Inverse Transient Analysis (ITA) is a powerful approach for leak detection of pipelines. When the pipe transient flow is analyzed in frequency domain the ITA is called Inverse Frequency Response Analysis (IFRA). To implement an IFRA for leak detection, a transient state is initiated in the pipe by fast closure of the downstream end valve. Then, the pressure time history at the valve location is...

The accuracy of leak detection and calibration of pipe networks by means of the inverse transient analysis (ITA) is highly affected by the number and location of the measurement sites. This study introduces a conceptual decision-making model, the Decision Table Method (DTM), for the measurement site design of pipe networks with the aim of inverse transient analysis. Through the Decision Table M...

BACKGROUND Hypocalcaemia is a well recognized complication of thyroid surgery. We have compared the prevalence of hypocalcaemia in our patients following ligation and non-ligation of the inferior thyroid artery (ITA) during thyroid surgery. METHODS A prospective observational study was done from January 2000 to December 2004, at Fauji Foundation Hospital, Rawalpindi. All patients undergoing s...

The Itoh-Tsujii multiplicative inverse algorithm (ITA) forms an integral component of several cryptographic implementations such as elliptic curve cryptography. For binary fields generated by irreducible trinomials, this paper modifies Itho-Tsuji Algorithm (ITA) for efficient implementation of FPGA. Efficiency is obtained by using FPGA resources better and shorter addition chains. The QUAD circ...

In this paper, we present a method of applying Independent Topic Analysis (ITA) to increasing the number of document data. The number of document data has been increasing since the spread of the Internet. ITA was presented as one method to analyze the document data. ITA is a method for extracting the independent topics from the document data by using the Independent Component Analysis (ICA). IC...

Aims: Spinal analgesia is the most common method that provides pain relief during labor and controversy exists about its effect on the maternal and fetal among the women. This study was conducted to determine the effect of intrathecal analgesia (ITA) on perineal laceration, duration of the first, second, and third stage of labor, and Apgar score. Materials & Methods: Fifty primipara parturien...

Item Tree Analysis (ITA) can be used to mine deterministic relationships from noisy data. In the educational domain, it has been used to infer descriptions of student knowledge from test responses in order to discover the implications between test items, allowing researchers to gain insight into the structure of the respective knowledge space. Existing approaches to ITA are computationally inte...

OBJECTIVES To determine whether the use of the radial artery (RA) vs the saphenous vein (SV) as the second grafting conduit with the internal thoracic artery (ITA) confers a late-survival advantage in diabetes mellitus (DM). METHODS We reviewed our 1996-2007 DM coronary artery bypass grafting (CABG) experience. Study patients (N = 2281) included all primary, non-salvage multigraft CABG discha...

It is suggested that the internal thoracic artery (ITA) harvesting technique influences the incidence of sternal wound infection (SWI) after coronary artery bypass graft (CABG). To determine if there is any real difference between skeletonized vs pedicled ITA, we performed a meta-analysis to determine if there is any real difference between these two established techniques in terms of SWI. We p...

BACKGROUND Use of multiple arterial grafts for surgical coronary revascularization remains limited in scope worldwide, and is disproportionately low in two growing segments of coronary artery disease patients-women and the elderly. While a prevailing practice, this trend is not supported by objective data. This report discusses two recent reports that support the liberal use of the radial arter...