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DAO媒介:驱动未来社会算法化与自组织的元媒介

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新疆师范大学学报（哲学社会科学版） 2025年第1期46卷 132-141页

作者：喻国明苏健威北京师范大学新闻传播学院北京师范大学传播创新与未来媒体实验平台北京100875

DAO媒介是以区块链算法等技术为基础,支持数字社群协同自治的媒介,具有区块链、智能合约与投票等功能特性和要素确权、技术信任、规则构架以及场景聚合等价值禀赋。对于数字生态显露的各种问题,“算法化”是重构数字生态、降解社会系统... 详细信息

DAO媒介是以区块链算法等技术为基础,支持数字社群协同自治的媒介,具有区块链、智能合约与投票等功能特性和要素确权、技术信任、规则构架以及场景聚合等价值禀赋。对于数字生态显露的各种问题,“算法化”是重构数字生态、降解社会系统复杂性的关键机制,DAO媒介是支撑“自组织式”算法化的元媒介。DAO媒介与数字文明时代喷发的微粒个体、微资源、微价值、微需求、微场景等相匹配,能够深度匹配人的个性与自我,形成有效的趣缘连接,进而极大地释放数字文明的生产力。DAO媒介将深刻影响社会系统的构造,将微粒个体与相关社会要素“包裹”为闭环子系统,支持其准开放的系统边界、有效的异质性整合、可持续的规则重构、子系统与父级系统的持续分化和快速进化,等等。在数字文明时代,DAO媒介将使“重新部落化”的“地球村”变为现实,其驱动构筑的DAO社会将更加多元、更加富有创造力,不断拓展人类群体实践的自由度,使人类在高度异质性聚合基础上更加和谐有序地整合协同。

关键词： DAO 数字媒介算法自组织社会系统

A Wind Tunnel Experimental Study on the Wake Characteristics of a Horizontal Axis Wind Turbine

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Journal of Thermal Science 2025年第1期 145-158页

作者： guo Xingduo LI Yinran LI Rennian MA Yulong wei Kui College of Energy and Power Engineering Lanzhou University of Technology Key Laboratory of Fluid Machinery and Systems gansu Provincial Technology Centre for Wind Turbines

The characteristics of wind turbine wakes are influenced by multiple factors,including the atmospheric boundary layer(ABL) wind and wind turbine operating conditions(e.g.,tip speed ratio and yaw angle).In this study,two types of ABL winds with different velocity gradients and turbulence intensities are generated in a wind tunnel through configurations of spires,baffles,and various numbers of roughness elements.A wind turbine with a rotor diameter of 0.8 m and a hub height of 0.6 m is tested under varying tip speed ratios,yaw angles,and ABL wind *** results indicate that the streamwise velocity deficit in the near-wake region becomes more pronounced with an increase in the tip speed ratio,while the far-wake velocity deficit remains largely unaffected by changes in the tip speed *** the yaw angle increases,the wake deflection becomes more prominent and the wake narrows;the offset of the wake center at various downstream positions grows linearly,reaching a maximum value of approximately half the rotor ***,the turbulence level and influence range in the wake region are reduced when the turbine is *** ABL wind conditions,high turbulence intensity in the incoming flow accelerates wake recovery,and the Reynolds stress at different lateral positions tends to become consistent with increasing longitudinal ***,turbulence has a significant impact on the meandering characteristics of the wind turbine wake,with greater fluctuations in the wake center observed under higher turbulence ***,this study provides insights that could inform the optimal operation of wind farms.

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Formulization of Three-Dimensional Stress and Strain Fields at Elliptical Holes in Finite Thickness Plates

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Acta Mechanica Solida Sinica 2019年第4期32卷 393-430页

作者： wei guo Wcinlin guo State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and AstronauticsNanjing 210016 China

Stress raisers such as holes are inevitable in structures at which stress concentration occurs and the static as well as fatigue strength of the structures can be significantly weakened. Therefore, to accurately evaluate the stress concentration factor and stress fields at holes is of essential importance for structure design and service life prediction. Although stress and strain concentration and fields at holes in finite thickness plates strongly change with and along the thickness, manuals of stress concentration for engineering design are mainly based on twodimensional theory and no explicit formula is available even for circular holes in finite thickness plates. Here we obtain for the first time a complete set of explicit formulae for stress and strain concentration factors and the out-of-plane constraint factor at circular as well as elliptical holes in finite thickness plates by integrating comprehensive three-dimensional finite element analyses and available theoretical solutions. The three-dimensional stress distributions ahead of holes can also be predicted by the obtained formulae. With their accuracy and the corresponding applicable range being analyzed and outlined in detail, the formulae can serve as an important fundamental solution for three-dimensional engineering structure design and guideline for developing threedimensional analytical methods.

