Well control

This paper presents a LoRaWAN-based remote monitoring and control system for canal gates of paddy field irrigation systems. The proposed system employs the LoRa technique to create a network of sensor nodes that covers a wide geographical area, making it well-suited for large irrigation systems.

5p vibenya 31-12-2024 3 1   Download

Lecture Well control present the content: well control principles, warning signs of kicks, secondary control, primary control, lost circulation, solids removal, excessive dilution of the mud (due to watering-back), gas cutting of the mud, reduced height of mud column, primary indicators of a kick, secondary indicators,...

141p bachkhinhdaluu 03-12-2021 17 2   Download

Model Predictive Control (MPC) refers to a class of algorithms that optimize the future behavior of the plant subject to operational constraints. The merits of the class algorithms include its ability to handle imposed hard constraints on the system and perform on-line optimization. This thesis investigates design and implementation of continuous time model predictive control using Laguerre polynomials and extends the design approaches proposed in to include intermittent predictive control, as well as to include the case of the nonlinear predictive control.

162p runthenight07 01-03-2023 9 4   Download

The simulation results demonstrate the possibilistic particle forward-backward smoothing performs well and improves bearings-only tracking performance. Furthermore, possiblistic smoothing also demonstrates better performance than probabilistic smoothing in model-mismatched case.

78p gaocaolon12 13-06-2021 20 4   Download

Studying the models of Parliamentary Ombudsman institution in the world in order to describe its position in state's activities as well as clarify the advantages of this institution in the modern rule of law state. This research proposes to apply appropriately the Parliamentary Ombudsman model in Vietnam in order to improve the efficiency of the state apparatus in controlling power over public administrative agencies and promoting human rights and citizens' rights in the current period.

27p kequaidan6 15-07-2020 28 1   Download

The research subjects of the thesis are theoretical and practical issues on the oversight function of the Committee on Judicial Affairs of the National Assembly of Vietnam in the context of innovating the National Assembly’s organization and operation, strengthening the control of state power, protecting human and civil rights, speeding up judicial and administrative reform as well as building Vietnam as a socialist rule-of-law state.

35p kequaidan6 15-07-2020 39 2   Download

Quantifying the multiple processes which control and modulate the extent of oral bioavailability for drug candidates is critical to accurate projection of human pharmacokinetics (PK). Understanding how gut wall metabolism and hepatic elimination factor into first-pass clearance of drugs has improved enormously. Typically, the cytochrome P450s, uridine 5′- diphosphate-glucuronosyltransferases and sulfotransferases, are the main enzyme classes responsible for drug metabolism. Knowledge of the isoforms functionally expressed within organs of first-pass clearance, their anatomical topology (e.

16p caothientrangnguyen 09-05-2020 20 1   Download

Schistosomiasis is an endemic disease in Egypt caused by the trematode Schistosoma which has different species. c the best known form of chronic disease with a wide range of clinical manifestations. The pathogenesis of schistosomiasis is related to the host cellular immune response. This leads to granuloma formation and neo angiogenesis with subsequent periportal fibrosis manifested as portal hypertension, splenomegaly and esophageal varices. Intestinal schistosomiasis is another well identified form of chronic schistosomal affection.

8p kethamoi1 17-11-2019 30 2   Download

Wastewater Management is one of the most concerns in any urban area. An efficient management contributes to the wealth of a community, never the less a poor management leads to unpredictable hazards related to health, environmental pollution, etc. In developed countries, the issues of water and sanitation are solved, floodings are well controlled.

115p change15 08-07-2016 32 2   Download

Preventing e. coli in food aim prevention and control require a multidisciplinary approach in animal and plant production as well as risk-based approaches along the entire food supply chain. These include the application of Good Agricultural Practices (GAP), Good Manufacturing Practices (GMP), Good Hygiene Practices (GHP) and Hazard Analysis Critical Control Point (HACCP) from the farm to the consumer.

16p nhathao2121 12-03-2015 48 4   Download

Purpose of the study: On the basis of synthesis and clearer interpretation of the relationshipsbetween competition and monopoly, between competition policy and monopoly control one, in which competition and mono poly control law forms an important part of competition policy. In addition, based on the analysis results and situation assessment as well as reference to experience drawn from some countries in the world, and changes of the global environment;...

