Granular Mobility-Factor Analysis Framework for enriching Occupancy Sensing with Doppler Radar

With the growing need for adoption of smarter resource control system in existing infrastructure, the proliferation of occupancy sensing is slowly increasing its pace. After reviewing an existing system, we find that utilization of Doppler radar is less progressive in enhancing the accuracy of occupancy sensing operation. Therefore, we introduce a novel analytical model that is meant for incorporating granularity in tracing the psychological periodic characteristic of an object by emphasizing on the mobility and uncertainty movement of an object in the monitoring area. Hence, the model is more emphasized on identifying the rate of change in any periodic physiological characteristic of an object with the aid of mathematical modelling. At the same time, the model extracts certain traits of frequency shift and directionality for better tracking of the unidentified object behavior where its applicabilibility can be generalized in majority of the fields related to object detection

Oxygen Isotopic Imaging of Refractory Inclusions from the Miller Range (MIL) 090019 CO3 Chondrite: A Perovskite Perspective

Calcium-Aluminum-rich Inclusions (CAIs) in primitive meteorites are the first solids to condense in the Solar System. The oxygen isotopic compositions recorded in various mineral components of CAIs provide clues about their origins and post-formation histories, recording processes such as condensation, melting, nebular alteration, and fluidrock reactions on the parent body. MIL 090019 is similar to some rare carbonaceous chondrites such as Acfer 094, DOM 08004/6 and ALH 77303 that contain high abundances of a variety of refractory inclusions. This provides an opportunity to study the oxygen isotopic record of different types of refractory inclusions within the same meteorite. We analyzed CAIs specifically targeting primary minerals that are direct nebular condensates, such as corundum and perovskite, with the goal of gaining insights into the O isotopic composition of the nebular gas(es) from which these CAIs condensed. As MIL 090019 is a classified as CO3.1, it shows some signs of thermal metamorphism, compared to the more primitive CO3 meteorites (e.g., DOM 08004/06). A second goal of this study is to search for evidence of nebular processes in phases such as perovskite and melilite that are susceptible to parent body alteration to varying degrees. We analyzed the oxygen isotopic compositions of various CAIs from the MIL 090019 CO3 carbonaceous chondrite by ion imaging using the NanoSIMS 50L (Nano Secondary Ion Mass Spectrometer) at JSC following methods described in. An advantage of ion imaging over traditional spot analyses is that it provides spatial context to the oxygen isotopic data. This work builds on previously reported oxygen isotopic composition of two other CAIs (CAI-44 and CAI-E2) from the same meteorite thin section

Comparison of haemodynamic responses in normotensive and hypertensive patients among three intubation devices: macintosh laryngoscope, intubating laryngeal mask airway and lightwand

Background: The pressor response to endotracheal intubation is of special concern, especially in the presence of comorbidities like diabetes, hypertension, obesity and ischemic heart disease (IHD). It is commonly assumed that insertion of laryngeal mask airway (LMA) is associated with lesser hemodynamic fluctuations than conventional laryngoscopy. Also, the lightwand (LW) is believed to provoke a milder pressor response as it does not involve elevation of epiglottis. We decided to evaluate the pressor response to all three devices in normotensive and hypertensive patients.   Methods: We conducted a randomized prospective study consisting of 126 patients posted for surgical procedures under general anesthesia. 63 hypertensive and 63 normotensive patients were randomly assigned to each intubation device: the macintosh laryngoscope (LS), the lightwand (LW), and the intubating laryngeal mask airway (ILMA).The peri-intubation hemodynamic parameters were recorded. Statistical analysis was done with SPSS version 17.0 Inter- and intra-group differences among the hemodynamic variables recorded over time were analyzed by using one-way analysis of variance for repeated measures with bonferroni post-test analysis as appropriate. All quantitative data were expressed as mean±standard deviation (SD). A p-value less than 0.05 was considered statistically significant.Results: All 3 devices (LS, ILMA and LW) are comparable with respect to hemodynamic fluctuations in normotensive patients. However, in hypertensive patients conventional laryngoscopy was associated with greater hemodynamic fluctuations than ILMA or LW. However there was no significant difference in the hemodynamic fluctuations between ILMA and LW.Conclusions: The ILMA and LW may be preferable to LS in hypertensive patients where attenuation of hemodynamic stress response is desired

Effect of retempering with retarding admixture on properties of concrete subjected to prolonged mixing

