Sensitization of indium-bromopyrogallol red system with cetyltrimethyl-- ammonium bromide .

820-822Indium-bromopyrogallol red (In-BPR) system is sensitized with cetyltrimethylammonium bromide (CTAB) and the buffers used for controlling the pH influence the system. A calibration curve, at 610 nm, is non-linear in the entire metal concentration range studied. However, the curve, at 620 nm, is linear for 0-23.2 μg In in 25 ml. Molar absorptivity of the complex, at 620 nm, is 4.0 x 104 mol-1 dm3 cm-1

Development of electrical insulating surface on copper-nickel alloy wire used in naval instruments

THE copper-nickel alloy wire used for close-wound resistors in Naval instruments is an oxidized wire having 0.001 cm thick oxide which offers electrical insulation to a potential difference of about 15 volts. At present, the oxidized wire used by the Navy is of imported origin. A problem has, therefore, arisen to develop a process for producing the oxidized wire locally. Work was, therefore, taken in Naval Chemical and Metallurgical Laboratory, Bombay, to find the expe-rimental conditions to produce the oxidized layer with requisite electrical insulation characteristics

Large Scale Data Storage and Retrieval System using Keywords for E-governance

whenever we are storing any documents related E governance to cloud we need to secure it because there may be a malicious or third party attackers can hack data which in stored in cloud so that we need to create dynamic secure storage system. We are proposing improved encryption algorithm to give security for the text files related to E governance which we are going to store in the cloud. The improved RNS algorithm is one of the most widespread and commonly used methods and intriguing in the distribution and exchange of key. It can be said that this algorithm is a public key encryption system; the only objective of this algorithm is key distribution. After achieving security, to retrieve the file from the server Speed of transmission should be high, to achieve speech of transmission and searching efficiency, we are proposing Index Array Structure using MD5 Algorithm and Multi keyword Search for Searching Efficiency. To achieve Index Array Structure, from the text file all the unnecessary words, special characters and whitespaces are removed. The remaining keywords are extracted from the file. Remaining keywords occurrence is checked how many times the keywords are repeated. The repeated keywords weight age is noted in index array table. After weightage calculation, keyword ranking is checked. Keyword ranking is nothing but number of occurrences of keyword divided by total number of keywords in particular files (Term frequency). Finally, keyword ranking is stored in index array. After completing this process all the keywords are converted into hashed index with the grade access control key using MD5 algorithm. This converted hash key is inserted into index array. Finally, with the help index array content we are going to achieve Searching efficiency

Planning of Ventilation Requirements for Deep Mechanised Long Wall Faces – A Case Study of Adriyala Longwall Project of The Singareni Collieries Company Limited (SCCL)

AbstractWith near exhaustion of shallow deposits, mining operations are planned to reach greater depths. Coal mining particularly in SCCL has to face numerous challenges for extraction from lower horizons associated with difficult geo-mining and environmental conditions. Suitable mining technology with heavy mechanisation is being introduced to meet the production requirements safely and economically. Mining at greater depth needs strategic planning and execution to overcome the operational problems and issues related to mine environment. AdriyalaLongwall Project in SCCL is planned to operate with high capacity Longwall unit at depth range of 300-720m. To maintain comfort work place environment in workings of the mine, it is proposed to establish suitable ventilation system along with air cooling arrangements. This paper gives insight of the details of the project and ventilation system executed to meet the requirements and the proposed air cooling arrangements at the mine

Estimations of various antioxidants in oral cancer patients in comparison with smokers and non-smokers - a biochemical study

