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A Comparison of Pound's Poetic Ideas and Some Chinese Poetic Principles-Using the Translation of "The Jewel Stairs' Grievance" as a Case in Point
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作者 成婷 《海外英语》 2011年第9X期268-268,270,共2页
The prominent features of Li Bai's "The Jewel Stairs'Grievance" are precise diction;implicit meaning;an absent narrator;and a seamless unity of images and feelings.Pound's translation of it in Ca... The prominent features of Li Bai's "The Jewel Stairs'Grievance" are precise diction;implicit meaning;an absent narrator;and a seamless unity of images and feelings.Pound's translation of it in Cathay reveals some kind of connections between some Chinese poetic principals and Pound's individual poetics. 展开更多
关键词 POETIC PRINCIPALS POUND The Jewel stairs’Grievance
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Form Art and Function Analysis of Outdoor Stairs
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作者 MENG Lingshuai 《Journal of Landscape Research》 2021年第2期83-88,共6页
Stairs are an important structural component in the architectural space design.It not only serves as a link between landscapes,but also a highlight of the space.Interpretation of stairs can be carried out from the for... Stairs are an important structural component in the architectural space design.It not only serves as a link between landscapes,but also a highlight of the space.Interpretation of stairs can be carried out from the form and function of stairs.This paper mainly takes the outdoor stairs as the research object,which is a building component to solve the vertical traffic function of the building,and selects some stairs designs worldwide for the analysis.Focusing on architectural design,the study investigates the expression form of each component of the outdoor stairs,and explores the diversified designs of the stairs.The paper urges designers to pay close attention to the problems of stair design in essence,to deeply understand the forms and methods of stair expression,to expand the breadth of architectural design thinking,to pursue in-depth understanding of the inherent laws of building generation,and to improve the quality of architecture. 展开更多
关键词 Outdoor stairs Form art Form and structure
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Practical Use of Stairs to Assess Fitness, Prescribe and Perform Physical Activity Training
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作者 Jasem Ramadan Al Kandari Salman Mohammad +2 位作者 Ruqayyah Al-Hashem Girma Telahoun Mario Barac-Nieto 《Health》 CAS 2016年第13期1402-1410,共9页
Aim: Evaluating climbing stairs for prescription and implementation of physical activity regimes. Methods: Healthy females (F, n = 14), and males (M, n = 15) participated. By climbing 100 steps of stairs with 0.173 m ... Aim: Evaluating climbing stairs for prescription and implementation of physical activity regimes. Methods: Healthy females (F, n = 14), and males (M, n = 15) participated. By climbing 100 steps of stairs with 0.173 m height, Heart rate (HR) and oxygen uptake were measured throughout the floors;Blood pressure (BP) was measured at ground and the 5th floors only. Results: Energy increased from 2 to 7.6 was metabolic equivalents (METs = 3.5 ml O<sub>2</sub>/min.kg) at 17.3 m elevation in 2 min. at the 5th floor, and percent Heart Rate Reserve (%HRR) was 66.17% in F and 48.7% in M, proportional to their aerobic efforts. Average climbing efficiency was 15.8 ± 2.3% (n = 29). Aerobic capacity estimated dividing the highest work rate (17.3 Kg.m/2min.Kg × 0.00239 = 0.0207 Kcal/min.Kg), by fractional effort (F = 0.6617, M = 0.487) and fractional efficiency (0.158), at 5 Kcal/L O2 was 0.040 in F and 0.054 L O2/Kg.min in M. Minimum