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The Design and Implementation of Fire Smoke Detection System Based on FPGA

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The Design and Implementation of Fire Smoke Detection System...

SIMULTANEOUS DETERMINATION OF EPHEDRINE AND ITS ANALOGUES IN URINE BY CAPILLARY GAS CHROMATOGRAPHY

第24届中国控制与决策会议

作者： Li Jinghong, zou Xiaohui, wang Lu College of Information Science and Engineering Northeastern University, Shenyang 110819,China

This paper uses modular method to design smoke detection system. On the basis of the requirement analysis, the paper designs and implements all the modules, including image capture module, SDRAM data buffer module, image display module and smoke detection module. Among them the smoke detection module is the core of the system, which decides the performance of the system. Using a synergistic manner through software and hardware, the smoke detection module is realized. First of all, using the algorithm of frame difference, erosion and dilation, it realizes suspected smoke area extraction with hardware description language. This method ensures to process real-time sequential image. And then we detect the suspected smoke areas with smoke dynamic features including smoke area rising feature and smoke regional stability feature. Finally, the paper builds smoke detect module using SOPC Builder, which reads image data captured by CMOS image sensor monitors into SRAM. Based on smoke detect hardware module this paper realizes smoke background fuzzy characteristics based on the 2d discrete wavelet transform in Nios II IDE environment. After a period of debugging and running, the system realizes real-time smoke detection.

关键词： Smoke Detection Smoke Dynamic Features Frame Difference 2-D Wavelet Transform FPGA

来源： cnki会议评论

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Chinese Chemical Letters 1990年第2期1卷 175-178页

作者： Lin LI Jian Fang CUI Kai Rong CUI Yi ZHOU Mu zou wang Tong Hui ZHOU (Institute of Materia Medica,Chinese Academy of Medical Sciences,Beijing 100050)

A method is developed for the simultaneous determination of ephedrine,pseudoephedrine, norephedrine, norpseudoephedrine and methylephedrine in urine on a capillary column using nitrogen-phosphorus *** is used as the i... 详细信息

关键词： GAS IV SIMULTANEOUS DETERMINATION OF EPHEDRINE AND ITS ANALOGUES IN URINE BY CAPILLARY GAS CHROMATOGRAPHY ITS

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低油价环境下国际油公司资产优化特点及启示

中国矿业 2018年第6期27卷 44-47页

作者：邹倩王克铭中国石油勘探开发研究院北京100083

近年来,全球油气行业的颠覆性改变对各国石油公司的发展和能源战略的变革产生了深刻的影响。本文从低油价环境下国际油公司的应对策略和主要做法入手,分析比较四家大型国际油公司的资产优化经验,对资产优化侧重点的差异、战略导向对资... 详细信息

近年来,全球油气行业的颠覆性改变对各国石油公司的发展和能源战略的变革产生了深刻的影响。本文从低油价环境下国际油公司的应对策略和主要做法入手,分析比较四家大型国际油公司的资产优化经验,对资产优化侧重点的差异、战略导向对资产优化方向的影响以及不同资产性质下的优化策略进行了归纳分析。在此基础上对中国石油企业在低油价下如何实现效益发展给出了若干策略。

关键词：低油价国际石油公司资产优化经营决策

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中国式现代化视域下的区域协调发展

北京行政学院学报 2023年第3期 1-10页

作者：孙久文王邹蒋治中国人民大学应用经济学院北京100872

进入全面建设社会主义现代化国家新阶段,中国式现代化为深入实施区域协调发展战略注入了新的时代内涵,要求协调好人口集聚与地区差异、培育经济增长极与追求空间正义、经济发展与文化传承、总量增长与结构转型、发扬本地优势与融入全球... 详细信息

进入全面建设社会主义现代化国家新阶段,中国式现代化为深入实施区域协调发展战略注入了新的时代内涵,要求协调好人口集聚与地区差异、培育经济增长极与追求空间正义、经济发展与文化传承、总量增长与结构转型、发扬本地优势与融入全球市场这五对矛盾关系。瞄准第二个百年奋斗目标,需要重点明晰区域协调发展的三个重大问题,即在中国式现代化视域下以高质量发展确定区域协调发展的总体思路、以共同富裕作为区域协调发展的价值目标、以新发展格局构建区域协调发展的空间动能,最终可统一归结为以人民为中心的根本立场。为了更好地以区域协调发展助推中国式现代化,亟需顺应经济规律,引导人口空间再布局,加快建设现代化经济体系,增进基本公共服务和公共产品的普惠性,推动绿色低碳成为主流发展方式。

关键词：中国式现代化区域协调发展高质量发展共同富裕新发展格局

维普期刊数据库博看期刊

多项式Liénard方程的中心条件(英文)

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四川大学学报（自然科学版） 2008年第5期45卷 1051-1056页

作者：邹兰陈兴武四川大学数学学院成都610064

作者研究了多项式Linard方程具有非退化中心的条件,运用消元法给出了计算此条件的一个算法.

