d factor 中文意思是什麼

Modest loneliness may motivate one ' s activities and thus play a positive role, d ) a questionnaire of the loneliness structure of college students in henan province has been developed in this study and it proves to have high reliability and validity by means of exploratory factor analysis and confirmative factor analysis. implications for future research are discussed

這與西方學者僅將大學生作為成人被試來研究成人孤獨感（不考慮發展）的視角不同，可以說在成人孤獨感的研究中吸收了西方學者關于兒童青少年孤獨感的研究優點（關注發展問題） ，而這更符合我國大學生發展的實際情況。

Monitor apparatus can measure valid value of three phase voltage and current, power factor, three phase disequilibrium, instant flecker of short time and harmonic without twenty, degree and harmonic distortion total. the paper are laid on the following. ( 1 ) master plan and function of circuit, ( 2 ) hardware design including circuit and principle of a / d conversion, phase lock, liquid crystal display and keystroke and so on, ( 3 ) design of system software including digital filtering, fft, a / d conversion and monitor interface of pc, ( 4 ) system test

監測儀能夠完成包括三相電壓、三相電流的有效值、功率因數、三相不平衡、電壓短期閃變、以及20次內的諧波、諧波相位、諧波失真總量等的測量。論文重點介紹了以下幾部分： （ 1 ）電路的總體設計和功能； （ 2 ）硬體設計，包括a d轉換、鎖相環、液晶顯示和按鍵輸入等原理和電路。 （ 3 ）系統軟體設計，包括a d轉換、 fft 、數字濾波等程序的原理和演算法以及上位機監控界面的設計； （ 4 ）系統測試。

Following the research route of mend with study and development with creation, give the definition of risk and the methods of risk identifying, divide the risk attitude into risk loving, risk neutralism and risk avoiding, point out the importance of enhancing the risk consciousness for lightning hazard, and summarize the mechanisms of lightning hazard the theories and methods of risk assessment for lightning hazard. provide a set of risk assessment parameters for lightning hazard, which includes lightning times n, hazard probability p, hazard loss d, hazard risk r and protection efficiency e, and give the definition, decisive factor, value method and value scope of each parameter. establish a risk assessment model for lightning hazard which includes lightning hazard base module, lightning hazard probability module, lightning hazard loss module, lightning hazard accepted risk module, lightning protection cost module, correcting coefficient module, lightning hazard risk module, and lightning protection class and efficiency module

遵循借鑒改造和發展創新的研究思路，給出了風險的定義和風險識別的方法，將風險態度分為風險喜好型、風險中庸型和風險逃避型，指出了提高雷電災害風險意識的重要性，總結了雷電災害的作用機制和雷電災害風險評估的理論與方法；提供了包括雷擊次數n 、雷災概率p 、雷災損失d 、雷災風險r和雷電防護級別與防護效率e等5類基本參數的雷電災害風險評估參數體系，並給出了各個參數的定義、參數的決定因素和取值方法以及取值范圍；設計了包括雷電災害基礎模塊、雷電災害概率評估模塊、雷電災害損失評估模塊、雷電災害允許風險評估模塊、雷電防護成本評估模塊、校正系數模塊、雷電災害風險評估模塊、雷電防護級別與效率分析模塊等8個模塊的雷電災害風險評估模型，評估模型以iec61662的評估模型為基本參考，以雷災損失d為中心，把雷災風險劃分為經濟雷災風險r _ e和人身雷災風險r _ l ，並對r _ e和r _ l分開單獨處理。

Referring to " career development inventory " of d. e. super and interviewing, by the principles and techniques of psychometrics and statistics, such as investigation and factor analysis, this study revises and validates " career development inventory " of john o. crites, and works out a career maturity questionnaire suited to chinese youth

的《職業發展量表》 （ 1988 ）和訪談的基礎上，通過問卷調查、因子分析等測量學和統計學原理，對crites ， johno的《職業成熟度量表》 （ 1995 ）進行修訂和檢驗，研製出適合我國青年人的職業成熟度問卷。

