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| 1 | A method for gravity anomaly separation based on preferential continuation and its application显示文摘基于 Pawlowski (1995 ) 建议的优先的继续方法,我们在各种各样的来源互相是 uncorrelated 与,继续高度足够大的情况中与优先的向上的继续操作员为严肃异例分离建议一个方法和过程。我们也为估计最佳介绍一个方法向上继续的高度,与不同继续高度基于分析一个综合严肃异例的优先的向上的继续操作员的特征变化。方法在铁存款上在未加工的 Bouguer 严肃数据上被测试。结果证明方法高效地并且清楚地把数据分开成地区性的异例和剩余异例。 | Meng Xiaohong Guo Lianghui Chen Zhaox Li Shuling Shi Lei | 2009 | Applied Geophysics2009，6，3： | 31 |
| 2 | Selective catalytic oxidation of NO with O_2 over Ce-doped MnO_x/TiO_2 catalysts显示文摘A series of Ce-doped MnOx/TiO2 catalysts were prepared by impregnation method and used for catalytic oxidation of NO in the presence of excess O2. The sample with the Ce doping concentration of Ce/Mn=1/3 and calcined at 300°C shows a superior activity for NO oxidation to NO2. On Ce(1)Mn(3)Ti catalyst, 58% NO conversion was obtained at 200°C and 85% NO conversion at 250°C with a GHSV of 41000 h-1, which was much higher than that over MnOx/TiO2 catalyst (48% at 250°C). Characterization results implied that the higher activity of Ce(1)Mn(3)Ti could be attributed to the enrichment of well-dispersed MnOx on the surface and the abundance of Mn3+ and Ti3+ species. The addition of Ce into MnOx/TiO2 could improve oxygen storage capacity and facilitate oxygen mobility of the catalyst as shown by PL and ESR, so that its activity for NO oxidation could be enhanced. The effect of H2O and SO2 on the catalyst activity was also investigated. | Xiaohai Li Shule Zhang Yong Jia Xiaoxiao Liu Qin Zhong | 2012 | Journal of Natural Gas Chemistry2012，21，1： | 26 |
| 3 | Variational principles and governing equations in nano-dielectrics with the flexoelectric effect显示文摘The flexoelectric effect is very strong and coupled with large strain gradients for nanoscale dielectrics. At the nanoscale, the electrostatic force cannot be ignored. In this paper, we have established the electric enthalpy variational principle for nanosized dielectrics with the strain gradient and the polarization gradient effect, as well as the effect of the electrostatic force. The complete governing equations, which include the effect of the electrostatic force, are derived from this variational principle, and based on the principle the generalized electrostatic stress is obtained, the generalized electrostatic stress contains the Maxwell stress corresponding to the polarization and strain, and stress related to the polarization gradient and strain gradient. This work provides the basis for the analysis and computations for the electromechanical problems in nanosized dielectric materials. | HU ShuLing & SHEN ShengPing* MOE Key Laboratory for Strength and Vibration, School of Aerospace, Xi’an Jiaotong University, Xi’an 710049, China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，8： | 11 |
| 4 | Role of chloride channels in nitric oxide-induced rat hippocampal neuronal apoptosis in vitro显示文摘BACKGROUND:Chloride channels participate in non-neuronal apoptosis.However,it remains unclear whether chloride channels are involved in ischemic neuronal apoptosis.OBJECTIVE:To explore the effects of 4-acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic acid (SITS) and 4,4'-diisothiocyanostilbene-2,2'-disulfonic acid (DIDS),two chloride channel blockers,on the hippocampal neuronal apoptosis induced by 3-morpholinosydnonimine (SIN-1) based on the nitric oxide toxicity theory of neuronal apoptosis following ischemic brain injury.DESIGN,TIME AND SETTING:Comparative observation and in vitro experiments were performed at the laboratory of Zhuhai Campus of Zunyi Medical College from January to May 2009.MATERIALS:SIN-1,SITS,and DIDS were purchased from Sigma,USA.METHODS:Hippocampal neurons from Sprague-Dawley rats,aged 1 