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美国白蛾在湖北孝感市的生物学特性与防治措施

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湖北林业科技 2018年第5期47卷 30-33页

作者：闵水发曾文豪陈益娴罗治建陈亮陈肆湖北生态工程职业技术学院武汉430200 湖北省林业有害生物防治检疫总站武汉430079 湖北大悟县森林病虫害防治站孝感432800

采取室内观察和室外调查相结合的方法,研究了美国白蛾在湖北孝感市的生物学特性。结果表明:美国白蛾在湖北孝感市1年发生3代,以蛹越冬,以幼虫危害多种树木。在此基础上,提出了检疫措施、人工防治、物理防治、生物防治、化学防治等综合... 详细信息

采取室内观察和室外调查相结合的方法,研究了美国白蛾在湖北孝感市的生物学特性。结果表明:美国白蛾在湖北孝感市1年发生3代,以蛹越冬,以幼虫危害多种树木。在此基础上,提出了检疫措施、人工防治、物理防治、生物防治、化学防治等综合防治技术措施。

关键词：美国白蛾生物学特性综合防治湖北省

A blind quantum signature protocol using the GHZ states

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Science China(Physics,Mechanics & Astronomy) 2013年第9期56卷 1636-1641页

作者： WANG MingMing chen XiuBo YANG yixian Information Security Center State Key Laboratory of Networking and Switching TechnologyBeijing University of Posts and Telecommunications State Key Laboratory of Information Security(Institute of Information Engineering Chinese Academy of Sciences)

Recently,some blind quantum signature(BQS) protocols have been *** the previous schemes have security and efficiency *** on the entangled Greenberger-Horne-Zeilinger(GHZ) states,a new weak BQS protocol is *** with some existing schemes,our protocol has 100% ***,the protocol is simple and easy to *** security of the protocol is guaranteed by the correlation of the GHZ particles held by each *** our protocol,the signatory is kept blind from the content of the *** to the security analysis,the signatory cannot disavowal his/her signature while the signature cannot be forged by others.

关键词： blind quantum signature GHZ state efficiency security

Population Dynamics and Fourier Series Analysis of Toona ciliata of Qizimeishan Nature Reserve

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Agricultural Science & Technology 2015年第8期16卷 1745-1750页

作者：陈益娴操英南张敏李新枝汪洋湖北生态工程职业技术学院湖北武汉430200

To investigate the population dynamics of Toona ciliata in Qizimeishan Na- ture Reserve, the age classes and population quantity of Toona clliata in Qizimeishan were analyzed by transforming diameter classes into corresponding age classes. A static life table was prepared. Moreover, the curves of survival rate, mortality rate and killing powder were drawn so as to perform spectral analysis for Toona clliata in Qizimeishan Nature Reserve. The results showed that the Vpi and Vpf of the Toona ci/iata population were 32.32% and 4.039%, respectively, indicating that Toona ci/iata is a stable growth-oriented population with high risk sensitivity. The survival rate curve was approximately fitted to the Deevey II type, so the individuals in each age class had an equivalent mortality rate in overall. The qx and Kx all reached peaks si- multaneously at 1, 4 and 6 age classes, indicating great effects of physiological properties, environmental sieves and human disturbances on Toona ci/iata population at various growth stages. The spectral analysis showed that the fundamental wave A1 was 0.752 8, while A3 showed an obvious minor cycle deviating from AI. It suggests that there is a periodicity, with minor cycles of multi-harmonic superposition, in natural regeneration of Toona ciliata population.

关键词： Toona ciliata Population dynamics Spectral analysis

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汽车LED大灯灯光智能切换装置的设计

汽车实用技术 2018年第17期44卷 163-165页

作者：陈益贤陈鹏羽石登龙孙移孟昭军辽宁科技学院电气与信息工程学院辽宁本溪117000

文章设计了一种能因汽车会车时自动调节远近光灯的系统装置,讨论了其设计方法和实现电路等问题。系统可以在汽车夜间正常行驶时开启远光灯,当会车时远光灯自动切换为近光灯,避免会车时灯光太强且直射眼睛,使得司机产生眩目从而影响视线... 详细信息

