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Symmetry-aware recursive image similarity exploration for materials microscopy

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npj Computational Materials 2021年第1期7卷 1508-1521页

作者： tri N.M.Nguyen Yichen Guo Shuyu q.n Kylie S.Frew Ruijuan Xu Joshua C.Agar Department of Materials Science and Engineering Lehigh UniversityBethlehemPA 18015USA Department of Computer Science and Engineering Lehigh UniversityBethlehemPA 18015USA Department of Mechanical Engineering Lehigh UniversityBethlehemPA 18015USA Department of Applied Physics Stanford UniversityStanfordCA 94305USA

In pursuit of scientific discovery,vast collections of unstructured structural and functional images are acq.ired;however,only an infinitesimally small fraction of this data is rigorously analyzed,with an even smaller fraction ever being *** method to accelerate scientific discovery is to extract more insight from costly scientific experiments already ***,data from scientific experiments tend only to be accessible by the originator who knows the experiments and ***,there are no robust methods to search unstructured databases of images to deduce correlations and ***,we develop a machine learning approach to create image similarity projections to search unstructured image *** improve these projections,we develop and train a model to include symmetry-aware *** an exemplar,we use a set of 25,133 piezoresponse force microscopy images collected on diverse materials systems over five *** demonstrate how this tool can be used for interactive recursive image searching and exploration,highlighting structural similarities at various length *** tool justifies continued investment in federated scientific databases with standardized metadata schemas where the combination of filtering and recursive interactive searching can uncover synthesis-structure-property *** provide a customizable open-source package(https://***/m3-learning/Recursive_Symmetry_Aware_Materials_Microstructure_Explorer)of this interactive tool for researchers to use with their data.

关键词： interactive image similarity

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水平井中油砂流

国外石油地质 1999年第3期21卷 51-53页

作者： doan.,q.陈桂华

目前人们并没有完全了解水平井中流体的水动力学特点，尤其对于多相流而言。水平井的出砂及砂在井底的沉积很难克服，因而会减少流动通道的有效大小。本文研究了水平井中的油砂流，所建的模型把油砂看作单分散的，稀释的悬浮液。

关键词：水平井流体动力学采油井油砂模型

AN INVESTIGATION OF HIGH-TEMPERATURE DEFORMATION STRENGTHENING AND TOUGHENING MECHANISM OF TITANIUM ALLOY

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Acta Metallurgica Sinica(English Letters) 1998年第5期11卷 376-382页

作者： Y.G.Zhou W.D.Zing H.q.Yu Northwestern Polytechnical Univ Xi'an China

The high-temperature deformation strengthening and toughening mechanisms of titanium alloys have been investigated in this paper. The materials processed by this method produce a new tri-modal microstrvcture, which consists of 10-20% eq.iaxed alpha, streaky alpha and transformed beta matrix. It is found that the higher ductility of tri-modal microstructure is attributed to the eq.iaxed alpha's coopemtive slip and coordinated deformation with the transformed beta matrix. The streaky alpha phases not only increase the strength and creep properties, but also increase the fracture toughness. Propagating along grain boundaries between two neighboring streaky alpha phases, cracks in tri-modal microstructure make a more tortuous way, and then the materials show a higher fracture toughness. This new method is applicable to α, near α,α+β and near β titanium alloys.

关键词： titanium alloy high-temperature deformation strengthening and toughening mechanism

Neurofibromatosis type 2 gene mutation and progesterone receptor messenger RNA expression in the pathogenesis of sporadic orbitocranial meningioma

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International Journal of Ophthalmology(English edition) 2019年第4期12卷 571-576页

