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Purification and utilization of garlic processing wastewater in lotus pond wetlands

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Water Science and Engineering 2014年第4期7卷 395-402页

作者： jun pang Xue-ling FENG Xiu-feng WANG College of Arts Taishan University Linyi Research Institute of Environmental Protection College of Horticultural Science and Engineering Shandong Agricultural University

Based on the experiments of utilization of garlic processing wastewater in a lotus pond, this study demonstrates that lotus pond wetlands have a remarkable ability to remove organic pollutants and decrease chemical oxygen demand （CODCr）, biochemical oxygen demand （BOD5）, and suspended substances （SS） in garlic processing wastewater. Results also show evident effects of lotus roots on absorption of NH3-N. The pH value in a lotus pond with wastewater discharged was relatively stable. The water quality in the lotus pond reached the class Ⅱ emission standard, according to the Integrated Wastewater Discharge Standard （GB8978-1996）, seven days after pretreated garlic processing wastewater had been discharged into the lotus pond. Garlic processing wastewater irrigation does not produce pollution in the pond sediment and has no negative effect on the growth of lotus roots. Due to utilization of garlic processing wastewater, the output of lotus roots increased by 3.0% to 8.3%, and the quality of lotus roots was improved. Therefore, better purification and utilization results can be achieved.

关键词： lotus pond wetland garlic processing wastewater ecological treatment removalrate purification and utilization

Preparation and Properties of Magnesium Oxysulfide Cement Based Foam Board Absorbing Material

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Journal of Wuhan University of Technology(Materials Science) 2024年第1期39卷 118-125页

作者：刘军崔宝栋庞博 School of Materials Science and Engineering Shenyang Ligong UniversityShenyang 110159China

In order to better solve the problem of electromagnetic pollution in the civil building cement,to improve the absorption capacity of magnesium oxysulfide cement based materials,and to better use sulfur oxide magnesium cement foamed sheet for improvement of electromagnetic industry,this paper uses the excellent microwave absorbing properties of ferrite and the modified sulfur oxide magnesium cement foam board,and discusses the microwave absorbing performance,aiming at improving the electromagnetic pollution in daily *** effects of ferrite and silicon carbide doping on microwave absorption properties of modified magnesium oxysulfate cement were *** the same time,the wave absorbing properties of the corresponding samples were detected by bow method,and the causes of the corresponding phenomena were analyzed by scanning electron microscopy (SEM).The results show that the lowest reflectance of the material is-17.9 dB at 34.1 GHz and the average reflectance of the whole band is-15.9 dB under the target frequency band of 26.5-40 *** the action of external magnetic field,the absorbing particles are affected by magnetization force,magnetic dipole and resistance coupling,and play the absorbing effect in the cement base solidified completely in the electromagnetic field *** lowest reflectance is-17.3dB at 36.4GHz and the average reflectance is-14.3dB for the whole band.

关键词： magnesium oxysulfide cement silicon carbide ferrite absorption properties

Ultrathin curved PdNiRu nanosheets as bifunctional catalysts for oxygen reduction and ethylene glycol oxidation

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Nano Research 2024年第5期17卷 3777-3784页

作者： Xianzeng Li Tingyu Lu Huan pang Mingyi Zhang Dongdong Xu Lin Xu Min Han jun Yang Jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Center of Biomedical Functional MaterialsSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023China Fujian Cross Strait Institute of Flexible Electronics(Future Technology) Fujian Normal UniversityFuzhou 350117China State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China State Key Laboratory of Coordination Chemistry Nanjing UniversityNanjing 210023China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225009China Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of EducationSchool of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025China

Pd-based metallic nanosheets with advanced physicochemical properties have been widely prepared and employed in various electrocatalytic ***,few concerns were focused on their multiple performances in different ***,highly curved and ultrathin PdNiRu nanosheets(NSs)are developed by facile wet-chemistry strategy and exhibit excellent electrocatalytic performance toward both oxygen reduction reaction(ORR)and ethylene glycol oxidation reaction(EGOR).Owing to the synergistically structural(e.g.,ultrathin,curved,defects/steps-rich)and compositional(ternary alloy)advantages,PdNiRu NSs exhibited enhanced ORR and EGOR specific/mass activities and better stability/durability than control *** specific activity(5.52 mA·cm^(−2))and mass activity(1.13 A·mg_(Pd)^(−1))of the PdNiRu NSs in ORR are 4.8 and 3.4 times as the ones of commercial Pt/C,*** mass activity of PdNiRu NSs(3.86 A·mg_(Pd)^(−1))in EGOR is 2.6 times as commercial Pd/C(1.51 A·mg_(Pd)^(−1)).This study is helpful for the development of desired electrocatalysts with multi-functional application in practical fuel cells.

