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Multi.Agent Deep Q-Networks for Effi.i.nt Edge Federated Learni.g Communi.ati.ns i. Software-Defi.ed i.T

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Computers, Materi.ls & Conti.ua 2022年第5期71卷 3319-3335页

作者： Prohi. Tam sa Math Ahyoung Lee Seokhoon Ki. Department of Software Convergence Soonchunhyang UniversityAsan31538Korea Department of Computer Sci.nce Kennesaw State UniversityMariettaGA 30060USA Department of Computer Software Engi.eeri.g Soonchunhyang UniversityAsan31538Korea

Federated learni.g(FL)acti.ates di.tri.uted on-devi.e computati.n techni.ues to model a better algori.hm performance wi.h the i.teracti.n of local model updates and global model di.tri.uti.ns i. aggregati.n averagi.g ***,i. large-scale heterogeneous i.ternet of Thi.gs(i.T)cellular networks,massi.e multi.di.ensi.nal model update i.erati.ns and resource-constrai.ed computati.n are challengi.g aspects to be tackled *** paper i.troduces the system model of convergi.g softwaredefi.ed networki.g(SDN)and network functi.ns vi.tuali.ati.n(NFV)to enable devi.e/resource abstracti.ns and provi.e NFV-enabled edge FL(eFL)aggregati.n servers for advanci.g automati.n and ***-agent deep Q-networks(MADQNs)target to enforce a self-learni.g softwari.ati.n,opti.i.e resource allocati.n poli.i.s,and advocate computati.n offloadi.g *** gathered network condi.i.ns and resource states,the proposed agent ai.s to explore vari.us acti.ns for esti.ati.g expected longterm rewards i. a parti.ular state *** explorati.n phase,opti.al acti.ns for joi.t resource allocati.n and offloadi.g deci.i.ns i. di.ferent possi.le states are obtai.ed by maxi.um Q-value ***-based vi.tual network functi.ns(VNF)forwardi.g graph(VNFFG)i. orchestrated to map VNFs towards eFL aggregati.n server wi.h suffi.i.nt communi.ati.n and computati.n resources i. NFV i.frastructure(NFVi..The proposed scheme i.di.ates defi.i.nt allocati.n acti.ns,modi.i.s the VNF backup i.stances,and reallocates the vi.tual resource for exploi.ati.n *** neural network(DNN)i. used as a value functi.n approxi.ator,and epsi.ongreedy algori.hm balances explorati.n and *** scheme pri.ari.y consi.ers the cri.i.ali.i.s of FL model servi.es and congesti.n states to opti.i.e long-term *** results presented the outperformance of the proposed scheme over reference schemes i. terms of Quali.y of Servi.e(QoS)performance metri.s,i.cludi.g packet

关键词： Deep Q-networks federated learni.g network functi.ns vi.tuali.ati.n quali.y of servi.e software-defi.ed networki.g

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石蒜种子萌发过程及生理研究

江西农业大学学报 2024年第3期46卷 682-690页

作者：萨日娜蔡军火游欣温婷姜雪茹魏绪英钟良涛江西农业大学园林与艺术学院江西南昌330045 江西财经大学艺术学院江西南昌330032

【目的】探究石蒜种子萌发过程中的形态与生理变化规律,为其优质种苗的繁育提供理论基础及高效繁殖技术。【方法】以成熟新鲜的石蒜种子为研究材料,在观测其萌发第0、7、14、21、28、35天形态变化的基础上,采用考马斯亮蓝G-250法、蒽酮... 详细信息

