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An integrated method of selecting environmental covariates for predictive soil depth mapping 预览
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作者 LU Yuan-yuan LIU Feng +2 位作者 ZHAO Yu-guo SONG Xiao-dong ZHANG Gan-lin 《农业科学学报:英文版》 SCIE CAS CSCD 2019年第2期301-315,共15页
Environmental covariates are the basis of predictive soil mapping.Their selection determines the performance of soil mapping to a great extent,especially in cases where the number of soil samples is limited but soil s... Environmental covariates are the basis of predictive soil mapping.Their selection determines the performance of soil mapping to a great extent,especially in cases where the number of soil samples is limited but soil spatial heterogeneity is high.In this study,we proposed an integrated method to select environmental covariates for predictive soil depth mapping.First,candidate variables that may influence the development of soil depth were selected based on pedogenetic knowledge.Second,three conventional methods(Pearson correlation analysis(PsCA),generalized additive models(GAMs),and Random Forest(RF))were used to generate optimal combinations of environmental covariates.Finally,three optimal combinations were integrated to produce a final combination based on the importance and occurrence frequency of each environmental covariate.We tested this method for soil depth mapping in the upper reaches of the Heihe River Basin in Northwest China.A total of 129 soil sampling sites were collected using a representative sampling strategy,and RF and support vector machine(SVM)models were used to map soil depth.The results showed that compared to the set of environmental covariates selected by the three conventional selection methods,the set of environmental covariates selected by the proposed method achieved higher mapping accuracy.The combination from the proposed method obtained a root mean square error(RMSE)of 11.88 cm,which was 2.25–7.64 cm lower than the other methods,and an R~2 value of 0.76,which was 0.08–0.26 higher than the other methods.The results suggest that our method can be used as an alternative to the conventional methods for soil depth mapping and may also be effective for mapping other soil properties. 展开更多
关键词 ENVIRONMENTAL COVARIATE selection integrated method PREDICTIVE SOIL MAPPING SOIL depth
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Research on Marketing Strategy of Rural Tourism 预览
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作者 Yue Hanqi 《当代农业:中英文版》 2019年第1期14-18,共5页
As a new type of tourism development model, rural tourism had broad development space and great development potential. The article studies the rural tourism marketing strategy, based on a brief summary of the post-urb... As a new type of tourism development model, rural tourism had broad development space and great development potential. The article studies the rural tourism marketing strategy, based on a brief summary of the post-urban tourism marketing situation. Taked Suzhou rural tourism as an example, the shortcomings of marketing and marketing were discussed, which were reflected in the lack of market research, the serious urbanization of tourism development, and the single product. It proposed to promote marketing from the aspects of market positioning, producted design and integrated marketing to promote the development of rural tourism. 展开更多
关键词 RURAL TOURISM MARKETING MARKET POSITIONING INTEGRATED MARKETING
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Nonvolatile waveguide transmission tuning with electrically-driven ultra-small GST phase-change material
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作者 Hanyu Zhang Linjie Zhou +5 位作者 Jian Xu Ningning Wang Hao Hu Liangjun Lu B. M. A. Rahman Jianping Chen 《科学通报:英文版》 SCIE EI CSCD 2019年第11期782-789,共8页
