查询词典 twenty-four hours

By means of stereotaxis instrument, 1×105 BMSCs (2 μL) of passage 3 stained with Hochest33324 for 24 hours were transplanted into the left hippocampus at 24 hours, 72 hours and 7 day after induction of HIBD in the corresponding groups.

在脑立体定位仪下，24 h，72 h，7 d细胞移植组分别于造模后对应时间点，将体外培养3~5代且经Hochest33324标记24 h的鼠骨髓基质细胞2 μL脑内移植于左侧海马，约105个细胞。

The half life of xanthene derivatives in water is between 5 hours to 7 hours, and on the surface of silica TLC plates is between 1 hour to 2 hours.

呫吨类化合物的光降解规律为：在水溶液中的光降解是假一级动力学化学反应，半衰期在5小时到7小时之间，属于同一个数量级。

Preparation of the cathode includes:shaping under the press of 40Mpa, sintering at 550℃for 1 hour and at 900℃for 8 hours and threading with molybdenum bar; Considering the literatures we choose CaCl2 as salt for preparation titanium. Pretreatment of salt is for 1 hour at 100℃and for 2 hours at 300℃. Partial pressure of oxygen which need lower than 5.11×10-7Pa to reduct titanium oxides and hygroscopic property of salt need a sealed equipment to electrolyse. And finally successfully designed a satisfied one and the results show that the equipment can be satisfied the requirment of the experiment. Flow of the inert gas is 1.5L/min, the voltage is 2.8 V, temperature is 850℃and time is 2 hours during pre-electrolysis. Flow of the inert gas is 0.2L/min, the voltage is 3.1 V, temperature is 900℃and time changes with the mass of TiO2 during electrolysis, namely the greater need the longer time; To eliminate influence of salt and other impurities, the products need to wash with distilled water and dilute chlorhydric acid , then wash with dilute hydrochloric acid under supersonic wave assistant. Finally, electrometical properties of the electrolysis of TiO2 is researched by cyclic voltammetry and chronoamperometry, and results show that there are two main reodox steps, namely from TiO2 to TiO and from TiO to Ti.

阴极制备主要包括40MPa压力下模压成型、两段式烧结(1小时内升至550℃保温1小时，再1小时升温至900℃保温8小时)及烧结后TiO2块打孔用钼棒串接三个主要环节；实验中选用CaCl2作为电解熔盐，并对其进行预处理(100℃，保温1小时； 300℃，保温2小时)；经热力学计算，还原钛氧化物的氧分压至少要低于5.11×10-7Pa，结合电解过程中所用熔盐CaCl2有极强的吸水性的特点，电解装置应有较高的密封性，自行设计了一套密封性可靠的电解装置，便于实验过程中熔盐预处理和氧分压的控制；通过干燥处理预电解过程中Ar流量大约为1.5L/min、电压为2.8 V、温度为850℃、时间为2小时，电解过程中Ar流量大约为0.2L/min、电压为3.1V、温度为900℃，实验结果表明电解时间与TiO2质量密切相关，质量越大需要电解的时间越长；通过自来水冲洗—稀盐酸浸泡、洗涤—在超声波辅助作用下稀盐酸洗涤，可减少熔盐及其它杂质对电解产物检测结果的影响；最后，通过循环伏安法、计时电流法对电解机理的研究，确定电解还原TiO2制备金属钛主要经历了TiO2-TiO-Ti的过程。

But when historical footstep strides 21 centuries really, people discovers surprisingly, weekly working hours is in person of quite a few infinite and outspread, exceeded 72 hours even, and many people were stripped however working right, be washed out flintily by the market and abandoned, and those weekly working hours are in ceaseless and outspread people is ego of promotion of bitter of work energetically of all the more however.

但历史的脚步真的迈入21世纪时，人们却惊奇地发现，相当多的人每周工作时间在无限延伸，甚至超过了72小时，而有不少人却被&剥夺&了工作的权利，被市场无情地淘汰和抛弃了，而那些每周工作时间在不断延伸的人们却是愈加发奋苦苦地&提升&自我。

Results In normal thermal group, rCBF was significantly decreased in 2 hours after SAH and the mortality rate is 35.88% in 24 hours. In hypothermal group, rCBF was also significantly decreased in 2 hours but to obviously lower extent compared with normal thermal group and with a mortality rate of 5.17%.

