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简介：NorthwestElectricPowerDesignInstitute(NWEPDI)wasestablishedin1956.Theinstituteundertakestheengineeringexploration,surveyanddesignofthermalelectricpowerplant,conventionalislandofnuclearpowerplant,powertransmissionandsubstationprojects,designofthe1stand2ndclasspressurevessels,electricpowersystemplanning,environmentalprotectionengineeringmonitoring,assessmentanddesign,variousindustrialandcivilarchitecturaldesignandthescicntificresearchandtechnicaldevelopmenttasksofcorrespondingspecialities.Theinstituteis

简介：Coveringanareaof1,449squarekilometers,YingshanCountyisamountainousarealocatedinthenortheasternpartofcentralChina’sHubeiProvince.In1998,localpopulationtotaled404,493,ofwhom73,287weremarriedwomenofchildbearingage.Householdsnumbered110,000.Overthepastfi...

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简介：Thepurposeofthisstudyistodevelopasimplifiedmathematicalmodeltosimulatesuspendedsolidsandtotalphosphorusconcentrationsinawetlandordetentionpond.Fielddatacollectedfromawetdetentionpondduringstormswereusedtodemonstratetheapplicationofthismodel.Favorableagreementsbetweenthemodelresultsanddatawereachieved.Theratioofaverageoutletmethodandsummaryofloadsmethodwereusedtoquantifytheremovalefficiencyofpollutants,reflectingtheefficienciesareveryclose.Theresultsofthisstudycanbeusedfornonpointsourcepollutioncontrol,wastewatertreatmentorbestmanagementpractices(BMPs)throughthewetland.

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简介：ZhouShuhua,China'sBestMatchmakerZhouShuhua,wholivesinShenyang,becameavolunteerafterretirementin1983.For30years,shehashelpedthecommunitytohandleproblemsrelatedwiththe

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简介：图象质量评价(IQA)是在图象处理的一个基本问题。人的视觉是层次的，这是一个普通原则：我们首先察觉象轮廓那样的全球结构的信息然后如果必要集中于本地地区性的细节。跟随这个原则，我们由确定为IQA建议一个新奇框架结构的信息和区域的退化独立满足，并且印射两个获得客观分数。结构的信息能被轮廓察觉技术作为轮廓获得。实验被进行在二大规模数据集上与多重最先进的方法比较表明它的表演。

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简介：AbstractObjective:To measure the prevalence of depression in patients with psoriasis and to evaluate the relationship between the severity of psoriasis and depression and its effect on patients’ quality of life.Methods:A total of 154 patients with a confirmed diagnosis of psoriasis were assessed to determine the severity of psoriasis based on the psoriasis area and severity index score, presence, and severity of depression using the patient health questionnaire 9, and quality of life using the dermatology life quality index 10. Pearson correlation coefficient was used to demonstrate the relationship between continuous variables with 95% confidence intervals (CIs); P < 0.00001 was taken to indicate statistical significance.Results:The severity of psoriasis was mild in 36.36% of patients, moderate in 25.97%, severe in 32.47%, and very severe in 5.20%. Of the 154 patients, 139 (90.3%) had depression; the severity of depression was mild in most affected patients (46.7%) and severe in 2.6% of patients. Psoriasis had a moderate effect on the quality of life in 37.01% of patients and a very large effect in 33.77% of patients. The severity of psoriasis was positively correlated with depression (Pearson correlation coefficient, r= 0.42, P < 0.00001, 95% CI: 0.28-0.54) and quality of life (r= 0.43, P < 0.00001, 95% CI: 0.29-0.55).Conclusion:Depression is a common comorbidity in patients with psoriasis. The severity of psoriasis is positively correlated with the severity of depression and is associated with poor quality of life.

简介：AbstractParotidectomy is the mainstay treatment for tumors of the parotid gland. In an effort to improve clinical outcomes, several modern surgical techniques and perioperative interventions have been evaluated and refined. This review discusses current and actively debated perioperative interventions aimed at improving patient safety and the quality of parotidectomy. Relevant high-impact literature pertaining to preoperative diagnostic modalities, intraoperative surgical techniques, and postoperative care will be described.

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简介：Inthispaper,aphotoelectricdeviceisintroduced,whichisusedinde-tectingthequalityoninternalsurfaceofthinandlongsteelpipe.Inthisdevice,theCCTVlensisusedforextracttheflawinformationoninternalsurfaceofthepipe,andmakeIBM-PC/AT486computerascontrollingandimageprocessingsystem.Bythisinstrument,thefunctions,suchasthedigitalconversiongofinputinformation,imageprocessing,classificationofrecognitionandoutputdisplaycanbeobtained,Inthepetroleumandchemicalindustry,byusingthisapparatus,wecandetectthequalithoninternalsurfaceofvariousmetalpipeswithreal-timeautomatically.

简介：<正>1IntroductionBioflocsisaheterogeneousmixtureofthemicroorganisms,particles,organicpolymersanddeadcells,etc.(Hargreaves,2006).Amongwhich,heterotrophicbacteriaconvertefficientlytheammonianitrogenintothebacterialprotein,whichprovidesthesupplementaryfeedforcultureanimalsandreducesthenitrogenlevelintheculturesystem(DeSchryveretal,2008).Intheclosedaquaculturesystem,thegrowthof

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简介：ThispaperdescribesafullchannelTVmodulatorforallTVsystems,whichhasbeendevelopedsuccessfully.ItemploysadvancedtechniquesuchasPLLfrequencysynthesizerwithmicrowaveintegratedcircuit,andwidebandmicrostripVCOanddigital-analogcombinedintegratedcircuits.Thekeytechniqueofthemodulatorissettledsuccessfully.AllthespecificationsofthemodulatoragreewithTechnicalStandardofChina,whicharetestedbytheauthorityofChina.