Niche breadth of four dominate populations at three age groups was studied by the methods of resource utilization ability and ratio. the result shows that : symplocos sectchuanensis is a typical gengeration species whi ch resource utilization ability is strong, and distribution is wide. meanwhile, go rdonia acuminata, castanopsis fargesis and pinus massoniana specialized at some d egree in resource utilizationm, their distribution is limited. especially, the ju venile of pinus massoniana specialized outstandingly. with the devlopment of pinu s massoniana, which is the pioneer population in mt. jinyun, the environment become s unfit to it ' s juvenile. it turns to needle and evergreen broad - leaves mixed fo r est. because the tolerance toward shading of gordonia acuminata is lower than tha t of castanopsis fargesis, gordonia acuminata will be substituted by castanopsis fargesis and other evergreen broad - leaves species are the edificators. the popul ation ' s ability of resource utilization is the inner factor of population distri bution and community succession. the distribution of light and the concentrate of nutrient ( such as n ) is the outer factors of community succession

對縉雲山森林植被的4個優勢種群3個年齡級生態位寬度進行了研究.結果表明，川灰木利用資源的能力最強、分佈廣，為典型的泛化種.大頭茶、栲樹、馬尾松對資源的利用在一定程度上特化，分佈上有一定的局限性.馬尾松的中齡組與幼齡組特化現象十分顯著.縉雲山森林植被的先鋒種馬尾松的發展，導致環境的改變不適于其幼齡個體的生長，群落演替到針闊葉混交林階段，最後發展為以栲樹等為建群種的常綠闊葉林.種群的資源利用能力，是種群分佈與群落演替的內在原因，光因子和營養元素（如n ）是群落演替的主要外部動力

Firstly, the theory summarize of r & d project evaluation and performance measurement are done, the limitation and shortage of traditional evaluation and measurement is pointed out ; afterward, the purpose and content, the methodologies and classify, the basic principle and work procedure, the reporting and organizing are dissertated ; and then, the influence factor and the main parameter of the r & d project performance measurement are analyzed, the index of performance measurement are discussed emphatically, based on this, a dynamic and effective r & d project performance measurement system is developed, it comprises designing, implementing and updating performance measurement systems ; at last, the development current of r & d project evaluation and performance measurement is discussed and the conclusion of this paper is made

首先，本文對r & d項目評估和績效測度進行了理論綜述，指出了傳統評估與測度的缺陷與不足；然後，論述了r & d項目評估的目的和內容、方法和分類、基本原則和工作程序、組織與報告工作；其次，分析了r & d項目績效測度的權變因素和主要參數，重點探討了測度指標，並在此基礎上開發了一個動態有效的r & d項目績效測度系統，包括對r & d項目績效測度系統的設計、實施和更新；最後，探討了r & d項目評估與績效測度的發展趨勢並得出了本文的結論。

Tan insulating liquids - measurement of relative permittivity, dielectric dissipation factor and d. c. resistivity

絕緣液體.相對電容率電介質損耗因數

Tan insulating liquids - measurement of relative permittivity, dielectric dissipation factor tan delta and d. c. resistivity

絕緣液體.相對電容率電介質損耗因數

Finally, niutoushan double - curvature arch dam was modeled and 3 - d fem simulation analysis was performed, so as to find out the integral safety factor and the stress and displacement patterns of dam and its foundation under different load combination

最後，對牛頭山水電站雙曲拱壩進行了有限元建模和三維非線性有限元模擬分析，計算分析了各種情況下壩體和基巖的應力位移規律，對大壩的整體安全度進行了綜合評判。

3 ) a 3 - d geometry and finite element model of the assembly of the obturator of the breech mechanism is established. quasi - static and dynamic finite element analysis of stiffness, strength and obturating performance of the obturator of the breech mechanism is carried out, based on elastoplastic theory and multi - body contact algorithm, and the simulation results coincide with experimental results, further, th e effect of friction factor on its obturating performance is investigated

建立了炮閂閉氣結構的三維裝配體幾何實體模型和有限元模型，對炮閂閉氣結構剛強度和閉氣性能進行了準靜態及動態多體接觸彈塑性有限元分析，分析結果與試驗結果相吻合，進一步研究了摩擦系數對其閉氣性能的影響。

