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养护制度对混凝土微结构形成机理的影响进展 被引量:21
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作者 张高展 葛竞成 +4 位作者 张春晓 杨军 刘开伟 王爱国 孙道胜 《材料导报》 EI CAS CSCD 北大核心 2021年第15期15125-15133,共9页
养护制度是影响混凝土微结构形成的关键因素,进而决定了混凝土的性能。早在20世纪60年代,国内外学者就尝试通过控制养护温度或湿度来改善混凝土的性能,但由于控制变量的单一性,其对混凝土性能的提升效果有限。随着现代混凝土技术的发展... 养护制度是影响混凝土微结构形成的关键因素,进而决定了混凝土的性能。早在20世纪60年代,国内外学者就尝试通过控制养护温度或湿度来改善混凝土的性能,但由于控制变量的单一性,其对混凝土性能的提升效果有限。随着现代混凝土技术的发展,同时控制养护温度、湿度,甚至压力的蒸汽养护与蒸压养护应运而生。蒸汽养护和蒸压养护主要通过生成大量高密度C-S-H凝胶来为混凝土提供强度,且随着蒸压养护的持续,C-S-H凝胶向强度高、密度大的托勃莫来石转变,促进混凝土强度进一步增长。然而,蒸汽养护与蒸压养护在快速提高混凝土强度的同时,也会使混凝土产生孔隙率增大、孔径粗化及界面过渡区性能变差等问题,从而影响混凝土的长期耐久性。为此,常采用降低水胶比、掺加矿物掺合料、延长养护时间、二次养护等措施,来改善蒸汽养护与蒸压养护混凝土的界面过渡区性能和孔隙结构,从而提升混凝土微结构的稳定性。本文在综述标准养护、蒸汽养护和蒸压养护对混凝土水化产物的组成与形貌、界面过渡区和孔隙结构影响的基础上,归纳了不同养护制度下改善混凝土界面过渡区和孔隙结构的有效措施,分析了不同养护制度提升混凝土微结构稳定性的作用和机理,以期为混凝土养护制度的选择提供参考。最后,指出了不同养护制度下超高性能混凝土微结构形成与演变研究的不足。 展开更多
关键词 蒸汽养护 蒸压养护 水化产物 界面过渡区 孔结构
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Comparison between endoscopic sclerotherapy and band ligation for hemostasis of acute variceal bleeding 被引量:21
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作者 Gustavo Oliveira Luz Fauze Maluf-Filho +5 位作者 Sérgio Eiji Matuguma Fábio Yuji Hondo Edson ide Jeane Martins Melo Spencer Cheng Paulo Sakai 《World Journal of Gastrointestinal Endoscopy》 CAS 2011年第5期95-100,共6页
AIM:To compare band ligation(BL) with endoscopic sclerotherapy(SCL) in patients admitted to an emergency unit for esophageal variceal rupture. METHODS:A prospective,randomized,single-center study without crossover was... AIM:To compare band ligation(BL) with endoscopic sclerotherapy(SCL) in patients admitted to an emergency unit for esophageal variceal rupture. METHODS:A prospective,randomized,single-center study without crossover was conducted.After endoscopic diagnosis of esophageal variceal rupture,patients were randomized into groups for SCL or BL treatment.Sclerotherapy was performed by ethanolamine oleate intravascular injection both above and below the rupture point,with a maximum volume of 20 mL.For BL patients,banding at the rupture point was attempted,followed by ligation of all variceal tissue of the distal esophagus.Primary outcomes for both groups were initial failure of bleeding control(5 d) ,early re-bleeding(5 d to 6 wk),and complications,including mortality.From May 2005 to May 2007,100 patients with variceal bleeding were enrolled in thestudy:50 SCL and 50 BL patients.No differences between groups were observed across gender,age,ChildPugh status,presence of shock at admission,mean hemoglobin levels,and variceal size. RESULTS:No differences were found between groups for bleeding control,early re-bleeding rates,complications,or mortality.After 6 wk,36(80%) SCL and 33(77 %) EBL patients were alive and free of bleeding.A statistically significant association between Child-Pugh status and mortality was found,with 16%mortality in Child A and B patients and 84%mortality in Child C patients(P<0.001) . CONCLUSION:Despite the limited number of patients included,our results suggest that SCL and BL are equally efficient for the control of acute variceal bleeding. 展开更多
关键词 Portal hypertension HEMORRHAGE ESOPHAGEAL VARICES Gastrointestinal endoscopy LIGATION SCLEROTHERAPY
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Deep sedation during gastrointestinal endoscopy: Propofol-fentanyl and midazolam-fentanyl regimens 被引量:17
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作者 Marcos Eduardo Lera dos Santos Fauze Maluf-Filho +7 位作者 Dalton Marques Chaves Sergio Eiji Matuguma Edson ide Gustavo de Oliveira Luz Thiago Ferreira de Souza Fernanda C Simoes Pessorrusso Eduardo Guimares Hourneaux de Moura Paulo Sakai 《World Journal of Gastroenterology》 SCIE CAS 2013年第22期3439-3446,共8页
AIM: To compare deep sedation with propofol-fentanyl and midazolam-fentanyl regimens during upper gastrointestinal endoscopy. METHODS: After obtaining approval of the research ethics committee and informed consent, 20... AIM: To compare deep sedation with propofol-fentanyl and midazolam-fentanyl regimens during upper gastrointestinal endoscopy. METHODS: After obtaining approval of the research ethics committee and informed consent, 200 patients were evaluated and referred for upper gastrointestinal endoscopy. Patients were randomized to receive propofol-fentanyl or midazolam-fentanyl (n = 100/group).We assessed the level of sedation using the observer's assessment of alertness/sedation (OAA/S) score and bispectral index (BIS). We evaluated patient and physician satisfaction, as well as the recovery time and complication rates. The statistical analysis was performed using SPSS statistical software and included the MannWhitney test, χ 2 test, measurement of analysis of variance, and the κ statistic. RESULTS: The times to induction of sedation, recovery, and discharge were shorter in the propofolfentanyl group than the midazolam-fentanyl group. According to the OAA/S score, deep sedation events occurred in 25% of the propofol-fentanyl group and 11% of the midazolam-fentanyl group (P = 0.014). Additionally, deep sedation events occurred in 19% of the propofol-fentanyl group and 7% of the midazolamfentanyl group according to the BIS scale (P = 0.039). There was good concordance between the OAA/S score and BIS for both groups (κ = 0.71 and κ = 0.63, respectively). Oxygen supplementation was required in 42% of the propofol-fentanyl group and 26% of the midazolam-fentanyl group (P = 0.025). The mean time to recovery was 28.82 and 44.13 min in the propofolfentanyl and midazolam-fentanyl groups, respectively (P < 0.001). There were no severe complications in either group. Although patients were equally satisfied with both drug combinations, physicians were more satisfied with the propofol-fentanyl combination. CONCLUSION: Deep sedation occurred with propofolfentanyl and midazolam-fentanyl, but was more frequent in the former. Recovery was faster in the propofol-fentanyl group. 展开更多
