Nature Publishing Group : science journals, jobs, and information untitled ASBPA Journal of the American Shore and Beach Preservation Association First published in October, 1933, Shore & Beach is the quarterly, peer-reviewed journal of the American Shore and Beach Preservation Association (ASBPA) dedicated to publishing sound, interesting technical information concerning the shores and beaches of the nation and the world. Its main purpose is to further the goals of ASBPA as affirmed in the mission statement of the organization: “The purpose of the Association is to bring together for cooperation and mutual helpfulness the many agencies, interests and individuals concerned with the protection and proper utilization of these lands, and in all legitimate ways to foster that sound, far-sighted and economical development and preservation of the lands which will aid in placing their benefits within the reach of the largest possible number of people in accordance with the ideals of a democratic nation.”
ActionBioscience - promoting bioscience literacy Fundamental Biosciences Life sciences include disciplines of science that are concerned with the scientific study of life – including microbes, plants, and animals, including humans. Biology is an umbrella term for the natural sciences that study life, with the other life sciences serving as subfields. Also, in the area of Life sciences, we aim to promote the understanding of biodiversity of life and improve bioscience literacy to increase global ecological consciousness and promote bioscience education. Goals and Features of Bioscience on ICWB.com To achieve the beforementioned aims, this section features articles written by scientists, scientific educators and science students on a variety of bioscience-related subjects. The record shows time and again that one person or a small group can awaken the public to the importance of an issue and bring about a startling change in the direction of a society.Hal Mooney. Inspired by the American Institute of Biological Sciences (AIBS)
Bowden Extruder for 3D Printer | Solid Utopia I wanted an extruder that keeps its tension setting when the filament is released and I wanted it to be easy to use and maintain while looking more finished. To do this, I chose a concept that closes around the drive gear and the tension mechanism. The filament is found completely encapsulated in the extruder and protected from external elements. Bowden extruder direct drive MK8 for 1.75mm filament, open view Bowden extruder direct drive MK8 for 1.75mm filament Quick filament change: Quickly release the filament by sliding the clamp forward. Some filament material are softer than others, some require more pressure to extrude, others tend to grind easily. It is sometimes necessary to relieve the filament in order to do maintenance. Clean looking while protecting the filament: The drive gear in fact is reliable enough to stop worrying about its operation and start worrying about its usability and its appearance. Reliable Drive Gear: pushing force = motor torque / (effective diameter * pi)
untitled ACP - Home Como acotar chapa con embuticiones para prensa Lo he visto en el DIN6935 y se trata de acotar la pieza sin desarrollar de tal modo que las cotas representadas permitan calcular la elongacion (V) en funcion de K (desplazamaiento de la linea media) de cada tramo que ha sufrido un doblado, en funcion del radio de curvatura interior y del angulo de doblado (0-90º, 91-165º).A partir de 165º se entiende que no hay desplazamiento de la linea media La pieza se ha de acotar tal y como uno la mediria con un calibre.El ejemplo es el de la norma. 0-90º v=PI*(1-B/180)*(r+s/2*k)-2*(r+s)91-165º v=PI*(1-B/180)*(r+s/2*k)-2*(r+s)*tan((180-B)/2) Siendo: B el angulo de doblado, k el factor de correccion, r el radio de curvatura interior y s el espesor de la chapa. r/s>0,65 k=0,6r/s=1 k=0,7r/s>1,5 k=0,8r/s>2,4 k=0,9r/s>3,8 k=1 Dato curioso:De 0-65º la elongacion puede ser positiva ó negativa (la pieza puede decrecer en longitud)De 65-165º la elongacion es positiva (la pieza plegada se estira) Un libro:
untitled Publications - Journals by Subject Ocean Science (OS) is an international open access journal dedicated to the publication and discussion of research on all aspects of ocean science, experimental, theoretical and laboratory. OS covers the fields ocean physics, ocean chemistry, biological oceanography, air-sea interactions, ocean models (physical, chemical, biological and biochemical), coastal and shelf edge processes, and paleoceanography. Aims & Scope | Editorial Board | Online Library OS | Online Library OSD
6 nuevas ideas de negocios rentables con origen en Estados Unidos. - Negocios1000 Las ideas que hoy presentamos nacieron durante la crisis en Estados Unidos, y en su mayor parte pertenecen a personas que perdieron el empleo y ve vieron obligados a emprender. Otros, sencillamente, vieron la oportunidad de darle forma a ese negocio que llevaban años pensando. A pesar de que algunos de estos negocios son más originales y otros no tienen tanta originalidad, sino que son muy sencillos, algunos requieren de más inversión y otros menos inversión, todas tienen algo en común, y es que a día de hoy (2013), están siendo rentables para sus creadores. 1. Esta tienda (Archie McPhee), vende todo tipo de juguetes tanto para niños como para adultos. (Ver también: 6 fascinantes ideas de negocio con origen en Asia) 2. Bagborroworsteal se dedica exclusivamente al alquiler y venta de bolsos de primeras marcas. 3. Big Picture es una sala de cine de lujo, donde tienes bar de copas, restaurante y espacios para reuniones. 4. 5. 6. Visita nuestra sección de ideas de Negocio:
untitled Journals PLOS publishes seven peer-reviewed open-access journals. The journals vary in their selectivity and contain differing amounts of commentary articles from opinion leaders in a variety of scientific disciplines.The journals are editorially independent. They include PLOS ONE, which publishes all rigorous science across the full range of life and health sciences; the community journals (PLOS Genetics, PLOS Computational Biology, PLOS Pathogens, and PLOS Neglected Tropical Diseases); and our flagship journals, PLOS Medicine and PLOS Biology, highly selective journals publishing fewer than 10% of submissions along with a range of informative and influential non-research content. You can search the journals for specific articles here and you can sign up for e-mail Content Alerts for all our journals here. We encourage authors to consider carefully each journal’s scope before submission in order to minimize delays in the review process. PLOS Biology PLOS Medicine PLOS Computational Biology