94 β -Decay Half-Lives of Neutron-Rich Cs 55 to Ho 67: Experimental Feedback and Evaluation of the r -Process Rare-Earth Peak Formation

The β-decay half-lives of 94 neutron-rich nuclei Cs144-151, Ba146-154, La148-156, Ce150-158, Pr153-160, Nd156-162, Pm159-163, Sm160-166, Eu161-168, Gd165-170, Tb166-172, Dy169-173, Ho172-175, and two isomeric states Er174m, Dy172m were measured at the Radioactive Isotope Beam Factory, providing a new experimental basis to test theoretical models. Strikingly large drops of β-decay half-lives are observed at neutron-number N=97 for Ce58, Pr59, Nd60, and Sm62, and N=105 for Eu63, Gd64, Tb65, and Dy66. Features in the data mirror the interplay between pairing effects and microscopic structure. r-process network calculations performed for a range of mass models and astrophysical conditions show that the 57 half-lives measured for the first time play an important role in shaping the abundance pattern of rare-earth elements in the solar system

HIP-based Handover Mechanism under MIH Architecture in Heterogeneous Wireless Networks

[[abstract]]In this paper, we offers a HIP-based vertical handover scheme under MIH architecture in heterogeneous wireless network. Many diversity wireless access technologies are offering in Next Generation Wireless Networks (NGWN). In NGWN, the integration of wireless access network will be accomplished by seamless handover which contains many challenges i.e. service mobility, vertical handover, common authentication, unified accounting/billing, security mechanisms, QoS and service provisioning, etc. Toward this direction, our research aims to provide a complete integration of heterogeneous network architecture and support a fit mobility management for network to seamless handover. We focus on simulation about vertical handover execution for WiMAX to WiFi scenario. Our idea can modify defects of Mobile IP and SIP. And it provides internet users always best connection. Moreover, we hope to contribute our research to beyond 4G wireless networks.[[notice]]補正完畢[[conferencetype]]國際[[conferencedate]]20110621~20110623[[booktype]]紙本[[booktype]]電子版[[iscallforpapers]]Y[[conferencelocation]]Gyeongju, Korea[[countrycodes]]KO

A Novel Packet Scheduling Scheme for Downlink LTE System

[[abstract]]Long term evolution (LTE) is the next generation wireless system. There are not many researches for LTE downlink scheduling. It uses orthogonal frequency division multiple access (OFDMA) in downlink. Until now, the goal for the LTE scheduler is achieving the system highest performance, but it will cause to lower priority connection delay or starvation under limited bandwidth resources. Therefore, we design a LTE downlink scheduling scheme and resource allocation strategy which are not only to achieve the system highest performance, but also avoid latency and starvation problem.[[notice]]補正完畢[[conferencetype]]國際[[conferencedate]]20111014~20111016[[iscallforpapers]]Y[[conferencelocation]]Dalian, China[[countrycodes]]CH

Single-cell multiomics identifies clinically relevant mesenchymal stem-like cells and key regulators for MPNST malignancy

Malignant peripheral nerve sheath tumor (MPNST), a highly aggressive Schwann cell (SC)-derived soft tissue sarcoma, arises from benign neurofibroma (NF); however, the identity, heterogeneity and origins of tumor populations remain elusive. Nesti