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The Climate Response to Global Forest Area Changes under Different Warming Scenarios in China

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Advances in Atmospheric Sciences 2023年第6期40卷 1073-1088页

作者： ying HUANG Anning HUANG Jie tan School of Atmospheric Sciences Nanjing UniversityNanjing 210023China Frontiers Science Center for Critical Earth Material Cycling Nanjing UniversityNanjing 210023China Glarun Technology Co. Ltd.Nanjing 211106China

Human activities have notably affected the Earth’s climate through greenhouse gases(GHG), aerosol, and land use/land cover change(LULCC). To investigate the impact of forest changes on regional climate under different shared socioeconomic pathways(SSPs), changes in surface air temperature and precipitation over China under low and medium/high radiative forcing scenarios from 2021 to 2099 are analyzed using multimodel climate simulations from the Coupled Model Intercomparison Project Phase 6(CMIP6). Results show that the climate responses to forest changes are more significant under the low radiative forcing scenario. Deforestation would increase the mean, interannual variability, and the trend of surface air temperature under the low radiative forcing scenario, but it would decrease those indices under the medium/high radiative forcing scenario. The changes in temperature show significant spatial heterogeneity. For precipitation, under the low radiative forcing scenario, deforestation would lead to a significant increase in northern China and a significant decrease in southern China, and the effects are persistent in the near term(2021–40), middle term(2041–70), and long term(2071–99). In contrast, under the medium/high radiative forcing scenario, precipitation increases in the near term and long term over most parts of China, but it decreases in the middle term, especially in southern, northern,and northeast China. The magnitude of precipitation response to deforestation remains comparatively small.

关键词： land use/land cover change deforestation radiative forcing scenario regional climate

Formation and characterization of core-shell CL-20/TNT composite prepared by spray-drying technique

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Defence Technology（防务技术） 2021年第6期17卷 1936-1943页

作者： Chang-gui Song Xiao-dong Li yue Yang Hui-min Liu ying-xin tan Jing-yu Wang School of Environment and Safety Engineering North University of ChinaTaiyuan030051China

The core-shell 2,4,6,8,10,12-Hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane/2,4,6-Trinitrotoluene(CL-20/TNT)composite was prepared by spray-drying method in which sensitive high energy explosive(CL-20)was coated with insensitive explosive(TNT).The structure and properties of different formulations of CL-20/TNT composite and CL-20/TNT mixture were characterized by scanning electron microscopy(SEM),Transmission electron microscopy(TEM),Laser particle size analyzer,X-ray photoelectron spectroscopy(XPS),X-ray diffraction(XRD),differential scanning calorimetry(DSC),impact sensitivity test and detonation *** results of SEM,TEM,XPS and XRD show that e-CL-20 particles are coated by *** the ratio of CL-20/TNT is 75/25,core-shell structure is well formed,and thickness of the shell is about 20e30 *** the analysis of heat and impact show that with the increase of TNT content,the TNT coating on the core-shell composite material can not only catalyze the thermal decomposition of core material(CL-20),but also greatly reduce the impact *** with the CL-20/TNT mixture(75/25)at the same ratio,the characteristic drop height of core-shell CL-20/TNT composite(75/25)increased by 47.6%and the TNT coating can accelerate the nuclear decomposition in the CL-20/TNT ***,the preparation of the core-shell composites can be regarded as a unique means,by which the composites are characterized by controllable decomposition rate,high energy and excellent mechanical sensitivity and could be applied to propellants and other fields.

关键词： Energetic materials CL-20(2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane) TNT(2,4,6-Trinitrotoluene) Spray-drying method Core-shell structure

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InSe单层中点缺陷的第一性原理研究

原子与分子物理学报 2025年第6期42卷 167-173页

作者：何诗颖谢瑞恬刘娟邹代峰赵宇清许英廖雨洁湖南科技大学物理与电子科学学院湘潭411201 智能传感器与新型传感器材料湖南省重点实验室湘潭411201 山西大学化学化工学院太原030006 武汉大学动力与机械学院武汉430072

InSe是Ⅲ-Ⅵ族化合物中的主要成员,由于其具有优异的电学性能,在太阳能电池、固体电池组等领域受到广泛的关注.光电材料及器件的优良特性由电子结构决定,而Ⅲ-Ⅵ族化合物中的点缺陷对电子结构具有重要的调控,且单层InSe中点缺陷的Perdew... 详细信息

InSe是Ⅲ-Ⅵ族化合物中的主要成员,由于其具有优异的电学性能,在太阳能电池、固体电池组等领域受到广泛的关注.光电材料及器件的优良特性由电子结构决定,而Ⅲ-Ⅵ族化合物中的点缺陷对电子结构具有重要的调控,且单层InSe中点缺陷的Perdew-Burke-Ernzerhof(PBE)和Heyd-Scuseria-Ernzerhof(HSE)对比研究尚且缺乏.本文基于密度泛函理论的第一性原理计算,对单层InSe的硒空位、铟空位、溴替代硒、硫替代硒、碲替代硒、镓替代铟、锡替代铟和铊替代铟的缺陷形成能和稳定性进行了研究.结果表明:在缺铟和富铟条件下,硫替代硒和镓替代铟的缺陷形成能低且可以有效的降低体系总能,提高体系的稳定性.溴替代硒具有较小的缺陷形成能,但较大的体系总能表明溴替代硒的缺陷体系不稳定.在缺铟条件下易形成铊替代铟缺陷;在富铟条件下易形成碲替代硒缺陷.上述研究结果有助于理解点缺陷对Ⅲ-Ⅵ族化合物稳定性的影响,同时也为未来实验上设计基于InSe的高效的光电子器件提供理论依据.

