39results about How to "Decrease the filling factor" patented technology

A method and system for generating a bloom filter by mapping into respective groups each of a plurality of initial keys according to a first hash function and mapping each group hashed key into a bloom filter using k respective hash functions.

An apparatus is provided which integrates sensor functionality with an active matrix display such as an AMLCD. A conventional active matrix 6 of LCD pixels 10 is provided with standard display source and gate drivers 4 and 5. The display source driver 4 supplies data signals for generating the required pixel response to column electrodes 12 which are also connected to an output arrangement 19 including sense amplifiers 20. During a display phase of operation, the AMLCD operates conventionally with the matrix 6 being refreshed a row at a time and frame by frame. Between frames, the sense amplifiers 20 are enabled and the matrix 6 is again scanned by the gate driver 5. The characteristics of each pixel represent an external stimulus which is sensed by the relevant sense amplifier 20 and supplied at an output 23 of the arrangement.

A programmable spatial filter for use as a Fourier plane filter in dark field wafer inspection systems, based on the use of MEMS (Micro-Electro-Mechanical Systems) devices. In comparison with prior art systems, especially those using LCD's, the use of MEMS devices provide a number of potential advantages, including good transmission in the UV, a high fill factor, polarization independence and a high extinction ratio since the shutter is opaque when closed. The MEMS devices can be flap devices, artificial eyelid, or double shutter devices. Additionally, a novel spatial light modulator (SLM) assembly having a double layer of SLM arrays is described, in which the fill factor is increased in comparison to a single layer SLM using the same devices, by positioning the dead areas of the elements of both arrays collinearly in the modulated beam. This SLM assembly can be implemented using pixelated LCD arrays or MEMS arrays.

Optical fiber cable with a central strength member structure and with four or five buffer tubes each loosely receiving optical fiber ribbons in a stack and is disposed around and contacting the strength member. The optical fiber count is in excess of 1000 and the fill factor is not greater than 85% in a two inch duct. Each buffer tube contacts adjacent buffer tubes, and the buffer tubes are encircled by a jacket. Optionally, spaces bounded by pairs of buffer tubes and the jacket have optical fibers therein and can also include flexible longitudinal strength members and/or water blocking filaments. Preferably, the strength member structure and/or the buffer tubes are encircled by a water blocking tape. The optical fiber ribbons in the stacks can include different numbers of fibers, and hence, can have different width.

A cylinder liner for insert casting and a method for manufacturing the cylinder liner are provided. The cylinder liner and the method are applied to cylinder blocks and improve the adherence and the bonding strength with a cylinder block material in a favorable manner. The cylinder liner satisfies the following requirements: (i) the height of projections 1P is in a range between 0.5 mm and 1.0 mm, inclusive; (ii) the number of the projections 1P is in a range between 5 and 60, inclusive, per cm² on the outer circumferential surface; (iii) the area ratio of regions each encircled by a contour line of a height of 0.4 mm is in a range between 10% and 50%, inclusive; (iv) the area ratio of regions each encircled by a contour line of a height of 0.2 mm is in a range between 20% and 55%, inclusive; (v) the region each encircled by a contour line of the height of 0.4 are independent from each other; and (vi) the area of the regions each encircled by a contour line of the height of 0.4 mm is in a range between 0.2 mm² and 3.0 mm², inclusive.

A high-concentration multi-junction solar cell and method for fabricating same is provided. The high-concentration multi-junction solar cell comprises a top cell, an intermediate cell, a bottom cell and two tunneling junctions connecting the top cell and intermediate cell and the intermediate cell and bottom cell. The emitter layers of the top and intermediate cells both employ the graded doping concentrations and have high open circuit voltage and short circuit current. The top cell emitter layer is over several hundred nanometers thicker than that of the traditional multi-junction cell so as to decrease the whole series resistance of the multi-junction cell, improve the fill factor, and gain higher photoelectric conversion efficiency.

