Abstract: One exemplary embodiment of this invention provides a single-effect absorption chiller including an absorber operatively connected to a solution heat exchanger and a generator, and a condenser in fluid communication with the absorber, wherein the absorber is sized and configured to receive a feed of water from a source of water and to transfer heat to the feed of water and then to convey the feed of water to the condenser without further heat conditioning of the feed of water prior to its entry into the condenser, and wherein the condenser is sized and configured to receive the feed of water from the absorber and to transfer heat to the feed of water, thereby cooling the condenser without resorting to an external heat exchanger such as a conventional cooling tower.

Abstract: One exemplary embodiment of this invention provides a single-effect absorption chiller including an absorber operatively connected to a solution heat exchanger and a generator, and a condenser in fluid communication with the absorber, wherein the absorber is sized and configured to receive a feed of water from a source of water and to transfer heat to the feed of water and then to convey the feed of water to the condenser without further heat conditioning of the feed of water prior to its entry into the condenser, and wherein the condenser is sized and configured to receive the feed of water from the absorber and to transfer heat to the feed of water, thereby cooling the condenser without resorting to an external heat exchanger such as a conventional cooling tower.

Abstract: One exemplary embodiment of this invention provides a single-effect absorption chiller including an absorber operatively connected to a solution heat exchanger and a generator, and a condenser in fluid communication with the absorber, wherein the absorber is sized and configured to receive a feed of water from a source of water and to transfer heat to the feed of water and then to convey the feed of water to the condenser without further heat conditioning of the feed of water prior to its entry into the condenser, and wherein the condenser is sized and configured to receive the feed of water from the absorber and to transfer heat to the feed of water, thereby cooling the condenser without resorting to an external heat exchanger such as a conventional cooling tower.

Abstract: A number of cationic gold(I) and neutral gold(III) complexes have been synthesized and found to be stabilized by the use of N-heterocyclic carbene ligands. These species are often employed as in situ-generated reactive intermediates in gold catalyzed organic transformations. An isolated, well-defined cationic species was tested in gold mediated carbene transfer reactions from ethyl diazoacetate.

Abstract: Negatively charged luminescent CdSe—ZnS quantum dots (QDs) were successfully incorporated into novel luminescent glyconanospheres averaging around 190 nm in diameter through electrostatic interactions with carboxymethyldextran (CM-dextran) and polylysine. The glyconanospheres preferably contain as well carboxyl-modified iron oxide nanocrystals. In addition to electrostatic attraction between the negatively charged dextran, the negatively charged CdSe—ZnS QDs (and negatively charged iron oxide nanocrystals, if present), and the positively charged polylysine, covalent amide bonds were introduced to cross link the QDs (and negatively charged iron oxide nanocrystals, if present) with the polysaccharide matrix to further stabilize the glyconanospheres. The dextran residues on the surface of the nanospheres show high affinity toward the glucose binding protein-Concanavalin A (Con A).

Abstract: Catalytic complexes including a metal atom having anionic ligands, at least one nucleophilic carbine ligand, and an alkylidene, vinylidene, or allenylidene ligand. The complexes are highly stable to air, moisture and thermal degradation. The complexes are designed to efficiently carry out a variety of olefin metathesis reactions.

Abstract: One exemplary embodiment of this invention provides a single-effect absorption chiller including an absorber operatively connected to a solution heat exchanger and a generator, and a condenser in fluid communication with the absorber, wherein the absorber is sized and configured to receive a feed of water from a source of water and to transfer heat to the feed of water and then to convey the feed of water to the condenser without further heat conditioning of the feed of water prior to its entry into the condenser, and wherein the condenser is sized and configured to receive the feed of water from the absorber and to transfer heat to the feed of water, thereby cooling the condenser without resorting to an external heat exchanger such as a conventional cooling tower.

Abstract: Negatively charged luminescent CdSe—ZnS quantum dots (QDs) were successfully incorporated into novel luminescent glyconanospheres averaging around 190 nm in diameter through electrostatic interactions with carboxymethyldextran (CM-dextran) and polylysine. The glyconanospheres preferably contain as well carboxyl-modified iron oxide nanocrystals. In addition to electrostatic attraction between the negatively charged dextran, the negatively charged CdSe—ZnS QDs (and negatively charged iron oxide nanocrystals, if present), and the positively charged polylysine, covalent amide bonds were introduced to cross link the QDs (and negatively charged iron oxide nanocrystals, if present) with the polysaccharide matrix to further stabilize the glyconanospheres. The dextran residues on the surface of the nanospheres show high affinity toward the glucose binding protein-Concanavalin A (Con A).

Abstract: This invention provides compositions which are 1,3-oxazinan-2-one compounds of formulae (I) and (II), and oxazolidinone compounds of formula (III): wherein R is a hydrocarbyl group, a heterocyclic group, a hydrocarbyl group having at least one substituent, or a heterocyclic group having at least one hydrocarbyl substituent, wherein the substituent on the hydrocarbyl group or heterocyclic group is selected from the group consisting of a heterocyclic group, an azo group, a cyano group, a nitro group, a fluoro group, a chloro group, a bromo group, an alkoxy group having up to 15 carbon atoms, and a hydrocarbyl group having up to 15 carbon atoms; and R? and R? are each independently hydrogen, an alkyl group, an aryl group, a methylaryl group, a carbonyl group, a hydrocarbylamido group, a sulfonyl group, a sulfonamoyl group, a heterocyclic group, a heterocyclic group having at least one substituent, or an aryl group or methylaryl group having at least one substituent, where the substituent on the heterocyclic grou

