Design and fabrication of smart ceiling mop with adjustable head

The Ceiling cleaning process is one of the tedious tasks ever which involves removing algae, mold, lichen, dust, and moss from the surface. Cleaning of the roof becomes very difficult when the height of the roof is very high also an excess human effort is required which also makes the labor feel discomfort, in addition to muscle pain. By considering all the above-discussed difficulties, we have developed a concept of a semi-automatic ceiling cleaning machine that is capable of cleaning dirt, grime, algae, etc. on the ceiling. Enabling the machine in accessing hard-to-reach areas on the ceilingsand at higher altitudes. To make the controlling of the machine user-friendly an electric drive is incorporated, such that a person with less technical knowledge can access it with high accuracy. The power source for the entire operation is provided with the help of a battery which is internally installed in the setup. As an added advantage, the multi-head system is implanted, using this our setup can be used as a traditional brush head, and by changing the vacuum head, the setup is capable of performing dust collection operations using vacuum pressure. To make a machine which will take care of the safety of persons, save time and also shouldn't damage false ceiling structure. This method of ceiling cleaning can be used in hotels, offices, etc. which will give a more appealing look. This method is suitable for small, medium as well as large-scale applications.

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Design and Fabrication of Beach Cleaning Machine

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.l3146.1081219 ◽

2019 ◽

Vol 8 (12) ◽

pp. 1597-1602

Keyword(s):

Environmental Pollution ◽

Marine Environment ◽

High Efficiency ◽

Cleaning Machine ◽

Human Effort ◽

Cost Efficient ◽

User Friendly ◽

D Model

The beach cleaning machine is a vehicle that can be used to pick up rags from the shores thus keeping the beaches clean. A great number of people visit beaches very often for relaxation and recreation. People throw plastics quite often on shores without knowing the consequences. This results in environmental pollution which affects the marine environment and increases the risks of diseases. In order to overcome this we have designed and fabricated a beach cleaning machine that will clean the beaches by picking up rags with minimal human effort. Here, we have incorporated an Arduino board and developed an app through which we will be able to control the operations of the machine within a range of 10 meter through Bluetooth. A 3-D model of the design has been developed and analysis has been performed. The machine developed is a cost efficient vehicle with high efficiency and also user friendly

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Stellar magnetic imaging from spectropolarimetric data

Symposium - International Astronomical Union ◽

10.1017/s0074180900083091 ◽

1996 ◽

Vol 176 ◽

pp. 53-60 ◽

Cited By ~ 1

Author(s):

J.-F. Donati

Keyword(s):

Small Amplitude ◽

High Accuracy ◽

Spectral Lines ◽

New Method ◽

Doppler Imaging ◽

Magnetic Imaging ◽

Active Stars ◽

Surface Fields ◽

Very High

In this paper, I will review the capabilities of magnetic imaging (also called Zeeman-Doppler imaging) to reconstruct spot distributions of surface fields from sets of rotationnally modulated Zeeman signatures in circularly polarised spectral lines. I will then outline a new method to measure small amplitude magnetic signals (typically 0.1% for cool active stars) with very high accuracy. Finally, I will present and comment new magnetic images reconstructed from data collected in 1993 December at the Anglo-Australian Telescope (AAT).

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Shell-crossing in a ΛCDM Universe

Monthly Notices of the Royal Astronomical Society Letters ◽

10.1093/mnrasl/slaa198 ◽

2020 ◽

Vol 501 (1) ◽

pp. L71-L75

Author(s):

Cornelius Rampf ◽

Oliver Hahn

Keyword(s):

Dark Matter ◽

Perturbation Theory ◽

Large Scale ◽

Cold Dark Matter ◽

Three Dimensional ◽

Random Initial Data ◽

Recursion Relations ◽

Indispensable Tool ◽

First Time ◽

Very High

ABSTRACT Perturbation theory is an indispensable tool for studying the cosmic large-scale structure, and establishing its limits is therefore of utmost importance. One crucial limitation of perturbation theory is shell-crossing, which is the instance when cold-dark-matter trajectories intersect for the first time. We investigate Lagrangian perturbation theory (LPT) at very high orders in the vicinity of the first shell-crossing for random initial data in a realistic three-dimensional Universe. For this, we have numerically implemented the all-order recursion relations for the matter trajectories, from which the convergence of the LPT series at shell-crossing is established. Convergence studies performed at large orders reveal the nature of the convergence-limiting singularities. These singularities are not the well-known density singularities at shell-crossing but occur at later times when LPT already ceased to provide physically meaningful results.

