Upstream Operations in the Oil Industry： Rigorous Modeling ofan Electrostatic Coalescer

This paper deals with a first-principle mathematical model that describes the electrostatic coalescer unitsdevoted to the separation of water from oil in water-in-oil emulsions, which are typical of the upstreamoperations in oil fields. The main phenomena governing the behavior of the electrostatic coalescer are denscribed, starting from fundamental laws. In addition, the gradual coalescence of the emulsion droplets isconsidered in the mathematical modeling in a dynamic fashion, as the phenomenon is identified as a keystep in the overall yield of the unit operation. The resulting differential system with boundary conditionsis then integrated via performing numerical libraries, and the simulation results confirm the available lit-erature and the industrial data. A sensitivity analysis is provided with respect to the main parameters. Themathematical model results in a flexible tool that is useful for the purposes of design, unit behavior predic-tion. performance rnoniroring, and ontimization.

A Rigorous Spectral Representation of Relativistic Random Phase Approximation

A rigorous spectral representation of relativistic random-phase approximation is presented.Explicit expression is derived for the effective particle-hole interaction which contains the direct term Kan,the exchange term KaQ and the kernel for the fermion line renormalization K_(fr).It is shown that according to our method,not only K_(an) but also K_(sc) and K_(fr) can be given rigorously in a form which depends only on one ω(energy)-variable and they all take account of the retardation effect properly.

Rigorous Coupled-Wave Approach for Sandwich Gratings

Rigorous Coupled-Wave Approach (RCWA) has been used successfully and accurately to study simple grating structures, such as one-layer gratings, one-whole gratings. In this paper, RCWA is expanded to solve Sandwich gratings (SG), which is composed of two identical planar dielectric gratings adjoined by thin metallic or dielectric film. The electromagnetic analytic expressions for each layer of SG structure are given and rigorous coupled-wave equations are deduced. The numerical investigations for the diffraction spectra of SG by our theoretical and computer programs are in good agreement with the results of classical RCWA in the condition when a Sandwish grating is simplified to a classical one-layer grating. The calculations by our programs of another condition when a Sandwish grating is degenerated to a classical single planar structure also conform to the results of classical electromagnetic theory. The research results above indicate that the extended theoretical formula has backwards compatibility and is self-consistent with the classical theory.

CONTINUOUS TIME RANDOM WALKS ON FRACTALS:RIGOROUS RESULTS

Continuous time random walk on fractals is studied.Asymptotic forms of<r^(2)(t)>,S(t)and P(t)are obtained rigorously by the generalized Blackwell theorem,where<r^(2)(t)>is the mean-square displacement,S(t)the number of distinct sites visited in time t,and P(t)the probability of return at time t.The spatial disorder turns out to be predominant for long time.

The rigorous adjustment of the global mean sea level budget during 2005-2015

Global mean sea level budget is rigorously adjusted during the period 2005-2015.The emphasis is to provide the best estimates for the linear rates of changes(trends)of the global mean sea level budget components during this period subject to the constraint:Earth’s hydrosphere conserves water.The newly simultaneously adjusted trends of the budget components suggest a larger correction for the global mean sea level trend implicated by the other budget components’trends under the budget constraint.The simultaneous estimation of the linear trends of the budget components subject to the constraint for closure improves their uncertainties and enables a holistic assessment of the global mean sea budget,which has implications for future sea level science studies,including the future Intergovernmental Panel on Climate Change(IPCC)Assessment Reports,and the US Climate Assessment Reports.

Re ned rigorous perturbation bounds for the SR decomposition

In this article,some new rigorous perturbation bounds for the SR decomposition un-der normwise or componentwise perturbations for a given matrix are derived.Also,the explicit expressions for the mixed and componentwise condition numbers are presented by utilizing the block matrix-vector equation approach.Hypothetical and trial results demonstrate that these new bounds are constantly more tightly than the comparing ones in the literature.

Area inside a Circle: Intuitive and Rigorous Proofs

In this article I conduct a short review of the proofs of the area inside a circle. These include intuitive as well as rigorous analytic proofs. This discussion is important not just from mathematical view point but also because pedagogically the calculus books still use circular reasoning today to prove the area inside a circle (also that of an ellipse) on this important historical topic, first illustrated by Archimedes. I offer an innovative approach through the introduction of a theorem, which will lead to proving the area inside a circle avoiding circular argumentation.

Application of rigorous coupled-wave theory on quality analysis of natural jadeite

In order to make more available methods for natural jadeite quality evaluation,this study applied rigorous coupled wave theory to calculate and simulate the reflection characteristics of various natural jadeites,and establish evaluation standard based on the relationship between refractive index and reflectivity and responses of reflection efficiency to refractive index,grating thickness and incident angles,etc.The results suggest that reflection efficiency varies significantly as a function of the natural jadeite quality,which can provide a new method to evaluate natural jadeite.

