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频率资源,价值无限——看新的融合

广播与电视技术 2004年第10期31卷 44-50页

作者：迟立国 kjell Engstrm 国家广电总局信息影视网络中心网络安全处瑞典广播公司

如何最大程度地发挥频率资源的效用?当我们分别以经济效率和频谱效率为依据去考察问题则会得出完全不同的结论。本文从广播业者的特有视角讨论了广播频率的合理使用和业务融合等方面的问题。

关键词：频率资源经济效率效用价值最大问题业务融合广播频率广播业结论

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裤式拖网法校核试验和网形分析

青岛海洋大学学报（自然科学版） 2003年第5期33卷 695-700页

作者：唐衍力梁振林 Arill Engas kjell Gamst 中国海洋大学水产学院青岛266003 挪威海洋研究所

裤式拖网法是渔具选择性研究方法之一 ,其网形和校核试验于 2 0 0 2年 1月在挪威特鲁姆瑟海湾进行。在 1 1 5～ 2 70 m的水深范围内 ,测量的裤式拖网网口的水平扩张平均为 (2 3.2 7± 0 .2 6) m,网口高度为 (6.53± 0 .1 2 ) m;右网囊... 详细信息

裤式拖网法是渔具选择性研究方法之一 ,其网形和校核试验于 2 0 0 2年 1月在挪威特鲁姆瑟海湾进行。在 1 1 5～ 2 70 m的水深范围内 ,测量的裤式拖网网口的水平扩张平均为 (2 3.2 7± 0 .2 6) m,网口高度为 (6.53± 0 .1 2 ) m;右网囊对左网囊的虾渔获物重量之比为 1 .0 0± 0 .0 4 ,右网囊对左网囊的渔获物尾数之比为 1 .0 8± 0 .0 9,渔获物种类及体长频率分布相似。

关键词：渔具选择性裤式拖网校核试验网形

The anorectic response to growth hormone in obese rats is associated with increased ketogenesis: A short communication

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Open Journal of Molecular and Integrative Physiology 2013年第2期3卷 80-82页

作者： Bo Xu Manjunath Manubolu Paresh Dutta kjell Malmlof Department of Anatomy Physiologyand BiochemistrySwedish University of Agricultural SciencesUppsalaSweden Department of Neuroscience Uppsala UniversityUppsalaSweden Department of Food Science Swedish University of Agricultural SciencesUppsalaSweden

The purpose of this study was to investigate whether obese rats with a strong anorectic response to growth hormone also showed signs of increased hepatic ketogenesis as reflected in circulating β-hydroxybutyrate levels. Rats with diet-induced obesity were allocated to one of two groups, receiving either vehicle (n = 7) or 4 mg/kg/d of growth hormone (n = 13) for 4 days. This latter group was later split into a group of responders (n = 8) showing a cumulated reduction of food intake of more than 4 g from base line during the last two days of administrations and a group of non-responders (n = 5). The cumulated reduction of food intake from baseline among the responders was 10.8 ±1.5 g. The corresponding marginal reductions in the non-responder and vehicle groups were 0.5 ±3.4 gand 0.5 ±3.7 g, respectively. Growth hormone administration generally increased serum levels of β-hydroxybutyrate and free fatty acids, compared with vehicle, whereas triglycerides were decreased. Among the responders this effect was statistically significant in all instances whereas the same trend was weaker among non-responders. The main finding of the present study was that the serum β-hydroxybutyrate levels of 0.76 ± 0.11 mmol/l among responders was three times higher than non-responders

关键词： Growth Hormone Lipolysis Ketogenesis Food Intake

Urban Forestry Research in Europe-An Overview

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Chinese Forestry Science and Technology 2003年第1期2卷 5-15页

作者： Cecil C.Konijnendijk Thomas B.Randrup kjell Nilsson Corresponding author:Thomas B. Randrup DFLRI Hoersholm Kongevej 28 DK-2970 Hoersholm Denmark.Fax:+45 45 76 32 33Corresponding author:Thomas B. RandrupDFLRI Hoersholm Kongevej 28 DK-2970 Hoersholm Denmark.Fax:+45 45 76 32 33Danish Forest and Landscape Research Institute Hoersholm Kongevej 11 DK-2970 Hoersholm Denmark

A comprehensive European overview of recent and ongoing research in Europe has been carried out within the framework of COST Action E12 'Urban Forests and Trees', a pan-European research network. This paper presents some of the main findings of a comparative analysis of 20 individual country reports. The analysis shows that research on urban forests and urban trees in Europe has a wide scope and is rather fragmented and uncoordinated. Universities and state research institutes, mostly with a forestry or...

