墙体参数模糊下穿墙雷达运动目标成像

针对墙参数模糊条件下运动目标成像速度慢、墙参数重建精度差等问题,提出了一种改进拟牛顿-粒子群优化(Limited Broyden Fletcher Goldfarb Shanno-Particle Swarm Optimization,LBFGS-PSO)算法,建立了LBFGS-PSO算法模型,解决了传统拟牛顿算法和粒子群算法计算速度慢、误差较大等问题。该算法与块正交匹配追踪（Block Orthogonal Matching Pursuit,BOMP）算法相结合不仅可以精确重建边墙位置,还能够准确地重建多径效应环境中的运动目标和静止目标,算法的计算速度和精度得到了一定程度的提高。仿真结果和数据分析验证了所提方法的性能。     

改进的Loran-C同步干扰抑制高效自适应算法

针对目前Loran-C系统抑制同步干扰所采用的自适应算法存在运算量大、定位时间长 的缺点,提出了一种改进算法,即BMMax-NLMS算法,并对运算量进行了比较。通过建立Lora n-C信 号模型,运用改进算法对干扰信号进行自适应滤波。仿真结果表明,该算法能够在抑制同步 干扰的同时有效减少运算量。最后,利用实测数据进一步验证了这些结论。     

Medication,equipment, and supply costs for common interventions providing extended post-surgical analgesia following total knee arthroplasty in US hospitals

Aims: To estimate the cost to hospitals of materials (i.e. medications, equipment, and supplies) required to administer common interventions for post-surgical analgesia after total knee arthroplasty (TKA), including single-injection peripheral nerve block (sPNB), continuous peripheral nerve block (cPNB), periarticular infiltration of multi-drug cocktails, continuous epidural analgesia, intravenous patient-controlled analgesia (IV PCA), and local infiltration of bupivacaine liposome injectable suspension (BLIS).

Materials and methods: This analysis was conducted using a mixed methods approach combining published literature, publicly available data sources, and administrative data, to first identify the materials required to administer these interventions, and then estimate the cost to the hospital of those materials. Medication costs were estimated primarily using the Wholesale Acquisition Costs (WAC), the cost of reusable equipment was obtained from published sources, and costs for disposable supplies were obtained from the US Government Services Administration (GSA) database. Where uncertainty existed about the technique used when administering these interventions, costs were calculated for multiple scenarios reflecting different assumptions.

Results: The total cost of materials (i.e. medications, equipment, and supplies) required to provide post-surgical analgesia was $41.88 for sPNB with bupivacaine; $756.57 for cFNB with ropivacaine; $16.38 for periarticular infiltration with bupivacaine, morphine, methylprednisolone, and cefuroxime; $453.84 for continuous epidural analgesia with fentanyl and ropivacaine; $178.94 for IV PCA with morphine; and $319.00 for BLIS.

Limitations: This analysis did not consider the cost of healthcare providers required to administer these interventions. In addition, this analysis focused on the cost of materials and, therefore, did not consider aspects of relative efficacy or safety, or how the choice of intervention for post-surgical analgesia might impact outcomes such as length of stay, re-admissions, discharge status, adverse events, or total hospitalization costs.

Conclusions: This study provided an estimate of the costs to hospitals for materials required to administer commonly used interventions for post-surgical analgesia after TKA.     

实木地板块质量分析和修订标准的建议

重点分析实木榫接地板块产生变形的原因，针对ＧＢ／Ｔ１５０３６．１￣１５０３６．６－１９９４《实木地板块（榫接）》标准存在的缺陷，提出修订建议。     

铁路双线自动闭塞区间通过能力计算方法研究

铁路区间通过能力计算方法的研究,对于铁路运输事业的发展有着重要作用。依据直接计算法的思想,结合具体的运行图铺画,建立铁路双线自动闭塞区间通过能力计算模型,并利用该模型求解郑武客运专线新郑州到新许昌段的通过能力,通过实例验证明该模型的有效性。     

论文化板块模型的构建

在跨国公司、全球兼并和收购兴起的今天,因经营者不了解东道国的文化而翻船的事件层出不穷。参照莱恩和迪斯特芬诺所开发的六文化纬度系统,设计了一个文化定向框架。根据这个文化定向框架,不同国家之间的文化差异可以借助七个指标加以判断和辨别。选取与中国贸易往来最多的30个国家,通过调查问卷和专家打分的方式得出这30个国家在七项指标上的分数,再用SPSS统计分析软件提取出影响国家文化的两个主因素:价值观和世界观,根据提取的这两个主因素进行文化板块的构建。根据文化板块模型中母子公司所在国家位置的不同可以采取相应的跨文化方式,把文化冲突尽量消除在跨国经营之前。     

利93区块钻探技术

我公司通过对利93区块所钻井的研究,在总结以往钻井经验的基础上,认真消化和吸收国内同行业的先进钻探技术,结合的利93断地质特点,总结出了一套适应该区块安全快速钻进的实用技术,提高了该区块的钻井速度与钻井质量,取得了良好的社会效益与经济效益。     

水平井技术在江苏复杂小断块油田的应用

江苏油田地处经济发达的长江金三角地区,该地区地面水网密布、村庄密集,钻井征地费用高、环保要求高;地下断层发育、油藏规模小,属我国东部复杂小断块油田,开发难度大。近年来,由于水平井技术的广泛应用,推动了江苏油田的发展,文章阐述了江苏复杂小断块油田的基本地质特点,系统介绍了水平井技术在江苏油田试验、研究和应用状况,分析了典型油藏应用效果,提出了对水平井应用的认识和建议。     

大股东地位、产权属性与控制权利益获取——基于大宗股权交易视角的分析

文章利用2006-2010年发生的大宗股权交易事件,对大股东获取控制权利益行为进行分析。研究结论表明,大股东在所有权结构中的控制能力越强,能够获取的控制权利益水平就越高,但是与非控股大股东相比,处于控股地位的大股东更倾向于以私有收益的方式实现控制权利益;与非国有股东相比,国有性质的股东更倾向于以私有收益的方式实现控制权利益;较好的市场环境能够有效抑制获取控制权私利行为,尤其是对控股大股东和国有性质股东获取私利行为的作用程度和效果更明显。     

浅谈心理咨询师对大学生价值观的干预

心理咨询师应该干预大学生的价值观.有些心理问题(心情郁闷、失望、痛苦、烦躁等)是由于某些错误的价值观念引起的,对这部分心理问题可以称之为"道德心理障碍".心理咨询师对这样的来访者,不能保持价值中立,应尽可能在心理咨询过程中,以心理咨询的独特方式,积极干预学生的价值观,否则,咨询会没有效果.