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Journal of Materials Science & Technology 2017年第2期33卷 198-203页

作者： Yong Deng Jinhong Li tingting qian Weimin Guan Xiang Wang Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology China University of Geosciences Beijing 100083 China

A new potassium nitrate （KNO3）]diatomite shape-stabilized composite phase change material （SS- CPCM） was prepared by the mixing and sintering method. KNO3 served as the phase change material （PCM） for thermal energy storage, while diatomite acted as the carrier matrix to provide the structural strength and prevent the leakage of PCM. It was found that KNO3 could be retained 65 wt% into pores and on surfaces of diatomite without the leakage of melted KNO3 from the SS-CPCM. The calculated filling rate of molten KNO3 that could enter into the disc-like shape pore of diatomite verified the scanning elec- tronic microscopy images of SS-CPCM. X-ray diffraction and Fourier transform infrared spectroscopy results showed that no reaction occurred between KNO3 and diatomite, performing good compatibility. Accord- ing to the differential scanning calorimetry results, after 50 thermal cycles, the phase change temperatures for melting and freezing of SS-CPCM with 65 wt% KNO3 were changed from 330.23 ℃ and 332.90 ℃ to 330.11 ℃ and 332.84 ℃ and corresponding latent heats varied from 60.52 J/g and 47.30 J/g to 54.64 J/g and 41.25 J/g, respectively. The KNO3/diatomite SS-CPCM may be considered as a potential storage media in solar power plants for thermal energy storage.

关键词： Potassium nitrate Diatomite Shape-stabilized composite phase change material Thermal energy storage

Nano-TiO_2 Decorated Radial-Like Mesoporous Silica: Preparation,Characterization, and Adsorption-Photodegradation Behavior

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Journal of Materials Science & Technology 2017年第11期33卷 1314-1322页

作者： tingting qian Xiaoping Yin Jinhong Li Hong'en Nian Hui Xu Yong Deng Xiang Wang Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology China University of Geosciences Qinghai Institute of Salt Lakes Chinese Academy of Sciences

Supported nanocrystalline TiO2 with a diameter of 15–30 nm was prepared from previously synthesized radial mesoporous silica（RMS） by a post-synthesis method. In addition, their adsorption-photocatalytic activity toward the degradation of methylene blue（MB） was determined. RMS was tailor-made with the main template of CTAB and the SiO2 precursor of TEOS through a facile self-assembly process. The structural, morphological and textural properties of the well-designed TiO2/RMS samples were *** RMS structure was retained after loading TiO2, but its surface area and pore diameter decreased as a result of partial pore blocking. The removal activity of MB for TiO2/RMS was significantly higher than that of commercial TiO2 nanoparticles. The optimal TiO2 loading（20 wt%） on the support could achieve the complete removal of MB within 70 min. The prepared TiO2/RMS particles can be easily separated and display good durability after six reaction cycles.

关键词： Radial-like mesoporous silica Nano-TiO2 Adsorption-photocatalytic degradation

Influence of temperature and light gradient on leaf arrangement and geometry in cucumber canopies: Structural phenotyping analysis and modelling

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Information Processing in Agriculture 2019年第2期6卷 224-232页

作者： tingting qian Xiuguo Zheng Xinyu Guo Weiliang Wen Juan Yang Shenglian Lu Shanghai Academy of Agriculture Sciences Shanghai 201403China College of Computer Science and Information Technology Guangxi Normal UniversityGuilin 541004China Beijing Key Lab of Digital Plant Beijing 100097China Shanghai Technology Engineering Research Center for Digital Agriculture Shanghai 201403China

Accurate structural phenotyping analysis is essential to understand plant architectural adaptation strategy to environment *** aim of this study was to analyze leaf arrangement and geometry influenced by azimuthally generated light gradient;and to simulate static and heterogeneous cucumber canopies using regression equations by considering more geometric *** continuous measurements of structural organ parameters were obtained to fit the organ initiation and expansion *** measurements with three density treatments were obtained to validate model *** describe leaf distribution and orientation characteristics in more detail,azimuth and elevation models were introduced into canopy structure *** distribution frequency was simulated based on leaf area index and solar elevation angle while leaf elevation was simulated based on leaf azimuth and acropetal phytomer *** study provides an important basis for structural phenotyping analysis of cucumber canopy,which is essential for more accurate functional-structural modelling in the future.

