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Negative effects of artiffcial nest boxes on birds:A review
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作者 Luchang Zhang Xingjian Ma +4 位作者 Zhiyu Chen chunying wang Zicheng Liu Xiang Li Xiaoying Xing 《Avian Research》 SCIE CSCD 2023年第2期257-266,共10页
Artificial nest boxes are placed to attract birds to nest and breed in a specific location,and they are widely used in avian ecology research and in the attraction of insectivorous birds.There is evidence that artific... Artificial nest boxes are placed to attract birds to nest and breed in a specific location,and they are widely used in avian ecology research and in the attraction of insectivorous birds.There is evidence that artificial nest boxes can adversely affect breeding fitness but no great focus has been placed on this issue by researchers.Therefore,we retrieved 321 research papers regarding artificial nest boxes published from 2003 to 2022 and used the'Biblioshiny'program to extract and integrate keywords;we then summarized the adverse effects of artificial nest boxes on avian breeding success.The studies highlighted many drawbacks and misuses in the designing and placement of nest boxes;furthermore,bird attraction was decreased by their inappropriate selection,thus reducing breeding success.Regarding nest box production,there were shortcomings in the construction material,color,smell,and structural design of the boxes used.Nest boxes were also placed at inappropriate densities,locations,orientations,heights,and managed incorrectly.Finally,we propose suggestions for more efficient and safer artificial nest boxes for future use in avian ecology research and bird conservation. 展开更多
关键词 Artificial nest box Avian breeding Management Negative effect Nest box hanging Nest box location Nest box structure
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Business Model Analysis of Shunxiang Hazelnut Planting Cooperative Using the Business Model Canvas
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作者 Jing Li chunying wang 《Proceedings of Business and Economic Studies》 2023年第4期26-29,共4页
Agricultural cooperatives serve as typical entities within the agricultural sector of China and encounter common representative challenges during their growth.This study employs the business model canvas theory to ana... Agricultural cooperatives serve as typical entities within the agricultural sector of China and encounter common representative challenges during their growth.This study employs the business model canvas theory to analyze the profit and business models of the Shunxiang Hazelnut Planting Cooperative while clarifying its ongoing developmental hurdles.By addressing pivotal concerns the paper puts forth branding suggestions and outlines future developmental directions. 展开更多
关键词 Business model Business model canvas Shunxiang Hazelnut Planting Cooperative
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Immune responses of dendritic cells combined with tumor-derived autophagosome vaccine on hepatocellular carcinoma 被引量:2
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作者 Yongxiang Yi Jianbo Han +7 位作者 Liang Zhao chunying wang Yuan Fang Qiang Wei Liang Hu Junmao Liu Yufeng Zhang Lili wang 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2015年第6期597-603,共7页
Background: To induce and collect tumor-derived autophagosomes (DRibbles) from tumor cells as an antitumor vaccine by inhibiting the functions of proteasomes and lysosomes. Methods: Dendritic cells (DCs) generat... Background: To induce and collect tumor-derived autophagosomes (DRibbles) from tumor cells as an antitumor vaccine by inhibiting the functions of proteasomes and lysosomes. Methods: Dendritic cells (DCs) generated from peripheral blood mononuclear cell (PBMC) of hepatocellular carcinoma (HCC) patients were cocultured with DRibbles, and then surface molecules of DCs, as well as surface molecules on DCs, were determined by flow cytometry. Meanwhile, immune responses of the DCs-DRibbles were examined by mixed lymphocyte reactions. Results: DRibbles significantly induced the expression of CD80, CD83, CD86 and HLA-DR on DCs. The enzyme-linked immunosorbnent assay (ELISA) showed that IFN-γ, levels after vaccination increased than before in most patients, but CDS+ proportion of PBMC increased only in nine patients. Higher levels of IFN-γ, were detected in the CD8+ cells than CD4+ T cells. These results suggested that DCs-DRibbles vaccine could induce antigen-specific cellular immune response on HCC and could prime strong CD8+ T cell responses, supporting it as a tumor vaccine candidate. Conclusions: Our results demonstrate that HCC/DRibbles-pulsed DCs immunotherapy might be deployed as an effective antitumor vaccine for HCC immunotherapy in clinical trials. 展开更多
