Clearly, something has to change in order for latency to get low enough for AR/VR to work well. On the tracking end, the obvious solution is use both optical tracking and an IMU, via sensor fusion. The IMU can be used to provide very low-latency state, and optical. ![]() ![]()
Flow Control has honored the fluid handling industry’s ongoing commitment to manufacturing excellence through our annual Innovation Awards for two decades. Each year, we are proud to present the latest innovations and technology breakthroughs in our industry based on an open nomination and reader.Best in flow: Innovation Awards 2. Flow Control has honored the fluid handling industry. Each year, we are proud to present the latest innovations and technology breakthroughs in our industry based on an open nomination and reader voting process. Congratulations to this year. For the first time, a thermal mass flow instrument is powered with a single AA battery that will run for up to six months. The gas mass flowmeter can be used as a mobile calibration instrument or in any place where power supply is unavailable. The device offers high accuracy (1 percent) and dynamics (1. Honorable mentions include Endress+Hauser. Thanks to everyone who participated in this year. We see more and more demand for regular interval sampling that needs to be consistent and reliable. ![]() Sample specialists have discovered the simplicity and economics of the V. All 5. 0- plus variables can be adjusted through a built- in touchscreen. No need exists to connect the unit to a computer unless you want to update the firmware or power the unit through its USB connection. Available for all kind of gases in ranges from 0 to 1. Overall, users appreciate the economics, quality and reliability of this device. Traveling engineers use this portable, battery- powered unit to adjust gas flow settings, test for leaks and verify other flowmeters. Once the battery life reaches its end, batteries can easily be replaced with widely available AA batteries. As an alternative, the unit can be powered through the USB cable by a power bank or a USB port on a laptop or PC. In the following application, users make use of the alarm module expansion that gives them three alarm points, two I/O inputs and an external power supply. The alarm module replaces the battery compartment and is integrated in the compact 2 at the back with a 3- meter, 1. Making sample- taking simple. In the analytical world, the red- y compact 2 is used as the heart of a reliable automatic, low- cost gas sample- taking device. Emission or environment measurements often demand periodic samples of a fixed amount of gas, which are collected in a container or sample bag. With its optional smart alarm module, the compact 2 has the complete solution without the need for a programmable logic controller (PLC) to control the process. The system runs on 2. Vdc). The V. We will also make use of the timer functions and the ability to reset the alarms and totalizer with an I/O input on the alarm module. Alarm 1 is programmed as a totalizer alarm with the sample volume we want to collect in each sample, for example, 1. In that alarm function, the alarm duration can be programmed between 1. This time sets the time between the samples. Once the process starts, the solenoid will open and a preset amount of gas will flow into the sample bag or container. Once the defined amount is reached, the Alarm 1 will open and close the solenoid, and the gas flow will stop. Because of the programmed Alarm 1 duration setting, the alarm will stay active for the preprogrammed time, in our example, one hour. Once this hour is over, Alarm 1 is programmed to automatically reset itself and the counter goes back to zero. The solenoid is activated again, the gas will flow and the totalizer starts counting again until the preprogrammed value is reached. The process starts all over again. The process will continue and every hour one sample of 1. Figure 1. Wiring diagram periodic gas sample system. Alarm 3 is used for diagnostics. The alarm will sound if: The sample bag/container gets full. Water enters the sample line. The flow during sampling is too low (sample line blockage)The flow is too high (process pressure too high)In this case, the user can push the reset button to deactivate the alarm and continue the process. Many other variations are possible. Every system is a bit different; you can find additions like purging, filtering, pressure reduction, gas drying and more out in the field. Figure 1 shows a simplified diagram as an example. Many users of these systems obtain a battery- powered, high accuracy compact 2 to verify if the flowmeter in the field is working properly or if it needs calibration or cleaning. The red- y compact 2 has a big internal diameter flow channel, has a low pressure drop, is temperature- compensated and measures the mass flow, independent of changes in pressure and temperature. Flexibility. It is impossible to describe all processes in which these type of flowmeters are used, but if you see a VA