We introduce and investigate the concept of s-injective modules and strongly s-injective modules. New characterizations of SI-rings, GV-rings and pseudo-Frobenius rings are given in terms of s-injectivity of their mod...We introduce and investigate the concept of s-injective modules and strongly s-injective modules. New characterizations of SI-rings, GV-rings and pseudo-Frobenius rings are given in terms of s-injectivity of their modules.展开更多
We characterize V modules by relative (quasi )continuity of left R modules in this paper. It is shown that a left R module M is a V module if and only if every finitely cogenerated left R ...We characterize V modules by relative (quasi )continuity of left R modules in this paper. It is shown that a left R module M is a V module if and only if every finitely cogenerated left R module in σ[M] is S ( quasi )continuous if and only if every left R module in σ[M] is S continuous, where S is the set of all simple left R modules. We also show that a left R module M is a locally noetherian V module if and only if every semisimple left R module (in σ[M]) is M injective if and only if every essential extension in σ[M] of every semisimple left R module in σ[M] is S ? 2 (quasi )continuous, where S ? 2 is the set of all semisimple left R modules.展开更多
The purpose is to study modules of double crossproducts D (X, A) of Skew-Hopf pairs ( X, A). A sufficient and necessary condition for M to be D ( X, A)-mod is shown. Relations between D ( X, A)-mod and quantam Yang-Ba...The purpose is to study modules of double crossproducts D (X, A) of Skew-Hopf pairs ( X, A). A sufficient and necessary condition for M to be D ( X, A)-mod is shown. Relations between D ( X, A)-mod and quantam Yang-Baxter A-mod or X-mod are revealed.展开更多
In this paper,we focus on combining the theories of fuzzy soft sets with Γ-modules,and establishing a new framework for fuzzy soft Γ-submodules.The main contributions of the paper are 3-fold.First,we present the con...In this paper,we focus on combining the theories of fuzzy soft sets with Γ-modules,and establishing a new framework for fuzzy soft Γ-submodules.The main contributions of the paper are 3-fold.First,we present the concepts of（R,S）-bi-Γ-submodules,quasi-Γ-submodules and regular Γ-modules.Meanwhile,some illustrative examples are given to show the rationality of the definitions introduced in this paper.Second,several new kinds of generalized fuzzy soft Γ-submodules are proposed,and related properties and mutual relationships are also investigated.Third,we discover some intrinsic connections between the generalized fuzzy soft Γ-submodules presented in this paper and crisp Γ-submodules,and describe the relationships between regular Γ-modules and the generalized fuzzy soft Γ-submodules presented in this paper.展开更多
Yin Yang 1(YY1) is a multi-functional transcription factor that regulates gene expression in a range of cell types,including neurons.It controls neuronal differentiation,as well as neuronal specification and migration...Yin Yang 1(YY1) is a multi-functional transcription factor that regulates gene expression in a range of cell types,including neurons.It controls neuronal differentiation,as well as neuronal specification and migration during the development of the mammalian nervous system.Besides,YY1 also mediates the transcription of genes that are required for neuronal survival.An impairment of the transcriptional function of YY1 causes neuronal death.This review summarizes recent research findings that unveil the dysfunction of YY1 in multiple neurodegenerative disorders.The expression of disease proteins perturbs the function of YY1 via distinct molecular mechanisms,including recruitment to protein aggregates,protein degradation and aberrant nuclear/cytoplasmic shuttling.Understanding the pathogenic roles of YY1 will further broaden our knowledge of the disease mechanisms in distinct neurodegenerative disorders.展开更多
2.488 Gb/s optical fiber transmission experiment using a domestic Ti.LiNbO<sub>3</sub> externalmodulator was demonstrated for the first time in China.A receiver sensitivity of -30.3dBmwas obtained at a BER...2.488 Gb/s optical fiber transmission experiment using a domestic Ti.LiNbO<sub>3</sub> externalmodulator was demonstrated for the first time in China.A receiver sensitivity of -30.3dBmwas obtained at a BER of 10<sup>-10</sup>after transmission through 50.7 km conventional single modefiber.展开更多
The de Sitter special relativity on the Beltrami-de Sitter-spacetime and Snyder＇s model in the momentum space can be combined together with an IR-UV duality to get the complete Yang model at both classical and quantu...The de Sitter special relativity on the Beltrami-de Sitter-spacetime and Snyder＇s model in the momentum space can be combined together with an IR-UV duality to get the complete Yang model at both classical and quantum levels, which are related by the proposed Killing quantization. It is actually a special relativity based on the principle of relativity of three universal constants （c, ρp, R）.展开更多
