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A hybrid WUDT-NAFnet for simultaneous source data deblending

Petroleum Science 2024年第3期21卷 1649-1659页

作者： Chao-Fan Ke Shao-Huan Zu Jun-xing Cao Xu-Dong Jiang Chao Li xing-ye Liu Key Laboratory of Earth Exploration and Information Technology of Ministry of Education Chengdu University of Technology State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology College of Geophysics Chengdu University of Technology

Simultaneous source technology,which reduces seismic survey time and improves the quality of seismic data by firing more than one source with a narrow time interval,is compromised by the massive blended ***,deblending algorithms have been developed to separate this ***,deep learning(DL)has been proved its great potential in suppressing the *** most popular DL method employs neural network as a filter to attenuate the blended noise in an iterative estimation and subtraction framework(IESF).However,there are still amplitude distortion and blended noise residual problems,especially when dealing with weak signal submerged in strong *** address these problems,we propose a hybrid WUDT-NAFnet,which contains two *** first network is a wavelet based U-shape deblending transformer network(WUDTnet),incorporated into IESF as a robust regularization term to iteratively separate the blended *** second network is a nonlinear activate free network(NAFnet)designed to recover the event amplitude and further suppress the weak noise residual in *** the hybrid network,the blended noise can be separated purposefully and *** using synthetic and field seismic data demonstrate that the WUDTNAFnet outperforms traditional curvelet transform(CT)based method and the deblending transformer(DT)model in terms of ***,for field applications,the data augmentation method of bicubic interpolation is applied to mitigate the feature difference between synthetic and field ***,the trained network exhibits strong signal preservation ability in numerical field example without requiring additional training.

关键词： Simultaneous-source Deblending Deep learning Transformer

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Microstructural evolution,mechanical properties and degradation mechanism of PS-PVD quasi-columnar thermal barrier coatings exposed to glassy CMAS deposits

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Rare Metals 2024年第7期43卷 3329-3340页

作者： Zi-Yue Yu Liang-Liang Wei xing-ye Guo Bao-Peng Zhang Qing He Hong-Bo Guo School of Materials Science and Engineering Beihang UniversityBeijing100191China Key Laboratory of High-Temperature Structure Materials and Protective Coatings(Ministry of Industry and Information Technology) Beihang UniversityBeijing 100191China Surface Engineering Research Institute Chinese Academy of Agricultural Mechanization SciencesBeijing 100083China

Thermal barrier coatings(TBCs) applied in aeroengines tend to be attacked by molten calcia-magnesiaalumino-silicate(CMAS) at high operating ***-stabilized zirconia(YSZ) coatings with quasicolumnar microstructure were fabricated by plasma spray physical vapor deposition(PS-PVD) *** chemic al changes,micros tructural transform ation,mechanical properties and degradation mechanisms of the CM AS-interacted TBCs in the thermal cycling tests were *** YSZ grains were dissolved in the CMAS melts,and then the ZrO_(2) grains were reprecipitated with spherical shape,accompanying with phase transformation from tetragonal(t) to monoclinic(m).The thermal cycling tests reveal that the YSZ coating fails at the early stage due to the attack of *** fractures in intracolumns lead to partial spallation of the *** failure of the coating occurs at the interfaces between thermally grown oxides(TGO) layer and YSZ topcoat;especially,the hardness and Young's modulus of the YSZ coatings increase intensively,as the coatings were infiltrated by the CMAS for a long time.

