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An attention-based teacher-student model for multivariate short-term landslide displacement prediction incorporating weather forecast data

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Journal of Mountain Science 2024年第8期21卷 2739-2753页

作者： CHEN jun HU Wang ZHANG Yu QIU Hongzhi WANG Renchao Sichuan Artificial Intelligence Research Institute Yibin 644000China School of Computer Science and Engineering University of Electronic Science and Technology of ChinaChengdu 611731China School of Architecture and Civil Engineering Chengdu UniversityChengdu 610106China

Predicting the displacement of landslide is of utmost practical importance as the landslide can pose serious threats to both human life and ***,traditional methods have the limitation of random selection in sliding window selection and seldom incorporate weather forecast data for displacement prediction,while a single structural model cannot handle input sequences of different lengths at the same *** order to solve these limitations,in this study,a new approach is proposed that utilizes weather forecast data and incorporates the maximum information coefficient(MIC),long short-term memory network(LSTM),and attention mechanism to establish a teacher-student coupling model with parallel structure for short-term landslide displacement *** MIC,a suitable input sequence length is selected for the LSTM *** investigate the influence of rainfall on landslides during different seasons,a parallel teacher-student coupling model is developed that is able to learn sequential information from various time series of different *** teacher model learns sequence information from rainfall intensity time series while incorporating reliable short-term weather forecast data from platforms such as China Meteorological Administration(CMA)and Reliable Prognosis(https://***)to improve the model’s expression capability,and the student model learns sequence information from other time *** attention module is then designed to integrate different sequence information to derive a context vector,representing seasonal temporal attention ***,the predicted displacement is obtained through a linear *** proposed method demonstrates superior prediction accuracies,surpassing those of the support vector machine(SVM),LSTM,recurrent neural network(RNN),temporal convolutional network(TCN),and LSTM-Attention *** achieves a mean absolute error(MAE)of 0.072 mm,root mean square error(RMSE)of 0.096 mm,and pearson correlation coefficients(PC

关键词： Landslide prediction MIC LSTM Attention mechanism Teacher Student model Prediction stability and interpretability

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Inclusions modification by rare earth in steel and the resulting properties: A review

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Journal of Rare Earths 2024年第3期42卷 431-445,I0001页

作者： Xiaoqiang Wang Zhiwei Wu Bing Li Wenxiong Chen jun Zhang Jian Mao College of Materials Science and Engineering Sichuan UniversityChengdu610065China Chengdu Advanced Metal Materials Industry Technology Research Institute Co. Ltd.Chengdu610303China State Key Laboratory of Metal Material for Marine Equipment and Application Anshan114009China

Rare earth(RE) elements are excellent modifiers for non-metallic inclusions that inevitably appear in steel and affect steel properties. This paper reviews the research status of inclusions modification by RE elements and the changes it cause on steel properties. First, the inclusion changes caused by RE modification are described. Generally, after adding pure RE, the main evolution of inclusions occurs as M →M + RE-Al-O → RE-Al-O + RE_(2)O_(2)S → RE_(2)O_(2)S + RE—S/RE_(2)O_(2)S + RE-O with an increase in the RE content(M represents the inclusions before RE addition). The type of final inclusion obtained after RE modification is related to the relative contents of S and O in the steel. Moreover, fine, regular, and uniformly distributed inclusions can be obtained with appropriate RE addition. However, the effectiveness of inclusions modification by adding both RE and non-RE elements is closely related to the order of their addition. Second, the applications and advantages of thermodynamic calculations in the study of RE-modified inclusions are introduced. Third, the changes in the corrosion resistance, impact properties,and other properties of steel caused by the modification of inclusions by RE are reviewed. Finally, the perspectives and trends of inclusions modified by RE elements in the steel industry are presented.

关键词： Rare earths Inclusions Modification Thermodynamic calculation Properties change

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Phosphorylated cellulose nanofibers establishing reliable ion-sieving barriers for durable lithium-sulfur batteries

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Journal of Energy Chemistry 2024年第5期92卷 619-628页

作者： Zihao Li Pengsen Qian Hongyang Li He Xiao jun Chen Gaoran Li School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing 210094JiangsuChina National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials Fuzhou 350108FujianChina

The shuttle effect is among the most characteristic and formidable challenges in the pursuit of high-performance lithium-sulfur(Li-S)***,phosphorylated cellulose nanofibers(pCNF)are intentionally engineered to establish an ion-sieving barrier against polysulfide shuttling and thereby improve battery *** phosphorylation,involving the grafting of phosphate groups onto the cellulose backbone,imparts an exceptional electronegativity that repels the polysulfide anions from penetrating through the ***,the electrolyte wettability and Li^(+)transfer can be significantly promoted by the polar nature of pCNF and the facile Li^(+)*** such,rational ion management is realized,contributing to enhanced reversibility in both sulfur and lithium *** a result,Li-S cells equipped with the self-standing pCNF separator demonstrate outstanding long-term cyclability with a minimum fading rate of 0.013%per cycle over 1000 cycles at 1 C,and a decent areal capacity of 5.37 mA h cm^(-2) even under elevated sulfur loading of 5.0 mg cm^(-2) and limited electrolyte of 6.0 mL g^(-1).This work provides a facile and effective pathway toward the well-tamed shuttle effect and highly durable Li-S batteries.

