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Non-thermal atmospheric-pressure positive pulsating corona discharge in degradation of textile dye Reactive Blue 19 enhanced by Bi_(2)O_(3) catalyst

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Plasma Science and Technology 2024年第2期26卷 104-113页

作者： Milica PETROVIC Dragan RADIVOJEVIC sasa RANCEV Nena VELINOV Milos KOSTIC Danijela BOJIC Aleksandar BOJIC Department of Chemistry Faculty of Sciences and MathematicsUniversity of NisNis 18000Serbia Department of Physics Faculty of Sciences and MathematicsUniversity of NisNis 18000Serbia

In this work,monoclinic Bi_(2)O_(3) was applied for the first time,to the best of our knowledge,as a catalyst in the process of dye degradation by a non-thermal atmospheric-pressure positive pulsating corona *** research focused on the interaction of the plasma-generated species and the catalyst,as well as the role of the catalyst in the degradation *** decomposition of the anthraquinone reactive dye Reactive Blue 19(RB 19) was performed in a selfmade reactor ***_(2)O_(3) was prepared by electrodeposition followed by thermal treatment,and characterized by x-ray diffraction,scanning electron microscopy and energy-dispersive xray *** was observed that the catalyst promoted decomposition of plasma-generated H_(2)O_(2) into ·OH radicals,the principal dye-degrading reagent,which further attacked the dye *** catalyst improved the decolorization rate by 2.5 times,the energy yield by 93.4%and total organic carbon removal by 7.1%.Excitation of the catalyst mostly occurred through strikes by plasma-generated reactive ions and radical species from the air,accelerated by the electric field,as well as by fast electrons with an energy of up to 15 eV generated by the streamers reaching the liquid *** strikes transferred the energy to the catalyst and created the electrons and holes,which further reacted with H_(2)O_(2) and water,producing ·OH *** was indentified as the primary role of the catalyst in this *** reactions followed pseudo first-order *** of H_(2)O_(2) and the dye degradation rate increased with increase in the input *** optimal catalyst dose was 500 mg·dm^(-3).The decolorization rate was a little lower in river water compared with that in deionized water due to the side reactions of ·OH radicals with organic matter and inorganic ions dissolved in the river water.

关键词： corona RB 19 Bi_(2)O_(3) catalyst degradation

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非物质文化遗产保护中习惯规则的价值探析

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贵州民族研究 2024年第2期45卷 171-176页

作者：萨矗荣贵中国人民大学法学院北京100872

非物质文化遗产本身蕴含着丰富的习惯规则内容,这些传统的习惯规则在文化传承中发挥着正式规范所无法替代的作用。习惯规则主要通过口头传承的方式得以延续,并由习惯机构依据传统社区和群体的文化价值观执行,旨在保护非物质文化遗产的... 详细信息

非物质文化遗产本身蕴含着丰富的习惯规则内容,这些传统的习惯规则在文化传承中发挥着正式规范所无法替代的作用。习惯规则主要通过口头传承的方式得以延续,并由习惯机构依据传统社区和群体的文化价值观执行,旨在保护非物质文化遗产的社会和文化利益,确保群体内成员享有平等的权利义务。根据传统习惯,非遗是集体所共有的,其使用伦理依赖于习惯规则和群体内部的社会关系。因此习惯规则在保护集体权利方面发挥着重要作用。沿袭多年的习惯规则与非遗所在的地域和群体紧密相连,与现代法治互补并存,共同发挥作用。在非遗保护价值观上,二者的一致性能使它们相互呼应,共同维护非遗的传承与发展。

关键词：习惯规则集体利益合理使用现代价值

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从《沈阳百咏》探析光绪初年盛京城人居文化景观

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风景园林 2024年第6期31卷 133-139页

作者：谢淼伊娜王飒沈阳建筑大学建筑与规划学院沈阳建筑大学辽宁省区域建筑学与寒地人居科学重点实验室

【目的】从人居环境学的角度,探究在清末外部变化影响下仍是帝国陪都的盛京城内文化景观和城市空间变化,以填补盛京城清末文化景观研究的不足。【方法】以《沈阳百咏》为依据,运用文本挖掘语义分析、时间地理学分析、历史地理空间分析... 详细信息

