Geometrical features

Ebook "Room acoustics (Sixth edition)" presents several additional new sections, for instance on the reflection of a spherical wave from a wall, on finite element methods for sound field calculation and on virtual reality, as well as giving an overhaul of the standard material. Particular emphasis is given to the properties and calculation of reverberation, the most obvious acoustical feature of a room.

323p giangdongdinh 28-05-2024 2 1   Download

The current research is undertaken by performing Computational Fluid Dynamics (CFD) simulations for a 2D aerofoil fitted with a shock control bump at a transonic flow condition. Reynolds-Averaged Navier-Stokes equation coupled with turbulence models is adopted to solve the flowfield. The bump has a conventional geometric feature which consists of a ramp, a crest and a tail, and it has eight variants for which the designed parameters are reasonably specified according to the compressible aerodynamics theory.

84p runthenight04 02-02-2023 5 2   Download

In clay-rich sedimentary rocks, the pore network is considered to play a key role in controlling transport properties. The pore size distribution (PSD) of clay-rich rocks, the geometrical features of the pore network, and the clay content are parameters governing the diffusion process through clay formations.

13p vironald 15-12-2022 7 2   Download

The paper proposes a novel method that applies Buckingham's Pi theory and the Random Forest regression to improve the prediction accuracy of the sequent depths of the hydraulic jump in the trapezoidal channel. The study has shown that Machine Learning models can be efficient for the determination of the geometrical features of the jump and have high ability in many real projects.

9p vispyker 14-11-2022 13 4   Download

In this paper, we propose to use Conformal Geometric Algebra (CGA) to feature extraction and reduce dimensions of the data. First, the action data is preprocessed to normalize the data. Next, use CGA to reduce dimensions of data and create feature vectors. Finally, use the LSTM for training and prediction. The experiment was conducted on the CMU dataset with 8 different actions and the results showed that the proposed method has higher results than the previous methods.

7p visherylsandberg 18-05-2022 17 3   Download

Lecture Digital camera design - Section 1: Performance evaluation provide students with knowledge about display features; Diagnostic analyses; geometrical and Diffraction-based Image evaluations and System and Other evaluations.

48p redemption 20-12-2021 15 2   Download

A compilation of depositional facies and 14C ages from the two new cores (DT2, and DT4 cores) considerably contribute to clarify the Holocene evolution of the paleo Mekong River (MR) incised valley, Mekong River Delta (MRD). The longitudial section documents the geometric features indicating the different gradients along the paleo-Mekong incised valley from the Cambodian lowerlands through delta plain up to the shallow offshore of the MRD.

4p viwendy2711 05-10-2021 10 1   Download

Edge detection is a basic analogy of image processing. It is successful in detecting and extracting the objects features . It is the set of mathematical methods whose goal is to identifying points and shapes in a digital image of 2d geometric shapes to what place changes sharply the image brightness. A survey of diverse methodologies of edge detection are provided here.

4p phanngocminhtam 14-09-2021 11 1   Download

This paper presents a low cost method for measuring accuracy and pose repeatability of industrial robots, which can be used for robot home calibration, accuracy improvements, robot control compensation or evaluating robot features. The method is proposed based on the kinematical relations of the robot joints and the geometrical data from the robot controller with respect to several defined coordinate systems.

5p cothumenhmong11 10-05-2021 18 4   Download

Our study aimed to investigate whether geometrical features (size, shape, or alignment parameters) of the femoral condyle affect the morphology of the trochlear groove. Among size, shape, and alignment parameters, the latter two exhibited partial influence on the morphology of the trochlear groove.

7p vitennessee2711 02-02-2021 10 1   Download

Proteins play a special role in bioinformatics. The surface shape of a protein, which is an important characteristic of the protein, defines a geometric and biochemical domain where the protein interacts with other proteins. The similarity analysis among protein models has become an important topic of protein analysis, by which it can reveal the structure and the function of proteins.

10p vioklahoma2711 19-11-2020 5 1   Download

This paper describes the development of Hole Recognition System (HRS) for Computer-Aided Process Planning (CAPP) using a neutral data format produced by CAD system. The geometrical data of holes is retrieved from STandard for the Exchange of Product model data (STEP). Rule-based algorithm is used during recognising process. Current implementation of feature recognition is limited to simple hole features. Test results are presented to demonstrate the capabilities of the feature recognition algorithm.

11p 12120609 01-06-2020 10 1   Download

Following previous investigations by Giordano and Mancuso [1] and Mancuso and Giordano [2,3] on the differential rotation of the solar corona as obtained through the analysis of the intensity time series of the O VI 1032 A˚ spectral line observed by the UVCS/SOHO telescope during solar cycle 23, we analysed the possible influence of projection effects of extended coronal structures on the observed differential rotation rate in the ultraviolet corona.

5p kethamoi1 17-11-2019 19 1   Download

In this paper, we present a new approach for data hiding in digital images by using multiple embedded stages. The new scheme involves feature point detector that orient for a novel Contourlet transform-hiding algorithm. By this way, our model can withstand geometric, desynchronization attacks and other common attacks with a high capacity.

8p dannisa 14-12-2018 16 1   Download

Lecture 6 - Representation of features geometric tolerances. In this chapter, the learning objectives are: How to represent standard engineering features, what are tolerances and how are they specified, surface finish & machining.

13p nomoney12 04-05-2017 50 3   Download

Tài liệu The New Origami contains dozens of original projects that employ cutting-edge techniques, including: modular origami (using interlocking pieces of paper); performance origami (accompanied by a story or explanation); geometrical origami (illustrating principals of geometry); kasaneori or layered paperfolding (using overlapping layers to create ribbons of color); puzzle origami (featuring interchangeable parts that create a brain-teasing effect); practical origami (making useable objects like envelopes, frames, and wallets); multiple symmetry (sinking, pleating, and folding to create...

196p thieulam5782 04-10-2015 120 26   Download

Polished decorated ware Paleography of the pottery General features Human figures The human hand Quadrupeds Reptiles Tadpoles Butterflies or moths Dragon-flies Birds Vegetal designs The sun Geometric figures Interpretation of the figures Crosses Terraced figures The crook The germinative symbol Broken lines Decorations on the exterior of food bowls Pigments Stone objects Obsidian

437p culao1122 22-01-2013 37 4   Download

In two famous papers [16], [17], Fong and Seitz showed that all finite Moufang generalized polygons were classical or dual classical. In fact, they obtained this result in group theoretical terms (classifying finite split BN-pairs), but Tits remarked the simple geometrical translation. And of course, the converse was already well known. In a search for a synthetic “elementary” proof of the Fong–Seitz result for the specific case of generalized quadrangles (which is the central and most difficult part in [16], [17]), Payne and J.A.

129p hotmoingay 04-01-2013 42 3   Download

Spatial database management deals with the storage, indexing, and querying of data with spatial features, such as location and geometric extent. The field emerged from Geographic Information Systems (GIS) and Computer Aided Design (CAD) applications, from which it became apparent that there is a need for the efficient management of large-scale spatial data. More recently, Location Based Services (LBS) brought spatial data management needs to common users, who routinely run spatial queries on their computers or mobile devices.

151p hotmoingay 04-01-2013 65 7   Download

In general, woven fabrics are known as the traditional textile fabrics for apparel manufacturing and are used widely in various fabric compositions as intermediate goods that affect human activities. The relative importance of woven fabrics as traditional textile materials is extremely large and currently application fields of woven fabrics as technical textiles are rapidly expanded by utilizing its geometric features and advantages.

304p wqwqwqwqwq 09-07-2012 64 11   Download