How to increase the operational efficiency on dry vacuuming service in Spotless cleaning Hamilton?

This research is based on Spotless private limited company. The organisation has various services within it, but this research is concentrated on its cleaning service, to increase the operational efficiency of dry vacuuming by surveying thirty workers regarding organisation, and interviewing the supervisor. This involves both quantitative and qualitative research so is a mixed method. The results gave a new perspective to the research. Initially the research started with one problem and ended up dealing with three problems. The research findings are that there is a need • to increase the power and decrease the weight of vacuum machines. • to give regular follow up training for workers • to increase the number of permanent workers The recommendation to the company to increase operational efficiency on their dry vacuuming service are: first step, to give training to the employees. Second step, to buy new vacuum machines, which have good power and weigh less. Third step, the company should start recruiting new permanent workers. By doing all the steps the company can out-shine its competitors, and increase the operational efficiency in dry vacuuming services

Optimisation of operations of wet vacuuming the carpets in Spotless services

The research topic, Optimisation of operations of wet vacuuming the carpets in Spotless cleaning services, was chosen by analysing problems in the operations of the organisation. Mixed methods involving survey and an interview, were used in the research. The survey was taken with thirty workers from the organisation, and the supervisor was interviewed. From the results, the findings are: • The machine is hard to pull and handle during the work • Time allotted to employees is insufficient to complete the work • Time allotment is a challenge for the supervisor • Safety & PPE measures needs to be increased Solutions for the problem faced by the organisation are: follow-up / refresher training programmes need to conducted: an upgrade to easy-to-use machines that will help the workers to do the work within the given time. If the organisation follows the recommendations it will help the company to optimise wet vacuuming service operations

Schema Vacuuming in Temporal Databases

Temporal databases facilitate the support of historical information by providing functions for indicating the intervals during which a tuple was applicable (along one or more temporal dimensions). Because data are never deleted, only superceded, temporal databases are inherently append-only resulting, over time, in a large historical sequence of database states. Data vacuuming in temporal databases allows for this sequence to be shortened by strategically, and irrevocably, deleting obsolete data. Schema versioning allows users to maintain a history of database schemata without compromising the semantics of the data or the ability to view data through historical schemata. While the techniques required for data vacuuming in temporal databases have been relatively well covered, the associated area of vacuuming schemata has received less attention. This paper discusses this issue and proposes a mechanism that fits well with existing methods for data vacuuming and schema versioning

The joy of vacuuming? How the user experience affects vacuum cleaner longevity

An apparent reduction in the average lifetime of vacuum cleaners is explored in this paper in relation to their perceived usability and increasingly frequent product replacement. Motivations for product disposal combine perceived and real product failure with a perceived or real improved product offer. From an historical perspective, vacuum cleaners typify this pattern, continually offering a ‘cheaper and improved’ product. Vacuum cleaner manufacturers reinvigorate the sense of satisfaction and revulsion associated with extracting dirt from our homes through new performance focused product development. For example, increased motor power, filtration, bag-less machines and clear bin compartments have all acted as sales drivers, whilst cost effective materials and offshore and more efficient manufacturing have reduced purchase prices. The latter, cost-driven, processes can create machines that are more likely to be functionally and aesthetically damaged in use, reinforcing the trend for faster replacement. The market appears likely to continue to focus on improved user experience, with growth in market share for lighter weight cordless battery powered machines posing the risk of an increased environmental burden. Drawing from qualitative and quantitative research undertaken for a study for Defra, we explore the user’s relationship to the product, investigating the frustrations and joys of vacuum cleaner use and ownership. The findings illustrate that the revulsion and attraction of cleaning, as well as the tedium and satisfaction fostered by the product, have direct implications for vacuum cleaner longevity

Autonomous Electric Vacuum Robot

Autonomous Electric Vacuum Robot is a cleaning robot specifically vacuuming. The robot's sole purpose is to replace the conventional method of vacuuming a floor which is time-consuming for the users whom have more important commitments to attend to. It consists of two systems working together to achieve the cleaning task

Effect of secondary swirl in supersonic gas and plasma flows in self-vacuuming vortex tube

This article presents the results of simulation for a special type of vortex tubes - self-vacuuming vortex tube (SVVT), for which extreme values of temperature separation and vacuum are realized. The main results of this study are the flow structure in the SVVT and energy loss estimations on oblique shock waves, gas friction, instant expansion and organization of vortex bundles in SVVT.Comment: 6 pages, 5 figure

Porous Concrete Design

Porous concrete is a special kind of concrete that has high porosity. The only difference between porous concrete and normal concrete is that a porous concrete mix does not consist of sand or other small particles. The lack of sand and small particles creates voids in the concrete. The voids that area created are the reason why water is able to pass through a porous concrete mix. Porous concrete is used for low traffic areas such as parking lots and pavements. The main purpose of porous concrete is to reduce or even eliminate storm water runoff which has a number of benefits. For this project, the team developed a porous pavement mixture that will be applicable for practical and real life use. This means that the porous concrete mixture must have a certain permeability and compressive strength. There were two main parts to the project. Initially the team found what value of water to cement ratio would give the highest possible compression strength. The team started with experimenting with water to cement ratio due to the fact that it is the only variable that affects compressive strength and barely, if at all, affects permeability. After figuring out what the best water to cement ratio was, the next part of the project was about experimenting with other variables that affect the permeability and compression strength of a porous concrete. After acquiring the best water to cement ratio for the highest compression strength, the second part of the experiment will consist of varying two other variables, which were aggregate size and types of aggregate. By optimizing these variables, an optimal porous concrete mixture was found that could be used for practical use. The hope was to find a mixture that can be used for either pavements or parking lots

The relevance of the evolution of experimental studies for the interpretation and evaluation of some trace physical evidence

In order for trace evidence to have a high evidential value, experimental studies which mimic the forensic reality are of fundamental importance. Such primary level experimentation is crucial to establish a coherent body of theory concerning the generation, transfer and persistence of different forms of trace physical evidence. We contend that the forensic context, at whatever scale, will be specific to each individual forensic case and this context in which a crime takes place will influence the properties of trace evidence. it will, therefore, be necessary in many forensic cases to undertake secondary level experimental studies that incorporate specific variables pertinent to a particular case and supplement the established theory presented in the published literature. Such studies enable a better understanding of the specific forensic context and thus allow More accurate collection, analysis and interpretation of the trace physical evidence to be achieved. This paper presents two cases where the findings of secondary level experimental studies undertaken to address specific issues particular to two forensic investigations proved to be important. Specific pre-, syn- and post-forensic event factors were incorporated into the experimental design and proved to be invaluable in the recovery, analysis and in achieving accurate interpretations of both soil evidence from footwear and glass trace evidence from a broken window.These Studies demonstrate that a fuller understanding of the specific context within which trace physical evidence is generated and subsequently collected, as well as an understanding of the behaviour of certain forms of trace physical evidence under specific conditions, can add evidentiary weight to the analysis and interpretation of that evidence and thus help a court with greater certainty where resources (time and cost) permit