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Lattice Boltzmann Method for Simulating the Temperature Jump and Velocity Slip in Microchannels

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Communications in Computational Physics 2007年第6期2卷 1125-1138页

作者： Lin zheng Bao-Chang Shi zhen-hua chai Department of Mathematics Huazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Coal Combustion Huazhong University of Science and TechnologyWuhan 430074China.

The velocity slip and temperature jump in micro-Couette flow are investigated with the lattice Boltzmann method(LBM).A new slip boundary condition with the non-equilibrium extrapolation scheme is used in a thermal lattice Boltzmann model(TLBM)where double distribution functions are used to simulate the velocity and the temperature fields in order to capture the velocity slip and the temperature jump of the wall *** simulated velocity and temperature profiles are in good agreement with the analytic results,which shows the suitability of the present model and the new boundary treatment for describing thermal microflows with viscous heat dissipation.

关键词： Lattice Boltzmann velocity slip temperature jump.

A lattice Boltzmann–cellular automaton study on dendrite growth with melt convection in solidification of ternary alloys

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Chinese Physics B 2018年第8期27卷 582-592页

作者： Dong-Ke Sun zhen-hua chai Qian Li Guang Lin School of Mechanical Engineering Southeast UniversityNanjing 211189China Open Project of State Key Laboratory of Advanced Special Steel Shanghai UniversityShanghai 2E0444China School of Mathematics and Statistics Huazhong University of Science and TechnologyWuhan 431）074China School of Materials Science and Engineering ＆ Materials Genome Institute Shanghai Uniwrsity Shanglmi 200444China Department of Mathematics School of Mechanical EngineeringPurdue UniversityVCesl LafityetteIV 47907USA

A lattice Boltzmann （LB）-cellular automaton （CA） model is employed to study the dendrite growth of A1-4.0 wt%Cu- 1.0 wt%Mg alloy. The effects of melt convection, solute diffusion, interface curvature, and preferred growth orientation are incorporated into the coupled model by coupling the LB-CA model and the CALPHAD-based phase equilibrium solver, PanEngine. The dendrite growth with single and multiple initial seeds was numerically studied under the conditions of pure diffusion and melt convection. Effects of initial seed number and melt convection strength were characterized by new- defined solidification and concentration entropies, The numerical result shows that the growth behavior of dendJ-ites, the final microstructure, and the micro-segregation are significantly influenced by melt convection during solidification of the ternary alloys. The proposed solidification and concentration entropies are useful characteristics bridging the solidification behavior and the microstructure evolution of alloys.

关键词： lattice Boltzmann dendritic growth numerical simulation melt convection

Cole-Hopf Transformation Based Lattice Boltzmann Model for One-dimensional Burgers' Equation

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Communications in Theoretical Physics 2018年第3期69卷 329-335页

作者： Xiao-Tong Qi Bao-Chang Shi zhen-hua chai School of Mathematics and Statistics Huazhong University of Science and TechnologyWuhan 430074China Hubei Key Laboratory of Engineering Modeling and Scientific Computing Huazhong University of Science and TechnologyWuhan 430074China

In this paper,we present a Cole-Hopf transformation based lattice Boltzmann(LB)model for solving one-dimensional Burgers'equation,and compared to available LB models,the effect of nonlinear convection term can be *** Chapman-Enskog analysis,it can be found that the converted diffusion equation based on the Cole-Hopf transformation can be recovered correctly from present LB *** numerical tests are also performed to validate the present LB model,and the numerical results show that,similar to previous LB models,the present model also has a second-order convergence rate in space,but it is more accurate than the previous ones.

关键词： Burgers'equation Cole-Hopf transformation lattice Boltzmann model

Local magnetic moment oscillation around an Anderson impurity on graphene

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 192-201页

作者： Shuai Li zhen Ma Jin-hua Gao School of Science Hebei University of Science and Technology School of Electronics and Information Zhengzhou University of Light Industry School of Physics and Wuhan National High Magnetic Field Center Huazhong University of Science and Technology

We theoretically investigate the spin resolved Friedel oscillation （FO） and quasiparticle interference （QPI） in graphene induced by an Anderson *** the impurity becomes magnetic,the resulted FO becomes spin dependent,which gives rise to a local magnetic moment oscillation with an envelop decaying as r-2in real space in the doping ***,at half filling,the electron density and local magnetic moment will not oscillate but decay as *** spin resolved FO has both sublattice and spin ***,the local magnetic moment decay at half filling only occurs at one sublattice of graphene,which is quite like the phenomenon observed in the STM experiment (***ález-Herrero et al.,Science 352,437 （2016）).We further give an analytic formula about such spin dependent FO based on the stationary phase ***,we study the interference of quasiparticles around the magnetic impurity by calculating the spin dependent Fourier-transformed local density of states （FT-LDOS）.Our work gives a comprehensive understanding about the local magnetic moment oscillation around an Anderson impurity on graphene.

