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Research on Human-Vehicle-Road Friendliness Based on Improved SH-GH-ADD Control 被引量:1
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作者 Yangyang Bao Mingliang Yang +3 位作者 Haibo Huang Liyuan Liu Honglin Zhu Weiping Ding 《Sound & Vibration》 EI 2023年第1期45-68,共24页
The hub-driven virtual rail train is a novel urban transportation system that amalgamates the benefits of modern trams and buses.However,this system is plagued by issues such as decreased ride comfort and severe defor... The hub-driven virtual rail train is a novel urban transportation system that amalgamates the benefits of modern trams and buses.However,this system is plagued by issues such as decreased ride comfort and severe deformation of urban roads due to the increase in sprung mass and long-term rolling at the same position.To address these concerns and improve the human-vehicle-road friendliness of the virtual rail train,we propose an Improved Sky-Ground Hook and Acceleration-Driven Damper control(Improved SH-GH-ADD control)strategy for the semi-active suspension system.This control monitors the vibration acceleration signal of the unsprung mass in real-time and selects the mixed Sky-Hook and Acceleration-Driven Damper(SH-ADD)control or the mixed Ground-Hook and Acceleration-Driven Damper(GH-ADD)control based on the positive and negative values of the vibration acceleration of the unsprung mass.The Improved SH-GH-ADD control combines the advantages of SH-ADD control and GH-ADD control to achieve control of the sprung mass and unsprung mass in the full fre-quency band.Finally,through simulation and comparative analysis with traditional SH-ADD,GH-ADD,and mixed SH-GH control,we demonstrate the exceptional performance of the proposed algorithm. 展开更多
关键词 SH control GH control ADD control ride comfort road friendliness
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Timeliness evaluation of task-oriented networked space-based information system 被引量:2
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作者 Chen Chen 1,2,and Jie Chen 2,3 1.Department of Automation,Tsinghua University,Beijing 100084,P.R.China 2.School of Automation,Beijing Institute of Technology,Beijing 100081,P.R.China 3.Complex System Intelligent Control and Decision,Ministry of Education,Beijing 100081,P.R.China 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2011年第4期621-627,共7页
Task-oriented networked information system is an integrated information system which builds on multi-satellite networking to accomplish one or more tasks. In the background of emer- gency relief for applications, syst... Task-oriented networked information system is an integrated information system which builds on multi-satellite networking to accomplish one or more tasks. In the background of emer- gency relief for applications, system working flow and response process are analyzed, and a timeliness effectiveness evaluation index system is constructed at multi-task level. The effectiveness is a measurement of promptness of information return. In evalua- tion process, system performance and tasks are associated, then an evaluation model based on efficacy function is established, and different evaluation criteria are selected for different tasks. A distributed simulation system is constructed, and the execution of task is decomposed. The simulation platform provides a comprehensive data source for evaluation. The results are easy to compare with each other, which reflects system time efficiency in different satellites networks and provides actual systems with basis and reference for design and application. 展开更多
关键词 timeliness efficacy function space-based informationsystem simulation system.
