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区域创新体系模式及演化分析——基于开发—探索模式的视角

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研究与发展管理 2015年第1期27卷 61-68页

作者：潘鑫王元地金珺陈劲四川大学公共管理学院成都610065 四川大学商学院成都610065 清华大学创新管理研究中心北京100084 浙江大学管理学院杭州310058

基于企业层面的开发—探索研究,提出了一种新的区域创新体系模式划分,这种模式划分可以与政策以及政策工具更紧密地连接.采用1986—2011年中国省级专利数据对我国区域创新体系模式的演化进行了分析.结果表明,我国存在开发型、探索型和... 详细信息

基于企业层面的开发—探索研究,提出了一种新的区域创新体系模式划分,这种模式划分可以与政策以及政策工具更紧密地连接.采用1986—2011年中国省级专利数据对我国区域创新体系模式的演化进行了分析.结果表明,我国存在开发型、探索型和混合型3种区域创新体系模式,当前我国开发型模式主要分布在中西部内陆地区,探索型模式主要分布在沿海发达省市,其余部分为混合型模式.本文新的区域创新体系模式的划分对区域创新体系发展提供了参考.

关键词：区域创新体系开发-探索模式演化分析

An Accurate and Efficient Frequency Estimation Algorithm by Using FFT and DTFT

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An Accurate and Efficient Frequency Estimation Algorithm by ...

激光光整对高硅铝合金缸套材料摩擦磨损性能的影响

第三十九届中国控制会议

作者： jinyu Liu Lei Fan Jiyu jin Xinzhe Wang jun Xing Wenbo He School of Information Science and Engineering Dalian Polytechnic University

In this paper,a new algorithm of sinusoidal signal frequency estimation based on interpolation of Fast Fourier Transform（FFT） and Discrete-Time Fourier Transform（DTFT） is ***,N-point FFT is used to search the position of the maximum FFT spectrum line and get the rough frequency *** three DTFT spectrum lines located at any position within the main lobe is used to obtain the fine frequency estimation ***,in order to further improve the estimation performance,the proposed algorithm is combined with Candan *** to the simulation results,Root Mean Square Error（RMSE） of the proposed algorithm is significantly lower than Candan algorithm,RCTSL algorithm and A＆M *** a wide range of Signal-to-Noise Ratio（SNR）,the proposed algorithm is closer to the Cramer-Rao lower bound（CRLB） than the competitive *** terms of computation complexity,the proposed algorithm in this paper is lower than A＆M algorithm,HAQSE algorithm and RCTSL algorithm.

关键词： signal processing frequency estimation FFT DTFT

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中国表面工程 2017年第5期30卷 89-94页

作者：李承娣金梅徐久军沈岩大连海事大学船机修造工程交通行业重点实验室辽宁大连116026

切取高硅铝合金缸套试样,并对工作面进行激光光整,研究其对摩擦磨损性能的影响。结果表明,激光扫描速度为600 mm/min,离焦量2 mm,功率为1 000 W时硅颗粒最大凸出高度为1.243μm,与未处理试样相比,摩擦因数从0.141降到0.113,降幅达19.9%... 详细信息

切取高硅铝合金缸套试样,并对工作面进行激光光整,研究其对摩擦磨损性能的影响。结果表明,激光扫描速度为600 mm/min,离焦量2 mm,功率为1 000 W时硅颗粒最大凸出高度为1.243μm,与未处理试样相比,摩擦因数从0.141降到0.113,降幅达19.9%,磨损量从0.7 mg降到0.2 mg,降幅达71.4%;激光光整使高硅铝合金缸套工作面上的硅颗粒凸出且边角圆化,硅颗粒的凸出,避免了铝基体与活塞环的直接接触,并增大了储油润滑的效果,减少了粘着磨损的风险,也降低了摩擦力,从而改善了高硅铝合金缸套材料的摩擦磨损性能。

关键词：激光光整高硅铝合金缸套摩擦磨损硅颗粒凸出高度

Comparison of the incidence of late stent thrombosis after implantation of different drug-eluting stents in the real world coronary heart disease patients： three-year follow-up results

