Aesthetic Requirements Research Articles

Upper Extremity Wounds Treated with Biodegradable Temporizing Matrix versus Collagen-Chondroitin Silicone Bilayer

Objective This study aims to compare outcomes between Novosorb Biodegradable Temporizing Matrix (BTM) and Integra collagen-chondroitin silicone for upper-extremity wound reconstruction.Methods This retrospective study analyzed adult patients who underwent wound reconstruction with either BTM or Integra at our institution between 2015 and 2020.Results Forty-eight patients were included: 31 (64.6%) BTM and 17 (35.4%) Integra. Mean age was 44.0 (range: 18–68) years. Age, race, sex, smoking, comorbidities, and defect size were similar between groups. Wound etiologies included 12 (25.0%) burn, 22 (45.8%) trauma, and others. Median template size was 133 cm2 for BTM and 104 cm2 for Integra (p = 0.526). Skin grafting was performed after 14 (45.2%) and 14 (82.4%) wounds treated with BTM and Integra, respectively (p = 0.028). Template complications of infection and dehiscence were comparable. Skin-graft complications occurred in five (35.7%) and three (21.4%) wounds in BTM and Integra, respectively (p = 0.031). Skin-graft failure rates were comparable (p = 0.121). Mean number of secondary procedures required after template placement was higher in the Integra group (BTM, 1.0; Integra, 1.9; p = 0.090). Final healing was achieved in 17 (54.8%) BTM and 11 (64.7%) Integra wounds (p = 0.694). Median time to healing was 4.1 months after BTM and 2.6 months after Integra placement (p = 0.014).Conclusion Compared with Integra, BTM achieved comparable wound healing and complication rates. Fewer secondary procedures and skin grafts were observed in BTM wounds, likely as a result of the coronavirus disease 2019 pandemic. At our institution, 100 cm2 of product costs $850 for BTM and $3,150 for Integra, suggesting BTM as an economical alternative to fulfill the high functional and aesthetic requirements of upper-extremity wounds.

Functional Hydrogels and Their Applications in Craniomaxillofacial Bone Regeneration.

Craniomaxillofacial bone defects are characterized by an irregular shape, bacterial and inflammatory environment, aesthetic requirements, and the need for the functional recovery of oral-maxillofacial areas. Conventional clinical treatments are currently unable to achieve high-quality craniomaxillofacial bone regeneration. Hydrogels are a class of multifunctional platforms made of polymers cross-linked with high water content, good biocompatibility, and adjustable physicochemical properties for the intelligent delivery of goods. These characteristics make hydrogel systems a bright prospect for clinical applications in craniomaxillofacial bone. In this review, we briefly demonstrate the properties of hydrogel systems that can come into effect in the field of bone regeneration. In addition, we summarize the hydrogel systems that have been developed for craniomaxillofacial bone regeneration in recent years. Finally, we also discuss the prospects in the field of craniomaxillofacial bone tissue engineering; these discussions can serve as an inspiration for future hydrogel design.

MICROSTRUCTURAL AND MICROMECHANICAL TESTS OF TITANIUM CROWNS

Fixed prosthetic restorations must meet the health requirements in terms of the protection of the tissues of the oral cavity, biomechanical requirements for optimal tissue stress and the strength and wear resistance of the structure, aesthetic requirements related to the location of the gingival margin, as well as the shape, thickness, and colour of the veneers. The aim is to evaluate the impact of manufacturing technology on the microstructure and micromechanical parameters of titanium crowns. The material of the analysis are prosthetic crowns made of Ti6Al4V alloy for the maxilla premolars and the mandible molars, produced using two technologies: Selective Laser Melting (SLM) and CAD/CAM milling. Crown structures were evaluated on the basis of examinations of the microstructure and surface layer of the chamfers, micromechanical parameters in axial sections perpendicular to the dental arches, and the accuracy of mapping the internal shape in sections with horizontal planes perpendicular to the axis of the abutment tooth. The results of this work can be used in a clinical setting. They allow the evaluation of what is the impact of the technology of producing the supporting substructure on the structure of the prosthetic crown. The strength requirements in both technologies are met, while the higher value of the microhardness of the titanium SLM substructure, compared to the milled one, increases the stiffness of the structure under conditions of biomechanical excitation. The errors in mapping the internal shape of the crowns are comparable and slightly higher during sintering.

