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On Discrete Hopf Fibrations, Grand Unification Groups, the Barnes-Wall, Leech Lattices, and Quasicrystals
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作者 Carlos Castro Perelman 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2024年第4期1699-1712,共14页
A discrete Hopf fibration of S15 over S8 with S7 (unit octonions) as fibers leads to a 16D Polytope P16 with 4320 vertices obtained from the convex hull of the 16D Barnes-Wall lattice Λ16. It is argued (conjectured) ... A discrete Hopf fibration of S15 over S8 with S7 (unit octonions) as fibers leads to a 16D Polytope P16 with 4320 vertices obtained from the convex hull of the 16D Barnes-Wall lattice Λ16. It is argued (conjectured) how a subsequent 2-1 mapping (projection) of P16 onto a 8D-hyperplane might furnish the 2160 vertices of the uniform 241 polytope in 8-dimensions, and such that one can capture the chain sequence of polytopes 241,231,221,211in D=8,7,6,5dimensions, leading, respectively, to the sequence of Coxeter groups E8,E7,E6,SO(10)which are putative GUT group candidates. An embedding of the E8⊕E8and E8⊕E8⊕E8lattice into the Barnes-Wall Λ16 and Leech Λ24 lattices, respectively, is explicitly shown. From the 16D lattice E8⊕E8one can generate two separate families of Elser-Sloane 4D quasicrystals (QC’s) with H4 (icosahedral) symmetry via the “cut-and-project” method from 8D to 4D in each separate E8 lattice. Therefore, one obtains in this fashion the Cartesian product of two Elser-Sloane QC’s Q×Qspanning an 8D space. Similarly, from the 24D lattice E8⊕E8⊕E8one can generate the Cartesian product of three Elser-Sloane 4D quasicrystals (QC’s) Q×Q×Qwith H4 symmetry and spanning a 12D space. 展开更多
关键词 Division Algebras Hopf Fibrations Barnes-Wall Lattice Leech Lattice Exceptional Lie Algebras Grand unification QUASICRYSTALS
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What are the optimal mind-body therapies for cancer-related pain?A network meta-analysis
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作者 Xiuyun He Guangyuan Liang +6 位作者 Zhi Zou Siying Yu Youtian Lin Yafei Wang Yinhua Li Yuling Wang Xiaohui Hou 《Translational Exercise Biomedicine》 2025年第2期105-127,共23页
Introduction:Current international guidelines encourage cancer patients to engage in physical activity and recommend mind-body therapies(MBTs)as a method for treating cancer-related pain(CRP).However,the most effectiv... Introduction:Current international guidelines encourage cancer patients to engage in physical activity and recommend mind-body therapies(MBTs)as a method for treating cancer-related pain(CRP).However,the most effective MBTs for improving CRP in this population remain unknown.Therefore,this network meta-analysis(NMA)aimed to assess and rank the relative efficacy of different MBTs for CRP,and to conduct subgroup analyses according to different cancer types and stages of treatment.Content:Eight electronic databases were searched for randomized controlled trials(RCTs)that compared differentMBTs to improve pain in adults living with cancer.RCTs were evaluated using the Cochrane risk of bias tool.A random effects network meta-analysis was performed within a frequentist framework.Of the 4,916 articles retrieved and screened against the selection criteria.36 studies with a total 2,387 participants were eligible to be included in the analysis.Qigong demonstrated significantly greater effects than Usual care(standardized mean difference[SMD]-0.85,95% confidence interval[CI]-1.46 to -0.24),Waitlist(SMD−0.93,-1.77 to -0.08),and Massage(SMD-1.71,-3.20 to -0.23),with the highest surface under the cumulative ranking value of 86.5%,was ranked first.It was preceded by Conventional exercise(75.2%),Taichi(74.9%),with Massage having the lowest rank(7.2%).In a subgroup analysis of breast cancer,Taichi(89.6%),Conventional exercise(68.4%),and Pilates(68.3%)ranked as the top three.Summary and outlook:This network meta-analysis indicates that Qigong and Tai Chi are among the most effective mind–body therapies(MBTs)for managing cancer-related pain and may serve as complementary adjuvant treatments for patients with cancer. 展开更多
关键词 CANCER PAIN cancer-related pain mind-body therapies network meta-analysis
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Complex Field Theory: A Unifying Framework for Dark Matter and Dark Energy with the Material Universe
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作者 Hossin Abdeldayem 《Journal of Modern Physics》 2025年第1期140-151,共12页