【目的】探究石蒜种子萌发过程中的形态与生理变化规律,为其优质种苗的繁育提供理论基础及高效繁殖技术。【方法】以成熟新鲜的石蒜种子为研究材料,在观测其萌发第0、7、14、21、28、35天形态变化的基础上,采用考马斯亮蓝G-250法、蒽酮比色法、酶联免疫法测定种子内的可溶性蛋白质、可溶性糖和淀粉、内源激素(ga_(3)、ABA、i.A、ZR)等内含物。【结果】(1)石蒜种子的萌发方式为子叶留土型,依据形态变化特征,可将其萌发过程划分为未萌发期(0 d)、露白期(7~14 d)、子叶伸长期(8~14 d)、根快速生长期(15~21 d)、分根期(22~28 d)和真叶形成期(29~35 d)6个时期,持续时长约35 d。(2)在种子萌发过程中,淀粉、可溶性蛋白、可溶性糖、内源ABA的含量及ga_(3)/ABA比值总体均呈“下降”趋势,i.A和ZR的含量却呈“上升”趋势,ga_(3)含量则“先降后升”;其中,子叶伸长期和根快速生长期是内源激素变化的拐点时期。(3)种子的萌发进程与ZR、i.A的含量变化呈极显著正相关,而与ga_(3)、ABA的含量变化则呈显著负相关。高含量的i.A和ZR、低含量的ABA和ga_(3)有利于胚乳内淀粉的水解,从而促进种子的萌发。【结论】石蒜种子的萌发是一个动态耗能过程,主要依赖胚乳内的淀粉和可溶性糖提供能量。同时,种子的萌发也受到内源激素ZR和i.A的正向调控及ga_(3)/ABA的负向调控。

关键词：石蒜种子萌发淀粉可溶性糖可溶性蛋白质内源激素

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Paleo-Mesoarchean sedi.entary record i. the Dharwar Craton,i.di.:i.pli.ati.ns for Archean ocean oxygenati.n

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Geosci.nce Fronti.rs 2024年第1期15卷 126-154页

作者： G.Harshi.ha C.Mani.yamba M.santosh Cheng-Xue Yang A.Keshav Kri.hna V.V.Sesha sai.i.Panduranga Reddy CSi.-Nati.nal Geophysi.al Research i.sti.ute(NGRi. Uppal RoadHyderabad 500007India Department of Geology Osmania UniversityHyderabad 500007India School of Earth Sci.nce and Resources China University of GeosciencesBeijing 100083China Department of Earth Sci.nce University of AdelaideAdelaide SA5005Australia Yonsei.Fronti.r Lab Yonsei UniversitySeoul 03722Republic of Korea Geologi.al Survey of i.di. State UnitNagpurIndia

The early Archean oceans were marked by si.ni.i.ant redox changes whi.h have subsequently shaped the Earth’s *** chemi.al sedi.ents of banded i.on and Manganese formati.ns provi.e i.portant geochemi.al proxi.s for these hi.tori.al shi.ts i. the redox condi.i.ns and to trace the anci.nt sedi.entati.n patterns and *** thi. study,we i.vesti.ate the proto-ore of the Archean Mn-formati.ns of the sandur,Chi.radurga and Shi.oga greenstone belts of Dharwar Craton of southern Peni.sular i.di.,whi.h i. geochemi.ally characteri.ed as quartz areni.es,Mn-areni.es,Fe-areni.es,Mn-argi.li.es and *** geochemi.al systemati.s suggest thei. deposi.i.n i. shallow to deeper shelf i. the Archean *** detri.al zi.con U-Pb systemati.s of Mn areni.es and argi.li.es i.di.ate thei. maxi.um deposi.i.nal age of 3230±52 Ma representi.g the oldest onset of sedi.entati.n duri.g the Paleo-Mesoarchean ti.eframe i. the Chi.radurga Group of Dharwar *** detri.al i.flux proxi.s suggest vari.ti.ns i. sedi.entati.n rates associ.ted wi.h the Archean transgressi.e-regressi.e cycles and fluctuati.g hydrodynami. condi.i.ns,together reflecti.g an i.creasi.g trend i. the contri.uti.ns of recycled sedi.ent from sandur to Chi.radurga and Shi.oga greenstone *** avai.able detri.al zi.con ages of the Mn areni.es and argi.li.es from these greenstone belts i.di.ate a~600 Ma prolonged peri.d of Mn deposi.i.n for whi.h hi.h-T hydrothermal flui.s from Archean mi.-oceani. ri.ges suppli.d the *** trace element composi.i.ns of the concordant detri.al zi.cons suggest 3.3-3.1 ga Dharwar basement TTG/grani.oi. source whi.h i. corroborated by the zi.con crystalli.ati.n temperatures of 690-820℃.The source-normali.edα-dose rates of the detri.al zi.cons si.ni.y greater degrees of sedi.ent transport and multi.cycle nature whi.h correspond to the earli.st epi.ode of crustal growth i. the i.di.n sub-conti.ent associ.ted wi.h the Mesoarchean Ur superconti.ent.T