The invention provides an oxide sintered compact 2 composed of a crystal phase which consists of a bixbite-type oxide phase and a perovskite-type oxide phase, or a bixbite-type oxide phase, the crystal phase having indium, tin, strontium and oxygen as the constituent elements, and the indium, the tin and the strontium contents satisfying formulas (1) and (2) in terms of atomic ratio, as well as a sputtering target. There are further provided an oxide transparent conductive film formed using the sputtering target, and a solar cell.

Sn/(In+Sn+Sr)=0.01-0.11  (1)

Sr/(In+Sn+Sr)=0.0005-0.004  (2)

[In formulas (1) and (2), In, Sn and Sr represent indium, tin and strontium contents (atomic percent), respectively.]

The invention relates to the technical field of building foundation engineering construction, in particular to a full-rotating drill and hydraulic vibration hammer synergetic shaft sinking method. Thefull-rotating drill and hydraulic vibration hammer synergetic shaft sinking method comprises the following steps: 1, pile position setting out is conducted; 2, a orifice casing is inserted and struck; 3, a casing bottom pipe and a steel casing are mounted; 4, a full-rotating drill is mounted; 5, a hydraulic vibration hammer is mounted; 6, test-run of a machine is conducted; 7, a mortar conveyingpipe 90 is mounted, and the casing bottom pipe continues being drilled; and 8, concrete is poured, specifically, when drilling is conducted to a preset depth, hole cleaning and acceptance check are conducted, then a reinforcement cage is lowered in to a hole, then the concrete is poured, and the steel casing is pulled out from the hole, and a pile is formed. According to the full-rotating drill and hydraulic vibration hammer synergetic shaft sinking method, drilling into a very complex formation can be conducted, the drilling speed can be increased by four times or above, during hole drilling,because of advanced support of the steel casing, the situation of landslide of a hole wall or orificeis avoided, thus the pouring amount of the concrete can be decreased to the minimum, that is, thefilling coefficient is the minimum, and thus the material cost is saved.

An X-ray detection device includes an X-ray detection panel having a plurality of gate-lines, a plurality of data-lines, a plurality of bias-lines, a plurality of pixel circuits, a gate driving circuit that sequentially provides a gate signal to the pixel circuits via the gate-lines when an X-ray detecting operation is performed, a readout integrated circuit that performs a readout operation of a detection signal that is output from the pixel circuits via the data-lines when the X-ray detecting operation is performed, a bias driving circuit that provides a forward-bias voltage or a reverse-bias voltage to the pixel circuits via the bias-lines, and an operation control circuit that controls a forward-biasing operation and an initializing operation to be simultaneously performed on the pixel circuits.

A nanophotolithography mask includes a layer of an electrically conductive optically opaque material deposited on a mask substrate in which regular arrays of sub-wavelength apertures are formed. The plasmonic excitation in the layer perforated with the sub-wavelength apertures arrays under the light incident on the mask produces high resolution far-field radiation patterns of sufficient intensity to expose a photoresist on a wafer when propagated to the same. The fill-factor of the mask, i.e., the ratio of the total apertures area to the total mask area, may lead to a significant increase in mask manufacturing throughput by FIB or electron beam “writing”. The mask demonstrates the defect resiliency and ability to imprint coherent clear features of nano dimensions and shapes on the wafers for integrated circuits design.

The invention discloses a strong karst area cast-in-place pile construction method based on a rotary drilling hole forming manner. The cast-in-place pile construction method is characterized by comprising the steps of: (1) drilling into the surfaces of a karst layer and a gravel soil layer by adopting a conventional bit; (2) in combination with the basic theory of rock-soil mechanics, finding out a mathematic relation between an optimized value of inclination of a multi-stage alloy pilot roller bit and a coefficient of sliding friction between a rock-soil material and the interface of the bit; (3) after adopting the conventional bit to dill into the surfaces of the karst layer and the gravel soil layer, changing the conventional bit into the multi-stage alloy pilot roller bit, firstly drilling at high pressure and low speed, and then, after the bit is dilled into the rock for more than 50 cm, drilling at low pressure and high speed until the drilling depth or hole depth satisfies design requirements; (4) optimizing the design of mud specific weight in stages for preventing pile holes from collapsing and improving the bearing capacity of pile foundations; and (5) handling sudden accidents, such as fracture of drilling rods, bit falling, bit burying, fracture of cone palms in holes, accidental falling of cone palms and other small operation tools and the like, in the drilling process by adopting a drill tool overshot and a falling object salvage skip.

