Parks and park engineering, by William T. Lyle ...

Lyle, William T.

doi:10.5962/bhl.title.19819

Cited by 6 publications

(11 citation statements)

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“…In terms of an engineering efficiency curve, pump efficiency is specified to fall on the right side of the curve -that is, as water is pumped and the aquifer begins declining, well pump efficiency will actually increase for a period, reach a maximum, and then begin to decrease. Thus, if initial pump efficiency is 75 percent, the efficiency will increase into the 80 percent range and then begin to decline [10].…”

Section: Calculates the Present Value Of Netmentioning

confidence: 99%

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Implication of Improved Irrigation Pumping Efficiency for Farmer Profit and Energy Use

Hardin

Lacewell

1979

J. Agric. Appl. Econ.

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Irrigated crop production on the Texas High Plains accounts for more than 80 percent of the value of total crop production in the region. Total economic activity associated with crop production was estimated to be $2.18 billion in 1967 [11]. Because of the importance and contribution of irrigation to the regional economy, any significant adjustments in irrigation create repercussions throughout the region.The price of natural gas within Texas is not subject to interstate regulations. Since 1973, dramatic increases in natural gas price (from $0.50 to more than $2.00/mcf) in the state have caused considerable concern about the economic feasibility of continued irrigation. Research was conducted to estimate the effect of continuing natural gas price increases on irrigation [8].

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Section: Calculates the Present Value Of Netmentioning

confidence: 99%

“…The 75 percent efficiency would be achieved by correctly designing the pump and making timely repairs. The expected cost to improve the efficiency for an average well in the region is $3,000 [10].…”

Section: Calculates the Present Value Of Netmentioning

confidence: 99%

Implication of Improved Irrigation Pumping Efficiency for Farmer Profit and Energy Use

Hardin

Lacewell

1979

J. Agric. Appl. Econ.

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“…No sign of even a remnant of medial rectus could be found attached to the eyeball. A search was made behind the caruncle as advised by Lyle (1952). Although no muscle was actually identified, the 'wadge' of tissue behind the caruncle was mobilised and (re) attached to the globe with resulting good movement-which confirmed the presence of muscle, with an insertion presumably not far behind the level of the caruncle.…”

Section: Indication For Operationmentioning

confidence: 99%

Late reoperations for squint.

Phillips¹,

Vaid²

1977

British Journal of Ophthalmology

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SUMMARY Ten patients in the age range 2 to 22 years are described who had operations initially for squint in childhood. Nine had had concomitant convergent strabismus and one divergent. All The absence of any new cases of diplopia (the two who had it preoperatively retained it without aggravation) is attributed to the fact that all cases were under-corrected, i.e., no convergent or divergent squint was converted into a divergent or convergent squint respectively, so that the noncorresponding image remained within the area of suppression, which probably extends only to the vertical meridian in a squinting eye.Although there is considerable information about initial surgery for cases of strabismus and its results, surprisingly little seems to have been written about the problem of reoperation in adult life to correct those squints which have followed operations performed usually many years previously (Jampolsky, 1975). In the last 4 years 10 such cases have been operated on successfully; the result of this group is presented partly to encourage the publication of larger series which would help clinicians to formulate clinical judgment especially regarding operation. (We have excluded cases of secondary squint not operated on because of the difficulty in tracing their records: the decision against operation was based primarily on the absence of sufficient cosmetic disability, often related to the fact that they occurred in the elderly.)From previous experience we had reached the 'Commonwealth Medical Fellow, 1975-6.

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“…CALCUL DIRECT. -Posons : 1 R et z désignent les coordonnées cylindriques de éléments de courant symétriques I dR dz, R~ et zp celles du point P où l'on calcule le champ magnétique ;…”

Section: Figunclassified

“…-Pour calculer le champ résultant créé par une ou plusieurs bobines épaisses, on peut, à partir d'une spire élémentaire, utiliser une méthode d'intégration sur les dimensions finies de la section droite. Il est possible également de découper chacune d'elles en éléments qui obéissent aux conditions de Lyle [1] et de sommer les résultats obtenus. Ces procédés ne sont cependant pas généraux, car ils ne permettent ni de trouver le meilleur arrangement possible des bobines, ni la forme optimale de la section droite.…”

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Champs magnétiques créés par des bobines circulaires de sections droites finies et application aux topographies dites en r-1

Mugnier

Dauphine

Lafoucrière

et al. 1969

Rev. Phys. Appl. (Paris)

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Les perturbations apportées au champ théorique obtenu pour des courants filiformes, par le caractère fini des dimensions des bobines circulaires de section rectangulaire, sont évaluées à l'aide des composantes axiales et radiales de ce champ, en tous points de l'espace. L'application aux topographies, dites en r-1, permet de calculer analytiquement l'influence des dimensions finies de cette section droite sur une telle répartition.

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Parks and park engineering, by William T. Lyle ...

Abstract: Washington parks, treatment of roads in, 118 Water meters, 62 Water pipes, 61, 111 hydrants for, 61, 63 testing, 112 water hammer in, 112 Water supply, its protection,

Cited by 6 publications

References 0 publications

Implication of Improved Irrigation Pumping Efficiency for Farmer Profit and Energy Use

Implication of Improved Irrigation Pumping Efficiency for Farmer Profit and Energy Use

Late reoperations for squint.

Champs magnétiques créés par des bobines circulaires de sections droites finies et application aux topographies dites en r-1

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