Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》
Abstract：动态媒体泛指电影、短视频等为主导的数字影像素材。在众多的Log技术中,我们主要以S-Log2为研究主导。而LUT预设的成像效果主要通过DAVinci Resolve软件(或Fcpx)来实现多LUT预设套件的生成。本文将通过对Log(LogArithmic)数字拍摄模式的研究与分析,将拍摄好的影像素材进行LUT预设效果处理,进而达到更广域、更多层次的影像色彩空间,并且能够实现多bit(BitrAte)的深度色彩调节,给影视后期工作者提供极大的创作空间。
Subjects: Geosciences >> Geography submitted time 2023-09-27 Cooperative journals: 《干旱区地理》
Abstract：区域空间格局及其形成机制对制定空间发展战略具有理论意义。以甘肃省为例，根据2000、2010年和2020年甘肃省统计资料，运用引力模型和断裂点模型识别区域空间格局，基于地理探测器分析形成机制，进而提出空间发展战略。结果表明：甘肃省空间格局分别为河西走廊一体化发展区、陇中同城化发展区和陇东南协同发展区三大分区。区域空间格局形成的演化机制因地理尺度的差异而不同，20002020年人口发展和经济水平对区域空间格局的形成一直发挥着基础性作用，政策调控则发挥着关键性作用，因子间的共同交互作用推动甘肃省空间格局的形成。从三大分区层面提出河西走廊一体化发展区形成一轴、四圈、陇中同城化发展区形成一核牵引、五极并进、陇东南协同发展区形成四极平行发展的新发展空间思路；省域层面提出手指形高质量空间发展战略，促使甘肃省由增长极模式和点-轴模式的发展阶段转向区域网络极核模式。
Subjects: Physics >> General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. submitted time 2023-09-01 Cooperative journals: 《中国全科医学》
Abstract： Falls are the important causes of morbidity and mortality in older adults. Although clinical staff have paid attention to the management of falls，adherence to fall interventions is not satisfactory，resulting in the high incidence of fall. Understanding the older adults' own perception of fall risk from their perspective may be the key to fall prevention，especially active fall prevention. In this paper，we reviewed the concept of fall risk perception，behavioral consequences and influencing factors of fall risk perception in older adults from the perspective of "the first person responsible for health"，and found that there are fewer studies on fall risk perception in older adults at home and abroad，the conceptual connotation still needs to be further explored. Subjective perceptions of fall risk in older adults can lead to different patterns of fall risk coping behaviors that influence fall risk. The influencing factors of fall risk perception mainly focus on the emotional psychology，physiological conditions，social culture，and physical environment，with the influencing process through subjective cognition. Empirical studies can be used to further validate the psychological cognitive mechanisms of fall risk perception in conjunction with the risk perception formation process in the future，in order to provide empirical evidence for proactive fall prevention.
Subjects: Medicine, Pharmacy >> Preventive Medicine and Hygienics submitted time 2023-06-16 Cooperative journals: 《中国全科医学》
Abstract： Background Previous studies have shown that self-rated health would be used as a simple assessment indicator for frailty，and individuals with poor self-rated health status are at higher risk of frailty. However，the association between self-rated health and frailty may be different and the effectiveness of self-rated health in frailty assessment may vary in apathetic older adults. Objective To explore the moderating role of apathy in the association between self-rated health and frailty among community-dwelling older adults，so as to provide theoretical guidance for the application of the self-rated health in the assessment of frailty in apathetic older adults. Methods From November 2021 to March 2022，a total of 384 community dwelling older adults were selected as respondents by convenience sampling method，including 179 cases in Nanjing communities and 205 cases in Donghai Communities. Questionnaire surveys were conducted using the General Information Questionnaire，Fried Frailty Phenotyp（FFP），Geriatric Depression Scale（GDS-3），and the self-reported health（SRH）. Generalized linear model was used to analyze the association between self-rated health and frailty of community-dwelling older adults. The model 1 of the SPSS macro program process compiled by Hayes was used to analyze the moderating role of apathy on the association between the self-rated health and frailty，with simple slope analyze performed and simple slope graphs plotted. Results The median FFP and SRH item scores of 384 community-dwelling older adults were 1.00（2.00）and 4.00（1.00），respectively， with the detection rate of apathy of 55.5%（213/384）. The results of the generalized linear model showed that the relationship between the self-rated health and frailty of community-dwelling older adults was significant（b=0.310，P<0.001）. The results of the moderating effect test showed that apathy played a moderating role in the relationship between self-rated health status and frailty in community-dwelling older adults（b=0.355，t=3.074，P=0.002），and the results of simple slope analysis showed that the simple slope of the non-apathy group and apathy group was 0.100（t=1.209，P=0.228）and 0.455（t=5.206，P<0.001），respectively. Conclusion There is an association between self-rated health and frailty in community-dwelling older adults，and the application of the self-rated health can help community health workers assess frailty in older adults. Apathy plays a moderating role in the relationship between self-rated health and frailty. Compared with the non-apathetic older adults，the association between self-rated health and frailty was significant in apathetic older adults. Strengthening the self-rated health assessment of older adults is beneficial to the identification of their frailty.
Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-31 Cooperative journals: 《腐蚀科学与防护技术》
Abstract： none
Subjects: Medicine, Pharmacy >> Clinical Medicine submitted time 2023-01-30 Cooperative journals: 《中国全科医学》
Abstract：
With the development of information technology, artificial intelligence shows great potentials for clinical diagnosis and treatment. Nevertheless, algorithmic bias in artificial intelligence can lead to problems such as unequal distribution of healthcare resources, which significantly affect patients’ health equity. Algorithmic bias is a technical manifestation of human bias, which is related to the process of artificial intelligence development, including data collection, model training and optimization as well as output application. Since healthcare providers have a direct impact on patients’ health, they should take measures to prevent algorithmic bias and related health equity. It is also important for healthcare providers to ensure the unbiasedness of health data, optimize the fairness of artificial intelligence, and enhance the transparency of its output application. In addition, healthcare providers also need to consider how to solve algorithmic bias and bias related health inequity in clinical practice in order to fully and properly protect patients' health equity. This paper reviews the causes and countermeasures of algorithmic bias in the health field to improve healthcare providers’ awareness and ability in identifying and addressing algorithmic bias, as well as provide empirical foundations for ensuring the health equity in the information age.
Subjects: Medicine, Pharmacy >> Clinical Medicine submitted time 2023-01-03 Cooperative journals: 《中国全科医学》
Abstract：
Background Self-rated health is negatively related to frailty. The better the self-rated health (SRH) is, the lower the degree of frailty is. The relationship between the two conditions may be different in people suffering from apathy. Objective To explore the moderating effect of the apathy on the relationship between SRH and frailty among community-dwelling older adults. Methods A convenience sampling method was adopted. Fried Frailty Phenotype (FFP), Geriatric Depression Scale (GDS-3), Self-Rated Health (SRH), and demographic information were used to investigate the research question with 384 community-dwelling older adults. Results The strength of the relationship between SRH and frailty was moderated by apathy (B= -0.355，t= -3.074，P< 0.002), such that, apathy strengthened the predictive effect of SRH on frailty. Conclusion SRH is negatively related to frailty. Apathy plays an important positive role in strengthening the negative relationship between SRH and frailty among Chinese community-dwelling older adults.
Subjects: Medicine, Pharmacy >> Clinical Medicine submitted time 2022-12-20 Cooperative journals: 《中国全科医学》
Abstract：
With the increasing aging population in China, older adults’ falls and fall-related injuries have gained increased attention, and preventive guidelines have also been developed and regularly updated. In 2022, The World Falls Guidelines Task Force assembled 96 experts from 39 countries issued the World Guidelines for Falls Prevention and Management for Older Adults. The guideline uses a person-centered approach by taking full account of the needs of older adults on the management of falls and the perceptions and experiences of caregivers and other stakeholders on preventing falls of older adults, as well as the utility of the guideline in various care settings and locations with limited resources. The guideline also incorporates the latest evidence on the use of e-health for fall prevention to provide new clinical recommendations on the screening, assessment, and management of risk for falls among community-dwelling older adults. It also promotes physical activity and falls prevention for all older adults. The current work offers an in-depth interpretation of guidelines and provides practical guidance to Chinese clinicians and community workers for prevention and management of falls in older adults.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2022-04-07 Cooperative journals: 《计算机应用研究》
Abstract： Rain streaks can seriously degrade the quality of captured images and affect subsequent computer vision tasks. In order to improve the quality of rainy images, this paper proposed a single-image deraining algorithm based on Transformer. First, the algorithm obtains a wide range of receptive fields through the transformer with window mechanism, and then obtains the contextual information of rain streak features to improve the ability of the model to extract rain streak features; secondly, the algorithm extracts and fuses different kinds and levels of features through multi-branch modules to improve the model's ability to characterize complex rain streaks information; finally, this paper fuses the shallow features and deep features through residual connections to complete the missing details in the deep features, which enhances the expression ability of the network. The experimental results on the public datasets Rain100L, Rain100H and the private dataset Rain3000 show that the method is more effective in removing rain streaks compared to existing algorithms while better recovering the lost background texture information in the images. PSNR and SSIM have respectively reached 38.33/0.9855, 28.42/0.9000 and 34.51/0.9643.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2022-04-07 Cooperative journals: 《计算机应用研究》
Abstract： To address the problems of large operating costs and fairness between doctors and patients in the current hospital bed scheduling, this paper proposes a multi-objective stochastic programming model for single department bed allocation considering hospital operating costs and patient fairness. First, this paper proposes a weighted measure of responsiveness and access to reflect the fairness of the doctor-patient relationship based on relevant hospital-based policies, and establishes a multi-objective stochastic programming model considering the operational cost of the hospital; second, to facilitate the algorithm solution, a linearization method is introduced to process the complex model into a mixed integer linear model; finally, the improved NSGA2 algorithm solve the multi-objective problem The improved algorithm enhances the convergence and diversity of the algorithm, and the experimental results verify the validity and applicability of the model by adjusting different parameters for different numerical experiments.
