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A Low-Cost Dual Energy CT System with Sparse Data

Tsinghua Science and Technology 2014年第2期19卷 184-194页

作者： Yuanyuan Liu jianping Cheng Li Zhang Yuxiang xing Zhiqiang Chen Peng Zheng Nuclear and Radiation Safety Center Ministry of Environmental Protection of China Department of Engineering Physics Tsinghua University

Dual Energy CT （DECT） has recently gained significant research interest owing to its ability to discriminate materials, and hence is widely applied in the field of nuclear safety and security inspection. With the current technological developments, DECT can be typically realized by using two sets of detectors, one for detecting lower energy X-rays and another for detecting higher energy X-rays. This makes the imaging system expensive, limiting its practical implementation. In 2009, our group performed a preliminary study on a new low-cost system design, using only a complete data set for lower energy level and a sparse data set for the higher energy level. This could significantly reduce the cost of the system, as it contained much smaller number of detector elements. Reconstruction method is the key point of this system. In the present study, we further validated this system and proposed a robust method, involving three main steps：（1） estimation of the missing data iteratively with TV constraints; （2） use the reconstruction from the complete lower energy CT data set to form an initial estimation of the projection data for higher energy level; （3） use ordered views to accelerate the computation. Numerical simulations with different number of detector elements have also been examined. The results obtained in this study demonstrate that 1 ＋ 14% CT data is sufficient enough to provide a rather good reconstruction of both the effective atomic number and electron density distributions of the scanned object, instead of 2 sets CT data.

关键词： X-ray imaging dual energy CT system sparse samples reconstruction material discriminationAR^TV

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基于煤矿智能变电站防越级故障区段识别矩阵算法研究

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山东电力技术 2017年第9期44卷 31-34,38页

作者：邢建平杨光孙瑞玲宋云海张文波国网山东省电力公司潍坊供电公司山东潍坊261021

随着智能变电站在煤炭系统中的试验推广,其所具有的网络化数据共享特征,给解决越级跳闸问题提供了新方法。在确定煤矿智能变电站结构、系统对时、GOOSE通信技术原理及防越级跳闸流程的基础上,重点研究用于故障线路识别的故障区段识别矩... 详细信息

随着智能变电站在煤炭系统中的试验推广,其所具有的网络化数据共享特征,给解决越级跳闸问题提供了新方法。在确定煤矿智能变电站结构、系统对时、GOOSE通信技术原理及防越级跳闸流程的基础上,重点研究用于故障线路识别的故障区段识别矩阵算法,实现了故障区段的定位与隔离,对提高煤矿供电系统的稳定性有重要意义。

关键词：煤矿电网防越级智能变电站矩阵算法

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基于三维空间点的手势控制策略与建模

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太赫兹科学与电子信息学报 2017年第2期15卷 285-291页

作者：王康邢建平孟宪鹏孟宪昊王子栋赵庆涛山东大学信息科学与工程学院山东济南250100

针对目前大多数控制方式都是局限于特定的控制场景,控制功能单一,不具备普适性、便捷性,且成功率与准确率较低的问题,提出了2类基本的指令算法模型:连续型指令、布尔型指令算法模型。将各种不同场景下一个复杂的控制任务,通过功能分解... 详细信息

针对目前大多数控制方式都是局限于特定的控制场景,控制功能单一,不具备普适性、便捷性,且成功率与准确率较低的问题,提出了2类基本的指令算法模型:连续型指令、布尔型指令算法模型。将各种不同场景下一个复杂的控制任务,通过功能分解、指令提取、模型匹配3个步骤分解为上述2类指令算法模型。模型以手部三维坐标点和手部姿态作为输入条件,实现状态跳转和指令输出。经过实际工作和对比得到,提出的手势控制策略可在多种情况下实现,且提出的算法具有较高的成功率、准确率和较好的鲁棒性、便捷性、普适性。

关键词：人机交互体感手势控制策略普适性

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MAQMC:Multi-Agent Deep Q-Network for Multi-Zone Residential HVAC Control

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Computer Modeling in Engineering & Sciences 2023年第9期136卷 2759-2785页