关键词： Liénard方程非退化中心伪除

Exploring the interaction between the gut microbiota and cyclic adenosine monophosphate-protein kinase A signaling pathway:a potential therapeutic approach for neurodegenerative diseases

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Neural Regeneration Research 2025年第11期20卷 3095-3112页

作者： Fengcheng Deng Dan Yang Lingxi Qing Yifei Chen Jilian zou Meiling Jia Qian wang Runda Jiang Lihua Huang College of Pharmacy Chengdu University of Traditional Chinese MedicineChengduSichuan ProvinceChina State Key Laboratory of Southwestern Chinese Medicine Resources Chengdu University of Traditional Chinese MedicineChengduSichuan ProvinceChina

The interaction between the gut microbiota and cyclic adenosine monophosphate(cAMP)-protein kinase A(PKA)signaling pathway in the host's central nervous system plays a crucial role in neurological diseases and enhances communication along the gut–brain *** gut microbiota influences the cAMP-PKA signaling pathway through its metabolites,which activates the vagus nerve and modulates the immune and neuroendocrine ***,alterations in the cAMP-PKA signaling pathway can affect the composition of the gut microbiota,creating a dynamic network of microbial-host *** reciprocal regulation affects neurodevelopment,neurotransmitter control,and behavioral traits,thus playing a role in the modulation of neurological *** coordinated activity of the gut microbiota and the cAMP-PKA signaling pathway regulates processes such as amyloid-β protein aggregation,mitochondrial dysfunction,abnormal energy metabolism,microglial activation,oxidative stress,and neurotransmitter release,which collectively influence the onset and progression of neurological *** study explores the complex interplay between the gut microbiota and cAMP-PKA signaling pathway,along with its implications for potential therapeutic interventions in neurological *** pharmacological research has shown that restoring the balance between gut flora and cAMP-PKA signaling pathway may improve outcomes in neurodegenerative diseases and emotional *** can be achieved through various methods such as dietary modifications,probiotic supplements,Chinese herbal extracts,combinations of Chinese herbs,and innovative dosage *** findings suggest that regulating the gut microbiota and cAMP-PKA signaling pathway may provide valuable evidence for developing novel therapeutic approaches for neurodegenerative diseases.

关键词： cyclic adenosine monophosphate emotional disorders gut microbiota neurodegenerative diseases neurological diseases protein kinase A reciprocal regulation signaling pathway strategy therapies

Evaluation of Pathway of Nitrogen Loss in Winter Wheat and Summer Maize Rotation System

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Agricultural Sciences in China 2002年第11期1卷 1224-1231页

作者： JU Xiao-tang, LIU Xue-jun, zou Guo-yuan, wang Zhao-hui and ZHANG Fu-suo(Department of Plant Nutrition , China Agricultural University , Beijing 100094 ,P. R. China) Department of Plant Nutrition China Agricultural University Beijing 100094P.R.China

The nitrogen loss pathway in winter wheat and summer maize rotation system was studied based on field experimental data. The results showed that nitrogen recovery rate was significantly decreased with nitrogen fertilization rate increased, while residual rate and losses rate had an increasing trend. Accumulated ammonia volatilization loss in winter wheat and summer maize rotation was 12. 8(N0), 22.0(N120), 33. 0(N240) and 64. 5 kg N ha-1 (N360) respectively and rate of ammonia volatilization loss was 3.8, 4.2 and 7.2% respectively while urea was mixed with 0 -10 cm soil or spread before irrigation. Denitrification loss with acetylene-soil core incubation method in winter wheat was lower than 1 kg N ha-1 and rate of denitrification loss was 0. 21 - 0. 26% or trace. Denitrification loss in summer maize was 1 - 14 kg N ha-1 and rate of denitrification loss was 1-5%. The total gaseous loss in winter wheat and summer maize rotation system was less than 10%, and the main nitrogen fertilizer loss way was leaching below 0 - 100 cm soil profile and accumulated in deeper soil.

关键词： Winter wheat Summer maize Ammonia volatilization Denitrif ication Nitrate leaching

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基于粒子群优化的频域多信道干扰对齐算法

北京邮电大学学报 2016年第3期39卷 22-26页

作者：邹卫霞王多万杜光龙北京邮电大学泛网无线通信教育部重点实验室北京100876 东南大学毫米波国家重点实验室南京210096

针对频域干扰对齐系统解空间的多峰值特性,提出了一种基于粒子群优化,以系统网络和速率为优化目标函数的干扰对齐全局搜索算法.该算法通过对速度向量在位置向量的法平面上做投影以加强全局搜索能力,并在粒子群标准位置更新的基础上增加... 详细信息

针对频域干扰对齐系统解空间的多峰值特性,提出了一种基于粒子群优化,以系统网络和速率为优化目标函数的干扰对齐全局搜索算法.该算法通过对速度向量在位置向量的法平面上做投影以加强全局搜索能力,并在粒子群标准位置更新的基础上增加沿目标函数梯度方向的学习搜索来提高算法收敛速度和趋向全局最优值的能力.数值仿真结果表明,该算法可以获得比现有算法更好的网络和速率性能.

关键词：干扰对齐频域多信道自由度粒子群优化梯度网络和速率

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稀疏度未知压缩信号快速重构方案

控制工程 2018年第4期25卷 663-667页

作者：邹汪平方元康邹海池州职业技术学院信息技术系安徽池州247000 池州学院数学与计算机科学学院安徽池州247000 安徽大学计算机科学与技术学院合肥230000

为了有效解决稀疏度未知的压缩信号快速重构问题，提出了一种适应范围较广、效率突出的信号重构方案。在该方案中，压缩信号的上下界按照等距性质获得，并将最接近其中值的整数作为信号稀疏度的估计值：通过减少迭代时观测向量在支撑集... 详细信息

为了有效解决稀疏度未知的压缩信号快速重构问题，提出了一种适应范围较广、效率突出的信号重构方案。在该方案中，压缩信号的上下界按照等距性质获得，并将最接近其中值的整数作为信号稀疏度的估计值：通过减少迭代时观测向量在支撑集上的投影次数，降低该方案的运算复杂度；给出了能够反映整个信号重构概率的评估体系，并以此体系验证分析该方案的有效性。通过实验表明，该方案有效实现了稀疏度未知信号地快速重构，同时其重构的成功概率也高于现有的回溯类重构方案。

关键词：稀疏度快速重构估计值评估体系