关键词 Endoscopy Deep SEDATION ANESTHETIC administration ANESTHETIC dose ADVERSE effects
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Narrow-band imaging without magnification for detecting early esophageal squamous cell carcinoma 被引量:15
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作者 Edson ide Fauze Maluf-Filho +2 位作者 Dalton Marques Chaves Sergio Eiji Matuguma Paulo Sakai 《World Journal of Gastroenterology》 SCIE CAS CSCD 2011年第39期4408-4413,共6页
AIM:To compare narrow-band imaging(NBI)without image magnification,and chromoendoscopy with Lugol's solution for detecting high-grade dysplasia and intramu-cosal esophageal squamous cell carcinoma(SCC)in patient... AIM:To compare narrow-band imaging(NBI)without image magnification,and chromoendoscopy with Lugol's solution for detecting high-grade dysplasia and intramu-cosal esophageal squamous cell carcinoma(SCC)in patients with head and neck cancer.METHODS:This was a prospective observational study of 129 patients with primary head and neck tumors consecutively referred to the Gastrointestinal Endoscopy Unit of Hospital das Clínicas,Sao Paulo University Medical School,Brazil,between August 2006 and Feb-ruary 2007.Conventional examinations with NBI and Lugol chromoendoscopy were consecutively performed,and the discovered lesions were mapped,recorded and sent for biopsy.The results of the three methods were compared regarding sensitivity,specificity,accuracy,positive predictive value,negative predictive value,positive likelihood value and negative likelihood value.RESULTS:Of the 129 patients,nine(7%)were diag-nosed with SCC,5 of which were in situ and 4 which were intramucosal.All carcinomas were detected through NBI and Lugol chromoendoscopy.Only 4 le-sions were diagnosed through conventional examination,all of which were larger than 10 mm.CONCLUSION:NBI technology with optical filters has high sensitivity and high negative predictive value for detecting superficial esophageal SCC,and produces results comparable to those obtained with 2.5%Lugol chromoendoscopy. 展开更多
关键词 Gastrointestinal endoscopy Squamous cell carcinoma Esophageal neoplasms DIAGNOSIS Lugol's solution
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爆炸波致颅脑损伤力学机制与防护综述 被引量:10
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作者 蔡志华 贺葳 +2 位作者 汪剑辉 王幸 张磊 《兵工学报》 EI CAS CSCD 北大核心 2022年第2期467-480,共14页
爆炸波致颅脑损伤是新战争模式下单兵的主要致伤形式,特别是在近年来频繁发生的恐怖袭击和爆炸安全事故中,越来越多的平民遭受着这种创伤的痛苦。迄今国内外学者已开展了爆炸波致颅脑损伤的研究,但其致伤机制、损伤阈值、防护技术和损... 爆炸波致颅脑损伤是新战争模式下单兵的主要致伤形式,特别是在近年来频繁发生的恐怖袭击和爆炸安全事故中,越来越多的平民遭受着这种创伤的痛苦。迄今国内外学者已开展了爆炸波致颅脑损伤的研究,但其致伤机制、损伤阈值、防护技术和损伤评估技术等尚未完全阐明。在广泛调研国内外最新研究动态的基础上,结合团队多年来在武器毁伤与防护领域的研究工作,对爆炸波的产生、造成的颅脑损伤类型及其病理特征、研究方法、致伤机制、损伤阈值和防护方法等6个方面进行了综述,重点分析了研究现状和热点、存在的主要问题和未来研究方向。 展开更多
关键词 爆炸波 颅脑损伤 力学机制 防护
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Cell transplantation for the treatment of spinal cord injury–bone marrow stromal cells and choroid plexus epithelial cells 被引量:9
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作者 Chizuka ide Norihiko Nakano Kenji Kanekiyo 《Neural Regeneration Research》 SCIE CAS CSCD 2016年第9期1385-1388,共4页
Transplantation of bone marrow stromal cells (BMSCs) enhanced the outgrowth of regenerating axons and promoted locomotor improvements of rats with spinal cord injury (SCI). BMSCs did not survive long-term, disappe... Transplantation of bone marrow stromal cells (BMSCs) enhanced the outgrowth of regenerating axons and promoted locomotor improvements of rats with spinal cord injury (SCI). BMSCs did not survive long-term, disappearing from the spinal cord within 2-3 weeks after transplantation. Astrocyte-devoid areas, in which no astrocytes or oligodendrocytes were found, formed at the epicenter of the lesion. It was remarkable that numerous regenerating axons extended through such astrocyte-devoid areas. Regenerating axons were associated with Schwann cells embedded in extracellular matrices. Transplantation of choroid plexus epithelial cells (CPECs) also enhanced axonal regeneration and locomotor improvements in rats with SCI. Although CPECs disappeared from the spinal cord shortly after transplantation, an extensive outgrowth of regenerating axons occurred through astrocyte-devoid areas, as in the case of BMSC transplantation. These findings suggest that BMSCs and CPECs secret neurotrophic factors that promote tissue repair of the spinal cord, including axonal regeneration and reduced cavity formation. This means that transplantation of BMSCs and CPECs promotes "intrinsic" ability of the spinal cord to regenerate. The treatment to stimu- late the intrinsic regeneration ability of the spinal cord is the safest method of clinical application for SCI. It should be emphasized that the generally anticipated long-term survival, proliferation and differentiation of transplanted cells are not necessarily desirable from the clinical point of view of safety. 展开更多
关键词 bone marrow stromal cell choroid plexus epithelial cell spinal cord injury axonal regeneration locomotor improvement intrinsic regeneration ability
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Enzyme-digested Colla Corii Asini(E’jiao) prevents hydrogen peroxide-induced cell death and accelerates amyloid beta clearance in neuronal-like PC12 cells 被引量:8