Complex Field Theory (CFT) proposes that dark matter (DM) and dark energy (DE) are pervasive, complex fields of charged complex masses of equally positive and negative complex charges, respectively. It proposes that e... Complex Field Theory (CFT) proposes that dark matter (DM) and dark energy (DE) are pervasive, complex fields of charged complex masses of equally positive and negative complex charges, respectively. It proposes that each material object, including living creatures, is concomitant with a fraction of the charged complex masses of DM and DE in proportion to its mass. This perception provides new insights into the physics of nature and its constituents from subatomic to cosmic scales. This complex nature of DM and DE explains our inability to see DM or harvest DE for the last several decades. The positive complex DM is responsible for preserving the integrity of galaxies and all material systems. The negative complex charged DE induces a positive repelling force with the positively charged DM and contributes to the universe’s expansion. Both fields are Lorentz invariants in all directions and entangle the whole universe. The paper uses CFT to investigate zero-point energy, particle-wave duality, relativistic mass increase, and entanglement phenomenon and unifies Coulomb’s and Newton’s laws. The paper also verifies the existence of tachyons and explains the spooky action of quantum mechanics at a distance. The paper encourages further research into how CFT might resolve several physical mysteries in physics. 展开更多
关键词 Dark Energy Dark Matter Complex Field Theory Entanglement Zero-Point Energy Particle-Wave Duality Gravity unification of Coulomb’s and Newton’s Laws TACHYONS Spooky Action Effect
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Unifying the Nepal height system and China height system based on gravity frequency shift approach
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作者 K.C.Shanker Ziyu Shen Wenbin Shen 《Geodesy and Geodynamics》 2025年第2期193-202,共10页
Highly accurate international height reference frames with long-term stability,global consistency,and homogeneity are crucial for monitoring sea level variations,understanding climate change,managing disasters,and sup... Highly accurate international height reference frames with long-term stability,global consistency,and homogeneity are crucial for monitoring sea level variations,understanding climate change,managing disasters,and supporting other applications that benefit scientific research and societal well-being.Currently,there are over 100 local height reference systems worldwide.Unifying these systems is a pivotal step toward constructing international height reference frames.The method introduced in this study-the gravity frequency shift via Satellite Frequency Signal Transfer(SFST)-represents a groundbreaking relativistic geodetic approach,demonstrating its potential to surpass the constraints of conventional techniques.The advent of high-precision optical atomic clocks(OAC)with an accuracy level of 1×10^(-18) has facilitated this method's implementation.The International Association of Geodesy(IAG)has established the International Height Reference System(IHRS)and its practical realization,the International Height Reference Frame(IHRF).Our study focuses on two neighbouring height systems:the China Height System(CHS)and the Nepal Height System(NHS),separated by the Himalayas and the Xizang plateau.We aim to unify these two systems by determining the geopotential and orthometric height differences between their respective height datum stations:the Qingdao Height Datum Station(QHDS)and the Madar Height Datum Station(MHDS)using a simulation experiment with the method mentioned above.Using an OAC with an accuracy of 1×10^(-18),we identified a geopotential difference of-8.348±0.464 m^(2)s^(-2) and an orthometric height difference of 0.786±0.047 m between QHDS and MHDS.These results suggest that the introduced method could unify any two height systems with fewcentimeter-level precision,emphasizing its significance in contributing to the construction of the IHRS/IHRF with today's required precision.In summary,the SFST technique is a novel geodetic method that offers an alternative for height system unification,delivering centimeter-level precision,surpassing traditional methods,and supporting the development of the IHRF. 展开更多
关键词 Vertical reference system Gravity frequency shift SFST IHRF Height system unification
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Purchasing policy model based on components/parts unification 被引量:1
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作者 孙晓林 仲德强 +1 位作者 满大庆 宾盛 《Journal of Southeast University(English Edition)》 EI CAS 2003年第2期168-173,共6页
This paper presents a mathematical model for components/parts unification (CPU) policy. This model considers two components/parts that are functionally interchangeable but purchased from suppliers with different price... This paper presents a mathematical model for components/parts unification (CPU) policy. This model considers two components/parts that are functionally interchangeable but purchased from suppliers with different prices and quality characteristics. Because of the buyer's quality preference and suppliers' discount rates for bulky purchases, the model assists the procurement manager to determine how best to purchase the components/parts to meet its demand while minimizing the total acquisition costs. 展开更多
