樣本不良率 的英文怎麼說

中文拼音 [yàngběnbùliánglǜ]
樣本不良率 英文
sample fraction defective
  • 樣 : Ⅰ名詞1. （形狀） appearance; shape 2. （樣品） sample; model; pattern Ⅱ量詞（表示事物的種類） kind; type
  • 本 : i 名詞1 （草木的莖或根）stem or root of plants 2 （事物的根源）foundation; origin; basis 3 （本錢...
  • 不 : 名詞[書面語] （剁物所用的木墩） a block of wood
  • 良 : Ⅰ名詞1. （善良的人） good people 2. （姓氏） a surname Ⅱ形容詞（好） good; fine; nice Ⅲ副詞（很） very; very much; indeed
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 樣本 : sample book; specimen; advanced copy; sample; muster; scantling; instance; statistics
  1. Using the net assets per capital, the investment return rate, the t - m model, the h - m model, the single factor evaluating model which consists of the treynor index, the jensen index, the sharpe index and the square m index, we evaluate the performance of the twelve mutual funds. and we come to the following conclusions : ( 1 ) after the modification of the risk factor, our mutual funds in the recent one year outguess the market ; ( 2 ) better performance comes from the aid of the government, the improvement of the investment environment and the hard, smart work of the managers especially in the way of selecting some securities in the capital market. ( 3 ) though we make progress, there are still many problems which prevent the further development of our mutual funds such as the devise of the management fee and the characteristics of different funds, all of them divided into the subjective ones and the objective ones

    通過使用投資基金單位凈資產和投資收益率指標、單因素整體績效評估模型，包括treynor指數、 jensen指數、 sharpe指數和業績的m ~ 2測度以及t - m 、 h - m模型對12隻樣本基金進行實證研究，實證研究表明： （ 1 ）經過風險調整后，在最近的一年中，我國證券投資基金的業績總體上優於市場基準組合； （ 2 ）基金業績的提高得益於管理層的重視、投資環境的改善和基金經理的經營，而基金經理的良好業績是通過一定的證券選擇來獲得的； （ 3 ）已成為證券市場上舉足輕重力量的基金在發展過程中雖然取得了一定的成績但其進一步發展還面臨著許多問題，有主觀存在的諸如管理費率的設定、基金風格方面的問題等等，也有客觀存在的諸如證券市場現階段的不完善等等，所以，我們應該抓住《證券投資基金法》問世帶給基金業發展的契機，大力促進證券投資基金規范發展，採取各種措施做大、做優和做強基金業。
  2. The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites

    研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體，需要嚴格控制配方中各種原材料的含量，優化配方;由於粉體活性受預燒條件的影響，所以對不同要求的鐵氧體選擇的預燒條件就不一樣，適當降低預燒溫度有利於獲得較高的起始磁導率，而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求，可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件，本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝，適宜的燒結工藝可以獲得理想微結構和組成，從而得到高性能的鐵氧體材料;而從材料的微結構上來看，要提高材料的截止頻率，就要適當地細化晶粒、增加晶粒內部的氣孔。
  3. Compared with the classical bp algorithm, robust adaptive bp algorithm possesses some advantages as following : ( 1 ) increasing the accuracy of the network training by means of using both the relative and absolute residual to adjust the weight values ; ( 2 ) improve the robustness and the network convergence rate through combining with the robust statistic technique by way of judging the values of the samples " relative residual to establish the energy function so that can suppress the effect on network training because of the samples with high noise disturbances ; ( 3 ) prevent entrapping into the local minima area and obtain the global optimal result owing to setting the learning rate to be the function of the errors and the error gradients when network is trained. the learning rate of the weights update change with the error values of the network adaptively so that can easily get rid of the disadvantage of the classical bp algorithm that is liable to entrap into the local minima areas

    與基本bp演算法相比，本文提出的魯棒自適應bp演算法具有以下優點： （ 1 ）與魯棒統計技術相結合，通過訓練樣本相對偏差的大小，確定不同訓練樣本對能量函數的貢獻，來抑制含高噪聲干擾樣本對網路訓練的不良影響，從而增強訓練的魯棒性，提高網路訓練的收斂速度； （ 2 ）採用相對偏差和絕對偏差兩種偏差形式對權值進行調整，提高了網路的訓練精度； （ 3 ）在採用梯度下降演算法對權值進行調整的基礎上，通過將學習速率設為訓練誤差及誤差梯度的特殊函數，使學習速率依賴于網路訓練時誤差瞬時的變化而自適應的改變，從而可以克服基本bp演算法容易陷入局部極小區域的弊端，使訓練過程能夠很快的「跳出」局部極小區域而達到全局最優。
  4. Traditional methods for measuring fraction of nonconformities become inapplicable for those high quality processes since any manufacturing sample of reasonable size likely contains no defective product items

