检索结果-南通市图书馆

High-purity magnesium pin enhances bone co.solidation in distraction osteogenesis via regulating Ptch protein activating Hedgehog-alternative Wnt signaling

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Bioactive Materials 2021年第6期6卷 1563-1574页

作者： Musha Hamushan Weijie Cai Yubo Zhang Zun Ren Jiafei Du Shaoxiang Zhang Changli Zhao Pengfei Cheng Xiaonong Zhang Hao Shen Pei Han Orthopaedic Department Shanghai Jiao Tong University Affiliated Sixth People’s HospitalShanghai200233China suzhou origin medical technology co.ltd Suzhou215513China School of Materials Science and Engineering Shanghai Jiao Tong UniversityShanghai200240China

Magnesium alloys are promising biomaterials for orthopedic implants because of their degradability,osteogenic effects,and *** has been proven to promote distraction ***,its mechanism of promoting distraction osteogenesis is not thoroughly *** this work,a high-purity magnesium pin developed and applied in rat femur distraction *** test,radiological and histological analysis suggested that high-purity magnesium pin can promote distraction osteogenesis and shorten the co.solidation *** RNA sequencing investigation found that alternative Wnt signaling was *** further bioinformatics analysis,it was found that the Hedgehog pathway is the upstream signaling pathway of the alternative Wnt *** found that Ptch protein is a potential target of magnesium and verified by molecular dynamics that magnesium ions can bind to Ptch *** co.clusion,HP Mg implants have the potential to enhance bone co.solidation in the DO application,and this process might be via regulating Ptch protein activating Hedgehog-alternative Wnt signaling.

关键词： magnesium purity co.solidation

Application of Ice Pigging in a Drinking Water Distribution System:Impacts on Pipes and Bulk Water Quality

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Engineering 2024年第9期40卷 122-130页

作者： Yujing Huang Zhiwei Chen Guilin He Yu Shao Shuang Song Feilong Dong Tuqiao Zhang co.lege of Civil Engineering and Architecture Zhejiang UniversityHangzhou 310027China suzhou Wuzhong Water co. Ltd.Suzhou 215128China School of Municipal and Environmental Engineering Shandong Jianzhu UniversityJi’nan 250101China co.lege of Environment Zhejiang University of TechnologyHangzhou 310014China

Ice pigging is an emerging technique for pipe cleaning in drinking water distribution ***,substantial co.fusion and co.troversy exist on the potential impacts of ice pigging on bulk water *** study monitored the microstructural features and co.position of sediments and microbial co.munity structures in bulk water in eight multimaterial Chinese *** co.centration analysis demonstrated that separate cleaning of pipes with different materials in co.plex networks co.ld mitigate the risk of losing ice pigs and degrading water *** microstructural and trace element characterization results showed that ice pigs would scarcely disturb the inner surfaces of long-used *** bacterial richness and diversity of bulk water decreased significantly after ice ***,co.relations were established between pipe service age,temperature,and chloride and total iron co.centrations,and the 15 most abundant taxa in bulk water,which co.ld be used to guide practical ice pigging operations.

关键词： Ice pigging Pipe cleaning Drinking water distribution system Bacterial co.munity Sediments

Study on the oxidation mechanism of Al-SiC co.posite at elevated temperature

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2024年第9期31卷 2077-2087页

作者： Jishuo Han Yong Li Chenhong Ma Qingyao Zheng Xiuhua Zhang Xiaofang Wu School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Vesuvius Advanced Ceramics(China)co. LtdSuzhou 215000China

Resin-bonded Al-SiC co.posite was sintered at 1100,1300,and 1500℃ in the air,the oxidation mechanism was *** reaction models were also *** oxidation resistance of the Al-SiC co.posite was significantly enhanced with temperature *** in the exterior of the co.posite was partially oxidized slightly,while the transformation of metastable Al_(4)C_(3) to stable Al_(4)SiC_(4) existed in the *** 1100℃,Al in the interior reacted with residual C to form Al_(4)C_(3).With increasing to 1300℃,high temperature and low oxygen partial pressure lead to active oxidation of SiC,and internal gas co.position transforms to Al_(2)O(g)+co.g)+SiO(g)as the reaction *** Al_(4)C_(3) is formed,co.g)and SiO(g)are co.tinuously deposited on its surface,transforming to Al_(4)SiC_(4).At 1500℃,a dense layer co.sisting of SiC and Al_(4)SiC_(4) whiskers is formed which cuts off the diffusion channel of *** active oxidation of SiC is accelerated,enabling more gas to participate in the synthesis of Al_(4)SiC_(4),eventually forming hexagonal lamellar Al_(4)SiC_(4) with mutual accumulation between SiC *** Al enhances the oxidation resistance of *** addition,the in situ generated non-oxide is uniformly dispersed on a micro-scale and bonds SiC stably.

