简介：Overthenextdecade,thegovernmentplanstopumpinmorethan$1billiontodevelopdeep-seatechnologiestoreapcopper,cobalt,manganeseandrareearthminerals.

简介：小朋友们也许会认为“thefirstfloor”就是汉语中“一楼”的意思,但如果英国人和美国人说“thefirstfloor”时,你会吃惊地发现:他们为你选择的楼层并不相同。怎么回事呢?

简介：Asanemergingindustry,China'swoodfloorindustrydatesbacktotheearly1980s.Despitealatestart,ithasdevelopedrapidlyduringthelast20years.ThepastdecadeshavewitnessedgreatchangesinChina'swoodfloorindustry.Withhighquality,manyproducts"madeinChina"areavailablewidelyabroadnowadays.Currentglobaleconomicshocks,however,affectChina'sdomesticrealestatesector;hencethefallingdomesticsalesofwoodfloor.Thepaperaimstoidentifythecurrentsituationoffloorindustry...

简介：ThispaperpresentsafurtherimprovedProductionActivityControlArchitecturetodealwiththecomplexityofinformationbycreatingSub-ProducersandSub-MoverswhichwillnotonlygiveabettercontrolatworkstationlevelbutalsoreduceloadontheDispatcher.ItalsomakesananalysisofthebasicandimprovedPAC(ProductionActivityControl)ArchitectureintheControlSystemforIntegratedManufacturing.ThePACArchitectureandtheimprovementwillfurtherenhancetheflexibilityandadaptabilityofthearchitectureintheeverchangingenvironmentoftheShopFloorControl(SFC)Systems.

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简介：Thedeep-seafloorimagesareacquiredundernon-uniformillumination,theeffectsofwhichbringupmanydifficultiesforimagesegmentation.Thepapercomparesthreemethodsofremovingnon-uniformilluminationeffects.Theeffectivenessandrobustnessareevaluatedonthreetestimageswithhigh-,moderate-andlow-densitygrains,respectively.Theresultsshowthatlocalfilteringalgorithmdoesnotremovethenon-uniformilluminationeffectscompletely.Theimagesubtractingalgorithmwilllosesomeofthedynamicrangeoftheoriginaldata.Theenhancedimagestretchingalgorithmisthemosteffectiveone.

简介：广泛的试验性、理论的研究研究被承担学习在一个主要机场的休息室要过去常的一个长跨度的对的具体地板系统的颤动有用性。明确地，跳影响测试被执行获得地板形式的参数，由山峰加速的分发的分析列在后面。跑的测试也被执行捕获加速回答。对的具体地板被发现有低基本自然频率(8.86Hz)相应于2.17%的平均形式的抑制比率。系数rp为跑为最大的root-mean-square加速的方便计算被建议。在理论分析，在运用刺激下面的对的具体地板与简单地支持的边被当作一个二跨度的连续各向异性的矩形的盘子。计算分析结果(自然频率和root-mean-square加速)与试验性的同意很好。分析途径因此被验证。

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简介：Cathodeactivityplaysanimportantroleintheimprovementofthemicrobialfuelcellsonoceanfloor(BMFCs).AcomparisonstudybetweenRayon-based(CF-R)andPAN-basedcarbonfiber(CF-P)cathodesisconductedinthepaper.Thetwocarbonfiberswereheattreatedtoimprovecellperformance(CF-R-H&CF-P-H),andwereusedtobuildanewBMFCsstructurewithafoamycarbonanode.Themaximumpowerdensitywas112.42mWm-forCF-R-H,followedby66.6mWm-2forCF-R,49.7mWm-2forCF-P-Hand21.6mWm-2forCF-Prespectively.ThehigherspecificareaanddeepgroovemakeCF-RhaveabetterpoweroutputthanwithCF-P.Meanwhile,heattreatmentofcarbonfibercanimprovecellpower,nearlytwo-foldhigherthanheattreatmentofplainfiber.Thisimprovementmaybeduetothequinonesgroupformationtoacceleratethereductionofoxygenandelectrontransferonthefibersurfaceinthethreephaseboundaryafterheattreatment.ComparedtoPAN-basedcarbonfiber,Rayon-basedcarbonfiberwouldbepreferentiallyselectedascathodeinnovelBMFCsdesignduetoitshighsurfacearea,lowcostandhigherpower.Thecomparisonresearchissignificantforcathodematerialselectionandcelldesign.

