|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 在心血管的疾病的先进 glycation 结束产品的角色显示文摘 Advanced glycation end products(AGEs) are produced through the non enzymatic glycation and oxidation of proteins,lipids and nucleic acids.Enhanced formation of AGEs occurs particularly in conditions associated with hyperglycaemia such as diabetes mellitus(DM).AGEs are believed to have a key role in the development and progression of cardiovascular disease in patients with DM through the modif ication of the structure,function and mechanical properties of tissues through crosslinking intracellular as well as extracellular matrix proteins and through modulating cellular processes through binding to cell surface receptors [receptor for AGEs(RAGE)].A number of studies have shown a correlation between serum AGE levels and the development and severity of heart failure(HF).Moreover,some studies have suggested that therapies targeted against AGEs may have therapeutic potential in patients with HF.The purpose of this review is to discuss the role of AGEs in cardiovascular disease and in particular in heart failure,focussing on both cellular mechanisms of action as well as highlighting how targeting AGEs may represent a novel therapeutic strategy in the treatment of HF. | Zeinab Hegab Stephen Gibbons Ludwig Neyses Mamas A Mamas | 2012 | World Journal of Cardiology2012，4，4： | 58 |
| 2 | Endoscopic resection techniques for colorectal neoplasia:Current developments显示文摘Endoscopic polypectomy and endoscopic mucosal resection(EMR) are the established treatment standards for colorectal polyps. Current research aims at the reduction of both complication and recurrence rates as well as on shortening procedure times. Cold snare resection is the emerging standard for the treatment of smaller(< 5 mm) polyps and is possibly also suitable for the removal of noncancerous polyps up to 9 mm. The method avoids thermal damage, has reduced procedure times and probably also a lower risk for delayed bleeding. On the other end of the treatment spectrum, endoscopic submucosal dissection(ESD)offers en bloc resection of larger flat or sessile lesions. The technique has obvious advantages in the treatment of high-grade dysplasia and early cancer. Due to its minimal recurrence rate, it may also be an alternative to fractionated EMR of larger flat or sessile lesions. However, ESD is technically demanding and burdened by longer procedure times and higher costs. It