block channels 中文意思是什麼
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The toxin can reversible block the neuromuscular transmission in an isolated mouse phrenic nerve - diaphragm preparation and also is a neurotoxin ( n - type ca2 + channels inhibitor ) which binds to the postsynaptic nicotinic acetylcholine receptor ( nachr )
溶液構象研究表明，它採取自然界中其它蛋白質多肽普遍採用的一種緊湊、緻密的抑制劑胱氨酸結模體（ ick ） 。 -
They can block air passages or sinus channels to cause a variety of grief.
它們能阻塞氣道或鼻竇的通道，造成各種痛苦。 -
These results support strongly the view that mg2 + can block many channels and it has antagonistic action to ca2 +
這一結果支持鎂離子對鈣離子的拮抗效應這一結論。 -
Through stimulate the body apparatus, it helps to promote the blood circulation, to improve the ion density of blood. in this way to improve the metabolism and to make the channels of the body free from block
通過對人體各個器官產生刺激反射作用，促進人體經絡通暢，改善血液離子濃度，從而達到促進新陳代謝，活化經絡水腫之目的。 -
Through stimulate the body apparatus, it helps to promote the blood circulation, to improve the ion density of the blood. in this way to improve the metabolism and to make the channels of the body free from block
通過對人體各個器官產生刺激反射作用，促進人體經絡通暢，改善血液離子濃度，從而達到促進新陳代謝，活化經絡水腫之目的。 -
This thesis analyzed the error performance of mfsk and mpsk modulator in hf with optimal receiver, studied the shortcoming and strongpoint of several typical short - wave data transmission systems and their performance over fading and intersymbol interference channels. the theory and key technical of adaptive modem is discussed. in the last, an efficient modulation scheme - block coded modulation is introduced into hf radio systems to improve the efficiency of hf data transmission, this paper also proposes a hf data transmission system scheme composed of a block coded modulator and a decision feedback type adaptive equalizer
本文在對短波數傳兩種常見調制方式fsk及psk最佳解調性能分析的基礎上，討論了幾種採用典型調制技術的短波數傳系統（如時頻調制、多進制頻移鍵控慢跳頻、 chess系統）原理、優缺點以及抗衰落和抗符號間干擾的性能；分析了自適應串列數傳系統抗短波通道衰落和多徑干擾的原理、關鍵技術；在本文的最後引入一種有望解決短波數傳系統低效率狀況的調制方式bcm -分組編碼調制，給出了一個採用bcm技術與自適應均衡技術相結合的短波數傳系統方案，並通過計算機模擬進行了初部驗證。 -
In this way to improve the metabolism and to make the channels of the body free from block. features : infrared heating function, magnetic massage head bring the thumb - pressing massage and knocking massage
利用機體自身重量為您帶來滲透式的捶打按摩效果，並且本機具有按摩面積大之特點，能減輕運動后的肌肉緊繃感，及有效緩解精神緊張所造成的疲勞和酸痛。 -
These anaesthetics block sodium channels and thereby the excitability of all neurons, not just sensory neurons
這些局麻劑可以阻斷鈉通道，因此不僅僅阻滯了感覺神經元，也同時阻滯了幾乎所有其他神經元的興奮性。 -
Then the performance for sttc in multipath and time - dispersive fading channels is derived. in chapter 5, space - time block coding ( stbc ) is studied
研究了空時格狀編碼在多路徑和時間色散的衰落通道中的性能，得到它的性能限。 -
During soleus exposing to high - frequency stimulation, potassium ions accumulation and sodium ions exhausting are formed rapidly in t - tubule. the ion concentration alterations in t - tubule lead to a depolarization block of t - tubular action potential, then inhibit the function of l - type ca2 + channels
萎縮使sol肌纖維t管內k ~ +更易集聚， na ~ +更易耗竭，動作電位由t管向內傳導易受到阻滯，從而使l型鈣離子通道功能受抑制。 -
Approximations analysis for the capacity of orthogonal space - time block codes over correlated fading channels
相關衰落下正交空時分組碼容量的近似分析 -
Combined with the adaptive modulation and coding technology, this algorithm reallocates the residual power by effectively utilizing the discrete modulation orders according to the different priorities of sub - channels under the limitation of quality of service over the block fading channel
在滿足服務質量要求的前提下充分利用星座圖尺寸的離散性，將殘余功率按照各子通道的不同優先級進行二次分配，並結合自適應調制編碼技術改善低信噪比時的系統吞吐量。 -
“ also, i want a v - chip installed in every executive to block access to channels of negative thought
「另外，我想在每一個執行者的大腦內裝一個v形晶元，阻止他們的一些負面想法。 」 -
Space - time block codes ( stbc ) based on orthogonal design has attracts enough attentions in its applications in mimo - ofdm systems for its full diversity exploiting and low coding / decoding complexity. these applications include not only system performance improvement, but also reduction of the peak to average power ratio in mimo - ofdm systems. under these backgrounds, this paper first studies space - time block codes under the single carrier, flat fading situation, discusses the encoding / decoding principle and its performance under different channels. then, the author focused on the performance of space - time codes under time selective and frequency selective channels, uncovered the fundamental cause of how maximum doppler shift and power delay profile influences the performance of space - time codes through deduction and simulation
在上述背景下，本文以單載波，平坦衰落通道下的空時分組碼為切入點，深入分析了其編譯碼原理和在不同通道情況下的性能;以此為基礎，後文展開了對空時分組碼在多載波，時間選擇性和頻率選擇性衰落通道下的性能研究，通過理論推導和充分的模擬，揭示了空時/頻分組碼在時頻選擇性衰落通道中的性能變化的根本原因;在以上對多載波系統中空時分組碼的研究的過程中，作者發現了空時分組碼在降低系統峰平比方面應用的可行性，提出了一種降低峰平比的新方法。
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