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Rapid and scalable preparation of highly quaternized polymer networks to achieve efficient simultaneous adsorption of iodide and pertechnetate

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Science China Chemistry 2025年第01期 337-349页

作者： Meiyun Xu Song Gu Fulong Chen Zhe zhao Peng Liu Daoben hua State Key Laboratory of Radiation Medicine and Protection School of Radiological and Interdisciplinary Sciences (RAD-X) Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions Soochow University

The efficient separation of fission products,such as TcO4-and I-,holds strategic significance for the management of radioactive wastes and environmental *** this study,we propose an ultrafast strategy for scalable preparation of a highly quaternized organic network to facilitate efficient and synchronous separation of iodide and *** network can be prepared within a few minutes at room temperature,using polyethylenimine and 1,2,4,5-tetrakis（bromomethyl）benzene as building *** chlorine replacement,the network,abundantly decorated with quaternary ammonium groups （Cl@QPN）,exhibits an ultrahigh positive charge density of 7.6 mmol/*** enables the rapid and efficient enrichment of target anions through strong electrostatic Coulomb *** a result,Cl@QPN exhibits significantly higher adsorption rate constants of 0.830 g/（mg min） for ReO4-（a nonradioactive surrogate of TcO4-） and 0.677 g/（mg min） for I-compared to other ***,it possesses high adsorption capacities,reaching 1,681 mg/g for ReO4-and 917.4 mg/g for I-.Cl@QPN also demonstrates good selectivity towards target ions and shows efficient adsorption for99TcO4-.Additionally,Cl@QPN exhibits high dynamic processing capacities,handling up to 3,100 and 7,400 kg of simulated streams per kilogram of material for I-and ReO4-,respectively.

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Recent Advances in Artificial Sensory Neurons: Biological Fundamentals, Devices, Applications, and Challenges

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NANO-MICRO LETTERS 2025年第1期17卷 1-49页

作者： zhong, Shuai Su, Lirou Xu, Mingkun Loke, Desmond Yu, Bin Zhang, Yishu zhao, Rong Guangdong Inst Intelligence Sci & Technol Zhuhai 519031 Hengqin Peoples R China Zhejiang Univ Coll Integrated Circuits Hangzhou 3112000 Peoples R China ZJU Hangzhou Global Sci & Technol Innovat Ctr Hangzhou 310027 Peoples R China Singapore Univ Technol & Design Dept Sci Math & Technol Singapore 487372 Singapore Tsinghua Univ Dept Precis Instruments Beijing 100084 Peoples R China Tsinghua Univ Ctr Brain Inspired Comp Res Beijing 100084 Peoples R China Tsinghua Univ IDG McGovern Inst Brain Res Beijing 100084 Peoples R China

Biological fundamentals and recent progress of artificial sensory neurons are systematically *** device, performance metrics, and potential applications of artificial sensory neurons are *** for the future development of artificial sensory neurons are discussed. Spike-based neural networks, which use spikes or action potentials to represent information, have gained a lot of attention because of their high energy efficiency and low power consumption. To fully leverage its advantages, converting the external analog signals to spikes is an essential prerequisite. Conventional approaches including analog-to-digital converters or ring oscillators, and sensors suffer from high power and area costs. Recent efforts are devoted to constructing artificial sensory neurons based on emerging devices inspired by the biological sensory system. They can simultaneously perform sensing and spike conversion, overcoming the deficiencies of traditional sensory systems. This review summarizes and benchmarks the recent progress of artificial sensory neurons. It starts with the presentation of various mechanisms of biological signal transduction, followed by the systematic introduction of the emerging devices employed for artificial sensory neurons. Furthermore, the implementations with different perceptual capabilities are briefly outlined and the key metrics and potential applications are also provided. Finally, we highlight the challenges and perspectives for the future development of artificial sensory neurons.

关键词： Artificial intelligence Emerging devices Artificial sensory neurons Spiking neural networks Neuromorphic sensing

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某半合成青霉素制药废水的水质指纹特性

光谱学与光谱分析 2016年第11期36卷 3602-3607页

作者：汤久凯吴静程澄李中华赵宇菲王士峰王勇军清华大学环境学院环境模拟与污染控制国家重点联合实验室北京100084 河北华药环境保护研究所有限公司河北石家庄050015

近年来,地表水中时有抗生素检出,且浓度较高,因此加强抗生素废水的监管势在必行。三维荧光技术快速、简便且灵敏度高,可以反映有机物组成,其光谱被称为水质指纹。选取某典型半合成青霉素制药废水进行水质指纹特性研究。该废水共有4个主... 详细信息

