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The Local Theory of Completely 1-Summing Mapping Spaces
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作者 Yafei Zhao Yuanyi Wang 《Journal of Applied Mathematics and Physics》 2023年第6期1570-1579,共10页
In this paper, we investigate local properties in the system of completely 1-summing mapping spaces. We introduce notions of injectivity, local reflexivity, exactness, nuclearity and finite-representability in the sys... In this paper, we investigate local properties in the system of completely 1-summing mapping spaces. We introduce notions of injectivity, local reflexivity, exactness, nuclearity and finite-representability in the system of completely 1-summing mapping spaces. First we obtain that if V has WEP, V is locally reflexive in the system (Ⅱ<sub>1</sub>(⋅,⋅), π<sub>1</sub>(⋅)) if and only if it is locally reflexive in the system (Ⅰ(⋅,⋅), t(⋅)). Furthermore we prove that an operator space V ⊆ B(H) is exact in the system (Ⅱ<sub>1</sub>(⋅,⋅), π<sub>1</sub>(⋅)) if and only if V is finitely representable in {M<sub>n</sub>}<sub>n∈N</sub> in the system (Ⅱ<sub>1</sub>(⋅,⋅), π<sub>1</sub>(⋅)). At last, we show that an operator space V is finitely representable in {M<sub>n</sub>}<sub>n∈N</sub> in the system (Ⅱ<sub>1</sub>(⋅,⋅), π<sub>1</sub>(⋅)) if and only if V = C. 展开更多
关键词 completely 1-Summing Mapping Space Injectivity NUCLEARITY Local Reflexivity EXACTNESS Finite-Representability and Operator Space
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Experimental Study on Improvement Effects of Completely Weathered Phyllite Using Red Clay and Cement for High-Speed Railway Embankments 被引量:1
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作者 Xiushao Zhao Jianglong Rao +4 位作者 Qijing Yang Yu Rong Zhitao Fu Zhiyao Wang Zixi Chen 《Journal of Renewable Materials》 SCIE EI 2022年第5期1287-1305,共19页
Completely weathered phyllite(CWP)has the characteristics of difficult compaction,low shear strength after compaction and large settlement after construction.The traditional improvement method using a single agent of ... Completely weathered phyllite(CWP)has the characteristics of difficult compaction,low shear strength after compaction and large settlement after construction.The traditional improvement method using a single agent of red clay or cement for CWP satisfies the subgrade requirements for ordinary railway,but cannot meet the requirements of immediate strength and long-term post-construction settlement of high-speed railway at the same time.A series of experimental investigations were undertaken for the blended CWP soils,with three additives used.The first additive was red clay,the second was cement and the third was a combination of both red clay and cement at various portions.Results of consolidation test and shear strength test carried out for the treated CWP soils show that:1)The effect of cement on improving the compression modulus of CWP is much better than that of red clay;2)The settlement of an embankment of 10 m high formed by blended soil of CWP with 3%cement can be controlled within 15 mm,while the settlement will be 25.15 mm for the same embankment of blended soil of CWP with 40%red clay;3)The shear strength and ultimate bearing capacity of CWP improved by red clay are much better than those of 5%cement;4)The ultimate bearing capacity of CWP improved by 40%red clay is 3.42 times of that by 3%cement and 2.95 times by 5%cement.Furthermore,the bearing capacity of CWP when improved by red clay can meet railway subgrade requirements immediately after compaction,while cement improved CWP needs a curing time of 1 day or longer.This is an impediment to rapid construction process.The improvement mechanism of red clay is mainly filling effect and grading improvement effect,while the improvement mechanism of cement is mainly hardening reaction,which produces high strength material to cement.It is found that 40%red clay and 3%cement treated CWP,which is considered to be optimum,can meet the subgrade requirements of both immediate bearing capacity and long-term post-construction settlement for the high-speed railway. 展开更多
