Abstract:
Disclosed is a process of forming a pyrrole compound. The process comprises contacting an α-carbonyl oxime compound 1 and an α,β-unsaturated aldehyde 2 R1 and R2 in compound 1 are independently selected from the group consisting of H, a silyl-group, an aliphatic group, an alicyclic group, an aromatic group, an arylaliphatic group, and an arylalicyclic group. The aliphatic, alicyclic, aromatic, arylaliphatic, and arylalicyclic groups comprise 0 to about 3 heteroatoms selected from the group N, O, S, Se and Si. R3 in aldehyde 2 is selected from the group consisting of H, a silyl-group, an aliphatic group, an alicyclic group, an aromatic group, an arylaliphatic group, and an arylalicyclic group. The aliphatic, alicyclic, aromatic, arylaliphatic, and arylalicyclic groups comprise 0 to about 3 heteroatoms selected from the group N, O, S, Se and Si. The α-carbonyl oxime compound 1 an the α,β-unsaturated aldehyde 2 are contacted in a suitable solvent in the presence of a secondary amine. The compounds are contacted for a sufficient period of time to allow the formation of an N-hydroxypyrrole compound 3
Abstract:
Yeast composition for cow feed additive including at least ruminant yeast and a carrier. The carrier is selected from DDGS (corn lees), chaff, zein powder, brewery mash, bean pulp, soybeanhull, rice bran, or wheat bran. The yeast composition can alleviate the negative effects of heat stress experienced by cows during summer months and improve milk yield.
Abstract:
Disclosed is a process of carrying out a Michael reaction with recovery of the catalyst, where a compound of formula (1): is reacted with a compound of formula (2): in the presence of a catalyst of formula (4): where the compounds of formulae (1) and (2) undergo a Michael reaction.
Abstract:
Techniques for encryption key destruction for secure data erasure via an external interface or physical key removal are described. Electrical destruction of key material retained in a memory of a storage device renders the device securely erased, even when the device is otherwise inoperable. The memory (e.g. non-volatile, such as flash) stores key material for encrypting/decrypting storage data for the device. An eraser provides power and commands to the memory, even when all or any portion of the device is inoperable. The commands (e.g. erase or write) enable zeroizing or destroying the key material, rendering data encrypted with the destroyed key material inaccessible, and therefore securely erased. Alternatively, the memory is a removable component (e.g. an external security device or smartcard) coupled to the device during storage operation. Removing and physically destroying the memory renders the device securely erased. The device and/or the memory are sealed to enable tamper detection.
Abstract:
A heat dissipation device includes a fin set, first and second base plates and first and second heat pipes. The first base plate has a face for contacting a heat generating electronic device. The first heat pipe includes first and second sections sandwiching the fin set between the first and second sections and engaging with the fin set. The first and second base plates sandwich the first heat pipe and the fin set between the first and second base plates and engage with the first heat pipe and the fin set. The second heat pipe includes first and second sections sandwiching the first heat pipe, the fin set, the first and second base plates between the first and second sections of the second heat pipe and engaging with the first and second base plates.
Abstract:
A process for drawing essentially diluent-free gel-spun polyethylene multi-filament yarns in a forced convection air oven and the drawn yarns produced thereby, The process conditions of draw ratio, stretch rate, residence time, oven length and feed speed are selected in specific relation to one another so as to achieve enhanced efficiency and productivity. The drawn yarns are useful in armor, composites, fishing line, ropes, sutures, fabrics and other applications.
Abstract:
A heat dissipation device includes a fin set, first and second base plates and first and second heat pipes. The first base plate has a face for contacting to a heat generating electronic device. The first heat pipe includes first and second sections sandwiching the fin set therebetween and thermally engaging with the fin set. The first and second base plates sandwich the first heat pipe and the fin set therebetween and thermally engaging with the first heat pipe and the fin set. The second heat pipe includes first and second sections sandwiching the first heat pipe, the fin set, the first and second base plates therebetween and thermally engaging with the first and second base plates.
Abstract:
Disclosed is a process of enantioselectively forming an aminoxy compound of Formula (3) In formula (3) R1 is one of an aliphatic group and an alicyclic group. R2 is one of hydrogen, an aliphatic group, an alicyclic group, an aromatic group, an arylaliphatic group and an arylalicyclic group. R3 is one of hydrogen, halogen, hydroxyl, and an aliphatic group with a main chain having 1 to about 10 carbon atoms. The respective aliphatic, alicyclic, aromatic, arylaliphatic or arylalicyclic groups of R1, R2, and R3 comprise 0 to about 3 heteroatoms independently selected from the group consisting of N, O, S, Se and Si. The process includes contacting a carbonyl compound of Formula (1) and a nitroso compound of Formula (2) in the presence of a chiral catalyst. The chiral catalyst is a compound of Formula (IX)
Abstract translation:公开了对映选择性地形成式(3)的氨氧基化合物的方法。在式(3)中,R 1是脂族基和脂环基之一。 R2是氢,脂肪族基团,脂环族基团,芳香族基团,芳基脂族基团和芳基脂环族基团中的一种。 R 3是氢,卤素,羟基和具有1至约10个碳原子的主链的脂族基团之一。 R 1,R 2和R 3各自的脂族,脂环族,芳族,芳基脂族或芳基脂环基包含0至约3个独立地选自N,O,S,Se和Si的杂原子。 该方法包括在手性催化剂的存在下使式(1)的羰基化合物与式(2)的亚硝基化合物接触。 手性催化剂是式(IX)的化合物,
Abstract:
A method and apparatus for utilizing user behavior to immediately modify sets of search results so that the most relevant documents are moved to the top. In one embodiment of the invention, behavior data, which can come from virtually any activity, is used to infer the user's intent. The updated inferred implicit user model is then exploited immediately by re-ranking the set of matched documents to best reflect the information need of the user. The system updates the user model and immediately re-ranks documents at every opportunity in order to constantly provide the most optimal results. In another embodiment, the system determines, based on the similarity of results sets, if the current query belongs in the same information session as one or more previous queries. If so, the current query is expanded with additional keywords in order to improve the targeting of the results.