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15篇 您的检索式:作者名="Dongliang Duan"
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1The influence of temperature on rare earth flotation with naphthyl hydroxamic acid显示文摘The influence of temperature on the complex process of Bayan Obo rare earth(RE) ore flotation with a collector of naphthyl hydroxamic acid(LF8#) was investigated. Industrial test data shows that the grade and recovery of RE increase with the temperature. However, the proportion of bastnaesite in the bulk concentrate increases as the RE grade improves. Adsorption mechanism of LF8# on the surfaces of bastnaesite and monazite were confirmed via zeta potential, UV/Vis Spectrophotometer(UV/Vis), Fourier transform infrared(FTIR), and X-ray photoelectron spectroscopy analyses(XPS). Although the results indicate that the total amount of the LF8# adsorption on the surface of bastnaesite and monazite decreases with increasing the temperature, the amount of stable adsorbed predominance of characteristic bonds(-C(=O)N-) from LF8# uptake on bastnaesite surfaces increases significantly at high temperatures. This conclusion indicates that the adsorption stability increases with increasing the temperature.For monazite, the amount of characteristic elements C and N in LF8# does not increase as the temperature increases on the mineral surface, but the proportion of characteristic bonds increases, which shows that the adsorption stability of LF8# on the surface of monazite also increases, but it is not as significant as bastnaesite, which may be one of the reasons that the floatability of bastnaesite is better than those of monazite. Pulp dispersion results show that the temperature improve the dispersions of both the gangue and RE minerals. This improved the flotation selectivity so that it favored RE minerals. The calculated bubble size distribution confirms that higher temperatures generate smaller bubbles, thereby increasing the bubble-particle collision probability and the recovery of RE minerals.Mei Li Kai Gao Dongliang Zhang Haijun Duan Linlin Ma Lan Huang 2018Journal of Rare Earths2018,36,1:13
2Higher levels of circulating monocyte-platelet aggregates are correlated with viremia and increased sCD 163 levels in HIV- 1 infection显示文摘单核白血球血小板总数(MPA ) 的增加的层次被报导高度与心血管的事件被相关。在这研究,在在 MPA 层次, HIV-1 viremia 和单核白血球激活之间的不同单核白血球子集和协会的 MPA 层次在 HIV-1 感染期间被评估。结果证明在所有三个单核白血球子集的 MPA 的百分比比在健康控制在 HIV-1-infected 题目是更高的,并且与血浆被联系在非古典、中间的单核白血球子集的病毒的负担。sCD14 和 sCD163 的血浆层次是在 HIV-1 感染的 upregulated 并且断然与病毒的负担被联系并且否定地把计数与 CD4 联系了。P-selectin glycoprotein ligand-1 (PSGL-1 ) 被显示被表示在显著地所有三个单核白血球子集上的底层并且否定地与 sCD163 水平被相关。MPA 水平与血浆 sCD163 的层次被相关,但是否定地在所有三个单核白血球子集上与 CD163 和 PSGL-1 相关。提高的有免疫力的激活地位与增加的 MPA 形成被相关,位于在单核白血球激活和 MPA 形成之间的潜在的相互作用下面。这个相互作用可能与在感染 HIV-1 的病人的更高的 thromboembolic 风险有关。Hua Liang Zhaojun Duan Dan Li Dongliang Li ZhengWang Li Ren Tao Shen Yiming Shao 2015Cellular & Molecular Immunology2015,12,4:5
3Genome resequencing and transcriptome profiling reveal structural diversity and expression patterns of constitutive disease resistance genes in Huanglongbing-tolerant Poncirus trifoliata and its hybrids显示文摘Huanglongbing(HLB)is the most destructive bacterial disease of citrus worldwide.While most citrus varieties are susceptible to HLB,Poncirus trifoliata,a close relative of Citrus,and some of its hybrids with Citrus are tolerant to HLB.No specific HLB tolerance genes have been identified in P.trifoliata but recent studies have shown that constitutive disease resistance(CDR)genes were expressed at much higher levels in HLB-tolerant Poncirus hybrids and the expression of CDR genes was modulated by Candidatus Liberibacter asiaticus(CLas),the pathogen of HLB.The current study was undertaken to mine and characterize the CDR gene family in Citrus and Poncirus and to understand its association with HLB tolerance in Poncirus.We identified 17 CDR genes in two citrus genomes,deduced their structures,and investigated their phylogenetic relationships.We revealed that the expansion of the CDR family in Citrus seems to be due to segmental and tandem duplication events.Through genome resequencing and transcriptome sequencing,we identified eight CDR genes in the Poncirus genome(PtCDR1-PtCDR8).The number of SNPs was the highest in PtCDR2 and the lowest in PtCDR7.Most of the deletion and insertion events were observed in the UTR regions of Citrus and Poncirus CDR genes.PtCDR2 and PtCDR8 were in abundance in the leaf transcriptomes of two HLB-tolerant Poncirus genotypes and were also upregulated in HLB-tolerant,Poncirus hybrids as revealed by real-time PCR analysis.These two CDR genes seem to be good candidate genes for future studies of their role in citrus-CLas interactions.Nidhi Rawat Brajendra Kumar Ute Albrecht Dongliang Du Ming Huang Qibin Yu Yi Zhang Yong-Ping Duan Kim D Bowman Fred G Gmitter Jr Zhanao Deng 2017Horticulture Research2017,4,1:5
