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17篇 您的检索式:作者名="CHEN Anran"
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1Progress in Microwave Technology Applied to the Recovery of Precious Metals from the Secondary Resources显示文摘The recovery of precious metals from the secondary resources by microwave technology has emerged in recent years. Microwave technology as a new method for the recovery of precious metals has shown significant advantages against the conventional recovery procedures. This paper presents a review of the advances in microwave technology applied to the recovery of precious metals from the secondary resources. Many different applications are considered, including microwave-assisted leaching, microwave augmented ashing and microwave pyrolysis. In general, microwave enhanced recovery of precious metals from secondary resources.WANG Shixing PENG Jinhui CHEN Anran ZHANG Zebiao 2012贵金属2012,33,A01:3
2Optimizing the electrolyte salt of aqueous zinc-ion batteries based on a high-performance calcium vanadate hydrate cathode material显示文摘It is urgent to develop high-performance cathode materials for the emerging aqueous zinc-ion batteries with a facile strategy and optimize the related components.Herein,a Ca0.23V2O5·0.95 H2O nanobelt cathode material with a rather large interlayer spacing of 13.0 A is prepared via a one-step hydrothermal approach.The battery with this cathode material and 3 M Zn(CF3SO3)2 electrolyte displays high specific capacity(355.2 mAh g^(-1) at 0.2 A g^(-1)),great rate capability(240.8 mAh g^(-1) at 5 A g^(-1)),and excellent cyclability(97.7% capacity retention over 2000 cycles).Such superior performances are ascribed to fast electrochemical kinetics,outstanding electrode/electrolyte interface stability,and nearly dendrite-free characteristic.Instead,when ZnSO4 or Zn(ClO4)2 is used to replace Zn(CF3SO3)2,the electrochemical performances become much inferior,due to the slow electrochemical kinetics,inhomogeneous Zn stripping/plating process,and the formation of large dendrites and byproducts.This work not only discloses a high-performance cathode material for aqueous zinc-ion batteries but also offers a reference for the choice of electrolyte salt.Weijun Zhou Minfeng Chen Anran Wang Aixiang Huang Jizhang Chen Xinwu Xu Ching-Ping Wong 2021Journal of Energy Chemistry2021,30,1:2
3Experimental study on the cavity evolution and liquid spurt of hydrodynamic ram显示文摘In research of the characteristics of the cavity evolution, the pressure, and the liquid spurt in hydrodynamic ram, the experiment of the high-velocity fragment impacting the water-filled container had been conducted. The relationships between the above three characteristics have been researched. The evolution of the cavity can be divided into three processes according to its shape characteristics. The first liquid spurt occurred in Process Ⅱ and the rest of it occurred in Process Ⅲ. The duration of the second liquid spurt is longer than the first liquid spurt. When the impact velocity of the fragment is less than996 m/s, the velocity of the second liquid spurt is the highest. When the velocity of the fragment is greater than 996 m/s, the velocity of the first liquid spurt is the highest. The maximum velocities of the first and second liquid spurt are 111 m/s and 94 m/s respectively. The pressure fluctuated sharply in Processes Ⅰ and Ⅲ. The maximum peak pressures in the shock and the cavity oscillation phases are15.51 MPa and 7.96 MPa respectively. The time interval of the two adjacent pressure pulses increases with the increase of the fragment velocity.Anran Chen Xiangdong Li Lanwei Zhou Yangziyi Ji 2022Defence Technology(防务技术)2022,18,11:1
