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    题名 作者 年代 出处 被引量
1基于TRIZ理论和功能分析的产品创新设计显示文摘阐述了产品功能分析法、TRIZ理论的最终理想解和物场分析方法,建立了基于TRIZ理论和功能分析的产品创新设计流程。该流程将产品的创新设计分为产品功能分析、抽象理想解,构建系统物场模型和解决问题功能模型几个阶段,指导设计人员从产品的功能出发,快速实现产品的创新设计。并以液压缸往复密封为例,说明该流程的有效性。卢希美 张付英 张青青 2010机械设计与制造2010,,12:67
2丹江口水库秋汛期长期径流预报显示文摘针对目前长期径流预报中物理成因考虑较少的问题,以丹江口水库为例,在分析影响径流物理背景的基础上,研究前期气象因子与水库秋汛期入库径流过程的相关关系,识别影响径流的大气环流与海温等物理因子,利用主成分分析法提取主要预报信息,建立了包含大气环流因子、海温因子等气象物理信息以及前期降雨、径流等水文信息作为预报因子集的三层BP神经网络预报模型.利用1956~2008年秋汛期9、10月入库径流量进行模拟与试报,并与仅采用前期降雨径流的预测模型进行了比较,结果显示基于物理成因分析的预测模型稳定性良好,模拟及试报精度较高,9、10月试报精度平均提高约30%,分别达到87.5%和75%,并对预报年份中的丰枯特征有较好的体现.刘勇 王银堂 陈元芳 王宗志 胡健 冯小冲 2010水科学进展2010,21,6:33
3一种基于正态分布交叉的ε-MOEA显示文摘实数编码的多目标进化算法常使用模拟二进制交叉(simulated binary crossover,称SBX)算子.通过对SBX以及进化策略中变异算子进行对比分析,并引入进化策略中的离散重组算子,提出了一种正态分布交叉(normal distribution crossover,称NDX)算子.首先在一维搜索空间实例中对NDX与SBX算子进行比较和分析,然后将NDX算子应用于Deb等人提出的稳态多目标进化算法ε-MOEA(ε-dominance based multiobjective evolutionary algorithm)中.采用NDX算子的ε-MOEA(记为ε-MOEA/NDX)算法在多目标优化标准测试集ZDT和DTLZ的10个函数上进行了实验比较.实验结果和分析表明,采用NDX的ε-MOEA所求得的Pareto最优解集质量明显优于经典算法ε-MOEA/SBX和NSGA-Ⅱ.张敏 罗文坚 王煦法 2009软件学报2009,20,2:33
4基于ZigBee无线传感器网络的农业环境监测系统研究与设计显示文摘针对目前农业环境在线监测的需要,提出了一种基于ZigBee无线传感器网络的农业环境监测系统设计方案,该监测系统由无线监测网络和远程监控中心组成,可对影响作物生长的温度、湿度、光照等环境变量进行实时监测。介绍了系统的总体架构,设计开发了无线传感器网络节点、基站以及软件流程。由于采用了无线传输方式,该系统解决了有线通信方式存在的难以扩展、难以升级等问题,具有低功耗、低成本、扩展灵活等优点,其应用前景非常广阔。蔡镔 毕庆生 李福超 王栋 杨英 袁超 2010江西农业学报2010,22,11:24
5基于熵权的综合指数法在地下水水质评价中的应用显示文摘针对地下水水质评价中各指标对水质评价结果影响程度的不同,将熵值理论与综合指数法相结合构建了基于熵权的综合指数模型,利用信息熵反映数据自身的效用值确定权重系数,实现权重随指标影响程度的动态变化,以实例分析并与综合指数法、模糊数学法做了比较。结果表明,该模型评价客观、可靠,可适用于水质评价。张鉴 束龙仓 张琛 李娴 季叶飞 马超群 2010水电能源科学2010,28,8:20
6Herbal traditional Chinese medicine and its evidence base in gastrointestinal disorders显示文摘Herbal traditional Chinese medicine(TCM) is used to treat several ailments, but its efficiency is poorly documented and hence debated, as opposed to modern medicine commonly providinge ffective therapies. The aim of this review article is to present a practical reference guide on the role of herbal TCM in managing gastrointestinal disorders, supported by systematic reviews and evidence based trials. A literature search using herbal TCM combined with terms for gastrointestinal disorders in Pub Med and the Cochrane database identified publications of herbal TCM trials. Results were analyzed for study type, inclusion criteria, and outcome parameters. Quality of placebo controlled, randomized, double-blind clinical trials was poor, mostly neglecting stringent evidence based diagnostic and therapeutic criteria. Accordingly, appropriate Cochrane reviews and meta-analyses were limited and failed to support valid, clinically relevant evidence based efficiency of herbal TCM in gastrointestinal diseases, including gastroesophageal reflux disease, gastric or duodenal ulcer, dyspepsia, irritable bowel syndrome, ulcerative colitis, and Crohn's disease. In conclusion, the use of herbal TCM to treat various diseases has an interesting philosophical background with a long history, but it received increasing skepticism due to the lack of evidence based efficiency as shown by high quality trials; this has now been summarized for gastrointestinal disorders, with TCM not recommended for most gastrointestinal diseases. Future