作者： Zhengkai Ding Qiming Fu jianping Chen You Lu Hongjie Wu Nengwei Fang Bin xing School of Electronic and Information Engineering Suzhou University of Science and TechnologySuzhou215009China Jiangsu Province Key Laboratory of Intelligent Building Energy Efficiency Suzhou University of Science and TechnologySuzhou215009China School of Architecture and Urban Planning Suzhou University of Science and TechnologySuzhou215009China Chongqing Industrial Big Data Innovation Center Co. Ltd.Chongqing400707China

The optimization of multi-zone residential heating,ventilation,and air conditioning(HVAC)control is not an easy task due to its complex dynamic thermal model and the uncertainty of occupant-driven cooling *** reinforcement learning(DRL)methods have recently been proposed to address the HVAC control ***,the application of single-agent DRL formulti-zone residential HVAC controlmay lead to non-convergence or slow *** this paper,we propose MAQMC(Multi-Agent deep Q-network for multi-zone residential HVAC Control)to address this challenge with the goal of minimizing energy consumption while maintaining occupants’thermal *** is divided into MAQMC2(MAQMC with two agents:one agent controls the temperature of each zone,and the other agent controls the humidity of each zone)and MAQMC3(MAQMC with three agents:three agents control the temperature and humidity of three zones,respectively).The experimental results showthatMAQMC3 can reduce energy consumption by 6.27%andMAQMC2 by 3.73%compared with the fixed point;compared with the rule-based,MAQMC3 andMAQMC2 respectively can reduce 61.89%and 59.07%comfort *** addition,experiments with different regional weather data demonstrate that the well-trained MAQMC RL agents have the robustness and adaptability to unknown environments.

关键词： Deep reinforcement learning multi-zone residential HVAC multi-agent energy conservation comfort

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海南琼中山栏稻产业发展现状与对策

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热带农业科学 2024年第1期44卷 33-38页

作者：易伟鹏袁潜华唐清杰邢建平冯尔勇曹林奎海南省农业生态与资源保护总站海南海口571100 海南省农业农村厅GEF项目工作领导小组办公室海南海口571100 海南大学热带作物学院海南海口570228 海南省农业科学院粮食作物研究所海南海口571100 海南省琼中黎族苗族自治县农业农村局海南琼中572923 上海交通大学农业与生物学院上海200240

琼中黎族苗族自治县是海南岛山栏稻种植相对集中和典型的地区,科学保护和合理利用山栏稻种质资源,既是保护区域生物多样性、维持地区生态系统平衡的要求,也是传承海南地区农耕文化、保护独特农业文化遗产的需要。文章全面分析琼中山栏... 详细信息

琼中黎族苗族自治县是海南岛山栏稻种植相对集中和典型的地区,科学保护和合理利用山栏稻种质资源,既是保护区域生物多样性、维持地区生态系统平衡的要求,也是传承海南地区农耕文化、保护独特农业文化遗产的需要。文章全面分析琼中山栏稻产业发展现状与问题、市场前景并提出对策建议,旨在为加强琼中山栏稻种质资源保护与开发利用,提升其产业化发展水平,促进山栏稻产业的可持续发展提供参考。

关键词：琼中山栏稻产业发展现状对策建议

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New β-delayed Proton Precursor ^(135)Gd

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IMP & HIRFL Annual Report 1996年第1期 39-39页

作者： Xu Shuwei Xie Yuanxiang Li Zhankui Ma Ruichang Ge Yuanxiu Wang Chunfang Guo Bing xing jianping Huang Wenxue Zhang Tianmei Liu Zhong Zhu Shaofei Jin Genming and Luo Yixiao

Ｎｅｗβ－ｄｅｌａｙｅｄＰｒｏｔｏｎＰｒｅｃｕｒｓｏｒ^（１３５）Ｇｄ￥ＸｕＳｈｕｗｅｉ；ＸｉｅＹｕａｎｘｉａｎｇ；ＬｉＺｈａｎｋｕｉ；ＭａＲｕｉｃｈａｎｇ；ＧｅＹｕａｎｘｉｕ；ＷａｎｇＣｈｕｎｆａｎｇ；ＧｕｏＢｉｎ...

