811 research outputs found
Taking Panzhihua, China as an example
ํ์๋
ผ๋ฌธ(์์ฌ)--์์ธ๋ํ๊ต ๋ํ์ :์ฌํ๊ณผํ๋ํ ์ฌํ๋ณต์งํ๊ณผ,2019. 8. ๊ฐ์๊ฒฝ.๊ฐ์กฑ๋ด์ ๋
ธํ ์์์ ๋ํ ๊ณต๊ธ ๋ถ์กฑ๊ณผ ๋
ธ์ธ ์์์ ์ฆ๊ฐ๊ฐ ์ค๊ตญ์ ๋
ธ๋ นํ ๋ฌธ์ ๋ฅผ ์ ์ฐจ ์ฌ๊ฐํ ์ฌํ ๋ฌธ์ ๋ก ๋ง๋ค๊ณ ์๋ค. ์ด๋ฅผ ์ํํ๊ธฐ ์ํด ์ค๊ตญ ์ ๋ถ๋ ๊ด๋ จ ์ ์ฑ
์ ๋ด๋์๊ณ ์ด๋ฅผ ๋ฐํ์ผ๋ก ๋ค์ํ ๊ฑฐ์ฃผ ํํ๊ฐ ๋ณ์กดํ๋ ์์์ด ๋ํ๋ฌ๋ค. ๊ทธ ์ค ์ฃผ๋ฅํํ๋ ์ง์ญ๊ฑฐ์ฃผ์ ์์ค๊ฑฐ์ฃผ์ด๋ค. ๋
ธ์ธ๋ค์ ๊ฑด๊ฐ์ํ์ ์ถ์ ๋ง์กฑ๋๋ ๊ฐ๊ธฐ ๋ค๋ฅธ ๊ฑฐ์ฃผํํ์์ ๋ค๋ฅด๋ค. ํ์ง๋ง ํ์ฌ์ ์ ํ์ฐ๊ตฌ๋ค์ ๋ค๋ฅธ ์ ์ฒด๊ฑด๊ฐ ์ํ์ ์ฐจ์ด์ ๊ฑฐ์ฃผํํ ๊ฐ์ ์ฐ๊ด์ ๋ํ ๊ฒฐ๋ก ์ด ์ผ์น๋๊ฒ ๋ํ๋์ง ์๋๋ค. ์ฆ, ์ ๋ฐ์ ์ผ๋ก ๋ค๋ฅธ ์์ค์ ์ ์ฒด๊ฑด๊ฐ๊ณผ ๊ฑฐ์ฃผํํ๋ฅผ ์ ํํ๋ ์ฌ์ด์ ๊ด๊ณ์ ๋ํ ์ผ์น๋ ๊ฒฐ๋ก ์ ์์ง์ ์์ผ๋ ์ถ๊ฐ์ ์ธ ์ฐ๊ตฌ๊ฐ ํ์ํ๋ค. ๋ฐ๋ผ์ ์ด ์ฐ๊ตฌ์ ๋ชฉ์ ์ ๊ฑฐ์ฃผํํ, ์ ์ฒด๊ฑด๊ฐ ๋ฐ ์ถ์ ๋ง์กฑ๋ ์ฌ์ด์ ์ฐ๊ด์ฑ์ ๋ถ์ํ๊ณ ์ด๋ฅผ ๋ฐํ์ผ๋ก ์ ์ฒด๊ฑด๊ฐ์ด ์กฐ์ ๋ณ์์ ๋งค๊ฐ๋ณ์๋ก ๊ฐ์ฃผ๋์ด ๊ฑฐ์ฃผํํ๊ฐ ์ถ์ ๋ง์กฑ๋์ ๋ฏธ์น๋ ์ํฅ์ด ์ ์ฒด๊ฑด๊ฐ์ ๋ฐ๋ผ ๋ณํํ๋์ง ์ฌ๋ถ๋ฅผ ํ์ํ๊ณ ์ ํ๋ค.
