In at least some embodiments, a pulsed-electric drilling system includes a bit that extends a borehole by detaching formation material with pulses of electric current, and a drillstring that defines at least one path for a fluid flow to the bit to flush detached formation material from the borehole. A feed pipe transports at least a part of said fluid flow to said path, and the feed pipe is equipped with a cooling mechanism to cool the fluid flow. The use of a cooled fluid flow may enhance the performance of the pulsed-electric drilling process.

Mass spectrometers and methods for measuring information about samples using mass spectrometry are disclosed.

An example particle accelerator includes a coil to provide a magnetic field to a cavity; a cryostat comprising a chamber for holding the coil, where the coil is arranged in the chamber to define an interior region of the coil and an exterior region of the coil; magnetic structures adjacent to the cryostat, where the magnetic structures have one or more slots at least part-way therethrough; and one or more magnetic shims in one or more corresponding slots. The one or more magnetic shims are movable to adjust a position of the coil by changing a magnetic field produced by the magnetic structures.

An exemplary embodiment of the present invention provides an induced-draft injection system comprising an injection line in fluid communication with a duct under negative pressure, a particulate storage containing particulate, and a feeder receiving the particulate from the particulate storage and feeding the particulate to the injection line. The negative pressure in the duct supports the transportation of at least a portion of the particulate through the injection line and into the duct. Inside the duct, a binding portion of the particulate is bound to a portion of mercury in a flue gas passing through the duct, thus enabling a portion of the mercury to be filtered out of the flue gas.

The burner preferably exclusively burns substantially explosible solid fuels and preferably has instant ON-OFF thermostat control, wastes no energy preheating the enclosure or external air supply, achieves stable combustion the moment the powder-air mix is ignited in our burner, is used in the upward vertical mode except for oil burner retrofits, burns a solid fuel in a single-phase regime as if it were a vaporized liquid or gas, is designed to complete combustion within the burner housing itself rather than in a large, high temperature furnace enclosure which it feeds, has an ultra-short residence time requirement, is a recycle consuming burner with self-contained management of initially unburned particles, is much smaller, simpler and lower cost, has a wider dynamic range/turndown ratio, is more efficient in combustion completeness and thermal efficiency, and operates with air-fuel mix approximately at the flame speed.

This disclosure relates to electroconductive paste formulations useful in solar panel technology. In one aspect, the disclosure relates to an inorganic reaction system for use in electroconductive paste compositions, wherein the inorganic reaction system comprises a lead containing matrix composition and a tellurium containing matrix composition. In another aspect, the disclosure relates to an electroconductive paste composition comprising a conductive metal component, an inorganic reaction system and an organic vehicle. Another aspect of the disclosure relates to a solar cell produced by applying an electroconductive paste composition of the invention to a silicon wafer. Yet another aspect relates to a solar cell module assembled using solar cells produced by applying an electroconductive paste composition to a silicon wafer, wherein the electroconductive paste composition comprises an conductive metal component, an inorganic reaction system and an organic vehicle.

A printing device (100,101) has a first print engine (103, 303, 603, 703), a second print engine (105, 305, 605, 705), and a buffer device (107, 307, 609, 709, 711) disposed between the first (103, 303, 603, 703) and second print engines (105, 305, 605, 705). The buffer (107, 307, 609, 709, 711) is configured to store a variable amount of web substrate (106, 301, 713) received from the first print engine (103, 303, 603, 703) and feed the substrate (106, 301, 713) to the second print engine (105, 305, 605, 705).

A frequency synthesizer for a WLAN transceiver is disclosed that may be used to generate 5.4 GHz and 2.4 GHz signals. The frequency synthesizer may be configured to minimize VCO pulling by using VCO operating frequencies that are not integer multiples of the RF bands. Further, the frequency synthesizer may be configured to minimize interference with other frequency bands used by existing wireless systems.

According to some embodiments, a method and apparatus are provided to vary a clock signal frequency for a first time period between a lower limit of a range of problematic frequencies and a frequency lower than the lower limit, and vary the clock signal frequency for a second period of time between an upper limit of the range of problematic frequencies and a frequency greater than the upper limit.

In various embodiments, systems and methods for generating high-precision pulse-width modulation include a delay-locked loop comprising multiple delay units having time-variable delays, control logic for selecting a subset S of the multiple delay units to thereby generate a time-invariant shift amount having a precision finer than that of a system clock and circuitry for applying the shift amount to rising and falling edges of a pulse-width modulation waveform to thereby generate a high-precision pulse-width modulation waveform.

