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A research on building block type miniature harvester
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作者 LAN Wenfeng,CHEN Jinbao,QIU Xianjun,and LIU Maorong,Fujian Machinery Res Inst,Fuzhou,China 《Chinese Rice Research Newsletter》 1994年第4期8-8,共1页
In this invention, the procedure of cutting, conveying, threshing and transporting stalks are carried out by a set of conveying chains ( see figure). The axis of the main drum 2 is placed horizontally transverse (vert... In this invention, the procedure of cutting, conveying, threshing and transporting stalks are carried out by a set of conveying chains ( see figure). The axis of the main drum 2 is placed horizontally transverse (vertical to the forward direction). The upper and the lower conveying chains 8, 10 as well as cutterbar 11 are mounted in the lower part of the axial feed opening. Several star well 9 and plastic stalk-pressing rod are filled at the front of the lower conveying chain, and a spring stalk pressing assembly at the rear. The residue after threshing is discharged by star seels 18, 34. The staiks are placed near the cutterbar 11. Once the stalks are cut off by the cutterbar, they 展开更多
关键词 type A research on building block type miniature harvester
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SRC Panel-A New Type Light and Energy-Saving Building Material
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《China's Foreign Trade》 1998年第2期28-28,共1页
关键词 SRC Panel-A New type Light and Energy-Saving building Material 110
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Types and Characteristics of Pavilions in Wu'an:A Case Study of Traditional Market Towns in Wu'an
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作者 YANG Wenbin ZHAN Xiating 《Journal of Landscape Research》 2022年第1期87-90,共4页
Through the field survey and mapping of the existing Wu’an pavilions in Wu’an traditional market towns, the architectural subdivision of typology is carried out, and the location, architectural characteristics, func... Through the field survey and mapping of the existing Wu’an pavilions in Wu’an traditional market towns, the architectural subdivision of typology is carried out, and the location, architectural characteristics, functional bias and cultural connotation of different types of pavilions are deeply analyzed and summarized. It is a compilation of information on existing historical buildings, and also provides suggestions for further creative and sustainable protection and inheritance of Wu’an pavilions. 展开更多
关键词 Arch pavilion type of building Features Wu’an
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Assessment of Urban Morphology through Local Climate Zone Clas­sification and Detection of the Changing Building States of Siliguri Municipal Corporation and Its Surrounding Area, West Bengal
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作者 Ivana Hoque Sushma Rohatgi 《Journal of Geographical Research》 2022年第2期28-43,共16页
Progressive population concentration to the urban centres has fuelled urban expansion in both horizontal as well as vertical direction,consequences in the urban landscape change.This growth resulted in posing many com... Progressive population concentration to the urban centres has fuelled urban expansion in both horizontal as well as vertical direction,consequences in the urban landscape change.This growth resulted in posing many complexities towards sustainable urban development which can be counted by observing the changing proportions of natural landscapes and built up areas.Local climate zones(LCZs),a systematic classification of natural lands and built up lands,are identified in Siliguri Municipal Corporation(SMC)and its surrounding region to explore the spatio temporal complexity of urban growth in recent years.Rapid urbanization and population growth of SMC have led to change the building states from low rise to mid and high rise which added an important feature to the urban landscape dynamics of the area.The work intends to provide the vision of spatial urban morphology of the area through investigation of its changing land use and changing urban built space using the LCZ classification.The study shows that the WUDAPT method can accurately generate LCZs,especially the built type LCZs.The results of the proposed LCZ classification scheme are tested using error matrix for the year 2001 and 2021 having coefficient values of 0.79 and 0.81 respectively.The study explores the changing pattern of building states of SMC using LCZ products,which is essential for proper urban planning implementations. 展开更多
关键词 LCZ classification Urban land cover SMC Changing urban building types
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Automatic identifcation of building structure types using unmanned aerial vehicle oblique images and deep learning considering facade prior knowledge
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作者 Leilei Zhang Guoxin Wang Weijian Sun 《International Journal of Digital Earth》 SCIE EI 2023年第1期3348-3367,共20页
Building structural type information is the foundation for seismic risk assessment and management since it reflects the behavior of buildings under seismic load.However,in earthquake-prone regions,most of this informa... Building structural type information is the foundation for seismic risk assessment and management since it reflects the behavior of buildings under seismic load.However,in earthquake-prone regions,most of this information is out-of-date or nonexistent.This paper proposes a deep learning-based method for automatically identifying building structural types from unmanned aerial vehicle(UAV)oblique images.The method consists of four steps:(1)collect facades of buildings with different structural types by web crawler technology as a sample set;(2)construct a convolutional neural network with a facade prior knowledge attention branch and train the model using the sample set;(3)extract building facades from UAV oblique images based on the georeferencing results of feature points as the test set;(4)identify building structural types by inputting the test set into the trained model.Three cases have been selected to verify the feasibility and applicability of the method.The average recall rate of 85%and the average F1 score of 83%have been achieved in areas with regular building distribution.This method integrates multidisciplinary knowledge to provide a solution for rapid collection of building vulnerability information,and expands the role of oblique photography data in urban management and disaster prevention planning. 展开更多
