Abstract: Provided is a method for detecting respirable participles in a bulk material comprising particles. The method comprises: analyzing morphology of the particles; analyzing chemical composition of the particles; creating a profile of the particles, wherein each particle in the profile is characterized by its shape, size and chemical composition; selecting particles from the profile which match the size and chemical composition of a respirable particle; and calculating a percentage of the respirable particles in the bulk material.

Abstract: A process for preparing a compound of structural Formula Ia: comprising Boc deprotection with TFA of, reductive amination of:

Abstract: A forming method for curved glass has been provided. The method comprises: placing a flat glass plate in a pattern die, and placing the pattern die in a forming apparatus; and subjecting the pattern die successively to staged heating, staged forming and staged cooling, so as to obtain the curved glass, wherein the staged heating is performed over stages which are different from each other in temperature, the staged forming is performed over stages which are different from each other in temperature, and during at least one of the stages, a varying pressure which varies from low pressure to high pressure is applied to the pattern die, the staged cooling is performed by cooling the glass plate in the pattern die over stages which are different from each other in temperature. The glass product could be used as front and rear covers of electronic products including notebook computers, mobile phones, tablet computers and smart watches.

Abstract: The present invention is directed to a process for preparing Substituted Indole Compounds of Formula (I): wherein R1, R2, R3 and R4 are as defined herein. These indole compounds are useful as synthetic intermediates for making inhibitors of HCV NS5A.

Abstract: A system for managing online group chat and methods for making and using same. A server computer can create a topic in a chat group and receive a request from a user device for a member of the chat group to join the topic. The request can be in response to activation of a user interface for the topic on the user device. The member can be permitted in real time to join a topic subgroup associated with the topic upon determination that a membership of the topic subgroup is less than a maximum participant number. The maximum participant number can be at least partially based on a messaging service capacity of the server. A publish-subscribe messaging service can be offered for the topic subgroup. Advantageously, the topic subgroup can be dynamically updated based on operation on the user device to reduce server workload and improve user experience.

Abstract: A process for preparing a compound of structural Formula Ia: comprising Boc deprotection with TFA of, reductive amination of:

Abstract: This disclosure provides a package substrate and its fabrication method. The package substrate comprises: a first dielectric material layer have an opening; a first conductive unit including a first part in the opening of the first dielectric material layer and a second part on the first dielectric material layer; and a second dielectric material layer covering the first conductive unit and the first dielectric material layer; wherein a height of the first conductive unit is larger than a thickness of the first dielectric material layer; wherein a cross-section of the second part is larger than that of the first part in the first conductive unit.

Abstract: A heat spreading device includes sectioning forming a first chamber portion and a second chamber portion, a first plurality of conduits, and a second at least two conduits. The second at least two conduits interconnect the first chamber portion and the second chamber portion. The heat spreading device may also include cavities, a barrier, and fins.

Abstract: A clamping apparatus includes a clamping member, a cylinder assembly and a transmission assembly. The cylinder assembly includes a cylinder, a sealing head and a limiting member. The sealing head defines a gas channel connected to the inner of the cylinder. The limiting member includes a limiting portion fixed to the cylinder, which includes an inner surface having a frustoconical shape. The clamping member is received in the limiting member, and includes a frustoconical shape clamping portion. The transmission assembly includes a piston shaft, a piston and an elastic member. The piston and the elastic member are both received in the cylinder. The elastic member is resisted between the piston and the limiting member. One end of the piston shaft away from the piston is connected to the clamping portion. The clamping member defines a clamp hole in middle.

Abstract: A control system and protection method for integrated information security services are provided, which include protecting data packets of a user end device by a protecting device; generating an event log according to the protection result and transmitting the recorded event log to a collective control platform for standardizing and analyzing association by the collective control platform; detecting and transmitting abnormal information by the collective control platform to a service platform for integrating the information with network status information; displaying the integrated information on a webpage interface and transmitting the same to the user end device, thereby providing direct information on network security to save the high costs of purchasing, configuring and maintaining an information security protection system by the user.

Abstract: The invention relates to an electrocatalyst for a fuel cell comprising carbon nanotubes as substrate, ruthenium oxide deposited on the substrate, platinum particles supported on the ruthenium oxide, and manganese dioxide layer coated on the surface of the ruthenium oxide-platinum particles deposited carbon nanotubes. The invention also relates to the method of preparing the electrocatalyst for a fuel cell comprising the steps of depositing ruthenium oxide on the surface of carbon nanotubes, depositing platinum particles on the ruthenium oxide, and coating a manganese dioxide layer on the surface of the ruthenium oxide-platinum particles deposited carbon nanotubes.

