期刊文献+
共找到125篇文章
< 1 2 7 >
每页显示 20 50 100
Upstream Operations in the Oil Industry: Rigorous Modeling ofan Electrostatic Coalescer 被引量:1
1
作者 Francesco Rossi Simone Colombo +2 位作者 Sauro Pierucci Eliseo Ranzi Flavio Manenti 《Engineering》 SCIE EI 2017年第2期220-231,共12页
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 upstreamoperat... 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. 展开更多
关键词 UPSTREAM operations ELECTROSTATIC COALESCER Desalter rigorous modeling Water-oil EMULSION
在线阅读 下载PDF
A Rigorous Spectral Representation of Relativistic Random Phase Approximation 被引量:1
2
作者 WU Shishu YAO Yujie +2 位作者 SU Junchen FU Manzheng CUI Tian 《Chinese Physics Letters》 SCIE CAS CSCD 1992年第7期345-348,共4页
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 ter... 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. 展开更多
关键词 rigorous APPROXIMATION PROPERLY
原文传递
Application of rigorous coupled-wave theory on quality analysis of natural jadeite 被引量:1
3
作者 JIA Yuxin CHEN Guibo ZHAO Pengfei 《Global Geology》 2017年第1期64-68,共5页
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 e... 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. 展开更多
关键词 rigorous coupled-wave analysis method natural jadeite refractive index reflective efficiency
在线阅读 下载PDF
Rigorous Coupled-Wave Approach for Sandwich Gratings 被引量:1
4
作者 Xuehui Xiong Ping Lu 《Journal of Applied Mathematics and Physics》 2016年第8期1439-1445,共7页
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 gra... 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. 展开更多
关键词 rigorous Coupled-Wave Approach Sandwich Gratings SELF-CONSISTENT
在线阅读 下载PDF
Re ned rigorous perturbation bounds for the SR decomposition
5
作者 Mahvish Samar Aamir Farooq 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2021年第4期537-553,共17页
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 componentwis... 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. 展开更多
关键词 SR decomposition rigorous perturbation bound Lyapunov majorant function Banach fixed point theorem Mixed and componentwise condition numbers
在线阅读 下载PDF
The rigorous adjustment of the global mean sea level budget during 2005-2015
6
作者 H.Bâki Iz T.Y.Yang C.K.Shum 《Geodesy and Geodynamics》 CSCD 2021年第3期175-180,共6页
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 durin... 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. 展开更多
关键词 Climate change Misclosure Global mean sea level rigorous adjustment
原文传递
CONTINUOUS TIME RANDOM WALKS ON FRACTALS:RIGOROUS RESULTS
7
作者 WEN Chao LIU Fusui 《Chinese Physics Letters》 SCIE CAS 1986年第2期93-95,共3页
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)... 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. 展开更多
关键词 rigorous TURNS predominant
原文传递
Area inside a Circle: Intuitive and Rigorous Proofs
8
作者 Vali Siadat 《American Journal of Computational Mathematics》 2017年第1期102-108,共7页
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 a... 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. 展开更多
关键词 Area Circle ELLIPSE CIRCULAR REASONING Intuitive PROOF rigorous PROOF
在线阅读 下载PDF
Nondestructive characterization of the domain structure of periodically poled lithium niobate crystal based on rigorous coupled-wave analysis
9
作者 田宝璐 陈怀熹 +3 位作者 Choge Dismas K 许艺斌 李广伟 梁万国 《Optoelectronics Letters》 EI 2017年第3期206-209,共4页
We report rigorous coupled-wave analysis(RCWA) method to non-destructively characterize the domain structure of periodically poled lithium niobate(PPLN) crystal. The strong light diffraction effect is achieved by appl... We report rigorous coupled-wave analysis(RCWA) method to non-destructively characterize the domain structure of periodically poled lithium niobate(PPLN) crystal. The strong light diffraction effect is achieved by applying a proper external voltage. We can observe reversed domain pattern and employ the detected diffraction intensity to optimally fit the result of RCWA based on least square method. Compared with conventional scalar diffraction theory, more accurate domain structure parameters with accuracies of 0.05 μm and 0.005 for the period and duty cycle are obtained respectively. It is proved that accurate, real-time and nondestructive characterization can be realized via this method. 展开更多
