Pole ladders

We have noted that the function of shamanic initiation in the primitive society is to effect the transformation of the shaman from a profane, human condition to a superhuman, sacred one. But while the shaman may carry out activities such as divining and prophesying, and occasionally sorcery, these are not his major functions, and often fall within the province of other types of practitioners. The shaman s primary functions are those of healer and psychopomp. This is related to the specific nature of the shamanic ecstasy not all forms of mystical ecstasy are shamanic, for this, like initiation, has its own peculiar nature. The shamanic ecstasy is one in which the shaman is supposed to leave his physical body and journey to the Center of the World, which connects the earthly realm with the celestial world above and the infernal regions below. This axis mundi may be symbolized as a tree, mountain, tent pole, ladder, liana, or something similar the shaman is able to make the journey and return safely because he is a master of ecstasy and possesses the guidance of helping spirits along... 

In the pole ladder, all dipoles share their efforts (in a circuit, they are mounted in parallel). 

A particular type of timber ladder is the wooden pole ladder, which is used by many scaffolders. Pole ladders should be suitable for the job by being of the appropriate length and having complete integrity of the steel reinforcement. Prior to use, the ladder should be inspected as outlined earlier in this section and any damage to stiles, rungs or steel reinforcement must be identified as should any unauthorized repairs. 

Outline the main points to be considered when selecting and inspecting a wooden pole ladder prior to use. 

A wooden pole ladder is to be used as a means of access to a scaffold. Outline the features of the ladder that should be considered, and the particular items that should be inspected, in order to ensure its suitability for the job. 

It is important to ensure that ladders are positioned the correct way up. Timber pole ladders often have stiles thicker at the base than at the top, and should have metal tie rods underneath the rungs. AAetal ladders often have rungs with both flat and curved surfaces -the flat surface is the one on which the user s feet should rest. 

General purpose Buttons, sports equipment, medical equipment housings, computer housings, ladders, utility poles... 

The next incremental step up the ladder of complexity of switching was the development [38] of a three-pole supramolecular switch. Such a switch is one that can be adjusted to any one of three different settings. Bolstered by the success and rich electrochemistry of the dual mode switch, a three-pole switch was designed without delay and investigated. 

At the end of this section, one should note, that the quantum mechanical system in a potential cavity of large size may also be described as a system of discrete spectrum states with energies being almost constant and a system of decreasing stationary states for an enlarged "potential box". It is well known that the system of typical "ladder" structures in the spectrum gives rise to resonant states of molecular systems (see e.g. [92,93] and references therein), but the resonant states (the poles of continuation in a complex plane for the resolvent matrix elements) are a special field of Quantum Science and we shall not consider them here (see [5], Sect. XII.6 for discussions, or [55], Sect. 3). 

An interesting method that was developed some years ago combines two processes for waterlogged wood treatment. The first step is freeze-drying in order to obtain dried wood with maximum dimensional stability, and the second step is impregnation of this dried wood by an unsaturated polyester resin. The conservation of a pole used as a ladder excavated from a... 

As we saw in Chapter 17, an initiate must pass through the luminous darkness that surrounds the Pole to achieve a reunion with his own dimension of light. Then he must look vertically upwards from the terrestrial toward the celestial pole. The stairway to heaven is a Jacob s ladder. It leads to the constellation of the Bear, Ursus Major. This same stairway to heaven existed in Dilmun for the Sumerians and Pharaohs of Egypt. 

KKTs are tools brought to network theory by the work of Kramers (1926) and Kronig (1929) on X-ray optics. Just as the reciprocity theorem, they are purely mathematical rules of general validity in any passive, linear, reciprocal network of a minimum phase shift type. By minimum-phase networks, we mean ladder networks that do not have poles in the right half plane of the Wessel diagram. A ladder network is of minimum phase type a bridge where signal can come from more than one ladder is not necessarily of the minimum-phase type. The transforms are only possible when the functions are finite-valued at all frequencies. With impedance Z = R- -jX the transforms are ... 

