This document follows the development of a collection development policy addendum for the American Philatelic Research Library's Special Collections and Archives. After a review of the organization's existing collection development polic... R Zirkle 被引量: 0发表: 2013年 The Participatory Finding Aid...
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Skip to main content. Subject guides, course guides, and other useful resources compiled by librarians at Murphy Library. Full list of Databases the library subscribes to, including trial access. Go to A-Z List. libdata.uwlax.edu Research QuickStart: Select a Subject ...
We use them in conjunction with the FastIMU Arduino library.LensesWe recommend fresnel lenses for any DIY VR build, since they are readily available for very low prices on platforms like Amazon and Aliexpress, and are thin and lightweight. Traditional biconvex lenses are wider, heavier (when ...
Some animals can sense the earth's magnetic field (磁场),while humans can't.This magnetic field guides a certain kind of fish when they swim a long way to a place and then back.How can this kind of fish do that?It is still a mystery.Scientists have no good answers ...
Research Progress and Review of Green Infrastructure:Visual Analysis of CiteSpace Based on WOS Database In recent years,global ecological and environmental problems have gradually become prominent,and green infrastructure(GI),as one of the effective measures ... Y Chu,JI Xiang,HE Yukun - 气象与环...