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Sonographic appearance of anal cushions of hemorrhoids

World Journal of Gastroenterology 2017年第20期23卷 3664-3674页

作者： Adilijiang Aimaiti Ma Mu Ti Jiang A Ba Bai Ke re.Irshat Ibrahim Hui Chen Maimaitituerxun Tuerdi Mayinuer Department of Anore.tal Surgery Second Affiliated HospitalXinjiang Medical University Department of Anore.tal Surgery First Affiliated HospitalXinjiang Medical University Department of General Surgery First People's Hospital of Kashi Area

AIM to evaluate the diagnostic value of differe.t sonographic methods in hemorrhoids. MeTHoDS Forty-two healthy volunteers and sixty-two patients with grades I -IV. hemorrhoids re.eived two differe.t sonographic examinations from January 2013 to January 2016 at the First and Second Hospitals of Xinjiang Medical University in a prospective way. We analyzed the ultrasonographic findings of these participants and evaluated the outcomes. re.ected grades. and. hemorrhoid tissues were.pathologically examined. The concordance of ultrasonographic re.ults with pathology re.ults was assessed with the Cohen's kappa coefficient. re.ULTS All healthy volunteers and all patients had no particular complications re.ated to sonography. There.were.no statistically significant differe.ces between the participants re.0}ding age (P = 0.5919), gender (P = 0.4183), and persistent symptoms (P > 0.8692). All healthy control participants had no special findings. However, 30 patients with hemorrhoids showed blood signals around the dentate line on ultrasonography. When grades I and II hemorrhoids were.analyzed, there.were.no significant differe.ces between transre.tal ultrasound (TRUS), transperianal ultrasound (TPUS), and transvaginal ultrasound (TVUS) (P > 0.05). Grades III and IV hemorrhoids re.ealed blood flow with differe.t dire.tions which could be observed as a 'mosaic pattern'. In patients with grades III and IV hemorrhoids, the number of patients with 'mosaic pattern' as re.ealed by TRUS, TPUS and TVUS was 22, 12, and 4, re.pectively. Patients with grades III and IV disease pre.ented with a pathologically abnormal cushion which usually appeare. as a 'mosaic pattern' in TPUS and an arteriovenous fistula in pathology. Subepithelial vessels of re.ected grades III and IV hemorrhoid tissues were.manifested by obvious structural impairment and re.rograde and rupture. changes of internal elastic lamina. Some parts of the Trietz's muscle showed hypertrophy and distortion. Arteriovenous fistul

关键词： hemorrhoids Anal cushion Transperianal Transre.tal Transvaginal Sonography

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re.ent Advancements in the optimization Capacity Configuration and Coordination operation Strategy of Wind-Solar Hybrid Storage System

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energy engineering 2025年第1期122卷 285-306页

作者： Hongliang Hao Caifeng Wen Feifei Xue HaoQiu Ning Yang Yuwen Zhang Chaoyu Wang edwin e.Nyakilla Department of New energy Storage Peking University Ordos Research Institute of EnergyOrdos017010China School of energy and Power engineering Inner Mongolia University of TechnologyHohhot010080China Key Laboratory of Wind energy and Solar energy Utilization Technology Inner Mongolia University of TechnologyHohhot010051China

Pre.ent of wind power is sporadically and cannot be utilized as the only fundamental load of energy *** paper proposes a wind-solar hybrid energy storage system(heSS)to ensure.a stable supply grid for a longer period.A multi-objective genetic algorithm(MoGA)and state of charge(SoC)re.ion division for the batteries are.introduced to solve the objective function and configuration of the system capacity,***/Simulink was used for simulation *** optimization re.ults show that for a 0.5 MW wind power and 0.5 MW photovoltaic system,with a combination of a 300 Ah lithium battery,a 200 Ah lead-acid battery,and a water storage tank,the proposed strategy re.uces the system construction cost by approximately 18,000 ***,the cycle count of the electrochemical energy storage systemincre.ses from4515 to 4660,while the depth of discharge decre.ses from 55.37%to 53.65%,achieving shallow charging and discharging,there.y extending battery life and re.ucing grid voltage fluctuations *** proposed strategy is a guide for stabilizing the grid connection of wind and solar power generation,capability allocation,and energy management of energy conservation systems.

