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Earthquake Hazard Zonation and Seismotectonics of the Bandar Abbas Area, Zagros, Iran 被引量:8
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作者 Saeedeh Abdolizadeh Zahra Maleki Mehran Arian 《Open Journal of Geology》 2016年第3期210-224,共15页
The study area (Bandar Abbas area) is located in the Zagros fold-thrust belt as part of the Alpine-Himalayan orogenic belt as seismically active belt. This area is located between the Makran accretionary prism and Oma... The study area (Bandar Abbas area) is located in the Zagros fold-thrust belt as part of the Alpine-Himalayan orogenic belt as seismically active belt. This area is located between the Makran accretionary prism and Oman Mountains from east and the Zagros collision belt from west as transition zone. The Zagros fold-thrust belt from the viewpoint of seismicity, is very active and Iran’s major earthquake-prone area. The study area has main active faults and some high magnitude earthquakes occurred in current century. Because the Bandar Abbas area has high seismic activity, the main goal of this research is prepared to earthquake hazard zonation and identify hazardous seismic zones, based on Decision Support System method for define active seismotectonic in this area. The seismotectonic study has been done in 30 - 100 km radius, for Bandar Abbas area. In this research, we used Decision Support System method by in corporate and combine essential data such as seismic data from 1900-2015, Digital Elevation Model of the study area (DEM), surface geology, seismicity parameters, soil classification and location main faults. In this research the Decision Support System (DSS) base on GIS database is used for calculate seismicity parameters. Based on the relative risk of earthquake zonation map, the Bandar Abbas area is located from the north to the East and from the South to the East, in area with high seismic risk (with Orange color). Some small regions with very high relative seismic risk have been limited to these areas with high risk. Also from north to west and from south to west “the study area” is located mainly in the area with earthquake relative risk of in areas with moderate and low relative risk of earthquakes. In the far southwestern region of the study, the small area is located in an area with high and very high seismic relative risk and this case may be due to the activity of the Mountain Front Fault (MFF) and Zagros Fore deep Fault (ZFF). Finally, the study area has been affected by active faults and it causes high vulnerability of the study area in the face of a possible occurrence of earthquakes. Based on of Seismotectonic investigations, there are existed minor faults of the Zagros fault from East to West and in the middle part. This case has been caused some parts in the study area with low and moderate seismic risk to be considered in the face of possible earthquakes and seismic damages, as an area with high seismic risk. 展开更多
