Obtaining particulate agglomerates from the recycling of multilayer containers and low density polyethylene

Currently, the interest and the need to innovate new materials through the use of waste materials has grown, which meet similar or improved physical, chemical and mechanical characteristics of the materials they will replace. During the present investigation, Multilayer Containers (EM) and Low Density Polyethylene (LDPE) were collected, particulate agglomerates with different proportions were obtained, the apparent density, water absorption, mass, volume, heat behavior, angle were determined. contact, machining and compression tests. With the objective of evaluating the proportions p / p in the properties. The advantage of the material obtained is that they do not generate waste and are 100% recyclable. The 90:10 ratio is the one that could be used in the construction industry as false walls, with a modulus of rupture of 52.7 N / mm2 and a compressive stress of 32.9 MP, because it can be machined without altering its characteristics. -physical houses; While the 85:15 and 80:20 proportions, since they cannot be machined, could be used as a floating support with a photocatalyst catalyst, due to the fact that these agglomerates have dimensional stability when in contact with water.

Cost-Effective Watermarking Scheme for Authentication of Digital Fundus Images in Healthcare Data Management

This paper presents a cost-effective watermarking scheme for the authentication of healthcare data management. The digital fundus images are one particular class of medical images and it is widely used for screening mass population, identifying early symptoms of various diseases in healthcare. The mass volume of such data and its management requires an effective authentication scheme, while it is exchanged on an open network. The proposed scheme uses a watermarking technique to authenticate the digital fundus images. The watermark is generated concerning the portions of the original image using Singular value decomposition (SVD) and the remaining portions are used for embedding. The embedding process uses interleaving concepts across the red and blue planes of the original images to make the number of embedding as constant. The constant number of embedding is fixed for the original size of the given image to make the scheme as computationally cost-effective. The experiment showed the maximum capacity of the proposed scheme is 329960 bits for an image of size 565x584x3. It modifies 43% of the total number of embedded pixels against jittering attacks at an average. Comparative analysis showed that the proposed scheme uses only 1/3 of the original image size for embedding by retaining good imperceptibility of 54 dB. The net performance of the proposed scheme is found to be constant and it makes a scheme as cost-effective.

Association of Aortic Distensibility and Left Ventricular Function in Patients With Stenotic Bicuspid Aortic Valve and Preserved Ejection Fraction: A CMR study

To determine the relationship between aortic distensibility and left ventricular (LV) remodeling, myocardial strain and blood biomarkers in patients with stenotic bicuspid aortic valve (BAV) and preserved ejection fraction (EF) by cardiovascular magnetic resonance (CMR). 43 stenotic BAV patients were prospectively selected for 3.0T CMR. Patients were divided into LV remodeling group (LV mass /volume ≥ 1.15, n=21) and non-remodeling group (LV mass/volume < 1.15, n=22). Clinical characteristics, biochemical data including cardiac troponin T(cTNT), N-terminal pro-B type natriuretic peptide (NT-proBNP) and creatine kinase isoenzyme were noted. Distensibility of middle ascending aorta (mid-AA) and proximal descending aorta, LV structural and functional parameters, global and regional myocardial strain were measured. Compared to non-remodeling group, LV remodeling group had significantly decreased LV global strain (radial: 26.04±8.70 % vs. 32.92±7.81 %, P=0.009; circumferential: -17.20±3.38 % vs. -19.65±2.34 %, P=0.008; longitudinal: -9.13±2.34 % vs. -11.63±1.99 %, P＜0.001), while radial and circumferential strain were significantly reduced at the base (radial: 28.52±9.47 % vs. 39.65±10.33 %, P=0.001; circumferential: -14.45±2.97 % vs. -17.22±2.38 %, P=0.002), longitudinal strain was significantly reduced at all regions (basal: -5.79±3.43 % vs. -8.65±2.42 %, P=0.003; mid: -8.62±2.21 % vs. -11.33±2.58 %, P=0.001; apical : -12.79±2.49 % vs. -15.04±2.20 %, P=0.003). In addition, mid-AA distensibility was independently associated with LV remodeling (β=-0.282, P=0.003), and it was also significantly correlated with LV global strain (radial: r=0.392, P=0.009; circumferential: r=-0.348, P=0.022; longitudinal: r=-0.333, P=0.029), cTNT (r=-0.333, P=0.029) and NT-proBNP (r= -0.440, P=0.003). In this cohort with stenotic BAV and preserved EF, mid-AA distensibility is found significantly associated with LV dysfunction, which may be an important factor for predicting adverse cardiovascular events and a potential therapeutic target to prevent heart failure.

