scholarly journals Estimation of area of photovoltaic panels for electric buses in Warsaw. Extreme variant

2018 ◽  
Vol 19 (5) ◽  
pp. 13-17
Author(s):  
Dorota Gręda ◽  
Sławomir Bielecki
Keyword(s):  
Power Plants ◽  
Weather Data ◽  
Weather Station ◽  
Power Demand ◽  
Photovoltaic Panels ◽  
Public Data ◽  
Different Seasons ◽  
Extreme Variant ◽  
Urban Conditions ◽  
The City

The aim of this paper is to estimate the area of power plants based on renewables (photovoltaic panels) for the case where public transport in Warsaw would be fulfilled by electric buses instead of combustion buses. The analysis are in extreme variant when all combustion buses were exchanged for electric buses and the power demand was completely covered from photovoltaics. Calculations are based on weather data from weather station placed in the center of Warsaw, also public data and information of parameters of electric buses which were tested in urban conditions. Results for different seasons are shown in comparison to the area of the city of Warsaw district.

scholarly journals Using Estimated On-Site Ambient Temperature Has Uncertain Benefit When Estimating Postmortem Interval

2010 ◽  
Vol 2010 ◽  
pp. 1-7 ◽  
Author(s):  
Laurent Dourel ◽  
Thierry Pasquerault ◽  
Emmanuel Gaudry ◽  
Benoît Vincent
Keyword(s):  
Original Data ◽  
Postmortem Interval ◽  
Weather Data ◽  
Weather Station ◽  
Degree Days ◽  
Temperature Correlation ◽  
Correlation Data ◽  
Different Seasons ◽  
The Impact ◽  
Accumulated Degree Days

The forensic entomologist uses weather station data as part of the calculation when estimating the postmortem interval (PMI). To reduce the potential inaccuracies of this method caused by the distance between the crime scene and the meteorological station, temperature correlation data from the site of the corpse may be used. This experiment simulated the impact of retrospective weather data correction using linear regression between seven stations and sites in three climatic exposure groups during three different seasons as part of the accumulated degree days calculation for three necrophagous species (Diptera: Calliphoridae). No consistent benefit in the use of correlation or the original data from the meteorological stations was observed. In nine cases out of 12, the data from the weather station network limited the risk of a deviation from reality. The forensic entomologist should be cautious when using this correlation model.

Жизненное состояние древесных насаждений в условиях города Актобе (Казахстан)

2017 ◽  
Vol 7 (4) ◽  
pp. 51-55
Author(s):  
S. A. Abiev ◽  
S. A. Aipeisova ◽  
N. A. Utarbaeva
Keyword(s):  
Urban Area ◽  
Woody Plants ◽  
Health State ◽  
Urban Habitats ◽  
Resistant Species ◽  
Vital State ◽  
Ulmus Laevis ◽  
Urban Conditions ◽  
The City ◽  
Trees And Shrubs

<p>The purpose of our work is to assess the health state of woody plants growing in different habitats of the city of Aktobe. We have studied the health state of arboreal and shrubby plants growing in various urban habitats; the survey was conducted during 2016-2017 by route-visual method. We performed the analysis of species diversity, abundance and density in urban area. The assessment of health state of the trees was made according to V.A. Alekseev. From your data and literature review we established that such species as Ulmus pinnato-ramosa, Acer negundo, Populus tremula, Populus nigra, and Syringa vulgaris have strong winter resistnce in the territory of Aktobe; we registered that only their apex buds and emds of the shoots were frozen in severe winters. The medium-resistant speices include Ulmus laevis and Acer platonoides. They are less plastic and suffer from late spring and early autumn frosts. The Amorpha fruticosa, Vitis vinifera, and Parthenocissus guinguefolia could be considered as the non-resistant species, since they usually freeze up to the snow cover line. The analysis of the vital state made it possible to assess the resistance to urban conditions of the majority of trees and shrubs registered in urban habitats of Aktobe. According to the preliminary data, the origin of the plant and its winter resistance are of main importance when introducing new species to urban area.</p>

Optimizing the Value-to-Cost Ratio for Central Receiver Electric Power Plants

1989 ◽  
Vol 111 (3) ◽  
pp. 193-203
Author(s):  
James A. Dirks ◽  
Clement J. Chiang
Keyword(s):  
Energy Cost ◽  
Power Plants ◽  
Thermal Power ◽  
Computer Code ◽  
Weather Data ◽  
Cost Ratio ◽  
Electric Power Plants ◽  
A Value ◽  
Central Receiver ◽  
Solar Plant