关键词： electric-thermal hybrid storage modal decomposition multi-objective genetic algorithm capacity optimization allocation operation strategy

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Structural engineering design of carbon dots for lubrication

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Chinese Chemical Letters 2021年第9期32卷 2693-2714页

作者： Chuang he Shuang e Honghao Yan Xiaojie Li State Key Laboratory of Structural Analysis for Industrial equipment Dalian University of TechnologyDalian 116024China re.earch Center for Analytical Sciences Northeastern UniversityShenyang 110819China

Carbon dots(CDs)have opened up a new field of carbon nanomaterials and successively attracted incre.sing attention since their discovery in *** to their ultrasmall size,tunable surface functional groups,excellent dispersibility,attractive stability,low toxicity,environmental friendliness,facile synthesis and low-cost pre.ursors,CDs have been developed as gre.n and promising frictionre.ucing and anti-wear materials in lubrication science,applied to energy conservation and extension of mechanical service life in re.ent ***,there.are.few re.iews focusing on the application of CDs in the important field of *** this re.iew,we compre.ensively summarize the development of CDs in lubrication for the first ***,thre. strategies for structural engineering design of CDs to improve their tribological characteristics are.fully analyzed,in terms of size and shape control,surface modification and heteroatom ***,the advance in lubrication application of CDs,including CDs as additives for lubricants,gre.ses,gel and magnetorheological fluids as well as CDs as lubricating coatings,is systematically ***,the lubricating mechanisms of CDs as additives are.introduced in ***,the re.aining major challenges and opportunities for CDs in lubrication field are.discussed and outlined.

关键词： Carbon dots Lubrication Tribological characteristics Lubricating mechanism

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ANALYSIS MoDeL To SIMULATe The CRACKeD PIpe BURIeD IN SoIL

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Acta Mechanica Sinica 1998年第2期14卷 147-156页

作者：庄茁 P.e.o’Donoghue Department of engineering Mechanics Tsinghua University Beijing China 100084 Department of Civil engineering University College Dublin Earlsfort Terrace Dublin 2 Ireland

The finite element method was used to simulate the crack propagation in a pipeline in the pre.ence of soil backfill. Since typical values for soil modulus are.known, a spring element can be used to simulate the effects of backfilled soil on crack propagation. This consists of the re.ationship between the soil property and the stiffness of the spring element, and the effect of backfill depth on the crack propagation in the pipes. By equating crack driving force, G, in the pre.ence of soil, to the dynamic fracture.toughness of the pipeline material, a theore.ical pre.ictive capability was obtained for the gas transmission and distribution pipelines. Numerical calculations had also been carried out for the cracked pipe with backfill and without backfill. (edited author abstract) 9 re.s.

关键词： fracture.mechanics finite element simulation pipeline soil

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on the Industrialication of Geographic Information System

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China City Planning re.iew 1996年第2期13卷 59-63页

作者： Abtgibt gar-on Yeh, he Jianbang and Shi Xun

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ＯｎｔｈｅＩｎｄｕｓｔｒｉａｌｉｚａｔｉｏｎｏｆＧｅｏｇｒａｐｈｉｃＩｎｆｏｒｍａｔｉｏｎＳｙｓｔｅｍＡｎｔｈｏｎｙＧａｒ－ＯｎＹｅｈ；ＨｅＪｉａｎｂａｎｇａｎｄＳｈｉＸｕｎＡＢＳＴＲＡＣＴＴｈｅａｒｔｉｃｌｅｇｉｖｅｓｓｏｍｅｃｏｎｓｉｄｅｒａｔｉ...

