Abstract:
Methods for purifying glycerin contaminated with one or more lower boiling alcohols such as methanol, ethanol, straight, branched or cyclic C3-C6 alcohols, and the like. The methods are particularly useful for purifying crude glycerin phases recovered from the synthesis of biofuels. The present invention uses distillation techniques to strip alcohol contaminants from glycerin. In contrast to conventional methods that carry out distillation either under substantially anhydrous or very wet conditions, the present invention carries out distillation in the presence of a limited amount of water, e.g., from about 0.8 to about 5 parts by weight of water per 100 parts by weight of contaminated glycerin to be purified.
Abstract:
Methods for purifying glycerin contaminated with one or more lower boiling alcohols such as methanol, ethanol, straight, branched or cyclic C3-C6 alcohols, and the like. The methods are particularly useful for purifying crude glycerin phases recovered from the synthesis of biofuels. The present invention uses distillation techniques to strip alcohol contaminants from glycerin. In contrast to conventional methods that carry out distillation either under substantially anhydrous or very wet conditions, the present invention carries out distillation in the presence of a limited amount of water, e.g., from about 0.8 to about 5 parts by weight of water per 100 parts by weight of contaminated glycerin to be purified.
Abstract:
The embodiments provided herein are directed to a system and method of message-triggered voice command interface in portable electronic devices. The voice command interface is normally not activated until a message (e.g., an e-mail, a text message, or a voice mail) has been received by a portable electronic device. The arriving of a message is used to trigger the voice command interface by activating one or more speech recognition routines in a predetermined time period corresponding to the one or more speech recognition routines. The voice command interface come to an end when the predetermined time period expires or the user has no further commands.
Abstract:
The embodiments provided herein are directed to a system and method of message-triggered voice command interface in portable electronic devices. The voice command interface is normally not activated until a message (e.g., an e-mail, a text message, or a voice mail) has been received by a portable electronic device. The arriving of a message is used to trigger the voice command interface by activating one or more speech recognition routines in a predetermined time period corresponding to the one or more speech recognition routines. The voice command interface come to an end when the predetermined time period expires or the user has no further commands.
Abstract:
The embodiments provided herein are directed to a system and method of message-triggered voice command interface in portable electronic devices. The voice command interface is normally not activated until a message (e.g., an e-mail, a text message, or a voice mail) has been received by a portable electronic device. The arriving of a message is used to trigger the voice command interface by activating one or more speech recognition routines in a predetermined time period corresponding to the one or more speech recognition routines. The voice command interface come to an end when the predetermined time period expires or the user has no further commands.
Abstract:
The embodiments provided herein are directed to a system and method of message-triggered voice command interface in portable electronic devices. The voice command interface is normally not activated until a message (e.g., an e-mail, a text message, or a voice mail) has been received by a portable electronic device. The arriving of a message is used to trigger the voice command interface by activating one or more speech recognition routines in a predetermined time period corresponding to the one or more speech recognition routines. The voice command interface come to an end when the predetermined time period expires or the user has no further commands.
Abstract:
Embodiments of the present invention relate to implanting arsenic into a wafer to quickly detect if there is metal contamination, such as iron, aluminum, or manganese, on the wafer. In accordance with an aspect of the present invention, a method for detecting metal contamination of a silicon chip comprises implanting arsenic ions into the silicon chip, and etching the silicon chip with a chemical etching solution. The existence of any metal contamination is detected by observing occurrence of silicon pits on the silicon chip caused by reaction between the arsenic ions and the metal contamination and etching with the chemical etching solution.