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Dental caries and first permanent molar pit and fissure morphology in 7-to 8-year-old children in Wuhan,China

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International Journal of Oral Science 2012年第3期4卷 157-160页

作者： jin-dong wang Xi Chen Jo Frencken Min-Quan Du Zhi Chen Key Laboratory for Oral Biomedicine of Ministry of Education School and Hospital of StomatologyWuhan UniversityWuhanChina Shenzhen Maternal and Children's Hospital ShenzhenChina Department of Global Oral Health Radboud University Nijmegen Medical CentreCollege of Dental SciencesNijmegenThe Netherlands

To obtain the caries experience and, plaque accumulation severity and pit and fissure morphology in first permanent molars in 7-8 children in Wuhan, as a reasonable prediction of caries risk and preventive attention in the future, a convenient sample of five primary schools in the vicinity of the Wuhan University School and Hospital of Stomatology was drawn. Two calibrated examiners orally examined all present grade 2 children in the classroom, using standard caries plaque and tooth morphology criteria. Dental caries was scored at enamel （D2） and dentine （D3） for tooth and surface level. Independent variables were age, gender and school. Data analysis used analysis of variance and t-test. The sample comprised 1 043 7- and 8-year-olds. The prevalence of dental caries in permanent dentition was 8.7% and in primary dentition, 68.7%. Mean Decayed, Missing, Filled Teeth/S （DMFT/S） scores were 0.1 1 and . 14, respectively. Mean dmft/s scores were 2.8 and 5.0. The d-component constituted 75% of the d3mft index, while enamel carious lesions constituted 36% of the total number of carious lesions （d2,3-component）. Prevalence of medium and deep pits and fissures was 84.6%. Prevalence of medium and severe plaque accumulation was 67.4%. Prevalence of dental caries in the deciduous and permanent dentitions of 7- to 8-year-old children was high. Deed oits and fissures in high caries risk children should be sealed_

关键词： dental caries oral epidemiology plaque tooth morphology

Research on Flange Spread of H-Beamon Universal Mill

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Journal of Iron and Steel Research International 2006年第1期13卷 27-30,39页

作者： XU Xu-dong BAI jin-lan wang Bing-xin LIU Xiang-hua WU Di State Key Laboratory of Rolling and Automation Northeastern University Shenyang 110004 Liaoning China

The deformation process of H-beams was simulated by explicit dynamic FEM, and the influence of deformation parameters on the spread of rolling piece was obtained. The results show that the flange width, elongation ratio between flange and web and flange thickness are the maior influencing factors on the spread of rolling piece, and the inclination and diameter of vertical roll together with web inner width can also influence to some extent on the spread of rolling piece.

关键词： H-beam FEM spread

The diagnostic value of tenascin-C in acute aortic syndrome

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Journal of Geriatric Cardiology 2024年第3期21卷 359-368页

作者： Ming MA Wei CHEN Hai-Long CAO Jun PAN Qing ZHOU Xin-Long TANG dong-jin wang Department of Thoracic and Cardiovascular Surgery Nanjing Drum Tower Hospital Clinical College of Nanjing Medical UniversityNanjingChina Department of Thoracic and Cardiovascular Surgery Nanjing Drum Tower HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjingChina Department of Thoracic surgery Kunshan Hospital of Traditional Chinese MedicineJiangsuChina

OBJECTIVES Misdiagnosis of acute aortic syndrome(AAS)significantly increases ***-C(TN-C)is an extracellular matrix glycoprotein related to cardiovascular *** elevation of TN-C in AAS and whether it can discriminate suddenonset of acute chest pain in Chinese remains *** We measured the plasma concentration of TN-C by ELISA in a cohort of 376 patients with chest or back *** to discriminate AAS from acute coronary syndrome(ACS)were compared and *** From October 2016 to September 2021,376 undiagnosed patients with chest or back pain were enrolled.166 of them were finally diagnosed as AAS,100 were ACS and 110 without cardiovascular diseases(NCV).TN-C was significantly elevated in AAS at 18.18 ng/mL(IQR:13.10–27.68)compared with 7.51 ng/mL(IQR:5.67–11.38)in ACS(P<0.001)and 3.68 ng/mL(IQR:2.50–5.29)in NCV(P<0.001).There was no significant difference in TN-C level among the subtypes of *** the 166 AAS patients,the peaked level of TN-C was at acute stage(P=0.012),then a slight of decrease was observed at subacute *** area under receiver operating characteristic curve for AAS patients versus NCV was 0.979(95%CI:0.964-0.994)for *** a cutoff level of 11.474 ng/mL,TN-C has a sensitivity of 76.0%,specificity of 85.5%,accuracy of 82.0%,positive predictive value(PPV)of 76.0%,negative predictive value(NPV)of 85.5%.Diagnostic performance of TN-C was superior to D-dimer and *** The concentration of serum TN-C in AAS patients was significantly higher than that in ACS patients and ***-C could be a new biomarker to distinguish AAS patients in the early stage after symptoms onset from other pain diseases.