should therefore be restricted to lesions suspicious for high-grade dysplasia or early invasive cancer.The latest addition to endoscopic resection techniques is endoscopic fullthickness resection with specifically developed devices for flexible endoscopy.This method is very useful for the treatment of smaller difficult-to-resect lesions,e.g., recurrence with scar formation after previous endoscopic resections. | Franz Ludwig Dumoulin Ralf Hildenbrand | 2019 | World Journal of Gastroenterology2019，25，3： | 35 |
| 3 | 中德学生数学建模能力水平的比较分析——以中国上海和德国巴登符腾堡州学生为例显示文摘近期参照的数学建模能力水平分析框架,对中国上海以及德国巴州的一千余名9~11年级学生进行实验研究。结果表明,中德学生的数学建模能力的平均水平非常接近,但是从各个不同的能力水平看,两国学生的成绩存在着一定的差异;另外发现学生的数学建模能力随着年级的升高也不断发展。透过结果发现,中学生数学建模能力薄弱,上海学生的基本技能有滑坡倾向;另外需把握开展数学建模教学的最佳时机。 | 徐斌艳 Matthias Ludwig | 2008 | 上海教育科研2008，，8： | 23 |
| 4 | 等轴球晶凝固多相体系内热溶质对流、补缩流及晶粒运动的数值模拟 Ⅰ.三相流模型显示文摘基于Eulerian-Eulerian方法和体积元平均技术,建立了模拟等轴球晶凝固过程的液、固、气三相流模型.液、固两相处理成相互分离、相互扩散的介质,气相与液、固两相只存在热量及动量的相互作用,三相(凝固前)作为自由流体共享一个统一的压力场.分别求解三相的质量、动量、溶质、热焓守恒方程;相间的热量交换和摩擦拖拽以及液/固界面上的溶质再分配和凝固潜热释放,通过定义对应守恒方程的源项和交换项而加以考虑;另外,单独求解一个晶粒密度守恒方程.晶粒的形核生长(相变) 也加以模型化并体现在对应的源项中,模型中所用的密度定义为溶质与温度的函数,因此可综合考虑热溶质对流、晶粒运动及凝固收缩所引起的补缩流动.凝固过程的体积收缩及补缩流动将体现在气/液自由表面的波动上. | 王同敏 姚山 张兴国 金俊泽 M Wu A Ludwig B Pustal A Bührig-Polaczek | 2006 | 金属学报2006，42，6： | 18 |
| 5 | survivin、XIAP在骨髓增生异常综合征患者及其细胞株MUTZ-1中的表达及意义显示文摘目的 研究骨髓增生异常综合征 (MDS)患者及MDS RAEB细胞株MUTZ 1凋亡蛋白抑制因子survivin、XIAP的表达和高三尖杉酯碱 (HHT)诱导MUTZ 1细胞凋亡的作用机制。方法 以 4 7例初发MDS患者及 15名异基因骨髓移植志愿供者为研究对象 ,应用RT PCR方法检测survivin、XIAPmRNA表达 ;采用流式细胞术分析MDS RAEB细胞系MUTZ 1细胞凋亡和细胞周期变化 ,RT PCR技术检测survivin、XIAP在MUTZ 1中的表达 ;研究survivin反义寡脱氧核苷酸 (AS ODN)和HHT对细胞增殖、凋亡的影响。结果 MDS患者survivinmRNA总阳性率高于正常对照组 (分别为 38.3%和 0 ,P <0 .0 1) ,高危组 (RAEB、RAEB t、CMML)阳性率高于低危组 (分别为 5 3.6 %和 16 .7% ,P <0 .0 5 )。MDS患者及正常对照均表达XIAP ,但表达水平不同 ,其中低危组XIAPmRNA(0 .74± 0 .2 4 )低于正常对照组 (1.0 1±0 2 8) (P <0 .0 5 ) ,高危组XIAPmRNA表达 (1.5 5± 0 .34)高于低危组及正常对照组 (P值均 <0 .0 1)。HHT能诱导MUTZ 1细胞凋亡 ,凋亡率与作用浓度和时间呈正相关 ,细胞被阻滞在G2 期 ;HHT作用MUTZ 1细胞 6h后细胞内survivin表达下调 ,而XIAP表达无明显变化。survivinAS ODN能明显抑制细胞增殖及诱导细胞凋亡 ,并提高MUTZ 1细胞对HHT的敏感性。结论 凋亡? | 蔡真 包悍英 Wolf-Dieter Ludwig Christian Wuchter | 2004 | 中华血液学杂志2004，25，1： | 18 |