4A high‐performance transition‐metal phosphide electrocatalyst for converting solar energy into hydrogen at 19.6% STH efficiency显示文摘The construction of high-efficiency and low-cost non-noble metal bifunctional electrocatalysts for water electrolysis is crucial for commercial large-scale application of hydrogen energy.Here,we report a novel strategy with erbiumdoped NiCoP nanowire arrays in situ grown on conductive nickel foam(Er-NiCoP/NF).Significantly,the developed electrode shows exceptional bifunctional catalytic activity,which only requires overpotentials of 46 and 225 mV to afford a current density of 10 mAcm^(−2) for the hydrogen evolution reaction(HER)and the oxygen evolution reaction(OER),respectively.Density functional theory calculations reveal that the appropriate Er incorporation into the NiCoP lattice can significantly modulate the electronic structure with the d-band centers of Ni and Co atoms by shifting to lower energies with respect to the Fermi level,and optimize the Gibbs free energies of HER/OER intermediates,thereby accelerating water-splitting kinetics.When assembled as a solar-driven overall water-splitting electrolyzer,the as-prepared electrode shows a high and stable solar-to-hydrogen efficiency of 19.6%,indicating its potential for practical storage of intermittent energy.Hua Zhang Abuduwayiti Aierke Yingtang Zhou Zitao Ni Ligang Feng Anran Chen Thomas Wågberg Guangzhi Hu 2023Carbon Energy2023,5,1:1
5Epidemiological and Clinical Features of Patients with Scrub Typhus—Guangzhou City,Guangdong Province,China,2012–2018显示文摘Summary What is already known about this topic?Scrub typhus(ST)causes public health challenges in the“tsutsugamushi triangle”in the Asia-Pacific area greater than 13 million square kilometers,affecting an estimated one million people each year.What is added by this report?A retrospective study based on 4,501 hospitalized patients with ST in Guangzhou City,China,described the epidemiological and clinical characteristics,laboratory findings of ST.Yuehong Wei Xiugang Guan Shixia Zhou Anran Zhang Qingbin Lu Ziwei Zhou Jinjin Chen Haiyang Zhang Yang Ji Baogui Jiang Yang Yang Zhicong Yang Hao Li Liqun Fang Wei Liu 2021China CDC weekly2021,3,51:1
6Environmentally persistent free radicals in PM_(2.5):a review显示文摘Environmentally persistent free radicals(EPFRs)are a new class of pollutants that are long-lived in fine particles(PM_(2.5)),i.e.,their 1/e lifetime ranges from days to months(or even infinite).They are capable of producing harmful reactive oxygen species such as hydroxyl radicals.The redox cycling of EPFRs is considered as an important pathway for PM_(2.5) to induce oxidative stress inside the humans,causing adverse health effects such as respiratory and cardiovascular diseases.Conse-quently,research regarding their toxicity,formation and environmental occurrences in PM_(2.5) has attracted increasing atten-tions globally during the past two decades.However,literature data in this field remain quite limited and discrete.Hence,an extensive review is urgently needed to summarize the current understanding of this topic.In this work,we systematically reviewed the analytical methods and environmental occurrences,e.g.,types,concentrations,and decay behaviors,as well as possible sources of EPFRs in PM_(2.5).The types of pretreatment methods,g-values of common EPFRs and categories of decay processes were discussed in detail.Moreover,great efforts were made to revisit the original data of the published works of EPFRs in airborne particulate matter and provided additional useful information for comparison where possible,e.g.,their mean and standard deviation of g-values,line widths(ΔHp-p),and concentrations.Finally,possible research opportunities were highlighted to further advance our knowledge of this emerging issue.Mengxia Xu Tao Wu Yu-Ting Tang Tong Chen Lavrent Khachatryan Poornima Ramesh Iyer Dengting Guo Anran Chen Miao Lyu Jinhu Li Jiaqi Liu Dan Li Yuxin Zuo Shihan Zhang Yiran Wang Yining Meng Fei Qi 2019Waste Disposal and Sustainable Energy2019,1,3:0
7Heterostructured bimetallic phosphide nanowire arrays with latticetorsion interfaces for efficient overall water splitting显示文摘Designing cost-effective and high-efficiency electrocatalysts is critical to the water splitting performance during hydrogen generation.Herein,we have developed Fe_(2)P-Co_(2)P heterostructure nanowire arrays with excellent lattice torsions and grain boundaries for highly efficient water splitting.According to the microstructural investigations and theoretical calculations,the lattice torsion interface not only contributes to the exposure of more active sites but also effectively tunes the adsorption energy of hydrogen/oxygen intermediates via the accumulation of charge redistribution.As a result,the Fe_(2)P-Co_(2)P heterostructure nanowire array exhibits exceptional bifunctional catalytic activity with overpotentials of 65 and 198 mV at 10 mA cm^(-2) for hydrogen and oxygen evolution reactions,respectively.Moreover,the Fe_(2)P-Co_(2)P/NF-assembled electrolyzer can deliver 10 mA cm^(-2) at an ultralow voltage of1.51 V while resulting in a high solar-to-hydrogen conversion efficiency of 19.8%in the solar-driven water electrolysis cell.Hua Zhang Hongyi Li Yintang Zhou Fang Tan Ruijie Dai Xijun Liu Guangzhi Hu Laiming Jiang Anran Chen Renbing Wu 2023Journal of Energy Chemistry2023,,2:0