day,were cultured in vitro for 12 days and randomly assigned to control,SIN-1,or chloride channel blocker groups.SIN-1 group neurons were induced by SIN-1 for 18 hours to establish a model of ischemic neuronal apoptosis.Neurons in chloride channel blocker groups were treated with SITS or DIDS plus SIN-1 for 18 hours.The controls were cultured in DMEM/Ham's F12 complete medium alone.MAIN OUTCOME MEASURES:The apoptotic neurons and nuclear appearance were detected by Hoechst 33258 fluorescence staining;neuronal viability was quantitatively determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide analysis.Caspase-3 activity was analyzed by Western blot.RESULTS:SIN-1 (1 mmol/L) dramatically induced apoptosis (50%-60%).SITS and DIDS inhibited nitric oxide-induced neuronal injury in a dose-dependent manner,suppressed caspase-3 activation,reduced neuronal apoptosis,and improved neuronal survival.CONCLUSION:Chloride channel blockers can protect against neuronal injury induced by NO.Chloride channels might be involved in neuronal apoptosis following cerebral ischemia. | Quanzhong Chang Shuling Zhang Jinbao Yin | 2010 | Neural Regeneration Research2010，5，9： | 9 |
| 5 | Surface modification of small intestine submucosa in tissue engineering显示文摘With the development of tissue engineering,the required biomaterials need to have the ability to promote cell adhesion and proliferation in vitro and in vivo.Especially,surface modification of the scaffold material has a great influence on biocompatibility and functionality of materials.The small intestine submucosa(SIS)is an extracellular matrix isolated from the submucosal layer of porcine jejunum,which has good tissue mechanical properties and regenerative activity,and is suitable for cell adhesion,proliferation and differentiation.In recent years,SIS is widely used in different areas of tissue reconstruction,such as blood vessels,bone,cartilage,bladder and ureter,etc.This paper discusses the main methods for surface modification of SIS to improve and optimize the performance of SIS bioscaffolds,including functional group bonding,protein adsorption,mineral coating,topography and formatting modification and drug combination.In addition,the reasonable combination of these methods also offers great improvement on SIS surface modification.This article makes a shallow review of the surface modification of SIS and its application in tissue engineering. | Pan Zhao Xiang Li Qin Fang Fanglin Wang Qiang Ao Xiaohong Wang Xiaohong Tian Hao Tong Shuling Bai Jun Fan | 2020 | Regenerative Biomaterials2020，7，4： | 9 |
| 6 | Randomized controlled trial of four protocols of repetitive transcranial magnetic stimulation for treating the negative symptoms of schizophrenia显示文摘 | Suhua ZHAO Jiehua KONG Shuling LI Zishun TONG Chanjuan YANG Huaqin8 ZHONG | 2014 | 上海精神医学2014，26，1： | 9 |
| 7 | Sini powder ameliorates the inflammatory response in rats with stress-induced non-alcoholic fatty liver disease by inhibiting the nuclear factor kappa-B/pyrin domain-containing protein 3 pathway显示文摘OBJECTIVE: To evaluate the effectiveness of Sini powder for the treatment of non-alcoholic fatty liver disease(NAFLD) in rats and the molecular mechanisms involved.METHODS: A rat model of stress-induced NAFLD was established by a combination of long-term tethering and feeding of a high-fat, high-calorie diet. These rats were then intragastrically administered with either simvastatin, Sini powder, or vehicle for 1 week. The body mass and field test scores for each group were recorded weekly. Serum aspartate aminotransferase and alanine aminotransferase activities, and triglyceride, total cholesterol,and free fatty acid concentrations were measured.Liver tissue histopathology was examined on hematoxylin and eosin-stained paraffin