作者： Agus Supartoto Indra tri Mahayana Didik Setyo Heriyanto Muhammad Bayu Sasongko Henricus Datu Respatika Dhimas Hari Sakti Prima Sugesty Nurlaila Hari Kusnanto Suhardjo Pawiroranu Sofia Mubarika Haryana Department of Ophthalmology Faculty of Medicine Public Health and Nursing Universitas Gadjah Mada-Dr.Sardjito General Hospital Department of Pathological Anatomy Faculty of Medicine Public Health and Nursing Universitas Gadjah Mada Department of Biostatistics Epidemiology and Population Health Faculty of Medicine Public Health and NursingUniversitas Gadjah Mada Department of Histology and Cell Biology Faculty of Medicine Public Health and Nursing Universitas Gadjah Mada

AIM: To investigate neurofibromatosis type 2(NF2) gene mutation at mRNA levels in sporadic orbitocranial meningioma and its association with progesterone receptor(PR) mR NA ***: This was a case-control study. Thirty-four sporadic meningioma patients with no familial NF2-related meningioma history were recruited. They were interviewed for their obstetric, gynecologic, and contraception history. PR investigation was performed with real-time polymerase chain reaction(PCR). NF2 mutation was investigated using q.iomarker Somatic Mutation PCR Assay at NF2 mRNA level after its cDNA extraction(four mRNA mutation cytoband coordinates for nucleotide change: c.634 C>T/p.q.12, c.655 G>A/p.V219 M, c.784 C>T/p.R262 and c.1228 C>T/p. q.10). RESULTS: After mutation analysis at mRNA level, NF2 gene mutation was found in 35.29% patients. Non-mutation group was strongly associated with exogenous hormonal exposure(non-mutation vs mutation: 95.5% vs 83.3%, P<0.001). PR mR NA was found significantly lower in nonmutation group(P=0.033) which presumed as long term exogenous progesterone exposure. However, mutation group was associated with higher rate of progression to gradeⅡ(mutation vs non-mutation, 18.2% vs 5%, P<0.001) and was associated more in fibrous and anaplastic tumor ***: NF2 mutation-meningioma is associated with higher grade of meningioma. Non NF2 mutationmeningioma is strongly associated with exogenous progesterone exposure and lower PR expression.

关键词： orbitocranial meningioma neurofibromatosis type 2 progesterone receptor hormonal contraception real time PCR

Dynamic Impact of High-Density Aluminum Foam

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Acta Mechanica Solida Sinica 2022年第2期35卷 198-214页

作者： q.Peng J.Xie H.S.Ma X.Ling X.Liu Y.G.Wei LNM Institute of MechanicsChinese Academy of SciencesBeijing 100190China School of Engineering Science University of Chinese Academy of SciencesBeijing 100049China School of Engineering and Technology China University of GeosciencesBeijing 100083China College of Engineering Peking UniversityBeijing 100871China

High-density aluminum foam can provide higher stiffness and absorb more energy during the impact Obtaining the constitutive law of such foam req.ires tri-axial tests with very high pressure,where difficulty may arise because the hydrostatic pressure can reach more than 30 *** this paper,instead of using tri-axial tests,we proposed three easier tests-tension,compression and shear to obtain the parameters of constitutive model(the Deshpande-Fleck model).To verify the constitutive model both statically and dynamically,we carried out addi-tional triaxial tests and direct impact tests,*** on the derived model,we performed finite element simulation to study the impact response of the present *** dimensional analysis,we proposed an empirical eq.ation for a non-dimensional impact time the impact time divided by the time req.ired for plastic wave travelling from the impact surface to the bottom surface,to det ermine the deformation charac teristic of the aluminum foam after *** the case with t_(d)≤1,the deformation tends to exhibit a shock-type characteristic,while for the case with t_(d)>5,the deformation tends to exhibit an upsetting-type characteristic.

关键词： High density aluminum Foam Deshpande-Fleck model Finite element method Impact analysis Plastic wave

Identification and confirmation of novel q.Ls for aluminum tolerance conferring tissue tolerance mechanism in soybean

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Identification and confirmation of novel QTLs for aluminum t...