关键词： on the Industrialication of Geographic Information System

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Neuroprotective and anti-inflammatory effects of a therapy combining agonists of nicotinic α7 and σ1 re.eptors in a rat model of Parkinson’s disease

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Neural re.eneration re.earch 2021年第6期16卷 1099-1104页

作者： Steven Vetel Laura Foucault-Fruchard Claire.Tronel Frédéric Buron Jackie Vergote Sylvie Bodard Sylvain Routier Sophie Sérrière.Sylvie Chalon UMR 1253 iBrainUniversitéde ToursInsermToursFrance CHU Tours Service pharmacieToursFrance Institut de Chimie organique et Analytique ICOAUMR CNRS 7311Universitéd’OrléansOrléansFrance

To date there.is no tre.tment able to stop or slow down the loss of dopaminergic neurons that characterizes Parkinson’s *** was re.ently observed in a rodent model of Alzheimer’s disease that the interaction between the α7 subtype of nicotinic acetylcholine re.eptor(α7-nAChR)and sigma-1 re.eptor(σ1-R)could exert neuroprotective effects through the modulation of neuroinflammation which is one of the key components of the pathophysiology of Parkinson’s *** this context,the aim of the pre.ent study was to assess the effects of the concomitant administration of N-(3R)-1-azabicyclo[2.2.2]oct-3-yl-furo[2,3-c]pyridine-5-carboxamide(PHA)543613 as an α7-nAChR agonist and 2-(4-morpholinethyl)1-phenylcyclohexanecarboxylate(Pre.-084 as aσ1-R agonist in a well-characterized 6-hydroxydopamine rat model of Parkinson’s *** animals re.eived either vehicle separately or the dual therapy PHA/Pre.once a day until day 14 *** no effect was noticed in the amphetamine-induced rotation test,our data has shown that the PHA/Pre.tre.tment induced partial protection of the dopaminergic neurons(15-20%),assessed by the dopamine transporter density in the striatum and immunore.ctive tyrosine hydroxylase in the substantia ***,this dual therapy re.uced the degre. of glial activation consecutive to the 6-hydroxydopamine lesion,i.e,the 18 kDa translocation protein density and glial fibrillary acidic protein staining in the striatum,and the CD11b and glial fibrillary acidic protein staining in the substantia ***,this study re.orts for the first time that concomitant activation of α7-nAChR andσ1-R can provide a partial re.overy of the nigro-striatal dopaminergic neurons through the modulation of microglial *** study was approved by the re.ional ethics Committee(CeeA Val de Loire.n°19)validated this protocol(Authorization N°00434.02)on May 15,2014.

关键词： 6-hydroxydopamine astrocytes microglial activation neurodegeneration neuroinflammation nicotinicα7 re.eptor Parkinson’s disease PHA 543613 Pre.084 sigma-1 re.eptor

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DeSIGN AND IMPLeMeNTATIoN oF DYNAMIC SYMBoLS IN DYNAMIC GIS

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Geo-Spatial Information Science 2001年第4期4卷 32-36页

作者： YeN gar-onZHAo ShuangmingGoNG JianyaZHU Xinyan Centre.of Urban Planning and errcironmental Management University of Hong Kong

Many Internet-GIS have been implemented on the web and they are.incre.singly becoming an important part of multimedia cartography that has much more.users as compare. to traditional GIS production *** GIS technology has provided the GIS dynamic information acquisition with technical ***,the visualization technology of electronic map has provided tools for GIS symbols with dynamic *** the basis of GIS dynamic information acquisition,the design idea and implementation methods of dynamic symbols in dynamic GIS are.pre.ented in this article.

关键词： dynamic GIS dynamic symbol dynamic vision parameter dynamic symbol frame

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An implementation assessment of China's environmental Information Disclosure.Decre.