8Molten salt synthesis of α-MnO_(2)/Mn_(2)O_(3) nanocomposite as a high-performance cathode material for aqueous zinc-ion batteries显示文摘Thanks to low cost,high safety,and large energy density,aqueous zinc-ion batteries have attracted tremendous interest worldwide.However,it remains a challenge to develop high-performance cathode materials with an appropriate method that is easy to realize massive production.Herein,we use a molten salt method to synthesize nanostructured manganese oxides.The crystalline phases of the manganese oxides can be tuned by changing the amount of reduced graphene oxide added to the reactant mixture.It is found that the α-MnO_(2)/Mn_(2)O_(3) nanocomposite with the largest mass ratio of Mn_(2)O_(3) delivers the best electrochemical performances among all the products.And its rate capability and cyclability can be significantly improved by modifying the Zn anode with carbon black coating and nanocellulose binder.In this situation,the nanocomposite can deliver high discharging capacities of 322.1 and 213.6 mAh g^(-1) at 0.2 and 3 Ag^(-1),respectively.After 1000 cycles,it can retain 86.2% of the capacity at the 2 nd cycle.Thus,this nanocomposite holds great promise for practical applications.Aixiang Huang Weijun Zhou Anran Wang Minfeng Chen Qinghua Tian Jizhang Chen 2021Journal of Energy Chemistry2021,30,3:0
9Security Enhanced Internet of Vehicles with Cloud-Fog-Dew Computing显示文摘The Internet of Vehicles(IoV)is becoming an essential factor in the development of smart transportation and smart city projects.The IoV technology consists of the concepts of fog computing and dew computing,which involve on-board units and road side units in the edge network,as well as the concept of cloud computing,which involves the data center that provides service.The security issues are always an important concern in the design of IoV architecture.To achieve a secure IoV architecture,some security measures are necessary for the cloud computing and fog computing associated with the vehicular network.In this paper,we summarize some research works on the security schemes in the vehicular network and cloud-fog-dew computing platforms which the IoV depends on.MENG Ziqian GUAN Zhi WU Zhengang LI Anran CHEN Zhong 2017ZTE Communications2017,15,B12:0
10Fe-N_(x) sites coupled with core-shell FeS@C nanoparticles to boost the oxygen catalysis for rechargeable Zn-air batteries显示文摘The development of efficient single-atom catalysts(SACs) for the oxygen reduction reaction(ORR)remains a formidable challenge,primarily due to the symmetric charge distribution of metal singleatom sites(M-N_(4)).To address such issue,herein,Fe-N_(x) sites coupled synergistic catalysts fabrication strategy is presented to break the uniform electronic distribution,thus enhancing the intrinsic catalytic activity.Precisely,atomically dispersed Fe-N_(x) sites supported on N/S-doped mesoporous carbon(NSC)coupled with FeS@C core-shell nanoparticles(FAS-NSC@950) is synthesized by a facile hydrothermal reaction and subsequent pyrolysis.Due to the presence of an in situ-grown conductive graphitic layer(shell),the FeS nanoparticles(core) effectively adjust the electronic structure of single-atom Fe sites and facilitate the ORR kinetics via short/long-range coupling interactions.Consequently,FAS-NSC@950displays a more positive half-wave potential(E_(1/2)) of 0.871 V with a significantly boosted ORR kinetics(Tafel slope=52.2 mV dec^(-1)),outpacing the commercial Pt/C(E_(1/2)=0.84 V and Tafel slope=54.6 mV dec^(-1)).As a bifunctional electrocatalyst,it displays a smaller bifunctional activity parameter(ΔE) of 0.673 V,surpassing the Pt/C-RuO_(2) combination(ΔE=0.724 V).Besides,the FAS-NSC@950-based zincair battery(ZAB) displays superior power density,specific capacity,and long-term cycling performance to the Pt/C-Ir/C-based ZAB.This work significantly contributes to the field by offering a promising strategy to enhance the catalytic activity of SACs for ORR,with potential implications for energy conversion and storage technologies.Katam Srinivas Zhuo Chen Anran Chen Fei Ma Ming-qiang Zhu Yuanfu Chen 2024Journal of Energy Chemistry2024,90,3:0
