https://css-tricks.com/making-dark-theme-switcher-with-postcss/

Suicide attempts common in post-concussion patients, says Dr. Charles Tator of the Canadian Concussion Centre

When carried out in a lab, user experience research is gear heavy. You need technology to record audio, video and the screen of the device under test. In contrast, when carried out in the field, user experience research is more lightweight. Even so, there are a few non-obvious items of kit that I find essential on a field visit.

Cheri has been a student and teacher of Zen for over 35 years. She is the author of over 20 books on Zen, and founded the Mountain View Zen Center and the Zen Monastery Peace Center. Cheri also founded a non-profit dedicated to transforming lives and ending suffering, Living Compassion, whose primary work is the Africa Vulnerable Children Project in Zambia. Ashwini co-facilitates and creates workshops with Cheri. She runs the operations of the two nonprofits that Cheri founded. Her eclectic background includes degrees in physics, business, and computer science to working in advertising, an investment bank, a social enterprise, and several technology startups in the Silicon Valley. Cheri and Ashwini have co-written multiple books, including their latest Don’t Suffer, Communicate. Today’s episode isn’t just about awareness practice, it’s about a framework for navigating life. A few highlights: Zen isn’t just the practice of keeping things nicely organized, it’s also a spiritual practice largely focused on awareness and where you direct attention. Self-improvement is an endless diss. The very nature of saying we need improvement implies we’re not enough. Cheri and Ashwini share some useful tools to redirect the attention, such as using a recorder to access the wisdom, love, and compassion that is […]

The post You Are Not Your Ego with Cheri Huber and Ashwini Narayanan appeared first on Chase Jarvis Photography.

St-Donat, Bas-St-Laurent, Québec

St-Donat, Bas-St-Laurent, Québec

St-Donat, Bas-St-Laurent, Québec

We examine Chern-Simons theory as a deformation of a 3-dimensional BF theory that is partially holomorphic and partially topological. In particular, we introduce a novel gauge that leads naturally to a one-loop exact quantization of this BF theory and Chern-Simons theory. This approach illuminates several important features of Chern-Simons theory, notably the bulk-boundary correspondence of Chern-Simons theory with chiral WZW theory. In addition to rigorously constructing the theory, we also explain how it applies to a large class of closely related 3-dimensional theories and some of the consequences for factorization algebras of observables.

Our staff of reporters and photographers at the Inlander has been working tirelessly to cover the coronavirus pandemic and all of its implications for the Inland Northwest — on jobs, schools, employment, the restaurant industry, arts organizations, hospitals and much, much more. However, we’ve also tapped into a boundless resource that is our region’s community of writers, and in recent days they’ve shared with Inlander readers an awe-inspiring series of essays and stories that has left us inspired, hopeful, heartbroken and more than a little grateful.…

The invention discloses an improved multistage fischer tropsch process scheme for the production of hydrocarbon fuels comprising feeding gaseous phase syngas and liquid stream hydrocarbons in a counter current manner such as herein described into the reaction vessel at a number of stages containing reaction catalysts; wherein fresh syngas enters into the stage where the product liquid stream leaves and the fresh liquid stream enters into the stage where the unreacted syngas leaves; wherein further the temperature of each stage can be controlled independently. More particularly the invention relates to improving the heat release in different reactors, product selectivity and reactor productivity of FT reactors.

The present invention pertains to a process for carrying out a high-speed stop in a Fischer-Tropsch process which comprises providing a feed to a fixed bed reactor comprising a Fischer-Tropsch catalyst, the reactor being at reaction temperature and pressure, and withdrawing an effluent from the reactor, wherein the high-speed stop is effected by blocking provision of feed to the reactor and simultaneously blocking the withdrawal of effluent from the reactor.

A method of producing an alumina-supported catalyst for use in a Fischer-Tropsch synthesis reaction, which comprises: calcining an initial γ-alumina support material at a temperature of at least 550° C. to produce a modified alumina support material; impregnating the modified alumina support material with a source cobalt; calcining the impregnated support material at a temperature of 700° C. to 1200° C., and activating the catalyst.

