33results about How to "Limited lifespan" patented technology

An owner controlled file protection and control system that uses a protected file that is encrypted and has embedded with access and use control features. The file is selected and encrypted and combined with a set of encrypted policy rules by an encryption software program. The policy rules are one or more ‘access rules’ and ‘use rules’ that determine who, what, when, and where the protected file may be accessed and how the protected file will be used. They may be selectively changed at any time and may be location, time and date sensitive. The protected file may be sent to the recipient or stored in a file that the recipient may accessed. During use, each recipient must register with the system and is assigned a registered ID. Using the ‘access rule’, the owner may assign a particular recipient ID to the protected file. A recipient then uses a reader program to generate a request to access and use the protected file to a management server. Management server then reviews the policy rules associated with the protected file to determine if they are satisfied. If the rules are satisfied, then time sensitive digital certificate is sent to the recipient that allows the protected file to be accessed and used according to the policy rules.

An exemplary LED streetlamp installation seat and an LED lamp both has a seat body (1), which has a first accommodating chamber (11) and a second accommodating chamber (12) the first accommodating chamber (11) being used to accommodate a control device (7) for controlling the LED streetlamp and the second accommodating chamber (12) being used to accommodate a fixing device (8) for installing the LED lamp to a lamp-post; and a cover cap, corresponding to the first and the second accommodating chambers (11, 12), which has a first cap (21) and a second cap (22), the first cap (21) and the second cap (22) being hinge-joined. The first cap (21), corresponding to the first accommodating chamber (11), is detachably connected to the first accommodating chamber (11). The second cap (22), corresponding to the second accommodating chamber (21), is detachably connected to the second accommodating chamber (21).

Encryption key exchange processes are disclosed. A disclosed method includes initiating communication between a portable communication device including a token and a first limited use encryption key, and an access device. After communication is initiated, the portable communication device receives a second limited use key from a remote server via the access device. The portable communication device then replaces the first limited use key with the second limited use key. The second limited use key is thereafter used to create access data such as cryptograms that can be used to conduct access transactions.

The invention relates to improved culture methods for expanding epithelial stem cells and obtaining organoids, to culture media involved in said methods, and to uses of said organoids.

The invention discloses an electrode of a lithium sulfur battery and a preparation method thereof. The electrode of the lithium sulfur battery includes an active substance layer containing sulfur, and conductive hydroxyl or carboxyl layers are formed on the upper surface and the lower surface of the active substance layer respectively; the active substance layer and the conductive hydroxyl are combined, or the active substance layer and the conductive carboxyl layers are combined, through external pressure, a surface substance of the active substance layer generates cross-linking interaction and hydrogen bond interaction with a fiber component of the conductive hydroxyl or carboxyl layers. The hydroxyl or carboxyl layers have high specific surface area, can adsorb polysulfide and inhibit a back-and-forth shuttling effect. The three-layer electrode structure has higher porosity, can store more electrolyte liquids, is conducive to slow down dissolution of sulfur and polysulfide, thereby ensuring occurrence of positive electrode reactions and improving the discharge capacity of the battery. Increase of the electrolyte liquid viscosity due to dissolution of the sulfur and polysulfide is also effectively alleviated. The preparation method is simple, and is easy to popularize and apply.

A thermal management system for a battery pack having a conductive cooling plate and battery cells includes a compressor, flow control valves, temperature sensor(s), and a controller. The compressor circulates refrigerant through the plate to cool the cells. The temperature sensor measures a temperature of the battery pack. The controller is programmed to receive the temperature from the temperature sensors and selectively transmit switching control signals to the valves to command a change in direction or flow of the refrigerant through the cooling plate. This limits a temperature variance between the battery cells over time. A vehicle includes a transmission, an electric traction motor, a battery pack, and the thermal management system noted above. A method includes receiving the temperature, transmitting switching control signals to the valves, and controlling a flow of refrigerant through the plate via the valves in response to the switching control signals.

The invention relates to a passive type pin valve. The pin valve comprises a valve nozzle, a first flow passage interconnecting body, a second flow passage interconnecting body, a valve pin, a push rod, a spring, a pouring port connecting piece and a flange disc; one end of the valve nozzle is provided with a cone body with a central feed injection port; the other end of the valve nozzle has a cavity body structure; the first flow passage interconnecting body and the second flow passage interconnecting body are arranged inside the cavity body structure of the valve nozzle and provided with central pylomes; the side of each pylome is also provided with at least one shunting passage communicated with the central feed injection port of the valve nozzle; the valve pin is arranged in the central feed injection port of the valve nozzle and the central pylome of the first flow passage interconnecting body; the push rod is arranged inside a cavity body of the second flow passage interconnecting body and is of an inverse T type; one end of the push rod is supported against one end of the valve pin; the spring is sleeved on a push rod body; one end of the spring is supported against the T type end; one side end of the pouring port connecting piece is provided with a cavity body and is sleeved at one end of the second flow passage interconnecting body; the pouring port connecting piece is provided with a central feed port which is communicated with a port of the shunting passage of the second flow passage interconnecting body; and the flange disc is sleeved on the pouring port connecting piece. The passive type pin valve adopts thread connection between parts, can meet the requirement of pressure injection molding and can automatically complete the action of opening or closing the valve along the change of fluid pressure.

