虚拟企业知识创新发酵模型研究

经济全球化的今天,虚拟企业作为一种新型的企业组织形式,正在成为现代企业发展的一个重要方向,而虚拟企业中知识创新能力是虚拟企业组织得以生存和发展的核心所在。因此,研究虚拟企业中知识创新机制对于提高虚拟企业的竞争力和促进经济的可持续发展具有重要的理论意义和现实意义。本文首先借助仿生学的相关理论,在基于知识的原生性、遗传变异性、群合性、媒合性的假设基础上,建立知识创新的知识发酵模型;然后,对虚拟企业中基于知识发酵模型的知识创新过程从个人、成员企业、虚拟企业3个维度进行了详细的分析;进一步提出了后续尚需研究的方向与内容。     

Evaluation of organ distribution of microcystins in the freshwater phytoplanktivorous fish <Emphasis Type="Italic">Hypophthalmichthys molitrix</Emphasis>

To evaluate the public health risk of exposure to microcystins in fish food in China, the distribution pattem of microcystin-LR and microcystin-RR in various organs （liver, intestine, kidney, muscle and lipid） of the dominant freshwater phytoplanktivorous fish Hypophthalmichthys molitrix in Hangzhou, China＇s Tiesha River was investigated with the method of HPLC-ESI-MS analysis. The distribution of microcystins was different in the fish organs and the major total microcystins （microcystin-LR and microcystin-RR） were present in the intestines （6.49 μg/g fresh weight）, followed by the livers （4.52 μg/g fresh weight） and the muscles （2.86 μg/g fresh weight）. Microcystins were detected in kidneys （1.35 μg/g fresh weight）, but not detected in lipid. The results suggested that the mean daily intake from fish was 0.03 μg/kg body weight which was very close to the recommended WHO tolerable daily intake （TDI） level of 0.04μg/kg body weight per day, and local people were wamed they may have health risk if they consumed fish from the river.     

教育哲学如何关怀生活？

教育哲学最为关心的就是人的生活及教育实践,它的根本目的与方式是,通过思想为生活在一起的公民思辨塑造灵魂(德性)和社会正义的教育秩序的理想、目的或原则,这是教育哲学作为实践哲学的根本内涵.教育哲学无法直接去"过"生活,而只能是"思"生活或"言"生活.教育哲学的可能性在于能够提出教育和生活的基础问题,并在思想的深处反思造成现实困境与问题的价值、观念或意见.为此,教育哲学探寻涉及教育的理性真理,形而上地洞察教育存在的根本目的、价值和基础原则.教育哲学只有超越各种意见到达关于教育存在之根本秩序的理解,才能为生活及教育提供有意义的思想理论.如果教育哲学放弃或遗忘根基性的形而上追问,关于教育的形形色色的错误意见就无法得以辩明,教育哲学就会真正缺乏目的感、价值感和实践感,它自身也就真正疏离了生活及教育.     

NONLINEAR OPTICS IN QUANTUM WIRES

ＮＯＮＬＩＮＥＡＲＯＰＴＩＣＳＩＮＱＵＡＮＴＵＭＷＩＲＥＳ￥ＣｈｅｎＲｅｉ－ｍｉｎ（ＤｅｐａｒｔｍｅｎｔｏｆＰｈｙｓｉｃｓａｎｄＡｓｔｒｏｎｏｍｙ，ＳｔａｔｅＵｎｉｖｅｒｓｉｔｙｏｆＮｅｗＹｏｒｋａｔＢｕｆｆａｌｏＢｕｆｆａｌｏ，ＮｅｗＹｏｒｋ１４２...     

论反向工程、技术创新与知识产权保护的协同发展

反向工程是技术学习的关键路径,它与知识产权保护之间存在着尚需调和的矛盾;技术创新的发展可以促进反向工程与知识产权保护的融合,后两者的融合又有利于技术创新的推进;建立创新导向和竞合机制是三者协同发展的关键。     

THERMODYNAMICS OF MELTING FOR METALS

ＴＨＥＲＭＯＤＹＮＡＭＩＣＳＯＦＭＥＬＴＩＮＧＦＯＲＭＥＴＡＬＳ￥ＨｏｎｇＹｏｎｇ－ｙａｎ（ＩｎｓｔｉｔｕｔｅｏｆＳｏｌｉｄＳｔａｔｅＰｈｙｓｉｃｓ，ＡｃａｄｅｍｉａＳｉｎｉｃａ，Ｈｅｆｅｉ２３００２６）ＷｕＦｅｎｇ－ｍｉｎ（ＺｈｅｊｉａｎｇＵｎｉｖ...     

SECI过程与知识发酵模型

利用仿生学的知识发酵模型,剖析组织学习和知识创新的核心环节——SECI过程,揭示了构成SECI过程的各个要素。通过这些要素可以更加清楚地认识到SECI过程的内部运行情况。组织可以利用这些要素,加强自身的知识管理和知识创新活动,进而加强自己的核心竞争力。     

教师的美德

师道不存则师德难继,师业未精则师职难尽。现时学校教育重实作而轻理论、重升学率而轻师生德性养成的状况,已令越来越多有识之士深为忧虑。本期摘选、集纳了一些近段时间的出色的教育研究文章——无系统以求点到,无关联而求精要,集英取华以飨读者,而望有助于教师之专业结构系统优化。     

Evaluating the effect of midpalatal corticotomy-assisted rapid maxillary expansion on the upper airway in young adults using computational fluid dynamics

Midpalatal corticotomy-assisted rapid maxillary expansion(MCRME)is a minimally invasive treatment of maxillary transverse deficiency(MTD)in young adults.However,the effect of MCRME on respiratory function still needs to be determined.In this study,we evaluated the changes in maxillary morphology and the upper airway following MCRME using computational fluid dynamics(CFD).Twenty patients with MTD(8 males,12 females;mean age 20.55 years)had cone-beam computed tomography(CBCT)images taken before and after MCRME.The CBCT data were used to construct a threedimensional(3 D)upper airway model.The upper airway flow characteristics were simulated using CFD,and measurements were made based on the CBCT images and CFD.The results showed that the widths of the palatal bone and nasal cavity,and the intermolar width were increased significantly after MCRME.The volume of the nasal cavity and nasopharynx increased significantly,while there were no obvious changes in the volumes of the oropharynx and hypopharynx.CFD simulation of the upper airway showed that the pressure drop and maximum velocity of the upper airway decreased significantly after treatment.Our results suggest that in these young adults with MTD,increasing the maxillary width,upper airway volume,and quantity of airflow by MCRME substantially improved upper airway ventilation.