Hepatitis B virus pre-S2 start codon mutations in Indonesian liver disease patients

江苏省遗传学会2019年学术研讨会

作者：李阳 Heng Ye tri Vuong 李艳 Henry T.Nguyen National Key Laboratory of Crop Genetics and Germplasm Enhancement National Center for Soybean Improvement Nanjing Agricultural University Division of Plant Sciences University of Missouri

Aluminum(Al) toxicity is a major abiotic stress limiting crop yield in acidic soil. Al toxicity inhibits plant root growth and development, leading to insufficient uptake of water and nutrient from soil. Soybean is sensitive to Al toxicity, exhibiting impaired root growth under elevated Al concentrations. In this research, two soybean lines(Magellan and PI 567731) were identified to differ in Al tolerance represented by primary root length ratio(PRLatio), total root length ratio(TRLatio), and root tip number ratio(RTNatio) under 25 μM Al3+. The recombinant inbred line(RIL) population derived from the cross of these two lines exhibited high inheritance(0.65 to 0.85) in Al tolerance-related traits. The q.antitative trait loci(q.L) mapping identified three q.L on chromosome(Chr.) 3, 13 and 20 associated with Al tolerancerelated traits. q.lm20 explained the largest phenotypic variation of ～ 27.4% and mainly played roles in maintaining root elongation. q.lm03 and q.Alm13 were mapped as novel Al tolerance loci and predicted to be mainly involved in maintaining root tip initiation or root elongation under Al stress, respectively. Furthermore, the two major q.L(q.lm13 and q.Lm20) were confirmed using nearisogenic lines(NILs), and they seemed to regulate Al tolerance in tissue tolerance pathway instead of Al3+ exclusion or transport. The tolerant allele of q.Lm20 was identified as a rare allele, which has not been widely utilized in soybean breeding. Our results not only provided novel genetic resources for breeding Al tolerant soybean varieties, but also confirmed Al tolerance q.L in the NIL background and proposed the possible mechanisms underlying them.

关键词： Aluminum tolerance Near-isogenic lines q.L mapping Root length Soybean

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World Journal of Gastroenterology 2012年第38期18卷 5418-5426页

作者： Andi Utama Marlinang Diarta Siburian Ismail Fanany Mariana Destila Bayu Intan Rama Dhenni tri Shinta Kurniasih Syafruddin AR Lelosutan Wenny Astuti Achwan Nasrul Zubir Arnelis Benyamin Lukito Irawan Yusuf Laurentius Adrianus Lesmana Ali Sulaiman Molecular Epidemiology Division Mochtar Riady Institute for Nanotechnology Universitas Pelita Harapan Lippo Karawaci Tangerang 15810 Banten Indonesia Gastroentero-Hepatology Division Department of Internal Medicine Gatot Soebroto Hospital Jakarta 10410 Indonesia Department of Internal Medicine Mataram General Hospital Mataram 83127 Indonesia Gastroentero-Hepatology Division Department of Internal Medicine M. Djamil Hospital Padang 25127 Indonesia Department of Internal Medicine Siloam Hospital Lippo Karawaci Tangerang 15810 Banten Indonesia Faculty of Medicine Hasanuddin University Makassar 90245 Indonesia Hepatology Division Department of Internal Medicine Faculty of Medicine University of Indonesia Jakarta 10430 Indonesia

