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Perfecting the Service Network for Enterprises with Joint Efforts
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作者 Audrey Guo 《China's Foreign Trade》 2023年第1期22-25,共4页
"The year of 2022 marked the70th anniversary of the founding of the China Council for the Promotion of International Trade(CCPIT),and it was also a milestone in the development history of trade promotion.Under th... "The year of 2022 marked the70th anniversary of the founding of the China Council for the Promotion of International Trade(CCPIT),and it was also a milestone in the development history of trade promotion.Under the strong leadership of the Central Committee of the Communist Party of China(CPC) with Comrade Xi Jinping at its core,the national trade promotion system faced up to difficulties,forged ahead. 展开更多
关键词 PROMOTION PERFECT FOUNDING
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Numerical investigation of the effects of soil-structure and granular material-structure interaction on the seismic response of a flat-bottom reinforced concrete silo
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作者 Sonia Benkhellat Mohammed Kadri Abdelghani Seghir 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2024年第3期609-623,共15页
In this work,a numerical study of the effects of soil-structure interaction(SSI)and granular material-structure interaction(GSI)on the nonlinear response and seismic capacity of flat-bottomed storage silos is conducte... In this work,a numerical study of the effects of soil-structure interaction(SSI)and granular material-structure interaction(GSI)on the nonlinear response and seismic capacity of flat-bottomed storage silos is conducted.A series of incremental dynamic analyses(IDA)are performed on a case of large reinforced concrete silo using 10 seismic recordings.The IDA results are given by two average IDA capacity curves,which are represented,as well as the seismic capacity of the studied structure,with and without a consideration of the SSI while accounting for the effect of GSI.These curves are used to quantify and evaluate the damage of the studied silo by utilizing two damage indices,one based on dissipated energy and the other on displacement and dissipated energy.The cumulative energy dissipation curves obtained by the average IDA capacity curves with and without SSI are presented as a function of the base shear,and these curves allow one to obtain the two critical points and the different limit states of the structure.It is observed that the SSI and GSI significantly influence the seismic response and capacity of the studied structure,particularly at higher levels of PGA.Moreover,the effect of the SSI reduces the damage index of the studied structure by 4%. 展开更多
关键词 reinforced concrete silo perfectly matched layers soil-structure interaction granular material-structure interaction effective seismic input method damage index
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Bringing the China Association of Insurance Industry Into Play, Perfecting the Control System of China's Insurance Industry
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《China's Foreign Trade》 2001年第9期23-23,共1页
关键词 Bringing the China Association of Insurance Industry Into Play perfecting the Control system of China’s Insurance Industry
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Mammut:The brand's path to innovation
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《China Textile》 2024年第2期15-15,共1页
The perfect jacket for anyone looking for a technical allrounder.The Alto Guide is perfect for everything from day hikes to first adventures in mountaineering.Durable stretch Mammut DRYtechnology^(TM)Pro 3-layer mater... The perfect jacket for anyone looking for a technical allrounder.The Alto Guide is perfect for everything from day hikes to first adventures in mountaineering.Durable stretch Mammut DRYtechnology^(TM)Pro 3-layer material is breathable,waterproof and PFC-free.Multiple features,which include backpack-compatible front pockets,a helmet-compatible hood with reinforced peak,and a 2-way zipper for easy climbing harness access,make the hard-wearing Alto Guide an ideal weatherproof jacket for mountain and hiking tours.A smart choice for your mountain sport adventures:technical,functional and durable. 展开更多
关键词 PERFECT LOOKING SMART
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The Absence of “Perfect Induction”in the Science
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作者 Corrado Giannantoni 《Journal of Applied Mathematics and Physics》 2024年第5期1930-1947,共18页
The present paper is finalized to show that the Science, even if considered in its two different Phenomenological Approaches at present known, is unable to assert that: “Thinks are like that”. This is because both t... The present paper is finalized to show that the Science, even if considered in its two different Phenomenological Approaches at present known, is unable to assert that: “Thinks are like that”. This is because both the two Scientific Approaches previously mentioned have not the property of “the perfect induction”. Consequently, although they can even reach an experimental confirmation of the theoretical results, and thus a “valid description” of the various phenomena of the surrounding world, such a description has not an “absolute value”. In fact, it always and only has an “operative validity”, that is, it exclusively and solely refers to an “experimental point of view”. This means that such an “operative validity” cannot represent