scholarly journals Analysis on the Status Quo and Construction Problems of Domestic Urban Civil Air Defense Engineering System in China

2021 ◽  
Vol 2 (2) ◽  
pp. 49-59
Author(s):  
Yile Chen ◽  
Junzhang Chen
Keyword(s):  
Economic Loss ◽  
General Situation ◽  
Engineering System ◽  
Network System ◽  
Urban Network ◽  
Continuous Increase ◽  
Air Defense ◽  
The Status ◽  
In Series ◽  
The City

As the urbanization process in developing countries continues to accelerate, although my country has achieved significant results in planning and construction, there are still many problems. For example, the rate of urban green space decreases with the continuous increase of urban buildings. Therefore, the domestic urban underground civil air defence Engineering construction is in a very important position at this stage, and our development goals must be shifted from above ground to underground. This article analyzes the general situation of the domestic civil air defence engineering system, expounds on the current situation and existing problems of my country's urban civil air defence engineering system, which has an important influence on the development of my country's cities. Functional departments must take into account the various functions of civil air defence projects and put people's safety first. At the same time, firefighters should also improve their professionalism, leadership and organizational skills, and evacuate people when encountering danger and arrange for them to take refuge in designated locations. The technicians in the relevant departments in the city need to use scientific and technological means to mix the urban network system in series and parallel so that the various structures of the urban network system are unified and interact with each other. When a disaster strikes, it can protect the safety of the people and reduce the economic loss of the city. Reduce to the lowest level to maximize benefits.

Urban Spatial Strategic Research and its Practice in China-A Case Study of the Central Plain Cities

2013 ◽  
Vol 838-841 ◽  
pp. 3050-3053
Author(s):  
Yong Jin Liu
Keyword(s):  
Strategic Planning ◽  
Network System ◽  
Urban Hierarchy ◽  
Strategic Research ◽  
Central Plain ◽  
Technology Roadmap ◽  
The Status ◽  
The City ◽  
Planning Approaches

This paper discusses the status and development of urban spatial strategic planning studies, and elaborates three dominant planning approaches of spatial strategic planning. Currently, Chinas urban spatial strategic planning does not adhere to details, but rather focus on the prospect of the city, the entire technology roadmap does not emphasize exhaustive, but the city's ability to solve practical problems. The article also combine studies on the Central Plain Cities to conclude that Chinas urban strategic spatial planning should focus on the development of several node cities, optimize the urban hierarchy and network system in region.

FORMATION OF FORTIFICATION ART IN ANCIENT EAST COUNTRIES

2019 ◽  
Vol 21 (4) ◽  
pp. 94-124
Author(s):  
Е. N. Polyakov ◽  
M. I. Korzh
Keyword(s):  
Ancient Egypt ◽  
Building Structures ◽  
Ancient China ◽  
Natural Landscape ◽  
Advantages And Disadvantages ◽  
Medieval China ◽  
The Status ◽  
Architectural Structures ◽  
The City ◽  
New Babylon

The article presents a comparative analysis of fortification art monuments in such East countries from Ancient Egypt to medieval China. An attempt is made to identify the main stages of the fortification development from a stand-alone fortress (citadel, fort) to the most complex systems of urban and border fortifications, including moats, walls and gates, battle towers. It is shown that the nature of these architectural structures is determined by the status of the city or settlement, its natural landscape, building structures and materials, the development of military and engineering art. The materials from poliorceticon (Greek: poliorketikon, poliorketika), illustrate the main types of siege machines and mechanisms. The advantages and disadvantages of boundary shafts and long walls (limes). The most striking examples are the defensive systems of Assyria, New Babylon, Judea and Ancient China.

