Electric Vehicle Charging Decisions using Only Market Trends with Persistence

Electric vehicle (EV) charging can take advantage of real-time electricity market price volatility. Presuming that an EV must be fully charged at a future target time, the EV should choose to charge using the lowest future electricity prices and thereby minimize electricity cost. Statistical methods must be used if forward prices are unavailable. In this case, historical prices and trends must be mined to anticipate which prices should be used to charge the EV. Price persistence, a tendency for electricity prices to inexplicably become and remain relatively high or low for extended durations, is particularly difficult to forecast and mitigate. This paper formulates and tests a pragmatic strategy for integrating conventional static statistical prices and the Bayesian propagation of price persistence from the current price to prices in the current and future hours. Simulations were conducted to test the cost effectiveness of charging strategy using real-time electricity prices

Swine manure management systems in Missouri

ENVIRONMENTAL QUALITYNutrients and Bacterial WasteMU GuidePUBLISHED BY MU EXTENSION, UNIVERSITY OF MISSOURI-COLUMBIACharles Fulhage and Donald Pfost, Agricultural Engineering Extension"Livestock manure is a potential source of surface and groundwater contamination. Modern livestock production, confining herds in smaller spaces, has increased problems associated with disposing and making use of manure. Properly handled and used, manure may be an asset; otherwise, it is a liability. Spreading manure on land recycles nutrients and replaces much commercial fertilizer. It increases the fertility and water-holding capacity of the soil and also improves soil tilth, bulk density, infiltration rate and permeability. Collecting, storing, hauling and applying manure to fields generally represents net production costs, but is usually the least-cost system for livestock manure utilization." -- page 1New 3/01/7M; Reviewed November 201

Twenty Years of Desert Development in Egypt

The second of two issues, this volume covers aspects of Egyptian society. Contributors include: Donald Cole, Soraya Altorki, Asef Bayat, Eric Denis, Enid Hill, Ziad Bahaeddin, Malak Rouchdy, Linda Herrera, Jim Napoli, Hussein Amin, Mahmoud al-Lozy, Cynthia Nelson, and Shahnaz Rouse.https://fount.aucegypt.edu/faculty_book_chapters/1985/thumbnail.jp

Farmland Manure Nutrient Loadings: South Dakota Feedlots and Cow-Calf Operations

The estimated annual value of the manure produced by livestock and poultry in the U.S. as fertilizer for farmland is around $2.5 billion. The corresponding value for manure produced in South Dakota is$172 million, which is about 5% of total cash receipts from marketings and government payments to farmers and ranchers in the state in 1992 (Taylor, 1994, p 32). These estimated manure values represent the commercial market value of the elemental nitrogen (N), phosphorus (P), and potassium (K) contained in the manure produced by livestock, as a replacement for synthetic chemical fertilizers that otherwise would be purchased and applied to farmland. Whether these values are realized in practice depends on the quality of management practices followed in handling and disposing of manure. If such management practices are sound, the actual realized values of the manure produced in the U.S. and in South Dakota will approximate the values mentioned in the above paragraph. To the extent that such practices are unsound, however, the actual realized value of manure becomes less. In the extreme, the value could become negative. The potential for negative values is accentuated for geographically concentrated livestock. With concentrated livestock production, environmental concerns can arise in connection with (1) waste run-off from feedlots ( point source pollution ) and (2) nutrients leaching into soil and water from manure in excess of the nutrients required by crops and grasses ( non-point source pollution ). 1 Other things the same, possibilities for both types of pollution are greater if cattle are fed in large feedlots. 2 Point source pollution may increase because of the large amounts of feedlot waste available as potential run-off into ground and surface water sources in the immediate vicinity of large feedlots. Non-point source pollution may increase because the economic disincentives for transporting manure long distances from its point of origin may result in excessively heavy manure applications on farmland close to large feedlots (Freeze and Sommerfeldt, 1985). The results of a study of non-point source pollution for feedlot operations in South Dakota are reported in Taylor (1994).3 In this report, similar results are reported for cow-calf operations in the state.4 Special emphasis is given to comparing livestock manure nutrient loadings for cow-calf operations with those for feedlots. The comparison between cow-calf operations and feedlots is of particular interest because, on the one hand, cattle on feed are more geographically concentrated than cattle on pasture but, on the other hand, fed cattle account for only 8 % and grazing cattle account for as much as 55 % of the total estimated manure produced in the U.S. (OTA, 1990, p 93)

Students as Resources to the Aging Network

In times of shrinking resources and growing needs, the aging network must increase its efforts to involve the voluntary sector in services and programs for the aged. A relatively untapped source of manpower is our nation\u27s 12,300,000 students in 3,200 colleges and universities. This article, based on the findings of a national demonstration project, examines feasible outcomes and practical limitations of service-learning as an approach for increasing the involvement of students in providing services to older persons

Ceratophyllum platyacanthum subsp. oryzetorum (Kom.) Les (Ceratophyllaceae): an addition to the flora of India from Kashmir Himalaya

Ceratophyllum platyacanthum Cham. subsp. oryzetorum (Kom.) Les (Ceratophyllaceae) is recorded for the first time from Kashmir Himalaya and India. The species differs from its closely related taxon, Ceratophyllum demersum, in having smaller leaves and the fruit with a facial spine. A comparison between Ceratophyllum demersum and C. platyacanthum subsp. oryzetorum, and the taxonomic description, photographs and distribution map are provided to facilitate its field identification in the region.

Trends in admissions to Utah State hospital, Provo, Utah July 1,1944- June 30, 1958

"Five hundred and fifty years ago Western culture produced the first institutions calculated to provide relief to society from the inconvenient presence of madmen. nl Prior to May 8, 1951" 'the state or Utah had made very few changes in their laws pertaining to the admission of patients to the state hospital that would indicate a change in the philosophy of the past five hundred and fifty years. Utah's admission laws read quite similar to the laws pertaining to the trial and incarceration of a known criminal. They contain such words as arrest, parole, sheriff, Warrant, district attorney, judges, jurisdiction and many other similar .words which do not seem to be appropriate hospital. terminology. Utah's laws prior to 1951 were also filled with such terms as "idiocy," "imbecility, "feebleness of mind