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World Journal of Pediatrics 2021年第4期17卷 335-340页

作者： qing-You Zhang Bo-Wen Xu Jun-bao Du Department of Pediatrics Peking University First HospitalXi-An Men Street No.1West DistrictBeijing100034China

Background Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection has been spreading rapidly around the world,while“multisystem inflammatory syndrome in children”(MIS-C)is a new type of syndrome that has now been reported in many *** and different characteristics between KD and MIS-C have been reported in a variety of *** aimed to focus on reviewing clinical presentations,diagnosis,and treatment of KD and *** We searched articles in the electronic databases,including the Cochrane Library database,EMBASE,and MEDLINE with the keywords“multiple inflammatory syndrome”and/or“COVID-19”and/or“Kawasaki disease”and“children”.Results Main presentations of MIS-C and KD include fever,rashes,mucous membrane involvement,conjunctivitis,hands and feet erythema/edema,and cervical ***,compared with the highest incidence of KD among some Asian countries,MIS-C is common among Black and Hispanic ***-C is common in older children and teenagers,whereas classic KD is common in children under five years of *** symptoms,shock,and coagulopathy are common in MIS-C patients but are not common in classic *** manifestations are more common than KD,including myocarditis with cardiac dysfunction and coronary artery dilation or *** cases in MIS-C present with vasodilated or cardiogenic shock that requires fluid resuscitation,muscular support,and even mechanical ventilation and extracorporeal membrane oxygenation(ECMO),whereas KD rarely presents with these manifestations and requires these *** serum ferritin,leukopenia,lymphopenia and thrombocytopenia are common in ***,thrombocytosis is a characteristic feature of *** immunoglobulin(IVIG)and moderate-high dose aspirin are still a standard recommended treatment for *** addition to the above-mentioned medications,steroids and biological drugs are frequently used in patients with *** of the chil

关键词： Kawasaki disease Multisystem inflammatory syndrome Children

Neutrophil-to-lymphocyte ratio or platelet-to-lymphocyte ratio is a predictive factor of pancreatic cancer patients with type 2 diabetes

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Hepatobiliary & Pancreatic Diseases International 2022年第2期21卷 202-204页

作者： bao dong Rong-Rong Wu The First Affiliated Hospital of USTC Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230031China

To the Editor:Pancreatic cancer (PC) is one of the most deadly cancers due to the difficulty of its early *** patients have developed an unresectable PC when diagnosed [1].According to GLOBOCAN2018 estimates,PC ranked the 11th most common cancer in the world counting 458 918 new cases and causing 432 242 deaths(4.5%of all deaths caused by cancer) in 2018 [2].

关键词： patients cancer diabetes

A novel mechanism fusion data control method for slab camber in hot rolling

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Journal of Iron and Steel Research International 2023年第5期30卷 960-970页

作者： Le-bao Song dong Xu Peng-fei Liu Jin-hang Zhou Hui-qing Yan Jing-dong Li Hai-nan He Hai-jun Yu Xiao-chen Wang Quan Yang National Engineering Technology Research Center of Flat Rolling Equipment University of Science and Technology BeijingBeijing 100083China Xinjiang Joinworld Co. Ltd.Urumqi 830000XinjiangChina 2250 Hot Strip Mill Hunan Lianyuan Iron and Steel Co.Ltd.Loudi 417000HunanChina

For asymmetric plate shape,control over the hot rolling process mainly depends on the subjective judgement and personal experience of the operator as there are great deviations and much instability in hot ***,the intrinsic mechanisms and sensitivity affecting characteristic parameters and variables in the asymmetric rolling process remain ***,a novel mechanism fusion data control method for slab camber in hot rolling using dimensional analysis and data-driven technique was *** approach of dimensional analysis was used to establish a mathematical model and analyse the main parameters affecting the slab camber of the rough ***,the established mathematical model combined with the data-driven techniques was employed to accurately predict the slab bending ***,the superiority and effectiveness of the proposed model were demonstrated by a comparison with three regression ***,the proposed control strategy was successfully applied in a 1580 mm hot rolling industrial *** automatic control results show that the hit rate of slab cambers in different sizes from 10 to 30 mm is improved,and the quality stability of intermediate slab is significantly improved.