关键词 components/parts unification PURCHASING parametric example total acquisition cost
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Coordinate unification method of high-precision composite measurement in two dimensions 被引量:2
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作者 文信 付鲁华 +2 位作者 赵炎 张恒 王仲 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2016年第3期205-213,共9页
Multi-sensor coordinate unification in dimensional metrology is used in order to get holistic, more accurate and reliable information about a workpiece based on several or multiple measurement values from ... Multi-sensor coordinate unification in dimensional metrology is used in order to get holistic, more accurate and reliable information about a workpiece based on several or multiple measurement values from one or more sensors. Because of the problem that standard ball is deficient as a standard artifact in the coordinate unification of high-precision composite measurement in two dimensions (2D) , a new method is proposed in this paper which uses angle gauge blocks as standard artifacts to achieve coordinate unification between the image sensor and the tactile probe. By comparing the standard ball with the angle gauge block as a standard artifact, theoretical analysis and experimental results are given to prove that it is more precise and more convenient to use angle gauge blocks as standard artifacts to achieve coordinate unification of high-precision composite measurement in two dimensions. 展开更多
关键词 high-precision composite measurement image sensor tactile probe coordinate unification angle gauge block
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Unification and Harmonization in True Color Image City Map 被引量:3
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作者 ZHAO Xi PANG Xiaoping +1 位作者 ZHANG Shengli ZHANG Xiang 《Geo-Spatial Information Science》 2007年第1期75-78,共4页
True color image city map is a sort of new-style map which combines the high resolution image and map symbols and shows both advantages in visualization. At the same time, the map unification and harmonization should ... True color image city map is a sort of new-style map which combines the high resolution image and map symbols and shows both advantages in visualization. At the same time, the map unification and harmonization should be taken into account dur-ing the design process, since some visual conflicts appear when map symbols overlaid on the true color image. The objective of this research is to explore the rules in the process of true color image city map design based on chromatic and aesthetic knowledge. At the end, taking the Image Atlas of Guangzhou as an example, image color adjustment, road network presentation, and symbol de-signing issues will be discussed in the application. 展开更多
关键词 true color image city map map design unification HARMONIZATION
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Unification of Gravitational and Electromagnetic Fields Using Gauge Symmetry 被引量:1
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作者 Young Hwan Yun Kiho Jang Yong Kiel Sung 《Journal of High Energy Physics, Gravitation and Cosmology》 2021年第1期344-351,共8页
A new method for the unification of gravitational and electromagnetic forces is proposed. Previously, Kaluza-Klein theory dealt with the unification, but it has not yet been established as a complete theory. The main ... A new method for the unification of gravitational and electromagnetic forces is proposed. Previously, Kaluza-Klein theory dealt with the unification, but it has not yet been established as a complete theory. The main reason for this is that Kaluza-Klein theory has various contradictions due to the use of a 5-dimensional metric tensor. In this paper, unlike the conventional method, various equations related to gravitational and electromagnetic force are derived without any contradiction by processing equations having gauge symmetry within a 4-dimensional range. In this process, we propose that Maxwell’s equations for the electromagnetic force are expressed more simply and implicitly than the existing tensor form. Using the gauge symmetry, it shows that electromagnetic force can exist in single metric tensor along with gravity. In addition, since geodesic equations can be derived in the form of coordinate transformation, it has been shown that they are consistent with the existing equations. As a result, it has shown that they are consistent with the existing physical equations without contradiction. 展开更多
关键词 GRAVITY Electromagnetic Field Kaluza-Klein Theory unification Gauge Symmetry RELATIVITY
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"universe collapse model"and its roles in the unification of four fundamental forces and the origin and the evolution of the universe 被引量:1