EAST INDIAN AND OTHER DOCKS IN LONDON: IMPERIAL ARCHITECTURE, COLONIAL TRADE AND POSTCOLONIAL MEMORY

2020 ◽  
pp. 190-205
Author(s):  
S. E. Sidorova ◽  
Keyword(s):  
20Th Century ◽  
Industrial Revolution ◽  
Historical Memory ◽  
Visual Image ◽  
East Indian ◽  
Architectural Representation ◽  
The World ◽  
The Status ◽  
Postcolonial History ◽  
The City

The article concentrates on the colonial and postcolonial history, architecture and topography of the southeastern areas of London, where on both banks of the River Thames in the 18th–20th centuries there were located the docks, which became an architectural and engineering response to the rapidly developing trade of England with territories in the Western and Eastern hemispheres of the world. Constructions for various purposes — pools for loading, unloading and repairing ships, piers, shipyards, office and warehouse premises, sites equipped with forges, carpenter’s workshops, shops, canteens, hotels — have radically changed the bank line of the Thames and appearance of the British capital, which has acquired the status of the center of a huge empire. Docks, which by the beginning of the 20th century, occupied an area of 21 hectares, were the seamy side of an imperial-colonial enterprise, a space of hard and routine work that had a specific architectural representation. It was a necessary part of the city intended for the exchange of goods, where the usual ideas about the beauty gave way to considerations of safety, functionality and economy. Not distinguished by architectural grace, chaotically built up, dirty, smoky and fetid, the area was one of the most significant symbols of England during the industrial revolution and colonial rule. The visual image of this greatness was strikingly different from the architectural samples of previous eras, forcing contemporaries to get used to the new industrial aesthetics. Having disappeared in the second half of the 20th century from the city map, they continue to retain a special place in the mental landscape of the city and the historical memory of the townspeople, which is reflected in the chain of museums located in this area that tell the history of English navigation, England’s participation in geographical discoveries, the stages of conquering the world, creating an empire and ways to acquire the wealth of the nation.

TILTAI IR KELTAI KAIP XVIII AMŽIAUS VILNIAUS PAVIETO BAJORŲ TEISINIŲ GINČŲ OBJEKTAI IR NUSIKALTIMŲ ERDVĖS

2018 ◽  
pp. 299-318
Author(s):  
Domininkas Burba
Keyword(s):  
Eighteenth Century ◽  
Rural Areas ◽  
Common Type ◽  
General Situation ◽  
Small Object ◽  
Violent Crimes ◽  
Rural Space ◽  
Green Bridge ◽  
Violent Conflicts ◽  
The City

Bridges and ferries, as objects of dispute and crime locations among the eighteenth century nobles of Vilnius district, is the main topic of research in this article. Case materials and auxiliary documents from the records of Vilnius district castle and land courts reveal how often bridges are mentioned in the court processes in both violent and non-violent crimes. Research explores what types of violent crimes took place on bridges or ferries most often. It also works on questions of geographic localisation and statistics, discussing general situation of bridges in Vilnius and its neighbouring areas in the eighteenth century. Bridges are regularly mentioned in the books of the eighteenth century Vilnius castle and land courts, albeit most references are not related to conflicts and bridges are mentioned as orientation marks or in reference to location of a real estate object. Both non-violent legal disputes, involving bridges as objects, and violent crimes on the bridges were not in multitude, however non-violent crimes were in smaller numbers. There were seven dispute cases about lands, properties and plots of land where bridges and ferries are mentioned. Non-violent conflicts mostly took place in rural areas of the district, four of them, and three such disputes happened in Vilnius (one on the Green Bridge and two on the bridges over the River Vilnia). Most commonly recorded violent crime on a bridge was beating and, since this was the most common type of crime perpetrated by nobles in the eighteenth century Vilnius district, this trend is logical. A bridge is once mentioned in the record about a raid. In terms of location, more crimes on the bridges took place in the rural space, although this particular space wasn’t dominant, since six crimes were reported in the province and five in the city – two in Vilnius on the Green (Stone) Bridge, two on the bridges over the River Vilnia and one on a ferry near Šnipiškės. Trends in crime locations match general crime tendencies in Vilnius district, where more crimes took place in the rural space than in the urban one. One may guess, that the rare mention of bridges partially testifies to the fact that in the eighteenth century Vilnius district level of communication was not high and there were not too many bridges. On the other hand, when assessing trends in violent crimes in Vilnius district it was revealed that bridge based crimes comprised only one percent of all crimes. Having in mind that bridge is a relatively small object, compared to several different or other urban and rural spaces, this number isn’t that small. Keywords: Vilnius district, castle court, land court, crimes, nobles, peasants, bridges, ferries, passings.