Systems and methods for operating with oscillators configured to produce an oscillating signal having an arbitrary frequency are described. The frequency of the oscillating signal may be shifted to remove its arbitrary nature by application of multiple tuning signals or values to the oscillator. Alternatively, the arbitrary frequency may be accommodated by adjusting operation one or more components of a circuit receiving the oscillating signal.

Recessed adhesive binding systems. One system can include a plurality of sheets arranged in a stack, each of the plurality of sheets having a front surface, a rear surface, and an exposed edge. At least one of the front surface and the rear surface of each of the plurality sheets can include at least one recessed adhesive positioned adjacent the exposed edge to form an at least partially exposed recessed adhesive, which can be selectively activated. The rear surface of a first sheet in the plurality of sheets can be positioned adjacent the front surface of a second sheet in the plurality of sheets, or vice versa, and the exposed edges of the plurality of sheets can be staggered, such that the exposed edge of the second sheet extends further outwardly from the stack than the exposed edge of the first sheet in the stack.

A radio frequency system includes a power amplifier that outputs a radio frequency signal to a matching network via a transmission line between the power amplifier and the matching network. A sensor monitors the radio frequency signal and generates first sensor signals based on the radio frequency signal. A distortion module determines a first distortion value according to at least one of (i) a sinusoidal function of the first sensor signals and (ii) a cross-correlation function of the first sensor signals. A first correction circuit (i) generates a first impedance tuning value based on the first distortion value and a first predetermined value, and (ii) provides feedforward control of impedance matching performed within the matching network including outputting the first impedance tuning value to one of the power amplifier and the matching network.

A power amplifier module includes a power amplifier including a GaAs bipolar transistor having a collector, a base abutting the collector, and an emitter, the collector having a doping concentration of at least about 3×1016 cm−3 at a junction with the base, the collector also having at least a first grading in which doping concentration increases away from the base; and an RF transmission line driven by the power amplifier, the RF transmission line including a conductive layer and finish plating on the conductive layer, the finish plating including a gold layer, a palladium layer proximate the gold layer, and a diffusion barrier layer proximate the palladium layer, the diffusion barrier layer including nickel and having a thickness that is less than about the skin depth of nickel at 0.9 GHz. Other embodiments of the module are provided along with related methods and components thereof.

Systems and methods are provided for generating an amplitude modulation signal to a switchmode power amplifier. A DC to DC switch is configured to receive a DC input voltage and to provide a DC output voltage. A low dropout regulator is configured to provide the amplitude modulation signal according to a modulation control signal received by the low dropout regulator. A control circuit is configured to establish a nominal operating power level for the power amplifier via the amplitude modulation signal and to maintain a minimum voltage difference between the DC output voltage and the low dropout regulator output. A modulator control circuit is configured to provide the modulation control signal to the low dropout regulator. The modulator control circuit provides the transition from a high amplitude to a low amplitude and a transition from the low amplitude to the high amplitude at configurable first and second slopes, respectively.

Systems and methods are provided for amplifying multiple input signals to generate multiple output signals. An example system includes a first channel, a second channel, and a third channel. The first channel is configured to receive one or more first input signals, process information associated with the one or more first input signals and a first ramp signal, and generate one or more first output signals. The second channel is configured to receive one or more second input signals, process information associated with the one or more second input signals and a second ramp signal, and generate one or more second output signals. The first ramp signal corresponds to a first phase. The second ramp signal corresponds to a second phase. The first phase and the second phase are different.

A device for forming containers from heated parisons of thermoplastic material, which includes a heating section and a blow molding unit provided with at least one blow molding station. The parisons are held along at least a portion of a transport path between the heating section and the blow molding unit by a carrying element, which has a head that can be inserted into a mouth section of a parison and which includes at least two positionable clamping elements. At least one of the clamping elements is positioned in a recess provided on a side of the head relative to a longitudinal axis of the carrying element. The recess has upper and lower sliding surfaces that extend obliquely relative to the longitudinal axis for acting on the clamping element. The upper head part and the lower head part are braced relative to each other by at least one spring.