关键词： Phenotyping Structure Heterogeneity Model calibration Azimuth Elevation

Hypoxia-inducible factor-1α is a critical transcription factor for CD11b expression on B cells and exerts pivotal roles in ameliorating DSS-induced colitis

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Hypoxia-inducible factor-1α is a critical transcription fac...

Serine 707 of APPL1 is Critical for the Synaptic NMDA Receptor-Mediated Akt Phosphorylation Signaling Pathway

第十三届全国免疫学学术大会

作者： tingting qian Yiwei Chu Luman Wang Department of Immunology School of Basic Medical SciencesFudan University Biotherapy Research Center Fudan University

Hypoxia-inducible factors(HIFs) consist of an oxygen-labile alpha subunit(HIF-α) and a constitutively stable beta subunit(HIF-β). They are key transcription factors for regulating metabolism of immunocytes by inducing cellular response to hypoxia, and are well-known to be involved in regulating T lymphocytes and macrophages activation. However, relatively little is known about HIFs functions in B cells. CD11 b expression on B cells was reported to be required for the regulatory function of B cells. B cells expressed CD11 b generally during the experimental autoimmune hepatitis disease process and ameliorated EAH in mice. Moreover, a significant increase of CD11 b B cells was found in peyer’s patches(PPs) and colorectal lamina propria(LP) during colitis, and PP derived CD11 b B cells could rescue colitis in vivo. We perform this study to investigate the molecular mechanisms regulating B cells to express CD11 b and to relieve autoimmune diseases. Using DSS-induced colitis mice model, we found that CD11 b B cells expressed higher levels of HIF-1α than CD11 b-B cells. The results of B cell-specific knockdown of HIF-1α, CHIP assay and luciferase assay showed that HIF-1α was the critical transcription factor for CD11 b. HIF-1α-dependent glycolysis was confirmed to facilitate CD11 b B cells expansion by examining the expression of the HIF-1α targeted glycolytic genes. In addition, in adoptive transfer assay mice with B cell-specific knockdown of HIF-1α have reduced the number of CD11 b-expressing B cells, which result in exacerbated colitis in rag-1-/-mice. In conclusion, our study demonstrated the key function of the hypoxia-associated transcription factor HIF-1α in driving CD11 b expression in B cells, and in controlling their protective activity in DSS-induced colitis in mice.

关键词： HIF-1α CD11b B cell DSS-induced colitis

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Neuroscience Bulletin 2016年第4期32卷 323-330页

作者： Jiejie Wang Wen Lu Lin Chen Ping Zhang tingting qian Wei Cao Jianhong Luo Department of Neurobiology Zhejiang University School of Medicine The Second Affiliated Hospital Zhejiang University School of Medicine Sir Run Run Shaw Hospital Zhejiang University School of Medicine

Accumulating evidence indicates that the synaptic activation of N-methyl-o-aspartate receptors （NMDARs） has a neuroprotective effect on neurons. Our previous study demonstrated that APPL1 （adaptor protein containing pleckstrin homology domain, phosphotyrosine- binding domain, and leucine zipper motif） mediates the synaptic activity-dependent activation of PI3K-Akt signaling via coupling this pathway with NMDAR-PSD95 （postsynaptic density protein 95） complexes. However, the molecular mechanism underlying this process is still unknown. In the present study, we investigated the inter- action of APPL1 with PSD95 using co-immunocyto- chemical staining and western blotting. We found that the PDZ2 domain of PSD95 is a binding partner of APPL1. Furthermore, we identified serine 707 of APPL1, a pre- dicted phosphorylation site within the PDZ-binding motif at the C-terminus, as critical for the binding of APPL1 to PSD95, as well as for activation of the Akt signaling pathway during synaptic activity. This suggests that serine 707 of APPL1 is a potential phosphorylation site and may be involved in regulating the neuroprotective Akt signaling pathway that depends on synaptic NMDAR activity.

关键词： APPL1 PSD95 Akt NMDA receptors Neuroprotection

经济学视域中的我国煤炭资源利用效率问题分析

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中国煤炭 2008年第11期34卷 40-43页

作者：钱婷婷安徽师范大学国土资源与旅游学院安徽省芜湖市241003

在分析我国煤炭资源利用现状的基础上,着重从经济学角度来分析煤炭资源利用效率问题,并提出相应的对策和建议,以期提高煤炭资源的利用效率,进而实现整个煤炭行业的良性发展。

关键词：煤炭资源煤矿企业稀缺性优化配置

Thermal conductivity enhancement of polyethylene glycol/expanded vermiculite shape-stabilized composite phase change materials with silver nanowire for thermal energy storage

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Thermal conductivity enhancement of polyethylene glycol/expa...