In situations like delivery of concrete from central mixing plant, in road construction, in constructing lengthy tunnels, in transportation of concrete by manual labor, in hilly terrain long hauling of concrete is required. Loss of workability and undue stiffening of concrete may take place at the time of placing on actual work site1. In such situations engineers at site, many a time reject the concrete partially set and unduly stiffened due to the time elapsed between mixing and placing. Mixed concrete is a costly material and it cannot be wasted without any regard to cost. It is required to see whether such a stiffened concrete could be used on work without undue harm with use of retarding admixtures. The process of remixing of concrete, if necessary, with addition of just the required quantity of water is known as ‘retempering’ of concrete1. Sometimes, a small quantity of extra cement is also added while retempering. In the site sometimes the concrete has to wait for some time to enter in the formwork after it is mixed. This may be due to some break down in the conveyance or quarrel between the labors. In such situations the concrete looses its plasticity. But since the quantity is enormous2, such concrete cannot be wasted. In such situations addition of small quantity of cement and water along with retarding admixture can bring back the plasticity to concrete. Thus retempering becomes important in such odd situations2. In this paper an attempt is made to study the strength characteristics of concrete containing retarding admixture at retempering time of 15min upto 90 min. The tests are conducted to evaluate the strength characteristics of concrete like compressive strength, tensile strength, flexural strength for different retempering times

Can prostaglandin E1 (Misoprostol) be an alternative to prostaglandin E2 (PGE2) for induction of labor in prelabor rupture of membranes (PROM) after 34 weeks period of gestation

Background: To compare efficacy and safety of prostaglandin E1 (misoprostol) to prostaglandin E2 (PGE2) for induction of labor in prelabor rupture of membranes (PROM) after 34 weeks period of gestation and its use as an alternative to PGE1.Methods: 80 women were recruited in this prospective interventional study who was admitted with PROM after 34 weeks of period of gestation for delivery. These women who were planned for induction of labor were alternately assign into two groups i.e. Misoprostol group (n = 40) who received Tab misoprostol 50 mcg orally 4 hourly (h) maximum of five doses and PGE2 group (n = 40) received PGE2 gel intracervically every 6 h for maximum of 3 doses. Analysis regarding safety and efficacy of the drugs was done with regards to maternal and perinatal outcome.Results: Out of 80 women, 40 received misoprostol and 40 received PGE2 gel. The intervention to induction interval was significantly less in PGE2 group (p-0.004) whereas the induction to delivery interval was similar in both groups (p- 0.628). Significant number of women delivered vaginally without need for oxytocin in misoprostol group, (p- 0.039) however there was no statistical difference in both groups as far as overall vaginal deliveries and caesarean section are concerned. Comparable neonatal and maternal morbidities were noted in both groups.Conclusions: Oral misoprostol can be used as an alternative to PGE2 gel for induction of labor after 34 weeks of period of gestation in women with PROM as it was found to be safe and effective in achieving vaginal deliveries with reduced need for oxytocin, without increasing maternal and neonatal morbidity.

Spin transport, spin diffusion and Bloch equations in electron storage rings

We show how, beginning with the Fokker--Planck equation for electrons emitting synchrotron radiation in a storage ring, the corresponding equation for spin motion can be constructed. This is an equation of the Bloch type for the polarisation density.Comment: 7 pages. No figures. Latex: Minor corrections in the tex

Analytical framework for optimized feature extraction for upgrading occupancy sensing performance

The adoption of the occupancy sensors has become an inevitable in commercial and non-commercial security devices, owing to their proficiency in the energy management. It has been found that the usages of conventional sensors is shrouded with operational problems, hence the use of the Doppler radar offers better mitigation of such problems. However, the usage of Doppler radar towards occupancy sensing in existing system is found to be very much in infancy stage. Moreover, the performance of monitoring using Doppler radar is yet to be improved more. Therefore, this paper introduces a simplified framework for enriching the event sensing performance by efficient selection of minimal robust attributes using Doppler radar. Adoption of analytical methodology has been carried out to find that different machine learning approaches could be further used for improving the accuracy performance for the feature that has been extracted in the proposed system of occuancy system

Prediction of tensile strength of concrete produced by using pozzolanic materials and partly replacing natural sand by manufactured sand

The overuse level of cement and natural sand for civil industry has several undesirable social and ecological consequences. As an answer for this, industrial wastes or by-products (pozzolanic materials) such as fly ash, GGBFS, silica fume and metakaolin can be used to interchange partially cement and natural sand by manufacturing sand (M-sand). In this study, Artificial Neural Networks (ANNs) models were developed for predicting the tensile strength, at the age of 28 days, of concretes containing partly pozzolanic materials and partly replacing natural sand by manufactured sand. Tensile strength test were performed and test results were used to construct ANN model. A total of 131 values was used for modeling ANN, 80% in the training phase, and 20% in the testing phase. To construct the model, 25 input parameters were used to achieve one output parameter, referred to as the tensile strength of concrete containing partly pozzolanic materials and manufactured sand. The results obtained in both, the training and testing phases strongly show the potential use of ANN to predict 28 days tensile strength of concretes containing partly pozzolanic materials and manufactured sand

Review of optimal design of composite structures under uncertainty

This study represents optimization of hollow circular, rectangular and airfoil composite beam by using sub problem approximation method in ANSYS. A three dimensional static analysis of large displacement type has been carried out for hollow circular, rectangular and airfoil composite beams. Weight of beam was objective function, material parameter, geometrical, ply thickness, ply angles and load. In order to validate the results, one loop of simulation is benchmarked from results in literature. Ultimately, best set of optimized design variable is proposed to reduce weight under static loading condition