关键词： ultrathin nanosheets noble metal electrocatalysts bifunctional

PROGRESS IN STUDIES ON ICE ACCUMULATION IN RIVER BENDS

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Journal of Hydrodynamics 2011年第6期23卷 737-744页

作者： WANG jun CHEN pang-pang SUI Jue-yi School of Civil Engineering Hefei University of Technology Heifei 230029 China Environmental Engineering Program University of Northern British Columbia Prince George British ColumbiaCanada V2N 4V9

River ice is an important hydraulic element in temperate and polar environments and would affect hydrodynamic conditions of rivers through changes both in the boundary conditions and the thermal regime. The river bend has been reported as the common location for the initiation of ice jams because the water flow along a river bend is markedly affected by the channel curvature. In this article, the experimental studies about the ice accumulation in a river bend are reviewed. Based on experiments conducted so far, the criteria for the formation of ice jams in the river bend, the mechanisms of the ice accumulation in the river bend and the thickness profile of the ice accumulation in the river bend are discussed. The two-equation turbulence model is used to simulate the ice accumulation under an ice cover along a river bend. A formula is proposed for describing the deformation of the ice jam bottom. Our results indicate that all simulated thickness of the ice accumulation agrees reasonably well with the measured thickness of the ice accumulation in the laboratory.

关键词： experiment ice jam/accumulation bend channel thickness profile

壮医经筋推拿对神经病理性疼痛大鼠去泛素化酶BRCC3介导NLRP3去泛素化修饰的影响及镇痛机制

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现代中西医结合杂志 2024年第1期33卷 17-21,27页

作者：王天翊唐宏亮梁英业庞军卢栋明唐业妮郑玉娇何育风广西中医药大学广西南宁530000 防城港市中医医院广西防城港538000 广西中医药大学第一附属医院广西南宁530000

目的探讨壮医经筋推拿对神经病理性疼痛大鼠去泛素化酶BRCC3介导NOD样受体家族热蛋白结构域相关蛋白3(NLRP3)去泛素化修饰的影响及其镇痛分子学机制。方法将45只雌性SD大鼠随机分为5组,每组9只。模型组、假手术组、壮医经筋推拿组采... 详细信息

目的探讨壮医经筋推拿对神经病理性疼痛大鼠去泛素化酶BRCC3介导NOD样受体家族热蛋白结构域相关蛋白3(NLRP3)去泛素化修饰的影响及其镇痛分子学机制。方法将45只雌性SD大鼠随机分为5组,每组9只。模型组、假手术组、壮医经筋推拿组采用L5脊神经结扎的方法建立神经病理性疼痛模型。于术后第1天开始,假推拿组对大鼠双侧后肢进行轻轻抚摸,壮医经筋推拿组采用按摩推拿手法模拟仪刺激大鼠脊神经结扎节段相应体表部位及所结扎神经支配区域并进行推拿,连续干预14 d;其余3组不予干预,观察14 d。于术前及术后1 d、3 d、14 d测定各组大鼠机械性痛觉阈值和热痛觉阈值;术后14 d,采用qPCR技术检测脊髓背角中BRCC3和NLRP3 mRNA表达情况,采用ELISA法检测血清白细胞介素-1β(IL-1β)水平。结果术后1 d、3 d,各手术组大鼠的机械性痛觉阈值和热痛觉阈值均明显低于正常组(P均<0.05);术后14 d,壮医经筋推拿组大鼠的机械性痛觉阈值和热痛觉阈值均明显高于模型组和假推拿组(P均<0.05)。术后14 d,模型组和假推拿组大鼠脊髓背角中BRCC3、NLRP3mRNA相对表达量及血清IL-1β水平均明显高于正常组(P均<0.05),壮医经筋推拿组大鼠脊髓背角中BRCC3、NLRP3mRNA相对表达量及血清IL-1β水平均明显低于模型组和假推拿组(P均<0.05)。结论壮医经筋推拿可减轻神经病理性疼痛大鼠痛敏反应,其机制与下调脊髓背角中去泛素化酶BRCC3表达,以抑制NLRP3的去泛素化修饰,从而阻止NLRP3的活化,阻碍IL-1β成熟和分泌,阻断其介导的免疫炎症反应有关。