关键词 rigorous lithium periodically scalar applying characterize grating realized nondestructive silica
原文传递
Advanced Computational Methods of Rapid and Rigorous 3-D Inversion of Airborne Electromagnetic Data 被引量:3
10
作者 Leif H.Cox Michael S.Zhdanov 《Communications in Computational Physics》 SCIE 2008年第1期160-179,共20页
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 inversi... 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. 展开更多
关键词 Computational geophysics AIRBORNE ELECTROMAGNETICS INVERSION 3-D LQL rigorous
原文传递
RIGOROUS BOUNDS OF POWER SPECTRUM FOR RENORMALIZATION-GROUP EQUATION OF TRIFURCATION SEQUENCE
11
作者 彭守礼 王运祥 和永寿 《Chinese Science Bulletin》 SCIE EI CAS 1986年第24期1673-1678,共6页
The study of the bifurcation phenomena of the nonlinear system is getting ripe. Some lower high-order sequences, such as the trifurcation sequence, are being paid much attention. The trifurcation phenomena-have been o... The study of the bifurcation phenomena of the nonlinear system is getting ripe. Some lower high-order sequences, such as the trifurcation sequence, are being paid much attention. The trifurcation phenomena-have been observed in the nonlinear electric circuit, the Brussels’ oscillator and other experiments of the like. In the parameter space, the 展开更多
关键词 oscillator BIFURCATION GETTING OVERCOME universal REGULARITY meaningful rigorous DICTIONARY scaling
在线阅读 下载PDF
Answering calls for rigorous health equity research:a cross-sectional study leveraging electronic health records for data disaggregation in Latinos
12
作者 John Heintzman Dang Dinh +8 位作者 Jennifer A Lucas Elena Byhoff Danielle M Crookes Ayana April-Sanders Jorge Kaufmann Dave Boston Audree Hsu Sophia Giebultowicz Miguel Marino 《Family Medicine and Community Health》 2023年第2期9-17,共9页
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 ris... 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. 展开更多
关键词 LATIN rigorous sectional
原文传递
New Books
13
《China's Tibet》 2026年第1期71-71,共1页
Gazetteer of Garze’s Natural Scenery This book is divided into five chapters,provides a comprehensive exploration of the geographical features and cultural context surrounding the thirteen renowned mountains,five maj... Gazetteer of Garze’s Natural Scenery This book is divided into five chapters,provides a comprehensive exploration of the geographical features and cultural context surrounding the thirteen renowned mountains,five major rivers,as well as numerous lakes,glaciers,and ancient trails within Garze Tibetan Autonomous Prefecture,Sichuan Province.By combining academic rigor with accessibility and substantial documentary value,it allows readers to survey all of Garze with a single volume in hand.Published by the Local Records Publishing House. 展开更多
关键词 academic rigor cultural context natural scenery geographical features MOUNTAINS glaciers RIVERS LAKES
在线阅读 下载PDF
Rediscovering Analytical Rigor in Traditional Economic Thought:The“Second Integration”and the Making of a Chinese School of Economics
14
作者 Cheng Lin Zhou Rui Chen Xudong 《China Economist》 2026年第1期54-90,共37页
Does traditional Chinese economic thought possess genuine analytical rigor?This question lies at the heart of any serious evaluation of its theoretical value and historical significance.It also matters for understandi... Does traditional Chinese economic thought possess genuine analytical rigor?This question lies at the heart of any serious evaluation of its theoretical value and historical significance.It also matters for understanding how best to preserve,build on its remarkable achievements,and develop its intellectual legacy.Critics such as Schumpeter and Taylor have long argued that the economic reasoning found in ancient China cannot compare with that of classical Greece or medieval Europe.Yet this view often reflects the narrow assumptions of mainstream economics,defining analysis almost entirely in terms of market exchange.As a result,it tends to overlook traditions built around statecraft,governance,and the management of economic