A NIMBLE-WITTED DEFENSIVE CAP FOR EXCAVATORS

A nimble-witted defensive top has been made that can perceive of dangerous juncture in the excavation business. In the progression of defensive top, we have considered the three major sorts of danger, for instance, air quality, head defender ejection, and crash. The first is the obsession level of the hazardous gasses, for instance, Carbon monoxide, sulfur dioxide, nitrogen dioxide, and rugged issue. The second hazardous juncture was named a digger clearing thee digging defensive top off their head. An IR sensor is made unsuccessfully however an off-the rack IR sensor is then used to victoriously choose when the defensive top is on the excavator’s head. The third unsafe juncture is described as an juncture where excavators are smacked by a challenge against the head with a power

A MOTION ENABLE ROBOTIC ARM CONTROLLED THROUGH A SMART PHONE

This paper proposes a method for controlling a Robotic arm using an application build in the android platform. The android phone and raspberry pi board is connected through Wi-Fi. As the name suggests the robotic arm is designed as it performs the same activity as a human hand works. A signal is generated from the android app which will be received by the raspberry pi board and the robotic arm works according to the predefined program. The android application is the command centre of the robotic arm. The program is written in the python language in the raspberry board. The different data will control the arm rotation

Controlling Surface Chemistry of Liquid Metals to Enhance their Fluidic Properties

Gallium liquid metal alloys (GaLMA) are one of the key components of emerging technologies in reconfigurable, flexible, and printable electronics. Surface properties of GaLMA play important roles in its application in reconfigurable devices, such as tunable radio frequency antennas and electronic swilches. Reversible flow of GaLMA in microchannels of these types of devices is hindered by the presence of an oxide skin that forms spontaneously in ambient environment. The oxide film sticks to most surfaces leaving unwanted residues behind that can cause undesired electronic properties. This presentation describes a novel method that enables the movement of gallium liquid metal alloys through microfluidic channels without leaving any metallic residues on the channel walls. An interface modification layer (alkyl phosphonic acids) was introduced into the microfluidic system and the modified surface chemistry of the liquid metal was characterized by surface spectroscopy and microscopy methods.https://corescholar.libraries.wright.edu/physics_seminars/1021/thumbnail.jp

From Growth to Electronic Structure of Dipolar Organic Semiconductors on Coinage Metal Surfaces

In this thesis, I present a comprehensive study of the interfacial electronic structure and thin film growth of two types of dipolar organic semiconductors on noble metals by employing a surface science approach, which underlines the critical role of surface electronic states in determining the interfacial electronic structure and self-assembly of organic semiconductors. I show that the electronic structure at organic/metal interfaces is complex and depends on important factors such as molecular adsorption configuration, surface/molecule coupling strength, reactivity of the substrate, molecular electrostatics, and local film structure. I demonstrate the fundamental capability of the image potential states and resonances in probing the local film environment, especially in systems consisting of inhomogeneous film structure. I also show that the presence of adsorbates on a surface allows one to investigate quantum mechanical interference effects otherwise not accessible on the bare surface. The dipolar organic semiconductors studied here are vanadyl naphthalocyanine (VONc) and chloroboron-subphthalocyanine (ClB-SubPc). The single crystals of gold and copper with hexagonal surface symmetry (111) were used to investigate the interfacial properties of VONc and ClB-SubPc, respectively. The fundamental understanding of self-assembly of large π-conjugated organic semiconductors on metals is a crucial step in controlling fabrication of supramolecular structures. Here, I provide a first step in this direction with a detailed and quantitative analysis of molecular nearest-neighbor distances that unravels the fundamental intermolecular interactions of organic semiconductors on transition metal surfaces. I additionally investigated the interfacial electronic structure of these organic semiconductors to examine the relation between molecular adsorption orientation and charge transfer across the interface

Interfacial Electronic Structure of the Dipolar Vanadyl Naphthalocyanine on Au(111): “Push-Back” vs Dipolar Effects

We investigate the interfacial electronic structure of the dipolar organic semiconductor vanadyl naphthalocyanine on Au(111) in a combined computational and experimental approach to understand the role of the permanent molecular dipole moment on energy-level alignment at this interface. First-principles Density Functional Theory (DFT) calculations on such large systems are challenging, due to the large computational cost and the need to accurately consider dispersion interactions. Our DFT results with dispersion correction show a molecular deformation upon adsorption but no strong chemical bond formation. Ultraviolet photoelectron spectroscopy measurements show a considerable workfunction change of −0.73(2) eV upon growth of the first monolayer, which is well reproduced by the DFT calculations. This shift originates from a large electron density “push-back” effect at the gold surface, whereas the large out-of-plane vanadyl dipole moment plays only a minor role

The Spectrum Of Diseases Causing Fever Of Unknown Origin In Turkey: A Multicenter Study

Objective: The purpose of this trial was to determine the spectrum of diseases with fever of unknown origin (FUO) in Turkey. Methods: A prospective multicenter study of 154 patients with FUO in twelve Turkish tertiarycare hospitals was conducted. Results: The mean age of the patients was 42 +/- 17 years (range 17-75). Fifty-three (34.4%) had infectious diseases (ID), 47 (30.5%) had non-infectious inflammatory diseases (NIID), 22 (14.3%) had malignant diseases (MD), and eight (5.2%) had miscellaneous diseases (Mi). In 24 (15.6%) of the cases, the reason for high fever could not be determined despite intensive efforts. The most common ID etiologies were tuberculosis (13.6%) and cytomegalovirus (CMV) infection (3.2%). Adult Still's disease was the most common NIID (13.6%) and hematological malignancy was the most common MD (7.8%). In patients with NIID, the mean duration of reaching a definite diagnosis (37 +/- 23 days) was significantly longer compared to the patients with ID (25 +/- 12 days) (p = 0.007). In patients with MD, the mean duration of fever (51 +/- 35 days) was longer compared to patients with ID (37 +/- 38 days) (p = 0.052). Conclusions: Although infection remains the most common cause of FUO, with the highest percentage for tuberculosis, non-infectious etiologies seem to have increased when compared with previous studies. (C) 2007 International Society for Infectious Diseases. Published by Elsevier Ltd. All rights reserved.WoSScopu