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| 1 | 中国黄土磁颗粒分析及其古气候意义显示文摘本文运用岩石磁学方法,对各地黄土和古土壤样品进行低温磁化率、频率磁化率和低温剩磁退磁的研究,证明了黄土中的磁颗以顺磁(单畴和多畴,即>0.03μm)为特点,而古土壤以超顺磁(<0.03μm)为主要特征.黄土中的磁铁矿相对含量(占天然剩磁强度的百分比)比古土壤高,黄土频率磁化率的波谷、波峰分别与剖面黄土和古土壤的风化或土壤化程度相关,说明在黄土形成古土壤的成土过程中,是由于许多细小铁磁性矿物(磁赤铁矿和磁铁矿)生成,使其磁化率增高.这些细小铁磁性矿物的含量反映了古气候温湿程度的强弱和持续时间的长短. | 刘秀铭 刘东生 Friedrich Heller 许同春 | 1991 | 中国科学(B辑)1991，，6： | 62 |
| 2 | 华南早三叠世的古地磁学与大地构造显示文摘从华南几个具代表性地点的下三叠统灰岩中,获得了有意义的古地磁学初步结果.这些结果支持华南存在分离板块的设想.根据新近获得的地质与古地磁学证据,推断华南存在4个岩石图板块.它们是扬子(D=232.4°,I=-11.8°,K=28.2,α95=5.5°),湘桂(D=198.0°,I=32.2°,α95=12.9°),华夏(D=88.0°,I=13.0°,K=20.1,α95=9.1°)和海南(上二叠统D=338.2°,I=15.9°,K=10.2,α95=14.3°)板块.4个板块的古地磁极位分散,纬度差明显,并存在碰撞后的局部与区域性的旋转作用,尤其是顺时针旋转.华南早中生代的大地构造可理解为4个来自古特提斯和冈瓦纳的岩石圈碎块与欧亚大陆聚合作用的产物. | 陈海泓 孙枢 李继亮 许靖华 Maja.Haag Jom Dobson Friedrich Heller | 1994 | 地质科学1994，29，1： | 54 |
| 3 | 永磁同步电动机直接转矩控制方法的比较研究显示文摘提出一种用于永磁同步电动机的基于磁链误差矢量补偿的直接转矩控制(EFVC-DTC)策略,给出了磁链误差矢量的估计算法,并将该控制策略下的稳态和动态运行性能与常规DTC进行比较。仿真及实验结果表明EFVC-DTC可以使电力开关器件工作在基本固定的频率上,磁链和转矩脉动显著减小,比常规DTC具有更优越的稳态性能,而动态转矩响应几乎与常规DTC相同。 | 史涔溦 邱建琪 金孟加 Friedrich W.Fuchs | 2005 | 中国电机工程学报2005，25，16： | 44 |
| 4 | 中国黄土磁化率与第四纪古气候研究显示文摘本文以实验数据证明,黄土磁化率的高低与其经历的风化或土壤化强度密切相关,风化程度决定了磁铁矿的生成最及其颗粒的细小程度,从而决定了磁化率的高低。因此,与土壤化程度密切相关的中国黄土地层记录了第四纪古气候变化。 | 刘秀铭 刘东生 Friedrich Heller 许同春 | 1992 | 地质科学1992，27，A12： | 40 |
| 5 | 纳米碳化硅填充环氧树脂复合材料的摩擦磨损特性显示文摘 以提高环氧树脂的摩擦磨损性能为目的,研究了纳米碳化硅粒子填充环氧树脂复合材料的滑动干摩擦磨损特性,着重探讨纳米粒子表面接枝改性、纳米粒子含量、摩擦条件等对复合材料摩擦学性能的影响。通过对复合材料磨损表面的形貌分析,以及复合材料的热变形性能和表面硬度的测定,探讨了复合材料的磨损机理。结果表明,纳米碳化硅粒子能在很低的含量下提高环氧树脂耐磨性、并降低其摩擦系数,而经过接枝处理后的纳米碳化硅粒子填充复合材料的上述性能改善更为明显,耐磨性比环氧树脂提高近4倍,摩擦系数降低36%。这说明在SiC纳米粒子表面引入聚丙烯酰胺接枝链后,由于界面的强相互作用(包括化学键合与链纠缠),有效地提高了复合材料的抵抗裂纹引发能力等性能,从而有利于改善其摩擦学性能。 | 纪秋龙 章明秋 容敏智 WETZEL B FRIEDRICH K | 2004 | 复合材料学报2004，21，6： | 32 |
| 6 | 表面接枝改性纳米二氧化硅填充聚丙烯的结晶行为显示文摘应用差示扫描量热方法研究了纳米二氧化硅 (SiO2 )及其表面接枝改性对聚丙烯 (PP)结晶过程、等温与非等温结晶动力学的影响 ,并研究了上述等温结晶的熔融行为和平衡熔点 .研究发现纳米SiO2 具有明显的异相成核效应 ,能够提高PP的结晶温度、熔融温度、结晶度和结晶速率 ,但降低聚丙烯结晶的完善程度 .粒子的表面接枝处理 ,因改善了粒子与基体的亲和性而有利于粒子成核效应的提高 。 | 容敏智 章明秋 潘顺龙 Friedrich K. | 2004 | 高分子学报2004，14，2： | 31 |
| 7 | 取象比类——中医学隐喻形成的过程与方法显示文摘取象比类是中医学的核心方法论。'观物-取象-比类-体道'贯穿于中医学基本概念的形成、医理阐述和临床发展等各个方面,体现着'象-比-喻'的思维过程,并最终形成中医学中的隐喻、指导着临床实践、促进着中医学的发展。本文立足于中国传统隐喻研究的三大要素——'象、比、喻'提出并论证取象比类就是中医学隐喻形成的过程与方法。 | 兰凤利 Friedrich G. Wallner | 2014 | 自然辩证法通讯2014，36，2： | 26 |
| 8 | 纳米Al_2O_3填充环氧树脂复合材料的摩擦学性能显示文摘研究了干摩擦条件下纳米Al2O3微粒含量及其表面改性处理对环氧树脂基复合材料滑动摩擦磨损性能的影响.结果表明,经过表面化学接枝处理后,少量的纳米Al2O3(体积分数约0.24%)即可大幅度提高环氧树脂的摩擦磨损性能,起到显著的减摩和耐磨作用.复合材料的热变形稳定性、显微硬度及磨损表面形貌分析结果表明,对纳米Al2O3微粒进行适当的表面处理有利于加强纳米微粒同基体树脂的结合,从而改善复合材料的摩擦学性能. | 石光 章明秋 容敏智 KLAUS Friedrich | 2003 | 摩擦学学报2003，23，3： | 24 |
| 9 | 芦苇、香蒲和藨草3种挺水植物的养分吸收动力学显示文摘采用常规耗竭法研究了浅水富营养化湖泊———乌梁素海湖滨植被带3种挺水植物芦苇、香蒲和藨草对H2PO-4、NH+4、NO-3的吸收动力学特征及差异。结果表明:3种挺水植物吸收H2PO-4时,藨草的吸收速率显著大于芦苇和香蒲,但三者对低浓度H2PO-4的适应能力均无显著差异;藨草对NH+4和NO-3的吸收速率均显著大于芦苇和香蒲,且在低浓度NO-3环境下仍能吸收该离子,但对低浓度NH+4环境的适应能力较差;与藨草相比,香蒲对NH+4的亲和力最强,吸收低浓度NH+4的效果最好。3种植物对NH+4的吸收能力均大于NO-3。挺水植物的养分吸收特征具有物种特异性并受根系结构的影响。利用植物的养分吸收特征,在富营养化湖泊生态修复中适宜用藨草治理含高浓度H2PO-4,NH+4和NO-3的水体,修复到一定程度后再种植香蒲来维持水质。 | 张熙灵 王立新 刘华民 清华 刘东伟 王炜 梁存柱 Friedrich Recknagel | 2014 | 生态学报2014，34，9： | 22 |
