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保护计算机中的秘密

电子与电脑 1999年第4期6卷 108-109页

作者： michael banks 马宗奎

你的PC机会向外透露你所进行的工作。那些窥探者在你的计算机中查找一阵后,就会发现大量各种信息:已经被你删除的收到和发出的邮件,你访问过的Internet网站,搜索规则及你在网页表单中输入的数据,甚至你在文档中使用的词汇,包括你后来修... 详细信息

你的PC机会向外透露你所进行的工作。那些窥探者在你的计算机中查找一阵后,就会发现大量各种信息:已经被你删除的收到和发出的邮件,你访问过的Internet网站,搜索规则及你在网页表单中输入的数据,甚至你在文档中使用的词汇,包括你后来修改和删除的单词。幸运的是,如果你知道一些秘密技巧,那就能保护自己不受侵扰。而下面介绍的正是这些保护计算机中秘密的方法。

关键词：信息安全计算机安全 Internet网

Robust Cross-Linked Na_(3)V_(2)(PO_(4))_(2)F_(3) Full Sodium-Ion Batteries

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Energy & Environmental Materials 2024年第1期7卷 9-20页

作者： Jinqiang Gao Ye Tian Lianshan Ni Baowei Wang Kangyu Zou Yingchang Yang Ying Wang Craig E.banks Dou Zhang Kechao Zhou Huan Liu Wentao Deng Guoqiang Zou Hongshuai Hou Xiaobo Ji College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083China College of Material and Chemical Engineering Tongren UniversityTongren 554300China Department of Chemistry The Chinese University of Hong KongShatinN.T.Hong Kong S.A.R.China Faculty of Science and Engineering Manchester Metropolitan UniversityManchester UK State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China School of Materials Science and Engineering Hunan Provincial Key Lab of Advanced Materials for New Energy Storage and ConversionHunan University of Science and TechnologyXiangtan 411201China School of Materials and Engineering Zhengzhou UniversityZhengzhou 450001China

Sodium-ion batteries(SIBs)have rapidly risen to the forefront of energy storage systems as a promising supplementary for Lithium-ion batteries(LIBs).Na_(3)V_(2)(PO_(4))_(2)F_(3)(NVPF)as a common cathode of SIBs,features the merits of high operating voltage,small volume change and favorable specific energy ***,it suffers from poor cycling stability and rate performance induced by its low intrinsic ***,we propose an ingenious strategy targeting superior SIBs through cross-linked NVPF with multi-dimensional nanocarbon frameworks composed of amorphous carbon and carbon nanotubes(NVPF@C@CNTs).This rational design ensures favorable particle size for shortened sodium ion transmission pathway as well as improved electronic transfer network,thus leading to enhanced charge transfer kinetics and superior cycling *** from this unique structure,significantly improved electrochemical properties are obtained,including high specific capacity(126.9 mAh g^(-1)at 1 C,1 C=128 mA g^(-1))and remarkably improved long-term cycling stability with 93.9%capacity retention after 1000 cycles at 20 *** energy density of 286.8 Wh kg^(-1)can be reached for full cells with hard carbon as anode(NVPF@C@CNTs//HC).Additionally,the electrochemical performance of the full cell at high temperature is also investigated(95.3 mAh g^(-1)after 100 cycles at 1 C at 50℃).Such nanoscale dual-carbon networks engineering and thorough discussion of ion diffusion kinetics might make contributions to accelerating the process of phosphate cathodes in SIBs for large-scale energy storages.

关键词： dual-nanocarbon networks full sodium-ion battery ion transfer kinetics Na_(3)V_(2)(PO_(4))_(2)F_(3) NASICON structure

Lean body mass index is a marker of advanced tumor features in patients with hepatocellular carcinoma

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World Journal of Hepatology 2024年第3期16卷 393-404页

作者： Andrew Scott deLemos Jing Zhao Milin Patel banks Kooken Karan Mathur Hieu Minh Nguyen Areej Mazhar Maggie McCarter Heather Burney Carla Kettler Naga Chalasani Samer Gawrieh Department of Medicine Atrium HealthCharlotteNC 28204United States Center for Outcomes Research and Evaluation Atrium HealthCharlotteNC 28204United States Department of Medicine Indiana University School of MedicineIndianapolisIN 46202United States Center for Health System Sciences(CHASSIS) Atrium HealthCharlotteNC 28204United States Department of Medicine Northwestern University Feinberg School of MedicineChicagoIL 60611United States Department of Biostatistics and Health Data Science Indiana University School of MedicineIndianapolisIN 46202United States Department of Gastroenterology and Hepatology Indiana University School of MedicineIndianapolisIN 46202United States