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Friendliness to Animals and Verbal Aggressiveness to People: Using Prison Inmates Education Networks as an Illustration 被引量:1
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作者 Nikolaos Hasanagas Alexandra Bekiari Periklis Vasilos 《Social Networking》 2017年第3期224-238,共15页
Goal of this research is to detect possible relations between animal-related attitudes and verbal aggressiveness as well as types combining such parameters. The sample collected in 2015 contains two adult education cl... Goal of this research is to detect possible relations between animal-related attitudes and verbal aggressiveness as well as types combining such parameters. The sample collected in 2015 contains two adult education classes equivalent to secondary school level (class A = 23 inmates and B = 12 inmates, all male) at a correctional facility. Questionnaires were used. Network analysis software (Visone) and conventional statistics (SPSS) are used for calculating network variables (indegree, outdegree, katz, pageranketc) and implementing Spearman test and Principal Component Analysis. Inmates who have adopted an animal-friendly value system and are too coward to react against torture of animals, maintain a repressed emotion. If they do not intervene and provoke, then they are also not targeted by others. No reaction against torture is also connected with a deep-rooted aggressiveness. Concerning superficial aggressiveness, a profile, whose characterize is multiple verbal aggressiveness, can be attributed to repressed emotions. A type is torturing and indifferently restricts his aggressiveness, as he can satisfy his need of dominance by being aggressive towards animals. A type of inmate who loves animals and reacts against their torture, presents the most restricted and relatively smooth aggressiveness, as he discharges his repressed emotions to this reaction. Under condition of indifference, keeping pets is not evidence of loving but of a need of companionship. As for the deep-rooted aggressiveness (over-extroversion), it does not seem to be triggered by any repression. 展开更多
关键词 Animal friendliness And CRUELTY VERBAL AGGRESSIVENESS INMATES Classes Social Network Analysis
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A Study on The Timeliness of Credit Rating on Bond Defaults--Evidence from Chinese Bond Market 被引量:1
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作者 Yubo Li Xiaohan Xu 《经济管理学刊(中英文版)》 2020年第1期45-54,共10页
With the increase of China’s bond issuance and slowdown of the economic growth,the potential credit risks such as bond default in the bond market are gradually emerging.The frequent occurrence of bond defaults and th... With the increase of China’s bond issuance and slowdown of the economic growth,the potential credit risks such as bond default in the bond market are gradually emerging.The frequent occurrence of bond defaults and the problem of false credit ratings make bond investors and market participants more cautious about the credit ratings issued by rating agencies.Based on the default bonds from 2016 to 2019,this paper analyzes the adjustment of rating of defaulted bonds by rating agencies before default.It also compares the impact of both the regulatory events and the entrance of international agencies on timeless of credit ratings on default bonds.At the same time,the divergence of rating timeliness between different rating agencies is compared.The research shows that after the unified supervision of regulators and the punishment of Dagong Global Credit Rating Co.Ltd in 2018,the timeliness of rating agencies'downgrading of defaulted bonds has increased significantly;Compared with other rating agencies,the timeliness of rating agencies owned by international rating agencies are better. 展开更多
关键词 Bond Default Credit Rating timeliness
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Associated Factors to Immunization Timeliness and Completion in Preterm and Low Birth Weight Infants at Essos Hospital Center Yaounde
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作者 Marie Kouya Annie Carole Nga Motaze +3 位作者 Jeannette Epée Ngoue Arsène Brunelle Sandie Paul Olivier Koki Ndombo Anne Esther Njom Nlend 《Open Journal of Pediatrics》 2021年第1期9-18,共10页
