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地理设计:新思维与新手法

中国园林 2010年第4期26卷 35-36页

作者：唐艳红美国麻省大学清华大学 ECOLAND易兰规划设计事务所

在杰克·丹哲芒(Jack Dangermond)主持的地理设计峰会上,来自世界各地的专家集思广益,探讨地理设计的概念、应用及未来,从学术上打破地理学、城市规划、园林学、建筑学与土木工程学的界限,分享GIS应用,并从技术上对人居环境规划中所面... 详细信息

在杰克·丹哲芒(Jack Dangermond)主持的地理设计峰会上,来自世界各地的专家集思广益,探讨地理设计的概念、应用及未来,从学术上打破地理学、城市规划、园林学、建筑学与土木工程学的界限,分享GIS应用,并从技术上对人居环境规划中所面临的问题提出了解决方法。凯文·林奇、吴良镛等在传统的设计基础理论方面作出了重大贡献,但我们今天面临的环境问题需要风景园林、建筑学、城市规划等从业人员不断探索、了解更有效的方法。地理设计概念的提出和方法应用,及时为我们提供了创造性地认识解决规划设计问题的有效途径,我们应积极地参与这种跨行业的理论和实践探索,更应多了解、应用地理信息系统这个有效工具。

关键词：风景园林地理设计地理信息系统城市规划景观设计环境

Light-driven sextuple theranostics:nanomedicine involving second near-infrared AIE-active Ir(Ⅲ)complex for prominent cancer treatment

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Science China Chemistry 2024年第7期67卷 2314-2324页

作者： Xue Liu Jiangao Li Fei Zhang Dingyuan yan Lei Wang Dong Wang Ben Zhong tang Center for AIE Research Shenzhen Key Laboratory of Polymer Science and TechnologyGuangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Material Science and EngineeringShenzhen UniversityShenzhen 518060China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China School of Science and Engineering Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong KongShenzhen(CUHK-Shenzhen)Shenzhen 518172China

Light-driven cancer theranostics has shown inexhaustible and vigorous vitality by virtue of its high efficacy,prominent controllability and *** of an all-round theranostic material simultaneously affording both multimodal diagnosis imaging and synergistic phototherapy would be an appealing yet significantly challenging ***,a novel nanomedicine Ir@PPEG-MeEPO was ingeniously constructed by integrating beforehand1O2-charged amphiphilic polymer and well-tailored Ir(Ⅲ)complex IrDPTP,which was featured by second near-infrared(NIR-Ⅱ)aggregation-induced emission(AIE)tendency,efficient reactive oxygen species(ROS)generation,good photothermal conversion efficiency and high-performance hydrogen gas *** the best of our knowledge,IrDPTP held the longest emission wavelength among all reported AIE Ir(Ⅲ)***,Ir@PPEG-MeEPO was capable of controllably releasing ROS via triggered photothermal effect upon NIR irradiation,making it well-adapted to hypoxic environment of *** distinctive characteristics of Ir@PPEG-MeEPO endowed it with unprecedented performance on sextuple theranostics comprised of NIR-Ⅱfluorescence-photoacoustic-photothermal trimodal imaging and photodynamic-photothermal-hydrogen trimodal therapy,witnessed by the precise tumor diagnosis and complete tumor *** study would open up new perspectives for the exploration of superior nanomedicine for practical cancer theranostics.

关键词： aggregation-induced emission NIR-II emission cancer theranostics multimodal diagnosis imaging multimodal therapy

Improving chitosan-based composite membrane by introducing a novel hybrid functional nano-hydroxyapatite with carboxymethyl cellulose and phytic acid

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Frontiers of Chemical Science and Engineering 2024年第6期18卷 1-15页

作者： Liuyun Jiang Yingjun Ma Shuo tang Yuqing Wang yan Zhang Shengpei Su Xiang Hu Jun He National&Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources Key Laboratory of Chemical Biology&Traditional Chinese Medicine Research(Ministry of Education)College of Chemistry and Chemical EngineeringHunan Normal UniversityChangsha 410081China State Key Laboratory Developmental Biology of Freshwater Fish School of Life ScienceHunan Normal UniversityChangsha 410081China Hunan Provincial Key Laboratory of Regional Hereditary Birth Defects Prevention and Control Changsha Hospital for Matemal&Child Health Care Aiffiliated to Hunan Normal UniversityChangsha 410081China

