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| 1 | Effect of coal levels during direct reduction roasting of high phosphorus oolitic hematite ore in a tunnel kiln显示文摘The effect of coal levels on phosphorus removal from a high phosphorus oolitic hematite ore after direct reduction roasting have been investigated. Raw ore, coal, and a dephosphorization agent were mixed and the mixture was then roasted in a tunnel kiln. The roasted products were treated by two stages of grinding followed by magnetic separation. XRD and SEM-EDS examination of the products was used to analyze differences in the roasted products. The results show that coal is one of the most important factors affecting the direct reduction roasting process. When the inner coal levels increased from 0% to 15% the iron grade decreased linearly from 94.94% to 88.81% and the iron recovery increased from 55.94% to 92.94%. At the same time the phosphorus content increased from 0.045% to 0.231%. Increasing the inner coal levels also caused more hematite to be reduced to metallic iron but the oolitic structure of the roasted product was preserved in the presence of high coal loading. The phase of the phosphorus in raw ore was not changed after direct reduction roasting. The effect of coal on the phosphorus content in the H-concentrate arises from changes in the difficulty of mechanically liberating the metallic iron from the phosphorus bearing minerals. | Li Yongli Sun Tichang Zou Anhua Xu Chengyan | 2012 | International Journal of Mining Science and Technology2012，22，3： | 22 |
| 2 | Growth-associated protein 43 and neural cell adhesion molecule expression following bone marrow-derived mesenchymal stem cell transplantation in a rat model of ischemic brain injury显示文摘BACKGROUND:Transplantation of bone marrow-derived mesenchymal stem cells(BMSCs) improves motor functional recovery,but the mechanisms remain unclear.OBJECTIVE:To investigate expression of growth-associated protein 43(GAP-43) and neural cell adhesion molecule following BMSC transplantation to the lateral ventricle in rats with acute focal cerebral ischemic brain damage.DESIGN,TIME AND SETTING:A randomized,controlled,animal experiment using immunohistochemistry was performed at the laboratories of Department of Neurology,Renmin Hospital of Wuhan University and Doctoral Scientific Research Work Station of C-BONS PHARMA,Hubei Province,China,from January 2007 to December 2008.MATERIALS:Monoclonal mouse anti-rat 5-bromo-2-deoxyuridine and neural cell adhesion molecule antibodies were purchased from Sigma,USA;monoclonal mouse anti-rat GAP-43 antibody was purchased from Wuhan Boster,China.METHODS:Rat models of right middle cerebral artery occlusion were established using the thread method.At 1 day after middle cerebral artery occlusion,20 μL culture solution,containing 5 × 105 BMSCs,was transplanted to the left lateral ventricle using micro-injection.MAIN OUTCOME MEASURES:Scores of neurological impairment were measured to assess neural function.Expression of GAP-43 and neural cell adhesion molecule at the lesion areas was examined by immunohistochemistry.RESULTS:GAP-43 and neural cell adhesion molecule expression was low in brain tissues of the sham-operated group,but expression increased at the ischemic boundary(P < 0.05).Transplantation of BMSCs further enhanced expression of GAP-43 and neural cell adhesion molecule(P < 0.05) and remarkably improved neurological impairment of ischemic rats(P < 0.05).CONCLUSION:BMSC transplantation promoted neurological recovery in rats by upregulating expression of GAP-43 and neural cell adhesion molecule. | Yu Peng Qimei Zhang Hui You Weihua Zhuang Ying Zhang Chengyan Li | 2010 | Neural Regeneration Research2010，5，13： | 18 |
| 3 | TGFβ inhibition enhances the generation of hematopoietic progenitors from human ES cell-derived hemogenic endothelial cells using a stepwise strategy显示文摘 | Chengyan Wang Xuming Tang Xiaomeng Sun Zhenchuan Miao Yaxin Lv Yanlei Yang Huidan Zhang Pengbo Zhang Yang Liu LiyingDu Yang Gao Ming Yin Mingxiao Ding Hongkui Deng | 2012 | Cell Research2012，22，1： | 17 |
