RESEARCH AND APPLICATION OF LIDAR TECHNOLOGY IN CADASTRAL SURVEYING AND MAPPING

Abstract. The state attaches great importance to the issue of the right to the use of rural land. At present, China is carrying out a large-scale mapping and confirmation of rural house sites and rural houses. The traditional measurement method mainly adopts total station or RTK manual measurement method, which is characterized by high work intensity, complex operation procedure and labor-consuming. There are hundreds of thousands of villages in China. With the development of science and technology, it is an inevitable trend to use new technologies in rural cadastral surveys to improve their efficiency and quality. LiDAR scanning technology has the advantages of high efficiency, flexibility, reliability, and high accuracy, which meet the requirements of tasks and schedules that are difficult to complete with traditional measurement methods. This paper is based on the AS-300H multi-platform LiDAR system of Huace Navigation, which integrates UAV and vehicle LiDAR for cadastral surveying and mapping. It proves that LiDAR using in rural cadastral mapping has low labor intensity, high efficiency and accuracy. At the same time, the advantages and disadvantages of LiDAR technology for cadastral mapping are also summarized and elaborated, which has a good reference and significance for those who are currently conducting rural housing and cadastral mapping work.

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Biosolar cells: global artificial photosynthesis needs responsive matrices with quantum coherent kinetic control for high yield

Interface Focus ◽

10.1098/rsfs.2015.0014 ◽

2015 ◽

Vol 5 (3) ◽

pp. 20150014 ◽

Cited By ~ 19

Author(s):

R. L. Purchase ◽

H. J. M. de Groot

Keyword(s):

The Netherlands ◽

Large Scale ◽

Artificial Photosynthesis ◽

High Efficiency ◽

Raw Material ◽

High Yield ◽

Photosynthesis Research ◽

Advantages And Disadvantages ◽

Artificial Photosynthetic ◽

Carbon Based

This contribution discusses why we should consider developing artificial photosynthesis with the tandem approach followed by the Dutch BioSolar Cells consortium, a current operational paradigm for a global artificial photosynthesis project. We weigh the advantages and disadvantages of a tandem converter against other approaches, including biomass. Owing to the low density of solar energy per unit area, artificial photosynthetic systems must operate at high efficiency to minimize the land (or sea) area required. In particular, tandem converters are a much better option than biomass for densely populated countries and use two photons per electron extracted from water as the raw material into chemical conversion to hydrogen, or carbon-based fuel when CO 2 is also used. For the average total light sum of 40 mol m −2 d −1 for The Netherlands, the upper limits are many tons of hydrogen or carbon-based fuel per hectare per year. A principal challenge is to forge materials for quantitative conversion of photons to chemical products within the physical limitation of an internal potential of ca 2.9 V. When going from electric charge in the tandem to hydrogen and back to electricity, only the energy equivalent to 1.23 V can be stored in the fuel and regained. A critical step is then to learn from nature how to use the remaining difference of ca 1.7 V effectively by triple use of one overpotential for preventing recombination, kinetic stabilization of catalytic intermediates and finally generating targeted heat for the release of oxygen. Probably the only way to achieve this is by using bioinspired responsive matrices that have quantum–classical pathways for a coherent conversion of photons to fuels, similar to what has been achieved by natural selection in evolution. In appendix A for the expert, we derive a propagator that describes how catalytic reactions can proceed coherently by a convergence of time scales of quantum electron dynamics and classical nuclear dynamics. We propose that synergy gains by such processes form a basis for further progress towards high efficiency and yield for a global project on artificial photosynthesis. Finally, we look at artificial photosynthesis research in The Netherlands and use this as an example of how an interdisciplinary approach is beneficial to artificial photosynthesis research. We conclude with some of the potential societal consequences of a large-scale roll out of artificial photosynthesis.