关键词： Lithium-sulfur batteries Cellulose Phosphorylation Ion-sieving Shuttle effect

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苏轼对韩国汉诗中赤壁景观书写的影响

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中央民族大学学报（哲学社会科学版） 2024年第3期51卷 113-122页

作者：阮怡四川师范大学三苏研究院/文学院四川成都610068

赤壁是湖北省东南部的一处地理形胜,因赤壁之战而声名鹊起,引起历代文人吟咏,他们常以赤壁为媒介,拈出三国时期的历史来追叙咏叹。宋代苏轼贬谪黄州,写下了传诵千古的《赤壁赋》,赋予了赤壁这一景观全新的意义。在朝鲜朝前期,崇苏之风盛... 详细信息

赤壁是湖北省东南部的一处地理形胜,因赤壁之战而声名鹊起,引起历代文人吟咏,他们常以赤壁为媒介,拈出三国时期的历史来追叙咏叹。宋代苏轼贬谪黄州,写下了传诵千古的《赤壁赋》,赋予了赤壁这一景观全新的意义。在朝鲜朝前期,崇苏之风盛行,《赤壁赋》流传甚广,当时的文人将自身所处环境中与赤壁地理形貌类似的景观视为“赤壁”,将黄州赤壁移入自身所处的地方,赤壁成为一处流动的风景。在历代韩国文人的吟咏中,相关的文化文本构筑起了赤壁景观的想象空间,赤壁不仅仅是山水相得益彰的一处形胜之地,更是承载苏子精神的物质实体,体现了韩国文人对苏轼人格以及才华的崇拜景仰之情。韩国文人泛舟游“赤壁”亦是借此寄托自身的情感,在诗歌中他们视“赤壁”之游是游赏之至乐,“赤壁”成为韩国失意文人的世外桃源,表现出浓厚的归隐情绪。透过韩国文人的赤壁景观书写,可见苏轼这一文学典范对韩国文学产生了重要影响,彰显了中华文化在东亚中华文化圈中的意义。

关键词：赤壁景观在地化文化记忆归隐

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Subarachnoid hemorrhage misdiagnosed as acute coronary syndrome leading to catastrophic neurologic injury: A case report

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World Journal of Clinical Cases 2024年第1期12卷 148-156页

作者： jun-Ming Lin Xiao-jun Yuan Guang Li Xin-Rong Gan Wen-Hua Xu Department of Orthopaedic Surgery People's Hospital of Yichun CityYichun 336000Jiangxi ProvinceChina

BACKGROUND Elevated levels of cardiac troponin and abnormal electrocardiogram changes are the primary basis for clinical diagnosis of acute coronary syndrome(ACS).Troponin levels in ACS patients can often be more than 50 times the upper reference *** patients with subarachnoid hemorrhage(SAH)also show electrocardiogram abnormalities,myocardial damage,and elevated cardiac *** ACS patients,patients with SAH only have a slight increase in troponin,and the use of anticoagulants or antiplatelet drugs is *** of the opposite treatment modalities,it is essential for clinicians to distinguish between SAH and *** SUMMARY A 56-year-old female patient was admitted to the emergency department at night with a sudden onset of severe back *** final diagnosis was intraspinal hematoma in the thoracic *** performed an emergency thoracic spinal canal hematoma evacuation procedure with the assistance of a ***,diffuse hematoma formation was found in the T7-T10 spinal canal,and no obvious spinal vascular malformation changes were *** head and spinal magnetic resonance imaging(MRI)showed a small amount of SAH in the skull,no obvious abnormalities in the cervical and thoracic spinal canals,and no abnormal signals in the lumbar spinal ***-dominal aorta computed tomography angiography showed no vascular *** motor system examination showed Medical Research Council Scale grade 1/5 strength in both lower extremities,and the patient experienced decreased sensation below the T12 rib margin and reported a Visual Analog Scale score of *** Extremely elevated troponin levels(more than 50 times the normal range)are not unique to coronary artery *** can also result in extremely high troponin levels,and antiplatelet drugs are contraindicated in such *** MRI can help in the early differential diagnosis,as a misdiagnosis of ACS can lead to catastroph

关键词： Acute coronary syndrome Spontaneous spinal subdural hematoma Misdiagnosis Catastrophic neurological injury Case report

