<strike id="e8ym0"></strike>
SQL Performance Tuning is a handbook of practical solutions for busy database professionals charged with managing an organization s critically important data. Covering today s most popular and widely installed database environments, this book is an indispensable resource for managing and tuning SQL across multiple platforms.
標(biāo)簽： professionals Performance practical solutions
上傳時(shí)間： 2013-12-20
上傳用戶：jjj0202
This report presents a tutorial of fundamental array processing and beamforming theory relevant to microphone array speech processing. A microphone array consists of multiple microphones placed at different spatial locations. Built upon a knowledge of sound propagation principles, the multiple inputs can be manipulated to enhance or attenuate signals emanating from particular directions. In this way, microphone arrays provide a means of enhancing a desired signal in the presence of corrupting noise sources. Moreover, this enhancement is based purely on knowledge of the source location, and so microphone array techniques are applicable to a wide variety of noise types. Microphone arrays have great potential in practical applications of speech processing, due to their ability to provide both noise robustness and hands-free signal acquisition.
標(biāo)簽： Microphone array Tutorial Array Signal Processing
上傳時(shí)間： 2016-06-12
上傳用戶：halias
evolution computing 現(xiàn)在最火的一篇論文 Handling Multiple Objectives With Particle Swarm Optimization
上傳時(shí)間： 2016-07-01
上傳用戶：白水煮瓜子
msp430The LDC1312 and LDC1314 are 2- and 4-channel, 1? Easy-to-use – minimal configuration required 12-bit inductance to digital converters (LDCs) for ? Measure up to 4 sensors with one IC inductive sensing solutions. With multiple channels ? Multiple channels support environmental and and support for remote sensing, the LDC1312 and aging compensation LDC1314 enable the performance and reliability benefits of inductive sensing to be realized at minimal? Multi-channel remote sensing provides lowest cost and power. The products are easy to use, onlysystem cost requiring that the sensor frequency be within 1 kHz ? Pin-compatible medium and high-resolution and 10 MHz to begin sensing. The wide 1 kHz to 10 options MHz sensor frequency range also enables use of very small PCB coils, further reducing sensing– LDC1312/4: 2/4-ch 12-bit LDC solution cost and size.– LDC1612/4: 2/4-ch 28
上傳時(shí)間： 2016-07-22
上傳用戶：tongmoonsky
V1.16 Win32 July 2012 - Ported to Win32 C++ - Allow multiple instances of libnids to coexist in the same process - Incorporate unofficial patch to track established TCP connections - Migration of calls to secure versions (i.e. strcpy to strcpy_s) - Compiles under Visual Studio 2010 with no warnings at W4 - Linux support well and truly broken, Linux specific code removed
標(biāo)簽： libnids-Win32
上傳時(shí)間： 2016-07-30
上傳用戶：mxgg126
We consider the problem of target localization by a network of passive sensors. When an unknown target emits an acoustic or a radio signal, its position can be localized with multiple sensors using the time difference of arrival (TDOA) information. In this paper, we consider the maximum likelihood formulation of this target localization problem and provide efficient convex relaxations for this nonconvex optimization problem.We also propose a formulation for robust target localization in the presence of sensor location errors. Two Cramer-Rao bounds are derived corresponding to situations with and without sensor node location errors. Simulation results confirm the efficiency and superior performance of the convex relaxation approach as compared to the existing least squares based approach when large sensor node location errors are present.
