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Journal of Iron and Steel Research International 2025年第1期32卷 215-226页

作者： Jia-jun Chen Yang Zhou Hao-ran Han Xian-guang Zhang Goro Miyamoto Ping-mei Tang dong-ping Xiao Jian-hui Fu Peng shi Yi-wu Pei Jian Zhang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China Chengdu Advanced Metal Materials Industrial Technology Institute Co. Ltd.Chengdu 610300SichuanChina Institute for Materials Research Tohoku UniversitySendai 980-8577Aoba-KuJapan

Enhancing homogenization efficiency and hot-workability is the key issue for wrought superalloys in the industry.A novel approach for simultaneous accelerating the homogenization kinetics and improving hot-workability via a simple way of prior hot-deformation was proposed,which was not widely accepted for wrought *** homogenization efficiency is increased by 40%-70%via performing 10%-20%prior *** theoretical and experimental analyses revealed that the increment in homogenization efficiency is mainly attributed to the decrease in interdendritic-segregation spacing,and thus the necessary diffusion distance,rather than that of *** addition,dynamic and static recrystallizations occurred during the prior hot-deformation and diffusion-annealing processes,and the grains were significantly refined even after the ***,the size of the precipitates was refined as *** enhanced the hot-workability of the homogenized ingot for the subsequent cogging process.

关键词： Nickel-based superalloy Homogenization kinetics Prior hot-deformation Grain size Hot workability

Degradation of carbamazepine by the UVA-LED_(365)/ClO_(2)/NaClO process:Kinetics,mechanisms and DBPs yield

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Journal of Environmental Sciences 2025年第2期148卷 399-408页

作者： Chenyan Hu Yihui Wu Zhengyu dong Ziyi dong Shengjie Ji Lili Hu Xinyu Yang Hao Liu College of Environmental and Chemical Engineering Shanghai Engineering Research Center of EnergySaving in Heat Exchange SystemsShanghai University of Electric PowerShanghai 200090China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

A mixed oxidant of chlorine dioxide(ClO_(2))and NaClO was often used in water treatment.A novel UVA-LED(_(365) nm)-activated mixed ClO_(2)/NaClO process was proposed for the degradation of micropollutants in this ***(CBZ)was selected as the target *** with the UVA_(365)/ClO_(2) process,the UVA_(365)/ClO_(2)/NaClO process can improve the degradation of CBZ,with the rate constant increasing from 2.11×10^(−4) sec^(−1) to 2.74×10^(−4) sec^(−1).In addition,the consumption of oxidants in the UVA_(365)/ClO_(2)/NaClO process(73.67%)can also be lower than that of UVA_(365)/NaClO(86.42%).When the NaClO ratio increased,both the degradation efficiency of CBZ and the consumption of oxidants can increase in the UVA_(365)/ClO_(2)/NaClO *** solution pH can affect the contribution of NaClO in the total oxidant *** the pH range of 6.0-8.0,the combination process can generate more active species to promote the degradation of *** change of active species with oxidant molar ratio was investigated in the UVA_(365)/ClO_(2)/NaClO *** ClO_(2) acted as the main oxidant,HO·and Cl·were the main active species,while when NaClO was the main oxidant,ClO·played a role in the *** chloride ion(Cl^(-)),bicarbonate ion(HCO_(3)^(-)),and nitrate ion(NO_(3)^(-))can promote the reaction *** the concentration of NaClO in the reaction solution increased,the generation of chlorates will *** UVA_(365)/ClO_(2)/NaClO process can effectively control the formation of volatile disinfection by-products(DBPs),and with the increase of ClO_(2) dosage,the formation of DBPs can also decrease.

关键词： UVA Chlorine dioxide(ClO_(2)) NaClO Carbamazepine(CBZ) Disinfection by-products

End-to-end Identification of Autoregressive with Exogenous Input(ARX)Models Using Neural Networks

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Machine Intelligence Research 2025年第1期22卷 117-130页

作者： Aoxiang dong Andrew Starr Yifan Zhao School of Aerospace Transport and ManufacturingCranfield UniversityCranfield MK430ALUK

Traditional parametric system identification methods usually rely on apriori knowledge of the targeted system,which may not always be available,especially for complex *** neural networks(NNs)have been increasingly adopted in system iden-tification,most studies have failed to derive interpretable parametric models for further *** this paper,we propose a novel end-to-end autoregressive with exogenous input(ARX)model identification framework using *** order-wise neural network structure is introduced and trained using a multitask learning approach to simultaneously identify both the model terms and coefficients of the ARX *** testing with various neural network backbones and training data sizes in different scenarios,we empirically demonstrate that the proposed framework can effectively identify an arbitrary stable ARX model with finite simulation training *** study opens up a new research opportunity for parametric system identification by harnessing the power of deep learning.