meter for gas and you want to improve a process, the experienced V. Below are two more applications from users. Simple gas mixing applications. The compact 2 is available as a meter or with a built- in, high- resolution, positive shut- off needle valve that offers precise control. Several customers switched to a compact 2 with needle valve as an alternative to a VA meter. VA meters have several advantages, but the main con is that they are extremely sensitive to changes in gas pressure and temperature. Pressure change of 1. The red- y compact 2 does not have these problems. It measures the mass and is independent of pressure and temperature, which means that even if the process gas temperature or pressure changes, the instrument still gives an accurate flow value. For a simple, low- cost but accurate gas mixer, the compact 2 may be the ideal instrument. With its single AA battery- operation, it is also convenient in the field. Up to three gases can be programmed in every unit. Manual gas mixing system. Consumption monitoring. The compact 2 has two built- in totalizers and the menu can be protected with a password. This makes the unit suitable for consumption measurements. With the 1. 00- to- 1 turndown, it can measure the small and big flows used in your departments. Customer- specific turndown ratios higher than 1. Monitoring is more than assigning costs to different applications; it is also about safety and economics. By monitoring gas usage, users can detect leaks and solve the problems before they cost a lot of money or, even more important, create an explosive atmosphere in the laboratory. Conclusion. These are just three of the many and extensive possibilities of the red- y compact 2 by V. Customers around the globe make use of its advantages in the analytical field, in research and development, in light industrial applications, in semiconductor segments and other applications. Very often we hear from the users, . Local service centers in the U. S., China and Europe provide after- sales support. Image courtesy of Endress+Hauser. Find out more about the red- y compact 2, the company and its other products at vogtlin. Ultrasonic radar transmitter provides reliability in harsh conditions. Honorable mention: Endress+Hauser. A customer was having issues with its existing ultrasonic level transmitters that were installed to monitor the level of water bodies such as rivers, lakes, open basins, etc. The transmitters were installed in outdoor applications under bridges and dams. During times of high winds, fluctuating temperatures and other harsh environmental conditions, the existing mechanical ultrasonic signal would be blown away from the transducer. When the signal was lost, operators would have to go out, find the problem and fix it manually. This increased the cost of ownership and downtime. The customer needed an economical solution. Endress+Hauser replaced the existing ultrasonic transmitters with the cost- effective Micropilot FMR1. FMR2. 0 radar transmitter. The electromechanical signal from the Micropilot radar transmitter is not susceptible to influences of the changing harsh environmental conditions and cross winds, making it suitable for any environment. This provided the customer with a long- term, stable, reliable and accurate measurement. The non- contact radar technology resulted in lower maintenance costs. The operator no longer had to find the problems and fix them when the signal was lost. The FMR1. 0/FMR2. HART or wireless via the Smart. Blue Bluetooth app. The economical, non- contact radar transmitter with Bluetooth commissioning, operations and maintenance app sets new standards in the water/wastewater and utility industry. The FMR1. 0/2. 0 features safe and secure wireless remote access via the free Smart. Blue app for i. OS and Android devices even in hazardous areas and those difficult to reach, reducing time and costs through fast, simple setup for the end user. Smart. Blue provides users with diagnostic and maintenance information via signal curve, increasing customer plant availability because of easy and fast access for commissioning. The FMR1. 0/FMR2. Smart. Blue app provides status information of various devices at a glance with a live list to allow efficient maintenance. Unique to Endress+Hauser, the radar chip design with integrated radio frequency components and direct emission transceiver makes the FMR1. FMR2. 0 the most compact radar transmitter in its class. The compact design allows for simple installation where space is limited and provides an extended application scope for radar technology. For more information on the Micropilot FMR1. FMR2. 