| 10 | Error rate of multi-level rapid prototyping trajectories for pedicle screw placement in lumbar and sacral spine显示文摘ObjectiveFree 手小花梗螺丝钉放置有能与荧光检查,航行或一个其他的快速的原型练习指南模板被减少的小花梗穿孔的高发生。在我们为在腰部、骶的区域的小花梗螺丝钉放置的多水平模板的错误率是的学习, evaluated.MethodsA 盒子系列学习在 11 个病人上被执行。72 个螺丝钉用与选择激光 sintering 生产的 multilevel 练习指南模板被植入。根据外科手术前地定义的最佳的螺丝钉方向,螺丝钉误放的分析被执行。排水量,偏差和螺丝钉长度差别被测量。学习曲线也是 estimated.ResultsTwelve 螺丝钉(17%) 被放超过 3.125 从它在小花梗的中心的最佳的位置的公里。16 个螺丝钉(22%) 的尖端被错放超过 6.25 从预言的最佳的位置的公里。根据我们的预定义的目标, 19 个螺丝钉(26%) 不正确地被植入。在 10 种情况中,螺丝钉长度不正确地被选择:(1%) 1 拧紧太长,(13%) 9 是太短的。神经与血管的损害的临床的符号都没被观察。学习曲线是不足道显著(P = 0.129 ) 我们的学习,生产的过程和适用的多水平练习指南模板有的 .ConclusionIn 螺丝钉误放的 26% 机会。然而,那率不与小花梗穿孔发生和神经与血管的损害与一致。与到兼容研究的比较一起的这些事实使总结那可能多水平模板是令人满意地精确的并且与一个临床上无关的错误因素允许精确螺丝钉放置。因此,模板能潜在地为平淡的小花梗螺丝钉放置代表一个有用工具。 | Matjaz Merc Igor Drstvensek Matjaz Vogrin Tomaz Brajlih Tomaz Friedrich Gregor Recnik | 2014 | Chinese Journal of Traumatology2014，17，5： | 21 |
| 11 | From intestinal stem cells to inflammatory bowel diseases显示文摘The pathogenesis of both entities of inflammatory bowel disease (IBD), namely Crohn's disease (CD) and ulcerative colitis (UC), is still complex and under investigation. The importance of the microbial flora in developing IBD is beyond debate. In the last few years, the focus has changed from adaptive towards innate immunity. Crohn's ileitis is associated with a deficiency of the antimicrobial shield, as shown by a reduced expression and secretion of the Paneth cell defensin HD5 and HD6, which is related to a Paneth cell differentiation defect mediated by a diminished expression of the Wnt transcription factor TCF4. In UC, the protective mucus layer, acting as a physical and chemical barrier between the gut epithelium and the luminal microbes, is thin- ner and in part denuded as compared to controls. This could be caused by a missing induction of the goblet cell differentiation factors Hath1 and KLF4 leading to immature goblet cells. This defective Paneth and goblet cell differentiation in Crohn's ileitis and UC may enablethe luminal microbes to invade the mucosa and trigger the inflammation. The exact molecular mechanisms behind ileal CD and also UC must be further clarified, but these observations could give rise to new therapeutic strategies based on a stimulation of the protective innate immune system. | Michael Gersemann Eduard Friedrich Stange Jan Wehkamp | 2011 | World Journal of Gastroenterology2011，17，27： | 19 |
| 12 | Current status of adoption of no-till farming in the world and some of its main benefits显示文摘In 1999 no-tillage farming,synonymous of zero tillage farming or conservation agriculture,was adopted on about 45 million ha world wide,growing to 72 million ha in 2003 and to 111 million ha in 2009,corresponding to an growth rate of 6 million ha per annum.Fastest adoption rates have been experienced in South America where some countries are using no-tillage farming on about 70%of the total cultivated area.Opposite to countries like the USA where often