Low-power reconfigurable optical circuits are highly demanded to satisfy a variety of different applications. Conventional electro-optic and thermo-optic refractive index tuning methods in silicon photonics are not su... Low-power reconfigurable optical circuits are highly demanded to satisfy a variety of different applications. Conventional electro-optic and thermo-optic refractive index tuning methods in silicon photonics are not suitable for reconfiguration of optical circuits due to their high static power consumption and volatility. We propose and demonstrate a nonvolatile tuning method by utilizing the reversible phase change property of GST integrated on top of the silicon waveguide. The phase change is enabled by applying electrical pulses to the lm-sized GST active region in a sandwich structure. The experimental results show that the optical transmission of the silicon waveguide can be tuned by controlling the phase state of GST. 展开更多
关键词 Phase change material NONVOLATILE optical switch Integrated optics devices CHALCOGENIDE Ge2Sb2Te5
Coastal Environmental Changes and Management in China in the Context of Global Changes and Human Activities 预览
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作者 Yunfeng ZHANG Yingying CHEN +2 位作者 Xiaobin HUA Shiqing YAN Lili ZOU 《亚洲农业研究:英文版》 2019年第7期24-30,33共8页
Coastal zone is the complex area with intense sea-land interaction. There are various types, complex environments and developed economy in coastal area of China. Under the influence of global change and human activiti... Coastal zone is the complex area with intense sea-land interaction. There are various types, complex environments and developed economy in coastal area of China. Under the influence of global change and human activities, the ecosystem of coastal zone is vulnerable and has sensitive response to environment changes. The environmental problems of sea-level rising have attached close attention by countries all over the world. As far as regions concerned, relative sea-level rising is more important than theoretical sea-level rising. The relative sea-level rising has resulted in series of environment disasters in coastal area of China, such as coastal erosion, seawater invasion, and floods in coastal lowlands, etc. The flux of sediments transported by rivers into sea is the main material source of marine pollution. The human activities are controlling factors of variations in river sediment loads. Under the influence of high strength development in the upstream region, the results are that the reduction of seagoing sediments in main rivers of China, and damage of coastal material balance. Land-based pollution is the main source of marine pollution. With rapid economic development in China s eastern coastal, pollutants flux into sea increase gradually. The results are that the environmental quality and seawater quality of marine have being deteriorated and pollution is serious increasingly. To meet the land demand of industrialization and urbanization, the sea reclamation has become an effective means to alleviate the contradiction between human and land in coastal area of China. This leads to large-scale reduction of coastal wetland area, and the heavy losses of ecological service value of coastal wetland. To face the environmental changes in coastal area of China and solve the contradiction among population, resources, environment, development, it is required to set up the system concept of man-land-sea relationship, so as to achieve sustainable development. The feasible measures include improving coastal management s 展开更多
关键词 Costal areas ENVIRONMENTAL changes Human ACTIVITIES Integrated management
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智能变电站一体化辅助系统的分析 预览
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作者 陈晓勇 《通信电源技术》 2019年第4期121-123,共3页
随着变电站建设信息数字化、通信平台网络化及信息共享标准化的持续深入,要求智能辅助各子系统通过集成优化,实现全站辅助设备信息的统一接入、统一展示及统一管理,且实现智能告警、远程控制及综合联动等功能。因此,介绍和分析了智能变... 随着变电站建设信息数字化、通信平台网络化及信息共享标准化的持续深入,要求智能辅助各子系统通过集成优化,实现全站辅助设备信息的统一接入、统一展示及统一管理,且实现智能告警、远程控制及综合联动等功能。因此,介绍和分析了智能变电站一体化辅助系统的各子系统,为一体化智能辅助系统设计、安装及建设提供参考。 展开更多
