Robotic vehicles to fight with enemy forces in Army training event

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  26 septembre 2024 | International, Terrestre

  Saab announces new munitions facility in Grayling, Michigan

  Once open, the facility will be used for final assembly and integration of shoulder-fired munitions and precision fire systems

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  7 février 2019 | International, Sécurité, Autre défense

  DARPA: Intelligent Healing for Complex Wounds

  Blast injuries, burns, and other wounds experienced by warfighters often catastrophically damage their bones, skin, and nerves, resulting in months to years of recovery for the most severe injuries and often returning imperfect results. This long and limited healing process means prolonged pain and hardship for the patient, and a drop in readiness for the military. However, DARPA believes that recent advances in biosensors, actuators, and artificial intelligence could be extended and integrated to dramatically improve tissue regeneration. To achieve this, the new Bioelectronics for Tissue Regeneration (BETR) program asks researchers to develop bioelectronics that closely track the progress of the wound and then stimulate healing processes in real time to optimize tissue repair and regeneration. Paul Sheehan, the BETR program manager, described his vision for the technology as “not just personalized medicine, but dynamic, adaptive, and precise human therapies” that adjust to the wound state moment by moment to provide greater resilience to wounded warfighters. “Wounds are living environments and the conditions change quickly as cells and tissues communicate and attempt to repair,” Sheehan said. “An ideal treatment would sense, process, and respond to these changes in the wound state and intervene to correct and speed recovery. For example, we anticipate interventions that modulate immune response, recruit necessary cell types to the wound, or direct how stem cells differentiate to expedite healing.” The envisioned BETR technology would represent a sharp break from traditional wound treatments, and even from other emerging technologies to facilitate recovery, most of which are passive in nature. Under current medical practice, physicians provide the conditions and time for the body to either heal itself when tissues have regenerative capacity or to accept and heal around direct transplants. Most people are familiar with interventions that include casts to stabilize broken bones or transplants of healthy ligaments or organs from donors to replace tissues that do not regenerate. Passive approaches often result in slow healing, incomplete healing with scarring, or, in some unfortunate cases, no healing at all. Blast injuries in particular seem to scramble the healing processes; 23 percent of them will not fully close. Moreover, research shows that in nearly two thirds of military trauma cases — a rate far higher than with civilian trauma injuries — these patients suffer abnormal bone growth in their soft tissue due to a condition known as heterotopic ossification, a painful experience that can greatly limit future mobility. Although recent experimental treatments offer some hope for expedited recovery, many of these new approaches remain static in nature. For instance, some “smart” bandages emit a continuous weak electric field or locally deliver drugs. Alternatively, hydrogel scaffolds laced with a drug can recruit stem cells, while decellularized tissue re-seeded with donor cells from the patient help avoid rejection by the host's immune system. These newer approaches may indeed encourage growth of otherwise non-regenerative tissue, but because they do not adapt to the changing state of a wound, their impact is limited. “To understand the importance of adaptive treatments that respond to the wound state, consider the case of antibiotic ointments,” Sheehan explained. “People use antibiotics to treat simple cuts, and they help if the wound is infected. However, completely wiping out the natural microbiota can impair healing. Thus, without feedback, antibiotics can become counterproductive.” Recent technologies have begun to close the loop between sensing and intervention, looking for signs of infection such as changes in pH level or temperature to trigger treatment. To date, however, these systems have been limited to monitoring changes induced by bacteria. For BETR, DARPA intends to use any available signal, be it optical, biochemical, bioelectronic, or mechanical, to directly monitor the body's physiological processes and then to stimulate them to bring them under control, thereby speeding healing or avoiding scarring or other forms of abnormal healing. By the conclusion of the four-year BETR program, DARPA expects researchers to demonstrate a closed-loop, adaptive system that includes sensors to assess wound state and track the body's complex responses to interventions; biological actuators that transmit appropriate biochemical and biophysical signals precisely over space and time to influence healing; and adaptive learning approaches to process data, build models, and determine interventions. To succeed, the BETR system must yield faster healing of recalcitrant wounds, superior scar-free healing, and/or the ability to redirect abnormally healing wounds toward a more salutary pathway. DARPA anticipates that successful teams will include expertise in bioelectronics, artificial intelligence, biosensors, tissue engineering, and cellular regeneration. Further, DARPA encourages proposals that address healing following osseointegration surgery, which is often necessary to support the use of advanced prosthetics by wounded warfighters. DARPA will host a Proposers Day on March 1, 2019 in Arlington, Virginia, to provide more information to researchers interested in submitting a proposal for funding. Additional information is available at https://go.usa.gov/xENCQ. A forthcoming Broad Agency Announcement, to be posted to the Federal Business Opportunities website, will include full details of the program. https://www.darpa.mil/news-events/2019-02-06a

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  17 avril 2020 | International, Terrestre

  Nammo signs major ammunition contract with Sweden

  April 16, 2020 - Nammo has signed a contract with the Swedish Defence Materiel Administration for delivery of small caliber ammunition worth SEK 670 million. Covering deliveries from 2020-22, the contract builds on a framework agreement signed in 2017, and will enable to Swedish Armed Forces to strengthen its levels of training and readiness. ”We are honored that the Swedish Armed Forces have placed their trust in us as their primary supplier of small caliber ammunition. Customers like Sweden accept only the best, and also have some very specific requirements that we have to fulfil, so in our view this is a major achievement by Nammo's product and manufacturing teams,” said Reijo Bragberg, Nammo's Executive Vice President for Small and Medium Caliber Ammunition. This contract is the second issued under the 2017 framework agreement, and covers six different ammunition types, both for training and combat. Going forward, Nammo is looking to expand its cooperation with the Swedish government in line with the strategic partnerships it has developed with both of Sweden's Nordic neighbors. Nammo CEO Morten Brandtzæg sees this kind of collaboration between industry and governments as essential in dealing both current and future security challenges. ”Recent events have again underscored the need to ensure security of supply in all situations, ranging from peace to crisis, conflict and even war. In our view this relies on both industry and governments cooperating more closely, and we stand ready to support from our side,” said Brandtzæg. Related / Contacts Endre Lunde Endre Lunde Press Contact Senior Vice President, Communications endre.lunde@nammo.com +4790853270 View source version on NAMMO: https://www.nammo.com/newsroom/#/pressreleases/nammo-signs-major-ammunition-contract-with-sweden-2991652