fields under no-tillage farming are tilled every now and then,more than two thirds of the area under no-tillage systems in South America is permanently not tilled;in other words once adopted,the soil is never tilled again.The spread of no-tillage systems on more than 110 million ha world-wide shows the great adaptability of the systems to all kinds of climates,soils and cropping conditions.No-tillage is now being practiced from the artic circle over the tropics to about 50ºlatitude south,from sea level to 3,000 m altitude,from extremely rainy areas with 2,500 mm a year to extremely dry conditions with 250 mm a year.No-till farming offers a way of optimizing productivity and ecosystem services,offering a wide range of economic,environmental and social benefits to the producer and to the society.At the same time,no-till farming is enabling agriculture to respond to some of the global challenges associated with climate change,land and environmental degradation,and increasing cost of food,energy and production inputs.The wide recognition of no-till farming as a truly sustainable system should ensure the spread of the no-till technology and the associated practices of organic soil cover and crop rotation,as soon as the barriers to its adoption have been overcome,to areas where adoption is currently still low.The widespread adoption globally also shows that no-tillage farming cannot any more be considered a temporary fashion or a craze;instead largely through farmers’own effort,the system has established itself as a farming practice and a different way of thinking about sustainable agro-ecosystem management that can no longer be ignored by scientists,academics,extension workers,farmers at large as well as equipment and machine manufacturers and politicians. | Rolf Derpsch Theodor Friedrich Amir Kassam Li Hongwen | 2010 | International Journal of Agricultural and Biological Engineering2010，3，1： | 18 |
| 13 | Mineral and bone disorder and management in the China Dialysis Outcomes and Practice Patterns Study显示文摘Background:Despite a growing population of patients starting hemodialysis in China,little is known about markers of mineral bone disease(MBD)and their management.We present data on prevalence and correlates of hypocalcemia,hyperphosphatemia,and secondary hyperparathyroidism from the China Dialysis Outcomes and Practice Patterns Study(DOPPS),with evaluation of whether these laboratory markers triggered changes in management.Methods:We compared the frequency of measurement and prevalence of poor control of MBD markers in China DOPPS with other DOPPS regions.We also used generalized estimating equations to assess correlates of MBD markers,and separate models to assess predictors of vitamin D and phosphate binder prescriptions in the China DOPPS.Results:Severe hyperphosphatemia(>7 mg/dL)and secondary hyperparathyroidism(>600 pg/mL)were common(27%and 21%prevalence,respectively);both were measured infrequently(14.9%and 3.2%of patients received monthly measurements in