| 6 | 传统DNA疫苗载体与Semliki森林病毒复制子对HIV-1 Pr55^(gag)表达与体液免疫原性的比较性研究显示文摘为探索Semliki森林病毒 (SFV)衍生的复制型DNA载体可否用于HIV疫苗的候选载体 ,对该载体与传统DNA疫苗载体对HIV - 1Pr5 5 gag的表达与体液免疫原性进行了系统比较研究。将野生型 (wtgag)及密码子改造(syngag)的HIV - 1ⅢBgag 基因分别克隆于SFVDNA载体及传统DNA疫苗载体 [pCDNA3 1(+) ],对其Pr5 5 gag细胞内表达水平、Pr5 5 gag病毒样颗粒释放、以及在BALB/c鼠的体液免疫原性进行了比较。在 2 93T、H12 99、C2C12和BHK细胞系中 ,SFV -wtgag可以Rev非依赖方式有效表达Pr5 5 gag ,而 pC -wtgag转染的细胞不能有效表达Pr5 5 gag,从而不能诱导小鼠产生免疫反应。虽然SFV质粒的细胞转化效率明显低于pCDNA载体 ,SFV -wtgag和SFV -syngag在细胞内Pr5 5 gag的表达量与 pC -syngag相似 ,而Pr5 5 gag病毒样颗粒的释放明显低于 pC -syngag。在肌内注射免疫的小鼠中 ,低剂量 (0 1和 1 0 μg)的SFV及 pCDNAgag表达质粒均未诱导出GAG特异性免疫反应。在高剂量 (10 ,30 ,10 0 μg)免疫组中 ,与SFVgag表达质粒相比 ,pC -syngag可诱导出较高水平的TH1型GAG特异性抗体。SFV -syngag较SFV -wtgag可诱导出高水平的体液免疫反应。结果提示 ,SFV衍生的复制子单独使用不能在小鼠诱导出优于传统DNA疫苗载体的HIV - 1GAG特异性? | 张健慧 Jens Wild Kurt Bieler Marcus Graf Ludwig Deml Hans Wolf PeterLiljestrm Ralf Wagner 邵一鸣 | 2002 | 病毒学报2002，18，1： | 13 |
| 7 | 高三尖杉酯碱通过激活Caspase-3诱导T-淋巴细胞白血病细胞Molt-3凋亡显示文摘目的 :研究高三尖杉酯碱 (HHT)诱导T 淋巴细胞白血病细胞凋亡的作用机制。方法 :采用流式细胞仪等技术对HHT诱导T 淋巴细胞白血病细胞 (Molt 3)的凋亡作用进行探讨。结果 :HHT诱导Molt 3凋亡 ,凋亡率与作用浓度和时间成正比 ;细胞被阻滞在G1期。HHT作用 2 4h后细胞内Caspase 3活性增高 ,Caspase 3抑制剂Z DEVD FMK能特异地阻断HHT对Molt 3凋亡的诱导 ;Fas抗体可诱导细胞凋亡 ,但HHT对Fas受体 配体途径无影响。结论 :HHT对T 淋巴细胞白血病细胞的促凋亡作用和激活Caspase 3有关。 | 蔡真 林茂芳 Wolf-Dieter Ludwig Leonid Karawajew Zhihai Qin | 2000 | 中国免疫学杂志2000，16，11： | 12 |
| 8 | 中学生数学建模能力水平的实验分析显示文摘 | 徐斌艳 LUDWIG Matthias | 2007 | 中学数学月刊2007，，11： | 12 |
| 9 | Ca^(2+) signalling in cardiovascular disease:the role of the plasma membrane calcium pumps显示文摘The plasma membrane calcium ATPases(PMCA) are a family of genes which extrude Ca2+from the cell and are involved in the maintenance of intracellular free calcium levels and/or with Ca2+signalling,depending on the cell type.In the cardiovascular system,Ca2+ is not only essential for contraction and relaxation but also has a vital role as a second messenger in signal transduction pathways.A complex array of mechanisms regulate intracellular free calcium levels in the heart and vasculature and a failure in these systems to maintain normal Ca2+homeostasis has been linked to both heart failure and hypertension.This article focuses on the functions of PMCA,in particular isoform 4(PMCA4) ,in the heart and vasculature and the reported links between PMCAs and contractile function,cardiac hypertrophy,cardiac rhythm and sudden cardiac death,and blood pressure control and hypertension.It is becoming clear that this family of calcium extrusion pumps have essential roles in both cardiovascular health and disease. | Elizabeth J.CARTWRIGHT Delvac OCEANDY Clare AUSTIN Ludwig NEYSES | 2011 | Science China(Life Sciences)2011，54，8： | 12 |
