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简介：Ore-cokemixedchargingisapotentialtechniqueforoptimizingthechargingpattern.Recently,thechargingofsmall-sizedcoke(nutcoke)withtheferrousburdenlayerhasbeenappliedtoreducerawmaterialusageanddecreasecosts.Variousstudiesindicatethatmixingnutcokewithferrousburdencanenhancethereductionkinetics,improvethesofteningandmeltingproperties,andhaveapositiveeffectonthepermeability.Althoughmixedcharging,especiallytheadditionofnutcoketotheburdenlayer,hasbeenusedintheindustryforvariousreasons,themechanismsandsideeffectsforusingnutcokearenotwellunderstood,andthemixingratioremainslimitedinactualblastfurnaceoperation.High-temperatureexperimentalstudieswereconductedtoincreasetheunderstandingofthecomplexprocessofreduction,softeningandmeltingproperties,andpermeabilityinablastfurnacewhenmixingnutcokewithanorelayer.Theeffectofthenutcokemixingratioandnutcokesizewasinvestigatedundervariousreducingconditions.Todescribethereductionprocessesofburdenmaterials,numerousexperimentswereinterruptedatdifferentstagesofthereduction,andthecollectedmaterialswereexaminedbyusingimageanalysis.Thereductiondegreeofmixedcharging(ironoremixingwithnutcoke)wasimprovedwhenusingnutcokeatthetemperaturesof800℃andabove.Thereactionrateofore-nutcokemixedchargingwashigherthanthatofstandardchargingwithouttheuseofnutcoke.

简介：从高斯扁平软帽Chern定理，NUT-Kerr-Newman黑洞的Euler特征被计算是从0～2的一些分离数字。我们发现兜售Bekenstein熵是在由在熵和Euler特征之间的关系考虑的拓扑学的最大的熵。NUT-Kerr-Newman黑洞与集体、尖动量的变化从像花托的拓扑的结构演变到球形的结构，电并且坚果费用。在这个过程，Euler特征和熵不连续地被改变，它给NUT-Kerr-Newman黑洞的一阶的阶段转变的拓扑的方面。拓扑的阶段转变的相应的潜伏的热也被获得。从星演变的黑洞的估计的潜伏的热就躺在鲸鱼群妈光线爆炸的精力的范围。

简介：Thechargingpatternmayaffectblastfurnacepermeability,cokeratio,andthefreedomtoselectlow-graderawmaterials.Ore-cokemixedchargingisapotentialtechniqueforoptimizingthechargingpattern.Inrecentyears,chargingsmall-sizedcoke(nutcoke)intotheburdenlayerhasbeenappliedtosaverawmaterialsanddecreasecost.Althoughmixedcharging,especiallyaddingnutcokeintotheburdenlayer,mayhavemanyadvantages,themechanismsandsideeffectsofnutcokeusearenotwellunderstood,andthemixingratioisstilllimitedinindustrialblastfurnaceoperation.Inthisstudy,thestatusofmixedcharging,especiallynutcokeusedinblastfurnaces,wasinvestigated.Acoldflowmodelwasestablishedtostudythepermeabilityofthepackedbedintheblastfurnace"dryzone"underdifferentconditionswiththeaimofbetterunderstandingthemechanismsofmixingcokeandnutcokeintotheburdenlayer.Theeffectofcokesize,mixingcokeratio,layernumbers,andgasflowrateonthepressuredropofthepackedbedwasinvestigated.Theexperimentalresultsshowthatmixingthenutcokeintheorelayersdecreasesthepressuredroptodifferentextentsdependingonmixingratio.

简介：摘要目的分析5例鼻腔鼻窦NUT基因相关性癌（NUT中线癌）临床及影像学表现。方法回顾性分析2016年1月至2020年12月间首都医科大学附属北京同仁医院经免疫组化病理证实的5例鼻腔鼻窦NUT中线癌患者。男1例、女4例，年龄15~48岁，中位年龄19岁。术前均接受CT和MR检查，收集患者临床资料。观察肿瘤位置、CT密度、骨质改变、钙化、肿瘤大小、T1WI及T2WI信号、扩散加权成像（DWI）信号及表观扩散系数（ADC）、动态增强扫描时间-信号强度曲线（TIC）类型。随访患者治疗和预后情况。结果5例NUT中线癌均为T4期，发生于鼻腔、筛窦、蝶窦、上颌窦1例，鼻腔、上颌窦1例，鼻腔、筛窦3例。CT呈等密度3例，密度不均匀伴局部坏死2例；钙化3例；骨质侵蚀4例，骨质侵蚀伴骨质破坏1例。MRI横断面最大径4.2~4.9 cm，中位数4.5 cm。与邻近颞肌相比，T1WI呈等信号5例，2例局部可见低信号；T2WI呈等信号3例，2例呈稍高信号。增强后强化不均匀，轻度强化3例，中等强化2例。TIC Ⅲ型（速升流出型）3例，Ⅱ型（速升平台型）2例。DWI信号均不同程度增高，ADC值为0.63×10-3~1.17×10-3 mm2/s，中位数0.84×10-3 mm2/s。病理Ki-67增殖指数为30%~80%，免疫组化均为NUT阳性、INI-1阳性。5例NUT中线癌1例行活检后化疗，其余4例均行手术加放疗，1例合并化疗。随访时间7~16个月，均带病存活。结论NUT中线癌是一种鼻腔鼻窦少见的基因相关恶性实体肿瘤，多见于年轻患者，以鼻腔及筛窦多见，侵袭性生长，CT钙化多见，MRI增强后不均匀轻度强化为其特点。

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