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Drying behaviour and microbial load after water damage

Structural Survey ◽

10.1108/ss-07-2015-0032 ◽

2016 ◽

Vol 34 (1) ◽

pp. 24-42 ◽

Cited By ~ 2

Author(s):

Andreas Zegowitz ◽

Anna Renzl ◽

Wolfgang Hofbauer ◽

Joerg Meyer ◽

Hartwig Kuenzel

Keyword(s):

Large Scale ◽

Severe Weather ◽

Microbial Load ◽

Measuring System ◽

Drying Process ◽

Professional Help ◽

Content Type ◽

Advantages And Disadvantages ◽

Water Damage ◽

The Right

Purpose – The water damage in buildings because of leaking pipes and increasingly because of floods and severe weather require professional help. Methods for improved repair and remediation techniques have to be developed. The water damage in buildings because of leaking pipes and increasingly because of floods and severe weather require professional help. Methods for improved repair and remediation techniques have to be developed. The paper aims to discuss these issues. Design/methodology/approach – Therefore, large scale laboratory tests with four rooms, each with three types of masonry walls (Figure 2 and Plate 1) and typical floors for intermediate storeys with insulation were performed within a climate simulator. Artificial water damage was provoked through watering the floors, and the dispersion of water in the floors and the rising damp in the walls was measured. In the follow-up to the watering of the floors, a company specialized in drying wet buildings, installed systems for under floor drying and wall drying. Findings – The drying process of the different components and layers of the floor construction and walls was monitored by a measuring system with more than 300 sensors for moisture content, relative humidity and temperature accompanied by thermography and demonstrated so the advantages and disadvantages of the different tested drying systems. After providing an initial contamination that is typical for construction sites, the microbial load (mould infestation) within the wet components was monitored at different times by experienced biologists. So after three weeks under floor drying no mould growth could be asserted but more bacteria than expected were found. Originality/value – The aim of the research was to gain more confidence in selecting appropriate drying procedures and systems in order to identify the right moment for terminating the drying process. A further intent was to acquire data for computer simulations.

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No guarantees – setting Australian Energy Policy for 2040

The APPEA Journal ◽

10.1071/aj18301 ◽

2019 ◽

Vol 59 (3) ◽

Author(s):

Matt Rennie

Keyword(s):

Energy Policy ◽

Distribution Systems ◽

Large Scale ◽

New Technologies ◽

Combustion Engines ◽

Energy Technologies ◽

Decentralised Systems ◽

The Right ◽

Technological Platforms

The energy industry is transforming around three fundamental tipping points; in 2021 distributed energy systems will reach cost parity with grid connected energy; in 2025 electric vehicles will reach cost parity with combustion engines; and in 2045 it will be cheaper to produce electricity using decentralised systems than it will be to transport energy around the grid, excluding the costs of production. This new 'System 2.0' will have a number of defining characteristics: it will be heavily reliant on renewables, which will account for between 40% and 50% of generation; it will be characterised by a large build out of regulated architecture to support the new mix of generation, and heavy competition for unregulated connection assets; distribution systems will shift to the paradigm of the DSO, where load is moved around largely peakless networks using decentralised energy technologies; and retailing will have changed dramatically, away from high churn margin based operations to new digital relationships characterised by large scale operations across new technological platforms. With its high proportion of solar installations, system topography and customer willingness to embrace new technologies, Australia is in a position to lead the world in the transformational times ahead. It has never been more important than now for Governments, both State and Federal, to move beyond the politics and to set energy policy with this objective in mind, ensuring that initiatives across generation, transmission, distribution and retailing reflect long term objectives in market design, investment signalling and regulatory compacts. To view the video, click the link on the right.

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A Comparative Study of Novel Permanent Magnet Arc Guideway Motors Based on Three-Dimensional Electromagnetic Field Analysis

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.462-463.739 ◽

2013 ◽

Vol 462-463 ◽

pp. 739-745

Author(s):

Kun Wang ◽

Gong Zhang ◽

Ying Pin Wang ◽

Xue Feng Zhou ◽

Xian Shuai Chen ◽

...