This disclosure provides for pressure limiting a hydraulic system to a desired pressure value by a particular circuit by controlling and closing the compensator when the desired pressure setting is achieved. Closing the compensator will reduced the pressure head and flow in the circuit resulting in improved efficiency. One illustrated embodiment of the disclosure provides a relief valve in the pilot signal for a compensator. The method relates to limiting the pressure on an open side of the compensator, such that the pressure on the other side closes the compensator thereby limiting the pressure and also flow in the hydraulic circuit. In other words, the pressure on the open side is limited by the relief valve. Thus, the pressure on the other side increases thereby regulating the flow and pressure through the compensator. In another embodiment of the disclosure, instead of reducing the pressure on the open side, the pressure on the closed side is increased, thereby controlling the flow and pressure of the hydraulic circuit. The pressure can be increased by a pump or any other suitable mode.

High pressure pump systems with reduced pressure ripple for use with waterjet systems and other systems are described herein. A pump system configured in accordance with a particular embodiment includes four reciprocating members operably coupled to a crankshaft at 90 degree phase angles. The reciprocating members can include plungers operably disposed in corresponding cylinders and configured to compress fluid (e.g., water) in the cylinders to pressures suitable for waterjet processing, such as pressures exceeding 30,000 psi.

A piston engine may include a heat pipe capable of transferring heat away from a portion of the piston engine such as a combustion section. The heat pipe may be included as part of a piston assembly, a cylinder, or both. The heat pipe may be filled with a suitable heat pipe fluid that may undergo a phase change such as, for example, water, ethanol, ammonia, sodium, other fluids or combinations thereof. Boiling and condensing of the fluid within the heat pipe may utilize the latent heat of the fluid during heat transfer. Multiple heat pipes may be used in some instances.

The invention is an accumulator system in which multiple elastomeric accumulators are attached in series or parallel in order to generate total differential pressure in excess of that generated in a non-series system. Also disclosed is a “stacked” accumulator system. The system stores energy when the accumulators deform from their original shape in response to the flow of a pressurized fluid. The stored energy is available for use when the fluid is released from the accumulators and the accumulators return to their original shape.

The present invention may be embodied as a compounding system having a chamber assembly defining a working chamber; a shaft, a sleeve assembly, and a plurality of arms. The sleeve assembly has first and second sleeve members each defining at least one arm opening and adapted to be arranged in a first configuration in which the first and second sleeve members are detached from each other and a second configuration in which the first and second sleeve members are secured together around the shaft to support the sleeve assembly on the shaft. Each of the arms is configured to be inserted partly through one of the arm openings when the sleeve assembly is in the first configuration and held in a desired configuration relative to one of the first and second sleeve members when the sleeve assembly is in the second configuration.

Polymerization reactor systems providing real-time control of the average particle size of catalyst system components are disclosed. Methods for operating such polymerization reactor systems also are described.

Separation processes using osmotically driven membrane systems are disclosed generally involving the extraction of solvent from a first solution to concentrate solute by using a second concentrated solution to draw the solvent from the first solution across a semi-permeable membrane. Enhanced efficiency may result from using low grade waste heat from industrial or commercial sources. Pre-treatment and post-treatment may also enhance the osmotically driven membrane processes.

One embodiment of the present invention relates to a method for inflating a chamber within an inflatable avalanche safety system. The method includes providing an inflatable avalanche safety system including an inflatable chamber; receiving a user-triggered action intended to activate the avalanche safety system; transmitting ambient air from an external region to within the inflatable chamber; and inflating the inflatable chamber entirely with the transmitted external ambient air to a particular internal pressure and shape configured to protect the user from burial during an avalanche. The transmission of ambient air within the inflatable chamber may be accomplished with a fan or an electrical component.

A power conversion system has a power converter configured to receive an input voltage signal, convert the input voltage to an output voltage signal, and provide the output voltage signal to a load and a closed loop compensator configured to receive the output voltage signal and a reference voltage signal, the closed loop compensator configured to transmit an error signal indicative of a difference between the output voltage signal and the reference voltage signal. The power conversion system further has a pulse with modulator configured to receive the error signal and modulate a control signal with the error signal to control the output voltage signal, the pulse width modulator configured to transmit the control signal to the power converter and logic configured to receive the error signal and control the closed loop compensator based upon the error signal. A controller observes the error signal characterstics such as peak-to-peak values, frequency and phase and adjust the closed loop controller variables and other power converter system variables in order to improve the dynamic performance and improve stability.

