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On the Historical Rationality and Political Legitimacy of Mencius’ Thoughts of Benevolent Governance
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《政治思想史》 CSSCI 2018年第1期196-200,共5页
关键词 mencius bnevolent gvernance hstorical rtionality plitical lgitimacy
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Domestication and Foreignization in the Translation of Ecological Cultureloaded Terms——A Comparative Study of Two English Versions of Mencius
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作者 SU Huan 《海外英语》 2014年第5X期133-135,共3页
Mencius is composed of many long dialogues between Mencius and the kings,and some famous statements to show his viewpoints.There are many culture-loaded terms in this work which could reflect the Chinese traditional c... Mencius is composed of many long dialogues between Mencius and the kings,and some famous statements to show his viewpoints.There are many culture-loaded terms in this work which could reflect the Chinese traditional culture at that time.This thesis makes a comparative study on the application of domestication and foreignization in the translation of Ecological Culture-loaded Terms of two English versions of Mencius.And through this comparative study,this thesis would make its contribution on how to choose the appropriate translation strategy when dealing with such Culture-loaded Terms. 展开更多
关键词 mencius Chinese TRADITIONAL culture DOMESTICATION
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Domestication and Foreignization in the Translation of the Stylistic Devices——A Comparative Study of Two English Versions of Mencius
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作者 苏焕 《海外英语》 2014年第18期143-144,166,共3页
The debate between domestication and foreignization translation strategies has aroused scholars' research interest for a long time. This thesis makes a comparative study on the application of domestication and for... The debate between domestication and foreignization translation strategies has aroused scholars' research interest for a long time. This thesis makes a comparative study on the application of domestication and foreignization of the Stylistic Devices in Legge's and Zhao Zhentao's translated versions of Mencius. 展开更多
关键词 DOMESTICATION and FOREIGNIZATION the STYLISTIC dev
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Influence of filler characteristics on particle removal in fluid catalytic cracking slurry under an alternating electric field
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作者 Qiang Li Hui-Zhen Yang +3 位作者 Can Yang Qing-Zhu Qiu Wei-Wei Xu Zhao-Zeng Liu 《Petroleum Science》 SCIE EI CAS CSCD 2024年第3期2102-2111,共10页
The characteristics of the packing material under an alternating electric field are an important factor in the removal of FCCS particles.In this study,the electric field distribution of a separation unit consisting of... The characteristics of the packing material under an alternating electric field are an important factor in the removal of FCCS particles.In this study,the electric field distribution of a separation unit consisting of packed spheres under an alternating electric field is simulated,and the movement mechanism of catalyst particles is analysed.An"effective contact point"model is derived to predict the adsorption of filler contact points on catalyst particles under the alternating electric field,and the model is validated by simulations and experiments.The numerical calculation and experimental results indicate that the electrical properties of the filler spheres,the filler angleθ,and the frequency f of the alternating electric field affect the adsorption of catalyst particles.As the frequency of the electric field increases,the particle removal efficiency of the high-conductivity filler(silicon carbide)increases and then settles,and the separation efficiency of the low-conductivity filler(glass,zirconia)is not sensitive to the change in electric field frequency. 展开更多
关键词 Fluid catalyticcracking slurry(FCCS) partICLE AC electric field FILLERS REMOVAL
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Removal Effect of Precipitation on Atmospheric Particulate Matter (PM_(2.5) ) in Bengbu City
