AN OVERVIEW OF OPTICAL AND THERMOELECTRICAL SYSTEMS DETECTING MOVEMENT OF COMBUSTION ZONES IN SOLID EXPLOSIVES

2017 ◽  
pp. 117-126
Author(s):  
Maciej Miszczak
Keyword(s):  
Burning Velocity ◽  
Combustion Chambers ◽  
Optical Detectors ◽  
Rocket Propellants ◽  
Non Invasive ◽  
General Overview ◽  
Explosive Materials ◽  
Solid Explosives ◽  
Pyrotechnic Compositions ◽  
Made In

In this contribution author did a general overview of works [1-7], in which he participated, describing non-invasive systems on detection of movement of combustion fronts in solid end-burning explosive materials – rocket propellants and pyrotechnic compositions - inserted into tube combustion chambers. The systems are used to measure linear burning velocity of tested explosives. Detecting systems, the author has contributed to as well, concerned the application of pyrolitic graphite (pyrographite) as structural and sensory material of combustive chambers and one of devices detecting the displacement of the burning front i.e. an IR or VIS camera or thermocouples. The review has been made in the background of other systems using optical detectors [8-12] or thermocouples [13-21].

scholarly journals Non-Invasive Prenatal Testing: Current Perspectives and Future Challenges

Genes ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 15
Author(s):  
Luigi Carbone ◽  
Federica Cariati ◽  
Laura Sarno ◽  
Alessandro Conforti ◽  
Francesca Bagnulo ◽  
...  
Keyword(s):  
Prenatal Screening ◽  
Prenatal Testing ◽  
Non Invasive ◽  
Fetal Dna ◽  
Cell Free Fetal Dna ◽  
Common Causes ◽  
Future Challenges ◽  
Neurodevelopmental Impairment ◽  
Fetal Aneuploidies ◽  
Made In

Fetal aneuploidies are among the most common causes of miscarriages, perinatal mortality and neurodevelopmental impairment. During the last 70 years, many efforts have been made in order to improve prenatal diagnosis and prenatal screening of these conditions. Recently, the use of cell-free fetal DNA (cff-DNA) testing has been increasingly used in different countries, representing an opportunity for non-invasive prenatal screening of pregnant women. The aim of this narrative review is to describe the state of the art and the main strengths and limitations of this test for prenatal screening of fetal aneuploidies.

scholarly journals PRETERM LABOUR

2010 ◽  
Vol 17 (01) ◽  
pp. 84-90
Author(s):  
FARZANA LATIF ◽  
BUSHRA BANO ◽  
UZMA HUSSAIN
Keyword(s):  
Glyceryl Trinitrate ◽  
Uterine Contraction ◽  
Preterm Labour ◽  
Descriptive Study ◽  
Transdermal Patch ◽  
Uterine Contractions ◽  
Non Invasive ◽  
The Mean ◽  
Study Setting ◽  
Made In

Objective: To compare the efficacy of Glyecryl trinitrate patch for prolonging gestation for more than 48 hours, 7 days or upto 37 weeks of gestation with Salbutamol in preterm labour. Study Design: Compartive descriptive study. Setting: Fatima Memorial HospitalLahore. Period: Dec 2003 to Jan 2005. Patients & Methods: The study was carried out on 60 pregnant patients admitted in hospital with thesymptoms and signs of preterm labour. The results were statistically analyzed using SPSS version 8.0. Results: Two groups (TransdermalGlyceryl Trinitrate group and Salbutamol) comprising 30 patients each were made. In Glyceryl Trinitrate group, transdermal patch was appliedand in Salbutamol group,. Intravenous infusion titrated according to frequency, duration and intensity of uterine contractions. All the patientsin each group were evaluated for prolongation of gestation for 48 hours till 37th week of gestation. The mean prolongation of pregnancy was26 days in GTN group and 32 days in Salbutamol group. The decrease in frequency of uterine contractions by 67.51 ± 7.74% in first 48 hoursof applying transdermal Glyceryl Trinitrate patch and by 80.14 ± 8.43 % in Salbutamol group which was statistically significant. Conclusion:Trinitrate appears to be a safe, well tolerated and non-invasive but less effectives method of suppressing uterine contraction in preterm labouras compared to Salbutamol.