The invention relates to a system for eliminating current surges that includes a first voltage regulator (7) having a current limit programmable to a value (I(limit)) that depends on the value of the intermittent current surges (IO(surge)) required by the intermittent load (3) and the relationship thereof to the work cycle, a second voltage regulator (9), a condenser (4) connected between the first and second regulators (7, 9), that loads when the current is no longer required and that unloads when there is a need for output current to provide current to the second regulator (9) which absorbs the changes in voltage produced by the loading/unloading of the condenser and provides a constant voltage for any value of the required output current surge, independently of voltage changes in the condenser (4), and a control loop between a sensor for the output current provided to the load and an input limit (15) for the input current (II) in the first regulator (7). Thus, the input current (I(limit)) (1) and the output voltage (VLoad) are constant for any value of the output current surge (IO(surge)).

A system has a plurality of spacecraft in orbit around the earth for collecting energy from the Sun in space, using stimulated emission to configure that energy as well defined states of the optical field and delivering that energy efficiently throughout the region of space surrounding Earth.

Systems and methods for activating a down hole tool in a wellbore. A piston is moveable from a first position to a second position for activating the down hole tool. The piston includes a first side exposed to a first chamber, and a second side exposed to a second chamber. A rupture member has a first side exposed to the first chamber and a second side exposed to a third chamber. The rupture member is configured to rupture when a pressure differential between the first chamber and the third chamber reaches a predetermined threshold value, at which point the rupture member allows fluid communication between the first chamber and the third chamber. When the rupture member is intact, the piston is in the first position, and when the rupture member ruptures, the piston moves to the second position and activates the down hole tool.

A stator for a progressive cavity pump comprises a stator housing having a central axis, a first end, and a second end opposite the first end. In addition, the stator comprises a stator liner disposed within the stator housing. The stator liner has a first end and a second end opposite the first end. The first end of the stator liner is axially spaced from the first end of the stator housing. Further, the stator comprises a tag insert positioned in the stator housing between the first end of the stator housing and the first end of the stator liner. The tag insert has a through passage defining a radially inner surface that includes a tag shoulder.

Fluid treatment systems and compositions are provided including (a) at least one material including (1) at least one carboxylic acid functional group and (2) at least one sulfur-containing group selected from the group consisting of sulfonyl functional groups, sulfonate functional groups and mixtures thereof; and (b) at least one friction reducing agent selected from the group consisting of guar gums, polyacrylamides, hydratable cellulosic materials, viscoelastic surfactants, and mixtures thereof. The fluid treatment systems and compositions can be used to treat aqueous systems, for example as fracturing fluids for use in fracturing subterranean formations. Methods for inhibiting formation and/or precipitation of metal oxides in an aqueous composition using the fluid treatment systems or compositions also are provided.

Fluid treatment systems and compositions are provided including (a) at least one material including (1) at least one carboxylic acid functional group and (2) at least one sulfur-containing group selected from the group consisting of sulfonyl functional groups, sulfonate functional groups and mixtures thereof; and (b) at least one scale control agent. The fluid treatment systems and compositions can be used to treat aqueous systems, for example as fracturing fluids for treating aqueous compositions found in subterranean formations. Methods for inhibiting formation and/or precipitation of calcium salts in an aqueous composition using the fluid treatment systems or compositions also are provided.

A method for creating laboratory-scale reactive distillation apparatus from provided modular components is described. At least two types of modular distillation column stages are provided. A first type of modular stage comprises two physical interfaces for connection with a respective physical interface of another modular stage. A second type modular stage comprises one such physical interface. At least one type of tray is provided for insertion into the first type of modular stage. A clamping arrangement is provided for joining together two modular stages at their respective physical interfaces for connection to form a joint. The invention provides for at least three modular stages can be joined. At least one sensor or sensor array can be inserted into each modular stage. At least one controllable element can be inserted into each modular stage. The invention provides for study of traditional, advanced, and photochemical types of reactive distillation.

Methods and systems are provided for air conditioning, capturing combustion contaminants, desalination, and other processes using liquid desiccants.

One exemplary embodiment can be a system for separating a plurality of naphtha components. The system can include a column, an overhead condenser, and a side condenser. Generally, the column includes a dividing imperforate wall with one surface facing a feed and another surface facing at least one side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Typically, the overhead condenser receives an overhead stream including a light naphtha from the column. Usually, a side condenser receives a process stream from the column and returns the stream to the column to facilitate separation. A cooling stream may pass through the overhead condenser and then the side condenser.