关键词： Friedel oscillation local magnetic moment graphene Anderson impurity

Pretreatment red blood cell distribution width as a predictive marker for postoperative complications after laparoscopic pancreatoduodenectomy

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 143-157页

作者： Xian-Rang Cao Yin-Long Xu Jia-Wei chai Kai zheng Jun-Jie Kong Jun Liu Shun-zhen zheng Department of Liver Transplantation and Hepatobiliary Surgery Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250021Shandong ProvinceChina Department of Breast and Thyroid Surgery Shandong Provincial Maternal and Child Health Care HospitalJinan 250014Shandong ProvinceChina

BACKGROUND Red blood cell distribution width(RDW)is associated with the development and progression of various *** To explore the association between pretreatment RDW and short-term outcomes after laparoscopic pancreatoduodenectomy(LPD).METHODS A total of 804 consecutive patients who underwent LPD at our hospital between March 2017 and November 2021 were retrospectively *** between pretreatment RDW and clinicopathological characteristics and short-term outcomes were *** Patients with higher pretreatment RDW were older,had higher Eastern Cooperative Oncology Group scores and were associated with poorer short-term outcomes than those with normal *** pretreatment RDW was an independent risk factor for postoperative complications(POCs)(hazard ratio=2.973,95%confidence interval:2.032-4.350,P<0.001)and severe POCs of grade IIIa or higher(hazard ratio=3.138,95%confidence interval:2.042-4.824,P<0.001)based on the Clavien-Dino classification *** analysis showed that high pretreatment RDW was an independent risk factor for Clavien-Dino classi-fication grade IIIb or higher POCs,a comprehensive complication index score≥26.2,severe postoperative pancreatic fistula,severe bile leakage and severe *** pretreatment RDW was positively associated with the neutrophil-to-lymphocyte ratio and platelet-to-lymphocyte ratio and was negatively associated with albumin and the prognostic nutritional *** Pretreatment RDW was a special parameter for patients who underwent *** was associated with malnutrition,severe inflammatory status and poorer short-term *** could be a surrogate marker for nutritional and inflammatory status in identifying patients who were at high risk of developing POCs after LPD.

关键词： Biomarker Laparoscopic pancreatoduodenectomy Postoperative complication Red blood cell distribution width Short-term outcomes

Pathogenesis, diagnosis, and treatment of epilepsy: electromagnetic stimulation-mediated neuromodulation therapy and new technologies

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Neural Regeneration Research 2025年第4期20卷 917-935页

作者： Dian Jiao Lai Xu zhen Gu hua Yan Dingding Shen Xiaosong Gu Academy of Medical Engineering and Translational Medicine Tianjin UniversityTianjinChina Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province College of Pharmaceutical SciencesZhejiang UniversityHangzhouZhejiang ProvinceChina Affiliated Hospital of Nantong University NantongJiangsu ProvinceChina

Epilepsy is a severe,relapsing,and multifactorial neurological *** regarding the accurate diagnosis,prognosis,and in-depth pathogenesis are crucial for the precise and effective treatment of *** pathogenesis of epilepsy is complex and involves alterations in variables such as gene expression,protein expression,ion channel activity,energy metabolites,and gut microbiota *** results are lacking for conventional treatments for *** resection of lesions,drug therapy,and non-drug interventions are mainly used in clinical practice to treat pain associated with ***-pharmacological treatments,such as a ketogenic diet,gene therapy for nerve regeneration,and neural regulation,are currently areas of research *** review provides a comprehensive overview of the pathogenesis,diagnostic methods,and treatments of *** also elaborates on the theoretical basis,treatment modes,and effects of invasive nerve stimulation in neurotherapy,including percutaneous vagus nerve stimulation,deep brain electrical stimulation,repetitive nerve electrical stimulation,in addition to non-invasive transcranial magnetic stimulation and transcranial direct current *** studies have shown that electromagnetic stimulation-mediated neuromodulation therapy can markedly improve neurological function and reduce the frequency of epileptic ***,many new technologies for the diagnosis and treatment of epilepsy are being ***,current research is mainly focused on analyzing patients’clinical manifestations and exploring relevant diagnostic and treatment methods to study the pathogenesis at a molecular level,which has led to a lack of consensus regarding the mechanisms related to the disease.

