نتایج جستجو برای: sigma index
تعداد نتایج: 418876 فیلتر نتایج به سال:
The Decision On Belief (DOB) control chart is a univariate that was initially introduced as solution to the problem of less than optimal limits from shewhart attribute diagram, especially C. new scheme based on DOB calculation step , can change data which not normally distributed into normal distribution, then diagnose quality process errors. . defines belief or an assumption in observation vec...
The reflection coefficient (sigma) and permeability (P) of urea and ethylene glycol were determined by fitting the equations of Kedem and Katchalsky (1958) to the change in light scattering produced by adding a permeable solute to a red cell suspension. The measurements incorporated three important modifications: (a) the injection artifact was eliminated by using echinocyte cells; (b) the use o...
قبلاً نشان داده شده است که در کانال های چندکاربره با شرط حداقل نرخ ارسالی، برای کانال های پخش با فرض محوشوندگی رایلی، رایس و ناکاگامی برای گیرنده های مختلف، ظرفیت کاربری (یا به عبارتی حداکثر تعداد کاربرانی که می توانند بطور همزمان فعال باشند) بصورت لگاریتمی دوگانه مقیاس بندی می شود بعبارتی برای توزیع های فوق بترتیب بصورت $ ln (p ln n)/r_{min} $، $ ln (2 p ln n)/r_{min} $ و $ ln(frac...
given a graph $g$, let $g^sigma$ be an oriented graph of $g$ with the orientation $sigma$ and skew-adjacency matrix $s(g^sigma)$. then the spectrum of $s(g^sigma)$ consisting of all the eigenvalues of $s(g^sigma)$ is called the skew-spectrum of $g^sigma$, denoted by $sp(g^sigma)$. the skew energy of the oriented graph $g^sigma$, denoted by $mathcal{e}_s(g^sigma)$, is defined as the sum of the n...
Process tolerancing based on the process capability studies is the optimistic and pragmatic approach of determining the manufacturing process tolerances. On adopting the define–measure–analyze–improve–control approach, the process potential capability index (C p) and the process performance capability index (C pk) values of identified process characteristics of connecting rod ...
Let $R$ be a ring, $sigma$ be an endomorphism of $R$ and $M_R$ be a $sigma$-rigid module. A module $M_R$ is called quasi-Baer if the right annihilator of a principal submodule of $R$ is generated by an idempotent. It is shown that an $R$-module $M_R$ is a quasi-Baer module if and only if $M[[x]]$ is a quasi-Baer module over the skew power series ring $R[[x,sigma]]$.
OBJECTIVE The objective of the present work was to develop and compare methods for automatic detection of bilateral sleep spindles. METHODS AND MATERIALS All-night sleep electroencephalographic (EEG) recordings of 12 healthy subjects with a median age of 40 years were studied. The data contained 6043 visually scored bilateral spindles occurring in frontopolar or central brain location. In the...
Introduction: The competitive condition of the world is such that the organizations make quality improvement, increase customers' satisfaction, reduce costs and increase productivity. Existence of such environment cause the variety technique and approaches such as total quality management, re-engineering, value engineering, lean production and Six Sigma. Six Sigma as the newest program of quali...
Intrudaction: Conspicuous achievements of organization with minimum facilities on one hand and failure of organizations with materialist abilities on the other hand have been shown the considerable role of factors including non-materialist and spiritual in their success. Organizational culture would be considered as an effective factor in organization performance. correlation of organization's ...
There is a need for a simple clinical measurement that will indicate the extent of myocardial salvage after successful thrombolysis. This study examined whether coronary artery reperfusion reduced the infarct size as assessed electrocardiographically after thrombolytic treatment. The sum of the (sigma) ST segment area in leads showing ST segment elevation in the 12 lead electrocardiogram at pre...
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