关键词： urban forestry urban forest urban trees research overview Europe

Resistance Training in People at Risk of Developing Type 2 Diabetes and Their Experience of Health-Related Quality of Life

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Health 2016年第13期8卷 1323-1334页

作者： Elisabeth Hansen Stig Vinberg kjell Terje Gundersen Bodil J. Landstad Department of Health Sciences Mid Sweden University Ostersund Sweden Faculty of Education Nord University Levanger Norway Levanger Hospital Nord-Trondelag Hospital Trust Levanger Norway

Background: Research indicates an association between impaired glucose metabolism and overweight, a serious public health problem involving an increased risk of Type 2 diabetes, related hypertension, and a reduced quality of life. Aim: The first aim is to assess different dimensions of Health-Related Quality of Life (HRQoL) in overweight individuals at risk of developing Type 2 diabetes compared to a normal population. The second aim is to examine the impact of resistance training on the pre-post HRQoL dimension scores of the intervention group. Methods: Eighteen participants were randomly assigned to one of the two resistance training groups. Group 1 engaged in supervised maximal resistance training (Bernstein inverted pyramid system: 5× 3 - 4, 60% - 85% of 1 Repetition Maximum (RM)), three days/week over four months, and Group 2 performed endurance resistance training (including lower weight loads and more repetitions over four months). The intervention consisted of eight exercises involving the entire body. The subjects completed the Short-Form Health Survey (SF-36) on HRQoL. The HRQoL scores of the norm population were higher than those of people at risk of developing Type 2 diabetes, and resistance training seemed to have a limited significant positive effect on the different HRQoL dimensions.

关键词： Resistance Training IGT Impaired Glucose Tolerance HRQoL Health-Related Quality of Life Intervention Study

Effects of Pumping Height and Repeated Pumping in Atlantic Salmon Salmo salar

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Natural Resources 2016年第6期7卷 377-383页

作者： Åsa Maria Espmark kjell Ø. Midling Jonatan Nilsson Odd-Børre Humborstad Nofima AS Sunndals&oslash ra Norway Nofima AS Troms&oslash Norway Institute of Marine Research Bergen Norway

The aim of this study was to evaluate the effects of pumping height and repeated pumping on the generalized stress response and gross injuries in harvest sized Atlantic salmon. Fish pumped from a net pen at either high (5.2 m) or low (3.6 m) pumping heights showed an elevated, but not severe physiological stress response (pH, pCO2, lactate, potassium, haematocrit, and sodium) compared to fish netted (not pumped), while effects of different pumping heights were overall not demonstrated. Repeated pumping (either 3 or 6 times) also caused an increase in stress response (pH, pCO2, pO2, lactate, potassium and sodium) compared to control fish, and a positive dose-response relationship was found for lactate. No fish died as a result of pumping, nor were injuries observed that could exclusively be attributed to pumping. In conclusion, although elevated from the control groups, the stress response following increasing pumping height and repeated pumping as conducted in these experiments were not indicative of causing severe stress or injuries.

