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World Journal of Clinical Cases 2025年第3期13卷 42-49页

作者： Na Li Yue-Yue Ren Ying Tang Qi Yang tian-tian Meng Song Li Jing Zhang Stomatological Hospital and College Anhui Medical UniversityHefei 230032Anhui ProvinceChina Department of Endodontics The Affiliated Stomatological Hospital of Xuzhou Medical UniversityXuzhou 221000Jiangsu ProvinceChina

BACKGROUND Complicated crown–root fracture (CRF) involves severe injury to the crown, root,and pulp, and may be accompanied by multiple root fractures. The loss of a toothhas lifelong consequences for children and teenagers, but the maintenance of pulphealth and the calcific healing of multiple root fractures are rarely reported in *** SUMMARY This case reports healing of a permanent tooth with complicated crown–root andadditional root fractures, in which pulp health was maintained. A 10-year-old girlfell and fractured the root of her maxillary left central incisor at the cervical *** the coronal fragment was repositioned, the tooth was splinted until thetooth was no longer mobile, 2 years later. Eight years after treatment, the toothhas remained asymptomatic with vital pulp and localized gingival ***-beam computed tomography revealed not only calcified healing of the CRFbut also spontaneous healing in an additional undiagnosed root fracture. Thefracture line on the enamel could not be healed by hard tissue and formed agroove in the cervical crown. It was speculated that the groove was related to thelocalized gingival *** This case provides a clinical perspective of the treatment of a tooth with acomplicated CRF and an additional root fracture.

关键词： Complicated crown-root fracture Multiple root fracture Spontaneous healing Cone-beam computed tomography Long-term follow-up Case report

长三角区域新质生产力发展水平、区域差异与时空演变特征

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经济问题 2025年第1期 113-123页

作者：阮素梅邵恬恬安徽财经大学金融学院安徽蚌埠233000

发展新质生产力,是进一步全面深化改革和推进中国式现代化的必然要求。以长三角“一市三省”为研究对象,基于2010—2023年的面板数据,对长三角区域省(市)新质生产力发展水平、变化趋势以及区域差异等进行了测度与分析。研究发现:第一,... 详细信息

发展新质生产力,是进一步全面深化改革和推进中国式现代化的必然要求。以长三角“一市三省”为研究对象,基于2010—2023年的面板数据,对长三角区域省(市)新质生产力发展水平、变化趋势以及区域差异等进行了测度与分析。研究发现:第一,长三角区域新质生产力发展水平整体呈上升趋势,但区域差异较大,地区间发展不平衡现象明显。第二,新质劳动资料对长三角区域新质生产力的贡献最为突出,其次是新质劳动者和新质劳动对象;上海市新质劳动对象的贡献最高,江苏省新质劳动者的贡献占比较大,浙江省新质劳动资料的贡献则更加突出,而安徽省虽没有突出优势,但其新质生产力增长率最高。第三,长三角区域新质生产力发展水平呈极化现象,且江苏省、浙江省、安徽省内部存在新质生产力发展水平较高的城市,省内发展不均衡;从时空动态演进特征看,长三角区域新质生产力不存在“跨越式”发展,但存在“俱乐部收敛”现象。该研究能够为实现长三角区域协同发展,尤其为培育和实现安徽省新质生产力和经济高质量发展提供实践依据和经验借鉴。

关键词：新质生产力长三角区域时空动态演进

Multivariate synergy for heightening ionic HOF robustness and proton conductivity

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Science China Chemistry 2025年

作者： Xiang-tian Bai Li-Hui Cao Xu-Yong Chen Jia-Yu Wang Zi-Ye Zhou Shaanxi Key Laboratory of Chemical Additives for Industry College of Chemistry and Chemical EngineeringShaanxi University of Science and Technology

Multicomponent crystalline materials construct more complex and diversified structures with different combinations and modes,which expands the material structure space and application *** this work,we have successfully synthesized two twocomponent ionic hydrogen-bonded organic frameworks （iHOF-32 and iHOF-33） and a three-component iHOF （iHOF-34）.Guanidine hydrochloride which is rich in N and H and has a short chain length strengthens the hydrogen bonding network of iHOF,thereby aiding in the efficient migration of *** rigid architecture of 1,1'-diamino-4,4'-bipyridine diiodide furnishes additional scaffolding for the iHOFs and enhances its robustness under harsh ***-34 accomplishes the combination of the ultra-high proton conductivity of iHOF-32 and the robustness of iHOF-33 by the synergistic interaction among the three components of *** addition,iHOF-34 was fabricated as a composite membrane with a peak proton conductivity of 1.55×10-1S cm-1,which is 3.8 times higher than that of recast Nafion,and has extensive potential in fuel *** self-assembly strategy of multicomponent HOFs opens up new avenues for constructing diverse structures while promising new opportunities for applications in the fields of proton conduction and energy storage.

