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29篇 您的检索式:作者名="Anhua Li"
    题名 作者 年代 出处 被引量
1Effect 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 2012International Journal of Mining Science and Technology2012,22,3:22
2A multicenter hospital-based diagnosis study of automated breast ultrasound system in detecting breast cancer among Chinese women显示文摘Objective: The automated breast ultrasound system(ABUS) is a potential method for breast cancer detection;however, its diagnostic performance remains unclear. We conducted a hospital-based multicenter diagnostic study to evaluate the clinical performance of the ABUS for breast cancer detection by comparing it to handheld ultrasound(HHUS) and mammography(MG).Methods: Eligible participants underwent HHUS and ABUS testing; women aged 40–69 years additionally underwent MG. Images were interpreted using the Breast Imaging Reporting and Data System(BI-RADS).Women in the BI-RADS categories 1–2 were considered negative. Women classified as BI-RADS 3 underwent magnetic resonance imaging to distinguish true-and false-negative results. Core aspiration or surgical biopsy was performed in women classified as BI-RADS 4–5, followed by a pathological diagnosis. Kappa values and agreement rates were calculated between ABUS, HHUS and MG.Results: A total of 1,973 women were included in the final analysis. Of these, 1,353(68.6%) and 620(31.4%)were classified as BI-RADS categories 1–3 and 4–5, respectively. In the older age group, the agreement rate and Kappa value between the ABUS and HHUS were 94.0% and 0.860(P<0.001), respectively; they were 89.2% and0.735(P<0.001) between the ABUS and MG, respectively. Regarding consistency between imaging and pathology results, 78.6% of women classified as BI-RADS 4–5 based on the ABUS were diagnosed with precancerous lesions or cancer; which was 7.2% higher than that of women based on HHUS. For BI-RADS 1–2, the false-negative rates of the ABUS and HHUS were almost identical and were much lower than those of MG.Conclusions: We observed a good diagnostic reliability for the ABUS. Considering its performance for breast cancer detection in women with high-density breasts and its lower operator dependence, the ABUS is a promising option for breast cancer detection in China.Xi Zhang Xi Lin Yanjuan Tan Ying Zhu Hui Wang Ruimei Feng Guoxue Tang Xiang Zhou Anhua Li Youlin Qiao 2018Chinese Journal of Cancer Research2018,30,2:13
3CitGVD:a comprehensive database of citrus genomic variations显示文摘Citrus is one of the most important commercial fruit crops worldwide.With the vast genomic data currently available for citrus fruit,genetic relationships,and molecular markers can be assessed for the development of molecular breeding and genomic selection strategies.In this study,to permit the ease of access to these data,a web-based database,the citrus genomic variation database(CitGVD,http://citgvd.cric.cn/home)was developed as the first citrusspecific comprehensive database dedicated to genome-wide variations including single nucleotide polymorphisms(SNPs)and insertions/deletions(INDELs).The current version(V1.0.0)of CitGVD is an open-access resource centered on 1,493,258,964 high-quality genomic variations and 84 phenotypes of 346 organisms curated from in-house projects and public resources.CitGVD integrates closely related information on genomic variation annotations,related gene annotations,and details regarding the organisms,incorporating a variety of built-in tools for data accession and analysis.As an example,CitGWAS can be used for genome-wide association studies(GWASs)with SNPs and phenotypic data,while CitEVOL can be used for genetic structure analysis.These features make CitGVD a comprehensive web portal and bioinformatics platform for citrus-related studies.It also provides a model for analyzing genome-wide variations for a wide range of crop varieties.Qiang Li Jingjing Qi Xiujuan Qin Wanfu Dou Tiangang Lei Anhua Hu Ruirui Jia Guojin Jiang Xiuping Zou Qin Long Lanzhen Xu Aihong Peng Lixiao Yao Shanchun Chen Yongrui He 2020Horticulture Research2020,7,1:4
