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Four substances including 2-methyl ethyl acetoacetate and barley straw extract distilled from bulrush as well as cetyl trimethyl ammonium bromide and isothiazo lintone were used for the comparison experiment in inhibiting the growth of Microcystis aeruginosa in various phases. Result showed that inputting chemicals in the lag phase has better effect than in the log phase, and adding in lag phase can effectively inhibit the algae growth. Although feeding allelopathic substance at log phase can lead to certain restraining effect, it cannot result in the effective inhibition of algae growth, which can be well achieved by feeding CTAB and isothiazo lintone below 10mgl/L during log phase.

研究用从芦苇中提取的2-甲基乙酰乙酸乙酯和大麦秸浸出液两种化感物质以及十六烷基溴化钱和异噻唑啉酮等四种药剂对不同生长期的铜绿微囊藻进行了对比抑制试验,结果显示在铜绿微囊藻生长的迟缓期投试验药剂效果比在对数期投效果都好,在迟缓期投四种药剂,都有很好的抑藻效果;在铜绿微囊藻生长的对数期投化感物质,虽然有一定的抑藻率,但效果较差,而在藻对数期投10mg/L以下的CTAB和异噻唑啉酮能达到很好的水华抑制效果。

Although the reinforcement technology has been applied widely in highway construction, there are many challenges in the field which puzzle highway engineer for a long time in China. Mechanical behavior and design method of reinforced subgrades in highways have been studied thoroughly based on

针对筋土路基的关键问题,通过现场调查、理论分析、室内试验、数值模拟和现场测试,对筋土路基的主要工程问题、静力荷载和行车荷载作用下筋土路基的力学行为、筋土路基的设计计算理论、方法和参数以及筋土路基施工技术进行了深入系统的研究。

The hot compress bag placed in the microwave oven, with microwave heating 3 - 5 minutes (according to various different parts of the salt packet) will be added to the hot salt bag temperature, such as the reheating temperature is too low when the heating time should not exceed 1 minutes followed by analogy (medicine bag and outer bag into the microwave oven do not heat), after the hot compress bag of microwave into the outer bag and then put hot compress parts of medicine packets according to the disease may be a long-term wear, essential oils can be with the hot compress bag or medicine bag according to the disease situation in combination.

将暖敷袋放置微波炉中,用微波暖3--5分钟(根据各种不同部位的盐包)将盐袋至烫手的温度,如温度过低二次暖时每次暖不得超过1分钟依次类推(中药包和外袋请勿放渗入渗出微波炉暖),将微波后的热敷袋放渗入渗出外袋中然后放置暖敷部位,中药包根据病情情况可长期佩带。精油可配合热敷袋或中药包根冬天吃苦瓜能减肥吗据病情情况结合使用。

The degree of hydrogenation of methyl benzoate might be controled by adding the promoters and changing the nano-size of ZnO. For hydrogenation of methyl benzoate to benzaldehyde, the active-structure of a catalyst should be modified to decrease the absorption of benzaldehyde on the surface of it, because benzaldehyde absorbed is hydrogenated easily. Using 30-40%ZnO/γ-Al〓O〓 or Li-30%ZnO/γ-Al〓O〓, a higher selectivity to benzaldehyde is obtained. Hydrogenolysis of methyl benzoate to toluene or benzene is carried out effectively using a catalyst modified. For instance, 45.3% selectivity to benzene and 100% conversion of methyl benzoate at 420℃ was obtained over 10%ZnO/MCM-41 with the nano-size particles of ZnO (2.4nm).

也可以通过助催化剂的添和活性组分的纳米化,并根据苯甲酸甲酯多步氢反应的特点实行氢深度的调控:苯甲酸甲酯选择性氢制苯甲醛中,由于苯甲醛容易进一步氢,需要对活性结构进行调变,以减弱苯甲醛的吸附,使用30-40%ZnO/γ-Al〓O〓催化剂或Li调变的Li-30%ZnO/γ-Al〓O〓催化剂,可获得较高的苯甲酸甲酯氢制苯甲醛的活性;采用同样的方式,苯甲酸甲酯选择性氢解为甲苯或苯也获得了较好的结果,如使用ZnO纳米化的10%ZnO/MCM-41催化剂,在420℃,可获得45.3%的苯选择性,苯甲酸甲酯完全转化。

Methods: A randomized, single blind controlled clinical design was used to accomplish the series clinical trials included 123 cases. The troop of gatifloxation injection with sodium chloride included 20 cases in gatifloxation group and 23 cases in ciprofloxation group; The troop of gatifloxation injection with glucose included 21 cases in gatifloxation group and 19 cases in levofloxacin group; The troop of gatifloxation pivoxil included 19 cases in gatifloxation group and 21 cases in ciprofloxation group. The antibacterial activity of clinical isolates were detected by scrips which contain gatifloxation(5ug/L), levofloxacin (5ug/L), ciprofloxation (5ug/L), spafloxation(5ug/L), cefotaxime(30ug/L), penicillin(10U/L) respectively. The MICs of sixkinds of antibiotics were detected by 2-fold agar dilution method. Result: The common data of patients in the two groups of 3 troops were similiar.

