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LSTM based Supply Imbalance Detection and Identification in Loaded Three Phase Induction Motors
Majid, Hussain,Fayaz Ahmed, Memon,Umair, Saeed,Babar, Rustum,Kelash, Kanwar,Abdul Rafay, Khatri International Journal of Computer ScienceNetwork S 2023 International journal of computer science and netw Vol.23 No.1
Mostly in motor fault detection the instantaneous values 3 axis vibration and 3phase current in time domain are acquired and converted to frequency domain. Vibrations are more useful in diagnosing the mechanical faults and motor current has remained more useful in electrical fault diagnosis. With having some experience and knowledge on the behavior of acquired data the electrical and mechanical faults are diagnosed through signal processing techniques or combine machine learning and signal processing techniques. In this paper, a single-layer LSTM based condition monitoring system is proposed in which the instantaneous values of three phased motor current are firstly acquired in simulated motor in in health and supply imbalance conditions in each of three stator currents. The acquired three phase current in time domain is then used to train a LSTM network, which can identify the type of fault in electrical supply of motor and phase in which the fault has occurred. Experimental results shows that the proposed single layer LSTM algorithm can identify the electrical supply faults and phase of fault with an average accuracy of 88% based on the three phase stator current as raw data without any processing or feature extraction.
Bone whitlockite: synthesis, applications, and future prospects
Batool Sadaf,Liaqat Usman,Babar Bushra,Hussain Zakir 한국세라믹학회 2021 한국세라믹학회지 Vol.58 No.5
Bone whitlockite (WH) exists in the collagen matrix along with hydroxyapatite (HA) and plays a vital role during earlier stages of bone development. It is present in short-range order and is diffi cult to identify in the bone, as compared to HA mineral, that covers 80% of the bone inorganic phase. It has the same structural analogy with β-TCP, but detailed structural and crystallographic analyses of bone have shown that β-tricalcium phosphate (β-TCP) is merely a synthetic analog of bone whitlockite, having the same crystalline structure but diff erent chemically. WH contains magnesium at Ca(IV), Ca(V) positions, and HPO 4 2− on a threefold axis in a rhombohedral crystal lattice. Its biocompatibility, functionality, negative surface charge, mechanical strength, and stability in physiological solvents make it an ideal bone substitute as compared to hydroxyapatite (HA) and β-TCP. It has magnesium as a major component that has a strong affi nity with integrin protein. Integrin protein plays a vital role in bone tissue integration. It is bioresorbable and biodegradable and the rate of degradation complements with regeneration. However, despite these excellent properties, this material has always been overshadowed by other calcium phosphates (CaPs), because it is diffi cult to synthesize. In this review article, we present a comprehensive study on the diff erence in the crystalline structure of bone whitlockite and β-TCP, its presence in the natural system, and conditions under which its nucleation occurs in native bone and at lab scale. Furthermore, the reaction conditions that favor homogenous precipitation of synthetic WH and the role of magnesium in the stabilization of diff erent CaPs to obtain pure WH phase are also discussed. Finally, the applications of WH in biomedical and for heavy metal adsorption are summarized.
Breast Mass Detected During Cardiac Stress Testing Which Led to Correct Diagnosis and Treatment
Ullah Ihsan,Laghari Abid Hussain,Farhad Awais,Adnan Ghufran,Nagher Babar 아시아심장혈관영상의학회 2022 Cardiovascular Imaging Asia Vol.6 No.1
The incidental findings/artifacts identified on myocardial perfusion imaging (MPI) often warrant further evaluation to rule out possible malignant pathologies. In this case report, we describe an elderly lady who was advised to undergo MPI for cardiac risk stratification prior to a non-cardiac surgery. Her MPI showed a large-sized infarct. In addition, a nodule on the left side of her chest that demonstrated increased isotope uptake was identified incidentally. Further evaluation of this lesion revealed a histopathological diagnosis of intraductal carcinoma of the breast. This case highlights the importance of reporting and investigating all suspicious incidental MPI findings.
