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episodes 2007年第4期30卷 258-270页

作者： Daniel Goldman Stephen A. Leslie Jaak Nōlvak Seth Young stig M. Bergstroem Warren D. Huff Department of Geology University of Dayton 300 College Park Dayton Ohio 45469 USA Deparment of Geology and environmental Science James Madison University MSC 6903 Harrisonburg VA 22807 USA Institute of Geology at Tallinn University of Technology Ehitajate tee 5 19086 Tallinn Estonia School of earth Sciences Division of Geological Sciences The Ohio State University 155 S. Oval Mall Columbus Ohio 43210 USA Department of Geology University of Cincinnati Cincinnati Ohio 45221 USA.

The Global Boundary Stratotype Section and Point （GSSP） for the Katian Stage of the Upper Ordovician Series is defined as the 4.0 m-level above the base of the Bigfork Chert in the Black Knob Ridge section, southeastern Oklahoma. This point in this section is coincident with the first appearance of the graptolite Diplacanthograptus caudatus, which has proved to be a reliable datum for precise worldwide correlation. The FAD ofD. caudatus occurs very near the first occurrences of the graptolites D. lanceolatus, *** americanus, Orthograptus pageanus, O. quadrimucronatus, Dicranograptus hians, and Neurograptus margaritatus. This rapid succession of fossil species appearance events provides a secure basis for identification of the base of the Katian Stage of the Upper Ordovician Series and for its global chronostratigraphic correlation.

关键词：层形断面奥陶纪俄克拉荷马州美国地质特点

The Value of Measuring Vod in Large Scale Sublevel Caving

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The Value of Measuring Vod in Large Scale Sublevel Caving

Process Adaption of a Small WWTP Operated at Low Loading Conditions for Substantial energy Savings

The Seventh International Symposium on Rock Fragmentation by Blasting

作者： FJeLLBORG stig LKAB Kiruna Sweden

＜正＞ The techniques of assessing blast results in sublevel caving are limited as only a minor part of the blasted rock is visible. Vibration monitoring has been used as the basic method for determining blast sequence control in the LKAB iron ore underground mines, but the results have been difficult to interpret. This insecurity is caused by the standard firing plan, where the holes are blasted two by two at the same interval and a delay of 25 ms between each pair of holes. Vibration monitoring has indicated that the malfunction in production blasting is up to 15 % of explosives. A loss of explosives to that degree is not only a considerable economic waist but also is environmentally unacceptable. Deeper investigations of the blasting function was therefore of vital interest to the company and in order to monitor the blasts in their original state, it was decided to trial VOD monitoring in the blasting rings. Monitoring of VOD was conducted in 43 blasting rings during November 1999 to December 2001 in the Kiruna mine and the malfunction was estimated to be less than 10 %. A number of new characteristics and interesting VOD curves were identified during these trials and a series of test blasts with smaller charges were conducted in order to facilitate the interpretation of these VOD curves. The VOD monitoring also supported emulsion to be a reliable explosive, as it takes a massive disturbance to the explosive column to cease detonation. even large drops in VOD have recovered to acceptable levels.

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Journal of Water Resource and Protection 2020年第6期12卷 472-479页

作者： stig Morling Sweco Roland Johansson Pireva Sweco environment AB Stockholm Sweden

The very long tradition of the activated sludge treatment model within the water industry has demonstrated very versatile possibilities to adopt the operation mode for different enhancements. By looking into other treatment models within the activated sludge family it is possible to find alternatives for the operation. This paper concentrates on the possibilities to improve even small WWTP with respect to energy savings. The small plant in Northern Sweden, called Rosvik WWTP, is given as an example. Some important findings related to the intermittent aeration mode may be summarized as follows: 1) An energy savings for the operation of the small WWTP with respect to aeration needs that resulted in a decrease of the energy power supply by more than 35%, as compared with the previous operation based on continuous aeration;2) The up to date effluent levels with respect to the main pollutants have remained at very good levels in 2020, P-level averages 0.16 mg P/l versus consent level 0.5 mg P/l;COD-level 40 versus 70 mg/l and BOD7 9 versus 15 mg/l;3) Sometimes, also improved sludge settling characteristics have been observed, thus providing improved discharge figures;4) The potential to develop an enhanced biological phosphorus removal. There are however some needed conditions to accomplish these improvements: 1) Reliablee="font-family:Verdana;"> on-line probes for both oxygen control, SS-concentration control and optionally also for nitrogen control;2) A flexible automation system that allows the needed process modifications to take place;3) And finally, very important dedicated and competent plant operators, with the needed curiosi