studies should focus on placebo controlled, randomized, double-blind clinical trials, herbal product quality and standard criteria for diagnosis, treatment, outcome, and assessment of adverse herb reactions. This approach will provide figures of risk/benefit profiles that hopefully are positive for at least some treatment modalities of herbal TCM. Proponents of modern herbal TCM best face these promising challenges of pragmaticmodern medicine by bridging the gap between the two medicinal cultures.Rolf Teschke Albrecht Wolff Christian Frenzel Axel Eickhoff Johannes Schulze 2015World Journal of Gastroenterology2015,21,15:19
7一种基于干涉仪体制的机载测向技术研究显示文摘详细分析了机载测向系统特点以及干涉仪测向原理,讨论了适合机载环境的测向天线阵阵元个数、阵列孔径与无模糊测向以及测向精度的关系。针对机载测向天线易受金属机体二次反射影响和安装空间受限等特点,给出了一种适合机载安装条件的9阵元椭圆型测向天线阵的设计并进行了性能分析和仿真验证。仿真结果表明,选用该测向天线阵,系统具有较强的抑制相位畸变能力和较好的测向精度。杨忠 2010无线电工程2010,40,12:18
8基于AR模型与神经网络的核爆与闪电电磁脉冲信号识别显示文摘对平稳随机信号功率谱估计的AR模型,分别利用自相关函数法和Burg算法求该模型系数,作为核爆炸和闪电电磁脉冲信号的特征值;采用BP神经网络作为分类器以及不同的隐含层数和隐含层节点数,对核爆和闪电电磁脉冲实测数据进行识别研究。结果表明:AR参数模型法对两类信号特征值提取是非常有效的,采用Burg算法来求AR模型参数,其特征值提取效果优于自相关函数法。李鹏 宋立军 韩超 郑毅 曹保锋 李小强 张雪芹 梁睿 2010强激光与粒子束2010,22,12:15
9基于组态王的中央空调监控系统设计显示文摘开发了基于组态王的变频节能中央空调控制系统的上位监控系统,该系统具有主流程图、数据报表、趋势曲线、报警事件等完善功能。重点实现了耗能报表统计,可以方便有效进行耗能日报表、月报表、年报表的生成、统计、查询和打印。王欢 严良文 徐凤平 李文 2010机械设计与制造2010,,12:15
10微量元素B在γ-TiAl基合金的应用研究进展显示文摘综述了微量元素B在TiAl基合金中应用的研究现状,重点阐述B对TiAl基合金组织细化的机制,并分析硼化物结构与形态的影响因素及其对TiAl基合金微观组织和力学性能的影响,对B在TiAl基合金中的进一步研究应用提出了建议。郑立静 杨莉莉 张虎 2010稀有金属材料与工程2010,39,10:15
11基于离散单元法的粉末高速压制流动过程模拟显示文摘将离散单元法应用于粉末高速压制流动过程研究,以模拟粉体流动的非连续特性。将粉末视为粘弹性的离散颗粒,推导了力与位移表达的粉末高速压制粘弹性本构关系,建立了粉末高速压制成形颗粒流动的离散单元法控制方程;并给出了该模型的动态松弛法求解过程。基于离散单元法求解器PFC软件,对粉末高速压制成形过程颗粒流动情况及密度分布进行了模拟,模拟结果与实验结果较吻合。分析了阻尼系数变化对求解过程的敛散性和压坯密度分布的影响。郑洲顺 王爽 郑珊 曲选辉 2010稀有金属材料与工程2010,39,12:15
12基于射频识别技术的固定资产管理系统显示文摘根据企业资产管理过程中的实际需求,设计并实现了一个基于射频识别技术的资产管理系统。测试结果表明,该系统能够高效地实现对各类资产的生命周期和存在状态进行全方位的跟踪和管理,最大限度地保证资产的使用效率,为企业管理者提供更科学的决策依据。徐丹 何治国 2010计算机与数字工程2010,38,12:14
13Distally based perforator sural flaps for foot and ankle reconstruction显示文摘Distally based perforator sural flaps from the posterolateral or posteromedial lower leg aspect are initially a neurofasciocutaneous flap that can be transferred reversely to the foot and ankle region with no need to harvest and sacrifice the deep major artery. These flaps are supplied by a perforating artery issued from the deep peroneal artery or the posterior tibial artery, and the chainlinked adipofascial neurovascular axis around the sural/saphenous nerve. It is a versatile and reliable technique for soft-tissue reconstruction of the heel and ankle region with 180-degrees rotation. In this paper, we present its developing history, vascular basis, surgical techniques including flap design and elevation, flap variations in pedicle and component, surgical indications, and illustrative case reports with different perforating vessels as pivot points for foot and ankle coverage.Shi-Min Chang Xiao-Hua Li Yu-Dong Gu 2015World Journal of Orthopedics2015,6,3:14
14基于均方差权值法的山东省县域城镇化水平评价显示文摘在多指标综合评价中,各属性指标权重系数的大小对评价结果有着直接而重要的影响.均方差权值法作为诸多客观赋权法中的一种,较好地解决了主观赋权法无法避免的某些随机性和主观臆断性问题,同时也在一定程度上摆脱了某些客观赋权法存在的局限.文章介绍了均方差权值法的基本原理及其操作过程,并运用该方法对山东省县域城镇化综合发展水平进行了评价,就县域城镇化要素特征进行了深入探讨.结果表明,山东省县域城镇化发展极不平衡,空间分异特征极其明显.从总体上看,城镇化发展水平的空间分布同经济发展和社会发展较相吻合,大致呈现为两轴相交的'┣'型格局.王聪 朱喜钢 王富喜 2009山东师范大学学报(自然科学版)2009,24,4:14