Keyword(s):

Permanent Magnet ◽

Electromagnetic Force ◽

High Efficiency ◽

Deflection Angle ◽

Three Dimensional ◽

Field Analysis ◽

Reciprocating Motion ◽

Advantages And Disadvantages ◽

The Right ◽

Full Swing

A novel PM arc guideway motor (PMAGM) is developed due to the drawback of the conventional motor reciprocating within certain angle. The PMAGM can directly drive load to make reciprocating motion within a limited angle with advantages of simplification, reliability, high efficiency, etc.. Aiming at the permanent magnet (PM) magnetization and solenoid coil electrifying modes, the PM deflection angle is parameterized and the influence on electromagnetic force has been analyzed between different magnetization and electrifying modes. Results show that electromagnetic force in Y direction magnetized along the external field force lines at proposal 1 is 51.23% higher than that of vertical magnetization, and the electromagnetic resultant force increases by 45.91%. As the angle of the PM deflection within 3o, the electromagnetic force in X direction points to the right, which is not good for PM slidable assembly swing. Based on comprehensive analysis of the advantages and disadvantages of several electrifying modes, the electricity combination under full swing angle is optimized.

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Practice of Small and Medium UAV in Large Scale Topographic Map

Journal of Smart Cities ◽

10.26789/jsc.2020.01.003 ◽

2020 ◽

Vol 5 (1) ◽

pp. 7-8

Author(s):

Yuxue Wei ◽

Keyword(s):

Large Scale ◽

Topographic Mapping ◽

Topographic Map ◽

Engineering Construction ◽

Aerial Photogrammetry ◽

Small Uav ◽

Cadastral Surveying ◽

Terrain Elevation ◽

Planning And Construction ◽

Surveying And Mapping

As a basic surveying and mapping work, small uav has been widely used in large scale topographic mapping. According to the needs of production and construction, digital mapping methods and aerial photogrammetry are used to provide technical support for large scale topographic mapping in engineering construction surveying and mapping, urban planning and construction, cadastral surveying and other directions. In order to control the small uav in the terrain elevation information, mapping proportion accuracy and other aspects to get better improvement, the practice of small uav in large scale topographic map is deeply analyzed, in order to understand the practical application value of small uav in large scale topographic map.

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Technological and pedagogical requirements for the functioning of the system of mixed learning in the field of higher education in Ukraine

New Collegium ◽

10.30837/nc.2021.1.71 ◽

2021 ◽

Vol 1 (103) ◽

pp. 71-76

Author(s):

Y. Boychuk ◽

Y. Opanasenko

Keyword(s):

Higher Education ◽

High Efficiency ◽

New Technologies ◽

Traditional Education ◽

Educational Process ◽

Full Time ◽

Classroom Activities ◽

Advantages And Disadvantages ◽

Pedagogical Competence ◽

New Ideas

Technologization and informatization of society create new ideas about the process of higher education and its results, which cannot be achieved in traditional education. The introduction of new technologies, the creation of information and educational environment, the involvement of active learning methods, design and distance technologies open new prospects for improving the efficiency of the educational process. At the same time, the shortcomings in using new technologies, especially distance learning, reduce the productivity of learning due to the unusualness and the need to adapt both sides of the educational process. Real communication, emotional contact, use of material objects and devices are an integral part of effective mixed education. These shortcomings can be overcome and the productivity of the educational process can be increased through the introduction of blended learning, which allows combining the advantages of traditional (full-time) and distance education, rational use of study time, increase student prepairing through the optimal ratio of online and classroom activities. Mixed learning systems have already been implemented in the West, the results of existing research confirm the high efficiency of this model of education, which opens a new space for both students and teachers, bringing the effectiveness of higher education to a new level. However, such a result is possible only if the whole list of technical and pedagogical requirements to which this article is devoted is satisfied. The article examines the basic requirements for the effective functioning of mixed learning in higher education. The components of pedagogical competence of the teacher, which are necessary for the implementation of the system of mixed learning, are identified and the potential ways of their development are given. The advantages and disadvantages of mixed learning in the current state are listed.

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Why Has There Been No People’s Power Rebellion in North Korea?