the basis for a logical process characterized by a “perfect induction”. In addition, the Traditional Scientific Approach is also characterized by “Insoluble” Problems, “Intractable Problems”, Problems with “drifts”, which could generally be termed as “side effects”. On the other hand, the same com-possible Scientific Approach based on the Emerging Quality of Self-Organizing Systems, also presents its “Emerging Exits”. Consequently, none of the two mentioned scientific Approaches has the “gift” of “the perfect induction”. However, there are significant differences between the two. Differences that may “suggest” the most appropriate choice among them for an “operative point of view”. This conclusion will be com-proved by considering, with particular reference, both the “side effects”, which are related to the Traditional Approach and, on the other hand, the “Emerging Exits”, which specifically pertain to the new Scientific Approach based on the Emerging Quality of Self-Organizing Systems. 展开更多
关键词 Perfect Induction Maximum Ordinality Principle Incipient Differential Calculus
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Whole Perfect Vectors and Fermat’s Last Theorem
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作者 Ramon Carbó-Dorca 《Journal of Applied Mathematics and Physics》 2024年第1期34-42,共9页
A naïve discussion of Fermat’s last theorem conundrum is described. The present theorem’s proof is grounded on the well-known properties of sums of powers of the sine and cosine functions, the Minkowski norm de... A naïve discussion of Fermat’s last theorem conundrum is described. The present theorem’s proof is grounded on the well-known properties of sums of powers of the sine and cosine functions, the Minkowski norm definition, and some vector-specific structures. 展开更多
关键词 Fermat’s Last theorem Whole Perfect Vectors Sine and Cosine Functions Natural and Rational Vectors Fermat Vectors
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An End-to-End Authentication Scheme for Healthcare IoT Systems Using WMSN
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作者 Shadi Nashwan 《Computers, Materials & Continua》 SCIE EI 2021年第7期607-642,共36页
The healthcare internet of things(IoT)system has dramatically reshaped this important industry sector.This system employs the latest technology of IoT and wireless medical sensor networks to support the reliable conne... The healthcare internet of things(IoT)system has dramatically reshaped this important industry sector.This system employs the latest technology of IoT and wireless medical sensor networks to support the reliable connection of patients and healthcare providers.The goal is the remote monitoring of a patient’s physiological data by physicians.Moreover,this system can reduce the number and expenses of healthcare centers,make up for the shortage of healthcare centers in remote areas,enable consultation with expert physicians around the world,and increase the health awareness of communities.The major challenges that affect the rapid deployment and widespread acceptance of such a system are the weaknesses in the authentication process,which should maintain the privacy of patients,and the integrity of remote medical instructions.Current research results indicate the need of a flexible authentication scheme.This study proposes a scheme with enhanced security for healthcare IoT systems,called an end-to-end authentication scheme for healthcare IoT systems,that is,an E2EA.The proposed scheme supports security services such as a strong and flexible authentication process,simultaneous anonymity of the patient and physician,and perfect forward secrecy services.A security analysis based on formal and informal methods demonstrates that the proposed scheme can resist numerous security-related attacks.A comparison with related authentication schemes shows that the proposed scheme is efficient in terms of communication,computation,and storage,and therefore cannot only offer attractive security services but can reasonably be applied to healthcare IoT systems. 展开更多
关键词 Healthcare IoT systems wireless medical sensor networks mutual authentication service anonymity service perfect forward secrecy service COVID-19
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Secure and Anonymous Three-Factor Authentication Scheme for Remote Healthcare Systems
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作者 Munayfah Alanazi Shadi Nashwan 《Computer Systems Science & Engineering》 SCIE EI 2022年第8期703-725,共23页
Wireless medical sensor networks(WMSNs)play a significant role in increasing the availability of remote healthcare systems.The vital and physiological data of the patient can be collected using the WMSN via sensor nod... Wireless medical sensor networks(WMSNs)play a significant role in increasing the availability of remote healthcare systems.The vital and physiological data of the patient can be collected using the WMSN via sensor nodes that are placed on his/her body and then transmitted remotely to a healthcare professional for proper diagnosis.The protection of the patient’s privacy and their data from unauthorized access is a major concern in such systems.Therefore,an authentication scheme with a high level of security is one of the most effective mechanisms by which to address these security concerns.Many authentication schemes for remote patient monitoring have been proposed recently.However,the majority of these schemes are extremely vulnerable to attacks and are unsuitable for practical use.This paper proposes a secure three-factor authentication scheme for a patient-monitoring healthcare system that operates remotely using a WMSN.The proposed authentication scheme is formally verified using the Burrows,Abadi and Needham’s(BAN)logic model and an automatic cryptographic protocol verifier(ProVerif)tool.We show that our authentication scheme can prevent relevant types of security breaches in a practical context according to the discussed possible attack scenarios.Comparisons of the security and performance are carried out with recently proposed authentication schemes.The results of the analysis show that the proposed authentication scheme is secure and practical for use,with reasonable storage space,computation,and communication efficiency. 展开更多
