Electrical Energy Storage Strategy to Support Electrification of the Fleet

NPS NRP Project PosterThis research aims to identify current advanced battery requirement (baseline) and project anticipated battery requirements for the operating force in 2035 and 2050. The research may consider other forms of energy storage as appropriate and based on sponsor interest. The research may use a mission engineering perspective to determine the battery requirements. The analysis may include battery chemistry, energy density, charge/discharge rate, safety concerns, etc. of the battery. The research will attempt to answer the following questions: What is the current advanced battery requirement (baseline)? What is the projection for batteries required by the operating force by 2035? What is the projection for batteries required by the operating force by 2050? The research plan is: 1) Conduct lit review, 2) Identify existing battery systems aboard operational systems and near-term developments, 3) Identify/develop CONOPS and mission scenarios for future battery uses, 4) Conduct targeted lit review on battery technologies that may be viable in 2035 and 2050, 5) Conduct analysis of current power converter and control hardware/software, and battery energy management, 6) Analysis of future battery techs for safety, 7) Develop predictions and recommendations for future battery use across the fleet in 2035 and 2050.N9 - Warfare SystemsThis research is supported by funding from the Naval Postgraduate School, Naval Research Program (PE 0605853N/2098). https://nps.edu/nrpChief of Naval Operations (CNO)Approved for public release. Distribution is unlimited.

Electrical Energy Storage Strategy to Support Electrification of the Fleet

NPS NRP Technical ReportThis research aims to identify current advanced battery requirement (baseline) and project anticipated battery requirements for the operating force in 2035 and 2050. The research may consider other forms of energy storage as appropriate and based on sponsor interest. The research may use a mission engineering perspective to determine the battery requirements. The analysis may include battery chemistry, energy density, charge/discharge rate, safety concerns, etc. of the battery. The research will attempt to answer the following questions: What is the current advanced battery requirement (baseline)? What is the projection for batteries required by the operating force by 2035? What is the projection for batteries required by the operating force by 2050? The research plan is: 1) Conduct lit review, 2) Identify existing battery systems aboard operational systems and near-term developments, 3) Identify/develop CONOPS and mission scenarios for future battery uses, 4) Conduct targeted lit review on battery technologies that may be viable in 2035 and 2050, 5) Conduct analysis of current power converter and control hardware/software, and battery energy management, 6) Analysis of future battery techs for safety, 7) Develop predictions and recommendations for future battery use across the fleet in 2035 and 2050.N9 - Warfare SystemsThis research is supported by funding from the Naval Postgraduate School, Naval Research Program (PE 0605853N/2098). https://nps.edu/nrpChief of Naval Operations (CNO)Approved for public release. Distribution is unlimited.

Electrical Energy Storage Strategy to Support Electrification of the Fleet

NPS NRP Executive SummaryThis research aims to identify current advanced battery requirement (baseline) and project anticipated battery requirements for the operating force in 2035 and 2050. The research may consider other forms of energy storage as appropriate and based on sponsor interest. The research may use a mission engineering perspective to determine the battery requirements. The analysis may include battery chemistry, energy density, charge/discharge rate, safety concerns, etc. of the battery. The research will attempt to answer the following questions: What is the current advanced battery requirement (baseline)? What is the projection for batteries required by the operating force by 2035? What is the projection for batteries required by the operating force by 2050? The research plan is: 1) Conduct lit review, 2) Identify existing battery systems aboard operational systems and near-term developments, 3) Identify/develop CONOPS and mission scenarios for future battery uses, 4) Conduct targeted lit review on battery technologies that may be viable in 2035 and 2050, 5) Conduct analysis of current power converter and control hardware/software, and battery energy management, 6) Analysis of future battery techs for safety, 7) Develop predictions and recommendations for future battery use across the fleet in 2035 and 2050.N9 - Warfare SystemsThis research is supported by funding from the Naval Postgraduate School, Naval Research Program (PE 0605853N/2098). https://nps.edu/nrpChief of Naval Operations (CNO)Approved for public release. Distribution is unlimited.

