scholarly journals Low Cost Space Demonstration for a Single-Person Spacecraft

2011 ◽  
Author(s):  
Brand Griffin ◽  
Charles Dischinger
Keyword(s):  
Low Cost ◽  
Single Person

scholarly journals Testing the accuracy of low-cost data streams for determining single-person office occupancy and their use for energy reduction of building services

2017 ◽  
Vol 135 ◽  
pp. 137-147 ◽  
Author(s):  
Guy R. Newsham ◽  
Henry Xue ◽  
Chantal Arsenault ◽  
Julio J. Valdes ◽  
Greg J. Burns ◽  
...  
Keyword(s):  
Data Streams ◽  
Low Cost ◽  
Energy Reduction ◽  
Cost Data ◽  
Single Person

scholarly journals Interoperable System for COVID-19

2021 ◽  
Author(s):  
Yash Chaudhari ◽  
Shelly Sachdeva ◽  
Lakshita Aggarwal
Keyword(s):  
Health Care ◽  
Health Care Workers ◽  
Human Error ◽  
Low Cost ◽  
Medical Data ◽  
Digital Form ◽  
Health Records ◽  
Technology Sector ◽  
Single Person ◽  
Care Workers

Abstract In the year 2020, the world halted due to the spread of COVID-19 or SARS-CoV2 which was first identified in Wuhan, China. Since then, it has caused a plethora of problems around the globe such as the loss of millions of lives. India was one of the countries which were majorly affected by this pandemic. Thousands lost their lives and millions had to be hospitalized and taken into medical care. Due to this, there is an abundance of unorganized and redundant medical data in the Health Information Technology sector. Many hospitals contain various mismatched health records of a single person. We attempt to develop an Interoperable System specifically for COVID-19 using the openEHR standard to organize health records in digital form by creating Electronic Health Records. These records can be accessed and shared by multiple hospitals and clinics to reduce the redundancy of health records. This would establish effective communications between different hospitals and greatly make data sharing, efficient and low cost. Standardization can hugely affect medical errors. Interoperability provides hospitals to share across many channels and help Health care workers to detect discrepancies easily. Lives that are lost due to human error in the health care system can be minimized or even completely avoided. The number of hospitals using interoperable standards is still low and we hope that this paper will help make a change towards following the standard.

Low-Cost Median Barrier Gate

2012 ◽  
Vol 2309 (1) ◽  
pp. 105-113 ◽  
Author(s):  
Roger P. Bligh ◽  
Dusty R. Arrington ◽  
Nauman M. Sheikh ◽  
Rory Meza ◽  
Chiara Silvestri
Keyword(s):  
Low Cost ◽  
General Purpose ◽  
The Other ◽  
Managed Lanes ◽  
Steel Tubes ◽  
Impact Performance ◽  
Single Person ◽  
Level 3 ◽  
Test Level ◽  
Limit Access

Median barriers are commonly used to separate opposing lanes of traffic on divided highways and to separate managed lanes from general purpose lanes. Concrete median barriers (CMBs) are often preferred on urban freeways with narrow medians because of their minimal deflection and low maintenance. However, long, continuous runs of CMBs limit access of emergency and maintenance vehicles to the other side of a roadway or a managed lane. Implementation of crashworthy median barrier gates at these locations can maintain the desired level of median protection for motorists while offering improved cross-median access for emergency and maintenance vehicles. A new median barrier gate was developed and crash tested. The gate spans a 30-ft opening in a CMB and consists of two vertically stacked 12- x 12- x ¼-in. steel tubes connected to steel end brackets with 2¼-in. diameter steel pins. The gate is economical to fabricate and install. It can be manually operated by a single person and is designed to accommodate reversible traffic flow on both sides of the median and be operable in both directions on each end. The median barrier gate satisfies the criteria for impact performance of Test Level 3 of the Manual for Assessing Safety Hardware and is considered suitable for implementation on divided highways at locations where cross-median access is desired.

Design and Development of Mechanically Actuated Wheelchair Convertible to Bed

2012 ◽  
Author(s):  
Naman S. Kothari ◽  
Mayank R. Porwal ◽  
Mayur O. Kacholiya
Keyword(s):  
Quality Function Deployment ◽  
Low Cost ◽  
Medical Institutions ◽  
Single Person ◽  
Mechanical Devices ◽  
Hierarchy Process ◽  
Efficient Transmission ◽  
Mechanical Actuation ◽  
Development And Evolution ◽  
Made In

