VoIP Market Intensified,the Government Control Still Won't Be Unlocked In the Near Future

The traditional telecommunications operator of China has entered into a substantive network construction stage of NGN and new VoIP service in 2006. As the increasing understanding and the consideration of cost to VoIP, VoIP has become more acceptable for CIO of large-scale enterprises. Small and medium-scale enterprises are sensitive to communication cost, but influenced by the maturity of VoIP technology and reduction of VoIP equipment price, the market is intensified. All these drive the VoIP equipment entering into the actual purchase stage and promote the stable growth of VoIP equipment scale.

A comparative analysis of distal locked and unlocked long proximal femoral nail antirotation (PFNA-II) in the fixation of stable intertrochanteric fractures

Purpose:Long proximal femoral nail anti-rotation (PFNA-II) is a preferred implant in recent years for fixation of pertrochanteric fractures,especially in osteoporotic patients.The purpose of this study is to prospectively investigate the effect of distal locking in long PFNA-II fixation of stable intertrochanteric fractures.Methods:A total of 58 patients with isolated stable intertrochanteric fractures and treated in our hospital during the study period of 2017–2019 by distal locked or unlocked long PFNA-II fixation were included in this study.Patients who had multiple injuries or open fractures were excluded.There were 40 female and 18 male patients,with 33 affecting the left side and 25 the right side.Of them,31 belonged to the distal locked group (group A) and 27 to the unlocked group (group B).Surgical procedures and implants used in both groups were similar except for the distal locking of the nails.General data (age,gender,fracture side,etc.) showed no significant difference between two groups (allp > 0.05).The intraoperative parameters like operative time,radiation exposure and follow-up parameters like functional and radiological outcomes were recorded and compared.Statistical tests like the independent samplest-test Fischer’’s exact and Chi-square test were used to analyze association.Results:The distribution of the fractures according to AO/OTA classification and 31A1.2 type of intertrochanteric fractures were most common in our study.All the included fractures united and the average functional outcome in both groups were good and comparable at the end of one year.The operative time (mL,107.1 ± 12.6vs.77.0 ± 12.0,p < 0.001) and radiation exposure (s,78.6 ± 11.0vs.40.3 ± 9.3,p < 0.001) were significantly less among the patients in group B.Fracture consolidation,three months after the operative procedures,was seen in a significantly greater proportion of patients in group B (92.6%vs.67.7%,p = 0.025).Hardware irritation because of distal locking bolt was exclusively seen in group A,however this was not statistically significant (p = 0.241).Conclusion:We conclude that,in fixation of stable intertrochanteric fractures by long PFNA-II nail,distal locking not only increases the operative time and radiation exposure but also delays the fracture consolidation and increases the chances of hardware irritation,and hence is not required.

英国档案数字化项目的经验及启示

英国的档案数字化建设项目起步较早且成果显著,在当前数字战略发展背景下,对英国档案数字化项目进行研究,对于促进我国推行档案大数据建设具有重要的参考意义。本文通过对英国档案数字化建设的典型项目Archives Inspire项目和Archives Unlocked项目进行分析,得出了英国档案数字化建设项目的主要特征为重视建设数字技术的开发与应用、注重数字人才的培养和注重数字档案资源的公开利用,并针对我国档案大数据建设现状提出了加强项目建设、加强人才培养、加强技术应用、加强法制建设等建议,以期为我国推进档案大数据建设提供新思路。

Competing reduction induced homogeneous oxygen doping to unlock MoS_(2)basal planes for faster polysulfides conversion

The parasitic polysulfides shuttle effect greatly hinders the practical application of lithium sulfur batteries,and this issue can be addressed by promoting polysulfides conversion with catalytic materials such as Mo S_(2).However,the catalytic activity of Mo S_(2)mainly relies on edge sites,but is limited by inert basal planes.We herein report a novel,facile,ethylene glycol enabled competing reduction strategy to dope Mo S_(2)homogeneously with oxygen atoms so that its inert basal planes can be unlocked.Ethylene glycol works as a reducing agent and competes with thiourea to react with ammonium molybdate,leading to insufficient sulfuration of Mo,and consequent formation of O-Mo S_(2).Our theoretical and experimental investigations indicate that the homogeneously distributed O dopants can create abundant adsorption/-catalytic sites in the Mo S_(2)basal planes,enlarge the inter-plane distance to promote ion transport,and thus enhance the catalytic conversion of polysulfides.The oxygen doped Mo S_(2)(O-Mo S_(2))is supported on carbon nanosheets(CNS)and the composite(O-Mo S_(2)/CNS)is employed to modify the separator of Li-S battery.It gives the battery an initial discharge capacity of 1537 m Ah g-1at 0.2 C,and the battery retains a discharge capacity of 545 m Ah g-1after ultra-long 2000 cycles at 1 C,corresponding to a very small cyclic decay rate of 0.0237%.Even under a raising sulfur loading of 8.2 mg cm^(-2),the Li-S battery also delivers a high discharge capacity(554 m Ah g^(-1))with outstanding cycle stability(84.6%capacity retention)after 100 cycles at 0.5 C.Our work provides a novel,facile approach to fabricate highly catalytically active oxygen-doped Mo S_(2)for advanced Li-S batteries.