关键词 Mutual authentication biometric feature perfect forward secrecy user anonymity proVerif tool BAN logic model
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Continuing to Perfect the Quality System
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作者 Xin Wen 《China's Foreign Trade》 1997年第10期33-34,共2页
Afirst-class forwarding agent company approved by the Ministry of Foreign Trade and Economic Cooperation,the Ministry of Communication, the General Customs and the Civil Aviation Administration of China, the Shanghai ... Afirst-class forwarding agent company approved by the Ministry of Foreign Trade and Economic Cooperation,the Ministry of Communication, the General Customs and the Civil Aviation Administration of China, the Shanghai Jinhai Jieya International Forwarding Co. Ltd comprises the Shanghai Haigang Industrial General Company,Shanghai Jin Jiang Associated Corporation (Group) and Hongkong Jieya Air Freight Forwarding Corporation, in the form of a joint venture. 展开更多
关键词 Continuing to Perfect the Quality system PROJECT THAN
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Analysis on the Reform Path of the Hierarchical Treatment System for Juvenile Delinquents in China
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作者 Lv Hongjiao 《Contemporary Social Sciences》 2021年第6期53-62,共10页
Although it has stipulated a treatment system for juvenile delinquents in the existing law of China,the related provisions are scattered throughout different legal norms and need to be integrated and perfected.The exi... Although it has stipulated a treatment system for juvenile delinquents in the existing law of China,the related provisions are scattered throughout different legal norms and need to be integrated and perfected.The existing treatment of juvenile delinquents,including administrative treatment and judicial treatment,mainly faces the following problems:(a)The treatment measures are too rough and simple to effectively combine punishment with leniency effectively;(b)The hierarchical treatment measures are not perfect enough procedurally;(c)The non-criminal treatment measures do not produce the desired effect.Based on a good understanding of the basic connotations of the hierarchical treatment system for juvenile delinquents,it is necessary to take the following steps:(a)Treat the juvenile delinquents in appropriate ways according to the subject,specific content,and severity of juvenile delinquencies;(b)Take highly-targeted and flexible treatment measures at different stages of criminal proceedings,namely,take criminal coercive measures against juvenile delinquents in a prudent manner and impose criminal punishments against them in a relatively lenient manner,to better help them return to society. 展开更多
关键词 juvenile delinquent hierarchical treatment PROBLEM PERFECTION
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Mexico:Promoting the Winter Olympics and Perfecting‘Happy Chinese New Year’
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作者 Sun Zhengfang 《China & The World Cultural Exchange》 2022年第2期43-44,共2页
During the Spring Festival in 2022,China Cultural Center in Mexico focused on the themes of Winter Olympics with Ice and Snow,the 50th anniversary of the establishment of diplomatic relations between China and Mexico,... During the Spring Festival in 2022,China Cultural Center in Mexico focused on the themes of Winter Olympics with Ice and Snow,the 50th anniversary of the establishment of diplomatic relations between China and Mexico,friendship between the two countries,etc.,and cooperated with 20-plus Chinese and Mexican institutions to hold 11 categories of 180-plus Spring Festival celebration activities,such as Year of the Tiger Costume Contest,Happy Spring Festival Quiz Show,the 8th Children's Painting Competition:China in My Imagination in the theme of Winter Olympics and ice&snow sports. 展开更多
关键词 PERFECT Mexico WINTER
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Suggestions on Perfecting Index Systems of Building a Well-Off Society in an All-Round Way
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作者 lian LV Yi Li 《Sociology Study》 2014年第6期481-487,共7页
The index systems are not only the tools to evaluate existing practice results, but also the guides to the future development direction and development way of practical activities. "Well-off society" is a relatively... The index systems are not only the tools to evaluate existing practice results, but also the guides to the future development direction and development way of practical activities. "Well-off society" is a relatively vague concept, and the contents of it ceaselessly change with the advancement of society and the development of productivity. Now the construction of a well-off society in an all-round way enters a critical stage, so the original evaluation standards must change with gradual advancement of the construction goal of a well-off society. So it is very necessary for us to build a comprehensive evaluation index system and make it better and better to provide effective statistical consultation and statistical supervision for constructing a well-off society in an all-round way. This paper attempts to analyze the current evaluation index system, then puts forward the general thinking and flame work of the index system of building a well-off society in an all-round way. 展开更多
