降低

These artifacts degrade quality of the result image, make the detecting and locating of the functional active region more complicated.

这些伪影降低了图像的分辨率，影响了功能激活区域的检测，极大降低了图像的临床诊断价值。

One high-speed buffer circuit is added to the volume potentiometer to eliminate its influence on frequency bandwidth of the bridge circuit.

1，在音量电位器后增加一级高速缓冲电路，杜绝由于音量电位器对后级电路的频率带宽影响，音量控制方式使用并联型，有效提升音质，也降低了对电位器的要求，降低成本。

Based on the theory of shrinkage, capillary force theory, the influence of road concrete additives in common use on surface tension of water is studied, and the results show that the influence of water reducer is very small whereas shrinkage-reducing agent and air entrainer can reduce surface tension of solution significantly. The relation between surface tension and additive dosage are non-linear relation. Each additive has an obvious critical micelle concentration.

从混凝土收缩的基本理论——毛细管张力理论出发，通过道路混凝土外加剂对水的表面张力的影响研究发现，减水剂对水的表面张力的影响很小，而减缩剂和引气剂可以大幅度降低溶液的表面张力，溶液的表面张力随外加剂的掺量呈非线性形式降低，而且都存在临界胶束浓度。

UV-C irradiation could restrain the afterripening of Coprinus comatus and inhibit the activity of polyphenol oxidase during storage, accordingly reduce its respiratory strength, minish membrane permeability and delay browning reaction, especially decrease the stipe elongation rate effectively, thereby prolong its fresh-keeping time.

UV-C照射能够抑制鸡腿菇在贮藏期间的后熟作用，降低多酚氧化酶活性，从而降低鸡腿菇的呼吸强度，减小细胞膜透性，延缓褐变反应，尤其能有效地抑制菌柄伸长，从而延长鸡腿菇的保鲜时间。

Nerve ton e deterioration; vagal ton e withdr awal,sympathetic ton in creasingand C ardiac v agal ton e in creasing and

患者存在自主神经调节异常，SDNN 和HF 明显降低，LF 降低不明显，LF/HF 比值明显增加；替米少坦治疗3 月后迷走神经活性明

As for the second conclusion, the authors explanation can be divided into two parts: on the one hand, the more self-identity that investor put on for the value of state-owned assets ,the lower risk agio the investor ask for, so the underpricing of IPO is low.

对于国有股比例与IPO抑价程度的负相关关系的解释是：一方面国有股比例所内含的政府信用的隐性担保功能降低了投资者的风险，其所要求的风险贴水也就相应降低，因此IPO抑价程度也低。

General symptoms such as purpure in mucous membrance and skin, bleeding of internal organs, decreasing of weight and bad mental state caused by modeling were well improved in four control groups (Chinese traditional medicine group, western medicine group, PG original formula group and PG major formula group), the peripheral PLT was increased, spleen weight and its action of phagocytosis and damage to PLT were both decreased, morrow megakaryocytes differentiation and maturation were improved and hyperplasia descended, which showed significant differences compared with the model group. Differences among the four control groups were not significant. The optimal dose ratio of PG major formula was finded out with homogeneous design software UST3.0 and multiple regression: Astragalus root 48g, Rhubarb 15g, peach kernel 1Og, Agrimony 24g.

结果：模型建立成功；中、西药对照组、紫癜颗粒核心方组与原方组小鼠对于免疫法造模所引起的皮肤粘膜紫癜、内脏出血、体重减轻、精神状态差等一般症状均有较好的改善；小鼠的外周血小板计数得到提高；脾脏均重及对血小板的吞噬破坏降低；骨髓巨核细胞分化成熟程度增高，增生活跃度降低，与模型组相比较，均有显著性差异，四个对照组之间无显著性差异，利用均匀设计UST3.0统计软件分析，进行多元逐步回归处理，筛选出紫癜颗粒核心方的最佳剂量配比为黄芪48g，大黄15g，桃仁10g，仙鹤草24g。

The results show that the system performance can be improved and the coefficient of performance increases as the ambient temperature and the compressor speed decreases. COP increases as the air velocity of condenser increases while the return air temperature of refrigeration evaporator has negative effects.

研究结果表明：随着环境温度的降低以及压缩机转速的减小，系统总体性能有所提高，COP增大；随着冷凝风速的增大，性能系数COP增大；而冷藏蒸发回风温度的升高，也会影响系统的总体性能，使得COP降低。

According to resonant principle, a suitable resonant chamber is designed for intake system. The low frequency sound pressure level is decreased in the body. The high frequency noise is improved through damping air filter brace.

因此，采用共振消声的原理，设计了合适的共振腔，降低了低频噪声成分，并采用阻尼降噪技术，对空气滤清气的支架进行了处理，降低了高频噪声成分。

After acetylation of cellulose, the allomorph of CTA changed and the crystallinity decreased; however, amorphism is dominant in CDA obtained by hydrolysis from CTA and spinning resulted in the reduction of crystallinity in CDA.

纤维素乙酰化后形成CTA，其晶型发生变化，结晶度降低；而CTA水解后得到的CDA，无定形占明显优势，纺丝过程中的取向又会进一步降低CDA的结晶度。

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。