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| 1 | MR-DBSCAN: a scalable MapReduce-based DBSCAN algorithm for heavily skewed data显示文摘 | Yaobin HE Haoyu TAN Wuman LUO Shengzhong FENG Jianping FAN | 2014 | Frontiers of Computer Science2014，8，1： | 18 |
| 2 | Herbgenomics: A stepping stone for research into herbal medicine显示文摘From the prehistoric era until the publishing of the Compendium of Materia Medica and the first scientific Nobel Prize in the Chinese mainland for Tu's discovery on anti-malarial tablets,each milestone and stepping stone in the developmental history of herbal medicine involved intrepid exploration,bold hypothesis formulation,and cautious verification.After thousands of years of discovery and development,herbal research has entered a new era—the era of herbgenomics.Herbgenomics combines herbal and genomic research,bridging the gap between traditional herbal medicine and cutting-edge omics studies.Therefore,it provides a general picture of the genetic background of traditional herbs,enabling researchers to investigate the mechanisms underlying the prevention and treatment of human diseases from an omics perspective. | Haoyu Hu Xiaofeng Shen Baosheng Liao Lu Luo Jiang Xu Shilin Chen | 2019 | Science China(Life Sciences)2019，62，7： | 13 |
| 3 | Molecular behaviors in thin film lubrication——Part two: Direct observation of the molecular orientation near the solid surface显示文摘Over the past twenty years, thin film lubrication(TFL) theory has been used to characterize the molecular behaviors in lubrication films thinner than 100 nm, effectively bridging the gap between elastohydrodynamic lubrication and boundary lubrication. Unfortunately, to date, the TFL molecular model proposed in 1996 has not been directly proven by experimental detection. Herein, a method based on surface-enhanced Raman spectroscopy was developed to show both the packing and orienting of liquid molecules in the TFL regime. By trapping liquid crystal molecules between a structured silver surface and a glass surface, molecular ordering states dominated by shear effect and surface effect were successfully distinguished. A nanosandwich structure consisting of an adsorbed layer, an ordered-molecule layer, and a fluid layer was demonstrated. Molecule imaging in TFL was achieved. Our results illustrate the molecular behaviors and lubrication mechanism in nanoconfined films and facilitate the lubrication design of nanoelectromechanical and microelectromechanical systems. | Ming GAO Haoyu LI Liran MA Yuan GAO Linwei MA Jianbin LUO | 2019 | Friction2019，7，5： | 5 |
| 4 | Implementation of regional Acute Stroke Care Map increases thrombolysis rates for acute ischaemic stroke in Chinese urban area in only 3 months显示文摘Background The rate of intravenous thrombolysis for acute ischaemic stroke remains low in China.We investigated whether the implementation of a citywide Acute Stroke Care Map(ASCaM)is associated with an improvement of acute stroke care quality in a Chinese urban area.Methods The ASCaM comprises 10 improvement strategies and has been implemented through a network consisting of 20 tertiary hospitals.We identified 7827 patients with ischaemic stroke admitted from April to October 2017,and 506 patients underwent thrombolysis were finally included for analysis.Results Compared with‘pre-ASCaM period’,we observed an increased rate of administration of tissue plasminogen activator within 4.5 hours(65.4% vs 54.5%;adjusted OR,1.724;95% CI 1.21 to 2.45;p=0.003)during‘ASCaM period’.In multivariate analysis models,‘ASCaM period’was associated with a significant reduction in onset-to door time(114.1±55.7 vs 135.7±58.4 min,p=0.0002)and onset-to needle time(ONT)(169.2±58.1 vs 195.6±59.3 min,p<0.0001).Yet no change was found in door-to needle time.Clinical outcomes such as symptomatic intracranial haemorrhage,favourable functional outcome(modified