Abstract: A bioprintable material is provided. The bioprintable material includes a hydrogel and microfilaments mixed in the hydrogel. The hydrogel includes a first collagen. The microfilament includes a second collagen. The diameter of the microfilament is ranging from 5 microns to 200 microns. The weight ratio of the microfilaments to the first collagen is ranging from 0.01:1 to 10:1.

Abstract: A machine learning system and method for optical critical dimension measurement. From a training set of spectra and references, features are extracted and subjected to regression analysis to generate predictor variables. Using feature functions, inverse feature functions, a machine-learning predictor component and masks, a machine-learning optical critical dimension explainer is generated. A wafer is analyzed by metrology tools and the machine-learning predictor component calculates a critical dimension inference from measured spectra. Theoretical spectra are then generated by the predictor component based upon a modification of the critical dimension inference. The measured spectra are compared to the theoretical spectra and the fit of the measured spectra to the theoretical spectra is evaluated for acceptance. The results of the comparison and analysis is output in human readable form.

Abstract: A method for preparing a bifunctional film, including: (a) drying a first polymer solution to form a film to form an anti-adhesion layer, and (b) drying a second polymer solution over the anti-adhesion layer to form a film to form an attachment layer. The first polymer solution includes a first hydrophobic solution and a first hydrophilic solution, and in the first polymer solution, the weight ratio of the solute of the first hydrophobic solution to the solute of the first hydrophilic solution is 1:0.01-1. Moreover, the second polymer solution is composed of a second hydrophilic solution.

Abstract: A method for preparing a bifunctional film, including: (a) drying a first polymer solution to form a film to form an anti-adhesion layer, and (b) drying a second polymer solution over the anti-adhesion layer to form a film to form an attachment layer. The first polymer solution includes a first hydrophobic solution and a first hydrophilic solution, and in the first polymer solution, the weight ratio of the solute of the first hydrophobic solution to the solute of the first hydrophilic solution is 1:0.01-1. Moreover, the second polymer solution is composed of a second hydrophilic solution.

Abstract: A method for preparing a bifunctional film, including: (a) drying a first polymer solution to form a film to form an anti-adhesion layer; and (b) drying a second polymer solution over the anti-adhesion layer to form a film to form an attachment layer. The first polymer solution includes a first hydrophobic solution and a first hydrophilic solution, and in the first polymer solution, the weight ratio of the solute of the first hydrophobic solution to the solute of the first hydrophilic solution is 1:0.01-1. Moreover, the second polymer solution consists of a second hydrophilic solution.

Abstract: A non-fibrous film of which the composition includes a collagen and a polyester polymer is provided. A content of the polyester polymer in the non-fibrous film is 1-60 wt %. Moreover, the non-fibrous film has a swelling rate of 1-200 ?m/hour or a swelling proportion per unit time of 0.1-2%/hour in an aqueous liquid.

Abstract: A bioprintable material is provided. The bioprintable material includes a hydrogel and microfilaments mixed in the hydrogel. The hydrogel includes a first collagen. The microfilament includes a second collagen. The diameter of the microfilament is ranging from 5 microns to 200 microns. The weight ratio of the microfilaments to the first collagen is ranging from 0.01:1 to 10:1.

Abstract: Systems, apparatus, and method for manufacturing are disclosed. In an aspect, the apparatus may be a cold-spray nozzle. The cold-spray nozzle may include a variable diameter convergent part. The cold-spray nozzle may also include a variable diameter divergent part. The variable diameter divergent part may form a diffuser. Additionally, The cold-spray nozzle may include a ring portion. The ring portion may couple the variable diameter convergent part and the variable diameter divergent part. Additionally, the ring portion may control the opening to the diffuser.

Abstract: Systems, apparatus, and method for manufacturing a structure are disclosed. The structure includes a first portion, a second portion, and a structural joint. The apparatus is configured to receive instructions for printing the structural joint. The instructions are based on a data model of the structural joint. The apparatus is also configured to receive the first portion and the second portion, the first portion having a first conical tip and the second portion having a second conical tip. The apparatus is further configured to receive material. Additionally, the apparatus is configured to print the structural joint based on the instructions. The printing may include spray forming the material to produce the structural joint. The structural joint connects the first portion to the second portion.

Abstract: Apparatus and methods for additively manufactured structures with augmented energy absorption properties are presented herein. Three dimensional (3D) additive manufacturing structures may be constructed with spatially dependent features to create crash components. When used in the construction of a transport vehicle, the crash components with spatially dependent additively manufactured features may enhance and augment crash energy absorption. This in turn absorbs and re-distributes more crash energy away from the vehicle's occupant(s), thereby improving the occupants' safety.

Abstract: In one example, a firewall obtains a first network packet that indicates a first mobile country code of a mobile subscriber at a first time and a first mobile network code of the mobile subscriber at the first time. The firewall obtains a second network packet that indicates a second mobile country code of the mobile subscriber at a second time and a second mobile network code of the mobile subscriber at the second time. The firewall determines whether the first mobile country code is different from the second mobile country code or the first mobile network code is different from the second mobile network code. If so, the firewall determines whether a difference between the second time and the first time is less than a threshold difference. If so, the firewall associates the second network packet with a potential security threat.

