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| 1 | Precise orbit determination of Beidou Satellites with precise positioning显示文摘Chinese Beidou satellite navigation system constellation currently consists of eight Beidou satellites and can provide preliminary service of navigation and positioning in the Asia-Pacific Region.Based on the self-developed software Position And Navigation Data Analysis(PANDA) and Beidou Experimental Tracking Stations (BETS),which are built by Wuhan University,the study of Beidou precise orbit determination,static precise point positioning (PPP),and high precision relative positioning,and differential positioning are carried out comprehensively.Results show that the radial precision of the Beidou satellite orbit determination is better than 10 centimeters.The RMS of static PPP can reach several centimeters to even millimeters for baseline relative positioning.The precision of kinematic pseudo-range differential positioning and RTK mode positioning are 2-4 m and 5-10 cm respectively,which are close to the level of GPS precise positioning.Research in this paper verifies that,with support of ground reference station network,Beidou satellite navigation system can provide precise positioning from several decimeters to meters in the wide area and several centimeters in the regional area.These promising results would be helpful for the implementation and applications of Beidou satellite navigation system. | SHI Chuang ZHAO QiLe LI Min TANG WeiMing HU ZhiGang LOU YiDong ZHANG HongPing NIU XiaoJi LIU JingNan | 2012 | Science China Earth Sciences2012，55，7： | 61 |
| 2 | Effects of Cu,Fe and Co addition on the glass-forming ability and mechanical properties of Zr-Al-Ni bulk metallic glasses显示文摘The thermal stability,glass-forming ability(GFA) and mechanical properties of Zr60Al15Ni25xTMx(TM = Cu,Fe and Co,x = 0-10) bulk metallic glasses(BMGs) were systematically investigated.Additional 5-10 at.% Cu greatly enhances the thermal stability and GFA of the base alloy.Zr60Al15Ni15Cu10 BMG exhibits the largest supercooled liquid region of 104 K and critical diameter of 18 mm.However,addition of 5-10 at.% Fe or Co decrease the thermal stability and GFA.In addition,the plasticity of the BMG can be improved by adding of Cu,while the strength is decreased slightly.Zr60Al15Ni20Cu5 BMG has the largest plastic strain of 5.5% with a yield stress of 1755 MPa and Young's modulus of 83 GPa.Addition of Co brings an increase of strength but a lower of plasticity,and additional Fe reduces the strength and plasticity simultaneously. | LI YanHui ZHANG Wei DONG Chuang AKIHIRO Makino | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，12： | 19 |
| 3 | Upper ocean near-inertial response to 1998 Typhoon Faith in the South China Sea显示文摘During the South China Sea monsoon experiment (SCSMEX),three autonomous temperature line acquisition system (ATLAS) buoys with acoustic Doppler current profiler (ADCP) were moored in the South China Sea to measure temperature,salinity and current velocity.Typhoon Faith passed through about 250 km south to one of the mooring buoys located at 12 58.5 N,114 24.5 E from December 11 to 14,1998.The data analysis indicates that the typhoon winds induce a great increase in the kinetic energy at near-inertial frequencies with two maxima in the mixed layer and thermocline.The near-inertial oscillations were observed at the upper 270 m in the wake of Typhoon Faith.The oscillations were originally excited in the sea surface layer and propagated downward.The amplitudes of the oscillations decrease with depth except in the thermocline.The near-inertial oscillation signals are also remarkable in temperature and salinity fields. | SUN Lu ZHENG Quan'an TANG Tswen-Yung CHUANG Wen-Ssn LI Li HU Jianyu WANG Dongxiao | 2012 | Acta Oceanologica Sinica2012，31，2： | 15 |
| 4 | Multi-scale design and optimization for solid-lattice hybrid structures and their application to aerospace vehicle components显示文摘By integrating topology optimization and lattice-based optimization,a novel multi-scale design method is proposed to create solid-lattice hybrid structures and thus to improve the mechanical performance as well as reduce the structural weight.To achieve this purpose,a two-step procedure is developed to design and optimize the innovative structures.Initially,the classical topology optimization is utilized to find the optimal material layout and primary load carrying paths.Afterwards,the solid-lattice hybrid structures are reconstructed using the finite element mesh based modeling method.And lattice-based optimization is performed to obtain the optimal crosssection area of the lattice structures.Finally,two typical aerospace structures are optimized to demonstrate the effectiveness of the proposed optimization framework.The numerical results are quite encouraging since the solid-lattice hybrid structures obtained by the presented approach show remarkably improved performance when compared with traditional designs. | Chuang WANG Jihong ZHU Manqiao WU Jie HOU Han ZHOU Lu MENG Chenyang LI Weihong ZHANG | 2021 | Chinese Journal of Aeronautics2021，34，5： | 14 |
