A clustering based system for instant detection of cardiac abnormalities from compressed ECG

Compressed Electrocardiography (ECG) is being used in modern telecardiology applications for faster and efficient transmission. However, existing ECG diagnosis algorithms require the compressed ECG packets to be decompressed before diagnosis can be applied. This additional process of decompression before performing diagnosis for every ECG packet introduces undesirable delays, which can have severe impact on the longevity of the patient. In this paper, we first used an attribute selection method that selects only a few features from the compressed ECG. Then we used Expected Maximization (EM) clustering technique to create normal and abnormal ECG clusters. Twenty different segments (13 normal and 7 abnormal) of compressed ECG from a MIT-BIH subject were tested with 100% success using our model. Apart from automatic clustering of normal and abnormal compressed ECG segments, this paper presents an algorithm to identify initiation of abnormality. Therefore, emergency personnel can be contacted for rescue mission, within the earliest possible time. This innovative technique based on data mining of compressed ECGs attributes, enables faster identification of cardiac abnormalities resulting in an efficient telecardiology diagnosis system.     

Self adaptive growing neural network classifier for faults detection and diagnosis

Fault detection and diagnosis have gained widespread industrial interest in machine monitoring due to their potential advantage that results from reducing maintenance costs, improving productivity and increasing machine availability. This article develops an adaptive intelligent technique based on artificial neural networks combined with advanced signal processing methods for systematic detection and diagnosis of faults in industrial systems based on a classification method. It uses discrete wavelet transform and training techniques based on locating and adjusting the Gaussian neurons in activation zones of training data. The learning (1) provides minimization in the number of neurons depending on cost error function and other stopping criterions; (2) offers rapid training and testing processes; (3) provides accuracy in classification as confirmed by the results on real signals. The method is applied to classify mechanical faults of rotary elements and to detect and isolate disturbances for a chemical process. Obtained results are analyzed, explained and compared with various methods that have been widely investigated for fault diagnosis.     

Seismic interpretation for the Jurassic/Paleozoic reservoirs of QASR gas field,Shushan-Matrouh basin north Western Desert,Egypt

The QASR gas field lies in the northern part of Shushan-Matrouh Basin (northern part of the Western Desert). Jurassic (Lower Safa)/Paleozoic are a reservoir rocks, in which the gas is trapped in clastic Sandstone, depending on structural framework affecting it. The QASR field structure is one of the most complex structures in the Western Desert of Egypt. The Jurassic (Lower Safa) and Paleozoic formations are consists of sandstone, siltstone with some shale streaks, indicating shallow marine facies, its sequence may reach a maximum thickness of over 900?ft in the northeastern part of Shushan-Matrouh basin.The combination between well logs data and 3D seismic interpretation represent that the Jurassic (Lower Safa)/Paleozoic form a complex horst block, which is bounded by NE-SW trending deep-seated faults, with throws is excess of 300?ft. The migration of hydrocarbons into the QASR structure could either be laterally from source rocks that occur in the Shushan basin to the west, and vertically from the sub-basin to the north via the QASR-OZORIS bounding fault.Time and depth-structural maps of Jurassic (Lower Safa)/Paleozoic describe various structure aspects that play a vital role in the hydrocarbon potentialities and prospect identification in the area. One incipient element of exploration and development success is to detect the faults that provide structural closure and traps.Two major faults run in the NE-SW direction and configurator a manner of horst and graben blocks. In addition, NWSW trending faults cut these blocks and form a right-lateral strike-slip component of displacement. Four-way dip structural closure represents the fruitful locations for high production and new prospect wells in the QASR gas field and other similar setting elsewhere.     

