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Small-scale waste incinerators in rural China:Potential risks of dioxin and polychlorinated naphthalene emissions

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Emerging Contaminants 2019年第1期5卷 31-34页

作者： Lili Yang Guorui Liu qingqing zhu Minghui Zheng State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesP.O.Box 2871Beijing100085China University of Chinese Academy of Sciences Beijing100049China

Rapid development has led to a tremendous increase in the volume of solid waste produced in rural *** annual amount of solid waste produced from Chinese rural areas is approximately 110 million *** small-scale solid waste incinerators have been built in Chinese rural *** was speculated that the emissions and potential risks of polychlorinated dibenzo-p-dioxins and dibenzofurans(PCDD/Fs,commonly known as dioxins)and polychlorinated naphthalenes(PCNs)from these incinerators could be serious.A preliminary case investigation on PCDD/F and PCN emissions from a small-scale waste incinerator was *** stack gas samples were collected using auto isokinetic sampling techniques and PCDD/F and PCN congeners were identified and quantified by high resolution gas chromatography combined with high resolution mass *** and toxic equivalents of PCDD/Fs emitted from the small-scale waste incinerator were 153 ngm^-3 and 5.6 ng TEQ m^-3,respectively,which was much higher than the regulatory level for municipal solid waste incinerators permitted in China and the European Union *** have similar toxicological effects with PCDD/Fs,and the relative potency factors(RPFs)of some PCN congeners(dioxin-like PCNs)to 2,3,7,8-tetrachlorinated dibenzo-p-dioxin(TCDD)were previously proposed to evaluate the dioxin-like toxicity of *** mass concentrations of PCNs and dioxin-like PCNs from the small-scale solid incinerator were 2927 ngm^-3 and 1137 ngm^-3,much higher than that of ***,much less attention has been paid to the small-scale incinerators compared with municipal solid waste ***,we proposed that there should be a growing need to focus on the emissions and potential risks of dioxins and dioxin-like pollutants from these small-scale waste incinerators in rural China.

关键词： Small-scale waste incinerator Solid waste Rural area Dioxins Emission

沃里克爱丁堡积极心理健康量表在癌症病人心理健康评价中的适用性研究

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蚌埠医学院学报 2024年第8期49卷 1067-1070,1075页

作者：朱蕊张艳芳陈姿伊丁京朱庆庆于园园蚌埠医科大学护理学院安徽蚌埠233030

目的:检验中文版沃里克-爱丁堡积极心理健康量表在癌症病人群体中的信效度。方法:选取1105例癌症病人为研究对象,采用沃里克-爱丁堡积极心理健康量表、中文版疲劳量表和幸福感指数量表进行问卷调查。结果:WEMWBS-14和WEMWBS-7为单维度量... 详细信息

目的:检验中文版沃里克-爱丁堡积极心理健康量表在癌症病人群体中的信效度。方法:选取1105例癌症病人为研究对象,采用沃里克-爱丁堡积极心理健康量表、中文版疲劳量表和幸福感指数量表进行问卷调查。结果:WEMWBS-14和WEMWBS-7为单维度量表,分别有14和7个条目,临界比值分别介于20.813~29.173和21.278~30.338,各条目得分与量表总分的相关系数分别介于0.756~0.829和0.790~0.829,各条目共同性得分分别介于0.565~0.687和0.616~0.700;探索性因素分析提取出1个公因子,总解释率分别为62.155%和65.496%;验证性因素分析显示模型基本适配;内部一致性系数分别为0.953和0.911,两周后重测信度分别为0.733和0.710,折半信度系数为0.806和0.712。结论:中文版WEMWBS-14和WEMWBS-7在癌症病人群体中均有良好的信效度,WEMWBS-7可以作为癌症病人可行性高、耗时少、效率高的积极心理健康评估工具。

关键词：心理健康癌症沃里克-爱丁堡积极心理健康量表

Red blood cell membrane-camouflaged nanoparticles loaded with AIEgen and Poly(I: C) for enhanced tumoral photodynamic-immunotherapy

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National Science Review 2021年第6期8卷 46-59页

作者： Jun Dai Meng Wu Quan Wang Siyang Ding Xiaoqi Dong Liru Xue qingqing zhu Jian Zhou Fan Xia Shixuan Wang Yuning Hong Department of Obstetrics and Gynecology Tongji HospitalTongji Medical CollegeHuazhong University of Science and Technology Engineering Research Center of Nano-Geomaterials of Ministry of Education Faculty of Materials Science and ChemistryChina University of Geosciences Department of Chemistry and Physics La Trobe Institute for Molecular ScienceLa Trobe University College of Material Chemistry and Chemical EngineeringHangzhou Normal University