| 10 | Effects of ghrelin on interdigestive contractions of the rat gastrointestinal tract显示文摘Ghrelin causes interdigestive contractions of the stom- ach in rats. However, it remains unknown whether ghrelin causes interdigestive contractions in the small intestine. Four strain gauge transducers were implanted on the antrum, duodenum, proximal and distal jejunum. After an overnight fast, gastrointestinal (GI) contrac- tions were recorded in freely moving conscious rats. Spontaneous phase Ⅲ-like contractions were observed at every 13-16 min in rat GI tract. The fasted motor patterns were replaced by the fed motor pattern immediately after food intake. Two minutes after f inishing the spontaneous phase Ⅲ-like contractions in the antrum, acyl ghrelin (0.8, 2.4 and 8.0 μg/kg per min) was con- tinuously infused for 30 min. Three-f ive minutes after the starting ghrelin infusion, augmented phase Ⅲ-like contractions were observed at the antrum, duodenum, and jejunum. Ghrelin infusion (0.8, 2.4 and 8.0 μg/kg per min) signif icantly increased motility index of phase Ⅲ-like contractions at the antrum and jejunum in a dose dependent manner, compared to that of saline in- jection. Thus, it is likely that exogenously administered ghrelin causes phase Ⅲ-like contraction at the antrum, which migrates to the duodenum and jejunum. The possible role of 5-HT, in addition to ghrelin, in mediating intestinal migrating motor complex (MMC), is discussed. | Hiroshi Taniguchi Hajime Ariga Kirk Ludwig Toku Takahashi | 2008 | World Journal of Gastroenterology2008，14，41： | 10 |
| 11 | Air/CO2 cooling garment: Description and benefits of use for subjects exposed to a hot and humid climate during physical activities显示文摘The severity of the hot and humid conditions to which miners are exposed increases as the depth of the work site increases.This can cause heat stress that can greatly affect the health and safety of workers.To resolve this,a cooling garment has been developed that uses an atmospheric discharge of liquid CO2 to create a cool microclimate with an average temperature of 12.5(±0.4)℃ beneath the garment.To evaluate the garment's cooling efficiency,19 male subjects participated in an experimental procedure.The two modes,cooling on and off,were compared.Significant physiological differences were found between the two modes after minute 27(p<0.05)until the end of the recovery phase for the heart rate(maximum difference of 10 beats per minute)and the internal body temperature(maximum difference of 0.33℃).It was found that the modes also affected the subjects'perceptions.The ON-mode was associated with better well-being