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关键词

二氧化碳 6

4D打印 4

微波辐射计 3

HY-2A卫星 2

二氧化碳捕集 2

优化设计 2

催化剂 2

光催化 2

微波遥感 2

最小二乘法 2

氧化铈 2

海洋二号 2

&alpha 1

1 1

185 nmUV 1

1860 MPa等级 1

2 1

2D增材制造 1

2R-1C模型;嵌入式系统;参数估计;非迭代方法;二次型 1

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DNAN的高级氧化过程研究 Article

苏海磊, Christos Christodoulatos, Benjamin Smolinski, Per Arienti, Greg O´Connor, 孟晓光

《工程(英文)》 2019年 第5卷 第5期   页码 849-854 doi: 10.1016/j.eng.2019.08.003

摘要:

2,4-硝基茴香(DNAN)是用于替代2,4,6-三硝基甲苯(TNT)的钝感炸药的一种重要成分。结果显示,初始pH为4~7且H2O2剂量为1500~4500 ppm,使用UV/ H2O2处理浓度为250 ppm

关键词: 2     4-硝基茴香     高级氧化技术     废水处理     光催化    

Synthesis, molecular docking and antibacterial evaluation of 2-(4-(4-aminophenylsulfonyl)phenylamino)

Palanisamy RAVICHANDIRAN, Dhanaraj PREMNATH, Samuel VASANTHKUMAR

《化学科学与工程前沿(英文)》 2015年 第9卷 第1期   页码 46-56 doi: 10.1007/s11705-015-1506-6

摘要: A new series of 2-(4-(4-aminophenylsulfonyl)phenylamino)-3-(thiophen-2-ylthio)naphthalene-1,4-dione derivatives ( 3a-3n) were synthesized and characterized by spectral techniques. To understand the interaction of binding sites with bacterial protein receptor, the docking study was performed by the GLIDE program and compound -(4-(4-(1,4-dioxo-3-(thiophen-2-ylthio)-1,4-dihydronaphthalen-2-ylamino)phenylsulfonyl)phenyl)-3-methylbenzamide ( 3b) exhibited good glide and E model scores of ?5.89 and ?94.90, respectively. Moreover among all the molecules studied including the standards used, namely Sparfloxacin (4.8 μg/mL) and Norfloxacin (no inhibition observed) for their antibacterial property, compound -(4-(4-(1,4-dioxo-3-(thiophen-2-ylthio)-1,4-dihydronaphthalen-2-ylamino)phenylsulfonyl)phenyl)-4-nitrobenzamide ( 3e) exhibited the lowest minimum inhibitory concentration (MIC) value of 1.3 μg/mL against .

关键词: MIC     2-thiophene thiol     water as solvent     acid chlorides     sulfone    

Fenton oxidation of 2,4- and 2,6-dinitrotoluene and acetone inhibition

HE Yiliang, ZHAO Bin, HUGHES Joseph B., HAN Sung Soo

《环境科学与工程前沿(英文)》 2008年 第2卷 第3期   页码 326-332 doi: 10.1007/s11783-008-0038-4

摘要: The performances and kinetic parameters of Fenton oxidation of 2,4- and 2,6-dinitrotoluene (DNT) in water-acetone mixtures and explosive contaminated soil washing-out solutions were investigated at a laboratory scale. The experimental results show that acetone can be a significant hydroxyl radical scavenger and result in serious inhibition of Fenton oxidation of 2,4- and 2,6-DNT. Although no serious inhibition was found in contaminated soil washing-out solutions, longer reaction time was needed to remove 2,4- and 2,6-DNT completely, mainly due to the competition of hydroxyl radicals. Fenton oxidation of 2,4- and 2,6-DNT fit well with the first-order kinetics and the presence of acetone also reduced DNT’s degradation kinetics. Based on the comparison and matching of retention time and ultraviolet (UV) spectra between high performance liquid chromatography (HPLC) and standards, the following reaction pathway for 2,4-DNT primary degradation was proposed: 2,4-DNT → 2,4-dinitro-benzaldehyde → 2,4-dinitrobenzoic acid → 1,3-dinitrobenzene → 3-nitrophenol.