0, visit us. Image courtesy of Sierra Instruments. Vortex flowmeter with industry- first apps improves crab processing for large seafood plant. Honorable mention. Getting the crab from the sea to the plate is a complex process that requires meticulous attention to details. Product quality and health safety is paramount in crab processing. To properly process thousands of pounds of freshly caught crab, the highest grade of steam, clean steam, usually raised from purified water in a dedicated clean steam generator, is used. Crabs are in direct contact with the steam to cook at an exact temperature that assures the crab will be safe to eat when it reaches consumers. The clean steam is created using a secondary generator with a controlled pumped- in water system. Pipework to handle the clean steam must be stainless steel with components that eliminate the potential for the corrosion of steam traps, valves and pipeline equipment. Updated US Public Health Service Guidelines for the Management of Occupational Exposures to Human Immunodeficiency Virus and Recommendations for Postexposure Prophylaxis on JSTORUS Public Health Service Guideline. Kimberly A. Struble, Pharm. D,3. Vasavi Thomas, RPh, MPH,4. Laura W. Cheever, MD, Sc. M,5. Ahmed Gomaa, MD, Sc. D, MSPH,6. Adelisa L. Panlilio, MD,1 and US Public Health Service Working Group. Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia. Office of the Deputy Director for Clinical Care, Clinical Center, National Institutes of Health, Bethesda, Maryland. Division of Antiviral Products, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland. Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia. HIV/AIDS Bureau, Health Resources and Services Administration, Rockville, Maryland. Division of Surveillance, Hazard Evaluation, and Health Studies, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Cincinnati, Ohio. Address correspondence to David T. Kuhar, MD, Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 1. Clifton Road, NE, MS A- 3. Atlanta, GA 3. 03. This report updates US Public Health Service recommendations for the management of healthcare personnel (HCP) who experience occupational exposure to blood and/or other body fluids that might contain human immunodeficiency virus (HIV). Although the principles of exposure management remain unchanged, recommended HIV postexposure prophylaxis (PEP) regimens and the duration of HIV follow- up testing for exposed personnel have been updated. This report emphasizes the importance of primary prevention strategies, the prompt reporting and management of occupational exposures, adherence to recommended HIV PEP regimens when indicated for an exposure, expert consultation in management of exposures, follow- up of exposed HCP to improve adherence to PEP, and careful monitoring for adverse events related to treatment, as well as for virologic, immunologic, and serologic signs of infection. To ensure timely postexposure management and administration of HIV PEP, clinicians should consider occupational exposures as urgent medical concerns, and institutions should take steps to ensure that staff are aware of both the importance of and the institutional mechanisms available for reporting and seeking care for such exposures. The following is a summary of recommendations: (1) PEP is recommended when occupational exposures to HIV occur; (2) the HIV status of the exposure source patient should be determined, if possible, to guide need for HIV PEP; (3) PEP medication regimens should be started as soon as possible after occupational exposure to HIV, and they should be continued for a 4- week duration; (4) new recommendation. Both individual healthcare providers and the institutions that employ them should work to ensure adherence to the principles of Standard Precautions,1 including ensuring access to and consistent use of appropriate work practices, work practice controls, and personal protective equipment. For instances in which an occupational exposure has occurred, appropriate postexposure management is an important element of workplace safety. This document provides updated recommendations concerning the management of occupational exposures to HIV. The use of antiretrovirals as postexposure prophylaxis (PEP) for occupational exposures to HIV was first considered in guidelines issued by the Centers for Disease Control and Prevention (CDC) in 1. In 1. 99. 6, the first US Public Health Service (PHS) recommendations advocating the use of PEP after occupational exposure to HIV were published; these recommendations have been updated 3 times. Since publication of the most recent guidelines in 2. Food and Drug Administration (FDA), and additional information has become available regarding both the use and the safety of agents previously recommended for administration for HIV PEP. As a direct result of 7 years. These challenges include difficulties in determining levels of risk of HIV transmission for individual exposure incidents, problems determining the appropriate use of 2 versus 3 (or more) drugs in PEP regimens, the high frequency of side effects and toxicities associated with administration of previously recommended drugs, and the initial management of healthcare personnel (HCP) with exposures to a source patient whose HIV infection status was unknown. The PHS working group has attempted to address both the new information that has been developed and the challenges associated with the practical implementation