关键词 Comprehensive construction of a well-off society index systems PERFECTION
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TO WELCOME THE ERA OF THE KNOWLEDGE ECONOMY BY PERFECTING OUR OWN SELF-DEVELOPMENT CAPACITY
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作者 Institute of Microbiology, CAS 《Bulletin of the Chinese Academy of Sciences》 1999年第2期97-99,共3页
All staff members at our Academy praise the key decision made by the Party’s leading group at the CAS to implement the Program of Knowledge Innovation. Also, they believe the move offers both our Academy and its rese... All staff members at our Academy praise the key decision made by the Party’s leading group at the CAS to implement the Program of Knowledge Innovation. Also, they believe the move offers both our Academy and its research institutes a precious opportunity for rejuvenating China’ s S&T endeavors at the turn of the century. Our Institute has a 展开更多
关键词 OUR TO WELCOME the ERA OF the KNOWLEDGE ECONOMY BY perfecting OUR OWN SELF-DEVELOPMENT CAPACITY INNOVATION
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Forget the past, there is no future
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作者 Xiong-Zhi Wu 《Traditional Medicine Research》 2023年第1期43-43,共1页
Traditional medicine has been gradually accumulated and perfected in the long history of human development.However,a large number of traditional medical studies today ignore the history and role of the research object... Traditional medicine has been gradually accumulated and perfected in the long history of human development.However,a large number of traditional medical studies today ignore the history and role of the research object,and the research results are difficult to integrate into traditional medicine.There is a natural gap and divide between traditional medical researchers and practitioners.A traditional research result will either be absorbed by modern medicine,or disappear in massive literature information,and only a few research results can be absorbed by traditional medicine itself.Traditional Medicine Research has always encouraged and helped researchers to briefly describe the historical evolution of the research subject since its inception,and promoted the development and innovation of traditional medicine research based on inheritance. 展开更多
关键词 MASSIVE PERFECT INTEGRATE
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Theory of complex-coordinate transformation acoustics for non-Hermitian metamaterials
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作者 李澔翔 谭杨 +1 位作者 杨京 梁彬 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第9期282-292,共11页
Transformation acoustics(TA)has emerged as a powerful tool for designing several intriguing conceptual devices,which can manipulate acoustic waves in a flexible manner,yet their applications are limited in Hermitian m... Transformation acoustics(TA)has emerged as a powerful tool for designing several intriguing conceptual devices,which can manipulate acoustic waves in a flexible manner,yet their applications are limited in Hermitian materials.In this work,we propose the theory of complex-coordinate transformation acoustics(CCTA)and verify the effectiveness in realizing acoustic non-Hermitian metamaterials.Especially,we apply this theory for the first time to the design of acoustic parity-time(PT)and antisymmetric parity-time(APT)metamaterials and demonstrate two distinctive examples.First,we use this method to obtain the exceptional points(EPs)of the PT/APT system and observe the spontaneous phase transition of the scattering matrix in the transformation parameter space.Second,by selecting the Jacobian matrix's constitutive parameters,the PT/APT-symmetric system can also be configured to approach the zero and pole of the scattering matrix,behaving as an acoustic coherent perfect absorber and equivalent laser.We envision our proposed CCTAbased paradigm to open the way for exploring the non-Hermitian physics and finding application in the design of acoustic functional devices such as absorbers and amplifiers whose material parameters are hard to realize by using the conventional transformation method. 展开更多
关键词 complex-coordinate transformation acoustics acoustic non-Hermitian metamaterials exceptional points acoustic coherent perfect absorber and equivalent laser
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Reduced Imaging Time and Improved Image Quality of 3D Isotropic T2-Weighted Magnetic Resonance Imaging with Compressed Sensing for the Female Pelvis
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作者 Hao Mei Feng Xiao Ming Deng 《Journal of Beijing Institute of Technology》 EI CAS 2023年第5期579-585,共7页
