刍议大众体育健身市场

我国大众体育健身,在市场商业化的运作过程中对象的显贵性,消费的超前性、奢侈性,使大众体育健身市场所指对的全民健康和精神文明的建设,形成了某种非美状态的不平衡、不和谐。本文在表述我国社会主义初级阶段现状与特征的基础上,提出了我国大众体育健身场所作为卖方市场,应时刻注视大众工薪群体可以接受的健身消费程度以及立足现实,把体育健身市场的社会目标定在为建设我国现代化强国而造就人、美化人的境界上。     

Design and integration of an all-in-one biomicrofluidic chip

We demonstrate a highly integrated microfluidic chip with the function of DNA amplification. The integrated chip combines giant electrorheological-fluid actuated micromixer and micropump with a microheater array, all formed using soft lithography. Internal functional components are based on polydimethylsiloxane (PDMS) and silver∕carbon black-PDMS composites. The system has the advantages of small size with a high degree of integration, high polymerase chain reaction efficiency, digital control and simple fabrication at low cost. This integration approach shows promise for a broad range of applications in chemical synthesis and biological sensing∕analysis, as different components can be combined to target desired functionalities, with flexible designs of different microchips easily realizable through soft lithography.     

知识管理在航空新产品开发中的应用研究/FONT

回顾了国内外关于知识管理理论及知识管理与新产品开发绩效关系方面的研究成果,提出了航空新产品开发中组织要素、知识管理活动和新产品开发绩效之间关系的概念模型和理论假设,基于对航空企业和科研院所的问卷调查数据进行了定量的实证研究。结果表明：知识管理活动的各维度对新产品开发绩效有显著影响;组织结构、组织文化对知识管理活动有显著影响,但IT工具对知识管理活动的影响则不显著,限制IT工具发挥作用的主要原因是其使用的不便利性;组织要素的各维度对新产品开发绩效有显著影响。这些研究结果可以为航空企业或科研院所在推进知识管理时应采取的策略提供有益的参考。     

基于语音识别的汉语发音自动评分系统的初步设计

语音识别技术的发展使得人与计算机的交互成为可能,文章结合了语音识别的相关技术,提出了在对外汉语教学领域中,对汉语自动发音水平评价系统的设计,详细地介绍了系统的结构以及所使用的关键技术。     

CO催化氧化的实验与Monte Carlo模拟

主要对CO在Pt表面催化氧化反应的实验做了具体描述,介绍以ZGB模型为基础的MC模拟方法,得到一系列与实验较接近的模拟结果.在模拟中,重点考察重构表面的诱导相变和反应物的脱附等因素对反应的影响.     

Adsorption of methylene blue onto activated carbon produced from tea (Camellia sinensis L.) seed shells: kinetics, equilibrium, and thermodynamics studies

Tea (Camellia sinensis L.) seed shells, the main byproduct of the manufacture of tea seed oil, were used as precursors for the preparation of tea activated carbon (TAC) in the present study. A high yield (44.1%) of TAC was obtained from tea seed shells via a one-step chemical method using ZnCl₂ as an agent. The Brunauer-Emmett-Teller (BET) surface area and the total pore volumes of the obtained TAC were found to be 1 530.67 mg²/g and 0.782 6 cm³/g, respectively. The equilibrium adsorption results were complied with Langmuir isotherm model and its maximum monolayer adsorption capacity was 324.7 mg/g for methylene blue. Adsorption kinetics studies indicated that the pseudo-second-order model yielded the best fit for the kinetic data. An intraparticle diffusion model suggested that the intraparticle diffusion was not the only rate-controlling step. Thermodynamics studies revealed the spontaneous and exothermic nature of the sorption process. These results indicate that tea seed shells could be utilized as a renewable resource to develop activated carbon which is a potential adsorbent for methylene blue.     

Focusing-enhanced mixing in microfluidic channels

A focusing-based microfluidic mixer was studied. The micromixer utilizes the focusing process required for cytometry to reduce the diffusion distance of molecules to be mixed in order to facilitate the passive diffusion-controlled mixing process. It was found that both the high flow rate ratio of the sheath flow to the flows to be mixed and the low flow rate of the mixing fluids resulted in the short mixing length required within the microfluidic channel. It was shown that a complete mixing was achieved within a distance of 4 mm in the micromixer for the focused mixing fluids at a flow rate of 2 μl∕min and a flow rate ratio of the sheath flow to the flows to be mixed at 4:1. The mixer described here is simple and can be easily fabricated and controlled.     

高强度的环境规制能够促进国内大气科技创新吗？——以〖SO〗_2排放控制技术为例

从理论上来说,波特弱假说涉及双重外部性问题,即大气污染的负外部性和技术创新的正外部性,环境规制和知识产权保护合力才能予以切实彻底解决,而后者并没有得到普遍重视。本文认为,波特弱假说需要考虑知识产权保护强度。以SO_2排放控制技术为例,本文运采用2000-2013年省际省份面板数据,结合固定效应模型进行实证研究检验了知识产权保护对于波特弱假说的作用。结果发现,当知识产权保护较弱时,环境规制对大气科技创新具有呈现负向影响;。只有当知识产权保护较强时力度超过一定阈值时,环境规制才会对大气科技创新产生正向影响,波特弱假说成立。此外,环境规制和知识产权保护影响大气科技创新的交叉效应主要出现在企业,而非科研院所和个人,创新主体存在明显的差异性。     

企业技术创新在世界科技强国建设中的地位和作用

2016年5月30日,习近平总书记作了"为建设世界科技强国而奋斗"的重要讲话,在新中国成立100年时使我国成为世界科技强国。之后,引起社会各界热烈讨论,为了实现这一战略目标,企业必须把技术创新放在长远发展的头等重要位置。在发展过程中,腾讯公司始终把技术创新放在第一位,并采取了一系列举措,取得了一定成效。文章最后从企业角度提出了加快世界科技强国建设的几点建议。     

项目型组织成员知识转移动机实证研究—与组织情境的跨层次作用

知识是项目型组织(project-based organizations,PBOs)持续发展的关键资源,其有效地转移和共享不但有助于项目的成功,更有利于PBOs的长远发展。本研究运用多层线性模型,通过采集和分析来自中国建筑第*工程局有限公司的480个项目型组织样本问卷数据,探讨组织情景对项目型组织成员知识转移动机和知识转移效果的跨层次影响。结果表明:知识转移动机是决定知识转移行为的关键所在;组织情境差异化影响成员的知识转移动机和知识转移效果。这一发现揭示了组织情景影响成员知识动机和知识转移效果的内在机理,拓展了主流文献的相关研究,并为项目型组织知识管理实践提供借鉴。