关键词： CMAS Thermal barrier coatings Young's modulus Thermal cycling behavior PS-PVD

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Two new high-temperature molecular ferroelectrics[1,5-3.2.2-Hdabcn]X(X=ClO_(4)^(-),ReO_(4)^(-))

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Chinese Chemical Letters 2024年第6期35卷 234-238页

作者： Keke Han Wenjun Rao Xiuli You Haina Zhang xing ye Zhenhong Wei Hu Cai School of Chemistry and Chemical Engineering Nanchang UniversityNanchang 330031China Jiangxi Key laboratory of Organic Chemistry Jiangxi Science and Technology Normal UniversityNanchang 330013China

Molecular ferroelectrics have attracted much attention because of their excellent piezoelectricity,mechanical workability,and second harmonic ***,we successfully prepared two molecular ferroelectrics[1,5-3.2.2-Hdabcn]X(X=ClO_(4)^(-),1;ReO_(4)^(-),2)by reactions of a quasi-spherical amine 1,5-diazabicycle[3.2.2]nonane(1.5-3.2.2-dabcn)with HX aqueous *** 1 and 2 undergo hightemperature phase transitions at 381 K(1)and 396 K(2).Before and after the phase transition,they crystallize in the polar point group mm2,and the centrosymmetric point groups mmm and 4/mmm,*** to Aizu rules,these two compounds experience mmm Fmm2 and 4/mmm Fmm2 type ferroelectric phase transitions,*** ferroelectricity of both compounds is well expressed in their polycrystalline film at room temperature with low coercive voltages of 13 V for 1 and 25 V for *** piezoelectric force microscopy(PFM),the 180°anti-parallel ferroelectric domains and the reversible polarization switching can be clearly observed in 1 and *** high-temperature molecular ferroelectric material has great application potential in flexible materials,biomechanics,intelligent wearables and other fields.

关键词： Ferroelectric domains Quasi-spherical amine Phase transition Polarization

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Production of charmonium pentaquarks from b-baryon and B-meson decays:SU(3)analysis

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Chinese Physics C 2024年第5期48卷 107-116页

作者：韩伟毫邢晔徐吉 School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China School of Physics China University of Mining and TechnologyXuzhou 221000China

Here,we study the production of charmonium pentaquarks cc¯qqq from bottom baryon and B-meson decays under the flavor SU(3)*** amplitudes for various processes are parameterized in terms of SU(3)irreducible nonperturbative *** relations between decay widths are ***,the strong decays of pentaquarks are *** results can be tested in future measurements at LHCb,Belle II,and *** decay branching fractions are measured,this study will be useful for the exploration of new decay channels and pentaquark states.

关键词： pentaquark SU(3)symmetry decay

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Pan-cancer analysis of RNA 5-methylcytosine reader (ALYREF)

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Oncology Research 2024年第3期32卷 503-515页

作者： xing ye ZHOUTING TUO KAI CHEN RUICHENG WU JIE WANG QINGXIN YU LUXIA ye AKIRA MIYAMOTO KOO HAN YOO CHI ZHANG WURAN WEI DENGXIONG LI DECHAO FENG Samuel Oschin Comprehensive Cancer Institute Department of MedicineDepartment of Biomedical SciencesCedars-Sinai Medical CenterLos AngelesCA90048USA Department of Urology The Second Afiliated Hospital of Anhui Medical UniversityHefei230601China Department of Urology Institute of UrologyWest China HospitalSichuan UniversityChengdu610041China Department of Pathology Ningbo Diagnostic Pathology Center Ningbo315021China Department of Public Research Platfom Taizhou Hospital of Zhejiang Province Afliated to Wenzhou Medical UniversityLinhai317000China Department of Rehabilitation West Kyushu UniversityKanzaki shi842-8585Japan Department of Urology Kyung Hee UniversitySeoul446701South Korea Department of Rehabilitation The Afliated Hospital of Southwest Medical UniversityLuwzhou646000China

The incre asing interest in RNA modifications has signifcantly advanced epigenomic and epitranscriptomic *** study focuses on the immuno oncological impact of ALYREF in human cancer through a pan-cancer analysis,enhancing understanding of this gene's role in *** observed differential ALYREF expression between tumor and normal samples,correl ating strongly with prognosis in various cancers,particularly kidney renal papillary cell carcinoma(KIRP)and liver hepatocellular carcinoma(LIHC).ALYREF showed a negative correlation with most tumor-infitrating cells in lung squamous cell carcinoma(LUSC)and lymphoid neoplasm difuse large B-cell lymphoma(DLBC),while positive correlations were noted in IIHC,kidney chromophobe(KICH),mesothelioma(MESO),KIRP,pheochromocytoma and paraganglioma(PARD),and glioma(GBMLGG).Aditionally,ALYREF expression was closely associated with tumor heterogeneity,stemness indices,and a high mutation rate in TP53 across these *** conclusion,ALYREF may serve as an oncogenic biomarker in numerous cancers,meriting further research attention.