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作者 Lei TIAN Lei SHAN Jingyang CHEN 《Meteorological and Environmental Research》 2024年第1期12-15,26,共5页
Based on the monitoring data of PM_(2.5) concentration in Bengbu Environmental Monitoring Station and precipitation observation data of Bengbu National Meteorological Observation Station from 2016 to 2019, the influen... Based on the monitoring data of PM_(2.5) concentration in Bengbu Environmental Monitoring Station and precipitation observation data of Bengbu National Meteorological Observation Station from 2016 to 2019, the influence of precipitation on PM_(2.5) mass concentration in Bengbu City was analyzed. The results show that precipitation had a washing and removal effect on PM_(2.5) in the air, and the removal effect was related to precipitation level, precipitation intensity, precipitation duration and PM_(2.5) concentration. The removal effect of precipitation on PM_(2.5) increased with the increase of precipitation level, and the seasonal difference was obvious. Precipitation intensity was positively correlated with the removal effect of PM_(2.5) , but the average removal rate began to decline when precipitation intensity exceeded 10 mm. With the increase of precipitation intensity, the proportion of positive removal showed an overall upward trend, but there was a low-value area as precipitation intensity was 3-10 mm. Precipitation duration was also positively correlated with the removal effect of PM_(2.5) , and there was a low-value area when precipitation duration was 10-15 h. When PM_(2.5) concentration was low before the precipitation process began, the removal effect was not good, and the average removal rate was negative. As PM_(2.5) concentration was high before the precipitation process started, the removal effect was obvious. 展开更多
关键词 PRECIPITATION PM_(2.5) Removal efficiency Bengbu
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Observation on Therapeutic Effect of Lotus Needle Cupping Therapy for Removing Blood Stasis in Zhuang Medicine on PHN and Its Influ-ence on Inflammatory Mediators
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作者 Liping QIN Yulu WEI +4 位作者 Faming SHU Mingfu PAN Zujie QIN Da WEI Jiaojiao HUANG 《Medicinal Plant》 2024年第5期61-65,共5页
[Objectives]To observe the clinical effect of the lotus needle cupping therapy for removing blood stasis in Zhuang medicine in treating PHNand its influence on inflammatory factors.[Methods]96 patients with PHN were r... [Objectives]To observe the clinical effect of the lotus needle cupping therapy for removing blood stasis in Zhuang medicine in treating PHNand its influence on inflammatory factors.[Methods]96 patients with PHN were randomly divided into three groups:lotus nee-dle cupping therapy group,TCM surrounding acupuncture group and gabapentin group.Venous blood and acupoint blood were collected at 0,21 and 42 d of treatment,and the expression levels of 5-HT,SP and CGRPinflammatory mediators were detected before and after treatment.The changes of VAS scores before,during and after treatment and the clinical efficacy were observed.[Results]The total effective rate of the lotus needle cupping group was 87.50%,which was better than that of the TCM acupuncture group(81.25%)and the gabapentin group(62.50%);after treatment,the VAS scores and the expression of inflammatory mediators in the three groups of patients were lower than those before treatment,and the decrease was more significant in the treatment group(P<0.05).[Conclusions]The lotus needle cupping therapy for removing blood stasis in Zhuang medicine is effective in treating PHN,and its mechanism is to reduce the release of inflammatory media-tors,reduce hyperalgesia,relieve pain and improve the quality of life of patients. 展开更多
关键词 Lotus needle cupping therapy for removing blood stasis in Zhuang medicine Postherpetic neuralgia Inflammatory mediator
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Controllably partial removal of thiolate ligands from unsupported Au_(25) nanoclusters by rapid thermal treatments for electrochemical CO_(2)reduction 被引量:2
