Improvements in Inverted Incandescent Gas Burners.

... 25,794. Booth, J., [trading as Booth & Co., S.], Topping, R., and Simpson, R. J. Nov. 15. Inverted incandescent gas lamps ; globe holders.- The burner a is provided with a fixed ring b or an equivalent part,to which the globe-carrying gallery c is hinged, being secured by means of a rotatable winged nut c<2> adapted to engage a slot b<2>, or by spring catches &c. The mantle may be supported by the burner tube or by the globe gallery. [Reference has been directed under Patents Act, 1902, to Specifications Nos. 10,191 and 20,453, A.D. 1903, and No. 5210, A.D. 1904.] ...

PROCEDURE AND SYSTEMS FOR THE RECUPERATION OF PEPTIDEN

SYSTEM AND METHOD FOR DETERMINING WIND DIRECTION AND VELOCITY MEASUREMENT FROM ALTITUDE FOR AN UNMANNED AERIAL VEHICLE

Wind speed and direction experienced by the UAV at altitude is determined by placing an accelerometer, gyroscope and compass on the UAV. A change in velocity experienced by the UAV is determined by the accelerometer. An orientation relative to a reference plane and an angular velocity experienced by the UAV is determined by the gyroscope. A magnetic bearing of the UAV is determined with the compass. A roll and pitch exhibited by the UAV is determined as a function of the change in velocity, orientation and change in angular velocity. Projected roll and projected pitch vectors onto a horizontal plane cutting through the center of rotation of the UAV are determined as a function of the roll and the pitch. The wind speed of the wind experienced by the UAV is determined as a function of the projected roll vector and projected pitch vector. The wind direction is determined as a function of the projected roll vector and projected pitch vector and the magnetic bearing of the UAV.

System and method for determining wind direction and velocity measurement from altitude for an unmanned aerial vehicle

Wind speed and direction experienced by the UAV at altitude is determined by placing an accelerometer, gyroscope and compass on the UAV. A change in velocity experienced by the UAV is determined by the accelerometer. An orientation relative to a reference plane and an angular velocity experienced by the UAV is determined by the gyroscope. A magnetic bearing of the UAV is determined with the compass. A roll and pitch exhibited by the UAV is determined as a function of the change in velocity, orientation and change in angular velocity. Projected roll and projected pitch vectors onto a horizontal plane cutting through the center of rotation of the UAV are determined as a function of the roll and the pitch. The wind speed of the wind experienced by the UAV is determined as a function of the projected roll vector and projected pitch vector. The wind direction is determined as a function of the projected roll vector and projected pitch vector and the magnetic bearing of the UAV.

SYSTEM AND METHOD FOR DETERMINING WIND DIRECTION AND VELOCITY MEASUREMENT FROM ALTITUDE FOR AN UNMANNED AERIAL VEHICLE

Wind speed and direction experienced by the UAV at altitude is determined by placing an accelerometer, gyroscope and compass on the UAV. A change in velocity experienced by the UAV is determined by the accelerometer. An orientation relative to a reference plane and an angular velocity experienced by the UAV is determined by the gyroscope. A magnetic bearing of the UAV is determined with the compass. A roll and pitch exhibited by the UAV is determined as a function of the change in velocity, orientation and change in angular velocity. Projected roll and projected pitch vectors onto a horizontal plane cutting through the center of rotation of the UAV are determined as a function of the roll and the pitch. The wind speed of the wind experienced by the UAV is determined as a function of the projected roll vector and projected pitch vector. The wind direction is determined as a function of the projected roll vector and projected pitch vector and the magnetic bearing of the UAV. 1. A method for determining wind speed and wind direction experienced by an unmanned aerial vehicle at altitude comprising the steps of:placing an accelerometer, a gyroscope and a compass on the unmanned aerial vehicle;determining a change in velocity experienced by the unmanned aerial vehicle with the accelerometer;determining an orientation of the unmanned aerial vehicle relative to a reference plane and an angular velocity experienced by the unmanned aerial vehicle with the gyroscope;determining a magnetic bearing of the unmanned aerial vehicle with the compass;determining a projected roll vector and a projected pitch vector onto a horizontal plane cutting through the center of rotation of the unmanned aerial vehicle as a function of the roll and pitch of the unmanned aerial vehicle in response to known wind conditions;determining a wind speed of a wind experienced by the unmanned aerial vehicle as a function of the projected roll vector and the projected pitch vector; anddetermining a wind ...

SYSTEM AND METHOD FOR DETERMINING WIND DIRECTION AND VELOCITY MEASUREMENT FROM ALTITUDE FOR AN UNMANNED AERIAL VEHICLE

Synthesis of 3,6-dialkyl-5,6-dihydro-4-hydroxy-pyran-2-one

The present invention relates to a novel process for producing a δ-lactone of the formula: using an acyl halide of the formula: wherein R 1 , R 2 R 3 and X are described herein, as well as novel intermediates. In particular, the present invention relates to a process for enantioselectively producing the (R)-δ-lactone.