The Implementation of Biological Phosphorus and Nitrogen Removal with the Bio-Denipho Process on a 265,000 PE Treatment Plant

1992 ◽  
Vol 25 (4-5) ◽  
pp. 161-168 ◽  
Author(s):  
J. Einfeldt
Keyword(s):  
Nitrogen Removal ◽  
Treatment Plant ◽  
First Year ◽  
In Series ◽  
Design Loads ◽  
Last Stage ◽  
Two Stages ◽  
The City ◽  
Biological Phosphorus

A process, called Bio-Denipho, for combined biological phosphorus and nitrogen removal in a combination of an anaerobic tank and two oxidation ditches is described. In this process the anaerobic tank consisting of three sections working in series is followed by two oxidation ditches. These too are working in series, but with both inlet to and outlet from the tanks changing in a cycle. The Bio-Denipho process is described specifically for the process itself and as a case study for the implementation of the process on a 265,000 pe wastewater treatment plant for the city of Aalborg in Denmark. The plant was designed and erected in two stages and the last stage was inaugurated October 31,1989. Lay-out and functions for the plant is described and design loads, plan lay-out and tank volumes are given in this paper together with performance data for the first year in operation.

scholarly journals Distance Protection of Series Capacitor Compensated Lines: Practical Considerations, Industrial Status and Development

Electricity ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 168-186
Author(s):  
Md Tanbhir Hoq ◽  
Nathaniel Taylor
Keyword(s):  
Transmission Lines ◽  
Transmission Network ◽  
Distance Protection ◽  
Academic Literature ◽  
System Protection ◽  
The Status ◽  
In Series ◽  
Insight Into ◽  
Series Capacitor ◽  
Current Inversion

The introduction of series capacitors in transmission lines causes problems in terms of reliability and the security of distance protection relays. As distance protection is widely used in the transmission network, the challenge of applying it to series compensated lines has been taken up by utilities and relay manufacturers in various ways. In the field of power system protection, developments are largely driven by relay manufacturers, and are often not published in the academic literature; the status and trend of the relay manufacturer’s development are better found in their product manuals and patent activity. Further insight into specific implementations by transmission utilities can be found from publications in industry-led forums and some academic journals. This article surveys the status and development of distance protection for series compensated lines, with a focus on industrial implementation and practical considerations. Factors that influence the protection of series compensated lines are presented. Implementation examples reported by utilities are summarized as examples of the different situations encountered and the methods used to deal with them. It is observed that many utilities use communication-aided protection in series compensated lines, and distance protection is used with reduced reach. Solutions described in relay manuals are presented to demonstrate the manufacturers’ approaches to problems associated with series capacitor protection. While there are methods to counter voltage inversion, current inversion seems to represent a more serious challenge. A patent overview indicates the trends in this domain to be moving towards time-domain-based faster protection methods.

scholarly journals The Interlocking Processes Constraining the Struggle for Sanctuary in the Trump Era: The Case of La Puente, CA

2021 ◽  
Vol 10 (5) ◽  
pp. 155
Author(s):  
Gilda L. Ochoa
Keyword(s):  
Status Quo ◽  
City Council ◽  
Gender And Sexuality ◽  
People Of Color ◽  
Transformative Change ◽  
Cautionary Tale ◽  
Community Members ◽  
White Supremacist ◽  
The Status ◽  
The City