| 4 | Prostate cancer identification: quantitative analysis of T2-weighted MR images based on a back propagation artificial neural network model显示文摘Computer-aided diagnosis(CAD) systems have been proposed to assist radiologists in making diagnostic decisions by providing helpful information. As one of the most important sequences in prostate magnetic resonance imaging(MRI), image features from T2-weighted images(T2WI) were extracted and evaluated for the diagnostic performances by using CAD. We extracted 12 quantitative image features from prostate T2-weighted MR images. The importance of each feature in cancer identification was compared in the peripheral zone(PZ) and central gland(CG), respectively. The performance of the computer-aided diagnosis system supported by an artificial neural network was tested. With computer-aided analysis of T2-weighted images, many characteristic features with different diagnostic capabilities can be extracted. We discovered most of the features(10/12) had significant difference(P<0.01) between PCa and non-PCa in the PZ, while only five features(sum average, minimum value, standard deviation, 10 th percentile, and entropy) had significant difference in CG. CAD prediction by features from T2 w images can reach high accuracy and specificity while maintaining acceptable sensitivity. The outcome is convictive and helpful in medical diagnosis. | ZHAO Kai WANG ChengYan HU Juan YANG XueDong WANG He LI FeiYu ZHANG XiaoDong ZHANG Jue WANG XiaoYing | 2015 | Science China(Life Sciences)2015，58，7： | 16 |
| 5 | The impacts of conservation agriculture on crop yield in China depend on specific practices, crops and cropping regions显示文摘For smooth and wide application of conservation agriculture(CA), remaining uncertainties about its impacts on crop yield need to be reduced. Based on previous field experiments in China, a meta-analysis was performed to quantify the actual impacts of CA practices(NT: no/reduced-tillage only, CTSR: conventional tillage with straw retention, NTSR: NT with straw retention) on crop yields as compared to conventional tillage without straw retention(CT).Although CA practices increased crop yield by 4.6% on average, there were large variations in their impacts. For each CA practice, CTSR and NTSR significantly increased crop yield by 4.9%and 6.3%, respectively, compared to CT. However, no significant effect was found for NT. Among ecological areas, significant positive effects of CA practices were found in areas with an annual precipitation below 600 mm. Similar effects were found in areas with annual mean air temperature above 5 °C. For cropping regions, CA increased crop yield by 6.4% and 5.5%compared to CT in Northwest and South China, respectively, whereas no significant effects were found in the North China and Northeast China regions. Among crops, the positive effects of CA practices were significantly higher in maize(7.5%) and rice(4.1%) than in wheat(2.9%). NT likely decreased wheat yield. Our results indicate that there are great differences in the impacts of CA practices on crop yield, owing to regional variation in climate and crop types. CA will most likely increase maize yield but reduce wheat yield. It is strongly recommended to apply CA with crop straw retention in maize cropping areas and seasons with a warm and dry climate pattern. | Chengyan Zheng Yu Jiang Changqing Chen Yanni Sun Jinfei Feng Aixing Deng Zhenwei Song Weijian Zhang | 2014 | The Crop Journal2014，2，5： | 15 |
| 6 | Quantitative analysis of diffusion-weighted magnetic resonance images:differentiation between prostate cancer and normal tissue based on a computer-aided diagnosis system显示文摘Diffusion-weighted imaging(DWI) is considered to be one of the dominant modalities used in prostate cancer(PCa) detection and the assessment of lesion aggressiveness,especially for peripheral zone(PZ) PCa.Computer-aided diagnosis(CAD),which is capable of automatically extracting and evaluating image features,can integrate multiple parameters and improve the detection of PCa.In this study,13 quantitative image features were extracted from DWI by CAD,and diagnostic efficacy was analyzed in both the PZ and transition zone(TZ).The results demonstrated that there was a significant difference(P<0.05) between PCa and non-PCa for nine of the 13 features in the PZ and five of the 13 features in the TZ.Besides,the prediction outcome of CAD had a strong correlation with the DWI scores that were graded by experienced radiologists according to the Prostate Imaging-Reporting and Data System Version 2(PI-RADS v2). | Ge Gao Chengyan Wang Xiaodong Zhang Juan Hu Xuedong Yang He Wang Jue Zhang Xiaoying Wang | 2017 | Science China(Life Sciences)2017，60，1： | 13 |
