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Comparative pyrolysis kinetics of heavy oil and its SARA fractions using distributed activation energy model

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Petroleum Science 2023年第5期20卷 3231-3239页

作者： Qing-An Xiong Yu-Ming Zhang pei qiao Guo-Tong Li Jia-Zhou Li Wei Zhang College of Mechanical and Transportation Engineering China University of PetroleumBeijing102249China

The pyrolysis behaviors of Qingdao vacuum residue(QD-VR)and its SARA(saturates,aromatics,reins,and asphaltenes)fractions were evaluated by thermo-gravimetric with mass spectrometer(TG-MS).The pyrolysis kinetics were determined by Friedman,one-parallel and four-parallel distributed activation energy model(DAEM),*** results indicated that the pyrolysis behavior of QD-VR was similar to that of *** saturates,the release of H_(2),CH_(4),CO,and CO_(2) occurred in 80-400℃,while the temperature range for QD-VR and other fractions is 200-800℃.The average activation energy(Ea)via Friedman method was 179.72 kJ/mol and increased with the conversion ***-parallel Gaussian DAEM was more suitable to describe the pyrolysis process of the single SARA fractions,while four-parallel Gaussian DAEM was more suitable to describe the pyrolysis process of heavy ***,comparing the weighted E_(a) from one-parallel(227.64 kJ/mol)and four-parallel Gaussian DAEM(204.63 kJ/mol),the results suggested that during pyrolysis process of heavy oil,there was an interaction between the SARA fractions,which could reduce the E_(a) of heavy oil ***,during heavy oil pyrolysis,resins and asphaltenes could increase the E_(a) of saturates and aromatics,while saturates and aromatics could decrease the E_(a) of resins and asphaltenes.

关键词： Heavy oil Pyrolysis kinetics SARA fractions DAEM

基于云群的高维差分进化算法及其在网络安全态势预测上的应用

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吉林大学学报（工学版） 2016年第2期46卷 568-577页

作者：胡冠宇乔佩利哈尔滨理工大学计算机科学与技术学院哈尔滨150080

提出了一种基于云群的高维差分进化算法(CPDE),并将其应用在网络安全态势预测领域。该算法所提出的云群和分布链概念增加了种群的多样性。算法中的入侵算子将获胜个体的分布植入给其他个体,使得在进化的过程中,个体的形态呈现多样性。... 详细信息

提出了一种基于云群的高维差分进化算法(CPDE),并将其应用在网络安全态势预测领域。该算法所提出的云群和分布链概念增加了种群的多样性。算法中的入侵算子将获胜个体的分布植入给其他个体,使得在进化的过程中,个体的形态呈现多样性。协作算子在个体之间引入了合作机制并执行差分操作。局部搜索算子增加了算法的搜索精度。实验结果显示CPDE是一个有效的高维进化算法,它在优化网络安全态势预测模型中具有一定的优势。

关键词：计算机应用技术差分进化算法云模型云群分布链网络安全态势预测

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混沌协方差矩阵自适应进化策略优化算法

吉林大学学报（工学版） 2017年第3期47卷 937-943页

作者：胡冠宇乔佩利哈尔滨理工大学计算机科学与技术学院哈尔滨150080

为了改进进化策略算法的性能,提出了一种混沌协方差矩阵自适应进化策略(ChaosCMA-ES)算法,该算法在协方差矩阵自适应进化策略(CMA-ES)算法的基础上引入了混沌算子,并利用其更新种群中心的位置,使得种群具备良好的全局搜索能力。试验结... 详细信息

为了改进进化策略算法的性能,提出了一种混沌协方差矩阵自适应进化策略(ChaosCMA-ES)算法,该算法在协方差矩阵自适应进化策略(CMA-ES)算法的基础上引入了混沌算子,并利用其更新种群中心的位置,使得种群具备良好的全局搜索能力。试验结果表明,本文算法对复杂多峰函数的寻优效果好于其他几种算法。最后,将本文算法用于优化网络安全态势的预测模型,预测结果的精度高于其他方法。

关键词：人工智能优化算法协方差矩阵自适应进化策略混沌优化网络安全态势预测

Integration of the metabolome and transcriptome reveals the metabolites and genes related to nutritional and medicinal value in Coriandrum sativum

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Journal of Integrative Agriculture 2021年第7期20卷 1807-1818页