| 5 | Silicon assistant carbothermal reduction for SiC powders显示文摘The silicon assistant method to increase the reaction yield of carbothermal reduction of silica at a lower temperature is reported. The effect of silicon on the carbothermal reduction process has been investigated in detail. Compared with traditional reduction, the introduction of silicon can change the reaction path and further increase the conversion of silicon carbide at a lower temperature. It is considered that the assistant reduction consists of three steps: vaporizing and melting of silicon, formation of silicon monoxide, and synthesis of silicon carbide. The morphology of the synthesized SiC powders through the silicon assistant method can be affected apparently by the experimental temperature. | Kezhi Li Jian Wei Hejun Li Chuang Wang Gengsheng Jiao | 2008 | Journal of University of Science and Technology Beijing2008，15，4： | 12 |
| 6 | Effect of sodium alginate on reverse flotation of hematite and its mechanism显示文摘Given the gradual increase in the chlorite content of hematite ores, pulp properties seriously deteriorate during flotation. The traditional anion reverse flotation of hematite cannot effectively eliminate the effects of chlorite, leading to a significant decrease in the total Fe(TFe) grade of the concentrate. In this work, the effect of sodium alginate on the reverse flotation of hematite was systematically investigated. Flotation tests of artificially mixed ores were conducted, and the results showed that sodium alginate can significantly improve the removal rates of quartz and chlorite. The adsorption measurements, infrared spectroscopy, and contact angle tests demonstrated that sodium alginate adsorbs on the quartz surface by chelating with calcium ions, thereby weakening the steric hindrance of oleate ions and increasing the adsorption capacity of sodium oleate to ultimately improve the removal rate of quartz. Furthermore, owing to its lower density and fine particle size, chlorite is easily entrained into the foam layer. Sodium alginate dramatically increases the liquid-to-gas ratio of the foam layer by increasing pulp viscosity, thereby increasing the entrainment rate of chlorite and finally improving its removal rate. The core content of this thesis bears significance in improving the Fe grade in the reverse flotation of chlorite-containing hematite. | Ya-feng Fu Wan-zhong Yin Bin Yang Chuang Li Zhang-lei Zhu Dong Li | 2018 | International Journal of Minerals,Metallurgy and Materials2018，25，10： | 10 |
| 7 | Dopamine D4 Receptor Gene Associated with the Frontal-Striatal-Cerebellar Loop in Children with ADHD: A Resting-State fMRI Study显示文摘Attention deficit hyperactivity disorder(ADHD)is a common childhood neuropsychiatric disorder that has been linked to the dopaminergic system. This study aimed to investigate the effects of regulation of the dopamine D4 receptor(DRD4) on functional brain activity during the resting state in ADHD children using the methods of regional homogeneity(Re Ho) and functional connectivity(FC). Resting-state functional magnetic resonance imaging data were analyzed in 49 children with ADHD. All participants were classified as either carriers of the DRD44-repeat/4-repeat(4 R/4 R) allele(n = 30) or the DRD42-repeat(2 R) allele(n = 19). The results showed that participants with the DRD4 2 R allele had decreased Re Ho bilaterally in the posterior lobes of the cerebellum, while Re Ho was increased in the left angular gyrus. Compared with participants carrying the DRD4 4 R/4 R allele, those with the DRD4 2 R allele showed decreased FC to the left angular gyrus in the left striatum, right inferior frontal gyrus, and bilateral lobes of the cerebellum. The increased FC regions included the left superior frontal gyrus, medial frontal gyrus, and rectus gyrus. These data suggest that the DRD4 polymorphisms are associated with localized brain activity and specific functional connections, including abnormality in the frontal-striatal-cerebellar loop. Our study not only enhances the understanding of the correlation between the cerebellar lobes and ADHD, but also provides an imaging basis for explaining the neural mechanisms underlying ADHD in children. | ANDan Qian Xin Wang Huiru Liu Jiejie Tao Jiejie Zhou Qiong Ye Jiance Li Chuang Yang Jingliang Cheng Ke Zhao Meihao Wang | 2018 | Neuroscience Bulletin2018，34，3： | 10 |