关键词 ZAGROS Bandar abbas Earthquake Hazard ZONATION Active Faults
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Facies Analysis and Depositional Environment of the Oligocene-Miocene Asmari Formation, Bandar Abbas Hinterland, Iran 被引量:1
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作者 Mahdi Hoseinzadeh Jahanbakhsh Daneshian +1 位作者 Seyed Ali Moallemi Ali Solgi 《Open Journal of Geology》 2015年第4期175-187,共13页
The Asmari Formation is a thick carbonate sequence of the Oligocene-Miocene in the Zagros Basin, southwest of Iran. This formation is located in Bandar Abbas and Coastal Fars regions on the following two sections: Ang... The Asmari Formation is a thick carbonate sequence of the Oligocene-Miocene in the Zagros Basin, southwest of Iran. This formation is located in Bandar Abbas and Coastal Fars regions on the following two sections: Anguro anticline (west-northwest of Bandar Abbas) and Gavbast anticline (southwest of Lar County). The Asmari Formation has diameters of 68 and 26 m in the Anguro and Gavbast sections, respectively. This formation is composed of limestone, dolomitic limestone and an altered form of marl. Based on the results of petrographic analyses, 7 facies were identified in the Anguro and Gavbast sections in the study region. The facies were deposited on the following 3 belts: tidal flat (MF 1 - 3), lagoon (MF 4 - 5) and open marine (MF 6, 7). According to evidence such as the gradual change of microfacies, the lack of main reef barriers, and the lack of slumping and sliding features, the Asmari Formation was formed in a marine environment of carbonate homoclinal ramp type. This environment is composed of the following two subenvironments: the inner ramp and the middle ramp. The comparison of the facies identified in the Anguro and Gavbast sections indicates that Gavbast section is mainly composed of lagoon facies. Moreover, the Anguro section demonstrates more facies diversity than Gavbast section. 展开更多
关键词 Asmari Formation DEPOSITIONAL Environment MICROFACIES Ramp Bandar abbas HINTERLAND Iran
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Determine the Level of Organizational Learning Capability in Teaching Hospitals in Bandar Abbas City—Iran
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作者 Fereshteh Farzianpour Afife Irani Abbas Rahimi Foroushani 《Health》 CAS 2016年第1期24-31,共8页
Background: The hospital is a scientific organization that despite much progress, today, is also dependent on manpower. One of the main requirements for the proper functioning of manpower is that through learning, the... Background: The hospital is a scientific organization that despite much progress, today, is also dependent on manpower. One of the main requirements for the proper functioning of manpower is that through learning, they be updated in terms of knowledge. Thus, the aim of this study was to determine the level of Organizational Learning Capability in hospitals in Bandar Abbas City—Iran. Methods: In 2014, this descriptive-analytic study was conducted in