众筹中主体互动、价值共创与产品创新          下载免费PDF全文

曾江洪  黄向荣  吴号 《科研管理》2019,40(11):226-235

产品创新是现代企业保持竞争优势、获得经济利润的有效策略。本文选取四家多次发起同类众筹项目并且后期实现产品创新的企业作为研究对象，运用扎根理论对案例资料数据进行编码分析来研究众筹中如何激发产品创新。研究发现，主体互动通过发起者学习、支持者学习和信息交互实现；与产品创新紧密相关的价值共创形式主要包括共同策划、共同设计、共同测试和共同推广；案例企业均实现了产品创新，即功能创新、形式创新或服务创新；此外，本文构建了理论模型：主体互动促进价值共创过程从而实现产品创新。  相似文献   

Three-dimensional cellular focusing utilizing a combination of insulator-based and metallic dielectrophoresis     

Huang CT  Weng CH  Jen CP 《Biomicrofluidics》2011,5(4):44101-4410111

Particle focusing in microfluidic devices is a necessary step in medical applications, such as detection, sorting, counting, and flow cytometry. This study proposes a microdevice that combines insulator-based and metal-electrode dielectrophoresis for the three-dimensional focusing of biological cells. Four insulating structures, which form an X pattern, are employed to confine the electric field in a conducting solution, thereby creating localized field minima in the microchannel. These electrodes, 56-μm-wide at the top and bottom surfaces, are connected to one electric pole of the power source. The electrodes connected to the opposite pole, which are at the sides of the microchannel, have one of three patterns: planar, dual-planar, or three-dimensional. Therefore, low-electric-field regions at the center of the microchannel are generated to restrain the viable HeLa cells with negative dielectrophoretic response. The array of insulating structures aforementioned is used to enhance the performance of confinement. According to numerical simulations, three-dimensional electrodes exhibit the best focusing performance, followed by dual-planar and planar electrodes. Experimental results reveal that increasing the strength of the applied electric field or decreasing the inlet flow rate significantly enhances focusing performance. The smallest width of focusing is 17 μm for an applied voltage and an inlet flow rate of 35 V and 0.5 μl/min, respectively. The effect of the inlet flow rate on focusing is insignificant for an applied voltage of 35 V. The proposed design retains the advantages of insulator-based dielectrophoresis with a relatively low required voltage. Additionally, complicated flow controls are unnecessary for the three-dimensional focusing of cells.  相似文献   

Release monitoring of single cells on a microfluidic device coupled with fluorescence microscopy and electrochemistry     

Shi BX  Wang Y  Lam TL  Huang WH  Zhang K  Leung YC  Chan HL 《Biomicrofluidics》2010,4(4):43009

A method for monitoring the biological exocytotic phenomena on a microfluidic system was proposed. A microfluidic device coupled with functionalities of fluorescence imaging and amperometric detection has been developed to enable the real-time monitoring of the exocytotic events. Exocytotic release of single SH-SY5Y neuroblastoma cells was studied. By staining the cells located on integrated microelectrodes with naphthalene-2,3-dicarboxaldehyde, punctuate fluorescence consistent with localization of neurotransmitters stored in vesicles was obtained. The stimulated exocytotic release was successfully observed at the surface of SH-SY5Y cells without refitting the commercial inverted fluorescence microscope. Spatially and temporally resolved exocytotic events from single cells on a microfluidic device were visualized in real time using fluorescence microscopy and were amperometrically recorded by the electrochemical system simultaneously. This coupled technique is simple and is hoped to provide new insights into the mechanisms responsible for the kinetics of exocytosis.  相似文献   

缓解管理者职场压力的思考   总被引：2，自引：1，他引：2  

黄友松  黄崑  欧先涛 《科技管理研究》2005,25(10):156-158

由于管理者压力问题导致很多悲剧发生，给企业甚至整个国民经济都带来了巨大的影响。因此，研究管理者职场压力缓解问题有现实意义。  相似文献   

具有容错特性的反馈控制     

黄献青  瞿坦 《科技通报》1995,11(6):351-355,374

考虑到最优反馈控制在部分执行器（传感器）失效时仍能使系统稳定运行的条件，给出了求解该总理的算法，并用实例作了说明。  相似文献   

我国粮食综合生产能力建设的科技支持效应分析   总被引：1，自引：0，他引：1  

黄中伟  王宇露 《中国科技论坛》2007,(10):100-103,112

在粮食综合生产能力建设中,科技具有基础性效应,优质增产效应,节约效应和产业化效应,未来需从健全多元投入机制;明晰研发目标和方向,突出研发重点;完善推广体系和增强农民科技采用意识四方面促进科技支持效应发挥。  相似文献   

三维散乱点的八叉树建模及程序实现     

胡小红  周旺  黄临平  苏幸 《科技广场》2007,(5):41-43

本文根据三维采样点的离散数据,用八叉树方法和与距离成反比加权法的数据插值方法重构地质体的三维模型,详细地论述了八叉树构模的程序算法,同时开发出基于VC 八叉树构模类,并嵌入电磁资料处理系统软件,为电磁资料处理的三维可视化提供了便利。  相似文献   

身份导向型员工的管理     

刘桂玲  黄顺春 《科技广场》2006,(10):111-112

人岗匹配是人力资源管理的基本原则,传统的观点只注意到了不同传记特点及个性的员工和岗位匹配的结果,而对匹配过程即匹配的关联关注不够,本文首次依据组织中员工与组织发生关联的连接点的不同将组织员工区分为身份导向型员工和岗位导向型员工,并对身份导向型员工的管理进行了探讨,希望有助于提高组织人力资源管理的针对性。  相似文献   

冷杉属一新种——梵净山冷杉     

黄威廉  屠玉麟  杨龙 《中国科学院研究生院学报》1984,22(2):154-155

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高原地区结核病预防之我见     

黄敦武  王珊珊 《西藏科技》2002,(8):37-37

结核病是严重危害人类身体健康的传染病之一,西藏的结核病患病率在全国居于第一位,是制约自治区经济发展的原因之一.虽然采取了一系列重大措施,收到一定的成就.尚需进一步努力,为西部大开发创造良好的环境.  相似文献