|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Formation and evolution of layered structure in dissimilar welded joints between ferritic-martensitic steel and 316L stainless steel with fillers显示文摘Dissimilar high-energy beam(HEB)welding is necessary in many industrial applications.Different composition of heat-affected zone(HAZ)and weld metal(WM)lead to variation in mechanical properties within the dissimilar joint,which determines the performance of the welded structure.In the present study,appropriate filler material was used during electron beam welding(EBW)to obtain a reliable dissimilar joint between reduced-activation ferritic-martensitic(RAFM)steel and 316L austenitic stainless steel.It was observed that the layered structure occurred in the weld metal with 310S filler(310S-WM),which had the inferior resistance to thermal disturbance,leading to severe hardening of 310S-WM after one-step tempering treatment.To further ameliorate the joint inhomogeneity,two-step heat treatment processes were imposed to the joints and optimized.δ-ferrite in the layered structure transformed intoγ-phase in the first-step normalizing and remained stable during cooling.In the second-step of tempering,tempered martensite was obtained in the HAZ of the RAFM steel,while the microstructure of 310S-WM was not affected.Thus,the optimized properties for HAZ and 310S-WM in dissimilar welded joint was both obtained by a two-step heat treatment.The creep failure position of two dissimilar joints both occurred in CLAM-BM. | Guoliang Liu Shanwu Yang Jianwen Ding Wentuo Han Lujun Zhou Mengqi Zhang Shanshan Zhou RDKMisra Farong Wan Chengjia Shang | 2019 | Journal of Materials Science & Technology2019，35，11： | 4 |
| 2 | The performance and mechanism of iron-mediated chemical oxidation:Advances in hydrogen peroxide,persulfate and percarbonate oxidation显示文摘Many studies have successfully built iron-mediatedmaterials to activate or catalyze Fentonlike reactions,with applications in water and wastewater treatment being investigated.However,the developed materials are rarely compared with each other regarding their performance of organic contaminant removal.In this review,the recent advances of Fentonlike processes in homogeneous and heterogeneous ways are summarized,especially the performance and mechanism of activators including ferrous iron,zero valent iron,iron oxides,iron-loaded carbon,zeolite,and metal organic framework materials.Also,this work mainly compares three O-O bond containing oxidants including hydrogen dioxide,persulfate,and percarbonate,which are environmental-friendly oxidants and feasible for in-situ chemical oxidation.The influence of reaction conditions,catalyst properties and benefits are analyzed and compared.In addition,the challenges and strategies of these oxidants in applications and the major mechanisms of the oxidation process have been discussed.This work can help understand the mechanistic insights of variable Fenton-like reactions,the role of emerging iron-based materials,and provide guidance for choosing appropriate technologies when facing real-world water and wastewater applications. | Mengqi Han Hui Wang Wei Jin Wenhai Chu Zuxin Xu | 2023 | Journal of Environmental Sciences2023，，6： | 2 |
| 3 | Recent progress in synthesis and properties of 2D room-temperature ferromagnetic materials显示文摘Two-dimensional(2D)ferromagnetic materials have important applications in optics,spintronics,biomedicine,and energy conversion fields.To achieve higher integration and continue Moore's Law,it is necessary to search for 2D ferromagnetic materials.However,the low Curie temperature(Tc)of most 2D ferromagnetic materials seriously hinders their practical applications.Therefore,the search for room-temperature 2D ferromagnetic materials is of great significance for the advancement of technological applications.This article provides a systematic and comprehensive review of the synthesis methods of room-temperature 2D ferromagnetic materials that have been discovered and created to date,as well as an overview of the physical properties of the 2D ferromagnetic materials.Finally,the challenges and prospects of the room-temperature 2D ferromagnetic materials in the fields of synthesis and application are briefly summarized. | Lixuesong Han Tingting Cheng Yiran Ding Mengqi Zeng Lei Fu | 2023 | Science China Chemistry2023，66，11： | 0 |
