706 research outputs found
The UK Retail Industry and its Effect on Construction Sectors
The retail industry originated from the local high street to expanding shopping centres and out of town shopping
centres. However, in the past 15 - 20 years the industry has taken multiple hits and is now currently at its lowest
point ever. There is now a growing amount of shop closing, leaving multiple empty units due to previous recession
and increase in online shopping. Ever since the recession, many businesses struggled to survive and had reported
losses during this period due to lack of business, lack of investment in retail outlet, and shoppers having less
disposable income for shopping. Online shopping iscontinuouslygrowing, increasing from 5% in 2008 to 18% in
2019 as shoppersâ habits change in terms of where and how they shop[1].However, how frequent they shop will play
major roles on future procurement opportunities for the retail construction industry. The recent pandemic (covid-19)
with lockdown around the world, will change the way we shop though theeffects are not yet fully established.
Procurement for constructing retail units are not as low as earlier anticipated in comparison to the struggling
market.Hence, this research aims to analyse the changes in the retail industry, its effect on procurement of retail
outlets and longevity of the construction industry, with the objectives of creating an awareness within the industry
and government policy maker so that the resulting effect can be address to prevent unemployment this might
generate or loosing our high street retail outlet completely. The research uses secondary data and tender information
from Building Cost Information Services (BCIS), and identifies the following changes in Retail Industry: increase
online shopping, changes in consumer buying habits and changes to the customer shopping experience
Cost Changes in UK Design and Build Projects
The UK construction industry has seen many improvements over recent years, however one of the main ongoing
issues is cost. Many projects face the problem of exceeding their initial budget resulting in unanticipated additional
costs. It is important to avoid the client going over budget as this can ultimately affect the feasibility of a project.
This research aim to investigate the factors driving cost changes in design and build projects within the residential
sector in the UK construction industry. The gap in knowledge this study intends to contribute, is to investigate and
proffer solutions to the causes of variance between contract sum and final account in design and build procurement
option in the UK residential building projects. The research began with a brief literature review on different
procurement routes and the factors which drive cost changes in construction projects. The findings of the literature
review were used as the basis of the positivist research approach. The research used a mixed methodological
approach, consisting of a questionnaire survey and semi-structured interviews to investigate the research problem.
This research identified the design and build procurement route has succeeded in improving overall cost
performance of construction projects by allocating the responsibilities of certain additional costs to contractors.
However, despite these improvements, cost overruns are still problematic. Regardless of the chosen procurement
route, complete design information at tender stage is essential to reducing cost overruns. This research established
that subcontractorsâ performance ultimately depends upon the quality of site management. It is recommended to
minimise any additional costs to a project, firstly design information should be complete at the time of tender and
secondly the construction phase of the project should be managed by suitably qualified and experienced site
management team. However, this study was limited to the residential building industry in the UK, hence further
studies is highly recommended in developing countries as factors that causes this differences in contract sum and
final account may be prioritised differently from the analysis within this study
Rate and extent of losses from top spoilage in alfalfa silages stored in bunker silos
Alfalfa silages were made in pilot- and farm-scale silos, and five sealing treatments were compared. After 90 days, sealing dramatically reduced dry matter (DM) losses at the 5 and 10 inch depths in the farm silos and at the 0 to 12, 12 to 24, and 24 to 36 inch depths in the pilot silos. Extending the storage period to 180 days in pilot silos had no effect on DM losses for sealed or delay-sealed silages, but DM losses for unsealed silages continued to increase at all three depths. Placing a roof over the unsealed, farm-scale silo increased the silage DM content at all three depths, increased storage temperatures at the 10 and 20 inch depths, and reduced DM loss at the 10 inch depth compared to the unsealed silo without a roof. Rainfall was much above normal (16.8 inches during the first 90 days of storage; 11.2 inches the second 90 days) and contributed to huge increases in the moisture content of silage at the lower depths in the unsealed, no roof, pilot- and farm-scale silos. Sealing also increased the nutritive value of the silages at the 5 and 10 inch depths.; Dairy Day, 1994, Kansas State University, Manhattan, KS, 1994
Losses from top spoilage in horizontal silos
The top 3 ft of silage from 127 horizontal
silos was sampled at three locations across the
width of the silo during a 4-year period (1990
through 1993). Ninety-six percent of the silages
were either corn or forage sorghum, and only 18
percent of the silos were sealed with
polyethylene sheeting . Losses of organic matter
(OM) from spoilage were estimated by using
ash content as an internal marker. Sealing silos
dramatically reduced the estimated spoilage
losses in the top 3 ft.
All silages had greater estimated spoilage
losses in the top 18 inches in 1991 and 1993
than 1990 and 1992. Sealing reduced spoilage
losses of OM in the to p 18 inches by 16, 37, 19,
and 36 percentage units in 1990 through 1993,
respectively , and in the second 18 inches by 4,
13, 3, and 7 percentage units.