ANALYZING THE USE OF DOUBLE NEGATIVES IN THE LYRICS OF 15 ENGLISH SONGS

English has a lot of grammar elements that are very important to note in order to be used appropriately. One of the easiest ways for English learners to learn English grammar is through the song. The song is very often used as a source of learning English because it has meaningful lyrics and interesting tones. Many of the songs in English do not follow proper grammar. This is created by the songwriter so that the rhyme produced is in accordance with the aesthetic requirements of the song. When the error is not corrected, the error will occur repeatedly both spoken and written English. This study aims to analyze the use of double negatives found in the lyrics of 15 English songs. The use of double negative in proper grammar is an important element of the effective source in learning English. The methods of this study are first analyzing the use of double negatives in the 15 songs lyrics and second classifying the types of double negatives that have been determined based on their criteria. The finding shows there were 15 English songs contain lyrics with double negatives. There are fifteen songs from fifteen popular singers i.e. Adele, Sia, Galantis, Doja Cat, Drake, Cadmium ft. Rosendale, Rae Sremmurd, CHIC, Bruno Mars, Marvin Gaye, Queen, Rihanna, Pink Floyd, Elvis Presley, and Eddie & The Hot Rods.

AI-based Product Quality Controlling in an Anodizing Process

Product quality is a crucial factor of customer satisfaction and thus directly influences the competitiveness of a company. In manufacturing companies the quality of production processes obviously has significant impact on product quality. Therefore, establishing automated quality control offers considerable leverage for improving processes without necessarily increasing work efforts and costs. In this paper an artificial intelligence based pattern recognition method for increasing the output of an anodising process for aluminium parts is discussed. In the use case presented here, customers have high aesthetic requirements regarding the products which are used in an expensive market segment with only limited fault tolerance. Preparation of the product parts before going through the anodising process is a manual, tedious, and error-prone task that nevertheless requires highest precision. Small deviations can lead to quality problems causing rejections and enforcing repetitions in production. We discuss the application of visual image processing with an artificial intelligence algorithm integrated into the information system of the company to monitor the process and prevent human errors. Results show that our approach reaches high accuracy and can potentially improve delivery reliability with respect to time and quantity by reducing cost-intensive manufacturing errors.

Hand-Held Laser Welding of AISI301LN for components with aesthetic requirements: Toward the integration of machine and human intelligence

The use of Hand-Held Laser Welding (HHLW) systems in the industry has been rapidly growing in recent years as an alternative solution to conventional manual arc-based welding systems. The decreasing cost of fiber laser sources and optics has been a driving factor in enabling a wider use of HHLW systems, beyond the established advantages of laser technology with respect to arc-based systems. While the industrial use of HHLW increases, the subject matter has been studied sparingly in the scientific literature. Due to the intrinsic flexibility of the technology, HHLW systems are highly appealing for joining relatively low thickness metals (≤2 mm) in autogenous configuration in sectors where production lots present low batch and high variability. However, a critical aspect of HHLW is correlated to the operator skill, where welding velocities can vary within and between the welds affecting both their aesthetic and mechanical properties. Hence, the development of combined digital and physical approaches to support manual operations may be highly beneficial. The current study presents an open laboratory HHLW system designed for process development purposes. Beyond conventional manual welding operations, the welding torch could be arranged in different configurations. The system could be combined with a linear axis (enabling welding with stable velocity and inclination) or manually with the aid of a newly developed roller device designed to provide constant speed and inclination. First, the process was benchmarked by joining in butt weld configuration 2 mm thick AISI301LN stainless steel sheets with the linear axis. Successively, four operators with different levels of training (rookie and professional) realized welds with the system in hand-held configuration and with the mechanical roller. The weld width variability was assessed as a direct indicator for aesthetic compliance while tensile tests were allowed to determine the mechanical properties of the joint obtained with different configurations.