结果 常温组穿刺后2 h内rCBF显著降低，24 h 内死亡率35.88%；亚低温组术后2小时内rCBF显著降低，但降低幅度较SAH显著减少，24 h内死亡率为5.17%。

Methods The samples of hygienic protection beaded paint were chosen to conduct the soak experiment, incontinuous soak of 4 times for 96 hours(exchange the soaking aqua every 24 hours), continuous soak of 4 times for 96 hours were conducted respectively, and then compared these experimental results with that which was obtained with the standard soak method30 d,6 ti...

根据涉及生活饮用水卫生安全产品标准修订和制定协作会议精神，笔者对与饮用水接触的卫生防护涂料的浸泡实验的样品浸泡方法进行了实验研究。1材料与方法1.1原理根据与

The main injury of kidney was located in proximal tubular epithelial cell ,it peaked at 12 hours and 24 hours after reperfusion,the sporadic karyopyknosis and karyorrhexis could be seen,but the basement membrane preserved well.48 hours later,the restoration could be seen.7 days later it restored obviously.

肾脏损害主要以近曲肾小管上皮细胞为主，12h、24h损伤达到高峰，可见核固缩、核碎裂，但基底膜保留完好。48h开始出现修复现象。7d后明显修复。

Vascular endotheliocyte fluorescence staining and leukocyte fluorescence tracing method were applied, in combination with microscopic video system and computer imaging analyzing system, to observe in dynamic and quantitatively the influences of acupuncture on pia matral encephali microvascular morphology, density and blood flowing velocity at 3 hours, 6 hours and 24 hours after cerebral occlusion of meddle cerebral artery.morphology, density and blood flowing state at various time divisions observed directly microscopically and vascular endotheliocyte morphology and the state of brain tissue which near the microvascular after infusion with velocity in infarcted area at various time divisions measured in quantity in each group.microvascular endotheliocytes were colored worse and more fluorescent exudation appeared.

采用血管内皮细胞荧光染色及白细胞荧光示踪法，结合显微录像系统和计算机图像分析系统，动态定量地观察了针刺对大脑中动脉阻塞后3，6，24h软脑膜微血管形态、密度、血流速度的影响。主要观察指标：①从显微镜下直接观察各组大鼠不同时段软脑膜微血管的形态、密度、血流状况，以及注入荧光剂后血管内皮细胞形态和周围脑组织状况。②定量测量各组大鼠不同时段梗死区微血管密度、血流速度。结果：120只大鼠均进入结果分析。

METHODS: Rat bilateral olfactory bulbs and olfactory mucosa at 1/3 nasal septum were obtained, sliced, digested in trypsin, and made into monoplast suspension. At 1×109/L, cells were incubated in uncoated 25 cm2 culture flask. At 18-20 hours, cell suspension was moved into another uncoated 25 cm2 culture flask (the first differential adhesion). At 24 hours, cell suspension was moved into a poly-D-lysine-coated 25 cm2 culture flask or poly-D-lysine-coated 6-well culture plate (the second differential adhesion). At 48 hours, parenchyma cells were removed after a half of medium was changed.

完整取大鼠双侧嗅球及剪取鼻中隔后1/3嗅黏膜，剪碎后胰酶消化，制成单细胞悬液，按1×109 L-1密度接种于未包被的25 cm2玻璃培养瓶中，18~20 h后将细胞悬液转移至另一未包被的25 cm 2玻璃培养瓶中（第1次差速贴壁），24 h后再将细胞悬液转移至经多聚右旋赖氨酸包被的25 cm2塑料培养瓶或经多聚右旋赖氨酸包被的6孔培养板中（第2次差速贴壁），接种培养48 h后半量换液以去除杂细胞。

Cumulus-enclosed oocytes from follicles in prepubertal gilt ovaries from alocal abattoir were cultured in modified TCM199 with and without 10 IU/ml PMSGand hCG for 22 hours respectively.After fixation and dying in 1% acid orcein,itshowed that 77.6% oocytes reached MII stage.Maturated oocytes were denudedwith 1mg/ml hyaluronidase,and fertilized with fresh or thawed sperms in modifiedTBM for 6 hours,then cultured in NCSU23 for 14 hours.The fertilization rates were87.5% for fresh sperms,64.1% for thawed sperms.

抽取从屠宰场获取的猪卵巢中的卵母细胞，在加入和不加hCG和PMSG的mTCMl99培养液中分别培养22小时，地衣红染色发现77.6％的卵母细胞达到MII期；去卵丘细胞后在mTBM中用鲜精或冻精解冻后受精6小时，在NCSU23中培养14小时后固定染色发现受精率分别为87.5％和64.1％；电激活后在NCSU23中培养20小时后固定染色发现原核形成率为94.1％。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。