280 research outputs found
Optimized design and energy consumption simulation of window-wall ratio in Yanqui Library, Jimei University
No full textThe size of the window-to-wall ratio is a key factor affecting the natural lighting, ventilation and energy consumption of a building. Taking the Yanqui Library of Jimei University as the object and combined with different shading conditions, the range of window-wall ratios that simultaneously meet the requirements of natural lighting and energy saving is derived by using Revit, Ecotect and PKPM software simulations around lighting, energy consumption and natural ventilation. The main conclusions are as follows:(1) With the use of external shading, 0.53 is the maximum window-to-wall ratio for west-facing rooms to meet lighting and energy-saving requirements. (2) The window ratio in the west room is not greater than 0.38, and the north-south room is not greater than 0.55, and the average indoor wind speed in the transitional season is not greater than 0.5m/s
Xue qian er tong jia zhuang you xi yu xin li li lun guan xi de yan jiu
No full text"Theory of mind" refers to the competence to understand the mental states of oneself and others, such as perception, emotion, intention, belief, etc. (Baron-Cohen, 2001). Existing literature suggests that the abilities to understand mental states are associated with pretend play behaviors in children. However, the theory theory (Perner, 1991) and the simulation theory (Harris, 2000) have provided different interpretations about their relations because the two theories have different views concerning the cognitive mechanism underlying the development of theory of mind.Results from the three studies were not in support of either theory fully and consistently. Specifically, the result of Study 1 showed that the children understood the false belief of others before they understood the false belief of oneself's. This result was inconsistent with both theories. Results of Study 2 indicated that children' understanding of false belief was associated only with social pretend play, but not with oneself's pretend play. However, considering the concept of multiple models of representations could be used to explain the relation between pretend play and false belief understanding abilities and has no theory inclination, it could not give evidence to the comparison between the two theories through these ways and results of the relation examination in this study. The results of the intervention study demonstrated that only the training method that involved the discussion of multiple identities of oneself produced significant and positive effect on children's false belief understanding. In brief, the theory theory was considered to obtain stronger support from the present research.The present research compared the two theories by investigating the relations between children's pretend play and their false belief understanding abilities. Three studies were conducted, that involved preschool children from 3-years-old to 5-years-old from a remote area in the eastern part of China, to address three questions on that the two theories pose different predictions. The first question was concerned with whether or not there IS a developmental sequence between understanding the mental states of oneself and understanding others' (Study 1). The second question was about whether or not the abilities to understand mental states are associated with oneself's pretend playas well as with social pretend play (Study 2). The third question was related to whether or not two types of social pretend play interventions that were designed based on the two theories respectively would significantly affect children's competence to understand false belief by comparing the two intervention groups with a control group (Study 3). The intervention method towards the theory theory involved an explicit discussion of multiple identities of oneself whereas the intervention reflecting the simulation theory did not have the discussion.董及美.Adviser: Yu-Jing Ni.Source: Dissertation Abstracts International, Volume: 73-04, Section: A, page: .Thesis (Ph.D.)--Chinese University of Hong Kong, 2011.Includes bibliographical references (p. 187-194).Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [201-] System requirements: Adobe Acrobat Reader. Available via World Wide Web.Abstracts in Chinese and English.Dong Jimei
Large-area multilayer molybdenum disulfide for 2D memristors
No full textResistive random access memories (RRAMs) using two-dimensional (2D) materials have delivered comparable switching performance with CMOS devices. However, devices risk short problems because of their ultra-thin body, thus yielding poorly. In this study, we realize high-yield RRAMs thanks to the synthesis of uniform large-area multilayer molybdenum disulfide by thermally decomposing ammonium tetrathiomolybdate. This top-down method has advantages over mainstream chemical vapor deposition, in which layer-by-layer epitaxy is forbidden when surface energy elevates. The resulting film surface roughness is down to 93.8 pm, and its lateral size can be scaled up to wafer scale. A yield value higher than 90% was estimated by testing 8 × 8 RRAM arrays, reaching nearly 100% in isolated devices. These devices show low operation voltages (∼1V) with low cycle-to-cycle and device-to-device variations (∼12%). We also observed stable resistive switching of multilayer films prepared at 400 °C. The large-area synthesis of uniform multilayer films makes it more feasible to use 2D semiconductors in practical RRAM technology for wafer-scale integration.This work was supported