Rankin Scale≤2)and in-hospital mortality remained unchanged.Conclusion The implementation of ASCaM was significantly associated with increased rates of intravenous thrombolysis and shorter ONT.The ASCaM may,in proof-of principle,serve as a model to reduce treatment delay and increase thrombolysis rates in Chinese urban areas and possibly other highly populated Asian regions. | Yi Sui Jianfeng Luo Chunyao Dong Liqiang Zheng Weijin Zhao Yao Zhang Ying Xian Huaguang Zheng Bernard Yan Mark Parsons Li Ren Ying Xiao Haoyue Zhu Lijie Ren Qi Fang Yi Yang Weidong Liu Bing Xu | 2021 | Stroke & Vascular Neurology2021，6，1： | 4 |
| 5 | Remediation performance and mechanisms of Cu and Cd contaminated water and soil using Mn/Al-layered double oxide-loaded biochar显示文摘The combined pollution of heavy metals is ubiquitous worldwide.Mn/Al-layered double oxide-loaded crab shells biochar (LDO/BC) was prepared,so as to remediate the combined pollution of Cd and Cu in soil and water.The pristine and used LDO/BC were characterized and the results revealed that the layered double oxide was successfully loaded on crab shells biochar (BC) and metal element Ca in crab shells was beneficial to the formation of more regular layered and flake structure.The maximal adsorption capacity (Qm) of LDO/BC for aqueous Cu^(2+)and Cd^(2+)was 66.23 and 73.47 mg/g,respectively.LDO/BC and BC were used to remediate e-waste-contaminated soil for the first time and exhibited highly efficient performance.The extraction amount of Cu and Cd in the contaminated soil by diethylene triamine penta-acetic acid (DTPA) after treating with 5% LDO/BC was significantly reduced from 819.84 to 205.95 mg/kg (with passivation rate 74.8%) and 8.46 to 4.16 mg/kg(with passivation rate 50.8%),respectively,inferring that the bioavailability of heavy metals declined remarkably.The experimental result also suggested that after remediation by LDO/BC the exchangeable and weak acid soluble Cu and Cd in soil translated to reducible,residual and oxidizable fraction which are more stable state.Precipitation,complexation and ion exchange were proposed as the possible mechanisms for Cd and Cu removal.In general,these experiment results indicate that LDO/BC can be a potentially effective reagent for remediation of heavy metal contaminated water and soil. | Pengcheng Lin Hang Liu Hua Yin Minghan Zhu Haoyu Luo Zhi Dang | 2023 | Journal of Environmental Sciences2023，，3： | 2 |
| 6 | Effects of dietary nanocrystalline cellulose supplementation on growth performance,carcass traits,intestinal development and lipid metabolism of meat ducks显示文摘The influence of nanocrystalline cellulose(NCC) supplementation on growth performance, carcass traits,intestinal development, and lipid metabolism was assessed in 600 one-day-old male meat ducks(Cherry Valley ducks) from 1 to 35 d of age. Diets were supplemented with 0,200,500,800 and 1,500 mg/kg NCC during both the starter(1-14 d) and grower(15-35 d) phases. Each dietary treatment consisted of 8 replicate cages of 15 birds. Supplementation of NCC was associated with dose dependent increases in BW gain and feed intake(P < 0.01) during 1-14 d of age and in BW at 35 d of age. As NCC content increased,the percentage of breast meat weight(P < 0.05) and leg(with bone) weight(P < 0.05) linearly increased,while the percentage of abdominal fat weight(P < 0.01) linearly decre.ased in ducks at 35 d of age.Supplementation of NCC resulted in a dose-dependent increase in the weight(P < 0.05) and density(P < 0.01) of the cecum. The percentage of total hepatic lipid content(P < 0.01) at 14 d of age and serum triglyceride(TG) concentration(P = 0.052) at 35 d of age linearly decreased with increasing of dietary NCC addition. In conclusion, inclusion of 1,500 mg/kg NCC in feed resulted in the greatest improvements in duck performance, intestinal development and lipid deposition. | Haoyue Han Keying Zhang Xuemei Ding Shiping Bai Yueheng Luo Jianping Wang Huanwei Peng Qiufeng Zeng | 2016 | Animal Nutrition2016，，3： | 2 |
