पिंजऱ्यातील मत्स्यशोति विषयक व्यापार आणि आर्थिक सुसाध्यता/शक्यता

India is one of the largest fish producers in the world and contributes 5.43% to global fish production. India ranks second in fish production from aquaculture sector following China at top. Total fish production of India during 2010-11 was 8.42 million metric tones. Inland sector contributes about 5.2 million metric tones, whereas marine sector contributes 3.22 million metric tones. India has a long coastline of about 8,129 km and continental shelf area of 0.5 million km2. Declining catch rates in marine capture fisheries consequently created serious unemployment issues in rural coastal areas. Issues faced by marine fisheries sector in India have focused the attention of policy makers and rural fishers towards development of mariculture and coastal aquaculture activities as alternative livelihood option

Synchronization of Microgrid by Actively Controlling Parameter

A microgrid consist of number of distributed generators (DGs) and renewable energy sources, Which operates in parallel with the main grid or in islanded mode. When it come for the parallel operation with main grid, microgrid cannot be Synchronized with main grid by using traditional synchronizer. As microgid operates with multiple DG’s and load, which is continuously varying. So I is necessary o use co-ordinate way to control multiple generators. This paper proposes an active synchronization technique with network based co-ordination to conrol the multiple DG’s. From the simulation results using Simulink dynamic models, it is shown that the scheme provides the microgrid with a deterministic and reliable reconnection to the grid.[38

Mass-ratio dependent strong-field dissociation of artificial helium hydride isotopologues

We study the effect of the nuclear-mass ratio in a diatomic molecular ion on the dissociation dynamics in strong infrared laser pulses. A molecular ion is a charged system, in which the dipole moment depends on the reference point and therefore on the position of the nuclear center of mass, so that the laser-induced dynamics is expected to depend on the mass asymmetry. Whereas usually both the reduced mass and the mass ratio are varied when different isotopologues are compared, we fix the reduced mass and artificially vary the mass ratio in a model system. This allows us to separate effects related to changes in the resonance frequency, which is determined by the reduced mass, from those that arise due to the mass asymmetry. Numerical solutions of the time-dependent Schrödinger equation are compared with classical trajectory simulations. We find that at a certain mass ratio, vibrational excitation is strongly suppressed, which decreases the dissociation probability by many orders of magnitude

Electro Discharge Machining Characteristics of Ti-6Al-4V Alloy: A Grey Relational Optimization

AbstractThe paper presents the grey relational theory based parameter optimisation in electro discharge machining (EDM) of Ti-6Al-4V alloy. The multiple responses optimized are material removal rate (MRR), electrode wear rate (EWR) and surface roughness (SR). The process parameters include duty cycle, pulse current, pulse on time, electrode type and gap voltage. Experiments were conducted using Taguchi L18 orthogonal array. From grey relational analysis, the optimum values found are duty cycle (8%), pulse current (18 Amp), pulse on time (200μsec) and voltage (40V). Experimental results revealed that the copper electrode gives the optimum performance in terms of higher MRR and lower EWR and SR. The optimized process parameters that simultaneously leading to a lower electrode wear ratio and higher material removal rate are then verified through a confirmation experiment

VIBRATION ANALYSIS OF PUMP WI TH VFD TECHNOLOGY

A Variable Frequency Drive (VFD) regulates the speed of a 3-phase AC electric motor by controlling the frequency and voltage of the power it delivers to the motor. Today, these devices (also known as Adjustable Speed Drives or Variable Speed Drives) are becoming prevalent in a wide range of applications throughout industry, from motion control applications to Cooling Towers, from water treatment facilities to machining areas, and many others. Considering the Economical and Environmental factors, it is advisable to modify the existing system rather than replacing it with new one. This project exercises this concept of vibration control in order to obtain smooth running by soft water pump and cooling tower pump

Correlation of disability with anxiety and depression in patients with chronic non-specific neck pain: a cross-sectional observational study

Background: Neck Pain is a prevalent musculoskeletal condition usually associated with disability. Psychological illnesses like anxiety and depression are commonly seen in chronic pain. The purpose of this study was to evaluate the relationship between anxiety, and depression with disability in patients with chronic non-specific neck pain.Methods: 87 patients with chronic non-specific neck pain were recruited in this cross-sectional study. The disability was evaluated with neck disability index, anxiety with the generalized anxiety disorder scale (GAD-7), and depression with patient health questionnaire (PHQ9).Results: Out of 87, 60 were females and 27 were male. For correlation, Spearman’s test was applied for the outcome measures. There was a moderate positive correlation found between disability and anxiety (r=0.55) and between neck pain and depression (r=0.63).Conclusions: There is a moderate positive correlation between self-reported disability and anxiety (GAD7) and also between self-reported disability and depression (PHQ9) in patients with chronic non-specific neck pain.