Abstract: The instant disclosure relates to an LED light bulb, which includes a cap, a glass bulb, an LED module, an optical element, and a power supply module. The glass bulb is disposed on one end of the cap to cooperatively define an accommodating space. The LED module, used for emitting a first light having a first bandwidth, is received inside the accommodating space. To guide the first light, the optical element is received inside the accommodating space and located at a light path of the LED module. The optical element has a light guiding portion and a wavelength transformation portion used for changing the bandwidth of the emitted light from the LED module. The light guiding portion and the wavelength transformation portion are connected seamlessly to each other. The power supply module is disposed inside the cap and electrically connected to the LED module and the cap.

Abstract: Anti-infection levorotatory optically active compound (S-configuration) of prulifloxacin represented by the following formula (1) and preparation method thereof are disclosed. Said method utilizes levorotatory ulifloxacin as the raw material and the reaction is conducted in organic solvent in the presence of alkaline materials, wherein the reaction temperature is ?20° C.˜60° C. and the reaction time is 15 minutes to 24 hours.

Abstract: A memory comprises a row of bit cells, including a first plurality of bit cells and a second plurality of bit cells. A first word line segment driver is connected to the first plurality of bits cells. A second word line segment driver is connected to the second plurality of bits cells. The first and second word line segment drivers are selectively operable for activating one of the first and second pluralities of bit cells at a time to the exclusion of the other plurality of bit cells. A shared sense amplifier is coupled to at least one of the first plurality of bit cells and at least one of the second plurality of bit cells. The shared sense amplifier is configured to receive signals from whichever of the one first or second bit cell is activated by its respective word line segment driver at a given time.

Abstract: The instant disclosure relates to a light bulb, which includes a connecting cap, a heat-dissipating seat, a LED module, a light-guiding member, and a bulb. The heat-dissipating seat is disposed on one end of the connecting cap, and the LED module is disposed on the heat-dissipating seat. The light-guiding member is connected to the heat-dissipating seat and covers the LED module. At least one microstructure is formed on the surface of the light-guiding member for changing the light projection path. The bulb is arranged over the light-guiding member. Thereby, the light bulb can illuminate a wider area and achieve more uniform brightness. A light-guiding member is also disclosed.

Abstract: A lead-free free-cutting corrosion-resistant silicon-bismuth brass alloy, including the following: between 60.0 and 65.0 wt % of Cu, between 0.6 and 1.8 wt % of Si, between 0.2 and 1.5 wt % of Bi, between 0.02 and 0.5 wt % of Al, less than 1.5 wt % of Ni+Mn+Sn, between 0.01 and 0.5 wt % of La—Ce alloy, between 0.002 and 0.02 wt % of B, with the remainder being Zn and inevitable impurities, wherein the total amount of impurities are no more than 0.5 wt %.

Abstract: Anti-infection levorotatory optically active compound (S-configuration) of prulifloxacin represented by the following formula (1) and preparation method thereof are disclosed. Said method utilizes levorotatory ulifloxacin as the raw material and the reaction is conducted in organic solvent in the presence of alkaline materials, wherein the reaction temperature is ?20° C.˜60° C. and the reaction time is 15 minutes to 24 hours.

Abstract: A system and method for guiding and distributing network load flow is proposed and characterized by providing service-providing equipment with better packet routes to reduce the load flow of a routing device. At least two service-providing devices are connected to enable the routing device to guide the packets sent by a user-end device into the at least two connected service-providing devices for allowing the service provider used by the user to process requested services and thereby reduce the number of times of sending data packets to the routing device. In the case that the subscriber has applied for multiple network services, the packets only need to be requested once with the connected service-providing equipment in order to complete all network services.

Abstract: A lead-free free-cutting corrosion-resistant silicon-bismuth brass alloy, including the following: between 60.0 and 65.0 wt % of Cu, between 0.6 and 1.8 wt % of Si, between 0.2 and 1.5 wt % of Bi, between 0.02 and 0.5 wt % of Al, less than 1.5 wt % of Ni+Mn+Sn, between 0.01 and 0.5 wt % of La—Ce alloy, between 0.002 and 0.02 wt % of B, with the remainder being Zn and inevitable impurities, wherein the total amount of impurities are no more than 0.5 wt %.