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作者 Li Xiao Feng Liao +4 位作者 Ryoji ide Tetsuro Horie Yumei Fan Chikako Saiki Nobuhiko Miwa 《Neural Regeneration Research》 SCIE CAS CSCD 2020年第12期2270-2277,共8页
As an aging-associated degenerative disease,Alzheimer’s disease is characterized by the deposition of amyloid beta(Aβ),oxidative stress,inflammation,dysfunction and loss of cholinergic neurons.Colla Corii Asini(CCA)... As an aging-associated degenerative disease,Alzheimer’s disease is characterized by the deposition of amyloid beta(Aβ),oxidative stress,inflammation,dysfunction and loss of cholinergic neurons.Colla Corii Asini(CCA)is a traditional Chinese medicine which has been used for feebleness-related diseases and anti-aging.CCA might delay aging-induced degenerative changes in neurons.In the present study,we evaluated antioxidant activity,cytoprotective effects,and Aβremovability of enzyme-digested Colla Corii Asini(CCAD).Oxygen radical absorbance capacity(ORAC)activity assay showed that,as compared to gelatins from the skin of porcine,bovine and cold water fish,CCA exhibited the highest ORAC activity.The ORAC activity of CCA and CCAD was increased gradually by the length of time in storage.Ultrastructure analysis by scanning electron microscopy showed that among CCA manufactured in 2008,2013,2017 and gelatin from cold water fish skin,CCA manufactured in 2008 presented the smoothest surface structure.We further tested the protective effects of CCAD(manufactured in 2008)and enzyme-digested gelatin from cold water fish skin(FGD)on hydrogen peroxide(H2O2)-induced cell death in nerve growth factor-differentiated neuronal-like PC12 cells.Presto blue assay showed that both FGD and CCAD at 0.5 mg/m L increased cell viability in H2O2-treated neuronal-like PC12 cells.The protection of CCAD was significantly superior to that of FGD.Acetylcholinesterase(Ach E)assay showed that both FGD and CCAD inhibited Ach E activity in nerve growth factor-differentiated neuronal-like PC12 cells to 89.1%and 74.5%of that in non-treated cells,respectively.The data suggest that CCAD might be able to increase the neurotransmitter acetylcholine.Although CCAD inhibited Ach E activity in neuronal-like PC12 cells,CCAD prevented H2O2-induced abnormal deterioration of Ach E.ELISA and neprilysin activity assay results indicated that CCAD reduced amyloid beta accumulation and increased neprilysin activity in Aβ1–42-treated neuronal-like PC12 cells,sugge 展开更多
关键词 acetylcholinesterase activity Alzheimer’s disease amyloid beta clearance antioxidant Colla Corii Asini collagen NEUROPROTECTION PC12 cells
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基于Zynq的大动态冲击波超压测试系统设计 被引量:8
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作者 李冒金 李剑 +5 位作者 刘宾 王黎明 孙袖山 余尚江 陈晋央 孟晓洁 《国外电子测量技术》 北大核心 2022年第1期51-56,共6页
针对实战演练过程中,冲击波超压大动态获取的需求,开展了基于Zynq的多通道多量程复合式冲击波超压采集存储系统设计。首先,以Zynq-7000系列SOC为核心,设计了传感器调理电路,四通道20 MHz采样率采集系统,基于D-LMS的实时自适应降噪模块和... 针对实战演练过程中,冲击波超压大动态获取的需求,开展了基于Zynq的多通道多量程复合式冲击波超压采集存储系统设计。首先,以Zynq-7000系列SOC为核心,设计了传感器调理电路,四通道20 MHz采样率采集系统,基于D-LMS的实时自适应降噪模块和DMA高速存储模块;其次对AD采集、片上自适应滤波等模块进行了仿真验证;最后在外场进行了试验验证,结果表明设计的大动态冲击波超压测试系统,能有效获取冲击波超压信号,该成果能够为大威力新型压制型武器的动态毁伤评估提供理论支撑。 展开更多
关键词 冲击波超压 Zynq 多量程高速采集 实时片上降噪 AXI4-Stream
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Fungal diversity notes 1036-1150:taxonomic and phylogenetic contributions on genera and species of fungal taxa 被引量:8
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作者 Kevin D.Hyde Danushka S.Tennakoon +81 位作者 Rajesh Jeewon DJayarama Bhat Sajeewa S.N.Maharachchikumbura Walter Rossi Marco Leonardi Hyang Burm Lee Hye Yeon Mun Jos Houbraken Thuong T.T.Nguyen Sun Jeong Jeon Jens Christian Frisvad Dhanushka N.Wanasinghe Robert Lucking Andre Aptroot Marcela E.S.Caceres Samantha C.Karunarathna Sinang Hongsanan Rungtiwa Phookamsak Nimali ide Silva Kasun M.Thambugala Ruvishika S.Jayawardena Indunil C.Senanayake Saranyaphat Boonmee Jie Chen Zong-Long Luo Chayanard Phukhamsakda Olinto L.Pereira Vanessa P.Abreu Andre Wilson Campos Rosado Buyck Bart Emile Randrianjohany Vale rie Hofstetter Tatiana B.Gibertoni Adriene Mayrada Silva Soares Helio Longoni Plautz Jr Helen Maria Pontes Sotao William Kalhy Silva Xavier Jadson Diogo Pereira Bezerra Thays Gabrielle Linsde Oliveira Cristina Mariade Souza-Motta Oliane Maria Correia Magalhaes Digvijayini Bundhun Dulanjalee Harishchandra Ishara S.Manawasinghe Wei Dong Sheng-Nan Zhang Dan-Feng Bao Milan C.Samarakoon Dhandevi Pem Anuruddha Karunarathna Chuan-Gen Lin Jing Yang Rekhani H.Perera Vinit Kumar Shi-Ke Huang Monika C.Dayarathne Anusha H.Ekanayaka Subashini C.Jayasiri Yuanpin Xiao Sirinapa Konta Tuula Niskanen Kare Liimatainen Yu-Cheng Dai Xiao-Hong Ji Xue-Mei Tian Armin Mesic Sanjay K.Singh Kunthida Phutthacharoen Lei Cai Touny Sorvongxay Vinodhini Thiyagaraja Chada Norphanphoun Napalai Chaiwan Yong-Zhong Lu Hong-Bo Jiang Jin-Feng Zhang Pranami D.Abeywickrama Janith V.S.Aluthmuhandiram Rashika S.Brahmanage Ming Zeng Thilini Chethana Deping Wei 《Fungal Diversity》 SCIE 2019年第3期1-242,共242页