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Chinese Medical Journal 2010年第7期123卷 778-781页

作者： CHEN Ji-lin GAO Li-jian YANG Yue-jin LI Jian-jun QIAO Shu-bin XU Bo HUANG jing-han YAO Min QIN Xue-wen LIU Hai-bo WU Yong-jian YUAN jin-qing CHEN Jue YOU Shi-jie DAI jun GAO Run-lin Center for Coronary Heart Disease Cardiovascular Institute & Fu Wai Hospital Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100037 China

Background Late stent thrombosis （LST） is still concerned by interventions cardiologists in daily clinical practice. This study aimed to compare the incidence of LST after implantation of different drug-eluting stents （DES） in coronary heart disease （CHD） patients in the real *** From December 2001 to February 2009, a total of 11 875 consecutive CHD patients undergone DES implantation were enrolled in this single-center registery study. Patients with acute ST-segment elevation myocardial infarction, mixed DES implantation, restenosis lesions, and patients who could not take dual antiplatlet medication and those who were contraindicated for coronary interventional treatment were excluded. All patients were treated with completed dual antiplatelet medications for at least 9 months after DES deployment. The follow-up was completed by outpatient visits, letter correspondence, phone calls and coronary angiography. Definite LST was diagnosed auording to the Academic Research Consortium （ARC） *** Cypher or Cypher Select stents were implanted in 4104 cases, Taxus or Taxus Liberty stents in 2271 cases and Firebird stents （Chinese rapamycin-eluting stents） in 5500 cases. One-year follow-up was completed in 9693 patients, including 3346 cases with Cypher or Cypher Select stents, 1529 cases with Taxus or Taxus Liberty stents and 4818 cases with Firebird stents. Two- and three-year follow-up results were obtained in 7133 and 4353 patients, respectively, including 2410 and 1760 cases with Cypher or Cypher Select stents, 1285 and 900 cases with Taxus or Taxus Liberty stents as well as 3438 and 1693 cases with Firebird stents. One-year follow-up results showed that the incidence of LST was 1.08% in patients with Cypher or Cypher Select stents, 1.24% in those with Taxus or Taxus Liberty stents and 0.71% in those with Firebird stents; there was no significant difference between those with Cypher or Cypher Select and Firebird stents, but there was significant

关键词： coronary heart disease drug-eluting stents late stent thrombosis

Arc-trench System of the Paleo-Tethys Ocean: Inferred from Ophiolite in the Southern Lancangjiang Belt, SW China

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Acta Geologica Sinica(English Edition) 2020年第S1期94卷 79-79页

作者： ZHAI Qingguo tanG Yue HU Peiyuan jin Xiaochi WANG jun WANG Haitao Key Laboratory of Deep-Earth Dynamics of the Ministry of Natural Resources Institute of GeologyChinese Academy of Geological SciencesBeijing 100037China

The Paleo-Tethys Ocean is usually interpreted as a Paleozoic ocean basin located between the Gondwana and Laurasia supercontinents. The Paleo-Tethyan orogenic record is well preserved in the Sanjiang area of SW China. However, ophiolites are commonly dismembered in orogenic belt, and complete ophiolite sequences are rare in the Sanjiang area. The southern Lancangjiang belt is the most complicated tectonic complex of the Sanjiang Paleo-Tethyan orogen, SW China, and is key to understanding the evolution of the orogen. In this study, we focused on mafic–ultramafic rocks in the Yakou and Banpo areas of the southern Lancangjiang belt, of which newly discovered Yakou rocks show a complete ophiolite sequence. These rocks are composed of serpentinized peridotite, isotropic and cumulate gabbros, massive and pillow basalts, and plagiogranite. Whole-rock geochemical data indicate that these rocks were formed in an oceanic ridge setting, and they show depletions in Nb, Ta and Ti, and enrichment in Pb, suggesting a supra-subduction zone affinity of a back-arc setting. Furthermore, positive εNd(t)(+4.5 to +6.7) and zircon εHf(t) values(+12.4 to +14.3), as well as mantle-like δ18O values(~5.5‰), suggest that these rocks were derived from a long-term depleted mantle source. All of these features suggest that the Yakou mafic-ultramafic complex represents an ophiolite suite, making it the first complete ophiolite sequence to be discovered in the southern Lancangjiang orogenic belt. The Banpo complex gabbroic rocks have similar whole-rock geochemical and Sr-Nd isotopic, and zircon O-Hf isotopic compositions to those of the Yakou complex, suggesting an N-MORB affinity. Thus, maficultramafic rocks from the Banpo and jinghong areas are most likely dismembered ophiolite suites. Considering these various characteristics, we consider that the Yakou, Banpo, and jinghong mafic-ultramafic complexes represent an ophiolite belt but not a magmatic arc belt. SHRIMP zircon U-Pb dating yield weighte

