scholarly journals Application of Risk Analysis in the Screening of Flood Disaster Hot Spots and Adaptation Strategies

Land ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 36
Author(s):  
Er-Chiang Huang ◽  
Pei-Wen Li ◽  
Shao-Wei Wu ◽  
Chao-Yuan Lin

In recent years, Taiwan has established a sound flood control foundation in terms of river management. Due to climate change and land development, surface runoff has increased. In addition, the functions of flood control engineering facilities have their limits. Surface runoff cannot be fully absorbed by rivers, and frequent floods still occur in some areas. According to the characteristics of water flowing along the terrain to low-lying land, the terrain features can be used to find out the hot areas prone to flooding and the appropriate location of flood storage space for improving flooding. On the basis of the natural terrain environment, the disaster risk framework is used to manage environmental complexity, and to carry out research on flood warning and governance decision-making systems, so that human beings can coexist with the uncertainty of flood risk. In this study, the Zhuoshuixi Basin was used as the sample area, the SCS-CN method was used to analyze the excess runoff, and the risk concept was used to establish a flood evaluation model. In addition, through the changes in land use, the SCS-CN method estimates the difference of potential maximum retention, quantifies the variation of excess rainfall in each watershed division, and uses the digital elevation model to calculate the depression site to analyze the relationship between the difference of potential maximum retention and the depression space of the watershed. The results show that the adaptation strategy for high-risk flooded areas should be strengthened, and areas with large water storage space and a small potential maximum retention difference can be the best location for offsite compensation.

Water ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1270
Author(s):  
Kishore Panjabi ◽  
Ramesh Rudra ◽  
Pradeep Goel ◽  
Syed Ahmed ◽  
Bahram Gharabaghi

Many watershed models employ the Soil Conservation Service Curve Number (SCS-CN) approach for runoff simulation based on soil and land use information. These models implicitly assume that runoff is generated by the Hortonian process and; therefore, cannot correctly account for the effects of topography, variable source area (VSA) and/or soil moisture distribution in a watershed. This paper presents a new distributed CN-VSA method that is based on the SCS-CN approach to estimate runoff amount and uses the topographic wetness index (TWI) to distribute the runoff-generating areas within the watershed spatially. The size of the saturated-watershed areas and their spatial locations are simulated by assuming an average annual value of potential maximum retention. However, the literature indicates significant seasonal variation in potential maximum retention which can considerably effect water balance and amount of nonpoint source pollution. This paper focuses on developing a modified distributed CN-VSA method that accounts for the seasonal changes in the potential maximum retention. The results indicate that the modified distributed CN-VSA approach is better than distributed CN-VSA to simulate runoff amount and spatial distribution of runoff-generating areas. Overall, the study results are significant for improved understanding of hydrological response of watershed where seasonal factors describe the potential maximum retention, and, thus, saturation excess runoff generation in the watershed.


Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 704
Author(s):  
Hussein Al-Ghobari ◽  
Ahmed Z. Dewidar

An increasing scarcity of water, as well as rapid global climate change, requires more effective water conservation alternatives. One promising alternative is rainwater harvesting (RWH). Nevertheless, the evaluation of RWH potential together with the selection of appropriate sites for RWH structures is significantly difficult for the water managers. This study deals with this difficulty by identifying RWH potential areas and sites for RWH structures utilizing geospatial and multi-criteria decision analysis (MCDA) techniques. The conventional data and remote sensing data were employed to set up needed thematic layers using ArcGIS software. The soil conservation service curve number (SCS-CN) method was used to determine surface runoff, centered on which yearly runoff potential map was produced in the ArcGIS environment. Thematic layers such as drainage density, slope, land use/cover, and runoff were allotted appropriate weights to produced RWH potential areas and zones appropriate for RWH structures maps of the study location. Results analysis revealed that the outcomes of the spatial allocation of yearly surface runoff depth ranging from 83 to 295 mm. Moreover, RWH potential areas results showed that the study areas can be categorized into three RWH potential areas: (a) low suitability, (b) medium suitability, and (c) high suitability. Nearly 40% of the watershed zone falls within medium and high suitability RWH potential areas. It is deduced that the integrated MCDA and geospatial techniques provide a valuable and formidable resource for the strategizing of RWH within the study zones.


2012 ◽  
Vol 239-240 ◽  
pp. 1000-1003
Author(s):  
Zhao Quan Cai ◽  
Hui Hu ◽  
Tao Xu ◽  
Wei Luo ◽  
Yi Cheng He

It is urgent to study how to effectively identify color of moving objects from the video in the information era. In this paper, we present the color identification methods for moving objects on fixed camera. One kind of the methods is background subtraction that recognizes the foreground objects by compare the difference of pixel luminance between the current image and the background image at the same coordinates. Another kind is based on the statistics of HSV color and color matching which makes the detection more similar to the color identification of the human beings. According to the experiment results, after the completion of the background modelling, our algorithm of background subtraction, statistics of the HSV color and the color matching have strong color recognition ability on the moving objects of video.


