9,877 research outputs found
Recommended from our members
The ARM Mobile Facility and its first international deployment: measuring radiative flux divergence in West Africa
Electromagnetic Gauge Invariance of the Cloudy Bag Model
We examine the question of the gauge invariance of electromagnetic form
factors calculated within the cloudy bag model. One of the assumptions of the
model is that electromagnetic form factors are most accurately evaluated in the
Breit frame. This feature is used to show that gauge invariance is respected in
this frame.Comment: 8 pages, RevTex, 1 figure, to be published in Phys. Rev.
Circular 69
LIST OF FIGURES -- LIST OF TABLES -- PREFACE -- CHAPTER 1— BACKGROUND & OVERVIEW: Alaska’s Native Lands: Alaska Native Claims Settlement Act Lands: Regional Corporations, Village Corporations, Additional ANCSA Land Entitlements, Former Native Reserve Lands; Other Native Lands: Native Allotments, Annette Island Reservation; Native Land Status; Alaskan Forests; What is a Forest Inventory?; Forest Inventories in Alaska; Forest Inventories on Native Land -- CHAPTER 2 — DETERMINING THE NEED FOR AN INVENTORY: Existing Forest Inventory Information; Agency Inventories: Forest Service Inventories, Bureau of Indian Affairs Inventories, Tanana Chiefs Conference Inventories; Level of Inventory -- CHAPTER 3 — INVENTORY PLANNING: Gathering Information; Planning Considerations: Why is This Inventory Needed?, Where will the Inventory Take Place?, What needs to be Inventoried and What Information is to be Collected?, Who is Going to do the Inventory?, When will the Inventory Take Place?, How is the Inventory going to be Done and How will the Data be Processed?, How Much is the Inventory going to Cost?, Unique Alaskan Constraints: Transportation Logistics, Adverse Weather, Musket, Dangerous Wildlife, Vegetation Barriers, Availability of Supplies and Fuel; Advantages of Planning -- CHAPTER 4 — HOW FOREST INVENTORIES ARE CONDUCTED: Maps and Aerial Photographs: Using Aerial Photographs in Forest Inventories, Using Aerial Photographs for Timber Typing; Statistical Considerations of a Forest Inventory: Variability of the Sample, Number of Samples, Sampling Design; Field Measurements: Tree Height, Tree Diameter and Taper, Tree Defects, Tree Age and Growth, Site Conditions, Forestry Equipment -- CHAPTER 5 — AFTER THE FIELD WORK IS DONE: Compilation of Data; When the Inventory is Complete; Looking Toward the Future -- BIBLIOGRAPHY -- APPENDIX I - ALASKA’S PRINCIPAL TREE SPECIES -- APPENDIX II — USES OF ALASKA'S
PRINCIPAL TREE SPECIES -- APPENDIX III — FORESTY CONSULTANTS
IN ALASKA -- APPENDIX IV — TECHNICAL ASSISTANCE DIRECTORY -- APPENDIX V — SAMPLE OUTLINE FOR
DEVELOPING A FOREST
INVENTORY PLAN -- APPENDIX VI — USGS OFFICES IN ALASKA -- APPENDIX VII — NATURAL RESOURCES
SCHOOLS IN ALASK
Qualitative measurements of occupant comfort in five U.S. schools
The United States Environmental Protection Agency (EPA) performed indoor air quality studies in five U.S. schools during energy retrofits during 1997-98. Four EPA reports and three Environmental Health and Engineering, Inc. (EH&E) reports illustrated the indoor environmental quality before and after heating, ventilation, and air-conditioning (HVAC) retrofits at specific elementary schools in Texas, Colorado, Minnesota, New Jersey, and California. Selected comfort, environmental, physical, and occupant response data were collected in randomly selected areas over a one–week, five–school day monitoring period for each of these schools.
The EPA studied indoor air quality (IAQ) and occupant comfort using an EPA Indoor Environmental Quality Survey. The questionnaire asked the building occupants at the schools about how they thought their building environment and work affected them. Within in the school building studies, the EPA measured sound, indoor temperature, relative humidity, continuous light, airborne particle concentrations, individual volatile organic compounds (VOC’s), formaldehyde, particulates, bacteria and fungi, radon, carbon monoxide, and carbon dioxide. Selected comfort, environmental, and physical data were collected in selected areas over a three contiguous school day monitoring period. A baseline and follow-up study was conducted for each school. Survey information possibly suggests that occupant comfort improved after HVAC retrofits, albeit the findings are inconclusive.
The focus of the paper was to determine if occupant comfort improved, decreased, or remained neutral after energy retrofits in the five U. S. schools. Selected measurement data and applicable questionnaire data was summarized for each school and then compared between the pre-study and the post study years
Strongly non embeddable metric spaces
Enflo constructed a countable metric space that may not be uniformly embedded
into any metric space of positive generalized roundness. Dranishnikov, Gong,
Lafforgue and Yu modified Enflo's example to construct a locally finite metric
space that may not be coarsely embedded into any Hilbert space. In this paper
we meld these two examples into one simpler construction. The outcome is a
locally finite metric space which is strongly non
embeddable in the sense that it may not be embedded uniformly or coarsely into
any metric space of non zero generalized roundness. Moreover, we show that both
types of embedding may be obstructed by a common recursive principle. It
follows from our construction that any metric space which is Lipschitz
universal for all locally finite metric spaces may not be embedded uniformly or
coarsely into any metric space of non zero generalized roundness. Our
construction is then adapted to show that the group
admits a Cayley graph which
may not be coarsely embedded into any metric space of non zero generalized
roundness. Finally, for each and each locally finite metric space
, we prove the existence of a Lipschitz injection .Comment: 10 page
Baseline, Bright-line, Best Interests: A Pragmatic Approach for California to Provide Certainty in Determining Parentage
Study of Lattice QCD Form Factors Using the Extended Gari-Krumpelmann Model
We explore the suitability of a modern vector meson dominance (VMD) model as
a method for chiral extrapolation of nucleon electromagnetic form factor
simulations in lattice QCD. It is found that the VMD fits to experimental data
can be readily generalized to describe the lattice simulations. However, the
converse is not true. That is, the VMD form is unsuitable as a method of
extrapolation of lattice simulations at large quark mass to the physical
regime.Comment: 14 pages, 5 figure
Spontaneous dressed-state polarization in the strong driving regime of cavity QED
We utilize high-bandwidth phase quadrature homodyne measurement of the light
transmitted through a Fabry-Perot cavity, driven strongly and on resonance, to
detect excess phase noise induced by a single intracavity atom. We analyze the
correlation properties and driving-strength dependence of the atom-induced
phase noise to establish that it corresponds to the long-predicted phenomenon
of spontaneous dressed-state polarization. Our experiment thus provides a
demonstration of cavity quantum electrodynamics in the strong driving regime,
in which one atom interacts strongly with a many-photon cavity field to produce
novel quantum stochastic behavior.Comment: 4 pages, 4 color figure
- …