European Journal of Korean Studies ◽

10.33526/ejks.2018181.1 ◽

2018 ◽

pp. 1-34

Author(s):

Andrew Jackson

Keyword(s):

Rural Areas ◽

North Korea ◽

Large Scale ◽

Political Elite ◽

Information Control ◽

Al Jazeera ◽

The North ◽

New Information ◽

Effective System ◽

The Right

One scenario put forward by researchers, political commentators and journalists for the collapse of North Korea has been a People’s Power (or popular) rebellion. This paper analyses why no popular rebellion has occurred in the DPRK under Kim Jong Un. It challenges the assumption that popular rebellion would happen because of widespread anger caused by a greater awareness of superior economic conditions outside the DPRK. Using Jack Goldstone’s theoretical expla-nations for the outbreak of popular rebellion, and comparisons with the 1989 Romanian and 2010–11 Tunisian transitions, this paper argues that marketi-zation has led to a loosening of state ideological control and to an influx of infor-mation about conditions in the outside world. However, unlike the Tunisian transitions—in which a new information context shaped by social media, the Al-Jazeera network and an experience of protest helped create a sense of pan-Arab solidarity amongst Tunisians resisting their government—there has been no similar ideology unifying North Koreans against their regime. There is evidence of discontent in market unrest in the DPRK, although protests between 2011 and the present have mostly been in defense of the right of people to support themselves through private trade. North Koreans believe this right has been guaranteed, or at least tacitly condoned, by the Kim Jong Un government. There has not been any large-scale explosion of popular anger because the state has not attempted to crush market activities outright under Kim Jong Un. There are other reasons why no popular rebellion has occurred in the North. Unlike Tunisia, the DPRK lacks a dissident political elite capable of leading an opposition movement, and unlike Romania, the DPRK authorities have shown some flexibility in their anti-dissent strategies, taking a more tolerant approach to protests against economic issues. Reduced levels of violence during periods of unrest and an effective system of information control may have helped restrict the expansion of unrest beyond rural areas.

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White Backlash

10.23943/princeton/9780691164434.001.0001 ◽

2015 ◽

Cited By ~ 15

Author(s):

Marisa Abrajano ◽

Zoltan L. Hajnal

Keyword(s):

Ethnic Diversity ◽

Republican Party ◽

Large Scale ◽

White Americans ◽

Political Beliefs ◽

White Backlash ◽

Political Spectrum ◽

Racial Divide ◽

The Right ◽

Political Backlash

This book provides an authoritative assessment of how immigration is reshaping American politics. Using an array of data and analysis, it shows that fears about immigration fundamentally influence white Americans' core political identities, policy preferences, and electoral choices, and that these concerns are at the heart of a large-scale defection of whites from the Democratic to the Republican Party. The book demonstrates that this political backlash has disquieting implications for the future of race relations in America. White Americans' concerns about Latinos and immigration have led to support for policies that are less generous and more punitive and that conflict with the preferences of much of the immigrant population. America's growing racial and ethnic diversity is leading to a greater racial divide in politics. As whites move to the right of the political spectrum, racial and ethnic minorities generally support the left. Racial divisions in partisanship and voting, as the book indicates, now outweigh divisions by class, age, gender, and other demographic measures. The book raises critical questions and concerns about how political beliefs and future elections will change the fate of America's immigrants and minorities, and their relationship with the rest of the nation.

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The Potential of Photoelectrochemical Carbon Sinks

10.26434/chemrxiv.6231140.v2 ◽

2018 ◽

Author(s):

Matthias May ◽

Kira Rehfeld

Keyword(s):

Global Warming ◽

High Temperature ◽

Greenhouse Gas ◽

Large Scale ◽

High Efficiency ◽

Carbon Sink ◽

Solar Fuels ◽

Negative Emissions ◽

Viable Approach ◽

Low Sensitivity

Greenhouse gas emissions must be cut to limit global warming to 1.5-2C above preindustrial levels. Yet the rate of decarbonisation is currently too low to achieve this. Policy-relevant scenarios therefore rely on the permanent removal of CO2 from the atmosphere. However, none of the envisaged technologies has demonstrated scalability to the decarbonization targets for the year 2050. In this analysis, we show that artificial photosynthesis for CO2 reduction may deliver an efficient large-scale carbon sink. This technology is mainly developed towards solar fuels and its potential for negative emissions has been largely overlooked. With high efficiency and low sensitivity to high temperature and illumination conditions, it could, if developed towards a mature technology, present a viable approach to fill the gap in the negative emissions budget.

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