Had we chosen d = 2km as used in the data analysis in this study, the growth rate would have been a factor 2 smaller

如果當時選取象用於本文的資料中的那樣d = 2公里，則生長率就會小一半。

This paper applies nonlinear finite element program bsnfem to analyze the behaviors of eccentrically braced steel frames under cyclic load. the study that comprehensive and systematic analyze the factor of links length, thickness of links flange, distance of links rib, thickness of links rib and angle of brace to be changed affect energy - dissipation capacity of d shape and k shape eccentrically braced steel frames have been some studied before. this paper fills the black in the filed factor of high - span ratio, brace stiffness and brace - to - beam connections to be changed affect energy - dissipation capacity of d shape and k shape eccentrically braced steel trames and any factor to be changed affect energy - dissipation capacity of y shape eccentrically braced steel frames

對耗能梁段的長度、耗能梁段腹板的厚度、耗能梁段翼緣的厚度、耗能梁段加勁肋的間距、耗能梁段加勁肋的厚度、支撐的夾角等因素的改變對d形、 k形偏心支撐鋼框架耗能的影響，前人已有一些研究，本文對這些因素的影響進行了全面系統的分析，完善了理論分析的不足；而結構高跨比、支撐剛度、支撐與梁的連接形式等因素對d形、 k形偏心支撐鋼框架破壞機理的研究以及各種因素對y形偏心支撐鋼框架破壞機理的影響，則很少有人涉及，本文對此也進行了深入系統的分析，填補了這一研究空白。

By the relationship between d, 18o, br / cl and cl ' s consistency, explain that the film percolation effect is not the major factor controlling oil gas water in the jurassic system

利用川西前陸盆地侏羅系氣田水d 、 ~ （ 18 ） 0 、 br cl與cl ~ -濃度的關系，說明薄膜滲濾作用不是控制其成因的主要因素。

We have made a full theoretical analysis of the wave property and the wave parameters of the flap - type wave generator in the towing tank of our school, and confirmed that should make the factor that the performance of the wave generator give play to normally to influence. in allusion to that the old wave generator can not simulate sea wave, upgrade and transform to this system change the control computer system and install additional d / a change card, redesign the wave control interface and transmission means of control signal, give up the disk machine that can not be used, make the wave - making control voltage signal that has translated direct input the wave controller, make wave controller to make waves through servo system

對我校船模水池原有的搖板式造波系統的性能進行了理論分析，針對水池原有造波機系統模擬海浪的不足，對該系統進行升級與改造，更換了主控計算機並加裝d a轉換卡，重新設計了造波控制信號的介面與傳輸方式，捨去了原系統中現已淘汰的磁盤機，使轉換后的造波控制電壓信號直接輸入到造波控制器中，再由造波控制器通過液壓伺服系統驅動造波板進行造波。

This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題，主要研究內容有： （ 1 ）實驗、測定了20種常見生物質的能量（發熱量）和c 、 h 、 n元素含量，根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式，並通過r _ （ 0 . 05 ）檢驗；為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便； （ 2 ）選擇了8種生物質試樣作了等加熱速率（ 10 min 、 20 min 、 40 min 、 60 min ）和恆溫加熱的tg和dtg實驗，根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程，並採用goast - redfem積分法和p函數對其動力學參數進行了求解，解析出各種生物質的頻率因子和活化能參數，進而建立了各種生物質的熱解動力學模型，為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述，提供了理論和依據； （ 3 ）為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間，在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定，得出生物質的長徑比（ l d ）一般在5 . 0 6 . 0之間，平均為5 . 3的結果； （ 4 ）採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究，解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間（ t ） ，得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果，為閃速熱解反應器固相滯留時間設計和預測提供了理論依據； （ 5 ）根據上述實驗結果，綜合運用工程力學、工程材料、機械設計學原理，推導、建立了轉錐式閃速熱解反應器物料滯留時間（ ）與轉速（或頻率）合理匹配理論； （ 6 ）提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。