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Evaluation of left ventricular systolic function in type 2 diabetes mellitus patients with and without peripheral vascular disease

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World Journal of Diabetes 2024年第6期15卷 1280-1290页

作者： Guang-An Li jun Huang Li Fan Department of Echocardiography The Affiliated Changzhou Second People’s Hospital with Nanjing Medical UniversityChangzhou 213000Jiangsu ProvinceChina

BACKGROUND Peripheral vascular disease(PVD)is a common complication of type 2 diabetes mellitus(T2DM).Patients with T2DM have twice the risk of PVD as nondiabetic *** To evaluate left ventricular(LV)systolic function by layer-specific global longitudinal strain(GLS)and peak strain dispersion(PSD)in T2DM patients with and without *** Sixty-five T2DM patients without PVD,57 T2DM patients with PVD and 63 normal controls were enrolled in the ***-specific GLS[GLS of the epimyocardium(GLSepi),GLS of the middle myocardium(GLSmid)and GLS of the endocardium(GLSendo)]and PSD were *** operating characteristic(ROC)analysis was performed to calculate the sensitivity and specificity of LV systolic dysfunction in T2DM patients with *** calculated Pearson’s correlation coefficients between biochemical data,echocardiographic characteristics,and layer-specific GLS and *** There were significant differences in GLSepi,GLSmid and GLSendo between normal controls,T2DM patients without PVD and T2DM patients with PVD(PT2DM patients without PVD>T2DM patients with PVD in the absolute value of GLS(Pcantly between the three groups,and the trend ranking was as follows:normal controlscan be used to detect LV systolic dysfunction accurately and conveniently in T2DM patients with or without PVD.

关键词： Type 2 diabetes mellitus Peripheral vascular disease Speckle tracking echocardiography Global longitudinal strain Peak strain dispersion

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Diagnosis and treatment of biliary mucinous cystic neoplasms: A single-center experience

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Hepatobiliary & Pancreatic Diseases International 2024年第5期23卷 495-501页

作者： jun-jun Jia Ya-Fen Cheng Mei-Bao Feng Li Liu Ming-Qi Shuai Xiao-Dong Shen Xiao-Feng Tang Shu-Sen Zheng Division of Hepatobiliary and Pancreatic Surgery Department of Surgerythe First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Department of International Healthcare Center the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Department of Pathology the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Department of Library the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China

Background: Biliary mucinous cystic neoplasms(BMCNs) are rare hepatobiliary cystic tumors, which can be divided into noninvasive and invasive types. This study aimed to investigate the diagnosis, treatment, and prognosis of BMCNs in a large single center. Methods: We analyzed 49 patients with BMCNs confirmed by postoperative pathology at the First Afflliated Hospital, Zhejiang University School of Medicine between January 2007 and December 2021. Results: Among the 49 patients, 37 were female(75.5%), and the average age was 57.04 years. Common symptoms included abdominal discomfort, jaundice and fever, while 22 patients(44.9%) had no symptoms. Serum carbohydrate antigen(CA) 19-9 and CA125 concentrations were elevated in 34.8% and 19.6% of patients, respectively. Forty-eight patients had tumors in the intrahepatic bile ducts and only one had a tumor in the extrahepatic bile duct. Forty-eight patients with noninvasive intrahepatic BMCNs were further analyzed in terms of pathological features: 34(70.8%) had low-grade intraepithelial neoplasms(LGINs), and 14(29.2%) had high-grade intraepithelial neoplasms(HGINs). The potential immunohistochemical markers of BMCNs were cytokeratin(CK) 19, CK7, estrogen receptor and progesterone receptor. Follow-up data for 37 patients with intrahepatic BMCNs were obtained. The median overall survival(OS) of BMCNs was not reached. The longest survival time was 137 *** 5-and 10-year OS rates were 100% and 85.4%, respectively. The 5-and 10-year recurrence-free survival(RFS) rates were 93.9% and 80.2%, respectively. Conclusions: BMCNs are rare cystic neoplasms that commonly occur in middle-aged females. BMCNs can only be diagnosed and classified by postoperative pathology, as there are no specific clinical presentations, serological indicators or imaging modalities for preoperative diagnosis. Complete surgical resection is necessary for BMCNs, and the postoperative prognosis is favorable.

