نتایج جستجو برای: بلورهای bitio3 و bnt
تعداد نتایج: 760957 فیلتر نتایج به سال:
The purpose of the article is to outline a comprehensive conceptual framework for life skills interventions by integrating aspects of Basic Needs Theory (BNT) and Life Development Intervention (LDI). In particular, we advocate the integration of (a) the three basic psychological needs of autonomy, competence, and relatedness and (b) the needs-supportive motivational climate from BNT with the LD...
Abstract Low-loss tungsten-bronze microwave dielectric ceramics are materials with potential application value for miniaturized filters and antennas in the fifth-generation (5G) communication technology. In this work, a novel Al/Nd co-doping method of Ba 4 Nd 9.33 Ti 18 O 54 (BNT) chemical formula 9.33+ z /3 18− Al (BNT-AN, 0 ⩽ 2) was proposed to improve properties through structural defect mod...
بلورهای فونونی با توجه به پارامترهای فیزیکی و نوع آرایش شبکه آنها دارای نوارهای ممنوعه فرکانسی هستند که به این نوارها، نوار ممنوعه فونونی گفته می شود. امواج مکانیکی با فرکانس واقع در این نوار ممنوعه نمی توانند داخل بلور فونونی انتشار پیدا کنند. می توان با ایجاد نقص در یک بلور فونونی (تغییر شعاع و حذف یک میله (1l) یا سه میله(3l) و یا تغییر شکل یک میله)، درون نوار ممنوعه فونونی مدهایی را به وجود ...
در این تحقق بلورهای ktiopo4 (ktp) به روش هسته سازی خودبه خودی با استفاده از فلاکس kpb2(po3)5.2k2oبا کیفیت بالا رشد داده شد. میزان فراریت و گرانروی و حلالیت فلاکس kpb2(po3)5.2k2o اندازه گیری شد و با مقادیر مربوط به فلاکسk6p4o13، مشهورترین فلاکس برای رشد بلورهای ktp مقایسه شد. با انجام آنالیزهای پراش اشعه ایکس(xrd)، طیف سنجی نور مرئی (uv-vis)و آنالیز شیمیایی(icp)، کیفیت بالای بلورهای رشد داده شده...
Bayesian networks are a formalism for probabilistic reasonning that is more and more used for classification task in data-mining. In some situations, the network structure is given by an expert, otherwise, retrieving it from a database is a NP-hard problem, notably because of the search space complexity. In the last decade, lot of methods have been introduced to learn the network structure auto...
INTRODUCTION The Boston Naming Test (BNT) and the Token Test (TT) are frequently used in clinical practice to assess naming and comprehension. OBJECTIVE The aim of this paper is to present normative data for the BNT and for the TT as part of the NEURONORMA young adults Project. MATERIAL AND METHODS A total of 179 Spanish healthy subjects from 18 to 49 years old were evaluated. Tables to con...
We examined the progression of lexical-retrieval deficits in individuals with neuropathologically determined Alzheimer's disease (AD; n = 23) and a comparison group without criteria for AD (n = 24) to determine whether linguistic changes were a significant marker of the disease. Our participants underwent multiple administrations of a neuropsychological battery, with initial administration occu...
Paroxysmal autonomic instability with dystonia (PAID) is a rare complication of brain injury. Symptoms of PAID include diaphoresis, hyperthermia, hypertension, tachycardia, and tachypnea accompanied by hypertonic movement. Herein, we present the case of a 44-year-old female patient, who was diagnosed with paraneoplastic limbic encephalopathy caused by thyroid papillary cancer. The patient exhib...
Abstract Background We compared neutralizing antibodies in healthy healthcare workers against two different coronavirus 2019 disease (Covid-19) vaccines, a messenger RNA (mRNA)-based vaccine (BNT162b2) and genetically modified organism (virus vector) (ChAdOx1), to obtain immunity. In our cohort, we tried compare the level of antibody production after BNT162b2 booster analyze titers for delta om...
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