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Phylogenetic Relationships of Sorghum and Related Species Inferred from Sequence Analysis of the nrDNA ITS Region

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Agricultural Sciences in China 2006年第4期5卷 250-256页

作者： GUO qiong-xia huang Ke-hui YU Yun huang Zhen WU Zhen-quan Fujian Entry-Exit Inspection and Quarantine Bureau Fuzhou 350001 P.R.China Fujian Agriculture and Forestry University Fuzhou 350002 P.R. China

Analysis of phylogenetic and evolution in six species of Sorghum was based on internal transcribed spacer （ITS） sequences in nuclear ribosomal DNA. Results showed that the length of the ITS regions among the six species ranged from 588 to 589 bp and the contents of G＋C in ITS （ITS1 ＋5.8S＋ITS2） regions ranged from 60.27 to 61.05%; the length of ITS1 ranged from 207 to 208 bp and the contents of G ＋ C in the ITS 1 regions ranged from 53.91 to 61.54%. The length of the 5.8S rDNA and ITS2 regions in the six species was 164 and 217 bp respectively, and the contents of G ＋ C ranged from 56.10 to 58.54% in the 5.8S rDNA region and 66.36 to 67,28% in the ITS2 region. Among regions of ITS, ITS1, ITS2, and 5.8S, the best sequence for genetic relationship analysis in the six species was the ITS region. On the basis of the Jaccard coefficient and phylogentic tree, S. sp. was more related to S, propinguum than to other species. This was consistent with the fact that S. sp. is derived from S. propinguum. From the phylogenetic tree based on ITS1, S. halepense, silk sorghum and S. sudanense, are identical in the ITS 1 sequence, whereas the phylogenetic tree based one shows that S. sudanense has a closer genetic association with S. almum rather than with S. halepense and silk sorghum.

关键词： Sorghum ITS phylogenetic relationship

基于轻量化卷积神经网络的桥梁斜拉索PE护套损伤识别方法

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土木与环境工程学报（中英文） 2025年第1期47卷 167-178页

作者：刘啸宇黄永徐峰李惠上海交通大学船舶海洋与建筑工程学院上海200240 哈尔滨工业大学土木工程学院哈尔滨150090

深度神经网络和计算机视觉技术近年来在结构健康监测中发挥了越来越重要的作用。利用无人机航拍采集的桥梁斜拉索损伤图像数据,研究基于深度学习技术的斜拉索PE护套损伤识别方法。为实现在较低运算能力设备上对大跨度桥梁斜拉索表面局... 详细信息

深度神经网络和计算机视觉技术近年来在结构健康监测中发挥了越来越重要的作用。利用无人机航拍采集的桥梁斜拉索损伤图像数据,研究基于深度学习技术的斜拉索PE护套损伤识别方法。为实现在较低运算能力设备上对大跨度桥梁斜拉索表面局部损伤的智能快速识别,解决传统深度卷积神经网络的运算效率相对较低、模型参数规模较大的问题,提出轻量化处理的区域推荐型卷积神经网络模型。介绍区域推荐网络与其轻量化改进方法的理论基础,分析轻量化模型处理的必要性,其能在保证识别精度的前提下降低模型训练与预测的设备性能需求,达到节约计算资源与时间的目的;通过数据增广等多手段解决损伤样本数据量不足的问题,设置对比试验,统计分析结果,验证了轻量化神经网络模型的优越性。结果表明,轻量化网络在牺牲少量识别准确度的前提下,能够在较大程度上实现对模型复杂度与计算量的改进,在工程应用中能有效拓展神经网络的实用性。

关键词：桥梁斜拉索智能损伤识别轻量化神经网络计算机视觉深度学习

Methylprednisolone accelerate chest computed tomography absorption in COVID-19:A three-centered retrospective case control study from China

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World Journal of Clinical Cases 2022年第2期10卷 426-436页

作者： Lan Lin Dan Xue Jin-Hua Chen qiong-Ying Wei Zheng-hui huang Department of Respiratory Medicine Fujian Medical University Union HospitalFuzhou 350001Fujian ProvinceChina Department of Medical Administration Fujian Medical University Union HospitalFuzhou 350001Fujian ProvinceChina

