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Sustainable hydrothermal self-assembly of zirconium and waste shell for biomass reductive upgrade 认领 引用
1
作者 LIU Xin-yu HU Lin +4 位作者 WU Yu-jie LIU Yang FANG Qiu ZHANG Yong-ning WU Jing-cheng 《Journal of Central South University》 SCIE EI CAS CSCD 2026年第3期1145-1156,共12页
The conversion of biomass-derived aldehydes via waste shell-derived catalysts is vital for sustainable chemistry,yet green batch synthesis of such catalysts from raw biomass remains underexplored.This study uses crab ... The conversion of biomass-derived aldehydes via waste shell-derived catalysts is vital for sustainable chemistry,yet green batch synthesis of such catalysts from raw biomass remains underexplored.This study uses crab shells,a kitchen waste,combined with ZrCl4via non-toxic hydrothermal synthesis to scale-prepare Zr-containing polyphenolic biopolymer catalyst(Zr-Ch).Comprehensive characterizations revealed that the robust coordination between Zr4+ions and phenolic hydroxyl groups in waste shell resulted in the formation of potent Lewis acid-base pair sites(Zr4+-O2−).The synergistic effect of diverse acid-base sites in Zr-Ch enabled exceptional catalytic efficiency for the Meerwein-Ponndorf-Verley(MPV)reaction of furfural(FF)to furfuryl alcohol(FA)with a remarkably lower activation energy of 22.2 kJ/mol,which greatly reduced the reaction temperature to 100℃.Consequently,a quantitative yield of FA as high as 94.9%and a selectivity for FA of 98.9%were achieved.This research expanded waste shell applications and illuminated acid-base interaction mechanisms in biomass molecule reduction. 展开更多
关键词 waste shell green catalyst biomass upgrade Meerwein-Ponndorf-Verley reaction reaction mechanism
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An Upgrade Strategy for Active Distribution Networks Considering Probabilistic Power Flow 认领 引用
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作者 Xiaotong Li Mingquan Qiu +7 位作者 Wenjun Zhang Pengfei Li Chong Liu Chong Yang Han Xiao Feng Hu Binghui Liu He Wang 《Energy Engineering》 EI 2026年第8期133-157,共25页
To address the operational uncertainties and power quality challenges brought by high-penetration distributed energy integration into distribution networks,this paper proposes a precision renovation optimization metho... To address the operational uncertainties and power quality challenges brought by high-penetration distributed energy integration into distribution networks,this paper proposes a precision renovation optimization method for active distribution networks(ADNs)that considers probabilistic power flow.First,based on probabilistic power flow analysis,a comprehensive power quality evaluation index system is constructed to accurately quantify the impact of uncertainties caused by photovoltaic fluctuations on distribution network power quality under high-penetration distributed photovoltaic(PV)scenarios.On this basis,a precision renovation optimization model is established with the goals of minimizing renovation cost,maximizing renewable energy hosting capacity,and optimizing the comprehensive power quality index,thereby achieving coordinated optimization of economic and operational performance.To address the challenges of solving this high-dimensional,mixed-variable,and strongly constrained model,an Adaptive and Feedback-enhanced Multi-strategy Particle Swarm Optimization(AFM-PSO)algorithm is proposed.This algorithm incorporates structured particle encoding,a dynamic information entropy feedback mechanism,and a local perturbation strategy,significantly improving search efficiency and convergence accuracy,making it suitable for rapidly solving complex distribution system renovation problems.Finally,the effectiveness of the proposed model and algorithm is verified using an IEEE 33-node distribution system with high-penetration PV integration as a simulation platform.The results demonstrate that the proposed method significantly enhances system voltage stability and renewable energy hosting capacity while controlling renovation costs,validating its superiority in achieving refined renovation and efficient operation of distribution networks. 展开更多
关键词 Active distribution networks distribution network upgrade probabilistic powerffiow power quality evaluation index multi-strategy particle swarm algorithm
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Paving the Way A China-led arterial road upgrade sparks a new socio-economic era in Malawi 认领 引用