4A Deep Reinforcement Learning Algorithm for the Power Order Optimization Allocation of AGC in Interconnected Power Grids显示文摘The integration of distributed generations(solar power,wind power),energy storage devices,and electric vehicles,causes unpredictable disturbances in power grids.It has become a top priority to coordinate the distributed generations,loads,and energy storages in order to better facilitate the utilization of new energy.Therefore,a novel algorithm based on deep reinforcement learning,namely the deep PDWoLF-PHC(policy dynamics based win or learn fast-policy hill climbing)network(DPDPN),is proposed to allocate power order among the various generators.The proposed algorithm combines the decision mechanism of reinforcement learning with the prediction mechanism of a deep neural network to obtain the optimal coordinated control for the source-grid-load.Consequently it solves the problem brought by stochastic disturbances and improves the utilization rate of new energy.Simulations are conducted with the case of the improved IEEE two-area and a case in the Guangdong power grid.Results show that the adaptability and control performance of the power system are improved using the proposed algorithm as compared with using other existing strategies.Lei Xi Lipeng Zhou Lang Liu Dongliang Duan Yanchun Xu Liuqing Yang Shouxiang Wang 2020CSEE Journal of Power and Energy Systems2020,6,3:4
5Mechanism of phthalic acid collector in flotation separation of fluorite and rare earth显示文摘The mechanism of phthalic acid,a dicarboxylic acid collector,in flotation separation of fluorite and rare earth(RE)was studied in this paper.The experimental data of flotation show that phthalic acid,as the collector,can realize highly efficient separation of fluorite and rare earth under weakly acidic conditions.The adsorption mechanism of phthalic acid on the surface of fluorite and bastnaesite was analyzed in this paper by means of the zeta potential measurement,the Fourier transform infrared(FT-IR),the X-ray photoelectron spectroscopy(XPS)and the stability constant measurement of active metal ion and phthalic acid coo rdination complex.According to the zeta potential testing results,the surfaces of fluorite adsorb the collector phthalate ion with negative charge under weakly acidic conditions which,in turn,increases its electronegativity and results in the motion of its potential.After the reaction between phthalic acid and fluorite ores under weakly acidic conditions,the peak of the fluorite ores is found to have significant changes in the FT-IR results,indicating strong chemical adsorption on the surfaces of phthalic acid and fluorite ores.According to the XPS analysis,the peak of benzene ring of phthalic acid is as high as 2%on the surface of fluorite,while no obvious characteristic peak of benzene ring is found on the surface of bastnaesite.According to the pH potentiometric titration results,the stability constant Ktotal of calcium phthalate complex within the acid range is higher than the stability constant K’total of cerium phthalate complex,indicating that the complex generated between phthalic acid and Ca^(2+)is more stable than the complex generated between phthalic acid and Ce^(3+).The possible reason is that Ca^(2+),with the highest reticular density,plays a prevailing role in the octahedron structure of fluorite amidst the acidic media.As the active point of flotation,Ca^(2+)works with the carboxyl groups of the collector phthalic acid(-C=O-)to form polycyclic calcium phthalate complex.Sheng Chang Mei Li Kai Gao Dongliang Zhang Haijun Duan Linlin Ma Zheng Ruan 2022Journal of Rare Earths2022,40,1:4