標(biāo)簽： 傳感器網(wǎng)絡(luò)
上傳時(shí)間： 2016-11-27
上傳用戶：xxmluo
產(chǎn)品品牌：VINTEK/元泰/VINKA —— -原廠直銷，樣品免費(fèi)，技術(shù)支持，大量現(xiàn)貨！ 產(chǎn)品型號(hào)：VK3809IP 封裝形式：SOP16貼片 產(chǎn)品年份：新年份 聯(lián) 系 人：許先生 聯(lián) 系 QQ：1918885898 聯(lián)系手機(jī)：18898582398 原廠直銷觸摸觸控感應(yīng)芯片，多種形式選擇更專業(yè)，原裝正品保障，價(jià)格更具優(yōu)勢(shì)！ 概述 VK3809IP 是一款9感應(yīng)通道高抗干擾的觸摸IC，工作電壓：2.5V-5.5V，工作電流：1.1MA-3V，IIC/INT通訊口。可設(shè)置為9個(gè)獨(dú)立按鍵或者最多3組滑條，可通過IIC設(shè)置工作模式和參數(shù)，可以通過CAP腳電容調(diào)節(jié)靈敏度。封裝是SOP16。應(yīng)用于大小家電，門禁監(jiān)控和消費(fèi)類電子。 ★軟件簡(jiǎn)介: 此軟件系提供給客戶一個(gè)簡(jiǎn)易設(shè)定的滑條按鍵應(yīng)用方案。客戶只要使用 IIC 通訊格式，即可設(shè)定并讀取滑條按鍵及獨(dú)立按鍵觸摸數(shù)據(jù)。 特色 : 1.此應(yīng)用使用 16 個(gè) Touch Pad 讓客戶可依照設(shè)計(jì)上的需求進(jìn)行規(guī)劃。16 個(gè) Touch PAD 可規(guī)劃為滑條按鍵或是獨(dú)立按鍵，滑條多可規(guī)劃為 3 組滑條。當(dāng)無(wú)滑條按鍵設(shè)定時(shí)，16 Key 都可做獨(dú)立按鍵使用。 2.修改設(shè)定參數(shù)的方式有兩種，用戶可配合 USB PCLink Board 來調(diào)整滑條按鍵 觸摸靈敏度等參數(shù)，然后利用 IIC 寫入指令來修改設(shè)定參數(shù)。 3.程序的獨(dú)立按鍵輸出模式有兩種 Multiple 以及 Single，當(dāng)選則為Multiple 時(shí)會(huì)將所有按下的按鍵輸出，而選擇 Single 時(shí)只會(huì)輸出第一個(gè)按下的按鍵，當(dāng)按鍵被放開時(shí)，才會(huì)輸出下一個(gè)按鍵。 4.設(shè)計(jì)有省電模式，適合用在如遙控器等需要長(zhǎng)時(shí)間待機(jī)的應(yīng)用。 5.有 4 組 Slave address，可由外部開關(guān)切換。 產(chǎn)品應(yīng)用范圍： 大小家電 門禁監(jiān)控設(shè)備 消費(fèi)類電子 ●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●● 產(chǎn)品品牌：VINTEK/元泰/VINKA —— -原廠直銷，樣品免費(fèi)，技術(shù)支持，大量現(xiàn)貨！ 產(chǎn)品型號(hào)：VK3813IP 封裝形式：SSOP20貼片 產(chǎn)品年份：新年份 聯(lián) 系 人：許先生 聯(lián) 系 QQ：1918885898 聯(lián)系手機(jī)：18898582398 原廠直銷觸摸觸控感應(yīng)芯片，多種形式選擇更專業(yè)，原裝正品保障，價(jià)格更具優(yōu)勢(shì)！ 概述 VK3813IP 是一款13感應(yīng)通道高抗干擾的觸摸IC，工作電壓：2.5V-5.5V，工作電流：1.1MA-3V，IIC/INT通訊口。可設(shè)置為13個(gè)獨(dú)立按鍵或者最多3組滑條，可通過IIC設(shè)置工作模式和參數(shù)，可以通過CAP腳電容調(diào)節(jié)靈敏度。封裝是SSOP20。應(yīng)用于大小家電，門禁監(jiān)控和消費(fèi)類電子。 特色 : 1. 此應(yīng)用使用 13 個(gè) Touch Pad 讓客戶可依照設(shè)計(jì)上的需求進(jìn)行劃。13 個(gè) Touch PAD 可規(guī)劃為滑條按鍵或是獨(dú)立按鍵，滑條多可規(guī)劃為 3 組滑條。當(dāng)無(wú)滑條按鍵設(shè)定時(shí)，13 Key 都可做獨(dú)立按鍵使用。 2.修改設(shè)定參數(shù)的方式有兩種，用戶可配合 USB PCLink Board 來調(diào)整滑條按鍵觸摸靈敏度等參數(shù)，然后利用 IIC 寫入指令來修改設(shè)定參數(shù)。 3.程序的獨(dú)立按鍵輸出模式有兩種 Multiple 以及 Single，當(dāng)選則為Multiple 時(shí)會(huì)將所有按下的按鍵輸出，而選擇 Single 時(shí)只會(huì)輸出第一個(gè)按下的按鍵，當(dāng)按鍵被放開時(shí)，才會(huì)輸出下一個(gè)按鍵。 4. 設(shè)計(jì)有省電模式，適合用在如遙控器等需要長(zhǎng)時(shí)間待機(jī)的應(yīng)用。 