简介:摘要 :中国石油抚顺石化公司是生产 3#喷气燃料的定点单位,其组分为液蜡副产品拔头油和抽余油按一定比例调和而成。冰点是 3#喷气燃料的一项重要的指标,航空燃料的冰点是保证燃料中不出现固态烃类结晶的最低温度,若在飞机飞行过程中燃料系统中存在此类晶体 ,将会阻碍燃料通过飞机过滤器,由于飞机油箱中燃料温度随着飞行期间发生变化 ,温度降低幅度取决于飞行速度、高度和飞行持续时间 .所以燃料的冰点必须要低于油箱的最低操作温度才可以。本文对 3#喷气燃料冰点试验中出现的碎片及云雾状等现象进行解析,经分析论证解决生产问题。
简介:摘要目的评价窄谱强脉冲光冰点模式脱毛的疗效及安全性.方法对132例患者采用窄谱强脉冲光进行脱毛治疗,观察不同部位包括唇部、腋部、四肢及躯干部等治疗次数及疗效,并对效果及安全性进行评价.结果132例患者经连续治疗后均达到理想的脱毛效果,治疗后毛发明显减少,再生毛发细小、稀疏.腋部的总有效率为100%,双上肢为92%,双下肢为95??3%,躯干部为85??6%,唇部为70??4%.随着治疗次数的增加,疗效逐步提高.所有患者无明显疼痛感,均未出现色素沉着或减退、瘢痕等不良反应.结论窄谱强脉冲光冰点模式脱毛无明显疼痛,安全、快速、有效.关键词窄谱强脉冲光;脱毛;疗效EvaluationofCurativeEffectonHairRemovalwithFreezingmodebyNarrow-spectrumintensepulsedlightQiuShi,WanLimin,ShengYanli,ShiRuiping,WangHong,QiYanhong(DepartmentofDermatovenereology,ShunyiDistrictHospitalofBeijing,Beijing101300,China)CorrespondingauthorQiuShi,E-mailqsh0322@163??comAbstractObjectiveToevaluatetheefficacyandsafetyofhairremovalwithFreezingmodebyNarrow-spectrumintensepulsedlight(DPL)??MethodsForhairremovaltreatmentof132patientswithNarrow-spectrumintensepulsedlight(DPL650-950nm),curativeeffectandtreatmenttimeswereobservedondifGferentpartsincludingthelip,axillaries,limbsandtrunk??aswelltheadversereactionandregenerationofhairwereobservedin132patients??Thetreatmenteffectandsafetywasevaluatedatthesametime??ResultsAftercontinuoustreatmentwithNarrow-spectrumintensepulsedlight,132patientsallobtainedsatisfactoryeffects??Theclinicalmanifestationswereobviouslylesshair,theregenerationofsmallandsparsehair??Thetotalefficiencyonaxillaries,upperlimbs,Thelegs,trunk,lip,were100%,92%,95??3%,85??6%and70??4%respectively??ThetotaleffectiveratewasgraduallyheightenedwiththeincreaseinthenumberoftreatGment??Allpatientshadnosignificantpain,hypopigmentation,hyperpigmentation,andscar??ConclusionsNarrow-spectrumintensepulsedlightcanbeconsideredasanoKeoybvwioorudsspain,safe,fast,efficienttreatmentonhairremovalwithFreezingmode??Narrow-spectrumintensepulsedlight;HairRemoval;Curativeeffect中图分类号R730.5文献标识码B文章编号1008-6315(2015)12-1086-01
简介:摘要:本文介绍了航煤冰点测定过程中的各种影响因素,并对各影响因素进行实际数据的分析和验证,对影响航煤冰点测试的主要原因和次要原因展开深入的探讨,以此来提高航煤冰点测定的精确度和准确度。