SCULPTING INFRASTRUCTURE - A TEMPLE TO NATURE

<p>Off the coast of Paraparaumu lies one of New Zealand’s most iconic tourist attractions, the Kapiti Island nature reserve. Home to many native plant and wildlife species, this island sanctuary offers a unique nature experience that is under appreciated. The now flourishing nature deserves to be honoured a respected by locals and tourists of the Kapiti region. To date there is no designated building where ticket purchases and bio-security checks can be undertaken for island visitors. No obvious link exists from the local shops to the beach front where the visitors depart. This presents an opportunity for a gateway building to create a slice of the Island’s nature on the mainland. In doing so this would honour and celebrate the sanctuaries nature, installing a level of reverence for the island as visitors pass through. This thesis looks to explore the possible synergies between nature, highway infrastructure and religious architecture types. In order to develop a critical understanding of each architecture type and the possible synergies, explorations involving mass, volume and symmetry were conducted. These specific qualities put the project into a tradition of monumentality. As an understanding of this tradition developed Louis Kahn became an important precedent for me. Just as the late Louis Kahn achieved presence in his buildings, I argue that monumentality could be used in developing a successful synergy between infrastructure and religious architecture types. In the same way monuments and temples typically evoke respect I believe a monumental building on the Paraparaumu beach front will install a reverent homage towards nature as visitors to the island pass through. Throughout this thesis the series of design experiments involving traditional monumental qualities explore the synergies between nature, highway infrastructure and religious architecture types. The exploration utilizes the gateway building as a project to test the possible synergies in context . Operating within a design-led research methodology, varied approaches using multiple mediums explored formal language, spatial experience, composition and proportion of monumentality. The final design, situated on an existing roundabout, is a cylindrical concrete temple connecting the shop and beach front. The form is a subtracted mass obtained through an exploration of subtraction and composition. This temple evokes the desired homage towards nature as its visitors pass through to the island. Although grand in size, I argue, because the temple is situated on a traffic island, the over bearing power of monumentality is played down, respecting its surrounding context. As the design process unfolded a shift occurred in the preferred method for experiments. In the early stages a reliance on a digital experimentation method existed, however a shift towards an analogue experimentation method occurred as an understanding of monumentality and possible synergies between nature, highway infrastructure and religious architecture types were realised. This shift in methodology, required more precision and rigor for each experiment, invoking a deeper understanding of each success and failure. Critically reflecting on this transition forms the discussion of my thesis, understanding the opportunities of Paraparaumu and how a modestly scaled building can be developed that still imposes its significance in the surrounding context.</p>

SCULPTING INFRASTRUCTURE - A TEMPLE TO NATURE

<p>Off the coast of Paraparaumu lies one of New Zealand’s most iconic tourist attractions, the Kapiti Island nature reserve. Home to many native plant and wildlife species, this island sanctuary offers a unique nature experience that is under appreciated. The now flourishing nature deserves to be honoured a respected by locals and tourists of the Kapiti region. To date there is no designated building where ticket purchases and bio-security checks can be undertaken for island visitors. No obvious link exists from the local shops to the beach front where the visitors depart. This presents an opportunity for a gateway building to create a slice of the Island’s nature on the mainland. In doing so this would honour and celebrate the sanctuaries nature, installing a level of reverence for the island as visitors pass through. This thesis looks to explore the possible synergies between nature, highway infrastructure and religious architecture types. In order to develop a critical understanding of each architecture type and the possible synergies, explorations involving mass, volume and symmetry were conducted. These specific qualities put the project into a tradition of monumentality. As an understanding of this tradition developed Louis Kahn became an important precedent for me. Just as the late Louis Kahn achieved presence in his buildings, I argue that monumentality could be used in developing a successful synergy between infrastructure and religious architecture types. In the same way monuments and temples typically evoke respect I believe a monumental building on the Paraparaumu beach front will install a reverent homage towards nature as visitors to the island pass through. Throughout this thesis the series of design experiments involving traditional monumental qualities explore the synergies between nature, highway infrastructure and religious architecture types. The exploration utilizes the gateway building as a project to test the possible synergies in context . Operating within a design-led research methodology, varied approaches using multiple mediums explored formal language, spatial experience, composition and proportion of monumentality. The final design, situated on an existing roundabout, is a cylindrical concrete temple connecting the shop and beach front. The form is a subtracted mass obtained through an exploration of subtraction and composition. This temple evokes the desired homage towards nature as its visitors pass through to the island. Although grand in size, I argue, because the temple is situated on a traffic island, the over bearing power of monumentality is played down, respecting its surrounding context. As the design process unfolded a shift occurred in the preferred method for experiments. In the early stages a reliance on a digital experimentation method existed, however a shift towards an analogue experimentation method occurred as an understanding of monumentality and possible synergies between nature, highway infrastructure and religious architecture types were realised. This shift in methodology, required more precision and rigor for each experiment, invoking a deeper understanding of each success and failure. Critically reflecting on this transition forms the discussion of my thesis, understanding the opportunities of Paraparaumu and how a modestly scaled building can be developed that still imposes its significance in the surrounding context.</p>

