In the present study,a method was described for the extraction of Sunset Yellow(SY)and Tartrazine(TZ)as anionic food dyes in actual samples by using magnetic calcined layered double hydroxide onto gra-phene oxide(MgFe...In the present study,a method was described for the extraction of Sunset Yellow(SY)and Tartrazine(TZ)as anionic food dyes in actual samples by using magnetic calcined layered double hydroxide onto gra-phene oxide(MgFe CLDH)/GO(called MgO/MgFe_(2)O_(4)/GO)sorbent.The analytes were accumulated on MgO/MgFe_(2)O_(4)/GO-NCs with more detail recognized by XRD,FESEM,EDS element mapping,VSM and FTIR methods.The prepared nanocomposite(NC)was employed as an extractive phase for dispersive micro-solid phase extraction(D-m-SPE)of SY and TA from actual samples.Then,the extracted SY and TZ dyes were analyzed by UVevis spectrophotometer.Main variables related to the extraction process including pH,nano composite mass,sonication and vortex time and eluent volume were optimized by central composite design(CCD).The optimum conditions obtained for pH,nano composite mass,soni-cation and vortex time and eluent volume were 6.0,0.02 g,16 s and 6.40 min,and 500 mL,respectively.The extraction recovery equal to 96.31%and 97.66%for SY and TZ,respectively obtained from the predicted model,was in agreement with the experimental data(95.32±2.33%and 96.89±1.84%).In addition,under the optimal conditions,the calibration curve was found out to be linear over the con-centration range of 0.5e2.50 mg L^(-1)with R^(2)>0.98.The LODs ranged from 0.14 to 0.16 mgL^(-1).Furthermore,the enrichment factors(EF)were achieved in the range of 20.65e36.66 with pre-concentration factor(PF)of 20.In the meantime,the obtained assay accuracy in the analysis of medi-cal extract of Miranda Drink,Saffron and water samples fell within the range of 93.00%-107.00%,whilst the precision expressed RSD lower than 3.50%.展开更多
Encouraging citizens to invest in small-scale renewable resources is crucial for transitioning towards a sustainable and clean energy system.Local energy communities(LECs)are expected to play a vital role in this cont...Encouraging citizens to invest in small-scale renewable resources is crucial for transitioning towards a sustainable and clean energy system.Local energy communities(LECs)are expected to play a vital role in this context.However,energy scheduling in LECs presents various challenges,including the preservation of customer privacy,adherence to distribution network constraints,and the management of computational burdens.This paper introduces a novel approach for energy scheduling in renewable-based LECs using a decentralized optimization method.The proposed approach uses the Limitedmemory Broyden–Fletcher–Goldfarb–Shanno(L-BFGS)method,significantly reducing the computational effort required for solving the mixed integer programming(MIP)problem.It incorporates network constraints,evaluates energy losses,and enables community participants to provide ancillary services like a regulation reserve to the grid utility.To assess its robustness and efficiency,the proposed approach is tested on an 84-bus radial distribution network.Results indicate that the proposed distributed approach not only matches the accuracy of the corresponding centralized model but also exhibits scalability and preserves participant privacy.展开更多
Correction to:Radiation Detection Technology and Methods(2024)8:1-1105.https://doi.org/10.1007/s41605-024-00463-y.In this article all authors name was missing in the springer link.It has been corrected.The original ar...Correction to:Radiation Detection Technology and Methods(2024)8:1-1105.https://doi.org/10.1007/s41605-024-00463-y.In this article all authors name was missing in the springer link.It has been corrected.The original article has been corrected.展开更多
The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by China,fostered through extensive collaboration with international partners.The complex comprises four accelerators:a 3...The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by China,fostered through extensive collaboration with international partners.The complex comprises four accelerators:a 30 GeV Linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The Linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs factory.In its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs bosons.Increasing the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of magnitude.This Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering aspects.Additionally,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection procedures.Construction is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 years.The commencement of experiments and data collection could potentially be initiated in the mid-2030s.展开更多
