简介：惠普出品的HPProLiantML370G4服务器采用了最新的IntelNocona处理器和全新的高性能模块化组件，较好地适应了高负载环境下的应用，它可以充分满足工作组以及中小企业用户的需求，为关键性的远程分支机构提供持久的运行环境，此外，它还集成了远程控制功能，使用户可以通过网络轻松访问并管理服务器。

简介：A(k;g)-graphisak-regulargraphwithgirthg.A(k;g)-cageisa(k;g)-graphwiththeleastpossiblenumberofvertices.Letf(k;g)denotethenumberofverticesina(k;g)-cage.Thegirthpairofagraphgivesthelengthofashortestoddandashortestevencycle.Afc-regulargraphwithgirthpair(g,h)iscalleda(k;g,h)-graph.A(k;g,h)-cageisa(k;g,h)-graphwiththeleastpossiblenumberofvertices.Letf(k;g,h)denotethenumberofverticesina(k;g,h)-cage.Inthispaper,weprovethefollowingstrictinequalityf(k;h-1,h)h),k≥3,h≥4.

简介：Inthispaper,theauthorsstudysomepropertiesofLittlewood-Paleyg-functionsg_ψ(f),LusinareafunctionsS_(ψ,α)(f)andLittlewood-Paleyg_(ψ,λ)~*(f)functionsdefinedonH~n,whereα,λ>0andψ,faresuitablefunctions.TheyarethegeneralizationofthecorrespondingoperatorsonR~n.

简介：Alooplessgraphonnverticesinwhichverticesareconnectedatleastbyaandatmostbybedgesiscalleda(a,b,n)-graph.A(b,b,n)-graphiscalled(b,n)-graphandisdenotedbyKbn(itisacompletegraph),itscomplementbyKbn.Anonincreasingsequencep=(d1,…,dn)ofnonnegativeintegersissaidtobe(a,b,n)graphicifitisrealizablebyan(a,b,n)-graph.Wesayasimplegraphicsequencep=(d1,…,dn)ispotentiallyK4—K2[K2-graphicifithasaarealizationcontaininganK4—K2[K2asasubgraphwhereK4isacompletegraphonfourverticesandK2[K2isasetofindependentedges.Inthispaper,wefindthesmallestdegreesumsuchthateveryn-termgraphicalsequencecontainsK4—K2[K2assubgraph.

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简介：摘要天津泰达广场G&H项目空调系统设计给出空调系统形式，对冰蓄冷变频主机及定频主机进行计算比较，指出变频冷机比定频冷机更具有优势。H2塔楼为节能示范楼，对H2塔楼的冷热源及空调系统进行了介绍。

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简介：说起空中炮艇,大家会不约而同地首先想起AC-130,它以拥有一门105毫米口径的榴弹炮而盖世无双。实际上,早在二战期间,美国B-25G/H轰炸机就安装使用了75毫米口径的坦克炮。如果以两种飞机的外形尺寸、起飞重量和当时坦克炮的口径来衡量,B-25G/H绝对是炮艇机的王者。1942年B-25报复性轰炸日本本土的故事流传甚广,但是B-25炮艇机却鲜为人知。本文将带您一起回顾B-25G/H轰炸机上的那门著名的

简介：采用国外学者提出的一种g-h分布,讨论了基于g-h分布下的VaR计算和分布的一些特性,经过研究证明,g-h分布下的VaR估计比在极值理论下的VaR更能准确地描述资产收益率的变化,具有很大的柔性。

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简介：摘要  目的：药品无菌检查中，污染的微生物的种类和抗性、样品的处理方法、样品的浓度、检查方法、培养基、培养条件等，将直接影响检查结果。只有在各检查条件均适宜时，才能保证样品中污染的微生物的充分生长。因此无菌检查应证明所采用的方法和检验条件是可靠的，以保证检查方法的完整性和实验结果的可靠性。 方法：试验按《中国药典》2020年版四部通则1101无菌检查法要求，用HTY-2000AG8无菌检查用隔离器，采用薄膜过滤法，加入6种株菌：大肠埃希菌（ Escherichia coli）〔CMCC(B)44 102〕,金黄色葡萄球菌（Staphylococcus ）[CMCC(B)26 003]  ，枯草芽孢杆菌（Bacillus subtilis ）[CMCC(B)63 501] ，生孢梭菌（Clostridium sporogenes）[CMCC(B)64941]，白色念珠菌(Candidaalbicans) [CMCC(F)98 001] ，黑曲霉 Aspergillus niger [CMCC(F)98 003] 。对每一试验菌在含供试品的容器中的生长情况逐一进行确认，从而建立该品种的无菌检查方法。结果：与对照管比较，含供试品各容器中的试验菌均生长良好。关键词：方法适用性试验；薄膜过滤法