关键词： Activated Sludge Low Load energy Savings Phosphorus Removal Inter-mittent Operation

On the Parametric and Geometric Dependence of the Second-Order Sum-Frequency Forces on Deep-Water Offshore Structures

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On the Parametric and Geometric Dependence of the Second-Ord...

The Sixth World Congress on Computational Mechanics in Conjunction with the Second Asian-Pacific Congress on Computational Mechanics

作者： stig Maeland TNCNO733 Offshore Structures DetNorske Veritas AS Veritasveien 1 1322 Hovik Oslo Norway

The nonlinear sum-frequency wave excitation is identified as a primary source to cause high-frequency resonance of a Tension Leg Platform (TLP) in vertical planes (heave, pitch and roll), so called "springing" vibration. Due to slightly damped system of a TLP, 'springing' persists very long period of time and causing con siderable fatigue stress in the risers and tendons. It has been demonstrated that the second or higher-order wave forces due to sum-frequency effects in the wave spectrum are the main contributor to the oscillation. In addition to the coupling effect of structure and mooring system, the hydrodynamic response of a compliant floating offshore structure in the ocean is primarily governed by wave exciting force and damping. Previous study showed that the viscous damping is a crucial effect on the nonlinear reso nance of a TLP. This study focuses on the parametric and geometric dependence of the springing forces of a TLP using numerical simulation. Several issues closely related to the numerical computation of the second-order sum-frequency forces such as mesh parameters including panel numbers on structural surface and free surface, and the partition circle of the free surface discretization are examined based on convergence tests. The interaction between the structural members on the springing force estimation is investigated. The effects of the major geometrical dimensions of a TLP on the springing forces are examined. Other effects including the incident wave direction and different wave spectrum on the springing forces are also investigated. The recommendations based on the results obtained in this study are of great interest in the TLP design.

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中国三大块体晚奥陶世凯迪早期区域构造事件

科学通报 2014年第34期59卷 59-65页

作者：陈旭 BeRGSTROM stig M. 张元动王志浩中国科学院南京地质古生物研究所南京210008 中国科学院资源地层学与古地理学重点实验室南京210008 School of earth Sciences Division of Geological SciencesThe Ohio State UniversityColumbusOhio 43210USA

基于地层学和古生物学的研究,论及奥陶纪中国华南、华北和塔里木3个块体中发生的构造事件.华北和塔里木地台区内及其边缘带在晚奥陶世凯迪期有一次区域性的抬升事件,表现为这些地区的奥陶系与其上覆的晚古生代地层间的假整合接触.陕西... 详细信息

基于地层学和古生物学的研究,论及奥陶纪中国华南、华北和塔里木3个块体中发生的构造事件.华北和塔里木地台区内及其边缘带在晚奥陶世凯迪期有一次区域性的抬升事件,表现为这些地区的奥陶系与其上覆的晚古生代地层间的假整合接触.陕西陇县和耀县的笔石和牙形刺新资料表明,那里的奥陶系最高层位为笔石Diplacanthograptus spiniferus带(凯迪阶下部).而塔里木地台区的奥陶系最高层位也与之相当,但其边缘带略高一些,相当于笔石Dicellograptus complanatus带.华北和塔里木区域性构造抬升事件都发生在凯迪早期,只是塔里木的抬升持续时间较短.这一构造抬升与中国东南部广西运动的起始时间一致.广西运动提出后在我国曾长期被加里东运动一名所取代,但二者在地理分布、构造性质和活动时限上均不同,建议使用"广西运动"名称,而不宜在华南、华北和塔里木再使用"加里东运动"一名.

