69 research outputs found
Theoretical model and practical exploration of digital technology-empowered green management of water resource in semiconductor manufacturing industry
[Objective] This study focused on the green management of water resources in the semiconductor manufacturing industry based on digital technology. It analyzed the establishment of a comprehensive framework for green management of water resources from the perspective of technological empowerment, providing theoretical paradigm and practical guidance for the application of digital technology and the green development in the semiconductor manufacturing industry. [Methods] By systematically reviewing relevant literature on the domestic and international levels and incorporating multidisciplinary solutions, an innovative circular economy model was constructed. The article established a water resource green intelligent management system for semiconductor manufacturing enterprises, and used a case study method to select a typical semiconductor manufacturing enterprise, then deeply analyzed the application process of the technological framework. [Results] (1) Based on the “reduction, reuse, recycle” 3R principle of the circular economy model, and utilized the systematic analysis method, a theoretical model for the digital technology-empowered green management of water resources framework was built. (2) The theoretical model explained the connotation, characteristics, and functions of digital technology empowerment from the source to the end of each production process. It analyzed the specific measures of each enterprise under the 3R principle, and revealed the action path of data technology in empowering green management of water resources. (3) Through a case study of a semiconductor company in East China, the practical exploration of intelligent water resources green management technology solutions was achieved. The trend of data change over the past three years indicated a basic positive correlation between digital technology innovation and the benefits of green management of water resources, with higher benefits corresponding to higher innovation levels. [Conclusion] Digital technology can provide innovative green water resources management solutions for semiconductor manufacturing companies, enhancing their competitiveness. For the new development stage of the Chinese semiconductor manufacturing industry, it has significant implications for strengthening the dominant position of digital technology innovation and improving intelligent green management of water resources
Potential of Core-Collapse Supernova Neutrino Detection at JUNO
JUNO is an underground neutrino observatory under construction in Jiangmen, China. It uses 20kton liquid scintillator as target, which enables it to detect supernova burst neutrinos of a large statistics for the next galactic core-collapse supernova (CCSN) and also pre-supernova neutrinos from the nearby CCSN progenitors. All flavors of supernova burst neutrinos can be detected by JUNO via several interaction channels, including inverse beta decay, elastic scattering on electron and proton, interactions on C12 nuclei, etc. This retains the possibility for JUNO to reconstruct the energy spectra of supernova burst neutrinos of all flavors. The real time monitoring systems based on FPGA and DAQ are under development in JUNO, which allow prompt alert and trigger-less data acquisition of CCSN events. The alert performances of both monitoring systems have been thoroughly studied using simulations. Moreover, once a CCSN is tagged, the system can give fast characterizations, such as directionality and light curve
Detection of the Diffuse Supernova Neutrino Background with JUNO
As an underground multi-purpose neutrino detector with 20 kton liquid scintillator, Jiangmen Underground Neutrino Observatory (JUNO) is competitive with and complementary to the water-Cherenkov detectors on the search for the diffuse supernova neutrino background (DSNB). Typical supernova models predict 2-4 events per year within the optimal observation window in the JUNO detector. The dominant background is from the neutral-current (NC) interaction of atmospheric neutrinos with 12C nuclei, which surpasses the DSNB by more than one order of magnitude. We evaluated the systematic uncertainty of NC background from the spread of a variety of data-driven models and further developed a method to determine NC background within 15\% with {\it{in}} {\it{situ}} measurements after ten years of running. Besides, the NC-like backgrounds can be effectively suppressed by the intrinsic pulse-shape discrimination (PSD) capabilities of liquid scintillators. In this talk, I will present in detail the improvements on NC background uncertainty evaluation, PSD discriminator development, and finally, the potential of DSNB sensitivity in JUNO
Real-time Monitoring for the Next Core-Collapse Supernova in JUNO
Core-collapse supernova (CCSN) is one of the most energetic astrophysical
events in the Universe. The early and prompt detection of neutrinos before
(pre-SN) and during the SN burst is a unique opportunity to realize the
multi-messenger observation of the CCSN events. In this work, we describe the
monitoring concept and present the sensitivity of the system to the pre-SN and
SN neutrinos at the Jiangmen Underground Neutrino Observatory (JUNO), which is
a 20 kton liquid scintillator detector under construction in South China. The
real-time monitoring system is designed with both the prompt monitors on the
electronic board and online monitors at the data acquisition stage, in order to
ensure both the alert speed and alert coverage of progenitor stars. By assuming
a false alert rate of 1 per year, this monitoring system can be sensitive to
the pre-SN neutrinos up to the distance of about 1.6 (0.9) kpc and SN neutrinos
up to about 370 (360) kpc for a progenitor mass of 30 for the case
of normal (inverted) mass ordering. The pointing ability of the CCSN is
evaluated by using the accumulated event anisotropy of the inverse beta decay
interactions from pre-SN or SN neutrinos, which, along with the early alert,
can play important roles for the followup multi-messenger observations of the
next Galactic or nearby extragalactic CCSN.Comment: 24 pages, 9 figure
A pH-Mediated Highly Selective System Enabling Simultaneous Analysis of Circulating RNAs Carried by Extracellular Vesicles and Lipoproteins
Extracellular vesicles (EVs) and
lipoproteins (LPPs) serve as important
carriers of circulating miRNAs in peripheral blood, offering immense
potential for disease diagnosis and therapeutic interventions. Due
to their shared physicochemical attributes, EVs and LPPs are frequently
coisolated, potentially leading to misunderstandings regarding their
distinct functional roles in physiological and pathological processes.