近年来,地表水中时有抗生素检出,且浓度较高,因此加强抗生素废水的监管势在必行。三维荧光技术快速、简便且灵敏度高,可以反映有机物组成,其光谱被称为水质指纹。选取某典型半合成青霉素制药废水进行水质指纹特性研究。该废水共有4个主要水纹峰,分别位于激发波长/发射波长为360/445,255/445,275/305和230/300nm附近。在一定浓度范围内,各峰强度与污染物浓度呈现良好的线性关系。该废水的两个峰275/305和230/300nm可能源于产品中间体左旋对羟基苯甘氨酸邓钾盐、产品阿莫西林和水解产物左旋对羟基苯甘氨酸等。pH对水质指纹有明显影响,这显示出某些荧光污染物可能具有酸碱基团。水质指纹能够用于该种抗生素制药废水的监测。

关键词：半合成青霉素制药废水荧光水质指纹 pH

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综采液压支架故障的研究、分析及处理

山东煤炭科技 2015年第4期33卷 103-104页

作者：宋东华钟兆华山西保利裕丰煤业有限公司山西临汾041000

通过总结液压支架使用过程中出现的故障,介绍了综采工作面液压支架常见问题的故障分类和处理措施。

关键词：液压支架故障结构件液压系统原因分析处理措施

Dual-Donor-Induced Crystallinity Modulation Enables 19.23% Efficiency Organic Solar Cells

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NANO-MICRO LETTERS 2025年第1期17卷 1-13页

作者： Liang, Anhai Sun, Yuqing Chung, Sein Shin, Jiyeong Sun, Kangbo Zhu, Chaofeng zhao, Jingjing zhao, Zhenmin zhong, Yufei Zhang, Guangye Cho, Kilwon Kan, Zhipeng Guangxi Univ Inst Sci & Technol Carbon Peak & Neutral Ctr Nanoenergy Res Sch Phys Sci & Technol Nanning 530004 Peoples R China Pohang Univ Sci & Technol Dept Chem Engn Pohang 37673 South Korea Shenzhen Technol Univ Coll New Mat & New Energies Shenzhen 518118 Peoples R China NingboTech Univ Zhejiang Engn Res Ctr Fabricat & Applicat Adv Phot Sch Mat Sci & Engn Ningbo 315100 Peoples R China State Key Lab Featured Met Mat & Life Cycle Safety Nanning 530004 Peoples R China

By modulating the crystalline properties of the active layer with dual donors, the efficiency of organic solar cells reaches 19.23%.The introduction of PTzBI-dF suppresses the accumulation of traps and charge recombination, allowing ternary devices to maintain 82% of their initial power conversion efficiency (PCE) after illumination for 800 *** dual-donor strategy for modulating the crystallinity of the active layer is applicable to a variety of Y6 derivatives, and the increase in PCE exceeds 1%. Trap-assisted charge recombination is one of the primary limitations of restricting the performance of organic solar cells. However, effectively reducing the presence of traps in the photoactive layer remains challenging. Herein, wide bandgap polymer donor PTzBI-dF is demonstrated as an effective modulator for enhancing the crystallinity of the bulk heterojunction active layers composed of D18 derivatives blended with Y6, leading to dense and ordered molecular packings, and thus, improves photoluminescence quenching properties. As a result, the photovoltaic devices exhibit reduced trap-assisted charge recombination losses, achieving an optimized power conversion efficiency of over 19%. Besides the efficiency enhancement, the devices comprised of PTzBI-dF as a third component simultaneously attain decreased current leakage, improved charge carrier mobilities, and suppressed bimolecular charge recombination, leading to reduced energy losses. The advanced crystalline structures induced by PTzBI-dF and its characteristics, such as well-aligned energy level, and complementary absorption spectra, are ascribed to the promising performance improvements. Our findings suggest that donor phase engineering is a feasible approach to tuning the molecular packings in the active layer, providing guidelines for designing effective morphology modulators for high-performance organic solar cells.

关键词： Trap-assisted charge recombination Photoluminescence Miscibility Current leakage Power conversion efficiency

MiR-490对B组3型柯萨奇病毒复制的抑制作用

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病毒学报 2014年第6期30卷 619-623页

作者：王琳琳钟照华王蔷鲁平李梅徐海燕哈尔滨医科大学附属第一医院实验诊断教研室哈尔滨市150001 哈尔滨医科大学微生物教研室哈尔滨市150081

为了研究miR-490对柯萨奇病毒B组3型（Coxsackievirus B type 3,CVB3）的作用,本文采用体外实验将miR-490转染入HeLa细胞,用带有海肾荧光素酶（Renilla luciferase,RLuc）基因的CVB3重组体（RLuc-CVB3）感染HeLa细胞,感染后0~40h,每隔8h收获一次细胞,测定荧光素酶活性,观察miR-490对RLuc-CVB3复制的作用。同时在另一实验组我们用带有绿色荧光（Enhanced green fluorescence protein,EGFP）表达的CVB3重组体（EGFP-CVB3）攻击表达miR-490的HeLa细胞和用反义miR-490（AMO-miR-490）沉默miR-490表达的HeLa细胞,观察miR-490对EGFP-CVB3复制和表达的影响。结果我们发现miR-490抑制RLuc-CVB3复制,miR-490在RLuc-CVB3感染后32h抑制效果最显著（P〈0.05）。同时发现在感染EGFP-CVB3后32h,miR-490对EGFPCVB3的复制和表达也有显著的抑制作用,但抑制作用可以被反义miR-490完全抵消。因此我们得出结论,miR-490能够显著抑制CVB3的复制和表达。

