428 results about "Skin structure" patented technology

An apparatus for delivering a bioactive material to a subterranean layer of a skin architecture is provided that includes a head including one or more needles that are operable to penetrate a stratum corneum of a skin. A bioactive material is disposed on one or more of the needles, whereby movement of the head operates to pick up the bioactive material and to deliver a portion of the bioactive material to a selected location, the selected location being a dermis, or an epidermis, or both the dermis and the epidermis. In more particular embodiments, the bioactive material is a macromolecule substance that is part of a group of substances, the group consisting of a protein, a vitamin, a gene, a growth agent, a drug, and a peptide. The needles create an injury that triggers collagen production from one or more fibroblasts in the skin.

The invention relates to a method and a process of determining individual skin structure and function at a point in time for the purpose of determining and formulating skin care products that remedy the deficiencies observed in the skin. Objective and repeatable dermal biometric instrumentation techniques can be used to measure skin moisture content, sebum content, firmness and elasticity properties, skin thickness, transepidermal water loss, skin pH and to perform a photo analysis of the face with UV and visible light. By customizing the skin care products, the individually added active ingredients can be controlled, the diluents can be modified, dermal penetration rates can be controlled, the surfactant systems can be adjusted, and the stability of the product can be controlled. To prevent the loss of active materials in the product, the skin care product is manufactured for an individual consumer and is only sold in a quantity of a three months supply. Additionally, a variety of ingredients can be combined that a mass produced product cannot contain due to stability/compatibility issues. This invention overcomes the limitations in formulating skin products for the mass market by providing a product designed with objective biometric data and created for the specific clinical condition of an individual's skin.

A leading edge structure for an aerodynamic surface includes a support structure made of fiber-reinforced synthetic material and a skin structure made of metal mounted on the support structure. The support structure includes an inner laminate, an outer laminate, and longitudinally extending tubes and channels arranged between the inner and outer laminates, as well as a synthetic foam filler material in the spaces between the tubes, channels, and laminates. The skin structure includes an outer skin having perforations, especially in the form of suction holes, an inner skin, and spacer members interconnected therebetween so as to form a substantially form-stable metal skin structure. Respective holes pass through the inner skin, the outer laminate, and the walls of the tubes and channels in order to communicate the suction hole perforations of the outer skin with the interior spaces within the tubes and channels. The skin structure is adhesively bonded to the support structure. In a method for making the leading edge structure, the prefabricated components of the support structure are laid up, molded and cured in a positive mold, the prefabricated components of the skin structure are formed and soldered together on a positive mold, and then the skin structure is adhesively bonded onto the support structure.

A method of manufacturing a turbo-machine impeller, which includes a hub and a plurality of blades, using powder material in an additive-manufacturing process. The method includes: applying energy to the powder material by way of a high energy source, and solidifying the powder material. At least one bulky portion of the hub is irradiated such that the powder material solidifies in a lattice structure surrounded by an outer solid skin structure enclosing the lattice structure.

A system and method are provided for refrigerating at least one enclosure, such as an aircraft galley cart. The system includes at least one air-to-liquid heat exchanger, an eutectic thermal battery, a liquid-to-direct heat exchanger and at least one liquid-to-direct heat pump. The air-to-liquid heat exchangers are in thermal communication with the interiors of the enclosures. The thermal battery is in fluid communication with the air-to-liquid heat exchangers via a first coolant loop. The liquid-to-direct heat exchanger and the liquid-to-direct heat pumps are in fluid communication with the eutectic thermal battery via a second coolant loop, and in thermal communication with a cold heat sink, such as an aircraft fuselage skin structure. The system can controllably operate in direct passive, indirect passive, direct active and/or an indirect active modes whereby a coolant can selectively flow in the first and/or second coolant loops to thereby refrigerate the enclosures.

An electrical power generation system incorporates thermoelectric devices (TE Devices) for electrical power generation adjacent a flow path heat exchanger (HEX) adjacent to a vehicle flowpath structure such as a scramjet flow path to take advantage of the waste heat, high thermal gradients, and available, unused volume. A thermally conductive material communicates thermal energy from a vehicle external skin structure to the TE Device while a thermally conductive compliant material allows the TE Device to “float” with minimal mechanical stress.