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作者 Jiapei Dai 《Natural Science》 2012年第4期199-203,共5页
To unify the four known fundamental forces and provide an explanation for the origin and the evolution of the universe are two long-term goals of theoretical physics. Here a “universe collapse model” has been propos... To unify the four known fundamental forces and provide an explanation for the origin and the evolution of the universe are two long-term goals of theoretical physics. Here a “universe collapse model” has been proposed. The universe consists of Matter and No-matter. No-matter is the universal energy that constructs a consistent universe field, presenting a spiral wave motion at the speed of light at the small scale. The partial collapse of the universal energy forms the particles of the universal energy in a variety of sizes, which are called as the elementary particles. These elementary particles form atom and matter, which construct the galaxies. The collapse of the universe field induces the formation of the universe collapse potential (UCP) and universe collapse force (UCF), and the later is represented by four different aspects of the fundamental forces at the large or small scales. The mathematical equation and the derivation of UCP and UCF are described, and possible experimental tests are also suggested. Therefore, this new model may give a novel explanation for the unification of four fundamental forces and the origin and the evolution of the universe. 展开更多
关键词 UNIVERSE COLLAPSE MODEL Field Theories Beyond Standard MODEL String Field Theory Grand unification MODEL FUNDAMENTAL FORCES Elementary Particles The ORIGIN and Evolution of UNIVERSE
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Unification of Gravitational and Electromagnetic Fields in Curved Space-Time Using Gauge Symmetry of Bianchi Identities 被引量:2
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作者 Young Hwan Yun Kiho Jang 《Journal of High Energy Physics, Gravitation and Cosmology》 2021年第3期1202-1212,共11页
This paper deals with the generalization of the linear theory of the unification of gravitational and electromagnetic fields using 4-dimensional gauge symmetry in order to solve the contradictions from the Kaluza-Klei... This paper deals with the generalization of the linear theory of the unification of gravitational and electromagnetic fields using 4-dimensional gauge symmetry in order to solve the contradictions from the Kaluza-Klein theory’s unification of the gravitational and electromagnetic fields. The unification of gravitational and electromagnetic fields in curved space-time starts from the Bianchi identity, which is well known as a mathematical generalization of the gravitational equation, and by using the existing gauge symmetry condition, equations for the gravitational and electromagnetic fields can be obtained. In particular, the homogeneous Maxwell’s equation can be obtained from the first Bianchi identity, and the inhomogeneous Maxwell’s equation can be obtained from the second Bianchi identity by using Killing’s equation condition of the curved space-time. This paper demonstrates that gravitational and electromagnetic fields can be derived from one equation without contradiction even in curved space-time, thus proving that the 4-dimensional metric tensor using the gauge used for this unification is more complete. In addition, geodesic equations can also be derived in the form of coordinate transformation, showing that they are consistent with the existing equations, and as a result, they are consistent with the existing physical equations. 展开更多
关键词 Bianchi Identity Killing’s Equation Maxwell’s Equation GRAVITY Kaluza-Klein Theory unification Gauge Symmetry RELATIVITY
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G-CPT Symmetry of Quantum Emergence and Submergence—An Information Conservational Multiagent Cellular Automata Unification of CPT Symmetry and CP Violation for Equilibrium-Based Many-World Causal Analysis of Quantum Coherence and Decoherence 被引量:2
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作者 Wen-Ran Zhang 《Journal of Quantum Information Science》 2016年第2期62-97,共36页