By 10 January 2017, activists in the predominately Latina/o working class city of La Puente, California had lobbied the council to declare the city a sanctuary supporting immigrants, people of color, Muslims, LGBTQ people, and people with disabilities. The same community members urged the school district to declare itself a sanctuary. While community members rejoiced in pushing elected officials to pass these inclusive resolutions, there were multiple roadblocks reducing the potential for more substantive change. Drawing on city council and school board meetings, resolutions and my own involvement in this sanctuary struggle, I focus on a continuum of three overlapping and interlocking manifestations of white supremacist heteronormative patriarchy: neoliberal diversity discourses, institutionalized policies, and a re-emergence of high-profiled white supremacist activities. Together, these dynamics minimized, contained and absorbed community activism and possibilities of change. They reinforced the status quo by maintaining limits on who belongs and sustaining intersecting hierarchies of race, immigration status, gender, and sexuality. This extended case adds to the scant scholarship on the current sanctuary struggles, including among immigration scholars. It also illustrates how the state co-opts and marginalizes movement language, ideas, and people, providing a cautionary tale about the forces that restrict more transformative change.

scholarly journals Waterlogging Risk Assessment: An Undervalued Disaster Risk in Coastal Urban Community of Chattogram, Bangladesh

Earth ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 151-173
Author(s):  
Md. Rezuanul Islam ◽  
Debasish Roy Raja
Keyword(s):  
Spatial Data ◽  
Risk Index ◽  
Structural Data ◽  
Economic Loss ◽  
Primary Objective ◽  
Social Infrastructure ◽  
Simple Method ◽  
City Area ◽  
Inventory Map ◽  
The City

In recent years, rainfall-induced waterlogging has become a common hazard in the highly urbanized coastal city of Chattogram, Bangladesh, resulting in a high magnitude of property damage and economic loss. Therefore, the primary objective of this research was to prepare a waterlogging inventory map and understand the spatial variations of the risk by means of hazard intensity, exposure, and vulnerability of waterlogging. In this research, the inventory map and factors influencing waterlogging hazards were determined from a participatory survey, and other spatial data, including land elevation, population, and structural data, were collected from secondary sources. The analytical hierarchy process was applied to measure the hazard intensity, and the exposure and vulnerability were estimated by overlaying the spatial data onto the hazard intensity map. A total of 58 locations were identified as waterlogging affected, which covered ~8.42% of the city area. We showed that ~3.03% of the city area was greatly vulnerable to waterlogging in terms of their social, infrastructure, critical facilities, economic, and environmental vulnerabilities. The obtained waterlogging risk index map suggested that ~2.71% of the study area was at very high risk, followed by moderate (~0.15%), low (~3.89%), and very low (~1.67%). The risk analysis presented in this study was a simple method that can be applied to assess the relative risk of waterlogging in different regions, and the results were applicable to the prevention and mitigation of waterlogging for Chattogram City.

Faith as Taking the Risk

1968 ◽  
Vol 25 (2) ◽  
pp. 201-210 ◽  
Author(s):  
Wyatt T. Walker
Keyword(s):  
Status Quo ◽  
Prisoners Of War ◽  
The Future ◽  
The Status ◽  
Two Measures ◽  
The City

“Then Elisha said to those people who were assembled in the main square, in the midst of a terrible famine, with the Syrian army at the gate: ‘In about twenty-four hours you will be able to buy a measure of fine flour for a shekel and two measures of barley for a shekel.’ And the captain upon whose arm the king leaned looked at him and spoke in derision: ‘Ha! What's God going to do? Open up a hole in the sky and pour out food upon all of these hungry people?’ And Elisha turned to him and said: ‘You have a big mouth. You will see it with your own eyes, but you will not eat thereof.’ And there were four lepers sitting at the entering in of the gate of Samaria, and they held a conversation amongst themselves that had to do with what the future might hold for them. And they said one to another: ‘What good is it for us to sit here until we die? If we go into the city, there is a famine there, and we shall die. If we sit here, if we maintain the status quo, if we hold what we've got, we shall die also. Come on, let us go out to meet the Syrian hosts, let's try something that we never tried before, and perhaps we shall be taken prisoners of war, and, if so, at least we'll survive. And if not, what have we got to lose?’” (II Kings 7: 1–20; the “Walker” translation).

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