์ด ์ฐ๊ตฌ๋ 2019๋
2์๋ถํฐ 3์๊น์ง ์ค๊ตญ ํ์ฆํ์์ ๋
ธ์ธ 300๋ช
์ ๋์์ผ๋ก ์ค๋ฌธ์กฐ์ฌ๋ฅผ ๋ถ์์๋ฃ๋ก ์ฌ์ฉํ๋ค. ์ด ์ค 150๋ช
์ ์ง์ญ๊ฑฐ์ฃผ์๊ณ 150๋ช
์ ์์ค๊ฑฐ์ฃผ์ด๋ค. ์ฐ๊ตฌ ์ง๋ฌธ ๋ฐ ๊ฐ์ค๊ฒ์ฆ์ ๋ค์ค ํ๊ท ๋ถ์์ ์ฌ์ฉํ์๋ค.
๋ณธ ์ฐ๊ตฌ์ ์ฃผ์ ์ฐ๊ตฌ ๊ฒฐ๊ณผ๋ ๋ค์๊ณผ ๊ฐ๋ค.
์ฒซ์งธ, ์ง์ญ๊ฑฐ์ฃผ ๋
ธ์ธ๊ณผ ์์ค๊ฑฐ์ฃผ ๋
ธ์ธ๋ค์ ์ถ์ ๋ง์กฑ๋์ ์ฐจ์ด๊ฐ ์์ผ๋ฉฐ, ์์ค๊ฑฐ์ฃผ ๋
ธ์ธ์ ์ถ์ ๋ง์กฑ๋๋ ์ง์ญ๊ฑฐ์ฃผ ๋
ธ์ธ๋ณด๋ค ๋ฎ์๋ค.
๋์งธ, ์ ์ฒด๊ฑด๊ฐ๊ณผ ์ถ์ ๋ง์กฑ๋ ์ฌ์ด์๋ ์ ์ ์ธ ๊ด๊ณ๊ฐ ์์ผ๋ฉฐ, ์ด๋ ์ ์ฒด๊ฑด๊ฐ์ด ์ข์ ๋
ธ์ธ๋ค์ ์ถ์ ๋ง์กฑ๋๊ฐ ๋ ๋๋ค๋ ๊ฒ์ ์๋ฏธํ๋ค.
์
์งธ, IADL์ด ๊ฑฐ์ฃผํํ๊ฐ ์ถ์ ๋ง์กฑ๋์ ๋ฏธ์น๋ ์ํฅ์ ์กฐ์ ํจ๊ณผ๊ฐ ์์ด, IADL์ด ๋์ ์ฌ๋์ ๊ฒฝ์ฐ ์ง์ญ๊ฑฐ์ฃผ ๋
ธ์ธ์ด ์ถ์ ๋ง์กฑ๋๊ฐ ๋์๊ณ , IADL์ด ๋ฎ์ ๋
ธ์ธ์ ๊ฒฝ์ฐ ์์ค๊ฑฐ์ฃผ๊ฐ ์ถ์ ๋ง์กฑ๋๊ฐ ๋์๋ค.
๋ท์งธ, IADL์ด ๊ฑฐ์ฃผํํ์ ์ถ์ ๋ง์กฑ๋์ ์ ์๋ฏธํ ๋งค๊ฐํจ๊ณผ๊ฐ ์๋ค๋ ๊ฒ์ ๋ณด์ฌ์ฃผ๋๋ฐ, ์ด๋ ๊ฑฐ์ฃผํํ๊ฐ ์ถ์ ๋ง์กฑ๋์ ๋ฏธ์น๋ ์ํฅ์ด IADL์ ๋งค๊ฐํจ๊ณผ๋ฅผ ํตํด ๋ฌ์ฑ๋๋ค.
๋ณธ ์ฐ๊ตฌ๋ ๋
ธ์ธ์ ์๊ฐ์์ ์ถ๋ฐํ์ฌ ๊ฐ๊ธฐ ๋ค๋ฅธ ๊ฑฐ์ฃผํํ์ ๋ํ ๊ทธ๋ค์ ์ง์ ํ ์๊ตฌ๋ฅผ ๋ ์ ์ดํดํ๋ฉฐ,ย ๊ฑฐ์ฃผํํ๊ฐ ์ถ์ ๋ง์กฑ๋์ ๋ฏธ์น๋ ์ํฅ์ด ๋ค๋ฅธ์ง๋ฅผ ์ฐ๊ตฌํ๊ธฐ ์ํด ์ ์ฒด๊ฑด๊ฐ์ ์กฐ์ ๋ณ์/๋งค๊ฐ๋ณ์๋ก ์ฒ์์ผ๋ก ์ฌ์ฉ๋๋ค. ๋ํ, ๋ณธ ์ฐ๊ตฌ๋ ์ค๊ตญ ์ฐ์ดจ์ฑ ํ์ฆํ์์์ ์งํ๋ ์ค๋ฌธ์กฐ์ฌ ์๋ฃ๋ฅผ ๋ถ์์ ์ฌ์ฉํ๋ค.
