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    题名 作者 年代 出处 被引量
1Soil Aggregate Stability and Iron and Aluminium Oxide Contents Under Different Fertiliser Treatments in a Long-Term Solar Greenhouse Experiment显示文摘Soil in greenhouses is likely to suffer a gradual decline in aggregate stability. Determination of the effects of different fertiliser practices on soil aggregate stability is important for taking advantage of solar greenhouses. Soil aggregate stability and iron(Fe) and aluminium(Al) oxide contents were investigated in a 26-year long-term fertilisation experiment in greenhouse in Shenyang, China,under eight fertiliser treatments: manure(M), fertiliser N(FN), fertiliser N with manure(MN), fertiliser P(FP), fertiliser P with manure(MP), fertiliser NP(FNP), fertiliser NP with manure(MNP), and control without any fertiliser(CK). A wet sieving method was used to determine aggregate size distribution and water-stable aggregates(WSA), mean weight diameter and geometric mean diameter as the indices of soil aggregate stability. Different fertiliser treatments had a statistically significant influence on aggregate stability and Fe and Al oxide contents. Long-term application of inorganic fertilisers had no obvious effects on the mass proportion of aggregates. By contrast, manure application significantly increased the mass proportion of macroaggregates at the expense of microaggregates. All treatments, with the exception of FNP, significantly increased the stability of macroaggregates but decreased that of microaggregates when compared with CK. Aggregation under MP and MN was better than that under M and MNP; however,no significant differences were found among inorganic fertiliser treatments(i.e., FN, FP, and FNP). A positive relation was found between pyrophosphate-extractable Fe and WSA(r = 0.269), but no significant relations were observed between other Fe and Al oxides and aggregate stability.YIN Yan WANG Li LIANG Chenghua XI Fengming PEI Zhongjian DU Liyu 2016Pedosphere2016,26,5:11
2Dynamical Mechanisms of Effects of Landslides on Long Distance Oil and Gas Pipelines显示文摘According to the investigations on the oil and gas pipelines such as the Lan-Cheng-Chong pipeline and the Southwest pipeline, there are two ways of laying pipeline: pipelines paralleling (approximately) to the main slide direction and pipelines perpendicular (approximately) to the main slide direction. If earth-retaining walls have been built for pipelines paralleling to the main slide direction, they will prevent the lands from sliding; On the contrary, without earth-retaining walls, the sharp broken rocks in the backfilling soil will scratch the safeguard of the pipeline when the landslides take place. Pipelines perpendicular to the main slide direction can be classified into four types according to the relative positions between pipelines and landslides: Pipelines over the slide planes, pipelines inside the fracture strips of slide planes, pipelines below the slide planes and pipelines behind the backsides of landslides. The different dynamical mechanisms of the process in which landslide acts against pipelines are analyzed based on whether the pipelines are equipped with fixed frusta, because the sliding resistance depends on whether and how many fixed frusta are equipped and the distance between frusta.MA Qingwen WANG Chenghua KONG Jiming 2006Wuhan University Journal of Natural Sciences2006,11,4:7
