查询词典 guard cell

aining at high impedance weak signal measurement,the relations among measuring precision,input impedance and input bias current,the guard technology is applied to design a measuring circuit with guard circuit,adding a guard potential to low-impedance nodes of circuit,the effect of leakage current is reduced.using spice simulation and validates that guard circuit can increase the input impedance of the system and lower the input bias current,the results show that the guard circuit provids a valuable solution for high accuracy measurement of the high impedance weak signal.

摘 要：针对高阻抗微弱信号测量问题，对测量精度与系统输入阻抗、输入偏置电流的关系进行分析，应用保护技术设计了带保护电路的测量电路，将电路中的低阻抗节点加上保护电势，减小漏电流的影响。通过pspice仿真分析，验证保护电路能提高测量系统的输入阻抗和降低输入偏置电流，结果表明保护电路技术能实现对高阻抗微弱信号的高精度测量。

Napping , off-guard , off one's guard , off his guard , off her guard , off your guard

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The regular script sharp gauze production factory attendance "township of the Chinese silk screen", this factory manager the time is engaged in the gauze and silk screen's production and the sale, my factory product specification is complete, quality excellent, including: The stainless steel mesh, the ectrowelding net, the heavy hexagonal network, the ore strainer, the metal net, the round hole net, the security net, the copper screen, the steel plate lattice-work, the ginning network, the safety net, cancel the flowered net, the extra wide net, the window screening, the guard rail net, the road guard rail, the railroad guard rail, the airport guard rail, the factory railing, the garden guard rail, the black cloth and silk, to breed the cage to have, the plastic even net, the galvanization silk and so on each kind of silk screen, widely uses in professions and so on petroleum, chemical industry, building, spinning and weaving, medicine, aviation, astronautics.

楷锐金属丝网制品厂地处&中国丝网之乡&，本厂长期从事金属丝网及丝网的生产和销售，我厂产品规格齐全，质量精良，主要有：不锈钢网、电焊网、重型六角网、矿筛网、金属网片、圆孔网、防盗网、铜网、钢板网、轧花网、安全网、勾花网、宽幅网、窗纱、护栏网、公路护栏、铁路护栏、机场护栏、工厂围栏、花园护栏、黑丝布、养殖笼具、塑料平网、镀锌丝等各种丝网，广泛用于石油、化工、建筑、纺织、医药、航空、航天等行业。

The regular script sharp gauze production factory attendance "township of the Chinese silk screen", this factory manager the time is engaged in the gauze and silk screen's production and the sale, my factory product specification is complete, quality excellent, including: The stainless steel mesh, the ectrowelding net, the heavy hexagonal network, the ore strainer, the metal net, the round hole net, the security net, the copper screen, the steel plate lattice-work, the ginning network, the safety net, cancel the flowered net, the extra wide net, the window screening, the guard rail net, the road guard rail, the railroad guard rail, the airport guard rail, the factory railing, the garden guard rail, the black cloth and silk, to breed the cage to have, the plastic even net, the galvanization silk and so on each kind of silk screen, widely uses in professions and so on petroleum, chemical industry, building, spinning and weaving, medicine, aviation, astronautics.

本产品采用优质低碳钢丝、不锈钢丝焊接而成；分为热镀锌、电镀锌、PVC涂塑、浸塑、特种电焊网片；具有极强的防腐蚀抗氧化等特点。它的用途很广泛，包括：工业、农业、建筑、交通运输、采矿、球场、草坪、养殖等各行业的护栏、装饰、机械防护等楷锐金属丝网制品厂地处&中国丝网之乡&，本厂长期从事金属丝网及丝网的生产和销售，我厂产品规格齐全，质量精良，主要有：不锈钢网、电焊网、重型六角网、矿筛网、金属网片、圆孔网、防盗网、铜网、钢板网、轧花网、安全网、勾花网、宽幅网、窗纱、护栏网、公路护栏、铁路护栏、机场护栏、工厂围栏、花园护栏、黑丝布、养殖笼具、塑料平网、镀锌丝等各种丝网，广泛用于石油、化工、建筑、纺织、医药、航空、航天等行业。

The regular script sharp gauze production factory attendance "township of the Chinese silk screen", this factory manager the time is engaged in the gauze and silk screens production and the sale, my factory product specification is complete, quality excellent, including: The stainless steel mesh, the ectrowelding net, the heavy hexagonal network, the ore strainer, the metal net, the round hole net, the security net, the copper screen, the steel plate lattice-work, the ginning network, the safety net, cancel the flowered net, the extra wide net, the window screening, the guard rail net, the road guard rail, the railroad guard rail, the airport guard rail, the factory railing, the garden guard rail, the black cloth and silk, to breed the cage to have, the plastic even net, the galvanization silk and so on each kind of silk screen, widely uses in professions and so on petroleum, chemical industry, building, spinning and weaving, medicine, aviation, astronautics.

