Nac Activated
Prisc Chandola
(From left) U.S. Space Force Brig. Gen. Anthony Mastalir, U.S. Space Forces Indo-Pacific Command commander, U.S. Army Gen. Paul LaCamera, U.S. Forces Korea commander, and USSF Lt. Col. Joshua McCullion, U.S. Space Forces Korea inaugural commander, stand at attention during the USSFK activation ceremony at Osan Air Base, Republic of Korea, Dec. 14, 2022. The newly activated USSFK will be tasked with coordinating space operations and services such as missile warning, position navigation and timing, and satellite communications within the region. (U.S. Air Force photo by Staff Sgt. Skyler Combs)
U.S. Space Force Brig. Gen. Anthony Mastalir, U.S. Space Forces Indo-Pacific Command commander, delivers opening remarks during an activation ceremony for the U.S. Space Forces Korea at Osan Air Base, Republic of Korea, Dec. 14, 2022. The newly activated USSFK will be tasked with coordinating space operations and services such as missile warning, position navigation and timing and satellite communications within the region. (U.S. Air Force photo by Airman 1st Class Aaron Edwards)
U.S. Army Gen. Paul LaCamera, U.S. Forces Korea commander, speaks during the U.S. Space Forces Korea activation ceremony at Osan Air Base, Republic of Korea, Dec. 14, 2022. The newly activated USSFK will be tasked with coordinating space operations and services such as missile warning, position navigation and timing, and satellite communications within the region. (U.S. Air Force photo by Airman 1st Class Aaron Edwards)
U.S. Space Force Lt. Col. Joshua McCullion, U.S. Space Forces Korea inaugural commander, passes the guidon to U.S. Space Force Master Sgt. Cederic Hill, USSFK senior enlisted leader, during the USSFK activation ceremony at Osan Air Base, Republic of Korea, Dec. 14, 2022. The newly activated USSFK will be tasked with coordinating space operations and services such as missile warning, position navigation and timing, and satellite communications within the region. (U.S. Air Force photo by Airman 1st Class Aaron Edwards)
U.S. Space Force Lt. Col. Joshua McCullion, U.S. Space Forces Korea inaugural commander, gives closing remarks during the USSFK activation ceremony at Osan Air Base, Republic of Korea, Dec. 14, 2022. The newly activated USSFK will be tasked with coordinating space operations and services such as missile warning, position navigation and timing, and satellite communications within the region. (U.S. Air Force photo by Airman 1st Class Aaron Edwards)
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Further improvements in perovskite solar cells (PSCs) require better control of ionic defects in the perovskite photoactive layer during the manufacturing stage and their usage1-5. Here, we report a living passivation strategy using a hindered urea/thiocarbamate bond6-8 Lewis acid-base material (HUBLA), where dynamic covalent bonds with water and heat-activated characteristics can dynamically heal the perovskite to ensure device performance and stability. Upon exposure to moisture or heat, HUBLA generates new agents and further passivates defects in the perovskite. This passivation strategy achieved high-performance devices with a power conversion efficiency (PCE) of 25.1%. HUBLA devices retained 94% of their initial PCE for approximately 1500 hours of aging at 85 C in N2 and maintained 88% of their initial PCE after 1000 hours of aging at 85 C and 30% relative humidity (RH) in air.
Adhesion strength of the bonded crystals after curing for 1 hour. We conducted adhesion tests to assess the binding force of HUBLA between the two crystals after curing for 1 hour. The results demonstrate that the adhesion strength of the bonded crystals can be estimated to be around 2 grams.
Adhesion strength of the bonded crystals after curing for 2 hours. The results demonstrate that when the curing time of two crystals increases to 2 hours, the adhesion strength of the bonded crystals can be estimated to be around 5 grams.
Adhesion strength of the bonded crystals after curing for 8 hours. The results demonstrate that when the curing time of two crystals increases to 8 hours, the adhesion strength of the bonded crystals can be estimated to be around 10 grams.
Adhesion strength of the bonded crystals after curing for 25 hours. The results demonstrate that when the curing time of two crystals increases to 25 hours, the adhesion strength of the bonded crystals can be estimated to be around 20 grams.