3A Study of Tensile Strength Tests of Arborous Species Root System in Forest Engineering Technique of Shallow Landslide显示文摘One experiment was conducted, through tensile tests of Albazzia and Eucalypt roots culled from the fields. The other experiment was conducted, by testing anti-drawing strength of these root systems in the Albazzia and Eucalypt lands. These two experiments had an aim to give insights into the maximum tensile strength and anti-drawing strength of the root systems. Results indicated that the maximum tensile strength of root system is in an exponential relation with the diameter of root system while the maximum tensile strength is positively correlative with the diameter of root system. Anti-drawing force of root system together with root diameter, length, and soil bulk density are folded into a regression equation in an attempt to figure out the static friction coefficient between root system and its ambient soil.YANG Yonghong LIU Shuzhen WANG Chenghua TANG Chuan 2006Wuhan University Journal of Natural Sciences2006,11,4:6
4Three-Dimensional Modelling of a Multi-Layer Sandstone Reservoir: the Sebei Gas Field, China显示文摘Multi-layer sandstone reservoirs occur globally and are currently in international production.The 3D characteristics of these reservoirs are too complicated to be accurately delineated by general structural-facies-reservoir modelling.In view of the special geological features,such as the vertical architecture of sandstone and mudstone interbeds,the lateral stable sedimentation and the strong heterogeneity of reservoir poroperm and fluid distribution,we developed a new three-stage and six-phase procedure for 3D characterization of multi-layer sandstone reservoirs.The procedure comprises two-phase structural modelling,two-phase facies modelling and modeUing of two types of reservoir properties.Using this procedure,we established models of the formation structure,sand body structure and microfacies,reservoir facies and properties including porosity,permeability and gas saturation and provided a 3D fine-scale,systematic characterization of the Sebei multi-layer sandstone gas field,China.This new procedure,validated by the Sebei gas field,can be applied to characterize similar multi-layer sandstone reservoirs.OU Chenghua WANG Xiaolu LI Chaochun HE Yan 2016Acta Geologica Sinica(English Edition)2016,90,1:5
5Analysis of Rockfall and Its Impact on the Cut-and-Cover Tunnel in Dynamics显示文摘This paper presents the effect of thickness of Buffer layer on the safety of cut-and-cover tunnel under the given magnitude and height of rockfall, and the limit load of the structure. To establish calculating models of rockfall in different conditions, the dynamics of the fall down to the surface of the slope is taken into account and the exterior characteristics of the rockfall is analyzed. We have derived the formula for calculating velocity of rocks before and after collision, calculated the impact load upon the structures below and the limit load, and compared the impact force and limit load to judge the safety of the structure. Finally, the validity of models is approved by the safety evaluation of cut-and-cover tunnel in the mouth of Heshang Mountain in Nandan County.SONG Shuzhi KONG Jiming WANG Chenghua CHENG Zefu YANG Zongji 2006Wuhan University Journal of Natural Sciences2006,11,4:5
6Graphene oxide:An emerging electromaterial for energy storage and conversion显示文摘This paper gives a comprehensive review of the recent progress on electrochemical energy storage devices using graphene oxide(GO).GO,a single sheet of graphite oxide,is a functionalised graphene,carrying many oxygen-containing groups.This endows GO with various unique features for versatile applications in batteries,capacitors and fuel cells.Specific applications are considered principally including use in electrodes as the active materials to enhance the performance or as substrates to diversify the structures,in solid-state electrolytes and membranes to improve the ionic conductivity and mechanical properties,and in interlayers to protect the electrodes,membranes or current collectors.Furthermore,the challenges and future prospects are discussed in the paper for encouraging further research and development of GO applications.Yuheng Tian Zhichun Yu Liuyue Cao Xiao Li Zhang Chenghua Sun Da-Wei Wang 2021Journal of Energy Chemistry2021,30,4:5
