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排序方式: 共有759条查询结果,搜索用时 15 毫秒
61.
Maxim Integrated Products Larry Burgess 《世界电子元器件》2006,(11):68-70
在遥控钥匙门禁(RKE)系统中,可以用钥匙扣上的发射器从远端开锁,发射器将无线编码发送到汽车内的接收机。遥控钥匙门禁(RKE)系统通常工作在ISM频段,包括315MHz和433.92MHz。随着远程启动和带校验的RKE的出现,设计 相似文献
62.
R I Iakubovskaia N I Kazachkina T A Karmakova E R Nemtsova M D Korosteleva S K Aleksander G I Avdeev E E Sorkin A Iu Baryshnikov O V Korotkova 《Eksperimental?nai?a onkologii?a》1990,12(4):61-65
The glycoprotein with the molecular weight of 82,500 D (Ag3) was extracted from the native membranes of fatty globules of human milk and was purified by isoelectrofocusing. Polyclonal antisera (PCA) as well as monoclonal antibodies (MoAb)-ICO-21, ICO-22, ICO-26, ICO-29 against this membrane antigen were produced. The localization of the antigen in the human normal and malignant tissues was tested by the immunochemical technique. Apical staining of the Ag3 was in the acinus and duct cells of the normal breast. Weak staining with the antibodies to Ag3 was revealed in the epithelium cells of ovaries, bronchi, kidney tubules and uterine tubes. The far more pronounced staining of the Ag3 with PCA and MCA was observed in the cell cytoplasma both in the primary and metastatic breast and ovarian tumours. The specificity of the MoAb to Ags suggests that they will be useful in the diagnosis of the malignant disease of the breast and ovary. 相似文献
63.
V. V. Avdeev E. T. Il'in S. G. Ionov G. V. Bozhko O. V. Gusak V. D. Prodan 《Chemical and Petroleum Engineering》2005,41(9-10):485-491
Research data for five types of gland packings are reported. Relationships are shown with due regard for the number of loadings and the number of packing layers: relative deformation of the packing due to unit load, unit load on the packing due to its relative deformation, and compression and recovery modulus arising from relative deformation of the packing. 相似文献
64.
Martensitic Phase Transformation and Deformation Behavior of Fe–Mn–C–Al Twinning‐Induced Plasticity Steel during High‐Pressure Torsion 下载免费PDF全文
65.
We have successfully prepared mono- and bi-functionalized multiwall carbon nanotubes (MWCNT) with thiophene, amine and thiophene-amine groups. The dispersion of nanotubes has been enhanced and stable optimized dispersions in organic solvents were obtained. These functionalized nanotubes have been successfully incorporated into bulk heterojunction (BHJ) organic photovoltaic (OPV) cells with a poly (3-hexyl thiophene) (P3HT) and [6, 6]-phenyl-C(61)-butyric acid methyl ester (PCBM) photoactive blended layer. The incorporation of MWCNT with different functional groups, in the active layer, results in different cell performance with respect to a reference cell. A maximum power conversion efficiency of 2.5% is achieved with the inclusion of thiophene functionalized nanotubes. This improvement in the device performance is attributed to an extension of the exciton dissociation volume and charge transport properties through the nanotube percolation network in P3HT/CNT, PCBM/CNT or both phases. This is believed to be due to more efficient dispersion of the functionalized nanotubes within the photoactive composite layer. 相似文献
66.
The quantification of a virus plays an important role in vaccine development, clinical diagnostics, and environmental contamination assays. In all these cases, it is essential to calculate the concentration or number of intact virus particles (ivp) and estimate the degree of degradation and contamination of virus samples. In this work, we propose a cost-efficient, robust method for the quantification and characterization of intact viruses based on capillary zone electrophoresis. This separation method is demonstrated on vaccinia virus (VV) with oncolytic properties. After virus sample preparation, the solution contains intact VV as well as broken viruses and residual DNA from the host cell used for preparation. Regulatory requirements limit the amount of the host cell DNA that can be present in vaccines or human therapeutics. We apply capillary electrophoresis to separate intact virus particles and the residual DNA and to measure the level of virus contamination with DNA impurities. Intercalating YOYO-1 dye is used to detect the encapsulated and free DNA by laser-induced fluorescence. After soft lysis of VV with proteinase K, all encapsulated DNA is dissolved to the free DNA. The change in peak areas and a DNA calibration curve help determine the initial concentration of intact viruses. This viral quantitative capillary electrophoresis (Viral qCE) is able to quantify the oncolytic vaccinia virus in the range of 10(6) to 10(12) ivp/mL. 相似文献
67.
We have studied the surface modification of carbonized carbon fibers with nitric acid solutions, compared the effects of 60
and 98% HNO3, and examined the influence of the anodic polarization of the fiber for surface functionalization. Unmodified and surface-modified
carbon fibers have been characterized by a variety of physicochemical techniques. 相似文献
68.
A. A. Avdeev 《Atomic Energy》1991,71(2):677-682
All-Union Scientific-Research Institute of Atomic Materials (VNIIAM). Translated from Atomnaya Énergiya, Vol. 71, No. 2, pp. 162–165, August, 1991. 相似文献
69.
Maxim Lebedev Jun Akedo Atsushi Iwata Satoshi Sugimoto Kouichiro Inomata 《Journal of the American Ceramic Society》2004,87(9):1621-1624
This paper describes the magnetic properties of NiZnCu ferrite film deposited at room temperature by an aerosol deposition method (ADM). The thickness of the film was 6 μm and the deposition rate was estimated as 2 μm/min. The microstructure of as-deposited at room temperature films consists of randomly oriented nanocrystallites with a size of 20 nm. As-deposited and annealed films exhibited the following magnetic properties: intensity of magnetization M s = 0.147 T (117 emu/cm3 ), coercivity H c = 40.58 kA/m (510 Oe); and M s = 0.3 T (250 emu/cm3 ), H c = 14.95 kA/m (188 Oe), respectively. 相似文献
70.