nuclear density 中文意思是什麼
nuclear density
解釋
核密度-
Radiation protection of mc - 3c nuclear soil density gauge
治療的放射防護安全性評價 -
One obtain a description of the vibrational modes in terms of self-consistent oscillations of the nuclear density and potential.
藉助核密度和勢的自洽振蕩我們便得到振動模式的描述。 -
The effective coupling constants including isoscalar and mesons and isovector and mesons in the rmf are extracted from the dbhf results in symmetric and asymmetric nuclear matter. two sets of effective interactions in the rmf approach are deduced by imposing a condition, where the dbhf scalar and. vector self - energy or scalar self - energy and binding energy per nucleon at each density and asymmetry parameter are reproduced, respectively
為了使我們提取的有效相互作用能夠準確地再現出dbhf計算的核狀態方程以及密度依賴的不對稱能，我們採用第二種萬法提取有效介子核子耦合常數，即要求在對稱核物質中，每個密度處ilif計算出的標量自能及總結合能與dbhf給出的標量自能及總結合能一致，提取出。 -
The results show that binding energies per nucleon at each density and various asymmetry parameters fulfill the empirical parabolic law and the asymmetry energy is density dependent. it is found that both scalar and vector potentials of neutron in the neutron rich nuclear matter become stronger although the isospin dependence is not stronger. we compare our results with those in a simple method, where the dbhf nucleon self - energies are extracted from the momentum dependence of the single - particle energy
首先我們要求在每一個密度及各種不對稱系數的核物質中，相對論平均場（ rmf ）計算出的核子標量與矢量自能與dbhf計算出的標量與矢量自能一致，從而得到在rmf下的密度依賴的有效介子核子耦合常數，包括同位旋標量介子。 -
Field test methods for nuclear density - moisture gauges
核子水分-密度儀現場測試規程 -
Geoid is the reference datum of spatial data collection, so how to ascertain the geoid, that of all over the world, that of one nation, or that of one zone, is always an nuclear task of surveying science but there is not the quick and automatic solution. the density of the required data of astronomical measurement, gravimeter survey and geodesic survey is not satisfied
大地水準面是空間測量數據外業採集所依據的參考基準面。確定全球、一個國家、一個地區的大地水準面的形狀始終是測繪科學的一項核心內容，一直未能有快速、簡潔、自動的解決方法。需要的天文測量、重力測量、大地測量等數據的密度無法滿足其需要。 -
The calibration for petroleum nuclear logging tool part 3 : the calibration for compensated density litho - density tool
石油核測井儀刻度.第3部分:補償密度巖性密度測井儀刻度 -
Meanwhile we find that decay constant fn and the tt mass mv monotonously decrease as nuclear matter density increases
我們同時發現介子的衰變常數f _和質量m _隨著核物質密度_ n的增加而單調遞減。 -
Nuclear instrumentation - density gauges utilizing ionizing radiation - definitions and test methods iec 60692 : 1999
核設備.電離輻射式密度計.定義和檢驗方法 -
In order to reduce radiation on the operator, a remote - control nuclear surface moisture - density gauge is developed by improving the original nuclear surface moisture - density gauge
摘要為減少放射源對儀器操作人員輻射的影響，對表層型核子水分密度儀進行了改進，研製出遙讀遙測式表層型核子水分密度儀。 -
The isospin effect and k production in intermediate and high energy heavy ion collisions ( hics ) are hot topics in the nuclear physics. based on the isospin - dependent quantum molecular dyanmics ( iqmd ) model and self - consistent relativistic boltzmann - uehling - uhlenbeck ( rbuu ) model, we have studied them and obtained some interesting results. as for the study of isospin in intermediate energy hics, we ' ve investigated how both stength ( q ) and density dependence of symmetry potential ( sp ) affect many measurable observables, such as the yield, phase - space, and isospin distributions of fragments, as well as the correlations between intermediate - mass - fragment ( imf ) multiplicity n and charged - particle multiplicity n, light - charged - particle ( lcp ) multiplicity n, and neutron multiplicity n,