Formula Organik Cair untuk Menambah Masa Tanam Semanggi di Lahan Kering

Clover farmers in Semanggi Village, Community Unit 3 of Kendung Sememi, Surabaya, plant clover every year. Clover is a year-round plant. In the long dry season, it is very risky to die. With intensive watering treatment and organic fertilizer, it is expected to grow better and produce very high yields. A demonstration plot of clover land would provide innovation in optimal and eco-friendly clover cultivation. The method of activities in this training included lectures on understanding clover cultivation in dry land and how to provide the right fertilizer for clover. Preparation for Implementation, Preparation of Business Places, Demonstration of clover cultivation in dry land required a plot of land available with complete facilities. The tools needed were provided in the right amount so that the demonstration plot process was not complicated. The physical yield of clover, seen from the leaves, was quite satisfactory because the leaves were wide enough (quality) and would automatically increase the mass volume in terms of weight (quantity).

The Choice of the Optimal Number of Discs in an MR Clutch from the Viewpoint of Different Criteria and Constraints

This paper focuses on magnetorheological clutches (MR clutches) with a disc structure that can be designed as one-disc or multi-disc clutches (number of discs: N = 1, N > 2). The main goal of the paper is to compare their overall dimensions (lengths and radii), masses, volumes, and characteristic factors—torque per mass ratio and torque per volume ratio for MR clutches that develop the same given clutching torque Tc but differ in the number of discs (it is assumed that the number of discs of the primary member varies from one to four). This analysis develops charts and guidelines that will allow designers to choose the appropriate number of discs from the view point of various criteria, and with various limitations regarding geometry, geometric proportions, mass, volume, or restrictions on the amount of active materials used in the manufacturing process. The limitations on the active materials used are of particular importance in the case of mass production. Our methodology uses a comparative study, which can also be used when comparing design solutions of other electromechanical converters.

Effect of extraction conditions on the concentration of phenolic compounds in Mexican oregano (Lippia graveolens Kunth) residues

Introduction: Mexican oregano (Lippia graveolens Kunth) leaves are marketed for use in food and for essential oil extraction. Phenolic compounds with antioxidant properties can be obtained from the residues (leaves without oil and stems) under appropriate extraction conditions. Objective: To evaluate the effect of extraction solvent and mass/volume ratio on phenolic compounds concentration and their antioxidant capacity in oregano residues. Materials and methods: Residual leaf (without oil) and stems of oregano were used to obtain extracts with 30, 50 and 80 % aqueous ethanol (ET30, ET50, ET80, respectively) and solvent mass/ volume ratios (1:10, 1:20 and 1:30). Yield in solids, total phenols concentration and flavonoids, and antioxidant capacity were evaluated in the extracts. Similarity analysis between extracts was performed by HPLC-DAD and the main phenols were identified by UPLC-MS. Results and discussion: Extract yields, phenol concentrations and flavonoids and antioxidant capacity for leaves were higher than for stems. The maximum concentration of phenols was obtained with ET80 and 1:30 ratio, which indicates better dissolution in ethanol than in water. The extracts ET50 and ET80 had chromatographic similarity of phenols in both residues; naringenin, taxifolin, eriodictyol, caffeic acid and luteolin were the major compounds. Conclusion: Ethanol-water concentrations and mass/solvent ratios are feasible for obtaining flavonoid and non-flavonoid phenolic compounds with antioxidant capacity from oil-free leaves and stems of oregano.

Monomer Conversion, Dimensional Stability, Biaxial Flexural Strength, Ion Release, and Cytotoxicity of Resin-Modified Glass Ionomer Cements Containing Methacrylate-Functionalized Polyacids and Spherical Pre-Reacted Glass Fillers

The aim of this study was to prepare RMGICs for pulp protection that contain polyacids functionalized with methacrylate groups (CMs) to enable light-activated polymerization without the need for toxic 2-hydroxyethyl methacrylate (HEMA) monomers. The effects of using CM liquids with 0 or 5 wt% HEMA on the physical/mechanical properties and cytotoxicity of the experimental RMGICs were assessed. Spherical pre-reacted glass fillers (SPG) were used as the powder phase. The experimental RMGICs were prepared by mixing SPG with CM liquid (0 wt% HEMA, F1) or CMH liquid (5 wt% HEMA, F2). Commercial materials (Vitrebond, VB; TheraCal LC, TC) were used for the comparisons. The degree of monomer conversion and fluoride release of both F1 and F2 were significantly lower than those of VB. F1 showed comparable biaxial flexural strength with VB but higher strength than TC. The dimensional stability (mass/volume changes) of the experimental materials was comparable with that of the commercial materials. F1 and F2 exhibited higher Sr/Ca ion release and relative cell viability than VB. The use of CMH liquid reduced the strength but enhanced the fluoride release of the experimental RMGICs. In conclusion, the experimental RMGICs showed comparable strength but lower cytotoxicity compared to the commercial RMGICs. These novel materials could be used as alternative materials for pulp protection.