نتایج جستجو برای: 13 weaknesses

تعداد نتایج: 352698  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه الزهراء - دانشکده علوم پایه 1391

توسعه وسایل تشخیصی در پزشکی هسته ای از جمله سیستم توموگرافی گسیل پوزیترون (pet) سهم به سزایی در تشخیص و درمان بسیاری از بیماری ها ی صعب العلاج داشته است. ولیکن با وجود پیشرفت های چشمگیر در زمینه ی توسعه ی سیستم های تصویر برداری، این روش بدلیل عدم توسعه ای هم پا در زمینه تولید رادیوایزوتوپ های کوتاه عمر مورد استفاده در pet به طور گسترده مورد استفاده ی بیمارستانی قرار نگرفته است. پیچیده و پرهزینه...

2004
Markus Göbel MARKUS GÖBEL TOBIAS THOMAS

2006
Jiqiang Lu

Allowing a proxy signer to generate a signature on behalf of an original signer, a proxy signature should satisfy the property of strong unforgeability: anyone except the designated proxy signer cannot create a valid proxy signature on behalf of the original signer. Since proxy signatures, as well as their derivatives, can be used in many applications in reality, such as secure mobile agent, e-...

2014
Antoine Delignat-Lavaud Karthikeyan Bhargavan

Transport Layer Security (TLS) is commonly used to provide server-authenticated secure channels for HTTPS web applications. From the viewpoint of the client, however, the server authentication guarantees of HTTPS are frequently misconstrued to identify a single HTTPS endpoint or origin whereas, in practice, the HTTPS server may be serving any one of a large set of origins. This issue is even mo...

2012
Mike W. Peng Ronaldo C. Parente

Undertaking foreign direct investment (FDI) is the defining feature of multinational enterprises (MNEs). While emerging economies as recipients of FDI are familiar with MNEs, these MNEs tend to be firms from the developed world. A new breed of home-grown MNEs has now arisen from the emerging economies, in particular the group known as BRIC (Brazil, Russia, India, and China). In this article, th...

Journal: :Math. Log. Q. 2002
Chris Pollett Randall Pruim

In this paper we provide a new arithmetic characterization of the levels of the log-time hierarchy (LH). We define arithmetic classes Σ k and Π log k that correspond to Σk-LOGTIME and Πk-LOGTIME respectively. We break Σ k and Π log k into natural hierarchies of subclasses Σm·log k and Π m·log k . We then define bounded arithmetic deduction systems (TΣ k ) ′ whose U{|id|}B(Σ log k )-definable fu...

2016
Zippy Erlich

The philosophy underlying open source software (OSS) is enabling programmers to freely access the software source by distributing the software source code, thus allowing them to use the software for any purpose, to adapt and modify it, and redistribute the original or the modified source for further use, modification, and redistribution. The modifications, which include fixing bugs and improvin...

1993
Joan Daemen René Govaerts Joos Vandewalle

In some applications for synchronous stream ciphers, the risk of loss of synchroniration cannot be eliminated completely. In these cases frequent rcsynchroniration or resynduonisation upon request may be necessary. In the paper it is shown that this can lead to significant deterioration of the cryptographic security. A powerful general attack on nonlinearly filtered linear (over Z,) systems is ...

Journal: :SIAM J. Comput. 1997
Charles H. Bennett Ethan Bernstein Gilles Brassard Umesh V. Vazirani

Recently a great deal of attention has been focused on quantum computation following a sequence of results [Bernstein and Vazirani, in Proc. 25th Annual ACM Symposium Theory Comput., 1993, pp. 11–20, SIAM J. Comput., 26 (1997), pp. 1411–1473], [Simon, in Proc. 35th Annual IEEE Symposium Foundations Comput. Sci., 1994, pp. 116–123, SIAM J. Comput., 26 (1997), pp. 1474–1483], [Shor, in Proc. 35th...

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function paginate(evt) { url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term pg=parseInt(evt.target.text) var data={ "year":filter_year, "term":term, "pgn":pg } filtered_res=post_and_fetch(data,url) window.scrollTo(0,0); } function update_search_meta(search_meta) { meta_place=document.getElementById("search_meta_data") term=search_meta.term active_pgn=search_meta.pgn num_res=search_meta.num_res num_pages=search_meta.num_pages year=search_meta.year meta_place.dataset.term=term meta_place.dataset.page=active_pgn meta_place.dataset.num_res=num_res meta_place.dataset.num_pages=num_pages meta_place.dataset.year=year document.getElementById("num_result_place").innerHTML=num_res if (year !== "unfilter"){ document.getElementById("year_filter_label").style="display:inline;" document.getElementById("year_filter_place").innerHTML=year }else { document.getElementById("year_filter_label").style="display:none;" document.getElementById("year_filter_place").innerHTML="" } } function update_pagination() { search_meta_place=document.getElementById('search_meta_data') num_pages=search_meta_place.dataset.num_pages; active_pgn=parseInt(search_meta_place.dataset.page); document.getElementById("pgn-ul").innerHTML=""; pgn_html=""; for (i = 1; i <= num_pages; i++){ if (i===active_pgn){ actv="active" }else {actv=""} pgn_li="
  • " +i+ "
  • "; pgn_html+=pgn_li; } document.getElementById("pgn-ul").innerHTML=pgn_html var pgn_links = document.querySelectorAll('.mypgn'); pgn_links.forEach(function(pgn_link) { pgn_link.addEventListener('click', paginate) }) } function post_and_fetch(data,url) { showLoading() xhr = new XMLHttpRequest(); xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/json; charset=UTF-8'); xhr.onreadystatechange = function() { if (xhr.readyState === 4 && xhr.status === 200) { var resp = xhr.responseText; resp_json=JSON.parse(resp) resp_place = document.getElementById("search_result_div") resp_place.innerHTML = resp_json['results'] search_meta = resp_json['meta'] update_search_meta(search_meta) update_pagination() hideLoading() } }; xhr.send(JSON.stringify(data)); } function unfilter() { url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":"unfilter", "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } function deactivate_all_bars(){ var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(bar) { bar.dataset.active = false bar.style = "stroke:#71a3c5;" }) } year_chart.on("created", function() { var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(check) { check.addEventListener('click', checkIndex); }) }); function checkIndex(event) { var yrchart = document.querySelectorAll('.ct-bar'); var year_bar = event.target if (year_bar.dataset.active == "true") { unfilter_res = unfilter() year_bar.dataset.active = false year_bar.style = "stroke:#1d2b3699;" } else { deactivate_all_bars() year_bar.dataset.active = true year_bar.style = "stroke:#e56f6f;" filter_year = chart_data['labels'][Array.from(yrchart).indexOf(year_bar)] url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":filter_year, "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } } function showLoading() { document.getElementById("loading").style.display = "block"; setTimeout(hideLoading, 10000); // 10 seconds } function hideLoading() { document.getElementById("loading").style.display = "none"; } -->