Background: Oral cancer is one of the most fatal health problems faced by the mankind today. Oral cancer ranks as the eighth most common cancer in developing countries. A high incidence of oral cancer is observed in the Indian sub-continent which accounts for one third of the world burden. In India, because of cultural, ethnic, geographic factors and the popularity of addictive habits, the frequency of oral cancer is high. It is estimated that about 56 thousand new cases are reported each year in India resulting in about one lakh individuals suffering from the disease at any given time. Cancer or precancer states can be found in individuals who are non-smokers and quid chewers. The possibility of alteration of various antioxidant levels due to presence of carcinogens in the blood plays a key role in the development of malignant states.Methods: The material for the present study comprise of 50 subjects selected at randomly. After recording history regarding habits, thorough clinical examination the patients clinically diagnosed as oral cancer underwent biopsy to confirm histopathologically. A total of 2.5ml ml of blood was drawn from the mid-cubital vein with necessary aseptic precautions and transferred to sterile vacutainers. Serum was separated immediately by centrifugation at 2000rpm for 15mins for the estimation of antioxidants namely ceruloplasmin, malondialdehyde, glutathione using photometric method.Results: The mean values of Ceruloplasmin (the mean values for controls 32.87, oral cancer 40.49), Glutathione (controls 4.46 oral cancer 5.55), malondialdehyde (controls 2.97, oral cancer 4.34) were compared using students t-test. The mean values of antioxidants were significantly increased in cancer compared to controls (pvalue < 0.05), It can be observed from the results that values of enzyme increased from controls to Oral cancer.Conclusions: It can be stated with our study that the antioxidant defence mechanism constitute a very important defence system against the free radical injury of the cells. The antioxidants come into play not only during minor free radical injurious process but also when the malignancy develops. Hence the antioxidants play a vital role as valuable markers in diagnosing oral cancer.

Mechanical property evaluation of an Al-2024 alloy subjected to HPT processing

An aluminum-copper alloy (Al-2024) was successfully subjected to high-pressure torsion (HPT) up to five turns at room temperature under an applied pressure of 6.0 GPa. The Al-2024 alloy is used as a fuselage structural material in the aerospace sector. Mechanical properties of the HPT-processed Al-2024 alloy were evaluated using the automated ball indentation technique. This test is based on multiple cycles of loading and unloading where a spherical indenter is used. After two and five turns of HPT, the Al-2024 alloy exhibited a UTS value of ~1014 MPa and ~1160 MPa respectively, at the edge of the samples. The microhardness was measured from edges to centers for all HPT samples. These results clearly demonstrate that processing by HPT gives a very significant increase in tensile properties and the microhardness values increase symmetrically from the centers to the edges. Following HPT, TEM examination of the five-turn HPT sample revealed the formation of high-angle grain boundaries and a large dislocation density with a reduced average grain size of ~80 nm. These results also demonstrate that high-pressure torsion is a processing tool for developing nanostructures in the Al-2024 alloy with enhanced mechanical propertie

Randomized double blind comparative study on efficacy and safety of oral oxaceprol 200 mg versus oral diclofenac 50 mg in patients with moderate osteoarthritis

Background: Osteoarthritis of knee is the most common form of arthritis globally, approximately 250 million people are suffering from osteoarthritis of the knee alone throughout the world. It is a chronic joint disease leading to cause cartilage degradation that involves synovial Inflammation, Subchondral bone remodelling, and Formation of osteophyte pathologically, which leads to cause pain, joint destruction and difficulty in walking. Aim of the current study was to compare the safety and efficacy of oxaceprol 200 mg versus diclofenac 50 mg in patients with moderate osteoarthritis and to determine cost-effectiveness between these two drugsMethods: this is a randomized controlled study, in our study total of 94 patients were screened, of which 85 patients met inclusion & exclusion criteria. In this, 78 members gave written informed consent, they were randomly assigned by double-blind fashion into two treatment groups (oxaceprol and diclofenac). Results were analyzed by applying paired and unpaired student t-test by using SPSS softwareResults: In our study, both oxaceprol and diclofenac were extremely significant in reducing joint pain and joint stiffness and improving physical activity, but when comparing with one another oxaceprol group showed better results in improving physical activityConclusions: From our study, it is concluded that oxaceprol is equally efficacious as diclofenac in reducing knee pain, joint stiffness but more efficacious than diclofenac in improving physical activity of patients by enhancing bone remodelling

Effect of outliers in accounting the variability in chickpea trials

For a set of 64 chickpea trials administered by ICRISAT, the effect of outliers in field variation was examined. outliers were detected using a Q-Q field plot and a statistical test, we compared the coefficients of variation with and without outliers. In almost every trial an outlier was successfully detected and its removal resulted into reduced coefficient of variation