作者： WU Tong FENG Shu-yan YANG Qi-hang Preetida J BHETARIYA GONG Ke CUI Chun-lin SONG Jie PING Xiao-rui pei qiao-ying YU Tong SONG Xiao-ming College of Life Sciences North China University of Science and TechnologyTangshan 063210P.R.China Department of Biostatistics Harvard School of Public HealthBostonMA 02115USA Food Science and Technology Department University of Nebraska-LincolnLincolnNE 68526USA Center for Informational Biology School of Life Science and TechnologyUniversity of Electronic Science and Technology of ChinaChengdu 610054P.R.China

Coriandrum sativum(Coriander) or Chinese parsley is a culinary herb with multiple medicinal effects, which is widely used in cooking and traditional medicine. It is enriched with essential oils and anti-oxidant compounds with unknown significance. To explore the untapped reservoir of Coriander, we studied the transcriptome and metabolic profiles from three developmental stages. Here, we identified 10 tyrosine metabolic pathway-related genes(TMPRGs), six porphyrins and chlorophyll metabolic pathway-related genes(PCMPRGs), and five Vitamin E metabolic pathway-related genes(VEMPRGs). These genes were associated with the early development of Coriander. Our analysis suggests that these pathways are involved in the production of critical phenolic metabolites. Furthermore, we constructed the interaction network between these pathway-related genes and transcription factors(TFs), which supported the regulatory pathways for phenolic metabolites. Interestingly, we identified several nutritional or medicinally relevant metabolites, including 59 phenols, two polyamines, 12 alkaloids, and one terpenoid. The higher concentrations of metabolites were from caffeic acid, agmatine, and its derivatives. We found higher levels of caffeic acid and agmatine at 30 days compared to 60 or 90 days. This study provides evidence to stimulate further investigation of the role of these metabolites in medicinal and nutritional research.

关键词： metabolomics transcriptome regulatory network phenolic compounds Coriander

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模糊需求的易变质性产品生产批量问题研究

哈尔滨工业大学学报 2009年第3期41卷 221-223页

作者：乔佩利哈尔滨理工大学计算机科学与技术学院哈尔滨150080

针对市场需求不确定情况下的易变质性产品生产计划问题,用三角模糊数表示需求和产品变质率,建立使得平均净利润最大的模糊生产批量模型.用符号距离的方法进行解模糊并优化求解,得到满足条件的最优生产批量;用置信区间估计方法估算模糊... 详细信息

针对市场需求不确定情况下的易变质性产品生产计划问题,用三角模糊数表示需求和产品变质率,建立使得平均净利润最大的模糊生产批量模型.用符号距离的方法进行解模糊并优化求解,得到满足条件的最优生产批量;用置信区间估计方法估算模糊参数的波动范围.最后给出算例证明了模型和算法的有效性.

关键词：生产批量问题不确定需求易变质性产品三角模糊数

Blockade of complement activation in bullous pemphigoid by using recombinant CD55-CD46 fusion protein

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Chinese Medical Journal 2021年第7期134卷 864-866页

作者： pei qiao Yi-Xin Luo Da-Long Zhi Gang Wang Er-Le Dang Department of Dermatology Xijing HospitalFourth Military Medical UniversityXi'anShaanxi 710032China

To the Editor:Bullous pemphigoid(BP)is an autoimmune blistering disease that is caused by autoantibodies and is associated with complement activation.[1]Autoantibody-mediated complement activation is involved in BP ***-regulatory proteins(CRPs)including CD35,CD46,CD55,and CD59 comprise an important class of regulatory proteins in the complement system that control the enzyme cascades,assembly of the membrane-attack complex,and complement system homeostasis.[2]Classically,both CD55 and CD46 negatively regulate complement system activation by inhibiting the production of new C3 and C5 convertases and accelerating the degradation of those already formed,thereby protecting cells from complement activation-induced damage.