A functional hybrid nano-hydroxyapatite(carboxymethyl cellulose-phytic acid-n-HA,CMC-PA-n-HA)was prepared by adding CMC and *** results of Fourier transformation infrared spectra,X-ray diffraction,thermal gravimetric analysis and dispersion experiments indicated that the addition of CMC and PA affected the morphology,crystallinity and crystal size of hybrid n-HA,and CMC endowed hybrid n-HA with excellent *** electron microscope results showed that CMC-PA-n-HA nanoparticle could be uniformly dispersed in chitosan(CS)matrix to obtain composite membrane by casting technology,so that the highest tensile strength of CMC-PA-n-HA/CS composite membrane was 69.64%and 144.45%higher than that of CS membrane and n-HA/CS composite membrane,*** angle test showed that CMC-PA-n-HA effectively improved hydrophilicity of the CS *** simulated body fluid immersion results indicated that the CMC-PA-n-HA/CS composite membrane not only exhibited good degradability but also promoted bone-like apatite *** cell proliferation experiments proved that the introduction of PA made the composite membrane have better cell adhesion and proliferation *** tests demonstrated that PA could effectively improve the antibacterial properties of the composite membrane,which is expected to be applied as guide bone tissue regeneration membrane.

关键词： nano-hydroxyapatite chitosan dispersion guide bone tissue regeneration membrane

内蒙古兴安盟参考作物蒸散量时空变化及敏感性分析

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生态与农村环境学报 2019年第4期35卷 419-425页

作者：高红霞唐红艳李敏内蒙古兴安盟气象局内蒙古乌兰浩特137400 内蒙古生态与农业气象中心内蒙古呼和浩特010051

为探讨气候变暖背景下内蒙古兴安盟参考作物蒸散量的变化特征及其对主要气象要素的敏感性,基于兴安盟8个气象观测站1973—2017年逐日气象观测数据,通过联合国粮食及农业组织推荐的Penman-Monteith公式,计算兴安盟地区1973—2017年生长... 详细信息

为探讨气候变暖背景下内蒙古兴安盟参考作物蒸散量的变化特征及其对主要气象要素的敏感性,基于兴安盟8个气象观测站1973—2017年逐日气象观测数据,通过联合国粮食及农业组织推荐的Penman-Monteith公式,计算兴安盟地区1973—2017年生长季(4—9月)逐日参考作物蒸散量(ET_0),采用气候倾向率、累积距平、响应曲线和敏感系数等方法分析了该时段内ET_0及主要气象要素的变化特征,并探讨了ET_0对气温、平均风速、日照时数、平均水汽压的敏感性。结果表明:(1)兴安盟生长季平均气温、最高气温、最低气温呈显著上升趋势(P<0. 01),平均风速呈下降趋势,日照时数和平均水汽压呈上升趋势,后3者变化趋势均未通过显著性检验。(2)近45 a来兴安盟生长季ET_0平均值为765. 9 mm,高值区主要分布在突泉县大部以及科右中旗中部,低值区主要分布在阿尔山市西北部。兴安盟生长季平均日参考蒸散量呈增加趋势,但增加趋势不显著,兴安盟1973—2017年生长季日平均ET_0的变化大致可划分为5个特征明显的阶段。(3)近45 a来,阿尔山、索伦、巴彦呼舒生长季平均日ET_0呈显著增加趋势(P<0. 05),突泉变化趋势不明显,音德尔、乌兰浩特呈弱下降趋势。(4)兴安盟生长季ET_0对气温、平均风速、日照时数为正敏感,且对气温最敏感,其次是平均水汽压,对平均风速敏感性最低,仅对平均水汽压负敏感。(5)ET_0对气温、日照时数和平均水汽压的敏感区主要分布在兴安盟东部和南部地区,北部大部以及东南角为ET_0对平均风速敏感区。