Sequence variation of necdin gene in Bovidae
( Sunday O. Peters ),( Marcos De Donato ),( Tanveer Hussain ),( Hectorina Rodulfo ),( Masroor E. Babar ),( Ikhide G. Imumorin ) 한국축산학회(구 한국동물자원과학회) 2018 한국축산학회지 Vol.60 No.12
Background: Necdin (NDN), a member of the melanoma antigen family showing imprinted pattern of expression, has been implicated as causing Prader-Willi symptoms, and known to participate in cellular growth, cellular migration and differentiation. The region where NDN is located has been associated to QTLs affecting reproduction and early growth in cattle, but location and functional analysis of the molecular mechanisms have not been established. Methods: Here we report the sequence variation of the entire coding sequence from 72 samples of cattle, yak, buffalo, goat and sheep, and discuss its variation in Bovidae. Median-joining network analysis was used to analyze the variation found in the species. Synonymous and non-synonymous substitution rates were determined for the analysis of all the polymorphic sites. Phylogenetic analysis were carried out among the species of Bovidae to reconstruct their relationships. Results: From the phylogenetic analysis with the consensus sequences of the studied Bovidae species, we found that only 11 of the 26 nucleotide changes that differentiate them produced amino acid changes. All the SNPs found in the cattle breeds were novel and showed similar percentages of nucleotides with non-synonymous substitutions at the Nterminal, MHD and C-terminal (12.3, 12.8 and 12.5%, respectively), and were much higher than the percentage of synonymous substitutions (2.5, 2.6 and 4.9%, respectively). Three mutations in cattle and one in sheep, detected in heterozygous individuals were predicted to be deleterious. Additionally, the analysis of the biochemical characteristics in the most common form of the proteins in each species show very little difference in molecular weight, pI, net charge, instability index, aliphatic index and GRAVY (Table 4) in the Bovidae species, except for sheep, which had a higher molecular weight, instability index and GRAVY. Conclusions: There is sufficient variation in this gene within and among the studied species, and because NDN carry key functions in the organism, it can have effects in economically important traits in the production of these species. NDN sequence is phylogenetically informative in this group, thus we propose this gene as a phylogenetic marker to study the evolution and conservation in Bovidae.
Female Body Shape Classifications and Their Significant Impact on Fabric Utilization
T. Naveed,Y. Zhong,A. Hussain,A. A. Babar,A. Naeem,A. Iqbal,S. Saleemi 한국섬유공학회 2018 Fibers and polymers Vol.19 No.12
In apparel manufacturing, more than 50 % cost is consumed by the textile fabric. Therefore companies have significant apprehensions in the fabric utilization. It can result in more efficient and cost-effective in fabric utilization if they are related to different body shapes. The purpose of this study is to classify female body shapes and evaluate fabric utilization efficiency for each category of the body shape. To this end, three dimensional (3D) body scans are collected from 124 young female subjects. For the body shape analysis, 3D body scans are processed by using Moore neighbor algorithm and region prop function to perceive the outermost shell. Moreover, both front and side view of the scans is processed for data reduction using Principle Component Analysis (PCA) and clustering using K-Means ++. It has been observed through our analysis of a dataset that female bodies can be categorized into four body shapes, that is, oval shape, circle shape, triangle shape, and rectangle shape. It has also been observed that all four body shape categories exhibit dissimilar anthropometric size measures. The result implies that these body shapes have devoured different fabric utilization for the garments (fitted trouser and fitted shirt). It has been noted that in fitted trouser and fitted shirt the most effective is the rectangle shape (cluster 4) and the least is the circle shape (cluster 2) in the fabric consumption. Similarly, the fitted trousers utilize less fabric while the fitted shirts consume more fabric in all body shapes. These findings provide a better reference of fabric utilization and cost-effectiveness to the apparel manufacturers while producing garments for different categories of the body shape.