| 7 | Organic amendments increase corn yield by enhancing soil resilience to climate change显示文摘A 22-year field experiment was conducted in Gongzhuling, Jilin province, China to investigate corn yield response to fertilization practice. Compared to an unfertilized control(CK), all fertilization treatments, including inorganic nitrogen fertilizer only(N), balanced inorganic fertilizers(NPK), NPK plus corn straw(SNPK), and NPK plus farmyard manure(MNPK), resulted in significant increases in corn yield. However, only organic matter amendments sustained increasing yield trends, with annual rates of 0.137 and 0.194 t ha-1for the SPNK and MNPK treatments, respectively(P < 0.05). During the 22 years, the daily mean, maximum and minimum temperatures increased by 0.50, 0.53, and 0.46 °C per decade, whereas precipitation displayed no significant change but showed large seasonal variation. According to a regression analysis, increased air temperature exerted positive effects on corn yields under the SNPK and the MNPK treatments. Under both treatments,soil organic carbon contents and soil nutrient availabilities increased significantly compared to their initial levels in 1990, whereas soil bulk density and total porosity changed slightly under the two treatments, which showed higher soil water storage than other treatments. In contrast, significant increases in soil bulk density and decreases in soil total porosity and soil nutrient availability were observed under the CK, N and NPK treatments. The contributions of soil fertility to corn yield were 28.4%, 37.9%, 38.4%, 39.0%,and 42.9% under CK, N, NPK, SNPK, and MNPK treatments, respectively, whereas climate changes accounted for 27.0%, 14.6%, 12.4%, 11.8%, and 10.8%. These results indicate that, in Northeast China, organic matter amendments can mitigate negative and exploit positive effects of climate change on crop production by enhancing soil quality. | Zhenwei Song Hongjun Gao Ping Zhu Chang Peng Aixing Deng Chengyan Zheng Md Abdul Mannaf Md Nurul Islam Weijian Zhang | 2015 | The Crop Journal2015，3，2： | 8 |
| 8 | Seismic Sedimentology Interpretation Method of Meandering Fluvial Reservoir:From Model to Real Data显示文摘Reservoir architecture of meandering river deposition is complex and traditional seismic facies interpretation method cannot characterize it when layer thickness is under seismic vertical resolution.In this study,a seismic sedimentology interpretation method and workflow for point bar characterization is built.Firstly,the influences of seismic frequency and sandstone thickness on seismic reflection are analyzed by outcrop detection with ground penetrating radar(GPR) and seismic forward modeling.It is found that(1) sandstone thickness can influence seismic reflection of point bar architecture.With the increasing of sandstone thickness from 1/4 wavelength(λ) to λ/2,seismic reflection geometries various from ambiguous reflection,'V' type reflection to 'X' type reflection;(2) seismic frequency can influence reservoirs' seismic reflection geometry.Seismic events follow inclined lateral aggradation surfaces,which is isochronic depositional boundaries,in high frequency seismic data while the events extend along lithologic surfaces,which are level,in low frequency data.Secondly,strata slice interpretation method for thin layer depositional characterization is discussed with seismic forward modeling.Lastly,a method and workflow based on the above study is built which includes seismic frequency analysis,90 o phasing,stratal slicing and integrated interpretation of slice and seismic profile.This method is used in real data study in Tiger shoal,the Gulf of Mexico.Two episodes of meandering fluvial deposition is recognized in the study layer.Sandstone of the lower unit,which is formed in low base level stage,distributes limited.Sandstone distribution dimension and channel sinuosity become larger in the upper layer,which is high base level deposition. | Tao Zhang Xianguo Zhang Chengyan Lin Jingfeng Yu Shouxiu Zhang | 2015 | Journal of Earth Science2015，26，4： | 8 |