关键词： Biliary mucinous cystic neoplasms Low-grade intraepithelial neoplasms High-grade intraepithelial neoplasms Overall survival Recurrence-free survival

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Structure design and coordinated motion analysis of bionic crocodile robot

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Biomimetic Intelligence & Robotics 2024年第2期4卷 50-62页

作者： jun Wang Jingya Zheng Yuhang Zhao Kai Yang School of Information and Control Engineering China University of Mining and TechnologyXuzhou 221116China

Crocodiles,one of the oldest and most resilient species on Earth,have demonstrated remarkable locomotor abilities both on land and in water,evolving over millennia to adapt to diverse *** this study,we draw inspiration from crocodiles and design a highly biomimetic crocodile robot equipped with multiple degrees of freedom and articulated trunk *** design is based on comprehensive analysis of the structural and motion characteristics of real *** bionic crocodile robot has a problem of limb-torso incoordination during *** solve this problem,we used the D-H method for both forward and inverse kinematics analysis of the robot's legs and *** a series of simulation experiments,we investigated the robot's motion stability,fault tolerance,and adaptability to environments in two motor patterns:with and without spine and tail *** experimental results show that the bionic crocodile robot exhibits superior motion performance when the spine and tail cooperate with the *** study not only demonstrates the potential of biomimicry in robotics but also underscores the significance of understanding how nature's designs can inform and enhance technological innovations.

关键词： Bionic crocodile robot Kinematic modeling Motion simulation Multipart coordination

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Therapeutic effect and psychological impact of aspirin plus edaravone on patients with cerebral infarction

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World Journal of Psychiatry 2024年第5期14卷 644-652页

作者： Tian-Shu Wang Li-jun Jing Department of Neurology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina

BACKGROUND Cerebral infarction(CI)is characterized by a high prevalence,disability,and *** or improper treatment greatly affects patient *** To explore the drug efficacy of aspirin plus edaravone and to explore their effect on quality of life(QOL),anxiety and depression in CI *** We retrospectively analyzed the records of 124 CI patients treated between june 2019 and February 2021 who were assigned to an observation group(OG)(combination therapy of aspirin and edaravone,65 patients)or a control group(CG)(aspirin monotherapy,59 patients).The therapeutic effects,pre-and posttreatment National Institutes of Health Stroke Scale(NIHSS)scores,activities of daily living,degree of cognitive impairment,protein levels of glial fibrillary acidic protein(GFAP),neuron-specific enolase(NSE)and S-100B,occurrence of adverse reactions,and serum high-sensitivity C-reactive protein(hs-CRP),interleukin(IL)-6 and tumor necrosis factor(TNF)-αwere evaluated,detected and compared between the two ***,posttreatment QOL,anxiety,and depression were assessed by the Medical Outcomes Study 36-Item Short Form Health Survey Scale,Self-rating Depression Scale(SDS),and Self-rating Anxiety Scale(SAS),*** Compared with the CG,the OG had markedly better therapeutic effects,greater improvements in activities of daily living,and better alleviation in cognitive dysfunction after treatment,as well as lower posttreatment NIHSS scores and serum NSE,GFAP,S-100B,hs-CRP,IL-6,and TNF-αlevels;the OG was similar to the CG in terms of adverse reactions but was better than the CG in terms of posttreatment QOL;and the OG also had lower SDS and SAS scores than the CG after *** Aspirin plus edaravone had a good curative effect on *** can reverse cranial nerve damage in patients,improve neurological function and prognosis,and alleviate inflammation,anxiety,and depression;thus,it is considered safe and worthy of clinical application.

关键词： Aspirin Edaravone Cerebral infarction Efficacy Quality of life

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Systematic study of cluster radioactivity within the generalized liquid drop model

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Chinese Physics C 2024年第6期48卷 118-129页

作者：邓军刚程俊皓包小军张鸿飞 College of Science China Three Gorges UniversityYichang 443002China Center for Astronomy and Space Sciences China Three Gorges UniversityYichang 443002China Department of Physics National University of Defense TechnologyChangsha 410073China Department of Physics Collaborative Innovation Center for Quantum Effectsand Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of EducationHunan Normal UniversityChangsha 410081China School of Physics Xi'an Jiaotong UniversityXi'an 710049China

Cluster radioactivity is studied within the generalized liquid drop model(GLDM),in which the shell correction energy,pairing energy,and cluster preformation factor are *** calculations show significant improvements and can reproduce the experimental data within a factor of 8.04 after considering these physical *** addition,the systematic trend of the cluster preformation factors is discussed in terms of the N_(p)N_(n)scheme to study the influence of the valence proton-neutron interaction and shell effect on cluster *** is found that log10Pcis linearly related to N_(p)N_(n).This is in agreement with a recent study[*** et al.,***.C 108,014325(2023)],in which log10Pc,obtained using different theoretical models and treatment methods than those used in this study,also had a linear relationship with N_(p)N_(n).Combined with the work by Qi et al.,this study suggests that the linear relationship between log10Pcand N_(p)N_(n)is model-independent and both the shell effect and valence proton-neutron interaction play essential roles in cluster *** analytical formula is proposed to calculate the cluster preformation factor based on the N_(p)N_(n)*** addition,the cluster preformation factors and the cluster radioactivity half-lives of some heavy nuclei are predicted,which can provide a reference for future experiments.

关键词： cluster radioactivity cluster preformation factor shell effect generalized liquid drop model

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