Answering calls for rigorous health equity research:a cross-sectional study leveraging electronic health records for data disaggregation in Latinos

Introduction Country of birth/nativity information may be crucial to understanding health equity in Latino populations and is routinely called for in health services literature assessing cardiovascular disease and risk,but is not thought to co-occur with longitudinal,objective health information such as that found in electronic health records(EHRs).Methods We used a multistate network of community health centres to describe the extent to which country of birth is recorded in EHRs in Latinos,and to describe demographic features and cardiovascular risk profiles by country of birth.We compared geographical/demographic/clinical characteristics,from 2012 to 2020(9 years of data),of 914495 Latinos recorded as US-born,non-US-born and without a country of birth recorded.We also described the state in which these data were collected.Results Country of birth was collected for 127138 Latinos in 782 clinics in 22 states.Compared with those with a country of birth recorded,Latinos without this record were more often uninsured and less often preferred Spanish.While covariate adjusted prevalence of heart disease and risk factors were similar between the three groups,when results were disaggregated to five specific Latin countries(Mexico,Guatemala,Dominican Republic,Cuba,El Salvador),significant variation was observed,especially in diabetes,hypertension and hyperlipidaemia.Conclusions In a multistate network,thousands of non-US-born,US-born and patients without a country of birth recorded had differing demographic characteristics,but clinical variation was not observed until data was disaggregated into specific country of origin.State policies that enhance the safety of immigrant populations may enhance the collection of health equity related data.Rigorous and effective health equity research using Latino country of birth information paired with longitudinal healthcare information found in EHRs might have significant potential for aiding clinical and public health practice,but it depends on increased,widespread and accurate availability of this information,co-occurring with other robust demographic and clinical data nativity.

健全全面从严治党体系的历史逻辑与现实路径

深入学习研究党的二十大报告提出的“健全全面从严治党体系”的新课题,需要从把握历史逻辑、梳理丰富成果和探索现实路径等维度,着力阐明我们党在加强自身建设的历史进程中始终坚持推进伟大工程与坚持管党治党方针并举,把党的建设作为一大法宝,以着力加强党的建设为党领导中国革命、建设和改革不断走向胜利所发挥的重要政治保证作用。从这个历史逻辑中,可以得出只有始终坚持党的领导,坚持全面从严治党,才能确保党永远不变质、不变色、不变味,始终成为强国复兴伟业的坚强领导核心的启示。新时代十年,我们党把加强党的领导作为全面从严治党的核心,把全面从严治党作为党的建设鲜明主题,不断深化对自我革命规律的认识,把全面从严治党贯穿于党的建设新布局,坚持以政治建党为统领,以思想建党凝心铸魂,以组织建党造形,以制度治党为保障,以正风、肃纪与反腐为党心民心所向,初步构建起全面从严治党体系。要把健全全面从严治党体系这个新时代加强党的建设的重大举措、重大任务落实好,必须深化对“坚持内容上全涵盖、对象上全覆盖、责任上全链条、制度上全贯通”的理解和把握,着力在党的建设各个方面内容上全涵盖,在管全党和治全党上全覆盖,在党的各级组织肩负主体责任、各级纪委承担监督责任上全链条,在把制度建设落实到全面从严治党全过程与各层级上全贯通,对健全全面从严治党体系的现实路径指向作出探讨。

中国共产党对大党建设的历史探索及其启示

中国共产党对于建设和治理大党有着长期深入的思考和丰富的实践,在革命、建设、改革和新时代各个历史时期,中国共产党不断结合党的实际探索大党建设的路径,取得了丰硕的成果。党的十八大以来,以习近平同志为核心的党中央站在巩固党长期执政地位的战略高度,开辟了新时代全面从严治党的新局面,使党的自我革命展现出新的气象。中国共产党对大党建设的历史探索启示我们:要对党的队伍和自身发展发生的深刻变化保持高度清醒,把提高党的建设质量放在突出位置;要对组织规模扩大对组织结构的影响保持高度清醒,进一步健全维护党中央权威和集中统一领导的制度;要对大党建设的长期性和复杂性保持高度清醒,确保党不变质不变色不变味,确保党始终赢得人民拥护、巩固长期执政地位。

全面从严治党永远在路上的三重意蕴

“全面从严治党永远在路上”命题的提出具有重要的理论和现实意义。全面深刻理解和把握全面从严治党永远在路上需要厘清历史周期率、开展自我革命和锤炼革命性三者之间的内在逻辑和深刻内涵。破解历史周期率是推进全面从严治党的底层逻辑,开展党的自我革命是厉行全面从严治党的不二选择,锤炼革命性是落实全面从严治党任务的精神动力。

材料学科“论文写作与学术规范”课程思政建设实践与探索

课程思政建设是高校实现“三全育人”、落实立德树人根本任务的基本途径。“论文写作与学术规范(材料学科)”旨在系统地培养研究生的文献检索、阅读,论文写作与发表,开题报告、创新项目的撰写与答辩等能力。将课程思政融入课程教学实践,需要深入挖掘兼具材料学科与思想政治教育内涵的思政元素,通过采用引导式、研讨式、实践式、案例式等教学方法,培育学生的成长型思维与批判性思维,使其养成严谨的科学态度,并筑牢科研诚信底线,最终促进专业教学与思政教育同向同行,提高研究生培养质量。