关键词: presence     2     4-DNT     competition     laboratory     scavenger    

Synthesis and characterization of 2,5-bis[4-(2-arylvinyl)phenyl]-1,3,4-oxadiazoles with two-photon fluorescence

ZHU Xiaoqin, QIAN Ying, LU Zhifeng

《化学科学与工程前沿(英文)》 2007年 第1卷 第4期   页码 381-384 doi: 10.1007/s11705-007-0069-6

摘要: Four novel 2,5-bis[4-(2-arylvinyl)phenyl]-1,3,4-oxadiazoles that exhibit strong two-photon absorption and enhanced two-photon excited fluorescence were designed and synthesized based on push-core-pull-core-push molecules built from embedding electron-transporting 1,3,4-oxadiazole in aromatic conjugated system through Wittig-Horner reaction. Their chemical structures were determined to show trans-vinylene character according to infrared (IR) and H nuclear magnetic resonance (NMR) spectra. A very effective energy transfer from the excited units to the ?-conjugated bridging unit can enhance the two-photon absorption and two-photon fluorescence.

关键词: 2-arylvinyl     trans-vinylene character     effective     fluorescence     push-core-pull-core-push    

Enhancement of open circuit voltage in organic solar cells by doping a fluorescent red dye

Qing LI, Junsheng YU, Yue ZANG, Nana WANG, Yadong JIANG

《能源前沿(英文)》 2012年 第6卷 第2期   页码 179-183 doi: 10.1007/s11708-012-0177-y

摘要: The open circuit voltage ( ) of small-molecule organic solar cells (OSCs) could be improved by doping suitable fluorescent dyes into the donor layers. In this paper, 4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB) was used as a dopant, and the performance of the OSCs with different DCJTB concentration in copper phthalocyanine (CuPc) was studied. The results showed that the of the OSC with 50% of DCJTB in CuPc increased by 15%, compared with that of the standard CuPc/fullerene (C ) device. The enhancement of the was attributed to the lower highest occupied molecular orbital (HOMO) level in the DCJTB than that in the CuPc. Also, the light absorption intensity is enhanced between 400 and 550 nm, where CuPc and C have low absorbance, leading to a broad absorption spectrum.

关键词: organic solar cells (OSCs)     open circuit voltage     fluorescent dye doping     4-(dicyanomethylene)-2-t-butyl-6-(1     1     7     7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB)    

基于硫化钛可饱和吸收体的被动锁模掺铒光纤激光器 Research Articles

尚新新1,3,4,郭林广1,3,4,张华年2,李登旺1,3,4,岳庆炀1,3,4

《信息与电子工程前沿(英文)》 2021年 第22卷 第5期   页码 615-766 doi: 10.1631/FITEE.2000341

摘要: 本文采用液相剥离法和旋涂法合成调制深度为5.08%、饱和强度为10.62 MW/cm2的硫化钛聚乙烯醇薄膜型可饱和吸收体。由于硫化钛可饱和吸收体具有很强的非线性饱和吸收特性,在掺铒锁模光纤激光器中观测到两种类型的光孤子。实验证明层状维材料硫化钛具有优异的非线性饱和吸收特性,在超快光子学领域具有广阔应用前景。

关键词: 光纤激光器;被动锁模;可饱和吸收体;硫化钛    

A pulsed switching peroxi-coagulation process to control hydroxyl radical production and to enhance 2,4-Dichlorophenoxyacetic acid degradation

Yaobin Lu, Songli He, Dantong Wang, Siyuan Luo, Aiping Liu, Haiping Luo, Guangli Liu, Renduo Zhang

《环境科学与工程前沿(英文)》 2018年 第12卷 第5期 doi: 10.1007/s11783-018-1070-7

摘要:

• A new pulsed switching peroxi-coagulation (PSPC) system was developed.

• The ECT for 2,4-D removal in the PSPC was lower than that in the EF.

• The iron consumption for 2,4-D removal in the PSPC was lower than that in the PC.

