Magnetic field dependence of antiferromagnetic resonance in NiO

We report on measurements of magnetic field and temperature dependence of antiferromagnetic resonances in the prototypical antiferromagnet NiO. The frequencies of the magnetic resonances in the vicinity of 1 THz have been determined in the time-domain via time-resolved Faraday measurements after selective excitation by narrow-band superradiant terahertz (THz) pulses at temperatures down to 3 K and in magnetic fields up to 10 T. The measurements reveal two antiferromagnetic resonance modes, which can be distinguished by their characteristic magnetic field dependencies. The nature of the two modes is discussed by comparison to an eight-sublattice antiferromagnetic model, which includes superexchange between the next-nearest-neighbor Ni spins, magnetic dipolar interactions, cubic magneto-crystalline anisotropy, and Zeeman interaction with the external magnetic field. Our study indicates that a two-sublattice model is insufficient for the description of spin dynamics in NiO, while the magnetic-dipolar interactions and magneto-crystalline anisotropy play important roles

Some generalized two-step block hybrid Numerov method for solving general second order ordinary differential equations without predictors

This paper proposes a class of generalized two-step Numerov methods, a block hybrid type for the direct solution of general second order ordinary differential equations. Both the main method and additional methods were derived via interpolation and collocation procedures. The basic properties of zero stability, consistency and convergence of these methods were also investigated. Results from numerical examples show significant improvement.Keywords: Block Hybrid Methods, Ordinary Differential Equations, Continuous formulation, Interpolation and Collocation, Numerov metho

Engineering Research Models Evaluation Methods

The objective of several records analysis is in the direction of extorts since unrefined in sequence the precise evaluation. Individual of the mainly significant as well as frequent difficulty regarding but here is statistical correlation among a retort unpredictable Y and instructive unpredictable Xi. An alternative in the direction of response this problem is just before take up regression analysis in order to model its correlation. There are different kinds of regression analysis. The category of the regression model depends scheduled the category of the distribution of Y. In modeling it is to anticipate the result Y stand scheduled standards of a set of unpredictable Xi. In research problems and models regression analysis and evaluation of methods are very important In this paper it is focused in regression and evaluation methods for validation of models

MANFAAT KELOR (MORINGA OLEIFERA) BAGI KESEHATAN

Tanaman herbal fitomedisin diyakini memiliki banyak manfaat dibandingkan obat konvensional dan mendapatkan kembali minat dalam penelitian saat ini. Moringa oleifera adalah tanaman herbal serbaguna yang digunakan sebagai makanan manusia dan alternatif untuk tujuan pengobatan di seluruh dunia. Telah diidentifikasi oleh para peneliti sebagai tanaman dengan banyak manfaat kesehatan termasuk manfaat nutrisi dan obat. Moringa oleifera mengandung asam amino esensial, karotenoid dalam daun, dan komponen dengan sifat nutraceutical, mendukung gagasan untuk menggunakan tanaman ini sebagai suplemen nutrisi atau konstituen dalam persiapan makanan. Beberapa evaluasi nutrisi telah dilakukan pada daun dan batang. Faktor penting yang menjelaskan penggunaan obat dari Moringa oleifera adalah berbagai antioksidan penting, antibiotik dan nutrisi termasuk vitamin dan mineral. Hampir semua bagian dari kelor dapat dimanfaatkan sebagai sumber nutrisi dengan nilai manfaat lainnya

Face Detection and Recognition for Android Smart Phone

The level of processing power of mobile phones have been steadily increasing over the past few years and it has now reached an extent at which there are mobile phones that could run big applications with relative success. Applications with facial detention and recognition capabilities has also been advancing over the same period of time to a point where successful facial recognition could be implemented with considerable less amount processing power. Due to these two advancement it has now become possible to run facial recognition application on mobile phones. Facial recognition which is the process of identifying specific people in a digital image by comparing and analyzing patterns [6] is now possible on mobile phones. This project would be developing a mobile application capable of performing facial detection and recognition

Special algorithm for the numerical solution of system of initial value problems for ordinary differential equations using block hybrid extended trapezoidal rule of second kind

We develop self-starting family of three and five step continuous extended trapezoidal rule of second kind a block hybrid type (BHETR2s) methods through interpolation and collocation procedure. The BHETR2s methods are then used to produce multiple numerical integrators which are each of the same order and assembled into a single block matrix equation. These equations are simultaneously applied to provide the approximate solution for the ordinary differential equations. The stability properties of the methods were investigated and found to be consistent, zero-stable and hence convergent. The block integrators were tested on three numerical initial value problems of ODEs to show accuracy and efficiency.Keywords: BhETR2s, Zero-Stability, Convergence, General Linear Method, Collocation Method, Trapezoidal Rule, Ordinary Differential Equatio

Study of Ancient and Recent Methods of Green Buildings

This paper is based on a appraisal of study that explain special types of power proficient green buildings, construction of green building is an significant focal point of construction. A green building is with the intention of which uses best possible energy and puts smallest amount contact on atmosphere. Green building” is defined as “a building created with proposes and building development which considerably decrease or eradicate unenthusiastic force of buildings on the atmosphere and residents.” The green building is the building which employs not as much of energy, a reduced amount of water and by means of renewable possessions power is to be created and it is make use of for the residence. The Green building is a structure which contract with the different factors such as learning of water preservation, learn of power preservation building with predictable building with admiration to financial system is studied with the help of suitable case study. It also includes study of existing green building with ancient and recent methods with respect to energy saving, operating cost. The present study briefs the study and propose move toward for green building. A case study for compound typical weather is considered for design. Various alternatives for design stricture in stipulations of cost and energy economy with situation to conservative and non-conventional energy system have been predictable