采用区组分层均衡随机单盲试验设计,分别完成甲磺酸替沙星氯化钠注射液组试验药20例及对照药23例、甲磺酸替沙星葡萄糖注射液组试验药21例及对照药19例、甲磺酸替沙星片剂组试验药19例及对照药21例共123例感染患者的临床试验;用K-B法测定临床分离致病菌对替沙星(5ug/L)、左氧氟沙星(5ug/L)、环丙沙星(5ug/L)、司帕沙星(5ug/L)、头孢噻肟(30ug/L)、青霉素(10U/L)纸片的敏感性,再用按美国国家实验室标准委员会(National Committee for Clinical Laboratory Standards,NCCLS)推荐的琼脂平皿对倍稀释法测定临床分离菌株对替沙星、左氧氟沙星、环丙沙星、司帕沙星、头孢噻肟、青霉素的最低抑菌浓度(Minimum Inhibitory Concentration,MIC)以了解其体外抗菌活性。

In order to research the ship ultimate strength, the ultimate strength of stiffened panel must be considered. And the web buckling and the stiffener tripping are the two main failure forms of stiffened panel. Based on the two main failure forms in this paper, according to the six failure modes of stiffened panel, the ultimate strength is solved by programming, and the failure mode is presented.

船体梁可近似看作是由筋板组成的薄壁箱型结构,要研究船舶的极限强度,必须考虑筋板的临界应力,而腹板屈曲和扶强材侧倾是筋板的两种主要失效模式,本文在分析这两种失效模式的基础上,根据筋板的六种失效模式,编程求解筋板的临界应力,并给出其失效模式。

In order to enlarge applied field of autoclaved aerated concrete block, China engineering building standardization association sent down "A class Autoclaved aerated concrete block and brickwork structure technology rules". The rules point out definitely building autoclaved aerated concrete block tier building can only use A class Autoclaved aerated concrete block.

为了将蒸压气混凝土砌块推广应用至具有节能、抗震保障的多层承重建筑,扩大应用领域,以求得气混凝土行业的更大发展,中国工程建设标准化协会砌体结构委员会已下达了,《A类蒸压气混凝土砌块砌体结构技术规程》,规程将明确指出建造气混凝土砌块多层房屋只能用A类蒸压气混凝土砌块。

In-situ monitoring gave the following results: 1 a tension stress zone occurred at the bottom of reinforced rock mass which indicated that the role of rock bolting was remarkable; 2 stress concentration at surrounding rock of main shaft was gradually transferred from shaft wall to complete rock mass far from shaft center; 3 vertical displacement was gradually smaller from up to bottom and from center to outside of the reinforced loose rock mass.

首先,建立了主溜井三维有限元计算模型,模拟了主溜井围岩的塌落破坏过程和固后的固体的稳定性及变形特性;同时,还采用多点位移计等对固体的稳定性进行了实地监测。计算结果表明:网棚锚注固体的纵剖面上的压力和位移规律是①固体下部局部出现拉应力区,表明锚杆的使用是合理的;②固体内的应力由塌落中心向周围围岩过渡,应力越来越大,最终将荷载传至围岩中;③从下到上下沉逐渐减小;④从固体中心到周围下沉位移逐渐减小,且近似一条抛物线。

The strain of sheet mainly occurs in loading end in the initial load. With the increase of load, the strain extends to the remote end; the bond stress gradually reduces from the loading end to the remote end; the peak bond stress locates slightly away from the loading end. For 16.3% moisture content, the effective bond length between BFRP and wood is 100 mm.

结果表明,载初期,纤维布上的应变主要存在于载端附近,当荷载逐渐增时,应变也向载远端增大;随着与载点距离的增,粘结应力逐渐降低;随着荷载的增,粘结应力峰值位置向远离载点方向稍有移动;在含水率为16.3%条件下,BFRP与木材的有效粘结长度为100mm。

After the coagulation and sedimentation in the jar test with ferric chloride, the residual COD in the supernatant was 9000 mg/L which was further oxidized by chloric acid or with Fenton method. The COD removal efficient increased with the increasing of the dosage of chloric acid from 0.5 ~ 100 g/L or the H2O2/Fe2+ from 5/2.5 ~ 50/25 g/L, and the economical dosage were suggested as chloric acid 50 g/L or the H2O2/Fe2+ 50/25 g/L which resulted in the residual COD of 400 and 3300 mg/L individually for 95 and 63 % COD removal percentages. Oxidation test showed that only 5 minutes was needed for 92 % COD removal in the case of chloric acid dosage 50 g/L.

废液A经氯化铁混凝沉淀后,COD浓度可降低至9,000mg/L,仍未符合符合工业区污水厂进厂限值(<650mg/L),进而使用氯酸钠直接氧化法及Fenton法以去除剩余之COD,其操作条件范围分别为氯酸钠药量0.5g ~ 100g/L ,而最适药量为50g/L,及Fenton法H2O2/Fe2+药量范围为5/2.5g/L~50/25g/L,其最适H2O2/Fe2+药量为50/25g/L,两种方法处理后残余COD浓度分别为400mg/L及3300mg/L,去除率约为95%及63%,而依此判断氯酸钠氧化处理残余COD有较好之效果,且利用氯酸钠氧化速率快,5分钟就能有92%去除率,所需水力停留时间较短,由此实验建议利用氯酸钠直接氧化处理,最适药量为50g/L。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。