์ด ์ฐ๊ตฌ๋ ๋
ธ์ธ ์ฌ๋ฆฌํ ๋ถ์ผ์ ํ์๋ค๊ณผ ๋
ธํ ์๋น์ค ์ ๊ณต์ ๊ฐ์ ์ ๋ฌธ๊ฐ๋ค์๊ฒ ์ฐธ๊ณ ๊ฐ์น๋ฅผ ๊ฐ์ง๋ค. ์ง์ญ์ฌํ์ ์์ค ๋ชจ๋ ๋
ธ์ธ์ ์ ์ฒด๊ฑด๊ฐ์ ์ด๋ก์ด ์๋น์ค์ ํ๋์ ๊ฐ๋ฐํ๊ณ ์ ์ ๊ฑด๊ฐ์ ๋ ๋ง์ ๊ด์ฌ์ ๊ธฐ์ธ์ฌ์ผ ํ๋ค. ๋ํ ์ ๋ถ๋ ์์ค๊ณผ ์ง๋ฐฉ ๋ณ์ ๊ฐ์ ์ฅ๊ธฐ์ ์ธ ํ๋ ฅ ๊ด๊ณ๋ฅผ ์ด์งํ๊ณ , ์ฐ๊ธ ๊ด๋ จ ์ ๋๋ฅผ ๋์ฑ ๊ฐ์ ํ์ฌ ๊ฒฝ์ ์ ๊ด์ ์์ ๋
ธ์ธ์ ๊ฑด๊ฐ์ ๋ ๋ ํ ๋ณด์ฅํด ์ฃผ์ด์ผ ํ๋ค.
๊ทธ๋ฌ๋ ์ด ์ฐ๊ตฌ์๋ ๋ช ๊ฐ์ง ํ๊ณ๊ฐ ์๋ค.
์ด ์ฐ๊ตฌ๋ ์ค๊ตญ ๊ตญ๋ด ์ด๋ก ์ฐ๊ตฌ์ ๊ด๋ จ ์ฒ๋์ ๋ถ์กฑ์ผ๋ก ์ธํด ์ค๊ตญ ๋
ธ์ธ๋ค์ ํน์ฑ์ ์ํํ ๊ฐ๋ฅ์ฑ์ด ์๋ค. ์๊ฐ๊ณผ ๊ฒฝ์ ์ ์กฐ๊ฑด์ ํ๊ณ๋ก ์ธํด ์ด ์ฐ๊ตฌ์ ์๋ ํ๋ณธ์ ์ผ์ ๊ธฐ๊ฐ ๋
ธ์ธ๋ค์ ์ํฉ์ ๋ฐ์ํ ๋ฟ์ด๋ฉฐ, ๋ํ์ฑ๊ณผ ํญ๋์ ํด์์๋ ์ฌ์ ํ ํ๊ณ๊ฐ ์๋ค. ํ์ ์ฐ๊ตฌ๋ ๋ณด๋ค ์ ๊ตํ ์ฐ๊ตฌ ๋ฐฉ๋ฒ์ ์ฌ์ฉํ๊ณ , ์ด๋ก ์ ๊ทผ๊ฑฐ๋ฅผ ๊ฐํํ๋ฉฐ, ํ๋ณธ ํฌ๊ธฐ๋ฅผ ํ๋ํ์ฌ ์ฐ๊ตฌ ๊ฒฐ๋ก ์ ๋ ์๋ฏธ ์๋ ์ ์ ์ ์ํ ํ์๊ฐ ์๋ค.The insufficient supply of family old-age resources and the increasing demand for the elderly are gradually making the aging problem in China a serious social problem. Due to the increasing needs of older adults and to alleviate the shortage, China has witnessed the coexistence of diversified old-age living modes, with the primary modes being community living and institutional living. The health status and life satisfaction of the elderly are different under different living modes. However, there is still no consensus about the relationship between different physical health conditions and the choice of living modes. This limits our understanding of the relationship between old peoples physical health and life satisfaction in different living modes, which needs further study. Therefore, the purpose of the study is to analyze the association among living modes, physical health and life satisfaction, and on this basis, physical health will be regarded as a moderating and mediating variable to further explore whether the influence of living modes on life satisfaction will change according to physical health.