6Impacts of TRMM SRR assimilation on the numerical prediction of tropical cyclone显示文摘Impacts of the four-dimensional variation (4DVAR) assimilation of Tropical Rainfall Measuring Mission (TRMM)/TMI surface rainfall rate (SRR) on the initialization and simulation of TC Danas in 2001 are studied. A number of sensitivity experiments are designed to evaluate the performance of assimilation during the particular stage when Danas developed from a tropical depression towards a typhoon, as well as an abrupt turning. Under the dynamic and thermodynamic constraints of meso-scale model and the 4DVAR, the TRMM SRR data are directly assimilated in high horizontal resolution (18 km). On the basis of the adjustment of initial model field, 4DVAR of TRMM SRR considerably improved the depiction of TC’s structure and rainfall. The same explanation can also be given to the enhancement of simulation on TC’s intensity and track. In comparison with the popular idea of twice steps of SRR assimilation, namely, 4DVAR plus 1DVAR, the retrieval error is expected to be avoided in the procedure of direct 4DVAR. In addition, the TRMM SRR 4DVAR within a high-resolution model can take into account as much information as observed and is expected to be performed in operational use if the observed rainfall data are routinely available.MA Leiming QIN Zenghao DUAN Yihong LIANG Xudong WANG Dongliang 2006Acta Oceanologica Sinica2006,25,5:3
7Social Energy:Mining Energy From the Society显示文摘The inherent nature of energy,i.e.,physicality,sociality and informatization,implies the inevitable and intensive interaction between energy systems and social systems.From this perspective,we define 'social energy' as a complex sociotechnical system of energy systems,social systems and the derived artificial virtual systems which characterize the intense intersystem and intra-system interactions.The recent advancement in intelligent technology,including artificial intelligence and machine learning technologies,sensing and communication in Internet of Things technologies,and massive high performance computing and extreme-scale data analytics technologies,enables the possibility of substantial advancement in socio-technical system optimization,scheduling,control and management.In this paper,we provide a discussion on the nature of energy,and then propose the concept and intention of social energy systems for electrical power.A general methodology of establishing and investigating social energy is proposed,which is based on the ACP approach,i.e., 'artificial systems'(A), 'computational experiments'(C) and 'parallel execution'(P),and parallel system methodology.A case study on the University of Denver(DU) campus grid is provided and studied to demonstrate the social energy concept.In the concluding remarks,we discuss the technical pathway,in both social and nature sciences,to social energy,and our vision on its future.Jun Jason Zhang David Wenzhong Gao Yingchen Zhang Xiao Wang Xiangyang Zhao Dongliang Duan Xiaoxiao Dai Jun Hao Fei-Yue Wang 2017IEEE/CAA Journal of Automatica Sinica2017,4,3:2
8Dispersion of TiN in aqueous media显示文摘Jing Zhang Liping Duan Dongliang Jiang etc 2005Journal of Colloid and Interface Science2005,286,:1
9Sensitivity analysis for leaf area index (LAI) estimation from CHRIS/PROBA data显示文摘敏感分析在这研究从多角的形象为植被叶区域索引(LAI ) 的检索被进行。五光谱植被索引(力) 在工程上从紧缩的高分辨率成像分光计被导出因为在董事会上自治(CHRIS/PROBA ) 想象,并且与 LAI 有关,在江西省从在 situ 测量获得了,中国,为五个植被社区。到从不同观察角度的力的变化的 LAI 检索的敏感用最好合适的线性 VI-LAI 模型的斜坡的比率被评估到它的根均方差。VI-LAI 模型的敏感和可靠性被植被社区的异质影响的结果表演,和植被的那表演在 LAI 索引评价沿着观察角度变化。VI-LAI 模型比为具球果的森林为有宽广的叶树的森林比为低成长灌木草并且也为高树是更可靠的。越大树高度和叶尺寸,越 higher 敏感。当相对简单结构的具球果的森林,灌木,和草根本显示出类似的敏感时,有阔叶烟草树的森林有更高的敏感,特别在倾斜的角度角度。多角的土壤或大气的参数调整将希望在 LAI 评价改进力的表演,它将要求进一步的调查。Jianjun CAO Zhujun GU Jianhua XU Yushan DUAN Yongmei LIU Yongjuan LIU Dongliang LI 2014Frontiers of Earth Science2014,8,3:1
10Modulation Selection from a Battery Power Efficiency Perspective显示文摘DUAN Dongliang QU Fengzhong YANG Liuqing 2010IEEE Transactions on Communications2010,58,:1
11Cooperative Intelligence for Autonomous Driving显示文摘Autonomous driving is an emerging technology attracting interests from various sectors in recent years.Most of existing work treats autonomous vehicles as isolated individuals and has focused on developing separate intelligent modules.In this paper,we attempt to exploit the connectivity among vehicles and propose a systematic framework to develop autonomous driving techniques.We first introduce a general hierarchical information fusion framework for cooperative sensing to obtain global situational awareness for vehicles.Following this,a cooperative intelligence framework is proposed for autonomous driving systems.This general framework can guide the development of data collection,sharing and processing strategies to realize different intelligent functions in autonomous driving.CHENG Xiang DUAN Dongliang YANG Liuqing ZHENG Nanning 2019ZTE Communications2019,17,2:0