This article is the tenth series of the Fungal Diversity Notes,where 114 taxa distributed in three phyla,ten classes,30 orders and 53 families are described and illustrated.Taxa described in the present study include ... This article is the tenth series of the Fungal Diversity Notes,where 114 taxa distributed in three phyla,ten classes,30 orders and 53 families are described and illustrated.Taxa described in the present study include one new family(viz.Pseudoberkleasmiaceae in Dothideomycetes),five new genera(Caatingomyces,Cryptoschizotrema,Neoacladium,Paramassaria and Trochilispora)and 71 new species,(viz.Acrogenospora thailandica,Amniculicola aquatica,A.guttulata,Angustimassarina sylvatica,Blackwellomyces lateris,Boubovia gelatinosa,Buellia viridula,Caatingomyces brasiliensis,Calophoma humuli,Camarosporidiella mori,Canalisporium dehongense,Cantharellus brunneopallidus,C.griseotinctus,Castanediella meliponae,Coprinopsis psammophila,Cordyceps succavus,Cortinarius minusculus,C.subscotoides,Diaporthe italiana,D.rumicicola,Diatrypella delonicis,Dictyocheirospora aquadulcis,D.taiwanense,Digitodesmium chiangmaiense,Distoseptispora dehongensis,D.palmarum,Dothiorella styphnolobii,Ellisembia aurea,Falciformispora aquatic,Fomitiporia carpinea,F.lagerstroemiae,Grammothele aurantiaca,G.micropora,Hermatomyces bauhiniae,Jahnula queenslandica,Kamalomyces mangrovei,Lecidella yunnanensis,Micarea squamulosa,Muriphaeosphaeria angustifoliae,Neoacladium indicum,Neodidymelliopsis sambuci,Neosetophoma miscanthi,N.salicis,Nodulosphaeria aquilegiae,N.thalictri,Paramassaria samaneae,Penicillium circulare,P.geumsanense,P.mali-pumilae,P.psychrotrophicum,P.wandoense,Phaeoisaria siamensis,Phaeopoacea asparagicola,Phaeosphaeria penniseti,Plectocarpon galapagoense,Porina sorediata,Pseudoberkleasmium chiangmaiense,Pyrenochaetopsis sinensis,Rhizophydium koreanum,Russula prasina,Sporoschisma chiangraiense,Stigmatomyces chamaemyiae,S.cocksii,S.papei,S.tschirnhausii,S.vikhrevii,Thysanorea uniseptata,Torula breviconidiophora,T.polyseptata,Trochilispora schefflerae and Vaginatispora palmae).Further,twelve new combinations(viz.Cryptoschizotrema cryptotrema,Prolixandromyces australi,P.elongatus,P.falcatus,P.longispinae,P.microveliae,P.neoalardi,P.polhemorum,P.protubera 展开更多
关键词 71 new taxa ASCOMYCOTA BASIDIOMYCOTA DOTHIDEOMYCETES Eurotiomycetes LECANOROMYCETES Leotiomycetes Pezizomycetes Phylogeny Taxonomy
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Fungal diversity notes 367-490:taxonomic and phylogenetic contributions to fungal taxa 被引量:7
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作者 Kevin D.Hyde Sinang Hongsanan +88 位作者 Rajesh Jeewon D.Jayarama Bhat Eric H.C.McKenzie E.B.Gareth Jones Rungtiwa Phookamsak Hiran A.Ariyawansa Saranyaphat Boonmee Qi Zhao Faten Awad Abdel-Aziz Mohamed A.Abdel-Wahab Supharat Banmai Putarak Chomnunti Bao-Kai Cui Dinushani A.Daranagama Kanad Das Monika C.Dayarathne Nimali ide Silva Asha J.Dissanayake Mingkwan Doilom Anusha H.Ekanayaka Tatiana Baptista Gibertoni Aristóteles Góes-Neto Shi-Ke Huang Subashini C.Jayasiri Ruvishika S.Jayawardena Sirinapa Konta Hyang Burm Lee Wen-Jing Li Chuan-Gen Lin Jian-Kui Liu Yong-Zhong Lu Zong-Long Luo Ishara S.Manawasinghe Patinjareveettil Manimohan Ausana Mapook Tuula Niskanen Chada Norphanphoun Moslem Papizadeh Rekhani H.Perera Chayanard Phukhamsakda Christian Richter AndréL.C.Mde A.Santiago E.Ricardo Drechsler-Santos Indunil C.Senanayake Kazuaki Tanaka T.M.D.S.Tennakoon Kasun M.Thambugala Qing Tian Saowaluck Tibpromma Benjarong Thongbai Alfredo Vizzini Dhanushka N.Wanasinghe Nalin N.Wijayawardene Hai-Xia Wu Jing Yang Xiang-Yu Zeng Huang Zhang Jin-Feng Zhang Timur S.Bulgakov Erio Camporesi Ali H.Bahkali Mohammad A.Amoozegar Lidia Silva Araujo-Neta Joseph F.Ammirati Abhishek Baghela R.P.Bhatt Dimitar Bojantchev Bart Buyck Gladstone Alves da Silva Catarina Letícia Ferreira de Lima Rafael JoséVilela de Oliveira Carlos Alberto Fragoso de Souza Yu-Cheng Dai Bálint Dima Tham Thi Duong Enrico Ercole Fernando Mafalda-Freire Aniket Ghosh Akira Hashimoto Sutakorn Kamolhan Ji-Chuan Kang Samantha C.Karunarathna Paul M.Kirk Ilkka Kytovuori Angela Lantieri Kare Liimatainen Zuo-Yi Liu Xing-Zhong Liu Robert Lückin 《Fungal Diversity》 SCIE 2016年第5期1-270,共270页
This is a continuity of a series of taxonomic papers where materials are examined,described and novel combinations are proposed where necessary to improve our traditional species concepts and provide updates on their ... This is a continuity of a series of taxonomic papers where materials are examined,described and novel combinations are proposed where necessary to improve our traditional species concepts and provide updates on their classification.In addition to extensive morphological descriptions and appropriate asexual and sexual connections,DNA sequence data are also analysed from concatenated datasets(rDNA,TEF-a,RBP2 and b-Tubulin)to infer phylogenetic relationships and substantiate systematic position of taxa within appropriate ranks.Wherever new species or combinations are being proposed,we apply an integrative approach(morphological and molecular data as well as ecological features wherever applicable).Notes on 125 fungal taxa are compiled in this paper,including eight new genera,101 new species,two new combinations,one neotype,four reference specimens,new host or distribution records for eight species and one alternative morphs.The new genera introduced in this paper are Alloarthopyrenia,Arundellina,Camarosporioides,Neomassaria,Neomassarina,Neotruncatella,Paracapsulospora and Pseudophaeosphaeria.The new species are Alfaria spartii,Alloarthopyrenia italica,Anthostomella ravenna,An.thailandica,Arthrinium paraphaeospermum,Arundellina typhae,Aspergillus koreanus,Asterina cynometrae,Bertiella ellipsoidea,Blastophorum aquaticum,Cainia globosa,Camarosporioides phragmitis,Ceramothyrium menglunense,Chaetosphaeronema achilleae,Chlamydotubeufia helicospora,Ciliochorella phanericola,Clavulinopsis aurantiaca,Colletotrichum insertae,Comoclathris italica,Coronophora myricoides,Cortinarius fulvescentoideus,Co.nymphatus,Co.pseudobulliardioides,Co.tenuifulvescens,Cunninghamella gigacellularis,Cyathus pyristriatus,Cytospora cotini,Dematiopleospora alliariae,De.cirsii,Diaporthe aseana,Di.garethjonesii,Distoseptispora multiseptata,Dis.tectonae,Dis.tectonigena,Dothiora buxi,Emericellopsis persica,Gloniopsis calami,Helicoma guttulatum,Helvella floriforma,H.oblongispora,Hermatomyces subiculosa,Juncaceicola italica,Lactarius dirkii,Lentithecium 展开更多