关键词： Mn-areni.es-argi.li.es Dharwar Craton Zi.con U-Pb geochronology Passi.e margi. sedi.ents Ocean oxygenati.n

基于瞬态分析的桡骨远端骨折外固定支具结构优化设计

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医用生物力学 2022年第5期37卷 952-959页

作者：张静萨日娜嘎拉台内蒙古工业大学机械工程学院呼和浩特010051 内蒙古医科大学蒙医药学院呼和浩特010110

目的针对桡骨远端骨折外固定支具缺乏腕关节阶段性功能锻炼的问题,提出一种基于瞬态分析的外固定支具结构优化设计方法,为外固定支具结构设计提供理论参考依据。方法确定外固定支具固定、牵伸、活动3种工作模式,围绕牵伸、活动模式进行... 详细信息

目的针对桡骨远端骨折外固定支具缺乏腕关节阶段性功能锻炼的问题,提出一种基于瞬态分析的外固定支具结构优化设计方法,为外固定支具结构设计提供理论参考依据。方法确定外固定支具固定、牵伸、活动3种工作模式,围绕牵伸、活动模式进行瞬态动力学分析,以判断其在牵伸、活动载荷作用下应力、变形等变化。对外固定支具的重要尺寸进行灵敏度分析,筛选出关键尺寸,以此为设计变量,以质量、最大变形量为目标变量。采用正交试验法、模糊优化方法建立数学模型,使多目标问题变为单目标问题,进而通过遗传算法优化求解。结果所设计的外固定支具在牵伸、活动模式下均满足设计需求,且具有较强的刚性。经尺寸优化求解,优化后模型与原模型相比质量下降5%,最大变形减少8%。结论研究结果达到轻量化的目的,为桡骨远端骨折外固定支具改进设计和研究奠定基础。

关键词：桡骨远端外固定瞬态分析正交试验模糊优化

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中波传输技术在广播电视业务中的应用与探讨

Analysi. and opti.al synthesi. of si.gle loop spati.l mechani.ms

中国科技纵横 2023年第1期 77-79页

作者：萨嘎尼玛西藏自治区广播电视局阿里中波转播台西藏阿里 859000

中波传输技术由于其稳定性和高传输效率,已成为我国广播电视技术发展的一个重要组成部分.中波技术能够通过地波进行通信,具有很好的抗干扰性,能够为广大地区的用户提供高品质的广播电视节目,而中波技术则是目前国内无线网络覆盖的主要... 详细信息

中波传输技术由于其稳定性和高传输效率,已成为我国广播电视技术发展的一个重要组成部分.中波技术能够通过地波进行通信,具有很好的抗干扰性,能够为广大地区的用户提供高品质的广播电视节目,而中波技术则是目前国内无线网络覆盖的主要技术力量.根据多年的工作经验,对中波传输技术进行了较为详尽的分析,并对其在广播、电视服务方面的应用进行了讨论.

关键词：中波传输技术广播电视维护

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Journal of Zheji.ng Uni.ersi.y-Sci.nce A(Appli.d Physi.s & Engi.eeri.g) 2011年第9期12卷 665-679页

作者： Med Ami.e LARi.i.Lotfi.ROMDHANE sad ZEGHLOUL Laboratoi.e de Géni. Mécani.ue LAB-MA-05 Ecole Nationale d'Ingénieurs de Sousse i.sti.ut Ppri.e-UPR 3346 CNRS-Université de Poitiers-ENSMA Département Génie Mécanique et Systémes Complexes SP2MIBP30179 86962 Futuroscope France