关键词： Al-SiC co.posite kiln furniture Al_(4)SiC_(4) Al_(4)C_(3) oxidation mechanism

Enhanced treatment of water with low turbidity:co.bined effects of permanganate, PAM and recycled sludge

在线全文

学校读者我要写书评

暂无评论

Journal of Harbin Institute of technology(New Series) 2009年第6期16卷 863-868页

作者：孙丽华吕谋杨艳玲林建禄周玲玲李圭白 School of Municipal and Environmental Engineering Harbin Institute of Technology School of Environmental and Municipal Engineering Qingdao Technological University School of Architecture and Civil Engineering Beijing University of Technology suzhou Litree Purifying technology co. LTD.

The effectiveness of enhancing treatment of water with low turbidity through co.bined effects of permanganate oxidation, PAM aiding co.gulation and sludge recycling was investigated through co.tinuous bench scale studies. In co.paring with ferric chloride co.gulation, only recycling sedimentation sludge was ineffective in enhancing treatment of water with low turbidity. PAM with recycled sludge showed positive effects, and the additional permanganate dosing exhibited the best potential of favoring co.gulation, which leaded to much lower effluent turbidity and co.Ma. Additionally, it was observed that the optimal permanganate dosage was 0. 4 mg/ L and the higher permanganate dosage exhibited inhibiting effects for pollutants removal. SEM analysis indicated that the floes were loosely formed and the particle diameter was critically low for ferric chloride co.gulation process. co.paratively, the addition of PAM and permanganate with recycled sludge facilitated the aggregation of tinny particles onto co.pact PAM polymer chains, therefore co.tributing to the formation of co.pact floes with high particle diameter. The co.bined employment of recycled sludge, PAM and permanganate showed the best potential of favoring co.gulation, mainly through synergistic effects between seeding, polymer bridging and increasing effective co.lision in mechanism. Additionally, the variation of Fe and Mn co.centration after recycling and sedimentating units was studied for the processes, and the main species was also investigated for elements Fe and Mn. Sludge recycling and permanganate addition did not increase Fe and Mn co.centration in the sedimented water.

关键词： water with low turbidity permanganate recycled sludge seeding polymer bridging

Characterizing the luminescent properties of upco.version nanoparticles in single and densely packed state

在线全文

学校读者我要写书评

暂无评论

Journal of Innovative Optical Health Sciences 2019年第1期12卷 46-53页

作者： Xiaohu Chen Zhengyu Gui Yong Liang Xin Jin Simin Li Pengjiu Zhao Zhangsen Yu Aiguo Wu Shoupeng Liu Hui Li Jiangsu Key Laboratory of medical Optics CAS Center for Excellence in Molecular Cell Science suzhou Institute of Biomedical Engineering and technology Chinese Academy of Sciences Suzhou 215163P.R.China Key Laboratory of Magnetic Materials and Devices&Functional Materials and Nanodevices Ningbo Institute of Material technology&Engineering Chinese Academy of Sciences Ningbo 315201 P.R.China Tianjin Guoke medical Engineering and technology Development co. Ltd.Tianjin 300399P.R.China Jiangsu Shuguang Opto-Electronics co. Ltd.Yangzhou 225009P.R.China

Luminescent properties of Er^(3+)-and Yb^(3+)-co.doped CaF_(2)upco.version nanoparticles(UCNPs)were investigated in single particle and densely-packed states with a custom-built *** single UCNPs exhibit linear dependency of luminescent intensity on excitation power while the densely-packed UCNPs exhibit a 2-order power law-dependency indicating a two-photon absorption ***-domain luminescence intensity measurements were performed and the curves were fitted to excitationnemission rate functions based on a simplified three-state *** results indicate that the intermediates in single particles are much less and saturated in a short time,and there are strong co.plings of the ground states and intermediate states between neighboring UCNPs in densely packed UCNPs.

关键词： Upco.version nanoparticles single particles luminescence lifetime rate function

Carbon deposition in porous nickel/yttria-stabilized zirco.ia anode under methane atmosphere

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2019年第3期26卷 350-359页

作者： Zhi-yuan Chen Li-jun Wang Xiao-jia Du Zai-hong Sun Fu-shen Li Kuo-Chih Chou State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing Department of Materials Science and Engineering Delft University of Technology co.laborative Innovation Center of Steel technology University of Science and Technology Beijing suzhou Huatsing Jingkun New Energy technology co. Ltd. School of Materials Science and Engineering University of Science and Technology Beijing

A co.mercial solid oxide fuel cell with a Ni/YSZ anode was characterized under a pure methane atmosphere. The amount of deposited carbon increased with an increase in temperature but decreased when the temperature exceeded 700°C. The reactivity of carbon decreased with increasing deposition temperature. Filamentous carbon was deposited from 400 to 600°C, whereas flake carbon was deposited at 700 and 800°C. With increasing temperature, the intensity ratio of the D band over the sum of the G and D bands was co.stant at the beginning and then decreased with the transformation of the carbon morphology. The crystallite size increased from 2.9 to 13 nm with increasing temperature. The results also indicated that the structure of the deposited carbon was better ordered with increasing deposition temperature. In co.parison with pure Ni powders, the interaction between the YSZ substrate and Ni particles co.ld not only modify the carbon deposition kinetics but also reduce the temperature effect on the structure and reactivity variation of carbon.

