Iris fingerprinting: New method for improving accuracy in toric lens orientation

This paper analyzes the existing problems of acting lapping pressure in lapping internal holes of main cylinder of brake-pump with solid abrasives, proposes a new type of solid abrasives supporting method, namely, three supportting points acting lapping pressure method. The method improves pressure distribution between solid abrasives and the surface of the machined workpiece,which is favorable to increase cylindricity of machined hole.Through actual machining process, new method is demonstrated increasing cylindricity accuracy of machined holes of main cylinder significantly.

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Improving accuracy for measuring the ship's magnetic moment in the far field

Izmeritel`naya Tekhnika ◽

10.32446/0368-1025it.2021-8-67-72 ◽

2021 ◽

pp. 67-72

Author(s):

Aleksei A. Zateev ◽

Yury M. Ivanov ◽

Valentin G. Semenov

Keyword(s):

Magnetic Moment ◽

Measurement Method ◽

Hysteresis Loops ◽

New Method ◽

Far Field ◽

Standard Samples ◽

Order Of Magnitude ◽

Differential Magnetometer ◽

Improving Accuracy ◽

The Magnetic Field

The magnetic moment of the ship is measured to control its protection from magnetic mines and to control the stealth by the magnetic field. A modification of the measurement method using a three-component differential magnetometer is considered. Using computer simulation, the errors of the new method are compared with those of the known analogues and its advantage in accuracy is established (almost by an order of magnitude). It is shown that the new method can also be used for magnetic models of ships and standard samples of magnetic materials to determine their components of the hysteresis loops by magnetization.

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Improving Accuracy in the Readout of Resistive Sensor Arrays

Journal of Sensors ◽

10.1155/2018/9735741 ◽

2018 ◽

Vol 2018 ◽

pp. 1-12

Author(s):

José A. Hidalgo-López ◽

Raquel Fernández-Ramos ◽

Jorge Romero-Sánchez ◽

José F. Martín-Canales ◽

Francisco J. Ríos-Gómez

Keyword(s):

Operational Amplifier ◽

Sensor Arrays ◽

New Method ◽

Second Step ◽

Resistive Sensor ◽

Improving Accuracy

The most efficient way to carry out the reading of a set of resistive sensors is to organize them in an array form. This reduces the number of wires to the sum of the number of rows, M, and columns, N, and reading can be carried out using just M+N multiplexers and a single operational amplifier. The drawback in this procedure is the appearance of crosstalk (the influence of the resistance of some sensors on the measurements of others). Although different proposals have been presented in the literature to reduce this phenomenon, errors in determining the resistance values of each sensor still exist in all the proposals. This article presents a new method to determine these values, which considerably reduces errors without the need for any hardware other than the simplest reading circuits. The method consists of a very fast recursive convergence procedure. The results show that the new proposal outperforms other solutions in the first or second step.

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New method for improving accuracy of 24-hour continuous intragastric pH-metry

Digestive Diseases and Sciences ◽

10.1007/bf02088043 ◽

1994 ◽

Vol 39 (7) ◽

pp. 1416-1424 ◽

Cited By ~ 5

Author(s):

G. S. Mela ◽

V. Savarino ◽

A. Malesci ◽

F. Di Mario ◽

P. Sossai ◽

...

Keyword(s):

New Method ◽

Intragastric Ph ◽

Improving Accuracy ◽

Ph Metry

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Detection of Malignant and Benign Breast Cancer Using the ANOVA-BOOTSTRAP-SVM

Journal of Data and Information Science ◽

10.2478/jdis-2020-0012 ◽

2020 ◽

Vol 5 (2) ◽

pp. 62-75

Author(s):

Borislava Petrova Vrigazova

Keyword(s):

Breast Cancer ◽

Support Vector Machines ◽

Cross Validation ◽

New Method ◽

Support Vector ◽

Percentage Points ◽

Vector Machines ◽

Malignant Breast ◽

Improving Accuracy ◽

Practical Implications

AbstractPurposeThe aim of this research is to propose a modification of the ANOVA-SVM method that can increase accuracy when detecting benign and malignant breast cancer.MethodologyWe proposed a new method ANOVA-BOOTSTRAP-SVM. It involves applying the analysis of variance (ANOVA) to support vector machines (SVM) but we use the bootstrap instead of cross validation as a train/test splitting procedure. We have tuned the kernel and the C parameter and tested our algorithm on a set of breast cancer datasets.FindingsBy using the new method proposed, we succeeded in improving accuracy ranging from 4.5 percentage points to 8 percentage points depending on the dataset.Research limitationsThe algorithm is sensitive to the type of kernel and value of the optimization parameter C.Practical implicationsWe believe that the ANOVA-BOOTSTRAP-SVM can be used not only to recognize the type of breast cancer but also for broader research in all types of cancer.Originality/valueOur findings are important as the algorithm can detect various types of cancer with higher accuracy compared to standard versions of the Support Vector Machines.

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Selective Sampling and Orientation of Non-Homogeneous Tissues

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100100238 ◽

1968 ◽

Vol 26 ◽

pp. 98-99

Author(s):

C. C. Clawson ◽

L. W. Anderson ◽

R. A. Good

Keyword(s):

Electron Microscopy ◽

Electron Microscope ◽

Light Microscopy ◽

Random Sampling ◽

New Method ◽

Microscope Examination ◽

Small Areas ◽

Selective Sampling ◽

Large Numbers ◽

Specific Orientation

Investigations which require electron microscope examination of a few specific areas of non-homogeneous tissues make random sampling of small blocks an inefficient and unrewarding procedure. Therefore, several investigators have devised methods which allow obtaining sample blocks for electron microscopy from region of tissue previously identified by light microscopy of present here techniques which make possible: 1) sampling tissue for electron microscopy from selected areas previously identified by light microscopy of relatively large pieces of tissue; 2) dehydration and embedding large numbers of individually identified blocks while keeping each one separate; 3) a new method of maintaining specific orientation of blocks during embedding; 4) special light microscopic staining or fluorescent procedures and electron microscopy on immediately adjacent small areas of tissue.

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