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作者 EDWIN NYIRONGO 《ChinAfrica》 2026年第7期44-45,共2页
Matias Jere is at a hardware shop in Malawi’s capital city,Lilongwe.He is waiting for it to open so that he can buy ball joints for his vehicle,his third set in as many months.“Our roads are so bad that ball joints ... Matias Jere is at a hardware shop in Malawi’s capital city,Lilongwe.He is waiting for it to open so that he can buy ball joints for his vehicle,his third set in as many months.“Our roads are so bad that ball joints don’t last long,and it’s costing me a small fortune,”he said.Businessman Rafik Mwamadi is also worried.He needs to travel more than 300 km to the Northern Region city of Mzuzu to deliver merchandise,but the road is riddled with potholes.In the past,the road trip took about five hours,but in its current poor condition,it takes about nine hours. 展开更多
关键词 transportation cost road condition potholes China led arterial road upgrade Malawi ball joints socio economic era travel time
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Future Ultrafast Charging Stations for Electric Vehicles in China:Charging Patterns,Grid Impacts and Solutions,and Upgrade Costs 认领 引用 被引量：2
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作者 Yang Zhao Xinyu Chen +2 位作者 Peng Liu Chris P.Nielsen Michael B.McElroy 《Engineering》 SCIE EI CSCD 2025年第5期309-322,共14页
In China,electric vehicle(EV)fast-charging power has quadrupled in the past five years,progressing toward 10-minute ultrafast charging.This rapid increase raises concerns about the impact on the power grid including i... In China,electric vehicle(EV)fast-charging power has quadrupled in the past five years,progressing toward 10-minute ultrafast charging.This rapid increase raises concerns about the impact on the power grid including increased peak power demand and the need for substantial upgrades to power infrastruc-ture.Here,we introduce an integrated model to assess fast and ultrafast charging impacts for represen-tative charging stations in China,combining real-world charging patterns and detailed station optimization models.We find that larger stations with 12 or more chargers experience modest peak power increases of less than 30%when fast-charging power is doubled,primarily because shorter charg-ing sessions are less likely to overlap.For more typical stations(e.g.,8-9 chargers and 120 kW·charger−1),upgrading chargers to 350-550 kW while allowing managed dynamic waiting strategies(of∼1 minute)can reduce overall charging times to∼9 minutes.At stations,deploying battery storage and/or expanding transformers can help manage future increases in station loads,yet the primary device cost of the former is∼4 times higher than that of the latter.Our results offer insights for charging infrastructure planning,EV-grid interactions,and associated policymaking. 展开更多
关键词 Electric vehicle Ultrafast charging Grid impact Charging infrastructure Upgrade cost
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Characteristics and outcomes of trauma patients with unplanned intensive care unit admissions:Bounce backs and upgrades comparison 认领 引用 被引量：1
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作者 Alexander A Fokin Joanna Wycech Knight +4 位作者 Phoebe K Gallagher Justin Fengyuan Xie Kyler C Brinton Madison E Tharp Ivan Puente 《World Journal of Critical Care Medicine》 2025年第2期105-120,共16页
BACKGROUND The need for an emergency upgrade of a hospitalized trauma patient from the floor to the trauma intensive care unit(ICU)is an unanticipated event with possible life-threatening consequences.Unplanned ICU ad... BACKGROUND The need for an emergency upgrade of a hospitalized trauma patient from the floor to the trauma intensive care unit(ICU)is an unanticipated event with possible life-threatening consequences.Unplanned ICU admissions are associated with increased morbidity and mortality and are an indicator of trauma service quality.Two different types of unplanned ICU admissions include upgrades(patients admitted to the floor then moved to the ICU)and bounce backs(patients admitted to the ICU,discharged to the floor,and then readmitted to the ICU).Previous studies have shown that geriatric trauma patients are at higher risk for unfavorable outcomes.AIM To analyze the characteristics,management and outcomes of trauma patients who had an unplanned ICU admission during their hospitalization.METHODS This institutional review board approved,retrospective cohort study examined 203 adult trauma patients with unplanned