检索结果-南通市图书馆

Decoding epigenetic codes: new frontiers in exploring recovery from spinal cord injury

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2020年第9期15卷 1613-1622页

作者： Bo-Yin Zhang Peng-yu Chang Qing-San zhu yu-hang zhu Saijilafu Department of Orthopedic Surgery China-Japan Union Hospital of Jilin UniversityChangchunJilin ProvinceChina Department of Radiotherapy The First Bethune Hospital of Jilin UniversityChangchunJilin ProvinceChina Department of Orthopedics The First Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina

Spinal cord injury that results in severe neurological disability is often *** poor clinical outcome of spinal cord injury is mainly caused by the failure to reconstruct the injured neural *** intrinsic and extrinsic determinants contribute to this inability to *** regulation acts as the driving force for multiple pathological and physiological processes in the central nervous system by modulating the expression of certain critical *** studies have demonstrated that post-SCI alteration of epigenetic landmarks is strongly associated with axon regeneration,glial activation and *** findings not only establish a theoretical foundation for further exploration of spinal cord injury,but also provide new avenues for the clinical treatment of spinal cord *** review focuses on the epigenetic regulation in axon regeneration and secondary spinal cord ***,these discoveries are a selection of epigenetic-based prognosis biomarkers and attractive therapeutic targets in the treatment of spinal cord injury.

关键词： axon regeneration epigenetic biomarkers epigenetic modification histone microRNA prognosis secondary injury spinal cord injury

Evolution of MnO–SiO2–Al_(2)O_(3)–MgO inclusions during heat treatment at 1100℃

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research International 2024年第5期31卷 1221-1231页

作者： Xu-bo Lei Jian-li Li Qiang Zeng hang-yu zhu yue yu The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan430081HubeiChina Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking Wuhan University of Science and TechnologyWuhan430081HubeiChina Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan430081HubeiChina

To investigate the evolutionary behavior of the MnO–SiO_(2)–Al_(2)O_(3)–MgO inclusions during heat treatment,water quenched samples were isothermally held at 1100°C for 120 min in Ar and air atmosphere,and the obtaining samples were analyzed by X-ray diffraction,scanning electron microscopy and energy dispersive *** showed that 3MnO·Al_(2)O_(3)·3SiO_(2)and MnO·SiO_(2)were detected in the 5 wt.%MgO system after isothermal holding in Ar atmosphere,while MgO·Al_(2)O_(3),MnO·SiO_(2)and Mn7O8·SiO4 were detected in air *** evolutionary behavior of the 10,15 and 20 wt.%MgO systems after isothermal holding in different atmosphere were *** affected the solid phase transformation of the low MgO content *** calculation results of FactSage 8.1 showed that MgO·Al_(2)O_(3)was formed in the 5 wt.%MgO system with air *** solid phase transformation was accompanied by grain coarsening during the isothermal holding *** differences in the solid phase transformation in different atmosphere of the 5 wt.%MgO system indicated that it was a gas-phase transport grain coarsening *** enrichment of Al element in the liquid phase region at the grain edges,the homogeneous distribution of Mg element and the disappearance of the liquid phase within the crystal revealed that other MgO content systems were liquid–solid transport grain coarsening mechanism.

关键词： Evolution Glassy phase Inclusion Heat treatment MgO·Al_(2)O_(3)

Effect of Fe2O3 on the size and components of spinel crystals in the CaO–SiO2–MgO–Al2O3–Cr2O3 system

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9期26卷 1113-1119页

作者： Qi-qiang Mou Jian-li Li Qiang Zeng hang-yu zhu The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081China Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081China Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking Wuhan University of Science and TechnologyWuhan 430081China

size of spinel crystals in the CaO–SiO2–MgO –Al2O3–Cr2O3 system was investigated using lab experiments carried out in a carbon tube furnace. Scanning electron microscopy with energy-dispersive X-ray spectroscopy（SEM–EDS） and X-ray diffraction（XRD） were used to analyze the microstructure, components, and the mineral phases of synthetic slags. FactS age 7.1 was used to calculate the crystallization process of the molten slag. The results showed that the addition of Fe2O3 promoted the precipitation of spinel crystals and inhibited the formation of dicalcium silicate. The size of spinel crystals increased from 2.74 to 8.10 μm and the contents of chromium and iron in the spinel varied as the Fe2O3 addition was increased from 0 to 20 wt%. Fe2O3 thermodynamically provided the spinel-forming components to enhance the formation of FeCr2O4, MgFe2O4, and Fe3O4. The addition of Fe2O3 increased the fraction of liquid phase in a certain temperature range and promoted diffusion by decreasing the slag’s viscosity. Therefore, Fe2O3 is beneficial to the growth of spinel crystals in stainless steel slag.