scholarly journals Analysis on the Possibility of Eliminating Interference from Paraseismic Vibration Signals Induced by the Detonation of Explosive Materials

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 6401
Author(s):  
Józef Pyra ◽  
Maciej Kłaczyński ◽  
Rafał Burdzik
Keyword(s):  
Acoustic Waves ◽  
Vibration Signal ◽  
Test Results ◽  
Subtraction Method ◽  
Reverberation Chamber ◽  
Explosive Materials ◽  
Short Time ◽  
Spectral Subtraction Method ◽  
The Impact ◽  
Made In

This article presents the results of studies on the impact of acoustic waves on geophones and microphones used to measure airblasts carried out in a reverberation chamber. During the tests, a number of test signals were generated, of which two are presented in this article: frequency-modulated sine (sine sweep) waves in the 30–300 Hz range, and the result of detonating 3 g of pyrotechnic material inside the chamber. Then, based on the short-time Fourier transform, the spectral subtraction method was used to remove unwanted disruption interfering with the recorded signal. Using MATLAB software, a program was written that was calibrated and adapted to the specifics of the measuring equipment based on the collected test results. As a result, it was possible to clean the signals of interference and obtain a vibration signal propagated by the substrate. The results are based on signals registered in the laboratory and made in field conditions during the detonation of explosive materials.

scholarly journals Harmonizing technological advances in phenomics and genomics for enhanced salt tolerance in rice from a practical perspective

Rice ◽  
2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Sarika Jaiswal ◽  
R. K. Gautam ◽  
R. K. Singh ◽  
S. L. Krishnamurthy ◽  
S. Ali ◽  
...  
Keyword(s):  
Technological Advancement ◽  
Data Generation ◽  
Rice Productivity ◽  
Non Invasive ◽  
Technological Advances ◽  
Holistic Review ◽  
Classical Work ◽  
Substantial Progress ◽  
Global Population ◽  
Made In

AbstractHalf of the global human population is dependent on rice as a staple food crop and more than 25% increase in rice productivity is required to feed the global population by 2030. With increase in irrigation, global warming and rising sea level, rising salinity has become one of the major challenges to enhance the rice productivity. Since the loss on this account is to the tune of US$12 billion per annum, it necessitates the global attention. In the era of technological advancement, substantial progress has been made on phenomics and genomics data generation but reaping benefit of this in rice salinity variety development in terms of cost, time and precision requires their harmonization. There is hardly any comprehensive holistic review for such combined approach. Present review describes classical salinity phenotyping approaches having morphological, physiological and biochemical components. It also gives a detailed account of invasive and non-invasive approaches of phenomic data generation and utilization. Classical work of rice salinity QLTs mapping in the form of chromosomal atlas has been updated. This review describes how QTLs can be further dissected into QTN by GWAS and transcriptomic approaches. Opportunities and progress made by transgenic, genome editing, metagenomics approaches in combating rice salinity problems are discussed. Major aim of this review is to provide a comprehensive over-view of hitherto progress made in rice salinity tolerance research which is required to understand bridging of phenotype based breeding with molecular breeding. This review is expected to assist rice breeders in their endeavours by fetching greater harmonization of technological advances in phenomics and genomics for better pragmatic approach having practical perspective.

scholarly journals CO2 Capture, Use, and Storage in the Cement Industry: State of the Art and Expectations

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5692 ◽  
Author(s):  
Marta G. Plaza ◽  
Sergio Martínez ◽  
Fernando Rubiera
Keyword(s):  
Co2 Capture ◽  
Carbon Capture ◽  
State Of The Art ◽  
Pilot Scale ◽  
Cement Industry ◽  
General Overview ◽  
Climate Targets ◽  
Commercial Scale ◽  
And Storage ◽  
Made In

The implementation of carbon capture, use, and storage in the cement industry is a necessity, not an option, if the climate targets are to be met. Although no capture technology has reached commercial scale demonstration in the cement sector yet, much progress has been made in the last decade. This work intends to provide a general overview of the CO2 capture technologies that have been evaluated so far in the cement industry at the pilot scale, and also about the current plans for future commercial demonstration.

