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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 | 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 |
| 4 | 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 |
| 5 | 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 |
| 6 | 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 |
| 7 | 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 |
| 8 | 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 |
| 9 | 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 |
| 10 | Development of BCPDA-Eu^3+-BAS Labeled Hepatitis B Surface Antibodies显示文摘 | TAN Wenjia SUN Zhixia XUAN Lili LI Junling XIE Wenbing HE Chengyan PAN Lihua | 2018 | Chemical Research in Chinese Universities2018，34，1： | 4 |
| 11 | Multifunctional Fibroblasts Enhanced via Thermal and Freeze-Drying Post-treatments of Aligned Electrospun Nanofiber Membranes显示文摘Parallel fibrous scaffolds play a critical role in controlling the morphology of cells to be more natural and biologically inspired.Among popular tissue engineering materials,poly(2-hydroxyethyl methacrylate)(pHEMA)has been widely investigated in conventional forms due to its biocompatibility,low toxicity,and hydrophilicity.However,the swelling of pHEMA in water remains a major concern.To address this issue,randomly oriented and aligned as-spun pHEMA nanofibrous scaffolds were first fabricated at speeds of 300 and 2000 rpm in this study,which were then post-treated using either a thermal or a freeze-drying method.In cell assays,human dermal fibroblasts(HDFs)adhered to the freeze-drying treated substrates at a significantly faster rate,whereas they had a higher cell growth rate on thermally-treated substrates.Results indicated that the structural properties of pHEMA nanofibrous scaffolds and subsequent cellular behaviors were largely dependent on post-treatment methods.Moreover,this study suggests that aligned pHEMA nanofibrous substrates tended to induce regular fibroblast orientation and unidirectionally oriented actin cytoskeletons over random pHEMA nanofibrous substrates.Such information has predictive power and provides insights into promising post-treatment methods for improving the properties of aligned pHEMA scaffolds for numerous tissue engineering applications. | Ya Li Qian Shen Jing Shen Xinbo Ding Tao Liu Jihuan He Chengyan Zhu Ding Zhao Jiadeng Zhu | 2021 | Advanced Fiber Materials2021，3，1： | 2 |
| 12 | The distribution law of re-malning oil in the fluvial sandstone reservoir with high water-cut: an example from the Zhong - 1 district in Gudao oil field 显示文摘 | Lin Chengyan Dang Chunmei Chen Li | 1998 | Scientia Geologica Sinica1998，7，3： | 1 |
| 13 | Recommendation for Cardiac Magnetic Resonance Imaging-Based Phenotypic Study:Imaging Part显示文摘Cardiac magnetic resonance(CMR)imaging provides important biomarkers for the early diagnosis of many cardiovascular diseases and has been reported to reveal phenome-wide associations of cardiac/aortic structure and functionality in popula-tion studies.Nevertheless,due to the complexity of operation and variations among manufactural vendors,magnetic field strengths,coils,sequences,scan parameters,and image analysis approaches,CMR is rarely used in large cohort studies.Existing guidelines mainly focused on the diagnosis of cardiovascular diseases,which did not aim to basic research.The purpose of this study was to propose a recommendation for CMR based phenotype measurements for cohort study.We classify the imaging sequences of CMR into three categories according to the importance and universality of correspond-ing measurable phenotypes.The acquisition time and repeatability of the phenotypic measurement were also taken into consideration during the categorization.Unlike other guidelines,this recommendation focused on quantitative measurement of large amount of phenotypes from CMR. | Chengyan Wang Yan Li Jun Lv Jianhua Jin Xumei Hu Xutong Kuang Weibo Chen He Wang | 2021 | Phenomics2021，1，4： | 1 |
| 14 | The distribution law of remaining oil in the fluvial sandstone reservoir with high water-ut an example from the zhong-1 district in Gudao oil field显示文摘 | Lin Chengyan Dong Chunmei Chen Li | 1998 | Scientia Geologica Sinica1998，7，3： | 1 |
| 15 | Measurement of Cerebral Oxygen Extraction Fraction Using Quantitative BOLD Approach:A Review显示文摘Quantification of brain oxygenation and metabolism,both of which are indicators of the level of brain activity,plays a vital role in understanding the cerebral perfusion and the pathophysiology of brain disorders.Magnetic resonance imaging(MRI),a widely used clinical imaging technique,which is very sensitive to magnetic susceptibility,has the possibility of substitut-ing positron emission tomography(PET)in measuring oxygen metabolism.This review mainly focuses on the quantitative blood oxygenation level-dependent(qBOLD)method for the evaluation of oxygen extraction fraction(OEF)in the brain.Here,we review the theoretic basis of qBOLD,as well as existing acquisition and quantification methods.Some published clinical studies are also presented,and the pros and cons of qBOLD method are discussed as well. | Hongwei Li Chengyan Wang Xuchen Yu Yu Luo He Wang | 2023 | Phenomics2023，3，1： | 1 |