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Assessing Annual Actual Evapotranspiration Based on Climate, Topography and Soil in Natural and Agricultural Ecosystems

Climate ◽

10.3390/cli9020020 ◽

2021 ◽

Vol 9 (2) ◽

pp. 20

Author(s):

Kleoniki Demertzi ◽

Vassilios Pisinaras ◽

Emanuel Lekakis ◽

Evangelos Tziritis ◽

Konstantinos Babakos ◽

...

Keyword(s):

Water Balance ◽

Large Scale ◽

Hydrological Model ◽

Actual Evapotranspiration ◽

Irrigated Agriculture ◽

Climate Data ◽

Natural Ecosystems ◽

Loading Effects ◽

Very High ◽

Of Greece

Simple formulas for estimating annual actual evapotranspiration (AET) based on annual climate data are widely used in large scale applications. Such formulas do not have distinct compartments related to topography, soil and irrigation, and for this reason may be limited in basins with high slopes, where runoff is the dominant water balance component, and in basins where irrigated agriculture is dominant. Thus, a simplistic method for assessing AET in both natural ecosystems and agricultural systems considering the aforementioned elements is proposed in this study. The method solves AET through water balance based on a set of formulas that estimate runoff and percolation. These formulas are calibrated by the results of the deterministic hydrological model GLEAMS (Groundwater Loading Effects of Agricultural Management Systems) for a reference surface. The proposed methodology is applied to the country of Greece and compared with the widely used climate-based methods of Oldekop, Coutagne and Turk. The results show that the proposed methodology agrees very well with the method of Turk for the lowland regions but presents significant differences in places where runoff is expected to be very high (sloppy areas and areas of high rainfall, especially during December–February), suggesting that the proposed method performs better due to its runoff compartment. The method can also be applied in a single application considering irrigation only for the irrigated lands to more accurately estimate AET in basins with a high percentage of irrigated agriculture.

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Development of Efficient and Selective Processes for the Synthesis of Commercially Important Chlorinated Phenols

Organics ◽

10.3390/org2030012 ◽

2021 ◽

Vol 2 (3) ◽

pp. 142-160

Author(s):

Keith Smith ◽

Gamal A. El-Hiti

Keyword(s):

Lewis Acid ◽

Large Scale ◽

Commercial Application ◽

Chlorinated Phenols ◽

Sulphur Compounds ◽

Inorganic Solids ◽

Solvent Free Conditions ◽

Commercially Important ◽

Ortho Cresol ◽

Very High

para-Selective processes for the chlorination of phenols using sulphuryl chloride in the presence of various sulphur-containing catalysts have been successfully developed. Several chlorinated phenols, especially those derived by para-chlorination of phenol, ortho-cresol, meta-cresol, and meta-xylenol, are of significant commercial importance, but chlorination reactions of such phenols are not always as regioselective as would be desirable. We, therefore, undertook the challenge of developing suitable catalysts that might promote greater regioselectivity under conditions that might still be applicable for the commercial manufacture of products on a large scale. In this review, we chart our progress in this endeavour from early studies involving inorganic solids as potential catalysts, through the use of simple dialkyl sulphides, which were effective but unsuitable for commercial application, and through a variety of other types of sulphur compounds, to the eventual identification of particular poly(alkylene sulphide)s as very useful catalysts. When used in conjunction with a Lewis acid such as aluminium or ferric chloride as an activator, and with sulphuryl chloride as the reagent, quantitative yields of chlorophenols can be obtained with very high regioselectivity in the presence of tiny amounts of the polymeric sulphides, usually in solvent-free conditions (unless the phenol starting material is solid at temperatures even above about 50 °C). Notably, poly(alkylene sulphide)s containing longer spacer groups are particularly para-selective in the chlorination of m-cresol and m-xylenol, while, ones with shorter spacers are particularly para-selective in the chlorination of phenol, 2-chlorophenol, and o-cresol. Such chlorination processes result in some of the highest para/ortho ratios reported for the chlorination of phenols.