关键词 AUTOPHAGY dendritic cells (DCs) antitumor immunity hepatocellular carcinoma (HCC)
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Thermal Behavior Study of Carbonate Inorganic Materials
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作者 Zhiyue Han Yuezhen Yang +2 位作者 Zhiming Du Qian Yao chunying wang 《Journal of Beijing Institute of Technology》 EI CAS 2017年第1期29-37,共9页
The thermal decomposition processes of(MgCO3)4·Mg(OH)2·5H2O(MCH),5ZnO·2CO3·4H2O(ZCH),NiCO3·2Ni(OH)2·4H2O(NCH),PbCO3(LC)and [Cr(OH)5]2·CO3·8H2O(CC)were studied ... The thermal decomposition processes of(MgCO3)4·Mg(OH)2·5H2O(MCH),5ZnO·2CO3·4H2O(ZCH),NiCO3·2Ni(OH)2·4H2O(NCH),PbCO3(LC)and [Cr(OH)5]2·CO3·8H2O(CC)were studied via TG-DSC.The results of research imply that MCH has the largest capacity of heat absorption and ZCH is second to MCH among the studied materials.The non-isothermal kinetic parameters of MCH and ZCH were calculated by Kissinger and Ozawa methods.Furthermore,thermal decomposition mechanisms of MCH and ZCH were investigated by Coats-Redfern method.Due to the large specific heat capacity,MCH and ZCH are promising to be used as a coolant in extinguishant formulations. 展开更多
关键词 CARBONATE COOLANT non-isothermal kinetic parameters thermal decomposition mecha-nism
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Tuning SMSI to stabilize metallic Pd species:A case study on Pd/TiO_(2) for HCHO oxidation
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作者 chunying wang Xiaofeng Liu +7 位作者 Jingyi wang Yaobin Li Shaohua Xie Fudong Liu Changbin Zhang Yuming Zheng Wenpo Shan Hong He 《Chinese Chemical Letters》 SCIE CAS CSCD 2024年第3期162-166,共5页
Pretreatment of the carrier for supported catalysts can effectively improve the strong metal-support interaction(SMSI)and increase the dispersion of precious metals,which are critical to many important catalytic react... Pretreatment of the carrier for supported catalysts can effectively improve the strong metal-support interaction(SMSI)and increase the dispersion of precious metals,which are critical to many important catalytic reactions.In this work,we tuned SMSI on Pd/TiO_(2)catalysts through inducing surface defects of TiO_(2)by pretreated with different atmospheres(H_(2)/N_(2),N_(2),O_(2)/N_(2))at the high temperature(800℃).Multiple characterization results illustrated that surface defects anchored Pd species and thus enhanced their dispersion.During reduction,Ti^(3+)species formed and transferred onto the metallic Pd species and then induced SMSI,which effectively stabilize Pd species in the metallic state.The stronger MSI,the more stability of Pd species.As a case,Pd/TiO_(2)–800H_(2),with strongest MSI,displayed the best HCHO oxidation performance at low temperature(10℃). 展开更多
关键词 Pd/TiO_(2) Surface defects SMSI FORMALDEHYDE Stability of Pd species
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Formaldehyde oxidation on Pd/USY catalysts at room temperature: The effect of acid pretreatment on supports 被引量:2
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作者 Xiaofeng Liu chunying wang +3 位作者 Yumin Chen Qi Qin Yaobin Li Hong He 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2023年第3期811-822,共12页
The complete catalytic oxidation of formaldehyde (HCHO) to CO_(2)and H_(2)O at room temperature is a green route for indoor HCHO removal.Zeolite is an excellent carrier material for HCHO oxidation due to its large sur... The complete catalytic oxidation of formaldehyde (HCHO) to CO_(2)and H_(2)O at room temperature is a green route for indoor HCHO removal.Zeolite is an excellent carrier material for HCHO oxidation due to its large surface area,intricate pores and high adsorption capacity.However,the zeolite-supported noble metal catalysts have currently shown relatively low activity especially at room temperature.In this work,we present a facile acid treatment strategy for zeolite catalysts to improve the hydroxyl concentration and further enhance their catalytic activity for HCHO oxidation.Activity tests illustrated that HCHO could be completely oxidized to CO_(2)and H_(2)O at a nearly 100%conversion rate with a weight hourly space velocity (WHSV) of 150,000 mL/(g·hr) at 25℃,when the support of Pd/USY catalysts was pretreated by hydrochloric acid with a concentration of 0.20 mol/L.The characterization results revealed that the active hydroxyl groups originated from the dealumination in the acid treatment play a key role in the HCHO oxidation reaction.The deduced reaction mechanism suggests that bridging hydroxyl groups may oxidize HCHO to dioxymethylene(DOM) species and terminal hydroxyl groups are responsible for the transformation of DOM groups to formate (HCOO) species. 展开更多
