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Cu含量对FePt薄膜退火温度的影响

稀有金属材料与工程 2005年第10期34卷 1578-1581页

作者：王芳许小红武海顺山西师范大学山西临汾041004

采用共溅射方法在玻璃基片上制备了(FePt)1-xCux合金薄膜,FePt合金中添加Cu可以有效降低退火温度,(FePt)1-xCux(x=19.5%)在350℃退火后可以使面内矫顽力Hc∥达到200kA/m,垂直矫顽力Hc⊥达到280kA/m左右,而纯FePt仅有几千A/m。X射线衍射... 详细信息

采用共溅射方法在玻璃基片上制备了(FePt)1-xCux合金薄膜,FePt合金中添加Cu可以有效降低退火温度,(FePt)1-xCux(x=19.5%)在350℃退火后可以使面内矫顽力Hc∥达到200kA/m,垂直矫顽力Hc⊥达到280kA/m左右,而纯FePt仅有几千A/m。X射线衍射结果表明退火后形成的FePtCu三元合金是降低退火温度的主要原因。剩磁曲线分析表明Cu的加入不能明显降低晶粒间交换耦合作用。(FePt)1-xCux在400℃退火可以得到10-24m3的磁激活体积。

关键词： FePt薄膜退火温度剩磁曲线磁激活体积

Molten Salts/Ceramic-Foam Matrix Composites by Melt Infiltration Method as Energy Storage Material

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Journal of Wuhan University of Technology(Materials Science) 2009年第4期24卷 651-653页

作者：吴建锋 School of Materials Science and Engineering Wuhan University of Technology

A new type of high temperature energy storage material was obtained through the melt infiltration method, using compounding SiC ceramic foam as matrix and Na2SO4 as phase change material. The resulting composite material was measured by XRD, SEM, TG-DSC methods. The experimental results indicate that the composite is composed of silicon carbide, sodium sulfate and square quartz, and no chemical reactions occurs between Na2SO4 and SiC matrix. Na2SO4 has a good bonding with the SiC ceramic foam matrix. As the composite material is characterized by high thermal energy storage density and high thermal conductivity, it is suit for energy storage under high temperature.

关键词： infiltration salt/ceramics SiC energy storage phase change materials ceramic foam

Study of the Influencing Factor of the Breast Mean Glandular Dose in Mammography Based on the Back Propagation Neural Network

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Study of the Influencing Factor of the Breast Mean Glandular...

CDH1 germline mutations in a Chinese cohort with hereditary diffuse gastric cancer

2009中华医学会影像技术分会第十七次全国学术大会

作者： MAO Cuiping xu xiaohong ZHANG Weimin ZHANG Deying 浙江大学医学院附属第二医院

Objective:To construct the Back Propagation Neural Network (BPNN) Model of the influencing factor for the breasts mean glandular dose in mammography.

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CDH1 germline mutations in a Chinese cohort with hereditary ...

2021年中国肿瘤标志物学术大会暨第十五届肿瘤标志物青年科学家论坛

作者： Zhiwen Pan Wenming Cao Cong Luo xiaohong xu Zhejiang Cancer Hospital

Purpose: Germline mutations in CDH1 are associated with hereditary diffuse gastric cancer(HDGC) and have been identified in multiple ethnicities. However, CDH1 germline mutations have seldom been documented in Chinese patients with HDGC, and their frequency remains unclear. Here, we aimed to examine the frequency of CDH1 germline mutations in Chinese patients with HDGC. In total,285 patients who met the International Gastric Cancer Linkage Consortium 2015 testing criteria of HDGC for CDH1 germline mutations were ***: All 16 CDH1 exons, including neighboring intronic sequences, were amplified using polymerase chain reaction and screened using Sanger sequencing. Variants were analyzed using Mutation Surveyor V4.0, SIFT, and PolyPhen-2 ***: Three nonsense and nine missense CDH1 germline mutations were identified in 21 of 285 index cases(7.4%). Two CDH1 germline mutations, N405 Y(Asn405 Tyr) and W409 X(Trp409 Ter), were identified as new variants. In addition, up to 28.6% of CDH1 mutations in the 21 indicated patients were identified as c.1775 G>C(E551 Q). The frequency of CDH1 mutations was 6.5%(7/108) in HDGC and 7.9%(14/177) in early onset diffuse gastric cancer(EODGC). The mutation detection rates of CDH1 in males and females were 6.7%(4/60) and 8.5%(10/117) in EODGC and 4.6%(3/65)and 9.3%(4/43) in HDGC, ***: These data reveal, for the first time, the type and frequency of CDH1 germline mutations in Chinese HDGC and demonstrate that germline CDH1 mutations are a noteworthy contributor to the high frequency of HDGC in Chinese.

关键词： CDH1 mutation screening E-cadherin hereditary diffuse gastric cancer germline mutation

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德国跨文化传播的特点及借鉴意义

中国广播电视学刊 2005年第4期 75-77页

作者：徐笑红浙江大学新闻与传播学院

所谓跨文化传播作品,就是把异族异邦异国之间的不同文化放在一起进行比较探究,从而互相认识互相了解的作品.我们往往把这类跨文化作品及制作人称为文化使者,因为这类作品肩负着不同寻常的重任,能推动各文化间的理解,引发文化的交融.