hospitals in Bandar Abbas City. The data was collected through the Gomez questionnaire for organizational learning from 290 employees of hospitals. Data analysis was done using software SPSS V.20 and by the Mann-Whitney U test and the Kruskal-Wallis test. Results: Organizational Learning Capability in governmental, private and social security hospitals were 0.31 ± 53.06, 9.38 ± 47.38 and 0.27 ± 50.74, respectively. The results of the Kruskal-Wallis test showed that the relationship between the variables of employment status (p = 0.034), occupational categories (p = 0.043), and type of ownership (p = 0.02), was significant with the organizational learning capability but such a significant relationship was not observed in terms of age, educational level and employment status. The results of the Mann- Whitney U-test indicated a significant association between marital status (p = 0.029) and type of hospital (p = 0.049) with the organizational learning capability. Conclusion: Need to up-to-dating of staff’s knowledge has made undeniable the role of organizational learning. According to the results, managers have to provide conditions for improving the status quo through promoting or-ganizational learning and extend the ability of the organization for growth and progress. 展开更多
关键词 Organizational Learning Capability HOSPITAL Bandar abbas
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Examination of the Level of Heavy Metals in Wastewater of Bandar Abbas Wastewater Treatment Plant
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作者 Gholamreza Mansourri Mehrzad Madani 《Open Journal of Ecology》 2016年第2期55-61,共7页
One of the main environmental pollutants is heavy metals. Due to extensive usage in industry, these metals enter biological cycle rapidly and contaminated water and soil resources rapidly. In this work, lead, copper, ... One of the main environmental pollutants is heavy metals. Due to extensive usage in industry, these metals enter biological cycle rapidly and contaminated water and soil resources rapidly. In this work, lead, copper, zinc and chromium of Bandar Abbas wastewater are examined. For this research, nine stations were set for measurement in urban level in Bandar Abbas and sampling of aforesaid metals was performed in fall and winter 2006 in these stations. After extraction and preparation operations using APDC-MIBK, samples were measured using flame atomic absorption system. According to results, concentrate of studied metals was lower than allowable standard value set by Iran environmental protection organization for agricultural purposes and sewage to ground level waters. In addition, efficiency of Bandar Abbas wastewater treatment plant to remove these metals is 40% - 70% from which highest removal is for zinc as much as 71.1% and lowest level is for copper as much as 40.5%. However, copper level was higher than allowable level for agricultural purposes in spring and summer (0.21 mg/L and 0.23 mg/L, respectively) and lower in fall and winter (0.103 mg/L and 0.098 mg/L, respectively). Furthermore, changes in concentration of metals in these stations in various seasons were measured and analyzed using one-way variance analysis and simultaneous effects of time and place on measured variables were analyzed using two-way variance analysis. 展开更多