12Feeding Effect of Growing-Finishing Pigs under Fine Division of Feeding Stages显示文摘In order to study the feeding effect of fine division of feeding stages on the growing-finishing pigs,96 healthy Duroc × Landrace ×Yorkshire hybrid commercial pigs with similar age in days,size,and body weight about 15 kg,half boars and half sows,randomly divided into3 treatments( each treatment repeated 4 times,and each repetition 8 pigs). According to the body weight division standard,three stages,four stages,and five stages of feeding were adopted separately. The daily ration of with different nutrition levels was used,body weight and feed consumption were measured,and effects of different feeding methods on body weight increase,feed utilization,and economic benefits of growing-finishing pigs. The results showed that compared with the three-stage feeding,the body weight of five-stage and four-stage feeding increased by 4. 18%( P < 0. 01) and 2. 41%( P < 0. 05),respectively,and the body weight of five-stage feeding increased by 1. 74%( P < 0. 05) compared with that of four-stage feeding; the daily feed consumption of five-stage and four-stage feeding increased 3. 10%( P < 0. 01) and 1. 70%(P <0. 01),respectively,and the daily feed consumption of five-stage feeding was 1. 37% higher than that of four-stage feeding. The feed cost of five-stage feeding and four-stage feeding increased 3. 32%( P < 0. 01) and 1. 61%( P < 0. 05) separately,and the feed cost of five-stage feeding was 1. 69% higher than that of four-stage feeding( P < 0. 01). The income from average body weight increase of five-stage and fourstage feeding increased by 5. 47%( P < 0. 01) and 3. 59%( P < 0. 01) respectively,and the benefit of average body weight increase of fivestage feeding was 1. 81% higher than that of four-stage feeding( P > 0. 05). The crude protein consumption from average body weight increase of five-stage and four-stage feeding decreased by 2. 28%( P < 0. 01) and 1. 68%( P < 0. 01),respectively; the crude protein consumption from average body weight increase of five-stage feeding was 0. 67% lower than that of four-stage feeding; the feed conversion ratio of five-stage feeding,four-stage feeding,and three-stage feeding was 2. 92,2. 93,and 2. 95 respectively. The results showed that compared with the threestage feeding,the four-stage and five-stage feeding could significantly increase the body weight of the growing-finishing pigs,improve the feed utilization level and improve the economic benefits,and the effect of five-stage feeding was better than the four-stage feeding.Dongliang DUAN Xiumei MU Shuhua WANG Jianghua DAN Xiaoliang CHENG Fulin JIAO Jinbao WANG Hongzheng REN 2017Asian Agricultural Research2017,9,9:0
13Flavanone and flavonoid hydroxylase genes regulate fiber color formation in naturally colored cotton显示文摘Using naturally colored cotton(NCC)can eliminate dyeing,printing and industrial processing,and reduce sewage discharge and energy consumption.Proanthocyanidins(PAs),the primary coloration components in brown fibers,are polyphenols formed by oligomers or polymers of flavan-3-ol units derived from anthocyanidins.Three essential structural genes for flavanone and flavonoid hydroxylation encoding flavanone-3-hydroxylase(F3H),flavonoid 3’-hydroxylase(F3’H)and flavonoid 3’5’-hydroxylase(F3’5’H)are initially committed in the flavonoid biosynthesis pathway to produce common precursors.The three genes were all expressed predominantly in developing fibers of NCCs,and their expression patterns varied temporally and spatially among NCC varieties.In GhF3Hi,GhF3’Hi and GhF3’5’Hi silenced lines of NCC varieties XC20 and ZX1,the expression level of the three genes decreased in developing cotton fiber,negatively correlated with anthocyanidin content and fiber color depth.Fiber color depth and type in RNAi lines changed with endogenous gene silencing efficiency and expression pattern,the three hydroxylase genes functioned in fiber color formation.GhF3H showed functional differentiation among NCC varieties and GhF3’H acted in the accumulation of anthocyanin in fiber.Compared with GhF3’H,GhF3’5’H was expressed more highly in brown fiber with a longer duration of expression and caused lighter color of fibers in GhF3’5’H silenced lines.These three genes regulating fiber color depth and type could be used to improve these traits by genetic manipulation.Hongli Zheng Bailin Duan Bo Yuan Zhengbin Chen Dongliang Yu Liping Ke Wenlong Zhou Haifeng Liu Yuqiang Sun 2023The Crop Journal2023,11,3:0