by the National Natural Science Foundation of China (62004095, 62204096, and 62275102), the Fundamental Research Funds for the Central Universities (20720220090), the Natural Science Foundation of Fujian Province of China (2021J05176, 2022J05015, 2020J01704, 2022J01822, and 2019H0022), the Fujian Provincial Department of Education of China (JAT200291), the Science and Technology Major Project of Fujian Province (2022HZ022019), the Science Foundation of Jimei University, China (ZQ2020014), the Science Foundation for Distinguished Young Scholars of Fujian Province (2020J06025), the Youth Talent Support Program of Jimei University (ZR2019002), the Innovation Foundation for Young Scientists of Xiamen (2020FCX012501010105), the Xiamen Marine and Fishery Development Special Foundation (20CZB014HJ03), and the Youth Talent Support Program of Fujian Province (Eyas Plan of Fujian Province, 2021)
Response of the desert riparian vegetation to water recharges in the lower reaches of Tarim River, Xinjiang, China
No full textIn this paper, to examine if vegetation responses actively to water recharges, we analyzed the charm of desert riparian vegetation pre- and post- water recharge and discussed its causes. The results showed that vegetation responded positively to water recharges and vegetation nearer the river channel responded more substantially to watering than that further away. The changes of vegetation were related to the spatial and temporal changes of groundwater depth which elevated after water recharges. For restoration of vegetation in large ranges in study region, continuation of water recharges is necessary
Role of water management in ecological restoration and economic development in arid regions Taken the lower reaches of Tarim River as an example
No full textWater resource is a crucial factor in social and economic development and ecological protection in arid and semi-arid areas. The unbridled development and use of water resources in the lower reaches of the Tarim River over the last 50 years have led to a serious ecological degradation: (1) groundwater level drop. (2) water quality deterioration. (3) land desertification and frequent natural disasters occurrence. Meanwhile, the environmental degradation caused some negative effects on local agricultural development: (1) soil salinization declines agricultural areas. (2) deterioration water quality declines agricultural production. (3) natural disasters cause high economic loss. However, after watering, the degraded ecology is becoming obviously reversible. The natural vegetation has a favorable response in certain range of the water channel. The areas arable land increased greatly; furthermore, the total value of agricultural production is 1293.13x104 Dollars, increased by 128% after adoption of new management of water. Livestock population has experienced a growth trend as a result of watering. The results indicate that favorable eco-environment has an obvious positive function in the local economic development. Based on those facts, this paper analyzed the relationship between eco-environment and economic development. Some issues are pointed out in water resource management. Scientific water management countermeasures are discussed in Tarim River
Management by Walking Around (MBWA), Communication, and Productivity of Selected Employees in Chongqing, China
No full textThis study examined the Management by Walking Around (MBWA), communication, and productivity of selected employees in Chongqing, China. According to Dyer (2023), MBWA also encourages managers to broaden their inter-organizational connections and learn new leadership abilities, such as active listening, to assist in creating and sustain excellent employee-employer relationships. Effective communication stimulates the decision-making process and encourages effective communication among employees. The researchers aimed to assess the status of management by walking around, level of communication, and level of productivity of selected employees. It also examined whether there is a significant relationship exists between the status of management by walking around and the level of communication, the status of management by walking around and the level of productivity and the level of communication and the level of productivity of selected employees. The study utilized descriptive-correlational research method which determined the Management by Walking Around (MBWA), communication, and productivity among selected employees in Chongqing, China.The findings of the study revealed that the status of management by walking around was satisfactory and the level of communication of selected employees was very high. The level of productivity of selected employees was high. A significant relationship was noted between the status of management by walking around and the level of communication, with a Pearson r value of 0.429 indicating a moderate correlation. A p value of 0.000, lower than the 0.01 level of significance, indicated a significant relationship between the level of communication and the level of productivity. Management by Walking Around (MBWA) is a workplace practice where managers frequently observe and interact with employees. This approach promotes clear and effective communication, reducing extra work and missed cooperation. Employees complete tasks efficiently within designated time frames and seek ways to improve their skills. The practice is associated with higher productivity among employees in Chongqing, China, with higher communication levels leading to higher productivity
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