Technologies for controlling degradation of a sensor mote including detecting a trigger event and initiating degradation of at least a portion of the sensor mote in response to the trigger event. The trigger event may be embodied as any type of event detectable by the sensor mote such as a trigger signal, particular sensed data, expiration of a reference time period, completion of a task, and so forth. The sensor mote may imitate the degradation by, for example, controlling a valve to release a chemical stored in the sensor mote or allow a substance into the sensor mote.

An electronic circuit for amplifying signals with two components in phase quadrature, which includes: a feedback amplifier with a feedback capacitor; a switch that drives charging and discharging of the feedback capacitor; an additional capacitor; and a coupling circuit, which alternatively connects the additional capacitor in parallel to the feedback capacitor or else decouples the additional capacitor from the feedback capacitor. The switch opens at a first instant, where a first one of the two components assumes a first zero value; the coupling circuit decouples the additional capacitor from the feedback capacitor in a way synchronous with a second instant, where the first component assumes a second zero value.

The invention provides a method for acquiring fragment ion spectra of substances in complex substance mixtures wherein a trapped ion mobility spectrometer (“TIMS”) is used as the ion mobility separation device coupled to a triple quadrupole mass filter assembly. The fragment ion spectra may be used for the identification of high numbers of proteins in complex mixtures, or for a safe quantification of some substances, by their fragment ion mass spectra in a mass spectrometer with upstream substance separator. TIMS, in particular equipped with parallel accumulation, provides the unique possibility to prolong the ion accumulation duration to find more detectable ion species without decreasing the measuring capacity for fragment ion mass spectra. The high measurement capacity for fragment ion mass spectra permits the repeated measurement of low abundance ion species such as to improve the quality of the fragment ion spectra.

A sensing device includes an array of sensing elements. Each sensing element includes a photodiode, including a p-n junction, and a local biasing circuit, coupled to reverse-bias the p-n junction at a bias voltage greater than a breakdown voltage of the p-n junction by a margin sufficient so that a single photon incident on the p-n junction triggers an avalanche pulse output from the sensing element. A bias control circuit is coupled to set the bias voltage in different ones of the sensing elements to different, respective values that are greater than the breakdown voltage.

The present disclosure relates to vehicle traction apparatus and radiation imaging check systems. One illustrative implementation may comprise two parallel tracks, two sets of traction mechanisms and a driving unit, wherein the tracks are disposed on a ground. The two sets of traction mechanisms may be respectively disposed on the two tracks. Further, the driving unit may be adapted for driving the two sets of traction mechanisms to synchronously move along the two tracks. In some embodiments, each of the two sets of traction mechanisms includes a body, a cantilever, a lifting driving mechanism and a wheel supporting assembly, and may include features such as the body being mounted on the track, the cantilever being disposed parallel to a direction of the tracks, and/or both ends of the cantilever being respectively connected with the lifting driving mechanism and the wheel supporting assembly.

The present disclosure provides a ray calibration device and a working method thereof, and a radiation imaging system and a working method thereof, and belongs to the field of radiation imaging technology. The present disclosure can solve the problems that the existing calibration devices have low calibration efficiency and require relatively large spaces. The ray calibration device of the present disclosure includes a driving part, a cam part and a calibration part, wherein the calibration part is located below the cam part; the driving part is adapted to drive the cam part to rotate; and the cam part is adapted to exert a force on the calibration part to enable the calibration part to move into a ray area downwards.

A human body radiation examining method and system are disclosed. In one aspect, the human body radiation examining method comprises: identifying a person to be examined. The method further comprises retrieving an accumulative radiation dose of the person according to identification result. The method further comprises obtaining a predicted single radiation scanning dose of a human body radiation examining device intended to perform a current radiation examination. The method further comprises calculating a sum value of the accumulative radiation dose of the person and the predicted single radiation scanning dose of the human body radiation examining device. The method further comprises determining whether to perform the current radiation examination on the person according to whether the sum value exceeds a dose limit. In some embodiments, the human body radiation examining system and method can improve the security of the human body radiation examination.

Detectors, a system and a method for detecting ionizing radiation are provided. In some aspects, a detector includes a first layer comprising a first conducting material, and a second layer comprising a second conducting material, wherein at least one of the first layer and second layer is configured to produce secondary particles upon irradiation by an ionizing radiation. The detector also includes a separating layer positioned between the first and second layer configured to transport therebetween at least one of charges associated with the secondary particles and charges produced by the secondary particles, wherein an electric current generated by the charges, and collected between the first and second layer, is indicative of properties the ionizing radiation.