【目的】从人居环境学的角度,探究在清末外部变化影响下仍是帝国陪都的盛京城内文化景观和城市空间变化,以填补盛京城清末文化景观研究的不足。【方法】以《沈阳百咏》为依据,运用文本挖掘语义分析、时间地理学分析、历史地理空间分析量化光绪初年盛京城人居文化景观类型和时空信息,探讨文化景观的分布规律,并通过对比清朝前、中、末期城市空间,总结光绪初年盛京城的风貌特点。【结果】将盛京城人居文化景观归纳为“游憩玩赏”“盛京旧制”“市井生活”“信俗集会”4个一级分类及15个二级分类,发现文化景观类型与季节农时有强关联,不同文化景观在地理空间分布上有显著差异,整体上集中于关厢地带,城北景观密度高于城南。通过将《沈阳百咏》中城市空间与清前、中期城市空间对比发现,光绪初年盛京城已成为有满族特色的地方中心性城市。【结论】对《沈阳百咏》的深入挖掘填补了清末盛京城文化景观研究的缺环,为清代盛京城研究提供新思路,同时也为后续通过诗文分析盛京城文化景观格局提供了参考。

关键词：文化景观人居环境学诗词文本挖掘时空结构清代盛京城

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Solitary Osteogenic Exostosis of the Femur Revealed by Recurring Acute Distal Thigh Pain: About a Case

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Open Journal of Pediatrics 2024年第4期14卷 719-726页

作者： Thierno saïdou Barry Mohamed Lamine sadou sacko Balla Keita Sory Sidimé Moussa Condé Daniel Agbo-Panzo Pediatric Surgery Department Donka National Hospital (HND) of the University Hospital of Conakry Gamal Abdel Nasser University of Conakry (UGANC) of Guinea Conakry Guinea Orthopedic and Trauma Surgery Department Donka National Hospital (HND) of the Conakry University Hospital Conakry Guinea

Introduction: Solitary exostoses are the most common benign tumors of the fertile metaphyses of the long bones of children. Their radiological diagnosis of metaphyseal bone growth must be confirmed on pathological examination. These tumors can remain asymptomatic for a long time and reveal themselves during a particularly vascular complication. The objective of this study was to describe the epidemiological, diagnostic, therapeutic and evolutionary aspects of these tumors. Patient and Observation: We report the case of a 15-year-old adolescent girl, with no particular pathological history, received in the pediatric surgery department of the Donka National Hospital (HND) of the Conakry University Hospital for recurrent acute painful swelling of the lower third of the left thigh in an afebrile context accompanied by lameness and stopping school for a few days (2 - 3 days). The symptoms appear to have evolved over the past 3 years and after physical activities. It regresses with rest, analgesics and non-steroidal anti-inflammatory drugs. The notion of trauma and sickle cell disease was not reported in the patient's clinical history. It is the persistence of the symptomatology which motivates the said consultation. On palpation, a small hard mass is noted at the expense of the internal metaphysis of the left distal femur. Deep palpation of this area causes a tingling sensation and during rapid mobilization of the knee. The remainder of the orthopedic examination was unremarkable. Standard x-ray of the femur shows a bony growth with a pointed tip from the distal metaphysis of the left femur. On surgical exploration, we noted a wedge-shaped exostosis oriented towards the vastus medialis muscle. Histological examination of the surgical specimen confirms osteogenic exostosis. There is no recurrence after 2 years. Conclusion: The distal femoral metaphysis is the most common location of solitary osteochondromas in children. Their definitive diagnosis requires the histology of

关键词： Osteogenic Exostosis Osteochondromas Fertile Long Bone Metaphyses Child

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Local Criteria Used by Farmers to Evaluate the Agronomic Performance and the Fertilizing Capacity of Cowpea varieties: Diversity, variability and Proximal Relation with Agronomic Measurements in Contrasted sahelian Locations

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Agricultural Sciences 2024年第1期15卷 114-131页