| 7 | Is oral microbiome of children able to maintain resistance and functional stability in response to short-term interference of ingesta?显示文摘Dear Editor,A series of studies had focused on the ecological stability of human microbiome(Lozupone et al.,2012;Faith et al.,2013;Moya and Ferrer,2016).Despite the continuous perturbation and the highly personalized composition within the human microbiome(Human Microbiome Project,2012),healthy adults stably maintain their microbial communities in terms of space and time(Faith et al.,2013;Moya and Ferrer,2016;Oh et al.,2016).This stability is proved to be critical for the well-being of human body(Lozupone et al.,2012).On the contrary,major shifts in microbial community composition are often related to diseases(Lynch and Pedersen,2016). | Fangqiao Wei Xiangyu Sun Yufeng Gao Haoyu Dou Yang Liu Lili Su Haofei Luo Ce Zhu Qian Zhang Peiyuan Tong Wen Ren Zhe Xun Ruochun Guo Yuanlin Guan Shenghui Li Yijun Qi Junjie Qin Feng Chen Shuguo Zheng | 2021 | Protein & Cell2021，12，6： | 1 |
| 8 | Simultaneous adsorption of As(Ⅲ) and Pb(Ⅱ) by the iron-sulfur codoped biochar composite:Competitive and synergistic effects显示文摘Simultaneous elimination of As(Ⅲ) and Pb(Ⅱ) from wastewater is still a great challenge.In this work,an iron-sulfur codoped biochar (Fe/S-BC) was successfully fabricated in a simplified way and was applied to the remediate the co-pollution of As(Ⅲ) and Pb(Ⅱ).The positive enthalpy indicated that the adsorption in As-Pb co-pollution was an endothermic reaction.The mechanism of As(Ⅲ) removal could be illustrated by surface complexation,oxidation and precipitation.In addition to precipitation and complexation,the elimination mechanism of Pb(Ⅱ) also contained ion exchange and electrostatic interactions.Competitive and synergistic effects existed simultaneously in the co-contamination system.The suppression of As(Ⅲ) was ascribed to competitive complexation of the two metals on Fe/S-BC,while the synergy of Pb(Ⅱ) was attributed to the formation of the PbFe2(AsO_(4))2(OH)2.Batch experiments revealed that Fe/S-BC had outstanding ability to remove As(Ⅲ) and Pb(Ⅱ),regardless of pH dependency and interference by various coexisting ions.The maximum adsorption capacities of the Fe/S-BC for As(Ⅲ) and Pb(Ⅱ) were 91.2 mg/g and 631.7 mg/g,respectively.Fe/S-BC could be treated as a novel candidate for the elimination of As(Ⅲ)-Pb(Ⅱ) combined pollution. | Yijun Chen Qintie Lin Xiaoqing Wen Jin He Haoyu Luo Quanfa Zhong Libin Wu Jiaqi Li | 2023 | Journal of Environmental Sciences2023，，3： | 1 |
| 9 | A high-resolution cell atlas of the domestic pig lung and an online platform for exploring lung single-cell data显示文摘The genetically engineered pig is regarded as an optimal source of organ transplantation for humans and an excellent model for human disease research,given its comparable physiology to human beings.A myriad of single-cell RNA sequencing(sc RNA-seq)data on humans has been reported,but such data on pigs are scarce.Here,we apply sc RNA-seq technology to study the cellular heterogeneity of 3-month-old pig lungs,generating the single-cell atlas of 13,580 cells covering 16 major cell types.Based on these data,we systematically characterize the similarities and differences in the cellular cross-talk and expression patterns of respiratory virus receptors in each cell type of pig lungs compared with human lungs.Furthermore,we analyze pig lung xenotransplantation barriers and reported the cell-type expression patterns of 10 genes associated with pig-to-human immunobiological incompatibility and coagulation dysregulation.We also investigate the conserved transcription factors(TFs)and their candidate target genes and constructed five conserved TF regulatory networks in the main cell types shared by pig and human lungs.Finally,we present a comprehensive and openly accessible online platform,Scdb Lung.Our sc RNA-seq atlas of the domestic pig lung and Scdb Lung database can guide pig lung research and clinical applicability. | Lijing Zhang Jiacheng Zhu Haoyu Wang Jun Xia Ping Liu Fang Chen Hui Jiang Qiuling Miao Weiying Wu Lingli Zhang Lihua Luo Xiaosen Jiang Yong Bai Chengcheng Sun Dongsheng Chen Xingliang Zhang | 2021 | Journal of Genetics and Genomics2021，48，5： | 1 |