关键词： diagnosis drug treatment electroencephalography epilepsy monitoring epilepsy nerve regeneration neurostimulation non-drug interventions pathogenesis prediction

Discovery of primary lung cancer following resection of rectal cancer lung metastasis:A case report

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World Journal of Clinical Oncology 2025年第2期16卷 173-179页

作者： Fei-Yan Zhou Fang-hua Song zhen-Hao Cheng Sen Wu Department of Oncology II Xinhua HospitalDalian UniversityDalian 116000Liaoning ProvinceChina

BACKGROUND Colorectal cancer(CRC)ranks high among the most common types of malignant *** primary cause of cancer-related mortality is metastasis,with lung metastases accounting for 32.9%of all cases of metastatic CRC(MCRC).However,cases of MCRC in the lungs,which present concurrently with primary peripheral lung adenocarcinoma,are exceptionally *** SUMMARY This report describes the case of a 52-year-old female patient who,following a colonoscopy,was diagnosed with moderately differentiated adenocarcinoma based on rectal mucosal biopsy findings.A preoperative chest computed tomography scan revealed a ground-glass nodule in the right lung and a small nodule(approximately 0.6 cm in diameter)in the extramural basal segment of the left lower lobe,which suggested multiple lung metastases from rectal *** treatment and follow-up led to a diagnosis of rectal cancer with left lung metastasis and peripheral adenocarcinoma of the lower lobe of the right *** This case report describes the therapeutic journey of a patient with lung metastasis from rectal cancer in addition to primary peripheral adenocarcinoma,thus underscoring the critical roles of multidisciplinary collaboration,personalized treatment strategies,and comprehensive patient rehabilitation guidance.

关键词： Rectal cancer Metastatic lung cancer Peripheral lung adenocarcinoma Double primary cancer Case report

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活性染料轧蒸连续染色工艺实践

染整技术 2007年第5期29卷 13-15页

作者：柴化珍马学亚冯森山西彩佳印染有限公司山西永济044500

介绍了活性染料轧蒸连续染色工艺开发的背景,论述了工艺基本原理、工艺特点、从小样到大样生产的重现性、产品的质量和节能、降耗、环保方面的显著效果,肯定了该工艺的先进性、可行性、实用性和工业化推广前景。

关键词：染色活性染料轧蒸连续染色

运动干预对儿童执行功能影响的网状meta分析

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中国心理卫生杂志 2025年第1期39卷 68-74页

作者：李华甄志平张萍哈尔滨体育学院研究生院哈尔滨150006 北京师范大学体育与运动学院北京100091

目的:比较多种运动干预方案对儿童执行功能的影响。方法:检索中国知网、万方、pubmed、Web of science、Embase、Cochrane建库至2022年12月,关于运动干预对儿童执行功能影响的实验研究,采用Cochrane偏倚风险评估工具评估纳入文献质量,根... 详细信息

目的:比较多种运动干预方案对儿童执行功能的影响。方法:检索中国知网、万方、pubmed、Web of science、Embase、Cochrane建库至2022年12月,关于运动干预对儿童执行功能影响的实验研究,采用Cochrane偏倚风险评估工具评估纳入文献质量,根据PICOS原则制定文献的纳入和排除标准,以标准化均数差(SMD)为效应指标。结果:纳入43篇文献(n=5 333)。Meta分析结果显示,促进儿童抑制控制首选单次运动时间≥51min、每周2次、干预周期≥17周的球类运动(SUCRA=86.8);促进儿童工作记忆首选单次运动时间10~30 min、每周2次、干预周期5~8周的球类运动(SUCRA=75.6);促进儿童认知灵活性首选单次运动时间31~50 min、每周2次、干预周期5~8周的球类运动(SUCRA=89.4)。结论:不同运动干预方案对儿童执行功能的影响效应不同。

关键词：运动干预儿童执行功能网状meta分析