training intensity reached at the 3rd floor by F. In M the highest %HRR reached was 48.7% at the 5th floor, insufficient for training. Conclusions: Stairs used for submaximal evaluation of aerobic capacity and for target intensity prescription. Training, levels climbed, repetitions per day (if 5, 100 Kcal per day, ascending) and number of days/week are adjusted. Full regime requires up to 7.6 METs, a total of 532 and 140 MET.min/week ascending and descending, respectively. Intensities >7.6 MET, climbing rate should be >8.65 m/min. Limiting ascent to 1 (3.5 METs) or 2 (5.5 METs) floors or only descents (2 - 3 METs) may be used for unfit subjects. This method is useful for those with no access to sophisticated facilities. 展开更多
关键词 Stair Climbing DESCENT Heart Rate Reserve Aerobic Effort Oxygen Cost Work Output Efficiency Aerobic Capacity Exercise Prescription TRAINING
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Oxygen uptake response to switching stairs exercise by non-parametric modeling
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作者 Hairong Yu Chenyu Zhang +2 位作者 Kai Cao Hamzah M.Alqudah Steven Weidong Su 《Control Theory and Technology》 EI CSCD 2024年第2期315-325,共11页
Oxygen uptake plays a crucial role in the evaluation of endurance performance during exercise and is extensively utilized for metabolic assessment. This study records the oxygen uptake during the exercise phase (i.e.,... Oxygen uptake plays a crucial role in the evaluation of endurance performance during exercise and is extensively utilized for metabolic assessment. This study records the oxygen uptake during the exercise phase (i.e., ascending or descending) of the stair exercise, utilizing an experimental dataset that includes ten participants and covers various exercise periods. Based on the designed experiment protocol, a non-parametric modeling method with kernel-based regularization is generally applied to estimate the oxygen uptake changes during the switching stairs exercise, which closely resembles daily life activities. The modeling results indicate the effectiveness of the non-parametric modeling approach when compared to fixed-order models in terms of accuracy, stability, and compatibility. The influence of exercise duration on estimated fitness reveals that the model of the phase-oxygen uptake system is not time-invariant related to respiratory metabolism regulation and muscle fatigue. Consequently, it allows us to study the humans’ conversion mechanism at different metabolic rates and facilitates the standardization and development of exercise prescriptions. 展开更多
关键词 Non-parametric modeling Interval stair training exercise Kernel method.Cardiorespiratory response Oxygen uptake
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循环STAiR18在多发性骨髓瘤患者微小残留监测中的临床应用研究
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作者 罗澜 罗吉 +2 位作者 吴应淼 姜涛 钟凌 《实用医院临床杂志》 2024年第6期59-65,共7页
目的探讨STAiR18作为无创监测新型标志物动态监测多发性骨髓瘤(MM)治疗缓解后体内微小残留病(MRD)的可能性和早诊复发的临床价值。方法收集初诊和治疗后随访患者的骨髓、血浆。采用ELISA测定血浆IL-6水平;提取骨髓浆细胞RNA和循环血浆R... 目的探讨STAiR18作为无创监测新型标志物动态监测多发性骨髓瘤(MM)治疗缓解后体内微小残留病(MRD)的可能性和早诊复发的临床价值。方法收集初诊和治疗后随访患者的骨髓、血浆。采用ELISA测定血浆IL-6水平;提取骨髓浆细胞RNA和循环血浆RNA,通过qRT-PCR分析STAiR18表达水平。化疗后定期随访评估无进展生存率(PFS)和生存期,监测STAiR18表达量。结果共收集46例MM患者,其骨髓浆细胞的STAiR18表达量是对照组的(4.97±1.24)倍(t=2.223,P=0.022),R-ISS分期越差,STAiR18表达量越高(Ⅰ、Ⅱ、Ⅲ期的相对表达量分别为2.49±1.43、5.47±1.14、6.93±1.23)。各期中,STAiR18表达量高于组内均值的患者的PFS均较低于组内均值患者的PFS差(χ^(2)=5.49,P=0.019;χ^(2)=15.96,P<0.05;χ^(2)=0.021,P=0.88)。初诊时,循环STAiR18表达量与骨髓浆细胞STAiR18的表达量显著相关(r=0.99,P<0.0001),也与相同时间点血浆IL-6浓度呈正相关(r=0.88,P<0.0001)。化疗后,11例患者达完全缓解,其中7例患者微小残留监测持续阴性,其STAiR18持续处于较低水平。而另4例患者循环STAiR18表达量逐渐增高,且在多参数流式细胞术MRD报阳前发生显著升高,平均提前4~8周。结论循环STAiR18有望成为MM患者MRD监测的新型无创标志物。 展开更多
关键词 LncRNA STAiR18 多发性骨髓瘤 微小残留监测 无创
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基于Stair−YOLOv7−tiny的煤矿井下输送带异物检测