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The Dynamical Casimir Effect versus Collective Excitations in Atom Ensemble

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Chinese Physics Letters 2011年第6期28卷 118-121页

作者： ZHANG Xue ZHENG tai-Yu tian tian PAN Shu-Mei Institute of Theoretical Physics Northeast Normal UniversityChangchun 130024

The Dynamical Casimir effect and collective excitations in atom ensemble are investigated in a non-stationary *** results show that the dynamical Casimir effect leads to the collective excitations of atom ensemble due to absorption of the created *** remarkable feature indicates that the atom ensemble can serve as a detector for the process of photon production in a non-stationary *** by measuring the collective excitations of the atom ensemble,the dynamical Casimir effect can indirectly be verified.

关键词： collective ensemble excitation

Machine learning method to predict dynamic compressive response of concrete-like material at high strain rates

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Defence Technology（防务技术） 2023年第5期23卷 100-111页

作者： Xu Long Ming-hui Mao tian-xiong Su Yu-tai Su Meng-ke tian School of Mechanics Civil Engineering and ArchitectureNorthwestern Polytechnical UniversityXi'anChina School of Civil Engineering Liaoning Petrochemical UniversityFushunChina Beijing Microelectronics Technology Institute BeijingChina

Machine learning(ML)methods with good applicability to complex and highly nonlinear sequences have been attracting much attention in recent years for predictions of complicated mechanical properties of various *** one of the widely known ML methods,back-propagation(BP)neural networks with and without optimization by genetic algorithm(GA)are also established for comparisons of time cost and prediction *** the aim to further increase the prediction accuracy and efficiency,this paper proposes a long short-term memory(LSTM)networks model to predict the dynamic compressive performance of concrete-like materials at high strain *** explicit analysis is performed in the finite element(FE)software ABAQUS to simulate various waveforms in the split Hopkinson pressure bar(SHPB)experiments by applying different stress waves in the incident *** FE simulation accuracy is validated against SHPB experimental results from the viewpoint of dynamic increase *** order to cover more extensive loading scenarios,60 sets of FE simulations are conducted in this paper to generate three kinds of waveforms in the incident and transmission bars of SHPB *** training the proposed three networks,the nonlinear mapping relations can be reasonably established between incident,reflect,and transmission *** measures are used to quantify the network prediction accuracy,confirming that the predicted stress-strain curves of concrete-like materials at high strain rates by the proposed networks agree sufficiently with those by FE *** is found that compared with BP network,the GA-BP network can effectively stabilize the network structure,indicating that the GA optimization improves the prediction accuracy of the SHPB dynamic responses by performing the crossover and mutation operations of weights and thresholds in the original BP *** eliminating the long-time dependencies,the proposed LSTM network achieves better results than the BP

关键词： Deep learning LSTM network GA-BP network Dynamic behaviour Concrete-like materials

Clinical effects of electroacupuncture stimulation on treatment of stroke-induced limb spasm

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Neural Regeneration Research 2008年第1期3卷 89-93页

作者： Yang tian Lianguo kang Department of Rehabifitation Jilin Academic Institute of Traditional Chinese Medicine Changchun 130021 Jifin Province China Department of Surgery Creighton University Omaha of Nebraska 68131 USA

OBJECTIVE： To summarize the development of electroacupuncture stimulation in the treatment of stroke-induced limb spasm, to provide research possibilities or clinical development, and to clarify the mechanism and therapeutic effects of electroacupuncture stimulation. DATA SOURCES： Articles relating to therapeutic effects of electroacupuncture stimulation on treatment of stroke-induced limb spasm, as well as clinical studies （which are not limited to age, sex and race）, were retrieved from the China Journal Fulltext Database from January 2000 to December 2007. The key words were stroke, apoplexy, spasm, and electroacupuncture in Chinese. Other articles were obtained from specific journals or books. STUDY SELECTION： Data were first selected by title and abstract. Clinical and rehabilitative studies relating to the effects of electroacupuncture and acupuncture on the treatment of stroke-induced limb spasm were included. Clinical studies related to the rehabilitative treatment of limb spasm were excluded, unless the effects of electroacupuncture stimulation were recorded. DATA EXTRACTION： A total of 338 references were collected; however, 295 of these were excluded. Therefore, 43 articles were analyzed, comprising 40 in Chinese and 3 in English. DATA SYNTHESIS： At present, acupuncture is widely used at home to treat stroke-induced limb spasm; however, acupuncture at different acupoints might cause different clinical effects. Electroacupuncture, which is characterized by analgesia and relief of spasm, can preclude inflammatory edema, improve blood circulation and blood viscosity, inhibit platelet aggregation and adherence, relieve formation of atheromatous plaque in tunica intima of artery, and resist cerebral anoxia, so as to relieve stroke-induced limb spasm. Meanwhile, electroacupuncture combined with rehabilitation can effectively decrease the degree of spasm and improve motor function. CONCLUSION： Acupuncture and moxibustion therapy are superior in the rehabilitativ

关键词： cerebrovascular damage quadriplegia electroacupuncture acupuncture therapy

Experimental demonstration of 220-GHz terahertz signals wireless transmission over 4.6 km

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Science China(Information Sciences) 2025年第1期68卷 386-388页

作者： Yi WEI Jianjun YU Mingxu WANG Xiongwei YANG Qiutong ZHANG Jingwen TAN Bing ZHANG Ying WU Yang HAN Peng tian Wen ZHOU Kaihui WANG Feng ZHAO State Key Laboratory of ASIC and System Key Laboratory for Information Science of Electromagnetic Waves (MoE)School of Information Science and Technology Fudan University School of Electronic Engineering Xi'an University of Posts and Telecommunications

The advancement of terahertz (THz) communication technology drives the evolution of wireless communication systems,offering novel pathways and technical means for the development of future 6G communication *** wireless communication systems are often constrained by bandwidth limitations of electronic devices in high frequency ***,THz communication technology leverages the characteristics of electromagnetic waves to transcend these limitations,enabling communication athigher frequencies and wider bandwidths.