关键词：参考作物蒸散量 Penman-Monteith公式敏感性分析兴安盟内蒙古

(Benzimidazolium)_(2)GeI_(4):A layered two-dimensional perovskite with dielectric switching and broadband near-infrared photoluminescence

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Chinese Journal of Structural Chemistry 2024年第6期43卷 45-49页

作者： Xuan Zhu Lin Zhou Xiao-Yun Huang yan-Ling Luo Xin Deng Xin yan yan-Juan Wang yan Qin Yuan-Yuan tang Ordered Matter Science Research Center Nanchang UniversityNanchang330031People's Republic of China

Two-dimensional(2D)lead halide perovskites have attracted tremendous attention due to their outstanding physical ***,the presence of toxic lead is a major problem for large-scale ***,we report the synthesis,phase transition,dielectric and photoluminescence(PL)properties of a lead-free 2D Ge-based perovskite(BIM)_(2)GeI_(4)(BIM=benzimidazolium)which experiences a phase transition at 405 K accompanied by an order-disorder change of organic ***,the step-like dielectric transition near the phase transition temperature makes it suitable for dielectric ***,(BIM)_(2)GeI_(4)has a direct bandgap of 2.23 eV and broadband emission from 550 to 1000 nm,implying its unique optical property for potential near-infrared lighting and *** work provides a fresh example for the development of lead-free 2D Ge-based perovskite with potential applications in the fields of optoelectronics and high temperature dielectric switching.

关键词： Dielectric switching Photoluminescence Two-dimensional perovskite Lead-free perovskite

Insight into the role of ethylene glycol on thermodynamics and nucleation kinetics of dimethyl terephthalate in mixed solvent system

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Particuology 2024年第2期85卷 1-12页

作者： Yujin Zhang Chunyan Shi Jing tang Li Liu Dongxia yan Qing Zhou Xingmei Lu Songyan Jia College of Chemical Engineering Shenyang University of Chemical TechnologyShenyang110142China Bejing Key Laboratoryoflonic Liquids Clean Process CAS Key LaboratoryofGreen Process and EngineeringState Key Laboratoryof Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing100190China School of Chemistry and Chemical Engineering Qingdao UniversityQingdao266071China Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou450001China School of Chemical Engineering University of Chinese Academy of SciencesBeijing100049China

Dissolution and nucleation are two essential processes for industrial *** paper in-vestigates the effect of ethylene glycol addition on the crystallization behavior of dimethyl terephthalate(DMT)in *** DMT solubility in mixed solvent system(methanol-ethylene glycol)was deter-mined by isothermal satiation approach,and the solubility was associated using seven *** model fitting results were consistent with the experimental *** on the results,the metastable zone width(MSZW)of DMT was detected by the polythermal approach;the modified Sangwal's theory was used to investigate the nucleation behavior,which can provide a new way of thought for better analysis of the crystallization *** results demonstrated that MSZW was associated with various elements,such as cooling rate,saturation temperature and mass fraction of ethylene *** addition of ethylene glycol slowed down the nucleation rate as shown by the broadening of *** derive the solid-liquid interface energy,the nucleation driving force,the critical nucleation size and the critical Gibbs free energy according to the classical nucleation *** is demonstrated that the nucleation driving force and the solid-liquid interface energy are dependent and jointly influence the MSZW.

关键词： Dissolution Nucleation Solubility Apparent thermodynamic parameters Metastable zone width Solid-liquid interface energy

Influence of powder oxidation on powder properties and formability in H13 hot-work steels processed by electron beam melting

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Journal of Iron and Steel Research International 2024年第4期31卷 924-932页

作者： Wei Liu yan Wang Li-xiong Han Ying-kang Wei Hui-ping tang Shi-feng Liu School of Metallurgical Engineering Xi'an University of Architecture and TechnologyXi'an 710055ShaanxiChina School of Engineering Zhejiang University City CollegeHangzhou 310015ZhejiangChina

