84 research outputs found
Lipase and Lipoxygenase Activity, Functionality, and Nutrient Losses in Rice Bran During Storage (Bulletin #870)
This bulletin includes information on the feasibility of using microwave heat to inactivate lipase and LOX, determine the optimum storage and packaging conditions with the fewest adverse effects on functionality, and to determine changes in functionality of rice bran as a result of heat treatment.https://digitalcommons.lsu.edu/agcenter_bulletins/1031/thumbnail.jp
Enabling emergent configurations in the industrial internet of things for oil and gas explorations : a survey
Abstract: Several heterogeneous, intelligent, and distributed devices can be connected to interact with one another over the Internet in what is termed internet of things (IoT). Also, the concept of IoT can be exploited in the industrial environment for enhancing the production of goods and services and for mitigating the risk of disaster occurrences. This application of IoT for enhancing industrial production is known as industrial IoT (IIoT). Emergent configuration (EC) is a technology that can be adopted to enhance the operation and collaboration of IoT connected devices in order to improve the efficiency of the connected IoT systems for maximum user satisfaction. To meet user goals, the connected devices are required to cooperate with one another in an adaptive, interoperable, and homogeneous manner. In this paper, a survey of the concept of IoT is presented in addition to a review of IIoT systems. The application of ubiquitous computing-aided software define networking (SDN)-based EC architecture is propounded for enhancing the throughput of oil and gas production in the maritime ecosystems by managing the exploration process especially in emergency situations that involve anthropogenic oil and gas spillages
Runoff simulation using SWAT model and SUFI-2 algorithm (Case study: Shafaroud watershed, Guilan Province, Iran)
Reliable estimates of runoff are required as a part of the information sets that help watershed managers make
informed decisions on water resources planning and management. This study was carried out in Shafaroud
watershed located in the north of Iran. In order to achieve the best runoff simulation in the study area, first rainfall
data of four stations during 1998 to 2011 were collected and combined with other maps of the study area, such as
Digital Elevation Model (DEM), land use and soil as input data in the form ofSoil and Water Assessment Tools
(SWAT) model. After running the model, the Sequential Uncertainty Fitting (SUFI-2) algorithm in SWAT
calibration and uncertainty program (SWAT-CUP) were used to evaluate the data uncertainty and the most
accurate simulation. The first three years (1998-2000) of rainfall data for warm-up and the next 7 years (2001-2007)
for the calibration and final 4 years (2008-2011) were used for the validation period. Finally, with multiple
simulations, the uncertainty of the parameters was assessed with P-factor, R-factor, R
2 and NS coefficients. The
results of validation period (R
^2=0.85, NS=0.74) confirmed the potential of SUFI-2 algorithm of SWAT-CUP
program for simulating runoff data in the study area
COMPARISON OF METEOROLOGICAL INDICES FOR SPATIO-TEM- PORAL ANALYSIS OF DROUGHT IN CHAHRMAHAL-BAKHTIYARI PROVINCE IN IRAN
Monitoring suše važan je za ocjenu i upravljanje rizicima kao i za pripreme i vođenje
akcije za sprečavanje i smanjenje šteta od suše. Osobine suše, kao što su njezin intenzitet, tra-
janje i rasprostranjenost, opisane su upotrebom 14 različitih indeksa. Izbor indeksa koji opisu-
ju sušu temelji se na raspoloživim podacima, njihovoj kakvoći i mogućnostima indeksa da
odrede prostorne i vremenske osobine suše. Cilj rada je monitoring suše upotrebom različitih
indeksa uključujući China-Z indeks (CZI), Z-score, standardizirani oborinski indeks (SPI) i
efektivni indeks suše (EDI) i usporedba indeksa u Chahrmahal- Bakhtyari oblasti u razdoblju
1980. – 2013. Rezultati ukazuju na čvrstu vezu indeksa SPI, CZI i Z-score za vrijeme normal-
nih godina. Rezultat analize učestalosti pokazuje da je pojava suše u razdoblju 1998-2012 po-
većana u odnosu na razdoblje 1983-1998. CZI pokazuje slično ponašanje kao SPI u suhim i
normalnim uvjetima, a EDI i Z-score pokazuju sličan rezultat. Konačno, studija pokazuje da je
EDI indeks osjetljiviji za detekciju suše od drugih indeksa.Drought monitoring is important for risk assessment and management, as well as for
effective action to prevent and reduce the effects of drought. Drought characteristics such as
intensity, duration and extent can be analyzed by 14 different drought indices. Choosing
drought indices should be based on available data and its quality and ability of the index to de-
termine spatial and temporal characteristics of drought. The objective of the present study is
drought monitoring by different indices, including China-Z index (CZI), Z-score, Standard-
ized precipitation index (SPI) and Effective drought index (EDI) indices, and comparing the
performance of drought indices in the Chaharmahal-Bakhtiyari province, duration 1980-
2013.Results showed that SPI and CZI, Z-score have the strong relationships, particularly dur-
ing normal years. Furthermore, the results of frequency analysis showed that the drought oc-
currence of during 1998- 2012 have been increased compared to 1983- 1998 period. CZI
showed a similar behavior to the SPI, especially in normal and dry condition and EDI and Z-
score showed similar results. Finally, the results of the present study showed that EDI index is
more sensitive to detect the onset of drought, compared to other indices
Detecting Selective Protein Binding Inside Plasmonic Nanopores: Toward a Mimic of the Nuclear Pore Complex
Biosensors based on plasmonic nanostructures offer label-free and real-time monitoring of biomolecular interactions. However, so do many other surface sensitive techniques with equal or better resolution in terms of surface coverage. Yet, plasmonic nanostructures offer unique possibilities to study effects associated with nanoscale geometry. In this work we use plasmonic nanopores with double gold films and detect binding of proteins inside them. By thiol and trietoxysilane chemistry, receptors are selectively positioned on the silicon nitride interior walls. Larger (similar to 150 nm) nanopores are used detect binding of averaged sized proteins (similar to 60 kg/mol) with high signal to noise (>100). Further, we fabricate pores that approach the size of the nuclear pore complex (diameter down to 50 nm) and graft disordered phenylalanine-glycine nucleoporin domains to the walls, followed by titration of karyopherin beta 1 transport receptors. The interactions are shown to occur with similar affinity as determined by conventional surface plasmon resonance on planar surfaces. Our work illustrates another unique application of plasmonic nanostructures, namely the possibility to mimic the geometry of a biological nanomachine with integrated optical sensing capabilities
The kinetics of lipase activity and hydrolytic rancidity of raw, parboiled, and extruded rice bran during storage
Mitigação das emissões de amônia por zeólitas naturais durante a compostagem de dejetos de suínos
Network security and contagion
We develop a theoretical model of security investments in a network of interconnected agents. Network connections introduce the possibility of cascading failures due to an exogenous or endogenous attack depending on the profile of security investments by the agents. We provide a tractable decomposition of individual payoffs into an own effect and an externality, which also enables us to characterize individual investment incentives recursively (by considering the network with one agent removed at a time). Using this decomposition, we provide characterization of equilibrium and socially optimal investment levels as a function of the structure of the network, highlighting the role of a new set of network centrality measures in shaping the levels of equilibrium and optimal investments. When the attack location is endogenized (by assuming that the attacker chooses a probability distribution over the location of the attack in order to maximize damage), similar forces still operate, but now because greater investment by an agent shifts the attack to other parts of the network, the equilibrium may involve too much investment relative to the social optimum
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