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Enhanced biodegradation of contaminants within the biomatrix regenerates or frees up sorption sites allowing contaminants to further partition out of the groundwater. This allows a single application of PlumeStop to remain functional for an extended/ indefinite period of time.
To get more details on this topic read Technical Bulletin 3.1 Post Sorption Contaminant Biodegradation and Laboratory and Field Results Documenting The Biodegradation of Contaminants From Colloidal Activated Carbon (CAC)
PlumeStop technology can be applied to inhibit spreading of contaminant plumes, to protect sensitive receptors, or to prevent contaminant migration across property boundaries. It is also effective tool for control and treatment of groundwater contamination associated with low-permeability porous formations and matrix back-diffusion, promoting diffusion out of the immobile porosity while preventing groundwater impact, and for treating sites with very low contaminant concentrations. Once in place PlumeStop is expected to last for decades with minimal impact on aquifer oxidation-reduction potential, permeability and geochemistry.
PlumeStop is effective on most organic groundwater contaminants including hydrocarbons, halogenated compounds, and a wide variety of volatile organic compounds (VOCs) and semi-volatile organic compounds (SVOCs). It is also effective in treating a range of PFAS contaminants (PFOA/PFOS).
PlumeStop is composed of very fine particles of activated carbon (>1-2m) suspended in a proprietary colloidal fluid through the use of unique organic polymer dispersion chemistry. Once in the subsurface, the material behaves as a colloidal biomatrix binding to the aquifer matrix, removing contaminants from groundwater, and expediting permanent contaminant biodegradation. PlumeStop works in 4 phases: the first is dispersion within the subsurface, the second is rapid sorption of dissolved-phase contaminants, then biodegradation of contaminants within the matrix, and the final phase is regeneration of absorption sites for long-term treatment.
PlumeStop is right for your project if you are trying to treat organic groundwater contaminants including hydrocarbons, halogenated compounds, a wide variety of volatile organic compounds (VOCs) and semi-volatile organic compounds (SVOCs). PlumeStop is also effective in treating a range of PFAS contaminants (PFOA/PFOS). PlumeStop can be applied to inhibit the spreading of contaminant plumes, to protect sensitive receptors, or to prevent contaminant migration across property boundaries.
REGENESIS offers remediation professionals a suite of innovative technologies and services to treat a wide range of contaminants, including petroleum hydrocarbons, chlorinated solvents, PFAS and metals, via enhanced bioremediation, bioaugmentation, in situ chemical oxidation, reduction (ZVI), sorption, desorption, immobilization and vapor intrusion mitigation.
REGENESIS offers remediation professionals a suite of innovative technologies and services to treat a wide range of contaminants, including petroleum hydrocarbons and chlorinated solvents, via enhanced bioremediation, chemical oxidation, desorption and metals immobilization.
An oral suspension of activated charcoal should be considered in poisonings when gastrointestinal decontamination of an ingested toxin is indicated. Activated charcoal is most efficacious when given within one hour of ingestion of the toxin. Careful consideration of the contraindications should occur before treatment with activated charcoal. This activity covers the indicated uses for activated charcoal and, just as importantly, reviews situations where it is not appropriate. This activity highlights the role of the interprofessional team in caring for patients who may benefit from activated charcoal.
Objectives:
- Identify the clinical situations where activated charcoal use may be beneficial.Describe the potential adverse effects of activated charcoal therapy.Review the mechanism of action of activated charcoal therapy.Summarize interprofessional team strategies to coordinate care so that proper administering and monitoring of activated charcoal therapy are implemented, in turn improving patient outcomes.
An oral suspension of activated charcoal (AC) should merit consideration in poisonings when there is an indication for gastrointestinal decontamination of an ingested toxin, and the clinician can administer activated charcoal within 1 hour of ingestion. Careful consideration of the contraindications (see below) should occur before activated charcoal treatment.[1][2][3] While activated charcoal has been shown to significantly reduce the absorption of many ingested toxins when given within the first-hour post-ingestion, no studies have shown patient-oriented outcome benefits such as mortality, morbidity, or length of hospital stay with the use of activated charcoal.[4]
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