Wheelchair design for patient safety and comfort has been one of the most concerned topics for practitioners of mechanical engineering and bio-engineers. In the present scenario of medical institutions, transferring of immobilized patients from bed to wheelchair and vice-versa for numerous chronic and emergency activities is a very labor intensive and tedious job. Various attempts have been made in addressing this problem. These were modeled using simple mechanical devices providing the conversion. But still the issue of easy and controlled transition of adjusting the position of wheelchair’s head and base part according to patient’s needs and its full conversion has not been modeled and devised completely. So arises the need for a suitable, efficient and complete designing and development of such a device. This paper focuses on the design and manufacturing of a safe, reliable and low cost wheelchair which is convertible to a bed and vice-versa using a novel mechanical actuation by the effort of a single person. It models out a process of development and evolution of a reliable and verified design. Key areas focused upon are compact and efficient transmission system, discrete angular control of head and leg space with efficient load distribution while optimizing the size, cost (initial, service and disposal) and weight of the device. Further, the model is analyzed and justified by applying Quality Function Deployment (QFD) and Analytical Hierarchy Process (AHP) methods.

scholarly journals Interoperable System for COVID-19

2021 ◽  
Author(s):  
Yash Chaudhari ◽  
Shelly Sachdeva ◽  
Lakshita Aggarwal
Keyword(s):  
Health Care ◽  
Health Care Workers ◽  
Human Error ◽  
Low Cost ◽  
Medical Data ◽  
Digital Form ◽  
Health Records ◽  
Technology Sector ◽  
Single Person ◽  
Care Workers

Abstract In the year 2020, the world halted due to the spread of COVID-19 or SARS-CoV2 which was first identified in Wuhan, China. Since then, it has caused a plethora of problems around the globe such as the loss of millions of lives. India was one of the countries which were majorly affected by this pandemic. Thousands lost their lives and millions had to be hospitalized and taken into medical care. Due to this, there is an abundance of unorganized and redundant medical data in the Health Information Technology sector. Many hospitals contain various mismatched health records of a single person. We attempt to develop an Interoperable System specifically for COVID-19 using the openEHR standard to organize health records in digital form by creating Electronic Health Records. These records can be accessed and shared by multiple hospitals and clinics to reduce the redundancy of health records. This would establish effective communications between different hospitals and greatly make data sharing, efficient and low cost. Standardization can hugely affect medical errors. Interoperability provides hospitals to share across many channels and help Health care workers to detect discrepancies easily. Lives that are lost due to human error in the health care system can be minimized or even completely avoided. The number of hospitals using interoperable standards is still low and we hope that this paper will help make a change towards following the standard.

scholarly journals Interoperable System for COVID-19

2021 ◽  
Author(s):  
Yash Chaudhari ◽  
Shelly Sachdeva ◽  
Lakshita Aggarwal
Keyword(s):  
Health Care ◽  
Health Care Workers ◽  
Human Error ◽  
Low Cost ◽  
Medical Data ◽  
Digital Form ◽  
Health Records ◽  
Technology Sector ◽  
Single Person ◽  
Care Workers

Abstract In the year 2020, the world halted due to the spread of COVID-19 or SARS-CoV2 which was first identified in Wuhan, China. Since then, it has caused a plethora of problems around the globe such as the loss of millions of lives. India was one of the countries which were majorly affected by this pandemic. Thousands lost their lives and millions had to be hospitalized and taken into medical care. Due to this, there is an abundance of unorganized and redundant medical data in the Health Information Technology sector. Many hospitals contain various mismatched health records of a single person. We attempt to develop an Interoperable System specifically for COVID-19 using the openEHR standard to organize health records in digital form by creating Electronic Health Records. These records can be accessed and shared by multiple hospitals and clinics to reduce the redundancy of health records. This would establish effective communications between different hospitals and greatly make data sharing, efficient and low cost. Standardization can hugely affect medical errors. Interoperability provides hospitals to share across many channels and help Health care workers to detect discrepancies easily. Lives that are lost due to human error in the health care system can be minimized or even completely avoided. The number of hospitals using interoperable standards is still low and we hope that this paper will help make a change towards following the standard.

scholarly journals A rapid, low cost, and highly sensitive SARS-CoV-2 diagnostic based on whole genome sequencing

2020 ◽  
Author(s):  
Brian Glenn St Hilaire ◽  
Neva C. Durand ◽  
Namita Mitra ◽  
Saul Godinez Pulido ◽  
Ragini Mahajan ◽  
...  
Keyword(s):  
Drug Targets ◽  
De Novo ◽  
Low Cost ◽  
Diagnostic Methods ◽  
Nasopharyngeal Swab ◽  
De Novo Genome Assembly ◽  
Global Pandemic ◽  
Single Person ◽  
Novel Coronavirus ◽  
Almost All