简介：Inthispaper,maximum-likelihood(ML)anditsrelaxationalgorithm,whichareusedtoidentifythemathematicsmodelofanunderwatervehicle(UV),arcdiscussed.Withthetrialdataofzigzagtests,thehydrodynamicderivativesoftheUVwereestimated,andtherelaxationalgorithmisconfirmedtohavebetterastringencyfromthecontrastbetweenthetwomethods.Thenasimulationenvironmentbasedontheseparametersisestablishedtoverifythevalidityandeffectofthesemeth-ods.Theresultshowsthemodeliscredibleandthemethodsareveryusefulfortheresearchofmaneuverabilityandadaptivecontrolofunderwatervehicles.

简介：冬天又来了，这意味着什么？不是春天不远了，而是身体要渴了。因为冬天空气中的水分含量非常低，再加上暖气一来，空调一吹，在室内会感到更加的干燥。科学数据显示人类最适宜的空气湿度是在45％RH-65％RH（空气湿度一般用相对湿度即RH表示），而冬天的室内湿度一般只有15％-20％RH。你的身体已经在报警了，赶紧为身体解渴。

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简介：一、前言同行所知,UGIφ3000永煤气发生炉,在炉况正常和制气蒸汽压力基本稳定(约0.1MPa)条件下,制气过程上吹和下吹入炉水蒸汽流量相对恒定。本文将简要探讨当上吹和下吹入炉水蒸汽流量随制气过程进行而逐渐递减时,水煤气炉重要技术经济指标之一的水蒸汽分解率有何变化。

简介：6月5日,苹果公司在美国圣何塞举行苹果全球开发者大会（WWDC）2018,发布多项产品和技术.其中,推出机器学习CoreML2,速度提升30%,最高将模型大小缩减75%.苹果在去年WWDC上发布了CoreML,便于开发者为iOS创建机器学习应用.

简介：摘要：该技术成果开发完成日期为2022年01月15日，首次发表日期为2022年01月18日

简介：AbstractBackground:The programmed intermittent epidural bolus (PIEB) technique is widely used in labor analgesia, but the parameter settings of PIEB have not yet been standardized. We designed a study to identify the optimal interval duration for PIEB using 10 mL of ropivacaine 0.08% and sufentanyl 0.3 μg/mL, a regimen commonly used to control labor pain in China, to provide effective analgesia in 90% of women during the first stage of labor without breakthrough pain.Methods:We conducted a double-blind sequential allocation trial to obtain the effective interval 90% (EI90%) during the first stage of labor between April 2019 and May 2019. This study included the American Society of Anesthesiologists physical status II–III nulliparous parturients at term, who requested epidural analgesia. The bolus volume was fixed at 10 mL of ropivacaine 0.08% with sufentanyl 0.3 μg/mL. Participants were divided into four groups (groups 60, 50, 40, and 30) according to the PIEB intervals (60, 50, 40, and 30 min, respectively). The interval duration of the first parturient was set at 60 min and that of subsequent parturients varied according to a biased-coin design. The truncated Dixon and Mood method and the isotonic regression analysis method were used to estimate the EI90% and its 95% confidence intervals (CIs).Results:Forty-four women were enrolled in this study. The estimated optimal interval was 44.1 min (95% CI 41.7–46.5 min) and 39.5 min (95% CI 32.5–50.0 min), using the truncated Dixon and Mood method and isotonic regression analysis, respectively. The maximum sensory block level above T6 was in nearly 20% of parturients in group 30; however, 5.3%, 0%, and 0% of the parturients presented with sensory block level above T6 in groups 40, 50, and 60, respectively. There were no cases of hypotension and only one parturient complained of motor block.Conclusion:With a fixed 10 mL dose of ropivacaine 0.08% with sufentanyl 0.3 μg/mL, the optimal PIEB interval is about 42 min. Further studies are warranted to define the efficacy of this regimen throughout all stages of labor.Trial registration:Chinese Clinical Trial Registry, ChiCTR1900022199; http://www.chictr.org.cn/com/25/historyversionpuben. aspx?regno=ChiCTR1900022199.