11Screening HLA-A-restricted T cell epitopes of SARS-CoV-2 and the induction of CD8^(+)T cell responses in HLA-A transgenic mice显示文摘Since severe acute respiratory syndrome coronavirus-2(SARS-CoV-2)-specific T cells have been found to play essential roles in host immune protection and pathology in patients with coronavirus disease 2019(COVID-19),this study focused on the functional validation of T cell epitopes and the development of vaccines that induce specific T cell responses.A total of 120 CD8^(+)T cell epitopes from the E,M,N,S,and RdRp proteins were functionally validated.Among these,110,15,6,14,and 12 epitopes were highly homologous with SARS-CoV,OC43,NL63,HKU1,and 229E,respectively;in addition,four epitopes from the S protein displayed one amino acid that was distinct from the current SARS-CoV-2 variants.Then,31 epitopes restricted by the HLA-A2 molecule were used to generate peptide cocktail vaccines in combination with Poly(I:C),R848 or poly(lactic-co-glycolic acid)nanoparticles,and these vaccines elicited robust and specific CD8^(+)T cell responses in HLA-A2/DR1 transgenic mice as well as wild-type mice.In contrast to previous research,this study established a modified DC-peptide-PBL cell coculture system using healthy donor PBMCs to validate the in silico predicted epitopes,provided an epitope library restricted by nine of the most prevalent HLA-A allotypes covering broad Asian populations,and identified the HLA-A restrictions of these validated epitopes using competitive peptide binding experiments with HMy2.CIR cell lines expressing the indicated HLA-A allotype,which initially confirmed the in vivo feasibility of 9-or 10-mer peptide cocktail vaccines against SARS-CoV-2.These data will facilitate the design and development of vaccines that induce antiviral CD8^(+)T cell responses in COVID-19 patients.Xiaoxiao Jin Yan Ding Shihui Sun Xinyi Wang Zining Zhou Xiaotao Liu Miaomiao Li Xian Chen Anran Shen Yandan Wu Bicheng Liu Jianqiong Zhang Jian Li Yi Yang Haibo Qiu Chuanlai Shen Yuxian He Guangyu Zhao 2021Cellular & Molecular Immunology2021,18,12:0
12The Effect of Splenectomy on the Risk of Infection in Patients With Liver Cirrhosis显示文摘Background:Splenectomy has been reported to improve liver function as well as hypersplenism,but it is still controversial whether splenectomy will further damage the immune function of patients with liver cirrhosis.This study aims to evaluate the impact of splenectomy on the risk of infection in patients with liver cirrhosis.Methods:A total of 4355 patients with liver cirrhosis admitted to the First Affiliated Hospital of Nanjing Medical University from October 1,2016 to September 30,2020 were enrolled.The patients were first divided into the splenectomy group(SG)and the nonsplenectomy group(NSG).After standardization,patients were further divided according to the stage of cirrhosis.Infection rates in different stages were calculated,respectively.Laboratory results and infection sites of patients with cirrhosis were analyzed in combination with clinical data.Continuous variables conforming to normal distribution were presented as mean±standard deviation,compared by sample t test or paired sample t test.Non-normal variables were presented as the median(interquartile range)and compared by Mann-Whitney U test or Wilcoxon signed rank test.Results:Five hundred and two patients received splenectomy and 3853 patients did not.Bacterial infection was diagnosed in 497 of the 4355(11.41%)hospitalizations of patients with cirrhosis.The infection rate of the compensated cirrhosis SG was higher than that of the NSG(8.06%vs.5.18%,P<0.05).However,the infection rate in the SG with decompensated cirrhosis was lower than that in the NSG(11.35%vs.22.22%,P<0.001).The peak level of leukocytes did not differ significantly between the SG with compensated liver cirrhosis and the NSG[11.97(7.65)109/L vs.12.19(14.04)109/L,P>0.05].The peak value of leukocytes in SG suffering from decompensated liver cirrhosis was significantly higher than that in NSG[12.29(11.52)109/L vs.6.37(8.90)109/L,P=0.004].Patients with decompensated liver cirrhosis had a significantly higher rate of abdominal infection than patients with compensated liver cirrhosis,and splenectomy itself did not affect the sites of infection.Conclusions:Splenectomy increases the risk of infection for patients with compensated liver cirrhosis,but significantly decreases the risk in patients with decompensated liver cirrhosis.Tiantong Feng Xiaoxue Hou Wen Zhang Anran Tian Nian Chen Jun Li Chuanlong Zhu 2022Infectious Diseases & Immunity2022,2,1:0