Author(s):  
Ravindra Kumar Verma ◽  
Sangeeta Verma ◽  
Surendra Kumar Mishra ◽  
Ashish Pandey

Problemos ◽  
2009 ◽  
Vol 76 ◽  
pp. 52-65
Author(s):  
Vytautas Rubavičius

Straipsnyje grindžiama nuomonė, jog postmodernybė yra iš modernybės kylantis kapitalizmo sistemos būvis, kuriam būdinga gyvybės suprekinimas ir suišteklinimas. Postmodernybę charakterizuoja populiariosios ir medijų kultūros išplitimas. Tos kultūros apima ne tik kultūros prekes, bet ir vartojimo būdus, įgūdžius ir jų lavinimą. Pastaruoju metu jos kuria nemirtingumo vaizdiniams bei nuojautoms palankią kultūrinę, intelektinę ir pasaulėvaizdinę terpę, kurioje struktūriškai įsitvirtina genetinis diskursas ir jo nustatomos žmogaus ir jo gyvenamo pasaulio aiškinimo gairės. Svarbus šio diskurso bruožas yra technologinis inžinerinis jo pobūdis, išryškėjęs susiejant nano ir biotechnologijas, kuriomis tikimasi įveikti gyvąją ir negyvąją gamtą skiriančią prarają, iš reikalingų atomų bei molekulių kuriant reikalingų ląstelių dalis ir klonuojant gyvas būtybes. Gyvybė suprekinama ir suišteklinama patentuojant gyvybės elementus – genus ir su jais susijusius procesus. Daroma išvada, jog visi genetikos, informatikos ir kitų mokslų laimėjimai, teikiantys žmogaus gyvenimo ilginimo galimybių, kurios palaiko gundančią nemirtingumo idėją, jau yra persmelkti prekinių santykių, tad ir pats nemirtingumas įmanomas tik kaip prekė. Aptariami kai kurie evoliuciniai ir religiniai techno sapiens sampratos aspektai. Detaliau gvildenamos dvi „nemirtingumo“ versijos: Z. Baumano, kuris nemirtingumo pažadą sieja su kompiuterinės technikos plėtra prasidėjus „Antrajai medijų erai“, ir J. Baudrillard’o, tegiančio, jog klonavimo technologijos „apgręžia“ evoliuciją ir žmogų gundo virusiniu ar vėžiniu belyčiu nemirtingumu.Pagrindiniai žodžiai: genetinis diskursas, klonavimas, medijų kultūra, nanobiotechnologijos, nemirtingumas, suprekinimas.Genetic Discourse in Media Culture: Temptation by Commodified ImmoralityVytautas Rubavičius   SummaryPostmodernity is maintained as a stage of the development of capitalism. The difference between modernity and postmodernity is explained in relation to the new sphere of commodification and resourcification, namely, that of life and of all natural living processes. Postmodern media culture, or popular culture, is peopled by signs of immortality and various kinds of immortals – cyborgs, clones, zombies, immortal human beings and others. Thus, culture accustoms a consumer to immortals and immortality which is concidered as the main goal of a human being and evolution. By nano-bio-technologies and genetic discourse this goal is made scientifically valid, thus reachable. Genetic discourse is becoming the fundamental world-view providing focal landmarks for the emerging future. Media culture supports the spreading of genetic discourse and facilitates its understanding. The temptation by immortality can be considered as a version of modernist ideology of human liberation from various natural, social and heavenly bonds. This liberation, and also secularization, is supported by a scientific genetic technological discourse which is becoming a stimulating factor of postmodern media production. The genetic explanation of the world is particularly handy for technological reflexivity: the entire world is as if encapsulated into human genes, which become the principle explaining the mystery of life, evolution and the future of humanity, thus rendering power to produce the human proper form and the future of people. All the possibilities stemming from the new genetic and biotech discoveries fell under the regulation of property relations by patenting, thus making “immortality” – as a temptation and brand – not only an exeptional commodity, but also a political tool and a commodifying force. As the relationships of private property have penetrated natural biogenetic diversity and, having turned it into a resource, the cognitive subject has reached the goal to secularise the Universe, which he has set for himself: only he as the owner and producer of genes lures people with the eternal shapes of the clones and their genetic information, which will be sustained in any location of the Universe. The temptation by “immortality” will become even stronger when the genetic code is mastered. The future of humanity is related to the mixed forms of life, trans-genic or otherwise genetically modified organisms and techno-human forms that will help to postpone, and later to conquer, death. Even thinkers with religious tendencies perceive the technological improvement of human beings as their evolution towards the techno sapiens and consider such a development as an advancement towards the Kingdom of God. The technologization of human beings is imagined in terms of their divination. Yet in this case the character of contemporary science secularising God and obliterating the perception of divinity is overlooked. Two versions of immortality are analyzed more closely – that of Z. Bauman, who links it with the development of computer technologies, and that of J. Baudrillard, who gives a warning that by cloning technologies humanity is trying to inverse the evolution and to return to the undifferentiated state of cells. The conclusion is drawn that regardless of how we understand ‘immortality,’ argue over its reality or unreality, all possibilities to prolong human life granted by genetics, informatics and other advances in science and technologies, which support the tempting idea of immortality, have already been penetrated by commodity relationships; therefore, “immortality” itself will be available only as a commodity.Keywords: cloning, commodification, genetic discourse, immortality, media culture, nano-bio-technologies.