A semiconductor detector includes a plate-shaped semiconductor part, a signal output electrode for outputting a signal provided at one surface of the semiconductor part, a plurality of curved electrodes provided at the one surface of the semiconductor part and which have distances from the signal output electrode that are different from each other, and an arc-shaped collection electrode for collecting an electric charge generated at the semiconductor part. The plurality of curved electrodes are applied with voltage to generate in the semiconductor part a potential gradient in which a potential varies toward the signal output electrode. The collection electrode is located at a part of the semiconductor part between an adjacent pair of curved electrodes. The collection electrode is connected to a curved electrode located a distance from the signal output electrode shorter than a distance between the collection electrode and the signal output electrode among the curved electrodes.

Techniques are described that includes using a memory to store data within a system. The techniques include lowering a supply voltage applied to said memory and ceasing use of the memory to store data within the system. The techniques further include reading values from the memory with the supply voltage being lowered. The techniques further include determining a radiation level from an amount of corrupted ones of the values.

A semiconductor detector for detecting radiation comprises a first semiconductor part in which an electron and a hole are generated by incident radiation; a signal output electrode outputting a signal base on the electron or the hole; and a gettering part gettering impurities in the first semiconductor part. In addition, the semiconductor detector further comprises a second semiconductor part doped with a type of dopant impurities and having dopant impurity concentration higher than that of the first semiconductor part. The second semiconductor part is in contact with the first semiconductor part. The gettering part is in contact with the second semiconductor part and not in contact with the first semiconductor part.

Disclosed are improved methods and structures for actively stabilizing the oscillation frequency of a trapped ion by noninvasively sampling and rectifying the high voltage RF potential at circuit locations between a step-up transformer and a vacuum feedthrough leading to the ion trap electrodes. We use this sampled/rectified signal in a feedback loop to regulate the RF input amplitude to the circuit. By employing techniques and structures according to the present disclosure we are advantageously able to stabilize a 1 MHz trapped ion oscillation frequency to

In an example arrangement an apparatus includes a semiconductor substrate having a front side surface including circuitry and a backside surface opposing the front side surface; a plurality of metal conductors formed over a front side surface of the semiconductor substrate; at least one cavity opening etched in a backside surface of the semiconductor substrate; and a radiator formed in a portion of the metal conductors and configured to radiate signals through the cavity opening in the backside surface. Methods and additional apparatus arrangements are also disclosed.

The present disclosure is directed to the application of additives to a feed material at a location remote from an industrial facility using the feed material.

An apparatus for upgrading coal comprising a baffle tower, inlet and exhaust plenums, and one or more cooling augers. The baffle tower comprises a plurality of alternating rows of inverted v-shaped inlet and outlet baffles. The inlet and outlet plenums are affixed to side walls of the baffle tower. Process gas enters the baffle tower from the inlet plenum via baffle holes in the side wall and dries the coal in the baffle tower. Process exhaust gas exits the baffle tower into the exhaust plenum via baffle holes in a different side wall of the baffle tower. Coal that enters the baffle tower descends by gravity downward through the baffle tower and enters a cooling auger, where the dried coal from the baffle tower is mixed with non-dried coal. A method of using the apparatus described above to upgrade coal.

A process for upgrading brown coal having a first water content including subjecting the brown coal to a conditioning step which includes heating the brown coal to a first temperature to produce a conditioned brown coal having a second water content which is lower than the first water content; attritioning the conditioned brown coal to enable water to be released from the microstructure of the brown coal and thereby producing an admixture of the brown coal and released water; forming aggregates of the admixture; drying the aggregates to produce upgraded brown coal having a third water content which is lower than the second water content.

Polytetrahydrobenzoxazines and bistetrahydrobenzoxazines, obtainable by (A) reacting at least one diamine of the formula H2N-A-NH2 with a C1- to C12-aldehyde and a C1- to C8-alkanol at 20 to 80° C. with elimination and removal of water, (B) reacting the condensation product from (A) with a phenol which bears a long-chain substituent at 30 to 120° C., and optionally (C) heating the reaction product from (B) to 125 to 280° C. The resulting polytetrahydrobenzoxazines and bistetrahydrobenzoxazines are suitable as fuel or lubricant additives, especially as detergent additives for diesel fuels.