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Microcomputer Simulations of Presidential Elections

News for Teachers of Political Science ◽

10.1017/s0197901900005110 ◽

1983 ◽

Vol 38 ◽

pp. 20-20

Author(s):

Robert S. Ross

Keyword(s):

Social Sciences ◽

Large Scale ◽

Role Playing ◽

Science Students ◽

Instructional Programs ◽

Santa Barbara ◽

Large Scale Systems ◽

The Social ◽

User Friendly ◽

Machine Interaction

Simulations have been an important adjunct to instructional programs for some time. These have ranged from games, or role playing exercises, such as SIMSOC or Internation Simulation, to student-machine interaction, such as the inter-school simulation run out of University of California, Santa Barbara in the early 70's, to the all machine activities found in some of the early SETUPS. Having social science students use the mainframe computer, however, always posed problems: it definitely was not user-friendly and most instructors had little if any training or interest in the use of large scale systems.The wide-spread use of the micro computer is not only revolutionizing areas traditionally relying upon the computer, but is going to have an impact on the social sciences as well.

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Truck Appointment System for Cooperation between the Transport Companies and the Terminal Operator at Container Terminals

Applied Sciences ◽

10.3390/app11010168 ◽

2020 ◽

Vol 11 (1) ◽

pp. 168

Author(s):

Hyeonu Im ◽

Jiwon Yu ◽

Chulung Lee

Keyword(s):

Large Scale ◽

Container Terminal ◽

Container Terminals ◽

The Past ◽

Cooperation Model ◽

Appointment System ◽

New Form ◽

Truck Appointment System ◽

Import Container ◽

Very High

Despite the number of sailings canceled in the past few months, as demand has increased, the utilization of ships has become very high, resulting in sudden peaks of activity at the import container terminals. Ship-to-ship operations and yard activity at the container terminals are at their peak and starting to affect land operations on truck arrivals and departures. In response, a Truck Appointment System (TAS) has been developed to mitigate truck congestion that occurs between the gate and the yard of the container terminal. The vehicle booking system is developed and operated in-house at large-scale container terminals, but efficiency is low due to frequent truck schedule changes by the transport companies (forwarders). In this paper, we propose a new form of TAS in which the transport companies and the terminal operator cooperate. Numerical experiments show that the efficiency of the cooperation model is better by comparing the case where the transport company (forwarder) and the terminal operator make their own decision and the case where they cooperate. The cooperation model shows higher efficiency as there are more competing transport companies (forwarders) and more segmented tasks a truck can reserve.

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Hole Accuracy during Deep Hole Drilling for Hydraulic Cylinder Application

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.984-985.67 ◽

2014 ◽

Vol 984-985 ◽

pp. 67-72 ◽

Cited By ~ 1

Author(s):

R. Clifford Benjamin Raj ◽

B. Anand Ronald ◽

A. Velayudham ◽

Prasmit Kumar Nayak

Keyword(s):

Feed Rate ◽

Drill Hole ◽

Hydraulic Cylinder ◽

High Accuracy ◽

Diameter Ratio ◽

Hole Drilling ◽

Deep Hole ◽

Deep Hole Drilling ◽

Very High ◽

Continuous Chip

Deep-hole drilling is a process in which the hole length will be very high when compared to diameter of the drill hole (i.e. length to diameter ratio will be greater than 5). Drilling a deep hole with very high accuracy is difficult process. The current project is about the production of deep hole with the aim to produce a chip which is not a continuous chip and also not a powdery chip. These conditions can be attained by varying the spindle speed and the tool feed rate.

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Cost Effective Swath Bathymetry

Marine Technology Society Journal ◽

10.4031/002533201788057982 ◽

2001 ◽

Vol 35 (4) ◽

pp. 33-45 ◽

Cited By ~ 3

Author(s):

Peter Hogarth

Keyword(s):

Processing Time ◽

Cost Effective ◽

High Accuracy ◽

High Coverage ◽

Swath Bathymetry ◽

World Survey ◽

Set Up ◽

Very High ◽

Harbor Area ◽

Wide Swath

Between 23rd and 25th July 2001 GeoSwath, a high specification shallow water wide swath bathymetry system, was used to survey the entire Portsmouth NH Harbor area. This paper deals with the results of this survey, illustrating the potential for significant reductions in the high costs, which have prevented widespread proliferation of Swath Bathymetry systems to date. Data, including a complete DTM gridded to 1 m resolution, will be presented and discussed in detail. These results show that the system is very easy to set up and use, requires greatly reduced boat and processing time, whilst offering high accuracy and very high coverage and resolution when used in a real-world survey of a dynamic harbor environment.

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