Ｎｅｗβ－ｄｅｌａｙｅｄＰｒｏｔｏｎＰｒｅｃｕｒｓｏｒ^（１３５）Ｇｄ￥ＸｕＳｈｕｗｅｉ；ＸｉｅＹｕａｎｘｉａｎｇ；ＬｉＺｈａｎｋｕｉ；ＭａＲｕｉｃｈａｎｇ；ＧｅＹｕａｎｘｉｕ；ＷａｎｇＣｈｕｎｆａｎｇ；ＧｕｏＢｉｎｇ；ＸｉｎｇＪｉａｎｐｉｎｇ；Ｈｕ?..

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Lead?Free Halide Double Perovskite Materials: A New Superstar Toward Green and Stable Optoelectronic Applications

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Nano-Micro Letters 2019年第1期11卷 264-281页

作者： Liang Chu Waqar Ahmad Wei Liu Jian Yang Rui Zhang Yan Sun jianping Yang xing'ao Li New Energy Technology Engineering Laboratory of Jiangsu Province & School of Science Nanjing University of Posts and Telecommunications (NJUPT) Key Laboratory for Organic Electronics & Information Displays & Institute of Advanced Materials Jiangsu National Synergistic Innovation Center for Advanced Materials School of Materials Science and Engineering Nanjing University of Posts and Telecommunications (NJUPT) Wuhan National Laboratory for Optoelectronics (WNLO) Huazhong University of Science and Technology (HUST)

Lead-based halide perovskites have emerged as excellent semiconductors for a broad range of optoelectronic applications, such as photovoltaics, lighting, lasing and photon detection. However, toxicity of lead and poor stability still represent significant challenges. Fortunately, halide double perovskite materials with formula of A_2M(I)M(III)X_6 or A_2M(IV)X_6 could be potentially regarded as stable and green alternatives for optoelectronic applications, where two divalent lead ions are substituted by combining one monovalent and one trivalent ions, or one tetravalent ion. Here, the article provides an up-to-date review on the developments of halide double perovskite materials and their related optoelectronic applications including photodetectors, X-ray detectors, photocatalyst, light-emitting diodes and solar cells. The synthesized halide double perovskite materials exhibit exceptional stability, and a few possess superior optoelectronic properties. However, the number of synthesized halide double perovskites is limited, and more limited materials have been developed for optoelectronic applications to date. In addition, the band structures and carrier transport properties of the materials are still not desired, and the films still manifest low quality for photovoltaic applications. Therefore, we propose that continuing e orts are needed to develop more halide double perovskites, modulate the properties and grow high-quality films, with the aim of opening the wild practical applications.

关键词： Halide double perovskite Optoelectronic applications Efficiency Stability Toxicity

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Braincase Anatomy of the Basal Theropod Sinosaurus from the Early Jurassic of China

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Acta Geologica Sinica(English Edition) 2014年第6期88卷 1653-1664页

作者： xing Lida Ariana PAULINA-CARABAJAL Philip J.CURRIE XU xing ZHANG jianping WANG Tao Michael E.BURNS DONG Zhiming School of the Earth Sciences and Resources China University of Geosciences Museo Carmen Funes Consejo Nacional de Investigaciones Científicas y TecnológicasAv.Córdoba 55 (8318)Plaza Huincul Neuquén Argentina University of Alberta CW405 Biological Sciences BuildingEdmonton Alberta T6G 2E9 Canada Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Lufeng Land and Resources Bureau

The neuroanatomy of the mid-sized theropod Sinosaurus triassicus from the Lower Jurassic Lufeng Formation, Lufeng Basin in Yunnan Province, China was studied using X-ray computed tomography. The braincase is characterized by a large supraoccipital knob that is capped by a posterior projection of the parietal and two external foramina for the caudal middle cerebral vein, which is completely enclosed by the supraoccipital. The basicranium has well defined, short basipterygoid processes that project ventral to the basal tubera. The basisphenoid is expanded, projects posteroventrally, and is pierced by four pneumatic recesses. The endocranial morphology resembles that observed in other basal theropods—in particular some allosauroids—and has a strongly marked pontine flexure and a large dorsal expansion. The inner ear morphology is also similar to that observed in other basal theropods, with slender semicircular canals. The anterior semicircular canal is 20% larger than the posterior semicircular canal, and the angle formed between them is less than 90° when seen in dorsal view.

