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Dark Hub

Emulating the approach of so-called "dark kitchens" that allow various takeaway providers to rent kitchen space, the mobility-as-a-service "dark hub" concept enables individual couriers or delivery firms to rent small delivery EVs, such as electric bikes, cargo e-bikes, mopeds or scooters, from a Port urban car park location.

Dark Hub

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Port said the approach would allow delivery and courier companies to offer zero-emission services without the need for electric fleet parking, charging, maintenance and financing. "Offered to both independent couriers and delivery firms, Port's dark hubs mean courier companies can automate currently labor-intensive fleet management tasks and unlock the full potential of EVs," the company said.

"We are hugely excited to be launching our first Port dark hub in the heart of London," said Port founder Kamil Suda. "Electrification of the last-mile delivery industry is both a great challenge and opportunity; we want to bring Port's solution to every major city to help the sector reach net zero and fully capitalize on the benefits of small EVs."

The mobility-as-a-service dark hub concept enables individual couriers or delivery firms to rent small delivery EVs (including electric bikes, cargo ebikes, mopeds or scooters) from the car park. EVs are hired on a weekly or monthly subscription through the Port app, and the vehicle, parking, charging, maintenance and software are all provided by Port.

The location in the City Centre is close to numerous bus stops and the nearby Underground Station sites on both the Northern and Piccadilly Line meaning access from the outskirts of London is easy. Building dark hubs in city centres activates a suburban workforce that is currently untapped by the last-mile delivery industry, these will enable them to commute into the city centre and pick up their fully charged vehicle for the day.

I'm a pretty big fan of the dark theme on my BlackBerry 10 devices so it's certainly a welcome change for me. The only thing here is the wait time for it and whether or not it will be in the final release versions.

Grow dozens of colorful crystals, including two types of crystals that glow in the dark. Experiment with growing a variety of crystals from a potassium alum salt solution. Add strontium aluminate to your crystal solutions to make phosphorescent crystals that charge up in the light and then glow in the dark on their own, slowly emitting the stored light energy. Or try adding one of two ultraviolet-reactive pigments, pink and greenish-yellow, to your crystals to create fluorescent crystals, which glow in stunning colors under the light from the included ultraviolet flashlight.

The mobility-as-a-service dark hub concept enables individual couriers or delivery firms to rent small delivery EVs (including electric bikes, cargo e-bikes, mopeds, or scooters) from a Port urban car park location. EVs are hired on a weekly or monthly subscription through the Port app, and the vehicle, parking, charging, maintenance, and software are all provided by Port.

We know that dark matter exists because it acts on the cosmos in a number of ways. In the 1930s, an astrophysicist named Fritz Zwicky realized that, in order to act the way they do, galaxy clusters must contain a lot more mass than was actually visible. If the galaxies also contained unseen "dark" matter, everything made a lot more sense. Then, in the 1970s, astronomer Vera Rubin discovered that stars at the edge of a galaxy move just as quickly as stars near the center. This observation makes sense if the visible stars were surrounded by a halo of something invisible: dark matter. Since then, a number of other astronomical observations have confirmed the effects of dark matter.

Several dozen experiments are now on the hunt for stronger evidence that dark matter exists. Many of these experiments look for Weakly Interacting Massive Particles, or WIMPs. Others search for a particle called the axion, a theoretical neutral particle that interacts with other particles extraordinarily weakly, or theorized dark-matter versions of the photon.

Experiments generally hunt for dark-matter particles in two ways: either through a direct search in which dark-matter particles bump into target material and scatter off atomic nuclei, resulting in a measurable nuclear recoil (these experiments are usually located underground, where there's little background noise), or through an indirect search for particles that should appear if a dark matter particle annihilates (these experiments are generally conducted with ground-based or space satellite telescopes). It is also thought that if dark matter particles can annihilate into regular (or Standard Model) particles, then the reverse could be true, and that dark matter particles could be created during high-energy collisions like those at the Large Hadron Collider.