The present invention relates to a skin management system, and in particular to a total skin management system and a total skin management method using the same which are capable of checking a state of skin and comprehensively managing a skin based on a type of skin. In addition, the present invention relates to a total skin management system and a total skin management method using the same which are capable of checking a state of skin and classifying the skin into numerous types by integrating and controlling the functions of a skin check, far infrared ray massage, ozone massage, low frequency massage, low frequency vibration massage and ultrasonic wave massage and comprehensively managing the functions of a skin cleansing, skin management, skin nutrition and skin elastic force increase through a certain skin exercise corresponding to a structure of skin based on a skin cell activity and metabolism in a proper combination with the functions of an infrared ray massage, ozone massage, low frequency wave massage, low frequency vibration massage and ultrasonic wave massage based on the checked type of skin.

The invention discloses a skin for morphing wings, belonging to the technical field of design of morphing aircrafts. The skin for the morphing wings is made from fibre reinforced composites, and the cross section of the skin is in an isosceles trapezoid ripple structure. The invention also carries out analysis aiming at the chordwise and spanwise equivalent elastic modulus and flexural modulus ofthe skin structure with isosceles trapezoid ripples, provides a corresponding mathematical model and can further optimize the skin structure according to the mathematical model. The invention meets the requirements of the skin of the morphing wings of the morphing aircrafts for large deformation aerodynamic load bearing, can realize the design optimization of the skin structure under different load operating conditions according to the mathematical analysis model of the equivalent elastic modulus and the flexural modulus in two different directions of the skin structure, also has structure health monitoring and self-adapting deformation capability and can realize optimal aerodynamic characteristics by controlling the shape and the vibration of the skin.

The subject invention relates to a skin cream that can be used to moisturize and rejuvenate skin that has been damaged by exposure to sunlight or which has simply been affected over the years by intrinsic aging. It can also be used to slow the rate of photo-induced aging to maintain beautiful skin tone and texture over the years. It inhibits the formation of wrinkles and in some cases reduces the depth of existing wrinkles or eliminates them entirely. In some cases, the skin cream of this invention also lightens age spots and other types of blemishes associated with aging. This invention is based upon the discovery that alkyl lactates, such as ethyl lactate, can be used to improve the penetration of active ingredients in skin care formulations deep into lower layers of the skin tissue. For instance, ethyl lactate can be included in aqueous based skin creams, such as oil in water emulsions, to deliver active ingredients deep into the skin structure. Ethyl lactate is particularly desirable for utilization in conjunction with ascorbic acid (Vitamin C) containing skin cream formulations. This is beneficial because the overall effectiveness of skin creams that utilize ascorbic acid as an active ingredient is contingent upon delivery of the ascorbic acid through the outer layers of the stratum corneum and viable epidermis and into the dermis layer of the skin structure. The present invention more specifically discloses a topical formulation comprising about 1 weight percent to about 20 weight percent ascorbic acid, about 1 weight percent to about 10 weight percent of an amino acid selected from the group consisting of phenylalanine and tyrosine, about 0.5 weight percent to about 5 weight percent of a non-toxic zinc salt, about 0.01 weight percent to about 20 weight percent of an alkyl lactate, wherein the alkyl group in the alkyl lactate contains from 2 to about 12 carbon atoms, and a pharmaceutically acceptable carrier.

An apparatus for transdermal fluid delivery includes a handle and a tip, having a skin applying surface, being driven to move by a driving unit. A fluid delivery structure has an aperture formed at the skin applying surface and a vacuum entry port. An abrading structure, an electrode structure, and a micro-needling structure are selectively provided at the skin applying surface with the fluid delivery structure to provide multiple functions of the tip. A flow of fluid is delivered onto the skin applying surface through the fluid delivery structure to interact with the abrading elements and the electrodes before the fluid is returned and collected, so that three different skin treatments of abrasive peeling, electrical stimulation, and liquid infusion are achieved in one single structure for improving a skin structure.

The invention discloses OCT-based in-situ three-dimensional printing skin repairing equipment and an implementation method thereof. The implementation method comprises the following steps: scanning a skin injury region by adopting an OCT technology to acquire a high-resolution three-dimensional skin injury OCT image; carrying out three-dimensional bionic structural design and modeling on the skin injury part based on the OCT image so as to ensure the reconstruction requirements of skin repair to layered interfaces and vascular networks in tissues; and then, transmitting the modeled skin injury repair model data to a 3D biological printer to carry out model layering and printing, thereby implementing quick, accurate and in-situ repair on the injured part. The OCT-based in-situ three-dimensional printing skin repairing equipment has the advantages of no contact, no injury and real-time imaging, meets the requirement of skin in-situ printing on high-resolution imaging of internal micro-structures, and can acquire distribution and density information of blood vessels in the skin corium layer so as to be convenient for constructing a three-dimensional model closer to real skin structures and functions.