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Sea cucumber intestinal hydrolysates alleviate insulin resistance through regulating IRS1/PI3K/AKT signaling pathway mediated by glutamine metabolism in high-fat and high-sucrose diet-induced mice

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Food Science and Human Wellness 2025年

作者： Meng Wang Man Yao Hao Yue Yingying tian Zifang Zhao Changhu Xue tiantian Zhang Yuming Wang SKL of Marine Food Processing & Safety Control， College of Food Science and Engineering， Ocean University of China Institute of Food & Nutrition Science and Technology， Shandong Academy of Agricultural Sciences Hainan Huayan Collagen Technology Co. Sanya Institute of Oceanography， Ocean University of China

It has been reported that sea cucumber intestine hydrolysates (SCIH) could promote glutamine metabolism in mice， while there is a close connection between glutamine metabolism and insulin sensitivity. However， the effect of SCIH on insulin resistance is still unclear. The results showed that SCIH hydrolyzed by flavor protease had significant activity using the insulin-induced HepG2 cell model. Animal experiments exhibited that SCIH supplementation significantly improved the high-fat and high-sucrose diet-induced impaired glucose tolerance， reduced fasting serum glucose and glycosylated serum protein. Besides， SCIH ameliorated islet vacuolization and decreased the pancreas TNF-α and IL-6 by 32.1% and 36.2%， respectively. Immunofluorescence staining results showed that SCIH promoted insulin secretion. Interestingly， SCIH significantly increased the liver glutamine levels and upregulated the expression of glutaminase1 (GLS1) and glutamate dehydrogenase 1 (GLUD1). Furthermore， SCIH increased liver acetyl-CoA levels to enhance histone acetylation and activate the gene transcription and translation on glucose metabolism-related IRS/PI3K/AKT signaling pathway， thereby attenuating insulin resistance. The present findings proposed the potential value for developing functional foods in SCIH utilization.

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Intelligent reflecting surfaces-assisted millimeter wave communication:Channel estimation based on deep learning

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The Journal of China Universities of Posts and Telecommunications 2024年第1期31卷 49-56页

作者： kang Xiaofei Wang tian Liang Xian College of Communication and Information Engineering Xi'an University of Science and TechnologyXi'an 710600China

In response to the challenge posed by the complexity of the system and the difficulty in obtaining accurate channel state information(CSI)for millimeter wave communication assisted by intelligent reflecting surfaces(IRS),we propose a deep learning-based channel estimation *** proposed scheme employs a hybrid active/passive IRS architecture,wherein the least square(LS)algorithm is initially utilized to acquire the channel estimate from the active ***,this estimation is interpolated to obtain a preliminary channel estimation and ultimately refined into an accurate estimate of the channel using the channel super-resolution convolutional neural network(Chan-SRCNN)deep learning *** simulation results demonstrate that the proposed scheme surpasses LS,orthogonal matching pursuit(OMP),synchronous OMP(SOMP),and deep neural network(DNN)channel estimation algorithms in terms of normalized mean squared error(NMSE)performance,thereby validating the feasibility of the proposed approach.

关键词： intelligent reflecting surface millimeter wave channel estimation deep learning

特殊高浓度污水电化学氧化预处理技术研究及应用

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石油炼制与化工 2025年第1期56卷 146-153页

作者：田颖中科(广东)炼化有限公司广东湛江524012

针对某石化企业特殊高浓度污水储存及处理的安全环保问题,开展了以电化学氧化为主的预处理试验研究。小试试验确定了阳极和阴极材料,以及电解参数。侧线试验结果表明:在多种配比来水情况下,采用以电化学氧化为主的预处理技术时,氨氮去... 详细信息

针对某石化企业特殊高浓度污水储存及处理的安全环保问题,开展了以电化学氧化为主的预处理试验研究。小试试验确定了阳极和阴极材料,以及电解参数。侧线试验结果表明:在多种配比来水情况下,采用以电化学氧化为主的预处理技术时,氨氮去除率大于93%,化学需氧量(COD)降低率大于45%。在分析、解决了工程化放大的难题后,工业化装置稳定运行7个月,在来水稳定的情况下,出水氨氮质量浓度小于35 mg/L,COD小于1000 mg/L,满足预处理出水要求。该研究解决了高浓度储存废水处理的难题。

关键词：特殊高浓度污水电化学氧化预处理技术化学需氧量氨氮