作者： Nouhou salifou Jangorzo Abdoul-Aziz saïdou Abou-Soufianou sadda Abdoulaye Moussa Mamoudou Hassane Bil-Assanou Issoufou Département des Sciences du Sol et Télédétection Université Dan Dicko Dankoulodo de Maradi Maradi Niger. Unité Mixte de Recherche “Diversité et Adaptation des Plantes” (UMR DAP) Université Dan Dicko Dankoulodo de Maradi Maradi Niger Centre Imaan de Support en Recherche Transdisciplinaire (Imaan Research) Niamey Niger Institut de Recherche pour le Développement Niamey Niger Université Boubacar BA de Tillabéri Tillabéri Niger Département des Sciences et Techniques de Productions Végétales Université Dan Dicko Dankoulodo de Maradi Maradi Niger

When contributing to participatory research, farmers usually appreciate the performance of cowpea varieties using qualitative scores. The score they attribute to each variety are based on local knowledge. The specific criteria they individually use to attribute a score are not well described. The objectives of this work were to: 1) identify and describe exhaustively the local criteria used by farmers to measure the agronomic performance of cowpea;2) assess the variability and statistical structure of these farmer criteria across local contexts;3) and analyze the association between these farmer criteria and the classical agronomic measurement. To achieve these objectives, an augmented block design was implemented across fifteen locations in the regions of Maradi, Dosso and Tillabéri, representing a diversity of local contexts. From a set of 36 cowpea varieties, fifteen varieties were sown per location, including five varieties (controls) common to all locations. In each location, two replicates were sown in randomized Fisher’s blocks. After agronomic measurement and participatory evaluation (scoring of varieties by farmers), a group survey (focus group) was conducted in each location to identify the criteria considered by farmers to found their discretional scoring of varieties during the participatory evaluation. The analysis of the data identified, across locations, thirteen criteria defined by farmers to characterize the agronomic performance of cowpea. Some of these criteria were different according to location. Farmers ranked the three varieties with the best performance for each agronomical trait (Top 3 varieties). A comparison of the farmer ranking with the ranking based on agronomic measurements revealed similarity and complementary between both methods. This study highlighted the importance of considering both local and scientific knowledge in local varietal evaluations.

关键词： Agronomic Performance Participatory Research Cowpea Farmers’ Criteria

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动态虚拟患者技术在口腔修复领域的应用进展

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中华口腔医学杂志 2024年第3期59卷 267-273页

作者：高雨童撒悦杨静文武汉大学口腔医(学)院修复科、口颌系统重建与再生全国重点实验室、口腔生物医学教育部重点实验室、口腔医学湖北省重点实验室武汉430079 北京大学口腔医学院·口腔医院修复科、国家口腔医学中心、国家口腔疾病临床医学研究中心、口腔生物材料和数字诊疗装备国家工程研究中心、口腔数字医学北京市重点实验室北京100081

随着面部扫描、口内扫描、虚拟面弓、下颌运动轨迹记录等技术在口腔修复领域的发展及应用,动态虚拟患者技术逐渐被应用于口腔修复的术前分析、美学诊断、治疗设计及修复体制作,并成为近年的研究热点。本文从口腔动静态数据获取、动态口... 详细信息

随着面部扫描、口内扫描、虚拟面弓、下颌运动轨迹记录等技术在口腔修复领域的发展及应用,动态虚拟患者技术逐渐被应用于口腔修复的术前分析、美学诊断、治疗设计及修复体制作,并成为近年的研究热点。本文从口腔动静态数据获取、动态口腔虚拟患者的构建、动态口腔虚拟患者的应用优势等方面对动态虚拟患者技术在口腔修复领域中的应用和研究展开综述,以期为相关数字化技术的临床应用提供参考。

关键词：计算机辅助设计牙修复体设计义齿修复术动态虚拟患者

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Resection of Intracranial Giant Cavernous Malformation: Case Report and Literature Review

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Surgical Science 2024年第2期15卷 28-35页

作者： Vinicios Rivelli Da Fonseca Cleverson Martins Kill Mariana Alcantara Hugo Fialho Leonnan De sa Oliveira Lucidio Souza Filho Department of Neurosurgery Hospital Santa Rita Belo Horizonte Brazil

Cerebral cavernous malformations are a rare and congenital vascular malformation that can present as a challenge in neurosurgical management. The term “giant cerebral cavernous malformations” still does not have a clear definition in the literature, with a wide variety of results. It is known, however, that there is an association between the size of the cavernoma and postoperative sequelae, especially in those with a size greater than 3 cm in its largest diameter. We present a case report of resection of a giant brain cavernoma measuring approximately 8 cm in its largest diameter, emphasizing on clinical presentation, diagnoses and postoperative evolution. Additionally, we performed a comprehensive review of the existing literature on the subject, addressing the epidemiology, pathophysiology, diagnostic methods, treatment options, and prognosis associated with this condition.