关键词： ferric oxide stainless steel slag spinel crystal size chromic oxide

Green building materials lit up by electromagnetic absorption function:A review

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2022年第17期112卷 329-344页

作者： Ting-Ting Liu Mao-Qing Cao Yong-Sheng Fang yu-hang zhu Mao-Sheng Cao School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Heilongjiang Institute of Construction Technology Harbin 150025China

Healthy and livable living environments,as well as anti-electromagnetic(EM)radiation buildings,are the long-term goals of human *** introduction of advanced EM wave absorbing materials into buildings is one of the most feasible ways to address the increasing EM pollution in building ***-efficiency,broadband,low-cost and good building performance EM wave absorbing materials,as an important support in the field of sustainable building,has gradually become the hotspot ***,we review the research progress of building materials with EM wave absorption functions,and comb their classification,including cement,concrete,ceramics,and prefabs,especially highlighting the advanced coating *** objectively outline and evaluate the latest technology of building materials with EM wave absorption performance,and discuss the main problems and bottlenecks,highlighting potential research opportunities.

关键词： Anti-electromagnetic radiation building Electromagnetic wave absorption Building materials Green building

Effect of ferromanganese additions on non-metallic inclusion characteristics in TRIP steel

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research International 2022年第9期29卷 1464-1473页

作者： Wei-sheng Wang hang-yu zhu Ming-ming Song Jian-li Li Zheng-liang Xue The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081HubeiChina

The inclusion characteristics in extra low-carbon ferromanganese(ELC-FeMn),low-carbon ferromanganese(LC-FeMn),mid-carbon ferromanganese(MC-FeMn),and high-carbon ferromanganese(HC-FeMn)were evaluated by scanning electron microscopy coupled with energy dispersive *** effect of FeMn alloys on the cleanliness of transformation-induced plasticity(TRIP)steel was studied based on laboratory-scale experiments and thermodynamic *** results show that the main inclusions in ELC-FeMn are MnO-MnS and MnS,and the dominant inclusions in LC-FeMn and MC-FeMn are MnO,MnO-SiO_(2),and MnO-SiO_(2)-*** inclusions in HC-FeMn are *** MnO-SiO_(2)inclusion,a certain number of Al-,Si-,and Ti-containing inclusions and enrichment phases of Pb,Sn,and P are observed in *** FeMn alloy addition,the main inclusion in steel is *** alloying with the four different grades of FeMn alloy,the main inclusions in TRIP steel are Al_(2)O_(3),AIN,MnS,AlO3-AIN,AINMnS,and Al_(2)O_(3)-*** MnO and SiO_(2)inclusions from FeMn alloys are not detected in TRIP steel.

关键词： Non-metallic inclusion Ferromanganese TRIP steel.Cleanliness FeMn alloy High Al steel

Reduction characteristics of molybdenum trioxide with aluminum and silicon

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare Metals 2018年第7期37卷 621-624页

作者： hang-yu zhu Rong Gao Wu-Tao Jin Long-Wu Qiu Zheng-Liang Xue State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and Technology School of Materials and Metallurgy Wuhan University of Science and Technology

Thermodynamics for reduction of molybdenum oxides by aluminum and silicon were calculated, and the results show that reduction reaction is feasible at a certain temperature region. Compared to the presence of CaO or CaCO3, reduction products of molybdenum trioxide with aluminum and silicon at various temperatures were detected by X-ray diffraction （XRD）. Results show that molybdenum trioxide is reduced by aluminum or silicon step by step, and the intermediate product is MOO2. At 1000 ℃, molybdenum trioxide could be reduced to metal Mo by aluminum, and in the presence of CaO, metal Mo as the reduction product appears even at 800 ℃. In contrast, silicon could barely reduce molybdenum trioxide to metal Mo even at 1200℃. In the presence of CaO or CaCO3, reducibility of silicon increases significantly, and the reduction products are metal Mo and MoSi2. Altogether, CaO or CaCO3 performs two major roles in reduction process： restraining sublimation of MoO3 and decreasing the temperature of reducing MoO3 to metal Mo.