汉语衔接研究的新里程——《汉语的衔接》读后

《汉语的衔接》作为第一部专攻汉语衔接的专著,以问题创新为引领,赓续衔接文脉,避开重复研究,构建贴近汉语实际的框架系统,以学术性为根本,展开极致描写、深度阐释和率真论辩,从而剥离浮华表象,抓住问题实质,以敬畏求实的学术态度。通过专题式、多视角、不同问卷等形式求证观点的正确性。《衔接》深化了汉语衔接的本土化研究,推动了汉语衔接研究进入新里程。

全面从严治党体系:认知逻辑、运行机理与实践进路

党的二十大报告提出“健全全面从严治党体系”的任务,标志着全面从严治党进入新的发展阶段。基于中国共产党治党史的形成逻辑、全面从严治党概念要素的内涵逻辑、党的建设总体布局和治国理政布局体系的结构逻辑,共同构建了全面从严治党体系的完整认知逻辑。全面从严治党体系的健全需要分布在不同层面的支撑要素进行奠基与护航,在此过程中,要消除这些支撑要素的差异,按照一定的运行样态与运行模式实现最大程度的协同配合,形成整体支撑效应。健全全面从严治党体系应围绕主体责任体系、制度体系、结构体系、监督体系、方法体系等在内的实践进路展开。

Advanced Computational Methods of Rapid and Rigorous 3-D Inversion of Airborne Electromagnetic Data

We develop a new computational method for modeling and inverting frequency domain airborne electromagnetic(EM)data.Our method is based on the contraction integral equation method for forward EM modeling and on inversion using the localized quasi-linear(LQL)approximation followed by the rigorous inversion,if necessary.The LQL inversion serves to provide a fast image of the target.These results are checked by a rigorous update of the domain electric field,allowing a more accurate calculation of the predicted data.If the accuracy is poorer than desired,rigorous inversion follows,using the resulting conductivity distribution and electric field from LQL as a starting model.The rigorous inversion iteratively solves the field and domain equations,converting the non-linear inversion into a series of linear inversions.We test this method on synthetic and field data.The results of the inversion are very encouraging with respect to both the speed and the accuracy of the algorithm,showing this is a useful tool for airborne EM interpretation.

充分发挥党内法规制度在全面从严治党体系中的保障作用

用制度保障党的各方面建设有机衔接、联动集成、协同协调,促进全面从严治党各要素的贯通联动,是健全全面从严治党体系的必由之路。党内法规制度在管党治党实践中以其特有的政治引领机制、激励驱动机制、网络整合机制在全面从严治党体系中发挥着重要作用。未来应持续完善党内法规制度体系,促进党内法规制度治理效能转化提升,坚定不移把全面从严治党向纵深推进。

新时代健全全面从严治党体系研究述评

党的二十大首次提出了“健全全面从严治党体系”这一重大命题,构建全面从严治党体系是一项具有全局性、开创性的工作,这一命题迅速引起了学术界的广泛关注。学界围绕全面从严治党体系的内涵外延、重要价值、体系框架、重大意义以及实践路径等多方面开展了探讨和研究,对于推动全面从严治党体系协同构建提供了一定理论支撑和实践启迪。然而,总体来看,学界对该问题的研究尚处于初步阶段,仍存在不足之处:对于全面从严治党体系基本概念与理论内涵界定比较模糊,学理阐释与学术构建比较薄弱,突出问题与建构对策的研究仍然比较欠缺。今后的研究中,要进一步强化基本概念与基本范畴的科学界定、深化全面从严治党体系构建的对策路径研究、着力提高全面从严治党体系的学理性阐释和学术化建构水平。

破解大党独有难题的理与路

作为世界上最大的马克思主义执政党,中国共产党之“大”在给党带来独有优势的同时,也使党面临“六个如何始终”的独有难题。破解这些难题,是实现新时代新征程党的使命任务、深入推进全面从严治党和巩固党的长期执政地位的必然要求,需在坚持和加强党的全面领导、始终牢记党的初心使命、不断深化党的自我革命和持续强化能力训练等方面综合发力。

“五个必由之路”的内涵体系、生成逻辑和实践向度

“五个必由之路”是中国共产党在长期实践中得出的至关紧要的规律性认识。“五个必由之路”突出党的全面领导政治优势、彰显中国特色社会主义道路特色、体现团结奋斗民族特质、强调贯彻新发展理念、注重全面从严治党党内保障,每一“必由之路”相互之间具有紧密的内在逻辑,合力构成系统完整的内涵体系。“五个必由之路”是党进行理论探索和创新取得的新成果,是党的百年奋斗的历史经验总结,是党完成新征程上使命任务的必然要求,理论、历史、现实的三重维度共同擎画“五个必由之路”的生成逻辑。走好“五个必由之路”,要坚持从政治方向、道路走向、精神志向、理念导向、自我革命取向的五个向度加以遵循,引领和保障中国特色社会主义巍巍巨轮乘风破浪、行稳致远。