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作者 Liting Huang Yongfeng Lun +4 位作者 Yuping Liu Liming Chen Bowen Li Shuqin Song Yi Wang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2023年第11期16-22,I0002,共8页
Colloidal synthesis of metal nanoclusters will inevitably lead to the blockage of catalytically active sites by organic ligands.Here,taking[Au_(25)(PET)_(18)]-(PET=2-phenylethanethiol)nanocluster as a model catalyst,t... Colloidal synthesis of metal nanoclusters will inevitably lead to the blockage of catalytically active sites by organic ligands.Here,taking[Au_(25)(PET)_(18)]-(PET=2-phenylethanethiol)nanocluster as a model catalyst,this work reports a feasible procedure to achieve the controllably partial removal of thiolate ligands from unsupported[Au_(25)(PET)_(18)]-nanoclusters with the preservation of the core structure.This procedure shortens the processing duration by rapid heating and cooling on the basis of traditional annealing treatment,avoiding the reconfiguration or agglomeration of Au_(25)nanoclusters,where the degree of dethiolation can be regulated by the control of duration.This work finds that a moderate degree of dethiolation can expose the Au active sites while maintaining the suppression of the competing hydrogen evolution reaction.Consequently,the activity and selectivity towards CO formation in electrochemical CO_(2)reduction reaction of Au_(25)nanoclusters can be promoted.This work provides a new approach for the removal of thiolate ligands from atomically precise gold nanoclusters. 展开更多
关键词 Gold nanoclusters THIOLATES Ligand removal Electrochemically active surface area Electrochemical CO_(2)reduction
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Correction:Impact of Transition Metal Layer Vacancy on the Structure and Performance of P2 Type Layered Sodium Cathode Material 被引量:1
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作者 Orynbay Zhanadilov Sourav Baiju +7 位作者 Natalia Voronina Jun Ho Yu A-Yeon Kim Hun-Gi Jung Kyuwook Ihm Olivier Guillon Payam Kaghazchi Seung-Taek Myung 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第12期532-532,共1页
Following publication of the original article[1],the authors reported that the author Hun-Gi Jung should be affiliated as 3,4 and 5 instead of 4 and 5.The author’s name“A.-Yeon Kim”needed to be updated to“A-Yeon ... Following publication of the original article[1],the authors reported that the author Hun-Gi Jung should be affiliated as 3,4 and 5 instead of 4 and 5.The author’s name“A.-Yeon Kim”needed to be updated to“A-Yeon Kim”,removing the period.The correct author’s name and affiliation have been provided in this Correction.The original article[1]has been corrected. 展开更多
关键词 removing Transition IMPACT
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TpBD-3COOH COF的制备及对废水中罗丹明B吸附性能研究 被引量:1
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作者 那迪 刘诚 +4 位作者 李杨梅 刘壹 包茜 李文星 阮琼 《湿法冶金》 CAS 北大核心 2024年第2期172-177,共6页
研究了以三醛基间苯三酚(Tp)、4,4-二氨基联苯-2,2-二羧酸(DBd)和联苯二胺(BD)为原料,通过溶剂热法制备新型羧基官能化的二维共价有机框架材料TpBD-3COOH COF,并用于吸附罗丹明B染料废水,采用XRD、FT-IR、SEM对其形貌进行了表征。结果表... 研究了以三醛基间苯三酚(Tp)、4,4-二氨基联苯-2,2-二羧酸(DBd)和联苯二胺(BD)为原料,通过溶剂热法制备新型羧基官能化的二维共价有机框架材料TpBD-3COOH COF,并用于吸附罗丹明B染料废水,采用XRD、FT-IR、SEM对其形貌进行了表征。结果表明:在pH=4、TpBD-3COOH COF用量8 mg、废水中罗丹明B质量浓度10 mg/L条件下吸附60 min,罗丹明B去除率可达95%;5次重复试验后,TpBD-3COOH COF对罗丹明B的去除率仍可达70%以上,且吸附过程与准二级动力学模型和Langmuir等温吸附模型相吻合。 展开更多
关键词 TpBD-3COOH Cof 材料 溶剂热法 罗丹明B 吸附 废水 去除
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Green Hydrothermal Synthesis and Applications of Sorbus pohuashanensis/Aronia melanocarpa Extracts Functionalized-Au/Ag/AuAg Nanoparticles
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作者 Jin Huang Jixiang Sun +4 位作者 Kai Shao Yamei Lin Zhiguo Liu Yujie Fu Liqiang Mu 《Journal of Renewable Materials》 SCIE EI 2023年第4期1807-1821,共15页