文章设计了一种能因汽车会车时自动调节远近光灯的系统装置,讨论了其设计方法和实现电路等问题。系统可以在汽车夜间正常行驶时开启远光灯,当会车时远光灯自动切换为近光灯,避免会车时灯光太强且直射眼睛,使得司机产生眩目从而影响视线,造成不必要的交通事故,达到最优化使用汽车照明系统,提高夜间驾车的安全性。

关键词：智能远光灯自动切换

Quantum network coding for multi-unicast problem based on 2D and 3D cluster states

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Science China(Information Sciences) 2016年第4期59卷 5-19页

作者： Jing LI Xiubo chen Xingming SUN Zongpeng LI yixian YANG Information Security Center State Key Laboratory of Networking and Switching TechnologyBeijing University of Posts and Telecommunications Department of Computer Science University of Calgary School of Computer and Software Nanjing University of Information Science & Technology

We mainly consider quantum multi-unicast problem over directed acyclic network, where each source wishes to transmit an independent message to its target via bottleneck channel. Taking the advantage of global entanglement state 2D and 3D cluster states, these problems can be solved efficiently. At first, a universal scheme for the generation of resource states among distant communication nodes is provided. The corresponding between cluster and bigraph leads to a constant temporal resource cost. Furthermore, a new approach based on stabilizer formalism to analyze the solvability of several underlying quantum multi-unicast networks is presented. It is found that the solvability closely depends on the choice of stabilizer generators for a given cluster state. And then, with the designed measurement basis and parallel measurement on intermediate nodes, we propose optimal protocols for these multi-unicast sessions. Also, the analysis reveals that the resource consumption involving spatial resources, operational resources and temporal resources mostly reach the lower bounds.

关键词： quantum information network coding multi-unicast cluster state stabilizer formalism

High-efficiency quantum steganography based on the tensor product of Bell states

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Science China(Physics,Mechanics & Astronomy) 2013年第9期56卷 1745-1754页

作者： XU ShuJiang chen XiuBo NIU XinXin YANG yixian Information Security Center State Key Laboratory of Networking and Switching TechnologyBeijing University of Posts and Telecommunications Shandong Provincial Key Laboratory of Computer Network Shandong Computer Science Center State Key Laboratory of Information Security Institute of Information EngineeringChinese Academy of Sciences

In this paper,we first propose a hidden rule among the secure message,the initial tensor product of two Bell states and the final tensor product when respectively applying local unitary transformations to the first particle of the two initial Bell states,and then present a high-efficiency quantum steganography protocol under the control of the hidden *** the proposed quantum steganography scheme,a hidden channel is established to transfer a secret message within any quantum secure direct communication(QSDC) scheme that is based on 2-level quantum states and unitary *** secret message hiding/unhiding process is linked with the QSDC process only by unitary *** accurately describe the capacity of a steganography scheme,a quantitative measure,named embedding efficiency,is introduced in this *** performance analysis shows that the proposed steganography scheme achieves a high efficiency as well as a good ***,it is shown that this scheme can resist all serious attacks including the intercept-resend attack,measurement-resend attack,auxiliary particle attack and even the Denial of Service *** improve the efficiency of the proposed scheme,the hidden rule is extended based on the tensor product of multiple Bell states.

关键词： quantum steganography embedding efficiency quantum secure direct communication tensor product Bell state

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川中高磨地区灯四气藏储层三维地质建模

石化技术 2024年第2期31卷 175-177页

作者：潘恒廖明光王家辉朱童陈艺娴西南石油大学油气藏地质及开发工程国家重点实验室四川成都610500 中国石油川庆钻探地质勘探研究院四川成都610500 成都代瑞克能源技术有限公司四川成都610500

四川盆地的碳酸盐岩广泛沉积,而GM井区的灯四气藏是主要的产能贡献区域,且地貌非常复杂,这些因素导致了该区域内储层的储集空间复杂,储层的非均质性很强,而且储层品质和发育位置之间存在很大的差异。为了更好地理解这些储层的差异,以便... 详细信息