4Dependence of magnetic properties on microstructure and composition of Ce-Fe-B sintered magnets显示文摘In this paper,dependence of magnetic properties on microstructure and composition of Ce-Fe-B sintered magnets with Cu-doped Ce-rich alloy addition was investigated.It shows that the maximum energy product(BH)(max)and coercivity H(cj)of Ce-Fe-B sintered magnet are improved from 6.76 to 9.13 MGOe by 35.1%,and from 1.44 to 1.67 kOe by 16.0%,respectively,via adding 5 wt%liquid phase alloy of Ce(35.58)Fe(57.47)Cu6 B(0.95)(at%).Compared with the magnet without Cerich alloy addition,the volume fraction of the grain-boundary phase with low melting point increases in the magnet with Ce-rich alloy additio n,which is be ne ficial to imp roving the microstructure and promoting the coercivity enhancement of the magnet.In the Ce-Fe-B magnet with Ce-rich alloy addition,Cu and Ce enrich in the grain boundaries of the magnet after annealing,therefore the as-annealed magnet has a higher coercivity than the as-sintered magnet.A distinct Fe-rich layer with the average thickness of 60 nm is found in the grain boundaries in the magnet without Ce-rich alloy addition,but it seems that Fe-rich phase disappears in the magnet with Ce-rich alloy addition.The present work suggests that the further improvement of coercivity in the Ce-Fe-B sintered magnets is expectable by designing the composition and structure of added liquid phase alloys.Longlong Xi Anhua Li Haibo Feng Min Tan Wei Sun Minggang Zhu Wei Li 2019Journal of Rare Earths2019,37,8:4
5LIN28 coordinately promotes nucleolar/ribosomal functions and represses the 2C-like transcriptional program in pluripotent stem cells显示文摘LIN28 is an RNA binding protein with important roles in early embryo development,stem cell differentiation/re-programming,tumorigenesis and metabolism.Previous studies have focused mainly on its role in the cytosol where it interacts with Let-7 microRNA precursors or mRNAs,and few have addressed LIN28's role within the nucleus.Here,we show that LIN28 displays dynamic temporal and spatial expression during murine embryo development.Maternal LIN28 expression drops upon exit from the 2-cell stage,and zygotic LIN28 protein is induced at the forming nucleolus during 4-cell to blas-tocyst stage development,to become dominantly expressed in the cytosol after implantation.In cultured pluripotent stem cells(PSCs),loss of LIN28 led to nucleolar stress and activation of a 2-cell/4-cell-like transcriptional program characterized by the expression of endogenous retrovirus genes.Mechanistically,LIN28 binds to small nucleolar RNAs and rRNA to maintain nucleolar integrity,and its loss leads to nucleolar phase separation defects,ribosomal stress and activation of P53 which in turn binds to and activates 2C transcription factor Dux.LIN28 also resides in a complex containing the nucleolar factor Nucleolin(NCL)and the transcrip-tional repressor TRIM28,and LIN28 loss leads to reduced occupancy of the NCL/TRIM28 complex on the Dux and rDNA loci,and thus de-repressed Dux and reduced rRNA expression.Lin28 knockout cells with nucleolar stress are more likely to assume a slowly cycling,translationally inert and anabolically inactive state,which is a part of previously unappreciated 2C-like transcriptional program.These findings elucidate novel roles for nucleolar LIN28 in PSCs,and a new mechanism linking 2C program and nucleolar functions in PSCs and early embryo development.Zhen Sun Hua Yu Jing Zhao Tianyu Tan Hongru Pan Yuqing Zhu Lang Chen Cheng Zhang Li Zhang Anhua Lei Yuyan Xu Xianju Bi Xin Huang Bo Gao Longfei Wang Cristina Correia Ming Chen Qiming Sun Yu Feng Li Shen Hao Wu Jianlong Wang Xiaohua Shen George Q.Daley Hu Li Jin Zhang 2022Protein & Cell2022,13,7:4
6Core competence evaluation standards for emergency nurse specialist: Developing and testing psychometric properties显示文摘Introduction:Nurse specialists are being cultivated and trained in China to cope with the international development of nursing discipline.However,an empirical summary and reviews of literature have shown a lack of core competence evaluation standards for emergency nurse specialists(ENSs)in China.ENS training has been conducted in several regions without any effective competence evaluation standards.This paper describes the development and psychometric testing of the Core Competence Evaluation Standards for Emergency Nurse Specialists(CCESENS)in the Chinese context.Methods:Several rigorous research methods were applied.The proposed evaluation process consisted of two phases with seven steps.First,the Core Competence Framework Model for Emergency Nurse Specialist(CCFMENS)was established,and 118 items were generated through a review of literature,theoretical analysis,and expert interviews.Drafts of the dimensions and items were evaluated by two-round Delphi methods.Analysis hierarchy process was used to determine the weight of each dimension.Second,field testing was performed among 138 senior emergency nurses.Internal consistency and correlation analysis were applied to test the reliability and validity of the model.Results:The CCESENS consisted of five first-level dimensions,16 second-level dimensions,and 55 items.Cronbach's a coefficient of overall standards was 0.972,and each dimension ranged from 0.508 to 0.972.Expert content validity index was 0.818,and the correlation coefficients of the five first-level dimensions with the overall standards CCESENS ranged from 0.701 to 0.886(P<0.05).Discussion:The CCESENS demonstrated sound internal consistency reliability,content validity,and construct validity.The proposed standard provides an objective standard and reference for assessing,training,and evaluating core competence of ENS.Luo Fan Li Gui Shuhua Xi Anhua Qiao 2016International Journal of Nursing Sciences2016,3,3:3