7Direct observation of Pt nanocrystal coalescence induced by electron-excitation-enhanced van der Waals interactions显示文摘Ying Jiang Yong Wang Yu Yang Zhang Zhengfei Zhang Wentao Yuan Chenghua Sun Xiao Wei Casey N. Brodsky Chia-Kuang Tsung Jixue Li Xiaofeng Zhang Scott X. Mao Shengbai Zhang Ze Zhang 2014Nano Research2014,7,3:4
8Ni-induced stepwise capacity increase in Ni-poor Li-rich cathode materials for high performance lithium ion batteries显示文摘Li 富有的阴极材料为高精力的锂离子电池(解放) 被认为候选人同样有希望。在这研究,我们报导Li富有的材料的一个新系列(李[李<潜水艇class=“ a-plus-plus ”> 1/32x/3 Mn <潜水艇class=“ a-plus-plus ”> 2/3x/3 Ni <潜水艇class=“ a-plus-plus ”> x ]O 2 ( 0.09 x 0.2 ))在解放作为阴极材料与 Ni 的小数量做了,它由于李的连续激活展出了能力增加的不平常的现象直到十个周期<潜水艇class=“ a-plus-plus ”> 2 MnO <潜水艇class= a-plus-plus > 3 阶段。试验性、计算的结果显示不同于通常学习的做 Ni 的 Li 富有的阴极材料,做的 Ni 的更小的数量能提拔逐步的李 < 潜水艇 class= “ a-plus-plus ” > 2 MnO < 潜水艇 class= “ a-plus-plus ” > 获得的 3 激活增加了特定的能力和更好骑车的能力。相反,过多的 Ni 愿望在激活上李 < 潜水艇 class= “ a-plus-plus ” > 2 MnO < 潜水艇 class= “ a-plus-plus ” > 在在第一的大能力损失的 3 和结果骑车。李<潜水艇class=“ a-plus-plus ”> 1.25 Mn <潜水艇class=“ a-plus-plus ”> 0.625 Ni <潜水艇class=“ a-plus-plus ”> 0.125 O <潜水艇class=“ a-plus-plus ”>有 Ni 的一个优化内容的 2 材料高交付了上级能力 280 mAh ?瀠汯??瑳特湥?潣洭污楥??€ ????????????????????楢慬敹?????搠獩潣摩污?慮潮慰瑲捩敬??Delai Ye Chenghua Sun Yu Chen Kiyoshi Ozawa Denisa Hulicova-JurcakovaI Jin Zou Lianzhou Wang 2015Nano Research2015,8,3:4
9Intrastriatal glial cell line-derived neurotrophic factors for protecting dopaminergic neurons in the substantia nigra of mice with Parkinson disease显示文摘BACKGROUND:Substantia nigra is deep in position and limited in range,the glial cell line-derived neurotrophic factor(GDNF)injection directly into substantia nigra has relatively greater damages with higher difficulty.GDNF injection into striatum,the target area of dopaminergic neuron,may protect the dopaminergic neurons in the compact part of substantia nigra through retrograde transport.OBJECTIVE:To investigate the protective effect of intrastriatal GDNF on dopaminergic neurons in the substantia nigra of mice with Parkinson disease(PD),and analyze the action pathway.DESIGN:A controlled observation.SETTING:Neurobiological Laboratory of Xuzhou Medical College.MATERIALS:Twenty-four male Kunming mice of 7-8 weeks old were used.GDNF,1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine(MPTP)were purchased from Sigma Company(USA);LEICAQWin image processing and analytical system.METHODS:The experiments were carried out in the Neurobiological Laboratory of Xuzhou Medical College from September 2005 to October 2006.The PD models were established in adult KunMing mice by intraperitoneal injection of MPTP.The model mice were were randomly divided into four groups with 6 mice in each group:GDNF 4-day group,phosphate buffer solution(PSB)4-day group,GDNF 6-day group and PSB 6-day group.Mice in the GDNF 4 and 6-day groups were administrated with 1 μL GDNF solution(20 μg/L,dispensed with 0.01 mol/L PBS)injected into right striatum at 4 and 6 days after model establishment.Mice in the PSB 4 and 6-day groups were administrated with 0.01 mol/L PBS of the same volume to the same injection at corresponding time points.② On the 12th day after model establishment,the midbrain tissue section of each mice was divided into 3 areas from rostral to caudal sides.The positive neurons of tyroxine hydroxylase(TH)and calcium binding protein(CB)with obvious nucleolus and clear outline were randomly selected for the measurement,and the number of positive neurons in unit area was counted.MAIN OUTCOME MEASURES:Number of positive neurons of TH and CB in midbrain substantia nigra of mice in each group.RESULTS:All the 24 mice were involved in the analysis of results.The numbers of TH+ and CB+ neurons in the GDNF 4-day group(54.33±6.92,46.33±5.54)were obviously more than those in the PBS 4-day group(27.67±5.01,21.50±5.96,P < 0.01).The numbers of TH+ and CB+ neurons in the GDNF 6-day group(75.67±5.39,69.67±8.69)were obviously more than those in the PBS 6-day group(27.17±4.50,21.33±5.72,P < 0.01)and those in the GDNF 4-day group(P < 0.01).CONCLUSION:Intrastriatal GDNF can protect dopaminergic neurons in substantia nigra of PD mice,and it may be related to the increase of CB expression.Chenghua Xiao Yanqiang Wang Hongmei Liu Hongjun Wang Junping Cao Dianshuai Gao 2007Neural Regeneration Research2007,2,4:4
