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The pay-and-use approach is the basis for the cloud computing services that are currently popular. Resource management is one of the more difficult tasks since it takes a while to identify requests and determine what kind of resources are needed to satisfy the customer's needs. Resource provisioning's goal is to identify and make available the right resources depending on user workload's QoS needs so that applications may make efficient use of the resources. The CSPs now offer advanced resource reserves for both short- and long-term periods. Cloud brokers are required to manage the on-demand cloud resource and maintain track of the SLA list of resource providers for their individual cloud customers in our suggested algorithm RSCC (Reservation System for Cloud Computing). According to the user's needs and cost, the RSCC algorithm functions as a flexible reservation that can accommodate a variety of services. The numerical findings demonstrated that the suggested long-term resource planning method was able to produce operational costs that were almost ideal.

A limit on use is often practiced overnight in mountain national parks to reduce users’ environmental impact on campgrounds and cabins or huts, where they spend most of their time. This study aims to propose an appropriate management system to mitigate the problems observed in Daisetsuzan National Park’s unmanaged campsites. We looked into three mountain national parks in Taiwan to learn about an established campground reservation system. We collected information on campgrounds and cabins in these three national parks through a literature review and internet surveys. The distribution of campgrounds and cabins was mapped using ArcMap 10.8.1. They effectively reduced the distance between adjacent campgrounds and controlled each campground’s area. This was done by tolerating some informal sites among online reservable campgrounds. The results of the interview surveys with the three park managers showed that the reservation system helped reduce the crowding problem. Introducing a lenient reservation system, with the support of related stakeholders and park users, would be a promising option to mitigate soil erosion and overuse problems in campsites in Daisetsuzan National Park’s alpine zone and in other campsites in fragile environments worldwide.

SABRE aims to directly measure the annual modulation of the dark matter interaction rate with NaI(Tl) crystals. A modulation compatible with the standard hypothesis, in which our Galaxy is immersed in a dark matter halo, has been measured by the DAMA experiment in the same target material. Other direct detection experiments, using different target materials, seem to exclude the interpretation of such modulation in the simplest scenario of WIMP-nucleon elastic scattering. The SABRE experiment aims to carry out an independent search with sufficient sensitivity to confirm or refute the DAMA claim. The goal of the SABRE experiment is to achieve the lowest background rate for a NaI(Tl) experiment (order of 0.1 cpd/kg/keVee in the energy region of interest for dark matter). This challenging goal could be achievable by operating high-purity crystals inside a liquid scintillator veto for active background rejection. In addition, twin detectors will be located in the northern and southern hemispheres to identify possible contributions to the modulation from seasonal or site-related effects. The SABRE project includes an initial Proof-of-Principle phase at LNGS (Italy), to assess the radio-purity of the crystals and the efficiency of the liquid scintillator veto. This paper describes the general concept of SABRE and the expected sensitivity to WIMP annual modulation.

In line with government guidance, over the next few weeks and months RSA House will be opening up again to staff, Fellows and for outside events. From May 17, the House will be open to Fellows and visitors two days a week. A booking system will be in place to ensure social distancing guidelines are followed, and free refreshments will be available, although the Coffeehouse will remain closed. From June 21, when it is planned that all legal limits on social contact will be lifted, RSA House will reopen five days a week and the Coffeehouse will reopen as well. These plans are subject to change in accordance with government guidance.