15测土配方施肥在晚稻上的应用效果初探显示文摘不同配方施肥在晚稻上的比较试验结果表明:配方施肥比习惯施肥具有较好的增产增收效果,增产幅度在6%以上,增收幅度在680元/hm2以上。方克明 钟国民 占木水 龚文亮 万静 2010江西农业学报2010,22,8:14
16Environmental application of three-dimensional graphene materials as adsorbents for dyes and heavy metals: Review on ice-templating method and adsorption mechanisms显示文摘The remediation of wastewater requires treatment technologies which are robust, efficient,simple to operate and affordable such as adsorption. Lately, three-dimensional(3D)graphene based materials have attracted significant attention as effective adsorbents for wastewater treatment. The intrinsic properties of 3D graphene structure such as large surface area and interconnected porous structure can facilitate the transport of pollutants into the 3D network and provide abundant active sites for trapping the pollutants. For the synthesis of 3D graphene structure, ice-templating is commonly practiced due to its facile steps, cost effectiveness and high scalability potential. This review covers the icetemplating fabrication technique for 3D graphene based materials and their application as adsorbents in eliminating dyes and heavy metals from aqueous media. The assembly mechanisms of the ice-templating fsynthesis are comprehensively discussed. Further discussion on the fundamental principles, critical process parameters and characteristics of ice-templated 3D graphene structures is also included. A thorough review on the mechanisms for batch adsorption of dyes and heavy metals is presented based on the structures and properties of the 3D graphene materials. The review further evaluates the dynamic adsorption in packed columns and the regeneration of 3D graphene based materials.Kar Chiew Lai Lai Yee Lee Billie Yan Zhang Hiew Suchithra Thangalazhy-Gopakumar Suyin Gan 2019Journal of Environmental Sciences2019,31,5:13
17Efficient spectrum prediction and inverse design for plasmonic waveguide systems based on artificial neural networks显示文摘In this paper, we propose a novel approach to achieve spectrum prediction, parameter fitting, inverse design, and performance optimization for the plasmonic waveguide-coupled with cavities structure(PWCCS) based on artificial neural networks(ANNs). The Fano resonance and plasmon-induced transparency effect originated from the PWCCS have been selected as illustrations to verify the effectiveness of ANNs. We use the genetic algorithm to design the network architecture and select the hyperparameters for ANNs. Once ANNs are trained by using a small sampling of the data generated by the Monte Carlo method, the transmission spectra predicted by the ANNs are quite approximate to the simulated results. The physical mechanisms behind the phenomena are discussed theoretically, and the uncertain parameters in the theoretical models are fitted by utilizing the trained ANNs.More importantly, our results demonstrate that this model-driven method not only realizes the inverse design of the PWCCS with high precision but also optimizes some critical performance metrics for the transmission spectrum. Compared with previous works, we construct a novel model-driven analysis method for the PWCCS that is expected to have significant applications in the device design, performance optimization, variability analysis,defect detection, theoretical modeling, optical interconnects, and so on.TIAN ZHANG JIA WANG QI LIU JINZAN ZHOU JIAN DAI XU HAN YUE ZHOU KUN XU 2019Photonics Research2019,7,3:13