关键词： CD55 CD46 damage

Endovascular treatment of pseudo-aneurysm occurring after embolization of traumatic carotid cavernous fistula with detachable balloons

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Chinese Medical Journal 2008年第15期121卷 1487-1491页

作者： FANG Chun LI Ming-hua TAN Hua-qiao ZHANG pei-lei ZHOU Bin Department of Radiology Sixth People's Hospital Shanghai Jiao Tong University Shanghai 200233 China

Traumatic carotid-cavemous fistula （CCF） is an abnormal passageway between the intracavemous carotid artery and the cavernous sinus after a head injury. Most CCFs have direct high flow. Clinical presentations primarily depend on the pressure inside the cavernous sinus and on the direction of the venous drainage. The ideal goal for the treatment of direct CCF is the obliteration of the fistula while preserving the internal carotid artery （ICA）. Transarterial embolization of direct CCF with detachable balloons has been proven to be the best option for an initial treatment, although transarterial embolization by detachable balloons is frequently associated with pseudo-aneurysm formation. Many treatment options such as coiling, stent-assisted coiling, and covered stent have been proposed to treat pseudo-aneurysm. However, the best management for a pseudo-aneurysm occurring after an embolization of a CCF with detachable balloons remains unknown. In this article, we will report our successful attempt in treating the said pseudo-aneurysm. We initially dealt with a pseudo-aneurysm occurring after an embolization of a CCF with stent-assisted coiling; then, the pseudoaneurysm recanalized, and eventually a covered stent was placed for the recanalized pseudoaneurysm.

关键词： carotid-cavernousfistula pseudo-aneurysm covered stent endovascular treatment

Diagnostic value of Epstein-Barr virus capsid antigen-IgA in nasopharyngeal carcinoma： a meta-analysis

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Chinese Medical Journal 2010年第9期123卷 1201-1205页

作者： LI Shan DENG Yan LI Xi CHEN qiao-pei LIAO Xiang-cheng QIN Xue Department of Clinical Laboratory First Affiliated Hospital of Guangxi Medical UniversityNanningGuangxi 530021China Graduate School of Guangxi Medical University NanningGuangxi 530021China

Background Non-invasive nasopharyngeal carcinoma （NPC） screening usually involves serological testing for the presence of IgA antibodies to Epstein-Barr virus （EBV） capsid antigen （VCA）. The present meta-analysis determined the accuracy of VCA-lgA in the diagnosis of *** A systematic review of studies was conducted and data on the accuracy of VCA-lgA concentrations in the diagnosis of NPC were pooled using random effects models. Receiver operating characteristic curves were used to summarize the overall test performance. Results Twenty studies met the inclusion criteria for the meta-analysis. The summary estimates for VCA-lgA in the diagnosis of NPC were： sensitivity 0.91 （95% confidence interval （Cl）： 0.90-0.92）, specificity 0.92 （95% Cl： 0.92-0.93）, positive likelihood ratio 31.65 （95% Cl： 10.99-91.15）, negative likelihood ratio 0.10 （95% Cl： 0.07-0.13） and diagnostic odds ratio 414.59 （95% Cl： 174.96-982.42）. The area under the summary receiver operating characteristic curves was *** The sensitivity and the specificity of serum VCA-lgA are very high, suggesting that the presence of VCA-lgA in peripheral blood is a valuable predictor for NPC.

关键词： Epstein-Barr virus nasopharyngeal carcinoma virus capsid antigen diagnosis meta-analysis

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基于多源协同感知的目标追踪优化模型

北京理工大学学报 2017年第11期37卷 1137-1143页

作者：赵中楠王健乔佩利哈尔滨理工大学计算机科学与技术学院黑龙江哈尔滨150080

面向物联网及多媒体传输等应用的中高速无线传感器网络,如何在有限的能量下提供较高的传输速率,以满足各种应用的需求成为亟待解决的关键问题.鉴于此本文提出了一种基于多源协同感知的目标追踪优化模型.该模型通过在追踪目标过程中对各... 详细信息

面向物联网及多媒体传输等应用的中高速无线传感器网络,如何在有限的能量下提供较高的传输速率,以满足各种应用的需求成为亟待解决的关键问题.鉴于此本文提出了一种基于多源协同感知的目标追踪优化模型.该模型通过在追踪目标过程中对各节点的多源信息进行协同感知,针对能量阈值以及吞吐量进行多指标综合考虑,并采用优化算法进行多目标优化,实现了目标追踪过程中有效能耗下的高性能传输.经过与相关算法进行实验比对,本文提出的模型在多网络性能指标下均能够表现较好的效果,证明了模型的有效性.

关键词：多源协同感知无线传感器网络目标追踪多目标优化模型