<strong>Introduction</strong><span style="font-family:Verdana;"><strong>: </strong></span><span style="font-family:Verdana;">Vaccination is very often dela... <strong>Introduction</strong><span style="font-family:Verdana;"><strong>: </strong></span><span style="font-family:Verdana;">Vaccination is very often delayed in premature and low birth weight infants. However, timely vaccination is even more important in this population because of their increased susceptibility to infection.</span><span style="font-family:;" "=""> </span><b><span style="font-family:Verdana;">Objective</span></b><b><span style="font-family:Verdana;">:</span></b><span style="font-family:;" "=""> <span style="font-family:Verdana;">To assess immunization practice and factors associated with vaccine promptness</span><span style="font-family:Verdana;"> and completeness in former preterm and low-birth-weight infants.</span></span><span style="font-family:;" "=""> </span><b><span style="font-family:Verdana;">Methods</span></b><b><span style="font-family:Verdana;">: </span></b><span style="font-family:Verdana;">We conducted a retrospective analytical cross-sectional study (January 2017 to February 2019).</span><b><span style="font-family:Verdana;"> Main Measurement: </span></b><span style="font-family:Verdana;">Promptness and completeness at each contact, Statistical analysis was performed using R software version 3.6.2, logistic regression was used to estimate the Odds Ratio (OR) and their 95% Confidence Interval (CI).</span><span style="font-family:;" "=""> </span><b><span style="font-family:Verdana;">Results</span></b><b><span style="font-family:Verdana;">:</span></b><span style="font-family:Verdana;"> We recruited 310 children aged 12 to 36 months born before 37 weeks with low birth weight, 163 (52.6%) of whom were female. Two hundred and fifty-three had received the vaccines at the indicated age, with</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">promptness rate of 81.6%, and 97.7% had completed routine immunization at 9 months. The mean age at vaccination initiation was 6 days ±</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">11 and the mean weight at vaccination initiation was 2233</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">g ±</span><span style="font-family:;" "=""> </span><span style="font-family:;" "=""><span style="font-family:Verdana;">494. High </span><span style="font-family:Verdana;">prematurity and very low birth weight were associated with a high rate of</span><span style="font-family:Verdana;"> vaccine delay: 61.5% [OR: 15.56;(CI: 3.22</span></span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">-</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">118.52;p</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">=</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">0.002)] and 66.7% [OR: 19.19;(CI: 4.67</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">-</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">92.52;p</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;"><</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">0.001)] respectively. Distance > 5 km with EHC [OR: 3.48;(CI: 1.68</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">-</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">7.47;p</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">=</span><span style="font-family:;" "=""> </span><span style="font-family:;" "=""><span style="font-family:Verdana;">0.001)] was associated with poor vaccination. </span><span style="font-family:Verdana;">Women in common-law unions had the lowest vaccine readiness rate </span><span style="font-family:Verdana;">(60.6%), (OR: 3.36;CI: 1.006</span></span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">-</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">10.70;p</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">=</span><span style="font-family:;" "=""> </span><span style="font-family:;" "=""><span style="font-family:Verdana;">0.038). The frequency of occurrence of post </span><span style="font-family:Verdana;">immunization adverse events was 24.5%, with fever type in 94.7%.</span></span><span style="font-family:;" "=""> </span><b><span style="font-family:Verdana;">Conclusion</span></b><b><span style="font-family:Verdana;">:</span></b><span style="font-family:;" "=""><span style="font-family:Verdana;"> Almost all premature and/or low-birth-weight children hospitalized at Essos Hospital Center had completed routine immunization at 9 months, and the </span><span style="font-family:Verdana;">majority had received the vaccines in a timely manner. Similar</span></span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">study</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">is</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">needed in rural area.</span> 展开更多
关键词 PREMATURITY Low Birth Weight IMMUNIZATION timeliness COMPLETION
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Completeness and Timeliness of Hepatitis B Vaccination in Preschool Children: Determinants for Good and Timely Uptake in Libreville, Gabon
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作者 Steeve Minto’o Emery Itoudi Bignoumba +4 位作者 Fifi Loembe Angela Mekame Leatitia Abang Diane Zoua Simon Ategbo 《Open Journal of Pediatrics》 2022年第1期203-212,共10页