BACKGROUND Obesity is an independent risk factor for the development of hepatocellular carcinoma(HCC)and may influence its ***,after diagnosis of HCC,like other malignancies,the obesity paradox may exist where higher body mass index(BMI)may in fact confer a survival *** is frequently observed in patients with advanced HCC and cirrhosis,who often present late with advanced tumor features and cancer related weight *** To explore the relationship between BMI and survival in patients with cirrhosis and *** This is a retrospective cohort study of over 2500 patients diagnosed with HCC between 2009-2019 at two United States academic medical *** and tumor characteristics were extracted manually from medical records of each institutions'cancer *** were stratified according to BMI classes:30 kg/m^(2)(obese).Patient and tumor characteristics were compared according to BMI *** performed an overall survival analysis using Kaplan Meier by the three BMI classes and after adjusting for Milan criteria.A multivariable Cox regression model was then used to assess known risk factors for survival in patients with cirrhosis and *** A total of 2548 patients with HCC were included in the analysis of which 11.2%(n=286)were classified as *** three main BMI categories:Lean(n=754),overweight(n=861),and obese(n=933)represented 29.6%,33.8%,and 36.6%of the total population *** each BMI class,the non-cirrhotic patients accounted for 15%(n=100),12%(n=94),and 11%(n=92),*** patients with a BMI<18.5 kg/m^(2)(n=52)were included in the lean *** the obese cohort,42%(n=396)had a BMI≥35 kg/m^(2).Out of 2262 patients with cirrhosis and HCC,654(29%)were lean,767(34%)were overweight,and 841(37%)were *** three BMI classes did not differ by age,MELD,or Child-Pugh *** hepatitis C was the dominant etiology in lea

关键词： Hepatocellular carcinoma Cirrhosis Obesity Body mass index class Sarcopenia Chronic hepatitis C

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偶尔朋友

初中生 2024年第11期 45-49页

作者： Heather Lynne banks Luke(编译) 不详

朋友之间相互尊重、相互欣赏,彼此会觉得很舒服。如果有的朋友总是向你发泄负面情绪,我们是应该迁就还是包容呢?面对这样的情况,露西是如何处理的?露西扫视一圈自助餐厅,努力让自己不要惊慌。这是她在新学校上学的第一天。她不知道该和... 详细信息

朋友之间相互尊重、相互欣赏,彼此会觉得很舒服。如果有的朋友总是向你发泄负面情绪,我们是应该迁就还是包容呢?面对这样的情况,露西是如何处理的?露西扫视一圈自助餐厅,努力让自己不要惊慌。这是她在新学校上学的第一天。她不知道该和谁坐在一起。

关键词：负面情绪相互尊重自助餐厅相互欣赏朋友学校

Resting-state functional connectivity in lifelong musicians

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Psychoradiology 2023年第1期3卷 154-161页

作者： Cyrus Eierud Andrew michael David banks Edna Andrews Linguistics Program Duke UniversityDurhamNC 27708USA Duke Institute for Brain Sciences Duke UniversityDurhamNC 27708USA Department of Statistical Science Duke UniversityDurhamNC 27708USA Center for Cognitive Neuroscience Duke UniversityDurhamNC 27708USA

Background:It has been postulated that musicianship can lead to enhanced brain and cognitive reserve,but the neural mechanisms of this effect have been poorly *** professional musicianship in conjunction with novel brain imaging techniques offers a unique opportunity to examine brain network differences between musicians and matched ***:In this study we aim to investigate how resting-state functional networks(FNs)manifest in lifelong active *** will evaluate the FNs of lifelong musicians and matched healthy controls using resting-state functional magnetic resonance ***:We derive FNs using the data-driven independent component analysis approach and analyze the functional network con-nectivity(FNC)between the default mode(DMN),sensory-motor(SMN),visual(VSN),and auditory(AUN)*** examine whether the linear regressions between FNC and age are different between the musicians and the control ***:The age trajectory of average FNC across all six pairs of FNs shows significant differences between musicians and *** show an increase in average FNC with age while controls show a decrease(P=0.013).When we evaluated each pair of FN,we note that in musicians FNC values increased with age in DMN–AUN,DMN–VSN,and SMN–VSN and in controls FNC values decreased with age in DMN–AUN,DMN–SMN,AUN–SMN,and SMN–***:This result provides early evidence that lifelong musicianship may contribute to enhanced brain and cognitive *** of this study are preliminary and need to be replicated with a larger number of participants.

