Epigroups in which the operation of taking pseudo-inverse is an endomorphism

Epigroups in which the relation of havin

Epigroups in which the relation of having the same pseudo-inverse is a congruence

✍ Liu, Jingguo 📂 Article 📅 2012 🏛 Springer 🌐 English ⚖ 513 KB

An artificial parameter Linstedt–Poincar

An artificial parameter Linstedt–Poincaré method for the periodic solutions of nonlinear oscillators in which the restoring force is inversely proportional to the dependent variable

✍ J.I. Ramos 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 171 KB

An artificial parameter Linstedt-Poincare´method is presented and used to determine the periodic solution of a nonlinear singular oscillator for small and large amplitudes. Comparisons with the results of harmonic balance, two-level iterative, linearized harmonic balance and parameter perturbation m

In which it is contended that Gloves may

In which it is contended that Gloves may be sterilized without resorting to heat; that the washing of hands before an operation is illogical and unnecessary; that the doctrine of Abstention should above all things be practised.

✍ G. W. Theobald; J. W. Bigger 📂 Article 📅 1924 🏛 John Wiley and Sons 🌐 English ⚖ 699 KB

Specification of an improvement in the m

Specification of an improvement in the mode of operating the rotary steam engine for propelling vessels, or machinery, or for any purpose to which steam power is applied, by the application of steam to mercury. Patented by Stillman Blake, Providence, Rhode Island, October 11, 1828

✍ Stillman Blake 📂 Article 📅 1828 🏛 Elsevier Science 🌐 English ⚖ 157 KB

An Account of a Method of Dividing Astro

An Account of a Method of Dividing Astronomical and other Instruments, by Ocular Inspection; in Which the Usual Tools for Graduating Are Not Employed; the Whole Operation Being So Contrived, That no Error can Occur but What Is Chargeable to Vision, When Assisted by the Best Optical Means of Viewing and Measuring Minute Quantities.

✍ Troughton, E. 📂 Article 📅 1832 🏛 The Royal Society ⚖ 149 KB

An Account of a Method of Dividing Astro

An Account of a Method of Dividing Astronomical and other Instruments, by Ocular Inspection; in Which the Usual Tools for Graduating Are Not Employed; the Whole Operation Being So Contrived, That no Error can Occur but What Is Chargeable to Vision, When Assisted by the Best Optical Means of Viewing and Measuring Minute Quantities. [Abstract]

✍ Edward Troughton 📂 Article 📅 1800-1814 🏛 The Royal Society ⚖ 224 KB