AbstractEarly detection of infection with SARS-CoV-2 is key to managing the current global pandemic, as evidence shows the virus is most contagious on or before symptom onset. Here, we introduce a low-cost, high-throughput method for diagnosis of SARS-CoV-2 infection, dubbed Pathogen-Oriented Low-Cost Assembly & Re-Sequencing (POLAR), that enhances sensitivity by aiming to amplify the entire SARS-CoV-2 genome rather than targeting particular viral loci, as in typical RT-PCR assays. To achieve this goal, we combine a SARS-CoV-2 enrichment method developed by the ARTIC Network (https://artic.network/) with short-read DNA sequencing and de novo genome assembly. We are able to reliably (>95% accuracy) detect SARS-CoV-2 at concentrations of 84 genome equivalents per milliliter, better than the reported limits of detection of almost all diagnostic methods currently approved by the US Food and Drug Administration. At higher concentrations, we are able to reliably assemble the SARS-CoV-2 genome in the sample, often with no gaps and perfect accuracy. Such genome assemblies enable the spread of the disease to be analyzed much more effectively than would be possible with an ordinary yes/no diagnostic, and can help identify vaccine and drug targets. Finally, we show that POLAR diagnoses on 10 of 10 clinical nasopharyngeal swab samples (half positive, half negative) match those obtained in a CLIA-certified lab using the Center for Disease Control’s 2019-Novel Coronavirus test. Using POLAR, a single person can process 192 samples over the course of an 8-hour experiment, at a cost of ∼$30/patient, enabling a 24-hour turnaround with sequencing and data analysis time included. Further testing and refinement will likely enable greater enhancements in the sensitivity of the above approach.

Decomposition of the metastable beta titanium alloy Ti-15-3

1983 ◽  
Vol 41 ◽  
pp. 264-265
Author(s):  
Y. L. Chen ◽  
S. Fujlshiro
Keyword(s):  
Low Cost ◽  
High Strength ◽  
Alpha Phase ◽  
Thick Sheet ◽  
Omega Phase ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Beta Matrix ◽  
Metastable Beta ◽  
Very High

Metastable beta titanium alloys have been known to have numerous advantages such as cold formability, high strength, good fracture resistance, deep hardenability, and cost effectiveness. Very high strength is obtainable by precipitation of the hexagonal alpha phase in a bcc beta matrix in these alloys. Precipitation hardening in the metastable beta alloys may also result from the formation of transition phases such as omega phase. Ti-15-3 (Ti-15V- 3Cr-3Al-3Sn) has been developed recently by TIMET and USAF for low cost sheet metal applications. The purpose of the present study was to examine the aging characteristics in this alloy.The composition of the as-received material is: 14.7 V, 3.14 Cr, 3.05 Al, 2.26 Sn, and 0.145 Fe. The beta transus temperature as determined by optical metallographic method was about 770°C. Specimen coupons were prepared from a mill-annealed 1.2 mm thick sheet, and solution treated at 827°C for 2 hr in argon, then water quenched. Aging was also done in argon at temperatures ranging from 316 to 616°C for various times.

Chromic Acid Etching of Polyethylene

1973 ◽  
Vol 31 ◽  
pp. 72-73
Author(s):  
J. D. Muzzy ◽  
R. D. Hester ◽  
J. L. Hubbard
Keyword(s):  
Chromic Acid ◽  
Low Cost ◽  
Acid Etching ◽  
Crystalline Morphology ◽  
Bulk Specimen ◽  
Morphological Studies ◽  
Perfect Form ◽  
Molecular Length ◽  
Lamellar Texture ◽  
Cost Studies

Polyethylene is one of the most important plastics produced today because of its good physical properties, ease of fabrication and low cost. Studies to improve the properties of polyethylene are leading to an understanding of its crystalline morphology. Polyethylene crystallized by evaporation from dilute solutions consists of thin crystals called lamellae. The polyethylene molecules are parallel to the thickness of the lamellae and are folded since the thickness of the lamellae is much less than the molecular length. This lamellar texture persists in less perfect form in polyethylene crystallized from the melt.Morphological studies of melt crystallized polyethylene have been limited due to the difficulty of isolating the microstructure from the bulk specimen without destroying or deforming it.

Glass Knife Geometry as Seen by the SEM

1971 ◽  
Vol 29 ◽  
pp. 454-455
Author(s):  
J. Temple Black
Keyword(s):  
Low Cost ◽  
Amorphous Material ◽  
Stress Concentrations ◽  
Basic Tool ◽  
Tool Materials ◽  
Optical Inspection ◽  
Surface Flaws ◽  
Slip Planes ◽  
Glass Knife ◽  
Diamond Knife

In ultramicrotomy, the two basic tool materials are glass and diamond. Glass because of its low cost and ease of manufacture of the knife itself is still widely used despite the superiority of diamond knives in many applications. Both kinds of knives produce plastic deformation in the microtomed section due to the nature of the cutting process and microscopic chips in the edge of the knife. Because glass has no well defined slip planes in its structure (it's an amorphous material), it is very strong and essentially never fails in compression. However, surface flaws produce stress concentrations which reduce the strength of glass to 10,000 to 20,000 psi from its theoretical or flaw free values of 1 to 2 million psi. While the microchips in the edge of the glass or diamond knife are generally too small to be observed in the SEM, the second common type of defect can be identified. This is the striations (also termed the check marks or feathers) which are always present over the entire edge of a glass knife regardless of whether or not they are visable under optical inspection. These steps in the cutting edge can be observed in the SEM by proper preparation of carefully broken knives and orientation of the knife, with respect to the scanning beam.

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