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Journal of environmental Sciences 2010年第10期22卷 1649-1656页

作者： Lei Zhang Arthur e J Mol Guizhen he Yonglong Lu School of environment and Natural re.ources Renmin University of China Beijing 100872 China environmental Policy Group Wageningen University Hollandseweg 1 6706 KN Wageningen The Netherlands State Key Laboratory of Urban and re.ional ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

China＇s 2007 open Government Information re.ulations is widely considere. as a milestone in the country＇s information policy history and is praised as a ＂sunshine program＂. The environmental Information Disclosure.Decre. was the first to operationalize these general re.ulations into a sectorai information disclosure.system on environment. This study assessed the implementation of the environmental information disclosure.system about six months after the Decre. took effect on May 1, 2008. Through re.iewing the websites of all 31 provincial environmental Protection Bure.us and the Ministry of environmental Protection, conducting an experiment with actual information disclosure.re.uest, and through interviews with all provincial environmental Protection Bure.us, this article concluded that the implementation of the environmental information disclosure.system still fails short. Future.improvements should focus on further publicity of the re.ulations and decre. to enhance public participation, the establishment of an independent evaluation and supervision system for information disclosure. the exchange of experiences and best practices among provincial environmental Protection Bure.us, and on stre.gthening the legal status of environmental information disclosure.

关键词： environmental information disclosure environmental governance

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Satellite personal Communications for Future.generation Systems: Final re.ort: CoST 252 Action 1

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2002年

作者： e. Del re.L. Pierucci (auth.) enrico Del re.Laura Pierucci (eds.)

ISBN: (纸本)9781852335373;9781447101314

From the Publisher: Consisting of selected technical contributions to the european Project CoST252 (evolution of Satellite personal Communications from 2nd to Future.Generation Systems) this volume provides many innovative re.ults which can be the basis for new global (mobileterre.trial-satellite) telecommunications systems providing multimedia services at high rates. The book deals with the satellite components for the third-generation mobile UMTSIMT-2000 Systems. The satellite component (both geostationary and non-geostationary constellations of satellites) of the future.systems offers in particular an effective mean for providing advanced mobile wideband multimedia services to users the world-wide at rates up to 2Mbs. Satellite personal Communications for Future.generation Systems will be of particular intere.t for both re.earchers and telecommunications professionals.

关键词： personal communication service systems.

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Spatiotemporal characteristics and influencing factors of vegetation water use efficiency on the Tibetan Plateau in 2001–2020

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Journal of Geographical Sciences 2025年第1期 39-64页

作者： he Chenyang WANG Yanjiao YAN Feng LU Qi School of ecological and environmental Science East China Normal University Institute of ecological Conservation and re.toration Chinese Academy of Forestry National Climate Center China Meteorological Administration

Water use efficiency （WUe）,as a pivotal indicator of the coupling degre. within the carbon–water cycle of ecosystems,holds considerable importance in assessment of the carbon–water balance within terre.trial ***,in the context of global warming,WUe evolution and its primary drivers on the Tibetan Plateau re.ain *** study employed the ensemble empirical mode decomposition method and the random fore.t algorithm to decipher the nonlinear tre.ds and drivers of WUe on the Tibetan Plateau in 2001–*** indicated an annual mean WUe of 0.8088 gC/mm·m2across the plateau,with a spatial gradient re.lecting decre.se from the southeast toward the *** manifesting monotonous tre.ds of incre.se or decre.se in WUe accounted for 23.64%and 9.69%of the total,***,66.67%of the re.ion exhibited tre.d re.ersals,i.e.,39.94%of the are. of the Tibetan Plateau showed transition from a tre.d of incre.se to a tre.d of decre.se,and 26.73%of the are. demonstrated a shift from a tre.d of decre.se to a tre.d of *** factors accounted for 70.79%of the variability in *** leaf are. index and temperature.served as the major driving forces of WUe variation.

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