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Optimisation of the Design of Pulverised Coal Injection Lances:From Concept to Full Scale Implementation at BlueScope steel’s BF6

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Optimisation of the Design of Pulverised Coal Injection Lanc...

第五届国际炼铁科技大会

作者： Daniel Maldonado paul Zulli Peter Austin Mark Walsh John Mathieson Harold Rogers BlueScope steel Research Port Kembla BlueScope steel Ironmaking Department Port Kembla BHP Billiton-Newcastle Technology Centre

Pulverised coal injection started at BlueScope steel’s Port Kembla blast furnaces in 2002. With significant economic advantages to reduce consumption of coking coal via increasing the quantity of pulverised coal injected to the blast furnaces, a three-dimensional numerical model of the blowpipe/tuyere/raceway has been developed. The model has been applied in various plant-specific investigations of blast parameters, and more recently in the development of alternate coal injection lance tip geometries. The designs with the highest potential for increasing coal burnout included swirl and high dispersive tip designs. The reduction in char load entering the furnace for the best performing alternate designs was due to an increase in coal dispersion compared with the conventional design. A full-scale trial of the swirl lance design was carried out at Port Kembla’s BF6 in mid-2008. The trial delivered promising results, with PCI rates maintained. This was despite unrelated changes to the coke ash content and the burden mix fed to the furnace, which would normally reduce furnace permeability.

关键词： coal combustion modelling injection lance tip design char burnout

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2002款轻型卡车维修服务特别报道

汽车维修与保养 2002年第5期 18-21页

作者： paul Weissler 子瑶

21世纪的今天,轻型卡车和运动型轿车(SUV)已占据了美国汽车市场50%以上的份额.车主对这些车辆的实用性要求越来越高,汽车厂商也乐于为此加大技术投入,以满足车主越来越挑剔的需求.原因非常简单:轻型卡车和SUV能承载更多的货物,牵引船只... 详细信息

21世纪的今天,轻型卡车和运动型轿车(SUV)已占据了美国汽车市场50%以上的份额.车主对这些车辆的实用性要求越来越高,汽车厂商也乐于为此加大技术投入,以满足车主越来越挑剔的需求.原因非常简单:轻型卡车和SUV能承载更多的货物,牵引船只或拖车,在泥泞、雪地和越野路面上平稳地奔驰,人们当然愿意掏腰包购买这些用途极为广泛的车型.但是,人们仍苛刻地追求豪华舒适的感受,还要求它们与同价位轿车具有相当的驾驶品质.

关键词：运动型轿车 SUN 轻型卡车维修

Rupture of the Thoracic Duct as a Result of Injury with Subsequent Development of Bilateral Chylothorax

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Open Journal of Thoracic Surgery 2012年第4期2卷 118-120页

作者： Thomas Bohrer Jens Christian paul Konrad Neukam Oscar Hernandez Christian O. Ritter Rudolf Hagen Clinic and Policlinic for ENT-Diseases Wuerzburg University Wuerzburg Germany Hospiten Riviera Maya Playa del Carmen Mexico Radiology Institute Wuerzburg University Wuerzburg Germany The Center of Operative Medicine Department of Cardiothoracic Surgery Wuerzburg University Wuerzburg Germany

We present a unique case of a 49-year-old woman presenting with a bilateral chylothorax sustained after minor injury. This condition developed secondarily to minor neck injury which resulted in left side cervical swelling. First treatment was conservative. Surgical intervention was nevertheless necessary to remove a cervical cyst contiguous with the thoracic duct.

关键词： Chylothorax Rupture of Thoracic Duct

轮状病毒G血清型和P基因型与腹泻严重程度的关系

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中华实验和临床病毒学杂志 2007年第2期21卷 144-146页

作者：张丽杰方肇寅曾光 Duncan steele 江保民 paul Kilgore 中国疾病预防控制中心病毒病预防控制所腹泻室北京100052 中国疾病预防控制中心 World Health Organization USA Centers for Disease Control and Prevention International Vaccine Institute

目的了解轮状病毒G血清型和P基因型与腹泻严重程度之间的关系。方法收集2001年8月至2003年7月4个监测点医院5岁以下住院腹泻儿童的粪便标本和临床信息，对标本进行轮状病毒检测和分型，根据Vesikari 20点评分法对轮状病毒腹泻患儿的严... 详细信息