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作者 梅晓虎 吕小强 雷萌 《工矿自动化》 CSCD 北大核心 2024年第8期99-104,111,共7页
针对现有煤矿井下输送带异物检测方法应对复杂场景适应性差、无法满足实时性和轻量化要求、处理尺寸差异较大异物时表现不佳的问题,基于轻量化YOLOv7−tiny模型进行改进,提出了一种Stair−YOLOv7−tiny模型,并将其用于煤矿井下输送带异物... 针对现有煤矿井下输送带异物检测方法应对复杂场景适应性差、无法满足实时性和轻量化要求、处理尺寸差异较大异物时表现不佳的问题,基于轻量化YOLOv7−tiny模型进行改进,提出了一种Stair−YOLOv7−tiny模型,并将其用于煤矿井下输送带异物检测。该模型在高效层聚合网络(ELAN)模块中添加特征拼接单元,形成阶梯ELAN(Stair−ELAN)模块,将不同层级的低维特征与高维特征进行融合,加强了特征层级间的直接联系,提升了信息捕获能力,增强了模型对不同尺度目标和复杂场景的适应性;针对检测头引入阶梯特征融合(Stair−fusion),形成阶梯检测头(Stair−head)模块,通过逐层融合不同分辨率的检测头特征,增强了中低分辨率检测头的特征表达能力,实现了特征信息的互补。实验结果表明:Stair−YOLOv7−tiny模型在输送带异物开源数据集CUMT−BelT上的检测效果优于CBAM−YOLOv5,YOLOv7−tiny及其轻量化模型,准确率、平均精度均值、召回率和精确率分别达98.5%,81.0%,82.2%和88.4%,检测速度为192.3帧/s;在某矿井下输送带监控视频分析中,Stair−YOLOv7−tiny模型未出现漏检或误检,实现了输送带异物的准确检测。 展开更多
关键词 输送带异物检测 YOLOv7−tiny 多尺度目标检测 Stair−fusion 高效层聚合网络 检测头
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The Whole Theory of This Universe—A Step Forward to Einstein. Part-4: “Concept Map of Rotating Universe”
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作者 Rehana Kousar 《Journal of Applied Mathematics and Physics》 2024年第5期1699-1724,共26页
The article collectively proposes a revolutionary perspective on the universe, intertwining concepts of time, spatial positioning, and cosmic dynamics. We introduce the idea of a rotating universe centered around Mega... The article collectively proposes a revolutionary perspective on the universe, intertwining concepts of time, spatial positioning, and cosmic dynamics. We introduce the idea of a rotating universe centered around Mega Central Energy Pools (MCEPs), where time varies relative to the distance from the universe’s center, potentially enabling time travel. This model challenges conventional notions of time and cosmology, suggesting that black holes and white holes act as cosmic recycling factories. Additionally, this model unveils a novel theory of dark matter, positing photons as its constituents and highlighting their role in energy transfer across the cosmos. Furthermore, the investigation into Venus’s unique day-length-to-year-length ratio unveils a microscopic mechanism involving swirling energy droplets, charged particles, and field interactions, offering insights into planetary dynamics on both micro and macro scales. 展开更多
关键词 Rotating Universe Time Stair Time Acceleration Time Dilations Accelerating Galaxies
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Good Health Advice—Take the Stairs
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作者 张式常 《当代外语研究》 2000年第10期29-30,共2页
多年来,专家们一直鼓励美国人进行体育锻炼,只要可能,就爬楼梯而不乘电梯并步行上班。最近的一项研究支持这个忠告,它表明,经常从事强度大的活动会对健康大有益处。
关键词 爬楼梯 胆固醇 测试项目 Good Health Advice Take the stairs
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Evacuation strategies for vertical ship lift during initial fire: Integrated application of stairs and elevators 被引量:1
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作者 Shu CHEN Menghan SHANG Jianping WANG 《Frontiers of Engineering Management》 2021年第1期135-147,共13页
Vertical ship lifts(VSLs)are widely used in navigation facilities worldwide because of their efficiency and low cost.Although several researchers have investigated fire evacuation strategies for reducing potential saf... Vertical ship lifts(VSLs)are widely used in navigation facilities worldwide because of their efficiency and low cost.Although several researchers have investigated fire evacuation strategies for reducing potential safety hazards in VSLs,an effective and integrated application of stairs and elevators when a fire occurs in a VSL is necessary.Several evacuation routes were analyzed according to VSL structure and evacuation times in this study.Objective function corresponding to the minimum vertical evacuation time and