An Adaptive Liquid Level Controller Using Multi Sensor Data Fusion

This paper describes a design of adaptive liquid level control system using the concept of Multi Sensor Data Fusion (MSDF). Purpose of the work is to design a controller for accurately controlling the level of liquid in a process tank with liquid temperature changes. The proposed objective is obtained by i) implementing a MSDF framework using Pau’s framework for measuring liquid level and temperature, ii) analyzing the behavior of actuator output for variation in liquid temperature, and iii) designing a suitable adaptive controller which will produce desired control action for controlling liquid level accurately using neural network algorithms. Outputs from sensors are fused to obtain the fluid level output and also relation of level transmitter output for change in temperature. This information is used by controller to train the neural network so as to tune the controller parameters (proportional gain, integral constant, and differential constant), to drive the actuator. Results obtained show that the system is able to control liquid level within range of 1.915% of set point even with variations in liquid temperature

Clinicopathological study of carcinoma stomach over a period of 5 years

Background: Gastric cancer represents one of the most frequent neoplasias. Although its incidence decreased over the last few decades in industrialized countries, it still represents nowadays a major cause of death through cancer throughout the world. The purpose of this study was to identify clinicopathological parameters in gastric carcinoma.Methods: A total of 115 gastrectomy specimen received in 5 year period at a tertiary care center was analyzed. The clinical data was recorded. After fixing the specimen in 10% formal saline for 24 hours the gross appearance of the specimen was studied. The gross findings were recorded following Borrmann classification. The tissue blocks were routinely processed and stained with H&E stain. The results were tabulated.Results: The prevalence of gastric carcinoma was 4.46%, with male: female ratio of 3:1 and mean age of 50years.The prevalence of carcinoma stomach was more common in rural areas and poor socio economic status. Sixty percent of patients who consumed mixed diet suffered from carcinoma and 82.8% had history of intake of alcohol. Carcinoma stomach was more common in A blood group. The tumor was more common in pyloric antrum (73.04%). According to Borrmann classification type II tumour was the commonest (66.09%) of the lesions. Commonest histological pattern was adenocarcinoma; intestinal type (86.72%).Conclusions: The prevalence of carcinoma stomach in the present study was 4.46%. High prevalence of gastric carcinoma was seen in patients with history of smoking, intake of alcohol and consumption of mixed diet. Carcinoma stomach was more common in A blood group followed by B blood group. Adenocarcinoma of intestinal type was the commonest

The role of brush cytology in diagnosing lesions of biliary tract

Background: Biliary brushing during endoscopic retrograde cholangiography pancreatography (ERCP) helps in the diagnosis of lesions of biliary tract. We compared the cellular and diagnostic results of various samples taken from the stricture site with the help of brushings taken from stricture site. The aim of this study was to know the age and sex prevalence in subjects suffering from biliary tract lesions and to know the role of ERCP guided brush cytology smears in diagnosing various lesions of exrtrahepatic biliary tract.Methods: It is a hospital based study conducted in the Department of Pathology, Andhra Medical College. Brush cytology smears were obtained from twenty patients and cytological examinations was conducted. All the clinical details and investigation reports were collected.Results: The age group of patients in this study ranged from 30 to 75 years. The numbers of cases analyzed during this period were 20. The mean age of presentation was 55 years. Male: Female ratio was 3:2. Majority of these cases presented with obstructive jaundice. Brush cytology smears from distal bile duct showed malignant cells hence our study revealed distal bile duct is more vulnerable to malignancy. Among all the 20 cases, 12 cases (60%) were reported as cholangiocarcinoma and the remaining 8 cases (40%) were included under benign/reactive. Among benign/reactive lesions, one case showed Micro-filarial infestation with reactive atypia of cells.Conclusions: The current study was conducted to assess the relative accuracy of brush cytology for diagnosis of malignant biliary strictures

Massive nodular melanoma scalp: a case report

Melanoma is responsible for 1% to 2% of all cancer deaths around the world. Nodular melanoma often carries a poor prognosis because of no prodromal radial growth phase, early distant metastasis and significant tumour volume. We present a case of nodular melanoma measuring 20x10x8 cm in 28 year old tribal women