关键词： solid oxide fuel cell co.ing Raman spectrum hydrocarbon fuel anode

A biobased flame retardant towards improvement of flame retardancy and mechanical property of ethylene vinyl acetate

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2023年第1期34卷 392-396页

作者： Siyi Xu Yue Han Cheng Zhou Jianxi Li Liguo Shen Hongjun Lin co.lege of Geography and Environmental Sciences Zhejiang Normal UniversityJinhua 321004China National Energy Life Evaluation and Management technology Lab of Nuclear Power and Nonmetal Materials Suzhou 215400China CGN-DELTA(Taicang)Testing technology co. Ltd.Suzhou 215400China

A new biobased flame retardant(MHPA)with remarkable co.patibility was synthesized via a facile and low-co.t neutralization reaction of magnesium hydroxide(MH)and phytic acid(PA).By blending the prepared MHPA into ethylene vinyl acetate(EVA),the fire retardancy,smoke suppression and mechanical properties of the co.posites were significantly *** 50 wt%of MH was added into EVA matrix,the value of limiting oxygen index(LOI)reached 26.1%.Whereas,when 10 wt%MH in the EVA co.posites(with initial 50 wt%MH)was replaced by MHPA,the resulted EVA co.posites had a LOI value of 30.8%,indicating high efficiency of addition of MHPA to improve flame ***,the heat release rate(HRR)and total smoke production(TSP)of the EVA co.posites reduced by 54.4%and 27.6%,respectively,suggesting that inco.poration of MHPA co.ld effectively hinder rapid degradation of EVA co.posites during burning *** fire-retardant mechanism may reside in that the MHPA co.bined with MH can present the excellent carbonization and expansion *** study illustrates that the biobased MHPA has a broad application prospect to develop flame-retardant EVA co.posites.

关键词： Flame retardant Smoke suppression Mechanical properties Magnesium hydroxide Phytic acid

In situ non-destructive measurement of Josephson junction resistance using fritting co.tact technique

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2024年第11期33卷 57-61页

作者： Lei Du Hao-Ran Tao Liang-Liang Guo Hai-Feng Zhang Yong Chen Xin Tian Chi Zhang Zhi-Long Jia Peng Duan Guo-Ping Guo CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China origin Quantum co.puting technology (Hefei) co. Ltd.Hefei 230088China

co.ventional four-probe methods for measuring the resistance of Josephson junctions can damage superco.ducting thin films,making them unsuitable for frequency measurements of superco.ducting *** this study,we present a custom probe station measurement system that employs the fritting co.tact technique to achieve in situ,non-destructive measurements of Josephson junction *** experimental results demonstrate that this method allows for accurate prediction of qubit frequency with an error margin of 17.2 ***,the fritting co.tact technique does not significantly affect qubit co.erence time or the integrity of the superco.ducting film,co.firming its non-destructive *** innovative approach provides a dependable foundation for frequency tuning and addressing frequency co.lision issues,thus supporting the advancement and practical deployment of superco.ducting quantum co.puting.

关键词： non-destructive fritting co.tact qubit frequency Josephson junction resistance

co.ponent Optimization and Seepage Simulation Method of Resin Based Permeable Brick

在线全文

学校读者我要写书评

暂无评论

Journal of Renewable Materials 2020年第8期8卷 947-968页

作者： Xiaofu Wang Xiong Zhang Yan He Chunming Lian Key Laboratory of Advanced Civil Engineering Materials of Education Ministry School of Material Science and TechnologyTongji UniversityShanghai201804China School of Civil Engineering Suzhou University of Science and TechnologySuzhou215011China China co.struction Eighth Engineering Bureau co. Ltd.Shanghai200122China

In order to solve the problem of urban surface runoff,it is necessary to study permeable brick *** test and DMA test were used to study the binder material of permeable brick,and a material with the best mechanical properties was selected as the binder of resin based permeable brick;The permeable brick with single gradation and co.tinuous gradation and porosity of 0.1–0.5 gradient is co.structed by 3D modeling *** particle co.position and the seepage simulation results of permeable brick under different design parameters were analyzed;A resin-based permeable brick with micro-pores was prepared using the selected binder and desert sand with high roundness as aggregate,and co.pared with the simulation,its water permeability co.fficient is 3.25×10-2 cm/s and the co.pressive strength is 36.19 *** the seepage simulation of permeable brick,it is known that with the increase of gradation width“value i”,the water permeability co.fficient ***,in order to co.trol the number of aggregate particles and obtain better seepage performance,the wide gradation of i≥4 and the design porosity of 0.3–0.4 should be *** study provides a research basis and a simulation method for the co.ponent optimization of resin based permeable brick.

关键词： Permeable brick epoxy resin aggregate sponge city