An equilibrium-based YinYang bipolar dynamic Generalization of CPT (G-CPT) symmetry is introduced based on energy/information conservational quantum emergence-submergence. As a bottleneck of quantum computing, quantum... An equilibrium-based YinYang bipolar dynamic Generalization of CPT (G-CPT) symmetry is introduced based on energy/information conservational quantum emergence-submergence. As a bottleneck of quantum computing, quantum decoherence or collapse has been plaguing quantum mechanics for decades. It is suggested that the crux of the problem can trace its origin back to the incompleteness of CPT symmetry due to the lack of holistic representation for equilibrium-based bipolar coexistence. In this work, the notion of quantum emergence-submergence is coined as two opposite processes with bipolar energy/information conservation. The new notion leads to G-CPT symmetry supported by a Bipolar Quantum Cellular Automata (BQCA) interpretation of quantum mechanics. It is shown that the new interpretation further leads to the unification of electromagnetic particle-antiparticle bipolarity and gravitational action-reaction bipolarity as well as CPT symmetry and CP violation into a philosophically, geometrically and logically different quantum gravity theory. On one hand, G-CPT symmetry enables a Bipolar Quantum Agent (BQA) to emerge as a bipolar quantum superposition or entanglement coupled to a globally coherent BQCA;on the other hand, G-CP violation supports a causal theory of BQA submergence or decoupling from the global coherence. In turn, BQAs can submerge from one world but emerge in another within YinYang bipolar quantum geometry. It is suggested that all logical, physical, social, biological and mental worlds are bipolar quantum entangled under G-CPT symmetry. It is contended that G-CPT symmetry constitutes an analytical paradigm of quantum mechanics and quantum gravity—a fundamental departure from “what goes around comes around”. The new paradigm leads to a number of predictions and challenges. 展开更多
关键词 Negative-Positive Energy/Information unification Information Conservation Equilibrium-Based Generalization Complete Background-Independence Bipolar Quantum Geometry Bipolar Quantum Superposition Quantum Emergence-Submergence Quantum Coherence-Decoherence Classical World and Quantum World Symmetrical Measurement
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The Coupling Constants for.an Electroweak Model with an SU(4)PS ×SU(4)EW Unification Symmetry
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作者 A.E. Bernardini 《Communications in Theoretical Physics》 SCIE CAS CSCD 2007年第5期879-882,共4页
We introduce the sequence of spontaneous symmetry breaking of a coupling between Pati-Salam and electroweak symmetries SU( 4 )PS × SU( 4 )EW in order to establish a mathematically consistent relation among th... We introduce the sequence of spontaneous symmetry breaking of a coupling between Pati-Salam and electroweak symmetries SU( 4 )PS × SU( 4 )EW in order to establish a mathematically consistent relation among the coupling constants at grand unification energy scale. With the values of baryon minus lepton quantum numbers of known quarks and leptons, by including right-handed neutrinos, we can lind the mixing angle relations at different energy levels up to the electromagnetic U(1)EM scale. 展开更多
关键词 electroweak unification gauge symmetry coupling constants
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Coordination mechanism of developing unification of urban agglomeration: A case study of south Sichuan urban agglomerations
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作者 LONG Zhi ZENG Shao-lun 《Ecological Economy》 2016年第3期269-276,共8页
With the expansion of the urbanization, the urban agglomeration is forming in the region and showing a unification trend. The development of urban agglomeration and its unification depends on the coordination of the d... With the expansion of the urbanization, the urban agglomeration is forming in the region and showing a unification trend. The development of urban agglomeration and its unification depends on the coordination of the division of labor. It is significant to the further development of urban agglomeration that the coordination mechanism was constructed. Taking the south Sichuan urban agglomerations(SSUA) as an example, the research analyzes the current situation and problems of cities' unification, studies the industrial distribution layout and designs the framework of the regionally coordinated development. Then the author constructs the coordination mechanism of urban agglomeration development and presents strategies for the coordinated development of urban agglomeration and its unification. 展开更多
关键词 urban agglomeration cities’ unification coordinating mechanism
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Axiomatic Affine Unification with Large Gravitational Vector Field Yields Vector-Metric Theory of Gravitation, Electromagnetism and Field Description of Mass-Particles
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作者 Boris Hikin 《Journal of High Energy Physics, Gravitation and Cosmology》 2017年第2期178-247,共70页