| 4 | Unveiling the surface-interface properties of perovskite crystals and pivotal regulation strategies显示文摘Metal-halide perovskite solar cells have garnered significant research attention in the last decade due to their exceptional photovoltaic performance and potential for commercialization.Despite achieving remarkable power conversion efficiency of up to 26.1%,a substantial discrepancy persists when compared to the theoretical Shockley-Queisser(SQ)limit.One of the most serious challenges facing perovskite solar cells is the energy loss incurred during photovoltaic conversion,which affects the SQ limits and stability of the device.More significant than the energy loss occurring in the bulk phase of the perovskite is the energy loss occurring at the surface-interface.Here,we provide a systematic overview of the physical and chemical properties of the surface-interface.Firstly,we delve into the underlying mechanism causing the energy deficit and structural degradation at the surface-interface,aiming to enhance the understanding of carrier transport processes and structural chemical reactivity.Furthermore,we systematically summarized the primary modulating pathways,including surface reconstruction,dimensional construction,and electric-field regulation.Finally,we propose directions for future research to advance the efficiency of perovskite solar cells towards the radiative limit and their widespread commercial application. | Qin Li Ziyu Wang Junjie Ma Mengqi Han Peng Gao Meng Cai Yiqiang Zhang Yanlin Song Shou Peng | 2024 | Nano Research2024，17，5： | 0 |
| 5 | The Explicitation in English Translation of Chinese Ancient Books from the Perspective of H/L Context Culture显示文摘The Chinese culture is classified as high-context culture and the English culture low- context.In classical Chinese,most of the information is either in the physical context or internalized in the person.But mass of the information in English is vested in the explicit code.Chinese ancient books,which are usually filled with cultural factors,need to be explicit to foreign readers who are not familiar with Chinese culture.Besides,the two languages differ in many regards.Therefore,explicitation should be adopted in the translation process in order to meet the needs of the readers,the language and the function of the text.On the basis of analysis of two translation versions of Cai Gen Tan,it is found that three types of explicitation within the translation texts are commonly adopted,which are lexical explicitation,subjects explicitation and that of cohesion and coherence. | Han Mengqi | 2015 | 学术界2015，，10： | 0 |
| 6 | A Cyanine-based Liposomal Nanophotosensitizer for Enhanced Cancer Chemo-Photodynamic Therapy显示文摘Currently,chemotherapy is one of the most important treatment modalities for malignant tumors in the clinic,however,it exhibits some shortcomings,such as poor selectivity,limited efficacy and serious adverse effects.Therefore,synergistic therapy and accurate drug delivery at tumor sites become a promising strategy for achieving tumor eradication.Herein,a smart NIR fluorescence imaging-guided nanoliposome was fabricated by encapsulating a chemotherapeutic drug(doxorubicin,DOX),liposomes(L)and a near-infrared(NIR)photosensitizer(CY)to form L@CY@DOX,which could realize enhanced therapeutic efficacy of chemo-PDT in cancer therapy(PDT=photodynamic therapy).L@CY@DOX can induce mitochondrial apoptosis and produce severe toxicity at the cellular level,and L@CY@DOX can enrich in the tumor site,which significantly induces tumor death.In vitro and in vivo studies demonstrated that L@CY@DOX exhibited great antitumor efficacy compared with each one of these monotherapies,indicating that the combination of chemotherapy and PDT possessed potential development prospects and is anticipated in clinical application. | LI Mengqi MA He SHI Chao ZHANG Han LONG Saran SUN Wen DU Jianjun FAN Jiangli PENG Xiaojun | 2021 | Chemical Research in Chinese Universities2021，37，4： | 0 |
| 7 | Performance evaluation on the pollution control against wet weather overflow based on on-site coagulation/flocculation in terminal drainage pipes显示文摘The pollution caused by wet weather overflow in urban drainage systems is a main factor causing blackening an odorization of urban rivers.The conventional overflow treatment based on coagulation/flocculation in terminal drainage systems requires relatively large space and long retention time demand that makes it not applicable in crowded urban drainage systems or under heavy rains.On-site coagulation/flocculation in terminal drainage pipes was proposed in this study which was aimed to transfer the coagulation/flocculation process to the inside of pipes at the terminal drainage system to save space and reduce the retention time of the coagulation/flocculation process.The optimized dose of chemicals was studied first which was 80 mg/L of coagulant and 0.8 mg/L of flocculant.Settling for only 5 min can remove most of the pollutants at 406.5 m of transmission distance.In addition,the relation of wet weather overflow rate and concentration of pollution load on the on-site coagulation/flocculation process was investigated,which indicated that high removal of pollutant was gained at a large range of flow velocity and pollutant concentration.Finally,the study confirmed electric neutralization,bridging,and net capture as the major mechanisms in this process,and further optimization was proposed.The proposed process can reduce much turbidity,chemical oxygen demand,and total phosphorous,but hardly remove soluble ammonia and organics.This work provides scientific guidance to address wet weather overflow in terminal drainage pipes. | Zongqun Chen Wei Jin Hailong Yin Mengqi Han Zuxin Xu | 2021 | Frontiers of Environmental Science & Engineering2021，15，6： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员