BACKGROUND Based on the results of some large randomized controlled trials(RCTs)confirmed the efficacy of corticosteroids in coronavirus disease 2019(COVID-19),corticosteroids have been included in World Health Organization guidelines,but remain *** To investigate the efcacy and safety of low-to-moderate dose(30 to 40 mg/d)short-term methylprednisolone for COVID-19 *** The clinical data of 70 patients diagnosed with COVID-19 who received antiviral therapy with Arbidol for 7-10 d before admission but had no obvious absorption on chest computed tomography(CT)imaging were retrospectively ***(as the control group)and methylprednisolone(as the corticosteroid group)were given respectively after *** treatment,chest CT was reexamined to evaluate the absorption of pulmonary ***,we evaluated and compared the lymphocyte count,erythrocyte sedimentation rate(ESR),interleukin-6(IL-6),serum ferritin,lactate dehydrogenase(LDH),creatine kinase-MB(CK-MB),hypersensitive C-reactive protein(hs-CRP)and D-dimer levels,and also analyzed the incidence of toxic and side *** All patients in the corticosteroid group had varying degrees of CT absorption,which was significantly better than that in the control group(CT obvious absorption rate:89.47%vs 12.5%,P<0.05).The average daily dose and course of methylprednisolone in the patients with significant improvement on chest CT was(38.55±13.17)mg and(6.44±1.86)d *** the treatment,the lymphocyte count,ESR,IL-6,serum ferritin,LDH,CK-MB,hs-CRP and D-dimer levels all improved gradually,indicating that both Arbidol and methylprednisolone therapy were contributed to improving the condition of COVID-19 *** corticosteroid regimen did not prolong the clearance time of severe acute respiratory syndrome coronavirus *** were no severe adverse reactions such as gastrointestinal bleeding,secondary severe infection,hypertension,diabetic ketoacidosis,ment

关键词： Coronavirus disease 2019 Corticosteroid Methylprednisolone Treatment

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新课改下化学教育的优化与调整

湖北科技学院学报 2025年第1期45卷 116-124页

作者：杨小洁王云婷娄佳蕙黄亚琼湖北科技学院核技术与化学生物学院湖北咸宁437100

新课标为化学教学提供了依据,本研究基于化学教学现状分析,以化学新课程标准为调整教学依据。教师通过创设生活和实验情境,设置探究活动提高学生的兴趣。教师除了用教学方法提高学生兴趣外,还需注重知识之间融合,帮助学生形成知识网络... 详细信息

新课标为化学教学提供了依据,本研究基于化学教学现状分析,以化学新课程标准为调整教学依据。教师通过创设生活和实验情境,设置探究活动提高学生的兴趣。教师除了用教学方法提高学生兴趣外,还需注重知识之间融合,帮助学生形成知识网络。教学既包含教师的教也包含学生的学,因此教师应该帮助学生选择合适的学习策略。教师是学生学习的榜样,教师需要提升个人素养以适应教育事业的发展,教师需要提升创新能力、专业能力并与时俱进。

关键词：新课标化学教学学习策略教学策略优化

Origin of the spatial consistency of summer precipitation variability between the Mongolian Plateau and the mid-latitude East Asian summer monsoon region

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Science China Earth Sciences 2020年第8期63卷 1199-1208页

作者： Jie CHEN Wei huang qiong ZHANG Song FENG Key Laboratory of Western China s Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesLanzhou UniversityLanzhou 730000China Department of Physical Geography and Bolin Centre for Climate Research Stockholm UniversityStockholm 10691Sweden Department of Geosciences University of ArkansasFayetteville 72701USA

The Mongolian Plateau(MP) is located in the eastern part of arid Central Asia(ACA). Climatically, much of the MP is dominated by the westerly circulation and has an arid and semi-arid climate;however, the eastern part of the MP is also influenced by the East Asian summer monsoon(EASM) and has a humid and semi-humid climate. Several studies have shown that precipitation variability in the MP differs from that in western ACA but is consistent with that in the EASM region. Here we use monthly precipitation data for 1979–2016 to characterize and determine the origin of the summer precipitation variability of the MP and the EASM region. The results show that the MP and the mid-latitude EASM region exhibit a consistent pattern of precipitation variability on interannual and decadal timescales;specifically, the consistent regions are the MP and North and Northeast China. We further investigated the physical mechanisms responsible for the consistent interdecadal precipitation variability between the MP and the mid-latitude EASM region, and found that the mid-latitude wave train over Eurasia, with positive(negative) geopotential height anomalies over the North Atlantic and ACA and negative(positive) geopotential height anomalies over Europe and the MP, is the key factor responsible for the consistency of precipitation variability in the MP and the mid-latitude EASM region. The positive anomalies over the North Atlantic and ACA and negative anomalies over Europe and the MP would enhance the transport of westerly and monsoon moisture to the MP and North and Northeast China. They could also strengthen the Northeast Asian low, enhance the EASM, and trigger the anomalous ascending motion over the MP which promotes precipitation in the MP and in the mid-latitude EASM region. Overall, our results help explain the spatial variations of paleo-precipitation/humidity reconstructions in East Asia and clarify the reasons for the consistency of the regional climate.

关键词： Mongolian Plateau Mid-latitude EASM region Summer precipitation Decadal Consistent variability

Enumeration of Cubic Cayley Graphs on Dihedral Groups

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Acta Mathematica Sinica,English Series 2017年第7期33卷 996-1010页

作者： Xue Yi huang qiong Xiang huang Lu LU College of Mathematics and Systems Science Xinjiang UniversityUrumqi 830046P.R.China

Let p be an odd prime, and D2p = （a,b I aP = b2 = l,bab= a 1） the dihedral group of order 2p. In this paper, we completely classify the cubic Cayley graphs on D2p up to isomorphism by means of spectral method. By the way, we show that two cubic Cayley graphs on D2p are isomorphic if and only if they are cospectral. Moreover, we obtain the number of isomorphic classes of cubic Cayley graphs on D2 by using Gauss＇ celebrated law of quadratic reciprocity.