关键词： Pan-cancer RNA 5-methylcytosine ALYREF Immwno-oncological efects

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Paradoxical herniation associated with hyperbaric oxygen therapy after decompressive craniectomy: A case report

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World Journal of Clinical Cases 2024年第10期12卷 1793-1798页

作者： Zhong-xing ye Xin-Xin Fu Yang-Zong Wu Ling Lin Liang-Qi Xie Yu-Ling Hu Yi Zhou Zhu-Gui You Hai Lin Department of Neurosurgery The Second People's Hospital of Fujian Province(The Second Affiliated Hospital of Fujian University of Traditional Chinese Medicine)Fuzhou 350001Fujian ProvinceChina Department of Neurosurgery The Second Hospital of LongyanLongyan 364000Fujian ProvinceChina Department of Neurosurgery Zhangping City HospitalLongyan 364400Fujian ProvinceChina

BACKGROUND Whether hyperbaric oxygen therapy(HBOT)can cause paradoxical herniation is still *** SUMMARY A 65-year-old patient who was comatose due to brain trauma underwent decompressive craniotomy and gradually regained consciousness after *** was administered 22 d after surgery due to speech *** herniation appeared on the second day after treatment,and the patient’s condition worsened after receiving mannitol treatment at the rehabilitation *** timely skull repair,the paradoxical herniation was resolved,and the patient regained consciousness and had a good recovery as observed at the follow-up *** Paradoxical herniation is rare and may be caused by ***,the underlying mechanism is unknown,and the understanding of this phenomenon is *** use of mannitol may worsen this *** skull repair can treat paradoxical herniation and prevent serious complications.

关键词： Decompressive craniectomy Hyperbaric oxygen therapy Mannitol Paradoxical herniation Case report

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基于分子态构型研究单粲味五夸克态的产生

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物理学报 2024年第13期73卷 93-100页

作者：邢晔李娜杨翎彬胡晓会中国矿业大学材料与物理学院徐州221116

基于有效拉氏量方法,本文研究了自旋宇称为J^(P)=1/2-的单粲味五夸克态的产生.本文根据强子可能的分子态图像,分别以ND_(s)或ND_(s)^(*)不同的分子态构型,讨论了B_(s)介子产生单粲味五夸克态csuud和十重态重子Δ,以及该五夸克态的两体... 详细信息

基于有效拉氏量方法,本文研究了自旋宇称为J^(P)=1/2-的单粲味五夸克态的产生.本文根据强子可能的分子态图像,分别以ND_(s)或ND_(s)^(*)不同的分子态构型,讨论了B_(s)介子产生单粲味五夸克态csuud和十重态重子Δ,以及该五夸克态的两体强衰变过程.通过复合粒子判据,计算出与单粲味五夸克态csuud相关的强耦合常数.借助于强子的有效拉氏量方法,最终得到了单粲味五夸克态的产生分支比.结果表明,在单粲味五夸克态csuud为ND_(s)的构型下,具有Cabibbo允许的产生过程:B_(s)→P_(cs)Δ的分支比可以达到10^(-5)量级,而在ND_(s)^(*)的构型下,该过程的分支比仅为10^(-8)量级.本文的研究结果可以为单粲味五夸克态的实验搜寻和深入研究提供参考,并期望在将来的实验探测诸如LHCb,BelleⅡ,BaBar等B工厂中得到验证.

