scholarly journals EXPERIMENTAL STUDY ON THE EFFECTS OF THE OFFSHORE NOURISHMENT USING THE COASER SANDS WITH THE CROSS-SHORE SEASONAL CHANGE

2012 ◽  
Vol 1 (33) ◽  
pp. 38
Author(s):  
Yoko Shibutani ◽  
Yuhei Matsubara ◽  
Masamitsu Kuroiwa ◽  
Noriko Yao

In recent decades, beach erosions have become severe at sandy beach in the world. The coarser sand nourishment has been noticed in Japan because of the stabilization of the beach coast. However the performance is not clear. Therefore in this study, laboratory experiments were conducted for the beach nourishment using the coarser sand. Through of this experiment, the effect of the coarser sand nourishment was investigated.

2015 ◽  
Vol 72 (3) ◽  
pp. 371-376 ◽  
Author(s):  
C. K. Groot ◽  
W. B. P. van den Broek ◽  
J. Loewenberg ◽  
N. Koeman-Stein ◽  
M. Heidekamp ◽  
...  

For chemical industries, fresh water availability is a pre-requisite for sustainable operation. However, in many delta areas around the world, fresh water is scarce. Therefore, the E4Water project (www.e4water.eu) comprises a case study at the Dow site in Terneuzen, The Netherlands, which is designed to develop commercial applications for mild desalination of brackish raw water streams from various origins to enable reuse in industry or agriculture. This study describes an effective two-stage work process, which was used to narrow down a broad spectrum of desalination technologies to a selection of the most promising techniques for a demonstration pilot at 2–4 m³/hour. Through literature study, laboratory experiments and multi-criteria analysis, nanofiltration and electrodialysis reversal were selected, both having the potential to attain the objectives of E4Water at full scale.


Author(s):  
Hyun Dong Kim ◽  
Shin-ichi Aoki ◽  
Nobuhisa Kobayashi ◽  
Susumu Onaka

When erosion occurs, sandy beach cannot maintain the sufficient sand width and the foreshore slope becomes steeper by the frequent erosion effect. As a result, the beach is trapped in a vicious circle of becoming vulnerable by the incident waves. In order to repair or protect the erosive beach, beach nourishment can be used as a countermeasure while minimizing the environmental impacts. However, beach nourishment is not a permanent solution and requires periodic renourishment after several years. To alleviate such problem, minimizing the period of renourishment must be an economical alternative. In that respect, selecting the optimum grain size of the sand for the beach nourishment is very important. Generally, larger grain sized sand is more resistant to the erosion, thus extending the period of renourishment. In addition to selecting the optimum grain size of the sand nourishment, determining the durability as well as maintaining the familiarity of the users of the native sand should be considered.


Author(s):  
Roy Livermore

Despite the dumbing-down of education in recent years, it would be unusual to find a ten-year-old who could not name the major continents on a map of the world. Yet how many adults have the faintest idea of the structures that exist within the Earth? Understandably, knowledge is limited by the fact that the Earth’s interior is less accessible than the surface of Pluto, mapped in 2016 by the NASA New Horizons spacecraft. Indeed, Pluto, 7.5 billion kilometres from Earth, was discovered six years earlier than the similar-sized inner core of our planet. Fortunately, modern seismic techniques enable us to image the mantle right down to the core, while laboratory experiments simulating the pressures and temperatures at great depth, combined with computer modelling of mantle convection, help identify its mineral and chemical composition. The results are providing the most rapid advances in our understanding of how this planet works since the great revolution of the 1960s.


Author(s):  
David K. Skelly

This chapter presents two examples to demonstrate that natural history is the necessary basis of any reliable understanding of the world. More than a half century ago, Rachel Carson revolutionized the public’s view of pesticides. The foundation of her success was the careful use of natural history data, collated from across North America. The examples she assembled left little doubt that DDT and other pesticides were causing a widespread decline in birds. More recently, the case for the impact of atrazine on wildlife was based on laboratory experiments, without the advantage of natural history observations. For atrazine, natural history observations now suggest that other chemical agents are more likely to be responsible for feminization of wildlife populations. Developing expectations for scientists to collect natural history information can help to avoid over-extrapolating lab results to wild populations, a tendency often seen when those lab results conform to preconceptions about chemicals in the environment.


