14,773 research outputs found
RDLS-SS-DWT v. 0.9
No full textThis fileset contains the implementation of RDLS-DWT and SS-DWT in JPEG 2000 (RDLS-SS-DWT v. 0.9), which was used in a research described in: R. Starosolski, “Application of reversible denoising and lifting steps to DWT in lossless JPEG 2000 for improved bitrates,” Signal Processing: Image Communication, Vol. 39, Part A, pp. 249-63, DOI: 10.1016/j.image.2015.09.013, 2015 and R. Starosolski, “Skipping selected steps of DWT computation in lossless JPEG 2000 for improved bitrates,” submitted. This software is intended for research purposes only; it is provided "as is"; author makes no warranty of any kind, either express or implied, with respect to this software. <br
MODIFIED MEMBRANE FINITE-ELEMENT FORMULATION CONSIDERING BENDING EFFECTS IN SHEET-METAL FORMING ANALYSIS
No full textA modified membrane finite element formulation is derived to take the bending effect into account for sheet metal forming analysis. The algorithm developed is applied to a cylindrical and a square cup drawing problem to confirm its validity. The results show that the bending effect is appreciable in a class of deep drawing problems. It is also noted that the present algorithm enhances the convergence of a solution procedure and prevents numerical buckling
Numerical modeling of the multi-stage sheet pair hydroforming process
No full textThe need for reduction of the weight is an important issue in the sheet metal forming industry. The hydroforming process has become an effective manufacturing process, because it can be adapted to the manufacturing of complex structural components into a single body with high structural stiffness. Tube hydroforming has been successfully developed in industry such as in the manufacturing of the components of automotive vehicles. There still, however, remains the constraint of the geometrical shape that can be fabricated by tube hydroforming. In order to improve such a constraint in product shape of the tube hydroforming process and in the formability of conventional sheet metal forming, the hydroforming process of sheet metal has been studied. The sheet pair hydroforming process has been reported to have several important advantages compared with the conventional deep drawing process. Uniform deformation over the whole region is a main advantage in the sheet hydroforming process. However, the deformation of the sheet metal can be concentrated on a small region in the case of rectangular cup with a steep slope in the wall. In this paper, the multi-stage hydroforming process of a sheet pair is proposed in order to increase the formability of a structural parts having a shape like that of an oil pan. For the strict comparison of the proposed process, the blank holding force is controlled by a hydraulic valve to a constant value during deformation. The deformed shape and strain distribution of the manufactured parts with the proposed process are compared with the results of simulation. (C) 2004 Elsevier B.V. All rights reserved
Liposomes/chitosan scaffold/human fibrin gel composite systems for delivering hydrophilic drugs--release behaviors of tirofiban in vitro.
No full textTindakan SS yang Melakukan Percobaan Penyelundupan Kayu Hasil Hutan
Full text linkTulisan ini bertujuan untuk mengetahui pertanggungjawaban percobaan penyelundupan kayu hitam hasil hutan yang dilakukan oleh SS ditinjau dari Undang-Undang Nomor 18 Tahun 2013 tentang Pencegahan dan Pemberantasan Perusakan Hutan Jo. Pasal 53 ayat (1) Kitab Undang-Undang Hukum Pidana. SS menerima tawaran dari Suardi untuk mengangkut Kayu di Dusun Ranang Kasimbar Barat yang selanjutnya kayu tersebut akan diselundupkan ke daerah Tawao (Malaysia). Tindakan yang dilakukan oleh SS tidak dalam pengaruh daya paksa melainkan atas kehendaknya sendiri, sehingga tindakan yang dilakukan oleh SS dapat dikategorikan sebagai perbuatan melawan hukum sebagaimana atas perbuatan yang dilakukan oleh SS dapat dikenakan Pasal 12 huruf j Jo. Pasal 86 ayat (1) huruf b Undang-Undang Nomor 18 Tahun 2013 tentang Pencegahan dan Pemberantasan Perusakan HutanJo. Pasal 53 ayat (1) ke-1 Kitab Undang-Undang Hukum Pidana karenadalam hal ini SS mengetahui bahwa kayu yang diangkut tersebut akan diselundupkan ke daerah Tawao (Malaysia)
Iterative Detection of Unity-Rate Precoded FFH-MFSK and Irregular Variable-Length Coding
No full textOn optimal designs for nonlinear models: a general and efficient algorithm
No full textDeriving optimal designs for nonlinear models is challenging in general. Although some recent results allow us to focus on a simple subclass of designs for most problems, deriving a specific optimal design mainly depends on algorithmic approaches. There is need of a general and efficient algorithm which is more broadly applicable than the current state of the art methods. We present a new algorithm that can be used to find optimal designs with respect to a broad class of optimality criteria, when the model parameters or functions thereof are of interest, and for both locally optimal and multi- stage design strategies. We prove convergence to the desired optimal design, and show that the new algorithm outperforms the best available algorithm in various example
Effects of caffeine and exercise on the development of bone: a densitometric and histomorphometric study in young wistar rats.
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