关键词 ASCOMYCOTA BASIDIOMYCOTA DOTHIDEOMYCETES Mortierellomycotina Mucoromycotina Pezizomycetes Phylogeny Taxonomy New genus New species New host records
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Fungal diversity notes 929-1035:taxonomic and phylogenetic contributions on genera and species of fungi 被引量:7
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作者 Rungtiwa Phookamsak Kevin D.Hyde +89 位作者 Rajesh Jeewon D.Jayarama Bhat E.B.Gareth Jones Sajeewa S.N.Maharachchikumbura Olivier Raspe Samantha C.Karunarathna Dhanushka N.Wanasinghe Sinang Hongsanan Mingkwan Doilom Danushka S.Tennakoon Alexandre R.Machado Andre L.Firmino Aniket Ghosh Anuruddha Karunarathna Armin Mesic Arun Kumar Dutta Benjarong Thongbai Bandarupalli Devadatha Chada Norphanphoun Chanokned Senwanna Deping Wei Dhandevi Pem Frank Kwekucher Ackah Gen-Nuo Wang Hong-Bo Jiang Hugo Madrid Hyang Burm Lee Ishani D.Goonasekara Ishara S.Manawasinghe Ivana Kusan Josep Cano Josepa Gene Junfu Li Kanad Das Krishnendu Acharya K.N.Anil Raj K.P.Deepna Latha K.W.Thilini Chethana Mao-Qiang He Margarita Duenas Margita Jadan Maria P.Martin Milan C.Samarakoon Monika C.Dayarathne Mubashar Raza Myung Soo Park M.Teresa Telleria Napalai Chaiwan Neven Matocec Nimali ide Silva Olinto L.Pereira Paras Nath Singh Patinjareveettil Manimohan Priyanka Uniyal Qiu-Ju Shang Rajendra P.Bhatt Rekhani H.Perera Renato Lucio Mendes Alvarenga Sandra Nogal-Prata Sanjay K.Singh Santhiti Vadthanarat Seung-Yoon Oh Shi-Ke Huang Shiwali Rana Sirinapa Konta Soumitra Paloi Subashini C.Jayasiri Sun Jeong Jeon Tahir Mehmood Tatiana Baptista Gibertoni Thuong T.T.Nguyen Upendra Singh Vinodhini Thiyagaraja V.Venkateswara Sarma Wei Dong Xian-Dong Yu Yong-Zhong Lu Young Woon Lim Yun Chen Zdenko Tkalcec Zhi-Feng Zhang Zong-Long Luo Dinushani A.Daranagama Kasun M.Thambugala Saowaluck Tibpromma Erio Camporesi Timur S.Bulgakov Asha J.Dissanayake Indunil C.Senanayake D 《Fungal Diversity》 SCIE 2019年第2期1-273,共273页
This article is the ninth in the series of Fungal Diversity Notes,where 107 taxa distributed in three phyla,nine classes,31 orders and 57 families are described and illustrated.Taxa described in the present study incl... This article is the ninth in the series of Fungal Diversity Notes,where 107 taxa distributed in three phyla,nine classes,31 orders and 57 families are described and illustrated.Taxa described in the present study include 12 new genera,74 new species,three new combinations,two reference specimens,a re-circumscription of the epitype,and 15 records of sexualasexual morph connections,new hosts and new geographical distributions.Twelve new genera comprise Brunneofusispora,Brunneomurispora,Liua,Lonicericola,Neoeutypella,Paratrimmatostroma,Parazalerion,Proliferophorum,Pseudoastrosphaeriellopsis,Septomelanconiella,Velebitea and Vicosamyces.Seventy-four new species are Agaricus memnonius,A.langensis,Aleurodiscus patagonicus,Amanita flavoalba,A.subtropicana,Amphisphaeria mangrovei,Baorangia major,Bartalinia kunmingensis,Brunneofusispora sinensis,Brunneomurispora lonicerae,Capronia camelliaeyunnanensis,Clavulina thindii,Coniochaeta simbalensis,Conlarium thailandense,Coprinus trigonosporus,Liua muriformis,Cyphellophora filicis,Cytospora ulmicola,Dacrymyces invisibilis,Dictyocheirospora metroxylonis,Distoseptispora thysanolaenae,Emericellopsis koreana,Galiicola baoshanensis,Hygrocybe lucida,Hypoxylon teeravasati,Hyweljonesia indica,Keissleriella caraganae,Lactarius olivaceopallidus,Lactifluus midnapurensis,Lembosia brigadeirensis,Leptosphaeria urticae,Lonicericola hyaloseptispora,Lophiotrema mucilaginosis,Marasmiellus bicoloripes,Marasmius indojasminodorus,Micropeltis phetchaburiensis,Mucor orantomantidis,Murilentithecium lonicerae,Neobambusicola brunnea,Neoeutypella baoshanensis,Neoroussoella heveae,Neosetophoma lonicerae,Ophiobolus malleolus,Parabambusicola thysanolaenae,Paratrimmatostroma kunmingensis,Parazalerion indica,Penicillium dokdoense,Peroneutypa mangrovei,Phaeosphaeria cycadis,Phanerochaete australosanguinea,Plectosphaerella kunmingensis,Plenodomus artemisiae,P.lijiangensis,Proliferophorum thailandicum,Pseudoastrosphaeriellopsis kaveriana,Pseudohelicomyces menglunicus,Pseudoplagiostoma mangiferae,Robillarda mangif 展开更多
关键词 86 new taxa AGARICOMYCETES ASCOMYCOTA BASIDIOMYCOTA Dacrymycetes DOTHIDEOMYCETES Eurotiomycetes LECANOROMYCETES Leotiomycetes Mucoromycetes Mucoromycota Pezizomycetes SORDARIOMYCETES Taxonomy
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地面和埋置爆炸土中地冲击作用分区数值模拟及试验研究 被引量:7
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作者 刘琦 翟超辰 +2 位作者 张跃飞 曲建波 吴祥云 《爆炸与冲击》 EI CAS CSCD 北大核心 2022年第8期1-19,共19页
为研究爆炸条件下土中应力波的时空分布,基于黄土中接触爆炸和半埋爆炸试验,验证了ANSYS/AUTODYN软件建立的计算模型,并在此基础上开展了土中爆炸地冲击效应研究。结果表明:随着土介质深度的增加,感生地冲击峰值减小,而直接地冲击峰值增... 为研究爆炸条件下土中应力波的时空分布,基于黄土中接触爆炸和半埋爆炸试验,验证了ANSYS/AUTODYN软件建立的计算模型,并在此基础上开展了土中爆炸地冲击效应研究。结果表明:随着土介质深度的增加,感生地冲击峰值减小,而直接地冲击峰值增大,最终,压力和竖向应力时程曲线中的2个峰值减少为1个峰值,据此特征可将土中应力波场分为3个区域,即地表区、近地表区和中心区;当装药比例埋深为−0.05~0.075 m/kg^(1/3)时,随着装药比例埋深的增大,中心区迅速扩大,地表区迅速缩小,近地表区逐渐扩大;当装药比例埋深为0.1~0.4 m/kg^(1/3)时,地冲击作用区的分布趋于稳定;爆炸耦合进入空气和土介质中的动能受炸药类型影响,但在一定范围内,地冲击作用区角度与地面空气冲击波超压冲量和直接地冲击应力冲量之比呈线性相关关系。 展开更多
关键词 地面爆炸 埋置爆炸 直接地冲击 感生地冲击 地冲击作用分区
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Biological, clinical and epidemiological features of COVID-19, SARS and MERS and AutoDock simulation of ACE2 被引量:7
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作者 Xue-Yan Zhang Hao-Jie Huang +4 位作者 Dong-Lin Zhuang Moussa ide Nasser Ming-Hua Yang Ping Zhu Ming-Yi Zhao 《Infectious Diseases of Poverty》 SCIE 2020年第4期10-20,共11页