关键词：单层InSe 稳定性形成能点缺陷

维普期刊数据库博看期刊

Preparation and Application of Water Dispersible Graphene as Antistatic Agent for SMS Nonwovens

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Journal of Donghua University(English Edition) 2014年第5期31卷 635-639页

作者： tan Mei-ying College of Textiles Donghua University Shanghai 201620 China Key Laboratory of Textile Science and Technology Ministry of Education Donghua University Shanghai 201620 China

In this paper, glucose was used as a green reducing agent and a capping reagent in the synthesis of water dispersible graphene, while using exfoliated graphite oxide （GO） as the precursor with the modified Hummers method. Characterizations of the graphene were conducted by UV-visihle absorption spectroscopy and X-ray diffraction （XRD）. Then the spunlaid-melthlowing-spuulaid （SMS） nonwovens were treated with the graphene solution via pad-dry-cure process. The surface and the antistatic property of the obtained nonwovens were tested. The results showed that O. 1 mg/mL graphene solution exhibited good stability in water. When treated with this solution, the graphene could be evenly dispersed on SMS nonwovens and the nonwovens had an excellent antistatic performance and a high relatively antistatic durability.

关键词： graphene glucose spunlaid-meltblowing-spunlaid ( SMS)nonwovens antistatic treatment

Chondroitinase ABC combined with Schwann cell transplantation enhances restoration of neural connection and functional recovery following acute and chronic spinal cord injury

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Neural Regeneration Research 2025年第5期20卷 1467-1482页

作者： Wenrui Qu Xiangbing Wu Wei Wu ying Wang Yan Sun Lingxiao Deng Melissa Walker Chen Chen Heqiao Dai Qi Han ying Ding Yongzhi Xia George Smith Rui Li Nai-Kui Liu Xiao-Ming Xu Spinal Cord and Brain Injury Research Group Stark Neurosciences Research InstituteDepartment of Neurological SurgeryIndiana University School of MedicineIndianapolisINUSA Department of Hand Surgery the Second Hospital of Jilin UniversityChangchunJilin ProvinceChina Shriners Hospitals Pediatric Research Center Temple University School of MedicinePhiladelphiaPAUSA Department of Anatomy&Cell Biology Indiana University School of MedicineIndianapolisINUSA

Schwann cell transplantation is considered one of the most promising cell-based therapy to repair injured spinal cord due to its unique growth-promoting and myelin-forming properties.A the Food and Drug Administration-approved Phase I clinical trial has been conducted to evaluate the safety of transplanted human autologous Schwann cells to treat patients with spinal cord injury.A major challenge for Schwann cell transplantation is that grafted Schwann cells are confined within the lesion cavity,and they do not migrate into the host environment due to the inhibitory barrier formed by injury-induced glial scar,thus limiting axonal reentry into the host spinal *** we introduce a combinatorial strategy by suppressing the inhibitory extracellular environment with injection of lentivirus-mediated transfection of chondroitinase ABC gene at the rostral and caudal borders of the lesion site and simultaneously leveraging the repair capacity of transplanted Schwann cells in adult rats following a mid-thoracic contusive spinal cord *** report that when the glial scar was degraded by chondroitinase ABC at the rostral and caudal lesion borders,Schwann cells migrated for considerable distances in both rostral and caudal *** Schwann cell migration led to enhanced axonal regrowth,including the serotonergic and dopaminergic axons originating from supraspinal regions,and promoted recovery of locomotor and urinary bladder ***,the Schwann cell survival and axonal regrowth persisted up to 6 months after the injury,even when treatment was delayed for 3 months to mimic chronic spinal cord *** findings collectively show promising evidence for a combinatorial strategy with chondroitinase ABC and Schwann cells in promoting remodeling and recovery of function following spinal cord injury.

关键词： axonal regrowth bladder function chondroitinase ABC functional recovery glial scar lentivirus migration Schwann cell spinal cord injury transplantation

Further analysis of scintillation index for a laser beam propagating through moderate-to-strong non-Kolmogorov turbulence based on generalized effective atmospheric spectral model

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Chinese Physics B 2018年第3期27卷 244-252页

作者： Jing Ma yu-Long Fu Si-yuan yu Xiao-Long Xie Li-ying tan National Key Laboratory of Tunable Laser Technology Harbin Institute of Technology Harbin 150001 China

A new expression of the scintillation index （SI） for a Gaussian-beam wave propagating through moderate-to-strong non-Kolmogorov turbulence is derived, using a generalized effective atmospheric spectrum and the extended Rytov approx- imation theory. Finite inner and outer scale parameters and high wave number ＂bump＂ are considered in the spectrum with a generalized spectral power law in the range of 3-4, instead of the fixed classical Kolmogorov power law of 11/3. The obtained SI expression is then used to analyze the effects of the spectral power law and the inner scale and outer scale on SI under various non-Kolmogorov fluctuation conditions. These results will be useful in future investigations of optical wave propagation through atmospheric turbulence.