FIKROTUNA ◽  
2017 ◽  
Vol 3 (1) ◽  
Author(s):  
ABD WARITS

In the history of women's life, the woman has never cracked from the wild cry of helplessness. Woman always become victim of men’s egoism, marginalized, hurt, unfettered, fooled and never appreciated the presence and role. This situation troubles many intellectual Muslims who have perspective that Islam teaches equality, equality for all human beings in the world. The difference in skin color, race, tribe and nation, as well as gender does not cause them to get the status of the different rights and obligations. The potential and the right to life of every human being and the obligation to serve the Lord Almighty is the same. Indeed, all human beings, as caliph in the world, have the same obligation, namely to prosperity of life in the world. No one is allowed to act arbitrarily, destroying, or hurt among others. They are required to live side by side, united, and harmonious, help each other and respect each other. However, that "demand" never becomes a reality. The differences among human identities become a barrier and the cause of divisions. For them, those who are outside environment, different identities are "others" who rightly do not need them "know". The difference of identity has become a reason to allow "hurt" each other. Several intellectual Muslims who recognize the wrong (discrimination against women), and then they attempt to formulate a movement for women's liberation. All the efforts have been done on the basis of awareness that arbitrary action by any person can never be justified. They also realize, that the backwardness of women are "stumbling block" that will lead to the resignation of a civilization. However, this struggle found a lot of challenges; including the consideration of "insubordination" to conquer the power of men, despite it had done by using many strategies. Starting from the writing of scientific book and countless fiction themed women has been published in order to give awareness of equality between men and women. This paper seeks to reexamine the process of the empowerment struggle to give a brand new concept, so that the struggle of women empowerment is not as insubordination and curiosity process in an attempt to conquer the male. Through approach of literature review and observations on the relationship between men and women, the writer finally concluded that the movement of Islamic feminism is not a movement to seize the power of men, but an attempt to liberate women from oppression so that they get the rights of their social role, giving freedom for women to pursue a career as wide as possible like a man, without forgetting a main duty as a mother: to conceive, give birth and breastfeed their children.


Author(s):  
Fen LIN

LANGUAGE NOTE | Document text in Chinese; abstract in English only.In the dominant discourse of the "human–machine relationship," people and machines are the subjects, with a mutually shaping influence. However, this framework neglects the crux of the current critical analysis of AI. It reduces the problems with new technology to the relationship between people and machines, ignoring the re-shaping of the relationship between "people and people" in the era of new technology. This simplification may mislead policy and legal regulations for new technologies. Why would a robot killing cause more panic than a murder committed by a human? Why is a robot's misdiagnosis more troubling than a doctor's? Why do patients assume that machines make more accurate diagnoses than doctors? When a medical accident occurs, who is responsible for the mistakes of an intelligent medical system? In the framework of traditional professionalism, the relationship between doctors and patients, whether trusted or not, is based on the premise that doctors have specialized knowledge that patients do not possess. Therefore, the authority of a doctor is the authority of knowledge. In the age of intelligence, do machines provide information or knowledge? Can this strengthen or weaken the authority of doctors? It is likely that in the age of intelligence, the professionalism, authority and trustworthiness of doctors require a new knowledge base. Therefore, the de-skilling of doctors is not an issue of individual doctors, but demands an update of the knowledge of the entire industry. Recognizing this, policy makers must not focus solely on the use of machines, but take a wider perspective, considering how to promote the development of doctors and coordinate the relationship between doctors with different levels of knowledge development. We often ask, "In the era of intelligence, what defines a human?" This philosophical thinking should be directed toward not only the difference between machines and people as individuals, but also how the relationship between human beings, i.e., the social nature of humans, evolves in different technological environments. In short, this commentary stresses that a "good" machine or an "evil" machine—beyond the sci-fi romance of such discourse—reflects the evolution of the relationships between people. In today's smart age, the critical issue is not the relationship between people and machines. It is how people adjust their relationships with other people as machines become necessary tools in life. In the era of intelligence, therefore, our legislation, policy and ethical discussion should resume their focus on evolutionary relationships between people.DOWNLOAD HISTORY | This article has been downloaded 41 times in Digital Commons before migrating into this platform.


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