查询词典 fluid

Objective To study the toxic effect of body fluid of Ascaris lumbricoides on human intestinal epithelial cells (HCT-8 cells) and how the ABF concentration and inducing time could be related to the toxicity.

目的 探讨人蛔虫体腔液(Ascaris body fluid， ABF)对人肠上皮细胞株(HCT-8)的毒性作用及作用浓度和时间的关系。

Objective: To investigate, 1 whether the body fluid of Ascaris lumbricoides could induce apoptosis of human alveolar epithelial cells (A549 cells) in vitro, and if there would be a possible relationship of ABF concentration or inducing time with the extent of apoptosis; 2 if the expression of bcl-2/bax would involve in and how it changes during the inducement of the apoptosis of A549 cells.

目的：用人蛔虫体腔液(Ascaris body fluid，简称ABF)体外诱导人肺上皮细胞株(A549)，观察其是否能够诱导靶细胞凋亡及凋亡与ABF浓度和作用时间的相互关系；运用RT-PCR方法检测靶细胞诱导过程中bcl-2／bax基因的表达变化，探讨其凋亡与基因表达的相互关系。

Object In this study , we evaluated the tumor necrosis factor-α levels and lactate dehydrogenase of cerebrospinal fluid in patients with meningitis.

目的 研究肿瘤坏死因子-α(tumor necrosis factor-alpha，TNF-α)和乳酸脱氢酶(lactate dehydrogenase，LDH)在脑膜炎患者脑脊液(cerebrospinal fluid，CSF)中的含量，探讨它们在脑膜炎诊断中的临床意义。

Such results are in agreement with those of the study by Upadya et al., who showed a link between positive cumulative fluid balance and weaning failure.

预测脱机失败的最佳BNP域值是275 pg/ml，此结果与Upadya等的研究一致，Upadya等发现了液体正平衡（positive cumulative fluid balance）和脱机失败存在关系。

In this paper, the characteristics of supercritical fluid and principle of supercritical fluid extraction, gas anti-solvent, rapid expand supercritical solution were introduced. The development of supercritical fluid recystallization technology used in manipulating ultrafine explosives desired and SFE developed for demilitarization of energetic material and RESS technology used in coating of energetic material were reviewed.

摘 要：在阐述了超临界流体的性质和超临界萃取(Supercritical Fluid Extraction， SFE)、超临界流体溶液快速膨胀结晶（Rapid Expand Supercritical Solution， RESS）和气体反溶剂结晶（Gas Anti-solvent， GAS）过程原理的基础上，重点介绍了近年来超临界流体技术在含能材料细化，废弃炸药回收与利用，炸药包覆等方面所取得的研究进展。

In this thesis, we will investigate on reliability and process integration of low dirlrctric constant material MSZ and Supercritical CO2 fluid.

本论文研究低介电常数材料MSZ薄膜与超临界二氧化碳流体(Supercritical CO2 fluid)在积体电路制程整合的技术和可靠性分析。

In previous studies, Cyclooxygenase-2(COX-2) is believed to be linked with inflammations and tumors. But in recent reports, COX-2 is found to play important roles in osteoblastic mechanotransduction and in bone remodification and resorptions in some ways. It was found that mechanical stretches, such as hydrostatic forces and pulsating fluid flow, could increase the expressions of COX-2 mRNA and then prostaglandins, and activate many signal pathways in osteoblasts.

环氧合酶-2(cyclooxygenase-2，COX-2)以往被认为与炎症、肿瘤等有密切关系，近年研究发现它在骨骼重建、骨质吸收以及成骨细胞力学信号转导中发挥着重要作用，主要表现为机械牵拉、流体力、节律性液体流(pulsating fluid flow，PFF)等机械刺激均能引起成骨细胞COX-2高水平表达，进而引起前列腺素(prostaglandins，PGs)量的增加，激活成骨细胞内多条信号传导通路。

The BMSCs were divided into six groups after repeatedly passaged: A,the BMSCs were cultured with conventional culture fluid(DMEM culture fluid+20%fetal bovine serum+2 mmol/L aminoglutaric acid amine) all the time;B,the BMSCs were cultured with conventional culture fluid+HGF(25ng/ml)+dexamethasone10~(-7M;C(HGF and Zuoguiwan induced group), the BMSCs were cultured with conventional culture fluid+ HGF(25ng/ml)+ dexamethasone10~(-7M+ 10%Zuoguiwan drug serum;D(conditioned medium and contrast serum induced group), the BMSCs were cultured with conventional culture fluid+50 % conditioned medium+10 % normal rat serum;E(conditioned medium and Bazhentang drug serum induced group), the BMSCs were cultured with conventional culture fluid+50 % conditioned medium+10 % Bazhentang drug serum;F(conditioned medium and Zuoguiwan drug serum induced group), the BMSCs were cultured with conventional culture fluid+50 % conditioned medium+10% Zuoguiwan drug serum.