14Prospective study of the short-term effect of 1.75 mmol/L calcium concentration dialysate on hemodialysis patients显示文摘Objective:The purpose of the current study was to determine the influence of a 1.75 mmol/L calcium(Ca)concentration dialysate(DCa 1.75)during maintenance hemodialysis(MHD)therapy for patients with chronic kidney disease,mineral,and bone disorders(CKD-MBD)on biochemical indices and clinical prognosis.Methods:Four hundred eighty-three MHD patients from three hemodialysis centers were en-rolled.During 24 months of follow-up(January 2011 to December 2012),289 patients from Center 1 who used 1.50 mmol/L Ca concentration dialysate(Dca 1.50)between January and December 2011 and DCa 1.75 between January and December 2012 were included in the high Ca group.The remaining 194 patients from the other centers who used DCa 1.50 for hemodialysis between January 2011 and December 2012 were included in the ordinary Ca group.The following CKD-MBD biochemical indices were monitored:blood Ca;blood phosphorus(P);intact parathyroid hormone(iPTH);and bone-specific alkaline phosphatase(BAP).The metastatic calcification index included calcification of aortic arch scoring(AoACS),abdominal aorta calcification(AAC),and cardiac valve calcification(CVC).The study end points included all-cause mortality(ACM),car-diovascular and cerebrovascular diseases(CCVDs),fractures,and new metastatic calcifications.The changes between the two groups in the observed indices were compared.Results:Two hundred eighty-four patients in the high Ca group(98.3%)and 194 patients in the ordinary Ca group(100.0%)completed an average follow-up of 21.3±5.6 months.After DCa 1.75 was used,the blood Ca in the high Ca group increased[(2.39±0.22)mmol/L vs.(2.34±0.21)mmol/L,t=-2.910,P=0.004]compared to the previous year,and increased[(2.39±0.22)mmol/L vs.(2.30±0.16)mmol/L,t=5.187,P<0.001]compared to the ordinary Ca group in the same year.The blood P and iPTH decreased[(1.78±0.39)mmol/L vs.(1.89±0.42)mmol/L,t=2.909,P=0.004 and(306.5±298.6)pg/ml vs.(425.7±365.1)pg/ml,t=8.377,P<0.001,respectively]compared with the previous year,and decreased[(1.78±0.39)mmol/L vs(1.86±0.39)mmol/L,t=-2.016,P=0.044 and(306.5±298.6)pg/ml vs.(366.6±341.0)pg/ml,t=-2.113,P=0.035,respectively]compared with the ordinary Ca group in the same year.There was no difference in AoACS between the two groups before and after the change in DCa in the high Ca group(P>0.05).In 2011,there was 13 CCVDs,2 fractures,and 13 new metastatic calcifications in the ordinary Ca group compared to 8 CCVDs,3 fractures,and 16 new metastatic calcifications in the high Ca group;there were no statistically significant differences in the incidence of end point events between the two groups(χ^(2)=2.747,P=0.098).In 2012,the values for the ordinary Ca group were 13,2,and 15,respec-tively,while the values for the high Ca group were 8,1,and 19,respectively,which indicated a statistically significant difference in the incidence of end point events between the two groups(χ^(2)=4.391,P=0.036).Conclusion:Short-term use of DCa 1.75 significantly reduced the blood P and iPTH levels in MHD patients,significantly increased the blood Ca level,did not increase the proportion of new cardiovascular calcifications,and decreased the overall inci-dence of end point events.Dongliang Zhang Fang Sun Yilun Zhou Xiaofeng Duan Yi Sun Taigen Cui Wenhu Liu 2014Family Medicine and Community Health2014,2,2:0
15Research Progress of Sunscreen Agents and Encapsulate Technology显示文摘The harm of ultraviolet radiation to human skin and the mechanism of traditional sunscreen agents and natural sunscreen agents were reviewed.Sunscreen agents were usually encapsulated with delivery systems due to the instability and skin permeability.The research progress of several common sunscreen delivery systems was introduced,the future research direction of sunscreen agents was also prospected.Zheng Xiaoyang Meng Xiangjing Li Min Liu Bo Zhang Xiangkui Duan Chong gang Zhang Daizhou Ling Peixue Wang Dongliang 2023China Detergent & Cosmetics2023,8,2:0
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