关键词 Urban Wastewater Bandar abbas Heavy Metals Treatment Plant
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The Effect of Regional Socio-Economic Factor on Development of Heterogeneous Urban Contexts;Case Study: Bandar Abbas City
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作者 Mohammad Reza Daroudi Sania Sami 《Journal of Building Construction and Planning Research》 2016年第3期190-200,共11页
Heterogeneous urban development of Iran during current decades along with ineffectiveness of urban planning system and shortcoming of national development programs and land use planning have led to many problems of ur... Heterogeneous urban development of Iran during current decades along with ineffectiveness of urban planning system and shortcoming of national development programs and land use planning have led to many problems of urbanism in Iran so that heterogeneous and old contexts can be named as one of the problems in this field. Urban decay is one of the serious and inevitable problems of urban management in all countries. This study has been conducted to analyze and assess the effect of regional factors on development of problematic urban contexts emphasizing on socio- economic indicators in Bandar Abbas City. Having urban macro-indicators at regional and country level, Bandar Abbas City faces various physical problems which problematic and old contexts are the most important of them that cover an area of 1033 hectares. Economic issues and heterogeneity within social contexts have expanded the mentioned problem in addition to physical problems. Methodology of this study has been analytical-descriptive, data collection method of documentary information has been gathered from relevant administrative organization such as Statistical Center of Iran, the Municipality and the Ministry of Housing and Urban Development, and survey data has been collected through 90 questionnaires. According to the obtained results of this study, it could be found that social, economic, political and managerial factors have had effects on formation of heterogeneous contexts and extensive migration during the current years has expanded problematic contexts of Bandar Abbas due to its specific regional conditions. Moreover, the obtained results of this study indicated that heterogeneous contexts had some features including fine-grained, inadequate access network, impervious, inferior materials and poor construction of buildings and lack of necessary infrastructure. 展开更多
关键词 Heterogeneous Context Bandar abbas Regional Management Informal Settlement
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技术赋能:虚拟音乐会ABBA模式在上海复刻的可能性探究
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作者 黄艳如 《上海广播电视研究》 2025年第2期69-74,共6页