Background: Gabon is endemic for hepatitis B, but they have still not reached the WHO goal for Hepatitis B vaccination coverage. We aimed to determine the rate of completeness and timeliness of hepatitis B vaccination... Background: Gabon is endemic for hepatitis B, but they have still not reached the WHO goal for Hepatitis B vaccination coverage. We aimed to determine the rate of completeness and timeliness of hepatitis B vaccination among children under 15 years of age in Libreville. Methods: Cross-sectional study conducted over 9 months, including children randomly selected from vaccination centres, nurseries and kindergartens. We collected data on the child, socio-economic characteristics of the families, and dates of administration of hepatitis B vaccines. We determined the compliance of the vaccination dates according to the vaccination start pattern. Results: We included 453 children, of whom 236 were girls, for a sex ratio of 0.92. A total of 87% (95% CI [83.9% - 90.1%]) of children had started and completed their 3 doses of vaccine before the 12<sup>th</sup> month of age. 149 subjects had received their 3 doses on time according to the original vaccination schedule, i.e. 32.9% (95% CI [28.6% - 37.2%]). Factors significantly associated with completeness were vaccination in a public centre OR = 114 [47.2 - 347] p <sup>st</sup> dose OR = 3 [1.6 - 5.5] p < 0.001. Age at first dose was the predictor of timeliness aOR = 1.3 (95% CI [1.2 - 1.5] p 0.001). Conclusion: The respect for the vaccination deadlines is insufficient in our context, solutions exist to improve this situation. 展开更多
关键词 Hepatitis B VACCINATION timeliness COMPLETENESS Children GABON
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Case Analysis of Environmental Friendliness of Green Buildings
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作者 ZHANG Yu MA Li DONG Li 《Journal of Landscape Research》 2020年第5期9-12,共4页
During the process of construction and maintenance, buildings have had many negativeeffects on the environment, such as destruction of the ecological environment, consumption of naturalresources, air pollution and gen... During the process of construction and maintenance, buildings have had many negativeeffects on the environment, such as destruction of the ecological environment, consumption of naturalresources, air pollution and generation of large amounts of construction waste. The development of greenbuildings has greatly improved the negative impact of buildings on the environment. In the whole life cycleof construction and maintenance of buildings, the consumption of natural resources is reduced, and thedamage to the environment is reduced. In this article, the representative green buildings in Asia are analyzedfrom the aspects of regional humanity, land saving measures, energy-saving measures, behavior-guidedgreen design strategies, building materials, effective greening measures and smart city strategies, and theexcellent design strategies are summarized, in order to provide reference for future architectural practice. 展开更多
关键词 Environmental friendliness Green building Environmental resource Case study
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Research and Innovative Analysis on the Timeliness and Effectiveness of the University Thought Political Lesson Education Practice
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作者 Jinhua Yang Xiaojin Yang 《International Journal of Technology Management》 2015年第12期20-23,共4页
In this paper, we conduct research on the timeliness and effectiveness of university thought political lesson education practice. What person, how to cultivate people is developing the socialist education enterprise i... In this paper, we conduct research on the timeliness and effectiveness of university thought political lesson education practice. What person, how to cultivate people is developing the socialist education enterprise in our country must solve fundamental problem. College students is a national valuable human resources, are the hope of nation, the future of our motherland. To make university students grow up to be the cause of socialism with Chinese characteristics qualified builders and reliable successors, we not only need to vigorously improve their scientific and cultural quality, and actively improve their ideological and political quality. College students' ideological and the political education content system of the science building is refers to according to the requirements of college students' ideological and political education goal, to constitute elements of ideological and political education content should be reasonable configuration, make each other, permeate each other, in order to realize the content of organic integration and collaborative development. 展开更多
关键词 timeliness and Effectiveness Thought Political Lesson Education Practice.