and thermal comfort,and reduced humidity sensation.Perceptions of exertion were lower in the ON-mode condition from minute 2.The findings provide strong evidence of the ability of this cooling garment to reduce heat stress in hot and humid conditions similar to those encountered in deep mines. | Chady Al Sayed Ludwig Vinches Olivier Dupuy Wafa Douzi Benoit Dugue Stephane Halle | 2019 | International Journal of Mining Science and Technology2019，29，6： | 10 |
| 12 | 垃圾气化分析及其对中国实现碳中和与无废城市建设的贡献显示文摘气化是实现化学利用碳资源(尤其是煤)生产化学品和燃料的关键工艺。目前,全球拥有超过272套气化装置,主要应用于煤化工,尤其在中国。由于在一个化工厂通过技术集成达到工业规模的集中生产可实现减少二氧化碳排放并促进碳密集型行业的循环经济,如废物管理、化学和交通行业,因此,近年来全球对垃圾气化的兴趣日益浓厚,尤其是那些在煤气化技术方面积累了丰富的人力资本和运营经验以及拥有完整Coal-to-X产品价值链的国家,如中国,在挖掘通过垃圾气化实现Waste-to-X的潜力方面处于独特的地位。具体而言,废弃物可用于补充煤气化生产如下产品:(1)具有较低或零碳足迹的化学品,具体取决于废物是来源于化石资源还是生物资源。(2)来自生物废弃物的零碳足迹的绿色“氢”,以补充或替代来自煤气化或蒸汽重整得到的“灰色”氢,以供给氢能汽车,并推动工业脱碳。(3)来自生物废弃物的CO_(2)中性合成液体燃料,用于交通工具,以补充或替代石油燃料和合成煤制液体燃料。然而,迄今为止,利用垃圾作为气化原料的操作经验有限,并且文献中也很少涉及以前和当前的工业垃圾气化经验。为了填补这些空白,本研究介绍了1980年代至2000年代德国的两项开创性技术发展—贝伦拉特(Berrenrath)和SVZ黑水泵(即Sekundärrohstoff-Verwertungszentrum:黑水泵二次原料回收中心),并分享了以下三种垃圾与煤共气化技术(即Waste&Coal-to-X)的相关认识和经验教训:固定床气化:鲁奇干法排渣技术以及BGL熔渣气化技术。流化床气化:高温温克勒(HTW-High Temperature Winkler)气化工艺。气流床气化:GSP(Gaskombinat Schwarze Pumpe),即西门子气化工艺。此外,本研究也总结了目前全球100%垃圾气化技术的发展,即Waste-to-X。在气化技术的三种类型中,研发领域和工业界均对流化床与气流床(作为后期气化)技术的结合产生了浓厚的兴趣,这里介绍三个相关技术的重大发展—Ebara-Ube、Enerkem和ThermoChem Recovery International的技术。除此之外,固定床气化工艺的发展也得到了关注,本文介绍了两个相关技术的重大发展—InEnTec(将固定床与等离子气化相结合)和Sierra Energy(改造传统高炉转炉进行垃圾气化)的技术。借鉴以往和当前的国际发展经验,凭借其庞大的气化规模和丰富的专业知识,逐步将垃圾作为原料融入到煤气化中可以作为中国迈向循环经济和无废城市的第一步。将垃圾与煤共气化技术作为通向垃圾气化的桥梁,不仅可以使中国利用现有的人力资本和基础设施,还可以创造新的就业和商业机会,并支持中国实现可持续的垃圾管理策略,即在进行焚烧和填埋之前先进行减量、再利用和再循环。然而,将煤气化技术直接用于垃圾气化具有挑战性并且充满了较大的风险。本研究分享了贝伦拉特和SVZ黑水泵在垃圾与煤共气化方面遇到的各种运行问题以及从中得到的最新认识。然后介绍了这些积累的经验及认识是如何被考虑并应用到德国弗莱贝格工业大学的能源化工所开发的Flexi技术当中,包括:基于BGL熔渣气化技术开发FlexiSlag固定床气化技术。基于GSP气化技术开发FlexiEntrained气流床气化技术。基于HTW气化技术开发FlexiCOORVED气化技术。目前,Flexi技术在德国弗莱贝格开展中试规模运行,其目标是实现:(1)多元原料气化(例如生物质、煤、石油焦、不同类型的废物);(2)100%垃圾气化;(3)灵活的目标产品(即调整配置得到最大化的合成气产出,其中可含有最大化或最小化的甲烷、焦油和油的含量)以支持全球向碳中和和无废城市转型。鉴于全球(包括中国)实现无废城市和碳中和的目标,垃圾气化技术的长远发展不仅要向100%垃圾气化发展,还必须满足以下可持续性标准才能做出实质性的贡献:(1)多元进料,能够灵活利用多种类型的(废物)原料。(2)碳回收率最大化,以确保垃圾中的碳转移到产品中,而不是在整个过程链中以CO_(2)的形式排放到环境中。(3)通过生产玻璃渣、从渣中回收金属和零废水排放,将环境影响降至最低。本研究最后根据上述三个可持续性标准对三种气化类型进行了定性的整体评价,阐述了它们在垃圾气化应用中的优势和劣势。 | LEE Roh Pin SEIDL Ludwig Georg HUANG Qiu-liang MEYER Bernd | 2021 | 燃料化学学报2021，49，8： | 10 |