Instead of avoiding occurrence of chaos in motor drives, chaos is positively utilized in this paper. A new chaotic pulse width modulation （PWM） scheme is proposed and implemented for AC motors, which functions to si...Instead of avoiding occurrence of chaos in motor drives, chaos is positively utilized in this paper. A new chaotic pulse width modulation （PWM） scheme is proposed and implemented for AC motors, which functions to significantly suppress harmonic peaks and hence acoustic noise. The key is to employ the Chua＇s circuit for generating a desired chaotic sequence. By using a practical induction motor, computer simulation and experimental results verify that the chaotic PWM has advantages of harmonic peak suppression and simple hardware implementation over the conventional PWM and random PWM.展开更多
A 32 Gb/s monolithically integrated electroabsorption modulated laser is fabricated by selective area growth technology. The threshold current of the device is below 13mA. The output power exceeds 10mW at 0V bias when...A 32 Gb/s monolithically integrated electroabsorption modulated laser is fabricated by selective area growth technology. The threshold current of the device is below 13mA. The output power exceeds 10mW at 0V bias when the injection current of the distributed feedback laser is 100mA at 25℃. The side mode suppression ratio is over 50 dB. A 32Gb/s eye diagram is measured with a 3.SVpp nonreturn-to-zero pseudorandom modulation signal at -2.3 V bias. A clearly opening eyediagram with a dynamic extinction ratio of 8.01 dB is obtained.展开更多
针对跌倒检测任务中复杂信息干扰和数据集缺乏导致模型精度不高的问题,设计一种高精度跌倒检测算法,降低模型参数的同时保持各种场景下的鲁棒性。该算法基于YOLOv5s改进,在骨干网络中使用Ghost module和解耦全连接注意力,以较低计算开...针对跌倒检测任务中复杂信息干扰和数据集缺乏导致模型精度不高的问题,设计一种高精度跌倒检测算法,降低模型参数的同时保持各种场景下的鲁棒性。该算法基于YOLOv5s改进,在骨干网络中使用Ghost module和解耦全连接注意力,以较低计算开销提升模型在光线变化、遮挡等干扰环境下的性能。在颈部层使用自适应感受野和空间通道混合注意力,提升神经元对不同尺度特征的适应性,应对人体形变、视角变化等干扰。引入EIoU损失函数,加速收敛提升训练精度。在公开数据集Le2i Fall Detection Dataset和UR Fall Detection上,精确率、召回率、mAP0.5和mAP(0.5:0.95)相比YOLOv5s分别提高4.0%,4.2%,2.9%和4.3%,参数量降低38.6%。该算法在多种应用场景下都保持较高检测精度,参数量较低,满足实际应用场景部署要求。展开更多
Despite the advances in combinatorial or synthetic chemis- try and bioinformatics, recent literature has demonstrated the relevance of nature and biomass as a source of new molecules to treat different pathologies, i....Despite the advances in combinatorial or synthetic chemis- try and bioinformatics, recent literature has demonstrated the relevance of nature and biomass as a source of new molecules to treat different pathologies, i.e., bioactive com- pounds obtained from Ecteinascidia turbinate to treat some types of cancer or rapamycin from Streptomyces hygroscop- icus to prevent organ rejection after transplant. This trend will continue simply due to the fact that Mother Nature has been synthesizing molecules for millions of years. In our lab- oratory, we have characterized several compounds obtained from natural sources and that possess important neuronal effects,展开更多
In 1847 William Thackeray started writing of Vanity Fair. The complete Chinese version by Yang Bi published by People＇s Literature Press in 1957 was a great success. From many Chinese version of Vanity Fair, we may f...In 1847 William Thackeray started writing of Vanity Fair. The complete Chinese version by Yang Bi published by People＇s Literature Press in 1957 was a great success. From many Chinese version of Vanity Fair, we may find that Yang Bi＇s translation is a perfect one. It is a best-ever version of all the possible versions that have been and might be produced in the future. Through analyzing Yang Bi＇s version, the choice of words, the use of four-character phrases, colloquial word in conversation, modal particles are the main reasons for the success ofYang Bi＇ s version and it＇ s long-standing popularity.展开更多
Infantile Blount's disease is a condition that causes genu varum and internal tibial torsion. Treatment options include observation, orthotics, corrective osteotomy, elevation of the medial tibial plateau, resecti...Infantile Blount's disease is a condition that causes genu varum and internal tibial torsion. Treatment options include observation, orthotics, corrective osteotomy, elevation of the medial tibial plateau, resection of a physeal bar, lateral hemi-epiphysiodesis, and guided growth of the proximal tibial physis. Each of these treatment options has its disadvantages. Treating the coronal deformity alone(genu varum) will result in persistence of the internal tibial torsion(the axial deformity). In this report, we describe the combination of lateral growth modulation and distal tibial external rotation osteotomy to correct all the elements of the disease. This has not been described before for treatment of Blount's disease. Both coronal and axial deformities were corrected in this patient. We propose this combination(rather than the lateral growth modulation alone) as the method of treatment for early stages of Blount's disease as it corrects both elements of the disease and in the same time avoids the complications of proximal tibial osteotomy.展开更多
文摘We introduce and investigate the concept of s-injective modules and strongly s-injective modules. New characterizations of SI-rings, GV-rings and pseudo-Frobenius rings are given in terms of s-injectivity of their modules.