Nanoparticles(NPs)have already been widely used in catalysis,antibacterial and coating fields.Compared with the traditional toxic and harmful reducing reagents,green synthesis of NPs by using plant extracts is not onl... Nanoparticles(NPs)have already been widely used in catalysis,antibacterial and coating fields.Compared with the traditional toxic and harmful reducing reagents,green synthesis of NPs by using plant extracts is not only environmental-friendly and cost-effective but also conducive to the multi-level and efficient utilization of wild plant resources.In this study,the aqueous extracts from Sorbus pohuashanensis(SP)and Aronia melanocarpa(AM)fruits were used as the reducing and protective reagents for synthesizing Au/AgNPs,with the characteristics of originality operation and high repeatability.The SP/AM fruit extracts functionalized Au/AgNPs were characterized by UV-vis spectroscopy(UV-vis),transmission electron microscopy(TEM),energy dispersive spectroscopy(EDS),scanning electron microscope(SEM),X-ray diffraction(XRD)and Fourier transform infrared spectroscopy(FTIR).UV-vis spectrums showed the NPs peaks verified by the presence between 400–550 nm;TEM and SEM demonstrated NPs displayed approximately spherical structures;EDS confirmed the existence of Au/Ag elements;XRD measurements confirmed that the obtained NPs showed highly crystalline structures;FTIR demonstrated the fruits extracts were adsorbed on the surface of NPs.Primary experiments indicated that SP/AM fruit extracts functionalized-NPs could be used as the reagents for removing the organic dyes efficiently;Zone of inhibition tests(ZOI)explained that NPs have slow-release antibacterial activity. 展开更多
关键词 Green synthesis NANOpartICLES Sorbus pohuashanensis Aronia melanocarpa plant extracts dye removal
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Long-term outcomes after endoscopic removal of malignant colorectal polyps:Results from a 10-year cohort 被引量:1
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作者 Anna Fábián Renáta Bor +13 位作者 Béla Vasas Mónika Szűcs Tibor Tóth Zsófia Bősze Kata Judit Szántó Péter Bacsur Anita Bálint Bernadett Farkas Klaudia Farkas Ágnes Milassin Mariann Rutka Tamás Resál Tamás Molnár Zoltán Szepes 《World Journal of Gastrointestinal Endoscopy》 2024年第4期193-205,共13页
BACKGROUND Choosing an optimal post-polypectomy management strategy of malignant colorectal polyps is challenging,and evidence regarding a surveillance-only strategy is limited.AIM To evaluate long-term outcomes after... BACKGROUND Choosing an optimal post-polypectomy management strategy of malignant colorectal polyps is challenging,and evidence regarding a surveillance-only strategy is limited.AIM To evaluate long-term outcomes after endoscopic removal of malignant colorectal polyps.METHODS A single-center retrospective cohort study was conducted to evaluate outcomes after endoscopic removal of malignant colorectal polyps between 2010 and 2020.Residual disease rate and nodal metastases after secondary surgery and local and distant recurrence rate for those with at least 1 year of follow-up were invest-igated.Event rates for categorical variables and means for continuous variables with 95%confidence intervals were calculated,and Fisher’s exact test and Mann-Whitney test were performed.Potential risk factors of adverse outcomes were RESULTS In total,135 lesions(mean size:22.1 mm;location:42%rectal)from 129 patients(mean age:67.7 years;56%male)were enrolled.The proportion of pedunculated and non-pedunculated lesions was similar,with en bloc resection in 82%and 47%of lesions,respectively.Tumor differentiation,distance from resection margins,depth of submucosal invasion,lymphovascular invasion,and budding were reported at 89.6%,45.2%,58.5%,31.9%,and 25.2%,respectively.Residual tumor was found in 10 patients,and nodal metastasis was found in 4 of 41 patients who underwent secondary surgical resection.Univariate analysis identified piecemeal resection as a risk factor for residual malignancy(odds ratio:1.74;P=0.042).At least 1 year of follow-up was available for 117 lesions from 111 patients(mean follow-up period:5.59 years).Overall,54%,30%,30%,11%,and 16%of patients presented at the 1-year,3-year,5-year,7-year,and 9-10-year surveillance examinations.Adverse outcomes occurred in 9.0%(local recurrence and dissemination in 4 patients and 9 patients,respectively),with no difference between patients undergoing secondary surgery and surveillance only.CONCLUSION Reporting of histological features and adherence to surveillance colonoscopy needs improvement.Long-term adverse outcome rates might be higher than previously reported,irrespective of whether secondary surgery was performed. 展开更多