| 8 | High degree of pharmacokinetic compatibility exists between the five-herb medicine XueBiJing and antibiotics comedicated in sepsis care显示文摘Managing the dysregulated host response to infection remains a major challenge in sepsis care. Chinese treatment guideline recommends adding Xue Bi Jing, a five-herb medicine, to antibioticbased sepsis care. Although adding Xue Bi Jing further reduced 28-day mortality via modulating the host response, pharmacokinetic herbedrug interaction is a widely recognized issue that needs to be studied.Building on our earlier systematic chemical and human pharmacokinetic investigations of Xue Bi Jing, we evaluated the degree of pharmacokinetic compatibility for Xue Bi Jing/antibiotic combination based on mechanistic evidence of interaction risk. Considering both Xue Bi Jing-antibiotic and antibiotic-Xue Bi Jing interaction potential, we integrated informatics-based approach with experimental approach and developed a compound pair-based method for data processing. To reflect clinical reality, we selected for study Xue Bi Jing compounds bioavailable for drug interactions and 45 antibiotics commonly used in sepsis care in China. Based on the data of interacting with drug metabolizing enzymes and transporters, no Xue Bi Jing compound could pair, as perpetrator, with the antibiotics. Although some antibiotics could,due to their inhibition of uridine 50-diphosphoglucuronosyltransferase 2 B15, organic anion transporters1/2 and/or organic anion-transporting polypeptide 1 B3, pair with senkyunolide I, tanshinol and salvianolic acid B, the potential interactions(resulting in increased exposure) are likely desirable due to these Xue Bi Jing compounds’ low baseline exposure levels. Inhibition of aldehyde dehydrogenase by 7 antibiotics probably results in undesirable reduction of exposure to protocatechuic acid from Xue Bi Jing.Collectively, Xue Bi Jing/antibiotic combination exhibited a high degree of pharmacokinetic compatibility at clinically relevant doses. The methodology developed can be applied to investigate other drug combinations. | Jian Li Olajide E.Olaleye Xuan Yu Weiwei Jia Junling Yang Chuang Lu Songqiao Liu Jingjing Yu Xiaona Duan Yaya Wanga Kai Dong Rongrong He Chen Cheng Chuan Li | 2019 | Acta Pharmaceutica Sinica B2019，9，5： | 10 |
| 9 | Atorvastatin combined with low-dose dexamethasone for vascular endothelial cell dysfunction induced by chronic subdural hematoma显示文摘Atorvastatin has been shown to be a safe and effective non-surgical treatment option for patients with chronic subdural hematoma.However,treatment with atorvastatin is not effective in some patients,who must undergo further surgical treatment.Dexamethasone has anti-inflammatory and immunomodulatory effects,and low dosages are safe and effective for the treatment of many diseases,such as ankylosing spondylitis and community-acquired pneumonia.However,the effects of atorvastatin and low-dose dexamethasone for the treatment of chronic subdural hematoma remain poorly understood.Hematoma samples of patients with chronic subdural hematoma admitted to the General Hospital of Tianjin Medical University of China were collected and diluted in endothelial cell medium at 1:1 as the hematoma group.Atorvastatin,dexamethasone,or their combination was added to the culture medium.The main results were as follows:hopping probe ion conductance microscopy and permeability detection revealed that the best dosages to improve endothelial cell permeability were 0.1μM atorvastatin and 0.1μM dexamethasone.Atorvastatin,dexamethasone,or their combination could markedly improve the recovery of injured endothelial cells.Mice subcutaneously injected with diluted hematoma solution and then treated with atorvastatin,dexamethasone,or their combination exhibited varying levels of rescue of endothelial cell function.Hopping probe ion conductance microscopy,western blot assay,and polymerase chain reaction to evaluate the status of human cerebral endothelial cell status and expression level of tight junction protein indicated that atorvastatin,dexamethasone,or