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动物学研究 1980年第4期 433-442页

作者： zhang GUANG-XUE ZHONG TIE-SEN(Institute of Zoology,Academia Sinica)

This paper deals with 12 species of Callaphididae from China. Among them 7 species and a genus are described as new to science. All the types are deposited in the Institute of Zoology, Academia Sinica. Tinocallis hemipteleae zhang, sp. nov. (figs. 1—12) Allied to T. takachihoensis Higuchi, 1972, but forewing with pigment bordering the veins, with spots at apices of veins, and with apical 1/5 of Rs indistinct; 1st segment of all tarsi with 7 setae; 3rd antennal segment with 14—18 transversely elongate sensoria.

关键词：触角节新属新种彩斑 APHIDOIDEA CALLAPHIDIDAE FROM CHINA NOV SIX NEW SPECIES OF TINOCALLIS MATSUMURA AND A NEW SPECIES OF SINOTHERIOAPHIS zhang gen

人参皂苷 Rg3激活线粒体功能改善慢性疼痛的机制

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中国药理学通报 2025年第1期41卷 94-100页

作者：张培根朱海丽高卉湖北科技学院医学部药学院湖北咸宁437100

目的探究人参皂苷Rg3在慢性神经性疼痛中的作用及机制。方法筛选并分析慢性神经性疼痛数据中前额叶皮层内差异性表达基因;小鼠随机分为假手术组、模型组及给药组;采用坐骨神经慢性压迫损伤模型构建神经病理性疼痛动物模型,腹腔注射人参... 详细信息

目的探究人参皂苷Rg3在慢性神经性疼痛中的作用及机制。方法筛选并分析慢性神经性疼痛数据中前额叶皮层内差异性表达基因;小鼠随机分为假手术组、模型组及给药组;采用坐骨神经慢性压迫损伤模型构建神经病理性疼痛动物模型,腹腔注射人参皂苷Rg3给药;记录小鼠痛觉行为变化;HE染色、尼氏染色、免疫印迹及免疫组化检测各组PFC脑组织神经和线粒体损伤情况;分子对接探究人参皂苷Rg3的作用靶点;Mito-Tracker检测线粒体膜电位;ATP试剂盒分析ATP含量。结果与假手术组相比,模型组小鼠表现为痛觉过敏和运动能力受损;PFC内神经及线粒体损伤(P<0.05)。与模型组相比,人参皂苷Rg3给药可增加小鼠机械痛阈值、热缩足潜伏期和转棒停留时间;同时降低PFC内炎性细胞、尼氏小体及Dnm1l阳性细胞数,下调c-Fos、IL-1β和Dnm1l蛋白表达水平(P<0.05)。分子对接显示人参皂苷Rg3可结合Dnm1l。在细胞水平,人参皂苷Rg3给药可升高线粒体膜电位和ATP含量(P<0.05)。结论人参皂苷Rg3可通过调控降低PFC内炎症因子和线粒相关蛋白表达,改善线粒体功能,缓解CCI小鼠痛觉过敏。

关键词：人参皂苷Rg3 慢性神经性疼痛线粒体前额叶皮层 CCI PFC

Monge–Ampère Type Equations on Almost Hermitian Manifolds

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Acta Mathematica Sinica,English Series 2023年第5期39卷 749-772页

作者： Jiao gen zhang School of Mathematical Sciences University of Science and Technology of ChinaHefei 230026P.R.China

In this paper we consider the Monge–Ampère type equations on compact almost Hermitian *** derive C∞a priori estimates under the existence of an admissible ***,we obtain an existence result if there exists an admiss... 详细信息

关键词： Monge-Ampere type equations almost Hermitian manifold a priori estimates subsolution

N-doped graphene quantum dot-decorated N-TiO2/P-doped porous hollow g-C_(3)N_(4) nanotube composite photocatalysts for antibiotic photodegradation and H2 production

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International Journal of Minerals,Metallurgy and Materials 2024年第1期31卷 165-178页

作者： Jingshu Yuan Yao zhang Xiaoyan zhang Junjie zhang Shen’gen zhang Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China Xi’an Fanyi University Xi’an 710105China Shunde Graduate School of University of Science and Technology Beijing Foshan 528399China State Key Laboratory of Lunar and Planetary Sciences Macao University of Science and TechnologyMacao SAR 820000China