Assessment of dynamic balance and bone density in premenopausal and postmenopausal middle-age women: a comparative study

Background: Dynamic balance control is required to perform simple and complex mobility task in our day-to-day life. Deficit in balance can results in falls and fractures which can affect health-related quality of life. Menopause is also considered as a risk for fracture due to osteoporosis, which at later life becomes difficult to manage and causes higher morbidity. So, evaluation of balance and bone density is important in middle-age in women, so that we can plan and administer proper treatment strategies at an early stage which can reduce risk of falls and fractures. Therefore, the aim of the study was to assess and compare dynamic balance and bone density in premenopausal and postmenopausal middle-age women.Methods: Female participants in the age-group of 40-60 years were divided into premenopausal and postmenopausal group based on the criteria of cessation of menstrual cycles for minimum one year. Participants were assessed barefooted for dynamic balance by physical performance mobility tests such as narrow walk test (NWT), Figure-of-8 walk test (F8WT), obstacle walk test (OWT) and normal gait speed (NGS). Bone density was evaluated by using ultrasound bone densitometer at calcaneus in community setting. Results: The time taken to complete the NWT, F8WT, OWT was reduced significantly (p<0.05) in post-menopausal group, showing dynamic balance is significantly affected in postmenopausal women when compared with premenopausal women in middle-age group. Gait speed was also reduced in both the groups but it was significantly reduced (p<0.05) in postmenopausal group. Also bone density decreases significantly in post-menopausal group showing osteoporosis, premenopausal group also showed osteopenia when assessed by ultrasound bone densitometer in community setting.Conclusions: Dynamic balance and bone density significantly decreases in post-menopausal middle-age women as compared with pre-menopausal middle-age women

Marketing and economic feasibility of open sea cage culture

India is one of the largest fish producers in the world and contributes 5.43% to global fish production. India ranks second in fish production from aquaculture sector following China at top. Total fish production of India during 2010-11 was 8.42 million metric tones. Inland sector contributes about 5.2 million metric tones, whereas marine sector contributes 3.22 million metric tones. India has a long coastline of about 8,129 km and continental shelf area of 0.5 million km2. Declining catch rates in marine capture fisheries consequently created serious unemployment issues in rural coastal areas. Issues faced by marine fisheries sector in India have focused the attention of policy makers and rural fishers towards development of mariculture and coastal aquaculture activities as alternative livelihood option

Assessing intravenous midazolam for conscious sedation during cataract surgery

Background: A large number of geriatric populations above the age of 50 worldwide suffer from cataract. Cataract starts with short-sightedness and gradually worsens resulting in blurring of vision and inability to visualize and distinguish fine details. Surgery is the only available treatment for cataract. Anaesthesia is essential during cataract surgery to minimize pain caused during surgical procedure and to achieve favourable surgical outcome. The current investigation was aimed towards assessing the performance of intravenous midazolam used for conscious sedation during cataract surgery along with retrobulbar block.Methods: Current study is a randomized double blinded study performed for duration of 6 months on 60 patients undergoing cataract surgery at Terna medical college and hospital. Patients were divided in two groups; group M received 0.02 mg/kg midazolam diluted to 5 ml, group N received 5 ml normal saline before cataract surgery. All vital hemodynamic parameters were observed after 5 minutes of sedation, immediately after block administration and after every 15 minutes till the end of the surgery to assess the effect of sedation. Patients and surgeons satisfaction levels were also documented post-surgery.Results: Patients who were sedated with midazolam prior to cataract surgery along with block exhibited a significant decrease in hemodynamic parameters like SAP, DAP and heart rate which indicated effective sedation. Anxiety level also significantly decreased in the patients who received midazolam. No major adverse or intra-operative events were observed in the patients who received midazolam.Conclusions: Sedation with midazolam provides haemodynamic conditions favourable for cataract surgery along with high level of patient and surgeon satisfaction

Measurement of Body Mass Index (BMI) using PIC 18F452 Microcontroller

The aim of the project was to design a microcontroller based automated Body Mass Index (BMI)calculator with LCD display, which calculates the body mass index using the two basic parameters that are weight and height. The hardware of the project consists of a weighing mechanism i.e. weighing machine, which is used to calculate the body weight of a person, and a height sensing mechanism i.e. LDR, which is use to calculate the height of a person. The weight of the person is calculated in Kilograms and the height in meters in accordance of the BMI standard formula [3]. The microcontroller based automated Body Mass Index calculator is a useful device when it comes to controlling your weight and maintaining a healthy life style. The calculated weight of the person through weighing machine, converts the mechanical force into electrical signals that can be easily obtain after processing through microcontroller. While the height of the person is calculated by the LDR , when dark light falls on it the resistance value decreases and we get high voltage at output. All this data is manipulated through microcontroller and then the result is displayed on the LCD display and a message is sent through GSM module to the person about his BMI and the suggestions related to it. DOI: 10.17762/ijritcc2321-8169.16049