BIM based on-site surveying: Utilization of InfraModel3-models in on-site surveying

There has been increasing usage of powerful information technologies in infrastructure construction field. There are number of software solutions from the past few years which have been making the process of construction smoother. Land surveying is one such process which this work focuses on through an Android application. The thesis proposes a tool which has the ability to replace the traditional land surveying methods for checking height of the surface layers of a road or rail by utilization of BIM models. There were three important considerations kept in mind when developing this application. Firstly, the application should be simple enough to use by anyone on the work site. Secondly, the results provided by the application should be fast enough. Thirdly, the application should fully utilize the potential of the external GNSS rover and provide the maximum possible accuracy of the rover. This work also presents the results of the interviews conducted with project managers/engineers of different organizations in Finland and Sweden. The interviews were aimed at knowing participants views on the Android application, various challenges faced by them, skill level in some construction field related technologies and tools used by them during work. The mentioned areas were explored as the thesis was not only aimed at developing a software solution but was also concerned on exploring all the factors which affect the usage of the software tools in construction companies

Derandomizing Isolation Lemma for K3,3-free and K5-free Bipartite Graphs

The perfect matching problem has a randomized NC algorithm, using the celebrated Isolation Lemma of Mulmuley, Vazirani and Vazirani. The Isolation Lemma states that giving a random weight assignment to the edges of a graph, ensures that it has a unique minimum weight perfect matching, with a good probability. We derandomize this lemma for K3,3-free and K5-free bipartite graphs, i.e. we give a deterministic log-space construction of such a weight assignment for these graphs. Such a construction was known previously for planar bipartite graphs. Our result implies that the perfect matching problem for K3,3-free and K5-free bipartite graphs is in SPL. It also gives an alternate proof for an already known result – reachability for K3,3-free and K5-free graphs is in UL.

For investigate the role of ultrasound and platelets count as an important marker for the diagnosis and prognosis of dengue patients

Background: Dengue is although self limiting viral disease but if severe complications take place than it becomes lethal. Plasma leakage is main pathology which results in fluid deposits in various organs. This plasma leakage is related to platelet count. Most important thing in treating dengue patient is to know the complications at the earliest. And ultrasound is the most sensitive and easily approachable, cost effective investigation for detecting the complications.Methods: This cross-sectional observational pilot study was carried out in the department of radiodiagnosis, pandit bhagwat dayal Sharma institute of medical sciences, Rohtak. One hundred and two patients with serologically confirmed dengue fever were included in this study. Ultrasound examinations were carried out by ultrasound machine with 5-13 MHZ probe by radiologists. Abdomen and thorax scanning were done thoroughly. Important findings like Gall bladder thickening hepatomegaly, splenomegaly, free fluid which are pathological markers for dengue were specially seen. Then these findings are relate to the age group and platelet count.Results: By applying chi square test we found that there is statistically difference in number of patients in age group 16-30 yrs having gall bladder wall thickening, hepatomegaly, free fluid, splenomegaly and pleural effusion as compared to other age groups (p<0.05) an also in patients having less than 20,000 platelets, only gall bladder thickening, ascites and hepatomegaly were statistically more significant as compared to other groups having more number of platelets (p<0.05).Conclusions: So, ultrasound and platelet count are important markers for diagnosis and prognosis of dengue patients. Ultrasound and Platelets count are important markers for the diagnosis as well as prognosis of dengue patients

Alcoholism with central pontine demyelination: a case report

Central pontine myelinolysis is a non-inflammatory demyelinating disease characterized by loss of myelin with relative neuron sparing, associated with rapid correction of hyponatremia and sometimes hypernatremia or chronic alcoholism. We are reporting a case of 52 year old male patient who was chronic alcoholic from past 20 years, presented to us with complaints of altered sensorium and dysarthria of 5 days duration .He was investigated and diagnosed as case of central pontine myelinosis associated with chronic alcoholism