数字经济呈蓬勃发展之势,音乐演出行业正在经历着深刻的变革与转型。ABBA虚拟音乐会(ABBA Voyage)作为这一变革浪潮中的典型代表,巧妙地运用体积视频、全息投影以及多样化、数字化手段,不仅在商业范畴获得巨大成功,也为音乐演出的未来... 数字经济呈蓬勃发展之势,音乐演出行业正在经历着深刻的变革与转型。ABBA虚拟音乐会(ABBA Voyage)作为这一变革浪潮中的典型代表,巧妙地运用体积视频、全息投影以及多样化、数字化手段,不仅在商业范畴获得巨大成功,也为音乐演出的未来发展形态构筑了极具价值的探索样板。本文深度剖析ABBA Voyage演唱会借助技术融合重塑音乐演出商业模式以及革新观众体验的内在逻辑与具体实践,探究其对上海这座“亚洲演艺之都”在演艺产业发展进程中的启示性意义与可借鉴价值。 展开更多
关键词 ABBA 虚拟音乐会 数字化复出 自传播
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基于一测多评结合熵权逼近理想解排序法对绵马贯众炭的质量评价 被引量:4
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作者 董双涛 徐丽霞 +1 位作者 高建平 李宝霞 《中草药》 CAS CSCD 北大核心 2024年第7期2397-2404,共8页
目的建立多元统计分析和熵权逼近理想解排序法的绵马贯众炭Dryopteridis Crassirhizomatis Rhizoma Carbonisatum质量评价方法。方法收集不同产地的16批次样品,以绵马贯众素ABBA为内参物,采用一测多评(QAMS)法同时检测绵马贯众炭中白绵... 目的建立多元统计分析和熵权逼近理想解排序法的绵马贯众炭Dryopteridis Crassirhizomatis Rhizoma Carbonisatum质量评价方法。方法收集不同产地的16批次样品,以绵马贯众素ABBA为内参物,采用一测多评(QAMS)法同时检测绵马贯众炭中白绵马素AA、二去甲基伪绵马素AA、伪绵马素、白绵马素AP、绵马酸ABA、绵马贯众素ABBA、山柰素、大豆素、去甲氧基荚果蕨素、异槲皮素和圣草次苷含量;采用多元统计分析和熵权逼近理想解排序(entropy weight technique for order preferenceby similarity to ideal solution,EW-TOPSIS)法对绵马贯众炭质量进行评价。结果外标法方法学验证符合《中国药典》2020年版规定,所建立的相对校正因子耐用性良好,QAMS法可用于绵马贯众炭中11个成分含量的同步检测;多元统计分析结果显示16批样品呈现一定的区域差异,去甲氧基荚果蕨素、绵马贯众素ABBA、伪绵马素和山柰素是引起不同批次绵马贯众炭分组的主要变量因子,EW-TOPSIS法结果显示16批绵马贯众炭质量评价贴近度(Jb)为0.1371~0.7067,S12~S16的排序位于前5位,表明吉林产地所得绵马贯众炭整体质量较好。结论所建立的集HPLC-QAMS、多元统计分析及EW-TOPSIS法于一身的综合质量评价方法,省时便捷,为绵马贯众炭的品质评价和质量控制提供参考。 展开更多
关键词 粗茎鳞毛蕨 绵马贯众炭 一测多评法 多元统计分析 主成分分析 正交偏最小二乘判别分析法 熵权TOPSIS法 白绵马素AA 伪绵马素 白绵马素AP 绵马贯众素ABBA
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阴离子交换树脂分离纯化绵马贯众总多酚的工艺研究 被引量:3
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作者 曹广尚 王信 杨培民 《中草药》 CAS CSCD 北大核心 2014年第9期1265-1269,共5页
目的研究阴离子交换树脂分离纯化绵马贯众总多酚的工艺条件。方法分别以绵马贯众素ABBA、绵马贯众总多酚的比吸附量、洗脱率、质量分数为指标,优选绵马贯众总多酚的最佳纯化工艺。结果最佳工艺为绵马贯众药材提取液以6 BV/h的体积流量通... 目的研究阴离子交换树脂分离纯化绵马贯众总多酚的工艺条件。方法分别以绵马贯众素ABBA、绵马贯众总多酚的比吸附量、洗脱率、质量分数为指标,优选绵马贯众总多酚的最佳纯化工艺。结果最佳工艺为绵马贯众药材提取液以6 BV/h的体积流量通过201×7氢氧型阴离子交换树脂柱(柱径与柱高比为1∶7),树脂饱和后,水洗至中性,再用3%氯化钠的60%乙醇溶液以6 BV/h的体积流量洗脱,洗脱9倍量树脂柱体积。绵马贯众素ABBA及绵马贯众总多酚洗脱率分别为90.1%和91.1%,绵马贯众素ABBA、绵马贯众总多酚的质量分数分别为29.4%、49.2%。结论采用201×7氢氧型阴离子交换树脂纯化绵马贯众总多酚效率高,成本低,具有广阔的应用前景。 展开更多
关键词 绵马贯众 总多酚 阴离子交换树脂 纯化 绵马贯众素ABBA
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绵马贯众素对马铃薯干腐病菌的抑菌活性研究 被引量:3
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作者 高云飞 王文重 +4 位作者 宿飞飞 闵凡祥 刘振宇 魏琪 万书明 《中国马铃薯》 2020年第4期238-244,共7页
马铃薯干腐病是镰孢菌引起的贮藏期病害,造成损失10%~35%。利用高效液相色谱法(HPLC)测定粗茎麟毛蕨(Dryopteris crassirhizoma)提取液中绵马贯众素的含量,采用生长速率法测定其对马铃薯干腐病4种主要致病镰孢菌(Fusarium culmorum,F.av... 马铃薯干腐病是镰孢菌引起的贮藏期病害,造成损失10%~35%。利用高效液相色谱法(HPLC)测定粗茎麟毛蕨(Dryopteris crassirhizoma)提取液中绵马贯众素的含量,采用生长速率法测定其对马铃薯干腐病4种主要致病镰孢菌(Fusarium culmorum,F.avenaceum,F.sambucinum和F.solami var.coeruleum)的抑制效果,并研究不同浓度的绵马贯众素对接骨木镰孢菌菌丝和孢子萌发率的影响。绵马贯众素对4种镰孢菌均有一定的抑制作用,在1 mg/mL浓度下对接骨木镰孢菌抑制率高达95.2%,显著高于其他三种镰孢菌。与对照组相比,接骨木镰孢菌菌丝干重随着绵马贯众素浓度升高而下降。绵马贯众素在0.1 mg/mL时在一定程度上延缓接骨木镰孢菌孢子的萌发,萌发率为26.97%,而在0.5 mg/mL时可有效抑制孢子的萌发,萌发率仅为5.48%。因此,绵马贯众素具有研发植物源农药的潜力。 展开更多
关键词 绵马贯众素ABBA 接骨木镰孢菌 抑菌率 孢子萌发 菌丝干重
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一类空时码在协作通信中的应用研究 被引量:1
