Anticipated and Abnormal Plant Transients in Light Water Reactors ab 138.99 € als Taschenbuch: Volume 1. Softcover reprint of the original 1st ed. 1984. Aus dem Bereich: Bücher, Wissenschaft, Technik,
Anticipated and Abnormal Plant Transients in Light Water Reactors ab 138.99 EURO Volume 1. Softcover reprint of the original 1st ed. 1984
In the last three decades the interest for monitoring systems applied to large-scale chemical processes has increased notably. This is essentially due to the need of guarantying safety operation conditions of the overall plant, related personnel and environment. Moreover, devices such as sensors and/or actuators can suffer malfunctions which worsening the framework to define the process global state. The increasing complexity in both plant designs and control policies require intelligent monitoring systems to support the decision making.The main objective of this book is addressing the fault detection, diagnosis and estimation system design integrated to fault-tolerant control for chemical processes. The procedure is focused on manage automatically the abnormal situation by the suitable interaction between the fault detection system and the plant-wide control structure. To achieve this purpose several engineering tools were improved and integrated, either for a single process unit or large-scale plants. In fact, hybrid-active designs based on historical data, classical and advanced control, signal processing, and multivariate statistics procedures were considered for this proposal
Receptor kinases mediate many signaling events in the animal as well as plants. Among them, CLAVATA1 in Arabidopsis is one of the well-known LRR RK in plants, which functions in CLV pathway and regulate stem cell pool in SAM. AtCLV1 encodes a leucine-rich repeat receptor-like kinase. CLV loss of function mutants accumulates stem cell in the central zone and exhibits shoot fasciation, enlarged shoot and floral meristem and increased floral organ numbers. In soybean, a model plant in legume, GmCLV1A, and GmNARK are the most closely related to AtCLV1. GmNARK is involved in root nodulation through a regulatory network called autoregulation of nodulation specific to legumes. Loss of function in the GmNARK leads to super- or hyper-nodulation. GmCLV1A was investigated in this study for the first time. A recessive loss of function allele was isolated for GmCLV1A through TILLING. After that, through several experiments, it has been shown that the mutant had a plastic and temperature-sensitive phenotype displaying abnormal leaf development, bifurcated pods, and increased basal branching but normal nodulation. Taken together, our findings indicate that GmCLV1A acts on shoot architecture.
The use of power is increasing very rapidly and the power is becoming more and more complex. Any disturbance at any part of the system may cause a serious threat to the stability of the total system. So, a very fast and perfect must be taken to detect and eliminate any kind of fault. Hence study of protection scheme for any equipment is required. The objective of this study is to know the protection scheme of power plant, especially Generator, Transformer and Motor. Power system consists of several important equipments. Out of them, the three principal and most important elements are Generator, Transformer and Motor. These are very costly. So these equipment need sufficient maintenance and careful attention against damage caused by different faults and abnormal conditions, providing suitable protection schemes. For practical knowledge about the protection elements, the 1 110 MW Power station Goalpara, Khulna is studied. Moreover a brief description about protective relaying has been studied.
Cancer is a group of diseases involving uncontrolled and abnormal growth of cells with potential to invade (or) spread to other parts of body. The aim of present study is to evaluate the Invitro anti cancer screening of ethanolic extract of whole plant of Eclipta alba against HL-60 cell lines by SRB (sulphorhodamine) assay, besides this property it has many other therapeutic uses. The plant with ethanol is kept in closed vessel for seven days and the obtained extract is subjected to Preliminary Phytochemical analysis and In vitro anti cancer screening, these test reveals the presence of secondary metabolites and LD50 concentration of extract was 80 mig/ml respectively i.e) the extract can inhibit the growth of cancer cells rather than killing them. For killing the cancerous cells very high concentration of extract is required.
With increasing automation in chemical processes, occurrences of faults are very common now a days. An undetected fault can escalate out of proportion and cause massive losses to an industry in terms of infrastructure and personnel. The signed directed graph (SDG) technique has been widely used for diagnose the fault mainly because of its resemblance to a human way of reasoning, its thorough analysis of abnormal situation, and its ability to present a complete description of all process variable effected by a fault. SDG represents the causality between the processes variables involved in system. Case studies including double effect evaporator, multi stream controlled CSTR and a plant wide flow sheet for reaction separation process have been considered. To construct the SDG of a system either arc value calculation or perfect matching is performed. Here SDG is constructed for systems with and without control loop. To diagnose the fault, backward reasoning approach and incipient fault diagnosis (IFD) are used. A quantitative simulation is also performed to validate the proposed SDG technique in identification of fault.
The present study has been undertaken to study the effect of silver nitrate om different aspects of plant tissue culture. The important medicinal plants are becoming extinct and endangered due to profound exploitation and propagation in responses. Commercial production and conservative propagation is vulnerable due to its poor seed feasibility, lower rate of seed germination and poor rooting capability of vegetative cuttings. Substitute propagation methods would be favorable in accelerating large scale multiplication, enhancement and preservation. In general, closed vessels are used in plant tissue culture to avoid contamination. But, it may cause abnormal plant growth due to ethylene gas accumulation in culture vessels. Ethylene produced in in vitro plant culture systems is known to inhibit plant morphogenesis depending upon species and culture stage. To overcome this problem, a potential inhibitor like silver nitrate has been used in tissue culture media. Hence, the effect of silver nitrate on synthetic propagation of this medicinally important plant was under taken for the first time to standardize the protocol for micropropagation.
The aim of the book was to examine the association between exposure to lead at the battery manufacturing plant in Baghdad/Iraq and the plasma lipid profile. Given the limitations of the study, we were able to find an association between exposure to lead at work and abnormal serum lipid profile. More studies are needed to examine the mechanism behind that association. In addition, more studies are needed to study the effect of adherence to personal protective measures on blood lead level and serum lipid profile.