Background:The outbreak of coronavirus disease 2019(COVID-19)has caused a public catastrophe and global concern.The main symptoms of COVID-19 are fever,cough,myalgia,fatigue and lower respiratory tract infection signs... Background:The outbreak of coronavirus disease 2019(COVID-19)has caused a public catastrophe and global concern.The main symptoms of COVID-19 are fever,cough,myalgia,fatigue and lower respiratory tract infection signs.Almost all populations are susceptible to the virus,and thebasic reproduction number(R0)is 2.8-3.9.The fight against COVID-19 should have two aspects:one is the treatment of infected patients,and the other is the mobilization of the society to avoid the spread of the virus.The treatment of patients includes supportive treatment,antiviral treatment,and oxygen therapy.For patients with severe acute respiratory distress syndrome(ARDS),extracorporeal membrane oxygenation(ECMO)and circulatory support are recommended.Plasma therapy and traditional Chinese medicine have also achieved good outcomes.This review is intended to summarize the research on this new coronavirus,to analyze the similarities and differences between COVID-19 and previous outbreaks of severe acute respiratory syndrome(SARS)and Middle East respiratory syndrome(MERS)and to provide guidance regarding new methods of prevention,diagnosis and clinical treatment based on autodock simulations.Methods:This review compares the multifaceted characteristics of the three coronaviruses including COVID-19,SARS and MERS.Our researchers take the COVID-19,SARS,and MERS as key words and search literatures in the Pubmed database.We compare them horizontally and vertically which respectively means concluding the individual characteristics of each coronavirus and comparing the similarities and differences between the three coronaviruses.Results:We searched for studies on each outbreak and their solutions and found that the main biological differences among SARS-CoV-2,SARS-CoV and MERS-CoV are in ORF1a and the sequence of gene spike coding protein-S.We also found that the types and severity of clinical symptoms vary,which means that the diagnosis and nursing measures also require differentiation.In addition to the common route of transmission including airbo 展开更多
关键词 COVID-19 CORONAVIRUS SARS MERS AUTODOCK
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Carcinosarcoma of the liver with mesenchymal differentiation 被引量:6
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作者 Shinichi Sumiyoshi Masataka Kikuyama +4 位作者 Yuji Matsubayashi Fujito Kageyama Yoshihiro ide Yoshimasa Kobayashi Hirotoshi Nakamura 《World Journal of Gastroenterology》 SCIE CAS CSCD 2007年第5期809-812,共4页
We report an extremely rare case where a mesenchymal differentiation, especially embryonal sarcoma, was demonstrated in cholangiocarcinoma. At autopsy, a yellowish-white tumor (15 cm× 12 cm) was found in the ri... We report an extremely rare case where a mesenchymal differentiation, especially embryonal sarcoma, was demonstrated in cholangiocarcinoma. At autopsy, a yellowish-white tumor (15 cm× 12 cm) was found in the right hepatic lobe, and there were several daughter nodules in both hepatic lobes. Histologically, most of the main tumor and all of the daughter nodules examined showed sarcomatous changes (spindle cells, pleomorphic ceils and hyalization). Histologic examination of a part of the main tumor disclosed a focus of adenocarcinoma within the tumor. The frequent transitions between the adenocarcinomatous areas and the sarcomatous areas suggested that sarcomatous transformation occurred in the cholangiocarcinoma and then spread rapidly. Immunohistochemically, the adenocarcinomatous elements were positive for cytokeratin, carcinoembryonic antigen (CEA) and epithelial membrane antigen, and negative in the sarcomatous cells. Vimentin was positive only in the sarcomatous elements. The findings of the present case support the view that carcinosarcomas represent carcinomas that develop sarcomatous elements via metaplasia of the epithelial element. 展开更多
关键词 CHOLANGIOCARCINOMA CARCINOSARCOMA Mesenchymal differentiation
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Points regarding cell transplantation for the treatment of spinal cord injury 被引量:6
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作者 Chizuka ide Kenji Kanekiyo 《Neural Regeneration Research》 SCIE CAS CSCD 2016年第7期1046-1049,共4页
Transplantation of somatic cells,including bone marrow stromal cells(BMSCs),bone marrow mononuclear cells(BMNCs),and choroid plexus epithelial cells(CPECs),enhances the outgrowth of regenerating axons and promot... Transplantation of somatic cells,including bone marrow stromal cells(BMSCs),bone marrow mononuclear cells(BMNCs),and choroid plexus epithelial cells(CPECs),enhances the outgrowth of regenerating axons and promotes locomotor improvements.They are not integrated into the host spinal cord,but disappear within 2-3 weeks after transplantation.Regenerating axons extend at the spinal cord lesion through the astrocyte-devoid area that is filled with connective tissue matrices.Regenerating axons have characteristics of peripheral nerves:they are associated with Schwann cells,and embedded in connective tissue matrices.It has been suggested that neurotrophic factors secreted from BMSCs and CPECs promote “intrinsic” ability of the spinal cord to regenerate.Transplanted Schwann cells survive long-term,and are integrated into the host spinal cord,serving as an effective scaffold for the outgrowth of regenerating axons in the spinal cord.The disadvantage that axons are blocked to extend through the glial scar at the border of the lesion is overcome.Schwann cells have been approved for clinical applications.Neural stem/progenitor cells(NSPCs) survive long-term,proliferate,and differentiate into glial cells and/or neurons after transplantation.No method is available at present to manipulate and control the behaviors of NPSCs to allow them to appropriately integrate into the host spinal cord.NPSP transplantation is not necessarily effective for locomotor improvement. 展开更多