ICU admission at an urban level 1 trauma center over a six-year period(2017-2023).This included 134 upgrades and 69 bounce backs.Analyzed variables included:(1)Age;(2)Sex;(3)Comorbidities;(4)Mechanism of injury(MOI);(5)Injury severity score(ISS);(6)Glasgow Coma Scale(GCS);(7)Type of injury;(8)Transfusions;(9)Consultations;(10)Timing and reason for unplanned admission;(11)Intubations;(12)Surgical interventions;(13)ICU and hospital lengths of stay;and(14)Mortality.RESULTS Unplanned ICU admissions comprised 4.2%of total ICU admissions.Main MOI was falls.Mean age was 70.7 years,ISS was 12.8 and GCS was 13.9.Main injuries were traumatic brain injury(37.4%)and thoracic injury(21.7%),and main reason for unplanned ICU admission was respiratory complication(39.4%).The 47.3%underwent a surgical procedure and 46.8%were intubated.Average timing for unplanned ICU admission was 2.9 days.Bounce backs occurred half as often as upgrades,however had higher rates of transfusions(63.8%vs 40.3%,P=0.002),consultations(4.8 vs 3.0,P<0.001),intubations(63.8%vs 38.1%%,P=0.001),longer ICU lengths of stay(13.2 days vs 6.4 days,P<0.001)and hospital lengths of stay(26.7 days vs 13.0 days,P<0.001).Mortality was 25.6%among unplanned ICU admissions,31.9%among geriatric unplanned ICU admissions and 11.9%among all trauma ICU patients.CONCLUSION Unplanned ICU admissions constituted 4.2%of total ICU admissions.Respiratory complications were the main cause of unplanned ICU admissions.Bounce backs occurred half as often as upgrades,but were associated with worse outcomes. 展开更多
关键词 Unplanned intensive care unit admissions Trauma intensive care unit Bounce backs Upgrades Level 1 trauma center Geriatric trauma patients Quality of care indicator
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2025 Gaoyang Textile&Apparel Event:Boosting supply chain&industry upgrade in Beijing–Tianjin–Hebei region 认领 引用
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作者 Qiu Shuchen 《China Textile》 2025年第3期32-33,共2页
On May 21st,the launch ceremony of the 2025 Textile and Clothing"Optimization of Supply and Upgrade"event was held in Gaoyang,Hebei Province.The theme of the event is to promote the coordinated development a... On May 21st,the launch ceremony of the 2025 Textile and Clothing"Optimization of Supply and Upgrade"event was held in Gaoyang,Hebei Province.The theme of the event is to promote the coordinated development and supply-demand docking of the textile and clothing industry in the Beijing–Tianjin–Hebei Region.Representatives from the textile and clothing industries gathered in Gaoyang to discuss the coordinated development of regional industries.The Ministry of Industry and Information Technology,Industry Associations,and leaders of the three local governments jointly announced the official launch of the national industrial upgrading action. 展开更多
关键词 beijing tianjin hebei region industrial upgrading action industry upgrade supply chain textile coordinated development clothing supply demand docking
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Flexible Manufacturing Assists Intelligent Manufacturing Upgrade of Automobile Industry 认领 引用
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作者 Weiming Huang 《Journal of Electronic Research and Application》 2025年第7期1-4,共4页
The automotive industry has always held a pivotal position in the manufacturing sector.As the manufacturing industry undergoes intelligent transformation and upgrading,flexible manufacturing technology has consistentl... The automotive industry has always held a pivotal position in the manufacturing sector.As the manufacturing industry undergoes intelligent transformation and upgrading,flexible manufacturing technology has consistently played a crucial role in the“smart”manufacturing upgrade of the automotive industry.This technology effectively adapts to changes in both internal and external environments,promptly responds to and addresses various uncertainties,significantly reduces production cycles and costs,while ensuring product quality and efficiency.This article conducts research and analysis on the application of flexible technologies in the“smart”manufacturing upgrade of the automotive industry.It briefly explores the fundamental characteristics of flexible manufacturing technology.Subsequently,it analyzes the core value of applying flexible manufacturing technology in the“smart”manufacturing upgrade of the automotive industry.It investigates the application of flexible manufacturing technology in the automotive industry’s“smart”manufacturing,focusing on flexible production equipment,flexible material transfer systems,flexible measurement systems,and flexible production lines.Through this research,this paper provides references and insights for the deep integration of China’s automotive industry with flexible manufacturing technology. 展开更多
