Instrumentum proportionum, oder Unterricht vom Proportional-Zirkul, Durch welchen Sowohl Matematische als Mechanische, unter die Proportion gehorige Fragen, in Theoria und Praxi, mit behender und accurater Fertigkeit aufzulosen sehn ... /

Mode of access: Internet.

The Chapin genealogy : containing a very large proportion of the descendants of Dea. Samuel Chapin, who settled in Springfield, Mass. in 1642 /

Mode of access: Internet.

Mathematics for the practical engineer. Engineers' study course from Power; a mathematical manual for the power plant engineer. Contains simplified lessons for home-study in fractions, ratio and proportion, percentage, involution and evolution, square root, cube root, formulas, logarithms, mensuration and plane trigonometry,

Mode of access: Internet.

The doctrine of universal comparison, or general proportion.

Mode of access: Internet.

The families of plants : with their natural characters, according to the number, figure, situation, and proportion of all the parts of fructification /

Continuously paginated (Vol. 1: [6], lxxx, 1-386 p.; Vol. 2: [4], 387-840).

The vegetable system : or, a series of experiments, and observations tending to explain the internal structure, and the life of plants; their growth, and propagation; the number, proportion, and desposition of their constituent parts; with the true course of their juices; the formation of the embryo, the construction of the seed, and the encrease from that state to perfection /

Vol. 1 is dated 1759, vols. 2-3 1761, vol. 4 1762, and vol. 5 1763.

Observations on the produce of the income tax, : and on its proportion to the whole income of Great Britain. ... /

Press figures: "3" p.6,56; "4" p.10, 23,26,34,69,87,93,150,158,162; "2" p.42,174,180; "1" p.58,80,98,112, 120,124,134,138.

Experimental enquiry concerning the natural powers of wind and water to turn mills and other machines depending on a circular motion. And An experimental examination of the quantity and proportion of mechanic power necessary to be employed in giving different degrees of velocity to heavy bodies from a state of rest. Also New fundamental experiments upon the collision of bodies. With five plates of machines.

Goldsmiths'-Kress no. 16657.1.

Proportion and harmony of line and color in painting, sculpture, and architecture; an essay in comparative aesthetics.

Mode of access: Internet.

Upgrading legacy long-haul WDM systems through unbalancing the proportion of 1s and 0s in the transmitted data

We present experimental results for wavelength-division multiplexed (WDM) transmission performance using unbalanced proportions of 1s and 0s in pseudo-random bit sequence (PRBS) data. This investigation simulates the effect of local, in time, data unbalancing which occurs in some coding systems such as forward error correction when extra bits are added to the WDM data stream. We show that such local unbalancing, which would practically give a time-dependent error-rate, can be employed to improve the legacy long-haul WDM system performance if the system is allowed to operate in the nonlinear power region. We use a recirculating loop to simulate a long-haul fibre system.