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Effect of Corporate Governance Compositions on Financial Reporting Timeliness in Nigerian Deposit Money Banks
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作者 Okerekeoti Chinedu U.Ezejiofor Raymond A. 《Macro Management & Public Policies》 2022年第3期20-28,共9页
This study ascertained the effect of corporate governance compositions on timeliness of financial reporting in deposit money banks in Nigeria.Ex Post Facto research design was employed for this study.Purposive samplin... This study ascertained the effect of corporate governance compositions on timeliness of financial reporting in deposit money banks in Nigeria.Ex Post Facto research design was employed for this study.Purposive sampling was used to select eight(8)deposit money banks in Nigeria with international authorization.Data were extracted from annual reports and accounts of the sampled banks and analyzed with regression analysis.The results show that board size has a positive and significant effect on financial reporting timeliness deposit money banks in Nigeria,while audit committee independence has a positive but insignificant effect on financial reporting timeliness of deposit money banks in Nigeria.Therefore,on the basis of the findings and conclusions of the study,the study recommends among other things that the number of banks board of directors should play a vital role in how well it can oversee daily operations of the institution and monitor management. 展开更多
关键词 Financial reporting timeliness Board size Audit committee independence
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Perspective of Elderly on Age-Friendliness of Services Provided in Primary Healthcare Centers of Dubai Health Authority: Focus Groups Discussions
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作者 Tamer Mohamed Farid Amal Mohamad Saleh Abdulrahim Al Jaziri +5 位作者 Soha Abdelziz Abdelal Anood Jamal Alshaali Manal Mohammad Omran Taryam Nahed Abdul Khaleq Monsef Afaf Abdullatif Al Hashemi Hamidah Saleh Al Shaibany 《Advances in Aging Research》 2018年第6期132-144,共13页
Primary Health Care Services Sector (PHCSS) of Dubai Health Authority (DHA) provides many services dedicated to seniors. However, there have been no studies to date that consulted the seniors themselves regarding thes... Primary Health Care Services Sector (PHCSS) of Dubai Health Authority (DHA) provides many services dedicated to seniors. However, there have been no studies to date that consulted the seniors themselves regarding these services. Thus, this study was conducted to investigate the age-friendliness of outpatient clinic’s services provided in PHCSS from perspective of elderly service recipients. Methods: Three focus groups were designed. The focus groups included receivers of care (senior patients and caregivers for senior patients) and healthcare providers (physicians, nurses, administrators and medical record officers). The discussed topics in the focus groups were based on WHO’s recommended three domains of improvement for an age-friendly Primary Health Care (PHC): Information, education and training, community-based health care management systems, and the physical environment. 展开更多