10Facile synthesis of porous nitrogen-doped holey graphene as an efficient metal-free catalyst for the oxygen reduction reaction显示文摘做氮的 graphene 是为氧减小反应(ORR ) 的高贵基于金属的 electrocatalysts 的代替的一个有希望的候选人。进做氮的 graphene 的毛孔和洞的增加由介绍丰富的暴露的边提高 ORR 活动,加速集体转移,并且阻碍 graphene 表的聚集。此处,我们在场为经由脲和镁醋酸盐 tetrahydrate 的热分解产生多孔的有穴的做氮的 graphene (PHNG ) 的直接却有效的策略。由于联合效果在里面 situ 产生了气体和 MgO nanoparticles,综合 PHNG 在弄皱的 graphene 之中展示了不仅众多的 out-of-plane 毛孔在装配 graphene 的表,而且贯穿的 nanoscale (5-15 nm ) 洞。而且,做 PHNG 的配置的氮被 thermal 以后处理在不同温度优化。pyridinic 和第四级的氮的全面内容断然与 ORR 活动相关,这被发现;特别地, pyridinic 氮为 ORR 产生最理想的特征。这个工作为基于 PHNG 的材料的合成揭示新线路并且阐明到 ORR 的各种各样的氮种类的贡献。Li Qin Ruimin Ding Huixiang Wang Jianghong Wu Conghui Wang Chenghua Zhang Yao Xu Liancheng Wang Baoliang Lv 2017Nano Research2017,10,1:3
11Surficial Stability Analysis of Unsaturated Loess Slopes Subjected to Rainfall Infiltration Effects显示文摘According to theory of unsaturated soil strength and Green-Ampt model, an analysis method based on limit equilibrium theory is introduced to consider rainfall infiltration effects in loess slope stability analysis. The relationships between wetting band depth and surficial stability of slopes are analyzed. It is found that the infiltration adds to the weight of the soil and at the same time reduces the shear strength provided by matric suction of the soil. The wetting band depth plays a key role in the stability of slopes. The minimum rainfall intensity and the minimum rainfall duration needed to infiltrate to the wetting front depth are calculated based on the Green-Ampt model. The method in this paper will contribute to the predication of slope stability considering rainfall characteristics.LI Xinpo WANG Chenghua XU Jun 2006Wuhan University Journal of Natural Sciences2006,11,4:3
12In situ TEM observation of dissolution and regrowth dynamics of MoO2 nanowires under oxygen显示文摘nanomaterials 的溶解行为的直接观察能提供基本卓见给理解他们的各向异性的性质和稳定性。在答案和真空的溶解机制很好被记录了。然而,包含气体的溶解和生长很少被探索了,机制留下逃犯。我们此处报导,一在里面溶解的 situ TEM 学习和在用环境传播电子显微镜学(ETEM ) 的氧下面的哞 2 nanowires 的生长动力学。第一次, nanowire 尖端上的摆动的溶解被揭示,并且,有趣地, sidewall 方面上的同时的 layer-by-layer 生长被观察,导致更短、更宽的 nanowire。与第一原则的计算结合了,我们发现那电子横梁照耀在尖端方面引起了氧损失,它导致了改变优先的生长方面并且驾驶了重塑的形态学。Wentao Yuan Jian Yu Hengbo Li Ze Zhang Chenghua Sun Yong Wang 2017Nano Research2017,10,2:3
13Double transition metal atoms anchored on Graphdiyne as promising catalyst for electrochemical nitrogen reduction reaction显示文摘Ammonia synthesis by electrochemical nitrogen reduction technique is an attractive alternative to traditional Haber-Bosch process.Currently,development of an efficient and effective electrocatalyst is one of the remaining key challenges.In this work,density functional theory(DFT)computations were systematically employed on double transition metal atoms(Fe,Co,Ni,Cu and Mo)anchored Graphdiyne(GDY)for nitrogen reduction reaction(NRR).The Co-Ni heteronuclear complex and Mo-Mo homonuclear complex showed the highest NRR activity while demonstrating synergistic effect of double atomic catalytic sites towards the promising NRR activity.Lakshitha Jasin Arachchige Yongjun Xu Zhongxu Dai Xiao Li Zhang Feng Wang Chenghua Sun 2021Journal of Materials Science & Technology2021,,18:3