文摘In the present study,a method was described for the extraction of Sunset Yellow(SY)and Tartrazine(TZ)as anionic food dyes in actual samples by using magnetic calcined layered double hydroxide onto gra-phene oxide(MgFe CLDH)/GO(called MgO/MgFe_(2)O_(4)/GO)sorbent.The analytes were accumulated on MgO/MgFe_(2)O_(4)/GO-NCs with more detail recognized by XRD,FESEM,EDS element mapping,VSM and FTIR methods.The prepared nanocomposite(NC)was employed as an extractive phase for dispersive micro-solid phase extraction(D-m-SPE)of SY and TA from actual samples.Then,the extracted SY and TZ dyes were analyzed by UVevis spectrophotometer.Main variables related to the extraction process including pH,nano composite mass,sonication and vortex time and eluent volume were optimized by central composite design(CCD).The optimum conditions obtained for pH,nano composite mass,soni-cation and vortex time and eluent volume were 6.0,0.02 g,16 s and 6.40 min,and 500 mL,respectively.The extraction recovery equal to 96.31%and 97.66%for SY and TZ,respectively obtained from the predicted model,was in agreement with the experimental data(95.32±2.33%and 96.89±1.84%).In addition,under the optimal conditions,the calibration curve was found out to be linear over the con-centration range of 0.5e2.50 mg L^(-1)with R^(2)>0.98.The LODs ranged from 0.14 to 0.16 mgL^(-1).Furthermore,the enrichment factors(EF)were achieved in the range of 20.65e36.66 with pre-concentration factor(PF)of 20.In the meantime,the obtained assay accuracy in the analysis of medi-cal extract of Miranda Drink,Saffron and water samples fell within the range of 93.00%-107.00%,whilst the precision expressed RSD lower than 3.50%.
基金supported in part by the Ministry of Research,Innovation and Digitalization under Project PNRR-C9-I8-760090/23.05.2023 CF30/14.11.2022.
文摘Encouraging citizens to invest in small-scale renewable resources is crucial for transitioning towards a sustainable and clean energy system.Local energy communities(LECs)are expected to play a vital role in this context.However,energy scheduling in LECs presents various challenges,including the preservation of customer privacy,adherence to distribution network constraints,and the management of computational burdens.This paper introduces a novel approach for energy scheduling in renewable-based LECs using a decentralized optimization method.The proposed approach uses the Limitedmemory Broyden–Fletcher–Goldfarb–Shanno(L-BFGS)method,significantly reducing the computational effort required for solving the mixed integer programming(MIP)problem.It incorporates network constraints,evaluates energy losses,and enables community participants to provide ancillary services like a regulation reserve to the grid utility.To assess its robustness and efficiency,the proposed approach is tested on an 84-bus radial distribution network.Results indicate that the proposed distributed approach not only matches the accuracy of the corresponding centralized model but also exhibits scalability and preserves participant privacy.
文摘Correction to:Radiation Detection Technology and Methods(2024)8:1-1105.https://doi.org/10.1007/s41605-024-00463-y.In this article all authors name was missing in the springer link.It has been corrected.The original article has been corrected.
基金support from diverse funding sources,including the National Key Program for S&T Research and Development of the Ministry of Science and Technology(MOST),Yifang Wang's Science Studio of the Ten Thousand Talents Project,the CAS Key Foreign Cooperation Grant,the National Natural Science Foundation of China(NSFC)Beijing Municipal Science&Technology Commission,the CAS Focused Science Grant,the IHEP Innovation Grant,the CAS Lead Special Training Programthe CAS Center for Excellence in Particle Physics,the CAS International Partnership Program,and the CAS/SAFEA International Partnership Program for Creative Research Teams.
文摘The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by China,fostered through extensive collaboration with international partners.The complex comprises four accelerators:a 30 GeV Linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The Linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs factory.In its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs bosons.Increasing the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of magnitude.This Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering aspects.Additionally,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection procedures.Construction is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 years.The commencement of experiments and data collection could potentially be initiated in the mid-2030s.