关键词 Oblique photography deep learning building structural types UAV attention branch
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Archetype identification and urban building energy modeling for city-scale buildings based on GIS datasets 被引量:8
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作者 Zhang Deng Yixing Chen +1 位作者 Jingjing Yang Zhihua Chen 《Building Simulation》 SCIE EI CSCD 2022年第9期1547-1559,共13页
Urban building energy modeling has become an efficient way to understand urban building energy use and explore energy conservation and emission reduction potential.This paper introduced a method to identify archetype ... Urban building energy modeling has become an efficient way to understand urban building energy use and explore energy conservation and emission reduction potential.This paper introduced a method to identify archetype buildings and generate urban building energy models for city-scale buildings where public building information was unavailable.A case study was conducted for 68,966 buildings in Changsha city,China.First,clustering and random forest methods were used to determine the building type of each building footprint based on different GIS datasets.Then,the convolutional neural network was employed to infer the year built of commercial buildings based on historical satellite images from multiple years.The year built of residential buildings was collected from the housing website.Moreover,twenty-two building types and three vintages were selected as archetype buildings to represent 59,332 buildings,covering 87.4%of the total floor area.Ruby scripts leveraging on OpenStudio-Standards were developed to generate building energy models for the archetype buildings.Finally,monthly and annual electricity and natural gas energy use were simulated for the blocks and the entire city by EnergyPlus.The total electricity and natural gas use for the 59,332 buildings was 13,864 GWh and 23.6×10^(6) GJ.Three energy conservation measures were evaluated to demonstrate urban energy saving potential.The proposed methods can be easily applied to other cities in China. 展开更多
关键词 urban building energy modeling building type year built-archetype building ENERGYPLUS
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A graphical method of presenting property rights, building types, and residential behaviors: A case study of Xiaoxihu historic area, Nanjing 被引量:2
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作者 Yinan Dong Dongqing Han Marco Trisciuoglio 《Frontiers of Architectural Research》 CSCD 2022年第6期1077-1091,共15页
One of the main reasons for the decline of urban historic areas in China is the coexistence of multiple property rights.It also deeply affects conservation and regeneration practice.This paper aims to propose a graphi... One of the main reasons for the decline of urban historic areas in China is the coexistence of multiple property rights.It also deeply affects conservation and regeneration practice.This paper aims to propose a graphical method that illustrates the association between property rights,space,and resident behavior.Based on typological maps and justified graphs,a three-step method was proposed to visualize the relationships between these three elements.The final graph and quantitative data were used to observe the evolution of the courtyard building from a diachronic perspective,as well as to compare the residential behavior in different types from a synchronic perspective.The results show that following the subdivision of property rights,the building layout become more diverse due to various illegal additions,while the residential behavior within different building types tends to be consistent.Moreover,the study observed the traditional Chinese courtyard buildings’adaptability.The findings contribute to understand the evolution of Chinese urban historic areas and internal motivation,and provide guidance for the conservation and regeneration practice. 展开更多
关键词 Property rights building types Residential behaviors Graphical method Historic area
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China and the United States Should Build A New Type of Major Powers Relations——A Study on China’s U.S. Policy Thinking since the New Century
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作者 Wang Gonglong Guo Xiaoqin 《Peace》 2013年第2期20-29,共10页
Since the reform and opening-up to the outside world, China has formed a series of guidelines and policies towards the United States, which are the theoretical foundation of China’s U.S. policy thinking in the New Ce... Since the reform and opening-up to the outside world, China has formed a series of guidelines and policies towards the United States, which are the theoretical foundation of China’s U.S. policy thinking in the New Century. Entering the new century, the international situation has undergone profound and complicated changes, the national strength gap between China and the United States has narrowed, their common interests have expanded, differences and contradictions have increased. Therefore, China stands for both countries to adhere to the direction of developing cooperative partnership, respect each other, abide by the promises, seek equal and mutual benefits and win-win cooperation, and mutually respect each others core interests. The future development of China-U.S. relations still face many challenges and China’s U.S. policy thinking needs to keep abreast with the times. 展开更多
关键词 A Study on China’s U.S China and the United States Should Build A New type of Major Powers Relations Policy Thinking since the New Century
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