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基于数学建模《概率论与数理统计》的教学探究

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办公自动化 2024年第14期29卷 35-37,41页

作者：叶香蕊马鞍山学院基础部马鞍山243100

《概率论与数理统计》是理工科及经管类相关专业的必修课,该课程主要研究自然界、人类社会及技术生产过程中随机现象的统计规律性,其理论与方法广泛用于工业、农业、军事和科学技术等。文章将数学建模融入概率论与数理统计的教学过程,... 详细信息

《概率论与数理统计》是理工科及经管类相关专业的必修课,该课程主要研究自然界、人类社会及技术生产过程中随机现象的统计规律性,其理论与方法广泛用于工业、农业、军事和科学技术等。文章将数学建模融入概率论与数理统计的教学过程,探究概率论与数理统计的教学技巧,同时,阐述这种教学模式对学生的创新思维和实践技能的深远影响。

关键词：数学建模概率论与数理统计教学技巧

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中药材干燥技术与装备研究现状

农业工程学报 2024年第2期40卷 1-28页

作者：王乐意李长河刘明政李康叶祥瑞王子文范林政王仁坤赵华洋坎杂张国华邬健康青岛理工大学机械与汽车工程学院青岛266520 内蒙古民族大学工学院通辽028042 石河子大学机械电气工程学院石河子832003 山东五康轩现代农林发展有限公司邹城273500

中药材在采收后需经过产地初加工处理,其中干燥是产地初加工的必要环节,并直接影响到中药材的品质。传统的自然干燥方式效率低,且药材干燥品质良莠不齐,严重制约中药产业的发展。因此,加强对中药材干燥技术与装备的研究尤为迫切。基于此... 详细信息

中药材在采收后需经过产地初加工处理,其中干燥是产地初加工的必要环节,并直接影响到中药材的品质。传统的自然干燥方式效率低,且药材干燥品质良莠不齐,严重制约中药产业的发展。因此,加强对中药材干燥技术与装备的研究尤为迫切。基于此,该研究综述了中药材干燥技术与装备的研究现状。首先,总结中药材的干燥脱水过程与理化性质变化规律,分析了药材自身特性与干燥条件对水分脱除速率与干燥品质的影响机制。其次,针对热风、热泵、红外、微波、真空与高压电场干燥技术,以干燥机理为基础,总结各类干燥技术的装备结构与工作原理,分析了干燥装备存在的干燥不均匀、能耗大、效率低等问题并探讨了相应改善方法。同时,研究了各类干燥技术在不同工艺条件下的干燥效果,分析了干燥温度、切片厚度、真空度等工艺参数对干燥效果的影响规律,探讨了预处理、阶段式变温变湿、间歇式干燥等赋能干燥效果的工艺手段,并综合干燥品质、干燥效率与干燥成本,得到了各类干燥技术的优缺点与适用范围。进一步地,分析了微波-真空、微波-热风与远红外-热泵三类联合干燥技术不同组合方式下的干燥机理,阐述了各类联合干燥装备的研发进展,探讨了联合干燥技术相较于单一干燥技术的优势以及装备和工艺存在的不足。最后,从提高中药材品质评价标准、完善干燥相关模型、加强干燥装备研发三方面对研究方向进行了展望,以期为中药材干燥技术研究与装备创新研发提供理论依据与技术支持。

关键词：中药材干燥机理装备效果工艺

混凝土搅拌站筒仓支撑钢结构安全检测评估研究

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低温建筑技术 2020年第1期42卷 76-80页

作者：叶祥瑞王柏生叶灵鹏浙江大学工程师学院杭州310058 浙江大学建筑工程学院杭州310058

根据杭州地区20多家混凝土搅拌站普遍存在整体倾斜、支撑缺失、构件锈蚀和外围护挡板设置不合理等问题,制定混凝土搅拌支撑钢结构现场调查与检测的内容与方法。在此基础上,通过有限元计算着重分析了整体倾斜对支撑钢结构安全性能的影响... 详细信息

根据杭州地区20多家混凝土搅拌站普遍存在整体倾斜、支撑缺失、构件锈蚀和外围护挡板设置不合理等问题,制定混凝土搅拌支撑钢结构现场调查与检测的内容与方法。在此基础上,通过有限元计算着重分析了整体倾斜对支撑钢结构安全性能的影响,最后给出了整体倾斜限值的建议。

关键词：混凝土搅拌站支撑结构结构安全检测评估

The Morphology and Phylogeny of Three Diophrys Ciliates Collected from the Subtropical Waters of China, Including a New Species (Ciliophora;Euplotia)

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Journal of Ocean University of China 2020年第4期19卷 975-987页