order.A careful re-examination and Sino-Western comparative analysis of key thinkers-including Mencius,Guanzi,and Sima Qian-tells a different story.Rooted in China’s distinctive cultural and philosophical heritage,traditional Chinese economic thought not only contains the analytical dimensions(as defined by Schumpeter)but also displays a broader and more diverse set of economic reasoning.Notably,its systematic depth and intellectual precision were,in many respects,remarkably advanced.Therefore,advancing the construction of a Chinese school of economics in the new era under the framework of the“Second Integration”,i.e.,integrating the basic tenets of Marxism with China’s fine traditional culture,should,and indeed can draw essential insights from this analytical tradition. 展开更多
关键词 traditional Chinese economic thought analytical rigor Second Integration Chinese economics
在线阅读 下载PDF
An Affable But Rigorous Teacher in Vocal Music
15
作者 WANG ANWEI SUJIE MAN 《Women of China》 1996年第4期12-12,共1页
WANG Pinsu, 75, is a professor at the Shanghai Conservatory of Music. Her parents named her Jingri which means "unstable day" because she was born during a time of tangled warfare among warlords. But a neigh... WANG Pinsu, 75, is a professor at the Shanghai Conservatory of Music. Her parents named her Jingri which means "unstable day" because she was born during a time of tangled warfare among warlords. But a neighbor who was a middle school teacher felt that Wang looked very simple and mature among the children, so he gave Wang another name "Pinsu," because of her appearance and demeanor. Professor Wang makes rigorous demands on herself in the cause of music. She is also very rigorous with 展开更多
关键词 An Affable But rigorous Teacher in Vocal Music
原文传递
LOOKING BACK AND FORWARD‘Top 10 News Stories on 2024 Lancang-Mekong Cooperation’unveiled in Bangkok
16
作者 Huang Jiangqin 《China Report ASEAN》 2025年第2期40-41,共2页
On January 17,a list of the“Top 10 News Stories on 2024 Lancang-Mekong Cooperation”was jointly unveiled by the Center for Asia-Pacific under China International Communications Group(CICG Asia-Pacific)and the Yunnan ... On January 17,a list of the“Top 10 News Stories on 2024 Lancang-Mekong Cooperation”was jointly unveiled by the Center for Asia-Pacific under China International Communications Group(CICG Asia-Pacific)and the Yunnan International Communication Center for South and Southeast Asia in Bangkok,Thailand,after a rigorous selection process. 展开更多
关键词 jointly process. rigorous
在线阅读 下载PDF
Embarking on a new journey,exploring infinite possibilities-Welcoming the 2025 edition of Animal Models and Experimental Medicine
17
作者 Chuan Qin 《Animal Models and Experimental Medicine》 2025年第1期3-3,2,共2页
Against the backdrop of a new era that commands the attention of scholars worldwide,and on a scientific research journey filled with both hope and challenges,Animal Models and Experimental Medicine(AMEM),as a beacon g... Against the backdrop of a new era that commands the attention of scholars worldwide,and on a scientific research journey filled with both hope and challenges,Animal Models and Experimental Medicine(AMEM),as a beacon guiding innovation and rigorous research in the field of animal models and experimental medicine,has once again shone brightly in 2024.With an impact factor of 3.8,a JCI and JCR Q2 ranking,and a CiteScore of 6.3,the journal has demonstrated a continuous rise in its influence and academic status. 展开更多
关键词 journal FILLED rigorous
暂未订购
Bibliometric study as a decision aid for biomedical research design
18
作者 Shu-Meng Shen Wen-Hao Wang Zheng-Wei Huang 《Medical Data Mining》 2025年第4期96-99,共4页
