نتایج جستجو برای: di erentialinvariant
تعداد نتایج: 255466 فیلتر نتایج به سال:
DESCRIPTION: A 2-D imaging procedure for ultrasonic nondestructive testing has to be realized. It relies on both the use of pseudo-orthogonal sequences and of an inversion procedure made robust by combining the conjugate gradient iterative method with the Total Variation regularization. The effectiveness of the proposed procedure has been verified by experimental results: the overall system pro...
Sistemi informatici sempre più complessi sono ormai costantemente parte della vita di tutti i giorni di milioni di persone. Le applicazioni software che gestiscono questi sistemi informatici diventano man mano sempre più grosse e difficili da gestire e per questo l’incidenza del numero di bug al loro interno è diventata sempre più alta. La creazione di un software perfetto, ossia senza bug, è u...
Dipartimento di Matematica e Fisica “E. De Giorgi”, Università del Salento, Italy Istituto Nazionale di Fisica Nucleare sez. di Lecce, Lecce, Italy Dipartimento di Fisica, Università di Bari, Italy Istituto Nazionale di Fisica Nucleare sez. di Bari, Genova, Italy Dipartimento di Fisica, Università di Genova, Italy f Istituto Nazionale di Fisica Nucleare sez. di Genova, Genova, Italy Dipartiment...
در این طرح تأثیر سوء مصرف روغن هیدروژنه شده حاوی روغن پالم (روغن نخل )بر روی لیپید انسان به خصوص کلسترول بد (LDL) مورد بررسی قرارگرفت . سیزده نفر داوطلبان درمدت شانزده روز با تنظیم نمودن جیره غذایی برحسب وزن ‘ سن ‘ قد وفعالیت بدنی از روغن نباتی هیدروژنه شده حاوی روغن پالم(روغن جامدحاوی 9/22 درصد اسید پالمتیک) تغذیه شدند. برای تعیین صحت طرح تحقیقاتی از طرح آماری آنالیز واریانس با دسته بندی یکطرف...
Introduction: Heat stress is one of the hazardous agents in the steel industries which can threaten the health and safety of workers and lead to serious occupational diseases. The aim of the study was to assess the heat stress in the steel industries and compare PHS (Physiological Strain Index), WBGT (Wet-Bulb Globe Temperature), DI (Discomfort Index) and HSI (Heat Stress Index) indices for the...
a new poly(vinylchloride) membrane sensor for cr3+ ions based on di (benzylamino)glyoxime asan ionophore was prepared. the electrode has a linear dynamic range 1×10-6-1×10-1 mol l-1,with anernstian slope of 20.3 ± 0.5 mv per decade and a detection limit of 2×10-7. it has a fast responsetime of
in order to increase the rate of gas absorption, chemical reaction in the liquid phase is considered. the purpose of this paper was to simulate gas absorption process by a liquid film over a spherical packing incorporating eddy viscosity and diffusivity. second order chemical reaction for two different cases (fast and slow) were considered. the system partial differential equations obtained was...
The title compound, (C(12)H(28)N)(2)[Cu(3.194)I(6)(C(5)H(5)N)(2)] was prepared from reaction of copper powder, copper(I) oxide, hydro-iodic acid, tetra-propyl-ammonium iodide and pyridine under hydro-thermal conditions. In the centrosymmetric Cu(4)I(6) (2-) anion, one Cu site is in a trigonal-planar coordination while the second Cu site, which is only partially occupied [site occupancy of 0.596...
Acknowledgments I would like to thank my supervisor: my tough and fruitful PhD years have been characterized by collaborating with Vincenzo Lombardo. I thank the of Turin, and the head of the Center, Bruno Bara: in these years, I took advantage of their support, as well. For what pertains the thesis, I'm truly indebted with Monica Buccia-relli, for her precious advices about the experimentation...
Sommario In questo lavoro si introducono le attività sperimentali finalizzate alla realizzazione di un servizio per la ricerca della modulistica pubblicata dalle Pubbliche Amministrazioni (PA) italiane sui propri siti istituzionali e condotte nell’ambito del progetto pubblico “Italia.gov.it il motore della PA digitale”. In tale contesto la necessità di creare e aggiornare una collezione compost...
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