| 10 | Investigating the Changes in Air Pollutant Emissions over the Beijing-Tianjin-Hebei Region in February from 2014 to 2019 through an Inverse Emission Method显示文摘In recent years,China has implemented several measures to improve air quality.The Beijing-Tianjin-Hebei(BTH)region is one area that has suffered from the most serious air pollution in China and has undergone huge changes in air quality in the past few years.How to scientifically assess these change processes remain the key issue in further improving the air quality over this region in the future.To evaluate the changes in major air pollutant emissions over this region,this paper employs ensemble Kalman filtering(EnKF)for integrating the national ground monitoring pollutant observation data and the Nested Air Quality Prediction Modeling System(NAQPMS)simulation data to inversely estimate the emission rates of SO_(2),NOX,CO,and primary PM_(2.5)over BTH region in February from 2014 to 2019.The results show that SO_(2),NOX,CO,and primary PM_(2.5)emissions in the BTH region decreased in February from 2014 to 2019 by 83%,37%,41%,and 42%,while decreases in Beijing during this period were 86%,67%,59%,and 65%,respectively.Compared with the prior emission inventory,the inversion emission inventory reduces the uncertainty of multi-pollutant simulation in the BTH region,with simulated root mean square errors of the monthly average concentrations of SO_(2),NOX,PM_(2.5),and CO reduced by 41%,30%,31%,and 22%,respectively.The average uncertainties of SO_(2),NOX,PM_(2.5),and CO inversion emissions in2014-19 are±14.03%yr^(-1),±28.91%yr^(-1),±126.15%yr^(-1),and±43.58%yr^(-1).Compared with the uncertainty of MEIC emission,the uncertainties of all species changed by+2%yr^(-1),-2%yr^(-1),-26%yr^(-1),and-4%yr^(-1),respectively.The spatial distribution results illustrate that air pollutant emissions are mainly distributed over the eastern and southern BTH regions.The spatial gap between the inversion emissions and MEIC emissions was further closed in 2019 compared to 2014.The results of this paper can provide a new reference for assessing changes in air pollution emissions over the BTH region in recent years and validating a bottom-up emission inventory. | Xuechun LUO Xiao TANG Haoyue WANG Lei KONG Huangjian WU Weiguo WANG Yating SONG Hongyan LUO Yao WANG Jiang ZHU Zifa WANG | 2023 | Advances in Atmospheric Sciences2023，40，4： | 1 |
| 11 | An intravenous clarithromycin lipid emulsion with a high drug loading, H-bonding and a hydrogen-bonded ion pair complex exhibiting excellent antibacterial activity显示文摘The aim of this study was to develop an intravenous clarithromycin lipid emulsion(CLE)with good stability and excellent antibacterial activity. The CLE was prepared by the thinfilm dispersed homogenization method. The interaction between clarithromycin(CLA) and cholesteryl hemisuccinate(CHEMS) was confirmed by DSC, FT-IR and^1H NMR analysis. The interfacial drug loading, thermal sterilization, freeze–thaw stability, and in vitro and in vivo antibacterial activity were investigated systematically. DSC, FT-IR and^1H NMR spectra showed that CHEMS(CLA: CHEMS, M ratio 1:2) could interact with CLA through H-bonding and a hydrogen-bonded ion pair. The CHEMS was found necessary to maintain the stability of CLE.Ultracentrifugation showed that almost 88% CLA could be loaded