四川盆地的碳酸盐岩广泛沉积,而GM井区的灯四气藏是主要的产能贡献区域,且地貌非常复杂,这些因素导致了该区域内储层的储集空间复杂,储层的非均质性很强,而且储层品质和发育位置之间存在很大的差异。为了更好地理解这些储层的差异,以便进行储层改造和优化开发政策,急需开展灯影组碳酸盐岩的三维地质建模研究。经过对构造建模、属性建模和天然裂缝建模方法的优化,建立了一个全面的三维地质模型。建模结果对不同井之间的储层预测具有高度可信度,并与研究区的实际地质情况相符。

关键词： GM井区储集空间构造建模属性建模裂缝建模

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陕北子洲县“7·26”特大暴雨引发的小流域土壤侵蚀调查

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水土保持通报 2017年第4期37卷 338-344,I0003,I0004页

作者：王楠陈一先白雷超王灏霖焦菊英中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室陕西杨凌712100 中国科学院大学北京100000 西北农林科技大学水土保持研究所陕西杨凌712100

[目的]2017年7月25日20时到26日8时陕北榆林地区突降了一场特大暴雨,造成了严重的洪水灾害与经济损失。通过考察该次暴雨造成的土壤侵蚀危害,旨在为今后该区水土流失治理及暴雨灾害的防御提供依据。[方法]于2017年8月2—6日赴暴雨受灾... 详细信息

[目的]2017年7月25日20时到26日8时陕北榆林地区突降了一场特大暴雨,造成了严重的洪水灾害与经济损失。通过考察该次暴雨造成的土壤侵蚀危害,旨在为今后该区水土流失治理及暴雨灾害的防御提供依据。[方法]于2017年8月2—6日赴暴雨受灾区子洲县,选取了清水沟、马家沟、蛇家沟3个典型小流域作为重点调查区域,对该次暴雨下流域内坡耕地、退耕林草地、梯田、填沟造地、淤地坝、道路等的土壤侵蚀特征进行了调查与分析。[结果]在"7·26"特大暴雨洪水下,坡耕地细沟发育明显,甚至产生小切沟;而2000年退耕的林地和自然恢复草地以面蚀为主,无明显细沟产生;新修梯田连接两阶田面的道路及承接路面来水的田面冲毁严重,田埂部分区段被冲开,田坎发生塌落;在削坡填沟造地区域,不仅农作物和坝体遭到严重破坏,而且残蚀了田旁新修道路,切割裸露沟壁多处发生土体塌落;淤地坝或轻或重都存在损毁与隐患,但在该次暴雨中滞洪拦沙作用明显。同时,在调查中发现该区陡坡耕种现象依然存在,小流域蓄排水系统缺乏,部分水土保持工程管理与维护不到位,经济发展水平低,农民水土保持意识淡薄。[结论]"7·26"特大暴雨洪水造成的土壤侵蚀依然很严重,而退耕林草地的土壤侵蚀轻微,证明水土保持工作在该区依然十分重要。在生态环境脆弱的陕北黄土高原地区,应该继续加强环境保护措施,加大水土保持治理力度,特别是陡坡退耕。同时,专业设计并实施小流域蓄水、引水、排水网络系统十分必要。

关键词： “7·26”特大暴雨洪水土壤侵蚀坡耕地退耕地填沟造地榆林地区

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数字孪生技术及其在医疗领域的应用

中国数字医学 2023年第8期18卷 56-61页

作者：李哲青陈一贤周邮李熙莹姚麟中山大学附属第六医院广州510655 中山大学广州510655

数字孪生是具有数据连接的特定目标实体的数字化表达,该数据连接可以保证物理系统和虚拟系统之间以适当的速率和精度进行同步。因可进行全要素和全流程数据驱动,其在工业和制造业领域有着广泛和成熟的应用。随着医疗数据采集技术的提高... 详细信息

数字孪生是具有数据连接的特定目标实体的数字化表达,该数据连接可以保证物理系统和虚拟系统之间以适当的速率和精度进行同步。因可进行全要素和全流程数据驱动,其在工业和制造业领域有着广泛和成熟的应用。随着医疗数据采集技术的提高及医疗大数据的完善,数字孪生技术越来越多地应用于医疗健康领域。本研究主要对数字孪生技术及应用相关的文献进行分析,以医疗健康领域的不同应用场景为切入点,介绍数字孪生在医院运营管理、空间及设备管理、医疗及健康管理方面的应用现状,并对现有案例进行分析。

关键词：数字孪生医疗大数据建模