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作者 赵雄伟 郭金淮 +1 位作者 于宏毅 胡捍英 《电子与信息学报》 EI CSCD 北大核心 2008年第5期1171-1175,共5页
该文将一种类似ABBA码的空时分组码进行了扩展,并用于协作分集网络中。分析了此码的可分解特性,讨论了该码的非正交性对性能带来的影响。通过仿真实验,给出了协作节点数目和系统性能之间的关系以及协作节点数的限制。结果表明,对于文中... 该文将一种类似ABBA码的空时分组码进行了扩展,并用于协作分集网络中。分析了此码的可分解特性,讨论了该码的非正交性对性能带来的影响。通过仿真实验,给出了协作节点数目和系统性能之间的关系以及协作节点数的限制。结果表明,对于文中的协作通信系统而言,其中继节点数目为8业已足够,再增加中继数目对于系统性能的提升很小。 展开更多
关键词 ABBA码 协作通信 空时分组码 分集阶数
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一种高速率满分集增益的STBC码 被引量:1
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作者 薛明 杨莘元 王婷 《应用科技》 CAS 2010年第3期22-25,共4页
针对准正交空时分组码不能实现满分集增益的缺点,在星座旋转的基础上,将角度反馈引入到准正交编码中.改进后的空时分组码,可以在不降低码率的同时实现全分集,并且提出了一种量化方案,通过对干扰项的实部和虚部信息的简单比较选取来简化... 针对准正交空时分组码不能实现满分集增益的缺点,在星座旋转的基础上,将角度反馈引入到准正交编码中.改进后的空时分组码,可以在不降低码率的同时实现全分集,并且提出了一种量化方案,通过对干扰项的实部和虚部信息的简单比较选取来简化设计的复杂度,达到了在发射端仅仅需要少量的角度反馈信息就能有效对抗噪声干扰的目的.仿真证明这种简单的改进可以使系统的性能得到明显的提高. 展开更多
关键词 STBC ABBA码 星座旋转 角度反馈 分集增益
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探讨Abba1的C端序列对COS7细胞产生ruffling的影响
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作者 陈燕萍 崔伯塔 +3 位作者 郑大同 王卓璎 崔晓利 鲁翔 《南京医科大学学报(自然科学版)》 CAS CSCD 北大核心 2011年第8期1110-1114,共5页
目的:Abba1在体外实验中能介导细胞产生ruffling,其N端的IMD区域中13个赖氨酸为重要的功能氨基酸位点,但Abba1单独的IMD却不足以介导细胞产生ruffling,本研究旨在初步探讨Abba1的C端序列影响细胞产生ruffling的分子机制。方法:先构建Ab... 目的:Abba1在体外实验中能介导细胞产生ruffling,其N端的IMD区域中13个赖氨酸为重要的功能氨基酸位点,但Abba1单独的IMD却不足以介导细胞产生ruffling,本研究旨在初步探讨Abba1的C端序列影响细胞产生ruffling的分子机制。方法:先构建Abba1基因重组表达质粒,分别瞬时转染COS7细胞,通过免疫荧光观察细胞形态改变,并用Western blot检测相应GTP-Rac1的蛋白水平变化。结果:过表达全长Abba1的COS7细胞形成ruffling,与对照组相比,细胞中GTP-Rac1蛋白水平升高(P<0.05);过表达Abba1-IMD和Abba1-del-357-722aa-WH2的COS7细胞不形成ruffling,与对照组相比,相应细胞中GTP-Rac1蛋白水平降低(P<0.05)。结论:Abba1的357-722aa这段区域参与介导细胞产生ruffling,而且这种影响与GTP-Rac1蛋白水平的降低有关。 展开更多
关键词 Abba1 IMD ruffling RAC1
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0.005级活塞压力计标准的不确定度评定 被引量:2
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作者 李迪 《仪表技术》 2016年第10期19-22,共4页
为表征某实际使用的0.005级(0.1~6)MPa的活塞式压力计标准量值的分散性,根据活塞式压力计的测量模型,对该标准在6 MPa压力点处的不确定度进行了分析与评定。其中专用砝码的标准不确定度是活塞式压力计标准不确定度的重要分量之一,以E2... 为表征某实际使用的0.005级(0.1~6)MPa的活塞式压力计标准量值的分散性,根据活塞式压力计的测量模型,对该标准在6 MPa压力点处的不确定度进行了分析与评定。其中专用砝码的标准不确定度是活塞式压力计标准不确定度的重要分量之一,以E2级砝码为标准,通过ABBA循环测量方法测量了专用砝码的重复性并评定了专用砝码标准不确定度的A类分量,同时与其他B类分量合成得到了专用砝码的标准不确定度为8.3×10^(-6)kg,该结果比通常的单纯B类评定结果小得多,故通常认为的均匀分布的假设与砝码质量的实际分布并不严格相符。因此,该方法评定得到的活塞式压力计标准的不确定度比通常算法的评定结果具有更高的可信度。 展开更多
关键词 活塞式压力计标准 不确定度评定 专用砝码 E2级砝码 ABBA循环
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一种新的准正交空时分组码的设计
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作者 贾明儒 肖丽萍 《无线电通信技术》 2010年第2期22-24,共3页
ABBA码是一种可用于3个以上发射天线系统的准正交空时分组码,该方案虽然可以实现全速率传输,但是其译码复杂度高。针对上述缺点提出了一种基于星座旋转的能够实现满分集增益、全速率传输的准正交空时分组码,给出了接收端最大似然译码的... ABBA码是一种可用于3个以上发射天线系统的准正交空时分组码,该方案虽然可以实现全速率传输,但是其译码复杂度高。针对上述缺点提出了一种基于星座旋转的能够实现满分集增益、全速率传输的准正交空时分组码,给出了接收端最大似然译码的独立译码方案,简化了译码过程,降低了译码复杂度,仿真结果表明其误码性能与ABBA码相比得到了较大的改善。 展开更多
关键词 准正交空时分组码 发送分集 最大似然译码 ABBA码
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新国科 新方向——访ABBA国科精工(上海)有限公司总经理王辉