关键词 Focus Group DUBAI ELDERLY Primary Healthcare Age-Friendly WHO
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Timeliness of the analgesic effect of superficial needling on shoulder-hand syndrome after stroke 被引量:9
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作者 汪军 崔晓 +6 位作者 裴建 倪欢欢 周翠侠 黄春水 黄美 瞿佩玉 董英 《World Journal of Acupuncture-Moxibustion》 CSCD 2015年第4期5-10,共6页
Objective To observe the correlation between analgesic effect and duration of analgesic effect of superficial needling for shoulder pain of shoulderhand syndrome(SHS) after stroke, so as to screen the best time peri... Objective To observe the correlation between analgesic effect and duration of analgesic effect of superficial needling for shoulder pain of shoulderhand syndrome(SHS) after stroke, so as to screen the best time period of analgesia. Methods A total of 120 patients with SHS after stroke(stage I) were recruited and superficial needling therapy was applied. Two obvious tenderness points on the affected shoulder of patients were found out. The site 80–100 mm down each tenderness point was selected for superficial needling. Bimanual needling technique was applied after inserting needles. The surrounding of tenderness points was pinched and grasped by left hand above the needling, and the technique of green dragon swaying tail was applied by right hand. The needles at each acupoint were manipulated for3 min and retained for 30 min. The analgesic effect was evaluated dynamically by visual analogue scale(VAS) in 120 patients before treatment, immediately after treatment, 30 min after treatment, 1 h after treatment and 24 h after treatment. The analgesic effects at different time were statistically analyzed by generalized estimating equation. Results The mean values of VAS were 7.483, 3.950, 4.767, 5.917 and 7.217, respectively, before treatment, immediately after treatment, 30 min after treatment, 1 h after treatment and 24 h after treatment. The difference of analgesic effect at different time was statistically significant(P〈0.01); the difference of analgesic effect of superficial needling in treatment of SHS after stroke was significant between immediately after treatment and 30 min after treatment(both P〈0.05), while there was no significant difference between 1 h after treatment and 24 h after treatment(both P〈0.05). Conclusion Analgesic effect of superficial needling for shoulder pain of SHS after stroke was different at different time points and decreased over time; analgesic effect was the most significant immediately after treatment and the optimal duration of analgesic effect was from immediately to 30 min after superficial needling therapy. 展开更多