Red blood cell(RBC)-mimicking nanoparticles(NPs) offer a promising platform for drug delivery because of their prolonged circulation time, reduced immunogenicity and specific targeting ability. Herein, we report the design and preparation of RBC membrane-bound NPs(M@AP), for tumoral photodynamic-immunotherapy. The M@AP is formed by self-assembly of the positively charged aggregation-induced emission luminogen(AIEgen)(named P2-PPh3) and the negatively charged polyinosinic : polycytidylic acid(Poly(I : C)), followed by RBC membrane encapsulation. P2-PPh3 is an AIE-active conjugated polyelectrolyte with additional photosensitizing ability for photodynamic therapy(PDT), while Poly(I : C) serves as an immune-stimulant to stimulate both tumor and immune cells to activate immunity, and thus reduces tumor cell viability. When applied in tumor-bearing mice, the M@AP NPs are enriched in both the tumor region as a result of an enhanced permeability and retention(EPR)effect, and the spleen because of the homing effect of the RBC-mimicking shell. Upon light irradiation,P2-PPh3 promotes strong ROS generation in tumor cells, inducing the release of tumor antigens(TA). The anti-tumor immunity is further enhanced by the presence of Poly(I : C) in M@AP. Thus, this strategy combines the PDT properties of the AIE-active polyelectrolyte and immunotherapy properties of Poly(I : C) to achieve synergistic activation of the immune system for anti-tumor activity, providing a novel strategy for tumor treatment.

关键词： biomimetic drug delivery system aggregation-induced emission Poly(I : C) immunotherapy photodynamic therapy

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IGBT用双组分加成型有机硅凝胶的研制

有机硅材料 2024年第3期38卷 16-21页

作者：钱帆曾幸荣张文彬朱青青林子睿雷海明华南理工大学材料科学与工程学院广州510000 广东万木新材料科技有限公司广东江门529000

以端乙烯基甲基硅油为基础聚合物,添加含氢硅油、铂催化剂、抑制剂等制得双组分加成型有机硅凝胶。考察了端侧乙烯基甲基硅油、端侧氢基硅油、单乙烯基封端甲基硅油、活性氢与乙烯基物质的量之比对有机硅凝胶固化的影响,并与市售进口产... 详细信息

以端乙烯基甲基硅油为基础聚合物,添加含氢硅油、铂催化剂、抑制剂等制得双组分加成型有机硅凝胶。考察了端侧乙烯基甲基硅油、端侧氢基硅油、单乙烯基封端甲基硅油、活性氢与乙烯基物质的量之比对有机硅凝胶固化的影响,并与市售进口产品进行了性能对比。结果表明,制备绝缘栅双极晶体管(IGBT)封装用有机硅凝胶的较佳条件为:不添加端侧乙烯基甲基硅油,端侧氢基硅油用量为端氢基硅油的15%,体系中添加9.47%的单乙烯基封端甲基硅油,活性氢与乙烯基物质的量之比0.95。此时制得的有机硅凝胶与市售进口产品性能相当,耐高低温老化性能、双85老化性能、修复性、电气性能良好,渗油性符合IGBT封装用有机硅凝胶的要求。

关键词：硅凝胶双组分加成型封装材料

Low-temperature graphitization of lignin via Co-assisted electrolysis in molten salt

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Green Energy & Environment 2024年第9期9卷 1449-1458页

作者： Shijie Li Wei-Li Song Xue Han qingqing Cui Yan-li zhu Shuqiang Jiao Institute of Advanced Structure Technology Beijing Institute of Technology State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing State Key Laboratory of Explosion Science and Technology Beijing Institute of Technology

The ever-growing energy demand and environmental issues have stimulated the development of sustainable energy ***,an efficient and environmentally friendly electrochemical transformation technology was proposed to prepare highly graphitized carbon materials from an abundant natural resource-lignin （LG）.The preparation process mainly includes pyrolytic carbonization of raw LG material and electrochemical conversion of amorphous carbon ***,with the assistance of Co catalyst,the graphitization degree of the products was significantly improved,in which the mechanism was the removal of heteroatoms in LG and the rearrangement of carbon atoms into graphite ***,tunable microstructures （nanoflakes） under catalytic effects could also be observed by controlling the electrolytic *** with the products CN1 （without catalyst） and CN5 （with 10%catalyst）,the specific surface area are 158.957 and202.246 m2g-1,*** used as the electrode material for lithium-ion batteries,CN5 delivered a competitive specific capacity of～350 m Ah g-1（0.5 C） compared with commercial *** strategy proposed in this work provides an effective way to extract value-added graphite materials from lignin and can be extended to the graphitization conversion of any other amorphous carbon precursor materials.