into the interfacial layer.The optimized CLE formulation could withstand autoclaving at 121 °C for 10 min and remain stable after three freeze–thaw cycles. The in vitro susceptibility test revealed that the CLA–CHEMS ion-pair and CLE have similar activity to the parent drug against many different bacterial strains. The in vivo antibacterial activity showed that the ED50 of intravenous CLE was markedly lower than that of CLA solution administrated orally. CLE exhibited pronounced antibacterial activity and might be a candidate for a new nanocarrier for CLA with potential advantages over the current commercial formulation. | Haoyu Gong Sicong Geng Qi Zheng Puxiu Wang Lifeng Luo Xiuzhi Wang Yan Zhang Yu Zhang Haibing He Xing Tang | 2016 | Asian Journal of Pharmaceutical Sciences2016，11，5： | 1 |
| 12 | MR-DBSCAN: An Efficient Parallel Density-based Clustering Algorithm using MapReduce 显示文摘 | Yaobin He Tan Haoyu Luo Wuman Huajian Mao Di Ma Shengzhong Feng Jianping Fan | 2011 | IEEE 17th International Conference on Parallel and Distributed Systems2011，，： | 1 |
| 13 | Stem Cell-Like Circulating Tumor Cells Indicate Poor Prognosis in Gastric Cancer显示文摘 | Man Li Baogang Zhang Zhiguang Zhang Xia Liu Xiangjuan Qi Jianqiu Zhao Yong Jiang Haoyu Zhai Yinglan Ji Dan Luo Shiwu Zhang | 2014 | BioMed Research International2014，，： | 1 |
| 14 | LOOKNoC: a low-loss, non-blocking, scalable passive optical interconnect network-on-chip architecture显示文摘Low-loss, non-blocking, scalable passive optical interconnect network on-chip(LOOKNoC) structure was proposed based on 2×2 optical exchange switches, using wavelength division multiplexing(WDM)technology to expand to 8×8, 16×16, 32×32, 64×64 passive optical interconnection networks, which can achieve non-blocking communication. The experimental results show that based on the 16×16 optical interconnection network structure, the number of microring resonators(MRs) in LOOKNoC was reduced by 90.9%, 90.9%, 20.0% and 75.0% compared with the generic wavelength-routed optical router(GWOR), λ-router, topology and CrossBar structure. By testing the performance parameters based on the structure of 16×16 by the OMNET++ platform, as the result shows, the average insertion loss of LOOKNoC is 3.0%, 11.6%, 4.8% and 16.7% less than that of GWOR, λ-router, Mesh, and CrossBar structures. | Deng Junyong Wu Haoyue Luo Jiaying Shan Rui Liu Xinchuang | 2021 | The Journal of China Universities of Posts and Telecommunications2021，28，1： | 0 |
| 15 | Viral receptor profiles of masked palm civet revealed by single-cell transcriptomics显示文摘Civets are small mammals belonging to the family Viverridae.The masked palm civets(Paguma larvata)served as an intermediate host in the bat-to-human transmission of severe acute respiratory syndrome coronavirus(SARS-Co V)in 2003(Guan et al.,2003).Because of their unique role in the SARS outbreak,civets were suspected as a potential intermediate host of SARS-Co V-2. | Peiwen Ding Haoyu Wang Jiacheng Zhu Fuyu An Jinqian Xu Xiangning Ding Lihua Luo Weiying Wu Qiuyu Qin Yanan Wei Wandong Zhao Zhiyuan Lv Haimeng Li Yixin Zhu Meiling Li Wensheng Zhang Yanan Zhang Zhihua Ou Huan Liu Yan Hua | 2022 | Journal of Genetics and Genomics2022，49，11： | 0 |
| 16 | Application of biocompatible custom ceria nanoparticles in improving the quality of liver grafts for transplantation显示文摘Liver transplantation(LT),an ultimate and vital method for treating end-stage liver disease,is often accompanied by ischemiareperfusion injury(IRI)resulting from warm or cold ischemia of the donor liver.Organ protection techniques are used to improve the quality of liver grafts(from retrieval to implantation).Reactive oxygen species(ROS)cause oxidative stress,which is considered a crucial factor in IRI after LT.Nano antioxidants capable of scavenging ROS alleviate IRI in multiple types of organs and tissues.In this study,we