their combination could reduce subcutaneous vascular leakage caused by hematoma fluid.Moreover,the curative effect of the combined treatment was significantly better than that of either single treatment.Expression of Krüppel-like factor 2 protein in human cerebral endothelial cells was significantly increased,as was expression of the tight junction protein and vascular permeability marker vascular endothelial cadherin in each treatment group compared with the hematoma stimulation group.Hematoma fluid in patients with chronic subdural hematoma may damage vascular endothelial cells.However,atorvastatin combined with low-dose dexamethasone could rescue endothelial cell dysfunction by increasing the expression of tight junction proteins after hematoma injury.The effect of combining atorvastatin with low-dose dexamethasone was better than that of atorvastatin alone.Increased expression of Krüppel-like factor 2 may play an important role in the treatment of chronic subdural hematoma.The animal protocols were approved by the Animal Care and Use Committee of Tianjin Medical University of China on July 31,2016(approval No.IRB2016-YX-036).The study regarding human hematoma samples was approved by the Ethics Committee of Tianjin Medical University of China on July 31,2018(approval No.IRB2018-088-01). | Yue-Shan Fan Bo Wang Dong Wang Xin Xu Chuang Gao Ying Li Shu Zhang Gui-Li Yang Xiao Liu Rong-Cai Jiang Jian-Ning Zhang | 2021 | Neural Regeneration Research2021，16，3： | 9 |
| 10 | Regularized least-squares migration of simultaneous-source seismic data with adaptive singular spectrum analysis显示文摘Simultaneous-source acquisition has been recognized as an economic and efficient acquisition method, but the direct imaging of the simultaneous-source data produces migration artifacts because of the interference of adjacent sources. To overcome this problem, we propose the regularized least-squares reverse time migration method(RLSRTM)using the singular spectrum analysis technique that imposes sparseness constraints on the inverted model. Additionally,the difference spectrum theory of singular values is presented so that RLSRTM can be implemented adaptively to eliminate the migration artifacts. With numerical tests on a flat layer model and a Marmousi model, we validate the superior imaging quality, efficiency and convergence of RLSRTM compared with LSRTM when dealing with simultaneoussource data, incomplete data and noisy data. | Chuang Li Jian-Ping Huang Zhen-Chun Li Rong-Rong Wang | 2017 | Petroleum Science2017，14，1： | 9 |
| 11 | Resting state brain default network in patients with motor aphasia resulting from cerebral infarction显示文摘To explore the brain default mode network(DMN)in patients with motor aphasia resulting from cerebral infarction,we used resting state functional magnetic resonance imaging(fMRI)to investigate the possible neural mechanism.Thirteen patients with motor aphasia resulting from cerebral infarction and ten matched controls were selected in this study.All subjects were examined using resting state fMRI.We chose the posterior cingulate cortex as the region of interest and then used functional connectivity analysis to calculate the DMN functional connectivity and analyze differences in the functional connectivity between the two groups.Compared with normal controls,aphasia patient group showed a significantly decreased functional connectivity in bilateral medial frontal gyrus,superior frontal gyrus,middle frontal gyrus,middle temporal gyrus,precuneus and cuneus.The aphasia patient group showed increased functional connectivity mainly in bilateral medial frontal gyrus,middle frontal gyrus,inferior frontal gyrus,precentral gyrus,insula.The DMN in cerebral infarction motor aphasia patients showed significantly decreased functional connectivity in the resting state.The DMN most likely plays an important role in motor aphasia resulting from cerebral infarction.Furthermore,functional connectivity in the brain regions surrounding the left and right Broca’s areas was significantly enhanced due to compensatory mechanisms.This may be helpful for the recovery of language function in cerebral infarction patients with motor aphasia. | Xin Wang Meihao Wang Weizhuo Wang Huiru Liu Jiejie Tao Chuang Yang Jiance Li | 2014 | Chinese Science Bulletin2014，59，31： | 9 |