文摘We characterize V modules by relative (quasi )continuity of left R modules in this paper. It is shown that a left R module M is a V module if and only if every finitely cogenerated left R module in σ[M] is S ( quasi )continuous if and only if every left R module in σ[M] is S continuous, where S is the set of all simple left R modules. We also show that a left R module M is a locally noetherian V module if and only if every semisimple left R module (in σ[M]) is M injective if and only if every essential extension in σ[M] of every semisimple left R module in σ[M] is S ? 2 (quasi )continuous, where S ? 2 is the set of all semisimple left R modules.
文摘The purpose is to study modules of double crossproducts D (X, A) of Skew-Hopf pairs ( X, A). A sufficient and necessary condition for M to be D ( X, A)-mod is shown. Relations between D ( X, A)-mod and quantam Yang-Baxter A-mod or X-mod are revealed.
基金Supported by the National Natural Science Foundation of China (61175055)the Innovation Term of Higher Education of Hubei Province,China (T201109)+1 种基金the Natural Science Foundation of Hubei Province (2012FFB01101)the Natural Science Foundation of Education Committee of Hubei Province (D20131903)
文摘In this paper,we focus on combining the theories of fuzzy soft sets with Γ-modules,and establishing a new framework for fuzzy soft Γ-submodules.The main contributions of the paper are 3-fold.First,we present the concepts of（R,S）-bi-Γ-submodules,quasi-Γ-submodules and regular Γ-modules.Meanwhile,some illustrative examples are given to show the rationality of the definitions introduced in this paper.Second,several new kinds of generalized fuzzy soft Γ-submodules are proposed,and related properties and mutual relationships are also investigated.Third,we discover some intrinsic connections between the generalized fuzzy soft Γ-submodules presented in this paper and crisp Γ-submodules,and describe the relationships between regular Γ-modules and the generalized fuzzy soft Γ-submodules presented in this paper.
基金supported by the General Research Fund(14100714)of the Hong Kong Research Grants Council(to HYEC)The Chinese University of Hong Kong Vice-Chancellor’s One-Off Discretionary Fund(VCF2014011)(to HYEC)+5 种基金The Chinese University of Hong Kong One-of Funding for Joint Lab/Research Collaboration(3132980)(to HYEC)The Chinese University of Hong Kong Faculty of Science Strategic Development Fund(FACULTY-P17173)(to HYEC)The Chinese University of Hong Kong Gerald Choa Neuroscience Centre(7105306)(to HYEC)donations from Chow Tai Fook Charity Foundation(6903898)(to HYEC)Hong Kong Spinocerebellar Ataxia Association(6903291)(to HYEC)supported by the Postdoctoral Fellowship in Clinical Neurosciences of The Chinese University of Hong Kong,China
文摘Yin Yang 1(YY1) is a multi-functional transcription factor that regulates gene expression in a range of cell types,including neurons.It controls neuronal differentiation,as well as neuronal specification and migration during the development of the mammalian nervous system.Besides,YY1 also mediates the transcription of genes that are required for neuronal survival.An impairment of the transcriptional function of YY1 causes neuronal death.This review summarizes recent research findings that unveil the dysfunction of YY1 in multiple neurodegenerative disorders.The expression of disease proteins perturbs the function of YY1 via distinct molecular mechanisms,including recruitment to protein aggregates,protein degradation and aberrant nuclear/cytoplasmic shuttling.Understanding the pathogenic roles of YY1 will further broaden our knowledge of the disease mechanisms in distinct neurodegenerative disorders.
基金the High Technology Research and Development Programme of China.
文摘2.488 Gb/s optical fiber transmission experiment using a domestic Ti.LiNbO<sub>3</sub> externalmodulator was demonstrated for the first time in China.A receiver sensitivity of -30.3dBmwas obtained at a BER of 10<sup>-10</sup>after transmission through 50.7 km conventional single modefiber.