关键词 completely weathered phyllite(CWP) red clay cement content immediate strength post-construction settlement high-speed railway
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Fixed Points Associated to Power of Normal Completely Positive Maps* 被引量:1
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作者 Haiyan Zhang Hongying Si 《Journal of Applied Mathematics and Physics》 2016年第5期925-929,共5页
Let be a normal completely positive map with Kraus operators . An operator X is said to be a fixed point of , if . Let be the fixed points set of . In this paper, fixed points of are considered for , where means j-pow... Let be a normal completely positive map with Kraus operators . An operator X is said to be a fixed point of , if . Let be the fixed points set of . In this paper, fixed points of are considered for , where means j-power of . We obtain that and for integral when A is self-adjoint and commutable. Moreover, holds under certain condition. 展开更多
关键词 Fixed Point POWER completely Positive Map
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One Class of the Least Congruences on Completely Regular Semigroups
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作者 张建刚 申冉 《Journal of Donghua University(English Edition)》 CAS 2021年第3期278-282,共5页
Congruence is a very important aspect in the study of the semigroup theory.In general,the Kernel-trace characterizations,Green's relations and subvarieties are main tools in the consideration of congruences on com... Congruence is a very important aspect in the study of the semigroup theory.In general,the Kernel-trace characterizations,Green's relations and subvarieties are main tools in the consideration of congruences on completely regular semigroups.In this paper,we give one class of congruences on completely regular semigroups with the representation of wreath product of translational hulls on completely simple semigroups.By this new way,the least Clifford semigroup congruences on completely regular semigroups are generalized. 展开更多
关键词 completely regular semigroup Clifford congruence translational hull wreath product ORTHOGROUP
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ON THE NUCLEARITY OF COMPLETELY 1-SUMMING MAPPING SPACES
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作者 董浙 赵亚菲 《Acta Mathematica Scientia》 SCIE CSCD 2020年第6期1981-1988,共8页
In this paper,we investigate theλ-nuclearity in the system of completely 1-summing mapping spaces(Π1(⋅,⋅),π1).In Section 2,we obtain that C is the unique operator space that is nuclear in the system(Π1(⋅,⋅),π1).W... In this paper,we investigate theλ-nuclearity in the system of completely 1-summing mapping spaces(Π1(⋅,⋅),π1).In Section 2,we obtain that C is the unique operator space that is nuclear in the system(Π1(⋅,⋅),π1).We generalize some results in Section 2 toλ-nuclearity in Section 3. 展开更多
关键词 λ-nuclearity completely 1-summing mapping space
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Primary Reconstruction of Completely Biologic Tissue Engineered Blood Vessel and Related Basic Research
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作者 Xiu-Hua ZHANG Yan ZHANG Yu-Quan LI Xiang-Qun YANGLin ZHANG Hui-Long HUANG(Institute of Biomedical Engineering, The Second Military Medical University, Shanghai 200433,China) 《生物医学工程学杂志》 EI CAS CSCD 北大核心 2005年第S1期51-52,共2页
关键词 Primary Reconstruction of completely Biologic Tissue Engineered Blood Vessel and Related Basic Research Basic
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Completely Distinguishing Individual A-genome Chromosomes and Their Karyotyping Analysis by Multiple BAC-FISH
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作者 WANG Kai,GUO Wang-zhen,ZHANG Tian-zhen(National Key Laboratory of Crop Genetics and Germplasm Enhancement,Cotton Research Institute,Nanjing Agricultural University,Nanjing 210095,China) 《棉花学报》 CSCD 北大核心 2008年第S1期33-,共1页
Multiple BAC-FISH is a powerful tool for modern cytogenetic researching in both animals and plants.But in cotton,this technique is unavailable due to the high percentage of repetitive sequences.