2021 ◽  
pp. 095394682110313
Author(s):  
Nancy J. Duff

This article argues that an apocalyptic interpretation of divine revelation provides the theological foundation for discerning the appropriate space for human life to thrive. This apocalyptic theological ethic is contrasted with that of end-time Christians who have supported Donald Trump as God’s chosen one and who joined the storming of the US Capitol on 6 January 2021. It contrasts five features of apocalyptic thinking for both groups: (1) expectation of the end of the world, (2) ethics, (3) Christ, nation, and the first commandment (4) Christians and Jews, and (5) the cross. While the article seeks to give a fair description of the beliefs of end-time Christians, it argues that their beliefs have taken a heretical and dangerous turn.


Author(s):  
Mengrou Lv ◽  
Lianhong Zhang ◽  
Baiyan He ◽  
Feiping Zhao ◽  
Senlin Li ◽  
...  

2021 ◽  
pp. 002216782110086
Author(s):  
Dennis Leroy Kangalee ◽  
Eric Greene ◽  
Nisha Gupta

In this edited interview, psychologists Eric Greene and Nisha Gupta interview filmmaker Dennis Leroy Kangalee about his film As an Act of Protest (2002), which is about a young African American actor named Cairo Medina who goes through a station-of-the-cross journey to find the meaning of his life and eradicate the racism and police brutality that continue to plague the world. In this conversation, Dennis shares the genesis of the film as a response to the police brutality occurring in New York in the late 1990s, the psychological struggles he experienced while making this film and enduring backlash to it, and his desire to convey raw emotional truths about the ugliness of racism and racial trauma through a style of radically honest filmmaking that can foster catharsis, reflection, and transformation.


2012 ◽  
Vol 518-523 ◽  
pp. 4819-4822
Author(s):  
Jin Feng Liu ◽  
Shun Yang ◽  
Guo Qiang Ou

The deposition prediction of debris flow hazardous area is very important for organizing and implementing debris flow disaster prevention and reduction. This paper selected the data base from laboratory experiments and applied the multiple regression statistical method to establish a series of empirical calculation models for delimiting the debris flow hazardous areas on the alluvial fan. The empirical models for predicting the maximum deposition length (Lc), the maximum deposition width (Bmax) and the maximum deposition thichness (Z0) under the condition of different debris flow volumes (V), densities (rm) and slopes of accumulation area (θd) were establised. And the verification results indicated that the established models can predict the debris flow hazards area with the average accuracy of 86%.


1914 ◽  
Vol 7 (4) ◽  
pp. 538-594
Author(s):  
Benjamin B. Warfield

In a recent number of The Harvard Theological Review, Professor Douglas Clyde Macintosh of the Yale Divinity School outlines in a very interesting manner the religious system to which he gives his adherence. For “substance of doctrine” (to use a form of speech formerly quite familiar at New Haven) this religious system does not differ markedly from what is usually taught in the circles of the so-called “Liberal Theology.” Professor Macintosh has, however, his own way of construing and phrasing the common “Liberal” teaching; and his own way of construing and phrasing it presents a number of features which invite comment. It is tempting to turn aside to enumerate some of these, and perhaps to offer some remarks upon them. As we must make a selection, however, it seems best to confine ourselves to what appears on the face of it to be the most remarkable thing in Professor Macintosh's representations. This is his disposition to retain for his religious system the historical name of Christianity, although it utterly repudiates the cross of Christ, and in fact feels itself (in case of need) quite able to get along without even the person of Christ. A “new Christianity,” he is willing, to be sure, to allow that it is—a “new Christianity for which the world is waiting”; and as such he is perhaps something more than willing to separate it from what he varyingly speaks of as “the older Christianity,” “actual Christianity,” “historic Christianity,” “actual, historical Christianity.” He strenuously claims for it, nevertheless, the right to call itself by the name of “Christianity.”


Sign in / Sign up

Export Citation Format

Share Document