关键词： Cavernous Malformation Cerebral Cavernous Malformation Giant Cavernous Malformation Cavernous Hemangioma Cavernous Angioma Cavernoma Giant Cavernoma

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核级截止阀抗冲击性能数值分析

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阀门 2024年第4期 454-459页

作者：查洒洒赵晶沈阳工业大学机械工程学院辽宁沈阳110870

为确保对核级截止阀的抗冲击性能进行全面而准确的评估,以核级截止阀为对象,分别采用动力学设计法(DDAM)和时域模拟法在频域和时域上对核级截止阀进行抗冲击计算分析。首先计算截止阀分别在纵向、垂向和横向三个方向上的频域和时域冲击... 详细信息

为确保对核级截止阀的抗冲击性能进行全面而准确的评估,以核级截止阀为对象,分别采用动力学设计法(DDAM)和时域模拟法在频域和时域上对核级截止阀进行抗冲击计算分析。首先计算截止阀分别在纵向、垂向和横向三个方向上的频域和时域冲击载荷,然后对截止阀的抗冲击特性进行仿真计算,得到截止阀三个方向上的位移及应力分布。两种方法计算结果表明,截止阀的阀体两侧拐角部位是截止阀在冲击载荷下的薄弱部分。同时,截止阀对冲击载荷的响应与冲击加载方向有很大关系,截止阀响应的特性都以横向响应为主,要对横向抗冲击设计重点考虑。

关键词：核级截止阀 DDAM方法时域模拟法抗冲击分析

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The multi-peak point phenomenon of broadband microwave reflection caused by inhomogeneous plasma

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Plasma Science and Technology 2024年第7期26卷 1-11页

作者：杨敏齐凯旋杨玖文贾飒刘浩岩陈燕扬李瑾李小平 School of Aerospace Science and Technology Xidian UniversityXi’an 710071People’s Republic of China Taiyuan satellite Launch Center Taiyuan 030173People’s Republic of China Beijing Institute of Nearspace Vehicle’s Systems Engineering Beijing 100076People’s Republic of China

During spacecraft re-entry,the challenge of measuring plasma sheath parameters directly contributes to difficulties in addressing communication *** this work,we have discovered a phenomenon of multiple peaks in reflection data caused by the inhomogeneous *** results show that the multi-peak points fade away as the characteristic frequency is approached,resembling a series of gradually decreasing *** positions and quantities of these points are positively correlated with electron density,yet they show no relation to collision *** phenomenon is of significant reference value for future studies on the spatial distribution of plasmas,particularly for using microwave reflection signals in diagnosing the plasma sheath.

关键词： plasma sheath microwave reflection inhomogeneous plasma

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观众行为视角下的观赏型与信息型展览差异--以云冈石窟主题展为例

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东南文化 2024年第4期 127-139页

作者：巨洒洒何雨蔚黄梓若王思渝杭侃西北大学文化遗产学院陕西西安710127 北京大学考古文博学院北京100871 云冈研究院山西大同037007

调查以两场云冈石窟主题展为例,从观众行为入手,分析观赏型展览和信息型展览的观众行为差异以及这些差异对两类展览的启发。研究表明,观众在两个展览中的主要行为方式均为观看、交流和拍照,但在高频率行为和特殊行为中有所差异。观赏型... 详细信息

调查以两场云冈石窟主题展为例,从观众行为入手,分析观赏型展览和信息型展览的观众行为差异以及这些差异对两类展览的启发。研究表明,观众在两个展览中的主要行为方式均为观看、交流和拍照,但在高频率行为和特殊行为中有所差异。观赏型展览案例出现较为明显的非完成状态的参观,而信息型展览案例的观众动线主要遵循预设的路线。观众偏好视觉性较强的展项,但注意力的持续停留取决于展项是否提供进一步的信息或兴趣刺激点。观赏型展览案例的观众对话以知觉类和联系类为主,信息型展览案例发生频率最多的是与展览相关的浅层次话题。

关键词：观众行为观赏型展览信息型展览

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