关键词： resting-state fMRI lifelong musicianship default mode network sensory-motor network functional network connectivity cognitive reserve

On Exact Conservation for the Euler Equations with Complex Equations of State

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Communications in Computational Physics 2010年第10期8卷 995-1015页

作者： J.W.banks Center for Applied Scientific Computing Lawrence Livermore National LaboratoryLivermoreCA 94551USA

Conservative numerical methods are often used for simulations of fluid flows involving shocks and other jumps with the understanding that conservation guarantees reasonable treatment near *** is true in that convergent conservative approximations converge to weak solutions and thus have the correct shock ***,correct shock location results from any discretization whose violation of conservation approaches zero as the mesh is *** we investigate the case of the Euler equations for a single gas using the Jones-Wilkins-Lee(JWL)equation of *** show that a quasi-conservative method can lead to physically realistic solutions which are devoid of spurious pressure ***,we demonstrate that under certain conditions,a quasi-conservative method can exhibit higher rates of convergence near shocks than a strictly conservative counterpart of the same formal order.

关键词： Euler equations complex EOS JWL EOS Godunov methods

Composite Integers n for Which φ(n)|n-1

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Acta Mathematica Sinica,English Series 2007年第10期23卷 1915-1918页

作者： William D.banks Florian LUCA Department of Mathematics University of MissouriColumbiaMO 65211USA Instituto de Matemáticas Universidad Nacional Autdnoma de MéxicoC.P.58089 MoreliaMichoacánMéxico

In this note, we show that the number of composite integers n ≤ x such that φ（n）｜n - 1 is at most O（x^1/2（loglog x）^1/2）, thus improving earlier results by Pomerance and by Shan.

关键词： Euler function Lehmer conjecture

Cellular automata modelling of austenite grain coarsening during reheating——I. Normal grain coarsening

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Journal of University of Science and Technology Beijing 2004年第6期11卷 517-523页

作者： WanhuaYU E.J.Palmiere S.P.banks JingtaoHan MaterialsScienceandEngineeringSchool UniversityofScienceandTechnologyBeijingBeijing100083China DepartmentofEngineeringMaterials UniversityofSheffieldSheffieldS13JDUK DepartmentofAutomaticControlandSystemsEngineering UniversityofSheffieldSheffieldS13JDUK

A two-dimensional cellular automaton (CA) model has been developed for thedescription of the normal grain coarsening process. The probabilistic CA method incorporatingMoore's definition of the neighbourhood is used to simulate the normal grain coarsening process witha new transition rule. The model simulates the grain coarsening process in as much detail that ispossible, from the point of initial nucleation to subsequent coarsening with computational *** unique result is that the grain coarsening speed can be controlled by the specific method, thisresult is vital to model the grain coarsening quantitatively. In order to make this model valid,experimental work has been done to provide solid evidence for this model. Comparison of themodelling result and the experimental result has been carried out.

关键词： computer simulation grain growth microstructure reheating

Cellular automata modelling of grain coarsening during reheating——Ⅱ. Abnormal grain growth

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Journal of University of Science and Technology Beijing 2005年第1期12卷 26-32页

作者： WanhuaYu E.J.Palmiere S.P.banks JingtaoHan DepartmentofMaterialsEngineering UniversityofScienceandTechnologyBeijingBeijing100083China DepartmentofEngineeringMaterials UniversityofSheffieldS13JDSheffieldUK DepartmentofAutomaticControlandSystemsEngineering UniversityofSheffieldS13JDSheffieldUK

The 2-dimensional cellular automata (CA) simulation technique has been utilized to investigate the abnormal grain coarsening. The growth of abnormal grains is modelled under this assumption that different grains have different boundary energies and boundary mobilities. As temperature increases, some grains may first get rid of the particle pinning effect. Thus a high probability is obtained for atoms to jump over the boundary, so that they can consume other primary retained grains quickly. From the simulation, the characteristics of the abnormal grain coarsening under different conditions are demonstrated successfully. An experiment has also been carried out to reflect the abnormal grain coarsening on the microalloy steel. Simulation results are quite close to the experimental evidence.

关键词： computer simulation grain growth microstructure reheating