简介：Thispapergivesabackgroundofcrackers,thensomeattackeventsthathavehappenedinIHEPnetworksareenumeratedandintroduced.Atlastahighlyefficientdefencesystemthatintegratesauthor'sexperience,researchresultsandhaveputinpracticeinIHEPnetworksenvironmentisdescribedindetail,ThispaperalsogivesnetworkandinformationsecurityadviceandprocessforhighenergyphysicscomputingenvironmentintheInstituteofHighEnergyPhysicsthatwillimplementinthefuture.

简介：ThepurposeofthispaperistoinvestigatethepricingEuropeancalloptionvaluationproblemsundertheexerciseprice,maturity,risk-freeinterestrate,andthevolatilityfunction.Anadvancemethodology,Chebyshevsimulatedannealingneuralnetwork(ChSANN),isenforcedfortheBlack-Scholes(B-S)modelwithboundaryconditions.OurschemeisstableandeasytoimplementonB-Sequation,forarbitraryvolatilityandarbitraryinterestratevalues.Also,thecomparativeresultsdemonstratethattheattainedapproximatesolutionsareconvergingtowardstheexactsolution.ThegraphicalresultsshowthattheincreasingflowoftheEuropeancalloptionastheexponentialincreasetakesplaceinassets.Thepresentedalgorithmcanbefurtherappliedtootherfinancialmodelswithcertainboundaryconditions.Thealgorithmofthemethodshowsthattheapproachcanalsobeeasilyemployedontime-fractionalB-Sequation.

简介：As"congestioncosts"ofcoaltransportationarefairlyhigh,asoundcomparisonofeconomicefficiencybetweencoaltransportationandpowertransmissionshouldtake"congestioncosts"ofcoaltransportationintoaccount.Otherwise,itcannottrulyreflectpowertransmission’sefficiencyadvantage.Inadditiontoraisingrailwaycapacity,theChinesegovernmentshouldalsoincreasepowertransmissiontorelievethetransportationpressureonrailwaytocutdown"congestioncosts."

简介：在北中国的城市的加热说明40%全部的大楼精力用法。在中央加热系统，热被几热exchangers分别地在热来源，变电所和终端被安装的热网络经常从热来源转移到用户。为加热能力和热来源温度的给定的外套，增加终端液体温度是为精力节省改进如此的串联热交换网络的热表演的一个有效方法。在这份报纸，有在系列的三阶段的热exchangers的串联热交换网络的数学优化模型被建立。在为液体流动评估的给定的热液体温度和全面加热能力，最佳的热交换区域分发和媒介最大化冷液体温度的目的通过反的问题和变化方法被决定。初步的结果证明热交换区域应该为每热exchanger同等地是分布式的。以便改进整个系统的热性能也显示那，更多的热交换区域应该被分配到二液体之间的流动率差别是相对小的热exchanger。这个工作为指导加热系统的实际串联的优化设计是重要的。

简介：AbstractPurpose:Auditory nerve injury is one of the most common nerve injury complications of skull base fractures. However, there is currently a lack of auxiliary examination methods for its direct diagnosis. The purpose of this study was to find a more efficient and accurate means of diagnosis for auditory nerve injury.Methods:Through retrospectively analyzing the results of brainstem auditory evoked potential (BAEP) and high-resolution CT (HRCT) in 37 patients with hearing impairment following trauma from January 1, 2018 to July 31, 2020, the role of the two inspection methods in the diagnosis of auditory nerve injury was studied. Inclusion criteria were patient had a clear history of trauma and unilateral hearing impairment after trauma; while exclusion criteria were: (1) severe patient with a Glasgow coma scale score ≤5 because these patients were classified as severe head injury and admitted to the intensive care unit, (2) patient in the subacute stage admitted 72 h after trauma, and (3) patient with prior hearing impairment before trauma. According to Goodman's classification of hearing impairment, the patients were divided into low/medium/severe injury groups. In addition, patients were divided into HRCT-positive and negative groups for further investigation with their BAEP results. The positive rates of BEAP for each group were observed, and the results were analyzed by Chi-square test (p < 0.05, regarded as statistical difference).Results:A total of 37 patients were included, including 21 males and 16 females. All of them were hospitalized patients with GCS score of 6-15 at the time of admission. The BAEP positive rate in the medium and severe injury group was 100%, which was significantly higher than that in the low injury group (27.27%) (p < 0.01). The rate of BEAP positivity was significantly higher in the HRCT-positive group (20/30, 66.7%) than in the HRCT-negative group (1/7, 14.3%) (p < 0.05). Twenty patients (54.05%) were both positive for BEAP and HRCT test, and considered to have auditory nerve damage. Six patients (16.22%) were both negative for BEAP and HRCT test, and 10 patients (27.03%) were BAEP-negative but HRCT-positive: all the 16 patients were considered as non-neurological injury. The rest 1 case (2.70%) was BAEP-positive but HRCT-negative, which we speculate may have auditory nerve concussion.Conclusion:By way of BAEP combining with skull base HRCT, we may improve the accuracy of the diagnosis of auditory nerve injury. Such a diagnostic strategy may be beneficial to guiding treatment plans and evaluating prognosis.

简介：Thepulsed-sprayfluid-bedgranulation(PSFBG)processwasinvestigatedandoptimizedusingdefinitivescreeningdesign,arecentlyproposednewclassofthree-leveldesignofexperimentmethod.Suchadesignenabledquadraticmodelstobeestablishedthatdescribedtheeffectofsixinputprocessparameters-inletairtemperature,inletairhumidity,bindersprayrate,atomizationpressure,pulseperiod,andpulsewidth-onthegranulequalityinaPSFBGprocess.Mathematicalmodelsofthemeanparticlesize,relativesizedistributionwidth,productionyield,andporosityweredevelopedtoquantifytherelationshipsbetweentheinfluencingfactorsandcriticalqualityattributes.Onthebasisofconstraintsonthedesiredgranuleproperties,adesignspaceforPSFBGwasdeterminedandrangesoftheoperatingparametersweredefined.Anacceptabledegreeofpredictionwasconfirmedbyvalidationexperiments,demonstratingthereliabilityandeffectivenessofusingdefinitivescreeningdesigntostudythePSFBGprocess.Thismethodcanacceleratescreeningandoptimizationofthisprocesswithinalargemultidimensionaldesignspace.

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