Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
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Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
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By absorbing the advanced technology from the world, we researched and designed PF series impact crusher.…
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Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
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Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
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The vibrating screen is a kind of sieving equipment of international advanced level, developed by our…
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Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
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Lubrication plays a key role in successful manufacturing of pharmaceutical solid dosage forms; lubricants are essential ingredients in robust formulations to achieve this. Although many failures in pharmaceutical manufacturing operations are caused by issues related to lubrication, in general, lubricants do not gain adequate attention in the …
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The study depends on comparing between different anti-adherents either in its common form such as talc and GMS or in a complete system such as PlasACRYL which …
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Basic Rheological Concepts in Adhesives and Sealants Rheology is the science of the deformation and flow of matter. It is mainly concerned with the response of materials to an applied mechanical force, with response ranging from irreversible flow, reversible elastic deformation or a combination of both. 3-5 The most important and …
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The driving mechanism of a film formation at higher temperature, correspond to increase in surface energy of talc with an increase in temperature as was measured employing inverse gas chromatography (IGC) [3]. In this study, talc samples exhibited relatively high apolar surface energy that increased with preconditioning temperature.
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Anti-corrosion properties of bio-inspired surfaces: a systematic review of recent research developments. Qingyun Ma a, Qing Yang * b, Jialiang Zhang a, Fangzheng Ren a, Chongxiao Xia a and Feng Chen * a a State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information, …
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Conductive hydrogels have attracted tremendous interest in the construction of flexible strain sensors and triboelectric nanogenerators (TENGs) owing to their good stretchability and adjustable properties. Nevertheless, how to simultaneously achieve high transparency, self-healing, adhesion, antibacterial, anti-freezing, anti-drying, and …
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increased by about 9.6min, reaching 25.5min. And when the concentration of talc reaches 40g/100ml, the oil burning in the anti burning tank did not ignite the gasoline in the oil pan and
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Magnetic wall-climbing robots have great potential applications due to their unique characteristics such as large adhesive force and loading capacity. However, they may be likely to overturn or slip when climbing over obstacles on a vertical wall. Conventional solutions usually improve the obstacle-surmounting performance of wall …
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Antisticking power appeared to be dependent on the basal dimensions of talc, and on the ratio value of the external specific surface measured by diffractometry to …
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Zinc oxide is a mineral ingredient of various pharmacological preparations to treat diaper dermatitis and other skin conditions, to protect the epidermis, and to prevent sunburn.
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The fuel burning in the anti burning tank did not ignite the gasoline in the oil pan, and burned out at 51.5 min. It was related to the structure of composite and the properties of talc. Due to the introduction of talc, the viscosity of the composite increased. ... The flame retardancy and mechanism of talc composite s should be ...
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Anti-adhesion-based therapies can be effective in prevention and treatment of bacterial infections, but further work is needed to elucidate underlying mechanisms. A review on anti-adhesion therapies of bacterial diseases Infection. 2019 Feb;47(1):13-23. doi: 10.1007/s15010-018-1222-5. ...
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The results showed that talc composite had good flame retardant resistance. when the concentration of talc reached 40 g/100 ml, the 50% liquid separation time of the composite was 21.1 min.
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The mechanism of respiratory failure is unclear; however, the authors speculated that a systemic inflammatory response or talc impurity may have been responsible. ... Talc is a highly effective pleurodesis agent when administered either via poudrage or slurry in patients with pleural effusion or pneumothorax. Success rates are similar for the ...
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Few burn dressings can self-regulate the optimal humidity levels that are required for wound healing, while also providing good anti-adhesive properties to prevent damage that can occur when wound dressings are changed. Consequently, a water-soluble carboxymethylcellulose sodium/sodium alginate/chit …
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Introduction. Adhesions are defined as abnormal attachments between tissues and organs [1]. Intra-abdominal adhesions may be classified as congenital or acquired [2]. Congenital adhesions are a consequence of embryological anomaly in the development of the …
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Anti-friction mechanism. 1. Introduction. Tribology is a discipline that researches the friction, wear, ... the lubricating properties of talc, mica, silicon nitride and so on are slightly worse. ... the bonding method first mixes the adhesive with the solid lubricating material according to different mass ratios and coats it on the surface of ...