关键词 Schwann progenitor glial astrocyte neurotrophic differentiate scaffold connective survive proliferate
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Pancreatitis after endoscopic retrograde cholangiopancreatography:A narrative review 被引量:6
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作者 Igor Braga Ribeiro Epifanio Silvino do Monte Junior +10 位作者 Antonio Afonso Miranda Neto Igor Mendonça Proença Diogo Turiani Hourneaux de Moura Mauricio Kazuyoshi Minata Edson ide Marcos Eduardo Lera dos Santos Gustavo de Oliveira Luz Sergio Eiji Matuguma Spencer Cheng Renato Baracat Eduardo Guimarães Hourneaux de Moura 《World Journal of Gastroenterology》 SCIE CAS 2021年第20期2495-2506,共12页
Acute post-endoscopic retrograde cholangiopancreatography pancreatitis(PEP)is a feared and potentially fatal complication that can be as high as up to 30%in high-risk patients.Pre-examination measures,during the exami... Acute post-endoscopic retrograde cholangiopancreatography pancreatitis(PEP)is a feared and potentially fatal complication that can be as high as up to 30%in high-risk patients.Pre-examination measures,during the examination and after the examination are the key to technical and clinical success with a decrease in adverse events.Several studies have debated on the subject,however,numerous topics remain controversial,such as the effectiveness of prophylactic medications and the amylase dosage time.This review was designed to provide an update on the current scientific evidence regarding PEP available in the literature. 展开更多
关键词 Endoscopic retrograde cholangiopancreatography Pan-creatitis Postendoscopic retrograde cholangiopancreatography pancreatitis Adverse events PANCREATITIS PREVENTION
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Fungal diversity notes 1277-1386:taxonomic and phylogenetic contributions to fungal taxa 被引量:6
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作者 Hai-Sheng Yuan Xu Lu +88 位作者 Yu-Cheng Dai Kevin D.Hyde Yu-He Kan Ivana Kušan Shuang-Hui He Ning-Guo Liu V.Venkateswara Sarma Chang-Lin Zhao Bao-Kai Cui Nousheen Yousaf Guangyu Sun Shu-Yan Liu Fang Wu Chuan-Gen Lin Monika C.Dayarathne Tatiana Baptista Gibertoni Lucas B.Conceição Roberto Garibay-Orijel Margarita Villegas-Ríos Rodolfo Salas-Lizana Tie-Zheng Wei Jun-Zhi Qiu Ze-Fen Yu Rungtiwa Phookamsak Ming Zeng Soumitra Paloi Dan-Feng Bao Pranami DAbeywickrama De-Ping Wei Jing Yang Ishara S.Manawasinghe Dulanjalee Harishchandra Rashika S.Brahmanage Nimali ide Silva Danushka S.Tennakoon Anuruddha Karunarathna Yusufjon Gafforov Dhandevi Pem Sheng-Nan Zhang AndréL.C.Mde Azevedo Santiago Jadson Diogo Pereira Bezerra Bálint Dima Krishnendu Acharya Julieta Alvarez-Manjarrez Ali H.Bahkali Vinod K.Bhatt Tor Erik Brandrud Timur S.Bulgakov E.Camporesi Ting Cao Yu-Xi Chen Yuan-Yuan Chen Bandarupalli Devadatha Abdallah M.Elgorban Long-Fei Fan Xing Du Liu Gao Camila Melo Gonçalves Luis F.P.Gusmão Naruemon Huanraluek Margita Jadan Ruvishika S.Jayawardena Abdul Nasir Khalid Ewald Langer Diogo X.Lima Nelson Correia de Lima-Júnior Carla Rejane Sousa de Lira Jian-Kui(Jack)Liu Shun Liu Saisamorn Lumyong Zong-Long Luo Neven Matočec M.Niranjan JoséRibamar Costa Oliveira-Filho Viktor Papp Eduardo Pérez-Pazos Alan J.L.Phillips Peng-Lei Qiu Yihua Ren Rafael F.Castañeda Ruiz Kamal C.Semwal Karl Soop Carlos A.Fde Souza Cristina Maria Souza-Motta Li-Hua Sun Meng-Le Xie Yi-Jian Yao Qi Zhao Li-Wei Zhou 《Fungal Diversity》 SCIE 2020年第5期1-266,共266页
This is the twelfth contribution to the Fungal Diversity Notes series on fungal taxonomy,based on materials collected from many countries which were examined and described using the methods of morphology,anatomy,and s... This is the twelfth contribution to the Fungal Diversity Notes series on fungal taxonomy,based on materials collected from many countries which were examined and described using the methods of morphology,anatomy,and strain culture,combined with DNA sequence analyses.110 taxa are described and illustrated,including five new genera,92 new species,eight new combinations and other taxonomic contributions(one new sequenced species,one new host and three new records)which are accommodated in 40 families and 1 incertae sedis in Dothideomycetes.The new genera are Amyloceraceomyces,Catenuliconidia,Hansenopezia,Ionopezia and Magnopulchromyces.The new species are Amyloceraceomyces angustisporus,Amylocorticium ellipsosporum,Arthrinium sorghi,Catenuliconidia uniseptata,Clavulina sphaeropedunculata,Colletotrichum parthenocissicola,Coniothyrium triseptatum,Cortinarius indorusseus,C.paurigarhwalensis,C.sinensis,C.subsanguineus,C.xiaojinensis,Diaporthe pimpinel-lae,Dictyosporella guizhouensis,Diplodia torilicola,Fuscoporia marquesiana,F.semiarida,Hansenopezia decora,Helicoarcta-tus thailandicus,Hirsutella hongheensis,Humidicutis brunneovinacea,Lentaria gossypina,L.variabilis,Lycoperdon lahorense,L.pseudocurtisii,Magnopulchromyces scorpiophorus,Moelleriella gracilispora,Neodevriesia manglicola,Neodidymelliopsis salvia,N.urticae,Neoroussoella magnoliae,Neottiella gigaspora,Ophiosphaerella chiangraiensis,Phaeotremella yunnanensis,Podosphaera yulii,Rigidoporus juniperinus,Rhodofomitopsis pseudofeei,Russula benghalensis,Scleroramularia vermispora,Scytinopogon minisporus,Sporormurispora paulsenii,Thaxteriellopsis obliqus,Tomentella asiae-orientalis,T.atrobadia,T.atrocastanea,T.aureomarginata,T.brevis,T.brunneoflava,T.brunneogrisea,T.capitatocystidiata,T.changbaiensis,T.citri-nocystidiata,T.coffeae,T.conclusa,T.cystidiata,T.dimidiata,T.duplexa,T.efibulata,T.efibulis,T.farinosa,T.flavidobadia,T.fuscocrustosa,T.fuscofarinosa,T.fuscogranulosa,T.fuscopelliculosa,T.globospora,T.gloeocystidiata,T.griseocastanea,T.griseofusca,T.griseomarginata 展开更多