| 13 | Design,delivery and efficacy testing of therapeutic nucleic acids used to inhibit hepatitis C virus gene expression in vitro and in vivo显示文摘Despite major achievements in the treatment ofchronic hepatitis C with the combination ofinterferons and the nucleoside analog ribavirin themajority of patients with chronic hepatitis C virus(HCV) infection cannot be treated effectively.Toimprove this response rate we used antisensetechnologies to inhibit HCV translation as possibleadditional option for experimental treatment.Antisense oligodeoxynucleotides(ODN) are | Wolfgang H.Caselmann Matthias Serwe Thomas Lehmann János Ludwig Brian S.Sproat Joachim W.Engels | 2000 | World Journal of Gastroenterology2000，6，5： | 9 |
| 14 | 温度对铝酸盐水泥基三元体系早期水化的影响显示文摘采用X射线衍射仪、环境扫描电子显微镜(背散射电子成像)、压汞仪分析了养护温度对铝酸盐水泥-硅酸盐水泥-无水石膏三元体系水化早期的水化相组成、抛光断面微观结构和孔结构等微结构演变的影响。结果表明:无论0℃还是40℃养护,三元体系的主要水化产物始终为水化硫铝酸钙类物相;但养护温度越高,所生成的钙矾石越易向单硫型水化硫铝酸钙转变,且转变得越早,所得硬化浆体的最可几孔径越大。此外,40℃养护3 d后的浆体中还生成了水化钙铝黄长石和三水铝石。 | 徐玲琳 李楠 王培铭 吴凯 Horst.Michael LUDWIG | 2016 | 硅酸盐学报2016，44，11： | 9 |
| 15 | Genome-wide MicroRNA Expression Profiles in COPD: Early Predictors for Cancer Development显示文摘Chronic obstructive pulmonary disease(COPD) significantly increases the risk of developing cancer. Biomarker studies frequently follow a case-control set-up in which patients diagnosed with a disease are compared to controls. Longitudinal cohort studies such as the COPD-centered German COPD and SYstemic consequences-COmorbidities NETwork(COSYCONET) study provide the patient and biomaterial base for discovering predictive molecular markers. We asked whether microRNA(miRNA) profiles in blood collected from COPD patients prior to a tumor diagnosis could support an early diagnosis of tumor development independent of the tumor type. From 2741 participants of COSYCONET diagnosed with COPD, we selected 534 individuals including 33 patients who developed cancer during the follow-up period of 54 months and 501 patients who did not develop cancer, but had similar age, gender and smoking history. Genome-wide miRNA profiles were generated and evaluated using machine learning techniques. For patients developing cancer we identified nine miRNAs with significantly decreased abundance(two-tailed unpaired t-test adjusted for multiple testing P < 0.05), including members of the miR-320 family. The identified mi RNAs regulate different cancer-related pathways including the MAPK pathway(P = 2.3 x 10^(-5)). We also observed the impact of confounding factors on the generated