Extravascular Masses Masquerading as Deep Venous Thrombosis

1993 ◽  
Vol 8 (4) ◽  
pp. 158-161 ◽  
Author(s):  
O. Thulesius ◽  
A. Thurin
Keyword(s):  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Duplex Ultrasound ◽  
Signs And Symptoms ◽  
Clinical Physiology ◽  
Characteristic Appearance ◽  
Non Invasive ◽  
The Right ◽  
Symptoms And Signs ◽  
Made In

Objective: To determine the incidence and characteristics of extravascular masses (EVM) giving rise to symptoms and signs of deep venous thrombosis (DVT). Design and technique: Routine ultrasound colour duplex scanning during a 6-month period. Patients: Three hundred and two inpatients and outpatients investigated on suspicion of DVT. Setting: Department of Clinical Physiology, which is the central non-invasive diagnostic unit of the county. Results: A diagnostis of DVT was made in 33%. EVM were detected in 14 patients (5%). In most cases the characteristic appearance on scanning was spindle-shaped (like a ‘mouse’) and mostly confined to the upper calf. These EVM were regarded as intramuscular haematoma or ruptured popliteal cysts. Conclusion: EVM of the leg are (1) a frequent cause of ‘pseudothrombosis' and can positively be identified by duplex ultrasound scanning: (2) most frequently found in the medial aspect of the right calf; and (3) often detected in patients with rheumatoid arthritis or patients on anticoagulant therapy and may give rise to signs and symptoms identical to DVT.

INVESTIGATING EXPLOSIVE SENSITIVITY TO ELECTROSTATIC DISCHARGE ACCORDING TO NATO STANDARDIZATION DOCUMENTS

2016 ◽  
pp. 39-60
Author(s):  
Maciej MISZCZAK, ◽  
Cezary Kwiecień ◽  
Sławomir Gryka
Keyword(s):  
Large Scale ◽  
Small Scale ◽  
Rocket Propellants ◽  
Smokeless Powders ◽  
Solid Explosives ◽  
Solid Rocket ◽  
Susceptibility Tests ◽  
Explosive Sensitivity ◽  
Solid Rocket Propellants ◽  
Large Scale Tests

Some small scale methods for testing the sensitivity against ESD (Electro Static Discharge) of solid explosives like primary explosives, booster explosives, high explosives, gun and rocket propellants (smokeless powders and solid rocket propellants) and pyrotechnic compositions are overviewed in the paper from the point of NATO standardisation documentation that includes Standard Agreement (STANAG) 4490 [1], Allied Ordnance Publication AOP-7 [2] and STANAG 4170 [3]. The overview is supplemented with analyses and assessments of methods and received results. ESD sensitivity tests of explosives in small scale have not been unified yet in NATO standardization documentation in contradiction to NATO large scale tests. Such unification would be beneficial as it could lead to a greater reliability of results of explosive ESD susceptibility tests performed e.g. in the frame of interlaboratory tests.

scholarly journals Non-Invasive Diagnostic Biomarkers for Alzheimer’s Disease

2021 ◽  
Vol 3 (1) ◽  
pp. 12-18
Author(s):  
Shyamasri Biswas ◽  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Early Stage ◽  
Clinical Success ◽  
Potential Game ◽  
Diagnostic Biomarkers ◽  
Non Invasive ◽  
Presymptomatic Stage ◽  
The Subject ◽  
Made In