关键词 Flexible manufacturing technology Intelligent manufacturing upgrade in the automotive industry Application
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Effect of thermal annealing on defects of upgraded metallurgical grade silicon 认领 引用 被引量：5
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作者 吴洪军 马文会 +4 位作者 陈秀华 蒋咏 梅向阳 张聪 吴兴惠 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第6期1340-1347,共8页
Effect of thermal annealing on the upgraded metallurgical grade（UMG）-Si was investigated under different conditions.The dislocation,grain boundaries and preferred growth orientation of Si ingot were characterized by... Effect of thermal annealing on the upgraded metallurgical grade（UMG）-Si was investigated under different conditions.The dislocation,grain boundaries and preferred growth orientation of Si ingot were characterized by optical microscopy,electron back scattering diffraction（EBSD） and X-ray diffractometry（XRD）,respectively.The arrange order of dislocation density of Si ingot is from the lowest in the middle to the lower in the bottom and low in the top before and after annealing.And it decreases gradually with increase of the annealing temperature.The number of small angle grain boundaries declines gradually until disappears whereas the proportion of coincidence site lattice（CSL） grain boundaries increases firstly and then decreases.The twin boundary Σ3 reaches the highest proportion of 28% after annealing at 1 200 ℃ for 3 h.Furthermore,the crystal grains in different positions gain the best preferred growth orientation,which can promote the following machining of Si ingot and the conversion efficiency of solar cells. 展开更多
关键词 upgraded metallurgical grade（UMG-Si） annealing dislocation density grain boundaries
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One-step production of high-strength titanium alloy by sintering titanium hydride powder from upgraded titania slag 认领 引用 被引量：2
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作者 Zhao-wang DONG Yang XIA +4 位作者 Xue-yi GUO Qing-hua TIAN Han-ning LIU Pei-dong LIU Yu-bing CHEN 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2022年第11期3801-3809,共9页
A direct production method of high-strength titanium alloy from upgraded titania slag(UGS)was developed.First,UGS was reduced into alloy powder with 1.3 wt.%oxygen using magnesium powder.Subsequently,the alloy powder ... A direct production method of high-strength titanium alloy from upgraded titania slag(UGS)was developed.First,UGS was reduced into alloy powder with 1.3 wt.%oxygen using magnesium powder.Subsequently,the alloy powder was compacted at 600 MPa to produce a pellet.Lastly,the pellet was sintered to produce titanium alloy.The reduced powder was characterized,and the effect arising from the sintering temperature on the sintered density,compressive strength,microstructure,and hardness of the alloys was studied.The results showed that the density tended to increase with the temperature increasing from 900 to 1200℃,whereas the porosity decreased.A significant sintering densification was achieved at the temperature above 1100℃(98.65%at 1100℃ and 99.41%at 1200℃).At 1100℃,the hardness and compressive strength reached the maximal values of the alloy,HV 655.7 and 1563 MPa,respectively. 展开更多
关键词 upgraded titania slag reduction titanium alloy sintering
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Epilithic biofilm as a reservoir for functional virulence factors in wastewater-dominant rivers after WWTP upgrade 认领 引用 被引量：1
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作者 Guannan Mao Jinsong Liang +5 位作者 Qiaojuan Wang Chen Zhao Yaohui Bai Ruiping Liu Huijuan Liu Jiuhui Qu 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2021年第3期27-35,共9页