Introduction Since the 21st century,the biomedical field has gained increasing attention.The biomedical field mainly encompasses biology,materials science,pharmacology,and drug delivery,etc.These areas hold significan... Introduction Since the 21st century,the biomedical field has gained increasing attention.The biomedical field mainly encompasses biology,materials science,pharmacology,and drug delivery,etc.These areas hold significant importance for human society in terms of health protection,disease diagnosis and treatment,via medical technology innovation and drug development.Consequently,scientists place great emphasis on research in this domain.It must be noted that the research process in biomedicine mainly includes topic selection,experimentation,analysis,and summary.Among these,topic selection is a critical step that affects the entire process.This topic selection not only clarifies the direction and objectives of the study but also provides a clear framework for subsequent research,thereby ensuring scientific rigor and effectiveness while laying a solid foundation for the result analysis.Thus,how to approach topic selection is a crucial issue that requires careful consideration. 展开更多
关键词 research design topic selection drug developmentconsequentlyscientists bibliometric study scientific rigor biomedical field drug deliveryetcthese medical technology innovation
在线阅读 下载PDF
Correction:MiR-16-5p Plays an Inhibitory Role in Human Non-Small Cell Lung Cancer through Fermitin Family Member 2
19
作者 Junqi Guo Yun Yang +6 位作者 Wei Zhao Zhonghai Yan Xia Yang Yunfei Yan Ruimin Hao Jinxia Hu Fei Jiao 《BIOCELL》 2025年第9期1796-1796,共1页
Published:25 September 2025 In the article“MiR-16-5p plays an inhibitory role in human non-small cell lung cancer through Fermitin family member 2”(BIOCELL,2021,Vol.45,No.3,pp.627-638.doi:10.32604/biocell.2021.01349... Published:25 September 2025 In the article“MiR-16-5p plays an inhibitory role in human non-small cell lung cancer through Fermitin family member 2”(BIOCELL,2021,Vol.45,No.3,pp.627-638.doi:10.32604/biocell.2021.013496),there is an error in the Fig.3.In order to ensure the scientific and rigorous nature of our academic publications,we made a correction about Fig.3 correspondingly. 展开更多
关键词 fermitin family member non small cell lung cancer CORRECTION scientific rigor fermitin family member biocell vol no pp doi biocell there miR p
暂未订购
Critical Factors Dictating Reversibility of the Zinc Metal Anode 被引量:8
20
作者 Lin Ma Marshall A.Schroeder +8 位作者 Travis P.Pollard Oleg Borodin Michael S.Ding Ruimin Sun Longsheng Cao Janet Ho David R.Baker Chunsheng Wang Kang Xu 《Energy & Environmental Materials》 SCIE 2020年第4期516-521,共6页
With high energy density and improved safety,rechargeable battery chemistries with a zinc(Zn)metal anode offer promising and sustainable alternatives to those based on lithium metal or lithium-ion intercalation/alloyi... With high energy density and improved safety,rechargeable battery chemistries with a zinc(Zn)metal anode offer promising and sustainable alternatives to those based on lithium metal or lithium-ion intercalation/alloying anode materials;however,the poor electrochemical reversibility of Zn plating/stripping,induced by parasitic reactions with both aqueous and non-aqueous electrolytes,presently limits the practical appeal of these systems.Although recent efforts in rechargeable Zn metal batteries(RZMBs)have achieved certain advancements in Zn metal reversibility,as quantified by the Coulombic efficiency(CE),a standard protocol for CE has not been established,and results across chemistries and systems are often conflicting.More importantly,there is still an insufficient understanding regarding the critical factors dictating Zn reversibility.In this work,a rigorous,established protocol for determining CE of lithium metal anodes is transplanted to the Zn chemistry and is used for systematically examining how a series of factors including current collector chemistry,current density,temperature,and the upper voltage limit during stripping affect the measured reversibility of different Zn electrolytes.With support from density functional theory calculations,this standardized Zn CE protocol is then leveraged to identify an important correlation between electrolyte solvation strength toward Zn2+and the measured Zn CE in the corresponding electrolyte,providing new guidance for future development and evaluation of Zn electrolytes. 展开更多
关键词 Coulombic efficiency rigorous protocol Zn ion solvation Zn metal anode
在线阅读 下载PDF
上一页 1 2 7 下一页 到第
使用帮助 返回顶部