Abstract: This invention provides compositions which are 1,3-oxazinan-2-one compounds of formulae (I) and (II), and oxazolidinone compounds of formula (III): wherein R is a hydrocarbyl group, a heterocyclic group, a hydrocarbyl group having at least one substituent, or a heterocyclic group having at least one hydrocarbyl substituent, wherein the substituent on the hydrocarbyl group or heterocyclic group is selected from the group consisting of a heterocyclic group, an azo group, a cyano group, a nitro group, a fluoro group, a chloro group, a bromo group, an alkoxy group having up to 15 carbon atoms, and a hydrocarbyl group having up to 15 carbon atoms; and R? and R? are each independently hydrogen, an alkyl group, an aryl group, a methylaryl group, a carbonyl group, a hydrocarbylamido group, a sulfonyl group, a sulfonamoyl group, a heterocyclic group, a heterocyclic group having at least one substituent, or an aryl group or methylaryl group having at least one substituent, where the substituent on the heterocyclic grou

Abstract: A synthetic method leading to the isolation of ruthenium-based olefin metathesis catalysts relies on the cross metathesis reaction between (L1)Ru(L2)(3-phenylindenylid-1-ene)Cl2 (where L1 and L2 can be two-electron donors) and an olefin. This method leads to the isolation of numerous ruthenium olefin metathesis catalysts.

Abstract: Imidazolium salts are the immediate precursors to N-heterocyclic carbenes (NHC) yet a simple, general synthetic route to a wide variety of imidazolium salts is not yet available. Such a straightforward route is described for two specific members of this family of ligand precursor: 1,3-Bis(2,4,6-trimethylphenyl)imidazolium chloride (IMes.HCl) and 1,3-Bis(2,6-diispropylphenyl)imidazolium chloride (IPr.HCl). The procedure appears general and similar protocols can be used to isolate various imidazolium salts.

Abstract: A high temperature (on the order of about 90° C. or above) non-aqueous synthetic procedure for the preparation of substantially monodisperse IV-VI semiconductor nanoparticles (quantum dots) is provided. The procedure includes first introducing a first precursor selected from the group consisting of a molecular precursor of a Group IV element and a molecular precursor of a Group VI element into a reaction vessel that comprises at least an organic solvent to form a mixture. Next, the mixture is heated to a temperature of about 90° C. or above and thereafter a second precursor which is different from the first precursor and is selected from the group consisting of a molecular precursor of a Group IV element and a molecular precursor of a Group VI element is added into the heated mixture.

Abstract: A heterogeneous catalytic system for RCM is recyclable, shows reactivity, tolerates functional groups and performs with dienes and highly hindered substrates.

Abstract: A synthetic method leading to the isolation of ruthenium-based olefin metathesis catalysts relies on the cross metathesis reaction between (L1)Ru(L2)(3-phenylindenylid-1-ene)Cl2 (where L1 and L2 can be two-electron donors) and an olefin. This method leads to the isolation of numerous ruthenium olefin metathesis catalysts.

Abstract: The cationic iridium carbene complexes [Ir(cod)(N)(L)]X have been synthesized by reaction of [Ir(cod)(py)2]PF6 with L or NL ligands. Complexes of this type are active hydrogenation catalysts capable of hydrogenating simple olefins at room temperature and atmospheric pressure of hydrogen or by transfer hydrogenation.

Abstract: By utilizing the sequential synthesis afforded reverse micelles, nanocomposite materials can be synthesized which have a diamagnetic core surrounded by a thin shell of ferromagnetic material passivated with a second shell of a diamagnet. Using gold as the diamagnetic material and iron as the ferromagnetic material, nanocomposites can be synthesized where there is a thin layer of the magnetic material, which is passivated and protected from oxidation. In this case, all of the spins of the magnetic layer lie within the surface of the particle.

Abstract: An attachable vertical bow plate set a distance ahead of the existing bow, preferably extending above and below the water surface, helps to reduce drag associated with a vessel. The plate's lower edge is preferably set at a depth corresponding to the depth where the existing bow begins to have its cut away.

Abstract: The magnetic and magnetotransport properties of field-aligned single domain half-metallic CrO2 powders have been studied. Needle-shaped nanoparticles of CrO2 have been aligned in a strong magnetic field. The aligned powder sample shows a strong anisotropy along the alignment direction. The conduction mechanism of the aligned CrO2 powder sample has been examined and is consistent with the intergranular spin dependent tunneling. Negative tunneling magnetoresistance (TMR) of about 41% is achieved in a small field in the vicinity of the coercive field at 5 K. The magnetoresistance (MR) versus field curve shows two well-separated narrow peaks at the coercive fields and resembles that of a magnetic tunnel junction. This junction-like MR results from the narrow switching field distribution of the aligned powders. The results suggest that the aligned magnetic CrO2 particles may find novel applications in spin transport structures and devices.

Abstract: Uniaxial magnetic anisotropy was found in the Fe/Co/Cu/Co magnetoresistive structures deposited on Si (100) substrates. Samples magnetized along an easy anisotropy axis showed extremely sharp magnetization and magnetoresistance switching at low fields and maximum giant magnetoresistance of 9.5% at 5K (5.5% at room temperature) for the samples with 5 nm of Fe,5 nm of Co, 2.5 nm of Cu and 2 nm of Co. These results were advantageous compared to Co/Cu/Co trilayers grown on Cr/Cu buffer which did not exhibit uniaxial anisotropy. Deposition on spinning wafers allowed excluding substrate related anisotropy. An existing magnetic field in the magnetron sputtering system with the strength of 32 Oe at the sample location was found the most probable source of the induced uniaxial anisotropy.