Deutsch als Fremdsprache in China – aktuelle Situation, Herausforderungen und Ausblick*

2020 ◽  
Vol 52 (1) ◽  
pp. 27-42
Author(s):  
Von Jin Zhao
Keyword(s):  
Double Degree

Abstract Der Beitrag stellt den wachsenden Bedarf an Unterricht in Deutsch als Fremdsprache in China vor und geht konkret auf das Deutschlernen im Germanistikstudium, in studienbegleitenden DaF-Kursen und in Mittelschulen ein. Es wird darauf hingewiesen, dass der schnelle Ausbau des Angebots für Deutsch als Fremdsprache zu einer steigenden Nachfrage nach DeutschlehrerInnen führt, die aufgrund eines fehlenden DaF-Studiums jedoch nicht angemessen ausgebildet werden. Auf dem Weg der Bemühungen, einen DaF-Masterstudiengang einzurichten, wird derzeit zuerst versucht, Masterstudierende an der Tongji-Universität durch ein double-degree-Studium in Deutschland als DeutschlehrerInnen zu qualifizieren.

Compact 2DOF liner based on a long elastic open-neck acoustic resonator for low frequency absorption

2021 ◽  
Vol 69 (1) ◽  
pp. 1-17
Author(s):  
Frank Simon ◽  
Delphine Sebbane ◽  
surname given-names
Keyword(s):  
Low Frequency ◽  
Acoustic Resonator ◽  
Degree Of Freedom ◽  
Tube Length ◽  
Remarkable Feature ◽  
Absorption Frequency ◽  
Acoustic Liners ◽  
Quarter Wavelength ◽  
Resonance Frequencies ◽  
Double Degree

Passive acoustic liners, used in aeronautic engine nacelles to reduce radiated fan noise, have a quarter-wavelength behavior. The simplest systems are SDOF-type (single degree of freedom), consisting of a perforated sheet backed with a honeycomb, whose absorption ability is limited to frequencies near the Helmholtz frequency. Thus, to widen the absorption frequency range, manufacturers use a 2DOF (double degree of freedom) system, with an internal layer over another honeycomb (stack of two resonators). However, one constraint is the limited thickness of the overall system, which reduces the space allotted to each honeycomb. A possible approach, based on a previous concept called LEONAR (long elastic open-neck acoustic resonator), could be to link each perforated layer to hollow tubes inserted in each honeycomb layer, in order to shift resonance frequencies to lower frequencies by extending the air column lengths. The presence of an empty chamber on both sides of the internal perforated layer also allows the tube length to be increased through tubes crossing both cavities, preserving the liner thickness. The main aim of this article is to mathematically describe the principle of a 2DOF LEONAR and to show the relevance of the mathematical model through FEM simulations and experiments performed in an impedance tube. Moreover, its behavior is analyzed through a parametric study, in order to explore its potential for an aeronautic application. A remarkable feature of 2DOF LEONAR-type materials with insertion of bottom tubes in the higher cavity is the possibility of maintaining the low frequency band provided by the original LEONAR concept, while adding a second absorption peak at a higher frequency, by the second layer and the accompanying tubes. There is a fundamental difference from classical SDOF/2DOF resonators, for which the thicknesses are obviously different.

Double-degree oral and maxillofacial surgeons: Was it worth it?

1988 ◽  
Vol 46 (10) ◽  
pp. 872-874 ◽  
Author(s):  
H. Dexter Barber ◽  
Paul Sejud
Keyword(s):  
Double Degree

scholarly journals Public Event: Global to Village: Grounding Communication Research in Rural China

2015 ◽  
Vol 7 (2) ◽  
Author(s):  
Christine Rose Ackerley
Keyword(s):  
Rural China ◽  
Degree Program ◽  
Ethnographic Research ◽  
Global Communication ◽  
Communication Research ◽  
Public Event ◽  
Initial Analysis ◽  
Double Degree

The M.A. Double Degree Program in Global Communication is holding a workshop on ethnographic research in rural China, to share their initial analysis and experiences in the field. The workshop will be at SFU Harbour Centre, room 1530 from 7 pm to 9 pm on November 12. Please see the attached poster for details.

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