关键词 Malignant colorectal polyps T1 tumor Endoscopic removal OUTCOMES Long-term SURVEILLANCE
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Role of lysosomal trafficking regulator in autophagic lysosome reformation in neurons:a disease perspective
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作者 Prashant Sharma Jenny Serra-Vinardell +1 位作者 Wendy J.Introne May Christine V.Malicdan 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第5期957-958,共2页
Lysosomes are discrete organelles that act as recycling centers for extracellular and intracellular materials,playing a pivotal role in maintaining cellular homeostasis.Their acidic environment,maintained by numerous ... Lysosomes are discrete organelles that act as recycling centers for extracellular and intracellular materials,playing a pivotal role in maintaining cellular homeostasis.Their acidic environment,maintained by numerous hydrolytic enzymes,facilitates substrate degradation.Dysfunction in lysosomal processes can lead to abnormal substrate degradation,significantly impacting cellular homeostasis.High energy-demanding cells,such as post-mitotic neurons,are especially vulnerable to these changes,often resulting in neurological diseases.Autophagy,a conserved catabolic process,requires extensive lysosomal utilization.It plays a key role in removing unnecessary intracellular components,ensuring cellular homeostasis,and promoting cell survival during stress conditions such as starvation,infection,or cellular damage. 展开更多
关键词 HOMEOSTASIS LYSOSOMAL removing
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Defective Nickel-Iron Layered Double Hydroxide for Enhanced Photocatalytic NO Oxidation with Significant Alleviation of NO2 Production
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作者 Xiaoyu Li Xiaoshu Lv +6 位作者 Jian Pan Peng Chen Huihui Peng Yan Jiang Haifeng Gong Guangming Jiang Li’an Hou 《Engineering》 SCIE EI CAS CSCD 2024年第5期276-284,共9页
Photocatalysis offers a sustainable means for the oxidative removal of low concentrations of NOx(NO,NO2,N2O,N2O5,etc.)from the atmosphere.Layered double hydroxides(LDHs)are promising candidate photocatalysts owing to ... Photocatalysis offers a sustainable means for the oxidative removal of low concentrations of NOx(NO,NO2,N2O,N2O5,etc.)from the atmosphere.Layered double hydroxides(LDHs)are promising candidate photocatalysts owing to their unique layered and tunable chemical structures and abundant surface hydroxide(OH)moieties,which are hydroxyl radical(OH)precursors.However,the practical applications of LDHs are limited by their poor charge-separation ability and insufficient active sites.Herein,we developed a facile N_(2)H_(4)-driven etching approach to introduce dual Ni^(2+)and OHvacancies(Niv and OHv,respectively)into NiFe-LDH nanosheets(hereafter referred to as NiFe-LDH-et)to facilitate improved charge-carrier separation and active Lewis acidic site(Fe^(3+)and Ni^(2+)exposed at OHv)formation.In contrast to inert pristine LDH,NiFe-LDH-et actively removed NO under visible-light illumination.Specifically,Ni_(76)Fe_(24)-LDH-et etched with 1.50 mmol·L^(-1)N_(2)H_(4)solution removed 32.8%of the NO in continuously flowing air(NO feed concentration:500 parts per billion(ppb))under visible-light illumination,thereby outperforming most reported catalysts.Experimental and theoretical data revealed that the dual vacancies promoted the production of reactive oxygen species(O_(2)·^(-)andOH)and the adsorption of NO on the LDH.In situ spectroscopy demonstrated that NO was preferentially adsorbed at Lewis acidic sites,particularly exposed Fe^(3+)sites,converted into NO+,and subsequently oxidized to NO3without the notable formation of the more toxic intermediate NO2,thereby alleviating risks associated with its production and emission. 展开更多
关键词 Vacancie Layered double hydroxide NO+ PHOTOCATALYSIS NO removal
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Filtration performance and modeling of granular bed for dust removal from coal pyrolytic vapors