The present invention relates to alkanolamide-containing compositions, and more particularly to alkanolamide-containing compositions formed by the reaction of a fatty acid and diethanolamine (DEA) which contain low levels of undesirable by-products. Such compositions are particularly suitable for use as fuel additives.

The present invention relates to the use of at least 120 ppm of a nitrogen-containing detergent as a diesel fuel additive to improve the performance of a diesel engine having a high pressure fuel system.

The present invention is directed to a degradation composition, methods and kits for degrading organic pollutants comprising reduced copper based nanoparticles-polymer complex (Cu-NPs) and an oxidant.

A preparation method of Bacillus subtilis biological composite material loaded with Fe3O4 magnetic nanoparticles with core-shell structure includes the following steps: 1) preparation of Fe3O4 nanoparticles, 2) preparation of Fe3O4@mSiO2 nanoparticles, 3) preparation of Fe3O4@mSiO2@MANHE nanoparticles; and 4) preparation of Bacillus subtilis@Fe3O4@mSiO2@MANHE composite.

A lattice and distribution network for a stackable chromatography cassette comprising: a peripheral seal;at least one screen forming the lattice surrounded by the peripheral seal, each at least one screen comprising a plurality of struts in a latticed arrangement;a first internal distribution network fluidly coupled to the lattice and surrounded by the peripheral seal;a second internal distribution network disposed opposite the first internal distribution network, fluidly coupled to the lattice and surrounded by the peripheral seal;wherein a direction of fluid flow is established from the first internal distribution network through the lattice to the second internal distribution network; andwherein preferential streamlines are minimized.

The present disclosure relates to the technical field of degradation of persistent pollutants and discloses a method for efficiently degrading a perfluorinated compound (PFC), through which the problems of harsh reaction conditions and less high defluorination rate existing in prior-art methods for degrading PFCs are solved. In the present disclosure, a 3-indoleacetic acid (IAA) solution is irradiated with 254 nm UV light to generate hydrated electrons, with which the PFC are degraded by reduction under an aerobic condition, where an organo-modified montmorillonite is added to provide a reaction microzone, so the degradation and defluorination effects of the hydrated electrons for the PFC are greatly improved. The method for degrading a PFC according to the present disclosure is not affected by the pH of and the dissolved oxygen in the solution and less affected by the humic substances in a water body, thereby overcoming the defects in existing methods for degrading PFCs with hydrated electrons while the degradation efficiency is ensured. Therefore, the present disclosure is of great application value.

Warriors fans from around the Bay Area flocked to Oakland for a parade through downtown and a rally on the shore of Lake Merritt. The massive crowd spilled into the streets, stopping traffic in many parts of the city, as team members, coaches, staff, and members of government gave speeches to commemorate the Warriors' historic championship.…

First, a loud siren seared my ears. When I turned, I saw four men draped in bandages standing atop a white hearse.…

Kamaiyah, Ice Cube, How to Dress Well, and Sigur Rós played in the rain despite the many delays, cancelations, and technical difficulties. Treasure Island promised one of its best lineups yet for its tenth anniversary, but severe weather literally rained on everyone's parade. Many performances were delayed or canceled, often with little communication to the public on Saturday.…

The Golden State Warriors paraded for the second time in three years in downtown Oakland yesterday. Players rode by in topless busses, paired with teammates and families, along with coaches, members of the team's ownership group, and of course the odd ambassadorial pairing of Mayor Libby Schaaf and MC Hammer.…

Here are photos from today's Warriors' championship parade.

The organization sets up at 27th Street and Northgate Avenue and at 6th and Castro streets. Blair Hippolyte and Jannie Rutledge, two Oakland residents who are homeless, sat on the sidewalk of 27th Street.…

This Mexico City taquero serves tacos and tortas sure to satisfy soccer stars. Most gym-goers have a favorite post-workout meal. Some swear by chocolate milk with its blend of sugar, protein, and fat, while others swear by cottage cheese, oatmeal, or smoothies.…

The Richmond pop-up is a new contender for best fried chicken sandwich. There's no shortage of smog check stations on Richmond's 23rd Street, but on a sunny Saturday afternoon, a steady stream of cars piled into Super Star Smog's tiny parking lot, causing a minor traffic jam on the adjacent side street. On a Wednesday afternoon, an otherwise quiet industrial and residential Richmond street filled with cars, and people hastily headed into what appeared to be a warehouse (but was actually a motorcycle club).…

The owners of Oakland's Homestead Restaurant have just debuted a new business concept that is meant to outlast the Covid-19 crisis.