0p luanan014 19-07-2014 98 6   Download

The human b-globin gene locus is the subject of intense study, and over the past two decades a wealth of information has accumulated on how tissue-specific and stage-specific expression of its genes is achieved. The data are extensive and it would be difficult, if not impossible, to formulate a comprehensive model integrating every aspect of what is currently known. In this review, we introduce the fundamental characteristics of globin locus regulation as well as questions on which much of the current research is predicated.

11p system191 01-06-2013 50 4   Download

BTG/Tob family proteins, which are characterized by similarities in their N-terminal BTG/Tob homology domains, control cell growth negatively. Among the BTG/ Tob family members, BTG2/TIS21/PC3 proteins have been reported to have short lives and to be degraded by the proteasome. However, the mechanisms regulating the stabilities of other BTG/Tob family proteins have not yet been clarified.

9p research12 01-06-2013 31 4   Download

The p25rum1 is an inhibitor of Cdc2 kinase expressed in fission yeast and plays an important role in cell-cycle control. As its amino-acid sequence suggests that p25rum1 has putative phosphorylation sites for mitogen-activated protein kinase (MAPK), we investigated the ability of MAPK to phosphorylate p25rum1. Direct in vitro kinase assay using GST-fusion proteins of wild-type as well as various mutants of p25rum1 demonstrated that MAPK phosphorylates the N-terminal portion of p25rum1 and residues Thr13 and Ser19 are major phosphorylation sites for MAPK....

11p research12 01-06-2013 47 4   Download

There are at least three well-defined signalling cascades engaged directly in the physiological regulation of cardiac circulatory function: theb1-adrenoceptors that control the cardiac contractile apparatus,the renin-angiotensin-aldo-sterone system involved in regulating bloodpressure and the natriuretic peptides contributing at least to the factors determining circulating volume.

18p research12 29-04-2013 40 3   Download

Pycnoporus cinnabarinuslaccaselac1genewasoverexpressed in Aspergillus niger, a well-known fungal host producing a large amount of homologous or heterologous enzymes for industrial applications. The corresponding cDNA was placed under the control of the glyceraldehyde-3-phosphate dehydrogenase promoter as a strong and constitutive pro-moter. The laccase signal peptide or the glucoamylase preprosequence ofA.

8p research12 23-04-2013 52 5   Download

As one of the most important families of non-natural poly-mers with the propensity to form well-defined secondary structures, theb-peptides are attracting increasing attention. The compounds incorporatingb-amino acid residues have found various applications in medicinal chemistry and biochemistry.The conformational pool ofb-peptides com-prises several periodic folded conformations, which can be classified as helices, and nonpolar and polar strands.The latter two are prone to form pleated sheets.

10p tumor12 20-04-2013 30 4   Download

The surface charge as well as the electrochemical properties and ligand binding abilities of the Gram-positive cell wall is controlled by the d-alanylation of the lipoteichoic acid. The incorporation of d-Ala into lipoteichoic acid requires the d-alanine:d-alanyl carrier protein ligase (DltA) and the carrier protein (DltC). We have heterologously expressed, purified, and assayed the substrate selectivity of the recombinant proteins DltA with its substrate DltC.

11p awards 06-04-2013 40 5   Download

The double-stranded RNA-binding motif (dsRBM) is anabbbafold with a well-characterized function to bind structured RNA molecules. This motif is widely distributed in eukaryotic proteins, as well as in proteins from bac-teria and viruses. dsRBM-containing proteins are involved in processes ran-ging from RNA editing to protein phosphorylation in translational control and contain a variable number of dsRBM domains.

0p awards 06-04-2013 31 4   Download

Cys34 in domain I of the three-domain serum protein albumin is the bind-ing site for a wide variety of biologically and clinically important small molecules, provides antioxidant activity, and constitutes the largest portion of free thiol in blood. Analysis of X-ray structures of albumin reveals that the loop containing Tyr84 occurs in multiple conformations. In structures where the loop is well defined, there appears to be an H-bond between the OH of Tyr84 and the sulfur of Cys34.

10p awards 05-04-2013 37 3   Download