关键词： Linear system identification and estimation learning systems model structure determination multivariable systems deep learning.

Correlation between anxiety, depression, and social stress in young patients with thoracolumbar spine fractures

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World Journal of Psychiatry 2025年第1期15卷 83-92页

作者： Bo Wang Da shi Yin-Di Sun Bo dong Joint Ward of Orthopedics Department of TCM Honghui HospitalXi'an Jiaotong UniversityXi’an 710054Shaanxi ProvinceChina Pain Ward of Orthopedics Department of TCM Honghui HospitalXi'an Jiaotong UniversityXi’an 710054Shaanxi ProvinceChina

BACKGROUND Traumatic injuries,such as falling,car accidents,and crushing mostly cause spinal fractures in young and middle-aged people,and>50%of them are thoracolumbar *** kind of fracture is easily combined with serious injuries to peripheral nerves and soft tissues,which causes paralysis of the lower limbs if there is no timely rehabilitation *** patients with thoracolumbar fractures find it difficult to recover after the operation,and they are prone to depression,low self-esteem,and other negative *** To investigate the association between anxiety,depression,and social stress in young patients with thoracolumbar spine fractures and the effect on rehabilitation *** This study retrospectively analyzed 100 patients admitted to the orthopedic department of Honghui Hospital,Xi’an Jiaotong University who underwent thoracolumbar spine fracture surgery from January 2022 to June *** general data of the patients were assessed with the Hamilton anxiety scale(HAMA),Hamilton depression scale(HAMD),life events scale,and social support rating scale(SSRS)to identify the correlation between anxiety,depression scores,and social stress and social *** Japanese Orthopedic Association(JOA)was utilized to evaluate the rehabilitation outcomes of the patients and to analyze the effects of anxiety and depression scores on *** According to the scores of HAMD and HAMA in all patients,the prevalence of depression in patients was 39%(39/100),and the prevalence of anxiety was 49%(49/100).Patients were categorized into non-depression(n=61)and depression(n=39),non-anxiety(n=51),and anxiety(n=49)*** significant differences in gender,occupation,Pittsburgh Sleep Quality Index(PSQI)score,and monthly family income were observed between the non-depression and depression groups(P<0.05).A significant difference in occupation and PSQI score was found between the non-anxiety and anxiety *** depression(r=0

关键词： Patients with thoracolumbar fractures Anxiety Depression Social pressure Social support

The profound review of Fenton process:What’s the next step?

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Journal of Environmental Sciences 2025年第1期147卷 114-130页

作者： Yimin Lin Junlian Qiao Yuankui Sun Hongyu dong State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Department of Environmental Science School of Ecological and Environmental SciencesEast China Normal UniversityShanghai 200241China

Fenton and Fenton-like processes,which could produce highly reactive species to degrade organic contaminants,have been widely used in the field of wastewater ***,the chemistry of Fenton process including the nature of active oxidants,the complicated reactions involved,and the behind reason for its strongly pH-dependent performance,is the basis for the application of Fenton and Fenton-like processes in wastewater ***,the conflicting views still exist about the mechanism of the Fenton *** instance,reaching a unanimous consensus on the nature of active oxidants(hydroxyl radical or tetravalent iron)in this process remains *** review comprehensively examined the mechanism of the Fenton process including the debate on the nature of active oxidants,reactions involved in the Fenton process,and the behind reason for the pH-dependent degradation of contaminants in the Fenton ***,we summarized several strategies that promote the Fe(Ⅱ)/Fe(Ⅲ)cycle,reduce the competitive consumption of active oxidants by side reactions,and replace the Fenton reagent,thus improving the performance of the Fenton ***,advances for the future were proposed including the demand for the high-accuracy identification of active oxidants and taking advantages of the characteristic of target contaminants during the degradation of contaminants by the Fenton process.