related simulation model was subsequently developed to obtain a cooperative evacuation plan considering different numbers of evacuees.The Three Gorges ship lift was used as an example,and simulation results indicate that number of evacuees and exit selection are the main influencing factors of the total evacuation time in the stair-and elevator-coordinated evacuation mode.Furthermore,the distance between people trapped in ship reception chamber and evacuation exits affects evacuees?choice of exits.The proposed model can provide a theoretical reference for evacuation research during initial fire events in VSLs. 展开更多
关键词 vertical ship lift initial fire fire evacuation numerical simulation STAIR ELEVATOR
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Stair climbing,genetic predisposition,and the risk of incident type 2 diabetes:A large population-based prospective cohort study
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作者 Yuanjue Wu Mengyun Luo +1 位作者 Xiao Tan Liangkai Chen 《Journal of Sport and Health Science》 SCIE CSCD 2023年第2期158-166,共9页
Background:Cross-sectional evidence and small-scale trials suggest positive effects of stair climbing on cardiometabolic disease and glucose regulation.However,few studies have examined the long-term association betwe... Background:Cross-sectional evidence and small-scale trials suggest positive effects of stair climbing on cardiometabolic disease and glucose regulation.However,few studies have examined the long-term association between stair climbing and the incidence of type 2 diabetes(T2D).We aimed to prospectively evaluate the association of stair climbing with T2D and assess modifications by genetic predisposition to T2D.Methods:We included 451,699 adults(mean age=56.3±8.1 years,mean±SD;55.2%females)without T2D at baseline in the UK Biobank and followed up to March 31,2021.Stair climbing information was collected through the touchscreen questionnaire.Genetic risk score for T2D consisted of 424 single nucleotide polymorphisms.Results:During a median follow up of 12.1 years,14,896 T2D cases were documented.Compared with participants who reported no stair climbing,those who climbed stairs regularly had a lower risk of incident T2D(10-50 steps/day:hazard ratio(HR)=0.95,95%confidence interval(95%CI):0.89-1.00;60-100 steps/day:HR=0.92,95%CI:0.87-0.98;110-150 steps/day:HR=0.86,95%CI:0.80-0.91;>150 steps/day:HR=0.93,95%CI:0.87-0.99,p for trend=0.0007).We observed a significant interaction between stair climbing and genetic risk score on the subsequent T2D risk(p for interaction=0.0004),where the risk of T2D showed a downward trend in subjects with low genetic risk and those who reported stair climbing activity of 110-150 steps/day appeared to have the lowest overall T2D risk among those with intermediate to high genetic risk.Conclusion:A higher number of stairs climbed at home was associated with lower T2D incidence risk,especially among individuals with a low genetic predisposition to T2D.These findings highlight that stair climbing,as incidental physical activity,offers a simple and low-cost complement to public health interventions for T2D prevention. 展开更多
关键词 COHORT Genetic risk score Stair climbing Type 2 diabetes UK Biobank
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Discrete Differential Geometry of Triangles and Escher-Style Trick Art 被引量:2
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作者 Naoto Morikawa 《Open Journal of Discrete Mathematics》 2016年第3期161-166,共7页
