On cyclic decompositions of the complete graph into the2-regular graphs

Zhihe Liang 한국전산응용수학회 2007 Journal of applied mathematics & informatics Vol.24 No.1

ON CYCLIC DECOMPOSITIONS OF THE COMPLETE GRAPH INTO THE 2-REGULAR GRAPHS

Liang, Zhihe 한국전산응용수학회 2007 Journal of applied mathematics & informatics Vol.24 No.1

The symbol C($m_1^{n_1}m_2^{n_2}{\cdots}m_s^{n_s}$) denotes a 2-regular graph consisting of $n_i$ cycles of length $m_i,\;i=1,\;2,\;{\cdots},\;s$. In this paper, we give some construction methods of cyclic($K_v$, G)-designs, and prove that there exists a cyclic($K_v$, G)-design when $G=C((4m_1)^{n_1}(4m_2)^{n_2}{\cdots}(4m_s)^{n_s}\;and\;v{\equiv}1(mod\;2|G|)$.

Haewon-sangsaeng, Chinese Harmonism and Ecological Civilization

WANG, Zhihe DAOS(The Daesoon Academy of Sciences) 2022 Journal of Daesoon Thought and the Religions of Ea Vol.2 No.1

Haewon-sangsaeng is a key idea of Daesoon Jinrihoe, which, as Professor Bae Kyuhan points out, "… has broad applications." Haewon-sangsaeng is not only congenial to Chinese Harmonism, but it also enriches this concept. However, many scholars understand Haewon-sangsaeng in a relatively narrow scope. For them, Haewon-sangsaeng is confined to pertaining only to human relationships. For example, Don Baker, the author of Korean Spirituality, states that "Haewon means relieving the resentment human beings past and present have felt because they were treated unfairly". Sangsaeng refers to "a spirit of mutual aid and cooperation" rather than "the spirit of competition and conflict that has dominated the human community up to the present day". This article argues that Haewon-sangsaeng not only has religio-ethical implications, but ecological implications as well. Specifically, it has relevance for the goal of creating an ecological civilization that aims at the harmony of humans and nature. In other words, Haewon-sangsaeng can be both "expanded for the global peace and the harmony of all humanity" and can be expanded for healing the relationship between humans and nature, including human beings and viruses. In order not to risk being "the first Earth species knowingly to choose self-extinction", an Ecological Civilization is urgently needed before it's too late. Alone with Chinese Harmonism, Haewon-sangsaeng can make great contributions to the cause of ecological civilization by transcending anthropocentrism, individualism, and the worship of competition as root causes of the predicaments faced by modern civilization.

Design and Realization of a Digital PV Simulator with a Push-Pull Forward Circuit

Jike Zhang,Shengtie Wang,Zhihe Wang,Lixin Tian 전력전자학회 2014 JOURNAL OF POWER ELECTRONICS Vol.14 No.3

This paper presents the design and realization of a digital PV simulator with a Push-Pull Forward (PPF) circuit based on the principle of modular hardware and configurable software. A PPF circuit is chosen as the main circuit to restrain the magnetic biasing of the core for a DC-DC converter and to reduce the spike of the turn-off voltage across every switch. Control and I/O interface based on a personal computer (PC) and multifunction data acquisition card, can conveniently achieve the data acquisition and configuration of the control algorithm and interface due to the abundant software resources of computers. In addition, the control program developed in Matlab/Simulink can conveniently construct and adjust both the models and parameters. It can also run in real-time under the external mode of Simulink by loading the modules of the Real-Time Windows Target. The mathematic models of the Push-Pull Forward circuit and the digital PV simulator are established in this paper by the state-space averaging method. The pole-zero cancellation technique is employed and then its controller parameters are systematically designed based on the performance analysis of the root loci of the closed current loop with ki and RL as variables. A fuzzy PI controller based on the Takagi-Sugeno fuzzy model is applied to regulate the controller parameters self-adaptively according to the change of RL and the operating point of the PV simulator to match the controller parameters with RL. The stationary and dynamic performances of the PV simulator are tested by experiments, and the experimental results show that the PV simulator has the merits of a wide effective working range, high steady-state accuracy and good dynamic performances.