i. thi. work, a systemati. approach i. presented to obtai. the i.put-output equati.ns of a si.gle loop 4-bar spati.l mechani.ms. The di.lyti. method along wi.h Denavi.-Hartenberg parameters can be used to obtai. these equati.ns effi.i.ntly. A geneti. algori.hm (ga) has been used to solve the problem of spati.l mechani.ms synthesi.. Two types of mechani.ms, e.g., RSCR and RSPC (R: revolute; S: spheri.al; C: cyli.dri.al; P: pri.mati.), have i.lustrated the appli.ati.n of the ga to solve the problem of functi.n generati.n and path generati.n. i. some cases, the ga method becomes trapped i. a local mi.i.um. A combi.ed ga-fuzzy logi. (ga-FL) method i. then used to i.prove the fi.al result. The results show that gas, combi.ed wi.h an adequate descri.ti.n of the mechani.m, are well sui.ed for spati.l mechani.m synthesi. problems and have nei.her di.i.ulti.s i.herent to the choi.e of the i.i.i.l feasi.le guess, nor a problem of convergence, as i. i. the case for determi.i.ti. methods.

关键词：空间机制基因算法模糊的逻辑(ga-FL ) 方法 Denevi.-Hartenberg 参数机制合成

Polycaprolactone (PCL) Chai.s Grafti.g on the Surface of Cellulose Nanocrystals (CNCs) duri.g <i.gt;i. Si.u</i.gt;Polymeri.ati.n of <i.gt;ε</i.gt;-Caprolactone at Room Temperature

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Materi.ls Sci.nces and Appli.ati.ns 2020年第11期11卷 744-756页

作者： Jérémy Astruc Patri.e Cousi. gaétan Laroche Mathi.u Robert saïd Elkoun Center of i.novati.e Technology and Eco-Desi.n (Ci.E) University of Sherbrooke Granby QC Canada Laboratoi.e d’i.géni.ri. de Surface Département de Génie des Mines de la Métallurgie et des Matériaux Centre de recherche sur les Matériaux avancés Pavillon Adrien-Pouliot University of Laval Québec QC Canada Centre de Recherche du CHU de Québec Hopital Saint-Francois d’Assise Québec QC Canada

Thi. work ai.ed at i.vesti.ati.g the feasi.i.i.y of surface modi.i.ati.n of cellulose nanocrystals (CNCs) usi.g i. si.u ri.g openi.g polymeri.ati.n of ε-caprolactone (ε-CL) at room temperature. Resi.ues of flax and mi.kweed (Asclepi.s syri.ca) stem fi.ers were used as a source of cellulose to obtai. and i.olate CNCs. The cati.ni. ri.g openi.g polymeri.ati.n (CROP) of the monomer ε-CL was used to covalently graft polycaprolactone (PCL) chai.s at the CNCs surface. Si.ver hexafluoroanti.onate (AgSbF6) was used i. combi.ati.n wi.h the extracted CNCs to i.i.i.te, at room temperature, the polymeri.ati.n and the grafti.g reacti.ns wi.h no other sti.ulus. Fouri.r-Transform i.fraRed (FTi.), X-ray Photoelectron Spectrometry (XPS), UV/vi.i.le absorpti.n and Gel Permeati.n Chromatography (GPC) analyses evi.enced the presence of PCL chai.s covalently grafted at CNCs surface, the formati.n of Ag(0) parti.les as well as low or moderate molecular wei.ht free PCL chai.s.

关键词： Cellulose Nanocrystals (CNCs) Si.ultaneous Polymeri.ati.n and Surface Grafti.g ε-Caprolactone Cati.ni. Ri.g Openi.g Polymeri.ati.n Room Temperature Si.ver Hexafluoroanti.onate

Phytochemi.al Analysi. and Contracti.e Effects of Aqueous and Hydroethanoli. Extracts of Anastati.a hi.rochunti.a L. (Brassi.aceae) on the i.olated Uterus of Mi.e

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Pharmacology & Pharmacy 2023年第8期14卷 252-270页

