摘要:
A central flow double diaphragm pump controlled by an operating fluid distribution module with a pivoting sealing member and protruding wing, that pivots on a low friction seal. The pump also includes a central pump body having an inlet and discharge manifolds, and two pumped fluid chambers in the central pump body each including a pumped fluid chamber inlet port and outlet port; within each chamber the inlet port is positioned higher than the outlet port. Two suction check valves are located in the central body, close to the suction inlet, above the pump's shaft, and these valves' outlets connect directly to the pumped fluid chamber inlet ports. Two discharge check valves are located in the central pump body, close to the discharge outlet and below the shaft, and the pumped fluid chamber outlet ports connect directly to these valves' inlets. Removable access caps are included above the check valves.
摘要:
A method and a system is provided to form deletion windows on a glass substrate. The method includes the steps of applying a provisional masking substance of the glass substrate for masking preestablished regions of said glass substrate. The method also includes applying a reflective material on the glass substrate including the provisional masking substance. The method further includes applying heat to the glass substrate for removing the provisional masking substance of the glass substrate forming the deletion windows.
摘要:
The present patent describes a method for a Movement and Vibration Analyzer (MVA) based on Fast Fourier Transform spectral analysis, and empirical mode decomposition (EMD) for Hilbert transform of a timeseries recorded with an accelerometer attached to a human being or an object. The medical application is the detection of Parkinson's disease (PD) and other neurological motor disorders (Dystonias, Dyskinesias, Huntington's disease, Essential Tremor, Multiple System Atrophy (MSA), etc), which affects worldwide more than 5 million persons, where the highest percentage is in the ageing population. The industrial application is the study of vibration and maintenance of rotational devices (motors, turbines, and others which have an intrinsic sinusoidal likewise movement). An EMD is carried out on the acceleration signal which produces a collection of intrinsic mode functions (IMF), on which the Hilbert transform is carried out. A set of parameters extracted from the Hilbert Transformed signal gives information of the deviation of the discontinuities. (1) Number of peaks of the derivative of the Hilbert phase higher than a threshold and normalized to time length of the signal and sampling frequency. (2) Variance or standard deviation of the derivative of the Hubert phase, φ′H(t). (3) Fractal dimension (DF) of the curve (HR(t), HI(t)), Hilbert plane. From the power spectrum estimate of the acceleration signal, the parameters used are: (4) Mean frequency. (5) Frequencies of the N main components. These five parameters are combined using fuzzy logic or an ordinal multiple logistic regression to define the movement index (MI), an index from 0 to 100, where 0 indicates no deviation from the sinusoidal movement while increasing numbers indicate larger deviation from the sinusoidal movement.
摘要:
A method of extracting zinc from a sulphidic ore is provided which comprises bioleaching the ore in a heap with acidophilic microorganisms to produce a pregnant leach solution which is recovered from the bottom of the heap. An integrated process which comprises subjecting the pregnant leach solution to neutralization and solvent extraction to produce a concentrated zinc solution is also provided. Zinc may be recovered from the concentrated solution by means of electrowinning, either in the absence or presence of manganese. Alternatively zinc may be recovered in the form of a zinc compound.
摘要:
The present invention is a central flow double diaphragm pump controlled by an operating fluid distribution module on the topside. A pivoting sealing member with a protruding wing pivots on the low friction seal of the operating fluid distribution module. The pumped fluid chambers' inlet and outlet ports are positioned at different levels within the projected section of each chamber. The four check valves, for example, but not necessarily, ball valves, are arranged in a special configuration. All four check valves, two suction check valves and two discharge check valves, are located in the centre of the pump's wetted body and are accessible from the topside of the wetted body. The two suction check valves are located close to the pump inlet, above the shaft, and the valves' outlets connect immediately into the diaphragm chambers. The two discharge check valves are located close to the pump outlet, below the shaft, and the valves' inlets connect immediately from the diaphragm chambers. The arrangement of the check valves, all accessible from the topside, allows the valves to be removed for maintenance from above, after disassembly of just the operating fluid distribution module and the check valve access caps, without disconnecting the pump from the fluid line. Similarly the arrangement of the chamber covers allow the diaphragms, without fastenings, to be removed for maintenance from the pump sides, after disassembly of only the operating fluid distribution module and the chamber covers, without disconnecting the pump from the fluid line.
摘要:
A nebulizer which has an insertable container and a counter device for counting operations of the nebulizer, and is opened for replacing the container. A securing device having locking portions which are forced apart is provided to prevent reconnection of an already used container. The nebulizer has an indicator for showing the current container number and/or symbols indicating the need container replacement. The indicator is driven by the force of an internal spring. The indicator member also controls a lock of the container for locking the container against further actuation. The lock is reset after container replacement.
摘要:
A method of analyzing an OCT image. An OCT image has many differently colored dots. The system detects the number of differently colored dots, quantifies them and performs statistical analyses to determine a likelihood of disease. The different colored dots correspond to different retina cell types and structures.
摘要:
A process for recovering copper from heap leach residues, the process comprising treating heap leach residues to provide treated heap leach residues providing improved permeability of a heap of the treated heap leach residues, and leaching the heap of the treated heap leach residues with a leaching solution. Treating the heap leach residues includes: a) blending the heap leach residues with additional material to provide a blend; or b) agglomerating the heap leach residues; or c) both blending the heap leach residues with additional material and agglomerating.
摘要:
The invention relates to a multicarrier signal consisting of a temporal succession of symbols formed by a set of data elements, each of said data elements modulating a carrier frequency of said signal, said symbols being organized in successive frames each comprising a plurality of symbols, one of said carrier frequencies modulated, at a given point in time, by one of said data elements being called a carrier.According to the invention, at least some of said frames each comprise at least one reference symbol integrally consisting of reference data elements known at least to one receiver and complying with at least one constraint on the value of at least one of said reference data elements, so as to obtain the reduction, at reception, of at least one interference term affecting at least another of said reference data elements.
摘要:
A fluid flow sensor, a method of detecting flow/no flow and flow systems employing same are provided. In one embodiment, an infrared light emitting diode (“LED”), phototransistor, rigid housing and a flexible opaque diaphragm are used. The diaphragm opens upon a certain pressure and closes when that pressure is no longer present. The infrared LED is located at one end of a flow sensor, while the phototransistor is located at the opposite end. The flexible opaque diaphragm is located between the LED and the phototransistor. When flow is initiated, the diaphragm is pushed open allowing light from the infrared LED to pass through and be detected by the phototransistor. When flow is stopped, the diaphragm returns to the closed position and light no longer is allowed to pass through and therefore is not detected by the phototransistor.