关键词： Handling Pumping Height Repeated Pumping Atlantic Salmon Stress Welfare

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陕西大荔县改水对氟牙症患病情况的影响

中华口腔医学杂志 2004年第2期39卷 139-141页

作者：阮建平刘忠岐宋健玲 kjell Bjorvatn 阮梅生西安交通大学口腔医学院预防医学教研室 710004 Department of Dental Research

目的　观察陕西省大荔县龙门和皇都两村改水前后氟牙症的发病及流行情况 ,探讨改水对氟牙症发生的影响。方法　将 2 91名中小学生分为 2个组 ,①改水后组 :年龄 10～ 11岁 ,在改水1～ 2年以后出生 ,一直饮用含氟量为 1 2mg/L的新水源。... 详细信息

目的　观察陕西省大荔县龙门和皇都两村改水前后氟牙症的发病及流行情况 ,探讨改水对氟牙症发生的影响。方法　将 2 91名中小学生分为 2个组 ,①改水后组 :年龄 10～ 11岁 ,在改水1～ 2年以后出生 ,一直饮用含氟量为 1 2mg/L的新水源。②改水前组 ,年龄 15～ 16岁 ,在改水前4～ 5年出生 ,即在牙冠的形成发育期饮用 2 0～ 10 0mg/L的高氟水。根据Dean′s分类法记录受检者的牙齿情况。用t检验和 χ2 检验进行统计学分析。结果　①改水前后两组的患病率分别为87 2 %和 4 8 8% ,改用新水源后 ,氟牙症的患病率下降了 38 4 % ,其中改水前组中到重度氟牙症患病率分别为 32 0 %和 8 8% ;改水后组为 13 9%和 0。流行指数由 2 11降为 1 0 1,差异有高度显著性(P =0 0 0 )。②改水前两村间的患病率分别为 90 7%和 82 0 % ,差异无显著性 ;改水后的患病率分别为 5 7 1%和 38 7%。龙门村高于皇都村 ,差异有显著性 (P =0 0 18)。③在各组之间 ,女性的患病率均高于男性 ,但差异无统计学意义。结论　①改用含氟量为 1 2mg/L的水源后 ,明显降低了氟牙症的发生 ;② 1 2mg/L的水氟含量对大荔县人群来说仍然偏高 ,需要进一步采取措施 ,降低该地区饮水中氟的含量。

关键词：陕西大荔县氟牙症氟中毒流行病

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去瑞典,做大自然的访客

风景名胜 2011年第7期 79-89+78+16页

作者： kjell 北京外国语大学

"如果你往地下挖个洞,一直挖一直挖,通到地球的另一端,那里就是中国。"很多瑞典小朋友,都从父母那里听到过这个故事,在他们看来,中国是一个远在世界"另一端"的国度。搬出地球仪来验证一下,你会发现这种说法多少有点夸张的成分,可是对于... 详细信息

"如果你往地下挖个洞,一直挖一直挖,通到地球的另一端,那里就是中国。"很多瑞典小朋友,都从父母那里听到过这个故事,在他们看来,中国是一个远在世界"另一端"的国度。搬出地球仪来验证一下,你会发现这种说法多少有点夸张的成分,可是对于很多中国人来说,瑞典,又何尝不是一个"远在天边"的神秘国度呢?地图上的距离很有欺骗性,看上去很远的斯德哥尔摩,却是距离中国飞行时间最短的欧洲国家首都之一。从北京起飞,八个小时就可

CASTTGRINDING~:灵活的环保型板坯表面精整工艺

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钢铁 2002年第12期37卷 27-32页

作者： Paolo Righini kjell Str m berg B rje Brlander 达涅利森特罗马斯克茵

CASTTGRINDINGR○ (铸造温度修磨 )工艺 ,通过对连铸板坯进行在线热精整 ,使其能够将板坯连铸生产与热轧工艺有机地形成一个整体。介绍了 CASTTGRINDINGR○热修磨工艺的主要特点和带来的好处 ,并举例说明与目前在碳钢精整时通常采用的... 详细信息

CASTTGRINDINGR○ (铸造温度修磨 )工艺 ,通过对连铸板坯进行在线热精整 ,使其能够将板坯连铸生产与热轧工艺有机地形成一个整体。介绍了 CASTTGRINDINGR○热修磨工艺的主要特点和带来的好处 ,并举例说明与目前在碳钢精整时通常采用的传统式火焰清理设备相比。

关键词：生产率环境污染板坯