关键词: Pulsed switching peroxi-coagulation system     Energy consumption     Hydroxyl radical production     2     4- Dichlorophenoxyacetic acid    

多智能体系统的分异步脉冲跟踪一致性 Research Article

张玲忠1,李媛媛2,楼俊钢3,卢剑权4

《信息与电子工程前沿(英文)》 2022年 第23卷 第10期   页码 1522-1532 doi: 10.1631/FITEE.2100122

摘要:

本文研究了多智能体系统如何通过实施异步脉冲控制输入实现分布式分领导跟随一致性。所提出的异步脉冲控制方法不要求所有多智能体的脉冲信号同时发生。在领导者控制输入非零的情况下,得到了在闭环多智能体系统中实现分异步脉冲跟踪一致性的充分条件。本文讨论了更广泛的异步脉冲效应范围。所设计的控制器反馈部分可有效对抗脉冲扰动。

关键词: 分追踪;多智能体系统;异步脉冲;一致性    

硫化铼超薄纳米片的制备及其在调Q掺铒光纤激光器中的应用 Research

何俊杉1,2,3,4,曾国华1,刘绍贤1,卢海明1,谢锐贤1,戚晶晶1, 陶丽丽1,周博2,3,4

《信息与电子工程前沿(英文)》 2021年 第22卷 第3期   页码 287-436 doi: 10.1631/FITEE.2000339

摘要: 本文通过液相剥离法从自制硫化铼粉末中制备硫化铼超薄纳米片,并将其应用在调Q掺铒光纤激光器中。XRD、Raman和XPS表征结果证明具有层状结构硫化铼的成功合成;通过SEM和AFM表征发现所制备的硫化铼纳米片横向尺寸低于200 nm,厚度小于5 nm。将硫化铼/PVA复合薄膜作为可饱和吸收体放入掺铒光纤激光器中可以获得调Q脉冲输出,脉冲宽度最窄为2.4 μs,输出功率为1.25 mW,揭示了硫化铼在Q调制方面的潜在应用价值。

关键词: 硫化铼;可饱和吸收体;维材料;调Q光纤激光器    

利用CES1和DPP-IV的组织残余活性准确评估和追踪特异性肝损伤过程 Article

潘秋莎, 宋培放, 倪振华, 钱星凯, 王安琪, 邹立伟, 刘勇, 王平, 张卫东, 马红, 杨凌

《工程(英文)》 2022年 第19卷 第12期   页码 153-165 doi: 10.1016/j.eng.2021.09.014

摘要: 研究发现羧酸酯酶1(CES1)作为肝内标志物和肽基肽酶4(DPP-IV)作为肝外标志物可反映肝脏损伤的不同病理生理状态。CES1 和DPP-IV 水平可甄别肝损伤本身和炎症损伤之间的差异。

关键词: 羧酸酯酶1     肽基肽酶4     特异性肝脏损伤     标志物来源追溯    

用于锂离子电池的富/酯/氟黏结剂配方 Article

Xianqing Zeng, Donglin Han, Zeheng Li, Hongxun Wang, Gu Wu, Yong Deng, Kai Liu, Li Xie, Chengdu Liang, Min Ling, Yuchuan Huang

《工程(英文)》 2022年 第19卷 第12期   页码 199-206 doi: 10.1016/j.eng.2022.05.020

摘要: 在这里,我们综合考虑了黏结剂的氢键、力学性能、稳定性以及与电解液的相容性,设计了一种富/酯/氟的复合聚合物P(TFEMA-co-IBVE)。

关键词: 硅阳极     乳液共聚合     氟原子            

多功能结构设计与原位制造 Article

张岩, 张广玉, 乔菁, 李隆球

《工程(英文)》 2023年 第28卷 第9期   页码 58-68 doi: 10.1016/j.eng.2022.11.009

摘要: ;的思想,我们利用基于分层调控原理的优化设计模型,设计出了同时包含机械承载、电气、导热和辐射屏蔽多种功能的典型结构;并且开发了一种高温原位增材制造(AM)技术,可打印各种金属丝和碳纤维增强的高熔点聚醚酮研究结果表明,所设计的多功能结构相比同尺寸聚醚酮树脂基板具有更低质量,而且刚度提升了21.5%;集成的电学器件在多功能结构超出弹性变形阶段后仍然正常工作;与聚醚酮基板相比,多功能结构中心热源区域下方的等效导热率提高了