关键词：德国跨文化传播大众传媒文化交融

多角度探讨国企改革之路——“国企改革与制度演化”学术研讨会综述

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南开经济研究 2005年第5期 111-112,F0003页

作者：徐晓红安徽大学经济学院

由编辑部、安徽大学经济学院、中信出版社编辑室联合主办的"国企改革与制度演化"学术研讨会,于2005年7月10日至11日在安徽大学召开,来自全国各地近30所知名高校、学术机构的近百名专家和学者参加了研讨.专家和学者们围绕"国企改革与制... 详细信息

由编辑部、安徽大学经济学院、中信出版社编辑室联合主办的"国企改革与制度演化"学术研讨会,于2005年7月10日至11日在安徽大学召开,来自全国各地近30所知名高校、学术机构的近百名专家和学者参加了研讨.专家和学者们围绕"国企改革与制度演化"这一主题,仁者见仁、智者见智,从不同视角对国有企业下一步的改革方向进行了热烈讨论.

关键词：国企改革学术研讨会制度演化研讨会综述《经济研究》安徽大学中信出版社经济学院《比较》

Virilizing Ovarian Leydig Cell Tumor with Multiple Non-Functional Endocrine Neoplasias: A Case Report

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International Journal of Clinical Medicine 2019年第4期10卷 306-315页

作者： Yining Xie Shan Zhong Qijing Zhou Zhiheng Huang Xiaoxiao Song xiaohong xu Department of Endocrine and Metabolic Diseases The Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China Department of Radiology The Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China Department of Surgical Oncology The Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China Department of Otorhinolaryngology The Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China

Ovarian Leydig cell tumor, a sub-type of ovarian steroid cell tumor, accounts for less than 0.1% of all ovarian tumors. It can affect women of any age group but is most common in postmenopausal women. We here report a case of virilizing ovarian Leydig cell tumor with multiple non-functional endocrine neoplasias (pituitary and adrenal adenomas) in a 48-year-old woman. She first presented with sub-abdominal pain and hirsutism since menopause three years ago. Subsequently, she had slight facial acne, voice deepening, breast atrophy, and a prominent Adam’s apple. Her hormone profile showed an elevated level of testosterone, high free androgen index, low levels of luteinizing hormone and follicle stimulating hormone, and normal levels of random cortisol, androstenedione, 17-hydroxyprogesterone and dehydroepiandrosterone sulfate. A pelvic enhanced magnetic resonance imaging (MRI) scan showed nodules in the right ovary, and a pituitary enhanced MRI revealed a microadenoma. An enhanced computerized tomography scan of the adrenal gland revealed left adrenal nodules, possibly adenomas. After a right cystectomy and right fallopian tube resection, her testosterone level declined to 0.38 nmol/L and the symptoms associated with hyperandrogenism improved. This is a rare case of virilizing ovarian Leydig cell tumor with multiple non-functional endocrine neoplasias. We believe our findings will be helpful in the clinical diagnosis and treatment of hyperandrogenism.

关键词： Leydig Cell Tumor Ovary Adrenal Adenomas Hyperandrogenism

(CoMn)_n(n=1～5)合金团簇的结构和磁性

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Chinese Journal of Chemical Physics 2005年第4期18卷 552-558页

作者：吕瑾许小红武海顺山西师范大学化学与材料科学学院临汾041004

采用密度泛函理论中的局域自旋密度近似和广义梯度近似对(CoMn)n(n=1～5)团簇的几何构型进行优化、能量、频率和磁性计算,确定了团簇的基态,对其基态的磁性和电子结构进行了系统研究,并与相对应的一元团簇进行了结构和磁性比较.研究表明... 详细信息

采用密度泛函理论中的局域自旋密度近似和广义梯度近似对(CoMn)n(n=1～5)团簇的几何构型进行优化、能量、频率和磁性计算,确定了团簇的基态,对其基态的磁性和电子结构进行了系统研究,并与相对应的一元团簇进行了结构和磁性比较.研究表明,两种方法确定的基态构型基本一致,当n=1～4时,等比CoMn二元合金团簇的几何形状仍与一元团簇相同;(CoMn)3和(CoMn)4团簇出现了磁性双稳态,显示铁磁性和反铁磁性耦合;二元CoMn合金团簇中Co、Mn原子磁性仍能保持一元Co、Mn团簇基态的磁性.

关键词：基态构型舍金团簇磁矩反铁磁性自旋密度

长江经济带经济高质量发展的时空演变与区域差距

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经济地理 2020年第3期40卷 5-15页

作者：汪侠徐晓红安徽大学经济学院中国安徽合肥230601

新时代背景下实现经济高质量发展是建设美丽中国的关键。基于2003-2016年长江经济带108个城市的面板数据,采用技术优化的Malmquist-Luenberger指数测算全要素生产率和Dagum基尼系数法对经济质量、效率变化、技术变化的时空演变规律和区... 详细信息

新时代背景下实现经济高质量发展是建设美丽中国的关键。基于2003-2016年长江经济带108个城市的面板数据,采用技术优化的Malmquist-Luenberger指数测算全要素生产率和Dagum基尼系数法对经济质量、效率变化、技术变化的时空演变规律和区域差距进行了测算分析。结果显示:长江经济带经济质量、效率变化、技术变化年均分别增长2.48%、-0.53%、3.03%,技术进步是经济质量优化提升的动力源泉;上、中、下游地区的经济质量随着时间推移呈现阶段性波动特征,下游地区经济质量均值最高,上游次之,中游最低;经济质量高值区空间分布格局由上、下游地区演化为中、下游地区,效率变化高值区呈长江中游城市群和长三角城市群为双中心的空间集聚格局,技术变化高值区分布在中、上游地区;经济质量、效率变化、技术变化总体区域差距有扩大趋势,区域间差距是导致总体区域差距的主要原因。

关键词：长江经济带高质量发展时空演变区域差距