This paper shows the usefulness of discrete differential geometry in global analysis. Using the discrete differential geometry of triangles, we could consider the global structure of closed trajectories (of triangles)... This paper shows the usefulness of discrete differential geometry in global analysis. Using the discrete differential geometry of triangles, we could consider the global structure of closed trajectories (of triangles) on a triangular mesh consisting of congruent isosceles triangles. As an example, we perform global analysis of an Escher-style trick art, i.e., a simpler version of “Ascending and Descending”. After defining the local structure on the trick art, we analyze its global structure and attribute its paradox to a singular point (i.e., a singular triangle) at the center. Then, the endless “Penrose stairs” is described as a closed trajectory around the isolated singular point. The approach fits well with graphical projection and gives a simple and intuitive example of the interaction between global and local structures. We could deal with higher dimensional objects as well by considering n-simplices (n > 2) instead of triangles. 展开更多
关键词 Discrete Differential Geometry Triangle Mesh Global Analysis Singular Point Penrose stairs
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Helicoidal shell response to earthquake loads
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作者 Mohammed S. Al-Ansari 《Journal of Civil Engineering and Architecture》 2009年第3期16-22,共7页
This paper studies and analyzes the response of helical stairs as helicoidal shells in earthquake zones. The response of helical stairs under gravity loads was analyzed by both the membrane theory and finite element m... This paper studies and analyzes the response of helical stairs as helicoidal shells in earthquake zones. The response of helical stairs under gravity loads was analyzed by both the membrane theory and finite element methods. The non-linear response of helical stairs, when subjected to UBC (Uniform Building Code) dynamic and static equivalent earthquake loads, were obtained using finite element models. These responses were compiled and analyzed in order to draw recommendations for the preliminary design of helical stairs in earthquake zones. The analysis of the results obtained showed that helical stairs are stiffer and lighter than regular ones. 展开更多
关键词 helicoidal shells helical stairs earthquake response finite element earthquake loads
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User Preference Survey on Staircase Rotation
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作者 Ping An Biao Wang 《Journal of Civil Engineering and Architecture》 2015年第7期836-844,共9页
Staircase is an important means of vertical transportation. Staircase design exerts a great influence on the aesthetics, transportation efficiency, user comfort and experience level. In this paper, a survey on the sta... Staircase is an important means of vertical transportation. Staircase design exerts a great influence on the aesthetics, transportation efficiency, user comfort and experience level. In this paper, a survey on the staircase rotation preference was conducted, based on the environment behavior studies. Different user frequencies of a pair of scissors stairs in the 2nd teaching building of North China University of Technology were analyzed. The psychological effect was evaluated and quantified, and the user preference on the two staircase rotations was then withdrawn. The survey found that the type of staircase with clockwise upstairs was much more preferred (78%) than the other staircase rotation anti-clock upstairs. Considering different genders, the female shows a 66% higher preference inclination of this type of staircase rotation than the male. To improve the transportation efficiency of the staircase in case of fire, the result of this paper can be very constructive for the evacuation staircase rotation choice for the high-rise buildings. 展开更多
关键词 Evacuation stairs staircase rotation user preference environmental behavior.