关键词：单粲味五夸克态分支比有效拉氏量

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从理念到实践:高校创业教育的模式与路径

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湖北开放职业学院学报 2024年第5期37卷 28-30页

作者：叶星常州工程职业技术学院江苏常州1213164

在“大众创业、万众创新”的战略任务下,党和政府对大学生创业教育高度重视。高校创业教育具有培养大学生的创业精神及综合素质的功能,并体现出与专业教育融合、培养应用型人才、培育国际视野人才的基本理念。在高校创业教育的模式选择... 详细信息

在“大众创业、万众创新”的战略任务下,党和政府对大学生创业教育高度重视。高校创业教育具有培养大学生的创业精神及综合素质的功能,并体现出与专业教育融合、培养应用型人才、培育国际视野人才的基本理念。在高校创业教育的模式选择上,结合国外教育发达国家经验和我国实际,我国高校创业教育模式:在制度设计上,促进创业教育与专业教育融合共生在组织机构上,拓展创业教育实践平台;在组织文化上,形成系统性的创业文化;在教育评价上,形成经常性评价机制。

关键词：高校创业教育模式制度设计教育评价

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农机用先导式减压阀建模及故障仿真研究

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机械制造与自动化 2024年第3期53卷 177-180页

作者：叶星新疆农业职业技术学院新疆昌吉831100

阐述农机常用先导式减压阀工作原理,利用AMESim软件建立阀的仿真模型,仿真分析主阀阻尼孔堵塞、主阀阀芯卡滞、先导阀弹簧疲劳等常见故障工况下先导式减压阀工作时的动态特性。仿真结果表明:应用AMESim软件仿真能够真实地模拟先导式减... 详细信息

阐述农机常用先导式减压阀工作原理,利用AMESim软件建立阀的仿真模型,仿真分析主阀阻尼孔堵塞、主阀阀芯卡滞、先导阀弹簧疲劳等常见故障工况下先导式减压阀工作时的动态特性。仿真结果表明:应用AMESim软件仿真能够真实地模拟先导式减压阀实际工作时的各类故障响应,为快速、准确地诊断先导式减压阀及类似液压元件故障提供一种新的方法与依据,大大降低了故障诊断时间,提高了整机工作效率。

关键词： AMESim 先导式减压阀故障分析建模仿真

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基于综合加权评分的后防擦条内板注塑参数多目标优化

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塑料 2024年第1期53卷 172-177页

作者：汪健叶星李兵兵李恒黄可武进技师学院江苏常州213164 江苏联合职业技术学院武进分院江苏常州213164 常州机电职业技术学院江苏常州213164

在Moldflow2019模流分析软件中,对浇口位置进行充分模拟,综合比对后发现,后防擦条内板选择两浇口充填较合适。根据注塑机型号将模具设置为“1模2腔”结构;选用标准热流道,最大限度减少流道凝料,体现绿色设计理念。选取定模水路直径、隔... 详细信息

在Moldflow2019模流分析软件中,对浇口位置进行充分模拟,综合比对后发现,后防擦条内板选择两浇口充填较合适。根据注塑机型号将模具设置为“1模2腔”结构;选用标准热流道,最大限度减少流道凝料,体现绿色设计理念。选取定模水路直径、隔水管直径、熔体温度、注射压力、保压压力、保压时间为研究对象,利用正交试验进行研究,通过综合加权评分对翘曲量及缩痕指数进行加权,得到第15组工艺参数综合评分最高,其值为0.998。当定模水路直径为10 mm、隔水管直径为12 mm、熔体温度为217℃、注射压力为115 MPa、保压压力为85%、保压时间为15 s时,制品的最大翘曲变形量为2.185 mm、总体翘曲率为0.105%~0.210%;缩痕指数为2.823%,与初始参数下的数值相比,减少了48.472%。试验证明了制品成型较好。

关键词：定模水路直径隔水管直径翘曲量缩痕指数 Moldflow2019 正交试验

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