This machine Is the first series arc machine installed
In the city of Portland. It was obtained by
the Electrical Department of O.A.C., with the object
of rewinding it for a high current machine to be used
in the charging of storage batteries.
Woody knotweeds are listed as noxious weeds throughout most of the United States. This publication briefly describes the characteristics and biology of four species of woody knotweeds and summarizes management and control options. Intended for home gardeners and small-acreage landowners.
This publication provides a framework, general recommendations, and rationales to aid onion growers interested in maximizing their land use and crop yield through drip irrigation.
This publication provides a framework, general recommendations, and rationales to aid hybrid poplar growers interested in maximizing their land use and wood production through drip irrigation.
Histones, as part of nucleosomes, are responsible for DNA packaging in chromosomes. They also affect DNA expression by a multitude of post-translational modifications, especially prevalent on the amino terminus of histones. Co-activator protein complexes “write”, “read”, or “erase” histone modifications, and in balance determine which sections of DNA are free...
This publication discusses the use of granular matrix sensors (GMS) for monitoring soil moisture content. It explains how to install GMS and use the recorded data for irrigation scheduling.
Explica el uso de los sensores matriciales granulares para la medición de la tensión de humedad del suelo. Explica cómo instalar estos sensores y cómo usar los datos registrados para la programación del riego. (Discusses the use of granular matrix sensors (GMS) for monitoring soil moisture content . Explains how...
This nutrient management guide is designed to assist onion growers and crop advisors in producing a high-quality crop while protecting the environment from excess nutrients. Nutrient management strategies recommended here are based on data accumulated over many growing seasons with many different onion varieties in Idaho, Washington, and Oregon. This...
The isotopic composition of water vapour provides integrated perspectives on the hydrological histories of air masses and has been widely used for tracing physical processes in hydrological and climatic studies. Over the last two decades, the infrared laser spectroscopy technique has been used to measure the isotopic composition of water...