Virulence factors(VFs)confer upon pathogens the ability to cause various types of damage or diseases.Wastewater treatment plants(WWTPs)are important point sources for the emission of pathogens and VFs into receiving r... Virulence factors(VFs)confer upon pathogens the ability to cause various types of damage or diseases.Wastewater treatment plants(WWTPs)are important point sources for the emission of pathogens and VFs into receiving rivers.Conventional WWTP upgrades are often implemented to improve the water quality of receiving ecosystems.However,knowledge on the pathogens,VFs,and health risks to receiving aquatic ecosystems after upgrade remains limited.In this study,we investigated detailed pathogenic information,including taxa,pathogenicity,and health risk,in two wastewater-dominant rivers after WWTP upgrade.Using 16S rRNA gene sequencing,we screened 14 potential pathogens in water and epilithic biofilm samples,though they were significantly more enriched in the biofilms.Combining 16S rRNA and metagenomic sequencing data,we identified Pseudomonas and Aeromonas as the dominant pathogenic taxa carrying functional VFs(e.g.,mobility and offensive)in the epilithic biofilm.Moreover,strong pathogen-specific VF-host co-occurrence events were observed in the epilithic biofilm samples,indicating the importance of biofilms as reservoirs and vehicles for VFs.Further,we demonstrated that mobility VF is crucial for biofilm formation and pathogens in biofilm carrying offensive VF may be highly invasive.Quantification and health risk assessment suggested that the skin contact risk of P.aeruginosa carrying VFs was higher than the acceptable probability of 10-4in both water and epilithic biofilm samples,which may threaten ecological and human health. 展开更多
关键词 Wastewater treatment plant upgrade Epilithic biofilm Pathogens Virulence factors Health risk
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China's Industrial Upgrade and Human Capital Improvement 认领 引用 被引量：4
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作者 张车伟 高文书 《中国经济学人（中英文）》 2016年第4期22-45,共24页
Based on statistics, this paper reviews China＇s economic growth and industrial upgrade since the reform and opening up in 1978 and estimates the contribution of industrial restructuring to economic growth. With the y... Based on statistics, this paper reviews China＇s economic growth and industrial upgrade since the reform and opening up in 1978 and estimates the contribution of industrial restructuring to economic growth. With the years of schooling as the proxy variable of human capital, this paper describes changes in China＇s labor competence during the industrial restructuring process. Then, this paper estimates China＇s future human capital demand and shortage based on economic and demographic forecast. Lastly, this paper proposes recommendations for improving human capital in China with skills development and education. 展开更多
关键词 industrial structure industrial upgrade human capital labor competence China supply-side structural reforms
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Discussion of the indexes of nonoutburst coal seam upgrade and its corresponding critical values 认领 引用 被引量：1
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作者 WEI Jian-ping LIU Yan-wei +1 位作者 LIU Ming-ju MENG Lei 《Journal of Coal Science & Engineering(China)》 2009年第4期382-388,共7页
In view of the measurement difficulties of indexes recommended by the 50Items Experience of Coal Mine Gas Prevention in the process of the nonoutburst coalseam upgrade, this paper took the No.8 coal seam of Huainan Mi... In view of the measurement difficulties of indexes recommended by the 50Items Experience of Coal Mine Gas Prevention in the process of the nonoutburst coalseam upgrade, this paper took the No.8 coal seam of Huainan Mining Group as research object. Discussed the suitability of indexes and corresponding critical values, putforward method in determining the indexes and its critical values by analysis and investigation of the gas geological condition and the-spot tracking near position where anoutburst occurred combined with laboratory experiment, and established the indexesand its critical values of nonoutburst coal seam upgrade in No.8 coal seam of HuainanMining Group. The results show that it is suitable to take gas content and tectonic softcoal thickness easily to gain in routine production as primary upgrade indexes that itscritical values are 7.5 m^3 and 0.8 m, respectively. In addition, takefvalue and Ap valueas auxiliary indexes. 展开更多
关键词 nonoutburst coal seam upgrade methods and indexes system gas geology tectonic soft coal thickness gas content
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The Problems and Upgrade Strategies for City Symbolic Image of Yibin in Sichuan Province 认领 引用 被引量：1
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作者 孟宝 周陶 《Journal of Landscape Research》 2010年第11期95-99,共5页