关键词： Mechanism model Dimensional analysis Data-driven technique Camber control Hot rolling

Comparative Analysis of Population Genetic Structure in Bemisia tabaci(Gennadius) Biotypes B and Q Based on ISSR Marker

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Agricultural Sciences in China 2008年第11期7卷 1348-1354页

作者： CHU dong WAN Fang-hao XU bao-yun WU qing-jun ZHANG You-jun High-Tech Research Center Shandong Academy of Agricultural Sciences Jinan 250100 P.R.China Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing 100081 P.R. China The State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Scienees Beijing 100081 P.R. China

Bemisia tabaci （Gennadius） biotypes B and Q are two invasive biotypes in the species complex. The comparison of the population genetic structure of the two biotypes is of significance to show their invasive mechanism and to their control. The intersimple sequence repeats （ISSR） marker was used to analyze the 16 B-biotype populations and 4 Q-biotype populations worldwide with a Trialeurodes vaporariorum population in Shanxi Province, China, and a B. tabaci non-B/Qbiotype population in Zhejiang Province, China, was used as control populations. The analysis of genetic diversity showed that the diversity indexes of biotype Q including Nei＇s gene diversity index, Shannon informative index, and the percentage of polymorphic loci were higher than those of biotype B. The high genetic diversity of biotype Q might provide the genetic basis for the excellent ecological adaptation. Cluster analysis suggested that the ISSR could not be used in the phylogenetic analysis though it could easily distinguish the biotypes of B. tabaci. The difference of the population genetic structure between the biotype B and the biotype Q exists based on the ISSR marker. Meanwhile, the results suggested that the molecular marker has its limitation in the phylogenetic analysis among the biotypes of B. tabaci.

关键词： invasive mechanism Bemisia tabaci biotype B Bemisia tabaci biotype Q genetic structure ISSR

Cellulose Solubility in Deep Eutectic Solvents:Inspecting Quantitative Hydrogen-Bonding Analysis

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Chinese Journal of Polymer Science 2023年第1期41卷 75-83页

作者： Kuang-Jie Xu bao-qing Zhang Xin Qiao Chen-Yang Liu CAS Key Laboratory of Engineering Plastics Beijing National Laboratory for Molecular SciencesInstitute of Chemistrythe Chinese Academy of SciencesBeijing100190China University of Chinese Academy of Sciences Beijing100049China

According to the Kamlet-Abraham-Taft(KAT)polarity parameters(α,β,π*),polymers and solvents can be categorized as hydrogen-bond(H-bond)acidic(α>β)or H-bond basic(α<β).Recently,we proposed a quantitative hydrogen bonding(QHB)analysis to predict the solubility of polymers in ionic liquids(ILs)using the product ofΔαΔβ<0 as an indicator,whereΔαis the difference between the H-bond acidic parameters of the polymer and IL,andΔβis the difference in their basicity,while the prerequisite of the“complementary”principle(i.e.,that one component is H-bond acidic and the other is basic)is ***,the applicability of QHB analysis was first confirmed by testing the solubilities of carefully chosen polymer/deep eutectic solvent(DES)pairs,as the DESs were eutectic mixtures dominated by hydrogen bonding ***,our attention focused on the solubility of cellulose in *** testing results as well as the typical published results were summarized,which indicate that the potential DESs for cellulose dissolution and regeneration must be of the H-bond basic type because the“complementary”principle should be satisfied as a ***,the H-bond basic DESs investigated in this study do not show the superior solubility of cellulose that has been commonly observed for H-bond basic ILs,even if the criterion ofΔαΔβ<0 is satisfied for both DESs and *** reasons for this discrepancy are given to understand the varying effectiveness in cellulose dissolution for H-bond basic DESs and ILs.

关键词： Deep eutectic solvent Cellulose dissolution Empirical polarity parameters Hydrogen bonding interaction

Transition State Theory Rate in Nonlinear Environment： the Under-damping Case

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Communications in Theoretical Physics 2005年第4X期44卷 752-756页

作者： ZHAO Jiang-Lin bao Jing-dong Physics Department Beijing Normal University Beijing 100875 China

We investigate the escape behavior of systems governed by the one-dimensional nonlinear Kramers＇ equation δW/δt = -vδW/δx ＋（f＇（x）/m）（δW/δv）＋ γδ（vW）/δv ＋（γκBT/m）（δ2W^μ/δv^2）, where f（x） is a metastable potential and μ an anomalous exponent. We obtain an expression for the transition state theory escape rate, whose predictions are in good agreement with numerical simulations. The results exhibit the anomalies due to the nonlinearity in W that the TST rate grows with T and drops as μbecomes large at a fixed T. Indeed, particles in the subdiffusive media （μ 〉 1） can escape over the barrier only when T is above a critical value, while there does not exist this confinement in the superdiffusive media （μ 〈 1）.