Design Framework for Selection of Grid Topology and Rectangular Cross-Section Size of Elastic Timber Gridshells Using Genetic Optimisation

This work presents a design framework for the selection of the topology and cross-section size of elastic timber gridshells, taking as constraints the shape of the structure and the maximum value of bending stress that can be reached in a given area of the gridshell. For this purpose, a parametric design environment and a genetic optimisation algorithm are used, which provides a set of solutions (optimal and near-optimal) that can be examined by the designer before adopting the final solution. The construction of the parametric mesh model is based on a geometric approach using an original adaptation of the Compass Method by developing two algorithms. The first one plots geodesic curves on a surface given a starting point and a direction. The second algorithm adapts the accuracy of the Compass Method to the local curvature of the surface, substantially minimising the computation time. The results show that the optimisation process succeeds in significantly reducing the initial bending stresses and offers an interesting solution space, consisting of a set of solutions with sufficiently diverse topologies and cross-section sizes, from which the final solution can be chosen by the Decision Maker, even according to additional non-programmed structural or aesthetic requirements. The design framework has been successfully applied and verified in the design of the PEMADE gridshell, an innovative elastic timber gridshell recently realised by the authors. Finally, the most relevant details of its construction process carried out to ensure the exact position of the timber laths are presented.

Innovative methods of restoration by bac-teria, which secrete calcium, overgrowing microcracks

Innovative building materials are considered, allowing the use of new design solutions and the construction of durable structures that meet technical requirements and aesthetic requirements. The main properties, characteristics, objects and methods of application of hydraulic concrete and self-healing concrete are described. Self–healing concrete is a new stage in the development of building materials. The new self-healing concrete differs from classical recipes by adding fungi and bacterial spores to the composition, which can survive in alkaline conditions and give new properties to the building material. From the analysis of literary sources, we came to the conclusion that the long-term operation of various hydraulic structures is affected by water and the environment. All these factors lead to a decrease in the structural strength of hydraulic structures. A new self-healing material is needed in places where the production of minor repairs and regular inspection of the condition of structures is impossible: underground construction; underwater construction; high-rise buildings; bridge-type transport structures. Another advantage of new generation building materials is the possibility of budget savings, since there is no need for constant minor repairs of structures. The purpose of this work is the research and development of technology for the production of self-healing concrete modified with a micro-biological additive. In accordance with the goal, we analyzed the physical and mechanical properties of concrete and other cement composites, ways to improve them, studied damages and defects that reduce the durability of reinforced concrete structures, the process of structure formation, as well as ways to repair and restore them. Based on the analysis, a technology for creating industrial-scale concrete modified with a microbiological additive and self-healing structures is proposed. This area of research is very promising; the potential profit from the use of such concretes in hydraulic structures is huge.

Measuring the circularity potential of recycled LDPE based on quantity and quality conservation - a functional requirement matrix approach

The Plastics Strategy passed by the European Union aims to ensure the reuse of ten million tons of recycled plastics in products by 2025. Discussions on how to achieve this target are usually mass-driven focusing on recycling quotas but neglecting quality targets. However, the circular economy aims to preserve resources at their highest possible value focusing on both mass and quality conservation, to close material loops in the long term. Therefore, changes in physical properties of recycled plastics compared to virgin plastics should be addressed, but measuring quality is a complex task. This article introduces a functional requirement matrix approach to assess mass and quality conservation using an indicator called circularity potential based on physical properties. The indicator is demonstrated in a case study on a non-food pouch made of low-density polyethylene (LDPE). Two samples from mechanical and dissolution recycling were examined in a laboratory and compared to virgin LDPE. We built on existing studies, but further introduced thermal and aesthetic requirements as well as established weighting and compliance parameters to address the complexity of quality conservation. The exemplary case study shows a circularity potential of 49% for recycled LDPE from dissolution recycling and 30% for mechanically recycled LDPE Mass and quality conservation are higher for dissolution than for mechanical recycling, but also rely on different waste streams that offer future research need. Further sensitivity analysis demonstrated the significance of weighting and compliance parameters. The provided approach is configurable for specific product applications and applicable in the context of life cycle assessments.