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瑞昌石化办公北楼,洛阳,河南,中国
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作者 王方戟 《世界建筑》 2016年第5期116-117,共2页
建筑以无象征性含义的悬浮之盒的形态介入城郊工业园区空旷的环境中。建筑立面上各个语言的尺度相差悬殊。经过特定的组合,它们将人们在形态上对建筑"楼层"的习惯性阅读瓦解了,取而代之的是人们对建筑形态更加自由的阅读。同时,立面... 建筑以无象征性含义的悬浮之盒的形态介入城郊工业园区空旷的环境中。建筑立面上各个语言的尺度相差悬殊。经过特定的组合,它们将人们在形态上对建筑"楼层"的习惯性阅读瓦解了,取而代之的是人们对建筑形态更加自由的阅读。同时,立面上各个语言也与具有不同使用含义的内部空间相对应。主楼梯不仅是交通空间,也是一个曲折、连贯的中庭空间,它将建筑的各个楼层在感知上连接在一起。 展开更多
关键词 建筑形态 中庭空间 交通空间 interior STAIR floating Floor FREEDOM BREAKING 监控室
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Chemical Composition, Characterization and Factors Affecting Household Dust (<20 µm) in Greater Cairo, Egypt
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作者 Salwa K. Hassan Ahmed A. El-Abssawy Mamdouh I. Khoder 《Open Journal of Air Pollution》 2015年第4期184-197,共14页
Adverse health and environmental effects of household dust are derived from their chemical composition and properties. In this study, household, stairs and entryway dust (<20 μm) samples from homes located in urba... Adverse health and environmental effects of household dust are derived from their chemical composition and properties. In this study, household, stairs and entryway dust (<20 μm) samples from homes located in urban, residential and residential near to industrial area in Greater Cairo during summer 2013 were collected to study their chemical composition, characterization and factors affecting them. Results indicate that the levels of measured anions and cations were higher in the household compared to stairs and entryway dust. The highest concentration of ?, , Cl-?,?, Na+, K+, Ca2+ and Mg2+ in the household and entryway dust was found in urban area. was abundant in household, entryway and stairs dust followed by Cl- and . Its average concentrations were 21.38, 14.57 and 15.83 mg/g, respectively. The household/entryway (I/O) concentration ratios of measured ion components indicate that these species might derive from indoor sources, although outdoor sources could be present as well. pH values of household, stairs and entryway dust ranged from 6.43 to 8.53, indicating that these dusts brought a large amount of crustal species, and might alleviate the tendency of acidification. The relationships between the concentrations of acidic components ( and ) and basic components (, Ca2+ and Mg2+) in household, stairs and entryway dust confirm that the acidity of dust is neutralized. Ca2+ and in household and stairs dust and Ca2+ and Mg2+ in entryway dust are the most dominant neutralization substances. 展开更多
关键词 Household stairs and Entryway DUST Chemical Composition and CHARACTERIZATION GREATER CAIRO EGYPT
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上楼
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作者 呼振璞 付晓明(画) 《中学英语园地(八年级)》 2009年第4期62-64,共3页
1.Andy,Tom and Peter came to New York for a holiday.They stayed at a very large hotel.