The study conducted a questionnaire survey of 300 elderly people in Panzhihua City from February to March 2019. Among them, 150 were community living and 150 were institutional living. The research questions and hypotheses were examined by multiple regression analyses.
The main research results of this paper are as follows: 1) there are differences in life satisfaction between the elderly people in the community and those in institutions, and the life satisfaction of the institutional-living was lower than the community-living among the elderly; 2) there is a positive relationship between physical health and life satisfaction, which means that elderly people with better health will be more satisfied with their lives; 3) there is a significant moderating effect the relationship between IADL and life satisfaction: the elderly with a good IADL level in communities have a higher level of life satisfaction, while those with a bad IADL have higher life satisfaction in institutions; 4) the results also show that there is a significant mediating effect of IADL on living modes and life satisfaction, which means that the effect of living modes on life satisfaction is achieved through the mediating effect of IADL.
Starting from the elderly people themselves, this paper achieves an understanding their true desire for differentย living modes, and physical health is used as a moderating/mediating variable for the first time to study whether the influence of living modes on life satisfaction was different due to physical health. Additionally, this study conducted a field survey in Panzhihua, Sichuan Province, using the method of questionnaire analysis. As the experimental development zone of national health-preservation and rehabilitation in China, the results obtained on this basis can more realistically reflect the actual situation.
This study has significant reference value for scholars in the field of elderly psychology and professionals such as providers of old-age services. Both communities and institutions should develop services and activities that are beneficial to the elderlys physical health and pay more attention to their mental health. Furthermore, the government should promote the establishment of long-term cooperative relationships between institutions and local hospitals, and further improving the construction of the pension-related system to provide a strong guarantee for the health of the elderly from an economic perspective.
However, there are some limitations in this study. Due to the insufficiency of Chinese domestic theoretical research and relevant scales, this study may ignore some characteristics of Chinese elderly people. The limitations of time and economic conditions also make the sample of this article only reflect the situation of the elderly in a period of time, and there are still some shortcomings in the representation and wide-scale promotion. Future research can use more diverse research methods, strengthen theoretical support, and expand the sample size to make more meaningful points to the research conclusions.Chapter 1. INTRODUCTION 1
1.1 PROBLEM STATEMENT AND RESEARCH OBJECTIVES 1
1.2 RESEARCH QUESTIONS 9
Chapter 2. LITERATURE REVIEW 10
2.1. THE DEVELOPMENT OF THE PENSION INDUSTRY IN PANZHIHUA, THE CLASSFICATION AND SELECTION Of THE LIVING MODES 10
2.1.1 The Development of the Pension Industry in Panzhihua 10
2.1.2 Classification and Content of Different Living Modes 13
2.1.3 Selection of the Living Mode and Its Rationality In the Study 14
2.2. DEFINITION OF TERMS 16
2.2.1 Life Satisfaction 16
2.2.2 Community Living 18
2.2.3 Institutional Living 20
2.3. LIVING MODES AND LIFE SATISFACTION 22
2.3.1 Community Living and Life Satisfaction 22
2.3.2 Institutional Living and Life Satisfaction 22
2.4. PHYSICAL HEALTH AND LIFE SATISFACTION 23
2.5. LIVING MODES AND PHYSICAL HEALTH 24
2.6. DEMOGRAPHIC VARIABLES AND LIFE SATISFACTION 26
2.7. LIVING MODES, PHYSICAL HEALTH ADN ASSOCIATION WITH ELDERS LIFE SATISFACTION 27
2.7.1. The Moderating Effect of Physical Health 27
2.7.2 The Mediating Effect of Physical Health 29
Chapter 3. CONCEPTUAL FRAMEWORK AND RESEARCH HYPOTHESES 31
3.1 CONCEPTUAL FRAMEWORK 31
3.2 RRSEARCH QUESTIONS AND RESEARCH HYPOTHESES 32
Chapter 4. RESEARCH METHODS 33
4.1. RESEARCH SUBJECTS 33
4.2. DATA COLLECTION 33
4.3 RESEARCH PROCEDURES 35
4.4 MEASUREMENTS OF VARIABLES 36