The connotation of city symbolic image was redefined in this study.Based on this,the main shortages of Yibin City symbolic image were listed and analyzed with an emphasis.And then the specific strategies to improve in... The connotation of city symbolic image was redefined in this study.Based on this,the main shortages of Yibin City symbolic image were listed and analyzed with an emphasis.And then the specific strategies to improve intrinsic image and symbolic image of the city were proposed with a pertinence,so as to provide reference for establishment of Yibin City symbolic image and development of export-oriented economy. 展开更多
关键词 Geographical image City symbolic image Upgrade Yibin City
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Strategic Contracting for Software Upgrade Outsourcing in Industry 4.0 认领 引用
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作者 Cheng Wang Zhuowei Zheng 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第2期1563-1592,共30页
The advent of Industry 4.0 has compelled businesses to adopt digital approaches that combine software toenhance production efficiency. In this rapidly evolving market, software development is an ongoing process thatmu... The advent of Industry 4.0 has compelled businesses to adopt digital approaches that combine software toenhance production efficiency. In this rapidly evolving market, software development is an ongoing process thatmust be tailored to meet the dynamic needs of enterprises. However, internal research and development can beprohibitively expensive, driving many enterprises to outsource software development and upgrades to externalservice providers. This paper presents a software upgrade outsourcing model for enterprises and service providersthat accounts for the impact of market fluctuations on software adaptability. To mitigate the risk of adverseselection due to asymmetric information about the service provider’s cost and asymmetric information aboutthe enterprise’s revenues, we propose pay-per-time and revenue-sharing contracts in two distinct informationasymmetry scenarios. These two contracts specify the time and transfer payments for software upgrades. Througha comparative analysis of the optimal solutions under the two contracts and centralized decision-making withfull-information, we examine the characteristics of the solutions under two information asymmetry scenarios andanalyze the incentive effects of the two contracts on the various stakeholders. Overall, our study offers valuableinsights for firms seeking to optimize their outsourcing strategies and maximize their returns on investment insoftware upgrades. 展开更多
关键词 Software upgrade outsourcing the principal-agent information asymmetry reverse selection contract design
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China's Industrial Upgrade in Global Factor Specialization 认领 引用
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作者 金京 戴翔 张二震 《中国经济学人（中英文）》 2014年第5期40-55,共16页
China has operated as a proactive destination of technology transfer and diffusion from the Western world since reform and opening-up in 1978.This enabled the country to seize strategic opportunities of global factor ... China has operated as a proactive destination of technology transfer and diffusion from the Western world since reform and opening-up in 1978.This enabled the country to seize strategic opportunities of global factor specialization and helped it achieve great industrial development and upgrade.Nevertheless,the traditional path of integration into the global system of factor specialization has also brought about problems of imbalance and incoordination such as an excessive consumption of natural resources and environmental damage,making it necessary for China's industrial development to increase sustainability.Deepening of global factor specialization,increased cross-border liquidity,and the strategy of "reverse integration" of multinational firms based on developing economies are tendencies highly consistent with the direction of China's industrial development and upgrade and present new strategic opportunities for integration into global factor specialization and industrial transformation.Rather than simply acting passively as a destination of foreign investment,a new round of opening-up is required for China to take a more efficient route in the global system of factor specialization.Therefore,in the area of industrial development,China must keep a down-to-earth attitude,effectively utilize the existing comparative advantages,and follow a gradual and science-based approach.Only by following this course will China be able to take advantage of the new opportunities,foster advanced indigenous and international factors,and increase its capabilities of innovation and global operation on the basis of global resources integration. 展开更多