Weakly Interacting Massive Particles (WIMPs) are the candidates of dark matter in our universe. Up to now any direct interaction of WIMP with nuclei has not been observed yet. The exclusion limits of the spin-independent cross section of WIMP-nucleon which have been experimentally obtained is about 10^-7pb at high mass region and only 10^-5pb} at low mass region. China Jin-Ping underground laboratory CJPL is the deepest underground lab in the world and provides a very promising environment for direct observation of dark matter. The China Dark Matter Experiment (CDEX) experiment is going to directly detect the WIMP flux with high sensitivity in the low mass region. Both CJPL and CDEX have achieved a remarkable progress in recent two years. The CDEX employs a point-contact germanium semi-conductor detector PCGe whose detection threshold is less than 300 eV. We report the measurement results of Muon flux, monitoring of radioactivity and Radon concentration carried out in CJPL, as well describe the structure and performance of the 1 kg PCGe detector CDEX-1 and 10kg detector array CDEX-10 including the detectors, electronics, shielding and cooling systems.

Fermilab, in collaboration with Lawrence Berkeley National Laboratory, recently led the development of the skipper CCD, a breakthrough technology with unprecedented sensitivity for ultralow-energy particle detection. Fermilab is now collaborating with Stonybrook University to demonstrate the potential of this technology as a low-mass dark matter experiment, called SENSEI, and has attracted external funding from the Heising-Simons Foundation.

COSINE is a NaI(Tl) direct detection dark matter experiment, a collaboration between the DM-Ice and KIMS experiments. The first phase of the experiment deployed 106 kg of NaI(Tl) at Yangyang underground laboratory in South Korea. COSINE-100 was started taking data in summer 2016. Detector R&D for future upgrade of COSINE-200 is extensively ongoing.

Following the success of the second run of PICO 60, the PICO collaboration designed a new type of bubble chamber for dark matter searches. This chamber eleminates the need for a buffer liquid which appears to be responsible in large parts for the activation of backgrounds in conjunction with particulate contamination inside the vessel. PICO 40L is the first detector that will be constructed using this "right-side-up" principle. Currenty it is planned ot deploy this chamber at SNOLAB in 2018. All major parts have been assembled under clean room conditions and the final assembly is now underway in the underground lab.

According to vector portal models, sub-GeV dark matter particles can be generated at the beam dump of the Booster Neutrino Beamline at FNAL, and detected with the kilo-ton scale MiniBooNE neutrino detector. MiniBooNE-DM is looking for signatures of such accelerator-produced high energy dark matter that scatter off nucleons, producing scintillation light which can be detected by photo-multiplier tubes. The accurate timing of events from the accelerator beam structure will provide additional information to detect dark matter through its sub-luminal time-of-flight.

ADMX, located at the University of Washington, searches for the axion, a hypothetical neutral elementary particle that has only extraordinarily feeble interactions with normal matter and radiation. Light axions are thought to have been copiously produced in the early universe and may constitute dark matter. The ADMX experimental technique is to thread a tunable microwave cavity with a large static magnetic field. Nearby halo axions would thereby convert into microwave photons, and those photons would be detected by near-quantum-limited receivers. This direct-detection, laboratory-based experiment is the only dark-matter axion search sensitive enough to detect plausible dark-matter axions with the expected masses and interaction strengths.

ANAIS was developed by the Nuclear Physics and Astroparticles group of the University of Zaragoza in Spain. The experiment pursues dark matter by looking at the annual modulation of the expected interaction rates in a target of sodium iodide (NaI), material which produces small scintillations when a particle interacts and deposits some energy. This modulation is a distinctive feature stemming from the Earth's revolution around the sun, which changes periodically the relative velocity of incoming dark matter particles to the detector and, because of that, the energy deposited. DAMA-LIBRA experiment at Gran Sasso Underground Laboratory has reported the presence of modulation in its data with a high statistical significance; ANAIS could confirm it and help to understand the different systematics involved.

The XMASS project aims to detect dark matter, "pp" and "7Be" solar neutrinos, and neutrinoless double beta decay using ultra pure liquid xenon. The liquid xenon detector XMASS-I, dedicated to search for dark matter particles, was constructed in Japan's Kamioka Observatory. A total of 642 inward-pointing photomultiplier tubes detect xenon scintillation light. XMASS-I's copper vessel is placed at the center of a cylindrical water tank 10 meters in diameter and 11 meters in height to shield it from external background noise. Physics data-taking began in November 2013. 041b061a72


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