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The Challenges for Sustainable Development in Food Industry Management
No full textRecently, the topic of sustainable development has been gaining popularity.
The desire to improve the quality of the environment is becoming extremely
important. Moreover, many noticeable changes have taken place in the food
industry. From a national perspective, the choice is mainly for products
from family-owned, traditional companies, marked on the label with the
description bio, organic or eco.
From the European perspective, the focus is on biodegradable packaging,
technological innovation and adequate supply. The pandemic and increased
customer awareness have also influenced the important requirements of
sustainability. Many companies on the market support other companies
in achieving a sustainable level, for example, by decarbonizing and reducing
their carbon footprint. These changes are affecting our world; therefore,
today’s society and economists are turning to other models and strategies for
doing business
Multi-function woven fabric with carrier particles of PU-TiO2 coating filled in local pipes
No full textFor preventing nano material from coming into contact with skin to generate a toxic effect, Nano TiO2
is prepared by a sol-gel method. The appearance, the crystal form and particle size of TiO2 are researched
through a scanning electron microscope (SEM) , an X-ray diffraction (XRD) and other instruments. PUTiO2
coating is prepared, the coating is uniformly coated to an outer layer of semen cassiae. Local pipes
are formed on weft-wise front surface and back surface of woven fabric through a special process. By
taking the local pipes with good sealing performance as carriers, semen cassiae is filled in the pipes.
Two-ply silver-plated polyester/cotton (65/35) yarns are used as the raw material of warp and weft of
the fabric, for providing special health care and protection functions for the fabric. An average particle
size of the semen cassiae is 2.54 mm by testing, and all technological parameters are calculated to obtain
a best number of semen cassiae particles added at the tubular structure. By testing, the results show that
the ultraviolet protection factor (UPF), the transmittance(UVA), the maximum SE, the minimum SE,
the heat preservation rate, bacteriostatic rate against escherichia coli and staphylococcus aureus of the
designed fabric was 48.9, 2.92%, 51.3 (dBm),32.32 (dBm), 33.2%, 92.2%, 95.3%, respectively
Halochromic properties of a 5-aminoimidazole-4-carboxamidrazone and its application to wool
No full textThe application of stimuli-responsive molecules in textiles is an important field due to its potential in
various areas of flexible sensing technology. In particular, pH plays an important role in nature, humans,
and several processes. The pH of body fluids is one of the best indicators of disturbed health conditions.
Thus, the development of textiles with halochromic properties has been increasingly attractive to display
in real-time pH variations. Wool is one of the most important natural fibres because of its warmth and
comfort. However, the dyeing process is costly and high energy-consuming. In this work, the
halochromic properties under different buffers (acetate, phosphate, Britton-Robinson, artificial sweat,
and artificial wound exudate) of a previously synthesized 5-aminoimidazole-4-carboxamidrazone were
studied. Moreover, the first attempt to dye a wool knitted fabric with this molecule at a low temperature
was performed. The developed material showed interesting halochromic properties (colourless in acidic
pH and blue colour in the alkaline pH), even using artificial body fluids
Leaf morphology modification of acer pseudoplatanus and celastrus orbiculatus in response to light pollution at night
No full textRośliny wykorzystują światło jako źródło energii do fotosyntezy.
Jest ono także sygnałem regulującym wzrost i rozwój roślin. Ciemność
umożliwia regulację rytmów biologicznych roślin. Przeprowadzono
doświadczenie, w trakcie którego jednoroczne siewki roślin drzewiastych (klon
jawor i dławisz okrągłolistny) uprawiano w doniczkach. Rośliny były umieszczone
w naturalnych warunkach dnia i nocy (kontrola) oraz oświetlane
w trakcie nocy lampą LED (zanieczyszczenie światłem), ponadto, jedną część
roślin ustawiono w szklarni, natomiast drugą poza szklarnią. Niezależnie od
warunków termicznych światło w nocy wpływało na istotne zmniejszenie
długości blaszek liściowych. Podobnie szerokość blaszek była mniejsza pod
wpływem nocnego oświetlania z wyjątkiem liści klonu rosnącego w szklarni.