Here, we report a highly selective magnetic system based on the pH-mediated
affinity displayed by cibacron blue (CB) toward EVs and LPPs, enabling
successful separation and collection of these two nanoparticles without
cross-contamination for subsequent circulating RNA analysis. First,
we found that CB-modified magnetic beads (CBMBs) exhibit a strong
affinity toward LPP particles while displaying little interaction
with EVs in standard samples under physiological pH conditions. We
further demonstrate that the affinity between CB molecules and bionanoparticles
in plasma samples is highly pH-dependent. Specifically, CBMBs show
affinities for both LPP and EV particles under neutral and acidic
conditions. However, at basic pH levels, CB molecules selectively
bind only to LPP particles. Consequently, the remaining EV particles
present in plasma are subsequently isolated by using titanium dioxide-modified
beads (TiMBs) through phospholipid affinity. The simultaneous analysis
of the transcriptomic contents of EV and LPP reveals clear differences
in their small RNA profiles, with the differentially expressed RNAs
reflecting distinct biological processes. Significantly, in a proof-of-concept
study, we successfully demonstrated a strong correlation between miRNAs
carried by both EV and LPP particles with the occurrence of ocular
neovascularization during the progression of diabetic retinopathy.
The involved miRNAs may serve as potential biomarkers for DR diagnostics
and severity classification. To sum up, this pH-mediated separation
system is not only user-friendly but also highly compatible, rendering
it a potent tool for probing the molecular compositions, biomarkers,
and underlying biological mechanisms of EVs and LPPs
A pH-Mediated Highly Selective System Enabling Simultaneous Analysis of Circulating RNAs Carried by Extracellular Vesicles and Lipoproteins
Extracellular vesicles (EVs) and
lipoproteins (LPPs) serve as important
carriers of circulating miRNAs in peripheral blood, offering immense
potential for disease diagnosis and therapeutic interventions. Due
to their shared physicochemical attributes, EVs and LPPs are frequently
coisolated, potentially leading to misunderstandings regarding their
distinct functional roles in physiological and pathological processes.
Here, we report a highly selective magnetic system based on the pH-mediated
affinity displayed by cibacron blue (CB) toward EVs and LPPs, enabling
successful separation and collection of these two nanoparticles without
cross-contamination for subsequent circulating RNA analysis. First,
we found that CB-modified magnetic beads (CBMBs) exhibit a strong
affinity toward LPP particles while displaying little interaction
with EVs in standard samples under physiological pH conditions. We
further demonstrate that the affinity between CB molecules and bionanoparticles
in plasma samples is highly pH-dependent. Specifically, CBMBs show
affinities for both LPP and EV particles under neutral and acidic
conditions. However, at basic pH levels, CB molecules selectively
bind only to LPP particles. Consequently, the remaining EV particles
present in plasma are subsequently isolated by using titanium dioxide-modified
beads (TiMBs) through phospholipid affinity. The simultaneous analysis
of the transcriptomic contents of EV and LPP reveals clear differences
in their small RNA profiles, with the differentially expressed RNAs
reflecting distinct biological processes. Significantly, in a proof-of-concept
study, we successfully demonstrated a strong correlation between miRNAs
carried by both EV and LPP particles with the occurrence of ocular
neovascularization during the progression of diabetic retinopathy.
The involved miRNAs may serve as potential biomarkers for DR diagnostics
and severity classification. To sum up, this pH-mediated separation
system is not only user-friendly but also highly compatible, rendering
it a potent tool for probing the molecular compositions, biomarkers,
and underlying biological mechanisms of EVs and LPPs
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