The invention discloses a car body structure of light weight railway vehicle. The car body structure of light weight railway vehicle comprises a car body upper part bearing girder composed of two top cover long girders and two top cover side girders, two bottom shelf side girders as car body lower part bearing girder, framework structure composed by connecting the guest room door stand column, side wall support girder and cab door stand column to the car body upper part bearing girder and the car body lower part bearing girder; the framework structure is fixedly connected to the bottom shelf end structure, cab framework, end wall framework for forming the framework structure; the stressed-skin structure is composed of the arc top cover, top cover isolated wall, air conditioning baseboard, pantograph baseboard, bottom shelf baseboard and side wall plate between two top cover long girders; the top cover side girder and the bottom shelf side girder are fixedly connected through the integrated side wall support girder; the air conditioning baseboard and the pantograph baseboard are formed on the same platform at the same height; the bottom shelf side girder has the structure for hooking under the car. The weight of the vehicle body can be reduced for 1/10 while the structure strength is guaranteed.

The outer skin (100) of an aerodynamic body (40) has perforations (200) arranged in particular patterns in respective spanwise extending groups or bundles (250). Each perforation is preferably a micro-slot with a length of 100 to 3000 μm and a width of 50 to 250 μm. Air is sucked through the micro-slots from the boundary layer flowing over the outer skin, to achieve boundary layer control. In each bundle, the pattern, size, orientation, and other parameters of the micro-slots are designed to achieve mutual destructive interference of flow disturbances arising due to the suction, to minimize the excitation of flow instabilities in the boundary layer. Particularly, the spatial spectrum of the perforation pattern of a given bundle is essentially absent of significant energy at predetermined wavelengths of predetermined flow instabilities that otherwise appear in the boundary layer air flow. The aerodynamic body further includes supporting ribs (300) extending parallel to the perforation bundles (250) and a perforated inner plate (400) providing a throttling control of the suction flow through groups of the bundles.

The invention discloses a high-sensitivity flexible piezoresistive sensor based on an MXene bionic skin structure. The high-sensitivity flexible piezoresistive sensor comprises a flexible interdigitalelectrode layer, an MXene-based silica gel bionic layer and a packaging layer; the MXene-based silica gel bionic layer is prepared by obtaining a film with a bionic skin structure through silica gelimpression abrasive paper and then coating the bionic film with the film; the flexible interdigital electrode layer is obtained through ink-jet printing and magnetron sputtering; the MXene-based silica gel bionic layer is in direct contact with an electrode area to form a loop; and the packaging material is preferably a polyethylene film. The flexible pressure-sensitive sensor provided by the invention has extremely high sensitivity, low detection limit, short response time and high stability, and shows great application potential in practical application of electronic skin, wearable electronic devices and the like. The sensor solves the problems that an existing MXene-based piezoresistive sensor is complex in preparation process and difficult to have high sensitivity and stability at thesame time.

The invention relates to antibacterial fiber having a core-skin structure, wherein a skin layer is a low-melting point polymer, a core layer is a high-melting point polymer, the core layer and the skin layer are composited through a two-component spinneret assembly, the low melting point polymer body of the skin layer contains a graphene antibacterial composition, the graphene antibacterial composition takes modified porous graphene as a skeletal material, the graphene antibacterial composition is loaded at an aperture or in a surface layer of the modified porous graphene, the graphene antibacterial composition comprises the following components in parts by mass: 20-70% of the modified porous graphene, 20-80% of an antibacterial plant extract, and 1-5% of organic rare earth salt. The antibacterial fiber is subjected to metering, carding and thermoforming composite to form an antibacterial non-woven cloth used for a surface layer of a disposable moisture-absorption product. The antibacterial fiber and the antibacterial non-woven cloth has no stimulation on skin of human body, and have excellent antibacterial property, the antibacterial property is slowly released and stable, and thepersistence of washing resistance and effects of bacteriostasis and deodorizing can be guaranteed.