关键词 factor specialization industrial upgrade comparative advantage
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Intra-beam scattering and beam lifetime in a candidate lattice of the soft X-ray diffraction-limited storage ring for the upgraded SSRF 认领 引用 被引量：13
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作者 Xin-Zhong Liu Shun-Qiang Tian +2 位作者 Xu Wu Meng Wang Zhen-Tang Zhao 《Nuclear Science and Techniques》 SCIE EI CAS CSCD 2021年第8期57-66,共10页
New-generation synchrotron light sources are being designed and operated worldwide to provide brighter radiation by reducing the beam emittance to X-ray diffraction limits.Intra-beam scattering(IBS)and Touschek scatte... New-generation synchrotron light sources are being designed and operated worldwide to provide brighter radiation by reducing the beam emittance to X-ray diffraction limits.Intra-beam scattering(IBS)and Touschek scattering in such facilities are significant and require attention because of their ultra-low emittance.Therefore,cure strategies need to be carefully studied to obtain highquality photon beams.For the Shanghai Synchrotron Radiation Facility Upgrade(SSRF-U),a candidate lattice of the storage ring,reaching the soft X-ray diffraction limit,was designed and presented for the first time in this study.The emittance growth and beam lifetime in the SSRF-U storage ring were studied using particle simulations for a series of different machine configurations.The gains with RF frequencies of 100 MHz and 500 MHz were compared.Along with a better filling pattern,a more suitable RF frequency was adopted in the SSRF-U.The variations in the equilibrium beam emittance with beam coupling and bunch-lengthening were identified using simulations.Optimal beam coupling and required bunch-lengthening for the SSRF-U storage ring were thus determined.The fitness of the beam energy in the SSRF-U was subsequently assessed using the obtained parameters.Additionally,the Touschek scattering and beam lifetime were calculated,and an acceptable total beam lifetime was obtained. 展开更多
关键词 Diffraction-Limited Storage Ring(DLSR) Shanghai Synchrotron Radiation Facility Upgrade(SSRFU) Intra-Beam Scattering(IBS) Touschek scattering Beam lifetime
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Upgrade and separation of Co from solution with low-grade Co 认领 引用
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作者 ZHONG Shi an,ZHOU Chun shan,OU Yang xi,CHENG Ben cheng 《Journal of Central South University of Technology》 2001年第4期249-251,共3页
Upgrade and separation of Co from solution with low grade Co were studied. In the solution, the content of Co is about 1 g·L -1 , while that of Ni, Zn, Mn, Mg, Si and Ca is 0.145, 1.108, 0.119, 6.672, 0.026 and 0... Upgrade and separation of Co from solution with low grade Co were studied. In the solution, the content of Co is about 1 g·L -1 , while that of Ni, Zn, Mn, Mg, Si and Ca is 0.145, 1.108, 0.119, 6.672, 0.026 and 0.200 g·L -1 , respectively. After absorbed with absorbent G-1, the content of Co in the solution is less than 1 mg·L -1 , the average loss rate of Co is 0.07%, while the average loss rate of Mg is 67.92%. It is demonstrated that the absorbent has selectivity to absorb Co. After the absorbent was eluted with HCl at room temperature, the solution with higher content of Co was obtained. Through being evaporated and concentrated, the contant of Co in the solution can be upgraded to 26.6 g·L -1 . At the same time, most of Si, Mg is removed, the total recovery of Co can reach as high as 98.7%. The content of Pb, Ni, Cu, Zn, Mn in the discharge solution is 1.00, 0.26, 0.21, 0.09, 0.15 mg·L -1 , respectively, and the discharge solution can reach the national discharge standard. CoCl 2 solid can be obtained and can reach chemical purity. 展开更多
关键词 Co upgrade separation
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The Flying Geese Paradigm:Industrial Upgrade Strategy and Balanced Regional Development 认领 引用
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作者 张其仔 《中国经济学人（中英文）》 2014年第5期66-87,共22页