| 9 | Initial analysis for characterizing and mitigating the pseudorange biases of BeiDou navigation satellite system显示文摘Pseudorange bias has become a practical obstacle in the field of high-precision global navigation satellite system(GNSS)applications,which greatly restricts the further development of high-precision applications.Unfortunately,no studies have been conducted on the pseudorange biases of the BeiDou navigation satellite system(BDS).To mitigate the effects of pseudorange biases on the BDS performance to the greatest extent possible,the origin of such BDS pseudorange biases are first thoroughly illustrated,based upon which the dependency of the biases on the receiver configurations are studied in detail.Owing to the limitations regarding the parameter re-settings for hardware receivers,software receiver technology was used to achieve the ergodicity of the receiver parameters,such as the correlator spacing and front-end bandwidth,using high-fidelity signal observations collected by a 40-m-high gain dish antenna at Haoping Observatory.Based on this,the pseudorange biases of the BDS B1I and B3I signals and their dependency on different correlator spacings and front-end bandwidths were adequately provided.Finally,herein,the suggested settings of the correlator spacing and front-end bandwidth for BDS receivers are in detail proposed for the first time.As a result,the pseudorange biases of the BDS signals will be less than 20 cm,reaching even under 10 cm,under this condition.This study will provide special attention to GNSS pseudorange biases,and will significantly promote a clear definition of the appropriate receiver parameter settings in the interface control documents of BDS and other individual satellite systems. | Chengyan He Xiaochun Lu Ji Guo Chengeng Su Wei Wang Meng Wang | 2020 | Satellite Navigation2020，1，1： | 7 |
| 10 | Activated cytotoxic lymphocytes promote tumor progression by increasing the ability of 3LL tumor cells to mediate MDSC chemoattraction via Fas signaling显示文摘Fas/FasL 系统播送细胞内部的 apoptotic 发信号,导致房间 apoptosis。然而,船边交货发信号也除了导致肿瘤房间 apoptosis 施加 non-apoptotic 功能。例如,船边交货发信号导致肺癌症肿瘤房间生产前列腺素 E2 (PGE2 ) 和成员导出 myeloid 的 suppressor 房间(MDSC ) 。激活的细胞毒素的 T 淋巴细胞(CTL ) 导致并且表示 FasL 在房间仍然是的 apoptosis 抵抗的肿瘤上在 CTL 开始的船边交货激活的 FasL,而是效果的高水平大部分不清楚。我们从 OT-1 老鼠净化了激活的 CD8 + T 房间,在肿瘤房间逃跑上评估了船边交货激活的规章的效果并且调查了相关机制。我们发现 CTL 导致了肿瘤细胞分泌 PGE2 和增加肿瘤经由船边交货发信号的 MDSC 的调停房间的 chemoattraction,它对肿瘤生长有利。我们的结果显示 CTL 可以参予肿瘤免疫者避免过程。就我们的知识而言,这是 CTL 在肿瘤逃跑由起一个作用的新奇机制。我们的调查结果含有经由对肿瘤的否定有免疫力的回答的减小提高 antitumor 免疫者反应的策略通过船边交货发信号由 CTL 支持了。 | Fei Yang Yinxiang Wei Zhijian Cai Lei Yu Lingling Jiang Chengyan Zhang Huanmiao Yan Qingqing Wang Xuetao Cao Tingbo Liang Jianli Wang | 2015 | Cellular & Molecular Immunology2015，12，1： | 6 |
| 11 | SEDIMENT TRANSPORT IN YALU RIVER ESTUARY显示文摘Tidal cycle measurements of tidal currents, salinity and water tempe rature, and suspended sediment concentrations were measured at four stations, to gether with surveys along two profiles short core collection within the Yalu Riv er estuary. Grain size analysis of the three core sediment showed that: 1) the s ediment from B1 to B3 became finer, worse sorting and positively skewed; 2) the diversification of matter origin became more and more evident from east to west; 3) the sediments over the region were of the same origin, as indicated by their similar colors and grain sizes. The data indicated that stratification occurred in the flood season, from upstream to downstream, and a salt wedge was formed. The water column was well mixed, but the longitudinal gradient of the salinity w as larger on spring tide. The results also showed that the dominating mechanism of suspended sediment transport in the Yalu River estuary was T1, T2, T3 and T5. The non-tidal steady advection transport was restricted by the net transport o f suspended sediment induced by mass Stoked drift directed to landwards, then th e net sediment transport rate were decreased and the turbidity maxima was also f avored to forming and extending. | GAOJian-hua GAOShu CHENGYan DONGLi-xian ZHANGJing | 2003 | Chinese Geographical Science2003，13，2： | 6 |