ANALYSIS OF SHIRT FABRICS FROM A MIXTURE OF LOCAL RAW MATERIALS

Nowadays, if the pole component is obtained due to the mixing of fibres in the technological process of spinning, the production of textiles that meet the high aesthetic and hygienic operational requirements and world demand has increased significantly. In the article, a comparative study of theoretical and experimental methods in the analysis of tissue structure and physical-mechanical properties, theoretical justification of the importance of thread parameters, research of ways to increase the hygienic properties of the tissue in the production of shirt fabrics, silk and the development of a new type of cotton thread tissue was comparatively analyzed.

Extracapsular dissection and minimally invasive procedures of primary benign parotid tumours: Case series

Extracapsular dissection is an old technique use for the removal of benign parotid tumours, which is not generally chosen as the first treatment option due to the association of recurrences in the past but is currently considered again accord to the aesthetic requirements of the patients. The general trend in the last decade is to return to minimally invasive procedures for this type of lesions, which are mainly conditioned by the pleomorphic adenoma and its positive margins in its capsule. By this, the purpose of this case series study is to analyze those patients diagnosed with benign parotid tumors and treated by extracapsular dissection in a tertiary hospital in Chile between 2018-2020.

Dimensional Solution of Wooden Chairs for the Adult Bariatric Population of Slovakia: Observational Study

Chairs are furniture that are intended for direct contact with people, they are heavily loaded by forces, and they must meet a number of criteria, such as ergonomics, safety, economic sustainability, feasibility, and aesthetic requirements. This study aimed to define the dimensional solution of wooden chairs for the adult bariatric subpopulation of Slovakia. Long-term observations of the changes in the anthropometric dimensions of the population (secular trend) allowed the determination of the body height of 95% of the adult male population. Based on the analysis of the bariatric population of Slovakia, regardless of gender, the values of weight, waist and hip circumference, and seat width were defined in the years 2020 to 2022. The increased population’s average body mass makes the researched topic highly relevant and necessary. Based on the obtained data, new dimensions of wooden chairs for bariatric respondents were designed: seat height 49 cm, seat width 67 cm, and seat depth 47 cm. Adjusting the dimensions of wooden chairs makes it possible to ensure comfortable sitting and standing for bariatric respondents and prevents many health problems. For furniture manufacturers, the introduction of the production of wooden furniture for bariatric respondents can be a competitive market advantage.

Preparation and analysis of multi-scale colored superhydrophobic coatings with excellent mechanical strength and self-cleaning properties

Since most commercial building coatings are porous in structures, the building facades are easily to be damaged by acid rain, harmful particles in the air, and drastic temperature changes. Superhydrophobic coatings have great potential to solve these problems on account of their excellent water-repellent and self-cleaning properties. Previous studies have focused on improving the durability of superhydrophobic coatings. However, a colorful superhydrophobic coating that meets both durability and aesthetic requirements is rarely reported. Therefore, we developed a self-cleaning and colorful superhydrophobic (SCS) coating consisting of silica nanoparticles (nano-SiO2 particles), quartz sands, silicone sealant, and latex paint. The thickness of the SCS coating could be adjusted from 0.05 to 0.3 mm, the average contact angle (CA) was 155.09 ± 1.9° and the average sliding angle (SA) was 3.6 ± 0.2°. The SCS coating could be still retained superhydrophobicity after 350 cycles of mechanical abrasion under the weight of 200 g and 100 cycles of tape peeling. It was shown that there were no evident changes after immersing in chemical solutions and irradiating under ultraviolet (UV) light in the aging test. The mechanism of the excellent performance was studied by scanning electron microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). The facile fabricated SCS coating with excellent mechanical stability, anti-corrosion, and UV-resistance performance is expected to apply in the building engineering field for keeping clean and waterproof.