Extraction and dielectric properties of curcuminoid films grown on Si substrate for high-k dielectric applications

Curcuminoids were extracted from turmeric powder and evaporated in vacuum to prepare thin films on p-Si and glass substrates for dielectric and optical investigations. The optical absorption spectrum of the prepared amorphous film was not identical to that of the molecular one, which was identified by a strong wide absorption band in between ∼220 and 540 nm. The onset energy of the optical absorption of the film was calculated by using Hamberg et al. method. The dielectric properties of this material were systematically studied for future eco friendly applications in metal–insulator–semiconductor MIS field of applications. The complex dielectric properties were studied in the frequency range of 1–1000 kHz and was analysed in-terms of dielectric impedance Z^*(ω) and modulus M^*(ω). Generally, the curcuminoid complex can be considered as a high-k material and can be used in the environmental friendly production of microelectronic devices.     

Bioactive compounds and advanced processing technology: Phaleria macrocarpa (sheff.) Boerl,a review

Recent technological advances and the development of new methods has provided an opportunity to obtain highly purified natural bioactive compound extracts with potential for the treatment and prevention of human diseases. The use of hazardous and toxic solvents for the extraction and processing of bioactive compounds from plant materials is considered a problem for health, safety and environmental pollution. Advanced technology aims to increase production of the desired compounds and find an alternative to using toxic solvents in the extraction of bioactive compounds from plant materials. The ever growing interest in plant bioactive compounds and today's concerns about environment issues have led to an increased need for an efficient and green extraction method. This review is focused on the extraction of bioactive compounds from plants using advanced and environment‐friendly methods such as supercritical fluid extraction, microwave‐assisted extraction, ultrasound‐assisted extraction and similar techniques that can extract rapidly and free from organic residues. An updated overview of the bioactive compounds present in the plant Phaleria macrocarpa and its extraction, fractionation, purification and isolation is provided. The advantages and disadvantages of both conventional and non‐conventional extraction methods are also discussed in this review. © 2014 Society of Chemical Industry     

盛花期和坐果初期施用腐植酸对‘卡拉玛塔’橄榄树果实产量和质量的影响

试验于2011年和2012年两季开展,选择种植在埃及伊斯梅利亚省私人果园有10年树龄的‘卡拉玛塔’橄榄树为试验材料,调查了坐果初期叶面喷施不同浓度(0.125%、0.25%和0.5%)的腐植酸肥Actosol?(含20%腐植酸+氮磷钾1∶5∶6)对橄榄树的影响;并对橄榄树的产量和果实质量(包括平均果实体积大小、重量、长/直径、果肉/核比和湿润程度等),以及果实化学性质(果油和果酸含量)进行了记录。结果表明,在盛花期,施加一剂量的腐植酸肥Actosol?(150 cm3)于‘卡拉玛塔’橄榄树滴灌喷头下方的土壤中;在坐果初期,叶面喷施0.5%的腐植酸肥Actosol?,橄榄树产量最高且果实的理化性状最好。     

Effects of interesterified vegetable oils and sugarbeet fiber on the quality of frankfurters

The effects of interesterified vegetable oils (IVOs) prepared from palm, cottonseed and olive oil, respectively, and sugarbeet fiber (SBF) on quality of frankfurters have been studied. Beef fat (10%) was replaced by one of the IVOs for 60% and 100%. Incorporation of IVOs in frankfurters improved the nutritional content of product due to altering the fatty acid composition. The oleic acid content of frankfurters increased from 28.76% to 45.57% and 47.15% as the interesterified palm oil (IPO) and interesterified olive oil (IOO) contents increased from 0% to 10% and 6%, respectively. The linoleic acid contents of 6% and 10% interesterified cottonseed oil (ICO) added frankfurters were, respectively, 10- and 19.6-fold higher than treatments without ICO. Addition of SBF (<425 μm size and 1% level) significantly increased (p<0.05) the total dietary fiber content and water-holding capacity (WHC) of frankfurters. Incorporation of IVOs and SBF did not lead to significant changes in appearance, colour, texture, flavour or sensory scores. It is concluded that IVOs and SBF may be successfully applied as beef fat substitute in frankfurters since this combination offset some of the changes brought about by beef fat replacement.