Subjects: Biology >> Botany >> Applied botany submitted time 2021-11-04 Cooperative journals: 《广西植物》
Abstract： In order to obtain the optimal fertilization formula for Pinus massoniana seedlings, one-year-old seedlings were selected and grown in a L16 (43) orthogonal design. Traits, such as seedling height, ground diameter, biomass, leaf chlorophyll content and N, P, K contents, were measured to explore the effects of different N, P, K ratio fertilization on growth characteristics. The results were as follows: (1) There were significant differences in seedling height, ground diameter, biomass, quality index, chlorophyll and nutrient contents among different fertilization ratio treatments. Among them, treatment 12 had the highest biomass, quality index, chlorophyll a and total chlorophyll contents, and membership value. (2) N application had highly significant effects on growth and physiology. K application had highly significant effects on seedling height, ground diameter, above-ground biomass, total biomass, chlorophyll and needle nutrients. Besides, P application had highly significant effects on chlorophyll a, chlorophyll b, N and P contents in needles, but had significant effects on seedling height, under-ground biomass and total chlorophyll content. (3) N application had greater effect on seedling height, ground diameter, above-ground biomass, total biomass, quality index, chlorophyll a content, total chlorophyll content and N content in needles than K and P applications. The effects on under-ground biomass and P contents of needles were as N>P>K. (4) N3 level was beneficial to seedling height, diameter and biomass accumulation. N4 level was beneficial to the accumulation of chlorophyll content and the content of N and P in needles, while P4 level was beneficial to biomass accumulation, chlorophyll content and P accumulation. Comprehensive analysis showed that N should be applied mainly in the early stage of P. massoniana seedlings, supplemented by P and K. N3P4K2 nutrient solution can improve the overall quality of seedlings, with N, P and K concentrations as 8.25, 1.00 and 1.50 mmol稬-1, respectively.
Subjects: Astronomy >> Astrophysical processes submitted time 2021-09-29 Cooperative journals: 《天文研究与技术》
Abstract：三维升降转台是高海拔宇宙线观测站(LHAASO)广角切伦科夫望远镜阵列(WFCFA)成像激光雷达标定系统的核心组成部分，主要由慢控子系统、机械子系统和标准零点子系统构成，用于精确控制激光束的出射方向。本文采用高精度数字图像处理技术对三维升降转台的性能进行研究，结果表明其旋转和升降定位精度分别为0.005°和0.056 mm、重复精度分别为0.003°和0.075 mm，满足成像激光雷达标定系统的实验要求。三维升降转台的自动控制巡航功能，有效减少了人工干预，提高了系统远程使用的可靠性和效率。标准零点的校准功能可以有效地监测三维升降转台的定位精度并且在失准的情况下，能够实现远程校准，以确保三维升降转台长期高精度稳定运行。
Subjects: Geosciences >> Other Disciplines of Geosciences submitted time 2019-09-11 Cooperative journals: 《干旱区地理》
Abstract：随着城镇化的深入发展，收入差距造成的社会阶层分化在城市空间上的分异程度亟需从地理学视角进行检视。通过网络爬虫工具获取兰州市商品住房数据，运用Reardon空间分异方法,研究居住—社会阶层的地理分布特征及其空间分异程度。结果表明：居住—社会阶层的地理分布方面，城关区和七里河区呈现出由中心到外围依次为精英阶层、富裕阶层、中产阶层、低产阶层、贫困阶层的圈层式分布，但存在精英区“侵入”低档住宅圈的现象；安宁区和西固区呈现出以中产、低产阶层为主的混合分布模式。居住—社会阶层的空间分异方面，分异趋势较为显著，七里河区、安宁区和西固区的居住—社会阶层分异明显高于城关区；富裕阶层居住区更倾向于融合，低产阶层居住区则有分异趋势；居住—社会阶层的空间分异随研究尺度的降低变得更为显著。
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