在中能重離子碰撞的同位旋研究方面，分別研究了對稱勢的強度（ c _ s ）和其密度依賴形式對中能重離子核反應各類碎片產物產額、相空間、及其同位旋的分佈，中等質量碎片多重數（ n _ （ imf ） ）與帶電粒子多重數（ n _ c ） 、輕帶電粒子多重數（ n _ k ） 、中子多重數（ n _ n ）的關聯等多種實驗觀測量的影響，以獲取對稱勢中該兩方面的信息，尤其著重於研究如何分別獲取有關該兩方面的信息的途徑。 -
Standard test methods for density of soil and soil - aggregate in place by nuclear methods shallow depth
核放射法現場測定土壤和土壤集料密度的標準試驗方法 -
Each group contained 15 patients with a nuclear density of grade 3
每組十五個病人，核密度等級為3 。 -
Standard test method for density of bituminous concrete in place by nuclear methods
用核技術現場測定瀝青混凝土密度的標準試驗方法 -
In the frame of gcm, by introducing the chemical potential of baryons in this paper, we have found an effective method to study some properties of tt meson in a nuclear matter with finite density
在gcm理論框架下通過將化學勢引入雙定域場和有效作用量，本文找到一種有效的方法研究介子在有限密度核物質中的一些性質。 -
The nucleon dbhf self - energy in the nuclear medium, therefore, can be calculated with the g matrix in the relativistic hartree - fock approximation. with the calculated nucleon self - energy in the dbhf, we extract nucleon effective interactions hi the framework of the relativistic mean field theory ( rmf ), which contains the effect of the nucleon - nucleon short - range correlation and information of the isospin structure. applying the effective interaction, which is composed of density dependent meson - nucleon coupling constants, we study the properties of finite nuclei and come to some useful conclusions
本文應用相對論dirac - brueckner - hartree - fock （ dbhf ）方法，利用新的g矩陣分解方式g = v + g ，用g矩陣在相對論hartree - fock近似下，即等效的dbhf方法，系統地討論了對稱、不對稱核物質及中子物質的性質，利用對稱及不對稱核物質中自能的dirac結構，我們提取出含有核子-核子短程關聯效應和同位旋結構信息的有效相互作用介子耦合常數，並對有限核的性質做了詳細的討論，得到不少有意義的結果。 -
Standard test method for nondestructive assay of special nuclear material in low density scrap and waste by segmented passive gamma - ray scanning
分段無源射線掃描法對低密度廢料及殘渣中特殊核材料進行無損檢驗的標準試驗方法 -
3 ) we tested total - family association, within - family association ( via tdt ), and linkage, between the bsrbl marker and bone phenotypes ( bmd and bone size ) at the spine and the hip ( femoral neck, torchanter and intertrochanter ) in chinese 402 nuclear families with a total number of 1263, and found the suggestive linkage ( p - 0. 037 ) between the il - 6 bsrbl maker and the li _ 4 spine bmd. no significant association and linkage was found for bone size and hip bmd. the present studies represented molecular genetic research of bone mineral density, and identified some factors related to bmd in chinese
3 ）在徵集的402個核心家庭包括1263個個體組成的上海樣本中，利用傳遞不平衡檢測法（ tdt ） 、關聯分析和連鎖分析，檢測了白介素6基因和不同骨骼位點（腰椎、股骨頸、大轉子、轉子間區）的骨密度、骨大小之間的連鎖和/或關聯關系，並發現白介素6基因的bsrb工標記和控制腰椎骨密度的數量性狀位點（ qtl ）之間存在連鎖的證據（ p = 0 . 037 ） 。 -
Iowa department of transport, methods of test evaluation segregationin hot - mix asphalt pavement using a nuclear density gauge
沈金安.瀝青及瀝青混合料路用性能[ m ] ，北京:人民交通出版杜， 2001 -
Because of the upper limit of the nuclear density, which prevents the core to compress too far, the collapsing inner core will bounce back outwards. this out - going inner core will collide with the in - coming outer core, which is collapsing rapidly. this collision will send off shock waves and create heavy elements, like uranium
由於原子核的天然密度會成為巨大的阻力，防止核心進一步收縮，這時核心會猛烈反彈，以極高速塌縮的核心外殼會和反彈中的核心碰撞，產生強烈的沖擊波，同時產生出像鈾等比鐵更重的元素，並把恆星外殼炸毀，這便是
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