13Synthesis of Caffeic Acid Sulphonamide Derivatives and Preliminary Exploration of Their Biological Applications显示文摘Stnictural modification of native compounds is an effective way to develop new dmgs with increased pharmacological activities and improved material characteristics.In this study,cafteic acid sulphonamide derivatives(CSs)were synthesised by conjugating sulphonamides to the backbone of cafteic acid.The structures of these derivatives were elucidated by means of Fourier traiisfonn infrared spectroscopy(FTIR),1H NMR,13C NMR,and electrospray ionization mass spectroscopy(ESI-MS).A content determination method was established by ultraviolet detection.The lipophilicity,2,2-diphenyl-l-picrylhydrazy free radical(DPPH)scavenging capacity,anti-coagulant eitects,anti-bacterial activity,cytotoxicity,in vitro anti-proliterative activity against tumour cells,and the ability of the compounds to promote the proliferation of chondrocytes were evaluated.The results indicate that CSs exliibit strong DPPH scavenging activity,high lipophilicity,good anti-coagulant activities,wide anti-bacterial activity range,low cytotoxicity,and an excellent ability to promote chondrocyte proliferation.PENG Xiaoyu ZHAO Anran HUANG Kelin HU Tingju LIU Burning HUANG Yan CHEN Hailan CHAI Ling LIN Cuiwu 2020Chemical Research in Chinese Universities2020,36,5:0
14Detector-grade perovskite single-crystal wafers via stress-free gel-confined solution growth targeting high-resolution ionizing radiation显示文摘Solution-processed organic‒inorganic halide perovskite(OIHP)single crystals(SCs)have demonstrated great potential in ionizing radiation detection due to their outstanding charge transport properties and low-cost preparation.However,the energy resolution(ER)and stability of OIHP detectors still lag far behind those of melt-grown inorganic perovskite and commercial CdZnTe counterparts due to the absence of detector-grade high-quality OIHP SCs.Here,we reveal that the crystallinity and uniformity of OIHP SCs are drastically improved by relieving interfacial stress with a facial gel-confined solution growth strategy,thus enabling the direct preparation of large-area detector-grade SC wafers up to 4 cm with drastically suppressed electronic and ionic defects.The resultant radiation detectors show both a small dark current below 1 nA and excellent baseline stability of 4.0×10^(-8) nA cm^(-1) s^(-1) V^(-1),which are rarely realized in OIHP detectors.Consequently,a record high ER of 4.9% at 59.5 keV is achieved under a standard 241Am gamma-ray source with an ultralow operating bias of 5 V,representing the best gamma-ray spectroscopy performance among all solution-processed semiconductor radiation detectors ever reported.Yilong Song Lixiang Wang Yongqiang Shi Weihui Bi Jianwu Chen Mingwei Hao Anran Wang Xueying Yang Yuan Sun Fan Yu Liansheng Li Yanjun Fang Deren Yang Qingfeng Dong 2023Light(Science & Applications)2023,12,5:0
15Structural plasticity-based hydrogel optical Willshaw model for one-shot on-the-fly edge learning显示文摘Autonomous one-shot on-the-fly learning copes with the high privacy,small dataset,and in-stream data at the edge.Implementing such learning on digital hardware suffers from the well-known von-Neumann and scaling bottlenecks.The optical neural networks featuring large parallelism,low latency,and high efficiency offer a promising solution.However,ex-situ training of conventional optical networks,where optical path configuration and deep learning model optimization are separated,incurs hardware,energy and time overheads,and defeats the advantages in edge learning.Here,we introduced a bio-inspired material-algorithm co-design to construct a hydrogel-based optical Willshaw model(HOWM),manifesting Hebbian-rule-based structural