关键词 Formaldehyde oxidation USY zeolite Acid treatment Hydroxyl groups
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The effect of hydrogen reduction of α-MnO_(2) on formaldehyde oxidation: The roles of oxygen vacancies
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作者 Liping Zhou chunying wang +4 位作者 Yaobin Li Xiaofeng Liu Hua Deng Wenpo Shan Hong He 《Chinese Chemical Letters》 SCIE CAS CSCD 2023年第3期171-174,共4页
A series of α-MnO_(2) catalysts with various Mn valence states were treated by hydrogen reduction for different periods of time. Their catalytic capacity for formaldehyde(HCHO) oxidation was evaluated. The results in... A series of α-MnO_(2) catalysts with various Mn valence states were treated by hydrogen reduction for different periods of time. Their catalytic capacity for formaldehyde(HCHO) oxidation was evaluated. The results indicated that hydrogen reduction dramatically improves the catalytic performance of α-MnO_(2) in HCHO oxidation. The α-MnO_(2) sample reduced by hydrogen for 2 h possessed superior activity and could completely oxidize 150 ppm HCHO to CO_(2) and H_(2)O at 70℃. Multiple characterization results illustrated that hydrogen reduction contributed to the production of more oxygen vacancies. The oxygen vacancies on the catalyst surface enhanced the adsorption, activation and mobility of O_(2) molecules, and thereby enhanced HCHO catalytic oxidation. This study provides novel insight into the design of outstanding MnO_x catalysts for HCHO oxidation at low temperature. 展开更多
关键词 Hydrogen reduction α-MnO_(2) Formaldehyde oxidation Oxygen vacancies
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Bi2WO6 doped with rare earth ions:Preparation,characterization and photocatalytic activity under simulated solar irradiation 被引量:7
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作者 chunying wang Chuantao Gu +2 位作者 Ting Zeng Qingqing Zhang Xianping Luo 《Journal of Rare Earths》 SCIE EI CAS CSCD 2021年第1期58-66,I0003,共10页
Rare-earth modification Bi2WO6 composites(RE/Bi2WO6)were studied by experimental performance and theory computation based on the different 4 f orbits of selected rare earth elements(La,Ce,Gd,and Yb).The prepared RE/Bi... Rare-earth modification Bi2WO6 composites(RE/Bi2WO6)were studied by experimental performance and theory computation based on the different 4 f orbits of selected rare earth elements(La,Ce,Gd,and Yb).The prepared RE/Bi2WO6 was characterized by XRD,SEM/TEM,XPS,UV-vis DRS,and N2 adsorption to learn their physical-chemical properties.Azo dye Rhodamine B(RhB)was photodegraded as a target pollutant to investigate the photocatalytic activity of prepared RE/Bi2WO6 composites.The results of experiment and computation show that four rare earth elements with different electron configurations retain the phase and morphology of Bi2 WO6 and enhance the removal efficiency of RhB under simulated solar irradiation.The optimum doping contents are 0.01%,0.05%,0.05%and 0.01%for La-,Ce-,Gd-,and Yb-doped Bi2WO6,respectively.However,light rare earth La and Ce doped composites indicate some difference in visible light adso rption capacity and mineralization on RhB co mpared with heavy rare earth Gd and Yb doped composites.Both La/Bi2WO6 and Ce/Bi2 WO6 possess larger pore size and higher mineralization ability than Gd/Bi2 WO6 and Yb/Bi2WO6 under the same experimental conditions while Gd/Bi2WO6 and Yb/Bi2WO6 show stronger red shift to the visible light due to the more 4 f electrons.The hole oxidation plays a major role in the photodegradation of RhB by all RE/Bi2WO6. 展开更多
关键词 Rare earth Bi2WO6 Rhodamine B Hole oxidation 4f orbit
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Estimating soil ammonium adsorption using pedotransfer functions in an irrigation district of the North China Plain 被引量:5