14Insights into the efficient charge separation over Nb_(2)O_(5)/2D-C_(3)N_(4) heterostructure for exceptional visible-light driven H_(2) evolution显示文摘Two-dimensional carbon nitride(2 D-C_(3) N_(4))nanosheets are promising materials in photocatalytic water splitting,but still suffer from easy agglomeration and fast photogene rated electron-hole pairs recombination.To tackle this issue,herein,a hierarchical Nb_(2) O_(5)/2 D-C_(3) N_(4) heterostructure is precisely constructed and the built-in electric field between Nb_(2)O_(5) and 2 D-C_(3) N_(4) can provide the driving force to separate/transfer the charge carriers efficiently.Moreover,the strongly Lewis acidic Nb_(2)O_(5) can adsorb TEOA molecules on its surface at locally high concentrations to facilitate the oxidation reaction kinetics under irradiation,resulting in efficient photogene rated electrons-holes separation and exceptional photocatalytic hydrogen evolution.As expected,the champion Nb_(2)O_(5)/2 D-C_(3)N_(4) heterostructure achieves an exceptional H2 evolution rate of 31.6 mmol g^(-1) h^(-1),which is 213.6 times and 4.3 times higher than that of pristine Nb_(2)O_(5) and2 D-C_(3)N_(4),respectively.Moreover,the champion heterostructure possesses a high apparent quantum efficiency(AQE)of 45.08%atλ=405 nm and superior cycling stability.Furthermore,a possible photocatalytic mechanism of the energy band alignment at the hetero-interface is proposed based on the systematical characterizations accompanied by density functional theory(DFT)calculations.This work paves the way for the precise construction of a high-quality heterostructured photocatalyst with efficient charge separation to boost hydrogen production.Jia Yan Ting Wang Siyao Qiu Zhilong Song Wangqin Zhu Xianhu Liu Jiabiao Lian Chenghua Sun Huaming Li 2022Journal of Energy Chemistry2022,31,2:3
15Coordinated transcription of ANRIL and P16 genes is silenced by P16 DNA methylation显示文摘Objective: To investigate the relationship between the transcription of ANRIL, P15, P14 and P16 at the same locus and the regulation mechanism of ANRIL.Methods: Publicly available database of Cancer Cell Line Encyclopedia(CCLE) was used in bioinformatic analyses. Methylation of Cp G islands was detected by denaturing high performance liquid chromatography(DHPLC). Gene transcript levels were determined using quantitative real-time polymerase chain reaction(q RTPCR) assays. An engineered P16-specific transcription factor and DNA methyltransferase were used to induce P16-specific DNA demethylation and methylation.Results: The expression level of ANRIL was positively and significantly correlated with that of P16 but not with that of P15 in the CCLE database. This was confirmed in human cell lines and patient colon tissue samples. In addition, ANRIL was significantly upregulated in colon cancer tissues. Transcription of ANRIL and P16 was observed only in cell lines in which the P16 alleles were unmethylated and not in cell lines with fully methylated P16 alleles.Notably, P16-specific methylation significantly decreased transcription of P16 and ANRIL in BGC823 and GES1 cells. In contrast, P16-specific demethylation re-activated transcription of ANRIL and P16 in H1299 cells(P<0.001).Alteration of ANRIL expression was not induced by P16 expression changes.Conclusions: ANRIL and P16 are coordinately transcribed in human cells and regulated by the methylation status of the P16 Cp G islands around the transcription start site.Ying Gan Wanru Ma Xiuhong Wang Juanli Qiao Baozhen Zhang Chenghua Cui Zhaojun Liu Dajun Deng 2018Chinese Journal of Cancer Research2018,30,1:2
16Role of calbindin-D28K in estrogen treatment for Parkinson’s disease显示文摘Studies have shown that estrogen has neuroprotective effects on the nigrostriatal system.The present study established a Parkinson's disease model in C57BL/6 mice by intraperitoneal injection of 1-methyl-4-phenyl-1,2,3,6-tetrapyridine.The mice were subjected to 17β estradiol injection into the lateral ventricle.Immunofluorescence double staining showed that estrogen increased tyrosine hydroxylase and calbindin-D28K expression and co-expression in dopaminergic neurons of midbrain substantia nigra pars compacta of model mice.Behavior experiments showed that estrogen improved swimming and hanging behaviors in this mouse model of Parkinson's disease.Chunhua Wang Chao Jiang Honghua Yuan Chenghua Xiao Dianshuai Gao 2013Neural Regeneration Research2013,8,8:2
