Study on Ozone Treatment for Vegetables

Ozone or trioxygen, is a triatomic molecule, consisting of three oxygen atoms. It is much less stable than the diatomic oxygen (O2). Ozone is one of the more powerful oxidants that quickly decompose to diatomic oxygen (O2), while reacting with targeted organic matter or microorganisms having a strong capacity of disinfection and sterilization. It is a powerful germicide which destroys all class of bacteria and fungi, not allowing their development. Unlike other biocides agents such as chlorine, the time necessary to make the disinfection is lower. For this reason, it is very effective in destruction of chlorine resistant microorganisms due to a power of reaction of three thousand times superior to the chlorine, which turns it is a possible biocide agent, as much for the water treatment, like for the treatment of air and closed atmospheres. Ozone is a powerful antimicrobial agent that has numerous potential applications in the food industry because of its significant advantages over traditional antimicrobial agents such as chlorine, potassium sorbates, etc. The present study is focused on the ozonation of the  surface disinfection of the fruit and the vegetable samples at various time intervals. It is aimed at the comparison of the effect of ozonation on the treated samples at various time intervals and thereby determining the suitable treatment time for each of the samples. ozone, triatomic molecule ,antimicrobial agents. Keywords: ozone, triatomic molecule ,antimicrobial agents

hs-CRP as a marker for diastolic dysfunction in patients with cardiovascular risk factors

BACKGROUND: Diastolic dysfunction (DD) is present in more than one third of patients with heart failure. Different mechanisms have been postulated for the pathogenesis of DD. Among them, inflammatory hypothesis is well documented. High sensitivity- c reactive protein (hs-CRP) is a well known biomarker of inflammation. Hence, we analyzed the relationship between serum hs-CRP levels and diastolic dysfunction in patients with cardiovascular risk factors such as hypertension, diabetes mellitus and dyslipidemia. METHODS : We randomly selected 100 outpatients with cardiovascular factors who were asymptomatic and taking medications. They were divided into six groups depending upon the no of risk factors they had. We measured their serum hs-CRP levels by immunoturbidometry, and estimated their left ventricular diastolic function using echocardiography. Statistical analysis was done to find the association between the two variables. RESULTS : Among the 100 patients: males were 56, females 44, the mean age was 52±9, the mean BMI was 30.5±3.18, 20% were hypertensives, 20% had diabetes mellitus, 22% had both diabetes and hypertension,10% had hypertension and dysplipidemia, 14% had diabetes and dyslipidemia, and 14% had all three risk factors. Diastolic dysfunction was present in 62% of the patients of which 66.13% had Grade I diastolic dysfunction and 33.87% had Grade II diastolic dysfunction. Statistical analysis showed significant association between age and DD (p<0.001) as well as between BMI and DD (p<0.001). There was a strong relationship between hs-CRP levels and DD (p=0.001). CONCLUSION : Elevated hs-CRP level is independently associated with diastolic dysfunction in asymptomatic patients with cardiovascular risk factors

Efficient Lookahead Routing and Header Compression For Multicasting in Networks-On-Chip

With advancing technology, Chip Multi-processor (CMP) architectures have emerged as a viable solution for designing processors. Networks-On-Chip (NOCs) provide a scalable communication method for CMP architectures with increasing numbers of cores. Although there has been significant research on NOC designs for unicast traffic, the research on the multicast router design is still in its infant stage. Considering that one-to-many (multicast) and one-to-all (broadcast) traffic are more common in CMP applications, it is important to design a router providing efficient multicasting. In this thesis, a lookahead multicast routing algorithm with limited area overhead is proposed. This lookahead algorithm reduces network latency by removing the need for a separate routing computation (RC) stage. An efficient area optimization technique is put forward to achieve minimal area overhead for the lookahead RC stage. Also, a novel compression scheme is proposed for multicast packet headers to alleviate their big overhead in large networks. Comprehensive simulation results show that with the new route computation logic design and area overhead optimization, providing lookahead routing in the multicast router only costs less than 20 percent area overhead and this percentage keeps decreasing with larger network sizes. Compared with the basic lookahead routing design, our design can save area by over 50 percent. With header compression and lookahead multicast routing, the network performance can be improved on an average by 22 percent for a (16 x 16) network

X=Y–ZH compounds as potential 1,3-dipoles. Part 64: Synthesis of highly substituted conformationally restricted and spiro nitropyrrolidines via Ag(I) catalysed azomethine ylide cycloadditions

1,3-Dipolar reactions of imines of both acyclic and cyclic α-amino esters with a range of nitroolefins using a combination of AgOAc or Ag2O with NEt3 are described. In most cases the reactions were highly regio- and stereospecific and endo-cycloadducts were obtained in good yield. However, in a few cases the initially formed cycloadducts underwent base catalysed epimerisation. The stereochemistry of the cycloadducts was assigned from NOE data and established unequivocally in several cases by X-ray crystallography