sections and oil red O-stained frozen sections. The hepatic m RNA expression of nuclear factor kappa-B(NF-κB),NOD-, LRR-, and pyrin domain-containing protein 3(NLRP3), apoptosis-associated speck-like protein containing CARD(ASC), and caspase-1 were measured by reverse transcription-polymerase chain reaction(RT-PCR). The hepatic protein concentrations of NF-κB and NLRP3, ASC, caspase-1, interleukin-1β(IL-1β), interleukin-6(IL-6), and the serum concentrations of IL-1β and IL-6 were measured by enzyme-linked immunosorbent assay.RESULTS: Compared with the Blank group, rats in the Compound model group showed significant pathologic manifestations of NAFLD, and the expression of NF-κB, NLRP3, ASC, caspase-1, IL-1βand IL-6 were significantly higher(all P < 0.01). Both simvastatin and Sini powder significantly ameliorated the NAFLD pathology and the abnormal expression of NF-κB, NLRP3, ASC, caspase-1, IL-1β, and IL-6(all P < 0.01).CONCLUSION: Sini powder inhibits the inflamma-tory response in rats with NAFLD, which is mediated by NF-κB/NLRP3, IL-1β, and IL-6, reduces the effects of psychological stress, and improves lipid metabolism. Therefore, Sini powder may be effective for the treatment of stress-related NAFLD through multiple mechanisms. | Mu Jie Cheng Fafeng Wang Qingguo Wang Xueqian Zhu Wenxiang Ma Chongyang Yin Xiangjun Ren Beida Lian Yajun Du Xin Zhang Haixia Liu Shuling Zhang Shuang | 2020 | Journal of Traditional Chinese Medicine2020，40，2： | 9 |
| 8 | ^11C-PIBPET和^18F-FDGPET显像诊断阿尔茨海默病与遗忘型轻度认知损害的临床价值显示文摘目的应用11C-PIB PET和18F-FDG PET显像研究阿尔茨海默病和遗忘型轻度认知损害患者β-淀粉样蛋白(Aβ)沉积与葡萄糖代谢之间的关系,联合载脂蛋白E(ApoE)基因型进一步探讨遗忘型轻度认知损害与阿尔茨海默病的相关性。方法利用PET显像对阿尔茨海默病(14例)、遗忘型轻度认知损害(10例)和正常对照者(5例)脑组织Aβ沉积和葡萄糖代谢变化进行分析,采用聚合酶链反应-限制性片段长度多态性方法对ApoE基因型进行分析。结果阿尔茨海默病组患者11C-PIB标准化摄取比值在下顶叶、颞叶外侧、额叶、后扣带回皮质和楔前叶、枕叶和纹状体均高于正常对照组(P<0.05);遗忘型轻度认知损害组患者脑组织11C-PIB结合水平呈双峰形。11C-PIB+aMCI亚组与阿尔茨海默病组、11C-PIB-aMCI亚组与正常对照组之间11C-PIB标准化摄取比值差异均无统计学意义(P>0.05)。18F-FDG PET显像显示,3/5例11C-PIB+aMCI亚组患者双侧顶叶、颞叶和楔前叶代谢减低,其中2例ApoEε4等位基因携带者随访期间进展至阿尔茨海默病;3/5例11C-PIB-aMCI亚组患者双侧额叶和前扣带回代谢减低。结论11C-PIB PET显像是筛查具有阿尔茨海默病病理特点的遗忘型轻度认知损害患者的有效工具。具有阿尔茨海默病病理特征的遗忘型轻度认知损害患者可伴有顶叶、颞叶外侧皮质和楔前叶代谢减低,其中ApoEε4等位基因携带者更易进展至阿尔茨海默病痴呆。 | Shi Zhihong Wang Ying Liu Shuai Liu Shuling Z hou Yuying Wang Jinhuan Cai Li Gao Shuo Ji Yong | 2014 | 中国现代神经疾病杂志2014，14，3： | 8 |
| 9 | Study on expresion of adherent proteins related to regulation of hematopoiesis in long-term cultured human bone marrow stromal cells显示文摘Studyonexpresionofadherentproteinsrelatedtoregulationofhematopoiesisinlongtermculturedhumanbonemarrowstromalcels.LiuJiewen,... | Liu Jiewen, Qi Shuling, E de Wynter, et al. Institute of Hematology, CAMS and PUMC, Tianjin 300020, China. | 1998 | Chinese Medical Journal1998，，2： | 8 |
| 10 | Hepatocyte growth factor improves right ventricular remodeling in pulmonary arterial hypertensive rats via decreasing neurohormonal activation and inhibiting apoptosis显示文摘 | Wang Xiaolin Wang Yongjin Rong Shuling Ma Hongbiao Ma Qing Zhao Junqing | 2014 | Chinese Medical Journal2014，，10： | 7 |
| 11 | 1-MCP Regulates Ethanol Fermentation and GABA Shunt Pathway Involved in Kiwifruit Quality During Postharvest Storage显示文摘Kiwifruit(Actinidia deliciosa)‘Bruno’is prone to accumulate ethanol rapidly after respiratory climacteric during storage at ambient conditions without stresses,which causes quality deterioration of the fruit associated with alcohol off-flavor.For maintaining the postharvest quality of kiwifruit‘Bruno’,the effects of 1.0μL•L^−11-methylcyclopropene(1-MCP)treatment on regulating the ethanol fermentation andγ-aminobutyric acid(GABA)shunt pathway associated with control of alcohol off-flavor were investigated during storage at room temperature(24±1)°C for 27 days.The results showed that 1-MCP treatment significantly reduced the