Singing: Resonance Between the Soul and the Body On the Unity of Different Music Styles and Singing States

This paper explores how a singer can arrive at the best singing state and how the singing state can best serve the expression of music styles through a discussion of the four elements of the singing state, namely physiological, psychological, cultural and technical elements. From an academic prospective, it gives a synthetic analysis on how a singer’s soul and skills can form a perfect unity with the expression of songs

A STUDY ON THE CHARACTERISTICS AND INHERITANCE OF CHINESE YAZHENG

Why do the yazheng have different shapes and production processes in different places? What is the effect of the reformation of yazheng in modern times? Based on the survived real yazheng in modern time and historical documents, this study gives an overview of the similarities and differences of yazheng found in different places and discusses its contemporary inheritance and development. Using the theoretical lens of ethnomusicology and perspectives including the origin of musical instruments and playing methods, this study investigates the development of the yazheng in the same historical context and cross-contexts. I believe the strategy for the survival of the yazheng originated from the influence of the strong culture at that time and was also driven by the social power hierarchy and historical environment

(1R*,2R*)-1-(7-Bromo-3-methoxy­naphthalen-2-yl)-4-(dimethyl­amino)-2-(naphthalen-1-yl)-1-phenyl­butan-2-ol

In the crystal structure of the title compound, C33H32BrNO2, the naphthalene ring system and the benzene ring are oriented at dihedral angles of 82.24 (4) and 79.53 (4)°, respectively, to the quinoline ring system. An intra­molecular O—H⋯N hydrogen bond occurs between the hydr­oxy H atom and the amine N atom

(1R*,2R*)-1-(4-Chloro­phen­yl)-4-dimethyl­amino-1-(3-meth­oxy-2-naphth­yl)-2-(1-naphth­yl)butan-2-ol

In the title compound, C33H32ClNO2, the benzene ring is oriented at dihedral angles of 6.23 (5) and 66.44 (5)° with respect to the two naphthalene ring systems. An intra­molecular O—H⋯N hydrogen bond between the hydr­oxy H atom and the amine N atom generates an S(6) ring

Apexification Management of Mandibular Second Premolar with a Blunderbuss Apex and Periapical Lesion of an Adult Patient

Apexification is widely applied in teenager patients but rarely used in the adult population. Instead, artificial apical barrier with mineral trioxide aggregate (MTA) is clinically accepted, and spontaneous apical closure in nonvital immature teeth of adult patients has rarely been encountered while only apexification of the maxillary incisors in adult patients has been reported. The aim of this case report is to share a successful apexification application in the mandibular premolar with a blunderbuss apex and periapical lesion of an adult patient by using calcium hydroxide: radiographically, spontaneous hard tissue barrier has been established, and narrowing canal space and decreasing area of periapical shadow were documented without complications. Taken together, our study indicates that patient\u27s age and tooth position may not be the critical limitation for apexification. © 2019 Chenshuang Li et al

The Mechanism of Knowledge Associated Integration of Interdisciplinary Research Team Based on Absorption Ability

Interdisciplinary research team (IDRT) to solve complex, major multidisciplinary problem, is an important organization form. Members thought fusion and multidisciplinary knowledge integration is the key of implementing interdisciplinary team sustainable competitive advantage. According to the theory of knowledge absorptive capacity, this paper has analyzed knowledge associated integration mechanism of interdisciplinary team. First, the paper analyses the characteristics of absorbing ability cognitive mediation, subject link together mechanism, dimension conversion mechanism and reciprocal decision mechanism. Second, this paper builds an absorption evolution model of knowledge associated integration of interdisciplinary research team. Finally, it simulates and analyzes the evolution characteristics of interdisciplinary team knowledge network, and proposes management strategy

End-to-End Insulator String Defect Detection in a Complex Background Based on a Deep Learning Model

Normal power line insulators ensure the safe transmission of electricity. The defects of the insulator reduce the insulation, which may lead to the failure of power transmission systems. As unmanned aerial vehicles (UAVs) have developed rapidly, it is possible for workers to take and upload aerial images of insulators. Proposing a technology to detect insulator defects with high accuracy in a short time can be of great value. The existing methods suffer from complex backgrounds so that they have to locate and extract the insulators at first. Some of them make detection relative to some specific conditions such as angle, brightness, and object scale. This study aims to make end-to-end detections using aerial images of insulators, giving the locations of insulators and defects at the same time while overcoming the disadvantages mentioned above. A DEtection TRansformer (DETR) having an encoder–decoder architecture adopts convolutional neural network (CNN) as the backbone network, applies a self-attention mechanism for computing, and utilizes object queries instead of a hand-crafted process to give the direct predictions. We modified this for insulator detection in complex aerial images. Based on the dataset we constructed, our model can get 97.97 in mean average precision when setting the threshold of intersection over union at 0.5, which is better than Cascade R-CNN and YOLOv5. The inference speed of our model can reach 25 frames per second, which is qualified for actual use. Experimental results demonstrate that our model meets the robustness and accuracy requirements for insulator defect detection