关键词 BAC completely Distinguishing Individual A-genome Chromosomes and Their Karyotyping Analysis by Multiple BAC-FISH
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Treatment of traumatic globe dislocated completely into the maxillary sinus
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作者 Bei Xu Xue-Liang Xu Jia Yan 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2013年第1期106-107,共2页
Dear Sir, I am Dr. Bei Xu, from Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China. I want to present a rare case of the treatment of traumatic globe dislocated co... Dear Sir, I am Dr. Bei Xu, from Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China. I want to present a rare case of the treatment of traumatic globe dislocated completely into the maxillary sinus. A 46-year-old female was admitted to emergency unit due to traffic accident, presenting disturbance of consciousness for nine hours. 展开更多
关键词 Treatment of traumatic globe dislocated completely into the maxillary sinus
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A Classification of Completely Positive Maps
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作者 Ruofei Wang Shudong Liu Changguo Wei 《Journal of Applied Mathematics and Physics》 2022年第12期3649-3664,共16页
This paper concerns classifying completely positive maps between certain C*-algebras. Several invariants for classifying completely positive maps are constructed. It is proved that one of them is isomorphic to the Ext... This paper concerns classifying completely positive maps between certain C*-algebras. Several invariants for classifying completely positive maps are constructed. It is proved that one of them is isomorphic to the Ext-group of C*-algebra extensions in special circumstances. Furthermore, this invariant induces a functor from C*-algebras to abelian groups which is split-exact. 展开更多
关键词 completely Positive Map EXTENSION Ext-Group
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TianshengqiaoⅠcascade and Ⅱ cascade hydropower stations completely built up
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《Electricity》 2001年第1期50-50,共1页
关键词 cascade hydropower stations completely built up Tianshengqiao cascade and
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Xuanwei Power Plant 5th Phase Project was completely built up
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《Electricity》 2001年第4期51-51,共1页
关键词 PROJECT Xuanwei Power Plant 5th Phase Project was completely built up
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A PATRIOTIC HEART COMPLETELY DEVOTED TO THE MOTHERLAND-A biographic sketch of the CAS Member Prof. Yu Guocong
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作者 Tian Jun(Tianjin University) 《Bulletin of the Chinese Academy of Sciences》 1997年第1期48-51,共4页
During a life-long career, everyone has memorable moments constantly cherished in the heart.So is the case for Prof. Yu Guocong. It was on May 29, 1959, when the late Premier Zhou Enlai came to visit Dr. Yu’s laborat... During a life-long career, everyone has memorable moments constantly cherished in the heart.So is the case for Prof. Yu Guocong. It was on May 29, 1959, when the late Premier Zhou Enlai came to visit Dr. Yu’s laboratory during his inspection tour at the Tianjin University. This has been an unforgettable event in Prof. Yu’s mind. When shaking hands with Prof. Yu, Premier Zhou said: "I heard that you have made great advances in the rescarch of heavy water. I am eagerly waiting for further success in your work. For the honor of our country, we must have heavy water developed with our own hands, in defiance of someone who attempts to strangle us." Looking into the Premier’s eyes of encouragement,Prof. Yu was then determined to live up to the expectations of the motherland by making a good job of his research work. 展开更多
关键词 A PATRIOTIC HEART completely DEVOTED TO THE MOTHERLAND-A biographic sketch of the CAS Member Prof Yu Guocong CAS
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MISSION OBJECTIVES OF SJ-5 SATELLITE COMPLETELY ACHIEVED
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作者 Gui Wenzhuang(Bureau of Hi-tech Research & Development, CAS) 《Bulletin of the Chinese Academy of Sciences》 2000年第1期33-34,共2页
The SJ-5 (Shijian-5) spacecraft is the first China-made satellite for scientific research with theCAS as the user. Blasting off from the TaiyuanSatellite Launch Center on May 10, l999, the SJ-5completed its main exper... The SJ-5 (Shijian-5) spacecraft is the first China-made satellite for scientific research with theCAS as the user. Blasting off from the TaiyuanSatellite Launch Center on May 10, l999, the SJ-5completed its main experimental tasks on scheduleafter a 90-day-long earth-orbit flight. The normaloperation of the satellite’s platform provided aguarantee for the smooth fulfillment of its mission.All payloads aboard the satellite were independent- 展开更多
关键词 MISSION OBJECTIVES OF SJ-5 SATELLITE completely ACHIEVED
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Comparative Study of Four Methods in Missing Value Imputations under Missing Completely at Random Mechanism 被引量:3
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作者 Michikazu Nakai Ding-Geng Chen +1 位作者 Kunihiro Nishimura Yoshihiro Miyamoto 《Open Journal of Statistics》 2014年第1期27-37,共11页