The emergence of biomarkers in biologic fluids is considered an important milestone in the field of Alzheimer’s disease (AD) research. Biomarkers are widely considered critically important for the diagnosis and therapeutic intervention of the disease. It is believed that an early diagnosis of AD at a presymptomatic stage could provide the key for a successful intervention and treatment of AD. It is due to the reason that preventative and therapeutic strategies that are known to be AD stage-dependent can have a better chance of clinical success at a very early stage of the disease when critical neurons are not lost. To this end, current clinical trials are extensively being employed by taking advantage of different diagnostic biomarkers. While there has been notable progress in biomarkers for AD, the current research emphasis has been on exploring non-invasive biomarkers due to the advantages of cost-effectiveness, rapid diagnosis and significantly less medical procedural complexities that make these biomarkers potential game changer in AD diagnostics. Here, we present a bird eye view on the subject and discuss the progress made in important non-invasive biomarkers for AD.

scholarly journals Girding the loins? Direct evidence of the use of a medieval parchment birthing girdle from biomolecular analysis

2020 ◽  
Author(s):  
Sarah Fiddyment ◽  
Natalie J. Goodison ◽  
Elma Brenner ◽  
Stefania Signorello ◽  
Kierri Price ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Extraction Method ◽  
Sampling Method ◽  
Direct Evidence ◽  
Vaginal Fluid ◽  
Non Invasive ◽  
Biomolecular Analysis ◽  
Made In

AbstractIn this paper we describe a dry non-invasive extraction method to detect palaeoproteomic evidence from stained manuscripts. The manuscript analysed in this study is a medieval parchment birth girdle (Wellcome Collection Western MS. 632) made in England and thought to be used by pregnant women while giving birth. Using a dry non-invasive sampling method we were able to extract both human and non-human peptides from the stains, including evidence for the use of honey, cereals, ovicaprine milk and legumes. In addition, a large number of human peptides were detected on the birth roll, many of which are found in cervico-vaginal fluid. This suggests that the birth roll was actively used during childbirth. This study is the first to extract and analyse non-collagenous peptides from a parchment document using a dry non-invasive sampling method and demonstrates the potential of this type of analysis for stained manuscripts, providing direct biomolecular evidence for active use.

Mushroom Cultivation, Processing and Value-added Products: A Patent Based Review

2019 ◽  
Vol 10 (1) ◽  
pp. 3-19 ◽  
Author(s):  
Somya Singhal ◽  
Prasad Rasane ◽  
Sawinder Kaur ◽  
Umar Garba ◽  
Jyoti Singh ◽  
...  
Keyword(s):  
Value Added ◽  
Edible Mushrooms ◽  
Mushroom Cultivation ◽  
Processing Equipment ◽  
General Overview ◽  
Edible Fungus ◽  
Cultivation Practices ◽  
Nutraceutical Properties ◽  
Made In ◽  
Value Added Products

Background: Edible mushrooms are an abundant source of carbohydrates, proteins, and multiple antioxidants and phytonutrients. This paper presents a general overview on the edible fungus describing the inventions made in the field of its cultivation, equipment and value-added products. </P><P> Objective: To understand and review the innovations and nutraceutical benefits of mushrooms as well as to develop interest regarding the edible mushrooms. </P><P> Methods: Information provided in this review is based on the available research investigations and patents. </P><P> Result: Mushrooms are an edible source of a wide variety of antioxidants and phytonutrients with a number of nutraceutical properties including anti-tumor and anti-carcinogenic. Thus, several investigations are made for cultivation and improvement of the yield of mushrooms through improvisation of growth substrates and equipment used for mushroom processing. The mushroom has been processed into various products to increase its consumption, providing the health and nutritional benefit to mankind. </P><P> Conclusion: This paper summarizes the cultivation practices of mushroom, its processing equipment, methods of preservation, value-added based products, and its nutraceutical properties. The review also highlights the various scientific feats achieved in terms of patents and research publications promoting mushroom as a wholesome food.

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