4.4.1 Dependent Variable 36
4.4.2 Independent variables 36
4.4.3 Moderating/Mediating variables 37
4.4.4 Control variables 38
4.5 PLANED ANALYSIS 41
Chapter 5. RESEARCH FINDINGS 43
5.1 DEMOGRAPHIC CHARACTERISTICS OF ALL PARTICIPANTS 43
5.2 DESCRIPTIVE STATISTICS OF THE MAJOR VARIABLES 50
5.3 CORRELATION MATRIX OF MAJOR VARIABLES 51
5.4 TEST OF HYPOTHESES 53
5.4.1 The Moderating Effect of Physical Health 55
5.4.2 The Mediating Effect of Physical Health 64
Chapter 6. CONCLUSION 75
6.1 SUMMARY OF FINDINGS 75
6.2 DISCUSSION OFMAJOR FINDINGS 78
6.2.1 The Relationship Between Living Modes and Life Satisfaction 78
6.2.2 The Relationship Between Physical Health and Life Satisfaction 80
6.2.3 The Association among Living Modes, Physical Health and Life Satisfaction 82
6.2.4 The Effect of Control Variables and Life Satisfaction 86
6.3 IMPLICATIONS 89
6.3.1 Theoretical Implications 89
6.3.2 Practical Implications 90
6.3.3 Policy Implications 93
6.4 LIMITATIONS AND FUTURE RESEARCH DIRECTIONS 94
REFERENCES 98
APPENDIX 118
๊ตญ๋ฌธ์ด๋ก 132Maste
One-shot ultraspectral imaging with reconfigurable metasurfaces
One-shot spectral imaging that can obtain spectral information from thousands
of different points in space at one time has always been difficult to achieve.
Its realization makes it possible to get spatial real-time dynamic spectral
information, which is extremely important for both fundamental scientific
research and various practical applications. In this study, a one-shot
ultraspectral imaging device fitting thousands of micro-spectrometers (6336
pixels) on a chip no larger than 0.5 cm, is proposed and demonstrated.
Exotic light modulation is achieved by using a unique reconfigurable
metasurface supercell with 158400 metasurface units, which enables 6336
micro-spectrometers with dynamic image-adaptive performances to simultaneously
guarantee the density of spectral pixels and the quality of spectral
reconstruction. Additionally, by constructing a new algorithm based on
compressive sensing, the snapshot device can reconstruct ultraspectral imaging
information (/~0.001) covering a broad (300-nm-wide)
visible spectrum with an ultra-high center-wavelength accuracy of 0.04-nm
standard deviation and spectral resolution of 0.8 nm. This scheme of
reconfigurable metasurfaces makes the device can be directly extended to almost
any commercial camera with different spectral bands to seamlessly switch the
information between image and spectral image, and will open up a new space for
the application of spectral analysis combining with image recognition and
intellisense
Adaptive Data Augmentation for Contrastive Learning
In computer vision, contrastive learning is the most advanced unsupervised
learning framework. Yet most previous methods simply apply fixed composition of
data augmentations to improve data efficiency, which ignores the changes in
their optimal settings over training. Thus, the pre-determined parameters of
augmentation operations cannot always fit well with an evolving network during
the whole training period, which degrades the quality of the learned
representations. In this work, we propose AdDA, which implements a closed-loop
feedback structure to a generic contrastive learning network. AdDA works by
allowing the network to adaptively adjust the augmentation compositions
according to the real-time feedback. This online adjustment helps maintain the
dynamic optimal composition and enables the network to acquire more
generalizable representations with minimal computational overhead. AdDA
achieves competitive results under the common linear protocol on ImageNet-100
classification (+1.11% on MoCo v2).Comment: Accepted by ICASSP 202
A van der Waals pn heterojunction with organic/inorganic semiconductors
van der Waals (vdW) heterojunctions formed by two-dimensional (2D) materials
have attracted tremendous attention due to their excellent electrical/optical
properties and device applications. However, current 2D heterojunctions are
largely limited to atomic crystals, and hybrid organic/inorganic structures are
rarely explored. Here, we fabricate hybrid 2D heterostructures with p-type
dioctylbenzothienobenzothiophene (C8-BTBT) and n-type MoS2. We find that
few-layer C8-BTBT molecular crystals can be grown on monolayer MoS2 by vdW
epitaxy, with pristine interface and controllable thickness down to monolayer.
