Abstract: A method of mounting electronic components on a PCB, includes following steps. The PCB is placed with a first side of the PCB facing upwards. A plurality of solder is applied on bonding pads of the first side. A plurality of electronic components is stuck on the bonding pads of the first side. The PCB is turned over with a second side of the PCB facing upwards and the first side of the PCB facing downwards. A plurality of solder is applied on bonding pads of the second side. A plurality of electronic components is stuck on the bonding pads of the second side. The PCB is placed in a reflow oven to weld the electronic components on the first side and the second side of the PCB.

Abstract: An improved mode of AFM imaging (Peak Force Tapping (PFT) Mode) uses force as the feedback variable to reduce tip-sample interaction forces while maintaining scan speeds achievable by all existing AFM operating modes. Sample imaging and mechanical property mapping are achieved with improved resolution and high sample throughput, with the mode being workable across varying environments, including gaseous, fluidic and vacuum. Ease of use is facilitated by eliminating the need for an expert user to monitor imaging.

Abstract: Polythioetherimides and a producing method thereof. The method is comprised of using monosubstituted phthalic anhydride isomer as raw material, reacting it with disubstituted amine to produce disubstituted phthalimide, allowing coupling reaction between the obtained phthalimide and an alkali metal sulfide or sulfur to produce polythioetherimides.

Abstract: Disclosed are methods for producing fluorinated organic compounds, including hydrofluoropropenes, which preferably comprises converting at least one compound of formula (I): CF3CHXCH2X ??(I) to at least one compound of formula (II) CF3CZCHZ ??(II). where X is independently Cl, Br, I or F, and Z independently is H or F. In certain preferred embodiments, each Z is different.

Abstract: The present invention relates to a process and an apparatus for separating and recovering the waste alkali from a cyclohexane oxidation solution, and provides a process and an apparatus for separating and recovering the waste alkali from a cyclohexane oxidation solution. According to the invention, a gradient combination of the gravity separation technique, the vortex separation technique and the coalescence separation technique is used to carry out fine separation of the waste alkali liquor from the cyclohexane oxidation solution. The purified cyclohexane oxidation solution is fed into a down-stream apparatus. Most of the waste alkali liquor thus separated is recycled, while the remaining is expelled. The expelled waste alkali liquor is incinerated in an incinerator, followed by recovering the molten species using a pneumatic pulverization process.

Abstract: The invention relates to a short-flow process for desulfurization of circulating hydrogen and a device for the same. A short-flow process for desulfurization of circulating hydrogen is provided, comprising: (a) removing hydrocarbons from the circulating hydrogen mixture, so that the liquid drops of the heavy hydrocarbons in the dispersion phase are separated from the circulating hydrogen in the continuous phase, and a heavy hydrocarbon phase and a mixture phase of circulating hydrogen containing sulfur are obtained; (b) further separating the resultant mixture phase to remove the sulfides therein, so that circulating hydrogen without sulfur is obtained; (c) further separating the resultant circulating hydrogen without sulfur to remove the amine solution therein, so that purified circulating hydrogen is obtained. The invention also provides a device for desulfurization of circulating hydrogen.

Abstract: The invention provides a method for purifying MTO quench water and scrubbing water via mini-hydrocyclone separation, comprising: removing the entrapped catalyst particles from the MTO quench water via mini-hydrocyclone separation; cooling the quench water purified by mini-hydrocyclone separation so as to effect the recycling of water; removing the entrapped catalyst particles from the MTO quench water to be stripped via mini-hydrocyclone separation, so as to reduce the deposition of the catalyst particles within the stripping tower; removing the entrapped catalyst particles from the MTO scrubbing water via mini-hydrocyclone separation; and cooling the scrubbing water purified via mini-hydrocyclone separation so as to effect the recycling of water. The invention also provides an apparatus for purifying MTO quench water and scrubbing water via mini-hydrocyclone separation.

Abstract: Disclosed are methods for producing fluorinated organic compounds, including hydrofluoropropenes, which preferably comprises converting at least one compound of formula (I): CF3CHXCH2X??(I) to at least one compound of formula (II) CF3CZCHZ??(II). where X is independently Cl, Br, I or F, and Z independently is H or F. In certain preferred embodiments, each Z is different.

Abstract: A method for preparing fluorinated organic compounds comprising contacting hydrogen fluoride with at least one compound of formula I: CX3CXYCH3??I where each X is independently Cl, I or Br, and each Y is independently H or F, said contacting step being carried out under conditions effective to produce a compound of formula II CF3CZCH2??II where Z is Cl, I, Br, or F.