关键词 中学 英语 课外阅读 幽默 《Go Up stairs
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基于Stair模式的大学生创新创业教育实践探索 被引量:3
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作者 周燕 黎鸿雁 +3 位作者 贾柠宁 李静 张佳景 马波 《高教学刊》 2019年第3期43-45,共3页
萨提亚模式作为一种积极向上、自信统一、内外和谐的心理学模式,非常适合融入大学生创新创教育及训练指导,帮助大学生迈向身心统一、充满信心地创新实践锻炼,激发学生的创新创业热情,促进了大学生创新创业意识、创新创业能力的提高,帮... 萨提亚模式作为一种积极向上、自信统一、内外和谐的心理学模式,非常适合融入大学生创新创教育及训练指导,帮助大学生迈向身心统一、充满信心地创新实践锻炼,激发学生的创新创业热情,促进了大学生创新创业意识、创新创业能力的提高,帮助学生在创新创业实践活动中寻找到属于自己内心的力量、勇气、喜悦,建立更和谐的团队关系,为大学生职业规划及未来职业发展奠定了基础。 展开更多
关键词 萨提亚(Stair)模式 创新创业教育 创新实践 职业发展
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基于萨提亚模式的思政课大学生职业素质培养——以“思想道德修养与法律基础”为例 被引量:6
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作者 周燕 黎鸿雁 +1 位作者 贾柠宁 李亚青 《河北农业大学学报(社会科学版)》 2019年第2期76-80,共5页
育好时代新人是时代赋予思政课的任务。高校思政课要努力把握青年学子成长的自然律动,巧妙地将思想政治教育内容融入与大学生职业素质教育有机融合,帮助学生完善自我、勇担责任、和谐一致,健康成长。萨提亚(Stair)模式是一种以成长为取... 育好时代新人是时代赋予思政课的任务。高校思政课要努力把握青年学子成长的自然律动,巧妙地将思想政治教育内容融入与大学生职业素质教育有机融合,帮助学生完善自我、勇担责任、和谐一致,健康成长。萨提亚(Stair)模式是一种以成长为取向的积极心理学模式,注重心灵的联结和自我的成长力量的提升。实践证明,将思想政治教育与职业生涯教育有机结合,基于萨提亚(Stair)模式的应用,有助于拓宽职业生涯规划教育渠道,增强思政课职业素质教育的有效性。 展开更多
关键词 Stair模式 思想政治教育 职业素质教育 创新育人
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Stair evacuation simulation based on cellular automata considering evacuees' walk preferences 被引量:5
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作者 丁宁 张辉 +1 位作者 陈涛 Peter B.Luh 《Chinese Physics B》 SCIE EI CAS CSCD 2015年第6期687-693,共7页
As a physical model, the cellular automata (CA) model is widely used in many areas, such as stair evacuation. However, existing CA models do not consider evacuees' walk preferences nor psychological status, and the... As a physical model, the cellular automata (CA) model is widely used in many areas, such as stair evacuation. However, existing CA models do not consider evacuees' walk preferences nor psychological status, and the structure of the basic model is unapplicable for the stair structure. This paper is to improve the stair evacuation simulation by addressing these issues, and a new cellular automata model is established. Several evacuees' walk preference and how evacuee's psychology influences their behaviors are introduced into this model. Evacuees' speeds will be influenced by these features. To validate this simulation, two fire drills held in two high-rise buildings are video-recorded. It is found that the simulation results are similar to the fire drill results. The structure of this model is simple, and it is easy to further develop and utilize in different buildings with various kinds of occupants. 展开更多
关键词 building evacuation stair simulation cellular automata walk preferences
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Analyzing floor-stair merging flow based on experiments and simulation 被引量:2
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作者 Yu Zhu Tao Chen +1 位作者 Ning Ding Wei-Cheng Fan 《Chinese Physics B》 SCIE EI CAS CSCD 2020年第1期168-174,共7页
In most situations,staircase is the only egress to evacuate from high-rise buildings.The merging flow on the stair landing has a great influence on the evacuation efficiency.In this paper,we develop an improved cellul... In most situations,staircase is the only egress to evacuate from high-rise buildings.The merging flow on the stair landing has a great influence on the evacuation efficiency.In this paper,we develop an improved cellular automaton model to describe the merging behavior,and the model is validated by a series of real experiments.It is found that the flow rate of simulation results is similar to the drills,which means that the improved model is reasonable and can be used to describe the merging behavior on stairs.Furthermore,some scenarios with different door locations and building floor numbers are simulated by the model.The results show that(i)the best door location is next to the upward staircase;(ii)the total evacuation time and the building floor number are linearly related to each other;(iii)the pedestrians on upper floors have a negative influence on the evacuation flow rate. 展开更多
关键词 evacuation dynamics merging flow stair simulation cellular automaton high-rise buildings
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