关键词 shoulder-hand syndrome STROKE shoulder pain superficial needling VAS score acupuncture analgesia timeliness research
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集成化白云石悬浮煅烧引领镁产业变革 被引量:3
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作者 单智伟 王悦存 +2 位作者 王鹏飞 马英子 郑芮 《中国材料进展》 CAS CSCD 北大核心 2024年第1期46-53,共8页
白云石煅烧作为硅热法炼镁的第一步,不仅是主要的能耗和碳排放环节,其煅烧产物的质量更是直接影响原镁的产率与品质。目前主流的回转窑煅烧工艺存在热效率低、能耗高、污染大、单线产能低、产品质量不稳定等问题,整个煅烧工序亟待技术... 白云石煅烧作为硅热法炼镁的第一步,不仅是主要的能耗和碳排放环节,其煅烧产物的质量更是直接影响原镁的产率与品质。目前主流的回转窑煅烧工艺存在热效率低、能耗高、污染大、单线产能低、产品质量不稳定等问题,整个煅烧工序亟待技术革新。提出了利用悬浮态煅烧替代回转窑进行白云石煅烧,并对两种工艺进行了综合对比,悬浮煅烧呈现出显著的技术、环保及经济优势:理论上节能50%以上,CO_(2)减排超20%,生产成本较目前降低35%,而且可以有效避免“过烧”和“欠烧”,获得高质量、性能稳定性好的煅烧产物,为后续炼镁环节提供优质原料。还分析了用绿色、高效的集成化白云石悬浮煅烧技术替代目前的“分散式”煅烧的可行性及对整个镁产业可能产生的颠覆性影响。 展开更多
关键词 白云石 悬浮煅烧 集成化 绿色 低成本
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北京“新三代家庭”育儿模式下的儿童友好型城市规划策略 被引量:1
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作者 甘霖 邱红 加雨灵 《规划师》 北大核心 2024年第1期10-16,共7页
回溯儿童友好城市的理念起源,借鉴家庭社会学对于当代抚育结构的经典研究见解,认识到建设儿童友好城市不能仅关注儿童个体,而必须以家庭为完整单元,映射到由全龄人群组成的社会生态系统深部。通过面向北京育儿家庭进行大样本问卷调查,... 回溯儿童友好城市的理念起源,借鉴家庭社会学对于当代抚育结构的经典研究见解,认识到建设儿童友好城市不能仅关注儿童个体,而必须以家庭为完整单元,映射到由全龄人群组成的社会生态系统深部。通过面向北京育儿家庭进行大样本问卷调查,提炼当前北京育儿家庭成员之间亲职分配的主流模式,认识到由代际协作育儿纽带联结的“新三代家庭”已经构成了当前北京最典型的家庭育儿模式。这一认知有助于定位超大城市儿童友好政策输出的侧重领域,避免儿童友好城市创建走向千城一面。通过深入挖掘这一典型模式下“双职工中青年”“银发育儿族”“多孩家庭子女”等人群需求,提出6点促进儿童与家人共享城市服务的策略。 展开更多
关键词 儿童友好城市 家庭友好城市 新三代家庭 隔代抚育
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可再生能源电制氢合成氨系统的并/离网运行方式与经济性分析 被引量:9
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作者 林今 余志鹏 +1 位作者 张信真 李佳蓉 《中国电机工程学报》 EI CSCD 北大核心 2024年第1期117-126,I0010,共11页
可再生能源电制氢合成氨(renewablepowerto ammonia,Re Pt A)是风力发电、光伏发电等可再生能源的大规模消纳方式之一,也是化工行业实现低碳清洁发展的重要技术路线之一。利用风电光伏电解水制氢合成氨系统模型,分析电网调峰型系统、电... 可再生能源电制氢合成氨(renewablepowerto ammonia,Re Pt A)是风力发电、光伏发电等可再生能源的大规模消纳方式之一,也是化工行业实现低碳清洁发展的重要技术路线之一。利用风电光伏电解水制氢合成氨系统模型,分析电网调峰型系统、电网友好型系统、工艺离网型系统的绿氨成本,并对电化学储能设备规模、储氢设备规模、电解水制氢设备规模、电解水制氢设备效率等影响因素进行敏感性分析。基于3种绿氨系统的设备配置方案和运行方式评估不同类型系统所需的电网调峰电量,提出3种系统所适合的应用场景。研究结论是近期应该发展电网友好型RePtA系统,远期应该发展工艺离网RePtA系统。 展开更多
关键词 可再生能源电解水制氢合成氨 电网调峰型系统 电网友好型系统 工艺离网系统
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“双老化”住区环境对老年群体积极生活行为的影响研究 被引量:1
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作者 陈明玉 边兰春 《西部人居环境学刊》 CSCD 北大核心 2024年第1期61-67,共7页
老旧住区是我国城市老年人居住的主要场所,住房与老年人经历了共生长和共衰老的“双老化”过程,此类住区是老旧住区更新的重要类型。积极老龄化框架下的老年友好社区实践作为改善居家社区养老的方法越来越受到普遍关注,其旨在为老年人... 老旧住区是我国城市老年人居住的主要场所,住房与老年人经历了共生长和共衰老的“双老化”过程,此类住区是老旧住区更新的重要类型。积极老龄化框架下的老年友好社区实践作为改善居家社区养老的方法越来越受到普遍关注,其旨在为老年人塑造出满足安居(吃住看病和基本锻炼),乐居(个人兴趣的满足和开发)和家居(邻里共建和贡献参与)三个层次目标的宜居社区,但目前在此框架下开展的针对“双老化”住区更新的研究和实践仍存在不足。为此,本研究选取北京四个典型的“双老化”住区,采用活动路径记录法归纳老年群体从事积极生活行为的规律特征,并结合以老年人为主的针对多方利益主体的非结构式访谈进一步分析环境空间,经济等维度的要素影响其行为积极度以及阻碍制约住区可持续更新进程的深层次原因。最后,从城市—社区,社区—住区,住区—建筑三个空间尺度提出“双老化”住区的环境改造策略和政策建议。 展开更多