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作者 Shuaiqiang Yang Lin Du +3 位作者 Guangchao Ding Runguo Liu Wenli Song Songgeng Li 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2024年第1期35-42,共8页
Dust removal from pyrolytic vapors at high temperatures is an obstacle to the industrialization of the coal pyrolysis process.In this work,a granular bed with expanded perlites as filtration media was designed and int... Dust removal from pyrolytic vapors at high temperatures is an obstacle to the industrialization of the coal pyrolysis process.In this work,a granular bed with expanded perlites as filtration media was designed and integrated into a 10 t·d^(–1)coal pyrolysis facility.The testing results showed that around 97.56%dust collection efficiency was achieved.As a result,dust content in tar was significantly lowered.The pressure drop of the granular bed maintained in the range of 356 Pa to 489 Pa.The dust size in the effluent after filtration exhibited a bimodal distribution,which was attributed to the heterogeneity of the dust components.The effects of filtration bed on pyrolytic product yields were also discussed.A modified filtration model based on the macroscopic phenomenological theory was proposed to describe the performance of the granular bed.The computation results were well agreed with the experimental data. 展开更多
关键词 Granular bed filtration Dust removal PYROLYSIS FILTRATION FIXED-BED
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Efficient removal of U(VI) from wastewater by a sponge-like 3D porous architecture with hybrid electrospun nanofibers
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作者 Lin Hu Lin Chen +4 位作者 Xian-kun Wu Rui Luo Rong-guan Lv Zheng-hao Fei Feng Yang 《Water Science and Engineering》 EI CAS CSCD 2024年第2期150-156,共7页
Removal of uranium(VI)from nuclear wastewater is urgent due to the global nuclear energy exploitation.This study synthesized novel sponge-like 3D porous materials for enhanced uranium adsorption by combining electrosp... Removal of uranium(VI)from nuclear wastewater is urgent due to the global nuclear energy exploitation.This study synthesized novel sponge-like 3D porous materials for enhanced uranium adsorption by combining electrospinning and fibrous freeze-shaping techniques.The materials possessed an organic-inorganic hybrid architecture based on the electrospun fibers of polyacrylonitrile(PAN)and SiO_(2).As a sup-porting material,the surface of fibrous SiO_(2) could be further functionalized by cyano groups via(3-cyanopropyl)triethoxysilane.All the cyano groups were turned into amidoxime(AO)groups to obtain a amidoxime-functionalized sponge(PAO/SiO_(2)-AO)through the subsequent ami-doximation process.The proposed sponge exhibited enhanced uranium adsorption performance with a high removal capacity of 367.12 mg/g,a large adsorption coefficient of 4.0×10^(4)mL/g,and a high removal efficiency of 97.59%.The UO_(2)^(2+)adsorption kinetics perfectly conformed to the pseudo-second-order reaction.The sorbent also exhibited an excellent selectivity for UO_(2)^(2+) with other interfering metal ions.2023 Hohai University.Production and hosting by Elsevier B.V. 展开更多
关键词 Uranium removal SPONGE Amidoximation Organic-inorganic hybrid structure ELECTROSPINNING
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三维Al-TCPP MOF纳米片对16种三唑类杀菌剂的吸附去除研究
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作者 葛梦圆 刘真真 +4 位作者 狄伟轩 王娇 王新全 丁伟 齐沛沛 《农药学学报》 CAS CSCD 北大核心 2024年第2期380-389,共10页
农业生产中大量使用的三唑类杀菌剂最终通过环境介质传递进入水体,给生态系统和人类健康造成威胁。因此,本研究以六水合氯化铝和四(4-羧基苯基)卟啉(tetra(4-carboxyphenyl)porphyrin,TCPP)为功能单体制备三维Al-TCPP金属有机框架(metal... 农业生产中大量使用的三唑类杀菌剂最终通过环境介质传递进入水体,给生态系统和人类健康造成威胁。因此,本研究以六水合氯化铝和四(4-羧基苯基)卟啉(tetra(4-carboxyphenyl)porphyrin,TCPP)为功能单体制备三维Al-TCPP金属有机框架(metal organic framework,MOF)纳米片,并以Al-TCPP纳米片为吸附剂,构建了水体中16种三唑类杀菌剂的高效吸附去除方法。探究了Al-TCPP纳米片用量、吸附时间和pH值等对其吸附三唑类杀菌剂吸附能力的影响,并获得最佳吸附去除条件;选取3种典型杀菌剂,研究了Al-TCPP纳米片对目标物的吸附动力学、吸附等温线和吸附热力学等吸附行为机制。结果表明:Al-TCPP纳米片对三唑类杀菌剂的吸附过程符合准二级动力学模型,为单分子层化学吸附,且吸附过程是自发的放热反应,低温有利于该反应进行。采用本方法吸附不同环境水体中的三唑类杀菌剂,结果表明:Al-TCPP纳米片对不同环境水体中的16种三唑类杀菌剂的去除率均达到85%以上。综上所述,Al-TCPP纳米片对三唑类杀菌剂的吸附去除具有较好的实用性,可为环境水体中三唑类杀菌剂残留去除研究提供新的思路和方法。 展开更多
关键词 Al-TCPP Mof纳米片 三唑类杀菌剂 吸附去除 环境水体