    然而，由於在這些高質量製程（不良品種通常用百萬分之一?衡量單位）所取出適當大小的樣本中幾乎沒有不良品，因此常規用來衡量這些低不良率製程的方法變得沒有效率且不適用。
  5. There will be a great future if we integrate solar energy utilization techniques into heat pump techniques. on the base of integrating the two techniques, the paper analyzed the art trait of heat pump water heater, the manner of integration, the essential theory ; and developed a small capacity direct expansion solar - assisted heat pump water heater, and tested its thermal performance on the condition of different weather such as sunshine, overcast sky & night. the results make clear a small capacity direct expansion solar - assisted heat pump water heater can absorb not only solar energy but heat energy in air ; it takes on favorable thermal performance, on the condition of different weather such as sunshine, overcast sky & night, coph is about between 3. 5 ~ 5. 0, eer is about between 2. 5 ~ 4. 5, these are better than traditional air source heat pump water heater and non - direct expansion solar - assisted heat pump water heater, and it takes between 2 and 3 kwh to heat 270 kg water from 20 c to 50 c, it is very great in terms of saving energy and protecting environment,

    本文在結合太陽能利用與熱泵技術的基礎上，分析研究了太陽能熱泵熱水系統的技術特點；太陽能集熱系統與熱泵系統的結合方式；直接蒸發式太陽能熱泵熱水系統的基本理論；研製出小功率直接蒸發式太陽能熱泵熱水系統樣機，並在晴天、陰天、夜晚等不同的天氣情況下對其進行了試驗，實驗結果表明：本小功率直接蒸發式太陽能熱泵熱水系統不但可以有效地吸收太陽能，還能有效地吸收空氣中的能量，具有良好的熱性能，在不同的天氣情況下，其制熱系數cop _ h大約在3 . 5 5 . 0之間，優于傳統的空氣熱泵和非直接蒸發式太陽能熱泵熱水系統：其效能比eer大約在2 . 5 4 . 5之間，將270kg水從20加熱到50隻需用電2 3度，節能及環保效果明顯。
  6. Based on all kinds of professional components of gis can be seen in the market, which are mapobjects and arcobjects of esri, mapx of mapinfo, geomedia of intergraph, mapgis of wuhan, supermap of peking, etc. the functions and background of the electronic map system, arcgis, which is an object - oriented program language, is integrated the latest computer technologies and gis technologies. ao is object oriented language, supported by the functions of arranging, analysis, display of spatial data and enhances the application efficiency, most users, which are not familiars with the knowledge of complicated concept and operation of gis, can use it freely. so the author selects vb and ao to develop application system of gis

    分析市場上可以看到各種各樣的gis專業組件，例如esri的mapobjects和arcobjects 、 mapinfo的mapx 、 intergraph的geomedia 、武漢的mapgis 、北京的supermap等，從人口電子地圖系統的產生背景和功能要求出發，根據arcgis將目前前沿的一些計算機技術、 gis技術很好地融合起來，並且由於ao是使用面向對象技術的開發語言，且又提供完備的空間數據的分析、處理、顯示等功能，可以有效地提高應用系統的開發效率，且具有良好的外觀和完善的功能，使用戶不再需要復雜的gis概念和操作就可使用，所以，本系統的研製選擇了vb和ao相結合的開發方式。
  7. However, the research of logistics in our country is still lacking. there are some shortages in the logistics operation management, information modernization, production model and storage model, which leading to unbalance to the logistics of enterprise, inefficiency to the system, increase of opportunity cost, and harm to the development of company

    例如在製造企業中，存在物流作業管理、監控不完善，信息現代化程度低，生產模型不合理，倉儲分類、管理無序化等不足，這樣在生產中形成了多處瓶頸，使企業內物流不平衡，系統效率的提高受到約束，產生巨大的機會成本，給企業帶來諸多不良影響。
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