China).Frequency of dialysis sessions was positively associated with hyperphosphatemia;presence of residual kidney function was negatively associated with both hyperphosphatemia and secondary hyperparathyroidism.Laboratory measures indicating poor control of MBD were not associated with subsequent prescription of active vitamin D or phosphate binder.Conclusions:There are substantial opportunities for improvement and standardization of MBD management in China.Development of country-specific guidelines may yield realistic targets and standardization of medication use accounting for availability and cost. | Jun Wang Brian A.Bieber Fan-Fan Hou Friedrich K.Port Shuchi Anand | 2019 | Chinese Medical Journal2019，，23： | 15 |
| 14 | Heat Shock Factors HsfB 1 and HsfB2b Are Involved in the Regulation of Pdf1.2 Expression and Pathogen Resistance in Arabidopsis显示文摘以便估计热的功能的角色在 Arabidopsis 的导致压力的班 B 热吃惊因素,我们调查了 AtHsfB1 和 AtHsfB2b 的 T-DNA 猛烈异种。在异种的 defensin 基因 Pdf1.2a/b 的基础 mRNA 水平的一条起来规定种的作为强壮揭示的两倍猛烈 hsfB1/hsfB2b 植物的 Micorarray 分析。Pdf 表示被 jasmonic 酸处理或感染进一步与 necrotrophic 真菌 Alternaria brassicicola 提高。单个变异的 hsfB2b 和双变异的 hsfB1/B2b 显著地在 A 以后在疾病抵抗被改进。brassicicola 感染。为和 Pdf1.2 的倡导者的 Hsf 的一个直接相互作用没有指示,它缺乏完美的 HSE 一致 Hsf 有约束力的序列。然而,在形成变化近来 HsfA2 依赖的 HSE 绑定在 hsfB1/B2b 植物被检测。这建议 HsfB1/B2b 可以在调整热吃惊反应的用以遮闭之物与班 A-Hsf 交往。Pdf 基因的鉴定作为 Hsf 依赖的否定规定的目标是为在关於生命、不能生活的回答的规定的 Hsf 的互联的第一条证据。 | Mukesh Kumar Wolfgang Busch Hannah Birke Birgit Kemmerling Thorsten Nurnberger Friedrich Schoffl | 2009 | Molecular Plant2009，2，1： | 15 |
| 15 | 河流景观生态学概念、理论基础与研究重点显示文摘较系统地概述了河流景观生态学概念、理论基础与研究重点及其在河流生态学研究中的应用。在河流景观视角下,将河流作为空间异质性的完整景观单元,而不仅仅是传统景观生态学研究中将河流作为采样点或线。河流景观生态学将景观生态学原理与方法应用于河流景观的空间分布、斑块、格局、时空尺度、异质性、干扰和联结性等研究之中,并作为其关键研究内容。此外,建议强化河流景观制图、河流生态系统健康评价与服务价值评估、河流生态系统修复以及河流景观管理等研究内容。总之,把河流生态系统视为'河流景观',将有助于从更加综合的视角和更普遍的概念框架开展河流乃至滨河湿地的研究与保护工作。 | 王立新 刘华民 刘玉虹 梁存柱 王炜 刘东伟 Friedrich Recknagel | 2014 | 湿地科学2014，12，2： | 14 |
| 16 | 云南思茅地区新生代的持续旋转显示文摘新生代早期(约45 Ma),印度板块在经历了长时期的北向漂移后终与欧亚大陆碰撞。其后,以印度洋的扩张作用为驱动力,印度板块持续向欧亚大陆推挤,使造山带地区产生大规模的陆壳缩短,造就了壮观的世界屋脊——青藏高原。70年代中期。 | 陈海泓 郝杰 Jon P.Dobson Friedrich Heller Kennech J.Hsū | 1993 | 科学通报1993，38，24： | 13 |
| 17 | 减摩耐磨用无机颗粒/高分子复合材料研究的进展显示文摘综述了减摩抗磨用无机颗粒 /高分子复合材料的最新研究进展 ,重点阐述了不同类型无机颗粒的作用机理及其对复合材料最终性能的影响 ,指出这类材料的发展趋势在于应用纳米填料 ,通过发展适当的分散技术 ,同时加强粒子与基体的结合 ,有可能克服现有微米颗粒复合材料中存在的缺点 。 | 纪秋龙 章明秋 容敏智 Klaus Friedrich | 2001 | 中国塑料2001，15，8： | 10 |
| 18 | Increased liver stiffness in alcoholic liver disease:Differentiating fibrosis from steatohepatitis显示文摘AIM:To test if inflammation also interferes with liver stiffness (LS) assessment in alcoholic liver disease (ALD) and to provide a clinical algorithm for reliable fibrosis assessment in ALD by FibroScan (FS).METHODS:We first performed sequential LS analysis before and after normalization of serum transaminases in a learning cohort of 50 patients with ALD admitted for alcohol detoxification. LS decreased in almost all patients within a mean observation interval of 5.3 d. Six patients (12%) would have been misdiagnosed with F3and F4 fibrosis but