AESTHETIC VALUE OF SOILS

The article highlights the problem of interaction between society and nature (in particular, soils) through the prism of the aesthetics of world perception as the highest manifestation of valuable awareness of objective reality. The presented results of the research prove that the aesthetic thinking and perception of the role of soils in the life of society was and remains an important element of knowledge and development of the concept of beauty not only in literary, but also in scientific circles.
 Soils are one of the most important aesthetic values among natural objects and are an integral part of the landscape. It has its own location, like other geographical bodies. Namely the specific natural environment in which it functions. It is important to distinguish between different manifestations of the quality when you consider the beauty of the agricultural landscape not as a general aesthetic category, but as a quality of the landscape. A human is not only physically dependent on his environment, but also emotionally. The quality of human life depends significantly on what aesthetic feelings the landscape evokes in a person, how pleasant it is to be in it, and how much a person likes the landscape. It must be noted that the aesthetic image of the soils is an integral aspect of the development of society with deep agricultural traditions.
 The aesthetic value of soils is not limited to the spiritual sphere of human activity. It largely affects material processes. Therefore, the preservation and further restoration of the natural environment can only be a product of purposeful, scientifically organized activities of society. It is important to develop the principles of organization and use of natural resources taking into account aesthetic requirements. According to this approach a lot depends on the level and form of a human's aesthetic attitude towards nature, and especially the soils.
 The analysis of applied aspects of preserving the aesthetic value of soils showed that soil fulfills the role of utility, morality and beauty for humans. The aesthetic value of soils is an important factor in the life of humanity in connection with the development of scientific achievements, as it is one of the most well-known forms of social consciousness. Nowadays, the aesthetic potential of soils is distinguished by an insufficient level of study, which to a certain extent does not allow a full assessment of human attitude to the soils and the evolution of value attitude in the process of historical and cultural changes.
 The purpose of the study is to substantiate the aesthetic aspects of the interaction of society and nature, to reveal the problems of harmony of purposeful regulation of the processes of human-soil interaction. The work uses comparative and historical analysis of literary sources, materials of poetic and artistic works, works of thinkers of ancient Rome and Greece, works of Ukrainian and foreign soil scientists. For all the versatility and multifaceted research on the interaction of society and nature, related to the spiritual, aesthetic aspects of this issue, often go out of sight of the researcher, generating a certain homogeneity of conclusions. Substantiation of the idea of preserving the aesthetic integrity of nature as a necessary factor in human life, as well as the study of the most common patterns of industrial and creative activities of people to transform the natural world in modern conditions is important. Studies of the problem of aesthetic organization of the environment show that activities in this area are characterized by the transition from random tasks of aesthetic design of individual natural objects to solving problems of aesthetic design of landscapes affected by human production, especially agricultural. Soils are one of the most important aesthetic factors among natural objects, especially chornozems. They, like other geographical bodies, have their own location, form chornozem space, have a special habit (appearance, constitution, posture), color, structure, etc. Based on the role and importance of chornozem in nature and social life, its aesthetic value, humanity appreciates this natural phenomenon. The practical value of the obtained results is that it allows to clarify the role of aesthetic perception of the image of the soil by man to determine its value and to establish harmonious relationships in everyday life.
 Key words: soils, aesthetic value, natural phenomenon, soil ideal.