Few randomized trials in preterm birth prevention meet predefined usefulness criteria

Funding Information: Funding: The study was funded by a grant from the Netherlands Organization for Health Research and Development (ZonMw Rubicon grand #452182306). The funder had no involvement in any phase of this study. Meta-Research Innovation Center at Stanford (METRICS), Stanford University is supported by a grant from the Laura and John Arnold Foundation. JvtH is supported by postdoctoral grant from the Netherlands Organization for Health Research and Development (Rubicon grand 452,182,306). C.A. is supported by postdoctoral grants from the Knut and Alice Wallenberg Foundation (K.A.W. 2019.0561), Uppsala University, and the Sweden-America Foundation. B.M. is supported by an NHMRC Investigator grant (GNT1176437). B.M. reports consultancy for Guerbet, has been a member of the ObsEva advisory board and holds Stock options for ObsEva. The work of J.I. has been supported by an unrestricted gift from Sue and Bob O'Donnell. J.I. is a team member of the editorial board of JCE. Publisher Copyright: © 2023 The AuthorsPeer reviewe

Face-to-face vs telephone pre-colonoscopy consultation in colorectal cancer screening; A randomised trial

Background: A pre-colonoscopy consultation in colorectal cancer (CRC) screening is necessary to assess a screenees general health status and to explain benefits and risks of screening. The first option allows for personal attention, whereas a telephone consultation does not require travelling. We hypothesised that a telephone consultation would lead to higher response and participation in CRC screening compared with a face-to-face consultation. Methods:A total of 6600 persons (50-75 years) were 1: 1 randomised for primary colonoscopy screening with a pre-colonoscopy consultation either face-to-face or by telephone. In both arms, we counted the number of invitees who attended a pre-colonoscopy consultation (response) and the number of those who subsequently attended colonoscopy (participation), relative to the number invited for screening. A questionnaire regarding satisfaction with the consultation and expected burden of the colonoscopy (scored on five-point rating scales) was sent to invitees. Besides, a questionnaire to assess the perceived burden of colonoscopy was sent to participants, 14 days after the procedure.Results:In all, 3302 invitees were allocated to the telephone group and 3298 to the face-to-face group, of which 794 (24%) attended a telephone consultation and 822 (25%) a face-to-face consultation (P=0.41). Subsequently, 674 (20%) participants in the telephone group and 752 (23%) in the face-to-face group attended colonoscopy (P=0.018). Invitees and responders in the telephone group expected the bowel preparation to be more painful than those in the face-to-face group while perceived burden scores for the full screening procedure were comparable. More subjects in the face-to-face group than in the telephone group were satisfied by the consultation in general: (99.8% vs 98.5%, P=0.014).Conclusion:Using a telephone rather than a face-to-face consultation in a population-based CRC colonoscopy screening progr

Postnatal Acute Famine and Risk of Overweight: The Dutch Hungerwinter Study

Objective. To examine the association between undernutrition during postnatal periods of development and the risk of overweight in adulthood. Methods. We studied 8,091 women from Prospect-EPIC, exposed to the Dutch famine at ages between 0 and 21 years, recruited at ages between 49 and 70 years. We used linear and logistic regression models to explore the effect of famine on BMI, waist circumference, and the risk of overweight. Results. Overall, postnatal famine exposure was associated with increased BMI and waist circumference in a dose-dependent manner (P  for trend < 0.01). Furthermore, risk of overweight was increased following famine exposure (P  for trend = 0.01), with those severely exposed at ages 0–9 years having 25% (95% CI 1.05 to 1.50) higher risk compared to unexposed women. Conclusions. This study is the first to directly show a positive association between short and transient undernutrition during postnatal development and BMI, waist circumference, and overweight in adulthood

Assessing the usefulness of randomised trials in obstetrics and gynaecology

FUNDING INFORMATION The study was funded by a grant from the Netherlands Organization for Health Research and Development (ZonMw Rubicon grant #452182306). The funder had no involvement in any phase of this study.Non peer reviewedPublisher PD