常规培养组始终使用常规培养液(DMEM培养液+体积分数20％胎牛血清+2mmol／L谷氨酸胺)进行培养；HGF诱导组以常规培养液+促肝细胞生长因子(HGF，25ng／ml)和地塞米松10~(-7M进行培养；HGF加左归丸组以常规培养液+促肝细胞生长因子(HGF，25ng／ml)和地塞米松10~(-7／M+10％的左归丸含药血清进行培养；条件培养液加对照血清组以常规培养液+50％的条件培养液+10％正常大鼠血清进行培养；条件培养液加八珍汤组以常规培养液+50％的条件培养液+10％八珍汤含药血清进行培养；条件培养液加左归丸组以常规培养液+50％的条件培养液+10％左归丸含药血清进行培养。

The second part was to test the appearance, ingredient analysis, surface potential, thermal conduction properties, and magnetism of the nano composite fluid prepared from the parameters. The experiment found that unoxidized particles, Ag, Cu, Fe, and Ni appeared round. If combined with oxygen in water as oxides, the nano particles would grow toward certain directions. In copper/iron nano composite fluid, FeO appeared cubic, Cu2O appeared coniferous. In silver/iron nano composite fluid, FeO was polygonal. In dielectric potential detection, the nano composite fluid was likely to aggregate and deposit, except for silver/iron set. In other sets, the pH of silver/cobalt nano composite fluid was 7, surface potential was 21.21mV; the pH for silver/nickel nano composite fluid was 6.5, surface potential was 21.04mV; the pH for copper/iron nano composite fluid was 7, surface potential was -30mV. The fluid particles of the three sets could all maintain suspension of 2 weeks or more. For thermal conduction, the silver/nickel, nano composite fluid showed the best thermal conduction. Under temperature of 30℃ fluid weight conduction of 0.4%, the thermal conduction increase was 26%. For magnetic detection, except for silver/iron nano composite fluid, the nano particles of other three sets were paramagnetic, and all four sets were soft magnetic nano composite materials.

第二部分。将由较佳制备参数所产出的奈米复合流体，进行形貌外观、成分分析、表面电位及热传导性质实验与磁性检测；在奈米颗粒的形貌部分，经实验发现Ag、Cu、Fe、Ni等未氧化的颗粒皆呈现近似圆形，而若与水中的氧结合形成氧化物，奈米颗粒则会朝特定方向成长，在铜/铁奈米复合流体中FeO为四方体结构、Cu2O的颗粒是针叶状，在银/铁奈米复合流体中FeO则为多边形结构；而介面电位检测方面，结果显示经本制程所产出的奈米复合流体除银/铁奈米复合流体这一组较容易聚集沉淀外，其他三组中银/钴奈米复合流体的pH值为7，表面电位为21.21mV，银/镍奈米复合流体的pH值6.5表面电位为21.04mV而铜/铁奈米复合流体的pH值为7时表面电位约在-30mV，且此三组流体颗粒皆能维持悬浮性2周以上，悬浮性较佳；热传导实验部分，四组奈米复合流体中以银/镍奈米复合流体在增进热传上效果最佳，在温度30℃及流体重量浓度0.4﹪条件下热传导系数增进达26﹪；磁检测方面，除了银/铁奈米复合流体外，其他三组奈米颗粒皆属顺磁性，且这四组奈米复合材料都是属软磁性。

For frequency information fluid identification technology:the basic theory of fluid identification based on frequency information has been introduced,for inner and external factor affecting frequency,some steps have been proposed to attain reserved amplitude and frequency analysis data with high resolution,high S/N ratio;through the comparison of time-frequency analysis method, the high accuracy time-frequency analysis method has been selected to extract time-frequency attributes;the analysis method flow of common single frequency fluid identification has been proposed,according to the data of full frequency band,several anomaly zone modes of common single frequency attribute have segregated; incorporating converted wave and compression wave,fluid identification method based on PS wave combined time-frequency analysis has been proposed;the AVO property of various fluid type in frequency domain has been studied;the generalized fourier analysis method,Proni absorption filter has been introduced,and researched for anti-noise and for the seismic processing interpretation flow.The above technology have been applied to fluid identification of organic reef in WBT area in the east of Sichuan and fluid identification of clastic rock in GUANGAN area in the middle of Sichuan,the results show that the above methods are effective.

基于频率信息的流体识别技术方面：介绍了利用频率信息流体识别的基本理论，针对影响频率的内、外在因素，提出一些针对措施，以获得高分辨率、高信噪比的保幅、保频分析数据；通过时频分析方法的比较，选取高精度的时频分析方法提取时频属性；提出共单频属性进行流体识别的分析方法流程，结合全频带数据，分出几种共单频属性异常带模式；联合转换波资料和纵波资料，提出基于纵横波联合时频分析进行流体识别方法；研究了频率域内不同流体类型AVO现象；引进一种广义傅立叶分析方法：Proni吸收滤波，研究其抗噪性以及进行地震处理解释的流程；将这些技术应用川东北五百梯区块进行生物礁储层流体的识别和川中广安陆相碎屑岩的流体识别，取得较好的效果。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。