Management of Peri-implant Soft Tissue Emergence Profile and Accurate Transfer Technique

Objectives: Today, the focus of implant dentistry has moved from osseointegration to meeting aesthetic prospects. Aesthetic demands may be satisfied with a suitable emergence profile created in peri-implant healthy soft tissue, this could be a challenging and time-consuming stage. In this article, the one-step formation of a peri-implant emergence profile and an indirect impression technique that preserves the obtained soft-tissue form are described through cases. Methods: In the cases with missing teeth in aesthetic areas, all detailed consent was obtained from the patients. After the placement of the implants, individual temporary crowns were placed immediately and were not removed until the osseointegration was completed in order to create a peri-implant soft tissue profile that would meet the aesthetic and biological requirements. After the healing period, impressions were taken using custom-prepared impression posts by adding resin material to support the formed mucosa. Thus, the soft tissue profiles could be reflected in the models, and the emergence profiles of temporary crowns could be transferred to the final restorations. Results: The aesthetic and biological demands were practically satisfied at the expected level by following the present method. Conclusion: It is possible to manage the soft tissue around the implant in one step and transfer it to the impression easily. An ideal soft-tissue form that meets the aesthetic and biological demands can be obtained, and transferred to the permanent prosthesis, while time saved with this effortless clinical technique.

ANNA (ASJA) LĀCIS AT THE CROSSROADS OF CULTURES AND IDEOLOGIES

The article explores the course of formation of the positions of Asja Lācis’s theatre aesthetics in the early period of her activity, mainly in Riga during the 1920s. The article takes a chronological look at the first theatre impressions of German and Latvian theatres in Riga. Special attention is paid to Asja Lācis’s change of aesthetic views under the influence of the Russian avant-garde. In contrast to the exuberance of Hedda Gabler and the existential loneliness in Ibsen’s psychological theatre, the new Russian avant-garde theatrical search stressed the biomechanical conception and the role of the actor as a player in a theatre company. The key position in Asja Lācis’s personal work of directing in Riga amateur theatre of the leftist trade unions was the aesthetic requirements of the proletarian cult and the theatre of October. She tried to create a radical avant-garde theatre and expressed her aesthetic views in a number of articles in the Latvian leftist press. Anna Lācis’s experiments in Oryol and the Riga theatres, which were based on her acquired experience of the Russian avant-garde, served as a catalyst for her further cooperation with Walter Benjamin and Bertolt Brecht; it also influenced the development of different contemporary theatre trends.

Energy Dissipation Enhanced by Multiple Hinges in Bridge Piers with CFST Y-Shaped Fuses

Concrete-filled steel tubular Y-shaped (CFST-Y) piers are good candidates for meeting the structural and aesthetic requirements of bridges. By using the theoretical and nonlinear static (pushover) analyses, the seismic performances of three types of CFST-Y piers were evaluated at different seismic hazard levels. The theoretical formulas were first proposed to estimate the lateral stiffnesses for piers with different pier–deck connections. Then, the structural ductility with the development of plastic hinges in piers was investigated based on the pushover analyses. The results demonstrate that the structural dimensions, deck mass, shear limit, and stiffness of bearings can remarkably affect the formation of hinges and thereby lead to different energy dissipation patterns to achieve the expected performance in piers. The findings suggest an economic design strategy of piers, using CFST-Y members as energy dissipation fuses with multiple hinges, to achieve low-level seismic performance cost-effectively.

Optimal Vibration Control Design of Antenna Mast on Super High-Rising Structures Against Multi-Hazards of Earthquake and Wind