synthesized ceria nanoparticles(NPs)with antioxidant properties using a pyrolysis method and covered them with phospholipid-polyethylene glycol to improve their biocompatibility in vivo.We investigated the potential organprotective effect of ceria NPs and the underlying mechanisms.Ceria NPs promoted liver function recovery after LT by attenuating IRI in liver grafts in vivo.The protective effect of ceria NPs on liver grafts was investigated by applying hypothermic oxygenated machine perfusion ex vivo.Ceria NPs attenuated hypoxia reoxygenation-or H_(2)O_(2)-induced hepatocyte injury by enhancing mitochondrial activity and ROS scavenging in vitro.These effects may be associated with the activation of the nuclear factor erythroid-derived 2-related factor 2(Nrf2)/Kelch-like ECH-associated protein 1(Keap1)/heme oxygenase 1(HO-1)signaling pathway.In conclusion,ceria NPs may serve as a promising antioxidant agent for the treatment of hepatic IRI after LT. | Yinbiao Qiao Jianhui Li Suchen Bian Chenyue Zhan Jia Luo Li Jiang Haoyu Li Hao Wu Cheng Zhang Shusen Zheng Haiyang Xie Penghong Song | 2023 | Nano Research2023，16，4： | 0 |
| 17 | Microbiome and metabolome dysbiosis analysis in impaired glucose tolerance for the prediction of progression to diabetes mellitus显示文摘Gut microbiota and circulating metabolite dysbiosis predate important pathological changes in glucose metabolic disorders;however,comprehensive studies on impaired glucose tolerance(IGT),a diabetes mellitus(DM)precursor,are lacking.Here,we perform metagenomic sequencing and metabolomics on 47 pairs of individuals with IGT and newly diagnosed DM and 46 controls with normal glucose tolerance(NGT);patients with IGT are followed up after 4 years for progression to DM.Analysis of baseline data reveals significant differences in gut microbiota and serum metabolites among the IGT,DM,and NGT groups.In addition,13 types of gut microbiota and 17 types of circulating metabolites showed significant differences at baseline before IGT progressed to DM,including higher levels of Eggerthella unclassified,Coprobacillus unclassified,Clostridium ramosum,L-valine,L-norleucine,and L-isoleucine,and lower levels of Eubacterium eligens,Bacteroides faecis,Lachnospiraceae bacterium 3_1_46FAA,Alistipes senegalensis,Megaspaera elsdenii,Clostridium perfringens,α-linolenic acid,10E,12Z-octadecadienoic acid,and dodecanoic acid.A random forest model based on differential intestinal microbiota and circulating metabolites can predict the progression from IGT to DM(AUC=0.87).These results suggest that microbiome and metabolome dysbiosis occur in individuals with IGT and have important predictive values and potential for intervention in preventing IGT from progressing to DM. | Boxun Zhang Xuan Zhang Zhen Luo Jixiang Ren Xiaotong Yu Haiyan Zhao Yitian Wang Wenhui Zhang Weiwei Tian Xiuxiu Wei Qiyou Ding Haoyu Yang Zishan Jin Xiaolin Tong Jun Wang Linhua Zhao | 2024 | Journal of Genetics and Genomics2024，51，1： | 0 |
| 18 | The R168G heterozygous mutation of tropomyosin 3 (TPM3) was identified in three family members and has manifestations ranging from asymptotic to serve scoliosis and respiratory complications显示文摘According to existing reports,mutations in the slow tropomyosin gene(TPM3)may lead to congenital fiber-type disproportion(CFTD),nemaline myopathy(NM)and cap myopathy(CD).They are all congenital myopathies and are associated with clinical,pathological and ge-netic heterogeneity.A ten-year-old girl with scoliosis was unable to wean from mechanical ventilation after total intravenous anesthesia.The girl has scoliosis,respiratory insufficiency,motion delay and muscle weakness;her younger brother has a similar physiology but does not have scoliosis or respiratory insufficiency,and her parents are healthy.We conducted genetic testing and found a c.502C>G(p.R168G)heterozygous mutation in the family.This mutation originated from the father and was autosomal dominant.Muscle biopsy results indicated that no special structures were present,and the type I fiber ratio was not notably high compared to previous reports.Although the family members have the same mutations,their clinical mani-festations are quite different. | Haoyue Xu Hang Liu Tao Chen Bo Song Jin Zhu Xing Liu Ming Li Cong Luo | 2021 | Genes & Diseases2021，8，5： | 0 |