National Institute for Occupational Safety and Health (NIOSH) records indicate that between 1992 and 2005 falls to lower level, electrocution, highway incidents, and being struck by an object were the leading causes of death in construction. One-third of the fall-related deaths were falls from a roof, 18 percent were falls from scaffolding, and 16 percent were falls from ladders. Electrocutions accounted for 9 percent of the deaths in construction in 2005. The main cause of electrocution for electrical workers was direct contact with energized equipment and wiring, while over half the electrocutions of non-electrical workers were caused by contact with overhead power lines with objects including ladders, poles, and cranes. 

Don t use a ladder as a brace, skid, lever, guy or gin pole, gangway, platform, scaffold, plank, material hoist, or any other use for which it was not intended. 

Applications include electrical buss ducts, side rails for safety ladders, third-rail covers, walkways and structural supports for harsh chemical environments, and resilient items such as fishing rods, bike flag poles, and tent poles. Common profile sections generally fall between 4 in X 6 in and 8 in X 24 in. 

The fourth level is similar to the previous one, except that it allows more than two poles to associate in order to form a chain (serial mounting) or a ladder (parallel mounting) or both. Examples of chains are chemical reactions composed of several steps and reactional intermediates, or conduction processes working by exchange or hopping between several sites. Examples of ladders are multiloops of current (solenoids) in electromagnetism, or magnetic domains in parallel. 

Multipole Several poles of the same nature. They may form a chain (in serial), or ladder (in parallel), which is an extension of the notion of dipole. 

FIGURE 8.4 The four different ways to arrange three poles (npper row) and dipoles (lower row) (a) three-ports circular or tangential, (b) two-ports chain ladder, (c) two-ports ladder chain, and (d) three-ports radial. The first three structures have three poles whereas the fourth one has four poles. 

In practice, it is enough to consider as multipole, a set of identical poles in which all dipoles share a same energy-per-entity. This makes two categories, called chain and ladder, according to the images formed respectively by serial and parallel dipolar components in a circuit. 

The same technique of pole merging can be used for other multipole configurations, chain or ladder, and for the other nodes, even basic quantities and impulses, when it is necessary to distinguish them in the same pole. 

Ensemble of several poles (ma-e than two) of the same energetic nature (i.e., same system constitutive properties, same energy subvariety) having a common gate variable (effort or flow). Poles can be grouped in chains (common flow, i.e., in serial) or in ladders (common effort, i.e., in paralfel) or in a mix of arrangements. 

Climbing Safety Systems Workers climbing fixed ladders or poles need protection from falling. There are patented systems that attach permanently or temporarily to ladders on towers, bridges, antennas, or other equipment. A safety belt or harness worn by a climber connects to the climbing safety device. If a person falls, the device locks and stops the fall. 

To date, the process has penetrated the application areas such as land transport, construction, infrastructure, electrical, marine and offshore, and aerospace. With the introduction of newer technologies, pultrusion can be used to produce nearly any constant cross-sectional shape (Meyer, 1985) such as channels, tubes, beams, bars and many other profiles for handrails, ladders, cable ducts, antennae, rail covers, tent poles, hockey sticks, fishing rods, pipes, slide guides, luggage racks, leaf springs, window frames, farm wagons, bridge sections, roof profiles, etc. 

The highest degree term in the denominator of a mapped BP or BS transfer function is twice that of the original LP transfer function. This means that the s-domain transfer function must have twice as many poles, and the L-C ladder network must correspondingly have twice as many elements (Fig. 4.38). 

Are employees prohibited from using ladders as guys, braces, skids, gin poles, or for other than then-... 

Some other common misuses of ladders are sources for injury as well. Leaning a stepladder against a wall or pole in the same manner as a single or extension ladder is an OSHA violation for good reason. The ladder can easily slide down the resting surface, allowing the worker to fall. Ladders should never be tied together in any manner to obtain additional reach. Another common safety violation exists when ladders are used on top of an aerial lift, scissor lift, truck bed, or other elevated surface or device. It is much more efficient to properly plan and select the correct size ladder for the project. 

The fall protection requirements for aerial lifts are outlined in 1910.67(c)(2). OSHA says that belting off to an adjacent pole, structure, or equipment when working from an aerial lift is not allowed. Workers have to be tied-off to the boom or the basket. Also, workers must always stand firmly on the floor of the basket, and can t sit or climb on the edge of the basket or use planks, ladders, or other devices for a work position. 

---