Comparison Study of Scrap Tires Management between China and the USA

2014 ◽  
Vol 878 ◽  
pp. 90-98 ◽  
Author(s):  
Nan Hu ◽  
Chun Ming Cheng ◽  
Xue Feng Wen ◽  
Ying Chen ◽  
Hua Long Hu

Total generation amount of scrap tires in China and the U.S. reach 500 million and total weights are about 10 million tons. Management on scrap tires is the common challenges for both countries. In this paper, generation situations, material flows and management policies of the two countries were analyzed and compared. Comparison results show higher possession of private vehicles and higher retreading ratio for commercial trucks in the U.S. results in relatively higher generation amounts (0.3billion units) and relatively lighter weights (4.4 million tons). Management policies on scrap tires in the U.S. are more comprehensive and stricter than those in China. The successful implementation of economic instruments in the U.S provides practical experiences for China to improve material flows and avoid illegally oil refining. In the U.S. co-disposed as an alternative fuel is the main outlet for scrap tires, while in China they are mainly recycled to produce reclaimed rubber.

1990 ◽  
Vol 22 (3-4) ◽  
pp. 49-56
Author(s):  
E. D. Smith ◽  
R. J. Scholze

This paper presents a review of collected experience of one of the U.S. Corps of Engineers research laboratories in the area of small systems for wastewater treatment. Findings and experiences are presented for the use of package plants such as rotating biological contactors (RBCs), and remote site waste treatment at military installations and recreation areas.


2021 ◽  
pp. 000276422110055
Author(s):  
Marçal Sintes-Olivella ◽  
Pere Franch ◽  
Elena Yeste-Piquer ◽  
Klaus Zilles

What is the opinion held by the European press on the U.S. election campaign and the candidates running for president? What are the predominant issues that attract the attention of European print media? Does Europe detest Donald Trump? The objective of the present study is to analyze the perception European commentators had of the 2020 race for the White House. The media, the audience, and European governments were captivated more than ever before by how the U.S. election campaign unfolded, fixing their gaze on the contest between Donald Trump and Joe Biden. Through a combined quantitative and qualitative methodology, a combination of content analysis and the application of framing theory (hitherto scarcely applied to opinion pieces), our research centers on exploring the views, opinions, and analyses published in eight leading newspapers from four European countries (France, Germany, Spain, and the United Kingdom) as expressed in their editorials and opinion articles. This study observes how the televised presidential debates were commented on, interpreted, and assessed by commentators from the eight newspapers we selected. The goal was to identify the common issues and frames that affected European public opinion on the U.S. presidential campaign and the aspirants to the White House.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Matin Pedram

Abstract Competition is building block of any successful economy, while a cartelized economy is against the common good of society. Nowadays, developing artificial intelligence (AI) and its plausibility to foster cartels persuade governments to revitalize their interference in the market and implement new regulations to tackle AI implications. In this sense, as pooling of technologies might enable cartels to impose high prices and violate consumers’ rights, it should be restricted. By contrast, in the libertarian approach, cartels’ impacts are defined by government interference in the market. Accordingly, it is irrational to rely on a monopolized power called government to equilibrate a cartelized market. This article discusses that AI is a part of the market process that should be respected, and a restrictive or protective approach such as the U.S. government Executive Order 13859 is not in line with libertarian thought and can be a ladder to escalate the cartelistic behaviors.


Author(s):  
Satoshi Nakano ◽  
Takao Fujisawa ◽  
Bin Chang ◽  
Yutaka Ito ◽  
Hideki Akeda ◽  
...  

After the introduction of the seven-valent pneumococcal conjugate vaccine, the global spread of multidrug resistant serotype 19A-ST320 strains became a public health concern. In Japan, the main genotype of serotype 19A was ST3111, and the identification rate of ST320 was low. Although the isolates were sporadically detected in both adults and children, their origin remains unknown. Thus, by combining pneumococcal isolates collected in three nationwide pneumococcal surveillance studies conducted in Japan between 2008 and 2020, we analyzed 56 serotype 19A-ST320 isolates along with 931 global isolates, using whole-genome sequencing to uncover the transmission route of the globally distributed clone in Japan. The clone was frequently detected in Okinawa Prefecture, where the U.S. returned to Japan in 1972. Phylogenetic analysis demonstrated that the isolates from Japan were genetically related to those from the U.S.; therefore, the common ancestor may have originated in the U.S. In addition, Bayesian analysis suggested that the time to the most recent common ancestor of the isolates form Japan and the U.S. was approximately the 1990s to 2000, suggesting the possibility that the common ancestor could have already spread in the U.S. before the Taiwan 19F-14 isolate was first identified in a Taiwanese hospital in 1997. The phylogeographical analysis supported the transmission of the clone from the U.S. to Japan, but the analysis could be influenced by sampling bias. These results suggested the possibility that the serotype 19A-ST320 clone had already spread in the U.S. before being imported into Japan.