On the basis of competency-based comparative advantage theory and reclassification of industries,this paper has discussed whether the FGP-type industry upgrade has taken place across different regions of China and whe... On the basis of competency-based comparative advantage theory and reclassification of industries,this paper has discussed whether the FGP-type industry upgrade has taken place across different regions of China and whether China is able to transcend the middle-income trap through the FGP-type industry upgrade.This paper has discovered that no matter by traditional method of industry classification or the new method of industry classification,China has already experienced the FGP-type industry upgrade and entered into the second stage of this process.While relocating industries to central and western regions,China's eastern region does not have clear directions of industry upgrade of its own.Through analysis on the evolution of comparative advantages across regions,this paper has also discovered that in the process of the FGP industry upgrade,China is facing the risk of falling into comparative advantage trap.These factors are unfavorable to China's implementation of the FGP-type industry upgrade strategy,prevention of the comparative advantage interruptions that may confront middle-income countries and achievement of balanced regional development. 展开更多
关键词 The FGP-type industry upgrade product space comparative advantage
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Residual fluoride self-activated effect enabling upgraded utilization of recycled graphite anode 认领 引用 被引量：4
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作者 Shuzhe Yang Qingqing Gao +7 位作者 Yukun Li Hongwei Cai Xiaodan Li Gaoxing Sun Shuxin Zhuang Yujin Tong Hao Luo Mi Lu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2024年第6期24-31,I0002,共8页
Recycling graphite anode from spent lithium-ion batteries(SLIBs)is regarded as a crucial approach to promoting sustainable energy storage industry.However,the recycled graphite(RG)generally presents degraded structure... Recycling graphite anode from spent lithium-ion batteries(SLIBs)is regarded as a crucial approach to promoting sustainable energy storage industry.However,the recycled graphite(RG)generally presents degraded structure and performance.Herein,the residual fluoride self-activated effect is proposed for the upgraded utilization of RG.Simple and low-energy water immersion treatment not only widens the interlayer spacing,but also retains appropriate fluoride on the surface of RG.Theoretical analysis and experiments demonstrate that the residual fluoride can optimize Li~+migration and deposition kinetics,resulting in better Li~+intercalation/deintercalation in the interlayer and more stable Li metal plating/stripping on the surface of RG,As a result,the designed LFP||RG full cells achieve ultrahigh reversibility(~100%Coulombic efficiency),high capacity retention(67%after 200 cycles,0.85 N/P ratio),and commendable adaptability(stable cycling without short-circuiting,0.15 N/P ratio).The energy density is improved from 334 Wh kg-1of 1.1 N/P ratio to 367 Wh kg-1of 0.85 N/P ratio(total mass based on cathode and anode).The exploration of RG by residual fluoride self-activated effect achieves upgraded utilization beyond fresh commercial graphite and highlights a new strategy for efficient reuse of SLIBs. 展开更多
关键词 Spent lithium-ion batteries Recycled graphite anode Fluoride Self-activated effect Upgraded utilization
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Cardiac resynchronization therapy improved the clinical outcomes in pacemaker patients upgraded to biventricular device 认领 引用 被引量：2
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作者 Han JIN Wei HUA +5 位作者 Li-Gang DING Jing WANG Hong-Xia NIU Min GU Cong XUE Shu ZHANG 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2017年第10期649-651,共3页
The right ventricular pacing （RVP） is the standard treat- ment for patients with severe bradyarrhythmias; however, it may cause and exacerbate heart failure symptoms in a long run under some circumstances.{1] In fac... The right ventricular pacing （RVP） is the standard treat- ment for patients with severe bradyarrhythmias; however, it may cause and exacerbate heart failure symptoms in a long run under some circumstances.{1] In fact, significant left ventricular （LV） systolic dysfimction and symptomatic heart failure （HF） is commonly found in patient population with pacemaker implantations. 展开更多
关键词 Cardiac resynchronization therapy Chronic right ventricular pacing Heart failure Upgrade
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