关键词：华北塔里木奥陶纪区域构造事件广西运动

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The Organizer Dilemma: Outcomes from a Collaboration exercise

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International Journal of Disaster Risk Science 2019年第2期10卷 261-269页

作者： Jarle Lowe Sorensen eric D.Carlstrom Glenn-egil Torgersen Atle M.Christiansen Tae-eun Kim stig Wahlstrom Leif Inge Magnussen Department of Business History and Social SciencesSchoolof BusinessUniversity of South-Eastern NorwayCampusVestfold3199BorreNorway Institute of Health and Care Sciences University ofGothenburgSE-40530GoteborgSweden Department of Military Leadership and Management TheNorwegian Defence University CollegeN-0151OsloNorway Department of Maritime Operations Faculty of TechnologyNatural Sciences and Maritime SciencesUniversity ofSouth-Eastern NorwayCampus Vestfold3199BorreNorway Norwegian Coastal Administration N-6025 AlesundNorway

In crisis management, cross-sector collaboration exercises are perceived as improving preparedness and develop team-integration efforts. However, studies show that exercises may tend to produce results with limited learning and usefulness. The purpose of this nonexperimental, survey-based study was to measure the difference in perceived exercise effect between participants belonging to the exercise planning organizations and participants belonging to other participating groups. Surveys were distributed and collected from participants in a 2017 chemical oil-spill exercise set off the southern coast of Norway. The target population was operational staff,excluding exercise management and directing staff. The sample population consisted of operatives associated with the exercise organizer organization and others belonging to external public and nongovernmental emergency organizations. The data collection instrument was the 'Collaboration, Learning, and Utility Scale’’(CLU-scale). Findings indicated that the levels of CLU were higher among external participants than among those individuals who belong to the exercise planning organizations. This study recommends the development and adoption of a national maritime collaboration exercise framework. A practical implication is a recommendation to evaluate exercises to secure the outcome regarding collaboration skill using the same instrument.

关键词： Collaboration exercise Collaboration,Learning,and Utility Scale Crisis management Maritime emergencies and crises Norway

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应用合生元治疗人类急性和慢性疾病

国外医学（卫生学分册） 2009年第1期36卷 1-6页

作者： stig BeNGMARK 刘青 Institute of Hepatology University CollegeLondon Medical School

合生元是指益生菌加益生元的合剂,以治疗疾病为目的的合生元称为合生元制剂。合生元的构成基于"多样性防御理论",即认为生物多样性是保护生态环境安全的重要屏障,对于防御生物入侵有着重要意义。益生菌与益生元的相加不是简单的混合,其... 详细信息

合生元是指益生菌加益生元的合剂,以治疗疾病为目的的合生元称为合生元制剂。合生元的构成基于"多样性防御理论",即认为生物多样性是保护生态环境安全的重要屏障,对于防御生物入侵有着重要意义。益生菌与益生元的相加不是简单的混合,其对于微生物生态系统和免疫应答的效果以及强化屏障功能的效果,应该远远超过益生菌和益生元的协同或相加作用。本文将介绍经实验证实的优秀益生菌和具有强力的生物活性的益生元组成的合生元,以及其控制急性和慢性疾病进展的作用。

关键词：合生元慢性疾病

Precipitation behaviour of Al_3Zr precipitate in Al-Cu-Zr and Al-Cu-Zr-Ti-V alloys

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Transactions of Nonferrous Metals Society of China 2012年第8期22卷 1860-1865页

作者：贾志宏 Jean-Philippe COUZINIé Nadia CHeRDOUDI Ivan GUILLOT LarsRNBeRG Petter SHOLT stig BRUSeTHAUG Bruno BARLAS5 Denis MASSINON 重庆大学材料科学与工程学院重庆400044 Department of Materials Science and engineering Norwegian University of Science and TechnologyNO-7491TrondheimNorway Institut de Chimie et des Matériaux Paris-est UMR 7182 CNRS-UnversitéParis Val de Marne2-8 rue Henri Dunant94320 ThiaisFrance Hydro Aluminium Research and Technology Development N-6601 Sunndals raNorway Montupet SA60181 Nogent sur Oise CedexFrance Mentupet SA 60181 Nogent sur Oise CedexFrance

The precipitation behaviours of Al3Zr precipitate in the Al-Cu-Zr and Al-Cu-Zr-Ti-V alloys were studied by transmission electron microscopy. Metastable Al3Zr precipitates are homogeneously nucleated in dendrite centres resulting in homogeneous distribution. However, the precipitation in the interdendritic regions is complex and the precipitation morphologies, helical-like and stripe-like shapes, were observed, which are composed of many spherical Al3Zr precipitates. The stripe-like precipitate clusters have preferential orientations along with the -100- Al directions, which is inferred to be related to θ′（Al2Cu） and θ phases. Addition of Cu can accelerate the L12→D023 structural transformation of the Al3Zr precipitate.