关键词： ophiolite zircon U-Pb dating arc-trench system southern Lancangjiang belt Paleo-Tethys

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心理因素对鼻咽癌治疗影响的研究

中华肿瘤防治杂志 2011年第1期18卷 5-9页

作者：林荣金田俊福建医科大学2008级研究生班福建福州350004 福建医科大学公共卫生学院流行病与卫生统计学系福建福州350004

目的:了解鼻咽癌患者治疗期间的心理状况,分析其影响因素,为鼻咽癌患者的康复治疗提供理论依据。方法:对福建省肿瘤医院住院的217例鼻咽癌患者进行问卷调查。采用χ2检验方法分析疾病恐惧、应对方式、焦虑状况和抑郁状况等心理因素与放... 详细信息

目的:了解鼻咽癌患者治疗期间的心理状况,分析其影响因素,为鼻咽癌患者的康复治疗提供理论依据。方法:对福建省肿瘤医院住院的217例鼻咽癌患者进行问卷调查。采用χ2检验方法分析疾病恐惧、应对方式、焦虑状况和抑郁状况等心理因素与放化疗不良反应的关系。采用非条件Logistic回归方法分析心理状况及放化疗不良反应的危险因素。结果:鼻咽癌患者恐惧、焦虑和抑郁的程度越严重,放化疗不良反应也越严重;影响焦虑的主要因素有性别、医院适应情况、食欲、放化疗不良反应、疾病恐惧感和康复锻炼等。影响抑郁的主要因素有年龄、主要护理陪护人员、疾病恐惧感、食欲、医院适应情况和康复锻炼等;影响放化疗不良反应的主要因素有年龄、每日热能摄入、性别和血红蛋白等。结论:应加强对鼻咽癌患者的健康教育,鼓励患者进行康复锻炼、采用积极的应对方式、改善不良情绪和营养状况,以提高治疗效果和生存质量。

关键词：鼻咽肿瘤生活质量疾病影响状态调查流行病学方法

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接种松材线虫对樟子松生理指标的影响

沈阳农业大学学报 2020年第6期51卷 649-655页

作者：尹大川邓玉侠祁金玉陈凤毛郝德君谈家金孙守慧沈阳农业大学林学院沈阳110161 辽宁生态工程职业学院实验林场辽宁抚顺113300 南京林业大学林学院南京210018

为探究樟子松苗木接种松材线虫后的生理响应规律,对4年生樟子松苗在接种松材线虫后第0,10,20,30天时针叶内叶绿素含量、抗氧化酶活性、黄酮类化合物和渗透调节物质进行检测。樟子松接种部位上部和下部均检测到大量松材线虫,且下部线虫... 详细信息