Synthesis of 3,6-dialkyl-5,6-dihydro-4-hydroxy-pyran-2-one

The present invention relates to a novel process for producing a .delta.-lactone of the formula (I) using an acyl halide of the formula (1) wherein R1, R2, R3 and X are described herein, as well as novel intermediates. In particular, the present invention relates to a process for enantioselectively producing the (R)-.delta.-lactone.

Process for s-aryl-cysteine and derivatives

The present invention provides methods for preparing S-aryl cysteines in enantiomeric excess of greater than about 96%. Specifically, the present invention provides enantioselective methods for preparing S-aryl cysteines starting from cystine, cysteine or a serine.

Epimerization methodologies for recovering stereoisomers in high yield and purity

The present invention relates to methods of subjecting a mixture of stereoisomers to epimerization and optionally recrystallization procedures to obtain a desired stereoisomer in high yield and purity. Relying upon solubility differences, the epimerization desirably is carried out in a solvent mixture that extends the epimerization equilibrium in favor of the desired stereoisomer. Recrystallization from a solvent mixture upgrades the purity even more. Purified stereoisomers are useful in many applications such as intermediates in the synthesis of pharmacologically important molecules.

Synthesis of 3,6-dialkyl-5,6-dihydro-4-hydroxy-pyran-2-one

The present invention relates to a novel process for producing a δ-lactone of the formula: using an acyl halide of the formula: wherein R 1 , R 2 R 3 and X are described herein, as well as novel intermediates. In particular, the present invention relates to a process for enantioselectively producing the (R)-δ-lactone.

Process for S-aryl-L-cysteine and derivatives

The present invention provides methods for preparing S-aryl cysteines in enantiomeric excess of greater than about 96%. Specifically, the present invention provides enantioselective methods for preparing S-aryl cysteines starting from cystine, cysteine or a serine.

Supplemental view device

Synthesis of 3,6-dialkyl-5,6-dihydro-4-hydroxy-pyran-2-one

The present invention relates to a novel process for producing a δ-lactone of the formula: wherein R 1 , R 2 R 3 and X are described herein, as well as novel intermediates. In particular, the present invention relates to a process for enantioselectively producing the (R)-δ-lactone.

Verfahren und systeme zur rückgewinnung von peptiden

Synthese von 3,6-dialkyl-5,6-dihydro-4-hydroxy- pyran-2-one

Reduction methodologies for converting ketal acids, salts, and esters to ketal alcohols

The present invention relates to methods of reducing ketal acids, salts and esters to form corresponding ketal alcohols. More particularly, the reducing methods convert the ketal acids, salts, or esters to ketal alcohols by using a reducing agent that comprises a hydride that comprises one or more alkoxy moieties. The ketal alcohol is prepared in a hydrophobic reagent. This is purified by washing the hydrophobic.reagent with one or more water washes. Because the ketal alcohol has some water solubility, the water washes are back-extracted with a hydrophobic solvent to recover additional ketal alcohol from such one or more water washes. The alcohol products are useful in many applications such as intermediates in the synthesis of pharmacologically important molecules.

Process and systems for recovery of peptides

The invention provides methods of obtaining a peptide that include steps of synthesizing a peptide intermediate having one or more side chain protecting groups; providing a solvent to the peptide intermediate to form a peptide intermediate composition; and providing a precipitating agent in an amount sufficient to precipitate the peptide intermediate from the peptide intermediate composition, wherein the precipitating agent is an alcohol having three or more carbon atoms. Also provided are methods for precipitating peptides, methods for concentration peptides, and methods for filtering peptides.

Verfahren zur herstellung von s-aryl-l-cystein und derivate

System and method for determining wind direction and velocity measurement from altitude for an unmanned aerial vehicle

Wind speed and direction experienced by the UAV at altitude is determined by placing an accelerometer, gyroscope and compass on the UAV. A change in velocity experienced by the UAV is determined by the accelerometer. An orientation relative to a reference plane and an angular velocity experienced by the UAV is determined by the gyroscope. A magnetic bearing of the UAV is determined with the compass. A roll and pitch exhibited by the UAV is determined as a function of the change in velocity, orientation and change in angular velocity. Projected roll and projected pitch vectors onto a horizontal plane cutting through the center of rotation of the UAV are determined as a function of the roll and the pitch. The wind speed of the wind experienced by the UAV is determined as a function of the projected roll vector and projected pitch vector. The wind direction is determined as a function of the projected roll vector and projected pitch vector and the magnetic bearing of the UAV.

Zylindrische fluiddichtung

System and method for determining wind direction and velocity measurement from altitude for an unmanned aerial vehicle

Verfahren zur herstellung von s-aryl-cystein

Controlled gates and networks therefor