Channel

摘要： In the early stage of 6G research,carrying out research on channel measurements and models is one of the fundamental and prerequisite works,as well as full of the challenges.Driven by the demand for multiple frequency bands,versatile scenarios,and various new technologies in the future,6G channels are expanding in multiple dimensions such as the space-time-frequency domains.Those all make 6G channel measurement and modeling research face a series of new challenges,e.g.,non-stationarity in multiple dimensions,the obvious increase in modeling complexity,and changes in theoretical premises and assumptions.It is therefore clear that more efforts are needed to understand propagation characteristics,especially in the new scenes and applications,and to develop a new paradigm for 6G channel modeling.

摘要： Dear editor,Over the past decade,germanium has attracted great interest as a promising channel material for p-channel metal oxide semiconductor field-effect-transistor(MOSFET),owing to its higher hole mobility over Si[1].

摘要： Dear editor,Orthogonal frequency division multiplexing(OFDM) has been adopted in new radio(NR) [1], and multiple-port demodulation reference signal(DMRS) has been designed to achieve channel estimation. In NR, two ports of DMRS share the same frequency resource elements(RE) by employing an orthogonal code comprising cyclic shift phase. In general, channel estimation can be achieved via the classical discrete Fourier transform(DFT) scheme [2, 3] as channels for the two ports of DMRS can be separated in the time domain via the DFT scheme.

摘要： The demand for high-speed boats that operating near to shoreline is increasing nowadays.Understanding the behavior and attitude of high-speed boats when moving in different waterways is very important for boat designer.This research uses a CFD(Computational Fluid Dynamics)analysis to investigate the shallow water effects on prismatic planing hull.The turbulence fl ow around the hull was described by Reynolds Navier Stokes equations RANSE using the k-ɛturbulence model.The free surface was modelled by the volume of fl uid(VOF)method.The analysis is steady for all the ranges of speeds except those close to the critical speed range Fh=0.84 to 1.27 due to the propagation of the planing hull solitary waves at this range.In this study,the planing hull lift force,total resistance,and wave pattern for the range of subcritical speeds,critical speeds,and supercritical speeds have been calculated using CFD.The numerical results have been compared with experimental results.The dynamic pressure distribution on the planing hull and its wave pattern at critical speed in shallow water were compared with those in deep water.The numerical results give a good agreement with the experimental results whereas total average error equals 7%for numerical lift force,and 8%for numerical total resistance.The worst effect on the planing hull in shallow channels occurs at the critical speed range,where solitary wave formulates.

摘要： Dear editor,The acquirement of the channel state information(CSI) is indispensable for designing efficient beamformers [1]. Unfortunately, estimating CSI is extremely challenging in the mm Wave/THz systems where the number of antennas is super-large and the receive signal-to-noise ratio(SNR) is relatively low. Most of the existing estimators are based on the direct applications of inherent channel sparsity and generic compressive sensing(CS) techniques, which cannot lead to fine enough performances in channel estimation because it puts strict requirements on the channel sparsity or the data measurements [2–7].

摘要： A protective action of melatonin(MELAT)on docetaxel(DCT)-induced inflammation,apoptosis,and reactive free oxygen radical(fROS)generation values via blocking of TRPM2 calcium-permeable channel was investigated in different cells except for laryngo-tracheal epithelial(LT-Epi)cells.Hence,the protective action ofMELAT on DCT-induced oxidative toxicity and inflammation in LT-Epi tissue and cells of mice were investigated in the current study.MELAT treatment ameliorated DCTinduced mitochondrial ROS in the LT-Epi cells by reducing the generation of fROS(cytosolic and mitochondrial),lipid peroxidation,and depolarization of the mitochondrial membrane,while increasing reduced glutathione(GSH),GSH peroxidase,and total antioxidant status.In addition,DCT-induced increases of cytokine(IL-1β,IL-6,and TNF-α)generations were also diminished in the LT-Epi tissue by MELAT treatment.Furthermore,MELAT treatment increased viability and count of the cells followed by decreasing levels of cell death,caspase-3,and-9.The TRPM2 activity was also reduced by MELAT and TRPM2 channel blocker(ACA)treatments.In conclusion,MELAT modulated the increase of DCT-induced LT-Epi cell death by inhibiting mitochondrial oxidative stress and TRPM2 channel activity.Hence,DCTcaused side cell death,oxidant,and inflammatory actions in the LT-Epi were diminished via the treatment of MELAT.