A method for producing a gas comprising at least 80 vol % carbon monoxide from a Fischer-Tropsch off-gas comprises: (1) feeding Fischer-Tropsch off-gas through a column comprising an adsorbent bed at high pressure and discharging effluent; (2) reducing the pressure in the column and the bed slightly; (3) rinsing the column and the adsorbent bed with methane or a mixture of methane and carbon dioxide; (4) reducing the pressure of the column and adsorbent bed to a low pressure; (5) rinsing the column and adsorbent bed with a mixture of hydrogen and nitrogen; (6) pressurizing the column and adsorbent bed to a high pressure using a mixture of hydrogen and nitrogen. The product stream obtained in step (3) comprising at least 80 vol % carbon monoxide can be sent as feed to a Fischer-Tropsch reaction. In an embodiment, a gas comprising at least 80 vol % hydrogen is also produced.

Iron/carbon (Fe/C) nanocomposite catalysts are prepared for Fischer-Tropsch synthesis reaction. A preparation method includes steps of mixing iron hydrate salts and a mesoporous carbon support to form a mixture, infiltrating the iron hydrate salts into the carbon support through melt infiltration of the mixture near a melting point of the iron hydrate salts, forming iron-carbide particles infiltrated into the carbon support through calcination of the iron hydrate salts infiltrated into the carbon support under a first atmosphere, and vacuum-drying the iron-carbide particles after passivation using ethanol. Using such catalysts, liquid hydrocarbons are produced.

The present invention pertains to a reactor tube comprising a fixed bed of Fischer-Tropsch catalyst particles, wherein the catalyst particles in 5% to 40% of the fixed bed volume at the upstream end have an average outer surface to volume ratio (S/V) in the range of between 3.0 to 4.5 mm−1, and the catalyst particles in the remaining fixed bed volume have an average outer surface to volume ratio (S/V) in the range of between 4.5 to 8.0 mm−1, and wherein the difference between the average S/V of the particles at the upstream end and the average S/V of the particles in the remaining fixed bed volume is at least 0.5 mm−1.

The present invention provides a process for producing a hydrocarbon oil by performing a Fischer-Tropsch synthesis reaction using a reactor for a Fischer-Tropsch synthesis including a reaction apparatus having a slurry containing catalyst particles and a gaseous phase located above the slurry to obtain a hydrocarbon oil, wherein the Fischer-Tropsch reaction is performed while controlling a temperature of the slurry so that a difference T2−T1 between the average temperature T1 of the slurry and a temperature T2 at the liquid level of the slurry in contact with the gaseous phase is 5 to 30° C.

The invention pertains to a reactor tube comprising a fixed bed of Fischer-Tropsch catalyst particles, wherein the catalyst particles in 5%-40% of the fixed bed volume at the upstream end have an average outer surface to volume ratio (S/V) of between 3.0 to 4.5 mm-1, and the remaining catalyst particles have an average S/V of between 4.5 to 8.0 mm-1, and wherein the difference between the average S/V of the particles at the upstream end and the remaining fixed bed volume is at least 0.5 mm-1. Additionally the fixed bed volume at the upstream end shows a full-bed apparent catalytic activity per volume unit lower than the full-bed apparent catalytic activity per volume unit in the remaining fixed bed volume and/or the weight of catalytically active metal per weight unit at the upstream end is more than 70% lower than in the remaining fixed bed volume.

A method and an apparatus is disclosed that uses a gas lift tubing arrangement to produce synthetic hydrocarbon related products. Using the Fischer Tropsch process as an example, the tubing is packed with a suitable catalyst and then hydrogen and carbon monoxide are injected into the top of the tubing in a fashion similar to a gas lift process. As the gases travel past the catalyst, synthetic hydrocarbons are formed and heat is rejected. The synthetic hydrocarbons and water flow out of the bottom of the tubing and travel up the annulus to the surface. In some embodiments, this process is carried out in a producing well or a in producing riser. In a producing well or a producing riser, the production from the well which flows up the annulus cools the synthetic hydrocarbon derived products. In additional and alternate embodiments, this process can be used in non-flowing wells.

A method and an apparatus is disclosed that uses a gas lift tubing arrangement to produce synthetic hydrocarbon related products. Using the Fischer Tropsch process as an example, the tubing is packed with a suitable catalyst and then hydrogen and carbon monoxide are injected into the top of the tubing in a fashion similar to a gas lift process. As the gases travel past the catalyst, synthetic hydrocarbons are formed and heat is rejected. The synthetic hydrocarbons and water flow out of the bottom of the tubing and travel up the annulus to the surface. In some embodiments, this process is carried out in a producing well or a in producing riser. In a producing well or a producing riser, the production from the well which flows up the annulus cools the synthetic hydrocarbon derived products. In additional and alternate embodiments, this process can be used in non-flowing wells.

