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Imidazolium-based ionic polymers for fast and efficient anion-exchange driven capture of Cr2O72-

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Science China Chemistry 2025年

作者： Yishou Wang Xiaonan Yuan Xingxing Gou Xiatian song Xiaogang Wang Ling Guo Yanfeng Liu Chengfang qiao Chunsheng Zhou Yingfeng Han Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources Shaanxi Engineering Research Center for Mineral Resources Clean & Efficient Conversion and New Materials College of Chemical Engineering and Modern Materials Shangluo University Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education Xi'an Key Laboratory of Functional Supramolecular Structure and Materials College of Chemistry and Materials Science Northwest University

The pervasive issue of chromium（VI） contamination,particularly in dichromate (Cr2O2-7),resulting from unchecked industrial growth and inadequate waste management,remains a pressing concern that demands immediate and dedicated ***,we present two novel imidazolium-based ionic polymers （ImIPs）.The ImIPs boast a highly cationic structure rich in bromide（Br-） ions and exhibit remarkable porosity,facilitating the easy exchange of these ions for chromate (Cr2O2-7) through anion *** unique combination leads to exceptional performance,including a high adsorption capacity （423 mg/g）,rapid adsorption rate (75 mg g-1min-1),and a broad operational pH range （2–12）.Moreover,our material demonstrates remarkable reusability,maintaining its efficacy even after 10 cycles without significant loss of *** mechanistic studies underscore the role of ion-exchange chemistry in effectively removing dichromate by the presented ImIPs,providing strong evidence for their suitability as a robust solution to address the ongoing challenges in water *** findings represent a crucial step in developing advanced materials for tackling chromium（VI） pollution.

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利用普通液晶显示屏显示光指针的一种方法

苏州大学学报（工科版） 2004年第6期24卷 34-37页

作者：柏松乔林枫陈庆官苏州大学材料工程学院江苏苏州215021

为了减少开发专用液晶显示屏这一环节,而利用PIC单片机来实现在普通的显示屏上同步显示光指针和数字量的一种方法。

关键词：模拟条 LCD面板光指针

Signal processing method of a novel polarized array radar seeker

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Journal of Systems Engineering and Electronics 2013年第5期24卷 772-779页

作者： Lizhong song Xiaolin qiao School of Information and Electrical Engineering Harbin Institute of Technology at Weihai

This paper proposes a novel polarized radar seeker based on the polarized antenna array. A fully polarized signal processing method for the proposed radar seeker is studied under the environments with electromagnetic interferences. A dual polarized antenna array is employed to transmit and receive the radar signals. The instantaneous polarization signal processing technique is used to detect and recognize the targets. The direction of arrival （DOA） of the target is measured through the spatial spectrum with high resolution for the polarized array radar seeker system. The fully polarized signal model of the polarized array radar seeker is formulated and a specific signal processing algorithm is expounded. The theoretical research and numerical simulation results demonstrate that the proposed radar seeker has good performances in target detection and electronic warfare. The research results can provide an effective technical approach to develop and research the new generation radar seeker.

关键词： antenna array polarized radar radar seeker direction of arrival (DOA) spatial spectrum.

Contributions of optimized tensor interactions on the binding energies of nuclei

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Nuclear Science and Techniques 2020年第2期31卷 11-19页

作者： Di Wu Chun-Lin bai H.Sagawa Zeng-Qiang song Huan-qiao Zhang College of Physics Sichuan UniversityChengdu 610065China RIKEN Nishina Center Wako 351-0198Japan Center for Mathematics and Physics University of AizuAizu-WakamatsuFukushima 965-8560Japan China Institute of Atomic Energy Beijing 102413China

The tensor parts of Skyrme interactions are constrained from the collective charge-exchange spin-dipole and Gamow-Teller excitation energies in 90Zr and 208Pb,together with the isotopic dependence of energy splitting between proton h11=2 and g7=2 single-particle orbits along the Z=50 *** the optimized tensor interactions,the binding energies of spherical or weakly deformed nuclei with A=54-228 are studied *** present results show that the global effect of tensor interaction is attractive and systematically increases the binding energies of all these nuclei and makes the nuclei more *** root mean squared deviation of the calculated binding energies from the experimental values is significantly improved by the optimized tensor interactions,and the contribution of the tensor interaction to the binding energy is estimated.

