FEATURES AND PROSPECTS OF DEVELOPMENT OF HYDROGEN ENERGY SYSTEMS IN THE REGIONS OF UKRAINE

The article deals with modern environmental and technological challenges of the energy market development process. The necessity and key vectors of functioning of the renewed energy system, where an important role is assigned to increasing the energy efficiency of measures for the prevention and adaptation of climatic changes to the global energy trend, have been clarified. As a result, there is an active introduction of innovative measures in the energy sector of Ukraine and regions. This can be traced in the segments of production, processing, transportation, storage and consumption of energy resources. The main document has been processed, which specifies and implements the main stages of the transformation of the energy sector: "Energy strategy of Ukraine for the period up to 2035: safety, energy efficiency, competitiveness." It is noted that the implementation of the strategic changes specified in the document is important and most acceptable, subject to the influence of sectoral, regional, socio- economic factors and the resolution of the escalation of the Ukrainian-Russian conflict. The future development of Ukraine is modeled in the conditions of decarbonization of energy, where the main place will belong to the hydrogen direction. The stages and features of the formation of hydrogen energy, the natural properties of hydrogen are considered, the world practice is considered. The priority and economically justified methods of using hydrogen to produce ammonia and as an alternative resource for oil and gas are noted and proposed. However, several obstacles are highlighted that institutionally prevent Ukraine and the regions from fully using hydrogen technologies.

Talaromyces saxoxalicus sp. nov., isolated from the limestone walls of the Old Cathedral of Coimbra, Portugal

Fungi are one of the main agents of stone biodeterioration worldwide, since they strongly interfere with its integrity, aesthetical and structural natural properties. During an experimental survey aimed to isolate fungal species contributing to the biodeterioration of the limestone walls of the Old Cathedral of Coimbra (Portuguese unesco World Heritage site), a Talaromyces species that could not be identified to any currently known species in this genus was isolated. Molecular phylogenetic analysis of the internal transcribed spacer, β-tubulin and RNA polymerase II subunit 2, placed this fungus in Talaromyces sect. Purpurei, while also pointing at its phylogenetic distinction from the remaining species in this section. Thus, a novel species, Talaromyces saxoxalicus sp. nov., is here proposed. Moreover, considering the isolation source of this fungus and in an attempt to understand its contribution to the overall stone monument biodeterioration, the species's in vitro biodeteriorative potential was also evaluated. The results highlighted that the species exhibited an in vitro biodeteriorative ability (calcium oxalate crystal formation), highlighting its potential deteriorative profile.

Disturbance of Mangrove Forest Due To Climate Change: The Prospects of Sundarban

Mangrove forest has a significant importance in protecting natural disaster, environmental sustainability and in local economy. In Bangladesh, only mangrove forest Sundarban also servicing for environmental sustainability, protecting tropical cyclone, local employment generation and so on. Thus, its natural properties are being hampered through people involvement and natural calamities. Moreover, Rapid population growth and climate change stimulating these disturbances of natural properties of Sundarbans. This paper aim at how climate change is disturbing mangrove forest in Bangladesh and how this disturbance may be threatful for future environmental sustainability. Interrelation between climate change and disturbance of Sundarbans has been established through various exiting literature review and for quantifying the amount of disturbance remote sensing data has been applied and future threat of environmental sustainability has been assessed by comparing regeneration capacity of Sundarban after a tropical cyclone and amount of disturbance by a tropical cyclone. Result found that climate change increasing the frequency of natural calamities and affecting significantly on mangrove forest due to its complex bio-diversity and strategic location before regeneration of disturbance. On the other hand, threat of mangroves as well as environment is associated with temperature rising, ice melting and sea level rising are increasing because of frequent occurrence, magnitude as comparing with regeneration capacity.

Study on the development of improved routing technology of CC-15A cotton separator

The present article examines the existing problems in pneumo-transporters. It also presents advantages of the proposed improved model and the results of research on the Uster HVI 1000 laboratory equipment with high average length, uniformity index in length, short fiber index. The ability to maximize the natural properties of the products and significantly extend the service life of the separator design through this improved device has been proven on the basis of theoretical and practical analysis.

Colour volumetric display based on holographic-laser-excited graphics using drawing space separation

A volumetric display generates a graphics that can be viewed from 360$$^{\circ }$$ ∘ by representing the 3D information of an object as voxels in physical space. However, the natural properties of physical objects, such as 3D information and colors, and the seamless relationships between graphics and humans make it difficult to implement such displays. Here, we introduce a novel system that combines the spatial generation of femtosecond-laser-excited emission points using computer-generated holograms and beam scanning with the drawing space separation method. We demonstrate the drawing of volumetric graphics that can be color-expressed in voxel units in the air. This system enables the drawing of volumetric graphics in the air, accurate color representations, and robust graphics that are not destroyed by contact with users or objects. It also lays the foundation for the implementation of future volumetric displays.

The effect of corn stalk fiber loading on tensile properties and absorption ability on polybutadiene adipate terephalate composite.

