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A robust scheduling algorithm for space telescopes with unpredictable tasks

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Science China(Technological Sciences) 2021年第3期64卷 571-584页

作者： li dalin GU YanFeng JAUBERT Jean liU YuRong BAI Meng FENG Zhun School of Electronics and Information Engineering Harbin Institute of TechnologyHarbin 150001China National Space Science Center Chinese Academy of SciencesBeijing 100190China Centre National d’Etudes Spatiales Toulouse31401France

The original preset schedule of space telescopes can be disrupted when they receive ultra-high-priority unpredictable *** main objective of this study is to observe such unpredictable tasks,the instability of which leads to failures in delivering the promises *** paper proposes a method for retaining the robustness of the original *** use space-based multi-band variable objects monitor(SVOM)mission as an example to introduce the proposed ***,the reasons for instability are discussed in *** proactive strategies are proposed to promote the robustness of the *** proactive strategies use the available windows of a given list of ***,the realistic problem of SVOM is analysed using a rescheduling algorithm based on NSGA-II experiments with SVOM scenarios showing that the two proposed strategies are effective in reducing the instability caused by unpredictable interruption.

关键词： multi-objective scheduling rescheduling robustness SVOM telescope

Using restored two-dimensional X-ray images to reconstruct the three-dimensional magnetopause

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Earth and Planetary Physics 2024年第1期8卷 133-154页

作者： RongCong Wang JiaQi Wang dalin li TianRan Sun XiaoDong Peng YiHong Guo National Space Science Center Chinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing100049China Aerospace Information Research Institute Chinese Academy of SciencesBeijing 100094China

Astronomical imaging technologies are basic tools for the exploration of the universe,providing basic data for the research of astronomy and space *** Soft X-ray Imager(SXI)carried by the Solar wind Magnetosphere Ionosphere link Explorer(SMILE)aims to capture two-dimensional(2-D)images of the Earth’s magnetosheath by using soft X-ray ***,the observed 2-D images are affected by many noise factors,destroying the contained information,which is not conducive to the subsequent reconstruction of the three-dimensional(3-D)structure of the *** analysis of SXI-simulated observation images shows that such damage cannot be evaluated with traditional restoration *** makes it difficult to establish the mapping relationship between SXIsimulated observation images and target images by using mathematical *** propose an image restoration algorithm for SXIsimulated observation images that can recover large-scale structure information on the *** idea is to train a patch estimator by selecting noise–clean patch pairs with the same distribution through the Classification–Expectation Maximization algorithm to achieve the restoration estimation of the SXI-simulated observation image,whose mapping relationship with the target image is established by the patch *** Classification–Expectation Maximization algorithm is used to select multiple patch clusters with the same distribution and then train different patch estimators so as to improve the accuracy of the *** results showed that our image restoration algorithm is superior to other classical image restoration algorithms in the SXI-simulated observation image restoration task,according to the peak signal-to-noise ratio and structural *** restoration results of SXI-simulated observation images are used in the tangent fitting approach and the computed tomography approach toward magnetospheric reconstruction techniques,significantly improving

关键词： Solar wind Magnetosphere Ionosphere link Explorer(SMILE) soft X-ray imager magnetopause image restoration

用于水蒸气重整生物质热解焦油的镍基催化剂的发展(英文)

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催化学报 2012年第4期33卷 583-594页

作者： dalin li Yoshinao NAKAGAWA Keiichi TOMISHIGE Department of Applied Chemistry School of Engineering Tohoku University Sendai 980-8579 Japan National Engineering Research Center of Chemical Fertilizer Catalyst Fuzhou University Fuzhou 350002 Fujian China

Nickel catalysts are effective for the steam reforming of tar derived from biomass pyrolysis,but the improvement is needed in terms of activity,stability,suppression of coke deposition and aggregation,and *** recent development of Ni-based catalysts for the steam reforming of tar is reviewed including the modification with CeO2(or MnO),trace Pt,and *** role of additives such as CeO2,MnO,Pt,and MgO is also discussed.