关键词 智能变电站 一体化 辅助系统
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Professor Xudong Tang's experience in the treatment of gastroesophageal reflux 预览
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作者 Bo Li Yonghui Pang +1 位作者 Xuejiao Wang Xudong Tang 《TMR理论与假说》 2019年第2期189-194,共6页
Professor Xudong Tang believes that definite diagnosis is the key to gastroesophageal reflux disease treatment,and the treatment of refluxesophagitis should be combined with PH monitoring and clinical symptoms differe... Professor Xudong Tang believes that definite diagnosis is the key to gastroesophageal reflux disease treatment,and the treatment of refluxesophagitis should be combined with PH monitoring and clinical symptoms differentiation.Generally,according to the degree of acid regurgitation,it can be divided into different traditional Chinese medical syndromes:the liver-stomach depressionheat syndrome differentiation is the main type of acid regurgitation,while the liver-qi stagnation is the main type of acid regurgitation.In addition,attention should be paid to the step-down therapy of combination of traditional Chinese and Western medicine in the process of discontinuation.The lower efficacy of Western medicine should be used successively,together with traditional Chinese medicine Decoction,which can often achieve the effect of stopping recurrence.In addition,the traditional Chinese medicine prescription imitates Jianhua Dong's well-known old Chinese medicine thought,believing that the pathogenesis of gastroesophageal reflux disease is mainly Qi stagnation,the location of the disease is in the stomach,involving the liver and spleen.On the basis of Dr Dong Ganwei Baihe Decoction,the experience of treating gastroesophageal reflux disease with Lianzhu Liuyi Pill combined with Huagan Decoction was summarized. 展开更多
关键词 GASTROESOPHAGEAL REFLUX disease Xudong TANG Integrated TRADITIONAL Chinese and Western MEDICINE
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YCZ-9 5/8型一体式开窗侧钻工具的研制 预览
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作者 陈杰 《机械工程师》 2019年第8期135-137,共3页
针对传统套管侧钻工具存在作业程序复杂、坐封成功率低的问题,开发YCZ-9 5/8型一体式开窗侧钻工具。该工具包括钻铰式铣锥、斜向器、锚定器和护套以及传压管线。在主井眼准备工作完成后,可实现单趟下钻开窗作业(包括定向、固定导斜器、... 针对传统套管侧钻工具存在作业程序复杂、坐封成功率低的问题,开发YCZ-9 5/8型一体式开窗侧钻工具。该工具包括钻铰式铣锥、斜向器、锚定器和护套以及传压管线。在主井眼准备工作完成后,可实现单趟下钻开窗作业(包括定向、固定导斜器、套管开窗、窗户修复等)。对该工具工作原理、结构特点及试验情况进行了分析。对斜向器结构进行了优化设计,可确保斜向器在开窗过程中不会下移和旋转。降低了作业成本,提高了成功率。 展开更多
关键词 一体式 开窗侧钻 斜向器 锚定 卡瓦 铣锥
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Tourism Performance Demonstrating the Integration of Culture and Tourism 预览
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作者 Zhang Mei 《中外文化交流:英文版》 2019年第2期30-31,共2页
Traditional skills, performing arts and other intangible cultural heritage projects should be promoted in key tourist attractions and tourist resorts. Red tourism, tourism performance, cultural heritage tourism, theme... Traditional skills, performing arts and other intangible cultural heritage projects should be promoted in key tourist attractions and tourist resorts. Red tourism, tourism performance, cultural heritage tourism, theme park, culture theme hotel have experienced integrated development 2nd upgraded formats. 展开更多
关键词 TRADITIONAL SKILLS INTANGIBLE CULTURAL integrated development
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Possibility In Adversity Pacific Island nations'development dreams may get a boost if China and Australia cooperate in the region
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作者 David Morris 《北京周报:英文版》 2019年第4期20-21,共2页
Australia and China are strategic partners, with deeply integrated economies and growing people-to-people links.When there are differences,they are overcome with maturity and in the mutual interest of working together.
关键词 AUSTRALIA and China deeply integrated differences
World Integrated Medicine Master Wu Xianzhong 预览