Pythagoras ◽  
2009 ◽  
Vol 0 (69) ◽  
Author(s):  
Sarah Bansilal

The Common Tasks for Assessment (CTA) was a new assessment programme that was introduced in 2002 in South Africa for all Grade 9 learners. The purpose of this paper is to articulate some concerns around the use of contextualised assessment activities in the CTA. The study reported here was carried out in 2003. Data for the study was generated from lesson observations and interviews with the participant teachers and groups of learners. It is argued that although the intentions behind the design of the CTA are well meaning and noble, there are in fact some learners who may be unintentionally disadvantaged by the design of the CTA which uses an extended context as a source for all the assessment tasks. In this paper two unintended consequences of using ‘real life’ contexts are identified and the implications of these are discussed, by linking the observations to research carried out in the UK and the USA.


Author(s):  
N. Stanley Harding

Tires provide a resource of significant interest to many utilities. Tires—and tire-derived fuel (TDF)—have a high calorific value along with other favorable fuel characteristics. At the same time they present material preparation and handling issues for fuel users. For environmental reasons, they are more difficult and costly to dispose of in landfills. In 1990, only 25 million tires or 11% of the annually generated scrap tires in the U.S. were utilized (recycled, retreaded, and burned for energy). In 1994, this number increased to 138 million tires or 55% of the annually generated scrap tires with the largest increase due to tires used for energy (101 million tires). With an estimated number between 1–3 billion tires in stockpiles throughout the United States, this potential energy source is enormous. This paper will review several commercial demonstrations of tire-derived fuel cofired with coal in industrial and utility furnaces. Included will be discussions on fuel characteristics, preparation and handling of the tire-derived fuel, methods of utilization of the cofired fuel including appropriate combustion systems (e.g., cyclone boilers, stokers, fluidized bed boilers) and environmental results of the cofiring demonstrations.


2021 ◽  
Vol 30 (4) ◽  
pp. 23-44
Author(s):  
Adam Potočňák

The article holistically analyses current strategies for the use and development of nuclear forces of the USA and Russia and analytically reflects their mutual doctrinal interactions. It deals with the conditions under which the U.S. and Russia may opt for using their nuclear weapons and reflects also related issues of modernization and development of their actual nuclear forces. The author argues that both superpowers did not manage to abandon the Cold War logic or avoid erroneous, distorted or exaggerated assumptions about the intentions of the other side. The text concludes with a summary of possible changes and adaptations of the American nuclear strategy under the Biden administration as part of the assumed strategy update expected for 2022.


2019 ◽  
Vol 8 (1) ◽  
pp. 193-196
Author(s):  
Alexander Ivanovich Lyozin

RAND Corporation is a think tank in the USA. It is a corporation in which experts of different fields of science write analytical works devoted to that or other problem. RAND has strong authority in the USA. Many works on Vietnam were done by the state order of the USA (from the Ministry of Defense), including Robert Komers works (conducted by the request of the Defense Advanced Research Projects Agency at the U.S. Department of Defense). It is the research of this expert that is discussed in this paper. The paper looks at the biography of Robert Komer in the context from the conflict in Vietnam to cooperation with the RAND Corporation. In Vietnam, on the personal instructions of the US President Lyndon Johnson, Komer was the head of the program of appeasement or officially: the program of Civil Operations and Revolutionary Development Support (CORDS). Having completed his activities in Vietnam, Komer shared his experience and knowledge in reports for the RAND Corporation. His works are addressed to the problems of the counterpartisan war. The paper describes the work of Robert Komer in the framework of the RAND Corporation. In conclusion, the relevance is emphasized. Due to the events such as the US invasion of Afghanistan and Iraq, Komers activities in the implementation of the CORDS program in Vietnam have gained increased interest from many modern experts.


2020 ◽  
Vol 9 (33) ◽  
pp. 8-16
Author(s):  
Maria Shutova ◽  
Svitlana Mudrynych

The article deals with the concept of “new life” in the inaugural addresses of the U.S. presidents. A political language, as a reflection of people’s behavior in a certain ethnocultural community, is under the consideration. The investigation of political language caused the special approach to the analysis of lexical units that comprise the semantic group “novelty”. Based on this analysis a group of words that have the common sema “new” was singled out. The means of expressions and stylistic devices that presidents used to express the idea of “new life” were determined. The presidents make people believe in their ability to take new actions and change the situation, lead the nation to new, better life. Adjective “new” is often used by the presidents in context of the necessity to revitalize old values, to renew the nation spiritually. Analysis of inaugural address of American presidents showed that ideas of “new life” run through the entire speech of every president. In this article the role of the idea of “new life” in inaugural addresses of American presidents and means of its conveying has been studied. Model of a “new life” can be rather complex, needs more or less strong argumentation. The very word-combination the “better life” predetermines that this life should be different from the existing one, i.e. new. Thus concept of “new life” plays important role in political discourse. Consequently, our research may be understood not only as belonging to a narrow sphere of analysis of political discourse but to wider branch of science – linguistic political science.


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