摘要： This paper reports a laboratory investigation of the fuel injection process in a diesel engine.The atomization process of the considered fuel(a hydrocarbon liquid)and the ensuing mixing with air is studied experimentally under high-pressure conditions.Different types of injector nozzles are examined,including(two)new configurations,which are compared in terms of performances to a standard injector manufactured by the Bosch company.For the two alternate configurations,the intake edges of one atomizing hole(hole No.1)are located in the sack volume while for the other(hole No.2)they are located on the locking cone of the needle valve.The injection process,the fuel atomization fineness and fuel supply speed characteristics are studied as functions of high-pressure fuel pump camshaft speed and rotation angle.The results obtained show that a decrease in the high-pressure fuel pump camshaft speed can produce fuel redistribution depending on the injector operation.In general,however,the hole No.1 can ensure fuel flow with higher speed with respect to the hole No.2 for all the operation modes of the injector.Based on such an analysis,we conclude that the use of certain injectors can enable a fine tuning of the propagation process of fuel sprays into various areas of the diesel engine combustion chamber.

摘要： Facing new situations and development,ideological and political work in colleges and universities presents new characteristics under the new circumstances.,which requires student-affairsadministrators to have a correct attitude,grasp the laws scientifically,study new situations,inspiring motivation,broaden work channels,and improve efficiency.Therefore,student-affairs-administrators must enhance their own quality and competency through thoroughly studying the characteristics of college students1 ideological work,scientifically grasping the ideological and political laws,and constantly improving the pertinence and effectiveness of ideological and political education.

摘要： In this work, the effects of GaN channel traps and temperature on the performance of AlGaN/AlN/GaN/AlGaN high electron mobility transistors(HEMTs) on Si(111) substrate, were investigated. 2 D simulations carried out using the Silvaco TCAD simulator tool for different drain and gate voltages showed that acceptor-like traps in the channel have a significant influence on the DC and RF characteristics. It was found that deeper acceptors below the conduction band with larger concentration have a more pronounced effect on the transistor performance. Meanwhile, the donor-like traps show no influence. Pulsing the device with different pulse widths and bias conditions, as well as increasing temperature, showed that the traps are more ionized when the pulse is wider or the temperature is higher, which can degrade the drain current and thus the DC characteristics of the transistor. Passivation of the transistor has also a beneficial effect on performance.

摘要： A novel two-state Markov channel model is proposed，which assumes that the envelope of the received signal subjccts to Riciean distribution for an ideal channel state while the envelope of the received signal Corazza's channel model for a non-ideal channel state．The comparative results of the cumulative distribution，the level．crOssiIlg rate as well as the-average duradon of fades of simulation and measurement show that the assumption is simple，reasonable and useful in practice．

摘要： 本发明公开了一种基于Open‑Channel SSD结构严格顺序写方法。本发明一种基于Open‑Channel SSD结构严格顺序写方法，包括：接受到文件系统发送的数据请求，根据当前的数据请求的逻辑地址连续性和请求长度，将数据请求队列分成两个子队列即连续队列和随机队列，分别存在顺序缓存和随机缓存中；当前总的请求长度为Lenr，当前顺序请求长度为Lensr；对于顺序缓存采用队列“先进先出”的数据结构。本发明的有益效果：本专利提出基于Open‑Channel SSD结构严格顺序写方法，在缓存区增加了一个缓存区根据请求类型不同，将请求顺序请求和随机请求严格分开缓存在相应的顺序缓存和随机缓存里面。

摘要： 本发明公开了一种动态确定Off-Channel的方法，包括以下步骤：发送终端获取本端和接收终端的无线环境及信道参数；所述发送终端向所述接收终端发送切换请求消息，所述切换请求消息携带切换信道信息列表；所述发送终端接收所述接收终端返回的切换响应消息，所述响应消息中携带所述接收终端确定的切换信道信息。本发明公开了一种动态确定Off-Channel的系统及设备。本发明对直连使用的Off-Channel动态即时确定，保证了Off-Channel的可用性。

摘要： 本发明公开了一种基于Fiber Channel的远程存储卸载设备，至少包括：FPGA主控模块、光模块、地面卸载设备、mSATA固态电子盘，mSATA固态电子盘中存储有机载设备上的机载数据，FPGA主控模块内部具有一虚拟存储空间，该空间与mSATA固态电子盘对应，将mSATA固态电子盘中的数据统一在虚拟存储空间内；光模块与FPGA主控模块连接，对FPGA主控模块内存储的机载数据进行卸载；FPGA主控模块与地面卸载设备之间通过Fiber Channel进行远距离传输。本发明是基于FPGA实现Fiber Channel远程存储卸载，能够提高多主机间的数据存储性能，并且实现数据远距离的卸载；无需拆卸设备即可快速卸载数据到地面设备上，极大的降低了设备拆卸带来的损坏率，增加了设备的可靠性，降低了更换的经济成本。