关键词： acute cardiovascular elevated

Nonreciprocal coupling induced entanglement enhancement in a double-cavity optomechanical system

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Chinese Physics B 2022年第9期31卷 301-306页

作者： Yuan-Yuan Liu Zhi-Ming Zhang Jun-Hao Liu jin-dong wang Ya-Fei Yu Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices(School of Information and Optoelectronic Science and Engineering) South China Normal UniversityGuangzhou 510006China Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials South China Normal UniversityGuangzhou 510006China

We investigate the quantum entanglement in a double-cavity optomechanical system consisting of an optomechanical cavity and an auxiliary cavity,where the optomechanical cavity mode couples with the mechanical mode via radiation-pressure interaction,and simultaneously couples with the auxiliary cavity mode via nonreciprocal *** study the entanglement between the mechanical oscillator and the cavity modes when the two cavities are reciprocally or non-reciprocally *** logarithmic negativity E_(n)^((1))(E_(n)^((2)))is adopted to describe the entanglement degree between the mechanical mode and the optomechanical cavity mode(the auxiliary cavity mode).We find that both E_(n)^((1))and E_(n)^((2))have maximum values in the case of reciprocal *** using nonreciprocal coupling,E_(n)^((1))and E_(n)^((2))can exceed those maximum values,and a wider detuning region where the entanglement exists can be ***,the entanglement robustness with respect to the environment temperature is also effectively enhanced.

关键词： quantum entanglement double-cavity optomechanical system nonreciprocal coupling

CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： jin-Peng wang Guo-Cui Mao Hui-Lin Jiang Bao-Xia dong Yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCO3to generate medium basic sites （OH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that CO2activation occurs at the hydroxyl group （OH） on the CaH2-modified Ni-carbonate surface,leading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catalysts proceeds via the formate pathway.

关键词： Metal hydride Ni catalysts Carbonate Metal-carbonate interface

“卓越计划”视域下高校图书馆信息服务创新研究

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图书馆论坛 2013年第3期33卷 141-144页

作者：靳东旺南阳理工学院图书馆河南南阳473004

在"卓越计划"下,工程教育教学改革的形势引起高校图书馆信息服务改变。文章在分析"卓越计划"对高校图书馆信息服务影响基础上,提出以完善学科馆员制度和一线服务品牌、创建"卓越计划"的一站式服务和学科导航服务体系、加强针对"卓越计划... 详细信息

在"卓越计划"下,工程教育教学改革的形势引起高校图书馆信息服务改变。文章在分析"卓越计划"对高校图书馆信息服务影响基础上,提出以完善学科馆员制度和一线服务品牌、创建"卓越计划"的一站式服务和学科导航服务体系、加强针对"卓越计划"读者信息素养及创新能力培养的读者研究、构建高效的校企合作的信息资源共享平台等举措来强化高校图书馆信息服务创新能力,为"卓越计划"创新型、高素质人才的培养提供强有力的智力支持和资源保障。

关键词：高校图书馆 “卓越计划” 信息服务服务创新

紫外光固化环氧-丙烯酸酯/聚氨酯-丙烯酸酯复合型水性涂料的研制

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涂料工业 2005年第2期35卷 1-4页

作者：汪存东王久芬华北工学院化学工程系太原030051

制备了可反应性的阴离子型聚氨酯-丙烯酸酯,并用其作为乳化剂制成了可紫外光固化的水性环氧-丙烯酸酯/聚氨酯-丙烯酸酯复合型水性涂料。讨论了聚氨酯-丙烯酸酯的乳化机理,及其对环氧-丙烯酸酯水分散体系稳定性及涂膜性能的影响。