关键词： Molybdenum trioxide Reduction Aluminum Silicon Metallothermic

Predictive risk factors for recollapse of cemented vertebrae after percutaneous vertebroplasty: A meta-analysis

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2021年第12期9卷 2778-2790页

作者： Yi-hang Ma Zhi-Sen Tian Hao-Chuan Liu Bo-Yin Zhang yu-hang zhu Chun-Yang Meng Xiang-Ji Liu Qing-San zhu Department of Spine Surgery China-Japan Union Hospital of Jilin UniversityChangchun 130033Jilin ProvinceChina

BACKGROUND As one of the most common complications of osteoporosis,osteoporotic vertebral compression fracture(OVCF)increases the risk of disability and mortality in elderly *** vertebroplasty(PVP)is considered to be an effective,safe,and minimally invasive treatment for *** recollapse of cemented vertebrae is one of the serious complications of ***,the risk factors associated with recollapse after PVP remain *** To identify risk factors for the recollapse of cemented vertebrae after PVP in patients with *** A systematic search in EMBASE,MEDLINE,the Cochrane Library,and PubMed was conducted for relevant studies from inception until March *** investigating risk factors for the recollapse of cemented vertebrae after PVP without additional trauma were selected for *** ratios(ORs)or standardized mean differences with 95%confidence interval(CI)were calculated and heterogeneity was assessed by both the chi-squared test and the I-squared *** methodological quality of the included studies was assessed according to the Newcastle-Ottawa *** A total of nine case-control studies were included in our meta-analysis comprising 300 cases and 2674 *** significant risk factors for the recollapse of cemented vertebrae after PVP in OVCF patients were fractures located at the thoracolumbar junction(OR=2.09;95%CI:1.30 to 3.38;P=0.002),preoperative intravertebral cleft(OR=2.97;95%CI:1.93 to 4.57;P<0.00001),and solid lump distribution pattern of the cement (OR = 3.11;95%CI: 1.91 to 5.07;P < 0.00001).The analysis did not support that age, gender, lumbar bone mineral density,preoperative visual analogue scale score, injected cement volume, intradiscalcement leakage, or vertebral height restoration could increase the risk forcemented vertebra recollapse after PVP in *** meta-analysis suggests that thoracolumbar junction fractures, preoperativeintravertebral cleft, and solid lump

关键词： Vertebroplasty Osteoporotic vertebral compression fracture Risk factors Recollapse Cemented vertebrae Meta-analysis

Polymerizing Ladder-type Heteroheptacene-Cored Small-Molecule Acceptors for Efficient All-Polymer Solar Cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2023年第7期41卷 1018-1026页

作者： Peng Wang yu-hang zhu Hong-Xin Tao yun-Long Ma Dong-Dong Cai Qi-Sheng Tu Ruo-Chuan Liao Qing-Dong Zheng State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou350002China School of Physical Science and Technology ShanghaiTech UniversityShanghai201210China State Key Laboratory of Coordination Chemistry College of Engineering and Applied SciencesNanjing UniversityNanjing210023China

One important subject in the field of all-polymer solar cells (all-PSCs) is the exploration of electron-deficient building blocks with optimized physicochemical properties to promote the performance of polymer acceptors. Here, two ladder-type heteroheptacene-containing small-molecule acceptors with branched 2-octyldodecyl or 2-hexyldecyl side-chains are synthesized and polymerized with the thiophene co-monomer to afford polymer acceptors (PW-OD and PW-HD) with strong near-infrared absorption. Experimental results reveal that the alkyl chain length has a large impact on the molecular packing behavior of the resulting polymers, which in turn affects their light-absorbing and charge transport properties, and thus the photovoltaic performance of the final devices. When blended with the polymer donor PM6, PW-HD-based all-PSCs deliver a higher power conversion efficiency (PCE) of 9.12% compared to the PCE of 6.47% for the PW-OD-based all-PSCs, mainly due to its more ordered inter-chain packing and more favorable blend morphology. This work provides a promising building block for the development of high-performance narrow-bandgap polymer acceptors and highlights the importance of side-chain substitution in optimizing the photovoltaic performance of polymer acceptors.

关键词： All-polymer solar cells Polymer acceptors Ladder-type heteroheptacene Power conversion efficiency

Towards a multidimensional scientific approach to improve clinical practices for infertility treatment

在线全文

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2018年第11期19卷 815-817页

作者： yu-hang zhu Fan QU Women's Hospital Zhejiang University School of Medicine Institute for Women's Health University College London

Polycystic ovary syndrome （PCOS） is the most common metabolic and endocrine disorder in women, leading to infertility. However, there is no general agreement concerning how to diagnose and treat PCOS. The Rotterdam consensus statement from the European Society of Human Reproduction and Embryology/American Society for Reproductive Medicine, the Chinese diagnostic criteria and consensus statement, and the clinical practice guideline from the Endocrine Society in the USA are widely recognized.

关键词：多维度不孕症临床实践