关键词：壮医经筋推拿神经病理性疼痛泛素化白细胞介素-1β NLRP3

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具有POLE致病性突变子宫内膜癌的临床病理及分子特征分析

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诊断病理学杂志 2024年第4期31卷 282-286,322页

作者：蔡宇梦周杨汪昊庞钧译吴焕文师晓华梁智勇中国医学科学院北京协和医学院北京协和医院病理科北京100730

目的探讨具有POLE致病性突变子宫内膜癌(EC)的临床病理及分子特征。方法选取179例EC患者,根据POLE基因突变、错配修复(MMR)蛋白表达及p53表达/TP53突变进行分子分型,分析POLE mut型EC的临床病理及分子特征。结果POLE mut20例,MMRd 48例,... 详细信息

目的探讨具有POLE致病性突变子宫内膜癌(EC)的临床病理及分子特征。方法选取179例EC患者,根据POLE基因突变、错配修复(MMR)蛋白表达及p53表达/TP53突变进行分子分型,分析POLE mut型EC的临床病理及分子特征。结果POLE mut20例,MMRd 48例,NSMP 90例,p53 abn 21例。POLE mut EC多为FIGOⅠ期(17/20),中-低分化子宫内膜样癌(EEC)(13/20)、局限于内膜/浅肌层(17/20)、肿瘤浸润性淋巴细胞(TILs)显著(17/20)、无/局灶(LVSI)(18/20)、无淋巴结转移(19/20)。4个亚组间临床病理特征的差异均有统计学意义(P<0.05)。POLE mut型预后最好,具有多重分类特征的病例预后更接近POLE mut型。结论POLE mut EC提示着较高的组织学分级,较早的临床分期及较好的预后;POLE mut可继发dMMR/MSI-H表型及p53/TP53异常,应归类为POLE mut型。

关键词：子宫内膜癌分子分型 POLE 错配修复缺陷 TP53

全国碳市场引入CCER交易及抵销机制的经济影响研究

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气候变化研究进展 2022年第5期18卷 622-636页

作者：张宁庞军中国人民大学环境学院北京100872

基于中国风电及光伏国家核证自愿减排量(CCER)现状及发展趋势,针对CCER供给、抵销和价格形成等关键机制问题,运用电力部门细分的递推动态可计算一般均衡(CGE)模型,模拟了在取消电价补贴的背景下全国碳市场引入风电及光伏CCER交易及抵销... 详细信息

基于中国风电及光伏国家核证自愿减排量(CCER)现状及发展趋势,针对CCER供给、抵销和价格形成等关键机制问题,运用电力部门细分的递推动态可计算一般均衡(CGE)模型,模拟了在取消电价补贴的背景下全国碳市场引入风电及光伏CCER交易及抵销机制的经济影响。研究发现:引入CCER交易及抵销机制会降低碳配额交易价格,并缓解取消电价补贴对风电和光伏电力的负面影响,但也会削弱全国碳市场的碳减排效果,且随着CCER供给总量增加这些作用更明显;全国碳市场引入CCER交易及抵销机制后,碳排放强度较高的控排行业将选择购买更多的CCER,其中火电行业是主要的CCER需求方;未来我国如果不放开CCER项目备案审批则风电行业将是主要受益方,而未来适度放开CCER项目备案审批则风电和光伏行业都将从中受益。因此,全国碳市场在引入CCER交易及抵销机制的同时需从紧设置初始碳配额发放量,并可考虑适时重启CCER项目备案审批工作以更好地促进风电和光伏电力的发展,但允许的CCER清缴比例上限应结合碳减排目标合理设定,以避免对全国碳市场产生较大冲击。

关键词：全国碳市场国家核证自愿减排量(CCER) 风电光伏可计算一般均衡(CGE)模型经济影响

Preoperatively predicting vessels encapsulating tumor clusters in hepatocellular carcinoma:Machine learning model based on contrast-enhanced computed tomography