2016年全国矿物科学与工程学术研讨会

作者：邓勇李金洪 tingting qian Weimin Guan Yali Li Xiaoping Yin 中国地质大学(北京)材料科学与工程学院

A series of novel polyethylene glycol-silver nanowire/expanded vermiculite shape-stabilized composite phase change materials(PEG-Ag/EVM ss-CPCMs)were prepared by physical blending and impregnation method to overcome liquid leakage during phase transition and enhance the thermal conductivity of *** these PEG-Ag/EVM ss-CPCMs,PEG served as the phase change material for thermal

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基于改进黑洞算法的阵列天线方向图综合

电波科学学报 2016年第2期31卷 236-242,261页

作者：董健钱婷婷施荣华中南大学信息科学与工程学院长沙410075 中国科学院电磁空间信息重点实验室中国科学技术大学合肥230027

提出一种基于改进黑洞算法的阵列天线方向图综合方法,在可控吸收率的基础上实施后向学习机制,增加种群多样性以避免早熟收敛.针对基本黑洞算法在局部搜索方面的不足引入爬山搜索算子,增加个体搜索深度以提高寻优效率.将所提算法应用于... 详细信息

提出一种基于改进黑洞算法的阵列天线方向图综合方法,在可控吸收率的基础上实施后向学习机制,增加种群多样性以避免早熟收敛.针对基本黑洞算法在局部搜索方面的不足引入爬山搜索算子,增加个体搜索深度以提高寻优效率.将所提算法应用于稀疏天线阵和等距非均匀天线阵的方向图综合,仿真结果验证了所提算法解决该类问题的有效性.

关键词：阵列天线黑洞算法方向图综合

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聚天冬氨酸衍生物的合成及其性能研究

工业水处理 2011年第3期31卷 39-42页

作者：钱婷婷高灿柱山东大学环境科学与工程学院山东济南250100

合成了含不同羟基比例的聚天冬氨酸衍生物,通过试验对其阻CaCO3、CaSO4和Ca3(PO4)2垢性能进行了评价,并对该衍生物的结构进行了表征。结果表明:当合成原料n(异丙醇胺)∶n(PSI)为2.4,合成药剂投加质量浓度为8mg/L时,其对Ca3(PO4)2的阻垢... 详细信息

合成了含不同羟基比例的聚天冬氨酸衍生物,通过试验对其阻CaCO3、CaSO4和Ca3(PO4)2垢性能进行了评价,并对该衍生物的结构进行了表征。结果表明:当合成原料n(异丙醇胺)∶n(PSI)为2.4,合成药剂投加质量浓度为8mg/L时,其对Ca3(PO4)2的阻垢率可达96.0%。改性后药剂对CaCO3的阻垢率有一定提高,但对CaSO4的阻垢性能影响不大。反应产物的核磁共振谱图验证了聚天冬氨酸分子中羟基的引入。

关键词：聚天冬氨酸衍生物阻垢

果菜类蔬菜作物同化产物分配影响因素研究进展

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中国农学通报 2010年第16期26卷 211-216页

作者：钱婷婷郭新宇国家农业信息化工程技术研究中心北京100097

蔬菜同化产物的分配直接决定其产量和品质,定性分析并定量化描述不同因素对蔬菜同化产物分配的影响具有重要研究意义。简述果菜类蔬菜同化物生产与分配的关系,并着重综述生育进程、器官之间的相互作用、环境条件的限制、植物生长调节剂... 详细信息

蔬菜同化产物的分配直接决定其产量和品质,定性分析并定量化描述不同因素对蔬菜同化产物分配的影响具有重要研究意义。简述果菜类蔬菜同化物生产与分配的关系,并着重综述生育进程、器官之间的相互作用、环境条件的限制、植物生长调节剂以及人为栽培管理措施对果蔬类蔬菜同化物分配的影响,并对今后的研究方向进行了展望。

关键词：果菜类蔬菜同化物分配影响因素