Typically, solar thermal power plants are designed to minimize the levelized energy cost. However, to maximize the benefit of a solar plant and, hence, maximize the wealth of an investor or a utility, a solar plant should be designed and operated with the objective of maximizing the value-to-cost ratio. This paper describes a value and cost analysis of solar central receiver power plants using molten salt external receiver technology. These plants were assumed to operate within the service area of the Southern California Edison Company. The SOLERGY computer code was used to simulate the performance of the solar plants using 1984 weather data for Barstow, California. A value-maximizing dispatch strategy that uses thermal storage to shift operation of the turbine from nonpeak demand periods to the utility’s peak demand period, is shown to greatly increase the value of a solar central receiver power plant with little increase in the levelized energy cost. Results are presented as functions of storage capacity, type of dispatch strategy, size of the field relative to the turbine, and turbine size.

The City-Logic of Resistance: Subverting Urbicide in the Middle East City

2017 ◽  
Vol 12 (3) ◽  
pp. 10-24 ◽  
Author(s):  
Bruce Stanley
Keyword(s):  
Middle East ◽  
Armed Conflict ◽  
Right To The City ◽  
Urban Theory ◽  
Civil Resistance ◽  
Extreme Variant ◽  
Urban Terrain ◽  
Critical Urban Theory ◽  
The Right ◽  
The City

Most armed conflict today takes place within urban terrain or within an urbanised context. An extreme variant of such armed conflict is violence perpetrated by external state and non-state forces within the city, known as urbicide. Urbicidal violence deliberately strives to kill, discipline or deny the city to its inhabitants by targeting and then reordering the sociomaterial urban assemblage. Civil resistance within urbicidal violence seeks to subvert the emerging alternative sovereign order sought by such forces. It does so by using the inherent logic of the city in order to maintain/restore the community's social cohesion, mitigate the violence, affirm humanity, and claim the right to the city. This paper investigates the city-logic of civil resistance through examples drawn from the recent urbicidal experiences of Middle East cities such as Gaza, Aleppo, Mosul, and Sana'a. Theoretical insights from the conflict resolution literature, critical urban theory, and assemblage thinking inform the argument.

scholarly journals Designing carbon capture power plants to assist in meeting peak power demand

2009 ◽  
Vol 1 (1) ◽  
pp. 1457-1464 ◽  
Author(s):  
M.R. Haines ◽  
J.E. Davison
Keyword(s):  
Carbon Capture ◽  
Peak Power ◽  
Power Plants ◽  
Power Demand

scholarly journals The ecological framework as part of the land and property complex of an industrial city (on the example of an urban district of Tobolsk)

2021 ◽  
Vol 39 ◽  
pp. 01004
Author(s):  
N.V. Litvinenko ◽  
E.P. Evtushkova ◽  
Yu.E. Ogneva
Keyword(s):  
Urban Environment ◽  
Industrial Production ◽  
Ecological Framework ◽  
Urban District ◽  
Industrial City ◽  
Reconstruction Methods ◽  
Urban Conditions ◽  
The City ◽  
Property Complex

In modern urban conditions with intensive industrial production affecting the life and health of people, the authorities of many cities have thought about holding activities aimed at improving the ecological component of the urban environment. One of such activities may be the creation or improvement of the ecological framework of the city. This article discusses the features of the ecological framework in the industrial city of Tobolsk. A number of tasks that are faced by the City Administration were formulated; those must be solved using sound reconstruction methods of urban territorial and functional structures. The role of the ecological framework of the urban area is considered as the possibility of avoiding the environmental problems’ emergence and preserving the ability of the territorial system as an independent land and property complex to develop.

scholarly journals Placemaking in Arab Cities. Realities, Challenges, and Prospects

2020 ◽  
pp. 1-4
Keyword(s):  
Public Space ◽  
Place Branding ◽  
Core Component ◽  
Public Places ◽  
Challenges And Opportunities ◽  
Inclusive Approach ◽  
Distinct Sense ◽  
Urban Conditions ◽  
The City