The disclosed invention relates to a process for conducting a Fischer-Tropsch reaction, comprising flowing a reactant mixture comprising fresh synthesis gas and tail gas in a microchannel reactor in contact with a catalyst to form at least one hydrocarbon product, the catalyst being derived from a catalyst precursor comprising cobalt and a surface modified catalyst support.

Disclosed are hybrid Fischer-Tropsch catalysts containing cobalt deposited on hybrid supports. The hybrid supports contain an acidic zeolite component and a silica-containing material. It has been found that the use of the hybrid Fischer-Tropsch catalysts in synthesis gas conversion reactions results in high C5+ productivity, high CO conversion rates and low olefin formation.

Disclosed is a process for converting a reactant composition comprising H2 and CO to a product comprising at least one aliphatic hydrocarbon having at least about 5 carbon atoms, the process comprising: flowing the reactant composition through a microchannel reactor in contact with a Fischer-Tropsch catalyst to convert the reactant composition to the product, the microchannel reactor comprising a plurality of process microchannels containing the catalyst; transferring heat from the process microchannels to a heat exchanger; and removing the product from the microchannel reactor; the process producing at least about 0.5 gram of aliphatic hydrocarbon having at least about 5 carbon atoms per gram of catalyst per hour; the selectivity to methane in the product being less than about 25%. Also disclosed is a supported catalyst comprising Co, and a microchannel reactor comprising at least one process microchannel and at least one adjacent heat exchange zone.

The present invention is directed to a process for the production of hydrocarbon product from two different hydrocarbonaceous feedstocks comprising the steps of preparing a feed syngas having a hydrogen/carbon monoxide [H2/CO] molar feed ratio suitable for Fischer-Tropsch synthesis, wherein the feed syngas is prepared by combining a first syngas having a H2/CO molar ratio below the molar feed ratio and a second syngas having a H2/CO molar ratio above the molar feed ratio; the first syngas is prepared from a liquid hydrocarbon comprising feedstock as the sole source of carbon in a first syngas manufacturing process comprising a non-catalytic partial oxidation step; the second syngas is prepared from a methane comprising feedstock as the sole source of carbon in a second syngas manufacturing process comprising a heat exchange reforming step and an auto-thermal reforming step; and the first and second syngas manufacturing processes are operated in parallel.

The present invention provides a family of dark quenchers, termed Black Hole Quenchers (“BHQs”), that are efficient quenchers of excited state energy but which are themselves substantially non-fluorescent. Also provided are methods of using the BHQs, probes incorporating the BHQs and methods of using the probes.

A device for use in suspending an animal carcass in an elevated condition includes a device body having an upper section which is integral with a lower section by way of a compound bend. The upper section is formed with a protrusion and the lower section includes a plurality of arms. The animal carcass includes a pelvic bone and the device is constructed and arranged to be positionable within the animal carcass such that the protrusion engages the pelvic bone in order to suspend the animal carcass in the elevated condition.

A dispatcher framework to provide non-blocking inter-application communication is disclosed. In various embodiments, a call to a service that is blocking with respect to the service is received from a calling process. The service is called on behalf of the calling process in a manner that does not require the calling process to remain blocked during at least a portion of a time during which the call to the service is performed.

Methods and systems of monitoring events occurring in a computer system are provided. An event monitoring instruction including a condition is parsed, the event monitoring instruction expressed using syntax defined in source code, the parsing resulting in an event channel to monitor and the condition. Then execution of an application is paused. The event channel is monitored until an event occurs on the event channel. Then an event handler for the event is run in response to the event occurring on the event channel. The condition is evaluated to determine whether the condition is satisfied. Execution of the application is resumed in response to the condition being satisfied.

Implementations for exciting two or more modes via modal decomposition of a pulse by a wave launcher are generally disclosed.

A front-end assembly including a deflector and a catcher bracket. The V-shaped deflector is attached to a bumper of a vehicle, a rear leg of the deflector has a distal end disposed adjacent to the frame rail. In a collision, the distal end of the rear leg engages the catcher bracket to reduce intrusion into the passenger compartment of the vehicle.

A toy projectile launcher assembly has the form of a crossbow. The crossbow only launches the safety projectiles that are provided. The launcher body has a handle at a first end and diverging support arms at an opposite second end. An adjustment mechanism is contained within the launcher body for selectively adjusting the length of the launcher body. The crossbow has diverging support arms. Bow arms are attached to the support arms. The bow arms pivot from retracted positions to extended positions when a projectile is loaded into the toy crossbow. The toy crossbow has elastic loops that can only engage specialized safety projectiles with side. Furthermore, the trigger mechanism can only engage the safety projectiles provided with the toy. Projectiles without a specific tab and keyhole cannot be loaded into the toy crossbow.