关键词：紫外光固化环氧水性涂料并用阴离子型涂膜性能乳化机聚氨酯-丙烯酸酯水分散体系稳定性

Overview of in-situ oxygen production technologies for lunar resources

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 233-255页

作者： Youpeng Xu Sheng Pang Liangwei Cong Guoyu Qian dong wang Laishi Li Yusheng Wu Zhi wang College of Materials Science and Engineering Shenyang University of TechnologyShenyang 110870China CAS Key Laboratory of Green Process and Engineering National Engineering Research Center for Green Recycling of Strategic Metal ResourcesInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Innovation Academy for Green Manufacture Chinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China

The rich resources and unique environment of the Moon make it an ideal location for human expansion and the utilization of extraterrestrial ***,crucial for supporting human life on the Moon,can be extracted from lunar regolith,which is highly rich in oxygen and contains polymetallic *** oxygen and metal extraction can be achieved using existing metallurgical ***,the ample reserves of water ice on the Moon offer another means for oxygen *** paper offers a detailed overview of the leading technologies for achieving oxygen production on the Moon,drawing from an analysis of lunar resources and environmental *** delves into the principles,processes,advantages,and drawbacks of water-ice electrolysis,two-step oxygen production from lunar regolith,and one-step oxygen production from lunar *** two-step methods involve hydrogen reduction,carbothermal reduction,and hydrometallurgy,while the one-step methods encompass fluorination/chlorination,high-temperature decomposition,molten salt electrolysis,and molten regolith electrolysis(MOE).Following a thorough comparison of raw materials,equipment,technology,and economic viability,MOE is identified as the most promising approach for future in-situ oxygen production on the *** the corrosion characteristics of molten lunar regolith at high temperatures,along with the Moon's low-gravity environment,the development of inexpensive and stable inert anodes and electrolysis devices that can easily collect oxygen is critical for promoting MOE technology on the *** review significantly contributes to our understanding of in-situ oxygen production technologies on the Moon and supports upcoming lunar exploration initiatives.

关键词： lunar resources in-situ oxygen production space metallurgy molten lunar regolith electrolysis

Comparison of three different surgical approaches for treatment of thoracolumbar burst fracture

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Chinese Journal of Traumatology 2013年第1期16卷 31-35页

作者： WU Han wang Chun-xin GU Chang-yue ZHANG Zi-yan TONG Shen YAN Hua-dong wang jin-cheng Department of Orthopedic Surgery China-Japan UnionHospital of Jilin University Changchun 130033 China

Objective： The main treatment method used for thoracolumbar fractures is open reduction and in- ternal fixation. Commonly there are three surgical approaches： anterior, posterior and paraspinal. We attempt to compare the three approaches based on our clinical data analysis. Methods： A group of 94 patients with Denis type A or B thoracolumbar burst fracture between March 2008 and September 2010 were recruited in this study. These patients were treated by anterior-, posterioror paraspinal-approach reduction with or without decompression. The fracture was fixed with titanium mesh and Z-plate via anterior approach （24 patients）, screw and rod system via posterior approach （38 patients） or paraspinal approach （32 patients）. Clinical evaluations included operation duration, blood loss, inci- sion length, preoperative and postoperative Oswestry disability index （ODI）. Results： The average operation duration （94.1 min±13.7 rain）, blood loss （86.7 ml-20.0 ml）, length of incision （9.3 mm± 0.7 mm） and postoperative ODI （6±0.5） were significantly lower （P〈0.05） in paraspinal approach group than in traditional posterior approach group （operation duration 94.1 min±13.7 min, blood loss 143.3 ml±28.3 ml, length of incision 15.4 cm±2.1 cm and ODI 12±0.7） and anterior approach group （operation duration 176.3 min±20.7 min, blood loss 255.1 ml±38.4 mt, length of incision 18.6 cm±2.4 cm and ODI 13±2.4）. There was not statistical difference in terms of Cobb angle on radiographs among the three approaches. Conclusion： The anterior approach surgery is conve- nient for resection of the vertebrae and reconstruction of vertebral height, but it is more complicated and traumatic. Hence it is mostly used for severe Denis type B fracture. The posterior approach is commonly applied to most thoracolumbar fractures and has fewer complications compared with the anterior approach, but it has some shortcomings as well. The paraspinal approach has great advantages compared with the other two approach

关键词： Thoracic vertebrae Lumbar vertebrae Fractures, bone Surgical procedures, operative Spine