| 12 | Challenges and Opportunities of AI-Enabled Monitoring, Diagnosis & Prognosis: A Review显示文摘Prognostics and Health Management(PHM),including monitoring,diagnosis,prognosis,and health management,occupies an increasingly important position in reducing costly breakdowns and avoiding catastrophic accidents in modern industry.With the development of artificial intelligence(AI),especially deep learning(DL)approaches,the application of AI-enabled methods to monitor,diagnose and predict potential equipment malfunctions has gone through tremendous progress with verified success in both academia and industry.However,there is still a gap to cover monitoring,diagnosis,and prognosis based on AI-enabled methods,simultaneously,and the importance of an open source community,including open source datasets and codes,has not been fully emphasized.To fill this gap,this paper provides a systematic overview of the current development,common technologies,open source datasets,codes,and challenges of AI-enabled PHM methods from three aspects of monitoring,diagnosis,and prognosis. | Zhibin Zhao Jingyao Wu Tianfu Li Chuang Sun Ruqiang Yan Xuefeng Chen | 2021 | Chinese Journal of Mechanical Engineering2021，34，3： | 8 |
| 13 | Three new compounds from Sarcandra glabra显示文摘一新 sesquiterpene 内酯, 1,8,9-trihydroxyeudesman-3 (4 ) , 7 (11 )-dien-8,12-olide (1 ) 和二新代替 phenylpropanoid 的 catechin glycosides, glabraoside C (2 ) 和 glabraoside D (3 ) 从 Sarcandra glabra 的整个植物被孤立。他们的结构被分析建立光谱、化学证据。 | Chao Wang Yuan Li Chuang Jun Li Shi Shan Yu Dong Ming Zhang | 2012 | Chinese Chemical Letters2012，23，7： | 7 |
| 14 | Resolving co- and early post-seismic slip variations of the 2021 MW 7.4 Madoi earthquake in east Bayan Har block with a block-wide distributed deformation mode from satellite synthetic aperture radar data显示文摘On 21 May 2021(UTC),an MW 7.4 earthquake jolted the east Bayan Har block in the Tibetan Plateau.The earthquake received widespread attention as it is the largest event in the Tibetan Plateau and its surroundings since the 2008 Wenchuan earthquake,and especially in proximity to the seismic gaps on the east Kunlun fault.Here we use satellite interferometric synthetic aperture radar data and subpixel offset observations along the range directions to characterize the coseismic deformation of the earthquake.Range offset displacements depict clear surface ruptures with a total length of~170 km involving two possible activated fault segments in the earthquake.Coseismic modeling results indicate that the earthquake was dominated by left-lateral strike-slip motions of up to 7 m within the top 12 km of the crust.The well-resolved slip variations are characterized by five major slip patches along strike and 64%of shallow slip deficit,suggesting a young seismogenic structure.Spatial-temporal changes of the postseismic deformation are mapped from early 6-day and 24-day InSAR observations,and are well explained by time-dependent afterslip models.Analysis of Global Navigation Satellite System(GNSS)velocity profiles and strain rates suggests that the eastward extrusion of plateau is diffusely distributed across the east Bayan Har block,but exhibits significant lateral heterogeneities,as evidenced by magnetotelluric observations.The block-wide distributed deformation of the east Bayan Har block along with the significant co-and post-seismic stress loadings from the Madoi earthquake imply high seismic risks along regional faults,especially the Tuosuo Lake and Maqên-Maqu segments of the Kunlun fault that are known as seismic gaps. | Shuai Wang Chuang Song ShanShan Li Xing Li | 2022 | Earth and Planetary Physics2022，6，1： | 7 |
| 15 | Synthesis of novel CeO_2–BiVO_4/FAC composites with enhanced visible-light photocatalytic properties显示文摘To utilize visible light more effectively in photocatalytic reactions,a fly ash cenosphere(FAC)-supported CeO2–BiVO4(CeO2–BiVO4/FAC)composite photocatalyst was prepared by modified metalorganic decomposition and impregnation methods.The physical and photophysical properties of the composite have been characterized by X-ray diffraction(XRD),scanning electron microscope(SEM)and energy dispersive X-ray spectroscopy(EDX),X-ray photoelectron spectroscopy(XPS),and UV–Visible diffuse reflectance spectra.The XRD patterns exhibited characteristic diffraction peaks of both BiVO4and CeO2crystalline phases.The XPS results showed that Ce was present as both Ce4+and Ce3+oxidation states in CeO2and dispersed on the surface of BiVO4to constitute a p–n heterojunction composite.The absorption threshold of the CeO2–BiVO4/FAC composite shifted to a longer wavelength in the UV–Vis absorption spectrum compared to the pure CeO2and pure BiVO4.The composites exhibited enhanced photocatalytic activity for Methylene Blue(MB)degradation under visible light irradiation.It was found that the 7.5 wt.%CeO2–BiVO4/FAC composite showed the highest photocatalytic activity for MB dye wastewater treatment. | Jin Zhang Bing Wang Chuang Li Hao Cui Jianping Zhai Qin Li | 2014 | Journal of Environmental Sciences2014，26，9： | 7 |