Under assumption of existence of extremely large gravitational vector field, this paper proposes a road map for building an Axiomatic Eddington Affine Unification theory yielding both Maxwell’s electromagnetism and V... Under assumption of existence of extremely large gravitational vector field, this paper proposes a road map for building an Axiomatic Eddington Affine Unification theory yielding both Maxwell’s electromagnetism and Vector-metric theory of gravitation, in which inverse of the square-magnitude of the vector serves as Newton’s gravitational constant. The dependence of the vector’s magnitude with distance may offer an explanation of both Pioneer anomaly and “star rotation abnormality” in some Galaxies. In addition, the theory provides formalism for a classical description of atomic particles (such as protons and electrons) with highly non-linear equations and highly localized solutions. The existence of large Gravitational vector field can, for some variables (sub-fields), lead to elliptical type?differential equations (unlike in Maxwell’s electromagnetism, which is hyperbolic ), that by its nature forbids the existence independent waves and their propagation. Proposed Unified field description might provide the avenue for smooth transition to the world Quantum physics. 展开更多
关键词 General Relativity AFFINE unification Vector-Metric GRAVITATION GRAVITATIONAL Constant Emerging GRAVITATION LARGE GRAVITATIONAL FIELD Dark Matter
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Plank Scale with Siva’s Constant “K”—A New Road to Grand Unification
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作者 Siva Prasad Kodukula 《Journal of Modern Physics》 2018年第6期1179-1194,共16页
Based on Vd = K equation and the consideration that maximum velocity is “velocity of light”, diameter of a space time for a particular fundamental force has been calculated. With Siva’s classical equation for space... Based on Vd = K equation and the consideration that maximum velocity is “velocity of light”, diameter of a space time for a particular fundamental force has been calculated. With Siva’s classical equation for space time, the quantity of fundamental force has been calculated in terms of relative energy with photon. This has been converted into relative force and the relative forces interpreted in terms of coupling constants of fundamental forces. All the fundamental forces are manifestation of space time material only. Space time will be different for different fundamental forces and their elementary force carrying particles. Specially, it has elaborated the difference between mass and energy for gravity space time. A generalized equation of space time and coupling constants has been derived. This equation can be used to calculate the space time parameters of other fundamental forces by knowing the coupling constant and vice versa. Space time parameters will be different for fundamental forces. In order to keep the parameters such as c,G,h,lp,tp and mp applicable to all other fundamental forces, a new parameter Siva’s constant “K” has been introduced. Thus all the observations are based on “K” and transformation is possible by a new additional parameter “K” such that c=h=G=K=1 instead of c=h=G=1. Ultimately, this paper may be a ground work to discuss lot of issues such as “consciousness” and “decoding of quantum information” in future. 展开更多
关键词 RELATIVITY Quantum Mechanics GRAVITATION Siva’s CONSTANT “K” Plank SCALE GRAND unification Coupling CONSTANTS
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What can Remove the Obstacles from the Process of Asian Unification
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作者 Chaocheng Yao 《Chinese Business Review》 2005年第8期9-13,21,共6页
Presently,the regional economic cooperation in Asia is developing fast and well with the ASEAN as an axis and with the proactive participation of major Asian nations such as China,3apan,Korea and India.While envisagin... Presently,the regional economic cooperation in Asia is developing fast and well with the ASEAN as an axis and with the proactive participation of major Asian nations such as China,3apan,Korea and India.While envisaging the bright prospect,the unification process,however,is destined to encounter some obstacles and difficulties.By analyzing the hindrance,as well the reasons why Asia lags far behind Europe in unification,the author believes that Asian nations should draw on the lessons and experiences of European countries and learn their principle of subsidiary(bottom-up approaches),which may serve as the key solution for Asia to overcome the impending obstructions. 展开更多
关键词 obstacles process of Asian unification SUBSIDIARY
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China's Compulsory Product Certification System (Four Unification)
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《China's Foreign Trade》 2002年第1期15-15,共1页
On December 17, 2001, the State General Administration for Quality Supervision and Inspection and Quarantine and the Certification and Accreditation Administration co-held the news release conference in the Great Hall... On December 17, 2001, the State General Administration for Quality Supervision and Inspection and Quarantine and the Certification and Accreditation Administration co-held the news release conference in the Great Hall of the People for publicizing the laws of the National Compulsory Product Certification System ("Four Unification"). This is a 展开更多