Modified Variational Mode Decomposition for Power Line Interference Removal in ECG Signals

Power line interferences (PLI) occurring at 50/60 Hz can corrupt the biomedical recordings like ECG signals and which leads to an improper diagnosis of disease conditions. Proper interference cancellation techniques are therefore required for the removal of these power line disturbances from biomedical recordings. The non-linear time varying characteristics of biomedical signals make the interference removal a difficult task without compromising the actual signal characteristics. In this paper, a modified variational mode decomposition based approach is proposed for PLI removal from the ECG signals. In this approach, the central frequency of an intrinsic mode function is fixed corresponding to the normalized power line disturbance frequency. The experimental results show that the PLI interference is exactly captured both in magnitude and phase and are removed. The proposed approach is experimented with ECG signal records from MIT-BIH Arrhythmia database and compared with traditional notch filtering

Ethyl 1’-[1-(4-methoxyphenyl)-3-phenoxy-4-phenylazetidin-1-yl]-1,3-dioxo-2′,3′,5′,6′,7′,7a′-hexahydroindan-2-spiro-3′-1′H-pyrrolizine-2′-carboxylate

In the title compound, C34H32N2O7, the methyl group and methylene H atoms of the ethoxycarbonyl substituent are disordered over two positions with site occupancy factors for the major and minor conformers of 0.594 (8) and 0.406 (8), respectively. The unsubstituted ring of the pyrrolizine ring system exhibits a twist conformation, the other an envelope conformation. In the crystal structure, mol­ecules are linked through C—H⋯O hydrogen bonds; intramolecular C—H⋯O interactions are also observed

The Second European Service Module (ESM-2) Evolutions, Production and Challenges

This paper presents an overview of the Second European Service Module (ESM-2), the second in a series of European Service Modules produced as part of the Barter agreement between NASA and ESA for the Orion Program. The European Industrial consortium is led by the ESA prime contractor Airbus Defence and Space in Bremen. ESA and Airbus signed the ESM-2 contract on 16 February 2017, for this key element of the Orion Exploration Mission 2 (EM-2). EM-2 is the first crewed mission for Orion and will take astronauts farther into the solar system than humanity has ever travelled. EM-2 will also be a historic mission for Europe, as the ESM-2 will be the first European spacecraft to be part of a human transportation system carrying humans beyond low Earth orbit. ESM-2 is mainly a recurring production following ESM-1. Nevertheless, there are a number of important changes being implemented, for example, to incorporate upgrades to further enhance safety and reliability. The challenging delivery schedule for ESM-2 has driven the need to commence manufacturing prior to completion of the qualification on ESM-1. In addition, some requirement deviations and non-compliances approved for ESM-1 have resulted in modifications for ESM-2. In order to manage the competing constraints effectively, the ESM-2 Team has put in place a number of novel approaches to manage schedule, risk, and technical changes. Airbus has set up multi-functional teams according to an approach known as "Major Spacecraft Deliveries" consisting of quality assurance, engineering and procurement. The risk of starting manufacturing prior to qualification is managed through a special risk share agreement. This agreement necessitates rigorous risk reviews across the board for all manufacturing, assembly, integration and test milestones. The ESM-2 changes are managed by Configuration Management, but Airbus has also introduced the Technical Baseline Matrix to provide a transparent top-level overview of the changes from ESM-1 to ESM-2. The tool provides the basis for ESM-2 design and development needs, decisions, as well as the input for the Orion EM-2 Critical Design Review (CDR). The main technical evolutions, status of the production and the novel management approaches for ESM-2 are presented and discussed in the paper

1′-Phenyl-6′-thia­cyclo­heptane-1-spiro-2′-perhydro­pyrrolizine-3′-spiro-3′′-indoline-2,2′′-dione

The thia­zolidine ring and the pyrrolidine ring in the title compound, C25H26N2O2S, both adopt an envelope conformation. The seven-membered ring has a twist-chair conformation. The crystal packing is stabilized by inter­molecular N—H⋯O hydrogen bonds

3-(4-Methoxy­phen­yl)-6-(phenyl­sulfon­yl)perhydro-1,3-thiazolo[3′,4′:1,2]pyrrolo[4,5-c]pyrrole

In the title compound, C21H24N2O3S2, the three five-membered rings adopt envelope conformations. The dihedral angle between the two aromatic rings is 68.4 (1)°. C—H⋯O inter­actions link the mol­ecules into a chain and the chains are cross-linked via C—H⋯π inter­actions involving the meth­oxy­phenyl ring