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 857-874页

作者： Chao Zhang Hai Zhong Fang Zhao Zhen-Yu Ma Zheng-jun Dai Guo-Dong pang Department of Radiology The Second Hospital of Shandong UniversityJinan 250033Shandong ProvinceChina Department of Radiology Qilu Hospital of Shandong UniversityJinan 250014Shandong ProvinceChina Department of Radiology Linglong Yingcheng HospitalYantai 265499Shandong ProvinceChina Department of Scientific Research Huiying Medical Technology Co.LtdBeijing 100192China

BACKGROUND Recently,vessels encapsulating tumor clusters(VETC)was considered as a distinct pattern of tumor vascularization which can primarily facilitate the entry of the whole tumor cluster into the bloodstream in an invasion independent manner,and was regarded as an independent risk factor for poor prognosis in hepatocellular carcinoma(HCC).AIM To develop and validate a preoperative nomogram using contrast-enhanced computed tomography(CECT)to predict the presence of VETC+in *** We retrospectively evaluated 190 patients with pathologically confirmed HCC who underwent CECT scanning and immunochemical staining for cluster of differentiation 34 at two medical *** analysis was conducted on intratumoral and peritumoral regions in the portal vein *** features,essential for identifying VETC+HCC,were extracted and utilized to develop a radiomics model using machine learning algorithms in the training *** model’s performance was validated on two separate test *** operating characteristic(ROC)analysis was employed to compare the identified performance of three models in predicting the VETC status of HCC on both training and test *** most predictive model was then used to constructed a radiomics nomogram that integrated the independent clinical-radiological *** and decision curve analysis were used to assess the performance characteristics of the clinical-radiological features,the radiomics features and the radiomics *** The study included 190 individuals from two independent centers,with the majority being male(81%)and a median age of 57 years(interquartile range:51-66).The area under the curve(AUC)for the combined radiomics features selected from the intratumoral and peritumoral areas were 0.825,0.788,and 0.680 in the training set and the two test sets.A total of 13 features were selected to construct the *** nomogram,combining clinicalradiological and combined radiomics features could acc

关键词： Hepatocellular carcinoma Vessels encapsulating tumor clusters Intratumoral and peritumoral regions Radiomics features Nomog

980 nm Near-Infrared Light-Emitting Diode Using All-Inorganic Perovskite Nanocrystals Doped with Ytterbium Ions

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Tsinghua Science and Technology 2024年第1期29卷 207-215页

作者： Zhenglan Ye Taoran Liu Dan Chen Yazhou Yang Jiayi Li Yaqing pang Xiangquan Liu Yuhua Zuo jun Zheng Zhi Liu Buwen Cheng State Key Laboratory on Integrated Optoelectronics Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Intelligent Network Research Institute Zhejiang LabHangzhou 311100China

All-inorganic perovskite(CsPbX3)nanocrystals(NCs)have recently been widely investigated as versatile solution-processable light-emitting *** to its wide-bandgap nature,the all-inorganic perovskite NC Light-Emitting Diode(LED)is limited to the visible region(400-700 nm).A particularly difficult challenge lies in the practical application of perovskite NCs in the infrared-spectrum *** this work,a 980 nm NIR all-inorganic perovskite NC LED is demonstrated,which is based on an efficient energy transfer from wide-bandgap materials(CsPbCl3 NCs)to ytterbium ions(Yb3+)as an NIR emitter doped in perovskite *** optimized CsPbCl3 NC with 15 mol%Yb3+doping concentration has the strongest 980 nm photoluminescence(PL)peak,with a PL quantum yield of 63%.An inverted perovskite NC LED is fabricated with the structure of ITO/PEDOT:PSS/poly-TPD/CsPbCl3:15 mol%Yb3+NCs/TPBi/LiF/*** LED has an External Quantum Efficiency(EQE)of 0.2%,a Full Width at Half Maximum(FWHM)of 47 nm,and a maximum luminescence of 182 cd/m?.The introduction of Yb3+doping in perovskite NCs makes it possible to expand its working wavelength to near-infrared band for next-generation light sources and shows potential applications for optoelectronic integration.

关键词： perovskite nanocrystals rare-earth doping Light-Emitting Diode(LED) near-infrared optical interconnection