Abstract: A method for preparing 2,3,3,3-tetrafluoropropene comprising contacting a reactant comprising CCl2?CFCH2Cl with a fluorinating agent, such as HF, under conditions effective to produce a reaction product comprising CF3CF?CH2.

Abstract: Provided is a continuous process for preparing 1,1,2,3-tetrachloro-1-propene having the steps of catalytically dehydrochlorinating CH2ClCCl2CH2Cl in the gas phase to produce CHCl?CClCH2Cl; chlorinating the CHCl?CClCH2Cl to form CHCl2CCl2CH2Cl; and catalytically dehydrochlorinating the CHCl2CCl2CH2Cl in the gas phase to form CCl2?CClCH2Cl.

Abstract: A method of operating a metrology instrument includes generating relative motion between a probe and a sample at a scan frequency using an actuator. The method also includes detecting motion of the actuator using a position sensor that exhibits noise in the detected motion, and controlling the position of the actuator using a feedback loop and a feed forward algorithm. In this embodiment, the controlling step attenuates noise in the actuator position compared to noise exhibited by the position sensor over the scan bandwidth. Scan frequencies up to a third of the first scanner resonance frequency or greater than 300 Hz are possible.

Abstract: Disclosed is a process for the synthesis of 1,3,3,3-tetrafluoropropene which comprises, in one embodiment, reacting a compound of CF3X1 with a compound of CX2H?CHX3, wherein X1, X2, and X3 are each independently selected from the group consisting of fluorine, chlorine, bromine and iodine, to produce a reaction product comprising a compound of CF3CH?CHX3, wherein X3 is as described above; and when X3 is not fluorine, fluorinating the compound to produce 1,3,3,3-tetrafluoropropene. The process in another embodiment comprises preparing tetrafluoropropene comprising thermally cracking one or more compounds capable of producing a reaction mixture which preferably comprises diflurocarbene radicals and vinylidene fluoride, and converting said reaction mixture into—tetrafluoropropene (1,3,3,3-tetrafluoropropene).

Abstract: Disclosed is a process for producing fluorinated organic compounds, including hydrofluoropropenes, which preferably comprises converting at least one compound of Formula (I): C(X)3CF2C(X)3??(I) to at least one compound of Formula (II) CF3CF?CHZ??(II) where each X and Z is independently H, F, Cl, I or Br, said process preferably not including any substantial amount of oxygen-containing catalyst in certain embodiments. Preferably Z is H.

Abstract: A method and apparatus include referencing a phonetic language database that includes double-byte font entries and associated phonetic representations of the double-byte font entries. At least one of the double-byte font entries is used to obtain a phonetic representation of the used at least one double-byte font. The phonetic representation is displayed on a display device.

Abstract: A method for preparing fluorinated organic compounds comprising contacting hydrogen fluoride with at least one compound of formula I: CX3CXYCH3??I where each X is independently Cl, I or Br, and each Y is independently H or F, said contacting step being carried out under conditions effective to produce a compound of formula II CF3CZCH2??II where Z is Cl, I, Br, or F.

Abstract: Disclosed are methods for producing fluorinated organic compounds, including hydrofluoropropenes, which preferably comprises converting at least one compound of formula (I): CF3CHXCH2X ??(I) to at least one compound of formula (II) CF3CZCHZ ??(II). where X is independently Cl, Br, I or F, and Z independently is H or F. In certain preferred embodiments, each Z is different.

Abstract: A method and apparatus include referencing a phonetic language database that includes double-byte font entries and associated phonetic representations of the double-byte font entries. At least one of the double byte font entries is used to obtain a phonetic representation of the used at least one double-byte font. The phonetic representation is displayed on a display device.

Abstract: Systems and methods are described for monitoring the activity of an object to aid in debugging a problem with an application using the object. An operating system registry is altered to reference a proxy object when the application attempts to reference the object. The proxy object exposes an interface exposed by the object. Communications passing between the application and the object can be monitored in the proxy object. The proxy object can be monitored locally or remotely through a remote procedure channel.

Abstract: Systems and methods are described for monitoring the activity of an object to aid in debugging a problem with an application using the object. An operating system registry is altered to reference a proxy object when the application attempts to reference the object. The proxy object exposes an interface exposed by the object. Communications passing between the application and the object can be monitored in the proxy object. The proxy object can be monitored locally or remotely through a remote procedure channel.