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作者 于永初(记者) 李缦(记者) 《现代零部件》 2009年第7期58-59,共2页
MC记者:“New ABBA New Linear Tech”,SKF并购ABBA之后带来了哪些变化?王辉总经理(以下简称王总):SKF作为全球最大的轴承工业集团,旗下拥有轴承和轴承单元、密封件、机电一体化产品、润滑及服务五大技术平台。并购ABBA以来,SK... MC记者:“New ABBA New Linear Tech”,SKF并购ABBA之后带来了哪些变化?王辉总经理(以下简称王总):SKF作为全球最大的轴承工业集团,旗下拥有轴承和轴承单元、密封件、机电一体化产品、润滑及服务五大技术平台。并购ABBA以来,SKF集团一直以提升ABBA产品品质及品牌价值作为最重要的使命。 展开更多
关键词 ABBA SXT 直线导轨
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商品贯众中总间苯三酚含量测定方法研究 被引量:11
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作者 高增平 苏雨雷 《北京中医药大学学报》 CAS CSCD 北大核心 2009年第4期259-262,共4页
目的建立总间苯三酚的含量测定方法,并测定不同地区商品贯众中总间苯三酚的含量。方法采用可见分光光度法,以绵马贯众素ABBA为对照品,0.5%坚牢蓝BB盐溶液为显色剂,室温放置20 min显色,在476 nm波长下测定吸光度,标准曲线法计算供试品中... 目的建立总间苯三酚的含量测定方法,并测定不同地区商品贯众中总间苯三酚的含量。方法采用可见分光光度法,以绵马贯众素ABBA为对照品,0.5%坚牢蓝BB盐溶液为显色剂,室温放置20 min显色,在476 nm波长下测定吸光度,标准曲线法计算供试品中总间苯三酚的含量。结果绵马贯众素ABBA在6.42~38.52μg范围内线性关系良好,回归方程A=20.957C+0.013 3, r=0.999 6;精密度良好,RSD=1.44%;供试品溶液显色后90 min内稳定,RSD=1.58%。本法测定的重复性良好,RSD=2.11%;平均加样回收率为98.33%,RSD=1.08%(n=5)。结论该法可用于商品贯众中总间苯三酚的含量测定。 展开更多
关键词 商品贯众 间苯三酚 绵马贯众素ABBA 含量测定 可见分光光度法
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基于广义ABBA空时分组码的OFDM系统
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作者 钟伟 李路 《通信技术》 2011年第6期59-61,共3页
采用准正交设计的空时分组码虽然可以达到速率为1,但是牺牲了部分分级增益。广义ABBA(GABBA,Generalized ABBA)空时分组码提出了一种改进型块状迭代准正交分组空时码(QOSTBC,Quasi-orthogonal Space-time Code)编码方式。此编码方式能... 采用准正交设计的空时分组码虽然可以达到速率为1,但是牺牲了部分分级增益。广义ABBA(GABBA,Generalized ABBA)空时分组码提出了一种改进型块状迭代准正交分组空时码(QOSTBC,Quasi-orthogonal Space-time Code)编码方式。此编码方式能提供全分集增益,并且满速率传输。克服原有正交分组空时码(OSTBC,Orthogonal Space-time Block Codes)在多天线(天线数大于2)、复信号时不能实现全速率传送的缺点。OFDM调制技术是抗多径效应的有效手段之一,两者相结合的MIMO-OFDM系统很好利用了时间、空间和频率三种分集,使系统达到很高的传输效率和频谱利用率。 展开更多
关键词 多天线技术 空时分组码 广义ABBA码 OFDM调制
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英国歌舞秀《舞蹈皇后》来华演绎ABBA音乐
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《音乐生活》 2008年第5期5-,共1页
《舞蹈皇后》演出主办方透露,英国大型歌舞秀《舞蹈皇后》于5月9日至11日再度来华,在保利剧院为观众带来ABBA乐队的经典音乐,表演32首ABBA金曲,40段舞蹈。
关键词 歌舞 ABBA 音乐 英国 大不列颠及北爱尔兰联合王国
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ABBA乐队: Fernando
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作者 汪海涛 《新东方英语》 2004年第02M期74-75,共2页
ABBA乐队是瑞典国宝级的音乐代表,他们的系列专辑在70、80年代风靡世界,美国摇滚和英国朋克尚未征服大批听众时。ABBA绚烂多彩、充满青春活力的北欧disco风格歌曲已席卷流行乐市场,成为舞会、狂欢的DJ热播之作。乐队由键盘手Benny An... ABBA乐队是瑞典国宝级的音乐代表,他们的系列专辑在70、80年代风靡世界,美国摇滚和英国朋克尚未征服大批听众时。ABBA绚烂多彩、充满青春活力的北欧disco风格歌曲已席卷流行乐市场,成为舞会、狂欢的DJ热播之作。乐队由键盘手Benny Andersson、吉他手BjornUlvaeus、歌手Agnetha Faltskog和AnniFrm Lyngstad组成,“ABBA”代表了4个人的姓名的第一个字母。一曲“Waterloo” 展开更多
关键词 ABBA乐队 瑞典 Fernando 英文歌曲 流行音乐
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音乐剧《妈妈咪呀!》——一部造钱的机器
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作者 张毅 《高保真音响》 2004年第7期95-96,共2页
当年音乐剧《妈妈咪呀!》在1999年4月6日伦敦上演时,没有什么人指望这部以22首ABBA歌曲为整部音乐剧灵魂作品的音乐剧会大受欢迎。当时的《妈妈咪呀!》充其量是在对伦敦的爱德华王子剧场上演的百老汇音乐剧《拉格泰姆》的一个补充。... 当年音乐剧《妈妈咪呀!》在1999年4月6日伦敦上演时,没有什么人指望这部以22首ABBA歌曲为整部音乐剧灵魂作品的音乐剧会大受欢迎。当时的《妈妈咪呀!》充其量是在对伦敦的爱德华王子剧场上演的百老汇音乐剧《拉格泰姆》的一个补充。但是到了2003年,《拉格泰姆》在伦敦所得到的评论却是相当多的负面批评。 展开更多
关键词 音乐剧 《妈妈咪呀!》 故事情节 ABBA
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