简介：设计的一条改进欧几里德几何学的几何学途径伪周期(质量管理)有高率、低的错误地板的低密度的同等值检查(LDPC)代码被论述。构造QC-LDPC代码与高率比原来的代码有更低的错误地板。最小的重量codeword的分发被分析，并且最小的重量codeword的一个足够的存在条件被发现。很多QC-LDPC与更低的错误地板编码的模拟表演能被减少最小的重量codewords的数字设计令人满意这个足够的条件。

简介：epidosites在在海地板上作为黑吸烟者发泄的形成矿石的海洋的热水的系统的底在upflow地区被解释到形式。这研究介绍新地，专业和踪迹元素，和为在ca的最近发现的epidosites的氧同位素数据。1.0GaMiaowan()在Yangtzecraton的北边缘附近定位的ophiolite。epidosites主要在核心发生强烈使变形了，lensoidal角闪岩。域观察，学生和踪迹元素和氧同位素建议epidosites被海洋地板暗岩，辉绿岩女同性恋，和斑粝岩的交代作用在seafloor期间形成热水的改变。

简介：这个地点和结构的参数无常的动态效果的考虑被标准在大多数国家为核电厂(NPP)要求。抗地震的标准提供二个基本方法分析参数无常。手工地直接处理计算地板反应系列(皇家学会会员)确定的途径珍视是第一个方法。第二个方法是执行概率统计的FRS的分析根据蒙特卡罗方法结果。二个方法能仅仅反映不明确的参数的全面效果，并且结果不能为某个参数影响和贡献被屏蔽。在这研究，基于NPP的地板反应系列的动态分析，为各种各样的不明确的参数的估计的影响的一个全面索引被介绍并且推荐，包括关联系数，回归斜坡系数和旋风秋千。在NPP地震标准补偿指导的缺乏，建议方法能有效地被用来从敏感，尖酸和统计秋千的方面评估各种各样的参数的贡献关联。最后，例子被提供从系统、直觉的观点验证指示物的集合，例如NPP的皇家学会会员的结构参数和贡献的影响的无常。这个索引对参数的不同类型敏感，它为评估为NPP要求的抗地震的参数提供一种新技术。

简介：AbstractBackground:It has been a global trend that increasing complications related to pelvic floor surgeries have been reported over time. The current study aimed to outline the development of Chinese pelvic floor surgeries related to pelvic organ prolapse (POP) over the past 14 years and investigate the potential influence of enhanced monitoring conducted by the Chinese Association of Urogynecology since 2011.Methods:A total of 44,594 women with POP who underwent pelvic floor surgeries between October 1, 2004 and September 30, 2018 were included from 22 tertiary academic medical centers. The data were reported voluntarily and obtained from a database. We compared the proportion of each procedure in the 7 years before and 7 years after September 30, 2011. The data were analyzed by performing Z test (one-sided).Results:The number of different procedures during October 1, 2011-September 30, 2018 was more than twice that during October 1, 2004-September 30, 2011. Regarding pelvic floor surgeries related to POP, the rate of synthetic mesh procedures increased from 38.1% (5298/13,906) during October 1, 2004-September 30, 2011 to 46.0% (14,107/30,688) during October 1, 2011-September 30, 2018, whereas the rate of non-mesh procedures decreased from 61.9% (8608/13,906) to 54.0% (16,581/30,688) (Z = 15.53, P < 0.001). Regarding synthetic mesh surgeries related to POP, the rates of transvaginal placement of surgical mesh (TVM) procedures decreased from 94.1% (4983/5298) to 82.2% (11,603/14,107) (Z = 20.79, P < 0.001), but the rate of laparoscopic sacrocolpopexy (LSC) procedures increased from 5.9% (315/5298) to 17.8% (2504/14,107).Conclusions:The rate of synthetic mesh procedures increased while that of non-mesh procedures decreased significantly. The rate of TVM procedures decreased while the rate of LSC procedures increased significantly.Trial registration number:NCT03620565, https://register.clinicaltrials.gov.

简介：摘要：住宅项目地下停车库已成为拓展城市空间利用率的重要举措，地下车库作为车辆停、行主要场所，对地面使用功能、安全耐久的提出了更高的需求，金刚砂+固化剂一体化成型地面的技术逐渐普及。建设工程的前期的发展阶段，大量采用普通的混凝土地坪，项目实际的操作人员对金刚砂地坪工艺存在质量控制、技术要求的盲区，导致质量问题频发，主要体现在金刚砂完成面产生裂缝、工序安排不当造成成品破坏、多种颜色金刚砂混淆致使感观差、渗水处理不到位四方面的主要问题。实践表明，金刚砂施工采用凿毛、结浆工艺、不同颜色金刚砂施工时间流水搭接、定板取样、不同情况采取不同治理渗漏措施等一系列的技术措施，能够大幅度的提高金刚砂地面的成型质量和耐久性，满足感观和使用要求。