关键词 Four unification 口口 China’s Compulsory Product Certification System
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Social Equity: View from Pension System Unification
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作者 Wen Lu 《International English Education Research》 2015年第6期80-82,共3页
With the aging process, people been looked after properly in the old age has already become an important index to the national happiness index. Nowadays, government has a increasingly clear roadmap in promoting the de... With the aging process, people been looked after properly in the old age has already become an important index to the national happiness index. Nowadays, government has a increasingly clear roadmap in promoting the development of pension system. Pension system unification refers to the same pension system for workers in public institutions and enterprises. It is a relative concept to the dual pension system. It has positive effect on social equity. But it also has many problems. In this article, author explained the relation between pension system unification and social equity on the basic of analyzing viewpoints of several scholars. And make comments by extending it and analyzing it. 展开更多
关键词 Pension System unification Dual Pension System Social Equity
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Reference unification and reference linking:Concept,functionalities and inhibiting elements.A case study of Chinese Science Citation Database
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作者 ZENG Yan LIU Xiaomin 《Chinese Journal of Library and Information Science》 2008年第Z1期16-29,共14页
In comparing reference unification to reference linking,the authors found that reference linking yield similar result as that of reference unification.An investigative study was conducted by these authors at Chinese S... In comparing reference unification to reference linking,the authors found that reference linking yield similar result as that of reference unification.An investigative study was conducted by these authors at Chinese Science Citation Database(CSCD)of National Science Library(NSL)of the ChineseAcademy of Sciences(CAS),it was found that there were three inhibiting elements in invoking a reference unification solution and the same is true for a reference linking solution.Firstly,it was difficult to define a minimum set of data elements for matching.Secondly,it had a problem of data inaccuracy and/or data incompleteness.Thirdly,it was hard to determine an appropriate linking result that produced the desired document for the user.Thus these authors suggest that getting Digital Object Identifier(DOI)for each journal article is a good way to bring about reference unification and also to improve metadata quality simultaneously at the same time.Therefore,DOI has a pivotal role to play in terms of bringing about reference unification and/or a reference linking. 展开更多
关键词 Reference linking Reference unification Inhibiting element Implementation mechanism METADATA
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Unification Might Be Achievable by a Hypothesis of Instantaneous Time-Jumps during Photon and Graviton Interactions (A Brief Note)
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作者 Eugene Terry Tatum 《Journal of Modern Physics》 2022年第5期730-735,共6页
Quantum theory according to the Copenhagen interpretation holds that, when a quantum interaction is observed (i.e., “measured”), the observer’s measuring devices temporarily become a part of the quantum system. Rel... Quantum theory according to the Copenhagen interpretation holds that, when a quantum interaction is observed (i.e., “measured”), the observer’s measuring devices temporarily become a part of the quantum system. Relativity theory holds that the event clock of the absorbed or emitted photon or graviton is frozen in time relative to all clocks outside the observed system. If we harmonize both theories, this would appear to imply that time continuity must be interrupted at each instant of observed photon or graviton interaction with matter. It is as if a segment of space-time is clipped out during each such observed interaction. If so, we must dispense with the notion of an absolutely smooth and continuous space-time and replace it with an observation-dependent, discontinuous, relativistic/quantum space-time. Mathematical physicists should be able to model this hypothesis (call it a “time-jump hypothesis”) and its inherent discontinuous space-time in their further efforts at unification. 展开更多
关键词 Time-Jump Hypothesis unification Relativity Theory Quantum Field Theory Relativistic/Quantum Space-Time Instantaneous Energy Transition Quantum Measurement Problem Quantum Non-Locality
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