Propagation of Dynamic Pressure into 1-D Model of Reclaimed Sand behind Caisson-Type Seawalls

Ports '01 ◽  
2001 ◽  
Author(s):  
Toshiyuki Shigemura ◽  
Kazuo Takiguchi ◽  
Kenjirou Hayashi ◽  
Koji Fujima
Keyword(s):  
2012 ◽  
Vol 30 (12) ◽  
pp. 1675-1692 ◽  
Author(s):  
M. Tátrallyay ◽  
G. Erdös ◽  
Z. Németh ◽  
M. I. Verigin ◽  
S. Vennerstrom

Abstract. Three events are discussed from the declining phase of the last solar cycle when the magnetopause and/or the bow shock were observed unusually close to the Earth due to major interplanetary disturbances. The observed extreme locations of the discontinuities are compared with the predictions of three magnetopause and four bow shock models which describe them in considerably different ways using statistical methods based on observations. A new 2-D magnetopause model is introduced (based on Verigin et al., 2009) which takes into account the pressure of the compressed magnetosheath field raised by the interplanetary magnetic field (IMF) component transverse to the solar wind flow. The observed magnetopause crossings could be predicted with a reasonable accuracy (0.1–0.2 RE) by one of the presented models at least. For geosynchronous magnetopause crossings observed by the GOES satellites, (1) the new model provided the best predictions when the IMF was extremely large having a large negative Bz component, and (2) the predictions of the model of Shue et al. (1998) agreed best with the observations when the solar wind dynamic pressure was extremely large. The magnetopause crossings close to the cusp observed by the Cluster spacecraft were best predicted by the 3-D model of Lin et al. (2010). The applied empirical bow shock models and the 3-D semi-empiric bow shock model combined with magnetohydrodynamic (MHD) solution proved to be insufficient for predicting the observed unusual bow shock locations during large interplanetary disturbances. The results of a global 3-D MHD model were in good agreement with the Cluster observations on 17 January 2005, but they did not predict the bow shock crossings on 31 October 2003.


1988 ◽  
Vol 01 (03/04) ◽  
pp. 113-121 ◽  
Author(s):  
S. F. Straface ◽  
P. J. Newbold ◽  
S. Nade

levels. In joints with simulated acute effusion the effect of position on IAP was dependent upon the volume of fluid in the joint. The results indicate that dynamic pressure levels in the moving knee are related to the movements of the joint. The characteristic and reproducible patterns of pressure may reflect changes in the structural configuration of the joint capsule and surrounding tissues during movement, and are influenced by the amount of fluid in the joint.


2020 ◽  
Author(s):  
Adib Rifqi Setiawan
Keyword(s):  

Pembelajaran tematik adalah metode pembelajaran yang menekankan pemberian tema khusus pilihan untuk mengajarkan beberapa konsep kurikuler Konsep integrasi beberapa subjek untuk mengajar di sekolah Indonesia, secara umum bukan hal baru dan tidak sukses pada masa lalu. Sebagai tambahan, beberapa orang menanggap pembelajaran tematik adalah satu kesempatan sementara sebagian lain memandang bahwa ini memiliki masalah. Namun, jawaban untuk bagaimana penerapan pembelajaran tematik belum dikaji secara menyeluruh. Riset ini menyusun desain pembelajaran tematik untuk membimbing siswa sekolah dasar dalam memperoleh literasi saintifik, mengggunakan pendekatan R&D model 4-D yang direduksi menjadi 3 tahap yaitu: define, design, dan develop. Luaran riset ini adalah desain pembelajaran tematik untuk membimbing siswa sekolah dasar dalam memperoleh literasi saintifik, yang keabsahan dan keandalan dalam kategori dapat digunakan.


2019 ◽  
Author(s):  
Adib Rifqi Setiawan

It is requisite that each activity is necessary to have a clear purpose as it was designed to be a well applicable plan. Scientific literacy indicates that science has value outside scientific practice is hardly modern idea and reality, although we lose sight of this history. Unfortunately, PISA study at 1999-2015 and several preexist works has shows that common science teachings don’t optimally guide students to achieve scientific literacy. As matter of fact, the answer to how to guide student achieving scientific literacy has not been obtained yet. By proposing this work, I am consider that thematic learning as an alternative method to guide students on achieving scientific literacy. Thematic learning is an educational method of teaching in which emphasis is given on choosing a specific theme for teaching concepts. It is based on integrating various information and use it to demonstrate the topic. Pedagogy of thematic learning is based on its exploration of broad areas in one theme. I don’t deny that the concept of integrating subjects to teach in Indonesian schools, generally is not new and has not been very successful in the past. In addition, some people consider thematic learning as an opportunity while others view it as having problems. The answer, however, to how thematic learning education implementation has not been studied yet comprehensively. Therefore, thematic learning lesson plans is very important to be designed then implemented. This work constructs lesson plan to guide primary education student on achieving scientific literacy, using R&D approach four-D model: define, design, develop, and disseminate. It gained lesson plan completed by student worksheets also assessment tests as well, that validated by experts and practitioners nor reliability counted based exclusively on test.


Author(s):  
M.G. Yagodin ◽  
E.I. Starovoytenko

The equipment for the production of wide range of metal powders purposed for powder metallurgy is described. The possibility for producing of powders by the plasma centrifugal spraying is considered taking into account the gas dynamic pressure. The calculated data on the powder size for different materials are given.


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