뮤지컬은 음악, 무용, 드라마 플롯 및 무대 예술과 같은 많은 요소를 통합하는 종합 무대 예술이다. 뮤지컬 은 탄생 때부터 현재에 이르기까지 100년 이상의 역사를 가지고 있으며 모든 면에서 끊임없이 발전하고 있다. 그중에서도 뮤지컬의 노래 스타일과 방법은 크게 발전하고 변화하고 있다. 보통 가수들은 클래식 음악 스타일 의 뮤지컬을 부를 때 벨 칸토 기반의 노래 모드를 사용해야 하며 사운드는 완전한 공명을 요구한다. 크로스보 더(클래식과 팝의 결합)로 뮤지컬을 부를 때 벨 칸토 창법과 팝송을 전문적으로 훈련받으며, 이 두 가지 방법 을 완벽하게 결합시켜야 한다. 팝 음악 스타일의 뮤지컬을 부를 때는 각각의 세부 음악 스타일(예: 재즈, 컨트 리 음악, 로큰롤)을 기반으로 해야 한다.

The "close" technique of treble is an important method to solve the difficulty of singing treble. This paper focuses on what is the "close" technique of treble, how to carry out the "close" technique of treble, and how to use the "close" technique of treble in popular songs.

On the basis of searching and reading relevant literature, conducting field investigation, this topic makes a comparative study of the popular music education system between China and Korea. Specifically, it is mainly carried out from the following aspects: the history of popular music education in China and Korea, the settings of popular music majors in China and Korea, the academic degree settings of popular music majors in China and Korea, the orientation(training objectives) of popular music majors in China and Korea, the curriculums settings of popular music majors in China and Korea, the teaching systems (teaching methods) of popular music majors in China and Korea, the teaching equipment of popular music majors in Korea and China, the teaching evaluation mechanism of popular music majors in China and Korea, the art practice(students) of popular music majors in China and Korea, the teachers of popular music majors in China and Korea, the scientific research(teachers) of popular music majors in China and Korea, the enrollment(students) of popular music majors in China and Korea, the employment(students) of popular music majors in China and Korea, the other aspects of popular music education system in China and Korea.

Orthorhombic DyMnO3 films are fabricated epitaxially on Nb-1.0 wt%-doped SrTiO3 single crystal substrates using pulsed laser deposition technique. The structure of the deposited DyMnO3 films is studied by X-ray diffraction, and the epitaxial relationship between the film and the substrate is determined. The electrical transport properties reveal the diodelike rectifying behaviors in the all-perovskite oxide junctions over a wide temperature range (100 ~ 340 K). The forward current is exponentially related to the forward bias voltage, and the extracted ideality factors show distinct transport mechanisms in high and low positive regions. The leakage current increases with increasing reverse bias voltage, and the breakdown voltage decreases with decrease temperature, a consequence of tunneling effects because the leakage current at low temperature is larger than that at high temperature. The determined built-in potentials are 0.37 V in the low bias region, and 0.11 V in the high bias region, respectively. The results show the importance of temperature and applied bias in determining the electrical transport characteristics of all-perovskite oxide heterostructures.

MOOC is a new online education platform in recent years, which broke out all over the world in 2012. At present, the relevant research results of MOOC at home and abroad are relatively limited. Now after reading the relevant Chinese and foreign literature and conducting relevant investigation, we have carried out a more detailed, comprehensive and new research on MOOC in terms of its proposal, development, operation platform carried by MOOC, development and platform establishment of MOOC in China, differences between MOOC and network open courses, advantages and disadvantages of MOOC, development trend of MOOC, etc Elaboration.

Orthorhombic dysprosium manganite DyMnO3 with single phase is synthesized using solid-state reaction technique and the crystal structure and dielectric properties as functions of temperature and frequency are investigated. Thermally activated dielectric relaxations are shown in the temperature dependence of the complex permittivity, and the respective peaks are found to be shifted to higher temperatures as the measuring frequency increases. In Arrhenius plots, activation energies of 0.32 and 0.24 eV for the high- and low-temperature relaxations are observed, respectively. Analysis of the relationship between the real and imaginary parts of the permittivity and the frequencies allows us to explain the dielectric behavior of DyMnO3 ceramics by the universal dielectric response model. A separation of the intrinsic grain and grain boundary properties is achieved using an equivalent circuit model. The dielectric responses of this circuit are discerned by impedance spectroscopy study. The determined grain and grain boundary effects in the orthorhombic DyMnO3 ceramics are responsible for the observed high- and low-temperature relaxations in the dielectric properties.

With the continuous development of popular music, it has become an important part of social and cultural life. Many colleges and universities at home and abroad have carried out talent training for popular music related majors. Academia and industry have also done a lot of research work on popular music related issues. Because of the times, it is imperative to put forward and establish popular musicology. This paper discusses the setting of popular musicology and related issues from three aspects: the background and reasons of popular musicology, the institutional basis for the setting of popular musicology, and the theoretical proof of the setting of popular musicology. In addition, some orientations of the subordinates of popular musicology are put forward.

Popular music has gone through more than one hundred years since it came into being, and has become the most popular form of music culture in the world. Popular music belongs to popular culture. Based on the perspective of popular culture, the author puts forward and summarizes the nine cultural characteristics of popular music. The epoch of popular music, the popularity of popular music, the diversity of popular music styles, the commerciality of popular music, the scientific and technological nature of popular music communication, the mainstream singing of popular music works, the urbanization characteristics of popular music, the directness and sincerity of emotional expression of popular music, and the openness of popular music creation.

Soybean has been cultivated in China for 5,000 years. The soybean cyst neamtode (SCN), Heterodra glycines, was recongnized in Northeastern China in 1899. Currently, it is known to occur in 12 provinces. The biology of SCN was investigated in several provinces. Six races of SCN were identified (race 1, 2, 3, 4, 5 and 7). About f10,000 soybean germplasm lines were evaluated for their resistance to race 1, 3, 4 and 5 of SCN. At least two black-seeded cultivars are resistant to all four races. Several tolerant soybean cultivars with yellow seed coat were released and are in production. Additional resistant cultivars are being developed. Nematicides were not applied in production Potential biocontrol agents and related aspects are being investigated.

As a special monopoly industry, some of its monopoly organizations have a positive role in promoting the stable development of international trade, so they are granted with some anti-monopoly immunity privileges, among which the liner conference is the most typical monopoly organization. In the history of modern world shipping, the appearance of liner conference is undoubtedly a halo.With the acceleration of economic globalization, transnational trade is increasingly popular, and the proportion of Asia's economy and trade is increasing. Global cargo owners and consumers of transportation of the high demand for quality of service, growing thirst for scale economic benefit, and international shipping industry in the fierce competition to get rid of the plight of long-term exploration, all these factors, are calling for more global carrier, require a broader course coverage, there is more dense plane on the trunk routes, and in the course of both ends must have the "door to door" multimodal transport and has the additional value of integrated logistics services.