The natural fiber have recently become attractive and been widely used as reinforcement material to replace synthetic fiber as a concern to environmental issue. However, there are some of natural fiber unable to perform well as reinforcement material due to their natural properties. In this research study, the corn stalk fiber was selected as natural fiber reinforced with polybutadiene adipate terephalate (PBAT) to form bio-composite materials. There are two type of PBAT used which are in pellets form and powder form. The objectives of using different type of PBAT are to identify their compatibility with filler and the dispersion of corn stalk fiber in both forms of matrix. Then, the both type of PBAT also compounded with difference loadings of corn stalk fiber. Lastly, their effect on tensile properties and absorption ability were identified. After the test is run, the composite of neat PBAT in powder form shows highest tensile strength and elongation at break but lowest in water absorption percentage compared to others. However, the composition of pellets PBAT with 30wt% of corn stalk fiber shows highest percentage of water absorption compared to others.

The Effect of Biopolymer Chitosan on the Rheology and Stability of Na-Bentonite Drilling Mud

The utilization of greens resources is a grand challenge for this century. A lot of efforts are paid to substitute toxic ingredients of the conventional drilling mud system with nontoxic natural materials. In this paper, the effect of the natural polymer chitosan on the rheology and stability of sodium-bentonite drilling mud was investigated in the polymer concentration range of 0.1–3.0 wt.%. Both the shear and time dependent rheological properties of pure chitosan, pure bentonite and bentonite–chitosan dispersions were studied. Moreover, zeta potential measurements were used to evaluate the stability of bentonite-chitosan suspension. Adding chitosan improved the natural properties of drilling mud, namely: yield stress, shear thinning, and thixotropy. The viscosity of bentonite suspension increased significantly upon the addition of chitosan in the concentration range of 0.5 to 3.0 wt.% forming network structure, which can be attributed to the interactions of hydrogen bonding between -OH clusters on the bentonite surface with the NH group in the chitosan structure. On the other hand, dispersed chitosan–bentonite suspension was observed at low chitosan concentration (less than 0.5 wt.%). Increasing both bentonite and chitosan concentrations led to the flocculation of the bentonite suspension, forming a continuous gel structure that was characterized by noteworthy yield stress. The desired drilling mud rheological behavior can be obtained with less bentonite by adding chitosan polymer and the undesirable effects of high solid clay concentration can be avoided.

Off-Piste

<p><b>Mount Ruapehu is an apex for New Zealand’s North Island. Not only does the grand scale of the mountain captivate many, the geological features of this vast landscape are also part of the maungas charm and unique to this place.</b></p> <p>In 1887 this sacred landscape was gifted to the people by paramount chief of Ngāti Tūwharetoa, Te Heuheu Tukino IV. This gift lunched the creation of New Zealand’s first National Park. Overtime this place of significance has become commercialized. Hosting two ski fields which gathers hundreds of thousands of people every year and constantly growing.</p> <p>This thesis addresses the question, how do we engage visitors with such an extraordinary landscape, representing the unique place it is.</p> <p>Researching through design around key themes such as place, cultural landscapes, therapeutic landscapes and meaningful experience. Unraveling many key qualities of the site, merging a pathway of discovery, joining both cultural and physical needs into design.</p> <p>Design explorations take place at three quintessential sites of Ruapehu. The River. The Peak. The Summit Zone. Drawing from the elemental qualities that make up each site, atmosphere within each design and overall form strives to represent these natural properties. Each site works through four design phases investigating the possibilities of development amongst the landscape.</p> <p>Ruapehu is a unique site carrying the weight of a long history of cultural and geological significance. This thesis introduces a discussion about the future of tourism in our sacred landscapes. Exploring possibilities of how architecture can respect and enhance such a unique place.</p>

Off-Piste

<p><b>Mount Ruapehu is an apex for New Zealand’s North Island. Not only does the grand scale of the mountain captivate many, the geological features of this vast landscape are also part of the maungas charm and unique to this place.</b></p> <p>In 1887 this sacred landscape was gifted to the people by paramount chief of Ngāti Tūwharetoa, Te Heuheu Tukino IV. This gift lunched the creation of New Zealand’s first National Park. Overtime this place of significance has become commercialized. Hosting two ski fields which gathers hundreds of thousands of people every year and constantly growing.</p> <p>This thesis addresses the question, how do we engage visitors with such an extraordinary landscape, representing the unique place it is.</p> <p>Researching through design around key themes such as place, cultural landscapes, therapeutic landscapes and meaningful experience. Unraveling many key qualities of the site, merging a pathway of discovery, joining both cultural and physical needs into design.</p> <p>Design explorations take place at three quintessential sites of Ruapehu. The River. The Peak. The Summit Zone. Drawing from the elemental qualities that make up each site, atmosphere within each design and overall form strives to represent these natural properties. Each site works through four design phases investigating the possibilities of development amongst the landscape.</p> <p>Ruapehu is a unique site carrying the weight of a long history of cultural and geological significance. This thesis introduces a discussion about the future of tourism in our sacred landscapes. Exploring possibilities of how architecture can respect and enhance such a unique place.</p>