关键词： Neuroanatomy paleoneurology Dinosaur inner ear pneumaticity Early Jurassic Yunnan

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瑞舒伐他汀与阿托伐他汀联合二甲双胍对2型糖尿病患者血清PCSK9及相关生化指标影响的比较

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疑难病杂志 2021年第7期20卷 694-698页

作者：陈晓丽顾丽艳承霞邢建平张敏霞刘苏霞苏州大学附属张家港医院内分泌科 215600

目的比较瑞舒伐他汀与阿托伐他汀联合二甲双胍治疗对2型糖尿病(T2DM)患者血清前蛋白转化酶枯草溶菌素9(PCSK9)及相关生化指标的影响。方法选择2018年5月—2020年4月苏州大学附属张家港医院内分泌科诊治的T2DM患者94例为研究对象,采用随... 详细信息

目的比较瑞舒伐他汀与阿托伐他汀联合二甲双胍治疗对2型糖尿病(T2DM)患者血清前蛋白转化酶枯草溶菌素9(PCSK9)及相关生化指标的影响。方法选择2018年5月—2020年4月苏州大学附属张家港医院内分泌科诊治的T2DM患者94例为研究对象,采用随机数字表法分为观察组48例、对照组46例。对照组给予阿托伐他汀联合二甲双胍治疗,观察组给予瑞舒伐他汀联合二甲双胍治疗。治疗4个月后,比较2组临床疗效,治疗前后血清PCSK9、炎性因子、糖脂代谢等指标水平。结果治疗4个月后,观察组有效率95.83%,高于对照组的80.43%(χ^(2)=5.390,P<0.05)。观察组血清PCSK9、白介素-6(IL-6)、高敏C反应蛋白(hs-CRP)、肿瘤坏死因子-α(TNF-α)低于对照组(t/P=3.082/0.008,7.658/0.000,6.465/0.000,6.637/0.000)。观察组空腹血糖(FPG)、餐后2 h血糖(2 hPG)、胰岛素抵抗指数(HOMA-IR)、三酰甘油(TG)低于对照组(t/P=4.847/0.000,4.359/0.000,5.509/0.000,2.822/0.010)。结论相较阿托伐他汀,瑞舒伐他汀联合二甲双胍可降低T2DM患者血清PCSK9含量,有利于抑制T2DM患者炎性浸润程度,控制糖脂代谢水平,提高临床疗效。

关键词：糖尿病,2型瑞舒伐他汀阿托伐他汀前蛋白转化酶枯草溶菌素9 炎性因子糖脂代谢

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Regenerative Biomaterials 2023年第1期10卷 377-385页

作者： jianping Gao Zhenhu Guo Yang Zhang Yuying Liu Fangyu xing Junjie Wang Xi Luo Yingjun Kong Guifeng Zhang National Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical and Engineering University of Chinese Academy of SciencesBeijing 100049China

The content of type I collagen(COL-I)and type III collagen(COL-III)and the ratio between them not only affect the skin elasticity and mechanical strength,but also determine the fibril *** this research,we investigated the age-related changes in COL-I/COL-III ratio with their formed fibril *** experimental result was obtained from high performance liquid chromatography-mass spectrometer,hydroxyproline determination,picrosirius red staining and transmission electron microscopes(TEM),*** result indicated that the COL-I/COL-III ratio in mouse skin increased with *** the 0th to 9th week,the COL-I/COLIII ratio increased from 1.3:1 to 4.5:*** the 9th to the 18th week,it remained between 4.5:1 and 4.9:*** total content of COL-I and COL-III firstly increased and then decreased with *** TEM result showed that the fibril diameter increased with *** the 0th to 9th week,the average fibril diameter increased from 40 to 112 nm;From the 9th to 18th weeks,it increased from 112 to 140 *** the 9th *** fibril diameter showed obvious uneven ***,the COL-I/COLIII ratio was proportional to the fibril diameter,but inversely proportional to the uniformity of fibril diameter.

关键词： collagen skin ratio fibril diameter

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