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作者 邹建华 曹惜惜 周阿剑 《世界中西医结合杂志(英文)》 2019年第4期1-9,共9页
INTRODUCTION OF WU XIANZHONG Academician Wu Xianzhong (born on August 28th,1925) graduated from Shenyang Medical College in 1948.In 1959,he participated in the traditional Chinese medicine (TCM) courses held by Tianji... INTRODUCTION OF WU XIANZHONG Academician Wu Xianzhong (born on August 28th,1925) graduated from Shenyang Medical College in 1948.In 1959,he participated in the traditional Chinese medicine (TCM) courses held by Tianjin University of Traditional Chinese Medicine for doctors of western medicine.In 1961,he graduated and was awarded the golden medal by National Health Commission.He has been specialized in surgery of integrated Chinese and western medicine since the early 1960s and works as one of the pioneers in the field of integrated Chinese and western medicine in China.He established Tianjin Hospital of Integrated Traditional Chinese and Western Medicine and the Institute of Acute Abdominal Diseases in Integrated Chinese and Western Medicine.From 1964 to 1977,he served as Director of Nankai Hospital.From 1978 to 1994,he served as Deputy Director,Director and Honorary President of Tianjin Medical College (known as Tianjin Medical University nowadays). 展开更多
关键词 World INTEGRATED TRADITIONAL Chinese medicine(TCM) WU Xianzhong
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运载火箭一体化电气系统设计及关键技术 预览
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作者 徐洋 宋敬群 +2 位作者 王海涛 彭越 王子瑜 《兵器装备工程学报》 CAS 北大核心 2019年第A01期50-53,共4页
依据模块化、集成化、高可靠、易扩展的设计原则,提出一种主要单机基于OpenVPX标准设计的运载火箭一体化电气系统方案。
关键词 电气系统 一体化 OpenVPX
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应用型地方高校综合型虚拟仿真实验教学中心建设的思考 预览
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作者 王慧 《江苏科技信息》 2019年第13期75-80,共6页
综合型虚拟仿真实验室实现了对两型人才的培养,优化了各个专业实践教学资源,提高了多专业学生协同创新实践能力。文章结合应用型地方高校办学指导方针以及对接地方经济发展需求,论述了应用型地方高校综合型虚拟仿真实验教学中心的建设... 综合型虚拟仿真实验室实现了对两型人才的培养,优化了各个专业实践教学资源,提高了多专业学生协同创新实践能力。文章结合应用型地方高校办学指导方针以及对接地方经济发展需求,论述了应用型地方高校综合型虚拟仿真实验教学中心的建设可行性和建设意义,进一步分析了中心的建设理念和思路,提出了建设有利于孵化"两型人才"的"虚实结合、协同创新、优势互补"的综合型虚拟仿真实验教学中心的观点。首先立足于人才培养计划,制定合理的实践教学体系;其次建立"共建共享共创"的实验室管理及运行机制;再次制定合理的引导策略,鼓励各个专业协同创新驱动发展;最后合理应用鲶鱼效应,开展"协作创新设计"活动。 展开更多
关键词 虚拟仿真实验 实验教学中心 综合型 应用型 地方高校
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小型语音交互移动数字图书亭设计与实现 预览
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作者 金晶 雷应碧 杨义霞 《河南科技》 2019年第10期11-13,共3页
近年来,移动数字图书馆发展迅猛,已然成为人们阅读学习的一大平台。但其内的书籍依靠网络而存在,缺乏实体性,无法满足视障等人群的阅读需要。因此,本文提出设计数字图书馆与实体图书馆服务相结合的小型语音交互移动数字图书亭,其以线上... 近年来,移动数字图书馆发展迅猛,已然成为人们阅读学习的一大平台。但其内的书籍依靠网络而存在,缺乏实体性,无法满足视障等人群的阅读需要。因此,本文提出设计数字图书馆与实体图书馆服务相结合的小型语音交互移动数字图书亭,其以线上线下并行、残健共融为特色。同时,从服务理念、服务人群、服务管理三个方面对其常规运行进行规划,并对建设中的技术难点提出解决方案,以期待图书亭能够顺利运行,最大程度上满足各类阅读者需求,进一步推动全民阅读的发展。 展开更多
关键词 移动数字图书亭 残健共融 线上线下并行 设计
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An Adaptive Routing Algorithm for Integrated Information Networks 预览
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作者 Feng Wang Dingde Jiang Sheng Qi 《中国通信:英文版》 SCIE CSCD 2019年第7期195-206,共12页
The integrated information network is a large capacity information network that integrates various communication platforms on the ground, at sea, in the air and in the deep air through the inter-satellite and satellit... The integrated information network is a large capacity information network that integrates various communication platforms on the ground, at sea, in the air and in the deep air through the inter-satellite and satellite-ground links to acquire information accurately, process it quickly, and transmit it efficiently. The satellite communication, as an important part of integrated information networks, is one of main approaches to acquire, process and distribute communication information and resources. In this paper, based on current researches of the satellite communication network, we put forward a 3-layer satellite communication network model based on the Software Defined Network (SDN). Meanwhile, to improve current routing policies of the Low Earth Orbit (LEO) satellite communication network, we put forward an Adaptive Routing Algorithm (ARA) to sustain the shortest satellite communication link. Experiment results show that the proposed method can effectively reduce link distance and communication delay, and realize adaptive path planning. 展开更多