The method includes subjecting the pozzolans in crushed state to a high energetic mechanical processing by grinding in a grinding equipment, whereby the pozzolan particles receive mechanical impulses, and the grinding is carried out for a predetermined time resulting in a compressive strength of a 2 inch side cube of mortar having 80% Portland cement and 20% natural pozzolan in a ratio of 1:2.75 to standard sand and in addition water required to obtain a flow of the mortar according to American standard ASTM C 109, which has been properly compacted under vibration and hardened at +20° C. in sealed condition, which after 28 days is ≧75% of the compressive strength of a 2 inch side cube, treated as the cube, of a mortar having a ratio of Portland cement:sand of 1:2.75 and water corresponding to 48.5% of the weight of Portland cement.

Systems and methods for rig assembly and for erecting a mast of a rig and such systems with roller apparatus to facilitate movement of a mast section from a mover. In a first embodiment, the method includes erecting a rig mast section on a substructure, the substructure including a first substructure box spaced-apart from a second substructure box, the first substructure box comprising a first upper box above a first lower box and the second substructure box comprising a second upper box above a second lower box.

Embodiments of the present disclosure generally pertain to hoisting methods for vehicles, such as UH-60 Black Hawk helicopters (“Black Hawks”). An external hoist arm system in accordance with an exemplary embodiment of the present disclosure is configured to be temporarily mounted to the outside of a vehicle. The hoist arm system is further configured to support a hoist and position the hoist above an external door of the vehicle. A rotatable adjustment member is used to adjust an angular position of the hoist relative to the vehicle.

Rail-mounted lift systems are disclosed. In one embodiment, the lift system includes a rail having at least one conductor positioned on an upper interior surface of the rail. A carriage may be slidably disposed in the rail for relative movement to the rail. The carriage generally includes a carriage body, at least one pair of support wheels rotatably coupled to the carriage body and slidably engaged with the rail, and a conductor truck comprising at least one conductive roller rotatably attached to the conductor truck. The conductor truck may be mounted to the carriage body with a biasing member upwardly biasing the conductive roller into rolling engagement with the at least one conductor. A lift unit may be coupled to the carriage body and includes a motor paying out and taking up a lifting strap. The lift unit is electrically coupled to the at least one conductive roller.

A substrate of a lab-on-a-chip system has two adjacent recesses, one serving as a flow channel and the other one being filled with an elastomer compound. In a first state, the elastomer compound and the substrate delimit the flow channel in a section. In a second state, the elastomer compound takes up the space in the recess in the substrate along a cross-section of the flow channel, thereby completely closing the flow channel. The substrate and the elastomer compound may be produced by injection molding techniques.

A diaphragm sealed flow cavity comprises a first body comprising a support surface, a diaphragm comprising an outer portion that is joined by a weld to the first body, a clamped portion, and an inner portion that is movable along an axis, with the clamped portion of the diaphragm being compressed between the bearing surface and the support surface. The diaphragm sealed flow cavity may include a cylindrical body having a crimped portion for joining the cylindrical body to the first body. The diaphragm sealed flow cavity may also include a member that applies a live load to the clamped portion of the diaphragm. In the exemplary embodiments, the diaphragm sealed flow cavity may be realized as part of a diaphragm flow control valve having a valve body, diaphragm and a housing.

A system and method are disclosed for containing an underwater gas or oil leak. The system and method may include a vortex device comprising a vortex chamber, a high pressure inlet tangentially engaging the vortex chamber, a low pressure inlet axially engaging the vortex chamber, and a low pressure outlet axially engaging the vortex chamber opposite the low pressure inlet. The vortex device may be positioned underwater proximate an underwater leak. A vortex may be generated within the vortex device. The vortex device may then collect a leak flow issuing from the underwater leak. The vortex device may collect the leak flow via the low pressure inlet, the high pressure inlet, or both.

A medical balloon with a variable diameter that is reinforced with continuous fibers woven to form a fabric with a varying number of layers and fiber densities. Portions of the balloon having a relatively smaller diameter are reinforced with a fabric having a reduced fiber density and an increased number of layers to facilitate the placement of the layers. The fabric also includes a braiding pattern that facilitates the transition from a single layer fabric to a multiple layer fabric. Also described is a manufacturing method for the braiding and layering.