產(chǎn)品應(yīng)用范圍： 大小家電 門禁監(jiān)控設(shè)備和消費(fèi)類電子 ●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●● 產(chǎn)品品牌：VINTEK/元泰/VINKA —— -原廠直銷，樣品免費(fèi)，技術(shù)支持，大量現(xiàn)貨！ 產(chǎn)品型號(hào)：VK3816IP 封裝形式：SSOP28貼片 產(chǎn)品年份：新年份 聯(lián) 系 人：許先生 聯(lián) 系 QQ：1918885898 聯(lián)系手機(jī)：18898582398 原廠直銷觸摸觸控感應(yīng)芯片，多種形式選擇更專業(yè)，原裝正品保障，價(jià)格更具優(yōu)勢(shì)！ 概述 VK3816IP 是一款16感應(yīng)通道高抗干擾的觸摸IC，工作電壓：2.5V-5.5V，工作電流：1.1MA-3V，IIC/INT通訊口。可設(shè)置為16個(gè)獨(dú)立按鍵或者最多3組滑條，IIC設(shè)備地址可通過2個(gè)輸入腳設(shè)置，可通過IIC設(shè)置工作模式和參數(shù)，可以通過CAP腳電容調(diào)節(jié)靈敏度。封裝是SSOP28。應(yīng)用于大小家電，門禁監(jiān)控和消費(fèi)類電子。 特色 : 1. 此應(yīng)用使用 16 個(gè) Touch Pad 讓客戶可依照設(shè)計(jì)上的需求進(jìn)行規(guī)劃。16 個(gè) Touch PAD 可規(guī)劃為滑條按鍵或是獨(dú)立按鍵，滑條多可規(guī)劃為 3 組滑條。當(dāng)無(wú)滑條按鍵設(shè)定時(shí)，16 Key 都可做獨(dú)立按鍵使用。 2. 修改設(shè)定參數(shù)的方式有兩種，用戶可配合 USB PCLink Board 來調(diào)整滑條按鍵觸摸靈敏度等參數(shù)，然后利用 IIC 寫入指令來修改設(shè)定參數(shù)。 3. 程序的獨(dú)立按鍵輸出模式有兩種 Multiple 以及 Single，當(dāng)選則為Multiple 時(shí)會(huì)將所有按下的按鍵輸出，而選擇 Single 時(shí)只會(huì)輸出第一個(gè)按下的按鍵，當(dāng)按鍵被放開時(shí)，才會(huì)輸出下一個(gè)按鍵。 4. 設(shè)計(jì)有省電模式，適合用在如遙控器等需要長(zhǎng)時(shí)間待機(jī)的應(yīng)用。 5. 有 4 組 Slave address，可由外部開關(guān)切換。 產(chǎn)品應(yīng)用范圍： 大小家電門 禁監(jiān)控設(shè)備 消費(fèi)類電子
標(biāo)簽： 原裝正品 工程技術(shù)支持
上傳時(shí)間： 2018-12-12
上傳用戶：shubashushi66
產(chǎn)品品牌：VINTEK/元泰/VINKA —— -原廠直銷，樣品免費(fèi)，技術(shù)支持，大量現(xiàn)貨！ 產(chǎn)品型號(hào)：VK3813IP 封裝形式：SSOP20貼片 產(chǎn)品年份：新年份 聯(lián) 系 人：許先生 聯(lián) 系 QQ：1918885898 聯(lián)系手機(jī)：18898582398 原廠直銷觸摸觸控感應(yīng)芯片，多種形式選擇更專業(yè)，原裝正品保障，價(jià)格更具優(yōu)勢(shì)！ 概述 VK3813IP 是一款13感應(yīng)通道高抗干擾的觸摸IC，工作電壓：2.5V-5.5V，工作電流：1.1MA-3V，IIC/INT通訊口。可設(shè)置為13個(gè)獨(dú)立按鍵或者最多3組滑條，可通過IIC設(shè)置工作模式和參數(shù)，可以通過CAP腳電容調(diào)節(jié)靈敏度。封裝是SSOP20。應(yīng)用于大小家電，門禁監(jiān)控和消費(fèi)類電子。 特色 : 1. 此應(yīng)用使用 13 個(gè) Touch Pad 讓客戶可依照設(shè)計(jì)上的需求進(jìn)行劃。13 個(gè) Touch PAD 可規(guī)劃為滑條按鍵或是獨(dú)立按鍵，滑條多可規(guī)劃為 3 組滑條。當(dāng)無(wú)滑條按鍵設(shè)定時(shí)，13 Key 都可做獨(dú)立按鍵使用。 2.修改設(shè)定參數(shù)的方式有兩種，用戶可配合 USB PCLink Board 來調(diào)整滑條按鍵觸摸靈敏度等參數(shù)，然后利用 IIC 寫入指令來修改設(shè)定參數(shù)。 3.程序的獨(dú)立按鍵輸出模式有兩種 Multiple 以及 Single，當(dāng)選則為Multiple 時(shí)會(huì)將所有按下的按鍵輸出，而選擇 Single 時(shí)只會(huì)輸出第一個(gè)按下的按鍵，當(dāng)按鍵被放開時(shí)，才會(huì)輸出下一個(gè)按鍵。 4. 設(shè)計(jì)有省電模式，適合用在如遙控器等需要長(zhǎng)時(shí)間待機(jī)的應(yīng)用。 產(chǎn)品應(yīng)用范圍： 大小家電 門禁監(jiān)控設(shè)備和消費(fèi)類電子