| 12 | On the Response of the Global Subduction Rate to Global Warming in Coupled Climate Models显示文摘The response of the global subduction rate to global warming was assessed based on a set of Intergovernmental Panel on Climate Change(IPCC) Fourth Assessment Report(AR4) models. It was found that the subduction rate of the global ocean could be significantly reduced under a warming climate, as compared to a simulation of the present-day climate. The reduction in the subduction volume was quantitatively estimated at about 40 Sv and was found to be primarily induced by the decreasing of the lateral induction term due to a shallower winter mixed layer depth. The shrinking of the winter mixed layer would result from intensified stratification caused by increased heat input into the ocean under a warming climate. A reduction in subduction associated with the vertical pumping term was estimated at about 5 Sv. Further, in the Southern Ocean, a significant reduction in subduction was estimated at around 24 Sv, indicating a substantial contribution to the weakening of global subduction. | LIU Chengyan WANG Zhaomin | 2014 | Advances in Atmospheric Sciences2014，31，1： | 6 |
| 13 | An investigation of the persistence property of wind power time series显示文摘Mining the inherent persistence property of the time series of wind power is crucial for forecasting and controlling wind power.Few common methods exist that can fully depict and quantify the persistence property.Based on the definition of the active power output state of a wind farm,this paper describes the statistical persistence property of the duration time and state transition.Based on the results of our analysis of significant amounts of wind power field measurements,it is found that the duration time of wind power conforms to an inverse Gaussian distribution.Additionally,the state transition matrix of wind power is discovered to yield a ridge property,the gradient of which is related to the time scale of interest.A systemaic methodology is proposed accordingly,allowing the statistical characteristics of the wind power series to be represented appropriately. | SUN HaiShun LI JiaMing LI JingHua Wu Tong WEN JinYu XIE HaiLian YUE ChengYan | 2014 | Science China(Technological Sciences)2014，57，8： | 5 |
| 14 | High-density genetic map construction and identification of loci controlling flower-type traits in Chrysanthemum(Chrysanthemum×morifolium Ramat.)显示文摘Flower type is an important and extremely complicated trait of chrysanthemum.The corolla tube merged degree(CTMD)and the relative number of ray florets(RNRF)are the two key factors affecting chrysanthemum flower type.However,few reports have clarified the inheritance of these two complex traits,which limits directed breeding for flower-type improvement.In this study,305 F1 hybrids were obtained from two parents with obvious differences in CTMD and RNRF performance.Using specific-locus amplified fragment sequencing(SLAF-seq)technology,we constructed a high-density genetic linkage map with an average map distance of 0.76 cM.Three major QTLs controlling CTMD and four major QTLs underlying RNRF were repeatedly detected in the 2 years.Moreover,the synteny between the genetic map and other Compositae species was investigated,and weak collinearity was observed.In QTL regions with a high degree of genomic collinearity,eight annotated genes were probed in the Helianthus annuus L.and Lactuca sativa L.var.ramosa Hort.genomes.Furthermore,20 and 11 unigenes were identified via BLAST searches between the SNP markers of the QTL regions and the C.vestitum and C.lavandulifolium transcriptomes,respectively.These results lay a foundation for molecular marker-assisted breeding and candidate gene exploration in chrysanthemum without a reference assembly. | Xuebin Song Yuhui Xu Kang Gao Guangxun Fan Fan Zhang Chengyan Deng Silan Dai He Huang Huaigen Xin Yingying Li | 2020 | Horticulture Research2020，7，1： | 5 |
| 15 | Long-term inorganic plus organic fertilization increases yield and yield stability of winter wheat显示文摘An understanding of wheat yield and yield stability response to fertilization is important for sustainable wheat production. A 36-year long-term fertilization experiment was employed to evaluate the yield and yield stability of winter wheat. Five fertilization regimes were compared,including(1) CK, no fertilizer;(2) NPK, inorganic fertilizer only;(3) O, organic fertilizer only;(4)NPKO, 50% of NPK plus 50% of O, and(5) HNPKO, 80% of NPK plus 80% of O. The greatest yield increase was recorded in HNPKO, followed by NPKO, with O producing the lowest mean yield increase. Over the 36 years, the rate of wheat yield increase in fertilized plots ranged from95.31 kg ha-1 year-1 in the HNPKO to 138.65 kg ha-1 year-1 in the O. Yield stability analysis using the additive main effects and multiplicative interactions(AMMI) method assigned 62.3%, 26.3%,and 11.4% of sums of squares to fertilization