关键词 110 taxa AGARICOMYCETES ASCOMYCOTA BASIDIOMYCOTA Mucoromycota New combinations New genera New species Phylogeny Taxonomy
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The Faces of Fungi database:fungal names linked with morphology,phylogeny and human impacts 被引量:5
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作者 Subashini C.Jayasiri Kevin D.Hyde +53 位作者 Hiran A.Ariyawansa Jayarama Bhat Bart Buyck Lei Cai Yu-Cheng Dai Kamel A.Abd-Elsalam Damien Ertz Iman Hidayat Rajesh Jeewon E.B.Gareth Jones Ali H.Bahkali Samantha C.Karunarathna Jian-Kui Liu J.Jennifer Luangsa-ard H.Thorsten Lumbsch Sajeewa S.N.Maharachchikumbura Eric H.C.McKenzie Jean-Marc Moncalvo Masoomeh Ghobad-Nejhad Henrik Nilsson Ka-Lai Pang Olinto L.Pereira Alan J.L.Phillips Olivier Raspé Adam W.Rollins Andrea I.Romero Javier Etayo Faruk Selçuk Steven L.Stephenson Satinee Suetrong Joanne E.Taylor Clement K.M.Tsui Alfredo Vizzini Mohamed A.Abdel-Wahab Ting-Chi Wen Saranyaphat Boonmee Dong Qin Dai Dinushani A.Daranagama Asha J.Dissanayake Anusha H.Ekanayaka S.C.Fryar Sinang Hongsanan Ruvishika S.Jayawardena Wen-Jing Li Rekhani H.Perera R.Phookamsak Nimali ide Silva Kasun M.T.hambugala Qing Tian Nalin N.Wijayawardene Rui-Lin Zhao Qi Zhao Ji-Chuan Kang Itthayakorn Promputtha 《Fungal Diversity》 SCIE 2015年第5期3-18,共16页
Taxonomic names are key links between various databases that store information on different organisms.Several global fungal nomenclural and taxonomic databases(notably Index Fungorum,Species Fungorum and MycoBank)can ... Taxonomic names are key links between various databases that store information on different organisms.Several global fungal nomenclural and taxonomic databases(notably Index Fungorum,Species Fungorum and MycoBank)can be sourced to find taxonomic details about fungi,while DNA sequence data can be sourced from NCBI,EBI and UNITE databases.Although the sequence data may be linked to a name,the quality of the metadata is variable and generally there is no corresponding link to images,descriptions or herbarium material.There is generally no way to establish the accuracy of the names in these genomic databases,other than whether the submission is from a reputable source.To tackle this problem,a new database(FacesofFungi),accessible at www.facesoffungi.org(FoF)has been established.This fungal database allows deposition of taxonomic data,phenotypic details and other useful data,which will enhance our current taxonomic understanding and ultimately enable mycologists to gain better and updated insights into the current fungal classification system.In addition,the database will also allow access to comprehensive metadata including descriptions of voucher and type specimens.This database is user-friendly,providing links and easy access between taxonomic ranks,with the classification system based primarily on molecular data(from the literature and via updated web-based phylogenetic trees),and to a lesser extent on morphological data when molecular data are unavailable.In FoF species are not only linked to the closest phylogenetic representatives,but also relevant data is provided,wherever available,on various applied aspects,such as ecological,industrial,quarantine and chemical uses.The data include the three main fungal groups(Ascomycota,Basidiomycota,Basal fungi)and fungus-like organisms.The FoF webpage is an output funded by the Mushroom Research Foundation which is an NGO with seven directors with mycological expertise.The webpage has 76 curators,and with the help of these specialists,FoF will provide an updated natural c 展开更多
关键词 Classification DATABASE Faces of Fungi FUNGI PHYLOGENY Taxonomy
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地冲击作用下基于泡沫混凝土的地下结构柔性防护 被引量:5
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作者 周宏元 李永胜 +3 位作者 王小娟 杜建国 余尚江 陈荣华 《北京工业大学学报》 CAS CSCD 北大核心 2020年第6期533-539,共7页
与传统的结构加固刚性防护不同,本研究通过试验研究地冲击作用下,泡沫混凝土防护层对地下结构柔性防护的效果.研究表明,防护效果存在不同情况:当泡沫混凝土防护层通过动态土-结构相互作用减少的能量输入与其压缩吸收的能量之和大于因其... 与传统的结构加固刚性防护不同,本研究通过试验研究地冲击作用下,泡沫混凝土防护层对地下结构柔性防护的效果.研究表明,防护效果存在不同情况:当泡沫混凝土防护层通过动态土-结构相互作用减少的能量输入与其压缩吸收的能量之和大于因其厚度导致爆距变短引入的能量时,防护有效;反之,防护无效,甚至出现负效果.使用泡沫混凝土防护层对地下结构进行柔性防护时,需综合考虑地冲击的载荷特征、多孔固体防护层的压缩强度和厚度等多种因素,使由于动态土-结构相互作用减少的能量输入与压缩吸能之和大于由保护层厚度引入的入射能量,保证防护有效. 展开更多
关键词 地冲击 地下结构 柔性防护 泡沫混凝土 结构防护 动态土-结构相互作用
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步枪弹高速冲击下防弹头盔功能梯度泡沫内衬的防护性能 被引量:5
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作者 郑秋杰 郭迎福 +1 位作者 蔡志华 张磊 《兵工学报》 EI CAS CSCD 北大核心 2021年第6期1275-1282,共8页
为开发能够抵御步枪弹的新型防弹头盔,研究功能梯度泡沫内衬在防弹头盔中的防护作用,通过材料压缩试验获得30 kg/m3、45 kg/m3和60 kg/m33种不同密度发泡聚丙烯泡沫的力学性能,开展枪弹高速冲击功能梯度泡沫内衬防护下的假人颅脑试验并... 为开发能够抵御步枪弹的新型防弹头盔,研究功能梯度泡沫内衬在防弹头盔中的防护作用,通过材料压缩试验获得30 kg/m3、45 kg/m3和60 kg/m33种不同密度发泡聚丙烯泡沫的力学性能,开展枪弹高速冲击功能梯度泡沫内衬防护下的假人颅脑试验并进行仿真研究。利用人颅脑试验和数值模拟计算,分析均质泡沫、正负梯度、凹凸梯度组合防护下的颅脑生物力学响应,以及泡沫局部和整体的能量吸收。结果表明:分层泡沫的能量吸收主要集中在靠近头部的支撑层,占泡沫吸收总能量的62.33%;平均密度相同时,梯度结构相较均质结构防护效果更显著,且负梯度优于正梯度;凸梯度结构在降低整体质量的同时,较其他梯度结构至少增加19.57%的能量吸收。 展开更多
关键词 防弹头盔 枪弹 功能梯度泡沫 高速冲击 能量吸收 防护性能
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