18Luminescent properties and application of Eu^(3+)-activated Gd_2(MoO_4)_3 red-emitting phosphor with pseudo-pompon shape for solid-state lighting显示文摘Eu3+-activated Gd2(MoO4)3 pseudo-pompon-like red-emitting phosphors were prepared by solid-state method. The structure, morphology, and luminescent properties of these powder samples were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and fluorescent spectrophotometry, respectively. The as-obtained phosphors were single crystalline phase with orthorhombic unit cell. The particles of the powder samples had the length of 5-12 m and width of 3-7 m with flake shape and large surface area, which is suitable for manufacture of white LEDs. The phosphor could be efficiently excited by the incident light of 348-425 nm, well matched with the output wavelength of near-UV (In,Ga)N chip, and re-emitted an intense red light peaking at 615 nm. By combing this phosphor with a ~395 nm-emitting (In,Ga)N chip, a red LED was fabricated, so that the applicability of this novel phosphor to white LEDs was confirmed. It is considered to be an efficient red-emitting conversion phosphor for solid-state lighting based on (In,Ga)N LEDs.贺香红 关明云 李中春 尚通明 连宁 周全法 2010Journal of Rare Earths2010,28,6:13
19PBL与LBL结合在血管外科临床见习教学中的应用显示文摘目的:为提高临床血管外科的教学质量,我们在临床见习中尝试将PBL教学模式与LBL传统教学模式相结合,研究PBL与LBL教学法相结合新的教学方法在临床血管外科教学中的作用。方法:选取在我院参加实习活动的临床医学系学生60名,随机分为LBL组与LBL+PBL组。其中LBL组采用传统教学模式,而LBL+PBL组则采用传统教学与问题导向型教学模式相结合的双轨教学法。课程结束后,对比两组学生的专业知识笔试成绩和临床操作技能测试成绩,评价两种教学模式的作用及意义。结果:PBL+LBL组学生的专业知识笔试成绩和临床操作技能成绩均显著优于LBL组,差异有统计学意义(P<0.05)。结论:PBL与LBL教学法相结合的双规教学模式对血管外科的临床见习教学具有积极的意义,不但可以锻炼学生的临床思维能力,培养学生的综合素质,而且有利于提高临床教学的质量,该教学模式值得在医学院校实习教学中推广应用。武欣 张海军 李学峰 郭连瑞 张建 汪忠镐 谷涌泉 2014现代生物医学进展2014,14,26:13
20EXPLOITATION AND APPLICATIONS OF METASTABLE AUSTENITE MATRIX WEAR ALLOYS显示文摘Fe based cast alloys with double phases structure of m etastable austenite m atrix an d eutecticcarbide M7 C3 were provided with the excellent properties of high abrasion resistance andhigher i m pact toughness . An i m portant reason of high abrasion resistance is hard ness violentincreasing on the m atrix surface because of w ear easily induced m artensite transfor m ation . The exploitation and applications of m etastable austenite m atrix wear alloys of Fe C Cr Nisyste m and Fe C Cr Mn system were described in this paper . The excellent properties of thesealloys w ill be sufficiently indicated by authors’exa m ples . To exploit a class of these alloyswith high abrasion resistance and various im pact toughness for m eeting the requirem ent of dif ferent environ ment , the proble m of the structure design of metastable austenite m atrix wearalloy w as also described in this paper .Y. Q. Ma , Y. H. Qi , X. L. Xu and L. Y. Dai Institute of Metal Material Technology , Dalian Maritime University , Dalian 116026 , China 1999Acta Metallurgica Sinica(English Letters)1999,12,5:12
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