作者： ZHANG Chaojian HUANG Jie ye Tingting LU Borong CHEN xiangrui School of Marine Sciences Ningbo UniversityNingbo 315211China Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences Institute of HydrobiologyChinese Academy of SciencesWuhan 430072China Institute of Evolution and Marine Biodiversity Ocean University of ChinaQingdao 266003China College of Fisheries Ocean University of ChinaQingdao 266003China

Three Diophrys species,*** ***.,*** Borror,1965 and ***(Dujardin,1841)Kahl,1932,were identified from the subtropical brackish waters in China,their morphology was investigated using live observation and protargol *** *** be distinguished from the congeners by four ellipsoidal macronuclear *** analyses show that the three species with single marginal cirrus are closely related,namely *** ***.,*** Song et al.,2009 and *** Hu,*** population of *** corresponds very well with previous populations in both living morphology and ***,the SSU rDNA sequences of three well-described populations differ from each other by 11 to 18 nucleotides,indicating that there might be cryptic species in ***,we provided a detailed description of the symbiotic bacteria/archaeobacteria(?)concentrated on the back surface of *** based on the present population,which was either overlooked or misinterpreted as cortical granules previously.

关键词： Diophrys morphology new species phylogeny taxonomy

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青核桃脱皮机理及装置设计与试验

食品与机械 2023年第8期39卷 89-97,185页

作者：李康李长河刘明政王乐意范林政叶祥瑞王子文王仁坤曹成茂邬健康青岛理工大学机械与汽车工程学院山东青岛266520 安徽农业大学工学院安徽合肥230036 山东五康轩现代农林发展有限公司山东邹城273500

目的:提高核桃初加工过程的机械化水平,解决青核桃脱皮过程中脱净率低、破碎率高等问题。方法:设计一种集刮削挤压、滚刷和清洗于一体的青核桃脱皮装置;对青核桃脱皮过程进行力学与运动学分析,结合理论力学理论建立青核桃空间受力模型,... 详细信息

目的:提高核桃初加工过程的机械化水平,解决青核桃脱皮过程中脱净率低、破碎率高等问题。方法:设计一种集刮削挤压、滚刷和清洗于一体的青核桃脱皮装置;对青核桃脱皮过程进行力学与运动学分析,结合理论力学理论建立青核桃空间受力模型,并对关键系统装置进行结构设计。在单因素试验基础上,以转速、对辊末端间距和中心距的取值范围为影响因素,利用Design-Expert 13进行三因素三水平试验,优化青核桃脱皮装置工作参数。结果:青核桃脱皮装置的最佳工作参数为转速64.54 r/min、对辊末端间距41.7 mm、中心距9.44 mm,此条件下的核桃脱净率为91.92%,破碎率为4.49%。结论:该脱皮装置能满足青核桃脱皮生产要求。

关键词：青核桃脱皮装置刮削挤压力学分析脱净率

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Morphology and Molecular Phylogeny of Two Marine Folliculinid Ciliates Found in China (Ciliophora, Heterotrichea)

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Journal of Ocean University of China 2021年第4期20卷 959-972页

作者： ye Tingting ZHAO Xuetong CHI Yong ZHENG Bohan ZHANG Hui HUANG Jie WARREN Alan CHEN xiangrui School of Marine Sciences Ningbo UniversityNingbo 315800China Institute of Evolution and Marine Biodiversity Ocean University of ChinaQingdao 266003China Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences Institute of HydrobiologyChinese Academy of SciencesWuhan 430072China Department of Life Sciences Natural History MuseumLondon SW75BDUK

Ciliates of the heterotrich family Folliculinidae are characterized by their transparent lorica,conspicuous peristomial lobes pair and dimorphic life cycle,a sessile trophont and a motile ***,understanding their biodiversity and systematics is relatively *** the present study,two species representing two genera of folliculinids,which were collected from marine and brackish habitats in China,were investigated with morphological and molecular *** genus Diafolliculina *** established for *** *** morphological redescriptions for another species Eufolliculina is ***,phylogenetic analysis based on small subunit ribosomal DNA(SSU rDNA)sequences showed that 1)all two genera locate in the Folliculinidae clade;2)Metafolliculina clusters with Eufolliculina;and 3)two genera(Diafolliculina and Ampullofolliculina)with a lorica closure device have close affinities with *** lorica of Diafolliculina and Ampullofolliculina lacks a closure device,thereby the phylogeney contradicts the morphology-based classification.