In some embodiments, a connector attaches to an axle of an archery bow and comprises a cable terminal. The connector comprises a first body portion made from a first material and a second body portion made from a second material different from the first material. The first body portion defines an aperture therethrough arranged to engage the axle. The second body portion has a groove extending around at least a portion of its periphery, forming a teardrop shape. In some embodiments, the connector is configured to snap-fit onto an axle and be removable without tools.

An archery bowstring release has a single jaw for retaining a bowstring within a bowstring hook, in contrast to dual-jaw pincer-type releases. The bowstring hook is situated on a release head which bears a trigger for actuating the jaw and releasing the bowstring, and a release body extends between the release head and a release mount (which can connect the bowstring release to a wrist strap, glove, or other anchor affixed to the user's body). The release head and body are pivotally joined, and when the release is ready to fire, the central axis of the release body, and at least the rear of the release head, have central longitudinal axes which are aligned with the notch in the bowstring hook, and are thus aligned with the bowstring, and are parallel to or in line with the arrow. The release therefore has a comfortable, natural, and intuitive feel during operation.

A toy having a housing; a cover pivotally mounted to the housing for movement between a first position wherein an internal cavity of the housing is covered and a second position wherein access to the internal cavity is provided; a launching mechanism located within the internal cavity; a first projectile configured to be launched from the launching mechanism; a plurality of second projectiles configured to be launched from a plurality of projectile launchers secured to the housing; an actuation mechanism coupled to the cover, the launching mechanism and the plurality of projectile launchers, wherein operation of the actuation mechanism causes the cover to move from the first position to the second position and simultaneously launch the first projectile and the plurality of second projectiles from the launching mechanism and the plurality of projectile launchers.

An archery bow is comprised of at least a riser and two limbs that can be folded into a position forming its own case to protect the limbs, or taken down and reassembled with limbs of various draw weights. When taken down it may also be reconfigured to enable use by an archer with opposite handedness. In its folded state it is highly compact and transportable.

A projectile for launching through the air comprises a body and one or more projecting members integral therewith extending outwardly a distance from the body, which can be hollow or solid. The projectile is formed from an elastomeric material capable of being stretched to energize the projectile for launching. The projecting members are positioned a distance apart from one another and include openings disposed therethrough at distal ends for engaging sections of a launching device. The launching device includes a handle with the sections extending outwardly therefrom to accommodate placement of the projectile openings thereagainst for retaining the projectile before and during launch. The projectile is launched from the device by pulling the body away from the launching device to energize the projectile, and then releasing the energized projectile, causing it to be propelled from the launching device into the air and towards a desired target.

According to an exemplary embodiment, a toy dart launcher comprises a housing defining an interior recess and a launch assembly. The launch assembly is at least partially disposed within the interior recess and comprises: a projectile feed, a slidable frame, and a launch mechanism. The projectile feed is rotatably disposed within the interior recess and comprises a plurality of receiving chambers each adapted to receive one or more projectiles. The slidable frame has at least one engagement finger rotatably disposed thereon, and is movable with respect to the projectile feed so that the at least one engagement finger can engage and move at least one projectile through at least one receiving chamber. The launch mechanism is disposed rearwardly of the projectile feed and is configured to create a pressure differential about the at least one projectile so that the at least one projectile can be launched from the housing.

The present invention relates to the field of electromagnetic rail launchers, and particularly to a rail launcher and an associated projectile-launching process including at least two longitudinal rails connected to a power supply circuit of these two rails, these rails being at least partially surrounded by superconductor elements able to generate a magnetic induction of a direction perpendicular to the plane formed by the rails and located therebetween during the flow of a current therein, launcher wherein the supply circuit includes the superconductor elements.

A universal wrist strap, for connection to a plurality of different bowstring release mechanisms via a plurality of different connecting members, includes a flexible base member adapted to fit around the wrist of a user and a mounting assembly connected to the wrist strap. The flexible base member has first and second arms that converge towards an apex area. The mounting assembly is connected to the apex area and is adapted to receive and retain the plurality of different connecting members.