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作者 chunying wang Defeng WU +3 位作者 Xiaomin MAO Jingming HOU Lei wang Yuping HAN 《Pedosphere》 SCIE CAS CSCD 2021年第1期157-171,共15页
Extensive use of chemical fertilizers in agriculture can induce high concentration of ammonium nitrogen(NH4^(+)_(-)N) in soil. Desorption and leaching of NH4^(+)_(-)N has led to pollution of natural waters. The adsorp... Extensive use of chemical fertilizers in agriculture can induce high concentration of ammonium nitrogen(NH4^(+)_(-)N) in soil. Desorption and leaching of NH4^(+)_(-)N has led to pollution of natural waters. The adsorption of NH4^(+)_(-)N in soil plays an important role in the fate of the NH4^(+)_(-)N. Understanding the adsorption characteristics of NH4^(+)_(-)N is necessary to ascertain and predict its fate in the soil-water environment, and pedotransfer functions(PTFs) could be a convenient method for quantification of the adsorption parameters. Ammonium nitrogen adsorption capacity, isotherms, and their influencing factors were investigated for various soils in an irrigation district of the North China Plain. Fourteen agricultural soils with three types of texture(silt, silty loam, and sandy loam) were collected from topsoil to perform batch experiments. Silt and silty loam soils had higher NH4^(+)_(-)N adsorption capacity than sandy loam soils.Clay and silt contents significantly affected the adsorption capacity of NH4^(+)_(-)N in the different soils. The adsorption isotherms of NH4^(+)_(-)N in the 14 soils fit well using the Freundlich, Langmuir, and Temkin models. The models’ adsorption parameters were significantly related to soil properties including clay,silt, and organic carbon contents and Fe^(2+) and Fe^(3+) ion concentrations in the groundwater. The PTFs that relate soil and groundwater properties to soil NH4^(+)_(-)N adsorption isotherms were derived using multiple regressions where the coefficients were predicted using the Bayesian method. The PTFs of the three adsorption isotherm models were successfully verified and could be useful tools to help predict NH4^(+)_(-)N adsorption at a regional scale in irrigation districts. 展开更多
关键词 adsorption capacity adsorption isotherm ammonium nitrogen groundwater quality soil properties
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Uniqueness of the Gossypium mustelinum Genome Revealed by GISH and 45S rDNA FISH 被引量:4
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作者 Qiong Wu Fang Liu +6 位作者 Shaohui Li Guoli Song chunying wang Xiangdi Zhang Yuhong wang David Stelly Kunbo wang 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2013年第7期654-662,共9页
Gossypium mustelinum ((AD)4) is one of five disomic species in Gossypium. Three 45S ribosomal DNA (rDNA) loci were detected in (AD)4 with 45S rDNA as probe, and three pairs of brighter signals were detected wi... Gossypium mustelinum ((AD)4) is one of five disomic species in Gossypium. Three 45S ribosomal DNA (rDNA) loci were detected in (AD)4 with 45S rDNA as probe, and three pairs of brighter signals were detected with genomic DNA (gDNA) of Gossypium D genome species as probes. The size and the location of these brighter signals were the same as those detected with 45S rDNA as probe, and were named GISH-NOR. One of them was super-major, which accounted for the fact that about one-half of its chromosome at metaphase was located at chromosome 3, and other two were minor and located at chromosomes 5 and 9, respectively. All GISH-NORs were located in A sub-genome chromosomes, separate from the other four allopolyploid cotton species. GISH-NOR were detected with D genome species as probe, but not A. The greatly abnormal sizes and sites of (AD)4 NORs or GISH-NORs indicate a possible mechanism for 45S rDNA diversification following (AD)4 speciation. Comparisons of GISH intensities and GISH-NOR production with gDNA probes between A and D genomes show that the better relationship of (AD)4 is with A genome. The shortest two chromosomes of A sub-genome of G. mustelinum were shorter than the longest chromosome of D sub-genome chromosomes. Therefore, the longest 13 chromosomes of tetraploid cotton being classified as A sub-genome, while the shorter 13 chromosomes being classified as D sub-genome in traditional cytogenetic and karyotype analyses may not be entirely correct. 展开更多
关键词 Chromosomes cotton Gossypium mustelinum in situ hybridization nucleolar organizer region genome.