Currently operating at the restaurant's 4029 Piedmont Ave. space Tuesdays through Saturdays from 10 a.m. to 6 p.m. via curbside pickup and Caviar or Doordash delivery, The Humble Sandwich comprises a selection of classic deli sandos made with the same high-quality ingredients for which the seven-year-old restaurant is revered.…

The owners of Oakland's Homestead Restaurant have debuted a new concept meant to outlast the COVID-19 crisis.

Shelter-in-place rules prevent Local Food Adventures founder Lauren McCabe Herpich from leading groups on East Bay culinary walking tours, as is her usual stock-in-trade.

But she has come up with another project to further tempt food fans while supporting local makers and proprietors.…

People for the Ethical Treatment of Animals sent UC Berkeley chancellor Carol Christ a letter today requesting permission to place a banner on the university's famous clocktower that reads "It's High Time We Went Vegan. PETA."…

Uptown Oakland's alaMar Kitchen & Bar will celebrate its sixth anniversary this Friday, May 1, with a contactless, social-distancing, Covid-19-crisis parade.

"In celebration of this milestone, we are asking all of our fans and supporters to parade in the safety of their cars," management announced in a press release today.…

Stories you shouldn’t miss:

1. Alameda County Public Health Director Muntu Davis contends that gentrification should be examined in terms of health impacts because of the displacement and stress it causes for low-income residents, the Bay Area News Group$ reports.…

The present invention relates to a process for producing an electrolytic capacitor, the process comprising process steps i) ii): i) providing a capacitor body (1) that comprises an electrode body (2) of an electrode material,a dielectric (3) which at least partially covers the surface of this electrode material, anda solid electrolyte (4) at least comprising an electrically conductive material which at least partially covers the dielectric surface; ii) applying a primer solution e) to the capacitor body (1), followed by an application of a solution or dispersion a) comprising a conjugated polymer b) and a solvent or dispersant d), followed by an at least partial removal of the solvent or dispersant d) for the formation of the polymeric outer layer (5) that is formed onto the capacitor body (1); wherein the primer solution e) comprises at least one monofunctional amine and at least one carboxylic acid.

A package includes a conductive pad, with a plurality of openings penetrating through the conductive pad. A dielectric layer encircles the conductive pad. The dielectric layer has portions filling the plurality of openings. An Under-Bump Metallurgy (UBM) includes a via portion extending into the dielectric layer to contact the conductive pad. A solder region is overlying and contacting the UBM. An integrated passive device is bonded to the UBM through the solder region.

I was wondering why the iconic Civic Centre clock in Southampton is not lit up blue on Thursday at 8pm to clap for the NHS.

CHRISTINE Cassell (letters 28th April) asks a pertinent question when she enquires where the responsibility for the problem with PPEs for front line NHS workers lies.

75 YEARS AGO this week St John Ambulance volunteers played a vital role delivering first aid and providing support to both the public and the armed forces on VE Day.

I SHOULD like to pay tribute to Alan Wiltshire the Echo and Romsey Advertiser reporter whose death was sadly announced last week

ONLY a delusional Lib Dem like Martin Kyrle could come up with an excuse like this about his beloved party doing well in the last election when in fact they lost over half their seats, then blaming it on our undemocratic electoral system, it’s the system we have, and our MP’s are elected on that system.

HE MAY NOT be held in the highest regard by the public but there’s something to love about Piers Morgan on Good Morning Britain.

More rose-tinted views of the EU: the EU not falling apart?

I say to all communities pat yourselves on the back for the great job you are doing taking care of each other and supporting each other.

The achievement of 75 years without any wars between European countries is unprecedented in history.

The UK-based mixer-maker and audiophile favorite MasterSounds has a small piece of joy to brighten up DJs’ days. They’ve released the third generation of their Radius 2 and Radius 4 mixers, and have adjusted their price points to cater to artists with a lower spending budget (especially now). These mixers are homegrown, too—MasterSounds mixers are […]

The post A third generation of Radius 2 + 4 rotary mixers: New tech upgrades, lower price appeared first on DJ TechTools.

The Town’s soccer franchise returns to the pitch this weekend with a new head coach and other fresh faces, kicking off its second season in front of Oakland's loud, loyal fans at Laney College. Last year, professional soccer planted seeds in Oakland. This year, fans hope to see them bloom into something beautiful, preferably with lots of wins on the Laney College pitch.…