关键词： Diafolliculina longilobata n.gen.,n.sp. Folliculinidae morphology SSU rDNA phylogeny

The widely reported but poorly studied ciliate family Folliculinidae(Protozoa,Ciliophora,Heterotrichea):a revision with notes on its taxonomy,morphology and phylogenetic relationships

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Marine Life Science & Technology 2022年第4期4卷 471-492页

作者： Tingting ye Yaohan Jiang Shuchang Chen Yixiang Xu Lifang Li Mann Kyoon Shin xiangrui Chen School of Marine Sciences Ningbo UniversityNingbo315800China Laboratory of Marine Protozoan Biodiversity and Evolution Marine CollegeShandong UniversityWeihai264209China Institute of Evolution and Marine Biodiversity and College of FisheriesOcean University of ChinaQingdao266003China Department of Biological Sciences University of UlsanUlsan44610South Korea

Ciliates of the heterotrich family Folliculinidae are widespread in various habitats and are distinguished by their transparent loricae of various shapes,conspicuous peristomial lobes,and dimorphic life *** usually attach firmly to the surface of substrates,feed on bacteria and microalgae,and play a significant role in energy flow and material cycling in the microbial food ***,little is known regarding their biodiversity and *** this work,we establish the terminology of the family Folliculinidae and select six crucial features for genus *** on previous studies,we revise the classification of Folliculinidae,supply improved diagnoses for each of the 33 folliculinid genera,and provide a key to their ***,phylogenetic analyses based on small subunit ribosomal DNA(SSU rDNA)sequences revealed that the family is monophyletic and comprises two subclades(subclades I II)which can be identified by the flexibility of their peristomial lobes and the sculpturing of their ***,we investigate the evolutionary relationships of folliculinids using the six chosen generic features.

关键词： Ciliates Evolutionary relationships Folliculinidae Heterotrichea Review

基于“小肠火”理论论治良性前列腺增生之下尿路症状

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云南中医药大学学报 2024年第1期47卷 1-4页

作者：任飞强董叶钱升强郭宇殷祥瑞徐斌熊伟重庆市中医院泌尿外科重庆江北400021 都江堰市中医医院泌尿外科四川都江堰611800

小肠象火,旺于夏,手太阳其经,心之腑也,其体又为水之路,与水液代谢的作用联系紧密。良性前列腺增生(BPH)是泌尿外科常见病之一,也是引起中老年男性下尿路症状(LUTS)的主要原因,探讨新的治疗思路,以改善BPH/LUTS患者生活质量,降低其手术... 详细信息

小肠象火,旺于夏,手太阳其经,心之腑也,其体又为水之路,与水液代谢的作用联系紧密。良性前列腺增生(BPH)是泌尿外科常见病之一,也是引起中老年男性下尿路症状(LUTS)的主要原因,探讨新的治疗思路,以改善BPH/LUTS患者生活质量,降低其手术可能,有一定必要性。“小肠火”理论在一定程度上与LUTS/BPH联系紧密。据此,该文从“小肠火”理论出发,将“小肠火”的病机特点与LUTS/BPH关键病理生理对应,探究LUTS/BPH的治疗思路,以期提高临床疗效。

关键词：小肠火下尿路症状水道

A new contribution to the taxonomy and phylogeny of the ciliate genus Spirostomum(Alveolata,Ciliophora,Heterotrichea),with comprehensive descriptions of two species from wetlands in China

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Water Biology and Security 2022年第2期1卷 23-37页

作者： Yong Chi Zhe Wang Tingting ye Ya Wang Junli Zhao Weibo Song William A.Bourland xiangrui Chen Institute of Evolution&Marine Biodiversity and College of FisheriesOcean University of ChinaQingdao266003China School of Marine Sciences Ningbo UniversityNingbo315800China Weishan Fishery Development Service Center Jining277600China Department of Zoology Faculty of ScienceCharles UniversityPrague12843Czech Republic

Species of the ciliate genus Spirostomum Ehrenberg,1834 are distributed worldwide and have a research history spanning more than two ***,species delimitation and phylogenetic relationships within this genus are still uncertain due to the paucity of stable morphologic characters for species separation and the unavailability of accompanying morphological data for most molecular sequences in public *** the present study,*** Shigenaka,1959(three populations)and ***(Müller,1786)Delphy,1939(one population)were investigated using morphological and molecular methods for the first time in *** morphological data for the two species were documented,and improved diagnoses were supplied based on a combination of previous studies and the current *** should be highlighted that there were three different atypical morphotypes identified in a Ningbo population of *** which may represent various stages in conjugative *** phylogenies based on 18S,ITS1-5.8S-ITS2,and 28S rRNA gene sequences show that the genus Spirostomum is monophyletic,however,the internal relationships inferred from different genes were poorly resolved but suggest that the species with a moniliform macronucleus comprise an early-diverging clade within this ***,the global distribution of Spirostomum is summarized based on previous and present studies.

关键词： Conjugation Morphogenesis Morphology Phylogeny Ribosomal RNA