“体味”：中国饮馔遗产之微缩景观

中国饮食传统是一笔丰盛的文化遗产,这已为共识;然而,大多数人都只是将其视作果腹、生计、养身、烹饪的事情、作业,将其置于＂俗文化＂范畴,是大谬也。事实上,饮食文化遗产不独事关国家大体,也是关乎世界观的学问,我们可视之为哲学的微缩景观,而＂体味＂不啻为一个身体力行的视角,可备讨论。文章以《尚书·洪范》为引,以＂体味＂入微,讨论我国传统饮食文化遗产中的相关问题,诸如＂体味＂的本义和衍义,分类以及反哺等,姑作抛砖引玉。     

外周动脉阻塞性疾病运动受限的骨骼肌功能改变机制

为了探讨外周动脉疾病运动受限的原因。从血流动力学的改变、气体交换率的下降、骨骼肌线粒体功能失调所致的生化改变、氧化压力以及骨骼肌类型的改变五个角度出发阐述了外周动脉疾病患者运动能力受限的具体改变机制,为今后的治疗方案对骨骼肌功能的改善提供依据。     

磨削加工中砂轮的有级恒线速控制

介绍一种在实际使用中非常有效的有级恒线速控制方法 ,该方法对于只有手动进给修整装置的磨床也能实现砂轮的线速度控制 ,以保证磨削加工的表面质量与加工效率     

Theoretical Study of the Peripheral Twist Extent Length in Rotor Spinning

The mathematical model of peripheral twist extent(PTE) length was set up by studying the kinematics anddynamics of the yarn in rotor groove. The value of PTElength was calculated by using numerical method, andthe factors affecting the PTE length were also discussed.The results show that the theoretical predicted value ofPTE length seems to be consistent with the measured val-ue. The yarn linear density and rotor speed have re-markable effects on PTE length. The parameters includ-     

基于工件网格划分的周铣加工表面形貌仿真算法

运用图形矩阵变换原理和矢量运算法则，推导出了立铣刀周铣过程中刀具切削丸上任意点相对于工件运动的轨迹方程，在此基础上构造出一种基于工件网格划分的三维表面形貌仿真算法，并给出了相应的仿真算例，仿真结果表明，该算法可完全模拟铣削过程，具有运算速度快，仿真精度高和便于出图等优点。     

计算机及其外部设备的防信息泄漏技术

计算机中的电磁泄漏严重威胁系统的安全,必须采取有效的防泄漏措施.介绍了计算机中信息的泄漏方式,分析了TEMPEST技术研究的内容,探讨了利用噪声干扰源,采用屏蔽技术、"红"/"黑"隔离技术、滤波技术和布线与元器件选择等计算机防泄漏技术,以及键盘、软盘驱动器、CRT显示器和打印机等外部设备的防泄漏技术,探讨了发展我国TEMPEST技术的5项措施.     

防止高拱坝坝踵开裂和屈服的工程措施研究

对防止高拱坝坝踵开裂和屈服的两种常用工程措施周边缝和底缝进行研究．研究中坝体混凝土、缝和坝基材料采用不同的非线性材料模型．结合292m高的小湾拱坝对设缝前后的坝体位移场、应力场、开裂区和屈服区进行分析研究,重点讨论设缝对坝体屈服和开裂的影响．对小湾拱坝的研究结果表明：(a)未设缝时,在坝基附近的垫座内出现较大范围的开裂和屈服;设置周边缝时,垫座内的开裂和屈服明显减少;设置底缝时,坝踵附近的开裂和屈服明显减少,但在设缝两侧,尤其是两侧缝端附近,垫座内的屈服现象比无缝情况时更严重．(b)小湾拱坝设周边缝的效果要优于设底缝,设缝范围可限制在缝面开裂的范围内．     

Silurian to Devonian foreland basin in the south edge of Tarim Basin

Based on the theory of plate tectonics, combin-ing with the isotopic dating of ophiolite, igneous and volcan-ics, geochemical test, rare earth element analyze and seismicinterpretation, this paper studies the pre-Carboniferous tec-tonics and sedimentary formation of the south edge of theTarim Basin and proves that there exists the Kunlun Oceanunder tensional tectonics during the Sinian and Cambrian inthe south edge of the Tarim Plate. After that, due to the colli-sion orogenesis, there formed the peripheral foreland basinin the south edge of Tarim. The Upper Silurian and Devo-nian molasses sedimentary system superposed on the Sinianand Middle Silurian passive margin flysch sedimentary sys-tem and formed the bivariate structure of the foreland basin.And at the same time, based on the field geology and seismicinterpretation, we have identified that the formation of theSilurian and Devonian have the character of half depositwhich shows thick in the south area and thin in the north,and the pre-Carboniferous thrust compression tectonics re-mained in the foreland thrust belt, which further demon-strates that there existed the Silurian and Devonian periph-eral foreland basin on the south edge of the Tarim Basin.     

Protein P37 of mycoplasma hyorhinis induces secretion of TNF-α from human peripheral blood mononuclear cells

High mycoplasmal infection ratio in gastric cancer tissues suggests a possible association between my-coplasma infection and tumorigenesis.Because TNF-α plays an important role in carcinogenesis caused by microbes in-fection and P37 is a major immunogen of mycoplasma hy-orhinis(M.hyor.),investigating whether P37 could induce expression and secretion of TNF-α will be very significant fo elucidate the possible molecular mechanism of gastric car-cinogenesis involved with M.hyor.At the present study,we cloned full gene of p37 by PCR and mutated the 7 codes of TGA into TGG firstly,then expressed the P37 protein suc-cessfully with pGEX-4T-1 vector in E.coli,which was veri-fied with Western bolt.By RT-PCR and sensitive L929 cell toxic assay,we found that P37 protein could induce expres-sion and secretion of TNF-α from human peripheral blood mononuclear cells,and the inducing activity of P37 could be dramatically blocked by McAb PD4.These results suggest that the induction of TNF-α secretion by P37 probably plays an importan role in diseases caused by M.hyor.infection and needs to be further investigated.     

Therapeutic angiogenesis induced by human hepatocyte growth factor gene in hindlimb ischemia of dogs

A preclinical study of treating peripheral srtery occlusive disease(PAD) was performed by using a hepatocyte growth factor(HGF) gene-expressing vector,plasmid pUDKH,in a dog model with complete ischemia of one hindlimb.After ligation of femoral artery of one hindlimb,pUDKH was transferred directly into the ischemic limb muscles.The angiogenic activity of the plasmid pUDKH was evaluated.On D 30 after injecting once of pUDKH at differ-ent doses into local muscles immediately after operation,the degree of augmentation of collateral vessel formation was significantly greater than that treated by blank vector.In addition,the blood flow rate of femoral artery in dogs treated with pUDKH was recovered on D90,while the folw rate was only 1/5 tp 1/3 in control dogs.The pulse amplitude of pUDKH-treated dogs was recovered on D90,but it was hardly detectable in most of the control dogs.The side effects of intramuscular transfection of pUDKH were also investi-gated,and no significant positive change was found.It is suggested that angiogenesis induced by HGF gene has the potential for clincal use in the treatment of peripheral arte-rial diseases.