关键词 “双老化”住区 老年友好 活动行为 适老化改造
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含磷废水的处理及排放评价 被引量:1
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作者 王静 李平平 +4 位作者 王玥辉 修一凡 张秉乾 王书文 高洪涛 《大学化学》 CAS 2024年第5期52-62,共11页
对分析化学实验“分光光度法测定水和废水中总磷”进行改进:以绿色无毒的麦饭石为载体,制备ZnFe-LDHs(层状双金属氢氧化物)改性麦饭石吸附材料,运用FTIR、XRD、SEM、EDS-mapping等手段进行表征,探索出ZnFeLDHs改性麦饭石对磷的最优吸附... 对分析化学实验“分光光度法测定水和废水中总磷”进行改进:以绿色无毒的麦饭石为载体,制备ZnFe-LDHs(层状双金属氢氧化物)改性麦饭石吸附材料,运用FTIR、XRD、SEM、EDS-mapping等手段进行表征,探索出ZnFeLDHs改性麦饭石对磷的最优吸附处理条件,去除率大于98.4%。含磷废水经改性麦饭石吸附处理后,磷的浓度小于0.08 mg·L^(-1),符合磷一级排放标准。该改进实验内容丰富,综合性强,学生在践行“绿色化学”理念中,综合研究能力和团队协作能力得到培养提升,适合推广至本科生高年级教学。 展开更多
关键词 改性麦饭石 吸附 磷含量测定 环境友好 创新设计与改进
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全龄友好社区视角下老旧社区公共空间更新策略——以南昌市梨园西社区为例 被引量:2
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作者 李小云 张玉 陈长虹 《规划师》 北大核心 2024年第2期106-114,共9页
当前,老旧社区公共空间供需矛盾突出,基于全龄友好社区视角,从广场公园、街道、宅间等3个层面提出老旧社区公共空间全龄化更新策略,并以南昌市梨园西社区为例进行更新实践,通过环境品质提升,促进老旧社区公共空间代际互动与融合的实现,... 当前,老旧社区公共空间供需矛盾突出,基于全龄友好社区视角,从广场公园、街道、宅间等3个层面提出老旧社区公共空间全龄化更新策略,并以南昌市梨园西社区为例进行更新实践,通过环境品质提升,促进老旧社区公共空间代际互动与融合的实现,为类似社区公共空间更新提供参考。 展开更多
关键词 全龄友好社区 老旧社区 公共空间 更新策略
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环保橡胶填充油的研究与应用进展 被引量:2
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作者 胡正海 王宁 《石油炼制与化工》 CAS CSCD 北大核心 2024年第1期89-97,共9页
概述了橡胶填充油(简称橡胶油)的分类、发展现状及国内外环保橡胶油的生产工艺和研究进展。环保橡胶油主要有处理芳烃油、重质环烷基油、浅度溶剂抽提油、残余芳烃抽提油以及调合油5大类。以润滑油精制装置副产抽出油、催化裂化油浆、... 概述了橡胶填充油(简称橡胶油)的分类、发展现状及国内外环保橡胶油的生产工艺和研究进展。环保橡胶油主要有处理芳烃油、重质环烷基油、浅度溶剂抽提油、残余芳烃抽提油以及调合油5大类。以润滑油精制装置副产抽出油、催化裂化油浆、渣油等为原料,环保橡胶油的生产工艺主要有溶剂精制工艺、复合溶剂抽提工艺、加氢精制-溶剂抽提复合工艺、加氢精制工艺等,这些工艺通过选择性脱除原料中的多环芳烃、保留低环芳烃和烷基芳烃来生产环保橡胶油,国内目前存在产能低、产品芳碳率低等问题,影响了环保橡胶油在国内的大规模应用,也影响环保型橡胶轮胎质量的提高。在原有技术方案上开发新的环保橡胶油生产工艺,探索新的加工路线迫在眉睫。 展开更多
关键词 环保橡胶填充油 加氢精制 溶剂抽提 多环芳烃
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艺术照明在适老光环境设计中的应用研究 被引量:2
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作者 李敏敏 黄彦 《家具与室内装饰》 北大核心 2024年第2期45-51,共7页
随着我国进入老龄化社会,提升适老居住与生活环境品质成为一项重要社会课题。本文针对二十一世纪以来照明技术和前沿视觉科学的进展,探讨了光环境对老年人生物节律的影响,特别是心理、生理健康方面的变化。同时,本文还探讨了艺术照明与... 随着我国进入老龄化社会,提升适老居住与生活环境品质成为一项重要社会课题。本文针对二十一世纪以来照明技术和前沿视觉科学的进展,探讨了光环境对老年人生物节律的影响,特别是心理、生理健康方面的变化。同时,本文还探讨了艺术照明与传统照明设计的差异,强调利用光艺术改善空间的视觉表现和光环境氛围的同时,还可对老年人的感知和情绪调节等方面产生积极影响。本文聚焦艺术照明在实现适老光环境中的作用,探讨其设计方法、媒介形式及指标参数等对老年人心理、生理健康的影响,提出具有实践及社会意义的设计方法和建议。 展开更多
关键词 适老光环境 艺术照明 心理因素 生理健康
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3D打印环保混凝土的研究进展及发展趋势 被引量:1
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作者 肖力光 张育嘉 《应用化工》 CAS CSCD 北大核心 2024年第5期1175-1179,共5页
探讨了将各类固体废弃物作为骨料、胶凝材料和纤维掺入混凝土制成可再生、可循环利用的绿色环保建筑材料的研究现状及进展,并对其制成的3D打印环保混凝土的可打印性、流变特性、可挤出性、可建造性、力学各向异性及耐久性作出评估和论证。
关键词 3D打印技术 3D打印环保混凝土 固体废弃物 再生材料
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