A Case Study on Settlement of Oil Storage Tank Foundations

Foundations of 8 Steel Oil storage tanks and two fire water tanks were proportioned limiting total settlement to 100 mm. The soil at the site consists of alternating layers of cohesive and cohesionless soils. Settlement estimates were based on currently available methods with suitable modifications to the situation met with. The tanks were load tested (Hydrotest) and settlements observed at nine locations along the periphery on tank shell base. These observed settlements are compared with the estimated values

Energy of molecular structures in 12^{12}C, 16^{16}O, 20^{20}Ne, 24^{24}Mg, and 32^{32}S

International audienceThe energy of the 12 C, 16 O, 20 Ne, 24 Mg and 32 S 4n-nuclei has been determined within a generalized liquid drop model and assuming different planar and three-dimensional shapes of α-molecules : linear chain, triangle, square, tetrahedron, pentagon, trigonal bipyramid, square pyramid, hexagon, octahedron, octogon and cube. The potential barriers governing the entrance and decay channels via α absorption or emission as well as more symmetric binary and ternary reactions have been compared. The rms radii of the linear chains differ from the experimental rms radii of the ground states. The binding energies of the three-dimensional shapes at the contact point are higher than the ones of the planar configurations. The alpha particle plus A-4 daughter configuration leads always to the lowest potential barrier. The binding energy can be reproduced within the sum of the binding energy of n α particles plus the number of bonds multiplied by 2.4 MeV or by the sum of the binding energies of one alpha particle and the daughter nucleus plus the Coulomb energy and the proximity energy

Pd(II)-doping studies on tris(thiourea)zinc(II) sulphate crystals: Catalytic effect of Pd(II)-doping on SHG efficiency

Single crystals of Pd(II)-doped tris(thiourea)zinc(II) sulphate (ZTS) have been grown from an aqueous solution by conventional slow evaporation solution growth technique. The characteristic functional groups have been identified by FTIR analysis. Crystal stress has been indicated by powder XRD patterns and FTIR analysis. Incorporation of dopant into the crystalline matrix during crystallization process has been evidenced by energy dispersive X-ray spectroscopy and quantified by inductively coupled plasma technique. The surface morphological changes have been observed in the doped specimen. Mechanical stability of the as-grown specimen has been analyzed by Vickers microhardness analysis. Thermal studies reveal no decomposition up to the melting point. Lattice parameters determined by single crystal XRD analysis reveal only minor variations as a result of low doping. Pd(II) doping has a catalytic effect on the second harmonic generation efficiency improvement of zinc thiourea complex

Use of Modern Technology in The Automated Farming of Agriculture

In order to improve efficiency, productivity, global market, and to reduce human intervention, time, and cost, there is a requirement for the introduction of new technology called the Internet of Things. The internet of things (IoT) is the network of interconnected devices that facilitates information transfer without human involvement. Agriculture and the Internet of Things work together to accomplish smart farming.   The current study is a systematic review on the use of IOT and other smart methods in agriculture

Confocal/two-photon microscopy in studying colonisation of cancer cells in bone using xenograft mouse models

Confocal and two-photon microscopy has been widely used in bone research to not only produce high quality, three-dimensional images but also to provide valuable structural and quantitative information. In this article, we describe step-by-step protocols for confocal and two-photon microscopy to investigate earlier cellular events during colonisation of cancer cells in bone using xenograft mouse models. This includes confocal/two-photon microscopy imaging of paraformaldehyde fixed thick bone sections and frozen bone samples

Clinical profile and triggers of migraine: an Indian perspective

Background: Primary headache disorders are among the most ubiquitous disorders affecting people worldwide. Migraine headache is one of the commonest syndromes of primary headache. There are few studies regarding clinical profile of migraine and migraine triggers in India. The objective this study was to study the gender, age distribution, frequency, severity of migraine attacks and other associated symptoms in patients presenting with migraine. To study in detail about triggers of migraine in present study population.Methods: About 222 patients who presented with history suggestive of migraine with or without aura defined according to International classification of headache disorders 2, fulfilling the study criteria were included. The study duration was fifteen months from March 2017 to May 2018. Details were collected using a proforma.Results: In this study, incidence of Migraine is higher in females (169,76%) than males (53, 24%). Majority of migraine patients were between age group of 18-29 years constituting about 77 patients (34.65%). Frequency of migraine more commonly observed was 3-4 per month was observed in 64 patients (29%) and chronic migraine was seen in 19 patients (8.4%). Migraine without aura is most common type observed in this study. Many patients had more than one trigger. More common triggers identified were sun exposure (85, 38.3%), sleep deprivation (83, 37.4%), stress (84, 37.8%) and travel (80, 36%).Conclusions: Migraine is more common in females than males with majority being in between age group of 18-29 years. Many had frequency of 3-4 episodes per month. Most had more than one trigger

Properties of cotton, tencel and cotton/tencel blended ring- spun yarns

Yarn characteristics of pure cotton, 67:33 cotton/tencel blend, 33:67 cotton/tencel blend and pure tencel have been studied. Blending is done at draw frame. Machinery parameters are kept constant for studying the effect of fibre parameters on yarn characteristics. It is observed that the addition of tencel increases single yarn strength significantly at the higher tencel composition. Presence of tencel improves the elongation property. Packing fraction of tencel and tencel blended yarn is found to be more than that of cotton. Swelling diameter of pure cotton yarn is found to be lower than those of pure tencel and tencel/cotton blend yarns. Hairiness (H) decreases with the addition of tencel in the blend. It is also observed that the coefficient of friction (yarn- to- metal) of blend yarn reduces with the addition of tencel fibre in the blend

Synchronous primary malignancy of head and neck- a case report

The incidence of multiple primary malignant neoplasms increases with age, reflecting an increase in overall cancer risk in older patients. Cases of two or more concurrent primary cancers are still rare, although its incidence is increasing. Here, we report the case of a 41-years female who was referred to our institution with synchronous papillary carcinoma of thyroid and Adenoid cystic carcinoma of submandibular gland. The case is being presented to emphasize that the clinicians should keep in mind that the appearance of another tumour in a patient suffering from cancer could be either a synchronous or a metachronous or a metastatic lesion

The wear characteristics of cemented tungsten carbide tools in machining oil palm empty fruit bunch particleboard

A series of machining experiments on the Oil Palm Empty-Fruit Bunch (OPEFB) particle board were carried out using tungsten carbide tools, to ascertain the predominant mechanism of tool wear when machining this material. The experiments were carried out using a high speed lathe, which machined a rotating disc of the OPEFB particle board. It was found that mechanical abrasion and micro-fracture was the primary mode of tool failure when machining OPEFB particle board. The low cutting temperature recorded during the machining experiments provides compelling evidence to eliminate any significant effect of electrochemical and oxidation mechanisms on the wear of tungsten carbide tools. Therefore, the wear of cemented tungsten carbide tools when machining OPEFB particle board was predominantly by mechanical wear mechanisms. The results of this study implies that the high tool wear experienced during the machining of OPEFB particle board, may limit its use in the manufacture of value-added products, unless the boards are priced competitively in the market