharmaceutica Sinica B2019，9，5： | 5 |
| 13 | Experimental study of photooxidation products of ethylbenzene显示文摘Smog chamber experiments were performed to investigate the composition of products formed from photooxidation of aromatic hydrocarbon ethylbenzene.Vacuum ultraviolet photoionization mass spectrometer and aerosol time-of-flight mass spectrometer were used to measure the products in the gas and particle phases in real-time.Experimental results demonstrated that ethylphenol,methylglyoxal,phenol,benzaldehyde,and 2-ethylfurane were the predominant photooxidation products in both the gas and particle phases.However,there were some dierences between detected gas phase products and those of particle phase,for example,2-ethylfurane,ethylglyoxylic acid,nitroethylbenzene,3,4-dioxopentanal and ethyl-nitrophenol were only existing in the particle-phase. The possible reaction mechanisms leading to these products were also discussed and proposed. | Mingqiang Huang Weijun Zhang Liqing Hao Zhenya Wang Li Fang Ruihong Kong Xiaobin Shan Fuyi Liu Liusi Sheng | 2010 | Journal of Environmental Sciences2010，22，10： | 5 |
| 14 | Study on the α-cyclodextrin/poly(ethylene glycol) self-assembly supramolecular nanoparticles for drug delivery显示文摘This paper reports the synthesis and drug delivery properties of a novel supramolecular nanoparticle.α-Cyclodextrins(α-CD) were threaded on cinnamic acid modified poly(ethylene glycol) to form inclusion complex nanoparticles by supramolecular self-assemble.The anti-tumor drug doxorubicin was loaded in the nanoparticles and released in vitro to study the drug release behavior and the anti-tumor effects.The structure and morphology of the nanoparticles were characterized by nuclear magnetic resonance,X-ray diffraction,ultraviolet absorbance,dynamic laser scattering,scanning electronic microscopy,transmission electron microscopy and atom force microscopy.The distribution of the drug loaded nanoparticles in cells and the anti-tumor effects were studied by confocal laser microscopy.The results demonstrate that the supramolecular nanoparticle is biocompatible and it is a promising carrier for drug delivery systems. | LI Yuan,JI Li,WANG Gang,SONG LiQing,HE Bin,LI Li,NIE Yu,WU Yao & GU ZhongWei National Engineering Research Center for Biomaterials,Sichuan University,Chengdu 610064,China | 2010 | Science China Chemistry2010，53，3： | 5 |
| 15 | Multi-objective optimization design of wheat centralized seed feeding device based on particle swarm optimization (PSO) algorithm显示文摘In order to solve the problem of interaction between multiple evaluation indexes of seed metering performance under multiple factors of centralized seed feeding device,a multi-objective optimization of structure based on particle swarm optimization(PSO)algorithm was proposed in this paper.The wheat centralized seed feeding device was taken as the research object,and the experimental factors were cone angle of type hole,working speed and seed filling gap.The working process of wheat centralized seed feeding device was simulated by discrete element method(DEM).The average seed number of type hole,the variation coefficient of the average seed number of type hole,and the maximum tangential force between seed and seed feeding mechanism were selected as the evaluation indexes.Through the variance analysis of the evaluation indexes by the experimental factors,the optimization objective function was constructed.Using PSO algorithm,the multi-objective optimization was carried out for the wheat centralized seed feeding device.The optimization results show that the best structural combination parameters of the wheat centralized seed feeding device are the hole cone angle of 31.6°and the seed filling gap of 4.6 mm.The validity of the method was verified by simulation and field test.The results show that the PSO algorithm multi-objective optimization method proposed in this paper can provide a reference for the structural improvement and optimal design of the centralized seed feeding device. | Qingqing Wang Zhaodong Li Weiwei Wang Chunling Zhang Liqing Chen Ling Wan | 2020 | International Journal of Agricultural and Biological Engineering2020，13，6： | 4 |
| 16 | Influence of Deep Cryogenic Treatment on Microstructures and Mechanical Properties of an Ultrafine-Grained WC-12Co Cemented Carbide显示文摘Effect of deep cryogenic treatment(DCT) on the microstructures and mechanical behavior of ultrafine-grained WC-12 Co cemented carbide was investigated by using XRD, SEM, and DSC. The phase transformations of pure Co and binder phase Co in cemented carbide were analyzed in detail to correlate the strengthening mechanism with its a→ε phase transition. The results show that DCT resulted in a slight increase in hardness and bending strength of ultrafinegrained WC-12 Co cemented carbide. For the ultrafine-grained cemented carbide after DCT, there is no significant change in the microstructure and the elemental distribution of the cemented carbides, but the fractured morphology shows a feature of plastic deformation. In the cases of pure Co and the binder phase Co in WC-12 Co cemented carbide, they exhibit different features of phase transformation. The improvement of mechanical property of cemented carbide can be attributed to the increased amount of e-Co in WC-12 Co composites after DCT. | Hejia Zhang Liqing Chen Jing Sun Wenguang Wang Quanzhao Wang | 2014 | Acta Metallurgica Sinica(English Letters)2014，27，5： | 4 |