標(biāo)簽： 高抗干擾 觸摸芯片
上傳時(shí)間： 2018-12-12
上傳用戶：shubashushi66
Smart Grids provide many benefits for society. Reliability, observability across the energy distribution system and the exchange of information between devices are just some of the features that make Smart Grids so attractive. One of the main products of a Smart Grid is to data. The amount of data available nowadays increases fast and carries several kinds of information. Smart metres allow engineers to perform multiple measurements and analyse such data. For example, information about consumption, power quality and digital protection, among others, can be extracted. However, the main challenge in extracting information from data arises from the data quality. In fact, many sectors of the society can benefit from such data. Hence, this information needs to be properly stored and readily available. In this chapter, we will address the main concepts involving Technology Information, Data Mining, Big Data and clustering for deploying information on Smart Grids.
標(biāo)簽： Processing Cities Smart Data in
上傳時(shí)間： 2020-05-23
上傳用戶：shancjb
Smart Grids provide many benefits for society. Reliability, observability across the energy distribution system and the exchange of information between devices are just some of the features that make Smart Grids so attractive. One of the main products of a Smart Grid is to data. The amount of data available nowadays increases fast and carries several kinds of information. Smart metres allow engineers to perform multiple measurements and analyse such data. For example, information about consumption, power quality and digital protection, among others, can be extracted. However, the main challenge in extracting information from data arises from the data quality. In fact, many sectors of the society can benefit from such data. Hence, this information needs to be properly stored and readily available. In this chapter, we will address the main concepts involving Technology Information, Data Mining, Big Data and clustering for deploying information on Smart Grids.
標(biāo)簽： Processing Cities Smart Data
上傳時(shí)間： 2020-05-25
上傳用戶：shancjb
蟲蟲下載站版權(quán)所有 京ICP備2021023401號(hào)-1