7CsWAKL08,a pathogen-induced wall-associated receptor-like kinase in sweet orange,confers resistance to citrus bacterial canker via ROS control and JA signaling显示文摘Citrus bacterial canker(CBC)is a disease resulting from Xanthomonas citri subsp.citri(Xcc)infection and poses a grave threat to citrus production worldwide.Wall-associated receptor-like kinases(WAKLs)are proteins with a central role in resisting a range of fungal and bacterial diseases.The roles of WAKLs in the context of CBC resistance,however,remain unclear.Here,we explored the role of CsWAKL08,which confers resistance to CBC,and we additionally analyzed the molecular mechanisms of CsWAKL08-mediated CBC resistance.Based on systematic annotation and induced expression analysis of the CsWAKL family in Citrus sinensis,CsWAKL08 was identified as a candidate that can be upregulated by Xcc infection in the CBC-resistant variety.CsWAKL08 can also be induced by the phytohormones salicylic acid(SA)and methyl jasmonic acid(MeJA)and spans the plasma membrane.Overexpression of CsWAKL08 resulted in strong CBC resistance in transgenic sweet oranges,whereas silencing of CsWAKL08 resulted in susceptibility to CBC.The peroxidase(POD)and superoxide dismutase(SOD)activities were significantly enhanced in the CsWAKL08-overexpressing plants compared to the control plants,thereby mediating reactive oxygen species(ROS)homeostasis in the transgenic plants.Moreover,the JA levels and the expression of JA biosynthesis and JA responsive genes were substantially elevated in the CsWAKL08 overexpression plants relative to the controls upon Xcc infection.Based on these findings,we conclude that the wall-associated receptor-like kinase CsWAKL08 positively regulates CBC resistance through a mechanism involving ROS control and JA signaling.These results further highlight the importance of this kinase family in plant pathogen resistance.Qiang Li Anhua Hu Jingjing Qi Wanfu Dou Xiujuan Qin Xiuping Zou Lanzhen Xu Shanchun Chen Yongrui He 2020Horticulture Research2020,7,1:3
8Analysis of eighty-one cases with breast lesions using automated breast volume scanner and comparison with handheld ultrasound显示文摘Xi Lin Jianwei Wang Feng Han Jianhua Fu Anhua Li 2011European Journal of Radiology2011,,5:2
9Determination of estrogens in human urine by high-performance liquid chromatography/diode array detec- tion with ultrasound-assisted cloud-point extraction显示文摘Zou Yan Li anhua Jin Hua 2012Anal Biochem2012,421,2:1
10Polyethylene glycol radical-initiated aerobic propargylic oxidation in dense carbon dioxide显示文摘The selective aerobic oxidation of alkynes to correspondingα,β-acetylenic ketones was achieved in polyethylene glycol/dense CO2/O2 biphasic system without any catalyst or additive.The effects of reaction parameters,e.g.temperature,CO2 pressure,PEG molecular weight and loading on the reaction were carefully examined.Moreover,various substrates worked well in the presence of PEG 1000 under 5 MPa of CO2 and 2 MPa of O2 at 100℃for 12 to 24 h and acceptable yield and selectivity could be obtained in most cases.Preliminary mechanistic investigations were also discussed.Zhenfeng Diao Bin Li Bing Yu Anhua Liu Liangnian He 2013Journal of Energy Chemistry2013,22,3:1
11Investigation of Structure and Magnetic Properties of Rare Earth-Leaned Pr2 ( Fe, Co) 14 ( C, B ) Type Nanocomposites 显示文摘Li Anhua Chiu Chunhao Chang W C 2006Journal of Iron and Steel Research2006,13,:1
12Analysis of eighty-one cases with breast lesions using automated breast volume scanner and comparison with handheld ultrasound显示文摘Xi Lin Jianwei Wang Feng Han Jianhua Fu Anhua Li 2011European Journal of Radiology2011,,5:1