respiration rate,ethylene production,decay rate,ascorbic acid(AsA)loss,and delayed the decline in the firmness and titratable acidity(TA),and the increase in total soluble solid(TSS)in kiwifruit.Furthermore,1-MCP treatment effectively inhibited the increases in contents of acetaldehyde,ethanol,and GABA along with the suppressed activities of key enzymes involved in ethanol fermentation and GABA shunt pathway,such as pyruvate decarboxylase(PDC),alcohol dehydrogenase(ADH),glutamate decarboxylase(GAD),and GABA-transaminase(GABA-T)in kiwifruit during storage.In conclusion,1-MCP treatment efficiently regulated the ethanol fermentation and GABA shunt pathway by delaying the ripening process to avoid the alcohol off-flavor development,thereby contributed to maintaining the quality of the kiwifruit. | Maratab Ali Muhammad Ammar Raza Shenge Li Lichao Zhou Chen Huan Shen Shuling Xiaolin Zheng | 2021 | Horticultural Plant Journal2021，7，1： | 7 |
| 12 | Efect of chromium oxide as active site over TiO_2-PILC for selective catalytic oxidation of NO显示文摘This study introduced TiO2-pillared clays(TiO2-PILC) as a support for the catalytic oxidation of NO and analyzed the performance of chromium oxides as the active site of the oxidation process. Cr-based catalysts were prepared by a wet impregnation method. It was found that the 10 wt.% chromium doping on the support achieved the best catalytic activity. At 350℃, the NO conversion was 61% under conditions of GHSV = 23600 hr 1. The BET data showed that the support particles had a mesoporous structure. H2-TPR showed that Cr(10)TiP(10 wt.% Cr doping on TiO2-PILC) clearly exhibited a smooth single peak. EPR and XPS were used to elucidate the oxidation process. During the NO + O2 adsorption, the intensity of evolution of superoxide ions(O2) increased. The content of Cr3+ on the surface of the used catalyst was 40.37%, but when the used catalyst continued adsorbing NO, the Cr3+increased to 50.28%. Additionally, Oα /O β increased markedly through the oxidation process. The NO conversion decreased when SO2 was added into the system, but when the SO2 was removed, the catalytic activity recovered almost up to the initial level. FT-IR spectra did not show a distinct characteristic peak of SO4 2. | Jingxin Zhang Shule Zhang Wei Cai Qin Zhong | 2013 | Journal of Environmental Sciences2013，25，12： | 6 |
| 13 | Characteristics of vascular lesions in patients with posterior circulation infarction according to age and region of infarct显示文摘Patients with posterior circulation infarction underwent CT angiography and magnetic resonance angiography. Intracranial and extracranial vasculopathy was evaluated according to age group and location of stroke. Patients aged > 60 years and < 60 years had similar rates of vertebral artery dominance and vertebrobasilar artery developmental or origin anomalies. Vertebrobasilar artery stenosis or occlusion and tortuosity occurred more frequently in patients aged > 60 years than < 60 years. The rates of vertebrobasilar artery anomalies and tortuosity were high in patients with posterior circulation infarction. Vertebrobasilar artery tortuosity occurred more frequently in patients aged > 60 years, whereas vertebrobasilar artery developmental anomalies occurred with similar frequency in patients aged < 60 years and > 60 years. Patients with infarction of the brainstem or cerebellum were more likely to have vertebral artery stenosis or occlusion, basilar artery stenosis or occlusion, vertebral artery dominance or tortuosity, and basilar artery tortuosity, and patients with infarction of the thalamus, medial temporal, or occipital lobes were more likely to have stenosis or occlusion of the vertebral or basilar arteries. Vertebrobasilar artery tortuosity, vertebral artery dominance (hypoplasia), and congenital variations of the vertebrobasilar system may lead to posterior circulation infarction at different locations in different age groups. | Daopei Zhang Shuling Zhang Hongtao Zhang Yuming Xu | 2012 | Neural Regeneration Research2012，7，32： | 5 |