楷锐金属丝网制品厂地处&中国丝网之乡&，本厂长期从事金属丝网及丝网的生产和销售，我厂产品规格齐全，质量精良，主要有：不锈钢网、电焊网、重型六角网、矿筛网、金属网片、圆孔网、防盗网、铜网、钢板网、轧花网、安全网、勾花网、宽幅网、窗纱、护栏网、公路护栏、铁路护栏、机场护栏、工厂围栏、花园护栏、黑丝布、养殖笼具、塑料平网、镀锌丝等各种丝网，广泛用于石油、化工、建筑、纺织、医药、航空、航天等行业。

The result showed that the changes of stoma density ranged from 91~173 unitmm^(-2). Guard cell length ranged from 25.8~32.4 μm. Guard cell width ranged from 18.4~24.2μm. Guard cell width in sports variety was longer than in original variety.

结果表明：叶片气孔密度的变化范围在91~173个／平方公厘，保卫细胞长度变化在25.8~32.4μm之间；保卫细胞宽度变化在18.4~24.2μm之间，芽变品种的保卫细胞的宽度有变长的趋势。

The expression level of metabolitic enzyme (CYP1A1, CYP1B1) and its correlation with cell differentiation /apoptosis were studied as well. The influence of resveratrol in cell cycle was determined with FCM. Results 1 Resveratrol not only suppresses the growth of medulloblastoma cells in a dose and time related fashion but also induces cell differentiation and apoptosis. Resveratrol promotes differention of UW228-1,-2 cells to forward glia, UW228-3 and Med-3 cells to neuron. A treatment of resveratrol in the concentration of 100μM for 48hrs comit most of cells die of apoptosis. 2 Among the four cell lines Fas and Caspase-3 were constantly expessed, whereas FasL was absent irrespective to the drug treatment. 3 ICC, RT-PCR, Western-blot hybridization and EROD enzymatic activity assay demonstrated that expression of CYP1A1 is different after treatment with resveratrol in four cell lines, up-regulated in three UW228 cell lines in a dose dependent manner but down-regulated in Med-3 cells. Suppressive effect of resveratrol on CYP1B1 expression is the same among four medulloblatoma cell lines. 4 Cell cycle distribution of UW228-3 was greatly changed after treatment.

结果：1、白藜芦醇以时间和剂量依赖性方式抑制髓母细胞瘤细胞生长，同时促进细胞的分化和凋亡：白藜芦醇促使UW228-1、-2靶细胞向神经胶质细胞方向成熟分化，UW228-3、Med-3细胞向神经元细胞方向成熟分化，以100μM作用48小时效果显著；2、四个细胞系均有Fas和Caspase-3表达，但无Fas-L基因表达和蛋白活性产生，因此难以形成Fas相关性死亡通路；3、白藜芦醇处理前后CYP1A1基因的表达在各细胞系略有不同：UW228-1，-2，-3三个细胞系白藜芦醇以剂量相关性方式上调CYP1A1的表达，而Med-3细胞系，白藜芦醇却抑制CYP1A1的表达；四个细胞系在白藜芦醇处理后CYP1B1的表达均受到抑制；4、UW228-3细胞系经白藜芦醇作用后细胞周期有较大改变，表现在G0/G1期在整个细胞周期中所占的比例增加，而其它时期则相应减少。

The living cell of L428 cell has experienced from monoclonal to the multi-cell forming process,and presents a big cell around many small clone cell encystation phenomenon.finally,gigantic cells is dead in the life time.3.The cell counting result showed that the proportion of big cell or the H/RS type cell(diameter≥25um)is for(11.6±1.5)%in the L428 group,for(4.6±0.7)%in L428-MVC group and for(13.1±1.3)%in L428-EVC group,respectively.