关键词： Advanced oxidation process Fenton Hydroxyl radical Fe(IV) Wastewater treatment

Effect of gradual increase of salt on performance and microbial community during granulation process

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Journal of Environmental Sciences 2025年第1期147卷 404-413页

作者： Mengfei Wang Junguo He Xiangke dong Ruimiao Zhang School of Environment Harbin Institute of TechnologyHarbin 150090China State Key Laboratory of Urban Water Resources and Environment Harbin Institute of TechnologyHarbin 150090China School of Civil Engineering Guangzhou UniversityGuangzhou 510006China National Marine Environmental Monitoring Center Dalian 116023China

Salinity was considered to have effects on the characteristics,performance microbial communities of aerobic granular *** study investigated granulation process with gradual increase of salt under different *** identical sequencing batch reactors were operated,while the influent of Ra and Rb was subjected to stepwise increments of NaCl concentrations(0-4 g/L and 0-10 g/L).The presence of filamentous bacteria may contribute to granules formed under lower salinity conditions,potentially leading to granules *** removal efficiency achieved in both reactors although therewas a small accumulation of nitrite in Rb at later *** removal efficiencies of chemical oxygen demand(COD),total nitrogen(TN),and total phosphorus(TP)in Ra were 95.31%,93.70%and 88.66%,while the corresponding removal efficiencies in Rb were 94.19%,89.79%and 80.74%.Salinity stimulated extracellular polymeric substances(EPS)secretion and enriched EPS producing bacteria to help maintain the integrity and stability of the aerobic *** nitrifying bacteria were responsible for NH_(4)^(+)-N and NO_(2)^(-)-N oxidation of salinity systems and large number of denitrifying bacteria were detected,which ensure the high removal efficiency of TN in the systems.

关键词： Aerobic granular sludge(AGS)Salinity Nutrient removal Extracellular polymeric substances(EPS) Microbial community

Mechanisms behind the surprising observation of supra-thermal ions in NIF’s fusion burning plasmas

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Science Bulletin 2025年第3期70卷 359-364页

作者： Yuhan Xue dong Wu Jie Zhang Key Laboratory for Laser Plasmas and Department of Physics and Astronomy Collaborative Innovation Center of IFSA(CICIFSA)Shanghai Jiao Tong UniversityShanghai 200240China Institute of Physics Chinese Academy of SciencesBeijing 100190China

Although ignition had been achieved at the National Ignition Facility(NIF),recent observations of the experiments indicate novel physics that beyond theoretical predictions emerge,e.g.,the neutron analysis of experiments has revealed deviations from the Maxwellian distributions in ion relative kinetic energies of burning plasmas,with the surprising emergence of supra-thermal deuterium and tritium(DT)ions that fall outside the predictions of macroscopic statistical hydrodynamic *** our newly developed hybrid-particle-in-cell code,incorporating the newly-proposed model of large-angle collisions,we infer that that this could be attributed to the increased significance of large-angle collisions among DT ions andα-particles in the burning *** and unprecedented kinetic investigations into the implications of large-angle collisions in the burning plasma have yielded several key findings,including an ignition moment promotion by~10 ps,the presence of supra-thermal ions below an energy threshold,and approximately twice the expected deposition ofα-particles *** rationality of our findings is confirmed through the congruency between the neutron spectral moment analyses conducted by the NIF and our kinetic simulations,both highlighting progressively widening disparities between neutron spectral moment analyses and hydrodynamics predictions,which becomes more pronounced as the yield *** kinetic simulations with large-angle collisions not only provide novel insights for experiment interpretation but also open new research opportunities for the largely unexplored regime of the nuclear burning plasmas,which are distinguished by their exceptionally high energy densities and hold immense potential for illuminating the intricate physics that underpins the evolution of the early universe.

关键词： lon kinetics Supra-thermal ions Large-angle collisions Non-equilibrium ignition Inertial confinement fusion Burning plasmas

Permutation orbifolds of vertex operator superalgebras and associative algebras

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Science China Mathematics 2025年第1期68卷 19-38页

作者： Chongying dong Feng Xu Nina Yu Department of Mathematics University of California at Santa CruzSanta CruzCA 95064USA Department of Mathematics Huzhou UniversityHuzhou 313000 China Department of Mathematics University of California at RiversideRiversideCA 92521USA School of Mathematical Sciences Xiamen UniversityXiamen 361005China

Let V be a vertex operator superalgebra and g=(12···k)be a k-cycle which is viewed as an automorphism of the tensor product vertex operator superalgebra V^(■k).In this paper,we construct an explicit isomorphism from A_(g)(V^(■k))to A(V)if k is odd and to Aσ(V)if k is even whereσis the canonical automorphism of V of order 2 determined by the superspace structure of *** recover previous results by Barron(2016)and Barron and Vander Werf(2014)that there is a one-to-one correspondence between irreducible g-twisted V^(■k)-modules and irreducible V-modules(***σ-twisted V-modules)when k is odd(***).This explicit isomorphism is expected to be useful in our further study on the Zhu algebra of the fixed point subalgebra.