Antenna mast structures are usually set on top of modern super high-rising structures to meet the requirements of communication and aesthetics, and such buildings are highly sensitive to horizontal loads that can greatly increase the acceleration and displacement responses during their life-cycles owing to the inherent high flexibility and low damping. As a result, the antenna masts with small mass and stiffness may suffer serious whiplash effect under the earthquake or wind excitations. In this paper, a multi-hazard protective system with hybrid isolated and energy-dissipated devices of isolation bearing, viscous damper and mild steel damper is presented for the typical inserted antenna mast structures on super high-rising structures. To determine the optimum parameters of the hybrid system that maximize the structural control efficiency under a single hazard of earthquake or wind load, as well as the coupled conditions of these two hazards, an optimization method based on the genetic algorithm is developed for the presented hybrid control system to resist various hazard scenarios. Objective functions are further proposed to penalize the accelerations and relative displacements at the top of the antenna mast structure. Taking a super-tall TV tower as an example, the OpenSeesPy platform is employed to establish the finite element (FE) model. The numerical results show that the optimization scheme for the hybrid energy-dissipated antenna mast system under a single hazard is not suitable for the other hazard condition, while the optimized results for the multi-hazard condition can give consideration to the effects of both earthquake and wind. Moreover, the sensitive analysis is performed to investigate the effects of each parameter of the hybrid system on the objective functions. It can be concluded that the proposed hybrid system performs well under earthquake, wind and coupled multi-hazards, which is of practical significance for the vibration control of antenna masts on super high-rising structures.

RETRACTED: A hybrid model to develop aesthetic product design of customer satisfaction

With the improvement of manufacturing technology, the performance gap between different products has been gradually narrowed, and customers pay more and more attention to psychological feelings and aesthetic experiences in the process of purchasing and using products. Therefore, the main purpose of this research is to construct a hybrid model of aesthetic product design to develop customer satisfaction. Firstly, seven customer aesthetic needs are summarized by discussing the literature. The Kansei evaluation and customer satisfaction evaluation are investigated using Likert-scale, and the neural network is repeatedly trained and tested to obtain the weight of each aesthetic requirement. Secondly, the morphological analysis method is used to obtain the product morphological deconstruction table, and the entropy method is used to calculate the initial weights of the engineering characteristics (ECs). Finally, quality function development (QFD) is used as the platform to construct the relationship matrix between customer aesthetic needs and product ECs. Grey relationship analysis is used to calculate the final weight of ECs and obtain the priority of ECs. The research takes the side view of a car as a case. The results show that the best product form combination can provide a reference for designers and effectively improve the aesthetic experience and customer satisfaction of the product.

Requirements to Design Sustainable Functional Clothing for Low-Risk Security in National Projects

Egypt is witnessing national development in all sectors through several national projects "Egyptian Vision 2030". National projects aim to invest the available resources, provide job opportunities, and attract investment. They also consider the dimensions of sustainability, which represent unprecedented, civilized development. It is noted that many private organizations such as schools and commercial malls rely on the use of private security to guard these organizations, which is low-risk private security. Studies proved that wearing clothes that are inappropriate for the job requirements of low-risk security, especially in hot and humid climates (such as the environmental and climatic conditions in Egypt) causes great physiological pressures on workers and leads to cognitive impairment and a feeling of fatigue and discomfort, which results in a decrease in the worker's job performance, especially when increasing the working hours. In this context, the research aims to study the requirements to design sustainable functional clothing for low-risk security in national projects, considering the Egyptian tendency in achieving sustainability standards in national projects by proposing designs for security clothing for low-risk organizations in national projects. A survey was conducted through personal interviews that included 26 low-risk private security personnel in private organizations such as schools and commercial malls, to determine the functional and aesthetic requirements to reach the highest job performance. Based on the results of the survey, a set of designs for low-risk private security were proposed to be in line with the Egyptian environment and climatic conditions considering the dimensions of sustainability. A questionnaire was used for specialists containing 17 phrases divided into four axes to measure the suitability of the proposed designs to the required performance by achieving the axes and objectives of the research. (SPSS) program version 27 was used to analyze the statistical results and arrange the proposed designs according to the achievement of the research axes and objectives. The order of designs according to the opinions of specialists was the seventh, then the fifth, then the third, then the first, then the second, then the fourth, then the eighth, then the sixth design. By asking specialists about the best color combinations that suit the chosen designs for functional clothing to low-risk private security, the preferences were for the color group that expressed light blue for the shirt and navy for both the jacket and pants. Based on the statistical analysis of the results of the specialists' responses, the best designs that obtained the highest results in achieving the research axes and objectives were implemented, and the color group that received the highest acceptance rate among specialists was used.