Exclusive responsiveness to ultraviolet light (~3.2 eV) and high photogenerated charge recombination rate are the two primary drawbacks of pure TiO_(2). We combined N-doped graphene quantum dots (N-GQDs), morphology regulation, and heterojunction construction strategies to synthesize N-GQD/N-doped TiO_(2)/P-doped porous hollow g-C_(3)N_(4) nanotube (PCN) composite photocatalysts (denoted as G-TPCN). The optimal sample (G-TPCN doped with 0.1wt% N-GQD, denoted as 0.1% G-TPCN) exhibits significantly enhanced photoabsorption, which is attributed to the change in bandgap caused by elemental doping (P and N), the improved light-harvesting resulting from the tube structure, and the upconversion effect of N-GQDs. In addition, the internal charge separation and transfer capability of0.1% G-TPCN are dramatically boosted, and its carrier concentration is 3.7, 2.3, and 1.9 times that of N-TiO_(2), PCN, and N-TiO_(2)/PCN(TPCN-1), respectively. This phenomenon is attributed to the formation of Z-scheme heterojunction between N-TiO_(2) and PCNs, the excellent electron conduction ability of N-GQDs, and the short transfer distance caused by the porous nanotube structure. Compared with those of N-TiO_(2), PCNs, and TPCN-1, the H2 production activity of 0.1%G-TPCN under visible light is enhanced by 12.4, 2.3, and 1.4times, respectively, and its ciprofloxacin (CIP) degradation rate is increased by 7.9, 5.7, and 2.9 times, respectively. The optimized performance benefits from excellent photoresponsiveness and improved carrier separation and migration efficiencies. Finally, the photocatalytic mechanism of 0.1% G-TPCN and five possible degradation pathways of CIP are proposed. This study clarifies the mechanism of multiple modification strategies to synergistically improve the photocatalytic performance of 0.1% G-TPCN and provides a potential strategy for rationally designing novel photocatalysts for environmental remediation and solar energy conversion.

关键词： N-doped TiO_(2) N-doped graphene quantum dots P-doped g-C_(3)N_(4) porous hollow nanotube heterojunction photocatalysis

Using coal fly ash-based geopolymer to immobilize Cd from lead fuming furnace slag

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Rare Metals 2023年第3期42卷 1056-1060页

作者： Bin Guo Bo Liu Shen-gen zhang Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China

Lead fuming furnace slag(LFFS)is a by-product of lead metal production,which is a toxic solid waste according to toxicity characteristic leaching procedure(TCLP)*** was investigated the feasibility of preparation of geopolymer using coal fly ash(CFA)and LFFS and the immobilization efficiency of Cd in *** synthesized geopolymer samples were examined by compressive strength,Fourier transform transmission infrared spectroscopy(FTIR)spectra,X-ray diffraction(XRD)and backscattered electron(BSE)*** is a certain mass ratio(2:3)of the LFFS to the CFA at which the compressive strength of the geopolymeric matrix is the *** test shows that Cd in LFFS can be effectively immobilized in the geopolymer *** is not only a potential technological solution for reusing LFFS but also an effective immobilization method for LFFS treatment and disposal.

关键词： Immobilization Cd Geopolymer Lead fuming furnace slag

Integrated utilization of municipal solid waste incineration fly ash and bottom ash for preparation of foam glass-ceramics

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Rare Metals 2019年第10期38卷 914-921页

作者： Bo Liu Qiang-Wei Yang Shen-gen zhang Institute for Advanced Materials and Technology University of Science and Technology Beijing

For the purpose of solid waste co-disposal and heavy metal stabilization,foam glass-ceramics were produced by using municipal solid waste incineration(MWSI)bottom ash and fly ash as main raw materials,calcium carbonate(CaCO3) as foamer and sodium phosphate(Na3PO4) as foam *** influences of the raw material composition,foaming temperature and foaming time on the properties were ***,bulk density,mechanical property and leaching of heavy metals were analyzed *** product,foamed at 1150℃ for 30 min with 14% fly ash and 74% bottom ash,exhibits excellent comprehensive properties,such as high porosity(76.03%),low bulk density(0.67 g·cm-3) and high compressive strength(10.56 MPa).Moreover,the amount of leaching heavy metals,including Cr,Pb,Cu,Cd and Ni,in foam glass-ceramics is significantly lower than that of the US EPA hazardous waste *** study not only realizes the integrated utilization of bottom ash and fly ash,but also addresses a new strategy for obtaining foam glass-ceramics.

关键词： Municipal solid waste incineration ash Foamglass-ceramics Mechanical properties Stabilization

Sludge concentration dynamic distribution and its impact on the performance of UNITANK

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Journal of Environmental Sciences 2007年第2期19卷 141-147页

作者： zhang Fa-gen LIU Jun-xin SUI Jun Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China Guangzhou Municipal Engineering Design and Research Institute Guangzhou 510060 China

UNITANK is a biological wastewater treatment process that combines the advantages of traditional activated sludge process and sequencing batch reactor, which is divided into Tank A, B and C. In this study, the sludge distribution and its impact on performance of UNITANK were carried out in Liede Wastewater Plant （WWTP） of Guangzhou, China. Results showed that there was a strong affiliation between Tank A and B of the system in sludge concentration distribution. The initial sludge concentration in Tank A could present the sludge distribution of the whole system. The sludge distribution was mainly influenced by hydraulic condition. Unsteady sludge distribution had an impact on variations of substrates in reactors, especially in decisive reactor, and this could lead to failure of system. Settler could partially remove substrates such as COD and NO3-N, but there was adventure of sludge deterioration. The rational initial sludge concentration in Tank A should be 4000-6000 mg/L MLSS.