关键词： aluminium alloys Al3Zr precipitate phase transformation

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奥陶系研究百余年：从英国标准到国际标准

地层学杂志 2008年第1期32卷 1-14页

作者：陈旭 stig M．Bergstrom 现代古生物学和地层学国家重点实验室中国科学院南京地质古生物研究所江苏南京210008 俄亥俄州立大学地球科学系美国哥伦布斯OH43210

英国学者Sedgwick、Murchison和Lapworth等早在19世纪便对奥陶系作出了先驱性的研究,包括创建了奥陶系。但百年来各国主要都集中于地区性的奥陶系研究,并建立了地区性的序列和标准,这在事实上一直都把英国的奥陶系划分作为国际间的对比... 详细信息

英国学者Sedgwick、Murchison和Lapworth等早在19世纪便对奥陶系作出了先驱性的研究,包括创建了奥陶系。但百年来各国主要都集中于地区性的奥陶系研究,并建立了地区性的序列和标准,这在事实上一直都把英国的奥陶系划分作为国际间的对比标准。近三十年来,随着国际奥陶系分会不断推进各国奥陶系的研究工作,并在2007年完成了奥陶系三统七阶的全部全球层型剖面和点位(GSSP)的研究,建立了全球标准。为了便于运用,建议将奥陶系的三统七阶分为20个间隔段,以利于洲际对比,并把地区性的统与阶准确地对比到国际标准上去。同时附上与年代地层划分相一致的奥陶系全球碳同位素的变化曲线。

关键词：年代地层学阶统系奥陶系

exploring Greenhouse Gases Water and Climate Changes:Scientific Opportunities for the Climate and Atmospheric Composition exploring Satellites Mission

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空间科学学报 2020年第2期40卷 151-168页

作者： LIU Congliang KIRCHeNGAST Gottfried SUN Yueqiang WANG Xin LU Daren BAI Weihua DU Qifei LOSCHeR Armin SYNDeRGAARD stig TIAN Longfei ZHANG Zhihua Beijing Key Laboratory of Space environment exploration National Space Science CenterChinese Academy of SciencesBeijing 100190 Wegener Center for Climate and Global Change and Institute for Geophysics Astrophysicsand Meteorology/Institute of PhysicsUniversity of GrazGraz A-8010 Joint Laboratory on Occultations for Atmosphere and Climate Beijing 100190 Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029 Future Missions and Instrument Division European Space AgencyNoordwijkNL-2200 Danish Meteorological Institute CopenhagenDK-2100 Innovation Academy for Microsatellite of Chinese Academy of Sciences Shanghai 201210 University of Chinese Academy of Sciences Beijing 100049

The essential Climate Variables(eCVs),such as the atmospheric thermodynamic state variables and greenhouse gases,play an important role in the atmosphere physical processes and global climate *** the need of improvements in existing ground-based and satellite observations to successfully deliver atmosphere and climate benchmark data and reduce data ambiguity,the Climate and Atmospheric Composition exploring Satellites mission(CACeS)was proposed and selected as a candidate mission of the Strategic Priority Research Program of Chinese Academy Science(SPRPCAS).This paper presents an overview of the key scientific questions and responses of eC Vs in relation to global change;the principles,algorithms,and payloads of microwave occultation using centimeter and millimeter wave signals between low earth orbit satellites(LeO-LeO microwave occultation,LMO)as well as of the LeO-LeO infrared-laser occultation(LIO);the CACeS mission with its scientific objectives,mission concept,spacecraft and instrumentation.

关键词： Climate Greenhouse gases Water Microwave occultation Infrared-laser occultation