关键词： Lignin Graphitic carbon Electrochemical conversion Lithium-ion batteries

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腰椎间盘突出症患者疼痛灾难化影响因素研究

护理管理杂志 2024年第8期24卷 688-692页

作者：李敏叶云芳朱晴晴周雨桐张晓雪童永晨安徽中医药大学附属太和中医院针灸科阜阳市236600

目的调查腰椎间盘突出症患者疼痛灾难化水平及影响因素,为制订护理策略提供参考。方法采用横断面调查,便利选取2022年1月至2023年5月安徽省某中医院针灸科收治的腰椎间盘突出症患者101例为调查对象。采用一般资料调查表、疼痛灾难化... 详细信息

目的调查腰椎间盘突出症患者疼痛灾难化水平及影响因素,为制订护理策略提供参考。方法采用横断面调查,便利选取2022年1月至2023年5月安徽省某中医院针灸科收治的腰椎间盘突出症患者101例为调查对象。采用一般资料调查表、疼痛灾难化量表、疼痛应对策略问卷、正负情绪量表进行调查。结果疼痛灾难化量表得分为(30.95±6.59)分,疼痛应对策略问卷得分为(61.11±12.74)分,正性情绪量表得分为(23.68±5.25)分,负性情绪量表得分为(31.19±6.49)分。多元逐步回归分析显示,病程、疼痛应对策略、正性情绪、负性情绪可影响腰椎间盘突出症患者疼痛灾难化水平(P<0.05)。结论腰椎间盘突出症患者疼痛灾难化处于中等偏上水平,临床护理工作者应根据患者不同疾病病程、疼痛应对策略、情绪状态及时对腰椎间盘突出症患者疼痛灾难化进行评估,强化个体化疼痛干预与管理。

关键词：腰椎间盘突出症疼痛灾难化疼痛应对正负情绪

Organic heterojunction synaptic device with ultra high recognition rate for neuromorphic computing

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Nano Research 2024年第6期17卷 5614-5620页

作者： Xuemeng Hu Jialin Meng Tianyang Feng Tianyu Wang Hao zhu qingqing Sun David Wei Zhang Lin Chen School of Microelectronics State Key Laboratory of Integrated Chips and SystemsFudan UniversityShanghai 200433China National Integrated Circuit Innovation Center Shanghai 201203China

Traditional computing structures are blocked by the von Neumann bottleneck,and neuromorphic computing devices inspired by the human brain which integrate storage and computation have received more and more ***,a flexible organic device with 2,7-dioctyl[1]benzothieno[3,2-b][1]benzothiophene(C8-BTBT)and 2,9-didecyldinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophene(C10-DNTT)heterostructural channel having excellent synaptic behaviors was fabricated on muscovite(MICA)substrate,which has a memory window greater than 20 *** device shows better electrical characteristics than organic field effect transistors with single organic semiconductor ***,the device simulates organism synaptic behaviors successfully,such as paired-pulse facilitation(PPF),long-term potentiation/depression(LTP/LTD)process,and transition from short-term memory(STM)to long-term memory(LTM)by optical and electrical ***,the neuromorphic computing function was verified using the Modified National Institute of Standards and Technology(MNIST)pattern recognition,with a recognition rate nearly 100%without *** research proposes a flexible organic heterojunction with the ultra-high recognition rate in MNIST pattern recognition and provides the possibility for future flexible wearable neuromorphic computing devices.

关键词： organic heterojunction neuromorphic computing synapse behaviors optical modulation Modified National Institute of Standards and Technology(MNIST)pattern recognition

InGaZnO-based photoelectric synaptic devices for neuromorphic computing

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Journal of Semiconductors 2024年第9期45卷 42-47页

作者： Jieru Song Jialin Meng Tianyu Wang Changjin Wan Hao zhu qingqing Sun David Wei Zhang Lin Chen School of Microelectronics State Key Laboratory of Integrated Chips and SystemsFudan UniversityShanghai 200433China School of Integrated Circuits Shandong UniversityJinan 250100China National Integrated Circuit Innovation Center Shanghai 201203China School of Electronic Science and Engineering Nanjing UniversityNanjing 210023China Jiashan Fudan Institute Jiashan 314102China

Photoelectric synaptic devices could emulate synaptic behaviors utilizing photoelectric effects and offer promising prospects with their high-speed operation and low crosstalk. In this study, we introduced a novel InGaZnO-based photoelectric memristor. Under both electrical and optical stimulation, the device successfully emulated synaptic characteristics including excitatory postsynaptic current (EPSC), paired-pulse facilitation (PPF), long-term potentiation (LTP), and long-term depression (LTD). Furthermore, we demonstrated the practical application of our synaptic devices through the recognition of handwritten digits. The devices have successfully shown their ability to modulate synaptic weights effectively through light pulse stimulation, resulting in a recognition accuracy of up to 93.4%. The results illustrated the potential of IGZO-based memristors in neuromorphic computing, particularly their ability to simulate synaptic functionalities and contribute to image recognition tasks.

关键词： InGaZnO artificial synapse neuromorphic computing photoelectric memristor

苏云金芽胞杆菌G033A对三种赤眼蜂寄生番茄潜叶蛾能力的影响

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