关键词： Tensor force Binding energy Gamow-Teller transition Spin-dipole transition Single-particle energy differences

Interspecific variation of thermoregulation between small migratory and resident passerines in Wenzhou

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Zoological Research 2016年第3期37卷 167-175页

作者： Qing-Gang qiao Hong-Ji LIANG Min-Lan bai Wei-Hong ZHENG Jin-song LIU School of Life and Environmental Sciences Wenzhou UniversityWenzhou 325035China Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection Wenzhou 325035China

Physiological adaptation arises from several fundamental sources of phenotypic variation. Most analyses of metabolic adaptation in birds have focused on the basal metabolic rate （BMR）, the lower limit of avian metabolic heat production. In this study, we investigated thermoregulation in three passerine species; the yellow-billed grosbeak Eophona migratoria, white-rumped munia Lonchura striata and black-throated bushtit Aegithalos concinnus, in Wenzhou, China. Metabolic rate was measured using the closed-circuit respirometer containing 3.5 L animal chambers. Body temperature （Tb） was measured during metabolic measurements using a lubricated thermocouple. The minimum thermal conductance of these species was calculated by measuring their Tb and metabolic rates. The yellow-billed grosbeak remained largely normothermic, and the white-rumped munia and black-throated bushtit exhibited variable Tb at ambient temperatures （Ta）. Mean metabolic rates within thermal neutral zone were 2.48±0.09 02 （mL）/g/h for yellow-billed grosbeaks, 3.44±0.16 02 （mL）/g/h for white-rumped munias, and 3.55±0.20 O2 （mL）/g/h for black-throated bushtits, respectively. Minimum thermal conductance of yellow-billed grosbeak, white-rumped munia and black-throated bushtit were 0.13±0.00, 0.36±0.01, and 0.37±0.01 02 （mL）/g/h/℃, respectively. The ecophysiological characteristics of these species were：（1） the yellowbilled grosbeak had relatively high Tb and BMR, a low lower critical temperature and thermal conductance, and a metabolic rate that was relatively insensitive to variation in Ta; all of which are typical of cold adapted species and explain its broader geographic distribution; （2） the white-rumped munia and black- throated bushtit had high thermal conductance, lower critical temperature, and relatively low BMR, all which are adapted to warm environments where there is little selection pressure for metabolic thermogenesis. Taken together, these data illustrate small migratory and resident passeri

关键词： Basal metabolic rate Body temperature Thermal conductance Eophona migratoria Lonchurastriata Aegithalos concinnus

Observation of atmospheric methane in the Arctic Ocean up to 87° north

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Science China Earth Sciences 2017年第1期60卷 173-179页

作者： ZHANG Min qiao FangLi song ZhenYa The First Institute of Oceanography State Oceanic Administration Qingdao 266061 China Laboratory for Regional Oceanography and Numerical Modeling Qingdao National Laboratory for Marine Science and Technology Qingdao 266237 China Key Lab of Marine Science and Numerical Modeling State Oceanic Administration Qingdao 266061 China

Although the Arctic methane reservoir is large,the emission of methane from the Arctic Ocean into the atmosphere remains poorly *** ship-borne measurements of atmospheric methane near the surface ocean were carried out during two cruises to investigate methane emission from the Arctic Ocean up to the latitude of 87°***-day air mass back trajectories along the cruise tracks indicated that the surface Arctic Ocean could be a potentially important source of methane to the *** bursts in methane concentration occurred mainly along the ocean frontal area,suggesting that frontal upwelling in the upper layer of the Arctic Ocean might contribute to methane emissions into the atmosphere.

关键词： Methane The Arctic Ocean Frontal upwelling

On the accumulative contribution of CO_2 emission from China to global climate change

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Science China Earth Sciences 2016年第11期59卷 2202-2212页

作者： BAO Ying qiao FangLi song ZhenYa First Institute of Oceanography State Oceanic Administration Laboratory for Regional Oceanography and Numerical Modeling Qingdao National Laboratory for Marine Science and Technology Key Lab of Marine Science and Numerical Modeling State Oceanic Administration

