汽车三滤超声波清洗机及其控制系统

为解决汽车三滤清洗困难及减少浪费和污染 ,本文提出用超声波技术清洗汽车三滤 ,介绍了超声波三滤清洗机的工作原理和工艺流程 ,并对其进行了总体设计和自动控制系统设计     

“营改增”的减税效应——基于DSGE模型的分析

在新凯恩斯的分析框架下,根据中国经济的实际发展情况,构建了包括家庭、中间品厂商、最终品厂商、中央银行以及财政部门在内的动态随机一般均衡（DSGE）模型,评估了“营改增”的减税效应。对“营改增”减税效应的评估从两个维度进行：首先,把流转税领域税负减轻作为一个外生冲击,分析了社会总产出、消费水平、政府支出、劳动水平、工资水平、投资和资本存量等宏观经济变量的变动趋势;其次,构建了“营改增”前后两个不同的政策环境,并模拟了投资下降的经济下行冲击,对比分析了减税前后总产出对外生冲击的反应程度。研究发现：“营改增”虽然降低了政府部门的税收收入,但其减税效应能促进产出和消费的增加,激发整个经济的增长潜力;目前的改革力度在应对经济下行压力时尚没有发挥出预期的效果。     

论挡浪墙砼外观的质量控制

在典型施工中挡浪墙砼常出现松顶、云斑、底脚漏浆导致的蜂窝麻面、锈斑、沉降缝缝板处漏浆导致的砂陷麻面、粘皮、正斜面的气泡数量太多且较大等问题,分析原因,砼的外观质量得到改善。     

流动性冲击下商业银行资本结构的动态调整研究

流动性冲击不仅引发了后金融危机时代的银行恐慌,也直接导致了新冠肺炎疫情期间欧美国家银行股价崩溃,这是当前银行资本结构调整的重要影响因素。构建流动性冲击下银行资本结构的动态调整模型,探讨商业银行资本结构对流动性冲击的敏感程度。结果显示：伴随着流动性冲击的增加,商业银行资本结构的调整呈现开口向下的凸函数特征(倒U型)。经过实证测算,我国商业银行流动性持有应该保持在[25,31]的区间,这样既能满足流动性监管的需求,也能推动资本结构转向最优状态。     

Bank-to-bank lending channel and the transmission of bank liquidity shocks: Evidence from France

Good liquidity is essential for the banking system to function properly and supply credit to the real sector. However, several banks all over the world face large shocks to their liquidity supply due to numerous factors. This study contributes to the literature on the transmission of liquidity shocks by investigating the bank-to-bank lending behavior of French banks during the global financial crisis (2008 and 2009). In addition, we examine the factors strongly influencing the liquidity of the interbank deposits market. First, using a fixed-effects model on a sample of 85 French banks for the period from 2005 to 2010, we find that the deposits channel plays an important role in the transmission of liquidity shocks across the banking system. Second, we use difference-in-difference methodology to study the effects of liquidity shock on bank lending. Our results show that French banks reduced their bank-to-bank lending significantly during the financial crisis period. Moreover, our results suggest that the reduction could have been due to deposit activities.     

物态波形论——《自由运动论》在实际中的应用（7）

由于粒子运动速度很快，所以观察时，只能观察到其波动形的运动轨迹。由《物态球形论》的理论可知，波动形的运动轨迹就是粒子的一种形态。即波形也是物质的一种形态。     

Finance companies in Mexico: Unexpected victims of the global liquidity crunch

We study the connection between the global liquidity crisis and the severe credit crunch experienced by finance companies (SOFOLES) in Mexico using firm-level data between 2001 and 2011. Our results provide supporting evidence that, as a result of the liquidity shock, SOFOLES faced severely restricted access to their main funding sources (commercial bank loans, loans from other organizations, and public debt markets). After controlling for the potential endogeneity of their funding, we find that the liquidity shock explains 64 percent of SOFOLES’ credit contraction during the recent financial crisis (2008–2009). We use our estimates to disentangle supply from demand factors as determinants of the credit contraction. After controlling for the large decline in loan demand during the financial crisis, our findings suggest that supply factors (such as nonperforming loans and lower liquidity buffers) also played a significant role. Finally, we find that financial deregulation implemented in 2006 may have amplified the effects of the global liquidity shock.     

毫米波器件的技术发展与应用

对毫米波器件的技术进步和研发水平进行了详细论述,同时对毫米波器件关键的材料、工艺及集成电路的发展进行了分析,指出该技术的应用在军事上有着广阔的前景,对雷达、毫米波通信、精密制导等装备的研制有较好的指导作用.     

弦振动方程Cauchy问题广义解的结构

建立了弦振动方程Cauchy问题在L^2空间中的广义解，并证明了广义解在L^2空间中与古典解具有相向的结构．