Author: Claude E. DelislePublisher:
ISBN:
Category :
Languages : fr
Pages :
Book Description
Evolution dans le temps et dans l'espace de la qualite ́de la neige useé et de l'eau de ruissellement de pluie du territoire de la ville de Montreál
Author: Claude E. DelisleRoad Salts
Author: Canada. Environment CanadaPublisher:
ISBN:
Category : Science
Languages : en
Pages : 186
Book Description
Road salts are used as de- & anti-icing chemicals for winter road maintenance, and enter the Canadian environment through their storage & use and through disposal of snow cleared from roadways. This report summarizes the information critical to the assessment of these salts (including chlorides of sodium, calcium, potassium, & magnesium, as well as ferrocyanide salts added as anti-caking agents) as toxic. Information is included on their identity, properties, production, and sources; road salt loadings as determined from surveys; roadway snow disposal; releases of salts from patrol yards; environmental fate & pathways; and chloride concentrations in surface waters across Canada. The report concludes with an assessment under the Canadian Environmental Protection Act regarding toxicity & environmental impact of road salts on groundwater, aquatic ecosystems, soils, terrestrial vegetation, and terrestrial wildlife. A separate section characterizes the environmental exposure, effects, & risk of ferrocyanides.
Reṕercussions ećologiques des dev́ersements de la neige useé dans le fleuve Saint-Laurent au niveau du pont de la Concorde et des quais 30 et 52 dans le port de Montreál
Author: El Niño
Author: Bruno VoituriezPublisher: UNESCO
ISBN:
Category : Science
Languages : en
Pages : 132
Book Description
El Nino, caprice of the heavens, scapegoat for every calamity? The general public cannot really understand what is behind the El Nino phenomenon. The book offers a tour of the Earth's climate to understand one of its normal but extreme components.
Boundary-Layer Theory
Author: Hermann Schlichting (Deceased)Publisher: Springer
ISBN: 366252919X
Category : Technology & Engineering
Languages : en
Pages : 814
Book Description
This new edition of the near-legendary textbook by Schlichting and revised by Gersten presents a comprehensive overview of boundary-layer theory and its application to all areas of fluid mechanics, with particular emphasis on the flow past bodies (e.g. aircraft aerodynamics). The new edition features an updated reference list and over 100 additional changes throughout the book, reflecting the latest advances on the subject.
The Last Billion Years
Author: Atlantic Geoscience SocietyPublisher: Nimbus Publishing (CN)
ISBN:
Category : History
Languages : en
Pages : 220
Book Description
This book is about the history of the rocks and fossils of the Maritime Provinces of Canada (New Brunswick, Nova Scotia and PEI) over the last billion years. The book is beautifully illustrated in full colour, with original paintings of ancient vistas, over 150 photographs, and crisp explanatory diagrams and sketches.
Metamorphoses
Author: Emanuele CocciaPublisher: John Wiley & Sons
ISBN: 1509545689
Category : Philosophy
Languages : en
Pages : 180
Book Description
We are all fascinated by the mystery of metamorphosis – of the caterpillar that transforms itself into a butterfly. Their bodies have almost nothing in common. They don’t share the same world: one crawls on the ground and the other flutters its wings in the air. And yet they are one and the same life. Emanuele Coccia argues that metamorphosis – the phenomenon that allows the same life to subsist in disparate bodies – is the relationship that binds all species together and unites the living with the non-living. Bacteria, viruses, fungi, plants, animals: they are all one and the same life. Each species, including the human species, is the metamorphosis of all those that preceded it – the same life, cobbling together a new body and a new form in order to exist differently. And there is no opposition between the living and the non-living: life is always the reincarnation of the non-living, a carnival of the telluric substance of a planet – the Earth – that continually draws new faces and new ways of being out of even the smallest particle of its disparate body. By highlighting what joins humans together with other forms of life, Coccia’s brilliant reflection on metamorphosis encourages us to abandon our view of the human species as static and independent and to recognize instead that we are part of a much larger and interconnected form of life.
Sap-sugar Content of Grafted Sugar Maple Trees
Author: Maurice E. DemerittPublisher:
ISBN:
Category : Sugar-maple
Languages : en
Pages : 8
Book Description
Grass Productivity: An Introduction to Rational Grazing
Author: Dr. Robert C. WorstellPublisher: Lulu.com
ISBN: 1312832843
Category : Business & Economics
Languages : en
Pages : 503
Book Description
SIMPLE questions often help us to understand problems better; and I think it indispensable, at the beginning of this work, to ask a question which appears simple in the extreme: "What is grazing?" The answer is generally as follows: "Causing grass to be eaten by an animal." That is correct! But here is another answer which, to my mind, is more realistic: "Causing the grass and the animal to meet." Since this book is almost exclusively concerned with grazing by cattle, I propose the following definition to the reader, requesting him to allow it to become well impressed upon his mind: Grazing is the meeting of cow and grass. It is by satisfying as far as possible the demands of both parties that we will arrive at a rational grazing, which will provide us with maximum productivity on the part of the grass while at the same time allowing the cow to give optimum performance. [From the Introduction]
The Problems of the Arid Zone
Author: UnescoPublisher: paris
ISBN:
Category : Science
Languages : en
Pages : 510
Book Description