| 16 | Separation and purification of deoxynivalenol(DON) mycotoxin from wheat culture using a simple two-step silica gel column chromatography显示文摘Deoxynivalenol(DON) is a type B trichothecenes mycotoxin produced by several Fusarium species, often found in foodstuffs for humans and animals. DON is in great demand for the toxicological researches both in vivo and in vitro. In this work, wheat culture was inoculated with a Fusarium graminearum PH-1 strain for DON production. The solvent system for crude extraction was acetonitrile-water(84:16, v/v). A simple two-step silica gel column chromatography was employed to separate the DON mycotoxin from wheat culture, combined with preparative high performance liquid chromatography(preparative HPLC) to purify the compound. The solvent system for the second silica gel column chromatography was methylene chloride-methanol(17:1, v/v), which provided a good elution effect selected on thin layer chromatography(TLC). The target compound was identified by HPLC, and the chemical structure was confirmed by mass spectrometry(MS) and ~1H and ^(13)C nuclear magnetic resonance(NMR) spectroscopy. A total of 433 mg of purified DON was obtained from 1 kg of wheat culture, with a purity of 99.01%. The study had provided an easy-operating and cost-effective method to isolate an expensive compound in a simple way. | ZHAO Xiu-mei LI Rong-jia ZHOU Chuang ZHANG Jie HE Cheng-hua ZHENG Ya-ting WU Wen-da ZHANG Hai-bin | 2016 | Journal of Integrative Agriculture2016，15，3： | 7 |
| 17 | External fixation is more suitable for intra-articular fractures of the distal radius in elderly patients显示文摘The purpose of this study was to compare the functional outcomes,psychological impact,and complication rates associated with external fixation and volar or dorsal plating in relation to the functional parameters following treatment of intra-articular fractures of the distal radius(IFDR) in patients older than 65 years.We hypothesized that using volar or dorsal plating would improve functional outcomes,but that it would be associated with more complications and equivalent functional outcomes when compared with the external fixation group.A total of 123 consecutive patients suffering from IFDR were recruited into the study.The patients were measured for clinical,radiological,and psychosocial functioning outcomes and were followed up after 1 week and 3,6 and 12 months.After 3 months,the plating group had better pronation(P=0.001),supination,(P=0.047) and extension(P=0.043) scores.These differences were somewhat attenuated by6 months and disappeared at 1 year.The plating group had a greater occurrence of wound infection(P=0.043),tendonitis,(P=0.024) and additional surgery compared with the external fixation group.The only TNO-AZL Adult Quality of Life scores in the plating group that were lower than those in the external fixation group were in the 'gross motor' category(walking upstairs,bending over,walking 500 yards; P=0.023).Internal fixation was more advantageous than external fixation in the early rehabilitation period; after 1 year the outcomes were similar.The plating group showed significantly higher levels of wound infection and tendonitis and had a greater need for additional surgeries. | Chuang Ma Qiang Deng Hongwei Pu Xinchun Cheng Yuhua Kan Jing Yang Aihemaitijiang Yusufu Li Cao | 2016 | Bone Research2016，4，1： | 7 |
| 18 | Straw layer burial to alleviate salt stress in silty loam soils: Impacts of straw forms显示文摘Salt stress can be alleviated by straw layer burial in the soil, but little is known of the appropriate form of the straw layer for optimal regulation of soil water and salinity because of the uncontrollability of field tests. Here, the following four straw forms with compaction thickness of 5 cm buried 40–45 deep were studied: no straw layer(CK), segmented straw(SL, 5 cm in length), straw pellet(SK), and straw powder(SF). The three straw forms(SL, SK and SF) significantly delayed the infiltration of irrigation water down the column profile by 71.20–134.3 h relative to CK and the migration velocity of the wetting front under SF was the slowest. It took longer for the wetting front to transcend SK than SL but shorter for it to reach the bottom