Dry matter (DM) contents were lower for
forage sorghum silages in the top 18 inches than
for corn silages in the first 3 years, and i n all 4
years, DM contents for sealed silages were
lower than those for unsealed silages. Silage
had higher pH values in the top 1 8 inches than
in the second 18 inches
Improving silage quality
Results at Kansas State University from over 200 laboratory-scale trials and 28 farm-scale trials showed that bacterial inoculants consistently improved preservation efficiency and nutritive value of the ensiled material. In contrast, anhydrous ammonia or urea decreased dry matter recovery and production per ton of crop ensiled. Economic analysis also favored the use of bacterial inoculants over nonprotein nitrogen additives. Research conducted using corn, sorghum, and alfalfa silages showed that sealing the exposed surface dramatically reduced top spoilage losses in bunker, trench, or stack silos
Rate and extent of losses from top spoilage in alfalfa silages stored in bunker silos
Alfalfa silages were made in pilot- and farm-scale silos, and five sealing treatments were compared. After 90 days, sealing dramatically reduced dry matter (DM) losses at the 5 and 10 inch depths in the farm silos and at the 0 to 12, 12 to 24, and 24 to 36 inch depths in the pilot silos. Extending the storage period to 180 days in pilot silos had no effect on DM losses for sealed or delay-sealed silages, but DM losses for unsealed silages continued to increase at all three depths. Placing a roof over the unsealed, farm-scale silo increased the silage DM content at all three depths, increased storage temperatures at the 10 and 20 inch depths, and reduced DM loss at the 10 inch depth compared to the unsealed silo without a roof. Rainfall was much above normal (16.8 inches during the first 90 days of storage; 11.2 inches the second 90 days) and contributed to huge increases in the moisture content of silage at the lower depths in the unsealed, no roof, pilot- and farm-scale silos. Sealing also increased the nutritive value of the silages at the 5 and 10 inch depths.; Dairy Day, 1994, Kansas State University, Manhattan, KS, 1994
Magnetic field diagnostics and spatio-temporal variability of the solar transition region
Magnetic field diagnostics of the transition region from the chromosphere to
the corona faces us with the problem that one has to apply extreme UV
spectro-polarimetry. While for coronal diagnostic techniques already exist
through infrared coronagraphy above the limb and radio observations on the
disk, for the transition region one has to investigate extreme UV observations.
However, so far the success of such observations has been limited, but there
are various projects to get spectro-polarimetric data in the extreme UV in the
near future. Therefore it is timely to study the polarimetric signals we can
expect for such observations through realistic forward modeling.
We employ a 3D MHD forward model of the solar corona and synthesize the
Stokes I and Stokes V profiles of C IV 1548 A. A signal well above 0.001 in
Stokes V can be expected, even when integrating for several minutes in order to
reach the required signal-to-noise ratio, despite the fact that the intensity
in the model is rapidly changing (just as in observations). Often this
variability of the intensity is used as an argument against transition region
magnetic diagnostics which requires exposure times of minutes. However, the
magnetic field is evolving much slower than the intensity, and thus when
integrating in time the degree of (circular) polarization remains rather
constant. Our study shows the feasibility to measure the transition region
magnetic field, if a polarimetric accuracy on the order of 0.001 can be
reached, which we can expect from planned instrumentation.Comment: Accepted for publication in Solar Physics (4.Mar.2013), 19 pages, 9
figure
High Temperature Electron Localization in dense He Gas
We report new accurate mesasurements of the mobility of excess electrons in
high density Helium gas in extended ranges of temperature and density to ascertain
the effect of temperature on the formation and dynamics of localized electron
states. The main result of the experiment is that the formation of localized
states essentially depends on the relative balance of fluid dilation energy,
repulsive electron-atom interaction energy, and thermal energy. As a
consequence, the onset of localization depends on the medium disorder through
gas temperature and density. It appears that the transition from delocalized to
localized states shifts to larger densities as the temperature is increased.
This behavior can be understood in terms of a simple model of electron
self-trapping in a spherically symmetric square well.Comment: 23 pages, 13 figure
The National Dutch Breast Implant Registry: user-reported experiences and importance
Background: Robust (inter-)national breast implant registries are important. For some, registries are an administrative burden, for others they represent a solution for the discussions involving breast implants. The DBIR is one of the first national, opt-out, clinical registries of breast implants, providing information for clinical auditing and product recall. Four years after its introduction, it is time to address usersâ comments in order to keep improving quality of registration, and patient safety. This study assesses usersâ feedback focusing on importance of registration, logistics and user experience, and areas of improvement. Methods: In May 2018, a standardized online studyâspecific questionnaire was sent out to all members of the Netherlands Society of Plastic Surgery. Descriptive statistics were reported in absolute frequencies and/or percentages. Results: A total of 102 members responded to the questionnaire (response rate, 24.2%). Of all respondents, 97.1% were actively registering in DBIR. Respondents rated the importance of registration in DBIR as 8.1 out of 10 points. Ninety-one respondents suggested improvements for the DBIR. All comments were related to registration convenience and provision of automatically generated data. Conclusions: Respondents believe that registration is highly important and worth the administrative burden. However, we should collectively keep improving accuracy, usability and sustainability of breast
Investigation on the aerosol performance of dry powder inhalation hypromellose capsules with different lubricant levels
HPMC capsules are made by a dipping process and a surface lubricant for the mould pins is an essential processing aid for removing dried capsules shells. For the purpose of this study, the level was determined by quantifying methyloleate (MO) a component found in the lubricant but not in the hypromellose capsules. Here we investigated the influence of the lubricant, low (10.81 ÎŒg/capsule = 60 mg/kg MO), medium (15.97 ÎŒg/capsule = 90 mg/kg MO) and high (23.23 ÎŒg/capsule = 127 mg/kg MO) content on powder (binary mixture of salbutamol: lactose, 1:50 w/w) aerosolization properties was investigated. Results indicated significantly lower emitted dose from capsules with 60 mg/kg MO. Furthermore, the 90 and 127 mg/kg MO level of lubricant capsules produced almost double the Fine Particle Dose & Fine Particle Fraction compared with the low level of lubricant. The data indicates that lubricant level within capsules has an influence on deposition profiles and amount of drug remaining in capsule and inhaler device after actuation. It is suggested lubricant levels greater than 60 mg/kg MO per capsule are required to minimise powder retention within capsules and maximise deposition profiles. AFM (atomic force microscopy) data suggest that internal surface roughness may be related with this phenomena
- âŠ