Peritoneal Dialysis in Dengue Shock Syndrome May Be Detrimental

Dengue shock syndrome is the most severe form of Dengue that can be fatal. Nonresponders to standard therapy need intensive care. This paper outlines the clinical features, complications, and outcomes of Dengue Shock Syndrome not responding to standard therapies and needing supportive care in a tertiary referral intensive care unit of a developing country. Nearly one-third die within 3 days of admission to ICU. Peritoneal dialysis predicts the worst outcomes

Primary monophasic synovial sarcoma, a rare pulmonary mesenchymal neoplasm: report of a case with review of literature

Synovial sarcoma is an uncommon malignant soft tissue tumour which occurs primarily in young adults. It most commonly occurs in the extremities near large joints, particularly the knee joint. Primary pulmonary synovial sarcoma has only occasionally been reported in the literature. We report a case of primary pulmonary monophasic synovial sarcoma in a 23 year old male patient presenting with recent onset of hemoptysis, cough and expectoration. Although an uncommon primary site, the characteristic histological and immunohistochemical features, and fluorescence in situ hybridization analysis for the characteristic (X;18) translocation, with thorough clinical and imaging correlation allowed a definitive diagnosis of primary pulmonary monophasic sarcoma. The mainstay of treatment for these unusual tumours remains complete surgical excision followed by adjuvant radiation and/or chemotherapy

Efficient overlaynodes selection for data transmission through multipath in network

We control the vital collection of nodes that must bifurcate traffic for attaining the maximum multi commodity net throughput. We put on our optimal node placement algorithm to numerous graphs and the consequences show that a small portion of overlay nodes is adequate for attaining maximum throughput. To conclude, we suggest a heuristic policy (OBP), which enthusiastically controls traffic bifurcations at overlay nodes. In all premeditated simulation scenarios, OBP not only accomplishes full throughput, but also diminishes delay in judgment to the throughput optimal backpressure routing

Proliferating trichilemmal tumour: a case report with review of literature

Proliferating trichilemmal tumour is a solid-cystic neoplasm that shows trichilemmal differentiation similar to that of the isthmus of the hair follicle histologically characteristed by the presence of trichilemmal keratinization.  Proliferating Trichilemmal Tumour (PTT) appears mainly in elderly women and is in general a solitary lesion on the scalp. Proliferating trichilemmal tumours generally have a benign clinical course, and a clinical differentiation from squamous cell carcinoma is often difficult. We report a case of PTT in a 30 year old man presenting as a solitary 10x8 cm ulcerated nodule on the scalp since 3 months clinically resembled a malignant tumour. The therapeutic approach is surgical removal with a wide clear margin

Mixed germ cell tumour of testis: a case report with review of literature

Testicular tumours are rare neoplasm. Mixed germ cell tumour is the most common histological variant. Essentially, any admixture of the germ cell tumours as seen in pure form may be seen, one of the most common admixtures being embryonal carcinoma and teratoma. Unfortunately many of these patients present late usually with some complications. We present a rare case of mixed germ cell tumour with predominant embryonal carcinoma and yolk sac tumour in adolescent patient with multiple metastatic foci at the time of presentation

Study of soft tissue sarcomas over a period of 3 years

Background: Soft tissue malignancies constituted a heterogeneous group of rare solid tumors of mesenchymal cell origin with distinct clinical and pathological features. The aim of the study was to know the prevalence of soft tissue sarcoma, sex, age and site distribution, histopathology and various treatment options adopted with follow up.Methods: A total of 26 cases of soft tissue sarcoma were analyzed for a three-year period. Clinical presentation, age and sex distribution, histological type and treatment modalities adopted were recorded and analyzed.Results: Out of 26 cases 44% of cases were between 30-50 years and 44% of tumors were situated in lower extremity. The commonest histological type was liposarcomas and fibrosarcoma. Lymph node metastasis was seen in 4% of cases. Distant metastasis was present in 3 cases, 2 with lung metastasis and l with lung and liver metastasis. Surgery was the main modality of the treatment. 12% of the cases presented with recurrent tumor, the duration between surgery and recurrence was 6 months. Only 38% turned for follow up, 2 patients succumbed to death because of multiple pulmonary secondaries and chest infections.Conclusion: In the present study, all the cases of soft tissue sarcoma presented in late stage of the disease due to illiteracy and lack of health education. Recurrence was seen in 12% of cases. The overall survival rates and quality of life of the patients can be improved by frequent health camps at primary health centers for early detection of the disease, providing adequate health education, diagnostic and management facilities