In analyzing data from clinical trials and longitudinal studies, the issue of missing values is always a fundamental challenge since the missing data could introduce bias and lead to erroneous statistical inferences. ... In analyzing data from clinical trials and longitudinal studies, the issue of missing values is always a fundamental challenge since the missing data could introduce bias and lead to erroneous statistical inferences. To deal with this challenge, several imputation methods have been developed in the literature to handle missing values where the most commonly used are complete case method, mean imputation method, last observation carried forward (LOCF) method, and multiple imputation (MI) method. In this paper, we conduct a simulation study to investigate the efficiency of these four typical imputation methods with longitudinal data setting under missing completely at random (MCAR). We categorize missingness with three cases from a lower percentage of 5% to a higher percentage of 30% and 50% missingness. With this simulation study, we make a conclusion that LOCF method has more bias than the other three methods in most situations. MI method has the least bias with the best coverage probability. Thus, we conclude that MI method is the most effective imputation method in our MCAR simulation study. 展开更多
关键词 MISSING Data IMPUTATION MCAR COMPLETE Case LOCF
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An Integrating Algorithm and Theoretical Analysis for Fully Rheonomous Affine Constraints: Completely Integrable Case 被引量:1
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作者 Tatsuya Kai 《Applied Mathematics》 2013年第12期1720-1725,共6页
This paper develops an integrating algorithm for fully rheonomous affine constraints and gives theoretical analysis of the algorithm for the completely integrable case. First, some preliminaries on the fully rheonomou... This paper develops an integrating algorithm for fully rheonomous affine constraints and gives theoretical analysis of the algorithm for the completely integrable case. First, some preliminaries on the fully rheonomous affine constraints are shown. Next, an integrating algorithm that calculates independent first integrals is derived. In addition, the existence of an inverse function utilized in the algorithm is investigated. Then, an example is shown in order to evaluate the effectiveness of the proposed method. By using the proposed integrating algorithm, we can easily calculate independent first integrals for given constraints, and hence it can be utilized for various research fields. 展开更多
关键词 Fully Rheonomous AFFINE CONSTRAINTS Geometric Representation Rheonomous BRACKET Complete INTEGRABILITY Integrating ALGORITHM
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Nuclearity and Finite-Representability in the System of Completely Integral Mapping Spaces
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作者 Zhe DONG Ji Cheng TAO Ya Fei ZHAO 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2024年第5期1197-1214,共18页
In this paper,we investigate local properties in the system of completely integral mapping spaces.We introduce notions of injectivity,local reflexivity,exactness,nuclearity,finite-represent ability and WEP in the syst... In this paper,we investigate local properties in the system of completely integral mapping spaces.We introduce notions of injectivity,local reflexivity,exactness,nuclearity,finite-represent ability and WEP in the system of completely integral mapping spaces.First we obtain that any finite-dimensional operator space is injective in the system of completely integral mapping spaces.Furthermore we prove that C is the unique nuclear operator space and the unique exact operator space in this system.We also show that C is the unique operator space which is finitely representable in{T_(n)}n∈Nin this system.As corollaries,Kirchberg’s conjecture and QWEP conjecture in the system of completely integral mapping spaces are false. 展开更多
关键词 completely integral mapping space injectivity exactness NUCLEARITY finite-representability WEP
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Unconfined compressive strength and failure behaviour of completely weathered granite from a fault zone
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作者 DU Shaohua MA Jinyin +1 位作者 MA Liyao ZHAO Yaqian 《Journal of Mountain Science》 SCIE 2024年第6期2140-2158,共19页
Understanding the strength characteristics and deformation behaviour of the tunnel surrounding rock in a fault zone is significant for tunnel stability evaluation.In this study,a series of unconfined compression tests... Understanding the strength characteristics and deformation behaviour of the tunnel surrounding rock in a fault zone is significant for tunnel stability evaluation.In this study,a series of unconfined compression tests were conducted to investigate the mechanical characteristics and failure behaviour of completely weathered granite(CWG)from a fault zone,considering with height-diameter(h/d)ratio,dry densities(ρd)and moisture contents(ω).Based on the experimental results,a regression mathematical model of unconfined compressive strength(UCS)for CWG was developed using the Multiple Nonlinear Regression method(MNLR).The research results indicated that the UCS of the specimen with a h/d ratio of 0.6 decreased with the increase ofω.When the h/d ratio increased to 1.0,the UCS increasedωwith up to 10.5%and then decreased.Increasingρd is conducive to the improvement of the UCS at anyω.The deformation and rupture process as well as final failure modes of the specimen are controlled by h/d ratio,ρd andω,and the h/d ratio is the dominant factor affecting the final failure mode,followed byωandρd.The specimens with different h/d ratio exhibited completely different fracture mode,i.e.,typical splitting failure(h/d=0.6)and shear failure(h/d=1.0).By comparing the experimental results,this regression model for predicting UCS is accurate and reliable,and the h/d ratio is the dominant factor affecting the UCS of CWG,followed byρd and thenω.These findings provide important references for maintenance of the tunnel crossing other fault fractured zones,especially at low confining pressure or unconfined condition. 展开更多