关键词： Three-dimensional stress and strain concentration Stress field Elliptical holes Finite thickness plate Explicit solution

Production of Charged Heavy Quarkonium-Like States at the LHC and Tevatron

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Communications in Theoretical Physics 2014年第3期61卷 354-358页

作者： guo Feng-Kun Ulf-g. MeiBner WANg wei Helmholtz-Institut fiir Strahlen- und Kernphysik and Bethe Center for Theoretical Physics Universitat Bonn D-53115 Bonn Germany Institute for Advanced Simulation Institut fiir Kernphysik and Jiilich Center for Hadron Physics JARA-FAME and JARA-HPC Forschungszentrum Jfilich D-52425 Jfilich Germany

We study prompt hadroproduction of the charged bottomonium-like states Zb± （10610） and Zb±（10650）, and the charged eharmonium-like states Zc± （3900） and Zc± （4020）, at the Tevatron and the LHC, provided that these states are S-wave hadronic molecules. Using two Monte Carlo event generators, Herwig and Pythia, to simulate the production of heavy meson pairs, we derive an order-of-magnitude estimate of the production rates for these four particles. Our estimates yield a cross section at the nb level for the Zb（10610） and Zb（10650）. The results for the Zc（3900） and Zc （4020） are larger by a factor of 2~30. These cross sections are large enough to be observed, and measurements at hadron colliders in the future will supplement the study using electron-positron collisions, and therefore allow to explore the mysterious nature of these exotic states.

关键词： exotic hadrons hadroproduction

Periodic solutions of hybrid jump diffusion processes

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Frontiers of Mathematics in China 2021年第3期16卷 705-725页

作者： Xiaoxia guo wei SUN School of Applied Mathematics Shanxi University of Finance and EconomicsTaiyuan030006China School of Mathematics and Information Sciences Guangzhou UniversityGuangzhou510006China Department of Mathematics and Statistics Concordia UniversityMontrealH3G 1M8Canada

We investigate periodic solutions of regime-switching jump *** first show the well-posedness of solutions to stochastic differential equations corresponding to the hybrid ***,we derive the strong Feller property and irreducibility of the associated time-inhomogeneous ***,we establish the existence and uniqueness of periodic *** examples are presented to illustrate the results.

关键词： Hybrid system regime-switching jump diffusion periodic solution strong Feller property irreducibility

Laser Erasing and Rewriting of Flexible Copper Circuits

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Nano-Micro Letters 2021年第11期13卷 409-420页

作者： Xingwen Zhou wei guo Peng Peng School of Mechanical Engineering and Automation Beihang UniversityBeijing 100191People’s Republic of China Department of Mechanical and Mechatronics Engineering Centre for Advanced Materials JoiningUniversity of WaterlooWaterlooON N2L 3G1Canada

Integrating construction and reconstruction of highly conductive structures into one process is of great interest in developing and manufacturing of electronics,but it is quite challenging because these two involve contradictive additive and subtractive *** this work,we report an all-laser mask-less processing technology that integrates manufacturing,modifying,and restoring of highly conductive Cu *** traveling a focused laser,the Cu patterns can be fabricated on the flexible substrate,while these as-written patterns can be selectively erased by changing the laser to a defocused ***,the fresh patterns with identical conductivity and stability can be rewritten by repeating the writing ***,this erasing–rewriting process is also capable of repairing failure patterns,such as oxidation and *** to the high controllability of this writing–erasing–rewriting process and its excellent reproducibility for conductive structures,it opens a new avenue for rapid healing and prototyping of electronics.

关键词： Laser writing Laser erasing Copper electrodes Electronic repairing Flexible electronics

Simultaneous nitrogen and phosphor removal in an aerobic submerged membrane bioreactor

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Journal of Environmental Sciences 2006年第3期18卷 439-445页

作者： WANg Zhi-wei WU Zhi-chao gU guo-wei YU guo-ping MA Lu-ming State Key Laboratory of Pollution Control and Resource Reuse School of Environmental Science and Engineering Tongji University Shanghai200092 China.