of soil column after water crossed the straw layer. Compared with CK, the average volumetric water content in the 0–40 cm soil layer increased by 6.45% under SL, 1.77% under SK and 5.39% under SF. The desalination rates at the 0–40 and 0–100 cm soil layers increased by 5.85 and 3.76% under SL, 6.64 and 1.47% under SK and 5.97 and 4.82% under SF. However, there was no significant difference among straw forms in the 0–40 cm soil layer. Furthermore, the salt leaching efficiency(SLE, g mm^–1 h^–1) above the 40 cm layer under SL was 0.0097, being significantly higher than that under SF(0.0071) by 37.23%. Salt storage under SL, SK and SF in the 40–45 cm layer accounted for 4.50, 16.92 and 7.43% of total storage in the 1-m column profile. Cumulative evaporation under SL and SF decreased significantly by 41.20 and 49.00%, with both treatments having the most significant inhibition of salt accumulation(resalinization rate being 36.06 and 47.15% lower than CK) in the 0–40 cm soil layer. In conclusion, the different forms of straw layers have desalting effects under high irrigation level(446 mm). In particular, SL and SF performed better than SK in promoting deep salt leaching and inhibiting salt accumulation on the soil surface. However, SL was simpler to implement and its SLE was higher. Therefore, the segmented 5 cm straw can be recommended as an optimum physical form for establishing a straw layer for managing saline soils for crop production. | ZHANG Hong-yuan LU Chuang PANG Huan-cheng LIU Na ZHANG Xiao-li LI Yu-yi | 2020 | Journal of Integrative Agriculture2020，19，1： | 7 |
| 19 | Interspecific Differences in Diet between Introduced Red-eared Sliders and Native Turtles in China显示文摘Although the alien Red-eared slider(Trachemys scripta elegans) is generally argued as an invasive species that competes with native turtles,the fi eld evidence on its diet is controversial.Field studies conducted at the Gutian Nature Reserve of Guangdong and along the Wanquan River in Hainan,China show that T.s.elegans is an opportunitic omnivore,consuming a wide variety of food items.Consumption varies throughout its range;more plant material is consumed in Guangdong,compared to a more carnivorous diet in Hainan;and juveniles are also found to have a more carnivorous diet than adults.This implies a high adaptability to new environment.Sympatric native Mauremys sinensis shows a more herbivorous diet and a narrower niche breadth(0.0260) in Hainan,plus a low niche overlap(0.3048) with T.s.elegans,providing a potential empty niche for the invasive T.s.elegans.Red-eared slider is also known to consume large quantities of native prey species to disrupt the ecological balance.It is imperative to understand the invasive nature of this species and the mechanisms by which it affects native ecology. | Jian WANG Haitao SHI Shijia HU Kai MA Chuang LI | 2013 | Asian Herpetological Research2013，4，3： | 7 |
| 20 | Theoretical and numerical research of wire array Z-pinch and dynamic hohlraum at IAPCM显示文摘Dense Z-pinch plasmas are powerful and energy-efficient laboratory sources of X-rays,and show the possibility to drive inertial confinement fusion(ICF).Recent advances in wire-array Z-pinch and Z-pinch dynamic hohlraum(ZPDH)researches at the Institute of Applied Physics and Computational Mathematics are presented in this paper.Models are setup to study different physical processes.A full circuit model(FCM)was used to study the coupling between Z-pinch implosion and generator discharge.A mass injection model with azimuthal modulation was setup to simulate the wire-array plasma initiation,and the two-dimensional MHD code MARED was developed to investigate the Z-pinch implosion,MRT instability,stagnation and radiation.Implosions of nested and quasi-spherical wire arrays were also investigated theoretically and numerically.Key processes of ZPDH,such as the arrayefoam interaction,formation of the hohlraum radiation,as well as the following capsule ablation and implosion,were analyzed with different radiation magneto-hydrodynamics(RMHD)codes.An integrated 2D RMHD simulation of dynamic hohlraum driven capsule implosion provides us the physical insights of wire-array plasma acceleration,shock generation and propagation,hohlraum formation,radiation ablation,and fuel compression. | Ning Ding Yang Zhang Delong Xiao Jiming Wu Zihuan Dai Li Yin Zhiming Gao Shunkai Sun Chuang Xue Cheng Ning Xiaojian Shu Jianguo Wang | 2016 | Matter and Radiation at Extremes2016，1，3： | 7 |
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