关键词 Fault fracture zone completely weathered granite(CWG) Unconfined compression strength(UCS) Multiple nonlinear regression model
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Completely positive tensors in the complex field
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作者 Anwa Zhou Jinyan Fan Qingwen Wang 《Science China Mathematics》 SCIE CSCD 2020年第6期1219-1234,共16页
In this paper, we introduce the complex completely positive tensor, which has a symmetric complex decomposition with all real and imaginary parts of the decomposition vectors being non-negative. Some properties of the... In this paper, we introduce the complex completely positive tensor, which has a symmetric complex decomposition with all real and imaginary parts of the decomposition vectors being non-negative. Some properties of the complex completely positive tensor are given. A semidefinite algorithm is also proposed for checking whether a complex tensor is complex completely positive or not. If a tensor is not complex completely positive, a certificate for it can be obtained;if it is complex completely positive, a complex completely positive decomposition can be obtained. 展开更多
关键词 complex completely positive tensor complex completely positive decomposition truncated moment problem semidefinite program
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Performance of a completely autotrophic nitrogen removal over nitrite process for treating wastewater with different substrates at ambient temperature 被引量:12
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作者 Xiaoyan Chang Dong Li +5 位作者 Yuhai Liang Zhuo Yang Shaoming Cui Tao Liu Huiping Zeng Jie Zhang 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2013年第4期688-697,共10页
The stability and parameters of a bio-ceramic filter for completely autotrophic nitrogen removal were investigated.The completely autotrophic nitrogen removal over nitrite(CANON) reactor was fed with different concent... The stability and parameters of a bio-ceramic filter for completely autotrophic nitrogen removal were investigated.The completely autotrophic nitrogen removal over nitrite(CANON) reactor was fed with different concentrations of ammonia(400,300,and 200mg N/L) but constant influent ammonia load.The results showed that the CANON system can achieve good treatment performance at ambient temperature(15-23°C).The average removal rate and removal loading of NH4+-N and TN was 83.90%,1.26kg N/(m3·day),and 70.14%,1.09kg N/(m3·day),respectively.Among the influencing factors like pH,dissolved oxygen and alkalinity,it was indicated that the pH was the key parameter of the performance of the CANON system.Observing the variation of pH would contribute to better control of the CANON system in an intuitive and fast way.Denaturing gradient gel electrophoresis analysis of microorganisms further revealed that there were some significant changes in the community structure of ammonium oxidizing bacteria,which had low diversity in different stages,while the species of anaerobic ammonium oxidizing(anammox) bacteria were fewer and the community composition was relatively stable.These observations showed that anaerobic ammonia oxidation was more stable than the aerobic ammonia oxidation,which could explain that why the CANON system maintained a good removal efficiency under the changing substrate conditions. 展开更多
关键词 completely autotrophic nitrogen removal over nitrite bio-filter ANAMMOX pH dissolved oxygen ALKALINITY
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The order-preserving convergence for spectral approximation of self-adjoint completely continuous operators 被引量:9
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作者 YANG YiDu CHEN Zhen 《Science China Mathematics》 SCIE 2008年第7期1232-1242,共11页
This paper discusses the order-preserving convergence for spectral approximation of the self-adjoint completely continuous operator T.Under the condition that the approximate operator Th converges to T in norm,it is p... This paper discusses the order-preserving convergence for spectral approximation of the self-adjoint completely continuous operator T.Under the condition that the approximate operator Th converges to T in norm,it is proven that the k-th eigenvalue of Th converges to the k-th eigenvalue of T.(We sorted the positive eigenvalues in decreasing order and negative eigenvalues in increasing order.) Then we apply this result to conforming elements,nonconforming elements and mixed elements of self-adjoint elliptic differential operators eigenvalue problems,and prove that the k-th approximate eigenvalue obtained by these methods converges to the k-th exact eigenvalue. 展开更多
关键词 SELF-ADJOINT completely continuous OPERATOR spectral APPROXIMATION the ORDER-PRESERVING CONVERGENCE
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