effect, environmental effect, and fertilization ×environment interaction effect, respectively. The combination of inorganic and organic fertilization(NPKO and HNPKO) appeared to produce more stable yields than O or NPK, with lower coefficients of variation and AMMI stability value. However, wheat grown with O seemed to be the most susceptible to climate change and the least productive among the fertilized plots.Significant correlations of grain yield with soil properties and with mean air temperature were observed. These findings suggest that inorganic + organic fertilizer can increase wheat yield and its stability by improvement in soil fertility and reduction in variability to climate change. | Huan Chen Aixing Deng Weijian Zhang Wei Li Yuqiang Qiao Taiming Yang Chengyan Zheng Chengfu Cao Fu Chen | 2018 | The Crop Journal2018，6，6： | 5 |
| 16 | On the Response of Subduction in the South Pacific to an Intensification of Westerlies and Heat Flux in an Eddy Permitting Ocean Model显示文摘Based on an eddy permitting ocean general circulation model, the response of water masses to two distinct climate scenarios in the South Pacific is assessed in this paper. Under annually repeating atmospheric forcing that is characterized by different westerlies and associated heat flux, the response of Subantarctic Mode Water(SAMW) and Antarctic Intermediate Water(AAIW) is quantitatively estimated. Both SAMW and AAIW are found to be warmer, saltier and denser under intensified westerlies and increased heat loss. The increase in the subduction volume of SAMW and AAIW is about 19.8 Sv(1 Sv =10~6m^3s^(-1)). The lateral induction term plays a dominant role in the changes in the subduction volume due to the deepening of the mixed layer depth(MLD). Furthermore, analysis of the buoyancy budget is used to quantitatively diagnose the reason for the changes in the MLD. The deepening of the MLD is found to be primarily caused by the strengthening of heat loss from the ocean to the atmosphere in the formation region of SAMW and AAIW. | Chengyan LIU Zhaomin WANG Bingrui LI Chen CHENG Ruibin XIA | 2017 | Advances in Atmospheric Sciences2017，34，4： | 5 |
| 17 | On the subtropical Northeast Pacific mixed layer depth and its influence on the subduction显示文摘The present climate simulations of the mixed layer depth(MLD) and the subduction rate in the subtropical Northeast Pacific are investigated based on nine of the CMIP5 models. Compared with the observation data,spatial patterns of the MLD and the subduction rate are well simulated in these models. The spatial pattern of the MLD is nonuniform, with a local maximum MLD(>140 m) region centered at(28°N, 135°W) in late winter. The nonuniform MLD pattern causes a strong MLD front on the south of the MLD maximum region, controls the lateral induction rate pattern, and then decides the nonuniform distribution of the subduction rate. Due to the inter-regional difference of the MLD, we divide this area into two regions. The relatively uniform Ekman pumping has little effect on the nonuniform subduction spatial pattern, though it is nearly equal to the lateral induction in values. In the south region, the northward warm Ekman advection(–1.75×10^(–7) K/s) controls the ocean horizontal temperature advection(–0.85×10^(–7) K/s), and prevents the deepening of the MLD. In the ensemble mean, the contribution of the ocean advection to the MLD is about –29.0 m/month, offsetting the sea surface net heat flux contribution(33.9 m/month). While in the north region, the southward cold advection deepens the MLD(21.4 m/month) as similar as the heat flux(30.4 m/month). In conclusion, the nonuniform MLD pattern is dominated by the nonuniform ocean horizontal temperature advection. This new finding indicates that the upper ocean current play an important role in the variability of the winter MLD and the subduction rate. | XIA Ruibin LIU Chengyan CHENG Chen | 2018 | Acta Oceanologica Sinica2018，37，3： | 4 |