Abstract: An ophthalmic drug delivery device and a method for fabricating the same are provided. The ophthalmic drug delivery device includes a shield element and a drug release element. The shield element has a light transmittance more than or equal to 80%. The drug release element is an annular body so that the drug release element surrounds the shield element. The drug release element is neutral and includes a cross-linked neutral collagen, a first hydrophilic biodegradable polymer and a drug. The shield element is acidic and includes a cross-linked acidic collagen and a second hydrophilic biodegradable polymer.

Abstract: Apparatus and methods for additively manufactured structures with augmented energy absorption properties are presented herein. Three dimensional (3D) additive manufacturing structures may be constructed with spatially dependent features to create crash components. When used in the construction of a transport vehicle, the crash components with spatially dependent additively manufactured features may enhance and augment crash energy absorption. This in turn absorbs and re-distributes more crash energy away from the vehicle's occupant(s), thereby improving the occupants' safety.

Abstract: An ophthalmic drug delivery device and a method for fabricating the same are provided. The ophthalmic drug delivery device includes a shield element and a drug release element. The shield element has a light transmittance more than or equal to 80%. The drug release element is an annular body so that the drug release element surrounds the shield element. The drug release element is neutral and includes a cross-linked neutral collagen, a first hydrophilic biodegradable polymer and a drug. The shield element is acidic and includes a cross-linked acidic collagen and a second hydrophilic biodegradable polymer.

Abstract: In one example, a firewall obtains a first network packet that indicates a first mobile country code of a mobile subscriber at a first time and a first mobile network code of the mobile subscriber at the first time. The firewall obtains a second network packet that indicates a second mobile country code of the mobile subscriber at a second time and a second mobile network code of the mobile subscriber at the second time. The firewall determines whether the first mobile country code is different from the second mobile country code or the first mobile network code is different from the second mobile network code. If so, the firewall determines whether a difference between the second time and the first time is less than a threshold difference. If so, the firewall associates the second network packet with a potential security threat.

Abstract: A method for preparing a bifunctional film, including: (a) drying a first polymer solution to form a film to form an anti-adhesion layer; and (b) drying a second polymer solution over the anti-adhesion layer to form a film to form an attachment layer. The first polymer solution includes a first hydrophobic solution and a first hydrophilic solution, and in the first polymer solution, the weight ratio of the solute of the first hydrophobic solution to the solute of the first hydrophilic solution 1:0.01-1. Moreover, the second polymer solution consists of a second hydrophilic solution.

Abstract: Systems, apparatus, and method for forming a structure are disclosed. An apparatus for forming a structure may be configured to receive instructions for printing at least one portion of the structure. The instructions may be based on a data model of the structure. The apparatus for forming a structure may be configured to receive material and print the at least one portion of the structure based on the instructions. The printing may include spray forming the material to produce the at least one portion of the structure.

Abstract: An eye wearing device is provided, including a body, at least one reservoir and at least one microchannel. The body has a first surface, a second surface, a center, a first outer edge of the first surface and a second outer edge of the second surface. The reservoir is disposed in the body to load the drug. The microchannel is disposed near the first outer edge of the first surface and the second outer edge of the second surface. One end of the microchannel is connected to the reservoir for filling the drug into the reservoir. The other end of the microchannel is an opening facing an edge of the eye wearing device for contacting the cornea and/or the sclera, and the opening is connected to the first outer edge of the first surface and the second outer edge of the second surface.

Abstract: A weight training equipment with an ultrasonic sensor assembly including a transmitter unit, a receiver unit, a case and the support. The case is rotatably supported upon the support to expose the transmitter and the receiver upwardly. A freely rotatable pin unit is selectively inserted into the hole of the corresponding weight block of the weight training equipment to have its reflection surface downwardly face the sensor assembly. A distance between the pin unit and the sensor assembly during exercise can be measure by ultrasound transmitted from the transmitter unit toward the pin unit and further reflected by the reflection surface and received by the receiver unit.

Abstract: Provided is a tweeter unit having an improved sound diaphragm and an integral support frame incorporating a sound diaphragm and a magnet as well as integrating an upper washer and a ring packing. The tweeter unit includes: a base frame; an improved integral support frame, including an upper clamp groove and a lower clamp groove, assembled at the base frame; at least one magnet, assembled in the lower clamp groove; an improved sound diaphragm, assembled in the upper clamp groove; and a sleeve frame, including a plurality of openings and a sleeve portion, and sleeved outside the base frame, the support frame, the at least one magnet and the improved sound diaphragm. The improved sound diaphragm includes a thin film layer and a circuit thin film layer, and the circuit thin film layer is fixed on one side of the thin film layer through an electrolytic bonding layer.