This paper chooses the indicators of economy and land quality input which has influence on the output, depending on cd - productive function to establish the function between input and output : y : productive forces of the cultivated land f : input of the fertilizer and agricultural chemical i : input of the irrigation l : input of the labor q : input of the land quality a : the level of average management t : the level of changing management a, b, c, d, f : productive elasticity coefficient the factor of the land quality includes texture, content of the organic matter, degree of the pickled, the structure of the soil

本項研究選擇了影響農用地總產出的經濟投入指標和土地質量投入指標，藉助c - d生產函數，建立土地投入產出的函數關系： y = a ? e ~ （ ft ） ? f ~ a ? i ~ b ? l ~ c ? q ~ dy為以土地總產值表示的土地生產力f為化肥和農藥的投入i為灌溉投入，即灌溉所需用的水電費l為勞動力投入（考慮了農業機械投入的修正） q為土地質量投入a為平均管理水平t為變化的管理水平a 、 b 、 c 、 d 、 f分別為各相應生產要素的產出彈性系數其中，土地質量因子包括表土質地（ t人有機質含量矚入鹽漬化程度px土體構型p ）等。他們之間的關系為： q （ a ； xt a 。

We discussed the main characteristic parameters of seismic kinesiology and dynamics of mine engineering fracture zone, including relative amplitude, phase time of wave crest, similarity factor, principal frequency band energy, 3 - d space time gradient and coherent coefficient et al., and puts forward the processing method of 3 - d seismic characteristic parameters about denoise - smoothing, generalization, correlation analysis, characteristic transformation ; and presents the method of pattern recognition of mine engineering fracture zone

摘要本文從時間域、頻率域、三維空間域介紹了礦山工程裂隙破碎帶主要的地震運動學、動力學屬性參數，包括相對振幅、波峰相位時間、相似系數、主頻帶能量、二維空間時間梯度和相干系數等，提出了礦山工程裂隙破碎帶三維地震屬性的去噪平滑、歸一化、相關分析、特徵變換的處理方法以及裂隙破碎帶的模式識別原理與方法，並用實例說明了該方法的應用效果。

17 li x, erikson u. novel pdgf family members : pdgf - c and pdgf - d, cytokine growth factor rev, 2003, 14 : 91 ? 98

18劉文，陳家祺，劉祖國等.正常角膜緣組織中與血管生成相關的生長因子及其受體的表達.眼科研究， 2002 ， 20 （ 1 ） : 15 - 18

The term of “ congestion " was firstly used in transport industry, it was considered to be a phenomenon that excessive transport vehicle were input on transport, which causes the blockage and a declining transport capacity ( d. mcfadden, 1978 ). he considered the state of production factor congestion as a border state, which generally represented all phenomenon of a weak disposal capacity formed by improper collocation of production factor. under the assumption of absolutely rational and complete information in classical economics and the principle of manufacturer ’ s maximal profits, the collocation of resources will not achieve " congestion "

本文首先以生產要素擁擠的概念為研究問題的展開基點，指出生產要素擁擠是一種要素配置的無效狀態，利用等產量線圖、生產要素的可處置性理論與廠商生產理論對傳統經濟區域與很少提及的非經濟區域進行了研究，指出生產要素擁擠體現為等產量線后彎，生產要素擁擠形成的后彎部分的等產量線構成了生產函數的非經濟區。

With the procedures, the overall recovery of enzymatic activity reached 20 % and the specific activity for substrate hydantoin was about 4 u / mg protein. the purification factor was about 4. 7 folds with the purity about more than 95 % as estimated by sds - page analysis. d - hydantoinase gene from strain ss - ori was cloned to five different vectors to be five recombinant plasmids and in turn to transfer into five different e. coli strains, respectively

對其中產酶活性最高的一工程菌pexsec一hdt /雲coljblz ] （ de3 ）海因酶的表達條件進行了研究，目的蛋白的表達量約占總菌蛋白的20 % ，其酶活力為0 . 92u / ml ，約是原始菌株的d一海因酶表觀活性的4 . 6倍。