基金Supported by the National Natural Science Foundation of China under Grant Nos.10701081,10975167,and 10875129
文摘The de Sitter special relativity on the Beltrami-de Sitter-spacetime and Snyder＇s model in the momentum space can be combined together with an IR-UV duality to get the complete Yang model at both classical and quantum levels, which are related by the proposed Killing quantization. It is actually a special relativity based on the principle of relativity of three universal constants （c, ρp, R）.
基金Project supported by the Shanghai Leading Academic Discipline Project (Grant No.T0103)
文摘Instead of avoiding occurrence of chaos in motor drives, chaos is positively utilized in this paper. A new chaotic pulse width modulation （PWM） scheme is proposed and implemented for AC motors, which functions to significantly suppress harmonic peaks and hence acoustic noise. The key is to employ the Chua＇s circuit for generating a desired chaotic sequence. By using a practical induction motor, computer simulation and experimental results verify that the chaotic PWM has advantages of harmonic peak suppression and simple hardware implementation over the conventional PWM and random PWM.
基金Supported by the National High-Technology Research and Development Program of China under Grant Nos 2011AA010303and 2012AA012203the National Basic Research Program of China under Grant No 2011CB301702the National Natural Science Foundation of China under Grant Nos 61321063 and 6132010601
文摘A 32 Gb/s monolithically integrated electroabsorption modulated laser is fabricated by selective area growth technology. The threshold current of the device is below 13mA. The output power exceeds 10mW at 0V bias when the injection current of the distributed feedback laser is 100mA at 25℃. The side mode suppression ratio is over 50 dB. A 32Gb/s eye diagram is measured with a 3.SVpp nonreturn-to-zero pseudorandom modulation signal at -2.3 V bias. A clearly opening eyediagram with a dynamic extinction ratio of 8.01 dB is obtained.
文摘针对跌倒检测任务中复杂信息干扰和数据集缺乏导致模型精度不高的问题,设计一种高精度跌倒检测算法,降低模型参数的同时保持各种场景下的鲁棒性。该算法基于YOLOv5s改进,在骨干网络中使用Ghost module和解耦全连接注意力,以较低计算开销提升模型在光线变化、遮挡等干扰环境下的性能。在颈部层使用自适应感受野和空间通道混合注意力,提升神经元对不同尺度特征的适应性,应对人体形变、视角变化等干扰。引入EIoU损失函数,加速收敛提升训练精度。在公开数据集Le2i Fall Detection Dataset和UR Fall Detection上,精确率、召回率、mAP0.5和mAP(0.5:0.95)相比YOLOv5s分别提高4.0%,4.2%,2.9%和4.3%,参数量降低38.6%。该算法在多种应用场景下都保持较高检测精度,参数量较低,满足实际应用场景部署要求。
文摘Despite the advances in combinatorial or synthetic chemis- try and bioinformatics, recent literature has demonstrated the relevance of nature and biomass as a source of new molecules to treat different pathologies, i.e., bioactive com- pounds obtained from Ecteinascidia turbinate to treat some types of cancer or rapamycin from Streptomyces hygroscop- icus to prevent organ rejection after transplant. This trend will continue simply due to the fact that Mother Nature has been synthesizing molecules for millions of years. In our lab- oratory, we have characterized several compounds obtained from natural sources and that possess important neuronal effects,
文摘In 1847 William Thackeray started writing of Vanity Fair. The complete Chinese version by Yang Bi published by People＇s Literature Press in 1957 was a great success. From many Chinese version of Vanity Fair, we may find that Yang Bi＇s translation is a perfect one. It is a best-ever version of all the possible versions that have been and might be produced in the future. Through analyzing Yang Bi＇s version, the choice of words, the use of four-character phrases, colloquial word in conversation, modal particles are the main reasons for the success ofYang Bi＇ s version and it＇ s long-standing popularity.
文摘Infantile Blount's disease is a condition that causes genu varum and internal tibial torsion. Treatment options include observation, orthotics, corrective osteotomy, elevation of the medial tibial plateau, resection of a physeal bar, lateral hemi-epiphysiodesis, and guided growth of the proximal tibial physis. Each of these treatment options has its disadvantages. Treating the coronal deformity alone(genu varum) will result in persistence of the internal tibial torsion(the axial deformity). In this report, we describe the combination of lateral growth modulation and distal tibial external rotation osteotomy to correct all the elements of the disease. This has not been described before for treatment of Blount's disease. Both coronal and axial deformities were corrected in this patient. We propose this combination(rather than the lateral growth modulation alone) as the method of treatment for early stages of Blount's disease as it corrects both elements of the disease and in the same time avoids the complications of proximal tibial osteotomy.