关键词： permutation orbifold vertex operator superalgebra Zhu algebra

Temperature-sensitive Micelles as Artificial Chaperones for Insulin Protection

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Chinese Journal of Polymer Science 2025年第2期43卷 350-359页

作者： Jia-Wen Chen Yan Xiao Mei-dong Lang Shanghai Key Laboratory of Advanced Polymeric Materials Key Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and TechnologyShanghai200237China

Insulin is an essential and versatile protein taking part in the control of blood glucose levels and protein ***,under prolonged storage or high temperature stress,insulin tends to unfold and aggregate into toxic amyloid fibrils,leading to loss of physiological *** by natural chaperones,a series of temperature-sensitive polycaprolactone-based micelles were designed to prevent insulin from *** micelles were fabricated through the self-assembly of amphiphilic copolymers of methoxy poly(ethylene glycol)-poly(4-diethylformamide caprolactone-co-caprolactone)(mPEG_(17)-P(DECL-co-CL)),which had a regular spherical morphology with particle sizes of about 100 *** addition,the lower critical solution temperature(LCST)of the micelles could be tuned to 9 and 29℃by changing the ratio of DECL to *** from the temperature-sensitivity of DECL segment,the binding ability of micelles to insulin could be modulated by changing the *** LCST,micelles effectively inhibited insulin aggregation and protected it from thermal inactivation due to the strong binding ability between the hydrophobic segment DECL and *** LCST,DECL segment returned to hydrophilic and bound weakly with insulin,leading to the release of insulin and assisting in its recovery of secondary ***,these temperature-sensitive micelles provided an effective strategy for insulin protection.

关键词： Temperature-sensitive Insulin Micelles Chaperones

Occurrence of phthalate esters in the yellow and Yangtze rivers of china:Risk assessment and source apportionment

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Journal of Environmental Sciences 2025年第3期149卷 628-637页

作者： Qinkui Miao Wenxiang Ji Huiyu dong Ying Zhang College of Environmental Science and Engineering Nankai UniversityTianjin 300350China Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

Phthalate esters(PAEs),recognized as endocrine disruptors,are released into the environment during usage,thereby exerting adverse ecological *** study investigates the occurrence,sources,and risk assessment of PAEs in surface water obtained from 36 sampling points within the Yellow River and Yangtze River *** total concentration of PAEs in the Yellow River spans from124.5 to 836.5 ng/L,with Dimethyl phthalate(DMP)(75.4±102.7 ng/L)and Diisobutyl phthalate(DiBP)(263.4±103.1 ng/L)emerging as the predominant *** exhibit a pattern of upstream(512.9±202.1 ng/L)>midstream(344.5±135.3 ng/L)>downstream(177.8±46.7 ng/L).In the Yangtze River,the total concentration ranges from 81.9 to 441.6 ng/L,with DMP(46.1±23.4 ng/L),Diethyl phthalate(DEP)(93.3±45.2 ng/L),and DiBP(174.2±67.6 ng/L)as the primary *** levels follow a midstream(324.8±107.3 ng/L)>upstream(200.8±51.8 ng/L)>downstream(165.8±71.6 ng/L)*** should be directed towards the moderate ecological risks of DiBP in the upstream of HH,and both the upstream and midstream of CJ need consideration for the moderate ecological risks associated with Di-n-octyl phthalate(DNOP).Conversely,in other regions,the associated risk with PAEs is either low or *** main source of PAEs in Yellow River is attributed to the release of construction land,while in the Yangtze River Basin,it stems from the accumulation of pollutants in lakes and forests discharged into the *** findings are instrumental for pinpointing sources of PAEs pollution and formulating control strategies in the Yellow and Yangtze Rivers,providing valuable insights for global PAEs research in other major rivers.

关键词： Phthalates Spatial variation Potential sources Risk assessment