| 14 | The leaching of additive-derived flame retardants(FRs) from plastics in avian digestive fluids:The significant risk of highly lipophilic FRs显示文摘The exposure to plastic debris and associated pollutants for wildlife is of urgent concern,but little attention has been paid on the transfer of plastic additives from plastic debris to organisms.In the present study,the leaching of incorporated flame retardants (FRs),including polybrominated diphenyl ethers (PBDEs),alternative brominated FRs (AFRs),and phosphate flame retardants (PFRs),from different sizes of recycled acrylonitrile-butadiene-styrene (ABS) polymer were investigated in avian digestive fluids.The impact of co-ingested sediment on the leaching of additive-derived FRs in digestive fluids was also explored.In the recycled ABS,BDE 209 (715 μg/g) and 1,2-bis(2,4,6-tribromophenoxy) ethane (BTBPE,1766 μg/g) had the highest concentrations among all target FRs.The leaching proportions of FRs were higher in finer sizes of ABS.The leaching proportions of FRs from recycled ABS increased with elevated logKow of FRs.In the tests with coexisted ABS and sediment,hexato deca-BDEs,BTBPE,and decabromodiphenyl ethane (DBDPE) migrated from ABS to sediment,which resulted in the less bioaccessible fractions of these FRs in gut fluids.More lipophilic chemicals tended to be adsorbed by sediment from ABS.The results suggest the migration of additive-derived FRs from plastics to other indigestible materials in digestive fluids.The findings in this study provide insights into the transfer of additive-derived FRs from plastics to birds,and indicate the significant contribution of FR-incorporated plastics to bioaccumulation of highly lipophilic FRs. | Huiying Guo Xiaobo Zheng Shuling Ru Xiaojun Luo Bixian Mai | 2019 | Journal of Environmental Sciences2019，31，11： | 5 |
| 15 | Mechanism underlying effect of Chaihu Shugan San(柴胡疏肝散)on major depressive disorder:a network pharmacology-based study显示文摘OBJECTIVE:To investigate the mechanism underpinning the effect of Chaihu Shugan San(柴胡疏肝散,CHSGS)on major depressive disorder(MDD).METHODS:We searched the compound components of from seven herbal ingredients of CHSGS from TCMSP,SymMap,ETCM,NPASS databases,and the chemical structure of the compound from PubChem,and collected the compound targets from TCMSP and TargetNet databases,and MDD-related targets from DiseaseGene Network.We established protein-protein interaction in the STRING database.Through gene mapping,topology analysis and enrichment analysis,the core targets and pathways of CHSGS for MDD,and the involved biological processes(BP),cell components(CC),and molecular functions(MF)were predicted.RESULTS:We collected a total of 1135 CHSGS compounds.After screening by ADME standards and the five rules of Ribinski,we obtained 99 different chemical components with different chemical structures,and related targets of 183 different CHSGS compounds.In the DiseaseGene Network,a total of 740 relevant targets for MDD were collected.Through gene mapping and topological analysis,62 related targets of CHSGS for MDD,24 targets with topological Chinese herbal medicine were obtained.Through enrichment analysis,10 relevant pathways and 3 core pathways were obtained with the involvement of 127 BP,27 CC,and 43 MF.CONCLUSION:There are multiple targets and signaling pathways are involved in the action of CHSGS in the treatment of MDD. | MU Jie ZHANG Shuang TANG Feifei LIU Shuling ZHANG Qianyi DU Qianlei WANG Xueqian WANG Qingguo CHENG Fafeng | 2021 | Journal of Traditional Chinese Medicine2021，41，2： | 4 |