关键词： Kramers' escape rate nonlinear Fokker-Planck equation anomalous diffusion

Design and performance evaluation of a large field-of-view dual-particle time-encoded imager based on a depth-of-interaction detector

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Nuclear Science and Techniques 2024年第4期35卷 1-14页

作者： dong Zhao Xu-Wen Liang Ping-Kun Cai Wei Cheng Wen-bao Jia Da-Qian Hei qing Shan Yong-Sheng Ling Chao Shi Department of Nuclear Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 211106China Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions Suzhou 215000China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China

Time-encoded imaging is useful for identifying potential special nuclear materials and other radioactive sources at a *** this study,a large field-of-view time-encoded imager was developed for gamma-ray and neutron source hotspot imaging based on a depth-of-interaction(DOI)*** imager primarily consists of a DOI detector system and a rotary dual-layer cylindrical coded *** EJ276 plastic scintillator coupled with two SiPMs was designed as the DOI detector to increase the field of view and improve the imager *** difference in signal time at both ends and the log of the signal amplitude ratio were used to calculate the interaction position *** position resolution of the DOI detector was calibrated using a collimated Cs-137 source,and the full width at half maximum of the reconstruction position of the Gaussian fitting curve was approximately 4.4 *** DOI detector can be arbitrarily divided into several units to independently reconstruct the source distribution *** unit length was optimized via Am-Be source-location experiments.A multidetector filtering method is proposed for image *** method can effectively reduce image noise caused by poor DOI detector position *** vertical field of view of the imager was(-55°,55°)when the detector was placed in the center of the coded mask.A DT neutron source at 20 m standoff could be located within 2400 s with an angular resolution of 3.5°.

关键词： Time-encoded imager Depth-of-interaction detector Dual-particle imaging Hotspot imaging

A Note on Strong Edge Coloring of Sparse Graphs

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Acta Mathematica Sinica,English Series 2019年第4期35卷 577-582页

作者： Wei dong Rui LI bao Gang XU School of Information and Engineering Nanjing Xiaozhuang University Department of Mathematics College of Science Hohai University School of Mathematical Sciences Nanjing Normal University

A strong edge coloring of a graph is a proper edge coloring where the edges at distance at most 2 receive distinct colors. The strong chromatic index χ'_s(G) of a graph G is the minimum number of colors used in a strong edge coloring of G. In an ordering Q of the vertices of G, the back degree of a vertex x of G in Q is the number of vertices adjacent to x, each of which has smaller index than x in Q. Let G be a graph of maximum degree Δ and maximum average degree at most 2 k. Yang and Zhu [J. Graph Theory, 83, 334–339(2016)] presented an algorithm that produces an ordering of the edges of G in which each edge has back degree at most 4 kΔ-2 k in the square of the line graph of G, implying that χ'_s(G) ≤ 4 kΔ-2 k + 1. In this note, we improve the algorithm of Yang and Zhu by introducing a new procedure dealing with local structures. Our algorithm generates an ordering of the edges of G in which each edge has back degree at most(4 k-1)Δ-2 k in the square of the line graph of G, implying that χ'_s(G) ≤(4 k-1)Δ-2 k + 1.

关键词： Strong edge coloring maximum average degree sparse graph

Kinetic Characteristics Analysis of Aircraft During Heavy Cargo Airdrop

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International Journal of Automation and computing 2014年第3期11卷 313-319页

作者： Jie Chen Cun-bao Ma dong Song School of Aeronautics Northwestern Polytechnical University

Airdrop is the most important approach for crisis transaction and unexpected events, it is necessary to investigate the flight characteristics of transport aircraft during the dropping process. This paper mainly focuses on the stability, controllability and model simplification of large aircraft with heavy cargo airdrop. In this process, the primary elements which have impact on force and moment are studied theoretically, the role of cargo mass, moving parameters and other factors on dynamical characteristics have been assessed by simulation and analysis. And then the aircraft model simplification is completed for control system designing in *** the work above shows that the parameters of cargo moving play a dominant role in flight characteristics and the flight equations can be simplified to reduce the design complexity.

关键词： Modeling simulation control of aircraft kinematics and dynamics of machines model reduction