of the 2. This report encourages using HIV PEP regimens that are optimally tolerated, eliminates the recommendation to assess the level of risk associated with individual exposures to determine the number of drugs recommended for PEP, modifies and expands the list of antiretroviral medications that can be considered for use as PEP, and offers an option for concluding HIV follow- up testing of exposed personnel earlier than 6 months after exposure. This report also continues to emphasize the following: (1) primary prevention of occupational exposures; (2) prompt management of occupational exposures and, if indicated, initiation of PEP as soon as possible after exposure; (3) selection of PEP regimens that have the fewest side effects and that are best tolerated by prophylaxis recipients; (4) anticipating and preemptively treating side effects commonly associated with taking antiretroviral drugs; (5) attention to potential interactions involving both drugs that could be included in HIV PEP regimens and other medications that PEP recipients might be taking; (6) consultation with experts on postexposure management strategies (especially determining whether an exposure has actually occurred and selecting HIV PEP regimens, particularly when the source patient is antiretroviral treatment experienced); (7) HIV testing of source patients (without delaying PEP initiation in the exposed provider) using methods that produce rapid results; and (8) counseling and follow- up of exposed HCP. Recommendations concerning the management of occupational exposures to hepatitis B virus and/or hepatitis C virus (HCV) have been published previously. Recommendations for nonoccupational (eg, sexual, pediatric, and perinatal) HIV exposures also have been published previously. Methods. In 2. 01. CDC reconvened the interagency PHS working group to plan and prepare an update to the 2. Updated U. S. Public Health Service Guidelines for the Management of Occupational Exposures to HIV and Recommendations for Postexposure Prophylaxis. The PHS working group was comprised of members from the CDC, the FDA, the Health Resources and Services Administration, and the National Institutes of Health. Names, credentials, and affiliations of the PHS working group members are listed as the byline of this guideline. The working group met twice a month to monthly to create a plan for the update as well as draft the guideline. A systematic review of new literature that may have become available since 2. PEP or an optimal PEP regimen for occupational exposures to HIV. Because of the low risk of transmission associated with occupational exposures (ie, approximately 0. PEP is practical. In light of the absence of such randomized trials, the CDC convened a meeting of the interagency PHS working group and an expert panel of consultants in July 2. HIV PEP and develop the recommendations for this update. The expert panel consisted of professionals in academic medicine considered to be experts in the treatment of HIV- infected individuals, the use of antiretroviral medications, and PEP. Names, credentials, and affiliations of the expert panel of consultants are listed in . An FDA representative presented a review of the new medications that have become available since 2. HIV- infected individuals, information about medication tolerability and toxicity, and the use of these medications during pregnancy. These presentations were followed by a discussion of the topics listed above. Among the challenges discussed regarding implementation of the 2. HIV transmission for individual exposure incidents, which in turn determined the number of drugs recommended for HIV PEP. The consensus of the meeting participants was to no longer recommend exposure risk stratification (discussed in detail in . To update the drug choices for PEP, all drugs available for the treatment of HIV- infected individuals were discussed with regard to tolerability, side effects, toxicity, safety in pregnancy and lactation, pill burden, and frequency of dosing. A hierarchy of recommended drugs/regimens was developed at the meeting and utilized in creating the PEP regimen recommendations (Appendixes A and B) in these guidelines. Among other topics identified as needing an update were the acceptable HIV testing platforms available for source patient and follow- up testing of exposed HCP; the timing of such testing, depending on the platform used; and the potential utility of source patient drug- resistance information/testing in PEP regimens. After the expert consultation, the expert panelists received draft copies of these guidelines as they were updated and provided insights, information, suggestions, and edits and participated in subsequent teleconferences with the PHS working group, to assist in developing these recommendations. Proposed recommendation updates were presented to the Healthcare Infection Control Practices Advisory Committee in November 2. June 2. 01. 21. 4 during public meetings.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
March 2018
Categories |