A dart launcher comprises a housing, a safety arm, and a trigger. The housing includes a launching section configured to receive a dart having a minimum threshold length. The safety arm is movably attached to the housing and extends at least partially across the launching section. The safety arm is positioned so that the dart having the minimum threshold length engages at least a portion of the safety arm upon insertion into the launching section. The trigger is movable with respect to the housing and is operable to cause the dart having the minimum threshold length to launch from the launching section.

The apparatus for mounting at least one dampener and/or stabilizer to an archery bow to absorb shock and vibration realized by an archer upon the release of the archery bow. The present invention provides an elongated support structure releasably connectable to the at least one dampener and/or stabilizer. A releasable fastener is connected to one end of the support structure, and the releasable fastener is releasably connectable to the archery bow such that the support structure is extendible in a cantilevered position relative to the archery bow.

An archery bow vibration dampening and balancing device is attachable to an archery bow by means of an elongated clamp with a housing pivotably interconnected to the elongated clamp opposite the attachment point. A vibration dampening and balancing device is secured in an opening formed in the housing.

An archery stabilizer which, by utilizing a carbon fiber tube or a comparable material in a tube configuration, provides for preloading the tube in compression, thereby effectively increasing the stiffness of the tube. The stabilizer includes weights, and the preloading of the tube compensates for the bending moment applied to the tube by the weights attached to the end of the tube or contained within the tube. In effect, the present invention presents an apparatus and method for loading the tube so as to allow a user to adjust the elastic modulus of the tube.

A voucher machine, particularly an automated teller machine, for the input and output of vouchers such as cash or checks, having a processing section (1) for transporting and processing vouchers to be input and output, is characterized in that the processing section (1) has two processing circuits (5, 6) for processing input vouchers which allows rapid output of vouchers identified as unsuitable for acceptance.

A bow case that includes a body with a bottom, a top, four sides, an internal storage area, at least one removable leg that supports the body in a raised position, and a mounting bracket that removably attaches the leg to the body. Area of a rear side is greater than an area of a front side. Also, left and right sides may be inclined from a rear side to a front side. A bow case that includes a body with a top, a bottom, an internal storage area, and an internal storage cavity, where the bow case body is trapezoidally shaped. The cavity is externally accessible while the body remains closed, and any contents stored in the internal storage area are prevented from exiting the body as the body is rotated in any direction while the body is closed.

The present invention is a shrinker stretcher machine that uses four distinct and separate tool cartridges to perform both shrinking and stretching operations by simply removing, rotating each tool cartridge 180 degrees, and reattaching it in its designated position. Each tool cartridge removably carries a jaw that can be removed and securely replaced with either a shrinker or stretcher jaw to accommodate the operation being performed. Each tool cartridges and jaw is firmly held in place by magnets and interlocking keyed surfaces to properly align and hold the tool cartridges and jaws.

An ice scratcher for attachment to a snowmobile has a first ice scratcher end, a second ice scratcher end opposite the first ice scratcher end, a first coil spring having a first spring axis disposed at or near the first ice scratcher end, a first elongated member having a first end connected to the first coil spring, a second coil spring connected to a second end of the first elongated member, the second coil spring having a second spring axis, and a second elongated member having a first end connected to the second coil spring and a second end at or near the second ice scratcher end. Alternative embodiments of the ice scratcher are disclosed. A snowmobile having the ice scratcher is also disclosed.

A clip 20 is provided on a clip support member 30, and one end of a main link member 53 and one end of a sub-link member 54 are pivotally connected to a first shaft member 51 at the clip 20 side of the clip support member 30 to constitute a reference linkage at the clip 20 side.

Clipping both right and left side edge parts of a sheet or film by right and left pitch-variable clips having flow-directional clip pitches variable along with travel movements, respectively, having positions (AR, AL) for initiation of enlargements of flow-directional clip pitches changed between right clips and left clips, and enlarging flow-directional clip pitches along with travel movements of clips to thereby make an oblique stretch.

A clip support member 30 has a first shaft member 51 cantilevered by guide rollers 56 and 56 for a guiding along a reference rail with a recessed channel 101, the clip support member 30 being provided with a slider 40 having a second shaft member 52 cantilevered by guide rollers 57 and 57 for a guiding along a pitch setting rail 120 with a recessed channel 121, the clip support member 30 supporting a clip 20 at an end thereof, where it has the first shaft member 51, whereto one end of a main link member 53 and one end of a sub-link member 54 are pivotally connected, to constitute a reference linkage at the clip 20 end.