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Damage evolution and removal behaviors of GaN crystals involved in double-grits grinding
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作者 Chen Li Yuxiu Hu +4 位作者 Zongze Wei Chongjun Wu Yunfeng Peng Feihu Zhang Yanquan Geng 《International Journal of Extreme Manufacturing》 SCIE EI CAS CSCD 2024年第2期469-484,共16页
Elucidating the complex interactions between the work material and abrasives during grinding of gallium nitride(GaN)single crystals is an active and challenging research area.In this study,molecular dynamics simulatio... Elucidating the complex interactions between the work material and abrasives during grinding of gallium nitride(GaN)single crystals is an active and challenging research area.In this study,molecular dynamics simulations were performed on double-grits interacted grinding of GaN crystals;and the grinding force,coefficient of friction,stress distribution,plastic damage behaviors,and abrasive damage were systematically investigated.The results demonstrated that the interacted distance in both radial and transverse directions achieved better grinding quality than that in only one direction.The grinding force,grinding induced stress,subsurface damage depth,and abrasive wear increase as the transverse interacted distance increases.However,there was no clear correlation between the interaction distance and the number of atoms in the phase transition and dislocation length.Appropriate interacted distances between abrasives can decrease grinding force,coefficient of friction,grinding induced stress,subsurface damage depth,and abrasive wear during the grinding process.The results of grinding tests combined with cross-sectional transmission electron micrographs validated the simulated damage results,i.e.amorphous atoms,high-pressure phase transition,dislocations,stacking faults,and lattice distortions.The results of this study will deepen our understanding of damage accumulation and material removal resulting from coupling between abrasives during grinding and can be used to develop a feasible approach to the wheel design of ordered abrasives. 展开更多
关键词 GRINDING double-grits molecular dynamics damage material removal gallium nitride
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Influence of network structure on spreading dynamics via tie range
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作者 李敏 宋玉蓉 +3 位作者 宋波 李汝琦 蒋国平 张晖 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第8期606-613,共8页
There are various phenomena of malicious information spreading in the real society, which cause many negative impacts on the society. In order to better control the spreading, it is crucial to reveal the influence of ... There are various phenomena of malicious information spreading in the real society, which cause many negative impacts on the society. In order to better control the spreading, it is crucial to reveal the influence of network structure on network spreading. Motifs, as fundamental structures within a network, play a significant role in spreading. Therefore, it is of interest to investigate the influence of the structural characteristics of basic network motifs on spreading dynamics.Considering the edges of the basic network motifs in an undirected network correspond to different tie ranges, two edge removal strategies are proposed, short ties priority removal strategy and long ties priority removal strategy. The tie range represents the second shortest path length between two connected nodes. The study focuses on analyzing how the proposed strategies impact network spreading and network structure, as well as examining the influence of network structure on network spreading. Our findings indicate that the long ties priority removal strategy is most effective in controlling network spreading, especially in terms of spread range and spread velocity. In terms of network structure, the clustering coefficient and the diameter of network also have an effect on the network spreading, and the triangular structure as an important motif structure effectively inhibits the spreading. 展开更多
关键词 network spreading network motifs tie range edge removal strategy