目的了解轮状病毒G血清型和P基因型与腹泻严重程度之间的关系。方法收集2001年8月至2003年7月4个监测点医院5岁以下住院腹泻儿童的粪便标本和临床信息，对标本进行轮状病毒检测和分型，根据Vesikari 20点评分法对轮状病毒腹泻患儿的严重程度进行评分。结果当与P[8]基因型结合时，P[8]G1型和P[8]G3型患儿的严重程度评分分别为13分和12分，腹泻天数分别为6d和5d，G1型患儿中发热的比例高于G3型（97％与73％），而且发热患儿的最高体温G1型也高于G3型（39℃和38．6℃）。当与G3血清型结合时，P[4]G3和P[8]G3型腹泻严重程度评分无统计学差异，但P[4]型比P[8]型的腹泻天数长（分别为6．5d和5d），而P[8]型呕吐的最高次数比P[4]型多（分别为4次和3次）。结论当与P[8]型结合时，G1型腹泻比G3型腹泻严重。当与G3型结合时，P[4]和P[8]型腹泻严重程度评分无差异。

关键词：轮状病毒属血清分型基因型流行病学计量

海藻β-1,3葡聚糖对南美白对虾(Litopenaeus vannamei)生长性能及体成分的影响

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饲料工业 2014年第24期35卷 12-15页

作者：张志勇程宗佳柏世军姜思然 paul Horst 林黑着中粮营养健康研究院有限公司动物营养与饲料中心北京102209 美国ALGAL SCIENTIFIC公司密西根州48170 中国水产科学研究院南海水产研究所广东省渔业生态环境重点实验室广东广州510300

试验旨在观察海藻β-1,3葡聚糖对南美白对虾(Litopenaeus vannamei)生长性能、存活率及体成分的影响。选用初始体重(10.84±0.30)g的南美白对虾450尾,随机分为5个处理组,每组设3个重复,每个重复30尾虾,分别饲喂含海藻β-1,3葡聚糖为0、0... 详细信息

试验旨在观察海藻β-1,3葡聚糖对南美白对虾(Litopenaeus vannamei)生长性能、存活率及体成分的影响。选用初始体重(10.84±0.30)g的南美白对虾450尾,随机分为5个处理组,每组设3个重复,每个重复30尾虾,分别饲喂含海藻β-1,3葡聚糖为0、0.05%、0.10%、0.15%及0.20%的饲料,并命名为S-0.00%、S-0.05%、S-0.10%、S-0.15%和S-0.20%;饲养周期为60 d。结果显示,在0~32 d阶段,海藻β-1,3葡聚糖对南美白对虾的生长性能均无显著差异(P>0.05);但随着添加水平的上升,其成活率呈显著降低的趋势(P0.05);但0~60 d S-0.05%处理组的末均重、特定生长率及相对增重率均高于其它各组,且饲料系数低于其它处理组。各个处理组的对虾体成分中脂肪和灰分的含量均无显著性差异(P>0.05);但水分和蛋白含量差异明显,随着海藻β-1,3葡聚糖添加水平上升,水分呈现先下降再上升的趋势,但蛋白含量恰好相反,呈现先上升再下降的趋势。结果表明,以特定生长率及饲料系数作为评价指标,饲料中添加低水平(≤0.05%)的海藻β-1,3葡聚糖对南美白对虾有益,并可提高其体成分中蛋白含量。

关键词：海藻β-1,3葡聚糖南美白对虾生长性能体成分

Improvements To A Fast Affordable Sensitive Test For Hpv Detection In Resource-limited Regions

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Improvements To A Fast Affordable Sensitive Test For Hpv Det...

24th International Papillomavirus Conference and Clinical Workshop

作者： Sugi Ramachandran John Sellors Bernhard Weigl Roger Peck Attila Lorincz paul Eder Qiagen PATH PATH PATH Qiagen Qiagen

＜正＞The world disease burden of cervical cancer is disproportionately carried by resource-limited countries Most cases of cervical cancer are associated with a limited number of high-risk（HR）types of human papillomavirus（HPV）Whereas prophylactic vaccines for HPV 16 and 18 are expected to play a major role in the primary prevention of cervical cancer,HPV DNA testing and visual inspection with acetic acid（VIA）are promising alternatives to cervical cytology for s primary screening Methods within

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Radiofrequency catheter renal sympathetic nerve ablation for resistant hypertension

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Radiofrequency catheter renal sympathetic nerve ablation for...