A study of the contribution to global climate change from China's CO_2 emission is conducted using the FIO-ESM v1.0 climate model. A series of sensitivity experiments are performed to identify two kinds of contributions to global climate change of China's CO_2 emission due to fossil fuel combustion: one is the pure contribution which is the historical climate response from the sensitivity experiment forced only by China's CO_2 emission, the other is the accumulative contribution which is proposed in this research and defined as the difference of historical climate responses between the experiments forced by all countries' CO_2 emission and other countries' CO_2 emission excluding China. The pure contribution approach considers the total CO_2 discharged by China, while the accumulative contribution approach considers not only the discharge amount of China but also the discharge order of China and other countries. The latter is a more realistic approach to quantify the contribution of CO_2 emission to the historical change of atmospheric CO_2 concentration, surface air temperature(SAT), sea surface temperature(SST) and sea ice coverage in the Arctic. Model results show that from the accumulative perspective, the ratio of the contribution of CO_2 emission from China for the increase of atmospheric CO_2 concentration, SAT and SST, and the decrease of the sea ice coverage in the Arctic to that from all other countries excluding China varies from 8% to 92%, 5% to 95%, 9% to91% and 18% to 82%, respectively. Here we take the contribution of China's CO_2 emission as an example, the contribution of CO_2 emission from any other country or area can be evaluated by the same approach.

关键词： Accumulative contribution Pure contribution Climate model CO_2 emission

Chromospheric oscillations observed with BBSO and TRACE

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Science China(Physics,Mechanics & Astronomy) 2009年第11期52卷 1718-1722页

作者： song qiao ZHANG Jun Key Laboratory of Solar Activity National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100012China

We examine chromospheric oscillations in both a coronal hole (CH) and a quiet Sun (QS) region, by employing Transition Region and Coronal Explorer (TRACE) and Big Bear Solar Observatory (BBSO) data on September 14 and 16, 2004. For the CH, the average oscillation periods of network magnetic field and non-magnetic field (NMF) regions are 257 and 222 s, respectively, and the average period of network field is longer than that of NMF region by 15.8%. In the QS, the average oscillation period is the 225 s for network field and 212 s for the NMF region. The average period of the network field is also longer than that of the NMF region by 6.1%. For the network region, we find that the average period in the CH is longer than that in the QS by 14.2%. This difference between CH and QS is possibly caused by different magnetic configurations i.e. the open magnetic field in the CH and the close field in the QS.

关键词： chromosphere oscillations UV radiation magnetic fields quiet Sun coronal hole

Far-field sonic boom prediction considering atmospheric turbulence effects: An improved approach

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Chinese Journal of Aeronautics 2022年第9期35卷 208-225页

作者： Jianling qiao Zhonghua HAN Liwen ZHANG Wenping song Bifeng song Institute of Aerodynamic and Multidisciplinary Design Optimization School of AeronauticsNorthwestern Polytechnical UniversityXi'an 710071China National Key Laboratory of Science and Technology on Aerodynamic Design and Research School of AeronauticsNorthwestern Polytechnical UniversityXi'an710071China

Accurate prediction of sonic boom is one of key challenges for the design of a low-boom supersonic aircraft. For most of available far-field prediction methods, the effect of atmospheric turbulence appearing in the planetary boundary layer cannot be considered, which results in remarkable inaccuracy of predicting ground-level sonic boom waveform. Although some efforts have been made to overcome the shortcoming, the turbulence effects are not yet well described so far. This article proposes an improved method by extending the two-dimensional Heterogeneous One-Way Approximation for the Resolution of Diffraction(HOWARD) equation to account for the axial and transverse convections of wind fluctuation as well as the effect of temperature fluctuation. The proposed method is validated by comparing the predictions with the flight-test data of JAXA D-SEND#1 LBM, which shows that the result of the proposed method is in better agreement with the flight-test data than that of the method without considering atmospheric turbulence ***, distortion mechanism of sonic boom waveforms caused by atmospheric turbulence is analyzed by using the proposed method. It is indicated that the effect of turbulent convection makes uniform sonic-boom wavefronts irregular, which creates the condition of diffraction effect to perturb waveforms. Finally, the proposed method is applied to investigate the behavior of two types of waveforms given by the sonic boom minimization theory. Results show that a far-field waveform with a weaker initial shock is more beneficial for low-boom design of a supersonic aircraft.

关键词： Atmospheric turbulence Augmented Burgers equation HOWARD equation Sonic boom Supersonic transport