The oxygen content of metal powder is decisive for the recyclability of *** research on the effect of oxygen content on powder properties and material formability has practical significance for economical production with additive manufacturing while preventing the waste of ***,we deliberately oxidized the powder by baking at high temperature to increase the oxygen content in the powder and gave the calculation method of the oxygen content in the powder oxidation *** majority of oxygen element was found in the oxide particles in the powder and the oxide flm on the powder surface,which did affect the flowability of the *** is worth noting that the increase in the oxygen content does not change the phase of H13 steel,but it can promote the molten pool flow and obtain a smoother *** increase in the oxygen content in the powder is not the decisive factor for the formability and defects of the printed *** is the combined effect of the powder deformation,the increase in the oxygen content,and the impurity pollution after repeated use,which leads to the limitation of repeated utilization of the powder.

关键词： Additive manufacturing Electron beam melting H13 steel powder-Powder oxidation

Dopamine in the prefrontal cortex plays multiple roles in the executive function of patients with Parkinson's disease

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Neural Regeneration Research 2024年第8期19卷 1759-1767页

作者： Zihang Zhou Yalong yan Heng Gu Ruiao Sun Zihan Liao Ke Xue Chuanxi tang Department of Neurobiology Xuzhou Key Laboratory of NeurobiologyXuzhou Medical UniversityXuzhouJiangsu ProvinceChina

Parkinson’s disease can affect not only motor functions but also cognitive abilities,leading to cognitive *** common issue in Parkinson’s disease with cognitive dysfunction is the difficulty in executive *** functions help us plan,organize,and control our actions based on our *** brain area responsible for executive functions is called the prefrontal co *** acts as the command center for the brain,especially when it comes to regulating executive *** role of the prefrontal cortex in cognitive processes is influenced by a chemical messenger called ***,little is known about how dopamine affects the cognitive functions of patients with Parkinson’s *** this article,the authors review the latest research on this *** start by looking at how the dopaminergic syste m,is alte red in Parkinson’s disease with executive ***,they explore how these changes in dopamine impact the synaptic structure,electrical activity,and connection components of the prefrontal *** authors also summarize the relationship between Parkinson’s disease and dopamine-related cognitive *** information may offer valuable insights and directions for further research and improvement in the clinical treatment of cognitive impairment in Parkinson’s disease.

关键词： dopamine dopamine receptor dopamine transporter executive dysfunction neural network neural oscillation prefrontal cortex synaptic plasticity

Variational Reconstruction and Simulation Experiments of Sea Surface Wind Field for Ocean Data Buoy

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Journal of Ocean University of China 2024年第3期23卷 577-582页

作者： LI Yunzhou HUANG Sixun yan Shen SUN Xuejin QI Suiping WANG Zhongqiu tang Xiaoyu College of Meteorology and Oceanography National University of Defense TechnologyChangsha 410073China Institute of Oceanographic Instrumentation Qilu University of Technology(Shandong Academy of Sciences)Qingdao 266061China State Key Laboratory of Industrial Control Technology College of Control Science and EngineeringZhejiang UniversityHangzhou 310027China Laoshan Laboratory Qingdao 266237China

The sea surface wind field is an important physical parameter in oceanography and *** the continuous refinement of numerical weather prediction,air-sea interface materials,energy exchange,and other studies,three-dimensional(3D)wind field distribution at local locations on the sea surface must be measured *** current in-situ observation of sea surface wind parameters is mainly achieved through the installation of wind sensors on ocean data ***,the results obtained from this single-point measurement method cannot reflect wind field distribution in a vertical direction above the sea ***,the present paper proposes a theoretical framework for the optimal inversion of the 3D wind field structure variation in the area where the buoy is *** variation analysis method is first used to reconstruct the wind field distribution at different heights of the buoy,after which theoretical analysis verification and numerical simulation experiments are *** results indicate that the use of variational methods to reconstruct 3D wind fields is significantly effective in eliminating disturbance errors in observations,which also verifies the correctness of the theoretical analysis of this *** findings of this article can provide a reference for the layout optimization design of wind measuring instruments in buoy observation systems and also provide theoretical guidance for the design of new observation buoys in the future.

关键词： moored buoy three-dimensional wind field distribution variational analysis wind field reconstruction