第七届海峡两岸心血管科学研讨会

作者： Murray Esler Markus Schlaich paul Sobotka Rob Whitbourn Tony Walton Henry Krum Baker IDI Heart and Diabetes Institute

Background:In essential hypertension,renal noradrenaline(NA)spillover is commonly increased and in experimental hypertension renal sympathectomy abolishes the blood pressure *** renal sympathetic nerve ablation with catheter-based radiofrequency energy(Symplicity,Ardian Inc.)was tested in patients with resistant hypertension(SBP above 160 mmHg on 3 or more anti-hypertensive drugs,including a diuretic).Methods: Office blood pressure(BP)and safety data were acquired prior to,and at 1,3,6 and 12 months post-procedure. Whole body and renal noradrenaline spillover were measured with isotope dilution in a subset of 10 patients at baseline and 30 days ***:45 pts with a baseline mean office blood pressure of 177/ 101 mmHg(SD 20/15),(mean 4.7 antihypertensive medications)were studied;office blood pressures after procedure were reduced by 14/10,21/10,22/11,24/11,and 27/17 mmHg at 1,3,6,9,and 12 months,respectively. Thirty days after denervation,mean reduction in total renal noradrenaline spillover was 47%,P=0.023 (95%CI 28%～65%),and total body NA spillover was reduced 28%,P =0.043(95%CI 4%～52%).One intra-procedural renal artery dissection occurred before radiofrequency energy delivery without further *** other renal vascular complications were identified with short term repeat angiographic studies or with CTA or MRA 6 months after the ablations Conclusions:Renal sympathetic nerve ablation is associated with reduction of renal NA spillover indicative of disabling of renal efferent sympathetic *** renal sympathetic nerves from the kidney to the brain influence central sympathetic output,and the observed reduction of total body NA spillover suggests renal sympathetic afferent traffic is *** afferent nerve disabling is a significant cause of the reduction of BP, the effect is expected to be lifelong,since these nerves have little capacity for *** disabling of renal sympathetic nerves is associated with

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Understanding and improving the trapping and release efficiency of cryogenic modulation in comprehensive two-dimensional GC

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Understanding and improving the trapping and release efficie...

30th International Symposium on Capillary Chromatography、4th GC×GC Symposium、16th National Symposium and Exhibition on Chromatography,i.e. 1st Dalian International Symposium and Exhibition on Chromatography

作者： Philip J.Marriott Alain Chaintreau Frederic Begnaud paul D.Morrison Australian Centre for Research on Separation Science RMIT University GPO Box 2476VMelbourne 3001Australia Analysis ＆ Perception Firmenich SA Route des Jeunes 1CH-1211 Geneva 8Switzerland Analysis ＆ Perception Firmenich SA Route des Jeunes 1CH-1211 Geneva 8Switzerland Australian Centre for Research on Separation Science RMIT University GPO Box 2476VMelbourne 3001Australia

＜正＞Because of its essential role,the modulator is the most critical part of a GC×GC *** has been reported that a number of trapping anomalies have been observed during cryogenic modulation,however,few of these have appeared in the *** of these include the appearance of ‘double spots’for a single compound where more than one spot occurs at the same first dimension time,but different second dimension times in the 2D GC×GC *** will complicate quantification-and identification of compounds- ***,it has been observed that peaks might not be effectively ‘released’from the trapping region during the heating stage if the cooling is re-applied too quickly,or is too *** leads to extended bands within the 2D ***,any effect that leads to peak‘smearing’or a peak to be anything but a tight spot in the 2D space will be of *** improve the trapping and release capabilities of the longitudinally modulated cryogenic system（LMCS）,a number of different approaches have been investigated that modify the way the cryogenic process is applied,and to alter delay times between modulator *** were conducted using a range of temperature-modified operations,including ramped modulator temperature,constant oven/modulator temperature differential,and various constant modulator temperatures during analysis,for a range of different samples.

关键词： GC×GC Cryogenic modulation Cryogenic trapping Peak width

Calibration of Optical Systems for the Measurement of Microcomponents

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Calibration of Optical Systems for the Measurement of Microc...

International Conference on Experimental Mechanics 2008 (ICEM 2008)

作者： W.Osten G.Pedrini O.paul J.Gaspar Institute for Technical Optics University of Stuttgart

＜正＞Optical coherent techniques are well suited for the measurement of quantitative data of micro components but give only accurate results when calibrated systems are *** paper presents a strategy for the calibrati...

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