| 16 | Partition-Based Cache Replacement to Manage Shared L2 Caches显示文摘The Least recently used(LRU) replacement has been widely employed by on-chip shared caches. With the increase of cache associativity, the performance gap between LRU and theoretical optimal replacement algorithm is significant, motivating us to design alternative replacement algorithms to improve cache performance. We propose a Partition-based cache replacement(PCR) algorithm to manage multi-core shared L2 caches. PCR takes into consideration recency and frequency information of cache access, and cache resource interference among multiple competing applications. PCR is effective to filter out the less frequently reused blocks through a dynamic insertion/promotion policy based on the target partitions, and ensures that some fraction of the working set is retained in the cache to contribute to more hits. Our evaluation shows that PCR improves performance of an 8-core system by an average of 11.3% over LRU-based cache. | FANG Juan WANG Jing LI Chengyan YAO Zhicheng KE Weimao | 2014 | Chinese Journal of Electronics2014，23，3： | 1 |
| 17 | The distribution law of remaining oil in the fluvial sandstone reservoir with high water-cut an example from the zhong-1 district in Gudao oil field显示文摘 | Lin Chengyan Dong Chunmei Chen Li | 1998 | Scientia Geologica Sinica1998，7，3： | 1 |
| 18 | Administration of Yeast Glucan on Immunity of Offspring in Turbot Scophthalmus maximus: A Trans-Generational Immune-Enhancing Effect显示文摘β-glucan has been shown to increase immunity and survival in various juvenile and adult fish both in freshwater and marine aquaculture species as well as in marine fish larvae. However, information about the trans-generational immune-enhancing effects of β-glucan remains rather limited. Here we clearly show that dietary intake of β-glucan enhanced the levels of C3, Bf and lysozyme in the serum of turbot as well as in their eggs released. We also show that yeast glucan induced a significant increase in lysozyme activity in both the serum and eggs. Moreover, the embryos derived from yeast glucan-treated turbot were more resistant to bacterial challenge than control embryos. By contrast, the administration of yeast glucan on female turbots had little influence on the egg development and embryonic development. Collectively, these data indicate that yeast glucan can be safely used to promote the non-specific trans-generational immunity in offspring of turbot. | JIANG Chengyan WANG Peng LIU Shousheng WANG Yanfeng LI Jun JI Guangdong | 2019 | Journal of Ocean University of China2019，18，4： | 1 |
| 19 | Tobacco Rattle Virus-induced Phytoene Desaturase (PDS) Silencing in Centaurea cyanus显示文摘Virus-induced gene silencing(VIGS)is a genetic tool used to assess gene function.Tobacco rattle virus(TRV)is a VIGS vector commonly used to induce endogenous gene silencing in plants.However,there is no VIGS system established for Centaurea spp.We evaluated the effectiveness of a TRV-based VIGS system using phytoene desaturase(PDS)as a reporter gene in Centaurea cyanus.Three methods including pressure-,vacuum-and apical meristem-infiltrationwere tested to infect C.cyanus seedlings.Photobleached leaveswere only obtained using apicalmeristem-infiltration after a 14 d treatment.The CcPDS transcripts in photobleached leaves were significantly reduced compared with that in green leaves treated with empty TRV.Four C.cyanus cultivars were tested to detect their VIGS responses,and‘Dwarf Tom Pouce Blue’was the most sensitive.The agro-infiltration condition was optimized by screening for the optimal seedling stage as well as the optimum Agrobacterium density for efficient silencing.Seedlings with four true leaves and infiltration with an Agrobacterium density of OD_(600)0.5 were optimal conditions to obtain more photobleached leaves and more intense photobleached phenotype.The results demonstrated the feasibility of TRV-based VIGS for functional analysis of genes in C.cyanus. | Chengyan Deng Fan Zhang Jiaying Wang Yanfei Li He Huang Silan Dai | 2021 | Horticultural Plant Journal2021，7，2： | 1 |
| 20 | Synergistic effects of CeO_(2)/Cu_(2)O on CO catalytic oxidation:Electronic interaction and oxygen defect显示文摘For CO catalytic oxidation,Cu and Ce species are of great importance,between which the synergistic effect is worth investigating.In this work,CeO_(2)/Cu_(2)O with Cu_(2)O {111} and {100} planes were comparatively explored on CO catalytic oxidation to reveal the effects of interfacial electronic interactions and oxygen defects.The activity result demonstrates that CeO_(2)/o-Cu_(2)O {111} has superior performance compared with CeO_(2)/c-Cu_(2)O {100}.Credit to the coordination unsaturated copper atoms(Cu_(CUS)) on oCu_(2)O {111} surface,the interfacial electronic interactions on CeO_(2)/o-Cu_(2)O {111} are more obvious than those on CeO_(2)/c-Cu_(2)O {100},leading to richer oxygen defect generation,better redox and activation abilities of CO and O_(2) reactants.Furthermore,the reaction mechanism of CeO_(2)/o-Cu_(2)O {111} on CO oxidation is revealed,i.e.,CO and O_(2) are adsorbed on the Cucus on Cu_(2)O {111} and oxygen defect of CeO_(2),respectively,and then synergistically promote the CO oxidation to CO_(2).The work sheds light on the designing optimized ceria and copper-based catalysts and the mechanism of CO oxidation. | Chengyan Ge Jingfang Sun Qing Tong Weixin Zou Lulu Li Lin Dong | 2022 | Journal of Rare Earths2022，40，8： | 1 |
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