为探究樟子松苗木接种松材线虫后的生理响应规律,对4年生樟子松苗在接种松材线虫后第0,10,20,30天时针叶内叶绿素含量、抗氧化酶活性、黄酮类化合物和渗透调节物质进行检测。樟子松接种部位上部和下部均检测到大量松材线虫,且下部线虫数多于上部。接种后第10,20,30天,樟子松生长受到严重抑制,针叶枯黄,叶绿素a含量在接种之后随即开始降低,但未达到显著差异水平,第30天时达到差异显著。叶绿素b含量在整个试验过程中均显著低于对照组;樟子松针叶抗氧化酶活性,且CAT和POD活性变化规律相似,均为"先升高后降低",SOD活性升高较为平缓,且整个试验过程维持在较高水平,均不低于800U·mgprot^-1。3种酶活性均与对照相比达到显著差异;接种后10d,樟子松针叶内可溶性蛋白含量开始上升,在第20天和第30天逐渐下降,并且低于对照组,但未达到显著差异水平;黄酮类化合物与MDA含量变化规律与抗氧化酶活性相似,都呈现出"先升高后降低"趋势。虽然降低,但试验全程高于对照组,且达到极显著差异水平。接种松材线虫后,樟子松的生长受到严重抑制,叶绿素含量下降。与此同时,樟子松抗氧化酶活性含量均会迅速升高,诱导植株产生防御反应,但随着时间推移,活性会出现下降趋势;可溶性蛋白和黄酮类化合物变化规律与抗氧化酶相似,应为线虫胁迫下,苗木瞬间出现应激反应,随后降低;MDA含量变化规律为升高,而后平缓,最后降低,表明细胞受到严重破坏,使针叶变黄进而导致植株枯萎死亡。

关键词：樟子松松材线虫抗氧化酶渗透调节物质

Diagnosis of follicular lymphoma by laparoscopy: A case report

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World Journal of Clinical Cases 2019年第8期7卷 984-991页

作者： Cheng Wei Feng Xiong Zhi-Chao Yu De-Feng Li Ming-Han Luo Ting-Ting Liu Ying-Xue Li Ding-Guo Zhang Zheng-Lei Xu Hong-Tao jin Qi tang Li-Sheng Wang Jian-Yao Wang jun Yao Department of Gastroenterology Jinan University of Second Clinical Medical Sciences Shenzhen Municipal People's Hospital Department of General Surgery Shenzhen Children's Hospital

BACKGROUND Over the past years, only few cases of follicular lymphoma diagnosed by laparoscopy have been reported in the world. Since follicular lymphoma related ascites often causes occult disease and lacks specific clinical manifestations, it is often difficult to identify the cause by routine laboratory tests and imaging methods. Diagnostic experience is not sufficient and more cases need to be accumulated for further *** SUMMARY Ascites due to unknown reasons often causes problems for clinical diagnosis and treatment. In this paper, we report one case with ascites in whom the reason causing ascites was not identified through routine examination. Laparoscopic examination of the celiac lesions and histological examination of the lesions were performed and the final diagnosis was peritoneal follicular *** Laparoscopic abdominal examination is of great significance for the definite diagnosis of ascites due to an unknown reason.

关键词： Follicular lymphoma Laparoscopy Ascites Case report

利用原子力显微镜峰值力定量测量模式分析人间充质干细胞早期分化的力学表型

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第二军医大学学报 2017年第10期38卷 1261-1266页

作者：刘知晓张金金王鑫艳陈峰胡钧吕军鸿中国科学院上海应用物理研究所物理生物学实验室上海201800 中国科学院大学化学与化工学院无机化学教研室北京100049 国家蛋白质科学中心(上海) 上海200031 首都医科大学附属北京世纪坛医院北京100038

目的建立通过力学表型来灵敏反映人间充质干细胞分化早期微小力学性质变化的技术。方法使用基于原子力显微镜峰值力定量纳米力学作图(peak force quantitative nanomechanical mapping,PF-QNM)技术,测量在不同浓度氯化锂诱导下人间充质... 详细信息

目的建立通过力学表型来灵敏反映人间充质干细胞分化早期微小力学性质变化的技术。方法使用基于原子力显微镜峰值力定量纳米力学作图(peak force quantitative nanomechanical mapping,PF-QNM)技术,测量在不同浓度氯化锂诱导下人间充质干细胞的力学变化过程。结果 4mmol/L和30mmol/L氯化锂处理干细胞48h后其纳米力谱就有显著的差异;但要到72h之后,平均杨氏模量才能区分不同浓度氯化锂处理所导致的差别。结论纳米力谱比平均杨氏模量更能反映干细胞分化早期的力学性质变化。基于纳米力谱的力学表型可以作为物理生物学标记来鉴定干细胞的早期分化。

关键词：间质干细胞力学表型纳米力谱细胞分化