一种PCR抖动检测算法及实现

在数字电视产品开发中,PCR抖动会导致终端音视频数据无法完全正确显示。给出一种基于有限状态机模型的PCR抖动检测算法及在Nucleus嵌入式实时操作系统下实现,该算法及实现在最新高端数字电视芯片上得到实际应用,具有较强的应用价值。

一种PCR抖动检测算法及实现

在实际数字电视产品开发中,PCR抖动会导致终端音视频数据无法完全正确显示。给出了一种基于有限状态机模型的PCR抖动检测算法及在Nucleus嵌入式实时操作系统下实现。该算法及实现在泰鼎多媒体技术有限公司最新高端数字电视芯片上得到了实际应用,具有较强的实际应用价值。

Partial Unlock for COVID-19-Like Epidemics Can Save 1 - 3 Million Lives Worldwide

Background: A large percentage of deaths in an epidemic or pandemic can be due to overshoot of population (herd) immunity, either from the initial peak or from planned or unplanned exit from lockdown or social distancing conditions. Objectives: We study partial unlock or reopening interaction with seasonal effects in a managed epidemic to quantify overshoot effects on small and large unlock steps and discover robust strategies for reducing overshoot. Methods: We simulate partial unlock of social distancing for epidemics over a range of replication factor, immunity duration and seasonality factor for strategies targeting immunity thresholds using overshoot optimization. Results: Seasonality change must be taken into account as one of the steps in an easing sequence, and a two-step unlock, including seasonal effects, minimizes overshoot and deaths. It may cause undershoot, which causes rebounds and assists survival of the pathogen. Conclusions: Partial easing levels, even low levels for economic relief while waiting on a vaccine, have population immunity thresholds based on the reduced replication rates and may experience overshoot as well. We further find a two-step strategy remains highly sensitive to variations in case ratio, replication factor, seasonality and timing. We demonstrate a three or more step strategy is more robust, and conclude that the best possible approach minimizes deaths under a range of likely actual conditions which include public response.

We should Focus on Ways to Unlock Investment

The summit’s theme reflects the shared aspiration of G20 member states to steer the world economy towards a more sustainable path.A key success of the G20 in the aftermath of the financial crisis has been to significantly strengthen the resilience of the global financial system.Now we need to focus on ways in

删除有理 UnLocker痛删顽固文件

笔者是一个软件爱好者,几乎每天都会安装、测试一些新软件,由于软件质量良莠不齐,重装系统是常有的事,这本来没什么,但自从碰到某个文件夹加密的软件后(在这里就不公布软件的名称了,免得大家同时中招),这个软件在硬盘上留下了一些顽固的垃圾文件。

Catholyte engineering to release the capacity of iodide for high-energy-density iodine-based redox flow batteries

Due to the high solubility,high reversibility,and low cost of iodide,iodine-based redox flow batteries(RFBs)are considered to have great potential for upscaling energy storage.However,their further development has been limited by the low capacity of I−as one-third of the I−is used to form I3−(I2I−)during the charging process.Herein,we have demonstrated that the pseudohalide ion,thiocyanate(SCN−),is a promising complexing agent for catholyte of iodinebased RFBs to free up the I−by forming iodine-thiocyanate ions([I2SCN]−)instead of I3−,unlocking the capacity of iodide.Applying this strategy,we have demonstrated iodine-based RFBs with full utilization of iodide to achieve high capacity and high energy density.Both the zinc/iodine RFB and polysulfide/iodine RFB with SCN−complex agent achieve their theoretical capacity of around 160 A h Lposolyte^(−1)(6.0MI−in catholyte).Therefore,the zinc/iodine RFB delivers a high energy density of 221.34Wh Lposolyte^(−1),and the polysulfide/iodine RFB achieves a highenergy density of 165.62Wh Lposolyte^(−1).It is believed that this effective catholyte engineering can be further generalized to other iodine-based RFBs,offering new opportunities to unlock the capacity of iodide and achieve high energy density for energy storage.

The solid lubricating material experiment device for Shenzhou-7 Spaceship

A solid lubricating material exposure experiment in space is one of the missions during the seventh manned spaceflight of China,and the key is to develop a device which can be fixed reliably outside of the orbital module and can be fetched conveniently by an astronaut during space walk.The solid lubricating material experiment device needs to be locked reliably in a vibrating and impacting environment during the launch phase,and should meet the requirement that it can be unlocked and fetched reliably by the astronaut wearing an extravehicular spacesuit via simple operations in orbit in an environment of high and low temperature.As for the device we developed,the environmental characteristic of the mission was analyzed,the mechanical analysis and thermal analysis were carried out,and then a mechanism with functions of mechanical locking,structural self-locking and manual unlocking was designed.The device was verified by a sequence of experiments and was fetched by the astronaut during the flight of the Shenzhou-7 Spaceship.

Unlocking multiplexing in deep tissue

In vivo fluorescence imaging in the second near-infrared (NIR-II)window (1000-1700 nm)has been emerging as a new powerful imaging technique and demonstrated tre- mendous potential in life sciences and biomedical applications,given its advances in reducing photon scattering,light absorption,and autofluorescence [1,2].In particular,extensive efforts have been made to produce various NIR-II probes with different emission wavelengths for multiplexing purposes,as practical applications typically require concurrent detection of multiple analytes.

Unlocking Finances

The Office of the Financial Stability and Development Committee of the State Council,China's cabinet announced 11 new measures to further open up the financial sector on July 20,in the latest move to help bolster and stabilize growth.The new measures cover multiple areas ranging from the bondmarket,banks,insurance companies,brokerage companies to the securities market.

Unlocker:删除顽固文件

Unlocker是一个免费的右键扩充工具,安装后便能整合于鼠标右键的操作中,当使用者发现有某个文件或目录无法删除时,只要按下鼠标右键中的"Unlocker",程序马上就会显示出是哪一些程序占用了该目录或文件。

Doctor Uses the Palm to Unlock the Body's Secrets

THE 1994 trip to Nanjing was of particular significance to Wang Chenxia. In one month, 2,000 patients gathered to receive an ancient form of medical treatment that centers on diagnosis through examination of the palm. Dr. Wang has been called a miracle worker; she has treated m(?)re than 100,000 patients using the palm diagnosis to unlock the secrets of the human body.