关键词： UNITANK sludge concentration dynamic distribution in-process study

Seasonal and diurnal variations of atmospheric peroxyacetyl nitrate, peroxypropionyl nitrate, and carbon tetrachloride in Beijing

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Journal of Environmental Sciences 2014年第1期26卷 65-74页

作者： gen zhang Yujing Mu Junfeng Liu Chenglong zhang Yuanyuan zhang Yujie zhang Hongxing zhang Research Center for Eco-Environmental Sciences Chinese Academy of Sciences

Atmospheric peroxyacetyl nitrate （PAN）, peroxypropionyl nitrate （PPN）, and carbon tetrachloride （CCl4） were measured from September 2010 to August 2011 in Beijing. PAN exhibited low values from mid-autumn to early spring （October to March） with monthly average concentrations ranging from 0.28 to 0.73 ppbV, and increased from early spring to summer （March to August）, ranging from 1.37-3.79 ppbV. The monthly variation of PPN was similar to PAN, with low values （below detection limit to 0.18 ppbV） from mid-autumn to early spring, and a monthly maximum in September （1.14 ppbV）. The monthly variation of CCl4 was tightly related to the variation of temperature, exhibiting a minimum in winter （69.3 pptV） and a maximum of 180.6 pptV in summer. Due to weak solar intensity and short duration, PAN and O3 showed no distinct diurnal patterns from morning to night during winter, whereas for other seasons, they both exhibited maximal values in the late afternoon （ca. 15：00 to 16：00 local time） and minimal values during early morning and midnight. Good linear correlations between PAN and PPN were found in autumn （R = 0.91）, spring （R = 0.94）, and summer （R = 0.81）, with slopes of 0.130, 0.222, and 0.133, respectively, suggesting that anthropogenic hydrocarbons dominated the photochemical formation of PANs in Beijing. Positive correlation between PAN and O3 in summer with the low slopes （AO3/APAN） ranging from 9.92 to 18.0 indicated serious air pollution in Beijing, and strong negative correlation in winter reflected strong O3 consumption by NO titration and less thermal decompositin of PAN.

关键词： atmospheric peroxyacetyl nitrate peroxypropionyl nitrate carbon tetrachloride Beijing atmosphere

Analysis of the Attenuation Characteristics of an Elastic Wave Due to the Wave-Induced Fluid Flow in Fractured Porous Media

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Chinese Physics Letters 2014年第4期31卷 76-80页

作者： WANG Ding WANG Li-Ji zhang Mei-gen Key Laboratory of Petroleum Resources Research Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric Physics Chinese Academy of sciences Beijing 100029 Ur~iversity of Chinese Academy of Sciences Beijing 100049

A theoretical model is presented to describe the elastic wave propagation characteristics in porous media of periodically arranged fractures. The effects of fracture geometric parameters on a compressional wave （p-wave） are considered through analysis of the wave induced fluid flow （WIFF） process between the fractures and the background media. The diffusion equation in porous media is used to reveal how the entire diffusion process affects the wave propagation. When the thickness proportion of fractures tends to 0 and 1, the WIFF does not take place almost between fractures and background matrix porosity, and therefore the media elasticity modulus is perfectly elastic. When the fracture thickness fraction achieves a certain value, the peak of the attenuation curve reaches the maximum value at a particular frequency, which is controlled by the fluid mass conservation and stress continuity conditions on each fracture boundary. That is, the inter-coupling of fluid diffusion between the adjacent layers is important for waves attenuation. Physically speaking, the dissipation of a wave is associated with the fluid flux essentially.

关键词： POROUS materials ELASTIC wave propagation ATTENUATION (Physics) MICROWAVES -- Attenuation ELASTIC waves

Possibilities for the synthesis of superheavy element Z=121 in fusion reactions

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Nuclear Science and Techniques 2024年第6期35卷 90-100页

作者： Ming-Hao zhang Yu-Hai zhang Ying Zou Xiu-Xiu Yang gen zhang Feng-Shou zhang The Key Laboratory of Beam Technology of Ministry of Education College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China Institute of Radiation Technology Beijing Academy of Science and TechnologyBeijing 100875China School of Physical Science and Technology Guangxi UniversityNanning 530004China National Laboratory of Heavy Ion Accelerator of Lanzhou Center of Theoretical Nuclear PhysicsLanzhou 730000China

Based on the dinuclear system model,the calculated evaporation residue cross sections matched well with the current experimental *** synthesis of superheavy elements Z=121 was systematically studied through combinations of stable projectiles with Z=21-30 and targets with half-lives exceeding 50 *** influence of mass asymmetry and isotopic dependence on the projectile and target nuclei was investigated in *** reactions^(254)Es(^(46)Ti,3n)^(297)121 and^(252)Es(^(46)Ti,3n)^(295)121 were found to be experimentally feasible for synthesizing superheavy element Z=121,with maximal evaporation residue cross sections of 6.619 and 4.123 fb at 219.9 and 223.9 MeV,respectively.

关键词： Superheavy nuclei Dinuclear system model Fusion reaction Evaporation residue cross section