On the accuracy of the numerical integrals of the newmark’s method for computing inelastic seismic response

The paper proposes an algorithm of the numerical integration with the modal analysis for computing inelastic seismic responses, and furthermore, the accuracy of the numerical integration with the Newmark’s =1/4 method that is most popular in the earthquake engineering is discussed by comparing with the response computed by the proposed method

Tuna and billfish larval distributions in a warming ocean

Tuna and billfish are charismatic pelagic fishes attracting considerable scientific attention due to their ecophysiological and socioeconomic importance. However, the knowledge of their basin-wide spawning and larval habitats, especially in a warming ocean, is limited. We use the largest available dataset on tuna and billfish larvae in the Pacific Ocean to build a geostatistical species-distribution model with high explanatory power. The results reveal the spatial distribution of tuna and billfish larvae through all seasons across the Pacific. The model also identifies the optimal temperature ranges for nine major species and assesses the potential impact of ocean warming on larval distributions. We additionally present evidence that environmental variables, such as pH, phosphate concentration, and sea-surface height, exert secondary effects on larval distributions that warrant further investigation. Our findings make a quantum leap in understanding the ecophysiology of tuna and billfish, providing valuable information for future conservation efforts.Comment: 26 pages, 1 table, 6 figure

How can we manipulate a communication network to create collaboration?

A wide range of products and services has been commoditized as a result of globalization of the economy, and companies have been increasingly seeking to derive their competitiveness from the knowledge creation of their staff. Social networking among employees is the basis of knowledge creation, and it has been pointed out that if management can support its social networks, it will be able to gain organizational strength. This paper uses the example of a company that has been evaluated highly for its utilization of ICT in business, we analyze the relationship between collaboration network and communication network. Based on the results, we propose how to manage the collaboration network by manipulating communication style

SIMD-size aware weight regularization for fast neural vocoding on CPU

This paper proposes weight regularization for a faster neural vocoder. Pruning time-consuming DNN modules is a promising way to realize a real-time vocoder on a CPU (e.g. WaveRNN, LPCNet). Regularization that encourages sparsity is also effective in avoiding the quality degradation created by pruning. However, the orders of weight matrices must be contiguous in SIMD size for fast vocoding. To ensure this order, we propose explicit SIMD size aware regularization. Our proposed method reshapes a weight matrix into a tensor so that the weights are aligned by group size in advance, and then computes the group Lasso-like regularization loss. Experiments on 70% sparse subband WaveRNN show that pruning in conventional Lasso and column-wise group Lasso degrades the synthetic speech's naturalness. The vocoder with proposed regularization 1) achieves comparable naturalness to that without pruning and 2) performs meaningfully faster than other conventional vocoders using regularization.Comment: Accepted to SLT 202

Local lives in historical districts: residents’ perceptions of the objects of visitors’ gaze

This study examines residents’ perceptions of objects that visitors could focus on in a historical district as the aspects of the local lives. Aspects elicited from visitors’ responses in a preceding study were rated by residents in terms of the extent to which each portrays the local lives and to which it depicts an intention to attract visitors. Cluster analysis of the ratings surfaced two types of aspects, which are touristic and non-touristic local lives, and analysis of variance illustrated that some touristic and non-touristic aspects were rated as so more clearly by residents in rigidly preserved areas. The results also imply some similarities between visitors’ and residents’ perceptions

3D Particle Simulation of Liver Cell Proliferation with Angiogenesis - Partial Hepatic Lobule Formation-

Recently, the prevalence of viral hepatitis patients has been increasing. Therefore, the reconstruction of liver based on tissue engineering has attracted significant attention. However, the formation or regeneration mechanisms of the liver have not been elucidated; therefore, practical regenerative medicine technology based on tissue engineered liver has not been accomplished. In this study, we propose an analysis model using a Particle Model as the first step. The analysis object is a hepatic lobule. The purpose of this analysis is to elucidate the process of cell proliferation, mechanisms, and states at the micro scale. We used parameters which were obtained by experiments using rats relating to diffusivity, oxygen concentration, and oxygen consumption of a cell. Moreover, we used complex velocity potential of fluid dynamics and obtained a result corresponding to a real hepatic lobule, qualitatively.The 6th TSME International Conference on Mechanical Engineering, 16-18 December 2015, at The Regent Cha-am beach Resort, Hua-Hin, Thailand

Eliciting the aspects of local lives in a historical district as perceived by visitors

This study aims to extract the elements that visitors could focus on in a historical district as the aspects of the local lives and visitors’ evaluation of them by analyzing respondents’ open-ended responses about things that they thought attractive in the targeted historical districts and objects through which they sensed the lives of the locals. The visitors are grouped based on their ratings of their overall impression of the historical districts on Semantic Differential Scales, and comparison between the open-ended responses of the two groups is also attempted to obtain insights into the effects of their visiting experiences. The results imply the importance of visitors’ perception of the ways in which the districts are utilized. The areas that the respondents visited are also suggested to relate to their views of the district’s features, including the facets of the local lives

Shape analysis for inflatable structures with water pressure by the simultaneous control

Simultaneous control is an incremental technique that can be applied to shape analysis with soap film elements, when the shape has large volume and high rise. Furthermore, the tangent stiffness method is a clear and strict analytical theory to be able to solve the problems with large deformational behavior. The simultaneous control brings out the best performance for form-finding of isotonic surfaces in combination with the tangent stiffness method. This study proposes a significant modification of the simultaneous control. The modification realizes a wide application range regarding load conditions and boundary conditions for soap film shape analyses by calculating the average of surface tension. Results are presented as some computational examples in which the behavior of soap film structures under air pressure and /or water pressure becomes evident