Nocne oświetlanie stymulowało zwiększenie grubości blaszek liściowych
badanych roślin. Podsumowując, liście pod wpływem zanieczyszczenia
światłem były mniejsze, ale grubsze, co przełoży się na dyfuzję gazów do ich
wnętrza.Plants use light as an energy source for photosynthesis. The light is
also a signal that regulates the growth and development of plants. Darkness
enables the regulation of the biological rhythms of plants. We carried out an
experiment, during which one–year–old woody plants (sycamore maple and
round–leaved choke) were grown in pots. The plants were placed in natural
conditions of day and night (control) and illuminated during the night with an
LED lamp (light pollution) in addition, one part of the plants was situated in the
greenhouse and the other one – outside the greenhouse. Regardless of the
thermal conditions, the light at night significantly reduced the length of the
leaf blades. Similarly, the width of the leaf blades was smaller under the
influence of night lighting, except for maple leaves growing in the greenhouse.
Night illumination stimulated an increase in the thickness of the leaf blades of
the studied plants. To sum up, the leaves under the influence of light pollution
were smaller but thicker, which will affecting the gases’ diffusion into their
interior
Comparative evaluation effects of thermal degradation, burning behavior, and intumescent char formation of cotton fabrics coated with alkaline and acidic casein solutions
No full textThe present research work was aimed to investigate and study the effect of coatings of different
concentrations and pH of aqueous casein solutions on thermo-oxidative properties, flame retardant
performance, and intumescent char formation phenomenon of cotton fabrics. The flame retardant
behavior of fabric samples was found to increase with an increase in the concentration of casein solutions
in both alkaline and acidic pH conditions. The casein solution of acidic pH was found to yield more char
residue than the alkaline casein solution, which evinced their better thermo-oxidative properties. The
SEM micrographs of char residues also revealed the formation of stronger and coherent char with the
presence of intumescence. Furthermore, the phenomenon of intumescence was largely observed in the
case of cotton fabric samples coated with acidic casein solution
Use of artificial intelligence for creative textile designs
No full textCreativity in the design process is not only based on the problem solving ability or the utility of the
outcome of the process, but it is also based on producing novel outcomes satisfying aesthetic
expectations. Due to the creative aspect of the design process depending on defining and referring to
evolving human defined aesthetic values and taste, applying artificial intelligence to textile and apparel
design is one of the major challenges. This research aims to explore a new system for creating textile
print designs by artificial intelligence methods. A dataset including various patterns such as geometrical
shapes, animal figures, flowers and abstract print designs were collected from a textile printing company
to be assessed and used to generate new patterns by AI. As a result, original textile print designs were
generated by integrating machine learning systems. It is suggested that AI based generative design
algorithms have immense potential to create novel textile design samples
Knitted shields against electromagnetic waves
No full textThe purpose of the research is to counteract the negative impact of electromagnetic waves on the human body by using knitted textile barriers. Four variants of knitted fabrics with plain weft stitches were
designed and manufactured from electrically conductive yarns with resistance of 490 ohms. The variants of the knitted fabrics differed significantly in structural parameters, including loop density – varying from 15 to 0.9 thousand loops and fabric cover from 64 to 33%. The barrier properties against reflected waves at frequencies from 2 to 7 GHz ranged from 10 to 64 dB. It has been proven that shielding effectiveness SE depends on stitch geometry and structural parameters of the knitted fabric. It is a good starting point for further research on the optimization of the performance of knitted barriers against electromagnetic waves
Guidance of the resonance energy flow in the mechanism of coupled magnetic pendulums
No full textThis paper presents a methodology of controlling the resonance energy exchange in mechanical
system consisting of two weakly coupled magnetic pendulums interacting with the magnetic field
generated by coils placed underneath. It is shown that properly guided magnetic fields can
effectively change mechanical potentials in a way that the energy flow between the oscillators
takes the desired direction. Studies were considered by using a specific set of descriptive functions
characterizing the total excitation level, its distribution between the pendulums, and the phase
shift. The developed control strategies are based on the observation that, in the case of antiphase
oscillation, the energy is moving from the pendulum subjected to the repelling magnetic field, to
the oscillator under the attracting field. In contrast, during the inphase oscillations, the energy
flow is reversed. Therefore, closed-loop controller requires only the information about phase shift,
which is easily estimated from dynamic state signals through the coherency index. Advantage of
suggested control strategy is that the temporal rate of inputs is dictated by the speed of beating,
which is relatively slow compared to the carrying oscillations