Ferrite cavities

Ferrite cavities are used in synchrotrons and storage rings if the maximum RF frequency is in the order of a few MHz. We present a simple model for describing ferrite cavities. The most important parameters are defined, and the material properties are discussed. Several practical aspects are summarized, and the GSI SIS18 ferrite cavity is presented as an example.Comment: 19 pages, contribution to the CAS - CERN Accelerator School: Specialised Course on RF for Accelerators; 8 - 17 Jun 2010, Ebeltoft, Denmar

Status of the spawning biomass of the Pacific sardine, 1974-75

In order to initiate a fishery for the Pacific sardine, Sardinops sajax caeruleus, it is required that the spawning biomass be determined to have reached a minimum of 20,000 short tons. Data from ichthyoplankton surveys, night-light surveys, the anchovy bait fishery and jack mackerel purse seine fishery are analyzed for evidence of an increase in the population size. The present level of the spawning population of the northern stocks of sardines is determined to be far below the 20,000 tons required to initiate a fishery. (14pp.

Status of the spawning biomass of the Pacific sardine, 1978-79

State law requires that the population of Pacific sardines, Sardinops sagax caeruleus, must reach a minimum spawning biomass of 20,O0O short tons before initiation of a fishery. Data from ichthyoplankton surveys, the anchovy live bait fishery, sea survey cruises, and the jack mackerel purse seine fishery are analyzed for evidence of an increase in population size. Presently, the spawning biomass of the northern stock of sardines remains far below 20,000 tons. (9pp.

Status of the spawning biomass of the Pacific sardine, 1975-1976

In order to initiate a fishery for the Pacific sardine, Sardinops sajax caeruleus, it is required that the spawning biomass be determined to have reached a minimum of 20,000 short tons. Data from ichthyoplankton surveys, night-light surveys, the anchovy bait fishery, and jack mackerel purse seine fishery are analyzed for evidence of an increase in population size. The present level of the spawning population of the northern stocks of sardines is determined to be far below the 20,000 tons required to initiate a fishery. (11pp.

Status of the spawning biomass of the Pacific sardine, 1980-81

State law requires that the population of Pacific sardines, Sardinops sagax caeruleus, must reach a minimum spawning biomass of 20,000 short tons before initiation of a fishery. Data from ichthyoplankton surveys, the anchovy live bait fishery, sea survey cruises, and the mackerel purse seine fishery are analyzed for evidence of an increase in population size. Presently, the spawning biomass of the northern stock of sardines remains far below 20,000 tons. (9pp.

Status of the spawning biomass of the Pacific sardine, 1983-84

State law provides for the initiation of a fishery for Pacific sardines, Sardinops sagax caeruleus, when the spawning biomass of sardines reaches 20,000 short tons. Data from ichthyoplankton surveys, sea survey cruises, the mackerel fishery sampling program, and the live-bait fishery monitoring program are discussed with regard to an increase in population size. It appears that the spawning biomass of the northern stock of Pacific sardines remains below 20,000 tons. Legislation passed in 1983 which affects the incidental take and commercial use of sardines is also discussed. (9pp.

Effect of a Distributed Heat Source on Melt Pool Geometry and Microstructure in Beam-Based Solid Freeform Fabrication

The ability to control geometric and mechanical properties of parts fabricated using laser-based manufacturing processes requires an understanding and control of melt pool geometry and microstructure. With the development of electron beam manufacturing or future beam-based deposition processes, the user may have more control over the distribution of incident energy, so that beam width becomes a potential process variable. As such, the focus of this work is the effect of a distributed heat source on melt pool geometry (length and depth) and the thermal conditions controlling microstructure (cooling rates and thermal gradients) in beam-based solid freeform fabrication. Previous work by the authors has employed the Rosenthal solution for a moving point heat source to determine the effects of process variables (laser power and velocity) on solidification cooling rates and thermal gradients controlling microstructure (grain size and morphology) in laser-deposited materials. Through numerical superposition of the Rosenthal solution, the current work extends the approach to include the effects of a distributed heat source for both 2-D thinwall and bulky 3-D geometries. Results suggest that intentional variations in beam width could potentially enable significant changes in melt pool geometry without affecting microstructure.Mechanical Engineerin

Background Characters in the Old Testament

https://digitalcommons.andrews.edu/books/1189/thumbnail.jp

Rest in Christ: Adult Sabbath School Bible Study Guide: Teacher\u27s Edition

https://digitalcommons.andrews.edu/books/1187/thumbnail.jp

“My Heart Falters, Fear Makes Me Tremble” (Isaiah 21:4 NIV): Emotions and Prophetic Writings in the Bible

Emotions are an intricate part of what it means to be human. They are part of complex coping mechanisms installed by a Creator God whose own emotions are reflected in humanity’s creation in the imago Dei, the “image of God” (Gen. 1:27).1 Joy, exuberance, anticipation, pleasure, delight, and happiness, must have all been part of God’s original make-up of humanity, for they characterize our existence today. We also experience, however, anger, sadness, sorrow, fear, depression, dejection, misery, and fury—emotions that became part of our emotive repertoire following the Fall in Genesis 3.2 Unfortunately, we have traditionally ignored the study of emotions in biblical research. As Paul Kruger puts it, “Emotions were for a long time regarded as part of the irrational, uncontrollable, and subjective aspects of humankind that do not justify serious study.”3 And yet, emotions are well worth a closer look. For, ultimately, they tell us about who we are, who God is, and how He deals with us. Let us take a look at this little-explored field of emotions by focusing on a special group of individuals, namely biblical prophets. We will use the biblical text and also incorporate insights from cross-cultural psychology and the cognitive sciences as we explore the emotional world of biblical prophets. [Quotation from article