13Is type Ⅰ alpha 2 collagen gene responsible for intracranial aneurysm in Northeast China?显示文摘In this study, we investigated whether a single nucleotide polymorphism (rs42524 G > C) in the type Ⅰ alpha 2 collagen gene was associated with sporadic ruptured intracranial aneurysm or its clinical characteristics in patients from Northeast China. Genotyping of the rs42524 G > C polymorphism was carried out using a polymerase chain reaction-restriction fragment length polymorphism assay. The data showed that the frequency of the rs42524 GC + CC genotype was significantly higher than the GG genotype among intracranial aneurysm patients whose Hunt and Hess grading scale was > 3. In addition, the rs42524 G > C genotype was found to have a statistically significant association with intracranial aneurysm risk. These findings indicate that the type Ⅰ alpha 2 collagen gene gene may be involved in a predisposition to intracranial aneurysm in the Northeast Chinese population. Crucially, the rs42524 C allele may be an important risk factor for increased severity of the condition in patients with ruptured intracranial aneurysms.Pengfei Wu Bo Li Anhua Wu Yunjie Wang 2013Neural Regeneration Research2013,8,5:1
14Reduction of copper oxide in- duced by 172 nm vacuum ultraviolet radiation at ambient temperature显示文摘LI Jianxiong LIU Anhua 2011J Electron Mater2011,40,:1
15Study on Strengthening and Toughening of Sintered Rare-Earth Permanent Magnets 显示文摘Li Wei Li Anhua Wang Huijie 2009Journal of Applied Physics2009,105,7:1
16Electrocatalyt ie oxidation and ion chromatographic detection of Br^- , I^-, SO3^2-, S2O3^2- and SCN^- at a platinum particle- based glassy carbon modified electrode显示文摘LIU Anhua XU Liang LI Tao 1995Journal of Chromatogr : A1995,699,:1
17Recent patents on anammox process显示文摘Anhua Li Guoping Sun Meiying Xu 2008Recent Patents on Engineering2008,2,:1
18Degradation of Disposal Hydroxyl-Terminated Polybutadiene Composite Solid Propellant显示文摘With the greatly increasing amount of discarded hydroxyl-terminated polybutadiene(HTPB)propellant year by year,it is of high significance to study the safe,efficient and environmental processing method of disposal HTPB propellant.In this paper,the decomposition agents are formulated for degrading the waste composite solid propellant.It is found that the following formulations of butanone 25%-55%,xylene 30%-75%,deionized water 40%-45%have effective influence on the degradation of the waste composite solid propellant.The proper degradation time is found to be about 7-8 h.With the help of infrared spectrum analysis,scanning electron microscope imaging,thermogravimetric analysis and solvent viscosity test,it was proved that after degradation reaction on the propellant sometimes,a large number of irregular fractures occurred in bulk resulting from effective degradation.The characterization of the propellant after degradation showed that the hardness of the propellant decreased,the viscosity increased,and a large number of holes and cracks appeared on the surface.The results showed that the formulated degradation agent and degradation condition perform good degradation effects on HTPB solid propellant.LU Kai YI Ying ZHENG Hua SHU Kaikai DENG Anhua HU Taoxian NIU Caoping LI Dan 2020Wuhan University Journal of Natural Sciences2020,25,3:0
19The Jinsha River Groundwater Observation Network and Discussion about Its Earthquake Precursor Monitoring Capability显示文摘A groundwater observational network for monitoring seismic precursors has been established at the reservoirs on the lower reaches of the Jinsha River in southwestern China, where a series of hydropower stations are under construction. It is the second network in China that is operated by enterprises with the purpose to observe and study earthquake precursors in reservoir areas. This paper presents the layout and technical constitution of the network, features of its observational wells and aquifers and the preliminary result of its experimental operation. Its capability to monitor seismic precursor is evaluated based on an analysis of the well-aquifer system as well as the multiple-monthly, monthly, daily and hourly variations of water levels and water temperatures observed by this network.Li Wanming Che Yongtai Liu Chenglong Yu Jinzi He Anhua 2012Earthquake Research in China2012,26,2:0
20Predicting ADME/Tox properties of hydroxytyrosol in the leaves of Olea europaea L.显示文摘In order to study the possibility of hydroxytyrosol(HT)as a drug,we used SwissADME system to predict ADME of HT and pkCSM system to predict Tox of HT.The results show that hydroxytyrosol meets the Lipinski’s five principles of drug-like properties.With strong efficacy and pharmacological activity,HT has high drug-likeness degree.With good bioavailability,it can be easily absorbed by the gastrointestinal tract,though not absorbed by skin.Hydroxytyrosol has not only a strong potency and pharmacological activity,but also no liver toxicity and skin allergy.Tox data predicts that it has mutagenic potential,which may be the result of overreduction.Suzhen Jiang Xinghua Liu Hongjian Yu Shihong Li Jingming Jia Anhua Wang 2023Asian Journal of Traditional Medicines2023,18,2:0
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