关键词：化学催化高压高温

Large-scale spatial data visualization method based on augmented reality

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虚拟现实与智能硬件（中英文） 2024年第2期6卷 132-147页

作者： Xiaoning QIAO Wenming XIE Xiaodong PENG Guangyun li dalin li Yingyi GUO Jingyi REN Key Laboratory of Electronics and Information Technology for Space Systems National Space Science CenterChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Ordnance Science and Research Academy of China Beijing 100089China

Background A task assigned to space exploration satellites involves detecting the physical environment within a certain ***,space detection data are complex and *** data are not conducive for researchers'visual perceptions of the evolution and interaction of events in the space *** A time-series dynamic data sampling method for large-scale space was proposed for sample detection data in space and time,and the corresponding relationships between data location features and other attribute features were established.A tone-mapping method based on statistical histogram equalization was proposed and applied to the final attribute feature *** visualization process is optimized for rendering by merging materials,reducing the number of patches,and performing other *** The results of sampling,feature extraction,and uniform visualization of the detection data of complex types,long duration spans,and uneven spatial distributions were *** real-time visualization of large-scale spatial structures using augmented reality devices,particularly low-performance devices,was also *** The proposed visualization system can reconstruct the three-dimensional structure of a large-scale space,express the structure and changes in the spatial environment using augmented reality,and assist in intuitively discovering spatial environmental events and evolutionary rules.

关键词： Large-scale spatial data analysis Visual analysis technology Augmented reality 3D reconstruction Space environment

Analysis of the joint detection capability of the SMILE satellite and EISCAT-3D radar

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Earth and Planetary Physics 2024年第1期8卷 299-306页

作者： JiaoJiao Zhang TianRan Sun XiZheng Yu dalin li Hang li JiaQi Guo ZongHua Ding Tao Chen Jian Wu Chi Wang State Key Laboratory of Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190China Key Laboratory of Solar Activity and Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 101408China Key Laboratory of Electronics and Information Technology for Space Systems Chinese Academy of SciencesBeijing 100190China China Research Institute of Radio-wave Propagation Qingdao 266075China

The Solar wind Magnetosphere Ionosphere link Explorer(SMILE)satellite is a small magnetosphere–ionosphere link explorer developed cooperatively between China and *** pioneers the use of X-ray imaging technology to perform large-scale imaging of the Earth’s magnetosheath and polar cusp *** uses a high-precision ultraviolet imager to image the overall configuration of the aurora and monitor changes in the source of solar wind in real time,using in situ detection instruments to improve human understanding of the relationship between solar activity and changes in the Earth’s magnetic *** SMILE satellite is scheduled to launch in *** European Incoherent Scatter Sciences Association(EISCAT)-3D radar is a new generation of European incoherent scatter radar constructed by EISCAT and is the most advanced ground-based ionospheric experimental device in the high-latitude polar *** has multibeam and multidirectional quasi-real-time three-dimensional(3D)imaging capabilities,continuous monitoring and operation capabilities,and multiple-baseline interferometry *** detection by the SMILE satellite and the EISCAT-3D radar is of great significance for revealing the coupling process of the solar wind–magnetosphere–***,we performed an analysis of the joint detection capability of the SMILE satellite and EISCAT-3D,analyzed the period during which the two can perform joint detection,and defined the key scientific problems that can be solved by joint *** addition,we developed Web-based software to search for and visualize the joint detection period of the SMILE satellite and EISCAT-3D radar,which lays the foundation for subsequent joint detection experiments and scientific research.

关键词： Solar wind Magnetosphere Ionosphere link Explorer(SMILE)satellite European Incoherent Scatter Sciences Association(EISCAT)-3D radar joint detection

Genetic associations with adverse events from anti-tumor necrosis factor therapy in inflammatory bowel disease patients

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World Journal of Gastroenterology 2017年第40期23卷 7265-7273页

作者： Daniel Lew Soon Man Yoon Xiaofei Yan Lori Robbins Talin Haritunians Zhenqiu liu dalin li Dermot PB McGovern Department of Medicine Cedars-Sinai Medical Center F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute Cedars-Sinai Medical Center Department of Gastroenterology Cedars-Sinai Medical Center

AIM To study the type and frequency of adverse events associated with anti-tumor necrosis factor(TNF)therapy and evaluate for any serologic and genetic *** This study was a retrospective review of patients attending the inflammatory bowel disease(IBD) centers at Cedars-Sinai IBD Center from 2005-2016. Adverse events were identified via chart review. IBD serologies were measured by EliSA. DNA samples were genotyped at Cedars-Sinai using Illumina Infinium Immunochipv1 array per manufacturer's protocol. SNPs underwent methodological review and were evaluated using several SNP statistic parameters to ensure optimal allele-calling. Standard and rigorous QC criteria were applied to the genetic data, which was generated using immunochip. Genetic association was assessed by logistic regression after correcting for population *** Altogether we identified 1258 IBD subjects exposed to anti-TNF agents in whom Immunochip data were available. 269/1258 patients(21%) were found to have adverse events to an anti-TNF-α agent that required the therapy to be discontinued. 25% of women compared to 17% of men experienced an adverse event. All adverse events resolved after discontinuing the antiTNF agent. In total: n = 66(5%) infusion reactions; n = 49(4%) allergic/serum sickness reactions; n = 19(1.5%) lupus-like reactions, n = 52(4%) rash, n = 18(1.4%) infections. In Crohn's disease, Ig A ASCA(P = 0.04) and Ig G-ASCA(P = 0.02) levels were also lower in patients with any adverse events, and anti-I2 level in ulcerative colitis was significantly associated with infusion reactions(P = 0.008). The logistic regression/human annotation and network analyses performed on the Immunochip data implicated the following five signaling pathways: JAK-STAT(Janus Kinase-signal transducer and activator of transcription), measles, IBD, cytokine-cytokine receptor interaction, and toxoplasmosis for any adverse event. CONCLUSION Our study shows 1 in 5 IBD patients experience an