| 18 | Optimal yield-related attributes of irrigated rice for high yield potential based on path analysis and stability analysis显示文摘Improvement of yield in rice(Oryza sativa L.) is vital for ensuring food security in China. Both rice breeders and growers need an improved understanding of the relationship between yield and yield-related traits. New indica cultivars(53 in 2007 and 48 in 2008) were grown in Taoyuan,Yunnan province, to identify important components contributing to yield. Additionally, two standard indica rice cultivars with similar yield potentials, II You 107(a large-panicle type) and Xieyou 107(a heavy-panicle type), were planted in Taoyuan, Yunnan province and Nanjing,Jiangsu province, from 2006 to 2008 to evaluate the stability of yield and yield-related attributes.Growth duration(GD), leaf area index(LAI), panicles per m2(PN), and spikelets per m2(SM) were significantly and positively correlated with grain yield(GY) over all years. Sequential path analysis identified PN and panicle weight(PW) as important first-order traits that influenced grain yield. All direct effects were significant, as indicated by bootstrap analysis. Yield potential varied greatly across locations but not across years. Plant height(PH), days from heading to maturity(HM), and grain weight(GW) were stable traits that showed little variation across sites or years, whereas GD(mainly the pre-heading period, PHP) and PN varied significantly across locations. To achieve a yield of 15 t ha-1, a cultivar should have a PH of 110–125 cm, a long GD with HM of approximately 40 days, a PN of 300–400 m-2, and a GW of 29–31 mg. | Ganghua Li Jun Zhang Congdang Yang Yunpan Song Chengyan Zheng Shaohua Wang Zhenghui Liu Yanfeng Ding | 2014 | The Crop Journal2014，2，4： | 4 |
| 19 | Hydrocarbon accumulation characteristics of beachbar sandstones in the southern slope of the Dongying Sag, Jiyang Depression, Bohai Bay Basin, China显示文摘A number of beach-bar sandstone reservoir beds are developed in the upper fourth member of the Eocene Shahejie Formation(Ess4) on the southern slope of the Dongying Sag. Based on the analysis of seismic and logging data, with characterization and petrographic studies of core and cutting samples, this paper analyzes the hydrocarbon accumulation characteristics in two typical blocks of the Boxing and Wangjiagang oilfields, especially reservoir bed heterogeneity and migration conditions that influence oil and gas distribution, calculates the index of reservoir bed quality(IRQ) with a mathematical method, and discusses the relationship between driving force and resistance of hydrocarbon accumulation. Taking into account the characteristics of thin interbeds in beach-bar sandstones, an experimental model simulated the characteristics of hydrocarbon migration and accumulation in thin interbedded sandstones with reservoir bed heterogeneity. The results showed that hydrocarbon distribution and properties were extremely non-uniform. Reservoir bed and migration conditions controlled hydrocarbon accumulation in beach-bar sandstones. IRQ is above 0.4 in the main hydrocarbon region. Sand body distribution, structural configuration and fault systems controlled the direction of regional migration and location of hydrocarbon accumulation. Simulation experiments indicated that the change of driving force for hydrocarbon migration affected selective accumulation mechanisms. Hydrocarbon moved vertically along fault zones to the reservoir and resulted in the distribution of hydrocarbon in the reservoir. Two kinds of hydrocarbon accumulation models exist in the study area. One is a hydrocarbon accumulation model controlled by reservoir bed heterogeneity and the second is a hydrocarbon accumulation model controlled by a complex migration system with faults connecting sandbodies. Finally, different exploration strategies should be adopted for the detailed exploration for beach-bar sandstone reservoirs according to different geological backgrounds. | Guo Song Tan Lijuan Lin Chengyan Li Hongnan Lü Xiuxiang Wang Hongtao | 2014 | Petroleum Science2014，11，2： | 4 |
| 20 | Discovery of the Proterozoic low-grade metamorphicsubmarine carbonatite lavas in China显示文摘The carbonatite lavas found in the Kunyang Group were formed in submarine extrusive environment. Many igneous features (e.g. colors, textures, structures, minerals, inclusions) are clear. But most of their petrologic characteristics are different from typical carbonatites over the world. Most petrologic details of the rocks are given by comparison with other carbonatites and adjacent sedimentary dolomites. The discovery of the lavas proves that the carbonatite volcano also existed in Kunyang rift. | Yongbei Zhang Qirong Wei Chengyan Xiu Hao Wang | 1998 | Chinese Science Bulletin1998，43，5： | 4 |
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