The invention relates to in vitro cell culture methods for expanding epithelial cells from head and neck tissue, including head and neck tumour tissue, to obtain organoids. The invention relates to culture media suitable for use with said methods, organoids obtainable or obtained by said methods and uses of said culture methods, media and organoids in drug discovery and validation, toxicity assays, diagnostics and therapy.

A connector including a biodegradable base material and a biodegradable binder material, comprising at least one of a protein and a residue, configured to hold together the base material to form a biodegradable connector element. The biodegradable connector element affects an operational condition of an apparatus the biodegradable connector element is used within. Degradation of at least one of the biodegradable base material, the biodegradable binder, and the biodegradable connector element provides for a limited operational lifespan of the apparatus resulting in the apparatus becoming inoperable. A system is also disclosed.

The invention provides a method for preventing senescence and death of somatic cells by culturing the cells in the presence of serum and follicular fluid or components of follicular fluid. The somatic cells with a limited lifespan in vitro acquire properties of stem cells and can be passaged continuously, but only in the continuing presence of follicular fluid or components thereof.

The invention relates to improved methods for culturing an epithelial stem cell or an organoid comprising epithelial stem cells. The invention also relates to culture media suitable for use with said methods, organoids obtainable or obtained by said methods and uses of said culture methods, media and organoids in drug discovery and validation, toxicity assays, diagnostics and therapy.

The present disclosure provides an organic compound having the following formula and an organic light emitting diode (OLED) and an OLED device including the organic compound.

A method implemented by a computer processing circuit connected to an electronic nose, for identifying a given item by an olfactory signature, the method making use of the electronic nose to obtain an olfactory signature, repeating the use of the electronic nose a first number K of times in order to acquire K olfactory signatures, making use of the computer processing circuit in order to estimate, on the basis of the K olfactory signatures, a model of the olfactory signature of the given item, acquiring, with an electronic nose of the same type, a current measurement of the olfactory signature of a current item of the same type as the given item, and comparing the current measurement to the model, in order to estimate a similarity (SIM) between the current item and the given item.

Provided is a catalyst for a Fenton system, and a method of preparing the same. The catalyst includes one or more species of d⁰-orbital-based or non-d⁰-orbital-based catalyst including NO₃⁻/SO₄²⁻/H₂PO₄⁻/HPO₄²⁻/PO₄³⁻ functional groups on the surface thereof. The method includes preparing a d⁰-orbital-based or non-d⁰-orbital-based transition metal oxide; and preparing a transition metal oxide catalyst comprising a NO₃⁻, SO₄²⁻, H₂PO₄⁻, HPO₄²⁻, or PO₄³⁻ functional group on the surface of the catalyst via nitrification, sulfation, or phosphorylation of the transition metal oxide.

The present invention provides a method for inhibiting the activation of telomerase and an agent for inhibiting the activation of telomerase, a method for inhibiting telomerase activity and an agent for inhibiting telomerase activity, a method for preventing and/or a method for treating a cancer disease, an agent for preventing and/or an agent for treating a cancer disease, all of which comprises inhibiting the binding of MAPKAPK3 to TERT that is a catalytic subunit of telomerase or inhibiting the phosphorylation of TERT by active MAPKAPK3; a method of identifying a compound that inhibits the binding of MAPKAPK3 to TERT or a compound that inhibits the phosphorylation of TERT by active MAPKAPK3; and a reagent kit.

Updating firewalls can be difficult if many devices need to be manually reconfigured. To assist, vendors provide management tools. If the tool requires manual adding/deleting known firewalls, this is problematic in networks with many devices. If devices are hosted within a virtual private cloud, the tool may adopt a centralized “star” configuration and maintain live contact with all firewalls. This exposes firewalls to risk if the central tool is compromised. An alternative to a central tool is to implement a tool local to an environment, secure the tool with multi-level authentication, and provide automatic active firewall discovery, e.g., automate adding/deleting firewalls in an environment defined with respect to criteria that may be used to define a collection of active firewalls. Configuration changes may be pushed to the collection. Authentication credentials to access the firewalls are ephemerally cached and flushed after use so the tool cannot be compromised.