17A DFT study of Ti_(3)C_(2)O_(2)MXenes quantum dots supported on single layer graphene:Electronic structure an hydrogen evolution performance显示文摘Heterojunction structure has been extensively employed for the design of novel catalysts.In the present study,density functional theory was utilized to investigate the electronic structure and hydrogen evolution performance of Ti_(3)C_(2)O_(2)MXene quantum dots/graphene(QDs/G)heterostructure.Results show that a slight distortion can be observed in graphene after hybriding with QDs,due to which the electronic structure of QDs have been changed.Associated with such QDs-graphene interaction,the catalytic activity of Ti_(3)C_(2)O_(2)QDs has been optimized,leading to excellent HER catalytic performance.Qingquan Kong Xuguang An Lin Huang Xiaolian Wang Wei Feng Siyao Qiu Qingyuan Wang Chenghua Sun 2021Frontiers of physics2021,16,5:2
18Use of caesium-137 measurements to investigate erosion and sediment sources within a small drainage basin in the Loess Plateau of China显示文摘Zhang Xinbao Li Shaolong Wang Chenghua 1989Hydrological Processes1989,3,:1
19Criterions and Measures of Route Selection of Shallowly Embedded Long-Distance Oil and Gas Pipeline in Mountain Areas显示文摘According to the engineering investigation of long-distance oil and gas pipelines, the criterions and measures of route selection are drawn as follows: the flat landform is the first choice in route alignment. The foot of mountain is the first choice when the route passes by the valley. The route should pass by but the shady and deposited slope and not in sunny and erosive slope as possible as it can. The pipeline should be vertical to contour climbing and descending the mountain except steep slope. Tunnel can be used in crossing foothill. Perpendicularly traversing the river is better than beveling; the worst choice is to put the pipeline along the river. Bypass is the best choice in karsts area . The order of route selection should be pre-choosing, investigation, optimization and adjustment.WANG Chenghua MA Qingwen KONG Jiming CHEN Zefu LI Xiuzhen 2006Wuhan University Journal of Natural Sciences2006,11,4:1
20HTR2A agonists play a therapeutic role by restricting ILC2 activation in papain-induced lung inflammation显示文摘Group 2 innate lymphoid cells(ILC2s)are a category of heterogeneous cells that produce the cytokines IL-5 and IL-13,which mediate the type 2 immune response.However,specific drug targets on lung ILC2s have rarely been reported.Previous studies have shown that type 2 cytokines,such as IL-5 and IL-13,are related to depression.Here,we demonstrated the negative correlation between the depression-associated monoamine neurotransmitter serotonin and secretion of the cytokines IL-5 and IL-13 by ILC2s in individuals with depression.Interestingly,serotonin ameliorates papain-induced lung inflammation by suppressing ILC2 activation.Our data showed that the serotonin receptor HTR2A was highly expressed on ILC2s from mouse lungs and human PBMCs.Furthermore,an HTR2A selective agonist(DOI)impaired ILC2 activation and alleviated the type 2 immune response in vivo and in vitro.Mice with ILC2-specific depletion of HTR2A(Il5^(cre/+)·Htr2a^(flox/flox)mice)abolished the DOI-mediated inhibition of ILC2s in a papain-induced mouse model of inflammation.In conclusion,serotonin and DOI could restrict the type 2 lung immune response,indicating a potential treatment strategy for type 2 lung inflammation by targeting HTR2A on ST2+ILC2s.Zhishuo Wang Chenghua Yan Qizhen Du Yuying Huang Xuezhen Li Dan Zeng Ruizhi Mao Rama Krishna Gurram Shipeng Cheng Wangpeng Gu Lin Zhu Weiguo Fan Liyan Ma Zhiyang Ling Ju Qiu Dangsheng Li Enmei Liu Yaguang Zhang Yiru Fang Jinfang Zhu Bing Sun 2023Cellular & Molecular Immunology2023,20,4:1
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