Placemaking is an inclusive approach to the planning, design, and management of public places by which people create and/or recreate places. In the context of the Arab cities, placemaking projects are often envisaged to transform communities’ spaces into lively and attractive places; to enhance quality of life and opportunity for existing residents. It also aims to (re)create a distinct sense of place or place branding at large. Exploring how contemporary Arab cities have framed placemaking processes within the contemporary urban conditions, and sometimes the threats to the quality of the city, are helping in creating healthier, equitable, and humane public places. Such challenges and opportunities of these processes is a core component of this special edition of The Journal of Public Space, which discusses various aspects of placemaking in Arab Cities, ranges from creating, enhancing, adapting and developing attractive and efficient public places in Arab Cities. In this context, academic papers and viewpoints have manifested a variety of perspectives, theories and practices of placemaking concepts, methods, recent challenges and possible solutions. They portrayed several tools on establishing and revitalizing public places starting from governmental toolkits, reaching unplanned activities fostering community engagement in placemaking.

Use of replaceable working equipment to expand the functionality of the excavator

2021 ◽  
pp. 32-38
Author(s):  
Keyword(s):  
Economic Feasibility ◽  
Design Calculation ◽  
Frozen Ground ◽  
Frozen Soils ◽  
Existing Structures ◽  
Equipment Replacement ◽  
Rotary Mill ◽  
Scope Of Application ◽  
Urban Conditions ◽  
The City

Increasing the range of replaceable working equipment for hydraulic single-bucket excavators allows to expand the scope of application significantly, increase the efficiency of its usage, as well as the mobility of these machines. The purpose of the study is to design working equipment replacement items, used for hydraulic single-bucket excavator for digging frozen soils in the city Vladivostok. The main tasks of the study are to analyze frozen soils in the region and their existing structures, select a layout scheme for further design calculation, evaluate the economic feasibility of the proposed hydraulic excavator working equipment design replacement items, used for digging frozen soils in Vladivostok city. Keywords excavator, replacement equipment, frozen ground, urban conditions, rotary mill, vibro-ripper, hydraulic hammer, bucket-ripper, tusk-ripper, gripper-tongs working body

Local Internet Forums

2010 ◽  
pp. 80-102 ◽  
Author(s):  
Aija Staffans ◽  
Heli Rantanen ◽  
Pilvi Nummi
Keyword(s):  
Urban Planning ◽  
Land Use Planning ◽  
Local Information ◽  
Development Projects ◽  
Data Systems ◽  
Research Results ◽  
Speaking Out ◽  
Public Data ◽  
Internet Forums ◽  
The City

The Internet is shaking up the expertise and production of knowledge in the planning institution. Digital citizens are searching for information from different places, combining formal and informal sources without apology, and are debating and speaking out on matters. Public planning organisations will be fully stretched to adapt their practices and services to meet these demands. This chapter will present the research results of a project that embarked on gathering and combining local information and knowledge on urban planning on Internet forums. Interactive applications were also developed for these forums to support public participation in ongoing land use planning and development projects in the City of Espoo, Finland. The research results demonstrate how fragmented local, place-based knowledge is, how difficult it is to combine informal and formal information in urban planning, and how inaccessible public data systems still are.

scholarly journals Updated Typical Weather Years for the Energy Simulation of Buildings in Mediterranean Climate. A Case Study for Sicily

Energies ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 4115 ◽  
Author(s):  
Vincenzo Costanzo ◽  
Gianpiero Evola ◽  
Marco Infantone ◽  
Luigi Marletta
Keyword(s):  
Residential Building ◽  
Building Energy ◽  
Energy Simulation ◽  
Weather Data ◽  
Weather Station ◽  
Simulation Tools ◽  
The Difference ◽  
Energy Simulations

Building energy simulations are normally run through Typical Weather Years (TWYs) that reflect the average trend of local long-term weather data. This paper presents a research aimed at generating updated typical weather files for the city of Catania (Italy), based on 18 years of records (2002–2019) from a local weather station. The paper reports on the statistical analysis of the main recorded variables, and discusses the difference with the data included in a weather file currently available for the same location based on measurements taken before the 1970s but still used in dynamic energy simulation tools. The discussion also includes a further weather file, made available by the Italian Thermotechnical Committee (CTI) in 2015 and built upon the data registered by the same weather station but covering a much shorter period. Three new TWYs are then developed starting from the recent data, according to well-established procedures reported by ASHRAE and ISO standards. The paper discusses the influence of the updated TWYs on the results of building energy simulations for a typical residential building, showing that the cooling and heating demand can differ by 50% or even 65% from the simulations based on the outdated weather file.

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