| 19 | Studies on polyoxymethylene dimethyl ethers production from dimethoxymethane and 1,3,5-trioxane over SO_(4)^(2-)/ZrO_(2)-TiO_(2)显示文摘Polyoxymethylene dimethyl ethers(OMEs)with physical properties similar to those of diesel has received significant attention as green additives for soot emission suppression.Herein,series of SO_(4)^(2-)/ZrO_(2)-TiO_(2)catalysts were developed for OMEs production from dimethoxymethane(DMM)and1,3,5-trioxane through sequential formaldehyde monomer insertion into C-O bond of DMM.Not Lewis but Bronsted acid sites were identified to be active for the decomposition of 1,3,5-trioxane into formaldehyde unit,however,both of them are effective for the chain propagation of DMM via formaldehyde unit insertion into C-O bond.Kinetic studies indicated each chain growth step exhibited the same parameters and activation barrier on corresponding Bronsted and Lewis acid sites due to the same reaction mechanism and very similar chemical structure of OMEs.Also,the catalytic stability investigation suggested the deactivation behavior was derived from the carbon deposition,and the decay factor could be exponentially correlated with the amount of coke accumulation. | Haoyu Yao Jiangcheng Li Jiangyan Li Xiangfeng Liang Gang Wang Haiyan Luo | 2023 | Chinese Journal of Chemical Engineering2023，61，9： | 0 |
| 20 | Research on error accumulation control of three-dimensional adjustment with offset constraint显示文摘Background Currently,laser tracker is the primary instrument used to carry out three-dimensional position measurement in accelerator alignment.Theoretically,three-dimensional measuring data processed by three-dimensional adjustment are more rigorous,however,error accumulation is found in practice.Purpose In order to control error accumulation and further improve the measurement accuracy of accelerator alignment,this research introduces the laser alignment system into the activity of measurement and data processing.Methods A measurement scheme combining laser tracker and laser alignment system is proposed.To construct the constraint condition,the offset values from the measuring points to the laser straight-line datum were used.To carry out the three-dimensional adjustment with offset constraint,the laser tracker observations were used.Results A three-dimensional adjustment function model of laser tracker observations is given.The construction method of the constraint equation is researched,and the calculation formulas of the three-dimensional adjustment with offset constraint are derived.A 200 m linac tunnel control network is designed,using simulation measurement method,the measuring data of laser tracker and the offset values from the measuring points to the laser straight-line datum were generated.The simulated data are calculated by the method given in this paper and the result is analyzed.Conclusion Simulation result shows introducing the laser alignment system into laser tracker measurement and applying the three-dimensional adjustment with offset constraint can effectively suppress the error accumulation caused by long distance move station measurement. | Wang Xiaolong Kang Ling Dong Lan Li Bo Men Lingling Luo Tao Wang Tong Liang Jing He Zhenqiang Ke Zhiyong Ma Na Lu Shang Han Yuanying Yan Luping Zhang Luyan Liu Xiaoyang Yan Haoyue Li Chunhua Wu Lei | 2022 | Radiation Detection Technology and Methods2022，6，4： | 0 |
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