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Briefly, coronal brain sections (100 mm)were cut with a vibratome, postfixed with 4% glutaraldehydein 0.1 mmol/L cacodylate buffer (pH 7.4) for 1 h, andthen with 1% osmium tetroxide in 0.1 mmol/L cacodylatebuffer for 2 h. After rinsing with distilled water, the brainsections were treated with 1% aqueous uranyl acetateovernight, dehydrated in an ascending series of ethanolsto 100%, followed by dry acetone, and then embedded inDurcupan ACM. Ultrathin sections (0.1 mm) were cut andstained with 3% lead citrate and subsequently examinedwith a Zeiss transmission electron microscope (Zeiss Inc.,Thornwood, NY, USA).

简单的说，先用切刀制成100um的冠状脑切片，然后用含有4%戊二醛在0.1 mmol/L的二甲砷酸缓冲液(PH7.4)中固定1小时后，放在含有1%四氧化锇的0.1 mmol/L的二甲砷酸缓冲液中2小时，接着用蒸馏水冲洗后，放在1%的aqueous uranyl acetate中过夜，接下来用梯度酒精(至100%)脱水，然后用丙酮干燥，再用Durcupan ACM包埋，切成0.1um的超薄切片后用3%的lead citrate染色，随后用透射电子显微镜观察。

Wanfenghu reservoir has been polluted seriously, and waters are in a severe eutrophication condition. Whether physico-chemical indexes or biological indexes appraisal, it proved that the water quality of Wanfenghu is between IV-V. Wanfenghu contains high TN and TP which are 5 to 6 times of the national standard content, and the quantities construction of phytoplankton communities is deeply disequilibrium, the Cyanophyta and Charophyta occupying overwhelming

万峰湖水库已经受到了严重污染，水体处于严重富营养化状态，其水体中的溶解氧的三季变化范围在2.92-5.3mg·L之间、化学耗氧量三季平均值为34.77 mg·L~(-1)、总氮三季平均值为2.5 mg·L~(-1)、总磷的三季平均值为0.35 mg·L~(-1)、叶绿素a含量的三季平均值为23.64 mg·m~(-3)，以上各指标表明万峰湖水库水体处于Ⅳ-Ⅴ类水质；无论从浮游植物的群落数量上还是浮游植物种类组成上看，蓝藻和绿藻都占绝对优势，而其它各种藻类极少，是典型的蓝-绿藻型水

Results After 50 mmol·L-1 Taurine was added to the spleen lymphocyte suspension containing 0.1 mmol·L-1 glycolaldehyde, the cellular DNA damage rates were markedly decreased (P.01) and the migration distances of DNA were significantly reduced (P.01) as compared with positive control group, and Taurine reduced the carbonyl compound contents in a reactive system in a dose-dependent manner.

结果：在0.1 mmol·L-1乙醇醛溶液中加入50 mmol·L-1牛磺酸后，小鼠脾淋巴细胞DNA的损伤率较阳性对照组明显降低（P.01），彗星实验的迁移距离也显著缩短（P.01），牛磺酸呈剂量依赖性明显降低反应体系中乙醇醛的含量。

When intermitted aeration was used, a dry cell weight of 2.62 g/L and an ethanol concentration of 28.9 g/L were achieved after 38 hrs of cultivation. Another fermentation was performed by feeding a 275 g/L glucose solution.

酦酵过程中，以间歇通气式批次酦酵培养(每通气3分钟停止通气10秒钟)，经过38小时后，菌体乾重可达到2.62 g/L，酒精浓度为

The study with water culture showed that when treated with 0.056 mg Cu·L~(-1),the chlorophyll a,b and contents in Spirodela polyrrhiza and Lemna minor were increased by 11%,46% and 22%,and 8%,15% and 11%,while under 0.15～5.6 mg Cu·L~(-1),the contents were decreased by 63%,62% and 63%,and 46%,45% and 45%,respectively,compared with no copper added.

结果表明，低浓度Cu(0.056 mg.L-1)的处理下，紫背萍和青萍的叶绿素a、叶绿素b和叶绿素的含量均出现不同程度的增加，分别高出其对照11%、46%、22%和8%、15%、11%，而在高浓度Cu(0.18~5.60 mg.L-1)的处理下，上述色素含量均显著下降，平均下降幅度分别达63%、62%、65%和46%、44%、45%。

The contents of chlorophyll a in the water surface is between 7~21μg/l and the lower layer is under 5μg/l. The most dominant species of nannoplankton is Trachelomonas sp.

结果发现水库生态高度稳定，水质介於轻微到中度有机物污染，尚达不到优养化之地步，水表之叶绿素a的含量最多，但都在7~21μg/l之间，但中、下层很少不超过5μg/l。

When dealt the Oncomelania hupensis with a low concentration of stachydrine (0.60g/L), the figures of the glycogen increased from 9.152% to 58.72%. While dealt the Oncomelania hupensis with a higher concentration of stachydrine (0.80g/L), the figures of the glycogen reduced from 11.68% to 76.16%. It indicated that the stachydrine can restrain Oncomelania hupensis's life by affecting their energy metabolism.

经低浓度水苏碱（小于0.60g/L）处理后钉螺软体的糖原含量上升，增加幅度从9.152%到58.72%，促进了钉螺的能量代谢；而在高浓度（大于0.809/L）处理后的钉螺软体的糖原含量下降，减少幅度从11.68%到76.16%，表明高浓度水苏碱处理液通过影响钉螺的能量代谢从而抑制其生长。

The simultaneous determination of sulfamic acid and DL-malic acid in environmental friendly electropolishing solution by ion chromatography was described. Sulfamic acid and DL-malic acid were well separated by using Metrosep A Supp 5 150 anion exchange column for separation and 3.2 mmol/L Na2CO3-1.0 mmol/L NaHCO3 as eluent.

采用Metrosep A Supp5150阴离子分离柱，以3.2mmol/L Na2CO3-1.0mmol/L NaHCO3为淋洗液，氨基磺酸和DL-苹果酸可得到很好的分离，使用离子色谱为检测手段可实现环保型电镀抛光液中氨基磺酸和DL-苹果酸的同时测定。

The said new technology will raise the Zinc concentration in the teated liquid to be higher than 30 g/L,and therefore the treated liquid can be reused as a process solution in a Zinc plant.The liquid permeating the membrane,with Zinc less than 0.1 g/L,is neutralis...

电解废水经膜分离处理后，浓缩液中锌浓度可达30 g/L以上，回收后全部进锌冶炼系统，透过液中锌浓度在0.1 g/L以下，用碱调节pH 5~6后可回用于电解工序洗板，实现了废水资源化和车间废水零排放目标，具有显著的经济效益和环境效益。

I.! y P,{7 v: R; O0 D INTRODUCTIONIn most of the previous studies like [1-3], the effect of SRS in DWDM fiber opticsystems has been treated under various assumptions like undepleted pump approximation, wavelength independent fiber loss coefficient, triangular approximation of Raman gainprofile, negligible loss of energy whenever a short wavelength photon is transformed into a long wavelength photon (i.e., l i / l k ~ 1), equal power loading in all the wavelength channels and equal channel spacing.

P _ W/ I 在以往的绝大多数研究中，如[1-3]，人们都认为， SRS 在 DWDM 光纤系统中的影响是在诸多假设，如未衰减泵近似值，波长依赖光纤损耗系数，喇曼增益表的三角近似值，当短波光子被转变为长波光子时(i.e。， l i / l k ~ 1可忽略不计的能量损耗，各波长通道均等的动力负载以及均等的信道的频率间隔。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。