AIM: To identify the prevalence of pre-S2 start codon mutations and to assess their association with liver disease progression. METHODS: The mutations were identified by direct seq.encing from 73 asymptomatic carriers, 66 chronic hepatitis (CH), 66 liver cirrhosis (LC) and 63 hepatocellular carcinoma (HCC) patients. Statistical significances were determined using Fisher's exact test, χ 2 test, and t -test analyses whenever appropriate. Pre-S mutation as a risk factor for advanced liver disease was estimated by unconditional logistic regression model adjusted with age, sex, and hepatitis B e antigen (HBeAg). P q.32, and A138, were also associated with LC and HCC, although this was not statistically significant when adjusted for age, sex, and HBeAg. The prevalence of pre-S2 start codon mutation was higher in HBV/B than in HBV/C (23.0% vs 19.1%), whilst the prevalence of T130, q.32, and A138 mutation was higher in HBV/C than in HBV/B. The prevalence of pre-S2 start codon mutation was higher in LC (38.9%) and HCC (40.0%) than CH (5.6%) in HBeAg(+) group, but it was similar between CH, LC and HCC in HBeAg(-) group. CONCLUSION: Pre-S2 start codon mutation was higher in Indonesian patients compared to other Asian countries, and its prevalence was associated with advanced liver disease, particularly in HBeAg(+) patients.

关键词： Hepatitis B virus Pre-S2 start codon Liver disease Hepatitis B e antigen seroconversion Indonesia

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辽三彩的光大与新生

今日辽宁 2016年第1期 60-65页

作者：吴限 G.q.

林声,1931年1月生于山东蓬莱。曾任辽宁副省长、省政协常务副主席。现为中国作家协会会员、中华诗词学会会员、中央文史馆书画院院部委员、东北大学兼职教授、沈阳大学名誉教授、辽宁省文史馆馆员、名誉馆长。著有《灯下情思》《灯花吟... 详细信息

林声,1931年1月生于山东蓬莱。曾任辽宁副省长、省政协常务副主席。现为中国作家协会会员、中华诗词学会会员、中央文史馆书画院院部委员、东北大学兼职教授、沈阳大学名誉教授、辽宁省文史馆馆员、名誉馆长。著有《灯下情思》《灯花吟草》《林声散文》《林声国画精品选》《林声诗书画集》《林声自题画诗》《林声玩陶集》《散穗夕拾》以及教育、科技专著11部。主编《中华名匾》《中华百年历史名碑》等13部大型图书。曾参加中央文史馆组织的六次全国书画展;全国政协50周年书画展;中、日、韩第十二次,第十三次书画展;辽宁神奈川（日本）名家画展和上海世博会书画展。

关键词：新生中华诗词协会会员名誉教授全国政协 1931年书画展上海世博会

竖直平板嵌入非Darcy多孔介质时,数值研究流过平板的不稳定MHD自然对流中的Dufour和Soret效应

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应用数学和力学 2012年第2期33卷 195-209页

作者： M·q.艾欧德特 A·艾格汗迪黄雅意(译) 张禄坤(校) 乌姆艾尔古拉大学工程学院机械工程系麦加沙特阿拉伯艾尔拜勒加应用大学艾尔胡森学院机械工程系伊尔比德约旦不详

就竖直平板嵌入非Darcy多孔介质中,导电流体流过平板时作不稳定的二维磁流体(MHD)双扩散对流,数值研究了Dufour和Soret效应对流动的影响.用Crank-Nicolson型的隐式有限差分法,按三对角矩阵处理,求解无量纲的非线性控制方程.详细地研究... 详细信息

就竖直平板嵌入非Darcy多孔介质中,导电流体流过平板时作不稳定的二维磁流体(MHD)双扩散对流,数值研究了Dufour和Soret效应对流动的影响.用Crank-Nicolson型的隐式有限差分法,按三对角矩阵处理,求解无量纲的非线性控制方程.详细地研究了问题中出现的各种参数对不稳定无量纲的速度、温度和浓度曲线的影响.进一步地,给出并分析了表面摩擦因数、Nus-selt数和Sherwood数随时间的变化.研究结果表明,不稳定速度、温度和浓度分布曲线,受Dufour和Soret的影响十分显著.随着Dufour数的增加或者Soret数的减小,表面摩擦因数和Sherwood数都在减小,而Nusselt数在增加.研究发现,当磁场参数增加时,边界层中的速度和温度在减小.

关键词：瞬时自由双扩散非Darcy模型 MHD 多孔介质 Dufour效应 Soret效应数值解