摘要:
The present invention provides a hinged clamp which allows ease in both installing and removing drop-in type food warmers. A warmer well which is placed or dropped into a cut out defined in a counter top includes an outwardly extending flange to support the warmer well on the counter top. A nut provided on the outer surface of the warmer well has a corresponding threaded member which secures a clamping means which includes a body portion and an arm. To secure the warmer well in place, the body portion and arm are positioned away from the warmer well and secured to the nut by the threaded member, which causes the arm to secure against the counter top.
摘要:
High strength, substantially linear, highly crystalline, high molecular weight-polyolefin shaped structure having a tenacity of greater than 15 g/den and an initial modulus of greater than 500 g/den by drawing never-processed polyolefin at a temperature of 60.degree. C. to 145.degree. C.; and processes for making never-processed polyolefin and such shaped structures.
摘要:
An improved process for the preparation of polymer filaments having a high tensile strength and modulus by spinning a solution of high-molecular weight polymer and thereafter stretching the filament thus formed. A solution of an ethylene polymer or copolymer, containing at least 80 percent by weight solvent, is spun at a temperature above the gel point of the solution. The ethylene polymer or copolymer contains at most about 5 percent by weight of an alkene having 3 to 8 carbon atoms, has a weight-average molecular weight Mw higher than 4.times.10.sup.5 kg/kmole, and has a weight/number average molecular weight ratio Mw/Mn lower than 5. The spun polymer solution is thereafter cooled to a temperature below its gel point to form a gel filament, which gel filament is thereafter stretched to form a polymer filament having a tensile strength of at least about 1.5 GPa at room temperature.
摘要翻译:通过旋转高分子量聚合物溶液,然后拉伸如此形成的长丝,制备具有高拉伸强度和模量的聚合物长丝的改进方法。 含有至少80重量%溶剂的乙烯聚合物或共聚物的溶液在高于溶液凝胶点的温度下纺丝。 乙烯聚合物或共聚物含有至多约5重量%的具有3至8个碳原子的烯烃,重均分子量Mw高于4×10 5 kg / kmole,并且具有重量/数均分子量Mw / Mn低于5.然后将纺丝聚合物溶液冷却至低于其凝胶点的温度以形成凝胶长丝,然后将该凝胶长丝拉伸以形成室温下拉伸强度为至少约1.5GPa的聚合物长丝。
摘要:
A process for making polymer filaments which have a high tensile strength and a high modulus by stretching a polymer filament which contains an appreciable amount of polymer solvent at a temperature between the swelling point and the melting point of the polymer.
摘要:
A process for the preparation of 3-dimethylamino-1-phenyl-(m-chlorophenyl)propan-2-ol and its salts which comprises the Raney nickel catalysed reduction of 3-nitro-1-phenyl-(1-m-chlorophenyl)propan-2-ol with simultaneous or subsequent dimethylation and thereafter, if desired, salification.
摘要:
A system, method and computer program product for a do-it-yourself (DIY) system for assisted respirators, including a full-face snorkel mask with snorkel connection; a hose having a first end connected to the snorkel connection of the mask; a blower connected a second end of the hose; and a portable power supply powering the blower. The blower includes a HEPA level filter on an air input thereof, and the blower pumps HEPA filtered air through the hose into the mask.
摘要:
The present invention provides the use of a composition comprising a block polymer as a support matrix in the manipulation, processing or analysis of particles, such as cells and fluorescent beads. In a preferred embodiment, the composition exhibits gel-sol thermoreversibility, micelle formation under gelling conditions, optically compatible, controllable surfactant properties, molecular sieving properties and biocompatibility. Further aspects of the invention provide (a) a support matrix composition comprising a block polymer, fluorescent beads and/or a dye for use in the manipulation, processing or analysis of particles, (b) a multichamber plate coated in a support matrix composition and (c) kits for producing the same.
摘要:
A medical device and related method of use for resecting a tissue. The medical device may include an elongate member having a proximal end, a distal end, and a lumen extending therebetween. The elongate member may include a distal portion defining a cavity having an opening. In addition, a mechanism may be configured to adjust a volume of the cavity by altering a depth of the cavity.
摘要:
A medical device and related method of use for cutting tissue is described. The device includes an elongate tubular member having a proximal end, a distal end, and first and second lumens extending between the proximal and distal ends. The device further includes a first elongate arm having a third lumen extending distally from the first lumen and a second elongate arm having a fourth lumen extending distally from the second lumen. A cutting element extends from the third lumen of the first arm to the fourth lumen of the second arm, such that the cutting element is slidably disposed in at least one of the third and fourth lumens.
摘要:
A device configured to facilitate resection of tissue. The device may include a proximal end configured to be secured to a distal portion of an introduction sheath and a distal end defining an opening that may communicate with a channel extending between the proximal and distal ends. The opening may be defined by at least one straight edge.