关键词： atmospheric optics non-Kolmogorov turbulence scintillation index Gaussian-beam wave

High resolution full-spectrum water Raman lidar

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Science China(Technological Sciences) 2012年第5期55卷 1224-1229页

作者： LIU FuChao YI Fan JIA Jingyu ZHANG yunPeng ZHANG ShaoDong yu ChangMing tan ying School of Electronic Information Wuhan UniversityWuhan 430079China Key Laboratory of Geospace Environment and Geodesy Ministry of EducationWuhan 430079China State Observatory for Atmospheric Remote Sensing Wuhan 430079China

Knowledge of the temporal-spatial distribution of water content in atmosphere and water phase change in cloud is important for atmospheric study. For this purpose, we have developed a high resolution full-spectrum water Raman lidar that can collect Raman signals from ice, water droplets and water vapor simultaneously. A double-grating polychromator and a 32-channel photomultiplier-tube detector are used to obtain a spectral resolution of-0.19 nm in the full Raman spectrum range of water, Preliminary observations present the water Raman spectrum characteristics of both the mixed-phase cloud and humid air under cloudless condition.

关键词： cloud water phase high spectral resolution Raman lidar

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不同生态复氧方式对城市河流溶解氧影响研究

环境生态学 2019年第3期1卷 61-66页

作者：赵文博解永新于英潭王首鹏张朝星王俭本溪市城市新区开发建设管理办公室辽宁本溪117000 辽宁大学环境学院辽宁沈阳110036

由于工业废水和城市生活污水的大量排放,以及河道截弯取直破坏了河流原有的自然形态,导致部分城市河流污染严重、溶解氧含量偏低、自净能力减弱。而较高的溶解氧浓度对河流自净能力提升及水质改善具有十分重要的意义。有效利用河流原本... 详细信息

由于工业废水和城市生活污水的大量排放,以及河道截弯取直破坏了河流原有的自然形态,导致部分城市河流污染严重、溶解氧含量偏低、自净能力减弱。而较高的溶解氧浓度对河流自净能力提升及水质改善具有十分重要的意义。有效利用河流原本具有的能量,采用生态复氧的方式实现河流溶解氧含量提升、增强城市污染水体自净能力是既经济又切实可行的一种途径。为此开展了不同生态复氧方式对河流溶解氧影响的试验研究。结果表明:(1)在初始溶解氧浓度相同的情况下,不同方式的复氧效果排序为:潜坝>丁坝>跌水;(2)在初始溶解氧浓度不同的情况下,初始溶解氧浓度越低,水流经过不同复氧装置的溶解氧增量越大,增量大小排序为:潜坝>跌水>丁坝;(3)深潭-浅滩结构复氧效果明显优于单独的丁坝、潜坝,且多个深潭-浅滩结构间距为1倍河宽时,溶解氧的含量处于持续增加状态,且增量相对较大,复氧效果较好。

关键词：生态复氧溶解氧潜坝丁坝深潭-浅滩

Promoting Bone Mesenchymal Stem Cells and Inhibiting Bacterial Adhesion of Acid-Etched Nanostructured Titanium by Ultraviolet Functionalization

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Journal of Materials Science & Technology 2015年第2期31卷 182-190页

作者： Guobo Lan Mei Li ying tan Lihua Li Xiaoming Yang Limin Ma Qingshui Yin Hong Xia yu Zhang Guoxin tan Chengyun Ning Southern Medical University Hospital of Orthopedics General Hospital of Guangzhou Military Command Faculty of Light and Chemical Guangdong University of Technology College of Materials Science and Technology South China University of Technology

Titanium(Ti) and its alloys are used extensively in orthopedic implants because of their excellent biocompatibility,mechanical properties and corrosion resistance. However,titanium-based implant materials face many severe complications,such as implant loosening due to poor osseointegration and bacterial infections,which may lead to implant failure. Hence,preparing a biomaterial surface,which enhances the interactions with host cells and inhibits bacterial adhesion,may be an optimal strategy to reduce the incidence of implant failure. This study aims to improve osseointegration and confer antibacterial properties on Ti through a combination of two surface modifications including nanostructuring generated by acid etching and ultraviolet(UV) light *** results showed that without UV treatment,the acid etching treatment of Ti surface was effective at both improving the adhesion of bone mesenchymal stem cells(BMSCs) and increasing bacterial adhesion. A further UV treatment of the acid-etched surface however,not only significantly improved the cell adhesion but also inhibited bacterial adhesion. The acid-etched nanostructured titanium with UV treatment also showed a significant enhancement on cell proliferation,alkaline phosphatase(ALP) activity and mineralization. These results suggest that such nanostructured materials with UV treatment can be expected to have a good potential in orthopedic applications.

关键词： UV treatment Nanostructures Bone mesenchymal stem