Design and Realization of a Digital PV Simulator with a Push-Pull Forward Circuit

Zhang, Jike,Wang, Shengtie,Wang, Zhihe,Tian, Lixin The Korean Institute of Power Electronics 2014 JOURNAL OF POWER ELECTRONICS Vol.14 No.3

This paper presents the design and realization of a digital PV simulator with a Push-Pull Forward (PPF) circuit based on the principle of modular hardware and configurable software. A PPF circuit is chosen as the main circuit to restrain the magnetic biasing of the core for a DC-DC converter and to reduce the spike of the turn-off voltage across every switch. Control and I/O interface based on a personal computer (PC) and multifunction data acquisition card, can conveniently achieve the data acquisition and configuration of the control algorithm and interface due to the abundant software resources of computers. In addition, the control program developed in Matlab/Simulink can conveniently construct and adjust both the models and parameters. It can also run in real-time under the external mode of Simulink by loading the modules of the Real-Time Windows Target. The mathematic models of the Push-Pull Forward circuit and the digital PV simulator are established in this paper by the state-space averaging method. The pole-zero cancellation technique is employed and then its controller parameters are systematically designed based on the performance analysis of the root loci of the closed current loop with $k_i$ and $R_L$ as variables. A fuzzy PI controller based on the Takagi-Sugeno fuzzy model is applied to regulate the controller parameters self-adaptively according to the change of $R_L$ and the operating point of the PV simulator to match the controller parameters with $R_L$. The stationary and dynamic performances of the PV simulator are tested by experiments, and the experimental results show that the PV simulator has the merits of a wide effective working range, high steady-state accuracy and good dynamic performances.

Expression of Translationally Controlled Tumor Protein (TCTP) Gene of Dirofilaria immitis Guided by Transcriptomic Screening

Yan Fu,Jingchao Lan,Xuhang Wu,Deying Yang,Zhihe Zhang,Huaming Nie,Rong Hou,Runhui Zhang,Wanpeng Zheng,Yue Xie,Ning Yan,Zhi Yang,Chengdong Wang,Li Luo,Li Liu,Xiaobin Gu,Shuxian Wang,Xuerong Peng,Guangy 대한기생충학열대의학회 2014 The Korean Journal of Parasitology Vol.52 No.1

Use of autonomous maximal smile to evaluate dental and gingival exposure

Shuai Wang,Hengzhe Lin,Yan Yang,Xin Zhao,Li Mei,Wei Zheng,Yu Li,Zhihe Zhao 대한치과교정학회 2018 대한치과교정학회지 Vol.48 No.3

Objective: This study was performed to validate the autonomous maximal smile (AMS) as a new reference for evaluating dental and gingival exposure. Methods: Digital video clips of 100 volunteers showing posed smiles and AMS at different verbal directives were recorded for evaluation a total of three times at 1-week intervals. Lip-teeth relationship width (LTRW) and buccal corridor width (BCW) were measured. LTRW represented the vertical distance between the inferior border of the upper vermilion and the edge of the maxillary central incisors. Intraclass correlation coefficients (ICCs) for reproducibility, and the m-value (minimum number of repeated measurements required for an ICC level over 0.75), were calculated. Results: LTRW and BCW of the AMS were 1.41 and 2.04 mm, respectively, greater than those of the posed smile (p < 0.05), indicating significantly larger dental and gingival exposure in the AMS. The reproducibility of the AMS (0.74 to 0.77) was excellent, and higher than that of the posed smile (0.62 to 0.65), which had fair-to-good reproducibility. Moreover, the m-value of the AMS (0.88 to 1.05) was lower than that of the posed smile (1.59 to 1.85). Conclusions: Compared to the posed smile, the AMS shows significantly larger LTRW and BCW, with significantly higher reproducibility. The AMS might serve as an adjunctive reference, in addition to the posed smile, in orthodontic and other dentomaxillofacial treatments.

Use of autonomous maximal smile to evaluate dental and gingival exposure

Shuai Wang,Hengzhe Lin,Yan Yang,Xin Zhao,Li Mei,Wei Zheng,Yu Li,Zhihe Zhao 대한치과교정학회 2018 대한치과교정학회지 Vol.46 No.3

Objective: This study was performed to validate the autonomous maximal smile (AMS) as a new reference for evaluating dental and gingival exposure. Methods: Digital video clips of 100 volunteers showing posed smiles and AMS at different verbal directives were recorded for evaluation a total of three times at 1-week intervals. Lip-teeth relationship width (LTRW) and buccal corridor width (BCW) were measured. LTRW represented the vertical distance between the inferior border of the upper vermilion and the edge of the maxillary central incisors. Intraclass correlation coefficients (ICCs) for reproducibility, and the m-value (minimum number of repeated measurements required for an ICC level over 0.75), were calculated. Results: LTRW and BCW of the AMS were 1.41 and 2.04 mm, respectively, greater than those of the posed smile (p < 0.05), indicating significantly larger dental and gingival exposure in the AMS. The reproducibility of the AMS (0.74 to 0.77) was excellent, and higher than that of the posed smile (0.62 to 0.65), which had fair-to-good reproducibility. Moreover, the m-value of the AMS (0.88 to 1.05) was lower than that of the posed smile (1.59 to 1.85). Conclusions: Compared to the posed smile, the AMS shows significantly larger LTRW and BCW, with significantly higher reproducibility. The AMS might serve as an adjunctive reference, in addition to the posed smile, in orthodontic and other dentomaxillofacial treatments.