作者： Belem-Kabré Wendkouni.Lei.a Mari. Esther Ni.i.ma Mathi.u Odjo Blondi.e saïdath Maman Noura Oumarou Yaro Boubacar Kaboré Boukaré Somda gaëtan Donzéo Traoré Tata Kadi.tou Koala Moumouni.i.boudo Sylvai. Ouédraogo Moussa Kabré Eli. Ouédraogo Noufou Laboratoi.e de Recherche-Développement de Phytomédi.aments et Médi.aments (LR-D/PM) Institut de Recherche en Sciences de la Santé (IRSS/CNRST) Ouagadougou Burkina Faso Laboratoi.e du Développement du Médi.ament (LADME)/Centre de Formati.n de Recherche et d’Expertises en Sciences du Médicament (CEA-CFOREM) Université Joseph KI-ZERBO Ouagadougou Burkina Faso Laboratoi.e de Chi.i. Organi.ue et de Physi.ue Appli.uée (LCOPA) Université Joseph KI-ZERBO Ouagadougou Burkina Faso Agence Nati.nale pour la Sécuri.é sani.ai.e de l’Envi.onnement de l’Alimentation du Travail et des Produits de Santé (ANSSEAT) Ouagadougou Burkina Faso

Background: Anastati.a hi.rochunti.a L. (Brassi.aceae) has been clai.ed to treat vari.us condi.i.ns, i.cludi.g compli.ated chi.dbi.th. The pri.ci.al objecti.e of thi. research was to provi.e sci.nti.i. evi.ence on the contracti.e effect of the aqueous and hydroethanoli. extracts of the whole plant from A. hi.rochunti.a duri.g labor. Method: Quali.ati.e and quanti.ati.e methods helped i.enti.y and quanti.y the phytoconsti.uents i. both extracts. The anti.xi.ant acti.i.y was studi.d usi.g four standard methods (ABTS, DPPH, FRAP, and LPO). Results: The i.hi.i.ory power of the extracts on pro-i.flammatory enzymes such as 15-li.oxygenase and phospholi.ase A2 was determi.ed. The contracti.e effects of the extracts were evaluated usi.g i.olated pregnant mi.e uteri. Steroi.s, tri.erpenoi.s, flavonoi.s, tanni.s, coumari.s, and reduced compounds were i.enti.i.d i. both extracts. The hydroethanoli. extract exhi.i.ed hi.her content of hydrolyzable tanni.s (15.07 ± 0.24 mg tanni. aci. equi.alent/g) than the aqueous decocti.n (11.8 ± 0.69 mg TAE/g). The extracts demonstrated the abi.i.y to scavenge DPPH and ABTS radi.als, reduce ferri. i.ns, and i.hi.i. especi.lly li.i. peroxi.ati.n. No si.ni.i.ant di.ference was noted i. the phospholi.ase i.hi.i.i.n between the extracts and betamethasone. The hydroethanoli. extract di.played the most si.ni.i.ant anti.li.oxygenase acti.i.y wi.h an i.50 value of 55.82 ± 1.15 μg/mL. The lethal dose (LD50) of extracts was esti.ated to be superi.r to 2000 mg/kg body wei.ht (bw). The abi.i.y of the samples to produce one cm ampli.ude of contracti.n at 50% effecti.e concentrati.ns (EC50) was 5.33 × 10−8 ± 0.32 mg/mL for oxytoci., 1.51 ± 0.08 mg/mL for aqueous extract and 3.57 ± 0.61 mg/mL for hydroethanoli. extract. Conclusi.n: These fi.di.gs could provi.e evi.ence for usi.g Anastati.a hi.rochunti.a to faci.i.ate chi.dbi.th.

关键词： Anastati.a hi.rochunti.a Phytoconsti.uents Anti.xi.ant Anti.i.flammatory Uteri.e Contracti.i.y

高压密封微波消解-等离子体发射光谱法测定5种蒙药中镁、钙、锰、铁、钴、镍、铜和锶

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光谱实验室 2007年第2期24卷 92-94页

作者：萨嘎拉内蒙古师范大学化学与环境科学学院呼和浩特市010022

高压密封微波消解-等离子体发射光谱法测定5种蒙药中8种金属元素。实验结果表明:其中铁、锶、锰的含量较高。测定方法简便、快速、省时、稳定性好、回收率均在97.5%—105.5%。测试方法具有较好的精密度和准确度。

关键词：电感耦合等离子体-原子发射光谱法微波消解蒙药镁钙锰铁钴镍铜锶