plasticity for simultaneous optical path configuration and deep learning model optimization thanks to the underlying opto-chemical reactions.We first employed the HOWM as an all optical in-sensor AI processor for one-shot pattern classification,association and denoising.We then leveraged HOWM to function as a ternary content addressable memory(TCAM)of an optical memory augmented neural network(MANN)for one-shot learning the Omniglot dataset.The HOWM empowered one-shot on-the-fly edge learning leads to 1000boost of energy efficiency and 10boost of speed,which paves the way for the next-generation autonomous,efficient,and affordable smart edge systems.Dingchen Wang Dingyao Liu Yinan Lin Anran Yuan Woyu Zhang Yaping Zhao Shaocong Wang Xi Chen Hegan Chen Yi Zhang Yang Jiang Shuhui Shi Kam Chi Loong Jia Chen Songrui Wei Qing Wang Hongyu Yu Renjing Xu Dashan Shang Han Zhang Shiming Zhang Zhongrui Wang 2023InfoMat2023,5,4:0
16Structure,ligands,and roles of GPR126/ADGRG6 inthedevelopment and diseases显示文摘Adhesion G protein-coupled receptors(aGPCRs)are the second largest diverse group within the GPCR superfamily,which play critical roles in many physiological and patho-logical processes through cell-cell and cell-extracellular matrix interactions.The adhesion GPCR Adgrg6,also known as GPR126,is one of the better-characterized aGPCRs.GPR126 was previously found to have critical developmental roles in Schwann cell maturation and its mediated myelination in the peripheral nervous system in both zebrafish and mammals.Current studies have extended our understanding of GPR126-mediated roles during develop-ment and in human diseases.In this review,we highlighted these recent advances in GPR126 in expression profile,molecular structure,ligand-receptor interactions,and associated physiological and pathological functions in development and diseases.Qi Li Anran Huo Mengqi Li Jiali Wang Qiao Yin Lumiao Chen Xin Chu Yuan Qin Yuwan Qi Yang Li Hengxiang Cui Qifei Cong 2024Genes & Diseases2024,11,1:0
17Acupotomy ameliorates subchondral bone absorption and mechanical properties in rabbits with knee osteoarthritis by regulating bone morphogenetic protein 2-Smad1 pathway显示文摘OBJECTIVE:To investigate the effects of acupotomy on the subchondral bone absorption and mechanical properties in rabbits with knee osteoarthritis(KOA).METHODS:The rabbits were divided into blank control,model,acupotomy and electroacupuncture(EA)groups,with 12 rabbits in each.Modified Videman's method was used to prepare KOA model.The acupotomy and EA group were given indicated intervention for 3 weeks.The behavior of rabbits in each group was recorded.Subsequently,cartilage–subchondral bone units were obtained and morphological changes were observed by optical microscope and micro computed tomography.Compression test was used to detect the mechanical properties of subchondral bone,Western blot and real-time polymerase chain reaction(RT-PCR)were applied to detect the expression of bone morphogenetic protein 2-Smad1(BMP2-Smad1)pathway in subchondral bone.RESULTS:Compared with the control group,rabbits in the KOA group showed lameness,knee pain,and cartilage degradation;the subchondral bone showed active resorption,the mechanical properties decreased significantly and the BMP2-Smad1 pathway downregulated significantly.Both acupotomy and EA intervention could increase the thickness of trabecular bone(Tb.Th),the bone volume fraction(BV/TV)and the thickness of subchondral bone plate,reduce the separation of trabecular bone(Tb.Sp),improve the maximum load and elastic modulus of subchondral bone,and effectively delay cartilage degeneration in KOA rabbits.This process may be achieved through upregulation the related proteins of BMP2-Smad1 pathway.The maximum load and elastic modulus of subchondral bone in the acupotomy group were slightly better than those in the EA group.CONCLUSIONS:Acupotomy could effectively protect cartilage by inhibiting abnormal bone resorption and improving mechanical properties of subchondral bone thorough the related proteins of BMP2-Smad1 pathway in KOA rabbits.Chen Xilin GUO Yan LU Juan QIN Luxue HU Tingyao ZENG Xin WANG Xinyue ZHANG Anran ZHUANG Yuxin ZHONG Honggang GUO Changqing 2023Journal of Traditional Chinese Medicine2023,43,4:0
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