| 17 | Pingchuan formula(平喘方) improves allergic asthma in mice through inhibiting nuclear factor-kappa B/mitogen-activated protein kinase signaling pathway显示文摘OBJECTIVE:To examine the role and decipher the mechanism of Pingchuan formula(平喘方,PCF)in treating allergic asthma.METHODS:The mice were treated with saline,dexamethasone(DXM)and PCF for 1 week after the asthma model was established and their respiratory function including respiratory resistance(RI),pulmonary dynamic compliance(Cdyn)and maximum voluntary ventilation(MVV)were measured.In addition,cellular changes in bronchoalveolar lavage fluid(BALF)and pathological changes in lung biopsy as well as the expression level ofα-smooth muscle actin(α-SMA),transforming growth factor-beta1(TGF-β1)in BALF and interleukin-5(IL-5),interleukin-13(IL-13),tumor necrosis factor-α(TNF-α),interferon-γ(IFN-γ),nuclear factor-kappa B-p65(NF-κBp65),inhibitor-αof nuclear transcription factorκB(IκBα),p38 mitogen-activated protein kinase(p38 MAPK),c-jun n-terminal kinase(JNK)and its phosphorylated proteins in lung tissue were also examined and compared among different groups.RESULTS:Our data suggested that the respiratory functions were significantly improved and the pathological changes ameliorated in the DXM group and the PCF group compared to the model group.Both DXM and PCF effectively decreased the number of eosinophils,lymphocytes,and neutrophils in BAL as well as the secretion ofα-SMA and TGF-β1,IL-5,IL-13,while increased the expression of TNF-αand IFN-γ.Furthermore,our study indicated that the NF-κBp65,IκBα,p38 MAPK and JNK pathways were inhibited under the treatment of PCF.CONCLUSION:Our data indicated that PCF can attenuate the inflammatory response in asthma through inhibiting the NF-κB/MAPK signaling pathway.This study not only supported the use of PCF in allergic asthma in clinic but also shed light upon afurther understanding of the disease pathogenesis. | WU Mingyun YU Jianer BAI Li XUE Zheng JIANG Shenhua LI Liqing PIAO Xiang XU Wanchao WANG Jiani SHEN Qian | 2021 | Journal of Traditional Chinese Medicine2021，41，6： | 4 |
| 18 | Systematic assessment of dredged sludge dewaterability improvement with different organic polymers based on analytic hierarchy process显示文摘Organic polymeric flocculants are commonly used in improving dredged sludge dewaterability, but less attention has been paid to residual water quality. In this paper, the effects of cationic etherified starch(CS) and poly-dimethyl diallyl ammonium chloride(PDDA) on dredged sludge dewatering efficiency and residual water quality of Baiyangdian lake were comprehensively investigated and evaluated by analytic hierarchy process(AHP). The results indicated that PDDA had stronger electrical effect and flocculation performance compared with CS, resulting in more efficient dewatering performance. PDDA can reduce the pollutants of discharged residual water, while CS significantly promoted the increase of NH_(4)^(+)-N and NO_(3)^(–)-N in the residual water. The increase of NH_(4)^(+)-N in the residual water of CS was due to the release of dredged sludge, while the increase of NO_(3)^(-)-N was introduced by CS leaching. AHP showed that PDDA performed better in flocculation treatment of dredged sludge than other organic polymers. This work provides a method for optimization of flocculation treatment for dredged sludge dewaterability. | Zhenzhen Song Hongyu Gao Wanwan Liu Liqing Li Weijun Zhang Dongsheng Wang | 2021 | Journal of Environmental Sciences2021，33，5： | 4 |
| 19 | Mean square stability for Markov jump Boolean networks显示文摘In this paper, one of the stability definitions of Markov jump Boolean networks(MJBNs), called mean square stability(MSS), is investigated. Some necessary and sufficient conditions are presented to guarantee the MSS of such MJBNs. Moreover, one of the necessary and sufficient conditions for MSS is obtained in terms of linear programming, which implies that MSS is equivalent to global stability with probability 1 for MJBNs. Furthermore, the construction of Lyapunov function is given and also another theorem based on the Lyapunov function is derived to ensure the MSS of MJBNs. Finally, a numerical example is provided to illustrate the profits of our results. | Liqing WANG Mei FANG Zheng-Guang WU | 2020 | Science China(Information Sciences)2020，63，1： | 3 |
| 20 | Performance analysis and test of a maize inter-row self-propelled thermal fogger chassis显示文摘In view of the difficulties in weeding and plant protection in the middle and late period of maize planting,this paper proposed a self-propelled thermal fogger chassis.According to the theoretical calculation and agronomic requirements for maize planting,the structure and working principles of the self-propelled thermal fogger chassis were introduced.On this basis,the multi-body dynamics model of chassis structure was established,and the chassis traction,steering and obstacle surmounting performances were also analyzed.Then the rationality and the feasibility of the design were verified through the furrow running test and test equipped with thermal fogger.Test results showed that,the traction performance improves with the decrease of soil deformation index and increase of cohesion,and when track pre-tensioning force was about 1000 N,the machine had a good traction performance;with the decrease of the soil deformation index and the increase of cohesive force,the stability of the single side brake turn of the chassis becomes better;on the contrary,with the increase of the tightness of the crawler,the steering radius turns smaller and the steering stability becomes worse.Under heavy clay,with the pre-tensioning of 1000 N,the machine has better steering stability and smaller turning radius.The obstacle-surmounting simulation result shows that on sandy soil road,the maximum climbing angle for the chassis is 42°,the height of vertical obstacle crossing is 170 mm and the trench width is 440 mm.The study provides a reference for the design of plant protection machinery in the middle and late stages of maize planting. | Liqing Chen Pinpin Wang Peng Zhang Quan Zheng Jin He Qingjie Wang | 2018 | International Journal of Agricultural and Biological Engineering2018，11，5： | 3 |
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