LS decreased below critical cut-off values of 8 and 12.5 kPa after normalization of trans-aminases. RESULTS:Of the serum transaminases,the decrease in LS correlated best with the decrease in glutamic oxaloacetic transaminase (GOT). No significant chang-es in LS were observed below GOT levels of 100 U/L. After establishing the association between LS and GOT levels,we applied the rule of GOT < 100 U/L for reliable LS assessment in a second validation cohort of 101 patients with histologically confi rmed ALD. By ex-cluding those patients with GOT > 100 U/L at the time of LS assessment from this cohort,the area under the receiver operating characteristic (AUROC) for cirrhosis detection by FS improved from 0.921 to 0.945 while specificity increased from 80% to 90% at a sensitivity of 96%. A similar AUROC could be obtained for lower F3 fibrosis stage if LS measurements were restricted to patients with GOT < 50 U/L. Histological grading of inflammation did not further improve the diagnostic accuracy of LS.CONCLUSION:Coexisting steatohepatitis markedly increases LS in patients with ALD independent of fibrosis stage. Postponing cirrhosis assessment by FS during alcohol withdrawal until GOT decreases to < 100 U/mL signif icantly improves the diagnostic accuracy. | Sebastian Mueller Gunda Millonig Lucie Sarovska Stefanie Friedrich Frank M Reimann Maria Pritsch Silke Eisele Felix Stickel Thomas Longerich Peter Schirmacher Helmut Karl Seitz | 2010 | World Journal of Gastroenterology2010，16，8： | 10 |
| 19 | Renminbi's Potential to Become a Global Currency显示文摘这份报纸是一试验描出的努力人民币到的潜力成为全球货币。它首先分析批评经济,金融并且被要求到的政策属性支持货币获得一个国际角色。中国是否有潜力获得这些属性,然后检验。纸由为亚洲和全球经济在含意上为一些提供临时的观察得出结论,人民币应该在来十年演变为世界货币。 | Friedrich Wu Rongfang Pan Di Wang | 2010 | China & World Economy2010，18，1： | 9 |
| 20 | Dielectrophoretic assembly of carbon nanotubes and stability analysis显示文摘Nanoscale dimensions and remarkable properties of carbon nanotubes make them promising building blocks for nanoelectronics.One requirement is the need to manipulate single or multiple carbon nanotubes to bridge electronic conductors.In this paper,multi-walled carbon nanotubes with a variety of sizes are assembled onto electrodes using alternative current electric felds by dielectrophoresis.The effect of the dielectrophoretic parameters and the nanotube size as well as the length uniformity on the assembly is experimentally investigated.Current–voltage characteristics of assembled carbon nanotubes are measured.The experimental results showed that both the dielectrophoretic parameters and length uniformity of carbon nanotubes have an infuence on the stability of assembly results.Choosing uniform carbon nanotubes with an appropriate length and suffcient stiffness,which are more controllable by dielectrophoresis,is necessary for an assembly of a small number of carbon nanotubes. | Libao An Craig Friedrich | 2013 | Progress in Natural Science:Materials International2013，23，4： | 9 |
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