关键词 INTEGRATED information NETWORK software defined NETWORK SATELLITE communication ROUTING POLICY adaptive PATH planning
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多模块平台集成化箱体式连接器力学特性及试验研究 预览
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作者 张浩 祁恩荣 +3 位作者 宋强 陆晔 赵南 王秀娟 《海洋工程》 CSCD 北大核心 2019年第4期1-8,53共9页
以两模块平台集成化箱体式连接器为研究对象,研究此类连接器的力学特性,探究箱体式连接器的应力分布状态以及重要力学参数。以弹性接触方程为基础,采用罚函数方法,建立连接器本体、钢轴与轴承座之间的接触关系,结合模型试验,验证所提出... 以两模块平台集成化箱体式连接器为研究对象,研究此类连接器的力学特性,探究箱体式连接器的应力分布状态以及重要力学参数。以弹性接触方程为基础,采用罚函数方法,建立连接器本体、钢轴与轴承座之间的接触关系,结合模型试验,验证所提出接触计算方法准确性,并进一步对连接器半对称结构进行极限强度分析。分析结果表明:连接器的纵向和垂向的极限承载力约为40000kN,其纵向弹性刚度约为3×10^9N/m,垂向弹性刚度约为1.5×10^9N/m。对连接器应力分布进一步分析表明,连接器主体结构的水密舱壁为主要承力构件,其轴承孔周边区域为应力集中的主要区域,当荷载较大时,轴承孔周围会率先发生屈服破坏,因此,连接器带孔水密舱壁的材料强度是影响连接器整体极限强度的主要因素。 展开更多
关键词 多模块平台 连接器 极限强度 集成化 箱体式 弹性刚度
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深水“一体化”保温测试液体系研究与性能评价 预览
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作者 李中 吴志明 +3 位作者 向兴金 颜帮川 余意 刘智勤 《钻井液与完井液》 CAS 北大核心 2019年第4期517-521,共5页
针对国内深水单层隔水管柱测试作业具有隔热性差、上部隔水管环空与下部油套环空连通会影响测试性和传压性等特点,研制了由合成多元醇与还原糖醇复配而成的低导热系数非水基液“一体化”保温测试液。并对该保温测试液进行了导热性、密... 针对国内深水单层隔水管柱测试作业具有隔热性差、上部隔水管环空与下部油套环空连通会影响测试性和传压性等特点,研制了由合成多元醇与还原糖醇复配而成的低导热系数非水基液“一体化”保温测试液。并对该保温测试液进行了导热性、密度可调性、可泵性、流变性等性能的评价,实验结果表明,该测试液抗温可达150℃,导热系数为0.2428~0.2866W/(mK),密度能在1.05~1.50g/cm^3或者1.50~1.05g/cm^3间由低到高或由高到低调节,150℃静止15d的沉降降因子为0.50,25℃下表观黏度不大于70mPas,4℃下静切力不大于3Pa,具有较好的传压性,150℃下的3d平均腐蚀速率为0.0369~0.0690mm/a,岩心渗透率恢复值达95%以上;另外该保温测试液不仅环境友好,含油量为零,能满足GB18420.12009《海洋石油勘探开发污染物生物毒性第1部分:分级》标准中一级海域使用要求,而且还可回收再利用,可大大节约测试成本。可以用于深水单层隔水管测试作业。 展开更多
关键词 深水 一体化 保温测试液 研究 评价
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New design of ferroelectric solar cell combined with luminescent solar concentrator
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作者 Slimane Latreche Mohamed Fathi Abderrahmane Kadri 《中国物理B:英文版》 SCIE EI CAS CSCD 2019年第8期417-424,共8页
A new transparent photovoltaic panel composed of a luminescent solar concentrator and Al/BaTiO3/ZnO/Pt ferroelectric solar cells is presented,in which a portion of the incoming solar illumination is converted by the f... A new transparent photovoltaic panel composed of a luminescent solar concentrator and Al/BaTiO3/ZnO/Pt ferroelectric solar cells is presented,in which a portion of the incoming solar illumination is converted by the fluorophores to ultraviolet(UV)light which is then absorbed by ZnO.Firstly,the solar cells are simulated using Atlas-Silvaco.Then,the panel is modelled based on the obtained solar cell characteristics.This panel would be of great importance for building integrated photovoltaics domain because of its high transparency. 展开更多
关键词 Atlas-Silvaco FERROELECTRIC SOLAR cell LUMINESCENT SOLAR CONCENTRATOR building integrated PHOTOVOLTAIC
Comparison of efficacy and safety between late-course and simultaneous integrated dose-increasing intensity-modulated radiation therapy for cervical cancer complicated with pelvic lymph node metastasis 预览
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作者 Yi Cheng Nan Huang +3 位作者 Jing Zhao Jianhua Wang Chen Gong Kai Qin 《肿瘤学与转化医学:英文版》 2019年第1期25-29,共5页