The operation of the C8-BTBT/MoS2 vertical heterojunction devices is highly
tunable by bias and gate voltages between three different regimes: interfacial
recombination, tunneling and blocking. The pn junction shows diode-like
behavior with rectifying ratio up to 105 at the room temperature. Our devices
also exhibit photovoltaic responses with power conversion efficiency of 0.31%
and photoresponsivity of 22mA/W. With wide material combinations, such hybrid
2D structures will offer possibilities for opto-electronic devices that are not
possible from individual constituents.Comment: 16 pages, 4 figure
Nonlinear dynamics modeling and analysis of disc brake squeal considering acting process of brake force
Disc brake squeal of automobile is one of the hottest and most difficult issues concerned by automobile manufacturers and researchers. Considering the acting process of brake force, a simplified nonlinear dynamics model is developed in this paper. The nonlinear dynamics equations are set up and solved by theoretical method and numerical calculation. By studying the effects of key parameters on the systemโs behavior, the mechanism of brake squeal are analyzed and discussed. The results indicate that the state of system is more sensitive to the fluctuation of brake force than the variation of the negative slope of friction coefficient against the relative velocity between pad and disc. The dynamic characteristics of brake system are greatly connected with the components stiffness. The brake system may become weakly stable and easily produce brake squeal when tangential contact stiffness, normal contact stiffness and connection stiffness satisfy a certain relationship
Acoustic Scene Clustering Using Joint Optimization of Deep Embedding Learning and Clustering Iteration
Recent efforts have been made on acoustic scene classification in the audio
signal processing community. In contrast, few studies have been conducted on
acoustic scene clustering, which is a newly emerging problem. Acoustic scene
clustering aims at merging the audio recordings of the same class of acoustic
scene into a single cluster without using prior information and training
classifiers. In this study, we propose a method for acoustic scene clustering
that jointly optimizes the procedures of feature learning and clustering
iteration. In the proposed method, the learned feature is a deep embedding that
is extracted from a deep convolutional neural network (CNN), while the
clustering algorithm is the agglomerative hierarchical clustering (AHC). We
formulate a unified loss function for integrating and optimizing these two
procedures. Various features and methods are compared. The experimental results
demonstrate that the proposed method outperforms other unsupervised methods in
terms of the normalized mutual information and the clustering accuracy. In
addition, the deep embedding outperforms many state-of-the-art features.Comment: 9 pages, 6 figures, 11 tables. Accepted for publication in IEEE TM
I2CANSAY:Inter-Class Analogical Augmentation and Intra-Class Significance Analysis for Non-Exemplar Online Task-Free Continual Learning
Online task-free continual learning (OTFCL) is a more challenging variant of
continual learning which emphasizes the gradual shift of task boundaries and
learns in an online mode. Existing methods rely on a memory buffer composed of
old samples to prevent forgetting. However,the use of memory buffers not only
raises privacy concerns but also hinders the efficient learning of new samples.
To address this problem, we propose a novel framework called I2CANSAY that gets
rid of the dependence on memory buffers and efficiently learns the knowledge of
new data from one-shot samples. Concretely, our framework comprises two main
modules. Firstly, the Inter-Class Analogical Augmentation (ICAN) module
generates diverse pseudo-features for old classes based on the inter-class
analogy of feature distributions for different new classes, serving as a
substitute for the memory buffer. Secondly, the Intra-Class Significance
Analysis (ISAY) module analyzes the significance of attributes for each class
via its distribution standard deviation, and generates the importance vector as
a correction bias for the linear classifier, thereby enhancing the capability
of learning from new samples. We run our experiments on four popular image
classification datasets: CoRe50, CIFAR-10, CIFAR-100, and CUB-200, our approach
outperforms the prior state-of-the-art by a large margin
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