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In-situ construction of abundant active centers on hierarchically porous carbon electrode toward high-performance phosphate electrosorption: Synergistic effect of electric field and capture sites
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作者 Peng Zhang Fukuan Li +6 位作者 Mingming He Silu Huo Xueli Zhang Benqiang Cen Dezhi Fang Kexun Li Hao Wang 《Green Energy & Environment》 SCIE EI CAS CSCD 2024年第1期126-137,共12页
Phosphate removal is crucial for eutrophication control and water quality improvement.Electro-assisted adsorption,an eco-friendly elec-trosorption process,exhibited a promising potential for wastewater treatment.Howev... Phosphate removal is crucial for eutrophication control and water quality improvement.Electro-assisted adsorption,an eco-friendly elec-trosorption process,exhibited a promising potential for wastewater treatment.However,there are few works focused on phosphate electro-sorption,and reported electrodes cannot attach satisfactory removal capacities and rates.Herein,electro-assisted adsorption of phosphate via in-situ construction of La active centers on hierarchically porous carbon(LaPC)has been originally demonstrated.The resulted LaPC composite not only possessed a hierarchically porous structure with uniformly dispersed La active sites,but also provided good conductivity for interfacial electron transfer.The LaPC electrode achieved an ultrahigh phosphate electrosorption capability of 462.01 mg g^(-1) at 1 V,outperforming most existing electrodes.The superior phosphate removal performance originates from abundant active centers formed by the coupling of electricfield and capture sites.Besides,the stability and selectivity toward phosphate capture were maintained well even under comprehensive conditions.Moreover,a series of kinetics and isotherms models were employed to validate the electrosorption process.This work demonstrates a deep understanding and promotes a new level of phosphate electrosorption. 展开更多
关键词 Electro-assisted adsorption ELECTROSORPTION Phosphate removal Active centers Mof-derived carbon
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Field-assisted machining of difficult-to-machine materials
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作者 Jianguo Zhang Zhengding Zheng +5 位作者 Kai Huang Chuangting Lin Weiqi Huang Xiao Chen Junfeng Xiao Jianfeng Xu 《International Journal of Extreme Manufacturing》 SCIE EI CAS CSCD 2024年第3期39-89,共51页
Difficult-to-machine materials (DMMs) are extensively applied in critical fields such as aviation,semiconductor,biomedicine,and other key fields due to their excellent material properties.However,traditional machining... Difficult-to-machine materials (DMMs) are extensively applied in critical fields such as aviation,semiconductor,biomedicine,and other key fields due to their excellent material properties.However,traditional machining technologies often struggle to achieve ultra-precision with DMMs resulting from poor surface quality and low processing efficiency.In recent years,field-assisted machining (FAM) technology has emerged as a new generation of machining technology based on innovative principles such as laser heating,tool vibration,magnetic magnetization,and plasma modification,providing a new solution for improving the machinability of DMMs.This technology not only addresses these limitations of traditional machining methods,but also has become a hot topic of research in the domain of ultra-precision machining of DMMs.Many new methods and principles have been introduced and investigated one after another,yet few studies have presented a comprehensive analysis and summarization.To fill this gap and understand the development trend of FAM,this study provides an important overview of FAM,covering different assisted machining methods,application effects,mechanism analysis,and equipment design.The current deficiencies and future challenges of FAM are summarized to lay the foundation for the further development of multi-field hybrid assisted and intelligent FAM technologies. 展开更多
关键词 field-assisted machining difficult-to-machine materials materials removal mechanism surface integrity
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