Simultaneous nitrification and denitrification （SND） effect and phosphor removal were investigated in a one-staged aerobic submerged membrane bioreactor on pilot-scale with mixed liquor suspended solids （MLSS） 19--20 g/L. The effects of DO concentration, sludge floc size distribution on SND were studied. Test results suggested that SND was successfully performed in the membrane bioreactor （MBR） and about 70% total nitrogen removal efficiency was achieved when DO concentration was set to 0.2-- 0.3 mg/L. The main mechanisms governing SND were the suitable sludge floc size and the low DO concentration which was caused by low oxygen transfer rate with such a high MLSS concentration in the MBR. In the meantime, phosphor removal was also studied with polymer ferric sulfate （PFS） addition and 14 mg/L dosage of PFS was proper for the MBR to remove phosphor. PFS addition also benefited the MBR operation owing to its reduction of extracellular polymer substances （EPS） of mixed liquor.

关键词： membrane bioreactor (MBR) flat-sheet membrane simultaneous nitrification and denitrifiction (SND) phosphorremoval wastewater treatment oxygen transfer rate

One-pot Hydrothermal Synthesis of rgO-Fe3O4 Hybrid Nanocomposite for Removal of Pb（II） via Magnetic Separation

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Chemical Research in Chinese Universities 2015年第4期31卷 508-513页

作者： CAO wei MA Yiran ZHOU wei guo Lin School of Chemistry and Environment Beihang University Beijing 100191 P. R. China

The reduced graphene oxide-Fe3O4（rgO-Fe3O4） hybrid nanocomposite was prepared via a one-pot facile hydrothermal method for adsorption of heavy metal ions. The results of compositional and morphological characteri- zations show that the Fe3O4 NPs with an average diameter of 20 nm have been uniformly dispersed in rgO sheets. Due to the higher specific surface area of rgO and the magnetic properties of Fe3O4 nanoparticles, the prepared rgO-Fe3O4 hybrid nanosheets showed good adsorption capacity for the removal of Pb（II） from wastewater by simple magnetic separation. The result of control tests show that the adsorption capacity of rgO-Fe3O4 can be influenced by the ratio of ferric chloride（FeC13） to graphene oxide（gO） during the process of sample preparation and the initial concentration of Pb（II）. A better adsorption capacity was 30.68 mg/g at n（FeCl3）/m（gO） ratio of 1：5（mmol：mg） at pH=7.0 with the initial concentration of Pb（II） ions of 80 mg/L, and the experimental data were well fitted with the Langmuir adsorption model. The composite with absorbed Pb（II） can be easily collected by magnetic separation from wastewater because of the excellent magnetism of Fe3O4 NPs. The rgO-Fe3O4 hybrid nanocomposite provides an ef- fective and environment-friendly absorbent with great application potential in water purification.

关键词： graphene Nanocomposite Adsorption Magnetic separation

The contribution of root respiration to soil CO_2 efflux in Puccinellia tenuiflora dominated community in a semi-arid meadow steppe

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Chinese Science Bulletin 2006年第6期51卷 697-703页

作者： WANg wei guo Jixun School of Urban and Environmental Sciences Northeast Normal University Changchun 130024 China Key Laboratory for Vegetation Ecology of the Ministry of Education Northeast Normal University Changchun 130024 China

In this study, the linear regression between soil respiration rate and root biomass was adopted to estimate the contribution of root respiration to total soil respiration in Puccinellia tenuiftora dominated community of a semi-arid meadow steppe in northeast China. The soil respiration rate reached the maximum value 2.45 μmol m-2·s-1 in late June and the minimum value 0.39 μmol m-2· s-1 in late September. Soil temperature is the major environmental factor controlling the seasonal variation of soil respiration. The root biomass ranged from 0.54 to 0.97 kg m-2, showing insignificant seasonal variation. Microbial biomass C reached the maximum value 0.50 g m-2 in mid August, presenting the least within-site variation. The pattern of seasonal change in root respiration rate was different from that in microbial respiration. Root respiration rate ranged from 0.19 μmol m-2·s-1 in May, to the maximum value 1.39 μmol m·2s-1 in late June, then down to 0.28 μmol m-2·s-1 in late September; whereas, microbial respiration rate ranged from 0.61 μmol m-2·s-1 in May, to the maximum value 1.27 μmol m-2·s-1 in July, then down to 0.11 μmol m-2·s-1 in late September. There was a significant exponential correlation between microbial respiration rate and soil temperature, whereas not so for root respiration rate. We estimated that the contribution of root respiration tototal soil respiration ranged within 24% -57% in spring and summer, and increased to 73% in autumn.

关键词：半干旱草甸草原根呼吸作用微生物量二氧化碳土壤