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Significant enhancement in water resistance of Pd/Al2O3 catalyst for benzene oxidation by Na addition 被引量:2
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作者 Shunyu Kang Meng wang +3 位作者 Na Zhu chunying wang Hua Deng Hong He 《Chinese Chemical Letters》 SCIE CAS CSCD 2019年第7期1450-1454,共5页
A series of Na-doped 1 wt% Pd/Al2O3 catalysts with different Na loadings were prepared by wet impregnation and tested for the catalytic oxidation of benzene. Suitable addition of Na had a remarkable promotion effect o... A series of Na-doped 1 wt% Pd/Al2O3 catalysts with different Na loadings were prepared by wet impregnation and tested for the catalytic oxidation of benzene. Suitable addition of Na had a remarkable promotion effect on water resistance and enhancement of low temperature activity of Pd/Al2O3 catalysts. The optimal mole ratio between Na and Pd was 1:1. The properties of the prepared catalysts were characterized by X-ray diffraction (XRD), Brunauer Emmett Teller (BET), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), O2-temperature-programmed desorption (O2-TPD), and in situ DRIFTS. Results indicated that the addition of Na not only decreased the content of adsorbed water species but also increased the amount of liable surface oxygen species, which are likely the key factors for the excellent water resistance of the catalyst. Na addition also improved the mobility of the lattice oxygen species, which was favorable for catalytic activity. Moreover, the well-dispersed negatively charged Pd particles and suitable redox properties derived from Na addition also contributed to the improved performance and water resistance of the Na1Pd1/Al2O3 catalyst. In situ DRIFTS results revealed that benzene was oxidized to maleate and acetate species via intermediate o-benzoquinone species, which finally turned into harmless CO2 and H2O. 展开更多
关键词 SODIUM ADDITION PD/AL2O3 BENZENE Water resistance CATALYTIC oxidation
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Symptom clustering in chronic gastritis based on spectral clustering 被引量:2
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作者 Wenhua Zhu Zhaoxiang Fan +5 位作者 Guoping Liu Jianjun Yan Tao Zhong Wu Zheng Ruiqing wang chunying wang 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2014年第4期504-510,共7页
OBJECTIVE: Apply spectral clustering to analyze the patterns of symptoms in patients with chronic gastritis(CG).METHODS: Based on 919 CG subjects, we applied mutual information feature selection to choose the positive... OBJECTIVE: Apply spectral clustering to analyze the patterns of symptoms in patients with chronic gastritis(CG).METHODS: Based on 919 CG subjects, we applied mutual information feature selection to choose the positively correlated symptoms with each pattern.Then, we used the Shi and Malik spectral clustering algorithm to select the top 20 correlated symptoms.RESULTS: We ascertained the results of six patterns.There were three categories for the pattern of accumulation of damp heat in the spleen-stomach(0.00332). There were six categories for the pattern of dampness obstructing the spleen-stomach(0.02466). There were two categories for the pattern of spleen-stomach Qi deficiency(0.013 89).There were three categories for the pattern of spleen-stomach deficiency cold(0.009 15). There were five categories for the pattern of liver-Qistagnation(0.01910).There were four categories for the pattern of stagnant heat in the liver-stomach(0.00585).CONCLUSION: Most of the spectral clustering results of the symptoms of CG patterns were in accordance with clinical experience and Traditional Chinese Medicine theory. Most categories suggested the nature and/or location of the disease. 展开更多
关键词 Gastritis Cluster analysis Pattern Symptom complex
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