摘要： 本发明公开了一种基于Open‑Channel SSD结构严格顺序写方法。本发明一种基于Open‑Channel SSD结构严格顺序写方法，包括：接受到文件系统发送的数据请求，根据当前的数据请求的逻辑地址连续性和请求长度，将数据请求队列分成两个子队列即连续队列和随机队列，分别存在顺序缓存和随机缓存中；当前总的请求长度为Lenr，当前顺序请求长度为Lensr；对于顺序缓存采用队列“先进先出”的数据结构。本发明的有益效果：本专利提出基于Open‑Channel SSD结构严格顺序写方法，在缓存区增加了一个缓存区根据请求类型不同，将请求顺序请求和随机请求严格分开缓存在相应的顺序缓存和随机缓存里面。

摘要： 本发明公开了一种基于Red Channel先验的水下图像清晰化方法，首先，基于New Optical模型和Red Channel先验的水下图像复原方法建立图像清晰化模型；然后，针对输入的水下图像选取红通道最大值所在的点作为图像最亮点，从而得到该水下图像的背景光；其次，将水下图像由RGB颜色空间转换到CIE Lab颜色空间，并判断光照环境中是否存在人工光源，进而得到局部域内恒定的散射比；并计算水下图像RGB三个通道的衰减比，最终利用所建模型将水下图像复原为清晰图像。经过本发明方法处理后的复原图像不但能有效增强图像的对比度，还能很好地处理三通道透射率估计不准确带来的色偏问题。

摘要： 一种FibreChannelTarget卡验证系统，包括硬件层及用户层，硬件层安装有待测试的FibreChannelTarget卡，待测试的FibreChannelTarget卡设有第一端口及第二端口，用户层安装有I/O测试工具，FibreChannelTarget卡验证系统还包括内核层，内核层中包括内核子系统层、FibreChannelTarget卡驱动模组和模拟存储子系统，I/O测试工具向内核层发出读/写信号，内核子系统层对接收所述读/写信号进行处理，并将处理后的信号传输给待测试的FibreChannelTarget卡，待测试的FibreChannelTarget卡将处理后的信号传输给模拟存储子系统，模拟存储子系统根据这些信号完成对应的读/写操作，并返回一完成信号给I/O测试工具，I/O测试工具在接收到完成信号后做出测试结果；本发明还包括一种验证方法。

摘要： 本发明提供了一种Fibre channel 64位并行加扰解扰器的FPGA实现方法。包括加扰实现方法及解扰实现方法。所述加扰实现方法是利用一个异或树和一个延迟单元实现64路并行的加扰。所述解扰实现方法是利用一个异或树和一个延迟单元实现64路并行的解扰。本发明提供了一种更高并行度的FPGA实现方案加扰实现方案：该方案采用一个异或树和一延迟单元实现64路并行的加扰。采用一个异或树和一延迟单元实现64路并行的解扰。本发明能更好的适应Fibre channel通信中高速率的要求。

摘要： 本发明公开了一种实现M-channel控制的方法和装置，均可针对M-channel注册表项引入老化时间；在M-channel注册表项的老化时间到达时，删除/移除所述M-channel注册表项。另外，还可以根据M-channel注销请求删除/移除M-channel。本发明方法和装置，实现了对M-channel的控制，能够明显减少系统资源的占用，有效提高系统的使用效率。

摘要： 本发明公开了一种实现S-channel建立的方法和系统。本发明方法中，与C组件C-component/S组件S-component直连的直连端口扩展器PE向C-component/S-component通告自身的端口信息；C-component/S-component向所述直连PE通告各个端口对应的扩展虚拟局域网标识E-VID；PE根据分配的E-VID，进行E-VID的成员组配置。无论是方法还是系统，本发明实现S-channel建立的技术，均可支持S-channel的建立。

摘要： 本发明提供了一种Fibre channel 64位并行加扰解扰器的FPGA实现方法。包括加扰实现方法及解扰实现方法。所述加扰实现方法是利用一个异或树和一个延迟单元实现64路并行的加扰。所述解扰实现方法是利用一个异或树和一个延迟单元实现64路并行的解扰。本发明提供了一种更高并行度的FPGA实现方案加扰实现方案：该方案采用一个异或树和一延迟单元实现64路并行的加扰。采用一个异或树和一延迟单元实现64路并行的解扰。本发明能更好的适应Fibre channel通信中高速率的要求。