365 research outputs found
Built-In Test Sequence Generation for Synchronous Sequential Circuits Based on Loading and Expansion of Test Subsequences
We describe an on-chip test generation scheme for synchronous sequential circuits that allows at-speed testing of such circuits. The proposed scheme is based on loading of (short) input sequences into an on-chip memory, and expansion of these sequences on-chip into test sequences. Complete coverage of modeled faults is achieved by basing the selection of the loaded sequences on a deterministic test sequence T 0, and ensuring that every fault detected by T 0 is detected by the expanded version of at least one loaded sequence. Experimental results presented for benchmark circuits show that the length of the sequence that needs to be stored at any time is on the average 10 % of the length of T 0, and that the total length of all the loaded sequences is on the average 46 % of the length of T 0. 1
The Study and Literature Review of a Feature Extraction Mechanism in Computer Vison
Detecting the Features in the image is a challenging task in computer vison and numerous image processing applications. For example to detect the corners in an image there exists numerous algorithms. Corners are formed by combining multiple edges and which sometimes may not define the boundary of an image. This paper is mainly concentrates on the study of the Harris corner detection algorithm which accurately detects the corners exists in the image. The Harris corner detector is a widely used interest point detector due to strong features such as rotation, scale, illumination and in the case of noise. It is based on the local auto-correlation function of a signal; where the local auto-correlation function measures the local changes of the signal with patches shifted by a small amount in di?erent directions. In out experiments we have shown the results for gray scale images as well as for color images which gives the results for the individual regions present in the image. This algorithm is more reliable than the conventional methods
PROPHYLACTIC MEASURES AGAINST COMMUNICABLE DISEASES W.S.R TO COVID-19: AN AYURVEDIC APPROACH
Ayurveda, the ancient treasure of medical knowledge descended to earth with two aims to serve human beings i.e Swsathasya swasthya rakshanam (Promotive and Preventive measure) and Aturasya vikara prashamanam (curative measures). Ayurveda categorized diseases into two Nija (diseases caused by endogenous factors) and Agantuja (diseases caused by exogenous factors). The term Agantuja implied in broad spectrum under which external trauma and organisms such as bacteria, virus, fungi all been incorporated. Ayurveda described communicable diseases and their causes, mode of transmission, prevention as well as cure under Janapadodhwamsa (Epidemics), Aupasargika roga (infectious diseases), Sankramika roga (Communicable diseases). In promotion of health and in prevention of diseases, Ayurveda prescribed prophylactic measures like Dinacharya (daily regimen), Ritucharya (seasonal regimen), Sadvritta (good personal and social conducts), Rasayana (Rejuvenation therapy) etc. In this article an honest attempt has been made to review systematically the prophylactic measures against communicable diseases with special reference to COVID-19 pandemic- a challenging task for medical fraternity all over the world
On testing delay faults in macro-based combinational circuits
Abstract We consider the problem of testing for delay faults in macrobased circuits. Macro-based circuits are obtained as a result of technology mapping. Gate-level fault models cannot be used for such circuits, since the implementation of a macro may not have an accurate gate-level counterpart, or the macro implementation may not be known. Two delay fault models are proposed for macro-based circuits. The first model is analogous to the gatelevel gross delay fault model. The second model is analogous to the gate-level path delay fault model. We provide fault simulation procedures, and present experimental results
ОБЗОР СЕМАНТИКИ ЯЗЫКА HTML 5
HTML5 несет в себе множество изменений разного уровня и разной важности. Принципиально, ключевые изменения можно разделить на 5 блоков: семантика, мультимедиа, динамичная графика, веб-формы, JavaScript APls. В данной статье рассмотрен обзор семантики HTML5 в котором появился ряд новых семантических тегов, позволяющих более осмысленно организовывать внутреннюю структуру веб-страни
Ultrastructural study on morphology of Schistosoma spindale by Scanning electron microscopy (SEM)
The present study was undertaken to investigate the detailed morphological features along with morphometry of different structures of Schistosoma spindale (Adult flukes) which were recovered by a perfusion technique and visualized by Scanning Electron Microscopy (SEM). The length of spines on the oral sucker and ventral suckers were 2.6 µm and 2.5 µm, respectively. The measured width of aspinose area beneath the ventral sucker, rim of the ventral sucker and tegumental papillae were 5.4, 22.5 µm and 3 µm, respectively. Males have a welldefined gynaecophoric canal, originating just below the ventral sucker and extending up to the posterior end of the body, continued as a marked conical projection. The ventral surface of the oral sucker was completely covered with numerous spines. The ventral sucker was pedunculated, round, thick-rimmed and the inner side contained numerously pointed spines directed towards the center of the ventral sucker. The tegument surface of S. spindale showed ridged layers with large uniciliated and pit like papillae which were recorded more in posterior end. Thus, Scanning Electron microscopy (SEM) provided indepth ultrastructural morphological details of Schistosoma spindale which was in accordance with that of previous studies, would be applicable for its differentiation with other species (S. mansoni, S. bovis, S. haematobium, S. japonicum)
MDL 17,043 therapy in severe congestive heart failure: Characterization of the early and late hemodynamic, pharmacokinetic, hormonal and clinical response
MDL 17,043, an agent with both inotropic and vasodilator properties, was evaluated in the treatment of chronic severe heart failure. The early and late hemodynamic, hormonal, pharmacokinetic and clinical responses to oral MDL 17,043 were studied in 20 patients. MDL 17,043 acutely increased cardiac output from 3.6 ± 0.9 to 4.6 ± 1.0 liters/min ( + 28%, p < 0.001) and decreased mean pulmonary artery wedge pressure from 24 ± 8 to 13 ± 8 mm Hg (−46%, p < 0.001), mean right atrial pressure from 10 ± 5 to 4 ± 4 mm Hg (−60%, p < 0.001) and mean arterial pressure from 78 ± 9 to 70 ± 11 mm Hg (−10%, p < 0.001). Hemodynamic improvement was sustained for 8 hours. Plasma renin activity tended to increase (0.10 < p > 0.05), plasma norepinephrine tended to decrease (0.10 < p > 0.05) and arginine vasopressin did not show any directional change. Elimination half-life for MDL 17,043 was approximately 20 hours.Hemodynamic responsiveness was maintained in six patients undergoing restudy at 4 weeks. Initial subjective improvement in the 20 patients occurred in 90%, was present at 4 weeks in 50% and continued longer than 3 months in 25%. Side effects occurred in 75% and required cessation of treatment in 10%. Thirteen (93%) of 14 patients on long-term therapy died (median time after start of MDL 17,043 therapy 39 days). Deaths were sudden in 69%.It is concluded that oral MDL 17,043 produces early and late hemodynamic improvement in patients with severe heart failure. The clinical response suggests caution in its use and controlled trials to ascertain whether MDL 17,043 is safe and efficacious in chronic severe heart failure
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