| 16 | 洛阳旅游气候研究显示文摘适宜的气候是重要的旅游资源。作者重点讨论洛阳的人文景观和自然景观与气候环境的关系以及适应洛阳旅游的最佳季节 ,提出要大力发展洛阳的旅游业 ,应充分利用。 | 任炳潭 Ma Shuling Sheng 马淑玲 盛建萍 董廷猷 | 2001 | 气象2001，27，2： | 4 |
| 17 | A 14 nucleotide deletion mutation in the coding region of the PpBBX24 gene is associated with the red skin of“Zaosu Red”pear(Pyrus pyrifolia White Pear Group):a deletion in the PpBBX24 gene is associated with the red skin of pear显示文摘Red skin is an important quality trait for pear fruits and is determined by the concentration and composition of anthocyanins.The regulatory mechanism underlying anthocyanin accumulation is a popular topic in fruit research.Red mutants are ideal materials for studying the molecular mechanism of color diversity in pear.Although several red pear mutants have been cultivated and are in production,no exact locus containing the responsible genetic mutation has been identified.In this study,by combining the bulked segregant analysis with whole-genome sequencing,we identified a 14 nucleotide deletion mutation in the coding region of the PpBBX24 gene from the red pear mutant“Zaosu Red”.We further verified that the deletion was present only in the red mutant of“Zaosu”and in its red offspring,which was different from that which occurred in other red pear fruits.This deletion results in a coding frame shift such that there is an early termination of the PpBBX24 gene and loss of key NLS and VP domains from PpBBX24.The lost domains may reduce or alter the normal function of PpBBX24.In addition,we found that the transcript levels of the PpMYB10 and PpHY5 genes in red samples were significantly higher than those in green samples,whereas the results for the normal-type PpBBX24 gene were the opposite.We ultimately revealed that the 14 nucleotide deletion mutation in the coding region of the PpBBX24 gene is associated with the red skin of the“Zaosu Red”pear.This finding of somatic mutational events will be helpful for breeding new red pear cultivars and for understanding the regulatory mechanisms involved in pear skin pigmentation. | Chunqing Ou Xiaoli Zhang Fei Wang Liyi Zhang Yanjie Zhang Ming Fang Jiahong Wang Jixun Wang Shuling Jiang Zhihong Zhang | 2020 | Horticulture Research2020，7，1： | 4 |
| 18 | Engineering rock mechanics practices in the underground powerhouse at JinpingⅠhydropower station显示文摘Based on the analyses of data obtained from the underground powerhouse at Jinping Ⅰ hydropower station,a comprehensive review of engineering rock mechanics practice in the underground powerhouse is first conducted.The distribution of strata,lithology,and initial geo-stress,the excavation process and corresponding rock mass support measures,the deformation and failure characteristics of the surrounding rock mass,the stress characteristics of anchorage structures in the cavern complex,and numerical simulations of surrounding rock mass stability and anchor support performance are presented.The results indicate that the underground powerhouse of Jinping Ⅰ hydropower station is characterized by high to extremely high geo-stresses during rock excavation.Excessive surrounding rock mass deformation and high stress of anchorage structures,surrounding rock mass unloading damage,and local cracking failure of surrounding rock masses,etc.,are mainly caused by rock mass excavation.Deformations of surrounding rock masses and stresses in anchorage structures here are larger than those found elsewhere:20%of extensometers in the main powerhouse record more than 50 mm with the maximum at around 250 mm observed in the downstream sidewall of the transformer hall.There are about 25%of the anchor bolts having recorded stresses of more than 200 MPa.Jinping Ⅰ hydropower plant is the first to have an underground powerhouse construction conducted in host rocks under extremely high geo-stress conditions,with the ratio of rock mass strength to geo-stress of less than 2.0.The results can provide a reference to underground powerhouse construction in similar geological conditions. | Aiqing Wu Jimin Wang Zhong Zhou Shuling Huang Xiuli Ding Zhihong Dong Yuting Zhang | 2016 | Journal of Rock Mechanics and Geotechnical Engineering2016，8，5： | 4 |