miRNA profiles, underlining the value of our matched analysis. For selected miRNAs, qRT-PCR analysis was applied to validate the results. In conclusion, we identified several miRNAs in blood of COPD patients, which could serve as candidates for biomarkers to help identify COPD patients at risk of developing cancer. | Andreas Keller Tobias Fehlmann Nicole Ludwig Mustafa Kahraman Thomas Laufer Christina Backes Claus Vogelmeier Caroline Diener Frank Biertz Christian Herr Rudolf A. Jorres Hans-Peter Lenhof Eckart Meese Robert Bals | 2018 | Genomics, Proteomics & Bioinformatics2018，16，3： | 9 |
| 16 | 羟乙基甲基纤维素对硫铝酸盐水泥早期水化的影响显示文摘采用超声/电声谱仪、低场核磁共振仪、量热仪研究了羟乙基甲基纤维素(HEMC)对硅酸盐水泥和快硬硫铝酸盐水泥(CSA)早期水化的影响。测试了砂浆的保水性、含气量等宏观性能。结果表明:HEMC均显著提高了新拌砂浆的保水性和含气量,但对水泥浆体ζ电位的影响截然不同——HEMC的掺入大幅缩短了硅酸盐水泥浆体ζ电位变正的时间,却仅使快硬CSA浆体ζ电位的绝对值略微减小。此外,HEMC掺入后,水泥浆体横向弛豫时间分布曲线在100~1000 ms内出现新的弛豫峰。对硅酸盐水泥水化而言,3 d后此峰基本消失;而快硬CSA浆体120 min时此峰便已消失,表明HEMC在快硬CSA颗粒表面的吸附作用弱,因此不同于HEMC对硅酸盐水泥水化反应显著的延缓作用,HEMC几乎不影响快硬CSA早期水化放热。 | 吴凯 康旺 徐玲琳 Andreas HECKER Horst-Michael LUDWIG 王培铭 | 2020 | 硅酸盐学报2020，48，5： | 8 |
| 17 | 猪附红细胞体病诊断及防控显示文摘在猪病诊疗技术专场.德国霍恩海姆大学LudwigE.Hoel—zle教授、美国衣阿华州立大学Jeffrey J.Zimmerman教授、美国爱荷华州立大学TanjaOpriessnig剐教授、南京农业大学姜平教授、华南农业大学黄毓茂教授等分别就猪附红细胞体病诊断及防控、口腔液对猪群的健康管理、蓝耳病的诊断与防控、猪繁殖障碍疾病的病因分析与防控技术、猪病毒性腹泻流行特点与防控等议题作了精彩的报告。为使更多的读者受益于本次大会,本刊记者对部分专家的报告录音进行了整理.现刊发如下,以飨读者。 | Ludwig E.Hoelzle | 2012 | 中国猪业2012，9，11： | 8 |
| 18 | 稻壳灰对铝酸盐水泥早期水化的影响显示文摘用量热仪、联合热分析仪、扫描电镜分析了稻壳灰(20%及40%质量分数)对铝酸盐水泥水化进程(水化放热、水化程度等)的影响机制。结果表明:稻壳灰掺量为20%时,所得浆体28 d龄期内(1、3、14、28 d)的抗压强度均高于其他样品;稻壳灰自身虽基本无水化活性,但40%质量分数以内替代铝酸盐水泥,均在不同程度上加速了1 d内的水化放热,且可以显著提高铝酸盐水泥的水化程度,20%的掺量便使铝酸盐水泥3 d龄期的水化程度提高了约20%。 | 徐玲琳 吴凯 王培铭 Horst-Michael LUDWIG | 2016 | 硅酸盐学报2016，44，8： | 7 |
| 19 | 大数据升级制造企业供应链管理显示文摘'中国制造2025'战略,让中国制造业开始了从'中国制造'到'中国智造'的转型之路,意味着传统制造企业必须实现智能制造的转型升级来应对来自市场的机遇和挑战。智能制造作为'中国制造2025'的核心,以制造技术的数字化、智能化为重点,通过互联网与制造融合,运用工业大数据技术帮助传统制造业转型为数字化企业。如何利用大数据驱动智能工业,助力中国企业从'中国制造'走向'中国智造'成为制造业不可回避的迫切挑战。 | Helmuth Ludwig | 2015 | 互联网经济2015，，7： | 7 |
| 20 | 等轴球晶凝固多相体系内热溶质对流、补缩流及晶粒运动的数值模拟 Ⅱ.模型的应用显示文摘利用等轴球晶三相凝固模型模拟了A356铝合金半固态浆料冷却斜槽法制备过程,研究了晶粒密度、尺寸及固相分数的分布与工艺参数的关系.结果表明,在斜槽浇注处晶粒形核密度最大,在斜槽末端晶粒尺寸、固相分数最大,在铸型中这三者的最终分布大致均匀.适当降低浇注温度有助于提高斜槽上形核密度和固相分数及降低晶粒尺寸.此外,还模拟了热溶质对流及补缩流在Al-4%Cu(质量分数)合金等轴球晶凝固过程所起的作用,以及晶粒运动及补缩流对合金自由表面和宏观偏析形成的影响.结果表明,凝固初期热对流及补缩流为主导,凝固中期热溶质对流为主导,凝固后期补缩流为主导;晶粒运动受阻程度直接影响自由表面形状,补缩流考虑与否导致完全不同的宏观偏析图.实验测得晶粒尺寸与模拟结果分布较相似,但其绝对值存在较大差异. | 王同敏 李廷举 曹志强 金俊泽 T Grimmig A Bührig-Polaczek M Wu A Ludwig | 2006 | 金属学报2006，42，6： | 7 |
您所在的机构暂未开通此部分的功能，请联系管理员