A CMOS image sensor unit and a method for fabricating the same are described. The image sensor unit includes a photodiode, a transfer gate, a reset gate, a source follower gate, a floating drain region between the transfer gate and the reset gate, and a PIP capacitor. The lower poly-Si electrode of the PIP capacitor is electrically connected with the floating drain region and the source follower gate to also serve as an interconnect between the floating drain region and the source follower gate. The fabrication method includes forming contact plugs on the floating drain region and the source follower gate, and then forming a PIP capacitor whose lower poly-Si electrode is connected with each contact plug.

The invention discloses a construction method of a cast-in-place pile, and aims to solve the technical problem that in the prior art, due to the fact that the filling coefficient of the side wall in apile hole of a cast-in-place pile is large, concrete leaks too much to the side wall in the pile hole, and the strength of the cast-in-place pile is reduced. The construction method comprises the following steps: driving a casing protection barrel underground at the ground position where the cast-in-place pile is designed, and digging out soil and sand in the casing protection barrel; then vibrating and extruding a vibration guide downwards along the casing protection barrel to penetrate into the underground through a hydraulic vibration hammer, and then taking out the vibration guide to supplement soil and compact the soil; and then, placing a reinforcement cage in the pile hole, pouring concrete into the middle of the pile hole and pulling out the casing protection barrel, completely pulling out the casing protection barrel after the pouring of the concrete is finished, and finishing the construction of the cast-in-place pile after the concrete is completely solidified. According tothe construction method, the filling coefficient of the periphery of the side wall in the pile hole can be greatly reduced, excessive outward leakage of concrete in the pile hole is prevented, and the strength of the cast-in-place pile is improved.

The invention discloses a karst stratum rotary drilling anti-deviation drilling tool and a drilling method thereof, and relates to the technical field of rotary drilling. The karst stratum rotary drilling anti-deviation drilling tool comprises a verticality keeping barrel, a rotary drilling bit, a connecting pin, a bit fishing plate and a reinforcing assembly, wherein the rotary drilling bit comprises a drilling slag barrel and a bit square sleeve arranged in the middle of the top end of the drilling slag barrel, and the bit square sleeve is provided with a first connecting pin hole; the drillbit square sleeve is used for being connected with a rotary drilling rod through a connecting pin, the verticality keeping barrel is fixed to the upper end of the drilling slag barrel, the verticality keeping barrel and the drilling slag barrel are fixedly connected with the reinforcing assembly, and a working hole is formed in the lower end of the side wall of the verticality-keeping barrel andcorresponds to the first connecting pin hole in position; and the bit fishing plate is arranged at the top of the verticality keeping barrel and is an annular steel plate, and an annular protrusion extending downwards is arranged on the inner edge of the annular steel plate. The karst stratum rotary drilling anti-deviation drilling tool and the drilling method are suitable for being applied to drilling of seriously uneven stratums such as karst development areas or foundation pit supporting and piling construction, and the drilling perpendicularity can be guaranteed.

The invention relates to a drill bit which comprises a drill bit connecting part at the upper end, a drill bit shaft part on the middle part and a drill bit tip part at the bottom end, wherein a connecting hole is formed on the drill bit connecting part; the drill bit tip part has a conical structure; at least one first bulge edge is longitudinally arranged on an outer wall of the drill bit tip part; the first bulge edge extends to the tip part from the upper end of the drill bit tip part; at least one rotating head is longitudinally arranged on the outer wall of the first bulge edge. The drill bit can solve the problems of the present rotating drill bit that the well hole wall is unstable and cannot be drilled and the pile-forming quality is unqualified even if the hole is drilled in the rotary excavating bored pile construction in a high backfilling area.