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The article describes new silicone self-adhesive adhesives modified with the addition of talc. The obtained self-adhesive materials were characterized to determine …
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The filling of preliminarily stabilized CAs with silver or nickel leads to the obtainment of a conductive adhesive that preserves the strength properties after thermal cycling from –60 to +90°C (adhesive based on ethyl cyanoacrylate) and from –60 to +200°C (adhesive based on allyl cyanoacrylate) for 3 h at every temperature (12 cycles ...
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The possible mechanisms of anti-adhesion to a cell are closely associated with the design criteria for polymer-modified bioinert surfaces, which contain surface energy, electrostatic interaction, steric repulsion, hydration, and topography [1], [8], [11], [12], [13].These anti-adhesion materials have been considered and developed for …
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Understanding anti-adhesion mechanism is the key to increase the efficiency of natural antimicrobial agents and enhance their application in fresh produce industry. In this review, we summarized recent studies about the factors affecting bacterial adhesion, anti-adhesion mechanism and applications of natural antimicrobial agents to control ...
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This study aims to introduce xanthan gum as a favorable selective depressant for talc depression in sulfide copper flotation. As chalcopyrite is a crucial industrial mineral and a vital constituent of high-quality copper mines [15], it was chosen to be on behalf of sulfide copper minerals.Micro-flotation experiments on single minerals as well as …
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A considerable studies have been devoted to study the ageing resistance and ageing mechanism of opaque ... and the possible flame-retardant and anti-ageing mechanisms of PEG-BA in the coatings is proposed. ... was conducted to measure the adhesion classification of the coatings according to ASTM D3359-09 on a QFH-A cross …
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Request PDF | Potential exploration of nano-talc particles for enhancing the anti-wear and extreme pressure performance of oil | A series of nano-oils containing nano-particles (NPs) of talc (≈ ...
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Work as preservatives, lubricant, adhesives, propellants, glidants, flavors, colors, disintegrant, diluents and bulking agents, fragrances, coating agents, sweetening agents, polishing agents etc. ... Commonly used glidants are talc, glycerol monostearate, magnesium stearate and precipitated silica. Talc is the most effective glidant for ...
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The Zinsan-Kitazaki model adds the surface tension hydrogen bond component, γ h, which is different from the polar van der Waals force that only contains γ p.As long as the liquid surface tension, γ L, γ L d, γ L p, the hydrogen bond component, γ L h, of the three liquids, and the CAs of the liquid on the materials are known, we can …
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The 2D nanomaterials are nanosheets with monolayer or multilayer structures and relatively large diameterto-thickness ratios, such as graphene oxide (GO) [26], clay [27], talc, phosphate-based ...
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1. Introduction. The oral route of drug administration is the most common and preferred route for drug delivery, as it enables easy ingestion, self-medication, accurate dosage, flexible and controlled dosing schedule, and patient compliance with a low chance of administration difficulty [1, 2].It also has some major disadvantages such as the first …
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Antisticking power varies according to the talc considered. Besides chemical properties, it is necessary to assess physical properties related to functionality. It is …
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Talc is a mineral composed primarily of magnesium, silicon and oxygen. It is a substance often found in cosmetic and personal hygiene products including baby powder, adult body powders and facial powders. ... Mechanism of action. It has very good absorptive properties. Absorption. Intended for local use only. Volume of distribution. …
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Diatomaceous earth and talc prove to be the most efficient antiblocks currently available. Indications are that talc may be the antiblock of choice if the lowest cost/performance ratio is desired. DE appears to offer the most promise for minimizing total inorganic content, and potentially minimizing negative optical properties (i.e. haze.)
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After administration of talc, adhesions were prominently formed in the peritoneal cavity, which indicated each organ and peritoneum adhered severely to one another. Neither LMW-TEMPO nor nRIG showed the sufficient anti-adhesive effects and some of the mice still suffered from adhesions even after treatment with commercially …
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An anti-tacking agent is a necessary component in a coating system to prevent tackiness of the dosage forms during the manufacturing process. Commonly, …
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Background: Peritendinous adhesion that simultaneous with tendon healing link the healing tendon to the surrounding tissue. It results in functional disability, and has a significant adverse impact on health as well as social and economic development. Methods: Based on a search in the PubMed and Web of Science database, the research articles were …
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The adhesion phase is the first step of colonization, and anti-adhesive strategies represent an effective mechanism for inhibiting the following phases of infection [18,19,21,25]. Among surface structures, adhesins are specialized bacterial proteinaceous adhesive molecules with defensive and offensive characteristics, able to interact with …
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