关键词： Cayley graph dihedral group cospectral isomorphic classes quadratic reciprocity

A fully dynamic forward-secure group signature from lattice

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Cybersecurity 2023年第1期6卷 40-53页

作者： Zhijian Liao qiong huang Xinjian Chen College of Mathematics and Informatics South China Agricultural University483 Wushan RoadGuangzhou 510642China Guangzhou Key Laboratory of Intelligent Agriculture 483 Wushan RoadGuangzhou 510642China

A forward-secure group signature(FSGS)ensures the unforgeability of signatures in the past time period despite signing secret key is leaked in the current time *** we know,traditional FSGS schemes are mostly relying on number-theoretic assumptions unable to resist quantum ***,we present an efficient lattice-based fully dynamic(*** can flexibly join or quit the group)forward-secure group signature(DFSGS)by combining an improved version of FSGS scheme proposed by *** on an efficient zero-knowledge argument,we construct argument of knowledge of the committed value and the plaintext that help with privacy *** DFSGS scheme is proved to be anonymous and forward-secure traceable relying on short integer solution and learning with errors assumptions in random oracle ***,the lengths of group public key and signature of our DFSGS scheme have been improved,and the length of user secret key has no connection with the quantity of group members.

关键词： Dynamic group signature Forward-secure Lattice SIS LWE Zero-knowledge argument

Simulation and Experimental Research on Liquid Spreading in a Wire-Sawn Kerf

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Chinese Journal of Mechanical Engineering 2023年第6期36卷 247-260页

作者： Lin Lin hui huang State Key Institute of Manufacturing Engineering Huaqiao UniversityXiamen 361021China

The significance of liquids in abrasive wire sawing has been demonstrated in several ***,the perfor-mance of its spreading behavior is limited by the current development trend,where the wafer has a larger area and the kerf is ***,there are very few studies on the liquid spreading behavior in wire-sawn ***,a 3D CFD(computational fluid dynamics)model is presented in this paper and used to simulate the liquid spreading behavior in a kerf based on a VOF(volume of fluid)method with a CSF(continuum surface force)model,which is used to simulate multiphase flow,and an empirical correlation for characterizing the liquid dynamic contact angle using UDF(user defined functions).Subsequently,parametric simulations are performed on the kerf area,kerf width,liquid viscosity,liquid surface tension,and liquid velocity at the inlet area of the kerf,and verification experi-ments are conducted to determine the validity of the simulation *** the simulation and experimental results,three typical liquid spreading regimes that exhibit different effects on wire sawing in the kerfs are found,and their limiting conditions are identified using non-dimensional ***,a prediction model is pro-posed for the liquid spreading regime based on a set of Weber and Capillary *** wire sawing,an increase in the wafer area does not change the liquid spreading regime in the kerf;however,a reduction in the kerf width sig-nificantly hinders the liquid spreading ***,the spreading regime can be effectively converted to facili-tate wire sawing by adjusting the physical properties and supply conditions of the liquid.

关键词： Spreading regime Kerf CFD Non-dimensional analysis Prediction model

Parallel computing approach for efficient 3-D X-ray-simulated image reconstruction

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Nuclear Science and Techniques 2023年第7期34卷 122-136页

作者： Ou-Yi Li Yang Wang qiong Zhang Yong-hui Li University of Electronic Science and Technology of China Chengdu 610000China National Supercomputing Center in Chengdu Chengdu 610041China

Accurate 3-dimensional(3-D)reconstruction technology for nondestructive testing based on digital radiography(DR)is of great importance for alleviating the drawbacks of the existing computed tomography(CT)-based *** commonly used Monte Carlo simulation method ensures well-performing imaging results for ***,for 3-D reconstruction,it is limited by its high time *** solve this problem,this study proposes a parallel computing method to accelerate Monte Carlo simulation for projection images with a parallel interface and a specific DR *** images are utilized for 3-D reconstruction of the test *** verify the accuracy of parallel computing for DR and evaluate the performance of two parallel computing modes-multithreaded applications(G4-MT)and message-passing interfaces(G4-MPI)-by assessing parallel speedup and *** study explores the scalability of the hybrid G4-MPI and G4-MT *** results show that the two parallel computing modes can significantly reduce the Monte Carlo simulation time because the parallel speedup increment of Monte Carlo simulations can be considered linear growth,and the parallel efficiency is maintained at a high *** hybrid mode has strong scalability,as the overall run time of the 180 simulations using 320 threads is 15.35 h with 10 billion particles emitted,and the parallel speedup can be up to *** 3-D reconstruction of the model is achieved based on the filtered back projection(FBP)algorithm using 180 projection images obtained with the hybrid G4-MPI and *** quality of the reconstructed sliced images is satisfactory because the images can reflect the internal structure of the test *** method is applied to a complex model,and the quality of the reconstructed images is evaluated.

关键词： Parallel computing Monte Carlo Digital radiography 3-D reconstruction