关键词: 增材制造     多功能结构     优化设计     卫星     聚醚   

ZnFe2O4/BiVO4 Z-scheme heterojunction for efficient visible-light photocatalytic

《化学科学与工程前沿(英文)》 2023年 第17卷 第11期   页码 1728-1740 doi: 10.1007/s11705-023-2322-z

摘要: A novel Z-scheme ZnFe2O4/BiVO4 heterojunction photocatalyst was successfully synthesized using a convenient solvothermal method and applied in the visible light photocatalytic degradation of ciprofloxacin, which is a typical antibiotic contaminant in wastewater. The heterostructure of as-synthesized catalysts was confirmed using X-ray diffraction, scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy characterizations. Compared with the single-phase counterparts, ZnFe2O4/BiVO4 demonstrated considerably enhanced photogenerated charge separation efficiencies because of the Z-scheme transfer mechanism of electrons between the composite photocatalysts. Consequently, the 30% ZnFe2O4/BiVO4 catalyst afforded a degradation rate of up to 97% of 20 mg/L ciprofloxacin under 30 min of visible light irradiation with a total organic carbon removal rate of 50%, which is an excellent activity compared with ever reported BiVO4-based catalysts. In addition, the liquid chromatography-mass spectrometry and quantitative structure-activity relationships model analyses demonstrated that the toxicity of the intermediates was lower than that of the parent ciprofloxacin. Moreover, the as-synthesized ZnFe2O4/BiVO4 heterojunctions were quite stable and could be reused at least four times. This study thus provides a promising Z-scheme heterojunction photocatalyst for the efficient removal and detoxication of antibiotic pollutants from wastewater.

关键词: ZnFe2O4/BiVO4     Z-scheme heterojunction     photocatalytic degradation     ciprofloxacin    

Li4SiO4-coated LiNi0.5Mn1.5O4 as the high performance

Shifeng YANG, Wenfeng REN, Jian CHEN

《能源前沿(英文)》 2017年 第11卷 第3期   页码 374-382 doi: 10.1007/s11708-017-0494-2

摘要: The preparation of Li SiO -coated LiNi Mn O materials by sintering the SiO -coated nickel-manganese oxides with lithium salts using abundant and low-cost sodium silicate as the silicon source was reported. The samples were characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. It was found that a uniform and complete SiO coating layer could be obtained at a suitable pH value of 10, which transformed to a good Li SiO coating layer afterwards. When used as the cathode materials for lithium-ion batteries, the Li SiO -coated LiNi Mn O samples deliver a better electrochemical performance in terms of the discharge capacity, rate capability, and cycling stability than that of the pristine material. It can still deliver 111.1 mAh/g at 20 C after 300 cycles, with a retention ratio of 93.1% of the stable capacity, which is far beyond that of the pristine material (101.3 mAh/g, 85.6%).

关键词: lithium-ion batteries     cathode material     LiNi0.5Mn1.5O4     lithium-ion conductor     coating    

Enhanced debromination of 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47) by zero-valent zinc with ascorbic

Chaojin Jiang, Xiaoqian Jiang, Lixun Zhang, Yuntao Guan

《环境科学与工程前沿(英文)》 2020年 第14卷 第3期 doi: 10.1007/s11783-020-1224-2

摘要: Highly efficient debromination of BDE-47 was achieved in the ZVZ/AA system. BDE-47 debromination by the ZVZ/AA can be applied to a wide range of pH. AA inhibits the formation of (hydr)oxide and accelerates the corrosion of ZVZ. Reduction mechanism of BDE-47 debromination by the ZVZ/AA system was proposed. A new technique of zero-valent zinc coupled with ascorbic acid (ZVZ/AA) was developed and applied to debrominate the 2,2′,4,4′-Tetrabromodiphenyl ether (BDE-47), which achieved high conversion and rapid debromination of BDE-47 to less- or non-toxic forms. The reaction conditions were optimized by the addition of 100 mg/L ZVZ particles and 3 mmol/L AA at original solution pH= 4.00 using the solvent of methanol/H2O (v:v= 4:6), which could convert approximately 94% of 5 mg/L BDE-47 into lower-brominated diphenyl ethers within a 90 min at the ZVZ/AA system. The high debromination of BDE-47 was mainly attributed to the effect of AA that inhibits the formation of Zn(II)(hydr)oxide passivation layers and promotes the corrosion of ZVZ, which leads to increase the reactivity of ZVZ. Additionally, ion chromatography and gas chromatography mass spectrometry analyses revealed that bromine ion and lower-debromination diphenyl ethers formed during the reduction of BDE-47. Furthermore, based on the generation of the intermediates products, and its concentration changes over time, it was proposed that the dominant pathway for conversion of BDE-47 was sequential debromination and the final products were diphenyl ethers. These results suggested that the ZVZ/AA system has the potential for highly efficient debromination of BDE-47 from wastewater.