The invention provides an integrated skin capable of achieving heat shielding, heat insulation and stealth and a preparation method of the integrated skin. The integrated skin comprises a wave-transparent ceramic-based composite material, an electrical loss-type wave-absorbing heat-insulating integrated layer, a transition layer, an organic wave-absorbing layer, and a metal structural layer from the outside in, wherein the functional layers are connected through ceramic-based composite bolt members so as to form the skin structure. The skin has the advantages that the stealth performance, heatshielding and heat insulation performance and structural load-carrying capacity are designed comprehensively and optimally, insufficient broadband wave-absorbing performance, low structural strengthand other problems of stealth structural materials are solved effectively under high temperature conditions, and finally the design of the integrated skin capable of achieving the stealth function isachieved; the broadband stealth performance is achieved through the design of a multi-layer wave-absorbing periodic structure or a resistive film, and the electrical loss-type high temperature-resistant wave-absorbing structure with an heat insulation function is designed on the outer layer of the integrated skin capable of achieving heat shielding, heat insulation and stealth, so that heat insulation, cooling and absorption of high-frequency electromagnetic waves are achieved; and the working temperature of an inner-layer magnetic wave-absorbing material is made lower than the Curie temperature of the inner-layer magnetic wave-absorbing material, and finally the integrated skin capable of achieving heat shielding, heat insulation and stealth is obtained.

The present invention provides non-invasive, in vivo, DISC-type methods of evaluating structural changes in skin due to a variety of exogenous or endogenous factors. It is possible to develop quantitative and qualitative characterizations of skin. For example, the skin may be characterized based on its structural age rather than its chronological age. Based on the structural age and type of an individual's skin, cosmetic, dermatologic, medicinal or manipulative treatment may be customized. The method is based, in part, on quantification of discontinuities that arise in the skin during normal facial expression. The methods provide for evaluating changes in human skin response that occur over a short term (one day) or long term (one or more years). The methods provide for evaluating the skin's response to cosmetic, dermatologic or medicinal treatment or to any other factor alleged to affect the skin.

A porosity reference standard for ultrasonic inspection of composite materials includes a right prism manufactured from a solid isotropic material and a porosity created within the right prism. The porosity reference standard may be a glass block that encloses a plurality of simulated voids created through laser etching. The porosity reference standard may be manufactured by using a sub surface laser engraving process. By creating a porosity within the glass block, the level of the porosity can be exactly determined and is spatially constant over a desired area within the glass block. The laser-etched porosity reference standard is suitable for, but not limited to, ultrasonic porosity inspection of composite laminate parts, such as wings, empennage and fuselage skins, sub-skin structures, frames stringer, and shear ties, used in the aircraft airframe industry, both commercial and defense.

To obtain a wide passenger compartment space, the thickness of a heat insulating acoustical layer is reduced, and for this purpose, a comfortable in-car environment is obtained by using a vacuum insulating panel which combines high heat insulating performance and sound insulating performance. A heat insulating acoustical layer (20) is formed on one surface of a lightweight alloy structure (10) of double skin construction by using a vacuum insulating panel (21) as a middle member and sandwiching two surfaces of the panel with elastic sound absorbing materials (22, 23) made of a nonwoven fabric or a foamed body, and the heat insulating acoustical layer is covered with an interior material (24). Owing to this construction, the transmission loss of a noise which transmits from the double skin structure side is improved by the mutual actions of the elasticity of the sound absorbing material and the rigidity of the vacuum heat insulating panel.

The invention relates to a method for the virtual simulation of a sequence of video images from a sequence of video images of a moving face/head, comprising: an acquisition and initialization phase of a face/head image of the real video sequence; an evolution phase for determining specific parametric models from characteristic points extracted from said image and used as initial priming points, and for deforming said specific models for adaptation to the outlines of the features of the analyzed face, and also for detecting and analyzing the cutaneous structure of one or more regions of the face/head; and a tracking and transformation phase for modifying the characteristic features of other images in the video sequence and the colors of the cutaneous structure, said modifications being carried out according to predetermined criteria stored in at least one database and/or according to decision criteria of at least one expert system of a 0+ or 1 order.

A dual-skin structure comprises a first skin, a second skin and an intermediate structure. The intermediate structure comprises a plurality of first contact portions connected to an interior surface of the first skin, a plurality of second contact portions connected to an interior surface of the second skin and a plurality of interconnecting web portions integral to the first and second contact portions and extending between ones of the first and second contact portions to form an internal supporting structure alternating between the interior surfaces of the first and second skins.