This study is to compare three-dimensional(3D)isotropic T2-weighted magnetic resonance imaging(MRI)with compressed sensing-sampling perfection with application optimized contrast(CS-SPACE)and the conventional image(3D... This study is to compare three-dimensional(3D)isotropic T2-weighted magnetic resonance imaging(MRI)with compressed sensing-sampling perfection with application optimized contrast(CS-SPACE)and the conventional image(3D-SPACE)sequence in terms of image quality,estimated signal-to-noise ratio(SNR),relative contrast-to-noise ratio(CNR),and the lesions’conspicuous of the female pelvis.Thirty-six females(age:51,28-73)with cervical carcinoma(n=20),rectal carcinoma(n=7),or uterine fibroid(n=9)were included.Patients underwent magnetic resonance(MR)imaging at a 3T scanner with the sequences of 3D-SPACE,CS-SPACE,and twodimensional(2D)T2-weighted turbo-spin echo(TSE).Quantitative analyses of estimated SNR and relative CNR between tumors and other tissues,image quality,and tissue conspicuity were performed.Two radiologists assessed the difference in diagnostic findings for carcinoma.Quantitative values and qualitative scores were analyzed,respectively.The estimated SNR and the relative CNR of tumor-to-muscle obturator internus,tumor-to-myometrium,and myometrium-to-muscle obturator internus was comparable between 3D-SPACE and CS-SPACE.The overall image quality and the conspicuity of the lesion scores of the CS-SPACE were higher than that of the 3D-SPACE(P<0.01).The CS-SPACE sequence offers shorter scan time,fewer artifacts,and comparable SNR and CNR to conventional 3D-SPACE,and has the potential to improve the performance of T2-weighted images. 展开更多
关键词 compressed sensing sampling perfection with application-oriented contrasts(SPACE)using variable flip angle evolutions three-dimensional(3D)imaging magnetic resonance imaging(MRI) PELVIS
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Why Practice Makes Perfect Sense: the Past, Present and Potential Future of the PPP Paradigm in Language Teacher Education
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作者 Jason Anderson 《基础教育外语教学研究》 2023年第2期29-34,共6页
(接上期)Context 3:EFL and ESOL learners at lower levels of achievement The third context relates largely to my own teaching in the adult EFL and ESC OL sectors in the UK,where I make use of PPP with classes of learner... (接上期)Context 3:EFL and ESOL learners at lower levels of achievement The third context relates largely to my own teaching in the adult EFL and ESC OL sectors in the UK,where I make use of PPP with classes of learners that tend towards the following characteristics:1.low levels of overall language proficiency;2.low language learning aptitude;3.low levels of literacy;4.low levels of learner autonomy;5.limited experience of formal classroom study;6.specific educational needs. 展开更多
关键词 OWN PERFECT FORMAL
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Trend, Mechanism and Path: Analysis of the Integrated Development of Henan Intangible Cultural Heritage and Tourist Industry with Digital Empowerment
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作者 Liu Yingji Hou Yi 《China & The World Cultural Exchange》 2023年第4期12-15,共4页
Up till now,Henan has established a relatively perfect Intangible Cultural Heritage listing system and protection system,which lays a foundation for the digitalization of Intangible Cultural Heritage.Meanwhile,Henan h... Up till now,Henan has established a relatively perfect Intangible Cultural Heritage listing system and protection system,which lays a foundation for the digitalization of Intangible Cultural Heritage.Meanwhile,Henan has vigorously carried out research on the activation of digital Intangible Cultural Heritage,resulting in improving the capabilities of digital application of Intangible Cultural Heritage. 展开更多
关键词 HENAN PERFECT INTANGIBLE
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ISO publishes revised standard for ground support equipment and relevant systems
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《China Standardization》 2023年第2期17-17,共1页
Aerospace is always a pursuit of humans,not only out of desire for knowledge,but also out of persevering ambition.Ground support equipment(GSE)and relevant systems are of vital significance,which is fundamental to spa... Aerospace is always a pursuit of humans,not only out of desire for knowledge,but also out of persevering ambition.Ground support equipment(GSE)and relevant systems are of vital significance,which is fundamental to space system programs and projects.Though there are standards for ESG,the standards for ESG inspection and maintenance are necessary to perfect the whole process. 展开更多
关键词 revised PURSUIT PERFECT
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Coherent Perfect Absorption in Higher Order Systems
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作者 Mengjun Fan Linxue Fu +1 位作者 Yaqiong Ding Xinming Fu 《Journal of Applied Mathematics and Physics》 2023年第3期737-745,共9页
We investigate the phenomenon of coherent perfect absorption in a high-order system with three passive resonators coupled to a super-surface to form this three-state coherent perfect absorber. The effective parity tim... We investigate the phenomenon of coherent perfect absorption in a high-order system with three passive resonators coupled to a super-surface to form this three-state coherent perfect absorber. The effective parity time (PT) symmetry in the passive system has received much attention, and in this open three-state PT symmetric system, the incident wave is used as the effective gain instead of balancing the material gain and loss. We analyze the variation of coherent perfect absorption of this system with the coupling coefficient of the system by simulation. 展开更多
关键词 Exceptional Point PT Symmetry Non-Hermitian system Coherent Perfect Absorption
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