Abstract:
The invention provides a poultice or sacrificial render comprising fibrous material and diatomaceous earth. Preferably, the ratio of fiber to diatomaceous earth is in the range 1:6 to 6:1 and the fibrous material contains relatively long fibers, such as would be obtained from the manufacturing or pulping of quality paper, for example fibers in the range 1 mm to 4 mm. The invention also provides a poultice mixture comprising fiber, diatomaceous earth and water and optional additives such as a binder or thickening agent and a biocide. The invention also provides a method of removing salt from a salt permeable object comprising the step of applying the poultice mixture to the salt permeable object.
Abstract:
The invention provides a poultice or sacrificial render comprising fibrous material and diatomaceous earth. Preferably, the ratio of fiber to diatomaceous earth is in the range of 1:6 to 6:1 and the fibrous material contains relatively long fibers, such as would be obtained from the manufacturing or pulping of quality paper, for example, fibers in the range of 1mm to 4mm. The invention also provides a poultice mixture comprising fiber, diatomaceous earth and water and optional additives such as a binder or thickening agent and a biocide. The invention also provides a method of removing salt from a salt permeable object comprising the step of applying the poultice mixture to the salt permeable object.
Abstract:
This invention is directed toward non-pathogenic human immunodeficiency virus type 1 (HIV-1) strains containing deletions in the nef gene and U3 region of the long terminal repeat (LTR). A blood donor infected with HIV-1 and a cohort of six blood or blood product recipients infected from this donor were identified. These individuals, who remained free of HIV-1-related disease with stable and normal CD4.sup.+ lymphocyte counts 10 to 14 years after infection, were termed long-term nonprogressors (LTNPs). The molecular characterization of HIV-1 sequences obtained from either virus isolates or patient peripheral blood mononuclear cells (PBMCs) of LTNPs identified similar deletions in the nef gene and in the region of overlap of nef and the U3 region of the LTR. Full-length sequencing of one isolate genome and amplification of selected HIV-1 genome regions from other cohort members revealed no other abnormalities of obvious functional significance. These deletions corresponded to amino acids 166-206, or nucleotides 9281 to 9437, of the HIV-1.sub.NL43 nef/LTR region. These data illustrate the importance of nef or the U3 region of the LTR in determining the pathogenicity of HIV-1. These non-pathogenic strains should prove useful, inter alia, in the development of HIV-1-specific diagnostic reagents.
Abstract:
In a high efficiency amplitude modulation circuit. A pulse width modulation switch is arranged with a low pass filter to attentuate switching frequencies of the switch. A diode is connected in parallel with the input terminals of the low pass filter which diode provides a current discharge path for the filter while the switch is non-conductive. A further filter is also connected in parallel with the input terminals of the low pass filter, this further filter being arranged to provide cancellation of the input susceptance of the low pass filter over at least part of its pass band. The two filters in combination are such as to present a constant input conductance over at least part of the pass band of the low pass filter.
Abstract:
Embodiments of the person-to-person (P2P) payment system and method described herein include a payor (“sender”) who is a member of a P2P payment network initiating a payment transaction by specifying an identity of a payee (“receiver”) to receive funds and a source value form. The identity of the receiver comprises an email address or a telephone number, to name two examples. The receiver may or may not be in the P2P payment network. The receiver may choose a destination account and destination value form for the funds. The destination account need not be in the P2P network. The destination value form need not be the same as the source value form.
Abstract:
A method and apparatus for internetworking multiple person-to-person (P2P) payment networks and financial institutions is disclosed. Embodiments include receiving a request to send funds from a payor, the request containing one of the payee's email address and mobile phone number; determining whether the payee is registered with a network financial institution that is within a P2P network of the payer (the originating P2P network), wherein determining includes matching one of the payee's email address and mobile phone number; if the payee is registered within the originating P2P network financial institution, transferring the funds to the payee account at the network financial institution and notifying the payee and posting the transaction on the network financial institution web site; and if the payee is not registered within the originating P2P network determining whether the payee is registered with any second payment network connected to the internetwork payment hub with which the originating network is connected wherein determining includes matching one of the email or mobile phone number of the payee specified by the payor.
Abstract:
The present invention is directed to a lubricating oil composition, a diesel engine comprising a lubricating oil composition, and a method of lubricating a diesel engine provided with an exhaust gas recirculation system, comprising lubricating said engine with a lubricating oil composition comprising an oil of lubricating viscosity, and a polymeric N-dispersant booster comprising monomer units of: a) 0 to 40 wt. % of one or more ethylenically unsaturated ester compounds of formula (I) wherein R is equal to H or CH3, R1 represents a linear or branched alkyl group with 1 to 5 carbon atoms, R2 and R3 independently represent H or a group of the formula —COOR′, wherein R′ is H or an alkyl group with 1 to 5 carbon atoms, b) 10 to 98 wt. % of one or more ethylenically unsaturated ester compounds of formula (II) wherein R is equal to H or CH3, R4 represents a linear or branched alkyl group with 6 to 15 carbon atoms, R5 and R6 independently represent H or a group of the formula —COOR″, wherein R″ is H or an alkyl group with 6 to 15 carbon atoms, c) 0 to 30 wt. % of one or more ethylenically unsaturated ester compounds of formula (III) wherein R is equal to H or CH3, R7 represents a linear or branched alkyl group with 16 to 30 carbon atoms, R8 and R9 independently represent H or a group of the formula —COOR′″, wherein R′″ is H or an alkyl group with 16 to 30 carbon atoms, d) 0 to 30 wt. % vinyl monomers, e) 7 to 25 wt. % of at least one N— dispersant monomer, wherein a)-e) add up to 100 wt. %.
Abstract:
The present invention is directed to a lubricating oil composition, a diesel engine comprising a lubricating oil composition, and a method of lubricating a diesel engine provided with an exhaust gas recirculation system, comprising lubricating said engine with a lubricating oil composition comprising an oil of lubricating viscosity, and a polymeric N-dispersant booster comprising monomer units of: a) 0 to 40 wt. % of one or more ethylenically unsaturated ester compounds of formula (I) wherein R is equal to H or CH3, R1 represents a linear or branched alkyl group with 1 to 5 carbon atoms, R2 and R3 independently represent H or a group of the formula —COOR′, wherein R′ is H or an alkyl group with 1 to 5 carbon atoms, b) 10 to 98 wt. % of one or more ethylenically unsaturated ester compounds of formula (II) wherein R is equal to H or CH3, R4 represents a linear or branched alkyl group with 6 to 15 carbon atoms, R5 and R6 independently represent H or a group of the formula —COOR″, wherein R″ is H or an alkyl group with 6 to 15 carbon atoms, c) 0 to 30 wt. % of one or more ethylenically unsaturated ester compounds of formula (III) wherein R is equal to H or CH3, R7 represents a linear or branched alkyl group with 16 to 30 carbon atoms, R8 and R9 independently represent H or a group of the formula —COOR′″, wherein R′″ is H or an alkyl group with 16 to 30 carbon atoms, d) 0 to 30 wt. % vinyl monomers, e) 7 to 25 wt. % of at least one N— dispersant monomer, wherein a)-e) add up to 100 wt. %.