关键词：柯萨奇病毒 miR-490 抑制病毒复制

Pharmacodynamic study on Mongolian medicine Alatanwuwei Pilule on mice model with gastric ulcer

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Pharmacodynamic study on Mongolian medicine Alatanwuwei Pilu...

第十五届国际药理学大会

作者： Gui - lan BAO zhong - hua zhao Yu - ying WANG Ming - jie LIU Li -jun YU Hong BAO (Department of pharmacology College of Clinical Medicine Inner Monglia University For Nationalities TongLiao 028041)

＜正＞ To investigate and verify the preventive and therapeutic effect of Alatanwuwei Pilule （ ALT） treating experimental gastric ulcer by administration by gavage and supply theoretical bases for its clinical application. Methods Designing different animal models with gastric ulcer to find out pharmacological effect of ALT by administration by gavage. Results ALT by high dose（ 600mg · kg-1） and moderate dose( 300mg · kg-1 can significantly protect stomach from the damage of gastric ulcer induced by cold- water stress, glacial acetic acid ignition, alcohol and pyloric ligation. and can neutralize gastric acid, lower the activity of pepsin, inhibit intestinal propellant speed and alleviate the pain induced by acetic acid in mice, conclusion ALT shows a marked preventive and therapeutic effect on gastric ulcer by strengthening the defense function of gastric mucosa.

关键词： Alatanwuwei Pilule ( ALT) gastric ulcer gastric acid pepsin

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多约束的多角色访问控制中间件的设计与实现

机械设计与制造工程 2009年第3期35卷 11-14,18页

作者：仲照华陶华高晓兵西北工业大学中法虚拟设计与制造技术联合研究室现代设计与集成设计技术教育部重点实验室陕西西安710072

以基于角色的访问控制(RBAC)模型为基础,建立了一种适用于多条件约束的多角色访问控制中间件的访问控制模型,在该模型中提出角色系统状态和角色用户状态等角色状态,使其作为用户多角色使用和权限分配的约束条件。最后对中间件的实现方... 详细信息

以基于角色的访问控制(RBAC)模型为基础,建立了一种适用于多条件约束的多角色访问控制中间件的访问控制模型,在该模型中提出角色系统状态和角色用户状态等角色状态,使其作为用户多角色使用和权限分配的约束条件。最后对中间件的实现方法进行了阐述。

关键词：多角色多约束访问控制

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低硒小鼠模型的建立及低硒对心肌的影响

中国比较医学杂志 2010年第3期20卷 43-46,86页

作者：张琦张中海钟照华朱孝荣徐州医学院徐州221004 哈尔滨医科大学哈尔滨150081

目的建立低硒实验动物模型,观察低硒对心肌的影响。方法利用黑龙江地产酵母配制低硒小鼠饲料,使用配制的小鼠饲料喂养BALB/c幼鼠,经过4个月的喂养,测定血清、肝脏、心肌细胞的硒含量,观察心肌超微结构的变化,测定血清心肌酶的变化。结... 详细信息

目的建立低硒实验动物模型,观察低硒对心肌的影响。方法利用黑龙江地产酵母配制低硒小鼠饲料,使用配制的小鼠饲料喂养BALB/c幼鼠,经过4个月的喂养,测定血清、肝脏、心肌细胞的硒含量,观察心肌超微结构的变化,测定血清心肌酶的变化。结果利用黑龙江地产酵母配制的低硒饲料,硒含量为0.016 mg/kg,符合低硒标准。BALB/c鼠用该饲料喂养4个月,心肌、肝脏、血清硒含量分别为0.187 mg/kg、0.219 mg/kg、0.241mg/kg,符合低硒诊断标准。观察低硒鼠心肌超微结构,可见心肌细胞线粒体肿胀,细胞核出现了异型性,血清心肌酶较常硒鼠升高。结论利用黑龙江地产酵母成功配制了低硒饲料。经过低硒饲料饲养可建立低硒鼠模型。低硒可以引起BALB/c鼠心肌细胞损伤。

关键词：硒缺乏 BALB/c鼠心肌细胞