| 19 | Low-cost preparation of mesoporous silica with high pore volume显示文摘Mesoporous silica materials with high pore volume were successfully prepared by the chemical precipitation method, with water glass and a biodegradable nonionic surfactant polyethylene glycol (PEG). The obtained materials were characterized by trans-mission electron microscopy (TEM), scanning electron microscopy (SEM), thermo gravimetric analyzer and differential scanning calorimetry (TG-DSC), nitrogen adsorption-desorption measurements, and X-ray diffraction (XRD). The results showed that the changes of the pore parameters depended on both the surfactant content and heat treatment temperature. When the content of PEG was 10wt/ and the obtained PEG/SiO2 composite was heated at 600°C, the mesoporous silica with a pore volume of 2.2 cm3/g, a BET specific surface area of 361.55 m2/g, and a diameter of 2-4 μm could be obtained. The obtained mesoporous silica materials have po-tential applications in the fields of paint and plastic, as thickening, reinforcing, and flatting agents. | Shuling Shen Wei Wu Kai Guo Jianfeng Chen | 2007 | Journal of University of Science and Technology Beijing2007，14，4： | 4 |
| 20 | Characterization of Water Quality in Xiao Xingkai Lake:Implications for Trophic Status and Management显示文摘Increasing cases of lake eutrophication globally have raised concerns among stakeholders,and particularly in China.Evaluating the causes of eutrophication in waterways is essential for effective pollution prevention and control.Xiao Xingkai Lake is part of and connected to Xingkai(Khanka)Lake,a boundary lake between China and Russia.In this study,we investigated the spatio-temporal variabilities in water quality(i.e.,dissolved oxygen(DO),total nitrogen(TN),total phosphorus(TP),chemical oxygen demand(CODMn)and ammonium-nitrogen(NH4+-N))in Xiao Xingkai Lake,from 2012 to 2014,after which a Trophic Level Index was used to evaluate trophic status,in addition to the factors influencing water quality variation in the lake.The DO,TN,TP,CODMn and NH4+-N concentrations were 0.44-15.57,0.16-5.11,0.01-0.45,0.16-48.31,and 0.19-0.78 mg/L,respectively.Compared to the Environmental Quality Standards for surface water(GB 3838-2002)in China,the lake transitioned to an oligotrophic status in 2013 and 2014 from a mesotrophic status in 2012,TN and TP concentrations were the key factors influencing water quality of Xiao Xingkai Lake.Non-para-metric test results showed that sampling time and sites had significant effects on water quality.Water quality was worse in summer and in tourism and aquaculture areas,followed by agricultural drainage areas.Furthermore,lake water trophic status fluctuated between medium eutrophic and light eutrophic status from September 2012 to September 2014,and was negatively correlated with water level.Water quality in tourism and aquaculture sites were medium eutrophic,while in agricultural areas were light eutrophic.According to the results,high water-level fluctuations and anthropogenic activities were the key factor driving variability in physicochemical parameters associated with water quality in Xiao Xingkai Lake. | YU Shuling LI Xiaoyu WEN Bolong CHEN Guoshuang HARTLEYC Anne JIANG Ming LI Xiujun | 2021 | Chinese Geographical Science2021，31，3： | 4 |
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