Objective This study aimed to compare and analyze the clinical efficacy and safety of late-course and simultaneous integrated dose-increasing intensity-modulated radiation therapy(IMRT) for cervical cancer complicated... Objective This study aimed to compare and analyze the clinical efficacy and safety of late-course and simultaneous integrated dose-increasing intensity-modulated radiation therapy(IMRT) for cervical cancer complicated with pelvic lymph node metastasis. Methods Sixty patients with cervical cancer complicated with pelvic lymph node metastasis who were admitted to our hospital from January 2013 to January 2015 were enrolled. The patients were randomly divided into the late-course dose-increasing IMRT group and the simultaneous integrated dose-increasing IMRT group, with 30 cases included in each group, respectively. All patients were concurrently treated with cisplatin. After treatment, the clinical outcomes of the two groups were compared. Results The remission rate of symptoms in the simultaneous integrated dose-increasing IMRT group was significantly higher than that in the late-course dose-increasing IMRT group(P < 0.05). The follow-up results showed that the overall survival time, progression-free survival time, and distant metastasis time of patients in the simultaneous integrated dose-increasing IMRT group were significantly longer than those in the late-course dose-increasing IMRT group(P < 0.05). The recurrent rate of lymph nodes in the radiation field in the simultaneous integrated dose-increasing IMRT group was significantly lower(P < 0.05) than in the late-course dose-increasing IMRT group. There was no significant difference in the incidence of cervical and vaginal recurrence and distant metastasis between the two groups(P > 0.05). The radiation doses of Dmax in the small intestine, D1 cc(the minimum dose to the 1 cc receiving the highest dose) in the bladder, and Dmax in the rectum in the simultaneous integrated dose-increasing IMRT group were significantly lower(P < 0.05) than in the late-course dose-increasing IMRT group. There was no significant difference in intestinal D2 cc(the minimum dose to the 2 cc receiving the highest dose) between the two groups(P > 0.05). The incidence of bone marrow suppr 展开更多
关键词 SIMULTANEOUS integrated dose-increasing INTENSITY-MODULATED radiation therapy late-course dose-increasing INTENSITY-MODULATED radiation therapy cervical cancer COMPLICATED with pelvic lymph node metastasis clinical efficacy safety
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Communication Resource Planning Algorithm Based on Time Triggered DIMA Architecture 预览
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作者 Hongchun Wang Buqun Luan Wensheng Niu 《北京理工大学学报:英文版》 EI CAS 2019年第2期327-335,共9页
Traditional scheduling algorithms for avionics communication have the shortcoming of messages accumulation,the efficiency and reliability of the service can be improved by combining the distributed integrated modular ... Traditional scheduling algorithms for avionics communication have the shortcoming of messages accumulation,the efficiency and reliability of the service can be improved by combining the distributed integrated modular avionics(DIMA)system with a time trigger mechanism.To further improve the utilization of system resources,the static scheduling algorithm of time triggered service is studied.By making the time trigger message schedule dispersedly,the stabilities of both the available time slots for the event triggered messages and the system will be improved.An improved two-dimensional bin packing algorithm is also presented to achieve the above-mentioned purpose with an extra benefit of better delay performance. 展开更多
关键词 distributed integrated MODULAR AVIONICS TIME-TRIGGERED TWO-DIMENSIONAL BIN packing ALGORITHM
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互联网语境中融合性文化记忆与融通性国家认同 预览
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作者 黄卫星 张玉能 《青岛科技大学学报:社会科学版》 2019年第3期88-93,共6页
文化记忆的融合性效应是在网络的互动中,与文化记忆的互补性、矛盾性一起产生的。它可以在与用户(读者)的互动之中使文化记忆变得更加生动具体;它还可以在交互之中通过矛盾性的异延使文化记忆变得更加特色鲜明;它又能够在交融之中使文... 文化记忆的融合性效应是在网络的互动中,与文化记忆的互补性、矛盾性一起产生的。它可以在与用户(读者)的互动之中使文化记忆变得更加生动具体;它还可以在交互之中通过矛盾性的异延使文化记忆变得更加特色鲜明;它又能够在交融之中使文化记忆变得融会贯通。因此,文化记忆经过了互联网的互动性操作处理以后,就会出现多副面孔,变得活灵活现,达到动态呈现。人们的文化记忆在经过了这种互补性、矛盾性、融合性效应处理以后,可以使人们更好地认同自己的民族和国家,刻骨铭心、不忘初心、矢志不移地构建自己的身份意识。 展开更多
关键词 互联网 文化记忆 融合性 融通性 国家认同
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