关键词: 2     2′     4     4′-tetrabromodiphenyl ether (BDE-47)     Ascorbic acid     Reductive debromination     Zero-valent zinc    

标题 作者 时间 类型 操作

DNAN的高级氧化过程研究

苏海磊, Christos Christodoulatos, Benjamin Smolinski, Per Arienti, Greg O´Connor, 孟晓光

期刊论文

Synthesis, molecular docking and antibacterial evaluation of 2-(4-(4-aminophenylsulfonyl)phenylamino)

Palanisamy RAVICHANDIRAN, Dhanaraj PREMNATH, Samuel VASANTHKUMAR

期刊论文

Fenton oxidation of 2,4- and 2,6-dinitrotoluene and acetone inhibition

HE Yiliang, ZHAO Bin, HUGHES Joseph B., HAN Sung Soo

期刊论文

Synthesis and characterization of 2,5-bis[4-(2-arylvinyl)phenyl]-1,3,4-oxadiazoles with two-photon fluorescence

ZHU Xiaoqin, QIAN Ying, LU Zhifeng

期刊论文

Enhancement of open circuit voltage in organic solar cells by doping a fluorescent red dye

Qing LI, Junsheng YU, Yue ZANG, Nana WANG, Yadong JIANG

期刊论文

基于硫化钛可饱和吸收体的被动锁模掺铒光纤激光器

尚新新1,3,4,郭林广1,3,4,张华年2,李登旺1,3,4,岳庆炀1,3,4

期刊论文

A pulsed switching peroxi-coagulation process to control hydroxyl radical production and to enhance 2,4-Dichlorophenoxyacetic acid degradation

Yaobin Lu, Songli He, Dantong Wang, Siyuan Luo, Aiping Liu, Haiping Luo, Guangli Liu, Renduo Zhang

期刊论文

多智能体系统的分异步脉冲跟踪一致性

张玲忠1,李媛媛2,楼俊钢3,卢剑权4

期刊论文

硫化铼超薄纳米片的制备及其在调Q掺铒光纤激光器中的应用

何俊杉1,2,3,4,曾国华1,刘绍贤1,卢海明1,谢锐贤1,戚晶晶1, 陶丽丽1,周博2,3,4

期刊论文

利用CES1和DPP-IV的组织残余活性准确评估和追踪特异性肝损伤过程

潘秋莎, 宋培放, 倪振华, 钱星凯, 王安琪, 邹立伟, 刘勇, 王平, 张卫东, 马红, 杨凌

期刊论文

用于锂离子电池的富/酯/氟黏结剂配方

Xianqing Zeng, Donglin Han, Zeheng Li, Hongxun Wang, Gu Wu, Yong Deng, Kai Liu, Li Xie, Chengdu Liang, Min Ling, Yuchuan Huang

期刊论文

多功能结构设计与原位制造

张岩, 张广玉, 乔菁, 李隆球

期刊论文

ZnFe2O4/BiVO4 Z-scheme heterojunction for efficient visible-light photocatalytic

期刊论文

Li4SiO4-coated LiNi0.5Mn1.5O4 as the high performance

Shifeng YANG, Wenfeng REN, Jian CHEN

期刊论文

Enhanced debromination of 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47) by zero-valent zinc with ascorbic

Chaojin Jiang, Xiaoqian Jiang, Lixun Zhang, Yuntao Guan

期刊论文