关键词： Genetic associations Inflammatory bowel disease Anti-tumor necrosis factor Adverse events

A case-control study about the association between vascular endothelial growth inhibitor gene polymorphisms and breast cancer risk in female patients in Northeast China

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Chinese Journal of Cancer Research 2016年第4期28卷 435-443页

作者： Shaoli Han Lei liu Fengyan Xu Shuang Chen Weiguang Yuan Zhenkun Fu dalin li Dianjun li Departrnent of Immumology College of Bioinformatics Science and Technology Institute of Cancer Prevention and Treatment Harbin Medical UniversityHarbin 150081China Department of Surgery the Third Affiliated Hospital of Harbin Medical UniversityHarbin 150081China

Objective： The inhibition of the neovascularization in tumors is a potential therapeutic target of cancer. Vascular endothelial growth inhibitor （VEGI） is a member of the TNF superfamily which has the ability to suppress the formation of new vessels in tumors. In order to study the association between VEGI gene polymorphisms and breast cancer risk, a case-control study was conducted in Chinese Han women in Northeast China. Methods： Our study involved 708 female breast cancer patients and 685 healthy volunteers. Four SNPs of VEGI gene were analyzed through the polymerase chain reaction-restriction fragment length polymorphism （PCR-RFLP） method. The association between VEGI gene polymorphisms and breast cancer risk was analyzed in our study. The relation between VEGI gene variants and clinical features of breast cancer including lymph node （LN） metastasis, esl^ogen receptor （ER）, progestrogen receptor （PR）, tumor protein 53 （1953）, human epidermal growth factor receptor 2 （Her-2） and triple negative （ER-/PR-/Her-2-） status was analyzed as well. Results： We found that the CT genotype and T allele of rs6478106 were more frequent in patients than in controls. There was also a statistical difference in the distribution of Crs6478106Grs4263839 haplotype between patients and controls. In addition, SNP rs6478106 and rs4979462 were related with the Her-2 status. Conclusions： Our results suggest that VEGI gene variants may be related to the breast cancer risk and the clinical features of breast cancer in Chinese Han women in Northeast China.

关键词： Vascular endothelial growth inhibitor (VEGI) breast cancer single nucleotide polymorphisms (SNPs)

A novel antioxidant agent Astragalosides Prevents shock wave induced renal oxidative injury in rabbits

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A novel antioxidant agent Astragalosides Prevents shock wave...

第十六届全国泌尿外科学术会议

作者： Xiang li,dalin He,linlin Zhang,Xingfa Chen 西安交通大学医学院第一附属医院泌尿外科

PurPose:Extra corPoreal shock wave lithotriPsy (ESWL) induced renal damage can occur as a result of multiPle mechanisms,including small vessel injury and free radicals *** Previous studies have demonstrated

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马克思主义政府职能的理论及其启示

甘肃社会科学 2007年第6期 197-201页

作者：李大林江苏省南京市人事局南京210008

马克思主义关于建设和管理社会主义国家机关及其管理体制的理论,是无产阶级政党管理社会主义国家理论的重要方面。马克思、恩格斯关于未来社会政府职能的设想,关于建设和改革社会主义国家机关的思想,关于"廉价政府"的思想,关于世界全球... 详细信息

马克思主义关于建设和管理社会主义国家机关及其管理体制的理论,是无产阶级政党管理社会主义国家理论的重要方面。马克思、恩格斯关于未来社会政府职能的设想,关于建设和改革社会主义国家机关的思想,关于"廉价政府"的思想,关于世界全球化的思想,对我国行政体制改革和政府职能转变具有重要的启示和指导意义。

关键词：马克思主义政府职能理论启示意义