Load profile

In electrical engineering, a load profile is a graph of the variation in the electrical load versus time. A load profile will vary according to customer type (typical examples include residential, commercial and industrial), temperature and holiday seasons. Power producers use this information to plan how much electricity they will need to make available at any given time. Teletraffic engineering uses a similar load curve.

Power generation

In a power system, a load curve or load profile is a chart illustrating the variation in demand/electrical load over a specific time. Generation companies use this information to plan how much power they will need to generate at any given time. A load duration curve is similar to a load curve. The information is the same but is presented in a different form. These curves are useful in the selection of generator units for supplying electricity.

Electricity distribution

In an electricity distribution network, the load profile of electricity usage is important to the efficiency and reliability of power transmission. The power transformer or battery-to-grid are critical aspects of power distribution and sizing and modelling of batteries or transformers depends on the load profile. The factory specification of transformers for the optimization of load losses versus no-load losses is dependent directly on the characteristics of the load profile that the transformer is expected to be subjected to. This includes such characteristics as average load factor, diversity factor, utilization factor, and demand factor, which can all be calculated based on a given load profile.

Load

Load may refer to:

Biology and medicine

Music

Truss (unit)

A truss is a tight bundle of hay or straw. It would usually be cuboid, for storage or shipping, and would either be harvested into such bundles or cut from a large rick.

Markets and law

Hay and straw were important commodities in the pre-industrial era. Hay was required as fodder for animals, especially horses, and straw was used for a variety of purposes including bedding. In London, there were established markets for hay at Smithfield, Whitechapel and by the village of Charing, which is still now called the Haymarket. The weight of trusses was regulated by law and statutes were passed in the reigns of William and Mary, George II and George III. The latter act of 1796 established the weights as follows:

In summary then, the standard weights of a truss were:

and 36 trusses made up a load.

Trussing

A detailed description was provided in British Husbandry, sponsored by the Society for the Diffusion of Useful Knowledge,

This done, he measures the cut to be made in the stack, which is decided by the usual size of the trusses — each being as nearly as possible three feet by two and a half, and thick in proportion to the fineness and closeness of the hay; those of the best quality being the thinnest. He then mounts the ladder and cuts perpendicularly through the thatch, as far down as will produce the requisite number of trusses. This he does with a very strong and sharp knife, about thirty inches in length by nearly six in breadth of the blade, and formed as in fig. 2. The handle is however often made short and straight from the blade, but the form above represented allows of more power being exerted by the workman in cutting through the stack, and it is an operation which demands considerable strength.

Load (unit)

The load (Latin: carrus, lit. "cartload"), also known as a fodder, fother, and charrus, was an English unit of weight or mass of various amounts, depending on the era and the substance being measured.

Lead load

The load of lead was 30 fotmals, 175 stone, or 2,100 Merchant pounds (~918.525 kg).

"The Load of Lead doth consist of Thirty Fotmals, and every Fotmal containeth Six Stone, except Two Pound; and every Stone doth consist of Twelve Pound, and every Pound consisteth of the Weight of 25 Shillings,5 whereby the Sum in the Fotmal is Seventy Pound. But the Sum of the Stones in the Load is Eight Times Twenty and Fifteen, and it is proved by Six Times Thirty which is Nine Times Twenty. But of every Fotmal there are abated Two Pound in the foresaid Multiplication, which are Sixty, which make Five Stone. And so there are in the Load Eight Times Twenty and Fifteen as is aforesaid." - Tractatus de Ponderibus et Mensuris

Straw load

The load of hay or straw was 36 trusses or 1,296 pounds (now about 587.8557 kg).

Shape

A shape is the form of an object or its external boundary, outline, or external surface, as opposed to other properties such as color, texture, or material composition.

Psychologists have theorized that humans mentally break down images into simple geometric shapes called geons. Examples of geons include cones and spheres.

Classification of simple shapes

Some simple shapes can be put into broad categories. For instance, polygons are classified according to their number of edges as triangles, quadrilaterals, pentagons, etc. Each of these is divided into smaller categories; triangles can be equilateral, isosceles, obtuse, acute, scalene, etc. while quadrilaterals can be rectangles, rhombi, trapezoids, squares, etc.

Other common shapes are points, lines, planes, and conic sections such as ellipses, circles, and parabolas.

Among the most common 3-dimensional shapes are polyhedra, which are shapes with flat faces; ellipsoids, which are egg-shaped or sphere-shaped objects; cylinders; and cones.

Shape (comics)

Shape is a Marvel comics comic book character created by Mark Gruenwald.

Squadron Supreme

Fictional character biography

The Shape (real name Raleigh Lund) was born in Simak, Lowengard, in the U.S.A. of the alternate Earth of the Squadron Supreme, Earth-712. Although he appears to be an adult male, his emotional and intellectual development is comparable to that of a child (it's likely that he has some kind of mental disability).

Originally, he was a member of the criminal Institute of Evil, the Squadron's arch-foes, although, lacking sincere criminal intent, he was mostly following the lead of team leader Ape-X, who had been his friend "for years and years." After the Institute of Evil lost a battle against the Squadron, all of the Institute's members underwent behavior modification, their criminal records were pardoned, and they all joined the Squadron. Now, as a public crusader and adventurer, Shape helped supervise the manufacturing of force field belts. He also helped his fellow superheroes and babysat for Arcanna Jones' three children, becoming especially close with Drusilla Jones. Eventually the behavior modification was reversed by the Squadron's opponents the Redeemers, but the Shape, having never been a criminal at heart in the first place, still chose to side with the Squadron against Nighthawk and the Redeemers. After the battle, Shape helped get the pregnant Arcanna to the delivery room after she collapsed.

Shape (magazine)

Shape Magazine (or Shape) is a monthly English language fitness magazine started by Weider Publications in 1981, founded by Christine MacIntyre (a pioneer in women's free weight fitness) and became the #1 women's fitness magazine. At that time, Weider Enterprises consisted primarily of the bodybuilding magazine Muscle & Fitness. Joe Weider and Christine MacIntyre had differing views of how to present Shape magazine, Weider endorsing a less journalistic and more commercial approach to articles, MacIntyre endorsing a more academic, doctor-based magazine. Weider also endorsed a sexier approach to editorial while MacIntyre endorsed a healthier look for women, eschewing sexiness in the models and the copy. MacIntyre largely won that battle, editing a magazine that required that every byline have an advanced medical degree, that cover models should look healthy rather than sexy, and that sexist language be avoided. Christine MacIntyre was the editor-in-chief until her death in 1988. Tara Kraft is the current editor-in-chief. Shape found a readership based on that formula.