Moment Boundedness of Linear Stochastic Delay Differential Equation with Distributed Delay

This paper studies the moment boundedness of solutions of linear stochastic delay differential equations with distributed delay. For a linear stochastic delay differential equation, the first moment stability is known to be identical to that of the corresponding deterministic delay differential equation. However, boundedness of the second moment is complicated and depends on the stochastic terms. In this paper, the characteristic function of the equation is obtained through techniques of Laplace transform. From the characteristic equation, sufficient conditions for the second moment to be bounded or unbounded are proposed.Comment: 38 pages, 2 figure

Effects of Shadowing on Listening Comprehension of Japanese Texts in Advanced Chinese Learners of Japanese: Manipulating Working Memory Capacity

We performed an experiment to examine the effects of shadowing on listening comprehension of texts. We explored whether the effects differ depending on individual differences in working memory capacity compared with listening for advanced Chinese students learning Japanese. The results showed that the shadowing effects on comprehension and memory of texts vary depending on the learner’s working memory capacity. On the one hand, shadowing facilitated memorization of meaning for learners with a large working memory capacity and understanding the situation model was comparable to listening. On the other hand, learners with a small working memory capacity did not experience the effect of promoting semantic memory and shadowing was less likely for comprehension of the situation model than listening. The results of this study suggest that listening comprehension and memory in a second language differ depending on the combination of listening method and working memory capacity

Memory Mechanism of Chinese-to-Japanese Consecutive Interpretation in Chinese Learners of Japanese: An Experimental Test Using Articulatory Suppression

The purpose of this study is to examine the memory mechanism of Chinese-to-Japanese consecutive interpretation in Chinese learners of Japanese based on the function of working memory (WM). In the experiment, through the presence or absence of articulation suppression task and the individual differentiators of WM capacity, it was investigated how the performance (information reproduction score and interpretation time) of consecutive interpretation was affected when phonological rehearsal was disturbed. As a result, it was found that (a) participants with large WM capacity had a high information reproduction score with articulation suppression, and (b) participants with small WM capacity were not affected by articulation suppression. Thus, it was clarified that when Chinese learners of Japanese performing Chinese-to-Japanese consecutive interpretation, information retention and processing at the comprehension stage diff er depending on the size of WM

1965 Volume 14 No. 2

https://engagedscholarship.csuohio.edu/lawpublications_gavel1960s/1032/thumbnail.jp

Characteristics Analysis of High Mechanical Strength Gymnastic Leather and Its Producing Process Optimization

Content: With the development of China sports, researches related to sports leather should be paid attention because they usually required higher strength than commonly used leather. In this paper, we focus on the production of gymnastics leather. In gymnastics, the athlete's hand will have high intensity contact with the balance bar, so the gymnastics leather is required to have high intensity performance. At the same time, in order to comply with the ornamental function, gymnastics leather is required to be light color. In this research, glutaraldehyde was used as the main tanning agent, while acrylic polymer and synthetic were used for retanning, in order to obtain high strength, environmentally friendly white gym leather. The shrinkage temperature and mechanical properties of tanned leather were determined and analyzed to determine the suitable tanning agent. Besides, other properties including softness, gas permeability, water permeability, flexing resistance and yellowing-resistance were also measured for selecting proper production process. Therefore, gymnastics leather with ideal performance can be prepared by this method, and the leather conforms to the practical application standard. In addition, the research has guiding significance and application prospect for high strength chrome-free tanned leather. Take-Away: Aldehyde tanning agents and retanning agents, which can be used for gymnastics leather making, were evaluated and selected to achieve ideal effect of finish leather. This research is meaningful to produce not only gymnastics leather but also other sporty leather which require high strength

Observation-based global soil heterotrophic respiration indicates underestimated turnover and sequestration of soil carbon by terrestrial ecosystem models

This study is supported by National Natural Science Foundation of China (grant number: 41988101), National Key R&D Program of China (2019YFA0607304), National Natural Science Foundation of China (Grant number: 42022004 and 41901085) and the Second Tibetan Plateau Scientific Expedition and Research Program (2019QZKK0606).Peer reviewedPostprin

OmniSeg3D: Omniversal 3D Segmentation via Hierarchical Contrastive Learning

Towards holistic understanding of 3D scenes, a general 3D segmentation method is needed that can segment diverse objects without restrictions on object quantity or categories, while also reflecting the inherent hierarchical structure. To achieve this, we propose OmniSeg3D, an omniversal segmentation method aims for segmenting anything in 3D all at once. The key insight is to lift multi-view inconsistent 2D segmentations into a consistent 3D feature field through a hierarchical contrastive learning framework, which is accomplished by two steps. Firstly, we design a novel hierarchical representation based on category-agnostic 2D segmentations to model the multi-level relationship among pixels. Secondly, image features rendered from the 3D feature field are clustered at different levels, which can be further drawn closer or pushed apart according to the hierarchical relationship between different levels. In tackling the challenges posed by inconsistent 2D segmentations, this framework yields a global consistent 3D feature field, which further enables hierarchical segmentation, multi-object selection, and global discretization. Extensive experiments demonstrate the effectiveness of our method on high-quality 3D segmentation and accurate hierarchical structure understanding. A graphical user interface further facilitates flexible interaction for omniversal 3D segmentation