经持续稀释成单个大细胞、单个小细胞的L428细胞，小细胞可分裂转化成大细胞，大细胞亦可生成小细胞；常见单个大细胞周围出现多个小细胞围绕的现象，在此过程中NF-kB一直持续活化。3。

Rapid cell selected, regional, rows or columns: the mouse click to select the current cell; click the region to be selected first cell, and then drag the mouse to the last cell can be two selected region between; worksheet click the Select All button, you can select the current worksheet; hold down the Ctrl click or drag using the mouse, you can select multiple nonadjacent cells or regional; select a region first cell, hold down the Shift key click on the angle of regional cells, can be between the selected rectangular area; click the line number can be selected corresponding to the entire line; click out the corresponding label can be selected out of the whole; along its line number or a list of drag the mouse, or to select the first row or first column, hold down the Shift key to select the end of the row or column, you can select a number of adjacent rows or columns; first select the first row or first column, and then hold down the Ctrl key to select other non-adjacent rows or columns; If you want to increase or decrease in the activities of the cell area can be selected by holding down the Shift key click the lower right corner of the region the last cell, the cell activities and the click between the cells will become a rectangular area to select a new region.

快速选中单元格、区域、行或列：鼠标单击可以将当前单元格选中；单击待选中区域的第一个单元格，然后拖动鼠标至最后一个单元格，可以将两者之间的区域选中；单击工作表的全选按钮，可以将当前工作表选中；按住 Ctrl 单击或使用鼠标拖动，可以选中不相邻的多个单元格或区域；选中某区域的第一个单元格，按住 Shift 键单击区域对角的单元格，可以将两者之间的矩形区域选中；单击行号可将对应的整行选中；单击列标号可将对应的整列选中；沿行号或列表号拖动鼠标，或者先选中第一行或第一列，按住 Shift 键选中结束行或列，就可以选中相邻的多个行或列；先选中第一行或第一列，然后按住 Ctrl 键选中其他不相邻的行或列；如果您想增加或减少活动区域中的单元格，可以按住 Shift 键单击选中区域右下角的最后一个单元格，活动单元格和所单击的单元格之间的矩形区域就会成为新的选中区域。

Fig.1 SHEE cultured on coverslide, the living cells were growing in single layer with rich cytoplasm, the nuclei were uniform in size with a nucleolus ph ×400 Fig.2 SHEE had a nucleus with ellipse shape, large nucleolus and the cytoplasm contained mitochondria and tonofibrilEM ×10 000 Fig.3 SHEE was spherical in shape, with pseudopods attached on petri dish and abundant villi on cell surface SEM ×5 000 Fig.4 Same as in Fig.3, cell attached on petri dish, appeared stellate or polygonal in shape, with abundant pseudopods and cytoplasmic processes. Protrusive nuclear region in central part of the cell had more micro-villi SEM ×5 000 Fig.5 Chromosomes of SHEE cells belonged to diploidy type Giemsa ×1 000 Fig.6 The SHEE cells of stained in dark brown by Ki67 immunohistochemistry were the proliferative cells Immunohistochemistry ×400 Fig.7 In SHEE cell culture, the nucleus stained red or pink by PI was dead cell, the green nucleus was living cell Fluorescent ×400 Fig.8 The cell labeled by TdT was apoptotic cell in which the chromatin of nucleus condensed in block, a pyknotic nucleus in the upper right conner was seen TdT labeled ×400

图1 SHEE培养在盖坡片上，活细胞单层生长，胞浆较丰富，细胞核大小一致，有核仁×400 图2 SHEE培养细胞细胞核椭圆形，核仁较大，胞浆有较丰富的线粒体和张力原纤维EM ×10 000 图3 SHEE细胞呈球状，有伪足贴壁，表面有密集微绒毛SEM ×5 000 图4 同上细胞贴壁，呈星状或多角形，有丰富伪足和胞浆突，核区隆起有较多微绒毛SEM ×5 000 图5 SHEE细胞染色体仍属二倍体Giemsa染色×1 000 图6 SHEE细胞Ki67免疫组织化学染棕黄色为增殖细胞×400 图7 SHEE培养细胞出现死细胞，胞核和胞浆PI染色呈红色或淡红色，蓝色细胞核为活细胞荧光显微镜×400 图8 细胞TdT标记阳性为凋亡细胞，染色质凝集呈块状，右上角有一固缩细胞核TdT标记×400

It has to be computed by the host for the actual clock rate.

主控制器可以用来计算实际的时钟速率。

Let's see what you got.

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