A three-dimensional preform, composite components formed with the preform, and processes for producing the preform and composite materials. The three-dimensional preform includes first and second sets of tows containing filaments. Each tow of the first set has a predetermined polygonal cross-sectional shape and is embedded within a temporary matrix. The preform is fabricated from the first and second sets of tows, in which the second set of tows are transverse to the first set of tows, adjacent tows of the second set are spaced apart to define interstitial regions therebetween, and the polygonal cross-sectional shapes of the first set of tows are substantially congruent to the cross-sectional shapes of the interstitial regions so as to substantially fill the interstitial regions.

A system for making braided barbed sutures includes a filament winding assembly, and a guide assembly including at least one barbed insert dispenser opening defining a passageway for orienting a barbed insert. The guide assembly is adapted to dispense at least one barbed insert from the dispenser opening into the filament winding assembly for winding a plurality of filaments around the at least one barbed insert for making a braided barbed suture. The passageway of the dispenser opening is adapted to allow longitudinal movement of the barbed insert relative to the passageway while simultaneously preventing twisting movement of the barbed insert relative to the passageway. As the barbed insert is being dispensed, the barbed insert dispenser opening is selectively rotatable for imparting rotation to the barbed insert as the filaments are wound about the barbed insert. The passageway may be an elongated slit having a greater width than height.

A system includes a communication module and a determination module. The communication module is configured to be located onboard a vehicle configured to travel along a route including plural sub-routes. The communication module is configured to receive route occupancy information from an off-board wayside module disposed along the route. The route occupancy information corresponds to a presence or absence of vehicular traffic on each sub-route within a range of a route detection system operably coupled to the wayside module. The determination module is configured to be located onboard the vehicle, and to obtain position information from one or more onboard detection units disposed onboard the vehicle. The determination module is configured to determine a particular sub-route on which the vehicle is disposed using a comparison of the position information obtained from the one or more onboard detection units and the occupancy information received from the off-board wayside module.

A system includes a determination module and a communication module. The determination module is configured to be located onboard a first vehicle configured to travel along a first route including a crossing corresponding to an intersection of the first route with a second route. The determination module is configured to be communicatively coupled with a remote crossing module. The determination module is configured to determine, based on a speed of the first vehicle, timing information corresponding to a time at which the first vehicle will travel proximate to the crossing on the first route. The communication module is configured to transmit the timing information to the remote crossing module. The timing information includes a reference time configured as an absolute time corresponding to a time for impeding travel of a second vehicle along the second route through the crossing.

An insulated concrete form including of first and second spaced sidewalls forming a cavity therebetween, said sidewalls having an inside surface and interconnected by a plurality of form ties, and a form insert made of an insulative material positioned adjacent the inside surface of at least one sidewall which thereby increases the R-value of the resulting structure.

A curved surface forming device for an adjustable segmented mold board with square rams, consisting of an upper group and a lower group of adjustable molds (4) whose height can be adjusted, and a loading mechanism. The adjustable molds (4) are arranged in the loading mechanism and at least one group of adjustable molds (4) can move up and down under the drive of the loading mechanism. The upper group and the lower group of the adjustable molds (4) are respectively provided with M×N and (M−1)×(N−1) square rams (1) capable of swinging. The upper and the lower square rams (1) are arranged in an interlaced manner in both transverse and longitudinal directions. The square rams (1) are composed of a square plate (a) and the sphere (b) with the pressure imposition surface being a plane or a curved surface. The curved surface forming device can eliminate the crumpling and deformation generated in the board punching, reduce dents and improve processing quality.

A system for accelerated manufacturing of concrete modular housing units including a first deck platform including a plurality of exterior movable wall forms. A second deck platform including a plurality of exterior movable wall forms. A first concrete slab is placed on the first deck platform. At least one core including a plurality of core walls placed on the first concrete slab. The exterior movable wall forms of the first deck platform are positioned proximate the core walls to define a wall space there between configured to receive wet concrete and create a first concrete modular housing unit. A second concrete slab is placed on the second deck platform. Wet concrete in the wall space is allowed to set a until it is partially cured and then the at least one core is removed from the first concrete slab and placed on the second concrete slab such that the at least one core can be reused one or more times during a predetermined amount of time to create a least a second concrete modular housing unit while the first concrete modular housing unit is still curing.